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