mirror of
https://github.com/hathach/tinyusb.git
synced 2025-05-09 07:11:16 +08:00
233 lines
6.8 KiB
C
233 lines
6.8 KiB
C
/*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2019 Ha Thach (tinyusb.org)
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
* of this software and associated documentation files (the "Software"), to deal
|
|
* in the Software without restriction, including without limitation the rights
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
* copies of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
* THE SOFTWARE.
|
|
*
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
|
|
#include "bsp/board_api.h"
|
|
#include "tusb.h"
|
|
|
|
#if TUSB_MCU_VENDOR_ESPRESSIF
|
|
#define USBD_STACK_SIZE 4096
|
|
#else
|
|
// Increase stack size when debug log is enabled
|
|
#define USBD_STACK_SIZE (3*configMINIMAL_STACK_SIZE/2) * (CFG_TUSB_DEBUG ? 2 : 1)
|
|
#endif
|
|
|
|
#define CDC_STACK_SIZE configMINIMAL_STACK_SIZE
|
|
#define BLINKY_STACK_SIZE configMINIMAL_STACK_SIZE
|
|
|
|
//--------------------------------------------------------------------+
|
|
// MACRO CONSTANT TYPEDEF PROTOTYPES
|
|
//--------------------------------------------------------------------+
|
|
|
|
/* 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 task
|
|
#if configSUPPORT_STATIC_ALLOCATION
|
|
StackType_t blinky_stack[BLINKY_STACK_SIZE];
|
|
StaticTask_t blinky_taskdef;
|
|
|
|
StackType_t usb_device_stack[USBD_STACK_SIZE];
|
|
StaticTask_t usb_device_taskdef;
|
|
|
|
StackType_t cdc_stack[CDC_STACK_SIZE];
|
|
StaticTask_t cdc_taskdef;
|
|
#endif
|
|
|
|
static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED;
|
|
|
|
static void usb_device_task(void *param);
|
|
void led_blinking_task(void* param);
|
|
void cdc_task(void *params);
|
|
|
|
//--------------------------------------------------------------------+
|
|
// Main
|
|
//--------------------------------------------------------------------+
|
|
|
|
int main(void) {
|
|
board_init();
|
|
|
|
// Create task for: tinyusb, blinky, cdc
|
|
#if configSUPPORT_STATIC_ALLOCATION
|
|
xTaskCreateStatic(led_blinking_task, "blinky", BLINKY_STACK_SIZE, NULL, 1, blinky_stack, &blinky_taskdef);
|
|
xTaskCreateStatic(usb_device_task, "usbd", USBD_STACK_SIZE, NULL, configMAX_PRIORITIES-1, usb_device_stack, &usb_device_taskdef);
|
|
xTaskCreateStatic(cdc_task, "cdc", CDC_STACK_SIZE, NULL, configMAX_PRIORITIES - 2, cdc_stack, &cdc_taskdef);
|
|
#else
|
|
xTaskCreate(led_blinking_task, "blinky", BLINKY_STACK_SIZE, NULL, 1, NULL);
|
|
xTaskCreate(usb_device_task, "usbd", USBD_STACK_SIZE, NULL, configMAX_PRIORITIES - 1, NULL);
|
|
xTaskCreate(cdc_task, "cdc", CDC_STACK_SZIE, NULL, configMAX_PRIORITIES - 2, NULL);
|
|
#endif
|
|
|
|
#if !TUSB_MCU_VENDOR_ESPRESSIF
|
|
// skip starting scheduler (and return) for ESP32-S2 or ESP32-S3
|
|
vTaskStartScheduler();
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if TUSB_MCU_VENDOR_ESPRESSIF
|
|
void app_main(void) {
|
|
main();
|
|
}
|
|
#endif
|
|
|
|
// USB Device Driver task
|
|
// This top level thread process all usb events and invoke callbacks
|
|
static void usb_device_task(void *param) {
|
|
(void) param;
|
|
|
|
// init device stack on configured roothub port
|
|
// This should be called after scheduler/kernel is started.
|
|
// Otherwise it could cause kernel issue since USB IRQ handler does use RTOS queue API.
|
|
tusb_rhport_init_t dev_init = {
|
|
.role = TUSB_ROLE_DEVICE,
|
|
.speed = TUSB_SPEED_AUTO
|
|
};
|
|
tusb_init(BOARD_TUD_RHPORT, &dev_init);
|
|
|
|
if (board_init_after_tusb) {
|
|
board_init_after_tusb();
|
|
}
|
|
|
|
// RTOS forever loop
|
|
while (1) {
|
|
// put this thread to waiting state until there is new events
|
|
tud_task();
|
|
|
|
// following code only run if tud_task() process at least 1 event
|
|
tud_cdc_write_flush();
|
|
}
|
|
}
|
|
|
|
//--------------------------------------------------------------------+
|
|
// 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 = tud_mounted() ? BLINK_MOUNTED : BLINK_NOT_MOUNTED;
|
|
}
|
|
|
|
//--------------------------------------------------------------------+
|
|
// USB CDC
|
|
//--------------------------------------------------------------------+
|
|
void cdc_task(void *params) {
|
|
(void) params;
|
|
|
|
// RTOS forever loop
|
|
while (1) {
|
|
// connected() check for DTR bit
|
|
// Most but not all terminal client set this when making connection
|
|
// if ( tud_cdc_connected() )
|
|
{
|
|
// There are data available
|
|
while (tud_cdc_available()) {
|
|
uint8_t buf[64];
|
|
|
|
// read and echo back
|
|
uint32_t count = tud_cdc_read(buf, sizeof(buf));
|
|
(void) count;
|
|
|
|
// Echo back
|
|
// Note: Skip echo by commenting out write() and write_flush()
|
|
// for throughput test e.g
|
|
// $ dd if=/dev/zero of=/dev/ttyACM0 count=10000
|
|
tud_cdc_write(buf, count);
|
|
}
|
|
|
|
tud_cdc_write_flush();
|
|
}
|
|
|
|
// For ESP32-Sx this delay is essential to allow idle how to run and reset watchdog
|
|
vTaskDelay(1);
|
|
}
|
|
}
|
|
|
|
// Invoked when cdc when line state changed e.g connected/disconnected
|
|
void tud_cdc_line_state_cb(uint8_t itf, bool dtr, bool rts) {
|
|
(void) itf;
|
|
(void) rts;
|
|
|
|
// TODO set some indicator
|
|
if (dtr) {
|
|
// Terminal connected
|
|
} else {
|
|
// Terminal disconnected
|
|
}
|
|
}
|
|
|
|
// Invoked when CDC interface received data from host
|
|
void tud_cdc_rx_cb(uint8_t itf) {
|
|
(void) itf;
|
|
}
|
|
|
|
//--------------------------------------------------------------------+
|
|
// BLINKING TASK
|
|
//--------------------------------------------------------------------+
|
|
void led_blinking_task(void* param) {
|
|
(void) param;
|
|
static uint32_t start_ms = 0;
|
|
static bool led_state = false;
|
|
|
|
while (1) {
|
|
// Blink every interval ms
|
|
vTaskDelay(blink_interval_ms / portTICK_PERIOD_MS);
|
|
start_ms += blink_interval_ms;
|
|
|
|
board_led_write(led_state);
|
|
led_state = 1 - led_state; // toggle
|
|
}
|
|
}
|