mirror of
https://github.com/paparazzi/paparazzi.git
synced 2026-05-09 14:18:00 +08:00
[sdcard] new: sdcard spi interface
This commit is contained in:
bartslinger
@@ -672,7 +672,7 @@ LAYOUT_FILE =
|
||||
# search path. Do not use file names with spaces, bibtex cannot handle them. See
|
||||
# also \cite for info how to create references.
|
||||
|
||||
CITE_BIB_FILES =
|
||||
CITE_BIB_FILES = doc/citations.bib
|
||||
|
||||
#---------------------------------------------------------------------------
|
||||
# Configuration options related to warning and progress messages
|
||||
@@ -844,7 +844,7 @@ EXAMPLE_RECURSIVE = NO
|
||||
# that contain images that are to be included in the documentation (see the
|
||||
# \image command).
|
||||
|
||||
IMAGE_PATH =
|
||||
IMAGE_PATH = doc/images
|
||||
|
||||
# The INPUT_FILTER tag can be used to specify a program that doxygen should
|
||||
# invoke to filter for each input file. Doxygen will invoke the filter program
|
||||
|
||||
@@ -0,0 +1,7 @@
|
||||
http://elasticsheep.com/2010/01/reading-an-sd-card-with-an-atmega168/
|
||||
|
||||
@misc{sdcard_pinout,
|
||||
title = {SDCard pinout},
|
||||
howpublished = {\url{http://elasticsheep.com/2010/01/reading-an-sd-card-with-an-atmega168/}},
|
||||
note = {Accessed: 2015-04-16}
|
||||
}
|
||||
Binary file not shown.
|
After Width: | Height: | Size: 58 KiB |
Binary file not shown.
|
After Width: | Height: | Size: 20 KiB |
File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,114 @@
|
||||
/*
|
||||
* Copyright (C) 2015 Bart Slinger <bartslinger@gmail.com>
|
||||
*
|
||||
* This file is part of paparazzi.
|
||||
*
|
||||
* paparazzi is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License as published by
|
||||
* the Free Software Foundation; either version 2, or (at your option)
|
||||
* any later version.
|
||||
*
|
||||
* paparazzi is distributed in the hope that it will be useful,
|
||||
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
* GNU General Public License for more details.
|
||||
*
|
||||
* You should have received a copy of the GNU General Public License
|
||||
* along with paparazzi; see the file COPYING. If not, write to
|
||||
* the Free Software Foundation, 59 Temple Place - Suite 330,
|
||||
* Boston, MA 02111-1307, USA.
|
||||
*
|
||||
*/
|
||||
|
||||
/** @file peripherals/sdcard_spi.h
|
||||
* @brief Interface for reading and writing blocks of data to and from an SD card directly over SPI.
|
||||
*/
|
||||
|
||||
#ifndef SDCARD_H_
|
||||
#define SDCARD_H_
|
||||
|
||||
#include "std.h"
|
||||
#include "mcu_periph/spi.h"
|
||||
|
||||
/** SDCard Callback function.
|
||||
* If not NULL (or 0), call function
|
||||
*/
|
||||
typedef void (*SDCardCallback)(void);
|
||||
|
||||
#define SD_BLOCK_SIZE 512
|
||||
|
||||
enum SdResponseType {
|
||||
SdResponseNone,
|
||||
SdResponseR1,
|
||||
SdResponseR3,
|
||||
SdResponseR7
|
||||
};
|
||||
|
||||
enum SDCardType {
|
||||
SDCardType_Unknown,
|
||||
SDCardType_MmcV3,
|
||||
SDCardType_SdV1,
|
||||
SDCardType_SdV2byte,
|
||||
SDCardType_SdV2block
|
||||
};
|
||||
|
||||
enum SDCardStatus {
|
||||
SDCard_UnInit, /**< SDCard is not initialized */
|
||||
SDCard_Error, /**< An error has occured, sending debug message */
|
||||
SDCard_Idle, /**< Initialization sequence succesful */
|
||||
SDCard_Busy, /**< SDCard is busy with internal process */
|
||||
SDCard_BeforeDummyClock, /**< About to send dummy clock cycles to initialize spi mode */
|
||||
SDCard_SendingDummyClock, /**< Busy sending dummy clock cycles */
|
||||
SDCard_SendingCMD0, /**< Busy sending CMD0 */
|
||||
SDCard_ReadingCMD0Resp, /**< Reading R1 response to CMD0 byte by byte */
|
||||
SDCard_SendingCMD8, /**< Busy sending CMD8 */
|
||||
SDCard_ReadingCMD8Resp, /**< Reading R7 response to CMD8 byte by byte */
|
||||
SDCard_ReadingCMD8Parameter, /**< Reading the 32-bit parameter after receiving 0x01 */
|
||||
SDCard_SendingACMD41v2, /**< Busy sending ACMD41 */
|
||||
SDCard_ReadingACMD41v2Resp, /**< Reading R1 response to ACMD41 byte by byte */
|
||||
SDCard_SendingCMD58, /**< Busy sending CMD58 */
|
||||
SDCard_ReadingCMD58Resp, /**< Reading R3 response to CMD58 byte by byte */
|
||||
SDCard_ReadingCMD58Parameter, /**< Reading the 32-bit parameter after receiving 0x00 from CMD58 */
|
||||
SDCard_SendingCMD16, /**< Busy sending CMD16 */
|
||||
SDCard_ReadingCMD16Resp, /**< Reading R1 response to CMD16 byte by byte */
|
||||
SDCard_SendingCMD24, /**< Busy sending CMD24 */
|
||||
SDCard_ReadingCMD24Resp, /**< Reading R1 response to CMD24 byte by byte */
|
||||
SDCard_BeforeSendingDataBlock, /**< Start data block transfer */
|
||||
SDCard_SendingDataBlock, /**< Busy sending data block */
|
||||
SDCard_SendingCMD17, /**< Busy sending CMD17 (block read request) */
|
||||
SDCard_ReadingCMD17Resp, /**< Reading R1 response to CMD17 byte by byte */
|
||||
SDCard_WaitingForDataToken, /**< Reading a byte each period until there is a data token or error */
|
||||
SDCard_ReadingDataBlock, /**< Busy reading data block */
|
||||
SDCard_SendingCMD25, /**< Busy sending CMD25 (multiwrite start command) */
|
||||
SDCard_ReadingCMD25Resp, /**< Reading R1 response to CMD25 byte by byte */
|
||||
SDCard_MultiWriteIdle, /**< CMD25 complete, ready to sent blocks */
|
||||
SDCard_MultiWriteWriting, /**< Busy with the SPI transfer in multiwrite */
|
||||
SDCard_MultiWriteBusy, /**< Busy flag after sending data block in multiwrite */
|
||||
SDCard_MultiWriteStopping, /**< Busy sending the stop token */
|
||||
};
|
||||
|
||||
struct SDCard {
|
||||
struct spi_periph *spi_p; /**< The SPI peripheral for the connection */
|
||||
struct spi_transaction spi_t; /**< The SPI transaction used for the writing and reading of registers */
|
||||
volatile enum SDCardStatus status; /**< The status of the SD card */
|
||||
uint8_t input_buf[SD_BLOCK_SIZE + 10]; /**< The input buffer for the SPI transaction */
|
||||
uint8_t output_buf[SD_BLOCK_SIZE + 10]; /**< The output buffer for the SPI transaction */
|
||||
uint8_t response_counter; /**< Response counter used at various locations */
|
||||
uint32_t timeout_counter; /**< Timeout counter used for initialization checks with ACMD41 */
|
||||
enum SDCardType card_type; /**< Type of SDCard */
|
||||
SDCardCallback read_callback; /**< Callback to call when read operation finishes */
|
||||
};
|
||||
|
||||
extern struct SDCard sdcard1;
|
||||
|
||||
/* Public functions */
|
||||
extern void sdcard_spi_init(struct SDCard *sdcard, struct spi_periph *spi_p, const uint8_t slave_idx);
|
||||
extern void sdcard_spi_periodic(struct SDCard *sdcard);
|
||||
extern void sdcard_spi_write_block(struct SDCard *sdcard, uint32_t addr);
|
||||
extern void sdcard_spi_read_block(struct SDCard *sdcard, uint32_t addr, SDCardCallback callback);
|
||||
extern void sdcard_spi_multiwrite_start(struct SDCard *sdcard, uint32_t addr);
|
||||
extern void sdcard_spi_multiwrite_next(struct SDCard *sdcard);
|
||||
extern void sdcard_spi_multiwrite_stop(struct SDCard *sdcard);
|
||||
|
||||
#endif // SDCARD_H_
|
||||
|
||||
Reference in New Issue
Block a user