awe_wave.c
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上传日期:2013-04-10
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- /*
- * sound/awe_wave.c
- *
- * The low level driver for the AWE32/SB32/AWE64 wave table synth.
- * version 0.4.4; Jan. 4, 2000
- *
- * Copyright (C) 1996-2000 Takashi Iwai
- *
- * 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., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- #include <linux/awe_voice.h>
- #include <linux/config.h>
- #include <linux/init.h>
- #include <linux/module.h>
- #include <linux/string.h>
- #if defined CONFIG_ISAPNP || defined CONFIG_ISAPNP_MODULE
- #include <linux/isapnp.h>
- #endif
- #include "sound_config.h"
- #include "awe_wave.h"
- #include "awe_hw.h"
- #ifdef AWE_HAS_GUS_COMPATIBILITY
- #include "tuning.h"
- #include <linux/ultrasound.h>
- #endif
- /*
- * debug message
- */
- #ifdef AWE_DEBUG_ON
- #define DEBUG(LVL,XXX) {if (ctrls[AWE_MD_DEBUG_MODE] > LVL) { XXX; }}
- #define ERRMSG(XXX) {if (ctrls[AWE_MD_DEBUG_MODE]) { XXX; }}
- #define FATALERR(XXX) XXX
- #else
- #define DEBUG(LVL,XXX) /**/
- #define ERRMSG(XXX) XXX
- #define FATALERR(XXX) XXX
- #endif
- /*
- * bank and voice record
- */
- typedef struct _sf_list sf_list;
- typedef struct _awe_voice_list awe_voice_list;
- typedef struct _awe_sample_list awe_sample_list;
- /* soundfont record */
- struct _sf_list {
- unsigned short sf_id; /* id number */
- unsigned short type; /* lock & shared flags */
- int num_info; /* current info table index */
- int num_sample; /* current sample table index */
- int mem_ptr; /* current word byte pointer */
- awe_voice_list *infos, *last_infos; /* instruments */
- awe_sample_list *samples, *last_samples; /* samples */
- #ifdef AWE_ALLOW_SAMPLE_SHARING
- sf_list *shared; /* shared list */
- unsigned char name[AWE_PATCH_NAME_LEN]; /* sharing id */
- #endif
- sf_list *next, *prev;
- };
- /* instrument list */
- struct _awe_voice_list {
- awe_voice_info v; /* instrument information */
- sf_list *holder; /* parent sf_list of this record */
- unsigned char bank, instr; /* preset number information */
- char type, disabled; /* type=normal/mapped, disabled=boolean */
- awe_voice_list *next; /* linked list with same sf_id */
- awe_voice_list *next_instr; /* instrument list */
- awe_voice_list *next_bank; /* hash table list */
- };
- /* voice list type */
- #define V_ST_NORMAL 0
- #define V_ST_MAPPED 1
- /* sample list */
- struct _awe_sample_list {
- awe_sample_info v; /* sample information */
- sf_list *holder; /* parent sf_list of this record */
- awe_sample_list *next; /* linked list with same sf_id */
- };
- /* sample and information table */
- static int current_sf_id = 0; /* current number of fonts */
- static int locked_sf_id = 0; /* locked position */
- static sf_list *sfhead = NULL, *sftail = NULL; /* linked-lists */
- #define awe_free_mem_ptr() (sftail ? sftail->mem_ptr : 0)
- #define awe_free_info() (sftail ? sftail->num_info : 0)
- #define awe_free_sample() (sftail ? sftail->num_sample : 0)
- #define AWE_MAX_PRESETS 256
- #define AWE_DEFAULT_PRESET 0
- #define AWE_DEFAULT_BANK 0
- #define AWE_DEFAULT_DRUM 0
- #define AWE_DRUM_BANK 128
- #define MAX_LAYERS AWE_MAX_VOICES
- /* preset table index */
- static awe_voice_list *preset_table[AWE_MAX_PRESETS];
- /*
- * voice table
- */
- /* effects table */
- typedef struct FX_Rec { /* channel effects */
- unsigned char flags[AWE_FX_END];
- short val[AWE_FX_END];
- } FX_Rec;
- /* channel parameters */
- typedef struct _awe_chan_info {
- int channel; /* channel number */
- int bank; /* current tone bank */
- int instr; /* current program */
- int bender; /* midi pitchbend (-8192 - 8192) */
- int bender_range; /* midi bender range (x100) */
- int panning; /* panning (0-127) */
- int main_vol; /* channel volume (0-127) */
- int expression_vol; /* midi expression (0-127) */
- int chan_press; /* channel pressure */
- int sustained; /* sustain status in MIDI */
- FX_Rec fx; /* effects */
- FX_Rec fx_layer[MAX_LAYERS]; /* layer effects */
- } awe_chan_info;
- /* voice parameters */
- typedef struct _voice_info {
- int state;
- #define AWE_ST_OFF (1<<0) /* no sound */
- #define AWE_ST_ON (1<<1) /* playing */
- #define AWE_ST_STANDBY (1<<2) /* stand by for playing */
- #define AWE_ST_SUSTAINED (1<<3) /* sustained */
- #define AWE_ST_MARK (1<<4) /* marked for allocation */
- #define AWE_ST_DRAM (1<<5) /* DRAM read/write */
- #define AWE_ST_FM (1<<6) /* reserved for FM */
- #define AWE_ST_RELEASED (1<<7) /* released */
- int ch; /* midi channel */
- int key; /* internal key for search */
- int layer; /* layer number (for channel mode only) */
- int time; /* allocated time */
- awe_chan_info *cinfo; /* channel info */
- int note; /* midi key (0-127) */
- int velocity; /* midi velocity (0-127) */
- int sostenuto; /* sostenuto on/off */
- awe_voice_info *sample; /* assigned voice */
- /* EMU8000 parameters */
- int apitch; /* pitch parameter */
- int avol; /* volume parameter */
- int apan; /* panning parameter */
- int acutoff; /* cutoff parameter */
- short aaux; /* aux word */
- } voice_info;
- /* voice information */
- static voice_info voices[AWE_MAX_VOICES];
- #define IS_NO_SOUND(v) (voices[v].state & (AWE_ST_OFF|AWE_ST_RELEASED|AWE_ST_STANDBY|AWE_ST_SUSTAINED))
- #define IS_NO_EFFECT(v) (voices[v].state != AWE_ST_ON)
- #define IS_PLAYING(v) (voices[v].state & (AWE_ST_ON|AWE_ST_SUSTAINED|AWE_ST_RELEASED))
- #define IS_EMPTY(v) (voices[v].state & (AWE_ST_OFF|AWE_ST_MARK|AWE_ST_DRAM|AWE_ST_FM))
- /* MIDI channel effects information (for hw control) */
- static awe_chan_info channels[AWE_MAX_CHANNELS];
- /*
- * global variables
- */
- #ifndef AWE_DEFAULT_BASE_ADDR
- #define AWE_DEFAULT_BASE_ADDR 0 /* autodetect */
- #endif
- #ifndef AWE_DEFAULT_MEM_SIZE
- #define AWE_DEFAULT_MEM_SIZE -1 /* autodetect */
- #endif
- int io = AWE_DEFAULT_BASE_ADDR; /* Emu8000 base address */
- int memsize = AWE_DEFAULT_MEM_SIZE; /* memory size in Kbytes */
- #if defined CONFIG_ISAPNP || defined CONFIG_ISAPNP_MODULE
- static int isapnp = -1;
- #else
- static int isapnp = 0;
- #endif
- MODULE_AUTHOR("Takashi Iwai <iwai@ww.uni-erlangen.de>");
- MODULE_DESCRIPTION("SB AWE32/64 WaveTable driver");
- MODULE_LICENSE("GPL");
- MODULE_PARM(io, "i");
- MODULE_PARM_DESC(io, "base i/o port of Emu8000");
- MODULE_PARM(memsize, "i");
- MODULE_PARM_DESC(memsize, "onboard DRAM size in Kbytes");
- MODULE_PARM(isapnp, "i");
- MODULE_PARM_DESC(isapnp, "use ISAPnP detection");
- EXPORT_NO_SYMBOLS;
- /* DRAM start offset */
- static int awe_mem_start = AWE_DRAM_OFFSET;
- /* maximum channels for playing */
- static int awe_max_voices = AWE_MAX_VOICES;
- static int patch_opened = 0; /* sample already loaded? */
- static char atten_relative = FALSE;
- static short atten_offset = 0;
- static int awe_present = FALSE; /* awe device present? */
- static int awe_busy = FALSE; /* awe device opened? */
- static int my_dev = -1;
- #define DEFAULT_DRUM_FLAGS ((1 << 9) | (1 << 25))
- #define IS_DRUM_CHANNEL(c) (drum_flags & (1 << (c)))
- #define DRUM_CHANNEL_ON(c) (drum_flags |= (1 << (c)))
- #define DRUM_CHANNEL_OFF(c) (drum_flags &= ~(1 << (c)))
- static unsigned int drum_flags = DEFAULT_DRUM_FLAGS; /* channel flags */
- static int playing_mode = AWE_PLAY_INDIRECT;
- #define SINGLE_LAYER_MODE() (playing_mode == AWE_PLAY_INDIRECT || playing_mode == AWE_PLAY_DIRECT)
- #define MULTI_LAYER_MODE() (playing_mode == AWE_PLAY_MULTI || playing_mode == AWE_PLAY_MULTI2)
- static int current_alloc_time = 0; /* voice allocation index for channel mode */
- static struct synth_info awe_info = {
- "AWE32 Synth", /* name */
- 0, /* device */
- SYNTH_TYPE_SAMPLE, /* synth_type */
- SAMPLE_TYPE_AWE32, /* synth_subtype */
- 0, /* perc_mode (obsolete) */
- AWE_MAX_VOICES, /* nr_voices */
- 0, /* nr_drums (obsolete) */
- 400 /* instr_bank_size */
- };
- static struct voice_alloc_info *voice_alloc; /* set at initialization */
- /*
- * function prototypes
- */
- static int awe_check_port(void);
- static void awe_request_region(void);
- static void awe_release_region(void);
- static void awe_reset_samples(void);
- /* emu8000 chip i/o access */
- static void setup_ports(int p1, int p2, int p3);
- static void awe_poke(unsigned short cmd, unsigned short port, unsigned short data);
- static void awe_poke_dw(unsigned short cmd, unsigned short port, unsigned int data);
- static unsigned short awe_peek(unsigned short cmd, unsigned short port);
- static unsigned int awe_peek_dw(unsigned short cmd, unsigned short port);
- static void awe_wait(unsigned short delay);
- /* initialize emu8000 chip */
- static int _attach_awe(void);
- static void _unload_awe(void);
- static void awe_initialize(void);
- /* set voice parameters */
- static void awe_init_ctrl_parms(int init_all);
- static void awe_init_voice_info(awe_voice_info *vp);
- static void awe_init_voice_parm(awe_voice_parm *pp);
- #ifdef AWE_HAS_GUS_COMPATIBILITY
- static int freq_to_note(int freq);
- static int calc_rate_offset(int Hz);
- /*static int calc_parm_delay(int msec);*/
- static int calc_parm_hold(int msec);
- static int calc_parm_attack(int msec);
- static int calc_parm_decay(int msec);
- static int calc_parm_search(int msec, short *table);
- #endif /* gus compat */
- /* turn on/off note */
- static void awe_note_on(int voice);
- static void awe_note_off(int voice);
- static void awe_terminate(int voice);
- static void awe_exclusive_off(int voice);
- static void awe_note_off_all(int do_sustain);
- /* calculate voice parameters */
- typedef void (*fx_affect_func)(int voice, int forced);
- static void awe_set_pitch(int voice, int forced);
- static void awe_set_voice_pitch(int voice, int forced);
- static void awe_set_volume(int voice, int forced);
- static void awe_set_voice_vol(int voice, int forced);
- static void awe_set_pan(int voice, int forced);
- static void awe_fx_fmmod(int voice, int forced);
- static void awe_fx_tremfrq(int voice, int forced);
- static void awe_fx_fm2frq2(int voice, int forced);
- static void awe_fx_filterQ(int voice, int forced);
- static void awe_calc_pitch(int voice);
- #ifdef AWE_HAS_GUS_COMPATIBILITY
- static void awe_calc_pitch_from_freq(int voice, int freq);
- #endif
- static void awe_calc_volume(int voice);
- static void awe_update_volume(void);
- static void awe_change_master_volume(short val);
- static void awe_voice_init(int voice, int init_all);
- static void awe_channel_init(int ch, int init_all);
- static void awe_fx_init(int ch);
- static void awe_send_effect(int voice, int layer, int type, int val);
- static void awe_modwheel_change(int voice, int value);
- /* sequencer interface */
- static int awe_open(int dev, int mode);
- static void awe_close(int dev);
- static int awe_ioctl(int dev, unsigned int cmd, caddr_t arg);
- static int awe_kill_note(int dev, int voice, int note, int velocity);
- static int awe_start_note(int dev, int v, int note_num, int volume);
- static int awe_set_instr(int dev, int voice, int instr_no);
- static int awe_set_instr_2(int dev, int voice, int instr_no);
- static void awe_reset(int dev);
- static void awe_hw_control(int dev, unsigned char *event);
- static int awe_load_patch(int dev, int format, const char *addr,
- int offs, int count, int pmgr_flag);
- static void awe_aftertouch(int dev, int voice, int pressure);
- static void awe_controller(int dev, int voice, int ctrl_num, int value);
- static void awe_panning(int dev, int voice, int value);
- static void awe_volume_method(int dev, int mode);
- static void awe_bender(int dev, int voice, int value);
- static int awe_alloc(int dev, int chn, int note, struct voice_alloc_info *alloc);
- static void awe_setup_voice(int dev, int voice, int chn);
- #define awe_key_pressure(dev,voice,key,press) awe_start_note(dev,voice,(key)+128,press)
- /* hardware controls */
- #ifdef AWE_HAS_GUS_COMPATIBILITY
- static void awe_hw_gus_control(int dev, int cmd, unsigned char *event);
- #endif
- static void awe_hw_awe_control(int dev, int cmd, unsigned char *event);
- static void awe_voice_change(int voice, fx_affect_func func);
- static void awe_sostenuto_on(int voice, int forced);
- static void awe_sustain_off(int voice, int forced);
- static void awe_terminate_and_init(int voice, int forced);
- /* voice search */
- static int awe_search_key(int bank, int preset, int note);
- static awe_voice_list *awe_search_instr(int bank, int preset, int note);
- static int awe_search_multi_voices(awe_voice_list *rec, int note, int velocity, awe_voice_info **vlist);
- static void awe_alloc_multi_voices(int ch, int note, int velocity, int key);
- static void awe_alloc_one_voice(int voice, int note, int velocity);
- static int awe_clear_voice(void);
- /* load / remove patches */
- static int awe_open_patch(awe_patch_info *patch, const char *addr, int count);
- static int awe_close_patch(awe_patch_info *patch, const char *addr, int count);
- static int awe_unload_patch(awe_patch_info *patch, const char *addr, int count);
- static int awe_load_info(awe_patch_info *patch, const char *addr, int count);
- static int awe_remove_info(awe_patch_info *patch, const char *addr, int count);
- static int awe_load_data(awe_patch_info *patch, const char *addr, int count);
- static int awe_replace_data(awe_patch_info *patch, const char *addr, int count);
- static int awe_load_map(awe_patch_info *patch, const char *addr, int count);
- #ifdef AWE_HAS_GUS_COMPATIBILITY
- static int awe_load_guspatch(const char *addr, int offs, int size, int pmgr_flag);
- #endif
- /*static int awe_probe_info(awe_patch_info *patch, const char *addr, int count);*/
- static int awe_probe_data(awe_patch_info *patch, const char *addr, int count);
- static sf_list *check_patch_opened(int type, char *name);
- static int awe_write_wave_data(const char *addr, int offset, awe_sample_list *sp, int channels);
- static int awe_create_sf(int type, char *name);
- static void awe_free_sf(sf_list *sf);
- static void add_sf_info(sf_list *sf, awe_voice_list *rec);
- static void add_sf_sample(sf_list *sf, awe_sample_list *smp);
- static void purge_old_list(awe_voice_list *rec, awe_voice_list *next);
- static void add_info_list(awe_voice_list *rec);
- static void awe_remove_samples(int sf_id);
- static void rebuild_preset_list(void);
- static short awe_set_sample(awe_voice_list *rec);
- static awe_sample_list *search_sample_index(sf_list *sf, int sample);
- static int is_identical_holder(sf_list *sf1, sf_list *sf2);
- #ifdef AWE_ALLOW_SAMPLE_SHARING
- static int is_identical_name(unsigned char *name, sf_list *p);
- static int is_shared_sf(unsigned char *name);
- static int info_duplicated(sf_list *sf, awe_voice_list *rec);
- #endif /* allow sharing */
- /* lowlevel functions */
- static void awe_init_audio(void);
- static void awe_init_dma(void);
- static void awe_init_array(void);
- static void awe_send_array(unsigned short *data);
- static void awe_tweak_voice(int voice);
- static void awe_tweak(void);
- static void awe_init_fm(void);
- static int awe_open_dram_for_write(int offset, int channels);
- static void awe_open_dram_for_check(void);
- static void awe_close_dram(void);
- /*static void awe_write_dram(unsigned short c);*/
- static int awe_detect_base(int addr);
- static int awe_detect(void);
- static void awe_check_dram(void);
- static int awe_load_chorus_fx(awe_patch_info *patch, const char *addr, int count);
- static void awe_set_chorus_mode(int mode);
- static void awe_update_chorus_mode(void);
- static int awe_load_reverb_fx(awe_patch_info *patch, const char *addr, int count);
- static void awe_set_reverb_mode(int mode);
- static void awe_update_reverb_mode(void);
- static void awe_equalizer(int bass, int treble);
- static void awe_update_equalizer(void);
- #ifdef CONFIG_AWE32_MIXER
- static void attach_mixer(void);
- static void unload_mixer(void);
- #endif
- #ifdef CONFIG_AWE32_MIDIEMU
- static void attach_midiemu(void);
- static void unload_midiemu(void);
- #endif
- #define limitvalue(x, a, b) if ((x) < (a)) (x) = (a); else if ((x) > (b)) (x) = (b)
- /*
- * control parameters
- */
- #ifdef AWE_USE_NEW_VOLUME_CALC
- #define DEF_VOLUME_CALC TRUE
- #else
- #define DEF_VOLUME_CALC FALSE
- #endif /* new volume */
- #define DEF_ZERO_ATTEN 32 /* 12dB below */
- #define DEF_MOD_SENSE 18
- #define DEF_CHORUS_MODE 2
- #define DEF_REVERB_MODE 4
- #define DEF_BASS_LEVEL 5
- #define DEF_TREBLE_LEVEL 9
- static struct CtrlParmsDef {
- int value;
- int init_each_time;
- void (*update)(void);
- } ctrl_parms[AWE_MD_END] = {
- {0,0, NULL}, {0,0, NULL}, /* <-- not used */
- {AWE_VERSION_NUMBER, FALSE, NULL},
- {TRUE, FALSE, NULL}, /* exclusive */
- {TRUE, FALSE, NULL}, /* realpan */
- {AWE_DEFAULT_BANK, FALSE, NULL}, /* gusbank */
- {FALSE, TRUE, NULL}, /* keep effect */
- {DEF_ZERO_ATTEN, FALSE, awe_update_volume}, /* zero_atten */
- {FALSE, FALSE, NULL}, /* chn_prior */
- {DEF_MOD_SENSE, FALSE, NULL}, /* modwheel sense */
- {AWE_DEFAULT_PRESET, FALSE, NULL}, /* def_preset */
- {AWE_DEFAULT_BANK, FALSE, NULL}, /* def_bank */
- {AWE_DEFAULT_DRUM, FALSE, NULL}, /* def_drum */
- {FALSE, FALSE, NULL}, /* toggle_drum_bank */
- {DEF_VOLUME_CALC, FALSE, awe_update_volume}, /* new_volume_calc */
- {DEF_CHORUS_MODE, FALSE, awe_update_chorus_mode}, /* chorus mode */
- {DEF_REVERB_MODE, FALSE, awe_update_reverb_mode}, /* reverb mode */
- {DEF_BASS_LEVEL, FALSE, awe_update_equalizer}, /* bass level */
- {DEF_TREBLE_LEVEL, FALSE, awe_update_equalizer}, /* treble level */
- {0, FALSE, NULL}, /* debug mode */
- {FALSE, FALSE, NULL}, /* pan exchange */
- };
- static int ctrls[AWE_MD_END];
- /*
- * synth operation table
- */
- static struct synth_operations awe_operations =
- {
- owner: THIS_MODULE,
- id: "EMU8K",
- info: &awe_info,
- midi_dev: 0,
- synth_type: SYNTH_TYPE_SAMPLE,
- synth_subtype: SAMPLE_TYPE_AWE32,
- open: awe_open,
- close: awe_close,
- ioctl: awe_ioctl,
- kill_note: awe_kill_note,
- start_note: awe_start_note,
- set_instr: awe_set_instr_2,
- reset: awe_reset,
- hw_control: awe_hw_control,
- load_patch: awe_load_patch,
- aftertouch: awe_aftertouch,
- controller: awe_controller,
- panning: awe_panning,
- volume_method: awe_volume_method,
- bender: awe_bender,
- alloc_voice: awe_alloc,
- setup_voice: awe_setup_voice
- };
- /*
- * General attach / unload interface
- */
- static int __init _attach_awe(void)
- {
- if (awe_present) return 0; /* for OSS38.. called twice? */
- /* check presence of AWE32 card */
- if (! awe_detect()) {
- printk(KERN_ERR "AWE32: not detectedn");
- return 0;
- }
- /* check AWE32 ports are available */
- if (awe_check_port()) {
- printk(KERN_ERR "AWE32: I/O area already used.n");
- return 0;
- }
- /* set buffers to NULL */
- sfhead = sftail = NULL;
- my_dev = sound_alloc_synthdev();
- if (my_dev == -1) {
- printk(KERN_ERR "AWE32 Error: too many synthesizersn");
- return 0;
- }
- voice_alloc = &awe_operations.alloc;
- voice_alloc->max_voice = awe_max_voices;
- synth_devs[my_dev] = &awe_operations;
- #ifdef CONFIG_AWE32_MIXER
- attach_mixer();
- #endif
- #ifdef CONFIG_AWE32_MIDIEMU
- attach_midiemu();
- #endif
- /* reserve I/O ports for awedrv */
- awe_request_region();
- /* clear all samples */
- awe_reset_samples();
- /* intialize AWE32 hardware */
- awe_initialize();
- sprintf(awe_info.name, "AWE32-%s (RAM%dk)",
- AWEDRV_VERSION, memsize/1024);
- printk(KERN_INFO "<SoundBlaster EMU8000 (RAM%dk)>n", memsize/1024);
- awe_present = TRUE;
- return 1;
- }
- static void free_tables(void)
- {
- if (sftail) {
- sf_list *p, *prev;
- for (p = sftail; p; p = prev) {
- prev = p->prev;
- awe_free_sf(p);
- }
- }
- sfhead = sftail = NULL;
- }
- static void __exit _unload_awe(void)
- {
- if (awe_present) {
- awe_reset_samples();
- awe_release_region();
- free_tables();
- #ifdef CONFIG_AWE32_MIXER
- unload_mixer();
- #endif
- #ifdef CONFIG_AWE32_MIDIEMU
- unload_midiemu();
- #endif
- sound_unload_synthdev(my_dev);
- awe_present = FALSE;
- }
- }
- /*
- * clear sample tables
- */
- static void
- awe_reset_samples(void)
- {
- /* free all bank tables */
- memset(preset_table, 0, sizeof(preset_table));
- free_tables();
- current_sf_id = 0;
- locked_sf_id = 0;
- patch_opened = 0;
- }
- /*
- * EMU register access
- */
- /* select a given AWE32 pointer */
- static int awe_ports[5];
- static int port_setuped = FALSE;
- static int awe_cur_cmd = -1;
- #define awe_set_cmd(cmd)
- if (awe_cur_cmd != cmd) { outw(cmd, awe_ports[Pointer]); awe_cur_cmd = cmd; }
- /* store values to i/o port array */
- static void setup_ports(int port1, int port2, int port3)
- {
- awe_ports[0] = port1;
- if (port2 == 0)
- port2 = port1 + 0x400;
- awe_ports[1] = port2;
- awe_ports[2] = port2 + 2;
- if (port3 == 0)
- port3 = port1 + 0x800;
- awe_ports[3] = port3;
- awe_ports[4] = port3 + 2;
- port_setuped = TRUE;
- }
- /* write 16bit data */
- static void
- awe_poke(unsigned short cmd, unsigned short port, unsigned short data)
- {
- awe_set_cmd(cmd);
- outw(data, awe_ports[port]);
- }
- /* write 32bit data */
- static void
- awe_poke_dw(unsigned short cmd, unsigned short port, unsigned int data)
- {
- unsigned short addr = awe_ports[port];
- awe_set_cmd(cmd);
- outw(data, addr); /* write lower 16 bits */
- outw(data >> 16, addr + 2); /* write higher 16 bits */
- }
- /* read 16bit data */
- static unsigned short
- awe_peek(unsigned short cmd, unsigned short port)
- {
- unsigned short k;
- awe_set_cmd(cmd);
- k = inw(awe_ports[port]);
- return k;
- }
- /* read 32bit data */
- static unsigned int
- awe_peek_dw(unsigned short cmd, unsigned short port)
- {
- unsigned int k1, k2;
- unsigned short addr = awe_ports[port];
- awe_set_cmd(cmd);
- k1 = inw(addr);
- k2 = inw(addr + 2);
- k1 |= k2 << 16;
- return k1;
- }
- /* wait delay number of AWE32 44100Hz clocks */
- #ifdef WAIT_BY_LOOP /* wait by loop -- that's not good.. */
- static void
- awe_wait(unsigned short delay)
- {
- unsigned short clock, target;
- unsigned short port = awe_ports[AWE_WC_Port];
- int counter;
-
- /* sample counter */
- awe_set_cmd(AWE_WC_Cmd);
- clock = (unsigned short)inw(port);
- target = clock + delay;
- counter = 0;
- if (target < clock) {
- for (; (unsigned short)inw(port) > target; counter++)
- if (counter > 65536)
- break;
- }
- for (; (unsigned short)inw(port) < target; counter++)
- if (counter > 65536)
- break;
- }
- #else
- static void awe_wait(unsigned short delay)
- {
- current->state = TASK_INTERRUPTIBLE;
- schedule_timeout((HZ*(unsigned long)delay + 44099)/44100);
- }
- /*
- static void awe_wait(unsigned short delay)
- {
- udelay(((unsigned long)delay * 1000000L + 44099) / 44100);
- }
- */
- #endif /* wait by loop */
- /* write a word data */
- #define awe_write_dram(c) awe_poke(AWE_SMLD, c)
- /*
- * port check / request
- * 0x620-623, 0xA20-A23, 0xE20-E23
- */
- static int __init
- awe_check_port(void)
- {
- if (! port_setuped) return 0;
- return (check_region(awe_ports[0], 4) ||
- check_region(awe_ports[1], 4) ||
- check_region(awe_ports[3], 4));
- }
- static void __init
- awe_request_region(void)
- {
- if (! port_setuped) return;
- request_region(awe_ports[0], 4, "sound driver (AWE32)");
- request_region(awe_ports[1], 4, "sound driver (AWE32)");
- request_region(awe_ports[3], 4, "sound driver (AWE32)");
- }
- static void __exit
- awe_release_region(void)
- {
- if (! port_setuped) return;
- release_region(awe_ports[0], 4);
- release_region(awe_ports[1], 4);
- release_region(awe_ports[3], 4);
- }
- /*
- * initialization of AWE driver
- */
- static void
- awe_initialize(void)
- {
- DEBUG(0,printk("AWE32: initializing..n"));
- /* initialize hardware configuration */
- awe_poke(AWE_HWCF1, 0x0059);
- awe_poke(AWE_HWCF2, 0x0020);
- /* disable audio; this seems to reduce a clicking noise a bit.. */
- awe_poke(AWE_HWCF3, 0);
- /* initialize audio channels */
- awe_init_audio();
- /* initialize DMA */
- awe_init_dma();
- /* initialize init array */
- awe_init_array();
- /* check DRAM memory size */
- awe_check_dram();
- /* initialize the FM section of the AWE32 */
- awe_init_fm();
- /* set up voice envelopes */
- awe_tweak();
- /* enable audio */
- awe_poke(AWE_HWCF3, 0x0004);
- /* set default values */
- awe_init_ctrl_parms(TRUE);
- /* set equalizer */
- awe_update_equalizer();
- /* set reverb & chorus modes */
- awe_update_reverb_mode();
- awe_update_chorus_mode();
- }
- /*
- * AWE32 voice parameters
- */
- /* initialize voice_info record */
- static void
- awe_init_voice_info(awe_voice_info *vp)
- {
- vp->sample = 0;
- vp->rate_offset = 0;
- vp->start = 0;
- vp->end = 0;
- vp->loopstart = 0;
- vp->loopend = 0;
- vp->mode = 0;
- vp->root = 60;
- vp->tune = 0;
- vp->low = 0;
- vp->high = 127;
- vp->vellow = 0;
- vp->velhigh = 127;
- vp->fixkey = -1;
- vp->fixvel = -1;
- vp->fixpan = -1;
- vp->pan = -1;
- vp->exclusiveClass = 0;
- vp->amplitude = 127;
- vp->attenuation = 0;
- vp->scaleTuning = 100;
- awe_init_voice_parm(&vp->parm);
- }
- /* initialize voice_parm record:
- * Env1/2: delay=0, attack=0, hold=0, sustain=0, decay=0, release=0.
- * Vibrato and Tremolo effects are zero.
- * Cutoff is maximum.
- * Chorus and Reverb effects are zero.
- */
- static void
- awe_init_voice_parm(awe_voice_parm *pp)
- {
- pp->moddelay = 0x8000;
- pp->modatkhld = 0x7f7f;
- pp->moddcysus = 0x7f7f;
- pp->modrelease = 0x807f;
- pp->modkeyhold = 0;
- pp->modkeydecay = 0;
- pp->voldelay = 0x8000;
- pp->volatkhld = 0x7f7f;
- pp->voldcysus = 0x7f7f;
- pp->volrelease = 0x807f;
- pp->volkeyhold = 0;
- pp->volkeydecay = 0;
- pp->lfo1delay = 0x8000;
- pp->lfo2delay = 0x8000;
- pp->pefe = 0;
- pp->fmmod = 0;
- pp->tremfrq = 0;
- pp->fm2frq2 = 0;
- pp->cutoff = 0xff;
- pp->filterQ = 0;
- pp->chorus = 0;
- pp->reverb = 0;
- }
- #ifdef AWE_HAS_GUS_COMPATIBILITY
- /* convert frequency mHz to abstract cents (= midi key * 100) */
- static int
- freq_to_note(int mHz)
- {
- /* abscents = log(mHz/8176) / log(2) * 1200 */
- unsigned int max_val = (unsigned int)0xffffffff / 10000;
- int i, times;
- unsigned int base;
- unsigned int freq;
- int note, tune;
- if (mHz == 0)
- return 0;
- if (mHz < 0)
- return 12799; /* maximum */
- freq = mHz;
- note = 0;
- for (base = 8176 * 2; freq >= base; base *= 2) {
- note += 12;
- if (note >= 128) /* over maximum */
- return 12799;
- }
- base /= 2;
- /* to avoid overflow... */
- times = 10000;
- while (freq > max_val) {
- max_val *= 10;
- times /= 10;
- base /= 10;
- }
- freq = freq * times / base;
- for (i = 0; i < 12; i++) {
- if (freq < semitone_tuning[i+1])
- break;
- note++;
- }
- tune = 0;
- freq = freq * 10000 / semitone_tuning[i];
- for (i = 0; i < 100; i++) {
- if (freq < cent_tuning[i+1])
- break;
- tune++;
- }
- return note * 100 + tune;
- }
- /* convert Hz to AWE32 rate offset:
- * sample pitch offset for the specified sample rate
- * rate=44100 is no offset, each 4096 is 1 octave (twice).
- * eg, when rate is 22050, this offset becomes -4096.
- */
- static int
- calc_rate_offset(int Hz)
- {
- /* offset = log(Hz / 44100) / log(2) * 4096 */
- int freq, base, i;
- /* maybe smaller than max (44100Hz) */
- if (Hz <= 0 || Hz >= 44100) return 0;
- base = 0;
- for (freq = Hz * 2; freq < 44100; freq *= 2)
- base++;
- base *= 1200;
- freq = 44100 * 10000 / (freq/2);
- for (i = 0; i < 12; i++) {
- if (freq < semitone_tuning[i+1])
- break;
- base += 100;
- }
- freq = freq * 10000 / semitone_tuning[i];
- for (i = 0; i < 100; i++) {
- if (freq < cent_tuning[i+1])
- break;
- base++;
- }
- return -base * 4096 / 1200;
- }
- /*
- * convert envelope time parameter to AWE32 raw parameter
- */
- /* attack & decay/release time table (msec) */
- static short attack_time_tbl[128] = {
- 32767, 32767, 5989, 4235, 2994, 2518, 2117, 1780, 1497, 1373, 1259, 1154, 1058, 970, 890, 816,
- 707, 691, 662, 634, 607, 581, 557, 533, 510, 489, 468, 448, 429, 411, 393, 377,
- 361, 345, 331, 317, 303, 290, 278, 266, 255, 244, 234, 224, 214, 205, 196, 188,
- 180, 172, 165, 158, 151, 145, 139, 133, 127, 122, 117, 112, 107, 102, 98, 94,
- 90, 86, 82, 79, 75, 72, 69, 66, 63, 61, 58, 56, 53, 51, 49, 47,
- 45, 43, 41, 39, 37, 36, 34, 33, 31, 30, 29, 28, 26, 25, 24, 23,
- 22, 21, 20, 19, 19, 18, 17, 16, 16, 15, 15, 14, 13, 13, 12, 12,
- 11, 11, 10, 10, 10, 9, 9, 8, 8, 8, 8, 7, 7, 7, 6, 0,
- };
- static short decay_time_tbl[128] = {
- 32767, 32767, 22614, 15990, 11307, 9508, 7995, 6723, 5653, 5184, 4754, 4359, 3997, 3665, 3361, 3082,
- 2828, 2765, 2648, 2535, 2428, 2325, 2226, 2132, 2042, 1955, 1872, 1793, 1717, 1644, 1574, 1507,
- 1443, 1382, 1324, 1267, 1214, 1162, 1113, 1066, 978, 936, 897, 859, 822, 787, 754, 722,
- 691, 662, 634, 607, 581, 557, 533, 510, 489, 468, 448, 429, 411, 393, 377, 361,
- 345, 331, 317, 303, 290, 278, 266, 255, 244, 234, 224, 214, 205, 196, 188, 180,
- 172, 165, 158, 151, 145, 139, 133, 127, 122, 117, 112, 107, 102, 98, 94, 90,
- 86, 82, 79, 75, 72, 69, 66, 63, 61, 58, 56, 53, 51, 49, 47, 45,
- 43, 41, 39, 37, 36, 34, 33, 31, 30, 29, 28, 26, 25, 24, 23, 22,
- };
- #define calc_parm_delay(msec) (0x8000 - (msec) * 1000 / 725);
- /* delay time = 0x8000 - msec/92 */
- static int
- calc_parm_hold(int msec)
- {
- int val = (0x7f * 92 - msec) / 92;
- if (val < 1) val = 1;
- if (val > 127) val = 127;
- return val;
- }
- /* attack time: search from time table */
- static int
- calc_parm_attack(int msec)
- {
- return calc_parm_search(msec, attack_time_tbl);
- }
- /* decay/release time: search from time table */
- static int
- calc_parm_decay(int msec)
- {
- return calc_parm_search(msec, decay_time_tbl);
- }
- /* search an index for specified time from given time table */
- static int
- calc_parm_search(int msec, short *table)
- {
- int left = 1, right = 127, mid;
- while (left < right) {
- mid = (left + right) / 2;
- if (msec < (int)table[mid])
- left = mid + 1;
- else
- right = mid;
- }
- return left;
- }
- #endif /* AWE_HAS_GUS_COMPATIBILITY */
- /*
- * effects table
- */
- /* set an effect value */
- #define FX_FLAG_OFF 0
- #define FX_FLAG_SET 1
- #define FX_FLAG_ADD 2
- #define FX_SET(rec,type,value)
- ((rec)->flags[type] = FX_FLAG_SET, (rec)->val[type] = (value))
- #define FX_ADD(rec,type,value)
- ((rec)->flags[type] = FX_FLAG_ADD, (rec)->val[type] = (value))
- #define FX_UNSET(rec,type)
- ((rec)->flags[type] = FX_FLAG_OFF, (rec)->val[type] = 0)
- /* check the effect value is set */
- #define FX_ON(rec,type) ((rec)->flags[type])
- #define PARM_BYTE 0
- #define PARM_WORD 1
- #define PARM_SIGN 2
- static struct PARM_DEFS {
- int type; /* byte or word */
- int low, high; /* value range */
- fx_affect_func realtime; /* realtime paramater change */
- } parm_defs[] = {
- {PARM_WORD, 0, 0x8000, NULL}, /* env1 delay */
- {PARM_BYTE, 1, 0x7f, NULL}, /* env1 attack */
- {PARM_BYTE, 0, 0x7e, NULL}, /* env1 hold */
- {PARM_BYTE, 1, 0x7f, NULL}, /* env1 decay */
- {PARM_BYTE, 1, 0x7f, NULL}, /* env1 release */
- {PARM_BYTE, 0, 0x7f, NULL}, /* env1 sustain */
- {PARM_BYTE, 0, 0xff, NULL}, /* env1 pitch */
- {PARM_BYTE, 0, 0xff, NULL}, /* env1 cutoff */
- {PARM_WORD, 0, 0x8000, NULL}, /* env2 delay */
- {PARM_BYTE, 1, 0x7f, NULL}, /* env2 attack */
- {PARM_BYTE, 0, 0x7e, NULL}, /* env2 hold */
- {PARM_BYTE, 1, 0x7f, NULL}, /* env2 decay */
- {PARM_BYTE, 1, 0x7f, NULL}, /* env2 release */
- {PARM_BYTE, 0, 0x7f, NULL}, /* env2 sustain */
- {PARM_WORD, 0, 0x8000, NULL}, /* lfo1 delay */
- {PARM_BYTE, 0, 0xff, awe_fx_tremfrq}, /* lfo1 freq */
- {PARM_SIGN, -128, 127, awe_fx_tremfrq}, /* lfo1 volume */
- {PARM_SIGN, -128, 127, awe_fx_fmmod}, /* lfo1 pitch */
- {PARM_BYTE, 0, 0xff, awe_fx_fmmod}, /* lfo1 cutoff */
- {PARM_WORD, 0, 0x8000, NULL}, /* lfo2 delay */
- {PARM_BYTE, 0, 0xff, awe_fx_fm2frq2}, /* lfo2 freq */
- {PARM_SIGN, -128, 127, awe_fx_fm2frq2}, /* lfo2 pitch */
- {PARM_WORD, 0, 0xffff, awe_set_voice_pitch}, /* initial pitch */
- {PARM_BYTE, 0, 0xff, NULL}, /* chorus */
- {PARM_BYTE, 0, 0xff, NULL}, /* reverb */
- {PARM_BYTE, 0, 0xff, awe_set_volume}, /* initial cutoff */
- {PARM_BYTE, 0, 15, awe_fx_filterQ}, /* initial resonance */
- {PARM_WORD, 0, 0xffff, NULL}, /* sample start */
- {PARM_WORD, 0, 0xffff, NULL}, /* loop start */
- {PARM_WORD, 0, 0xffff, NULL}, /* loop end */
- {PARM_WORD, 0, 0xffff, NULL}, /* coarse sample start */
- {PARM_WORD, 0, 0xffff, NULL}, /* coarse loop start */
- {PARM_WORD, 0, 0xffff, NULL}, /* coarse loop end */
- {PARM_BYTE, 0, 0xff, awe_set_volume}, /* initial attenuation */
- };
- static unsigned char
- FX_BYTE(FX_Rec *rec, FX_Rec *lay, int type, unsigned char value)
- {
- int effect = 0;
- int on = 0;
- if (lay && (on = FX_ON(lay, type)) != 0)
- effect = lay->val[type];
- if (!on && (on = FX_ON(rec, type)) != 0)
- effect = rec->val[type];
- if (on == FX_FLAG_ADD) {
- if (parm_defs[type].type == PARM_SIGN) {
- if (value > 0x7f)
- effect += (int)value - 0x100;
- else
- effect += (int)value;
- } else {
- effect += (int)value;
- }
- }
- if (on) {
- if (effect < parm_defs[type].low)
- effect = parm_defs[type].low;
- else if (effect > parm_defs[type].high)
- effect = parm_defs[type].high;
- return (unsigned char)effect;
- }
- return value;
- }
- /* get word effect value */
- static unsigned short
- FX_WORD(FX_Rec *rec, FX_Rec *lay, int type, unsigned short value)
- {
- int effect = 0;
- int on = 0;
- if (lay && (on = FX_ON(lay, type)) != 0)
- effect = lay->val[type];
- if (!on && (on = FX_ON(rec, type)) != 0)
- effect = rec->val[type];
- if (on == FX_FLAG_ADD)
- effect += (int)value;
- if (on) {
- if (effect < parm_defs[type].low)
- effect = parm_defs[type].low;
- else if (effect > parm_defs[type].high)
- effect = parm_defs[type].high;
- return (unsigned short)effect;
- }
- return value;
- }
- /* get word (upper=type1/lower=type2) effect value */
- static unsigned short
- FX_COMB(FX_Rec *rec, FX_Rec *lay, int type1, int type2, unsigned short value)
- {
- unsigned short tmp;
- tmp = FX_BYTE(rec, lay, type1, (unsigned char)(value >> 8));
- tmp <<= 8;
- tmp |= FX_BYTE(rec, lay, type2, (unsigned char)(value & 0xff));
- return tmp;
- }
- /* address offset */
- static int
- FX_OFFSET(FX_Rec *rec, FX_Rec *lay, int lo, int hi, int mode)
- {
- int addr = 0;
- if (lay && FX_ON(lay, hi))
- addr = (short)lay->val[hi];
- else if (FX_ON(rec, hi))
- addr = (short)rec->val[hi];
- addr = addr << 15;
- if (lay && FX_ON(lay, lo))
- addr += (short)lay->val[lo];
- else if (FX_ON(rec, lo))
- addr += (short)rec->val[lo];
- if (!(mode & AWE_SAMPLE_8BITS))
- addr /= 2;
- return addr;
- }
- /*
- * turn on/off sample
- */
- /* table for volume target calculation */
- static unsigned short voltarget[16] = {
- 0xEAC0, 0XE0C8, 0XD740, 0XCE20, 0XC560, 0XBD08, 0XB500, 0XAD58,
- 0XA5F8, 0X9EF0, 0X9830, 0X91C0, 0X8B90, 0X85A8, 0X8000, 0X7A90
- };
- static void
- awe_note_on(int voice)
- {
- unsigned int temp;
- int addr;
- int vtarget, ftarget, ptarget, pitch;
- awe_voice_info *vp;
- awe_voice_parm_block *parm;
- FX_Rec *fx = &voices[voice].cinfo->fx;
- FX_Rec *fx_lay = NULL;
- if (voices[voice].layer < MAX_LAYERS)
- fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
- /* A voice sample must assigned before calling */
- if ((vp = voices[voice].sample) == NULL || vp->index == 0)
- return;
- parm = (awe_voice_parm_block*)&vp->parm;
- /* channel to be silent and idle */
- awe_poke(AWE_DCYSUSV(voice), 0x0080);
- awe_poke(AWE_VTFT(voice), 0x0000FFFF);
- awe_poke(AWE_CVCF(voice), 0x0000FFFF);
- awe_poke(AWE_PTRX(voice), 0);
- awe_poke(AWE_CPF(voice), 0);
- /* set pitch offset */
- awe_set_pitch(voice, TRUE);
- /* modulation & volume envelope */
- if (parm->modatk >= 0x80 && parm->moddelay >= 0x8000) {
- awe_poke(AWE_ENVVAL(voice), 0xBFFF);
- pitch = (parm->env1pit<<4) + voices[voice].apitch;
- if (pitch > 0xffff) pitch = 0xffff;
- /* calculate filter target */
- ftarget = parm->cutoff + parm->env1fc;
- limitvalue(ftarget, 0, 255);
- ftarget <<= 8;
- } else {
- awe_poke(AWE_ENVVAL(voice),
- FX_WORD(fx, fx_lay, AWE_FX_ENV1_DELAY, parm->moddelay));
- ftarget = parm->cutoff;
- ftarget <<= 8;
- pitch = voices[voice].apitch;
- }
- /* calcualte pitch target */
- if (pitch != 0xffff) {
- ptarget = 1 << (pitch >> 12);
- if (pitch & 0x800) ptarget += (ptarget*0x102e)/0x2710;
- if (pitch & 0x400) ptarget += (ptarget*0x764)/0x2710;
- if (pitch & 0x200) ptarget += (ptarget*0x389)/0x2710;
- ptarget += (ptarget>>1);
- if (ptarget > 0xffff) ptarget = 0xffff;
- } else ptarget = 0xffff;
- if (parm->modatk >= 0x80)
- awe_poke(AWE_ATKHLD(voice),
- FX_BYTE(fx, fx_lay, AWE_FX_ENV1_HOLD, parm->modhld) << 8 | 0x7f);
- else
- awe_poke(AWE_ATKHLD(voice),
- FX_COMB(fx, fx_lay, AWE_FX_ENV1_HOLD, AWE_FX_ENV1_ATTACK,
- vp->parm.modatkhld));
- awe_poke(AWE_DCYSUS(voice),
- FX_COMB(fx, fx_lay, AWE_FX_ENV1_SUSTAIN, AWE_FX_ENV1_DECAY,
- vp->parm.moddcysus));
- if (parm->volatk >= 0x80 && parm->voldelay >= 0x8000) {
- awe_poke(AWE_ENVVOL(voice), 0xBFFF);
- vtarget = voltarget[voices[voice].avol%0x10]>>(voices[voice].avol>>4);
- } else {
- awe_poke(AWE_ENVVOL(voice),
- FX_WORD(fx, fx_lay, AWE_FX_ENV2_DELAY, vp->parm.voldelay));
- vtarget = 0;
- }
- if (parm->volatk >= 0x80)
- awe_poke(AWE_ATKHLDV(voice),
- FX_BYTE(fx, fx_lay, AWE_FX_ENV2_HOLD, parm->volhld) << 8 | 0x7f);
- else
- awe_poke(AWE_ATKHLDV(voice),
- FX_COMB(fx, fx_lay, AWE_FX_ENV2_HOLD, AWE_FX_ENV2_ATTACK,
- vp->parm.volatkhld));
- /* decay/sustain parameter for volume envelope must be set at last */
- /* cutoff and volume */
- awe_set_volume(voice, TRUE);
- /* modulation envelope heights */
- awe_poke(AWE_PEFE(voice),
- FX_COMB(fx, fx_lay, AWE_FX_ENV1_PITCH, AWE_FX_ENV1_CUTOFF,
- vp->parm.pefe));
- /* lfo1/2 delay */
- awe_poke(AWE_LFO1VAL(voice),
- FX_WORD(fx, fx_lay, AWE_FX_LFO1_DELAY, vp->parm.lfo1delay));
- awe_poke(AWE_LFO2VAL(voice),
- FX_WORD(fx, fx_lay, AWE_FX_LFO2_DELAY, vp->parm.lfo2delay));
- /* lfo1 pitch & cutoff shift */
- awe_fx_fmmod(voice, TRUE);
- /* lfo1 volume & freq */
- awe_fx_tremfrq(voice, TRUE);
- /* lfo2 pitch & freq */
- awe_fx_fm2frq2(voice, TRUE);
- /* pan & loop start */
- awe_set_pan(voice, TRUE);
- /* chorus & loop end (chorus 8bit, MSB) */
- addr = vp->loopend - 1;
- addr += FX_OFFSET(fx, fx_lay, AWE_FX_LOOP_END,
- AWE_FX_COARSE_LOOP_END, vp->mode);
- temp = FX_BYTE(fx, fx_lay, AWE_FX_CHORUS, vp->parm.chorus);
- temp = (temp <<24) | (unsigned int)addr;
- awe_poke_dw(AWE_CSL(voice), temp);
- DEBUG(4,printk("AWE32: [-- loopend=%x/%x]n", vp->loopend, addr));
- /* Q & current address (Q 4bit value, MSB) */
- addr = vp->start - 1;
- addr += FX_OFFSET(fx, fx_lay, AWE_FX_SAMPLE_START,
- AWE_FX_COARSE_SAMPLE_START, vp->mode);
- temp = FX_BYTE(fx, fx_lay, AWE_FX_FILTERQ, vp->parm.filterQ);
- temp = (temp<<28) | (unsigned int)addr;
- awe_poke_dw(AWE_CCCA(voice), temp);
- DEBUG(4,printk("AWE32: [-- startaddr=%x/%x]n", vp->start, addr));
- /* clear unknown registers */
- awe_poke_dw(AWE_00A0(voice), 0);
- awe_poke_dw(AWE_0080(voice), 0);
- /* reset volume */
- awe_poke_dw(AWE_VTFT(voice), (vtarget<<16)|ftarget);
- awe_poke_dw(AWE_CVCF(voice), (vtarget<<16)|ftarget);
- /* set reverb */
- temp = FX_BYTE(fx, fx_lay, AWE_FX_REVERB, vp->parm.reverb);
- temp = (temp << 8) | (ptarget << 16) | voices[voice].aaux;
- awe_poke_dw(AWE_PTRX(voice), temp);
- awe_poke_dw(AWE_CPF(voice), ptarget << 16);
- /* turn on envelope */
- awe_poke(AWE_DCYSUSV(voice),
- FX_COMB(fx, fx_lay, AWE_FX_ENV2_SUSTAIN, AWE_FX_ENV2_DECAY,
- vp->parm.voldcysus));
- voices[voice].state = AWE_ST_ON;
- /* clear voice position for the next note on this channel */
- if (SINGLE_LAYER_MODE()) {
- FX_UNSET(fx, AWE_FX_SAMPLE_START);
- FX_UNSET(fx, AWE_FX_COARSE_SAMPLE_START);
- }
- }
- /* turn off the voice */
- static void
- awe_note_off(int voice)
- {
- awe_voice_info *vp;
- unsigned short tmp;
- FX_Rec *fx = &voices[voice].cinfo->fx;
- FX_Rec *fx_lay = NULL;
- if (voices[voice].layer < MAX_LAYERS)
- fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
- if ((vp = voices[voice].sample) == NULL) {
- voices[voice].state = AWE_ST_OFF;
- return;
- }
- tmp = 0x8000 | FX_BYTE(fx, fx_lay, AWE_FX_ENV1_RELEASE,
- (unsigned char)vp->parm.modrelease);
- awe_poke(AWE_DCYSUS(voice), tmp);
- tmp = 0x8000 | FX_BYTE(fx, fx_lay, AWE_FX_ENV2_RELEASE,
- (unsigned char)vp->parm.volrelease);
- awe_poke(AWE_DCYSUSV(voice), tmp);
- voices[voice].state = AWE_ST_RELEASED;
- }
- /* force to terminate the voice (no releasing echo) */
- static void
- awe_terminate(int voice)
- {
- awe_poke(AWE_DCYSUSV(voice), 0x807F);
- awe_tweak_voice(voice);
- voices[voice].state = AWE_ST_OFF;
- }
- /* turn off other voices with the same exclusive class (for drums) */
- static void
- awe_exclusive_off(int voice)
- {
- int i, exclass;
- if (voices[voice].sample == NULL)
- return;
- if ((exclass = voices[voice].sample->exclusiveClass) == 0)
- return; /* not exclusive */
- /* turn off voices with the same class */
- for (i = 0; i < awe_max_voices; i++) {
- if (i != voice && IS_PLAYING(i) &&
- voices[i].sample && voices[i].ch == voices[voice].ch &&
- voices[i].sample->exclusiveClass == exclass) {
- DEBUG(4,printk("AWE32: [exoff(%d)]n", i));
- awe_terminate(i);
- awe_voice_init(i, TRUE);
- }
- }
- }
- /*
- * change the parameters of an audible voice
- */
- /* change pitch */
- static void
- awe_set_pitch(int voice, int forced)
- {
- if (IS_NO_EFFECT(voice) && !forced) return;
- awe_poke(AWE_IP(voice), voices[voice].apitch);
- DEBUG(3,printk("AWE32: [-- pitch=%x]n", voices[voice].apitch));
- }
- /* calculate & change pitch */
- static void
- awe_set_voice_pitch(int voice, int forced)
- {
- awe_calc_pitch(voice);
- awe_set_pitch(voice, forced);
- }
- /* change volume & cutoff */
- static void
- awe_set_volume(int voice, int forced)
- {
- awe_voice_info *vp;
- unsigned short tmp2;
- FX_Rec *fx = &voices[voice].cinfo->fx;
- FX_Rec *fx_lay = NULL;
- if (voices[voice].layer < MAX_LAYERS)
- fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
- if (!IS_PLAYING(voice) && !forced) return;
- if ((vp = voices[voice].sample) == NULL || vp->index == 0)
- return;
- tmp2 = FX_BYTE(fx, fx_lay, AWE_FX_CUTOFF,
- (unsigned char)voices[voice].acutoff);
- tmp2 = (tmp2 << 8);
- tmp2 |= FX_BYTE(fx, fx_lay, AWE_FX_ATTEN,
- (unsigned char)voices[voice].avol);
- awe_poke(AWE_IFATN(voice), tmp2);
- }
- /* calculate & change volume */
- static void
- awe_set_voice_vol(int voice, int forced)
- {
- if (IS_EMPTY(voice))
- return;
- awe_calc_volume(voice);
- awe_set_volume(voice, forced);
- }
- /* change pan; this could make a click noise.. */
- static void
- awe_set_pan(int voice, int forced)
- {
- unsigned int temp;
- int addr;
- awe_voice_info *vp;
- FX_Rec *fx = &voices[voice].cinfo->fx;
- FX_Rec *fx_lay = NULL;
- if (voices[voice].layer < MAX_LAYERS)
- fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
- if (IS_NO_EFFECT(voice) && !forced) return;
- if ((vp = voices[voice].sample) == NULL || vp->index == 0)
- return;
- /* pan & loop start (pan 8bit, MSB, 0:right, 0xff:left) */
- if (vp->fixpan > 0) /* 0-127 */
- temp = 255 - (int)vp->fixpan * 2;
- else {
- int pos = 0;
- if (vp->pan >= 0) /* 0-127 */
- pos = (int)vp->pan * 2 - 128;
- pos += voices[voice].cinfo->panning; /* -128 - 127 */
- temp = 127 - pos;
- }
- limitvalue(temp, 0, 255);
- if (ctrls[AWE_MD_PAN_EXCHANGE]) {
- temp = 255 - temp;
- }
- if (forced || temp != voices[voice].apan) {
- voices[voice].apan = temp;
- if (temp == 0)
- voices[voice].aaux = 0xff;
- else
- voices[voice].aaux = (-temp) & 0xff;
- addr = vp->loopstart - 1;
- addr += FX_OFFSET(fx, fx_lay, AWE_FX_LOOP_START,
- AWE_FX_COARSE_LOOP_START, vp->mode);
- temp = (temp<<24) | (unsigned int)addr;
- awe_poke_dw(AWE_PSST(voice), temp);
- DEBUG(4,printk("AWE32: [-- loopstart=%x/%x]n", vp->loopstart, addr));
- }
- }
- /* effects change during playing */
- static void
- awe_fx_fmmod(int voice, int forced)
- {
- awe_voice_info *vp;
- FX_Rec *fx = &voices[voice].cinfo->fx;
- FX_Rec *fx_lay = NULL;
- if (voices[voice].layer < MAX_LAYERS)
- fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
- if (IS_NO_EFFECT(voice) && !forced) return;
- if ((vp = voices[voice].sample) == NULL || vp->index == 0)
- return;
- awe_poke(AWE_FMMOD(voice),
- FX_COMB(fx, fx_lay, AWE_FX_LFO1_PITCH, AWE_FX_LFO1_CUTOFF,
- vp->parm.fmmod));
- }
- /* set tremolo (lfo1) volume & frequency */
- static void
- awe_fx_tremfrq(int voice, int forced)
- {
- awe_voice_info *vp;
- FX_Rec *fx = &voices[voice].cinfo->fx;
- FX_Rec *fx_lay = NULL;
- if (voices[voice].layer < MAX_LAYERS)
- fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
- if (IS_NO_EFFECT(voice) && !forced) return;
- if ((vp = voices[voice].sample) == NULL || vp->index == 0)
- return;
- awe_poke(AWE_TREMFRQ(voice),
- FX_COMB(fx, fx_lay, AWE_FX_LFO1_VOLUME, AWE_FX_LFO1_FREQ,
- vp->parm.tremfrq));
- }
- /* set lfo2 pitch & frequency */
- static void
- awe_fx_fm2frq2(int voice, int forced)
- {
- awe_voice_info *vp;
- FX_Rec *fx = &voices[voice].cinfo->fx;
- FX_Rec *fx_lay = NULL;
- if (voices[voice].layer < MAX_LAYERS)
- fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
- if (IS_NO_EFFECT(voice) && !forced) return;
- if ((vp = voices[voice].sample) == NULL || vp->index == 0)
- return;
- awe_poke(AWE_FM2FRQ2(voice),
- FX_COMB(fx, fx_lay, AWE_FX_LFO2_PITCH, AWE_FX_LFO2_FREQ,
- vp->parm.fm2frq2));
- }
- /* Q & current address (Q 4bit value, MSB) */
- static void
- awe_fx_filterQ(int voice, int forced)
- {
- unsigned int addr;
- awe_voice_info *vp;
- FX_Rec *fx = &voices[voice].cinfo->fx;
- FX_Rec *fx_lay = NULL;
- if (voices[voice].layer < MAX_LAYERS)
- fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
- if (IS_NO_EFFECT(voice) && !forced) return;
- if ((vp = voices[voice].sample) == NULL || vp->index == 0)
- return;
- addr = awe_peek_dw(AWE_CCCA(voice)) & 0xffffff;
- addr |= (FX_BYTE(fx, fx_lay, AWE_FX_FILTERQ, vp->parm.filterQ) << 28);
- awe_poke_dw(AWE_CCCA(voice), addr);
- }
- /*
- * calculate pitch offset
- *
- * 0xE000 is no pitch offset at 44100Hz sample.
- * Every 4096 is one octave.
- */
- static void
- awe_calc_pitch(int voice)
- {
- voice_info *vp = &voices[voice];
- awe_voice_info *ap;
- awe_chan_info *cp = voices[voice].cinfo;
- int offset;
- /* search voice information */
- if ((ap = vp->sample) == NULL)
- return;
- if (ap->index == 0) {
- DEBUG(3,printk("AWE32: set sample (%d)n", ap->sample));
- if (awe_set_sample((awe_voice_list*)ap) == 0)
- return;
- }
- /* calculate offset */
- if (ap->fixkey >= 0) {
- DEBUG(3,printk("AWE32: p-> fixkey(%d) tune(%d)n", ap->fixkey, ap->tune));
- offset = (ap->fixkey - ap->root) * 4096 / 12;
- } else {
- DEBUG(3,printk("AWE32: p(%d)-> root(%d) tune(%d)n", vp->note, ap->root, ap->tune));
- offset = (vp->note - ap->root) * 4096 / 12;
- DEBUG(4,printk("AWE32: p-> ofs=%dn", offset));
- }
- offset = (offset * ap->scaleTuning) / 100;
- DEBUG(4,printk("AWE32: p-> scale* ofs=%dn", offset));
- offset += ap->tune * 4096 / 1200;
- DEBUG(4,printk("AWE32: p-> tune+ ofs=%dn", offset));
- if (cp->bender != 0) {
- DEBUG(3,printk("AWE32: p-> bend(%d) %dn", voice, cp->bender));
- /* (819200: 1 semitone) ==> (4096: 12 semitones) */
- offset += cp->bender * cp->bender_range / 2400;
- }
- /* add initial pitch correction */
- if (FX_ON(&cp->fx_layer[vp->layer], AWE_FX_INIT_PITCH))
- offset += cp->fx_layer[vp->layer].val[AWE_FX_INIT_PITCH];
- else if (FX_ON(&cp->fx, AWE_FX_INIT_PITCH))
- offset += cp->fx.val[AWE_FX_INIT_PITCH];
- /* 0xe000: root pitch */
- vp->apitch = 0xe000 + ap->rate_offset + offset;
- DEBUG(4,printk("AWE32: p-> sum aofs=%x, rate_ofs=%dn", vp->apitch, ap->rate_offset));
- if (vp->apitch > 0xffff)
- vp->apitch = 0xffff;
- if (vp->apitch < 0)
- vp->apitch = 0;
- }
- #ifdef AWE_HAS_GUS_COMPATIBILITY
- /* calculate MIDI key and semitone from the specified frequency */
- static void
- awe_calc_pitch_from_freq(int voice, int freq)
- {
- voice_info *vp = &voices[voice];
- awe_voice_info *ap;
- FX_Rec *fx = &voices[voice].cinfo->fx;
- FX_Rec *fx_lay = NULL;
- int offset;
- int note;
- if (voices[voice].layer < MAX_LAYERS)
- fx_lay = &voices[voice].cinfo->fx_layer[voices[voice].layer];
- /* search voice information */
- if ((ap = vp->sample) == NULL)
- return;
- if (ap->index == 0) {
- DEBUG(3,printk("AWE32: set sample (%d)n", ap->sample));
- if (awe_set_sample((awe_voice_list*)ap) == 0)
- return;
- }
- note = freq_to_note(freq);
- offset = (note - ap->root * 100 + ap->tune) * 4096 / 1200;
- offset = (offset * ap->scaleTuning) / 100;
- if (fx_lay && FX_ON(fx_lay, AWE_FX_INIT_PITCH))
- offset += fx_lay->val[AWE_FX_INIT_PITCH];
- else if (FX_ON(fx, AWE_FX_INIT_PITCH))
- offset += fx->val[AWE_FX_INIT_PITCH];
- vp->apitch = 0xe000 + ap->rate_offset + offset;
- if (vp->apitch > 0xffff)
- vp->apitch = 0xffff;
- if (vp->apitch < 0)
- vp->apitch = 0;
- }
- #endif /* AWE_HAS_GUS_COMPATIBILITY */
- /*
- * calculate volume attenuation
- *
- * Voice volume is controlled by volume attenuation parameter.
- * So volume becomes maximum when avol is 0 (no attenuation), and
- * minimum when 255 (-96dB or silence).
- */
- static int vol_table[128] = {
- 255,111,95,86,79,74,70,66,63,61,58,56,54,52,50,49,
- 47,46,45,43,42,41,40,39,38,37,36,35,34,34,33,32,
- 31,31,30,29,29,28,27,27,26,26,25,24,24,23,23,22,
- 22,21,21,21,20,20,19,19,18,18,18,17,17,16,16,16,
- 15,15,15,14,14,14,13,13,13,12,12,12,11,11,11,10,
- 10,10,10,9,9,9,8,8,8,8,7,7,7,7,6,6,
- 6,6,5,5,5,5,5,4,4,4,4,3,3,3,3,3,
- 2,2,2,2,2,1,1,1,1,1,0,0,0,0,0,0,
- };
- /* tables for volume->attenuation calculation */
- static unsigned char voltab1[128] = {
- 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63, 0x63,
- 0x63, 0x2b, 0x29, 0x28, 0x27, 0x26, 0x25, 0x24, 0x23, 0x22,
- 0x21, 0x20, 0x1f, 0x1e, 0x1e, 0x1d, 0x1c, 0x1b, 0x1b, 0x1a,
- 0x19, 0x19, 0x18, 0x17, 0x17, 0x16, 0x16, 0x15, 0x15, 0x14,
- 0x14, 0x13, 0x13, 0x13, 0x12, 0x12, 0x11, 0x11, 0x11, 0x10,
- 0x10, 0x10, 0x0f, 0x0f, 0x0f, 0x0e, 0x0e, 0x0e, 0x0e, 0x0d,
- 0x0d, 0x0d, 0x0c, 0x0c, 0x0c, 0x0c, 0x0c, 0x0b, 0x0b, 0x0b,
- 0x0b, 0x0a, 0x0a, 0x0a, 0x0a, 0x09, 0x09, 0x09, 0x09, 0x09,
- 0x08, 0x08, 0x08, 0x08, 0x08, 0x07, 0x07, 0x07, 0x07, 0x06,
- 0x06, 0x06, 0x06, 0x06, 0x05, 0x05, 0x05, 0x05, 0x05, 0x04,
- 0x04, 0x04, 0x04, 0x04, 0x03, 0x03, 0x03, 0x03, 0x03, 0x02,
- 0x02, 0x02, 0x02, 0x02, 0x02, 0x01, 0x01, 0x01, 0x01, 0x01,
- 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
- };
- static unsigned char voltab2[128] = {
- 0x32, 0x31, 0x30, 0x2f, 0x2e, 0x2d, 0x2c, 0x2b, 0x2a, 0x2a,
- 0x29, 0x28, 0x27, 0x26, 0x25, 0x24, 0x24, 0x23, 0x22, 0x21,
- 0x21, 0x20, 0x1f, 0x1e, 0x1e, 0x1d, 0x1c, 0x1c, 0x1b, 0x1a,
- 0x1a, 0x19, 0x19, 0x18, 0x18, 0x17, 0x16, 0x16, 0x15, 0x15,
- 0x14, 0x14, 0x13, 0x13, 0x13, 0x12, 0x12, 0x11, 0x11, 0x10,
- 0x10, 0x10, 0x0f, 0x0f, 0x0f, 0x0e, 0x0e, 0x0e, 0x0d, 0x0d,
- 0x0d, 0x0c, 0x0c, 0x0c, 0x0b, 0x0b, 0x0b, 0x0b, 0x0a, 0x0a,
- 0x0a, 0x0a, 0x09, 0x09, 0x09, 0x09, 0x09, 0x08, 0x08, 0x08,
- 0x08, 0x08, 0x07, 0x07, 0x07, 0x07, 0x07, 0x06, 0x06, 0x06,
- 0x06, 0x06, 0x06, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05, 0x05,
- 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x03, 0x03, 0x03, 0x03,
- 0x03, 0x03, 0x02, 0x02, 0x02, 0x02, 0x02, 0x02, 0x01, 0x01,
- 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00
- };
- static unsigned char expressiontab[128] = {
- 0x7f, 0x6c, 0x62, 0x5a, 0x54, 0x50, 0x4b, 0x48, 0x45, 0x42,
- 0x40, 0x3d, 0x3b, 0x39, 0x38, 0x36, 0x34, 0x33, 0x31, 0x30,
- 0x2f, 0x2d, 0x2c, 0x2b, 0x2a, 0x29, 0x28, 0x27, 0x26, 0x25,
- 0x24, 0x24, 0x23, 0x22, 0x21, 0x21, 0x20, 0x1f, 0x1e, 0x1e,
- 0x1d, 0x1d, 0x1c, 0x1b, 0x1b, 0x1a, 0x1a, 0x19, 0x18, 0x18,
- 0x17, 0x17, 0x16, 0x16, 0x15, 0x15, 0x15, 0x14, 0x14, 0x13,
- 0x13, 0x12, 0x12, 0x11, 0x11, 0x11, 0x10, 0x10, 0x0f, 0x0f,
- 0x0f, 0x0e, 0x0e, 0x0e, 0x0d, 0x0d, 0x0d, 0x0c, 0x0c, 0x0c,
- 0x0b, 0x0b, 0x0b, 0x0a, 0x0a, 0x0a, 0x09, 0x09, 0x09, 0x09,
- 0x08, 0x08, 0x08, 0x07, 0x07, 0x07, 0x07, 0x06, 0x06, 0x06,
- 0x06, 0x05, 0x05, 0x05, 0x04, 0x04, 0x04, 0x04, 0x04, 0x03,
- 0x03, 0x03, 0x03, 0x02, 0x02, 0x02, 0x02, 0x01, 0x01, 0x01,
- 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
- };
- static void
- awe_calc_volume(int voice)
- {
- voice_info *vp = &voices[voice];
- awe_voice_info *ap;
- awe_chan_info *cp = voices[voice].cinfo;
- int vol;
- /* search voice information */
- if ((ap = vp->sample) == NULL)
- return;
- ap = vp->sample;
- if (ap->index == 0) {
- DEBUG(3,printk("AWE32: set sample (%d)n", ap->sample));
- if (awe_set_sample((awe_voice_list*)ap) == 0)
- return;
- }
-
- if (ctrls[AWE_MD_NEW_VOLUME_CALC]) {
- int main_vol = cp->main_vol * ap->amplitude / 127;
- limitvalue(vp->velocity, 0, 127);
- limitvalue(main_vol, 0, 127);
- limitvalue(cp->expression_vol, 0, 127);
- vol = voltab1[main_vol] + voltab2[vp->velocity];
- vol = (vol * 8) / 3;
- vol += ap->attenuation;
- if (cp->expression_vol < 127)
- vol += ((0x100 - vol) * expressiontab[cp->expression_vol])/128;
- vol += atten_offset;
- if (atten_relative)
- vol += ctrls[AWE_MD_ZERO_ATTEN];
- limitvalue(vol, 0, 255);
- vp->avol = vol;
-
- } else {
- /* 0 - 127 */
- vol = (vp->velocity * cp->main_vol * cp->expression_vol) / (127*127);
- vol = vol * ap->amplitude / 127;
- if (vol < 0) vol = 0;
- if (vol > 127) vol = 127;
- /* calc to attenuation */
- vol = vol_table[vol];
- vol += (int)ap->attenuation;
- vol += atten_offset;
- if (atten_relative)
- vol += ctrls[AWE_MD_ZERO_ATTEN];
- if (vol > 255) vol = 255;
- vp->avol = vol;
- }
- if (cp->bank != AWE_DRUM_BANK && ((awe_voice_parm_block*)(&ap->parm))->volatk < 0x7d) {
- int atten;
- if (vp->velocity < 70) atten = 70;
- else atten = vp->velocity;
- vp->acutoff = (atten * ap->parm.cutoff + 0xa0) >> 7;
- } else {
- vp->acutoff = ap->parm.cutoff;
- }
- DEBUG(3,printk("AWE32: [-- voice(%d) vol=%x]n", voice, vol));
- }
- /* change master volume */
- static void
- awe_change_master_volume(short val)
- {
- limitvalue(val, 0, 127);
- atten_offset = vol_table[val];
- atten_relative = TRUE;
- awe_update_volume();
- }
- /* update volumes of all available channels */
- static void awe_update_volume(void)
- {
- int i;
- for (i = 0; i < awe_max_voices; i++)
- awe_set_voice_vol(i, TRUE);
- }
- /* set sostenuto on */
- static void awe_sostenuto_on(int voice, int forced)
- {
- if (IS_NO_EFFECT(voice) && !forced) return;
- voices[voice].sostenuto = 127;
- }
- /* drop sustain */
- static void awe_sustain_off(int voice, int forced)
- {
- if (voices[voice].state == AWE_ST_SUSTAINED) {
- awe_note_off(voice);
- awe_fx_init(voices[voice].ch);
- awe_voice_init(voice, FALSE);
- }
- }
- /* terminate and initialize voice */
- static void awe_terminate_and_init(int voice, int forced)
- {
- awe_terminate(voice);
- awe_fx_init(voices[voice].ch);
- awe_voice_init(voice, TRUE);
- }
- /*
- * synth operation routines
- */
- #define AWE_VOICE_KEY(v) (0x8000 | (v))
- #define AWE_CHAN_KEY(c,n) (((c) << 8) | ((n) + 1))
- #define KEY_CHAN_MATCH(key,c) (((key) >> 8) == (c))
- /* initialize the voice */
- static void
- awe_voice_init(int voice, int init_all)
- {
- voice_info *vp = &voices[voice];
- /* reset voice search key */
- if (playing_mode == AWE_PLAY_DIRECT)
- vp->key = AWE_VOICE_KEY(voice);
- else
- vp->key = 0;
- /* clear voice mapping */
- voice_alloc->map[voice] = 0;
- /* touch the timing flag */
- vp->time = current_alloc_time;
- /* initialize other parameters if necessary */
- if (init_all) {
- vp->note = -1;
- vp->velocity = 0;
- vp->sostenuto = 0;
- vp->sample = NULL;
- vp->cinfo = &channels[voice];
- vp->ch = voice;
- vp->state = AWE_ST_OFF;
- /* emu8000 parameters */
- vp->apitch = 0;
- vp->avol = 255;
- vp->apan = -1;
- }
- }
- /* clear effects */
- static void awe_fx_init(int ch)
- {
- if (SINGLE_LAYER_MODE() && !ctrls[AWE_MD_KEEP_EFFECT]) {
- memset(&channels[ch].fx, 0, sizeof(channels[ch].fx));
- memset(&channels[ch].fx_layer, 0, sizeof(&channels[ch].fx_layer));
- }
- }
- /* initialize channel info */
- static void awe_channel_init(int ch, int init_all)
- {
- awe_chan_info *cp = &channels[ch];
- cp->channel = ch;
- if (init_all) {
- cp->panning = 0; /* zero center */
- cp->bender_range = 200; /* sense * 100 */
- cp->main_vol = 127;
- if (MULTI_LAYER_MODE() && IS_DRUM_CHANNEL(ch)) {
- cp->instr = ctrls[AWE_MD_DEF_DRUM];
- cp->bank = AWE_DRUM_BANK;
- } else {
- cp->instr = ctrls[AWE_MD_DEF_PRESET];
- cp->bank = ctrls[AWE_MD_DEF_BANK];
- }
- }
- cp->bender = 0; /* zero tune skew */
- cp->expression_vol = 127;
- cp->chan_press = 0;
- cp->sustained = 0;
- if (! ctrls[AWE_MD_KEEP_EFFECT]) {
- memset(&cp->fx, 0, sizeof(cp->fx));
- memset(&cp->fx_layer, 0, sizeof(cp->fx_layer));
- }
- }
- /* change the voice parameters; voice = channel */
- static void awe_voice_change(int voice, fx_affect_func func)
- {
- int i;
- switch (playing_mode) {
- case AWE_PLAY_DIRECT:
- func(voice, FALSE);
- break;
- case AWE_PLAY_INDIRECT:
- for (i = 0; i < awe_max_voices; i++)
- if (voices[i].key == AWE_VOICE_KEY(voice))
- func(i, FALSE);
- break;
- default:
- for (i = 0; i < awe_max_voices; i++)
- if (KEY_CHAN_MATCH(voices[i].key, voice))
- func(i, FALSE);
- break;
- }
- }
- /*
- * device open / close
- */
- /* open device:
- * reset status of all voices, and clear sample position flag
- */
- static int
- awe_open(int dev, int mode)
- {
- if (awe_busy)
- return -EBUSY;
- awe_busy = TRUE;
- /* set default mode */
- awe_init_ctrl_parms(FALSE);
- atten_relative = TRUE;
- atten_offset = 0;
- drum_flags = DEFAULT_DRUM_FLAGS;
- playing_mode = AWE_PLAY_INDIRECT;
- /* reset voices & channels */
- awe_reset(dev);
- patch_opened = 0;
- return 0;
- }
- /* close device:
- * reset all voices again (terminate sounds)
- */
- static void
- awe_close(int dev)
- {
- awe_reset(dev);
- awe_busy = FALSE;
- }
- /* set miscellaneous mode parameters
- */
- static void
- awe_init_ctrl_parms(int init_all)
- {
- int i;
- for (i = 0; i < AWE_MD_END; i++) {
- if (init_all || ctrl_parms[i].init_each_time)
- ctrls[i] = ctrl_parms[i].value;
- }
- }
- /* sequencer I/O control:
- */
- static int
- awe_ioctl(int dev, unsigned int cmd, caddr_t arg)
- {
- switch (cmd) {
- case SNDCTL_SYNTH_INFO:
- if (playing_mode == AWE_PLAY_DIRECT)
- awe_info.nr_voices = awe_max_voices;
- else
- awe_info.nr_voices = AWE_MAX_CHANNELS;
- memcpy((char*)arg, &awe_info, sizeof(awe_info));
- return 0;
- break;
- case SNDCTL_SEQ_RESETSAMPLES:
- awe_reset(dev);
- awe_reset_samples();
- return 0;
- break;
- case SNDCTL_SEQ_PERCMODE:
- /* what's this? */
- return 0;
- break;
- case SNDCTL_SYNTH_MEMAVL:
- return memsize - awe_free_mem_ptr() * 2;
- default:
- printk(KERN_WARNING "AWE32: unsupported ioctl %dn", cmd);
- return -EINVAL;
- }
- }
- static int voice_in_range(int voice)
- {
- if (playing_mode == AWE_PLAY_DIRECT) {
- if (voice < 0 || voice >= awe_max_voices)
- return FALSE;
- } else {
- if (voice < 0 || voice >= AWE_MAX_CHANNELS)
- return FALSE;
- }
- return TRUE;
- }
- static void release_voice(int voice, int do_sustain)
- {
- if (IS_NO_SOUND(voice))
- return;
- if (do_sustain && (voices[voice].cinfo->sustained == 127 ||
- voices[voice].sostenuto == 127))
- voices[voice].state = AWE_ST_SUSTAINED;
- else {
- awe_note_off(voice);
- awe_fx_init(voices[voice].ch);
- awe_voice_init(voice, FALSE);
- }
- }
- /* release all notes */
- static void awe_note_off_all(int do_sustain)
- {
- int i;
- for (i = 0; i < awe_max_voices; i++)
- release_voice(i, do_sustain);
- }
- /* kill a voice:
- * not terminate, just release the voice.
- */
- static int
- awe_kill_note(int dev, int voice, int note, int velocity)
- {
- int i, v2, key;
- DEBUG(2,printk("AWE32: [off(%d) nt=%d vl=%d]n", voice, note, velocity));
- if (! voice_in_range(voice))
- return -EINVAL;
- switch (playing_mode) {
- case AWE_PLAY_DIRECT:
- case AWE_PLAY_INDIRECT:
- key = AWE_VOICE_KEY(voice);
- break;
- case AWE_PLAY_MULTI2:
- v2 = voice_alloc->map[voice] >> 8;
- voice_alloc->map[voice] = 0;
- voice = v2;
- if (voice < 0 || voice >= AWE_MAX_CHANNELS)
- return -EINVAL;
- /* continue to below */
- default:
- key = AWE_CHAN_KEY(voice, note);
- break;
- }
- for (i = 0; i < awe_max_voices; i++) {
- if (voices[i].key == key)
- release_voice(i, TRUE);
- }
- return 0;
- }
- static void start_or_volume_change(int voice, int velocity)
- {
- voices[voice].velocity = velocity;
- awe_calc_volume(voice);
- if (voices[voice].state == AWE_ST_STANDBY)
- awe_note_on(voice);
- else if (voices[voice].state == AWE_ST_ON)
- awe_set_volume(voice, FALSE);
- }
- static void set_and_start_voice(int voice, int state)
- {
- /* calculate pitch & volume parameters */
- voices[voice].state = state;
- awe_calc_pitch(voice);
- awe_calc_volume(voice);
- if (state == AWE_ST_ON)
- awe_note_on(voice);
- }
- /* start a voice:
- * if note is 255, identical with aftertouch function.
- * Otherwise, start a voice with specified not and volume.
- */
- static int
- awe_start_note(int dev, int voice, int note, int velocity)
- {
- int i, key, state, volonly;
- DEBUG(2,printk("AWE32: [on(%d) nt=%d vl=%d]n", voice, note, velocity));
- if (! voice_in_range(voice))
- return -EINVAL;
-
- if (velocity == 0)
- state = AWE_ST_STANDBY; /* stand by for playing */
- else
- state = AWE_ST_ON; /* really play */
- volonly = FALSE;
- switch (playing_mode) {
- case AWE_PLAY_DIRECT:
- case AWE_PLAY_INDIRECT:
- key = AWE_VOICE_KEY(voice);
- if (note == 255)
- volonly = TRUE;
- break;
- case AWE_PLAY_MULTI2:
- voice = voice_alloc->map[voice] >> 8;
- if (voice < 0 || voice >= AWE_MAX_CHANNELS)
- return -EINVAL;
- /* continue to below */
- default:
- if (note >= 128) { /* key volume mode */
- note -= 128;
- volonly = TRUE;
- }
- key = AWE_CHAN_KEY(voice, note);
- break;
- }
- /* dynamic volume change */
- if (volonly) {
- for (i = 0; i < awe_max_voices; i++) {
- if (voices[i].key == key)
- start_or_volume_change(i, velocity);
- }
- return 0;
- }
- /* if the same note still playing, stop it */
- if (playing_mode != AWE_PLAY_DIRECT || ctrls[AWE_MD_EXCLUSIVE_SOUND]) {
- for (i = 0; i < awe_max_voices; i++)
- if (voices[i].key == key) {
- if (voices[i].state == AWE_ST_ON) {
- awe_note_off(i);
- awe_voice_init(i, FALSE);
- } else if (voices[i].state == AWE_ST_STANDBY)
- awe_voice_init(i, TRUE);
- }
- }
- /* allocate voices */
- if (playing_mode == AWE_PLAY_DIRECT)
- awe_alloc_one_voice(voice, note, velocity);
- else
- awe_alloc_multi_voices(voice, note, velocity, key);
- /* turn off other voices exlusively (for drums) */
- for (i = 0; i < awe_max_voices; i++)
- if (voices[i].key == key)
- awe_exclusive_off(i);
- /* set up pitch and volume parameters */
- for (i = 0; i < awe_max_voices; i++) {
- if (voices[i].key == key && voices[i].state == AWE_ST_OFF)
- set_and_start_voice(i, state);
- }
- return 0;
- }
- /* calculate hash key */
- static int
- awe_search_key(int bank, int preset, int note)
- {
- unsigned int key;
- #if 1 /* new hash table */
- if (bank == AWE_DRUM_BANK)
- key = preset + note + 128;
- else
- key = bank + preset;
- #else
- key = preset;
- #endif
- key %= AWE_MAX_PRESETS;
- return (int)key;
- }
- /* search instrument from hash table */
- static awe_voice_list *
- awe_search_instr(int bank, int preset, int note)
- {
- awe_voice_list *p;
- int key, key2;
- key = awe_search_key(bank, preset, note);
- for (p = preset_table[key]; p; p = p->next_bank) {
- if (p->instr == preset && p->bank == bank)
- return p;
- }
- key2 = awe_search_key(bank, preset, 0); /* search default */
- if (key == key2)
- return NULL;
- for (p = preset_table[key2]; p; p = p->next_bank) {
- if (p->instr == preset && p->bank == bank)
- return p;
- }
- return NULL;
- }
- /* assign the instrument to a voice */
- static int
- awe_set_instr_2(int dev, int voice, int instr_no)
- {
- if (playing_mode == AWE_PLAY_MULTI2) {
- voice = voice_alloc->map[voice] >> 8;
- if (voice < 0 || voice >= AWE_MAX_CHANNELS)
- return -EINVAL;
- }
- return awe_set_instr(dev, voice, instr_no);
- }
- /* assign the instrument to a channel; voice is the channel number */
- static int
- awe_set_instr(int dev, int voice, int instr_no)
- {
- awe_chan_info *cinfo;
- if (! voice_in_range(voice))
- return -EINVAL;
- if (instr_no < 0 || instr_no >= AWE_MAX_PRESETS)
- return -EINVAL;
- cinfo = &channels[voice];
- cinfo->instr = instr_no;
- DEBUG(2,printk("AWE32: [program(%d) %d]n", voice, instr_no));
- return 0;
- }
- /* reset all voices; terminate sounds and initialize parameters */
- static void
- awe_reset(int dev)
- {
- int i;
- current_alloc_time = 0;
- /* don't turn off voice 31 and 32. they are used also for FM voices */
- for (i = 0; i < awe_max_voices; i++) {
- awe_terminate(i);
- awe_voice_init(i, TRUE);
- }
- for (i = 0; i < AWE_MAX_CHANNELS; i++)
- awe_channel_init(i, TRUE);
- for (i = 0; i < 16; i++) {
- awe_operations.chn_info[i].controllers[CTL_MAIN_VOLUME] = 127;
- awe_operations.chn_info[i].controllers[CTL_EXPRESSION] = 127;
- }
- awe_init_fm();
- awe_tweak();
- }
- /* hardware specific control:
- * GUS specific and AWE32 specific controls are available.
- */
- static void
- awe_hw_control(int dev, unsigned char *event)
- {
- int cmd = event[2];
- if (cmd & _AWE_MODE_FLAG)
- awe_hw_awe_control(dev, cmd & _AWE_MODE_VALUE_MASK, event);
- #ifdef AWE_HAS_GUS_COMPATIBILITY
- else
- awe_hw_gus_control(dev, cmd & _AWE_MODE_VALUE_MASK, event);
- #endif
- }
- #ifdef AWE_HAS_GUS_COMPATIBILITY
- /* GUS compatible controls */
- static void
- awe_hw_gus_control(int dev, int cmd, unsigned char *event)
- {
- int voice, i, key;
- unsigned short p1;
- short p2;
- int plong;
- if (MULTI_LAYER_MODE())
- return;
- if (cmd == _GUS_NUMVOICES)
- return;
- voice = event[3];
- if (! voice_in_range(voice))
- return;
- p1 = *(unsigned short *) &event[4];
- p2 = *(short *) &event[6];
- plong = *(int*) &event[4];
- switch (cmd) {
- case _GUS_VOICESAMPLE:
- awe_set_instr(dev, voice, p1);
- return;
- case _GUS_VOICEBALA:
- /* 0 to 15 --> -128 to 127 */
- awe_panning(dev, voice, ((int)p1 << 4) - 128);
- return;
- case _GUS_VOICEVOL:
- case _GUS_VOICEVOL2:
- /* not supported yet */
- return;
- case _GUS_RAMPRANGE:
- case _GUS_RAMPRATE:
- case _GUS_RAMPMODE:
- case _GUS_RAMPON:
- case _GUS_RAMPOFF:
- /* volume ramping not supported */
- return;
- case _GUS_VOLUME_SCALE:
- return;
- case _GUS_VOICE_POS:
- FX_SET(&channels[voice].fx, AWE_FX_SAMPLE_START,
- (short)(plong & 0x7fff));
- FX_SET(&channels[voice].fx, AWE_FX_COARSE_SAMPLE_START,
- (plong >> 15) & 0xffff);
- return;
- }
- key = AWE_VOICE_KEY(voice);
- for (i = 0; i < awe_max_voices; i++) {
- if (voices[i].key == key) {
- switch (cmd) {
- case _GUS_VOICEON:
- awe_note_on(i);
- break;
- case _GUS_VOICEOFF:
- awe_terminate(i);
- awe_fx_init(voices[i].ch);
- awe_voice_init(i, TRUE);
- break;
- case _GUS_VOICEFADE:
- awe_note_off(i);
- awe_fx_init(voices[i].ch);
- awe_voice_init(i, FALSE);
- break;
- case _GUS_VOICEFREQ:
- awe_calc_pitch_from_freq(i, plong);
- break;
- }
- }
- }
- }
- #endif /* gus_compat */
- /* AWE32 specific controls */
- static void
- awe_hw_awe_control(int dev, int cmd, unsigned char *event)
- {
- int voice;
- unsigned short p1;
- short p2;
- int i;
- voice = event[3];
- if (! voice_in_range(voice))
- return;
- if (playing_mode == AWE_PLAY_MULTI2) {
- voice = voice_alloc->map[voice] >> 8;
- if (voice < 0 || voice >= AWE_MAX_CHANNELS)
- return;
- }
- p1 = *(unsigned short *) &event[4];
- p2 = *(short *) &event[6];
- switch (cmd) {
- case _AWE_DEBUG_MODE:
- ctrls[AWE_MD_DEBUG_MODE] = p1;
- printk(KERN_DEBUG "AWE32: debug mode = %dn", ctrls[AWE_MD_DEBUG_MODE]);
- break;
- case _AWE_REVERB_MODE:
- ctrls[AWE_MD_REVERB_MODE] = p1;
- awe_update_reverb_mode();
- break;
- case _AWE_CHORUS_MODE:
- ctrls[AWE_MD_CHORUS_MODE] = p1;
- awe_update_chorus_mode();
- break;
-
- case _AWE_REMOVE_LAST_SAMPLES:
- DEBUG(0,printk("AWE32: remove last samplesn"));
- awe_reset(0);
- if (locked_sf_id > 0)
- awe_remove_samples(locked_sf_id);
- break;
- case _AWE_INITIALIZE_CHIP:
- awe_initialize();
- break;
- case _AWE_SEND_EFFECT:
- i = -1;
- if (p1 >= 0x100) {
- i = (p1 >> 8);
- if (i < 0 || i >= MAX_LAYERS)
- break;
- }
- awe_send_effect(voice, i, p1, p2);
- break;
- case _AWE_RESET_CHANNEL:
- awe_channel_init(voice, !p1);
- break;
-
- case _AWE_TERMINATE_ALL:
- awe_reset(0);
- break;
- case _AWE_TERMINATE_CHANNEL:
- awe_voice_change(voice, awe_terminate_and_init);
- break;
- case _AWE_RELEASE_ALL:
- awe_note_off_all(FALSE);
- break;
- case _AWE_NOTEOFF_ALL:
- awe_note_off_all(TRUE);
- break;
- case _AWE_INITIAL_VOLUME:
- DEBUG(0,printk("AWE32: init attenuation %dn", p1));
- atten_relative = (char)p2;
- atten_offset = (short)p1;
- awe_update_volume();
- break;
- case _AWE_CHN_PRESSURE:
- channels[voice].chan_press = p1;
- awe_modwheel_change(voice, p1);
- break;
- case _AWE_CHANNEL_MODE:
- DEBUG(0,printk("AWE32: channel mode = %dn", p1));
- playing_mode = p1;
- awe_reset(0);
- break;
- case _AWE_DRUM_CHANNELS:
- DEBUG(0,printk("AWE32: drum flags = %xn", p1));
- drum_flags = *(unsigned int*)&event[4];
- break;
- case _AWE_MISC_MODE:
- DEBUG(0,printk("AWE32: ctrl parms = %d %dn", p1, p2));
- if (p1 > AWE_MD_VERSION && p1 < AWE_MD_END) {
- ctrls[p1] = p2;
- if (ctrl_parms[p1].update)
- ctrl_parms[p1].update();
- }
- break;
- case _AWE_EQUALIZER:
- ctrls[AWE_MD_BASS_LEVEL] = p1;
- ctrls[AWE_MD_TREBLE_LEVEL] = p2;
- awe_update_equalizer();
- break;
- default:
- DEBUG(0,printk("AWE32: hw control cmd=%d voice=%dn", cmd, voice));
- break;
- }
- }
- /* change effects */
- static void
- awe_send_effect(int voice, int layer, int type, int val)
- {
- awe_chan_info *cinfo;
- FX_Rec *fx;
- int mode;
- cinfo = &channels[voice];
- if (layer >= 0 && layer < MAX_LAYERS)
- fx = &cinfo->fx_layer[layer];
- else
- fx = &cinfo->fx;
- if (type & 0x40)
- mode = FX_FLAG_OFF;
- else if (type & 0x80)
- mode = FX_FLAG_ADD;
- else
- mode = FX_FLAG_SET;
- type &= 0x3f;
- if (type >= 0 && type < AWE_FX_END) {
- DEBUG(2,printk("AWE32: effects (%d) %d %dn", voice, type, val));
- if (mode == FX_FLAG_SET)
- FX_SET(fx, type, val);
- else if (mode == FX_FLAG_ADD)
- FX_ADD(fx, type, val);
- else
- FX_UNSET(fx, type);
- if (mode != FX_FLAG_OFF && parm_defs[type].realtime) {
- DEBUG(2,printk("AWE32: fx_realtime (%d)n", voice));
- awe_voice_change(voice, parm_defs[type].realtime);
- }
- }
- }
- /* change modulation wheel; voice is already mapped on multi2 mode */
- static void
- awe_modwheel_change(int voice, int value)
- {
- int i;
- awe_chan_info *cinfo;
- cinfo = &channels[voice];
- i = value * ctrls[AWE_MD_MOD_SENSE] / 1200;
- FX_ADD(&cinfo->fx, AWE_FX_LFO1_PITCH, i);
- awe_voice_change(voice, awe_fx_fmmod);
- FX_ADD(&cinfo->fx, AWE_FX_LFO2_PITCH, i);
- awe_voice_change(voice, awe_fx_fm2frq2);
- }
- /* voice pressure change */
- static void
- awe_aftertouch(int dev, int voice, int pressure)
- {
- int note;
- DEBUG(2,printk("AWE32: [after(%d) %d]n", voice, pressure));
- if (! voice_in_range(voice))
- return;
- switch (playing_mode) {
- case AWE_PLAY_DIRECT:
- case AWE_PLAY_INDIRECT:
- awe_start_note(dev, voice, 255, pressure);
- break;
- case AWE_PLAY_MULTI2:
- note = (voice_alloc->map[voice] & 0xff) - 1;
- awe_key_pressure(dev, voice, note + 0x80, pressure);
- break;
- }
- }
- /* voice control change */
- static void
- awe_controller(int dev, int voice, int ctrl_num, int value)
- {
- awe_chan_info *cinfo;
- if (! voice_in_range(voice))
- return;
- if (playing_mode == AWE_PLAY_MULTI2) {
- voice = voice_alloc->map[voice] >> 8;
- if (voice < 0 || voice >= AWE_MAX_CHANNELS)
- return;
- }
- cinfo = &channels[voice];
- switch (ctrl_num) {
- case CTL_BANK_SELECT: /* MIDI control #0 */
- DEBUG(2,printk("AWE32: [bank(%d) %d]n", voice, value));
- if (MULTI_LAYER_MODE() && IS_DRUM_CHANNEL(voice) &&
- !ctrls[AWE_MD_TOGGLE_DRUM_BANK])
- break;
- if (value < 0 || value > 255)
- break;
- cinfo->bank = value;
- if (cinfo->bank == AWE_DRUM_BANK)
- DRUM_CHANNEL_ON(cinfo->channel);
- else
- DRUM_CHANNEL_OFF(cinfo->channel);
- awe_set_instr(dev, voice, cinfo->instr);
- break;
- case CTL_MODWHEEL: /* MIDI control #1 */
- DEBUG(2,printk("AWE32: [modwheel(%d) %d]n", voice, value));
- awe_modwheel_change(voice, value);
- break;
- case CTRL_PITCH_BENDER: /* SEQ1 V2 contorl */
- DEBUG(2,printk("AWE32: [bend(%d) %d]n", voice, value));
- /* zero centered */
- cinfo->bender = value;
- awe_voice_change(voice, awe_set_voice_pitch);
- break;
- case CTRL_PITCH_BENDER_RANGE: /* SEQ1 V2 control */
- DEBUG(2,printk("AWE32: [range(%d) %d]n", voice, value));
- /* value = sense x 100 */
- cinfo->bender_range = value;
- /* no audible pitch change yet.. */
- break;
- case CTL_EXPRESSION: /* MIDI control #11 */
- if (SINGLE_LAYER_MODE())
- value /= 128;
- case CTRL_EXPRESSION: /* SEQ1 V2 control */
- DEBUG(2,printk("AWE32: [expr(%d) %d]n", voice, value));
- /* 0 - 127 */
- cinfo->expression_vol = value;
- awe_voice_change(voice, awe_set_voice_vol);
- break;
- case CTL_PAN: /* MIDI control #10 */
- DEBUG(2,printk("AWE32: [pan(%d) %d]n", voice, value));
- /* (0-127) -> signed 8bit */
- cinfo->panning = value * 2 - 128;
- if (ctrls[AWE_MD_REALTIME_PAN])
- awe_voice_change(voice, awe_set_pan);
- break;
- case CTL_MAIN_VOLUME: /* MIDI control #7 */
- if (SINGLE_LAYER_MODE())
- value = (value * 100) / 16383;
- case CTRL_MAIN_VOLUME: /* SEQ1 V2 control */
- DEBUG(2,printk("AWE32: [mainvol(%d) %d]n", voice, value));
- /* 0 - 127 */
- cinfo->main_vol = value;
- awe_voice_change(voice, awe_set_voice_vol);
- break;
- case CTL_EXT_EFF_DEPTH: /* reverb effects: 0-127 */
- DEBUG(2,printk("AWE32: [reverb(%d) %d]n", voice, value));
- FX_SET(&cinfo->fx, AWE_FX_REVERB, value * 2);
- break;
- case CTL_CHORUS_DEPTH: /* chorus effects: 0-127 */
- DEBUG(2,printk("AWE32: [chorus(%d) %d]n", voice, value));
- FX_SET(&cinfo->fx, AWE_FX_CHORUS, value * 2);
- break;
- case 120: /* all sounds off */
- awe_note_off_all(FALSE);
- break;
- case 123: /* all notes off */
- awe_note_off_all(TRUE);
- break;
- case CTL_SUSTAIN: /* MIDI control #64 */
- cinfo->sustained = value;
- if (value != 127)
- awe_voice_change(voice, awe_sustain_off);
- break;
- case CTL_SOSTENUTO: /* MIDI control #66 */
- if (value == 127)
- awe_voice_change(voice, awe_sostenuto_on);
- else
- awe_voice_change(voice, awe_sustain_off);
- break;
- default:
- DEBUG(0,printk("AWE32: [control(%d) ctrl=%d val=%d]n",
- voice, ctrl_num, value));
- break;
- }
- }
- /* voice pan change (value = -128 - 127) */
- static void
- awe_panning(int dev, int voice, int value)
- {
- awe_chan_info *cinfo;
- if (! voice_in_range(voice))
- return;
- if (playing_mode == AWE_PLAY_MULTI2) {
- voice = voice_alloc->map[voice] >> 8;
- if (voice < 0 || voice >= AWE_MAX_CHANNELS)
- return;
- }
- cinfo = &channels[voice];
- cinfo->panning = value;
- DEBUG(2,printk("AWE32: [pan(%d) %d]n", voice, cinfo->panning));
- if (ctrls[AWE_MD_REALTIME_PAN])
- awe_voice_change(voice, awe_set_pan);
- }
- /* volume mode change */
- static void
- awe_volume_method(int dev, int mode)
- {
- /* not impremented */
- DEBUG(0,printk("AWE32: [volmethod mode=%d]n", mode));
- }
- /* pitch wheel change: 0-16384 */
- static void
- awe_bender(int dev, int voice, int value)
- {
- awe_chan_info *cinfo;
- if (! voice_in_range(voice))
- return;
- if (playing_mode == AWE_PLAY_MULTI2) {
- voice = voice_alloc->map[voice] >> 8;
- if (voice < 0 || voice >= AWE_MAX_CHANNELS)
- return;
- }
- /* convert to zero centered value */
- cinfo = &channels[voice];
- cinfo->bender = value - 8192;
- DEBUG(2,printk("AWE32: [bend(%d) %d]n", voice, cinfo->bender));
- awe_voice_change(voice, awe_set_voice_pitch);
- }
- /*
- * load a sound patch:
- * three types of patches are accepted: AWE, GUS, and SYSEX.
- */
- static int
- awe_load_patch(int dev, int format, const char *addr,
- int offs, int count, int pmgr_flag)
- {
- awe_patch_info patch;
- int rc = 0;
- #ifdef AWE_HAS_GUS_COMPATIBILITY
- if (format == GUS_PATCH) {
- return awe_load_guspatch(addr, offs, count, pmgr_flag);
- } else
- #endif
- if (format == SYSEX_PATCH) {
- /* no system exclusive message supported yet */
- return 0;
- } else if (format != AWE_PATCH) {
- printk(KERN_WARNING "AWE32 Error: Invalid patch format (key) 0x%xn", format);
- return -EINVAL;
- }
-
- if (count < AWE_PATCH_INFO_SIZE) {
- printk(KERN_WARNING "AWE32 Error: Patch header too shortn");
- return -EINVAL;
- }
- if (copy_from_user(((char*)&patch) + offs, addr + offs,
- AWE_PATCH_INFO_SIZE - offs))
- return -EFAULT;
- count -= AWE_PATCH_INFO_SIZE;
- if (count < patch.len) {
- printk(KERN_WARNING "AWE32: sample: Patch record too short (%d<%d)n",
- count, patch.len);
- return -EINVAL;
- }
-
- switch (patch.type) {
- case AWE_LOAD_INFO:
- rc = awe_load_info(&patch, addr, count);
- break;
- case AWE_LOAD_DATA:
- rc = awe_load_data(&patch, addr, count);
- break;
- case AWE_OPEN_PATCH:
- rc = awe_open_patch(&patch, addr, count);
- break;
- case AWE_CLOSE_PATCH:
- rc = awe_close_patch(&patch, addr, count);
- break;
- case AWE_UNLOAD_PATCH:
- rc = awe_unload_patch(&patch, addr, count);
- break;
- case AWE_REPLACE_DATA:
- rc = awe_replace_data(&patch, addr, count);
- break;
- case AWE_MAP_PRESET:
- rc = awe_load_map(&patch, addr, count);
- break;
- /* case AWE_PROBE_INFO:
- rc = awe_probe_info(&patch, addr, count);
- break;*/
- case AWE_PROBE_DATA:
- rc = awe_probe_data(&patch, addr, count);
- break;
- case AWE_REMOVE_INFO:
- rc = awe_remove_info(&patch, addr, count);
- break;
- case AWE_LOAD_CHORUS_FX:
- rc = awe_load_chorus_fx(&patch, addr, count);
- break;
- case AWE_LOAD_REVERB_FX:
- rc = awe_load_reverb_fx(&patch, addr, count);
- break;
- default:
- printk(KERN_WARNING "AWE32 Error: unknown patch format type %dn",
- patch.type);
- rc = -EINVAL;
- }
- return rc;
- }
- /* create an sf list record */
- static int
- awe_create_sf(int type, char *name)
- {
- sf_list *rec;
- /* terminate sounds */
- awe_reset(0);
- rec = (sf_list *)kmalloc(sizeof(*rec), GFP_KERNEL);
- if (rec == NULL)
- return 1; /* no memory */
- rec->sf_id = current_sf_id + 1;
- rec->type = type;
- if (/*current_sf_id == 0 ||*/ (type & AWE_PAT_LOCKED) != 0)
- locked_sf_id = current_sf_id + 1;
- rec->num_info = awe_free_info();
- rec->num_sample = awe_free_sample();
- rec->mem_ptr = awe_free_mem_ptr();
- rec->infos = rec->last_infos = NULL;
- rec->samples = rec->last_samples = NULL;
- /* add to linked-list */
- rec->next = NULL;
- rec->prev = sftail;
- if (sftail)
- sftail->next = rec;
- else
- sfhead = rec;
- sftail = rec;
- current_sf_id++;
- #ifdef AWE_ALLOW_SAMPLE_SHARING
- rec->shared = NULL;
- if (name)
- memcpy(rec->name, name, AWE_PATCH_NAME_LEN);
- else
- strcpy(rec->name, "*TEMPORARY*");
- if (current_sf_id > 1 && name && (type & AWE_PAT_SHARED) != 0) {
- /* is the current font really a shared font? */
- if (is_shared_sf(rec->name)) {
- /* check if the shared font is already installed */
- sf_list *p;
- for (p = rec->prev; p; p = p->prev) {
- if (is_identical_name(rec->name, p)) {
- rec->shared = p;
- break;
- }
- }
- }
- }
- #endif /* allow sharing */
- return 0;
- }
- #ifdef AWE_ALLOW_SAMPLE_SHARING
- /* check if the given name is a valid shared name */
- #define ASC_TO_KEY(c) ((c) - 'A' + 1)
- static int is_shared_sf(unsigned char *name)
- {
- static unsigned char id_head[4] = {
- ASC_TO_KEY('A'), ASC_TO_KEY('W'), ASC_TO_KEY('E'),
- AWE_MAJOR_VERSION,
- };
- if (memcmp(name, id_head, 4) == 0)
- return TRUE;
- return FALSE;
- }
- /* check if the given name matches to the existing list */
- static int is_identical_name(unsigned char *name, sf_list *p)
- {
- char *id = p->name;
- if (is_shared_sf(id) && memcmp(id, name, AWE_PATCH_NAME_LEN) == 0)
- return TRUE;
- return FALSE;
- }
- /* check if the given voice info exists */
- static int info_duplicated(sf_list *sf, awe_voice_list *rec)
- {
- /* search for all sharing lists */
- for (; sf; sf = sf->shared) {
- awe_voice_list *p;
- for (p = sf->infos; p; p = p->next) {
- if (p->type == V_ST_NORMAL &&
- p->bank == rec->bank &&
- p->instr == rec->instr &&
- p->v.low == rec->v.low &&
- p->v.high == rec->v.high &&
- p->v.sample == rec->v.sample)
- return TRUE;
- }
- }
- return FALSE;
- }
- #endif /* AWE_ALLOW_SAMPLE_SHARING */
- /* free sf_list record */
- /* linked-list in this function is not cared */
- static void
- awe_free_sf(sf_list *sf)
- {
- if (sf->infos) {
- awe_voice_list *p, *next;
- for (p = sf->infos; p; p = next) {
- next = p->next;
- kfree(p);
- }
- }
- if (sf->samples) {
- awe_sample_list *p, *next;
- for (p = sf->samples; p; p = next) {
- next = p->next;
- kfree(p);
- }
- }
- kfree(sf);
- }
- /* open patch; create sf list and set opened flag */
- static int
- awe_open_patch(awe_patch_info *patch, const char *addr, int count)
- {
- awe_open_parm parm;
- int shared;
- if (copy_from_user(&parm, addr + AWE_PATCH_INFO_SIZE, sizeof(parm)))
- return -EFAULT;
- shared = FALSE;
- #ifdef AWE_ALLOW_SAMPLE_SHARING
- if (sftail && (parm.type & AWE_PAT_SHARED) != 0) {
- /* is the previous font the same font? */
- if (is_identical_name(parm.name, sftail)) {
- /* then append to the previous */
- shared = TRUE;
- awe_reset(0);
- if (parm.type & AWE_PAT_LOCKED)
- locked_sf_id = current_sf_id;
- }
- }
- #endif /* allow sharing */
- if (! shared) {
- if (awe_create_sf(parm.type, parm.name)) {
- printk(KERN_ERR "AWE32: can't open: failed to alloc new listn");
- return -ENOMEM;
- }
- }
- patch_opened = TRUE;
- return current_sf_id;
- }
- /* check if the patch is already opened */
- static sf_list *
- check_patch_opened(int type, char *name)
- {
- if (! patch_opened) {
- if (awe_create_sf(type, name)) {