tmio.h File Reference

TMIO ARM7 module. More...

#include <assert.h>
#include <stddef.h>

Functions
bool	TMIO_cardDetected (void)
	Checks if a MMC/SD card is inserted. More...
bool	TMIO_cardWritable (void)
	Checks if the write protect slider is set to locked. More...
void	TMIO_deinit (void)
	Deinitializes the tmio driver.
void	TMIO_init (void)
	Initializes the tmio driver.
void	TMIO_initPort (TmioPort *const port, const u8 portNum)
	Initializes a tmio port to defaults. More...
void	TMIO_powerupSequence (TmioPort *const port)
	Handles the device specific powerup sequence including the 74 clocks. More...
u32	TMIO_sendCommand (TmioPort *const port, const u16 cmd, const u32 arg)
	Sends a command. More...
static void	TMIO_setBlockLen (TmioPort *const port, u16 blockLen)
	Sets the transfer block length for a tmio port. More...
static void	TMIO_setBuffer (TmioPort *const port, void *buf, const u16 blocks)
	Sets a transfer buffer for a tmio port. More...
static void	TMIO_setBusWidth (TmioPort *const port, const u8 width)
	Sets the bus width for a tmio port. More...
static void	TMIO_setClock (TmioPort *const port, const u32 clk)
	Sets the clock for a tmio port. More...

Detailed Description

TMIO ARM7 module.

Function Documentation

TMIO_cardDetected()

bool TMIO_cardDetected

(

void

)

Checks if a MMC/SD card is inserted.

Returns

Returns true if a card is inserted.

TMIO_cardWritable()

bool TMIO_cardWritable

(

void

)

Checks if the write protect slider is set to locked.

Returns

Returns true if the card is unlocked.

TMIO_initPort()

void TMIO_initPort	(	TmioPort *const	port,
		const u8	portNum
	)

Initializes a tmio port to defaults.

Parameters

	port	A pointer to the port struct.
[in]	portNum	The port number.

TMIO_powerupSequence()

void TMIO_powerupSequence

(

TmioPort *const

port

)

Handles the device specific powerup sequence including the 74 clocks.

Parameters

port	A pointer to the port struct.

TMIO_sendCommand()

u32 TMIO_sendCommand	(	TmioPort *const	port,
		const u16	cmd,
		const u32	arg
	)

Sends a command.

Parameters

	port	A pointer to the port struct.
[in]	cmd	The command.
[in]	arg	The argument for the command.

Returns

Returns 0 on success otherwise see REG_SD_STATUS1/2 bits.

TMIO_setBlockLen()

static void TMIO_setBlockLen ( TmioPort *const  port, u16  blockLen  )

inlinestatic

Sets the transfer block length for a tmio port.

Parameters

	port	A pointer to the port struct.
[in]	blockLen	The block length. Caution: Provide a buffer with multiple of 4 size regardless of block length.

TMIO_setBuffer()

static void TMIO_setBuffer ( TmioPort *const  port, void *  buf, const u16  blocks  )

inlinestatic

Sets a transfer buffer for a tmio port.

Parameters

	port	A pointer to the port struct.
	buf	The buffer pointer.
[in]	blocks	The number of blocks to transfer.

TMIO_setBusWidth()

static void TMIO_setBusWidth ( TmioPort *const  port, const u8  width  )

inlinestatic

Sets the bus width for a tmio port.

Parameters

	port	A pointer to the port struct.
[in]	width	The bus width.

TMIO_setClock()

static void TMIO_setClock ( TmioPort *const  port, const u32  clk  )

inlinestatic

Sets the clock for a tmio port.

Parameters

	port	A pointer to the port struct.
[in]	clk	The target clock in Hz.