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-rw-r--r--arch/arm/common/Makefile1
-rw-r--r--arch/arm/common/dmabounce.c3
-rw-r--r--arch/arm/common/it8152.c5
-rw-r--r--arch/arm/common/locomo.c66
-rw-r--r--arch/arm/common/rtctime.c435
-rw-r--r--arch/arm/common/scoop.c183
6 files changed, 200 insertions, 493 deletions
diff --git a/arch/arm/common/Makefile b/arch/arm/common/Makefile
index 3d0b9fa42f84..325e4b6a6afb 100644
--- a/arch/arm/common/Makefile
+++ b/arch/arm/common/Makefile
@@ -2,7 +2,6 @@
2# Makefile for the linux kernel. 2# Makefile for the linux kernel.
3# 3#
4 4
5obj-y += rtctime.o
6obj-$(CONFIG_ARM_GIC) += gic.o 5obj-$(CONFIG_ARM_GIC) += gic.o
7obj-$(CONFIG_ARM_VIC) += vic.o 6obj-$(CONFIG_ARM_VIC) += vic.o
8obj-$(CONFIG_ICST525) += icst525.o 7obj-$(CONFIG_ICST525) += icst525.o
diff --git a/arch/arm/common/dmabounce.c b/arch/arm/common/dmabounce.c
index 52fc6a883281..2744673314b4 100644
--- a/arch/arm/common/dmabounce.c
+++ b/arch/arm/common/dmabounce.c
@@ -650,7 +650,8 @@ EXPORT_SYMBOL(dma_map_sg);
650EXPORT_SYMBOL(dma_unmap_sg); 650EXPORT_SYMBOL(dma_unmap_sg);
651EXPORT_SYMBOL(dma_sync_single_for_cpu); 651EXPORT_SYMBOL(dma_sync_single_for_cpu);
652EXPORT_SYMBOL(dma_sync_single_for_device); 652EXPORT_SYMBOL(dma_sync_single_for_device);
653EXPORT_SYMBOL(dma_sync_sg); 653EXPORT_SYMBOL(dma_sync_sg_for_cpu);
654EXPORT_SYMBOL(dma_sync_sg_for_device);
654EXPORT_SYMBOL(dmabounce_register_dev); 655EXPORT_SYMBOL(dmabounce_register_dev);
655EXPORT_SYMBOL(dmabounce_unregister_dev); 656EXPORT_SYMBOL(dmabounce_unregister_dev);
656 657
diff --git a/arch/arm/common/it8152.c b/arch/arm/common/it8152.c
index 538262241483..5fe9588db077 100644
--- a/arch/arm/common/it8152.c
+++ b/arch/arm/common/it8152.c
@@ -120,6 +120,7 @@ void it8152_irq_demux(unsigned int irq, struct irq_desc *desc)
120 time, when they all three were 0. */ 120 time, when they all three were 0. */
121 bits_pd = __raw_readl(IT8152_INTC_PDCNIRR); 121 bits_pd = __raw_readl(IT8152_INTC_PDCNIRR);
122 bits_lp = __raw_readl(IT8152_INTC_LPCNIRR); 122 bits_lp = __raw_readl(IT8152_INTC_LPCNIRR);
123 bits_ld = __raw_readl(IT8152_INTC_LDCNIRR);
123 if (!(bits_ld | bits_lp | bits_pd)) 124 if (!(bits_ld | bits_lp | bits_pd))
124 return; 125 return;
125 } 126 }
@@ -133,14 +134,14 @@ void it8152_irq_demux(unsigned int irq, struct irq_desc *desc)
133 134
134 bits_lp &= ((1 << IT8152_LP_IRQ_COUNT) - 1); 135 bits_lp &= ((1 << IT8152_LP_IRQ_COUNT) - 1);
135 while (bits_lp) { 136 while (bits_lp) {
136 i = __ffs(bits_pd); 137 i = __ffs(bits_lp);
137 it8152_irq(IT8152_LP_IRQ(i)); 138 it8152_irq(IT8152_LP_IRQ(i));
138 bits_lp &= ~(1 << i); 139 bits_lp &= ~(1 << i);
139 } 140 }
140 141
141 bits_ld &= ((1 << IT8152_LD_IRQ_COUNT) - 1); 142 bits_ld &= ((1 << IT8152_LD_IRQ_COUNT) - 1);
142 while (bits_ld) { 143 while (bits_ld) {
143 i = __ffs(bits_pd); 144 i = __ffs(bits_ld);
144 it8152_irq(IT8152_LD_IRQ(i)); 145 it8152_irq(IT8152_LD_IRQ(i));
145 bits_ld &= ~(1 << i); 146 bits_ld &= ~(1 << i);
146 } 147 }
diff --git a/arch/arm/common/locomo.c b/arch/arm/common/locomo.c
index ae21755872ed..d973c986f721 100644
--- a/arch/arm/common/locomo.c
+++ b/arch/arm/common/locomo.c
@@ -321,11 +321,42 @@ static void locomo_gpio_unmask_irq(unsigned int irq)
321 locomo_writel(r, mapbase + LOCOMO_GIE); 321 locomo_writel(r, mapbase + LOCOMO_GIE);
322} 322}
323 323
324static int GPIO_IRQ_rising_edge;
325static int GPIO_IRQ_falling_edge;
326
327static int locomo_gpio_type(unsigned int irq, unsigned int type)
328{
329 unsigned int mask;
330 void __iomem *mapbase = get_irq_chip_data(irq);
331
332 mask = 1 << (irq - LOCOMO_IRQ_GPIO_START);
333
334 if (type == IRQT_PROBE) {
335 if ((GPIO_IRQ_rising_edge | GPIO_IRQ_falling_edge) & mask)
336 return 0;
337 type = __IRQT_RISEDGE | __IRQT_FALEDGE;
338 }
339
340 if (type & __IRQT_RISEDGE)
341 GPIO_IRQ_rising_edge |= mask;
342 else
343 GPIO_IRQ_rising_edge &= ~mask;
344 if (type & __IRQT_FALEDGE)
345 GPIO_IRQ_falling_edge |= mask;
346 else
347 GPIO_IRQ_falling_edge &= ~mask;
348 locomo_writel(GPIO_IRQ_rising_edge, mapbase + LOCOMO_GRIE);
349 locomo_writel(GPIO_IRQ_falling_edge, mapbase + LOCOMO_GFIE);
350
351 return 0;
352}
353
324static struct irq_chip locomo_gpio_chip = { 354static struct irq_chip locomo_gpio_chip = {
325 .name = "LOCOMO-gpio", 355 .name = "LOCOMO-gpio",
326 .ack = locomo_gpio_ack_irq, 356 .ack = locomo_gpio_ack_irq,
327 .mask = locomo_gpio_mask_irq, 357 .mask = locomo_gpio_mask_irq,
328 .unmask = locomo_gpio_unmask_irq, 358 .unmask = locomo_gpio_unmask_irq,
359 .set_type = locomo_gpio_type,
329}; 360};
330 361
331static void locomo_lt_handler(unsigned int irq, struct irq_desc *desc) 362static void locomo_lt_handler(unsigned int irq, struct irq_desc *desc)
@@ -450,22 +481,18 @@ static void locomo_setup_irq(struct locomo *lchip)
450 set_irq_chip(IRQ_LOCOMO_KEY_BASE, &locomo_chip); 481 set_irq_chip(IRQ_LOCOMO_KEY_BASE, &locomo_chip);
451 set_irq_chip_data(IRQ_LOCOMO_KEY_BASE, irqbase); 482 set_irq_chip_data(IRQ_LOCOMO_KEY_BASE, irqbase);
452 set_irq_chained_handler(IRQ_LOCOMO_KEY_BASE, locomo_key_handler); 483 set_irq_chained_handler(IRQ_LOCOMO_KEY_BASE, locomo_key_handler);
453 set_irq_flags(IRQ_LOCOMO_KEY_BASE, IRQF_VALID | IRQF_PROBE);
454 484
455 set_irq_chip(IRQ_LOCOMO_GPIO_BASE, &locomo_chip); 485 set_irq_chip(IRQ_LOCOMO_GPIO_BASE, &locomo_chip);
456 set_irq_chip_data(IRQ_LOCOMO_GPIO_BASE, irqbase); 486 set_irq_chip_data(IRQ_LOCOMO_GPIO_BASE, irqbase);
457 set_irq_chained_handler(IRQ_LOCOMO_GPIO_BASE, locomo_gpio_handler); 487 set_irq_chained_handler(IRQ_LOCOMO_GPIO_BASE, locomo_gpio_handler);
458 set_irq_flags(IRQ_LOCOMO_GPIO_BASE, IRQF_VALID | IRQF_PROBE);
459 488
460 set_irq_chip(IRQ_LOCOMO_LT_BASE, &locomo_chip); 489 set_irq_chip(IRQ_LOCOMO_LT_BASE, &locomo_chip);
461 set_irq_chip_data(IRQ_LOCOMO_LT_BASE, irqbase); 490 set_irq_chip_data(IRQ_LOCOMO_LT_BASE, irqbase);
462 set_irq_chained_handler(IRQ_LOCOMO_LT_BASE, locomo_lt_handler); 491 set_irq_chained_handler(IRQ_LOCOMO_LT_BASE, locomo_lt_handler);
463 set_irq_flags(IRQ_LOCOMO_LT_BASE, IRQF_VALID | IRQF_PROBE);
464 492
465 set_irq_chip(IRQ_LOCOMO_SPI_BASE, &locomo_chip); 493 set_irq_chip(IRQ_LOCOMO_SPI_BASE, &locomo_chip);
466 set_irq_chip_data(IRQ_LOCOMO_SPI_BASE, irqbase); 494 set_irq_chip_data(IRQ_LOCOMO_SPI_BASE, irqbase);
467 set_irq_chained_handler(IRQ_LOCOMO_SPI_BASE, locomo_spi_handler); 495 set_irq_chained_handler(IRQ_LOCOMO_SPI_BASE, locomo_spi_handler);
468 set_irq_flags(IRQ_LOCOMO_SPI_BASE, IRQF_VALID | IRQF_PROBE);
469 496
470 /* install handlers for IRQ_LOCOMO_KEY_BASE generated interrupts */ 497 /* install handlers for IRQ_LOCOMO_KEY_BASE generated interrupts */
471 set_irq_chip(LOCOMO_IRQ_KEY_START, &locomo_key_chip); 498 set_irq_chip(LOCOMO_IRQ_KEY_START, &locomo_key_chip);
@@ -488,7 +515,7 @@ static void locomo_setup_irq(struct locomo *lchip)
488 set_irq_flags(LOCOMO_IRQ_LT_START, IRQF_VALID | IRQF_PROBE); 515 set_irq_flags(LOCOMO_IRQ_LT_START, IRQF_VALID | IRQF_PROBE);
489 516
490 /* install handlers for IRQ_LOCOMO_SPI_BASE generated interrupts */ 517 /* install handlers for IRQ_LOCOMO_SPI_BASE generated interrupts */
491 for (irq = LOCOMO_IRQ_SPI_START; irq < LOCOMO_IRQ_SPI_START + 3; irq++) { 518 for (irq = LOCOMO_IRQ_SPI_START; irq < LOCOMO_IRQ_SPI_START + 4; irq++) {
492 set_irq_chip(irq, &locomo_spi_chip); 519 set_irq_chip(irq, &locomo_spi_chip);
493 set_irq_chip_data(irq, irqbase); 520 set_irq_chip_data(irq, irqbase);
494 set_irq_handler(irq, handle_edge_irq); 521 set_irq_handler(irq, handle_edge_irq);
@@ -574,20 +601,20 @@ static int locomo_suspend(struct platform_device *dev, pm_message_t state)
574 601
575 save->LCM_GPO = locomo_readl(lchip->base + LOCOMO_GPO); /* GPIO */ 602 save->LCM_GPO = locomo_readl(lchip->base + LOCOMO_GPO); /* GPIO */
576 locomo_writel(0x00, lchip->base + LOCOMO_GPO); 603 locomo_writel(0x00, lchip->base + LOCOMO_GPO);
577 save->LCM_SPICT = locomo_readl(lchip->base + LOCOMO_SPICT); /* SPI */ 604 save->LCM_SPICT = locomo_readl(lchip->base + LOCOMO_SPI + LOCOMO_SPICT); /* SPI */
578 locomo_writel(0x40, lchip->base + LOCOMO_SPICT); 605 locomo_writel(0x40, lchip->base + LOCOMO_SPICT);
579 save->LCM_GPE = locomo_readl(lchip->base + LOCOMO_GPE); /* GPIO */ 606 save->LCM_GPE = locomo_readl(lchip->base + LOCOMO_GPE); /* GPIO */
580 locomo_writel(0x00, lchip->base + LOCOMO_GPE); 607 locomo_writel(0x00, lchip->base + LOCOMO_GPE);
581 save->LCM_ASD = locomo_readl(lchip->base + LOCOMO_ASD); /* ADSTART */ 608 save->LCM_ASD = locomo_readl(lchip->base + LOCOMO_ASD); /* ADSTART */
582 locomo_writel(0x00, lchip->base + LOCOMO_ASD); 609 locomo_writel(0x00, lchip->base + LOCOMO_ASD);
583 save->LCM_SPIMD = locomo_readl(lchip->base + LOCOMO_SPIMD); /* SPI */ 610 save->LCM_SPIMD = locomo_readl(lchip->base + LOCOMO_SPI + LOCOMO_SPIMD); /* SPI */
584 locomo_writel(0x3C14, lchip->base + LOCOMO_SPIMD); 611 locomo_writel(0x3C14, lchip->base + LOCOMO_SPI + LOCOMO_SPIMD);
585 612
586 locomo_writel(0x00, lchip->base + LOCOMO_PAIF); 613 locomo_writel(0x00, lchip->base + LOCOMO_PAIF);
587 locomo_writel(0x00, lchip->base + LOCOMO_DAC); 614 locomo_writel(0x00, lchip->base + LOCOMO_DAC);
588 locomo_writel(0x00, lchip->base + LOCOMO_BACKLIGHT + LOCOMO_TC); 615 locomo_writel(0x00, lchip->base + LOCOMO_BACKLIGHT + LOCOMO_TC);
589 616
590 if ( (locomo_readl(lchip->base + LOCOMO_LED + LOCOMO_LPT0) & 0x88) && (locomo_readl(lchip->base + LOCOMO_LED + LOCOMO_LPT1) & 0x88) ) 617 if ((locomo_readl(lchip->base + LOCOMO_LED + LOCOMO_LPT0) & 0x88) && (locomo_readl(lchip->base + LOCOMO_LED + LOCOMO_LPT1) & 0x88))
591 locomo_writel(0x00, lchip->base + LOCOMO_C32K); /* CLK32 off */ 618 locomo_writel(0x00, lchip->base + LOCOMO_C32K); /* CLK32 off */
592 else 619 else
593 /* 18MHz already enabled, so no wait */ 620 /* 18MHz already enabled, so no wait */
@@ -616,10 +643,10 @@ static int locomo_resume(struct platform_device *dev)
616 spin_lock_irqsave(&lchip->lock, flags); 643 spin_lock_irqsave(&lchip->lock, flags);
617 644
618 locomo_writel(save->LCM_GPO, lchip->base + LOCOMO_GPO); 645 locomo_writel(save->LCM_GPO, lchip->base + LOCOMO_GPO);
619 locomo_writel(save->LCM_SPICT, lchip->base + LOCOMO_SPICT); 646 locomo_writel(save->LCM_SPICT, lchip->base + LOCOMO_SPI + LOCOMO_SPICT);
620 locomo_writel(save->LCM_GPE, lchip->base + LOCOMO_GPE); 647 locomo_writel(save->LCM_GPE, lchip->base + LOCOMO_GPE);
621 locomo_writel(save->LCM_ASD, lchip->base + LOCOMO_ASD); 648 locomo_writel(save->LCM_ASD, lchip->base + LOCOMO_ASD);
622 locomo_writel(save->LCM_SPIMD, lchip->base + LOCOMO_SPIMD); 649 locomo_writel(save->LCM_SPIMD, lchip->base + LOCOMO_SPI + LOCOMO_SPIMD);
623 650
624 locomo_writel(0x00, lchip->base + LOCOMO_C32K); 651 locomo_writel(0x00, lchip->base + LOCOMO_C32K);
625 locomo_writel(0x90, lchip->base + LOCOMO_TADC); 652 locomo_writel(0x90, lchip->base + LOCOMO_TADC);
@@ -688,9 +715,9 @@ __locomo_probe(struct device *me, struct resource *mem, int irq)
688 715
689 /* GPIO */ 716 /* GPIO */
690 locomo_writel(0, lchip->base + LOCOMO_GPO); 717 locomo_writel(0, lchip->base + LOCOMO_GPO);
691 locomo_writel( (LOCOMO_GPIO(2) | LOCOMO_GPIO(3) | LOCOMO_GPIO(13) | LOCOMO_GPIO(14)) 718 locomo_writel((LOCOMO_GPIO(1) | LOCOMO_GPIO(2) | LOCOMO_GPIO(13) | LOCOMO_GPIO(14))
692 , lchip->base + LOCOMO_GPE); 719 , lchip->base + LOCOMO_GPE);
693 locomo_writel( (LOCOMO_GPIO(2) | LOCOMO_GPIO(3) | LOCOMO_GPIO(13) | LOCOMO_GPIO(14)) 720 locomo_writel((LOCOMO_GPIO(1) | LOCOMO_GPIO(2) | LOCOMO_GPIO(13) | LOCOMO_GPIO(14))
694 , lchip->base + LOCOMO_GPD); 721 , lchip->base + LOCOMO_GPD);
695 locomo_writel(0, lchip->base + LOCOMO_GIE); 722 locomo_writel(0, lchip->base + LOCOMO_GIE);
696 723
@@ -833,7 +860,10 @@ void locomo_gpio_set_dir(struct device *dev, unsigned int bits, unsigned int dir
833 spin_lock_irqsave(&lchip->lock, flags); 860 spin_lock_irqsave(&lchip->lock, flags);
834 861
835 r = locomo_readl(lchip->base + LOCOMO_GPD); 862 r = locomo_readl(lchip->base + LOCOMO_GPD);
836 r &= ~bits; 863 if (dir)
864 r |= bits;
865 else
866 r &= ~bits;
837 locomo_writel(r, lchip->base + LOCOMO_GPD); 867 locomo_writel(r, lchip->base + LOCOMO_GPD);
838 868
839 r = locomo_readl(lchip->base + LOCOMO_GPE); 869 r = locomo_readl(lchip->base + LOCOMO_GPE);
diff --git a/arch/arm/common/rtctime.c b/arch/arm/common/rtctime.c
deleted file mode 100644
index f53bca46e23c..000000000000
--- a/arch/arm/common/rtctime.c
+++ /dev/null
@@ -1,435 +0,0 @@
1/*
2 * linux/arch/arm/common/rtctime.c
3 *
4 * Copyright (C) 2003 Deep Blue Solutions Ltd.
5 * Based on sa1100-rtc.c, Nils Faerber, CIH, Nicolas Pitre.
6 * Based on rtc.c by Paul Gortmaker
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 version 2 as
10 * published by the Free Software Foundation.
11 */
12#include <linux/module.h>
13#include <linux/kernel.h>
14#include <linux/time.h>
15#include <linux/rtc.h>
16#include <linux/poll.h>
17#include <linux/proc_fs.h>
18#include <linux/miscdevice.h>
19#include <linux/spinlock.h>
20#include <linux/capability.h>
21#include <linux/device.h>
22#include <linux/mutex.h>
23
24#include <asm/rtc.h>
25#include <asm/semaphore.h>
26
27static DECLARE_WAIT_QUEUE_HEAD(rtc_wait);
28static struct fasync_struct *rtc_async_queue;
29
30/*
31 * rtc_lock protects rtc_irq_data
32 */
33static DEFINE_SPINLOCK(rtc_lock);
34static unsigned long rtc_irq_data;
35
36/*
37 * rtc_sem protects rtc_inuse and rtc_ops
38 */
39static DEFINE_MUTEX(rtc_mutex);
40static unsigned long rtc_inuse;
41static struct rtc_ops *rtc_ops;
42
43#define rtc_epoch 1900UL
44
45/*
46 * Calculate the next alarm time given the requested alarm time mask
47 * and the current time.
48 */
49void rtc_next_alarm_time(struct rtc_time *next, struct rtc_time *now, struct rtc_time *alrm)
50{
51 unsigned long next_time;
52 unsigned long now_time;
53
54 next->tm_year = now->tm_year;
55 next->tm_mon = now->tm_mon;
56 next->tm_mday = now->tm_mday;
57 next->tm_hour = alrm->tm_hour;
58 next->tm_min = alrm->tm_min;
59 next->tm_sec = alrm->tm_sec;
60
61 rtc_tm_to_time(now, &now_time);
62 rtc_tm_to_time(next, &next_time);
63
64 if (next_time < now_time) {
65 /* Advance one day */
66 next_time += 60 * 60 * 24;
67 rtc_time_to_tm(next_time, next);
68 }
69}
70EXPORT_SYMBOL(rtc_next_alarm_time);
71
72static inline int rtc_arm_read_time(struct rtc_ops *ops, struct rtc_time *tm)
73{
74 memset(tm, 0, sizeof(struct rtc_time));
75 return ops->read_time(tm);
76}
77
78static inline int rtc_arm_set_time(struct rtc_ops *ops, struct rtc_time *tm)
79{
80 int ret;
81
82 ret = rtc_valid_tm(tm);
83 if (ret == 0)
84 ret = ops->set_time(tm);
85
86 return ret;
87}
88
89static inline int rtc_arm_read_alarm(struct rtc_ops *ops, struct rtc_wkalrm *alrm)
90{
91 int ret = -EINVAL;
92 if (ops->read_alarm) {
93 memset(alrm, 0, sizeof(struct rtc_wkalrm));
94 ret = ops->read_alarm(alrm);
95 }
96 return ret;
97}
98
99static inline int rtc_arm_set_alarm(struct rtc_ops *ops, struct rtc_wkalrm *alrm)
100{
101 int ret = -EINVAL;
102 if (ops->set_alarm)
103 ret = ops->set_alarm(alrm);
104 return ret;
105}
106
107void rtc_update(unsigned long num, unsigned long events)
108{
109 spin_lock(&rtc_lock);
110 rtc_irq_data = (rtc_irq_data + (num << 8)) | events;
111 spin_unlock(&rtc_lock);
112
113 wake_up_interruptible(&rtc_wait);
114 kill_fasync(&rtc_async_queue, SIGIO, POLL_IN);
115}
116EXPORT_SYMBOL(rtc_update);
117
118
119static ssize_t
120rtc_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
121{
122 DECLARE_WAITQUEUE(wait, current);
123 unsigned long data;
124 ssize_t ret;
125
126 if (count < sizeof(unsigned long))
127 return -EINVAL;
128
129 add_wait_queue(&rtc_wait, &wait);
130 do {
131 __set_current_state(TASK_INTERRUPTIBLE);
132
133 spin_lock_irq(&rtc_lock);
134 data = rtc_irq_data;
135 rtc_irq_data = 0;
136 spin_unlock_irq(&rtc_lock);
137
138 if (data != 0) {
139 ret = 0;
140 break;
141 }
142 if (file->f_flags & O_NONBLOCK) {
143 ret = -EAGAIN;
144 break;
145 }
146 if (signal_pending(current)) {
147 ret = -ERESTARTSYS;
148 break;
149 }
150 schedule();
151 } while (1);
152 set_current_state(TASK_RUNNING);
153 remove_wait_queue(&rtc_wait, &wait);
154
155 if (ret == 0) {
156 ret = put_user(data, (unsigned long __user *)buf);
157 if (ret == 0)
158 ret = sizeof(unsigned long);
159 }
160 return ret;
161}
162
163static unsigned int rtc_poll(struct file *file, poll_table *wait)
164{
165 unsigned long data;
166
167 poll_wait(file, &rtc_wait, wait);
168
169 spin_lock_irq(&rtc_lock);
170 data = rtc_irq_data;
171 spin_unlock_irq(&rtc_lock);
172
173 return data != 0 ? POLLIN | POLLRDNORM : 0;
174}
175
176static int rtc_ioctl(struct inode *inode, struct file *file, unsigned int cmd,
177 unsigned long arg)
178{
179 struct rtc_ops *ops = file->private_data;
180 struct rtc_time tm;
181 struct rtc_wkalrm alrm;
182 void __user *uarg = (void __user *)arg;
183 int ret = -EINVAL;
184
185 switch (cmd) {
186 case RTC_ALM_READ:
187 ret = rtc_arm_read_alarm(ops, &alrm);
188 if (ret)
189 break;
190 ret = copy_to_user(uarg, &alrm.time, sizeof(tm));
191 if (ret)
192 ret = -EFAULT;
193 break;
194
195 case RTC_ALM_SET:
196 ret = copy_from_user(&alrm.time, uarg, sizeof(tm));
197 if (ret) {
198 ret = -EFAULT;
199 break;
200 }
201 alrm.enabled = 0;
202 alrm.pending = 0;
203 alrm.time.tm_mday = -1;
204 alrm.time.tm_mon = -1;
205 alrm.time.tm_year = -1;
206 alrm.time.tm_wday = -1;
207 alrm.time.tm_yday = -1;
208 alrm.time.tm_isdst = -1;
209 ret = rtc_arm_set_alarm(ops, &alrm);
210 break;
211
212 case RTC_RD_TIME:
213 ret = rtc_arm_read_time(ops, &tm);
214 if (ret)
215 break;
216 ret = copy_to_user(uarg, &tm, sizeof(tm));
217 if (ret)
218 ret = -EFAULT;
219 break;
220
221 case RTC_SET_TIME:
222 if (!capable(CAP_SYS_TIME)) {
223 ret = -EACCES;
224 break;
225 }
226 ret = copy_from_user(&tm, uarg, sizeof(tm));
227 if (ret) {
228 ret = -EFAULT;
229 break;
230 }
231 ret = rtc_arm_set_time(ops, &tm);
232 break;
233
234 case RTC_EPOCH_SET:
235#ifndef rtc_epoch
236 /*
237 * There were no RTC clocks before 1900.
238 */
239 if (arg < 1900) {
240 ret = -EINVAL;
241 break;
242 }
243 if (!capable(CAP_SYS_TIME)) {
244 ret = -EACCES;
245 break;
246 }
247 rtc_epoch = arg;
248 ret = 0;
249#endif
250 break;
251
252 case RTC_EPOCH_READ:
253 ret = put_user(rtc_epoch, (unsigned long __user *)uarg);
254 break;
255
256 case RTC_WKALM_SET:
257 ret = copy_from_user(&alrm, uarg, sizeof(alrm));
258 if (ret) {
259 ret = -EFAULT;
260 break;
261 }
262 ret = rtc_arm_set_alarm(ops, &alrm);
263 break;
264
265 case RTC_WKALM_RD:
266 ret = rtc_arm_read_alarm(ops, &alrm);
267 if (ret)
268 break;
269 ret = copy_to_user(uarg, &alrm, sizeof(alrm));
270 if (ret)
271 ret = -EFAULT;
272 break;
273
274 default:
275 if (ops->ioctl)
276 ret = ops->ioctl(cmd, arg);
277 break;
278 }
279 return ret;
280}
281
282static int rtc_open(struct inode *inode, struct file *file)
283{
284 int ret;
285
286 mutex_lock(&rtc_mutex);
287
288 if (rtc_inuse) {
289 ret = -EBUSY;
290 } else if (!rtc_ops || !try_module_get(rtc_ops->owner)) {
291 ret = -ENODEV;
292 } else {
293 file->private_data = rtc_ops;
294
295 ret = rtc_ops->open ? rtc_ops->open() : 0;
296 if (ret == 0) {
297 spin_lock_irq(&rtc_lock);
298 rtc_irq_data = 0;
299 spin_unlock_irq(&rtc_lock);
300
301 rtc_inuse = 1;
302 }
303 }
304 mutex_unlock(&rtc_mutex);
305
306 return ret;
307}
308
309static int rtc_release(struct inode *inode, struct file *file)
310{
311 struct rtc_ops *ops = file->private_data;
312
313 if (ops->release)
314 ops->release();
315
316 spin_lock_irq(&rtc_lock);
317 rtc_irq_data = 0;
318 spin_unlock_irq(&rtc_lock);
319
320 module_put(rtc_ops->owner);
321 rtc_inuse = 0;
322
323 return 0;
324}
325
326static int rtc_fasync(int fd, struct file *file, int on)
327{
328 return fasync_helper(fd, file, on, &rtc_async_queue);
329}
330
331static const struct file_operations rtc_fops = {
332 .owner = THIS_MODULE,
333 .llseek = no_llseek,
334 .read = rtc_read,
335 .poll = rtc_poll,
336 .ioctl = rtc_ioctl,
337 .open = rtc_open,
338 .release = rtc_release,
339 .fasync = rtc_fasync,
340};
341
342static struct miscdevice rtc_miscdev = {
343 .minor = RTC_MINOR,
344 .name = "rtc",
345 .fops = &rtc_fops,
346};
347
348
349static int rtc_read_proc(char *page, char **start, off_t off, int count, int *eof, void *data)
350{
351 struct rtc_ops *ops = data;
352 struct rtc_wkalrm alrm;
353 struct rtc_time tm;
354 char *p = page;
355
356 if (rtc_arm_read_time(ops, &tm) == 0) {
357 p += sprintf(p,
358 "rtc_time\t: %02d:%02d:%02d\n"
359 "rtc_date\t: %04d-%02d-%02d\n"
360 "rtc_epoch\t: %04lu\n",
361 tm.tm_hour, tm.tm_min, tm.tm_sec,
362 tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
363 rtc_epoch);
364 }
365
366 if (rtc_arm_read_alarm(ops, &alrm) == 0) {
367 p += sprintf(p, "alrm_time\t: ");
368 if ((unsigned int)alrm.time.tm_hour <= 24)
369 p += sprintf(p, "%02d:", alrm.time.tm_hour);
370 else
371 p += sprintf(p, "**:");
372 if ((unsigned int)alrm.time.tm_min <= 59)
373 p += sprintf(p, "%02d:", alrm.time.tm_min);
374 else
375 p += sprintf(p, "**:");
376 if ((unsigned int)alrm.time.tm_sec <= 59)
377 p += sprintf(p, "%02d\n", alrm.time.tm_sec);
378 else
379 p += sprintf(p, "**\n");
380
381 p += sprintf(p, "alrm_date\t: ");
382 if ((unsigned int)alrm.time.tm_year <= 200)
383 p += sprintf(p, "%04d-", alrm.time.tm_year + 1900);
384 else
385 p += sprintf(p, "****-");
386 if ((unsigned int)alrm.time.tm_mon <= 11)
387 p += sprintf(p, "%02d-", alrm.time.tm_mon + 1);
388 else
389 p += sprintf(p, "**-");
390 if ((unsigned int)alrm.time.tm_mday <= 31)
391 p += sprintf(p, "%02d\n", alrm.time.tm_mday);
392 else
393 p += sprintf(p, "**\n");
394 p += sprintf(p, "alrm_wakeup\t: %s\n",
395 alrm.enabled ? "yes" : "no");
396 p += sprintf(p, "alrm_pending\t: %s\n",
397 alrm.pending ? "yes" : "no");
398 }
399
400 if (ops->proc)
401 p += ops->proc(p);
402
403 return p - page;
404}
405
406int register_rtc(struct rtc_ops *ops)
407{
408 int ret = -EBUSY;
409
410 mutex_lock(&rtc_mutex);
411 if (rtc_ops == NULL) {
412 rtc_ops = ops;
413
414 ret = misc_register(&rtc_miscdev);
415 if (ret == 0)
416 create_proc_read_entry("driver/rtc", 0, NULL,
417 rtc_read_proc, ops);
418 }
419 mutex_unlock(&rtc_mutex);
420
421 return ret;
422}
423EXPORT_SYMBOL(register_rtc);
424
425void unregister_rtc(struct rtc_ops *rtc)
426{
427 mutex_lock(&rtc_mutex);
428 if (rtc == rtc_ops) {
429 remove_proc_entry("driver/rtc", NULL);
430 misc_deregister(&rtc_miscdev);
431 rtc_ops = NULL;
432 }
433 mutex_unlock(&rtc_mutex);
434}
435EXPORT_SYMBOL(unregister_rtc);
diff --git a/arch/arm/common/scoop.c b/arch/arm/common/scoop.c
index 314ebd3a1d71..bc299b07a6fa 100644
--- a/arch/arm/common/scoop.c
+++ b/arch/arm/common/scoop.c
@@ -16,6 +16,7 @@
16#include <linux/slab.h> 16#include <linux/slab.h>
17#include <linux/platform_device.h> 17#include <linux/platform_device.h>
18#include <asm/io.h> 18#include <asm/io.h>
19#include <asm/gpio.h>
19#include <asm/hardware/scoop.h> 20#include <asm/hardware/scoop.h>
20 21
21/* PCMCIA to Scoop linkage 22/* PCMCIA to Scoop linkage
@@ -30,10 +31,9 @@
30struct scoop_pcmcia_config *platform_scoop_config; 31struct scoop_pcmcia_config *platform_scoop_config;
31EXPORT_SYMBOL(platform_scoop_config); 32EXPORT_SYMBOL(platform_scoop_config);
32 33
33#define SCOOP_REG(d,adr) (*(volatile unsigned short*)(d +(adr)))
34
35struct scoop_dev { 34struct scoop_dev {
36 void *base; 35 void __iomem *base;
36 struct gpio_chip gpio;
37 spinlock_t scoop_lock; 37 spinlock_t scoop_lock;
38 unsigned short suspend_clr; 38 unsigned short suspend_clr;
39 unsigned short suspend_set; 39 unsigned short suspend_set;
@@ -44,13 +44,84 @@ void reset_scoop(struct device *dev)
44{ 44{
45 struct scoop_dev *sdev = dev_get_drvdata(dev); 45 struct scoop_dev *sdev = dev_get_drvdata(dev);
46 46
47 SCOOP_REG(sdev->base,SCOOP_MCR) = 0x0100; // 00 47 iowrite16(0x0100, sdev->base + SCOOP_MCR); // 00
48 SCOOP_REG(sdev->base,SCOOP_CDR) = 0x0000; // 04 48 iowrite16(0x0000, sdev->base + SCOOP_CDR); // 04
49 SCOOP_REG(sdev->base,SCOOP_CCR) = 0x0000; // 10 49 iowrite16(0x0000, sdev->base + SCOOP_CCR); // 10
50 SCOOP_REG(sdev->base,SCOOP_IMR) = 0x0000; // 18 50 iowrite16(0x0000, sdev->base + SCOOP_IMR); // 18
51 SCOOP_REG(sdev->base,SCOOP_IRM) = 0x00FF; // 14 51 iowrite16(0x00FF, sdev->base + SCOOP_IRM); // 14
52 SCOOP_REG(sdev->base,SCOOP_ISR) = 0x0000; // 1C 52 iowrite16(0x0000, sdev->base + SCOOP_ISR); // 1C
53 SCOOP_REG(sdev->base,SCOOP_IRM) = 0x0000; 53 iowrite16(0x0000, sdev->base + SCOOP_IRM);
54}
55
56static void __scoop_gpio_set(struct scoop_dev *sdev,
57 unsigned offset, int value)
58{
59 unsigned short gpwr;
60
61 gpwr = ioread16(sdev->base + SCOOP_GPWR);
62 if (value)
63 gpwr |= 1 << (offset + 1);
64 else
65 gpwr &= ~(1 << (offset + 1));
66 iowrite16(gpwr, sdev->base + SCOOP_GPWR);
67}
68
69static void scoop_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
70{
71 struct scoop_dev *sdev = container_of(chip, struct scoop_dev, gpio);
72 unsigned long flags;
73
74 spin_lock_irqsave(&sdev->scoop_lock, flags);
75
76 __scoop_gpio_set(sdev, offset, value);
77
78 spin_unlock_irqrestore(&sdev->scoop_lock, flags);
79}
80
81static int scoop_gpio_get(struct gpio_chip *chip, unsigned offset)
82{
83 struct scoop_dev *sdev = container_of(chip, struct scoop_dev, gpio);
84
85 /* XXX: I'm usure, but it seems so */
86 return ioread16(sdev->base + SCOOP_GPRR) & (1 << (offset + 1));
87}
88
89static int scoop_gpio_direction_input(struct gpio_chip *chip,
90 unsigned offset)
91{
92 struct scoop_dev *sdev = container_of(chip, struct scoop_dev, gpio);
93 unsigned long flags;
94 unsigned short gpcr;
95
96 spin_lock_irqsave(&sdev->scoop_lock, flags);
97
98 gpcr = ioread16(sdev->base + SCOOP_GPCR);
99 gpcr &= ~(1 << (offset + 1));
100 iowrite16(gpcr, sdev->base + SCOOP_GPCR);
101
102 spin_unlock_irqrestore(&sdev->scoop_lock, flags);
103
104 return 0;
105}
106
107static int scoop_gpio_direction_output(struct gpio_chip *chip,
108 unsigned offset, int value)
109{
110 struct scoop_dev *sdev = container_of(chip, struct scoop_dev, gpio);
111 unsigned long flags;
112 unsigned short gpcr;
113
114 spin_lock_irqsave(&sdev->scoop_lock, flags);
115
116 __scoop_gpio_set(sdev, offset, value);
117
118 gpcr = ioread16(sdev->base + SCOOP_GPCR);
119 gpcr |= 1 << (offset + 1);
120 iowrite16(gpcr, sdev->base + SCOOP_GPCR);
121
122 spin_unlock_irqrestore(&sdev->scoop_lock, flags);
123
124 return 0;
54} 125}
55 126
56unsigned short set_scoop_gpio(struct device *dev, unsigned short bit) 127unsigned short set_scoop_gpio(struct device *dev, unsigned short bit)
@@ -60,8 +131,8 @@ unsigned short set_scoop_gpio(struct device *dev, unsigned short bit)
60 struct scoop_dev *sdev = dev_get_drvdata(dev); 131 struct scoop_dev *sdev = dev_get_drvdata(dev);
61 132
62 spin_lock_irqsave(&sdev->scoop_lock, flag); 133 spin_lock_irqsave(&sdev->scoop_lock, flag);
63 gpio_bit = SCOOP_REG(sdev->base, SCOOP_GPWR) | bit; 134 gpio_bit = ioread16(sdev->base + SCOOP_GPWR) | bit;
64 SCOOP_REG(sdev->base, SCOOP_GPWR) = gpio_bit; 135 iowrite16(gpio_bit, sdev->base + SCOOP_GPWR);
65 spin_unlock_irqrestore(&sdev->scoop_lock, flag); 136 spin_unlock_irqrestore(&sdev->scoop_lock, flag);
66 137
67 return gpio_bit; 138 return gpio_bit;
@@ -74,8 +145,8 @@ unsigned short reset_scoop_gpio(struct device *dev, unsigned short bit)
74 struct scoop_dev *sdev = dev_get_drvdata(dev); 145 struct scoop_dev *sdev = dev_get_drvdata(dev);
75 146
76 spin_lock_irqsave(&sdev->scoop_lock, flag); 147 spin_lock_irqsave(&sdev->scoop_lock, flag);
77 gpio_bit = SCOOP_REG(sdev->base, SCOOP_GPWR) & ~bit; 148 gpio_bit = ioread16(sdev->base + SCOOP_GPWR) & ~bit;
78 SCOOP_REG(sdev->base,SCOOP_GPWR) = gpio_bit; 149 iowrite16(gpio_bit, sdev->base + SCOOP_GPWR);
79 spin_unlock_irqrestore(&sdev->scoop_lock, flag); 150 spin_unlock_irqrestore(&sdev->scoop_lock, flag);
80 151
81 return gpio_bit; 152 return gpio_bit;
@@ -87,13 +158,13 @@ EXPORT_SYMBOL(reset_scoop_gpio);
87unsigned short read_scoop_reg(struct device *dev, unsigned short reg) 158unsigned short read_scoop_reg(struct device *dev, unsigned short reg)
88{ 159{
89 struct scoop_dev *sdev = dev_get_drvdata(dev); 160 struct scoop_dev *sdev = dev_get_drvdata(dev);
90 return SCOOP_REG(sdev->base,reg); 161 return ioread16(sdev->base + reg);
91} 162}
92 163
93void write_scoop_reg(struct device *dev, unsigned short reg, unsigned short data) 164void write_scoop_reg(struct device *dev, unsigned short reg, unsigned short data)
94{ 165{
95 struct scoop_dev *sdev = dev_get_drvdata(dev); 166 struct scoop_dev *sdev = dev_get_drvdata(dev);
96 SCOOP_REG(sdev->base,reg)=data; 167 iowrite16(data, sdev->base + reg);
97} 168}
98 169
99EXPORT_SYMBOL(reset_scoop); 170EXPORT_SYMBOL(reset_scoop);
@@ -104,9 +175,9 @@ static void check_scoop_reg(struct scoop_dev *sdev)
104{ 175{
105 unsigned short mcr; 176 unsigned short mcr;
106 177
107 mcr = SCOOP_REG(sdev->base, SCOOP_MCR); 178 mcr = ioread16(sdev->base + SCOOP_MCR);
108 if ((mcr & 0x100) == 0) 179 if ((mcr & 0x100) == 0)
109 SCOOP_REG(sdev->base, SCOOP_MCR) = 0x0101; 180 iowrite16(0x0101, sdev->base + SCOOP_MCR);
110} 181}
111 182
112#ifdef CONFIG_PM 183#ifdef CONFIG_PM
@@ -115,8 +186,8 @@ static int scoop_suspend(struct platform_device *dev, pm_message_t state)
115 struct scoop_dev *sdev = platform_get_drvdata(dev); 186 struct scoop_dev *sdev = platform_get_drvdata(dev);
116 187
117 check_scoop_reg(sdev); 188 check_scoop_reg(sdev);
118 sdev->scoop_gpwr = SCOOP_REG(sdev->base, SCOOP_GPWR); 189 sdev->scoop_gpwr = ioread16(sdev->base + SCOOP_GPWR);
119 SCOOP_REG(sdev->base, SCOOP_GPWR) = (sdev->scoop_gpwr & ~sdev->suspend_clr) | sdev->suspend_set; 190 iowrite16((sdev->scoop_gpwr & ~sdev->suspend_clr) | sdev->suspend_set, sdev->base + SCOOP_GPWR);
120 191
121 return 0; 192 return 0;
122} 193}
@@ -126,7 +197,7 @@ static int scoop_resume(struct platform_device *dev)
126 struct scoop_dev *sdev = platform_get_drvdata(dev); 197 struct scoop_dev *sdev = platform_get_drvdata(dev);
127 198
128 check_scoop_reg(sdev); 199 check_scoop_reg(sdev);
129 SCOOP_REG(sdev->base,SCOOP_GPWR) = sdev->scoop_gpwr; 200 iowrite16(sdev->scoop_gpwr, sdev->base + SCOOP_GPWR);
130 201
131 return 0; 202 return 0;
132} 203}
@@ -135,11 +206,13 @@ static int scoop_resume(struct platform_device *dev)
135#define scoop_resume NULL 206#define scoop_resume NULL
136#endif 207#endif
137 208
138int __init scoop_probe(struct platform_device *pdev) 209static int __devinit scoop_probe(struct platform_device *pdev)
139{ 210{
140 struct scoop_dev *devptr; 211 struct scoop_dev *devptr;
141 struct scoop_config *inf; 212 struct scoop_config *inf;
142 struct resource *mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); 213 struct resource *mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
214 int ret;
215 int temp;
143 216
144 if (!mem) 217 if (!mem)
145 return -EINVAL; 218 return -EINVAL;
@@ -154,40 +227,78 @@ int __init scoop_probe(struct platform_device *pdev)
154 devptr->base = ioremap(mem->start, mem->end - mem->start + 1); 227 devptr->base = ioremap(mem->start, mem->end - mem->start + 1);
155 228
156 if (!devptr->base) { 229 if (!devptr->base) {
157 kfree(devptr); 230 ret = -ENOMEM;
158 return -ENOMEM; 231 goto err_ioremap;
159 } 232 }
160 233
161 platform_set_drvdata(pdev, devptr); 234 platform_set_drvdata(pdev, devptr);
162 235
163 printk("Sharp Scoop Device found at 0x%08x -> 0x%08x\n",(unsigned int)mem->start,(unsigned int)devptr->base); 236 printk("Sharp Scoop Device found at 0x%08x -> 0x%8p\n",(unsigned int)mem->start, devptr->base);
164 237
165 SCOOP_REG(devptr->base, SCOOP_MCR) = 0x0140; 238 iowrite16(0x0140, devptr->base + SCOOP_MCR);
166 reset_scoop(&pdev->dev); 239 reset_scoop(&pdev->dev);
167 SCOOP_REG(devptr->base, SCOOP_CPR) = 0x0000; 240 iowrite16(0x0000, devptr->base + SCOOP_CPR);
168 SCOOP_REG(devptr->base, SCOOP_GPCR) = inf->io_dir & 0xffff; 241 iowrite16(inf->io_dir & 0xffff, devptr->base + SCOOP_GPCR);
169 SCOOP_REG(devptr->base, SCOOP_GPWR) = inf->io_out & 0xffff; 242 iowrite16(inf->io_out & 0xffff, devptr->base + SCOOP_GPWR);
170 243
171 devptr->suspend_clr = inf->suspend_clr; 244 devptr->suspend_clr = inf->suspend_clr;
172 devptr->suspend_set = inf->suspend_set; 245 devptr->suspend_set = inf->suspend_set;
173 246
247 devptr->gpio.base = -1;
248
249 if (inf->gpio_base != 0) {
250 devptr->gpio.label = pdev->dev.bus_id;
251 devptr->gpio.base = inf->gpio_base;
252 devptr->gpio.ngpio = 12; /* PA11 = 0, PA12 = 1, etc. up to PA22 = 11 */
253 devptr->gpio.set = scoop_gpio_set;
254 devptr->gpio.get = scoop_gpio_get;
255 devptr->gpio.direction_input = scoop_gpio_direction_input;
256 devptr->gpio.direction_output = scoop_gpio_direction_output;
257
258 ret = gpiochip_add(&devptr->gpio);
259 if (ret)
260 goto err_gpio;
261 }
262
174 return 0; 263 return 0;
264
265 if (devptr->gpio.base != -1)
266 temp = gpiochip_remove(&devptr->gpio);
267err_gpio:
268 platform_set_drvdata(pdev, NULL);
269err_ioremap:
270 iounmap(devptr->base);
271 kfree(devptr);
272
273 return ret;
175} 274}
176 275
177static int scoop_remove(struct platform_device *pdev) 276static int __devexit scoop_remove(struct platform_device *pdev)
178{ 277{
179 struct scoop_dev *sdev = platform_get_drvdata(pdev); 278 struct scoop_dev *sdev = platform_get_drvdata(pdev);
180 if (sdev) { 279 int ret;
181 iounmap(sdev->base); 280
182 kfree(sdev); 281 if (!sdev)
183 platform_set_drvdata(pdev, NULL); 282 return -EINVAL;
283
284 if (sdev->gpio.base != -1) {
285 ret = gpiochip_remove(&sdev->gpio);
286 if (ret) {
287 dev_err(&pdev->dev, "Can't remove gpio chip: %d\n", ret);
288 return ret;
289 }
184 } 290 }
291
292 platform_set_drvdata(pdev, NULL);
293 iounmap(sdev->base);
294 kfree(sdev);
295
185 return 0; 296 return 0;
186} 297}
187 298
188static struct platform_driver scoop_driver = { 299static struct platform_driver scoop_driver = {
189 .probe = scoop_probe, 300 .probe = scoop_probe,
190 .remove = scoop_remove, 301 .remove = __devexit_p(scoop_remove),
191 .suspend = scoop_suspend, 302 .suspend = scoop_suspend,
192 .resume = scoop_resume, 303 .resume = scoop_resume,
193 .driver = { 304 .driver = {
@@ -195,7 +306,7 @@ static struct platform_driver scoop_driver = {
195 }, 306 },
196}; 307};
197 308
198int __init scoop_init(void) 309static int __init scoop_init(void)
199{ 310{
200 return platform_driver_register(&scoop_driver); 311 return platform_driver_register(&scoop_driver);
201} 312}