add SPI SD card driver.
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1568 bbd45198-f89e-11dd-88c7-29a3b14d5316
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/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
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* File Name : msd.c
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* Author : MCD Application Team
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* Version : V2.1
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* Date : 05/30/2008
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* Description : MSD card driver source file.
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* Pin assignment:
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* ----------------------------------------------
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* | STM32F10x | MSD Pin |
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* ----------------------------------------------
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* | P0.4 | ChipSelect 1 |
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* | P0.1 / MOSI | DataIn 2 |
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* | | GND 3 (0 V) |
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* | | VDD 4 (3.3 V) |
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* | P0.2 / SCLK | Clock 5 |
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* | | GND 6 (0 V) |
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* | P0.0 / MISO | DataOut 7 |
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* -----------------------------------------------
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********************************************************************************
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* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
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* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
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* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
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* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
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* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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* FOR MORE INFORMATION PLEASE CAREFULLY READ THE LICENSE AGREEMENT FILE LOCATED
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* IN THE ROOT DIRECTORY OF THIS FIRMWARE PACKAGE.
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*******************************************************************************/
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/* Includes ------------------------------------------------------------------*/
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#include "msd.h"
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#include <stm32f10x_spi.h>
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#include <rtthread.h>
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/* Private typedef -----------------------------------------------------------*/
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/* Private define ------------------------------------------------------------*/
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/* Private macro -------------------------------------------------------------*/
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/* Select MSD Card: ChipSelect pin low */
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#define MSD_CS_LOW() GPIO_ResetBits(GPIOA, GPIO_Pin_4)
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/* Deselect MSD Card: ChipSelect pin high */
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#define MSD_CS_HIGH() GPIO_SetBits(GPIOA, GPIO_Pin_4)
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#define MSD_SPI SPI1
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#define MSD_RCC_SPI RCC_APB2Periph_SPI1
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/* Private function prototypes -----------------------------------------------*/
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static void SPI_Config(void);
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/* Private functions ---------------------------------------------------------*/
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/*******************************************************************************
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* Function Name : MSD_Init
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* Description : Initializes the MSD/SD communication.
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* Input : None
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* Output : None
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* Return : The MSD Response: - MSD_RESPONSE_FAILURE: Sequence failed
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* - MSD_RESPONSE_NO_ERROR: Sequence succeed
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*******************************************************************************/
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u8 MSD_Init(void)
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{
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u32 i = 0;
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/* Initialize SPI */
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SPI_Config();
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/* MSD chip select high */
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MSD_CS_HIGH();
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/* Send dummy byte 0xFF, 10 times with CS high*/
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/* rise CS and MOSI for 80 clocks cycles */
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for (i = 0; i < 10; i++)
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{
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/* Send dummy byte 0xFF */
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MSD_WriteByte(DUMMY);
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}
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/*------------Put MSD in SPI mode--------------*/
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/* MSD initialized and set to SPI mode properly */
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return (MSD_GoIdleState());
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}
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/*******************************************************************************
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* Function Name : MSD_WriteBlock
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* Description : Writes a block on the MSD
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* Input : - pBuffer : pointer to the buffer containing the data to be
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* written on the MSD.
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* - WriteAddr : address to write on.
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* - NumByteToWrite: number of data to write
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* Output : None
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* Return : The MSD Response: - MSD_RESPONSE_FAILURE: Sequence failed
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* - MSD_RESPONSE_NO_ERROR: Sequence succeed
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*******************************************************************************/
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u8 MSD_WriteBlock(u8* pBuffer, u32 WriteAddr, u16 NumByteToWrite)
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{
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u32 i = 0;
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u8 rvalue = MSD_RESPONSE_FAILURE;
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/* MSD chip select low */
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MSD_CS_LOW();
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/* Send CMD24 (MSD_WRITE_BLOCK) to write multiple block */
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MSD_SendCmd(MSD_WRITE_BLOCK, WriteAddr, 0xFF);
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/* Check if the MSD acknowledged the write block command: R1 response (0x00: no errors) */
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if (!MSD_GetResponse(MSD_RESPONSE_NO_ERROR))
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{
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/* Send a dummy byte */
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MSD_WriteByte(DUMMY);
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/* Send the data token to signify the start of the data */
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MSD_WriteByte(0xFE);
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/* Write the block data to MSD : write count data by block */
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for (i = 0; i < NumByteToWrite; i++)
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{
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/* Send the pointed byte */
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MSD_WriteByte(*pBuffer);
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/* Point to the next location where the byte read will be saved */
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pBuffer++;
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}
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/* Put CRC bytes (not really needed by us, but required by MSD) */
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MSD_ReadByte();
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MSD_ReadByte();
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/* Read data response */
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if (MSD_GetDataResponse() == MSD_DATA_OK)
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{
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rvalue = MSD_RESPONSE_NO_ERROR;
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}
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}
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/* MSD chip select high */
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MSD_CS_HIGH();
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/* Send dummy byte: 8 Clock pulses of delay */
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MSD_WriteByte(DUMMY);
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/* Returns the reponse */
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return rvalue;
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}
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/*******************************************************************************
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* Function Name : MSD_ReadBlock
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* Description : Reads a block of data from the MSD.
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* Input : - pBuffer : pointer to the buffer that receives the data read
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* from the MSD.
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* - ReadAddr : MSD's internal address to read from.
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* - NumByteToRead : number of bytes to read from the MSD.
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* Output : None
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* Return : The MSD Response: - MSD_RESPONSE_FAILURE: Sequence failed
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* - MSD_RESPONSE_NO_ERROR: Sequence succeed
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*******************************************************************************/
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u8 MSD_ReadBlock(u8* pBuffer, u32 ReadAddr, u16 NumByteToRead)
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{
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u32 i = 0;
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u8 rvalue = MSD_RESPONSE_FAILURE;
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/* MSD chip select low */
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MSD_CS_LOW();
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/* Send CMD17 (MSD_READ_SINGLE_BLOCK) to read one block */
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MSD_SendCmd(MSD_READ_SINGLE_BLOCK, ReadAddr, 0xFF);
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/* Check if the MSD acknowledged the read block command: R1 response (0x00: no errors) */
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if (!MSD_GetResponse(MSD_RESPONSE_NO_ERROR))
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{
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/* Now look for the data token to signify the start of the data */
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if (!MSD_GetResponse(MSD_START_DATA_SINGLE_BLOCK_READ))
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{
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/* Read the MSD block data : read NumByteToRead data */
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for (i = 0; i < NumByteToRead; i++)
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{
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/* Save the received data */
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*pBuffer = MSD_ReadByte();
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/* Point to the next location where the byte read will be saved */
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pBuffer++;
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}
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/* Get CRC bytes (not really needed by us, but required by MSD) */
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MSD_ReadByte();
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MSD_ReadByte();
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/* Set response value to success */
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rvalue = MSD_RESPONSE_NO_ERROR;
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}
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}
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/* MSD chip select high */
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MSD_CS_HIGH();
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/* Send dummy byte: 8 Clock pulses of delay */
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MSD_WriteByte(DUMMY);
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/* Returns the reponse */
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return rvalue;
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}
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/*******************************************************************************
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* Function Name : MSD_WriteBuffer
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* Description : Writes many blocks on the MSD
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* Input : - pBuffer : pointer to the buffer containing the data to be
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* written on the MSD.
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* - WriteAddr : address to write on.
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* - NumByteToWrite: number of data to write
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* Output : None
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* Return : The MSD Response: - MSD_RESPONSE_FAILURE: Sequence failed
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* - MSD_RESPONSE_NO_ERROR: Sequence succeed
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*******************************************************************************/
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u8 MSD_WriteBuffer(u8* pBuffer, u32 WriteAddr, u32 NumByteToWrite)
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{
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u32 i = 0, NbrOfBlock = 0, Offset = 0;
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u8 rvalue = MSD_RESPONSE_FAILURE;
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/* Calculate number of blocks to write */
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NbrOfBlock = NumByteToWrite / BLOCK_SIZE;
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/* MSD chip select low */
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MSD_CS_LOW();
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/* Data transfer */
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while (NbrOfBlock --)
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{
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/* Send CMD24 (MSD_WRITE_BLOCK) to write blocks */
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MSD_SendCmd(MSD_WRITE_BLOCK, WriteAddr + Offset, 0xFF);
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/* Check if the MSD acknowledged the write block command: R1 response (0x00: no errors) */
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if (MSD_GetResponse(MSD_RESPONSE_NO_ERROR))
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{
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return MSD_RESPONSE_FAILURE;
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}
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/* Send dummy byte */
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MSD_WriteByte(DUMMY);
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/* Send the data token to signify the start of the data */
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MSD_WriteByte(MSD_START_DATA_SINGLE_BLOCK_WRITE);
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/* Write the block data to MSD : write count data by block */
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for (i = 0; i < BLOCK_SIZE; i++)
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{
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/* Send the pointed byte */
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MSD_WriteByte(*pBuffer);
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/* Point to the next location where the byte read will be saved */
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pBuffer++;
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}
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/* Set next write address */
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Offset += 512;
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/* Put CRC bytes (not really needed by us, but required by MSD) */
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MSD_ReadByte();
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MSD_ReadByte();
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/* Read data response */
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if (MSD_GetDataResponse() == MSD_DATA_OK)
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{
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/* Set response value to success */
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rvalue = MSD_RESPONSE_NO_ERROR;
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}
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else
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{
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/* Set response value to failure */
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rvalue = MSD_RESPONSE_FAILURE;
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}
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}
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/* MSD chip select high */
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MSD_CS_HIGH();
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/* Send dummy byte: 8 Clock pulses of delay */
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MSD_WriteByte(DUMMY);
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/* Returns the reponse */
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return rvalue;
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}
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/*******************************************************************************
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* Function Name : MSD_ReadBuffer
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* Description : Reads multiple block of data from the MSD.
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* Input : - pBuffer : pointer to the buffer that receives the data read
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* from the MSD.
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* - ReadAddr : MSD's internal address to read from.
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* - NumByteToRead : number of bytes to read from the MSD.
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* Output : None
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* Return : The MSD Response: - MSD_RESPONSE_FAILURE: Sequence failed
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* - MSD_RESPONSE_NO_ERROR: Sequence succeed
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*******************************************************************************/
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u8 MSD_ReadBuffer(u8* pBuffer, u32 ReadAddr, u32 NumByteToRead)
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{
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u32 i = 0, NbrOfBlock = 0, Offset = 0;
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u8 rvalue = MSD_RESPONSE_FAILURE;
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/* Calculate number of blocks to read */
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NbrOfBlock = NumByteToRead / BLOCK_SIZE;
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/* MSD chip select low */
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MSD_CS_LOW();
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/* Data transfer */
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while (NbrOfBlock --)
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{
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/* Send CMD17 (MSD_READ_SINGLE_BLOCK) to read one block */
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MSD_SendCmd (MSD_READ_SINGLE_BLOCK, ReadAddr + Offset, 0xFF);
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/* Check if the MSD acknowledged the read block command: R1 response (0x00: no errors) */
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if (MSD_GetResponse(MSD_RESPONSE_NO_ERROR))
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{
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return MSD_RESPONSE_FAILURE;
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}
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/* Now look for the data token to signify the start of the data */
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if (!MSD_GetResponse(MSD_START_DATA_SINGLE_BLOCK_READ))
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{
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/* Read the MSD block data : read NumByteToRead data */
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for (i = 0; i < BLOCK_SIZE; i++)
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{
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/* Read the pointed data */
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*pBuffer = MSD_ReadByte();
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/* Point to the next location where the byte read will be saved */
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pBuffer++;
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}
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/* Set next read address*/
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Offset += 512;
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/* get CRC bytes (not really needed by us, but required by MSD) */
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MSD_ReadByte();
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MSD_ReadByte();
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/* Set response value to success */
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rvalue = MSD_RESPONSE_NO_ERROR;
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}
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else
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{
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/* Set response value to failure */
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rvalue = MSD_RESPONSE_FAILURE;
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}
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}
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/* MSD chip select high */
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MSD_CS_HIGH();
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/* Send dummy byte: 8 Clock pulses of delay */
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MSD_WriteByte(DUMMY);
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/* Returns the reponse */
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return rvalue;
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}
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/*******************************************************************************
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* Function Name : MSD_GetCSDRegister
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* Description : Read the CSD card register.
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* Reading the contents of the CSD register in SPI mode
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* is a simple read-block transaction.
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* Input : - MSD_csd: pointer on an SCD register structure
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* Output : None
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* Return : The MSD Response: - MSD_RESPONSE_FAILURE: Sequence failed
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* - MSD_RESPONSE_NO_ERROR: Sequence succeed
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*******************************************************************************/
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u8 MSD_GetCSDRegister(sMSD_CSD* MSD_csd)
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{
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u32 i = 0;
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u8 rvalue = MSD_RESPONSE_FAILURE;
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u8 CSD_Tab[16];
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/* MSD chip select low */
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MSD_CS_LOW();
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/* Send CMD9 (CSD register) or CMD10(CSD register) */
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MSD_SendCmd(MSD_SEND_CSD, 0, 0xFF);
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/* Wait for response in the R1 format (0x00 is no errors) */
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if (!MSD_GetResponse(MSD_RESPONSE_NO_ERROR))
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{
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if (!MSD_GetResponse(MSD_START_DATA_SINGLE_BLOCK_READ))
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{
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for (i = 0; i < 16; i++)
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{
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/* Store CSD register value on CSD_Tab */
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CSD_Tab[i] = MSD_ReadByte();
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}
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}
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/* Get CRC bytes (not really needed by us, but required by MSD) */
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MSD_WriteByte(DUMMY);
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MSD_WriteByte(DUMMY);
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/* Set response value to success */
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rvalue = MSD_RESPONSE_NO_ERROR;
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}
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/* MSD chip select high */
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MSD_CS_HIGH();
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/* Send dummy byte: 8 Clock pulses of delay */
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MSD_WriteByte(DUMMY);
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/* Byte 0 */
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MSD_csd->CSDStruct = (CSD_Tab[0] & 0xC0) >> 6;
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MSD_csd->SysSpecVersion = (CSD_Tab[0] & 0x3C) >> 2;
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MSD_csd->Reserved1 = CSD_Tab[0] & 0x03;
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/* Byte 1 */
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MSD_csd->TAAC = CSD_Tab[1] ;
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/* Byte 2 */
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MSD_csd->NSAC = CSD_Tab[2];
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/* Byte 3 */
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MSD_csd->MaxBusClkFrec = CSD_Tab[3];
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/* Byte 4 */
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MSD_csd->CardComdClasses = CSD_Tab[4] << 4;
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/* Byte 5 */
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MSD_csd->CardComdClasses |= (CSD_Tab[5] & 0xF0) >> 4;
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MSD_csd->RdBlockLen = CSD_Tab[5] & 0x0F;
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/* Byte 6 */
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MSD_csd->PartBlockRead = (CSD_Tab[6] & 0x80) >> 7;
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MSD_csd->WrBlockMisalign = (CSD_Tab[6] & 0x40) >> 6;
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MSD_csd->RdBlockMisalign = (CSD_Tab[6] & 0x20) >> 5;
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MSD_csd->DSRImpl = (CSD_Tab[6] & 0x10) >> 4;
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MSD_csd->Reserved2 = 0; /* Reserved */
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MSD_csd->DeviceSize = (CSD_Tab[6] & 0x03) << 10;
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/* Byte 7 */
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MSD_csd->DeviceSize |= (CSD_Tab[7]) << 2;
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/* Byte 8 */
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MSD_csd->DeviceSize |= (CSD_Tab[8] & 0xC0) >> 6;
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MSD_csd->MaxRdCurrentVDDMin = (CSD_Tab[8] & 0x38) >> 3;
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MSD_csd->MaxRdCurrentVDDMax = (CSD_Tab[8] & 0x07);
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/* Byte 9 */
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MSD_csd->MaxWrCurrentVDDMin = (CSD_Tab[9] & 0xE0) >> 5;
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MSD_csd->MaxWrCurrentVDDMax = (CSD_Tab[9] & 0x1C) >> 2;
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MSD_csd->DeviceSizeMul = (CSD_Tab[9] & 0x03) << 1;
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/* Byte 10 */
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MSD_csd->DeviceSizeMul |= (CSD_Tab[10] & 0x80) >> 7;
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MSD_csd->EraseGrSize = (CSD_Tab[10] & 0x7C) >> 2;
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MSD_csd->EraseGrMul = (CSD_Tab[10] & 0x03) << 3;
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/* Byte 11 */
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MSD_csd->EraseGrMul |= (CSD_Tab[11] & 0xE0) >> 5;
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MSD_csd->WrProtectGrSize = (CSD_Tab[11] & 0x1F);
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/* Byte 12 */
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MSD_csd->WrProtectGrEnable = (CSD_Tab[12] & 0x80) >> 7;
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MSD_csd->ManDeflECC = (CSD_Tab[12] & 0x60) >> 5;
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MSD_csd->WrSpeedFact = (CSD_Tab[12] & 0x1C) >> 2;
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MSD_csd->MaxWrBlockLen = (CSD_Tab[12] & 0x03) << 2;
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/* Byte 13 */
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MSD_csd->MaxWrBlockLen |= (CSD_Tab[13] & 0xc0) >> 6;
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MSD_csd->WriteBlockPaPartial = (CSD_Tab[13] & 0x20) >> 5;
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MSD_csd->Reserved3 = 0;
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MSD_csd->ContentProtectAppli = (CSD_Tab[13] & 0x01);
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/* Byte 14 */
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MSD_csd->FileFormatGrouop = (CSD_Tab[14] & 0x80) >> 7;
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MSD_csd->CopyFlag = (CSD_Tab[14] & 0x40) >> 6;
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MSD_csd->PermWrProtect = (CSD_Tab[14] & 0x20) >> 5;
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MSD_csd->TempWrProtect = (CSD_Tab[14] & 0x10) >> 4;
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MSD_csd->FileFormat = (CSD_Tab[14] & 0x0C) >> 2;
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MSD_csd->ECC = (CSD_Tab[14] & 0x03);
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/* Byte 15 */
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MSD_csd->msd_CRC = (CSD_Tab[15] & 0xFE) >> 1;
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MSD_csd->Reserved4 = 1;
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/* Return the reponse */
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return rvalue;
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}
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/*******************************************************************************
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* Function Name : MSD_GetCIDRegister
|
||||
* Description : Read the CID card register.
|
||||
* Reading the contents of the CID register in SPI mode
|
||||
* is a simple read-block transaction.
|
||||
* Input : - MSD_cid: pointer on an CID register structure
|
||||
* Output : None
|
||||
* Return : The MSD Response: - MSD_RESPONSE_FAILURE: Sequence failed
|
||||
* - MSD_RESPONSE_NO_ERROR: Sequence succeed
|
||||
*******************************************************************************/
|
||||
u8 MSD_GetCIDRegister(sMSD_CID* MSD_cid)
|
||||
{
|
||||
u32 i = 0;
|
||||
u8 rvalue = MSD_RESPONSE_FAILURE;
|
||||
u8 CID_Tab[16];
|
||||
|
||||
/* MSD chip select low */
|
||||
MSD_CS_LOW();
|
||||
/* Send CMD10 (CID register) */
|
||||
MSD_SendCmd(MSD_SEND_CID, 0, 0xFF);
|
||||
|
||||
/* Wait for response in the R1 format (0x00 is no errors) */
|
||||
if (!MSD_GetResponse(MSD_RESPONSE_NO_ERROR))
|
||||
{
|
||||
if (!MSD_GetResponse(MSD_START_DATA_SINGLE_BLOCK_READ))
|
||||
{
|
||||
/* Store CID register value on CID_Tab */
|
||||
for (i = 0; i < 16; i++)
|
||||
{
|
||||
CID_Tab[i] = MSD_ReadByte();
|
||||
}
|
||||
}
|
||||
/* Get CRC bytes (not really needed by us, but required by MSD) */
|
||||
MSD_WriteByte(DUMMY);
|
||||
MSD_WriteByte(DUMMY);
|
||||
/* Set response value to success */
|
||||
rvalue = MSD_RESPONSE_NO_ERROR;
|
||||
}
|
||||
|
||||
/* MSD chip select high */
|
||||
MSD_CS_HIGH();
|
||||
/* Send dummy byte: 8 Clock pulses of delay */
|
||||
MSD_WriteByte(DUMMY);
|
||||
|
||||
/* Byte 0 */
|
||||
MSD_cid->ManufacturerID = CID_Tab[0];
|
||||
/* Byte 1 */
|
||||
MSD_cid->OEM_AppliID = CID_Tab[1] << 8;
|
||||
/* Byte 2 */
|
||||
MSD_cid->OEM_AppliID |= CID_Tab[2];
|
||||
/* Byte 3 */
|
||||
MSD_cid->ProdName1 = CID_Tab[3] << 24;
|
||||
/* Byte 4 */
|
||||
MSD_cid->ProdName1 |= CID_Tab[4] << 16;
|
||||
/* Byte 5 */
|
||||
MSD_cid->ProdName1 |= CID_Tab[5] << 8;
|
||||
/* Byte 6 */
|
||||
MSD_cid->ProdName1 |= CID_Tab[6];
|
||||
/* Byte 7 */
|
||||
MSD_cid->ProdName2 = CID_Tab[7];
|
||||
/* Byte 8 */
|
||||
MSD_cid->ProdRev = CID_Tab[8];
|
||||
/* Byte 9 */
|
||||
MSD_cid->ProdSN = CID_Tab[9] << 24;
|
||||
/* Byte 10 */
|
||||
MSD_cid->ProdSN |= CID_Tab[10] << 16;
|
||||
/* Byte 11 */
|
||||
MSD_cid->ProdSN |= CID_Tab[11] << 8;
|
||||
/* Byte 12 */
|
||||
MSD_cid->ProdSN |= CID_Tab[12];
|
||||
/* Byte 13 */
|
||||
MSD_cid->Reserved1 |= (CID_Tab[13] & 0xF0) >> 4;
|
||||
/* Byte 14 */
|
||||
MSD_cid->ManufactDate = (CID_Tab[13] & 0x0F) << 8;
|
||||
/* Byte 15 */
|
||||
MSD_cid->ManufactDate |= CID_Tab[14];
|
||||
/* Byte 16 */
|
||||
MSD_cid->msd_CRC = (CID_Tab[15] & 0xFE) >> 1;
|
||||
MSD_cid->Reserved2 = 1;
|
||||
|
||||
/* Return the reponse */
|
||||
return rvalue;
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Function Name : MSD_SendCmd
|
||||
* Description : Send 5 bytes command to the MSD card.
|
||||
* Input : - Cmd: the user expected command to send to MSD card
|
||||
* - Arg: the command argument
|
||||
* - Crc: the CRC
|
||||
* Output : None
|
||||
* Return : None
|
||||
*******************************************************************************/
|
||||
void MSD_SendCmd(u8 Cmd, u32 Arg, u8 Crc)
|
||||
{
|
||||
u32 i = 0x00;
|
||||
u8 Frame[6];
|
||||
|
||||
/* Construct byte1 */
|
||||
Frame[0] = (Cmd | 0x40);
|
||||
/* Construct byte2 */
|
||||
Frame[1] = (u8)(Arg >> 24);
|
||||
/* Construct byte3 */
|
||||
Frame[2] = (u8)(Arg >> 16);
|
||||
/* Construct byte4 */
|
||||
Frame[3] = (u8)(Arg >> 8);
|
||||
/* Construct byte5 */
|
||||
Frame[4] = (u8)(Arg);
|
||||
/* Construct CRC: byte6 */
|
||||
Frame[5] = (Crc);
|
||||
|
||||
/* Send the Cmd bytes */
|
||||
for (i = 0; i < 6; i++)
|
||||
{
|
||||
MSD_WriteByte(Frame[i]);
|
||||
}
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Function Name : MSD_GetDataResponse
|
||||
* Description : Get MSD card data response.
|
||||
* Input : None
|
||||
* Output : None
|
||||
* Return : The MSD status: Read data response xxx0<status>1
|
||||
* - status 010: Data accecpted
|
||||
* - status 101: Data rejected due to a crc error
|
||||
* - status 110: Data rejected due to a Write error.
|
||||
* - status 111: Data rejected due to other error.
|
||||
*******************************************************************************/
|
||||
u8 MSD_GetDataResponse(void)
|
||||
{
|
||||
u32 i = 0;
|
||||
u8 response, rvalue;
|
||||
|
||||
while (i <= 64)
|
||||
{
|
||||
/* Read resonse */
|
||||
response = MSD_ReadByte();
|
||||
/* Mask unused bits */
|
||||
response &= 0x1F;
|
||||
|
||||
switch (response)
|
||||
{
|
||||
case MSD_DATA_OK:
|
||||
{
|
||||
rvalue = MSD_DATA_OK;
|
||||
break;
|
||||
}
|
||||
|
||||
case MSD_DATA_CRC_ERROR:
|
||||
return MSD_DATA_CRC_ERROR;
|
||||
|
||||
case MSD_DATA_WRITE_ERROR:
|
||||
return MSD_DATA_WRITE_ERROR;
|
||||
|
||||
default:
|
||||
{
|
||||
rvalue = MSD_DATA_OTHER_ERROR;
|
||||
break;
|
||||
}
|
||||
}
|
||||
/* Exit loop in case of data ok */
|
||||
if (rvalue == MSD_DATA_OK)
|
||||
break;
|
||||
/* Increment loop counter */
|
||||
i++;
|
||||
}
|
||||
/* Wait null data */
|
||||
while (MSD_ReadByte() == 0);
|
||||
/* Return response */
|
||||
return response;
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Function Name : MSD_GetResponse
|
||||
* Description : Returns the MSD response.
|
||||
* Input : None
|
||||
* Output : None
|
||||
* Return : The MSD Response: - MSD_RESPONSE_FAILURE: Sequence failed
|
||||
* - MSD_RESPONSE_NO_ERROR: Sequence succeed
|
||||
*******************************************************************************/
|
||||
u8 MSD_GetResponse(u8 Response)
|
||||
{
|
||||
u32 Count = 0xFFF;
|
||||
|
||||
/* Check if response is got or a timeout is happen */
|
||||
while ((MSD_ReadByte() != Response) && Count)
|
||||
{
|
||||
Count--;
|
||||
}
|
||||
|
||||
if (Count == 0)
|
||||
{
|
||||
/* After time out */
|
||||
return MSD_RESPONSE_FAILURE;
|
||||
}
|
||||
else
|
||||
{
|
||||
/* Right response got */
|
||||
return MSD_RESPONSE_NO_ERROR;
|
||||
}
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Function Name : MSD_GetStatus
|
||||
* Description : Returns the MSD status.
|
||||
* Input : None
|
||||
* Output : None
|
||||
* Return : The MSD status.
|
||||
*******************************************************************************/
|
||||
u16 MSD_GetStatus(void)
|
||||
{
|
||||
u16 Status = 0;
|
||||
|
||||
/* MSD chip select low */
|
||||
MSD_CS_LOW();
|
||||
/* Send CMD13 (MSD_SEND_STATUS) to get MSD status */
|
||||
MSD_SendCmd(MSD_SEND_STATUS, 0, 0xFF);
|
||||
|
||||
Status = MSD_ReadByte();
|
||||
Status |= (u16)(MSD_ReadByte() << 8);
|
||||
|
||||
/* MSD chip select high */
|
||||
MSD_CS_HIGH();
|
||||
/* Send dummy byte 0xFF */
|
||||
MSD_WriteByte(DUMMY);
|
||||
|
||||
return Status;
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Function Name : MSD_GoIdleState
|
||||
* Description : Put MSD in Idle state.
|
||||
* Input : None
|
||||
* Output : None
|
||||
* Return : The MSD Response: - MSD_RESPONSE_FAILURE: Sequence failed
|
||||
* - MSD_RESPONSE_NO_ERROR: Sequence succeed
|
||||
*******************************************************************************/
|
||||
u8 MSD_GoIdleState(void)
|
||||
{
|
||||
int i;
|
||||
/* MSD chip select low */
|
||||
MSD_CS_LOW();
|
||||
/* Send CMD0 (GO_IDLE_STATE) to put MSD in SPI mode */
|
||||
MSD_SendCmd(MSD_GO_IDLE_STATE, 0, 0x95);
|
||||
|
||||
/* Wait for In Idle State Response (R1 Format) equal to 0x01 */
|
||||
if (MSD_GetResponse(MSD_IN_IDLE_STATE))
|
||||
{
|
||||
/* No Idle State Response: return response failue */
|
||||
return MSD_RESPONSE_FAILURE;
|
||||
}
|
||||
/*----------Activates the card initialization process-----------*/
|
||||
do
|
||||
{
|
||||
/* MSD chip select high */
|
||||
MSD_CS_HIGH();
|
||||
/* Send Dummy byte 0xFF */
|
||||
MSD_WriteByte(DUMMY);
|
||||
for (i = 0; i < 0xfff; i++);
|
||||
|
||||
/* MSD chip select low */
|
||||
MSD_CS_LOW();
|
||||
for (i = 0; i < 0xfff; i++);
|
||||
|
||||
/* Send CMD1 (Activates the card process) until response equal to 0x0 */
|
||||
MSD_SendCmd(MSD_SEND_OP_COND, 0, 0xFF);
|
||||
/* Wait for no error Response (R1 Format) equal to 0x00 */
|
||||
}
|
||||
while (MSD_GetResponse(MSD_RESPONSE_NO_ERROR));
|
||||
|
||||
/* MSD chip select high */
|
||||
MSD_CS_HIGH();
|
||||
/* Send dummy byte 0xFF */
|
||||
MSD_WriteByte(DUMMY);
|
||||
|
||||
return MSD_RESPONSE_NO_ERROR;
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Function Name : MSD_WriteByte
|
||||
* Description : Write a byte on the MSD.
|
||||
* Input : Data: byte to send.
|
||||
* Output : None
|
||||
* Return : None.
|
||||
*******************************************************************************/
|
||||
u8 MSD_WriteByte(u8 Data)
|
||||
{
|
||||
/* Wait until the transmit buffer is empty */
|
||||
while (SPI_I2S_GetFlagStatus(MSD_SPI, SPI_I2S_FLAG_TXE) == RESET);
|
||||
/* Send the byte */
|
||||
SPI_I2S_SendData(MSD_SPI, Data);
|
||||
|
||||
/* Get the received data */
|
||||
Data = SPI_I2S_ReceiveData(MSD_SPI);
|
||||
|
||||
return Data;
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Function Name : MSD_ReadByte
|
||||
* Description : Read a byte from the MSD.
|
||||
* Input : None.
|
||||
* Output : None
|
||||
* Return : The received byte.
|
||||
*******************************************************************************/
|
||||
u8 MSD_ReadByte(void)
|
||||
{
|
||||
u8 Data = 0;
|
||||
|
||||
/* Wait until the transmit buffer is empty */
|
||||
while (SPI_I2S_GetFlagStatus(MSD_SPI, SPI_I2S_FLAG_TXE) == RESET);
|
||||
/* Send the byte */
|
||||
SPI_I2S_SendData(MSD_SPI, DUMMY);
|
||||
|
||||
/* Wait until a data is received */
|
||||
while (SPI_I2S_GetFlagStatus(MSD_SPI, SPI_I2S_FLAG_RXNE) == RESET);
|
||||
/* Get the received data */
|
||||
Data = SPI_I2S_ReceiveData(MSD_SPI);
|
||||
|
||||
/* Return the shifted data */
|
||||
return Data;
|
||||
}
|
||||
|
||||
/*******************************************************************************
|
||||
* Function Name : SPI_Config
|
||||
* Description : Initializes the SPI and CS pins.
|
||||
* Input : None
|
||||
* Output : None
|
||||
* Return : None
|
||||
*******************************************************************************/
|
||||
void SPI_Config(void)
|
||||
{
|
||||
uint32_t delay;
|
||||
GPIO_InitTypeDef GPIO_InitStructure;
|
||||
SPI_InitTypeDef SPI_InitStructure;
|
||||
|
||||
/* GPIOA and GPIOC Periph clock enable */
|
||||
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOC | RCC_APB2Periph_AFIO, ENABLE);
|
||||
/* SPI Periph clock enable */
|
||||
RCC_APB2PeriphClockCmd(MSD_RCC_SPI, ENABLE);
|
||||
|
||||
/* Configure SPI pins: SCK, MISO and MOSI */
|
||||
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6 | GPIO_Pin_7;
|
||||
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
|
||||
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
|
||||
GPIO_Init(GPIOA, &GPIO_InitStructure);
|
||||
|
||||
/* Configure PA4 pin: CS pin, PC4 : SD Power */
|
||||
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
|
||||
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
|
||||
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
|
||||
GPIO_Init(GPIOA, &GPIO_InitStructure);
|
||||
|
||||
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_4;
|
||||
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
|
||||
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
|
||||
GPIO_Init(GPIOC, &GPIO_InitStructure);
|
||||
|
||||
/* SPI Config */
|
||||
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
|
||||
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
|
||||
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
|
||||
SPI_InitStructure.SPI_CPOL = SPI_CPOL_High;
|
||||
SPI_InitStructure.SPI_CPHA = SPI_CPHA_2Edge;
|
||||
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
|
||||
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_4;
|
||||
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
|
||||
SPI_InitStructure.SPI_CRCPolynomial = 7;
|
||||
SPI_Init(MSD_SPI, &SPI_InitStructure);
|
||||
|
||||
/* SPI enable */
|
||||
SPI_Cmd(MSD_SPI, ENABLE);
|
||||
|
||||
/* active SD card */
|
||||
GPIO_ResetBits(GPIOC, GPIO_Pin_4);
|
||||
for (delay = 0; delay < 0xfffff; delay ++);
|
||||
}
|
||||
|
||||
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/
|
||||
|
||||
/*
|
||||
* RT-Thread SD Card Driver
|
||||
* 2009-04-17 Bernard first version
|
||||
* 2010-07-15 Modify read/write according new block driver interface
|
||||
*/
|
||||
#include <rtthread.h>
|
||||
#include <dfs_fs.h>
|
||||
|
||||
static struct rt_device sdcard_device;
|
||||
static struct dfs_partition part;
|
||||
|
||||
#define SECTOR_SIZE 512
|
||||
|
||||
/* RT-Thread Device Driver Interface */
|
||||
static rt_err_t rt_msd_init(rt_device_t dev)
|
||||
{
|
||||
sMSD_CSD MSD_csd;
|
||||
MSD_GetCSDRegister(&MSD_csd);
|
||||
|
||||
return RT_EOK;
|
||||
}
|
||||
|
||||
static rt_err_t rt_msd_open(rt_device_t dev, rt_uint16_t oflag)
|
||||
{
|
||||
return RT_EOK;
|
||||
}
|
||||
|
||||
static rt_err_t rt_msd_close(rt_device_t dev)
|
||||
{
|
||||
return RT_EOK;
|
||||
}
|
||||
|
||||
static rt_size_t rt_msd_read(rt_device_t dev, rt_off_t pos, void* buffer, rt_size_t size)
|
||||
{
|
||||
rt_uint8_t status;
|
||||
rt_uint32_t i;
|
||||
|
||||
status = MSD_RESPONSE_NO_ERROR;
|
||||
// rt_kprintf("read: 0x%x, size %d\n", pos, size);
|
||||
|
||||
/* read all sectors */
|
||||
for (i = 0; i < size; i ++)
|
||||
{
|
||||
status = MSD_ReadBlock((rt_uint8_t*)((rt_uint8_t*)buffer + i * SECTOR_SIZE),
|
||||
(part.offset + pos + i)* SECTOR_SIZE, SECTOR_SIZE);
|
||||
if (status != MSD_RESPONSE_NO_ERROR)
|
||||
{
|
||||
rt_kprintf("sd card read failed\n");
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
if (status == MSD_RESPONSE_NO_ERROR) return size;
|
||||
|
||||
rt_kprintf("read failed: %d\n", status);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static rt_size_t rt_msd_write (rt_device_t dev, rt_off_t pos, const void* buffer, rt_size_t size)
|
||||
{
|
||||
rt_uint8_t status;
|
||||
rt_uint32_t i;
|
||||
|
||||
status = MSD_RESPONSE_NO_ERROR;
|
||||
// rt_kprintf("write: 0x%x, size %d\n", pos, size);
|
||||
|
||||
/* write all sectors */
|
||||
for (i = 0; i < size; i ++)
|
||||
{
|
||||
status = MSD_WriteBuffer((rt_uint8_t*)((rt_uint8_t*)buffer + i * SECTOR_SIZE),
|
||||
(part.offset + pos + i)* SECTOR_SIZE, SECTOR_SIZE);
|
||||
if (status != MSD_RESPONSE_NO_ERROR)
|
||||
{
|
||||
rt_kprintf("sd card write failed\n");
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
if (status == MSD_RESPONSE_NO_ERROR) return size;
|
||||
|
||||
rt_kprintf("write failed: %d\n", status);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static rt_err_t rt_msd_control(rt_device_t dev, rt_uint8_t cmd, void *args)
|
||||
{
|
||||
RT_ASSERT(dev != RT_NULL);
|
||||
|
||||
return RT_EOK;
|
||||
}
|
||||
|
||||
void rt_hw_msd_init()
|
||||
{
|
||||
if (MSD_Init() == MSD_RESPONSE_NO_ERROR)
|
||||
{
|
||||
rt_uint8_t status;
|
||||
rt_uint8_t *sector;
|
||||
|
||||
/* register sdcard device */
|
||||
sdcard_device.init = rt_msd_init;
|
||||
sdcard_device.open = rt_msd_open;
|
||||
sdcard_device.close = rt_msd_close;
|
||||
sdcard_device.read = rt_msd_read;
|
||||
sdcard_device.write = rt_msd_write;
|
||||
sdcard_device.control = rt_msd_control;
|
||||
|
||||
/* no private */
|
||||
sdcard_device.user_data = RT_NULL;
|
||||
/* get the first sector to read partition table */
|
||||
sector = (rt_uint8_t*) rt_malloc (512);
|
||||
if (sector == RT_NULL)
|
||||
{
|
||||
rt_kprintf("allocate partition sector buffer failed\n");
|
||||
return;
|
||||
}
|
||||
|
||||
status = MSD_ReadBlock(sector, 0, 512);
|
||||
if (status == MSD_RESPONSE_NO_ERROR)
|
||||
{
|
||||
/* get the first partition */
|
||||
status = dfs_filesystem_get_partition(&part, sector, 0);
|
||||
if (status != RT_EOK)
|
||||
{
|
||||
/* there is no partition table */
|
||||
part.offset = 0;
|
||||
part.size = 0;
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* there is no partition table */
|
||||
part.offset = 0;
|
||||
part.size = 0;
|
||||
}
|
||||
|
||||
/* release sector buffer */
|
||||
rt_free(sector);
|
||||
|
||||
rt_device_register(&sdcard_device, "sd0",
|
||||
RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_REMOVABLE | RT_DEVICE_FLAG_STANDALONE);
|
||||
}
|
||||
else
|
||||
{
|
||||
rt_kprintf("sdcard init failed\n");
|
||||
}
|
||||
}
|
|
@ -0,0 +1,173 @@
|
|||
/******************** (C) COPYRIGHT 2008 STMicroelectronics ********************
|
||||
* File Name : msd.h
|
||||
* Author : MCD Application Team
|
||||
* Version : V2.1
|
||||
* Date : 05/30/2008
|
||||
* Description : Header for msd.c file.
|
||||
********************************************************************************
|
||||
* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
|
||||
* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME.
|
||||
* AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY DIRECT,
|
||||
* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE
|
||||
* CONTENT OF SUCH SOFTWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING
|
||||
* INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
|
||||
* FOR MORE INFORMATION PLEASE CAREFULLY READ THE LICENSE AGREEMENT FILE LOCATED
|
||||
* IN THE ROOT DIRECTORY OF THIS FIRMWARE PACKAGE.
|
||||
*******************************************************************************/
|
||||
|
||||
/* Define to prevent recursive inclusion -------------------------------------*/
|
||||
#ifndef __MSD_H
|
||||
#define __MSD_H
|
||||
|
||||
/* Includes ------------------------------------------------------------------*/
|
||||
#include <stm32f10x.h>
|
||||
|
||||
/* Private define ------------------------------------------------------------*/
|
||||
/* Block Size */
|
||||
#define BLOCK_SIZE 512
|
||||
|
||||
/* Dummy byte */
|
||||
#define DUMMY 0xFF
|
||||
|
||||
/* Start Data tokens */
|
||||
/* Tokens (necessary because at nop/idle (and CS active) only 0xff is on the data/command line) */
|
||||
#define MSD_START_DATA_SINGLE_BLOCK_READ 0xFE /* Data token start byte, Start Single Block Read */
|
||||
#define MSD_START_DATA_MULTIPLE_BLOCK_READ 0xFE /* Data token start byte, Start Multiple Block Read */
|
||||
#define MSD_START_DATA_SINGLE_BLOCK_WRITE 0xFE /* Data token start byte, Start Single Block Write */
|
||||
#define MSD_START_DATA_MULTIPLE_BLOCK_WRITE 0xFD /* Data token start byte, Start Multiple Block Write */
|
||||
#define MSD_STOP_DATA_MULTIPLE_BLOCK_WRITE 0xFD /* Data toke stop byte, Stop Multiple Block Write */
|
||||
|
||||
/* MSD functions return */
|
||||
#define MSD_SUCCESS 0x00
|
||||
#define MSD_FAIL 0xFF
|
||||
|
||||
/* MSD reponses and error flags */
|
||||
#define MSD_RESPONSE_NO_ERROR 0x00
|
||||
#define MSD_IN_IDLE_STATE 0x01
|
||||
#define MSD_ERASE_RESET 0x02
|
||||
#define MSD_ILLEGAL_COMMAND 0x04
|
||||
#define MSD_COM_CRC_ERROR 0x08
|
||||
#define MSD_ERASE_SEQUENCE_ERROR 0x10
|
||||
#define MSD_ADDRESS_ERROR 0x20
|
||||
#define MSD_PARAMETER_ERROR 0x40
|
||||
#define MSD_RESPONSE_FAILURE 0xFF
|
||||
|
||||
/* Data response error */
|
||||
#define MSD_DATA_OK 0x05
|
||||
#define MSD_DATA_CRC_ERROR 0x0B
|
||||
#define MSD_DATA_WRITE_ERROR 0x0D
|
||||
#define MSD_DATA_OTHER_ERROR 0xFF
|
||||
|
||||
/* Commands: CMDxx = CMD-number | 0x40 */
|
||||
#define MSD_GO_IDLE_STATE 0 /* CMD0=0x40 */
|
||||
#define MSD_SEND_OP_COND 1 /* CMD1=0x41 */
|
||||
#define MSD_SEND_CSD 9 /* CMD9=0x49 */
|
||||
#define MSD_SEND_CID 10 /* CMD10=0x4A */
|
||||
#define MSD_STOP_TRANSMISSION 12 /* CMD12=0x4C */
|
||||
#define MSD_SEND_STATUS 13 /* CMD13=0x4D */
|
||||
#define MSD_SET_BLOCKLEN 16 /* CMD16=0x50 */
|
||||
#define MSD_READ_SINGLE_BLOCK 17 /* CMD17=0x51 */
|
||||
#define MSD_READ_MULTIPLE_BLOCK 18 /* CMD18=0x52 */
|
||||
#define MSD_SET_BLOCK_COUNT 23 /* CMD23=0x57 */
|
||||
#define MSD_WRITE_BLOCK 24 /* CMD24=0x58 */
|
||||
#define MSD_WRITE_MULTIPLE_BLOCK 25 /* CMD25=0x59 */
|
||||
#define MSD_PROGRAM_CSD 27 /* CMD27=0x5B */
|
||||
#define MSD_SET_WRITE_PROT 28 /* CMD28=0x5C */
|
||||
#define MSD_CLR_WRITE_PROT 29 /* CMD29=0x5D */
|
||||
#define MSD_SEND_WRITE_PROT 30 /* CMD30=0x5E */
|
||||
#define MSD_TAG_SECTOR_START 32 /* CMD32=0x60 */
|
||||
#define MSD_TAG_SECTOR_END 33 /* CMD33=0x61 */
|
||||
#define MSD_UNTAG_SECTOR 34 /* CMD34=0x62 */
|
||||
#define MSD_TAG_ERASE_GROUP_START 35 /* CMD35=0x63 */
|
||||
#define MSD_TAG_ERASE_GROUP_END 36 /* CMD36=0x64 */
|
||||
#define MSD_UNTAG_ERASE_GROUP 37 /* CMD37=0x65 */
|
||||
#define MSD_ERASE 38 /* CMD38=0x66 */
|
||||
#define MSD_READ_OCR 39 /* CMD39=0x67 */
|
||||
#define MSD_CRC_ON_OFF 40 /* CMD40=0x68 */
|
||||
|
||||
/* Exported types ------------------------------------------------------------*/
|
||||
/* Private variables ---------------------------------------------------------*/
|
||||
typedef struct _MSD_CSD /*Card Specific Data*/
|
||||
{
|
||||
vu8 CSDStruct; /* CSD structure */
|
||||
vu8 SysSpecVersion; /* System specification version */
|
||||
vu8 Reserved1; /* Reserved */
|
||||
vu8 TAAC; /* Data read access-time 1 */
|
||||
vu8 NSAC; /* Data read access-time 2 in CLK cycles */
|
||||
vu8 MaxBusClkFrec; /* Max. bus clock frequency */
|
||||
vu16 CardComdClasses; /* Card command classes */
|
||||
vu8 RdBlockLen; /* Max. read data block length */
|
||||
vu8 PartBlockRead; /* Partial blocks for read allowed */
|
||||
vu8 WrBlockMisalign; /* Write block misalignment */
|
||||
vu8 RdBlockMisalign; /* Read block misalignment */
|
||||
vu8 DSRImpl; /* DSR implemented */
|
||||
vu8 Reserved2; /* Reserved */
|
||||
vu16 DeviceSize; /* Device Size */
|
||||
vu8 MaxRdCurrentVDDMin; /* Max. read current @ VDD min */
|
||||
vu8 MaxRdCurrentVDDMax; /* Max. read current @ VDD max */
|
||||
vu8 MaxWrCurrentVDDMin; /* Max. write current @ VDD min */
|
||||
vu8 MaxWrCurrentVDDMax; /* Max. write current @ VDD max */
|
||||
vu8 DeviceSizeMul; /* Device size multiplier */
|
||||
vu8 EraseGrSize; /* Erase group size */
|
||||
vu8 EraseGrMul; /* Erase group size multiplier */
|
||||
vu8 WrProtectGrSize; /* Write protect group size */
|
||||
vu8 WrProtectGrEnable; /* Write protect group enable */
|
||||
vu8 ManDeflECC; /* Manufacturer default ECC */
|
||||
vu8 WrSpeedFact; /* Write speed factor */
|
||||
vu8 MaxWrBlockLen; /* Max. write data block length */
|
||||
vu8 WriteBlockPaPartial; /* Partial blocks for write allowed */
|
||||
vu8 Reserved3; /* Reserded */
|
||||
vu8 ContentProtectAppli; /* Content protection application */
|
||||
vu8 FileFormatGrouop; /* File format group */
|
||||
vu8 CopyFlag; /* Copy flag (OTP) */
|
||||
vu8 PermWrProtect; /* Permanent write protection */
|
||||
vu8 TempWrProtect; /* Temporary write protection */
|
||||
vu8 FileFormat; /* File Format */
|
||||
vu8 ECC; /* ECC code */
|
||||
vu8 msd_CRC; /* CRC */
|
||||
vu8 Reserved4; /* always 1*/
|
||||
}
|
||||
sMSD_CSD;
|
||||
|
||||
typedef struct _MSD_CID /*Card Identification Data*/
|
||||
{
|
||||
vu8 ManufacturerID; /* ManufacturerID */
|
||||
vu16 OEM_AppliID; /* OEM/Application ID */
|
||||
vu32 ProdName1; /* Product Name part1 */
|
||||
vu8 ProdName2; /* Product Name part2*/
|
||||
vu8 ProdRev; /* Product Revision */
|
||||
vu32 ProdSN; /* Product Serial Number */
|
||||
vu8 Reserved1; /* Reserved1 */
|
||||
vu16 ManufactDate; /* Manufacturing Date */
|
||||
vu8 msd_CRC; /* CRC */
|
||||
vu8 Reserved2; /* always 1*/
|
||||
}
|
||||
sMSD_CID;
|
||||
|
||||
/* Exported constants --------------------------------------------------------*/
|
||||
/* Exported macro ------------------------------------------------------------*/
|
||||
/* Exported functions ------------------------------------------------------- */
|
||||
|
||||
/*----- High layer function -----*/
|
||||
u8 MSD_Init(void);
|
||||
u8 MSD_WriteBlock(u8* pBuffer, u32 WriteAddr, u16 NumByteToWrite);
|
||||
u8 MSD_ReadBlock(u8* pBuffer, u32 ReadAddr, u16 NumByteToRead);
|
||||
u8 MSD_WriteBuffer(u8* pBuffer, u32 WriteAddr, u32 NumByteToWrite);
|
||||
u8 MSD_ReadBuffer(u8* pBuffer, u32 ReadAddr, u32 NumByteToRead);
|
||||
u8 MSD_GetCSDRegister(sMSD_CSD* MSD_csd);
|
||||
u8 MSD_GetCIDRegister(sMSD_CID* MSD_cid);
|
||||
|
||||
/*----- Medium layer function -----*/
|
||||
void MSD_SendCmd(u8 Cmd, u32 Arg, u8 Crc);
|
||||
u8 MSD_GetResponse(u8 Response);
|
||||
u8 MSD_GetDataResponse(void);
|
||||
u8 MSD_GoIdleState(void);
|
||||
u16 MSD_GetStatus(void);
|
||||
|
||||
/*----- Low layer function -----*/
|
||||
u8 MSD_WriteByte(u8 byte);
|
||||
u8 MSD_ReadByte(void);
|
||||
|
||||
#endif /* __MSD_H */
|
||||
|
||||
/******************* (C) COPYRIGHT 2008 STMicroelectronics *****END OF FILE****/
|
Loading…
Reference in New Issue