text: /*
   * The MIT License (MIT)
   *
   * Copyright (c) 2020 Ha Thach (tinyusb.org)
   * Copyright (c) 2020 Jerzy Kasenberg
   *
   * 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.
   *
   */
  
  #ifndef _TUSB_CONFIG_H_
  #define _TUSB_CONFIG_H_
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  //--------------------------------------------------------------------
  // COMMON CONFIGURATION
  //--------------------------------------------------------------------
  
  // defined by compiler flags for flexibility
  #ifndef CFG_TUSB_MCU
  #error CFG_TUSB_MCU must be defined
  #endif
  
  #if CFG_TUSB_MCU == OPT_MCU_LPC43XX || CFG_TUSB_MCU == OPT_MCU_LPC18XX || CFG_TUSB_MCU == OPT_MCU_MIMXRT10XX
  #define CFG_TUSB_RHPORT0_MODE       (OPT_MODE_DEVICE | OPT_MODE_HIGH_SPEED)
  #else
  #define CFG_TUSB_RHPORT0_MODE       OPT_MODE_DEVICE
  #endif
  
  #define CFG_TUSB_OS                 OPT_OS_NONE
  
  #ifndef CFG_TUSB_DEBUG
  // Can be set during compilation i.e.: make LOG=<value for CFG_TUSB_DEBUG> BOARD=<bsp>
  // Keep in mind that enabling logs when data is streaming can disrupt data flow.
  // It can be very helpful though when audio unit requests are tested/debugged.
  #define CFG_TUSB_DEBUG              0
  #endif
  
  /* USB DMA on some MCUs can only access a specific SRAM region with restriction on alignment.
   * Tinyusb use follows macros to declare transferring memory so that they can be put
   * into those specific section.
   * e.g
   * - CFG_TUSB_MEM SECTION : __attribute__ (( section(".usb_ram") ))
   * - CFG_TUSB_MEM_ALIGN   : __attribute__ ((aligned(4)))
   */
  #ifndef CFG_TUSB_MEM_SECTION
  #define CFG_TUSB_MEM_SECTION
  #endif
  
  #ifndef CFG_TUSB_MEM_ALIGN
  #define CFG_TUSB_MEM_ALIGN          __attribute__ ((aligned(4)))
  #endif
  
  //--------------------------------------------------------------------
  // DEVICE CONFIGURATION
  //--------------------------------------------------------------------
  
  #ifndef CFG_TUD_ENDPOINT0_SIZE
  #define CFG_TUD_ENDPOINT0_SIZE    64
  #endif
  
  //------------- CLASS -------------//
  #define CFG_TUD_CDC               0
  #define CFG_TUD_MSC               0
  #define CFG_TUD_HID               0
  #define CFG_TUD_MIDI              0
  #define CFG_TUD_AUDIO             1
  #define CFG_TUD_VENDOR            0
  
  //--------------------------------------------------------------------
  // AUDIO CLASS DRIVER CONFIGURATION
  //--------------------------------------------------------------------
  
  #ifndef AUDIO_SAMPLE_RATE
  #define AUDIO_SAMPLE_RATE                   48000
  #endif
  
  #define CFG_TUD_AUDIO_IN_PATH               (CFG_TUD_AUDIO)
  #define CFG_TUD_AUDIO_OUT_PATH              (CFG_TUD_AUDIO)
  
  // Audio format type
  #define CFG_TUD_AUDIO_FORMAT_TYPE_TX        AUDIO_FORMAT_TYPE_I
  #define CFG_TUD_AUDIO_FORMAT_TYPE_RX        AUDIO_FORMAT_TYPE_I
  
  // Audio format type I specifications
  #define CFG_TUD_AUDIO_FORMAT_TYPE_I_TX      AUDIO_DATA_FORMAT_TYPE_I_PCM
  #define CFG_TUD_AUDIO_FORMAT_TYPE_I_RX      AUDIO_DATA_FORMAT_TYPE_I_PCM
  #define CFG_TUD_AUDIO_N_CHANNELS_TX         1
  #define CFG_TUD_AUDIO_N_BYTES_PER_SAMPLE_TX 2
  #define CFG_TUD_AUDIO_N_CHANNELS_RX         2
  #define CFG_TUD_AUDIO_N_BYTES_PER_SAMPLE_RX 2
  #define CFG_TUD_AUDIO_RX_ITEMSIZE           2
  #define CFG_TUD_AUDIO_ENABLE_FEEDBACK_EP    0
  
  // EP and buffer size - for isochronous EP´s, the buffer and EP size are equal (different sizes would not make sense)
  #define CFG_TUD_AUDIO_EPSIZE_IN           (CFG_TUD_AUDIO_IN_PATH * (48 + 1) * (CFG_TUD_AUDIO_N_BYTES_PER_SAMPLE_TX) * (CFG_TUD_AUDIO_N_CHANNELS_TX)) // 48 Samples (48 kHz) x 2 Bytes/Sample x n Channels
  #define CFG_TUD_AUDIO_TX_FIFO_COUNT       (CFG_TUD_AUDIO_IN_PATH * 1)
  #define CFG_TUD_AUDIO_TX_FIFO_SIZE        (CFG_TUD_AUDIO_IN_PATH ? ((CFG_TUD_AUDIO_EPSIZE_IN)) : 0)
  
  // EP and buffer size - for isochronous EP´s, the buffer and EP size are equal (different sizes would not make sense)
  #define CFG_TUD_AUDIO_EPSIZE_OUT          (CFG_TUD_AUDIO_OUT_PATH * ((48 + CFG_TUD_AUDIO_ENABLE_FEEDBACK_EP) * (CFG_TUD_AUDIO_N_BYTES_PER_SAMPLE_RX) * (CFG_TUD_AUDIO_N_CHANNELS_RX))) // N Samples (N kHz) x 2 Bytes/Sample x n Channels
  #define CFG_TUD_AUDIO_RX_FIFO_COUNT       (CFG_TUD_AUDIO_OUT_PATH * 1)
  #define CFG_TUD_AUDIO_RX_FIFO_SIZE        (CFG_TUD_AUDIO_OUT_PATH ? (3 * (CFG_TUD_AUDIO_EPSIZE_OUT / CFG_TUD_AUDIO_RX_FIFO_COUNT)) : 0)
  
  // Number of Standard AS Interface Descriptors (4.9.1) defined per audio function - this is required to be able to remember the current alternate settings of these interfaces - We restrict us here to have a constant number for all audio functions (which means this has to be the maximum number of AS interfaces an audio function has and a second audio function with less AS interfaces just wastes a few bytes)
  #define CFG_TUD_AUDIO_N_AS_INT 			   		1
  
  // Size of control request buffer
  #define CFG_TUD_AUDIO_CTRL_BUF_SIZE 				64
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* _TUSB_CONFIG_H_ */
  