text: /*
   * 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.
   *
   */
  
  #ifndef _TUSB_CONFIG_H_
  #define _TUSB_CONFIG_H_
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  //--------------------------------------------------------------------+
  // Board Specific Configuration
  //--------------------------------------------------------------------+
  
  // RHPort number used for device can be defined by board.mk, default to port 0
  #ifndef BOARD_TUD_RHPORT
  #define BOARD_TUD_RHPORT      0
  #endif
  
  // RHPort max operational speed can defined by board.mk
  #ifndef BOARD_TUD_MAX_SPEED
  #define BOARD_TUD_MAX_SPEED   OPT_MODE_DEFAULT_SPEED
  #endif
  
  //--------------------------------------------------------------------
  // COMMON CONFIGURATION
  //--------------------------------------------------------------------
  
  // defined by compiler flags for flexibility
  #ifndef CFG_TUSB_MCU
  #error CFG_TUSB_MCU must be defined
  #endif
  
  #ifndef CFG_TUSB_OS
  #define CFG_TUSB_OS                 OPT_OS_NONE
  #endif
  
  #ifndef CFG_TUSB_DEBUG
  #define CFG_TUSB_DEBUG              0
  #endif
  
  // Enable Device stack
  #define CFG_TUD_ENABLED       1
  
  // Default is max speed that hardware controller could support with on-chip PHY
  #define CFG_TUD_MAX_SPEED     BOARD_TUD_MAX_SPEED
  
  // CFG_TUSB_DEBUG is defined by compiler in DEBUG build
  // #define CFG_TUSB_DEBUG           0
  
  /* 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_AUDIO             1
  #define CFG_TUD_CDC               0
  #define CFG_TUD_MSC               0
  #define CFG_TUD_HID               0
  #define CFG_TUD_MIDI              0
  #define CFG_TUD_VENDOR            0
  
  //--------------------------------------------------------------------
  // AUDIO CLASS DRIVER CONFIGURATION
  //--------------------------------------------------------------------
  
  // Have a look into audio_device.h for all configurations
  
  #define CFG_TUD_AUDIO_FUNC_1_DESC_LEN                                 TUD_AUDIO_MIC_ONE_CH_DESC_LEN
  #define CFG_TUD_AUDIO_FUNC_1_N_AS_INT                                 1                                       // 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_FUNC_1_CTRL_BUF_SZ                              64                                      // Size of control request buffer
  
  #define CFG_TUD_AUDIO_ENABLE_EP_IN                                    1
  #define CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX                    2                                       // Driver gets this info from the descriptors - we define it here to use it to setup the descriptors and to do calculations with it below
  #define CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX                            1                                       // Driver gets this info from the descriptors - we define it here to use it to setup the descriptors and to do calculations with it below - be aware: for different number of channels you need another descriptor!
  #define CFG_TUD_AUDIO_EP_SZ_IN                                        48 * CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX * CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX      // 48 Samples (48 kHz) x 2 Bytes/Sample x 1 Channel
  #define CFG_TUD_AUDIO_FUNC_1_EP_IN_SZ_MAX                             CFG_TUD_AUDIO_EP_SZ_IN                  // Maximum EP IN size for all AS alternate settings used
  #define CFG_TUD_AUDIO_FUNC_1_EP_IN_SW_BUF_SZ                          CFG_TUD_AUDIO_EP_SZ_IN + 1
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* _TUSB_CONFIG_H_ */
  