diff options
Diffstat (limited to 'firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/COMPONENTS/MEMORY/DATA_FLASH')
4 files changed, 0 insertions, 1321 deletions
diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/COMPONENTS/MEMORY/DATA_FLASH/AT45DBX/at45dbx.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/COMPONENTS/MEMORY/DATA_FLASH/AT45DBX/at45dbx.c deleted file mode 100644 index 93d3dd9..0000000 --- a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/COMPONENTS/MEMORY/DATA_FLASH/AT45DBX/at45dbx.c +++ /dev/null @@ -1,653 +0,0 @@ -/* This source file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ - -/*This file is prepared for Doxygen automatic documentation generation.*/ -/*! \file ********************************************************************* - * - * \brief Management of the AT45DBX data flash controller through SPI. - * - * This file manages the accesses to the AT45DBX data flash components. - * - * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 - * - Supported devices: All AVR32 devices with an SPI module can be used. - * - AppNote: - * - * \author Atmel Corporation: http://www.atmel.com \n - * Support and FAQ: http://support.atmel.no/ - * - ******************************************************************************/ - -/* Copyright (c) 2009 Atmel Corporation. All rights reserved. - * - * 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 - * AVR 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 - * - */ - -//_____ I N C L U D E S ___________________________________________________ - -#include "conf_access.h" - - -#if AT45DBX_MEM == ENABLE - -#include "compiler.h" -#include "board.h" -#include "gpio.h" -#include "spi.h" -#include "conf_at45dbx.h" -#include "at45dbx.h" - - -#if AT45DBX_MEM_CNT > 4 - #error AT45DBX_MEM_CNT must not exceed 4 -#endif - - -//_____ D E F I N I T I O N S ______________________________________________ - -/*! \name AT45DBX Group A Commands - */ -//! @{ -#define AT45DBX_CMDA_RD_PAGE 0xD2 //!< Main Memory Page Read (Serial/8-bit Mode). -#define AT45DBX_CMDA_RD_ARRAY_LEG 0xE8 //!< Continuous Array Read, Legacy Command (Serial/8-bit Mode). -#define AT45DBX_CMDA_RD_ARRAY_LF_SM 0x03 //!< Continuous Array Read, Low-Frequency Mode (Serial Mode). -#define AT45DBX_CMDA_RD_ARRAY_AF_SM 0x0B //!< Continuous Array Read, Any-Frequency Mode (Serial Mode). -#define AT45DBX_CMDA_RD_SECTOR_PROT_REG 0x32 //!< Read Sector Protection Register (Serial/8-bit Mode). -#define AT45DBX_CMDA_RD_SECTOR_LKDN_REG 0x35 //!< Read Sector Lockdown Register (Serial/8-bit Mode). -#define AT45DBX_CMDA_RD_SECURITY_REG 0x77 //!< Read Security Register (Serial/8-bit Mode). -//! @} - -/*! \name AT45DBX Group B Commands - */ -//! @{ -#define AT45DBX_CMDB_ER_PAGE 0x81 //!< Page Erase (Serial/8-bit Mode). -#define AT45DBX_CMDB_ER_BLOCK 0x50 //!< Block Erase (Serial/8-bit Mode). -#define AT45DBX_CMDB_ER_SECTOR 0x7C //!< Sector Erase (Serial/8-bit Mode). -#define AT45DBX_CMDB_ER_CHIP 0xC794809A //!< Chip Erase (Serial/8-bit Mode). -#define AT45DBX_CMDB_XFR_PAGE_TO_BUF1 0x53 //!< Main Memory Page to Buffer 1 Transfer (Serial/8-bit Mode). -#define AT45DBX_CMDB_XFR_PAGE_TO_BUF2 0x55 //!< Main Memory Page to Buffer 2 Transfer (Serial/8-bit Mode). -#define AT45DBX_CMDB_CMP_PAGE_TO_BUF1 0x60 //!< Main Memory Page to Buffer 1 Compare (Serial/8-bit Mode). -#define AT45DBX_CMDB_CMP_PAGE_TO_BUF2 0x61 //!< Main Memory Page to Buffer 2 Compare (Serial/8-bit Mode). -#define AT45DBX_CMDB_PR_BUF1_TO_PAGE_ER 0x83 //!< Buffer 1 to Main Memory Page Program with Built-in Erase (Serial/8-bit Mode). -#define AT45DBX_CMDB_PR_BUF2_TO_PAGE_ER 0x86 //!< Buffer 2 to Main Memory Page Program with Built-in Erase (Serial/8-bit Mode). -#define AT45DBX_CMDB_PR_BUF1_TO_PAGE 0x88 //!< Buffer 1 to Main Memory Page Program without Built-in Erase (Serial/8-bit Mode). -#define AT45DBX_CMDB_PR_BUF2_TO_PAGE 0x89 //!< Buffer 2 to Main Memory Page Program without Built-in Erase (Serial/8-bit Mode). -#define AT45DBX_CMDB_PR_PAGE_TH_BUF1 0x82 //!< Main Memory Page Program through Buffer 1 (Serial/8-bit Mode). -#define AT45DBX_CMDB_PR_PAGE_TH_BUF2 0x85 //!< Main Memory Page Program through Buffer 2 (Serial/8-bit Mode). -#define AT45DBX_CMDB_RWR_PAGE_TH_BUF1 0x58 //!< Auto Page Rewrite through Buffer 1 (Serial/8-bit Mode). -#define AT45DBX_CMDB_RWR_PAGE_TH_BUF2 0x59 //!< Auto Page Rewrite through Buffer 2 (Serial/8-bit Mode). -//! @} - -/*! \name AT45DBX Group C Commands - */ -//! @{ -#define AT45DBX_CMDC_RD_BUF1_LF_SM 0xD1 //!< Buffer 1 Read, Low-Frequency Mode (Serial Mode). -#define AT45DBX_CMDC_RD_BUF2_LF_SM 0xD3 //!< Buffer 2 Read, Low-Frequency Mode (Serial Mode). -#define AT45DBX_CMDC_RD_BUF1_AF_SM 0xD4 //!< Buffer 1 Read, Any-Frequency Mode (Serial Mode). -#define AT45DBX_CMDC_RD_BUF2_AF_SM 0xD6 //!< Buffer 2 Read, Any-Frequency Mode (Serial Mode). -#define AT45DBX_CMDC_RD_BUF1_AF_8M 0x54 //!< Buffer 1 Read, Any-Frequency Mode (8-bit Mode). -#define AT45DBX_CMDC_RD_BUF2_AF_8M 0x56 //!< Buffer 2 Read, Any-Frequency Mode (8-bit Mode). -#define AT45DBX_CMDC_WR_BUF1 0x84 //!< Buffer 1 Write (Serial/8-bit Mode). -#define AT45DBX_CMDC_WR_BUF2 0x87 //!< Buffer 2 Write (Serial/8-bit Mode). -#define AT45DBX_CMDC_RD_STATUS_REG 0xD7 //!< Status Register Read (Serial/8-bit Mode). -#define AT45DBX_CMDC_RD_MNFCT_DEV_ID_SM 0x9F //!< Manufacturer and Device ID Read (Serial Mode). -//! @} - -/*! \name AT45DBX Group D Commands - */ -//! @{ -#define AT45DBX_CMDD_EN_SECTOR_PROT 0x3D2A7FA9 //!< Enable Sector Protection (Serial/8-bit Mode). -#define AT45DBX_CMDD_DIS_SECTOR_PROT 0x3D2A7F9A //!< Disable Sector Protection (Serial/8-bit Mode). -#define AT45DBX_CMDD_ER_SECTOR_PROT_REG 0x3D2A7FCF //!< Erase Sector Protection Register (Serial/8-bit Mode). -#define AT45DBX_CMDD_PR_SECTOR_PROT_REG 0x3D2A7FFC //!< Program Sector Protection Register (Serial/8-bit Mode). -#define AT45DBX_CMDD_LKDN_SECTOR 0x3D2A7F30 //!< Sector Lockdown (Serial/8-bit Mode). -#define AT45DBX_CMDD_PR_SECURITY_REG 0x9B000000 //!< Program Security Register (Serial/8-bit Mode). -#define AT45DBX_CMDD_PR_CONF_REG 0x3D2A80A6 //!< Program Configuration Register (Serial/8-bit Mode). -#define AT45DBX_CMDD_DEEP_PWR_DN 0xB9 //!< Deep Power-down (Serial/8-bit Mode). -#define AT45DBX_CMDD_RSM_DEEP_PWR_DN 0xAB //!< Resume from Deep Power-down (Serial/8-bit Mode). -//! @} - - -/*! \name Bit-Masks and Values for the Status Register - */ -//! @{ -#define AT45DBX_MSK_BUSY 0x80 //!< Busy status bit-mask. -#define AT45DBX_BUSY 0x00 //!< Busy status value (0x00 when busy, 0x80 when ready). -#define AT45DBX_MSK_DENSITY 0x3C //!< Device density bit-mask. -//! @} -#if AT45DBX_MEM_SIZE == AT45DBX_1MB - -/*! \name AT45DB081 Memories - */ -//! @{ -#define AT45DBX_DENSITY 0x24 //!< Device density value. -#define AT45DBX_BYTE_ADDR_BITS 9 //!< Address bits for byte position within buffer. - -//! @} -#elif AT45DBX_MEM_SIZE == AT45DBX_2MB - -/*! \name AT45DB161 Memories - */ -//! @{ -#define AT45DBX_DENSITY 0x2C //!< Device density value. -#define AT45DBX_BYTE_ADDR_BITS 10 //!< Address bits for byte position within buffer. -//! @} - -#elif AT45DBX_MEM_SIZE == AT45DBX_4MB - -/*! \name AT45DB321 Memories - */ -//! @{ -#define AT45DBX_DENSITY 0x34 //!< Device density value. -#define AT45DBX_BYTE_ADDR_BITS 10 //!< Address bits for byte position within buffer. -//! @} - -#elif AT45DBX_MEM_SIZE == AT45DBX_8MB - -/*! \name AT45DB642 Memories - */ -//! @{ -#define AT45DBX_DENSITY 0x3C //!< Device density value. -#define AT45DBX_BYTE_ADDR_BITS 11 //!< Address bits for byte position within buffer. -//! @} - -#else - #error AT45DBX_MEM_SIZE is not defined to a supported value -#endif - -//! Address bits for page selection. -#define AT45DBX_PAGE_ADDR_BITS (AT45DBX_MEM_SIZE - AT45DBX_PAGE_BITS) - -//! Number of bits for addresses within pages. -#define AT45DBX_PAGE_BITS (AT45DBX_BYTE_ADDR_BITS - 1) - -//! Page size in bytes. -#define AT45DBX_PAGE_SIZE (1 << AT45DBX_PAGE_BITS) - -//! Bit-mask for byte position within buffer in \ref gl_ptr_mem. -#define AT45DBX_MSK_PTR_BYTE ((1 << AT45DBX_PAGE_BITS) - 1) - -//! Bit-mask for page selection in \ref gl_ptr_mem. -#define AT45DBX_MSK_PTR_PAGE (((1 << AT45DBX_PAGE_ADDR_BITS) - 1) << AT45DBX_PAGE_BITS) - -//! Bit-mask for byte position within sector in \ref gl_ptr_mem. -#define AT45DBX_MSK_PTR_SECTOR ((1 << AT45DBX_SECTOR_BITS) - 1) - - -/*! \brief Sends a dummy byte through SPI. - */ -#define spi_write_dummy() spi_write(AT45DBX_SPI, 0xFF) - - -//! Boolean indicating whether memory is in busy state. -static Bool at45dbx_busy; - -//! Memory data pointer. -static U32 gl_ptr_mem; - -//! Sector buffer. -static U8 sector_buf[AT45DBX_SECTOR_SIZE]; - - -/*! \name Control Functions - */ -//! @{ - - -Bool at45dbx_init(spi_options_t spiOptions, unsigned int pba_hz) -{ - // Setup SPI registers according to spiOptions. - for (spiOptions.reg = AT45DBX_SPI_FIRST_NPCS; - spiOptions.reg < AT45DBX_SPI_FIRST_NPCS + AT45DBX_MEM_CNT; - spiOptions.reg++) - { - if (spi_setupChipReg(AT45DBX_SPI, &spiOptions, pba_hz) != SPI_OK) return KO; - } - - // Memory ready. - at45dbx_busy = FALSE; - - return OK; -} - - -/*! \brief Selects or unselects a DF memory. - * - * \param memidx Memory ID of DF to select or unselect. - * \param bSelect Boolean indicating whether the DF memory has to be selected. - */ -static void at45dbx_chipselect_df(U8 memidx, Bool bSelect) -{ - if (bSelect) - { - // Select SPI chip. - spi_selectChip(AT45DBX_SPI, AT45DBX_SPI_FIRST_NPCS + memidx); - } - else - { - // Unselect SPI chip. - spi_unselectChip(AT45DBX_SPI, AT45DBX_SPI_FIRST_NPCS + memidx); - } -} - - -Bool at45dbx_mem_check(void) -{ - U8 df; - U16 status = 0; - - // DF memory check. - for (df = 0; df < AT45DBX_MEM_CNT; df++) - { - // Select the DF memory to check. - at45dbx_chipselect_df(df, TRUE); - - // Send the Status Register Read command. - spi_write(AT45DBX_SPI, AT45DBX_CMDC_RD_STATUS_REG); - - // Send a dummy byte to read the status register. - spi_write_dummy(); - spi_read(AT45DBX_SPI, &status); - - // Unselect the checked DF memory. - at45dbx_chipselect_df(df, FALSE); - - // Unexpected device density value. - if ((status & AT45DBX_MSK_DENSITY) < AT45DBX_DENSITY) return KO; - } - - return OK; -} - - -/*! \brief Waits until the DF is ready. - */ -static void at45dbx_wait_ready(void) -{ - U16 status; - - // Select the DF memory gl_ptr_mem points to. - at45dbx_chipselect_df(gl_ptr_mem >> AT45DBX_MEM_SIZE, TRUE); - - // Send the Status Register Read command. - spi_write(AT45DBX_SPI, AT45DBX_CMDC_RD_STATUS_REG); - - // Read the status register until the DF is ready. - do - { - // Send a dummy byte to read the status register. - spi_write_dummy(); - spi_read(AT45DBX_SPI, &status); - } while ((status & AT45DBX_MSK_BUSY) == AT45DBX_BUSY); - - // Unselect the DF memory gl_ptr_mem points to. - at45dbx_chipselect_df(gl_ptr_mem >> AT45DBX_MEM_SIZE, FALSE); -} - - -Bool at45dbx_read_open(U32 sector) -{ - U32 addr; - - // Set the global memory pointer to a byte address. - gl_ptr_mem = sector << AT45DBX_SECTOR_BITS; // gl_ptr_mem = sector * AT45DBX_SECTOR_SIZE. - - // If the DF memory is busy, wait until it's ready. - if (at45dbx_busy) at45dbx_wait_ready(); - at45dbx_busy = FALSE; - - // Select the DF memory gl_ptr_mem points to. - at45dbx_chipselect_df(gl_ptr_mem >> AT45DBX_MEM_SIZE, TRUE); - - // Initiate a page read at a given sector. - - // Send the Main Memory Page Read command. - spi_write(AT45DBX_SPI, AT45DBX_CMDA_RD_PAGE); - - // Send the three address bytes, which comprise: - // - (24 - (AT45DBX_PAGE_ADDR_BITS + AT45DBX_BYTE_ADDR_BITS)) reserved bits; - // - then AT45DBX_PAGE_ADDR_BITS bits specifying the page in main memory to be read; - // - then AT45DBX_BYTE_ADDR_BITS bits specifying the starting byte address within that page. - // NOTE: The bits of gl_ptr_mem above the AT45DBX_MEM_SIZE bits are useless for the local - // DF addressing. They are used for DF discrimination when there are several DFs. - addr = (Rd_bitfield(gl_ptr_mem, AT45DBX_MSK_PTR_PAGE) << AT45DBX_BYTE_ADDR_BITS) | - Rd_bitfield(gl_ptr_mem, AT45DBX_MSK_PTR_BYTE); - spi_write(AT45DBX_SPI, LSB2W(addr)); - spi_write(AT45DBX_SPI, LSB1W(addr)); - spi_write(AT45DBX_SPI, LSB0W(addr)); - - // Send 32 don't care clock cycles to initialize the read operation. - spi_write_dummy(); - spi_write_dummy(); - spi_write_dummy(); - spi_write_dummy(); - - return OK; -} - - -void at45dbx_read_close(void) -{ - // Unselect the DF memory gl_ptr_mem points to. - at45dbx_chipselect_df(gl_ptr_mem >> AT45DBX_MEM_SIZE, FALSE); - - // Memory ready. - at45dbx_busy = FALSE; -} - - -Bool at45dbx_write_open(U32 sector) -{ - U32 addr; - - // Set the global memory pointer to a byte address. - gl_ptr_mem = sector << AT45DBX_SECTOR_BITS; // gl_ptr_mem = sector * AT45DBX_SECTOR_SIZE. - - // If the DF memory is busy, wait until it's ready. - if (at45dbx_busy) at45dbx_wait_ready(); - at45dbx_busy = FALSE; - -#if AT45DBX_PAGE_SIZE > AT45DBX_SECTOR_SIZE - // Select the DF memory gl_ptr_mem points to. - at45dbx_chipselect_df(gl_ptr_mem >> AT45DBX_MEM_SIZE, TRUE); - - // Transfer the content of the current page to buffer 1. - - // Send the Main Memory Page to Buffer 1 Transfer command. - spi_write(AT45DBX_SPI, AT45DBX_CMDB_XFR_PAGE_TO_BUF1); - - // Send the three address bytes, which comprise: - // - (24 - (AT45DBX_PAGE_ADDR_BITS + AT45DBX_BYTE_ADDR_BITS)) reserved bits; - // - then AT45DBX_PAGE_ADDR_BITS bits specifying the page in main memory to be read; - // - then AT45DBX_BYTE_ADDR_BITS don't care bits. - // NOTE: The bits of gl_ptr_mem above the AT45DBX_MEM_SIZE bits are useless for the local - // DF addressing. They are used for DF discrimination when there are several DFs. - addr = Rd_bitfield(gl_ptr_mem, AT45DBX_MSK_PTR_PAGE) << AT45DBX_BYTE_ADDR_BITS; - spi_write(AT45DBX_SPI, LSB2W(addr)); - spi_write(AT45DBX_SPI, LSB1W(addr)); - spi_write(AT45DBX_SPI, LSB0W(addr)); - - // Unselect the DF memory gl_ptr_mem points to. - at45dbx_chipselect_df(gl_ptr_mem >> AT45DBX_MEM_SIZE, FALSE); - - // Wait for end of page transfer. - at45dbx_wait_ready(); -#endif - - // Select the DF memory gl_ptr_mem points to. - at45dbx_chipselect_df(gl_ptr_mem >> AT45DBX_MEM_SIZE, TRUE); - - // Initiate a page write at a given sector. - - // Send the Main Memory Page Program through Buffer 1 command. - spi_write(AT45DBX_SPI, AT45DBX_CMDB_PR_PAGE_TH_BUF1); - - // Send the three address bytes, which comprise: - // - (24 - (AT45DBX_PAGE_ADDR_BITS + AT45DBX_BYTE_ADDR_BITS)) reserved bits; - // - then AT45DBX_PAGE_ADDR_BITS bits specifying the page in main memory to be written; - // - then AT45DBX_BYTE_ADDR_BITS bits specifying the starting byte address within that page. - // NOTE: The bits of gl_ptr_mem above the AT45DBX_MEM_SIZE bits are useless for the local - // DF addressing. They are used for DF discrimination when there are several DFs. - addr = (Rd_bitfield(gl_ptr_mem, AT45DBX_MSK_PTR_PAGE) << AT45DBX_BYTE_ADDR_BITS) | - Rd_bitfield(gl_ptr_mem, AT45DBX_MSK_PTR_BYTE); - spi_write(AT45DBX_SPI, LSB2W(addr)); - spi_write(AT45DBX_SPI, LSB1W(addr)); - spi_write(AT45DBX_SPI, LSB0W(addr)); - - return OK; -} - - -void at45dbx_write_close(void) -{ - // While end of logical sector not reached, zero-fill remaining memory bytes. - while (Rd_bitfield(gl_ptr_mem, AT45DBX_MSK_PTR_SECTOR)) - { - spi_write(AT45DBX_SPI, 0x00); - gl_ptr_mem++; - } - - // Unselect the DF memory gl_ptr_mem points to. - at45dbx_chipselect_df(gl_ptr_mem >> AT45DBX_MEM_SIZE, FALSE); - - // Memory busy. - at45dbx_busy = TRUE; -} - - -//! @} - - -/*! \name Single-Byte Access Functions - */ -//! @{ - - -U8 at45dbx_read_byte(void) -{ - U16 data; - - // Memory busy. - if (at45dbx_busy) - { - // Being here, we know that we previously finished a page read. - // => We have to access the next page. - - // Memory ready. - at45dbx_busy = FALSE; - - // Eventually select the next DF and open the next page. - // NOTE: at45dbx_read_open input parameter is a sector. - at45dbx_read_open(gl_ptr_mem >> AT45DBX_SECTOR_BITS); // gl_ptr_mem / AT45DBX_SECTOR_SIZE. - } - - // Send a dummy byte to read the next data byte. - spi_write_dummy(); - spi_read(AT45DBX_SPI, &data); - gl_ptr_mem++; - - // If end of page reached, - if (!Rd_bitfield(gl_ptr_mem, AT45DBX_MSK_PTR_BYTE)) - { - // unselect the DF memory gl_ptr_mem points to. - at45dbx_chipselect_df(gl_ptr_mem >> AT45DBX_MEM_SIZE, FALSE); - - // Memory busy. - at45dbx_busy = TRUE; - } - - return data; -} - - -Bool at45dbx_write_byte(U8 b) -{ - // Memory busy. - if (at45dbx_busy) - { - // Being here, we know that we previously launched a page programming. - // => We have to access the next page. - - // Eventually select the next DF and open the next page. - // NOTE: at45dbx_write_open input parameter is a sector. - at45dbx_write_open(gl_ptr_mem >> AT45DBX_SECTOR_BITS); // gl_ptr_mem / AT45DBX_SECTOR_SIZE. - } - - // Write the next data byte. - spi_write(AT45DBX_SPI, b); - gl_ptr_mem++; - - // If end of page reached, - if (!Rd_bitfield(gl_ptr_mem, AT45DBX_MSK_PTR_BYTE)) - { - // unselect the DF memory gl_ptr_mem points to in order to program the page. - at45dbx_chipselect_df(gl_ptr_mem >> AT45DBX_MEM_SIZE, FALSE); - - // Memory busy. - at45dbx_busy = TRUE; - } - - return OK; -} - - -//! @} - - -/*! \name Multiple-Sector Access Functions - */ -//! @{ - - -Bool at45dbx_read_multiple_sector(U16 nb_sector) -{ - while (nb_sector--) - { - // Read the next sector. - at45dbx_read_sector_2_ram(sector_buf); - at45dbx_read_multiple_sector_callback(sector_buf); - } - - return OK; -} - - -Bool at45dbx_write_multiple_sector(U16 nb_sector) -{ - while (nb_sector--) - { - // Write the next sector. - at45dbx_write_multiple_sector_callback(sector_buf); - at45dbx_write_sector_from_ram(sector_buf); - } - - return OK; -} - - -//! @} - - -/*! \name Single-Sector Access Functions - */ -//! @{ - - -Bool at45dbx_read_sector_2_ram(void *ram) -{ - U8 *_ram = ram; - U16 i; - U16 data; - - // Memory busy. - if (at45dbx_busy) - { - // Being here, we know that we previously finished a page read. - // => We have to access the next page. - - // Memory ready. - at45dbx_busy = FALSE; - - // Eventually select the next DF and open the next page. - // NOTE: at45dbx_read_open input parameter is a sector. - at45dbx_read_open(gl_ptr_mem >> AT45DBX_SECTOR_BITS); // gl_ptr_mem / AT45DBX_SECTOR_SIZE. - } - - // Read the next sector. - for (i = AT45DBX_SECTOR_SIZE; i; i--) - { - // Send a dummy byte to read the next data byte. - spi_write_dummy(); - spi_read(AT45DBX_SPI, &data); - *_ram++ = data; - } - - // Update the memory pointer. - gl_ptr_mem += AT45DBX_SECTOR_SIZE; - -#if AT45DBX_PAGE_SIZE > AT45DBX_SECTOR_SIZE - // If end of page reached, - if (!Rd_bitfield(gl_ptr_mem, AT45DBX_MSK_PTR_BYTE)) -#endif - { - // unselect the DF memory gl_ptr_mem points to. - at45dbx_chipselect_df(gl_ptr_mem >> AT45DBX_MEM_SIZE, FALSE); - - // Memory busy. - at45dbx_busy = TRUE; - } - - return OK; -} - - -Bool at45dbx_write_sector_from_ram(const void *ram) -{ - const U8 *_ram = ram; - U16 i; - - // Memory busy. - if (at45dbx_busy) - { - // Being here, we know that we previously launched a page programming. - // => We have to access the next page. - - // Eventually select the next DF and open the next page. - // NOTE: at45dbx_write_open input parameter is a sector. - at45dbx_write_open(gl_ptr_mem >> AT45DBX_SECTOR_BITS); // gl_ptr_mem / AT45DBX_SECTOR_SIZE. - } - - // Write the next sector. - for (i = AT45DBX_SECTOR_SIZE; i; i--) - { - // Write the next data byte. - spi_write(AT45DBX_SPI, *_ram++); - } - - // Update the memory pointer. - gl_ptr_mem += AT45DBX_SECTOR_SIZE; - -#if AT45DBX_PAGE_SIZE > AT45DBX_SECTOR_SIZE - // If end of page reached, - if (!Rd_bitfield(gl_ptr_mem, AT45DBX_MSK_PTR_BYTE)) -#endif - { - // unselect the DF memory gl_ptr_mem points to in order to program the page. - at45dbx_chipselect_df(gl_ptr_mem >> AT45DBX_MEM_SIZE, FALSE); - - // Memory busy. - at45dbx_busy = TRUE; - } - - return OK; -} - - -//! @} - - -#endif // AT45DBX_MEM == ENABLE diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/COMPONENTS/MEMORY/DATA_FLASH/AT45DBX/at45dbx.h b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/COMPONENTS/MEMORY/DATA_FLASH/AT45DBX/at45dbx.h deleted file mode 100644 index e5263b2..0000000 --- a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/COMPONENTS/MEMORY/DATA_FLASH/AT45DBX/at45dbx.h +++ /dev/null @@ -1,270 +0,0 @@ -/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ - -/*This file is prepared for Doxygen automatic documentation generation.*/ -/*! \file ********************************************************************* - * - * \brief Management of the AT45DBX data flash controller through SPI. - * - * This file manages the accesses to the AT45DBX data flash components. - * - * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 - * - Supported devices: All AVR32 devices with an SPI module can be used. - * - AppNote: - * - * \author Atmel Corporation: http://www.atmel.com \n - * Support and FAQ: http://support.atmel.no/ - * - ******************************************************************************/ - -/* Copyright (c) 2009 Atmel Corporation. All rights reserved. - * - * 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 - * AVR 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 - * - */ - -#ifndef _AT45DBX_H_ -#define _AT45DBX_H_ - - -#include "conf_access.h" - -#if AT45DBX_MEM == DISABLE - #error at45dbx.h is #included although AT45DBX_MEM is disabled -#endif - - -#include "spi.h" - - -//_____ D E F I N I T I O N S ______________________________________________ - -/*! \name Available AT45DBX Sizes - * - * Number of address bits of available AT45DBX data flash memories. - * - * \note Only memories with page sizes of at least 512 bytes (sector size) are - * supported. - */ -//! @{ -#define AT45DBX_1MB 20 -#define AT45DBX_2MB 21 -#define AT45DBX_4MB 22 -#define AT45DBX_8MB 23 -//! @} - -// AT45DBX_1MB -#define AT45DBX_SECTOR_BITS 8 //! Number of bits for addresses within sectors. -// AT45DBX_2MB AT45DBX_4MB AT45DBX_8MB -//#define AT45DBX_SECTOR_BITS 9 //! Number of bits for addresses within sectors. - -//! Sector size in bytes. -#define AT45DBX_SECTOR_SIZE (1 << AT45DBX_SECTOR_BITS) - - -//_____ D E C L A R A T I O N S ____________________________________________ - -/*! \name Control Functions - */ -//! @{ - -/*! \brief Initializes the data flash controller and the SPI channel by which - * the DF is controlled. - * - * \param spiOptions Initialization options of the DF SPI channel. - * \param pba_hz SPI module input clock frequency (PBA clock, Hz). - * - * \retval OK Success. - * \retval KO Failure. - */ -extern Bool at45dbx_init(spi_options_t spiOptions, unsigned int pba_hz); - -/*! \brief Performs a memory check on all DFs. - * - * \retval OK Success. - * \retval KO Failure. - */ -extern Bool at45dbx_mem_check(void); - -/*! \brief Opens a DF memory in read mode at a given sector. - * - * \param sector Start sector. - * - * \retval OK Success. - * \retval KO Failure. - * - * \note Sector may be page-unaligned (depending on the DF page size). - */ -extern Bool at45dbx_read_open(U32 sector); - -/*! \brief Unselects the current DF memory. - */ -extern void at45dbx_read_close(void); - -/*! \brief This function opens a DF memory in write mode at a given sector. - * - * \param sector Start sector. - * - * \retval OK Success. - * \retval KO Failure. - * - * \note Sector may be page-unaligned (depending on the DF page size). - * - * \note If \ref AT45DBX_PAGE_SIZE > \ref AT45DBX_SECTOR_SIZE, page content is - * first loaded in buffer to then be partially updated by write byte or - * write sector functions. - */ -extern Bool at45dbx_write_open(U32 sector); - -/*! \brief Fills the end of the current logical sector and launches page programming. - */ -extern void at45dbx_write_close(void); - -//! @} - - -/*! \name Single-Byte Access Functions - */ -//! @{ - -/*! \brief Performs a single byte read from DF memory. - * - * \return The read byte. - * - * \note First call must be preceded by a call to the \ref at45dbx_read_open - * function. - */ -extern U8 at45dbx_read_byte(void); - -/*! \brief Performs a single byte write to DF memory. - * - * \param b The byte to write. - * - * \retval OK Success. - * \retval KO Failure. - * - * \note First call must be preceded by a call to the \ref at45dbx_write_open - * function. - */ -extern Bool at45dbx_write_byte(U8 b); - -//! @} - - -/*! \name Multiple-Sector Access Functions - */ -//! @{ - -/*! \brief Reads \a nb_sector sectors from DF memory. - * - * Data flow is: DF -> callback. - * - * \param nb_sector Number of contiguous sectors to read. - * - * \retval OK Success. - * \retval KO Failure. - * - * \note First call must be preceded by a call to the \ref at45dbx_read_open - * function. - * - * \note As \ref AT45DBX_PAGE_SIZE is always a multiple of - * \ref AT45DBX_SECTOR_SIZE, there is no need to check page end for each - * byte. - */ -extern Bool at45dbx_read_multiple_sector(U16 nb_sector); - -/*! \brief Callback function invoked after each sector read during - * \ref at45dbx_read_multiple_sector. - * - * \param psector Pointer to read sector. - */ -extern void at45dbx_read_multiple_sector_callback(const void *psector); - -/*! \brief Writes \a nb_sector sectors to DF memory. - * - * Data flow is: callback -> DF. - * - * \param nb_sector Number of contiguous sectors to write. - * - * \retval OK Success. - * \retval KO Failure. - * - * \note First call must be preceded by a call to the \ref at45dbx_write_open - * function. - * - * \note As \ref AT45DBX_PAGE_SIZE is always a multiple of - * \ref AT45DBX_SECTOR_SIZE, there is no need to check page end for each - * byte. - */ -extern Bool at45dbx_write_multiple_sector(U16 nb_sector); - -/*! \brief Callback function invoked before each sector write during - * \ref at45dbx_write_multiple_sector. - * - * \param psector Pointer to sector to write. - */ -extern void at45dbx_write_multiple_sector_callback(void *psector); - -//! @} - - -/*! \name Single-Sector Access Functions - */ -//! @{ - -/*! \brief Reads 1 DF sector to a RAM buffer. - * - * Data flow is: DF -> RAM. - * - * \param ram Pointer to RAM buffer. - * - * \retval OK Success. - * \retval KO Failure. - * - * \note First call must be preceded by a call to the \ref at45dbx_read_open - * function. - */ -extern Bool at45dbx_read_sector_2_ram(void *ram); - -/*! \brief Writes 1 DF sector from a RAM buffer. - * - * Data flow is: RAM -> DF. - * - * \param ram Pointer to RAM buffer. - * - * \retval OK Success. - * \retval KO Failure. - * - * \note First call must be preceded by a call to the \ref at45dbx_write_open - * function. - */ -extern Bool at45dbx_write_sector_from_ram(const void *ram); - -//! @} - - -#endif // _AT45DBX_H_ diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/COMPONENTS/MEMORY/DATA_FLASH/AT45DBX/at45dbx_mem.c b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/COMPONENTS/MEMORY/DATA_FLASH/AT45DBX/at45dbx_mem.c deleted file mode 100644 index 4c0ace2..0000000 --- a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/COMPONENTS/MEMORY/DATA_FLASH/AT45DBX/at45dbx_mem.c +++ /dev/null @@ -1,234 +0,0 @@ -/* This source file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ - -/*This file is prepared for Doxygen automatic documentation generation.*/ -/*! \file ********************************************************************* - * - * \brief CTRL_ACCESS interface for the AT45DBX data flash controller. - * - * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 - * - Supported devices: All AVR32 devices with an SPI module can be used. - * - AppNote: - * - * \author Atmel Corporation: http://www.atmel.com \n - * Support and FAQ: http://support.atmel.no/ - * - ******************************************************************************/ - -/* Copyright (c) 2009 Atmel Corporation. All rights reserved. - * - * 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 - * AVR 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 - * - */ - -//_____ I N C L U D E S ___________________________________________________ - -#include "conf_access.h" - - -#if AT45DBX_MEM == ENABLE - -#include "conf_at45dbx.h" -#include "at45dbx.h" -#include "at45dbx_mem.h" - - -//_____ D E F I N I T I O N S ______________________________________________ - -//! Whether to detect write accesses to the memory. -#define AT45DBX_MEM_TEST_CHANGE_STATE ENABLED - - -#if (ACCESS_USB == ENABLED || ACCESS_MEM_TO_RAM == ENABLED) && AT45DBX_MEM_TEST_CHANGE_STATE == ENABLED - -//! Memory data modified flag. -static volatile Bool s_b_data_modify = FALSE; - -#endif - - -/*! \name Control Interface - */ -//! @{ - - -Ctrl_status at45dbx_test_unit_ready(void) -{ - return (at45dbx_mem_check() == OK) ? CTRL_GOOD : CTRL_NO_PRESENT; -} - - -Ctrl_status at45dbx_read_capacity(U32 *u32_nb_sector) -{ - *u32_nb_sector = (AT45DBX_MEM_CNT << (AT45DBX_MEM_SIZE - AT45DBX_SECTOR_BITS)) - 1; - - return CTRL_GOOD; -} - - -Bool at45dbx_wr_protect(void) -{ - return FALSE; -} - - -Bool at45dbx_removal(void) -{ - return FALSE; -} - - -//! @} - - -#if ACCESS_USB == ENABLED - -#include "usb_drv.h" -#include "scsi_decoder.h" - - -/*! \name MEM <-> USB Interface - */ -//! @{ - - -Ctrl_status at45dbx_usb_read_10(U32 addr, U16 nb_sector) -{ - if (addr + nb_sector > AT45DBX_MEM_CNT << (AT45DBX_MEM_SIZE - AT45DBX_SECTOR_BITS)) return CTRL_FAIL; - - at45dbx_read_open(addr); - at45dbx_read_multiple_sector(nb_sector); - at45dbx_read_close(); - - return CTRL_GOOD; -} - - -void at45dbx_read_multiple_sector_callback(const void *psector) -{ - U16 data_to_transfer = AT45DBX_SECTOR_SIZE; - - // Transfer read sector to the USB interface. - while (data_to_transfer) - { - while (!Is_usb_in_ready(g_scsi_ep_ms_in)) - { - if(!Is_usb_endpoint_enabled(g_scsi_ep_ms_in)) - return; // USB Reset - } - - Usb_reset_endpoint_fifo_access(g_scsi_ep_ms_in); - data_to_transfer = usb_write_ep_txpacket(g_scsi_ep_ms_in, psector, - data_to_transfer, &psector); - Usb_ack_in_ready_send(g_scsi_ep_ms_in); - } -} - - -Ctrl_status at45dbx_usb_write_10(U32 addr, U16 nb_sector) -{ - if (addr + nb_sector > AT45DBX_MEM_CNT << (AT45DBX_MEM_SIZE - AT45DBX_SECTOR_BITS)) return CTRL_FAIL; - -#if AT45DBX_MEM_TEST_CHANGE_STATE == ENABLED - if (nb_sector) s_b_data_modify = TRUE; -#endif - - at45dbx_write_open(addr); - at45dbx_write_multiple_sector(nb_sector); - at45dbx_write_close(); - - return CTRL_GOOD; -} - - -void at45dbx_write_multiple_sector_callback(void *psector) -{ - U16 data_to_transfer = AT45DBX_SECTOR_SIZE; - - // Transfer sector to write from the USB interface. - while (data_to_transfer) - { - while (!Is_usb_out_received(g_scsi_ep_ms_out)) - { - if(!Is_usb_endpoint_enabled(g_scsi_ep_ms_out)) - return; // USB Reset - } - - Usb_reset_endpoint_fifo_access(g_scsi_ep_ms_out); - data_to_transfer = usb_read_ep_rxpacket(g_scsi_ep_ms_out, psector, - data_to_transfer, &psector); - Usb_ack_out_received_free(g_scsi_ep_ms_out); - } -} - - -//! @} - -#endif // ACCESS_USB == ENABLED - - -#if ACCESS_MEM_TO_RAM == ENABLED - -/*! \name MEM <-> RAM Interface - */ -//! @{ - - -Ctrl_status at45dbx_df_2_ram(U32 addr, void *ram) -{ - if (addr + 1 > AT45DBX_MEM_CNT << (AT45DBX_MEM_SIZE - AT45DBX_SECTOR_BITS)) return CTRL_FAIL; - - at45dbx_read_open(addr); - at45dbx_read_sector_2_ram(ram); - at45dbx_read_close(); - - return CTRL_GOOD; -} - - -Ctrl_status at45dbx_ram_2_df(U32 addr, const void *ram) -{ - if (addr + 1 > AT45DBX_MEM_CNT << (AT45DBX_MEM_SIZE - AT45DBX_SECTOR_BITS)) return CTRL_FAIL; - -#if AT45DBX_MEM_TEST_CHANGE_STATE == ENABLED - s_b_data_modify = TRUE; -#endif - - at45dbx_write_open(addr); - at45dbx_write_sector_from_ram(ram); - at45dbx_write_close(); - - return CTRL_GOOD; -} - - -//! @} - -#endif // ACCESS_MEM_TO_RAM == ENABLED - - -#endif // AT45DBX_MEM == ENABLE diff --git a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/COMPONENTS/MEMORY/DATA_FLASH/AT45DBX/at45dbx_mem.h b/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/COMPONENTS/MEMORY/DATA_FLASH/AT45DBX/at45dbx_mem.h deleted file mode 100644 index de24fa3..0000000 --- a/firmwares/wifishield/wifiHD/src/SOFTWARE_FRAMEWORK/COMPONENTS/MEMORY/DATA_FLASH/AT45DBX/at45dbx_mem.h +++ /dev/null @@ -1,164 +0,0 @@ -/* This header file is part of the ATMEL AVR-UC3-SoftwareFramework-1.7.0 Release */ - -/*This file is prepared for Doxygen automatic documentation generation.*/ -/*! \file ********************************************************************* - * - * \brief CTRL_ACCESS interface for the AT45DBX data flash controller. - * - * - Compiler: IAR EWAVR32 and GNU GCC for AVR32 - * - Supported devices: All AVR32 devices with an SPI module can be used. - * - AppNote: - * - * \author Atmel Corporation: http://www.atmel.com \n - * Support and FAQ: http://support.atmel.no/ - * - ******************************************************************************/ - -/* Copyright (c) 2009 Atmel Corporation. All rights reserved. - * - * 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 - * AVR 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 - * - */ - -#ifndef _AT45DBX_MEM_H_ -#define _AT45DBX_MEM_H_ - - -#include "conf_access.h" - -#if AT45DBX_MEM == DISABLE - #error at45dbx_mem.h is #included although AT45DBX_MEM is disabled -#endif - - -#include "ctrl_access.h" - - -//_____ D E C L A R A T I O N S ____________________________________________ - -/*! \name Control Interface - */ -//! @{ - -/*! \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. - * - * \return Status. - */ -extern Ctrl_status at45dbx_test_unit_ready(void); - -/*! \brief Returns the address of the last valid sector in the memory. - * - * \param u32_nb_sector Pointer to the address of the last valid sector. - * - * \return Status. - */ -extern Ctrl_status at45dbx_read_capacity(U32 *u32_nb_sector); - -/*! \brief Returns the write-protection state of the memory. - * - * \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 at45dbx_wr_protect(void); - -/*! \brief Tells whether the memory is removable. - * - * \return \c TRUE if the memory is removable, else \c FALSE. - */ -extern Bool at45dbx_removal(void); - -//! @} - - -#if ACCESS_USB == ENABLED - -/*! \name MEM <-> USB Interface - */ -//! @{ - -/*! \brief Tranfers data from the memory to USB. - * - * \param addr Address of first memory sector to read. - * \param nb_sector Number of sectors to transfer. - * - * \return Status. - */ -extern Ctrl_status at45dbx_usb_read_10(U32 addr, U16 nb_sector); - -/*! \brief Tranfers data from USB to the memory. - * - * \param addr Address of first memory sector to write. - * \param nb_sector Number of sectors to transfer. - * - * \return Status. - */ -extern Ctrl_status at45dbx_usb_write_10(U32 addr, U16 nb_sector); - -//! @} - -#endif - - -#if ACCESS_MEM_TO_RAM == ENABLED - -/*! \name MEM <-> RAM Interface - */ -//! @{ - -/*! \brief Copies 1 data sector from the memory to RAM. - * - * \param addr Address of first memory sector to read. - * \param ram Pointer to RAM buffer to write. - * - * \return Status. - */ -extern Ctrl_status at45dbx_df_2_ram(U32 addr, void *ram); - -/*! \brief Copies 1 data sector from RAM to the memory. - * - * \param addr Address of first memory sector to write. - * \param ram Pointer to RAM buffer to read. - * - * \return Status. - */ -extern Ctrl_status at45dbx_ram_2_df(U32 addr, const void *ram); - -//! @} - -#endif - - -#endif // _AT45DBX_MEM_H_ |