Norimasa Okamoto / LPC4088-USBHost

Simple USBHost library for LPC4088. Backward compatibility of official-USBHost.

Dependencies:   FATFileSystem mbed-rtos

EA LPC4088 QSB専用の簡易USBホストライブラリです。
official-USBHostの下位互換で対応プログラムを僅かな修正で動かすことが出来ます。
examples:

Import programLPC4088-USBHostMSD_HelloWorld

Simple USBHost MSD(USB flash drive) for EA LPC4088 QSB test program

Last commit 25 Apr 2014 by Norimasa Okamoto

Import programLPC4088-BTstack_example

BTstack for EA LPC4088 QSB example program

Last commit 25 Apr 2014 by Norimasa Okamoto

Import programLPC4088-USBHostC270_example

Simple USBHost WebCam for EA LPC4088 QSB/LPC1768 test program

Last commit 25 Apr 2014 by Norimasa Okamoto

USBHostMSD/USBHostMSD.cpp@0:148fca6fd246, 2014-04-25 (annotated)

Committer:
va009039
Date:
Fri Apr 25 05:18:55 2014 +0000
Revision:
0:148fca6fd246
first commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
va009039 0:148fca6fd246 1 /* mbed USBHost Library
va009039 0:148fca6fd246 2 * Copyright (c) 2006-2013 ARM Limited
va009039 0:148fca6fd246 3 *
va009039 0:148fca6fd246 4 * Licensed under the Apache License, Version 2.0 (the "License");
va009039 0:148fca6fd246 5 * you may not use this file except in compliance with the License.
va009039 0:148fca6fd246 6 * You may obtain a copy of the License at
va009039 0:148fca6fd246 7 *
va009039 0:148fca6fd246 8 * http://www.apache.org/licenses/LICENSE-2.0
va009039 0:148fca6fd246 9 *
va009039 0:148fca6fd246 10 * Unless required by applicable law or agreed to in writing, software
va009039 0:148fca6fd246 11 * distributed under the License is distributed on an "AS IS" BASIS,
va009039 0:148fca6fd246 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
va009039 0:148fca6fd246 13 * See the License for the specific language governing permissions and
va009039 0:148fca6fd246 14 * limitations under the License.
va009039 0:148fca6fd246 15 */
va009039 0:148fca6fd246 16
va009039 0:148fca6fd246 17 #include "USBHostMSD.h"
va009039 0:148fca6fd246 18
va009039 0:148fca6fd246 19 #if USBHOST_MSD
va009039 0:148fca6fd246 20
va009039 0:148fca6fd246 21 #include "dbg.h"
va009039 0:148fca6fd246 22
va009039 0:148fca6fd246 23 #define CBW_SIGNATURE 0x43425355
va009039 0:148fca6fd246 24 #define CSW_SIGNATURE 0x53425355
va009039 0:148fca6fd246 25
va009039 0:148fca6fd246 26 #define DEVICE_TO_HOST 0x80
va009039 0:148fca6fd246 27 #define HOST_TO_DEVICE 0x00
va009039 0:148fca6fd246 28
va009039 0:148fca6fd246 29 #define GET_MAX_LUN (0xFE)
va009039 0:148fca6fd246 30 #define BO_MASS_STORAGE_RESET (0xFF)
va009039 0:148fca6fd246 31
va009039 0:148fca6fd246 32 USBHostMSD::USBHostMSD(const char * rootdir) : FATFileSystem(rootdir)
va009039 0:148fca6fd246 33 {
va009039 0:148fca6fd246 34 host = USBHost::getHostInst();
va009039 0:148fca6fd246 35 init();
va009039 0:148fca6fd246 36 }
va009039 0:148fca6fd246 37
va009039 0:148fca6fd246 38 void USBHostMSD::init() {
va009039 0:148fca6fd246 39 dev_connected = false;
va009039 0:148fca6fd246 40 dev = NULL;
va009039 0:148fca6fd246 41 bulk_in = NULL;
va009039 0:148fca6fd246 42 bulk_out = NULL;
va009039 0:148fca6fd246 43 dev_connected = false;
va009039 0:148fca6fd246 44 blockSize = 0;
va009039 0:148fca6fd246 45 blockCount = 0;
va009039 0:148fca6fd246 46 msd_intf = -1;
va009039 0:148fca6fd246 47 msd_device_found = false;
va009039 0:148fca6fd246 48 disk_init = false;
va009039 0:148fca6fd246 49 dev_connected = false;
va009039 0:148fca6fd246 50 nb_ep = 0;
va009039 0:148fca6fd246 51 }
va009039 0:148fca6fd246 52
va009039 0:148fca6fd246 53
va009039 0:148fca6fd246 54 bool USBHostMSD::connected()
va009039 0:148fca6fd246 55 {
va009039 0:148fca6fd246 56 return dev_connected;
va009039 0:148fca6fd246 57 }
va009039 0:148fca6fd246 58
va009039 0:148fca6fd246 59 bool USBHostMSD::connect()
va009039 0:148fca6fd246 60 {
va009039 0:148fca6fd246 61
va009039 0:148fca6fd246 62 if (dev_connected) {
va009039 0:148fca6fd246 63 return true;
va009039 0:148fca6fd246 64 }
va009039 0:148fca6fd246 65
va009039 0:148fca6fd246 66 for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) {
va009039 0:148fca6fd246 67 if ((dev = host->getDevice(i)) != NULL) {
va009039 0:148fca6fd246 68
va009039 0:148fca6fd246 69 USB_DBG("Trying to connect MSD device\r\n");
va009039 0:148fca6fd246 70
va009039 0:148fca6fd246 71 if(host->enumerate(dev, this))
va009039 0:148fca6fd246 72 break;
va009039 0:148fca6fd246 73
va009039 0:148fca6fd246 74 if (msd_device_found) {
va009039 0:148fca6fd246 75 bulk_in = dev->getEndpoint(msd_intf, BULK_ENDPOINT, IN);
va009039 0:148fca6fd246 76 bulk_out = dev->getEndpoint(msd_intf, BULK_ENDPOINT, OUT);
va009039 0:148fca6fd246 77
va009039 0:148fca6fd246 78 if (!bulk_in || !bulk_out)
va009039 0:148fca6fd246 79 continue;
va009039 0:148fca6fd246 80
va009039 0:148fca6fd246 81 USB_INFO("New MSD device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, msd_intf);
va009039 0:148fca6fd246 82 dev->setName("MSD", msd_intf);
va009039 0:148fca6fd246 83 host->registerDriver(dev, msd_intf, this, &USBHostMSD::init);
va009039 0:148fca6fd246 84
va009039 0:148fca6fd246 85 dev_connected = true;
va009039 0:148fca6fd246 86 return true;
va009039 0:148fca6fd246 87 }
va009039 0:148fca6fd246 88 } //if()
va009039 0:148fca6fd246 89 } //for()
va009039 0:148fca6fd246 90 init();
va009039 0:148fca6fd246 91 return false;
va009039 0:148fca6fd246 92 }
va009039 0:148fca6fd246 93
va009039 0:148fca6fd246 94 /*virtual*/ void USBHostMSD::setVidPid(uint16_t vid, uint16_t pid)
va009039 0:148fca6fd246 95 {
va009039 0:148fca6fd246 96 // we don't check VID/PID for MSD driver
va009039 0:148fca6fd246 97 }
va009039 0:148fca6fd246 98
va009039 0:148fca6fd246 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
va009039 0:148fca6fd246 100 {
va009039 0:148fca6fd246 101 if ((msd_intf == -1) &&
va009039 0:148fca6fd246 102 (intf_class == MSD_CLASS) &&
va009039 0:148fca6fd246 103 (intf_subclass == 0x06) &&
va009039 0:148fca6fd246 104 (intf_protocol == 0x50)) {
va009039 0:148fca6fd246 105 msd_intf = intf_nb;
va009039 0:148fca6fd246 106 return true;
va009039 0:148fca6fd246 107 }
va009039 0:148fca6fd246 108 return false;
va009039 0:148fca6fd246 109 }
va009039 0:148fca6fd246 110
va009039 0:148fca6fd246 111 /*virtual*/ bool USBHostMSD::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used
va009039 0:148fca6fd246 112 {
va009039 0:148fca6fd246 113 if (intf_nb == msd_intf) {
va009039 0:148fca6fd246 114 if (type == BULK_ENDPOINT) {
va009039 0:148fca6fd246 115 nb_ep++;
va009039 0:148fca6fd246 116 if (nb_ep == 2)
va009039 0:148fca6fd246 117 msd_device_found = true;
va009039 0:148fca6fd246 118 return true;
va009039 0:148fca6fd246 119 }
va009039 0:148fca6fd246 120 }
va009039 0:148fca6fd246 121 return false;
va009039 0:148fca6fd246 122 }
va009039 0:148fca6fd246 123
va009039 0:148fca6fd246 124
va009039 0:148fca6fd246 125 int USBHostMSD::testUnitReady() {
va009039 0:148fca6fd246 126 USB_DBG("Test unit ready");
va009039 0:148fca6fd246 127 return SCSITransfer(NULL, 6, DEVICE_TO_HOST, 0, 0);
va009039 0:148fca6fd246 128 }
va009039 0:148fca6fd246 129
va009039 0:148fca6fd246 130
va009039 0:148fca6fd246 131 int USBHostMSD::readCapacity() {
va009039 0:148fca6fd246 132 USB_DBG("Read capacity");
va009039 0:148fca6fd246 133 uint8_t cmd[10] = {0x25,0,0,0,0,0,0,0,0,0};
va009039 0:148fca6fd246 134 uint8_t result[8];
va009039 0:148fca6fd246 135 int status = SCSITransfer(cmd, 10, DEVICE_TO_HOST, result, 8);
va009039 0:148fca6fd246 136 if (status == 0) {
va009039 0:148fca6fd246 137 blockCount = (result[0] << 24) | (result[1] << 16) | (result[2] << 8) | result[3];
va009039 0:148fca6fd246 138 blockSize = (result[4] << 24) | (result[5] << 16) | (result[6] << 8) | result[7];
va009039 0:148fca6fd246 139 USB_INFO("MSD [dev: %p] - blockCount: %lld, blockSize: %d, Capacity: %lld\r\n", dev, blockCount, blockSize, blockCount*blockSize);
va009039 0:148fca6fd246 140 }
va009039 0:148fca6fd246 141 return status;
va009039 0:148fca6fd246 142 }
va009039 0:148fca6fd246 143
va009039 0:148fca6fd246 144
va009039 0:148fca6fd246 145 int USBHostMSD::SCSIRequestSense() {
va009039 0:148fca6fd246 146 USB_DBG("Request sense");
va009039 0:148fca6fd246 147 uint8_t cmd[6] = {0x03,0,0,0,18,0};
va009039 0:148fca6fd246 148 uint8_t result[18];
va009039 0:148fca6fd246 149 int status = SCSITransfer(cmd, 6, DEVICE_TO_HOST, result, 18);
va009039 0:148fca6fd246 150 return status;
va009039 0:148fca6fd246 151 }
va009039 0:148fca6fd246 152
va009039 0:148fca6fd246 153
va009039 0:148fca6fd246 154 int USBHostMSD::inquiry(uint8_t lun, uint8_t page_code) {
va009039 0:148fca6fd246 155 USB_DBG("Inquiry");
va009039 0:148fca6fd246 156 uint8_t evpd = (page_code == 0) ? 0 : 1;
va009039 0:148fca6fd246 157 uint8_t cmd[6] = {0x12, uint8_t((lun << 5) | evpd), page_code, 0, 36, 0};
va009039 0:148fca6fd246 158 uint8_t result[36];
va009039 0:148fca6fd246 159 int status = SCSITransfer(cmd, 6, DEVICE_TO_HOST, result, 36);
va009039 0:148fca6fd246 160 if (status == 0) {
va009039 0:148fca6fd246 161 char vid_pid[17];
va009039 0:148fca6fd246 162 memcpy(vid_pid, &result[8], 8);
va009039 0:148fca6fd246 163 vid_pid[8] = 0;
va009039 0:148fca6fd246 164 USB_INFO("MSD [dev: %p] - Vendor ID: %s", dev, vid_pid);
va009039 0:148fca6fd246 165
va009039 0:148fca6fd246 166 memcpy(vid_pid, &result[16], 16);
va009039 0:148fca6fd246 167 vid_pid[16] = 0;
va009039 0:148fca6fd246 168 USB_INFO("MSD [dev: %p] - Product ID: %s", dev, vid_pid);
va009039 0:148fca6fd246 169
va009039 0:148fca6fd246 170 memcpy(vid_pid, &result[32], 4);
va009039 0:148fca6fd246 171 vid_pid[4] = 0;
va009039 0:148fca6fd246 172 USB_INFO("MSD [dev: %p] - Product rev: %s", dev, vid_pid);
va009039 0:148fca6fd246 173 }
va009039 0:148fca6fd246 174 return status;
va009039 0:148fca6fd246 175 }
va009039 0:148fca6fd246 176
va009039 0:148fca6fd246 177 int USBHostMSD::checkResult(uint8_t res, USBEndpoint * ep) {
va009039 0:148fca6fd246 178 // if ep stalled: send clear feature
va009039 0:148fca6fd246 179 if (res == USB_TYPE_STALL_ERROR) {
va009039 0:148fca6fd246 180 res = host->controlWrite( dev,
va009039 0:148fca6fd246 181 USB_RECIPIENT_ENDPOINT | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_STANDARD,
va009039 0:148fca6fd246 182 CLEAR_FEATURE,
va009039 0:148fca6fd246 183 0, ep->getAddress(), NULL, 0);
va009039 0:148fca6fd246 184 // set state to IDLE if clear feature successful
va009039 0:148fca6fd246 185 if (res == USB_TYPE_OK) {
va009039 0:148fca6fd246 186 ep->setState(USB_TYPE_IDLE);
va009039 0:148fca6fd246 187 }
va009039 0:148fca6fd246 188 }
va009039 0:148fca6fd246 189
va009039 0:148fca6fd246 190 if (res != USB_TYPE_OK)
va009039 0:148fca6fd246 191 return -1;
va009039 0:148fca6fd246 192
va009039 0:148fca6fd246 193 return 0;
va009039 0:148fca6fd246 194 }
va009039 0:148fca6fd246 195
va009039 0:148fca6fd246 196
va009039 0:148fca6fd246 197 int USBHostMSD::SCSITransfer(uint8_t * cmd, uint8_t cmd_len, int flags, uint8_t * data, uint32_t transfer_len) {
va009039 0:148fca6fd246 198
va009039 0:148fca6fd246 199 int res = 0;
va009039 0:148fca6fd246 200
va009039 0:148fca6fd246 201 cbw.Signature = CBW_SIGNATURE;
va009039 0:148fca6fd246 202 cbw.Tag = 0;
va009039 0:148fca6fd246 203 cbw.DataLength = transfer_len;
va009039 0:148fca6fd246 204 cbw.Flags = flags;
va009039 0:148fca6fd246 205 cbw.LUN = 0;
va009039 0:148fca6fd246 206 cbw.CBLength = cmd_len;
va009039 0:148fca6fd246 207 memset(cbw.CB,0,sizeof(cbw.CB));
va009039 0:148fca6fd246 208 if (cmd) {
va009039 0:148fca6fd246 209 memcpy(cbw.CB,cmd,cmd_len);
va009039 0:148fca6fd246 210 }
va009039 0:148fca6fd246 211
va009039 0:148fca6fd246 212 // send the cbw
va009039 0:148fca6fd246 213 USB_DBG("Send CBW");
va009039 0:148fca6fd246 214 res = host->bulkWrite(dev, bulk_out,(uint8_t *)&cbw, 31);
va009039 0:148fca6fd246 215 if (checkResult(res, bulk_out))
va009039 0:148fca6fd246 216 return -1;
va009039 0:148fca6fd246 217
va009039 0:148fca6fd246 218 // data stage if needed
va009039 0:148fca6fd246 219 if (data) {
va009039 0:148fca6fd246 220 USB_DBG("data stage");
va009039 0:148fca6fd246 221 if (flags == HOST_TO_DEVICE) {
va009039 0:148fca6fd246 222
va009039 0:148fca6fd246 223 res = host->bulkWrite(dev, bulk_out, data, transfer_len);
va009039 0:148fca6fd246 224 if (checkResult(res, bulk_out))
va009039 0:148fca6fd246 225 return -1;
va009039 0:148fca6fd246 226
va009039 0:148fca6fd246 227 } else if (flags == DEVICE_TO_HOST) {
va009039 0:148fca6fd246 228
va009039 0:148fca6fd246 229 res = host->bulkRead(dev, bulk_in, data, transfer_len);
va009039 0:148fca6fd246 230 if (checkResult(res, bulk_in))
va009039 0:148fca6fd246 231 return -1;
va009039 0:148fca6fd246 232 }
va009039 0:148fca6fd246 233 }
va009039 0:148fca6fd246 234
va009039 0:148fca6fd246 235 // status stage
va009039 0:148fca6fd246 236 csw.Signature = 0;
va009039 0:148fca6fd246 237 USB_DBG("Read CSW");
va009039 0:148fca6fd246 238 res = host->bulkRead(dev, bulk_in,(uint8_t *)&csw, 13);
va009039 0:148fca6fd246 239 if (checkResult(res, bulk_in))
va009039 0:148fca6fd246 240 return -1;
va009039 0:148fca6fd246 241
va009039 0:148fca6fd246 242 if (csw.Signature != CSW_SIGNATURE) {
va009039 0:148fca6fd246 243 return -1;
va009039 0:148fca6fd246 244 }
va009039 0:148fca6fd246 245
va009039 0:148fca6fd246 246 USB_DBG("recv csw: status: %d", csw.Status);
va009039 0:148fca6fd246 247
va009039 0:148fca6fd246 248 // ModeSense?
va009039 0:148fca6fd246 249 if ((csw.Status == 1) && (cmd[0] != 0x03)) {
va009039 0:148fca6fd246 250 USB_DBG("request mode sense");
va009039 0:148fca6fd246 251 return SCSIRequestSense();
va009039 0:148fca6fd246 252 }
va009039 0:148fca6fd246 253
va009039 0:148fca6fd246 254 // perform reset recovery
va009039 0:148fca6fd246 255 if ((csw.Status == 2) && (cmd[0] != 0x03)) {
va009039 0:148fca6fd246 256
va009039 0:148fca6fd246 257 // send Bulk-Only Mass Storage Reset request
va009039 0:148fca6fd246 258 res = host->controlWrite( dev,
va009039 0:148fca6fd246 259 USB_RECIPIENT_INTERFACE | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS,
va009039 0:148fca6fd246 260 BO_MASS_STORAGE_RESET,
va009039 0:148fca6fd246 261 0, msd_intf, NULL, 0);
va009039 0:148fca6fd246 262
va009039 0:148fca6fd246 263 // unstall both endpoints
va009039 0:148fca6fd246 264 res = host->controlWrite( dev,
va009039 0:148fca6fd246 265 USB_RECIPIENT_ENDPOINT | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_STANDARD,
va009039 0:148fca6fd246 266 CLEAR_FEATURE,
va009039 0:148fca6fd246 267 0, bulk_in->getAddress(), NULL, 0);
va009039 0:148fca6fd246 268
va009039 0:148fca6fd246 269 res = host->controlWrite( dev,
va009039 0:148fca6fd246 270 USB_RECIPIENT_ENDPOINT | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_STANDARD,
va009039 0:148fca6fd246 271 CLEAR_FEATURE,
va009039 0:148fca6fd246 272 0, bulk_out->getAddress(), NULL, 0);
va009039 0:148fca6fd246 273
va009039 0:148fca6fd246 274 }
va009039 0:148fca6fd246 275
va009039 0:148fca6fd246 276 return csw.Status;
va009039 0:148fca6fd246 277 }
va009039 0:148fca6fd246 278
va009039 0:148fca6fd246 279
va009039 0:148fca6fd246 280 int USBHostMSD::dataTransfer(uint8_t * buf, uint32_t block, uint8_t nbBlock, int direction) {
va009039 0:148fca6fd246 281 uint8_t cmd[10];
va009039 0:148fca6fd246 282 memset(cmd,0,10);
va009039 0:148fca6fd246 283 cmd[0] = (direction == DEVICE_TO_HOST) ? 0x28 : 0x2A;
va009039 0:148fca6fd246 284
va009039 0:148fca6fd246 285 cmd[2] = (block >> 24) & 0xff;
va009039 0:148fca6fd246 286 cmd[3] = (block >> 16) & 0xff;
va009039 0:148fca6fd246 287 cmd[4] = (block >> 8) & 0xff;
va009039 0:148fca6fd246 288 cmd[5] = block & 0xff;
va009039 0:148fca6fd246 289
va009039 0:148fca6fd246 290 cmd[7] = (nbBlock >> 8) & 0xff;
va009039 0:148fca6fd246 291 cmd[8] = nbBlock & 0xff;
va009039 0:148fca6fd246 292
va009039 0:148fca6fd246 293 return SCSITransfer(cmd, 10, direction, buf, blockSize*nbBlock);
va009039 0:148fca6fd246 294 }
va009039 0:148fca6fd246 295
va009039 0:148fca6fd246 296 int USBHostMSD::getMaxLun() {
va009039 0:148fca6fd246 297 uint8_t buf[1], res;
va009039 0:148fca6fd246 298 res = host->controlRead( dev, USB_RECIPIENT_INTERFACE | USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS,
va009039 0:148fca6fd246 299 0xfe, 0, msd_intf, buf, 1);
va009039 0:148fca6fd246 300 USB_DBG("max lun: %d", buf[0]);
va009039 0:148fca6fd246 301 return res;
va009039 0:148fca6fd246 302 }
va009039 0:148fca6fd246 303
va009039 0:148fca6fd246 304 int USBHostMSD::disk_initialize() {
va009039 0:148fca6fd246 305 USB_DBG("FILESYSTEM: init");
va009039 0:148fca6fd246 306 /* U16 */int i, timeout = 10;
va009039 0:148fca6fd246 307
va009039 0:148fca6fd246 308 getMaxLun();
va009039 0:148fca6fd246 309
va009039 0:148fca6fd246 310 for (i = 0; i < timeout; i++) {
va009039 0:148fca6fd246 311 wait_ms(100); //Thread::wait(100);
va009039 0:148fca6fd246 312 if (!testUnitReady())
va009039 0:148fca6fd246 313 break;
va009039 0:148fca6fd246 314 }
va009039 0:148fca6fd246 315
va009039 0:148fca6fd246 316 if (i == timeout) {
va009039 0:148fca6fd246 317 disk_init = false;
va009039 0:148fca6fd246 318 return -1;
va009039 0:148fca6fd246 319 }
va009039 0:148fca6fd246 320
va009039 0:148fca6fd246 321 inquiry(0, 0);
va009039 0:148fca6fd246 322 disk_init = 1;
va009039 0:148fca6fd246 323 return readCapacity();
va009039 0:148fca6fd246 324 }
va009039 0:148fca6fd246 325
va009039 0:148fca6fd246 326 int USBHostMSD::disk_write(const uint8_t *buffer, uint64_t block_number) {
va009039 0:148fca6fd246 327 USB_DBG("FILESYSTEM: write block: %lld", block_number);
va009039 0:148fca6fd246 328 if (!disk_init) {
va009039 0:148fca6fd246 329 disk_initialize();
va009039 0:148fca6fd246 330 }
va009039 0:148fca6fd246 331 if (!disk_init)
va009039 0:148fca6fd246 332 return -1;
va009039 0:148fca6fd246 333 return dataTransfer((uint8_t *)buffer, block_number, 1, HOST_TO_DEVICE);
va009039 0:148fca6fd246 334 }
va009039 0:148fca6fd246 335
va009039 0:148fca6fd246 336 int USBHostMSD::disk_read(uint8_t * buffer, uint64_t block_number) {
va009039 0:148fca6fd246 337 USB_DBG("FILESYSTEM: read block %lld", block_number);
va009039 0:148fca6fd246 338 if (!disk_init) {
va009039 0:148fca6fd246 339 disk_initialize();
va009039 0:148fca6fd246 340 }
va009039 0:148fca6fd246 341 if (!disk_init)
va009039 0:148fca6fd246 342 return -1;
va009039 0:148fca6fd246 343 return dataTransfer((uint8_t *)buffer, block_number, 1, DEVICE_TO_HOST);
va009039 0:148fca6fd246 344 }
va009039 0:148fca6fd246 345
va009039 0:148fca6fd246 346 uint64_t USBHostMSD::disk_sectors() {
va009039 0:148fca6fd246 347 USB_DBG("FILESYSTEM: sectors");
va009039 0:148fca6fd246 348 if (!disk_init) {
va009039 0:148fca6fd246 349 disk_initialize();
va009039 0:148fca6fd246 350 }
va009039 0:148fca6fd246 351 if (!disk_init)
va009039 0:148fca6fd246 352 return 0;
va009039 0:148fca6fd246 353 return blockCount;
va009039 0:148fca6fd246 354 }
va009039 0:148fca6fd246 355
va009039 0:148fca6fd246 356 #endif