/* ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010, 2011,2012 Giovanni Di Sirio. This file is part of ChibiOS/RT. ChibiOS/RT 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 3 of the License, or (at your option) any later version. ChibiOS/RT 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 this program. If not, see . */ /** * @file sdc.h * @brief SDC Driver macros and structures. * * @addtogroup SDC * @{ */ #ifndef _SDC_H_ #define _SDC_H_ #if HAL_USE_SDC || defined(__DOXYGEN__) /*===========================================================================*/ /* Driver constants. */ /*===========================================================================*/ #define SDC_BLOCK_SIZE 512 /**< Fixed block size. */ /** * @brief Fixed pattern for CMD8. */ #define SDC_CMD8_PATTERN 0x000001AA /** * @name SD cart types * @{ */ #define SDC_MODE_CARDTYPE_MASK 0xF /**< @brief Card type mask. */ #define SDC_MODE_CARDTYPE_SDV11 0 /**< @brief Card is SD V1.1.*/ #define SDC_MODE_CARDTYPE_SDV20 1 /**< @brief Card is SD V2.0.*/ #define SDC_MODE_CARDTYPE_MMC 2 /**< @brief Card is MMC. */ #define SDC_MODE_HIGH_CAPACITY 0x10 /**< @brief High cap.card. */ /** @} */ /** * @brief Mask of error bits in R1 responses. */ #define SDC_R1_ERROR_MASK 0xFDFFE008 #define SDC_STS_IDLE 0 #define SDC_STS_READY 1 #define SDC_STS_IDENT 2 #define SDC_STS_STBY 3 #define SDC_STS_TRAN 4 #define SDC_STS_DATA 5 #define SDC_STS_RCV 6 #define SDC_STS_PRG 7 #define SDC_STS_DIS 8 #define SDC_CMD_GO_IDLE_STATE 0 #define SDC_CMD_INIT 1 #define SDC_CMD_ALL_SEND_CID 2 #define SDC_CMD_SEND_RELATIVE_ADDR 3 #define SDC_CMD_SET_BUS_WIDTH 6 #define SDC_CMD_SEL_DESEL_CARD 7 #define SDC_CMD_SEND_IF_COND 8 #define SDC_CMD_SEND_CSD 9 #define SDC_CMD_STOP_TRANSMISSION 12 #define SDC_CMD_SEND_STATUS 13 #define SDC_CMD_SET_BLOCKLEN 16 #define SDC_CMD_READ_SINGLE_BLOCK 17 #define SDC_CMD_READ_MULTIPLE_BLOCK 18 #define SDC_CMD_SET_BLOCK_COUNT 23 #define SDC_CMD_WRITE_BLOCK 24 #define SDC_CMD_WRITE_MULTIPLE_BLOCK 25 #define SDC_CMD_APP_OP_COND 41 #define SDC_CMD_LOCK_UNLOCK 42 #define SDC_CMD_APP_CMD 55 /*===========================================================================*/ /* Driver pre-compile time settings. */ /*===========================================================================*/ /** * @name SDC configuration options * @{ */ /** * @brief Number of initialization attempts before rejecting the card. * @note Attempts are performed at 10mS intevals. */ #if !defined(SDC_INIT_RETRY) || defined(__DOXYGEN__) #define SDC_INIT_RETRY 100 #endif /** * @brief Include support for MMC cards. * @note MMC support is not yet implemented so this option must be kept * at @p FALSE. */ #if !defined(SDC_MMC_SUPPORT) || defined(__DOXYGEN__) #define SDC_MMC_SUPPORT FALSE #endif /** * @brief Delays insertions. * @details If enabled this options inserts delays into the MMC waiting * routines releasing some extra CPU time for the threads with * lower priority, this may slow down the driver a bit however. */ #if !defined(SDC_NICE_WAITING) || defined(__DOXYGEN__) #define SDC_NICE_WAITING TRUE #endif /** @} */ /*===========================================================================*/ /* Derived constants and error checks. */ /*===========================================================================*/ /*===========================================================================*/ /* Driver data structures and types. */ /*===========================================================================*/ /** * @brief Driver state machine possible states. */ typedef enum { SDC_UNINIT = 0, /**< Not initialized. */ SDC_STOP = 1, /**< Stopped. */ SDC_READY = 2, /**< Ready. */ SDC_CONNECTING = 3, /**< Card connection in progress. */ SDC_DISCONNECTING = 4, /**< Card disconnection in progress. */ SDC_ACTIVE = 5, /**< Cart initialized. */ SDC_READING = 6, /**< Read operation in progress. */ SDC_WRITING = 7, /**< Write operation in progress. */ } sdcstate_t; #include "sdc_lld.h" /*===========================================================================*/ /* Driver macros. */ /*===========================================================================*/ /** * @name R1 response utilities * @{ */ /** * @brief Evaluates to @p TRUE if the R1 response contains error flags. * * @param[in] r1 the r1 response */ #define SDC_R1_ERROR(r1) (((r1) & SDC_R1_ERROR_MASK) != 0) /** * @brief Returns the status field of an R1 response. * * @param[in] r1 the r1 response */ #define SDC_R1_STS(r1) (((r1) >> 9) & 15) /** * @brief Evaluates to @p TRUE if the R1 response indicates a locked card. * * @param[in] r1 the r1 response */ #define SDC_R1_IS_CARD_LOCKED(r1) (((r1) >> 21) & 1) /** @} */ /** * @name Macro Functions * @{ */ /** * @brief Returns the driver state. * * @param[in] sdcp pointer to the @p SDCDriver object * @return The driver state. * * @api */ #define sdcGetDriverState(sdcp) ((sdcp)->state) /** * @brief Returns the card insertion status. * @note This macro wraps a low level function named * @p sdc_lld_is_card_inserted(), this function must be * provided by the application because it is not part of the * SDC driver. * * @param[in] sdcp pointer to the @p SDCDriver object * @return The card state. * @retval FALSE card not inserted. * @retval TRUE card inserted. * * @api */ #define sdcIsCardInserted(sdcp) (sdc_lld_is_card_inserted(sdcp)) /** * @brief Returns the write protect status. * @note This macro wraps a low level function named * @p sdc_lld_is_write_protected(), this function must be * provided by the application because it is not part of the * SDC driver. * * @param[in] sdcp pointer to the @p SDCDriver object * @return The card state. * @retval FALSE card not inserted. * @retval TRUE card inserted. * * @api */ #define sdcIsWriteProtected(sdcp) (sdc_lld_is_write_protected(sdcp)) /** @} */ /*===========================================================================*/ /* External declarations. */ /*===========================================================================*/ #ifdef __cplusplus extern "C" { #endif void sdcInit(void); void sdcObjectInit(SDCDriver *sdcp); void sdcStart(SDCDriver *sdcp, const SDCConfig *config); void sdcStop(SDCDriver *sdcp); bool_t sdcConnect(SDCDriver *sdcp); bool_t sdcDisconnect(SDCDriver *sdcp); bool_t sdcRead(SDCDriver *sdcp, uint32_t startblk, uint8_t *buffer, uint32_t n); bool_t sdcWrite(SDCDriver *sdcp, uint32_t startblk, const uint8_t *buffer, uint32_t n); bool_t _sdc_wait_for_transfer_state(SDCDriver *sdcp); #ifdef __cplusplus } #endif #endif /* HAL_USE_SDC */ #endif /* _SDC_H_ */ /** @} */