Embedded Artists / DM_USBHost

Adaptation of the official mbed USBHost repository to work with the LPC4088 Display Module

Dependents:   DMSupport DMSupport DMSupport DMSupport

Fork of DM_USBHost by EmbeddedArtists AB

USBHostMSD/USBHostMSD.cpp@32:f2d129436056, 2019-10-23 (annotated)

Committer:
embeddedartists
Date:
Wed Oct 23 06:58:55 2019 +0000
Revision:
32:f2d129436056
Parent:
29:dc8179214fd7
Child:
33:819bbf04163b
Updates related to mbed OS 5

Who changed what in which revision?

UserRevisionLine numberNew contents of line
samux 8:93da8ea2708b 1 /* mbed USBHost Library
samux 8:93da8ea2708b 2 * Copyright (c) 2006-2013 ARM Limited
samux 8:93da8ea2708b 3 *
samux 8:93da8ea2708b 4 * Licensed under the Apache License, Version 2.0 (the "License");
samux 8:93da8ea2708b 5 * you may not use this file except in compliance with the License.
samux 8:93da8ea2708b 6 * You may obtain a copy of the License at
samux 8:93da8ea2708b 7 *
samux 8:93da8ea2708b 8 * http://www.apache.org/licenses/LICENSE-2.0
samux 8:93da8ea2708b 9 *
samux 8:93da8ea2708b 10 * Unless required by applicable law or agreed to in writing, software
samux 8:93da8ea2708b 11 * distributed under the License is distributed on an "AS IS" BASIS,
samux 8:93da8ea2708b 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
samux 8:93da8ea2708b 13 * See the License for the specific language governing permissions and
samux 8:93da8ea2708b 14 * limitations under the License.
samux 8:93da8ea2708b 15 */
mbed_official 0:a554658735bf 16
mbed_official 0:a554658735bf 17 #include "USBHostMSD.h"
embeddedartists 29:dc8179214fd7 18 #include "diskio.h"
mbed_official 0:a554658735bf 19
mbed_official 0:a554658735bf 20 #if USBHOST_MSD
mbed_official 0:a554658735bf 21
mbed_official 0:a554658735bf 22 #include "dbg.h"
mbed_official 0:a554658735bf 23
mbed_official 0:a554658735bf 24 #define CBW_SIGNATURE 0x43425355
mbed_official 0:a554658735bf 25 #define CSW_SIGNATURE 0x53425355
mbed_official 0:a554658735bf 26
mbed_official 0:a554658735bf 27 #define DEVICE_TO_HOST 0x80
mbed_official 0:a554658735bf 28 #define HOST_TO_DEVICE 0x00
mbed_official 0:a554658735bf 29
samux 4:b320d68e98e7 30 #define GET_MAX_LUN (0xFE)
samux 4:b320d68e98e7 31 #define BO_MASS_STORAGE_RESET (0xFF)
mbed_official 0:a554658735bf 32
mbed_official 0:a554658735bf 33 USBHostMSD::USBHostMSD(const char * rootdir) : FATFileSystem(rootdir)
mbed_official 0:a554658735bf 34 {
mbed_official 0:a554658735bf 35 host = USBHost::getHostInst();
mbed_official 0:a554658735bf 36 init();
embeddedartists 27:aa2fd412f1d3 37
embeddedartists 27:aa2fd412f1d3 38 cbw = (CBW*)host->getSafeMem(sizeof(CBW));
embeddedartists 27:aa2fd412f1d3 39 csw = (CSW*)host->getSafeMem(sizeof(CSW));
embeddedartists 27:aa2fd412f1d3 40 }
embeddedartists 27:aa2fd412f1d3 41
embeddedartists 27:aa2fd412f1d3 42 USBHostMSD::~USBHostMSD()
embeddedartists 27:aa2fd412f1d3 43 {
embeddedartists 27:aa2fd412f1d3 44 if (cbw != NULL) {
embeddedartists 27:aa2fd412f1d3 45 host->returnSafeMem((uint8_t*)cbw);
embeddedartists 27:aa2fd412f1d3 46 cbw = NULL;
embeddedartists 27:aa2fd412f1d3 47 }
embeddedartists 27:aa2fd412f1d3 48 if (csw != NULL) {
embeddedartists 27:aa2fd412f1d3 49 host->returnSafeMem((uint8_t*)csw);
embeddedartists 27:aa2fd412f1d3 50 csw = NULL;
embeddedartists 27:aa2fd412f1d3 51 }
mbed_official 0:a554658735bf 52 }
mbed_official 0:a554658735bf 53
mbed_official 0:a554658735bf 54 void USBHostMSD::init() {
mbed_official 0:a554658735bf 55 dev_connected = false;
mbed_official 0:a554658735bf 56 dev = NULL;
mbed_official 0:a554658735bf 57 bulk_in = NULL;
mbed_official 0:a554658735bf 58 bulk_out = NULL;
mbed_official 0:a554658735bf 59 blockSize = 0;
mbed_official 0:a554658735bf 60 blockCount = 0;
mbed_official 0:a554658735bf 61 msd_intf = -1;
mbed_official 0:a554658735bf 62 msd_device_found = false;
mbed_official 0:a554658735bf 63 disk_init = false;
samux 4:b320d68e98e7 64 nb_ep = 0;
mbed_official 0:a554658735bf 65 }
mbed_official 0:a554658735bf 66
mbed_official 0:a554658735bf 67
mbed_official 0:a554658735bf 68 bool USBHostMSD::connected()
mbed_official 0:a554658735bf 69 {
mbed_official 0:a554658735bf 70 return dev_connected;
mbed_official 0:a554658735bf 71 }
mbed_official 0:a554658735bf 72
mbed_official 0:a554658735bf 73 bool USBHostMSD::connect()
mbed_official 0:a554658735bf 74 {
mbed_official 0:a554658735bf 75
mbed_official 0:a554658735bf 76 if (dev_connected) {
mbed_official 0:a554658735bf 77 return true;
mbed_official 0:a554658735bf 78 }
mbed_official 0:a554658735bf 79
samux 5:e48791a1ef18 80 for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) {
mbed_official 0:a554658735bf 81 if ((dev = host->getDevice(i)) != NULL) {
mbed_official 24:868cbfe611a7 82
samux 4:b320d68e98e7 83 USB_DBG("Trying to connect MSD device\r\n");
mbed_official 24:868cbfe611a7 84
mbed_official 0:a554658735bf 85 if(host->enumerate(dev, this))
mbed_official 0:a554658735bf 86 break;
mbed_official 0:a554658735bf 87
mbed_official 0:a554658735bf 88 if (msd_device_found) {
mbed_official 0:a554658735bf 89 bulk_in = dev->getEndpoint(msd_intf, BULK_ENDPOINT, IN);
mbed_official 0:a554658735bf 90 bulk_out = dev->getEndpoint(msd_intf, BULK_ENDPOINT, OUT);
mbed_official 24:868cbfe611a7 91
mbed_official 0:a554658735bf 92 if (!bulk_in || !bulk_out)
samux 4:b320d68e98e7 93 continue;
mbed_official 24:868cbfe611a7 94
samux 4:b320d68e98e7 95 USB_INFO("New MSD device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, msd_intf);
samux 4:b320d68e98e7 96 dev->setName("MSD", msd_intf);
mbed_official 0:a554658735bf 97 host->registerDriver(dev, msd_intf, this, &USBHostMSD::init);
mbed_official 0:a554658735bf 98
mbed_official 0:a554658735bf 99 dev_connected = true;
mbed_official 0:a554658735bf 100 return true;
mbed_official 0:a554658735bf 101 }
mbed_official 0:a554658735bf 102 } //if()
mbed_official 0:a554658735bf 103 } //for()
samux 4:b320d68e98e7 104 init();
mbed_official 0:a554658735bf 105 return false;
mbed_official 0:a554658735bf 106 }
mbed_official 0:a554658735bf 107
mbed_official 0:a554658735bf 108 /*virtual*/ void USBHostMSD::setVidPid(uint16_t vid, uint16_t pid)
mbed_official 0:a554658735bf 109 {
mbed_official 0:a554658735bf 110 // we don't check VID/PID for MSD driver
mbed_official 0:a554658735bf 111 }
mbed_official 0:a554658735bf 112
mbed_official 0:a554658735bf 113 /*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
mbed_official 0:a554658735bf 114 {
mbed_official 0:a554658735bf 115 if ((msd_intf == -1) &&
mbed_official 0:a554658735bf 116 (intf_class == MSD_CLASS) &&
mbed_official 0:a554658735bf 117 (intf_subclass == 0x06) &&
mbed_official 0:a554658735bf 118 (intf_protocol == 0x50)) {
mbed_official 0:a554658735bf 119 msd_intf = intf_nb;
mbed_official 0:a554658735bf 120 return true;
mbed_official 0:a554658735bf 121 }
mbed_official 0:a554658735bf 122 return false;
mbed_official 0:a554658735bf 123 }
mbed_official 0:a554658735bf 124
mbed_official 0:a554658735bf 125 /*virtual*/ bool USBHostMSD::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used
mbed_official 0:a554658735bf 126 {
mbed_official 0:a554658735bf 127 if (intf_nb == msd_intf) {
mbed_official 0:a554658735bf 128 if (type == BULK_ENDPOINT) {
samux 4:b320d68e98e7 129 nb_ep++;
samux 4:b320d68e98e7 130 if (nb_ep == 2)
samux 4:b320d68e98e7 131 msd_device_found = true;
mbed_official 0:a554658735bf 132 return true;
mbed_official 0:a554658735bf 133 }
mbed_official 0:a554658735bf 134 }
mbed_official 0:a554658735bf 135 return false;
mbed_official 0:a554658735bf 136 }
mbed_official 0:a554658735bf 137
mbed_official 0:a554658735bf 138
mbed_official 0:a554658735bf 139 int USBHostMSD::testUnitReady() {
samux 4:b320d68e98e7 140 USB_DBG("Test unit ready");
mbed_official 0:a554658735bf 141 return SCSITransfer(NULL, 6, DEVICE_TO_HOST, 0, 0);
mbed_official 0:a554658735bf 142 }
mbed_official 0:a554658735bf 143
samux 4:b320d68e98e7 144
mbed_official 0:a554658735bf 145 int USBHostMSD::readCapacity() {
samux 4:b320d68e98e7 146 USB_DBG("Read capacity");
mbed_official 0:a554658735bf 147 uint8_t cmd[10] = {0x25,0,0,0,0,0,0,0,0,0};
embeddedartists 27:aa2fd412f1d3 148 uint8_t* result = host->getSafeMem(8);
mbed_official 0:a554658735bf 149 int status = SCSITransfer(cmd, 10, DEVICE_TO_HOST, result, 8);
mbed_official 0:a554658735bf 150 if (status == 0) {
mbed_official 0:a554658735bf 151 blockCount = (result[0] << 24) | (result[1] << 16) | (result[2] << 8) | result[3];
mbed_official 0:a554658735bf 152 blockSize = (result[4] << 24) | (result[5] << 16) | (result[6] << 8) | result[7];
samux 4:b320d68e98e7 153 USB_INFO("MSD [dev: %p] - blockCount: %lld, blockSize: %d, Capacity: %lld\r\n", dev, blockCount, blockSize, blockCount*blockSize);
mbed_official 0:a554658735bf 154 }
embeddedartists 27:aa2fd412f1d3 155 host->returnSafeMem(result);
mbed_official 0:a554658735bf 156 return status;
mbed_official 0:a554658735bf 157 }
mbed_official 0:a554658735bf 158
mbed_official 0:a554658735bf 159
mbed_official 0:a554658735bf 160 int USBHostMSD::SCSIRequestSense() {
samux 4:b320d68e98e7 161 USB_DBG("Request sense");
samux 4:b320d68e98e7 162 uint8_t cmd[6] = {0x03,0,0,0,18,0};
embeddedartists 27:aa2fd412f1d3 163 uint8_t* result = host->getSafeMem(18);
samux 4:b320d68e98e7 164 int status = SCSITransfer(cmd, 6, DEVICE_TO_HOST, result, 18);
embeddedartists 27:aa2fd412f1d3 165 host->returnSafeMem(result);
mbed_official 0:a554658735bf 166 return status;
mbed_official 0:a554658735bf 167 }
mbed_official 0:a554658735bf 168
mbed_official 0:a554658735bf 169
mbed_official 0:a554658735bf 170 int USBHostMSD::inquiry(uint8_t lun, uint8_t page_code) {
samux 4:b320d68e98e7 171 USB_DBG("Inquiry");
mbed_official 0:a554658735bf 172 uint8_t evpd = (page_code == 0) ? 0 : 1;
mbed_official 13:b58a2204422f 173 uint8_t cmd[6] = {0x12, uint8_t((lun << 5) | evpd), page_code, 0, 36, 0};
embeddedartists 27:aa2fd412f1d3 174 uint8_t* result = host->getSafeMem(36);
mbed_official 0:a554658735bf 175 int status = SCSITransfer(cmd, 6, DEVICE_TO_HOST, result, 36);
mbed_official 0:a554658735bf 176 if (status == 0) {
samux 4:b320d68e98e7 177 char vid_pid[17];
mbed_official 0:a554658735bf 178 memcpy(vid_pid, &result[8], 8);
mbed_official 0:a554658735bf 179 vid_pid[8] = 0;
mbed_official 0:a554658735bf 180 USB_INFO("MSD [dev: %p] - Vendor ID: %s", dev, vid_pid);
mbed_official 0:a554658735bf 181
samux 4:b320d68e98e7 182 memcpy(vid_pid, &result[16], 16);
samux 4:b320d68e98e7 183 vid_pid[16] = 0;
samux 4:b320d68e98e7 184 USB_INFO("MSD [dev: %p] - Product ID: %s", dev, vid_pid);
mbed_official 0:a554658735bf 185
mbed_official 0:a554658735bf 186 memcpy(vid_pid, &result[32], 4);
mbed_official 0:a554658735bf 187 vid_pid[4] = 0;
mbed_official 0:a554658735bf 188 USB_INFO("MSD [dev: %p] - Product rev: %s", dev, vid_pid);
mbed_official 0:a554658735bf 189 }
embeddedartists 27:aa2fd412f1d3 190 host->returnSafeMem(result);
mbed_official 0:a554658735bf 191 return status;
mbed_official 0:a554658735bf 192 }
mbed_official 0:a554658735bf 193
mbed_official 0:a554658735bf 194 int USBHostMSD::checkResult(uint8_t res, USBEndpoint * ep) {
mbed_official 0:a554658735bf 195 // if ep stalled: send clear feature
mbed_official 0:a554658735bf 196 if (res == USB_TYPE_STALL_ERROR) {
mbed_official 0:a554658735bf 197 res = host->controlWrite( dev,
mbed_official 0:a554658735bf 198 USB_RECIPIENT_ENDPOINT | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_STANDARD,
mbed_official 0:a554658735bf 199 CLEAR_FEATURE,
samux 4:b320d68e98e7 200 0, ep->getAddress(), NULL, 0);
mbed_official 0:a554658735bf 201 // set state to IDLE if clear feature successful
mbed_official 0:a554658735bf 202 if (res == USB_TYPE_OK) {
mbed_official 0:a554658735bf 203 ep->setState(USB_TYPE_IDLE);
mbed_official 0:a554658735bf 204 }
mbed_official 0:a554658735bf 205 }
mbed_official 0:a554658735bf 206
mbed_official 0:a554658735bf 207 if (res != USB_TYPE_OK)
mbed_official 0:a554658735bf 208 return -1;
mbed_official 0:a554658735bf 209
mbed_official 0:a554658735bf 210 return 0;
mbed_official 0:a554658735bf 211 }
mbed_official 0:a554658735bf 212
mbed_official 0:a554658735bf 213
mbed_official 0:a554658735bf 214 int USBHostMSD::SCSITransfer(uint8_t * cmd, uint8_t cmd_len, int flags, uint8_t * data, uint32_t transfer_len) {
mbed_official 0:a554658735bf 215
mbed_official 0:a554658735bf 216 int res = 0;
mbed_official 0:a554658735bf 217
embeddedartists 27:aa2fd412f1d3 218 cbw->Signature = CBW_SIGNATURE;
embeddedartists 27:aa2fd412f1d3 219 cbw->Tag = 0;
embeddedartists 27:aa2fd412f1d3 220 cbw->DataLength = transfer_len;
embeddedartists 27:aa2fd412f1d3 221 cbw->Flags = flags;
embeddedartists 27:aa2fd412f1d3 222 cbw->LUN = 0;
embeddedartists 27:aa2fd412f1d3 223 cbw->CBLength = cmd_len;
embeddedartists 27:aa2fd412f1d3 224 memset(cbw->CB,0,sizeof(cbw->CB));
mbed_official 0:a554658735bf 225 if (cmd) {
embeddedartists 27:aa2fd412f1d3 226 memcpy(cbw->CB,cmd,cmd_len);
mbed_official 0:a554658735bf 227 }
mbed_official 0:a554658735bf 228
mbed_official 0:a554658735bf 229 // send the cbw
samux 4:b320d68e98e7 230 USB_DBG("Send CBW");
embeddedartists 27:aa2fd412f1d3 231 res = host->bulkWrite(dev, bulk_out,(uint8_t *)cbw, 31);
mbed_official 0:a554658735bf 232 if (checkResult(res, bulk_out))
mbed_official 0:a554658735bf 233 return -1;
mbed_official 0:a554658735bf 234
mbed_official 0:a554658735bf 235 // data stage if needed
mbed_official 0:a554658735bf 236 if (data) {
samux 4:b320d68e98e7 237 USB_DBG("data stage");
mbed_official 0:a554658735bf 238 if (flags == HOST_TO_DEVICE) {
mbed_official 24:868cbfe611a7 239
mbed_official 0:a554658735bf 240 res = host->bulkWrite(dev, bulk_out, data, transfer_len);
mbed_official 0:a554658735bf 241 if (checkResult(res, bulk_out))
mbed_official 0:a554658735bf 242 return -1;
mbed_official 0:a554658735bf 243
mbed_official 0:a554658735bf 244 } else if (flags == DEVICE_TO_HOST) {
mbed_official 0:a554658735bf 245
mbed_official 0:a554658735bf 246 res = host->bulkRead(dev, bulk_in, data, transfer_len);
mbed_official 0:a554658735bf 247 if (checkResult(res, bulk_in))
mbed_official 0:a554658735bf 248 return -1;
mbed_official 0:a554658735bf 249 }
mbed_official 0:a554658735bf 250 }
mbed_official 0:a554658735bf 251
mbed_official 0:a554658735bf 252 // status stage
embeddedartists 27:aa2fd412f1d3 253 csw->Signature = 0;
samux 4:b320d68e98e7 254 USB_DBG("Read CSW");
embeddedartists 27:aa2fd412f1d3 255 res = host->bulkRead(dev, bulk_in,(uint8_t *)csw, 13);
mbed_official 0:a554658735bf 256 if (checkResult(res, bulk_in))
mbed_official 0:a554658735bf 257 return -1;
mbed_official 0:a554658735bf 258
embeddedartists 27:aa2fd412f1d3 259 if (csw->Signature != CSW_SIGNATURE) {
mbed_official 0:a554658735bf 260 return -1;
mbed_official 0:a554658735bf 261 }
mbed_official 24:868cbfe611a7 262
embeddedartists 27:aa2fd412f1d3 263 USB_DBG("recv csw: status: %d", csw->Status);
mbed_official 0:a554658735bf 264
mbed_official 0:a554658735bf 265 // ModeSense?
embeddedartists 27:aa2fd412f1d3 266 if ((csw->Status == 1) && (cmd[0] != 0x03)) {
samux 4:b320d68e98e7 267 USB_DBG("request mode sense");
mbed_official 0:a554658735bf 268 return SCSIRequestSense();
samux 4:b320d68e98e7 269 }
mbed_official 24:868cbfe611a7 270
samux 4:b320d68e98e7 271 // perform reset recovery
embeddedartists 27:aa2fd412f1d3 272 if ((csw->Status == 2) && (cmd[0] != 0x03)) {
mbed_official 24:868cbfe611a7 273
samux 4:b320d68e98e7 274 // send Bulk-Only Mass Storage Reset request
samux 4:b320d68e98e7 275 res = host->controlWrite( dev,
samux 4:b320d68e98e7 276 USB_RECIPIENT_INTERFACE | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS,
samux 4:b320d68e98e7 277 BO_MASS_STORAGE_RESET,
samux 4:b320d68e98e7 278 0, msd_intf, NULL, 0);
mbed_official 24:868cbfe611a7 279
samux 4:b320d68e98e7 280 // unstall both endpoints
samux 4:b320d68e98e7 281 res = host->controlWrite( dev,
samux 4:b320d68e98e7 282 USB_RECIPIENT_ENDPOINT | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_STANDARD,
samux 4:b320d68e98e7 283 CLEAR_FEATURE,
samux 4:b320d68e98e7 284 0, bulk_in->getAddress(), NULL, 0);
mbed_official 24:868cbfe611a7 285
samux 4:b320d68e98e7 286 res = host->controlWrite( dev,
samux 4:b320d68e98e7 287 USB_RECIPIENT_ENDPOINT | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_STANDARD,
samux 4:b320d68e98e7 288 CLEAR_FEATURE,
samux 4:b320d68e98e7 289 0, bulk_out->getAddress(), NULL, 0);
mbed_official 24:868cbfe611a7 290
samux 4:b320d68e98e7 291 }
mbed_official 0:a554658735bf 292
embeddedartists 27:aa2fd412f1d3 293 return csw->Status;
mbed_official 0:a554658735bf 294 }
mbed_official 0:a554658735bf 295
mbed_official 0:a554658735bf 296
mbed_official 0:a554658735bf 297 int USBHostMSD::dataTransfer(uint8_t * buf, uint32_t block, uint8_t nbBlock, int direction) {
mbed_official 0:a554658735bf 298 uint8_t cmd[10];
mbed_official 0:a554658735bf 299 memset(cmd,0,10);
mbed_official 0:a554658735bf 300 cmd[0] = (direction == DEVICE_TO_HOST) ? 0x28 : 0x2A;
mbed_official 0:a554658735bf 301
mbed_official 0:a554658735bf 302 cmd[2] = (block >> 24) & 0xff;
mbed_official 0:a554658735bf 303 cmd[3] = (block >> 16) & 0xff;
mbed_official 0:a554658735bf 304 cmd[4] = (block >> 8) & 0xff;
mbed_official 0:a554658735bf 305 cmd[5] = block & 0xff;
mbed_official 0:a554658735bf 306
mbed_official 0:a554658735bf 307 cmd[7] = (nbBlock >> 8) & 0xff;
mbed_official 0:a554658735bf 308 cmd[8] = nbBlock & 0xff;
mbed_official 0:a554658735bf 309
mbed_official 0:a554658735bf 310 return SCSITransfer(cmd, 10, direction, buf, blockSize*nbBlock);
mbed_official 0:a554658735bf 311 }
mbed_official 0:a554658735bf 312
samux 4:b320d68e98e7 313 int USBHostMSD::getMaxLun() {
embeddedartists 27:aa2fd412f1d3 314 uint8_t res;
embeddedartists 27:aa2fd412f1d3 315 uint8_t* buf = host->getSafeMem(1);
samux 4:b320d68e98e7 316 res = host->controlRead( dev, USB_RECIPIENT_INTERFACE | USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS,
samux 4:b320d68e98e7 317 0xfe, 0, msd_intf, buf, 1);
samux 4:b320d68e98e7 318 USB_DBG("max lun: %d", buf[0]);
embeddedartists 27:aa2fd412f1d3 319 host->returnSafeMem(buf);
samux 4:b320d68e98e7 320 return res;
samux 4:b320d68e98e7 321 }
mbed_official 0:a554658735bf 322
mbed_official 0:a554658735bf 323 int USBHostMSD::disk_initialize() {
mbed_official 0:a554658735bf 324 USB_DBG("FILESYSTEM: init");
embeddedartists 32:f2d129436056 325 uint16_t i, timeout = 10;
embeddedartists 29:dc8179214fd7 326
embeddedartists 29:dc8179214fd7 327 if (!connected()) {
embeddedartists 29:dc8179214fd7 328 // not connected
embeddedartists 29:dc8179214fd7 329 disk_init = 0;
embeddedartists 29:dc8179214fd7 330 return STA_NODISK | STA_NOINIT;
embeddedartists 29:dc8179214fd7 331 }
mbed_official 24:868cbfe611a7 332
embeddedartists 29:dc8179214fd7 333 if (disk_init) {
embeddedartists 29:dc8179214fd7 334 // already initialized
embeddedartists 29:dc8179214fd7 335 return 0;
embeddedartists 29:dc8179214fd7 336 }
embeddedartists 29:dc8179214fd7 337
samux 4:b320d68e98e7 338 getMaxLun();
mbed_official 24:868cbfe611a7 339
mbed_official 0:a554658735bf 340 for (i = 0; i < timeout; i++) {
embeddedartists 32:f2d129436056 341 ThisThread::sleep_for(100);
mbed_official 0:a554658735bf 342 if (!testUnitReady())
mbed_official 0:a554658735bf 343 break;
mbed_official 0:a554658735bf 344 }
mbed_official 24:868cbfe611a7 345
mbed_official 0:a554658735bf 346 if (i == timeout) {
mbed_official 0:a554658735bf 347 disk_init = false;
mbed_official 0:a554658735bf 348 return -1;
mbed_official 0:a554658735bf 349 }
mbed_official 24:868cbfe611a7 350
mbed_official 0:a554658735bf 351 inquiry(0, 0);
mbed_official 0:a554658735bf 352 disk_init = 1;
mbed_official 0:a554658735bf 353 return readCapacity();
mbed_official 0:a554658735bf 354 }
mbed_official 0:a554658735bf 355
mbed_official 26:607951c26872 356 int USBHostMSD::disk_write(const uint8_t* buffer, uint64_t block_number, uint8_t count) {
mbed_official 26:607951c26872 357 USB_DBG("FILESYSTEM: write block: %lld, count: %d", block_number, count);
mbed_official 0:a554658735bf 358 if (!disk_init) {
mbed_official 0:a554658735bf 359 disk_initialize();
mbed_official 0:a554658735bf 360 }
mbed_official 0:a554658735bf 361 if (!disk_init)
mbed_official 0:a554658735bf 362 return -1;
embeddedartists 27:aa2fd412f1d3 363 uint8_t* safe = host->getSafeMem(512);
mbed_official 26:607951c26872 364 for (uint64_t b = block_number; b < block_number + count; b++) {
embeddedartists 27:aa2fd412f1d3 365 memcpy(safe, buffer, 512);
embeddedartists 27:aa2fd412f1d3 366 if (dataTransfer((uint8_t*)safe, b, 1, HOST_TO_DEVICE)) {
embeddedartists 27:aa2fd412f1d3 367 host->returnSafeMem(safe);
mbed_official 26:607951c26872 368 return -1;
embeddedartists 27:aa2fd412f1d3 369 }
mbed_official 26:607951c26872 370 buffer += 512;
mbed_official 26:607951c26872 371 }
embeddedartists 27:aa2fd412f1d3 372 host->returnSafeMem(safe);
mbed_official 26:607951c26872 373 return 0;
mbed_official 0:a554658735bf 374 }
mbed_official 0:a554658735bf 375
mbed_official 26:607951c26872 376 int USBHostMSD::disk_read(uint8_t* buffer, uint64_t block_number, uint8_t count) {
mbed_official 26:607951c26872 377 USB_DBG("FILESYSTEM: read block: %lld, count: %d", block_number, count);
mbed_official 0:a554658735bf 378 if (!disk_init) {
mbed_official 0:a554658735bf 379 disk_initialize();
mbed_official 0:a554658735bf 380 }
mbed_official 0:a554658735bf 381 if (!disk_init)
mbed_official 0:a554658735bf 382 return -1;
embeddedartists 27:aa2fd412f1d3 383 uint8_t* safe = host->getSafeMem(512);
mbed_official 26:607951c26872 384 for (uint64_t b = block_number; b < block_number + count; b++) {
embeddedartists 27:aa2fd412f1d3 385 if (dataTransfer((uint8_t*)safe, b, 1, DEVICE_TO_HOST)) {
embeddedartists 27:aa2fd412f1d3 386 host->returnSafeMem(safe);
mbed_official 26:607951c26872 387 return -1;
embeddedartists 27:aa2fd412f1d3 388 }
embeddedartists 27:aa2fd412f1d3 389 memcpy(buffer, safe, 512);
mbed_official 26:607951c26872 390 buffer += 512;
mbed_official 26:607951c26872 391 }
embeddedartists 27:aa2fd412f1d3 392 host->returnSafeMem(safe);
mbed_official 26:607951c26872 393 return 0;
mbed_official 0:a554658735bf 394 }
mbed_official 0:a554658735bf 395
mbed_official 0:a554658735bf 396 uint64_t USBHostMSD::disk_sectors() {
mbed_official 0:a554658735bf 397 USB_DBG("FILESYSTEM: sectors");
mbed_official 0:a554658735bf 398 if (!disk_init) {
mbed_official 0:a554658735bf 399 disk_initialize();
mbed_official 0:a554658735bf 400 }
mbed_official 0:a554658735bf 401 if (!disk_init)
mbed_official 0:a554658735bf 402 return 0;
mbed_official 0:a554658735bf 403 return blockCount;
mbed_official 0:a554658735bf 404 }
mbed_official 0:a554658735bf 405
mbed_official 0:a554658735bf 406 #endif