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-rw-r--r--sound/oss/opl3_hw.h246
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diff --git a/sound/oss/opl3_hw.h b/sound/oss/opl3_hw.h
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-/*
- * 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
- */