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button: add brightness adjustment

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This commit is contained in:
Dien-Nhung Nguyen-Phu
2024-06-02 22:42:01 +07:00
parent 1ae34de744
commit 6d09a8bb50
3 changed files with 25 additions and 9 deletions
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17
src/leddrv.c
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@@ -1,7 +1,9 @@
#include "leddrv.h"
#define LED_DRIVE_STRENTH 0
#define LED_PINCOUNT (23)
volatile int drive_strength;
typedef enum {
FLOATING,
LOW,
@@ -28,15 +30,20 @@ static void gpio_buf_set(pinctrl_t pinctl, tristate_t state)
}
}
void led_setDriveStrength(int is_20mA)
{
drive_strength = is_20mA;
}
static void gpio_buf_apply(
volatile uint8_t *gpio_base,
uint32_t *port, uint32_t *cfg,
uint32_t *mask)
{
#if LED_DRIVE_STRENTH != 0
uint32_t *drv = (uint32_t *)(gpio_base + GPIO_PD_DRV);
*drv = (*drv & ~*mask) | (*cfg & *mask);
#endif
if (drive_strength) {
uint32_t *drv = (uint32_t *)(gpio_base + GPIO_PD_DRV);
*drv = (*drv & ~*mask) | (*cfg & *mask);
}
uint32_t *dir = (uint32_t *)(gpio_base + GPIO_DIR);
*dir = (*dir & ~*mask) | (*cfg & *mask);