diff options
Diffstat (limited to 'sound/oss/awe_wave.c')
| -rw-r--r-- | sound/oss/awe_wave.c | 6147 |
1 files changed, 6147 insertions, 0 deletions
diff --git a/sound/oss/awe_wave.c b/sound/oss/awe_wave.c new file mode 100644 index 000000000000..d2b9beda8ace --- /dev/null +++ b/sound/oss/awe_wave.c @@ -0,0 +1,6147 @@ +/* + * 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. + */ + +/* + * Changelog: + * Aug 18, 2003, Adam Belay <ambx1@neo.rr.com> + * - detection code rewrite + */ + +#include <linux/awe_voice.h> +#include <linux/config.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, 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=%d\n", offset)); + } + offset = (offset * ap->scaleTuning) / 100; + DEBUG(4,printk("AWE32: p-> scale* ofs=%d\n", offset)); + offset += ap->tune * 4096 / 1200; + DEBUG(4,printk("AWE32: p-> tune+ ofs=%d\n", offset)); + if (cp->bender != 0) { + DEBUG(3,printk("AWE32: p-> bend(%d) %d\n", 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=%d\n", 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, void __user *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; + if (copy_to_user(arg, &awe_info, sizeof(awe_info))) + return -EFAULT; + 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; + break; + + default: + printk(KERN_WARNING "AWE32: unsupported ioctl %d\n", cmd); + return -EINVAL; + break; + } +} + + +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 = %d\n", 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 samples\n")); + 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 %d\n", 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 = %d\n", p1)); + playing_mode = p1; + awe_reset(0); + break; + + case _AWE_DRUM_CHANNELS: + DEBUG(0,printk("AWE32: drum flags = %x\n", p1)); + drum_flags = *(unsigned int*)&event[4]; + break; + + case _AWE_MISC_MODE: + DEBUG(0,printk("AWE32: ctrl parms = %d %d\n", 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=%d\n", 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 %d\n", 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 __user *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%x\n", format); + return -EINVAL; + } + + if (count < AWE_PATCH_INFO_SIZE) { + printk(KERN_WARNING "AWE32 Error: Patch header too short\n"); + 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 %d\n", + 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 __user *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 list\n"); + 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)) { + printk(KERN_ERR "AWE32: failed to alloc new list\n"); + return NULL; + } + patch_opened = TRUE; + return sftail; + } + return sftail; +} + +/* close the patch; if no voice is loaded, remove the patch */ +static int +awe_close_patch(awe_patch_info *patch, const char __user *addr, int count) +{ + if (patch_opened && sftail) { + /* if no voice is loaded, release the current patch */ + if (sftail->infos == NULL) { + awe_reset(0); + awe_remove_samples(current_sf_id - 1); + } + } + patch_opened = 0; + return 0; +} + + +/* remove the latest patch */ +static int +awe_unload_patch(awe_patch_info *patch, const char __user *addr, int count) +{ + if (current_sf_id > 0 && current_sf_id > locked_sf_id) { + awe_reset(0); + awe_remove_samples(current_sf_id - 1); + } + return 0; +} + +/* allocate voice info list records */ +static awe_voice_list * +alloc_new_info(void) +{ + awe_voice_list *newlist; + + newlist = (awe_voice_list *)kmalloc(sizeof(*newlist), GFP_KERNEL); + if (newlist == NULL) { + printk(KERN_ERR "AWE32: can't alloc info table\n"); + return NULL; + } + return newlist; +} + +/* allocate sample info list records */ +static awe_sample_list * +alloc_new_sample(void) +{ + awe_sample_list *newlist; + + newlist = (awe_sample_list *)kmalloc(sizeof(*newlist), GFP_KERNEL); + if (newlist == NULL) { + printk(KERN_ERR "AWE32: can't alloc sample table\n"); + return NULL; + } + return newlist; +} + +/* load voice map */ +static int +awe_load_map(awe_patch_info *patch, const char __user *addr, int count) +{ + awe_voice_map map; + awe_voice_list *rec, *p; + sf_list *sf; + + /* get the link info */ + if (count < sizeof(map)) { + printk(KERN_WARNING "AWE32 Error: invalid patch info length\n"); + return -EINVAL; + } + if (copy_from_user(&map, addr + AWE_PATCH_INFO_SIZE, sizeof(map))) + return -EFAULT; + + /* check if the identical mapping already exists */ + p = awe_search_instr(map.map_bank, map.map_instr, map.map_key); + for (; p; p = p->next_instr) { + if (p->type == V_ST_MAPPED && + p->v.start == map.src_instr && + p->v.end == map.src_bank && + p->v.fixkey == map.src_key) + return 0; /* already present! */ + } + + if ((sf = check_patch_opened(AWE_PAT_TYPE_MAP, NULL)) == NULL) + return -ENOMEM; + + if ((rec = alloc_new_info()) == NULL) + return -ENOMEM; + + rec->bank = map.map_bank; + rec->instr = map.map_instr; + rec->type = V_ST_MAPPED; + rec->disabled = FALSE; + awe_init_voice_info(&rec->v); + if (map.map_key >= 0) { + rec->v.low = map.map_key; + rec->v.high = map.map_key; + } + rec->v.start = map.src_instr; + rec->v.end = map.src_bank; + rec->v.fixkey = map.src_key; + add_sf_info(sf, rec); + add_info_list(rec); + + return 0; +} + +#if 0 +/* probe preset in the current list -- nothing to be loaded */ +static int +awe_probe_info(awe_patch_info *patch, const char __user *addr, int count) +{ +#ifdef AWE_ALLOW_SAMPLE_SHARING + awe_voice_map map; + awe_voice_list *p; + + if (! patch_opened) + return -EINVAL; + + /* get the link info */ + if (count < sizeof(map)) { + printk(KERN_WARNING "AWE32 Error: invalid patch info length\n"); + return -EINVAL; + } + if (copy_from_user(&map, addr + AWE_PATCH_INFO_SIZE, sizeof(map))) + return -EFAULT; + + /* check if the identical mapping already exists */ + if (sftail == NULL) + return -EINVAL; + p = awe_search_instr(map.src_bank, map.src_instr, map.src_key); + for (; p; p = p->next_instr) { + if (p->type == V_ST_NORMAL && + is_identical_holder(p->holder, sftail) && + p->v.low <= map.src_key && + p->v.high >= map.src_key) + return 0; /* already present! */ + } +#endif /* allow sharing */ + return -EINVAL; +} +#endif + +/* probe sample in the current list -- nothing to be loaded */ +static int +awe_probe_data(awe_patch_info *patch, const char __user *addr, int count) +{ +#ifdef AWE_ALLOW_SAMPLE_SHARING + if (! patch_opened) + return -EINVAL; + + /* search the specified sample by optarg */ + if (search_sample_index(sftail, patch->optarg) != NULL) + return 0; +#endif /* allow sharing */ + return -EINVAL; +} + + +/* remove the present instrument layers */ +static int +remove_info(sf_list *sf, int bank, int instr) +{ + awe_voice_list *prev, *next, *p; + int removed = 0; + + prev = NULL; + for (p = sf->infos; p; p = next) { + next = p->next; + if (p->type == V_ST_NORMAL && + p->bank == bank && p->instr == instr) { + /* remove this layer */ + if (prev) + prev->next = next; + else + sf->infos = next; + if (p == sf->last_infos) + sf->last_infos = prev; + sf->num_info--; + removed++; + kfree(p); + } else + prev = p; + } + if (removed) + rebuild_preset_list(); + return removed; +} + +/* load voice information data */ +static int +awe_load_info(awe_patch_info *patch, const char __user *addr, int count) +{ + int offset; + awe_voice_rec_hdr hdr; + int i; + int total_size; + sf_list *sf; + awe_voice_list *rec; + + if (count < AWE_VOICE_REC_SIZE) { + printk(KERN_WARNING "AWE32 Error: invalid patch info length\n"); + return -EINVAL; + } + + offset = AWE_PATCH_INFO_SIZE; + if (copy_from_user((char*)&hdr, addr + offset, AWE_VOICE_REC_SIZE)) + return -EFAULT; + offset += AWE_VOICE_REC_SIZE; + + if (hdr.nvoices <= 0 || hdr.nvoices >= 100) { + printk(KERN_WARNING "AWE32 Error: Invalid voice number %d\n", hdr.nvoices); + return -EINVAL; + } + total_size = AWE_VOICE_REC_SIZE + AWE_VOICE_INFO_SIZE * hdr.nvoices; + if (count < total_size) { + printk(KERN_WARNING "AWE32 Error: patch length(%d) is smaller than nvoices(%d)\n", + count, hdr.nvoices); + return -EINVAL; + } + + if ((sf = check_patch_opened(AWE_PAT_TYPE_MISC, NULL)) == NULL) + return -ENOMEM; + + switch (hdr.write_mode) { + case AWE_WR_EXCLUSIVE: + /* exclusive mode - if the instrument already exists, + return error */ + for (rec = sf->infos; rec; rec = rec->next) { + if (rec->type == V_ST_NORMAL && + rec->bank == hdr.bank && + rec->instr == hdr.instr) + return -EINVAL; + } + break; + case AWE_WR_REPLACE: + /* replace mode - remove the instrument if it already exists */ + remove_info(sf, hdr.bank, hdr.instr); + break; + } + + /* append new layers */ + for (i = 0; i < hdr.nvoices; i++) { + rec = alloc_new_info(); + if (rec == NULL) + return -ENOMEM; + + rec->bank = hdr.bank; + rec->instr = hdr.instr; + rec->type = V_ST_NORMAL; + rec->disabled = FALSE; + + /* copy awe_voice_info parameters */ + if (copy_from_user(&rec->v, addr + offset, AWE_VOICE_INFO_SIZE)) { + kfree(rec); + return -EFAULT; + } + offset += AWE_VOICE_INFO_SIZE; +#ifdef AWE_ALLOW_SAMPLE_SHARING + if (sf && sf->shared) { + if (info_duplicated(sf, rec)) { + kfree(rec); + continue; + } + } +#endif /* allow sharing */ + if (rec->v.mode & AWE_MODE_INIT_PARM) + awe_init_voice_parm(&rec->v.parm); + add_sf_info(sf, rec); + awe_set_sample(rec); + add_info_list(rec); + } + + return 0; +} + + +/* remove instrument layers */ +static int +awe_remove_info(awe_patch_info *patch, const char __user *addr, int count) +{ + unsigned char bank, instr; + sf_list *sf; + + if (! patch_opened || (sf = sftail) == NULL) { + printk(KERN_WARNING "AWE32: remove_info: patch not opened\n"); + return -EINVAL; + } + + bank = ((unsigned short)patch->optarg >> 8) & 0xff; + instr = (unsigned short)patch->optarg & 0xff; + if (! remove_info(sf, bank, instr)) + return -EINVAL; + return 0; +} + + +/* load wave sample data */ +static int +awe_load_data(awe_patch_info *patch, const char __user *addr, int count) +{ + int offset, size; + int rc; + awe_sample_info tmprec; + awe_sample_list *rec; + sf_list *sf; + + if ((sf = check_patch_opened(AWE_PAT_TYPE_MISC, NULL)) == NULL) + return -ENOMEM; + + size = (count - AWE_SAMPLE_INFO_SIZE) / 2; + offset = AWE_PATCH_INFO_SIZE; + if (copy_from_user(&tmprec, addr + offset, AWE_SAMPLE_INFO_SIZE)) + return -EFAULT; + offset += AWE_SAMPLE_INFO_SIZE; + if (size != tmprec.size) { + printk(KERN_WARNING "AWE32: load: sample size differed (%d != %d)\n", + tmprec.size, size); + return -EINVAL; + } + + if (search_sample_index(sf, tmprec.sample) != NULL) { +#ifdef AWE_ALLOW_SAMPLE_SHARING + /* if shared sample, skip this data */ + if (sf->type & AWE_PAT_SHARED) + return 0; +#endif /* allow sharing */ + DEBUG(1,printk("AWE32: sample data %d already present\n", tmprec.sample)); + return -EINVAL; + } + + if ((rec = alloc_new_sample()) == NULL) + return -ENOMEM; + + memcpy(&rec->v, &tmprec, sizeof(tmprec)); + + if (rec->v.size > 0) { + if ((rc = awe_write_wave_data(addr, offset, rec, -1)) < 0) { + kfree(rec); + return rc; + } + sf->mem_ptr += rc; + } + + add_sf_sample(sf, rec); + return 0; +} + + +/* replace wave sample data */ +static int +awe_replace_data(awe_patch_info *patch, const char __user *addr, int count) +{ + int offset; + int size; + int rc; + int channels; + awe_sample_info cursmp; + int save_mem_ptr; + sf_list *sf; + awe_sample_list *rec; + + if (! patch_opened || (sf = sftail) == NULL) { + printk(KERN_WARNING "AWE32: replace: patch not opened\n"); + return -EINVAL; + } + + size = (count - AWE_SAMPLE_INFO_SIZE) / 2; + offset = AWE_PATCH_INFO_SIZE; + if (copy_from_user(&cursmp, addr + offset, AWE_SAMPLE_INFO_SIZE)) + return -EFAULT; + offset += AWE_SAMPLE_INFO_SIZE; + if (cursmp.size == 0 || size != cursmp.size) { + printk(KERN_WARNING "AWE32: replace: invalid sample size (%d!=%d)\n", + cursmp.size, size); + return -EINVAL; + } + channels = patch->optarg; + if (channels <= 0 || channels > AWE_NORMAL_VOICES) { + printk(KERN_WARNING "AWE32: replace: invalid channels %d\n", channels); + return -EINVAL; + } + + for (rec = sf->samples; rec; rec = rec->next) { + if (rec->v.sample == cursmp.sample) + break; + } + if (rec == NULL) { + printk(KERN_WARNING "AWE32: replace: cannot find existing sample data %d\n", + cursmp.sample); + return -EINVAL; + } + + if (rec->v.size != cursmp.size) { + printk(KERN_WARNING "AWE32: replace: exiting size differed (%d!=%d)\n", + rec->v.size, cursmp.size); + return -EINVAL; + } + + save_mem_ptr = awe_free_mem_ptr(); + sftail->mem_ptr = rec->v.start - awe_mem_start; + memcpy(&rec->v, &cursmp, sizeof(cursmp)); + rec->v.sf_id = current_sf_id; + if ((rc = awe_write_wave_data(addr, offset, rec, channels)) < 0) + return rc; + sftail->mem_ptr = save_mem_ptr; + + return 0; +} + + +/*----------------------------------------------------------------*/ + +static const char __user *readbuf_addr; +static int readbuf_offs; +static int readbuf_flags; + +/* initialize read buffer */ +static int +readbuf_init(const char __user *addr, int offset, awe_sample_info *sp) +{ + readbuf_addr = addr; + readbuf_offs = offset; + readbuf_flags = sp->mode_flags; + return 0; +} + +/* read directly from user buffer */ +static unsigned short +readbuf_word(int pos) +{ + unsigned short c; + /* read from user buffer */ + if (readbuf_flags & AWE_SAMPLE_8BITS) { + unsigned char cc; + get_user(cc, (unsigned char __user *)(readbuf_addr + readbuf_offs + pos)); + c = (unsigned short)cc << 8; /* convert 8bit -> 16bit */ + } else { + get_user(c, (unsigned short __user *)(readbuf_addr + readbuf_offs + pos * 2)); + } + if (readbuf_flags & AWE_SAMPLE_UNSIGNED) + c ^= 0x8000; /* unsigned -> signed */ + return c; +} + +#define readbuf_word_cache readbuf_word +#define readbuf_end() /**/ + +/*----------------------------------------------------------------*/ + +#define BLANK_LOOP_START 8 +#define BLANK_LOOP_END 40 +#define BLANK_LOOP_SIZE 48 + +/* loading onto memory - return the actual written size */ +static int +awe_write_wave_data(const char __user *addr, int offset, awe_sample_list *list, int channels) +{ + int i, truesize, dram_offset; + awe_sample_info *sp = &list->v; + int rc; + + /* be sure loop points start < end */ + if (sp->loopstart > sp->loopend) { + int tmp = sp->loopstart; + sp->loopstart = sp->loopend; + sp->loopend = tmp; + } + + /* compute true data size to be loaded */ + truesize = sp->size; + if (sp->mode_flags & (AWE_SAMPLE_BIDIR_LOOP|AWE_SAMPLE_REVERSE_LOOP)) + truesize += sp->loopend - sp->loopstart; + if (sp->mode_flags & AWE_SAMPLE_NO_BLANK) + truesize += BLANK_LOOP_SIZE; + if (awe_free_mem_ptr() + truesize >= memsize/2) { + DEBUG(-1,printk("AWE32 Error: Sample memory full\n")); + return -ENOSPC; + } + + /* recalculate address offset */ + sp->end -= sp->start; + sp->loopstart -= sp->start; + sp->loopend -= sp->start; + + dram_offset = awe_free_mem_ptr() + awe_mem_start; + sp->start = dram_offset; + sp->end += dram_offset; + sp->loopstart += dram_offset; + sp->loopend += dram_offset; + + /* set the total size (store onto obsolete checksum value) */ + if (sp->size == 0) + sp->checksum = 0; + else + sp->checksum = truesize; + + if ((rc = awe_open_dram_for_write(dram_offset, channels)) != 0) + return rc; + + if (readbuf_init(addr, offset, sp) < 0) + return -ENOSPC; + + for (i = 0; i < sp->size; i++) { + unsigned short c; + c = readbuf_word(i); + awe_write_dram(c); + if (i == sp->loopend && + (sp->mode_flags & (AWE_SAMPLE_BIDIR_LOOP|AWE_SAMPLE_REVERSE_LOOP))) { + int looplen = sp->loopend - sp->loopstart; + /* copy reverse loop */ + int k; + for (k = 1; k <= looplen; k++) { + c = readbuf_word_cache(i - k); + awe_write_dram(c); + } + if (sp->mode_flags & AWE_SAMPLE_BIDIR_LOOP) { + sp->end += looplen; + } else { + sp->start += looplen; + sp->end += looplen; + } + } + } + readbuf_end(); + + /* if no blank loop is attached in the sample, add it */ + if (sp->mode_flags & AWE_SAMPLE_NO_BLANK) { + for (i = 0; i < BLANK_LOOP_SIZE; i++) + awe_write_dram(0); + if (sp->mode_flags & AWE_SAMPLE_SINGLESHOT) { + sp->loopstart = sp->end + BLANK_LOOP_START; + sp->loopend = sp->end + BLANK_LOOP_END; + } + } + + awe_close_dram(); + + /* initialize FM */ + awe_init_fm(); + + return truesize; +} + + +/*----------------------------------------------------------------*/ + +#ifdef AWE_HAS_GUS_COMPATIBILITY + +/* calculate GUS envelope time: + * is this correct? i have no idea.. + */ +static int +calc_gus_envelope_time(int rate, int start, int end) +{ + int r, p, t; + r = (3 - ((rate >> 6) & 3)) * 3; + p = rate & 0x3f; + t = end - start; + if (t < 0) t = -t; + if (13 > r) + t = t << (13 - r); + else + t = t >> (r - 13); + return (t * 10) / (p * 441); +} + +#define calc_gus_sustain(val) (0x7f - vol_table[(val)/2]) +#define calc_gus_attenuation(val) vol_table[(val)/2] + +/* load GUS patch */ +static int +awe_load_guspatch(const char __user *addr, int offs, int size, int pmgr_flag) +{ + struct patch_info patch; + awe_voice_info *rec; + awe_sample_info *smp; + awe_voice_list *vrec; + awe_sample_list *smprec; + int sizeof_patch; + int note, rc; + sf_list *sf; + + sizeof_patch = (int)((long)&patch.data[0] - (long)&patch); /* header size */ + if (size < sizeof_patch) { + printk(KERN_WARNING "AWE32 Error: Patch header too short\n"); + return -EINVAL; + } + if (copy_from_user(((char*)&patch) + offs, addr + offs, sizeof_patch - offs)) + return -EFAULT; + size -= sizeof_patch; + if (size < patch.len) { + printk(KERN_WARNING "AWE32 Error: Patch record too short (%d<%d)\n", + size, patch.len); + return -EINVAL; + } + if ((sf = check_patch_opened(AWE_PAT_TYPE_GUS, NULL)) == NULL) + return -ENOMEM; + if ((smprec = alloc_new_sample()) == NULL) + return -ENOMEM; + if ((vrec = alloc_new_info()) == NULL) { + kfree(smprec); + return -ENOMEM; + } + + smp = &smprec->v; + smp->sample = sf->num_sample; + smp->start = 0; + smp->end = patch.len; + smp->loopstart = patch.loop_start; + smp->loopend = patch.loop_end; + smp->size = patch.len; + + /* set up mode flags */ + smp->mode_flags = 0; + if (!(patch.mode & WAVE_16_BITS)) + smp->mode_flags |= AWE_SAMPLE_8BITS; + if (patch.mode & WAVE_UNSIGNED) + smp->mode_flags |= AWE_SAMPLE_UNSIGNED; + smp->mode_flags |= AWE_SAMPLE_NO_BLANK; + if (!(patch.mode & (WAVE_LOOPING|WAVE_BIDIR_LOOP|WAVE_LOOP_BACK))) + smp->mode_flags |= AWE_SAMPLE_SINGLESHOT; + if (patch.mode & WAVE_BIDIR_LOOP) + smp->mode_flags |= AWE_SAMPLE_BIDIR_LOOP; + if (patch.mode & WAVE_LOOP_BACK) + smp->mode_flags |= AWE_SAMPLE_REVERSE_LOOP; + + DEBUG(0,printk("AWE32: [sample %d mode %x]\n", patch.instr_no, smp->mode_flags)); + if (patch.mode & WAVE_16_BITS) { + /* convert to word offsets */ + smp->size /= 2; + smp->end /= 2; + smp->loopstart /= 2; + smp->loopend /= 2; + } + smp->checksum_flag = 0; + smp->checksum = 0; + + if ((rc = awe_write_wave_data(addr, sizeof_patch, smprec, -1)) < 0) + return rc; + sf->mem_ptr += rc; + add_sf_sample(sf, smprec); + + /* set up voice info */ + rec = &vrec->v; + awe_init_voice_info(rec); + rec->sample = sf->num_info; /* the last sample */ + rec->rate_offset = calc_rate_offset(patch.base_freq); + note = freq_to_note(patch.base_note); + rec->root = note / 100; + rec->tune = -(note % 100); + rec->low = freq_to_note(patch.low_note) / 100; + rec->high = freq_to_note(patch.high_note) / 100; + DEBUG(1,printk("AWE32: [gus base offset=%d, note=%d, range=%d-%d(%d-%d)]\n", + rec->rate_offset, note, + rec->low, rec->high, + patch.low_note, patch.high_note)); + /* panning position; -128 - 127 => 0-127 */ + rec->pan = (patch.panning + 128) / 2; + + /* detuning is ignored */ + /* 6points volume envelope */ + if (patch.mode & WAVE_ENVELOPES) { + int attack, hold, decay, release; + attack = calc_gus_envelope_time + (patch.env_rate[0], 0, patch.env_offset[0]); + hold = calc_gus_envelope_time + (patch.env_rate[1], patch.env_offset[0], + patch.env_offset[1]); + decay = calc_gus_envelope_time + (patch.env_rate[2], patch.env_offset[1], + patch.env_offset[2]); + release = calc_gus_envelope_time + (patch.env_rate[3], patch.env_offset[1], + patch.env_offset[4]); + release += calc_gus_envelope_time + (patch.env_rate[4], patch.env_offset[3], + patch.env_offset[4]); + release += calc_gus_envelope_time + (patch.env_rate[5], patch.env_offset[4], + patch.env_offset[5]); + rec->parm.volatkhld = (calc_parm_hold(hold) << 8) | + calc_parm_attack(attack); + rec->parm.voldcysus = (calc_gus_sustain(patch.env_offset[2]) << 8) | + calc_parm_decay(decay); + rec->parm.volrelease = 0x8000 | calc_parm_decay(release); + DEBUG(2,printk("AWE32: [gusenv atk=%d, hld=%d, dcy=%d, rel=%d]\n", attack, hold, decay, release)); + rec->attenuation = calc_gus_attenuation(patch.env_offset[0]); + } + + /* tremolo effect */ + if (patch.mode & WAVE_TREMOLO) { + int rate = (patch.tremolo_rate * 1000 / 38) / 42; + rec->parm.tremfrq = ((patch.tremolo_depth / 2) << 8) | rate; + DEBUG(2,printk("AWE32: [gusenv tremolo rate=%d, dep=%d, tremfrq=%x]\n", + patch.tremolo_rate, patch.tremolo_depth, + rec->parm.tremfrq)); + } + /* vibrato effect */ + if (patch.mode & WAVE_VIBRATO) { + int rate = (patch.vibrato_rate * 1000 / 38) / 42; + rec->parm.fm2frq2 = ((patch.vibrato_depth / 6) << 8) | rate; + DEBUG(2,printk("AWE32: [gusenv vibrato rate=%d, dep=%d, tremfrq=%x]\n", + patch.tremolo_rate, patch.tremolo_depth, + rec->parm.tremfrq)); + } + + /* scale_freq, scale_factor, volume, and fractions not implemented */ + + /* append to the tail of the list */ + vrec->bank = ctrls[AWE_MD_GUS_BANK]; + vrec->instr = patch.instr_no; + vrec->disabled = FALSE; + vrec->type = V_ST_NORMAL; + + add_sf_info(sf, vrec); + add_info_list(vrec); + + /* set the voice index */ + awe_set_sample(vrec); + + return 0; +} + +#endif /* AWE_HAS_GUS_COMPATIBILITY */ + +/* + * sample and voice list handlers + */ + +/* append this to the current sf list */ +static void add_sf_info(sf_list *sf, awe_voice_list *rec) +{ + if (sf == NULL) + return; + rec->holder = sf; + rec->v.sf_id = sf->sf_id; + if (sf->last_infos) + sf->last_infos->next = rec; + else + sf->infos = rec; + sf->last_infos = rec; + rec->next = NULL; + sf->num_info++; +} + +/* prepend this sample to sf list */ +static void add_sf_sample(sf_list *sf, awe_sample_list *rec) +{ + if (sf == NULL) + return; + rec->holder = sf; + rec->v.sf_id = sf->sf_id; + if (sf->last_samples) + sf->last_samples->next = rec; + else + sf->samples = rec; + sf->last_samples = rec; + rec->next = NULL; + sf->num_sample++; +} + +/* purge the old records which don't belong with the same file id */ +static void purge_old_list(awe_voice_list *rec, awe_voice_list *next) +{ + rec->next_instr = next; + if (rec->bank == AWE_DRUM_BANK) { + /* remove samples with the same note range */ + awe_voice_list *cur, *prev = rec; + int low = rec->v.low; + int high = rec->v.high; + for (cur = next; cur; cur = cur->next_instr) { + if (cur->v.low == low && + cur->v.high == high && + ! is_identical_holder(cur->holder, rec->holder)) + prev->next_instr = cur->next_instr; + else + prev = cur; + } + } else { + if (! is_identical_holder(next->holder, rec->holder)) + /* remove all samples */ + rec->next_instr = NULL; + } +} + +/* prepend to top of the preset table */ +static void add_info_list(awe_voice_list *rec) +{ + awe_voice_list *prev, *cur; + int key; + + if (rec->disabled) + return; + + key = awe_search_key(rec->bank, rec->instr, rec->v.low); + prev = NULL; + for (cur = preset_table[key]; cur; cur = cur->next_bank) { + /* search the first record with the same bank number */ + if (cur->instr == rec->instr && cur->bank == rec->bank) { + /* replace the list with the new record */ + rec->next_bank = cur->next_bank; + if (prev) + prev->next_bank = rec; + else + preset_table[key] = rec; + purge_old_list(rec, cur); + return; + } + prev = cur; + } + + /* this is the first bank record.. just add this */ + rec->next_instr = NULL; + rec->next_bank = preset_table[key]; + preset_table[key] = rec; +} + +/* remove samples later than the specified sf_id */ +static void +awe_remove_samples(int sf_id) +{ + sf_list *p, *prev; + + if (sf_id <= 0) { + awe_reset_samples(); + return; + } + /* already removed? */ + if (current_sf_id <= sf_id) + return; + + for (p = sftail; p; p = prev) { + if (p->sf_id <= sf_id) + break; + prev = p->prev; + awe_free_sf(p); + } + sftail = p; + if (sftail) { + sf_id = sftail->sf_id; + sftail->next = NULL; + } else { + sf_id = 0; + sfhead = NULL; + } + current_sf_id = sf_id; + if (locked_sf_id > sf_id) + locked_sf_id = sf_id; + + rebuild_preset_list(); +} + +/* rebuild preset search list */ +static void rebuild_preset_list(void) +{ + sf_list *p; + awe_voice_list *rec; + + memset(preset_table, 0, sizeof(preset_table)); + + for (p = sfhead; p; p = p->next) { + for (rec = p->infos; rec; rec = rec->next) + add_info_list(rec); + } +} + +/* compare the given sf_id pair */ +static int is_identical_holder(sf_list *sf1, sf_list *sf2) +{ + if (sf1 == NULL || sf2 == NULL) + return FALSE; + if (sf1 == sf2) + return TRUE; +#ifdef AWE_ALLOW_SAMPLE_SHARING + { + /* compare with the sharing id */ + sf_list *p; + int counter = 0; + if (sf1->sf_id < sf2->sf_id) { /* make sure id1 > id2 */ + sf_list *tmp; tmp = sf1; sf1 = sf2; sf2 = tmp; + } + for (p = sf1->shared; p; p = p->shared) { + if (counter++ > current_sf_id) + break; /* strange sharing loop.. quit */ + if (p == sf2) + return TRUE; + } + } +#endif /* allow sharing */ + return FALSE; +} + +/* search the sample index matching with the given sample id */ +static awe_sample_list * +search_sample_index(sf_list *sf, int sample) +{ + awe_sample_list *p; +#ifdef AWE_ALLOW_SAMPLE_SHARING + int counter = 0; + while (sf) { + for (p = sf->samples; p; p = p->next) { + if (p->v.sample == sample) + return p; + } + sf = sf->shared; + if (counter++ > current_sf_id) + break; /* strange sharing loop.. quit */ + } +#else + if (sf) { + for (p = sf->samples; p; p = p->next) { + if (p->v.sample == sample) + return p; + } + } +#endif + return NULL; +} + +/* search the specified sample */ +/* non-zero = found */ +static short +awe_set_sample(awe_voice_list *rec) +{ + awe_sample_list *smp; + awe_voice_info *vp = &rec->v; + + vp->index = 0; + if ((smp = search_sample_index(rec->holder, vp->sample)) == NULL) + return 0; + + /* set the actual sample offsets */ + vp->start += smp->v.start; + vp->end += smp->v.end; + vp->loopstart += smp->v.loopstart; + vp->loopend += smp->v.loopend; + /* copy mode flags */ + vp->mode = smp->v.mode_flags; + /* set flag */ + vp->index = 1; + + return 1; +} + + +/* + * voice allocation + */ + +/* look for all voices associated with the specified note & velocity */ +static int +awe_search_multi_voices(awe_voice_list *rec, int note, int velocity, + awe_voice_info **vlist) +{ + int nvoices; + + nvoices = 0; + for (; rec; rec = rec->next_instr) { + if (note >= rec->v.low && + note <= rec->v.high && + velocity >= rec->v.vellow && + velocity <= rec->v.velhigh) { + if (rec->type == V_ST_MAPPED) { + /* mapper */ + vlist[0] = &rec->v; + return -1; + } + vlist[nvoices++] = &rec->v; + if (nvoices >= AWE_MAX_VOICES) + break; + } + } + return nvoices; +} + +/* store the voice list from the specified note and velocity. + if the preset is mapped, seek for the destination preset, and rewrite + the note number if necessary. + */ +static int +really_alloc_voices(int bank, int instr, int *note, int velocity, awe_voice_info **vlist) +{ + int nvoices; + awe_voice_list *vrec; + int level = 0; + + for (;;) { + vrec = awe_search_instr(bank, instr, *note); + nvoices = awe_search_multi_voices(vrec, *note, velocity, vlist); + if (nvoices == 0) { + if (bank == AWE_DRUM_BANK) + /* search default drumset */ + vrec = awe_search_instr(bank, ctrls[AWE_MD_DEF_DRUM], *note); + else + /* search default preset */ + vrec = awe_search_instr(ctrls[AWE_MD_DEF_BANK], instr, *note); + nvoices = awe_search_multi_voices(vrec, *note, velocity, vlist); + } + if (nvoices == 0) { + if (bank == AWE_DRUM_BANK && ctrls[AWE_MD_DEF_DRUM] != 0) + /* search default drumset */ + vrec = awe_search_instr(bank, 0, *note); + else if (bank != AWE_DRUM_BANK && ctrls[AWE_MD_DEF_BANK] != 0) + /* search default preset */ + vrec = awe_search_instr(0, instr, *note); + nvoices = awe_search_multi_voices(vrec, *note, velocity, vlist); + } + if (nvoices < 0) { /* mapping */ + int key = vlist[0]->fixkey; + instr = vlist[0]->start; + bank = vlist[0]->end; + if (level++ > 5) { + printk(KERN_ERR "AWE32: too deep mapping level\n"); + return 0; + } + if (key >= 0) + *note = key; + } else + break; + } + + return nvoices; +} + +/* allocate voices corresponding note and velocity; supports multiple insts. */ +static void +awe_alloc_multi_voices(int ch, int note, int velocity, int key) +{ + int i, v, nvoices, bank; + awe_voice_info *vlist[AWE_MAX_VOICES]; + + if (MULTI_LAYER_MODE() && IS_DRUM_CHANNEL(ch)) + bank = AWE_DRUM_BANK; /* always search drumset */ + else + bank = channels[ch].bank; + + /* check the possible voices; note may be changeable if mapped */ + nvoices = really_alloc_voices(bank, channels[ch].instr, + ¬e, velocity, vlist); + + /* set the voices */ + current_alloc_time++; + for (i = 0; i < nvoices; i++) { + v = awe_clear_voice(); + voices[v].key = key; + voices[v].ch = ch; + voices[v].note = note; + voices[v].velocity = velocity; + voices[v].time = current_alloc_time; + voices[v].cinfo = &channels[ch]; + voices[v].sample = vlist[i]; + voices[v].state = AWE_ST_MARK; + voices[v].layer = nvoices - i - 1; /* in reverse order */ + } + + /* clear the mark in allocated voices */ + for (i = 0; i < awe_max_voices; i++) { + if (voices[i].state == AWE_ST_MARK) + voices[i].state = AWE_ST_OFF; + + } +} + + +/* search an empty voice. + if no empty voice is found, at least terminate a voice + */ +static int +awe_clear_voice(void) +{ + enum { + OFF=0, RELEASED, SUSTAINED, PLAYING, END + }; + struct voice_candidate_t { + int best; + int time; + int vtarget; + } candidate[END]; + int i, type, vtarget; + + vtarget = 0xffff; + for (type = OFF; type < END; type++) { + candidate[type].best = -1; + candidate[type].time = current_alloc_time + 1; + candidate[type].vtarget = vtarget; + } + + for (i = 0; i < awe_max_voices; i++) { + if (voices[i].state & AWE_ST_OFF) + type = OFF; + else if (voices[i].state & AWE_ST_RELEASED) + type = RELEASED; + else if (voices[i].state & AWE_ST_SUSTAINED) + type = SUSTAINED; + else if (voices[i].state & ~AWE_ST_MARK) + type = PLAYING; + else + continue; +#ifdef AWE_CHECK_VTARGET + /* get current volume */ + vtarget = (awe_peek_dw(AWE_VTFT(i)) >> 16) & 0xffff; +#endif + if (candidate[type].best < 0 || + vtarget < candidate[type].vtarget || + (vtarget == candidate[type].vtarget && + voices[i].time < candidate[type].time)) { + candidate[type].best = i; + candidate[type].time = voices[i].time; + candidate[type].vtarget = vtarget; + } + } + + for (type = OFF; type < END; type++) { + if ((i = candidate[type].best) >= 0) { + if (voices[i].state != AWE_ST_OFF) + awe_terminate(i); + awe_voice_init(i, TRUE); + return i; + } + } + return 0; +} + + +/* search sample for the specified note & velocity and set it on the voice; + * note that voice is the voice index (not channel index) + */ +static void +awe_alloc_one_voice(int voice, int note, int velocity) +{ + int ch, nvoices, bank; + awe_voice_info *vlist[AWE_MAX_VOICES]; + + ch = voices[voice].ch; + if (MULTI_LAYER_MODE() && IS_DRUM_CHANNEL(voice)) + bank = AWE_DRUM_BANK; /* always search drumset */ + else + bank = voices[voice].cinfo->bank; + + nvoices = really_alloc_voices(bank, voices[voice].cinfo->instr, + ¬e, velocity, vlist); + if (nvoices > 0) { + voices[voice].time = ++current_alloc_time; + voices[voice].sample = vlist[0]; /* use the first one */ + voices[voice].layer = 0; + voices[voice].note = note; + voices[voice].velocity = velocity; + } +} + + +/* + * sequencer2 functions + */ + +/* search an empty voice; used by sequencer2 */ +static int +awe_alloc(int dev, int chn, int note, struct voice_alloc_info *alloc) +{ + playing_mode = AWE_PLAY_MULTI2; + awe_info.nr_voices = AWE_MAX_CHANNELS; + return awe_clear_voice(); +} + + +/* set up voice; used by sequencer2 */ +static void +awe_setup_voice(int dev, int voice, int chn) +{ + struct channel_info *info; + if (synth_devs[dev] == NULL || + (info = &synth_devs[dev]->chn_info[chn]) == NULL) + return; + + if (voice < 0 || voice >= awe_max_voices) + return; + + DEBUG(2,printk("AWE32: [setup(%d) ch=%d]\n", voice, chn)); + channels[chn].expression_vol = info->controllers[CTL_EXPRESSION]; + channels[chn].main_vol = info->controllers[CTL_MAIN_VOLUME]; + channels[chn].panning = + info->controllers[CTL_PAN] * 2 - 128; /* signed 8bit */ + channels[chn].bender = info->bender_value; /* zero center */ + channels[chn].bank = info->controllers[CTL_BANK_SELECT]; + channels[chn].sustained = info->controllers[CTL_SUSTAIN]; + if (info->controllers[CTL_EXT_EFF_DEPTH]) { + FX_SET(&channels[chn].fx, AWE_FX_REVERB, + info->controllers[CTL_EXT_EFF_DEPTH] * 2); + } + if (info->controllers[CTL_CHORUS_DEPTH]) { + FX_SET(&channels[chn].fx, AWE_FX_CHORUS, + info->controllers[CTL_CHORUS_DEPTH] * 2); + } + awe_set_instr(dev, chn, info->pgm_num); +} + + +#ifdef CONFIG_AWE32_MIXER +/* + * AWE32 mixer device control + */ + +static int awe_mixer_ioctl(int dev, unsigned int cmd, void __user *arg); + +static int my_mixerdev = -1; + +static struct mixer_operations awe_mixer_operations = { + .owner = THIS_MODULE, + .id = "AWE", + .name = "AWE32 Equalizer", + .ioctl = awe_mixer_ioctl, +}; + +static void __init attach_mixer(void) +{ + if ((my_mixerdev = sound_alloc_mixerdev()) >= 0) { + mixer_devs[my_mixerdev] = &awe_mixer_operations; + } +} + +static void unload_mixer(void) +{ + if (my_mixerdev >= 0) + sound_unload_mixerdev(my_mixerdev); +} + +static int +awe_mixer_ioctl(int dev, unsigned int cmd, void __user * arg) +{ + int i, level, value; + + if (((cmd >> 8) & 0xff) != 'M') + return -EINVAL; + + if (get_user(level, (int __user *)arg)) + return -EFAULT; + level = ((level & 0xff) + (level >> 8)) / 2; + DEBUG(0,printk("AWEMix: cmd=%x val=%d\n", cmd & 0xff, level)); + + if (_SIOC_DIR(cmd) & _SIOC_WRITE) { + switch (cmd & 0xff) { + case SOUND_MIXER_BASS: + value = level * 12 / 100; + if (value >= 12) + value = 11; + ctrls[AWE_MD_BASS_LEVEL] = value; + awe_update_equalizer(); + break; + case SOUND_MIXER_TREBLE: + value = level * 12 / 100; + if (value >= 12) + value = 11; + ctrls[AWE_MD_TREBLE_LEVEL] = value; + awe_update_equalizer(); + break; + case SOUND_MIXER_VOLUME: + level = level * 127 / 100; + if (level >= 128) level = 127; + atten_relative = FALSE; + atten_offset = vol_table[level]; + awe_update_volume(); + break; + } + } + switch (cmd & 0xff) { + case SOUND_MIXER_BASS: + level = ctrls[AWE_MD_BASS_LEVEL] * 100 / 24; + level = (level << 8) | level; + break; + case SOUND_MIXER_TREBLE: + level = ctrls[AWE_MD_TREBLE_LEVEL] * 100 / 24; + level = (level << 8) | level; + break; + case SOUND_MIXER_VOLUME: + value = atten_offset; + if (atten_relative) + value += ctrls[AWE_MD_ZERO_ATTEN]; + for (i = 127; i > 0; i--) { + if (value <= vol_table[i]) + break; + } + level = i * 100 / 127; + level = (level << 8) | level; + break; + case SOUND_MIXER_DEVMASK: + level = SOUND_MASK_BASS|SOUND_MASK_TREBLE|SOUND_MASK_VOLUME; + break; + default: + level = 0; + break; + } + if (put_user(level, (int __user *)arg)) + return -EFAULT; + return level; +} +#endif /* CONFIG_AWE32_MIXER */ + + +/* + * initialization of Emu8000 + */ + +/* intiailize audio channels */ +static void +awe_init_audio(void) +{ + int ch; + + /* turn off envelope engines */ + for (ch = 0; ch < AWE_MAX_VOICES; ch++) { + awe_poke(AWE_DCYSUSV(ch), 0x80); + } + + /* reset all other parameters to zero */ + for (ch = 0; ch < AWE_MAX_VOICES; ch++) { + awe_poke(AWE_ENVVOL(ch), 0); + awe_poke(AWE_ENVVAL(ch), 0); + awe_poke(AWE_DCYSUS(ch), 0); + awe_poke(AWE_ATKHLDV(ch), 0); + awe_poke(AWE_LFO1VAL(ch), 0); + awe_poke(AWE_ATKHLD(ch), 0); + awe_poke(AWE_LFO2VAL(ch), 0); + awe_poke(AWE_IP(ch), 0); + awe_poke(AWE_IFATN(ch), 0); + awe_poke(AWE_PEFE(ch), 0); + awe_poke(AWE_FMMOD(ch), 0); + awe_poke(AWE_TREMFRQ(ch), 0); + awe_poke(AWE_FM2FRQ2(ch), 0); + awe_poke_dw(AWE_PTRX(ch), 0); + awe_poke_dw(AWE_VTFT(ch), 0); + awe_poke_dw(AWE_PSST(ch), 0); + awe_poke_dw(AWE_CSL(ch), 0); + awe_poke_dw(AWE_CCCA(ch), 0); + } + + for (ch = 0; ch < AWE_MAX_VOICES; ch++) { + awe_poke_dw(AWE_CPF(ch), 0); + awe_poke_dw(AWE_CVCF(ch), 0); + } +} + + +/* initialize DMA address */ +static void +awe_init_dma(void) +{ + awe_poke_dw(AWE_SMALR, 0); + awe_poke_dw(AWE_SMARR, 0); + awe_poke_dw(AWE_SMALW, 0); + awe_poke_dw(AWE_SMARW, 0); +} + + +/* initialization arrays; from ADIP */ + +static unsigned short init1[128] = { + 0x03ff, 0x0030, 0x07ff, 0x0130, 0x0bff, 0x0230, 0x0fff, 0x0330, + 0x13ff, 0x0430, 0x17ff, 0x0530, 0x1bff, 0x0630, 0x1fff, 0x0730, + 0x23ff, 0x0830, 0x27ff, 0x0930, 0x2bff, 0x0a30, 0x2fff, 0x0b30, + 0x33ff, 0x0c30, 0x37ff, 0x0d30, 0x3bff, 0x0e30, 0x3fff, 0x0f30, + + 0x43ff, 0x0030, 0x47ff, 0x0130, 0x4bff, 0x0230, 0x4fff, 0x0330, + 0x53ff, 0x0430, 0x57ff, 0x0530, 0x5bff, 0x0630, 0x5fff, 0x0730, + 0x63ff, 0x0830, 0x67ff, 0x0930, 0x6bff, 0x0a30, 0x6fff, 0x0b30, + 0x73ff, 0x0c30, 0x77ff, 0x0d30, 0x7bff, 0x0e30, 0x7fff, 0x0f30, + + 0x83ff, 0x0030, 0x87ff, 0x0130, 0x8bff, 0x0230, 0x8fff, 0x0330, + 0x93ff, 0x0430, 0x97ff, 0x0530, 0x9bff, 0x0630, 0x9fff, 0x0730, + 0xa3ff, 0x0830, 0xa7ff, 0x0930, 0xabff, 0x0a30, 0xafff, 0x0b30, + 0xb3ff, 0x0c30, 0xb7ff, 0x0d30, 0xbbff, 0x0e30, 0xbfff, 0x0f30, + + 0xc3ff, 0x0030, 0xc7ff, 0x0130, 0xcbff, 0x0230, 0xcfff, 0x0330, + 0xd3ff, 0x0430, 0xd7ff, 0x0530, 0xdbff, 0x0630, 0xdfff, 0x0730, + 0xe3ff, 0x0830, 0xe7ff, 0x0930, 0xebff, 0x0a30, 0xefff, 0x0b30, + 0xf3ff, 0x0c30, 0xf7ff, 0x0d30, 0xfbff, 0x0e30, 0xffff, 0x0f30, +}; + +static unsigned short init2[128] = { + 0x03ff, 0x8030, 0x07ff, 0x8130, 0x0bff, 0x8230, 0x0fff, 0x8330, + 0x13ff, 0x8430, 0x17ff, 0x8530, 0x1bff, 0x8630, 0x1fff, 0x8730, + 0x23ff, 0x8830, 0x27ff, 0x8930, 0x2bff, 0x8a30, 0x2fff, 0x8b30, + 0x33ff, 0x8c30, 0x37ff, 0x8d30, 0x3bff, 0x8e30, 0x3fff, 0x8f30, + + 0x43ff, 0x8030, 0x47ff, 0x8130, 0x4bff, 0x8230, 0x4fff, 0x8330, + 0x53ff, 0x8430, 0x57ff, 0x8530, 0x5bff, 0x8630, 0x5fff, 0x8730, + 0x63ff, 0x8830, 0x67ff, 0x8930, 0x6bff, 0x8a30, 0x6fff, 0x8b30, + 0x73ff, 0x8c30, 0x77ff, 0x8d30, 0x7bff, 0x8e30, 0x7fff, 0x8f30, + + 0x83ff, 0x8030, 0x87ff, 0x8130, 0x8bff, 0x8230, 0x8fff, 0x8330, + 0x93ff, 0x8430, 0x97ff, 0x8530, 0x9bff, 0x8630, 0x9fff, 0x8730, + 0xa3ff, 0x8830, 0xa7ff, 0x8930, 0xabff, 0x8a30, 0xafff, 0x8b30, + 0xb3ff, 0x8c30, 0xb7ff, 0x8d30, 0xbbff, 0x8e30, 0xbfff, 0x8f30, + + 0xc3ff, 0x8030, 0xc7ff, 0x8130, 0xcbff, 0x8230, 0xcfff, 0x8330, + 0xd3ff, 0x8430, 0xd7ff, 0x8530, 0xdbff, 0x8630, 0xdfff, 0x8730, + 0xe3ff, 0x8830, 0xe7ff, 0x8930, 0xebff, 0x8a30, 0xefff, 0x8b30, + 0xf3ff, 0x8c30, 0xf7ff, 0x8d30, 0xfbff, 0x8e30, 0xffff, 0x8f30, +}; + +static unsigned short init3[128] = { + 0x0C10, 0x8470, 0x14FE, 0xB488, 0x167F, 0xA470, 0x18E7, 0x84B5, + 0x1B6E, 0x842A, 0x1F1D, 0x852A, 0x0DA3, 0x8F7C, 0x167E, 0xF254, + 0x0000, 0x842A, 0x0001, 0x852A, 0x18E6, 0x8BAA, 0x1B6D, 0xF234, + 0x229F, 0x8429, 0x2746, 0x8529, 0x1F1C, 0x86E7, 0x229E, 0xF224, + + 0x0DA4, 0x8429, 0x2C29, 0x8529, 0x2745, 0x87F6, 0x2C28, 0xF254, + 0x383B, 0x8428, 0x320F, 0x8528, 0x320E, 0x8F02, 0x1341, 0xF264, + 0x3EB6, 0x8428, 0x3EB9, 0x8528, 0x383A, 0x8FA9, 0x3EB5, 0xF294, + 0x3EB7, 0x8474, 0x3EBA, 0x8575, 0x3EB8, 0xC4C3, 0x3EBB, 0xC5C3, + + 0x0000, 0xA404, 0x0001, 0xA504, 0x141F, 0x8671, 0x14FD, 0x8287, + 0x3EBC, 0xE610, 0x3EC8, 0x8C7B, 0x031A, 0x87E6, 0x3EC8, 0x86F7, + 0x3EC0, 0x821E, 0x3EBE, 0xD208, 0x3EBD, 0x821F, 0x3ECA, 0x8386, + 0x3EC1, 0x8C03, 0x3EC9, 0x831E, 0x3ECA, 0x8C4C, 0x3EBF, 0x8C55, + + 0x3EC9, 0xC208, 0x3EC4, 0xBC84, 0x3EC8, 0x8EAD, 0x3EC8, 0xD308, + 0x3EC2, 0x8F7E, 0x3ECB, 0x8219, 0x3ECB, 0xD26E, 0x3EC5, 0x831F, + 0x3EC6, 0xC308, 0x3EC3, 0xB2FF, 0x3EC9, 0x8265, 0x3EC9, 0x8319, + 0x1342, 0xD36E, 0x3EC7, 0xB3FF, 0x0000, 0x8365, 0x1420, 0x9570, +}; + +static unsigned short init4[128] = { + 0x0C10, 0x8470, 0x14FE, 0xB488, 0x167F, 0xA470, 0x18E7, 0x84B5, + 0x1B6E, 0x842A, 0x1F1D, 0x852A, 0x0DA3, 0x0F7C, 0x167E, 0x7254, + 0x0000, 0x842A, 0x0001, 0x852A, 0x18E6, 0x0BAA, 0x1B6D, 0x7234, + 0x229F, 0x8429, 0x2746, 0x8529, 0x1F1C, 0x06E7, 0x229E, 0x7224, + + 0x0DA4, 0x8429, 0x2C29, 0x8529, 0x2745, 0x07F6, 0x2C28, 0x7254, + 0x383B, 0x8428, 0x320F, 0x8528, 0x320E, 0x0F02, 0x1341, 0x7264, + 0x3EB6, 0x8428, 0x3EB9, 0x8528, 0x383A, 0x0FA9, 0x3EB5, 0x7294, + 0x3EB7, 0x8474, 0x3EBA, 0x8575, 0x3EB8, 0x44C3, 0x3EBB, 0x45C3, + + 0x0000, 0xA404, 0x0001, 0xA504, 0x141F, 0x0671, 0x14FD, 0x0287, + 0x3EBC, 0xE610, 0x3EC8, 0x0C7B, 0x031A, 0x07E6, 0x3EC8, 0x86F7, + 0x3EC0, 0x821E, 0x3EBE, 0xD208, 0x3EBD, 0x021F, 0x3ECA, 0x0386, + 0x3EC1, 0x0C03, 0x3EC9, 0x031E, 0x3ECA, 0x8C4C, 0x3EBF, 0x0C55, + + 0x3EC9, 0xC208, 0x3EC4, 0xBC84, 0x3EC8, 0x0EAD, 0x3EC8, 0xD308, + 0x3EC2, 0x8F7E, 0x3ECB, 0x0219, 0x3ECB, 0xD26E, 0x3EC5, 0x031F, + 0x3EC6, 0xC308, 0x3EC3, 0x32FF, 0x3EC9, 0x0265, 0x3EC9, 0x8319, + 0x1342, 0xD36E, 0x3EC7, 0x33FF, 0x0000, 0x8365, 0x1420, 0x9570, +}; + + +/* send initialization arrays to start up */ +static void +awe_init_array(void) +{ + awe_send_array(init1); + awe_wait(1024); + awe_send_array(init2); + awe_send_array(init3); + awe_poke_dw(AWE_HWCF4, 0); + awe_poke_dw(AWE_HWCF5, 0x83); + awe_poke_dw(AWE_HWCF6, 0x8000); + awe_send_array(init4); +} + +/* send an initialization array */ +static void +awe_send_array(unsigned short *data) +{ + int i; + unsigned short *p; + + p = data; + for (i = 0; i < AWE_MAX_VOICES; i++, p++) + awe_poke(AWE_INIT1(i), *p); + for (i = 0; i < AWE_MAX_VOICES; i++, p++) + awe_poke(AWE_INIT2(i), *p); + for (i = 0; i < AWE_MAX_VOICES; i++, p++) + awe_poke(AWE_INIT3(i), *p); + for (i = 0; i < AWE_MAX_VOICES; i++, p++) + awe_poke(AWE_INIT4(i), *p); +} + + +/* + * set up awe32 channels to some known state. + */ + +/* set the envelope & LFO parameters to the default values; see ADIP */ +static void +awe_tweak_voice(int i) +{ + /* set all mod/vol envelope shape to minimum */ + awe_poke(AWE_ENVVOL(i), 0x8000); + awe_poke(AWE_ENVVAL(i), 0x8000); + awe_poke(AWE_DCYSUS(i), 0x7F7F); + awe_poke(AWE_ATKHLDV(i), 0x7F7F); + awe_poke(AWE_ATKHLD(i), 0x7F7F); + awe_poke(AWE_PEFE(i), 0); /* mod envelope height to zero */ + awe_poke(AWE_LFO1VAL(i), 0x8000); /* no delay for LFO1 */ + awe_poke(AWE_LFO2VAL(i), 0x8000); + awe_poke(AWE_IP(i), 0xE000); /* no pitch shift */ + awe_poke(AWE_IFATN(i), 0xFF00); /* volume to minimum */ + awe_poke(AWE_FMMOD(i), 0); + awe_poke(AWE_TREMFRQ(i), 0); + awe_poke(AWE_FM2FRQ2(i), 0); +} + +static void +awe_tweak(void) +{ + int i; + /* reset all channels */ + for (i = 0; i < awe_max_voices; i++) + awe_tweak_voice(i); +} + + +/* + * initializes the FM section of AWE32; + * see Vince Vu's unofficial AWE32 programming guide + */ + +static void +awe_init_fm(void) +{ +#ifndef AWE_ALWAYS_INIT_FM + /* if no extended memory is on board.. */ + if (memsize <= 0) + return; +#endif + DEBUG(3,printk("AWE32: initializing FM\n")); + + /* Initialize the last two channels for DRAM refresh and producing + the reverb and chorus effects for Yamaha OPL-3 synthesizer */ + + /* 31: FM left channel, 0xffffe0-0xffffe8 */ + awe_poke(AWE_DCYSUSV(30), 0x80); + awe_poke_dw(AWE_PSST(30), 0xFFFFFFE0); /* full left */ + awe_poke_dw(AWE_CSL(30), 0x00FFFFE8 | + (DEF_FM_CHORUS_DEPTH << 24)); + awe_poke_dw(AWE_PTRX(30), (DEF_FM_REVERB_DEPTH << 8)); + awe_poke_dw(AWE_CPF(30), 0); + awe_poke_dw(AWE_CCCA(30), 0x00FFFFE3); + + /* 32: FM right channel, 0xfffff0-0xfffff8 */ + awe_poke(AWE_DCYSUSV(31), 0x80); + awe_poke_dw(AWE_PSST(31), 0x00FFFFF0); /* full right */ + awe_poke_dw(AWE_CSL(31), 0x00FFFFF8 | + (DEF_FM_CHORUS_DEPTH << 24)); + awe_poke_dw(AWE_PTRX(31), (DEF_FM_REVERB_DEPTH << 8)); + awe_poke_dw(AWE_CPF(31), 0x8000); + awe_poke_dw(AWE_CCCA(31), 0x00FFFFF3); + + /* skew volume & cutoff */ + awe_poke_dw(AWE_VTFT(30), 0x8000FFFF); + awe_poke_dw(AWE_VTFT(31), 0x8000FFFF); + + voices[30].state = AWE_ST_FM; + voices[31].state = AWE_ST_FM; + + /* change maximum channels to 30 */ + awe_max_voices = AWE_NORMAL_VOICES; + if (playing_mode == AWE_PLAY_DIRECT) + awe_info.nr_voices = awe_max_voices; + else + awe_info.nr_voices = AWE_MAX_CHANNELS; + voice_alloc->max_voice = awe_max_voices; +} + +/* + * AWE32 DRAM access routines + */ + +/* open DRAM write accessing mode */ +static int +awe_open_dram_for_write(int offset, int channels) +{ + int vidx[AWE_NORMAL_VOICES]; + int i; + + if (channels < 0 || channels >= AWE_NORMAL_VOICES) { + channels = AWE_NORMAL_VOICES; + for (i = 0; i < AWE_NORMAL_VOICES; i++) + vidx[i] = i; + } else { + for (i = 0; i < channels; i++) { + vidx[i] = awe_clear_voice(); + voices[vidx[i]].state = AWE_ST_MARK; + } + } + + /* use all channels for DMA transfer */ + for (i = 0; i < channels; i++) { + if (vidx[i] < 0) continue; + awe_poke(AWE_DCYSUSV(vidx[i]), 0x80); + awe_poke_dw(AWE_VTFT(vidx[i]), 0); + awe_poke_dw(AWE_CVCF(vidx[i]), 0); + awe_poke_dw(AWE_PTRX(vidx[i]), 0x40000000); + awe_poke_dw(AWE_CPF(vidx[i]), 0x40000000); + awe_poke_dw(AWE_PSST(vidx[i]), 0); + awe_poke_dw(AWE_CSL(vidx[i]), 0); + awe_poke_dw(AWE_CCCA(vidx[i]), 0x06000000); + voices[vidx[i]].state = AWE_ST_DRAM; + } + /* point channels 31 & 32 to ROM samples for DRAM refresh */ + awe_poke_dw(AWE_VTFT(30), 0); + awe_poke_dw(AWE_PSST(30), 0x1d8); + awe_poke_dw(AWE_CSL(30), 0x1e0); + awe_poke_dw(AWE_CCCA(30), 0x1d8); + awe_poke_dw(AWE_VTFT(31), 0); + awe_poke_dw(AWE_PSST(31), 0x1d8); + awe_poke_dw(AWE_CSL(31), 0x1e0); + awe_poke_dw(AWE_CCCA(31), 0x1d8); + voices[30].state = AWE_ST_FM; + voices[31].state = AWE_ST_FM; + + /* if full bit is on, not ready to write on */ + if (awe_peek_dw(AWE_SMALW) & 0x80000000) { + for (i = 0; i < channels; i++) { + awe_poke_dw(AWE_CCCA(vidx[i]), 0); + voices[vidx[i]].state = AWE_ST_OFF; + } + printk("awe: not ready to write..\n"); + return -EPERM; + } + + /* set address to write */ + awe_poke_dw(AWE_SMALW, offset); + + return 0; +} + +/* open DRAM for RAM size detection */ +static void +awe_open_dram_for_check(void) +{ + int i; + for (i = 0; i < AWE_NORMAL_VOICES; i++) { + awe_poke(AWE_DCYSUSV(i), 0x80); + awe_poke_dw(AWE_VTFT(i), 0); + awe_poke_dw(AWE_CVCF(i), 0); + awe_poke_dw(AWE_PTRX(i), 0x40000000); + awe_poke_dw(AWE_CPF(i), 0x40000000); + awe_poke_dw(AWE_PSST(i), 0); + awe_poke_dw(AWE_CSL(i), 0); + if (i & 1) /* DMA write */ + awe_poke_dw(AWE_CCCA(i), 0x06000000); + else /* DMA read */ + awe_poke_dw(AWE_CCCA(i), 0x04000000); + voices[i].state = AWE_ST_DRAM; + } +} + + +/* close dram access */ +static void +awe_close_dram(void) +{ + int i; + /* wait until FULL bit in SMAxW register be false */ + for (i = 0; i < 10000; i++) { + if (!(awe_peek_dw(AWE_SMALW) & 0x80000000)) + break; + awe_wait(10); + } + + for (i = 0; i < AWE_NORMAL_VOICES; i++) { + if (voices[i].state == AWE_ST_DRAM) { + awe_poke_dw(AWE_CCCA(i), 0); + awe_poke(AWE_DCYSUSV(i), 0x807F); + voices[i].state = AWE_ST_OFF; + } + } +} + + +/* + * check dram size on AWE board + */ + +/* any three numbers you like */ +#define UNIQUE_ID1 0x1234 +#define UNIQUE_ID2 0x4321 +#define UNIQUE_ID3 0xABCD + +static void __init +awe_check_dram(void) +{ + if (awe_present) /* already initialized */ + return; + + if (memsize >= 0) { /* given by config file or module option */ + memsize *= 1024; /* convert to Kbytes */ + return; + } + + awe_open_dram_for_check(); + + memsize = 0; + + /* set up unique two id numbers */ + awe_poke_dw(AWE_SMALW, AWE_DRAM_OFFSET); + awe_poke(AWE_SMLD, UNIQUE_ID1); + awe_poke(AWE_SMLD, UNIQUE_ID2); + + while (memsize < AWE_MAX_DRAM_SIZE) { + awe_wait(5); + /* read a data on the DRAM start address */ + awe_poke_dw(AWE_SMALR, AWE_DRAM_OFFSET); + awe_peek(AWE_SMLD); /* discard stale data */ + if (awe_peek(AWE_SMLD) != UNIQUE_ID1) + break; + if (awe_peek(AWE_SMLD) != UNIQUE_ID2) + break; + memsize += 512; /* increment 512kbytes */ + /* Write a unique data on the test address; + * if the address is out of range, the data is written on + * 0x200000(=AWE_DRAM_OFFSET). Then the two id words are + * broken by this data. + */ + awe_poke_dw(AWE_SMALW, AWE_DRAM_OFFSET + memsize*512L); + awe_poke(AWE_SMLD, UNIQUE_ID3); + awe_wait(5); + /* read a data on the just written DRAM address */ + awe_poke_dw(AWE_SMALR, AWE_DRAM_OFFSET + memsize*512L); + awe_peek(AWE_SMLD); /* discard stale data */ + if (awe_peek(AWE_SMLD) != UNIQUE_ID3) + break; + } + awe_close_dram(); + + DEBUG(0,printk("AWE32: %d Kbytes memory detected\n", memsize)); + + /* convert to Kbytes */ + memsize *= 1024; +} + + +/*----------------------------------------------------------------*/ + +/* + * chorus and reverb controls; from VV's guide + */ + +/* 5 parameters for each chorus mode; 3 x 16bit, 2 x 32bit */ +static char chorus_defined[AWE_CHORUS_NUMBERS]; +static awe_chorus_fx_rec chorus_parm[AWE_CHORUS_NUMBERS] = { + {0xE600, 0x03F6, 0xBC2C ,0x00000000, 0x0000006D}, /* chorus 1 */ + {0xE608, 0x031A, 0xBC6E, 0x00000000, 0x0000017C}, /* chorus 2 */ + {0xE610, 0x031A, 0xBC84, 0x00000000, 0x00000083}, /* chorus 3 */ + {0xE620, 0x0269, 0xBC6E, 0x00000000, 0x0000017C}, /* chorus 4 */ + {0xE680, 0x04D3, 0xBCA6, 0x00000000, 0x0000005B}, /* feedback */ + {0xE6E0, 0x044E, 0xBC37, 0x00000000, 0x00000026}, /* flanger */ + {0xE600, 0x0B06, 0xBC00, 0x0000E000, 0x00000083}, /* short delay */ + {0xE6C0, 0x0B06, 0xBC00, 0x0000E000, 0x00000083}, /* short delay + feedback */ +}; + +static int +awe_load_chorus_fx(awe_patch_info *patch, const char __user *addr, int count) +{ + if (patch->optarg < AWE_CHORUS_PREDEFINED || patch->optarg >= AWE_CHORUS_NUMBERS) { + printk(KERN_WARNING "AWE32 Error: invalid chorus mode %d for uploading\n", patch->optarg); + return -EINVAL; + } + if (count < sizeof(awe_chorus_fx_rec)) { + printk(KERN_WARNING "AWE32 Error: too short chorus fx parameters\n"); + return -EINVAL; + } + if (copy_from_user(&chorus_parm[patch->optarg], addr + AWE_PATCH_INFO_SIZE, + sizeof(awe_chorus_fx_rec))) + return -EFAULT; + chorus_defined[patch->optarg] = TRUE; + return 0; +} + +static void +awe_set_chorus_mode(int effect) +{ + if (effect < 0 || effect >= AWE_CHORUS_NUMBERS || + (effect >= AWE_CHORUS_PREDEFINED && !chorus_defined[effect])) + return; + awe_poke(AWE_INIT3(9), chorus_parm[effect].feedback); + awe_poke(AWE_INIT3(12), chorus_parm[effect].delay_offset); + awe_poke(AWE_INIT4(3), chorus_parm[effect].lfo_depth); + awe_poke_dw(AWE_HWCF4, chorus_parm[effect].delay); + awe_poke_dw(AWE_HWCF5, chorus_parm[effect].lfo_freq); + awe_poke_dw(AWE_HWCF6, 0x8000); + awe_poke_dw(AWE_HWCF7, 0x0000); +} + +static void +awe_update_chorus_mode(void) +{ + awe_set_chorus_mode(ctrls[AWE_MD_CHORUS_MODE]); +} + +/*----------------------------------------------------------------*/ + +/* reverb mode settings; write the following 28 data of 16 bit length + * on the corresponding ports in the reverb_cmds array + */ +static char reverb_defined[AWE_CHORUS_NUMBERS]; +static awe_reverb_fx_rec reverb_parm[AWE_REVERB_NUMBERS] = { +{{ /* room 1 */ + 0xB488, 0xA450, 0x9550, 0x84B5, 0x383A, 0x3EB5, 0x72F4, + 0x72A4, 0x7254, 0x7204, 0x7204, 0x7204, 0x4416, 0x4516, + 0xA490, 0xA590, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429, + 0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528, +}}, +{{ /* room 2 */ + 0xB488, 0xA458, 0x9558, 0x84B5, 0x383A, 0x3EB5, 0x7284, + 0x7254, 0x7224, 0x7224, 0x7254, 0x7284, 0x4448, 0x4548, + 0xA440, 0xA540, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429, + 0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528, +}}, +{{ /* room 3 */ + 0xB488, 0xA460, 0x9560, 0x84B5, 0x383A, 0x3EB5, 0x7284, + 0x7254, 0x7224, 0x7224, 0x7254, 0x7284, 0x4416, 0x4516, + 0xA490, 0xA590, 0x842C, 0x852C, 0x842C, 0x852C, 0x842B, + 0x852B, 0x842B, 0x852B, 0x842A, 0x852A, 0x842A, 0x852A, +}}, +{{ /* hall 1 */ + 0xB488, 0xA470, 0x9570, 0x84B5, 0x383A, 0x3EB5, 0x7284, + 0x7254, 0x7224, 0x7224, 0x7254, 0x7284, 0x4448, 0x4548, + 0xA440, 0xA540, 0x842B, 0x852B, 0x842B, 0x852B, 0x842A, + 0x852A, 0x842A, 0x852A, 0x8429, 0x8529, 0x8429, 0x8529, +}}, +{{ /* hall 2 */ + 0xB488, 0xA470, 0x9570, 0x84B5, 0x383A, 0x3EB5, 0x7254, + 0x7234, 0x7224, 0x7254, 0x7264, 0x7294, 0x44C3, 0x45C3, + 0xA404, 0xA504, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429, + 0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528, +}}, +{{ /* plate */ + 0xB4FF, 0xA470, 0x9570, 0x84B5, 0x383A, 0x3EB5, 0x7234, + 0x7234, 0x7234, 0x7234, 0x7234, 0x7234, 0x4448, 0x4548, + 0xA440, 0xA540, 0x842A, 0x852A, 0x842A, 0x852A, 0x8429, + 0x8529, 0x8429, 0x8529, 0x8428, 0x8528, 0x8428, 0x8528, +}}, +{{ /* delay */ + 0xB4FF, 0xA470, 0x9500, 0x84B5, 0x333A, 0x39B5, 0x7204, + 0x7204, 0x7204, 0x7204, 0x7204, 0x72F4, 0x4400, 0x4500, + 0xA4FF, 0xA5FF, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420, + 0x8520, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420, 0x8520, +}}, +{{ /* panning delay */ + 0xB4FF, 0xA490, 0x9590, 0x8474, 0x333A, 0x39B5, 0x7204, + 0x7204, 0x7204, 0x7204, 0x7204, 0x72F4, 0x4400, 0x4500, + 0xA4FF, 0xA5FF, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420, + 0x8520, 0x8420, 0x8520, 0x8420, 0x8520, 0x8420, 0x8520, +}}, +}; + +static struct ReverbCmdPair { + unsigned short cmd, port; +} reverb_cmds[28] = { + {AWE_INIT1(0x03)}, {AWE_INIT1(0x05)}, {AWE_INIT4(0x1F)}, {AWE_INIT1(0x07)}, + {AWE_INIT2(0x14)}, {AWE_INIT2(0x16)}, {AWE_INIT1(0x0F)}, {AWE_INIT1(0x17)}, + {AWE_INIT1(0x1F)}, {AWE_INIT2(0x07)}, {AWE_INIT2(0x0F)}, {AWE_INIT2(0x17)}, + {AWE_INIT2(0x1D)}, {AWE_INIT2(0x1F)}, {AWE_INIT3(0x01)}, {AWE_INIT3(0x03)}, + {AWE_INIT1(0x09)}, {AWE_INIT1(0x0B)}, {AWE_INIT1(0x11)}, {AWE_INIT1(0x13)}, + {AWE_INIT1(0x19)}, {AWE_INIT1(0x1B)}, {AWE_INIT2(0x01)}, {AWE_INIT2(0x03)}, + {AWE_INIT2(0x09)}, {AWE_INIT2(0x0B)}, {AWE_INIT2(0x11)}, {AWE_INIT2(0x13)}, +}; + +static int +awe_load_reverb_fx(awe_patch_info *patch, const char __user *addr, int count) +{ + if (patch->optarg < AWE_REVERB_PREDEFINED || patch->optarg >= AWE_REVERB_NUMBERS) { + printk(KERN_WARNING "AWE32 Error: invalid reverb mode %d for uploading\n", patch->optarg); + return -EINVAL; + } + if (count < sizeof(awe_reverb_fx_rec)) { + printk(KERN_WARNING "AWE32 Error: too short reverb fx parameters\n"); + return -EINVAL; + } + if (copy_from_user(&reverb_parm[patch->optarg], addr + AWE_PATCH_INFO_SIZE, + sizeof(awe_reverb_fx_rec))) + return -EFAULT; + reverb_defined[patch->optarg] = TRUE; + return 0; +} + +static void +awe_set_reverb_mode(int effect) +{ + int i; + if (effect < 0 || effect >= AWE_REVERB_NUMBERS || + (effect >= AWE_REVERB_PREDEFINED && !reverb_defined[effect])) + return; + for (i = 0; i < 28; i++) + awe_poke(reverb_cmds[i].cmd, reverb_cmds[i].port, + reverb_parm[effect].parms[i]); +} + +static void +awe_update_reverb_mode(void) +{ + awe_set_reverb_mode(ctrls[AWE_MD_REVERB_MODE]); +} + +/* + * treble/bass equalizer control + */ + +static unsigned short bass_parm[12][3] = { + {0xD26A, 0xD36A, 0x0000}, /* -12 dB */ + {0xD25B, 0xD35B, 0x0000}, /* -8 */ + {0xD24C, 0xD34C, 0x0000}, /* -6 */ + {0xD23D, 0xD33D, 0x0000}, /* -4 */ + {0xD21F, 0xD31F, 0x0000}, /* -2 */ + {0xC208, 0xC308, 0x0001}, /* 0 (HW default) */ + {0xC219, 0xC319, 0x0001}, /* +2 */ + {0xC22A, 0xC32A, 0x0001}, /* +4 */ + {0xC24C, 0xC34C, 0x0001}, /* +6 */ + {0xC26E, 0xC36E, 0x0001}, /* +8 */ + {0xC248, 0xC348, 0x0002}, /* +10 */ + {0xC26A, 0xC36A, 0x0002}, /* +12 dB */ +}; + +static unsigned short treble_parm[12][9] = { + {0x821E, 0xC26A, 0x031E, 0xC36A, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001}, /* -12 dB */ + {0x821E, 0xC25B, 0x031E, 0xC35B, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001}, + {0x821E, 0xC24C, 0x031E, 0xC34C, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001}, + {0x821E, 0xC23D, 0x031E, 0xC33D, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001}, + {0x821E, 0xC21F, 0x031E, 0xC31F, 0x021E, 0xD208, 0x831E, 0xD308, 0x0001}, + {0x821E, 0xD208, 0x031E, 0xD308, 0x021E, 0xD208, 0x831E, 0xD308, 0x0002}, + {0x821E, 0xD208, 0x031E, 0xD308, 0x021D, 0xD219, 0x831D, 0xD319, 0x0002}, + {0x821E, 0xD208, 0x031E, 0xD308, 0x021C, 0xD22A, 0x831C, 0xD32A, 0x0002}, + {0x821E, 0xD208, 0x031E, 0xD308, 0x021A, 0xD24C, 0x831A, 0xD34C, 0x0002}, + {0x821E, 0xD208, 0x031E, 0xD308, 0x0219, 0xD26E, 0x8319, 0xD36E, 0x0002}, /* +8 (HW default) */ + {0x821D, 0xD219, 0x031D, 0xD319, 0x0219, 0xD26E, 0x8319, 0xD36E, 0x0002}, + {0x821C, 0xD22A, 0x031C, 0xD32A, 0x0219, 0xD26E, 0x8319, 0xD36E, 0x0002}, /* +12 dB */ +}; + + +/* + * set Emu8000 digital equalizer; from 0 to 11 [-12dB - 12dB] + */ +static void +awe_equalizer(int bass, int treble) +{ + unsigned short w; + + if (bass < 0 || bass > 11 || treble < 0 || treble > 11) + return; + awe_poke(AWE_INIT4(0x01), bass_parm[bass][0]); + awe_poke(AWE_INIT4(0x11), bass_parm[bass][1]); + awe_poke(AWE_INIT3(0x11), treble_parm[treble][0]); + awe_poke(AWE_INIT3(0x13), treble_parm[treble][1]); + awe_poke(AWE_INIT3(0x1B), treble_parm[treble][2]); + awe_poke(AWE_INIT4(0x07), treble_parm[treble][3]); + awe_poke(AWE_INIT4(0x0B), treble_parm[treble][4]); + awe_poke(AWE_INIT4(0x0D), treble_parm[treble][5]); + awe_poke(AWE_INIT4(0x17), treble_parm[treble][6]); + awe_poke(AWE_INIT4(0x19), treble_parm[treble][7]); + w = bass_parm[bass][2] + treble_parm[treble][8]; + awe_poke(AWE_INIT4(0x15), (unsigned short)(w + 0x0262)); + awe_poke(AWE_INIT4(0x1D), (unsigned short)(w + 0x8362)); +} + +static void awe_update_equalizer(void) +{ + awe_equalizer(ctrls[AWE_MD_BASS_LEVEL], ctrls[AWE_MD_TREBLE_LEVEL]); +} + + +/*----------------------------------------------------------------*/ + +#ifdef CONFIG_AWE32_MIDIEMU + +/* + * Emu8000 MIDI Emulation + */ + +/* + * midi queue record + */ + +/* queue type */ +enum { Q_NONE, Q_VARLEN, Q_READ, Q_SYSEX, }; + +#define MAX_MIDIBUF 64 + +/* midi status */ +typedef struct MidiStatus { + int queue; /* queue type */ + int qlen; /* queue length */ + int read; /* chars read */ + int status; /* current status */ + int chan; /* current channel */ + unsigned char buf[MAX_MIDIBUF]; +} MidiStatus; + +/* MIDI mode type */ +enum { MODE_GM, MODE_GS, MODE_XG, }; + +/* NRPN / CC -> Emu8000 parameter converter */ +typedef struct { + int control; + int awe_effect; + unsigned short (*convert)(int val); +} ConvTable; + + +/* + * prototypes + */ + +static int awe_midi_open(int dev, int mode, void (*input)(int,unsigned char), void (*output)(int)); +static void awe_midi_close(int dev); +static int awe_midi_ioctl(int dev, unsigned cmd, void __user * arg); +static int awe_midi_outputc(int dev, unsigned char midi_byte); + +static void init_midi_status(MidiStatus *st); +static void clear_rpn(void); +static void get_midi_char(MidiStatus *st, int c); +/*static void queue_varlen(MidiStatus *st, int c);*/ +static void special_event(MidiStatus *st, int c); +static void queue_read(MidiStatus *st, int c); +static void midi_note_on(MidiStatus *st); +static void midi_note_off(MidiStatus *st); +static void midi_key_pressure(MidiStatus *st); +static void midi_channel_pressure(MidiStatus *st); +static void midi_pitch_wheel(MidiStatus *st); +static void midi_program_change(MidiStatus *st); +static void midi_control_change(MidiStatus *st); +static void midi_select_bank(MidiStatus *st, int val); +static void midi_nrpn_event(MidiStatus *st); +static void midi_rpn_event(MidiStatus *st); +static void midi_detune(int chan, int coarse, int fine); +static void midi_system_exclusive(MidiStatus *st); +static int send_converted_effect(ConvTable *table, int num_tables, MidiStatus *st, int type, int val); +static int add_converted_effect(ConvTable *table, int num_tables, MidiStatus *st, int type, int val); +static int xg_control_change(MidiStatus *st, int cmd, int val); + +#define numberof(ary) (sizeof(ary)/sizeof(ary[0])) + + +/* + * OSS Midi device record + */ + +static struct midi_operations awe_midi_operations = +{ + .owner = THIS_MODULE, + .info = {"AWE Midi Emu", 0, 0, SNDCARD_SB}, + .in_info = {0}, + .open = awe_midi_open, /*open*/ + .close = awe_midi_close, /*close*/ + .ioctl = awe_midi_ioctl, /*ioctl*/ + .outputc = awe_midi_outputc, /*outputc*/ +}; + +static int my_mididev = -1; + +static void __init attach_midiemu(void) +{ + if ((my_mididev = sound_alloc_mididev()) < 0) + printk ("Sound: Too many midi devices detected\n"); + else + midi_devs[my_mididev] = &awe_midi_operations; +} + +static void unload_midiemu(void) +{ + if (my_mididev >= 0) + sound_unload_mididev(my_mididev); +} + + +/* + * open/close midi device + */ + +static int midi_opened = FALSE; + +static int midi_mode; +static int coarsetune, finetune; + +static int xg_mapping = TRUE; +static int xg_bankmode; + +/* effect sensitivity */ + +#define FX_CUTOFF 0 +#define FX_RESONANCE 1 +#define FX_ATTACK 2 +#define FX_RELEASE 3 +#define FX_VIBRATE 4 +#define FX_VIBDEPTH 5 +#define FX_VIBDELAY 6 +#define FX_NUMS 7 + +#define DEF_FX_CUTOFF 170 +#define DEF_FX_RESONANCE 6 +#define DEF_FX_ATTACK 50 +#define DEF_FX_RELEASE 50 +#define DEF_FX_VIBRATE 30 +#define DEF_FX_VIBDEPTH 4 +#define DEF_FX_VIBDELAY 1500 + +/* effect sense: */ +static int gs_sense[] = +{ + DEF_FX_CUTOFF, DEF_FX_RESONANCE, DEF_FX_ATTACK, DEF_FX_RELEASE, + DEF_FX_VIBRATE, DEF_FX_VIBDEPTH, DEF_FX_VIBDELAY +}; +static int xg_sense[] = +{ + DEF_FX_CUTOFF, DEF_FX_RESONANCE, DEF_FX_ATTACK, DEF_FX_RELEASE, + DEF_FX_VIBRATE, DEF_FX_VIBDEPTH, DEF_FX_VIBDELAY +}; + + +/* current status */ +static MidiStatus curst; + + +static int +awe_midi_open (int dev, int mode, + void (*input)(int,unsigned char), + void (*output)(int)) +{ + if (midi_opened) + return -EBUSY; + + midi_opened = TRUE; + + midi_mode = MODE_GM; + + curst.queue = Q_NONE; + curst.qlen = 0; + curst.read = 0; + curst.status = 0; + curst.chan = 0; + memset(curst.buf, 0, sizeof(curst.buf)); + + init_midi_status(&curst); + + return 0; +} + +static void +awe_midi_close (int dev) +{ + midi_opened = FALSE; +} + + +static int +awe_midi_ioctl (int dev, unsigned cmd, void __user *arg) +{ + return -EPERM; +} + +static int +awe_midi_outputc (int dev, unsigned char midi_byte) +{ + if (! midi_opened) + return 1; + + /* force to change playing mode */ + playing_mode = AWE_PLAY_MULTI; + + get_midi_char(&curst, midi_byte); + return 1; +} + + +/* + * initialize + */ + +static void init_midi_status(MidiStatus *st) +{ + clear_rpn(); + coarsetune = 0; + finetune = 0; +} + + +/* + * RPN & NRPN + */ + +#define MAX_MIDI_CHANNELS 16 + +/* RPN & NRPN */ +static unsigned char nrpn[MAX_MIDI_CHANNELS]; /* current event is NRPN? */ +static int msb_bit; /* current event is msb for RPN/NRPN */ +/* RPN & NRPN indeces */ +static unsigned char rpn_msb[MAX_MIDI_CHANNELS], rpn_lsb[MAX_MIDI_CHANNELS]; +/* RPN & NRPN values */ +static int rpn_val[MAX_MIDI_CHANNELS]; + +static void clear_rpn(void) +{ + int i; + for (i = 0; i < MAX_MIDI_CHANNELS; i++) { + nrpn[i] = 0; + rpn_msb[i] = 127; + rpn_lsb[i] = 127; + rpn_val[i] = 0; + } + msb_bit = 0; +} + + +/* + * process midi queue + */ + +/* status event types */ +typedef void (*StatusEvent)(MidiStatus *st); +static struct StatusEventList { + StatusEvent process; + int qlen; +} status_event[8] = { + {midi_note_off, 2}, + {midi_note_on, 2}, + {midi_key_pressure, 2}, + {midi_control_change, 2}, + {midi_program_change, 1}, + {midi_channel_pressure, 1}, + {midi_pitch_wheel, 2}, + {NULL, 0}, +}; + + +/* read a char from fifo and process it */ +static void get_midi_char(MidiStatus *st, int c) +{ + if (c == 0xfe) { + /* ignore active sense */ + st->queue = Q_NONE; + return; + } + + switch (st->queue) { + /* case Q_VARLEN: queue_varlen(st, c); break;*/ + case Q_READ: + case Q_SYSEX: + queue_read(st, c); + break; + case Q_NONE: + st->read = 0; + if ((c & 0xf0) == 0xf0) { + special_event(st, c); + } else if (c & 0x80) { /* status change */ + st->status = (c >> 4) & 0x07; + st->chan = c & 0x0f; + st->queue = Q_READ; + st->qlen = status_event[st->status].qlen; + if (st->qlen == 0) + st->queue = Q_NONE; + } + break; + } +} + +/* 0xfx events */ +static void special_event(MidiStatus *st, int c) +{ + switch (c) { + case 0xf0: /* system exclusive */ + st->queue = Q_SYSEX; + st->qlen = 0; + break; + case 0xf1: /* MTC quarter frame */ + case 0xf3: /* song select */ + st->queue = Q_READ; + st->qlen = 1; + break; + case 0xf2: /* song position */ + st->queue = Q_READ; + st->qlen = 2; + break; + } +} + +#if 0 +/* read variable length value */ +static void queue_varlen(MidiStatus *st, int c) +{ + st->qlen += (c & 0x7f); + if (c & 0x80) { + st->qlen <<= 7; + return; + } + if (st->qlen <= 0) { + st->qlen = 0; + st->queue = Q_NONE; + } + st->queue = Q_READ; + st->read = 0; +} +#endif + + +/* read a char */ +static void queue_read(MidiStatus *st, int c) +{ + if (st->read < MAX_MIDIBUF) { + if (st->queue != Q_SYSEX) + c &= 0x7f; + st->buf[st->read] = (unsigned char)c; + } + st->read++; + if (st->queue == Q_SYSEX && c == 0xf7) { + midi_system_exclusive(st); + st->queue = Q_NONE; + } else if (st->queue == Q_READ && st->read >= st->qlen) { + if (status_event[st->status].process) + status_event[st->status].process(st); + st->queue = Q_NONE; + } +} + + +/* + * status events + */ + +/* note on */ +static void midi_note_on(MidiStatus *st) +{ + DEBUG(2,printk("midi: note_on (%d) %d %d\n", st->chan, st->buf[0], st->buf[1])); + if (st->buf[1] == 0) + midi_note_off(st); + else + awe_start_note(0, st->chan, st->buf[0], st->buf[1]); +} + +/* note off */ +static void midi_note_off(MidiStatus *st) +{ + DEBUG(2,printk("midi: note_off (%d) %d %d\n", st->chan, st->buf[0], st->buf[1])); + awe_kill_note(0, st->chan, st->buf[0], st->buf[1]); +} + +/* key pressure change */ +static void midi_key_pressure(MidiStatus *st) +{ + awe_key_pressure(0, st->chan, st->buf[0], st->buf[1]); +} + +/* channel pressure change */ +static void midi_channel_pressure(MidiStatus *st) +{ + channels[st->chan].chan_press = st->buf[0]; + awe_modwheel_change(st->chan, st->buf[0]); +} + +/* pitch wheel change */ +static void midi_pitch_wheel(MidiStatus *st) +{ + int val = (int)st->buf[1] * 128 + st->buf[0]; + awe_bender(0, st->chan, val); +} + +/* program change */ +static void midi_program_change(MidiStatus *st) +{ + int preset; + preset = st->buf[0]; + if (midi_mode == MODE_GS && IS_DRUM_CHANNEL(st->chan) && preset == 127) + preset = 0; + else if (midi_mode == MODE_XG && xg_mapping && IS_DRUM_CHANNEL(st->chan)) + preset += 64; + + awe_set_instr(0, st->chan, preset); +} + +#define send_effect(chan,type,val) awe_send_effect(chan,-1,type,val) +#define add_effect(chan,type,val) awe_send_effect(chan,-1,(type)|0x80,val) +#define unset_effect(chan,type) awe_send_effect(chan,-1,(type)|0x40,0) + +/* midi control change */ +static void midi_control_change(MidiStatus *st) +{ + int cmd = st->buf[0]; + int val = st->buf[1]; + + DEBUG(2,printk("midi: control (%d) %d %d\n", st->chan, cmd, val)); + if (midi_mode == MODE_XG) { + if (xg_control_change(st, cmd, val)) + return; + } + + /* controls #31 - #64 are LSB of #0 - #31 */ + msb_bit = 1; + if (cmd >= 0x20 && cmd < 0x40) { + msb_bit = 0; + cmd -= 0x20; + } + + switch (cmd) { + case CTL_SOFT_PEDAL: + if (val == 127) + add_effect(st->chan, AWE_FX_CUTOFF, -160); + else + unset_effect(st->chan, AWE_FX_CUTOFF); + break; + + case CTL_BANK_SELECT: + midi_select_bank(st, val); + break; + + /* set RPN/NRPN parameter */ + case CTL_REGIST_PARM_NUM_MSB: + nrpn[st->chan]=0; rpn_msb[st->chan]=val; + break; + case CTL_REGIST_PARM_NUM_LSB: + nrpn[st->chan]=0; rpn_lsb[st->chan]=val; + break; + case CTL_NONREG_PARM_NUM_MSB: + nrpn[st->chan]=1; rpn_msb[st->chan]=val; + break; + case CTL_NONREG_PARM_NUM_LSB: + nrpn[st->chan]=1; rpn_lsb[st->chan]=val; + break; + + /* send RPN/NRPN entry */ + case CTL_DATA_ENTRY: + if (msb_bit) + rpn_val[st->chan] = val * 128; + else + rpn_val[st->chan] |= val; + if (nrpn[st->chan]) + midi_nrpn_event(st); + else + midi_rpn_event(st); + break; + + /* increase/decrease data entry */ + case CTL_DATA_INCREMENT: + rpn_val[st->chan]++; + midi_rpn_event(st); + break; + case CTL_DATA_DECREMENT: + rpn_val[st->chan]--; + midi_rpn_event(st); + break; + + /* default */ + default: + awe_controller(0, st->chan, cmd, val); + break; + } +} + +/* tone bank change */ +static void midi_select_bank(MidiStatus *st, int val) +{ + if (midi_mode == MODE_XG && msb_bit) { + xg_bankmode = val; + /* XG MSB value; not normal bank selection */ + switch (val) { + case 127: /* remap to drum channel */ + awe_controller(0, st->chan, CTL_BANK_SELECT, 128); + break; + default: /* remap to normal channel */ + awe_controller(0, st->chan, CTL_BANK_SELECT, val); + break; + } + return; + } else if (midi_mode == MODE_GS && !msb_bit) + /* ignore LSB bank in GS mode (used for mapping) */ + return; + + /* normal bank controls; accept both MSB and LSB */ + if (! IS_DRUM_CHANNEL(st->chan)) { + if (midi_mode == MODE_XG) { + if (xg_bankmode) return; + if (val == 64 || val == 126) + val = 0; + } else if (midi_mode == MODE_GS && val == 127) + val = 0; + awe_controller(0, st->chan, CTL_BANK_SELECT, val); + } +} + + +/* + * RPN events + */ + +static void midi_rpn_event(MidiStatus *st) +{ + int type; + type = (rpn_msb[st->chan]<<8) | rpn_lsb[st->chan]; + switch (type) { + case 0x0000: /* Pitch bend sensitivity */ + /* MSB only / 1 semitone per 128 */ + if (msb_bit) { + channels[st->chan].bender_range = + rpn_val[st->chan] * 100 / 128; + } + break; + + case 0x0001: /* fine tuning: */ + /* MSB/LSB, 8192=center, 100/8192 cent step */ + finetune = rpn_val[st->chan] - 8192; + midi_detune(st->chan, coarsetune, finetune); + break; + + case 0x0002: /* coarse tuning */ + /* MSB only / 8192=center, 1 semitone per 128 */ + if (msb_bit) { + coarsetune = rpn_val[st->chan] - 8192; + midi_detune(st->chan, coarsetune, finetune); + } + break; + + case 0x7F7F: /* "lock-in" RPN */ + break; + } +} + + +/* tuning: + * coarse = -8192 to 8192 (100 cent per 128) + * fine = -8192 to 8192 (max=100cent) + */ +static void midi_detune(int chan, int coarse, int fine) +{ + /* 4096 = 1200 cents in AWE parameter */ + int val; + val = coarse * 4096 / (12 * 128); + val += fine / 24; + if (val) + send_effect(chan, AWE_FX_INIT_PITCH, val); + else + unset_effect(chan, AWE_FX_INIT_PITCH); +} + + +/* + * system exclusive message + * GM/GS/XG macros are accepted + */ + +static void midi_system_exclusive(MidiStatus *st) +{ + /* GM on */ + static unsigned char gm_on_macro[] = { + 0x7e,0x7f,0x09,0x01, + }; + /* XG on */ + static unsigned char xg_on_macro[] = { + 0x43,0x10,0x4c,0x00,0x00,0x7e,0x00, + }; + /* GS prefix + * drum channel: XX=0x1?(channel), YY=0x15, ZZ=on/off + * reverb mode: XX=0x01, YY=0x30, ZZ=0-7 + * chorus mode: XX=0x01, YY=0x38, ZZ=0-7 + */ + static unsigned char gs_pfx_macro[] = { + 0x41,0x10,0x42,0x12,0x40,/*XX,YY,ZZ*/ + }; + +#if 0 + /* SC88 system mode set + * single module mode: XX=1 + * double module mode: XX=0 + */ + static unsigned char gs_mode_macro[] = { + 0x41,0x10,0x42,0x12,0x00,0x00,0x7F,/*ZZ*/ + }; + /* SC88 display macro: XX=01:bitmap, 00:text + */ + static unsigned char gs_disp_macro[] = { + 0x41,0x10,0x45,0x12,0x10,/*XX,00*/ + }; +#endif + + /* GM on */ + if (memcmp(st->buf, gm_on_macro, sizeof(gm_on_macro)) == 0) { + if (midi_mode != MODE_GS && midi_mode != MODE_XG) + midi_mode = MODE_GM; + init_midi_status(st); + } + + /* GS macros */ + else if (memcmp(st->buf, gs_pfx_macro, sizeof(gs_pfx_macro)) == 0) { + if (midi_mode != MODE_GS && midi_mode != MODE_XG) + midi_mode = MODE_GS; + + if (st->buf[5] == 0x00 && st->buf[6] == 0x7f && st->buf[7] == 0x00) { + /* GS reset */ + init_midi_status(st); + } + + else if ((st->buf[5] & 0xf0) == 0x10 && st->buf[6] == 0x15) { + /* drum pattern */ + int p = st->buf[5] & 0x0f; + if (p == 0) p = 9; + else if (p < 10) p--; + if (st->buf[7] == 0) + DRUM_CHANNEL_OFF(p); + else + DRUM_CHANNEL_ON(p); + + } else if ((st->buf[5] & 0xf0) == 0x10 && st->buf[6] == 0x21) { + /* program */ + int p = st->buf[5] & 0x0f; + if (p == 0) p = 9; + else if (p < 10) p--; + if (! IS_DRUM_CHANNEL(p)) + awe_set_instr(0, p, st->buf[7]); + + } else if (st->buf[5] == 0x01 && st->buf[6] == 0x30) { + /* reverb mode */ + awe_set_reverb_mode(st->buf[7]); + + } else if (st->buf[5] == 0x01 && st->buf[6] == 0x38) { + /* chorus mode */ + awe_set_chorus_mode(st->buf[7]); + + } else if (st->buf[5] == 0x00 && st->buf[6] == 0x04) { + /* master volume */ + awe_change_master_volume(st->buf[7]); + + } + } + + /* XG on */ + else if (memcmp(st->buf, xg_on_macro, sizeof(xg_on_macro)) == 0) { + midi_mode = MODE_XG; + xg_mapping = TRUE; + xg_bankmode = 0; + } +} + + +/*----------------------------------------------------------------*/ + +/* + * convert NRPN/control values + */ + +static int send_converted_effect(ConvTable *table, int num_tables, MidiStatus *st, int type, int val) +{ + int i, cval; + for (i = 0; i < num_tables; i++) { + if (table[i].control == type) { + cval = table[i].convert(val); + send_effect(st->chan, table[i].awe_effect, cval); + return TRUE; + } + } + return FALSE; +} + +static int add_converted_effect(ConvTable *table, int num_tables, MidiStatus *st, int type, int val) +{ + int i, cval; + for (i = 0; i < num_tables; i++) { + if (table[i].control == type) { + cval = table[i].convert(val); + add_effect(st->chan, table[i].awe_effect|0x80, cval); + return TRUE; + } + } + return FALSE; +} + + +/* + * AWE32 NRPN effects + */ + +static unsigned short fx_delay(int val); +static unsigned short fx_attack(int val); +static unsigned short fx_hold(int val); +static unsigned short fx_decay(int val); +static unsigned short fx_the_value(int val); +static unsigned short fx_twice_value(int val); +static unsigned short fx_conv_pitch(int val); +static unsigned short fx_conv_Q(int val); + +/* function for each NRPN */ /* [range] units */ +#define fx_env1_delay fx_delay /* [0,5900] 4msec */ +#define fx_env1_attack fx_attack /* [0,5940] 1msec */ +#define fx_env1_hold fx_hold /* [0,8191] 1msec */ +#define fx_env1_decay fx_decay /* [0,5940] 4msec */ +#define fx_env1_release fx_decay /* [0,5940] 4msec */ +#define fx_env1_sustain fx_the_value /* [0,127] 0.75dB */ +#define fx_env1_pitch fx_the_value /* [-127,127] 9.375cents */ +#define fx_env1_cutoff fx_the_value /* [-127,127] 56.25cents */ + +#define fx_env2_delay fx_delay /* [0,5900] 4msec */ +#define fx_env2_attack fx_attack /* [0,5940] 1msec */ +#define fx_env2_hold fx_hold /* [0,8191] 1msec */ +#define fx_env2_decay fx_decay /* [0,5940] 4msec */ +#define fx_env2_release fx_decay /* [0,5940] 4msec */ +#define fx_env2_sustain fx_the_value /* [0,127] 0.75dB */ + +#define fx_lfo1_delay fx_delay /* [0,5900] 4msec */ +#define fx_lfo1_freq fx_twice_value /* [0,127] 84mHz */ +#define fx_lfo1_volume fx_twice_value /* [0,127] 0.1875dB */ +#define fx_lfo1_pitch fx_the_value /* [-127,127] 9.375cents */ +#define fx_lfo1_cutoff fx_twice_value /* [-64,63] 56.25cents */ + +#define fx_lfo2_delay fx_delay /* [0,5900] 4msec */ +#define fx_lfo2_freq fx_twice_value /* [0,127] 84mHz */ +#define fx_lfo2_pitch fx_the_value /* [-127,127] 9.375cents */ + +#define fx_init_pitch fx_conv_pitch /* [-8192,8192] cents */ +#define fx_chorus fx_the_value /* [0,255] -- */ +#define fx_reverb fx_the_value /* [0,255] -- */ +#define fx_cutoff fx_twice_value /* [0,127] 62Hz */ +#define fx_filterQ fx_conv_Q /* [0,127] -- */ + +static unsigned short fx_delay(int val) +{ + return (unsigned short)calc_parm_delay(val); +} + +static unsigned short fx_attack(int val) +{ + return (unsigned short)calc_parm_attack(val); +} + +static unsigned short fx_hold(int val) +{ + return (unsigned short)calc_parm_hold(val); +} + +static unsigned short fx_decay(int val) +{ + return (unsigned short)calc_parm_decay(val); +} + +static unsigned short fx_the_value(int val) +{ + return (unsigned short)(val & 0xff); +} + +static unsigned short fx_twice_value(int val) +{ + return (unsigned short)((val * 2) & 0xff); +} + +static unsigned short fx_conv_pitch(int val) +{ + return (short)(val * 4096 / 1200); +} + +static unsigned short fx_conv_Q(int val) +{ + return (unsigned short)((val / 8) & 0xff); +} + + +static ConvTable awe_effects[] = +{ + { 0, AWE_FX_LFO1_DELAY, fx_lfo1_delay}, + { 1, AWE_FX_LFO1_FREQ, fx_lfo1_freq}, + { 2, AWE_FX_LFO2_DELAY, fx_lfo2_delay}, + { 3, AWE_FX_LFO2_FREQ, fx_lfo2_freq}, + + { 4, AWE_FX_ENV1_DELAY, fx_env1_delay}, + { 5, AWE_FX_ENV1_ATTACK,fx_env1_attack}, + { 6, AWE_FX_ENV1_HOLD, fx_env1_hold}, + { 7, AWE_FX_ENV1_DECAY, fx_env1_decay}, + { 8, AWE_FX_ENV1_SUSTAIN, fx_env1_sustain}, + { 9, AWE_FX_ENV1_RELEASE, fx_env1_release}, + + {10, AWE_FX_ENV2_DELAY, fx_env2_delay}, + {11, AWE_FX_ENV2_ATTACK, fx_env2_attack}, + {12, AWE_FX_ENV2_HOLD, fx_env2_hold}, + {13, AWE_FX_ENV2_DECAY, fx_env2_decay}, + {14, AWE_FX_ENV2_SUSTAIN, fx_env2_sustain}, + {15, AWE_FX_ENV2_RELEASE, fx_env2_release}, + + {16, AWE_FX_INIT_PITCH, fx_init_pitch}, + {17, AWE_FX_LFO1_PITCH, fx_lfo1_pitch}, + {18, AWE_FX_LFO2_PITCH, fx_lfo2_pitch}, + {19, AWE_FX_ENV1_PITCH, fx_env1_pitch}, + {20, AWE_FX_LFO1_VOLUME, fx_lfo1_volume}, + {21, AWE_FX_CUTOFF, fx_cutoff}, + {22, AWE_FX_FILTERQ, fx_filterQ}, + {23, AWE_FX_LFO1_CUTOFF, fx_lfo1_cutoff}, + {24, AWE_FX_ENV1_CUTOFF, fx_env1_cutoff}, + {25, AWE_FX_CHORUS, fx_chorus}, + {26, AWE_FX_REVERB, fx_reverb}, +}; + +static int num_awe_effects = numberof(awe_effects); + + +/* + * GS(SC88) NRPN effects; still experimental + */ + +/* cutoff: quarter semitone step, max=255 */ +static unsigned short gs_cutoff(int val) +{ + return (val - 64) * gs_sense[FX_CUTOFF] / 50; +} + +/* resonance: 0 to 15(max) */ +static unsigned short gs_filterQ(int val) +{ + return (val - 64) * gs_sense[FX_RESONANCE] / 50; +} + +/* attack: */ +static unsigned short gs_attack(int val) +{ + return -(val - 64) * gs_sense[FX_ATTACK] / 50; +} + +/* decay: */ +static unsigned short gs_decay(int val) +{ + return -(val - 64) * gs_sense[FX_RELEASE] / 50; +} + +/* release: */ +static unsigned short gs_release(int val) +{ + return -(val - 64) * gs_sense[FX_RELEASE] / 50; +} + +/* vibrato freq: 0.042Hz step, max=255 */ +static unsigned short gs_vib_rate(int val) +{ + return (val - 64) * gs_sense[FX_VIBRATE] / 50; +} + +/* vibrato depth: max=127, 1 octave */ +static unsigned short gs_vib_depth(int val) +{ + return (val - 64) * gs_sense[FX_VIBDEPTH] / 50; +} + +/* vibrato delay: -0.725msec step */ +static unsigned short gs_vib_delay(int val) +{ + return -(val - 64) * gs_sense[FX_VIBDELAY] / 50; +} + +static ConvTable gs_effects[] = +{ + {32, AWE_FX_CUTOFF, gs_cutoff}, + {33, AWE_FX_FILTERQ, gs_filterQ}, + {99, AWE_FX_ENV2_ATTACK, gs_attack}, + {100, AWE_FX_ENV2_DECAY, gs_decay}, + {102, AWE_FX_ENV2_RELEASE, gs_release}, + {8, AWE_FX_LFO1_FREQ, gs_vib_rate}, + {9, AWE_FX_LFO1_VOLUME, gs_vib_depth}, + {10, AWE_FX_LFO1_DELAY, gs_vib_delay}, +}; + +static int num_gs_effects = numberof(gs_effects); + + +/* + * NRPN events: accept as AWE32/SC88 specific controls + */ + +static void midi_nrpn_event(MidiStatus *st) +{ + if (rpn_msb[st->chan] == 127 && rpn_lsb[st->chan] <= 26) { + if (! msb_bit) /* both MSB/LSB necessary */ + send_converted_effect(awe_effects, num_awe_effects, + st, rpn_lsb[st->chan], + rpn_val[st->chan] - 8192); + } else if (rpn_msb[st->chan] == 1) { + if (msb_bit) /* only MSB is valid */ + add_converted_effect(gs_effects, num_gs_effects, + st, rpn_lsb[st->chan], + rpn_val[st->chan] / 128); + } +} + + +/* + * XG control effects; still experimental + */ + +/* cutoff: quarter semitone step, max=255 */ +static unsigned short xg_cutoff(int val) +{ + return (val - 64) * xg_sense[FX_CUTOFF] / 64; +} + +/* resonance: 0(open) to 15(most nasal) */ +static unsigned short xg_filterQ(int val) +{ + return (val - 64) * xg_sense[FX_RESONANCE] / 64; +} + +/* attack: */ +static unsigned short xg_attack(int val) +{ + return -(val - 64) * xg_sense[FX_ATTACK] / 64; +} + +/* release: */ +static unsigned short xg_release(int val) +{ + return -(val - 64) * xg_sense[FX_RELEASE] / 64; +} + +static ConvTable xg_effects[] = +{ + {71, AWE_FX_CUTOFF, xg_cutoff}, + {74, AWE_FX_FILTERQ, xg_filterQ}, + {72, AWE_FX_ENV2_RELEASE, xg_release}, + {73, AWE_FX_ENV2_ATTACK, xg_attack}, +}; + +static int num_xg_effects = numberof(xg_effects); + +static int xg_control_change(MidiStatus *st, int cmd, int val) +{ + return add_converted_effect(xg_effects, num_xg_effects, st, cmd, val); +} + +#endif /* CONFIG_AWE32_MIDIEMU */ + + +/*----------------------------------------------------------------*/ + + +/* + * 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(); +} + + +/* + * Core Device Management Functions + */ + +/* 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; +} + +/* + * port request + * 0x620-623, 0xA20-A23, 0xE20-E23 + */ + +static int +awe_request_region(void) +{ + if (! port_setuped) + return 0; + if (! request_region(awe_ports[0], 4, "sound driver (AWE32)")) + return 0; + if (! request_region(awe_ports[1], 4, "sound driver (AWE32)")) + goto err_out; + if (! request_region(awe_ports[3], 4, "sound driver (AWE32)")) + goto err_out1; + return 1; +err_out1: + release_region(awe_ports[1], 4); +err_out: + release_region(awe_ports[0], 4); + return 0; +} + +static void +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); +} + +static int awe_attach_device(void) +{ + if (awe_present) return 0; /* for OSS38.. called twice? */ + + /* reserve I/O ports for awedrv */ + if (! awe_request_region()) { + 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 synthesizers\n"); + awe_release_region(); + 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 + + /* clear all samples */ + awe_reset_samples(); + + /* initialize 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 awe_dettach_device(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; + } +} + + +/* + * Legacy device Probing + */ + +/* detect emu8000 chip on the specified address; from VV's guide */ + +static int __init +awe_detect_base(int addr) +{ + setup_ports(addr, 0, 0); + if ((awe_peek(AWE_U1) & 0x000F) != 0x000C) + return 0; + if ((awe_peek(AWE_HWCF1) & 0x007E) != 0x0058) + return 0; + if ((awe_peek(AWE_HWCF2) & 0x0003) != 0x0003) + return 0; + DEBUG(0,printk("AWE32 found at %x\n", addr)); + return 1; +} + +static int __init awe_detect_legacy_devices(void) +{ + int base; + for (base = 0x620; base <= 0x680; base += 0x20) + if (awe_detect_base(base)) { + awe_attach_device(); + return 1; + } + DEBUG(0,printk("AWE32 Legacy detection failed\n")); + return 0; +} + + +/* + * PnP device Probing + */ + +static struct pnp_device_id awe_pnp_ids[] = { + {.id = "CTL0021", .driver_data = 0}, /* AWE32 WaveTable */ + {.id = "CTL0022", .driver_data = 0}, /* AWE64 WaveTable */ + {.id = "CTL0023", .driver_data = 0}, /* AWE64 Gold WaveTable */ + { } /* terminator */ +}; + +MODULE_DEVICE_TABLE(pnp, awe_pnp_ids); + +static int awe_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id) +{ + int io1, io2, io3; + + if (awe_present) { + printk(KERN_ERR "AWE32: This driver only supports one AWE32 device, skipping.\n"); + } + + if (!pnp_port_valid(dev,0) || + !pnp_port_valid(dev,1) || + !pnp_port_valid(dev,2)) { + printk(KERN_ERR "AWE32: The PnP device does not have the required resources.\n"); + return -EINVAL; + } + io1 = pnp_port_start(dev,0); + io2 = pnp_port_start(dev,1); + io3 = pnp_port_start(dev,2); + printk(KERN_INFO "AWE32: A PnP Wave Table was detected at IO's %#x,%#x,%#x\n.", + io1, io2, io3); + setup_ports(io1, io2, io3); + + awe_attach_device(); + return 0; +} + +static void awe_pnp_remove(struct pnp_dev *dev) +{ + awe_dettach_device(); +} + +static struct pnp_driver awe_pnp_driver = { + .name = "AWE32", + .id_table = awe_pnp_ids, + .probe = awe_pnp_probe, + .remove = awe_pnp_remove, +}; + +static int __init awe_detect_pnp_devices(void) +{ + int ret; + + ret = pnp_register_driver(&awe_pnp_driver); + if (ret<0) + printk(KERN_ERR "AWE32: PnP support is unavailable.\n"); + return ret; +} + + +/* + * device / lowlevel (module) interface + */ + +static int __init +awe_detect(void) +{ + printk(KERN_INFO "AWE32: Probing for WaveTable...\n"); + if (isapnp) { + if (awe_detect_pnp_devices()>=0) + return 1; + } else + printk(KERN_INFO "AWE32: Skipping PnP detection.\n"); + + if (awe_detect_legacy_devices()) + return 1; + + return 0; +} + +static int __init attach_awe(void) +{ + return awe_detect() ? 0 : -ENODEV; +} + +static void __exit unload_awe(void) +{ + pnp_unregister_driver(&awe_pnp_driver); + awe_dettach_device(); +} + + +module_init(attach_awe); +module_exit(unload_awe); + +#ifndef MODULE +static int __init setup_awe(char *str) +{ + /* io, memsize, isapnp */ + int ints[4]; + + str = get_options(str, ARRAY_SIZE(ints), ints); + + io = ints[1]; + memsize = ints[2]; + isapnp = ints[3]; + + return 1; +} + +__setup("awe=", setup_awe); +#endif |