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Generalize audio driver for 3 audio functions plus a lot more.

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- Audio format and parameters are parsed from descriptors thus user no
longer needs to give them explicitely

- Tested for 4 channel software type I PCM encoding with 16 bit with 1
channel per FIFO and 2 channels per FIFO (this is I2S specific)
This commit is contained in:
Reinhard Panhuber
2021-04-03 09:49:27 +02:00
parent 994dddc231
commit 9b2ddd9cc6
10 changed files with 1221 additions and 410 deletions
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8
examples/device/audio_test/src/main.c
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@@ -53,17 +53,17 @@ static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED;
// Audio controls
// Current states
bool mute[CFG_TUD_AUDIO_N_CHANNELS_TX + 1]; // +1 for master channel 0
uint16_t volume[CFG_TUD_AUDIO_N_CHANNELS_TX + 1]; // +1 for master channel 0
bool mute[CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX + 1]; // +1 for master channel 0
uint16_t volume[CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX + 1]; // +1 for master channel 0
uint32_t sampFreq;
uint8_t clkValid;
// Range states
audio_control_range_2_n_t(1) volumeRng[CFG_TUD_AUDIO_N_CHANNELS_TX+1]; // Volume range state
audio_control_range_2_n_t(1) volumeRng[CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_TX+1]; // Volume range state
audio_control_range_4_n_t(1) sampleFreqRng; // Sample frequency range state
// Audio test data
uint16_t test_buffer_audio[CFG_TUD_AUDIO_EPSIZE_IN/2];
uint16_t test_buffer_audio[CFG_TUD_AUDIO_EP_SZ_IN/2];
uint16_t startVal = 0;
void led_blinking_task(void);