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Input: gpio_keys - add support for switches (EV_SW) 

Signed-off-by: Roman Moravcik <roman.moravcik@gmail.com>
Signed-off-by: Paul Sokolovsky <pmiscml@gmail.com>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>
This commit is contained in:
Roman Moravcik 2007-05-01 00:39:13 -04:00 committed by Dmitry Torokhov
parent bc95f3669f
commit 84767d00a8
2 changed files with 15 additions and 9 deletions
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21
drivers/input/keyboard/gpio_keys.c
View File

@ -35,11 +35,14 @@ static irqreturn_t gpio_keys_isr(int irq, void *dev_id)
struct input_dev *input = platform_get_drvdata(pdev);
for (i = 0; i < pdata->nbuttons; i++) {
int gpio = pdata->buttons[i].gpio;
if (irq == gpio_to_irq(gpio)) {
int state = (gpio_get_value(gpio) ? 1 : 0) ^ (pdata->buttons[i].active_low);
struct gpio_keys_button *button = &pdata->buttons[i];
int gpio = button->gpio;
input_report_key(input, pdata->buttons[i].keycode, state);
if (irq == gpio_to_irq(gpio)) {
unsigned int type = button->type ?: EV_KEY;
int state = (gpio_get_value(gpio) ? 1 : 0) ^ button->active_low;
input_event(input, type, button->code, !!state);
input_sync(input);
}
}
@ -71,19 +74,21 @@ static int __devinit gpio_keys_probe(struct platform_device *pdev)
input->id.version = 0x0100;
for (i = 0; i < pdata->nbuttons; i++) {
int code = pdata->buttons[i].keycode;
int irq = gpio_to_irq(pdata->buttons[i].gpio);
struct gpio_keys_button *button = &pdata->buttons[i];
int irq = gpio_to_irq(button->gpio);
unsigned int type = button->type ?: EV_KEY;
set_irq_type(irq, IRQ_TYPE_EDGE_BOTH);
error = request_irq(irq, gpio_keys_isr, IRQF_SAMPLE_RANDOM,
pdata->buttons[i].desc ? pdata->buttons[i].desc : "gpio_keys",
button->desc ? button->desc : "gpio_keys",
pdev);
if (error) {
printk(KERN_ERR "gpio-keys: unable to claim irq %d; error %d\n",
irq, error);
goto fail;
}
set_bit(code, input->keybit);
input_set_capability(input, type, button->code);
}
error = input_register_device(input);

3
include/linux/gpio_keys.h
View File

@ -3,10 +3,11 @@
struct gpio_keys_button {
/* Configuration parameters */
int keycode;
int code; /* input event code (KEY_*, SW_*) */
int gpio;
int active_low;
char *desc;
int type; /* input event type (EV_KEY, EV_SW) */
};
struct gpio_keys_platform_data {