forked from Minki/linux
1da177e4c3
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!
340 lines
11 KiB
C
340 lines
11 KiB
C
#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 */
|