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Commit before sharing.
Setup a test example - UNTESTED! Missing: Start transmitting audio data in set_interface.
This commit is contained in:
Reinhard Panhuber
parent
6309364722
commit
c14f68e2c1
12
examples/device/audio_test/Makefile
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12
examples/device/audio_test/Makefile
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@ -0,0 +1,12 @@
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include ../../../tools/top.mk
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include ../../make.mk
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INC += \
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src \
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$(TOP)/hw \
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# Example source
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EXAMPLE_SOURCE += $(wildcard src/*.c)
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SRC_C += $(addprefix $(CURRENT_PATH)/, $(EXAMPLE_SOURCE))
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include ../../rules.mk
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367
examples/device/audio_test/src/main.c
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367
examples/device/audio_test/src/main.c
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@ -0,0 +1,367 @@
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/*
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* The MIT License (MIT)
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*
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* Copyright (c) 2020 Reinhard Panhuber
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "bsp/board.h"
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#include "tusb.h"
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//--------------------------------------------------------------------+
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// MACRO CONSTANT TYPEDEF PROTYPES
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//--------------------------------------------------------------------+
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/* Blink pattern
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* - 250 ms : device not mounted
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* - 1000 ms : device mounted
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* - 2500 ms : device is suspended
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*/
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enum {
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BLINK_NOT_MOUNTED = 250,
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BLINK_MOUNTED = 1000,
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BLINK_SUSPENDED = 2500,
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};
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static uint32_t blink_interval_ms = BLINK_NOT_MOUNTED;
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// Audio controls
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// Current states
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bool mute[CFG_TUD_AUDIO_N_CHANNELS_TX + 1]; // +1 for master channel 0
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uint16_t volume[CFG_TUD_AUDIO_N_CHANNELS_TX + 1]; // +1 for master channel 0
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uint32_t sampFreq;
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uint8_t clkValid;
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// Range states
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audio_control_range_2_n_t(1) volumeRng[CFG_TUD_AUDIO_N_CHANNELS_TX+1]; // Volume range state
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audio_control_range_4_n_t(1) sampleFreqRng; // Sample frequency range state
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void led_blinking_task(void);
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void audio_task(void);
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/*------------- MAIN -------------*/
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int main(void)
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{
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board_init();
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tusb_init();
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// Init values
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sampFreq = 44100;
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clkValid = 1;
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sampleFreqRng.wNumSubRanges = 1;
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sampleFreqRng.subrange[0].bMin = 44100;
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sampleFreqRng.subrange[0].bMax = 44100;
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sampleFreqRng.subrange[0].bRes = 0;
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while (1)
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{
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tud_task(); // tinyusb device task
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led_blinking_task();
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audio_task();
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}
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return 0;
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}
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//--------------------------------------------------------------------+
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// Device callbacks
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//--------------------------------------------------------------------+
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// Invoked when device is mounted
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void tud_mount_cb(void)
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{
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blink_interval_ms = BLINK_MOUNTED;
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}
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// Invoked when device is unmounted
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void tud_umount_cb(void)
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{
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blink_interval_ms = BLINK_NOT_MOUNTED;
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}
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// Invoked when usb bus is suspended
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// remote_wakeup_en : if host allow us to perform remote wakeup
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// Within 7ms, device must draw an average of current less than 2.5 mA from bus
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void tud_suspend_cb(bool remote_wakeup_en)
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{
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(void) remote_wakeup_en;
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blink_interval_ms = BLINK_SUSPENDED;
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}
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// Invoked when usb bus is resumed
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void tud_resume_cb(void)
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{
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blink_interval_ms = BLINK_MOUNTED;
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}
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//--------------------------------------------------------------------+
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// AUDIO Task
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//--------------------------------------------------------------------+
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void audio_task(void)
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{
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// Yet to be filled - e.g. put meas data into TX FIFOs etc.
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asm("nop");
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}
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//--------------------------------------------------------------------+
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// Application Callback API Implementations
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//--------------------------------------------------------------------+
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// Invoked when audio class specific set request received for an EP
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bool tud_audio_set_req_ep_cb(uint8_t rhport, tusb_control_request_t const * p_request, uint8_t *pBuff)
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{
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(void) rhport;
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// We do not support any set range requests here, only current value requests
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TU_VERIFY(p_request->bRequest == AUDIO_CS_REQ_CUR);
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// Page 91 in UAC2 specification
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uint8_t channelNum = TU_U16_LOW(p_request->wValue);
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uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue);
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uint8_t ep = TU_U16_LOW(p_request->wIndex);
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return false; // Yet not implemented
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}
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// Invoked when audio class specific set request received for an interface
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bool tud_audio_set_req_itf_cb(uint8_t rhport, tusb_control_request_t const * p_request, uint8_t *pBuff)
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{
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(void) rhport;
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// We do not support any set range requests here, only current value requests
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TU_VERIFY(p_request->bRequest == AUDIO_CS_REQ_CUR);
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// Page 91 in UAC2 specification
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uint8_t channelNum = TU_U16_LOW(p_request->wValue);
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uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue);
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uint8_t itf = TU_U16_LOW(p_request->wIndex);
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return false; // Yet not implemented
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}
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// Invoked when audio class specific set request received for an entity
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bool tud_audio_set_req_entity_cb(uint8_t rhport, tusb_control_request_t const * p_request, uint8_t *pBuff)
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{
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(void) rhport;
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// Page 91 in UAC2 specification
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uint8_t channelNum = TU_U16_LOW(p_request->wValue);
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uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue);
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uint8_t itf = TU_U16_LOW(p_request->wIndex);
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uint8_t entityID = TU_U16_HIGH(p_request->wIndex);
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// We do not support any set range requests here, only current value requests
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TU_VERIFY(p_request->bRequest == AUDIO_CS_REQ_CUR);
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// If request is for our feature unit
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if (entityID == 2)
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{
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switch (ctrlSel)
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{
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case AUDIO_FU_CTRL_MUTE:
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// Request uses format layout 1
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TU_VERIFY(p_request->wLength == sizeof(audio_control_cur_1_t));
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mute[channelNum] = ((audio_control_cur_1_t *)pBuff)->bCur;
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TU_LOG2(" Set Mute: %d of channel: %u\r\n", mute[channelNum], channelNum);
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return true;
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case AUDIO_FU_CTRL_VOLUME:
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// Request uses format layout 2
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TU_VERIFY(p_request->wLength == sizeof(audio_control_cur_2_t));
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volume[channelNum] = ((audio_control_cur_2_t *)pBuff)->bCur;
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TU_LOG2(" Set Volume: %d dB of channel: %u\r\n", volume[channelNum], channelNum);
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return true;
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// Unknown/Unsupported control
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default: TU_BREAKPOINT(); return false;
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}
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}
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return false; // Yet not implemented
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}
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// Invoked when audio class specific get request received for an EP
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bool tud_audio_get_req_ep_cb(uint8_t rhport, tusb_control_request_t const * p_request)
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{
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(void) rhport;
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// Page 91 in UAC2 specification
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uint8_t channelNum = TU_U16_LOW(p_request->wValue);
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uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue);
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uint8_t ep = TU_U16_LOW(p_request->wIndex);
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// return tud_control_xfer(rhport, p_request, &tmp, 1);
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return false; // Yet not implemented
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}
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// Invoked when audio class specific get request received for an interface
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bool tud_audio_get_req_itf_cb(uint8_t rhport, tusb_control_request_t const * p_request)
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{
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(void) rhport;
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// Page 91 in UAC2 specification
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uint8_t channelNum = TU_U16_LOW(p_request->wValue);
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uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue);
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uint8_t itf = TU_U16_LOW(p_request->wIndex);
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return false; // Yet not implemented
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}
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// Invoked when audio class specific get request received for an entity
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bool tud_audio_get_req_entity_cb(uint8_t rhport, tusb_control_request_t const * p_request)
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{
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(void) rhport;
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// Page 91 in UAC2 specification
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uint8_t channelNum = TU_U16_LOW(p_request->wValue);
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uint8_t ctrlSel = TU_U16_HIGH(p_request->wValue);
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// uint8_t itf = TU_U16_LOW(p_request->wIndex); // Since we have only one audio function implemented, we do not need the itf value
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uint8_t entityID = TU_U16_HIGH(p_request->wIndex);
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// Input terminal (Microphone input)
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if (entityID == 1)
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{
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switch (ctrlSel)
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{
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case AUDIO_TE_CTRL_CONNECTOR:;
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// The terminal connector control only has a get request with only the CUR attribute.
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audio_desc_channel_cluster_t ret;
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// Those are dummy values for now
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ret.bNrChannels = 1;
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ret.bmChannelConfig = 0;
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ret.iChannelNames = 0;
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TU_LOG2(" Get terminal connector\r\n");
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return tud_audio_buffer_and_schedule_control_xfer(rhport, p_request, (void*)&ret, sizeof(ret));
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// Unknown/Unsupported control selector
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default: TU_BREAKPOINT(); return false;
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}
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}
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// Feature unit
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if (entityID == 2)
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{
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switch (ctrlSel)
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{
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case AUDIO_FU_CTRL_MUTE:
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// Audio control mute cur parameter block consists of only one byte - we thus can send it right away
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// There does not exist a range parameter block for mute
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TU_LOG2(" Get Mute of channel: %u\r\n", channelNum);
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return tud_control_xfer(rhport, p_request, &mute[channelNum], 1);
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case AUDIO_FU_CTRL_VOLUME:
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switch (p_request->bRequest)
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{
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case AUDIO_CS_REQ_CUR:
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TU_LOG2(" Get Volume of channel: %u\r\n", channelNum);
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return tud_control_xfer(rhport, p_request, &volume[channelNum], sizeof(volume[channelNum]));
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case AUDIO_CS_REQ_RANGE:
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TU_LOG2(" Get Volume range of channel: %u\r\n", channelNum);
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// Copy values - only for testing - better is version below
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audio_control_range_2_n_t(1) ret;
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ret.wNumSubRanges = 1;
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ret.subrange[0].bMin = -90; // -90 dB
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ret.subrange[0].bMax = 90; // +90 dB
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ret.subrange[0].bRes = 1; // 1 dB steps
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return tud_audio_buffer_and_schedule_control_xfer(rhport, p_request, (void*)&ret, sizeof(ret));
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// Unknown/Unsupported control
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default: TU_BREAKPOINT(); return false;
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}
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// Unknown/Unsupported control
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default: TU_BREAKPOINT(); return false;
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}
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}
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// Clock Source unit
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if (entityID == 4)
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{
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switch (ctrlSel)
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{
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case AUDIO_CS_CTRL_SAM_FREQ:
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// channelNum is always zero in this case
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switch (p_request->bRequest)
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{
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case AUDIO_CS_REQ_CUR:
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TU_LOG2(" Get Sample Freq.\r\n");
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return tud_control_xfer(rhport, p_request, &sampFreq, sizeof(sampFreq));
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case AUDIO_CS_REQ_RANGE:
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TU_LOG2(" Get Sample Freq. range\r\n");
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return tud_control_xfer(rhport, p_request, &sampleFreqRng, sizeof(sampleFreqRng));
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// Unknown/Unsupported control
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default: TU_BREAKPOINT(); return false;
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}
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case AUDIO_CS_CTRL_CLK_VALID:
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// Only cur attribute exists for this request
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TU_LOG2(" Get Sample Freq. valid\r\n");
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return tud_control_xfer(rhport, p_request, &clkValid, sizeof(clkValid));
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// Unknown/Unsupported control
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default: TU_BREAKPOINT(); return false;
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}
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}
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TU_LOG2(" Unsupported entity: %d\r\n", entityID);
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return false; // Yet not implemented
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}
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//--------------------------------------------------------------------+
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// BLINKING TASK
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//--------------------------------------------------------------------+
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void led_blinking_task(void)
|
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{
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static uint32_t start_ms = 0;
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static bool led_state = false;
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// Blink every interval ms
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if ( board_millis() - start_ms < blink_interval_ms) return; // not enough time
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start_ms += blink_interval_ms;
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board_led_write(led_state);
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led_state = 1 - led_state; // toggle
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}
|
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112
examples/device/audio_test/src/tusb_config.h
Normal file
112
examples/device/audio_test/src/tusb_config.h
Normal file
@ -0,0 +1,112 @@
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/*
|
||||
* The MIT License (MIT)
|
||||
*
|
||||
* Copyright (c) 2019 Ha Thach (tinyusb.org)
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
*/
|
||||
|
||||
#ifndef _TUSB_CONFIG_H_
|
||||
#define _TUSB_CONFIG_H_
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
|
||||
//--------------------------------------------------------------------
|
||||
// COMMON CONFIGURATION
|
||||
//--------------------------------------------------------------------
|
||||
|
||||
// defined by compiler flags for flexibility
|
||||
#ifndef CFG_TUSB_MCU
|
||||
#error CFG_TUSB_MCU must be defined
|
||||
#endif
|
||||
|
||||
#if CFG_TUSB_MCU == OPT_MCU_LPC43XX || CFG_TUSB_MCU == OPT_MCU_LPC18XX || CFG_TUSB_MCU == OPT_MCU_MIMXRT10XX
|
||||
#define CFG_TUSB_RHPORT0_MODE (OPT_MODE_DEVICE | OPT_MODE_HIGH_SPEED)
|
||||
#else
|
||||
#define CFG_TUSB_RHPORT0_MODE OPT_MODE_DEVICE
|
||||
#endif
|
||||
|
||||
#define CFG_TUSB_OS OPT_OS_NONE
|
||||
|
||||
// CFG_TUSB_DEBUG is defined by compiler in DEBUG build
|
||||
// #define CFG_TUSB_DEBUG 0
|
||||
|
||||
/* USB DMA on some MCUs can only access a specific SRAM region with restriction on alignment.
|
||||
* Tinyusb use follows macros to declare transferring memory so that they can be put
|
||||
* into those specific section.
|
||||
* e.g
|
||||
* - CFG_TUSB_MEM SECTION : __attribute__ (( section(".usb_ram") ))
|
||||
* - CFG_TUSB_MEM_ALIGN : __attribute__ ((aligned(4)))
|
||||
*/
|
||||
#ifndef CFG_TUSB_MEM_SECTION
|
||||
#define CFG_TUSB_MEM_SECTION
|
||||
#endif
|
||||
|
||||
#ifndef CFG_TUSB_MEM_ALIGN
|
||||
#define CFG_TUSB_MEM_ALIGN __attribute__ ((aligned(4)))
|
||||
#endif
|
||||
|
||||
//--------------------------------------------------------------------
|
||||
// DEVICE CONFIGURATION
|
||||
//--------------------------------------------------------------------
|
||||
|
||||
#ifndef CFG_TUD_ENDPOINT0_SIZE
|
||||
#define CFG_TUD_ENDPOINT0_SIZE 64
|
||||
#endif
|
||||
|
||||
//------------- CLASS -------------//
|
||||
#define CFG_TUD_CDC 0
|
||||
#define CFG_TUD_MSC 0
|
||||
#define CFG_TUD_HID 0
|
||||
#define CFG_TUD_MIDI 0
|
||||
#define CFG_TUD_AUDIO 1
|
||||
#define CFG_TUD_VENDOR 0
|
||||
|
||||
//--------------------------------------------------------------------
|
||||
// AUDIO CLASS DRIVER CONFIGURATION
|
||||
//--------------------------------------------------------------------
|
||||
|
||||
// Audio format type
|
||||
#define CFG_TUD_AUDIO_USE_TX_FIFO 1
|
||||
#define CFG_TUD_AUDIO_FORMAT_TYPE_TX AUDIO_FORMAT_TYPE_I
|
||||
#define CFG_TUD_AUDIO_FORMAT_TYPE_RX AUDIO_FORMAT_TYPE_UNDEFINED
|
||||
|
||||
// Audio format type I specifications
|
||||
#define CFG_TUD_AUDIO_FORMAT_TYPE_I_TX AUDIO_DATA_FORMAT_TYPE_I_PCM
|
||||
#define CFG_TUD_AUDIO_N_CHANNELS_TX 1
|
||||
#define CFG_TUD_AUDIO_N_BYTES_PER_SAMPLE_TX 3
|
||||
|
||||
// EP and buffer size - for isochronous EP´s, the buffer and EP size are equal (different sizes would not make sense)
|
||||
#define CFG_TUD_AUDIO_EPSIZE_IN 45*CFG_TUD_AUDIO_N_BYTES_PER_SAMPLE_TX*CFG_TUD_AUDIO_N_CHANNELS_TX // 45 Samples (44.1 kHz) x 3 Bytes/Sample x 1 Channels
|
||||
#define CFG_TUD_AUDIO_TX_FIFO_SIZE 45*4 // 45 Samples (44.1 kHz) x 4 Bytes/Sample (1 word)
|
||||
|
||||
// Number of Standard AS Interface Descriptors (4.9.1) defined per audio function - this is required to be able to remember the current alternate settings of these interfaces - We restrict us here to have a constant number for all audio functions (which means this has to be the maximum number of AS interfaces an audio function has and a second audio function with less AS interfaces just wastes a few bytes)
|
||||
#define CFG_TUD_AUDIO_N_AS_INT 1
|
||||
|
||||
// Size of control request buffer
|
||||
#define CFG_TUD_AUDIO_CTRL_BUF_SIZE 64
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
#endif /* _TUSB_CONFIG_H_ */
|
||||
167
examples/device/audio_test/src/usb_descriptors.c
Normal file
167
examples/device/audio_test/src/usb_descriptors.c
Normal file
@ -0,0 +1,167 @@
|
||||
/*
|
||||
* The MIT License (MIT)
|
||||
*
|
||||
* Copyright (c) 2019 Ha Thach (tinyusb.org)
|
||||
*
|
||||
* 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.
|
||||
*
|
||||
*/
|
||||
|
||||
#include "tusb.h"
|
||||
|
||||
/* A combination of interfaces must have a unique product id, since PC will save device driver after the first plug.
|
||||
* Same VID/PID with different interface e.g MSC (first), then CDC (later) will possibly cause system error on PC.
|
||||
*
|
||||
* Auto ProductID layout's Bitmap:
|
||||
* [MSB] AUDIO | MIDI | HID | MSC | CDC [LSB]
|
||||
*/
|
||||
#define _PID_MAP(itf, n) ( (CFG_TUD_##itf) << (n) )
|
||||
#define USB_PID (0x4000 | _PID_MAP(CDC, 0) | _PID_MAP(MSC, 1) | _PID_MAP(HID, 2) | \
|
||||
_PID_MAP(MIDI, 3) | _PID_MAP(AUDIO, 4) | _PID_MAP(VENDOR, 5) )
|
||||
|
||||
//--------------------------------------------------------------------+
|
||||
// Device Descriptors
|
||||
//--------------------------------------------------------------------+
|
||||
tusb_desc_device_t const desc_device =
|
||||
{
|
||||
.bLength = sizeof(tusb_desc_device_t),
|
||||
.bDescriptorType = TUSB_DESC_DEVICE,
|
||||
.bcdUSB = 0x0200,
|
||||
|
||||
// Use Interface Association Descriptor (IAD) for CDC
|
||||
// As required by USB Specs IAD's subclass must be common class (2) and protocol must be IAD (1)
|
||||
.bDeviceClass = TUSB_CLASS_MISC,
|
||||
.bDeviceSubClass = MISC_SUBCLASS_COMMON,
|
||||
.bDeviceProtocol = MISC_PROTOCOL_IAD,
|
||||
.bMaxPacketSize0 = CFG_TUD_ENDPOINT0_SIZE,
|
||||
|
||||
.idVendor = 0xCafe,
|
||||
.idProduct = USB_PID,
|
||||
.bcdDevice = 0x0100,
|
||||
|
||||
.iManufacturer = 0x01,
|
||||
.iProduct = 0x02,
|
||||
.iSerialNumber = 0x03,
|
||||
|
||||
.bNumConfigurations = 0x01
|
||||
};
|
||||
|
||||
// Invoked when received GET DEVICE DESCRIPTOR
|
||||
// Application return pointer to descriptor
|
||||
uint8_t const * tud_descriptor_device_cb(void)
|
||||
{
|
||||
return (uint8_t const *) &desc_device;
|
||||
}
|
||||
|
||||
//--------------------------------------------------------------------+
|
||||
// Configuration Descriptor
|
||||
//--------------------------------------------------------------------+
|
||||
enum
|
||||
{
|
||||
ITF_NUM_AUDIO_CONTROL = 0,
|
||||
ITF_NUM_AUDIO_STREAMING,
|
||||
ITF_NUM_TOTAL
|
||||
};
|
||||
|
||||
#define CONFIG_TOTAL_LEN (TUD_CONFIG_DESC_LEN + CFG_TUD_AUDIO * TUD_AUDIO_MIC_DESC_LEN)
|
||||
|
||||
#if CFG_TUSB_MCU == OPT_MCU_LPC175X_6X || CFG_TUSB_MCU == OPT_MCU_LPC177X_8X || CFG_TUSB_MCU == OPT_MCU_LPC40XX
|
||||
// LPC 17xx and 40xx endpoint type (bulk/interrupt/iso) are fixed by its number
|
||||
// 0 control, 1 In, 2 Bulk, 3 Iso, 4 In etc ...
|
||||
#define EPNUM_AUDIO 0x03
|
||||
#else
|
||||
#define EPNUM_AUDIO 0x01
|
||||
#endif
|
||||
|
||||
// These variables are required by the audio driver in audio_device.c
|
||||
|
||||
// List of audio descriptor lengths which is required by audio driver - you need as many entries as CFG_TUD_AUDIO - unfortunately this is not possible to determine otherwise
|
||||
const uint16_t tud_audio_desc_lengths[] = {TUD_AUDIO_MIC_DESC_LEN};
|
||||
|
||||
// TAKE CARE - THE NUMBER OF AUDIO STREAMING INTERFACES PER AUDIO FUNCTION MUST NOT EXCEED CFG_TUD_AUDIO_N_AS_INT - IF IT DOES INCREASE CFG_TUD_AUDIO_N_AS_INT IN tusb_config.h!
|
||||
|
||||
uint8_t const desc_configuration[] =
|
||||
{
|
||||
// Interface count, string index, total length, attribute, power in mA
|
||||
TUD_CONFIG_DESCRIPTOR(1, ITF_NUM_TOTAL, 0, CONFIG_TOTAL_LEN, TUSB_DESC_CONFIG_ATT_REMOTE_WAKEUP, 100),
|
||||
|
||||
// Interface number, string index, EP Out & EP In address, EP size
|
||||
TUD_AUDIO_MIC_DESCRIPTOR(/*_itfnum*/ ITF_NUM_AUDIO_CONTROL, /*_stridx*/ 0, /*_nBytesPerSample*/ 3, /*_nBitsUsedPerSample*/ 24, /*_epin*/ 0x80 | EPNUM_AUDIO, /*_epsize*/ 45*3)
|
||||
};
|
||||
|
||||
// Invoked when received GET CONFIGURATION DESCRIPTOR
|
||||
// Application return pointer to descriptor
|
||||
// Descriptor contents must exist long enough for transfer to complete
|
||||
uint8_t const * tud_descriptor_configuration_cb(uint8_t index)
|
||||
{
|
||||
(void) index; // for multiple configurations
|
||||
return desc_configuration;
|
||||
}
|
||||
|
||||
//--------------------------------------------------------------------+
|
||||
// String Descriptors
|
||||
//--------------------------------------------------------------------+
|
||||
|
||||
// array of pointer to string descriptors
|
||||
char const* string_desc_arr [] =
|
||||
{
|
||||
(const char[]) { 0x09, 0x04 }, // 0: is supported language is English (0x0409)
|
||||
"PaniRCorp", // 1: Manufacturer
|
||||
"MicNode", // 2: Product
|
||||
"123456", // 3: Serials, should use chip ID
|
||||
"UAC2", // 4: Audio Interface
|
||||
};
|
||||
|
||||
static uint16_t _desc_str[32];
|
||||
|
||||
// Invoked when received GET STRING DESCRIPTOR request
|
||||
// Application return pointer to descriptor, whose contents must exist long enough for transfer to complete
|
||||
uint16_t const* tud_descriptor_string_cb(uint8_t index, uint16_t langid)
|
||||
{
|
||||
(void) langid;
|
||||
|
||||
uint8_t chr_count;
|
||||
|
||||
if ( index == 0)
|
||||
{
|
||||
memcpy(&_desc_str[1], string_desc_arr[0], 2);
|
||||
chr_count = 1;
|
||||
}else
|
||||
{
|
||||
// Convert ASCII string into UTF-16
|
||||
|
||||
if ( !(index < sizeof(string_desc_arr)/sizeof(string_desc_arr[0])) ) return NULL;
|
||||
|
||||
const char* str = string_desc_arr[index];
|
||||
|
||||
// Cap at max char
|
||||
chr_count = strlen(str);
|
||||
if ( chr_count > 31 ) chr_count = 31;
|
||||
|
||||
for(uint8_t i=0; i<chr_count; i++)
|
||||
{
|
||||
_desc_str[1+i] = str[i];
|
||||
}
|
||||
}
|
||||
|
||||
// first byte is length (including header), second byte is string type
|
||||
_desc_str[0] = (TUSB_DESC_STRING << 8 ) | (2*chr_count + 2);
|
||||
|
||||
return _desc_str;
|
||||
}
|
||||
File diff suppressed because it is too large
Load Diff
@ -384,7 +384,8 @@ static bool audio_tx_done_cb(uint8_t rhport, audiod_interface_t* audio, uint16_t
|
||||
{
|
||||
case AUDIO_FORMAT_TYPE_UNDEFINED:
|
||||
// INDIVIDUAL ENCODING PROCEDURE REQUIRED HERE!
|
||||
asm("nop");
|
||||
TU_LOG2(" Desired CFG_TUD_AUDIO_FORMAT encoding not implemented!\r\n");
|
||||
TU_BREAKPOINT();
|
||||
break;
|
||||
|
||||
case AUDIO_FORMAT_TYPE_I:
|
||||
@ -402,19 +403,21 @@ static bool audio_tx_done_cb(uint8_t rhport, audiod_interface_t* audio, uint16_t
|
||||
|
||||
default:
|
||||
// YOUR ENCODING AND SENDING IS REQUIRED HERE!
|
||||
asm("nop");
|
||||
TU_LOG2(" Desired CFG_TUD_AUDIO_FORMAT_TYPE_I_TX encoding not implemented!\r\n");
|
||||
TU_BREAKPOINT();
|
||||
break;
|
||||
}
|
||||
break;
|
||||
|
||||
default:
|
||||
// Desired CFG_TUD_AUDIO_FORMAT_TYPE_TX not implemented!
|
||||
asm("nop");
|
||||
TU_LOG2(" Desired CFG_TUD_AUDIO_FORMAT_TYPE_TX not implemented!\r\n");
|
||||
TU_BREAKPOINT();
|
||||
break;
|
||||
}
|
||||
|
||||
// Call a weak callback here - a possibility for user to get informed TX was completed
|
||||
TU_VERIFY(tud_audio_tx_done_cb(rhport, n_bytes_copied));
|
||||
if (tud_audio_tx_done_cb) TU_VERIFY(tud_audio_tx_done_cb(rhport, n_bytes_copied));
|
||||
return true;
|
||||
}
|
||||
|
||||
@ -497,7 +500,7 @@ static uint16_t audio_fb_done_cb(uint8_t rhport, audiod_interface_t* audio)
|
||||
// Here we need to return the feedback value
|
||||
#error RETURN YOUR FEEDBACK VALUE HERE!
|
||||
|
||||
TU_VERIFY(tud_audio_fb_done_cb(rhport));
|
||||
if (tud_audio_fb_done_cb) TU_VERIFY(tud_audio_fb_done_cb(rhport));
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -522,57 +525,12 @@ static bool audio_int_ctr_done_cb(uint8_t rhport, audiod_interface_t* audio, uin
|
||||
|
||||
*n_bytes_copied = cnt;
|
||||
|
||||
TU_VERIFY(tud_audio_int_ctr_done_cb(rhport, n_bytes_copied));
|
||||
if (tud_audio_int_ctr_done_cb) TU_VERIFY(tud_audio_int_ctr_done_cb(rhport, n_bytes_copied));
|
||||
|
||||
return true;
|
||||
}
|
||||
#endif
|
||||
|
||||
// Callback functions
|
||||
// Currently the return value has to effect so far. The return value finally is discarded in tud_task(void) in usbd.c - we just incorporate that for later use
|
||||
|
||||
#if CFG_TUD_AUDIO_EPSIZE_IN
|
||||
TU_ATTR_WEAK bool tud_audio_tx_done_cb(uint8_t rhport, uint16_t * n_bytes_copied)
|
||||
{
|
||||
(void) rhport;
|
||||
(void) n_bytes_copied;
|
||||
|
||||
/* NOTE: This function should not be modified, when the callback is needed,
|
||||
the tud_audio_tx_done_cb could be implemented in the user file
|
||||
*/
|
||||
|
||||
return true;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if CFG_TUD_AUDIO_EPSIZE_OUT && CFG_TUD_AUDIO_ENABLE_FEEDBACK_EP
|
||||
TU_ATTR_WEAK bool tud_audio_fb_done_cb(uint8_t rhport)
|
||||
{
|
||||
(void) rhport;
|
||||
|
||||
/* NOTE: This function should not be modified, when the callback is needed,
|
||||
the tud_audio_fb_done_cb could be implemented in the user file
|
||||
*/
|
||||
|
||||
return true;
|
||||
}
|
||||
#endif
|
||||
|
||||
#if CFG_TUD_AUDIO_INT_CTR_EPSIZE_IN
|
||||
TU_ATTR_WEAK bool tud_audio_int_ctr_done_cb(uint8_t rhport, uint16_t * n_bytes_copied)
|
||||
{
|
||||
(void) rhport;
|
||||
(void) n_bytes_copied;
|
||||
|
||||
/* NOTE: This function should not be modified, when the callback is needed,
|
||||
the tud_audio_int_ctr_done_cb could be implemented in the user file
|
||||
*/
|
||||
|
||||
return true;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
//--------------------------------------------------------------------+
|
||||
// USBD Driver API
|
||||
//--------------------------------------------------------------------+
|
||||
@ -755,6 +713,8 @@ static bool audiod_set_interface(uint8_t rhport, tusb_control_request_t const *
|
||||
}
|
||||
#endif
|
||||
|
||||
// Save current alternative interface setting
|
||||
_audiod_itf[idxDriver].altSetting[idxItf] = alt;
|
||||
|
||||
// Open new EP if necessary - EPs are only to be closed or opened for AS interfaces - Look for AS interface with correct alternate interface
|
||||
// Get pointer at end
|
||||
@ -778,8 +738,16 @@ static bool audiod_set_interface(uint8_t rhport, tusb_control_request_t const *
|
||||
#if CFG_TUD_AUDIO_EPSIZE_IN > 0
|
||||
if (tu_edpt_dir(ep_addr) == TUSB_DIR_IN && ((tusb_desc_endpoint_t const *) p_desc)->bmAttributes.usage == 0x00) // Check if usage is data EP
|
||||
{
|
||||
// Save address
|
||||
_audiod_itf[idxDriver].ep_in = ep_addr;
|
||||
_audiod_itf[idxDriver].ep_in_as_intf_num = itf;
|
||||
|
||||
// HERE WE WOULD NEED TO SCHEDULE OUR FIRST TRANSMIT, HOWEVER, WE ALSO WOULD FIRST NEED TO ENABLE SAMPLING AT ALL - HOW TO HANDLE THIS?
|
||||
// Invoke callback - fill something in the FIFO here for now
|
||||
if (tud_audio_set_itf_cb) TU_VERIFY(tud_audio_set_itf_cb(rhport, p_request));
|
||||
|
||||
uint16_t n_bytes_copied;
|
||||
TU_VERIFY(audio_tx_done_cb(rhport, &_audiod_itf[idxDriver], &n_bytes_copied));
|
||||
}
|
||||
#endif
|
||||
|
||||
@ -791,6 +759,9 @@ static bool audiod_set_interface(uint8_t rhport, tusb_control_request_t const *
|
||||
_audiod_itf[idxDriver].ep_out = ep_addr;
|
||||
_audiod_itf[idxDriver].ep_out_as_intf_num = itf;
|
||||
|
||||
// Invoke callback
|
||||
if (tud_audio_set_itf_cb) TU_VERIFY(tud_audio_set_itf_cb(rhport, p_request));
|
||||
|
||||
// Prepare for incoming data
|
||||
TU_ASSERT(usbd_edpt_xfer(rhport, ep_addr, _audiod_itf[idxDriver].epout_buf, CFG_TUD_AUDIO_EPSIZE_OUT), false);
|
||||
}
|
||||
@ -799,6 +770,9 @@ static bool audiod_set_interface(uint8_t rhport, tusb_control_request_t const *
|
||||
if (tu_edpt_dir(ep_addr) == TUSB_DIR_IN && ((tusb_desc_endpoint_t const *) p_desc)->bmAttributes.usage == 0x10) // Check if usage is implicit data feedback
|
||||
{
|
||||
_audiod_itf[idxDriver].ep_fb = ep_addr;
|
||||
|
||||
// Invoke callback
|
||||
if (tud_audio_set_itf_cb) TU_VERIFY(tud_audio_set_itf_cb(rhport, p_request));
|
||||
}
|
||||
#endif
|
||||
|
||||
@ -818,20 +792,6 @@ static bool audiod_set_interface(uint8_t rhport, tusb_control_request_t const *
|
||||
p_desc = tu_desc_next(p_desc);
|
||||
}
|
||||
|
||||
// // Check for nothing found - we can rely on this since EP descriptors are never the last descriptors, there are always also class specific EP descriptors following!
|
||||
// TU_VERIFY(p_desc < p_desc_end);
|
||||
|
||||
// Save current alternative interface setting
|
||||
_audiod_itf[idxDriver].altSetting[idxItf] = alt;
|
||||
|
||||
// Invoke callback
|
||||
if (tud_audio_set_itf_cb)
|
||||
{
|
||||
if (!tud_audio_set_itf_cb(rhport, p_request)) return false;
|
||||
}
|
||||
|
||||
// Start sending or receiving?
|
||||
|
||||
tud_control_status(rhport, p_request);
|
||||
|
||||
return true;
|
||||
|
||||
@ -1,7 +1,8 @@
|
||||
/*
|
||||
* The MIT License (MIT)
|
||||
*
|
||||
* Copyright (c) 2020 Ha Thach (tinyusb.org) and Reinhard Panhuber
|
||||
* Copyright (c) 2020 Ha Thach (tinyusb.org)
|
||||
* 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
|
||||
@ -217,15 +218,15 @@ bool tud_audio_buffer_and_schedule_control_xfer(uint8_t rhport, tusb_control_req
|
||||
//--------------------------------------------------------------------+
|
||||
|
||||
#if CFG_TUD_AUDIO_EPSIZE_IN
|
||||
bool tud_audio_tx_done_cb(uint8_t rhport, uint16_t * n_bytes_copied);
|
||||
TU_ATTR_WEAK bool tud_audio_tx_done_cb(uint8_t rhport, uint16_t * n_bytes_copied);
|
||||
#endif
|
||||
|
||||
#if CFG_TUD_AUDIO_EPSIZE_OUT
|
||||
bool tud_audio_rx_done_cb(uint8_t rhport, uint8_t * buffer, uint16_t bufsize);
|
||||
TU_ATTR_WEAK bool tud_audio_rx_done_cb(uint8_t rhport, uint8_t * buffer, uint16_t bufsize);
|
||||
#endif
|
||||
|
||||
#if CFG_TUD_AUDIO_EPSIZE_OUT > 0 && CFG_TUD_AUDIO_ENABLE_FEEDBACK_EP
|
||||
bool tud_audio_fb_done_cb(uint8_t rhport);
|
||||
TU_ATTR_WEAK bool tud_audio_fb_done_cb(uint8_t rhport);
|
||||
#endif
|
||||
|
||||
#if CFG_TUD_AUDIO_INT_CTR_EPSIZE_IN
|
||||
|
||||
@ -4,6 +4,7 @@
|
||||
* Copyright (c) 2018 Scott Shawcroft, 2019 William D. Jones for Adafruit Industries
|
||||
* Copyright (c) 2019 Ha Thach (tinyusb.org)
|
||||
* Copyright (c) 2020 Jan Duempelmann
|
||||
* 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
|
||||
|
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