191 lines
7.0 KiB
C
191 lines
7.0 KiB
C
/*
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ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
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2011 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file sdc.h
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* @brief SDC Driver macros and structures.
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*
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* @addtogroup SDC
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* @{
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*/
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#ifndef _SDC_H_
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#define _SDC_H_
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#if HAL_USE_SDC || defined(__DOXYGEN__)
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/*===========================================================================*/
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/* Driver constants. */
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/*===========================================================================*/
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#define SDC_BLOCK_SIZE 512 /**< Fixed block size. */
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/**
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* @brief Fixed pattern for CMD8.
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*/
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#define SDC_CMD8_PATTERN 0x000001AA
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#define SDC_MODE_CARDTYPE_MASK 0xF /**< @brief Card type mask. */
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#define SDC_MODE_CARDTYPE_SDV11 0 /**< @brief Card is SD V1.1.*/
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#define SDC_MODE_CARDTYPE_SDV20 1 /**< @brief Card is SD V2.0.*/
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#define SDC_MODE_CARDTYPE_MMC 2 /**< @brief Card is MMC. */
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#define SDC_MODE_HIGH_CAPACITY 0x10 /**< @brief High cap.card. */
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/**
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* @brief Mask of error bits in R1 responses.
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*/
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#define SDC_R1_ERROR_MASK 0xFDFFE008
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#define SDC_STS_IDLE 0
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#define SDC_STS_READY 1
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#define SDC_STS_IDENT 2
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#define SDC_STS_STBY 3
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#define SDC_STS_TRAN 4
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#define SDC_STS_DATA 5
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#define SDC_STS_RCV 6
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#define SDC_STS_PRG 7
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#define SDC_STS_DIS 8
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#define SDC_CMD_GO_IDLE_STATE 0
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#define SDC_CMD_INIT 1
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#define SDC_CMD_ALL_SEND_CID 2
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#define SDC_CMD_SEND_RELATIVE_ADDR 3
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#define SDC_CMD_SET_BUS_WIDTH 6
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#define SDC_CMD_SEL_DESEL_CARD 7
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#define SDC_CMD_SEND_IF_COND 8
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#define SDC_CMD_SEND_CSD 9
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#define SDC_CMD_STOP_TRANSMISSION 12
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#define SDC_CMD_SEND_STATUS 13
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#define SDC_CMD_SET_BLOCKLEN 16
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#define SDC_CMD_READ_MULTIPLE_BLOCK 18
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#define SDC_CMD_SET_BLOCK_COUNT 23
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#define SDC_CMD_WRITE_MULTIPLE_BLOCK 25
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#define SDC_CMD_APP_OP_COND 41
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#define SDC_CMD_LOCK_UNLOCK 42
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#define SDC_CMD_APP_CMD 55
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/*===========================================================================*/
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/* Driver pre-compile time settings. */
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/*===========================================================================*/
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/**
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* @brief Number of initialization attempts before rejecting the card.
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* @note Attempts are performed at 10mS intevals.
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*/
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#if !defined(SDC_INIT_RETRY) || defined(__DOXYGEN__)
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#define SDC_INIT_RETRY 100
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#endif
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/**
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* @brief Include support for MMC cards.
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* @note MMC support is not yet implemented so this option must be kept
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* at @p FALSE.
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*/
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#if !defined(SDC_MMC_SUPPORT) || defined(__DOXYGEN__)
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#define SDC_MMC_SUPPORT FALSE
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#endif
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/**
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* @brief Delays insertions.
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* @details If enabled this options inserts delays into the MMC waiting
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* routines releasing some extra CPU time for the threads with
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* lower priority, this may slow down the driver a bit however.
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*/
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#if !defined(SDC_NICE_WAITING) || defined(__DOXYGEN__)
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#define SDC_NICE_WAITING TRUE
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#endif
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/*===========================================================================*/
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/* Derived constants and error checks. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver data structures and types. */
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/*===========================================================================*/
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/**
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* @brief Driver state machine possible states.
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*/
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typedef enum {
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SDC_UNINIT = 0, /**< Not initialized. */
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SDC_STOP = 1, /**< Stopped. */
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SDC_READY = 2, /**< Ready. */
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SDC_CONNECTING = 3, /**< Card connection in progress. */
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SDC_DISCONNECTING = 4, /**< Card disconnection in progress. */
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SDC_ACTIVE = 5, /**< Cart initialized. */
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SDC_READING = 6, /**< Read operation in progress. */
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SDC_WRITING = 7, /**< Write operation in progress. */
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} sdcstate_t;
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#include "sdc_lld.h"
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/*===========================================================================*/
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/* Driver macros. */
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/*===========================================================================*/
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/**
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* @brief Evaluates to @p TRUE if the R1 response contains error flags.
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*
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* @param[in] r1 the r1 response
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*/
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#define SDC_R1_ERROR(r1) (((r1) & SDC_R1_ERROR_MASK) != 0)
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/**
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* @brief Returns the status field of an R1 response.
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*
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* @param[in] r1 the r1 response
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*/
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#define SDC_R1_STS(r1) (((r1) >> 9) & 15)
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/**
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* @brief Evaluates to @p TRUE if the R1 response indicates a locked card.
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*
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* @param[in] r1 the r1 response
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*/
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#define SDC_R1_IS_CARD_LOCKED(r1) (((r1) >> 21) & 1)
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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void sdcInit(void);
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void sdcObjectInit(SDCDriver *sdcp);
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void sdcStart(SDCDriver *sdcp, const SDCConfig *config);
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void sdcStop(SDCDriver *sdcp);
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bool_t sdcConnect(SDCDriver *sdcp);
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bool_t sdcDisconnect(SDCDriver *sdcp);
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bool_t sdcRead(SDCDriver *sdcp, uint32_t startblk,
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uint8_t *buffer, uint32_t n);
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bool_t sdcWrite(SDCDriver *sdcp, uint32_t startblk,
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const uint8_t *buffer, uint32_t n);
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bool_t sdc_wait_for_transfer_state(SDCDriver *sdcp);
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#ifdef __cplusplus
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}
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#endif
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#endif /* HAL_USE_SDC */
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#endif /* _SDC_H_ */
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/** @} */
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