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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include "bsp/board.h"
#include "tusb.h"
#include "neopix.h"
/* Blink pattern
* - 250 ms : device not mounted
* - 1000 ms : device mounted
* - 2500 ms : device is suspended
*/
enum {
BLINK_NOT_MOUNTED = 250,
BLINK_MOUNTED = 1000,
BLINK_SUSPENDED = 2500,
};
static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED;
static struct neopix onboard_led;
void led_blinking_task(void);
int main(void)
{
board_init();
neopix_init(&onboard_led, pio0, 0, 25);
tud_init(BOARD_TUD_RHPORT);
while (1) {
tud_task();
led_blinking_task();
}
return 0;
}
//--------------------------------------------------------------------+
// Device callbacks
//--------------------------------------------------------------------+
// Invoked when device is mounted
void tud_mount_cb(void)
{
blink_interval_ms = BLINK_MOUNTED;
}
// Invoked when device is unmounted
void tud_umount_cb(void)
{
blink_interval_ms = BLINK_NOT_MOUNTED;
}
// Invoked when usb bus is suspended
// remote_wakeup_en : if host allow us to perform remote wakeup
// Within 7ms, device must draw an average of current less than 2.5 mA from bus
void tud_suspend_cb(bool remote_wakeup_en)
{
(void) remote_wakeup_en;
blink_interval_ms = BLINK_SUSPENDED;
}
// Invoked when usb bus is resumed
void tud_resume_cb(void)
{
blink_interval_ms = BLINK_MOUNTED;
}
//--------------------------------------------------------------------+
// USB HID
//--------------------------------------------------------------------+
// Invoked when received GET_REPORT control request
// Application must fill buffer report's content and return its length.
// Return zero will cause the stack to STALL request
uint16_t tud_hid_get_report_cb(uint8_t itf, uint8_t report_id,
hid_report_type_t report_type, uint8_t* buffer, uint16_t reqlen)
{
(void) itf;
(void) report_id;
(void) report_type;
(void) buffer;
(void) reqlen;
return 0;
}
// Invoked when received SET_REPORT control request or
// received data on OUT endpoint ( Report ID = 0, Type = 0 )
void tud_hid_set_report_cb(uint8_t itf, uint8_t report_id,
hid_report_type_t report_type, uint8_t const* buffer, uint16_t bufsize)
{
(void) itf;
(void) report_id;
(void) report_type;
tud_hid_report(0, buffer, bufsize);
}
void
led_blinking_task(void)
{
static uint32_t start_ms = 0;
static bool state = false;
if (board_millis() - start_ms < blink_interval_ms)
return;
neopix_put(&onboard_led, neopix_u32rgb(255 * state, 0, 0));
start_ms += blink_interval_ms;
state ^= true;
}
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