summaryrefslogtreecommitdiff
path: root/ANDROID_3.4.5/drivers/input/keyboard/wmt_kpad.c
diff options
context:
space:
mode:
Diffstat (limited to 'ANDROID_3.4.5/drivers/input/keyboard/wmt_kpad.c')
-rwxr-xr-xANDROID_3.4.5/drivers/input/keyboard/wmt_kpad.c466
1 files changed, 0 insertions, 466 deletions
diff --git a/ANDROID_3.4.5/drivers/input/keyboard/wmt_kpad.c b/ANDROID_3.4.5/drivers/input/keyboard/wmt_kpad.c
deleted file mode 100755
index cf50cf1c..00000000
--- a/ANDROID_3.4.5/drivers/input/keyboard/wmt_kpad.c
+++ /dev/null
@@ -1,466 +0,0 @@
-/*++
-linux/drivers/input/keyboard/wmt_kpad.c
-
-Some descriptions of such software. Copyright (c) 2008 WonderMedia Technologies, Inc.
-
-This program is free software: you can redistribute it and/or modify it under the
-terms of the GNU General Public License as published by the Free Software Foundation,
-either version 2 of the License, or (at your option) any later version.
-
-This program is distributed in the hope that it will be useful, but WITHOUT
-ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A
-PARTICULAR PURPOSE. See the GNU General Public License for more details.
-You should have received a copy of the GNU General Public License along with
-this program. If not, see <http://www.gnu.org/licenses/>.
-
-WonderMedia Technologies, Inc.
-10F, 529, Chung-Cheng Road, Hsin-Tien, Taipei 231, R.O.C.
---*/
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/types.h>
-#include <linux/input.h>
-#include <linux/kernel.h>
-#include <linux/delay.h>
-#include <linux/device.h>
-#include <linux/platform_device.h>
-#include <linux/cpufreq.h>
-#include <linux/delay.h>
-#include <asm/io.h>
-#include <asm/irq.h>
-#include <asm/errno.h>
-#include <asm/mach-types.h>
-#include <mach/hardware.h>
-#include <linux/suspend.h>
-#include <linux/gpio.h>
-#include <mach/wmt_iomux.h>
-
-
-/* Debug macros */
-#if 0
-#define DPRINTK(fmt, args...) printk(KERN_ALERT "[%s]: " fmt, __func__ , ## args)
-#else
-#define DPRINTK(fmt, args...)
-#endif
-
-//#define USE_HOME
-#define wmt_kpad_timeout (HZ/50)
-
-#define WMT_KPAD_FUNCTION_NUM 7
-
-
-static unsigned int wmt_kpad_codes[WMT_KPAD_FUNCTION_NUM] = {
- [0] = KEY_VOLUMEUP,
- [1] = KEY_VOLUMEDOWN,
- [2] = KEY_BACK,
- [3] = KEY_HOME,
- [4] = KEY_MENU,
- [5] = KEY_CAMERA,
- [6] = KEY_PLAYPAUSE,
-};
-
-
-enum {
- KEY_ST_up,
- KEY_ST_down,
- KEY_ST_debounce,
-};
-
-static struct input_dev *kpad_dev;
-
-int key_num = 0;
-
-struct wmt_key{
- int gpio;
- int keycode;
-
- int status;
- int debounce;
- struct timer_list timer;
-} ;
-struct wmt_key gpio_key[5];
-
-#ifdef CONFIG_CPU_FREQ
-/*
- * Well, the debounce time is not very critical while zac2_clk
- * rescaling, but we still do it.
- */
-
-/* kpad_clock_notifier()
- *
- * When changing the processor core clock frequency, it is necessary
- * to adjust the KPMIR register.
- *
- * Returns: 0 on success, -1 on error
- */
-static int kpad_clock_notifier(struct notifier_block *nb, unsigned long event,
- void *data)
-{
- return 0;
-}
-
-/*
- * Notify callback while issusing zac2_clk rescale.
- */
-static struct notifier_block kpad_clock_nblock = {
- .notifier_call = kpad_clock_notifier,
- .priority = 1
-};
-#endif
-
-static int wmt_kpad_gpio_requst(void)
-{
- int i,j,ret;
- DPRINTK("Start\n");
- for(i=0; i< key_num; i++){
- ret = gpio_request(gpio_key[i].gpio,"kpad");
- if(ret)
- goto exit;
- }
-
- DPRINTK("End\n");
- return ret;
-exit:
- for(j=0; j < i; j++)
- gpio_free(gpio_key[j].gpio);
- return ret;
-}
-
-static int wmt_kpad_gpio_init(void)
-{
- int i;
- for(i=0; i<key_num; i++){
- gpio_direction_input(gpio_key[i].gpio);
- wmt_gpio_setpull(gpio_key[i].gpio,WMT_GPIO_PULL_UP);
- }
-
- return 0;
-}
-
-
-static int wmt_kpad_gpio_free(void)
-{
- int i;
- for(i=0; i<key_num; i++){
- gpio_free(gpio_key[i].gpio);
- }
-
- return 0;
-}
-
-static void wmt_kpad_poll(unsigned long fcontext)
-{
- struct wmt_key *gpk = (struct wmt_key *)fcontext;
-
- //DPRINTK("Start\n");
- if (__gpio_get_value(gpk->gpio) == 0) { /*Active Low*/
- if(gpk->status == KEY_ST_up){
- gpk->debounce = 5;
- gpk->status = KEY_ST_debounce;
- DPRINTK("vd down to debounce\n");
- }
-
- if(gpk->status == KEY_ST_debounce){
- if(--gpk->debounce == 0){
- gpk->status = KEY_ST_down;
- /* report volume down key down */
- input_report_key(kpad_dev, gpk->keycode, 1);
- input_sync(kpad_dev);
- DPRINTK("WMT Volume up keep press\n");
- }
- }
- //DPRINTK("vd level is low,status=%d\n",vu_status);
-
- }
- else {/* Level High */
- if(gpk->status == KEY_ST_down){
- gpk->status = KEY_ST_up;
- /*Volume down release*/
- input_report_key(kpad_dev, gpk->keycode, 0); /*row4 key is release*/
- input_sync(kpad_dev);
- DPRINTK("WMT_Volume down release key = %d \n", gpk->keycode);
- }
-
- if(gpk->status == KEY_ST_debounce){
- if(--gpk->debounce == 0){
- gpk->status = KEY_ST_up;
- }
- }
-
- //DPRINTK("vd level is high,status=%d\n",vu_status);
-
- }
-
- mod_timer(&gpk->timer, jiffies + wmt_kpad_timeout);
- //DPRINTK("End\n");
-
- return;
-}
-
-static int init_key_timer(void)
-{
- int i;
- for(i=0; i<key_num;i++){
- init_timer(&gpio_key[i].timer);
- gpio_key[i].timer.function = wmt_kpad_poll;
- gpio_key[i].timer.data = (unsigned long)&gpio_key[i];
- }
-
- return 0;
-}
-
-static int start_key_timer(void)
-{ int i;
- for(i=0;i<key_num;i++){
- gpio_key[i].status = KEY_ST_up;
- mod_timer(&gpio_key[i].timer, jiffies + HZ/10);
- }
-
- return 0;
-}
-
-static int del_key_timer(void)
-{ int i;
- for(i=0;i<key_num;i++){
- gpio_key[i].status = KEY_ST_up;
- del_timer_sync(&gpio_key[i].timer);
- }
-
- return 0;
-}
-static int kpad_open(struct input_dev *dev)
-{
- int ret = 0;
- DPRINTK("Start\n");
-
- /*init timer*/
- init_key_timer();
- start_key_timer();
- wmt_kpad_gpio_init();
- DPRINTK("End2\n");
-
- return ret;
-}
-
-static void kpad_close(struct input_dev *dev)
-{
- DPRINTK("Start\n");
-
- del_key_timer();
- /*
- * Unregister input device driver
- */
- input_unregister_device(dev);
-
- DPRINTK("End2\n");
-}
-
-static int wmt_kpad_probe(struct platform_device *pdev)
-{
- int ret = 0;
- unsigned int i;
- DPRINTK("Start\n");
- kpad_dev = input_allocate_device();
- if (kpad_dev == NULL) {
- DPRINTK("End 1\n");
- return -1;
- }
- /*
- * Simply check resources parameters.
- */
- DPRINTK("pdev->num_resources = 0x%x\n",pdev->num_resources);
- if (pdev->num_resources < 0 || pdev->num_resources > 2) {
- ret = -ENODEV;
- goto kpad_probe_out;
- }
-
- /* Register an input event device. */
- kpad_dev->name = "keypad",
- kpad_dev->phys = "keypad",
-
- /*
- * Let kpad to implement key repeat.
- */
-
- set_bit(EV_KEY, kpad_dev->evbit);
-
- for (i = 0; i < WMT_KPAD_FUNCTION_NUM; i++)
- set_bit(wmt_kpad_codes[i], kpad_dev->keybit);
-
- kpad_dev->keycode = wmt_kpad_codes;
- kpad_dev->keycodesize = sizeof(unsigned int);
- kpad_dev->keycodemax = WMT_KPAD_FUNCTION_NUM;
-
- /*
- * For better view of /proc/bus/input/devices
- */
- kpad_dev->id.bustype = 0;
- kpad_dev->id.vendor = 0;
- kpad_dev->id.product = 0;
- kpad_dev->id.version = 0;
-
- input_register_device(kpad_dev);
- kpad_open(kpad_dev);
- DPRINTK("End2\n");
-kpad_probe_out:
-
-#ifndef CONFIG_SKIP_DRIVER_MSG
- printk(KERN_INFO "WMT keypad driver initialized: %s\n",
- (ret == 0) ? "ok" : "failed");
-#endif
- DPRINTK("End3\n");
- return ret;
-}
-
-static int wmt_kpad_remove(struct platform_device *pdev)
-{
- int ret;
- DPRINTK("Start\n");
- kpad_close(kpad_dev);
- wmt_kpad_gpio_free();
- DPRINTK("End\n");
-#ifdef CONFIG_CPU_FREQ
- ret = cpufreq_unregister_notifier(&kpad_clock_nblock, \
- CPUFREQ_TRANSITION_NOTIFIER);
-
- if (ret) {
- printk(KERN_ERR "Unable to unregister CPU frequency " \
- "change notifier (%d)\n", ret);
- }
-#endif
- return 0;
-}
-
-static int wmt_kpad_suspend(struct platform_device *pdev, pm_message_t state)
-{
- DPRINTK("Start\n");
-
- switch (state.event) {
- case PM_EVENT_SUSPEND:
- del_key_timer();
- break;
- case PM_EVENT_FREEZE:
- case PM_EVENT_PRETHAW:
-
- default:
- break;
- }
-
- DPRINTK("End2\n");
- return 0;
-}
-
-static int wmt_kpad_resume(struct platform_device *pdev)
-{
- DPRINTK("Start\n");
- wmt_kpad_gpio_init();
- start_key_timer();
- DPRINTK("End\n");
- return 0;
-}
-
-static void wmt_kpad_release(struct device *dev)
-{
- return ;
-}
-
-static struct platform_driver wmt_kpad_driver = {
- .driver.name = "wmt-kpad",
- .probe = &wmt_kpad_probe,
- .remove = &wmt_kpad_remove,
- .suspend = &wmt_kpad_suspend,
- .resume = &wmt_kpad_resume
-};
-
-static struct resource wmt_kpad_resources[] = {
- [0] = {
- .start = IRQ_GPIO,
- .end = IRQ_GPIO,
- .flags = IORESOURCE_IRQ,
- },
-};
-
-static struct platform_device wmt_kpad_device = {
- .name = "wmt-kpad",
- .id = 0,
- .num_resources = ARRAY_SIZE(wmt_kpad_resources),
- .resource = wmt_kpad_resources,
- .dev = {
- .release = wmt_kpad_release,
- }
-};
-
-extern int wmt_getsyspara(char *varname, unsigned char *varval, int *varlen);
-
-static int __init kpad_init(void)
-{
- int i,ret;
- int retval;
- unsigned char buf[80];
- int varlen = 80;
- char *varname = "wmt.io.kpad";
- char *p=NULL;
- int gpio,code;
-
- DPRINTK(KERN_ALERT "Start\n");
- retval = wmt_getsyspara(varname, buf, &varlen);
- if (retval == 0) {
- sscanf(buf,"%d:", &key_num);
- if (key_num <= 0)
- return -ENODEV;
- p = buf;
- for(i=0; i<key_num && p!=NULL; i++){
- p = strchr(p,':');
- p++;
- sscanf(p,"[%d,%d]",&gpio,&code);
- gpio_key[i].gpio = gpio;
- gpio_key[i].keycode = code;
- printk("gpio=%d,code=%d\n",gpio,gpio_key[i].keycode);
- }
-
- } else {
- printk("##Warning: \"wmt.io.kpad\" not find\n");
- return -EIO;
- }
- ret = wmt_kpad_gpio_requst();
- if(ret){
- printk("##Warning:Request gpio failed.\n");
- return ret;
- }
-
-#ifdef CONFIG_CPU_FREQ
- ret = cpufreq_register_notifier(&kpad_clock_nblock, \
- CPUFREQ_TRANSITION_NOTIFIER);
-
- if (ret) {
- printk(KERN_ERR "Unable to register CPU frequency " \
- "change notifier (%d)\n", ret);
- }
-#endif
- ret = platform_device_register(&wmt_kpad_device);
- if (ret != 0) {
- DPRINTK("End1 ret = %x\n",ret);
- return -ENODEV;
- }
-
- ret = platform_driver_register(&wmt_kpad_driver);
- DPRINTK("End2 ret = %x\n",ret);
- return ret;
-}
-
-static void __exit kpad_exit(void)
-{
- DPRINTK("Start\n");
- platform_driver_unregister(&wmt_kpad_driver);
- platform_device_unregister(&wmt_kpad_device);
- DPRINTK("End\n");
-}
-
-module_init(kpad_init);
-module_exit(kpad_exit);
-
-MODULE_AUTHOR("WonderMedia Technologies, Inc.");
-MODULE_DESCRIPTION("WMT [generic keypad] driver");
-MODULE_LICENSE("GPL");
generated by cgit (git 2.34.1) at 2025-01-08 21:13:22 +0000