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Added LED blinking methods.

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It has three blink patterns depending on the state:
- Unmounted
- Mounted
- Processing

Signed-off-by: Pol Henarejos <pol.henarejos@cttc.es>
This commit is contained in:
Pol Henarejos
2022-08-22 13:55:03 +02:00
parent ad4119a653
commit a79296b423
1 changed files with 71 additions and 0 deletions
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71
firmware/pico_rng.c
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@@ -33,6 +33,22 @@ static inline uint32_t board_millis(void)
return to_ms_since_boot(get_absolute_time());
}
enum {
BLINK_NOT_MOUNTED = (250 << 16) | 250,
BLINK_MOUNTED = (250 << 16) | 250,
BLINK_SUSPENDED = (500 << 16) | 1000,
BLINK_PROCESSING = (50 << 16) | 50,
BLINK_ALWAYS_ON = UINT32_MAX,
BLINK_ALWAYS_OFF = 0
};
static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED;
void led_set_blink(uint32_t mode) {
blink_interval_ms = mode;
}
// Device descriptors
#include "pico_rng.h"
@@ -521,6 +537,40 @@ void isr_usbctrl(void) {
}
}
void led_blinking_task() {
#ifdef PICO_DEFAULT_LED_PIN
static uint32_t start_ms = 0;
static uint8_t led_state = false;
static uint8_t led_color = PICO_DEFAULT_LED_PIN;
#ifdef PICO_DEFAULT_LED_PIN_INVERTED
uint32_t interval = !led_state ? blink_interval_ms & 0xffff : blink_interval_ms >> 16;
#else
uint32_t interval = led_state ? blink_interval_ms & 0xffff : blink_interval_ms >> 16;
#endif
// Blink every interval ms
if (board_millis() - start_ms < interval)
return; // not enough time
start_ms += interval;
gpio_put(led_color, led_state);
led_state ^= 1; // toggle
#endif
}
void led_off_all() {
#ifdef PIMORONI_TINY2040
gpio_put(TINY2040_LED_R_PIN, 1);
gpio_put(TINY2040_LED_G_PIN, 1);
gpio_put(TINY2040_LED_B_PIN, 1);
#else
#ifdef PICO_DEFAULT_LED_PIN
gpio_put(PICO_DEFAULT_LED_PIN, 0);
#endif
#endif
}
/**
* @brief EP0 in transfer complete. Either finish the SET_ADDRESS process, or receive a zero
* length status packet from the host.
@@ -559,6 +609,7 @@ void ep0_out_handler(uint8_t *buf, uint16_t len) {
* @param len the length of the random data in bytes
*/
void get_random_data(char *buf, uint16_t len) {
led_set_blink(BLINK_PROCESSING);
if (len > 64)
len = 64;
memset(buf, 0, len);
@@ -585,6 +636,7 @@ void get_random_data(char *buf, uint16_t len) {
}
memcpy(buf + i, &random_word, sizeof(random_word));
}
led_set_blink(BLINK_MOUNTED);
}
/**
@@ -610,6 +662,22 @@ int main(void) {
// Enable uart debug messages
stdio_init_all();
#ifdef PIMORONI_TINY2040
gpio_init(TINY2040_LED_R_PIN);
gpio_set_dir(TINY2040_LED_R_PIN, GPIO_OUT);
gpio_init(TINY2040_LED_G_PIN);
gpio_set_dir(TINY2040_LED_G_PIN, GPIO_OUT);
gpio_init(TINY2040_LED_B_PIN);
gpio_set_dir(TINY2040_LED_B_PIN, GPIO_OUT);
#else
#ifdef PICO_DEFAULT_LED_PIN
gpio_init(PICO_DEFAULT_LED_PIN);
gpio_set_dir(PICO_DEFAULT_LED_PIN, GPIO_OUT);
#endif
#endif
led_off_all();
// ADC
adc_init();
adc_gpio_init(27);
@@ -623,6 +691,8 @@ int main(void) {
tight_loop_contents();
}
led_set_blink(BLINK_MOUNTED);
// Populate the TX buffer
get_random_data(ep1_buf, 64);
usb_start_transfer(usb_get_endpoint_configuration(EP1_IN_ADDR), ep1_buf, 64);
@@ -630,6 +700,7 @@ int main(void) {
// Everything is interrupt driven so just loop here
while (1) {
tight_loop_contents();
led_blinking_task();
}
return 0;