mmc_hal.c File Reference

#include "user_config.h"
#include "mathio.h"
#include "time.h"
#include "timer.h"
#include "fatfs.h"

Go to the source code of this file.

Functions
static void	mmc_task (void)
	1000HZ timer task More...
MEMSPACE void	mmc_install_timer (void)
	Install MMC timer task: mmc_task() More...
void	mmc_spi_init ()
	MMC SPI setup and chip select. More...
void	mmc_spi_begin ()
	MMC SPI setup and chip select. More...
void	mmc_spi_end ()
	MMC SPI end and chip deselect. More...
void	mmc_slow ()
	MMC set slow SPI bus speed Only called when deselected. More...
void	mmc_fast ()
	MMC fast SPI bus speed Only called when deselected. More...
void	mmc_spi_TX_buffer (const uint8_t *data, int count)
	SPI write buffer. More...
void	mmc_spi_RX_buffer (const uint8_t *data, int count)
	SPI read buffer. More...
uint8_t	mmc_spi_TXRX (uint8_t data)
	SPI read and write 1 byte. More...
MEMSPACE void	mmc_set_ms_timeout (uint16_t ms)
	Set MMC timeout timer in Milliseconds. More...
MEMSPACE int	mmc_test_timeout ()
	Wait for timeout. More...
MEMSPACE void	mmc_ms_wait (int ms)
	Wait for time in milliseconds. More...
MEMSPACE int	mmc_init (int verbose)
	Initialize MMC and FatFs interface, display diagnostics. More...
MEMSPACE void	mmc_power_on ()
	MMC Power ON. More...
MEMSPACE void	mmc_power_off ()
	MMC Power OFF. More...
MEMSPACE int	mmc_ins_status ()
	MMC Card Inserted status. More...
MEMSPACE int	mmc_wp_status ()
	MMC Card Write Protect status. More...

Variables
DSTATUS	Stat
uint16_t	_mmc_timeout = 0
	MMC timeout counter in ms. More...
uint32_t	_mmc_clock = 0
	MMC SPI CLOCK cache. More...
uint16_t	_mmc_pre = 0
static int	mmc_init_flag = 0
	has the MMC interface been initialized yet ? More...

Function Documentation

mmc_fast()

void mmc_fast

(

)

MMC fast SPI bus speed Only called when deselected.

• Used during normal file IO phases

  Returns

  void

Definition at line 129 of file mmc_hal.c.

mmc_init()

MEMSPACE int mmc_init

(

int

verbose

)

Initialize MMC and FatFs interface, display diagnostics.

Parameters

[in]

verbose

display initialisation messages

Returns

Definition at line 219 of file mmc_hal.c.

Referenced by fatfs_tests(), main(), and open().

mmc_ins_status()

MEMSPACE int mmc_ins_status

(

)

MMC Card Inserted status.

• We do not detect card insert status in this project.

  Returns

  1 card inserted

Definition at line 328 of file mmc_hal.c.

Referenced by gpib_error_test(), mmc_init(), and mmc_task().

mmc_install_timer()

MEMSPACE void mmc_install_timer

(

void

)

Install MMC timer task: mmc_task()

See also

mmc_task()

Returns

void

Definition at line 82 of file mmc_hal.c.

Referenced by mmc_init().

mmc_ms_wait()

MEMSPACE void mmc_ms_wait

(

int

ms

)

Wait for time in milliseconds.

Parameters

[in]

ms

timeout in Milliseconds

Definition at line 204 of file mmc_hal.c.

mmc_power_off()

MEMSPACE void mmc_power_off

(

)

MMC Power OFF.

Returns

void

Definition at line 317 of file mmc_hal.c.

Referenced by power_off().

mmc_power_on()

MEMSPACE void mmc_power_on

(

)

MMC Power ON.

Returns

void

Definition at line 308 of file mmc_hal.c.

Referenced by power_on().

mmc_set_ms_timeout()

MEMSPACE void mmc_set_ms_timeout

(

uint16_t

ms

)

Set MMC timeout timer in Milliseconds.

Parameters

[in]

ms

timeout in Milliseconds

See also

mmc_test_timeout ( )

Returns

void

Definition at line 169 of file mmc_hal.c.

Referenced by mmc_disk_initialize(), mmc_ms_wait(), rcvr_datablock(), and wait_ready().

mmc_slow()

void mmc_slow

(

)

MMC set slow SPI bus speed Only called when deselected.

• Used during card detect phase

  Returns

  void

Definition at line 119 of file mmc_hal.c.

Referenced by mmc_spi_init().

mmc_spi_begin()

void mmc_spi_begin

(

)

MMC SPI setup and chip select.

Returns

void

Definition at line 101 of file mmc_hal.c.

mmc_spi_end()

void mmc_spi_end

(

)

MMC SPI end and chip deselect.

Returns

void

Definition at line 109 of file mmc_hal.c.

mmc_spi_init()

void mmc_spi_init

(

)

MMC SPI setup and chip select.

Returns

void

Definition at line 92 of file mmc_hal.c.

Referenced by mmc_init().

mmc_spi_RX_buffer()

void mmc_spi_RX_buffer	(	const uint8_t *	data,
		int	count
	)

SPI read buffer.

Parameters

[in]	*data	transmit buffer
[in]	count	number of bytes to write

Returns

void

Definition at line 149 of file mmc_hal.c.

Referenced by rcvr_spi_multi().

mmc_spi_TX_buffer()

void mmc_spi_TX_buffer	(	const uint8_t *	data,
		int	count
	)

SPI write buffer.

Parameters

[in]	*data	transmit buffer
[in]	count	number of bytes to write

Returns

void

Definition at line 139 of file mmc_hal.c.

Referenced by xmit_spi_multi().

mmc_spi_TXRX()

uint8_t mmc_spi_TXRX

(

uint8_t

data

)

SPI read and write 1 byte.

Parameters

[in]

data

value to transmit

Returns

uint8_t value read

Definition at line 158 of file mmc_hal.c.

Referenced by xchg_spi().

mmc_task()

static void mmc_task ( void  )

static

1000HZ timer task

Returns

void

Definition at line 59 of file mmc_hal.c.

Referenced by mmc_install_timer().

mmc_test_timeout()

MEMSPACE int mmc_test_timeout

(

)

Wait for timeout.

Returns

1 ready

0 timeout

Definition at line 181 of file mmc_hal.c.

Referenced by mmc_disk_initialize(), mmc_ms_wait(), rcvr_datablock(), and wait_ready().

mmc_wp_status()

MEMSPACE int mmc_wp_status

(

)

MMC Card Write Protect status.

• We do not detect card write protect status in this project.

  Returns

  0 == not write protected

Definition at line 344 of file mmc_hal.c.

Referenced by gpib_file_init(), and SS80_locate_and_write().

Variable Documentation

_mmc_clock

uint32_t _mmc_clock = 0

MMC SPI CLOCK cache.

Definition at line 50 of file mmc_hal.c.

Referenced by mmc_fast(), mmc_slow(), and mmc_spi_begin().

_mmc_pre

uint16_t _mmc_pre = 0

Definition at line 53 of file mmc_hal.c.

Referenced by mmc_task().

_mmc_timeout

uint16_t _mmc_timeout = 0

MMC timeout counter in ms.

Definition at line 47 of file mmc_hal.c.

Referenced by mmc_install_timer(), mmc_set_ms_timeout(), mmc_task(), and mmc_test_timeout().

mmc_init_flag

int mmc_init_flag = 0

static

has the MMC interface been initialized yet ?

Definition at line 213 of file mmc_hal.c.

Referenced by mmc_init().

Stat

DSTATUS Stat

Definition at line 78 of file mmc.c.

Referenced by mmc_disk_initialize(), mmc_disk_read(), mmc_disk_status(), mmc_disk_timerproc(), mmc_init(), and mmc_test_timeout().