209 lines
5.8 KiB
C
209 lines
5.8 KiB
C
/*
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ChibiOS - Copyright (C) 2006..2018 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 hal_wspi_lld.c
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* @brief PLATFORM WSPI subsystem low level driver source.
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*
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* @addtogroup WSPI
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* @{
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*/
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#include "hal.h"
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#if (HAL_USE_WSPI == TRUE) || 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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/** @brief WSPID1 driver identifier.*/
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#if (PLATFORM_WSPI_USE_WSPI1 == TRUE) || defined(__DOXYGEN__)
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WSPIDriver WSPID1;
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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 WSPI driver initialization.
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*
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* @notapi
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*/
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void wspi_lld_init(void) {
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#if PLATFORM_WSPI_USE_WSPI1
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wspiObjectInit(&WSPID1);
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#endif
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}
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/**
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* @brief Configures and activates the WSPI peripheral.
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*
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* @param[in] wspip pointer to the @p WSPIDriver object
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*
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* @notapi
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*/
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void wspi_lld_start(WSPIDriver *wspip) {
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/* If in stopped state then full initialization.*/
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if (wspip->state == WSPI_STOP) {
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#if PLATFORM_WSPI_USE_WSPI1
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if (&WSPID1 == wspip) {
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}
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#endif
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/* Common initializations.*/
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}
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/* WSPI setup and enable.*/
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}
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/**
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* @brief Deactivates the WSPI peripheral.
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*
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* @param[in] wspip pointer to the @p WSPIDriver object
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*
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* @notapi
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*/
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void wspi_lld_stop(WSPIDriver *wspip) {
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/* If in ready state then disables WSPI.*/
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if (wspip->state == WSPI_READY) {
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/* WSPI disable.*/
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/* Stopping involved clocks.*/
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#if PLATFORM_WSPI_USE_WSPI1
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if (&WSPID1 == wspip) {
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}
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#endif
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}
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}
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/**
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* @brief Sends a command without data phase.
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* @post At the end of the operation the configured callback is invoked.
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*
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* @param[in] wspip pointer to the @p WSPIDriver object
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* @param[in] cmdp pointer to the command descriptor
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*
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* @notapi
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*/
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void wspi_lld_command(WSPIDriver *wspip, const wspi_command_t *cmdp) {
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(void)wspip;
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(void)cmdp;
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}
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/**
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* @brief Sends a command with data over the WSPI bus.
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* @post At the end of the operation the configured callback is invoked.
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*
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* @param[in] wspip pointer to the @p WSPIDriver object
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* @param[in] cmdp pointer to the command descriptor
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* @param[in] n number of bytes to send
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* @param[in] txbuf the pointer to the transmit buffer
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*
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* @notapi
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*/
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void wspi_lld_send(WSPIDriver *wspip, const wspi_command_t *cmdp,
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size_t n, const uint8_t *txbuf) {
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(void)wspip;
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(void)cmdp;
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(void)n;
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(void)txbuf;
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}
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/**
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* @brief Sends a command then receives data over the WSPI bus.
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* @post At the end of the operation the configured callback is invoked.
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*
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* @param[in] wspip pointer to the @p WSPIDriver object
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* @param[in] cmdp pointer to the command descriptor
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* @param[in] n number of bytes to send
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* @param[out] rxbuf the pointer to the receive buffer
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*
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* @notapi
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*/
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void wspi_lld_receive(WSPIDriver *wspip, const wspi_command_t *cmdp,
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size_t n, uint8_t *rxbuf) {
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(void)wspip;
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(void)cmdp;
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(void)n;
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(void)rxbuf;
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}
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#if (WSPI_SUPPORTS_MEMMAP == TRUE) || defined(__DOXYGEN__)
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/**
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* @brief Maps in memory space a WSPI flash device.
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* @pre The memory flash device must be initialized appropriately
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* before mapping it in memory space.
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*
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* @param[in] wspip pointer to the @p WSPIDriver object
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* @param[in] cmdp pointer to the command descriptor
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* @param[out] addrp pointer to the memory start address of the mapped
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* flash or @p NULL
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*
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* @notapi
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*/
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void wspi_lld_map_flash(WSPIDriver *wspip,
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const wspi_command_t *cmdp,
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uint8_t **addrp) {
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(void)wspip;
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(void)cmdp;
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(void)addrp;
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}
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/**
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* @brief Unmaps from memory space a WSPI flash device.
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* @post The memory flash device must be re-initialized for normal
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* commands exchange.
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*
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* @param[in] wspip pointer to the @p WSPIDriver object
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*
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* @notapi
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*/
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void wspi_lld_unmap_flash(WSPIDriver *wspip) {
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(void)wspip;
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}
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#endif /* WSPI_SUPPORTS_MEMMAP == TRUE */
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#endif /* HAL_USE_WSPI */
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/** @} */
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