Samuel Mokrani
USBDevice stack
Dependents: erg USBSerial_HelloWorld Slingshot SuperScanner ... more
USBAudio/USBAudio.cpp@0:140cdf8e2d60, 2012-05-30 (annotated)
- Committer:
- samux
- Date:
- Wed May 30 18:28:11 2012 +0000
- Revision:
- 0:140cdf8e2d60
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| samux | 0:140cdf8e2d60 | 1 | /* Copyright (c) 2010-2011 mbed.org, MIT License |
| samux | 0:140cdf8e2d60 | 2 | * |
| samux | 0:140cdf8e2d60 | 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
| samux | 0:140cdf8e2d60 | 4 | * and associated documentation files (the "Software"), to deal in the Software without |
| samux | 0:140cdf8e2d60 | 5 | * restriction, including without limitation the rights to use, copy, modify, merge, publish, |
| samux | 0:140cdf8e2d60 | 6 | * distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the |
| samux | 0:140cdf8e2d60 | 7 | * Software is furnished to do so, subject to the following conditions: |
| samux | 0:140cdf8e2d60 | 8 | * |
| samux | 0:140cdf8e2d60 | 9 | * The above copyright notice and this permission notice shall be included in all copies or |
| samux | 0:140cdf8e2d60 | 10 | * substantial portions of the Software. |
| samux | 0:140cdf8e2d60 | 11 | * |
| samux | 0:140cdf8e2d60 | 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
| samux | 0:140cdf8e2d60 | 13 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| samux | 0:140cdf8e2d60 | 14 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
| samux | 0:140cdf8e2d60 | 15 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
| samux | 0:140cdf8e2d60 | 16 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
| samux | 0:140cdf8e2d60 | 17 | */ |
| samux | 0:140cdf8e2d60 | 18 | |
| samux | 0:140cdf8e2d60 | 19 | #include "stdint.h" |
| samux | 0:140cdf8e2d60 | 20 | #include "USBAudio.h" |
| samux | 0:140cdf8e2d60 | 21 | #include "USBAudio_Types.h" |
| samux | 0:140cdf8e2d60 | 22 | |
| samux | 0:140cdf8e2d60 | 23 | |
| samux | 0:140cdf8e2d60 | 24 | |
| samux | 0:140cdf8e2d60 | 25 | 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) { |
| samux | 0:140cdf8e2d60 | 26 | mute = 0; |
| samux | 0:140cdf8e2d60 | 27 | volCur = 0x0080; |
| samux | 0:140cdf8e2d60 | 28 | volMin = 0x0000; |
| samux | 0:140cdf8e2d60 | 29 | volMax = 0x0100; |
| samux | 0:140cdf8e2d60 | 30 | volRes = 0x0004; |
| samux | 0:140cdf8e2d60 | 31 | available = false; |
| samux | 0:140cdf8e2d60 | 32 | |
| samux | 0:140cdf8e2d60 | 33 | FREQ_IN = frequency_in; |
| samux | 0:140cdf8e2d60 | 34 | FREQ_OUT = frequency_out; |
| samux | 0:140cdf8e2d60 | 35 | |
| samux | 0:140cdf8e2d60 | 36 | this->channel_nb_in = channel_nb_in; |
| samux | 0:140cdf8e2d60 | 37 | this->channel_nb_out = channel_nb_out; |
| samux | 0:140cdf8e2d60 | 38 | |
| samux | 0:140cdf8e2d60 | 39 | // stereo -> *2, mono -> *1 |
| samux | 0:140cdf8e2d60 | 40 | PACKET_SIZE_ISO_IN = (FREQ_IN / 500) * channel_nb_in; |
| samux | 0:140cdf8e2d60 | 41 | PACKET_SIZE_ISO_OUT = (FREQ_OUT / 500) * channel_nb_out; |
| samux | 0:140cdf8e2d60 | 42 | |
| samux | 0:140cdf8e2d60 | 43 | // STEREO -> left and right |
| samux | 0:140cdf8e2d60 | 44 | channel_config_in = (channel_nb_in == 1) ? CHANNEL_M : CHANNEL_L + CHANNEL_R; |
| samux | 0:140cdf8e2d60 | 45 | channel_config_out = (channel_nb_out == 1) ? CHANNEL_M : CHANNEL_L + CHANNEL_R; |
| samux | 0:140cdf8e2d60 | 46 | |
| samux | 0:140cdf8e2d60 | 47 | SOF_handler = false; |
| samux | 0:140cdf8e2d60 | 48 | |
| samux | 0:140cdf8e2d60 | 49 | buf_stream_out = NULL; |
| samux | 0:140cdf8e2d60 | 50 | buf_stream_in = NULL; |
| samux | 0:140cdf8e2d60 | 51 | |
| samux | 0:140cdf8e2d60 | 52 | interruptOUT = false; |
| samux | 0:140cdf8e2d60 | 53 | writeIN = false; |
| samux | 0:140cdf8e2d60 | 54 | interruptIN = false; |
| samux | 0:140cdf8e2d60 | 55 | available = false; |
| samux | 0:140cdf8e2d60 | 56 | |
| samux | 0:140cdf8e2d60 | 57 | volume = 0; |
| samux | 0:140cdf8e2d60 | 58 | |
| samux | 0:140cdf8e2d60 | 59 | // connect the device |
| samux | 0:140cdf8e2d60 | 60 | USBDevice::connect(); |
| samux | 0:140cdf8e2d60 | 61 | } |
| samux | 0:140cdf8e2d60 | 62 | |
| samux | 0:140cdf8e2d60 | 63 | bool USBAudio::read(uint8_t * buf) { |
| samux | 0:140cdf8e2d60 | 64 | buf_stream_in = buf; |
| samux | 0:140cdf8e2d60 | 65 | SOF_handler = false; |
| samux | 0:140cdf8e2d60 | 66 | while (!available || !SOF_handler); |
| samux | 0:140cdf8e2d60 | 67 | available = false; |
| samux | 0:140cdf8e2d60 | 68 | return true; |
| samux | 0:140cdf8e2d60 | 69 | } |
| samux | 0:140cdf8e2d60 | 70 | |
| samux | 0:140cdf8e2d60 | 71 | bool USBAudio::readNB(uint8_t * buf) { |
| samux | 0:140cdf8e2d60 | 72 | buf_stream_in = buf; |
| samux | 0:140cdf8e2d60 | 73 | SOF_handler = false; |
| samux | 0:140cdf8e2d60 | 74 | while (!SOF_handler); |
| samux | 0:140cdf8e2d60 | 75 | if (available) { |
| samux | 0:140cdf8e2d60 | 76 | available = false; |
| samux | 0:140cdf8e2d60 | 77 | buf_stream_in = NULL; |
| samux | 0:140cdf8e2d60 | 78 | return true; |
| samux | 0:140cdf8e2d60 | 79 | } |
| samux | 0:140cdf8e2d60 | 80 | return false; |
| samux | 0:140cdf8e2d60 | 81 | } |
| samux | 0:140cdf8e2d60 | 82 | |
| samux | 0:140cdf8e2d60 | 83 | bool USBAudio::readWrite(uint8_t * buf_read, uint8_t * buf_write) { |
| samux | 0:140cdf8e2d60 | 84 | buf_stream_in = buf_read; |
| samux | 0:140cdf8e2d60 | 85 | SOF_handler = false; |
| samux | 0:140cdf8e2d60 | 86 | writeIN = false; |
| samux | 0:140cdf8e2d60 | 87 | if (interruptIN) { |
| samux | 0:140cdf8e2d60 | 88 | USBDevice::writeNB(EP3IN, buf_write, PACKET_SIZE_ISO_OUT, PACKET_SIZE_ISO_OUT); |
| samux | 0:140cdf8e2d60 | 89 | } else { |
| samux | 0:140cdf8e2d60 | 90 | buf_stream_out = buf_write; |
| samux | 0:140cdf8e2d60 | 91 | } |
| samux | 0:140cdf8e2d60 | 92 | while (!available); |
| samux | 0:140cdf8e2d60 | 93 | if (interruptIN) { |
| samux | 0:140cdf8e2d60 | 94 | while (!writeIN); |
| samux | 0:140cdf8e2d60 | 95 | } |
| samux | 0:140cdf8e2d60 | 96 | while (!SOF_handler); |
| samux | 0:140cdf8e2d60 | 97 | return true; |
| samux | 0:140cdf8e2d60 | 98 | } |
| samux | 0:140cdf8e2d60 | 99 | |
| samux | 0:140cdf8e2d60 | 100 | |
| samux | 0:140cdf8e2d60 | 101 | bool USBAudio::write(uint8_t * buf) { |
| samux | 0:140cdf8e2d60 | 102 | writeIN = false; |
| samux | 0:140cdf8e2d60 | 103 | SOF_handler = false; |
| samux | 0:140cdf8e2d60 | 104 | if (interruptIN) { |
| samux | 0:140cdf8e2d60 | 105 | USBDevice::writeNB(EP3IN, buf, PACKET_SIZE_ISO_OUT, PACKET_SIZE_ISO_OUT); |
| samux | 0:140cdf8e2d60 | 106 | } else { |
| samux | 0:140cdf8e2d60 | 107 | buf_stream_out = buf; |
| samux | 0:140cdf8e2d60 | 108 | } |
| samux | 0:140cdf8e2d60 | 109 | while (!SOF_handler); |
| samux | 0:140cdf8e2d60 | 110 | if (interruptIN) { |
| samux | 0:140cdf8e2d60 | 111 | while (!writeIN); |
| samux | 0:140cdf8e2d60 | 112 | } |
| samux | 0:140cdf8e2d60 | 113 | return true; |
| samux | 0:140cdf8e2d60 | 114 | } |
| samux | 0:140cdf8e2d60 | 115 | |
| samux | 0:140cdf8e2d60 | 116 | |
| samux | 0:140cdf8e2d60 | 117 | float USBAudio::getVolume() { |
| samux | 0:140cdf8e2d60 | 118 | return (mute) ? 0.0 : volume; |
| samux | 0:140cdf8e2d60 | 119 | } |
| samux | 0:140cdf8e2d60 | 120 | |
| samux | 0:140cdf8e2d60 | 121 | |
| samux | 0:140cdf8e2d60 | 122 | bool USBAudio::EP3_OUT_callback() { |
| samux | 0:140cdf8e2d60 | 123 | uint32_t size = 0; |
| samux | 0:140cdf8e2d60 | 124 | interruptOUT = true; |
| samux | 0:140cdf8e2d60 | 125 | if (buf_stream_in != NULL) { |
| samux | 0:140cdf8e2d60 | 126 | readEP(EP3OUT, (uint8_t *)buf_stream_in, &size, PACKET_SIZE_ISO_IN); |
| samux | 0:140cdf8e2d60 | 127 | available = true; |
| samux | 0:140cdf8e2d60 | 128 | buf_stream_in = NULL; |
| samux | 0:140cdf8e2d60 | 129 | } |
| samux | 0:140cdf8e2d60 | 130 | readStart(EP3OUT, PACKET_SIZE_ISO_IN); |
| samux | 0:140cdf8e2d60 | 131 | return false; |
| samux | 0:140cdf8e2d60 | 132 | } |
| samux | 0:140cdf8e2d60 | 133 | |
| samux | 0:140cdf8e2d60 | 134 | |
| samux | 0:140cdf8e2d60 | 135 | bool USBAudio::EP3_IN_callback() { |
| samux | 0:140cdf8e2d60 | 136 | interruptIN = true; |
| samux | 0:140cdf8e2d60 | 137 | writeIN = true; |
| samux | 0:140cdf8e2d60 | 138 | return true; |
| samux | 0:140cdf8e2d60 | 139 | } |
| samux | 0:140cdf8e2d60 | 140 | |
| samux | 0:140cdf8e2d60 | 141 | |
| samux | 0:140cdf8e2d60 | 142 | |
| samux | 0:140cdf8e2d60 | 143 | // Called in ISR context on each start of frame |
| samux | 0:140cdf8e2d60 | 144 | void USBAudio::SOF(int frameNumber) { |
| samux | 0:140cdf8e2d60 | 145 | uint32_t size = 0; |
| samux | 0:140cdf8e2d60 | 146 | |
| samux | 0:140cdf8e2d60 | 147 | if (!interruptOUT) { |
| samux | 0:140cdf8e2d60 | 148 | // read the isochronous endpoint |
| samux | 0:140cdf8e2d60 | 149 | if (buf_stream_in != NULL) { |
| samux | 0:140cdf8e2d60 | 150 | if (USBDevice::readEP_NB(EP3OUT, (uint8_t *)buf_stream_in, &size, PACKET_SIZE_ISO_IN)) { |
| samux | 0:140cdf8e2d60 | 151 | if (size) { |
| samux | 0:140cdf8e2d60 | 152 | available = true; |
| samux | 0:140cdf8e2d60 | 153 | readStart(EP3OUT, PACKET_SIZE_ISO_IN); |
| samux | 0:140cdf8e2d60 | 154 | buf_stream_in = NULL; |
| samux | 0:140cdf8e2d60 | 155 | } |
| samux | 0:140cdf8e2d60 | 156 | } |
| samux | 0:140cdf8e2d60 | 157 | } |
| samux | 0:140cdf8e2d60 | 158 | } |
| samux | 0:140cdf8e2d60 | 159 | |
| samux | 0:140cdf8e2d60 | 160 | if (!interruptIN) { |
| samux | 0:140cdf8e2d60 | 161 | // write if needed |
| samux | 0:140cdf8e2d60 | 162 | if (buf_stream_out != NULL) { |
| samux | 0:140cdf8e2d60 | 163 | USBDevice::writeNB(EP3IN, (uint8_t *)buf_stream_out, PACKET_SIZE_ISO_OUT, PACKET_SIZE_ISO_OUT); |
| samux | 0:140cdf8e2d60 | 164 | buf_stream_out = NULL; |
| samux | 0:140cdf8e2d60 | 165 | } |
| samux | 0:140cdf8e2d60 | 166 | } |
| samux | 0:140cdf8e2d60 | 167 | |
| samux | 0:140cdf8e2d60 | 168 | SOF_handler = true; |
| samux | 0:140cdf8e2d60 | 169 | } |
| samux | 0:140cdf8e2d60 | 170 | |
| samux | 0:140cdf8e2d60 | 171 | |
| samux | 0:140cdf8e2d60 | 172 | // Called in ISR context |
| samux | 0:140cdf8e2d60 | 173 | // Set configuration. Return false if the configuration is not supported. |
| samux | 0:140cdf8e2d60 | 174 | bool USBAudio::USBCallback_setConfiguration(uint8_t configuration) { |
| samux | 0:140cdf8e2d60 | 175 | if (configuration != DEFAULT_CONFIGURATION) { |
| samux | 0:140cdf8e2d60 | 176 | return false; |
| samux | 0:140cdf8e2d60 | 177 | } |
| samux | 0:140cdf8e2d60 | 178 | |
| samux | 0:140cdf8e2d60 | 179 | // Configure isochronous endpoint |
| samux | 0:140cdf8e2d60 | 180 | realiseEndpoint(EP3OUT, PACKET_SIZE_ISO_IN, ISOCHRONOUS); |
| samux | 0:140cdf8e2d60 | 181 | realiseEndpoint(EP3IN, PACKET_SIZE_ISO_OUT, ISOCHRONOUS); |
| samux | 0:140cdf8e2d60 | 182 | |
| samux | 0:140cdf8e2d60 | 183 | // activate readings on this endpoint |
| samux | 0:140cdf8e2d60 | 184 | readStart(EP3OUT, PACKET_SIZE_ISO_IN); |
| samux | 0:140cdf8e2d60 | 185 | return true; |
| samux | 0:140cdf8e2d60 | 186 | } |
| samux | 0:140cdf8e2d60 | 187 | |
| samux | 0:140cdf8e2d60 | 188 | |
| samux | 0:140cdf8e2d60 | 189 | // Called in ISR context |
| samux | 0:140cdf8e2d60 | 190 | // Set alternate setting. Return false if the alternate setting is not supported |
| samux | 0:140cdf8e2d60 | 191 | bool USBAudio::USBCallback_setInterface(uint16_t interface, uint8_t alternate) { |
| samux | 0:140cdf8e2d60 | 192 | if (interface == 0 && alternate == 0) { |
| samux | 0:140cdf8e2d60 | 193 | return true; |
| samux | 0:140cdf8e2d60 | 194 | } |
| samux | 0:140cdf8e2d60 | 195 | if (interface == 1 && (alternate == 0 || alternate == 1)) { |
| samux | 0:140cdf8e2d60 | 196 | return true; |
| samux | 0:140cdf8e2d60 | 197 | } |
| samux | 0:140cdf8e2d60 | 198 | if (interface == 2 && (alternate == 0 || alternate == 1)) { |
| samux | 0:140cdf8e2d60 | 199 | return true; |
| samux | 0:140cdf8e2d60 | 200 | } |
| samux | 0:140cdf8e2d60 | 201 | return false; |
| samux | 0:140cdf8e2d60 | 202 | } |
| samux | 0:140cdf8e2d60 | 203 | |
| samux | 0:140cdf8e2d60 | 204 | |
| samux | 0:140cdf8e2d60 | 205 | |
| samux | 0:140cdf8e2d60 | 206 | // Called in ISR context |
| samux | 0:140cdf8e2d60 | 207 | // Called by USBDevice on Endpoint0 request |
| samux | 0:140cdf8e2d60 | 208 | // This is used to handle extensions to standard requests and class specific requests. |
| samux | 0:140cdf8e2d60 | 209 | // Return true if class handles this request |
| samux | 0:140cdf8e2d60 | 210 | bool USBAudio::USBCallback_request() { |
| samux | 0:140cdf8e2d60 | 211 | bool success = false; |
| samux | 0:140cdf8e2d60 | 212 | CONTROL_TRANSFER * transfer = getTransferPtr(); |
| samux | 0:140cdf8e2d60 | 213 | |
| samux | 0:140cdf8e2d60 | 214 | // Process class-specific requests |
| samux | 0:140cdf8e2d60 | 215 | if (transfer->setup.bmRequestType.Type == CLASS_TYPE) { |
| samux | 0:140cdf8e2d60 | 216 | |
| samux | 0:140cdf8e2d60 | 217 | // Feature Unit: Interface = 0, ID = 2 |
| samux | 0:140cdf8e2d60 | 218 | if (transfer->setup.wIndex == 0x0200) { |
| samux | 0:140cdf8e2d60 | 219 | |
| samux | 0:140cdf8e2d60 | 220 | // Master Channel |
| samux | 0:140cdf8e2d60 | 221 | if ((transfer->setup.wValue & 0xff) == 0) { |
| samux | 0:140cdf8e2d60 | 222 | |
| samux | 0:140cdf8e2d60 | 223 | switch (transfer->setup.wValue >> 8) { |
| samux | 0:140cdf8e2d60 | 224 | case MUTE_CONTROL: |
| samux | 0:140cdf8e2d60 | 225 | switch (transfer->setup.bRequest) { |
| samux | 0:140cdf8e2d60 | 226 | case REQUEST_GET_CUR: |
| samux | 0:140cdf8e2d60 | 227 | transfer->remaining = 1; |
| samux | 0:140cdf8e2d60 | 228 | transfer->ptr = &mute; |
| samux | 0:140cdf8e2d60 | 229 | transfer->direction = DEVICE_TO_HOST; |
| samux | 0:140cdf8e2d60 | 230 | success = true; |
| samux | 0:140cdf8e2d60 | 231 | break; |
| samux | 0:140cdf8e2d60 | 232 | |
| samux | 0:140cdf8e2d60 | 233 | case REQUEST_SET_CUR: |
| samux | 0:140cdf8e2d60 | 234 | transfer->remaining = 1; |
| samux | 0:140cdf8e2d60 | 235 | transfer->notify = true; |
| samux | 0:140cdf8e2d60 | 236 | transfer->direction = HOST_TO_DEVICE; |
| samux | 0:140cdf8e2d60 | 237 | success = true; |
| samux | 0:140cdf8e2d60 | 238 | break; |
| samux | 0:140cdf8e2d60 | 239 | default: |
| samux | 0:140cdf8e2d60 | 240 | break; |
| samux | 0:140cdf8e2d60 | 241 | } |
| samux | 0:140cdf8e2d60 | 242 | break; |
| samux | 0:140cdf8e2d60 | 243 | case VOLUME_CONTROL: |
| samux | 0:140cdf8e2d60 | 244 | switch (transfer->setup.bRequest) { |
| samux | 0:140cdf8e2d60 | 245 | case REQUEST_GET_CUR: |
| samux | 0:140cdf8e2d60 | 246 | transfer->remaining = 2; |
| samux | 0:140cdf8e2d60 | 247 | transfer->ptr = (uint8_t *)&volCur; |
| samux | 0:140cdf8e2d60 | 248 | transfer->direction = DEVICE_TO_HOST; |
| samux | 0:140cdf8e2d60 | 249 | success = true; |
| samux | 0:140cdf8e2d60 | 250 | break; |
| samux | 0:140cdf8e2d60 | 251 | case REQUEST_GET_MIN: |
| samux | 0:140cdf8e2d60 | 252 | transfer->remaining = 2; |
| samux | 0:140cdf8e2d60 | 253 | transfer->ptr = (uint8_t *)&volMin; |
| samux | 0:140cdf8e2d60 | 254 | transfer->direction = DEVICE_TO_HOST; |
| samux | 0:140cdf8e2d60 | 255 | success = true; |
| samux | 0:140cdf8e2d60 | 256 | break; |
| samux | 0:140cdf8e2d60 | 257 | case REQUEST_GET_MAX: |
| samux | 0:140cdf8e2d60 | 258 | transfer->remaining = 2; |
| samux | 0:140cdf8e2d60 | 259 | transfer->ptr = (uint8_t *)&volMax; |
| samux | 0:140cdf8e2d60 | 260 | transfer->direction = DEVICE_TO_HOST; |
| samux | 0:140cdf8e2d60 | 261 | success = true; |
| samux | 0:140cdf8e2d60 | 262 | break; |
| samux | 0:140cdf8e2d60 | 263 | case REQUEST_GET_RES: |
| samux | 0:140cdf8e2d60 | 264 | transfer->remaining = 2; |
| samux | 0:140cdf8e2d60 | 265 | transfer->ptr = (uint8_t *)&volRes; |
| samux | 0:140cdf8e2d60 | 266 | transfer->direction = DEVICE_TO_HOST; |
| samux | 0:140cdf8e2d60 | 267 | success = true; |
| samux | 0:140cdf8e2d60 | 268 | break; |
| samux | 0:140cdf8e2d60 | 269 | |
| samux | 0:140cdf8e2d60 | 270 | case REQUEST_SET_CUR: |
| samux | 0:140cdf8e2d60 | 271 | transfer->remaining = 2; |
| samux | 0:140cdf8e2d60 | 272 | transfer->notify = true; |
| samux | 0:140cdf8e2d60 | 273 | transfer->direction = HOST_TO_DEVICE; |
| samux | 0:140cdf8e2d60 | 274 | success = true; |
| samux | 0:140cdf8e2d60 | 275 | break; |
| samux | 0:140cdf8e2d60 | 276 | case REQUEST_SET_MIN: |
| samux | 0:140cdf8e2d60 | 277 | transfer->remaining = 2; |
| samux | 0:140cdf8e2d60 | 278 | transfer->notify = true; |
| samux | 0:140cdf8e2d60 | 279 | transfer->direction = HOST_TO_DEVICE; |
| samux | 0:140cdf8e2d60 | 280 | success = true; |
| samux | 0:140cdf8e2d60 | 281 | break; |
| samux | 0:140cdf8e2d60 | 282 | case REQUEST_SET_MAX: |
| samux | 0:140cdf8e2d60 | 283 | transfer->remaining = 2; |
| samux | 0:140cdf8e2d60 | 284 | transfer->notify = true; |
| samux | 0:140cdf8e2d60 | 285 | transfer->direction = HOST_TO_DEVICE; |
| samux | 0:140cdf8e2d60 | 286 | success = true; |
| samux | 0:140cdf8e2d60 | 287 | break; |
| samux | 0:140cdf8e2d60 | 288 | case REQUEST_SET_RES: |
| samux | 0:140cdf8e2d60 | 289 | transfer->remaining = 2; |
| samux | 0:140cdf8e2d60 | 290 | transfer->notify = true; |
| samux | 0:140cdf8e2d60 | 291 | transfer->direction = HOST_TO_DEVICE; |
| samux | 0:140cdf8e2d60 | 292 | success = true; |
| samux | 0:140cdf8e2d60 | 293 | break; |
| samux | 0:140cdf8e2d60 | 294 | } |
| samux | 0:140cdf8e2d60 | 295 | break; |
| samux | 0:140cdf8e2d60 | 296 | default: |
| samux | 0:140cdf8e2d60 | 297 | break; |
| samux | 0:140cdf8e2d60 | 298 | } |
| samux | 0:140cdf8e2d60 | 299 | } |
| samux | 0:140cdf8e2d60 | 300 | } |
| samux | 0:140cdf8e2d60 | 301 | } |
| samux | 0:140cdf8e2d60 | 302 | return success; |
| samux | 0:140cdf8e2d60 | 303 | } |
| samux | 0:140cdf8e2d60 | 304 | |
| samux | 0:140cdf8e2d60 | 305 | |
| samux | 0:140cdf8e2d60 | 306 | // Called in ISR context when a data OUT stage has been performed |
| samux | 0:140cdf8e2d60 | 307 | void USBAudio::USBCallback_requestCompleted(uint8_t * buf, uint32_t length) { |
| samux | 0:140cdf8e2d60 | 308 | if ((length == 1) || (length == 2)) { |
| samux | 0:140cdf8e2d60 | 309 | uint16_t data = (length == 1) ? *buf : *((uint16_t *)buf); |
| samux | 0:140cdf8e2d60 | 310 | CONTROL_TRANSFER * transfer = getTransferPtr(); |
| samux | 0:140cdf8e2d60 | 311 | switch (transfer->setup.wValue >> 8) { |
| samux | 0:140cdf8e2d60 | 312 | case MUTE_CONTROL: |
| samux | 0:140cdf8e2d60 | 313 | switch (transfer->setup.bRequest) { |
| samux | 0:140cdf8e2d60 | 314 | case REQUEST_SET_CUR: |
| samux | 0:140cdf8e2d60 | 315 | mute = data & 0xff; |
| samux | 0:140cdf8e2d60 | 316 | updateVol.call(); |
| samux | 0:140cdf8e2d60 | 317 | break; |
| samux | 0:140cdf8e2d60 | 318 | default: |
| samux | 0:140cdf8e2d60 | 319 | break; |
| samux | 0:140cdf8e2d60 | 320 | } |
| samux | 0:140cdf8e2d60 | 321 | break; |
| samux | 0:140cdf8e2d60 | 322 | case VOLUME_CONTROL: |
| samux | 0:140cdf8e2d60 | 323 | switch (transfer->setup.bRequest) { |
| samux | 0:140cdf8e2d60 | 324 | case REQUEST_SET_CUR: |
| samux | 0:140cdf8e2d60 | 325 | volCur = data; |
| samux | 0:140cdf8e2d60 | 326 | volume = (float)volCur/(float)volMax; |
| samux | 0:140cdf8e2d60 | 327 | updateVol.call(); |
| samux | 0:140cdf8e2d60 | 328 | break; |
| samux | 0:140cdf8e2d60 | 329 | default: |
| samux | 0:140cdf8e2d60 | 330 | break; |
| samux | 0:140cdf8e2d60 | 331 | } |
| samux | 0:140cdf8e2d60 | 332 | break; |
| samux | 0:140cdf8e2d60 | 333 | default: |
| samux | 0:140cdf8e2d60 | 334 | break; |
| samux | 0:140cdf8e2d60 | 335 | } |
| samux | 0:140cdf8e2d60 | 336 | } |
| samux | 0:140cdf8e2d60 | 337 | } |
| samux | 0:140cdf8e2d60 | 338 | |
| samux | 0:140cdf8e2d60 | 339 | |
| samux | 0:140cdf8e2d60 | 340 | |
| samux | 0:140cdf8e2d60 | 341 | #define TOTAL_DESCRIPTOR_LENGTH ((1 * CONFIGURATION_DESCRIPTOR_LENGTH) \ |
| samux | 0:140cdf8e2d60 | 342 | + (5 * INTERFACE_DESCRIPTOR_LENGTH) \ |
| samux | 0:140cdf8e2d60 | 343 | + (1 * CONTROL_INTERFACE_DESCRIPTOR_LENGTH + 1) \ |
| samux | 0:140cdf8e2d60 | 344 | + (2 * INPUT_TERMINAL_DESCRIPTOR_LENGTH) \ |
| samux | 0:140cdf8e2d60 | 345 | + (1 * FEATURE_UNIT_DESCRIPTOR_LENGTH) \ |
| samux | 0:140cdf8e2d60 | 346 | + (2 * OUTPUT_TERMINAL_DESCRIPTOR_LENGTH) \ |
| samux | 0:140cdf8e2d60 | 347 | + (2 * STREAMING_INTERFACE_DESCRIPTOR_LENGTH) \ |
| samux | 0:140cdf8e2d60 | 348 | + (2 * FORMAT_TYPE_I_DESCRIPTOR_LENGTH) \ |
| samux | 0:140cdf8e2d60 | 349 | + (2 * (ENDPOINT_DESCRIPTOR_LENGTH + 2)) \ |
| samux | 0:140cdf8e2d60 | 350 | + (2 * STREAMING_ENDPOINT_DESCRIPTOR_LENGTH) ) |
| samux | 0:140cdf8e2d60 | 351 | |
| samux | 0:140cdf8e2d60 | 352 | #define TOTAL_CONTROL_INTF_LENGTH (CONTROL_INTERFACE_DESCRIPTOR_LENGTH + 1 + \ |
| samux | 0:140cdf8e2d60 | 353 | 2*INPUT_TERMINAL_DESCRIPTOR_LENGTH + \ |
| samux | 0:140cdf8e2d60 | 354 | FEATURE_UNIT_DESCRIPTOR_LENGTH + \ |
| samux | 0:140cdf8e2d60 | 355 | 2*OUTPUT_TERMINAL_DESCRIPTOR_LENGTH) |
| samux | 0:140cdf8e2d60 | 356 | |
| samux | 0:140cdf8e2d60 | 357 | uint8_t * USBAudio::configurationDesc() { |
| samux | 0:140cdf8e2d60 | 358 | static uint8_t configDescriptor[] = { |
| samux | 0:140cdf8e2d60 | 359 | // Configuration 1 |
| samux | 0:140cdf8e2d60 | 360 | CONFIGURATION_DESCRIPTOR_LENGTH, // bLength |
| samux | 0:140cdf8e2d60 | 361 | CONFIGURATION_DESCRIPTOR, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 362 | LSB(TOTAL_DESCRIPTOR_LENGTH), // wTotalLength (LSB) |
| samux | 0:140cdf8e2d60 | 363 | MSB(TOTAL_DESCRIPTOR_LENGTH), // wTotalLength (MSB) |
| samux | 0:140cdf8e2d60 | 364 | 0x03, // bNumInterfaces |
| samux | 0:140cdf8e2d60 | 365 | DEFAULT_CONFIGURATION, // bConfigurationValue |
| samux | 0:140cdf8e2d60 | 366 | 0x00, // iConfiguration |
| samux | 0:140cdf8e2d60 | 367 | 0x80, // bmAttributes |
| samux | 0:140cdf8e2d60 | 368 | 50, // bMaxPower |
| samux | 0:140cdf8e2d60 | 369 | |
| samux | 0:140cdf8e2d60 | 370 | // Interface 0, Alternate Setting 0, Audio Control |
| samux | 0:140cdf8e2d60 | 371 | INTERFACE_DESCRIPTOR_LENGTH, // bLength |
| samux | 0:140cdf8e2d60 | 372 | INTERFACE_DESCRIPTOR, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 373 | 0x00, // bInterfaceNumber |
| samux | 0:140cdf8e2d60 | 374 | 0x00, // bAlternateSetting |
| samux | 0:140cdf8e2d60 | 375 | 0x00, // bNumEndpoints |
| samux | 0:140cdf8e2d60 | 376 | AUDIO_CLASS, // bInterfaceClass |
| samux | 0:140cdf8e2d60 | 377 | SUBCLASS_AUDIOCONTROL, // bInterfaceSubClass |
| samux | 0:140cdf8e2d60 | 378 | 0x00, // bInterfaceProtocol |
| samux | 0:140cdf8e2d60 | 379 | 0x00, // iInterface |
| samux | 0:140cdf8e2d60 | 380 | |
| samux | 0:140cdf8e2d60 | 381 | |
| samux | 0:140cdf8e2d60 | 382 | // Audio Control Interface |
| samux | 0:140cdf8e2d60 | 383 | CONTROL_INTERFACE_DESCRIPTOR_LENGTH + 1,// bLength |
| samux | 0:140cdf8e2d60 | 384 | INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 385 | CONTROL_HEADER, // bDescriptorSubtype |
| samux | 0:140cdf8e2d60 | 386 | LSB(0x0100), // bcdADC (LSB) |
| samux | 0:140cdf8e2d60 | 387 | MSB(0x0100), // bcdADC (MSB) |
| samux | 0:140cdf8e2d60 | 388 | LSB(TOTAL_CONTROL_INTF_LENGTH), // wTotalLength |
| samux | 0:140cdf8e2d60 | 389 | MSB(TOTAL_CONTROL_INTF_LENGTH), // wTotalLength |
| samux | 0:140cdf8e2d60 | 390 | 0x02, // bInCollection |
| samux | 0:140cdf8e2d60 | 391 | 0x01, // baInterfaceNr |
| samux | 0:140cdf8e2d60 | 392 | 0x02, // baInterfaceNr |
| samux | 0:140cdf8e2d60 | 393 | |
| samux | 0:140cdf8e2d60 | 394 | // Audio Input Terminal (Speaker) |
| samux | 0:140cdf8e2d60 | 395 | INPUT_TERMINAL_DESCRIPTOR_LENGTH, // bLength |
| samux | 0:140cdf8e2d60 | 396 | INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 397 | CONTROL_INPUT_TERMINAL, // bDescriptorSubtype |
| samux | 0:140cdf8e2d60 | 398 | 0x01, // bTerminalID |
| samux | 0:140cdf8e2d60 | 399 | LSB(TERMINAL_USB_STREAMING), // wTerminalType |
| samux | 0:140cdf8e2d60 | 400 | MSB(TERMINAL_USB_STREAMING), // wTerminalType |
| samux | 0:140cdf8e2d60 | 401 | 0x00, // bAssocTerminal |
| samux | 0:140cdf8e2d60 | 402 | channel_nb_in, // bNrChannels |
| samux | 0:140cdf8e2d60 | 403 | LSB(channel_config_in), // wChannelConfig |
| samux | 0:140cdf8e2d60 | 404 | MSB(channel_config_in), // wChannelConfig |
| samux | 0:140cdf8e2d60 | 405 | 0x00, // iChannelNames |
| samux | 0:140cdf8e2d60 | 406 | 0x00, // iTerminal |
| samux | 0:140cdf8e2d60 | 407 | |
| samux | 0:140cdf8e2d60 | 408 | // Audio Feature Unit (Speaker) |
| samux | 0:140cdf8e2d60 | 409 | FEATURE_UNIT_DESCRIPTOR_LENGTH, // bLength |
| samux | 0:140cdf8e2d60 | 410 | INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 411 | CONTROL_FEATURE_UNIT, // bDescriptorSubtype |
| samux | 0:140cdf8e2d60 | 412 | 0x02, // bUnitID |
| samux | 0:140cdf8e2d60 | 413 | 0x01, // bSourceID |
| samux | 0:140cdf8e2d60 | 414 | 0x01, // bControlSize |
| samux | 0:140cdf8e2d60 | 415 | CONTROL_MUTE | |
| samux | 0:140cdf8e2d60 | 416 | CONTROL_VOLUME, // bmaControls(0) |
| samux | 0:140cdf8e2d60 | 417 | 0x00, // bmaControls(1) |
| samux | 0:140cdf8e2d60 | 418 | 0x00, // iTerminal |
| samux | 0:140cdf8e2d60 | 419 | |
| samux | 0:140cdf8e2d60 | 420 | // Audio Output Terminal (Speaker) |
| samux | 0:140cdf8e2d60 | 421 | OUTPUT_TERMINAL_DESCRIPTOR_LENGTH, // bLength |
| samux | 0:140cdf8e2d60 | 422 | INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 423 | CONTROL_OUTPUT_TERMINAL, // bDescriptorSubtype |
| samux | 0:140cdf8e2d60 | 424 | 0x03, // bTerminalID |
| samux | 0:140cdf8e2d60 | 425 | LSB(TERMINAL_SPEAKER), // wTerminalType |
| samux | 0:140cdf8e2d60 | 426 | MSB(TERMINAL_SPEAKER), // wTerminalType |
| samux | 0:140cdf8e2d60 | 427 | 0x00, // bAssocTerminal |
| samux | 0:140cdf8e2d60 | 428 | 0x02, // bSourceID |
| samux | 0:140cdf8e2d60 | 429 | 0x00, // iTerminal |
| samux | 0:140cdf8e2d60 | 430 | |
| samux | 0:140cdf8e2d60 | 431 | |
| samux | 0:140cdf8e2d60 | 432 | // Audio Input Terminal (Microphone) |
| samux | 0:140cdf8e2d60 | 433 | INPUT_TERMINAL_DESCRIPTOR_LENGTH, // bLength |
| samux | 0:140cdf8e2d60 | 434 | INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 435 | CONTROL_INPUT_TERMINAL, // bDescriptorSubtype |
| samux | 0:140cdf8e2d60 | 436 | 0x04, // bTerminalID |
| samux | 0:140cdf8e2d60 | 437 | LSB(TERMINAL_MICROPHONE), // wTerminalType |
| samux | 0:140cdf8e2d60 | 438 | MSB(TERMINAL_MICROPHONE), // wTerminalType |
| samux | 0:140cdf8e2d60 | 439 | 0x00, // bAssocTerminal |
| samux | 0:140cdf8e2d60 | 440 | channel_nb_out, // bNrChannels |
| samux | 0:140cdf8e2d60 | 441 | LSB(channel_config_out), // wChannelConfig |
| samux | 0:140cdf8e2d60 | 442 | MSB(channel_config_out), // wChannelConfig |
| samux | 0:140cdf8e2d60 | 443 | 0x00, // iChannelNames |
| samux | 0:140cdf8e2d60 | 444 | 0x00, // iTerminal |
| samux | 0:140cdf8e2d60 | 445 | |
| samux | 0:140cdf8e2d60 | 446 | // Audio Output Terminal (Microphone) |
| samux | 0:140cdf8e2d60 | 447 | OUTPUT_TERMINAL_DESCRIPTOR_LENGTH, // bLength |
| samux | 0:140cdf8e2d60 | 448 | INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 449 | CONTROL_OUTPUT_TERMINAL, // bDescriptorSubtype |
| samux | 0:140cdf8e2d60 | 450 | 0x05, // bTerminalID |
| samux | 0:140cdf8e2d60 | 451 | LSB(TERMINAL_USB_STREAMING), // wTerminalType |
| samux | 0:140cdf8e2d60 | 452 | MSB(TERMINAL_USB_STREAMING), // wTerminalType |
| samux | 0:140cdf8e2d60 | 453 | 0x00, // bAssocTerminal |
| samux | 0:140cdf8e2d60 | 454 | 0x04, // bSourceID |
| samux | 0:140cdf8e2d60 | 455 | 0x00, // iTerminal |
| samux | 0:140cdf8e2d60 | 456 | |
| samux | 0:140cdf8e2d60 | 457 | |
| samux | 0:140cdf8e2d60 | 458 | |
| samux | 0:140cdf8e2d60 | 459 | |
| samux | 0:140cdf8e2d60 | 460 | |
| samux | 0:140cdf8e2d60 | 461 | |
| samux | 0:140cdf8e2d60 | 462 | // Interface 1, Alternate Setting 0, Audio Streaming - Zero Bandwith |
| samux | 0:140cdf8e2d60 | 463 | INTERFACE_DESCRIPTOR_LENGTH, // bLength |
| samux | 0:140cdf8e2d60 | 464 | INTERFACE_DESCRIPTOR, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 465 | 0x01, // bInterfaceNumber |
| samux | 0:140cdf8e2d60 | 466 | 0x00, // bAlternateSetting |
| samux | 0:140cdf8e2d60 | 467 | 0x00, // bNumEndpoints |
| samux | 0:140cdf8e2d60 | 468 | AUDIO_CLASS, // bInterfaceClass |
| samux | 0:140cdf8e2d60 | 469 | SUBCLASS_AUDIOSTREAMING, // bInterfaceSubClass |
| samux | 0:140cdf8e2d60 | 470 | 0x00, // bInterfaceProtocol |
| samux | 0:140cdf8e2d60 | 471 | 0x00, // iInterface |
| samux | 0:140cdf8e2d60 | 472 | |
| samux | 0:140cdf8e2d60 | 473 | // Interface 1, Alternate Setting 1, Audio Streaming - Operational |
| samux | 0:140cdf8e2d60 | 474 | INTERFACE_DESCRIPTOR_LENGTH, // bLength |
| samux | 0:140cdf8e2d60 | 475 | INTERFACE_DESCRIPTOR, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 476 | 0x01, // bInterfaceNumber |
| samux | 0:140cdf8e2d60 | 477 | 0x01, // bAlternateSetting |
| samux | 0:140cdf8e2d60 | 478 | 0x01, // bNumEndpoints |
| samux | 0:140cdf8e2d60 | 479 | AUDIO_CLASS, // bInterfaceClass |
| samux | 0:140cdf8e2d60 | 480 | SUBCLASS_AUDIOSTREAMING, // bInterfaceSubClass |
| samux | 0:140cdf8e2d60 | 481 | 0x00, // bInterfaceProtocol |
| samux | 0:140cdf8e2d60 | 482 | 0x00, // iInterface |
| samux | 0:140cdf8e2d60 | 483 | |
| samux | 0:140cdf8e2d60 | 484 | // Audio Streaming Interface |
| samux | 0:140cdf8e2d60 | 485 | STREAMING_INTERFACE_DESCRIPTOR_LENGTH, // bLength |
| samux | 0:140cdf8e2d60 | 486 | INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 487 | STREAMING_GENERAL, // bDescriptorSubtype |
| samux | 0:140cdf8e2d60 | 488 | 0x01, // bTerminalLink |
| samux | 0:140cdf8e2d60 | 489 | 0x00, // bDelay |
| samux | 0:140cdf8e2d60 | 490 | LSB(FORMAT_PCM), // wFormatTag |
| samux | 0:140cdf8e2d60 | 491 | MSB(FORMAT_PCM), // wFormatTag |
| samux | 0:140cdf8e2d60 | 492 | |
| samux | 0:140cdf8e2d60 | 493 | // Audio Type I Format |
| samux | 0:140cdf8e2d60 | 494 | FORMAT_TYPE_I_DESCRIPTOR_LENGTH, // bLength |
| samux | 0:140cdf8e2d60 | 495 | INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 496 | STREAMING_FORMAT_TYPE, // bDescriptorSubtype |
| samux | 0:140cdf8e2d60 | 497 | FORMAT_TYPE_I, // bFormatType |
| samux | 0:140cdf8e2d60 | 498 | channel_nb_in, // bNrChannels |
| samux | 0:140cdf8e2d60 | 499 | 0x02, // bSubFrameSize |
| samux | 0:140cdf8e2d60 | 500 | 16, // bBitResolution |
| samux | 0:140cdf8e2d60 | 501 | 0x01, // bSamFreqType |
| samux | 0:140cdf8e2d60 | 502 | LSB(FREQ_IN), // tSamFreq |
| samux | 0:140cdf8e2d60 | 503 | (FREQ_IN >> 8) & 0xff, // tSamFreq |
| samux | 0:140cdf8e2d60 | 504 | (FREQ_IN >> 16) & 0xff, // tSamFreq |
| samux | 0:140cdf8e2d60 | 505 | |
| samux | 0:140cdf8e2d60 | 506 | // Endpoint - Standard Descriptor |
| samux | 0:140cdf8e2d60 | 507 | ENDPOINT_DESCRIPTOR_LENGTH + 2, // bLength |
| samux | 0:140cdf8e2d60 | 508 | ENDPOINT_DESCRIPTOR, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 509 | PHY_TO_DESC(EPISO_OUT), // bEndpointAddress |
| samux | 0:140cdf8e2d60 | 510 | E_ISOCHRONOUS, // bmAttributes |
| samux | 0:140cdf8e2d60 | 511 | LSB(PACKET_SIZE_ISO_IN), // wMaxPacketSize |
| samux | 0:140cdf8e2d60 | 512 | MSB(PACKET_SIZE_ISO_IN), // wMaxPacketSize |
| samux | 0:140cdf8e2d60 | 513 | 0x01, // bInterval |
| samux | 0:140cdf8e2d60 | 514 | 0x00, // bRefresh |
| samux | 0:140cdf8e2d60 | 515 | 0x00, // bSynchAddress |
| samux | 0:140cdf8e2d60 | 516 | |
| samux | 0:140cdf8e2d60 | 517 | // Endpoint - Audio Streaming |
| samux | 0:140cdf8e2d60 | 518 | STREAMING_ENDPOINT_DESCRIPTOR_LENGTH, // bLength |
| samux | 0:140cdf8e2d60 | 519 | ENDPOINT_DESCRIPTOR_TYPE, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 520 | ENDPOINT_GENERAL, // bDescriptor |
| samux | 0:140cdf8e2d60 | 521 | 0x00, // bmAttributes |
| samux | 0:140cdf8e2d60 | 522 | 0x00, // bLockDelayUnits |
| samux | 0:140cdf8e2d60 | 523 | LSB(0x0000), // wLockDelay |
| samux | 0:140cdf8e2d60 | 524 | MSB(0x0000), // wLockDelay |
| samux | 0:140cdf8e2d60 | 525 | |
| samux | 0:140cdf8e2d60 | 526 | |
| samux | 0:140cdf8e2d60 | 527 | |
| samux | 0:140cdf8e2d60 | 528 | |
| samux | 0:140cdf8e2d60 | 529 | |
| samux | 0:140cdf8e2d60 | 530 | |
| samux | 0:140cdf8e2d60 | 531 | |
| samux | 0:140cdf8e2d60 | 532 | // Interface 1, Alternate Setting 0, Audio Streaming - Zero Bandwith |
| samux | 0:140cdf8e2d60 | 533 | INTERFACE_DESCRIPTOR_LENGTH, // bLength |
| samux | 0:140cdf8e2d60 | 534 | INTERFACE_DESCRIPTOR, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 535 | 0x02, // bInterfaceNumber |
| samux | 0:140cdf8e2d60 | 536 | 0x00, // bAlternateSetting |
| samux | 0:140cdf8e2d60 | 537 | 0x00, // bNumEndpoints |
| samux | 0:140cdf8e2d60 | 538 | AUDIO_CLASS, // bInterfaceClass |
| samux | 0:140cdf8e2d60 | 539 | SUBCLASS_AUDIOSTREAMING, // bInterfaceSubClass |
| samux | 0:140cdf8e2d60 | 540 | 0x00, // bInterfaceProtocol |
| samux | 0:140cdf8e2d60 | 541 | 0x00, // iInterface |
| samux | 0:140cdf8e2d60 | 542 | |
| samux | 0:140cdf8e2d60 | 543 | // Interface 1, Alternate Setting 1, Audio Streaming - Operational |
| samux | 0:140cdf8e2d60 | 544 | INTERFACE_DESCRIPTOR_LENGTH, // bLength |
| samux | 0:140cdf8e2d60 | 545 | INTERFACE_DESCRIPTOR, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 546 | 0x02, // bInterfaceNumber |
| samux | 0:140cdf8e2d60 | 547 | 0x01, // bAlternateSetting |
| samux | 0:140cdf8e2d60 | 548 | 0x01, // bNumEndpoints |
| samux | 0:140cdf8e2d60 | 549 | AUDIO_CLASS, // bInterfaceClass |
| samux | 0:140cdf8e2d60 | 550 | SUBCLASS_AUDIOSTREAMING, // bInterfaceSubClass |
| samux | 0:140cdf8e2d60 | 551 | 0x00, // bInterfaceProtocol |
| samux | 0:140cdf8e2d60 | 552 | 0x00, // iInterface |
| samux | 0:140cdf8e2d60 | 553 | |
| samux | 0:140cdf8e2d60 | 554 | // Audio Streaming Interface |
| samux | 0:140cdf8e2d60 | 555 | STREAMING_INTERFACE_DESCRIPTOR_LENGTH, // bLength |
| samux | 0:140cdf8e2d60 | 556 | INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 557 | SUBCLASS_AUDIOCONTROL, // bDescriptorSubtype |
| samux | 0:140cdf8e2d60 | 558 | 0x05, // bTerminalLink (output terminal microphone) |
| samux | 0:140cdf8e2d60 | 559 | 0x01, // bDelay |
| samux | 0:140cdf8e2d60 | 560 | 0x01, // wFormatTag |
| samux | 0:140cdf8e2d60 | 561 | 0x00, // wFormatTag |
| samux | 0:140cdf8e2d60 | 562 | |
| samux | 0:140cdf8e2d60 | 563 | // Audio Type I Format |
| samux | 0:140cdf8e2d60 | 564 | FORMAT_TYPE_I_DESCRIPTOR_LENGTH, // bLength |
| samux | 0:140cdf8e2d60 | 565 | INTERFACE_DESCRIPTOR_TYPE, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 566 | SUBCLASS_AUDIOSTREAMING, // bDescriptorSubtype |
| samux | 0:140cdf8e2d60 | 567 | FORMAT_TYPE_I, // bFormatType |
| samux | 0:140cdf8e2d60 | 568 | channel_nb_out, // bNrChannels |
| samux | 0:140cdf8e2d60 | 569 | 0x02, // bSubFrameSize |
| samux | 0:140cdf8e2d60 | 570 | 0x10, // bBitResolution |
| samux | 0:140cdf8e2d60 | 571 | 0x01, // bSamFreqType |
| samux | 0:140cdf8e2d60 | 572 | LSB(FREQ_OUT), // tSamFreq |
| samux | 0:140cdf8e2d60 | 573 | (FREQ_OUT >> 8) & 0xff, // tSamFreq |
| samux | 0:140cdf8e2d60 | 574 | (FREQ_OUT >> 16) & 0xff, // tSamFreq |
| samux | 0:140cdf8e2d60 | 575 | |
| samux | 0:140cdf8e2d60 | 576 | // Endpoint - Standard Descriptor |
| samux | 0:140cdf8e2d60 | 577 | ENDPOINT_DESCRIPTOR_LENGTH + 2, // bLength |
| samux | 0:140cdf8e2d60 | 578 | ENDPOINT_DESCRIPTOR, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 579 | PHY_TO_DESC(EPISO_IN), // bEndpointAddress |
| samux | 0:140cdf8e2d60 | 580 | E_ISOCHRONOUS, // bmAttributes |
| samux | 0:140cdf8e2d60 | 581 | LSB(PACKET_SIZE_ISO_OUT), // wMaxPacketSize |
| samux | 0:140cdf8e2d60 | 582 | MSB(PACKET_SIZE_ISO_OUT), // wMaxPacketSize |
| samux | 0:140cdf8e2d60 | 583 | 0x01, // bInterval |
| samux | 0:140cdf8e2d60 | 584 | 0x00, // bRefresh |
| samux | 0:140cdf8e2d60 | 585 | 0x00, // bSynchAddress |
| samux | 0:140cdf8e2d60 | 586 | |
| samux | 0:140cdf8e2d60 | 587 | // Endpoint - Audio Streaming |
| samux | 0:140cdf8e2d60 | 588 | STREAMING_ENDPOINT_DESCRIPTOR_LENGTH, // bLength |
| samux | 0:140cdf8e2d60 | 589 | ENDPOINT_DESCRIPTOR_TYPE, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 590 | ENDPOINT_GENERAL, // bDescriptor |
| samux | 0:140cdf8e2d60 | 591 | 0x00, // bmAttributes |
| samux | 0:140cdf8e2d60 | 592 | 0x00, // bLockDelayUnits |
| samux | 0:140cdf8e2d60 | 593 | LSB(0x0000), // wLockDelay |
| samux | 0:140cdf8e2d60 | 594 | MSB(0x0000), // wLockDelay |
| samux | 0:140cdf8e2d60 | 595 | |
| samux | 0:140cdf8e2d60 | 596 | // Terminator |
| samux | 0:140cdf8e2d60 | 597 | 0 // bLength |
| samux | 0:140cdf8e2d60 | 598 | }; |
| samux | 0:140cdf8e2d60 | 599 | return configDescriptor; |
| samux | 0:140cdf8e2d60 | 600 | } |
| samux | 0:140cdf8e2d60 | 601 | |
| samux | 0:140cdf8e2d60 | 602 | uint8_t * USBAudio::stringIinterfaceDesc() { |
| samux | 0:140cdf8e2d60 | 603 | static uint8_t stringIinterfaceDescriptor[] = { |
| samux | 0:140cdf8e2d60 | 604 | 0x0c, //bLength |
| samux | 0:140cdf8e2d60 | 605 | STRING_DESCRIPTOR, //bDescriptorType 0x03 |
| samux | 0:140cdf8e2d60 | 606 | 'A',0,'u',0,'d',0,'i',0,'o',0 //bString iInterface - Audio |
| samux | 0:140cdf8e2d60 | 607 | }; |
| samux | 0:140cdf8e2d60 | 608 | return stringIinterfaceDescriptor; |
| samux | 0:140cdf8e2d60 | 609 | } |
| samux | 0:140cdf8e2d60 | 610 | |
| samux | 0:140cdf8e2d60 | 611 | uint8_t * USBAudio::stringIproductDesc() { |
| samux | 0:140cdf8e2d60 | 612 | static uint8_t stringIproductDescriptor[] = { |
| samux | 0:140cdf8e2d60 | 613 | 0x16, //bLength |
| samux | 0:140cdf8e2d60 | 614 | STRING_DESCRIPTOR, //bDescriptorType 0x03 |
| samux | 0:140cdf8e2d60 | 615 | 'M',0,'b',0,'e',0,'d',0,' ',0,'A',0,'u',0,'d',0,'i',0,'o',0 //bString iProduct - Mbed Audio |
| samux | 0:140cdf8e2d60 | 616 | }; |
| samux | 0:140cdf8e2d60 | 617 | return stringIproductDescriptor; |
| samux | 0:140cdf8e2d60 | 618 | } |