Takuya Urakawa / F401RE-USBHost

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Dependencies:   FATFileSystem

Dependents:   F401RE-USBHostMIDI_RecieveExample

Fork of F401RE-USBHost by Norimasa Okamoto

USBHostMSD.cpp@1:c072d9e580b0, 2014-01-21 (annotated)

Committer:
va009039
Date:
Tue Jan 21 08:59:28 2014 +0000
Revision:
1:c072d9e580b0
add USBHostMSD

Who changed what in which revision?

UserRevisionLine numberNew contents of line
va009039 1:c072d9e580b0 1 /* mbed USBHost Library
va009039 1:c072d9e580b0 2 * Copyright (c) 2006-2013 ARM Limited
va009039 1:c072d9e580b0 3 *
va009039 1:c072d9e580b0 4 * Licensed under the Apache License, Version 2.0 (the "License");
va009039 1:c072d9e580b0 5 * you may not use this file except in compliance with the License.
va009039 1:c072d9e580b0 6 * You may obtain a copy of the License at
va009039 1:c072d9e580b0 7 *
va009039 1:c072d9e580b0 8 * http://www.apache.org/licenses/LICENSE-2.0
va009039 1:c072d9e580b0 9 *
va009039 1:c072d9e580b0 10 * Unless required by applicable law or agreed to in writing, software
va009039 1:c072d9e580b0 11 * distributed under the License is distributed on an "AS IS" BASIS,
va009039 1:c072d9e580b0 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
va009039 1:c072d9e580b0 13 * See the License for the specific language governing permissions and
va009039 1:c072d9e580b0 14 * limitations under the License.
va009039 1:c072d9e580b0 15 */
va009039 1:c072d9e580b0 16
va009039 1:c072d9e580b0 17 #include "USBHostMSD.h"
va009039 1:c072d9e580b0 18
va009039 1:c072d9e580b0 19 #define CBW_SIGNATURE 0x43425355
va009039 1:c072d9e580b0 20 #define CSW_SIGNATURE 0x53425355
va009039 1:c072d9e580b0 21
va009039 1:c072d9e580b0 22 #define DEVICE_TO_HOST 0x80
va009039 1:c072d9e580b0 23 #define HOST_TO_DEVICE 0x00
va009039 1:c072d9e580b0 24
va009039 1:c072d9e580b0 25 #define GET_MAX_LUN (0xFE)
va009039 1:c072d9e580b0 26 #define BO_MASS_STORAGE_RESET (0xFF)
va009039 1:c072d9e580b0 27
va009039 1:c072d9e580b0 28 USBHostMSD::USBHostMSD(const char * rootdir) : FATFileSystem(rootdir)
va009039 1:c072d9e580b0 29 {
va009039 1:c072d9e580b0 30 host = USBHost::getHostInst();
va009039 1:c072d9e580b0 31 init();
va009039 1:c072d9e580b0 32 }
va009039 1:c072d9e580b0 33
va009039 1:c072d9e580b0 34 void USBHostMSD::init() {
va009039 1:c072d9e580b0 35 dev_connected = false;
va009039 1:c072d9e580b0 36 dev = NULL;
va009039 1:c072d9e580b0 37 bulk_in = NULL;
va009039 1:c072d9e580b0 38 bulk_out = NULL;
va009039 1:c072d9e580b0 39 dev_connected = false;
va009039 1:c072d9e580b0 40 blockSize = 0;
va009039 1:c072d9e580b0 41 blockCount = 0;
va009039 1:c072d9e580b0 42 msd_intf = 1; //msd_intf = -1;
va009039 1:c072d9e580b0 43 msd_device_found = false;
va009039 1:c072d9e580b0 44 disk_init = false;
va009039 1:c072d9e580b0 45 dev_connected = false;
va009039 1:c072d9e580b0 46 nb_ep = 0;
va009039 1:c072d9e580b0 47 }
va009039 1:c072d9e580b0 48
va009039 1:c072d9e580b0 49
va009039 1:c072d9e580b0 50 bool USBHostMSD::connected()
va009039 1:c072d9e580b0 51 {
va009039 1:c072d9e580b0 52 return true;
va009039 1:c072d9e580b0 53 }
va009039 1:c072d9e580b0 54
va009039 1:c072d9e580b0 55 bool USBHostMSD::connect()
va009039 1:c072d9e580b0 56 {
va009039 1:c072d9e580b0 57 return true;
va009039 1:c072d9e580b0 58 }
va009039 1:c072d9e580b0 59
va009039 1:c072d9e580b0 60 int USBHostMSD::testUnitReady() {
va009039 1:c072d9e580b0 61 USB_DBG("Test unit ready");
va009039 1:c072d9e580b0 62 return SCSITransfer(NULL, 6, DEVICE_TO_HOST, 0, 0);
va009039 1:c072d9e580b0 63 }
va009039 1:c072d9e580b0 64
va009039 1:c072d9e580b0 65
va009039 1:c072d9e580b0 66 int USBHostMSD::readCapacity() {
va009039 1:c072d9e580b0 67 USB_DBG("Read capacity");
va009039 1:c072d9e580b0 68 uint8_t cmd[10] = {0x25,0,0,0,0,0,0,0,0,0};
va009039 1:c072d9e580b0 69 uint8_t result[8];
va009039 1:c072d9e580b0 70 int status = SCSITransfer(cmd, 10, DEVICE_TO_HOST, result, 8);
va009039 1:c072d9e580b0 71 if (status == 0) {
va009039 1:c072d9e580b0 72 blockCount = (result[0] << 24) | (result[1] << 16) | (result[2] << 8) | result[3];
va009039 1:c072d9e580b0 73 blockSize = (result[4] << 24) | (result[5] << 16) | (result[6] << 8) | result[7];
va009039 1:c072d9e580b0 74 USB_INFO("MSD [dev: %p] - blockCount: %lld, blockSize: %d, Capacity: %lld\r\n", dev, blockCount, blockSize, blockCount*blockSize);
va009039 1:c072d9e580b0 75 }
va009039 1:c072d9e580b0 76 return status;
va009039 1:c072d9e580b0 77 }
va009039 1:c072d9e580b0 78
va009039 1:c072d9e580b0 79
va009039 1:c072d9e580b0 80 int USBHostMSD::SCSIRequestSense() {
va009039 1:c072d9e580b0 81 USB_DBG("Request sense");
va009039 1:c072d9e580b0 82 uint8_t cmd[6] = {0x03,0,0,0,18,0};
va009039 1:c072d9e580b0 83 uint8_t result[18];
va009039 1:c072d9e580b0 84 int status = SCSITransfer(cmd, 6, DEVICE_TO_HOST, result, 18);
va009039 1:c072d9e580b0 85 return status;
va009039 1:c072d9e580b0 86 }
va009039 1:c072d9e580b0 87
va009039 1:c072d9e580b0 88
va009039 1:c072d9e580b0 89 int USBHostMSD::inquiry(uint8_t lun, uint8_t page_code) {
va009039 1:c072d9e580b0 90 USB_DBG("Inquiry");
va009039 1:c072d9e580b0 91 uint8_t evpd = (page_code == 0) ? 0 : 1;
va009039 1:c072d9e580b0 92 uint8_t cmd[6] = {0x12, (lun << 5) | evpd, page_code, 0, 36, 0};
va009039 1:c072d9e580b0 93 uint8_t result[36];
va009039 1:c072d9e580b0 94 int status = SCSITransfer(cmd, 6, DEVICE_TO_HOST, result, 36);
va009039 1:c072d9e580b0 95 if (status == 0) {
va009039 1:c072d9e580b0 96 char vid_pid[17];
va009039 1:c072d9e580b0 97 memcpy(vid_pid, &result[8], 8);
va009039 1:c072d9e580b0 98 vid_pid[8] = 0;
va009039 1:c072d9e580b0 99 USB_INFO("MSD [dev: %p] - Vendor ID: %s", dev, vid_pid);
va009039 1:c072d9e580b0 100
va009039 1:c072d9e580b0 101 memcpy(vid_pid, &result[16], 16);
va009039 1:c072d9e580b0 102 vid_pid[16] = 0;
va009039 1:c072d9e580b0 103 USB_INFO("MSD [dev: %p] - Product ID: %s", dev, vid_pid);
va009039 1:c072d9e580b0 104
va009039 1:c072d9e580b0 105 memcpy(vid_pid, &result[32], 4);
va009039 1:c072d9e580b0 106 vid_pid[4] = 0;
va009039 1:c072d9e580b0 107 USB_INFO("MSD [dev: %p] - Product rev: %s", dev, vid_pid);
va009039 1:c072d9e580b0 108 }
va009039 1:c072d9e580b0 109 return status;
va009039 1:c072d9e580b0 110 }
va009039 1:c072d9e580b0 111
va009039 1:c072d9e580b0 112 int USBHostMSD::checkResult(uint8_t res, USBEndpoint * ep) {
va009039 1:c072d9e580b0 113 // if ep stalled: send clear feature
va009039 1:c072d9e580b0 114 if (res == USB_TYPE_STALL_ERROR) {
va009039 1:c072d9e580b0 115 res = controlWrite(dev,
va009039 1:c072d9e580b0 116 USB_RECIPIENT_ENDPOINT | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_STANDARD,
va009039 1:c072d9e580b0 117 CLEAR_FEATURE,
va009039 1:c072d9e580b0 118 0, ep->getAddress(), NULL, 0);
va009039 1:c072d9e580b0 119 // set state to IDLE if clear feature successful
va009039 1:c072d9e580b0 120 if (res == USB_TYPE_OK) {
va009039 1:c072d9e580b0 121 ep->setState(USB_TYPE_IDLE);
va009039 1:c072d9e580b0 122 }
va009039 1:c072d9e580b0 123 }
va009039 1:c072d9e580b0 124
va009039 1:c072d9e580b0 125 if (res != USB_TYPE_OK)
va009039 1:c072d9e580b0 126 return -1;
va009039 1:c072d9e580b0 127
va009039 1:c072d9e580b0 128 return 0;
va009039 1:c072d9e580b0 129 }
va009039 1:c072d9e580b0 130
va009039 1:c072d9e580b0 131
va009039 1:c072d9e580b0 132 int USBHostMSD::SCSITransfer(uint8_t * cmd, uint8_t cmd_len, int flags, uint8_t * data, uint32_t transfer_len) {
va009039 1:c072d9e580b0 133
va009039 1:c072d9e580b0 134 int res = 0;
va009039 1:c072d9e580b0 135
va009039 1:c072d9e580b0 136 cbw.Signature = CBW_SIGNATURE;
va009039 1:c072d9e580b0 137 cbw.Tag = 0;
va009039 1:c072d9e580b0 138 cbw.DataLength = transfer_len;
va009039 1:c072d9e580b0 139 cbw.Flags = flags;
va009039 1:c072d9e580b0 140 cbw.LUN = 0;
va009039 1:c072d9e580b0 141 cbw.CBLength = cmd_len;
va009039 1:c072d9e580b0 142 memset(cbw.CB,0,sizeof(cbw.CB));
va009039 1:c072d9e580b0 143 if (cmd) {
va009039 1:c072d9e580b0 144 memcpy(cbw.CB,cmd,cmd_len);
va009039 1:c072d9e580b0 145 }
va009039 1:c072d9e580b0 146
va009039 1:c072d9e580b0 147 // send the cbw
va009039 1:c072d9e580b0 148 USB_DBG("Send CBW");
va009039 1:c072d9e580b0 149 res = bulkWrite(dev, bulk_out,(uint8_t *)&cbw, 31);
va009039 1:c072d9e580b0 150 if (checkResult(res, bulk_out))
va009039 1:c072d9e580b0 151 return -1;
va009039 1:c072d9e580b0 152
va009039 1:c072d9e580b0 153 // data stage if needed
va009039 1:c072d9e580b0 154 if (data) {
va009039 1:c072d9e580b0 155 USB_DBG("data stage");
va009039 1:c072d9e580b0 156 if (flags == HOST_TO_DEVICE) {
va009039 1:c072d9e580b0 157
va009039 1:c072d9e580b0 158 res = bulkWrite(dev, bulk_out, data, transfer_len);
va009039 1:c072d9e580b0 159 if (checkResult(res, bulk_out))
va009039 1:c072d9e580b0 160 return -1;
va009039 1:c072d9e580b0 161
va009039 1:c072d9e580b0 162 } else if (flags == DEVICE_TO_HOST) {
va009039 1:c072d9e580b0 163
va009039 1:c072d9e580b0 164 res = bulkRead(dev, bulk_in, data, transfer_len);
va009039 1:c072d9e580b0 165 if (checkResult(res, bulk_in))
va009039 1:c072d9e580b0 166 return -1;
va009039 1:c072d9e580b0 167 }
va009039 1:c072d9e580b0 168 }
va009039 1:c072d9e580b0 169
va009039 1:c072d9e580b0 170 // status stage
va009039 1:c072d9e580b0 171 csw.Signature = 0;
va009039 1:c072d9e580b0 172 USB_DBG("Read CSW");
va009039 1:c072d9e580b0 173 res = bulkRead(dev, bulk_in,(uint8_t *)&csw, 13);
va009039 1:c072d9e580b0 174 if (checkResult(res, bulk_in))
va009039 1:c072d9e580b0 175 return -1;
va009039 1:c072d9e580b0 176
va009039 1:c072d9e580b0 177 if (csw.Signature != CSW_SIGNATURE) {
va009039 1:c072d9e580b0 178 return -1;
va009039 1:c072d9e580b0 179 }
va009039 1:c072d9e580b0 180
va009039 1:c072d9e580b0 181 USB_DBG("recv csw: status: %d", csw.Status);
va009039 1:c072d9e580b0 182
va009039 1:c072d9e580b0 183 // ModeSense?
va009039 1:c072d9e580b0 184 if ((csw.Status == 1) && (cmd[0] != 0x03)) {
va009039 1:c072d9e580b0 185 USB_DBG("request mode sense");
va009039 1:c072d9e580b0 186 return SCSIRequestSense();
va009039 1:c072d9e580b0 187 }
va009039 1:c072d9e580b0 188
va009039 1:c072d9e580b0 189 // perform reset recovery
va009039 1:c072d9e580b0 190 if ((csw.Status == 2) && (cmd[0] != 0x03)) {
va009039 1:c072d9e580b0 191
va009039 1:c072d9e580b0 192 // send Bulk-Only Mass Storage Reset request
va009039 1:c072d9e580b0 193 res = controlWrite( dev,
va009039 1:c072d9e580b0 194 USB_RECIPIENT_INTERFACE | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS,
va009039 1:c072d9e580b0 195 BO_MASS_STORAGE_RESET,
va009039 1:c072d9e580b0 196 0, msd_intf, NULL, 0);
va009039 1:c072d9e580b0 197
va009039 1:c072d9e580b0 198 // unstall both endpoints
va009039 1:c072d9e580b0 199 res = controlWrite( dev,
va009039 1:c072d9e580b0 200 USB_RECIPIENT_ENDPOINT | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_STANDARD,
va009039 1:c072d9e580b0 201 CLEAR_FEATURE,
va009039 1:c072d9e580b0 202 0, bulk_in->getAddress(), NULL, 0);
va009039 1:c072d9e580b0 203
va009039 1:c072d9e580b0 204 res = controlWrite( dev,
va009039 1:c072d9e580b0 205 USB_RECIPIENT_ENDPOINT | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_STANDARD,
va009039 1:c072d9e580b0 206 CLEAR_FEATURE,
va009039 1:c072d9e580b0 207 0, bulk_out->getAddress(), NULL, 0);
va009039 1:c072d9e580b0 208
va009039 1:c072d9e580b0 209 }
va009039 1:c072d9e580b0 210
va009039 1:c072d9e580b0 211 return csw.Status;
va009039 1:c072d9e580b0 212 }
va009039 1:c072d9e580b0 213
va009039 1:c072d9e580b0 214
va009039 1:c072d9e580b0 215 int USBHostMSD::dataTransfer(uint8_t * buf, uint32_t block, uint8_t nbBlock, int direction) {
va009039 1:c072d9e580b0 216 uint8_t cmd[10];
va009039 1:c072d9e580b0 217 memset(cmd,0,10);
va009039 1:c072d9e580b0 218 cmd[0] = (direction == DEVICE_TO_HOST) ? 0x28 : 0x2A;
va009039 1:c072d9e580b0 219
va009039 1:c072d9e580b0 220 cmd[2] = (block >> 24) & 0xff;
va009039 1:c072d9e580b0 221 cmd[3] = (block >> 16) & 0xff;
va009039 1:c072d9e580b0 222 cmd[4] = (block >> 8) & 0xff;
va009039 1:c072d9e580b0 223 cmd[5] = block & 0xff;
va009039 1:c072d9e580b0 224
va009039 1:c072d9e580b0 225 cmd[7] = (nbBlock >> 8) & 0xff;
va009039 1:c072d9e580b0 226 cmd[8] = nbBlock & 0xff;
va009039 1:c072d9e580b0 227
va009039 1:c072d9e580b0 228 return SCSITransfer(cmd, 10, direction, buf, blockSize*nbBlock);
va009039 1:c072d9e580b0 229 }
va009039 1:c072d9e580b0 230
va009039 1:c072d9e580b0 231 int USBHostMSD::getMaxLun() {
va009039 1:c072d9e580b0 232 uint8_t buf[1], res;
va009039 1:c072d9e580b0 233 res = controlRead( dev, USB_RECIPIENT_INTERFACE | USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS,
va009039 1:c072d9e580b0 234 0xfe, 0, msd_intf, buf, 1);
va009039 1:c072d9e580b0 235 USB_DBG("max lun: %d", buf[0]);
va009039 1:c072d9e580b0 236 return res;
va009039 1:c072d9e580b0 237 }
va009039 1:c072d9e580b0 238
va009039 1:c072d9e580b0 239 int USBHostMSD::disk_initialize() {
va009039 1:c072d9e580b0 240 USB_DBG("FILESYSTEM: init");
va009039 1:c072d9e580b0 241 int i, timeout = 10;
va009039 1:c072d9e580b0 242
va009039 1:c072d9e580b0 243 //getMaxLun();
va009039 1:c072d9e580b0 244
va009039 1:c072d9e580b0 245 for (i = 0; i < timeout; i++) {
va009039 1:c072d9e580b0 246 wait_ms(100);
va009039 1:c072d9e580b0 247 if (!testUnitReady())
va009039 1:c072d9e580b0 248 break;
va009039 1:c072d9e580b0 249 }
va009039 1:c072d9e580b0 250
va009039 1:c072d9e580b0 251 if (i == timeout) {
va009039 1:c072d9e580b0 252 disk_init = false;
va009039 1:c072d9e580b0 253 return -1;
va009039 1:c072d9e580b0 254 }
va009039 1:c072d9e580b0 255
va009039 1:c072d9e580b0 256 inquiry(0, 0);
va009039 1:c072d9e580b0 257 disk_init = 1;
va009039 1:c072d9e580b0 258 return readCapacity();
va009039 1:c072d9e580b0 259 }
va009039 1:c072d9e580b0 260
va009039 1:c072d9e580b0 261 int USBHostMSD::disk_write(const uint8_t *buffer, uint64_t block_number) {
va009039 1:c072d9e580b0 262 USB_DBG("FILESYSTEM: write block: %lld", block_number);
va009039 1:c072d9e580b0 263 if (!disk_init) {
va009039 1:c072d9e580b0 264 disk_initialize();
va009039 1:c072d9e580b0 265 }
va009039 1:c072d9e580b0 266 if (!disk_init)
va009039 1:c072d9e580b0 267 return -1;
va009039 1:c072d9e580b0 268 return dataTransfer((uint8_t *)buffer, block_number, 1, HOST_TO_DEVICE);
va009039 1:c072d9e580b0 269 }
va009039 1:c072d9e580b0 270
va009039 1:c072d9e580b0 271 int USBHostMSD::disk_read(uint8_t * buffer, uint64_t block_number) {
va009039 1:c072d9e580b0 272 USB_DBG("FILESYSTEM: read block %lld", block_number);
va009039 1:c072d9e580b0 273 if (!disk_init) {
va009039 1:c072d9e580b0 274 disk_initialize();
va009039 1:c072d9e580b0 275 }
va009039 1:c072d9e580b0 276 if (!disk_init)
va009039 1:c072d9e580b0 277 return -1;
va009039 1:c072d9e580b0 278 return dataTransfer((uint8_t *)buffer, block_number, 1, DEVICE_TO_HOST);
va009039 1:c072d9e580b0 279 }
va009039 1:c072d9e580b0 280
va009039 1:c072d9e580b0 281 uint64_t USBHostMSD::disk_sectors() {
va009039 1:c072d9e580b0 282 USB_DBG("FILESYSTEM: sectors");
va009039 1:c072d9e580b0 283 if (!disk_init) {
va009039 1:c072d9e580b0 284 disk_initialize();
va009039 1:c072d9e580b0 285 }
va009039 1:c072d9e580b0 286 if (!disk_init)
va009039 1:c072d9e580b0 287 return 0;
va009039 1:c072d9e580b0 288 return blockCount;
va009039 1:c072d9e580b0 289 }
va009039 1:c072d9e580b0 290