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rt-thread-official/bsp/gd32450z-eval/Libraries/GD32F4xx_standard_peripheral/Source/gd32f4xx_sdio.c

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/*!
\file gd32f4xx_sdio.c
\brief SDIO driver
*/
/*
Copyright (C) 2016 GigaDevice
2016-08-15, V1.0.0, firmware for GD32F4xx
*/
#include "gd32f4xx_sdio.h"
/*!
\brief deinitialize the SDIO
\param[in] none
\param[out] none
\retval none
*/
void sdio_deinit(void)
{
rcu_periph_reset_enable(RCU_SDIORST);
rcu_periph_reset_disable(RCU_SDIORST);
}
/*!
\brief configure the SDIO clock
\param[in] clock_edge: SDIO_CLK clock edge
\arg SDIO_SDIOCLKEDGE_RISING: select the rising edge of the SDIOCLK to generate SDIO_CLK
\arg SDIO_SDIOCLKEDGE_FALLING: select the falling edge of the SDIOCLK to generate SDIO_CLK
\param[in] clock_bypass: clock bypass
\arg SDIO_CLOCKBYPASS_ENABLE: clock bypass
\arg SDIO_CLOCKBYPASS_DISABLE: no bypass
\param[in] clock_powersave: SDIO_CLK clock dynamic switch on/off for power saving
\arg SDIO_CLOCKPWRSAVE_ENABLE: SDIO_CLK closed when bus is idle
\arg SDIO_CLOCKPWRSAVE_DISABLE: SDIO_CLK clock is always on
\param[in] clock_division: clock division, less than 512
\param[out] none
\retval none
*/
void sdio_clock_config(uint32_t clock_edge, uint32_t clock_bypass, uint32_t clock_powersave, uint16_t clock_division)
{
uint32_t clock_config = 0U;
clock_config = SDIO_CLKCTL;
/* reset the CLKEDGE, CLKBYP, CLKPWRSAV, DIV */
clock_config &= ~(SDIO_CLKCTL_CLKEDGE | SDIO_CLKCTL_CLKBYP | SDIO_CLKCTL_CLKPWRSAV | SDIO_CLKCTL_DIV8 | SDIO_CLKCTL_DIV);
/* if the clock division is greater or equal to 256, set the DIV[8] */
if(clock_division >= 256U){
clock_config |= SDIO_CLKCTL_DIV8;
clock_division -= 256U;
}
/* configure the SDIO_CLKCTL according to the parameters */
clock_config |= (clock_edge | clock_bypass | clock_powersave | clock_division);
SDIO_CLKCTL = clock_config;
}
/*!
\brief enable hardware clock control
\param[in] none
\param[out] none
\retval none
*/
void sdio_hardware_clock_enable(void)
{
SDIO_CLKCTL |= SDIO_CLKCTL_HWCLKEN;
}
/*!
\brief disable hardware clock control
\param[in] none
\param[out] none
\retval none
*/
void sdio_hardware_clock_disable(void)
{
SDIO_CLKCTL &= ~SDIO_CLKCTL_HWCLKEN;
}
/*!
\brief set different SDIO card bus mode
\param[in] bus_mode: SDIO card bus mode
\arg SDIO_BUSMODE_1BIT: 1-bit SDIO card bus mode
\arg SDIO_BUSMODE_4BIT: 4-bit SDIO card bus mode
\arg SDIO_BUSMODE_8BIT: 8-bit SDIO card bus mode
\param[out] none
\retval none
*/
void sdio_bus_mode_set(uint32_t bus_mode)
{
/* reset the SDIO card bus mode bits and set according to bus_mode */
SDIO_CLKCTL &= ~SDIO_CLKCTL_BUSMODE;
SDIO_CLKCTL |= bus_mode;
}
/*!
\brief set the SDIO power state
\param[in] power_state: SDIO power state
\arg SDIO_POWER_ON: SDIO power on
\arg SDIO_POWER_OFF: SDIO power off
\param[out] none
\retval none
*/
void sdio_power_state_set(uint32_t power_state)
{
SDIO_PWRCTL = power_state;
}
/* get the SDIO power state */
/*!
\brief get the SDIO power state
\param[in] none
\param[out] none
\retval SDIO power state
\arg SDIO_POWER_ON: SDIO power on
\arg SDIO_POWER_OFF: SDIO power off
*/
uint32_t sdio_power_state_get(void)
{
return SDIO_PWRCTL;
}
/*!
\brief enable SDIO_CLK clock output
\param[in] none
\param[out] none
\retval none
*/
void sdio_clock_enable(void)
{
SDIO_CLKCTL |= SDIO_CLKCTL_CLKEN;
}
/*!
\brief disable SDIO_CLK clock output
\param[in] none
\param[out] none
\retval none
*/
void sdio_clock_disable(void)
{
SDIO_CLKCTL &= ~SDIO_CLKCTL_CLKEN;
}
/*!
\brief configure the command and response
\param[in] cmd_index: command index, refer to the related specifications
\param[in] cmd_argument: command argument, refer to the related specifications
\param[in] response_type: response type
\arg SDIO_RESPONSETYPE_NO: no response
\arg SDIO_RESPONSETYPE_SHORT: short response
\arg SDIO_RESPONSETYPE_LONG: long response
\param[out] none
\retval none
*/
void sdio_command_response_config(uint32_t cmd_index, uint32_t cmd_argument, uint32_t response_type)
{
uint32_t cmd_config = 0U;
/* reset the command index, command argument and response type */
SDIO_CMDAGMT &= ~SDIO_CMDAGMT_CMDAGMT;
SDIO_CMDAGMT = cmd_argument;
cmd_config = SDIO_CMDCTL;
cmd_config &= ~(SDIO_CMDCTL_CMDIDX | SDIO_CMDCTL_CMDRESP);
/* configure SDIO_CMDCTL and SDIO_CMDAGMT according to the parameters */
cmd_config |= (cmd_index | response_type);
SDIO_CMDCTL = cmd_config;
}
/*!
\brief set the command state machine wait type
\param[in] wait_type: wait type
\arg SDIO_WAITTYPE_NO: not wait interrupt
\arg SDIO_WAITTYPE_INTERRUPT: wait interrupt
\arg SDIO_WAITTYPE_DATAEND: wait the end of data transfer
\param[out] none
\retval none
*/
void sdio_wait_type_set(uint32_t wait_type)
{
/* reset INTWAIT and WAITDEND */
SDIO_CMDCTL &= ~(SDIO_CMDCTL_INTWAIT | SDIO_CMDCTL_WAITDEND);
/* set the wait type according to wait_type */
SDIO_CMDCTL |= wait_type;
}
/*!
\brief enable the CSM(command state machine)
\param[in] none
\param[out] none
\retval none
*/
void sdio_csm_enable(void)
{
SDIO_CMDCTL |= SDIO_CMDCTL_CSMEN;
}
/*!
\brief disable the CSM(command state machine)
\param[in] none
\param[out] none
\retval none
*/
void sdio_csm_disable(void)
{
SDIO_CMDCTL &= ~SDIO_CMDCTL_CSMEN;
}
/*!
\brief get the last response command index
\param[in] none
\param[out] none
\retval last response command index
*/
uint8_t sdio_command_index_get(void)
{
return (uint8_t)SDIO_RSPCMDIDX;
}
/*!
\brief get the response for the last received command
\param[in] sdio_responsex: SDIO response
\arg SDIO_RESPONSE0: card response[31:0]/card response[127:96]
\arg SDIO_RESPONSE1: card response[95:64]
\arg SDIO_RESPONSE2: card response[63:32]
\arg SDIO_RESPONSE3: card response[31:1], plus bit 0
\param[out] none
\retval response for the last received command
*/
uint32_t sdio_response_get(uint32_t sdio_responsex)
{
uint32_t resp_content = 0U;
switch(sdio_responsex){
case SDIO_RESPONSE0:
resp_content = SDIO_RESP0;
break;
case SDIO_RESPONSE1:
resp_content = SDIO_RESP1;
break;
case SDIO_RESPONSE2:
resp_content = SDIO_RESP2;
break;
case SDIO_RESPONSE3:
resp_content = SDIO_RESP3;
break;
default:
break;
}
return resp_content;
}
/*!
\brief configure the data timeout, data length and data block size
\param[in] data_timeout: data timeout period in card bus clock periods
\param[in] data_length: number of data bytes to be transferred
\param[in] data_blocksize: size of data block for block transfer
\arg SDIO_DATABLOCKSIZE_1BYTE: block size = 1 byte
\arg SDIO_DATABLOCKSIZE_2BYTES: block size = 2 bytes
\arg SDIO_DATABLOCKSIZE_4BYTES: block size = 4 bytes
\arg SDIO_DATABLOCKSIZE_8BYTES: block size = 8 bytes
\arg SDIO_DATABLOCKSIZE_16BYTES: block size = 16 bytes
\arg SDIO_DATABLOCKSIZE_32BYTES: block size = 32 bytes
\arg SDIO_DATABLOCKSIZE_64BYTES: block size = 64 bytes
\arg SDIO_DATABLOCKSIZE_128BYTES: block size = 128 bytes
\arg SDIO_DATABLOCKSIZE_256BYTES: block size = 256 bytes
\arg SDIO_DATABLOCKSIZE_512BYTES: block size = 512 bytes
\arg SDIO_DATABLOCKSIZE_1024BYTES: block size = 1024 bytes
\arg SDIO_DATABLOCKSIZE_2048BYTES: block size = 2048 bytes
\arg SDIO_DATABLOCKSIZE_4096BYTES: block size = 4096 bytes
\arg SDIO_DATABLOCKSIZE_8192BYTES: block size = 8192 bytes
\arg SDIO_DATABLOCKSIZE_16384BYTES: block size = 16384 bytes
\param[out] none
\retval none
*/
void sdio_data_config(uint32_t data_timeout, uint32_t data_length, uint32_t data_blocksize)
{
/* reset data timeout, data length and data block size */
SDIO_DATATO &= ~SDIO_DATATO_DATATO;
SDIO_DATALEN &= ~SDIO_DATALEN_DATALEN;
SDIO_DATACTL &= ~SDIO_DATACTL_BLKSZ;
/* configure the related parameters of data */
SDIO_DATATO = data_timeout;
SDIO_DATALEN = data_length;
SDIO_DATACTL |= data_blocksize;
}
/*!
\brief configure the data transfer mode and direction
\param[in] transfer_mode: mode of data transfer
\arg SDIO_TRANSMODE_BLOCK: block transfer
\arg SDIO_TRANSMODE_STREAM: stream transfer or SDIO multibyte transfer
\param[in] transfer_direction: data transfer direction, read or write
\arg SDIO_TRANSDIRECTION_TOCARD: write data to card
\arg SDIO_TRANSDIRECTION_TOSDIO: read data from card
\param[out] none
\retval none
*/
void sdio_data_transfer_config(uint32_t transfer_mode, uint32_t transfer_direction)
{
uint32_t data_trans = 0U;
/* reset the data transfer mode, transfer direction and set according to the parameters */
data_trans = SDIO_DATACTL;
data_trans &= ~(SDIO_DATACTL_TRANSMOD | SDIO_DATACTL_DATADIR);
data_trans |= (transfer_mode | transfer_direction);
SDIO_DATACTL = data_trans;
}
/*!
\brief enable the DSM(data state machine) for data transfer
\param[in] none
\param[out] none
\retval none
*/
void sdio_dsm_enable(void)
{
SDIO_DATACTL |= SDIO_DATACTL_DATAEN;
}
/*!
\brief disable the DSM(data state machine)
\param[in] none
\param[out] none
\retval none
*/
void sdio_dsm_disable(void)
{
SDIO_DATACTL &= ~SDIO_DATACTL_DATAEN;
}
/*!
\brief write data(one word) to the transmit FIFO
\param[in] data: 32-bit data write to card
\param[out] none
\retval none
*/
void sdio_data_write(uint32_t data)
{
SDIO_FIFO = data;
}
/*!
\brief read data(one word) from the receive FIFO
\param[in] none
\param[out] none
\retval received data
*/
uint32_t sdio_data_read(void)
{
return SDIO_FIFO;
}
/*!
\brief get the number of remaining data bytes to be transferred to card
\param[in] none
\param[out] none
\retval number of remaining data bytes to be transferred
*/
uint32_t sdio_data_counter_get(void)
{
return SDIO_DATACNT;
}
/*!
\brief get the number of words remaining to be written or read from FIFO
\param[in] none
\param[out] none
\retval remaining number of words
*/
uint32_t sdio_fifo_counter_get(void)
{
return SDIO_FIFOCNT;
}
/*!
\brief enable the DMA request for SDIO
\param[in] none
\param[out] none
\retval none
*/
void sdio_dma_enable(void)
{
SDIO_DATACTL |= SDIO_DATACTL_DMAEN;
}
/*!
\brief disable the DMA request for SDIO
\param[in] none
\param[out] none
\retval none
*/
void sdio_dma_disable(void)
{
SDIO_DATACTL &= ~SDIO_DATACTL_DMAEN;
}
/*!
\brief get the flags state of SDIO
\param[in] flag: flags state of SDIO
\arg SDIO_FLAG_CCRCERR: command response received (CRC check failed) flag
\arg SDIO_FLAG_DTCRCERR: data block sent/received (CRC check failed) flag
\arg SDIO_FLAG_CMDTMOUT: command response timeout flag
\arg SDIO_FLAG_DTTMOUT: data timeout flag
\arg SDIO_FLAG_TXURE: transmit FIFO underrun error occurs flag
\arg SDIO_FLAG_RXORE: received FIFO overrun error occurs flag
\arg SDIO_FLAG_CMDRECV: command response received (CRC check passed) flag
\arg SDIO_FLAG_CMDSEND: command sent (no response required) flag
\arg SDIO_FLAG_DTEND: data end (data counter, SDIO_DATACNT, is zero) flag
\arg SDIO_FLAG_STBITE: start bit error in the bus flag
\arg SDIO_FLAG_DTBLKEND: data block sent/received (CRC check passed) flag
\arg SDIO_FLAG_CMDRUN: command transmission in progress flag
\arg SDIO_FLAG_TXRUN: data transmission in progress flag
\arg SDIO_FLAG_RXRUN: data reception in progress flag
\arg SDIO_FLAG_TFH: transmit FIFO is half empty flag: at least 8 words can be written into the FIFO
\arg SDIO_FLAG_RFH: receive FIFO is half full flag: at least 8 words can be read in the FIFO
\arg SDIO_FLAG_TFF: transmit FIFO is full flag
\arg SDIO_FLAG_RFF: receive FIFO is full flag
\arg SDIO_FLAG_TFE: transmit FIFO is empty flag
\arg SDIO_FLAG_RFE: receive FIFO is empty flag
\arg SDIO_FLAG_TXDTVAL: data is valid in transmit FIFO flag
\arg SDIO_FLAG_RXDTVAL: data is valid in receive FIFO flag
\arg SDIO_FLAG_SDIOINT: SD I/O interrupt received flag
\arg SDIO_FLAG_ATAEND: CE-ATA command completion signal received (only for CMD61) flag
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus sdio_flag_get(uint32_t flag)
{
FlagStatus temp_flag = RESET;
if(RESET != (SDIO_STAT & flag)){
temp_flag = SET;
}
return temp_flag;
}
/*!
\brief clear the pending flags of SDIO
\param[in] flag: flags state of SDIO
\arg SDIO_FLAG_CCRCERR: command response received (CRC check failed) flag
\arg SDIO_FLAG_DTCRCERR: data block sent/received (CRC check failed) flag
\arg SDIO_FLAG_CMDTMOUT: command response timeout flag
\arg SDIO_FLAG_DTTMOUT: data timeout flag
\arg SDIO_FLAG_TXURE: transmit FIFO underrun error occurs flag
\arg SDIO_FLAG_RXORE: received FIFO overrun error occurs flag
\arg SDIO_FLAG_CMDRECV: command response received (CRC check passed) flag
\arg SDIO_FLAG_CMDSEND: command sent (no response required) flag
\arg SDIO_FLAG_DTEND: data end (data counter, SDIO_DATACNT, is zero) flag
\arg SDIO_FLAG_STBITE: start bit error in the bus flag
\arg SDIO_FLAG_DTBLKEND: data block sent/received (CRC check passed) flag
\arg SDIO_FLAG_SDIOINT: SD I/O interrupt received flag
\arg SDIO_FLAG_ATAEND: CE-ATA command completion signal received (only for CMD61) flag
\param[out] none
\retval none
*/
void sdio_flag_clear(uint32_t flag)
{
SDIO_INTC = flag;
}
/*!
\brief enable the SDIO interrupt
\param[in] int_flag: interrupt flags state of SDIO
\arg SDIO_INT_CCRCERR: SDIO CCRCERR interrupt
\arg SDIO_INT_DTCRCERR: SDIO DTCRCERR interrupt
\arg SDIO_INT_CMDTMOUT: SDIO CMDTMOUT interrupt
\arg SDIO_INT_DTTMOUT: SDIO DTTMOUT interrupt
\arg SDIO_INT_TXURE: SDIO TXURE interrupt
\arg SDIO_INT_RXORE: SDIO RXORE interrupt
\arg SDIO_INT_CMDRECV: SDIO CMDRECV interrupt
\arg SDIO_INT_CMDSEND: SDIO CMDSEND interrupt
\arg SDIO_INT_DTEND: SDIO DTEND interrupt
\arg SDIO_INT_STBITE: SDIO STBITE interrupt
\arg SDIO_INT_DTBLKEND: SDIO DTBLKEND interrupt
\arg SDIO_INT_CMDRUN: SDIO CMDRUN interrupt
\arg SDIO_INT_TXRUN: SDIO TXRUN interrupt
\arg SDIO_INT_RXRUN: SDIO RXRUN interrupt
\arg SDIO_INT_TFH: SDIO TFH interrupt
\arg SDIO_INT_RFH: SDIO RFH interrupt
\arg SDIO_INT_TFF: SDIO TFF interrupt
\arg SDIO_INT_RFF: SDIO RFF interrupt
\arg SDIO_INT_TFE: SDIO TFE interrupt
\arg SDIO_INT_RFE: SDIO RFE interrupt
\arg SDIO_INT_TXDTVAL: SDIO TXDTVAL interrupt
\arg SDIO_INT_RXDTVAL: SDIO RXDTVAL interrupt
\arg SDIO_INT_SDIOINT: SDIO SDIOINT interrupt
\arg SDIO_INT_ATAEND: SDIO ATAEND interrupt
\param[out] none
\retval none
*/
void sdio_interrupt_enable(uint32_t int_flag)
{
SDIO_INTEN |= int_flag;
}
/*!
\brief disable the SDIO interrupt
\param[in] int_flag: interrupt flags state of SDIO
\arg SDIO_INT_CCRCERR: SDIO CCRCERR interrupt
\arg SDIO_INT_DTCRCERR: SDIO DTCRCERR interrupt
\arg SDIO_INT_CMDTMOUT: SDIO CMDTMOUT interrupt
\arg SDIO_INT_DTTMOUT: SDIO DTTMOUT interrupt
\arg SDIO_INT_TXURE: SDIO TXURE interrupt
\arg SDIO_INT_RXORE: SDIO RXORE interrupt
\arg SDIO_INT_CMDRECV: SDIO CMDRECV interrupt
\arg SDIO_INT_CMDSEND: SDIO CMDSEND interrupt
\arg SDIO_INT_DTEND: SDIO DTEND interrupt
\arg SDIO_INT_STBITE: SDIO STBITE interrupt
\arg SDIO_INT_DTBLKEND: SDIO DTBLKEND interrupt
\arg SDIO_INT_CMDRUN: SDIO CMDRUN interrupt
\arg SDIO_INT_TXRUN: SDIO TXRUN interrupt
\arg SDIO_INT_RXRUN: SDIO RXRUN interrupt
\arg SDIO_INT_TFH: SDIO TFH interrupt
\arg SDIO_INT_RFH: SDIO RFH interrupt
\arg SDIO_INT_TFF: SDIO TFF interrupt
\arg SDIO_INT_RFF: SDIO RFF interrupt
\arg SDIO_INT_TFE: SDIO TFE interrupt
\arg SDIO_INT_RFE: SDIO RFE interrupt
\arg SDIO_INT_TXDTVAL: SDIO TXDTVAL interrupt
\arg SDIO_INT_RXDTVAL: SDIO RXDTVAL interrupt
\arg SDIO_INT_SDIOINT: SDIO SDIOINT interrupt
\arg SDIO_INT_ATAEND: SDIO ATAEND interrupt
\param[out] none
\retval none
*/
void sdio_interrupt_disable(uint32_t int_flag)
{
SDIO_INTEN &= ~int_flag;
}
/*!
\brief get the interrupt flags state of SDIO
\param[in] int_flag: interrupt flags state of SDIO
\arg SDIO_INT_CCRCERR: SDIO CCRCERR interrupt
\arg SDIO_INT_DTCRCERR: SDIO DTCRCERR interrupt
\arg SDIO_INT_CMDTMOUT: SDIO CMDTMOUT interrupt
\arg SDIO_INT_DTTMOUT: SDIO DTTMOUT interrupt
\arg SDIO_INT_TXURE: SDIO TXURE interrupt
\arg SDIO_INT_RXORE: SDIO RXORE interrupt
\arg SDIO_INT_CMDRECV: SDIO CMDRECV interrupt
\arg SDIO_INT_CMDSEND: SDIO CMDSEND interrupt
\arg SDIO_INT_DTEND: SDIO DTEND interrupt
\arg SDIO_INT_STBITE: SDIO STBITE interrupt
\arg SDIO_INT_DTBLKEND: SDIO DTBLKEND interrupt
\arg SDIO_INT_CMDRUN: SDIO CMDRUN interrupt
\arg SDIO_INT_TXRUN: SDIO TXRUN interrupt
\arg SDIO_INT_RXRUN: SDIO RXRUN interrupt
\arg SDIO_INT_TFH: SDIO TFH interrupt
\arg SDIO_INT_RFH: SDIO RFH interrupt
\arg SDIO_INT_TFF: SDIO TFF interrupt
\arg SDIO_INT_RFF: SDIO RFF interrupt
\arg SDIO_INT_TFE: SDIO TFE interrupt
\arg SDIO_INT_RFE: SDIO RFE interrupt
\arg SDIO_INT_TXDTVAL: SDIO TXDTVAL interrupt
\arg SDIO_INT_RXDTVAL: SDIO RXDTVAL interrupt
\arg SDIO_INT_SDIOINT: SDIO SDIOINT interrupt
\arg SDIO_INT_ATAEND: SDIO ATAEND interrupt
\param[out] none
\retval FlagStatus: SET or RESET
*/
FlagStatus sdio_interrupt_flag_get(uint32_t int_flag)
{
FlagStatus temp_flag = RESET;
if(RESET != (SDIO_STAT & int_flag)){
temp_flag = SET;
}
return temp_flag;
}
/*!
\brief clear the interrupt pending flags of SDIO
\param[in] int_flag: interrupt flags state of SDIO
\arg SDIO_INT_CCRCERR: command response received (CRC check failed) flag
\arg SDIO_INT_DTCRCERR: data block sent/received (CRC check failed) flag
\arg SDIO_INT_CMDTMOUT: command response timeout flag
\arg SDIO_INT_DTTMOUT: data timeout flag
\arg SDIO_INT_TXURE: transmit FIFO underrun error occurs flag
\arg SDIO_INT_RXORE: received FIFO overrun error occurs flag
\arg SDIO_INT_CMDRECV: command response received (CRC check passed) flag
\arg SDIO_INT_CMDSEND: command sent (no response required) flag
\arg SDIO_INT_DTEND: data end (data counter, SDIO_DATACNT, is zero) flag
\arg SDIO_INT_STBITE: start bit error in the bus flag
\arg SDIO_INT_DTBLKEND: data block sent/received (CRC check passed) flag
\arg SDIO_INT_SDIOINT: SD I/O interrupt received flag
\arg SDIO_INT_ATAEND: CE-ATA command completion signal received (only for CMD61) flag
\param[out] none
\retval none
*/
void sdio_interrupt_flag_clear(uint32_t int_flag)
{
SDIO_INTC = int_flag;
}
/*!
\brief enable the read wait mode(SD I/O only)
\param[in] none
\param[out] none
\retval none
*/
void sdio_readwait_enable(void)
{
SDIO_DATACTL |= SDIO_DATACTL_RWEN;
}
/*!
\brief disable the read wait mode(SD I/O only)
\param[in] none
\param[out] none
\retval none
*/
void sdio_readwait_disable(void)
{
SDIO_DATACTL &= ~SDIO_DATACTL_RWEN;
}
/*!
\brief enable the function that stop the read wait process(SD I/O only)
\param[in] none
\param[out] none
\retval none
*/
void sdio_stop_readwait_enable(void)
{
SDIO_DATACTL |= SDIO_DATACTL_RWSTOP;
}
/*!
\brief disable the function that stop the read wait process(SD I/O only)
\param[in] none
\param[out] none
\retval none
*/
void sdio_stop_readwait_disable(void)
{
SDIO_DATACTL &= ~SDIO_DATACTL_RWSTOP;
}
/*!
\brief set the read wait type(SD I/O only)
\param[in] readwait_type: SD I/O read wait type
\arg SDIO_READWAITTYPE_CLK: read wait control by stopping SDIO_CLK
\arg SDIO_READWAITTYPE_DAT2: read wait control using SDIO_DAT[2]
\param[out] none
\retval none
*/
void sdio_readwait_type_set(uint32_t readwait_type)
{
if(SDIO_READWAITTYPE_CLK == readwait_type){
SDIO_DATACTL |= SDIO_DATACTL_RWTYPE;
}else{
SDIO_DATACTL &= ~SDIO_DATACTL_RWTYPE;
}
}
/*!
\brief enable the SD I/O mode specific operation(SD I/O only)
\param[in] none
\param[out] none
\retval none
*/
void sdio_operation_enable(void)
{
SDIO_DATACTL |= SDIO_DATACTL_IOEN;
}
/*!
\brief disable the SD I/O mode specific operation(SD I/O only)
\param[in] none
\param[out] none
\retval none
*/
void sdio_operation_disable(void)
{
SDIO_DATACTL &= ~SDIO_DATACTL_IOEN;
}
/*!
\brief enable the SD I/O suspend operation(SD I/O only)
\param[in] none
\param[out] none
\retval none
*/
void sdio_suspend_enable(void)
{
SDIO_CMDCTL |= SDIO_CMDCTL_SUSPEND;
}
/*!
\brief disable the SD I/O suspend operation(SD I/O only)
\param[in] none
\param[out] none
\retval none
*/
void sdio_suspend_disable(void)
{
SDIO_CMDCTL &= ~SDIO_CMDCTL_SUSPEND;
}
/*!
\brief enable the CE-ATA command(CE-ATA only)
\param[in] none
\param[out] none
\retval none
*/
void sdio_ceata_command_enable(void)
{
SDIO_CMDCTL |= SDIO_CMDCTL_ATAEN;
}
/*!
\brief disable the CE-ATA command(CE-ATA only)
\param[in] none
\param[out] none
\retval none
*/
void sdio_ceata_command_disable(void)
{
SDIO_CMDCTL &= ~SDIO_CMDCTL_ATAEN;
}
/*!
\brief enable the CE-ATA interrupt(CE-ATA only)
\param[in] none
\param[out] none
\retval none
*/
void sdio_ceata_interrupt_enable(void)
{
SDIO_CMDCTL &= ~SDIO_CMDCTL_NINTEN;
}
/*!
\brief disable the CE-ATA interrupt(CE-ATA only)
\param[in] none
\param[out] none
\retval none
*/
void sdio_ceata_interrupt_disable(void)
{
SDIO_CMDCTL |= SDIO_CMDCTL_NINTEN;
}
/*!
\brief enable the CE-ATA command completion signal(CE-ATA only)
\param[in] none
\param[out] none
\retval none
*/
void sdio_ceata_command_completion_enable(void)
{
SDIO_CMDCTL |= SDIO_CMDCTL_ENCMDC;
}
/*!
\brief disable the CE-ATA command completion signal(CE-ATA only)
\param[in] none
\param[out] none
\retval none
*/
void sdio_ceata_command_completion_disable(void)
{
SDIO_CMDCTL &= ~SDIO_CMDCTL_ENCMDC;
}
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