diff options
| author | Caesar Wang <wxt@rock-chips.com> | 2016-05-25 18:48:45 +0800 |
|---|---|---|
| committer | Caesar Wang <wxt@rock-chips.com> | 2016-05-27 09:39:56 +0800 |
| commit | 195889829e3f3fc4eabb3297b3d686daf14af7f5 (patch) | |
| tree | 0ed6d6aa607ae30ef5a7f5fc582a981764393b53 /include/drivers | |
| parent | e141aa0357fd4977ba874f4f86874e2cadc73498 (diff) | |
gpio: support gpio set/get pull status
On some platform gpio can set/get pull status when input, add these
function so we can set/get gpio pull status when need it. And they are
optional function.
Diffstat (limited to 'include/drivers')
| -rw-r--r-- | include/drivers/gpio.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/include/drivers/gpio.h b/include/drivers/gpio.h index a5cb5c7f..633b3f6b 100644 --- a/include/drivers/gpio.h +++ b/include/drivers/gpio.h @@ -37,17 +37,25 @@ #define GPIO_LEVEL_LOW 0 #define GPIO_LEVEL_HIGH 1 +#define GPIO_PULL_NONE 0 +#define GPIO_PULL_UP 1 +#define GPIO_PULL_DOWN 2 + typedef struct gpio_ops { int (*get_direction)(int gpio); void (*set_direction)(int gpio, int direction); int (*get_value)(int gpio); void (*set_value)(int gpio, int value); + void (*set_pull)(int gpio, int pull); + int (*get_pull)(int gpio); } gpio_ops_t; int gpio_get_direction(int gpio); void gpio_set_direction(int gpio, int direction); int gpio_get_value(int gpio); void gpio_set_value(int gpio, int value); +void gpio_set_pull(int gpio, int pull); +int gpio_get_pull(int gpio); void gpio_init(const gpio_ops_t *ops); #endif /* __GPIO_H__ */ |