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[Hackndev-commit] SF.net SVN: hackndev: [922] linux4palm/linux/trunk/arch/arm/mach-pxa/ palmz72
|
From: <z7...@us...> - 2007-03-18 23:34:39
|
Revision: 922
http://svn.sourceforge.net/hackndev/?rev=922&view=rev
Author: z72ka
Date: 2007-03-18 12:54:45 -0700 (Sun, 18 Mar 2007)
Log Message:
-----------
palmz72: Clearing unused files
Removed Paths:
-------------
linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/gpioed-ng.c
linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/gpioed.c
linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/palmz72_ac97.c
Deleted: linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/gpioed-ng.c
===================================================================
--- linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/gpioed-ng.c 2007-03-18 19:46:37 UTC (rev 921)
+++ linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/gpioed-ng.c 2007-03-18 19:54:45 UTC (rev 922)
@@ -1,175 +0,0 @@
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/proc_fs.h>
-
-#include <linux/interrupt.h>
-#include <asm/irq.h>
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-#include <asm/mach-types.h>
-#include <asm/hardware.h>
-#include <linux/sched.h>
-#include <linux/workqueue.h>
-#include <asm/arch/pxa-regs.h>
-#include <asm/arch/irqs.h>
-#include <asm/uaccess.h>
-
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-
-#define PROCFS_NAME "gpio"
-#define DEBUGFS_NAME "gpio"
-
-static struct proc_dir_entry *proc_intf;
-static struct dentry *debugfs_intf;
-
-#define PROCFS_MAX_SIZE 20
-
-static char procfs_buffer[PROCFS_MAX_SIZE];
-static unsigned long procfs_buffer_size = 0;
-
-#define GPIO_TEST(reg, gp) (reg(gp) & GPIO_bit(gp))
-static int dfs_show(struct seq_file *s, void *_)
-{
- int i,afn;
- seq_printf(s, "GPIO lines status:\n");
-
- for(i=0;i<121;i++) {
- afn = (GAFR(i) & (0x3 << (((i) & 0xf)*2))) >> (((i) & 0xf)*2);
- seq_printf(s, "%s%d: %s %s %s %s %lx\n",
- i<10?"0":"",
- i,
- GPIO_TEST(GPLR, i)?"*":" ",
- GPIO_TEST(GPDR, i)?"->":"<-",
- GPIO_TEST(GRER, i)?"_/":" ",
- GPIO_TEST(GFER, i)?"\\_":" ",
- afn);
-
- }
-
- return 0;
-}
-
-static int dfs_open(struct inode *inode, struct file *file)
-{
- return single_open(file, dfs_show, inode->u.generic_ip);
-}
-
-static struct file_operations debug_fops = {
- .open = dfs_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static void gpio_set(int id, int on)
-{
- do {
- if (on)
- GPSR(id) = GPIO_bit(id);
- else
- GPCR(id) = GPIO_bit(id);
- } while (0);
-}
-
-void set_afn(int gpio, int fn)
-{
- int gafr;
- gafr = GAFR(gpio) & ~(0x3 << (((gpio) & 0xf)*2));
- GAFR(gpio) = gafr | (fn << (((gpio) & 0xf)*2));
-}
-
-void handle_request()
-{
- char *p = NULL;
- unsigned long id = simple_strtoul(procfs_buffer+2, &p, 10);
- switch(procfs_buffer[0]) {
- case 'L':
- gpio_set(id, 1);
- printk(KERN_ERR "GPIOed: GPIO %lu set high\n", id);
- break;
- case 'l':
- gpio_set(id, 0);
- printk(KERN_ERR "GPIOed: GPIO %lu set low\n", id);
- break;
- case 'd':
- GPDR(id) &= ~(GPIO_bit(id));
- break;
- case 'D':
- GPDR(id) |= GPIO_bit(id);
- break;
- case '0':
- set_afn(id, 0);
- break;
- case '1':
- set_afn(id, 1);
- break;
- case '2':
- set_afn(id, 2);
- break;
- default:
- printk(KERN_ERR "GPIOed: Unknown request\n");
- break;
- }
-}
-
-
-int procfile_write(struct file *file, const char *buffer, unsigned long count, void *data)
-{
- procfs_buffer_size = count;
- if (procfs_buffer_size > PROCFS_MAX_SIZE ) {
- procfs_buffer_size = PROCFS_MAX_SIZE;
- }
-
- /* write data to the buffer */
- if ( copy_from_user(procfs_buffer, buffer, procfs_buffer_size) ) {
- return -EFAULT;
- }
-
- handle_request();
-
- return procfs_buffer_size;
-}
-
-
-static int __init gpioed_init(void)
-{
- proc_intf = create_proc_entry(PROCFS_NAME, 0644, NULL);
- if (proc_intf == NULL) {
- remove_proc_entry(PROCFS_NAME, &proc_root);
- printk(KERN_ALERT "Error: Could not initialize /proc/%s\n", PROCFS_NAME);
- return -ENOMEM;
- }
-
- /*proc_intf->read_proc = procfile_read;*/
- proc_intf->write_proc = procfile_write;
- proc_intf->owner = THIS_MODULE;
- proc_intf->mode = S_IFREG | S_IRUGO;
- proc_intf->uid = 0;
- proc_intf->gid = 0;
- proc_intf->size = 37;
-
- debugfs_intf = debugfs_create_file(DEBUGFS_NAME, S_IRUGO, NULL, NULL, &debug_fops);
-
- printk(KERN_INFO "/proc/%s created\n", PROCFS_NAME);
-
- return 0;
-}
-
-static void __exit gpioed_exit(void)
-{
- debugfs_remove(debugfs_intf);
- remove_proc_entry(PROCFS_NAME, &proc_root);
- printk(KERN_INFO "/proc/%s removed\n", PROCFS_NAME);
-}
-
-
-/*** Some more stuff ***/
-module_init(gpioed_init);
-module_exit(gpioed_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Vladimir \"Farcaller\" Pouzanov <far...@gm...>");
-MODULE_DESCRIPTION("GPIO editor for PXA26x, second edition");
-
Deleted: linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/gpioed.c
===================================================================
--- linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/gpioed.c 2007-03-18 19:46:37 UTC (rev 921)
+++ linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/gpioed.c 2007-03-18 19:54:45 UTC (rev 922)
@@ -1,226 +0,0 @@
-/*** Basic includes ***/
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/proc_fs.h>
-
-#include <linux/interrupt.h>
-#include <asm/irq.h>
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-#include <asm/mach-types.h>
-#include <asm/hardware.h>
-#include <linux/sched.h>
-#include <linux/workqueue.h>
-#include <asm/arch/pxa-regs.h>
-#include <asm/arch/irqs.h>
-#include <asm/uaccess.h>
-
-/*** GPIO macros ***/
-#define GET_PALMT3_GPIO(gpio) \
- (GPLR(GPIO_NR_PALMT3_ ## gpio) & GPIO_bit(GPIO_NR_PALMT3_ ## gpio))
-
-#define SET_PALMT3_GPIO(gpio, setp) \
- do { \
- if (setp) \
- GPSR(GPIO_NR_PALMT3_ ## gpio) = GPIO_bit(GPIO_NR_PALMT3_ ## gpio); \
- else \
- GPCR(GPIO_NR_PALMT3_ ## gpio) = GPIO_bit(GPIO_NR_PALMT3_ ## gpio); \
- } while (0)
-
-#define SET_PALMT3_GPIO_N(gpio, setp) \
- do { \
- if (setp) \
- GPCR(GPIO_NR_PALMT3_ ## gpio) = GPIO_bit(GPIO_NR_PALMT3_ ## gpio); \
- else \
- GPSR(GPIO_NR_PALMT3_ ## gpio) = GPIO_bit(GPIO_NR_PALMT3_ ## gpio); \
- } while (0)
-
-#define GET_GPIO_REG(reg,gpio) (GP##reg(gpio) & GPIO_bit(gpio))
-#define GET_GPIO(gpio) GET_GPIO_REG(LR, gpio)
-
-/*** /proc interface ***/
-static struct proc_dir_entry *proc_intf;
-#define procfs_name "gpioed"
-#define PROCFS_MAX_SIZE 20
-
-static char procfs_buffer[PROCFS_MAX_SIZE];
-static unsigned long procfs_buffer_size = 0;
-
-int procfile_read(char *buffer, char **buffer_location, off_t offset, int buffer_length, int *eof, void *data)
-{
- int ret;
-
- if (offset > 0) {
- /* we have finished to read, return 0 */
- ret = 0;
- } else {
- /* fill the buffer, return the buffer size */
- ret = sprintf(buffer, "HelloWorld!\n");
- }
- return ret;
-}
-
-void handle_request(void);
-
-int procfile_write(struct file *file, const char *buffer, unsigned long count, void *data)
-{
- procfs_buffer_size = count;
- if (procfs_buffer_size > PROCFS_MAX_SIZE ) {
- procfs_buffer_size = PROCFS_MAX_SIZE;
- }
-
- /* write data to the buffer */
- if ( copy_from_user(procfs_buffer, buffer, procfs_buffer_size) ) {
- return -EFAULT;
- }
-
- handle_request();
-
- return procfs_buffer_size;
-}
-
-/*** IRQ (GPIO) handling ***/
-static struct workqueue_struct *my_workqueue;
-#define MY_WORK_QUEUE_NAME "GPIOed"
-
-static void handle_gpio(void* irq)
-{
- int gpn = (int)irq;
- printk(KERN_ERR "*** GPIO *** %d *** is *** %s ***\n", gpn, GET_GPIO(gpn) ? "high" : "low ");
-}
-
-irqreturn_t gpio_irq(int irq, void *dev_id, struct pt_regs *regs)
-{
- static int initialised = 0;
- static struct work_struct task;
-
- if (initialised == 0) {
- INIT_WORK(&task, handle_gpio, dev_id);
- initialised = 1;
- } else {
- PREPARE_WORK(&task, handle_gpio, dev_id);
- }
-
- queue_work(my_workqueue, &task);
-
- return IRQ_HANDLED;
-}
-
-/*** GPIO R/W ***/
-static int gpio_get(int id)
-{
- return GET_GPIO(id);
-}
-
-static void gpio_set(int id, int on)
-{
- do {
- if (on)
- GPSR(id) = GPIO_bit(id);
- else
- GPCR(id) = GPIO_bit(id);
- } while (0);
-}
-
-static int gpio_watch(int x)
-{
- int ret;
- ret = request_irq (IRQ_GPIO(x), gpio_irq, SA_SAMPLE_RANDOM, "test_handler", (void*)x);
- set_irq_type (IRQ_GPIO(x), IRQT_BOTHEDGE);
- if(ret!=0) {
- printk(KERN_ERR "GPIOed: failed to register for GPIO %d\n", x);
- return 1;
- } else {
- printk(KERN_ERR "GPIOed: Registered GPIO %d\n", x);
- return 0;
- }
-}
-
-/*** Request handler ***/
-void handle_request()
-{
- char *p = NULL;
- unsigned long base = 10;
- unsigned long id;
-
- if((procfs_buffer[0] == 'P') || (procfs_buffer[0] == 'V'))
- base = 16;
- id = simple_strtoul(procfs_buffer+2, &p, base);
- switch(procfs_buffer[0]) {
- case 'r':
- printk(KERN_ERR "GPIOed: GPIO %lu is %s\n", id, gpio_get(id)?"high":"low ");
- break;
- case 's':
- gpio_watch(id);
- break;
- case 'h':
- gpio_set(id, 1);
- printk(KERN_ERR "GPIOed: GPIO %lu set high\n", id);
- break;
- case 'l':
- gpio_set(id, 0);
- printk(KERN_ERR "GPIOed: GPIO %lu set low\n", id);
- break;
- case 'd':
- printk(KERN_ERR "GPIOed: GPIO %lu is %s\n", id, GET_GPIO_REG(DR,id)?"output":"input");
- break;
-
- case 'P':
- printk(KERN_ERR "GPIOed: P-V for 0x%x is 0x%x\n", id, (unsigned int)phys_to_virt(id));
- break;
- case 'V':
- printk(KERN_ERR "GPIOed: V-P for 0x%x is 0x%x\n", id, (unsigned int)virt_to_phys(id));
- break;
- case 'D':
- base = *((unsigned int*)id);
- printk(KERN_ERR "GPIOed: 0x%x = 0x%x\n", id, base);
- break;
- default:
- printk(KERN_ERR "GPIOed: Unknown request\n");
- break;
- }
-}
-
-/*** init&exit ***/
-static int __init gpioed_init(void)
-{
- my_workqueue = create_workqueue(MY_WORK_QUEUE_NAME);
-
- proc_intf = create_proc_entry(procfs_name, 0644, NULL);
- if (proc_intf == NULL) {
- remove_proc_entry(procfs_name, &proc_root);
- printk(KERN_ALERT "Error: Could not initialize /proc/%s\n",
- procfs_name);
- return -ENOMEM;
- }
-
- proc_intf->read_proc = procfile_read;
- proc_intf->write_proc = procfile_write;
- proc_intf->owner = THIS_MODULE;
- proc_intf->mode = S_IFREG | S_IRUGO;
- proc_intf->uid = 0;
- proc_intf->gid = 0;
- proc_intf->size = 37;
-
- printk(KERN_INFO "/proc/%s created\n", procfs_name);
-
- return 0;
-}
-
-static void __exit gpioed_exit(void)
-{
- destroy_workqueue(my_workqueue);
- remove_proc_entry(procfs_name, &proc_root);
- printk(KERN_INFO "/proc/%s removed\n", procfs_name);
-}
-
-
-/*** Some more stuff ***/
-module_init(gpioed_init);
-module_exit(gpioed_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Vladimir \"Farcaller\" Pouzanov <far...@gm...>");
-MODULE_DESCRIPTION("GPIO editor for PXA26x");
-
Deleted: linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/palmz72_ac97.c
===================================================================
--- linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/palmz72_ac97.c 2007-03-18 19:46:37 UTC (rev 921)
+++ linux4palm/linux/trunk/arch/arm/mach-pxa/palmz72/palmz72_ac97.c 2007-03-18 19:54:45 UTC (rev 922)
@@ -1,594 +0,0 @@
-/************************************************************************
- * linux/arch/arm/mach-pxa/palmz72/palmz72_ac97.c *
- * *
- * Touchscreen/battery driver for Palm Zire 72 WM9712 AC97 codec *
- * Author: Jan Herman <2h...@se...> *
- * Based on palmld_ac97.c code from Alex Osborne *
- * *
- ************************************************************************/
-
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/input.h>
-#include <linux/device.h>
-#include <linux/workqueue.h>
-#include <linux/battery.h>
-
-#include <asm/apm.h>
-#include <asm/delay.h>
-#include <asm/mach-types.h>
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-#include <asm/arch/hardware.h>
-#include <asm/arch/pxa-regs.h>
-#include <asm/arch/irqs.h>
-
-#include <sound/driver.h>
-#include <sound/core.h>
-#include <sound/pcm.h>
-#include <sound/initval.h>
-#include <sound/ac97_codec.h>
-#include <asm/arch/palmz72-ac97.h>
-#include <asm/arch/palmz72-gpio.h>
-#include <asm/arch/palmz72-init.h>
-
-
-#define X_AXIS_MAX 3900
-#define X_AXIS_MIN 350
-#define Y_AXIS_MAX 3750
-#define Y_AXIS_MIN 320
-#define PRESSURE_MIN 0
-#define PRESSURE_MAX 300
-
-#define DIG2_INIT 0x0001 /* initial value for digitiser2 reg */
-
-#define DEFAULT_PRESSURE_TRESHOLD 47200 /* default pressure treshold for pen up/down */
-#define DEFAULT_X_AXIS_FUZZ 5 /* default x axis noise treshold */
-#define DEFAULT_Y_AXIS_FUZZ 40 /* default y axis noise treshold */
-#define PRESSURE_FUZZ 4 /* default pressure noise treshold */
-
-#define palmz72_ac97_WORK_QUEUE_NAME "palmz72_ac97_workqueue"
-
-
-/*********************
- * Module parameters *
- *********************/
-
-static int ptrsh = DEFAULT_PRESSURE_TRESHOLD;
-module_param(ptrsh, int, 0);
-MODULE_PARM_DESC(ptrsh, "pressure treshold for pen up/down");
-
-static int dbglvl = 0; // debug disabled
-module_param(dbglvl, int, 0);
-MODULE_PARM_DESC(dbglvl, "debug level (0 is disabled)");
-
-static int xdjtrsh = DEFAULT_X_AXIS_FUZZ;
-module_param(xdjtrsh, int, 0);
-MODULE_PARM_DESC(xdjtrsh, "treshold for x axis jitter");
-
-static int ydjtrsh = DEFAULT_Y_AXIS_FUZZ;
-module_param(ydjtrsh, int, 0);
-MODULE_PARM_DESC(ydjtrsh, "treshold for y axis jitter");
-
-
-static DECLARE_MUTEX_LOCKED(queue_sem);
-static DECLARE_MUTEX(digitiser_sem);
-static DECLARE_MUTEX(battery_update_mutex);
-
-static struct workqueue_struct *palmz72_ac97_workqueue;
-static struct work_struct palmz72_ac97_irq_task;
-
-struct input_dev *palmz72_ac97_input;
-struct device *palmz72_ac97_dev;
-
-static ac97_t *ac97;
-
-static int battery_registered = 0;
-static unsigned long last_battery_update = 0;
-static int current_voltage;
-static int previous_voltage;
-static u16 d2base;
-
-/**************
- * ac97 codec *
- **************/
-
-void wm97xx_gpio_func(int gpio, int func)
-{
- int GEn;
- GEn = ac97->bus->ops->read(ac97, 0x56);
- if(func)
- GEn |= gpio;
- else
- GEn &= ~gpio;
- ac97->bus->ops->write(ac97, 0x56, GEn);
-}
-
-
-void wm97xx_gpio_mode(int gpio, int config, int polarity, int sticky, int wakeup)
-{
- int GCn, GPn, GSn, GWn;
- GCn = ac97->bus->ops->read(ac97, 0x4c);
- GPn = ac97->bus->ops->read(ac97, 0x4e);
- GSn = ac97->bus->ops->read(ac97, 0x50);
- GWn = ac97->bus->ops->read(ac97, 0x52);
-
- if(config)
- GCn |= gpio;
- else
- GCn &= ~gpio;
-
- if(polarity)
- GPn |= gpio;
- else
- GPn &= ~gpio;
-
- if(sticky)
- GSn |= gpio;
- else
- GSn &= ~gpio;
-
- if(wakeup)
- GWn |= gpio;
- else
- GWn &= ~gpio;
-
- ac97->bus->ops->write(ac97, 0x4c, GCn);
- ac97->bus->ops->write(ac97, 0x4e, GPn);
- ac97->bus->ops->write(ac97, 0x50, GSn);
- ac97->bus->ops->write(ac97, 0x52, GWn);
-}
-
-
-static void wm97xx_set_digitiser_power(int value)
-{
- ac97->bus->ops->write(ac97, AC97_WM97XX_DIGITISER2, d2base | value);
-}
-
-static int palmz72_ac97_take_reading(int adcsel)
-{
-
- int timeout = 15;
- u16 r76 = 0;
- u16 r7a;
-
- r76 |= adcsel; // set ADCSEL (ADC source)
- r76 |= WM97XX_DELAY(3); // set settling time delay
- r76 &= ~(1<<11); // COO = 0 (single measurement)
- r76 &= ~(1<<10); // CTC = 0 (polling mode)
- r76 |= (1<<15); // initiate measurement (POLL)
-
- ac97->bus->ops->write(ac97, 0x76, r76);
-
- // wait settling time
- udelay ((3 * AC97_LINK_FRAME) + 167);
-
- // wait for POLL to go low
- while((ac97->bus->ops->read(ac97, 0x76) & 0x8000) && timeout){
- udelay(AC97_LINK_FRAME);
- timeout--;
- }
-
- if (timeout == 0){
- printk("palmz72_ac97: discarding reading due to POLL wait timout on 0x76\n");
- return 0;
- }
-
- r7a = ac97->bus->ops->read(ac97, 0x7a);
-
- if ((r7a & WM97XX_ADCSEL_MASK) != adcsel){
- printk("palmz72_ac97: discarding reading -> wrong ADC source\n");
- return 0;
- }
-
- return (int) r7a;
-
-}
-
-
-static void palmz72_ac97_pendown(void)
-{
- int xread, yread, pressure;
- int valid_coords=0, btn_pressed = 0;
-
- /* take readings until the pen goes up */
- do {
- /* take readings */
- xread = palmz72_ac97_take_reading(WM97XX_ADCSEL_X);
- yread = palmz72_ac97_take_reading(WM97XX_ADCSEL_Y);
- pressure = palmz72_ac97_take_reading(WM97XX_ADCSEL_PRES);
-
- // printk("Pressure is %d:\n", pressure);
-
- valid_coords = (xread & 0xfff) && (yread & 0xfff) && (pressure & 0xfff);
-
- if(valid_coords && (pressure < ptrsh)) {
- btn_pressed = 1;
- input_report_key(palmz72_ac97_input, BTN_TOUCH, 1);
- input_report_abs(palmz72_ac97_input, ABS_X, xread & 0xfff);
- input_report_abs(palmz72_ac97_input, ABS_Y, yread & 0xfff);
- input_report_abs(palmz72_ac97_input, ABS_PRESSURE, pressure & 0xfff);
- input_sync(palmz72_ac97_input);
-
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(HZ/100);
- set_current_state(TASK_RUNNING);
- }
- } while( valid_coords );
-
-
- if (btn_pressed) {
- input_report_key(palmz72_ac97_input, BTN_TOUCH, 0);
- input_report_abs(palmz72_ac97_input, ABS_X, 0);
- input_report_abs(palmz72_ac97_input, ABS_Y, 0);
- input_report_abs(palmz72_ac97_input, ABS_PRESSURE, 0);
- input_sync(palmz72_ac97_input);
- }
-
-}
-
-
-static void palmz72_ac97_irq_work(void *data)
-{
- u16 levels;
- u16 polarity;
-
- levels = ac97->bus->ops->read(ac97, 0x54);
- polarity = ac97->bus->ops->read(ac97, 0x4e);
-
- if(polarity & levels & WM97XX_GPIO_13) {
- /* power up digitiser: */
- down(&digitiser_sem);
- wm97xx_set_digitiser_power(WM97XX_PRP_DET_DIG);
-
- palmz72_ac97_pendown();
-
- /* power down digitiser to conserve power */
- wm97xx_set_digitiser_power(WM97XX_PRP_DET);
- ac97->bus->ops->write(ac97, 0x4e, polarity & ~WM97XX_GPIO_13);
- up(&digitiser_sem);
- }
- else {
- ac97->bus->ops->write(ac97, 0x4e, polarity | WM97XX_GPIO_13);
- }
-
- ac97->bus->ops->write(ac97, 0x54, levels & ~WM97XX_GPIO_13);
-
- udelay(1);
- up(&queue_sem);
- enable_irq(IRQ_GPIO_PALMZ72_WM9712_IRQ);
-}
-
-
-static irqreturn_t palmz72_ac97_irq_handler(int irq, void *dev_id, struct pt_regs *regs)
-{
- if (down_trylock(&queue_sem) == 0){
- disable_irq(IRQ_GPIO_PALMZ72_WM9712_IRQ);
- queue_work(palmz72_ac97_workqueue, &palmz72_ac97_irq_task);
- }
-
- return IRQ_HANDLED;
-}
-
-static int suspended = 0;
-
-static int palmz72_ac97_suspend(struct device *dev, pm_message_t state)
-{
- suspended = 1;
- return 0;
-}
-
-
-static int palmz72_ac97_resume(struct device* dev)
-{
- u16 d2 = DIG2_INIT;
-
- ac97 = to_ac97_t(dev);
-
- /* reset levels */
- ac97->bus->ops->write(ac97, 0x54, 0);
-
- /* disable digitiser to save power, enable pen-down detect */
- d2 |= WM97XX_PRP_DET;
- d2base = d2;
- ac97->bus->ops->write(ac97, AC97_WM97XX_DIGITISER2, d2base);
-
- /* enable interrupts on codec's gpio 2 (connected to cpu gpio 27) */
- wm97xx_gpio_mode(WM97XX_GPIO_2, WM97XX_GPIO_OUT, WM97XX_GPIO_POL_HIGH,
- WM97XX_GPIO_NOTSTICKY, WM97XX_GPIO_NOWAKE);
- wm97xx_gpio_func(WM97XX_GPIO_2, 0);
-
- /* enable pen detect interrupt */
- wm97xx_gpio_mode(WM97XX_GPIO_13, WM97XX_GPIO_OUT, WM97XX_GPIO_POL_HIGH,
- WM97XX_GPIO_STICKY, WM97XX_GPIO_WAKE);
-
- /* setup work queue */
- palmz72_ac97_workqueue = create_workqueue(palmz72_ac97_WORK_QUEUE_NAME);
- INIT_WORK(&palmz72_ac97_irq_task, palmz72_ac97_irq_work, dev);
-
- up(&queue_sem);
- return 0;
-}
-
-
-
-
-/***********
- * Battery *
- ***********/
-
-
-void palmz72_battery_read_adc(int force)
-{
- u16 vread;
-
- if(!force && ((last_battery_update + 10 *HZ) > jiffies))
- return;
-
- if(down_trylock(&battery_update_mutex))
- return;
-
- down(&digitiser_sem);
- wm97xx_set_digitiser_power(WM97XX_PRP_DET_DIG);
- vread = palmz72_ac97_take_reading(WM97XX_ADCSEL_BMON);
- wm97xx_set_digitiser_power(WM97XX_PRP_DET);
- up(&digitiser_sem);
-
- previous_voltage = current_voltage;
- current_voltage = vread & 0xfff;
- last_battery_update = jiffies;
-
- up(&battery_update_mutex);
-}
-
-
-int palmz72_battery_min_voltage(struct battery *b)
-{
- return PALMZ72_BAT_MIN_VOLTAGE;
-}
-
-
-int palmz72_battery_max_voltage(struct battery *b)
-{
- return PALMZ72_BAT_MAX_VOLTAGE; /* mV */
-}
-
-/*
- This formula is based on battery life of my battery 1100mAh. Original battery in Zire72 is Li-On 920mAh
- V_batt = ADCSEL_BMON * 1,889 + 767,8 [mV]
-*/
-
-int palmz72_battery_get_voltage(struct battery *b)
-{
- if (battery_registered){
- palmz72_battery_read_adc(0);
- //printk("Battery [mV]: %d\n", current_voltage * 1889/1000 + 7678/10 );
- return current_voltage * 1889/1000 + 7678/10;
- }
- else{
- printk("palmz72_battery: cannot get voltage -> battery driver unregistered\n");
- return 0;
- }
-}
-
-
-int palmz72_battery_get_status(struct battery *b)
-{
- int ac_connected = GET_GPIO(GPIO_NR_PALMZ72_POWER_DETECT);
- int usb_connected = !GET_GPIO(GPIO_NR_PALMZ72_USB_DETECT);
-
- if (current_voltage <= 0)
- return BATTERY_STATUS_UNKNOWN;
-
- if (ac_connected || usb_connected){
- if ( ( current_voltage > previous_voltage ) || (current_voltage <= PALMZ72_BAT_MAX_VOLTAGE) )
- return BATTERY_STATUS_CHARGING;
- return BATTERY_STATUS_NOT_CHARGING;
- }
- else
- return BATTERY_STATUS_DISCHARGING;
-}
-
-
-struct battery palmz72_battery = {
- .name = "palmz72_battery",
- .id = "battery0",
- .get_min_voltage = palmz72_battery_min_voltage,
- .get_max_voltage = palmz72_battery_max_voltage,
- .get_voltage = palmz72_battery_get_voltage,
- .get_status = palmz72_battery_get_status,
-};
-
-
-static int __init palmz72_ac97_probe(struct device *dev)
-{
- int err;
- u16 d2 = DIG2_INIT;
-
- if(!machine_is_palmz72())
- return -ENODEV;
-
- ac97 = to_ac97_t(dev);
-
- set_irq_type(IRQ_GPIO_PALMZ72_WM9712_IRQ, IRQT_RISING);
-
- err = request_irq(IRQ_GPIO_PALMZ72_WM9712_IRQ, palmz72_ac97_irq_handler,
- SA_INTERRUPT, "WM9712 pendown IRQ", dev);
-
- if(err) {
- printk(KERN_ERR "palmz72_ac97_probe: cannot request pen down IRQ\n");
- return -1;
- }
-
- /* reset levels */
- ac97->bus->ops->write(ac97, 0x54, 0);
-
- /* disable digitiser to save power, enable pen-down detect */
- d2 |= WM97XX_PRP_DET;
- d2base = d2;
- ac97->bus->ops->write(ac97, AC97_WM97XX_DIGITISER2, d2base);
-
- /* enable interrupts on codec's gpio 2 (connected to cpu gpio 27) */
- wm97xx_gpio_mode(WM97XX_GPIO_2, WM97XX_GPIO_OUT, WM97XX_GPIO_POL_HIGH,
- WM97XX_GPIO_NOTSTICKY, WM97XX_GPIO_NOWAKE);
- wm97xx_gpio_func(WM97XX_GPIO_2, 0);
-
- /* enable pen detect interrupt */
- wm97xx_gpio_mode(WM97XX_GPIO_13, WM97XX_GPIO_OUT, WM97XX_GPIO_POL_HIGH,
- WM97XX_GPIO_STICKY, WM97XX_GPIO_WAKE);
-
- /* turn off irq gpio inverting */
- ac97->bus->ops->write(ac97, 0x58, ac97->bus->ops->read(ac97, 0x58)&~1);
-
- /* turn on the digitiser and pen down detector */
- ac97->bus->ops->write(ac97, AC97_WM97XX_DIGITISER2, d2base | WM97XX_PRP_DETW);
-
- /* setup the input device */
- palmz72_ac97_input = input_allocate_device();
- if (palmz72_ac97_input == NULL){
- printk ("palmz72_ac97_probe: cannot allocate input device\n");
- return -ENOMEM;
- }
-
- palmz72_ac97_input->evbit[0] = BIT(EV_KEY) | BIT(EV_ABS);
-
- palmz72_ac97_input->keybit[LONG(BTN_TOUCH)] = BIT(BTN_TOUCH);
- input_set_abs_params(palmz72_ac97_input, ABS_X, X_AXIS_MIN, X_AXIS_MAX, xdjtrsh, 0);
- input_set_abs_params(palmz72_ac97_input, ABS_Y, Y_AXIS_MIN, Y_AXIS_MAX, ydjtrsh, 0);
- input_set_abs_params(palmz72_ac97_input, ABS_PRESSURE, PRESSURE_MIN, PRESSURE_MAX, PRESSURE_FUZZ, 0);
-
- palmz72_ac97_input->name = "palmz72 touchscreen";
- palmz72_ac97_input->dev = dev;
- palmz72_ac97_input->id.bustype = BUS_HOST;
- input_register_device(palmz72_ac97_input);
-
- /* register battery */
-
- if(battery_class_register(&palmz72_battery)) {
- printk(KERN_ERR "palmz72_ac97_probe: could not register battery class\n");
- }
- else{
- battery_registered = 1;
- }
-
- /* setup work queue */
- palmz72_ac97_workqueue = create_workqueue(palmz72_ac97_WORK_QUEUE_NAME);
- INIT_WORK(&palmz72_ac97_irq_task, palmz72_ac97_irq_work, dev);
-
- up(&queue_sem);
- return 0;
-}
-
-static int palmz72_ac_is_connected (void){
- /* when charger is plugged in and USB is not connected, then status is ONLINE */
- int ret = (!(GET_GPIO(GPIO_NR_PALMZ72_USB_PULLUP)) && !(GET_GPIO(GPIO_NR_PALMZ72_USB_DETECT)));;
- if (ret)
- ret = 1;
- else
- ret = 0;
-
- return ret;
-}
-
-/*******
- * APM *
- *******/
-
-static void palmz72_apm_get_power_status(struct apm_power_info *info)
-{
- int min, max, curr, percent;
-
- curr = palmz72_battery_get_voltage(NULL);
- min = palmz72_battery_min_voltage(NULL);
- max = palmz72_battery_max_voltage(NULL);
-
- curr = curr - min;
- if (curr < 0) curr = 0;
- max = max - min;
-
- percent = curr*100/max;
-
- info->battery_life = percent;
-
- info->ac_line_status = palmz72_ac_is_connected() ? APM_AC_ONLINE : APM_AC_OFFLINE;
-
- if (info->ac_line_status) {
- info->battery_status = APM_BATTERY_STATUS_CHARGING;
- } else {
- if (percent > 50)
- info->battery_status = APM_BATTERY_STATUS_HIGH;
- else if (percent < 5)
- info->battery_status = APM_BATTERY_STATUS_CRITICAL;
- else
- info->battery_status = APM_BATTERY_STATUS_LOW;
- }
-
- info->time = percent * PALMZ72_MAX_LIFE_MINS/100;
- info->units = APM_UNITS_MINS;
-}
-
-typedef void (*apm_get_power_status_t)(struct apm_power_info*);
-
-int set_apm_get_power_status(apm_get_power_status_t t)
-{
- apm_get_power_status = t;
-
- return 0;
-}
-
-
-/* end of APM implementing */
-
-static int palmz72_ac97_remove (struct device *dev)
-{
- battery_class_unregister(&palmz72_battery);
- ac97 = NULL;
- input_unregister_device(palmz72_ac97_input);
- return 0;
-}
-
-
-static struct device_driver palmz72_ac97_driver = {
- .name = "palmz72_ac97 (WM9712)",
- .bus = &ac97_bus_type,
- .owner = THIS_MODULE,
- .probe = palmz72_ac97_probe,
- .remove = palmz72_ac97_remove,
-
-#ifdef CONFIG_PM
- .suspend = palmz72_ac97_suspend,
- .resume = palmz72_ac97_resume,
-#endif
-};
-
-
-static int __init palmz72_ac97_init(void)
-{
- driver_register(&palmz72_ac97_driver);
-
-/* register battery to APM layer */
-
-#ifdef CONFIG_PM
- apm_get_power_status = palmz72_apm_get_power_status;
- return 0;
-#endif
-
-}
-
-
-static void __exit palmz72_ac97_exit(void)
-{
- driver_unregister(&palmz72_ac97_driver);
-}
-
-
-module_init(palmz72_ac97_init);
-module_exit(palmz72_ac97_exit);
-
-MODULE_AUTHOR ("Jan Herman <2h...@se...>");
-MODULE_DESCRIPTION ("WM9712 AC97 codec support for PalmOne Zire 72");
-MODULE_LICENSE ("GPL");
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