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Tested 3 bytes feedback work on OSX.

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HiFiPhile 2024-05-12 14:03:29 +02:00
parent df6740353f
commit 32d0baaaf8
1 changed files with 5 additions and 4 deletions
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9
src/class/audio/audio_device.c
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@ -1216,7 +1216,7 @@ static uint16_t audiod_encode_type_I_pcm(uint8_t rhport, audiod_function_t* audi
#if CFG_TUD_AUDIO_ENABLE_EP_OUT && CFG_TUD_AUDIO_ENABLE_FEEDBACK_EP #if CFG_TUD_AUDIO_ENABLE_EP_OUT && CFG_TUD_AUDIO_ENABLE_FEEDBACK_EP
static inline bool audiod_fb_send(audiod_function_t *audio) static inline bool audiod_fb_send(audiod_function_t *audio)
{ {
bool apply_correction = TUSB_SPEED_FULL == tud_speed_get() && audio->feedback.format_correction; bool apply_correction = (TUSB_SPEED_FULL == tud_speed_get()) && audio->feedback.format_correction;
// Format the feedback value // Format the feedback value
if (apply_correction) if (apply_correction)
{ {
@ -1226,6 +1226,7 @@ static inline bool audiod_fb_send(audiod_function_t *audio)
*(fb++) = (audio->feedback.value >> 2) & 0xFF; *(fb++) = (audio->feedback.value >> 2) & 0xFF;
*(fb++) = (audio->feedback.value >> 10) & 0xFF; *(fb++) = (audio->feedback.value >> 10) & 0xFF;
*(fb++) = (audio->feedback.value >> 18) & 0xFF; *(fb++) = (audio->feedback.value >> 18) & 0xFF;
*fb = 0;
} else } else
{ {
audio->feedback.send_buf = audio->feedback.value; audio->feedback.send_buf = audio->feedback.value;
@ -1241,10 +1242,10 @@ static inline bool audiod_fb_send(audiod_function_t *audio)
// 10.14 4 4 Linux // 10.14 4 4 Linux
// 10.14 4 3 Linux // 10.14 4 3 Linux
// 10.14 3 4 Linux, OSX // 10.14 3 4 Linux, OSX
// 10.14 3 3 Linux // 10.14 3 3 Linux, OSX
// //
// OSX requires wMaxPacketSize=3 while sending 4 bytes (WTF ?!), so we still send 4 bytes even of correction is applied // We send 3 bytes since sending packet larger than wMaxPacketSize is pretty ugly
return usbd_edpt_xfer(audio->rhport, audio->ep_fb, (uint8_t *) &audio->feedback.send_buf, 4); return usbd_edpt_xfer(audio->rhport, audio->ep_fb, (uint8_t *) &audio->feedback.send_buf, apply_correction ? 3 : 4);
} }
#endif #endif