diff options
Diffstat (limited to 'examples/device/uac2_speaker_fb/src/main.c')
| -rw-r--r-- | examples/device/uac2_speaker_fb/src/main.c | 367 |
1 files changed, 287 insertions, 80 deletions
diff --git a/examples/device/uac2_speaker_fb/src/main.c b/examples/device/uac2_speaker_fb/src/main.c index e742dc52a..f2cfb155e 100644 --- a/examples/device/uac2_speaker_fb/src/main.c +++ b/examples/device/uac2_speaker_fb/src/main.c @@ -31,25 +31,17 @@ #include "tusb.h" #include "usb_descriptors.h" -#ifdef CFG_QUIRK_OS_GUESSING - #include "quirk_os_guessing.h" -#endif - //--------------------------------------------------------------------+ // MACRO CONSTANT TYPEDEF PROTOTYPES //--------------------------------------------------------------------+ -// List of supported sample rates -#if defined(__RX__) -const uint32_t sample_rates[] = {44100, 48000}; -#else +// List of supported sample rates for UAC2 const uint32_t sample_rates[] = {44100, 48000, 88200, 96000}; -#endif - -uint32_t current_sample_rate = 44100; #define N_SAMPLE_RATES TU_ARRAY_SIZE(sample_rates) +uint32_t current_sample_rate = 44100; + /* Blink pattern * - 25 ms : streaming data * - 250 ms : device not mounted @@ -82,7 +74,7 @@ static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED; // Audio controls // Current states -int8_t mute[CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX + 1]; // +1 for master channel 0 +uint8_t mute[CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX + 1]; // +1 for master channel 0 int16_t volume[CFG_TUD_AUDIO_FUNC_1_N_CHANNELS_RX + 1];// +1 for master channel 0 // Buffer for speaker data @@ -153,18 +145,189 @@ void tud_resume_cb(void) { // Application Callback API Implementations //--------------------------------------------------------------------+ -// Helper for clock get requests -static bool tud_audio_clock_get_request(uint8_t rhport, audio_control_request_t const *request) { +//--------------------------------------------------------------------+ +// UAC1 Helper Functions +//--------------------------------------------------------------------+ + +static bool audio10_set_req_ep(tusb_control_request_t const *p_request, uint8_t *pBuff) { + uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue); + + switch (ctrlSel) { + case AUDIO10_EP_CTRL_SAMPLING_FREQ: + if (p_request->bRequest == AUDIO10_CS_REQ_SET_CUR) { + // Request uses 3 bytes + TU_VERIFY(p_request->wLength == 3); + + current_sample_rate = tu_unaligned_read32(pBuff) & 0x00FFFFFF; + + TU_LOG2("EP set current freq: %" PRIu32 "\r\n", current_sample_rate); + + return true; + } + break; + + // Unknown/Unsupported control + default: + TU_BREAKPOINT(); + return false; + } + + return false; +} + +static bool audio10_get_req_ep(uint8_t rhport, tusb_control_request_t const *p_request) { + uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue); + + switch (ctrlSel) { + case AUDIO10_EP_CTRL_SAMPLING_FREQ: + if (p_request->bRequest == AUDIO10_CS_REQ_GET_CUR) { + TU_LOG2("EP get current freq\r\n"); + + uint8_t freq[3]; + freq[0] = (uint8_t) (current_sample_rate & 0xFF); + freq[1] = (uint8_t) ((current_sample_rate >> 8) & 0xFF); + freq[2] = (uint8_t) ((current_sample_rate >> 16) & 0xFF); + return tud_audio_buffer_and_schedule_control_xfer(rhport, p_request, freq, sizeof(freq)); + } + break; + + // Unknown/Unsupported control + default: + TU_BREAKPOINT(); + return false; + } + + return false; +} + +static bool audio10_set_req_entity(tusb_control_request_t const *p_request, uint8_t *pBuff) { + uint8_t channelNum = TU_U16_LOW(p_request->wValue); + uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue); + uint8_t entityID = TU_U16_HIGH(p_request->wIndex); + + // If request is for our feature unit + if (entityID == UAC1_ENTITY_FEATURE_UNIT) { + switch (ctrlSel) { + case AUDIO10_FU_CTRL_MUTE: + switch (p_request->bRequest) { + case AUDIO10_CS_REQ_SET_CUR: + // Only 1st form is supported + TU_VERIFY(p_request->wLength == 1); + + mute[channelNum] = pBuff[0]; + + TU_LOG2(" Set Mute: %d of channel: %u\r\n", mute[channelNum], channelNum); + return true; + + default: + return false; // not supported + } + + case AUDIO10_FU_CTRL_VOLUME: + switch (p_request->bRequest) { + case AUDIO10_CS_REQ_SET_CUR: + // Only 1st form is supported + TU_VERIFY(p_request->wLength == 2); + + volume[channelNum] = (int16_t)tu_unaligned_read16(pBuff) / 256; + + TU_LOG2(" Set Volume: %d dB of channel: %u\r\n", volume[channelNum], channelNum); + return true; + + default: + return false; // not supported + } + + // Unknown/Unsupported control + default: + TU_BREAKPOINT(); + return false; + } + } + + return false; +} + +static bool audio10_get_req_entity(uint8_t rhport, tusb_control_request_t const *p_request) { + uint8_t channelNum = TU_U16_LOW(p_request->wValue); + uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue); + uint8_t entityID = TU_U16_HIGH(p_request->wIndex); + + // If request is for our feature unit + if (entityID == UAC1_ENTITY_FEATURE_UNIT) { + switch (ctrlSel) { + case AUDIO10_FU_CTRL_MUTE: + // Audio control mute cur parameter block consists of only one byte - we thus can send it right away + // There does not exist a range parameter block for mute + TU_LOG2(" Get Mute of channel: %u\r\n", channelNum); + return tud_audio_buffer_and_schedule_control_xfer(rhport, p_request, &mute[channelNum], 1); + + case AUDIO10_FU_CTRL_VOLUME: + switch (p_request->bRequest) { + case AUDIO10_CS_REQ_GET_CUR: + TU_LOG2(" Get Volume of channel: %u\r\n", channelNum); + { + int16_t vol = (int16_t) volume[channelNum]; + vol = vol * 256; // convert to 1/256 dB units + return tud_audio_buffer_and_schedule_control_xfer(rhport, p_request, &vol, sizeof(vol)); + } + + case AUDIO10_CS_REQ_GET_MIN: + TU_LOG2(" Get Volume min of channel: %u\r\n", channelNum); + { + int16_t min = -90; // -90 dB + min = min * 256; // convert to 1/256 dB units + return tud_audio_buffer_and_schedule_control_xfer(rhport, p_request, &min, sizeof(min)); + } + + case AUDIO10_CS_REQ_GET_MAX: + TU_LOG2(" Get Volume max of channel: %u\r\n", channelNum); + { + int16_t max = 30; // +30 dB + max = max * 256; // convert to 1/256 dB units + return tud_audio_buffer_and_schedule_control_xfer(rhport, p_request, &max, sizeof(max)); + } + + case AUDIO10_CS_REQ_GET_RES: + TU_LOG2(" Get Volume res of channel: %u\r\n", channelNum); + { + int16_t res = 128; // 0.5 dB + return tud_audio_buffer_and_schedule_control_xfer(rhport, p_request, &res, sizeof(res)); + } + // Unknown/Unsupported control + default: + TU_BREAKPOINT(); + return false; + } + break; + + // Unknown/Unsupported control + default: + TU_BREAKPOINT(); + return false; + } + } + + return false; +} + +//--------------------------------------------------------------------+ +// UAC2 Helper Functions +//--------------------------------------------------------------------+ + +#if TUD_OPT_HIGH_SPEED + +static bool audio20_clock_get_request(uint8_t rhport, audio20_control_request_t const *request) { TU_ASSERT(request->bEntityID == UAC2_ENTITY_CLOCK); - if (request->bControlSelector == AUDIO_CS_CTRL_SAM_FREQ) { - if (request->bRequest == AUDIO_CS_REQ_CUR) { + if (request->bControlSelector == AUDIO20_CS_CTRL_SAM_FREQ) { + if (request->bRequest == AUDIO20_CS_REQ_CUR) { TU_LOG1("Clock get current freq %" PRIu32 "\r\n", current_sample_rate); - audio_control_cur_4_t curf = {(int32_t) tu_htole32(current_sample_rate)}; + audio20_control_cur_4_t curf = {(int32_t) tu_htole32(current_sample_rate)}; return tud_audio_buffer_and_schedule_control_xfer(rhport, (tusb_control_request_t const *) request, &curf, sizeof(curf)); - } else if (request->bRequest == AUDIO_CS_REQ_RANGE) { - audio_control_range_4_n_t(N_SAMPLE_RATES) rangef = + } else if (request->bRequest == AUDIO20_CS_REQ_RANGE) { + audio20_control_range_4_n_t(N_SAMPLE_RATES) rangef = { .wNumSubRanges = tu_htole16(N_SAMPLE_RATES)}; TU_LOG1("Clock get %d freq ranges\r\n", N_SAMPLE_RATES); @@ -177,9 +340,9 @@ static bool tud_audio_clock_get_request(uint8_t rhport, audio_control_request_t return tud_audio_buffer_and_schedule_control_xfer(rhport, (tusb_control_request_t const *) request, &rangef, sizeof(rangef)); } - } else if (request->bControlSelector == AUDIO_CS_CTRL_CLK_VALID && - request->bRequest == AUDIO_CS_REQ_CUR) { - audio_control_cur_1_t cur_valid = {.bCur = 1}; + } else if (request->bControlSelector == AUDIO20_CS_CTRL_CLK_VALID && + request->bRequest == AUDIO20_CS_REQ_CUR) { + audio20_control_cur_1_t cur_valid = {.bCur = 1}; TU_LOG1("Clock get is valid %u\r\n", cur_valid.bCur); return tud_audio_buffer_and_schedule_control_xfer(rhport, (tusb_control_request_t const *) request, &cur_valid, sizeof(cur_valid)); } @@ -188,17 +351,14 @@ static bool tud_audio_clock_get_request(uint8_t rhport, audio_control_request_t return false; } -// Helper for clock set requests -static bool tud_audio_clock_set_request(uint8_t rhport, audio_control_request_t const *request, uint8_t const *buf) { - (void) rhport; - +static bool audio20_clock_set_request(audio20_control_request_t const *request, uint8_t const *buf) { TU_ASSERT(request->bEntityID == UAC2_ENTITY_CLOCK); - TU_VERIFY(request->bRequest == AUDIO_CS_REQ_CUR); + TU_VERIFY(request->bRequest == AUDIO20_CS_REQ_CUR); - if (request->bControlSelector == AUDIO_CS_CTRL_SAM_FREQ) { - TU_VERIFY(request->wLength == sizeof(audio_control_cur_4_t)); + if (request->bControlSelector == AUDIO20_CS_CTRL_SAM_FREQ) { + TU_VERIFY(request->wLength == sizeof(audio20_control_cur_4_t)); - current_sample_rate = (uint32_t) ((audio_control_cur_4_t const *) buf)->bCur; + current_sample_rate = (uint32_t) ((audio20_control_cur_4_t const *) buf)->bCur; TU_LOG1("Clock set current freq: %" PRIu32 "\r\n", current_sample_rate); @@ -210,24 +370,23 @@ static bool tud_audio_clock_set_request(uint8_t rhport, audio_control_request_t } } -// Helper for feature unit get requests -static bool tud_audio_feature_unit_get_request(uint8_t rhport, audio_control_request_t const *request) { +static bool audio20_feature_unit_get_request(uint8_t rhport, audio20_control_request_t const *request) { TU_ASSERT(request->bEntityID == UAC2_ENTITY_FEATURE_UNIT); - if (request->bControlSelector == AUDIO_FU_CTRL_MUTE && request->bRequest == AUDIO_CS_REQ_CUR) { - audio_control_cur_1_t mute1 = {.bCur = mute[request->bChannelNumber]}; + if (request->bControlSelector == AUDIO20_FU_CTRL_MUTE && request->bRequest == AUDIO20_CS_REQ_CUR) { + audio20_control_cur_1_t mute1 = {.bCur = mute[request->bChannelNumber]}; TU_LOG1("Get channel %u mute %d\r\n", request->bChannelNumber, mute1.bCur); return tud_audio_buffer_and_schedule_control_xfer(rhport, (tusb_control_request_t const *) request, &mute1, sizeof(mute1)); - } else if (request->bControlSelector == AUDIO_FU_CTRL_VOLUME) { - if (request->bRequest == AUDIO_CS_REQ_RANGE) { - audio_control_range_2_n_t(1) range_vol = { + } else if (request->bControlSelector == AUDIO20_FU_CTRL_VOLUME) { + if (request->bRequest == AUDIO20_CS_REQ_RANGE) { + audio20_control_range_2_n_t(1) range_vol = { .wNumSubRanges = tu_htole16(1), .subrange[0] = {.bMin = tu_htole16(-VOLUME_CTRL_50_DB), tu_htole16(VOLUME_CTRL_0_DB), tu_htole16(256)}}; TU_LOG1("Get channel %u volume range (%d, %d, %u) dB\r\n", request->bChannelNumber, range_vol.subrange[0].bMin / 256, range_vol.subrange[0].bMax / 256, range_vol.subrange[0].bRes / 256); return tud_audio_buffer_and_schedule_control_xfer(rhport, (tusb_control_request_t const *) request, &range_vol, sizeof(range_vol)); - } else if (request->bRequest == AUDIO_CS_REQ_CUR) { - audio_control_cur_2_t cur_vol = {.bCur = tu_htole16(volume[request->bChannelNumber])}; + } else if (request->bRequest == AUDIO20_CS_REQ_CUR) { + audio20_control_cur_2_t cur_vol = {.bCur = tu_htole16(volume[request->bChannelNumber])}; TU_LOG1("Get channel %u volume %d dB\r\n", request->bChannelNumber, cur_vol.bCur / 256); return tud_audio_buffer_and_schedule_control_xfer(rhport, (tusb_control_request_t const *) request, &cur_vol, sizeof(cur_vol)); } @@ -238,25 +397,22 @@ static bool tud_audio_feature_unit_get_request(uint8_t rhport, audio_control_req return false; } -// Helper for feature unit set requests -static bool tud_audio_feature_unit_set_request(uint8_t rhport, audio_control_request_t const *request, uint8_t const *buf) { - (void) rhport; - +static bool audio20_feature_unit_set_request(audio20_control_request_t const *request, uint8_t const *buf) { TU_ASSERT(request->bEntityID == UAC2_ENTITY_FEATURE_UNIT); - TU_VERIFY(request->bRequest == AUDIO_CS_REQ_CUR); + TU_VERIFY(request->bRequest == AUDIO20_CS_REQ_CUR); - if (request->bControlSelector == AUDIO_FU_CTRL_MUTE) { - TU_VERIFY(request->wLength == sizeof(audio_control_cur_1_t)); + if (request->bControlSelector == AUDIO20_FU_CTRL_MUTE) { + TU_VERIFY(request->wLength == sizeof(audio20_control_cur_1_t)); - mute[request->bChannelNumber] = ((audio_control_cur_1_t const *) buf)->bCur; + mute[request->bChannelNumber] = ((audio20_control_cur_1_t const *) buf)->bCur; TU_LOG1("Set channel %d Mute: %d\r\n", request->bChannelNumber, mute[request->bChannelNumber]); return true; - } else if (request->bControlSelector == AUDIO_FU_CTRL_VOLUME) { - TU_VERIFY(request->wLength == sizeof(audio_control_cur_2_t)); + } else if (request->bControlSelector == AUDIO20_FU_CTRL_VOLUME) { + TU_VERIFY(request->wLength == sizeof(audio20_control_cur_2_t)); - volume[request->bChannelNumber] = ((audio_control_cur_2_t const *) buf)->bCur; + volume[request->bChannelNumber] = ((audio20_control_cur_2_t const *) buf)->bCur; TU_LOG1("Set channel %d volume: %d dB\r\n", request->bChannelNumber, volume[request->bChannelNumber] / 256); @@ -268,14 +424,13 @@ static bool tud_audio_feature_unit_set_request(uint8_t rhport, audio_control_req } } -// Invoked when audio class specific get request received for an entity -bool tud_audio_get_req_entity_cb(uint8_t rhport, tusb_control_request_t const *p_request) { - audio_control_request_t const *request = (audio_control_request_t const *) p_request; +static bool audio20_get_req_entity(uint8_t rhport, tusb_control_request_t const *p_request) { + audio20_control_request_t const *request = (audio20_control_request_t const *) p_request; if (request->bEntityID == UAC2_ENTITY_CLOCK) - return tud_audio_clock_get_request(rhport, request); + return audio20_clock_get_request(rhport, request); if (request->bEntityID == UAC2_ENTITY_FEATURE_UNIT) - return tud_audio_feature_unit_get_request(rhport, request); + return audio20_feature_unit_get_request(rhport, request); else { TU_LOG1("Get request not handled, entity = %d, selector = %d, request = %d\r\n", request->bEntityID, request->bControlSelector, request->bRequest); @@ -283,31 +438,24 @@ bool tud_audio_get_req_entity_cb(uint8_t rhport, tusb_control_request_t const *p return false; } -// Invoked when audio class specific set request received for an entity -bool tud_audio_set_req_entity_cb(uint8_t rhport, tusb_control_request_t const *p_request, uint8_t *buf) { - audio_control_request_t const *request = (audio_control_request_t const *) p_request; +static bool audio20_set_req_entity(tusb_control_request_t const *p_request, uint8_t *buf) { + audio20_control_request_t const *request = (audio20_control_request_t const *) p_request; if (request->bEntityID == UAC2_ENTITY_FEATURE_UNIT) - return tud_audio_feature_unit_set_request(rhport, request, buf); + return audio20_feature_unit_set_request(request, buf); if (request->bEntityID == UAC2_ENTITY_CLOCK) - return tud_audio_clock_set_request(rhport, request, buf); + return audio20_clock_set_request(request, buf); TU_LOG1("Set request not handled, entity = %d, selector = %d, request = %d\r\n", request->bEntityID, request->bControlSelector, request->bRequest); return false; } -bool tud_audio_set_itf_close_ep_cb(uint8_t rhport, tusb_control_request_t const *p_request) { - (void) rhport; +#endif // TUD_OPT_HIGH_SPEED - uint8_t const itf = tu_u16_low(tu_le16toh(p_request->wIndex)); - uint8_t const alt = tu_u16_low(tu_le16toh(p_request->wValue)); - - if (ITF_NUM_AUDIO_STREAMING == itf && alt == 0) - blink_interval_ms = BLINK_MOUNTED; - - return true; -} +//--------------------------------------------------------------------+ +// Main Callback Functions +//--------------------------------------------------------------------+ bool tud_audio_set_itf_cb(uint8_t rhport, tusb_control_request_t const *p_request) { (void) rhport; @@ -325,6 +473,75 @@ bool tud_audio_set_itf_cb(uint8_t rhport, tusb_control_request_t const *p_reques return true; } +// Invoked when audio class specific set request received for an EP +bool tud_audio_set_req_ep_cb(uint8_t rhport, tusb_control_request_t const *p_request, uint8_t *pBuff) { + (void) rhport; + (void) pBuff; + + if (tud_audio_version() == 1) { + return audio10_set_req_ep(p_request, pBuff); + } else if (tud_audio_version() == 2) { + // We do not support any requests here + } + + return false;// Yet not implemented +} + +// Invoked when audio class specific get request received for an EP +bool tud_audio_get_req_ep_cb(uint8_t rhport, tusb_control_request_t const *p_request) { + (void) rhport; + + if (tud_audio_version() == 1) { + return audio10_get_req_ep(rhport, p_request); + } else if (tud_audio_version() == 2) { + // We do not support any requests here + } + + return false;// Yet not implemented +} + +// Invoked when audio class specific set request received for an entity +bool tud_audio_set_req_entity_cb(uint8_t rhport, tusb_control_request_t const *p_request, uint8_t *buf) { + (void) rhport; + + if (tud_audio_version() == 1) { + return audio10_set_req_entity(p_request, buf); +#if TUD_OPT_HIGH_SPEED + } else if (tud_audio_version() == 2) { + return audio20_set_req_entity(p_request, buf); +#endif + } + + return false; +} + +// Invoked when audio class specific get request received for an entity +bool tud_audio_get_req_entity_cb(uint8_t rhport, tusb_control_request_t const *p_request) { + (void) rhport; + + if (tud_audio_version() == 1) { + return audio10_get_req_entity(rhport, p_request); +#if TUD_OPT_HIGH_SPEED + } else if (tud_audio_version() == 2) { + return audio20_get_req_entity(rhport, p_request); +#endif + } + + return false; +} + +bool tud_audio_set_itf_close_ep_cb(uint8_t rhport, tusb_control_request_t const *p_request) { + (void) rhport; + + uint8_t const itf = tu_u16_low(tu_le16toh(p_request->wIndex)); + uint8_t const alt = tu_u16_low(tu_le16toh(p_request->wValue)); + + if (ITF_NUM_AUDIO_STREAMING == itf && alt == 0) + blink_interval_ms = BLINK_MOUNTED; + + return true; +} + void tud_audio_feedback_params_cb(uint8_t func_id, uint8_t alt_itf, audio_feedback_params_t *feedback_param) { (void) func_id; (void) alt_itf; @@ -349,16 +566,6 @@ bool tud_audio_rx_done_isr(uint8_t rhport, uint16_t n_bytes_received, uint8_t fu } #endif -#if CFG_QUIRK_OS_GUESSING -bool tud_audio_feedback_format_correction_cb(uint8_t func_id) { - (void) func_id; - if (tud_speed_get() == TUSB_SPEED_FULL && quirk_os_guessing_get() == QUIRK_OS_GUESSING_OSX) { - return true; - } else { - return false; - } -} -#endif //--------------------------------------------------------------------+ // AUDIO Task //--------------------------------------------------------------------+ |