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libraries/USBHost/USBHostMSD/USBHostMSD.cpp@1:d96dbedaebdb, 2016-11-04 (annotated)

Committer:
nexpaq
Date:
Fri Nov 04 20:54:50 2016 +0000
Revision:
1:d96dbedaebdb
Parent:
0:6c56fb4bc5f0 
Removed extra directories for other platforms

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nexpaq 0:6c56fb4bc5f0 1 /* mbed USBHost Library
nexpaq 0:6c56fb4bc5f0 2 * Copyright (c) 2006-2013 ARM Limited
nexpaq 0:6c56fb4bc5f0 3 *
nexpaq 0:6c56fb4bc5f0 4 * Licensed under the Apache License, Version 2.0 (the "License");
nexpaq 0:6c56fb4bc5f0 5 * you may not use this file except in compliance with the License.
nexpaq 0:6c56fb4bc5f0 6 * You may obtain a copy of the License at
nexpaq 0:6c56fb4bc5f0 7 *
nexpaq 0:6c56fb4bc5f0 8 * http://www.apache.org/licenses/LICENSE-2.0
nexpaq 0:6c56fb4bc5f0 9 *
nexpaq 0:6c56fb4bc5f0 10 * Unless required by applicable law or agreed to in writing, software
nexpaq 0:6c56fb4bc5f0 11 * distributed under the License is distributed on an "AS IS" BASIS,
nexpaq 0:6c56fb4bc5f0 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
nexpaq 0:6c56fb4bc5f0 13 * See the License for the specific language governing permissions and
nexpaq 0:6c56fb4bc5f0 14 * limitations under the License.
nexpaq 0:6c56fb4bc5f0 15 */
nexpaq 0:6c56fb4bc5f0 16
nexpaq 0:6c56fb4bc5f0 17 #include "USBHostMSD.h"
nexpaq 0:6c56fb4bc5f0 18
nexpaq 0:6c56fb4bc5f0 19 #if USBHOST_MSD
nexpaq 0:6c56fb4bc5f0 20
nexpaq 0:6c56fb4bc5f0 21 #include "dbg.h"
nexpaq 0:6c56fb4bc5f0 22
nexpaq 0:6c56fb4bc5f0 23 #define CBW_SIGNATURE 0x43425355
nexpaq 0:6c56fb4bc5f0 24 #define CSW_SIGNATURE 0x53425355
nexpaq 0:6c56fb4bc5f0 25
nexpaq 0:6c56fb4bc5f0 26 #define DEVICE_TO_HOST 0x80
nexpaq 0:6c56fb4bc5f0 27 #define HOST_TO_DEVICE 0x00
nexpaq 0:6c56fb4bc5f0 28
nexpaq 0:6c56fb4bc5f0 29 #define GET_MAX_LUN (0xFE)
nexpaq 0:6c56fb4bc5f0 30 #define BO_MASS_STORAGE_RESET (0xFF)
nexpaq 0:6c56fb4bc5f0 31
nexpaq 0:6c56fb4bc5f0 32 USBHostMSD::USBHostMSD(const char * rootdir) : FATFileSystem(rootdir)
nexpaq 0:6c56fb4bc5f0 33 {
nexpaq 0:6c56fb4bc5f0 34 host = USBHost::getHostInst();
nexpaq 0:6c56fb4bc5f0 35 init();
nexpaq 0:6c56fb4bc5f0 36 }
nexpaq 0:6c56fb4bc5f0 37
nexpaq 0:6c56fb4bc5f0 38 void USBHostMSD::init() {
nexpaq 0:6c56fb4bc5f0 39 dev_connected = false;
nexpaq 0:6c56fb4bc5f0 40 dev = NULL;
nexpaq 0:6c56fb4bc5f0 41 bulk_in = NULL;
nexpaq 0:6c56fb4bc5f0 42 bulk_out = NULL;
nexpaq 0:6c56fb4bc5f0 43 dev_connected = false;
nexpaq 0:6c56fb4bc5f0 44 blockSize = 0;
nexpaq 0:6c56fb4bc5f0 45 blockCount = 0;
nexpaq 0:6c56fb4bc5f0 46 msd_intf = -1;
nexpaq 0:6c56fb4bc5f0 47 msd_device_found = false;
nexpaq 0:6c56fb4bc5f0 48 disk_init = false;
nexpaq 0:6c56fb4bc5f0 49 dev_connected = false;
nexpaq 0:6c56fb4bc5f0 50 nb_ep = 0;
nexpaq 0:6c56fb4bc5f0 51 }
nexpaq 0:6c56fb4bc5f0 52
nexpaq 0:6c56fb4bc5f0 53
nexpaq 0:6c56fb4bc5f0 54 bool USBHostMSD::connected()
nexpaq 0:6c56fb4bc5f0 55 {
nexpaq 0:6c56fb4bc5f0 56 return dev_connected;
nexpaq 0:6c56fb4bc5f0 57 }
nexpaq 0:6c56fb4bc5f0 58
nexpaq 0:6c56fb4bc5f0 59 bool USBHostMSD::connect()
nexpaq 0:6c56fb4bc5f0 60 {
nexpaq 0:6c56fb4bc5f0 61
nexpaq 0:6c56fb4bc5f0 62 if (dev_connected) {
nexpaq 0:6c56fb4bc5f0 63 return true;
nexpaq 0:6c56fb4bc5f0 64 }
nexpaq 0:6c56fb4bc5f0 65
nexpaq 0:6c56fb4bc5f0 66 for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) {
nexpaq 0:6c56fb4bc5f0 67 if ((dev = host->getDevice(i)) != NULL) {
nexpaq 0:6c56fb4bc5f0 68
nexpaq 0:6c56fb4bc5f0 69 USB_DBG("Trying to connect MSD device\r\n");
nexpaq 0:6c56fb4bc5f0 70
nexpaq 0:6c56fb4bc5f0 71 if(host->enumerate(dev, this))
nexpaq 0:6c56fb4bc5f0 72 break;
nexpaq 0:6c56fb4bc5f0 73
nexpaq 0:6c56fb4bc5f0 74 if (msd_device_found) {
nexpaq 0:6c56fb4bc5f0 75 bulk_in = dev->getEndpoint(msd_intf, BULK_ENDPOINT, IN);
nexpaq 0:6c56fb4bc5f0 76 bulk_out = dev->getEndpoint(msd_intf, BULK_ENDPOINT, OUT);
nexpaq 0:6c56fb4bc5f0 77
nexpaq 0:6c56fb4bc5f0 78 if (!bulk_in || !bulk_out)
nexpaq 0:6c56fb4bc5f0 79 continue;
nexpaq 0:6c56fb4bc5f0 80
nexpaq 0:6c56fb4bc5f0 81 USB_INFO("New MSD device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, msd_intf);
nexpaq 0:6c56fb4bc5f0 82 dev->setName("MSD", msd_intf);
nexpaq 0:6c56fb4bc5f0 83 host->registerDriver(dev, msd_intf, this, &USBHostMSD::init);
nexpaq 0:6c56fb4bc5f0 84
nexpaq 0:6c56fb4bc5f0 85 dev_connected = true;
nexpaq 0:6c56fb4bc5f0 86 return true;
nexpaq 0:6c56fb4bc5f0 87 }
nexpaq 0:6c56fb4bc5f0 88 } //if()
nexpaq 0:6c56fb4bc5f0 89 } //for()
nexpaq 0:6c56fb4bc5f0 90 init();
nexpaq 0:6c56fb4bc5f0 91 return false;
nexpaq 0:6c56fb4bc5f0 92 }
nexpaq 0:6c56fb4bc5f0 93
nexpaq 0:6c56fb4bc5f0 94 /*virtual*/ void USBHostMSD::setVidPid(uint16_t vid, uint16_t pid)
nexpaq 0:6c56fb4bc5f0 95 {
nexpaq 0:6c56fb4bc5f0 96 // we don't check VID/PID for MSD driver
nexpaq 0:6c56fb4bc5f0 97 }
nexpaq 0:6c56fb4bc5f0 98
nexpaq 0:6c56fb4bc5f0 99 /*virtual*/ bool USBHostMSD::parseInterface(uint8_t intf_nb, uint8_t intf_class, uint8_t intf_subclass, uint8_t intf_protocol) //Must return true if the interface should be parsed
nexpaq 0:6c56fb4bc5f0 100 {
nexpaq 0:6c56fb4bc5f0 101 if ((msd_intf == -1) &&
nexpaq 0:6c56fb4bc5f0 102 (intf_class == MSD_CLASS) &&
nexpaq 0:6c56fb4bc5f0 103 (intf_subclass == 0x06) &&
nexpaq 0:6c56fb4bc5f0 104 (intf_protocol == 0x50)) {
nexpaq 0:6c56fb4bc5f0 105 msd_intf = intf_nb;
nexpaq 0:6c56fb4bc5f0 106 return true;
nexpaq 0:6c56fb4bc5f0 107 }
nexpaq 0:6c56fb4bc5f0 108 return false;
nexpaq 0:6c56fb4bc5f0 109 }
nexpaq 0:6c56fb4bc5f0 110
nexpaq 0:6c56fb4bc5f0 111 /*virtual*/ bool USBHostMSD::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used
nexpaq 0:6c56fb4bc5f0 112 {
nexpaq 0:6c56fb4bc5f0 113 if (intf_nb == msd_intf) {
nexpaq 0:6c56fb4bc5f0 114 if (type == BULK_ENDPOINT) {
nexpaq 0:6c56fb4bc5f0 115 nb_ep++;
nexpaq 0:6c56fb4bc5f0 116 if (nb_ep == 2)
nexpaq 0:6c56fb4bc5f0 117 msd_device_found = true;
nexpaq 0:6c56fb4bc5f0 118 return true;
nexpaq 0:6c56fb4bc5f0 119 }
nexpaq 0:6c56fb4bc5f0 120 }
nexpaq 0:6c56fb4bc5f0 121 return false;
nexpaq 0:6c56fb4bc5f0 122 }
nexpaq 0:6c56fb4bc5f0 123
nexpaq 0:6c56fb4bc5f0 124
nexpaq 0:6c56fb4bc5f0 125 int USBHostMSD::testUnitReady() {
nexpaq 0:6c56fb4bc5f0 126 USB_DBG("Test unit ready");
nexpaq 0:6c56fb4bc5f0 127 return SCSITransfer(NULL, 6, DEVICE_TO_HOST, 0, 0);
nexpaq 0:6c56fb4bc5f0 128 }
nexpaq 0:6c56fb4bc5f0 129
nexpaq 0:6c56fb4bc5f0 130
nexpaq 0:6c56fb4bc5f0 131 int USBHostMSD::readCapacity() {
nexpaq 0:6c56fb4bc5f0 132 USB_DBG("Read capacity");
nexpaq 0:6c56fb4bc5f0 133 uint8_t cmd[10] = {0x25,0,0,0,0,0,0,0,0,0};
nexpaq 0:6c56fb4bc5f0 134 uint8_t result[8];
nexpaq 0:6c56fb4bc5f0 135 int status = SCSITransfer(cmd, 10, DEVICE_TO_HOST, result, 8);
nexpaq 0:6c56fb4bc5f0 136 if (status == 0) {
nexpaq 0:6c56fb4bc5f0 137 blockCount = (result[0] << 24) | (result[1] << 16) | (result[2] << 8) | result[3];
nexpaq 0:6c56fb4bc5f0 138 blockSize = (result[4] << 24) | (result[5] << 16) | (result[6] << 8) | result[7];
nexpaq 0:6c56fb4bc5f0 139 USB_INFO("MSD [dev: %p] - blockCount: %u, blockSize: %d, Capacity: %d\r\n", dev, blockCount, blockSize, blockCount*blockSize);
nexpaq 0:6c56fb4bc5f0 140 }
nexpaq 0:6c56fb4bc5f0 141 return status;
nexpaq 0:6c56fb4bc5f0 142 }
nexpaq 0:6c56fb4bc5f0 143
nexpaq 0:6c56fb4bc5f0 144
nexpaq 0:6c56fb4bc5f0 145 int USBHostMSD::SCSIRequestSense() {
nexpaq 0:6c56fb4bc5f0 146 USB_DBG("Request sense");
nexpaq 0:6c56fb4bc5f0 147 uint8_t cmd[6] = {0x03,0,0,0,18,0};
nexpaq 0:6c56fb4bc5f0 148 uint8_t result[18];
nexpaq 0:6c56fb4bc5f0 149 int status = SCSITransfer(cmd, 6, DEVICE_TO_HOST, result, 18);
nexpaq 0:6c56fb4bc5f0 150 return status;
nexpaq 0:6c56fb4bc5f0 151 }
nexpaq 0:6c56fb4bc5f0 152
nexpaq 0:6c56fb4bc5f0 153
nexpaq 0:6c56fb4bc5f0 154 int USBHostMSD::inquiry(uint8_t lun, uint8_t page_code) {
nexpaq 0:6c56fb4bc5f0 155 USB_DBG("Inquiry");
nexpaq 0:6c56fb4bc5f0 156 uint8_t evpd = (page_code == 0) ? 0 : 1;
nexpaq 0:6c56fb4bc5f0 157 uint8_t cmd[6] = {0x12, uint8_t((lun << 5) | evpd), page_code, 0, 36, 0};
nexpaq 0:6c56fb4bc5f0 158 uint8_t result[36];
nexpaq 0:6c56fb4bc5f0 159 int status = SCSITransfer(cmd, 6, DEVICE_TO_HOST, result, 36);
nexpaq 0:6c56fb4bc5f0 160 if (status == 0) {
nexpaq 0:6c56fb4bc5f0 161 char vid_pid[17];
nexpaq 0:6c56fb4bc5f0 162 memcpy(vid_pid, &result[8], 8);
nexpaq 0:6c56fb4bc5f0 163 vid_pid[8] = 0;
nexpaq 0:6c56fb4bc5f0 164 USB_INFO("MSD [dev: %p] - Vendor ID: %s", dev, vid_pid);
nexpaq 0:6c56fb4bc5f0 165
nexpaq 0:6c56fb4bc5f0 166 memcpy(vid_pid, &result[16], 16);
nexpaq 0:6c56fb4bc5f0 167 vid_pid[16] = 0;
nexpaq 0:6c56fb4bc5f0 168 USB_INFO("MSD [dev: %p] - Product ID: %s", dev, vid_pid);
nexpaq 0:6c56fb4bc5f0 169
nexpaq 0:6c56fb4bc5f0 170 memcpy(vid_pid, &result[32], 4);
nexpaq 0:6c56fb4bc5f0 171 vid_pid[4] = 0;
nexpaq 0:6c56fb4bc5f0 172 USB_INFO("MSD [dev: %p] - Product rev: %s", dev, vid_pid);
nexpaq 0:6c56fb4bc5f0 173 }
nexpaq 0:6c56fb4bc5f0 174 return status;
nexpaq 0:6c56fb4bc5f0 175 }
nexpaq 0:6c56fb4bc5f0 176
nexpaq 0:6c56fb4bc5f0 177 int USBHostMSD::checkResult(uint8_t res, USBEndpoint * ep) {
nexpaq 0:6c56fb4bc5f0 178 // if ep stalled: send clear feature
nexpaq 0:6c56fb4bc5f0 179 if (res == USB_TYPE_STALL_ERROR) {
nexpaq 0:6c56fb4bc5f0 180 res = host->controlWrite( dev,
nexpaq 0:6c56fb4bc5f0 181 USB_RECIPIENT_ENDPOINT | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_STANDARD,
nexpaq 0:6c56fb4bc5f0 182 CLEAR_FEATURE,
nexpaq 0:6c56fb4bc5f0 183 0, ep->getAddress(), NULL, 0);
nexpaq 0:6c56fb4bc5f0 184 // set state to IDLE if clear feature successful
nexpaq 0:6c56fb4bc5f0 185 if (res == USB_TYPE_OK) {
nexpaq 0:6c56fb4bc5f0 186 ep->setState(USB_TYPE_IDLE);
nexpaq 0:6c56fb4bc5f0 187 }
nexpaq 0:6c56fb4bc5f0 188 }
nexpaq 0:6c56fb4bc5f0 189
nexpaq 0:6c56fb4bc5f0 190 if (res != USB_TYPE_OK)
nexpaq 0:6c56fb4bc5f0 191 return -1;
nexpaq 0:6c56fb4bc5f0 192
nexpaq 0:6c56fb4bc5f0 193 return 0;
nexpaq 0:6c56fb4bc5f0 194 }
nexpaq 0:6c56fb4bc5f0 195
nexpaq 0:6c56fb4bc5f0 196
nexpaq 0:6c56fb4bc5f0 197 int USBHostMSD::SCSITransfer(uint8_t * cmd, uint8_t cmd_len, int flags, uint8_t * data, uint32_t transfer_len) {
nexpaq 0:6c56fb4bc5f0 198
nexpaq 0:6c56fb4bc5f0 199 int res = 0;
nexpaq 0:6c56fb4bc5f0 200
nexpaq 0:6c56fb4bc5f0 201 cbw.Signature = CBW_SIGNATURE;
nexpaq 0:6c56fb4bc5f0 202 cbw.Tag = 0;
nexpaq 0:6c56fb4bc5f0 203 cbw.DataLength = transfer_len;
nexpaq 0:6c56fb4bc5f0 204 cbw.Flags = flags;
nexpaq 0:6c56fb4bc5f0 205 cbw.LUN = 0;
nexpaq 0:6c56fb4bc5f0 206 cbw.CBLength = cmd_len;
nexpaq 0:6c56fb4bc5f0 207 memset(cbw.CB,0,sizeof(cbw.CB));
nexpaq 0:6c56fb4bc5f0 208 if (cmd) {
nexpaq 0:6c56fb4bc5f0 209 memcpy(cbw.CB,cmd,cmd_len);
nexpaq 0:6c56fb4bc5f0 210 }
nexpaq 0:6c56fb4bc5f0 211
nexpaq 0:6c56fb4bc5f0 212 // send the cbw
nexpaq 0:6c56fb4bc5f0 213 USB_DBG("Send CBW");
nexpaq 0:6c56fb4bc5f0 214 res = host->bulkWrite(dev, bulk_out,(uint8_t *)&cbw, 31);
nexpaq 0:6c56fb4bc5f0 215 if (checkResult(res, bulk_out))
nexpaq 0:6c56fb4bc5f0 216 return -1;
nexpaq 0:6c56fb4bc5f0 217
nexpaq 0:6c56fb4bc5f0 218 // data stage if needed
nexpaq 0:6c56fb4bc5f0 219 if (data) {
nexpaq 0:6c56fb4bc5f0 220 USB_DBG("data stage");
nexpaq 0:6c56fb4bc5f0 221 if (flags == HOST_TO_DEVICE) {
nexpaq 0:6c56fb4bc5f0 222
nexpaq 0:6c56fb4bc5f0 223 res = host->bulkWrite(dev, bulk_out, data, transfer_len);
nexpaq 0:6c56fb4bc5f0 224 if (checkResult(res, bulk_out))
nexpaq 0:6c56fb4bc5f0 225 return -1;
nexpaq 0:6c56fb4bc5f0 226
nexpaq 0:6c56fb4bc5f0 227 } else if (flags == DEVICE_TO_HOST) {
nexpaq 0:6c56fb4bc5f0 228
nexpaq 0:6c56fb4bc5f0 229 res = host->bulkRead(dev, bulk_in, data, transfer_len);
nexpaq 0:6c56fb4bc5f0 230 if (checkResult(res, bulk_in))
nexpaq 0:6c56fb4bc5f0 231 return -1;
nexpaq 0:6c56fb4bc5f0 232 }
nexpaq 0:6c56fb4bc5f0 233 }
nexpaq 0:6c56fb4bc5f0 234
nexpaq 0:6c56fb4bc5f0 235 // status stage
nexpaq 0:6c56fb4bc5f0 236 csw.Signature = 0;
nexpaq 0:6c56fb4bc5f0 237 USB_DBG("Read CSW");
nexpaq 0:6c56fb4bc5f0 238 res = host->bulkRead(dev, bulk_in,(uint8_t *)&csw, 13);
nexpaq 0:6c56fb4bc5f0 239 if (checkResult(res, bulk_in))
nexpaq 0:6c56fb4bc5f0 240 return -1;
nexpaq 0:6c56fb4bc5f0 241
nexpaq 0:6c56fb4bc5f0 242 if (csw.Signature != CSW_SIGNATURE) {
nexpaq 0:6c56fb4bc5f0 243 return -1;
nexpaq 0:6c56fb4bc5f0 244 }
nexpaq 0:6c56fb4bc5f0 245
nexpaq 0:6c56fb4bc5f0 246 USB_DBG("recv csw: status: %d", csw.Status);
nexpaq 0:6c56fb4bc5f0 247
nexpaq 0:6c56fb4bc5f0 248 // ModeSense?
nexpaq 0:6c56fb4bc5f0 249 if ((csw.Status == 1) && (cmd[0] != 0x03)) {
nexpaq 0:6c56fb4bc5f0 250 USB_DBG("request mode sense");
nexpaq 0:6c56fb4bc5f0 251 return SCSIRequestSense();
nexpaq 0:6c56fb4bc5f0 252 }
nexpaq 0:6c56fb4bc5f0 253
nexpaq 0:6c56fb4bc5f0 254 // perform reset recovery
nexpaq 0:6c56fb4bc5f0 255 if ((csw.Status == 2) && (cmd[0] != 0x03)) {
nexpaq 0:6c56fb4bc5f0 256
nexpaq 0:6c56fb4bc5f0 257 // send Bulk-Only Mass Storage Reset request
nexpaq 0:6c56fb4bc5f0 258 res = host->controlWrite( dev,
nexpaq 0:6c56fb4bc5f0 259 USB_RECIPIENT_INTERFACE | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS,
nexpaq 0:6c56fb4bc5f0 260 BO_MASS_STORAGE_RESET,
nexpaq 0:6c56fb4bc5f0 261 0, msd_intf, NULL, 0);
nexpaq 0:6c56fb4bc5f0 262
nexpaq 0:6c56fb4bc5f0 263 // unstall both endpoints
nexpaq 0:6c56fb4bc5f0 264 res = host->controlWrite( dev,
nexpaq 0:6c56fb4bc5f0 265 USB_RECIPIENT_ENDPOINT | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_STANDARD,
nexpaq 0:6c56fb4bc5f0 266 CLEAR_FEATURE,
nexpaq 0:6c56fb4bc5f0 267 0, bulk_in->getAddress(), NULL, 0);
nexpaq 0:6c56fb4bc5f0 268
nexpaq 0:6c56fb4bc5f0 269 res = host->controlWrite( dev,
nexpaq 0:6c56fb4bc5f0 270 USB_RECIPIENT_ENDPOINT | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_STANDARD,
nexpaq 0:6c56fb4bc5f0 271 CLEAR_FEATURE,
nexpaq 0:6c56fb4bc5f0 272 0, bulk_out->getAddress(), NULL, 0);
nexpaq 0:6c56fb4bc5f0 273
nexpaq 0:6c56fb4bc5f0 274 }
nexpaq 0:6c56fb4bc5f0 275
nexpaq 0:6c56fb4bc5f0 276 return csw.Status;
nexpaq 0:6c56fb4bc5f0 277 }
nexpaq 0:6c56fb4bc5f0 278
nexpaq 0:6c56fb4bc5f0 279
nexpaq 0:6c56fb4bc5f0 280 int USBHostMSD::dataTransfer(uint8_t * buf, uint32_t block, uint8_t nbBlock, int direction) {
nexpaq 0:6c56fb4bc5f0 281 uint8_t cmd[10];
nexpaq 0:6c56fb4bc5f0 282 memset(cmd,0,10);
nexpaq 0:6c56fb4bc5f0 283 cmd[0] = (direction == DEVICE_TO_HOST) ? 0x28 : 0x2A;
nexpaq 0:6c56fb4bc5f0 284
nexpaq 0:6c56fb4bc5f0 285 cmd[2] = (block >> 24) & 0xff;
nexpaq 0:6c56fb4bc5f0 286 cmd[3] = (block >> 16) & 0xff;
nexpaq 0:6c56fb4bc5f0 287 cmd[4] = (block >> 8) & 0xff;
nexpaq 0:6c56fb4bc5f0 288 cmd[5] = block & 0xff;
nexpaq 0:6c56fb4bc5f0 289
nexpaq 0:6c56fb4bc5f0 290 cmd[7] = (nbBlock >> 8) & 0xff;
nexpaq 0:6c56fb4bc5f0 291 cmd[8] = nbBlock & 0xff;
nexpaq 0:6c56fb4bc5f0 292
nexpaq 0:6c56fb4bc5f0 293 return SCSITransfer(cmd, 10, direction, buf, blockSize*nbBlock);
nexpaq 0:6c56fb4bc5f0 294 }
nexpaq 0:6c56fb4bc5f0 295
nexpaq 0:6c56fb4bc5f0 296 int USBHostMSD::getMaxLun() {
nexpaq 0:6c56fb4bc5f0 297 uint8_t buf[1], res;
nexpaq 0:6c56fb4bc5f0 298 res = host->controlRead( dev, USB_RECIPIENT_INTERFACE | USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS,
nexpaq 0:6c56fb4bc5f0 299 0xfe, 0, msd_intf, buf, 1);
nexpaq 0:6c56fb4bc5f0 300 USB_DBG("max lun: %d", buf[0]);
nexpaq 0:6c56fb4bc5f0 301 return res;
nexpaq 0:6c56fb4bc5f0 302 }
nexpaq 0:6c56fb4bc5f0 303
nexpaq 0:6c56fb4bc5f0 304 int USBHostMSD::disk_initialize() {
nexpaq 0:6c56fb4bc5f0 305 USB_DBG("FILESYSTEM: init");
nexpaq 0:6c56fb4bc5f0 306 uint16_t i, timeout = 10;
nexpaq 0:6c56fb4bc5f0 307
nexpaq 0:6c56fb4bc5f0 308 getMaxLun();
nexpaq 0:6c56fb4bc5f0 309
nexpaq 0:6c56fb4bc5f0 310 for (i = 0; i < timeout; i++) {
nexpaq 0:6c56fb4bc5f0 311 Thread::wait(100);
nexpaq 0:6c56fb4bc5f0 312 if (!testUnitReady())
nexpaq 0:6c56fb4bc5f0 313 break;
nexpaq 0:6c56fb4bc5f0 314 }
nexpaq 0:6c56fb4bc5f0 315
nexpaq 0:6c56fb4bc5f0 316 if (i == timeout) {
nexpaq 0:6c56fb4bc5f0 317 disk_init = false;
nexpaq 0:6c56fb4bc5f0 318 return -1;
nexpaq 0:6c56fb4bc5f0 319 }
nexpaq 0:6c56fb4bc5f0 320
nexpaq 0:6c56fb4bc5f0 321 inquiry(0, 0);
nexpaq 0:6c56fb4bc5f0 322 disk_init = 1;
nexpaq 0:6c56fb4bc5f0 323 return readCapacity();
nexpaq 0:6c56fb4bc5f0 324 }
nexpaq 0:6c56fb4bc5f0 325
nexpaq 0:6c56fb4bc5f0 326 int USBHostMSD::disk_write(const uint8_t* buffer, uint32_t block_number, uint32_t count) {
nexpaq 0:6c56fb4bc5f0 327 USB_DBG("FILESYSTEM: write block: %lld, count: %d", block_number, count);
nexpaq 0:6c56fb4bc5f0 328 if (!disk_init) {
nexpaq 0:6c56fb4bc5f0 329 disk_initialize();
nexpaq 0:6c56fb4bc5f0 330 }
nexpaq 0:6c56fb4bc5f0 331 if (!disk_init)
nexpaq 0:6c56fb4bc5f0 332 return -1;
nexpaq 0:6c56fb4bc5f0 333 for (uint32_t b = block_number; b < block_number + count; b++) {
nexpaq 0:6c56fb4bc5f0 334 if (dataTransfer((uint8_t*)buffer, b, 1, HOST_TO_DEVICE))
nexpaq 0:6c56fb4bc5f0 335 return -1;
nexpaq 0:6c56fb4bc5f0 336 buffer += 512;
nexpaq 0:6c56fb4bc5f0 337 }
nexpaq 0:6c56fb4bc5f0 338 return 0;
nexpaq 0:6c56fb4bc5f0 339 }
nexpaq 0:6c56fb4bc5f0 340
nexpaq 0:6c56fb4bc5f0 341 int USBHostMSD::disk_read(uint8_t* buffer, uint32_t block_number, uint32_t count) {
nexpaq 0:6c56fb4bc5f0 342 USB_DBG("FILESYSTEM: read block: %lld, count: %d", block_number, count);
nexpaq 0:6c56fb4bc5f0 343 if (!disk_init) {
nexpaq 0:6c56fb4bc5f0 344 disk_initialize();
nexpaq 0:6c56fb4bc5f0 345 }
nexpaq 0:6c56fb4bc5f0 346 if (!disk_init)
nexpaq 0:6c56fb4bc5f0 347 return -1;
nexpaq 0:6c56fb4bc5f0 348 for (uint32_t b = block_number; b < block_number + count; b++) {
nexpaq 0:6c56fb4bc5f0 349 if (dataTransfer((uint8_t*)buffer, b, 1, DEVICE_TO_HOST))
nexpaq 0:6c56fb4bc5f0 350 return -1;
nexpaq 0:6c56fb4bc5f0 351 buffer += 512;
nexpaq 0:6c56fb4bc5f0 352 }
nexpaq 0:6c56fb4bc5f0 353 return 0;
nexpaq 0:6c56fb4bc5f0 354 }
nexpaq 0:6c56fb4bc5f0 355
nexpaq 0:6c56fb4bc5f0 356 uint32_t USBHostMSD::disk_sectors() {
nexpaq 0:6c56fb4bc5f0 357 USB_DBG("FILESYSTEM: sectors");
nexpaq 0:6c56fb4bc5f0 358 if (!disk_init) {
nexpaq 0:6c56fb4bc5f0 359 disk_initialize();
nexpaq 0:6c56fb4bc5f0 360 }
nexpaq 0:6c56fb4bc5f0 361 if (!disk_init)
nexpaq 0:6c56fb4bc5f0 362 return 0;
nexpaq 0:6c56fb4bc5f0 363 return blockCount;
nexpaq 0:6c56fb4bc5f0 364 }
nexpaq 0:6c56fb4bc5f0 365
nexpaq 0:6c56fb4bc5f0 366 #endif