keyboard->mbed->PC (mbed->SDcard)
Fork of USBHost by
Revision 41:562eb0913204, committed 2017-12-13
- Comitter:
- USER10
- Date:
- Wed Dec 13 05:56:55 2017 +0000
- Parent:
- 9:7671b6a8c363
- Commit message:
- keyboard->mbed->SDcard; SDcard[number:ASCIIcode:Input character:elapsed time]; mbed -> serialport(tx1,rx1);
Changed in this revision
diff -r 7671b6a8c363 -r 562eb0913204 FATFileSystem.lib --- a/FATFileSystem.lib Thu Mar 14 14:20:03 2013 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -http://mbed.org/users/mbed_official/code/FATFileSystem/#b6669c987c8e
diff -r 7671b6a8c363 -r 562eb0913204 USBHostMSD/USBHostMSD.cpp --- a/USBHostMSD/USBHostMSD.cpp Thu Mar 14 14:20:03 2013 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,356 +0,0 @@ -/* mbed USBHost Library - * Copyright (c) 2006-2013 ARM Limited - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include "USBHostMSD.h" - -#if USBHOST_MSD - -#include "dbg.h" - -#define CBW_SIGNATURE 0x43425355 -#define CSW_SIGNATURE 0x53425355 - -#define DEVICE_TO_HOST 0x80 -#define HOST_TO_DEVICE 0x00 - -#define GET_MAX_LUN (0xFE) -#define BO_MASS_STORAGE_RESET (0xFF) - -USBHostMSD::USBHostMSD(const char * rootdir) : FATFileSystem(rootdir) -{ - host = USBHost::getHostInst(); - init(); -} - -void USBHostMSD::init() { - dev_connected = false; - dev = NULL; - bulk_in = NULL; - bulk_out = NULL; - dev_connected = false; - blockSize = 0; - blockCount = 0; - msd_intf = -1; - msd_device_found = false; - disk_init = false; - dev_connected = false; - nb_ep = 0; -} - - -bool USBHostMSD::connected() -{ - return dev_connected; -} - -bool USBHostMSD::connect() -{ - - if (dev_connected) { - return true; - } - - for (uint8_t i = 0; i < MAX_DEVICE_CONNECTED; i++) { - if ((dev = host->getDevice(i)) != NULL) { - - USB_DBG("Trying to connect MSD device\r\n"); - - if(host->enumerate(dev, this)) - break; - - if (msd_device_found) { - bulk_in = dev->getEndpoint(msd_intf, BULK_ENDPOINT, IN); - bulk_out = dev->getEndpoint(msd_intf, BULK_ENDPOINT, OUT); - - if (!bulk_in || !bulk_out) - continue; - - USB_INFO("New MSD device: VID:%04x PID:%04x [dev: %p - intf: %d]", dev->getVid(), dev->getPid(), dev, msd_intf); - dev->setName("MSD", msd_intf); - host->registerDriver(dev, msd_intf, this, &USBHostMSD::init); - - dev_connected = true; - return true; - } - } //if() - } //for() - init(); - return false; -} - -/*virtual*/ void USBHostMSD::setVidPid(uint16_t vid, uint16_t pid) -{ - // we don't check VID/PID for MSD driver -} - -/*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 -{ - if ((msd_intf == -1) && - (intf_class == MSD_CLASS) && - (intf_subclass == 0x06) && - (intf_protocol == 0x50)) { - msd_intf = intf_nb; - return true; - } - return false; -} - -/*virtual*/ bool USBHostMSD::useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir) //Must return true if the endpoint will be used -{ - if (intf_nb == msd_intf) { - if (type == BULK_ENDPOINT) { - nb_ep++; - if (nb_ep == 2) - msd_device_found = true; - return true; - } - } - return false; -} - - -int USBHostMSD::testUnitReady() { - USB_DBG("Test unit ready"); - return SCSITransfer(NULL, 6, DEVICE_TO_HOST, 0, 0); -} - - -int USBHostMSD::readCapacity() { - USB_DBG("Read capacity"); - uint8_t cmd[10] = {0x25,0,0,0,0,0,0,0,0,0}; - uint8_t result[8]; - int status = SCSITransfer(cmd, 10, DEVICE_TO_HOST, result, 8); - if (status == 0) { - blockCount = (result[0] << 24) | (result[1] << 16) | (result[2] << 8) | result[3]; - blockSize = (result[4] << 24) | (result[5] << 16) | (result[6] << 8) | result[7]; - USB_INFO("MSD [dev: %p] - blockCount: %lld, blockSize: %d, Capacity: %lld\r\n", dev, blockCount, blockSize, blockCount*blockSize); - } - return status; -} - - -int USBHostMSD::SCSIRequestSense() { - USB_DBG("Request sense"); - uint8_t cmd[6] = {0x03,0,0,0,18,0}; - uint8_t result[18]; - int status = SCSITransfer(cmd, 6, DEVICE_TO_HOST, result, 18); - return status; -} - - -int USBHostMSD::inquiry(uint8_t lun, uint8_t page_code) { - USB_DBG("Inquiry"); - uint8_t evpd = (page_code == 0) ? 0 : 1; - uint8_t cmd[6] = {0x12, (lun << 5) | evpd, page_code, 0, 36, 0}; - uint8_t result[36]; - int status = SCSITransfer(cmd, 6, DEVICE_TO_HOST, result, 36); - if (status == 0) { - char vid_pid[17]; - memcpy(vid_pid, &result[8], 8); - vid_pid[8] = 0; - USB_INFO("MSD [dev: %p] - Vendor ID: %s", dev, vid_pid); - - memcpy(vid_pid, &result[16], 16); - vid_pid[16] = 0; - USB_INFO("MSD [dev: %p] - Product ID: %s", dev, vid_pid); - - memcpy(vid_pid, &result[32], 4); - vid_pid[4] = 0; - USB_INFO("MSD [dev: %p] - Product rev: %s", dev, vid_pid); - } - return status; -} - -int USBHostMSD::checkResult(uint8_t res, USBEndpoint * ep) { - // if ep stalled: send clear feature - if (res == USB_TYPE_STALL_ERROR) { - res = host->controlWrite( dev, - USB_RECIPIENT_ENDPOINT | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_STANDARD, - CLEAR_FEATURE, - 0, ep->getAddress(), NULL, 0); - // set state to IDLE if clear feature successful - if (res == USB_TYPE_OK) { - ep->setState(USB_TYPE_IDLE); - } - } - - if (res != USB_TYPE_OK) - return -1; - - return 0; -} - - -int USBHostMSD::SCSITransfer(uint8_t * cmd, uint8_t cmd_len, int flags, uint8_t * data, uint32_t transfer_len) { - - int res = 0; - - cbw.Signature = CBW_SIGNATURE; - cbw.Tag = 0; - cbw.DataLength = transfer_len; - cbw.Flags = flags; - cbw.LUN = 0; - cbw.CBLength = cmd_len; - memset(cbw.CB,0,sizeof(cbw.CB)); - if (cmd) { - memcpy(cbw.CB,cmd,cmd_len); - } - - // send the cbw - USB_DBG("Send CBW"); - res = host->bulkWrite(dev, bulk_out,(uint8_t *)&cbw, 31); - if (checkResult(res, bulk_out)) - return -1; - - // data stage if needed - if (data) { - USB_DBG("data stage"); - if (flags == HOST_TO_DEVICE) { - - res = host->bulkWrite(dev, bulk_out, data, transfer_len); - if (checkResult(res, bulk_out)) - return -1; - - } else if (flags == DEVICE_TO_HOST) { - - res = host->bulkRead(dev, bulk_in, data, transfer_len); - if (checkResult(res, bulk_in)) - return -1; - } - } - - // status stage - csw.Signature = 0; - USB_DBG("Read CSW"); - res = host->bulkRead(dev, bulk_in,(uint8_t *)&csw, 13); - if (checkResult(res, bulk_in)) - return -1; - - if (csw.Signature != CSW_SIGNATURE) { - return -1; - } - - USB_DBG("recv csw: status: %d", csw.Status); - - // ModeSense? - if ((csw.Status == 1) && (cmd[0] != 0x03)) { - USB_DBG("request mode sense"); - return SCSIRequestSense(); - } - - // perform reset recovery - if ((csw.Status == 2) && (cmd[0] != 0x03)) { - - // send Bulk-Only Mass Storage Reset request - res = host->controlWrite( dev, - USB_RECIPIENT_INTERFACE | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_CLASS, - BO_MASS_STORAGE_RESET, - 0, msd_intf, NULL, 0); - - // unstall both endpoints - res = host->controlWrite( dev, - USB_RECIPIENT_ENDPOINT | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_STANDARD, - CLEAR_FEATURE, - 0, bulk_in->getAddress(), NULL, 0); - - res = host->controlWrite( dev, - USB_RECIPIENT_ENDPOINT | USB_HOST_TO_DEVICE | USB_REQUEST_TYPE_STANDARD, - CLEAR_FEATURE, - 0, bulk_out->getAddress(), NULL, 0); - - } - - return csw.Status; -} - - -int USBHostMSD::dataTransfer(uint8_t * buf, uint32_t block, uint8_t nbBlock, int direction) { - uint8_t cmd[10]; - memset(cmd,0,10); - cmd[0] = (direction == DEVICE_TO_HOST) ? 0x28 : 0x2A; - - cmd[2] = (block >> 24) & 0xff; - cmd[3] = (block >> 16) & 0xff; - cmd[4] = (block >> 8) & 0xff; - cmd[5] = block & 0xff; - - cmd[7] = (nbBlock >> 8) & 0xff; - cmd[8] = nbBlock & 0xff; - - return SCSITransfer(cmd, 10, direction, buf, blockSize*nbBlock); -} - -int USBHostMSD::getMaxLun() { - uint8_t buf[1], res; - res = host->controlRead( dev, USB_RECIPIENT_INTERFACE | USB_DEVICE_TO_HOST | USB_REQUEST_TYPE_CLASS, - 0xfe, 0, msd_intf, buf, 1); - USB_DBG("max lun: %d", buf[0]); - return res; -} - -int USBHostMSD::disk_initialize() { - USB_DBG("FILESYSTEM: init"); - U16 i, timeout = 10; - - getMaxLun(); - - for (i = 0; i < timeout; i++) { - Thread::wait(100); - if (!testUnitReady()) - break; - } - - if (i == timeout) { - disk_init = false; - return -1; - } - - inquiry(0, 0); - disk_init = 1; - return readCapacity(); -} - -int USBHostMSD::disk_write(const uint8_t *buffer, uint64_t block_number) { - USB_DBG("FILESYSTEM: write block: %lld", block_number); - if (!disk_init) { - disk_initialize(); - } - if (!disk_init) - return -1; - return dataTransfer((uint8_t *)buffer, block_number, 1, HOST_TO_DEVICE); -} - -int USBHostMSD::disk_read(uint8_t * buffer, uint64_t block_number) { - USB_DBG("FILESYSTEM: read block %lld", block_number); - if (!disk_init) { - disk_initialize(); - } - if (!disk_init) - return -1; - return dataTransfer((uint8_t *)buffer, block_number, 1, DEVICE_TO_HOST); -} - -uint64_t USBHostMSD::disk_sectors() { - USB_DBG("FILESYSTEM: sectors"); - if (!disk_init) { - disk_initialize(); - } - if (!disk_init) - return 0; - return blockCount; -} - -#endif
diff -r 7671b6a8c363 -r 562eb0913204 USBHostMSD/USBHostMSD.h --- a/USBHostMSD/USBHostMSD.h Thu Mar 14 14:20:03 2013 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,119 +0,0 @@ -/* mbed USBHost Library - * Copyright (c) 2006-2013 ARM Limited - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#ifndef USBHOSTMSD_H -#define USBHOSTMSD_H - -#include "USBHostConf.h" - -#if USBHOST_MSD - -#include "USBHost.h" -#include "FATFileSystem.h" - -/** - * A class to communicate a USB flash disk - */ -class USBHostMSD : public IUSBEnumerator, public FATFileSystem { -public: - /** - * Constructor - * - * @param rootdir mount name - */ - USBHostMSD(const char * rootdir); - - /** - * Check if a MSD device is connected - * - * @return true if a MSD device is connected - */ - bool connected(); - - /** - * Try to connect to a MSD device - * - * @return true if connection was successful - */ - bool connect(); - -protected: - //From IUSBEnumerator - virtual void setVidPid(uint16_t vid, uint16_t pid); - virtual bool 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 - virtual bool useEndpoint(uint8_t intf_nb, ENDPOINT_TYPE type, ENDPOINT_DIRECTION dir); //Must return true if the endpoint will be used - - // From FATFileSystem - virtual int disk_initialize(); - virtual int disk_status() {return 0;}; - virtual int disk_read(uint8_t * buffer, uint64_t sector); - virtual int disk_write(const uint8_t * buffer, uint64_t sector); - virtual int disk_sync() {return 0;}; - virtual uint64_t disk_sectors(); - -private: - USBHost * host; - USBDeviceConnected * dev; - bool dev_connected; - USBEndpoint * bulk_in; - USBEndpoint * bulk_out; - uint8_t nb_ep; - - // Bulk-only CBW - typedef __packed struct { - uint32_t Signature; - uint32_t Tag; - uint32_t DataLength; - uint8_t Flags; - uint8_t LUN; - uint8_t CBLength; - uint8_t CB[16]; - } CBW; - - // Bulk-only CSW - typedef __packed struct { - uint32_t Signature; - uint32_t Tag; - uint32_t DataResidue; - uint8_t Status; - } CSW; - - CBW cbw; - CSW csw; - - int SCSITransfer(uint8_t * cmd, uint8_t cmd_len, int flags, uint8_t * data, uint32_t transfer_len); - int testUnitReady(); - int readCapacity(); - int inquiry(uint8_t lun, uint8_t page_code); - int SCSIRequestSense(); - int dataTransfer(uint8_t * buf, uint32_t block, uint8_t nbBlock, int direction); - int checkResult(uint8_t res, USBEndpoint * ep); - int getMaxLun(); - - int blockSize; - uint64_t blockCount; - - int msd_intf; - bool msd_device_found; - bool disk_init; - - void init(); - -}; - -#endif - -#endif