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/include/sound/opl3.h b/include/sound/opl3.h
new file mode 100644
index 0000000..19f657d
--- /dev/null
+++ b/include/sound/opl3.h
@@ -0,0 +1,339 @@
+#ifndef __SOUND_OPL3_H
+#define __SOUND_OPL3_H
+
+/*
+ * Definitions of the OPL-3 registers.
+ *
+ * Copyright (c) by Jaroslav Kysela <perex@suse.cz>,
+ * Hannu Savolainen 1993-1996
+ *
+ *
+ * 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.
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ *
+ */
+
+#include "driver.h"
+#include <linux/time.h>
+#include "core.h"
+#include "hwdep.h"
+#include "timer.h"
+#include "seq_midi_emul.h"
+#ifdef CONFIG_SND_SEQUENCER_OSS
+#include "seq_oss.h"
+#include "seq_oss_legacy.h"
+#endif
+#include "seq_device.h"
+#include "ainstr_fm.h"
+
+/*
+ * Register numbers for the global registers
+ */
+
+#define OPL3_REG_TEST 0x01
+#define OPL3_ENABLE_WAVE_SELECT 0x20
+
+#define OPL3_REG_TIMER1 0x02
+#define OPL3_REG_TIMER2 0x03
+#define OPL3_REG_TIMER_CONTROL 0x04 /* Left side */
+#define OPL3_IRQ_RESET 0x80
+#define OPL3_TIMER1_MASK 0x40
+#define OPL3_TIMER2_MASK 0x20
+#define OPL3_TIMER1_START 0x01
+#define OPL3_TIMER2_START 0x02
+
+#define OPL3_REG_CONNECTION_SELECT 0x04 /* Right side */
+#define OPL3_LEFT_4OP_0 0x01
+#define OPL3_LEFT_4OP_1 0x02
+#define OPL3_LEFT_4OP_2 0x04
+#define OPL3_RIGHT_4OP_0 0x08
+#define OPL3_RIGHT_4OP_1 0x10
+#define OPL3_RIGHT_4OP_2 0x20
+
+#define OPL3_REG_MODE 0x05 /* Right side */
+#define OPL3_OPL3_ENABLE 0x01 /* OPL3 mode */
+#define OPL3_OPL4_ENABLE 0x02 /* OPL4 mode */
+
+#define OPL3_REG_KBD_SPLIT 0x08 /* Left side */
+#define OPL3_COMPOSITE_SINE_WAVE_MODE 0x80 /* Don't use with OPL-3? */
+#define OPL3_KEYBOARD_SPLIT 0x40
+
+#define OPL3_REG_PERCUSSION 0xbd /* Left side only */
+#define OPL3_TREMOLO_DEPTH 0x80
+#define OPL3_VIBRATO_DEPTH 0x40
+#define OPL3_PERCUSSION_ENABLE 0x20
+#define OPL3_BASSDRUM_ON 0x10
+#define OPL3_SNAREDRUM_ON 0x08
+#define OPL3_TOMTOM_ON 0x04
+#define OPL3_CYMBAL_ON 0x02
+#define OPL3_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 OPL3_REG_AM_VIB 0x20
+#define OPL3_TREMOLO_ON 0x80
+#define OPL3_VIBRATO_ON 0x40
+#define OPL3_SUSTAIN_ON 0x20
+#define OPL3_KSR 0x10 /* Key scaling rate */
+#define OPL3_MULTIPLE_MASK 0x0f /* Frequency multiplier */
+
+ /*
+ * KSL/Total level (0x40 to 0x55)
+ */
+#define OPL3_REG_KSL_LEVEL 0x40
+#define OPL3_KSL_MASK 0xc0 /* Envelope scaling bits */
+#define OPL3_TOTAL_LEVEL_MASK 0x3f /* Strength (volume) of OP */
+
+/*
+ * Attack / Decay rate (0x60 to 0x75)
+ */
+#define OPL3_REG_ATTACK_DECAY 0x60
+#define OPL3_ATTACK_MASK 0xf0
+#define OPL3_DECAY_MASK 0x0f
+
+/*
+ * Sustain level / Release rate (0x80 to 0x95)
+ */
+#define OPL3_REG_SUSTAIN_RELEASE 0x80
+#define OPL3_SUSTAIN_MASK 0xf0
+#define OPL3_RELEASE_MASK 0x0f
+
+/*
+ * Wave select (0xE0 to 0xF5)
+ */
+#define OPL3_REG_WAVE_SELECT 0xe0
+#define OPL3_WAVE_SELECT_MASK 0x07
+
+/*
+ * 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 OPL3_REG_FNUM_LOW 0xa0
+
+/*
+ * F-number high bits / Key on / Block (octave) (0xB0 to 0xB8)
+ */
+#define OPL3_REG_KEYON_BLOCK 0xb0
+#define OPL3_KEYON_BIT 0x20
+#define OPL3_BLOCKNUM_MASK 0x1c
+#define OPL3_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 OPL3_REG_FEEDBACK_CONNECTION 0xc0
+#define OPL3_FEEDBACK_MASK 0x0e /* Valid just for 1st OP of a voice */
+#define OPL3_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 OPL3_STEREO_BITS 0x30 /* OPL-3 only */
+#define OPL3_VOICE_TO_LEFT 0x10
+#define OPL3_VOICE_TO_RIGHT 0x20
+
+/*
+
+ */
+
+#define OPL3_LEFT 0x0000
+#define OPL3_RIGHT 0x0100
+
+#define OPL3_HW_AUTO 0x0000
+#define OPL3_HW_OPL2 0x0200
+#define OPL3_HW_OPL3 0x0300
+#define OPL3_HW_OPL3_SV 0x0301 /* S3 SonicVibes */
+#define OPL3_HW_OPL3_CS 0x0302 /* CS4232/CS4236+ */
+#define OPL3_HW_OPL3_FM801 0x0303 /* FM801 */
+#define OPL3_HW_OPL3_CS4281 0x0304 /* CS4281 */
+#define OPL3_HW_OPL3_PC98 0x0305 /* PC9800 */
+#define OPL3_HW_OPL4 0x0400 /* YMF278B/YMF295 */
+#define OPL3_HW_OPL4_ML 0x0401 /* YMF704/YMF721 */
+#define OPL3_HW_MASK 0xff00
+
+#define MAX_OPL2_VOICES 9
+#define MAX_OPL3_VOICES 18
+
+typedef struct snd_opl3 opl3_t;
+
+/*
+ * A structure to keep track of each hardware voice
+ */
+typedef struct snd_opl3_voice {
+ int state; /* status */
+#define SNDRV_OPL3_ST_OFF 0 /* Not playing */
+#define SNDRV_OPL3_ST_ON_2OP 1 /* 2op voice is allocated */
+#define SNDRV_OPL3_ST_ON_4OP 2 /* 4op voice is allocated */
+#define SNDRV_OPL3_ST_NOT_AVAIL -1 /* voice is not available */
+
+ unsigned int time; /* An allocation time */
+ unsigned char note; /* Note currently assigned to this voice */
+
+ unsigned long note_off; /* note-off time */
+ int note_off_check; /* check note-off time */
+
+ unsigned char keyon_reg; /* KON register shadow */
+
+ snd_midi_channel_t *chan; /* Midi channel for this note */
+} snd_opl3_voice_t;
+
+struct snd_opl3 {
+ unsigned long l_port;
+ unsigned long r_port;
+ struct resource *res_l_port;
+ struct resource *res_r_port;
+ unsigned short hardware;
+ /* hardware access */
+ void (*command) (opl3_t * opl3, unsigned short cmd, unsigned char val);
+ unsigned short timer_enable;
+ int seq_dev_num; /* sequencer device number */
+ snd_timer_t *timer1;
+ snd_timer_t *timer2;
+ spinlock_t timer_lock;
+
+ void *private_data;
+ void (*private_free)(opl3_t *);
+
+ spinlock_t reg_lock;
+ snd_card_t *card; /* The card that this belongs to */
+ int used; /* usage flag - exclusive */
+ unsigned char fm_mode; /* OPL mode, see SNDRV_DM_FM_MODE_XXX */
+ unsigned char rhythm; /* percussion mode flag */
+ unsigned char max_voices; /* max number of voices */
+#if defined(CONFIG_SND_SEQUENCER) || defined(CONFIG_SND_SEQUENCER_MODULE)
+#define SNDRV_OPL3_MODE_SYNTH 0 /* OSS - voices allocated by application */
+#define SNDRV_OPL3_MODE_SEQ 1 /* ALSA - driver handles voice allocation */
+ int synth_mode; /* synth mode */
+ int seq_client;
+
+ snd_seq_device_t *seq_dev; /* sequencer device */
+ snd_midi_channel_set_t * chset;
+
+#ifdef CONFIG_SND_SEQUENCER_OSS
+ snd_seq_device_t *oss_seq_dev; /* OSS sequencer device */
+ snd_midi_channel_set_t * oss_chset;
+#endif
+
+ snd_seq_kinstr_ops_t fm_ops;
+ snd_seq_kinstr_list_t *ilist;
+
+ snd_opl3_voice_t voices[MAX_OPL3_VOICES]; /* Voices (OPL3 'channel') */
+ int use_time; /* allocation counter */
+
+ unsigned short connection_reg; /* connection reg shadow */
+ unsigned char drum_reg; /* percussion reg shadow */
+
+ spinlock_t voice_lock; /* Lock for voice access */
+
+ struct timer_list tlist; /* timer for note-offs and effects */
+ int sys_timer_status; /* system timer run status */
+ spinlock_t sys_timer_lock; /* Lock for system timer access */
+#endif
+ struct semaphore access_mutex; /* locking */
+};
+
+/* opl3.c */
+void snd_opl3_interrupt(snd_hwdep_t * hw);
+int snd_opl3_new(snd_card_t *card, unsigned short hardware, opl3_t **ropl3);
+int snd_opl3_init(opl3_t *opl3);
+int snd_opl3_create(snd_card_t * card,
+ unsigned long l_port, unsigned long r_port,
+ unsigned short hardware,
+ int integrated,
+ opl3_t ** opl3);
+int snd_opl3_timer_new(opl3_t * opl3, int timer1_dev, int timer2_dev);
+int snd_opl3_hwdep_new(opl3_t * opl3, int device, int seq_device,
+ snd_hwdep_t ** rhwdep);
+
+/* opl3_synth */
+int snd_opl3_open(snd_hwdep_t * hw, struct file *file);
+int snd_opl3_ioctl(snd_hwdep_t * hw, struct file *file,
+ unsigned int cmd, unsigned long arg);
+int snd_opl3_release(snd_hwdep_t * hw, struct file *file);
+
+void snd_opl3_reset(opl3_t * opl3);
+
+#endif /* __SOUND_OPL3_H */