pinebuds/apps/btusbaudio/usbaudio_thread.c

/***************************************************************************
 *
 * Copyright 2015-2019 BES.
 * All rights reserved. All unpublished rights reserved.
 *
 * No part of this work may be used or reproduced in any form or by any
 * means, or stored in a database or retrieval system, without prior written
 * permission of BES.
 *
 * Use of this work is governed by a license granted by BES.
 * This work contains confidential and proprietary information of
 * BES. which is protected by copyright, trade secret,
 * trademark and other intellectual property rights.
 *
 ****************************************************************************/
#include "usbaudio_thread.h"
#include "app_utils.h"
#include "cmsis_os.h"
#include "hal_trace.h"
#include "usb_audio_app.h"

static void usb_thread(void const *argument);
osThreadDef(usb_thread, osPriorityHigh, 1, 2048, "usb");

osMailQDef(usb_mailbox, USB_MAILBOX_MAX, USB_MESSAGE);
static osMailQId usb_mailbox = NULL;
static uint8_t usb_mailbox_cnt = 0;
#define USBAUDIO_DEBUG TRACE
static int usb_mailbox_init(void) {
  USBAUDIO_DEBUG("%s,%d", __func__, __LINE__);
  usb_mailbox = osMailCreate(osMailQ(usb_mailbox), NULL);
  if (usb_mailbox == NULL) {
    USBAUDIO_DEBUG("Failed to Create usb_mailbox\n");
    return -1;
  }
  usb_mailbox_cnt = 0;
  return 0;
}

int usb_mailbox_put(USB_MESSAGE *msg_src) {
  osStatus status;
  USB_MESSAGE *msg_p = NULL;

  USBAUDIO_DEBUG("%s,%d", __func__, __LINE__);
  if (usb_mailbox_cnt >= 1) {
    USBAUDIO_DEBUG("%s,%d usb_mailbox_cnt  = %d.", __func__, __LINE__,
                   usb_mailbox_cnt);
    return 0;
  }
  msg_p = (USB_MESSAGE *)osMailAlloc(usb_mailbox, 0);
  ASSERT(msg_p, "osMailAlloc error");
  msg_p->id = msg_src->id;
  msg_p->ptr = msg_src->ptr;
  msg_p->param0 = msg_src->param0;
  msg_p->param1 = msg_src->param1;

  status = osMailPut(usb_mailbox, msg_p);
  if (osOK == status)
    usb_mailbox_cnt++;
  USBAUDIO_DEBUG("%s,%d,usb_mailbox_cnt = %d.", __func__, __LINE__,
                 usb_mailbox_cnt);
  return (int)status;
}

int usb_mailbox_free(USB_MESSAGE *msg_p) {
  osStatus status;

  USBAUDIO_DEBUG("%s,%d", __func__, __LINE__);
  status = osMailFree(usb_mailbox, msg_p);
  if (osOK == status)
    usb_mailbox_cnt--;
  USBAUDIO_DEBUG("%s,%d,usb_mailbox_cnt = %d.", __func__, __LINE__,
                 usb_mailbox_cnt);
  return (int)status;
}

int usb_mailbox_get(USB_MESSAGE **msg_p) {
  osEvent evt;
  evt = osMailGet(usb_mailbox, osWaitForever);
  if (evt.status == osEventMail) {
    *msg_p = (USB_MESSAGE *)evt.value.p;
    return 0;
  }
  return -1;
}

static void usb_thread(void const *argument) {
  // USB_FUNC_T usb_funcp;
  USBAUDIO_DEBUG("%s,%d", __func__, __LINE__);
  while (1) {
    USB_MESSAGE *msg_p = NULL;

    if (!usb_mailbox_get(&msg_p)) {
      // TRACE(2,"_debug: %s,%d",__func__,__LINE__);
      USBAUDIO_DEBUG(
          "usb_thread: id = 0x%x, ptr = 0x%x,param0 = 0x%x,param1 = 0x%x.",
          msg_p->id, msg_p->ptr, msg_p->param0, msg_p->param1);
      usb_mailbox_free(msg_p);
      usb_audio_app_loop();
    }
  }
}

static void usb_enqueue_cmd(uint32_t data) {
  USB_MESSAGE usb_msg;

  usb_msg.id = 0;
  usb_msg.param0 = 0;
  usb_msg.param1 = 0;
  usb_msg.ptr = 0;
  usb_mailbox_put(&usb_msg);
}

int usb_os_init(void) {
  osThreadId usb_tid;

  USBAUDIO_DEBUG("%s,%d", __func__, __LINE__);
  if (usb_mailbox_init()) {
    USBAUDIO_DEBUG("_debug: %s,%d", __func__, __LINE__);
    return -1;
  }
  usb_tid = osThreadCreate(osThread(usb_thread), NULL);
  if (usb_tid == NULL) {
    USBAUDIO_DEBUG("Failed to Create usb_thread\n");
    return 0;
  }

  usb_audio_set_enqueue_cmd_callback(usb_enqueue_cmd);

  return 0;
}