— a/alps/kernel-4.14/drivers/input/keyboard/dw_gpio_key.c
+++ b/alps/kernel-4.14/drivers/input/keyboard/dw_gpio_key.c
@@ -17,16 +17,32 @@ static int key_state; // 按键状态
static int key1_eint; // IRQ
static int key1_eint_gpio; // GPIO
+static int key1_value = 0;
+
+static unsigned long key1_swdebounce;
+static unsigned long key1_hwdebounce;
+static struct delayed_work key1_delaywork;
+
static irqreturn_t gpio_key_irq_handler(int irq, void *dev_id) {
-
//pr_info("%s,%d-irq=%d", __func__, __LINE__, irq); -
disable_irq_nosync(irq); -
schedule_delayed_work(&key1_delaywork, -
msecs_to_jiffies(key1_swdebounce)); - return IRQ_HANDLED;
+}
+static void key1_eint_workcb(struct work_struct *work)
+{
int state = gpio_get_value(key1_eint_gpio);
-
pr_info("%s %d state=%d key_state=%d\n", __func__, __LINE__,state, key_state);
-
state = !state; -
if (state != key_state) {//pr_info("%s %d state=%d key_state=%d\n", __func__, __LINE__,state, key_state);
key_state = state;
-
pr_info("%s %d MY_KEY_1=%d\n", __func__, __LINE__,MY_KEY_1); -
input_report_key(input_dev, MY_KEY_1, key_state); // 报告按键事件
-
}input_report_key(input_dev, /*MY_KEY_1*/key1_value, key_state); // 报告按键事件 input_sync(input_dev); // 同步输入设备
- return IRQ_HANDLED;
-
enable_irq(key1_eint);
}
static int dw_gpio_key_probe(struct platform_device *pdev)
@@ -35,7 +51,8 @@ static int dw_gpio_key_probe(struct platform_device *pdev)
int error;
struct device_node *node = NULL;
-
//u32 ints[2] = {0};
-
u32 ints[2] = {0}; pr_info("%s %d E+\n", __func__, __LINE__);
@@ -71,6 +88,20 @@ static int dw_gpio_key_probe(struct platform_device *pdev)
pr_info("%s,%d GPIO IRQ : %d\n", __func__,__LINE__, key1_eint);
enable_irq_wake(key1_eint);
-
error = of_property_read_u32_array(node, "key1-debounce", -
ints, ARRAY_SIZE(ints)); -
if (!error) -
key1_hwdebounce = ints[1]; -
key1_swdebounce = msecs_to_jiffies(100); -
of_property_read_u32(node, "key1-linux-code", &key1_value); -
if(!key1_value) { -
key1_value = MY_KEY_1; -
} -
INIT_DELAYED_WORK(&key1_delaywork, key1_eint_workcb); }
@@ -86,7 +117,7 @@ static int dw_gpio_key_probe(struct platform_device *pdev)
input_dev->name = “dw_gpio_key”;
input_dev->id.bustype = BUS_HOST;
input_dev->evbit[0] = BIT_MASK(EV_KEY);
- input_dev->keybit[BIT_WORD(MY_KEY_1)] = BIT_MASK(MY_KEY_1);
-
input_dev->keybit[BIT_WORD(/MY_KEY_1/key1_value)] = BIT_MASK(/MY_KEY_1/key1_value);
/* 注册输入设备 */
error = input_register_device(input_dev);