fifocommon.h

low level FIFO API. [詳細]

#include "ndstypes.h"

ソースコードを見る。

型定義
typedef void(*	FifoAddressHandlerFunc )(void *address, void *userdata)
typedef void(*	FifoValue32HandlerFunc )(u32 value32, void *userdata)
typedef void(*	FifoDatamsgHandlerFunc )(int num_bytes, void *userdata)
列挙型
enum	FifoChannels {   FIFO_PM = 0,   FIFO_SOUND = 1,   FIFO_SYSTEM = 2,   FIFO_MAXMOD = 3,   FIFO_DSWIFI = 4,   FIFO_RSDV_01 = 5,   FIFO_RSVD_02 = 6,   FIFO_RSVD_03 = 7,   FIFO_USER_01 = 8,   FIFO_USER_02 = 9,   FIFO_USER_03 = 10,   FIFO_USER_04 = 11,   FIFO_USER_05 = 12,   FIFO_USER_06 = 13,   FIFO_USER_07 = 14,   FIFO_USER_08 = 15 }
enum	FifoSoundCommand {   SOUND_SET_PAN = 0 << 20,   SOUND_SET_VOLUME = 1 << 20,   SOUND_SET_FREQ = 2 << 20,   SOUND_SET_WAVEDUTY = 3 << 20,   SOUND_MASTER_ENABLE = 4 << 20,   SOUND_MASTER_DISABLE = 5 << 20,   SOUND_PAUSE = 6 << 20,   SOUND_RESUME = 7 << 20,   SOUND_KILL = 8 << 20,   SOUND_SET_MASTER_VOL = 9 << 20,   MIC_STOP = 10 << 20 }
enum	FifoSystemCommands {   SYS_REQ_TOUCH,   SYS_REQ_KEYS,   SYS_REQ_TIME }
enum	FifoPMCommands {   PM_REQ_ON = (1<<16),   PM_REQ_OFF = (2<<16),   PM_REQ_LED = (3<<16),   PM_REQ_SLEEP = (4<<16),   PM_REQ_SLEEP_DISABLE = (5<<16),   PM_REQ_SLEEP_ENABLE = (6<<16) }
enum	FifoWifiCommands {   WIFI_ENABLE,   WIFI_DISABLE,   WIFI_SYNC,   WIFI_STARTUP }
enum	PM_LedBlinkMode {   PM_LED_ON = (0<<4),   PM_LED_SLEEP = (1<<4),   PM_LED_BLINK = (3<<4) }
	Power Management LED blink mode control bits. [詳細]
関数
bool	fifoInit ()
	Initializes the fifo system.
bool	fifoSendAddress (int channel, void *address)
	Send an address.
bool	fifoSendValue32 (int channel, u32 value32)
	Send a 32bit value.
bool	fifoSendDatamsg (int channel, int num_bytes, u8 *data_array)
	Send a sequence of bytes to the other CPU.
bool	fifoSetAddressHandler (int channel, FifoAddressHandlerFunc newhandler, void *userdata)
	Set user address message callback.
bool	fifoSetValue32Handler (int channel, FifoValue32HandlerFunc newhandler, void *userdata)
	Set user value32 message callback.
bool	fifoSetDatamsgHandler (int channel, FifoDatamsgHandlerFunc newhandler, void *userdata)
bool	fifoCheckAddress (int channel)
bool	fifoCheckValue32 (int channel)
bool	fifoCheckDatamsg (int channel)
int	fifoCheckDatamsgLength (int channel)
void *	fifoGetAddress (int channel)
u32	fifoGetValue32 (int channel)
int	fifoGetDatamsg (int channel, int buffersize, u8 *destbuffer)

---

説明

low level FIFO API.

---

列挙型

enum PM_LedBlinkMode

Power Management LED blink mode control bits.

列挙型の値:

PM_LED_ON	Steady on.
PM_LED_SLEEP	Blinking, mostly off.
PM_LED_BLINK	Blinking, mostly on.

---

関数

fifoInit

(

)

Initializes the fifo system.

Attempts to sync with the other CPU, if it fails, fifo services won't be provided.

覚え書き:

call irqInit() before calling this function.

fifoSendAddress	(	int	channel,
		void *	address
	)

Send an address.

引数:

	channel	channel number to send to
	address	address to send Transmits an address in the range 0x02000000-0x023FFFFF to the other CPU.

fifoSendDatamsg	(	int	channel,
		int	num_bytes,
		u8 *	data_array
	)

Send a sequence of bytes to the other CPU.

引数:

	channel	channel number to send to
	num_bytes	number of bytes to send
	data_array	pointer to data array

num_bytes can be between 0 and FIFO_MAX_DATA_BYTES (see above) - sending 0 bytes can be useful sometimes ...

fifoSendValue32	(	int	channel,
		u32	value32
	)

Send a 32bit value.

引数:

	channel	channel number to send to
	value32	32bit value to send Transmits a 32bit value to the other CPU.

覚え書き:

Transfer is more efficient if the top 8 bits are zero. So sending smaller values or bitmasks that don't include the top bits is preferred.

fifoSetAddressHandler	(	int	channel,
		FifoAddressHandlerFunc	newhandler,
		void *	userdata
	)

Set user address message callback.

引数:

	channel
	newhandler
	userdata	Set a callback to receive incoming address messages on a specific channel.

fifoSetValue32Handler	(	int	channel,
		FifoValue32HandlerFunc	newhandler,
		void *	userdata
	)

Set user value32 message callback.

Set user data message callback.

引数:

	channel
	newhandler
	userdata	Set a callback to receive incoming value32 messages on a specific channel.
	channel
	newhandler
	userdata	Set a callback to receive incoming data messages on a specific channel.