Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/sound/oss/opl3_hw.h b/sound/oss/opl3_hw.h
new file mode 100644
index 0000000..8b11c89
--- /dev/null
+++ b/sound/oss/opl3_hw.h
@@ -0,0 +1,246 @@
+/*
+ * 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
+ */