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author | joeycastillo <joeycastillo@utexas.edu> | 2021-12-08 15:52:07 -0500 |
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committer | GitHub <noreply@github.com> | 2021-12-08 15:52:07 -0500 |
commit | c0d02ceddd233ccccd4926b6eb5b6fe54771aac0 (patch) | |
tree | 88c257f6b70111b4ae09fd8518e38e9197cd2a4e /tinyusb/examples/device/audio_4_channel_mic/src/main.c | |
parent | c25b6929cd4a3db9daa33738350b969ec590cd28 (diff) | |
parent | d33d3fbd51253e3e072186a71959fdf97c8d2e75 (diff) | |
download | Sensor-Watch-c0d02ceddd233ccccd4926b6eb5b6fe54771aac0.tar.gz Sensor-Watch-c0d02ceddd233ccccd4926b6eb5b6fe54771aac0.tar.bz2 Sensor-Watch-c0d02ceddd233ccccd4926b6eb5b6fe54771aac0.zip |
Merge pull request #25 from willianpaixao/add-submodules
Add tinyusb as git submodules
Diffstat (limited to 'tinyusb/examples/device/audio_4_channel_mic/src/main.c')
m--------- | tinyusb | 0 | ||||
-rwxr-xr-x | tinyusb/examples/device/audio_4_channel_mic/src/main.c | 458 |
2 files changed, 0 insertions, 458 deletions
diff --git a/tinyusb b/tinyusb new file mode 160000 +Subproject f8288be03f28ad7b944e6925f49422dfa39202c diff --git a/tinyusb/examples/device/audio_4_channel_mic/src/main.c b/tinyusb/examples/device/audio_4_channel_mic/src/main.c deleted file mode 100755 index 983b87e5..00000000 --- a/tinyusb/examples/device/audio_4_channel_mic/src/main.c +++ /dev/null @@ -1,458 +0,0 @@ -/* - * The MIT License (MIT) - * - * Copyright (c) 2020 Reinhard Panhuber - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN - * THE SOFTWARE. - * - */ - -/* plot_audio_samples.py requires following modules: - * $ sudo apt install libportaudio - * $ pip3 install sounddevice matplotlib - * - * Then run - * $ python3 plot_audio_samples.py - */ - -#include <stdlib.h> -#include <stdio.h> -#include <string.h> - -#include "bsp/board.h" -#include "tusb.h" - -//--------------------------------------------------------------------+ -// MACRO CONSTANT TYPEDEF PROTYPES -//--------------------------------------------------------------------+ - -#ifndef AUDIO_SAMPLE_RATE -#define AUDIO_SAMPLE_RATE 48000 -#endif - -/* Blink pattern - * - 250 ms : device not mounted - * - 1000 ms : device mounted - * - 2500 ms : device is suspended - */ -enum { - BLINK_NOT_MOUNTED = 250, - BLINK_MOUNTED = 1000, - BLINK_SUSPENDED = 2500, -}; - -static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED; - -// Audio controls -// Current states -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_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 i2s_dummy_buffer[CFG_TUD_AUDIO_FUNC_1_N_TX_SUPP_SW_FIFO][CFG_TUD_AUDIO_FUNC_1_TX_SUPP_SW_FIFO_SZ/2]; // Ensure half word aligned - -void led_blinking_task(void); -void audio_task(void); - -/*------------- MAIN -------------*/ -int main(void) -{ - board_init(); - - tusb_init(); - - // Init values - sampFreq = AUDIO_SAMPLE_RATE; - clkValid = 1; - - sampleFreqRng.wNumSubRanges = 1; - sampleFreqRng.subrange[0].bMin = AUDIO_SAMPLE_RATE; - sampleFreqRng.subrange[0].bMax = AUDIO_SAMPLE_RATE; - sampleFreqRng.subrange[0].bRes = 0; - - while (1) - { - tud_task(); // tinyusb device task - led_blinking_task(); - audio_task(); - } - - - return 0; -} - -//--------------------------------------------------------------------+ -// Device callbacks -//--------------------------------------------------------------------+ - -// Invoked when device is mounted -void tud_mount_cb(void) -{ - blink_interval_ms = BLINK_MOUNTED; -} - -// Invoked when device is unmounted -void tud_umount_cb(void) -{ - blink_interval_ms = BLINK_NOT_MOUNTED; -} - -// Invoked when usb bus is suspended -// remote_wakeup_en : if host allow us to perform remote wakeup -// Within 7ms, device must draw an average of current less than 2.5 mA from bus -void tud_suspend_cb(bool remote_wakeup_en) -{ - (void) remote_wakeup_en; - blink_interval_ms = BLINK_SUSPENDED; -} - -// Invoked when usb bus is resumed -void tud_resume_cb(void) -{ - blink_interval_ms = BLINK_MOUNTED; -} - -//--------------------------------------------------------------------+ -// AUDIO Task -//--------------------------------------------------------------------+ - -void audio_task(void) -{ - // Yet to be filled - e.g. put meas data into TX FIFOs etc. - asm("nop"); -} - -//--------------------------------------------------------------------+ -// Application Callback API Implementations -//--------------------------------------------------------------------+ - -// 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; - - // We do not support any set range requests here, only current value requests - TU_VERIFY(p_request->bRequest == AUDIO_CS_REQ_CUR); - - // Page 91 in UAC2 specification - uint8_t channelNum = TU_U16_LOW(p_request->wValue); - uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue); - uint8_t ep = TU_U16_LOW(p_request->wIndex); - - (void) channelNum; (void) ctrlSel; (void) ep; - - return false; // Yet not implemented -} - -// Invoked when audio class specific set request received for an interface -bool tud_audio_set_req_itf_cb(uint8_t rhport, tusb_control_request_t const * p_request, uint8_t *pBuff) -{ - (void) rhport; - (void) pBuff; - - // We do not support any set range requests here, only current value requests - TU_VERIFY(p_request->bRequest == AUDIO_CS_REQ_CUR); - - // Page 91 in UAC2 specification - uint8_t channelNum = TU_U16_LOW(p_request->wValue); - uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue); - uint8_t itf = TU_U16_LOW(p_request->wIndex); - - (void) channelNum; (void) ctrlSel; (void) itf; - - 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 *pBuff) -{ - (void) rhport; - - // Page 91 in UAC2 specification - uint8_t channelNum = TU_U16_LOW(p_request->wValue); - uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue); - uint8_t itf = TU_U16_LOW(p_request->wIndex); - uint8_t entityID = TU_U16_HIGH(p_request->wIndex); - - (void) itf; - - // We do not support any set range requests here, only current value requests - TU_VERIFY(p_request->bRequest == AUDIO_CS_REQ_CUR); - - // If request is for our feature unit - if ( entityID == 2 ) - { - switch ( ctrlSel ) - { - case AUDIO_FU_CTRL_MUTE: - // Request uses format layout 1 - TU_VERIFY(p_request->wLength == sizeof(audio_control_cur_1_t)); - - mute[channelNum] = ((audio_control_cur_1_t*) pBuff)->bCur; - - TU_LOG2(" Set Mute: %d of channel: %u\r\n", mute[channelNum], channelNum); - return true; - - case AUDIO_FU_CTRL_VOLUME: - // Request uses format layout 2 - TU_VERIFY(p_request->wLength == sizeof(audio_control_cur_2_t)); - - volume[channelNum] = ((audio_control_cur_2_t*) pBuff)->bCur; - - TU_LOG2(" Set Volume: %d dB of channel: %u\r\n", volume[channelNum], channelNum); - return true; - - // Unknown/Unsupported control - default: - TU_BREAKPOINT(); - return false; - } - } - 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; - - // Page 91 in UAC2 specification - uint8_t channelNum = TU_U16_LOW(p_request->wValue); - uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue); - uint8_t ep = TU_U16_LOW(p_request->wIndex); - - (void) channelNum; (void) ctrlSel; (void) ep; - - // return tud_control_xfer(rhport, p_request, &tmp, 1); - - return false; // Yet not implemented -} - -// Invoked when audio class specific get request received for an interface -bool tud_audio_get_req_itf_cb(uint8_t rhport, tusb_control_request_t const * p_request) -{ - (void) rhport; - - // Page 91 in UAC2 specification - uint8_t channelNum = TU_U16_LOW(p_request->wValue); - uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue); - uint8_t itf = TU_U16_LOW(p_request->wIndex); - - (void) channelNum; (void) ctrlSel; (void) itf; - - return false; // Yet not implemented -} - -// 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; - - // Page 91 in UAC2 specification - uint8_t channelNum = TU_U16_LOW(p_request->wValue); - uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue); - // uint8_t itf = TU_U16_LOW(p_request->wIndex); // Since we have only one audio function implemented, we do not need the itf value - uint8_t entityID = TU_U16_HIGH(p_request->wIndex); - - // Input terminal (Microphone input) - if (entityID == 1) - { - switch ( ctrlSel ) - { - case AUDIO_TE_CTRL_CONNECTOR: - { - // The terminal connector control only has a get request with only the CUR attribute. - audio_desc_channel_cluster_t ret; - - // Those are dummy values for now - ret.bNrChannels = 1; - ret.bmChannelConfig = 0; - ret.iChannelNames = 0; - - TU_LOG2(" Get terminal connector\r\n"); - - return tud_audio_buffer_and_schedule_control_xfer(rhport, p_request, (void*) &ret, sizeof(ret)); - } - break; - - // Unknown/Unsupported control selector - default: - TU_BREAKPOINT(); - return false; - } - } - - // Feature unit - if (entityID == 2) - { - switch ( ctrlSel ) - { - case AUDIO_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_control_xfer(rhport, p_request, &mute[channelNum], 1); - - case AUDIO_FU_CTRL_VOLUME: - switch ( p_request->bRequest ) - { - case AUDIO_CS_REQ_CUR: - TU_LOG2(" Get Volume of channel: %u\r\n", channelNum); - return tud_control_xfer(rhport, p_request, &volume[channelNum], sizeof(volume[channelNum])); - - case AUDIO_CS_REQ_RANGE: - TU_LOG2(" Get Volume range of channel: %u\r\n", channelNum); - - // Copy values - only for testing - better is version below - audio_control_range_2_n_t(1) - ret; - - ret.wNumSubRanges = 1; - ret.subrange[0].bMin = -90; // -90 dB - ret.subrange[0].bMax = 90; // +90 dB - ret.subrange[0].bRes = 1; // 1 dB steps - - return tud_audio_buffer_and_schedule_control_xfer(rhport, p_request, (void*) &ret, sizeof(ret)); - - // Unknown/Unsupported control - default: - TU_BREAKPOINT(); - return false; - } - break; - - // Unknown/Unsupported control - default: - TU_BREAKPOINT(); - return false; - } - } - - // Clock Source unit - if ( entityID == 4 ) - { - switch ( ctrlSel ) - { - case AUDIO_CS_CTRL_SAM_FREQ: - // channelNum is always zero in this case - switch ( p_request->bRequest ) - { - case AUDIO_CS_REQ_CUR: - TU_LOG2(" Get Sample Freq.\r\n"); - return tud_control_xfer(rhport, p_request, &sampFreq, sizeof(sampFreq)); - - case AUDIO_CS_REQ_RANGE: - TU_LOG2(" Get Sample Freq. range\r\n"); - return tud_control_xfer(rhport, p_request, &sampleFreqRng, sizeof(sampleFreqRng)); - - // Unknown/Unsupported control - default: - TU_BREAKPOINT(); - return false; - } - break; - - case AUDIO_CS_CTRL_CLK_VALID: - // Only cur attribute exists for this request - TU_LOG2(" Get Sample Freq. valid\r\n"); - return tud_control_xfer(rhport, p_request, &clkValid, sizeof(clkValid)); - - // Unknown/Unsupported control - default: - TU_BREAKPOINT(); - return false; - } - } - - TU_LOG2(" Unsupported entity: %d\r\n", entityID); - return false; // Yet not implemented -} - -bool tud_audio_tx_done_pre_load_cb(uint8_t rhport, uint8_t itf, uint8_t ep_in, uint8_t cur_alt_setting) -{ - (void) rhport; - (void) itf; - (void) ep_in; - (void) cur_alt_setting; - - for (uint8_t cnt=0; cnt < CFG_TUD_AUDIO_FUNC_1_N_TX_SUPP_SW_FIFO; cnt++) - { - tud_audio_write_support_ff(cnt, i2s_dummy_buffer[cnt], AUDIO_SAMPLE_RATE/1000 * CFG_TUD_AUDIO_FUNC_1_N_BYTES_PER_SAMPLE_TX * CFG_TUD_AUDIO_FUNC_1_CHANNEL_PER_FIFO_TX); - } - - return true; -} - -bool tud_audio_tx_done_post_load_cb(uint8_t rhport, uint16_t n_bytes_copied, uint8_t itf, uint8_t ep_in, uint8_t cur_alt_setting) -{ - (void) rhport; - (void) n_bytes_copied; - (void) itf; - (void) ep_in; - (void) cur_alt_setting; - - uint16_t dataVal; - - // Generate dummy data - for (uint16_t cnt = 0; cnt < CFG_TUD_AUDIO_FUNC_1_N_TX_SUPP_SW_FIFO; cnt++) - { - uint16_t * p_buff = i2s_dummy_buffer[cnt]; // 2 bytes per sample - dataVal = 1; - for (uint16_t cnt2 = 0; cnt2 < AUDIO_SAMPLE_RATE/1000; cnt2++) - { - for (uint8_t cnt3 = 0; cnt3 < CFG_TUD_AUDIO_FUNC_1_CHANNEL_PER_FIFO_TX; cnt3++) - { - *p_buff++ = dataVal; - } - dataVal++; - } - } - return true; -} - -bool tud_audio_set_itf_close_EP_cb(uint8_t rhport, tusb_control_request_t const * p_request) -{ - (void) rhport; - (void) p_request; - - return true; -} - -//--------------------------------------------------------------------+ -// BLINKING TASK -//--------------------------------------------------------------------+ -void led_blinking_task(void) -{ - static uint32_t start_ms = 0; - static bool led_state = false; - - // Blink every interval ms - if ( board_millis() - start_ms < blink_interval_ms) return; // not enough time - start_ms += blink_interval_ms; - - board_led_write(led_state); - led_state = 1 - led_state; // toggle -} |