mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-24 23:38:09 +00:00
54 lines
1.6 KiB
C
54 lines
1.6 KiB
C
#define BTN_PIN_LEFT GPIO_PIN_5
|
|
#define BTN_PIN_RIGHT GPIO_PIN_2
|
|
|
|
#define DISPLAY_RESX 128
|
|
#define DISPLAY_RESY 64
|
|
#define BTN_LEFT_COORDS touch_pack_xy(0, DISPLAY_RESY - 1)
|
|
#define BTN_RIGHT_COORDS touch_pack_xy(DISPLAY_RESX - 1, DISPLAY_RESY - 1)
|
|
|
|
void touch_init(void) {
|
|
__HAL_RCC_GPIOC_CLK_ENABLE();
|
|
|
|
GPIO_InitTypeDef GPIO_InitStructure;
|
|
|
|
// PC4 capacitive touch panel module (CTPM) interrupt (INT) input
|
|
GPIO_InitStructure.Mode = GPIO_MODE_INPUT;
|
|
GPIO_InitStructure.Pull = GPIO_PULLUP;
|
|
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_LOW;
|
|
GPIO_InitStructure.Pin = BTN_PIN_LEFT | BTN_PIN_RIGHT;
|
|
HAL_GPIO_Init(GPIOC, &GPIO_InitStructure);
|
|
}
|
|
|
|
void touch_power_on(void) { }
|
|
|
|
void touch_power_off(void) { }
|
|
|
|
uint32_t touch_read(void)
|
|
{
|
|
static char last_left = 0, last_right = 0;
|
|
char left = (GPIO_PIN_RESET == HAL_GPIO_ReadPin(GPIOC, BTN_PIN_LEFT));
|
|
char right = (GPIO_PIN_RESET == HAL_GPIO_ReadPin(GPIOC, BTN_PIN_RIGHT));
|
|
if (last_left != left) {
|
|
last_left = left;
|
|
if (left) {
|
|
return TOUCH_START | BTN_LEFT_COORDS;
|
|
} else {
|
|
return TOUCH_END | BTN_LEFT_COORDS;
|
|
}
|
|
}
|
|
if (last_right != right) {
|
|
last_right = right;
|
|
if (right) {
|
|
return TOUCH_START | BTN_RIGHT_COORDS;
|
|
} else {
|
|
return TOUCH_END | BTN_RIGHT_COORDS;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
uint32_t touch_is_detected(void)
|
|
{
|
|
return (GPIO_PIN_RESET == HAL_GPIO_ReadPin(GPIOC, BTN_PIN_LEFT)) || (GPIO_PIN_RESET == HAL_GPIO_ReadPin(GPIOC, BTN_PIN_RIGHT));
|
|
}
|