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Diffstat (limited to 'sound/oss/awe_wave.c')
| -rw-r--r-- | sound/oss/awe_wave.c | 6148 |
1 files changed, 0 insertions, 6148 deletions
diff --git a/sound/oss/awe_wave.c b/sound/oss/awe_wave.c deleted file mode 100644 index 1b968f7ecb3..00000000000 --- a/sound/oss/awe_wave.c +++ /dev/null @@ -1,6148 +0,0 @@ -/* - * sound/oss/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. - */ - -/* - * Changelog: - * Aug 18, 2003, Adam Belay <ambx1@neo.rr.com> - * - detection code rewrite - */ - -#include <linux/awe_voice.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/string.h> -#include <linux/pnp.h> - -#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; /* current number of fonts */ -static int locked_sf_id; /* locked position */ -static sf_list *sfhead, *sftail; /* 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 - -static int io = AWE_DEFAULT_BASE_ADDR; /* Emu8000 base address */ -static int memsize = AWE_DEFAULT_MEM_SIZE; /* memory size in Kbytes */ -#ifdef CONFIG_PNP -static int isapnp = -1; -#else -static int isapnp; -#endif - -MODULE_AUTHOR("Takashi Iwai <iwai@ww.uni-erlangen.de>"); -MODULE_DESCRIPTION("SB AWE32/64 WaveTable driver"); -MODULE_LICENSE("GPL"); - -module_param(io, int, 0); -MODULE_PARM_DESC(io, "base i/o port of Emu8000"); -module_param(memsize, int, 0); -MODULE_PARM_DESC(memsize, "onboard DRAM size in Kbytes"); -module_param(isapnp, bool, 0); -MODULE_PARM_DESC(isapnp, "use ISAPnP detection"); - -/* 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; /* sample already loaded? */ - -static char atten_relative = FALSE; -static short atten_offset; - -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; /* 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_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 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, void __user * 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 __user *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 __user *addr, int count); -static int awe_close_patch(awe_patch_info *patch, const char __user *addr, int count); -static int awe_unload_patch(awe_patch_info *patch, const char __user *addr, int count); -static int awe_load_info(awe_patch_info *patch, const char __user *addr, int count); -static int awe_remove_info(awe_patch_info *patch, const char __user *addr, int count); -static int awe_load_data(awe_patch_info *patch, const char __user *addr, int count); -static int awe_replace_data(awe_patch_info *patch, const char __user *addr, int count); -static int awe_load_map(awe_patch_info *patch, const char __user *addr, int count); -#ifdef AWE_HAS_GUS_COMPATIBILITY -static int awe_load_guspatch(const char __user *addr, int offs, int size, int pmgr_flag); -#endif -/*static int awe_probe_info(awe_patch_info *patch, const char __user *addr, int count);*/ -static int awe_probe_data(awe_patch_info *patch, const char __user *addr, int count); -static sf_list *check_patch_opened(int type, char *name); -static int awe_write_wave_data(const char __user *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 __user *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 __user *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 -}; - -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; -} - -/* - * 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; } - -/* 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) - -/* - * 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, f |