CRTI_Progs
device USB Samir
Dependents: USBJoystick_HelloWorld3
Fork of
USBDevice
by 
Samuel Mokrani
USBMSD/USBMSD.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 "USBMSD.h" |
| samux | 0:140cdf8e2d60 | 21 | |
| samux | 0:140cdf8e2d60 | 22 | #define DISK_OK 0x00 |
| samux | 0:140cdf8e2d60 | 23 | #define NO_INIT 0x01 |
| samux | 0:140cdf8e2d60 | 24 | #define NO_DISK 0x02 |
| samux | 0:140cdf8e2d60 | 25 | #define WRITE_PROTECT 0x04 |
| samux | 0:140cdf8e2d60 | 26 | |
| samux | 0:140cdf8e2d60 | 27 | #define CBW_Signature 0x43425355 |
| samux | 0:140cdf8e2d60 | 28 | #define CSW_Signature 0x53425355 |
| samux | 0:140cdf8e2d60 | 29 | |
| samux | 0:140cdf8e2d60 | 30 | // SCSI Commands |
| samux | 0:140cdf8e2d60 | 31 | #define TEST_UNIT_READY 0x00 |
| samux | 0:140cdf8e2d60 | 32 | #define REQUEST_SENSE 0x03 |
| samux | 0:140cdf8e2d60 | 33 | #define FORMAT_UNIT 0x04 |
| samux | 0:140cdf8e2d60 | 34 | #define INQUIRY 0x12 |
| samux | 0:140cdf8e2d60 | 35 | #define MODE_SELECT6 0x15 |
| samux | 0:140cdf8e2d60 | 36 | #define MODE_SENSE6 0x1A |
| samux | 0:140cdf8e2d60 | 37 | #define START_STOP_UNIT 0x1B |
| samux | 0:140cdf8e2d60 | 38 | #define MEDIA_REMOVAL 0x1E |
| samux | 0:140cdf8e2d60 | 39 | #define READ_FORMAT_CAPACITIES 0x23 |
| samux | 0:140cdf8e2d60 | 40 | #define READ_CAPACITY 0x25 |
| samux | 0:140cdf8e2d60 | 41 | #define READ10 0x28 |
| samux | 0:140cdf8e2d60 | 42 | #define WRITE10 0x2A |
| samux | 0:140cdf8e2d60 | 43 | #define VERIFY10 0x2F |
| samux | 0:140cdf8e2d60 | 44 | #define READ12 0xA8 |
| samux | 0:140cdf8e2d60 | 45 | #define WRITE12 0xAA |
| samux | 0:140cdf8e2d60 | 46 | #define MODE_SELECT10 0x55 |
| samux | 0:140cdf8e2d60 | 47 | #define MODE_SENSE10 0x5A |
| samux | 0:140cdf8e2d60 | 48 | |
| samux | 0:140cdf8e2d60 | 49 | // MSC class specific requests |
| samux | 0:140cdf8e2d60 | 50 | #define MSC_REQUEST_RESET 0xFF |
| samux | 0:140cdf8e2d60 | 51 | #define MSC_REQUEST_GET_MAX_LUN 0xFE |
| samux | 0:140cdf8e2d60 | 52 | |
| samux | 0:140cdf8e2d60 | 53 | #define DEFAULT_CONFIGURATION (1) |
| samux | 0:140cdf8e2d60 | 54 | |
| samux | 0:140cdf8e2d60 | 55 | // max packet size |
| samux | 0:140cdf8e2d60 | 56 | #define MAX_PACKET MAX_PACKET_SIZE_EPBULK |
| samux | 0:140cdf8e2d60 | 57 | |
| samux | 0:140cdf8e2d60 | 58 | // CSW Status |
| samux | 0:140cdf8e2d60 | 59 | enum Status { |
| samux | 0:140cdf8e2d60 | 60 | CSW_PASSED, |
| samux | 0:140cdf8e2d60 | 61 | CSW_FAILED, |
| samux | 0:140cdf8e2d60 | 62 | CSW_ERROR, |
| samux | 0:140cdf8e2d60 | 63 | }; |
| samux | 0:140cdf8e2d60 | 64 | |
| samux | 0:140cdf8e2d60 | 65 | |
| samux | 0:140cdf8e2d60 | 66 | USBMSD::USBMSD(uint16_t vendor_id, uint16_t product_id, uint16_t product_release): USBDevice(vendor_id, product_id, product_release) { |
| samux | 0:140cdf8e2d60 | 67 | } |
| samux | 0:140cdf8e2d60 | 68 | |
| samux | 0:140cdf8e2d60 | 69 | |
| samux | 0:140cdf8e2d60 | 70 | |
| samux | 0:140cdf8e2d60 | 71 | // Called in ISR context to process a class specific request |
| samux | 0:140cdf8e2d60 | 72 | bool USBMSD::USBCallback_request(void) { |
| samux | 0:140cdf8e2d60 | 73 | |
| samux | 0:140cdf8e2d60 | 74 | bool success = false; |
| samux | 0:140cdf8e2d60 | 75 | CONTROL_TRANSFER * transfer = getTransferPtr(); |
| samux | 0:140cdf8e2d60 | 76 | static uint8_t maxLUN[1] = {0}; |
| samux | 0:140cdf8e2d60 | 77 | |
| samux | 0:140cdf8e2d60 | 78 | if (transfer->setup.bmRequestType.Type == CLASS_TYPE) { |
| samux | 0:140cdf8e2d60 | 79 | switch (transfer->setup.bRequest) { |
| samux | 0:140cdf8e2d60 | 80 | case MSC_REQUEST_RESET: |
| samux | 0:140cdf8e2d60 | 81 | reset(); |
| samux | 0:140cdf8e2d60 | 82 | success = true; |
| samux | 0:140cdf8e2d60 | 83 | break; |
| samux | 0:140cdf8e2d60 | 84 | case MSC_REQUEST_GET_MAX_LUN: |
| samux | 0:140cdf8e2d60 | 85 | transfer->remaining = 1; |
| samux | 0:140cdf8e2d60 | 86 | transfer->ptr = maxLUN; |
| samux | 0:140cdf8e2d60 | 87 | transfer->direction = DEVICE_TO_HOST; |
| samux | 0:140cdf8e2d60 | 88 | success = true; |
| samux | 0:140cdf8e2d60 | 89 | break; |
| samux | 0:140cdf8e2d60 | 90 | default: |
| samux | 0:140cdf8e2d60 | 91 | break; |
| samux | 0:140cdf8e2d60 | 92 | } |
| samux | 0:140cdf8e2d60 | 93 | } |
| samux | 0:140cdf8e2d60 | 94 | |
| samux | 0:140cdf8e2d60 | 95 | return success; |
| samux | 0:140cdf8e2d60 | 96 | } |
| samux | 0:140cdf8e2d60 | 97 | |
| samux | 0:140cdf8e2d60 | 98 | |
| samux | 0:140cdf8e2d60 | 99 | bool USBMSD::connect() { |
| samux | 0:140cdf8e2d60 | 100 | |
| samux | 0:140cdf8e2d60 | 101 | //disk initialization |
| samux | 0:140cdf8e2d60 | 102 | if (disk_status() & NO_INIT) { |
| samux | 0:140cdf8e2d60 | 103 | if (disk_initialize()) { |
| samux | 0:140cdf8e2d60 | 104 | return false; |
| samux | 0:140cdf8e2d60 | 105 | } |
| samux | 0:140cdf8e2d60 | 106 | } |
| samux | 0:140cdf8e2d60 | 107 | |
| samux | 0:140cdf8e2d60 | 108 | // get number of blocks |
| samux | 0:140cdf8e2d60 | 109 | BlockCount = disk_sectors(); |
| samux | 0:140cdf8e2d60 | 110 | |
| samux | 0:140cdf8e2d60 | 111 | // get memory size |
| samux | 0:140cdf8e2d60 | 112 | MemorySize = disk_size(); |
| samux | 0:140cdf8e2d60 | 113 | |
| samux | 0:140cdf8e2d60 | 114 | if (BlockCount >= 0) { |
| samux | 0:140cdf8e2d60 | 115 | BlockSize = MemorySize / BlockCount; |
| samux | 0:140cdf8e2d60 | 116 | if (BlockSize != 0) { |
| samux | 0:140cdf8e2d60 | 117 | page = (uint8_t *)malloc(BlockSize * sizeof(uint8_t)); |
| samux | 0:140cdf8e2d60 | 118 | if (page == NULL) |
| samux | 0:140cdf8e2d60 | 119 | return false; |
| samux | 0:140cdf8e2d60 | 120 | } |
| samux | 0:140cdf8e2d60 | 121 | } else { |
| samux | 0:140cdf8e2d60 | 122 | return false; |
| samux | 0:140cdf8e2d60 | 123 | } |
| samux | 0:140cdf8e2d60 | 124 | |
| samux | 0:140cdf8e2d60 | 125 | //connect the device |
| samux | 0:140cdf8e2d60 | 126 | USBDevice::connect(); |
| samux | 0:140cdf8e2d60 | 127 | return true; |
| samux | 0:140cdf8e2d60 | 128 | } |
| samux | 0:140cdf8e2d60 | 129 | |
| samux | 0:140cdf8e2d60 | 130 | |
| samux | 0:140cdf8e2d60 | 131 | void USBMSD::reset() { |
| samux | 0:140cdf8e2d60 | 132 | stage = READ_CBW; |
| samux | 0:140cdf8e2d60 | 133 | } |
| samux | 0:140cdf8e2d60 | 134 | |
| samux | 0:140cdf8e2d60 | 135 | |
| samux | 0:140cdf8e2d60 | 136 | // Called in ISR context called when a data is received |
| samux | 0:140cdf8e2d60 | 137 | bool USBMSD::EP2_OUT_callback() { |
| samux | 0:140cdf8e2d60 | 138 | uint32_t size = 0; |
| samux | 0:140cdf8e2d60 | 139 | uint8_t buf[MAX_PACKET_SIZE_EPBULK]; |
| samux | 0:140cdf8e2d60 | 140 | readEP(EPBULK_OUT, buf, &size, MAX_PACKET_SIZE_EPBULK); |
| samux | 0:140cdf8e2d60 | 141 | switch (stage) { |
| samux | 0:140cdf8e2d60 | 142 | // the device has to decode the CBW received |
| samux | 0:140cdf8e2d60 | 143 | case READ_CBW: |
| samux | 0:140cdf8e2d60 | 144 | CBWDecode(buf, size); |
| samux | 0:140cdf8e2d60 | 145 | break; |
| samux | 0:140cdf8e2d60 | 146 | |
| samux | 0:140cdf8e2d60 | 147 | // the device has to receive data from the host |
| samux | 0:140cdf8e2d60 | 148 | case PROCESS_CBW: |
| samux | 0:140cdf8e2d60 | 149 | switch (cbw.CB[0]) { |
| samux | 0:140cdf8e2d60 | 150 | case WRITE10: |
| samux | 0:140cdf8e2d60 | 151 | case WRITE12: |
| samux | 0:140cdf8e2d60 | 152 | memoryWrite(buf, size); |
| samux | 0:140cdf8e2d60 | 153 | break; |
| samux | 0:140cdf8e2d60 | 154 | case VERIFY10: |
| samux | 0:140cdf8e2d60 | 155 | memoryVerify(buf, size); |
| samux | 0:140cdf8e2d60 | 156 | break; |
| samux | 0:140cdf8e2d60 | 157 | } |
| samux | 0:140cdf8e2d60 | 158 | break; |
| samux | 0:140cdf8e2d60 | 159 | |
| samux | 0:140cdf8e2d60 | 160 | // an error has occured: stall endpoint and send CSW |
| samux | 0:140cdf8e2d60 | 161 | default: |
| samux | 0:140cdf8e2d60 | 162 | stallEndpoint(EPBULK_OUT); |
| samux | 0:140cdf8e2d60 | 163 | csw.Status = CSW_ERROR; |
| samux | 0:140cdf8e2d60 | 164 | sendCSW(); |
| samux | 0:140cdf8e2d60 | 165 | break; |
| samux | 0:140cdf8e2d60 | 166 | } |
| samux | 0:140cdf8e2d60 | 167 | |
| samux | 0:140cdf8e2d60 | 168 | //reactivate readings on the OUT bulk endpoint |
| samux | 0:140cdf8e2d60 | 169 | readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK); |
| samux | 0:140cdf8e2d60 | 170 | return true; |
| samux | 0:140cdf8e2d60 | 171 | } |
| samux | 0:140cdf8e2d60 | 172 | |
| samux | 0:140cdf8e2d60 | 173 | // Called in ISR context when a data has been transferred |
| samux | 0:140cdf8e2d60 | 174 | bool USBMSD::EP2_IN_callback() { |
| samux | 0:140cdf8e2d60 | 175 | switch (stage) { |
| samux | 0:140cdf8e2d60 | 176 | |
| samux | 0:140cdf8e2d60 | 177 | // the device has to send data to the host |
| samux | 0:140cdf8e2d60 | 178 | case PROCESS_CBW: |
| samux | 0:140cdf8e2d60 | 179 | switch (cbw.CB[0]) { |
| samux | 0:140cdf8e2d60 | 180 | case READ10: |
| samux | 0:140cdf8e2d60 | 181 | case READ12: |
| samux | 0:140cdf8e2d60 | 182 | memoryRead(); |
| samux | 0:140cdf8e2d60 | 183 | break; |
| samux | 0:140cdf8e2d60 | 184 | } |
| samux | 0:140cdf8e2d60 | 185 | break; |
| samux | 0:140cdf8e2d60 | 186 | |
| samux | 0:140cdf8e2d60 | 187 | //the device has to send a CSW |
| samux | 0:140cdf8e2d60 | 188 | case SEND_CSW: |
| samux | 0:140cdf8e2d60 | 189 | sendCSW(); |
| samux | 0:140cdf8e2d60 | 190 | break; |
| samux | 0:140cdf8e2d60 | 191 | |
| samux | 0:140cdf8e2d60 | 192 | // an error has occured |
| samux | 0:140cdf8e2d60 | 193 | case ERROR: |
| samux | 0:140cdf8e2d60 | 194 | stallEndpoint(EPBULK_IN); |
| samux | 0:140cdf8e2d60 | 195 | sendCSW(); |
| samux | 0:140cdf8e2d60 | 196 | break; |
| samux | 0:140cdf8e2d60 | 197 | |
| samux | 0:140cdf8e2d60 | 198 | // the host has received the CSW -> we wait a CBW |
| samux | 0:140cdf8e2d60 | 199 | case WAIT_CSW: |
| samux | 0:140cdf8e2d60 | 200 | stage = READ_CBW; |
| samux | 0:140cdf8e2d60 | 201 | break; |
| samux | 0:140cdf8e2d60 | 202 | } |
| samux | 0:140cdf8e2d60 | 203 | return true; |
| samux | 0:140cdf8e2d60 | 204 | } |
| samux | 0:140cdf8e2d60 | 205 | |
| samux | 0:140cdf8e2d60 | 206 | |
| samux | 0:140cdf8e2d60 | 207 | void USBMSD::memoryWrite (uint8_t * buf, uint16_t size) { |
| samux | 0:140cdf8e2d60 | 208 | |
| samux | 0:140cdf8e2d60 | 209 | if ((addr + size) > MemorySize) { |
| samux | 0:140cdf8e2d60 | 210 | size = MemorySize - addr; |
| samux | 0:140cdf8e2d60 | 211 | stage = ERROR; |
| samux | 0:140cdf8e2d60 | 212 | stallEndpoint(EPBULK_OUT); |
| samux | 0:140cdf8e2d60 | 213 | } |
| samux | 0:140cdf8e2d60 | 214 | |
| samux | 0:140cdf8e2d60 | 215 | // we fill an array in RAM of 1 block before writing it in memory |
| samux | 0:140cdf8e2d60 | 216 | for (int i = 0; i < size; i++) |
| samux | 0:140cdf8e2d60 | 217 | page[addr%BlockSize + i] = buf[i]; |
| samux | 0:140cdf8e2d60 | 218 | |
| samux | 0:140cdf8e2d60 | 219 | // if the array is filled, write it in memory |
| samux | 0:140cdf8e2d60 | 220 | if (!((addr + size)%BlockSize)) { |
| samux | 0:140cdf8e2d60 | 221 | if (!(disk_status() & WRITE_PROTECT)) { |
| samux | 0:140cdf8e2d60 | 222 | disk_write((const char *)page, addr/BlockSize); |
| samux | 0:140cdf8e2d60 | 223 | } |
| samux | 0:140cdf8e2d60 | 224 | } |
| samux | 0:140cdf8e2d60 | 225 | |
| samux | 0:140cdf8e2d60 | 226 | addr += size; |
| samux | 0:140cdf8e2d60 | 227 | length -= size; |
| samux | 0:140cdf8e2d60 | 228 | csw.DataResidue -= size; |
| samux | 0:140cdf8e2d60 | 229 | |
| samux | 0:140cdf8e2d60 | 230 | if ((!length) || (stage != PROCESS_CBW)) { |
| samux | 0:140cdf8e2d60 | 231 | csw.Status = (stage == ERROR) ? CSW_FAILED : CSW_PASSED; |
| samux | 0:140cdf8e2d60 | 232 | sendCSW(); |
| samux | 0:140cdf8e2d60 | 233 | } |
| samux | 0:140cdf8e2d60 | 234 | } |
| samux | 0:140cdf8e2d60 | 235 | |
| samux | 0:140cdf8e2d60 | 236 | void USBMSD::memoryVerify (uint8_t * buf, uint16_t size) { |
| samux | 0:140cdf8e2d60 | 237 | uint32_t n; |
| samux | 0:140cdf8e2d60 | 238 | |
| samux | 0:140cdf8e2d60 | 239 | if ((addr + size) > MemorySize) { |
| samux | 0:140cdf8e2d60 | 240 | size = MemorySize - addr; |
| samux | 0:140cdf8e2d60 | 241 | stage = ERROR; |
| samux | 0:140cdf8e2d60 | 242 | stallEndpoint(EPBULK_OUT); |
| samux | 0:140cdf8e2d60 | 243 | } |
| samux | 0:140cdf8e2d60 | 244 | |
| samux | 0:140cdf8e2d60 | 245 | // beginning of a new block -> load a whole block in RAM |
| samux | 0:140cdf8e2d60 | 246 | if (!(addr%BlockSize)) |
| samux | 0:140cdf8e2d60 | 247 | disk_read((char *)page, addr/BlockSize); |
| samux | 0:140cdf8e2d60 | 248 | |
| samux | 0:140cdf8e2d60 | 249 | // info are in RAM -> no need to re-read memory |
| samux | 0:140cdf8e2d60 | 250 | for (n = 0; n < size; n++) { |
| samux | 0:140cdf8e2d60 | 251 | if (page[addr%BlockSize + n] != buf[n]) { |
| samux | 0:140cdf8e2d60 | 252 | memOK = false; |
| samux | 0:140cdf8e2d60 | 253 | break; |
| samux | 0:140cdf8e2d60 | 254 | } |
| samux | 0:140cdf8e2d60 | 255 | } |
| samux | 0:140cdf8e2d60 | 256 | |
| samux | 0:140cdf8e2d60 | 257 | addr += size; |
| samux | 0:140cdf8e2d60 | 258 | length -= size; |
| samux | 0:140cdf8e2d60 | 259 | csw.DataResidue -= size; |
| samux | 0:140cdf8e2d60 | 260 | |
| samux | 0:140cdf8e2d60 | 261 | if ( !length || (stage != PROCESS_CBW)) { |
| samux | 0:140cdf8e2d60 | 262 | csw.Status = (memOK && (stage == PROCESS_CBW)) ? CSW_PASSED : CSW_FAILED; |
| samux | 0:140cdf8e2d60 | 263 | sendCSW(); |
| samux | 0:140cdf8e2d60 | 264 | } |
| samux | 0:140cdf8e2d60 | 265 | } |
| samux | 0:140cdf8e2d60 | 266 | |
| samux | 0:140cdf8e2d60 | 267 | |
| samux | 0:140cdf8e2d60 | 268 | bool USBMSD::inquiryRequest (void) { |
| samux | 0:140cdf8e2d60 | 269 | uint8_t inquiry[] = { 0x00, 0x80, 0x00, 0x01, |
| samux | 0:140cdf8e2d60 | 270 | 36 - 4, 0x80, 0x00, 0x00, |
| samux | 0:140cdf8e2d60 | 271 | 'M', 'B', 'E', 'D', '.', 'O', 'R', 'G', |
| samux | 0:140cdf8e2d60 | 272 | 'M', 'B', 'E', 'D', ' ', 'U', 'S', 'B', ' ', 'D', 'I', 'S', 'K', ' ', ' ', ' ', |
| samux | 0:140cdf8e2d60 | 273 | '1', '.', '0', ' ', |
| samux | 0:140cdf8e2d60 | 274 | }; |
| samux | 0:140cdf8e2d60 | 275 | if (!write(inquiry, sizeof(inquiry))) { |
| samux | 0:140cdf8e2d60 | 276 | return false; |
| samux | 0:140cdf8e2d60 | 277 | } |
| samux | 0:140cdf8e2d60 | 278 | return true; |
| samux | 0:140cdf8e2d60 | 279 | } |
| samux | 0:140cdf8e2d60 | 280 | |
| samux | 0:140cdf8e2d60 | 281 | |
| samux | 0:140cdf8e2d60 | 282 | bool USBMSD::readFormatCapacity() { |
| samux | 0:140cdf8e2d60 | 283 | uint8_t capacity[] = { 0x00, 0x00, 0x00, 0x08, |
| samux | 0:140cdf8e2d60 | 284 | (BlockCount >> 24) & 0xff, |
| samux | 0:140cdf8e2d60 | 285 | (BlockCount >> 16) & 0xff, |
| samux | 0:140cdf8e2d60 | 286 | (BlockCount >> 8) & 0xff, |
| samux | 0:140cdf8e2d60 | 287 | (BlockCount >> 0) & 0xff, |
| samux | 0:140cdf8e2d60 | 288 | |
| samux | 0:140cdf8e2d60 | 289 | 0x02, |
| samux | 0:140cdf8e2d60 | 290 | (BlockSize >> 16) & 0xff, |
| samux | 0:140cdf8e2d60 | 291 | (BlockSize >> 8) & 0xff, |
| samux | 0:140cdf8e2d60 | 292 | (BlockSize >> 0) & 0xff, |
| samux | 0:140cdf8e2d60 | 293 | }; |
| samux | 0:140cdf8e2d60 | 294 | if (!write(capacity, sizeof(capacity))) { |
| samux | 0:140cdf8e2d60 | 295 | return false; |
| samux | 0:140cdf8e2d60 | 296 | } |
| samux | 0:140cdf8e2d60 | 297 | return true; |
| samux | 0:140cdf8e2d60 | 298 | } |
| samux | 0:140cdf8e2d60 | 299 | |
| samux | 0:140cdf8e2d60 | 300 | |
| samux | 0:140cdf8e2d60 | 301 | bool USBMSD::readCapacity (void) { |
| samux | 0:140cdf8e2d60 | 302 | uint8_t capacity[] = { |
| samux | 0:140cdf8e2d60 | 303 | ((BlockCount - 1) >> 24) & 0xff, |
| samux | 0:140cdf8e2d60 | 304 | ((BlockCount - 1) >> 16) & 0xff, |
| samux | 0:140cdf8e2d60 | 305 | ((BlockCount - 1) >> 8) & 0xff, |
| samux | 0:140cdf8e2d60 | 306 | ((BlockCount - 1) >> 0) & 0xff, |
| samux | 0:140cdf8e2d60 | 307 | |
| samux | 0:140cdf8e2d60 | 308 | (BlockSize >> 24) & 0xff, |
| samux | 0:140cdf8e2d60 | 309 | (BlockSize >> 16) & 0xff, |
| samux | 0:140cdf8e2d60 | 310 | (BlockSize >> 8) & 0xff, |
| samux | 0:140cdf8e2d60 | 311 | (BlockSize >> 0) & 0xff, |
| samux | 0:140cdf8e2d60 | 312 | }; |
| samux | 0:140cdf8e2d60 | 313 | if (!write(capacity, sizeof(capacity))) { |
| samux | 0:140cdf8e2d60 | 314 | return false; |
| samux | 0:140cdf8e2d60 | 315 | } |
| samux | 0:140cdf8e2d60 | 316 | return true; |
| samux | 0:140cdf8e2d60 | 317 | } |
| samux | 0:140cdf8e2d60 | 318 | |
| samux | 0:140cdf8e2d60 | 319 | bool USBMSD::write (uint8_t * buf, uint16_t size) { |
| samux | 0:140cdf8e2d60 | 320 | |
| samux | 0:140cdf8e2d60 | 321 | if (size >= cbw.DataLength) { |
| samux | 0:140cdf8e2d60 | 322 | size = cbw.DataLength; |
| samux | 0:140cdf8e2d60 | 323 | } |
| samux | 0:140cdf8e2d60 | 324 | stage = SEND_CSW; |
| samux | 0:140cdf8e2d60 | 325 | |
| samux | 0:140cdf8e2d60 | 326 | if (!writeNB(EPBULK_IN, buf, size, MAX_PACKET_SIZE_EPBULK)) { |
| samux | 0:140cdf8e2d60 | 327 | return false; |
| samux | 0:140cdf8e2d60 | 328 | } |
| samux | 0:140cdf8e2d60 | 329 | |
| samux | 0:140cdf8e2d60 | 330 | csw.DataResidue -= size; |
| samux | 0:140cdf8e2d60 | 331 | csw.Status = CSW_PASSED; |
| samux | 0:140cdf8e2d60 | 332 | return true; |
| samux | 0:140cdf8e2d60 | 333 | } |
| samux | 0:140cdf8e2d60 | 334 | |
| samux | 0:140cdf8e2d60 | 335 | |
| samux | 0:140cdf8e2d60 | 336 | bool USBMSD::modeSense6 (void) { |
| samux | 0:140cdf8e2d60 | 337 | uint8_t sense6[] = { 0x03, 0x00, 0x00, 0x00 }; |
| samux | 0:140cdf8e2d60 | 338 | if (!write(sense6, sizeof(sense6))) { |
| samux | 0:140cdf8e2d60 | 339 | return false; |
| samux | 0:140cdf8e2d60 | 340 | } |
| samux | 0:140cdf8e2d60 | 341 | return true; |
| samux | 0:140cdf8e2d60 | 342 | } |
| samux | 0:140cdf8e2d60 | 343 | |
| samux | 0:140cdf8e2d60 | 344 | void USBMSD::sendCSW() { |
| samux | 0:140cdf8e2d60 | 345 | csw.Signature = CSW_Signature; |
| samux | 0:140cdf8e2d60 | 346 | writeNB(EPBULK_IN, (uint8_t *)&csw, sizeof(CSW), MAX_PACKET_SIZE_EPBULK); |
| samux | 0:140cdf8e2d60 | 347 | stage = WAIT_CSW; |
| samux | 0:140cdf8e2d60 | 348 | } |
| samux | 0:140cdf8e2d60 | 349 | |
| samux | 0:140cdf8e2d60 | 350 | bool USBMSD::requestSense (void) { |
| samux | 0:140cdf8e2d60 | 351 | uint8_t request_sense[] = { |
| samux | 0:140cdf8e2d60 | 352 | 0x70, |
| samux | 0:140cdf8e2d60 | 353 | 0x00, |
| samux | 0:140cdf8e2d60 | 354 | 0x05, // Sense Key: illegal request |
| samux | 0:140cdf8e2d60 | 355 | 0x00, |
| samux | 0:140cdf8e2d60 | 356 | 0x00, |
| samux | 0:140cdf8e2d60 | 357 | 0x00, |
| samux | 0:140cdf8e2d60 | 358 | 0x00, |
| samux | 0:140cdf8e2d60 | 359 | 0x0A, |
| samux | 0:140cdf8e2d60 | 360 | 0x00, |
| samux | 0:140cdf8e2d60 | 361 | 0x00, |
| samux | 0:140cdf8e2d60 | 362 | 0x00, |
| samux | 0:140cdf8e2d60 | 363 | 0x00, |
| samux | 0:140cdf8e2d60 | 364 | 0x30, |
| samux | 0:140cdf8e2d60 | 365 | 0x01, |
| samux | 0:140cdf8e2d60 | 366 | 0x00, |
| samux | 0:140cdf8e2d60 | 367 | 0x00, |
| samux | 0:140cdf8e2d60 | 368 | 0x00, |
| samux | 0:140cdf8e2d60 | 369 | 0x00, |
| samux | 0:140cdf8e2d60 | 370 | }; |
| samux | 0:140cdf8e2d60 | 371 | |
| samux | 0:140cdf8e2d60 | 372 | if (!write(request_sense, sizeof(request_sense))) { |
| samux | 0:140cdf8e2d60 | 373 | return false; |
| samux | 0:140cdf8e2d60 | 374 | } |
| samux | 0:140cdf8e2d60 | 375 | |
| samux | 0:140cdf8e2d60 | 376 | return true; |
| samux | 0:140cdf8e2d60 | 377 | } |
| samux | 0:140cdf8e2d60 | 378 | |
| samux | 0:140cdf8e2d60 | 379 | void USBMSD::fail() { |
| samux | 0:140cdf8e2d60 | 380 | csw.Status = CSW_FAILED; |
| samux | 0:140cdf8e2d60 | 381 | sendCSW(); |
| samux | 0:140cdf8e2d60 | 382 | } |
| samux | 0:140cdf8e2d60 | 383 | |
| samux | 0:140cdf8e2d60 | 384 | |
| samux | 0:140cdf8e2d60 | 385 | void USBMSD::CBWDecode(uint8_t * buf, uint16_t size) { |
| samux | 0:140cdf8e2d60 | 386 | if (size == sizeof(cbw)) { |
| samux | 0:140cdf8e2d60 | 387 | memcpy((uint8_t *)&cbw, buf, size); |
| samux | 0:140cdf8e2d60 | 388 | if (cbw.Signature == CBW_Signature) { |
| samux | 0:140cdf8e2d60 | 389 | csw.Tag = cbw.Tag; |
| samux | 0:140cdf8e2d60 | 390 | csw.DataResidue = cbw.DataLength; |
| samux | 0:140cdf8e2d60 | 391 | if ((cbw.CBLength < 1) || (cbw.CBLength > 16) ) { |
| samux | 0:140cdf8e2d60 | 392 | fail(); |
| samux | 0:140cdf8e2d60 | 393 | } else { |
| samux | 0:140cdf8e2d60 | 394 | switch (cbw.CB[0]) { |
| samux | 0:140cdf8e2d60 | 395 | case TEST_UNIT_READY: |
| samux | 0:140cdf8e2d60 | 396 | testUnitReady(); |
| samux | 0:140cdf8e2d60 | 397 | break; |
| samux | 0:140cdf8e2d60 | 398 | case REQUEST_SENSE: |
| samux | 0:140cdf8e2d60 | 399 | requestSense(); |
| samux | 0:140cdf8e2d60 | 400 | break; |
| samux | 0:140cdf8e2d60 | 401 | case INQUIRY: |
| samux | 0:140cdf8e2d60 | 402 | inquiryRequest(); |
| samux | 0:140cdf8e2d60 | 403 | break; |
| samux | 0:140cdf8e2d60 | 404 | case MODE_SENSE6: |
| samux | 0:140cdf8e2d60 | 405 | modeSense6(); |
| samux | 0:140cdf8e2d60 | 406 | break; |
| samux | 0:140cdf8e2d60 | 407 | case READ_FORMAT_CAPACITIES: |
| samux | 0:140cdf8e2d60 | 408 | readFormatCapacity(); |
| samux | 0:140cdf8e2d60 | 409 | break; |
| samux | 0:140cdf8e2d60 | 410 | case READ_CAPACITY: |
| samux | 0:140cdf8e2d60 | 411 | readCapacity(); |
| samux | 0:140cdf8e2d60 | 412 | break; |
| samux | 0:140cdf8e2d60 | 413 | case READ10: |
| samux | 0:140cdf8e2d60 | 414 | case READ12: |
| samux | 0:140cdf8e2d60 | 415 | if (infoTransfer()) { |
| samux | 0:140cdf8e2d60 | 416 | if ((cbw.Flags & 0x80)) { |
| samux | 0:140cdf8e2d60 | 417 | stage = PROCESS_CBW; |
| samux | 0:140cdf8e2d60 | 418 | memoryRead(); |
| samux | 0:140cdf8e2d60 | 419 | } else { |
| samux | 0:140cdf8e2d60 | 420 | stallEndpoint(EPBULK_OUT); |
| samux | 0:140cdf8e2d60 | 421 | csw.Status = CSW_ERROR; |
| samux | 0:140cdf8e2d60 | 422 | sendCSW(); |
| samux | 0:140cdf8e2d60 | 423 | } |
| samux | 0:140cdf8e2d60 | 424 | } |
| samux | 0:140cdf8e2d60 | 425 | break; |
| samux | 0:140cdf8e2d60 | 426 | case WRITE10: |
| samux | 0:140cdf8e2d60 | 427 | case WRITE12: |
| samux | 0:140cdf8e2d60 | 428 | if (infoTransfer()) { |
| samux | 0:140cdf8e2d60 | 429 | if (!(cbw.Flags & 0x80)) { |
| samux | 0:140cdf8e2d60 | 430 | stage = PROCESS_CBW; |
| samux | 0:140cdf8e2d60 | 431 | } else { |
| samux | 0:140cdf8e2d60 | 432 | stallEndpoint(EPBULK_IN); |
| samux | 0:140cdf8e2d60 | 433 | csw.Status = CSW_ERROR; |
| samux | 0:140cdf8e2d60 | 434 | sendCSW(); |
| samux | 0:140cdf8e2d60 | 435 | } |
| samux | 0:140cdf8e2d60 | 436 | } |
| samux | 0:140cdf8e2d60 | 437 | break; |
| samux | 0:140cdf8e2d60 | 438 | case VERIFY10: |
| samux | 0:140cdf8e2d60 | 439 | if (!(cbw.CB[1] & 0x02)) { |
| samux | 0:140cdf8e2d60 | 440 | csw.Status = CSW_PASSED; |
| samux | 0:140cdf8e2d60 | 441 | sendCSW(); |
| samux | 0:140cdf8e2d60 | 442 | break; |
| samux | 0:140cdf8e2d60 | 443 | } |
| samux | 0:140cdf8e2d60 | 444 | if (infoTransfer()) { |
| samux | 0:140cdf8e2d60 | 445 | if (!(cbw.Flags & 0x80)) { |
| samux | 0:140cdf8e2d60 | 446 | stage = PROCESS_CBW; |
| samux | 0:140cdf8e2d60 | 447 | memOK = true; |
| samux | 0:140cdf8e2d60 | 448 | } else { |
| samux | 0:140cdf8e2d60 | 449 | stallEndpoint(EPBULK_IN); |
| samux | 0:140cdf8e2d60 | 450 | csw.Status = CSW_ERROR; |
| samux | 0:140cdf8e2d60 | 451 | sendCSW(); |
| samux | 0:140cdf8e2d60 | 452 | } |
| samux | 0:140cdf8e2d60 | 453 | } |
| samux | 0:140cdf8e2d60 | 454 | break; |
| samux | 0:140cdf8e2d60 | 455 | default: |
| samux | 0:140cdf8e2d60 | 456 | fail(); |
| samux | 0:140cdf8e2d60 | 457 | break; |
| samux | 0:140cdf8e2d60 | 458 | } |
| samux | 0:140cdf8e2d60 | 459 | } |
| samux | 0:140cdf8e2d60 | 460 | } |
| samux | 0:140cdf8e2d60 | 461 | } |
| samux | 0:140cdf8e2d60 | 462 | } |
| samux | 0:140cdf8e2d60 | 463 | |
| samux | 0:140cdf8e2d60 | 464 | void USBMSD::testUnitReady (void) { |
| samux | 0:140cdf8e2d60 | 465 | |
| samux | 0:140cdf8e2d60 | 466 | if (cbw.DataLength != 0) { |
| samux | 0:140cdf8e2d60 | 467 | if ((cbw.Flags & 0x80) != 0) { |
| samux | 0:140cdf8e2d60 | 468 | stallEndpoint(EPBULK_IN); |
| samux | 0:140cdf8e2d60 | 469 | } else { |
| samux | 0:140cdf8e2d60 | 470 | stallEndpoint(EPBULK_OUT); |
| samux | 0:140cdf8e2d60 | 471 | } |
| samux | 0:140cdf8e2d60 | 472 | } |
| samux | 0:140cdf8e2d60 | 473 | |
| samux | 0:140cdf8e2d60 | 474 | csw.Status = CSW_PASSED; |
| samux | 0:140cdf8e2d60 | 475 | sendCSW(); |
| samux | 0:140cdf8e2d60 | 476 | } |
| samux | 0:140cdf8e2d60 | 477 | |
| samux | 0:140cdf8e2d60 | 478 | |
| samux | 0:140cdf8e2d60 | 479 | void USBMSD::memoryRead (void) { |
| samux | 0:140cdf8e2d60 | 480 | uint32_t n; |
| samux | 0:140cdf8e2d60 | 481 | |
| samux | 0:140cdf8e2d60 | 482 | n = (length > MAX_PACKET) ? MAX_PACKET : length; |
| samux | 0:140cdf8e2d60 | 483 | |
| samux | 0:140cdf8e2d60 | 484 | if ((addr + n) > MemorySize) { |
| samux | 0:140cdf8e2d60 | 485 | n = MemorySize - addr; |
| samux | 0:140cdf8e2d60 | 486 | stage = ERROR; |
| samux | 0:140cdf8e2d60 | 487 | } |
| samux | 0:140cdf8e2d60 | 488 | |
| samux | 0:140cdf8e2d60 | 489 | // we read an entire block |
| samux | 0:140cdf8e2d60 | 490 | if (!(addr%BlockSize)) |
| samux | 0:140cdf8e2d60 | 491 | disk_read((char *)page, addr/BlockSize); |
| samux | 0:140cdf8e2d60 | 492 | |
| samux | 0:140cdf8e2d60 | 493 | // write data which are in RAM |
| samux | 0:140cdf8e2d60 | 494 | writeNB(EPBULK_IN, &page[addr%BlockSize], n, MAX_PACKET_SIZE_EPBULK); |
| samux | 0:140cdf8e2d60 | 495 | |
| samux | 0:140cdf8e2d60 | 496 | addr += n; |
| samux | 0:140cdf8e2d60 | 497 | length -= n; |
| samux | 0:140cdf8e2d60 | 498 | |
| samux | 0:140cdf8e2d60 | 499 | csw.DataResidue -= n; |
| samux | 0:140cdf8e2d60 | 500 | |
| samux | 0:140cdf8e2d60 | 501 | if ( !length || (stage != PROCESS_CBW)) { |
| samux | 0:140cdf8e2d60 | 502 | csw.Status = (stage == PROCESS_CBW) ? CSW_PASSED : CSW_FAILED; |
| samux | 0:140cdf8e2d60 | 503 | stage = (stage == PROCESS_CBW) ? SEND_CSW : stage; |
| samux | 0:140cdf8e2d60 | 504 | } |
| samux | 0:140cdf8e2d60 | 505 | } |
| samux | 0:140cdf8e2d60 | 506 | |
| samux | 0:140cdf8e2d60 | 507 | |
| samux | 0:140cdf8e2d60 | 508 | bool USBMSD::infoTransfer (void) { |
| samux | 0:140cdf8e2d60 | 509 | uint32_t n; |
| samux | 0:140cdf8e2d60 | 510 | |
| samux | 0:140cdf8e2d60 | 511 | // Logical Block Address of First Block |
| samux | 0:140cdf8e2d60 | 512 | n = (cbw.CB[2] << 24) | (cbw.CB[3] << 16) | (cbw.CB[4] << 8) | (cbw.CB[5] << 0); |
| samux | 0:140cdf8e2d60 | 513 | |
| samux | 0:140cdf8e2d60 | 514 | addr = n * BlockSize; |
| samux | 0:140cdf8e2d60 | 515 | |
| samux | 0:140cdf8e2d60 | 516 | // Number of Blocks to transfer |
| samux | 0:140cdf8e2d60 | 517 | switch (cbw.CB[0]) { |
| samux | 0:140cdf8e2d60 | 518 | case READ10: |
| samux | 0:140cdf8e2d60 | 519 | case WRITE10: |
| samux | 0:140cdf8e2d60 | 520 | case VERIFY10: |
| samux | 0:140cdf8e2d60 | 521 | n = (cbw.CB[7] << 8) | (cbw.CB[8] << 0); |
| samux | 0:140cdf8e2d60 | 522 | break; |
| samux | 0:140cdf8e2d60 | 523 | |
| samux | 0:140cdf8e2d60 | 524 | case READ12: |
| samux | 0:140cdf8e2d60 | 525 | case WRITE12: |
| samux | 0:140cdf8e2d60 | 526 | n = (cbw.CB[6] << 24) | (cbw.CB[7] << 16) | (cbw.CB[8] << 8) | (cbw.CB[9] << 0); |
| samux | 0:140cdf8e2d60 | 527 | break; |
| samux | 0:140cdf8e2d60 | 528 | } |
| samux | 0:140cdf8e2d60 | 529 | |
| samux | 0:140cdf8e2d60 | 530 | length = n * BlockSize; |
| samux | 0:140cdf8e2d60 | 531 | |
| samux | 0:140cdf8e2d60 | 532 | if (!cbw.DataLength) { // host requests no data |
| samux | 0:140cdf8e2d60 | 533 | csw.Status = CSW_FAILED; |
| samux | 0:140cdf8e2d60 | 534 | sendCSW(); |
| samux | 0:140cdf8e2d60 | 535 | return false; |
| samux | 0:140cdf8e2d60 | 536 | } |
| samux | 0:140cdf8e2d60 | 537 | |
| samux | 0:140cdf8e2d60 | 538 | if (cbw.DataLength != length) { |
| samux | 0:140cdf8e2d60 | 539 | if ((cbw.Flags & 0x80) != 0) { |
| samux | 0:140cdf8e2d60 | 540 | stallEndpoint(EPBULK_IN); |
| samux | 0:140cdf8e2d60 | 541 | } else { |
| samux | 0:140cdf8e2d60 | 542 | stallEndpoint(EPBULK_OUT); |
| samux | 0:140cdf8e2d60 | 543 | } |
| samux | 0:140cdf8e2d60 | 544 | |
| samux | 0:140cdf8e2d60 | 545 | csw.Status = CSW_FAILED; |
| samux | 0:140cdf8e2d60 | 546 | sendCSW(); |
| samux | 0:140cdf8e2d60 | 547 | return false; |
| samux | 0:140cdf8e2d60 | 548 | } |
| samux | 0:140cdf8e2d60 | 549 | |
| samux | 0:140cdf8e2d60 | 550 | return true; |
| samux | 0:140cdf8e2d60 | 551 | } |
| samux | 0:140cdf8e2d60 | 552 | |
| samux | 0:140cdf8e2d60 | 553 | |
| samux | 0:140cdf8e2d60 | 554 | |
| samux | 0:140cdf8e2d60 | 555 | |
| samux | 0:140cdf8e2d60 | 556 | |
| samux | 0:140cdf8e2d60 | 557 | // Called in ISR context |
| samux | 0:140cdf8e2d60 | 558 | // Set configuration. Return false if the |
| samux | 0:140cdf8e2d60 | 559 | // configuration is not supported. |
| samux | 0:140cdf8e2d60 | 560 | bool USBMSD::USBCallback_setConfiguration(uint8_t configuration) { |
| samux | 0:140cdf8e2d60 | 561 | if (configuration != DEFAULT_CONFIGURATION) { |
| samux | 0:140cdf8e2d60 | 562 | return false; |
| samux | 0:140cdf8e2d60 | 563 | } |
| samux | 0:140cdf8e2d60 | 564 | |
| samux | 0:140cdf8e2d60 | 565 | // Configure endpoints > 0 |
| samux | 0:140cdf8e2d60 | 566 | addEndpoint(EPBULK_IN, MAX_PACKET_SIZE_EPBULK); |
| samux | 0:140cdf8e2d60 | 567 | addEndpoint(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK); |
| samux | 0:140cdf8e2d60 | 568 | |
| samux | 0:140cdf8e2d60 | 569 | //activate readings |
| samux | 0:140cdf8e2d60 | 570 | readStart(EPBULK_OUT, MAX_PACKET_SIZE_EPBULK); |
| samux | 0:140cdf8e2d60 | 571 | return true; |
| samux | 0:140cdf8e2d60 | 572 | } |
| samux | 0:140cdf8e2d60 | 573 | |
| samux | 0:140cdf8e2d60 | 574 | |
| samux | 0:140cdf8e2d60 | 575 | uint8_t * USBMSD::stringIinterfaceDesc() { |
| samux | 0:140cdf8e2d60 | 576 | static uint8_t stringIinterfaceDescriptor[] = { |
| samux | 0:140cdf8e2d60 | 577 | 0x08, //bLength |
| samux | 0:140cdf8e2d60 | 578 | STRING_DESCRIPTOR, //bDescriptorType 0x03 |
| samux | 0:140cdf8e2d60 | 579 | 'M',0,'S',0,'D',0 //bString iInterface - MSD |
| samux | 0:140cdf8e2d60 | 580 | }; |
| samux | 0:140cdf8e2d60 | 581 | return stringIinterfaceDescriptor; |
| samux | 0:140cdf8e2d60 | 582 | } |
| samux | 0:140cdf8e2d60 | 583 | |
| samux | 0:140cdf8e2d60 | 584 | uint8_t * USBMSD::stringIproductDesc() { |
| samux | 0:140cdf8e2d60 | 585 | static uint8_t stringIproductDescriptor[] = { |
| samux | 0:140cdf8e2d60 | 586 | 0x12, //bLength |
| samux | 0:140cdf8e2d60 | 587 | STRING_DESCRIPTOR, //bDescriptorType 0x03 |
| samux | 0:140cdf8e2d60 | 588 | 'M',0,'b',0,'e',0,'d',0,' ',0,'M',0,'S',0,'D',0 //bString iProduct - Mbed Audio |
| samux | 0:140cdf8e2d60 | 589 | }; |
| samux | 0:140cdf8e2d60 | 590 | return stringIproductDescriptor; |
| samux | 0:140cdf8e2d60 | 591 | } |
| samux | 0:140cdf8e2d60 | 592 | |
| samux | 0:140cdf8e2d60 | 593 | |
| samux | 0:140cdf8e2d60 | 594 | uint8_t * USBMSD::configurationDesc() { |
| samux | 0:140cdf8e2d60 | 595 | static uint8_t configDescriptor[] = { |
| samux | 0:140cdf8e2d60 | 596 | |
| samux | 0:140cdf8e2d60 | 597 | // Configuration 1 |
| samux | 0:140cdf8e2d60 | 598 | 9, // bLength |
| samux | 0:140cdf8e2d60 | 599 | 2, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 600 | LSB(9 + 9 + 7 + 7), // wTotalLength |
| samux | 0:140cdf8e2d60 | 601 | MSB(9 + 9 + 7 + 7), |
| samux | 0:140cdf8e2d60 | 602 | 0x01, // bNumInterfaces |
| samux | 0:140cdf8e2d60 | 603 | 0x01, // bConfigurationValue: 0x01 is used to select this configuration |
| samux | 0:140cdf8e2d60 | 604 | 0x00, // iConfiguration: no string to describe this configuration |
| samux | 0:140cdf8e2d60 | 605 | 0xC0, // bmAttributes |
| samux | 0:140cdf8e2d60 | 606 | 100, // bMaxPower, device power consumption is 100 mA |
| samux | 0:140cdf8e2d60 | 607 | |
| samux | 0:140cdf8e2d60 | 608 | // Interface 0, Alternate Setting 0, MSC Class |
| samux | 0:140cdf8e2d60 | 609 | 9, // bLength |
| samux | 0:140cdf8e2d60 | 610 | 4, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 611 | 0x00, // bInterfaceNumber |
| samux | 0:140cdf8e2d60 | 612 | 0x00, // bAlternateSetting |
| samux | 0:140cdf8e2d60 | 613 | 0x02, // bNumEndpoints |
| samux | 0:140cdf8e2d60 | 614 | 0x08, // bInterfaceClass |
| samux | 0:140cdf8e2d60 | 615 | 0x06, // bInterfaceSubClass |
| samux | 0:140cdf8e2d60 | 616 | 0x50, // bInterfaceProtocol |
| samux | 0:140cdf8e2d60 | 617 | 0x04, // iInterface |
| samux | 0:140cdf8e2d60 | 618 | |
| samux | 0:140cdf8e2d60 | 619 | // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 |
| samux | 0:140cdf8e2d60 | 620 | 7, // bLength |
| samux | 0:140cdf8e2d60 | 621 | 5, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 622 | PHY_TO_DESC(EPBULK_IN), // bEndpointAddress |
| samux | 0:140cdf8e2d60 | 623 | 0x02, // bmAttributes (0x02=bulk) |
| samux | 0:140cdf8e2d60 | 624 | LSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (LSB) |
| samux | 0:140cdf8e2d60 | 625 | MSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (MSB) |
| samux | 0:140cdf8e2d60 | 626 | 0, // bInterval |
| samux | 0:140cdf8e2d60 | 627 | |
| samux | 0:140cdf8e2d60 | 628 | // endpoint descriptor, USB spec 9.6.6, page 269-271, Table 9-13 |
| samux | 0:140cdf8e2d60 | 629 | 7, // bLength |
| samux | 0:140cdf8e2d60 | 630 | 5, // bDescriptorType |
| samux | 0:140cdf8e2d60 | 631 | PHY_TO_DESC(EPBULK_OUT), // bEndpointAddress |
| samux | 0:140cdf8e2d60 | 632 | 0x02, // bmAttributes (0x02=bulk) |
| samux | 0:140cdf8e2d60 | 633 | LSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (LSB) |
| samux | 0:140cdf8e2d60 | 634 | MSB(MAX_PACKET_SIZE_EPBULK),// wMaxPacketSize (MSB) |
| samux | 0:140cdf8e2d60 | 635 | 0 // bInterval |
| samux | 0:140cdf8e2d60 | 636 | }; |
| samux | 0:140cdf8e2d60 | 637 | return configDescriptor; |
| samux | 0:140cdf8e2d60 | 638 | } |