198 lines
6.3 KiB
C
198 lines
6.3 KiB
C
/*
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ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio.
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This file is part of ChibiOS.
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ChibiOS 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 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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/**
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* @name SD card types
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* @{
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*/
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#define SDC_MODE_CARDTYPE_MASK 0xF /**< @brief Card type mask. */
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#define SDC_MODE_CARDTYPE_SDV11 0
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#define SDC_MODE_CARDTYPE_SDV20 1
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#define SDC_MODE_CARDTYPE_MMC 2
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#define SDC_MODE_HIGH_CAPACITY 0x10
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/** @} */
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/**
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* @name SDC bus error conditions
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* @{
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*/
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#define SDC_NO_ERROR 0
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#define SDC_CMD_CRC_ERROR 1
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#define SDC_DATA_CRC_ERROR 2
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#define SDC_DATA_TIMEOUT 4
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#define SDC_COMMAND_TIMEOUT 8
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#define SDC_TX_UNDERRUN 16
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#define SDC_RX_OVERRUN 32
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#define SDC_STARTBIT_ERROR 64
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#define SDC_OVERFLOW_ERROR 128
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#define SDC_UNHANDLED_ERROR 0xFFFFFFFF
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/** @} */
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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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* @name SDC configuration options
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* @{
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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 intervals.
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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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/*===========================================================================*/
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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 Type of SDIO bus mode.
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*/
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typedef enum {
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SDC_MODE_1BIT = 0,
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SDC_MODE_4BIT,
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SDC_MODE_8BIT
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} sdcbusmode_t;
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/**
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* @brief Max supported clock.
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*/
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typedef enum {
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SDC_CLK_25MHz = 0,
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SDC_CLK_50MHz,
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} sdcbusclk_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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* @name Macro Functions
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* @{
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*/
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/**
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* @brief Returns the card insertion status.
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* @note This macro wraps a low level function named
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* @p sdc_lld_is_card_inserted(), this function must be
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* provided by the application because it is not part of the
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* SDC driver.
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*
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* @param[in] sdcp pointer to the @p SDCDriver object
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* @return The card state.
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* @retval FALSE card not inserted.
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* @retval TRUE card inserted.
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*
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* @api
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*/
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#define sdcIsCardInserted(sdcp) (sdc_lld_is_card_inserted(sdcp))
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/**
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* @brief Returns the write protect status.
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* @note This macro wraps a low level function named
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* @p sdc_lld_is_write_protected(), this function must be
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* provided by the application because it is not part of the
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* SDC driver.
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*
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* @param[in] sdcp pointer to the @p SDCDriver object
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* @return The card state.
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* @retval FALSE not write protected.
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* @retval TRUE write protected.
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*
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* @api
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*/
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#define sdcIsWriteProtected(sdcp) (sdc_lld_is_write_protected(sdcp))
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/** @} */
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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 sdcConnect(SDCDriver *sdcp);
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bool sdcDisconnect(SDCDriver *sdcp);
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bool sdcRead(SDCDriver *sdcp, uint32_t startblk,
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uint8_t *buffer, uint32_t n);
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bool sdcWrite(SDCDriver *sdcp, uint32_t startblk,
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const uint8_t *buffer, uint32_t n);
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sdcflags_t sdcGetAndClearErrors(SDCDriver *sdcp);
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bool sdcSync(SDCDriver *sdcp);
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bool sdcGetInfo(SDCDriver *sdcp, BlockDeviceInfo *bdip);
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bool _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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