int stm32_test_gpio(void)
{
int ret = -1;
struct clk *clk;
uint8_t pin_num;
uint32_t id = GPIO_C;
int mode, otype, ospeed, pupd;
clk = clk_get("gpio_c");
if (!clk)
return -1;
/* Set GPIO_C parameters */
for (pin_num = 0; pin_num < PIN_NUM_MAX; pin_num++) {
gpio_set_mode(id, pin_num, GPIO_MODE_OUTPUT);
gpio_set_type(id, pin_num, GPIO_OTYPE_PP);
gpio_set_speed(id, pin_num, GPIO_OSPEED_HIGH);
gpio_set_pupd(id, pin_num, GPIO_PUPD_NOPULL);
}
/* Check GPIO_C settings */
for (pin_num = 0; pin_num < PIN_NUM_MAX; pin_num++) {
/* Test mode */
mode = gpio_get_mode(id, pin_num);
if (mode != GPIO_MODE_OUTPUT)
goto err;
/* Test output type */
otype = gpio_get_type(id, pin_num);
if (otype != GPIO_OTYPE_PP)
goto err;
/* Test output speed */
ospeed = gpio_get_speed(id, pin_num);
if (ospeed != GPIO_OSPEED_HIGH)
goto err;
/* Test pull-up/down */
pupd = gpio_get_pupd(id, pin_num);
if (pupd != GPIO_PUPD_NOPULL)
goto err;
}
gpio_set_pin_value(GPIO_C, LED_BLUE, 1);
gpio_set_pin_value(GPIO_C, LED_GREEN, 1);
gpio_set_pin_value(GPIO_C, LED_BLUE, 0);
gpio_set_pin_value(GPIO_C, LED_GREEN, 0);
ret = 0;
err:
clk_put(clk);
return ret;
}
/**
* @brief toggle the TX LED GPIO pin.
*
*/
void tx_led_toggle(void)
{
static uint8_t toggle_state = 0;
if (toggle_state) {
gpio_set_pin_value(STATUS_TX_LED_PIN, GPIO_VALUE_LOW);
} else {
gpio_set_pin_value(STATUS_TX_LED_PIN, GPIO_VALUE_HIGH);
}
toggle_state = ~toggle_state;
}
/**
* @brief turn the status TX and RX LEDs off.
*
*/
void txrx_leds_off(void)
{
gpio_set_pin_value(STATUS_RX_LED_PIN, GPIO_VALUE_HIGH);
gpio_set_pin_value(STATUS_TX_LED_PIN, GPIO_VALUE_HIGH);
}
