Firmware2/Marlin/src/HAL/DUE/usb/ctrl_access.h

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/*****************************************************************************
*
* \file
*
* \brief Abstraction layer for memory interfaces.
*
* This module contains the interfaces:
* - MEM <-> USB;
* - MEM <-> RAM;
* - MEM <-> MEM.
*
* This module may be configured and expanded to support the following features:
* - write-protected globals;
* - password-protected data;
* - specific features;
* - etc.
*
* Copyright (c) 2009-2015 Atmel Corporation. All rights reserved.
*
* \asf_license_start
*
* \page License
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The name of Atmel may not be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* 4. This software may only be redistributed and used in connection with an
* Atmel microcontroller product.
*
* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* \asf_license_stop
*
******************************************************************************/
/*
* Support and FAQ: visit <a href="https://www.atmel.com/design-support/">Atmel Support</a>
*/
#ifndef _CTRL_ACCESS_H_
#define _CTRL_ACCESS_H_
#ifdef __cplusplus
extern "C" {
#endif
/**
* \defgroup group_common_services_storage_ctrl_access Memory Control Access
*
* Common abstraction layer for memory interfaces. It provides interfaces between:
* Memory and USB, Memory and RAM, Memory and Memory. Common API for XMEGA and UC3.
*
* \{
*/
#include "compiler.h"
#include "conf_access.h"
#ifndef SECTOR_SIZE
#define SECTOR_SIZE 512
#endif
//! Status returned by CTRL_ACCESS interfaces.
typedef enum
{
CTRL_GOOD = PASS, //!< Success, memory ready.
CTRL_FAIL = FAIL, //!< An error occurred.
CTRL_NO_PRESENT = FAIL + 1, //!< Memory unplugged.
CTRL_BUSY = FAIL + 2 //!< Memory not initialized or changed.
} Ctrl_status;
// FYI: Each Logical Unit Number (LUN) corresponds to a memory.
// Check LUN defines.
#ifndef LUN_0
#error LUN_0 must be defined as ENABLE or DISABLE in conf_access.h
#endif
#ifndef LUN_1
#error LUN_1 must be defined as ENABLE or DISABLE in conf_access.h
#endif
#ifndef LUN_2
#error LUN_2 must be defined as ENABLE or DISABLE in conf_access.h
#endif
#ifndef LUN_3
#error LUN_3 must be defined as ENABLE or DISABLE in conf_access.h
#endif
#ifndef LUN_4
#error LUN_4 must be defined as ENABLE or DISABLE in conf_access.h
#endif
#ifndef LUN_5
#error LUN_5 must be defined as ENABLE or DISABLE in conf_access.h
#endif
#ifndef LUN_6
#error LUN_6 must be defined as ENABLE or DISABLE in conf_access.h
#endif
#ifndef LUN_7
#error LUN_7 must be defined as ENABLE or DISABLE in conf_access.h
#endif
#ifndef LUN_USB
#error LUN_USB must be defined as ENABLE or DISABLE in conf_access.h
#endif
/*! \name LUN IDs
*/
//! @{
#define LUN_ID_0 (0) //!< First static LUN.
#define LUN_ID_1 (LUN_ID_0 + LUN_0)
#define LUN_ID_2 (LUN_ID_1 + LUN_1)
#define LUN_ID_3 (LUN_ID_2 + LUN_2)
#define LUN_ID_4 (LUN_ID_3 + LUN_3)
#define LUN_ID_5 (LUN_ID_4 + LUN_4)
#define LUN_ID_6 (LUN_ID_5 + LUN_5)
#define LUN_ID_7 (LUN_ID_6 + LUN_6)
#define MAX_LUN (LUN_ID_7 + LUN_7) //!< Number of static LUNs.
#define LUN_ID_USB (MAX_LUN) //!< First dynamic LUN (USB host mass storage).
//! @}
// Include LUN header files.
#if LUN_0 == ENABLE
#include LUN_0_INCLUDE
#endif
#if LUN_1 == ENABLE
#include LUN_1_INCLUDE
#endif
#if LUN_2 == ENABLE
#include LUN_2_INCLUDE
#endif
#if LUN_3 == ENABLE
#include LUN_3_INCLUDE
#endif
#if LUN_4 == ENABLE
#include LUN_4_INCLUDE
#endif
#if LUN_5 == ENABLE
#include LUN_5_INCLUDE
#endif
#if LUN_6 == ENABLE
#include LUN_6_INCLUDE
#endif
#if LUN_7 == ENABLE
#include LUN_7_INCLUDE
#endif
#if LUN_USB == ENABLE
#include LUN_USB_INCLUDE
#endif
// Check the configuration of write protection in conf_access.h.
#ifndef GLOBAL_WR_PROTECT
#error GLOBAL_WR_PROTECT must be defined as true or false in conf_access.h
#endif
#if GLOBAL_WR_PROTECT == true
//! Write protect.
extern bool g_wr_protect;
#endif
/*! \name Control Interface
*/
//! @{
#ifdef FREERTOS_USED
/*! \brief Initializes the LUN access locker.
*
* \return \c true if the locker was successfully initialized, else \c false.
*/
extern bool ctrl_access_init(void);
#endif // FREERTOS_USED
/*! \brief Returns the number of LUNs.
*
* \return Number of LUNs in the system.
*/
extern U8 get_nb_lun(void);
/*! \brief Returns the current LUN.
*
* \return Current LUN.
*
* \todo Implement.
*/
extern U8 get_cur_lun(void);
/*! \brief Tests the memory state and initializes the memory if required.
*
* The TEST UNIT READY SCSI primary command allows an application client to poll
* a LUN until it is ready without having to allocate memory for returned data.
*
* This command may be used to check the media status of LUNs with removable
* media.
*
* \param lun Logical Unit Number.
*
* \return Status.
*/
extern Ctrl_status mem_test_unit_ready(U8 lun);
/*! \brief Returns the address of the last valid sector (512 bytes) in the
* memory.
*
* \param lun Logical Unit Number.
* \param u32_nb_sector Pointer to the address of the last valid sector.
*
* \return Status.
*/
extern Ctrl_status mem_read_capacity(U8 lun, U32 *u32_nb_sector);
/*! \brief Returns the size of the physical sector.
*
* \param lun Logical Unit Number.
*
* \return Sector size (unit: 512 bytes).
*/
extern U8 mem_sector_size(U8 lun);
/*! \brief Unload/load the medium.
*
* \param lun Logical Unit Number.
* \param unload \c true to unload the medium, \c false to load the medium.
*
* \return \c true if unload/load success, else \c false.
*/
extern bool mem_unload(U8 lun, bool unload);
/*! \brief Returns the write-protection state of the memory.
*
* \param lun Logical Unit Number.
*
* \return \c true if the memory is write-protected, else \c false.
*
* \note Only used by removable memories with hardware-specific write
* protection.
*/
extern bool mem_wr_protect(U8 lun);
/*! \brief Tells whether the memory is removable.
*
* \param lun Logical Unit Number.
*
* \return \c true if the memory is removable, else \c false.
*/
extern bool mem_removal(U8 lun);
/*! \brief Returns a pointer to the LUN name.
*
* \param lun Logical Unit Number.
*
* \return Pointer to the LUN name string.
*/
extern const char *mem_name(U8 lun);
//! @}
#if ACCESS_USB == true
/*! \name MEM <-> USB Interface
*/
//! @{
/*! \brief Transfers data from the memory to USB.
*
* \param lun Logical Unit Number.
* \param addr Address of first memory sector to read.
* \param nb_sector Number of sectors to transfer.
*
* \return Status.
*/
extern Ctrl_status memory_2_usb(U8 lun, U32 addr, U16 nb_sector);
/*! \brief Transfers data from USB to the memory.
*
* \param lun Logical Unit Number.
* \param addr Address of first memory sector to write.
* \param nb_sector Number of sectors to transfer.
*
* \return Status.
*/
extern Ctrl_status usb_2_memory(U8 lun, U32 addr, U16 nb_sector);
//! @}
#endif // ACCESS_USB == true
#if ACCESS_MEM_TO_RAM == true
/*! \name MEM <-> RAM Interface
*/
//! @{
/*! \brief Copies 1 data sector from the memory to RAM.
*
* \param lun Logical Unit Number.
* \param addr Address of first memory sector to read.
* \param ram Pointer to RAM buffer to write.
*
* \return Status.
*/
extern Ctrl_status memory_2_ram(U8 lun, U32 addr, void *ram);
/*! \brief Copies 1 data sector from RAM to the memory.
*
* \param lun Logical Unit Number.
* \param addr Address of first memory sector to write.
* \param ram Pointer to RAM buffer to read.
*
* \return Status.
*/
extern Ctrl_status ram_2_memory(U8 lun, U32 addr, const void *ram);
//! @}
#endif // ACCESS_MEM_TO_RAM == true
#if ACCESS_STREAM == true
/*! \name Streaming MEM <-> MEM Interface
*/
//! @{
//! Erroneous streaming data transfer ID.
#define ID_STREAM_ERR 0xFF
#if ACCESS_MEM_TO_MEM == true
/*! \brief Copies data from one memory to another.
*
* \param src_lun Source Logical Unit Number.
* \param src_addr Source address of first memory sector to read.
* \param dest_lun Destination Logical Unit Number.
* \param dest_addr Destination address of first memory sector to write.
* \param nb_sector Number of sectors to copy.
*
* \return Status.
*/
extern Ctrl_status stream_mem_to_mem(U8 src_lun, U32 src_addr, U8 dest_lun, U32 dest_addr, U16 nb_sector);
#endif // ACCESS_MEM_TO_MEM == true
/*! \brief Returns the state of a streaming data transfer.
*
* \param id Transfer ID.
*
* \return Status.
*
* \todo Implement.
*/
extern Ctrl_status stream_state(U8 id);
/*! \brief Stops a streaming data transfer.
*
* \param id Transfer ID.
*
* \return Number of remaining sectors.
*
* \todo Implement.
*/
extern U16 stream_stop(U8 id);
//! @}
#endif // ACCESS_STREAM == true
/**
* \}
*/
#ifdef __cplusplus
}
#endif
#endif // _CTRL_ACCESS_H_