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added a simple driver for using SD devices through the SPI.

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nvt-se 2009-09-22 15:20:51 +00:00
parent a71cd04144
commit ea56edc5c2
7 changed files with 765 additions and 3 deletions
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platform/msb430/dev/sd.h Normal file
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/*
* Copyright (c) 2009, Swedish Institute of Computer Science
* 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. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS 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.
*
* This file is part of the Contiki operating system.
*
*/
/**
* \file
* SD driver interface.
* \author
* Nicolas Tsiftes <nvt@sics.se>
*/
#ifndef SD_H
#define SD_H
#include "sd-arch.h"
#define SD_BLOCK_SIZE 512
#define SD_REGISTER_SIZE 16
/* API return codes. */
#define SD_OK 1
#define SD_INIT_ERROR_NO_CARD -1
#define SD_INIT_ERROR_ARCH -2
#define SD_INIT_ERROR_NO_IF_COND -3
#define SD_WRITE_ERROR_NO_CMD_RESPONSE -4
#define SD_WRITE_ERROR_NO_BLOCK_RESPONSE -5
#define SD_WRITE_ERROR_PROGRAMMING -6
#define SD_WRITE_ERROR_TOKEN -7
#define SD_WRITE_ERROR_NO_TOKEN -8
#define SD_READ_ERROR_NO_CMD_RESPONSE -9
#define SD_READ_ERROR_INVALID_SIZE -10
#define SD_READ_ERROR_TOKEN -11
#define SD_READ_ERROR_NO_TOKEN -12
/* Type definition. */
typedef uint32_t sd_offset_t;
/* API */
int sd_initialize(void);
int sd_write(sd_offset_t, char *, unsigned);
int sd_read(sd_offset_t, char *, unsigned);
int sd_write_block(sd_offset_t, char *);
int sd_read_block(sd_offset_t, char *);
unsigned sd_get_block_size(void);
sd_offset_t sd_get_capacity(void);
char *sd_error_string(int);
#endif /* !SD_H */