MC100/Librarys/AT32F41x_Drivers/src/at32f413_sdio.c

/**
  **************************************************************************
  * @file     at32f413_sdio.c
  * @brief    contains all the functions for the sdio firmware library
  **************************************************************************
  *                       Copyright notice & Disclaimer
  *
  * The software Board Support Package (BSP) that is made available to
  * download from Artery official website is the copyrighted work of Artery.
  * Artery authorizes customers to use, copy, and distribute the BSP
  * software and its related documentation for the purpose of design and
  * development in conjunction with Artery microcontrollers. Use of the
  * software is governed by this copyright notice and the following disclaimer.
  *
  * THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
  * GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
  * TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
  * STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
  * INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
  * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
  *
  **************************************************************************
  */

#include "at32f413_conf.h"

/** @addtogroup AT32F413_periph_driver
  * @{
  */

/** @defgroup SDIO
  * @brief SDIO driver modules
  * @{
  */

#ifdef SDIO_MODULE_ENABLED

/** @defgroup SDIO_private_functions
  * @{
  */

/**
  * @brief  reset the sdio register
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @retval none
  */
void sdio_reset(sdio_type *sdio_x)
{
  sdio_x->pwrctrl = 0x0;
  sdio_x->clkctrl = 0x0;
  sdio_x->argu = 0x0;
  sdio_x->cmdctrl = 0x0;
  sdio_x->dttmr = 0x0;
  sdio_x->dtlen = 0x0;
  sdio_x->dtctrl = 0x0;
  sdio_x->inten = 0x0;
  sdio_x->intclr = 0x004007FF;
}

/**
  * @brief  set the power status of the controller
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  power_state
  *         this parameter can be one of the following values:
  *         - SDIO_POWER_OFF
  *         - SDIO_POWER_ON
  * @retval none
  */
void sdio_power_set(sdio_type *sdio_x, sdio_power_state_type power_state)
{
  sdio_x->pwrctrl_bit.ps = power_state;
}

/**
  * @brief  get power status.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @retval sdio_power_state_type (SDIO_POWER_ON or SDIO_POWER_OFF)
  */
sdio_power_state_type sdio_power_status_get(sdio_type *sdio_x)
{
  return (sdio_power_state_type)(sdio_x->pwrctrl_bit.ps);
}

/**
  * @brief  config sdio clock
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  clk_div: sdio clock divide factor(frequency = sdio_clk / [clk_psc + 2]).
  * @param  clk_edg
  *         this parameter can be one of the following values:
  *         - SDIO_CLOCK_EDGE_RISING
  *         - SDIO_CLOCK_EDGE_FALLING
  * @retval none
  */
void sdio_clock_config(sdio_type *sdio_x, uint16_t clk_div, sdio_edge_phase_type clk_edg)
{
  /* config clock edge */
  sdio_x->clkctrl_bit.clkegs = clk_edg;

  /* config clock divide [7:0] */
  sdio_x->clkctrl_bit.clkdiv_l = (clk_div & 0xFF);

  /* config clock divide [9:8] */
  sdio_x->clkctrl_bit.clkdiv_h = ((clk_div & 0x300) >> 8);
}

/**
  * @brief  config sdio bus width
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  width
  *         this parameter can be one of the following values:
  *         - SDIO_BUS_WIDTH_D1
  *         - SDIO_BUS_WIDTH_D4
  *         - SDIO_BUS_WIDTH_D8
  * @retval none
  */
void sdio_bus_width_config(sdio_type *sdio_x, sdio_bus_width_type width)
{
  sdio_x->clkctrl_bit.busws = width;
}

/**
  * @brief  enable or disable clock divider bypss
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  new_state (TRUE or FALSE)
  * @retval none
  */
void sdio_clock_bypass(sdio_type *sdio_x, confirm_state new_state)
{
  sdio_x->clkctrl_bit.bypsen = new_state;
}

/**
  * @brief  enable or disable power saving mode, config sdio_ck clock output
  *         when the bus is idle.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  new_state (TRUE or FALSE)
  * @retval none
  */
void sdio_power_saving_mode_enable(sdio_type *sdio_x, confirm_state new_state)
{
  sdio_x->clkctrl_bit.pwrsven = new_state;
}

/**
  * @brief  enable or disable hardware flow control.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  new_state (TRUE or FALSE)
  * @retval none
  */
void sdio_flow_control_enable(sdio_type *sdio_x, confirm_state new_state)
{
  sdio_x->clkctrl_bit.hfcen = new_state;
}

/**
  * @brief  enable or disable sdio_ck output.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  new_state (TRUE or FALSE)
  * @retval none
  */
void sdio_clock_enable(sdio_type *sdio_x, confirm_state new_state)
{
  sdio_x->clkctrl_bit.clkoen = new_state;
}

/**
  * @brief  enable or disable dma.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  new_state (TRUE or FALSE)
  * @retval none
  */
void sdio_dma_enable(sdio_type *sdio_x, confirm_state new_state)
{
  sdio_x->dtctrl_bit.dmaen = new_state;
}

/**
  * @brief  config corresponding interrupt.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  int_opt
  *         this parameter can be one of the following values:
  *         - SDIO_CMDFAIL_INT
  *         - SDIO_DTFAIL_INT
  *         - SDIO_CMDTIMEOUT_INT
  *         - SDIO_DTTIMEOUT_INT
  *         - SDIO_TXERRU_INT
  *         - SDIO_RXERRO_INT
  *         - SDIO_CMDRSPCMPL_INT
  *         - SDIO_CMDCMPL_INT
  *         - SDIO_DTCMP_INT
  *         - SDIO_SBITERR_INT
  *         - SDIO_DTBLKCMPL_INT
  *         - SDIO_DOCMD_INT
  *         - SDIO_DOTX_INT
  *         - SDIO_DORX_INT
  *         - SDIO_TXBUFH_INT
  *         - SDIO_RXBUFH_INT
  *         - SDIO_TXBUFF_INT
  *         - SDIO_RXBUFF_INT
  *         - SDIO_TXBUFE_INT
  *         - SDIO_RXBUFE_INT
  *         - SDIO_TXBUF_INT
  *         - SDIO_RXBUF_INT
  *         - SDIO_SDIOIF_INT
  * @param  new_state (TRUE or FALSE)
  * @retval none
  */
void sdio_interrupt_enable(sdio_type *sdio_x, uint32_t int_opt,  confirm_state new_state)
{
  /* enable interrupt */
  if(TRUE == new_state)
  {
    sdio_x->inten |= int_opt;
  }
  /* disable interrupt */
  else
  {
    sdio_x->inten &= ~(int_opt);
  }
}

/**
  * @brief  get sdio flag.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  flag
  *         this parameter can be one of the following values:
  *         - SDIO_CMDFAIL_FLAG
  *         - SDIO_DTFAIL_FLAG
  *         - SDIO_CMDTIMEOUT_FLAG
  *         - SDIO_DTTIMEOUT_FLAG
  *         - SDIO_TXERRU_FLAG
  *         - SDIO_RXERRO_FLAG
  *         - SDIO_CMDRSPCMPL_FLAG
  *         - SDIO_CMDCMPL_FLAG
  *         - SDIO_DTCMPL_FLAG
  *         - SDIO_SBITERR_FLAG
  *         - SDIO_DTBLKCMPL_FLAG
  *         - SDIO_DOCMD_FLAG
  *         - SDIO_DOTX_FLAG
  *         - SDIO_DORX_FLAG
  *         - SDIO_TXBUFH_FLAG
  *         - SDIO_RXBUFH_FLAG
  *         - SDIO_TXBUFF_FLAG
  *         - SDIO_RXBUFF_FLAG
  *         - SDIO_TXBUFE_FLAG
  *         - SDIO_RXBUFE_FLAG
  *         - SDIO_TXBUF_FLAG
  *         - SDIO_RXBUF_FLAG
  *         - SDIO_SDIOIF_FLAG
  * @retval flag_status (SET or RESET)
  */
flag_status sdio_flag_get(sdio_type *sdio_x, uint32_t flag)
{
  flag_status status = RESET;

  if((sdio_x->sts & flag) == flag)
  {
    status = SET;
  }
  else
  {
    status = RESET;
  }

  return status;
}

/**
  * @brief  clear sdio flag.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  int_opt
  *         this parameter can be any combination of the following values:
  *         - SDIO_CMDFAIL_FLAG
  *         - SDIO_DTFAIL_FLAG
  *         - SDIO_CMDTIMEOUT_FLAG
  *         - SDIO_DTTIMEOUT_FLAG
  *         - SDIO_TXERRU_FLAG
  *         - SDIO_RXERRO_FLAG
  *         - SDIO_CMDRSPCMPL_FLAG
  *         - SDIO_CMDCMPL_FLAG
  *         - SDIO_DTCMPL_FLAG
  *         - SDIO_SBITERR_FLAG
  *         - SDIO_DTBLKCMPL_FLAG
  *         - SDIO_SDIOIF_FLAG
  * @retval none
  */
void sdio_flag_clear(sdio_type *sdio_x, uint32_t flag)
{
  sdio_x->intclr = flag;
}

/**
  * @brief  config sdio command.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  command_struct : pointer to a sdio_command_struct_type structure
  *         that contains the configuration information for the sdio command.
  * @retval none
  */
void sdio_command_config(sdio_type *sdio_x, sdio_command_struct_type *command_struct)
{
  /* disable command path state machine */
  sdio_x->cmdctrl_bit.ccsmen = FALSE;

  /* config command argument */
  sdio_x->argu = command_struct->argument;

  /* config command register */
  sdio_x->cmdctrl_bit.cmdidx = command_struct->cmd_index;
  sdio_x->cmdctrl_bit.rspwt = command_struct->rsp_type;
  sdio_x->cmdctrl_bit.intwt = (command_struct->wait_type & 0x1); /* [1:0] -> [0] */
  sdio_x->cmdctrl_bit.pndwt = (command_struct->wait_type & 0x2)>>1; /* [1:0] -> [1] */
}

/**
  * @brief  enable or disable command path state machine(CPSM).
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  new_state (TRUE or FALSE)
  * @retval none
  */
void sdio_command_state_machine_enable(sdio_type *sdio_x, confirm_state new_state)
{
  sdio_x->cmdctrl_bit.ccsmen = new_state;
}

/**
  * @brief  get command index of last command for which response received.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  new_state (TRUE or FALSE)
  * @retval uint8_t: command index
  */
uint8_t sdio_command_response_get(sdio_type *sdio_x)
{
  return sdio_x->rspcmd_bit.rspcmd;
}

/**
  * @brief  get response received from the card for the last command.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  reg_index
  *         this parameter can be one of the following values:
  *         - SDIO_RSP1_INDEX
  *         - SDIO_RSP2_INDEX
  *         - SDIO_RSP3_INDEX
  *         - SDIO_RSP4_INDEX
  * @retval uint32_t: response register value
  */
uint32_t sdio_response_get(sdio_type *sdio_x, sdio_rsp_index_type reg_index)
{
  uint32_t response_value = 0;

  switch(reg_index)
  {
    case SDIO_RSP1_INDEX:
      response_value = sdio_x->rsp1;
      break;
    case SDIO_RSP2_INDEX:
      response_value = sdio_x->rsp2;
      break;
    case SDIO_RSP3_INDEX:
      response_value = sdio_x->rsp3;
      break;
    case SDIO_RSP4_INDEX:
      response_value = sdio_x->rsp4;
      break;
    default: break;
  }

  return response_value;
}

/**
  * @brief  config sdio data.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  data_struct : pointer to a sdio_data_struct_type structure
  *         that contains the configuration information for the sdio data.
  * @retval none
  */
void sdio_data_config(sdio_type *sdio_x, sdio_data_struct_type *data_struct)
{
  /* disable data path state machine */
  sdio_x->dtctrl_bit.tfren = FALSE;

  /* config data block, transfer mode and transfer direction */
  sdio_x->dtctrl_bit.blksize = data_struct->block_size;
  sdio_x->dtctrl_bit.tfrdir = data_struct->transfer_direction;
  sdio_x->dtctrl_bit.tfrmode = data_struct->transfer_mode;

  /* config data length */
  sdio_x->dtlen_bit.dtlen = data_struct->data_length;

  /* config data transfer timeout */
  sdio_x->dttmr_bit.timeout = data_struct->timeout;
}

/**
  * @brief  enable or disable data path state machine(DPSM).
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  new_state (TRUE or FALSE)
  * @retval none
  */
void sdio_data_state_machine_enable(sdio_type *sdio_x, confirm_state new_state)
{
  sdio_x->dtctrl_bit.tfren = new_state;
}

/**
  * @brief  get the number of remaining data bytes to be transferred.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @retval uint32_t: number of bytes
  */
uint32_t sdio_data_counter_get(sdio_type *sdio_x)
{
  return sdio_x->dtcnt;
}

/**
  * @brief  read a word data from sdio fifo.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @retval uint32_t: data received
  */
uint32_t sdio_data_read(sdio_type *sdio_x)
{
  return sdio_x->buf;
}

/**
  * @brief  get the number of words left to be written to or read from fifo..
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @retval uint32_t: number of words
  */
uint32_t sdio_buffer_counter_get(sdio_type *sdio_x)
{
  return sdio_x->bufcnt;
}

/**
  * @brief  write one word data to fifo.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  data: data to be transferred.
  * @retval none
  */
void sdio_data_write(sdio_type *sdio_x, uint32_t data)
{
  sdio_x->buf = data;
}

/**
  * @brief  set the read wait mode.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  mode
  *         this parameter can be one of the following values:
  *         - SDIO_READ_WAIT_CONTROLLED_BY_D2
  *         - SDIO_READ_WAIT_CONTROLLED_BY_CK
  * @retval none
  */
void sdio_read_wait_mode_set(sdio_type *sdio_x, sdio_read_wait_mode_type mode)
{
  sdio_x->dtctrl_bit.rdwtmode = mode;
}

/**
  * @brief  enable or disable to start sd i/o read wait operation.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  new_state (TRUE or FALSE)
  * @retval none
  */
void sdio_read_wait_start(sdio_type *sdio_x, confirm_state new_state)
{
  sdio_x->dtctrl_bit.rdwtstart = new_state;
}

/**
  * @brief  enable or disable to stop sd i/o read wait operation.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  new_state (TRUE or FALSE)
  * @retval none
  */
void sdio_read_wait_stop(sdio_type *sdio_x, confirm_state new_state)
{
  sdio_x->dtctrl_bit.rdwtstop = new_state;
}

/**
  * @brief  enable or disable the sd i/o function.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  new_state (TRUE or FALSE)
  * @retval none
  */
void sdio_io_function_enable(sdio_type *sdio_x, confirm_state new_state)
{
  sdio_x->dtctrl_bit.ioen = new_state;
}

/**
  * @brief  enable or disable sd i/o suspend command sending.
  * @param  sdio_x: to select the sdio peripheral.
  *         this parameter can be one of the following values:
  *         SDIO1.
  * @param  new_state (TRUE or FALSE)
  * @retval none
  */
void sdio_io_suspend_command_set(sdio_type *sdio_x, confirm_state new_state)
{
  sdio_x->cmdctrl_bit.iosusp = new_state;
}

/**
  * @}
  */

#endif

/**
  * @}
  */

/**
  * @}
  */