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-rw-r--r--drivers/input/input.c13
-rw-r--r--drivers/input/keyboard/atkbd.c135
-rw-r--r--drivers/input/keyboard/bf54x-keys.c4
-rw-r--r--drivers/input/keyboard/hilkbd.c140
-rw-r--r--drivers/input/misc/Kconfig23
-rw-r--r--drivers/input/misc/Makefile28
-rw-r--r--drivers/input/misc/ati_remote2.c277
-rw-r--r--drivers/input/misc/rb532_button.c120
-rw-r--r--drivers/input/misc/rotary_encoder.c221
-rw-r--r--drivers/input/mouse/Kconfig11
-rw-r--r--drivers/input/mouse/Makefile9
-rw-r--r--drivers/input/mouse/hgpk.c2
-rw-r--r--drivers/input/mouse/maplemouse.c147
-rw-r--r--drivers/input/mouse/pc110pad.c5
-rw-r--r--drivers/input/serio/i8042-x86ia64io.h8
-rw-r--r--drivers/input/touchscreen/Kconfig58
-rw-r--r--drivers/input/touchscreen/Makefile3
-rw-r--r--drivers/input/touchscreen/ad7877.c844
-rw-r--r--drivers/input/touchscreen/ad7879.c782
-rw-r--r--drivers/input/touchscreen/mainstone-wm97xx.c3
-rw-r--r--drivers/input/touchscreen/ucb1400_ts.c5
-rw-r--r--drivers/input/touchscreen/wm97xx-core.c13
-rw-r--r--drivers/input/touchscreen/zylonite-wm97xx.c240
23 files changed, 2909 insertions, 182 deletions
diff --git a/drivers/input/input.c b/drivers/input/input.c
index ec3db3ade118..d44065d2e662 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c
@@ -132,6 +132,11 @@ static void input_start_autorepeat(struct input_dev *dev, int code)
132 } 132 }
133} 133}
134 134
135static void input_stop_autorepeat(struct input_dev *dev)
136{
137 del_timer(&dev->timer);
138}
139
135#define INPUT_IGNORE_EVENT 0 140#define INPUT_IGNORE_EVENT 0
136#define INPUT_PASS_TO_HANDLERS 1 141#define INPUT_PASS_TO_HANDLERS 1
137#define INPUT_PASS_TO_DEVICE 2 142#define INPUT_PASS_TO_DEVICE 2
@@ -167,6 +172,8 @@ static void input_handle_event(struct input_dev *dev,
167 __change_bit(code, dev->key); 172 __change_bit(code, dev->key);
168 if (value) 173 if (value)
169 input_start_autorepeat(dev, code); 174 input_start_autorepeat(dev, code);
175 else
176 input_stop_autorepeat(dev);
170 } 177 }
171 178
172 disposition = INPUT_PASS_TO_HANDLERS; 179 disposition = INPUT_PASS_TO_HANDLERS;
@@ -737,11 +744,11 @@ static inline void input_wakeup_procfs_readers(void)
737 744
738static unsigned int input_proc_devices_poll(struct file *file, poll_table *wait) 745static unsigned int input_proc_devices_poll(struct file *file, poll_table *wait)
739{ 746{
740 int state = input_devices_state;
741
742 poll_wait(file, &input_devices_poll_wait, wait); 747 poll_wait(file, &input_devices_poll_wait, wait);
743 if (state != input_devices_state) 748 if (file->f_version != input_devices_state) {
749 file->f_version = input_devices_state;
744 return POLLIN | POLLRDNORM; 750 return POLLIN | POLLRDNORM;
751 }
745 752
746 return 0; 753 return 0;
747} 754}
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index 45470f18d7e9..f999dc60c3b8 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -229,7 +229,8 @@ struct atkbd {
229/* 229/*
230 * System-specific ketymap fixup routine 230 * System-specific ketymap fixup routine
231 */ 231 */
232static void (*atkbd_platform_fixup)(struct atkbd *); 232static void (*atkbd_platform_fixup)(struct atkbd *, const void *data);
233static void *atkbd_platform_fixup_data;
233 234
234static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf, 235static ssize_t atkbd_attr_show_helper(struct device *dev, char *buf,
235 ssize_t (*handler)(struct atkbd *, char *)); 236 ssize_t (*handler)(struct atkbd *, char *));
@@ -834,87 +835,64 @@ static void atkbd_disconnect(struct serio *serio)
834} 835}
835 836
836/* 837/*
837 * Most special keys (Fn+F?) on Dell laptops do not generate release 838 * generate release events for the keycodes given in data
838 * events so we have to do it ourselves.
839 */ 839 */
840static void atkbd_dell_laptop_keymap_fixup(struct atkbd *atkbd) 840static void atkbd_apply_forced_release_keylist(struct atkbd* atkbd,
841 const void *data)
841{ 842{
842 static const unsigned int forced_release_keys[] = { 843 const unsigned int *keys = data;
843 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, 844 unsigned int i;
844 };
845 int i;
846 845
847 if (atkbd->set == 2) 846 if (atkbd->set == 2)
848 for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++) 847 for (i = 0; keys[i] != -1U; i++)
849 __set_bit(forced_release_keys[i], 848 __set_bit(keys[i], atkbd->force_release_mask);
850 atkbd->force_release_mask);
851} 849}
852 850
853/* 851/*
852 * Most special keys (Fn+F?) on Dell laptops do not generate release
853 * events so we have to do it ourselves.
854 */
855static unsigned int atkbd_dell_laptop_forced_release_keys[] = {
856 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8f, 0x93, -1U
857};
858
859/*
854 * Perform fixup for HP system that doesn't generate release 860 * Perform fixup for HP system that doesn't generate release
855 * for its video switch 861 * for its video switch
856 */ 862 */
857static void atkbd_hp_keymap_fixup(struct atkbd *atkbd) 863static unsigned int atkbd_hp_forced_release_keys[] = {
858{ 864 0x94, -1U
859 static const unsigned int forced_release_keys[] = { 865};
860 0x94,
861 };
862 int i;
863
864 if (atkbd->set == 2)
865 for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
866 __set_bit(forced_release_keys[i],
867 atkbd->force_release_mask);
868}
869 866
870/* 867/*
871 * Inventec system with broken key release on volume keys 868 * Inventec system with broken key release on volume keys
872 */ 869 */
873static void atkbd_inventec_keymap_fixup(struct atkbd *atkbd) 870static unsigned int atkbd_inventec_forced_release_keys[] = {
874{ 871 0xae, 0xb0, -1U
875 const unsigned int forced_release_keys[] = { 872};
876 0xae, 0xb0,
877 };
878 int i;
879
880 if (atkbd->set == 2)
881 for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
882 __set_bit(forced_release_keys[i],
883 atkbd->force_release_mask);
884}
885 873
886/* 874/*
887 * Perform fixup for HP Pavilion ZV6100 laptop that doesn't generate release 875 * Perform fixup for HP Pavilion ZV6100 laptop that doesn't generate release
888 * for its volume buttons 876 * for its volume buttons
889 */ 877 */
890static void atkbd_hp_zv6100_keymap_fixup(struct atkbd *atkbd) 878static unsigned int atkbd_hp_zv6100_forced_release_keys[] = {
891{ 879 0xae, 0xb0, -1U
892 const unsigned int forced_release_keys[] = { 880};
893 0xae, 0xb0,
894 };
895 int i;
896
897 if (atkbd->set == 2)
898 for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++)
899 __set_bit(forced_release_keys[i],
900 atkbd->force_release_mask);
901}
902 881
903/* 882/*
904 * Samsung NC10 with Fn+F? key release not working 883 * Samsung NC10 with Fn+F? key release not working
905 */ 884 */
906static void atkbd_samsung_keymap_fixup(struct atkbd *atkbd) 885static unsigned int atkbd_samsung_forced_release_keys[] = {
907{ 886 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9, -1U
908 const unsigned int forced_release_keys[] = { 887};
909 0x82, 0x83, 0x84, 0x86, 0x88, 0x89, 0xb3, 0xf7, 0xf9,
910 };
911 int i;
912 888
913 if (atkbd->set == 2) 889/*
914 for (i = 0; i < ARRAY_SIZE(forced_release_keys); i++) 890 * The volume up and volume down special keys on a Fujitsu Amilo PA 1510 laptop
915 __set_bit(forced_release_keys[i], 891 * do not generate release events so we have to do it ourselves.
916 atkbd->force_release_mask); 892 */
917} 893static unsigned int atkbd_amilo_pa1510_forced_release_keys[] = {
894 0xb0, 0xae, -1U
895};
918 896
919/* 897/*
920 * atkbd_set_keycode_table() initializes keyboard's keycode table 898 * atkbd_set_keycode_table() initializes keyboard's keycode table
@@ -967,7 +945,7 @@ static void atkbd_set_keycode_table(struct atkbd *atkbd)
967 * Perform additional fixups 945 * Perform additional fixups
968 */ 946 */
969 if (atkbd_platform_fixup) 947 if (atkbd_platform_fixup)
970 atkbd_platform_fixup(atkbd); 948 atkbd_platform_fixup(atkbd, atkbd_platform_fixup_data);
971} 949}
972 950
973/* 951/*
@@ -1492,9 +1470,11 @@ static ssize_t atkbd_show_err_count(struct atkbd *atkbd, char *buf)
1492 return sprintf(buf, "%lu\n", atkbd->err_count); 1470 return sprintf(buf, "%lu\n", atkbd->err_count);
1493} 1471}
1494 1472
1495static int __init atkbd_setup_fixup(const struct dmi_system_id *id) 1473static int __init atkbd_setup_forced_release(const struct dmi_system_id *id)
1496{ 1474{
1497 atkbd_platform_fixup = id->driver_data; 1475 atkbd_platform_fixup = atkbd_apply_forced_release_keylist;
1476 atkbd_platform_fixup_data = id->driver_data;
1477
1498 return 0; 1478 return 0;
1499} 1479}
1500 1480
@@ -1505,8 +1485,8 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
1505 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), 1485 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
1506 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */ 1486 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1507 }, 1487 },
1508 .callback = atkbd_setup_fixup, 1488 .callback = atkbd_setup_forced_release,
1509 .driver_data = atkbd_dell_laptop_keymap_fixup, 1489 .driver_data = atkbd_dell_laptop_forced_release_keys,
1510 }, 1490 },
1511 { 1491 {
1512 .ident = "Dell Laptop", 1492 .ident = "Dell Laptop",
@@ -1514,8 +1494,8 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
1514 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"), 1494 DMI_MATCH(DMI_SYS_VENDOR, "Dell Computer Corporation"),
1515 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */ 1495 DMI_MATCH(DMI_CHASSIS_TYPE, "8"), /* Portable */
1516 }, 1496 },
1517 .callback = atkbd_setup_fixup, 1497 .callback = atkbd_setup_forced_release,
1518 .driver_data = atkbd_dell_laptop_keymap_fixup, 1498 .driver_data = atkbd_dell_laptop_forced_release_keys,
1519 }, 1499 },
1520 { 1500 {
1521 .ident = "HP 2133", 1501 .ident = "HP 2133",
@@ -1523,8 +1503,8 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
1523 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1503 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1524 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"), 1504 DMI_MATCH(DMI_PRODUCT_NAME, "HP 2133"),
1525 }, 1505 },
1526 .callback = atkbd_setup_fixup, 1506 .callback = atkbd_setup_forced_release,
1527 .driver_data = atkbd_hp_keymap_fixup, 1507 .driver_data = atkbd_hp_forced_release_keys,
1528 }, 1508 },
1529 { 1509 {
1530 .ident = "HP Pavilion ZV6100", 1510 .ident = "HP Pavilion ZV6100",
@@ -1532,8 +1512,8 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
1532 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), 1512 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1533 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"), 1513 DMI_MATCH(DMI_PRODUCT_NAME, "Pavilion ZV6100"),
1534 }, 1514 },
1535 .callback = atkbd_setup_fixup, 1515 .callback = atkbd_setup_forced_release,
1536 .driver_data = atkbd_hp_zv6100_keymap_fixup, 1516 .driver_data = atkbd_hp_zv6100_forced_release_keys,
1537 }, 1517 },
1538 { 1518 {
1539 .ident = "Inventec Symphony", 1519 .ident = "Inventec Symphony",
@@ -1541,8 +1521,8 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
1541 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"), 1521 DMI_MATCH(DMI_SYS_VENDOR, "INVENTEC"),
1542 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"), 1522 DMI_MATCH(DMI_PRODUCT_NAME, "SYMPHONY 6.0/7.0"),
1543 }, 1523 },
1544 .callback = atkbd_setup_fixup, 1524 .callback = atkbd_setup_forced_release,
1545 .driver_data = atkbd_inventec_keymap_fixup, 1525 .driver_data = atkbd_inventec_forced_release_keys,
1546 }, 1526 },
1547 { 1527 {
1548 .ident = "Samsung NC10", 1528 .ident = "Samsung NC10",
@@ -1550,8 +1530,17 @@ static struct dmi_system_id atkbd_dmi_quirk_table[] __initdata = {
1550 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."), 1530 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
1551 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"), 1531 DMI_MATCH(DMI_PRODUCT_NAME, "NC10"),
1552 }, 1532 },
1553 .callback = atkbd_setup_fixup, 1533 .callback = atkbd_setup_forced_release,
1554 .driver_data = atkbd_samsung_keymap_fixup, 1534 .driver_data = atkbd_samsung_forced_release_keys,
1535 },
1536 {
1537 .ident = "Fujitsu Amilo PA 1510",
1538 .matches = {
1539 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1540 DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 1510"),
1541 },
1542 .callback = atkbd_setup_forced_release,
1543 .driver_data = atkbd_amilo_pa1510_forced_release_keys,
1555 }, 1544 },
1556 { } 1545 { }
1557}; 1546};
diff --git a/drivers/input/keyboard/bf54x-keys.c b/drivers/input/keyboard/bf54x-keys.c
index ee855c5202e8..e94b7d735aca 100644
--- a/drivers/input/keyboard/bf54x-keys.c
+++ b/drivers/input/keyboard/bf54x-keys.c
@@ -211,8 +211,8 @@ static int __devinit bfin_kpad_probe(struct platform_device *pdev)
211 211
212 if (!pdata->debounce_time || pdata->debounce_time > MAX_MULT || 212 if (!pdata->debounce_time || pdata->debounce_time > MAX_MULT ||
213 !pdata->coldrive_time || pdata->coldrive_time > MAX_MULT) { 213 !pdata->coldrive_time || pdata->coldrive_time > MAX_MULT) {
214 printk(KERN_ERR DRV_NAME 214 printk(KERN_WARNING DRV_NAME
215 ": Invalid Debounce/Columdrive Time from pdata\n"); 215 ": Invalid Debounce/Columndrive Time in platform data\n");
216 bfin_write_KPAD_MSEL(0xFF0); /* Default MSEL */ 216 bfin_write_KPAD_MSEL(0xFF0); /* Default MSEL */
217 } else { 217 } else {
218 bfin_write_KPAD_MSEL( 218 bfin_write_KPAD_MSEL(
diff --git a/drivers/input/keyboard/hilkbd.c b/drivers/input/keyboard/hilkbd.c
index aacf71f3cd44..e9d639ec283d 100644
--- a/drivers/input/keyboard/hilkbd.c
+++ b/drivers/input/keyboard/hilkbd.c
@@ -198,45 +198,28 @@ static void hil_do(unsigned char cmd, unsigned char *data, unsigned int len)
198} 198}
199 199
200 200
201/* initialise HIL */ 201/* initialize HIL */
202static int __init 202static int __devinit hil_keyb_init(void)
203hil_keyb_init(void)
204{ 203{
205 unsigned char c; 204 unsigned char c;
206 unsigned int i, kbid; 205 unsigned int i, kbid;
207 wait_queue_head_t hil_wait; 206 wait_queue_head_t hil_wait;
208 int err; 207 int err;
209 208
210 if (hil_dev.dev) { 209 if (hil_dev.dev)
211 return -ENODEV; /* already initialized */ 210 return -ENODEV; /* already initialized */
212 }
213 211
212 init_waitqueue_head(&hil_wait);
214 spin_lock_init(&hil_dev.lock); 213 spin_lock_init(&hil_dev.lock);
214
215 hil_dev.dev = input_allocate_device(); 215 hil_dev.dev = input_allocate_device();
216 if (!hil_dev.dev) 216 if (!hil_dev.dev)
217 return -ENOMEM; 217 return -ENOMEM;
218 218
219#if defined(CONFIG_HP300)
220 if (!MACH_IS_HP300) {
221 err = -ENODEV;
222 goto err1;
223 }
224 if (!hwreg_present((void *)(HILBASE + HIL_DATA))) {
225 printk(KERN_ERR "HIL: hardware register was not found\n");
226 err = -ENODEV;
227 goto err1;
228 }
229 if (!request_region(HILBASE + HIL_DATA, 2, "hil")) {
230 printk(KERN_ERR "HIL: IOPORT region already used\n");
231 err = -EIO;
232 goto err1;
233 }
234#endif
235
236 err = request_irq(HIL_IRQ, hil_interrupt, 0, "hil", hil_dev.dev_id); 219 err = request_irq(HIL_IRQ, hil_interrupt, 0, "hil", hil_dev.dev_id);
237 if (err) { 220 if (err) {
238 printk(KERN_ERR "HIL: Can't get IRQ\n"); 221 printk(KERN_ERR "HIL: Can't get IRQ\n");
239 goto err2; 222 goto err1;
240 } 223 }
241 224
242 /* Turn on interrupts */ 225 /* Turn on interrupts */
@@ -246,11 +229,9 @@ hil_keyb_init(void)
246 hil_dev.valid = 0; /* clear any pending data */ 229 hil_dev.valid = 0; /* clear any pending data */
247 hil_do(HIL_READKBDSADR, NULL, 0); 230 hil_do(HIL_READKBDSADR, NULL, 0);
248 231
249 init_waitqueue_head(&hil_wait); 232 wait_event_interruptible_timeout(hil_wait, hil_dev.valid, 3 * HZ);
250 wait_event_interruptible_timeout(hil_wait, hil_dev.valid, 3*HZ); 233 if (!hil_dev.valid)
251 if (!hil_dev.valid) {
252 printk(KERN_WARNING "HIL: timed out, assuming no keyboard present\n"); 234 printk(KERN_WARNING "HIL: timed out, assuming no keyboard present\n");
253 }
254 235
255 c = hil_dev.c; 236 c = hil_dev.c;
256 hil_dev.valid = 0; 237 hil_dev.valid = 0;
@@ -268,7 +249,7 @@ hil_keyb_init(void)
268 249
269 for (i = 0; i < HIL_KEYCODES_SET1_TBLSIZE; i++) 250 for (i = 0; i < HIL_KEYCODES_SET1_TBLSIZE; i++)
270 if (hphilkeyb_keycode[i] != KEY_RESERVED) 251 if (hphilkeyb_keycode[i] != KEY_RESERVED)
271 set_bit(hphilkeyb_keycode[i], hil_dev.dev->keybit); 252 __set_bit(hphilkeyb_keycode[i], hil_dev.dev->keybit);
272 253
273 hil_dev.dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP); 254 hil_dev.dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP);
274 hil_dev.dev->ledbit[0] = BIT_MASK(LED_NUML) | BIT_MASK(LED_CAPSL) | 255 hil_dev.dev->ledbit[0] = BIT_MASK(LED_NUML) | BIT_MASK(LED_CAPSL) |
@@ -287,34 +268,45 @@ hil_keyb_init(void)
287 err = input_register_device(hil_dev.dev); 268 err = input_register_device(hil_dev.dev);
288 if (err) { 269 if (err) {
289 printk(KERN_ERR "HIL: Can't register device\n"); 270 printk(KERN_ERR "HIL: Can't register device\n");
290 goto err3; 271 goto err2;
291 } 272 }
273
292 printk(KERN_INFO "input: %s, ID %d at 0x%08lx (irq %d) found and attached\n", 274 printk(KERN_INFO "input: %s, ID %d at 0x%08lx (irq %d) found and attached\n",
293 hil_dev.dev->name, kbid, HILBASE, HIL_IRQ); 275 hil_dev.dev->name, kbid, HILBASE, HIL_IRQ);
294 276
295 return 0; 277 return 0;
296 278
297err3: 279err2:
298 hil_do(HIL_INTOFF, NULL, 0); 280 hil_do(HIL_INTOFF, NULL, 0);
299 disable_irq(HIL_IRQ);
300 free_irq(HIL_IRQ, hil_dev.dev_id); 281 free_irq(HIL_IRQ, hil_dev.dev_id);
301err2:
302#if defined(CONFIG_HP300)
303 release_region(HILBASE + HIL_DATA, 2);
304err1: 282err1:
305#endif
306 input_free_device(hil_dev.dev); 283 input_free_device(hil_dev.dev);
307 hil_dev.dev = NULL; 284 hil_dev.dev = NULL;
308 return err; 285 return err;
309} 286}
310 287
288static void __devexit hil_keyb_exit(void)
289{
290 if (HIL_IRQ)
291 free_irq(HIL_IRQ, hil_dev.dev_id);
292
293 /* Turn off interrupts */
294 hil_do(HIL_INTOFF, NULL, 0);
295
296 input_unregister_device(hil_dev.dev);
297 hil_dev.dev = NULL;
298}
311 299
312#if defined(CONFIG_PARISC) 300#if defined(CONFIG_PARISC)
313static int __init 301static int __devinit hil_probe_chip(struct parisc_device *dev)
314hil_init_chip(struct parisc_device *dev)
315{ 302{
303 /* Only allow one HIL keyboard */
304 if (hil_dev.dev)
305 return -ENODEV;
306
316 if (!dev->irq) { 307 if (!dev->irq) {
317 printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%08lx\n", dev->hpa.start); 308 printk(KERN_WARNING "HIL: IRQ not found for HIL bus at 0x%p\n",
309 (void *)dev->hpa.start);
318 return -ENODEV; 310 return -ENODEV;
319 } 311 }
320 312
@@ -327,51 +319,79 @@ hil_init_chip(struct parisc_device *dev)
327 return hil_keyb_init(); 319 return hil_keyb_init();
328} 320}
329 321
322static int __devexit hil_remove_chip(struct parisc_device *dev)
323{
324 hil_keyb_exit();
325
326 return 0;
327}
328
330static struct parisc_device_id hil_tbl[] = { 329static struct parisc_device_id hil_tbl[] = {
331 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00073 }, 330 { HPHW_FIO, HVERSION_REV_ANY_ID, HVERSION_ANY_ID, 0x00073 },
332 { 0, } 331 { 0, }
333}; 332};
334 333
334#if 0
335/* Disabled to avoid conflicts with the HP SDC HIL drivers */
335MODULE_DEVICE_TABLE(parisc, hil_tbl); 336MODULE_DEVICE_TABLE(parisc, hil_tbl);
337#endif
336 338
337static struct parisc_driver hil_driver = { 339static struct parisc_driver hil_driver = {
338 .name = "hil", 340 .name = "hil",
339 .id_table = hil_tbl, 341 .id_table = hil_tbl,
340 .probe = hil_init_chip, 342 .probe = hil_probe_chip,
343 .remove = __devexit_p(hil_remove_chip),
341}; 344};
342#endif /* CONFIG_PARISC */
343
344 345
345static int __init hil_init(void) 346static int __init hil_init(void)
346{ 347{
347#if defined(CONFIG_PARISC)
348 return register_parisc_driver(&hil_driver); 348 return register_parisc_driver(&hil_driver);
349#else
350 return hil_keyb_init();
351#endif
352} 349}
353 350
354
355static void __exit hil_exit(void) 351static void __exit hil_exit(void)
356{ 352{
357 if (HIL_IRQ) { 353 unregister_parisc_driver(&hil_driver);
358 disable_irq(HIL_IRQ); 354}
359 free_irq(HIL_IRQ, hil_dev.dev_id); 355
356#else /* !CONFIG_PARISC */
357
358static int __init hil_init(void)
359{
360 int error;
361
362 /* Only allow one HIL keyboard */
363 if (hil_dev.dev)
364 return -EBUSY;
365
366 if (!MACH_IS_HP300)
367 return -ENODEV;
368
369 if (!hwreg_present((void *)(HILBASE + HIL_DATA))) {
370 printk(KERN_ERR "HIL: hardware register was not found\n");
371 return -ENODEV;
360 } 372 }
361 373
362 /* Turn off interrupts */ 374 if (!request_region(HILBASE + HIL_DATA, 2, "hil")) {
363 hil_do(HIL_INTOFF, NULL, 0); 375 printk(KERN_ERR "HIL: IOPORT region already used\n");
376 return -EIO;
377 }
364 378
365 input_unregister_device(hil_dev.dev); 379 error = hil_keyb_init();
380 if (error) {
381 release_region(HILBASE + HIL_DATA, 2);
382 return error;
383 }
366 384
367 hil_dev.dev = NULL; 385 return 0;
386}
368 387
369#if defined(CONFIG_PARISC) 388static void __exit hil_exit(void)
370 unregister_parisc_driver(&hil_driver); 389{
371#else 390 hil_keyb_exit();
372 release_region(HILBASE+HIL_DATA, 2); 391 release_region(HILBASE + HIL_DATA, 2);
373#endif
374} 392}
375 393
394#endif /* CONFIG_PARISC */
395
376module_init(hil_init); 396module_init(hil_init);
377module_exit(hil_exit); 397module_exit(hil_exit);
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 67e5553f699a..203abac1e23e 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -227,4 +227,27 @@ config INPUT_PCF50633_PMU
227 Say Y to include support for delivering PMU events via input 227 Say Y to include support for delivering PMU events via input
228 layer on NXP PCF50633. 228 layer on NXP PCF50633.
229 229
230config INPUT_GPIO_ROTARY_ENCODER
231 tristate "Rotary encoders connected to GPIO pins"
232 depends on GPIOLIB && GENERIC_GPIO
233 help
234 Say Y here to add support for rotary encoders connected to GPIO lines.
235 Check file:Documentation/incput/rotary_encoder.txt for more
236 information.
237
238 To compile this driver as a module, choose M here: the
239 module will be called rotary_encoder.
240
241config INPUT_RB532_BUTTON
242 tristate "Mikrotik Routerboard 532 button interface"
243 depends on MIKROTIK_RB532
244 depends on GPIOLIB && GENERIC_GPIO
245 select INPUT_POLLDEV
246 help
247 Say Y here if you want support for the S1 button built into
248 Mikrotik's Routerboard 532.
249
250 To compile this driver as a module, choose M here: the
251 module will be called rb532_button.
252
230endif 253endif
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index bb62e6efacf3..eb3f407baedf 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -4,21 +4,23 @@
4 4
5# Each configuration option enables a list of files. 5# Each configuration option enables a list of files.
6 6
7obj-$(CONFIG_INPUT_SPARCSPKR) += sparcspkr.o 7obj-$(CONFIG_INPUT_APANEL) += apanel.o
8obj-$(CONFIG_INPUT_PCSPKR) += pcspkr.o
9obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o
10obj-$(CONFIG_INPUT_IXP4XX_BEEPER) += ixp4xx-beeper.o
11obj-$(CONFIG_INPUT_COBALT_BTNS) += cobalt_btns.o
12obj-$(CONFIG_INPUT_WISTRON_BTNS) += wistron_btns.o
13obj-$(CONFIG_INPUT_ATLAS_BTNS) += atlas_btns.o
14obj-$(CONFIG_INPUT_ATI_REMOTE) += ati_remote.o 8obj-$(CONFIG_INPUT_ATI_REMOTE) += ati_remote.o
15obj-$(CONFIG_INPUT_ATI_REMOTE2) += ati_remote2.o 9obj-$(CONFIG_INPUT_ATI_REMOTE2) += ati_remote2.o
16obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o 10obj-$(CONFIG_INPUT_ATLAS_BTNS) += atlas_btns.o
17obj-$(CONFIG_INPUT_POWERMATE) += powermate.o
18obj-$(CONFIG_INPUT_YEALINK) += yealink.o
19obj-$(CONFIG_INPUT_CM109) += cm109.o 11obj-$(CONFIG_INPUT_CM109) += cm109.o
12obj-$(CONFIG_INPUT_COBALT_BTNS) += cobalt_btns.o
20obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o 13obj-$(CONFIG_HP_SDC_RTC) += hp_sdc_rtc.o
21obj-$(CONFIG_INPUT_UINPUT) += uinput.o 14obj-$(CONFIG_INPUT_IXP4XX_BEEPER) += ixp4xx-beeper.o
22obj-$(CONFIG_INPUT_APANEL) += apanel.o 15obj-$(CONFIG_INPUT_KEYSPAN_REMOTE) += keyspan_remote.o
23obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o 16obj-$(CONFIG_INPUT_M68K_BEEP) += m68kspkr.o
24obj-$(CONFIG_INPUT_PCF50633_PMU) += pcf50633-input.o 17obj-$(CONFIG_INPUT_PCF50633_PMU) += pcf50633-input.o
18obj-$(CONFIG_INPUT_PCSPKR) += pcspkr.o
19obj-$(CONFIG_INPUT_POWERMATE) += powermate.o
20obj-$(CONFIG_INPUT_RB532_BUTTON) += rb532_button.o
21obj-$(CONFIG_INPUT_GPIO_ROTARY_ENCODER) += rotary_encoder.o
22obj-$(CONFIG_INPUT_SGI_BTNS) += sgi_btns.o
23obj-$(CONFIG_INPUT_SPARCSPKR) += sparcspkr.o
24obj-$(CONFIG_INPUT_UINPUT) += uinput.o
25obj-$(CONFIG_INPUT_WISTRON_BTNS) += wistron_btns.o
26obj-$(CONFIG_INPUT_YEALINK) += yealink.o
diff --git a/drivers/input/misc/ati_remote2.c b/drivers/input/misc/ati_remote2.c
index 3c9988dc0e9f..922c05141585 100644
--- a/drivers/input/misc/ati_remote2.c
+++ b/drivers/input/misc/ati_remote2.c
@@ -31,12 +31,73 @@ MODULE_LICENSE("GPL");
31 * newly configured "channel". 31 * newly configured "channel".
32 */ 32 */
33 33
34static unsigned int channel_mask = 0xFFFF; 34enum {
35module_param(channel_mask, uint, 0644); 35 ATI_REMOTE2_MAX_CHANNEL_MASK = 0xFFFF,
36 ATI_REMOTE2_MAX_MODE_MASK = 0x1F,
37};
38
39static int ati_remote2_set_mask(const char *val,
40 struct kernel_param *kp, unsigned int max)
41{
42 unsigned long mask;
43 int ret;
44
45 if (!val)
46 return -EINVAL;
47
48 ret = strict_strtoul(val, 0, &mask);
49 if (ret)
50 return ret;
51
52 if (mask & ~max)
53 return -EINVAL;
54
55 *(unsigned int *)kp->arg = mask;
56
57 return 0;
58}
59
60static int ati_remote2_set_channel_mask(const char *val,
61 struct kernel_param *kp)
62{
63 pr_debug("%s()\n", __func__);
64
65 return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_CHANNEL_MASK);
66}
67
68static int ati_remote2_get_channel_mask(char *buffer, struct kernel_param *kp)
69{
70 pr_debug("%s()\n", __func__);
71
72 return sprintf(buffer, "0x%04x", *(unsigned int *)kp->arg);
73}
74
75static int ati_remote2_set_mode_mask(const char *val, struct kernel_param *kp)
76{
77 pr_debug("%s()\n", __func__);
78
79 return ati_remote2_set_mask(val, kp, ATI_REMOTE2_MAX_MODE_MASK);
80}
81
82static int ati_remote2_get_mode_mask(char *buffer, struct kernel_param *kp)
83{
84 pr_debug("%s()\n", __func__);
85
86 return sprintf(buffer, "0x%02x", *(unsigned int *)kp->arg);
87}
88
89static unsigned int channel_mask = ATI_REMOTE2_MAX_CHANNEL_MASK;
90#define param_check_channel_mask(name, p) __param_check(name, p, unsigned int)
91#define param_set_channel_mask ati_remote2_set_channel_mask
92#define param_get_channel_mask ati_remote2_get_channel_mask
93module_param(channel_mask, channel_mask, 0644);
36MODULE_PARM_DESC(channel_mask, "Bitmask of channels to accept <15:Channel16>...<1:Channel2><0:Channel1>"); 94MODULE_PARM_DESC(channel_mask, "Bitmask of channels to accept <15:Channel16>...<1:Channel2><0:Channel1>");
37 95
38static unsigned int mode_mask = 0x1F; 96static unsigned int mode_mask = ATI_REMOTE2_MAX_MODE_MASK;
39module_param(mode_mask, uint, 0644); 97#define param_check_mode_mask(name, p) __param_check(name, p, unsigned int)
98#define param_set_mode_mask ati_remote2_set_mode_mask
99#define param_get_mode_mask ati_remote2_get_mode_mask
100module_param(mode_mask, mode_mask, 0644);
40MODULE_PARM_DESC(mode_mask, "Bitmask of modes to accept <4:PC><3:AUX4><2:AUX3><1:AUX2><0:AUX1>"); 101MODULE_PARM_DESC(mode_mask, "Bitmask of modes to accept <4:PC><3:AUX4><2:AUX3><1:AUX2><0:AUX1>");
41 102
42static struct usb_device_id ati_remote2_id_table[] = { 103static struct usb_device_id ati_remote2_id_table[] = {
@@ -133,12 +194,18 @@ struct ati_remote2 {
133 u16 keycode[ATI_REMOTE2_MODES][ARRAY_SIZE(ati_remote2_key_table)]; 194 u16 keycode[ATI_REMOTE2_MODES][ARRAY_SIZE(ati_remote2_key_table)];
134 195
135 unsigned int flags; 196 unsigned int flags;
197
198 unsigned int channel_mask;
199 unsigned int mode_mask;
136}; 200};
137 201
138static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id); 202static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id);
139static void ati_remote2_disconnect(struct usb_interface *interface); 203static void ati_remote2_disconnect(struct usb_interface *interface);
140static int ati_remote2_suspend(struct usb_interface *interface, pm_message_t message); 204static int ati_remote2_suspend(struct usb_interface *interface, pm_message_t message);
141static int ati_remote2_resume(struct usb_interface *interface); 205static int ati_remote2_resume(struct usb_interface *interface);
206static int ati_remote2_reset_resume(struct usb_interface *interface);
207static int ati_remote2_pre_reset(struct usb_interface *interface);
208static int ati_remote2_post_reset(struct usb_interface *interface);
142 209
143static struct usb_driver ati_remote2_driver = { 210static struct usb_driver ati_remote2_driver = {
144 .name = "ati_remote2", 211 .name = "ati_remote2",
@@ -147,6 +214,9 @@ static struct usb_driver ati_remote2_driver = {
147 .id_table = ati_remote2_id_table, 214 .id_table = ati_remote2_id_table,
148 .suspend = ati_remote2_suspend, 215 .suspend = ati_remote2_suspend,
149 .resume = ati_remote2_resume, 216 .resume = ati_remote2_resume,
217 .reset_resume = ati_remote2_reset_resume,
218 .pre_reset = ati_remote2_pre_reset,
219 .post_reset = ati_remote2_post_reset,
150 .supports_autosuspend = 1, 220 .supports_autosuspend = 1,
151}; 221};
152 222
@@ -238,7 +308,7 @@ static void ati_remote2_input_mouse(struct ati_remote2 *ar2)
238 308
239 channel = data[0] >> 4; 309 channel = data[0] >> 4;
240 310
241 if (!((1 << channel) & channel_mask)) 311 if (!((1 << channel) & ar2->channel_mask))
242 return; 312 return;
243 313
244 mode = data[0] & 0x0F; 314 mode = data[0] & 0x0F;
@@ -250,7 +320,7 @@ static void ati_remote2_input_mouse(struct ati_remote2 *ar2)
250 return; 320 return;
251 } 321 }
252 322
253 if (!((1 << mode) & mode_mask)) 323 if (!((1 << mode) & ar2->mode_mask))
254 return; 324 return;
255 325
256 input_event(idev, EV_REL, REL_X, (s8) data[1]); 326 input_event(idev, EV_REL, REL_X, (s8) data[1]);
@@ -277,7 +347,7 @@ static void ati_remote2_input_key(struct ati_remote2 *ar2)
277 347
278 channel = data[0] >> 4; 348 channel = data[0] >> 4;
279 349
280 if (!((1 << channel) & channel_mask)) 350 if (!((1 << channel) & ar2->channel_mask))
281 return; 351 return;
282 352
283 mode = data[0] & 0x0F; 353 mode = data[0] & 0x0F;
@@ -305,7 +375,7 @@ static void ati_remote2_input_key(struct ati_remote2 *ar2)
305 ar2->mode = mode; 375 ar2->mode = mode;
306 } 376 }
307 377
308 if (!((1 << mode) & mode_mask)) 378 if (!((1 << mode) & ar2->mode_mask))
309 return; 379 return;
310 380
311 index = ati_remote2_lookup(hw_code); 381 index = ati_remote2_lookup(hw_code);
@@ -410,7 +480,7 @@ static int ati_remote2_getkeycode(struct input_dev *idev,
410 int index, mode; 480 int index, mode;
411 481
412 mode = scancode >> 8; 482 mode = scancode >> 8;
413 if (mode > ATI_REMOTE2_PC || !((1 << mode) & mode_mask)) 483 if (mode > ATI_REMOTE2_PC || !((1 << mode) & ar2->mode_mask))
414 return -EINVAL; 484 return -EINVAL;
415 485
416 index = ati_remote2_lookup(scancode & 0xFF); 486 index = ati_remote2_lookup(scancode & 0xFF);
@@ -427,7 +497,7 @@ static int ati_remote2_setkeycode(struct input_dev *idev, int scancode, int keyc
427 int index, mode, old_keycode; 497 int index, mode, old_keycode;
428 498
429 mode = scancode >> 8; 499 mode = scancode >> 8;
430 if (mode > ATI_REMOTE2_PC || !((1 << mode) & mode_mask)) 500 if (mode > ATI_REMOTE2_PC || !((1 << mode) & ar2->mode_mask))
431 return -EINVAL; 501 return -EINVAL;
432 502
433 index = ati_remote2_lookup(scancode & 0xFF); 503 index = ati_remote2_lookup(scancode & 0xFF);
@@ -550,7 +620,7 @@ static void ati_remote2_urb_cleanup(struct ati_remote2 *ar2)
550 } 620 }
551} 621}
552 622
553static int ati_remote2_setup(struct ati_remote2 *ar2) 623static int ati_remote2_setup(struct ati_remote2 *ar2, unsigned int ch_mask)
554{ 624{
555 int r, i, channel; 625 int r, i, channel;
556 626
@@ -565,8 +635,8 @@ static int ati_remote2_setup(struct ati_remote2 *ar2)
565 635
566 channel = 0; 636 channel = 0;
567 for (i = 0; i < 16; i++) { 637 for (i = 0; i < 16; i++) {
568 if ((1 << i) & channel_mask) { 638 if ((1 << i) & ch_mask) {
569 if (!(~(1 << i) & 0xFFFF & channel_mask)) 639 if (!(~(1 << i) & ch_mask))
570 channel = i + 1; 640 channel = i + 1;
571 break; 641 break;
572 } 642 }
@@ -585,6 +655,99 @@ static int ati_remote2_setup(struct ati_remote2 *ar2)
585 return 0; 655 return 0;
586} 656}
587 657
658static ssize_t ati_remote2_show_channel_mask(struct device *dev,
659 struct device_attribute *attr,
660 char *buf)
661{
662 struct usb_device *udev = to_usb_device(dev);
663 struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
664 struct ati_remote2 *ar2 = usb_get_intfdata(intf);
665
666 return sprintf(buf, "0x%04x\n", ar2->channel_mask);
667}
668
669static ssize_t ati_remote2_store_channel_mask(struct device *dev,
670 struct device_attribute *attr,
671 const char *buf, size_t count)
672{
673 struct usb_device *udev = to_usb_device(dev);
674 struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
675 struct ati_remote2 *ar2 = usb_get_intfdata(intf);
676 unsigned long mask;
677 int r;
678
679 if (strict_strtoul(buf, 0, &mask))
680 return -EINVAL;
681
682 if (mask & ~ATI_REMOTE2_MAX_CHANNEL_MASK)
683 return -EINVAL;
684
685 r = usb_autopm_get_interface(ar2->intf[0]);
686 if (r) {
687 dev_err(&ar2->intf[0]->dev,
688 "%s(): usb_autopm_get_interface() = %d\n", __func__, r);
689 return r;
690 }
691
692 mutex_lock(&ati_remote2_mutex);
693
694 if (mask != ar2->channel_mask && !ati_remote2_setup(ar2, mask))
695 ar2->channel_mask = mask;
696
697 mutex_unlock(&ati_remote2_mutex);
698
699 usb_autopm_put_interface(ar2->intf[0]);
700
701 return count;
702}
703
704static ssize_t ati_remote2_show_mode_mask(struct device *dev,
705 struct device_attribute *attr,
706 char *buf)
707{
708 struct usb_device *udev = to_usb_device(dev);
709 struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
710 struct ati_remote2 *ar2 = usb_get_intfdata(intf);
711
712 return sprintf(buf, "0x%02x\n", ar2->mode_mask);
713}
714
715static ssize_t ati_remote2_store_mode_mask(struct device *dev,
716 struct device_attribute *attr,
717 const char *buf, size_t count)
718{
719 struct usb_device *udev = to_usb_device(dev);
720 struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
721 struct ati_remote2 *ar2 = usb_get_intfdata(intf);
722 unsigned long mask;
723
724 if (strict_strtoul(buf, 0, &mask))
725 return -EINVAL;
726
727 if (mask & ~ATI_REMOTE2_MAX_MODE_MASK)
728 return -EINVAL;
729
730 ar2->mode_mask = mask;
731
732 return count;
733}
734
735static DEVICE_ATTR(channel_mask, 0644, ati_remote2_show_channel_mask,
736 ati_remote2_store_channel_mask);
737
738static DEVICE_ATTR(mode_mask, 0644, ati_remote2_show_mode_mask,
739 ati_remote2_store_mode_mask);
740
741static struct attribute *ati_remote2_attrs[] = {
742 &dev_attr_channel_mask.attr,
743 &dev_attr_mode_mask.attr,
744 NULL,
745};
746
747static struct attribute_group ati_remote2_attr_group = {
748 .attrs = ati_remote2_attrs,
749};
750
588static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id) 751static int ati_remote2_probe(struct usb_interface *interface, const struct usb_device_id *id)
589{ 752{
590 struct usb_device *udev = interface_to_usbdev(interface); 753 struct usb_device *udev = interface_to_usbdev(interface);
@@ -615,7 +778,10 @@ static int ati_remote2_probe(struct usb_interface *interface, const struct usb_d
615 if (r) 778 if (r)
616 goto fail2; 779 goto fail2;
617 780
618 r = ati_remote2_setup(ar2); 781 ar2->channel_mask = channel_mask;
782 ar2->mode_mask = mode_mask;
783
784 r = ati_remote2_setup(ar2, ar2->channel_mask);
619 if (r) 785 if (r)
620 goto fail2; 786 goto fail2;
621 787
@@ -624,19 +790,24 @@ static int ati_remote2_probe(struct usb_interface *interface, const struct usb_d
624 790
625 strlcat(ar2->name, "ATI Remote Wonder II", sizeof(ar2->name)); 791 strlcat(ar2->name, "ATI Remote Wonder II", sizeof(ar2->name));
626 792
627 r = ati_remote2_input_init(ar2); 793 r = sysfs_create_group(&udev->dev.kobj, &ati_remote2_attr_group);
628 if (r) 794 if (r)
629 goto fail2; 795 goto fail2;
630 796
797 r = ati_remote2_input_init(ar2);
798 if (r)
799 goto fail3;
800
631 usb_set_intfdata(interface, ar2); 801 usb_set_intfdata(interface, ar2);
632 802
633 interface->needs_remote_wakeup = 1; 803 interface->needs_remote_wakeup = 1;
634 804
635 return 0; 805 return 0;
636 806
807 fail3:
808 sysfs_remove_group(&udev->dev.kobj, &ati_remote2_attr_group);
637 fail2: 809 fail2:
638 ati_remote2_urb_cleanup(ar2); 810 ati_remote2_urb_cleanup(ar2);
639
640 usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]); 811 usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
641 fail1: 812 fail1:
642 kfree(ar2); 813 kfree(ar2);
@@ -657,6 +828,8 @@ static void ati_remote2_disconnect(struct usb_interface *interface)
657 828
658 input_unregister_device(ar2->idev); 829 input_unregister_device(ar2->idev);
659 830
831 sysfs_remove_group(&ar2->udev->dev.kobj, &ati_remote2_attr_group);
832
660 ati_remote2_urb_cleanup(ar2); 833 ati_remote2_urb_cleanup(ar2);
661 834
662 usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]); 835 usb_driver_release_interface(&ati_remote2_driver, ar2->intf[1]);
@@ -715,6 +888,78 @@ static int ati_remote2_resume(struct usb_interface *interface)
715 return r; 888 return r;
716} 889}
717 890
891static int ati_remote2_reset_resume(struct usb_interface *interface)
892{
893 struct ati_remote2 *ar2;
894 struct usb_host_interface *alt = interface->cur_altsetting;
895 int r = 0;
896
897 if (alt->desc.bInterfaceNumber)
898 return 0;
899
900 ar2 = usb_get_intfdata(interface);
901
902 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
903
904 mutex_lock(&ati_remote2_mutex);
905
906 r = ati_remote2_setup(ar2, ar2->channel_mask);
907 if (r)
908 goto out;
909
910 if (ar2->flags & ATI_REMOTE2_OPENED)
911 r = ati_remote2_submit_urbs(ar2);
912
913 if (!r)
914 ar2->flags &= ~ATI_REMOTE2_SUSPENDED;
915
916 out:
917 mutex_unlock(&ati_remote2_mutex);
918
919 return r;
920}
921
922static int ati_remote2_pre_reset(struct usb_interface *interface)
923{
924 struct ati_remote2 *ar2;
925 struct usb_host_interface *alt = interface->cur_altsetting;
926
927 if (alt->desc.bInterfaceNumber)
928 return 0;
929
930 ar2 = usb_get_intfdata(interface);
931
932 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
933
934 mutex_lock(&ati_remote2_mutex);
935
936 if (ar2->flags == ATI_REMOTE2_OPENED)
937 ati_remote2_kill_urbs(ar2);
938
939 return 0;
940}
941
942static int ati_remote2_post_reset(struct usb_interface *interface)
943{
944 struct ati_remote2 *ar2;
945 struct usb_host_interface *alt = interface->cur_altsetting;
946 int r = 0;
947
948 if (alt->desc.bInterfaceNumber)
949 return 0;
950
951 ar2 = usb_get_intfdata(interface);
952
953 dev_dbg(&ar2->intf[0]->dev, "%s()\n", __func__);
954
955 if (ar2->flags == ATI_REMOTE2_OPENED)
956 r = ati_remote2_submit_urbs(ar2);
957
958 mutex_unlock(&ati_remote2_mutex);
959
960 return r;
961}
962
718static int __init ati_remote2_init(void) 963static int __init ati_remote2_init(void)
719{ 964{
720 int r; 965 int r;
diff --git a/drivers/input/misc/rb532_button.c b/drivers/input/misc/rb532_button.c
new file mode 100644
index 000000000000..e2c7f622a0b5
--- /dev/null
+++ b/drivers/input/misc/rb532_button.c
@@ -0,0 +1,120 @@
1/*
2 * Support for the S1 button on Routerboard 532
3 *
4 * Copyright (C) 2009 Phil Sutter <n0-1@freewrt.org>
5 */
6
7#include <linux/input-polldev.h>
8#include <linux/module.h>
9#include <linux/platform_device.h>
10
11#include <asm/mach-rc32434/gpio.h>
12#include <asm/mach-rc32434/rb.h>
13
14#define DRV_NAME "rb532-button"
15
16#define RB532_BTN_RATE 100 /* msec */
17#define RB532_BTN_KSYM BTN_0
18
19/* The S1 button state is provided by GPIO pin 1. But as this
20 * pin is also used for uart input as alternate function, the
21 * operational modes must be switched first:
22 * 1) disable uart using set_latch_u5()
23 * 2) turn off alternate function implicitly through
24 * gpio_direction_input()
25 * 3) read the GPIO's current value
26 * 4) undo step 2 by enabling alternate function (in this
27 * mode the GPIO direction is fixed, so no change needed)
28 * 5) turn on uart again
29 * The GPIO value occurs to be inverted, so pin high means
30 * button is not pressed.
31 */
32static bool rb532_button_pressed(void)
33{
34 int val;
35
36 set_latch_u5(0, LO_FOFF);
37 gpio_direction_input(GPIO_BTN_S1);
38
39 val = gpio_get_value(GPIO_BTN_S1);
40
41 rb532_gpio_set_func(GPIO_BTN_S1);
42 set_latch_u5(LO_FOFF, 0);
43
44 return !val;
45}
46
47static void rb532_button_poll(struct input_polled_dev *poll_dev)
48{
49 input_report_key(poll_dev->input, RB532_BTN_KSYM,
50 rb532_button_pressed());
51 input_sync(poll_dev->input);
52}
53
54static int __devinit rb532_button_probe(struct platform_device *pdev)
55{
56 struct input_polled_dev *poll_dev;
57 int error;
58
59 poll_dev = input_allocate_polled_device();
60 if (!poll_dev)
61 return -ENOMEM;
62
63 poll_dev->poll = rb532_button_poll;
64 poll_dev->poll_interval = RB532_BTN_RATE;
65
66 poll_dev->input->name = "rb532 button";
67 poll_dev->input->phys = "rb532/button0";
68 poll_dev->input->id.bustype = BUS_HOST;
69 poll_dev->input->dev.parent = &pdev->dev;
70
71 dev_set_drvdata(&pdev->dev, poll_dev);
72
73 input_set_capability(poll_dev->input, EV_KEY, RB532_BTN_KSYM);
74
75 error = input_register_polled_device(poll_dev);
76 if (error) {
77 input_free_polled_device(poll_dev);
78 return error;
79 }
80
81 return 0;
82}
83
84static int __devexit rb532_button_remove(struct platform_device *pdev)
85{
86 struct input_polled_dev *poll_dev = dev_get_drvdata(&pdev->dev);
87
88 input_unregister_polled_device(poll_dev);
89 input_free_polled_device(poll_dev);
90 dev_set_drvdata(&pdev->dev, NULL);
91
92 return 0;
93}
94
95static struct platform_driver rb532_button_driver = {
96 .probe = rb532_button_probe,
97 .remove = __devexit_p(rb532_button_remove),
98 .driver = {
99 .name = DRV_NAME,
100 .owner = THIS_MODULE,
101 },
102};
103
104static int __init rb532_button_init(void)
105{
106 return platform_driver_register(&rb532_button_driver);
107}
108
109static void __exit rb532_button_exit(void)
110{
111 platform_driver_unregister(&rb532_button_driver);
112}
113
114module_init(rb532_button_init);
115module_exit(rb532_button_exit);
116
117MODULE_AUTHOR("Phil Sutter <n0-1@freewrt.org>");
118MODULE_LICENSE("GPL");
119MODULE_DESCRIPTION("Support for S1 button on Routerboard 532");
120MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c
new file mode 100644
index 000000000000..5bb3ab51b8c6
--- /dev/null
+++ b/drivers/input/misc/rotary_encoder.c
@@ -0,0 +1,221 @@
1/*
2 * rotary_encoder.c
3 *
4 * (c) 2009 Daniel Mack <daniel@caiaq.de>
5 *
6 * state machine code inspired by code from Tim Ruetz
7 *
8 * A generic driver for rotary encoders connected to GPIO lines.
9 * See file:Documentation/input/rotary_encoder.txt for more information
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
14 */
15
16#include <linux/kernel.h>
17#include <linux/module.h>
18#include <linux/init.h>
19#include <linux/interrupt.h>
20#include <linux/input.h>
21#include <linux/device.h>
22#include <linux/platform_device.h>
23#include <linux/gpio.h>
24#include <linux/rotary_encoder.h>
25
26#define DRV_NAME "rotary-encoder"
27
28struct rotary_encoder {
29 unsigned int irq_a;
30 unsigned int irq_b;
31 unsigned int pos;
32 unsigned int armed;
33 unsigned int dir;
34 struct input_dev *input;
35 struct rotary_encoder_platform_data *pdata;
36};
37
38static irqreturn_t rotary_encoder_irq(int irq, void *dev_id)
39{
40 struct rotary_encoder *encoder = dev_id;
41 struct rotary_encoder_platform_data *pdata = encoder->pdata;
42 int a = !!gpio_get_value(pdata->gpio_a);
43 int b = !!gpio_get_value(pdata->gpio_b);
44 int state;
45
46 a ^= pdata->inverted_a;
47 b ^= pdata->inverted_b;
48 state = (a << 1) | b;
49
50 switch (state) {
51
52 case 0x0:
53 if (!encoder->armed)
54 break;
55
56 if (encoder->dir) {
57 /* turning counter-clockwise */
58 encoder->pos += pdata->steps;
59 encoder->pos--;
60 encoder->pos %= pdata->steps;
61 } else {
62 /* turning clockwise */
63 encoder->pos++;
64 encoder->pos %= pdata->steps;
65 }
66
67 input_report_abs(encoder->input, pdata->axis, encoder->pos);
68 input_sync(encoder->input);
69
70 encoder->armed = 0;
71 break;
72
73 case 0x1:
74 case 0x2:
75 if (encoder->armed)
76 encoder->dir = state - 1;
77 break;
78
79 case 0x3:
80 encoder->armed = 1;
81 break;
82 }
83
84 return IRQ_HANDLED;
85}
86
87static int __devinit rotary_encoder_probe(struct platform_device *pdev)
88{
89 struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
90 struct rotary_encoder *encoder;
91 struct input_dev *input;
92 int err;
93
94 if (!pdata || !pdata->steps) {
95 dev_err(&pdev->dev, "invalid platform data\n");
96 return -ENOENT;
97 }
98
99 encoder = kzalloc(sizeof(struct rotary_encoder), GFP_KERNEL);
100 input = input_allocate_device();
101 if (!encoder || !input) {
102 dev_err(&pdev->dev, "failed to allocate memory for device\n");
103 err = -ENOMEM;
104 goto exit_free_mem;
105 }
106
107 encoder->input = input;
108 encoder->pdata = pdata;
109 encoder->irq_a = gpio_to_irq(pdata->gpio_a);
110 encoder->irq_b = gpio_to_irq(pdata->gpio_b);
111
112 /* create and register the input driver */
113 input->name = pdev->name;
114 input->id.bustype = BUS_HOST;
115 input->dev.parent = &pdev->dev;
116 input->evbit[0] = BIT_MASK(EV_ABS);
117 input_set_abs_params(encoder->input,
118 pdata->axis, 0, pdata->steps, 0, 1);
119
120 err = input_register_device(input);
121 if (err) {
122 dev_err(&pdev->dev, "failed to register input device\n");
123 goto exit_free_mem;
124 }
125
126 /* request the GPIOs */
127 err = gpio_request(pdata->gpio_a, DRV_NAME);
128 if (err) {
129 dev_err(&pdev->dev, "unable to request GPIO %d\n",
130 pdata->gpio_a);
131 goto exit_unregister_input;
132 }
133
134 err = gpio_request(pdata->gpio_b, DRV_NAME);
135 if (err) {
136 dev_err(&pdev->dev, "unable to request GPIO %d\n",
137 pdata->gpio_b);
138 goto exit_free_gpio_a;
139 }
140
141 /* request the IRQs */
142 err = request_irq(encoder->irq_a, &rotary_encoder_irq,
143 IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
144 DRV_NAME, encoder);
145 if (err) {
146 dev_err(&pdev->dev, "unable to request IRQ %d\n",
147 encoder->irq_a);
148 goto exit_free_gpio_b;
149 }
150
151 err = request_irq(encoder->irq_b, &rotary_encoder_irq,
152 IORESOURCE_IRQ_HIGHEDGE | IORESOURCE_IRQ_LOWEDGE,
153 DRV_NAME, encoder);
154 if (err) {
155 dev_err(&pdev->dev, "unable to request IRQ %d\n",
156 encoder->irq_b);
157 goto exit_free_irq_a;
158 }
159
160 platform_set_drvdata(pdev, encoder);
161
162 return 0;
163
164exit_free_irq_a:
165 free_irq(encoder->irq_a, encoder);
166exit_free_gpio_b:
167 gpio_free(pdata->gpio_b);
168exit_free_gpio_a:
169 gpio_free(pdata->gpio_a);
170exit_unregister_input:
171 input_unregister_device(input);
172 input = NULL; /* so we don't try to free it */
173exit_free_mem:
174 input_free_device(input);
175 kfree(encoder);
176 return err;
177}
178
179static int __devexit rotary_encoder_remove(struct platform_device *pdev)
180{
181 struct rotary_encoder *encoder = platform_get_drvdata(pdev);
182 struct rotary_encoder_platform_data *pdata = pdev->dev.platform_data;
183
184 free_irq(encoder->irq_a, encoder);
185 free_irq(encoder->irq_b, encoder);
186 gpio_free(pdata->gpio_a);
187 gpio_free(pdata->gpio_b);
188 input_unregister_device(encoder->input);
189 platform_set_drvdata(pdev, NULL);
190 kfree(encoder);
191
192 return 0;
193}
194
195static struct platform_driver rotary_encoder_driver = {
196 .probe = rotary_encoder_probe,
197 .remove = __devexit_p(rotary_encoder_remove),
198 .driver = {
199 .name = DRV_NAME,
200 .owner = THIS_MODULE,
201 }
202};
203
204static int __init rotary_encoder_init(void)
205{
206 return platform_driver_register(&rotary_encoder_driver);
207}
208
209static void __exit rotary_encoder_exit(void)
210{
211 platform_driver_unregister(&rotary_encoder_driver);
212}
213
214module_init(rotary_encoder_init);
215module_exit(rotary_encoder_exit);
216
217MODULE_ALIAS("platform:" DRV_NAME);
218MODULE_DESCRIPTION("GPIO rotary encoder driver");
219MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
220MODULE_LICENSE("GPL v2");
221
diff --git a/drivers/input/mouse/Kconfig b/drivers/input/mouse/Kconfig
index 4f38e6f7dfdd..c66cc3d08c2f 100644
--- a/drivers/input/mouse/Kconfig
+++ b/drivers/input/mouse/Kconfig
@@ -292,4 +292,15 @@ config MOUSE_PXA930_TRKBALL
292 help 292 help
293 Say Y here to support PXA930 Trackball mouse. 293 Say Y here to support PXA930 Trackball mouse.
294 294
295config MOUSE_MAPLE
296 tristate "Maple mouse (for the Dreamcast)"
297 depends on MAPLE
298 help
299 This driver supports the Maple mouse on the SEGA Dreamcast.
300
301 Most Dreamcast users, who have a mouse, will say Y here.
302
303 To compile this driver as a module choose M here: the module will be
304 called maplemouse.
305
295endif 306endif
diff --git a/drivers/input/mouse/Makefile b/drivers/input/mouse/Makefile
index 8c8a1f236e28..472189468d67 100644
--- a/drivers/input/mouse/Makefile
+++ b/drivers/input/mouse/Makefile
@@ -6,18 +6,19 @@
6 6
7obj-$(CONFIG_MOUSE_AMIGA) += amimouse.o 7obj-$(CONFIG_MOUSE_AMIGA) += amimouse.o
8obj-$(CONFIG_MOUSE_APPLETOUCH) += appletouch.o 8obj-$(CONFIG_MOUSE_APPLETOUCH) += appletouch.o
9obj-$(CONFIG_MOUSE_BCM5974) += bcm5974.o
10obj-$(CONFIG_MOUSE_ATARI) += atarimouse.o 9obj-$(CONFIG_MOUSE_ATARI) += atarimouse.o
11obj-$(CONFIG_MOUSE_RISCPC) += rpcmouse.o 10obj-$(CONFIG_MOUSE_BCM5974) += bcm5974.o
11obj-$(CONFIG_MOUSE_GPIO) += gpio_mouse.o
12obj-$(CONFIG_MOUSE_HIL) += hil_ptr.o
12obj-$(CONFIG_MOUSE_INPORT) += inport.o 13obj-$(CONFIG_MOUSE_INPORT) += inport.o
13obj-$(CONFIG_MOUSE_LOGIBM) += logibm.o 14obj-$(CONFIG_MOUSE_LOGIBM) += logibm.o
15obj-$(CONFIG_MOUSE_MAPLE) += maplemouse.o
14obj-$(CONFIG_MOUSE_PC110PAD) += pc110pad.o 16obj-$(CONFIG_MOUSE_PC110PAD) += pc110pad.o
15obj-$(CONFIG_MOUSE_PS2) += psmouse.o 17obj-$(CONFIG_MOUSE_PS2) += psmouse.o
16obj-$(CONFIG_MOUSE_PXA930_TRKBALL) += pxa930_trkball.o 18obj-$(CONFIG_MOUSE_PXA930_TRKBALL) += pxa930_trkball.o
19obj-$(CONFIG_MOUSE_RISCPC) += rpcmouse.o
17obj-$(CONFIG_MOUSE_SERIAL) += sermouse.o 20obj-$(CONFIG_MOUSE_SERIAL) += sermouse.o
18obj-$(CONFIG_MOUSE_HIL) += hil_ptr.o
19obj-$(CONFIG_MOUSE_VSXXXAA) += vsxxxaa.o 21obj-$(CONFIG_MOUSE_VSXXXAA) += vsxxxaa.o
20obj-$(CONFIG_MOUSE_GPIO) += gpio_mouse.o
21 22
22psmouse-objs := psmouse-base.o synaptics.o 23psmouse-objs := psmouse-base.o synaptics.o
23 24
diff --git a/drivers/input/mouse/hgpk.c b/drivers/input/mouse/hgpk.c
index 55cd0fa68339..a1ad2f1a7bb3 100644
--- a/drivers/input/mouse/hgpk.c
+++ b/drivers/input/mouse/hgpk.c
@@ -472,7 +472,7 @@ static enum hgpk_model_t hgpk_get_model(struct psmouse *psmouse)
472 return -EIO; 472 return -EIO;
473 } 473 }
474 474
475 hgpk_dbg(psmouse, "ID: %02x %02x %02x", param[0], param[1], param[2]); 475 hgpk_dbg(psmouse, "ID: %02x %02x %02x\n", param[0], param[1], param[2]);
476 476
477 /* HGPK signature: 0x67, 0x00, 0x<model> */ 477 /* HGPK signature: 0x67, 0x00, 0x<model> */
478 if (param[0] != 0x67 || param[1] != 0x00) 478 if (param[0] != 0x67 || param[1] != 0x00)
diff --git a/drivers/input/mouse/maplemouse.c b/drivers/input/mouse/maplemouse.c
new file mode 100644
index 000000000000..d196abfb68bc
--- /dev/null
+++ b/drivers/input/mouse/maplemouse.c
@@ -0,0 +1,147 @@
1/*
2 * SEGA Dreamcast mouse driver
3 * Based on drivers/usb/usbmouse.c
4 *
5 * Copyright Yaegashi Takeshi, 2001
6 * Adrian McMenamin, 2008
7 */
8
9#include <linux/kernel.h>
10#include <linux/slab.h>
11#include <linux/input.h>
12#include <linux/module.h>
13#include <linux/init.h>
14#include <linux/timer.h>
15#include <linux/maple.h>
16
17MODULE_AUTHOR("Adrian McMenamin <adrian@mcmen.demon.co.uk>");
18MODULE_DESCRIPTION("SEGA Dreamcast mouse driver");
19MODULE_LICENSE("GPL");
20
21struct dc_mouse {
22 struct input_dev *dev;
23 struct maple_device *mdev;
24};
25
26static void dc_mouse_callback(struct mapleq *mq)
27{
28 int buttons, relx, rely, relz;
29 struct maple_device *mapledev = mq->dev;
30 struct dc_mouse *mse = maple_get_drvdata(mapledev);
31 struct input_dev *dev = mse->dev;
32 unsigned char *res = mq->recvbuf;
33
34 buttons = ~res[8];
35 relx = *(unsigned short *)(res + 12) - 512;
36 rely = *(unsigned short *)(res + 14) - 512;
37 relz = *(unsigned short *)(res + 16) - 512;
38
39 input_report_key(dev, BTN_LEFT, buttons & 4);
40 input_report_key(dev, BTN_MIDDLE, buttons & 9);
41 input_report_key(dev, BTN_RIGHT, buttons & 2);
42 input_report_rel(dev, REL_X, relx);
43 input_report_rel(dev, REL_Y, rely);
44 input_report_rel(dev, REL_WHEEL, relz);
45 input_sync(dev);
46}
47
48static int dc_mouse_open(struct input_dev *dev)
49{
50 struct dc_mouse *mse = dev->dev.platform_data;
51
52 maple_getcond_callback(mse->mdev, dc_mouse_callback, HZ/50,
53 MAPLE_FUNC_MOUSE);
54
55 return 0;
56}
57
58static void dc_mouse_close(struct input_dev *dev)
59{
60 struct dc_mouse *mse = dev->dev.platform_data;
61
62 maple_getcond_callback(mse->mdev, dc_mouse_callback, 0,
63 MAPLE_FUNC_MOUSE);
64}
65
66
67static int __devinit probe_maple_mouse(struct device *dev)
68{
69 struct maple_device *mdev = to_maple_dev(dev);
70 struct maple_driver *mdrv = to_maple_driver(dev->driver);
71 struct input_dev *input_dev;
72 struct dc_mouse *mse;
73 int error;
74
75 mse = kzalloc(sizeof(struct dc_mouse), GFP_KERNEL);
76 input_dev = input_allocate_device();
77
78 if (!mse || !input_dev) {
79 error = -ENOMEM;
80 goto fail;
81 }
82
83 mse->dev = input_dev;
84 mse->mdev = mdev;
85
86 input_set_drvdata(input_dev, mse);
87 input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
88 input_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_LEFT) |
89 BIT_MASK(BTN_RIGHT) | BIT_MASK(BTN_MIDDLE);
90 input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y) |
91 BIT_MASK(REL_WHEEL);
92 input_dev->name = mdev->product_name;
93 input_dev->id.bustype = BUS_HOST;
94 input_dev->open = dc_mouse_open;
95 input_dev->close = dc_mouse_close;
96
97 mdev->driver = mdrv;
98 maple_set_drvdata(mdev, mse);
99
100 error = input_register_device(input_dev);
101 if (error)
102 goto fail;
103
104 return 0;
105
106fail:
107 input_free_device(input_dev);
108 maple_set_drvdata(mdev, NULL);
109 kfree(mse);
110 mdev->driver = NULL;
111 return error;
112}
113
114static int __devexit remove_maple_mouse(struct device *dev)
115{
116 struct maple_device *mdev = to_maple_dev(dev);
117 struct dc_mouse *mse = maple_get_drvdata(mdev);
118
119 mdev->callback = NULL;
120 input_unregister_device(mse->dev);
121 maple_set_drvdata(mdev, NULL);
122 kfree(mse);
123
124 return 0;
125}
126
127static struct maple_driver dc_mouse_driver = {
128 .function = MAPLE_FUNC_MOUSE,
129 .drv = {
130 .name = "Dreamcast_mouse",
131 .probe = probe_maple_mouse,
132 .remove = __devexit_p(remove_maple_mouse),
133 },
134};
135
136static int __init dc_mouse_init(void)
137{
138 return maple_driver_register(&dc_mouse_driver);
139}
140
141static void __exit dc_mouse_exit(void)
142{
143 maple_driver_unregister(&dc_mouse_driver);
144}
145
146module_init(dc_mouse_init);
147module_exit(dc_mouse_exit);
diff --git a/drivers/input/mouse/pc110pad.c b/drivers/input/mouse/pc110pad.c
index fd09c8df81f2..f63995f854ff 100644
--- a/drivers/input/mouse/pc110pad.c
+++ b/drivers/input/mouse/pc110pad.c
@@ -111,11 +111,8 @@ static int __init pc110pad_init(void)
111 struct pci_dev *dev; 111 struct pci_dev *dev;
112 int err; 112 int err;
113 113
114 dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, NULL); 114 if (!no_pci_devices())
115 if (dev) {
116 pci_dev_put(dev);
117 return -ENODEV; 115 return -ENODEV;
118 }
119 116
120 if (!request_region(pc110pad_io, 4, "pc110pad")) { 117 if (!request_region(pc110pad_io, 4, "pc110pad")) {
121 printk(KERN_ERR "pc110pad: I/O area %#x-%#x in use.\n", 118 printk(KERN_ERR "pc110pad: I/O area %#x-%#x in use.\n",
diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h
index 6fa2deff7446..83ed2d56b924 100644
--- a/drivers/input/serio/i8042-x86ia64io.h
+++ b/drivers/input/serio/i8042-x86ia64io.h
@@ -151,6 +151,14 @@ static struct dmi_system_id __initdata i8042_dmi_noloop_table[] = {
151 DMI_MATCH(DMI_PRODUCT_VERSION, "01"), 151 DMI_MATCH(DMI_PRODUCT_VERSION, "01"),
152 }, 152 },
153 }, 153 },
154 {
155 .ident = "HP DV9700",
156 .matches = {
157 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
158 DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv9700"),
159 DMI_MATCH(DMI_PRODUCT_VERSION, "Rev 1"),
160 },
161 },
154 { } 162 { }
155}; 163};
156 164
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index bb6486a8c070..b01fd61dadcc 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -29,6 +29,51 @@ config TOUCHSCREEN_ADS7846
29 To compile this driver as a module, choose M here: the 29 To compile this driver as a module, choose M here: the
30 module will be called ads7846. 30 module will be called ads7846.
31 31
32config TOUCHSCREEN_AD7877
33 tristate "AD7877 based touchscreens"
34 depends on SPI_MASTER
35 help
36 Say Y here if you have a touchscreen interface using the
37 AD7877 controller, and your board-specific initialization
38 code includes that in its table of SPI devices.
39
40 If unsure, say N (but it's safe to say "Y").
41
42 To compile this driver as a module, choose M here: the
43 module will be called ad7877.
44
45config TOUCHSCREEN_AD7879_I2C
46 tristate "AD7879 based touchscreens: AD7879-1 I2C Interface"
47 depends on I2C
48 select TOUCHSCREEN_AD7879
49 help
50 Say Y here if you have a touchscreen interface using the
51 AD7879-1 controller, and your board-specific initialization
52 code includes that in its table of I2C devices.
53
54 If unsure, say N (but it's safe to say "Y").
55
56 To compile this driver as a module, choose M here: the
57 module will be called ad7879.
58
59config TOUCHSCREEN_AD7879_SPI
60 tristate "AD7879 based touchscreens: AD7879 SPI Interface"
61 depends on SPI_MASTER && TOUCHSCREEN_AD7879_I2C = n
62 select TOUCHSCREEN_AD7879
63 help
64 Say Y here if you have a touchscreen interface using the
65 AD7879 controller, and your board-specific initialization
66 code includes that in its table of SPI devices.
67
68 If unsure, say N (but it's safe to say "Y").
69
70 To compile this driver as a module, choose M here: the
71 module will be called ad7879.
72
73config TOUCHSCREEN_AD7879
74 tristate
75 default n
76
32config TOUCHSCREEN_BITSY 77config TOUCHSCREEN_BITSY
33 tristate "Compaq iPAQ H3600 (Bitsy) touchscreen" 78 tristate "Compaq iPAQ H3600 (Bitsy) touchscreen"
34 depends on SA1100_BITSY 79 depends on SA1100_BITSY
@@ -308,6 +353,19 @@ config TOUCHSCREEN_WM97XX_MAINSTONE
308 To compile this driver as a module, choose M here: the 353 To compile this driver as a module, choose M here: the
309 module will be called mainstone-wm97xx. 354 module will be called mainstone-wm97xx.
310 355
356config TOUCHSCREEN_WM97XX_ZYLONITE
357 tristate "Zylonite accelerated touch"
358 depends on TOUCHSCREEN_WM97XX && MACH_ZYLONITE
359 select TOUCHSCREEN_WM9713
360 help
361 Say Y here for support for streaming mode with the touchscreen
362 on Zylonite systems.
363
364 If unsure, say N.
365
366 To compile this driver as a module, choose M here: the
367 module will be called zylonite-wm97xx.
368
311config TOUCHSCREEN_USB_COMPOSITE 369config TOUCHSCREEN_USB_COMPOSITE
312 tristate "USB Touchscreen Driver" 370 tristate "USB Touchscreen Driver"
313 depends on USB_ARCH_HAS_HCD 371 depends on USB_ARCH_HAS_HCD
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index d3375aff46fe..6700f7b9d165 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -6,6 +6,8 @@
6 6
7wm97xx-ts-y := wm97xx-core.o 7wm97xx-ts-y := wm97xx-core.o
8 8
9obj-$(CONFIG_TOUCHSCREEN_AD7877) += ad7877.o
10obj-$(CONFIG_TOUCHSCREEN_AD7879) += ad7879.o
9obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o 11obj-$(CONFIG_TOUCHSCREEN_ADS7846) += ads7846.o
10obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) += atmel_tsadcc.o 12obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC) += atmel_tsadcc.o
11obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o 13obj-$(CONFIG_TOUCHSCREEN_BITSY) += h3600_ts_input.o
@@ -34,3 +36,4 @@ wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9705) += wm9705.o
34wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9712) += wm9712.o 36wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9712) += wm9712.o
35wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9713) += wm9713.o 37wm97xx-ts-$(CONFIG_TOUCHSCREEN_WM9713) += wm9713.o
36obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE) += mainstone-wm97xx.o 38obj-$(CONFIG_TOUCHSCREEN_WM97XX_MAINSTONE) += mainstone-wm97xx.o
39obj-$(CONFIG_TOUCHSCREEN_WM97XX_ZYLONITE) += zylonite-wm97xx.o
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
new file mode 100644
index 000000000000..e4728a28f492
--- /dev/null
+++ b/drivers/input/touchscreen/ad7877.c
@@ -0,0 +1,844 @@
1/*
2 * Copyright (C) 2006-2008 Michael Hennerich, Analog Devices Inc.
3 *
4 * Description: AD7877 based touchscreen, sensor (ADCs), DAC and GPIO driver
5 * Based on: ads7846.c
6 *
7 * Bugs: Enter bugs at http://blackfin.uclinux.org/
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, see the file COPYING, or write
21 * to the Free Software Foundation, Inc.,
22 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 *
24 * History:
25 * Copyright (c) 2005 David Brownell
26 * Copyright (c) 2006 Nokia Corporation
27 * Various changes: Imre Deak <imre.deak@nokia.com>
28 *
29 * Using code from:
30 * - corgi_ts.c
31 * Copyright (C) 2004-2005 Richard Purdie
32 * - omap_ts.[hc], ads7846.h, ts_osk.c
33 * Copyright (C) 2002 MontaVista Software
34 * Copyright (C) 2004 Texas Instruments
35 * Copyright (C) 2005 Dirk Behme
36 */
37
38
39#include <linux/device.h>
40#include <linux/init.h>
41#include <linux/delay.h>
42#include <linux/input.h>
43#include <linux/interrupt.h>
44#include <linux/slab.h>
45#include <linux/spi/spi.h>
46#include <linux/spi/ad7877.h>
47#include <asm/irq.h>
48
49#define TS_PEN_UP_TIMEOUT msecs_to_jiffies(50)
50
51#define MAX_SPI_FREQ_HZ 20000000
52#define MAX_12BIT ((1<<12)-1)
53
54#define AD7877_REG_ZEROS 0
55#define AD7877_REG_CTRL1 1
56#define AD7877_REG_CTRL2 2
57#define AD7877_REG_ALERT 3
58#define AD7877_REG_AUX1HIGH 4
59#define AD7877_REG_AUX1LOW 5
60#define AD7877_REG_BAT1HIGH 6
61#define AD7877_REG_BAT1LOW 7
62#define AD7877_REG_BAT2HIGH 8
63#define AD7877_REG_BAT2LOW 9
64#define AD7877_REG_TEMP1HIGH 10
65#define AD7877_REG_TEMP1LOW 11
66#define AD7877_REG_SEQ0 12
67#define AD7877_REG_SEQ1 13
68#define AD7877_REG_DAC 14
69#define AD7877_REG_NONE1 15
70#define AD7877_REG_EXTWRITE 15
71#define AD7877_REG_XPLUS 16
72#define AD7877_REG_YPLUS 17
73#define AD7877_REG_Z2 18
74#define AD7877_REG_aux1 19
75#define AD7877_REG_aux2 20
76#define AD7877_REG_aux3 21
77#define AD7877_REG_bat1 22
78#define AD7877_REG_bat2 23
79#define AD7877_REG_temp1 24
80#define AD7877_REG_temp2 25
81#define AD7877_REG_Z1 26
82#define AD7877_REG_GPIOCTRL1 27
83#define AD7877_REG_GPIOCTRL2 28
84#define AD7877_REG_GPIODATA 29
85#define AD7877_REG_NONE2 30
86#define AD7877_REG_NONE3 31
87
88#define AD7877_SEQ_YPLUS_BIT (1<<11)
89#define AD7877_SEQ_XPLUS_BIT (1<<10)
90#define AD7877_SEQ_Z2_BIT (1<<9)
91#define AD7877_SEQ_AUX1_BIT (1<<8)
92#define AD7877_SEQ_AUX2_BIT (1<<7)
93#define AD7877_SEQ_AUX3_BIT (1<<6)
94#define AD7877_SEQ_BAT1_BIT (1<<5)
95#define AD7877_SEQ_BAT2_BIT (1<<4)
96#define AD7877_SEQ_TEMP1_BIT (1<<3)
97#define AD7877_SEQ_TEMP2_BIT (1<<2)
98#define AD7877_SEQ_Z1_BIT (1<<1)
99
100enum {
101 AD7877_SEQ_YPOS = 0,
102 AD7877_SEQ_XPOS = 1,
103 AD7877_SEQ_Z2 = 2,
104 AD7877_SEQ_AUX1 = 3,
105 AD7877_SEQ_AUX2 = 4,
106 AD7877_SEQ_AUX3 = 5,
107 AD7877_SEQ_BAT1 = 6,
108 AD7877_SEQ_BAT2 = 7,
109 AD7877_SEQ_TEMP1 = 8,
110 AD7877_SEQ_TEMP2 = 9,
111 AD7877_SEQ_Z1 = 10,
112 AD7877_NR_SENSE = 11,
113};
114
115/* DAC Register Default RANGE 0 to Vcc, Volatge Mode, DAC On */
116#define AD7877_DAC_CONF 0x1
117
118/* If gpio3 is set AUX3/GPIO3 acts as GPIO Output */
119#define AD7877_EXTW_GPIO_3_CONF 0x1C4
120#define AD7877_EXTW_GPIO_DATA 0x200
121
122/* Control REG 2 */
123#define AD7877_TMR(x) ((x & 0x3) << 0)
124#define AD7877_REF(x) ((x & 0x1) << 2)
125#define AD7877_POL(x) ((x & 0x1) << 3)
126#define AD7877_FCD(x) ((x & 0x3) << 4)
127#define AD7877_PM(x) ((x & 0x3) << 6)
128#define AD7877_ACQ(x) ((x & 0x3) << 8)
129#define AD7877_AVG(x) ((x & 0x3) << 10)
130
131/* Control REG 1 */
132#define AD7877_SER (1 << 11) /* non-differential */
133#define AD7877_DFR (0 << 11) /* differential */
134
135#define AD7877_MODE_NOC (0) /* Do not convert */
136#define AD7877_MODE_SCC (1) /* Single channel conversion */
137#define AD7877_MODE_SEQ0 (2) /* Sequence 0 in Slave Mode */
138#define AD7877_MODE_SEQ1 (3) /* Sequence 1 in Master Mode */
139
140#define AD7877_CHANADD(x) ((x&0xF)<<7)
141#define AD7877_READADD(x) ((x)<<2)
142#define AD7877_WRITEADD(x) ((x)<<12)
143
144#define AD7877_READ_CHAN(x) (AD7877_WRITEADD(AD7877_REG_CTRL1) | AD7877_SER | \
145 AD7877_MODE_SCC | AD7877_CHANADD(AD7877_REG_ ## x) | \
146 AD7877_READADD(AD7877_REG_ ## x))
147
148#define AD7877_MM_SEQUENCE (AD7877_SEQ_YPLUS_BIT | AD7877_SEQ_XPLUS_BIT | \
149 AD7877_SEQ_Z2_BIT | AD7877_SEQ_Z1_BIT)
150
151/*
152 * Non-touchscreen sensors only use single-ended conversions.
153 */
154
155struct ser_req {
156 u16 reset;
157 u16 ref_on;
158 u16 command;
159 u16 sample;
160 struct spi_message msg;
161 struct spi_transfer xfer[6];
162};
163
164struct ad7877 {
165 struct input_dev *input;
166 char phys[32];
167
168 struct spi_device *spi;
169 u16 model;
170 u16 vref_delay_usecs;
171 u16 x_plate_ohms;
172 u16 pressure_max;
173
174 u16 cmd_crtl1;
175 u16 cmd_crtl2;
176 u16 cmd_dummy;
177 u16 dac;
178
179 u8 stopacq_polarity;
180 u8 first_conversion_delay;
181 u8 acquisition_time;
182 u8 averaging;
183 u8 pen_down_acc_interval;
184
185 u16 conversion_data[AD7877_NR_SENSE];
186
187 struct spi_transfer xfer[AD7877_NR_SENSE + 2];
188 struct spi_message msg;
189
190 struct mutex mutex;
191 unsigned disabled:1; /* P: mutex */
192 unsigned gpio3:1; /* P: mutex */
193 unsigned gpio4:1; /* P: mutex */
194
195 spinlock_t lock;
196 struct timer_list timer; /* P: lock */
197 unsigned pending:1; /* P: lock */
198};
199
200static int gpio3;
201module_param(gpio3, int, 0);
202MODULE_PARM_DESC(gpio3, "If gpio3 is set to 1 AUX3 acts as GPIO3");
203
204/*
205 * ad7877_read/write are only used for initial setup and for sysfs controls.
206 * The main traffic is done using spi_async() in the interrupt handler.
207 */
208
209static int ad7877_read(struct spi_device *spi, u16 reg)
210{
211 struct ser_req *req;
212 int status, ret;
213
214 req = kzalloc(sizeof *req, GFP_KERNEL);
215 if (!req)
216 return -ENOMEM;
217
218 spi_message_init(&req->msg);
219
220 req->command = (u16) (AD7877_WRITEADD(AD7877_REG_CTRL1) |
221 AD7877_READADD(reg));
222 req->xfer[0].tx_buf = &req->command;
223 req->xfer[0].len = 2;
224
225 req->xfer[1].rx_buf = &req->sample;
226 req->xfer[1].len = 2;
227
228 spi_message_add_tail(&req->xfer[0], &req->msg);
229 spi_message_add_tail(&req->xfer[1], &req->msg);
230
231 status = spi_sync(spi, &req->msg);
232 ret = status ? : req->sample;
233
234 kfree(req);
235
236 return ret;
237}
238
239static int ad7877_write(struct spi_device *spi, u16 reg, u16 val)
240{
241 struct ser_req *req;
242 int status;
243
244 req = kzalloc(sizeof *req, GFP_KERNEL);
245 if (!req)
246 return -ENOMEM;
247
248 spi_message_init(&req->msg);
249
250 req->command = (u16) (AD7877_WRITEADD(reg) | (val & MAX_12BIT));
251 req->xfer[0].tx_buf = &req->command;
252 req->xfer[0].len = 2;
253
254 spi_message_add_tail(&req->xfer[0], &req->msg);
255
256 status = spi_sync(spi, &req->msg);
257
258 kfree(req);
259
260 return status;
261}
262
263static int ad7877_read_adc(struct spi_device *spi, unsigned command)
264{
265 struct ad7877 *ts = dev_get_drvdata(&spi->dev);
266 struct ser_req *req;
267 int status;
268 int sample;
269 int i;
270
271 req = kzalloc(sizeof *req, GFP_KERNEL);
272 if (!req)
273 return -ENOMEM;
274
275 spi_message_init(&req->msg);
276
277 /* activate reference, so it has time to settle; */
278 req->ref_on = AD7877_WRITEADD(AD7877_REG_CTRL2) |
279 AD7877_POL(ts->stopacq_polarity) |
280 AD7877_AVG(0) | AD7877_PM(2) | AD7877_TMR(0) |
281 AD7877_ACQ(ts->acquisition_time) | AD7877_FCD(0);
282
283 req->reset = AD7877_WRITEADD(AD7877_REG_CTRL1) | AD7877_MODE_NOC;
284
285 req->command = (u16) command;
286
287 req->xfer[0].tx_buf = &req->reset;
288 req->xfer[0].len = 2;
289
290 req->xfer[1].tx_buf = &req->ref_on;
291 req->xfer[1].len = 2;
292 req->xfer[1].delay_usecs = ts->vref_delay_usecs;
293
294 req->xfer[2].tx_buf = &req->command;
295 req->xfer[2].len = 2;
296 req->xfer[2].delay_usecs = ts->vref_delay_usecs;
297
298 req->xfer[3].rx_buf = &req->sample;
299 req->xfer[3].len = 2;
300
301 req->xfer[4].tx_buf = &ts->cmd_crtl2; /*REF OFF*/
302 req->xfer[4].len = 2;
303
304 req->xfer[5].tx_buf = &ts->cmd_crtl1; /*DEFAULT*/
305 req->xfer[5].len = 2;
306
307 /* group all the transfers together, so we can't interfere with
308 * reading touchscreen state; disable penirq while sampling
309 */
310 for (i = 0; i < 6; i++)
311 spi_message_add_tail(&req->xfer[i], &req->msg);
312
313 status = spi_sync(spi, &req->msg);
314 sample = req->sample;
315
316 kfree(req);
317
318 return status ? : sample;
319}
320
321static void ad7877_rx(struct ad7877 *ts)
322{
323 struct input_dev *input_dev = ts->input;
324 unsigned Rt;
325 u16 x, y, z1, z2;
326
327 x = ts->conversion_data[AD7877_SEQ_XPOS] & MAX_12BIT;
328 y = ts->conversion_data[AD7877_SEQ_YPOS] & MAX_12BIT;
329 z1 = ts->conversion_data[AD7877_SEQ_Z1] & MAX_12BIT;
330 z2 = ts->conversion_data[AD7877_SEQ_Z2] & MAX_12BIT;
331
332 /*
333 * The samples processed here are already preprocessed by the AD7877.
334 * The preprocessing function consists of an averaging filter.
335 * The combination of 'first conversion delay' and averaging provides a robust solution,
336 * discarding the spurious noise in the signal and keeping only the data of interest.
337 * The size of the averaging filter is programmable. (dev.platform_data, see linux/spi/ad7877.h)
338 * Other user-programmable conversion controls include variable acquisition time,
339 * and first conversion delay. Up to 16 averages can be taken per conversion.
340 */
341
342 if (likely(x && z1)) {
343 /* compute touch pressure resistance using equation #1 */
344 Rt = (z2 - z1) * x * ts->x_plate_ohms;
345 Rt /= z1;
346 Rt = (Rt + 2047) >> 12;
347
348 input_report_abs(input_dev, ABS_X, x);
349 input_report_abs(input_dev, ABS_Y, y);
350 input_report_abs(input_dev, ABS_PRESSURE, Rt);
351 input_sync(input_dev);
352 }
353}
354
355static inline void ad7877_ts_event_release(struct ad7877 *ts)
356{
357 struct input_dev *input_dev = ts->input;
358
359 input_report_abs(input_dev, ABS_PRESSURE, 0);
360 input_sync(input_dev);
361}
362
363static void ad7877_timer(unsigned long handle)
364{
365 struct ad7877 *ts = (void *)handle;
366
367 ad7877_ts_event_release(ts);
368}
369
370static irqreturn_t ad7877_irq(int irq, void *handle)
371{
372 struct ad7877 *ts = handle;
373 unsigned long flags;
374 int status;
375
376 /*
377 * The repeated conversion sequencer controlled by TMR kicked off
378 * too fast. We ignore the last and process the sample sequence
379 * currently in the queue. It can't be older than 9.4ms, and we
380 * need to avoid that ts->msg doesn't get issued twice while in work.
381 */
382
383 spin_lock_irqsave(&ts->lock, flags);
384 if (!ts->pending) {
385 ts->pending = 1;
386
387 status = spi_async(ts->spi, &ts->msg);
388 if (status)
389 dev_err(&ts->spi->dev, "spi_sync --> %d\n", status);
390 }
391 spin_unlock_irqrestore(&ts->lock, flags);
392
393 return IRQ_HANDLED;
394}
395
396static void ad7877_callback(void *_ts)
397{
398 struct ad7877 *ts = _ts;
399
400 spin_lock_irq(&ts->lock);
401
402 ad7877_rx(ts);
403 ts->pending = 0;
404 mod_timer(&ts->timer, jiffies + TS_PEN_UP_TIMEOUT);
405
406 spin_unlock_irq(&ts->lock);
407}
408
409static void ad7877_disable(struct ad7877 *ts)
410{
411 mutex_lock(&ts->mutex);
412
413 if (!ts->disabled) {
414 ts->disabled = 1;
415 disable_irq(ts->spi->irq);
416
417 /* Wait for spi_async callback */
418 while (ts->pending)
419 msleep(1);
420
421 if (del_timer_sync(&ts->timer))
422 ad7877_ts_event_release(ts);
423 }
424
425 /* we know the chip's in lowpower mode since we always
426 * leave it that way after every request
427 */
428
429 mutex_unlock(&ts->mutex);
430}
431
432static void ad7877_enable(struct ad7877 *ts)
433{
434 mutex_lock(&ts->mutex);
435
436 if (ts->disabled) {
437 ts->disabled = 0;
438 enable_irq(ts->spi->irq);
439 }
440
441 mutex_unlock(&ts->mutex);
442}
443
444#define SHOW(name) static ssize_t \
445name ## _show(struct device *dev, struct device_attribute *attr, char *buf) \
446{ \
447 struct ad7877 *ts = dev_get_drvdata(dev); \
448 ssize_t v = ad7877_read_adc(ts->spi, \
449 AD7877_READ_CHAN(name)); \
450 if (v < 0) \
451 return v; \
452 return sprintf(buf, "%u\n", (unsigned) v); \
453} \
454static DEVICE_ATTR(name, S_IRUGO, name ## _show, NULL);
455
456SHOW(aux1)
457SHOW(aux2)
458SHOW(aux3)
459SHOW(bat1)
460SHOW(bat2)
461SHOW(temp1)
462SHOW(temp2)
463
464static ssize_t ad7877_disable_show(struct device *dev,
465 struct device_attribute *attr, char *buf)
466{
467 struct ad7877 *ts = dev_get_drvdata(dev);
468
469 return sprintf(buf, "%u\n", ts->disabled);
470}
471
472static ssize_t ad7877_disable_store(struct device *dev,
473 struct device_attribute *attr,
474 const char *buf, size_t count)
475{
476 struct ad7877 *ts = dev_get_drvdata(dev);
477 unsigned long val;
478 int error;
479
480 error = strict_strtoul(buf, 10, &val);
481 if (error)
482 return error;
483
484 if (val)
485 ad7877_disable(ts);
486 else
487 ad7877_enable(ts);
488
489 return count;
490}
491
492static DEVICE_ATTR(disable, 0664, ad7877_disable_show, ad7877_disable_store);
493
494static ssize_t ad7877_dac_show(struct device *dev,
495 struct device_attribute *attr, char *buf)
496{
497 struct ad7877 *ts = dev_get_drvdata(dev);
498
499 return sprintf(buf, "%u\n", ts->dac);
500}
501
502static ssize_t ad7877_dac_store(struct device *dev,
503 struct device_attribute *attr,
504 const char *buf, size_t count)
505{
506 struct ad7877 *ts = dev_get_drvdata(dev);
507 unsigned long val;
508 int error;
509
510 error = strict_strtoul(buf, 10, &val);
511 if (error)
512 return error;
513
514 mutex_lock(&ts->mutex);
515 ts->dac = val & 0xFF;
516 ad7877_write(ts->spi, AD7877_REG_DAC, (ts->dac << 4) | AD7877_DAC_CONF);
517 mutex_unlock(&ts->mutex);
518
519 return count;
520}
521
522static DEVICE_ATTR(dac, 0664, ad7877_dac_show, ad7877_dac_store);
523
524static ssize_t ad7877_gpio3_show(struct device *dev,
525 struct device_attribute *attr, char *buf)
526{
527 struct ad7877 *ts = dev_get_drvdata(dev);
528
529 return sprintf(buf, "%u\n", ts->gpio3);
530}
531
532static ssize_t ad7877_gpio3_store(struct device *dev,
533 struct device_attribute *attr,
534 const char *buf, size_t count)
535{
536 struct ad7877 *ts = dev_get_drvdata(dev);
537 unsigned long val;
538 int error;
539
540 error = strict_strtoul(buf, 10, &val);
541 if (error)
542 return error;
543
544 mutex_lock(&ts->mutex);
545 ts->gpio3 = !!val;
546 ad7877_write(ts->spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_DATA |
547 (ts->gpio4 << 4) | (ts->gpio3 << 5));
548 mutex_unlock(&ts->mutex);
549
550 return count;
551}
552
553static DEVICE_ATTR(gpio3, 0664, ad7877_gpio3_show, ad7877_gpio3_store);
554
555static ssize_t ad7877_gpio4_show(struct device *dev,
556 struct device_attribute *attr, char *buf)
557{
558 struct ad7877 *ts = dev_get_drvdata(dev);
559
560 return sprintf(buf, "%u\n", ts->gpio4);
561}
562
563static ssize_t ad7877_gpio4_store(struct device *dev,
564 struct device_attribute *attr,
565 const char *buf, size_t count)
566{
567 struct ad7877 *ts = dev_get_drvdata(dev);
568 unsigned long val;
569 int error;
570
571 error = strict_strtoul(buf, 10, &val);
572 if (error)
573 return error;
574
575 mutex_lock(&ts->mutex);
576 ts->gpio4 = !!val;
577 ad7877_write(ts->spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_DATA |
578 (ts->gpio4 << 4) | (ts->gpio3 << 5));
579 mutex_unlock(&ts->mutex);
580
581 return count;
582}
583
584static DEVICE_ATTR(gpio4, 0664, ad7877_gpio4_show, ad7877_gpio4_store);
585
586static struct attribute *ad7877_attributes[] = {
587 &dev_attr_temp1.attr,
588 &dev_attr_temp2.attr,
589 &dev_attr_aux1.attr,
590 &dev_attr_aux2.attr,
591 &dev_attr_bat1.attr,
592 &dev_attr_bat2.attr,
593 &dev_attr_disable.attr,
594 &dev_attr_dac.attr,
595 &dev_attr_gpio4.attr,
596 NULL
597};
598
599static const struct attribute_group ad7877_attr_group = {
600 .attrs = ad7877_attributes,
601};
602
603static void ad7877_setup_ts_def_msg(struct spi_device *spi, struct ad7877 *ts)
604{
605 struct spi_message *m;
606 int i;
607
608 ts->cmd_crtl2 = AD7877_WRITEADD(AD7877_REG_CTRL2) |
609 AD7877_POL(ts->stopacq_polarity) |
610 AD7877_AVG(ts->averaging) | AD7877_PM(1) |
611 AD7877_TMR(ts->pen_down_acc_interval) |
612 AD7877_ACQ(ts->acquisition_time) |
613 AD7877_FCD(ts->first_conversion_delay);
614
615 ad7877_write(spi, AD7877_REG_CTRL2, ts->cmd_crtl2);
616
617 ts->cmd_crtl1 = AD7877_WRITEADD(AD7877_REG_CTRL1) |
618 AD7877_READADD(AD7877_REG_XPLUS-1) |
619 AD7877_MODE_SEQ1 | AD7877_DFR;
620
621 ad7877_write(spi, AD7877_REG_CTRL1, ts->cmd_crtl1);
622
623 ts->cmd_dummy = 0;
624
625 m = &ts->msg;
626
627 spi_message_init(m);
628
629 m->complete = ad7877_callback;
630 m->context = ts;
631
632 ts->xfer[0].tx_buf = &ts->cmd_crtl1;
633 ts->xfer[0].len = 2;
634
635 spi_message_add_tail(&ts->xfer[0], m);
636
637 ts->xfer[1].tx_buf = &ts->cmd_dummy; /* Send ZERO */
638 ts->xfer[1].len = 2;
639
640 spi_message_add_tail(&ts->xfer[1], m);
641
642 for (i = 0; i < 11; i++) {
643 ts->xfer[i + 2].rx_buf = &ts->conversion_data[AD7877_SEQ_YPOS + i];
644 ts->xfer[i + 2].len = 2;
645 spi_message_add_tail(&ts->xfer[i + 2], m);
646 }
647}
648
649static int __devinit ad7877_probe(struct spi_device *spi)
650{
651 struct ad7877 *ts;
652 struct input_dev *input_dev;
653 struct ad7877_platform_data *pdata = spi->dev.platform_data;
654 int err;
655 u16 verify;
656
657 if (!spi->irq) {
658 dev_dbg(&spi->dev, "no IRQ?\n");
659 return -ENODEV;
660 }
661
662 if (!pdata) {
663 dev_dbg(&spi->dev, "no platform data?\n");
664 return -ENODEV;
665 }
666
667 /* don't exceed max specified SPI CLK frequency */
668 if (spi->max_speed_hz > MAX_SPI_FREQ_HZ) {
669 dev_dbg(&spi->dev, "SPI CLK %d Hz?\n",spi->max_speed_hz);
670 return -EINVAL;
671 }
672
673 ts = kzalloc(sizeof(struct ad7877), GFP_KERNEL);
674 input_dev = input_allocate_device();
675 if (!ts || !input_dev) {
676 err = -ENOMEM;
677 goto err_free_mem;
678 }
679
680 dev_set_drvdata(&spi->dev, ts);
681 ts->spi = spi;
682 ts->input = input_dev;
683
684 setup_timer(&ts->timer, ad7877_timer, (unsigned long) ts);
685 mutex_init(&ts->mutex);
686 spin_lock_init(&ts->lock);
687
688 ts->model = pdata->model ? : 7877;
689 ts->vref_delay_usecs = pdata->vref_delay_usecs ? : 100;
690 ts->x_plate_ohms = pdata->x_plate_ohms ? : 400;
691 ts->pressure_max = pdata->pressure_max ? : ~0;
692
693 ts->stopacq_polarity = pdata->stopacq_polarity;
694 ts->first_conversion_delay = pdata->first_conversion_delay;
695 ts->acquisition_time = pdata->acquisition_time;
696 ts->averaging = pdata->averaging;
697 ts->pen_down_acc_interval = pdata->pen_down_acc_interval;
698
699 snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&spi->dev));
700
701 input_dev->name = "AD7877 Touchscreen";
702 input_dev->phys = ts->phys;
703 input_dev->dev.parent = &spi->dev;
704
705 __set_bit(EV_ABS, input_dev->evbit);
706 __set_bit(ABS_X, input_dev->absbit);
707 __set_bit(ABS_Y, input_dev->absbit);
708 __set_bit(ABS_PRESSURE, input_dev->absbit);
709
710 input_set_abs_params(input_dev, ABS_X,
711 pdata->x_min ? : 0,
712 pdata->x_max ? : MAX_12BIT,
713 0, 0);
714 input_set_abs_params(input_dev, ABS_Y,
715 pdata->y_min ? : 0,
716 pdata->y_max ? : MAX_12BIT,
717 0, 0);
718 input_set_abs_params(input_dev, ABS_PRESSURE,
719 pdata->pressure_min, pdata->pressure_max, 0, 0);
720
721 ad7877_write(spi, AD7877_REG_SEQ1, AD7877_MM_SEQUENCE);
722
723 verify = ad7877_read(spi, AD7877_REG_SEQ1);
724
725 if (verify != AD7877_MM_SEQUENCE){
726 dev_err(&spi->dev, "%s: Failed to probe %s\n",
727 dev_name(&spi->dev), input_dev->name);
728 err = -ENODEV;
729 goto err_free_mem;
730 }
731
732 if (gpio3)
733 ad7877_write(spi, AD7877_REG_EXTWRITE, AD7877_EXTW_GPIO_3_CONF);
734
735 ad7877_setup_ts_def_msg(spi, ts);
736
737 /* Request AD7877 /DAV GPIO interrupt */
738
739 err = request_irq(spi->irq, ad7877_irq, IRQF_TRIGGER_FALLING |
740 IRQF_SAMPLE_RANDOM, spi->dev.driver->name, ts);
741 if (err) {
742 dev_dbg(&spi->dev, "irq %d busy?\n", spi->irq);
743 goto err_free_mem;
744 }
745
746 err = sysfs_create_group(&spi->dev.kobj, &ad7877_attr_group);
747 if (err)
748 goto err_free_irq;
749
750 err = device_create_file(&spi->dev,
751 gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
752 if (err)
753 goto err_remove_attr_group;
754
755 err = input_register_device(input_dev);
756 if (err)
757 goto err_remove_attr;
758
759 return 0;
760
761err_remove_attr:
762 device_remove_file(&spi->dev,
763 gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
764err_remove_attr_group:
765 sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group);
766err_free_irq:
767 free_irq(spi->irq, ts);
768err_free_mem:
769 input_free_device(input_dev);
770 kfree(ts);
771 dev_set_drvdata(&spi->dev, NULL);
772 return err;
773}
774
775static int __devexit ad7877_remove(struct spi_device *spi)
776{
777 struct ad7877 *ts = dev_get_drvdata(&spi->dev);
778
779 sysfs_remove_group(&spi->dev.kobj, &ad7877_attr_group);
780 device_remove_file(&spi->dev,
781 gpio3 ? &dev_attr_gpio3 : &dev_attr_aux3);
782
783 ad7877_disable(ts);
784 free_irq(ts->spi->irq, ts);
785
786 input_unregister_device(ts->input);
787 kfree(ts);
788
789 dev_dbg(&spi->dev, "unregistered touchscreen\n");
790 dev_set_drvdata(&spi->dev, NULL);
791
792 return 0;
793}
794
795#ifdef CONFIG_PM
796static int ad7877_suspend(struct spi_device *spi, pm_message_t message)
797{
798 struct ad7877 *ts = dev_get_drvdata(&spi->dev);
799
800 ad7877_disable(ts);
801
802 return 0;
803}
804
805static int ad7877_resume(struct spi_device *spi)
806{
807 struct ad7877 *ts = dev_get_drvdata(&spi->dev);
808
809 ad7877_enable(ts);
810
811 return 0;
812}
813#else
814#define ad7877_suspend NULL
815#define ad7877_resume NULL
816#endif
817
818static struct spi_driver ad7877_driver = {
819 .driver = {
820 .name = "ad7877",
821 .bus = &spi_bus_type,
822 .owner = THIS_MODULE,
823 },
824 .probe = ad7877_probe,
825 .remove = __devexit_p(ad7877_remove),
826 .suspend = ad7877_suspend,
827 .resume = ad7877_resume,
828};
829
830static int __init ad7877_init(void)
831{
832 return spi_register_driver(&ad7877_driver);
833}
834module_init(ad7877_init);
835
836static void __exit ad7877_exit(void)
837{
838 spi_unregister_driver(&ad7877_driver);
839}
840module_exit(ad7877_exit);
841
842MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
843MODULE_DESCRIPTION("AD7877 touchscreen Driver");
844MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c
new file mode 100644
index 000000000000..ea4c61d68683
--- /dev/null
+++ b/drivers/input/touchscreen/ad7879.c
@@ -0,0 +1,782 @@
1/*
2 * Copyright (C) 2008 Michael Hennerich, Analog Devices Inc.
3 *
4 * Description: AD7879 based touchscreen, and GPIO driver (I2C/SPI Interface)
5 *
6 * Bugs: Enter bugs at http://blackfin.uclinux.org/
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; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, see the file COPYING, or write
20 * to the Free Software Foundation, Inc.,
21 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 *
23 * History:
24 * Copyright (c) 2005 David Brownell
25 * Copyright (c) 2006 Nokia Corporation
26 * Various changes: Imre Deak <imre.deak@nokia.com>
27 *
28 * Using code from:
29 * - corgi_ts.c
30 * Copyright (C) 2004-2005 Richard Purdie
31 * - omap_ts.[hc], ads7846.h, ts_osk.c
32 * Copyright (C) 2002 MontaVista Software
33 * Copyright (C) 2004 Texas Instruments
34 * Copyright (C) 2005 Dirk Behme
35 * - ad7877.c
36 * Copyright (C) 2006-2008 Analog Devices Inc.
37 */
38
39#include <linux/device.h>
40#include <linux/init.h>
41#include <linux/delay.h>
42#include <linux/input.h>
43#include <linux/interrupt.h>
44#include <linux/irq.h>
45#include <linux/slab.h>
46#include <linux/workqueue.h>
47#include <linux/spi/spi.h>
48#include <linux/i2c.h>
49
50#include <linux/spi/ad7879.h>
51
52#define AD7879_REG_ZEROS 0
53#define AD7879_REG_CTRL1 1
54#define AD7879_REG_CTRL2 2
55#define AD7879_REG_CTRL3 3
56#define AD7879_REG_AUX1HIGH 4
57#define AD7879_REG_AUX1LOW 5
58#define AD7879_REG_TEMP1HIGH 6
59#define AD7879_REG_TEMP1LOW 7
60#define AD7879_REG_XPLUS 8
61#define AD7879_REG_YPLUS 9
62#define AD7879_REG_Z1 10
63#define AD7879_REG_Z2 11
64#define AD7879_REG_AUXVBAT 12
65#define AD7879_REG_TEMP 13
66#define AD7879_REG_REVID 14
67
68/* Control REG 1 */
69#define AD7879_TMR(x) ((x & 0xFF) << 0)
70#define AD7879_ACQ(x) ((x & 0x3) << 8)
71#define AD7879_MODE_NOC (0 << 10) /* Do not convert */
72#define AD7879_MODE_SCC (1 << 10) /* Single channel conversion */
73#define AD7879_MODE_SEQ0 (2 << 10) /* Sequence 0 in Slave Mode */
74#define AD7879_MODE_SEQ1 (3 << 10) /* Sequence 1 in Master Mode */
75#define AD7879_MODE_INT (1 << 15) /* PENIRQ disabled INT enabled */
76
77/* Control REG 2 */
78#define AD7879_FCD(x) ((x & 0x3) << 0)
79#define AD7879_RESET (1 << 4)
80#define AD7879_MFS(x) ((x & 0x3) << 5)
81#define AD7879_AVG(x) ((x & 0x3) << 7)
82#define AD7879_SER (1 << 9) /* non-differential */
83#define AD7879_DFR (0 << 9) /* differential */
84#define AD7879_GPIOPOL (1 << 10)
85#define AD7879_GPIODIR (1 << 11)
86#define AD7879_GPIO_DATA (1 << 12)
87#define AD7879_GPIO_EN (1 << 13)
88#define AD7879_PM(x) ((x & 0x3) << 14)
89#define AD7879_PM_SHUTDOWN (0)
90#define AD7879_PM_DYN (1)
91#define AD7879_PM_FULLON (2)
92
93/* Control REG 3 */
94#define AD7879_TEMPMASK_BIT (1<<15)
95#define AD7879_AUXVBATMASK_BIT (1<<14)
96#define AD7879_INTMODE_BIT (1<<13)
97#define AD7879_GPIOALERTMASK_BIT (1<<12)
98#define AD7879_AUXLOW_BIT (1<<11)
99#define AD7879_AUXHIGH_BIT (1<<10)
100#define AD7879_TEMPLOW_BIT (1<<9)
101#define AD7879_TEMPHIGH_BIT (1<<8)
102#define AD7879_YPLUS_BIT (1<<7)
103#define AD7879_XPLUS_BIT (1<<6)
104#define AD7879_Z1_BIT (1<<5)
105#define AD7879_Z2_BIT (1<<4)
106#define AD7879_AUX_BIT (1<<3)
107#define AD7879_VBAT_BIT (1<<2)
108#define AD7879_TEMP_BIT (1<<1)
109
110enum {
111 AD7879_SEQ_XPOS = 0,
112 AD7879_SEQ_YPOS = 1,
113 AD7879_SEQ_Z1 = 2,
114 AD7879_SEQ_Z2 = 3,
115 AD7879_NR_SENSE = 4,
116};
117
118#define MAX_12BIT ((1<<12)-1)
119#define TS_PEN_UP_TIMEOUT msecs_to_jiffies(50)
120
121#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
122#define AD7879_DEVID 0x7A
123typedef struct spi_device bus_device;
124#elif defined(CONFIG_TOUCHSCREEN_AD7879_I2C) || defined(CONFIG_TOUCHSCREEN_AD7879_I2C_MODULE)
125#define AD7879_DEVID 0x79
126typedef struct i2c_client bus_device;
127#endif
128
129struct ad7879 {
130 bus_device *bus;
131 struct input_dev *input;
132 struct work_struct work;
133 struct timer_list timer;
134
135 struct mutex mutex;
136 unsigned disabled:1; /* P: mutex */
137
138#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
139 struct spi_message msg;
140 struct spi_transfer xfer[AD7879_NR_SENSE + 1];
141 u16 cmd;
142#endif
143 u16 conversion_data[AD7879_NR_SENSE];
144 char phys[32];
145 u8 first_conversion_delay;
146 u8 acquisition_time;
147 u8 averaging;
148 u8 pen_down_acc_interval;
149 u8 median;
150 u16 x_plate_ohms;
151 u16 pressure_max;
152 u16 gpio_init;
153 u16 cmd_crtl1;
154 u16 cmd_crtl2;
155 u16 cmd_crtl3;
156 unsigned gpio:1;
157};
158
159static int ad7879_read(bus_device *, u8);
160static int ad7879_write(bus_device *, u8, u16);
161static void ad7879_collect(struct ad7879 *);
162
163static void ad7879_report(struct ad7879 *ts)
164{
165 struct input_dev *input_dev = ts->input;
166 unsigned Rt;
167 u16 x, y, z1, z2;
168
169 x = ts->conversion_data[AD7879_SEQ_XPOS] & MAX_12BIT;
170 y = ts->conversion_data[AD7879_SEQ_YPOS] & MAX_12BIT;
171 z1 = ts->conversion_data[AD7879_SEQ_Z1] & MAX_12BIT;
172 z2 = ts->conversion_data[AD7879_SEQ_Z2] & MAX_12BIT;
173
174 /*
175 * The samples processed here are already preprocessed by the AD7879.
176 * The preprocessing function consists of a median and an averaging filter.
177 * The combination of these two techniques provides a robust solution,
178 * discarding the spurious noise in the signal and keeping only the data of interest.
179 * The size of both filters is programmable. (dev.platform_data, see linux/spi/ad7879.h)
180 * Other user-programmable conversion controls include variable acquisition time,
181 * and first conversion delay. Up to 16 averages can be taken per conversion.
182 */
183
184 if (likely(x && z1)) {
185 /* compute touch pressure resistance using equation #1 */
186 Rt = (z2 - z1) * x * ts->x_plate_ohms;
187 Rt /= z1;
188 Rt = (Rt + 2047) >> 12;
189
190 input_report_abs(input_dev, ABS_X, x);
191 input_report_abs(input_dev, ABS_Y, y);
192 input_report_abs(input_dev, ABS_PRESSURE, Rt);
193 input_sync(input_dev);
194 }
195}
196
197static void ad7879_work(struct work_struct *work)
198{
199 struct ad7879 *ts = container_of(work, struct ad7879, work);
200
201 /* use keventd context to read the result registers */
202 ad7879_collect(ts);
203 ad7879_report(ts);
204 mod_timer(&ts->timer, jiffies + TS_PEN_UP_TIMEOUT);
205}
206
207static void ad7879_ts_event_release(struct ad7879 *ts)
208{
209 struct input_dev *input_dev = ts->input;
210
211 input_report_abs(input_dev, ABS_PRESSURE, 0);
212 input_sync(input_dev);
213}
214
215static void ad7879_timer(unsigned long handle)
216{
217 struct ad7879 *ts = (void *)handle;
218
219 ad7879_ts_event_release(ts);
220}
221
222static irqreturn_t ad7879_irq(int irq, void *handle)
223{
224 struct ad7879 *ts = handle;
225
226 /* The repeated conversion sequencer controlled by TMR kicked off too fast.
227 * We ignore the last and process the sample sequence currently in the queue.
228 * It can't be older than 9.4ms
229 */
230
231 if (!work_pending(&ts->work))
232 schedule_work(&ts->work);
233
234 return IRQ_HANDLED;
235}
236
237static void ad7879_setup(struct ad7879 *ts)
238{
239 ts->cmd_crtl3 = AD7879_YPLUS_BIT |
240 AD7879_XPLUS_BIT |
241 AD7879_Z2_BIT |
242 AD7879_Z1_BIT |
243 AD7879_TEMPMASK_BIT |
244 AD7879_AUXVBATMASK_BIT |
245 AD7879_GPIOALERTMASK_BIT;
246
247 ts->cmd_crtl2 = AD7879_PM(AD7879_PM_DYN) | AD7879_DFR |
248 AD7879_AVG(ts->averaging) |
249 AD7879_MFS(ts->median) |
250 AD7879_FCD(ts->first_conversion_delay) |
251 ts->gpio_init;
252
253 ts->cmd_crtl1 = AD7879_MODE_INT | AD7879_MODE_SEQ1 |
254 AD7879_ACQ(ts->acquisition_time) |
255 AD7879_TMR(ts->pen_down_acc_interval);
256
257 ad7879_write(ts->bus, AD7879_REG_CTRL2, ts->cmd_crtl2);
258 ad7879_write(ts->bus, AD7879_REG_CTRL3, ts->cmd_crtl3);
259 ad7879_write(ts->bus, AD7879_REG_CTRL1, ts->cmd_crtl1);
260}
261
262static void ad7879_disable(struct ad7879 *ts)
263{
264 mutex_lock(&ts->mutex);
265
266 if (!ts->disabled) {
267
268 ts->disabled = 1;
269 disable_irq(ts->bus->irq);
270
271 cancel_work_sync(&ts->work);
272
273 if (del_timer_sync(&ts->timer))
274 ad7879_ts_event_release(ts);
275
276 ad7879_write(ts->bus, AD7879_REG_CTRL2,
277 AD7879_PM(AD7879_PM_SHUTDOWN));
278 }
279
280 mutex_unlock(&ts->mutex);
281}
282
283static void ad7879_enable(struct ad7879 *ts)
284{
285 mutex_lock(&ts->mutex);
286
287 if (ts->disabled) {
288 ad7879_setup(ts);
289 ts->disabled = 0;
290 enable_irq(ts->bus->irq);
291 }
292
293 mutex_unlock(&ts->mutex);
294}
295
296static ssize_t ad7879_disable_show(struct device *dev,
297 struct device_attribute *attr, char *buf)
298{
299 struct ad7879 *ts = dev_get_drvdata(dev);
300
301 return sprintf(buf, "%u\n", ts->disabled);
302}
303
304static ssize_t ad7879_disable_store(struct device *dev,
305 struct device_attribute *attr,
306 const char *buf, size_t count)
307{
308 struct ad7879 *ts = dev_get_drvdata(dev);
309 unsigned long val;
310 int error;
311
312 error = strict_strtoul(buf, 10, &val);
313 if (error)
314 return error;
315
316 if (val)
317 ad7879_disable(ts);
318 else
319 ad7879_enable(ts);
320
321 return count;
322}
323
324static DEVICE_ATTR(disable, 0664, ad7879_disable_show, ad7879_disable_store);
325
326static ssize_t ad7879_gpio_show(struct device *dev,
327 struct device_attribute *attr, char *buf)
328{
329 struct ad7879 *ts = dev_get_drvdata(dev);
330
331 return sprintf(buf, "%u\n", ts->gpio);
332}
333
334static ssize_t ad7879_gpio_store(struct device *dev,
335 struct device_attribute *attr,
336 const char *buf, size_t count)
337{
338 struct ad7879 *ts = dev_get_drvdata(dev);
339 unsigned long val;
340 int error;
341
342 error = strict_strtoul(buf, 10, &val);
343 if (error)
344 return error;
345
346 mutex_lock(&ts->mutex);
347 ts->gpio = !!val;
348 error = ad7879_write(ts->bus, AD7879_REG_CTRL2,
349 ts->gpio ?
350 ts->cmd_crtl2 & ~AD7879_GPIO_DATA :
351 ts->cmd_crtl2 | AD7879_GPIO_DATA);
352 mutex_unlock(&ts->mutex);
353
354 return error ? : count;
355}
356
357static DEVICE_ATTR(gpio, 0664, ad7879_gpio_show, ad7879_gpio_store);
358
359static struct attribute *ad7879_attributes[] = {
360 &dev_attr_disable.attr,
361 &dev_attr_gpio.attr,
362 NULL
363};
364
365static const struct attribute_group ad7879_attr_group = {
366 .attrs = ad7879_attributes,
367};
368
369static int __devinit ad7879_construct(bus_device *bus, struct ad7879 *ts)
370{
371 struct input_dev *input_dev;
372 struct ad7879_platform_data *pdata = bus->dev.platform_data;
373 int err;
374 u16 revid;
375
376 if (!bus->irq) {
377 dev_err(&bus->dev, "no IRQ?\n");
378 return -ENODEV;
379 }
380
381 if (!pdata) {
382 dev_err(&bus->dev, "no platform data?\n");
383 return -ENODEV;
384 }
385
386 input_dev = input_allocate_device();
387 if (!input_dev)
388 return -ENOMEM;
389
390 ts->input = input_dev;
391
392 setup_timer(&ts->timer, ad7879_timer, (unsigned long) ts);
393 INIT_WORK(&ts->work, ad7879_work);
394 mutex_init(&ts->mutex);
395
396 ts->x_plate_ohms = pdata->x_plate_ohms ? : 400;
397 ts->pressure_max = pdata->pressure_max ? : ~0;
398
399 ts->first_conversion_delay = pdata->first_conversion_delay;
400 ts->acquisition_time = pdata->acquisition_time;
401 ts->averaging = pdata->averaging;
402 ts->pen_down_acc_interval = pdata->pen_down_acc_interval;
403 ts->median = pdata->median;
404
405 if (pdata->gpio_output)
406 ts->gpio_init = AD7879_GPIO_EN |
407 (pdata->gpio_default ? 0 : AD7879_GPIO_DATA);
408 else
409 ts->gpio_init = AD7879_GPIO_EN | AD7879_GPIODIR;
410
411 snprintf(ts->phys, sizeof(ts->phys), "%s/input0", dev_name(&bus->dev));
412
413 input_dev->name = "AD7879 Touchscreen";
414 input_dev->phys = ts->phys;
415 input_dev->dev.parent = &bus->dev;
416
417 __set_bit(EV_ABS, input_dev->evbit);
418 __set_bit(ABS_X, input_dev->absbit);
419 __set_bit(ABS_Y, input_dev->absbit);
420 __set_bit(ABS_PRESSURE, input_dev->absbit);
421
422 input_set_abs_params(input_dev, ABS_X,
423 pdata->x_min ? : 0,
424 pdata->x_max ? : MAX_12BIT,
425 0, 0);
426 input_set_abs_params(input_dev, ABS_Y,
427 pdata->y_min ? : 0,
428 pdata->y_max ? : MAX_12BIT,
429 0, 0);
430 input_set_abs_params(input_dev, ABS_PRESSURE,
431 pdata->pressure_min, pdata->pressure_max, 0, 0);
432
433 err = ad7879_write(bus, AD7879_REG_CTRL2, AD7879_RESET);
434
435 if (err < 0) {
436 dev_err(&bus->dev, "Failed to write %s\n", input_dev->name);
437 goto err_free_mem;
438 }
439
440 revid = ad7879_read(bus, AD7879_REG_REVID);
441
442 if ((revid & 0xFF) != AD7879_DEVID) {
443 dev_err(&bus->dev, "Failed to probe %s\n", input_dev->name);
444 err = -ENODEV;
445 goto err_free_mem;
446 }
447
448 ad7879_setup(ts);
449
450 err = request_irq(bus->irq, ad7879_irq,
451 IRQF_TRIGGER_FALLING | IRQF_SAMPLE_RANDOM,
452 bus->dev.driver->name, ts);
453
454 if (err) {
455 dev_err(&bus->dev, "irq %d busy?\n", bus->irq);
456 goto err_free_mem;
457 }
458
459 err = sysfs_create_group(&bus->dev.kobj, &ad7879_attr_group);
460 if (err)
461 goto err_free_irq;
462
463 err = input_register_device(input_dev);
464 if (err)
465 goto err_remove_attr;
466
467 dev_info(&bus->dev, "Rev.%d touchscreen, irq %d\n",
468 revid >> 8, bus->irq);
469
470 return 0;
471
472err_remove_attr:
473 sysfs_remove_group(&bus->dev.kobj, &ad7879_attr_group);
474err_free_irq:
475 free_irq(bus->irq, ts);
476err_free_mem:
477 input_free_device(input_dev);
478
479 return err;
480}
481
482static int __devexit ad7879_destroy(bus_device *bus, struct ad7879 *ts)
483{
484 ad7879_disable(ts);
485 sysfs_remove_group(&ts->bus->dev.kobj, &ad7879_attr_group);
486 free_irq(ts->bus->irq, ts);
487 input_unregister_device(ts->input);
488 dev_dbg(&bus->dev, "unregistered touchscreen\n");
489
490 return 0;
491}
492
493#ifdef CONFIG_PM
494static int ad7879_suspend(bus_device *bus, pm_message_t message)
495{
496 struct ad7879 *ts = dev_get_drvdata(&bus->dev);
497
498 ad7879_disable(ts);
499
500 return 0;
501}
502
503static int ad7879_resume(bus_device *bus)
504{
505 struct ad7879 *ts = dev_get_drvdata(&bus->dev);
506
507 ad7879_enable(ts);
508
509 return 0;
510}
511#else
512#define ad7879_suspend NULL
513#define ad7879_resume NULL
514#endif
515
516#if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
517#define MAX_SPI_FREQ_HZ 5000000
518#define AD7879_CMD_MAGIC 0xE000
519#define AD7879_CMD_READ (1 << 10)
520#define AD7879_WRITECMD(reg) (AD7879_CMD_MAGIC | (reg & 0xF))
521#define AD7879_READCMD(reg) (AD7879_CMD_MAGIC | AD7879_CMD_READ | (reg & 0xF))
522
523struct ser_req {
524 u16 command;
525 u16 data;
526 struct spi_message msg;
527 struct spi_transfer xfer[2];
528};
529
530/*
531 * ad7879_read/write are only used for initial setup and for sysfs controls.
532 * The main traffic is done in ad7879_collect().
533 */
534
535static int ad7879_read(struct spi_device *spi, u8 reg)
536{
537 struct ser_req *req;
538 int status, ret;
539
540 req = kzalloc(sizeof *req, GFP_KERNEL);
541 if (!req)
542 return -ENOMEM;
543
544 spi_message_init(&req->msg);
545
546 req->command = (u16) AD7879_READCMD(reg);
547 req->xfer[0].tx_buf = &req->command;
548 req->xfer[0].len = 2;
549
550 req->xfer[1].rx_buf = &req->data;
551 req->xfer[1].len = 2;
552
553 spi_message_add_tail(&req->xfer[0], &req->msg);
554 spi_message_add_tail(&req->xfer[1], &req->msg);
555
556 status = spi_sync(spi, &req->msg);
557 ret = status ? : req->data;
558
559 kfree(req);
560
561 return ret;
562}
563
564static int ad7879_write(struct spi_device *spi, u8 reg, u16 val)
565{
566 struct ser_req *req;
567 int status;
568
569 req = kzalloc(sizeof *req, GFP_KERNEL);
570 if (!req)
571 return -ENOMEM;
572
573 spi_message_init(&req->msg);
574
575 req->command = (u16) AD7879_WRITECMD(reg);
576 req->xfer[0].tx_buf = &req->command;
577 req->xfer[0].len = 2;
578
579 req->data = val;
580 req->xfer[1].tx_buf = &req->data;
581 req->xfer[1].len = 2;
582
583 spi_message_add_tail(&req->xfer[0], &req->msg);
584 spi_message_add_tail(&req->xfer[1], &req->msg);
585
586 status = spi_sync(spi, &req->msg);
587
588 kfree(req);
589
590 return status;
591}
592
593static void ad7879_collect(struct ad7879 *ts)
594{
595 int status = spi_sync(ts->bus, &ts->msg);
596
597 if (status)
598 dev_err(&ts->bus->dev, "spi_sync --> %d\n", status);
599}
600
601static void ad7879_setup_ts_def_msg(struct ad7879 *ts)
602{
603 struct spi_message *m;
604 int i;
605
606 ts->cmd = (u16) AD7879_READCMD(AD7879_REG_XPLUS);
607
608 m = &ts->msg;
609 spi_message_init(m);
610 ts->xfer[0].tx_buf = &ts->cmd;
611 ts->xfer[0].len = 2;
612
613 spi_message_add_tail(&ts->xfer[0], m);
614
615 for (i = 0; i < AD7879_NR_SENSE; i++) {
616 ts->xfer[i + 1].rx_buf = &ts->conversion_data[i];
617 ts->xfer[i + 1].len = 2;
618 spi_message_add_tail(&ts->xfer[i + 1], m);
619 }
620}
621
622static int __devinit ad7879_probe(struct spi_device *spi)
623{
624 struct ad7879 *ts;
625 int error;
626
627 /* don't exceed max specified SPI CLK frequency */
628 if (spi->max_speed_hz > MAX_SPI_FREQ_HZ) {
629 dev_err(&spi->dev, "SPI CLK %d Hz?\n", spi->max_speed_hz);
630 return -EINVAL;
631 }
632
633 ts = kzalloc(sizeof(struct ad7879), GFP_KERNEL);
634 if (!ts)
635 return -ENOMEM;
636
637 dev_set_drvdata(&spi->dev, ts);
638 ts->bus = spi;
639
640 ad7879_setup_ts_def_msg(ts);
641
642 error = ad7879_construct(spi, ts);
643 if (error) {
644 dev_set_drvdata(&spi->dev, NULL);
645 kfree(ts);
646 }
647
648 return 0;
649}
650
651static int __devexit ad7879_remove(struct spi_device *spi)
652{
653 struct ad7879 *ts = dev_get_drvdata(&spi->dev);
654
655 ad7879_destroy(spi, ts);
656 dev_set_drvdata(&spi->dev, NULL);
657 kfree(ts);
658
659 return 0;
660}
661
662static struct spi_driver ad7879_driver = {
663 .driver = {
664 .name = "ad7879",
665 .bus = &spi_bus_type,
666 .owner = THIS_MODULE,
667 },
668 .probe = ad7879_probe,
669 .remove = __devexit_p(ad7879_remove),
670 .suspend = ad7879_suspend,
671 .resume = ad7879_resume,
672};
673
674static int __init ad7879_init(void)
675{
676 return spi_register_driver(&ad7879_driver);
677}
678module_init(ad7879_init);
679
680static void __exit ad7879_exit(void)
681{
682 spi_unregister_driver(&ad7879_driver);
683}
684module_exit(ad7879_exit);
685
686#elif defined(CONFIG_TOUCHSCREEN_AD7879_I2C) || defined(CONFIG_TOUCHSCREEN_AD7879_I2C_MODULE)
687
688/* All registers are word-sized.
689 * AD7879 uses a high-byte first convention.
690 */
691static int ad7879_read(struct i2c_client *client, u8 reg)
692{
693 return swab16(i2c_smbus_read_word_data(client, reg));
694}
695
696static int ad7879_write(struct i2c_client *client, u8 reg, u16 val)
697{
698 return i2c_smbus_write_word_data(client, reg, swab16(val));
699}
700
701static void ad7879_collect(struct ad7879 *ts)
702{
703 int i;
704
705 for (i = 0; i < AD7879_NR_SENSE; i++)
706 ts->conversion_data[i] = ad7879_read(ts->bus,
707 AD7879_REG_XPLUS + i);
708}
709
710static int __devinit ad7879_probe(struct i2c_client *client,
711 const struct i2c_device_id *id)
712{
713 struct ad7879 *ts;
714 int error;
715
716 if (!i2c_check_functionality(client->adapter,
717 I2C_FUNC_SMBUS_WORD_DATA)) {
718 dev_err(&client->dev, "SMBUS Word Data not Supported\n");
719 return -EIO;
720 }
721
722 ts = kzalloc(sizeof(struct ad7879), GFP_KERNEL);
723 if (!ts)
724 return -ENOMEM;
725
726 i2c_set_clientdata(client, ts);
727 ts->bus = client;
728
729 error = ad7879_construct(client, ts);
730 if (error) {
731 i2c_set_clientdata(client, NULL);
732 kfree(ts);
733 }
734
735 return 0;
736}
737
738static int __devexit ad7879_remove(struct i2c_client *client)
739{
740 struct ad7879 *ts = dev_get_drvdata(&client->dev);
741
742 ad7879_destroy(client, ts);
743 i2c_set_clientdata(client, NULL);
744 kfree(ts);
745
746 return 0;
747}
748
749static const struct i2c_device_id ad7879_id[] = {
750 { "ad7879", 0 },
751 { }
752};
753MODULE_DEVICE_TABLE(i2c, ad7879_id);
754
755static struct i2c_driver ad7879_driver = {
756 .driver = {
757 .name = "ad7879",
758 .owner = THIS_MODULE,
759 },
760 .probe = ad7879_probe,
761 .remove = __devexit_p(ad7879_remove),
762 .suspend = ad7879_suspend,
763 .resume = ad7879_resume,
764 .id_table = ad7879_id,
765};
766
767static int __init ad7879_init(void)
768{
769 return i2c_add_driver(&ad7879_driver);
770}
771module_init(ad7879_init);
772
773static void __exit ad7879_exit(void)
774{
775 i2c_del_driver(&ad7879_driver);
776}
777module_exit(ad7879_exit);
778#endif
779
780MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
781MODULE_DESCRIPTION("AD7879(-1) touchscreen Driver");
782MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/mainstone-wm97xx.c b/drivers/input/touchscreen/mainstone-wm97xx.c
index 1d11e2be9ef8..dfa6a84ab50a 100644
--- a/drivers/input/touchscreen/mainstone-wm97xx.c
+++ b/drivers/input/touchscreen/mainstone-wm97xx.c
@@ -162,6 +162,7 @@ static int wm97xx_acc_pen_down(struct wm97xx *wm)
162 input_report_abs(wm->input_dev, ABS_X, x & 0xfff); 162 input_report_abs(wm->input_dev, ABS_X, x & 0xfff);
163 input_report_abs(wm->input_dev, ABS_Y, y & 0xfff); 163 input_report_abs(wm->input_dev, ABS_Y, y & 0xfff);
164 input_report_abs(wm->input_dev, ABS_PRESSURE, p & 0xfff); 164 input_report_abs(wm->input_dev, ABS_PRESSURE, p & 0xfff);
165 input_report_key(wm->input_dev, BTN_TOUCH, (p != 0));
165 input_sync(wm->input_dev); 166 input_sync(wm->input_dev);
166 reads++; 167 reads++;
167 } while (reads < cinfo[sp_idx].reads); 168 } while (reads < cinfo[sp_idx].reads);
@@ -245,7 +246,7 @@ static void wm97xx_irq_enable(struct wm97xx *wm, int enable)
245 if (enable) 246 if (enable)
246 enable_irq(wm->pen_irq); 247 enable_irq(wm->pen_irq);
247 else 248 else
248 disable_irq(wm->pen_irq); 249 disable_irq_nosync(wm->pen_irq);
249} 250}
250 251
251static struct wm97xx_mach_ops mainstone_mach_ops = { 252static struct wm97xx_mach_ops mainstone_mach_ops = {
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index 54986627def0..e868264fe799 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -151,12 +151,14 @@ static void ucb1400_ts_evt_add(struct input_dev *idev, u16 pressure, u16 x, u16
151 input_report_abs(idev, ABS_X, x); 151 input_report_abs(idev, ABS_X, x);
152 input_report_abs(idev, ABS_Y, y); 152 input_report_abs(idev, ABS_Y, y);
153 input_report_abs(idev, ABS_PRESSURE, pressure); 153 input_report_abs(idev, ABS_PRESSURE, pressure);
154 input_report_key(idev, BTN_TOUCH, 1);
154 input_sync(idev); 155 input_sync(idev);
155} 156}
156 157
157static void ucb1400_ts_event_release(struct input_dev *idev) 158static void ucb1400_ts_event_release(struct input_dev *idev)
158{ 159{
159 input_report_abs(idev, ABS_PRESSURE, 0); 160 input_report_abs(idev, ABS_PRESSURE, 0);
161 input_report_key(idev, BTN_TOUCH, 0);
160 input_sync(idev); 162 input_sync(idev);
161} 163}
162 164
@@ -377,7 +379,8 @@ static int ucb1400_ts_probe(struct platform_device *dev)
377 ucb->ts_idev->id.product = ucb->id; 379 ucb->ts_idev->id.product = ucb->id;
378 ucb->ts_idev->open = ucb1400_ts_open; 380 ucb->ts_idev->open = ucb1400_ts_open;
379 ucb->ts_idev->close = ucb1400_ts_close; 381 ucb->ts_idev->close = ucb1400_ts_close;
380 ucb->ts_idev->evbit[0] = BIT_MASK(EV_ABS); 382 ucb->ts_idev->evbit[0] = BIT_MASK(EV_ABS) | BIT_MASK(EV_KEY);
383 ucb->ts_idev->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
381 384
382 ucb1400_adc_enable(ucb->ac97); 385 ucb1400_adc_enable(ucb->ac97);
383 x_res = ucb1400_ts_read_xres(ucb); 386 x_res = ucb1400_ts_read_xres(ucb);
diff --git a/drivers/input/touchscreen/wm97xx-core.c b/drivers/input/touchscreen/wm97xx-core.c
index d15aa11d7056..cec480bffe38 100644
--- a/drivers/input/touchscreen/wm97xx-core.c
+++ b/drivers/input/touchscreen/wm97xx-core.c
@@ -409,6 +409,7 @@ static int wm97xx_read_samples(struct wm97xx *wm)
409 wm->pen_is_down = 0; 409 wm->pen_is_down = 0;
410 dev_dbg(wm->dev, "pen up\n"); 410 dev_dbg(wm->dev, "pen up\n");
411 input_report_abs(wm->input_dev, ABS_PRESSURE, 0); 411 input_report_abs(wm->input_dev, ABS_PRESSURE, 0);
412 input_report_key(wm->input_dev, BTN_TOUCH, 0);
412 input_sync(wm->input_dev); 413 input_sync(wm->input_dev);
413 } else if (!(rc & RC_AGAIN)) { 414 } else if (!(rc & RC_AGAIN)) {
414 /* We need high frequency updates only while 415 /* We need high frequency updates only while
@@ -433,6 +434,7 @@ static int wm97xx_read_samples(struct wm97xx *wm)
433 input_report_abs(wm->input_dev, ABS_X, data.x & 0xfff); 434 input_report_abs(wm->input_dev, ABS_X, data.x & 0xfff);
434 input_report_abs(wm->input_dev, ABS_Y, data.y & 0xfff); 435 input_report_abs(wm->input_dev, ABS_Y, data.y & 0xfff);
435 input_report_abs(wm->input_dev, ABS_PRESSURE, data.p & 0xfff); 436 input_report_abs(wm->input_dev, ABS_PRESSURE, data.p & 0xfff);
437 input_report_key(wm->input_dev, BTN_TOUCH, 1);
436 input_sync(wm->input_dev); 438 input_sync(wm->input_dev);
437 wm->pen_is_down = 1; 439 wm->pen_is_down = 1;
438 wm->ts_reader_interval = wm->ts_reader_min_interval; 440 wm->ts_reader_interval = wm->ts_reader_min_interval;
@@ -628,18 +630,21 @@ static int wm97xx_probe(struct device *dev)
628 wm->input_dev->phys = "wm97xx"; 630 wm->input_dev->phys = "wm97xx";
629 wm->input_dev->open = wm97xx_ts_input_open; 631 wm->input_dev->open = wm97xx_ts_input_open;
630 wm->input_dev->close = wm97xx_ts_input_close; 632 wm->input_dev->close = wm97xx_ts_input_close;
631 set_bit(EV_ABS, wm->input_dev->evbit); 633
632 set_bit(ABS_X, wm->input_dev->absbit); 634 __set_bit(EV_ABS, wm->input_dev->evbit);
633 set_bit(ABS_Y, wm->input_dev->absbit); 635 __set_bit(EV_KEY, wm->input_dev->evbit);
634 set_bit(ABS_PRESSURE, wm->input_dev->absbit); 636 __set_bit(BTN_TOUCH, wm->input_dev->keybit);
637
635 input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1], 638 input_set_abs_params(wm->input_dev, ABS_X, abs_x[0], abs_x[1],
636 abs_x[2], 0); 639 abs_x[2], 0);
637 input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1], 640 input_set_abs_params(wm->input_dev, ABS_Y, abs_y[0], abs_y[1],
638 abs_y[2], 0); 641 abs_y[2], 0);
639 input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1], 642 input_set_abs_params(wm->input_dev, ABS_PRESSURE, abs_p[0], abs_p[1],
640 abs_p[2], 0); 643 abs_p[2], 0);
644
641 input_set_drvdata(wm->input_dev, wm); 645 input_set_drvdata(wm->input_dev, wm);
642 wm->input_dev->dev.parent = dev; 646 wm->input_dev->dev.parent = dev;
647
643 ret = input_register_device(wm->input_dev); 648 ret = input_register_device(wm->input_dev);
644 if (ret < 0) 649 if (ret < 0)
645 goto dev_alloc_err; 650 goto dev_alloc_err;
diff --git a/drivers/input/touchscreen/zylonite-wm97xx.c b/drivers/input/touchscreen/zylonite-wm97xx.c
new file mode 100644
index 000000000000..41e4359c277c
--- /dev/null
+++ b/drivers/input/touchscreen/zylonite-wm97xx.c
@@ -0,0 +1,240 @@
1/*
2 * zylonite-wm97xx.c -- Zylonite Continuous Touch screen driver
3 *
4 * Copyright 2004, 2007, 2008 Wolfson Microelectronics PLC.
5 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
6 * Parts Copyright : Ian Molton <spyro@f2s.com>
7 * Andrew Zabolotny <zap@homelink.ru>
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 *
14 * Notes:
15 * This is a wm97xx extended touch driver supporting interrupt driven
16 * and continuous operation on Marvell Zylonite development systems
17 * (which have a WM9713 on board).
18 */
19
20#include <linux/module.h>
21#include <linux/moduleparam.h>
22#include <linux/kernel.h>
23#include <linux/init.h>
24#include <linux/delay.h>
25#include <linux/irq.h>
26#include <linux/interrupt.h>
27#include <linux/io.h>
28#include <linux/wm97xx.h>
29
30#include <mach/hardware.h>
31#include <mach/mfp.h>
32#include <mach/regs-ac97.h>
33
34struct continuous {
35 u16 id; /* codec id */
36 u8 code; /* continuous code */
37 u8 reads; /* number of coord reads per read cycle */
38 u32 speed; /* number of coords per second */
39};
40
41#define WM_READS(sp) ((sp / HZ) + 1)
42
43static const struct continuous cinfo[] = {
44 { WM9713_ID2, 0, WM_READS(94), 94 },
45 { WM9713_ID2, 1, WM_READS(120), 120 },
46 { WM9713_ID2, 2, WM_READS(154), 154 },
47 { WM9713_ID2, 3, WM_READS(188), 188 },
48};
49
50/* continuous speed index */
51static int sp_idx;
52
53/*
54 * Pen sampling frequency (Hz) in continuous mode.
55 */
56static int cont_rate = 200;
57module_param(cont_rate, int, 0);
58MODULE_PARM_DESC(cont_rate, "Sampling rate in continuous mode (Hz)");
59
60/*
61 * Pressure readback.
62 *
63 * Set to 1 to read back pen down pressure
64 */
65static int pressure;
66module_param(pressure, int, 0);
67MODULE_PARM_DESC(pressure, "Pressure readback (1 = pressure, 0 = no pressure)");
68
69/*
70 * AC97 touch data slot.
71 *
72 * Touch screen readback data ac97 slot
73 */
74static int ac97_touch_slot = 5;
75module_param(ac97_touch_slot, int, 0);
76MODULE_PARM_DESC(ac97_touch_slot, "Touch screen data slot AC97 number");
77
78
79/* flush AC97 slot 5 FIFO machines */
80static void wm97xx_acc_pen_up(struct wm97xx *wm)
81{
82 int i;
83
84 msleep(1);
85
86 for (i = 0; i < 16; i++)
87 MODR;
88}
89
90static int wm97xx_acc_pen_down(struct wm97xx *wm)
91{
92 u16 x, y, p = 0x100 | WM97XX_ADCSEL_PRES;
93 int reads = 0;
94 static u16 last, tries;
95
96 /* When the AC97 queue has been drained we need to allow time
97 * to buffer up samples otherwise we end up spinning polling
98 * for samples. The controller can't have a suitably low
99 * threashold set to use the notifications it gives.
100 */
101 msleep(1);
102
103 if (tries > 5) {
104 tries = 0;
105 return RC_PENUP;
106 }
107
108 x = MODR;
109 if (x == last) {
110 tries++;
111 return RC_AGAIN;
112 }
113 last = x;
114 do {
115 if (reads)
116 x = MODR;
117 y = MODR;
118 if (pressure)
119 p = MODR;
120
121 /* are samples valid */
122 if ((x & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_X ||
123 (y & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_Y ||
124 (p & WM97XX_ADCSRC_MASK) != WM97XX_ADCSEL_PRES)
125 goto up;
126
127 /* coordinate is good */
128 tries = 0;
129 input_report_abs(wm->input_dev, ABS_X, x & 0xfff);
130 input_report_abs(wm->input_dev, ABS_Y, y & 0xfff);
131 input_report_abs(wm->input_dev, ABS_PRESSURE, p & 0xfff);
132 input_report_key(wm->input_dev, BTN_TOUCH, (p != 0));
133 input_sync(wm->input_dev);
134 reads++;
135 } while (reads < cinfo[sp_idx].reads);
136up:
137 return RC_PENDOWN | RC_AGAIN;
138}
139
140static int wm97xx_acc_startup(struct wm97xx *wm)
141{
142 int idx;
143
144 /* check we have a codec */
145 if (wm->ac97 == NULL)
146 return -ENODEV;
147
148 /* Go you big red fire engine */
149 for (idx = 0; idx < ARRAY_SIZE(cinfo); idx++) {
150 if (wm->id != cinfo[idx].id)
151 continue;
152 sp_idx = idx;
153 if (cont_rate <= cinfo[idx].speed)
154 break;
155 }
156 wm->acc_rate = cinfo[sp_idx].code;
157 wm->acc_slot = ac97_touch_slot;
158 dev_info(wm->dev,
159 "zylonite accelerated touchscreen driver, %d samples/sec\n",
160 cinfo[sp_idx].speed);
161
162 return 0;
163}
164
165static void wm97xx_irq_enable(struct wm97xx *wm, int enable)
166{
167 if (enable)
168 enable_irq(wm->pen_irq);
169 else
170 disable_irq_nosync(wm->pen_irq);
171}
172
173static struct wm97xx_mach_ops zylonite_mach_ops = {
174 .acc_enabled = 1,
175 .acc_pen_up = wm97xx_acc_pen_up,
176 .acc_pen_down = wm97xx_acc_pen_down,
177 .acc_startup = wm97xx_acc_startup,
178 .irq_enable = wm97xx_irq_enable,
179 .irq_gpio = WM97XX_GPIO_2,
180};
181
182static int zylonite_wm97xx_probe(struct platform_device *pdev)
183{
184 struct wm97xx *wm = platform_get_drvdata(pdev);
185 int gpio_touch_irq;
186
187 if (cpu_is_pxa320())
188 gpio_touch_irq = mfp_to_gpio(MFP_PIN_GPIO15);
189 else
190 gpio_touch_irq = mfp_to_gpio(MFP_PIN_GPIO26);
191
192 wm->pen_irq = IRQ_GPIO(gpio_touch_irq);
193 set_irq_type(IRQ_GPIO(gpio_touch_irq), IRQ_TYPE_EDGE_BOTH);
194
195 wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN,
196 WM97XX_GPIO_POL_HIGH,
197 WM97XX_GPIO_STICKY,
198 WM97XX_GPIO_WAKE);
199 wm97xx_config_gpio(wm, WM97XX_GPIO_2, WM97XX_GPIO_OUT,
200 WM97XX_GPIO_POL_HIGH,
201 WM97XX_GPIO_NOTSTICKY,
202 WM97XX_GPIO_NOWAKE);
203
204 return wm97xx_register_mach_ops(wm, &zylonite_mach_ops);
205}
206
207static int zylonite_wm97xx_remove(struct platform_device *pdev)
208{
209 struct wm97xx *wm = platform_get_drvdata(pdev);
210
211 wm97xx_unregister_mach_ops(wm);
212
213 return 0;
214}
215
216static struct platform_driver zylonite_wm97xx_driver = {
217 .probe = zylonite_wm97xx_probe,
218 .remove = zylonite_wm97xx_remove,
219 .driver = {
220 .name = "wm97xx-touch",
221 },
222};
223
224static int __init zylonite_wm97xx_init(void)
225{
226 return platform_driver_register(&zylonite_wm97xx_driver);
227}
228
229static void __exit zylonite_wm97xx_exit(void)
230{
231 platform_driver_unregister(&zylonite_wm97xx_driver);
232}
233
234module_init(zylonite_wm97xx_init);
235module_exit(zylonite_wm97xx_exit);
236
237/* Module information */
238MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
239MODULE_DESCRIPTION("wm97xx continuous touch driver for Zylonite");
240MODULE_LICENSE("GPL");
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-29 09:37:14 -0500