From: Michael Gernoth Date: Tue, 6 Sep 2011 22:35:07 +0000 (+0200) Subject: add access to struct gpio_kp X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/ms2-fixes/commitdiff_plain/e2cecc6a4e8bfe035f78fd910b83199a72e1e38e add access to struct gpio_kp --- diff --git a/debounce.c b/debounce.c index 399e97b..9b8af30 100644 --- a/debounce.c +++ b/debounce.c @@ -5,6 +5,8 @@ #include #include #include +#include +#include #define PREFIX "debounce: " @@ -17,6 +19,28 @@ static struct gpio_event_matrix_info *gpio_evmi = NULL; static int hw_debounce = 0; static int hw_debounce_time = 0; +struct gpio_event { + struct gpio_event_input_devs *input_devs; + const struct gpio_event_platform_data *info; + struct early_suspend early_suspend; + void *state[0]; +}; + +struct gpio_kp { + struct gpio_event_input_devs *input_devs; + struct gpio_event_matrix_info *keypad_info; + struct hrtimer timer; + struct wake_lock wake_lock; + int current_output; + unsigned int use_irq:1; + unsigned int key_state_changed:1; + unsigned int last_key_state_changed:1; + unsigned int some_keys_pressed:2; + unsigned long keys_pressed[0]; +}; + +static struct gpio_kp *gpio_kp_state = NULL; + static int find_ms2_dev(struct device *dev, void *data) { if (!strncmp((char*)data, dev_name(dev), strlen((char*)data))) { @@ -475,11 +499,14 @@ static int debounce_fixup(int index) { int ret; - printk(KERN_INFO PREFIX "0x%x\n", index); + printk(KERN_INFO PREFIX "key_state_changed: %d, last_key_state_changed: %d, some_keys_pressed: %d\n", + gpio_kp_state->key_state_changed, + gpio_kp_state->last_key_state_changed, + gpio_kp_state->some_keys_pressed); ret = old_sw_fixup(index); if (!ret) - printk(KERN_INFO PREFIX "IGNORED!\n"); + printk(KERN_INFO PREFIX "Index 0x%x ignored!\n", index); return ret; } @@ -497,16 +524,23 @@ static struct device debounce_device = { static int __init debounce_init(void) { struct device *event_dev = NULL; + struct platform_device *pdev = NULL; struct gpio_event_platform_data *gpio_epd; struct gpio_event_info *gpio_ei; + struct gpio_event *gpio_e; int err = 0; + int i; printk(KERN_INFO PREFIX "Searching for " GPIO_EVENT_DEV_NAME "...\n"); event_dev = device_find_child(&platform_bus, GPIO_EVENT_DEV_NAME, find_ms2_dev); if (event_dev == NULL) return -ENODEV; - + + pdev = container_of(event_dev, struct platform_device, dev); + if (pdev == NULL) + return -ENODEV; + gpio_epd = (struct gpio_event_platform_data*)event_dev->platform_data; printk(KERN_INFO PREFIX "And there is a %s connected...\n", gpio_epd->name); if (strcmp(gpio_epd->name, "sholes-keypad")) @@ -515,6 +549,29 @@ static int __init debounce_init(void) gpio_ei = (struct gpio_event_info*)gpio_epd->info[0]; gpio_evmi = container_of(gpio_ei, struct gpio_event_matrix_info, info); + gpio_e = platform_get_drvdata(pdev); + printk(KERN_INFO PREFIX "Number of states: %d\n", gpio_e->info->info_count); + + /* Search for correct gpio_event state */ + for (i = 0; i < gpio_e->info->info_count; i++) { + if (gpio_e->info->info[i]->func == gpio_ei->func) { + printk(KERN_INFO PREFIX "Keypad state: %d\n", i); + gpio_kp_state = gpio_e->state[i]; + } + } + + if (!gpio_kp_state) { + printk(KERN_ERR PREFIX "Can't determine correct keypad state!\n"); + return -ENODEV; + } + + printk(KERN_INFO PREFIX "kp_use_irq: %d\n", gpio_kp_state->use_irq); +#if 0 + gpio_kp_state->use_irq=0; + hrtimer_start(&(gpio_kp_state->timer), gpio_evmi->poll_time, HRTIMER_MODE_REL); + printk(KERN_INFO PREFIX "kp_use_irq: %d\n", gpio_kp_state->use_irq); +#endif + err = device_register(&debounce_device); if (err) { return err;