/*
    ChibiOS - Copyright (C) 2006..2018 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    hal_wspi_lld.h
 * @brief   PLATFORM WSPI subsystem low level driver header.
 *
 * @addtogroup WSPI
 * @{
 */

#ifndef HAL_WSPI_LLD_H
#define HAL_WSPI_LLD_H

#if (HAL_USE_WSPI == TRUE) || defined(__DOXYGEN__)

/*===========================================================================*/
/* Driver constants.                                                         */
/*===========================================================================*/

/**
 * @name    WSPI implementation capabilities
 * @{
 */
#define WSPI_SUPPORTS_MEMMAP                TRUE
#define WSPI_DEFAULT_CFG_MASKS              TRUE
/** @} */

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

/**
 * @name    Configuration options
 * @{
 */
/**
 * @brief   WSPID1 driver enable switch.
 * @details If set to @p TRUE the support for WSPID1 is included.
 * @note    The default is @p FALSE.
 */
#if !defined(PLATFORM_WSPI_USE_WSPI1) || defined(__DOXYGEN__)
#define PLATFORM_WSPI_USE_WSPI1             FALSE
#endif
/** @} */

/*===========================================================================*/
/* Derived constants and error checks.                                       */
/*===========================================================================*/

/*===========================================================================*/
/* Driver data structures and types.                                         */
/*===========================================================================*/

/**
 * @brief   Driver configuration structure.
 */
struct hal_wspi_config {
  /**
   * @brief   Operation complete callback or @p NULL.
   */
  wspicallback_t             end_cb;
  /* End of the mandatory fields.*/
};

/**
 * @brief   Structure representing an WSPI driver.
 */
struct hal_wspi_driver {
  /**
   * @brief   Driver state.
   */
  wspistate_t               state;
  /**
   * @brief   Current configuration data.
   */
  const WSPIConfig          *config;
#if (WSPI_USE_WAIT == TRUE) || defined(__DOXYGEN__)
  /**
   * @brief   Waiting thread.
   */
  thread_reference_t        thread;
#endif /* WSPI_USE_WAIT */
#if (WSPI_USE_MUTUAL_EXCLUSION == TRUE) || defined(__DOXYGEN__)
  /**
   * @brief   Mutex protecting the peripheral.
   */
  mutex_t                   mutex;
#endif /* WSPI_USE_MUTUAL_EXCLUSION */
#if defined(WSPI_DRIVER_EXT_FIELDS)
  WSPI_DRIVER_EXT_FIELDS
#endif
  /* End of the mandatory fields.*/
};

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

/*===========================================================================*/
/* External declarations.                                                    */
/*===========================================================================*/

#if (PLATFORM_WSPI_USE_WSPI1 == TRUE) && !defined(__DOXYGEN__)
extern WSPIDriver WSPID1;
#endif

#ifdef __cplusplus
extern "C" {
#endif
  void wspi_lld_init(void);
  void wspi_lld_start(WSPIDriver *wspip);
  void wspi_lld_stop(WSPIDriver *wspip);
  void wspi_lld_command(WSPIDriver *wspip, const wspi_command_t *cmdp);
  void wspi_lld_send(WSPIDriver *wspip, const wspi_command_t *cmdp,
                     size_t n, const uint8_t *txbuf);
  void wspi_lld_receive(WSPIDriver *wspip, const wspi_command_t *cmdp,
                        size_t n, uint8_t *rxbuf);
#if WSPI_SUPPORTS_MEMMAP == TRUE
  void wspi_lld_map_flash(WSPIDriver *wspip,
                          const wspi_command_t *cmdp,
                          uint8_t **addrp);
  void wspi_lld_unmap_flash(WSPIDriver *wspip);
#endif
#ifdef __cplusplus
}
#endif

#endif /* HAL_USE_WSPI */

#endif /* HAL_WSPI_LLD_H */

/** @} */