pas.h

Linux 1.0 内核C源代码 Linux最早版本代码 由Linus Torvalds亲自书写的

/* 																*/
/*	Port addresses and bit fields for the Media Vision Pro AudioSpectrum second generation sound cards.			*/
/* 																*/
/* 	Feel free to use this header file in any application you create that has support for the Media Vision			*/
/*	Pro AudioSpectrum second generation sound cards. Other uses prohibited without prior permission.			*/
/* 																*/
/*										- [e-mail]				*/
/* 																*/
/*	Notes:															*/
/* 																*/
/*	*	All of these ports go into the MVD101 multimedia controller chip, which	then signals the other chips to do	*/
/* 		the actual work. Many ports like the FM ones functionally attach directly to the destination chip though 	*/
/* 		they don't actually have a direct connection.									*/
/* 																*/
/* 	*	The PAS2 series cards have an MVD101 multimedia controller chip, the original PAS cards don't. The original	*/
/* 		PAS cards are pretty defunct now, so no attempt is made here to support them. 					*/
/*																*/
/*	*	The PAS2 series cards are all really different at the hardware level, though the MVD101 hides some of the 	*/
/*		incompatibilities, there still are differences that need to be accounted for.					*/
/*																*/
/*		Card		CD-ROM interface	PCM chip		Mixer chip		FM chip			*/
/* 		PAS Plus	Sony proprietary	(Crystal?) 8-bit DAC	National 		OPL3			*/
/* 		PAS 16		Zilog SCSI		MVA416 16-bit Codec	MVA508 			OPL3			*/
/* 		CDPC		Sony proprietary	Sony 16-bit Codec	National		OPL3			*/
/*		Fusion CD 16	Sony proprietary	MVA416 16-bit Codec	MVA508			OPL3			*/
/*		Fusion CD	Sony proprietary	(Crystal?) 8-bit DAC	National		OPL3			*/
/* 																*/
#define PAS_DEFAULT_BASE		0x388

/*      Symbolic Name			Value 		   R W  Subsystem	Description					*/
#define SPEAKER_CONTROL			0x61		/*   W	PC speaker 	Control register 				*/
#define SPEAKER_CONTROL_GHOST		0x738B		/* R W	PC speaker 	Control ghost register				*/
#define SPEAKER_TIMER_CONTROL		0x43		/*   W  PC speaker 	Timer control register				*/
#define SPEAKER_TIMER_CONTROL_GHOST	0x778B		/* R W  PC speaker 	Timer control register ghost			*/
#define SPEAKER_TIMER_DATA		0x42		/*   W  PC speaker 	Timer data register				*/
#define SPEAKER_TIMER_DATA_GHOST	0x138A		/* R W  PC speaker	Timer data register ghost			*/

#define WARM_BOOT			0x41		/*   W  Control		Used to detect system warm boot	  		*/
#define WARM_BOOT_GHOST			0x7789		/* ? W  Control		Use to get the card to fake warm boot		*/
#define MASTER_DECODE			0x9A01		/*   W  Control		Address >> 2 of card base address		*/
#define PRESCALE_DIVIDER		0xBF8A		/* R W	PCM		Ration between Codec clock and master clock	*/
#define WAIT_STATE			0xBF88		/* R W	Control		Four-bit bus wait-state count (~140ns ea.)	*/
#define BOARD_REV_ID			0x2789		/* R	Control		Extended Board Revision ID			*/

#define SYSTEM_CONFIGURATION_1		0x8388		/* R W	Control								*/
	#define S_C_1_PCS_ENABLE	0x01		/* R W  PC speaker	1=enable, 0=disable PC speaker emulation	*/
	#define S_C_1_PCM_CLOCK_SELECT	0x02		/* R W  PCM		1=14.31818Mhz/12, 0=28.224Mhz master clock	*/ 
	#define S_C_1_FM_EMULATE_CLOCK	0x04		/* R W  FM		1=use 28.224Mhz/2, 0=use 14.31818Mhz clock	*/
	#define S_C_1_PCS_STEREO	0x10 		/* R W  PC speaker	1=enable PC speaker stereo effect, 0=disable	*/
	#define S_C_1_PCS_REALSOUND	0x20		/* R W  PC speaker	1=enable RealSound enhancement, 0=disable	*/
	#define S_C_1_FORCE_EXT_RESET	0x40		/* R W  Control		Force external reset				*/
	#define S_C_1_FORCE_INT_RESET	0x80		/* R W  Control		Force internal reset				*/
#define SYSTEM_CONFIGURATION_2		0x8389		/* R W  Control								*/
	#define S_C_2_PCM_OVERSAMPLING	0x03		/* R W  PCM		00=0x, 01=2x, 10=4x, 11=reserved		*/
	#define S_C_2_PCM_16_BIT	0x04		/* R W	PCM		1=16-bit, 0=8-bit samples			*/
#define SYSTEM_CONFIGURATION_3		0x838A		/* R W	Control								*/
	#define S_C_3_PCM_CLOCK_SELECT	0x02		/* R W	PCM		1=use 1.008Mhz clock for PCM, 0=don't		*/
#define SYSTEM_CONFIGURATION_4		0x838B		/* R W  Control		CD-ROM interface controls			*/

#define IO_CONFIGURATION_1		0xF388		/* R W	Control								*/
	#define I_C_1_BOOT_RESET_ENABLE	0x80		/* R W  Control		1=reset board on warm boot, 0=don't		*/
#define IO_CONFIGURATION_2		0xF389		/* R W  Control								*/
	#define	I_C_2_PCM_DMA_DISABLED	0x00		/* R W  PCM		PCM DMA disabled				*/
#define IO_CONFIGURATION_3		0xF38A		/* R W	Control								*/
	#define I_C_3_PCM_IRQ_DISABLED	0x00		/* R W  PCM		PCM IRQ disabled				*/

#define COMPATIBILITY_ENABLE		0xF788		/* R W  Control								*/
	#define C_E_MPU401_ENABLE	0x01		/* R W	MIDI		1=enable, 0=disable MPU401 MIDI emulation	*/
	#define C_E_SB_ENABLE		0x02		/* R W  PCM		1=enable, 0=disable Sound Blaster emulation	*/
	#define C_E_SB_ACTIVE		0x04		/* R    PCM		"Sound Blaster Interrupt active"		*/
	#define C_E_MPU401_ACTIVE	0x08		/* R	MIDI		"MPU UART mode active"				*/
	#define C_E_PCM_COMPRESSION	0x10		/* R W  PCM		1=enable, 0=disabled compression		*/
#define EMULATION_ADDRESS		0xF789		/* R W  Control								*/
	#define E_A_SB_BASE		0x0f		/* R W  PCM		bits A4-A7 for SB base port			*/
	#define E_A_MPU401_BASE		0xf0		/* R W	MIDI		bits A4-A7 for MPU401 base port 		*/
#define EMULATION_CONFIGURATION		0xFB8A		/* R W			***** Only valid on newer PAS2 cards (?) *****	*/
	#define E_C_MPU401_IRQ		0x07		/* R W	MIDI		MPU401 emulation IRQ				*/
	#define E_C_SB_IRQ		0x38		/* R W  PCM		SB emulation IRQ				*/
	#define E_C_SB_DMA		0xC0		/* R W	PCM		SB emulation DMA				*/

#define OPERATION_MODE_1		0xEF8B		/* R	Control								*/
	#define	O_M_1_CDROM_TYPE	0x03		/* R	CD-ROM		3=SCSI, 2=Sony, 0=no CD-ROM interface		*/
	#define O_M_1_FM_TYPE		0x04		/* R	FM		1=sterero, 0=mono FM chip			*/
	#define O_M_1_PCM_TYPE 		0x08		/* R	PCM		1=16-bit Codec, 0=8-bit DAC			*/
#define OPERATION_MODE_2		0xFF8B		/* R	Control								*/
	#define O_M_2_PCS_ENABLED	0x02		/* R	PC speaker	PC speaker emulation 1=enabled, 0=disabled	*/
	#define O_M_2_BUS_TIMING	0x10		/* R	Control		1=AT bus timing, 0=XT bus timing		*/
	#define O_M_2_BOARD_REVISION	0xe0		/* R	Control		Board revision					*/

#define INTERRUPT_MASK			0x0B8B		/* R W	Control								*/
	#define I_M_FM_LEFT_IRQ_ENABLE	0x01		/* R W	FM		Enable FM left interrupt			*/
	#define I_M_FM_RIGHT_IRQ_ENABLE	0x02		/* R W	FM		Enable FM right interrupt			*/
	#define I_M_PCM_RATE_IRQ_ENABLE	0x04		/* R W	PCM		Enable Sample Rate interrupt			*/
	#define I_M_PCM_BUFFER_IRQ_ENABLE 0x08		/* R W	PCM		Enable Sample Buffer interrupt			*/
	#define I_M_MIDI_IRQ_ENABLE	0x10		/* R W	MIDI		Enable MIDI interrupt				*/
	#define I_M_BOARD_REV		0xE0		/* R	Control		Board revision					*/

#define INTERRUPT_STATUS		0x0B89		/* R W	Control								*/
	#define I_S_FM_LEFT_IRQ		0x01		/* R W	FM		Left FM Interrupt Pending			*/
	#define I_S_FM_RIGHT_IRQ	0x02		/* R W	FM		Right FM Interrupt Pending			*/
	#define I_S_PCM_SAMPLE_RATE_IRQ	0x04		/* R W	PCM		Sample Rate Interrupt Pending			*/
	#define I_S_PCM_SAMPLE_BUFFER_IRQ 0x08		/* R W	PCM		Sample Buffer Interrupt Pending			*/
	#define I_S_MIDI_IRQ		0x10		/* R W	MIDI		MIDI Interrupt Pending				*/
	#define I_S_PCM_CHANNEL		0x20		/* R W	PCM		1=right, 0=left					*/
	#define I_S_RESET_ACTIVE	0x40		/* R W	Control		Reset is active (Timed pulse not finished)	*/
	#define I_S_PCM_CLIPPING	0x80		/* R W	PCM		Clipping has occurred				*/

#define FILTER_FREQUENCY		0x0B8A		/* R W	Control								*/
	#define F_F_FILTER_DISABLED	0x00		/* R W 	Mixer		No filter					*/
#if 0
	struct {					/* R W	Mixer		Filter translation				*/
		unsigned int freq:24;
		unsigned int value:8;
	} F_F_FILTER_translate[] = 
	{ { 73500, 0x01 },	/* 73500Hz - divide by  16 */
	  { 65333, 0x02 },	/* 65333Hz - divide by  18 */
	  { 49000, 0x09 },	/* 49000Hz - divide by  24 */
	  { 36750, 0x11 },	/* 36750Hz - divide by  32 */
	  { 24500, 0x19 },	/* 24500Hz - divide by  48 */
	  { 18375, 0x07 },	/* 18375Hz - divide by  64 */
	  { 12783, 0x0f }, 	/* 12783Hz - divide by  92 */
	  { 12250, 0x04 },	/* 12250Hz - divide by  96 */
	  {  9188, 0x17 }, 	/*  9188Hz - divide by 128 */
	  {  6125, 0x1f },	/*  6125Hz - divide by 192 */
	};
#endif