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Fix #define errors in audio_device.h

This commit is contained in:
Reinhard Panhuber 2021-04-03 15:24:38 +02:00
parent 40b2ffcb52
commit 8b90c08b35
1 changed files with 17 additions and 6 deletions
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23
src/class/audio/audio_device.h
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@ -153,25 +153,33 @@
#error EP software buffer size MUST BE at least as big as maximum EP size
#endif
#if CFG_TUD_AUDIO > 1
#if CFG_TUD_AUDIO_FUNC_2_EP_IN_SW_BUF_SZ < CFG_TUD_AUDIO_FUNC_2_EP_IN_SZ_MAX
#error EP software buffer size MUST BE at least as big as maximum EP size
#endif
#endif
#if CFG_TUD_AUDIO > 2
#if CFG_TUD_AUDIO_FUNC_3_EP_IN_SW_BUF_SZ < CFG_TUD_AUDIO_FUNC_3_EP_IN_SZ_MAX
#error EP software buffer size MUST BE at least as big as maximum EP size
#endif
#endif
#if CFG_TUD_AUDIO_FUNC_1_EP_OUT_SW_BUF_SZ < CFG_TUD_AUDIO_FUNC_1_EP_OUT_SZ_MAX
#error EP software buffer size MUST BE at least as big as maximum EP size
#endif
#if CFG_TUD_AUDIO > 1
#if CFG_TUD_AUDIO_FUNC_2_EP_OUT_SW_BUF_SZ < CFG_TUD_AUDIO_FUNC_2_EP_OUT_SZ_MAX
#error EP software buffer size MUST BE at least as big as maximum EP size
#endif
#endif
#if CFG_TUD_AUDIO > 2
#if CFG_TUD_AUDIO_FUNC_3_EP_OUT_SW_BUF_SZ < CFG_TUD_AUDIO_FUNC_3_EP_OUT_SZ_MAX
#error EP software buffer size MUST BE at least as big as maximum EP size
#endif
#endif
// Enable/disable feedback EP (required for asynchronous RX applications)
#ifndef CFG_TUD_AUDIO_ENABLE_FEEDBACK_EP
@ -187,13 +195,16 @@
#define CFG_TUD_AUDIO_INT_CTR_EP_IN_SW_BUFFER_SIZE 6 // Buffer size of audio control interrupt EP - 6 Bytes according to UAC 2 specification (p. 74)
#endif
// Use of TX/RX support FIFOs
// Use software encoding/decoding
// Support FIFOs are not mandatory for the audio driver, rather they are intended to be of use in
// - TX case: CFG_TUD_AUDIO_N_CHANNELS_TX channels need to be encoded into one USB output stream (currently PCM type I is implemented)
// - RX case: CFG_TUD_AUDIO_N_CHANNELS_RX channels need to be decoded from a single USB input stream (currently PCM type I is implemented)
// The software coding feature of the driver is not mandatory. It is useful if, for instance, you have two I2S streams which need to be interleaved
// into a single PCM stream as SAMPLE_1 | SAMPLE_2 | SAMPLE_3 | SAMPLE_4.
//
// This encoding/decoding is done in software and thus time consuming. If you can encode/decode your stream more efficiently do not use the
// Currently, only PCM type I encoding/decoding is supported!
//
// If the coding feature is to be used, support FIFOs need to be configured. Their sizes and numbers are defined below.
// Encoding/decoding is done in software and thus time consuming. If you can encode/decode your stream more efficiently do not use the
// support FIFOs but write/read directly into/from the EP_X_SW_BUFFER_FIFOs using
// - tud_audio_n_write() or
// - tud_audio_n_read().
@ -223,7 +234,7 @@
// functions.
// Enable encoding/decodings - for these to work, support FIFOs need to be setup in appropriate numbers and size
// The actual parameters of active encoding is parsed from the descriptors
// The actual coding parameters of active AS alternate interface is parsed from the descriptors
// For PCM encoding/decoding