EmbeddedArtists AB / LPC4088-USBHost

Fork to update libraries and fix disk_read/disk_write functions

Dependencies:   FATFileSystem mbed-rtos

Dependents:   lpc4088_qsb_usbhost

Fork of LPC4088-USBHost by Norimasa Okamoto

USBHostMSD/USBHostMSD.cpp@1:5402b105b911, 2015-04-24 (annotated)

Committer:
embeddedartists
Date:
Fri Apr 24 06:11:09 2015 +0000
Revision:
1:5402b105b911
Parent:
0:148fca6fd246 
Updated libraries and had to fix the parameters to disk_read/disk_write

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
embeddedartists 1:5402b105b911 326 int USBHostMSD::disk_write(const uint8_t * buffer, uint64_t sector, uint8_t count) {
embeddedartists 1:5402b105b911 327 USB_DBG("FILESYSTEM: write block: %lld", sector);
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;
embeddedartists 1:5402b105b911 333 return dataTransfer((uint8_t *)buffer, sector, count, HOST_TO_DEVICE);
va009039 0:148fca6fd246 334 }
va009039 0:148fca6fd246 335
embeddedartists 1:5402b105b911 336 int USBHostMSD::disk_read(uint8_t * buffer, uint64_t sector, uint8_t count) {
embeddedartists 1:5402b105b911 337 USB_DBG("FILESYSTEM: read block %lld", sector);
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;
embeddedartists 1:5402b105b911 343 return dataTransfer((uint8_t *)buffer, sector, count, 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