aica_comm.h File Reference

Shared API for the SH4/AICA interface. More...

Go to the source code of this file.

Data Structures
struct	aica_queue_t
	SH4-to-AICA command queue. More...
struct	aica_cmd_t
	Command queue struct for commanding the AICA from the SH-4. More...
struct	aica_channel_t
	AICA command payload data for AICA_CMD_CHAN. More...

Macros
#define	AICA_CMD_MAX_SIZE   256
	Maximum command size – 256 dwords.
#define	AICA_CMDSTR_CHANNEL(T, CMDR, CHANR)
	Macro for declaring an aica channel command.
#define	AICA_CMDSTR_CHANNEL_SIZE   ((sizeof(aica_cmd_t) + sizeof(aica_channel_t))/4)
	Size of an AICA channel command in words.
#define	AICA_CMD_NONE   0x00000000
	No command (dummy packet)
#define	AICA_CMD_PING   0x00000001
	Check for signs of life
#define	AICA_CMD_CHAN   0x00000002
	Perform a wavetable action
#define	AICA_CMD_SYNC_CLOCK   0x00000003
	Reset the millisecond clock
#define	AICA_RESP_NONE   0x00000000
	No response.
#define	AICA_RESP_PONG   0x00000001
	Response to CMD_PING.
#define	AICA_RESP_DBGPRINT   0x00000002
	Payload is a C string.
#define	AICA_CH_CMD_MASK   0x0000000f
	Mask for commands.
#define	AICA_CH_CMD_NONE   0x00000000
	No command.
#define	AICA_CH_CMD_START   0x00000001
	Start command.
#define	AICA_CH_CMD_STOP   0x00000002
	Stop command.
#define	AICA_CH_CMD_UPDATE   0x00000003
	Update command.
#define	AICA_CH_START_MASK   0x00300000
	Mask for start values.
#define	AICA_CH_START_DELAY   0x00100000
	Set params, but delay key-on.
#define	AICA_CH_START_SYNC   0x00200000
	Set key-on for all selected channels.
#define	AICA_CH_UPDATE_MASK   0x000ff000
	Mask for update values.
#define	AICA_CH_UPDATE_SET_FREQ   0x00001000
	frequency
#define	AICA_CH_UPDATE_SET_VOL   0x00002000
	volume
#define	AICA_CH_UPDATE_SET_PAN   0x00004000
	panning
#define	AICA_SM_16BIT   0 /* Linear PCM 16-bit */
#define	AICA_SM_8BIT   1 /* Linear PCM 8-bit */
#define	AICA_SM_ADPCM   2 /* Yamaha ADPCM 4-bit */
#define	AICA_SM_ADPCM_LS   3 /* Long stream ADPCM 4-bit */

Typedefs
typedef unsigned long	uint8
typedef unsigned long	uint32

Detailed Description

Shared API for the SH4/AICA interface.

Structure and constant definitions for the SH-4/AICA interface. This file is included from both the ARM and SH-4 sides of the fence.

Author

Megan Potter

Ruslan Rostovtsev

Typedef Documentation

uint32

typedef unsigned long uint32

uint8

typedef unsigned long uint8