USB device stack
Dependents: mbed_11U24_CapacitorDose_V001
Revision 72:ff90dd9ad449, committed 2019-11-22
- Comitter:
- H_Tsunemoto
- Date:
- Fri Nov 22 08:17:42 2019 +0000
- Parent:
- 71:53949e6131f6
- Commit message:
- CpaDose
Changed in this revision
--- a/USBAudio/USBAudio.cpp Thu Jul 27 12:14:04 2017 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,641 +0,0 @@ -/* Copyright (c) 2010-2011 mbed.org, MIT License -* -* 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 "stdint.h" -#include "USBAudio.h" -#include "USBAudio_Types.h" - - - -USBAudio::USBAudio(uint32_t frequency_in, uint8_t channel_nb_in, uint32_t frequency_out, uint8_t channel_nb_out, uint16_t vendor_id, uint16_t product_id, uint16_t product_release): USBDevice(vendor_id, product_id, product_release) { - mute = 0; - volCur = 0x0080; - volMin = 0x0000; - volMax = 0x0100; - volRes = 0x0004; - available = false; - - FREQ_IN = frequency_in; - FREQ_OUT = frequency_out; - - this->channel_nb_in = channel_nb_in; - this->channel_nb_out = channel_nb_out; - - // stereo -> *2, mono -> *1 - PACKET_SIZE_ISO_IN = (FREQ_IN / 500) * channel_nb_in; - PACKET_SIZE_ISO_OUT = (FREQ_OUT / 500) * channel_nb_out; - - // STEREO -> left and right - channel_config_in = (channel_nb_in == 1) ? CHANNEL_M : CHANNEL_L + CHANNEL_R; - channel_config_out = (channel_nb_out == 1) ? CHANNEL_M : CHANNEL_L + CHANNEL_R; - - SOF_handler = false; - - buf_stream_out = NULL; - buf_stream_in = NULL; - - interruptOUT = false; - writeIN = false; - interruptIN = false; - available = false; - - volume = 0; - - // connect the device - USBDevice::connect(); -} - -bool USBAudio::read(uint8_t * buf) { - buf_stream_in = buf; - SOF_handler = false; - while (!available || !SOF_handler); - available = false; - return true; -} - -bool USBAudio::readNB(uint8_t * buf) { - buf_stream_in = buf; - SOF_handler = false; - while (!SOF_handler); - if (available) { - available = false; - buf_stream_in = NULL; - return true; - } - return false; -} - -bool USBAudio::readWrite(uint8_t * buf_read, uint8_t * buf_write) { - buf_stream_in = buf_read; - SOF_handler = false; - writeIN = false; - if (interruptIN) { - USBDevice::writeNB(EPISO_IN, buf_write, PACKET_SIZE_ISO_OUT, PACKET_SIZE_ISO_OUT); - } else { - buf_stream_out = buf_write; - } - while (!available); - if (interruptIN) { - while (!writeIN); - } - while (!SOF_handler); - return true; -} - - -bool USBAudio::write(uint8_t * buf) { - writeIN = false; - SOF_handler = false; - if (interruptIN) { - USBDevice::writeNB(EPISO_IN, buf, PACKET_SIZE_ISO_OUT, PACKET_SIZE_ISO_OUT); - } else { - buf_stream_out = buf; - } - while (!SOF_handler); - if (interruptIN) { - while (!writeIN); - } - return true; -} - -void USBAudio::writeSync(uint8_t *buf, AudioSampleCorrectType jitter_nb) -{ - if ((jitter_nb != RemoveOneSample) && (jitter_nb != AddOneSample)) { - jitter_nb = NoCorrection; - } - /* each sample is 2 bytes */ - USBDevice::writeNB(EPISO_IN, buf, PACKET_SIZE_ISO_OUT + jitter_nb *(this->channel_nb_out*2), PACKET_SIZE_ISO_OUT+this->channel_nb_out*2); -} - -uint32_t USBAudio::readSync(uint8_t *buf) -{ - uint32_t size = 0; - USBDevice::readEP(EPISO_OUT, (uint8_t *)buf, &size, PACKET_SIZE_ISO_IN); - return size; -} - -float USBAudio::getVolume() { - return (mute) ? 0.0 : volume; -} - - -bool USBAudio::EPISO_OUT_callback() { - uint32_t size = 0; - interruptOUT = true; - if (buf_stream_in != NULL) { - readEP(EPISO_OUT, (uint8_t *)buf_stream_in, &size, PACKET_SIZE_ISO_IN); - available = true; - buf_stream_in = NULL; - } - else { - if (rxDone) - rxDone.call(); - } - readStart(EPISO_OUT, PACKET_SIZE_ISO_IN); - return false; -} - - -bool USBAudio::EPISO_IN_callback() { - interruptIN = true; - writeIN = true; - if (txDone) - txDone.call(); - return true; -} - - - -// Called in ISR context on each start of frame -void USBAudio::SOF(int frameNumber) { - uint32_t size = 0; - - if (!interruptOUT) { - // read the isochronous endpoint - if (buf_stream_in != NULL) { - if (USBDevice::readEP_NB(EPISO_OUT, (uint8_t *)buf_stream_in, &size, PACKET_SIZE_ISO_IN)) { - if (size) { - available = true; - readStart(EPISO_OUT, PACKET_SIZE_ISO_IN); - buf_stream_in = NULL; - } - } - } - } - - if (!interruptIN) { - // write if needed - if (buf_stream_out != NULL) { - USBDevice::writeNB(EPISO_IN, (uint8_t *)buf_stream_out, PACKET_SIZE_ISO_OUT, PACKET_SIZE_ISO_OUT); - buf_stream_out = NULL; - } - } - - SOF_handler = true; -} - - -// Called in ISR context -// Set configuration. Return false if the configuration is not supported. -bool USBAudio::USBCallback_setConfiguration(uint8_t configuration) { - if (configuration != DEFAULT_CONFIGURATION) { - return false; - } - - // Configure isochronous endpoint - realiseEndpoint(EPISO_OUT, PACKET_SIZE_ISO_IN, ISOCHRONOUS); - realiseEndpoint(EPISO_IN, PACKET_SIZE_ISO_OUT+this->channel_nb_out*2, ISOCHRONOUS); - - // activate readings on this endpoint - readStart(EPISO_OUT, PACKET_SIZE_ISO_IN); - return true; -} - - -// Called in ISR context -// Set alternate setting. Return false if the alternate setting is not supported -bool USBAudio::USBCallback_setInterface(uint16_t interface, uint8_t alternate) { - if (interface == 0 && alternate == 0) { - return true; - } - if (interface == 1 && (alternate == 0 || alternate == 1)) { - return true; - } - if (interface == 2 && (alternate == 0 || alternate == 1)) { - return true; - } - return false; -} - - - -// Called in ISR context -// Called by USBDevice on Endpoint0 request -// This is used to handle extensions to standard requests and class specific requests. -// Return true if class handles this request -bool USBAudio::USBCallback_request() { - bool success = false; - CONTROL_TRANSFER * transfer = getTransferPtr(); - - // Process class-specific requests - if (transfer->setup.bmRequestType.Type == CLASS_TYPE) { - - // Feature Unit: Interface = 0, ID = 2 - if (transfer->setup.wIndex == 0x0200) { - - // Master Channel - if ((transfer->setup.wValue & 0xff) == 0) { - - switch (transfer->setup.wValue >> 8) { - case MUTE_CONTROL: - switch (transfer->setup.bRequest) { - case REQUEST_GET_CUR: - transfer->remaining = 1; - transfer->ptr = &mute; - transfer->direction = DEVICE_TO_HOST; - success = true; - break; - - case REQUEST_SET_CUR: - transfer->remaining = 1; - transfer->notify = true; - transfer->direction = HOST_TO_DEVICE; - success = true; - break; - default: - break; - } - break; - case VOLUME_CONTROL: - switch (transfer->setup.bRequest) { - case REQUEST_GET_CUR: - transfer->remaining = 2; - transfer->ptr = (uint8_t *)&volCur; - transfer->direction = DEVICE_TO_HOST; - success = true; - break; - case REQUEST_GET_MIN: - transfer->remaining = 2; - transfer->ptr = (uint8_t *)&volMin; - transfer->direction = DEVICE_TO_HOST; - success = true; - break; - case REQUEST_GET_MAX: - transfer->remaining = 2; - transfer->ptr = (uint8_t *)&volMax; - transfer->direction = DEVICE_TO_HOST; - success = true; - break; - case REQUEST_GET_RES: - transfer->remaining = 2; - transfer->ptr = (uint8_t *)&volRes; - transfer->direction = DEVICE_TO_HOST; - success = true; - break; - - case REQUEST_SET_CUR: - transfer->remaining = 2; - transfer->notify = true; - transfer->direction = HOST_TO_DEVICE; - success = true; - break; - case REQUEST_SET_MIN: - transfer->remaining = 2; - transfer->notify = true; - transfer->direction = HOST_TO_DEVICE; - success = true; - break; - case REQUEST_SET_MAX: - transfer->remaining = 2; - transfer->notify = true; - transfer->direction = HOST_TO_DEVICE; - success = true; - break; - case REQUEST_SET_RES: - transfer->remaining = 2; - transfer->notify = true; - transfer->direction = HOST_TO_DEVICE; - success = true; - break; - } - break; - default: - break; - } - } - } - } - return success; -} - - -// Called in ISR context when a data OUT stage has been performed -void USBAudio::USBCallback_requestCompleted(uint8_t * buf, uint32_t length) { - if ((length == 1) || (length == 2)) { - uint16_t data = (length == 1) ? *buf : *((uint16_t *)buf); - CONTROL_TRANSFER * transfer = getTransferPtr(); - switch (transfer->setup.wValue >> 8) { - case MUTE_CONTROL: - switch (transfer->setup.bRequest) { - case REQUEST_SET_CUR: - mute = data & 0xff; - if (updateVol) - updateVol.call(); - break; - default: - break; - } - break; - case VOLUME_CONTROL: - switch (transfer->setup.bRequest) { - case REQUEST_SET_CUR: - volCur = data; - volume = (float)volCur/(float)volMax; - if (updateVol) - updateVol.call(); - break; - default: - break; - } - break; - default: - break; - } - } -} - - - -#define TOTAL_DESCRIPTOR_LENGTH ((1 * CONFIGURATION_DESCRIPTOR_LENGTH) \ - + (5 * INTERFACE_DESCRIPTOR_LENGTH) \ - + (1 * CONTROL_INTERFACE_DESCRIPTOR_LENGTH + 1) \ - + (2 * INPUT_TERMINAL_DESCRIPTOR_LENGTH) \ - + (1 * FEATURE_UNIT_DESCRIPTOR_LENGTH) \ - + (2 * OUTPUT_TERMINAL_DESCRIPTOR_LENGTH) \ - + (2 * STREAMING_INTERFACE_DESCRIPTOR_LENGTH) \ - + (2 * FORMAT_TYPE_I_DESCRIPTOR_LENGTH) \ - + (2 * (ENDPOINT_DESCRIPTOR_LENGTH + 2)) \ - + (2 * STREAMING_ENDPOINT_DESCRIPTOR_LENGTH) ) - -#define TOTAL_CONTROL_INTF_LENGTH (CONTROL_INTERFACE_DESCRIPTOR_LENGTH + 1 + \ - 2*INPUT_TERMINAL_DESCRIPTOR_LENGTH + \ - FEATURE_UNIT_DESCRIPTOR_LENGTH + \ - 2*OUTPUT_TERMINAL_DESCRIPTOR_LENGTH) - -uint8_t * USBAudio::configurationDesc() { - static uint8_t configDescriptor[] = { - // Configuration 1 - CONFIGURATION_DESCRIPTOR_LENGTH, // bLength - CONFIGURATION_DESCRIPTOR, // bDescriptorType - LSB(TOTAL_DESCRIPTOR_LENGTH), // wTotalLength (LSB) - MSB(TOTAL_DESCRIPTOR_LENGTH), // wTotalLength (MSB) - 0x03, // bNumInterfaces - DEFAULT_CONFIGURATION, // bConfigurationValue - 0x00, // iConfiguration - 0x80, // bmAttributes - 50, // bMaxPower - - // Interface 0, Alternate Setting 0, Audio Control - INTERFACE_DESCRIPTOR_LENGTH, // bLength - INTERFACE_DESCRIPTOR, // bDescriptorType - 0x00, // bInterfaceNumber - 0x00, // bAlternateSetting - 0x00, // bNumEndpoints - AUDIO_CLASS, // bInterfaceClass - SUBCLASS_AUDIOCONTROL, // bInterfaceSubClass - 0x00, // bInterfaceProtocol - 0x00, // iInterface - - - // Audio Control Interface - CONTROL_INTERFACE_DESCRIPTOR_LENGTH + 1,// bLength - INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType - CONTROL_HEADER, // bDescriptorSubtype - LSB(0x0100), // bcdADC (LSB) - MSB(0x0100), // bcdADC (MSB) - LSB(TOTAL_CONTROL_INTF_LENGTH), // wTotalLength - MSB(TOTAL_CONTROL_INTF_LENGTH), // wTotalLength - 0x02, // bInCollection - 0x01, // baInterfaceNr - 0x02, // baInterfaceNr - - // Audio Input Terminal (Speaker) - INPUT_TERMINAL_DESCRIPTOR_LENGTH, // bLength - INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType - CONTROL_INPUT_TERMINAL, // bDescriptorSubtype - 0x01, // bTerminalID - LSB(TERMINAL_USB_STREAMING), // wTerminalType - MSB(TERMINAL_USB_STREAMING), // wTerminalType - 0x00, // bAssocTerminal - channel_nb_in, // bNrChannels - (uint8_t)(LSB(channel_config_in)), // wChannelConfig - (uint8_t)(MSB(channel_config_in)), // wChannelConfig - 0x00, // iChannelNames - 0x00, // iTerminal - - // Audio Feature Unit (Speaker) - FEATURE_UNIT_DESCRIPTOR_LENGTH, // bLength - INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType - CONTROL_FEATURE_UNIT, // bDescriptorSubtype - 0x02, // bUnitID - 0x01, // bSourceID - 0x01, // bControlSize - CONTROL_MUTE | - CONTROL_VOLUME, // bmaControls(0) - 0x00, // bmaControls(1) - 0x00, // iTerminal - - // Audio Output Terminal (Speaker) - OUTPUT_TERMINAL_DESCRIPTOR_LENGTH, // bLength - INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType - CONTROL_OUTPUT_TERMINAL, // bDescriptorSubtype - 0x03, // bTerminalID - LSB(TERMINAL_SPEAKER), // wTerminalType - MSB(TERMINAL_SPEAKER), // wTerminalType - 0x00, // bAssocTerminal - 0x02, // bSourceID - 0x00, // iTerminal - - - // Audio Input Terminal (Microphone) - INPUT_TERMINAL_DESCRIPTOR_LENGTH, // bLength - INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType - CONTROL_INPUT_TERMINAL, // bDescriptorSubtype - 0x04, // bTerminalID - LSB(TERMINAL_MICROPHONE), // wTerminalType - MSB(TERMINAL_MICROPHONE), // wTerminalType - 0x00, // bAssocTerminal - channel_nb_out, // bNrChannels - (uint8_t)(LSB(channel_config_out)), // wChannelConfig - (uint8_t)(MSB(channel_config_out)), // wChannelConfig - 0x00, // iChannelNames - 0x00, // iTerminal - - // Audio Output Terminal (Microphone) - OUTPUT_TERMINAL_DESCRIPTOR_LENGTH, // bLength - INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType - CONTROL_OUTPUT_TERMINAL, // bDescriptorSubtype - 0x05, // bTerminalID - LSB(TERMINAL_USB_STREAMING), // wTerminalType - MSB(TERMINAL_USB_STREAMING), // wTerminalType - 0x00, // bAssocTerminal - 0x04, // bSourceID - 0x00, // iTerminal - - - - - - - // Interface 1, Alternate Setting 0, Audio Streaming - Zero Bandwith - INTERFACE_DESCRIPTOR_LENGTH, // bLength - INTERFACE_DESCRIPTOR, // bDescriptorType - 0x01, // bInterfaceNumber - 0x00, // bAlternateSetting - 0x00, // bNumEndpoints - AUDIO_CLASS, // bInterfaceClass - SUBCLASS_AUDIOSTREAMING, // bInterfaceSubClass - 0x00, // bInterfaceProtocol - 0x00, // iInterface - - // Interface 1, Alternate Setting 1, Audio Streaming - Operational - INTERFACE_DESCRIPTOR_LENGTH, // bLength - INTERFACE_DESCRIPTOR, // bDescriptorType - 0x01, // bInterfaceNumber - 0x01, // bAlternateSetting - 0x01, // bNumEndpoints - AUDIO_CLASS, // bInterfaceClass - SUBCLASS_AUDIOSTREAMING, // bInterfaceSubClass - 0x00, // bInterfaceProtocol - 0x00, // iInterface - - // Audio Streaming Interface - STREAMING_INTERFACE_DESCRIPTOR_LENGTH, // bLength - INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType - STREAMING_GENERAL, // bDescriptorSubtype - 0x01, // bTerminalLink - 0x00, // bDelay - LSB(FORMAT_PCM), // wFormatTag - MSB(FORMAT_PCM), // wFormatTag - - // Audio Type I Format - FORMAT_TYPE_I_DESCRIPTOR_LENGTH, // bLength - INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType - STREAMING_FORMAT_TYPE, // bDescriptorSubtype - FORMAT_TYPE_I, // bFormatType - channel_nb_in, // bNrChannels - 0x02, // bSubFrameSize - 16, // bBitResolution - 0x01, // bSamFreqType - (uint8_t)(LSB(FREQ_IN)), // tSamFreq - (uint8_t)((FREQ_IN >> 8) & 0xff), // tSamFreq - (uint8_t)((FREQ_IN >> 16) & 0xff), // tSamFreq - - // Endpoint - Standard Descriptor - ENDPOINT_DESCRIPTOR_LENGTH + 2, // bLength - ENDPOINT_DESCRIPTOR, // bDescriptorType - PHY_TO_DESC(EPISO_OUT), // bEndpointAddress - E_ISOCHRONOUS, // bmAttributes - (uint8_t)(LSB(PACKET_SIZE_ISO_IN)), // wMaxPacketSize - (uint8_t)(MSB(PACKET_SIZE_ISO_IN)), // wMaxPacketSize - 0x01, // bInterval - 0x00, // bRefresh - 0x00, // bSynchAddress - - // Endpoint - Audio Streaming - STREAMING_ENDPOINT_DESCRIPTOR_LENGTH, // bLength - ENDPOINT_DESCRIPTOR_TYPE, // bDescriptorType - ENDPOINT_GENERAL, // bDescriptor - 0x00, // bmAttributes - 0x00, // bLockDelayUnits - LSB(0x0000), // wLockDelay - MSB(0x0000), // wLockDelay - - - - - - - - // Interface 1, Alternate Setting 0, Audio Streaming - Zero Bandwith - INTERFACE_DESCRIPTOR_LENGTH, // bLength - INTERFACE_DESCRIPTOR, // bDescriptorType - 0x02, // bInterfaceNumber - 0x00, // bAlternateSetting - 0x00, // bNumEndpoints - AUDIO_CLASS, // bInterfaceClass - SUBCLASS_AUDIOSTREAMING, // bInterfaceSubClass - 0x00, // bInterfaceProtocol - 0x00, // iInterface - - // Interface 1, Alternate Setting 1, Audio Streaming - Operational - INTERFACE_DESCRIPTOR_LENGTH, // bLength - INTERFACE_DESCRIPTOR, // bDescriptorType - 0x02, // bInterfaceNumber - 0x01, // bAlternateSetting - 0x01, // bNumEndpoints - AUDIO_CLASS, // bInterfaceClass - SUBCLASS_AUDIOSTREAMING, // bInterfaceSubClass - 0x00, // bInterfaceProtocol - 0x00, // iInterface - - // Audio Streaming Interface - STREAMING_INTERFACE_DESCRIPTOR_LENGTH, // bLength - INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType - SUBCLASS_AUDIOCONTROL, // bDescriptorSubtype - 0x05, // bTerminalLink (output terminal microphone) - 0x01, // bDelay - 0x01, // wFormatTag - 0x00, // wFormatTag - - // Audio Type I Format - FORMAT_TYPE_I_DESCRIPTOR_LENGTH, // bLength - INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType - SUBCLASS_AUDIOSTREAMING, // bDescriptorSubtype - FORMAT_TYPE_I, // bFormatType - channel_nb_out, // bNrChannels - 0x02, // bSubFrameSize - 0x10, // bBitResolution - 0x01, // bSamFreqType - (uint8_t)(LSB(FREQ_OUT)), // tSamFreq - (uint8_t)((FREQ_OUT >> 8) & 0xff), // tSamFreq - (uint8_t)((FREQ_OUT >> 16) & 0xff), // tSamFreq - - // Endpoint - Standard Descriptor - ENDPOINT_DESCRIPTOR_LENGTH + 2, // bLength - ENDPOINT_DESCRIPTOR, // bDescriptorType - PHY_TO_DESC(EPISO_IN), // bEndpointAddress - E_ISOCHRONOUS, // bmAttributes - (uint8_t)(LSB(PACKET_SIZE_ISO_OUT+channel_nb_out*2)), // wMaxPacketSize - (uint8_t)(MSB(PACKET_SIZE_ISO_OUT+channel_nb_out*2)), // wMaxPacketSize - 0x01, // bInterval - 0x00, // bRefresh - 0x00, // bSynchAddress - - // Endpoint - Audio Streaming - STREAMING_ENDPOINT_DESCRIPTOR_LENGTH, // bLength - ENDPOINT_DESCRIPTOR_TYPE, // bDescriptorType - ENDPOINT_GENERAL, // bDescriptor - 0x00, // bmAttributes - 0x00, // bLockDelayUnits - LSB(0x0000), // wLockDelay - MSB(0x0000), // wLockDelay - - // Terminator - 0 // bLength - }; - return configDescriptor; -} - -uint8_t * USBAudio::stringIinterfaceDesc() { - static uint8_t stringIinterfaceDescriptor[] = { - 0x0c, //bLength - STRING_DESCRIPTOR, //bDescriptorType 0x03 - 'A',0,'u',0,'d',0,'i',0,'o',0 //bString iInterface - Audio - }; - return stringIinterfaceDescriptor; -} - -uint8_t * USBAudio::stringIproductDesc() { - static uint8_t stringIproductDescriptor[] = { - 0x16, //bLength - STRING_DESCRIPTOR, //bDescriptorType 0x03 - 'M',0,'b',0,'e',0,'d',0,' ',0,'A',0,'u',0,'d',0,'i',0,'o',0 //bString iProduct - Mbed Audio - }; - return stringIproductDescriptor; -}
--- a/USBAudio/USBAudio.h Thu Jul 27 12:14:04 2017 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,337 +0,0 @@ -/* Copyright (c) 2010-2011 mbed.org, MIT License -* -* 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 USBAudio_H -#define USBAudio_H - -/* These headers are included for child class. */ -#include "USBEndpoints.h" -#include "USBDescriptor.h" -#include "USBDevice_Types.h" - -#include "USBDevice.h" -#include "Callback.h" - -/** -* USBAudio example -* -* @code -* #include "mbed.h" -* #include "USBAudio.h" -* -* Serial pc(USBTX, USBRX); -* -* // frequency: 48 kHz -* #define FREQ 48000 -* -* // 1 channel: mono -* #define NB_CHA 1 -* -* // length of an audio packet: each ms, we receive 48 * 16bits ->48 * 2 bytes. as there is one channel, the length will be 48 * 2 * 1 -* #define AUDIO_LENGTH_PACKET 48 * 2 * 1 -* -* // USBAudio -* USBAudio audio(FREQ, NB_CHA); -* -* int main() { -* int16_t buf[AUDIO_LENGTH_PACKET/2]; -* -* while (1) { -* // read an audio packet -* audio.read((uint8_t *)buf); -* -* -* // print packet received -* pc.printf("recv: "); -* for(int i = 0; i < AUDIO_LENGTH_PACKET/2; i++) { -* pc.printf("%d ", buf[i]); -* } -* pc.printf("\r\n"); -* } -* } -* @endcode -*/ -class USBAudio: public USBDevice { -public: - - /** - * Constructor - * - * @param frequency_in frequency in Hz (default: 48000) - * @param channel_nb_in channel number (1 or 2) (default: 1) - * @param frequency_out frequency in Hz (default: 8000) - * @param channel_nb_out_in channel number (1 or 2) (default: 1) - * @param vendor_id Your vendor_id - * @param product_id Your product_id - * @param product_release Your preoduct_release - */ - USBAudio(uint32_t frequency_in = 48000, uint8_t channel_nb_in = 1, uint32_t frequency_out = 8000, uint8_t channel_nb_out = 1, uint16_t vendor_id = 0x7bb8, uint16_t product_id = 0x1111, uint16_t product_release = 0x0100); - - /** - * Get current volume between 0.0 and 1.0 - * - * @returns volume - */ - float getVolume(); - - /** - * Read an audio packet. During a frame, only a single reading (you can't write and read an audio packet during the same frame)can be done using this method. Warning: Blocking - * - * @param buf pointer on a buffer which will be filled with an audio packet - * - * @returns true if successfull - */ - bool read(uint8_t * buf); - - /** - * Try to read an audio packet. During a frame, only a single reading (you can't write and read an audio packet during the same frame)can be done using this method. Warning: Non Blocking - * - * @param buf pointer on a buffer which will be filled if an audio packet is available - * - * @returns true if successfull - */ - bool readNB(uint8_t * buf); - - /** - * read last received packet if some. - * @param buf pointer on a buffer which will be filled if an audio packet is available - * - * @returns the packet length - */ - uint32_t readSync(uint8_t *buf); - - /** - * Write an audio packet. During a frame, only a single writing (you can't write and read an audio packet during the same frame)can be done using this method. - * - * @param buf pointer on the audio packet which will be sent - * @returns true if successful - */ - bool write(uint8_t * buf); - - /** Audio Jitter value*/ - enum AudioSampleCorrectType { - RemoveOneSample = -1, - NoCorrection = 0, - AddOneSample = 1 - }; - /** - * Write packet in endpoint fifo. assuming tx fifo is empty - * @param buf pointer on the audio packet which will be sent - * @param jitter_nb : AudioSampleCorrecttype - **/ - void writeSync(uint8_t *buf, AudioSampleCorrectType jitter_nb = NoCorrection ); - - /** - * Write and read an audio packet at the same time (on the same frame) - * - * @param buf_read pointer on a buffer which will be filled with an audio packet - * @param buf_write pointer on the audio packet which will be sent - * @returns true if successful - */ - bool readWrite(uint8_t * buf_read, uint8_t * buf_write); - - - /** attach a handler to update the volume - * - * @param function Function to attach - * - */ - void attach(void(*fptr)(void)) { - updateVol.attach(fptr); - } - /** attach a handler to Tx Done - * - * @param function Function to attach - * - */ - void attachTx(void(*fptr)(void)) { - txDone.attach(fptr); - } - /** attach a handler to Rx Done - * - * @param function Function to attach - * - */ - void attachRx(void(*fptr)(void)) { - rxDone.attach(fptr); - } - - /** Attach a nonstatic void/void member function to update the volume - * - * @param tptr Object pointer - * @param mptr Member function pointer - * - */ - template<typename T> - void attach(T *tptr, void(T::*mptr)(void)) { - updateVol.attach(tptr, mptr); - } - template<typename T> - void attachTx(T *tptr, void(T::*mptr)(void)) { - txDone.attach(tptr, mptr); - } - template<typename T> - void attachRx(T *tptr, void(T::*mptr)(void)) { - rxDone.attach(tptr, mptr); - } - - -protected: - - /* - * Called by USBDevice layer. Set configuration of the device. - * For instance, you can add all endpoints that you need on this function. - * - * @param configuration Number of the configuration - * @returns true if class handles this request - */ - virtual bool USBCallback_setConfiguration(uint8_t configuration); - - /* - * Called by USBDevice on Endpoint0 request. Warning: Called in ISR context - * This is used to handle extensions to standard requests - * and class specific requests - * - * @returns true if class handles this request - */ - virtual bool USBCallback_request(); - - /* - * Get string product descriptor - * - * @returns pointer to the string product descriptor - */ - virtual uint8_t * stringIproductDesc(); - - /* - * Get string interface descriptor - * - * @returns pointer to the string interface descriptor - */ - virtual uint8_t * stringIinterfaceDesc(); - - /* - * Get configuration descriptor - * - * @returns pointer to the configuration descriptor - */ - virtual uint8_t * configurationDesc(); - - /* - * Called by USBDevice layer. Set interface/alternate of the device. - * - * @param interface Number of the interface to be configured - * @param alternate Number of the alternate to be configured - * @returns true if class handles this request - */ - virtual bool USBCallback_setInterface(uint16_t interface, uint8_t alternate); - - /* - * Called by USBDevice on Endpoint0 request completion - * if the 'notify' flag has been set to true. Warning: Called in ISR context - * - * In this case it is used to indicate that a HID report has - * been received from the host on endpoint 0 - * - * @param buf buffer received on endpoint 0 - * @param length length of this buffer - */ - virtual void USBCallback_requestCompleted(uint8_t * buf, uint32_t length); - - /* - * Callback called on each Start of Frame event - */ - virtual void SOF(int frameNumber); - - /* - * Callback called when a packet is received - */ - virtual bool EPISO_OUT_callback(); - - /* - * Callback called when a packet has been sent - */ - virtual bool EPISO_IN_callback(); - -private: - - // stream available ? - volatile bool available; - - // interrupt OUT has been received - volatile bool interruptOUT; - - // interrupt IN has been received - volatile bool interruptIN; - - // audio packet has been written - volatile bool writeIN; - - // FREQ - uint32_t FREQ_OUT; - uint32_t FREQ_IN; - - // size of the maximum packet for the isochronous endpoint - uint32_t PACKET_SIZE_ISO_IN; - uint32_t PACKET_SIZE_ISO_OUT; - - // mono, stereo,... - uint8_t channel_nb_in; - uint8_t channel_nb_out; - - // channel config: master, left, right - uint8_t channel_config_in; - uint8_t channel_config_out; - - // mute state - uint8_t mute; - - // Volume Current Value - uint16_t volCur; - - // Volume Minimum Value - uint16_t volMin; - - // Volume Maximum Value - uint16_t volMax; - - // Volume Resolution - uint16_t volRes; - - // Buffer containing one audio packet (to be read) - volatile uint8_t * buf_stream_in; - - // Buffer containing one audio packet (to be written) - volatile uint8_t * buf_stream_out; - - // callback to update volume - Callback<void()> updateVol; - - // callback transmit Done - Callback<void()> txDone; - // callback transmit Done - Callback<void()> rxDone; - - // boolean showing that the SOF handler has been called. Useful for readNB. - volatile bool SOF_handler; - - volatile float volume; - -}; - -#endif
--- a/USBAudio/USBAudio_Types.h Thu Jul 27 12:14:04 2017 +0100 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,97 +0,0 @@ -/* Copyright (c) 2010-2011 mbed.org, MIT License -* -* 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 USBAUDIO_TYPES_H -#define USBAUDIO_TYPES_H - - -#define DEFAULT_CONFIGURATION (1) - -// Audio Request Codes -#define REQUEST_SET_CUR 0x01 -#define REQUEST_GET_CUR 0x81 -#define REQUEST_SET_MIN 0x02 -#define REQUEST_GET_MIN 0x82 -#define REQUEST_SET_MAX 0x03 -#define REQUEST_GET_MAX 0x83 -#define REQUEST_SET_RES 0x04 -#define REQUEST_GET_RES 0x84 - -#define MUTE_CONTROL 0x01 -#define VOLUME_CONTROL 0x02 - - -// Audio Descriptor Sizes -#define CONTROL_INTERFACE_DESCRIPTOR_LENGTH 0x09 -#define STREAMING_INTERFACE_DESCRIPTOR_LENGTH 0x07 -#define INPUT_TERMINAL_DESCRIPTOR_LENGTH 0x0C -#define OUTPUT_TERMINAL_DESCRIPTOR_LENGTH 0x09 -#define FEATURE_UNIT_DESCRIPTOR_LENGTH 0x09 -#define STREAMING_ENDPOINT_DESCRIPTOR_LENGTH 0x07 - -// Audio Format Type Descriptor Sizes -#define FORMAT_TYPE_I_DESCRIPTOR_LENGTH 0x0b - -#define AUDIO_CLASS 0x01 -#define SUBCLASS_AUDIOCONTROL 0x01 -#define SUBCLASS_AUDIOSTREAMING 0x02 - -// Audio Descriptor Types -#define INTERFACE_DESCRIPTOR_TYPE 0x24 -#define ENDPOINT_DESCRIPTOR_TYPE 0x25 - -// Audio Control Interface Descriptor Subtypes -#define CONTROL_HEADER 0x01 -#define CONTROL_INPUT_TERMINAL 0x02 -#define CONTROL_OUTPUT_TERMINAL 0x03 -#define CONTROL_FEATURE_UNIT 0x06 - -// USB Terminal Types -#define TERMINAL_USB_STREAMING 0x0101 - -// Predefined Audio Channel Configuration Bits -// Mono -#define CHANNEL_M 0x0000 -#define CHANNEL_L 0x0001 /* Left Front */ -#define CHANNEL_R 0x0002 /* Right Front */ - -// Feature Unit Control Bits -#define CONTROL_MUTE 0x0001 -#define CONTROL_VOLUME 0x0002 - -// Input Terminal Types -#define TERMINAL_MICROPHONE 0x0201 - -// Output Terminal Types -#define TERMINAL_SPEAKER 0x0301 -#define TERMINAL_HEADPHONES 0x0302 - -// Audio Streaming Interface Descriptor Subtypes -#define STREAMING_GENERAL 0x01 -#define STREAMING_FORMAT_TYPE 0x02 - -// Audio Data Format Type I Codes -#define FORMAT_PCM 0x0001 - -// Audio Format Types -#define FORMAT_TYPE_I 0x01 - -// Audio Endpoint Descriptor Subtypes -#define ENDPOINT_GENERAL 0x01 - -#endif