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-rw-r--r--drivers/input/evdev.c100
-rw-r--r--drivers/input/gameport/emu10k1-gp.c44
-rw-r--r--drivers/input/gameport/fm801-gp.c10
-rw-r--r--drivers/input/input.c198
-rw-r--r--drivers/input/keyboard/Kconfig19
-rw-r--r--drivers/input/keyboard/Makefile2
-rw-r--r--drivers/input/keyboard/adp5588-keys.c2
-rw-r--r--drivers/input/keyboard/hil_kbd.c2
-rw-r--r--drivers/input/keyboard/nomadik-ske-keypad.c408
-rw-r--r--drivers/input/keyboard/omap4-keypad.c318
-rw-r--r--drivers/input/keyboard/twl4030_keypad.c7
-rw-r--r--drivers/input/misc/Kconfig10
-rw-r--r--drivers/input/misc/Makefile1
-rw-r--r--drivers/input/misc/ab8500-ponkey.c157
-rw-r--r--drivers/input/misc/ati_remote2.c93
-rw-r--r--drivers/input/misc/powermate.c2
-rw-r--r--drivers/input/mouse/elantech.c2
-rw-r--r--drivers/input/mouse/psmouse-base.c4
-rw-r--r--drivers/input/mouse/synaptics.c38
-rw-r--r--drivers/input/mouse/synaptics.h2
-rw-r--r--drivers/input/mouse/trackpoint.c2
-rw-r--r--drivers/input/mousedev.c2
-rw-r--r--drivers/input/serio/Kconfig9
-rw-r--r--drivers/input/serio/Makefile1
-rw-r--r--drivers/input/serio/i8042.c2
-rw-r--r--drivers/input/serio/ps2mult.c318
-rw-r--r--drivers/input/serio/serio.c125
-rw-r--r--drivers/input/sparse-keymap.c81
-rw-r--r--drivers/input/tablet/Kconfig11
-rw-r--r--drivers/input/tablet/Makefile1
-rw-r--r--drivers/input/tablet/hanwang.c446
-rw-r--r--drivers/input/tablet/wacom.h1
-rw-r--r--drivers/input/tablet/wacom_sys.c77
-rw-r--r--drivers/input/tablet/wacom_wac.c253
-rw-r--r--drivers/input/tablet/wacom_wac.h15
-rw-r--r--drivers/input/touchscreen/Kconfig34
-rw-r--r--drivers/input/touchscreen/Makefile3
-rw-r--r--drivers/input/touchscreen/ad7877.c144
-rw-r--r--drivers/input/touchscreen/ads7846.c886
-rw-r--r--drivers/input/touchscreen/bu21013_ts.c648
-rw-r--r--drivers/input/touchscreen/cy8ctmg110_ts.c4
-rw-r--r--drivers/input/touchscreen/hp680_ts_input.c6
-rw-r--r--drivers/input/touchscreen/intel-mid-touch.c687
-rw-r--r--drivers/input/touchscreen/lpc32xx_ts.c411
-rw-r--r--drivers/input/touchscreen/s3c2410_ts.c2
-rw-r--r--drivers/input/touchscreen/stmpe-ts.c11
-rw-r--r--drivers/input/touchscreen/tps6507x-ts.c3
-rw-r--r--drivers/input/touchscreen/tsc2007.c2
-rw-r--r--drivers/input/touchscreen/wacom_w8001.c185
-rw-r--r--drivers/input/touchscreen/wm97xx-core.c18
50 files changed, 5051 insertions, 756 deletions
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 535fea4fe67f..e3f7fc6f9565 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -534,6 +534,80 @@ static int handle_eviocgbit(struct input_dev *dev,
534} 534}
535#undef OLD_KEY_MAX 535#undef OLD_KEY_MAX
536 536
537static int evdev_handle_get_keycode(struct input_dev *dev,
538 void __user *p, size_t size)
539{
540 struct input_keymap_entry ke;
541 int error;
542
543 memset(&ke, 0, sizeof(ke));
544
545 if (size == sizeof(unsigned int[2])) {
546 /* legacy case */
547 int __user *ip = (int __user *)p;
548
549 if (copy_from_user(ke.scancode, p, sizeof(unsigned int)))
550 return -EFAULT;
551
552 ke.len = sizeof(unsigned int);
553 ke.flags = 0;
554
555 error = input_get_keycode(dev, &ke);
556 if (error)
557 return error;
558
559 if (put_user(ke.keycode, ip + 1))
560 return -EFAULT;
561
562 } else {
563 size = min(size, sizeof(ke));
564
565 if (copy_from_user(&ke, p, size))
566 return -EFAULT;
567
568 error = input_get_keycode(dev, &ke);
569 if (error)
570 return error;
571
572 if (copy_to_user(p, &ke, size))
573 return -EFAULT;
574 }
575 return 0;
576}
577
578static int evdev_handle_set_keycode(struct input_dev *dev,
579 void __user *p, size_t size)
580{
581 struct input_keymap_entry ke;
582
583 memset(&ke, 0, sizeof(ke));
584
585 if (size == sizeof(unsigned int[2])) {
586 /* legacy case */
587 int __user *ip = (int __user *)p;
588
589 if (copy_from_user(ke.scancode, p, sizeof(unsigned int)))
590 return -EFAULT;
591
592 if (get_user(ke.keycode, ip + 1))
593 return -EFAULT;
594
595 ke.len = sizeof(unsigned int);
596 ke.flags = 0;
597
598 } else {
599 size = min(size, sizeof(ke));
600
601 if (copy_from_user(&ke, p, size))
602 return -EFAULT;
603
604 if (ke.len > sizeof(ke.scancode))
605 return -EINVAL;
606 }
607
608 return input_set_keycode(dev, &ke);
609}
610
537static long evdev_do_ioctl(struct file *file, unsigned int cmd, 611static long evdev_do_ioctl(struct file *file, unsigned int cmd,
538 void __user *p, int compat_mode) 612 void __user *p, int compat_mode)
539{ 613{
@@ -580,25 +654,6 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
580 654
581 return 0; 655 return 0;
582 656
583 case EVIOCGKEYCODE:
584 if (get_user(t, ip))
585 return -EFAULT;
586
587 error = input_get_keycode(dev, t, &v);
588 if (error)
589 return error;
590
591 if (put_user(v, ip + 1))
592 return -EFAULT;
593
594 return 0;
595
596 case EVIOCSKEYCODE:
597 if (get_user(t, ip) || get_user(v, ip + 1))
598 return -EFAULT;
599
600 return input_set_keycode(dev, t, v);
601
602 case EVIOCRMFF: 657 case EVIOCRMFF:
603 return input_ff_erase(dev, (int)(unsigned long) p, file); 658 return input_ff_erase(dev, (int)(unsigned long) p, file);
604 659
@@ -620,7 +675,6 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
620 675
621 /* Now check variable-length commands */ 676 /* Now check variable-length commands */
622#define EVIOC_MASK_SIZE(nr) ((nr) & ~(_IOC_SIZEMASK << _IOC_SIZESHIFT)) 677#define EVIOC_MASK_SIZE(nr) ((nr) & ~(_IOC_SIZEMASK << _IOC_SIZESHIFT))
623
624 switch (EVIOC_MASK_SIZE(cmd)) { 678 switch (EVIOC_MASK_SIZE(cmd)) {
625 679
626 case EVIOCGKEY(0): 680 case EVIOCGKEY(0):
@@ -654,6 +708,12 @@ static long evdev_do_ioctl(struct file *file, unsigned int cmd,
654 return -EFAULT; 708 return -EFAULT;
655 709
656 return error; 710 return error;
711
712 case EVIOC_MASK_SIZE(EVIOCGKEYCODE):
713 return evdev_handle_get_keycode(dev, p, size);
714
715 case EVIOC_MASK_SIZE(EVIOCSKEYCODE):
716 return evdev_handle_set_keycode(dev, p, size);
657 } 717 }
658 718
659 /* Multi-number variable-length handlers */ 719 /* Multi-number variable-length handlers */
diff --git a/drivers/input/gameport/emu10k1-gp.c b/drivers/input/gameport/emu10k1-gp.c
index 7392992da424..422aa0a6b77f 100644
--- a/drivers/input/gameport/emu10k1-gp.c
+++ b/drivers/input/gameport/emu10k1-gp.c
@@ -59,44 +59,52 @@ MODULE_DEVICE_TABLE(pci, emu_tbl);
59 59
60static int __devinit emu_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 60static int __devinit emu_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
61{ 61{
62 int ioport, iolen;
63 struct emu *emu; 62 struct emu *emu;
64 struct gameport *port; 63 struct gameport *port;
65 64 int error;
66 if (pci_enable_device(pdev))
67 return -EBUSY;
68
69 ioport = pci_resource_start(pdev, 0);
70 iolen = pci_resource_len(pdev, 0);
71
72 if (!request_region(ioport, iolen, "emu10k1-gp"))
73 return -EBUSY;
74 65
75 emu = kzalloc(sizeof(struct emu), GFP_KERNEL); 66 emu = kzalloc(sizeof(struct emu), GFP_KERNEL);
76 port = gameport_allocate_port(); 67 port = gameport_allocate_port();
77 if (!emu || !port) { 68 if (!emu || !port) {
78 printk(KERN_ERR "emu10k1-gp: Memory allocation failed\n"); 69 printk(KERN_ERR "emu10k1-gp: Memory allocation failed\n");
79 release_region(ioport, iolen); 70 error = -ENOMEM;
80 kfree(emu); 71 goto err_out_free;
81 gameport_free_port(port);
82 return -ENOMEM;
83 } 72 }
84 73
85 emu->io = ioport; 74 error = pci_enable_device(pdev);
86 emu->size = iolen; 75 if (error)
76 goto err_out_free;
77
78 emu->io = pci_resource_start(pdev, 0);
79 emu->size = pci_resource_len(pdev, 0);
80
87 emu->dev = pdev; 81 emu->dev = pdev;
88 emu->gameport = port; 82 emu->gameport = port;
89 83
90 gameport_set_name(port, "EMU10K1"); 84 gameport_set_name(port, "EMU10K1");
91 gameport_set_phys(port, "pci%s/gameport0", pci_name(pdev)); 85 gameport_set_phys(port, "pci%s/gameport0", pci_name(pdev));
92 port->dev.parent = &pdev->dev; 86 port->dev.parent = &pdev->dev;
93 port->io = ioport; 87 port->io = emu->io;
88
89 if (!request_region(emu->io, emu->size, "emu10k1-gp")) {
90 printk(KERN_ERR "emu10k1-gp: unable to grab region 0x%x-0x%x\n",
91 emu->io, emu->io + emu->size - 1);
92 error = -EBUSY;
93 goto err_out_disable_dev;
94 }
94 95
95 pci_set_drvdata(pdev, emu); 96 pci_set_drvdata(pdev, emu);
96 97
97 gameport_register_port(port); 98 gameport_register_port(port);
98 99
99 return 0; 100 return 0;
101
102 err_out_disable_dev:
103 pci_disable_device(pdev);
104 err_out_free:
105 gameport_free_port(port);
106 kfree(emu);
107 return error;
100} 108}
101 109
102static void __devexit emu_remove(struct pci_dev *pdev) 110static void __devexit emu_remove(struct pci_dev *pdev)
@@ -106,6 +114,8 @@ static void __devexit emu_remove(struct pci_dev *pdev)
106 gameport_unregister_port(emu->gameport); 114 gameport_unregister_port(emu->gameport);
107 release_region(emu->io, emu->size); 115 release_region(emu->io, emu->size);
108 kfree(emu); 116 kfree(emu);
117
118 pci_disable_device(pdev);
109} 119}
110 120
111static struct pci_driver emu_driver = { 121static struct pci_driver emu_driver = {
diff --git a/drivers/input/gameport/fm801-gp.c b/drivers/input/gameport/fm801-gp.c
index 14d3f3e208a2..a3b70ff21018 100644
--- a/drivers/input/gameport/fm801-gp.c
+++ b/drivers/input/gameport/fm801-gp.c
@@ -133,11 +133,11 @@ static void __devexit fm801_gp_remove(struct pci_dev *pci)
133{ 133{
134 struct fm801_gp *gp = pci_get_drvdata(pci); 134 struct fm801_gp *gp = pci_get_drvdata(pci);
135 135
136 if (gp) { 136 gameport_unregister_port(gp->gameport);
137 gameport_unregister_port(gp->gameport); 137 release_resource(gp->res_port);
138 release_resource(gp->res_port); 138 kfree(gp);
139 kfree(gp); 139
140 } 140 pci_disable_device(pci);
141} 141}
142 142
143static const struct pci_device_id fm801_gp_id_table[] = { 143static const struct pci_device_id fm801_gp_id_table[] = {
diff --git a/drivers/input/input.c b/drivers/input/input.c
index 7919c2537225..d092ef9291da 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -171,7 +171,7 @@ static int input_handle_abs_event(struct input_dev *dev,
171 if (code == ABS_MT_SLOT) { 171 if (code == ABS_MT_SLOT) {
172 /* 172 /*
173 * "Stage" the event; we'll flush it later, when we 173 * "Stage" the event; we'll flush it later, when we
174 * get actiual touch data. 174 * get actual touch data.
175 */ 175 */
176 if (*pval >= 0 && *pval < dev->mtsize) 176 if (*pval >= 0 && *pval < dev->mtsize)
177 dev->slot = *pval; 177 dev->slot = *pval;
@@ -188,7 +188,7 @@ static int input_handle_abs_event(struct input_dev *dev,
188 pold = &mtslot->abs[code - ABS_MT_FIRST]; 188 pold = &mtslot->abs[code - ABS_MT_FIRST];
189 } else { 189 } else {
190 /* 190 /*
191 * Bypass filtering for multitouch events when 191 * Bypass filtering for multi-touch events when
192 * not employing slots. 192 * not employing slots.
193 */ 193 */
194 pold = NULL; 194 pold = NULL;
@@ -634,78 +634,141 @@ static void input_disconnect_device(struct input_dev *dev)
634 spin_unlock_irq(&dev->event_lock); 634 spin_unlock_irq(&dev->event_lock);
635} 635}
636 636
637static int input_fetch_keycode(struct input_dev *dev, int scancode) 637/**
638 * input_scancode_to_scalar() - converts scancode in &struct input_keymap_entry
639 * @ke: keymap entry containing scancode to be converted.
640 * @scancode: pointer to the location where converted scancode should
641 * be stored.
642 *
643 * This function is used to convert scancode stored in &struct keymap_entry
644 * into scalar form understood by legacy keymap handling methods. These
645 * methods expect scancodes to be represented as 'unsigned int'.
646 */
647int input_scancode_to_scalar(const struct input_keymap_entry *ke,
648 unsigned int *scancode)
649{
650 switch (ke->len) {
651 case 1:
652 *scancode = *((u8 *)ke->scancode);
653 break;
654
655 case 2:
656 *scancode = *((u16 *)ke->scancode);
657 break;
658
659 case 4:
660 *scancode = *((u32 *)ke->scancode);
661 break;
662
663 default:
664 return -EINVAL;
665 }
666
667 return 0;
668}
669EXPORT_SYMBOL(input_scancode_to_scalar);
670
671/*
672 * Those routines handle the default case where no [gs]etkeycode() is
673 * defined. In this case, an array indexed by the scancode is used.
674 */
675
676static unsigned int input_fetch_keycode(struct input_dev *dev,
677 unsigned int index)
638{ 678{
639 switch (dev->keycodesize) { 679 switch (dev->keycodesize) {
640 case 1: 680 case 1:
641 return ((u8 *)dev->keycode)[scancode]; 681 return ((u8 *)dev->keycode)[index];
642 682
643 case 2: 683 case 2:
644 return ((u16 *)dev->keycode)[scancode]; 684 return ((u16 *)dev->keycode)[index];
645 685
646 default: 686 default:
647 return ((u32 *)dev->keycode)[scancode]; 687 return ((u32 *)dev->keycode)[index];
648 } 688 }
649} 689}
650 690
651static int input_default_getkeycode(struct input_dev *dev, 691static int input_default_getkeycode(struct input_dev *dev,
652 unsigned int scancode, 692 struct input_keymap_entry *ke)
653 unsigned int *keycode)
654{ 693{
694 unsigned int index;
695 int error;
696
655 if (!dev->keycodesize) 697 if (!dev->keycodesize)
656 return -EINVAL; 698 return -EINVAL;
657 699
658 if (scancode >= dev->keycodemax) 700 if (ke->flags & INPUT_KEYMAP_BY_INDEX)
701 index = ke->index;
702 else {
703 error = input_scancode_to_scalar(ke, &index);
704 if (error)
705 return error;
706 }
707
708 if (index >= dev->keycodemax)
659 return -EINVAL; 709 return -EINVAL;
660 710
661 *keycode = input_fetch_keycode(dev, scancode); 711 ke->keycode = input_fetch_keycode(dev, index);
712 ke->index = index;
713 ke->len = sizeof(index);
714 memcpy(ke->scancode, &index, sizeof(index));
662 715
663 return 0; 716 return 0;
664} 717}
665 718
666static int input_default_setkeycode(struct input_dev *dev, 719static int input_default_setkeycode(struct input_dev *dev,
667 unsigned int scancode, 720 const struct input_keymap_entry *ke,
668 unsigned int keycode) 721 unsigned int *old_keycode)
669{ 722{
670 int old_keycode; 723 unsigned int index;
724 int error;
671 int i; 725 int i;
672 726
673 if (scancode >= dev->keycodemax) 727 if (!dev->keycodesize)
674 return -EINVAL; 728 return -EINVAL;
675 729
676 if (!dev->keycodesize) 730 if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
731 index = ke->index;
732 } else {
733 error = input_scancode_to_scalar(ke, &index);
734 if (error)
735 return error;
736 }
737
738 if (index >= dev->keycodemax)
677 return -EINVAL; 739 return -EINVAL;
678 740
679 if (dev->keycodesize < sizeof(keycode) && (keycode >> (dev->keycodesize * 8))) 741 if (dev->keycodesize < sizeof(dev->keycode) &&
742 (ke->keycode >> (dev->keycodesize * 8)))
680 return -EINVAL; 743 return -EINVAL;
681 744
682 switch (dev->keycodesize) { 745 switch (dev->keycodesize) {
683 case 1: { 746 case 1: {
684 u8 *k = (u8 *)dev->keycode; 747 u8 *k = (u8 *)dev->keycode;
685 old_keycode = k[scancode]; 748 *old_keycode = k[index];
686 k[scancode] = keycode; 749 k[index] = ke->keycode;
687 break; 750 break;
688 } 751 }
689 case 2: { 752 case 2: {
690 u16 *k = (u16 *)dev->keycode; 753 u16 *k = (u16 *)dev->keycode;
691 old_keycode = k[scancode]; 754 *old_keycode = k[index];
692 k[scancode] = keycode; 755 k[index] = ke->keycode;
693 break; 756 break;
694 } 757 }
695 default: { 758 default: {
696 u32 *k = (u32 *)dev->keycode; 759 u32 *k = (u32 *)dev->keycode;
697 old_keycode = k[scancode]; 760 *old_keycode = k[index];
698 k[scancode] = keycode; 761 k[index] = ke->keycode;
699 break; 762 break;
700 } 763 }
701 } 764 }
702 765
703 __clear_bit(old_keycode, dev->keybit); 766 __clear_bit(*old_keycode, dev->keybit);
704 __set_bit(keycode, dev->keybit); 767 __set_bit(ke->keycode, dev->keybit);
705 768
706 for (i = 0; i < dev->keycodemax; i++) { 769 for (i = 0; i < dev->keycodemax; i++) {
707 if (input_fetch_keycode(dev, i) == old_keycode) { 770 if (input_fetch_keycode(dev, i) == *old_keycode) {
708 __set_bit(old_keycode, dev->keybit); 771 __set_bit(*old_keycode, dev->keybit);
709 break; /* Setting the bit twice is useless, so break */ 772 break; /* Setting the bit twice is useless, so break */
710 } 773 }
711 } 774 }
@@ -716,53 +779,86 @@ static int input_default_setkeycode(struct input_dev *dev,
716/** 779/**
717 * input_get_keycode - retrieve keycode currently mapped to a given scancode 780 * input_get_keycode - retrieve keycode currently mapped to a given scancode
718 * @dev: input device which keymap is being queried 781 * @dev: input device which keymap is being queried
719 * @scancode: scancode (or its equivalent for device in question) for which 782 * @ke: keymap entry
720 * keycode is needed
721 * @keycode: result
722 * 783 *
723 * This function should be called by anyone interested in retrieving current 784 * This function should be called by anyone interested in retrieving current
724 * keymap. Presently keyboard and evdev handlers use it. 785 * keymap. Presently evdev handlers use it.
725 */ 786 */
726int input_get_keycode(struct input_dev *dev, 787int input_get_keycode(struct input_dev *dev, struct input_keymap_entry *ke)
727 unsigned int scancode, unsigned int *keycode)
728{ 788{
729 unsigned long flags; 789 unsigned long flags;
730 int retval; 790 int retval;
731 791
732 spin_lock_irqsave(&dev->event_lock, flags); 792 spin_lock_irqsave(&dev->event_lock, flags);
733 retval = dev->getkeycode(dev, scancode, keycode);
734 spin_unlock_irqrestore(&dev->event_lock, flags);
735 793
794 if (dev->getkeycode) {
795 /*
796 * Support for legacy drivers, that don't implement the new
797 * ioctls
798 */
799 u32 scancode = ke->index;
800
801 memcpy(ke->scancode, &scancode, sizeof(scancode));
802 ke->len = sizeof(scancode);
803 retval = dev->getkeycode(dev, scancode, &ke->keycode);
804 } else {
805 retval = dev->getkeycode_new(dev, ke);
806 }
807
808 spin_unlock_irqrestore(&dev->event_lock, flags);
736 return retval; 809 return retval;
737} 810}
738EXPORT_SYMBOL(input_get_keycode); 811EXPORT_SYMBOL(input_get_keycode);
739 812
740/** 813/**
741 * input_get_keycode - assign new keycode to a given scancode 814 * input_set_keycode - attribute a keycode to a given scancode
742 * @dev: input device which keymap is being updated 815 * @dev: input device which keymap is being updated
743 * @scancode: scancode (or its equivalent for device in question) 816 * @ke: new keymap entry
744 * @keycode: new keycode to be assigned to the scancode
745 * 817 *
746 * This function should be called by anyone needing to update current 818 * This function should be called by anyone needing to update current
747 * keymap. Presently keyboard and evdev handlers use it. 819 * keymap. Presently keyboard and evdev handlers use it.
748 */ 820 */
749int input_set_keycode(struct input_dev *dev, 821int input_set_keycode(struct input_dev *dev,
750 unsigned int scancode, unsigned int keycode) 822 const struct input_keymap_entry *ke)
751{ 823{
752 unsigned long flags; 824 unsigned long flags;
753 unsigned int old_keycode; 825 unsigned int old_keycode;
754 int retval; 826 int retval;
755 827
756 if (keycode > KEY_MAX) 828 if (ke->keycode > KEY_MAX)
757 return -EINVAL; 829 return -EINVAL;
758 830
759 spin_lock_irqsave(&dev->event_lock, flags); 831 spin_lock_irqsave(&dev->event_lock, flags);
760 832
761 retval = dev->getkeycode(dev, scancode, &old_keycode); 833 if (dev->setkeycode) {
762 if (retval) 834 /*
763 goto out; 835 * Support for legacy drivers, that don't implement the new
836 * ioctls
837 */
838 unsigned int scancode;
839
840 retval = input_scancode_to_scalar(ke, &scancode);
841 if (retval)
842 goto out;
843
844 /*
845 * We need to know the old scancode, in order to generate a
846 * keyup effect, if the set operation happens successfully
847 */
848 if (!dev->getkeycode) {
849 retval = -EINVAL;
850 goto out;
851 }
852
853 retval = dev->getkeycode(dev, scancode, &old_keycode);
854 if (retval)
855 goto out;
856
857 retval = dev->setkeycode(dev, scancode, ke->keycode);
858 } else {
859 retval = dev->setkeycode_new(dev, ke, &old_keycode);
860 }
764 861
765 retval = dev->setkeycode(dev, scancode, keycode);
766 if (retval) 862 if (retval)
767 goto out; 863 goto out;
768 864
@@ -1601,7 +1697,7 @@ EXPORT_SYMBOL(input_free_device);
1601 * 1697 *
1602 * This function allocates all necessary memory for MT slot handling in the 1698 * This function allocates all necessary memory for MT slot handling in the
1603 * input device, and adds ABS_MT_SLOT to the device capabilities. All slots 1699 * input device, and adds ABS_MT_SLOT to the device capabilities. All slots
1604 * are initially marked as unused iby setting ABS_MT_TRACKING_ID to -1. 1700 * are initially marked as unused by setting ABS_MT_TRACKING_ID to -1.
1605 */ 1701 */
1606int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots) 1702int input_mt_create_slots(struct input_dev *dev, unsigned int num_slots)
1607{ 1703{
@@ -1759,11 +1855,11 @@ int input_register_device(struct input_dev *dev)
1759 dev->rep[REP_PERIOD] = 33; 1855 dev->rep[REP_PERIOD] = 33;
1760 } 1856 }
1761 1857
1762 if (!dev->getkeycode) 1858 if (!dev->getkeycode && !dev->getkeycode_new)
1763 dev->getkeycode = input_default_getkeycode; 1859 dev->getkeycode_new = input_default_getkeycode;
1764 1860
1765 if (!dev->setkeycode) 1861 if (!dev->setkeycode && !dev->setkeycode_new)
1766 dev->setkeycode = input_default_setkeycode; 1862 dev->setkeycode_new = input_default_setkeycode;
1767 1863
1768 dev_set_name(&dev->dev, "input%ld", 1864 dev_set_name(&dev->dev, "input%ld",
1769 (unsigned long) atomic_inc_return(&input_no) - 1); 1865 (unsigned long) atomic_inc_return(&input_no) - 1);
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index aa037fec2f86..0426630f0e98 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -327,6 +327,16 @@ config KEYBOARD_NEWTON
327 To compile this driver as a module, choose M here: the 327 To compile this driver as a module, choose M here: the
328 module will be called newtonkbd. 328 module will be called newtonkbd.
329 329
330config KEYBOARD_NOMADIK
331 tristate "ST-Ericsson Nomadik SKE keyboard"
332 depends on PLAT_NOMADIK
333 help
334 Say Y here if you want to use a keypad provided on the SKE controller
335 used on the Ux500 and Nomadik platforms
336
337 To compile this driver as a module, choose M here: the
338 module will be called nmk-ske-keypad.
339
330config KEYBOARD_OPENCORES 340config KEYBOARD_OPENCORES
331 tristate "OpenCores Keyboard Controller" 341 tristate "OpenCores Keyboard Controller"
332 help 342 help
@@ -424,6 +434,15 @@ config KEYBOARD_OMAP
424 To compile this driver as a module, choose M here: the 434 To compile this driver as a module, choose M here: the
425 module will be called omap-keypad. 435 module will be called omap-keypad.
426 436
437config KEYBOARD_OMAP4
438 tristate "TI OMAP4 keypad support"
439 depends on ARCH_OMAP4
440 help
441 Say Y here if you want to use the OMAP4 keypad.
442
443 To compile this driver as a module, choose M here: the
444 module will be called omap4-keypad.
445
427config KEYBOARD_TWL4030 446config KEYBOARD_TWL4030
428 tristate "TI TWL4030/TWL5030/TPS659x0 keypad support" 447 tristate "TI TWL4030/TWL5030/TPS659x0 keypad support"
429 depends on TWL4030_CORE 448 depends on TWL4030_CORE
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index 504b591be0cd..c13809c5c3a7 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -28,7 +28,9 @@ obj-$(CONFIG_KEYBOARD_MATRIX) += matrix_keypad.o
28obj-$(CONFIG_KEYBOARD_MAX7359) += max7359_keypad.o 28obj-$(CONFIG_KEYBOARD_MAX7359) += max7359_keypad.o
29obj-$(CONFIG_KEYBOARD_MCS) += mcs_touchkey.o 29obj-$(CONFIG_KEYBOARD_MCS) += mcs_touchkey.o
30obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o 30obj-$(CONFIG_KEYBOARD_NEWTON) += newtonkbd.o
31obj-$(CONFIG_KEYBOARD_NOMADIK) += nomadik-ske-keypad.o
31obj-$(CONFIG_KEYBOARD_OMAP) += omap-keypad.o 32obj-$(CONFIG_KEYBOARD_OMAP) += omap-keypad.o
33obj-$(CONFIG_KEYBOARD_OMAP4) += omap4-keypad.o
32obj-$(CONFIG_KEYBOARD_OPENCORES) += opencores-kbd.o 34obj-$(CONFIG_KEYBOARD_OPENCORES) += opencores-kbd.o
33obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o 35obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o
34obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o 36obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o
diff --git a/drivers/input/keyboard/adp5588-keys.c b/drivers/input/keyboard/adp5588-keys.c
index d6918cb966c0..b92d1cd5cba1 100644
--- a/drivers/input/keyboard/adp5588-keys.c
+++ b/drivers/input/keyboard/adp5588-keys.c
@@ -660,7 +660,7 @@ static const struct dev_pm_ops adp5588_dev_pm_ops = {
660#endif 660#endif
661 661
662static const struct i2c_device_id adp5588_id[] = { 662static const struct i2c_device_id adp5588_id[] = {
663 { KBUILD_MODNAME, 0 }, 663 { "adp5588-keys", 0 },
664 { "adp5587-keys", 0 }, 664 { "adp5587-keys", 0 },
665 { } 665 { }
666}; 666};
diff --git a/drivers/input/keyboard/hil_kbd.c b/drivers/input/keyboard/hil_kbd.c
index 19fa94af207a..fed31e0947a1 100644
--- a/drivers/input/keyboard/hil_kbd.c
+++ b/drivers/input/keyboard/hil_kbd.c
@@ -570,6 +570,8 @@ static struct serio_device_id hil_dev_ids[] = {
570 { 0 } 570 { 0 }
571}; 571};
572 572
573MODULE_DEVICE_TABLE(serio, hil_dev_ids);
574
573static struct serio_driver hil_serio_drv = { 575static struct serio_driver hil_serio_drv = {
574 .driver = { 576 .driver = {
575 .name = "hil_dev", 577 .name = "hil_dev",
diff --git a/drivers/input/keyboard/nomadik-ske-keypad.c b/drivers/input/keyboard/nomadik-ske-keypad.c
new file mode 100644
index 000000000000..6e0f23091360
--- /dev/null
+++ b/drivers/input/keyboard/nomadik-ske-keypad.c
@@ -0,0 +1,408 @@
1/*
2 * Copyright (C) ST-Ericsson SA 2010
3 *
4 * Author: Naveen Kumar G <naveen.gaddipati@stericsson.com> for ST-Ericsson
5 * Author: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
6 *
7 * License terms:GNU General Public License (GPL) version 2
8 *
9 * Keypad controller driver for the SKE (Scroll Key Encoder) module used in
10 * the Nomadik 8815 and Ux500 platforms.
11 */
12
13#include <linux/platform_device.h>
14#include <linux/interrupt.h>
15#include <linux/spinlock.h>
16#include <linux/io.h>
17#include <linux/delay.h>
18#include <linux/input.h>
19#include <linux/slab.h>
20#include <linux/clk.h>
21
22#include <plat/ske.h>
23
24/* SKE_CR bits */
25#define SKE_KPMLT (0x1 << 6)
26#define SKE_KPCN (0x7 << 3)
27#define SKE_KPASEN (0x1 << 2)
28#define SKE_KPASON (0x1 << 7)
29
30/* SKE_IMSC bits */
31#define SKE_KPIMA (0x1 << 2)
32
33/* SKE_ICR bits */
34#define SKE_KPICS (0x1 << 3)
35#define SKE_KPICA (0x1 << 2)
36
37/* SKE_RIS bits */
38#define SKE_KPRISA (0x1 << 2)
39
40#define SKE_KEYPAD_ROW_SHIFT 3
41#define SKE_KPD_KEYMAP_SIZE (8 * 8)
42
43/* keypad auto scan registers */
44#define SKE_ASR0 0x20
45#define SKE_ASR1 0x24
46#define SKE_ASR2 0x28
47#define SKE_ASR3 0x2C
48
49#define SKE_NUM_ASRX_REGISTERS (4)
50
51/**
52 * struct ske_keypad - data structure used by keypad driver
53 * @irq: irq no
54 * @reg_base: ske regsiters base address
55 * @input: pointer to input device object
56 * @board: keypad platform device
57 * @keymap: matrix scan code table for keycodes
58 * @clk: clock structure pointer
59 */
60struct ske_keypad {
61 int irq;
62 void __iomem *reg_base;
63 struct input_dev *input;
64 const struct ske_keypad_platform_data *board;
65 unsigned short keymap[SKE_KPD_KEYMAP_SIZE];
66 struct clk *clk;
67 spinlock_t ske_keypad_lock;
68};
69
70static void ske_keypad_set_bits(struct ske_keypad *keypad, u16 addr,
71 u8 mask, u8 data)
72{
73 u32 ret;
74
75 spin_lock(&keypad->ske_keypad_lock);
76
77 ret = readl(keypad->reg_base + addr);
78 ret &= ~mask;
79 ret |= data;
80 writel(ret, keypad->reg_base + addr);
81
82 spin_unlock(&keypad->ske_keypad_lock);
83}
84
85/*
86 * ske_keypad_chip_init: init keypad controller configuration
87 *
88 * Enable Multi key press detection, auto scan mode
89 */
90static int __devinit ske_keypad_chip_init(struct ske_keypad *keypad)
91{
92 u32 value;
93 int timeout = 50;
94
95 /* check SKE_RIS to be 0 */
96 while ((readl(keypad->reg_base + SKE_RIS) != 0x00000000) && timeout--)
97 cpu_relax();
98
99 if (!timeout)
100 return -EINVAL;
101
102 /*
103 * set debounce value
104 * keypad dbounce is configured in DBCR[15:8]
105 * dbounce value in steps of 32/32.768 ms
106 */
107 spin_lock(&keypad->ske_keypad_lock);
108 value = readl(keypad->reg_base + SKE_DBCR);
109 value = value & 0xff;
110 value |= ((keypad->board->debounce_ms * 32000)/32768) << 8;
111 writel(value, keypad->reg_base + SKE_DBCR);
112 spin_unlock(&keypad->ske_keypad_lock);
113
114 /* enable multi key detection */
115 ske_keypad_set_bits(keypad, SKE_CR, 0x0, SKE_KPMLT);
116
117 /*
118 * set up the number of columns
119 * KPCN[5:3] defines no. of keypad columns to be auto scanned
120 */
121 value = (keypad->board->kcol - 1) << 3;
122 ske_keypad_set_bits(keypad, SKE_CR, SKE_KPCN, value);
123
124 /* clear keypad interrupt for auto(and pending SW) scans */
125 ske_keypad_set_bits(keypad, SKE_ICR, 0x0, SKE_KPICA | SKE_KPICS);
126
127 /* un-mask keypad interrupts */
128 ske_keypad_set_bits(keypad, SKE_IMSC, 0x0, SKE_KPIMA);
129
130 /* enable automatic scan */
131 ske_keypad_set_bits(keypad, SKE_CR, 0x0, SKE_KPASEN);
132
133 return 0;
134}
135
136static void ske_keypad_read_data(struct ske_keypad *keypad)
137{
138 struct input_dev *input = keypad->input;
139 u16 status;
140 int col = 0, row = 0, code;
141 int ske_asr, ske_ris, key_pressed, i;
142
143 /*
144 * Read the auto scan registers
145 *
146 * Each SKE_ASRx (x=0 to x=3) contains two row values.
147 * lower byte contains row value for column 2*x,
148 * upper byte contains row value for column 2*x + 1
149 */
150 for (i = 0; i < SKE_NUM_ASRX_REGISTERS; i++) {
151 ske_asr = readl(keypad->reg_base + SKE_ASR0 + (4 * i));
152 if (!ske_asr)
153 continue;
154
155 /* now that ASRx is zero, find out the column x and row y*/
156 if (ske_asr & 0xff) {
157 col = i * 2;
158 status = ske_asr & 0xff;
159 } else {
160 col = (i * 2) + 1;
161 status = (ske_asr & 0xff00) >> 8;
162 }
163
164 /* find out the row */
165 row = __ffs(status);
166
167 code = MATRIX_SCAN_CODE(row, col, SKE_KEYPAD_ROW_SHIFT);
168 ske_ris = readl(keypad->reg_base + SKE_RIS);
169 key_pressed = ske_ris & SKE_KPRISA;
170
171 input_event(input, EV_MSC, MSC_SCAN, code);
172 input_report_key(input, keypad->keymap[code], key_pressed);
173 input_sync(input);
174 }
175}
176
177static irqreturn_t ske_keypad_irq(int irq, void *dev_id)
178{
179 struct ske_keypad *keypad = dev_id;
180 int retries = 20;
181
182 /* disable auto scan interrupt; mask the interrupt generated */
183 ske_keypad_set_bits(keypad, SKE_IMSC, ~SKE_KPIMA, 0x0);
184 ske_keypad_set_bits(keypad, SKE_ICR, 0x0, SKE_KPICA);
185
186 while ((readl(keypad->reg_base + SKE_CR) & SKE_KPASON) && --retries)
187 msleep(5);
188
189 if (retries) {
190 /* SKEx registers are stable and can be read */
191 ske_keypad_read_data(keypad);
192 }
193
194 /* enable auto scan interrupts */
195 ske_keypad_set_bits(keypad, SKE_IMSC, 0x0, SKE_KPIMA);
196
197 return IRQ_HANDLED;
198}
199
200static int __devinit ske_keypad_probe(struct platform_device *pdev)
201{
202 const struct ske_keypad_platform_data *plat = pdev->dev.platform_data;
203 struct ske_keypad *keypad;
204 struct input_dev *input;
205 struct resource *res;
206 int irq;
207 int error;
208
209 if (!plat) {
210 dev_err(&pdev->dev, "invalid keypad platform data\n");
211 return -EINVAL;
212 }
213
214 irq = platform_get_irq(pdev, 0);
215 if (irq < 0) {
216 dev_err(&pdev->dev, "failed to get keypad irq\n");
217 return -EINVAL;
218 }
219
220 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
221 if (!res) {
222 dev_err(&pdev->dev, "missing platform resources\n");
223 return -EINVAL;
224 }
225
226 keypad = kzalloc(sizeof(struct ske_keypad), GFP_KERNEL);
227 input = input_allocate_device();
228 if (!keypad || !input) {
229 dev_err(&pdev->dev, "failed to allocate keypad memory\n");
230 error = -ENOMEM;
231 goto err_free_mem;
232 }
233
234 keypad->irq = irq;
235 keypad->board = plat;
236 keypad->input = input;
237 spin_lock_init(&keypad->ske_keypad_lock);
238
239 if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
240 dev_err(&pdev->dev, "failed to request I/O memory\n");
241 error = -EBUSY;
242 goto err_free_mem;
243 }
244
245 keypad->reg_base = ioremap(res->start, resource_size(res));
246 if (!keypad->reg_base) {
247 dev_err(&pdev->dev, "failed to remap I/O memory\n");
248 error = -ENXIO;
249 goto err_free_mem_region;
250 }
251
252 keypad->clk = clk_get(&pdev->dev, NULL);
253 if (IS_ERR(keypad->clk)) {
254 dev_err(&pdev->dev, "failed to get clk\n");
255 error = PTR_ERR(keypad->clk);
256 goto err_iounmap;
257 }
258
259 input->id.bustype = BUS_HOST;
260 input->name = "ux500-ske-keypad";
261 input->dev.parent = &pdev->dev;
262
263 input->keycode = keypad->keymap;
264 input->keycodesize = sizeof(keypad->keymap[0]);
265 input->keycodemax = ARRAY_SIZE(keypad->keymap);
266
267 input_set_capability(input, EV_MSC, MSC_SCAN);
268
269 __set_bit(EV_KEY, input->evbit);
270 if (!plat->no_autorepeat)
271 __set_bit(EV_REP, input->evbit);
272
273 matrix_keypad_build_keymap(plat->keymap_data, SKE_KEYPAD_ROW_SHIFT,
274 input->keycode, input->keybit);
275
276 clk_enable(keypad->clk);
277
278 /* go through board initialization helpers */
279 if (keypad->board->init)
280 keypad->board->init();
281
282 error = ske_keypad_chip_init(keypad);
283 if (error) {
284 dev_err(&pdev->dev, "unable to init keypad hardware\n");
285 goto err_clk_disable;
286 }
287
288 error = request_threaded_irq(keypad->irq, NULL, ske_keypad_irq,
289 IRQF_ONESHOT, "ske-keypad", keypad);
290 if (error) {
291 dev_err(&pdev->dev, "allocate irq %d failed\n", keypad->irq);
292 goto err_clk_disable;
293 }
294
295 error = input_register_device(input);
296 if (error) {
297 dev_err(&pdev->dev,
298 "unable to register input device: %d\n", error);
299 goto err_free_irq;
300 }
301
302 if (plat->wakeup_enable)
303 device_init_wakeup(&pdev->dev, true);
304
305 platform_set_drvdata(pdev, keypad);
306
307 return 0;
308
309err_free_irq:
310 free_irq(keypad->irq, keypad);
311err_clk_disable:
312 clk_disable(keypad->clk);
313 clk_put(keypad->clk);
314err_iounmap:
315 iounmap(keypad->reg_base);
316err_free_mem_region:
317 release_mem_region(res->start, resource_size(res));
318err_free_mem:
319 input_free_device(input);
320 kfree(keypad);
321 return error;
322}
323
324static int __devexit ske_keypad_remove(struct platform_device *pdev)
325{
326 struct ske_keypad *keypad = platform_get_drvdata(pdev);
327 struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
328
329 free_irq(keypad->irq, keypad);
330
331 input_unregister_device(keypad->input);
332
333 clk_disable(keypad->clk);
334 clk_put(keypad->clk);
335
336 if (keypad->board->exit)
337 keypad->board->exit();
338
339 iounmap(keypad->reg_base);
340 release_mem_region(res->start, resource_size(res));
341 kfree(keypad);
342
343 return 0;
344}
345
346#ifdef CONFIG_PM
347static int ske_keypad_suspend(struct device *dev)
348{
349 struct platform_device *pdev = to_platform_device(dev);
350 struct ske_keypad *keypad = platform_get_drvdata(pdev);
351 int irq = platform_get_irq(pdev, 0);
352
353 if (device_may_wakeup(dev))
354 enable_irq_wake(irq);
355 else
356 ske_keypad_set_bits(keypad, SKE_IMSC, ~SKE_KPIMA, 0x0);
357
358 return 0;
359}
360
361static int ske_keypad_resume(struct device *dev)
362{
363 struct platform_device *pdev = to_platform_device(dev);
364 struct ske_keypad *keypad = platform_get_drvdata(pdev);
365 int irq = platform_get_irq(pdev, 0);
366
367 if (device_may_wakeup(dev))
368 disable_irq_wake(irq);
369 else
370 ske_keypad_set_bits(keypad, SKE_IMSC, 0x0, SKE_KPIMA);
371
372 return 0;
373}
374
375static const struct dev_pm_ops ske_keypad_dev_pm_ops = {
376 .suspend = ske_keypad_suspend,
377 .resume = ske_keypad_resume,
378};
379#endif
380
381struct platform_driver ske_keypad_driver = {
382 .driver = {
383 .name = "nmk-ske-keypad",
384 .owner = THIS_MODULE,
385#ifdef CONFIG_PM
386 .pm = &ske_keypad_dev_pm_ops,
387#endif
388 },
389 .probe = ske_keypad_probe,
390 .remove = __devexit_p(ske_keypad_remove),
391};
392
393static int __init ske_keypad_init(void)
394{
395 return platform_driver_probe(&ske_keypad_driver, ske_keypad_probe);
396}
397module_init(ske_keypad_init);
398
399static void __exit ske_keypad_exit(void)
400{
401 platform_driver_unregister(&ske_keypad_driver);
402}
403module_exit(ske_keypad_exit);
404
405MODULE_LICENSE("GPL v2");
406MODULE_AUTHOR("Naveen Kumar <naveen.gaddipati@stericsson.com> / Sundar Iyer <sundar.iyer@stericsson.com>");
407MODULE_DESCRIPTION("Nomadik Scroll-Key-Encoder Keypad Driver");
408MODULE_ALIAS("platform:nomadik-ske-keypad");
diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c
new file mode 100644
index 000000000000..45bd0977d006
--- /dev/null
+++ b/drivers/input/keyboard/omap4-keypad.c
@@ -0,0 +1,318 @@
1/*
2 * OMAP4 Keypad Driver
3 *
4 * Copyright (C) 2010 Texas Instruments
5 *
6 * Author: Abraham Arce <x0066660@ti.com>
7 * Initial Code: Syed Rafiuddin <rafiuddin.syed@ti.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 */
23
24#include <linux/module.h>
25#include <linux/init.h>
26#include <linux/interrupt.h>
27#include <linux/platform_device.h>
28#include <linux/errno.h>
29#include <linux/io.h>
30#include <linux/input.h>
31#include <linux/slab.h>
32
33#include <plat/omap4-keypad.h>
34
35/* OMAP4 registers */
36#define OMAP4_KBD_REVISION 0x00
37#define OMAP4_KBD_SYSCONFIG 0x10
38#define OMAP4_KBD_SYSSTATUS 0x14
39#define OMAP4_KBD_IRQSTATUS 0x18
40#define OMAP4_KBD_IRQENABLE 0x1C
41#define OMAP4_KBD_WAKEUPENABLE 0x20
42#define OMAP4_KBD_PENDING 0x24
43#define OMAP4_KBD_CTRL 0x28
44#define OMAP4_KBD_DEBOUNCINGTIME 0x2C
45#define OMAP4_KBD_LONGKEYTIME 0x30
46#define OMAP4_KBD_TIMEOUT 0x34
47#define OMAP4_KBD_STATEMACHINE 0x38
48#define OMAP4_KBD_ROWINPUTS 0x3C
49#define OMAP4_KBD_COLUMNOUTPUTS 0x40
50#define OMAP4_KBD_FULLCODE31_0 0x44
51#define OMAP4_KBD_FULLCODE63_32 0x48
52
53/* OMAP4 bit definitions */
54#define OMAP4_DEF_IRQENABLE_EVENTEN (1 << 0)
55#define OMAP4_DEF_IRQENABLE_LONGKEY (1 << 1)
56#define OMAP4_DEF_IRQENABLE_TIMEOUTEN (1 << 2)
57#define OMAP4_DEF_WUP_EVENT_ENA (1 << 0)
58#define OMAP4_DEF_WUP_LONG_KEY_ENA (1 << 1)
59#define OMAP4_DEF_CTRL_NOSOFTMODE (1 << 1)
60#define OMAP4_DEF_CTRLPTVVALUE (1 << 2)
61#define OMAP4_DEF_CTRLPTV (1 << 1)
62
63/* OMAP4 values */
64#define OMAP4_VAL_IRQDISABLE 0x00
65#define OMAP4_VAL_DEBOUNCINGTIME 0x07
66#define OMAP4_VAL_FUNCTIONALCFG 0x1E
67
68#define OMAP4_MASK_IRQSTATUSDISABLE 0xFFFF
69
70struct omap4_keypad {
71 struct input_dev *input;
72
73 void __iomem *base;
74 int irq;
75
76 unsigned int rows;
77 unsigned int cols;
78 unsigned int row_shift;
79 unsigned char key_state[8];
80 unsigned short keymap[];
81};
82
83static void __devinit omap4_keypad_config(struct omap4_keypad *keypad_data)
84{
85 __raw_writel(OMAP4_VAL_FUNCTIONALCFG,
86 keypad_data->base + OMAP4_KBD_CTRL);
87 __raw_writel(OMAP4_VAL_DEBOUNCINGTIME,
88 keypad_data->base + OMAP4_KBD_DEBOUNCINGTIME);
89 __raw_writel(OMAP4_VAL_IRQDISABLE,
90 keypad_data->base + OMAP4_KBD_IRQSTATUS);
91 __raw_writel(OMAP4_DEF_IRQENABLE_EVENTEN | OMAP4_DEF_IRQENABLE_LONGKEY,
92 keypad_data->base + OMAP4_KBD_IRQENABLE);
93 __raw_writel(OMAP4_DEF_WUP_EVENT_ENA | OMAP4_DEF_WUP_LONG_KEY_ENA,
94 keypad_data->base + OMAP4_KBD_WAKEUPENABLE);
95}
96
97/* Interrupt handler */
98static irqreturn_t omap4_keypad_interrupt(int irq, void *dev_id)
99{
100 struct omap4_keypad *keypad_data = dev_id;
101 struct input_dev *input_dev = keypad_data->input;
102 unsigned char key_state[ARRAY_SIZE(keypad_data->key_state)];
103 unsigned int col, row, code, changed;
104 u32 *new_state = (u32 *) key_state;
105
106 /* Disable interrupts */
107 __raw_writel(OMAP4_VAL_IRQDISABLE,
108 keypad_data->base + OMAP4_KBD_IRQENABLE);
109
110 *new_state = __raw_readl(keypad_data->base + OMAP4_KBD_FULLCODE31_0);
111 *(new_state + 1) = __raw_readl(keypad_data->base
112 + OMAP4_KBD_FULLCODE63_32);
113
114 for (row = 0; row < keypad_data->rows; row++) {
115 changed = key_state[row] ^ keypad_data->key_state[row];
116 if (!changed)
117 continue;
118
119 for (col = 0; col < keypad_data->cols; col++) {
120 if (changed & (1 << col)) {
121 code = MATRIX_SCAN_CODE(row, col,
122 keypad_data->row_shift);
123 input_event(input_dev, EV_MSC, MSC_SCAN, code);
124 input_report_key(input_dev,
125 keypad_data->keymap[code],
126 key_state[row] & (1 << col));
127 }
128 }
129 }
130
131 input_sync(input_dev);
132
133 memcpy(keypad_data->key_state, key_state,
134 sizeof(keypad_data->key_state));
135
136 /* clear pending interrupts */
137 __raw_writel(__raw_readl(keypad_data->base + OMAP4_KBD_IRQSTATUS),
138 keypad_data->base + OMAP4_KBD_IRQSTATUS);
139
140 /* enable interrupts */
141 __raw_writel(OMAP4_DEF_IRQENABLE_EVENTEN | OMAP4_DEF_IRQENABLE_LONGKEY,
142 keypad_data->base + OMAP4_KBD_IRQENABLE);
143
144 return IRQ_HANDLED;
145}
146
147static int __devinit omap4_keypad_probe(struct platform_device *pdev)
148{
149 const struct omap4_keypad_platform_data *pdata;
150 struct omap4_keypad *keypad_data;
151 struct input_dev *input_dev;
152 struct resource *res;
153 resource_size_t size;
154 unsigned int row_shift, max_keys;
155 int irq;
156 int error;
157
158 /* platform data */
159 pdata = pdev->dev.platform_data;
160 if (!pdata) {
161 dev_err(&pdev->dev, "no platform data defined\n");
162 return -EINVAL;
163 }
164
165 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
166 if (!res) {
167 dev_err(&pdev->dev, "no base address specified\n");
168 return -EINVAL;
169 }
170
171 irq = platform_get_irq(pdev, 0);
172 if (!irq) {
173 dev_err(&pdev->dev, "no keyboard irq assigned\n");
174 return -EINVAL;
175 }
176
177 if (!pdata->keymap_data) {
178 dev_err(&pdev->dev, "no keymap data defined\n");
179 return -EINVAL;
180 }
181
182 row_shift = get_count_order(pdata->cols);
183 max_keys = pdata->rows << row_shift;
184
185 keypad_data = kzalloc(sizeof(struct omap4_keypad) +
186 max_keys * sizeof(keypad_data->keymap[0]),
187 GFP_KERNEL);
188 if (!keypad_data) {
189 dev_err(&pdev->dev, "keypad_data memory allocation failed\n");
190 return -ENOMEM;
191 }
192
193 size = resource_size(res);
194
195 res = request_mem_region(res->start, size, pdev->name);
196 if (!res) {
197 dev_err(&pdev->dev, "can't request mem region\n");
198 error = -EBUSY;
199 goto err_free_keypad;
200 }
201
202 keypad_data->base = ioremap(res->start, resource_size(res));
203 if (!keypad_data->base) {
204 dev_err(&pdev->dev, "can't ioremap mem resource\n");
205 error = -ENOMEM;
206 goto err_release_mem;
207 }
208
209 keypad_data->irq = irq;
210 keypad_data->row_shift = row_shift;
211 keypad_data->rows = pdata->rows;
212 keypad_data->cols = pdata->cols;
213
214 /* input device allocation */
215 keypad_data->input = input_dev = input_allocate_device();
216 if (!input_dev) {
217 error = -ENOMEM;
218 goto err_unmap;
219 }
220
221 input_dev->name = pdev->name;
222 input_dev->dev.parent = &pdev->dev;
223 input_dev->id.bustype = BUS_HOST;
224 input_dev->id.vendor = 0x0001;
225 input_dev->id.product = 0x0001;
226 input_dev->id.version = 0x0001;
227
228 input_dev->keycode = keypad_data->keymap;
229 input_dev->keycodesize = sizeof(keypad_data->keymap[0]);
230 input_dev->keycodemax = max_keys;
231
232 __set_bit(EV_KEY, input_dev->evbit);
233 __set_bit(EV_REP, input_dev->evbit);
234
235 input_set_capability(input_dev, EV_MSC, MSC_SCAN);
236
237 input_set_drvdata(input_dev, keypad_data);
238
239 matrix_keypad_build_keymap(pdata->keymap_data, row_shift,
240 input_dev->keycode, input_dev->keybit);
241
242 omap4_keypad_config(keypad_data);
243
244 error = request_irq(keypad_data->irq, omap4_keypad_interrupt,
245 IRQF_TRIGGER_RISING,
246 "omap4-keypad", keypad_data);
247 if (error) {
248 dev_err(&pdev->dev, "failed to register interrupt\n");
249 goto err_free_input;
250 }
251
252 error = input_register_device(keypad_data->input);
253 if (error < 0) {
254 dev_err(&pdev->dev, "failed to register input device\n");
255 goto err_free_irq;
256 }
257
258
259 platform_set_drvdata(pdev, keypad_data);
260 return 0;
261
262err_free_irq:
263 free_irq(keypad_data->irq, keypad_data);
264err_free_input:
265 input_free_device(input_dev);
266err_unmap:
267 iounmap(keypad_data->base);
268err_release_mem:
269 release_mem_region(res->start, size);
270err_free_keypad:
271 kfree(keypad_data);
272 return error;
273}
274
275static int __devexit omap4_keypad_remove(struct platform_device *pdev)
276{
277 struct omap4_keypad *keypad_data = platform_get_drvdata(pdev);
278 struct resource *res;
279
280 free_irq(keypad_data->irq, keypad_data);
281 input_unregister_device(keypad_data->input);
282
283 iounmap(keypad_data->base);
284
285 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
286 release_mem_region(res->start, resource_size(res));
287
288 kfree(keypad_data);
289 platform_set_drvdata(pdev, NULL);
290
291 return 0;
292}
293
294static struct platform_driver omap4_keypad_driver = {
295 .probe = omap4_keypad_probe,
296 .remove = __devexit_p(omap4_keypad_remove),
297 .driver = {
298 .name = "omap4-keypad",
299 .owner = THIS_MODULE,
300 },
301};
302
303static int __init omap4_keypad_init(void)
304{
305 return platform_driver_register(&omap4_keypad_driver);
306}
307module_init(omap4_keypad_init);
308
309static void __exit omap4_keypad_exit(void)
310{
311 platform_driver_unregister(&omap4_keypad_driver);
312}
313module_exit(omap4_keypad_exit);
314
315MODULE_AUTHOR("Texas Instruments");
316MODULE_DESCRIPTION("OMAP4 Keypad Driver");
317MODULE_LICENSE("GPL");
318MODULE_ALIAS("platform:omap4-keypad");
diff --git a/drivers/input/keyboard/twl4030_keypad.c b/drivers/input/keyboard/twl4030_keypad.c
index fb16b5e5ea13..09bef79d9da1 100644
--- a/drivers/input/keyboard/twl4030_keypad.c
+++ b/drivers/input/keyboard/twl4030_keypad.c
@@ -406,23 +406,22 @@ static int __devinit twl4030_kp_probe(struct platform_device *pdev)
406 if (error) { 406 if (error) {
407 dev_info(kp->dbg_dev, "request_irq failed for irq no=%d\n", 407 dev_info(kp->dbg_dev, "request_irq failed for irq no=%d\n",
408 kp->irq); 408 kp->irq);
409 goto err3; 409 goto err2;
410 } 410 }
411 411
412 /* Enable KP and TO interrupts now. */ 412 /* Enable KP and TO interrupts now. */
413 reg = (u8) ~(KEYP_IMR1_KP | KEYP_IMR1_TO); 413 reg = (u8) ~(KEYP_IMR1_KP | KEYP_IMR1_TO);
414 if (twl4030_kpwrite_u8(kp, reg, KEYP_IMR1)) { 414 if (twl4030_kpwrite_u8(kp, reg, KEYP_IMR1)) {
415 error = -EIO; 415 error = -EIO;
416 goto err4; 416 goto err3;
417 } 417 }
418 418
419 platform_set_drvdata(pdev, kp); 419 platform_set_drvdata(pdev, kp);
420 return 0; 420 return 0;
421 421
422err4: 422err3:
423 /* mask all events - we don't care about the result */ 423 /* mask all events - we don't care about the result */
424 (void) twl4030_kpwrite_u8(kp, 0xff, KEYP_IMR1); 424 (void) twl4030_kpwrite_u8(kp, 0xff, KEYP_IMR1);
425err3:
426 free_irq(kp->irq, NULL); 425 free_irq(kp->irq, NULL);
427err2: 426err2:
428 input_unregister_device(input); 427 input_unregister_device(input);
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index b49e23379723..b99b8cbde02f 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -22,6 +22,16 @@ config INPUT_88PM860X_ONKEY
22 To compile this driver as a module, choose M here: the module 22 To compile this driver as a module, choose M here: the module
23 will be called 88pm860x_onkey. 23 will be called 88pm860x_onkey.
24 24
25config INPUT_AB8500_PONKEY
26 tristate "AB8500 Pon (PowerOn) Key"
27 depends on AB8500_CORE
28 help
29 Say Y here to use the PowerOn Key for ST-Ericsson's AB8500
30 Mix-Sig PMIC.
31
32 To compile this driver as a module, choose M here: the module
33 will be called ab8500-ponkey.
34
25config INPUT_AD714X 35config INPUT_AD714X
26 tristate "Analog Devices AD714x Capacitance Touch Sensor" 36 tristate "Analog Devices AD714x Capacitance Touch Sensor"
27 help 37 help
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index 19ccca78fa76..1fe1f6c8b737 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -5,6 +5,7 @@
5# Each configuration option enables a list of files. 5# Each configuration option enables a list of files.
6 6
7obj-$(CONFIG_INPUT_88PM860X_ONKEY) += 88pm860x_onkey.o 7obj-$(CONFIG_INPUT_88PM860X_ONKEY) += 88pm860x_onkey.o
8obj-$(CONFIG_INPUT_AB8500_PONKEY) += ab8500-ponkey.o
8obj-$(CONFIG_INPUT_AD714X) += ad714x.o 9obj-$(CONFIG_INPUT_AD714X) += ad714x.o
9obj-$(CONFIG_INPUT_AD714X_I2C) += ad714x-i2c.o 10obj-$(CONFIG_INPUT_AD714X_I2C) += ad714x-i2c.o
10obj-$(CONFIG_INPUT_AD714X_SPI) += ad714x-spi.o 11obj-$(CONFIG_INPUT_AD714X_SPI) += ad714x-spi.o
diff --git a/drivers/input/misc/ab8500-ponkey.c b/drivers/input/misc/ab8500-ponkey.c
new file mode 100644
index 000000000000..3d3288a78fdc
--- /dev/null
+++ b/drivers/input/misc/ab8500-ponkey.c
@@ -0,0 +1,157 @@
1/*
2 * Copyright (C) ST-Ericsson SA 2010
3 *
4 * License Terms: GNU General Public License v2
5 * Author: Sundar Iyer <sundar.iyer@stericsson.com> for ST-Ericsson
6 *
7 * AB8500 Power-On Key handler
8 */
9
10#include <linux/kernel.h>
11#include <linux/module.h>
12#include <linux/platform_device.h>
13#include <linux/input.h>
14#include <linux/interrupt.h>
15#include <linux/mfd/ab8500.h>
16#include <linux/slab.h>
17
18/**
19 * struct ab8500_ponkey - ab8500 ponkey information
20 * @input_dev: pointer to input device
21 * @ab8500: ab8500 parent
22 * @irq_dbf: irq number for falling transition
23 * @irq_dbr: irq number for rising transition
24 */
25struct ab8500_ponkey {
26 struct input_dev *idev;
27 struct ab8500 *ab8500;
28 int irq_dbf;
29 int irq_dbr;
30};
31
32/* AB8500 gives us an interrupt when ONKEY is held */
33static irqreturn_t ab8500_ponkey_handler(int irq, void *data)
34{
35 struct ab8500_ponkey *ponkey = data;
36
37 if (irq == ponkey->irq_dbf)
38 input_report_key(ponkey->idev, KEY_POWER, true);
39 else if (irq == ponkey->irq_dbr)
40 input_report_key(ponkey->idev, KEY_POWER, false);
41
42 input_sync(ponkey->idev);
43
44 return IRQ_HANDLED;
45}
46
47static int __devinit ab8500_ponkey_probe(struct platform_device *pdev)
48{
49 struct ab8500 *ab8500 = dev_get_drvdata(pdev->dev.parent);
50 struct ab8500_ponkey *ponkey;
51 struct input_dev *input;
52 int irq_dbf, irq_dbr;
53 int error;
54
55 irq_dbf = platform_get_irq_byname(pdev, "ONKEY_DBF");
56 if (irq_dbf < 0) {
57 dev_err(&pdev->dev, "No IRQ for ONKEY_DBF, error=%d\n", irq_dbf);
58 return irq_dbf;
59 }
60
61 irq_dbr = platform_get_irq_byname(pdev, "ONKEY_DBR");
62 if (irq_dbr < 0) {
63 dev_err(&pdev->dev, "No IRQ for ONKEY_DBR, error=%d\n", irq_dbr);
64 return irq_dbr;
65 }
66
67 ponkey = kzalloc(sizeof(struct ab8500_ponkey), GFP_KERNEL);
68 input = input_allocate_device();
69 if (!ponkey || !input) {
70 error = -ENOMEM;
71 goto err_free_mem;
72 }
73
74 ponkey->idev = input;
75 ponkey->ab8500 = ab8500;
76 ponkey->irq_dbf = irq_dbf;
77 ponkey->irq_dbr = irq_dbr;
78
79 input->name = "AB8500 POn(PowerOn) Key";
80 input->dev.parent = &pdev->dev;
81
82 input_set_capability(input, EV_KEY, KEY_POWER);
83
84 error = request_any_context_irq(ponkey->irq_dbf, ab8500_ponkey_handler,
85 0, "ab8500-ponkey-dbf", ponkey);
86 if (error < 0) {
87 dev_err(ab8500->dev, "Failed to request dbf IRQ#%d: %d\n",
88 ponkey->irq_dbf, error);
89 goto err_free_mem;
90 }
91
92 error = request_any_context_irq(ponkey->irq_dbr, ab8500_ponkey_handler,
93 0, "ab8500-ponkey-dbr", ponkey);
94 if (error < 0) {
95 dev_err(ab8500->dev, "Failed to request dbr IRQ#%d: %d\n",
96 ponkey->irq_dbr, error);
97 goto err_free_dbf_irq;
98 }
99
100 error = input_register_device(ponkey->idev);
101 if (error) {
102 dev_err(ab8500->dev, "Can't register input device: %d\n", error);
103 goto err_free_dbr_irq;
104 }
105
106 platform_set_drvdata(pdev, ponkey);
107 return 0;
108
109err_free_dbr_irq:
110 free_irq(ponkey->irq_dbr, ponkey);
111err_free_dbf_irq:
112 free_irq(ponkey->irq_dbf, ponkey);
113err_free_mem:
114 input_free_device(input);
115 kfree(ponkey);
116
117 return error;
118}
119
120static int __devexit ab8500_ponkey_remove(struct platform_device *pdev)
121{
122 struct ab8500_ponkey *ponkey = platform_get_drvdata(pdev);
123
124 free_irq(ponkey->irq_dbf, ponkey);
125 free_irq(ponkey->irq_dbr, ponkey);
126 input_unregister_device(ponkey->idev);
127 kfree(ponkey);
128
129 platform_set_drvdata(pdev, NULL);
130
131 return 0;
132}
133
134static struct platform_driver ab8500_ponkey_driver = {
135 .driver = {
136 .name = "ab8500-poweron-key",
137 .owner = THIS_MODULE,
138 },
139 .probe = ab8500_ponkey_probe,
140 .remove = __devexit_p(ab8500_ponkey_remove),
141};
142
143static int __init ab8500_ponkey_init(void)
144{
145 return platform_driver_register(&ab8500_ponkey_driver);
146}
147module_init(ab8500_ponkey_init);
148
149static void __exit ab8500_ponkey_exit(void)
150{
151 platform_driver_unregister(&ab8500_ponkey_driver);
152}
153module_exit(ab8500_ponkey_exit);
154
155MODULE_LICENSE("GPL v2");
156MODULE_AUTHOR("Sundar Iyer <sundar.iyer@stericsson.com>");
157MODULE_DESCRIPTION("ST-Ericsson AB8500 Power-ON(Pon) Key driver");
diff --git a/drivers/input/misc/ati_remote2.c b/drivers/input/misc/ati_remote2.c
index 23257652b8e8..0b0e9be63542 100644
--- a/drivers/input/misc/ati_remote2.c
+++ b/drivers/input/misc/ati_remote2.c
@@ -483,51 +483,88 @@ static void ati_remote2_complete_key(struct urb *urb)
483} 483}
484 484
485static int ati_remote2_getkeycode(struct input_dev *idev, 485static int ati_remote2_getkeycode(struct input_dev *idev,
486 unsigned int scancode, unsigned int *keycode) 486 struct input_keymap_entry *ke)
487{ 487{
488 struct ati_remote2 *ar2 = input_get_drvdata(idev); 488 struct ati_remote2 *ar2 = input_get_drvdata(idev);
489 unsigned int mode; 489 unsigned int mode;
490 int index; 490 int offset;
491 unsigned int index;
492 unsigned int scancode;
493
494 if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
495 index = ke->index;
496 if (index >= ATI_REMOTE2_MODES *
497 ARRAY_SIZE(ati_remote2_key_table))
498 return -EINVAL;
499
500 mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
501 offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
502 scancode = (mode << 8) + ati_remote2_key_table[offset].hw_code;
503 } else {
504 if (input_scancode_to_scalar(ke, &scancode))
505 return -EINVAL;
506
507 mode = scancode >> 8;
508 if (mode > ATI_REMOTE2_PC)
509 return -EINVAL;
510
511 offset = ati_remote2_lookup(scancode & 0xff);
512 if (offset < 0)
513 return -EINVAL;
514
515 index = mode * ARRAY_SIZE(ati_remote2_key_table) + offset;
516 }
491 517
492 mode = scancode >> 8; 518 ke->keycode = ar2->keycode[mode][offset];
493 if (mode > ATI_REMOTE2_PC || !((1 << mode) & ar2->mode_mask)) 519 ke->len = sizeof(scancode);
494 return -EINVAL; 520 memcpy(&ke->scancode, &scancode, sizeof(scancode));
521 ke->index = index;
495 522
496 index = ati_remote2_lookup(scancode & 0xFF);
497 if (index < 0)
498 return -EINVAL;
499
500 *keycode = ar2->keycode[mode][index];
501 return 0; 523 return 0;
502} 524}
503 525
504static int ati_remote2_setkeycode(struct input_dev *idev, 526static int ati_remote2_setkeycode(struct input_dev *idev,
505 unsigned int scancode, unsigned int keycode) 527 const struct input_keymap_entry *ke,
528 unsigned int *old_keycode)
506{ 529{
507 struct ati_remote2 *ar2 = input_get_drvdata(idev); 530 struct ati_remote2 *ar2 = input_get_drvdata(idev);
508 unsigned int mode, old_keycode; 531 unsigned int mode;
509 int index; 532 int offset;
510 533 unsigned int index;
511 mode = scancode >> 8; 534 unsigned int scancode;
512 if (mode > ATI_REMOTE2_PC || !((1 << mode) & ar2->mode_mask)) 535
513 return -EINVAL; 536 if (ke->flags & INPUT_KEYMAP_BY_INDEX) {
514 537 if (ke->index >= ATI_REMOTE2_MODES *
515 index = ati_remote2_lookup(scancode & 0xFF); 538 ARRAY_SIZE(ati_remote2_key_table))
516 if (index < 0) 539 return -EINVAL;
517 return -EINVAL; 540
541 mode = ke->index / ARRAY_SIZE(ati_remote2_key_table);
542 offset = ke->index % ARRAY_SIZE(ati_remote2_key_table);
543 } else {
544 if (input_scancode_to_scalar(ke, &scancode))
545 return -EINVAL;
546
547 mode = scancode >> 8;
548 if (mode > ATI_REMOTE2_PC)
549 return -EINVAL;
550
551 offset = ati_remote2_lookup(scancode & 0xff);
552 if (offset < 0)
553 return -EINVAL;
554 }
518 555
519 old_keycode = ar2->keycode[mode][index]; 556 *old_keycode = ar2->keycode[mode][offset];
520 ar2->keycode[mode][index] = keycode; 557 ar2->keycode[mode][offset] = ke->keycode;
521 __set_bit(keycode, idev->keybit); 558 __set_bit(ke->keycode, idev->keybit);
522 559
523 for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) { 560 for (mode = 0; mode < ATI_REMOTE2_MODES; mode++) {
524 for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) { 561 for (index = 0; index < ARRAY_SIZE(ati_remote2_key_table); index++) {
525 if (ar2->keycode[mode][index] == old_keycode) 562 if (ar2->keycode[mode][index] == *old_keycode)
526 return 0; 563 return 0;
527 } 564 }
528 } 565 }
529 566
530 __clear_bit(old_keycode, idev->keybit); 567 __clear_bit(*old_keycode, idev->keybit);
531 568
532 return 0; 569 return 0;
533} 570}
@@ -575,8 +612,8 @@ static int ati_remote2_input_init(struct ati_remote2 *ar2)
575 idev->open = ati_remote2_open; 612 idev->open = ati_remote2_open;
576 idev->close = ati_remote2_close; 613 idev->close = ati_remote2_close;
577 614
578 idev->getkeycode = ati_remote2_getkeycode; 615 idev->getkeycode_new = ati_remote2_getkeycode;
579 idev->setkeycode = ati_remote2_setkeycode; 616 idev->setkeycode_new = ati_remote2_setkeycode;
580 617
581 idev->name = ar2->name; 618 idev->name = ar2->name;
582 idev->phys = ar2->phys; 619 idev->phys = ar2->phys;
diff --git a/drivers/input/misc/powermate.c b/drivers/input/misc/powermate.c
index bf170f6b4422..f45947190e4f 100644
--- a/drivers/input/misc/powermate.c
+++ b/drivers/input/misc/powermate.c
@@ -280,7 +280,7 @@ static int powermate_alloc_buffers(struct usb_device *udev, struct powermate_dev
280 280
281 pm->configcr = kmalloc(sizeof(*(pm->configcr)), GFP_KERNEL); 281 pm->configcr = kmalloc(sizeof(*(pm->configcr)), GFP_KERNEL);
282 if (!pm->configcr) 282 if (!pm->configcr)
283 return -1; 283 return -ENOMEM;
284 284
285 return 0; 285 return 0;
286} 286}
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index 48311204ba51..04d9bf320a4f 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -699,7 +699,7 @@ int elantech_init(struct psmouse *psmouse)
699 699
700 psmouse->private = etd = kzalloc(sizeof(struct elantech_data), GFP_KERNEL); 700 psmouse->private = etd = kzalloc(sizeof(struct elantech_data), GFP_KERNEL);
701 if (!etd) 701 if (!etd)
702 return -1; 702 return -ENOMEM;
703 703
704 etd->parity[0] = 1; 704 etd->parity[0] = 1;
705 for (i = 1; i < 256; i++) 705 for (i = 1; i < 256; i++)
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 73a7af2542a8..cd9d0c97e429 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -1584,10 +1584,10 @@ static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, co
1584 if (!new_dev) 1584 if (!new_dev)
1585 return -ENOMEM; 1585 return -ENOMEM;
1586 1586
1587 while (serio->child) { 1587 while (!list_empty(&serio->children)) {
1588 if (++retry > 3) { 1588 if (++retry > 3) {
1589 printk(KERN_WARNING 1589 printk(KERN_WARNING
1590 "psmouse: failed to destroy child port, " 1590 "psmouse: failed to destroy children ports, "
1591 "protocol change aborted.\n"); 1591 "protocol change aborted.\n");
1592 input_free_device(new_dev); 1592 input_free_device(new_dev);
1593 return -EIO; 1593 return -EIO;
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 96b70a43515f..2e300a460556 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -294,7 +294,29 @@ static int synaptics_pt_write(struct serio *serio, unsigned char c)
294 return 0; 294 return 0;
295} 295}
296 296
297static inline int synaptics_is_pt_packet(unsigned char *buf) 297static int synaptics_pt_start(struct serio *serio)
298{
299 struct psmouse *parent = serio_get_drvdata(serio->parent);
300 struct synaptics_data *priv = parent->private;
301
302 serio_pause_rx(parent->ps2dev.serio);
303 priv->pt_port = serio;
304 serio_continue_rx(parent->ps2dev.serio);
305
306 return 0;
307}
308
309static void synaptics_pt_stop(struct serio *serio)
310{
311 struct psmouse *parent = serio_get_drvdata(serio->parent);
312 struct synaptics_data *priv = parent->private;
313
314 serio_pause_rx(parent->ps2dev.serio);
315 priv->pt_port = NULL;
316 serio_continue_rx(parent->ps2dev.serio);
317}
318
319static int synaptics_is_pt_packet(unsigned char *buf)
298{ 320{
299 return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; 321 return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4;
300} 322}
@@ -315,9 +337,8 @@ static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet
315 337
316static void synaptics_pt_activate(struct psmouse *psmouse) 338static void synaptics_pt_activate(struct psmouse *psmouse)
317{ 339{
318 struct serio *ptport = psmouse->ps2dev.serio->child;
319 struct psmouse *child = serio_get_drvdata(ptport);
320 struct synaptics_data *priv = psmouse->private; 340 struct synaptics_data *priv = psmouse->private;
341 struct psmouse *child = serio_get_drvdata(priv->pt_port);
321 342
322 /* adjust the touchpad to child's choice of protocol */ 343 /* adjust the touchpad to child's choice of protocol */
323 if (child) { 344 if (child) {
@@ -345,6 +366,8 @@ static void synaptics_pt_create(struct psmouse *psmouse)
345 strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); 366 strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name));
346 strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); 367 strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name));
347 serio->write = synaptics_pt_write; 368 serio->write = synaptics_pt_write;
369 serio->start = synaptics_pt_start;
370 serio->stop = synaptics_pt_stop;
348 serio->parent = psmouse->ps2dev.serio; 371 serio->parent = psmouse->ps2dev.serio;
349 372
350 psmouse->pt_activate = synaptics_pt_activate; 373 psmouse->pt_activate = synaptics_pt_activate;
@@ -578,9 +601,10 @@ static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse)
578 if (unlikely(priv->pkt_type == SYN_NEWABS)) 601 if (unlikely(priv->pkt_type == SYN_NEWABS))
579 priv->pkt_type = synaptics_detect_pkt_type(psmouse); 602 priv->pkt_type = synaptics_detect_pkt_type(psmouse);
580 603
581 if (SYN_CAP_PASS_THROUGH(priv->capabilities) && synaptics_is_pt_packet(psmouse->packet)) { 604 if (SYN_CAP_PASS_THROUGH(priv->capabilities) &&
582 if (psmouse->ps2dev.serio->child) 605 synaptics_is_pt_packet(psmouse->packet)) {
583 synaptics_pass_pt_packet(psmouse->ps2dev.serio->child, psmouse->packet); 606 if (priv->pt_port)
607 synaptics_pass_pt_packet(priv->pt_port, psmouse->packet);
584 } else 608 } else
585 synaptics_process_packet(psmouse); 609 synaptics_process_packet(psmouse);
586 610
@@ -731,7 +755,7 @@ int synaptics_init(struct psmouse *psmouse)
731 755
732 psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL); 756 psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL);
733 if (!priv) 757 if (!priv)
734 return -1; 758 return -ENOMEM;
735 759
736 psmouse_reset(psmouse); 760 psmouse_reset(psmouse);
737 761
diff --git a/drivers/input/mouse/synaptics.h b/drivers/input/mouse/synaptics.h
index b6aa7d20d8a3..613a3652f98f 100644
--- a/drivers/input/mouse/synaptics.h
+++ b/drivers/input/mouse/synaptics.h
@@ -110,6 +110,8 @@ struct synaptics_data {
110 unsigned char pkt_type; /* packet type - old, new, etc */ 110 unsigned char pkt_type; /* packet type - old, new, etc */
111 unsigned char mode; /* current mode byte */ 111 unsigned char mode; /* current mode byte */
112 int scroll; 112 int scroll;
113
114 struct serio *pt_port; /* Pass-through serio port */
113}; 115};
114 116
115void synaptics_module_init(void); 117void synaptics_module_init(void);
diff --git a/drivers/input/mouse/trackpoint.c b/drivers/input/mouse/trackpoint.c
index 0643e49ca603..54b2fa892e19 100644
--- a/drivers/input/mouse/trackpoint.c
+++ b/drivers/input/mouse/trackpoint.c
@@ -303,7 +303,7 @@ int trackpoint_detect(struct psmouse *psmouse, bool set_properties)
303 303
304 psmouse->private = kzalloc(sizeof(struct trackpoint_data), GFP_KERNEL); 304 psmouse->private = kzalloc(sizeof(struct trackpoint_data), GFP_KERNEL);
305 if (!psmouse->private) 305 if (!psmouse->private)
306 return -1; 306 return -ENOMEM;
307 307
308 psmouse->vendor = "IBM"; 308 psmouse->vendor = "IBM";
309 psmouse->name = "TrackPoint"; 309 psmouse->name = "TrackPoint";
diff --git a/drivers/input/mousedev.c b/drivers/input/mousedev.c
index 31ec7265aac6..2a00ddf4f23a 100644
--- a/drivers/input/mousedev.c
+++ b/drivers/input/mousedev.c
@@ -867,7 +867,7 @@ static struct mousedev *mousedev_create(struct input_dev *dev,
867 spin_lock_init(&mousedev->client_lock); 867 spin_lock_init(&mousedev->client_lock);
868 mutex_init(&mousedev->mutex); 868 mutex_init(&mousedev->mutex);
869 lockdep_set_subclass(&mousedev->mutex, 869 lockdep_set_subclass(&mousedev->mutex,
870 minor == MOUSEDEV_MIX ? MOUSEDEV_MIX : 0); 870 minor == MOUSEDEV_MIX ? SINGLE_DEPTH_NESTING : 0);
871 init_waitqueue_head(&mousedev->wait); 871 init_waitqueue_head(&mousedev->wait);
872 872
873 if (minor == MOUSEDEV_MIX) 873 if (minor == MOUSEDEV_MIX)
diff --git a/drivers/input/serio/Kconfig b/drivers/input/serio/Kconfig
index 3bfe8fafc6ad..6256233d2bfb 100644
--- a/drivers/input/serio/Kconfig
+++ b/drivers/input/serio/Kconfig
@@ -226,4 +226,13 @@ config SERIO_AMS_DELTA
226 To compile this driver as a module, choose M here; 226 To compile this driver as a module, choose M here;
227 the module will be called ams_delta_serio. 227 the module will be called ams_delta_serio.
228 228
229config SERIO_PS2MULT
230 tristate "TQC PS/2 multiplexer"
231 help
232 Say Y here if you have the PS/2 line multiplexer like the one
233 present on TQC boads.
234
235 To compile this driver as a module, choose M here: the
236 module will be called ps2mult.
237
229endif 238endif
diff --git a/drivers/input/serio/Makefile b/drivers/input/serio/Makefile
index 84c80bf7185e..dbbe37616c92 100644
--- a/drivers/input/serio/Makefile
+++ b/drivers/input/serio/Makefile
@@ -18,6 +18,7 @@ obj-$(CONFIG_SERIO_GSCPS2) += gscps2.o
18obj-$(CONFIG_HP_SDC) += hp_sdc.o 18obj-$(CONFIG_HP_SDC) += hp_sdc.o
19obj-$(CONFIG_HIL_MLC) += hp_sdc_mlc.o hil_mlc.o 19obj-$(CONFIG_HIL_MLC) += hp_sdc_mlc.o hil_mlc.o
20obj-$(CONFIG_SERIO_PCIPS2) += pcips2.o 20obj-$(CONFIG_SERIO_PCIPS2) += pcips2.o
21obj-$(CONFIG_SERIO_PS2MULT) += ps2mult.o
21obj-$(CONFIG_SERIO_MACEPS2) += maceps2.o 22obj-$(CONFIG_SERIO_MACEPS2) += maceps2.o
22obj-$(CONFIG_SERIO_LIBPS2) += libps2.o 23obj-$(CONFIG_SERIO_LIBPS2) += libps2.o
23obj-$(CONFIG_SERIO_RAW) += serio_raw.o 24obj-$(CONFIG_SERIO_RAW) += serio_raw.o
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index f58513160480..18db5a8c7478 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -1063,7 +1063,7 @@ static long i8042_panic_blink(int state)
1063#ifdef CONFIG_X86 1063#ifdef CONFIG_X86
1064static void i8042_dritek_enable(void) 1064static void i8042_dritek_enable(void)
1065{ 1065{
1066 char param = 0x90; 1066 unsigned char param = 0x90;
1067 int error; 1067 int error;
1068 1068
1069 error = i8042_command(&param, 0x1059); 1069 error = i8042_command(&param, 0x1059);
diff --git a/drivers/input/serio/ps2mult.c b/drivers/input/serio/ps2mult.c
new file mode 100644
index 000000000000..6bce22e4e495
--- /dev/null
+++ b/drivers/input/serio/ps2mult.c
@@ -0,0 +1,318 @@
1/*
2 * TQC PS/2 Multiplexer driver
3 *
4 * Copyright (C) 2010 Dmitry Eremin-Solenikov
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License version 2 as published by
8 * the Free Software Foundation.
9 */
10
11
12#include <linux/kernel.h>
13#include <linux/slab.h>
14#include <linux/module.h>
15#include <linux/serio.h>
16
17MODULE_AUTHOR("Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>");
18MODULE_DESCRIPTION("TQC PS/2 Multiplexer driver");
19MODULE_LICENSE("GPL");
20
21#define PS2MULT_KB_SELECTOR 0xA0
22#define PS2MULT_MS_SELECTOR 0xA1
23#define PS2MULT_ESCAPE 0x7D
24#define PS2MULT_BSYNC 0x7E
25#define PS2MULT_SESSION_START 0x55
26#define PS2MULT_SESSION_END 0x56
27
28struct ps2mult_port {
29 struct serio *serio;
30 unsigned char sel;
31 bool registered;
32};
33
34#define PS2MULT_NUM_PORTS 2
35#define PS2MULT_KBD_PORT 0
36#define PS2MULT_MOUSE_PORT 1
37
38struct ps2mult {
39 struct serio *mx_serio;
40 struct ps2mult_port ports[PS2MULT_NUM_PORTS];
41
42 spinlock_t lock;
43 struct ps2mult_port *in_port;
44 struct ps2mult_port *out_port;
45 bool escape;
46};
47
48/* First MUST come PS2MULT_NUM_PORTS selectors */
49static const unsigned char ps2mult_controls[] = {
50 PS2MULT_KB_SELECTOR, PS2MULT_MS_SELECTOR,
51 PS2MULT_ESCAPE, PS2MULT_BSYNC,
52 PS2MULT_SESSION_START, PS2MULT_SESSION_END,
53};
54
55static const struct serio_device_id ps2mult_serio_ids[] = {
56 {
57 .type = SERIO_RS232,
58 .proto = SERIO_PS2MULT,
59 .id = SERIO_ANY,
60 .extra = SERIO_ANY,
61 },
62 { 0 }
63};
64
65MODULE_DEVICE_TABLE(serio, ps2mult_serio_ids);
66
67static void ps2mult_select_port(struct ps2mult *psm, struct ps2mult_port *port)
68{
69 struct serio *mx_serio = psm->mx_serio;
70
71 serio_write(mx_serio, port->sel);
72 psm->out_port = port;
73 dev_dbg(&mx_serio->dev, "switched to sel %02x\n", port->sel);
74}
75
76static int ps2mult_serio_write(struct serio *serio, unsigned char data)
77{
78 struct serio *mx_port = serio->parent;
79 struct ps2mult *psm = serio_get_drvdata(mx_port);
80 struct ps2mult_port *port = serio->port_data;
81 bool need_escape;
82 unsigned long flags;
83
84 spin_lock_irqsave(&psm->lock, flags);
85
86 if (psm->out_port != port)
87 ps2mult_select_port(psm, port);
88
89 need_escape = memchr(ps2mult_controls, data, sizeof(ps2mult_controls));
90
91 dev_dbg(&serio->dev,
92 "write: %s%02x\n", need_escape ? "ESC " : "", data);
93
94 if (need_escape)
95 serio_write(mx_port, PS2MULT_ESCAPE);
96
97 serio_write(mx_port, data);
98
99 spin_unlock_irqrestore(&psm->lock, flags);
100
101 return 0;
102}
103
104static int ps2mult_serio_start(struct serio *serio)
105{
106 struct ps2mult *psm = serio_get_drvdata(serio->parent);
107 struct ps2mult_port *port = serio->port_data;
108 unsigned long flags;
109
110 spin_lock_irqsave(&psm->lock, flags);
111 port->registered = true;
112 spin_unlock_irqrestore(&psm->lock, flags);
113
114 return 0;
115}
116
117static void ps2mult_serio_stop(struct serio *serio)
118{
119 struct ps2mult *psm = serio_get_drvdata(serio->parent);
120 struct ps2mult_port *port = serio->port_data;
121 unsigned long flags;
122
123 spin_lock_irqsave(&psm->lock, flags);
124 port->registered = false;
125 spin_unlock_irqrestore(&psm->lock, flags);
126}
127
128static int ps2mult_create_port(struct ps2mult *psm, int i)
129{
130 struct serio *mx_serio = psm->mx_serio;
131 struct serio *serio;
132
133 serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
134 if (!serio)
135 return -ENOMEM;
136
137 strlcpy(serio->name, "TQC PS/2 Multiplexer", sizeof(serio->name));
138 snprintf(serio->phys, sizeof(serio->phys),
139 "%s/port%d", mx_serio->phys, i);
140 serio->id.type = SERIO_8042;
141 serio->write = ps2mult_serio_write;
142 serio->start = ps2mult_serio_start;
143 serio->stop = ps2mult_serio_stop;
144 serio->parent = psm->mx_serio;
145 serio->port_data = &psm->ports[i];
146
147 psm->ports[i].serio = serio;
148
149 return 0;
150}
151
152static void ps2mult_reset(struct ps2mult *psm)
153{
154 unsigned long flags;
155
156 spin_lock_irqsave(&psm->lock, flags);
157
158 serio_write(psm->mx_serio, PS2MULT_SESSION_END);
159 serio_write(psm->mx_serio, PS2MULT_SESSION_START);
160
161 ps2mult_select_port(psm, &psm->ports[PS2MULT_KBD_PORT]);
162
163 spin_unlock_irqrestore(&psm->lock, flags);
164}
165
166static int ps2mult_connect(struct serio *serio, struct serio_driver *drv)
167{
168 struct ps2mult *psm;
169 int i;
170 int error;
171
172 if (!serio->write)
173 return -EINVAL;
174
175 psm = kzalloc(sizeof(*psm), GFP_KERNEL);
176 if (!psm)
177 return -ENOMEM;
178
179 spin_lock_init(&psm->lock);
180 psm->mx_serio = serio;
181
182 for (i = 0; i < PS2MULT_NUM_PORTS; i++) {
183 psm->ports[i].sel = ps2mult_controls[i];
184 error = ps2mult_create_port(psm, i);
185 if (error)
186 goto err_out;
187 }
188
189 psm->in_port = psm->out_port = &psm->ports[PS2MULT_KBD_PORT];
190
191 serio_set_drvdata(serio, psm);
192 error = serio_open(serio, drv);
193 if (error)
194 goto err_out;
195
196 ps2mult_reset(psm);
197
198 for (i = 0; i < PS2MULT_NUM_PORTS; i++) {
199 struct serio *s = psm->ports[i].serio;
200
201 dev_info(&serio->dev, "%s port at %s\n", s->name, serio->phys);
202 serio_register_port(s);
203 }
204
205 return 0;
206
207err_out:
208 while (--i >= 0)
209 kfree(psm->ports[i].serio);
210 kfree(serio);
211 return error;
212}
213
214static void ps2mult_disconnect(struct serio *serio)
215{
216 struct ps2mult *psm = serio_get_drvdata(serio);
217
218 /* Note that serio core already take care of children ports */
219 serio_write(serio, PS2MULT_SESSION_END);
220 serio_close(serio);
221 kfree(psm);
222
223 serio_set_drvdata(serio, NULL);
224}
225
226static int ps2mult_reconnect(struct serio *serio)
227{
228 struct ps2mult *psm = serio_get_drvdata(serio);
229
230 ps2mult_reset(psm);
231
232 return 0;
233}
234
235static irqreturn_t ps2mult_interrupt(struct serio *serio,
236 unsigned char data, unsigned int dfl)
237{
238 struct ps2mult *psm = serio_get_drvdata(serio);
239 struct ps2mult_port *in_port;
240 unsigned long flags;
241
242 dev_dbg(&serio->dev, "Received %02x flags %02x\n", data, dfl);
243
244 spin_lock_irqsave(&psm->lock, flags);
245
246 if (psm->escape) {
247 psm->escape = false;
248 in_port = psm->in_port;
249 if (in_port->registered)
250 serio_interrupt(in_port->serio, data, dfl);
251 goto out;
252 }
253
254 switch (data) {
255 case PS2MULT_ESCAPE:
256 dev_dbg(&serio->dev, "ESCAPE\n");
257 psm->escape = true;
258 break;
259
260 case PS2MULT_BSYNC:
261 dev_dbg(&serio->dev, "BSYNC\n");
262 psm->in_port = psm->out_port;
263 break;
264
265 case PS2MULT_SESSION_START:
266 dev_dbg(&serio->dev, "SS\n");
267 break;
268
269 case PS2MULT_SESSION_END:
270 dev_dbg(&serio->dev, "SE\n");
271 break;
272
273 case PS2MULT_KB_SELECTOR:
274 dev_dbg(&serio->dev, "KB\n");
275 psm->in_port = &psm->ports[PS2MULT_KBD_PORT];
276 break;
277
278 case PS2MULT_MS_SELECTOR:
279 dev_dbg(&serio->dev, "MS\n");
280 psm->in_port = &psm->ports[PS2MULT_MOUSE_PORT];
281 break;
282
283 default:
284 in_port = psm->in_port;
285 if (in_port->registered)
286 serio_interrupt(in_port->serio, data, dfl);
287 break;
288 }
289
290 out:
291 spin_unlock_irqrestore(&psm->lock, flags);
292 return IRQ_HANDLED;
293}
294
295static struct serio_driver ps2mult_drv = {
296 .driver = {
297 .name = "ps2mult",
298 },
299 .description = "TQC PS/2 Multiplexer driver",
300 .id_table = ps2mult_serio_ids,
301 .interrupt = ps2mult_interrupt,
302 .connect = ps2mult_connect,
303 .disconnect = ps2mult_disconnect,
304 .reconnect = ps2mult_reconnect,
305};
306
307static int __init ps2mult_init(void)
308{
309 return serio_register_driver(&ps2mult_drv);
310}
311
312static void __exit ps2mult_exit(void)
313{
314 serio_unregister_driver(&ps2mult_drv);
315}
316
317module_init(ps2mult_init);
318module_exit(ps2mult_exit);
diff --git a/drivers/input/serio/serio.c b/drivers/input/serio/serio.c
index c3b626e9eae7..405bf214527c 100644
--- a/drivers/input/serio/serio.c
+++ b/drivers/input/serio/serio.c
@@ -37,7 +37,6 @@
37#include <linux/slab.h> 37#include <linux/slab.h>
38#include <linux/kthread.h> 38#include <linux/kthread.h>
39#include <linux/mutex.h> 39#include <linux/mutex.h>
40#include <linux/freezer.h>
41 40
42MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>"); 41MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
43MODULE_DESCRIPTION("Serio abstraction core"); 42MODULE_DESCRIPTION("Serio abstraction core");
@@ -56,7 +55,7 @@ static struct bus_type serio_bus;
56static void serio_add_port(struct serio *serio); 55static void serio_add_port(struct serio *serio);
57static int serio_reconnect_port(struct serio *serio); 56static int serio_reconnect_port(struct serio *serio);
58static void serio_disconnect_port(struct serio *serio); 57static void serio_disconnect_port(struct serio *serio);
59static void serio_reconnect_chain(struct serio *serio); 58static void serio_reconnect_subtree(struct serio *serio);
60static void serio_attach_driver(struct serio_driver *drv); 59static void serio_attach_driver(struct serio_driver *drv);
61 60
62static int serio_connect_driver(struct serio *serio, struct serio_driver *drv) 61static int serio_connect_driver(struct serio *serio, struct serio_driver *drv)
@@ -152,7 +151,7 @@ static void serio_find_driver(struct serio *serio)
152enum serio_event_type { 151enum serio_event_type {
153 SERIO_RESCAN_PORT, 152 SERIO_RESCAN_PORT,
154 SERIO_RECONNECT_PORT, 153 SERIO_RECONNECT_PORT,
155 SERIO_RECONNECT_CHAIN, 154 SERIO_RECONNECT_SUBTREE,
156 SERIO_REGISTER_PORT, 155 SERIO_REGISTER_PORT,
157 SERIO_ATTACH_DRIVER, 156 SERIO_ATTACH_DRIVER,
158}; 157};
@@ -292,8 +291,8 @@ static void serio_handle_event(void)
292 serio_find_driver(event->object); 291 serio_find_driver(event->object);
293 break; 292 break;
294 293
295 case SERIO_RECONNECT_CHAIN: 294 case SERIO_RECONNECT_SUBTREE:
296 serio_reconnect_chain(event->object); 295 serio_reconnect_subtree(event->object);
297 break; 296 break;
298 297
299 case SERIO_ATTACH_DRIVER: 298 case SERIO_ATTACH_DRIVER:
@@ -330,12 +329,10 @@ static void serio_remove_pending_events(void *object)
330} 329}
331 330
332/* 331/*
333 * Destroy child serio port (if any) that has not been fully registered yet. 332 * Locate child serio port (if any) that has not been fully registered yet.
334 * 333 *
335 * Note that we rely on the fact that port can have only one child and therefore 334 * Children are registered by driver's connect() handler so there can't be a
336 * only one child registration request can be pending. Additionally, children 335 * grandchild pending registration together with a child.
337 * are registered by driver's connect() handler so there can't be a grandchild
338 * pending registration together with a child.
339 */ 336 */
340static struct serio *serio_get_pending_child(struct serio *parent) 337static struct serio *serio_get_pending_child(struct serio *parent)
341{ 338{
@@ -449,7 +446,7 @@ static ssize_t serio_rebind_driver(struct device *dev, struct device_attribute *
449 if (!strncmp(buf, "none", count)) { 446 if (!strncmp(buf, "none", count)) {
450 serio_disconnect_port(serio); 447 serio_disconnect_port(serio);
451 } else if (!strncmp(buf, "reconnect", count)) { 448 } else if (!strncmp(buf, "reconnect", count)) {
452 serio_reconnect_chain(serio); 449 serio_reconnect_subtree(serio);
453 } else if (!strncmp(buf, "rescan", count)) { 450 } else if (!strncmp(buf, "rescan", count)) {
454 serio_disconnect_port(serio); 451 serio_disconnect_port(serio);
455 serio_find_driver(serio); 452 serio_find_driver(serio);
@@ -516,6 +513,8 @@ static void serio_init_port(struct serio *serio)
516 __module_get(THIS_MODULE); 513 __module_get(THIS_MODULE);
517 514
518 INIT_LIST_HEAD(&serio->node); 515 INIT_LIST_HEAD(&serio->node);
516 INIT_LIST_HEAD(&serio->child_node);
517 INIT_LIST_HEAD(&serio->children);
519 spin_lock_init(&serio->lock); 518 spin_lock_init(&serio->lock);
520 mutex_init(&serio->drv_mutex); 519 mutex_init(&serio->drv_mutex);
521 device_initialize(&serio->dev); 520 device_initialize(&serio->dev);
@@ -538,12 +537,13 @@ static void serio_init_port(struct serio *serio)
538 */ 537 */
539static void serio_add_port(struct serio *serio) 538static void serio_add_port(struct serio *serio)
540{ 539{
540 struct serio *parent = serio->parent;
541 int error; 541 int error;
542 542
543 if (serio->parent) { 543 if (parent) {
544 serio_pause_rx(serio->parent); 544 serio_pause_rx(parent);
545 serio->parent->child = serio; 545 list_add_tail(&serio->child_node, &parent->children);
546 serio_continue_rx(serio->parent); 546 serio_continue_rx(parent);
547 } 547 }
548 548
549 list_add_tail(&serio->node, &serio_list); 549 list_add_tail(&serio->node, &serio_list);
@@ -559,15 +559,14 @@ static void serio_add_port(struct serio *serio)
559} 559}
560 560
561/* 561/*
562 * serio_destroy_port() completes deregistration process and removes 562 * serio_destroy_port() completes unregistration process and removes
563 * port from the system 563 * port from the system
564 */ 564 */
565static void serio_destroy_port(struct serio *serio) 565static void serio_destroy_port(struct serio *serio)
566{ 566{
567 struct serio *child; 567 struct serio *child;
568 568
569 child = serio_get_pending_child(serio); 569 while ((child = serio_get_pending_child(serio)) != NULL) {
570 if (child) {
571 serio_remove_pending_events(child); 570 serio_remove_pending_events(child);
572 put_device(&child->dev); 571 put_device(&child->dev);
573 } 572 }
@@ -577,7 +576,7 @@ static void serio_destroy_port(struct serio *serio)
577 576
578 if (serio->parent) { 577 if (serio->parent) {
579 serio_pause_rx(serio->parent); 578 serio_pause_rx(serio->parent);
580 serio->parent->child = NULL; 579 list_del_init(&serio->child_node);
581 serio_continue_rx(serio->parent); 580 serio_continue_rx(serio->parent);
582 serio->parent = NULL; 581 serio->parent = NULL;
583 } 582 }
@@ -609,46 +608,82 @@ static int serio_reconnect_port(struct serio *serio)
609} 608}
610 609
611/* 610/*
612 * Reconnect serio port and all its children (re-initialize attached devices) 611 * Reconnect serio port and all its children (re-initialize attached
612 * devices).
613 */ 613 */
614static void serio_reconnect_chain(struct serio *serio) 614static void serio_reconnect_subtree(struct serio *root)
615{ 615{
616 struct serio *s = root;
617 int error;
618
616 do { 619 do {
617 if (serio_reconnect_port(serio)) { 620 error = serio_reconnect_port(s);
618 /* Ok, old children are now gone, we are done */ 621 if (!error) {
619 break; 622 /*
623 * Reconnect was successful, move on to do the
624 * first child.
625 */
626 if (!list_empty(&s->children)) {
627 s = list_first_entry(&s->children,
628 struct serio, child_node);
629 continue;
630 }
620 } 631 }
621 serio = serio->child; 632
622 } while (serio); 633 /*
634 * Either it was a leaf node or reconnect failed and it
635 * became a leaf node. Continue reconnecting starting with
636 * the next sibling of the parent node.
637 */
638 while (s != root) {
639 struct serio *parent = s->parent;
640
641 if (!list_is_last(&s->child_node, &parent->children)) {
642 s = list_entry(s->child_node.next,
643 struct serio, child_node);
644 break;
645 }
646
647 s = parent;
648 }
649 } while (s != root);
623} 650}
624 651
625/* 652/*
626 * serio_disconnect_port() unbinds a port from its driver. As a side effect 653 * serio_disconnect_port() unbinds a port from its driver. As a side effect
627 * all child ports are unbound and destroyed. 654 * all children ports are unbound and destroyed.
628 */ 655 */
629static void serio_disconnect_port(struct serio *serio) 656static void serio_disconnect_port(struct serio *serio)
630{ 657{
631 struct serio *s, *parent; 658 struct serio *s = serio;
659
660 /*
661 * Children ports should be disconnected and destroyed
662 * first; we travel the tree in depth-first order.
663 */
664 while (!list_empty(&serio->children)) {
665
666 /* Locate a leaf */
667 while (!list_empty(&s->children))
668 s = list_first_entry(&s->children,
669 struct serio, child_node);
632 670
633 if (serio->child) {
634 /* 671 /*
635 * Children ports should be disconnected and destroyed 672 * Prune this leaf node unless it is the one we
636 * first, staring with the leaf one, since we don't want 673 * started with.
637 * to do recursion
638 */ 674 */
639 for (s = serio; s->child; s = s->child) 675 if (s != serio) {
640 /* empty */; 676 struct serio *parent = s->parent;
641
642 do {
643 parent = s->parent;
644 677
645 device_release_driver(&s->dev); 678 device_release_driver(&s->dev);
646 serio_destroy_port(s); 679 serio_destroy_port(s);
647 } while ((s = parent) != serio); 680
681 s = parent;
682 }
648 } 683 }
649 684
650 /* 685 /*
651 * Ok, no children left, now disconnect this port 686 * OK, no children left, now disconnect this port.
652 */ 687 */
653 device_release_driver(&serio->dev); 688 device_release_driver(&serio->dev);
654} 689}
@@ -661,7 +696,7 @@ EXPORT_SYMBOL(serio_rescan);
661 696
662void serio_reconnect(struct serio *serio) 697void serio_reconnect(struct serio *serio)
663{ 698{
664 serio_queue_event(serio, NULL, SERIO_RECONNECT_CHAIN); 699 serio_queue_event(serio, NULL, SERIO_RECONNECT_SUBTREE);
665} 700}
666EXPORT_SYMBOL(serio_reconnect); 701EXPORT_SYMBOL(serio_reconnect);
667 702
@@ -689,14 +724,16 @@ void serio_unregister_port(struct serio *serio)
689EXPORT_SYMBOL(serio_unregister_port); 724EXPORT_SYMBOL(serio_unregister_port);
690 725
691/* 726/*
692 * Safely unregisters child port if one is present. 727 * Safely unregisters children ports if they are present.
693 */ 728 */
694void serio_unregister_child_port(struct serio *serio) 729void serio_unregister_child_port(struct serio *serio)
695{ 730{
731 struct serio *s, *next;
732
696 mutex_lock(&serio_mutex); 733 mutex_lock(&serio_mutex);
697 if (serio->child) { 734 list_for_each_entry_safe(s, next, &serio->children, child_node) {
698 serio_disconnect_port(serio->child); 735 serio_disconnect_port(s);
699 serio_destroy_port(serio->child); 736 serio_destroy_port(s);
700 } 737 }
701 mutex_unlock(&serio_mutex); 738 mutex_unlock(&serio_mutex);
702} 739}
diff --git a/drivers/input/sparse-keymap.c b/drivers/input/sparse-keymap.c
index 014248344763..a29a7812bd46 100644
--- a/drivers/input/sparse-keymap.c
+++ b/drivers/input/sparse-keymap.c
@@ -22,6 +22,37 @@ MODULE_DESCRIPTION("Generic support for sparse keymaps");
22MODULE_LICENSE("GPL v2"); 22MODULE_LICENSE("GPL v2");
23MODULE_VERSION("0.1"); 23MODULE_VERSION("0.1");
24 24
25static unsigned int sparse_keymap_get_key_index(struct input_dev *dev,
26 const struct key_entry *k)
27{
28 struct key_entry *key;
29 unsigned int idx = 0;
30
31 for (key = dev->keycode; key->type != KE_END; key++) {
32 if (key->type == KE_KEY) {
33 if (key == k)
34 break;
35 idx++;
36 }
37 }
38
39 return idx;
40}
41
42static struct key_entry *sparse_keymap_entry_by_index(struct input_dev *dev,
43 unsigned int index)
44{
45 struct key_entry *key;
46 unsigned int key_cnt = 0;
47
48 for (key = dev->keycode; key->type != KE_END; key++)
49 if (key->type == KE_KEY)
50 if (key_cnt++ == index)
51 return key;
52
53 return NULL;
54}
55
25/** 56/**
26 * sparse_keymap_entry_from_scancode - perform sparse keymap lookup 57 * sparse_keymap_entry_from_scancode - perform sparse keymap lookup
27 * @dev: Input device using sparse keymap 58 * @dev: Input device using sparse keymap
@@ -64,16 +95,36 @@ struct key_entry *sparse_keymap_entry_from_keycode(struct input_dev *dev,
64} 95}
65EXPORT_SYMBOL(sparse_keymap_entry_from_keycode); 96EXPORT_SYMBOL(sparse_keymap_entry_from_keycode);
66 97
98static struct key_entry *sparse_keymap_locate(struct input_dev *dev,
99 const struct input_keymap_entry *ke)
100{
101 struct key_entry *key;
102 unsigned int scancode;
103
104 if (ke->flags & INPUT_KEYMAP_BY_INDEX)
105 key = sparse_keymap_entry_by_index(dev, ke->index);
106 else if (input_scancode_to_scalar(ke, &scancode) == 0)
107 key = sparse_keymap_entry_from_scancode(dev, scancode);
108 else
109 key = NULL;
110
111 return key;
112}
113
67static int sparse_keymap_getkeycode(struct input_dev *dev, 114static int sparse_keymap_getkeycode(struct input_dev *dev,
68 unsigned int scancode, 115 struct input_keymap_entry *ke)
69 unsigned int *keycode)
70{ 116{
71 const struct key_entry *key; 117 const struct key_entry *key;
72 118
73 if (dev->keycode) { 119 if (dev->keycode) {
74 key = sparse_keymap_entry_from_scancode(dev, scancode); 120 key = sparse_keymap_locate(dev, ke);
75 if (key && key->type == KE_KEY) { 121 if (key && key->type == KE_KEY) {
76 *keycode = key->keycode; 122 ke->keycode = key->keycode;
123 if (!(ke->flags & INPUT_KEYMAP_BY_INDEX))
124 ke->index =
125 sparse_keymap_get_key_index(dev, key);
126 ke->len = sizeof(key->code);
127 memcpy(ke->scancode, &key->code, sizeof(key->code));
77 return 0; 128 return 0;
78 } 129 }
79 } 130 }
@@ -82,20 +133,19 @@ static int sparse_keymap_getkeycode(struct input_dev *dev,
82} 133}
83 134
84static int sparse_keymap_setkeycode(struct input_dev *dev, 135static int sparse_keymap_setkeycode(struct input_dev *dev,
85 unsigned int scancode, 136 const struct input_keymap_entry *ke,
86 unsigned int keycode) 137 unsigned int *old_keycode)
87{ 138{
88 struct key_entry *key; 139 struct key_entry *key;
89 int old_keycode;
90 140
91 if (dev->keycode) { 141 if (dev->keycode) {
92 key = sparse_keymap_entry_from_scancode(dev, scancode); 142 key = sparse_keymap_locate(dev, ke);
93 if (key && key->type == KE_KEY) { 143 if (key && key->type == KE_KEY) {
94 old_keycode = key->keycode; 144 *old_keycode = key->keycode;
95 key->keycode = keycode; 145 key->keycode = ke->keycode;
96 set_bit(keycode, dev->keybit); 146 set_bit(ke->keycode, dev->keybit);
97 if (!sparse_keymap_entry_from_keycode(dev, old_keycode)) 147 if (!sparse_keymap_entry_from_keycode(dev, *old_keycode))
98 clear_bit(old_keycode, dev->keybit); 148 clear_bit(*old_keycode, dev->keybit);
99 return 0; 149 return 0;
100 } 150 }
101 } 151 }
@@ -159,15 +209,14 @@ int sparse_keymap_setup(struct input_dev *dev,
159 209
160 dev->keycode = map; 210 dev->keycode = map;
161 dev->keycodemax = map_size; 211 dev->keycodemax = map_size;
162 dev->getkeycode = sparse_keymap_getkeycode; 212 dev->getkeycode_new = sparse_keymap_getkeycode;
163 dev->setkeycode = sparse_keymap_setkeycode; 213 dev->setkeycode_new = sparse_keymap_setkeycode;
164 214
165 return 0; 215 return 0;
166 216
167 err_out: 217 err_out:
168 kfree(map); 218 kfree(map);
169 return error; 219 return error;
170
171} 220}
172EXPORT_SYMBOL(sparse_keymap_setup); 221EXPORT_SYMBOL(sparse_keymap_setup);
173 222
diff --git a/drivers/input/tablet/Kconfig b/drivers/input/tablet/Kconfig
index effb49ea24aa..58a87755b936 100644
--- a/drivers/input/tablet/Kconfig
+++ b/drivers/input/tablet/Kconfig
@@ -49,6 +49,17 @@ config TABLET_USB_GTCO
49 To compile this driver as a module, choose M here: the 49 To compile this driver as a module, choose M here: the
50 module will be called gtco. 50 module will be called gtco.
51 51
52config TABLET_USB_HANWANG
53 tristate "Hanwang Art Master III tablet support (USB)"
54 depends on USB_ARCH_HAS_HCD
55 select USB
56 help
57 Say Y here if you want to use the USB version of the Hanwang Art
58 Master III tablet.
59
60 To compile this driver as a module, choose M here: the
61 module will be called hanwang.
62
52config TABLET_USB_KBTAB 63config TABLET_USB_KBTAB
53 tristate "KB Gear JamStudio tablet support (USB)" 64 tristate "KB Gear JamStudio tablet support (USB)"
54 depends on USB_ARCH_HAS_HCD 65 depends on USB_ARCH_HAS_HCD
diff --git a/drivers/input/tablet/Makefile b/drivers/input/tablet/Makefile
index ce8b9a9cfa40..3f6c25220638 100644
--- a/drivers/input/tablet/Makefile
+++ b/drivers/input/tablet/Makefile
@@ -8,5 +8,6 @@ wacom-objs := wacom_wac.o wacom_sys.o
8obj-$(CONFIG_TABLET_USB_ACECAD) += acecad.o 8obj-$(CONFIG_TABLET_USB_ACECAD) += acecad.o
9obj-$(CONFIG_TABLET_USB_AIPTEK) += aiptek.o 9obj-$(CONFIG_TABLET_USB_AIPTEK) += aiptek.o
10obj-$(CONFIG_TABLET_USB_GTCO) += gtco.o 10obj-$(CONFIG_TABLET_USB_GTCO) += gtco.o
11obj-$(CONFIG_TABLET_USB_HANWANG) += hanwang.o
11obj-$(CONFIG_TABLET_USB_KBTAB) += kbtab.o 12obj-$(CONFIG_TABLET_USB_KBTAB) += kbtab.o
12obj-$(CONFIG_TABLET_USB_WACOM) += wacom.o 13obj-$(CONFIG_TABLET_USB_WACOM) += wacom.o
diff --git a/drivers/input/tablet/hanwang.c b/drivers/input/tablet/hanwang.c
new file mode 100644
index 000000000000..6504b627b234
--- /dev/null
+++ b/drivers/input/tablet/hanwang.c
@@ -0,0 +1,446 @@
1/*
2 * USB Hanwang tablet support
3 *
4 * Copyright (c) 2010 Xing Wei <weixing@hanwang.com.cn>
5 *
6 */
7
8/*
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
22 *
23 */
24
25#include <linux/types.h>
26#include <linux/kernel.h>
27#include <linux/slab.h>
28#include <linux/module.h>
29#include <linux/init.h>
30#include <linux/usb/input.h>
31
32#define DRIVER_AUTHOR "Xing Wei <weixing@hanwang.com.cn>"
33#define DRIVER_DESC "USB Hanwang tablet driver"
34#define DRIVER_LICENSE "GPL"
35
36MODULE_AUTHOR(DRIVER_AUTHOR);
37MODULE_DESCRIPTION(DRIVER_DESC);
38MODULE_LICENSE(DRIVER_LICENSE);
39
40#define USB_VENDOR_ID_HANWANG 0x0b57
41#define HANWANG_TABLET_INT_CLASS 0x0003
42#define HANWANG_TABLET_INT_SUB_CLASS 0x0001
43#define HANWANG_TABLET_INT_PROTOCOL 0x0002
44
45#define ART_MASTER_PKGLEN_MAX 10
46
47/* device IDs */
48#define STYLUS_DEVICE_ID 0x02
49#define TOUCH_DEVICE_ID 0x03
50#define CURSOR_DEVICE_ID 0x06
51#define ERASER_DEVICE_ID 0x0A
52#define PAD_DEVICE_ID 0x0F
53
54/* match vendor and interface info */
55#define HANWANG_TABLET_DEVICE(vend, cl, sc, pr) \
56 .match_flags = USB_DEVICE_ID_MATCH_VENDOR \
57 | USB_DEVICE_ID_MATCH_INT_INFO, \
58 .idVendor = (vend), \
59 .bInterfaceClass = (cl), \
60 .bInterfaceSubClass = (sc), \
61 .bInterfaceProtocol = (pr)
62
63enum hanwang_tablet_type {
64 HANWANG_ART_MASTER_III,
65 HANWANG_ART_MASTER_HD,
66};
67
68struct hanwang {
69 unsigned char *data;
70 dma_addr_t data_dma;
71 struct input_dev *dev;
72 struct usb_device *usbdev;
73 struct urb *irq;
74 const struct hanwang_features *features;
75 unsigned int current_tool;
76 unsigned int current_id;
77 char name[64];
78 char phys[32];
79};
80
81struct hanwang_features {
82 unsigned short pid;
83 char *name;
84 enum hanwang_tablet_type type;
85 int pkg_len;
86 int max_x;
87 int max_y;
88 int max_tilt_x;
89 int max_tilt_y;
90 int max_pressure;
91};
92
93static const struct hanwang_features features_array[] = {
94 { 0x8528, "Hanwang Art Master III 0906", HANWANG_ART_MASTER_III,
95 ART_MASTER_PKGLEN_MAX, 0x5757, 0x3692, 0x3f, 0x7f, 2048 },
96 { 0x8529, "Hanwang Art Master III 0604", HANWANG_ART_MASTER_III,
97 ART_MASTER_PKGLEN_MAX, 0x3d84, 0x2672, 0x3f, 0x7f, 2048 },
98 { 0x852a, "Hanwang Art Master III 1308", HANWANG_ART_MASTER_III,
99 ART_MASTER_PKGLEN_MAX, 0x7f00, 0x4f60, 0x3f, 0x7f, 2048 },
100 { 0x8401, "Hanwang Art Master HD 5012", HANWANG_ART_MASTER_HD,
101 ART_MASTER_PKGLEN_MAX, 0x678e, 0x4150, 0x3f, 0x7f, 1024 },
102};
103
104static const int hw_eventtypes[] = {
105 EV_KEY, EV_ABS, EV_MSC,
106};
107
108static const int hw_absevents[] = {
109 ABS_X, ABS_Y, ABS_TILT_X, ABS_TILT_Y, ABS_WHEEL,
110 ABS_RX, ABS_RY, ABS_PRESSURE, ABS_MISC,
111};
112
113static const int hw_btnevents[] = {
114 BTN_STYLUS, BTN_STYLUS2, BTN_TOOL_PEN, BTN_TOOL_RUBBER,
115 BTN_TOOL_MOUSE, BTN_TOOL_FINGER,
116 BTN_0, BTN_1, BTN_2, BTN_3, BTN_4, BTN_5, BTN_6, BTN_7, BTN_8,
117};
118
119static const int hw_mscevents[] = {
120 MSC_SERIAL,
121};
122
123static void hanwang_parse_packet(struct hanwang *hanwang)
124{
125 unsigned char *data = hanwang->data;
126 struct input_dev *input_dev = hanwang->dev;
127 struct usb_device *dev = hanwang->usbdev;
128 enum hanwang_tablet_type type = hanwang->features->type;
129 int i;
130 u16 x, y, p;
131
132 switch (data[0]) {
133 case 0x02: /* data packet */
134 switch (data[1]) {
135 case 0x80: /* tool prox out */
136 hanwang->current_id = 0;
137 input_report_key(input_dev, hanwang->current_tool, 0);
138 break;
139
140 case 0xc2: /* first time tool prox in */
141 switch (data[3] & 0xf0) {
142 case 0x20: /* art_master III */
143 case 0x30: /* art_master_HD */
144 hanwang->current_id = STYLUS_DEVICE_ID;
145 hanwang->current_tool = BTN_TOOL_PEN;
146 input_report_key(input_dev, BTN_TOOL_PEN, 1);
147 break;
148 case 0xa0: /* art_master III */
149 case 0xb0: /* art_master_HD */
150 hanwang->current_id = ERASER_DEVICE_ID;
151 hanwang->current_tool = BTN_TOOL_RUBBER;
152 input_report_key(input_dev, BTN_TOOL_RUBBER, 1);
153 break;
154 default:
155 hanwang->current_id = 0;
156 dev_dbg(&dev->dev,
157 "unknown tablet tool %02x ", data[0]);
158 break;
159 }
160 break;
161
162 default: /* tool data packet */
163 x = (data[2] << 8) | data[3];
164 y = (data[4] << 8) | data[5];
165
166 switch (type) {
167 case HANWANG_ART_MASTER_III:
168 p = (data[6] << 3) |
169 ((data[7] & 0xc0) >> 5) |
170 (data[1] & 0x01);
171 break;
172
173 case HANWANG_ART_MASTER_HD:
174 p = (data[7] >> 6) | (data[6] << 2);
175 break;
176
177 default:
178 p = 0;
179 break;
180 }
181
182 input_report_abs(input_dev, ABS_X,
183 le16_to_cpup((__le16 *)&x));
184 input_report_abs(input_dev, ABS_Y,
185 le16_to_cpup((__le16 *)&y));
186 input_report_abs(input_dev, ABS_PRESSURE,
187 le16_to_cpup((__le16 *)&p));
188 input_report_abs(input_dev, ABS_TILT_X, data[7] & 0x3f);
189 input_report_abs(input_dev, ABS_TILT_Y, data[8] & 0x7f);
190 input_report_key(input_dev, BTN_STYLUS, data[1] & 0x02);
191 input_report_key(input_dev, BTN_STYLUS2, data[1] & 0x04);
192 break;
193 }
194 input_report_abs(input_dev, ABS_MISC, hanwang->current_id);
195 input_event(input_dev, EV_MSC, MSC_SERIAL,
196 hanwang->features->pid);
197 break;
198
199 case 0x0c:
200 /* roll wheel */
201 hanwang->current_id = PAD_DEVICE_ID;
202
203 switch (type) {
204 case HANWANG_ART_MASTER_III:
205 input_report_key(input_dev, BTN_TOOL_FINGER, data[1] ||
206 data[2] || data[3]);
207 input_report_abs(input_dev, ABS_WHEEL, data[1]);
208 input_report_key(input_dev, BTN_0, data[2]);
209 for (i = 0; i < 8; i++)
210 input_report_key(input_dev,
211 BTN_1 + i, data[3] & (1 << i));
212 break;
213
214 case HANWANG_ART_MASTER_HD:
215 input_report_key(input_dev, BTN_TOOL_FINGER, data[1] ||
216 data[2] || data[3] || data[4] ||
217 data[5] || data[6]);
218 input_report_abs(input_dev, ABS_RX,
219 ((data[1] & 0x1f) << 8) | data[2]);
220 input_report_abs(input_dev, ABS_RY,
221 ((data[3] & 0x1f) << 8) | data[4]);
222 input_report_key(input_dev, BTN_0, data[5] & 0x01);
223 for (i = 0; i < 4; i++) {
224 input_report_key(input_dev,
225 BTN_1 + i, data[5] & (1 << i));
226 input_report_key(input_dev,
227 BTN_5 + i, data[6] & (1 << i));
228 }
229 break;
230 }
231
232 input_report_abs(input_dev, ABS_MISC, hanwang->current_id);
233 input_event(input_dev, EV_MSC, MSC_SERIAL, 0xffffffff);
234 break;
235
236 default:
237 dev_dbg(&dev->dev, "error packet %02x ", data[0]);
238 break;
239 }
240
241 input_sync(input_dev);
242}
243
244static void hanwang_irq(struct urb *urb)
245{
246 struct hanwang *hanwang = urb->context;
247 struct usb_device *dev = hanwang->usbdev;
248 int retval;
249
250 switch (urb->status) {
251 case 0:
252 /* success */;
253 hanwang_parse_packet(hanwang);
254 break;
255 case -ECONNRESET:
256 case -ENOENT:
257 case -ESHUTDOWN:
258 /* this urb is terminated, clean up */
259 dev_err(&dev->dev, "%s - urb shutting down with status: %d",
260 __func__, urb->status);
261 return;
262 default:
263 dev_err(&dev->dev, "%s - nonzero urb status received: %d",
264 __func__, urb->status);
265 break;
266 }
267
268 retval = usb_submit_urb(urb, GFP_ATOMIC);
269 if (retval)
270 dev_err(&dev->dev, "%s - usb_submit_urb failed with result %d",
271 __func__, retval);
272}
273
274static int hanwang_open(struct input_dev *dev)
275{
276 struct hanwang *hanwang = input_get_drvdata(dev);
277
278 hanwang->irq->dev = hanwang->usbdev;
279 if (usb_submit_urb(hanwang->irq, GFP_KERNEL))
280 return -EIO;
281
282 return 0;
283}
284
285static void hanwang_close(struct input_dev *dev)
286{
287 struct hanwang *hanwang = input_get_drvdata(dev);
288
289 usb_kill_urb(hanwang->irq);
290}
291
292static bool get_features(struct usb_device *dev, struct hanwang *hanwang)
293{
294 int i;
295
296 for (i = 0; i < ARRAY_SIZE(features_array); i++) {
297 if (le16_to_cpu(dev->descriptor.idProduct) ==
298 features_array[i].pid) {
299 hanwang->features = &features_array[i];
300 return true;
301 }
302 }
303
304 return false;
305}
306
307
308static int hanwang_probe(struct usb_interface *intf, const struct usb_device_id *id)
309{
310 struct usb_device *dev = interface_to_usbdev(intf);
311 struct usb_endpoint_descriptor *endpoint;
312 struct hanwang *hanwang;
313 struct input_dev *input_dev;
314 int error;
315 int i;
316
317 hanwang = kzalloc(sizeof(struct hanwang), GFP_KERNEL);
318 input_dev = input_allocate_device();
319 if (!hanwang || !input_dev) {
320 error = -ENOMEM;
321 goto fail1;
322 }
323
324 if (!get_features(dev, hanwang)) {
325 error = -ENXIO;
326 goto fail1;
327 }
328
329 hanwang->data = usb_alloc_coherent(dev, hanwang->features->pkg_len,
330 GFP_KERNEL, &hanwang->data_dma);
331 if (!hanwang->data) {
332 error = -ENOMEM;
333 goto fail1;
334 }
335
336 hanwang->irq = usb_alloc_urb(0, GFP_KERNEL);
337 if (!hanwang->irq) {
338 error = -ENOMEM;
339 goto fail2;
340 }
341
342 hanwang->usbdev = dev;
343 hanwang->dev = input_dev;
344
345 usb_make_path(dev, hanwang->phys, sizeof(hanwang->phys));
346 strlcat(hanwang->phys, "/input0", sizeof(hanwang->phys));
347
348 strlcpy(hanwang->name, hanwang->features->name, sizeof(hanwang->name));
349 input_dev->name = hanwang->name;
350 input_dev->phys = hanwang->phys;
351 usb_to_input_id(dev, &input_dev->id);
352 input_dev->dev.parent = &intf->dev;
353
354 input_set_drvdata(input_dev, hanwang);
355
356 input_dev->open = hanwang_open;
357 input_dev->close = hanwang_close;
358
359 for (i = 0; i < ARRAY_SIZE(hw_eventtypes); ++i)
360 __set_bit(hw_eventtypes[i], input_dev->evbit);
361
362 for (i = 0; i < ARRAY_SIZE(hw_absevents); ++i)
363 __set_bit(hw_absevents[i], input_dev->absbit);
364
365 for (i = 0; i < ARRAY_SIZE(hw_btnevents); ++i)
366 __set_bit(hw_btnevents[i], input_dev->keybit);
367
368 for (i = 0; i < ARRAY_SIZE(hw_mscevents); ++i)
369 __set_bit(hw_mscevents[i], input_dev->mscbit);
370
371 input_set_abs_params(input_dev, ABS_X,
372 0, hanwang->features->max_x, 4, 0);
373 input_set_abs_params(input_dev, ABS_Y,
374 0, hanwang->features->max_y, 4, 0);
375 input_set_abs_params(input_dev, ABS_TILT_X,
376 0, hanwang->features->max_tilt_x, 0, 0);
377 input_set_abs_params(input_dev, ABS_TILT_Y,
378 0, hanwang->features->max_tilt_y, 0, 0);
379 input_set_abs_params(input_dev, ABS_PRESSURE,
380 0, hanwang->features->max_pressure, 0, 0);
381
382 endpoint = &intf->cur_altsetting->endpoint[0].desc;
383 usb_fill_int_urb(hanwang->irq, dev,
384 usb_rcvintpipe(dev, endpoint->bEndpointAddress),
385 hanwang->data, hanwang->features->pkg_len,
386 hanwang_irq, hanwang, endpoint->bInterval);
387 hanwang->irq->transfer_dma = hanwang->data_dma;
388 hanwang->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
389
390 error = input_register_device(hanwang->dev);
391 if (error)
392 goto fail3;
393
394 usb_set_intfdata(intf, hanwang);
395
396 return 0;
397
398 fail3: usb_free_urb(hanwang->irq);
399 fail2: usb_free_coherent(dev, hanwang->features->pkg_len,
400 hanwang->data, hanwang->data_dma);
401 fail1: input_free_device(input_dev);
402 kfree(hanwang);
403 return error;
404
405}
406
407static void hanwang_disconnect(struct usb_interface *intf)
408{
409 struct hanwang *hanwang = usb_get_intfdata(intf);
410
411 input_unregister_device(hanwang->dev);
412 usb_free_urb(hanwang->irq);
413 usb_free_coherent(interface_to_usbdev(intf),
414 hanwang->features->pkg_len, hanwang->data,
415 hanwang->data_dma);
416 kfree(hanwang);
417 usb_set_intfdata(intf, NULL);
418}
419
420static const struct usb_device_id hanwang_ids[] = {
421 { HANWANG_TABLET_DEVICE(USB_VENDOR_ID_HANWANG, HANWANG_TABLET_INT_CLASS,
422 HANWANG_TABLET_INT_SUB_CLASS, HANWANG_TABLET_INT_PROTOCOL) },
423 {}
424};
425
426MODULE_DEVICE_TABLE(usb, hanwang_ids);
427
428static struct usb_driver hanwang_driver = {
429 .name = "hanwang",
430 .probe = hanwang_probe,
431 .disconnect = hanwang_disconnect,
432 .id_table = hanwang_ids,
433};
434
435static int __init hanwang_init(void)
436{
437 return usb_register(&hanwang_driver);
438}
439
440static void __exit hanwang_exit(void)
441{
442 usb_deregister(&hanwang_driver);
443}
444
445module_init(hanwang_init);
446module_exit(hanwang_exit);
diff --git a/drivers/input/tablet/wacom.h b/drivers/input/tablet/wacom.h
index 284dfaab6b8c..de5adb109030 100644
--- a/drivers/input/tablet/wacom.h
+++ b/drivers/input/tablet/wacom.h
@@ -118,6 +118,7 @@ struct wacom {
118extern const struct usb_device_id wacom_ids[]; 118extern const struct usb_device_id wacom_ids[];
119 119
120void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len); 120void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len);
121void wacom_setup_device_quirks(struct wacom_features *features);
121void wacom_setup_input_capabilities(struct input_dev *input_dev, 122void wacom_setup_input_capabilities(struct input_dev *input_dev,
122 struct wacom_wac *wacom_wac); 123 struct wacom_wac *wacom_wac);
123#endif 124#endif
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index b35876ee6908..fc381498b798 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -120,14 +120,16 @@ static int wacom_open(struct input_dev *dev)
120 120
121out: 121out:
122 mutex_unlock(&wacom->lock); 122 mutex_unlock(&wacom->lock);
123 if (retval) 123 usb_autopm_put_interface(wacom->intf);
124 usb_autopm_put_interface(wacom->intf);
125 return retval; 124 return retval;
126} 125}
127 126
128static void wacom_close(struct input_dev *dev) 127static void wacom_close(struct input_dev *dev)
129{ 128{
130 struct wacom *wacom = input_get_drvdata(dev); 129 struct wacom *wacom = input_get_drvdata(dev);
130 int autopm_error;
131
132 autopm_error = usb_autopm_get_interface(wacom->intf);
131 133
132 mutex_lock(&wacom->lock); 134 mutex_lock(&wacom->lock);
133 usb_kill_urb(wacom->irq); 135 usb_kill_urb(wacom->irq);
@@ -135,7 +137,8 @@ static void wacom_close(struct input_dev *dev)
135 wacom->intf->needs_remote_wakeup = 0; 137 wacom->intf->needs_remote_wakeup = 0;
136 mutex_unlock(&wacom->lock); 138 mutex_unlock(&wacom->lock);
137 139
138 usb_autopm_put_interface(wacom->intf); 140 if (!autopm_error)
141 usb_autopm_put_interface(wacom->intf);
139} 142}
140 143
141static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hid_desc, 144static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hid_desc,
@@ -196,17 +199,30 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
196 features->pktlen = WACOM_PKGLEN_TPC2FG; 199 features->pktlen = WACOM_PKGLEN_TPC2FG;
197 features->device_type = BTN_TOOL_TRIPLETAP; 200 features->device_type = BTN_TOOL_TRIPLETAP;
198 } 201 }
199 features->x_max = 202 if (features->type == BAMBOO_PT) {
200 get_unaligned_le16(&report[i + 3]); 203 /* need to reset back */
201 features->x_phy = 204 features->pktlen = WACOM_PKGLEN_BBTOUCH;
202 get_unaligned_le16(&report[i + 6]); 205 features->device_type = BTN_TOOL_TRIPLETAP;
203 features->unit = report[i + 9]; 206 features->x_phy =
204 features->unitExpo = report[i + 11]; 207 get_unaligned_le16(&report[i + 5]);
205 i += 12; 208 features->x_max =
209 get_unaligned_le16(&report[i + 8]);
210 i += 15;
211 } else {
212 features->x_max =
213 get_unaligned_le16(&report[i + 3]);
214 features->x_phy =
215 get_unaligned_le16(&report[i + 6]);
216 features->unit = report[i + 9];
217 features->unitExpo = report[i + 11];
218 i += 12;
219 }
206 } else if (pen) { 220 } else if (pen) {
207 /* penabled only accepts exact bytes of data */ 221 /* penabled only accepts exact bytes of data */
208 if (features->type == TABLETPC2FG) 222 if (features->type == TABLETPC2FG)
209 features->pktlen = WACOM_PKGLEN_GRAPHIRE; 223 features->pktlen = WACOM_PKGLEN_GRAPHIRE;
224 if (features->type == BAMBOO_PT)
225 features->pktlen = WACOM_PKGLEN_BBFUN;
210 features->device_type = BTN_TOOL_PEN; 226 features->device_type = BTN_TOOL_PEN;
211 features->x_max = 227 features->x_max =
212 get_unaligned_le16(&report[i + 3]); 228 get_unaligned_le16(&report[i + 3]);
@@ -235,6 +251,15 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
235 features->y_phy = 251 features->y_phy =
236 get_unaligned_le16(&report[i + 6]); 252 get_unaligned_le16(&report[i + 6]);
237 i += 7; 253 i += 7;
254 } else if (features->type == BAMBOO_PT) {
255 /* need to reset back */
256 features->pktlen = WACOM_PKGLEN_BBTOUCH;
257 features->device_type = BTN_TOOL_TRIPLETAP;
258 features->y_phy =
259 get_unaligned_le16(&report[i + 3]);
260 features->y_max =
261 get_unaligned_le16(&report[i + 6]);
262 i += 12;
238 } else { 263 } else {
239 features->y_max = 264 features->y_max =
240 features->x_max; 265 features->x_max;
@@ -246,6 +271,8 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
246 /* penabled only accepts exact bytes of data */ 271 /* penabled only accepts exact bytes of data */
247 if (features->type == TABLETPC2FG) 272 if (features->type == TABLETPC2FG)
248 features->pktlen = WACOM_PKGLEN_GRAPHIRE; 273 features->pktlen = WACOM_PKGLEN_GRAPHIRE;
274 if (features->type == BAMBOO_PT)
275 features->pktlen = WACOM_PKGLEN_BBFUN;
249 features->device_type = BTN_TOOL_PEN; 276 features->device_type = BTN_TOOL_PEN;
250 features->y_max = 277 features->y_max =
251 get_unaligned_le16(&report[i + 3]); 278 get_unaligned_le16(&report[i + 3]);
@@ -296,8 +323,9 @@ static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_feat
296 if (!rep_data) 323 if (!rep_data)
297 return error; 324 return error;
298 325
299 /* ask to report tablet data if it is 2FGT or not a Tablet PC */ 326 /* ask to report tablet data if it is 2FGT Tablet PC or
300 if (features->device_type == BTN_TOOL_TRIPLETAP) { 327 * not a Tablet PC */
328 if (features->type == TABLETPC2FG) {
301 do { 329 do {
302 rep_data[0] = 3; 330 rep_data[0] = 3;
303 rep_data[1] = 4; 331 rep_data[1] = 4;
@@ -309,7 +337,7 @@ static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_feat
309 WAC_HID_FEATURE_REPORT, report_id, 337 WAC_HID_FEATURE_REPORT, report_id,
310 rep_data, 3); 338 rep_data, 3);
311 } while ((error < 0 || rep_data[1] != 4) && limit++ < 5); 339 } while ((error < 0 || rep_data[1] != 4) && limit++ < 5);
312 } else if (features->type != TABLETPC && features->type != TABLETPC2FG) { 340 } else if (features->type != TABLETPC) {
313 do { 341 do {
314 rep_data[0] = 2; 342 rep_data[0] = 2;
315 rep_data[1] = 2; 343 rep_data[1] = 2;
@@ -334,11 +362,16 @@ static int wacom_retrieve_hid_descriptor(struct usb_interface *intf,
334 struct usb_host_interface *interface = intf->cur_altsetting; 362 struct usb_host_interface *interface = intf->cur_altsetting;
335 struct hid_descriptor *hid_desc; 363 struct hid_descriptor *hid_desc;
336 364
337 /* default device to penabled */ 365 /* default features */
338 features->device_type = BTN_TOOL_PEN; 366 features->device_type = BTN_TOOL_PEN;
339 367 features->x_fuzz = 4;
340 /* only Tablet PCs need to retrieve the info */ 368 features->y_fuzz = 4;
341 if ((features->type != TABLETPC) && (features->type != TABLETPC2FG)) 369 features->pressure_fuzz = 0;
370 features->distance_fuzz = 0;
371
372 /* only Tablet PCs and Bamboo P&T need to retrieve the info */
373 if ((features->type != TABLETPC) && (features->type != TABLETPC2FG) &&
374 (features->type != BAMBOO_PT))
342 goto out; 375 goto out;
343 376
344 if (usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc)) { 377 if (usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc)) {
@@ -353,12 +386,6 @@ static int wacom_retrieve_hid_descriptor(struct usb_interface *intf,
353 if (error) 386 if (error)
354 goto out; 387 goto out;
355 388
356 /* touch device found but size is not defined. use default */
357 if (features->device_type == BTN_TOOL_DOUBLETAP && !features->x_max) {
358 features->x_max = 1023;
359 features->y_max = 1023;
360 }
361
362 out: 389 out:
363 return error; 390 return error;
364} 391}
@@ -494,9 +521,11 @@ static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *i
494 if (error) 521 if (error)
495 goto fail2; 522 goto fail2;
496 523
524 wacom_setup_device_quirks(features);
525
497 strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); 526 strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name));
498 527
499 if (features->type == TABLETPC || features->type == TABLETPC2FG) { 528 if (features->quirks & WACOM_QUIRK_MULTI_INPUT) {
500 /* Append the device type to the name */ 529 /* Append the device type to the name */
501 strlcat(wacom_wac->name, 530 strlcat(wacom_wac->name,
502 features->device_type == BTN_TOOL_PEN ? 531 features->device_type == BTN_TOOL_PEN ?
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 47fd7a041c52..b3252ef1e279 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -857,6 +857,134 @@ static int wacom_tpc_irq(struct wacom_wac *wacom, size_t len)
857 return retval; 857 return retval;
858} 858}
859 859
860static int wacom_bpt_touch(struct wacom_wac *wacom)
861{
862 struct wacom_features *features = &wacom->features;
863 struct input_dev *input = wacom->input;
864 unsigned char *data = wacom->data;
865 int sp = 0, sx = 0, sy = 0, count = 0;
866 int i;
867
868 for (i = 0; i < 2; i++) {
869 int p = data[9 * i + 2];
870 input_mt_slot(input, i);
871 /*
872 * Touch events need to be disabled while stylus is
873 * in proximity because user's hand is resting on touchpad
874 * and sending unwanted events. User expects tablet buttons
875 * to continue working though.
876 */
877 if (p && !wacom->shared->stylus_in_proximity) {
878 int x = get_unaligned_be16(&data[9 * i + 3]) & 0x7ff;
879 int y = get_unaligned_be16(&data[9 * i + 5]) & 0x7ff;
880 if (features->quirks & WACOM_QUIRK_BBTOUCH_LOWRES) {
881 x <<= 5;
882 y <<= 5;
883 }
884 input_report_abs(input, ABS_MT_PRESSURE, p);
885 input_report_abs(input, ABS_MT_POSITION_X, x);
886 input_report_abs(input, ABS_MT_POSITION_Y, y);
887 if (wacom->id[i] < 0)
888 wacom->id[i] = wacom->trk_id++ & MAX_TRACKING_ID;
889 if (!count++)
890 sp = p, sx = x, sy = y;
891 } else {
892 wacom->id[i] = -1;
893 }
894 input_report_abs(input, ABS_MT_TRACKING_ID, wacom->id[i]);
895 }
896
897 input_report_key(input, BTN_TOUCH, count > 0);
898 input_report_key(input, BTN_TOOL_FINGER, count == 1);
899 input_report_key(input, BTN_TOOL_DOUBLETAP, count == 2);
900
901 input_report_abs(input, ABS_PRESSURE, sp);
902 input_report_abs(input, ABS_X, sx);
903 input_report_abs(input, ABS_Y, sy);
904
905 input_report_key(input, BTN_LEFT, (data[1] & 0x08) != 0);
906 input_report_key(input, BTN_FORWARD, (data[1] & 0x04) != 0);
907 input_report_key(input, BTN_BACK, (data[1] & 0x02) != 0);
908 input_report_key(input, BTN_RIGHT, (data[1] & 0x01) != 0);
909
910 input_sync(input);
911
912 return 0;
913}
914
915static int wacom_bpt_pen(struct wacom_wac *wacom)
916{
917 struct input_dev *input = wacom->input;
918 unsigned char *data = wacom->data;
919 int prox = 0, x = 0, y = 0, p = 0, d = 0, pen = 0, btn1 = 0, btn2 = 0;
920
921 /*
922 * Similar to Graphire protocol, data[1] & 0x20 is proximity and
923 * data[1] & 0x18 is tool ID. 0x30 is safety check to ignore
924 * 2 unused tool ID's.
925 */
926 prox = (data[1] & 0x30) == 0x30;
927
928 /*
929 * All reports shared between PEN and RUBBER tool must be
930 * forced to a known starting value (zero) when transitioning to
931 * out-of-prox.
932 *
933 * If not reset then, to userspace, it will look like lost events
934 * if new tool comes in-prox with same values as previous tool sent.
935 *
936 * Hardware does report zero in most out-of-prox cases but not all.
937 */
938 if (prox) {
939 if (!wacom->shared->stylus_in_proximity) {
940 if (data[1] & 0x08) {
941 wacom->tool[0] = BTN_TOOL_RUBBER;
942 wacom->id[0] = ERASER_DEVICE_ID;
943 } else {
944 wacom->tool[0] = BTN_TOOL_PEN;
945 wacom->id[0] = STYLUS_DEVICE_ID;
946 }
947 wacom->shared->stylus_in_proximity = true;
948 }
949 x = le16_to_cpup((__le16 *)&data[2]);
950 y = le16_to_cpup((__le16 *)&data[4]);
951 p = le16_to_cpup((__le16 *)&data[6]);
952 d = data[8];
953 pen = data[1] & 0x01;
954 btn1 = data[1] & 0x02;
955 btn2 = data[1] & 0x04;
956 }
957
958 input_report_key(input, BTN_TOUCH, pen);
959 input_report_key(input, BTN_STYLUS, btn1);
960 input_report_key(input, BTN_STYLUS2, btn2);
961
962 input_report_abs(input, ABS_X, x);
963 input_report_abs(input, ABS_Y, y);
964 input_report_abs(input, ABS_PRESSURE, p);
965 input_report_abs(input, ABS_DISTANCE, d);
966
967 if (!prox) {
968 wacom->id[0] = 0;
969 wacom->shared->stylus_in_proximity = false;
970 }
971
972 input_report_key(input, wacom->tool[0], prox); /* PEN or RUBBER */
973 input_report_abs(input, ABS_MISC, wacom->id[0]); /* TOOL ID */
974
975 return 1;
976}
977
978static int wacom_bpt_irq(struct wacom_wac *wacom, size_t len)
979{
980 if (len == WACOM_PKGLEN_BBTOUCH)
981 return wacom_bpt_touch(wacom);
982 else if (len == WACOM_PKGLEN_BBFUN)
983 return wacom_bpt_pen(wacom);
984
985 return 0;
986}
987
860void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len) 988void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
861{ 989{
862 bool sync; 990 bool sync;
@@ -902,6 +1030,10 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
902 sync = wacom_tpc_irq(wacom_wac, len); 1030 sync = wacom_tpc_irq(wacom_wac, len);
903 break; 1031 break;
904 1032
1033 case BAMBOO_PT:
1034 sync = wacom_bpt_irq(wacom_wac, len);
1035 break;
1036
905 default: 1037 default:
906 sync = false; 1038 sync = false;
907 break; 1039 break;
@@ -911,26 +1043,17 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
911 input_sync(wacom_wac->input); 1043 input_sync(wacom_wac->input);
912} 1044}
913 1045
914static void wacom_setup_intuos(struct wacom_wac *wacom_wac) 1046static void wacom_setup_cintiq(struct wacom_wac *wacom_wac)
915{ 1047{
916 struct input_dev *input_dev = wacom_wac->input; 1048 struct input_dev *input_dev = wacom_wac->input;
917 1049
918 input_set_capability(input_dev, EV_MSC, MSC_SERIAL); 1050 input_set_capability(input_dev, EV_MSC, MSC_SERIAL);
919 input_set_capability(input_dev, EV_REL, REL_WHEEL);
920
921 __set_bit(BTN_LEFT, input_dev->keybit);
922 __set_bit(BTN_RIGHT, input_dev->keybit);
923 __set_bit(BTN_MIDDLE, input_dev->keybit);
924 __set_bit(BTN_SIDE, input_dev->keybit);
925 __set_bit(BTN_EXTRA, input_dev->keybit);
926 1051
927 __set_bit(BTN_TOOL_RUBBER, input_dev->keybit); 1052 __set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
928 __set_bit(BTN_TOOL_PEN, input_dev->keybit); 1053 __set_bit(BTN_TOOL_PEN, input_dev->keybit);
929 __set_bit(BTN_TOOL_MOUSE, input_dev->keybit);
930 __set_bit(BTN_TOOL_BRUSH, input_dev->keybit); 1054 __set_bit(BTN_TOOL_BRUSH, input_dev->keybit);
931 __set_bit(BTN_TOOL_PENCIL, input_dev->keybit); 1055 __set_bit(BTN_TOOL_PENCIL, input_dev->keybit);
932 __set_bit(BTN_TOOL_AIRBRUSH, input_dev->keybit); 1056 __set_bit(BTN_TOOL_AIRBRUSH, input_dev->keybit);
933 __set_bit(BTN_TOOL_LENS, input_dev->keybit);
934 __set_bit(BTN_STYLUS, input_dev->keybit); 1057 __set_bit(BTN_STYLUS, input_dev->keybit);
935 __set_bit(BTN_STYLUS2, input_dev->keybit); 1058 __set_bit(BTN_STYLUS2, input_dev->keybit);
936 1059
@@ -939,10 +1062,55 @@ static void wacom_setup_intuos(struct wacom_wac *wacom_wac)
939 input_set_abs_params(input_dev, ABS_WHEEL, 0, 1023, 0, 0); 1062 input_set_abs_params(input_dev, ABS_WHEEL, 0, 1023, 0, 0);
940 input_set_abs_params(input_dev, ABS_TILT_X, 0, 127, 0, 0); 1063 input_set_abs_params(input_dev, ABS_TILT_X, 0, 127, 0, 0);
941 input_set_abs_params(input_dev, ABS_TILT_Y, 0, 127, 0, 0); 1064 input_set_abs_params(input_dev, ABS_TILT_Y, 0, 127, 0, 0);
1065}
1066
1067static void wacom_setup_intuos(struct wacom_wac *wacom_wac)
1068{
1069 struct input_dev *input_dev = wacom_wac->input;
1070
1071 input_set_capability(input_dev, EV_REL, REL_WHEEL);
1072
1073 wacom_setup_cintiq(wacom_wac);
1074
1075 __set_bit(BTN_LEFT, input_dev->keybit);
1076 __set_bit(BTN_RIGHT, input_dev->keybit);
1077 __set_bit(BTN_MIDDLE, input_dev->keybit);
1078 __set_bit(BTN_SIDE, input_dev->keybit);
1079 __set_bit(BTN_EXTRA, input_dev->keybit);
1080 __set_bit(BTN_TOOL_MOUSE, input_dev->keybit);
1081 __set_bit(BTN_TOOL_LENS, input_dev->keybit);
1082
942 input_set_abs_params(input_dev, ABS_RZ, -900, 899, 0, 0); 1083 input_set_abs_params(input_dev, ABS_RZ, -900, 899, 0, 0);
943 input_set_abs_params(input_dev, ABS_THROTTLE, -1023, 1023, 0, 0); 1084 input_set_abs_params(input_dev, ABS_THROTTLE, -1023, 1023, 0, 0);
944} 1085}
945 1086
1087void wacom_setup_device_quirks(struct wacom_features *features)
1088{
1089
1090 /* touch device found but size is not defined. use default */
1091 if (features->device_type == BTN_TOOL_DOUBLETAP && !features->x_max) {
1092 features->x_max = 1023;
1093 features->y_max = 1023;
1094 }
1095
1096 /* these device have multiple inputs */
1097 if (features->type == TABLETPC || features->type == TABLETPC2FG ||
1098 features->type == BAMBOO_PT)
1099 features->quirks |= WACOM_QUIRK_MULTI_INPUT;
1100
1101 /* quirks for bamboo touch */
1102 if (features->type == BAMBOO_PT &&
1103 features->device_type == BTN_TOOL_TRIPLETAP) {
1104 features->x_max <<= 5;
1105 features->y_max <<= 5;
1106 features->x_fuzz <<= 5;
1107 features->y_fuzz <<= 5;
1108 features->pressure_max = 256;
1109 features->pressure_fuzz = 16;
1110 features->quirks |= WACOM_QUIRK_BBTOUCH_LOWRES;
1111 }
1112}
1113
946void wacom_setup_input_capabilities(struct input_dev *input_dev, 1114void wacom_setup_input_capabilities(struct input_dev *input_dev,
947 struct wacom_wac *wacom_wac) 1115 struct wacom_wac *wacom_wac)
948{ 1116{
@@ -953,9 +1121,12 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
953 1121
954 __set_bit(BTN_TOUCH, input_dev->keybit); 1122 __set_bit(BTN_TOUCH, input_dev->keybit);
955 1123
956 input_set_abs_params(input_dev, ABS_X, 0, features->x_max, 4, 0); 1124 input_set_abs_params(input_dev, ABS_X, 0, features->x_max,
957 input_set_abs_params(input_dev, ABS_Y, 0, features->y_max, 4, 0); 1125 features->x_fuzz, 0);
958 input_set_abs_params(input_dev, ABS_PRESSURE, 0, features->pressure_max, 0, 0); 1126 input_set_abs_params(input_dev, ABS_Y, 0, features->y_max,
1127 features->y_fuzz, 0);
1128 input_set_abs_params(input_dev, ABS_PRESSURE, 0, features->pressure_max,
1129 features->pressure_fuzz, 0);
959 1130
960 __set_bit(ABS_MISC, input_dev->absbit); 1131 __set_bit(ABS_MISC, input_dev->absbit);
961 1132
@@ -1005,9 +1176,19 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
1005 __set_bit(BTN_9, input_dev->keybit); 1176 __set_bit(BTN_9, input_dev->keybit);
1006 /* fall through */ 1177 /* fall through */
1007 1178
1179 case CINTIQ:
1180 for (i = 0; i < 8; i++)
1181 __set_bit(BTN_0 + i, input_dev->keybit);
1182 __set_bit(BTN_TOOL_FINGER, input_dev->keybit);
1183
1184 input_set_abs_params(input_dev, ABS_RX, 0, 4096, 0, 0);
1185 input_set_abs_params(input_dev, ABS_RY, 0, 4096, 0, 0);
1186 input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
1187 wacom_setup_cintiq(wacom_wac);
1188 break;
1189
1008 case INTUOS3: 1190 case INTUOS3:
1009 case INTUOS3L: 1191 case INTUOS3L:
1010 case CINTIQ:
1011 __set_bit(BTN_4, input_dev->keybit); 1192 __set_bit(BTN_4, input_dev->keybit);
1012 __set_bit(BTN_5, input_dev->keybit); 1193 __set_bit(BTN_5, input_dev->keybit);
1013 __set_bit(BTN_6, input_dev->keybit); 1194 __set_bit(BTN_6, input_dev->keybit);
@@ -1078,6 +1259,38 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
1078 case PENPARTNER: 1259 case PENPARTNER:
1079 __set_bit(BTN_TOOL_RUBBER, input_dev->keybit); 1260 __set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
1080 break; 1261 break;
1262
1263 case BAMBOO_PT:
1264 __clear_bit(ABS_MISC, input_dev->absbit);
1265
1266 if (features->device_type == BTN_TOOL_TRIPLETAP) {
1267 __set_bit(BTN_LEFT, input_dev->keybit);
1268 __set_bit(BTN_FORWARD, input_dev->keybit);
1269 __set_bit(BTN_BACK, input_dev->keybit);
1270 __set_bit(BTN_RIGHT, input_dev->keybit);
1271
1272 __set_bit(BTN_TOOL_FINGER, input_dev->keybit);
1273 __set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
1274
1275 input_mt_create_slots(input_dev, 2);
1276 input_set_abs_params(input_dev, ABS_MT_POSITION_X,
1277 0, features->x_max,
1278 features->x_fuzz, 0);
1279 input_set_abs_params(input_dev, ABS_MT_POSITION_Y,
1280 0, features->y_max,
1281 features->y_fuzz, 0);
1282 input_set_abs_params(input_dev, ABS_MT_PRESSURE,
1283 0, features->pressure_max,
1284 features->pressure_fuzz, 0);
1285 input_set_abs_params(input_dev, ABS_MT_TRACKING_ID, 0,
1286 MAX_TRACKING_ID, 0, 0);
1287 } else if (features->device_type == BTN_TOOL_PEN) {
1288 __set_bit(BTN_TOOL_RUBBER, input_dev->keybit);
1289 __set_bit(BTN_TOOL_PEN, input_dev->keybit);
1290 __set_bit(BTN_STYLUS, input_dev->keybit);
1291 __set_bit(BTN_STYLUS2, input_dev->keybit);
1292 }
1293 break;
1081 } 1294 }
1082} 1295}
1083 1296
@@ -1215,6 +1428,14 @@ static const struct wacom_features wacom_features_0xE3 =
1215 { "Wacom ISDv4 E3", WACOM_PKGLEN_TPC2FG, 26202, 16325, 255, 0, TABLETPC2FG }; 1428 { "Wacom ISDv4 E3", WACOM_PKGLEN_TPC2FG, 26202, 16325, 255, 0, TABLETPC2FG };
1216static const struct wacom_features wacom_features_0x47 = 1429static const struct wacom_features wacom_features_0x47 =
1217 { "Wacom Intuos2 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023, 31, INTUOS }; 1430 { "Wacom Intuos2 6x8", WACOM_PKGLEN_INTUOS, 20320, 16240, 1023, 31, INTUOS };
1431static struct wacom_features wacom_features_0xD0 =
1432 { "Wacom Bamboo 2FG", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT };
1433static struct wacom_features wacom_features_0xD1 =
1434 { "Wacom Bamboo 2FG 4x5", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT };
1435static struct wacom_features wacom_features_0xD2 =
1436 { "Wacom Bamboo Craft", WACOM_PKGLEN_BBFUN, 14720, 9200, 1023, 63, BAMBOO_PT };
1437static struct wacom_features wacom_features_0xD3 =
1438 { "Wacom Bamboo 2FG 6x8", WACOM_PKGLEN_BBFUN, 21648, 13530, 1023, 63, BAMBOO_PT };
1218 1439
1219#define USB_DEVICE_WACOM(prod) \ 1440#define USB_DEVICE_WACOM(prod) \
1220 USB_DEVICE(USB_VENDOR_ID_WACOM, prod), \ 1441 USB_DEVICE(USB_VENDOR_ID_WACOM, prod), \
@@ -1279,6 +1500,10 @@ const struct usb_device_id wacom_ids[] = {
1279 { USB_DEVICE_WACOM(0xC6) }, 1500 { USB_DEVICE_WACOM(0xC6) },
1280 { USB_DEVICE_WACOM(0xC7) }, 1501 { USB_DEVICE_WACOM(0xC7) },
1281 { USB_DEVICE_WACOM(0xCE) }, 1502 { USB_DEVICE_WACOM(0xCE) },
1503 { USB_DEVICE_WACOM(0xD0) },
1504 { USB_DEVICE_WACOM(0xD1) },
1505 { USB_DEVICE_WACOM(0xD2) },
1506 { USB_DEVICE_WACOM(0xD3) },
1282 { USB_DEVICE_WACOM(0xF0) }, 1507 { USB_DEVICE_WACOM(0xF0) },
1283 { USB_DEVICE_WACOM(0xCC) }, 1508 { USB_DEVICE_WACOM(0xCC) },
1284 { USB_DEVICE_WACOM(0x90) }, 1509 { USB_DEVICE_WACOM(0x90) },
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 99e1a54cd305..00ca01541d89 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -21,6 +21,7 @@
21#define WACOM_PKGLEN_INTUOS 10 21#define WACOM_PKGLEN_INTUOS 10
22#define WACOM_PKGLEN_TPC1FG 5 22#define WACOM_PKGLEN_TPC1FG 5
23#define WACOM_PKGLEN_TPC2FG 14 23#define WACOM_PKGLEN_TPC2FG 14
24#define WACOM_PKGLEN_BBTOUCH 20
24 25
25/* device IDs */ 26/* device IDs */
26#define STYLUS_DEVICE_ID 0x02 27#define STYLUS_DEVICE_ID 0x02
@@ -37,6 +38,13 @@
37#define WACOM_REPORT_TPC1FG 6 38#define WACOM_REPORT_TPC1FG 6
38#define WACOM_REPORT_TPC2FG 13 39#define WACOM_REPORT_TPC2FG 13
39 40
41/* device quirks */
42#define WACOM_QUIRK_MULTI_INPUT 0x0001
43#define WACOM_QUIRK_BBTOUCH_LOWRES 0x0002
44
45/* largest reported tracking id */
46#define MAX_TRACKING_ID 0xfff
47
40enum { 48enum {
41 PENPARTNER = 0, 49 PENPARTNER = 0,
42 GRAPHIRE, 50 GRAPHIRE,
@@ -44,6 +52,7 @@ enum {
44 PTU, 52 PTU,
45 PL, 53 PL,
46 DTU, 54 DTU,
55 BAMBOO_PT,
47 INTUOS, 56 INTUOS,
48 INTUOS3S, 57 INTUOS3S,
49 INTUOS3, 58 INTUOS3,
@@ -73,6 +82,11 @@ struct wacom_features {
73 int y_phy; 82 int y_phy;
74 unsigned char unit; 83 unsigned char unit;
75 unsigned char unitExpo; 84 unsigned char unitExpo;
85 int x_fuzz;
86 int y_fuzz;
87 int pressure_fuzz;
88 int distance_fuzz;
89 unsigned quirks;
76}; 90};
77 91
78struct wacom_shared { 92struct wacom_shared {
@@ -86,6 +100,7 @@ struct wacom_wac {
86 int id[3]; 100 int id[3];
87 __u32 serial[2]; 101 __u32 serial[2];
88 int last_finger; 102 int last_finger;
103 int trk_id;
89 struct wacom_features features; 104 struct wacom_features features;
90 struct wacom_shared *shared; 105 struct wacom_shared *shared;
91 struct input_dev *input; 106 struct input_dev *input;
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 0069d9703fda..0ea361f23fa7 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -98,6 +98,18 @@ config TOUCHSCREEN_BITSY
98 To compile this driver as a module, choose M here: the 98 To compile this driver as a module, choose M here: the
99 module will be called h3600_ts_input. 99 module will be called h3600_ts_input.
100 100
101config TOUCHSCREEN_BU21013
102 tristate "BU21013 based touch panel controllers"
103 depends on I2C
104 help
105 Say Y here if you have a bu21013 touchscreen connected to
106 your system.
107
108 If unsure, say N.
109
110 To compile this driver as a module, choose M here: the
111 module will be called bu21013_ts.
112
101config TOUCHSCREEN_CY8CTMG110 113config TOUCHSCREEN_CY8CTMG110
102 tristate "cy8ctmg110 touchscreen" 114 tristate "cy8ctmg110 touchscreen"
103 depends on I2C 115 depends on I2C
@@ -214,6 +226,16 @@ config TOUCHSCREEN_WACOM_W8001
214 To compile this driver as a module, choose M here: the 226 To compile this driver as a module, choose M here: the
215 module will be called wacom_w8001. 227 module will be called wacom_w8001.
216 228
229config TOUCHSCREEN_LPC32XX
230 tristate "LPC32XX touchscreen controller"
231 depends on ARCH_LPC32XX
232 help
233 Say Y here if you have a LPC32XX device and want
234 to support the built-in touchscreen.
235
236 To compile this driver as a module, choose M here: the
237 module will be called lpc32xx_ts.
238
217config TOUCHSCREEN_MCS5000 239config TOUCHSCREEN_MCS5000
218 tristate "MELFAS MCS-5000 touchscreen" 240 tristate "MELFAS MCS-5000 touchscreen"
219 depends on I2C 241 depends on I2C
@@ -250,6 +272,18 @@ config TOUCHSCREEN_INEXIO
250 To compile this driver as a module, choose M here: the 272 To compile this driver as a module, choose M here: the
251 module will be called inexio. 273 module will be called inexio.
252 274
275config TOUCHSCREEN_INTEL_MID
276 tristate "Intel MID platform resistive touchscreen"
277 depends on INTEL_SCU_IPC
278 help
279 Say Y here if you have a Intel MID based touchscreen in
280 your system.
281
282 If unsure, say N.
283
284 To compile this driver as a module, choose M here: the
285 module will be called intel_mid_touch.
286
253config TOUCHSCREEN_MK712 287config TOUCHSCREEN_MK712
254 tristate "ICS MicroClock MK712 touchscreen" 288 tristate "ICS MicroClock MK712 touchscreen"
255 help 289 help
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index 28217e1dcafd..99b353c4e9ae 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_TOUCHSCREEN_AD7879_SPI) += ad7879-spi.o
14obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o 14obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o
15obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) += atmel_tsadcc.o 15obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) += atmel_tsadcc.o
16obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o 16obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o
17obj-$(CONFIG_TOUCHSCREEN_BU21013) += bu21013_ts.o
17obj-$(CONFIG_TOUCHSCREEN_CY8CTMG110) += cy8ctmg110_ts.o 18obj-$(CONFIG_TOUCHSCREEN_CY8CTMG110) += cy8ctmg110_ts.o
18obj-$(CONFIG_TOUCHSCREEN_DA9034) += da9034-ts.o 19obj-$(CONFIG_TOUCHSCREEN_DA9034) += da9034-ts.o
19obj-$(CONFIG_TOUCHSCREEN_DYNAPRO) += dynapro.o 20obj-$(CONFIG_TOUCHSCREEN_DYNAPRO) += dynapro.o
@@ -23,6 +24,8 @@ obj-$(CONFIG_TOUCHSCREEN_EETI) += eeti_ts.o
23obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o 24obj-$(CONFIG_TOUCHSCREEN_ELO) += elo.o
24obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o 25obj-$(CONFIG_TOUCHSCREEN_FUJITSU) += fujitsu_ts.o
25obj-$(CONFIG_TOUCHSCREEN_INEXIO) += inexio.o 26obj-$(CONFIG_TOUCHSCREEN_INEXIO) += inexio.o
27obj-$(CONFIG_TOUCHSCREEN_INTEL_MID) += intel-mid-touch.o
28obj-$(CONFIG_TOUCHSCREEN_LPC32XX) += lpc32xx_ts.o
26obj-$(CONFIG_TOUCHSCREEN_MC13783) += mc13783_ts.o 29obj-$(CONFIG_TOUCHSCREEN_MC13783) += mc13783_ts.o
27obj-$(CONFIG_TOUCHSCREEN_MCS5000) += mcs5000_ts.o 30obj-$(CONFIG_TOUCHSCREEN_MCS5000) += mcs5000_ts.o
28obj-$(CONFIG_TOUCHSCREEN_MIGOR) += migor_ts.o 31obj-$(CONFIG_TOUCHSCREEN_MIGOR) += migor_ts.o
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
index 5f0221cffef9..a1952fcc083e 100644
--- a/drivers/input/touchscreen/ad7877.c
+++ b/drivers/input/touchscreen/ad7877.c
@@ -191,13 +191,12 @@ struct ad7877 {
191 struct spi_message msg; 191 struct spi_message msg;
192 192
193 struct mutex mutex; 193 struct mutex mutex;
194 unsigned disabled:1; /* P: mutex */ 194 bool disabled; /* P: mutex */
195 unsigned gpio3:1; /* P: mutex */ 195 bool gpio3; /* P: mutex */
196 unsigned gpio4:1; /* P: mutex */ 196 bool gpio4; /* P: mutex */
197 197
198 spinlock_t lock; 198 spinlock_t lock;
199 struct timer_list timer; /* P: lock */ 199 struct timer_list timer; /* P: lock */
200 unsigned pending:1; /* P: lock */
201 200
202 /* 201 /*
203 * DMA (thus cache coherency maintenance) requires the 202 * DMA (thus cache coherency maintenance) requires the
@@ -206,8 +205,8 @@ struct ad7877 {
206 u16 conversion_data[AD7877_NR_SENSE] ____cacheline_aligned; 205 u16 conversion_data[AD7877_NR_SENSE] ____cacheline_aligned;
207}; 206};
208 207
209static int gpio3; 208static bool gpio3;
210module_param(gpio3, int, 0); 209module_param(gpio3, bool, 0);
211MODULE_PARM_DESC(gpio3, "If gpio3 is set to 1 AUX3 acts as GPIO3"); 210MODULE_PARM_DESC(gpio3, "If gpio3 is set to 1 AUX3 acts as GPIO3");
212 211
213/* 212/*
@@ -230,6 +229,7 @@ static int ad7877_read(struct spi_device *spi, u16 reg)
230 AD7877_READADD(reg)); 229 AD7877_READADD(reg));
231 req->xfer[0].tx_buf = &req->command; 230 req->xfer[0].tx_buf = &req->command;
232 req->xfer[0].len = 2; 231 req->xfer[0].len = 2;
232 req->xfer[0].cs_change = 1;
233 233
234 req->xfer[1].rx_buf = &req->sample; 234 req->xfer[1].rx_buf = &req->sample;
235 req->xfer[1].len = 2; 235 req->xfer[1].len = 2;
@@ -295,20 +295,25 @@ static int ad7877_read_adc(struct spi_device *spi, unsigned command)
295 295
296 req->xfer[0].tx_buf = &req->reset; 296 req->xfer[0].tx_buf = &req->reset;
297 req->xfer[0].len = 2; 297 req->xfer[0].len = 2;
298 req->xfer[0].cs_change = 1;
298 299
299 req->xfer[1].tx_buf = &req->ref_on; 300 req->xfer[1].tx_buf = &req->ref_on;
300 req->xfer[1].len = 2; 301 req->xfer[1].len = 2;
301 req->xfer[1].delay_usecs = ts->vref_delay_usecs; 302 req->xfer[1].delay_usecs = ts->vref_delay_usecs;
303 req->xfer[1].cs_change = 1;
302 304
303 req->xfer[2].tx_buf = &req->command; 305 req->xfer[2].tx_buf = &req->command;
304 req->xfer[2].len = 2; 306 req->xfer[2].len = 2;
305 req->xfer[2].delay_usecs = ts->vref_delay_usecs; 307 req->xfer[2].delay_usecs = ts->vref_delay_usecs;
308 req->xfer[2].cs_change = 1;
306 309
307 req->xfer[3].rx_buf = &req->sample; 310 req->xfer[3].rx_buf = &req->sample;
308 req->xfer[3].len = 2; 311 req->xfer[3].len = 2;
312 req->xfer[3].cs_change = 1;
309 313
310 req->xfer[4].tx_buf = &ts->cmd_crtl2; /*REF OFF*/ 314 req->xfer[4].tx_buf = &ts->cmd_crtl2; /*REF OFF*/
311 req->xfer[4].len = 2; 315 req->xfer[4].len = 2;
316 req->xfer[4].cs_change = 1;
312 317
313 req->xfer[5].tx_buf = &ts->cmd_crtl1; /*DEFAULT*/ 318 req->xfer[5].tx_buf = &ts->cmd_crtl1; /*DEFAULT*/
314 req->xfer[5].len = 2; 319 req->xfer[5].len = 2;
@@ -327,7 +332,7 @@ static int ad7877_read_adc(struct spi_device *spi, unsigned command)
327 return status ? : sample; 332 return status ? : sample;
328} 333}
329 334
330static void ad7877_rx(struct ad7877 *ts) 335static int ad7877_process_data(struct ad7877 *ts)
331{ 336{
332 struct input_dev *input_dev = ts->input; 337 struct input_dev *input_dev = ts->input;
333 unsigned Rt; 338 unsigned Rt;
@@ -354,11 +359,25 @@ static void ad7877_rx(struct ad7877 *ts)
354 Rt /= z1; 359 Rt /= z1;
355 Rt = (Rt + 2047) >> 12; 360 Rt = (Rt + 2047) >> 12;
356 361
362 /*
363 * Sample found inconsistent, pressure is beyond
364 * the maximum. Don't report it to user space.
365 */
366 if (Rt > ts->pressure_max)
367 return -EINVAL;
368
369 if (!timer_pending(&ts->timer))
370 input_report_key(input_dev, BTN_TOUCH, 1);
371
357 input_report_abs(input_dev, ABS_X, x); 372 input_report_abs(input_dev, ABS_X, x);
358 input_report_abs(input_dev, ABS_Y, y); 373 input_report_abs(input_dev, ABS_Y, y);
359 input_report_abs(input_dev, ABS_PRESSURE, Rt); 374 input_report_abs(input_dev, ABS_PRESSURE, Rt);
360 input_sync(input_dev); 375 input_sync(input_dev);
376
377 return 0;
361 } 378 }
379
380 return -EINVAL;
362} 381}
363 382
364static inline void ad7877_ts_event_release(struct ad7877 *ts) 383static inline void ad7877_ts_event_release(struct ad7877 *ts)
@@ -366,72 +385,56 @@ static inline void ad7877_ts_event_release(struct ad7877 *ts)
366 struct input_dev *input_dev = ts->input; 385 struct input_dev *input_dev = ts->input;
367 386
368 input_report_abs(input_dev, ABS_PRESSURE, 0); 387 input_report_abs(input_dev, ABS_PRESSURE, 0);
388 input_report_key(input_dev, BTN_TOUCH, 0);
369 input_sync(input_dev); 389 input_sync(input_dev);
370} 390}
371 391
372static void ad7877_timer(unsigned long handle) 392static void ad7877_timer(unsigned long handle)
373{ 393{
374 struct ad7877 *ts = (void *)handle; 394 struct ad7877 *ts = (void *)handle;
395 unsigned long flags;
375 396
397 spin_lock_irqsave(&ts->lock, flags);
376 ad7877_ts_event_release(ts); 398 ad7877_ts_event_release(ts);
399 spin_unlock_irqrestore(&ts->lock, flags);
377} 400}
378 401
379static irqreturn_t ad7877_irq(int irq, void *handle) 402static irqreturn_t ad7877_irq(int irq, void *handle)
380{ 403{
381 struct ad7877 *ts = handle; 404 struct ad7877 *ts = handle;
382 unsigned long flags; 405 unsigned long flags;
383 int status; 406 int error;
384 407
385 /* 408 error = spi_sync(ts->spi, &ts->msg);
386 * The repeated conversion sequencer controlled by TMR kicked off 409 if (error) {
387 * too fast. We ignore the last and process the sample sequence 410 dev_err(&ts->spi->dev, "spi_sync --> %d\n", error);
388 * currently in the queue. It can't be older than 9.4ms, and we 411 goto out;
389 * need to avoid that ts->msg doesn't get issued twice while in work. 412 }
390 */
391 413
392 spin_lock_irqsave(&ts->lock, flags); 414 spin_lock_irqsave(&ts->lock, flags);
393 if (!ts->pending) { 415 error = ad7877_process_data(ts);
394 ts->pending = 1; 416 if (!error)
395 417 mod_timer(&ts->timer, jiffies + TS_PEN_UP_TIMEOUT);
396 status = spi_async(ts->spi, &ts->msg);
397 if (status)
398 dev_err(&ts->spi->dev, "spi_sync --> %d\n", status);
399 }
400 spin_unlock_irqrestore(&ts->lock, flags); 418 spin_unlock_irqrestore(&ts->lock, flags);
401 419
420out:
402 return IRQ_HANDLED; 421 return IRQ_HANDLED;
403} 422}
404 423
405static void ad7877_callback(void *_ts)
406{
407 struct ad7877 *ts = _ts;
408
409 spin_lock_irq(&ts->lock);
410
411 ad7877_rx(ts);
412 ts->pending = 0;
413 mod_timer(&ts->timer, jiffies + TS_PEN_UP_TIMEOUT);
414
415 spin_unlock_irq(&ts->lock);
416}
417
418static void ad7877_disable(struct ad7877 *ts) 424static void ad7877_disable(struct ad7877 *ts)
419{ 425{
420 mutex_lock(&ts->mutex); 426 mutex_lock(&ts->mutex);
421 427
422 if (!ts->disabled) { 428 if (!ts->disabled) {
423 ts->disabled = 1; 429 ts->disabled = true;
424 disable_irq(ts->spi->irq); 430 disable_irq(ts->spi->irq);
425 431
426 /* Wait for spi_async callback */
427 while (ts->pending)
428 msleep(1);
429
430 if (del_timer_sync(&ts->timer)) 432 if (del_timer_sync(&ts->timer))
431 ad7877_ts_event_release(ts); 433 ad7877_ts_event_release(ts);
432 } 434 }
433 435
434 /* we know the chip's in lowpower mode since we always 436 /*
437 * We know the chip's in lowpower mode since we always
435 * leave it that way after every request 438 * leave it that way after every request
436 */ 439 */
437 440
@@ -443,7 +446,7 @@ static void ad7877_enable(struct ad7877 *ts)
443 mutex_lock(&ts->mutex); 446 mutex_lock(&ts->mutex);
444 447
445 if (ts->disabled) { 448 if (ts->disabled) {
446 ts->disabled = 0; 449 ts->disabled = false;
447 enable_irq(ts->spi->irq); 450 enable_irq(ts->spi->irq);
448 } 451 }
449 452
@@ -453,7 +456,7 @@ static void ad7877_enable(struct ad7877 *ts)
453#define SHOW(name) static ssize_t \ 456#define SHOW(name) static ssize_t \
454name ## _show(struct device *dev, struct device_attribute *attr, char *buf) \ 457name ## _show(struct device *dev, struct device_attribute *attr, char *buf) \
455{ \ 458{ \
456 struct ad7877 *ts = dev_get_drvdata(dev); \ 459 struct ad7877 *ts = dev_get_drvdata(dev); \
457 ssize_t v = ad7877_read_adc(ts->spi, \ 460 ssize_t v = ad7877_read_adc(ts->spi, \
458 AD7877_READ_CHAN(name)); \ 461 AD7877_READ_CHAN(name)); \
459 if (v < 0) \ 462 if (v < 0) \
@@ -473,7 +476,7 @@ SHOW(temp2)
473static ssize_t ad7877_disable_show(struct device *dev, 476static ssize_t ad7877_disable_show(struct device *dev,
474 struct device_attribute *attr, char *buf) 477 struct device_attribute *attr, char *buf)
475{ 478{
476 struct ad7877 *ts = dev_get_drvdata(dev); 479 struct ad7877 *ts = dev_get_drvdata(dev);
477 480
478 return sprintf(buf, "%u\n", ts->disabled); 481 return sprintf(buf, "%u\n", ts->disabled);
479} 482}
@@ -503,7 +506,7 @@ static DEVICE_ATTR(disable, 0664, ad7877_disable_show, ad7877_disable_store);
503static ssize_t ad7877_dac_show(struct device *dev, 506static ssize_t ad7877_dac_show(struct device *dev,
504 struct device_attribute *attr, char *buf) 507 struct device_attribute *attr, char *buf)
505{ 508{
506 struct ad7877 *ts = dev_get_drvdata(dev); 509 struct ad7877 *ts = dev_get_drvdata(dev);
507 510
508 return sprintf(buf, "%u\n", ts->dac); 511 return sprintf(buf, "%u\n", ts->dac);
509} 512}
@@ -533,7 +536,7 @@ static DEVICE_ATTR(dac, 0664, ad7877_dac_show, ad7877_dac_store);
533static ssize_t ad7877_gpio3_show(struct device *dev, 536static ssize_t ad7877_gpio3_show(struct device *dev,
534 struct device_attribute *attr, char *buf) 537 struct device_attribute *attr, char *buf)
535{ 538{
536 struct ad7877 *ts = dev_get_drvdata(dev); 539 struct ad7877 *ts = dev_get_drvdata(dev);
537 540
538 return sprintf(buf, "%u\n", ts->gpio3); 541 return sprintf(buf, "%u\n", ts->gpio3);
539} 542}
@@ -564,7 +567,7 @@ static DEVICE_ATTR(gpio3, 0664, ad7877_gpio3_show, ad7877_gpio3_store);
564static ssize_t ad7877_gpio4_show(struct device *dev, 567static ssize_t ad7877_gpio4_show(struct device *dev,
565 struct device_attribute *attr, char *buf) 568 struct device_attribute *attr, char *buf)
566{ 569{
567 struct ad7877 *ts = dev_get_drvdata(dev); 570 struct ad7877 *ts = dev_get_drvdata(dev);
568 571
569 return sprintf(buf, "%u\n", ts->gpio4); 572 return sprintf(buf, "%u\n", ts->gpio4);
570} 573}
@@ -597,16 +600,35 @@ static struct attribute *ad7877_attributes[] = {
597 &dev_attr_temp2.attr, 600 &dev_attr_temp2.attr,
598 &dev_attr_aux1.attr, 601 &dev_attr_aux1.attr,
599 &dev_attr_aux2.attr, 602 &dev_attr_aux2.attr,
603 &dev_attr_aux3.attr,
600 &dev_attr_bat1.attr, 604 &dev_attr_bat1.attr,
601 &dev_attr_bat2.attr, 605 &dev_attr_bat2.attr,
602 &dev_attr_disable.attr, 606 &dev_attr_disable.attr,
603 &dev_attr_dac.attr, 607 &dev_attr_dac.attr,
608 &dev_attr_gpio3.attr,
604 &dev_attr_gpio4.attr, 609 &dev_attr_gpio4.attr,
605 NULL 610 NULL
606}; 611};
607 612
613static mode_t ad7877_attr_is_visible(struct kobject *kobj,
614 struct attribute *attr, int n)
615{
616 mode_t mode = attr->mode;
617
618 if (attr == &dev_attr_aux3.attr) {
619 if (gpio3)
620 mode = 0;
621 } else if (attr == &dev_attr_gpio3.attr) {
622 if (!gpio3)
623 mode = 0;
624 }
625
626 return mode;
627}
628
608static const struct attribute_group ad7877_attr_group = { 629static const struct attribute_group ad7877_attr_group = {
609 .attrs = ad7877_attributes, 630 .is_visible = ad7877_attr_is_visible,
631 .attrs = ad7877_attributes,
610}; 632};
611 633
612static void ad7877_setup_ts_def_msg(struct spi_device *spi, struct ad7877 *ts) 634static void ad7877_setup_ts_def_msg(struct spi_device *spi, struct ad7877 *ts)
@@ -635,22 +657,25 @@ static void ad7877_setup_ts_def_msg(struct spi_device *spi, struct ad7877 *ts)
635 657
636 spi_message_init(m); 658 spi_message_init(m);
637 659
638 m->complete = ad7877_callback;
639 m->context = ts; 660 m->context = ts;
640 661
641 ts->xfer[0].tx_buf = &ts->cmd_crtl1; 662 ts->xfer[0].tx_buf = &ts->cmd_crtl1;
642 ts->xfer[0].len = 2; 663 ts->xfer[0].len = 2;
664 ts->xfer[0].cs_change = 1;
643 665
644 spi_message_add_tail(&ts->xfer[0], m); 666 spi_message_add_tail(&ts->xfer[0], m);
645 667
646 ts->xfer[1].tx_buf = &ts->cmd_dummy; /* Send ZERO */ 668 ts->xfer[1].tx_buf = &ts->cmd_dummy; /* Send ZERO */
647 ts->xfer[1].len = 2; 669 ts->xfer[1].len = 2;
670 ts->xfer[1].cs_change = 1;
648 671
649 spi_message_add_tail(&ts->xfer[1], m); 672 spi_message_add_tail(&ts->xfer[1], m);
650 673
651 for (i = 0; i < 11; i++) { 674 for (i = 0; i < AD7877_NR_SENSE; i++) {
652 ts->xfer[i + 2].rx_buf = &ts->conversion_data[AD7877_SEQ_YPOS + i]; 675 ts->xfer[i + 2].rx_buf = &ts->conversion_data[AD7877_SEQ_YPOS + i];
653 ts->xfer[i + 2].len = 2; 676 ts->xfer[i + 2].len = 2;
677 if (i < (AD7877_NR_SENSE - 1))
678 ts->xfer[i + 2].cs_change = 1;
654 spi_message_add_tail(&ts->xfer[i + 2], m); 679 spi_message_add_tail(&ts->xfer[i + 2], m);
655 } 680 }
656} 681}
@@ -718,6 +743,8 @@ static int __devinit ad7877_probe(struct spi_device *spi)
718 input_dev->phys = ts->phys; 743 input_dev->phys = ts->phys;
719 input_dev->dev.parent = &spi->dev; 744 input_dev->dev.parent = &spi->dev;
720 745
746 __set_bit(EV_KEY, input_dev->evbit);
747 __set_bit(BTN_TOUCH, input_dev->keybit);
721 __set_bit(EV_ABS, input_dev->evbit); 748 __set_bit(EV_ABS, input_dev->evbit);
722 __set_bit(ABS_X, input_dev->absbit); 749 __set_bit(ABS_X, input_dev->absbit);
723 __set_bit(ABS_Y, input_dev->absbit); 750 __set_bit(ABS_Y, input_dev->absbit);
@@ -752,8 +779,9 @@ static int __devinit ad7877_probe(struct spi_device *spi)
752 779
753 /* Request AD7877 /DAV GPIO interrupt */ 780 /* Request AD7877 /DAV GPIO interrupt */
754 781
755 err = request_irq(spi->irq, ad7877_irq, IRQF_TRIGGER_FALLING, 782 err = request_threaded_irq(spi->irq, NULL, ad7877_irq,
756 spi->dev.driver->name, ts); 783 IRQF_TRIGGER_FALLING | IRQF_ONESHOT,
784 spi->dev.driver->name, ts);
757 if (err) { 785 if (err) {
758 dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq); 786 dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq);
759 goto err_free_mem; 787 goto err_free_mem;
@@ -763,20 +791,12 @@ static int __devinit ad7877_probe(struct spi_device *spi)
763 if (err) 791 if (err)
764 goto err_free_irq; 792 goto err_free_irq;
765 793
766 err = device_create_file(&spi->dev,
767 gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
768 if (err)
769 goto err_remove_attr_group;
770
771 err = input_register_device(input_dev); 794 err = input_register_device(input_dev);
772 if (err) 795 if (err)
773 goto err_remove_attr; 796 goto err_remove_attr_group;
774 797
775 return 0; 798 return 0;
776 799
777err_remove_attr:
778 device_remove_file(&spi->dev,
779 gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
780err_remove_attr_group: 800err_remove_attr_group:
781 sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group); 801 sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group);
782err_free_irq: 802err_free_irq:
@@ -790,11 +810,9 @@ err_free_mem:
790 810
791static int __devexit ad7877_remove(struct spi_device *spi) 811static int __devexit ad7877_remove(struct spi_device *spi)
792{ 812{
793 struct ad7877 *ts = dev_get_drvdata(&spi->dev); 813 struct ad7877 *ts = dev_get_drvdata(&spi->dev);
794 814
795 sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group); 815 sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group);
796 device_remove_file(&spi->dev,
797 gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
798 816
799 ad7877_disable(ts); 817 ad7877_disable(ts);
800 free_irq(ts->spi->irq, ts); 818 free_irq(ts->spi->irq, ts);
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index 16031933a8f6..14ea54b78e46 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -17,9 +17,11 @@
17 * it under the terms of the GNU General Public License version 2 as 17 * it under the terms of the GNU General Public License version 2 as
18 * published by the Free Software Foundation. 18 * published by the Free Software Foundation.
19 */ 19 */
20#include <linux/types.h>
20#include <linux/hwmon.h> 21#include <linux/hwmon.h>
21#include <linux/init.h> 22#include <linux/init.h>
22#include <linux/err.h> 23#include <linux/err.h>
24#include <linux/sched.h>
23#include <linux/delay.h> 25#include <linux/delay.h>
24#include <linux/input.h> 26#include <linux/input.h>
25#include <linux/interrupt.h> 27#include <linux/interrupt.h>
@@ -52,22 +54,23 @@
52 * files. 54 * files.
53 */ 55 */
54 56
55#define TS_POLL_DELAY (1 * 1000000) /* ns delay before the first sample */ 57#define TS_POLL_DELAY 1 /* ms delay before the first sample */
56#define TS_POLL_PERIOD (5 * 1000000) /* ns delay between samples */ 58#define TS_POLL_PERIOD 5 /* ms delay between samples */
57 59
58/* this driver doesn't aim at the peak continuous sample rate */ 60/* this driver doesn't aim at the peak continuous sample rate */
59#define SAMPLE_BITS (8 /*cmd*/ + 16 /*sample*/ + 2 /* before, after */) 61#define SAMPLE_BITS (8 /*cmd*/ + 16 /*sample*/ + 2 /* before, after */)
60 62
61struct ts_event { 63struct ts_event {
62 /* For portability, we can't read 12 bit values using SPI (which 64 /*
63 * would make the controller deliver them as native byteorder u16 65 * For portability, we can't read 12 bit values using SPI (which
66 * would make the controller deliver them as native byte order u16
64 * with msbs zeroed). Instead, we read them as two 8-bit values, 67 * with msbs zeroed). Instead, we read them as two 8-bit values,
65 * *** WHICH NEED BYTESWAPPING *** and range adjustment. 68 * *** WHICH NEED BYTESWAPPING *** and range adjustment.
66 */ 69 */
67 u16 x; 70 u16 x;
68 u16 y; 71 u16 y;
69 u16 z1, z2; 72 u16 z1, z2;
70 int ignore; 73 bool ignore;
71 u8 x_buf[3]; 74 u8 x_buf[3];
72 u8 y_buf[3]; 75 u8 y_buf[3];
73}; 76};
@@ -110,8 +113,11 @@ struct ads7846 {
110 113
111 struct spi_transfer xfer[18]; 114 struct spi_transfer xfer[18];
112 struct spi_message msg[5]; 115 struct spi_message msg[5];
113 struct spi_message *last_msg; 116 int msg_count;
114 int msg_idx; 117 wait_queue_head_t wait;
118
119 bool pendown;
120
115 int read_cnt; 121 int read_cnt;
116 int read_rep; 122 int read_rep;
117 int last_read; 123 int last_read;
@@ -122,14 +128,10 @@ struct ads7846 {
122 128
123 u16 penirq_recheck_delay_usecs; 129 u16 penirq_recheck_delay_usecs;
124 130
125 spinlock_t lock; 131 struct mutex lock;
126 struct hrtimer timer; 132 bool stopped; /* P: lock */
127 unsigned pendown:1; /* P: lock */ 133 bool disabled; /* P: lock */
128 unsigned pending:1; /* P: lock */ 134 bool suspended; /* P: lock */
129// FIXME remove "irq_disabled"
130 unsigned irq_disabled:1; /* P: lock */
131 unsigned disabled:1;
132 unsigned is_suspended:1;
133 135
134 int (*filter)(void *data, int data_idx, int *val); 136 int (*filter)(void *data, int data_idx, int *val);
135 void *filter_data; 137 void *filter_data;
@@ -165,7 +167,7 @@ struct ads7846 {
165#define ADS_12_BIT (0 << 3) 167#define ADS_12_BIT (0 << 3)
166#define ADS_SER (1 << 2) /* non-differential */ 168#define ADS_SER (1 << 2) /* non-differential */
167#define ADS_DFR (0 << 2) /* differential */ 169#define ADS_DFR (0 << 2) /* differential */
168#define ADS_PD10_PDOWN (0 << 0) /* lowpower mode + penirq */ 170#define ADS_PD10_PDOWN (0 << 0) /* low power mode + penirq */
169#define ADS_PD10_ADC_ON (1 << 0) /* ADC on */ 171#define ADS_PD10_ADC_ON (1 << 0) /* ADC on */
170#define ADS_PD10_REF_ON (2 << 0) /* vREF on + penirq */ 172#define ADS_PD10_REF_ON (2 << 0) /* vREF on + penirq */
171#define ADS_PD10_ALL_ON (3 << 0) /* ADC + vREF on */ 173#define ADS_PD10_ALL_ON (3 << 0) /* ADC + vREF on */
@@ -193,6 +195,78 @@ struct ads7846 {
193#define REF_ON (READ_12BIT_DFR(x, 1, 1)) 195#define REF_ON (READ_12BIT_DFR(x, 1, 1))
194#define REF_OFF (READ_12BIT_DFR(y, 0, 0)) 196#define REF_OFF (READ_12BIT_DFR(y, 0, 0))
195 197
198/* Must be called with ts->lock held */
199static void ads7846_stop(struct ads7846 *ts)
200{
201 if (!ts->disabled && !ts->suspended) {
202 /* Signal IRQ thread to stop polling and disable the handler. */
203 ts->stopped = true;
204 mb();
205 wake_up(&ts->wait);
206 disable_irq(ts->spi->irq);
207 }
208}
209
210/* Must be called with ts->lock held */
211static void ads7846_restart(struct ads7846 *ts)
212{
213 if (!ts->disabled && !ts->suspended) {
214 /* Tell IRQ thread that it may poll the device. */
215 ts->stopped = false;
216 mb();
217 enable_irq(ts->spi->irq);
218 }
219}
220
221/* Must be called with ts->lock held */
222static void __ads7846_disable(struct ads7846 *ts)
223{
224 ads7846_stop(ts);
225 regulator_disable(ts->reg);
226
227 /*
228 * We know the chip's in low power mode since we always
229 * leave it that way after every request
230 */
231}
232
233/* Must be called with ts->lock held */
234static void __ads7846_enable(struct ads7846 *ts)
235{
236 regulator_enable(ts->reg);
237 ads7846_restart(ts);
238}
239
240static void ads7846_disable(struct ads7846 *ts)
241{
242 mutex_lock(&ts->lock);
243
244 if (!ts->disabled) {
245
246 if (!ts->suspended)
247 __ads7846_disable(ts);
248
249 ts->disabled = true;
250 }
251
252 mutex_unlock(&ts->lock);
253}
254
255static void ads7846_enable(struct ads7846 *ts)
256{
257 mutex_lock(&ts->lock);
258
259 if (ts->disabled) {
260
261 ts->disabled = false;
262
263 if (!ts->suspended)
264 __ads7846_enable(ts);
265 }
266
267 mutex_unlock(&ts->lock);
268}
269
196/*--------------------------------------------------------------------------*/ 270/*--------------------------------------------------------------------------*/
197 271
198/* 272/*
@@ -219,23 +293,15 @@ struct ads7845_ser_req {
219 struct spi_transfer xfer[2]; 293 struct spi_transfer xfer[2];
220}; 294};
221 295
222static void ads7846_enable(struct ads7846 *ts);
223static void ads7846_disable(struct ads7846 *ts);
224
225static int device_suspended(struct device *dev)
226{
227 struct ads7846 *ts = dev_get_drvdata(dev);
228 return ts->is_suspended || ts->disabled;
229}
230
231static int ads7846_read12_ser(struct device *dev, unsigned command) 296static int ads7846_read12_ser(struct device *dev, unsigned command)
232{ 297{
233 struct spi_device *spi = to_spi_device(dev); 298 struct spi_device *spi = to_spi_device(dev);
234 struct ads7846 *ts = dev_get_drvdata(dev); 299 struct ads7846 *ts = dev_get_drvdata(dev);
235 struct ser_req *req = kzalloc(sizeof *req, GFP_KERNEL); 300 struct ser_req *req;
236 int status; 301 int status;
237 int use_internal; 302 int use_internal;
238 303
304 req = kzalloc(sizeof *req, GFP_KERNEL);
239 if (!req) 305 if (!req)
240 return -ENOMEM; 306 return -ENOMEM;
241 307
@@ -282,11 +348,11 @@ static int ads7846_read12_ser(struct device *dev, unsigned command)
282 CS_CHANGE(req->xfer[5]); 348 CS_CHANGE(req->xfer[5]);
283 spi_message_add_tail(&req->xfer[5], &req->msg); 349 spi_message_add_tail(&req->xfer[5], &req->msg);
284 350
285 ts->irq_disabled = 1; 351 mutex_lock(&ts->lock);
286 disable_irq(spi->irq); 352 ads7846_stop(ts);
287 status = spi_sync(spi, &req->msg); 353 status = spi_sync(spi, &req->msg);
288 ts->irq_disabled = 0; 354 ads7846_restart(ts);
289 enable_irq(spi->irq); 355 mutex_unlock(&ts->lock);
290 356
291 if (status == 0) { 357 if (status == 0) {
292 /* on-wire is a must-ignore bit, a BE12 value, then padding */ 358 /* on-wire is a must-ignore bit, a BE12 value, then padding */
@@ -301,11 +367,12 @@ static int ads7846_read12_ser(struct device *dev, unsigned command)
301 367
302static int ads7845_read12_ser(struct device *dev, unsigned command) 368static int ads7845_read12_ser(struct device *dev, unsigned command)
303{ 369{
304 struct spi_device *spi = to_spi_device(dev); 370 struct spi_device *spi = to_spi_device(dev);
305 struct ads7846 *ts = dev_get_drvdata(dev); 371 struct ads7846 *ts = dev_get_drvdata(dev);
306 struct ads7845_ser_req *req = kzalloc(sizeof *req, GFP_KERNEL); 372 struct ads7845_ser_req *req;
307 int status; 373 int status;
308 374
375 req = kzalloc(sizeof *req, GFP_KERNEL);
309 if (!req) 376 if (!req)
310 return -ENOMEM; 377 return -ENOMEM;
311 378
@@ -317,11 +384,11 @@ static int ads7845_read12_ser(struct device *dev, unsigned command)
317 req->xfer[0].len = 3; 384 req->xfer[0].len = 3;
318 spi_message_add_tail(&req->xfer[0], &req->msg); 385 spi_message_add_tail(&req->xfer[0], &req->msg);
319 386
320 ts->irq_disabled = 1; 387 mutex_lock(&ts->lock);
321 disable_irq(spi->irq); 388 ads7846_stop(ts);
322 status = spi_sync(spi, &req->msg); 389 status = spi_sync(spi, &req->msg);
323 ts->irq_disabled = 0; 390 ads7846_restart(ts);
324 enable_irq(spi->irq); 391 mutex_unlock(&ts->lock);
325 392
326 if (status == 0) { 393 if (status == 0) {
327 /* BE12 value, then padding */ 394 /* BE12 value, then padding */
@@ -374,6 +441,7 @@ static inline unsigned vaux_adjust(struct ads7846 *ts, ssize_t v)
374 /* external resistors may scale vAUX into 0..vREF */ 441 /* external resistors may scale vAUX into 0..vREF */
375 retval *= ts->vref_mv; 442 retval *= ts->vref_mv;
376 retval = retval >> 12; 443 retval = retval >> 12;
444
377 return retval; 445 return retval;
378} 446}
379 447
@@ -384,13 +452,13 @@ static inline unsigned vbatt_adjust(struct ads7846 *ts, ssize_t v)
384 /* ads7846 has a resistor ladder to scale this signal down */ 452 /* ads7846 has a resistor ladder to scale this signal down */
385 if (ts->model == 7846) 453 if (ts->model == 7846)
386 retval *= 4; 454 retval *= 4;
455
387 return retval; 456 return retval;
388} 457}
389 458
390SHOW(in0_input, vaux, vaux_adjust) 459SHOW(in0_input, vaux, vaux_adjust)
391SHOW(in1_input, vbatt, vbatt_adjust) 460SHOW(in1_input, vbatt, vbatt_adjust)
392 461
393
394static struct attribute *ads7846_attributes[] = { 462static struct attribute *ads7846_attributes[] = {
395 &dev_attr_temp0.attr, 463 &dev_attr_temp0.attr,
396 &dev_attr_temp1.attr, 464 &dev_attr_temp1.attr,
@@ -498,17 +566,12 @@ static inline void ads784x_hwmon_unregister(struct spi_device *spi,
498} 566}
499#endif 567#endif
500 568
501static int is_pen_down(struct device *dev)
502{
503 struct ads7846 *ts = dev_get_drvdata(dev);
504
505 return ts->pendown;
506}
507
508static ssize_t ads7846_pen_down_show(struct device *dev, 569static ssize_t ads7846_pen_down_show(struct device *dev,
509 struct device_attribute *attr, char *buf) 570 struct device_attribute *attr, char *buf)
510{ 571{
511 return sprintf(buf, "%u\n", is_pen_down(dev)); 572 struct ads7846 *ts = dev_get_drvdata(dev);
573
574 return sprintf(buf, "%u\n", ts->pendown);
512} 575}
513 576
514static DEVICE_ATTR(pen_down, S_IRUGO, ads7846_pen_down_show, NULL); 577static DEVICE_ATTR(pen_down, S_IRUGO, ads7846_pen_down_show, NULL);
@@ -516,7 +579,7 @@ static DEVICE_ATTR(pen_down, S_IRUGO, ads7846_pen_down_show, NULL);
516static ssize_t ads7846_disable_show(struct device *dev, 579static ssize_t ads7846_disable_show(struct device *dev,
517 struct device_attribute *attr, char *buf) 580 struct device_attribute *attr, char *buf)
518{ 581{
519 struct ads7846 *ts = dev_get_drvdata(dev); 582 struct ads7846 *ts = dev_get_drvdata(dev);
520 583
521 return sprintf(buf, "%u\n", ts->disabled); 584 return sprintf(buf, "%u\n", ts->disabled);
522} 585}
@@ -531,15 +594,11 @@ static ssize_t ads7846_disable_store(struct device *dev,
531 if (strict_strtoul(buf, 10, &i)) 594 if (strict_strtoul(buf, 10, &i))
532 return -EINVAL; 595 return -EINVAL;
533 596
534 spin_lock_irq(&ts->lock);
535
536 if (i) 597 if (i)
537 ads7846_disable(ts); 598 ads7846_disable(ts);
538 else 599 else
539 ads7846_enable(ts); 600 ads7846_enable(ts);
540 601
541 spin_unlock_irq(&ts->lock);
542
543 return count; 602 return count;
544} 603}
545 604
@@ -569,23 +628,141 @@ static void null_wait_for_sync(void)
569{ 628{
570} 629}
571 630
572/* 631static int ads7846_debounce_filter(void *ads, int data_idx, int *val)
573 * PENIRQ only kicks the timer. The timer only reissues the SPI transfer, 632{
574 * to retrieve touchscreen status. 633 struct ads7846 *ts = ads;
575 * 634
576 * The SPI transfer completion callback does the real work. It reports 635 if (!ts->read_cnt || (abs(ts->last_read - *val) > ts->debounce_tol)) {
577 * touchscreen events and reactivates the timer (or IRQ) as appropriate. 636 /* Start over collecting consistent readings. */
578 */ 637 ts->read_rep = 0;
638 /*
639 * Repeat it, if this was the first read or the read
640 * wasn't consistent enough.
641 */
642 if (ts->read_cnt < ts->debounce_max) {
643 ts->last_read = *val;
644 ts->read_cnt++;
645 return ADS7846_FILTER_REPEAT;
646 } else {
647 /*
648 * Maximum number of debouncing reached and still
649 * not enough number of consistent readings. Abort
650 * the whole sample, repeat it in the next sampling
651 * period.
652 */
653 ts->read_cnt = 0;
654 return ADS7846_FILTER_IGNORE;
655 }
656 } else {
657 if (++ts->read_rep > ts->debounce_rep) {
658 /*
659 * Got a good reading for this coordinate,
660 * go for the next one.
661 */
662 ts->read_cnt = 0;
663 ts->read_rep = 0;
664 return ADS7846_FILTER_OK;
665 } else {
666 /* Read more values that are consistent. */
667 ts->read_cnt++;
668 return ADS7846_FILTER_REPEAT;
669 }
670 }
671}
672
673static int ads7846_no_filter(void *ads, int data_idx, int *val)
674{
675 return ADS7846_FILTER_OK;
676}
677
678static int ads7846_get_value(struct ads7846 *ts, struct spi_message *m)
679{
680 struct spi_transfer *t =
681 list_entry(m->transfers.prev, struct spi_transfer, transfer_list);
682
683 if (ts->model == 7845) {
684 return be16_to_cpup((__be16 *)&(((char*)t->rx_buf)[1])) >> 3;
685 } else {
686 /*
687 * adjust: on-wire is a must-ignore bit, a BE12 value, then
688 * padding; built from two 8 bit values written msb-first.
689 */
690 return be16_to_cpup((__be16 *)t->rx_buf) >> 3;
691 }
692}
693
694static void ads7846_update_value(struct spi_message *m, int val)
695{
696 struct spi_transfer *t =
697 list_entry(m->transfers.prev, struct spi_transfer, transfer_list);
698
699 *(u16 *)t->rx_buf = val;
700}
701
702static void ads7846_read_state(struct ads7846 *ts)
703{
704 struct ads7846_packet *packet = ts->packet;
705 struct spi_message *m;
706 int msg_idx = 0;
707 int val;
708 int action;
709 int error;
710
711 while (msg_idx < ts->msg_count) {
712
713 ts->wait_for_sync();
714
715 m = &ts->msg[msg_idx];
716 error = spi_sync(ts->spi, m);
717 if (error) {
718 dev_err(&ts->spi->dev, "spi_async --> %d\n", error);
719 packet->tc.ignore = true;
720 return;
721 }
722
723 /*
724 * Last message is power down request, no need to convert
725 * or filter the value.
726 */
727 if (msg_idx < ts->msg_count - 1) {
579 728
580static void ads7846_rx(void *ads) 729 val = ads7846_get_value(ts, m);
730
731 action = ts->filter(ts->filter_data, msg_idx, &val);
732 switch (action) {
733 case ADS7846_FILTER_REPEAT:
734 continue;
735
736 case ADS7846_FILTER_IGNORE:
737 packet->tc.ignore = true;
738 msg_idx = ts->msg_count - 1;
739 continue;
740
741 case ADS7846_FILTER_OK:
742 ads7846_update_value(m, val);
743 packet->tc.ignore = false;
744 msg_idx++;
745 break;
746
747 default:
748 BUG();
749 }
750 } else {
751 msg_idx++;
752 }
753 }
754}
755
756static void ads7846_report_state(struct ads7846 *ts)
581{ 757{
582 struct ads7846 *ts = ads; 758 struct ads7846_packet *packet = ts->packet;
583 struct ads7846_packet *packet = ts->packet; 759 unsigned int Rt;
584 unsigned Rt; 760 u16 x, y, z1, z2;
585 u16 x, y, z1, z2;
586 761
587 /* ads7846_rx_val() did in-place conversion (including byteswap) from 762 /*
588 * on-the-wire format as part of debouncing to get stable readings. 763 * ads7846_get_value() does in-place conversion (including byte swap)
764 * from on-the-wire format as part of debouncing to get stable
765 * readings.
589 */ 766 */
590 if (ts->model == 7845) { 767 if (ts->model == 7845) {
591 x = *(u16 *)packet->tc.x_buf; 768 x = *(u16 *)packet->tc.x_buf;
@@ -623,19 +800,19 @@ static void ads7846_rx(void *ads)
623 Rt = 0; 800 Rt = 0;
624 } 801 }
625 802
626 /* Sample found inconsistent by debouncing or pressure is beyond 803 /*
804 * Sample found inconsistent by debouncing or pressure is beyond
627 * the maximum. Don't report it to user space, repeat at least 805 * the maximum. Don't report it to user space, repeat at least
628 * once more the measurement 806 * once more the measurement
629 */ 807 */
630 if (packet->tc.ignore || Rt > ts->pressure_max) { 808 if (packet->tc.ignore || Rt > ts->pressure_max) {
631 dev_vdbg(&ts->spi->dev, "ignored %d pressure %d\n", 809 dev_vdbg(&ts->spi->dev, "ignored %d pressure %d\n",
632 packet->tc.ignore, Rt); 810 packet->tc.ignore, Rt);
633 hrtimer_start(&ts->timer, ktime_set(0, TS_POLL_PERIOD),
634 HRTIMER_MODE_REL);
635 return; 811 return;
636 } 812 }
637 813
638 /* Maybe check the pendown state before reporting. This discards 814 /*
815 * Maybe check the pendown state before reporting. This discards
639 * false readings when the pen is lifted. 816 * false readings when the pen is lifted.
640 */ 817 */
641 if (ts->penirq_recheck_delay_usecs) { 818 if (ts->penirq_recheck_delay_usecs) {
@@ -644,8 +821,9 @@ static void ads7846_rx(void *ads)
644 Rt = 0; 821 Rt = 0;
645 } 822 }
646 823
647 /* NOTE: We can't rely on the pressure to determine the pen down 824 /*
648 * state, even this controller has a pressure sensor. The pressure 825 * NOTE: We can't rely on the pressure to determine the pen down
826 * state, even this controller has a pressure sensor. The pressure
649 * value can fluctuate for quite a while after lifting the pen and 827 * value can fluctuate for quite a while after lifting the pen and
650 * in some cases may not even settle at the expected value. 828 * in some cases may not even settle at the expected value.
651 * 829 *
@@ -655,15 +833,15 @@ static void ads7846_rx(void *ads)
655 if (Rt) { 833 if (Rt) {
656 struct input_dev *input = ts->input; 834 struct input_dev *input = ts->input;
657 835
836 if (ts->swap_xy)
837 swap(x, y);
838
658 if (!ts->pendown) { 839 if (!ts->pendown) {
659 input_report_key(input, BTN_TOUCH, 1); 840 input_report_key(input, BTN_TOUCH, 1);
660 ts->pendown = 1; 841 ts->pendown = true;
661 dev_vdbg(&ts->spi->dev, "DOWN\n"); 842 dev_vdbg(&ts->spi->dev, "DOWN\n");
662 } 843 }
663 844
664 if (ts->swap_xy)
665 swap(x, y);
666
667 input_report_abs(input, ABS_X, x); 845 input_report_abs(input, ABS_X, x);
668 input_report_abs(input, ABS_Y, y); 846 input_report_abs(input, ABS_Y, y);
669 input_report_abs(input, ABS_PRESSURE, ts->pressure_max - Rt); 847 input_report_abs(input, ABS_PRESSURE, ts->pressure_max - Rt);
@@ -671,246 +849,94 @@ static void ads7846_rx(void *ads)
671 input_sync(input); 849 input_sync(input);
672 dev_vdbg(&ts->spi->dev, "%4d/%4d/%4d\n", x, y, Rt); 850 dev_vdbg(&ts->spi->dev, "%4d/%4d/%4d\n", x, y, Rt);
673 } 851 }
674
675 hrtimer_start(&ts->timer, ktime_set(0, TS_POLL_PERIOD),
676 HRTIMER_MODE_REL);
677}
678
679static int ads7846_debounce(void *ads, int data_idx, int *val)
680{
681 struct ads7846 *ts = ads;
682
683 if (!ts->read_cnt || (abs(ts->last_read - *val) > ts->debounce_tol)) {
684 /* Start over collecting consistent readings. */
685 ts->read_rep = 0;
686 /* Repeat it, if this was the first read or the read
687 * wasn't consistent enough. */
688 if (ts->read_cnt < ts->debounce_max) {
689 ts->last_read = *val;
690 ts->read_cnt++;
691 return ADS7846_FILTER_REPEAT;
692 } else {
693 /* Maximum number of debouncing reached and still
694 * not enough number of consistent readings. Abort
695 * the whole sample, repeat it in the next sampling
696 * period.
697 */
698 ts->read_cnt = 0;
699 return ADS7846_FILTER_IGNORE;
700 }
701 } else {
702 if (++ts->read_rep > ts->debounce_rep) {
703 /* Got a good reading for this coordinate,
704 * go for the next one. */
705 ts->read_cnt = 0;
706 ts->read_rep = 0;
707 return ADS7846_FILTER_OK;
708 } else {
709 /* Read more values that are consistent. */
710 ts->read_cnt++;
711 return ADS7846_FILTER_REPEAT;
712 }
713 }
714} 852}
715 853
716static int ads7846_no_filter(void *ads, int data_idx, int *val) 854static irqreturn_t ads7846_hard_irq(int irq, void *handle)
717{ 855{
718 return ADS7846_FILTER_OK; 856 struct ads7846 *ts = handle;
719}
720
721static void ads7846_rx_val(void *ads)
722{
723 struct ads7846 *ts = ads;
724 struct ads7846_packet *packet = ts->packet;
725 struct spi_message *m;
726 struct spi_transfer *t;
727 int val;
728 int action;
729 int status;
730
731 m = &ts->msg[ts->msg_idx];
732 t = list_entry(m->transfers.prev, struct spi_transfer, transfer_list);
733
734 if (ts->model == 7845) {
735 val = be16_to_cpup((__be16 *)&(((char*)t->rx_buf)[1])) >> 3;
736 } else {
737 /* adjust: on-wire is a must-ignore bit, a BE12 value, then
738 * padding; built from two 8 bit values written msb-first.
739 */
740 val = be16_to_cpup((__be16 *)t->rx_buf) >> 3;
741 }
742 857
743 action = ts->filter(ts->filter_data, ts->msg_idx, &val); 858 return get_pendown_state(ts) ? IRQ_WAKE_THREAD : IRQ_HANDLED;
744 switch (action) {
745 case ADS7846_FILTER_REPEAT:
746 break;
747 case ADS7846_FILTER_IGNORE:
748 packet->tc.ignore = 1;
749 /* Last message will contain ads7846_rx() as the
750 * completion function.
751 */
752 m = ts->last_msg;
753 break;
754 case ADS7846_FILTER_OK:
755 *(u16 *)t->rx_buf = val;
756 packet->tc.ignore = 0;
757 m = &ts->msg[++ts->msg_idx];
758 break;
759 default:
760 BUG();
761 }
762 ts->wait_for_sync();
763 status = spi_async(ts->spi, m);
764 if (status)
765 dev_err(&ts->spi->dev, "spi_async --> %d\n",
766 status);
767} 859}
768 860
769static enum hrtimer_restart ads7846_timer(struct hrtimer *handle)
770{
771 struct ads7846 *ts = container_of(handle, struct ads7846, timer);
772 int status = 0;
773
774 spin_lock(&ts->lock);
775
776 if (unlikely(!get_pendown_state(ts) ||
777 device_suspended(&ts->spi->dev))) {
778 if (ts->pendown) {
779 struct input_dev *input = ts->input;
780
781 input_report_key(input, BTN_TOUCH, 0);
782 input_report_abs(input, ABS_PRESSURE, 0);
783 input_sync(input);
784
785 ts->pendown = 0;
786 dev_vdbg(&ts->spi->dev, "UP\n");
787 }
788
789 /* measurement cycle ended */
790 if (!device_suspended(&ts->spi->dev)) {
791 ts->irq_disabled = 0;
792 enable_irq(ts->spi->irq);
793 }
794 ts->pending = 0;
795 } else {
796 /* pen is still down, continue with the measurement */
797 ts->msg_idx = 0;
798 ts->wait_for_sync();
799 status = spi_async(ts->spi, &ts->msg[0]);
800 if (status)
801 dev_err(&ts->spi->dev, "spi_async --> %d\n", status);
802 }
803
804 spin_unlock(&ts->lock);
805 return HRTIMER_NORESTART;
806}
807 861
808static irqreturn_t ads7846_irq(int irq, void *handle) 862static irqreturn_t ads7846_irq(int irq, void *handle)
809{ 863{
810 struct ads7846 *ts = handle; 864 struct ads7846 *ts = handle;
811 unsigned long flags;
812
813 spin_lock_irqsave(&ts->lock, flags);
814 if (likely(get_pendown_state(ts))) {
815 if (!ts->irq_disabled) {
816 /* The ARM do_simple_IRQ() dispatcher doesn't act
817 * like the other dispatchers: it will report IRQs
818 * even after they've been disabled. We work around
819 * that here. (The "generic irq" framework may help...)
820 */
821 ts->irq_disabled = 1;
822 disable_irq_nosync(ts->spi->irq);
823 ts->pending = 1;
824 hrtimer_start(&ts->timer, ktime_set(0, TS_POLL_DELAY),
825 HRTIMER_MODE_REL);
826 }
827 }
828 spin_unlock_irqrestore(&ts->lock, flags);
829 865
830 return IRQ_HANDLED; 866 /* Start with a small delay before checking pendown state */
831} 867 msleep(TS_POLL_DELAY);
832 868
833/*--------------------------------------------------------------------------*/ 869 while (!ts->stopped && get_pendown_state(ts)) {
834 870
835/* Must be called with ts->lock held */ 871 /* pen is down, continue with the measurement */
836static void ads7846_disable(struct ads7846 *ts) 872 ads7846_read_state(ts);
837{
838 if (ts->disabled)
839 return;
840 873
841 ts->disabled = 1; 874 if (!ts->stopped)
875 ads7846_report_state(ts);
842 876
843 /* are we waiting for IRQ, or polling? */ 877 wait_event_timeout(ts->wait, ts->stopped,
844 if (!ts->pending) { 878 msecs_to_jiffies(TS_POLL_PERIOD));
845 ts->irq_disabled = 1;
846 disable_irq(ts->spi->irq);
847 } else {
848 /* the timer will run at least once more, and
849 * leave everything in a clean state, IRQ disabled
850 */
851 while (ts->pending) {
852 spin_unlock_irq(&ts->lock);
853 msleep(1);
854 spin_lock_irq(&ts->lock);
855 }
856 } 879 }
857 880
858 regulator_disable(ts->reg); 881 if (ts->pendown) {
859 882 struct input_dev *input = ts->input;
860 /* we know the chip's in lowpower mode since we always
861 * leave it that way after every request
862 */
863}
864 883
865/* Must be called with ts->lock held */ 884 input_report_key(input, BTN_TOUCH, 0);
866static void ads7846_enable(struct ads7846 *ts) 885 input_report_abs(input, ABS_PRESSURE, 0);
867{ 886 input_sync(input);
868 if (!ts->disabled)
869 return;
870 887
871 regulator_enable(ts->reg); 888 ts->pendown = false;
889 dev_vdbg(&ts->spi->dev, "UP\n");
890 }
872 891
873 ts->disabled = 0; 892 return IRQ_HANDLED;
874 ts->irq_disabled = 0;
875 enable_irq(ts->spi->irq);
876} 893}
877 894
878static int ads7846_suspend(struct spi_device *spi, pm_message_t message) 895static int ads7846_suspend(struct spi_device *spi, pm_message_t message)
879{ 896{
880 struct ads7846 *ts = dev_get_drvdata(&spi->dev); 897 struct ads7846 *ts = dev_get_drvdata(&spi->dev);
881 898
882 spin_lock_irq(&ts->lock); 899 mutex_lock(&ts->lock);
883 900
884 ts->is_suspended = 1; 901 if (!ts->suspended) {
885 ads7846_disable(ts);
886 902
887 spin_unlock_irq(&ts->lock); 903 if (!ts->disabled)
904 __ads7846_disable(ts);
888 905
889 if (device_may_wakeup(&ts->spi->dev)) 906 if (device_may_wakeup(&ts->spi->dev))
890 enable_irq_wake(ts->spi->irq); 907 enable_irq_wake(ts->spi->irq);
891 908
892 return 0; 909 ts->suspended = true;
910 }
911
912 mutex_unlock(&ts->lock);
893 913
914 return 0;
894} 915}
895 916
896static int ads7846_resume(struct spi_device *spi) 917static int ads7846_resume(struct spi_device *spi)
897{ 918{
898 struct ads7846 *ts = dev_get_drvdata(&spi->dev); 919 struct ads7846 *ts = dev_get_drvdata(&spi->dev);
899 920
900 if (device_may_wakeup(&ts->spi->dev)) 921 mutex_lock(&ts->lock);
901 disable_irq_wake(ts->spi->irq); 922
923 if (ts->suspended) {
902 924
903 spin_lock_irq(&ts->lock); 925 ts->suspended = false;
904 926
905 ts->is_suspended = 0; 927 if (device_may_wakeup(&ts->spi->dev))
906 ads7846_enable(ts); 928 disable_irq_wake(ts->spi->irq);
907 929
908 spin_unlock_irq(&ts->lock); 930 if (!ts->disabled)
931 __ads7846_enable(ts);
932 }
933
934 mutex_unlock(&ts->lock);
909 935
910 return 0; 936 return 0;
911} 937}
912 938
913static int __devinit setup_pendown(struct spi_device *spi, struct ads7846 *ts) 939static int __devinit ads7846_setup_pendown(struct spi_device *spi, struct ads7846 *ts)
914{ 940{
915 struct ads7846_platform_data *pdata = spi->dev.platform_data; 941 struct ads7846_platform_data *pdata = spi->dev.platform_data;
916 int err; 942 int err;
@@ -932,146 +958,40 @@ static int __devinit setup_pendown(struct spi_device *spi, struct ads7846 *ts)
932 err = gpio_request(pdata->gpio_pendown, "ads7846_pendown"); 958 err = gpio_request(pdata->gpio_pendown, "ads7846_pendown");
933 if (err) { 959 if (err) {
934 dev_err(&spi->dev, "failed to request pendown GPIO%d\n", 960 dev_err(&spi->dev, "failed to request pendown GPIO%d\n",
935 pdata->gpio_pendown); 961 pdata->gpio_pendown);
936 return err; 962 return err;
937 } 963 }
938 964
939 ts->gpio_pendown = pdata->gpio_pendown; 965 ts->gpio_pendown = pdata->gpio_pendown;
966
940 return 0; 967 return 0;
941} 968}
942 969
943static int __devinit ads7846_probe(struct spi_device *spi) 970/*
971 * Set up the transfers to read touchscreen state; this assumes we
972 * use formula #2 for pressure, not #3.
973 */
974static void __devinit ads7846_setup_spi_msg(struct ads7846 *ts,
975 const struct ads7846_platform_data *pdata)
944{ 976{
945 struct ads7846 *ts; 977 struct spi_message *m = &ts->msg[0];
946 struct ads7846_packet *packet; 978 struct spi_transfer *x = ts->xfer;
947 struct input_dev *input_dev; 979 struct ads7846_packet *packet = ts->packet;
948 const struct ads7846_platform_data *pdata = spi->dev.platform_data; 980 int vref = pdata->keep_vref_on;
949 struct spi_message *m;
950 struct spi_transfer *x;
951 unsigned long irq_flags;
952 int vref;
953 int err;
954
955 if (!spi->irq) {
956 dev_dbg(&spi->dev, "no IRQ?\n");
957 return -ENODEV;
958 }
959
960 if (!pdata) {
961 dev_dbg(&spi->dev, "no platform data?\n");
962 return -ENODEV;
963 }
964
965 /* don't exceed max specified sample rate */
966 if (spi->max_speed_hz > (125000 * SAMPLE_BITS)) {
967 dev_dbg(&spi->dev, "f(sample) %d KHz?\n",
968 (spi->max_speed_hz/SAMPLE_BITS)/1000);
969 return -EINVAL;
970 }
971
972 /* We'd set TX wordsize 8 bits and RX wordsize to 13 bits ... except
973 * that even if the hardware can do that, the SPI controller driver
974 * may not. So we stick to very-portable 8 bit words, both RX and TX.
975 */
976 spi->bits_per_word = 8;
977 spi->mode = SPI_MODE_0;
978 err = spi_setup(spi);
979 if (err < 0)
980 return err;
981
982 ts = kzalloc(sizeof(struct ads7846), GFP_KERNEL);
983 packet = kzalloc(sizeof(struct ads7846_packet), GFP_KERNEL);
984 input_dev = input_allocate_device();
985 if (!ts || !packet || !input_dev) {
986 err = -ENOMEM;
987 goto err_free_mem;
988 }
989
990 dev_set_drvdata(&spi->dev, ts);
991
992 ts->packet = packet;
993 ts->spi = spi;
994 ts->input = input_dev;
995 ts->vref_mv = pdata->vref_mv;
996 ts->swap_xy = pdata->swap_xy;
997
998 hrtimer_init(&ts->timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
999 ts->timer.function = ads7846_timer;
1000
1001 spin_lock_init(&ts->lock);
1002
1003 ts->model = pdata->model ? : 7846;
1004 ts->vref_delay_usecs = pdata->vref_delay_usecs ? : 100;
1005 ts->x_plate_ohms = pdata->x_plate_ohms ? : 400;
1006 ts->pressure_max = pdata->pressure_max ? : ~0;
1007
1008 if (pdata->filter != NULL) {
1009 if (pdata->filter_init != NULL) {
1010 err = pdata->filter_init(pdata, &ts->filter_data);
1011 if (err < 0)
1012 goto err_free_mem;
1013 }
1014 ts->filter = pdata->filter;
1015 ts->filter_cleanup = pdata->filter_cleanup;
1016 } else if (pdata->debounce_max) {
1017 ts->debounce_max = pdata->debounce_max;
1018 if (ts->debounce_max < 2)
1019 ts->debounce_max = 2;
1020 ts->debounce_tol = pdata->debounce_tol;
1021 ts->debounce_rep = pdata->debounce_rep;
1022 ts->filter = ads7846_debounce;
1023 ts->filter_data = ts;
1024 } else
1025 ts->filter = ads7846_no_filter;
1026
1027 err = setup_pendown(spi, ts);
1028 if (err)
1029 goto err_cleanup_filter;
1030
1031 if (pdata->penirq_recheck_delay_usecs)
1032 ts->penirq_recheck_delay_usecs =
1033 pdata->penirq_recheck_delay_usecs;
1034
1035 ts->wait_for_sync = pdata->wait_for_sync ? : null_wait_for_sync;
1036
1037 snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&spi->dev));
1038 snprintf(ts->name, sizeof(ts->name), "ADS%d Touchscreen", ts->model);
1039
1040 input_dev->name = ts->name;
1041 input_dev->phys = ts->phys;
1042 input_dev->dev.parent = &spi->dev;
1043
1044 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
1045 input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
1046 input_set_abs_params(input_dev, ABS_X,
1047 pdata->x_min ? : 0,
1048 pdata->x_max ? : MAX_12BIT,
1049 0, 0);
1050 input_set_abs_params(input_dev, ABS_Y,
1051 pdata->y_min ? : 0,
1052 pdata->y_max ? : MAX_12BIT,
1053 0, 0);
1054 input_set_abs_params(input_dev, ABS_PRESSURE,
1055 pdata->pressure_min, pdata->pressure_max, 0, 0);
1056
1057 vref = pdata->keep_vref_on;
1058 981
1059 if (ts->model == 7873) { 982 if (ts->model == 7873) {
1060 /* The AD7873 is almost identical to the ADS7846 983 /*
984 * The AD7873 is almost identical to the ADS7846
1061 * keep VREF off during differential/ratiometric 985 * keep VREF off during differential/ratiometric
1062 * conversion modes 986 * conversion modes.
1063 */ 987 */
1064 ts->model = 7846; 988 ts->model = 7846;
1065 vref = 0; 989 vref = 0;
1066 } 990 }
1067 991
1068 /* set up the transfers to read touchscreen state; this assumes we 992 ts->msg_count = 1;
1069 * use formula #2 for pressure, not #3.
1070 */
1071 m = &ts->msg[0];
1072 x = ts->xfer;
1073
1074 spi_message_init(m); 993 spi_message_init(m);
994 m->context = ts;
1075 995
1076 if (ts->model == 7845) { 996 if (ts->model == 7845) {
1077 packet->read_y_cmd[0] = READ_Y(vref); 997 packet->read_y_cmd[0] = READ_Y(vref);
@@ -1094,7 +1014,8 @@ static int __devinit ads7846_probe(struct spi_device *spi)
1094 spi_message_add_tail(x, m); 1014 spi_message_add_tail(x, m);
1095 } 1015 }
1096 1016
1097 /* the first sample after switching drivers can be low quality; 1017 /*
1018 * The first sample after switching drivers can be low quality;
1098 * optionally discard it, using a second one after the signals 1019 * optionally discard it, using a second one after the signals
1099 * have had enough time to stabilize. 1020 * have had enough time to stabilize.
1100 */ 1021 */
@@ -1112,11 +1033,10 @@ static int __devinit ads7846_probe(struct spi_device *spi)
1112 spi_message_add_tail(x, m); 1033 spi_message_add_tail(x, m);
1113 } 1034 }
1114 1035
1115 m->complete = ads7846_rx_val; 1036 ts->msg_count++;
1116 m->context = ts;
1117
1118 m++; 1037 m++;
1119 spi_message_init(m); 1038 spi_message_init(m);
1039 m->context = ts;
1120 1040
1121 if (ts->model == 7845) { 1041 if (ts->model == 7845) {
1122 x++; 1042 x++;
@@ -1156,13 +1076,12 @@ static int __devinit ads7846_probe(struct spi_device *spi)
1156 spi_message_add_tail(x, m); 1076 spi_message_add_tail(x, m);
1157 } 1077 }
1158 1078
1159 m->complete = ads7846_rx_val;
1160 m->context = ts;
1161
1162 /* turn y+ off, x- on; we'll use formula #2 */ 1079 /* turn y+ off, x- on; we'll use formula #2 */
1163 if (ts->model == 7846) { 1080 if (ts->model == 7846) {
1081 ts->msg_count++;
1164 m++; 1082 m++;
1165 spi_message_init(m); 1083 spi_message_init(m);
1084 m->context = ts;
1166 1085
1167 x++; 1086 x++;
1168 packet->read_z1 = READ_Z1(vref); 1087 packet->read_z1 = READ_Z1(vref);
@@ -1190,11 +1109,10 @@ static int __devinit ads7846_probe(struct spi_device *spi)
1190 spi_message_add_tail(x, m); 1109 spi_message_add_tail(x, m);
1191 } 1110 }
1192 1111
1193 m->complete = ads7846_rx_val; 1112 ts->msg_count++;
1194 m->context = ts;
1195
1196 m++; 1113 m++;
1197 spi_message_init(m); 1114 spi_message_init(m);
1115 m->context = ts;
1198 1116
1199 x++; 1117 x++;
1200 packet->read_z2 = READ_Z2(vref); 1118 packet->read_z2 = READ_Z2(vref);
@@ -1221,14 +1139,13 @@ static int __devinit ads7846_probe(struct spi_device *spi)
1221 x->len = 2; 1139 x->len = 2;
1222 spi_message_add_tail(x, m); 1140 spi_message_add_tail(x, m);
1223 } 1141 }
1224
1225 m->complete = ads7846_rx_val;
1226 m->context = ts;
1227 } 1142 }
1228 1143
1229 /* power down */ 1144 /* power down */
1145 ts->msg_count++;
1230 m++; 1146 m++;
1231 spi_message_init(m); 1147 spi_message_init(m);
1148 m->context = ts;
1232 1149
1233 if (ts->model == 7845) { 1150 if (ts->model == 7845) {
1234 x++; 1151 x++;
@@ -1251,11 +1168,119 @@ static int __devinit ads7846_probe(struct spi_device *spi)
1251 1168
1252 CS_CHANGE(*x); 1169 CS_CHANGE(*x);
1253 spi_message_add_tail(x, m); 1170 spi_message_add_tail(x, m);
1171}
1254 1172
1255 m->complete = ads7846_rx; 1173static int __devinit ads7846_probe(struct spi_device *spi)
1256 m->context = ts; 1174{
1175 struct ads7846 *ts;
1176 struct ads7846_packet *packet;
1177 struct input_dev *input_dev;
1178 struct ads7846_platform_data *pdata = spi->dev.platform_data;
1179 unsigned long irq_flags;
1180 int err;
1181
1182 if (!spi->irq) {
1183 dev_dbg(&spi->dev, "no IRQ?\n");
1184 return -ENODEV;
1185 }
1186
1187 if (!pdata) {
1188 dev_dbg(&spi->dev, "no platform data?\n");
1189 return -ENODEV;
1190 }
1191
1192 /* don't exceed max specified sample rate */
1193 if (spi->max_speed_hz > (125000 * SAMPLE_BITS)) {
1194 dev_dbg(&spi->dev, "f(sample) %d KHz?\n",
1195 (spi->max_speed_hz/SAMPLE_BITS)/1000);
1196 return -EINVAL;
1197 }
1198
1199 /* We'd set TX word size 8 bits and RX word size to 13 bits ... except
1200 * that even if the hardware can do that, the SPI controller driver
1201 * may not. So we stick to very-portable 8 bit words, both RX and TX.
1202 */
1203 spi->bits_per_word = 8;
1204 spi->mode = SPI_MODE_0;
1205 err = spi_setup(spi);
1206 if (err < 0)
1207 return err;
1257 1208
1258 ts->last_msg = m; 1209 ts = kzalloc(sizeof(struct ads7846), GFP_KERNEL);
1210 packet = kzalloc(sizeof(struct ads7846_packet), GFP_KERNEL);
1211 input_dev = input_allocate_device();
1212 if (!ts || !packet || !input_dev) {
1213 err = -ENOMEM;
1214 goto err_free_mem;
1215 }
1216
1217 dev_set_drvdata(&spi->dev, ts);
1218
1219 ts->packet = packet;
1220 ts->spi = spi;
1221 ts->input = input_dev;
1222 ts->vref_mv = pdata->vref_mv;
1223 ts->swap_xy = pdata->swap_xy;
1224
1225 mutex_init(&ts->lock);
1226 init_waitqueue_head(&ts->wait);
1227
1228 ts->model = pdata->model ? : 7846;
1229 ts->vref_delay_usecs = pdata->vref_delay_usecs ? : 100;
1230 ts->x_plate_ohms = pdata->x_plate_ohms ? : 400;
1231 ts->pressure_max = pdata->pressure_max ? : ~0;
1232
1233 if (pdata->filter != NULL) {
1234 if (pdata->filter_init != NULL) {
1235 err = pdata->filter_init(pdata, &ts->filter_data);
1236 if (err < 0)
1237 goto err_free_mem;
1238 }
1239 ts->filter = pdata->filter;
1240 ts->filter_cleanup = pdata->filter_cleanup;
1241 } else if (pdata->debounce_max) {
1242 ts->debounce_max = pdata->debounce_max;
1243 if (ts->debounce_max < 2)
1244 ts->debounce_max = 2;
1245 ts->debounce_tol = pdata->debounce_tol;
1246 ts->debounce_rep = pdata->debounce_rep;
1247 ts->filter = ads7846_debounce_filter;
1248 ts->filter_data = ts;
1249 } else {
1250 ts->filter = ads7846_no_filter;
1251 }
1252
1253 err = ads7846_setup_pendown(spi, ts);
1254 if (err)
1255 goto err_cleanup_filter;
1256
1257 if (pdata->penirq_recheck_delay_usecs)
1258 ts->penirq_recheck_delay_usecs =
1259 pdata->penirq_recheck_delay_usecs;
1260
1261 ts->wait_for_sync = pdata->wait_for_sync ? : null_wait_for_sync;
1262
1263 snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&spi->dev));
1264 snprintf(ts->name, sizeof(ts->name), "ADS%d Touchscreen", ts->model);
1265
1266 input_dev->name = ts->name;
1267 input_dev->phys = ts->phys;
1268 input_dev->dev.parent = &spi->dev;
1269
1270 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
1271 input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
1272 input_set_abs_params(input_dev, ABS_X,
1273 pdata->x_min ? : 0,
1274 pdata->x_max ? : MAX_12BIT,
1275 0, 0);
1276 input_set_abs_params(input_dev, ABS_Y,
1277 pdata->y_min ? : 0,
1278 pdata->y_max ? : MAX_12BIT,
1279 0, 0);
1280 input_set_abs_params(input_dev, ABS_PRESSURE,
1281 pdata->pressure_min, pdata->pressure_max, 0, 0);
1282
1283 ads7846_setup_spi_msg(ts, pdata);
1259 1284
1260 ts->reg = regulator_get(&spi->dev, "vcc"); 1285 ts->reg = regulator_get(&spi->dev, "vcc");
1261 if (IS_ERR(ts->reg)) { 1286 if (IS_ERR(ts->reg)) {
@@ -1271,16 +1296,17 @@ static int __devinit ads7846_probe(struct spi_device *spi)
1271 } 1296 }
1272 1297
1273 irq_flags = pdata->irq_flags ? : IRQF_TRIGGER_FALLING; 1298 irq_flags = pdata->irq_flags ? : IRQF_TRIGGER_FALLING;
1299 irq_flags |= IRQF_ONESHOT;
1274 1300
1275 err = request_irq(spi->irq, ads7846_irq, irq_flags, 1301 err = request_threaded_irq(spi->irq, ads7846_hard_irq, ads7846_irq,
1276 spi->dev.driver->name, ts); 1302 irq_flags, spi->dev.driver->name, ts);
1277
1278 if (err && !pdata->irq_flags) { 1303 if (err && !pdata->irq_flags) {
1279 dev_info(&spi->dev, 1304 dev_info(&spi->dev,
1280 "trying pin change workaround on irq %d\n", spi->irq); 1305 "trying pin change workaround on irq %d\n", spi->irq);
1281 err = request_irq(spi->irq, ads7846_irq, 1306 irq_flags |= IRQF_TRIGGER_RISING;
1282 IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, 1307 err = request_threaded_irq(spi->irq,
1283 spi->dev.driver->name, ts); 1308 ads7846_hard_irq, ads7846_irq,
1309 irq_flags, spi->dev.driver->name, ts);
1284 } 1310 }
1285 1311
1286 if (err) { 1312 if (err) {
@@ -1294,7 +1320,8 @@ static int __devinit ads7846_probe(struct spi_device *spi)
1294 1320
1295 dev_info(&spi->dev, "touchscreen, irq %d\n", spi->irq); 1321 dev_info(&spi->dev, "touchscreen, irq %d\n", spi->irq);
1296 1322
1297 /* take a first sample, leaving nPENIRQ active and vREF off; avoid 1323 /*
1324 * Take a first sample, leaving nPENIRQ active and vREF off; avoid
1298 * the touchscreen, in case it's not connected. 1325 * the touchscreen, in case it's not connected.
1299 */ 1326 */
1300 if (ts->model == 7845) 1327 if (ts->model == 7845)
@@ -1340,20 +1367,18 @@ static int __devinit ads7846_probe(struct spi_device *spi)
1340 1367
1341static int __devexit ads7846_remove(struct spi_device *spi) 1368static int __devexit ads7846_remove(struct spi_device *spi)
1342{ 1369{
1343 struct ads7846 *ts = dev_get_drvdata(&spi->dev); 1370 struct ads7846 *ts = dev_get_drvdata(&spi->dev);
1344 1371
1345 device_init_wakeup(&spi->dev, false); 1372 device_init_wakeup(&spi->dev, false);
1346 1373
1347 ads784x_hwmon_unregister(spi, ts);
1348 input_unregister_device(ts->input);
1349
1350 ads7846_suspend(spi, PMSG_SUSPEND);
1351
1352 sysfs_remove_group(&spi->dev.kobj, &ads784x_attr_group); 1374 sysfs_remove_group(&spi->dev.kobj, &ads784x_attr_group);
1353 1375
1376 ads7846_disable(ts);
1354 free_irq(ts->spi->irq, ts); 1377 free_irq(ts->spi->irq, ts);
1355 /* suspend left the IRQ disabled */ 1378
1356 enable_irq(ts->spi->irq); 1379 input_unregister_device(ts->input);
1380
1381 ads784x_hwmon_unregister(spi, ts);
1357 1382
1358 regulator_disable(ts->reg); 1383 regulator_disable(ts->reg);
1359 regulator_put(ts->reg); 1384 regulator_put(ts->reg);
@@ -1368,6 +1393,7 @@ static int __devexit ads7846_remove(struct spi_device *spi)
1368 kfree(ts); 1393 kfree(ts);
1369 1394
1370 dev_dbg(&spi->dev, "unregistered touchscreen\n"); 1395 dev_dbg(&spi->dev, "unregistered touchscreen\n");
1396
1371 return 0; 1397 return 0;
1372} 1398}
1373 1399
diff --git a/drivers/input/touchscreen/bu21013_ts.c b/drivers/input/touchscreen/bu21013_ts.c
new file mode 100644
index 000000000000..ccde58602563
--- /dev/null
+++ b/drivers/input/touchscreen/bu21013_ts.c
@@ -0,0 +1,648 @@
1/*
2 * Copyright (C) ST-Ericsson SA 2010
3 * Author: Naveen Kumar G <naveen.gaddipati@stericsson.com> for ST-Ericsson
4 * License terms:GNU General Public License (GPL) version 2
5 */
6
7#include <linux/kernel.h>
8#include <linux/delay.h>
9#include <linux/interrupt.h>
10#include <linux/i2c.h>
11#include <linux/workqueue.h>
12#include <linux/input.h>
13#include <linux/input/bu21013.h>
14#include <linux/slab.h>
15
16#define PEN_DOWN_INTR 0
17#define MAX_FINGERS 2
18#define RESET_DELAY 30
19#define PENUP_TIMEOUT (10)
20#define DELTA_MIN 16
21#define MASK_BITS 0x03
22#define SHIFT_8 8
23#define SHIFT_2 2
24#define LENGTH_OF_BUFFER 11
25#define I2C_RETRY_COUNT 5
26
27#define BU21013_SENSORS_BTN_0_7_REG 0x70
28#define BU21013_SENSORS_BTN_8_15_REG 0x71
29#define BU21013_SENSORS_BTN_16_23_REG 0x72
30#define BU21013_X1_POS_MSB_REG 0x73
31#define BU21013_X1_POS_LSB_REG 0x74
32#define BU21013_Y1_POS_MSB_REG 0x75
33#define BU21013_Y1_POS_LSB_REG 0x76
34#define BU21013_X2_POS_MSB_REG 0x77
35#define BU21013_X2_POS_LSB_REG 0x78
36#define BU21013_Y2_POS_MSB_REG 0x79
37#define BU21013_Y2_POS_LSB_REG 0x7A
38#define BU21013_INT_CLR_REG 0xE8
39#define BU21013_INT_MODE_REG 0xE9
40#define BU21013_GAIN_REG 0xEA
41#define BU21013_OFFSET_MODE_REG 0xEB
42#define BU21013_XY_EDGE_REG 0xEC
43#define BU21013_RESET_REG 0xED
44#define BU21013_CALIB_REG 0xEE
45#define BU21013_DONE_REG 0xEF
46#define BU21013_SENSOR_0_7_REG 0xF0
47#define BU21013_SENSOR_8_15_REG 0xF1
48#define BU21013_SENSOR_16_23_REG 0xF2
49#define BU21013_POS_MODE1_REG 0xF3
50#define BU21013_POS_MODE2_REG 0xF4
51#define BU21013_CLK_MODE_REG 0xF5
52#define BU21013_IDLE_REG 0xFA
53#define BU21013_FILTER_REG 0xFB
54#define BU21013_TH_ON_REG 0xFC
55#define BU21013_TH_OFF_REG 0xFD
56
57
58#define BU21013_RESET_ENABLE 0x01
59
60#define BU21013_SENSORS_EN_0_7 0x3F
61#define BU21013_SENSORS_EN_8_15 0xFC
62#define BU21013_SENSORS_EN_16_23 0x1F
63
64#define BU21013_POS_MODE1_0 0x02
65#define BU21013_POS_MODE1_1 0x04
66#define BU21013_POS_MODE1_2 0x08
67
68#define BU21013_POS_MODE2_ZERO 0x01
69#define BU21013_POS_MODE2_AVG1 0x02
70#define BU21013_POS_MODE2_AVG2 0x04
71#define BU21013_POS_MODE2_EN_XY 0x08
72#define BU21013_POS_MODE2_EN_RAW 0x10
73#define BU21013_POS_MODE2_MULTI 0x80
74
75#define BU21013_CLK_MODE_DIV 0x01
76#define BU21013_CLK_MODE_EXT 0x02
77#define BU21013_CLK_MODE_CALIB 0x80
78
79#define BU21013_IDLET_0 0x01
80#define BU21013_IDLET_1 0x02
81#define BU21013_IDLET_2 0x04
82#define BU21013_IDLET_3 0x08
83#define BU21013_IDLE_INTERMIT_EN 0x10
84
85#define BU21013_DELTA_0_6 0x7F
86#define BU21013_FILTER_EN 0x80
87
88#define BU21013_INT_MODE_LEVEL 0x00
89#define BU21013_INT_MODE_EDGE 0x01
90
91#define BU21013_GAIN_0 0x01
92#define BU21013_GAIN_1 0x02
93#define BU21013_GAIN_2 0x04
94
95#define BU21013_OFFSET_MODE_DEFAULT 0x00
96#define BU21013_OFFSET_MODE_MOVE 0x01
97#define BU21013_OFFSET_MODE_DISABLE 0x02
98
99#define BU21013_TH_ON_0 0x01
100#define BU21013_TH_ON_1 0x02
101#define BU21013_TH_ON_2 0x04
102#define BU21013_TH_ON_3 0x08
103#define BU21013_TH_ON_4 0x10
104#define BU21013_TH_ON_5 0x20
105#define BU21013_TH_ON_6 0x40
106#define BU21013_TH_ON_7 0x80
107#define BU21013_TH_ON_MAX 0xFF
108
109#define BU21013_TH_OFF_0 0x01
110#define BU21013_TH_OFF_1 0x02
111#define BU21013_TH_OFF_2 0x04
112#define BU21013_TH_OFF_3 0x08
113#define BU21013_TH_OFF_4 0x10
114#define BU21013_TH_OFF_5 0x20
115#define BU21013_TH_OFF_6 0x40
116#define BU21013_TH_OFF_7 0x80
117#define BU21013_TH_OFF_MAX 0xFF
118
119#define BU21013_X_EDGE_0 0x01
120#define BU21013_X_EDGE_1 0x02
121#define BU21013_X_EDGE_2 0x04
122#define BU21013_X_EDGE_3 0x08
123#define BU21013_Y_EDGE_0 0x10
124#define BU21013_Y_EDGE_1 0x20
125#define BU21013_Y_EDGE_2 0x40
126#define BU21013_Y_EDGE_3 0x80
127
128#define BU21013_DONE 0x01
129#define BU21013_NUMBER_OF_X_SENSORS (6)
130#define BU21013_NUMBER_OF_Y_SENSORS (11)
131
132#define DRIVER_TP "bu21013_tp"
133
134/**
135 * struct bu21013_ts_data - touch panel data structure
136 * @client: pointer to the i2c client
137 * @wait: variable to wait_queue_head_t structure
138 * @touch_stopped: touch stop flag
139 * @chip: pointer to the touch panel controller
140 * @in_dev: pointer to the input device structure
141 * @intr_pin: interrupt pin value
142 *
143 * Touch panel device data structure
144 */
145struct bu21013_ts_data {
146 struct i2c_client *client;
147 wait_queue_head_t wait;
148 bool touch_stopped;
149 const struct bu21013_platform_device *chip;
150 struct input_dev *in_dev;
151 unsigned int intr_pin;
152};
153
154/**
155 * bu21013_read_block_data(): read the touch co-ordinates
156 * @data: bu21013_ts_data structure pointer
157 * @buf: byte pointer
158 *
159 * Read the touch co-ordinates using i2c read block into buffer
160 * and returns integer.
161 */
162static int bu21013_read_block_data(struct bu21013_ts_data *data, u8 *buf)
163{
164 int ret, i;
165
166 for (i = 0; i < I2C_RETRY_COUNT; i++) {
167 ret = i2c_smbus_read_i2c_block_data
168 (data->client, BU21013_SENSORS_BTN_0_7_REG,
169 LENGTH_OF_BUFFER, buf);
170 if (ret == LENGTH_OF_BUFFER)
171 return 0;
172 }
173 return -EINVAL;
174}
175
176/**
177 * bu21013_do_touch_report(): Get the touch co-ordinates
178 * @data: bu21013_ts_data structure pointer
179 *
180 * Get the touch co-ordinates from touch sensor registers and writes
181 * into device structure and returns integer.
182 */
183static int bu21013_do_touch_report(struct bu21013_ts_data *data)
184{
185 u8 buf[LENGTH_OF_BUFFER];
186 unsigned int pos_x[2], pos_y[2];
187 bool has_x_sensors, has_y_sensors;
188 int finger_down_count = 0;
189 int i;
190
191 if (data == NULL)
192 return -EINVAL;
193
194 if (bu21013_read_block_data(data, buf) < 0)
195 return -EINVAL;
196
197 has_x_sensors = hweight32(buf[0] & BU21013_SENSORS_EN_0_7);
198 has_y_sensors = hweight32(((buf[1] & BU21013_SENSORS_EN_8_15) |
199 ((buf[2] & BU21013_SENSORS_EN_16_23) << SHIFT_8)) >> SHIFT_2);
200 if (!has_x_sensors || !has_y_sensors)
201 return 0;
202
203 for (i = 0; i < MAX_FINGERS; i++) {
204 const u8 *p = &buf[4 * i + 3];
205 unsigned int x = p[0] << SHIFT_2 | (p[1] & MASK_BITS);
206 unsigned int y = p[2] << SHIFT_2 | (p[3] & MASK_BITS);
207 if (x == 0 || y == 0)
208 continue;
209 pos_x[finger_down_count] = x;
210 pos_y[finger_down_count] = y;
211 finger_down_count++;
212 }
213
214 if (finger_down_count) {
215 if (finger_down_count == 2 &&
216 (abs(pos_x[0] - pos_x[1]) < DELTA_MIN ||
217 abs(pos_y[0] - pos_y[1]) < DELTA_MIN)) {
218 return 0;
219 }
220
221 for (i = 0; i < finger_down_count; i++) {
222 if (data->chip->x_flip)
223 pos_x[i] = data->chip->touch_x_max - pos_x[i];
224 if (data->chip->y_flip)
225 pos_y[i] = data->chip->touch_y_max - pos_y[i];
226
227 input_report_abs(data->in_dev,
228 ABS_MT_POSITION_X, pos_x[i]);
229 input_report_abs(data->in_dev,
230 ABS_MT_POSITION_Y, pos_y[i]);
231 input_mt_sync(data->in_dev);
232 }
233 } else
234 input_mt_sync(data->in_dev);
235
236 input_sync(data->in_dev);
237
238 return 0;
239}
240/**
241 * bu21013_gpio_irq() - gpio thread function for touch interrupt
242 * @irq: irq value
243 * @device_data: void pointer
244 *
245 * This gpio thread function for touch interrupt
246 * and returns irqreturn_t.
247 */
248static irqreturn_t bu21013_gpio_irq(int irq, void *device_data)
249{
250 struct bu21013_ts_data *data = device_data;
251 struct i2c_client *i2c = data->client;
252 int retval;
253
254 do {
255 retval = bu21013_do_touch_report(data);
256 if (retval < 0) {
257 dev_err(&i2c->dev, "bu21013_do_touch_report failed\n");
258 return IRQ_NONE;
259 }
260
261 data->intr_pin = data->chip->irq_read_val();
262 if (data->intr_pin == PEN_DOWN_INTR)
263 wait_event_timeout(data->wait, data->touch_stopped,
264 msecs_to_jiffies(2));
265 } while (!data->intr_pin && !data->touch_stopped);
266
267 return IRQ_HANDLED;
268}
269
270/**
271 * bu21013_init_chip() - power on sequence for the bu21013 controller
272 * @data: device structure pointer
273 *
274 * This function is used to power on
275 * the bu21013 controller and returns integer.
276 */
277static int bu21013_init_chip(struct bu21013_ts_data *data)
278{
279 int retval;
280 struct i2c_client *i2c = data->client;
281
282 retval = i2c_smbus_write_byte_data(i2c, BU21013_RESET_REG,
283 BU21013_RESET_ENABLE);
284 if (retval < 0) {
285 dev_err(&i2c->dev, "BU21013_RESET reg write failed\n");
286 return retval;
287 }
288 msleep(RESET_DELAY);
289
290 retval = i2c_smbus_write_byte_data(i2c, BU21013_SENSOR_0_7_REG,
291 BU21013_SENSORS_EN_0_7);
292 if (retval < 0) {
293 dev_err(&i2c->dev, "BU21013_SENSOR_0_7 reg write failed\n");
294 return retval;
295 }
296
297 retval = i2c_smbus_write_byte_data(i2c, BU21013_SENSOR_8_15_REG,
298 BU21013_SENSORS_EN_8_15);
299 if (retval < 0) {
300 dev_err(&i2c->dev, "BU21013_SENSOR_8_15 reg write failed\n");
301 return retval;
302 }
303
304 retval = i2c_smbus_write_byte_data(i2c, BU21013_SENSOR_16_23_REG,
305 BU21013_SENSORS_EN_16_23);
306 if (retval < 0) {
307 dev_err(&i2c->dev, "BU21013_SENSOR_16_23 reg write failed\n");
308 return retval;
309 }
310
311 retval = i2c_smbus_write_byte_data(i2c, BU21013_POS_MODE1_REG,
312 (BU21013_POS_MODE1_0 | BU21013_POS_MODE1_1));
313 if (retval < 0) {
314 dev_err(&i2c->dev, "BU21013_POS_MODE1 reg write failed\n");
315 return retval;
316 }
317
318 retval = i2c_smbus_write_byte_data(i2c, BU21013_POS_MODE2_REG,
319 (BU21013_POS_MODE2_ZERO | BU21013_POS_MODE2_AVG1 |
320 BU21013_POS_MODE2_AVG2 | BU21013_POS_MODE2_EN_RAW |
321 BU21013_POS_MODE2_MULTI));
322 if (retval < 0) {
323 dev_err(&i2c->dev, "BU21013_POS_MODE2 reg write failed\n");
324 return retval;
325 }
326
327 if (data->chip->ext_clk)
328 retval = i2c_smbus_write_byte_data(i2c, BU21013_CLK_MODE_REG,
329 (BU21013_CLK_MODE_EXT | BU21013_CLK_MODE_CALIB));
330 else
331 retval = i2c_smbus_write_byte_data(i2c, BU21013_CLK_MODE_REG,
332 (BU21013_CLK_MODE_DIV | BU21013_CLK_MODE_CALIB));
333 if (retval < 0) {
334 dev_err(&i2c->dev, "BU21013_CLK_MODE reg write failed\n");
335 return retval;
336 }
337
338 retval = i2c_smbus_write_byte_data(i2c, BU21013_IDLE_REG,
339 (BU21013_IDLET_0 | BU21013_IDLE_INTERMIT_EN));
340 if (retval < 0) {
341 dev_err(&i2c->dev, "BU21013_IDLE reg write failed\n");
342 return retval;
343 }
344
345 retval = i2c_smbus_write_byte_data(i2c, BU21013_INT_MODE_REG,
346 BU21013_INT_MODE_LEVEL);
347 if (retval < 0) {
348 dev_err(&i2c->dev, "BU21013_INT_MODE reg write failed\n");
349 return retval;
350 }
351
352 retval = i2c_smbus_write_byte_data(i2c, BU21013_FILTER_REG,
353 (BU21013_DELTA_0_6 |
354 BU21013_FILTER_EN));
355 if (retval < 0) {
356 dev_err(&i2c->dev, "BU21013_FILTER reg write failed\n");
357 return retval;
358 }
359
360 retval = i2c_smbus_write_byte_data(i2c, BU21013_TH_ON_REG,
361 BU21013_TH_ON_5);
362 if (retval < 0) {
363 dev_err(&i2c->dev, "BU21013_TH_ON reg write failed\n");
364 return retval;
365 }
366
367 retval = i2c_smbus_write_byte_data(i2c, BU21013_TH_OFF_REG,
368 BU21013_TH_OFF_4 || BU21013_TH_OFF_3);
369 if (retval < 0) {
370 dev_err(&i2c->dev, "BU21013_TH_OFF reg write failed\n");
371 return retval;
372 }
373
374 retval = i2c_smbus_write_byte_data(i2c, BU21013_GAIN_REG,
375 (BU21013_GAIN_0 | BU21013_GAIN_1));
376 if (retval < 0) {
377 dev_err(&i2c->dev, "BU21013_GAIN reg write failed\n");
378 return retval;
379 }
380
381 retval = i2c_smbus_write_byte_data(i2c, BU21013_OFFSET_MODE_REG,
382 BU21013_OFFSET_MODE_DEFAULT);
383 if (retval < 0) {
384 dev_err(&i2c->dev, "BU21013_OFFSET_MODE reg write failed\n");
385 return retval;
386 }
387
388 retval = i2c_smbus_write_byte_data(i2c, BU21013_XY_EDGE_REG,
389 (BU21013_X_EDGE_0 | BU21013_X_EDGE_2 |
390 BU21013_Y_EDGE_1 | BU21013_Y_EDGE_3));
391 if (retval < 0) {
392 dev_err(&i2c->dev, "BU21013_XY_EDGE reg write failed\n");
393 return retval;
394 }
395
396 retval = i2c_smbus_write_byte_data(i2c, BU21013_DONE_REG,
397 BU21013_DONE);
398 if (retval < 0) {
399 dev_err(&i2c->dev, "BU21013_REG_DONE reg write failed\n");
400 return retval;
401 }
402
403 return 0;
404}
405
406/**
407 * bu21013_free_irq() - frees IRQ registered for touchscreen
408 * @bu21013_data: device structure pointer
409 *
410 * This function signals interrupt thread to stop processing and
411 * frees interrupt.
412 */
413static void bu21013_free_irq(struct bu21013_ts_data *bu21013_data)
414{
415 bu21013_data->touch_stopped = true;
416 wake_up(&bu21013_data->wait);
417 free_irq(bu21013_data->chip->irq, bu21013_data);
418}
419
420/**
421 * bu21013_probe() - initializes the i2c-client touchscreen driver
422 * @client: i2c client structure pointer
423 * @id: i2c device id pointer
424 *
425 * This function used to initializes the i2c-client touchscreen
426 * driver and returns integer.
427 */
428static int __devinit bu21013_probe(struct i2c_client *client,
429 const struct i2c_device_id *id)
430{
431 struct bu21013_ts_data *bu21013_data;
432 struct input_dev *in_dev;
433 const struct bu21013_platform_device *pdata =
434 client->dev.platform_data;
435 int error;
436
437 if (!i2c_check_functionality(client->adapter,
438 I2C_FUNC_SMBUS_BYTE_DATA)) {
439 dev_err(&client->dev, "i2c smbus byte data not supported\n");
440 return -EIO;
441 }
442
443 if (!pdata) {
444 dev_err(&client->dev, "platform data not defined\n");
445 return -EINVAL;
446 }
447
448 bu21013_data = kzalloc(sizeof(struct bu21013_ts_data), GFP_KERNEL);
449 in_dev = input_allocate_device();
450 if (!bu21013_data || !in_dev) {
451 dev_err(&client->dev, "device memory alloc failed\n");
452 error = -ENOMEM;
453 goto err_free_mem;
454 }
455
456 bu21013_data->in_dev = in_dev;
457 bu21013_data->chip = pdata;
458 bu21013_data->client = client;
459 bu21013_data->touch_stopped = false;
460 init_waitqueue_head(&bu21013_data->wait);
461
462 /* configure the gpio pins */
463 if (pdata->cs_en) {
464 error = pdata->cs_en(pdata->cs_pin);
465 if (error < 0) {
466 dev_err(&client->dev, "chip init failed\n");
467 goto err_free_mem;
468 }
469 }
470
471 /* configure the touch panel controller */
472 error = bu21013_init_chip(bu21013_data);
473 if (error) {
474 dev_err(&client->dev, "error in bu21013 config\n");
475 goto err_cs_disable;
476 }
477
478 /* register the device to input subsystem */
479 in_dev->name = DRIVER_TP;
480 in_dev->id.bustype = BUS_I2C;
481 in_dev->dev.parent = &client->dev;
482
483 __set_bit(EV_SYN, in_dev->evbit);
484 __set_bit(EV_KEY, in_dev->evbit);
485 __set_bit(EV_ABS, in_dev->evbit);
486
487 input_set_abs_params(in_dev, ABS_MT_POSITION_X, 0,
488 pdata->x_max_res, 0, 0);
489 input_set_abs_params(in_dev, ABS_MT_POSITION_Y, 0,
490 pdata->y_max_res, 0, 0);
491 input_set_drvdata(in_dev, bu21013_data);
492
493 error = request_threaded_irq(pdata->irq, NULL, bu21013_gpio_irq,
494 IRQF_TRIGGER_FALLING | IRQF_SHARED,
495 DRIVER_TP, bu21013_data);
496 if (error) {
497 dev_err(&client->dev, "request irq %d failed\n", pdata->irq);
498 goto err_cs_disable;
499 }
500
501 error = input_register_device(in_dev);
502 if (error) {
503 dev_err(&client->dev, "failed to register input device\n");
504 goto err_free_irq;
505 }
506
507 device_init_wakeup(&client->dev, pdata->wakeup);
508 i2c_set_clientdata(client, bu21013_data);
509
510 return 0;
511
512err_free_irq:
513 bu21013_free_irq(bu21013_data);
514err_cs_disable:
515 pdata->cs_dis(pdata->cs_pin);
516err_free_mem:
517 input_free_device(bu21013_data->in_dev);
518 kfree(bu21013_data);
519
520 return error;
521}
522/**
523 * bu21013_remove() - removes the i2c-client touchscreen driver
524 * @client: i2c client structure pointer
525 *
526 * This function uses to remove the i2c-client
527 * touchscreen driver and returns integer.
528 */
529static int __devexit bu21013_remove(struct i2c_client *client)
530{
531 struct bu21013_ts_data *bu21013_data = i2c_get_clientdata(client);
532
533 bu21013_free_irq(bu21013_data);
534
535 bu21013_data->chip->cs_dis(bu21013_data->chip->cs_pin);
536
537 input_unregister_device(bu21013_data->in_dev);
538 kfree(bu21013_data);
539
540 device_init_wakeup(&client->dev, false);
541
542 return 0;
543}
544
545#ifdef CONFIG_PM
546/**
547 * bu21013_suspend() - suspend the touch screen controller
548 * @dev: pointer to device structure
549 *
550 * This function is used to suspend the
551 * touch panel controller and returns integer
552 */
553static int bu21013_suspend(struct device *dev)
554{
555 struct bu21013_ts_data *bu21013_data = dev_get_drvdata(dev);
556 struct i2c_client *client = bu21013_data->client;
557
558 bu21013_data->touch_stopped = true;
559 if (device_may_wakeup(&client->dev))
560 enable_irq_wake(bu21013_data->chip->irq);
561 else
562 disable_irq(bu21013_data->chip->irq);
563
564 return 0;
565}
566
567/**
568 * bu21013_resume() - resume the touch screen controller
569 * @dev: pointer to device structure
570 *
571 * This function is used to resume the touch panel
572 * controller and returns integer.
573 */
574static int bu21013_resume(struct device *dev)
575{
576 struct bu21013_ts_data *bu21013_data = dev_get_drvdata(dev);
577 struct i2c_client *client = bu21013_data->client;
578 int retval;
579
580 retval = bu21013_init_chip(bu21013_data);
581 if (retval < 0) {
582 dev_err(&client->dev, "bu21013 controller config failed\n");
583 return retval;
584 }
585
586 bu21013_data->touch_stopped = false;
587
588 if (device_may_wakeup(&client->dev))
589 disable_irq_wake(bu21013_data->chip->irq);
590 else
591 enable_irq(bu21013_data->chip->irq);
592
593 return 0;
594}
595
596static const struct dev_pm_ops bu21013_dev_pm_ops = {
597 .suspend = bu21013_suspend,
598 .resume = bu21013_resume,
599};
600#endif
601
602static const struct i2c_device_id bu21013_id[] = {
603 { DRIVER_TP, 0 },
604 { }
605};
606MODULE_DEVICE_TABLE(i2c, bu21013_id);
607
608static struct i2c_driver bu21013_driver = {
609 .driver = {
610 .name = DRIVER_TP,
611 .owner = THIS_MODULE,
612#ifdef CONFIG_PM
613 .pm = &bu21013_dev_pm_ops,
614#endif
615 },
616 .probe = bu21013_probe,
617 .remove = __devexit_p(bu21013_remove),
618 .id_table = bu21013_id,
619};
620
621/**
622 * bu21013_init() - initializes the bu21013 touchscreen driver
623 *
624 * This function used to initializes the bu21013
625 * touchscreen driver and returns integer.
626 */
627static int __init bu21013_init(void)
628{
629 return i2c_add_driver(&bu21013_driver);
630}
631
632/**
633 * bu21013_exit() - de-initializes the bu21013 touchscreen driver
634 *
635 * This function uses to de-initializes the bu21013
636 * touchscreen driver and returns none.
637 */
638static void __exit bu21013_exit(void)
639{
640 i2c_del_driver(&bu21013_driver);
641}
642
643module_init(bu21013_init);
644module_exit(bu21013_exit);
645
646MODULE_LICENSE("GPL v2");
647MODULE_AUTHOR("Naveen Kumar G <naveen.gaddipati@stericsson.com>");
648MODULE_DESCRIPTION("bu21013 touch screen controller driver");
diff --git a/drivers/input/touchscreen/cy8ctmg110_ts.c b/drivers/input/touchscreen/cy8ctmg110_ts.c
index 5ec0946938fe..d0c3a7229adf 100644
--- a/drivers/input/touchscreen/cy8ctmg110_ts.c
+++ b/drivers/input/touchscreen/cy8ctmg110_ts.c
@@ -206,9 +206,9 @@ static int __devinit cy8ctmg110_probe(struct i2c_client *client,
206 input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); 206 input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
207 207
208 input_set_abs_params(input_dev, ABS_X, 208 input_set_abs_params(input_dev, ABS_X,
209 CY8CTMG110_X_MIN, CY8CTMG110_X_MAX, 0, 0); 209 CY8CTMG110_X_MIN, CY8CTMG110_X_MAX, 4, 0);
210 input_set_abs_params(input_dev, ABS_Y, 210 input_set_abs_params(input_dev, ABS_Y,
211 CY8CTMG110_Y_MIN, CY8CTMG110_Y_MAX, 0, 0); 211 CY8CTMG110_Y_MIN, CY8CTMG110_Y_MAX, 4, 0);
212 212
213 if (ts->reset_pin) { 213 if (ts->reset_pin) {
214 err = gpio_request(ts->reset_pin, NULL); 214 err = gpio_request(ts->reset_pin, NULL);
diff --git a/drivers/input/touchscreen/hp680_ts_input.c b/drivers/input/touchscreen/hp680_ts_input.c
index a89700e7ace4..498bd62af09a 100644
--- a/drivers/input/touchscreen/hp680_ts_input.c
+++ b/drivers/input/touchscreen/hp680_ts_input.c
@@ -107,8 +107,7 @@ static int __init hp680_ts_init(void)
107 return 0; 107 return 0;
108 108
109 fail2: free_irq(HP680_TS_IRQ, NULL); 109 fail2: free_irq(HP680_TS_IRQ, NULL);
110 cancel_delayed_work(&work); 110 cancel_delayed_work_sync(&work);
111 flush_scheduled_work();
112 fail1: input_free_device(hp680_ts_dev); 111 fail1: input_free_device(hp680_ts_dev);
113 return err; 112 return err;
114} 113}
@@ -116,8 +115,7 @@ static int __init hp680_ts_init(void)
116static void __exit hp680_ts_exit(void) 115static void __exit hp680_ts_exit(void)
117{ 116{
118 free_irq(HP680_TS_IRQ, NULL); 117 free_irq(HP680_TS_IRQ, NULL);
119 cancel_delayed_work(&work); 118 cancel_delayed_work_sync(&work);
120 flush_scheduled_work();
121 input_unregister_device(hp680_ts_dev); 119 input_unregister_device(hp680_ts_dev);
122} 120}
123 121
diff --git a/drivers/input/touchscreen/intel-mid-touch.c b/drivers/input/touchscreen/intel-mid-touch.c
new file mode 100644
index 000000000000..c0307b22d86f
--- /dev/null
+++ b/drivers/input/touchscreen/intel-mid-touch.c
@@ -0,0 +1,687 @@
1/*
2 * Intel MID Resistive Touch Screen Driver
3 *
4 * Copyright (C) 2008 Intel Corp
5 *
6 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; version 2 of the License.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
20 *
21 * Questions/Comments/Bug fixes to Sreedhara (sreedhara.ds@intel.com)
22 * Ramesh Agarwal (ramesh.agarwal@intel.com)
23 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
24 *
25 * TODO:
26 * review conversion of r/m/w sequences
27 */
28
29#include <linux/module.h>
30#include <linux/init.h>
31#include <linux/input.h>
32#include <linux/interrupt.h>
33#include <linux/err.h>
34#include <linux/param.h>
35#include <linux/slab.h>
36#include <linux/platform_device.h>
37#include <linux/irq.h>
38#include <linux/delay.h>
39#include <asm/intel_scu_ipc.h>
40
41/* PMIC Interrupt registers */
42#define PMIC_REG_ID1 0x00 /* PMIC ID1 register */
43
44/* PMIC Interrupt registers */
45#define PMIC_REG_INT 0x04 /* PMIC interrupt register */
46#define PMIC_REG_MINT 0x05 /* PMIC interrupt mask register */
47
48/* ADC Interrupt registers */
49#define PMIC_REG_ADCINT 0x5F /* ADC interrupt register */
50#define PMIC_REG_MADCINT 0x60 /* ADC interrupt mask register */
51
52/* ADC Control registers */
53#define PMIC_REG_ADCCNTL1 0x61 /* ADC control register */
54
55/* ADC Channel Selection registers */
56#define PMICADDR0 0xA4
57#define END_OF_CHANNEL 0x1F
58
59/* ADC Result register */
60#define PMIC_REG_ADCSNS0H 0x64
61
62/* ADC channels for touch screen */
63#define MRST_TS_CHAN10 0xA /* Touch screen X+ connection */
64#define MRST_TS_CHAN11 0xB /* Touch screen X- connection */
65#define MRST_TS_CHAN12 0xC /* Touch screen Y+ connection */
66#define MRST_TS_CHAN13 0xD /* Touch screen Y- connection */
67
68/* Touch screen channel BIAS constants */
69#define MRST_XBIAS 0x20
70#define MRST_YBIAS 0x40
71#define MRST_ZBIAS 0x80
72
73/* Touch screen coordinates */
74#define MRST_X_MIN 10
75#define MRST_X_MAX 1024
76#define MRST_X_FUZZ 5
77#define MRST_Y_MIN 10
78#define MRST_Y_MAX 1024
79#define MRST_Y_FUZZ 5
80#define MRST_PRESSURE_MIN 0
81#define MRST_PRESSURE_NOMINAL 50
82#define MRST_PRESSURE_MAX 100
83
84#define WAIT_ADC_COMPLETION 10 /* msec */
85
86/* PMIC ADC round robin delays */
87#define ADC_LOOP_DELAY0 0x0 /* Continuous loop */
88#define ADC_LOOP_DELAY1 0x1 /* 4.5 ms approximate */
89
90/* PMIC Vendor Identifiers */
91#define PMIC_VENDOR_FS 0 /* PMIC vendor FreeScale */
92#define PMIC_VENDOR_MAXIM 1 /* PMIC vendor MAXIM */
93#define PMIC_VENDOR_NEC 2 /* PMIC vendor NEC */
94#define MRSTOUCH_MAX_CHANNELS 32 /* Maximum ADC channels */
95
96/* Touch screen device structure */
97struct mrstouch_dev {
98 struct device *dev; /* device associated with touch screen */
99 struct input_dev *input;
100 char phys[32];
101 u16 asr; /* Address selection register */
102 int irq;
103 unsigned int vendor; /* PMIC vendor */
104 unsigned int rev; /* PMIC revision */
105
106 int (*read_prepare)(struct mrstouch_dev *tsdev);
107 int (*read)(struct mrstouch_dev *tsdev, u16 *x, u16 *y, u16 *z);
108 int (*read_finish)(struct mrstouch_dev *tsdev);
109};
110
111
112/*************************** NEC and Maxim Interface ************************/
113
114static int mrstouch_nec_adc_read_prepare(struct mrstouch_dev *tsdev)
115{
116 return intel_scu_ipc_update_register(PMIC_REG_MADCINT, 0, 0x20);
117}
118
119/*
120 * Enables PENDET interrupt.
121 */
122static int mrstouch_nec_adc_read_finish(struct mrstouch_dev *tsdev)
123{
124 int err;
125
126 err = intel_scu_ipc_update_register(PMIC_REG_MADCINT, 0x20, 0x20);
127 if (!err)
128 err = intel_scu_ipc_update_register(PMIC_REG_ADCCNTL1, 0, 0x05);
129
130 return err;
131}
132
133/*
134 * Reads PMIC ADC touch screen result
135 * Reads ADC storage registers for higher 7 and lower 3 bits and
136 * converts the two readings into a single value and turns off gain bit
137 */
138static int mrstouch_ts_chan_read(u16 offset, u16 chan, u16 *vp, u16 *vm)
139{
140 int err;
141 u16 result;
142 u32 res;
143
144 result = PMIC_REG_ADCSNS0H + offset;
145
146 if (chan == MRST_TS_CHAN12)
147 result += 4;
148
149 err = intel_scu_ipc_ioread32(result, &res);
150 if (err)
151 return err;
152
153 /* Mash the bits up */
154
155 *vp = (res & 0xFF) << 3; /* Highest 7 bits */
156 *vp |= (res >> 8) & 0x07; /* Lower 3 bits */
157 *vp &= 0x3FF;
158
159 res >>= 16;
160
161 *vm = (res & 0xFF) << 3; /* Highest 7 bits */
162 *vm |= (res >> 8) & 0x07; /* Lower 3 bits */
163 *vm &= 0x3FF;
164
165 return 0;
166}
167
168/*
169 * Enables X, Y and Z bias values
170 * Enables YPYM for X channels and XPXM for Y channels
171 */
172static int mrstouch_ts_bias_set(uint offset, uint bias)
173{
174 int count;
175 u16 chan, start;
176 u16 reg[4];
177 u8 data[4];
178
179 chan = PMICADDR0 + offset;
180 start = MRST_TS_CHAN10;
181
182 for (count = 0; count <= 3; count++) {
183 reg[count] = chan++;
184 data[count] = bias | (start + count);
185 }
186
187 return intel_scu_ipc_writev(reg, data, 4);
188}
189
190/* To read touch screen channel values */
191static int mrstouch_nec_adc_read(struct mrstouch_dev *tsdev,
192 u16 *x, u16 *y, u16 *z)
193{
194 int err;
195 u16 xm, ym, zm;
196
197 /* configure Y bias for X channels */
198 err = mrstouch_ts_bias_set(tsdev->asr, MRST_YBIAS);
199 if (err)
200 goto ipc_error;
201
202 msleep(WAIT_ADC_COMPLETION);
203
204 /* read x+ and x- channels */
205 err = mrstouch_ts_chan_read(tsdev->asr, MRST_TS_CHAN10, x, &xm);
206 if (err)
207 goto ipc_error;
208
209 /* configure x bias for y channels */
210 err = mrstouch_ts_bias_set(tsdev->asr, MRST_XBIAS);
211 if (err)
212 goto ipc_error;
213
214 msleep(WAIT_ADC_COMPLETION);
215
216 /* read y+ and y- channels */
217 err = mrstouch_ts_chan_read(tsdev->asr, MRST_TS_CHAN12, y, &ym);
218 if (err)
219 goto ipc_error;
220
221 /* configure z bias for x and y channels */
222 err = mrstouch_ts_bias_set(tsdev->asr, MRST_ZBIAS);
223 if (err)
224 goto ipc_error;
225
226 msleep(WAIT_ADC_COMPLETION);
227
228 /* read z+ and z- channels */
229 err = mrstouch_ts_chan_read(tsdev->asr, MRST_TS_CHAN10, z, &zm);
230 if (err)
231 goto ipc_error;
232
233 return 0;
234
235ipc_error:
236 dev_err(tsdev->dev, "ipc error during adc read\n");
237 return err;
238}
239
240
241/*************************** Freescale Interface ************************/
242
243static int mrstouch_fs_adc_read_prepare(struct mrstouch_dev *tsdev)
244{
245 int err, count;
246 u16 chan;
247 u16 reg[5];
248 u8 data[5];
249
250 /* Stop the ADC */
251 err = intel_scu_ipc_update_register(PMIC_REG_MADCINT, 0x00, 0x02);
252 if (err)
253 goto ipc_error;
254
255 chan = PMICADDR0 + tsdev->asr;
256
257 /* Set X BIAS */
258 for (count = 0; count <= 3; count++) {
259 reg[count] = chan++;
260 data[count] = 0x2A;
261 }
262 reg[count] = chan++; /* Dummy */
263 data[count] = 0;
264
265 err = intel_scu_ipc_writev(reg, data, 5);
266 if (err)
267 goto ipc_error;
268
269 msleep(WAIT_ADC_COMPLETION);
270
271 /* Set Y BIAS */
272 for (count = 0; count <= 3; count++) {
273 reg[count] = chan++;
274 data[count] = 0x4A;
275 }
276 reg[count] = chan++; /* Dummy */
277 data[count] = 0;
278
279 err = intel_scu_ipc_writev(reg, data, 5);
280 if (err)
281 goto ipc_error;
282
283 msleep(WAIT_ADC_COMPLETION);
284
285 /* Set Z BIAS */
286 err = intel_scu_ipc_iowrite32(chan + 2, 0x8A8A8A8A);
287 if (err)
288 goto ipc_error;
289
290 msleep(WAIT_ADC_COMPLETION);
291
292 return 0;
293
294ipc_error:
295 dev_err(tsdev->dev, "ipc error during %s\n", __func__);
296 return err;
297}
298
299static int mrstouch_fs_adc_read(struct mrstouch_dev *tsdev,
300 u16 *x, u16 *y, u16 *z)
301{
302 int err;
303 u16 result;
304 u16 reg[4];
305 u8 data[4];
306
307 result = PMIC_REG_ADCSNS0H + tsdev->asr;
308
309 reg[0] = result + 4;
310 reg[1] = result + 5;
311 reg[2] = result + 16;
312 reg[3] = result + 17;
313
314 err = intel_scu_ipc_readv(reg, data, 4);
315 if (err)
316 goto ipc_error;
317
318 *x = data[0] << 3; /* Higher 7 bits */
319 *x |= data[1] & 0x7; /* Lower 3 bits */
320 *x &= 0x3FF;
321
322 *y = data[2] << 3; /* Higher 7 bits */
323 *y |= data[3] & 0x7; /* Lower 3 bits */
324 *y &= 0x3FF;
325
326 /* Read Z value */
327 reg[0] = result + 28;
328 reg[1] = result + 29;
329
330 err = intel_scu_ipc_readv(reg, data, 4);
331 if (err)
332 goto ipc_error;
333
334 *z = data[0] << 3; /* Higher 7 bits */
335 *z |= data[1] & 0x7; /* Lower 3 bits */
336 *z &= 0x3FF;
337
338 return 0;
339
340ipc_error:
341 dev_err(tsdev->dev, "ipc error during %s\n", __func__);
342 return err;
343}
344
345static int mrstouch_fs_adc_read_finish(struct mrstouch_dev *tsdev)
346{
347 int err, count;
348 u16 chan;
349 u16 reg[5];
350 u8 data[5];
351
352 /* Clear all TS channels */
353 chan = PMICADDR0 + tsdev->asr;
354 for (count = 0; count <= 4; count++) {
355 reg[count] = chan++;
356 data[count] = 0;
357 }
358 err = intel_scu_ipc_writev(reg, data, 5);
359 if (err)
360 goto ipc_error;
361
362 for (count = 0; count <= 4; count++) {
363 reg[count] = chan++;
364 data[count] = 0;
365 }
366 err = intel_scu_ipc_writev(reg, data, 5);
367 if (err)
368 goto ipc_error;
369
370 err = intel_scu_ipc_iowrite32(chan + 2, 0x00000000);
371 if (err)
372 goto ipc_error;
373
374 /* Start ADC */
375 err = intel_scu_ipc_update_register(PMIC_REG_MADCINT, 0x02, 0x02);
376 if (err)
377 goto ipc_error;
378
379 return 0;
380
381ipc_error:
382 dev_err(tsdev->dev, "ipc error during %s\n", __func__);
383 return err;
384}
385
386static void mrstouch_report_event(struct input_dev *input,
387 unsigned int x, unsigned int y, unsigned int z)
388{
389 if (z > MRST_PRESSURE_NOMINAL) {
390 /* Pen touched, report button touch and coordinates */
391 input_report_key(input, BTN_TOUCH, 1);
392 input_report_abs(input, ABS_X, x);
393 input_report_abs(input, ABS_Y, y);
394 } else {
395 input_report_key(input, BTN_TOUCH, 0);
396 }
397
398 input_report_abs(input, ABS_PRESSURE, z);
399 input_sync(input);
400}
401
402/* PENDET interrupt handler */
403static irqreturn_t mrstouch_pendet_irq(int irq, void *dev_id)
404{
405 struct mrstouch_dev *tsdev = dev_id;
406 u16 x, y, z;
407
408 /*
409 * Should we lower thread priority? Probably not, since we are
410 * not spinning but sleeping...
411 */
412
413 if (tsdev->read_prepare(tsdev))
414 goto out;
415
416 do {
417 if (tsdev->read(tsdev, &x, &y, &z))
418 break;
419
420 mrstouch_report_event(tsdev->input, x, y, z);
421 } while (z > MRST_PRESSURE_NOMINAL);
422
423 tsdev->read_finish(tsdev);
424
425out:
426 return IRQ_HANDLED;
427}
428
429/* Utility to read PMIC ID */
430static int __devinit mrstouch_read_pmic_id(uint *vendor, uint *rev)
431{
432 int err;
433 u8 r;
434
435 err = intel_scu_ipc_ioread8(PMIC_REG_ID1, &r);
436 if (err)
437 return err;
438
439 *vendor = r & 0x7;
440 *rev = (r >> 3) & 0x7;
441
442 return 0;
443}
444
445/*
446 * Parse ADC channels to find end of the channel configured by other ADC user
447 * NEC and MAXIM requires 4 channels and FreeScale needs 18 channels
448 */
449static int __devinit mrstouch_chan_parse(struct mrstouch_dev *tsdev)
450{
451 int err, i, found;
452 u8 r8;
453
454 found = -1;
455
456 for (i = 0; i < MRSTOUCH_MAX_CHANNELS; i++) {
457 if (found >= 0)
458 break;
459
460 err = intel_scu_ipc_ioread8(PMICADDR0 + i, &r8);
461 if (err)
462 return err;
463
464 if (r8 == END_OF_CHANNEL) {
465 found = i;
466 break;
467 }
468 }
469 if (found < 0)
470 return 0;
471
472 if (tsdev->vendor == PMIC_VENDOR_FS) {
473 if (found && found > (MRSTOUCH_MAX_CHANNELS - 18))
474 return -ENOSPC;
475 } else {
476 if (found && found > (MRSTOUCH_MAX_CHANNELS - 4))
477 return -ENOSPC;
478 }
479 return found;
480}
481
482
483/*
484 * Writes touch screen channels to ADC address selection registers
485 */
486static int __devinit mrstouch_ts_chan_set(uint offset)
487{
488 u16 chan;
489
490 int ret, count;
491
492 chan = PMICADDR0 + offset;
493 for (count = 0; count <= 3; count++) {
494 ret = intel_scu_ipc_iowrite8(chan++, MRST_TS_CHAN10 + count);
495 if (ret)
496 return ret;
497 }
498 return intel_scu_ipc_iowrite8(chan++, END_OF_CHANNEL);
499}
500
501/* Initialize ADC */
502static int __devinit mrstouch_adc_init(struct mrstouch_dev *tsdev)
503{
504 int err, start;
505 u8 ra, rm;
506
507 err = mrstouch_read_pmic_id(&tsdev->vendor, &tsdev->rev);
508 if (err) {
509 dev_err(tsdev->dev, "Unable to read PMIC id\n");
510 return err;
511 }
512
513 switch (tsdev->vendor) {
514 case PMIC_VENDOR_NEC:
515 case PMIC_VENDOR_MAXIM:
516 tsdev->read_prepare = mrstouch_nec_adc_read_prepare;
517 tsdev->read = mrstouch_nec_adc_read;
518 tsdev->read_finish = mrstouch_nec_adc_read_finish;
519 break;
520
521 case PMIC_VENDOR_FS:
522 tsdev->read_prepare = mrstouch_fs_adc_read_prepare;
523 tsdev->read = mrstouch_fs_adc_read;
524 tsdev->read_finish = mrstouch_fs_adc_read_finish;
525 break;
526
527 default:
528 dev_err(tsdev->dev,
529 "Unsupported touchscreen: %d\n", tsdev->vendor);
530 return -ENXIO;
531 }
532
533 start = mrstouch_chan_parse(tsdev);
534 if (start < 0) {
535 dev_err(tsdev->dev, "Unable to parse channels\n");
536 return start;
537 }
538
539 tsdev->asr = start;
540
541 /*
542 * ADC power on, start, enable PENDET and set loop delay
543 * ADC loop delay is set to 4.5 ms approximately
544 * Loop delay more than this results in jitter in adc readings
545 * Setting loop delay to 0 (continous loop) in MAXIM stops PENDET
546 * interrupt generation sometimes.
547 */
548
549 if (tsdev->vendor == PMIC_VENDOR_FS) {
550 ra = 0xE0 | ADC_LOOP_DELAY0;
551 rm = 0x5;
552 } else {
553 /* NEC and MAXIm not consistent with loop delay 0 */
554 ra = 0xE0 | ADC_LOOP_DELAY1;
555 rm = 0x0;
556
557 /* configure touch screen channels */
558 err = mrstouch_ts_chan_set(tsdev->asr);
559 if (err)
560 return err;
561 }
562
563 err = intel_scu_ipc_update_register(PMIC_REG_ADCCNTL1, ra, 0xE7);
564 if (err)
565 return err;
566
567 err = intel_scu_ipc_update_register(PMIC_REG_MADCINT, rm, 0x03);
568 if (err)
569 return err;
570
571 return 0;
572}
573
574
575/* Probe function for touch screen driver */
576static int __devinit mrstouch_probe(struct platform_device *pdev)
577{
578 struct mrstouch_dev *tsdev;
579 struct input_dev *input;
580 int err;
581 int irq;
582
583 irq = platform_get_irq(pdev, 0);
584 if (irq < 0) {
585 dev_err(&pdev->dev, "no interrupt assigned\n");
586 return -EINVAL;
587 }
588
589 tsdev = kzalloc(sizeof(struct mrstouch_dev), GFP_KERNEL);
590 input = input_allocate_device();
591 if (!tsdev || !input) {
592 dev_err(&pdev->dev, "unable to allocate memory\n");
593 err = -ENOMEM;
594 goto err_free_mem;
595 }
596
597 tsdev->dev = &pdev->dev;
598 tsdev->input = input;
599 tsdev->irq = irq;
600
601 snprintf(tsdev->phys, sizeof(tsdev->phys),
602 "%s/input0", dev_name(tsdev->dev));
603
604 err = mrstouch_adc_init(tsdev);
605 if (err) {
606 dev_err(&pdev->dev, "ADC initialization failed\n");
607 goto err_free_mem;
608 }
609
610 input->name = "mrst_touchscreen";
611 input->phys = tsdev->phys;
612 input->dev.parent = tsdev->dev;
613
614 input->id.vendor = tsdev->vendor;
615 input->id.version = tsdev->rev;
616
617 input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
618 input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
619
620 input_set_abs_params(tsdev->input, ABS_X,
621 MRST_X_MIN, MRST_X_MAX, MRST_X_FUZZ, 0);
622 input_set_abs_params(tsdev->input, ABS_Y,
623 MRST_Y_MIN, MRST_Y_MAX, MRST_Y_FUZZ, 0);
624 input_set_abs_params(tsdev->input, ABS_PRESSURE,
625 MRST_PRESSURE_MIN, MRST_PRESSURE_MAX, 0, 0);
626
627 err = request_threaded_irq(tsdev->irq, NULL, mrstouch_pendet_irq,
628 0, "mrstouch", tsdev);
629 if (err) {
630 dev_err(tsdev->dev, "unable to allocate irq\n");
631 goto err_free_mem;
632 }
633
634 err = input_register_device(tsdev->input);
635 if (err) {
636 dev_err(tsdev->dev, "unable to register input device\n");
637 goto err_free_irq;
638 }
639
640 platform_set_drvdata(pdev, tsdev);
641 return 0;
642
643err_free_irq:
644 free_irq(tsdev->irq, tsdev);
645err_free_mem:
646 input_free_device(input);
647 kfree(tsdev);
648 return err;
649}
650
651static int __devexit mrstouch_remove(struct platform_device *pdev)
652{
653 struct mrstouch_dev *tsdev = platform_get_drvdata(pdev);
654
655 free_irq(tsdev->irq, tsdev);
656 input_unregister_device(tsdev->input);
657 kfree(tsdev);
658
659 platform_set_drvdata(pdev, NULL);
660
661 return 0;
662}
663
664static struct platform_driver mrstouch_driver = {
665 .driver = {
666 .name = "pmic_touch",
667 .owner = THIS_MODULE,
668 },
669 .probe = mrstouch_probe,
670 .remove = __devexit_p(mrstouch_remove),
671};
672
673static int __init mrstouch_init(void)
674{
675 return platform_driver_register(&mrstouch_driver);
676}
677module_init(mrstouch_init);
678
679static void __exit mrstouch_exit(void)
680{
681 platform_driver_unregister(&mrstouch_driver);
682}
683module_exit(mrstouch_exit);
684
685MODULE_AUTHOR("Sreedhara Murthy. D.S, sreedhara.ds@intel.com");
686MODULE_DESCRIPTION("Intel Moorestown Resistive Touch Screen Driver");
687MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/lpc32xx_ts.c b/drivers/input/touchscreen/lpc32xx_ts.c
new file mode 100644
index 000000000000..dcf803f5a1f7
--- /dev/null
+++ b/drivers/input/touchscreen/lpc32xx_ts.c
@@ -0,0 +1,411 @@
1/*
2 * LPC32xx built-in touchscreen driver
3 *
4 * Copyright (C) 2010 NXP Semiconductors
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 */
16
17#include <linux/platform_device.h>
18#include <linux/init.h>
19#include <linux/input.h>
20#include <linux/interrupt.h>
21#include <linux/module.h>
22#include <linux/clk.h>
23#include <linux/io.h>
24#include <linux/slab.h>
25
26/*
27 * Touchscreen controller register offsets
28 */
29#define LPC32XX_TSC_STAT 0x00
30#define LPC32XX_TSC_SEL 0x04
31#define LPC32XX_TSC_CON 0x08
32#define LPC32XX_TSC_FIFO 0x0C
33#define LPC32XX_TSC_DTR 0x10
34#define LPC32XX_TSC_RTR 0x14
35#define LPC32XX_TSC_UTR 0x18
36#define LPC32XX_TSC_TTR 0x1C
37#define LPC32XX_TSC_DXP 0x20
38#define LPC32XX_TSC_MIN_X 0x24
39#define LPC32XX_TSC_MAX_X 0x28
40#define LPC32XX_TSC_MIN_Y 0x2C
41#define LPC32XX_TSC_MAX_Y 0x30
42#define LPC32XX_TSC_AUX_UTR 0x34
43#define LPC32XX_TSC_AUX_MIN 0x38
44#define LPC32XX_TSC_AUX_MAX 0x3C
45
46#define LPC32XX_TSC_STAT_FIFO_OVRRN (1 << 8)
47#define LPC32XX_TSC_STAT_FIFO_EMPTY (1 << 7)
48
49#define LPC32XX_TSC_SEL_DEFVAL 0x0284
50
51#define LPC32XX_TSC_ADCCON_IRQ_TO_FIFO_4 (0x1 << 11)
52#define LPC32XX_TSC_ADCCON_X_SAMPLE_SIZE(s) ((10 - (s)) << 7)
53#define LPC32XX_TSC_ADCCON_Y_SAMPLE_SIZE(s) ((10 - (s)) << 4)
54#define LPC32XX_TSC_ADCCON_POWER_UP (1 << 2)
55#define LPC32XX_TSC_ADCCON_AUTO_EN (1 << 0)
56
57#define LPC32XX_TSC_FIFO_TS_P_LEVEL (1 << 31)
58#define LPC32XX_TSC_FIFO_NORMALIZE_X_VAL(x) (((x) & 0x03FF0000) >> 16)
59#define LPC32XX_TSC_FIFO_NORMALIZE_Y_VAL(y) ((y) & 0x000003FF)
60
61#define LPC32XX_TSC_ADCDAT_VALUE_MASK 0x000003FF
62
63#define LPC32XX_TSC_MIN_XY_VAL 0x0
64#define LPC32XX_TSC_MAX_XY_VAL 0x3FF
65
66#define MOD_NAME "ts-lpc32xx"
67
68#define tsc_readl(dev, reg) \
69 __raw_readl((dev)->tsc_base + (reg))
70#define tsc_writel(dev, reg, val) \
71 __raw_writel((val), (dev)->tsc_base + (reg))
72
73struct lpc32xx_tsc {
74 struct input_dev *dev;
75 void __iomem *tsc_base;
76 int irq;
77 struct clk *clk;
78};
79
80static void lpc32xx_fifo_clear(struct lpc32xx_tsc *tsc)
81{
82 while (!(tsc_readl(tsc, LPC32XX_TSC_STAT) &
83 LPC32XX_TSC_STAT_FIFO_EMPTY))
84 tsc_readl(tsc, LPC32XX_TSC_FIFO);
85}
86
87static irqreturn_t lpc32xx_ts_interrupt(int irq, void *dev_id)
88{
89 u32 tmp, rv[4], xs[4], ys[4];
90 int idx;
91 struct lpc32xx_tsc *tsc = dev_id;
92 struct input_dev *input = tsc->dev;
93
94 tmp = tsc_readl(tsc, LPC32XX_TSC_STAT);
95
96 if (tmp & LPC32XX_TSC_STAT_FIFO_OVRRN) {
97 /* FIFO overflow - throw away samples */
98 lpc32xx_fifo_clear(tsc);
99 return IRQ_HANDLED;
100 }
101
102 /*
103 * Gather and normalize 4 samples. Pen-up events may have less
104 * than 4 samples, but its ok to pop 4 and let the last sample
105 * pen status check drop the samples.
106 */
107 idx = 0;
108 while (idx < 4 &&
109 !(tsc_readl(tsc, LPC32XX_TSC_STAT) &
110 LPC32XX_TSC_STAT_FIFO_EMPTY)) {
111 tmp = tsc_readl(tsc, LPC32XX_TSC_FIFO);
112 xs[idx] = LPC32XX_TSC_ADCDAT_VALUE_MASK -
113 LPC32XX_TSC_FIFO_NORMALIZE_X_VAL(tmp);
114 ys[idx] = LPC32XX_TSC_ADCDAT_VALUE_MASK -
115 LPC32XX_TSC_FIFO_NORMALIZE_Y_VAL(tmp);
116 rv[idx] = tmp;
117 idx++;
118 }
119
120 /* Data is only valid if pen is still down in last sample */
121 if (!(rv[3] & LPC32XX_TSC_FIFO_TS_P_LEVEL) && idx == 4) {
122 /* Use average of 2nd and 3rd sample for position */
123 input_report_abs(input, ABS_X, (xs[1] + xs[2]) / 2);
124 input_report_abs(input, ABS_Y, (ys[1] + ys[2]) / 2);
125 input_report_key(input, BTN_TOUCH, 1);
126 } else {
127 input_report_key(input, BTN_TOUCH, 0);
128 }
129
130 input_sync(input);
131
132 return IRQ_HANDLED;
133}
134
135static void lpc32xx_stop_tsc(struct lpc32xx_tsc *tsc)
136{
137 /* Disable auto mode */
138 tsc_writel(tsc, LPC32XX_TSC_CON,
139 tsc_readl(tsc, LPC32XX_TSC_CON) &
140 ~LPC32XX_TSC_ADCCON_AUTO_EN);
141
142 clk_disable(tsc->clk);
143}
144
145static void lpc32xx_setup_tsc(struct lpc32xx_tsc *tsc)
146{
147 u32 tmp;
148
149 clk_enable(tsc->clk);
150
151 tmp = tsc_readl(tsc, LPC32XX_TSC_CON) & ~LPC32XX_TSC_ADCCON_POWER_UP;
152
153 /* Set the TSC FIFO depth to 4 samples @ 10-bits per sample (max) */
154 tmp = LPC32XX_TSC_ADCCON_IRQ_TO_FIFO_4 |
155 LPC32XX_TSC_ADCCON_X_SAMPLE_SIZE(10) |
156 LPC32XX_TSC_ADCCON_Y_SAMPLE_SIZE(10);
157 tsc_writel(tsc, LPC32XX_TSC_CON, tmp);
158
159 /* These values are all preset */
160 tsc_writel(tsc, LPC32XX_TSC_SEL, LPC32XX_TSC_SEL_DEFVAL);
161 tsc_writel(tsc, LPC32XX_TSC_MIN_X, LPC32XX_TSC_MIN_XY_VAL);
162 tsc_writel(tsc, LPC32XX_TSC_MAX_X, LPC32XX_TSC_MAX_XY_VAL);
163 tsc_writel(tsc, LPC32XX_TSC_MIN_Y, LPC32XX_TSC_MIN_XY_VAL);
164 tsc_writel(tsc, LPC32XX_TSC_MAX_Y, LPC32XX_TSC_MAX_XY_VAL);
165
166 /* Aux support is not used */
167 tsc_writel(tsc, LPC32XX_TSC_AUX_UTR, 0);
168 tsc_writel(tsc, LPC32XX_TSC_AUX_MIN, 0);
169 tsc_writel(tsc, LPC32XX_TSC_AUX_MAX, 0);
170
171 /*
172 * Set sample rate to about 240Hz per X/Y pair. A single measurement
173 * consists of 4 pairs which gives about a 60Hz sample rate based on
174 * a stable 32768Hz clock source. Values are in clocks.
175 * Rate is (32768 / (RTR + XCONV + RTR + YCONV + DXP + TTR + UTR) / 4
176 */
177 tsc_writel(tsc, LPC32XX_TSC_RTR, 0x2);
178 tsc_writel(tsc, LPC32XX_TSC_DTR, 0x2);
179 tsc_writel(tsc, LPC32XX_TSC_TTR, 0x10);
180 tsc_writel(tsc, LPC32XX_TSC_DXP, 0x4);
181 tsc_writel(tsc, LPC32XX_TSC_UTR, 88);
182
183 lpc32xx_fifo_clear(tsc);
184
185 /* Enable automatic ts event capture */
186 tsc_writel(tsc, LPC32XX_TSC_CON, tmp | LPC32XX_TSC_ADCCON_AUTO_EN);
187}
188
189static int lpc32xx_ts_open(struct input_dev *dev)
190{
191 struct lpc32xx_tsc *tsc = input_get_drvdata(dev);
192
193 lpc32xx_setup_tsc(tsc);
194
195 return 0;
196}
197
198static void lpc32xx_ts_close(struct input_dev *dev)
199{
200 struct lpc32xx_tsc *tsc = input_get_drvdata(dev);
201
202 lpc32xx_stop_tsc(tsc);
203}
204
205static int __devinit lpc32xx_ts_probe(struct platform_device *pdev)
206{
207 struct lpc32xx_tsc *tsc;
208 struct input_dev *input;
209 struct resource *res;
210 resource_size_t size;
211 int irq;
212 int error;
213
214 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
215 if (!res) {
216 dev_err(&pdev->dev, "Can't get memory resource\n");
217 return -ENOENT;
218 }
219
220 irq = platform_get_irq(pdev, 0);
221 if (irq < 0) {
222 dev_err(&pdev->dev, "Can't get interrupt resource\n");
223 return irq;
224 }
225
226 tsc = kzalloc(sizeof(*tsc), GFP_KERNEL);
227 input = input_allocate_device();
228 if (!tsc || !input) {
229 dev_err(&pdev->dev, "failed allocating memory\n");
230 error = -ENOMEM;
231 goto err_free_mem;
232 }
233
234 tsc->dev = input;
235 tsc->irq = irq;
236
237 size = resource_size(res);
238
239 if (!request_mem_region(res->start, size, pdev->name)) {
240 dev_err(&pdev->dev, "TSC registers are not free\n");
241 error = -EBUSY;
242 goto err_free_mem;
243 }
244
245 tsc->tsc_base = ioremap(res->start, size);
246 if (!tsc->tsc_base) {
247 dev_err(&pdev->dev, "Can't map memory\n");
248 error = -ENOMEM;
249 goto err_release_mem;
250 }
251
252 tsc->clk = clk_get(&pdev->dev, NULL);
253 if (IS_ERR(tsc->clk)) {
254 dev_err(&pdev->dev, "failed getting clock\n");
255 error = PTR_ERR(tsc->clk);
256 goto err_unmap;
257 }
258
259 input->name = MOD_NAME;
260 input->phys = "lpc32xx/input0";
261 input->id.bustype = BUS_HOST;
262 input->id.vendor = 0x0001;
263 input->id.product = 0x0002;
264 input->id.version = 0x0100;
265 input->dev.parent = &pdev->dev;
266 input->open = lpc32xx_ts_open;
267 input->close = lpc32xx_ts_close;
268
269 input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
270 input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
271 input_set_abs_params(input, ABS_X, LPC32XX_TSC_MIN_XY_VAL,
272 LPC32XX_TSC_MAX_XY_VAL, 0, 0);
273 input_set_abs_params(input, ABS_Y, LPC32XX_TSC_MIN_XY_VAL,
274 LPC32XX_TSC_MAX_XY_VAL, 0, 0);
275
276 input_set_drvdata(input, tsc);
277
278 error = request_irq(tsc->irq, lpc32xx_ts_interrupt,
279 IRQF_DISABLED, pdev->name, tsc);
280 if (error) {
281 dev_err(&pdev->dev, "failed requesting interrupt\n");
282 goto err_put_clock;
283 }
284
285 error = input_register_device(input);
286 if (error) {
287 dev_err(&pdev->dev, "failed registering input device\n");
288 goto err_free_irq;
289 }
290
291 platform_set_drvdata(pdev, tsc);
292 device_init_wakeup(&pdev->dev, 1);
293
294 return 0;
295
296err_free_irq:
297 free_irq(tsc->irq, tsc);
298err_put_clock:
299 clk_put(tsc->clk);
300err_unmap:
301 iounmap(tsc->tsc_base);
302err_release_mem:
303 release_mem_region(res->start, size);
304err_free_mem:
305 input_free_device(input);
306 kfree(tsc);
307
308 return error;
309}
310
311static int __devexit lpc32xx_ts_remove(struct platform_device *pdev)
312{
313 struct lpc32xx_tsc *tsc = platform_get_drvdata(pdev);
314 struct resource *res;
315
316 device_init_wakeup(&pdev->dev, 0);
317 free_irq(tsc->irq, tsc);
318
319 input_unregister_device(tsc->dev);
320
321 clk_put(tsc->clk);
322
323 iounmap(tsc->tsc_base);
324 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
325 release_mem_region(res->start, resource_size(res));
326
327 kfree(tsc);
328
329 return 0;
330}
331
332#ifdef CONFIG_PM
333static int lpc32xx_ts_suspend(struct device *dev)
334{
335 struct lpc32xx_tsc *tsc = dev_get_drvdata(dev);
336 struct input_dev *input = tsc->dev;
337
338 /*
339 * Suspend and resume can be called when the device hasn't been
340 * enabled. If there are no users that have the device open, then
341 * avoid calling the TSC stop and start functions as the TSC
342 * isn't yet clocked.
343 */
344 mutex_lock(&input->mutex);
345
346 if (input->users) {
347 if (device_may_wakeup(dev))
348 enable_irq_wake(tsc->irq);
349 else
350 lpc32xx_stop_tsc(tsc);
351 }
352
353 mutex_unlock(&input->mutex);
354
355 return 0;
356}
357
358static int lpc32xx_ts_resume(struct device *dev)
359{
360 struct lpc32xx_tsc *tsc = dev_get_drvdata(dev);
361 struct input_dev *input = tsc->dev;
362
363 mutex_lock(&input->mutex);
364
365 if (input->users) {
366 if (device_may_wakeup(dev))
367 disable_irq_wake(tsc->irq);
368 else
369 lpc32xx_setup_tsc(tsc);
370 }
371
372 mutex_unlock(&input->mutex);
373
374 return 0;
375}
376
377static const struct dev_pm_ops lpc32xx_ts_pm_ops = {
378 .suspend = lpc32xx_ts_suspend,
379 .resume = lpc32xx_ts_resume,
380};
381#define LPC32XX_TS_PM_OPS (&lpc32xx_ts_pm_ops)
382#else
383#define LPC32XX_TS_PM_OPS NULL
384#endif
385
386static struct platform_driver lpc32xx_ts_driver = {
387 .probe = lpc32xx_ts_probe,
388 .remove = __devexit_p(lpc32xx_ts_remove),
389 .driver = {
390 .name = MOD_NAME,
391 .owner = THIS_MODULE,
392 .pm = LPC32XX_TS_PM_OPS,
393 },
394};
395
396static int __init lpc32xx_ts_init(void)
397{
398 return platform_driver_register(&lpc32xx_ts_driver);
399}
400module_init(lpc32xx_ts_init);
401
402static void __exit lpc32xx_ts_exit(void)
403{
404 platform_driver_unregister(&lpc32xx_ts_driver);
405}
406module_exit(lpc32xx_ts_exit);
407
408MODULE_AUTHOR("Kevin Wells <kevin.wells@nxp.com");
409MODULE_DESCRIPTION("LPC32XX TSC Driver");
410MODULE_LICENSE("GPL");
411MODULE_ALIAS("platform:lpc32xx_ts");
diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c
index 6085d12fd561..8feb7f3c8be1 100644
--- a/drivers/input/touchscreen/s3c2410_ts.c
+++ b/drivers/input/touchscreen/s3c2410_ts.c
@@ -350,7 +350,7 @@ static int __devinit s3c2410ts_probe(struct platform_device *pdev)
350 err_tcirq: 350 err_tcirq:
351 free_irq(ts.irq_tc, ts.input); 351 free_irq(ts.irq_tc, ts.input);
352 err_inputdev: 352 err_inputdev:
353 input_unregister_device(ts.input); 353 input_free_device(ts.input);
354 err_iomap: 354 err_iomap:
355 iounmap(ts.io); 355 iounmap(ts.io);
356 err_clk: 356 err_clk:
diff --git a/drivers/input/touchscreen/stmpe-ts.c b/drivers/input/touchscreen/stmpe-ts.c
index 656148ec0027..ae88e13c99ff 100644
--- a/drivers/input/touchscreen/stmpe-ts.c
+++ b/drivers/input/touchscreen/stmpe-ts.c
@@ -268,7 +268,7 @@ static int __devinit stmpe_input_probe(struct platform_device *pdev)
268 struct stmpe_touch *ts; 268 struct stmpe_touch *ts;
269 struct input_dev *idev; 269 struct input_dev *idev;
270 struct stmpe_ts_platform_data *ts_pdata = NULL; 270 struct stmpe_ts_platform_data *ts_pdata = NULL;
271 int ret = 0; 271 int ret;
272 int ts_irq; 272 int ts_irq;
273 273
274 ts_irq = platform_get_irq_byname(pdev, "FIFO_TH"); 274 ts_irq = platform_get_irq_byname(pdev, "FIFO_TH");
@@ -276,12 +276,16 @@ static int __devinit stmpe_input_probe(struct platform_device *pdev)
276 return ts_irq; 276 return ts_irq;
277 277
278 ts = kzalloc(sizeof(*ts), GFP_KERNEL); 278 ts = kzalloc(sizeof(*ts), GFP_KERNEL);
279 if (!ts) 279 if (!ts) {
280 ret = -ENOMEM;
280 goto err_out; 281 goto err_out;
282 }
281 283
282 idev = input_allocate_device(); 284 idev = input_allocate_device();
283 if (!idev) 285 if (!idev) {
286 ret = -ENOMEM;
284 goto err_free_ts; 287 goto err_free_ts;
288 }
285 289
286 platform_set_drvdata(pdev, ts); 290 platform_set_drvdata(pdev, ts);
287 ts->stmpe = stmpe; 291 ts->stmpe = stmpe;
@@ -361,7 +365,6 @@ static int __devexit stmpe_ts_remove(struct platform_device *pdev)
361 platform_set_drvdata(pdev, NULL); 365 platform_set_drvdata(pdev, NULL);
362 366
363 input_unregister_device(ts->idev); 367 input_unregister_device(ts->idev);
364 input_free_device(ts->idev);
365 368
366 kfree(ts); 369 kfree(ts);
367 370
diff --git a/drivers/input/touchscreen/tps6507x-ts.c b/drivers/input/touchscreen/tps6507x-ts.c
index a644d18c04dc..c8c136cf7bbc 100644
--- a/drivers/input/touchscreen/tps6507x-ts.c
+++ b/drivers/input/touchscreen/tps6507x-ts.c
@@ -335,6 +335,7 @@ static int tps6507x_ts_probe(struct platform_device *pdev)
335 dev_err(tsc->dev, "schedule failed"); 335 dev_err(tsc->dev, "schedule failed");
336 goto err2; 336 goto err2;
337 } 337 }
338 platform_set_drvdata(pdev, tps6507x_dev);
338 339
339 return 0; 340 return 0;
340 341
@@ -358,7 +359,7 @@ static int __devexit tps6507x_ts_remove(struct platform_device *pdev)
358 cancel_delayed_work_sync(&tsc->work); 359 cancel_delayed_work_sync(&tsc->work);
359 destroy_workqueue(tsc->wq); 360 destroy_workqueue(tsc->wq);
360 361
361 input_free_device(input_dev); 362 input_unregister_device(input_dev);
362 363
363 tps6507x_dev->ts = NULL; 364 tps6507x_dev->ts = NULL;
364 kfree(tsc); 365 kfree(tsc);
diff --git a/drivers/input/touchscreen/tsc2007.c b/drivers/input/touchscreen/tsc2007.c
index be23780e8a3e..80467f262331 100644
--- a/drivers/input/touchscreen/tsc2007.c
+++ b/drivers/input/touchscreen/tsc2007.c
@@ -265,7 +265,7 @@ static int __devinit tsc2007_probe(struct i2c_client *client,
265 const struct i2c_device_id *id) 265 const struct i2c_device_id *id)
266{ 266{
267 struct tsc2007 *ts; 267 struct tsc2007 *ts;
268 struct tsc2007_platform_data *pdata = pdata = client->dev.platform_data; 268 struct tsc2007_platform_data *pdata = client->dev.platform_data;
269 struct input_dev *input_dev; 269 struct input_dev *input_dev;
270 int err; 270 int err;
271 271
diff --git a/drivers/input/touchscreen/wacom_w8001.c b/drivers/input/touchscreen/wacom_w8001.c
index 56dc35c94bb1..9ae4c7b16ba7 100644
--- a/drivers/input/touchscreen/wacom_w8001.c
+++ b/drivers/input/touchscreen/wacom_w8001.c
@@ -2,6 +2,7 @@
2 * Wacom W8001 penabled serial touchscreen driver 2 * Wacom W8001 penabled serial touchscreen driver
3 * 3 *
4 * Copyright (c) 2008 Jaya Kumar 4 * Copyright (c) 2008 Jaya Kumar
5 * Copyright (c) 2010 Red Hat, Inc.
5 * 6 *
6 * This file is subject to the terms and conditions of the GNU General Public 7 * This file is subject to the terms and conditions of the GNU General Public
7 * License. See the file COPYING in the main directory of this archive for 8 * License. See the file COPYING in the main directory of this archive for
@@ -30,11 +31,24 @@ MODULE_LICENSE("GPL");
30#define W8001_LEAD_BYTE 0x80 31#define W8001_LEAD_BYTE 0x80
31#define W8001_TAB_MASK 0x40 32#define W8001_TAB_MASK 0x40
32#define W8001_TAB_BYTE 0x40 33#define W8001_TAB_BYTE 0x40
34/* set in first byte of touch data packets */
35#define W8001_TOUCH_MASK (0x10 | W8001_LEAD_MASK)
36#define W8001_TOUCH_BYTE (0x10 | W8001_LEAD_BYTE)
33 37
34#define W8001_QUERY_PACKET 0x20 38#define W8001_QUERY_PACKET 0x20
35 39
36#define W8001_CMD_START '1' 40#define W8001_CMD_START '1'
37#define W8001_CMD_QUERY '*' 41#define W8001_CMD_QUERY '*'
42#define W8001_CMD_TOUCHQUERY '%'
43
44/* length of data packets in bytes, depends on device. */
45#define W8001_PKTLEN_TOUCH93 5
46#define W8001_PKTLEN_TOUCH9A 7
47#define W8001_PKTLEN_TPCPEN 9
48#define W8001_PKTLEN_TPCCTL 11 /* control packet */
49#define W8001_PKTLEN_TOUCH2FG 13
50
51#define MAX_TRACKING_ID 0xFF /* arbitrarily chosen */
38 52
39struct w8001_coord { 53struct w8001_coord {
40 u8 rdy; 54 u8 rdy;
@@ -48,6 +62,15 @@ struct w8001_coord {
48 u8 tilt_y; 62 u8 tilt_y;
49}; 63};
50 64
65/* touch query reply packet */
66struct w8001_touch_query {
67 u8 panel_res;
68 u8 capacity_res;
69 u8 sensor_id;
70 u16 x;
71 u16 y;
72};
73
51/* 74/*
52 * Per-touchscreen data. 75 * Per-touchscreen data.
53 */ 76 */
@@ -62,6 +85,9 @@ struct w8001 {
62 unsigned char response[W8001_MAX_LENGTH]; 85 unsigned char response[W8001_MAX_LENGTH];
63 unsigned char data[W8001_MAX_LENGTH]; 86 unsigned char data[W8001_MAX_LENGTH];
64 char phys[32]; 87 char phys[32];
88 int type;
89 unsigned int pktlen;
90 int trkid[2];
65}; 91};
66 92
67static void parse_data(u8 *data, struct w8001_coord *coord) 93static void parse_data(u8 *data, struct w8001_coord *coord)
@@ -88,11 +114,98 @@ static void parse_data(u8 *data, struct w8001_coord *coord)
88 coord->tilt_y = data[8] & 0x7F; 114 coord->tilt_y = data[8] & 0x7F;
89} 115}
90 116
117static void parse_touch(struct w8001 *w8001)
118{
119 static int trkid;
120 struct input_dev *dev = w8001->dev;
121 unsigned char *data = w8001->data;
122 int i;
123
124 for (i = 0; i < 2; i++) {
125 input_mt_slot(dev, i);
126
127 if (data[0] & (1 << i)) {
128 int x = (data[6 * i + 1] << 7) | (data[6 * i + 2]);
129 int y = (data[6 * i + 3] << 7) | (data[6 * i + 4]);
130 /* data[5,6] and [11,12] is finger capacity */
131
132 input_report_abs(dev, ABS_MT_POSITION_X, x);
133 input_report_abs(dev, ABS_MT_POSITION_Y, y);
134 input_report_abs(dev, ABS_MT_TOOL_TYPE, MT_TOOL_FINGER);
135 if (w8001->trkid[i] < 0)
136 w8001->trkid[i] = trkid++ & MAX_TRACKING_ID;
137 } else {
138 w8001->trkid[i] = -1;
139 }
140 input_report_abs(dev, ABS_MT_TRACKING_ID, w8001->trkid[i]);
141 }
142
143 input_sync(dev);
144}
145
146static void parse_touchquery(u8 *data, struct w8001_touch_query *query)
147{
148 memset(query, 0, sizeof(*query));
149
150 query->panel_res = data[1];
151 query->sensor_id = data[2] & 0x7;
152 query->capacity_res = data[7];
153
154 query->x = data[3] << 9;
155 query->x |= data[4] << 2;
156 query->x |= (data[2] >> 5) & 0x3;
157
158 query->y = data[5] << 9;
159 query->y |= data[6] << 2;
160 query->y |= (data[2] >> 3) & 0x3;
161}
162
163static void report_pen_events(struct w8001 *w8001, struct w8001_coord *coord)
164{
165 struct input_dev *dev = w8001->dev;
166
167 /*
168 * We have 1 bit for proximity (rdy) and 3 bits for tip, side,
169 * side2/eraser. If rdy && f2 are set, this can be either pen + side2,
170 * or eraser. assume
171 * - if dev is already in proximity and f2 is toggled → pen + side2
172 * - if dev comes into proximity with f2 set → eraser
173 * If f2 disappears after assuming eraser, fake proximity out for
174 * eraser and in for pen.
175 */
176
177 if (!w8001->type) {
178 w8001->type = coord->f2 ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
179 } else if (w8001->type == BTN_TOOL_RUBBER) {
180 if (!coord->f2) {
181 input_report_abs(dev, ABS_PRESSURE, 0);
182 input_report_key(dev, BTN_TOUCH, 0);
183 input_report_key(dev, BTN_STYLUS, 0);
184 input_report_key(dev, BTN_STYLUS2, 0);
185 input_report_key(dev, BTN_TOOL_RUBBER, 0);
186 input_sync(dev);
187 w8001->type = BTN_TOOL_PEN;
188 }
189 } else {
190 input_report_key(dev, BTN_STYLUS2, coord->f2);
191 }
192
193 input_report_abs(dev, ABS_X, coord->x);
194 input_report_abs(dev, ABS_Y, coord->y);
195 input_report_abs(dev, ABS_PRESSURE, coord->pen_pressure);
196 input_report_key(dev, BTN_TOUCH, coord->tsw);
197 input_report_key(dev, BTN_STYLUS, coord->f1);
198 input_report_key(dev, w8001->type, coord->rdy);
199 input_sync(dev);
200
201 if (!coord->rdy)
202 w8001->type = 0;
203}
204
91static irqreturn_t w8001_interrupt(struct serio *serio, 205static irqreturn_t w8001_interrupt(struct serio *serio,
92 unsigned char data, unsigned int flags) 206 unsigned char data, unsigned int flags)
93{ 207{
94 struct w8001 *w8001 = serio_get_drvdata(serio); 208 struct w8001 *w8001 = serio_get_drvdata(serio);
95 struct input_dev *dev = w8001->dev;
96 struct w8001_coord coord; 209 struct w8001_coord coord;
97 unsigned char tmp; 210 unsigned char tmp;
98 211
@@ -105,26 +218,45 @@ static irqreturn_t w8001_interrupt(struct serio *serio,
105 } 218 }
106 break; 219 break;
107 220
108 case 8: 221 case W8001_PKTLEN_TOUCH93 - 1:
222 case W8001_PKTLEN_TOUCH9A - 1:
223 /* ignore one-finger touch packet. */
224 if (w8001->pktlen == w8001->idx)
225 w8001->idx = 0;
226 break;
227
228 /* Pen coordinates packet */
229 case W8001_PKTLEN_TPCPEN - 1:
109 tmp = w8001->data[0] & W8001_TAB_MASK; 230 tmp = w8001->data[0] & W8001_TAB_MASK;
110 if (unlikely(tmp == W8001_TAB_BYTE)) 231 if (unlikely(tmp == W8001_TAB_BYTE))
111 break; 232 break;
112 233
234 tmp = (w8001->data[0] & W8001_TOUCH_BYTE);
235 if (tmp == W8001_TOUCH_BYTE)
236 break;
237
113 w8001->idx = 0; 238 w8001->idx = 0;
114 parse_data(w8001->data, &coord); 239 parse_data(w8001->data, &coord);
115 input_report_abs(dev, ABS_X, coord.x); 240 report_pen_events(w8001, &coord);
116 input_report_abs(dev, ABS_Y, coord.y);
117 input_report_abs(dev, ABS_PRESSURE, coord.pen_pressure);
118 input_report_key(dev, BTN_TOUCH, coord.tsw);
119 input_sync(dev);
120 break; 241 break;
121 242
122 case 10: 243 /* control packet */
244 case W8001_PKTLEN_TPCCTL - 1:
245 tmp = (w8001->data[0] & W8001_TOUCH_MASK);
246 if (tmp == W8001_TOUCH_BYTE)
247 break;
248
123 w8001->idx = 0; 249 w8001->idx = 0;
124 memcpy(w8001->response, w8001->data, W8001_MAX_LENGTH); 250 memcpy(w8001->response, w8001->data, W8001_MAX_LENGTH);
125 w8001->response_type = W8001_QUERY_PACKET; 251 w8001->response_type = W8001_QUERY_PACKET;
126 complete(&w8001->cmd_done); 252 complete(&w8001->cmd_done);
127 break; 253 break;
254
255 /* 2 finger touch packet */
256 case W8001_PKTLEN_TOUCH2FG - 1:
257 w8001->idx = 0;
258 parse_touch(w8001);
259 break;
128 } 260 }
129 261
130 return IRQ_HANDLED; 262 return IRQ_HANDLED;
@@ -167,6 +299,38 @@ static int w8001_setup(struct w8001 *w8001)
167 input_set_abs_params(dev, ABS_TILT_X, 0, coord.tilt_x, 0, 0); 299 input_set_abs_params(dev, ABS_TILT_X, 0, coord.tilt_x, 0, 0);
168 input_set_abs_params(dev, ABS_TILT_Y, 0, coord.tilt_y, 0, 0); 300 input_set_abs_params(dev, ABS_TILT_Y, 0, coord.tilt_y, 0, 0);
169 301
302 error = w8001_command(w8001, W8001_CMD_TOUCHQUERY, true);
303 if (!error) {
304 struct w8001_touch_query touch;
305
306 parse_touchquery(w8001->response, &touch);
307
308 switch (touch.sensor_id) {
309 case 0:
310 case 2:
311 w8001->pktlen = W8001_PKTLEN_TOUCH93;
312 break;
313 case 1:
314 case 3:
315 case 4:
316 w8001->pktlen = W8001_PKTLEN_TOUCH9A;
317 break;
318 case 5:
319 w8001->pktlen = W8001_PKTLEN_TOUCH2FG;
320
321 input_mt_create_slots(dev, 2);
322 input_set_abs_params(dev, ABS_MT_TRACKING_ID,
323 0, MAX_TRACKING_ID, 0, 0);
324 input_set_abs_params(dev, ABS_MT_POSITION_X,
325 0, touch.x, 0, 0);
326 input_set_abs_params(dev, ABS_MT_POSITION_Y,
327 0, touch.y, 0, 0);
328 input_set_abs_params(dev, ABS_MT_TOOL_TYPE,
329 0, 0, 0, 0);
330 break;
331 }
332 }
333
170 return w8001_command(w8001, W8001_CMD_START, false); 334 return w8001_command(w8001, W8001_CMD_START, false);
171} 335}
172 336
@@ -208,6 +372,7 @@ static int w8001_connect(struct serio *serio, struct serio_driver *drv)
208 w8001->serio = serio; 372 w8001->serio = serio;
209 w8001->id = serio->id.id; 373 w8001->id = serio->id.id;
210 w8001->dev = input_dev; 374 w8001->dev = input_dev;
375 w8001->trkid[0] = w8001->trkid[1] = -1;
211 init_completion(&w8001->cmd_done); 376 init_completion(&w8001->cmd_done);
212 snprintf(w8001->phys, sizeof(w8001->phys), "%s/input0", serio->phys); 377 snprintf(w8001->phys, sizeof(w8001->phys), "%s/input0", serio->phys);
213 378
@@ -221,6 +386,10 @@ static int w8001_connect(struct serio *serio, struct serio_driver *drv)
221 386
222 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS); 387 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
223 input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH); 388 input_dev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
389 input_dev->keybit[BIT_WORD(BTN_TOOL_PEN)] |= BIT_MASK(BTN_TOOL_PEN);
390 input_dev->keybit[BIT_WORD(BTN_TOOL_RUBBER)] |= BIT_MASK(BTN_TOOL_RUBBER);
391 input_dev->keybit[BIT_WORD(BTN_STYLUS)] |= BIT_MASK(BTN_STYLUS);
392 input_dev->keybit[BIT_WORD(BTN_STYLUS2)] |= BIT_MASK(BTN_STYLUS2);
224 393
225 serio_set_drvdata(serio, w8001); 394 serio_set_drvdata(serio, w8001);
226 err = serio_open(serio, drv); 395 err = serio_open(serio, drv);
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index cbfef1ea7e30..6b75c9f660ae 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -125,6 +125,8 @@ int wm97xx_read_aux_adc(struct wm97xx *wm, u16 adcsel)
125{ 125{
126 int power_adc = 0, auxval; 126 int power_adc = 0, auxval;
127 u16 power = 0; 127 u16 power = 0;
128 int rc = 0;
129 int timeout = 0;
128 130
129 /* get codec */ 131 /* get codec */
130 mutex_lock(&wm->codec_mutex); 132 mutex_lock(&wm->codec_mutex);
@@ -143,7 +145,9 @@ int wm97xx_read_aux_adc(struct wm97xx *wm, u16 adcsel)
143 145
144 /* Turn polling mode on to read AUX ADC */ 146 /* Turn polling mode on to read AUX ADC */
145 wm->pen_probably_down = 1; 147 wm->pen_probably_down = 1;
146 wm->codec->poll_sample(wm, adcsel, &auxval); 148
149 while (rc != RC_VALID && timeout++ < 5)
150 rc = wm->codec->poll_sample(wm, adcsel, &auxval);
147 151
148 if (power_adc) 152 if (power_adc)
149 wm97xx_reg_write(wm, AC97_EXTENDED_MID, power | 0x8000); 153 wm97xx_reg_write(wm, AC97_EXTENDED_MID, power | 0x8000);
@@ -152,8 +156,15 @@ int wm97xx_read_aux_adc(struct wm97xx *wm, u16 adcsel)
152 156
153 wm->pen_probably_down = 0; 157 wm->pen_probably_down = 0;
154 158
159 if (timeout >= 5) {
160 dev_err(wm->dev,
161 "timeout reading auxadc %d, disabling digitiser\n",
162 adcsel);
163 wm->codec->dig_enable(wm, false);
164 }
165
155 mutex_unlock(&wm->codec_mutex); 166 mutex_unlock(&wm->codec_mutex);
156 return auxval & 0xfff; 167 return (rc == RC_VALID ? auxval & 0xfff : -EBUSY);
157} 168}
158EXPORT_SYMBOL_GPL(wm97xx_read_aux_adc); 169EXPORT_SYMBOL_GPL(wm97xx_read_aux_adc);
159 170
@@ -684,8 +695,7 @@ static int wm97xx_probe(struct device *dev)
684 touch_reg_err: 695 touch_reg_err:
685 platform_device_put(wm->touch_dev); 696 platform_device_put(wm->touch_dev);
686 touch_err: 697 touch_err:
687 platform_device_unregister(wm->battery_dev); 698 platform_device_del(wm->battery_dev);
688 wm->battery_dev = NULL;
689 batt_reg_err: 699 batt_reg_err:
690 platform_device_put(wm->battery_dev); 700 platform_device_put(wm->battery_dev);
691 batt_err: 701 batt_err:
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-25 03:22:17 -0500