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/*
ChibiOS - Copyright (C) 2006..2015 Giovanni Di Sirio
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
/**
* @file sdc_lld.c
* @brief PLATFORM SDC subsystem low level driver source.
*
* @addtogroup SDC
* @{
*/
#include "hal.h"
#if (HAL_USE_SDC == TRUE) || defined(__DOXYGEN__)
/*===========================================================================*/
/* Driver local definitions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported variables. */
/*===========================================================================*/
/**
* @brief SDCD1 driver identifier.
*/
#if (PLATFORM_SDC_USE_SDC1 == TRUE) || defined(__DOXYGEN__)
SDCDriver SDCD1;
#endif
/*===========================================================================*/
/* Driver local variables and types. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver local functions. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver interrupt handlers. */
/*===========================================================================*/
/*===========================================================================*/
/* Driver exported functions. */
/*===========================================================================*/
/**
* @brief Low level SDC driver initialization.
*
* @notapi
*/
void sdc_lld_init(void) {
#if PLATFORM_SDC_USE_SDC1 == TRUE
sdcObjectInit(&SDCD1);
#endif
}
/**
* @brief Configures and activates the SDC peripheral.
*
* @param[in] sdcp pointer to the @p SDCDriver object
*
* @notapi
*/
void sdc_lld_start(SDCDriver *sdcp) {
if (sdcp->state == BLK_STOP) {
}
}
/**
* @brief Deactivates the SDC peripheral.
*
* @param[in] sdcp pointer to the @p SDCDriver object
*
* @notapi
*/
void sdc_lld_stop(SDCDriver *sdcp) {
if (sdcp->state != BLK_STOP) {
}
}
/**
* @brief Starts the SDIO clock and sets it to init mode (400kHz or less).
*
* @param[in] sdcp pointer to the @p SDCDriver object
*
* @notapi
*/
void sdc_lld_start_clk(SDCDriver *sdcp) {
(void)sdcp;
}
/**
* @brief Sets the SDIO clock to data mode (25MHz or less).
*
* @param[in] sdcp pointer to the @p SDCDriver object
* @param[in] clk the clock mode
*
* @notapi
*/
void sdc_lld_set_data_clk(SDCDriver *sdcp, sdcbusclk_t clk) {
(void)sdcp;
(void)clk;
}
/**
* @brief Stops the SDIO clock.
*
* @param[in] sdcp pointer to the @p SDCDriver object
*
* @notapi
*/
void sdc_lld_stop_clk(SDCDriver *sdcp) {
(void)sdcp;
}
/**
* @brief Switches the bus to 4 bits mode.
*
* @param[in] sdcp pointer to the @p SDCDriver object
* @param[in] mode bus mode
*
* @notapi
*/
void sdc_lld_set_bus_mode(SDCDriver *sdcp, sdcbusmode_t mode) {
(void)sdcp;
switch (mode) {
case SDC_MODE_1BIT:
break;
case SDC_MODE_4BIT:
break;
case SDC_MODE_8BIT:
break;
default:
osalDbgAssert(false, "invalid bus mode");
break;
}
}
/**
* @brief Sends an SDIO command with no response expected.
*
* @param[in] sdcp pointer to the @p SDCDriver object
* @param[in] cmd card command
* @param[in] arg command argument
*
* @notapi
*/
void sdc_lld_send_cmd_none(SDCDriver *sdcp, uint8_t cmd, uint32_t arg) {
(void)sdcp;
(void)cmd;
(void)arg;
}
/**
* @brief Sends an SDIO command with a short response expected.
* @note The CRC is not verified.
*
* @param[in] sdcp pointer to the @p SDCDriver object
* @param[in] cmd card command
* @param[in] arg command argument
* @param[out] resp pointer to the response buffer (one word)
*
* @return The operation status.
* @retval HAL_SUCCESS operation succeeded.
* @retval HAL_FAILED operation failed.
*
* @notapi
*/
bool sdc_lld_send_cmd_short(SDCDriver *sdcp, uint8_t cmd, uint32_t arg,
uint32_t *resp) {
(void)sdcp;
(void)cmd;
(void)arg;
(void)resp;
return HAL_SUCCESS;
}
/**
* @brief Sends an SDIO command with a short response expected and CRC.
*
* @param[in] sdcp pointer to the @p SDCDriver object
* @param[in] cmd card command
* @param[in] arg command argument
* @param[out] resp pointer to the response buffer (one word)
*
* @return The operation status.
* @retval HAL_SUCCESS operation succeeded.
* @retval HAL_FAILED operation failed.
*
* @notapi
*/
bool sdc_lld_send_cmd_short_crc(SDCDriver *sdcp, uint8_t cmd, uint32_t arg,
uint32_t *resp) {
(void)sdcp;
(void)cmd;
(void)arg;
(void)resp;
return HAL_SUCCESS;
}
/**
* @brief Sends an SDIO command with a long response expected and CRC.
*
* @param[in] sdcp pointer to the @p SDCDriver object
* @param[in] cmd card command
* @param[in] arg command argument
* @param[out] resp pointer to the response buffer (four words)
*
* @return The operation status.
* @retval HAL_SUCCESS operation succeeded.
* @retval HAL_FAILED operation failed.
*
* @notapi
*/
bool sdc_lld_send_cmd_long_crc(SDCDriver *sdcp, uint8_t cmd, uint32_t arg,
uint32_t *resp) {
(void)sdcp;
(void)cmd;
(void)arg;
(void)resp;
return HAL_SUCCESS;
}
/**
* @brief Reads one or more blocks.
*
* @param[in] sdcp pointer to the @p SDCDriver object
* @param[in] startblk first block to read
* @param[out] buf pointer to the read buffer
* @param[in] n number of blocks to read
*
* @return The operation status.
* @retval HAL_SUCCESS operation succeeded.
* @retval HAL_FAILED operation failed.
*
* @notapi
*/
bool sdc_lld_read(SDCDriver *sdcp, uint32_t startblk,
uint8_t *buf, uint32_t n) {
(void)sdcp;
(void)startblk;
(void)buf;
(void)n;
return HAL_SUCCESS;
}
/**
* @brief Writes one or more blocks.
*
* @param[in] sdcp pointer to the @p SDCDriver object
* @param[in] startblk first block to write
* @param[out] buf pointer to the write buffer
* @param[in] n number of blocks to write
*
* @return The operation status.
* @retval HAL_SUCCESS operation succeeded.
* @retval HAL_FAILED operation failed.
*
* @notapi
*/
bool sdc_lld_write(SDCDriver *sdcp, uint32_t startblk,
const uint8_t *buf, uint32_t n) {
(void)sdcp;
(void)startblk;
(void)buf;
(void)n;
return HAL_SUCCESS;
}
/**
* @brief Waits for card idle condition.
*
* @param[in] sdcp pointer to the @p SDCDriver object
*
* @return The operation status.
* @retval HAL_SUCCESS the operation succeeded.
* @retval HAL_FAILED the operation failed.
*
* @api
*/
bool sdc_lld_sync(SDCDriver *sdcp) {
(void)sdcp;
return HAL_SUCCESS;
}
#endif /* HAL_USE_SDC == TRUE */
/** @} */
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