USBMSD SD card Hello World for Mbed platforms
Dependencies: mbed USBMSD_SD USBDevice
Diff: USBDevice/USBMSD/USBMSD.h
- Revision:
- 7:6494da2a5c60
- Parent:
- 6:126c4d980196
- Child:
- 8:534fd41d8cc7
--- a/USBDevice/USBMSD/USBMSD.h Mon Nov 14 10:00:07 2011 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,204 +0,0 @@ -/* USBMSD.h */ -/* USB mass storage device example */ -/* Copyright (c) 2011 ARM Limited. All rights reserved. */ - -/* -* Guide to adapt this class to your storage chip: -* -*/ - -#ifndef USBMSD_H -#define USBMSD_H - -/* These headers are included for child class. */ -#include "USBEndpoints.h" -#include "USBDescriptor.h" -#include "USBDevice_Types.h" - -#include "USBDevice.h" - -#define DEFAULT_CONFIGURATION (1) - - -// MSC Bulk-only Stage -enum Stage { - READ_CBW, // wait a CBW - ERROR, // error - PROCESS_CBW, // process a CBW request - SEND_CSW, // send a CSW - WAIT_CSW, // wait that a CSW has been effectively sent -}; - -// 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; - - -class USBMSD: public USBDevice { -public: - - /** - * Constructor - * - * @param vendor_id Your vendor_id - * @param product_id Your product_id - * @param product_release Your preoduct_release - */ - USBMSD(uint16_t vendor_id = 0x0703, uint16_t product_id = 0x0104, uint16_t product_release = 0x0001); - - /* - * read a block on a storage chip - * - * @param data pointer where will be stored read data - * @param block block number - * @returns 0 if successful - */ - virtual int blockRead(uint8_t * data, uint16_t block){return 1;}; - - /* - * write a block on a storage chip - * - * @param data data to write - * @param block block number - * @returns 0 if successful - */ - virtual int blockWrite(uint8_t * data, uint16_t block){return 1;}; - - /* - * Disk initilization - */ - virtual int diskInit(){return -1;}; - - /* - * Return block size - * - * @returns size of a block - */ - virtual uint16_t blockSize(){return 0;}; - - /* - * Return memory size - * - * @returns memory size - */ - virtual uint32_t memorySize(){return 0;}; - - /* - * Connect the USB MSD device. Establish disk initialization before really connect the device. - * - * @returns - */ - bool connect(); - - -protected: - - - /* - * Get number of logical unit - 1 (here 0) - * - * @returns Pointer containing the number of logical unit - 1 - */ - uint8_t * getMaxLUN(); - - /* - * Get string product descriptor - * - * @returns pointer to the string product descriptor - */ - virtual uint8_t * stringIproductDesc(); - - /* - * Get string interface descriptor - * - * @returns pointer to the string interface descriptor - */ - virtual uint8_t * stringIinterfaceDesc(); - - /* - * Get configuration descriptor - * - * @returns pointer to the configuration descriptor - */ - virtual uint8_t * configurationDesc(); - - /* - * Callback called when a packet is received - */ - virtual bool EP2_OUT_callback(); - - /* - * Callback called when a packet has been sent - */ - virtual bool EP2_IN_callback(); - - /* - * Set configuration of device. Add endpoints - */ - virtual bool USBCallback_setConfiguration(uint8_t configuration); - - /* - * Callback called to process class specific requests - */ - virtual bool USBCallback_request(); - - -private: - //state of the bulk-only state machine - Stage stage; - - // current CBW - CBW cbw; - - // CSW which will be sent - CSW csw; - - // addr where will be read or written data - uint32_t addr; - - // length of a reading or writing - uint32_t length; - - // memory OK (after a memoryVerify) - bool memOK; - - // cache in RAM before writing in memory. Useful also to read a block. - uint8_t * page; - - uint16_t BlockSize; - uint32_t MemorySize; - uint16_t BlockCount; - - void CBWDecode(uint8_t * buf, uint16_t size); - void sendCSW (void); - bool inquiryRequest (void); - bool write (uint8_t * buf, uint16_t size); - bool readFormatCapacity(); - bool readCapacity (void); - bool infoTransfer (void); - void memoryRead (void); - bool modeSense6 (void); - void testUnitReady (void); - bool requestSense (void); - void memoryVerify (uint8_t * buf, uint16_t size); - void memoryWrite (uint8_t * buf, uint16_t size); - void reset(); - void fail(); -}; - -#endif