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Diffstat (limited to 'tool/mbed/mbed-sdk/libraries/USBHost/USBHostMSD/USBHostMSD.h')
-rw-r--r-- | tool/mbed/mbed-sdk/libraries/USBHost/USBHostMSD/USBHostMSD.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/tool/mbed/mbed-sdk/libraries/USBHost/USBHostMSD/USBHostMSD.h b/tool/mbed/mbed-sdk/libraries/USBHost/USBHostMSD/USBHostMSD.h new file mode 100644 index 0000000000..10c6025857 --- /dev/null +++ b/tool/mbed/mbed-sdk/libraries/USBHost/USBHostMSD/USBHostMSD.h @@ -0,0 +1,119 @@ +/* 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, uint8_t count); + virtual int disk_write(const uint8_t* buffer, uint64_t sector, uint8_t count); + 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 struct { + uint32_t Signature; + uint32_t Tag; + uint32_t DataLength; + uint8_t Flags; + uint8_t LUN; + uint8_t CBLength; + uint8_t CB[16]; + } PACKED CBW; + + // Bulk-only CSW + typedef struct { + uint32_t Signature; + uint32_t Tag; + uint32_t DataResidue; + uint8_t Status; + } PACKED 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 |