sound/oss/opl3_hw.h - android_kernel_oneplus_msm8996 - Gitiles

 /*
  *	opl3_hw.h	- Definitions of the OPL-3 registers
  *
  *
  * Copyright (C) by Hannu Savolainen 1993-1997
  *
  * OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
  * Version 2 (June 1991). See the "COPYING" file distributed with this software
  * for more info.
  *
  *
  *	The OPL-3 mode is switched on by writing 0x01, to the offset 5
  *	of the right side.
  *
  *	Another special register at the right side is at offset 4. It contains
  *	a bit mask defining which voices are used as 4 OP voices.
  *
  *	The percussive mode is implemented in the left side only.
  *
  *	With the above exceptions the both sides can be operated independently.
  *
  *	A 4 OP voice can be created by setting the corresponding
  *	bit at offset 4 of the right side.
  *
  *	For example setting the rightmost bit (0x01) changes the
  *	first voice on the right side to the 4 OP mode. The fourth
  *	voice is made inaccessible.
  *
  *	If a voice is set to the 2 OP mode, it works like 2 OP modes
  *	of the original YM3812 (AdLib). In addition the voice can
  *	be connected the left, right or both stereo channels. It can
  *	even be left unconnected. This works with 4 OP voices also.
  *
  *	The stereo connection bits are located in the FEEDBACK_CONNECTION
  *	register of the voice (0xC0-0xC8). In 4 OP voices these bits are
  *	in the second half of the voice.
  */

 /*
  *	Register numbers for the global registers
  */

 #define TEST_REGISTER				0x01
 #define   ENABLE_WAVE_SELECT		0x20

 #define TIMER1_REGISTER				0x02
 #define TIMER2_REGISTER				0x03
 #define TIMER_CONTROL_REGISTER			0x04	/* Left side */
 #define   IRQ_RESET			0x80
 #define   TIMER1_MASK			0x40
 #define   TIMER2_MASK			0x20
 #define   TIMER1_START			0x01
 #define   TIMER2_START			0x02

 #define CONNECTION_SELECT_REGISTER		0x04	/* Right side */
 #define   RIGHT_4OP_0			0x01
 #define   RIGHT_4OP_1			0x02
 #define   RIGHT_4OP_2			0x04
 #define   LEFT_4OP_0			0x08
 #define   LEFT_4OP_1			0x10
 #define   LEFT_4OP_2			0x20

 #define OPL3_MODE_REGISTER			0x05	/* Right side */
 #define   OPL3_ENABLE			0x01
 #define   OPL4_ENABLE			0x02

 #define KBD_SPLIT_REGISTER			0x08	/* Left side */
 #define   COMPOSITE_SINE_WAVE_MODE	0x80		/* Don't use with OPL-3? */
 #define   KEYBOARD_SPLIT		0x40

 #define PERCOSSION_REGISTER			0xbd	/* Left side only */
 #define   TREMOLO_DEPTH			0x80
 #define   VIBRATO_DEPTH			0x40
 #define	  PERCOSSION_ENABLE		0x20
 #define   BASSDRUM_ON			0x10
 #define   SNAREDRUM_ON			0x08
 #define   TOMTOM_ON			0x04
 #define   CYMBAL_ON			0x02
 #define   HIHAT_ON			0x01

 /*
  *	Offsets to the register banks for operators. To get the
  *	register number just add the operator offset to the bank offset
  *
  *	AM/VIB/EG/KSR/Multiple (0x20 to 0x35)
  */
 #define AM_VIB					0x20
 #define   TREMOLO_ON			0x80
 #define   VIBRATO_ON			0x40
 #define   SUSTAIN_ON			0x20
 #define   KSR				0x10 	/* Key scaling rate */
 #define   MULTIPLE_MASK		0x0f	/* Frequency multiplier */

  /*
   *	KSL/Total level (0x40 to 0x55)
   */
 #define KSL_LEVEL				0x40
 #define   KSL_MASK			0xc0	/* Envelope scaling bits */
 #define   TOTAL_LEVEL_MASK		0x3f	/* Strength (volume) of OP */

 /*
  *	Attack / Decay rate (0x60 to 0x75)
  */
 #define ATTACK_DECAY				0x60
 #define   ATTACK_MASK			0xf0
 #define   DECAY_MASK			0x0f

 /*
  * Sustain level / Release rate (0x80 to 0x95)
  */
 #define SUSTAIN_RELEASE				0x80
 #define   SUSTAIN_MASK			0xf0
 #define   RELEASE_MASK			0x0f

 /*
  * Wave select (0xE0 to 0xF5)
  */
 #define WAVE_SELECT			0xe0

 /*
  *	Offsets to the register banks for voices. Just add to the
  *	voice number to get the register number.
  *
  *	F-Number low bits (0xA0 to 0xA8).
  */
 #define FNUM_LOW				0xa0

 /*
  *	F-number high bits / Key on / Block (octave) (0xB0 to 0xB8)
  */
 #define KEYON_BLOCK					0xb0
 #define	  KEYON_BIT				0x20
 #define	  BLOCKNUM_MASK				0x1c
 #define   FNUM_HIGH_MASK			0x03

 /*
  *	Feedback / Connection (0xc0 to 0xc8)
  *
  *	These registers have two new bits when the OPL-3 mode
  *	is selected. These bits controls connecting the voice
  *	to the stereo channels. For 4 OP voices this bit is
  *	defined in the second half of the voice (add 3 to the
  *	register offset).
  *
  *	For 4 OP voices the connection bit is used in the
  *	both halves (gives 4 ways to connect the operators).
  */
 #define FEEDBACK_CONNECTION				0xc0
 #define   FEEDBACK_MASK				0x0e	/* Valid just for 1st OP of a voice */
 #define   CONNECTION_BIT			0x01
 /*
  *	In the 4 OP mode there is four possible configurations how the
  *	operators can be connected together (in 2 OP modes there is just
  *	AM or FM). The 4 OP connection mode is defined by the rightmost
  *	bit of the FEEDBACK_CONNECTION (0xC0-0xC8) on the both halves.
  *
  *	First half	Second half	Mode
  *
  *					 +---+
  *					 v   |
  *	0		0		>+-1-+--2--3--4-->
  *
  *
  *
  *					 +---+
  *					 |   |
  *	0		1		>+-1-+--2-+
  *						  |->
  *					>--3----4-+
  *
  *					 +---+
  *					 |   |
  *	1		0		>+-1-+-----+
  *						   |->
  *					>--2--3--4-+
  *
  *					 +---+
  *					 |   |
  *	1		1		>+-1-+--+
  *						|
  *					>--2--3-+->
  *						|
  *					>--4----+
  */
 #define   STEREO_BITS				0x30	/* OPL-3 only */
 #define     VOICE_TO_LEFT		0x10
 #define     VOICE_TO_RIGHT		0x20

 /*
  * 	Definition table for the physical voices
  */

 struct physical_voice_info {
 		unsigned char voice_num;
 		unsigned char voice_mode; /* 0=unavailable, 2=2 OP, 4=4 OP */
 		unsigned short ioaddr; /* I/O port (left or right side) */
 		unsigned char op[4]; /* Operator offsets */
 	};

 /*
  *	There is 18 possible 2 OP voices
  *	(9 in the left and 9 in the right).
  *	The first OP is the modulator and 2nd is the carrier.
  *
  *	The first three voices in the both sides may be connected
  *	with another voice to a 4 OP voice. For example voice 0
  *	can be connected with voice 3. The operators of voice 3 are
  *	used as operators 3 and 4 of the new 4 OP voice.
  *	In this case the 2 OP voice number 0 is the 'first half' and
  *	voice 3 is the second.
  */

 #define USE_LEFT	0
 #define USE_RIGHT	1

 static struct physical_voice_info pv_map[18] =
 {
 /*       No Mode Side		OP1	OP2	OP3   OP4	*/
 /*	---------------------------------------------------	*/
 	{ 0,  2, USE_LEFT,	{0x00,	0x03,	0x08, 0x0b}},
 	{ 1,  2, USE_LEFT,	{0x01,	0x04,	0x09, 0x0c}},
 	{ 2,  2, USE_LEFT,	{0x02,	0x05,	0x0a, 0x0d}},

 	{ 3,  2, USE_LEFT,	{0x08,	0x0b,	0x00, 0x00}},
 	{ 4,  2, USE_LEFT,	{0x09,	0x0c,	0x00, 0x00}},
 	{ 5,  2, USE_LEFT,	{0x0a,	0x0d,	0x00, 0x00}},

 	{ 6,  2, USE_LEFT,	{0x10,	0x13,	0x00, 0x00}}, /* Used by percussive voices */
 	{ 7,  2, USE_LEFT,	{0x11,	0x14,	0x00, 0x00}}, /* if the percussive mode */
 	{ 8,  2, USE_LEFT,	{0x12,	0x15,	0x00, 0x00}}, /* is selected */

 	{ 0,  2, USE_RIGHT,	{0x00,	0x03,	0x08, 0x0b}},
 	{ 1,  2, USE_RIGHT,	{0x01,	0x04,	0x09, 0x0c}},
 	{ 2,  2, USE_RIGHT,	{0x02,	0x05,	0x0a, 0x0d}},

 	{ 3,  2, USE_RIGHT,	{0x08,	0x0b,	0x00, 0x00}},
 	{ 4,  2, USE_RIGHT,	{0x09,	0x0c,	0x00, 0x00}},
 	{ 5,  2, USE_RIGHT,	{0x0a,	0x0d,	0x00, 0x00}},

 	{ 6,  2, USE_RIGHT,	{0x10,	0x13,	0x00, 0x00}},
 	{ 7,  2, USE_RIGHT,	{0x11,	0x14,	0x00, 0x00}},
 	{ 8,  2, USE_RIGHT,	{0x12,	0x15,	0x00, 0x00}}
 };
 /*
  *	DMA buffer calls
  */
	/*
	* opl3_hw.h - Definitions of the OPL-3 registers
	*
	*
	* Copyright (C) by Hannu Savolainen 1993-1997
	*
	* OSS/Free for Linux is distributed under the GNU GENERAL PUBLIC LICENSE (GPL)
	* Version 2 (June 1991). See the "COPYING" file distributed with this software
	* for more info.
	*
	*
	* The OPL-3 mode is switched on by writing 0x01, to the offset 5
	* of the right side.
	*
	* Another special register at the right side is at offset 4. It contains
	* a bit mask defining which voices are used as 4 OP voices.
	*
	* The percussive mode is implemented in the left side only.
	*
	* With the above exceptions the both sides can be operated independently.
	*
	* A 4 OP voice can be created by setting the corresponding
	* bit at offset 4 of the right side.
	*
	* For example setting the rightmost bit (0x01) changes the
	* first voice on the right side to the 4 OP mode. The fourth
	* voice is made inaccessible.
	*
	* If a voice is set to the 2 OP mode, it works like 2 OP modes
	* of the original YM3812 (AdLib). In addition the voice can
	* be connected the left, right or both stereo channels. It can
	* even be left unconnected. This works with 4 OP voices also.
	*
	* The stereo connection bits are located in the FEEDBACK_CONNECTION
	* register of the voice (0xC0-0xC8). In 4 OP voices these bits are
	* in the second half of the voice.
	*/

	/*
	* Register numbers for the global registers
	*/

	#define TEST_REGISTER 0x01
	#define ENABLE_WAVE_SELECT 0x20

	#define TIMER1_REGISTER 0x02
	#define TIMER2_REGISTER 0x03
	#define TIMER_CONTROL_REGISTER 0x04 /* Left side */
	#define IRQ_RESET 0x80
	#define TIMER1_MASK 0x40
	#define TIMER2_MASK 0x20
	#define TIMER1_START 0x01
	#define TIMER2_START 0x02

	#define CONNECTION_SELECT_REGISTER 0x04 /* Right side */
	#define RIGHT_4OP_0 0x01
	#define RIGHT_4OP_1 0x02
	#define RIGHT_4OP_2 0x04
	#define LEFT_4OP_0 0x08
	#define LEFT_4OP_1 0x10
	#define LEFT_4OP_2 0x20

	#define OPL3_MODE_REGISTER 0x05 /* Right side */
	#define OPL3_ENABLE 0x01
	#define OPL4_ENABLE 0x02

	#define KBD_SPLIT_REGISTER 0x08 /* Left side */
	#define COMPOSITE_SINE_WAVE_MODE 0x80 /* Don't use with OPL-3? */
	#define KEYBOARD_SPLIT 0x40

	#define PERCOSSION_REGISTER 0xbd /* Left side only */
	#define TREMOLO_DEPTH 0x80
	#define VIBRATO_DEPTH 0x40
	#define PERCOSSION_ENABLE 0x20
	#define BASSDRUM_ON 0x10
	#define SNAREDRUM_ON 0x08
	#define TOMTOM_ON 0x04
	#define CYMBAL_ON 0x02
	#define HIHAT_ON 0x01

	/*
	* Offsets to the register banks for operators. To get the
	* register number just add the operator offset to the bank offset
	*
	* AM/VIB/EG/KSR/Multiple (0x20 to 0x35)
	*/
	#define AM_VIB 0x20
	#define TREMOLO_ON 0x80
	#define VIBRATO_ON 0x40
	#define SUSTAIN_ON 0x20
	#define KSR 0x10 /* Key scaling rate */
	#define MULTIPLE_MASK 0x0f /* Frequency multiplier */

	/*
	* KSL/Total level (0x40 to 0x55)
	*/
	#define KSL_LEVEL 0x40
	#define KSL_MASK 0xc0 /* Envelope scaling bits */
	#define TOTAL_LEVEL_MASK 0x3f /* Strength (volume) of OP */

	/*
	* Attack / Decay rate (0x60 to 0x75)
	*/
	#define ATTACK_DECAY 0x60
	#define ATTACK_MASK 0xf0
	#define DECAY_MASK 0x0f

	/*
	* Sustain level / Release rate (0x80 to 0x95)
	*/
	#define SUSTAIN_RELEASE 0x80
	#define SUSTAIN_MASK 0xf0
	#define RELEASE_MASK 0x0f

	/*
	* Wave select (0xE0 to 0xF5)
	*/
	#define WAVE_SELECT 0xe0

	/*
	* Offsets to the register banks for voices. Just add to the
	* voice number to get the register number.
	*
	* F-Number low bits (0xA0 to 0xA8).
	*/
	#define FNUM_LOW 0xa0

	/*
	* F-number high bits / Key on / Block (octave) (0xB0 to 0xB8)
	*/
	#define KEYON_BLOCK 0xb0
	#define KEYON_BIT 0x20
	#define BLOCKNUM_MASK 0x1c
	#define FNUM_HIGH_MASK 0x03

	/*
	* Feedback / Connection (0xc0 to 0xc8)
	*
	* These registers have two new bits when the OPL-3 mode
	* is selected. These bits controls connecting the voice
	* to the stereo channels. For 4 OP voices this bit is
	* defined in the second half of the voice (add 3 to the
	* register offset).
	*
	* For 4 OP voices the connection bit is used in the
	* both halves (gives 4 ways to connect the operators).
	*/
	#define FEEDBACK_CONNECTION 0xc0
	#define FEEDBACK_MASK 0x0e /* Valid just for 1st OP of a voice */
	#define CONNECTION_BIT 0x01
	/*
	* In the 4 OP mode there is four possible configurations how the
	* operators can be connected together (in 2 OP modes there is just
	* AM or FM). The 4 OP connection mode is defined by the rightmost
	* bit of the FEEDBACK_CONNECTION (0xC0-0xC8) on the both halves.
	*
	* First half Second half Mode
	*
	* +---+
	* v \|
	* 0 0 >+-1-+--2--3--4-->
	*
	*
	*
	* +---+
	* \| \|
	* 0 1 >+-1-+--2-+
	* \|->
	* >--3----4-+
	*
	* +---+
	* \| \|
	* 1 0 >+-1-+-----+
	* \|->
	* >--2--3--4-+
	*
	* +---+
	* \| \|
	* 1 1 >+-1-+--+
	* \|
	* >--2--3-+->
	* \|
	* >--4----+
	*/
	#define STEREO_BITS 0x30 /* OPL-3 only */
	#define VOICE_TO_LEFT 0x10
	#define VOICE_TO_RIGHT 0x20

	/*
	* Definition table for the physical voices
	*/

	struct physical_voice_info {
	unsigned char voice_num;
	unsigned char voice_mode; /* 0=unavailable, 2=2 OP, 4=4 OP */
	unsigned short ioaddr; /* I/O port (left or right side) */
	unsigned char op[4]; /* Operator offsets */
	};

	/*
	* There is 18 possible 2 OP voices
	* (9 in the left and 9 in the right).
	* The first OP is the modulator and 2nd is the carrier.
	*
	* The first three voices in the both sides may be connected
	* with another voice to a 4 OP voice. For example voice 0
	* can be connected with voice 3. The operators of voice 3 are
	* used as operators 3 and 4 of the new 4 OP voice.
	* In this case the 2 OP voice number 0 is the 'first half' and
	* voice 3 is the second.
	*/

	#define USE_LEFT 0
	#define USE_RIGHT 1

	static struct physical_voice_info pv_map[18] =
	{
	/* No Mode Side OP1 OP2 OP3 OP4 */
	/* --------------------------------------------------- */
	{ 0, 2, USE_LEFT, {0x00, 0x03, 0x08, 0x0b}},
	{ 1, 2, USE_LEFT, {0x01, 0x04, 0x09, 0x0c}},
	{ 2, 2, USE_LEFT, {0x02, 0x05, 0x0a, 0x0d}},

	{ 3, 2, USE_LEFT, {0x08, 0x0b, 0x00, 0x00}},
	{ 4, 2, USE_LEFT, {0x09, 0x0c, 0x00, 0x00}},
	{ 5, 2, USE_LEFT, {0x0a, 0x0d, 0x00, 0x00}},

	{ 6, 2, USE_LEFT, {0x10, 0x13, 0x00, 0x00}}, /* Used by percussive voices */
	{ 7, 2, USE_LEFT, {0x11, 0x14, 0x00, 0x00}}, /* if the percussive mode */
	{ 8, 2, USE_LEFT, {0x12, 0x15, 0x00, 0x00}}, /* is selected */

	{ 0, 2, USE_RIGHT, {0x00, 0x03, 0x08, 0x0b}},
	{ 1, 2, USE_RIGHT, {0x01, 0x04, 0x09, 0x0c}},
	{ 2, 2, USE_RIGHT, {0x02, 0x05, 0x0a, 0x0d}},

	{ 3, 2, USE_RIGHT, {0x08, 0x0b, 0x00, 0x00}},
	{ 4, 2, USE_RIGHT, {0x09, 0x0c, 0x00, 0x00}},
	{ 5, 2, USE_RIGHT, {0x0a, 0x0d, 0x00, 0x00}},

	{ 6, 2, USE_RIGHT, {0x10, 0x13, 0x00, 0x00}},
	{ 7, 2, USE_RIGHT, {0x11, 0x14, 0x00, 0x00}},
	{ 8, 2, USE_RIGHT, {0x12, 0x15, 0x00, 0x00}}
	};
	/*
	* DMA buffer calls
	*/