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authorYuval Adam <yuv.adm@gmail.com>2014-03-16 14:41:11 +0200
committerYuval Adam <yuv.adm@gmail.com>2014-03-16 14:41:11 +0200
commit990090a4cc9070837d31e66b58d40f0c3d038741 (patch)
treecf1b905082c364e9b223e0c5058566103138dae5 /usblib/device/usbdmsc.h
parent7f4da522479c0f00126219f0c23b804c3a93d7a6 (diff)
Add usblib and utils
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+//*****************************************************************************
+//
+// usbdmsc.h - USB mass storage device class driver.
+//
+// Copyright (c) 2009-2014 Texas Instruments Incorporated. All rights reserved.
+// Software License Agreement
+//
+// Texas Instruments (TI) is supplying this software for use solely and
+// exclusively on TI's microcontroller products. The software is owned by
+// TI and/or its suppliers, and is protected under applicable copyright
+// laws. You may not combine this software with "viral" open-source
+// software in order to form a larger program.
+//
+// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
+// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
+// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
+// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
+// DAMAGES, FOR ANY REASON WHATSOEVER.
+//
+// This is part of revision 2.1.0.12573 of the Tiva USB Library.
+//
+//*****************************************************************************
+
+#ifndef __USBDMSC_H__
+#define __USBDMSC_H__
+
+//*****************************************************************************
+//
+// If building with a C++ compiler, make all of the definitions in this header
+// have a C binding.
+//
+//*****************************************************************************
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+//*****************************************************************************
+//
+//! \addtogroup msc_device_class_api
+//! @{
+//
+//*****************************************************************************
+
+//*****************************************************************************
+//
+//! Media Access functions.
+//
+//*****************************************************************************
+typedef struct
+{
+ //
+ //! This function is used to initialize and open the physical drive number
+ //! associated with the parameter \e ui32Drive. The function returns
+ //! zero if the drive could not be opened for some reason. In the case of
+ //! removable device like an SD card this function must return zero if
+ //! the SD card is not present.
+ //! The function returns a pointer to data that should be passed to other
+ //! APIs or returns 0 if no drive was found.
+ //
+ void *(*pfnOpen)(uint32_t ui32Drive);
+
+ //*************************************************************************
+ //
+ //! This function closes the drive number in use by the mass storage class
+ //! device. The \e pvDrive is the pointer that was returned from a call to
+ //! \e pfnOpen. This function is used to close the physical drive
+ //! number associated with the parameter \e pvDrive. This function
+ //! returns 0 if the drive was closed successfully and any other value
+ //! indicates a failure.
+ //
+ //*************************************************************************
+ void (*pfnClose)(void *pvDrive);
+
+ //*************************************************************************
+ //
+ //! This function reads a block of data from a device opened by the
+ //! \e pfnOpen call. The \e pvDrive parameter is the pointer that was
+ //! returned from the original call to \e pfnOpen. The \e pui8Data
+ //! parameter is the buffer that data will be written into. The data area
+ //! pointed to by \e pui8Data must be at least \e ui32NumBlocks * Block
+ //! Size bytes to prevent overwriting data. The \e ui32Sector is the block
+ //! address to read and \e ui32NumBlocks is the number of blocks to read.
+ //! This function returns the number of bytes that were read from the
+ //! and placed into the \e pui8Data buffer..
+ //
+ //*************************************************************************
+ uint32_t (*pfnBlockRead)(void *pvDrive, uint8_t *pui8Data,
+ uint32_t ui32Sector, uint32_t ui32NumBlocks);
+
+ //*************************************************************************
+ //
+ //! This function is use to write blocks to a physical device from the
+ //! buffer pointed to by the \e pui8Data buffer. The \e pvDrive parameter
+ //! is the pointer that was returned from the original call to \e pfnOpen.
+ //! The \e pui8Data is the pointer to the data to write to the storage
+ //! device and \e ui32NumBlocks is the number of blocks to write. The
+ //! \e ui32Sector parameter is the sector number used to write the block.
+ //! If the number of blocks is greater than one then the block address
+ //! increments and writes to the next block until
+ //! \e ui32NumBlocks * Block Size bytes are written. This function returns
+ //! the number of bytes that were written to the device.
+ //
+ //*************************************************************************
+ uint32_t (*pfnBlockWrite)(void *pvDrive, uint8_t *pui8Data,
+ uint32_t ui32Sector, uint32_t ui32NumBlocks);
+
+ //*************************************************************************
+ //
+ //! This function returns the total number of blocks on a physical device
+ //! based on the \e pvDrive parameter. The \e pvDrive parameter
+ //! is the pointer that was returned from the original call to \e pfnOpen.
+ //
+ //*************************************************************************
+ uint32_t (*pfnNumBlocks)(void *pvDrive);
+
+ //*************************************************************************
+ //
+ //! This function returns the block size for a physical device based on the
+ //! \e pvDrive parameter. The \e pvDrive parameter is the pointer
+ //! that was returned from the original call to \e pfnOpen.
+ //
+ //*************************************************************************
+ uint32_t (*pfnBlockSize)(void *pvDrive);
+
+}
+tMSCDMedia;
+
+//*****************************************************************************
+//
+// These defines control the default sizes of USB transfers for data and
+// commands.
+//
+//*****************************************************************************
+#define DEVICE_BLOCK_SIZE 512
+
+//*****************************************************************************
+//
+// USBDMSCMediaChange() tUSBDMSCMediaStatus values.
+//
+//*****************************************************************************
+typedef enum
+{
+ eUSBDMSCMediaPresent,
+ eUSBDMSCMediaNotPresent,
+ eUSBDMSCMediaStopped,
+ eUSBDMSCMediaUnknown
+}
+tUSBDMSCMediaStatus;
+
+//*****************************************************************************
+//
+// PRIVATE
+//
+// This structure defines the private instance data and state variables for the
+// mass storage class. The memory for this structure is in the the
+// sPrivateData field in the tUSBDMSCDevice structure passed on
+// USBDMSCInit() and should not be modified by any code outside of the mass
+// storage device code.
+//
+//*****************************************************************************
+typedef struct
+{
+ //
+ // Base address for the USB controller.
+ //
+ uint32_t ui32USBBase;
+
+ //
+ // The device info to interact with the lower level DCD code.
+ //
+ tDeviceInfo sDevInfo;
+
+ //
+ // These three values are used to return the current sense data for an
+ // instance of the mass storage class.
+ //
+ uint8_t ui8ErrorCode;
+ uint8_t ui8SenseKey;
+ uint16_t ui16AddSenseCode;
+
+ //
+ // The pointer to the instance returned from the Open call to the media.
+ //
+ void *pvMedia;
+
+ //
+ // The connection status of the device.
+ //
+ volatile bool bConnected;
+
+ //
+ // Holds the flag settings for this instance.
+ //
+ uint32_t ui32Flags;
+
+ //
+ // Holds the current media status.
+ //
+ tUSBDMSCMediaStatus iMediaStatus;
+
+ //
+ // MSC block buffer.
+ //
+ uint32_t pui32Buffer[0x1000>>2];
+
+ //
+ // Current number of bytes to transfer.
+ //
+ uint32_t ui32BytesToTransfer;
+
+ //
+ // The LBA for the current transfer.
+ //
+ uint32_t ui32CurrentLBA;
+
+ //
+ // The IN endpoint number, this is modified in composite devices.
+ //
+ uint8_t ui8INEndpoint;
+
+ //
+ // The IN DMA channel.
+ //
+ uint8_t ui8INDMA;
+
+ //
+ // The OUT endpoint number, this is modified in composite devices.
+ //
+ uint8_t ui8OUTEndpoint;
+
+ //
+ // The OUT DMA channel.
+ //
+ uint8_t ui8OUTDMA;
+
+ //
+ // The bulk class interface number, this is modified in composite devices.
+ //
+ uint8_t ui8Interface;
+
+ //
+ // Active SCSI state.
+ //
+ uint8_t ui8SCSIState;
+
+ //
+ // A copy of the DMA instance data used with calls to USBLibDMA functions.
+ //
+ tUSBDMAInstance *psDMAInstance;
+}
+tMSCInstance;
+
+//*****************************************************************************
+//
+// This is the size of the g_pui8MSCInterface array in bytes.
+//
+//*****************************************************************************
+#define MSCINTERFACE_SIZE (23)
+
+//*****************************************************************************
+//
+//! The size of the memory that should be allocated to create a configuration
+//! descriptor for a single instance of the USB Audio Device.
+//! This does not include the configuration descriptor which is automatically
+//! ignored by the composite device class.
+//
+//
+//*****************************************************************************
+#define COMPOSITE_DMSC_SIZE (MSCINTERFACE_SIZE)
+
+//*****************************************************************************
+//
+//! The structure used by the application to define operating parameters for
+//! the mass storage device.
+//
+//*****************************************************************************
+typedef struct
+{
+ //
+ //! The vendor ID that this device is to present in the device descriptor.
+ //
+ const uint16_t ui16VID;
+
+ //
+ //! The product ID that this device is to present in the device descriptor.
+ //
+ const uint16_t ui16PID;
+
+ //
+ //! 8 byte vendor string.
+ //
+ const uint8_t pui8Vendor[8];
+
+ //
+ //! 16 byte vendor string.
+ //
+ const uint8_t pui8Product[16];
+
+ //
+ //! 4 byte vendor string.
+ //
+ const uint8_t pui8Version[4];
+
+ //
+ //! The maximum power consumption of the device, expressed in milliamps.
+ //
+ const uint16_t ui16MaxPowermA;
+
+ //
+ //! Indicates whether the device is self or bus-powered and whether or not
+ //! it supports remote wakeup. Valid values are \b USB_CONF_ATTR_SELF_PWR
+ //! or \b USB_CONF_ATTR_BUS_PWR, optionally ORed with
+ //! \b USB_CONF_ATTR_RWAKE.
+ //
+ const uint8_t ui8PwrAttributes;
+
+ //
+ //! A pointer to the string descriptor array for this device. This array
+ //! must contain the following string descriptor pointers in this order.
+ //! Language descriptor, Manufacturer name string (language 1), Product
+ //! name string (language 1), Serial number string (language 1), MSC
+ //! Interface description string (language 1), Configuration description
+ //! string (language 1).
+ //!
+ //! If supporting more than 1 language, the descriptor block (except for
+ //! string descriptor 0) must be repeated for each language defined in the
+ //! language descriptor.
+ //!
+ //
+ const uint8_t * const *ppui8StringDescriptors;
+
+ //
+ //! The number of descriptors provided in the \e ppStringDescriptors
+ //! array. This must be 1 + ((5 + (num HID strings)) * (num languages)).
+ //
+ const uint32_t ui32NumStringDescriptors;
+
+ //
+ //! This structure holds the access functions for the media used by this
+ //! instance of the mass storage class device. All of the functions in
+ //! this structure are required to be filled out with valid functions.
+ //
+ const tMSCDMedia sMediaFunctions;
+
+ //
+ //! This is the callback function for various events that occur during
+ //! mass storage class operation.
+ //
+ const tUSBCallback pfnEventCallback;
+
+ //
+ //! The private instance data for this device. This memory
+ //! must remain accessible for as long as the MSC device is in use and
+ //! must not be modified by any code outside the MSC class driver.
+ //
+ tMSCInstance sPrivateData;
+}
+tUSBDMSCDevice;
+
+//*****************************************************************************
+//
+// MSC-specific device class driver events
+//
+//*****************************************************************************
+
+//*****************************************************************************
+//
+//! This event indicates that the host has completed other operations and is
+//! no longer accessing the device.
+//
+//*****************************************************************************
+#define USBD_MSC_EVENT_IDLE (USBD_MSC_EVENT_BASE + 0)
+
+//*****************************************************************************
+//
+//! This event indicates that the host is reading the storage media.
+//
+//*****************************************************************************
+#define USBD_MSC_EVENT_READING (USBD_MSC_EVENT_BASE + 1)
+
+//*****************************************************************************
+//
+//! This event indicates that the host is writing to the storage media.
+//
+//*****************************************************************************
+#define USBD_MSC_EVENT_WRITING (USBD_MSC_EVENT_BASE + 2)
+
+//*****************************************************************************
+//
+// API Function Prototypes
+//
+//*****************************************************************************
+extern void *USBDMSCInit(uint32_t ui32Index,
+ tUSBDMSCDevice *psMSCDevice);
+extern void *USBDMSCCompositeInit(uint32_t ui32Index,
+ tUSBDMSCDevice *psMSCDevice,
+ tCompositeEntry *psCompEntry);
+extern void USBDMSCTerm(void *pvInstance);
+extern void USBDMSCMediaChange(void *pvInstance,
+ tUSBDMSCMediaStatus eMediaStatus);
+
+//*****************************************************************************
+//
+// Close the Doxygen group.
+//! @}
+//
+//*****************************************************************************
+
+//*****************************************************************************
+//
+// Mark the end of the C bindings section for C++ compilers.
+//
+//*****************************************************************************
+#ifdef __cplusplus
+}
+#endif
+
+#endif