ChibiOS/os/hal/include/sdc.h

/*
    ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010,
                 2011 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 <http://www.gnu.org/licenses/>.
*/

/**
 * @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.      */

#define SDC_CMD_GO_IDLE_STATE           0
#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_MULTIPLE_BLOCK     18
#define SDC_CMD_SET_BLOCK_COUNT         23
#define SDC_CMD_WRITE_MULTIPLE_BLOCK    25
#define SDC_CMD_APP_OP_COND             41
#define SDC_CMD_APP_CMD                 55

#define SDC_MODE_CARDTYPE_MASK          0xF
#define SDC_MODE_CARDTYPE_SDV11         0       /**< Card is V1.1 compliant.*/
#define SDC_MODE_CARDTYPE_SDV20         1       /**< Card is V2.0 compliant.*/
#define SDC_MODE_CARDTYPE_MMC           2       /**< Card is MMC compliant. */
#define SDC_MODE_HIGH_CAPACITY          0x10    /**< High capacity card.    */

#define SDC_STS(r1)                     (((r1) >> 9) & 15)
#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_CMD8_PATTERN                0x000001AA

#define SDC_ACMD41_RETRY                100

#define SDC_R1_ERROR_MASK               0xFDFFE008

/*===========================================================================*/
/* Driver pre-compile time settings.                                         */
/*===========================================================================*/

/*===========================================================================*/
/* 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_INITNG = 3,                   /**< Card initialization in progress.   */
  SDC_ACTIVE = 4,                   /**< Cart initialized.                  */
  SDC_READING = 5,                  /**< Read operation in progress.        */
  SDC_WRITING = 6,                  /**< Write operation in progress.       */
} sdcstate_t;

#include "sdc_lld.h"

/*===========================================================================*/
/* Driver macros.                                                            */
/*===========================================================================*/

/*===========================================================================*/
/* 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);
#ifdef __cplusplus
}
#endif

#endif /* HAL_USE_SDC */

#endif /* _SDC_H_ */

/** @} */