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Complete redesign of audio driver.

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This commit is contained in:
Reinhard Panhuber
2021-02-12 16:28:41 +01:00
parent 84406f1654
commit a9fd0a454a
7 changed files with 242 additions and 400 deletions
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7
examples/device/audio_test/src/tusb_config.h
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@@ -90,7 +90,6 @@ extern "C" {
//--------------------------------------------------------------------
// Audio format type
#define CFG_TUD_AUDIO_USE_TX_FIFO 1
#define CFG_TUD_AUDIO_FORMAT_TYPE_TX AUDIO_FORMAT_TYPE_I
#define CFG_TUD_AUDIO_FORMAT_TYPE_RX AUDIO_FORMAT_TYPE_UNDEFINED
@@ -100,11 +99,11 @@ extern "C" {
#define CFG_TUD_AUDIO_N_BYTES_PER_SAMPLE_TX 2
// 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 48*CFG_TUD_AUDIO_N_BYTES_PER_SAMPLE_TX*CFG_TUD_AUDIO_N_CHANNELS_TX // 48 Samples (48 kHz) x 2 Bytes/Sample x 1 Channels
#define CFG_TUD_AUDIO_TX_FIFO_SIZE 48*2 // 48 Samples (48 kHz) x 2 Bytes/Sample (1/2 word)
#define CFG_TUD_AUDIO_EPSIZE_IN 48*CFG_TUD_AUDIO_N_BYTES_PER_SAMPLE_TX*CFG_TUD_AUDIO_N_CHANNELS_TX // 48 Samples (48 kHz) x 2 Bytes/Sample x 1 Channels
#define CFG_TUD_AUDIO_EP_IN_SW_BUFFER_SIZE CFG_TUD_AUDIO_EPSIZE_IN + 1; // Just for safety one sample more space
// 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
#define CFG_TUD_AUDIO_N_AS_INT 1
// Size of control request buffer
#define CFG_TUD_AUDIO_CTRL_BUF_SIZE 64