diff options
Diffstat (limited to 'include/mxc_gpio.h')
| -rw-r--r-- | include/mxc_gpio.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/mxc_gpio.h b/include/mxc_gpio.h index 002ba61..f673dce 100644 --- a/include/mxc_gpio.h +++ b/include/mxc_gpio.h @@ -24,6 +24,11 @@ #ifndef __MXC_GPIO_H #define __MXC_GPIO_H +/* Converts a GPIO port number and the internal bit position + * to the GPIO number + */ +#define MXC_GPIO_PORT_TO_NUM(port, bit) (((port - 1) << 5) + (bit & 0x1f)) + enum mxc_gpio_direction { MXC_GPIO_DIRECTION_IN, MXC_GPIO_DIRECTION_OUT, |