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6022 6023 6024 6025 6026 6027 6028 6029 6030 6031 6032 6033 6034 6035 6036 6037 6038 6039 6040 6041 6042 6043 6044 6045 6046 6047 6048 6049 6050 6051 6052 6053 6054 6055 6056 6057 6058 6059 6060 6061 6062 6063 6064 6065 6066 6067 6068 6069 6070 6071 6072 6073 6074 6075 6076 6077 6078 6079 6080 6081 6082 6083 6084 6085 6086 6087 6088 6089 6090 6091 6092 6093 6094 6095 6096 6097 6098 6099 6100 6101 6102 6103 6104 6105 6106 6107 6108 6109 6110 6111 6112 6113 6114 6115 6116 6117 6118 6119 6120 6121 6122 6123 6124 6125 6126 6127 6128 6129 6130 6131 6132 6133 6134 6135 6136 6137 6138 6139 6140 6141 6142 6143 6144 6145 6146 6147 6148 6149 6150 6151 6152 6153 6154 6155 6156 6157 6158 6159 6160 6161 6162 6163 6164 6165 6166 6167 6168 6169 6170 6171 6172 6173 6174 6175 6176 6177 6178 6179 6180 6181 6182 6183 6184 6185 6186 6187 6188 6189 6190 6191 6192 6193 6194 6195 6196 6197 6198 6199 6200 6201 6202 6203 6204 6205 6206 6207 6208 6209 6210 6211 6212 6213 6214 6215 6216 6217 6218 6219 6220 6221 6222 6223 6224 6225 6226 6227 6228 6229 6230 6231 6232 6233 6234 6235 6236 6237 6238 6239 6240 6241 6242 6243 6244 6245 6246 6247 6248 6249 6250 6251 6252 6253 6254 6255 | /* * sound/awe_wave.c * * The low level driver for the AWE32/SB32/AWE64 wave table synth. * version 0.4.3; Feb. 1, 1999 * * Copyright (C) 1996-1999 Takashi Iwai * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /* include initial header files and compatibility macros */ #ifdef __FreeBSD__ # include <i386/isa/sound/awe_compat.h> #else # include "awe_compat.h" #endif /* FreeBSD */ #ifdef __linux__ # include <linux/config.h> #endif /*----------------------------------------------------------------*/ #if defined(CONFIG_AWE32_SYNTH) || defined(CONFIG_AWE32_SYNTH_MODULE) /*---------------------------------------------------------------- * 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 *----------------------------------------------------------------*/ /* soundfont record */ typedef struct _sf_list { unsigned short sf_id; unsigned short type; int num_info; /* current info table index */ int num_sample; /* current sample table index */ int mem_ptr; /* current word byte pointer */ int infos; int samples; #ifdef AWE_ALLOW_SAMPLE_SHARING int shared; /* shared index */ unsigned char name[AWE_PATCH_NAME_LEN]; #endif } sf_list; /* bank record */ typedef struct _awe_voice_list { int next; /* linked list with same sf_id */ unsigned char bank, instr; /* preset number information */ char type, disabled; /* type=normal/mapped, disabled=boolean */ awe_voice_info v; /* voice information */ int next_instr; /* preset table list */ int next_bank; /* preset table list */ } awe_voice_list; /* voice list type */ #define V_ST_NORMAL 0 #define V_ST_MAPPED 1 typedef struct _awe_sample_list { int next; /* linked list with same sf_id */ awe_sample_info v; /* sample information */ } awe_sample_list; /* sample and information table */ static int current_sf_id = 0; static int locked_sf_id = 0; static int max_sfs; static sf_list *sflists = NULL; #define awe_free_mem_ptr() (current_sf_id <= 0 ? 0 : sflists[current_sf_id-1].mem_ptr) #define awe_free_info() (current_sf_id <= 0 ? 0 : sflists[current_sf_id-1].num_info) #define awe_free_sample() (current_sf_id <= 0 ? 0 : sflists[current_sf_id-1].num_sample) static int max_samples; static awe_sample_list *samples = NULL; static int max_infos; static awe_voice_list *infos = NULL; #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 int 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 vrec; /* instrument list */ int def_vrec; /* default instrument list */ 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 /* set variables */ #if defined(AWE_MODULE_SUPPORT) && defined(MODULE) /* replace awe_port variable with exported variable */ #define awe_port io #define awe_mem_size memsize int io = AWE_DEFAULT_BASE_ADDR; /* Emu8000 base address */ int memsize = AWE_DEFAULT_MEM_SIZE; /* memory size in Kbytes */ #ifdef MODULE_PARM MODULE_PARM(io, "i"); MODULE_PARM_DESC(io, "base i/o port of Emu8000"); MODULE_PARM(memsize, "i"); MODULE_PARM_DESC(memsize, "onboard DRAM size in Kbytes"); #endif #else static int awe_port = AWE_DEFAULT_BASE_ADDR; static int awe_mem_size = AWE_DEFAULT_MEM_SIZE; #endif /* module */ /* DRAM start offset */ static int awe_mem_start = AWE_DRAM_OFFSET; /* maximum channels for playing */ static int awe_max_voices = AWE_MAX_VOICES; static int patch_opened = 0; /* sample already loaded? */ static char atten_relative = FALSE; static short atten_offset = 0; static int awe_present = FALSE; /* awe device present? */ static int awe_busy = FALSE; /* awe device opened? */ static int my_dev = -1; #define DEFAULT_DRUM_FLAGS ((1 << 9) | (1 << 25)) #define IS_DRUM_CHANNEL(c) (drum_flags & (1 << (c))) #define DRUM_CHANNEL_ON(c) (drum_flags |= (1 << (c))) #define DRUM_CHANNEL_OFF(c) (drum_flags &= ~(1 << (c))) static unsigned int drum_flags = DEFAULT_DRUM_FLAGS; /* channel flags */ static int playing_mode = AWE_PLAY_INDIRECT; #define SINGLE_LAYER_MODE() (playing_mode == AWE_PLAY_INDIRECT || playing_mode == AWE_PLAY_DIRECT) #define MULTI_LAYER_MODE() (playing_mode == AWE_PLAY_MULTI || playing_mode == AWE_PLAY_MULTI2) static int current_alloc_time = 0; /* voice allocation index for channel mode */ static struct synth_info awe_info = { "AWE32 Synth", /* name */ 0, /* device */ SYNTH_TYPE_SAMPLE, /* synth_type */ SAMPLE_TYPE_AWE32, /* synth_subtype */ 0, /* perc_mode (obsolete) */ AWE_MAX_VOICES, /* nr_voices */ 0, /* nr_drums (obsolete) */ AWE_MAX_INFOS /* instr_bank_size */ }; static struct voice_alloc_info *voice_alloc; /* set at initialization */ /*---------------------------------------------------------------- * function prototypes *----------------------------------------------------------------*/ #if defined(linux) && !defined(AWE_OBSOLETE_VOXWARE) static int awe_check_port(void); static void awe_request_region(void); static void awe_release_region(void); #endif /* linux & obsolete */ static void awe_reset_samples(void); /* emu8000 chip i/o access */ static void setup_ports(int p1, int p2, int p3); static void awe_poke(unsigned short cmd, unsigned short port, unsigned short data); static void awe_poke_dw(unsigned short cmd, unsigned short port, unsigned int data); static unsigned short awe_peek(unsigned short cmd, unsigned short port); static unsigned int awe_peek_dw(unsigned short cmd, unsigned short port); static void awe_wait(unsigned short delay); /* initialize emu8000 chip */ static int _attach_awe(void); static void _unload_awe(void); static void awe_initialize(void); /* set voice parameters */ static void awe_init_ctrl_parms(int init_all); static void awe_init_voice_info(awe_voice_info *vp); static void awe_init_voice_parm(awe_voice_parm *pp); #ifdef AWE_HAS_GUS_COMPATIBILITY static int freq_to_note(int freq); static int calc_rate_offset(int Hz); /*static int calc_parm_delay(int msec);*/ static int calc_parm_hold(int msec); static int calc_parm_attack(int msec); static int calc_parm_decay(int msec); static int calc_parm_search(int msec, short *table); #endif /* gus compat */ /* turn on/off note */ static void awe_note_on(int voice); static void awe_note_off(int voice); static void awe_terminate(int voice); static void awe_exclusive_off(int voice); static void awe_note_off_all(int do_sustain); /* calculate voice parameters */ typedef void (*fx_affect_func)(int voice, int forced); static void awe_set_pitch(int voice, int forced); static void awe_set_voice_pitch(int voice, int forced); static void awe_set_volume(int voice, int forced); static void awe_set_voice_vol(int voice, int forced); static void awe_set_pan(int voice, int forced); static void awe_fx_fmmod(int voice, int forced); static void awe_fx_tremfrq(int voice, int forced); static void awe_fx_fm2frq2(int voice, int forced); static void awe_fx_filterQ(int voice, int forced); static void awe_calc_pitch(int voice); #ifdef AWE_HAS_GUS_COMPATIBILITY static void awe_calc_pitch_from_freq(int voice, int freq); #endif static void awe_calc_volume(int voice); static void awe_update_volume(void); static void awe_change_master_volume(short val); static void awe_voice_init(int voice, int init_all); static void awe_channel_init(int ch, int init_all); static void awe_fx_init(int ch); static void awe_send_effect(int voice, int layer, int type, int val); static void awe_modwheel_change(int voice, int value); /* sequencer interface */ static int awe_open(int dev, int mode); static void awe_close(int dev); static int awe_ioctl(int dev, unsigned int cmd, caddr_t arg); static int awe_kill_note(int dev, int voice, int note, int velocity); static int awe_start_note(int dev, int v, int note_num, int volume); static int awe_set_instr(int dev, int voice, int instr_no); static int awe_set_instr_2(int dev, int voice, int instr_no); static void awe_reset(int dev); static void awe_hw_control(int dev, unsigned char *event); static int awe_load_patch(int dev, int format, const char *addr, int offs, int count, int pmgr_flag); static void awe_aftertouch(int dev, int voice, int pressure); static void awe_controller(int dev, int voice, int ctrl_num, int value); static void awe_panning(int dev, int voice, int value); static void awe_volume_method(int dev, int mode); #ifndef AWE_NO_PATCHMGR static int awe_patchmgr(int dev, struct patmgr_info *rec); #endif 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_instr(int bank, int preset); static int awe_search_multi_voices(int rec, int note, int velocity, awe_voice_info **vlist); static void awe_alloc_multi_voices(int ch, int note, int velocity, int key); static void awe_alloc_one_voice(int voice, int note, int velocity); static int awe_clear_voice(void); /* load / remove patches */ static int awe_open_patch(awe_patch_info *patch, const char *addr, int count); static int awe_close_patch(awe_patch_info *patch, const char *addr, int count); static int awe_unload_patch(awe_patch_info *patch, const char *addr, int count); static int awe_load_info(awe_patch_info *patch, const char *addr, int count); static int awe_load_data(awe_patch_info *patch, const char *addr, int count); static int awe_replace_data(awe_patch_info *patch, const char *addr, int count); static int awe_load_map(awe_patch_info *patch, const char *addr, int count); #ifdef AWE_HAS_GUS_COMPATIBILITY static int awe_load_guspatch(const char *addr, int offs, int size, int pmgr_flag); #endif /*static int awe_probe_info(awe_patch_info *patch, const char *addr, int count);*/ static int awe_probe_data(awe_patch_info *patch, const char *addr, int count); static int check_patch_opened(int type, char *name); static int awe_write_wave_data(const char *addr, int offset, awe_sample_info *sp, int channels); static void add_sf_info(int rec); static void add_sf_sample(int rec); static void purge_old_list(int rec, int next); static void add_info_list(int rec); static void awe_remove_samples(int sf_id); static void rebuild_preset_list(void); static short awe_set_sample(awe_voice_info *vp); static int search_sample_index(int sf, int sample, int level); #ifdef AWE_ALLOW_SAMPLE_SHARING static int is_identical_id(int id1, int id2); static int is_identical_name(unsigned char *name, int id); static int is_shared_sf(unsigned char *name); static int info_duplicated(awe_voice_list *rec); #endif /* allow sharing */ /* lowlevel functions */ static void awe_init_audio(void); static void awe_init_dma(void); static void awe_init_array(void); static void awe_send_array(unsigned short *data); static void awe_tweak_voice(int voice); static void awe_tweak(void); static void awe_init_fm(void); static int awe_open_dram_for_write(int offset, int channels); static void awe_open_dram_for_check(void); static void awe_close_dram(void); static void awe_write_dram(unsigned short c); static int awe_detect_base(int addr); static int awe_detect(void); static void awe_check_dram(void); static int awe_load_chorus_fx(awe_patch_info *patch, const char *addr, int count); static void awe_set_chorus_mode(int mode); static void awe_update_chorus_mode(void); static int awe_load_reverb_fx(awe_patch_info *patch, const char *addr, int count); static void awe_set_reverb_mode(int mode); static void awe_update_reverb_mode(void); static void awe_equalizer(int bass, int treble); static void awe_update_equalizer(void); #ifdef CONFIG_AWE32_MIXER static void attach_mixer(void); static void unload_mixer(void); #endif #ifdef CONFIG_AWE32_MIDIEMU static void attach_midiemu(void); static void unload_midiemu(void); #endif #define limitvalue(x, a, b) if ((x) < (a)) (x) = (a); else if ((x) > (b)) (x) = (b) #ifdef __FreeBSD__ /* FIXME */ #define MALLOC_LOOP_DATA #define WAIT_BY_LOOP #endif /*---------------------------------------------------------------- * 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 = { #ifdef AWE_OSS38 "EMU8K", #endif &awe_info, 0, SYNTH_TYPE_SAMPLE, SAMPLE_TYPE_AWE32, awe_open, awe_close, awe_ioctl, awe_kill_note, awe_start_note, awe_set_instr_2, awe_reset, awe_hw_control, awe_load_patch, awe_aftertouch, awe_controller, awe_panning, awe_volume_method, #ifndef AWE_NO_PATCHMGR awe_patchmgr, #endif awe_bender, awe_alloc, awe_setup_voice }; /*================================================================ * General attach / unload interface *================================================================*/ static int _attach_awe(void) { if (awe_present) return 0; /* for OSS38.. called twice? */ /* check presence of AWE32 card */ if (! awe_detect()) { printk(KERN_WARNING "AWE32: not detected\n"); return 0; } /* check AWE32 ports are available */ #if defined(linux) && !defined(AWE_OBSOLETE_VOXWARE) if (awe_check_port()) { printk(KERN_WARNING "AWE32: I/O area already used.\n"); return 0; } #endif /* set buffers to NULL */ sflists = NULL; samples = NULL; infos = NULL; /* allocate sample tables */ INIT_TABLE(sflists, max_sfs, AWE_MAX_SF_LISTS, sf_list); INIT_TABLE(samples, max_samples, AWE_MAX_SAMPLES, awe_sample_list); INIT_TABLE(infos, max_infos, AWE_MAX_INFOS, awe_voice_list); my_dev = sound_alloc_synthdev(); if (my_dev == -1) { printk(KERN_WARNING "AWE32 Error: too many synthesizers\n"); 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 #if defined(linux) && !defined(AWE_OBSOLETE_VOXWARE) /* reserve I/O ports for awedrv */ awe_request_region(); #endif /* clear all samples */ awe_reset_samples(); /* intialize AWE32 hardware */ awe_initialize(); sprintf(awe_info.name, "AWE32-%s (RAM%dk)", AWEDRV_VERSION, awe_mem_size/1024); printk("<SoundBlaster EMU8000 (RAM%dk)>\n", awe_mem_size/1024); awe_present = TRUE; #if defined(AWE_MODULE_SUPPORT) && defined(MODULE) SOUND_LOCK; #endif return 1; } #ifdef AWE_DYNAMIC_BUFFER static void free_tables(void) { if (sflists) my_free(sflists); sflists = NULL; max_sfs = 0; if (samples) my_free(samples); samples = NULL; max_samples = 0; if (infos) my_free(infos); infos = NULL; max_infos = 0; } static void *realloc_block(void *buf, int oldsize, int size) { void *ptr; if (oldsize == size) return buf; if ((ptr = my_malloc(size)) == NULL) return NULL; if (oldsize && size) MEMCPY(ptr, buf, ((oldsize < size) ? oldsize : size) ); if (buf) my_free(buf); return ptr; } #else /* dynamic buffer */ #define free_buffers() /**/ #endif /* dynamic_buffer */ static void _unload_awe(void) { if (awe_present) { awe_reset_samples(); awe_release_region(); free_tables(); #ifdef CONFIG_AWE32_MIXER unload_mixer(); #endif #ifdef CONFIG_AWE32_MIDIEMU unload_midiemu(); #endif sound_unload_synthdev(my_dev); awe_present = FALSE; #if defined(AWE_MODULE_SUPPORT) && defined(MODULE) SOUND_LOCK_END; #endif } } /*================================================================ * Linux interface *================================================================*/ #ifdef linux /*---------------------------------------------------------------- * Linux PnP driver support *----------------------------------------------------------------*/ #ifdef CONFIG_PNP_DRV #include <linux/pnp.h> static int pnp = 1; /* use PnP as default */ #define AWE_NUM_CHIPS 3 static unsigned int pnp_ids[AWE_NUM_CHIPS] = { PNP_EISAID('C','T','L',0x0021), PNP_EISAID('C','T','L',0x0022), PNP_EISAID('C','T','L',0x0023), }; static struct pnp_driver pnp_awe[AWE_NUM_CHIPS]; static int awe_pnp_ok = 0; static void awe_pnp_config(struct pnp_device *d) { struct pnp_resource *r; int port[3]; int nio = 0; port[0] = port[1] = port[2] = 0; for (r = d->res; r != NULL; r = r->next) { if (r->type == PNP_RES_IO) { if (nio >= 0 && nio < 3) port[nio] = r->start; nio++; } } setup_ports(port[0], port[1], port[2]); DEBUG(0,printk("AWE32: PnP setup ports: %x:%x:%x\n", port[0], port[1], port[2])); } static int awe_pnp_event (struct pnp_device *d, struct pnp_drv_event *e) { struct pnp_driver *drv = d->l.k.driver; switch (e->type) { case PNP_DRV_ALLOC: drv->flags |= PNP_DRV_INUSE; awe_pnp_ok = 1; awe_pnp_config(d); _attach_awe(); break; case PNP_DRV_DISABLE: case PNP_DRV_EMERGSTOP: drv->flags &= ~PNP_DRV_INUSE; awe_pnp_ok = 0; _unload_awe(); break; case PNP_DRV_CONFIG: if (awe_busy) return 1; /* used now */ awe_release_region(); awe_pnp_config(d); awe_request_region(); break; case PNP_DRV_RECONFIG: break; } return 0; } static int awe_initpnp (void) { int i; for (i = 0; i < AWE_NUM_CHIPS; i++) { pnp_awe[i].id.type = PNP_HDL_ISA; pnp_awe[i].id.t.isa.id = pnp_ids[i]; pnp_awe[i].id.next = NULL; pnp_awe[i].name = "Soundblaster AWE32/AWE64 PnP"; pnp_awe[i].event = awe_pnp_event; pnp_register_driver(&pnp_awe[i], 1); } return 0; } static void awe_unload_pnp (void) { int i; for (i = 0; i < AWE_NUM_CHIPS; i++) pnp_unregister_driver(&pnp_awe[i]); } #endif /* PnP support */ /*---------------------------------------------------------------- * device / lowlevel (module) interface *----------------------------------------------------------------*/ #ifdef AWE_OBSOLETEL_VOXWARE /* old type interface */ int attach_awe_obsolete(int mem_start, struct address_info *hw_config) { my_malloc_init(mem_start); if (! _attach_awe()) return 0; return my_malloc_memptr(); } int probe_awe_obsolete(struct address_info *hw_config) { return 1; /*return awe_detect();*/ } #else /* !obsolete */ /* new type interface */ int attach_awe(void) { #ifdef CONFIG_PNP_DRV if (pnp) { awe_initpnp(); if (awe_pnp_ok) return 0; } #endif /* pnp */ _attach_awe(); return 0; } void unload_awe(void) { #ifdef CONFIG_PNP_DRV if (pnp) awe_unload_pnp(); #endif /* pnp */ _unload_awe(); } /* module interface */ #if defined(AWE_MODULE_SUPPORT) && defined(MODULE) int init_module(void) { return attach_awe(); } void cleanup_module(void) { unload_awe(); } #ifdef MODULE_PARM EXPORT_NO_SYMBOLS; MODULE_AUTHOR("Takashi Iwai <iwai@ww.uni-erlangen.de>"); MODULE_DESCRIPTION("SB AWE32/64 WaveTable driver"); MODULE_SUPPORTED_DEVICE("sound"); #endif #endif /* module */ #endif /* AWE_OBSOLETE_VOXWARE */ #endif /* linux */ /*================================================================ * FreeBSD interface *================================================================*/ #ifdef __FreeBSD__ #ifdef AWE_OBSOLETE_VOXWARE long attach_awe_obsolete(long mem_start, struct address_info *hw_config) { _attach_awe(); return 0; } int probe_awe_obsolete(struct address_info *hw_config) { return 1; } #else /* !obsolete */ /* new type interface */ void attach_awe(struct address_info *hw_config) { _attach_awe(); } int probe_awe(struct address_info *hw_config) { return 1; } #endif /* obsolete */ #endif /* FreeBSD */ /*================================================================ * clear sample tables *================================================================*/ static void awe_reset_samples(void) { int i; /* free all bank tables */ for (i = 0; i < AWE_MAX_PRESETS; i++) preset_table[i] = -1; free_tables(); current_sf_id = 0; locked_sf_id = 0; patch_opened = 0; } /*================================================================ * EMU register access *================================================================*/ /* select a given AWE32 pointer */ static int awe_ports[5]; static int port_setuped = FALSE; static int awe_cur_cmd = -1; #define awe_set_cmd(cmd) \ if (awe_cur_cmd != cmd) { OUTW(cmd, awe_ports[Pointer]); awe_cur_cmd = cmd; } /* store values to i/o port array */ static void setup_ports(int port1, int port2, int port3) { awe_ports[0] = port1; if (port2 == 0) port2 = port1 + 0x400; awe_ports[1] = port2; awe_ports[2] = port2 + 2; if (port3 == 0) port3 = port1 + 0x800; awe_ports[3] = port3; awe_ports[4] = port3 + 2; port_setuped = TRUE; } /* write 16bit data */ INLINE 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 */ INLINE 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 */ INLINE 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 */ INLINE 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); } #endif /* wait by loop */ /* write a word data */ INLINE static void awe_write_dram(unsigned short c) { awe_poke(AWE_SMLD, c); } #if defined(linux) && !defined(AWE_OBSOLETE_VOXWARE) /*================================================================ * port check / request * 0x620-623, 0xA20-A23, 0xE20-E23 *================================================================*/ static int awe_check_port(void) { if (! port_setuped) return 0; return (check_region(awe_ports[0], 4) || check_region(awe_ports[1], 4) || check_region(awe_ports[3], 4)); } static void awe_request_region(void) { if (! port_setuped) return; request_region(awe_ports[0], 4, "sound driver (AWE32)"); request_region(awe_ports[1], 4, "sound driver (AWE32)"); request_region(awe_ports[3], 4, "sound driver (AWE32)"); } static void 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); } #endif /* linux && !AWE_OBSOLETE_VOXWARE */ /*================================================================ * AWE32 initialization *================================================================*/ static void awe_initialize(void) { DEBUG(0,printk("AWE32: initializing..\n")); /* initialize hardware configuration */ awe_poke(AWE_HWCF1, 0x0059); awe_poke(AWE_HWCF2, 0x0020); /* disable audio; this seems to reduce a clicking noise a bit.. */ awe_poke(AWE_HWCF3, 0); /* initialize audio channels */ awe_init_audio(); /* initialize DMA */ awe_init_dma(); /* initialize init array */ awe_init_array(); /* check DRAM memory size */ awe_check_dram(); /* initialize the FM section of the AWE32 */ awe_init_fm(); /* set up voice envelopes */ awe_tweak(); /* enable audio */ awe_poke(AWE_HWCF3, 0x0004); /* set default values */ awe_init_ctrl_parms(TRUE); /* set equalizer */ awe_update_equalizer(); /* set reverb & chorus modes */ awe_update_reverb_mode(); awe_update_chorus_mode(); } /*================================================================ * AWE32 voice parameters *================================================================*/ /* initialize voice_info record */ static void awe_init_voice_info(awe_voice_info *vp) { vp->sf_id = 0; /* normal mode */ 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); /* turn on envelope */ awe_poke(AWE_DCYSUSV(voice), FX_COMB(fx, fx_lay, AWE_FX_ENV2_SUSTAIN, AWE_FX_ENV2_DECAY, vp->parm.voldcysus)); /* 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); 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; 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)); if (temp == 0) voices[voice].aaux = 0xff; else voices[voice].aaux = (-temp)&0xff; } } /* 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(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(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(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]) { BZERO(&channels[ch].fx, sizeof(channels[ch].fx)); BZERO(&channels[ch].fx_layer, 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->vrec = -1; cp->def_vrec = -1; } cp->bender = 0; /* zero tune skew */ cp->expression_vol = 127; cp->chan_press = 0; cp->sustained = 0; if (! ctrls[AWE_MD_KEEP_EFFECT]) { BZERO(&cp->fx, sizeof(cp->fx)); BZERO(&cp->fx_layer, 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 RET_ERROR(EBUSY); awe_busy = TRUE; /* set default mode */ awe_init_ctrl_parms(FALSE); atten_relative = TRUE; atten_offset = 0; drum_flags = DEFAULT_DRUM_FLAGS; playing_mode = AWE_PLAY_INDIRECT; /* reset voices & channels */ awe_reset(dev); patch_opened = 0; return 0; } /* close device: * reset all voices again (terminate sounds) */ static void awe_close(int dev) { awe_reset(dev); awe_busy = FALSE; } /* set miscellaneous mode parameters */ static void awe_init_ctrl_parms(int init_all) { int i; for (i = 0; i < AWE_MD_END; i++) { if (init_all || ctrl_parms[i].init_each_time) ctrls[i] = ctrl_parms[i].value; } } /* sequencer I/O control: */ static int awe_ioctl(int dev, unsigned int cmd, caddr_t arg) { switch (cmd) { case SNDCTL_SYNTH_INFO: if (playing_mode == AWE_PLAY_DIRECT) awe_info.nr_voices = awe_max_voices; else awe_info.nr_voices = AWE_MAX_CHANNELS; IOCTL_TO_USER((char*)arg, 0, &awe_info, sizeof(awe_info)); return 0; break; case SNDCTL_SEQ_RESETSAMPLES: awe_reset_samples(); awe_reset(dev); return 0; break; case SNDCTL_SEQ_PERCMODE: /* what's this? */ return 0; break; case SNDCTL_SYNTH_MEMAVL: return awe_mem_size - awe_free_mem_ptr() * 2; default: printk("AWE32: unsupported ioctl %d\n", cmd); return RET_ERROR(EINVAL); } } static int voice_in_range(int voice) { if (playing_mode == AWE_PLAY_DIRECT) { if (voice < 0 || voice >= awe_max_voices) return FALSE; } else { if (voice < 0 || voice >= AWE_MAX_CHANNELS) return FALSE; } return TRUE; } static void release_voice(int voice, int do_sustain) { if (IS_NO_SOUND(voice)) return; if (do_sustain && (voices[voice].cinfo->sustained == 127 || voices[voice].sostenuto == 127)) voices[voice].state = AWE_ST_SUSTAINED; else { awe_note_off(voice); awe_fx_init(voices[voice].ch); awe_voice_init(voice, FALSE); } } /* release all notes */ static void awe_note_off_all(int do_sustain) { int i; for (i = 0; i < awe_max_voices; i++) release_voice(i, do_sustain); } /* kill a voice: * not terminate, just release the voice. */ static int awe_kill_note(int dev, int voice, int note, int velocity) { int i, v2, key; DEBUG(2,printk("AWE32: [off(%d) nt=%d vl=%d]\n", voice, note, velocity)); if (! voice_in_range(voice)) return RET_ERROR(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 RET_ERROR(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 RET_ERROR(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 RET_ERROR(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; } /* search instrument from preset table with the specified bank */ static int awe_search_instr(int bank, int preset) { int i; limitvalue(preset, 0, AWE_MAX_PRESETS-1); for (i = preset_table[preset]; i >= 0; i = infos[i].next_bank) { if (infos[i].bank == bank) return i; } return -1; } /* 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 RET_ERROR(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; int def_bank; if (! voice_in_range(voice)) return RET_ERROR(EINVAL); if (instr_no < 0 || instr_no >= AWE_MAX_PRESETS) return RET_ERROR(EINVAL); cinfo = &channels[voice]; if (MULTI_LAYER_MODE() && IS_DRUM_CHANNEL(voice)) def_bank = AWE_DRUM_BANK; /* always search drumset */ else def_bank = cinfo->bank; cinfo->vrec = -1; cinfo->def_vrec = -1; cinfo->vrec = awe_search_instr(def_bank, instr_no); if (def_bank == AWE_DRUM_BANK) /* search default drumset */ cinfo->def_vrec = awe_search_instr(def_bank, ctrls[AWE_MD_DEF_DRUM]); else /* search default preset */ cinfo->def_vrec = awe_search_instr(ctrls[AWE_MD_DEF_BANK], instr_no); if (cinfo->vrec < 0 && cinfo->def_vrec < 0) { DEBUG(1,printk("AWE32 Warning: can't find instrument %d\n", instr_no)); } cinfo->instr = instr_no; DEBUG(2,printk("AWE32: [program(%d) %d/%d]\n", voice, instr_no, def_bank)); 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("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")); 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; 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)); } #ifndef AWE_NO_PATCHMGR /* patch manager */ static int awe_patchmgr(int dev, struct patmgr_info *rec) { printk("AWE32 Warning: patch manager control not supported\n"); return 0; } #endif /* pitch wheel change: 0-16384 */ static void awe_bender(int dev, int voice, int value) { awe_chan_info *cinfo; if (! voice_in_range(voice)) return; if (playing_mode == AWE_PLAY_MULTI2) { voice = voice_alloc->map[voice] >> 8; if (voice < 0 || voice >= AWE_MAX_CHANNELS) return; } /* convert to zero centered value */ cinfo = &channels[voice]; cinfo->bender = value - 8192; DEBUG(2,printk("AWE32: [bend(%d) %d]\n", voice, cinfo->bender)); awe_voice_change(voice, awe_set_voice_pitch); } /*---------------------------------------------------------------- * load a sound patch: * three types of patches are accepted: AWE, GUS, and SYSEX. *----------------------------------------------------------------*/ static int awe_load_patch(int dev, int format, const char *addr, int offs, int count, int pmgr_flag) { awe_patch_info patch; int rc = 0; #ifdef AWE_HAS_GUS_COMPATIBILITY if (format == GUS_PATCH) { return awe_load_guspatch(addr, offs, count, pmgr_flag); } else #endif if (format == SYSEX_PATCH) { /* no system exclusive message supported yet */ return 0; } else if (format != AWE_PATCH) { printk("AWE32 Error: Invalid patch format (key) 0x%x\n", format); return RET_ERROR(EINVAL); } if (count < AWE_PATCH_INFO_SIZE) { printk("AWE32 Error: Patch header too short\n"); return RET_ERROR(EINVAL); } COPY_FROM_USER(((char*)&patch) + offs, addr, offs, AWE_PATCH_INFO_SIZE - offs); count -= AWE_PATCH_INFO_SIZE; if (count < patch.len) { printk("AWE32: sample: Patch record too short (%d<%d)\n", count, patch.len); return RET_ERROR(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_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("AWE32 Error: unknown patch format type %d\n", patch.type); rc = RET_ERROR(EINVAL); } return rc; } /* create an sflist record */ static int awe_create_sf(int type, char *name) { sf_list *rec; /* terminate sounds */ awe_reset(0); if (current_sf_id >= max_sfs) { #ifndef AWE_DYNAMIC_BUFFER return 1; #else int newsize = max_sfs + AWE_MAX_SF_LISTS; sf_list *newlist = realloc_block(sflists, sizeof(sf_list)*max_sfs, sizeof(sf_list)*newsize); if (newlist == NULL) return 1; sflists = newlist; max_sfs = newsize; #endif /* dynamic buffer */ } rec = &sflists[current_sf_id]; 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 = -1; rec->samples = -1; #ifdef AWE_ALLOW_SAMPLE_SHARING rec->shared = 0; if (name) memcpy(rec->name, name, AWE_PATCH_NAME_LEN); else strcpy(rec->name, "*TEMPORARY*"); if (current_sf_id > 0 && 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 */ int i; for (i = current_sf_id; i > 0; i--) { if (is_identical_name(rec->name, i)) { rec->shared = i; break; } } } } #endif /* allow sharing */ current_sf_id++; 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[6] = { ASC_TO_KEY('A'), ASC_TO_KEY('W'), ASC_TO_KEY('E'), AWE_MAJOR_VERSION, AWE_MINOR_VERSION, AWE_TINY_VERSION, }; if (MEMCMP(name, id_head, 6) == 0) return TRUE; return FALSE; } /* check if the given name matches to the existing list */ static int is_identical_name(unsigned char *name, int sf) { char *id = sflists[sf-1].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(awe_voice_list *rec) { int j, sf_id; sf_list *sf; /* search for all sharing lists */ for (sf_id = rec->v.sf_id; sf_id > 0 && sf_id <= current_sf_id; sf_id = sf->shared) { sf = &sflists[sf_id - 1]; for (j = sf->infos; j >= 0; j = infos[j].next) { awe_voice_list *p = &infos[j]; 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 */ /* open patch; create sf list and set opened flag */ static int awe_open_patch(awe_patch_info *patch, const char *addr, int count) { awe_open_parm parm; int shared; COPY_FROM_USER(&parm, addr, AWE_PATCH_INFO_SIZE, sizeof(parm)); shared = FALSE; #ifdef AWE_ALLOW_SAMPLE_SHARING if (current_sf_id > 0 && (parm.type & AWE_PAT_SHARED) != 0) { /* is the previous font the same font? */ if (is_identical_name(parm.name, current_sf_id)) { /* 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("AWE32: can't open: failed to alloc new list\n"); return RET_ERROR(ENOSPC); } } patch_opened = TRUE; return current_sf_id; } /* check if the patch is already opened */ static int check_patch_opened(int type, char *name) { if (! patch_opened) { if (awe_create_sf(type, name)) { printk("AWE32: failed to alloc new list\n"); return RET_ERROR(ENOSPC); } patch_opened = TRUE; return current_sf_id; } return current_sf_id; } /* close the patch; if no voice is loaded, remove the patch */ static int awe_close_patch(awe_patch_info *patch, const char *addr, int count) { if (patch_opened && current_sf_id > 0) { /* if no voice is loaded, release the current patch */ if (sflists[current_sf_id-1].infos == -1) 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 *addr, int count) { if (current_sf_id > 0 && current_sf_id > locked_sf_id) awe_remove_samples(current_sf_id - 1); return 0; } /* allocate voice info list records */ static int alloc_new_info(int nvoices) { int newsize, free_info; awe_voice_list *newlist; free_info = awe_free_info(); if (free_info + nvoices >= max_infos) { #ifndef AWE_DYNAMIC_BUFFER printk("AWE32: can't alloc info table\n"); return RET_ERROR(ENOSPC); #else do { newsize = max_infos + AWE_MAX_INFOS; } while (free_info + nvoices >= newsize); newlist = realloc_block(infos, sizeof(awe_voice_list)*max_infos, sizeof(awe_voice_list)*newsize); if (newlist == NULL) { printk("AWE32: can't alloc info table\n"); return RET_ERROR(ENOSPC); } infos = newlist; max_infos = newsize; #endif } return 0; } /* allocate sample info list records */ static int alloc_new_sample(void) { int newsize, free_sample; awe_sample_list *newlist; free_sample = awe_free_sample(); if (free_sample >= max_samples) { #ifndef AWE_DYNAMIC_BUFFER printk("AWE32: can't alloc sample table\n"); return RET_ERROR(ENOSPC); #else newsize = max_samples + AWE_MAX_SAMPLES; newlist = realloc_block(samples, sizeof(awe_sample_list)*max_samples, sizeof(awe_sample_list)*newsize); if (newlist == NULL) { printk("AWE32: can't alloc sample table\n"); return RET_ERROR(ENOSPC); } samples = newlist; max_samples = newsize; #endif } return 0; } /* load voice map */ static int awe_load_map(awe_patch_info *patch, const char *addr, int count) { awe_voice_map map; awe_voice_list *rec; int p, free_info; /* get the link info */ if (count < sizeof(map)) { printk("AWE32 Error: invalid patch info length\n"); return RET_ERROR(EINVAL); } COPY_FROM_USER(&map, addr, AWE_PATCH_INFO_SIZE, sizeof(map)); /* check if the identical mapping already exists */ p = awe_search_instr(map.map_bank, map.map_instr); for (; p >= 0; p = infos[p].next_instr) { if (p >= 0 && infos[p].type == V_ST_MAPPED && infos[p].v.low == map.map_key && infos[p].v.start == map.src_instr && infos[p].v.end == map.src_bank && infos[p].v.fixkey == map.src_key) return 0; /* already present! */ } if (check_patch_opened(AWE_PAT_TYPE_MAP, NULL) < 0) return RET_ERROR(ENOSPC); if (alloc_new_info(1) < 0) return RET_ERROR(ENOSPC); free_info = awe_free_info(); rec = &infos[free_info]; 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; rec->v.sf_id = current_sf_id; add_info_list(free_info); add_sf_info(free_info); 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 *addr, int count) { #ifdef AWE_ALLOW_SAMPLE_SHARING awe_voice_map map; int p; if (! patch_opened) return RET_ERROR(EINVAL); /* get the link info */ if (count < sizeof(map)) { printk("AWE32 Error: invalid patch info length\n"); return RET_ERROR(EINVAL); } COPY_FROM_USER(&map, addr, AWE_PATCH_INFO_SIZE, sizeof(map)); /* check if the identical mapping already exists */ p = awe_search_instr(map.src_bank, map.src_instr); for (; p >= 0; p = infos[p].next_instr) { if (p >= 0 && infos[p].type == V_ST_NORMAL && is_identical_id(infos[p].v.sf_id, current_sf_id) && infos[p].v.low <= map.src_key && infos[p].v.high >= map.src_key) return 0; /* already present! */ } #endif /* allow sharing */ return RET_ERROR(EINVAL); } #endif /* probe sample in the current list -- nothing to be loaded */ static int awe_probe_data(awe_patch_info *patch, const char *addr, int count) { #ifdef AWE_ALLOW_SAMPLE_SHARING if (! patch_opened) return RET_ERROR(EINVAL); /* search the specified sample by optarg */ if (search_sample_index(current_sf_id, patch->optarg, 0) >= 0) return 0; #endif /* allow sharing */ return RET_ERROR(EINVAL); } /* load voice information data */ static int awe_load_info(awe_patch_info *patch, const char *addr, int count) { int offset; awe_voice_rec_hdr hdr; int i; int total_size; if (count < AWE_VOICE_REC_SIZE) { printk("AWE32 Error: invalid patch info length\n"); return RET_ERROR(EINVAL); } offset = AWE_PATCH_INFO_SIZE; COPY_FROM_USER((char*)&hdr, addr, offset, AWE_VOICE_REC_SIZE); offset += AWE_VOICE_REC_SIZE; if (hdr.nvoices <= 0 || hdr.nvoices >= 100) { printk("AWE32 Error: Illegal voice number %d\n", hdr.nvoices); return RET_ERROR(EINVAL); } total_size = AWE_VOICE_REC_SIZE + AWE_VOICE_INFO_SIZE * hdr.nvoices; if (count < total_size) { printk("AWE32 Error: patch length(%d) is smaller than nvoices(%d)\n", count, hdr.nvoices); return RET_ERROR(EINVAL); } if (check_patch_opened(AWE_PAT_TYPE_MISC, NULL) < 0) return RET_ERROR(ENOSPC); #if 0 /* it looks like not so useful.. */ /* check if the same preset already exists in the info list */ for (i = sflists[current_sf_id-1].infos; i >= 0; i = infos[i].next) { if (infos[i].disabled) continue; if (infos[i].bank == hdr.bank && infos[i].instr == hdr.instr) { /* in exclusive mode, do skip loading this */ if (hdr.write_mode == AWE_WR_EXCLUSIVE) return 0; /* in replace mode, disable the old data */ else if (hdr.write_mode == AWE_WR_REPLACE) infos[i].disabled = TRUE; } } if (hdr.write_mode == AWE_WR_REPLACE) rebuild_preset_list(); #endif if (alloc_new_info(hdr.nvoices) < 0) return RET_ERROR(ENOSPC); for (i = 0; i < hdr.nvoices; i++) { int rec = awe_free_info(); infos[rec].bank = hdr.bank; infos[rec].instr = hdr.instr; infos[rec].type = V_ST_NORMAL; infos[rec].disabled = FALSE; /* copy awe_voice_info parameters */ COPY_FROM_USER(&infos[rec].v, addr, offset, AWE_VOICE_INFO_SIZE); offset += AWE_VOICE_INFO_SIZE; infos[rec].v.sf_id = current_sf_id; #ifdef AWE_ALLOW_SAMPLE_SHARING if (sflists[current_sf_id-1].shared) { if (info_duplicated(&infos[rec])) continue; } #endif /* allow sharing */ if (infos[rec].v.mode & AWE_MODE_INIT_PARM) awe_init_voice_parm(&infos[rec].v.parm); awe_set_sample(&infos[rec].v); add_info_list(rec); add_sf_info(rec); } return 0; } /* load wave sample data */ static int awe_load_data(awe_patch_info *patch, const char *addr, int count) { int offset, size; int rc, free_sample; awe_sample_info tmprec, *rec; if (check_patch_opened(AWE_PAT_TYPE_MISC, NULL) < 0) return RET_ERROR(ENOSPC); size = (count - AWE_SAMPLE_INFO_SIZE) / 2; offset = AWE_PATCH_INFO_SIZE; COPY_FROM_USER(&tmprec, addr, offset, AWE_SAMPLE_INFO_SIZE); offset += AWE_SAMPLE_INFO_SIZE; if (size != tmprec.size) { printk("AWE32: load: sample size differed (%d != %d)\n", tmprec.size, size); return RET_ERROR(EINVAL); } if (search_sample_index(current_sf_id, tmprec.sample, 0) >= 0) { #ifdef AWE_ALLOW_SAMPLE_SHARING /* if shared sample, skip this data */ if (sflists[current_sf_id-1].type & AWE_PAT_SHARED) return 0; #endif /* allow sharing */ DEBUG(1,printk("AWE32: sample data %d already present\n", tmprec.sample)); return RET_ERROR(EINVAL); } if (alloc_new_sample() < 0) return RET_ERROR(ENOSPC); free_sample = awe_free_sample(); rec = &samples[free_sample].v; *rec = tmprec; if (rec->size > 0) if ((rc = awe_write_wave_data(addr, offset, rec, -1)) != 0) return rc; rec->sf_id = current_sf_id; add_sf_sample(free_sample); return 0; } /* replace wave sample data */ static int awe_replace_data(awe_patch_info *patch, const char *addr, int count) { int offset; int size; int rc, i; int channels; awe_sample_info cursmp; int save_mem_ptr; if (! patch_opened) { printk("AWE32: replace: patch not opened\n"); return RET_ERROR(EINVAL); } size = (count - AWE_SAMPLE_INFO_SIZE) / 2; offset = AWE_PATCH_INFO_SIZE; COPY_FROM_USER(&cursmp, addr, offset, AWE_SAMPLE_INFO_SIZE); offset += AWE_SAMPLE_INFO_SIZE; if (cursmp.size == 0 || size != cursmp.size) { printk("AWE32: replace: illegal sample size (%d!=%d)\n", cursmp.size, size); return RET_ERROR(EINVAL); } channels = patch->optarg; if (channels <= 0 || channels > AWE_NORMAL_VOICES) { printk("AWE32: replace: illegal channels %d\n", channels); return RET_ERROR(EINVAL); } for (i = sflists[current_sf_id-1].samples; i >= 0; i = samples[i].next) { if (samples[i].v.sample == cursmp.sample) break; } if (i < 0) { printk("AWE32: replace: cannot find existing sample data %d\n", cursmp.sample); return RET_ERROR(EINVAL); } if (samples[i].v.size != cursmp.size) { printk("AWE32: replace: exiting size differed (%d!=%d)\n", samples[i].v.size, cursmp.size); return RET_ERROR(EINVAL); } save_mem_ptr = awe_free_mem_ptr(); sflists[current_sf_id-1].mem_ptr = samples[i].v.start - awe_mem_start; MEMCPY(&samples[i].v, &cursmp, sizeof(cursmp)); if ((rc = awe_write_wave_data(addr, offset, &samples[i].v, channels)) != 0) return rc; sflists[current_sf_id-1].mem_ptr = save_mem_ptr; samples[i].v.sf_id = current_sf_id; return 0; } /*----------------------------------------------------------------*/ static const char *readbuf_addr; static int readbuf_offs; static int readbuf_flags; #ifdef MALLOC_LOOP_DATA static unsigned short *readbuf_loop; static int readbuf_loopstart, readbuf_loopend; #endif /* initialize read buffer */ static int readbuf_init(const char *addr, int offset, awe_sample_info *sp) { #ifdef MALLOC_LOOP_DATA readbuf_loop = NULL; readbuf_loopstart = sp->loopstart; readbuf_loopend = sp->loopend; if (sp->mode_flags & (AWE_SAMPLE_BIDIR_LOOP|AWE_SAMPLE_REVERSE_LOOP)) { int looplen = sp->loopend - sp->loopstart; readbuf_loop = my_malloc(looplen * 2); if (readbuf_loop == NULL) { printk("AWE32: can't malloc temp buffer\n"); return RET_ERROR(ENOSPC); } } #endif 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_BYTE_FROM_USER(cc, readbuf_addr, readbuf_offs + pos); c = cc << 8; /* convert 8bit -> 16bit */ } else { GET_SHORT_FROM_USER(c, readbuf_addr, readbuf_offs + pos * 2); } if (readbuf_flags & AWE_SAMPLE_UNSIGNED) c ^= 0x8000; /* unsigned -> signed */ #ifdef MALLOC_LOOP_DATA /* write on cache for reverse loop */ if (readbuf_flags & (AWE_SAMPLE_BIDIR_LOOP|AWE_SAMPLE_REVERSE_LOOP)) { if (pos >= readbuf_loopstart && pos < readbuf_loopend) readbuf_loop[pos - readbuf_loopstart] = c; } #endif return c; } #ifdef MALLOC_LOOP_DATA /* read from cache */ static unsigned short readbuf_word_cache(int pos) { if (pos >= readbuf_loopstart && pos < readbuf_loopend) return readbuf_loop[pos - readbuf_loopstart]; return 0; } static void readbuf_end(void) { if (readbuf_loop) { my_free(readbuf_loop); } readbuf_loop = NULL; } #else #define readbuf_word_cache readbuf_word #define readbuf_end() /**/ #endif /*----------------------------------------------------------------*/ #define BLANK_LOOP_START 8 #define BLANK_LOOP_END 40 #define BLANK_LOOP_SIZE 48 /* loading onto memory */ static int awe_write_wave_data(const char *addr, int offset, awe_sample_info *sp, int channels) { int i, truesize, dram_offset; 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) truesize += sp->loopend - sp->loopstart; if (sp->mode_flags & AWE_SAMPLE_NO_BLANK) truesize += BLANK_LOOP_SIZE; if (awe_free_mem_ptr() + truesize >= awe_mem_size/2) { DEBUG(-1,printk("AWE32 Error: Sample memory full\n")); return RET_ERROR(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 RET_ERROR(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; } } sflists[current_sf_id-1].mem_ptr += truesize; awe_close_dram(); /* initialize FM */ awe_init_fm(); return 0; } /*----------------------------------------------------------------*/ #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 *addr, int offs, int size, int pmgr_flag) { struct patch_info patch; awe_voice_info *rec; awe_sample_info *smp; int sizeof_patch; int note, free_sample, free_info; int rc; sizeof_patch = (int)((long)&patch.data[0] - (long)&patch); /* header size */ if (size < sizeof_patch) { printk("AWE32 Error: Patch header too short\n"); return RET_ERROR(EINVAL); } COPY_FROM_USER(((char*)&patch) + offs, addr, offs, sizeof_patch - offs); size -= sizeof_patch; if (size < patch.len) { printk("AWE32 Warning: Patch record too short (%d<%d)\n", size, patch.len); return RET_ERROR(EINVAL); } if (check_patch_opened(AWE_PAT_TYPE_GUS, NULL) < 0) return RET_ERROR(ENOSPC); if (alloc_new_sample() < 0) return RET_ERROR(ENOSPC); if (alloc_new_info(1)) return RET_ERROR(ENOSPC); free_sample = awe_free_sample(); smp = &samples[free_sample].v; smp->sample = free_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, smp, -1)) != 0) return rc; smp->sf_id = current_sf_id; add_sf_sample(free_sample); /* set up voice info */ free_info = awe_free_info(); rec = &infos[free_info].v; awe_init_voice_info(rec); rec->sample = free_sample; /* 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_attack(attack) << 8) | calc_parm_hold(hold); 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 */ infos[free_info].bank = ctrls[AWE_MD_GUS_BANK]; infos[free_info].instr = patch.instr_no; infos[free_info].disabled = FALSE; infos[free_info].type = V_ST_NORMAL; infos[free_info].v.sf_id = current_sf_id; add_info_list(free_info); add_sf_info(free_info); /* set the voice index */ awe_set_sample(rec); return 0; } #endif /* AWE_HAS_GUS_COMPATIBILITY */ /*---------------------------------------------------------------- * sample and voice list handlers *----------------------------------------------------------------*/ /* append this to the sf list */ static void add_sf_info(int rec) { int sf_id = infos[rec].v.sf_id; if (sf_id <= 0) return; sf_id--; if (sflists[sf_id].infos < 0) sflists[sf_id].infos = rec; else { int i, prev; prev = sflists[sf_id].infos; while ((i = infos[prev].next) >= 0) prev = i; infos[prev].next = rec; } infos[rec].next = -1; sflists[sf_id].num_info++; } /* prepend this sample to sf list */ static void add_sf_sample(int rec) { int sf_id = samples[rec].v.sf_id; if (sf_id <= 0) return; sf_id--; samples[rec].next = sflists[sf_id].samples; sflists[sf_id].samples = rec; sflists[sf_id].num_sample++; } /* purge the old records which don't belong with the same file id */ static void purge_old_list(int rec, int next) { infos[rec].next_instr = next; if (infos[rec].bank == AWE_DRUM_BANK) { /* remove samples with the same note range */ int cur, *prevp = &infos[rec].next_instr; int low = infos[rec].v.low; int high = infos[rec].v.high; for (cur = next; cur >= 0; cur = infos[cur].next_instr) { if (infos[cur].v.low == low && infos[cur].v.high == high && ! is_identical_id(infos[cur].v.sf_id, infos[rec].v.sf_id)) *prevp = infos[cur].next_instr; prevp = &infos[cur].next_instr; } } else { if (! is_identical_id(infos[next].v.sf_id, infos[rec].v.sf_id)) infos[rec].next_instr = -1; } } /* prepend to top of the preset table */ static void add_info_list(int rec) { int *prevp, cur; int instr; int bank; if (infos[rec].disabled) return; instr = infos[rec].instr; bank = infos[rec].bank; limitvalue(instr, 0, AWE_MAX_PRESETS-1); prevp = &preset_table[instr]; cur = *prevp; while (cur >= 0) { /* search the first record with the same bank number */ if (infos[cur].bank == bank) { /* replace the list with the new record */ infos[rec].next_bank = infos[cur].next_bank; *prevp = rec; purge_old_list(rec, cur); return; } prevp = &infos[cur].next_bank; cur = infos[cur].next_bank; } /* this is the first bank record.. just add this */ infos[rec].next_instr = -1; infos[rec].next_bank = preset_table[instr]; preset_table[instr] = rec; } /* remove samples later than the specified sf_id */ static void awe_remove_samples(int sf_id) { if (sf_id <= 0) { awe_reset_samples(); return; } /* already removed? */ if (current_sf_id <= sf_id) return; 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) { int i, j; for (i = 0; i < AWE_MAX_PRESETS; i++) preset_table[i] = -1; for (i = 0; i < current_sf_id; i++) { for (j = sflists[i].infos; j >= 0; j = infos[j].next) add_info_list(j); } } /* compare the given sf_id pair */ static int is_identical_id(int id1, int id2) { if (id1 == id2) return TRUE; if (id1 <= 0 || id2 <= 0) /* this must not happen.. */ return FALSE; #ifdef AWE_ALLOW_SAMPLE_SHARING { /* compare with the sharing id */ int i; if (id1 < id2) { /* make sure id1 > id2 */ int tmp; tmp = id1; id1 = id2; id2 = tmp; } for (i = sflists[id1-1].shared; i > 0 && i <= current_sf_id; i = sflists[i-1].shared) { if (i == id2) return TRUE; } } #endif /* allow sharing */ return FALSE; } /* search the sample index matching with the given sample id */ static int search_sample_index(int sf, int sample, int level) { int i; if (sf <= 0 || sf > current_sf_id) return -1; /* this must not happen */ for (i = sflists[sf-1].samples; i >= 0; i = samples[i].next) { if (samples[i].v.sample == sample) return i; } #ifdef AWE_ALLOW_SAMPLE_SHARING if ((i = sflists[sf-1].shared) > 0 && i <= current_sf_id) { /* search recursively */ if (level > current_sf_id) return -1; /* strange sharing loop.. quit */ return search_sample_index(i, sample, level + 1); } #endif return -1; } /* search the specified sample */ static short awe_set_sample(awe_voice_info *vp) { int i; vp->index = -1; if ((i = search_sample_index(vp->sf_id, vp->sample, 0)) < 0) return -1; /* set the actual sample offsets */ vp->start += samples[i].v.start; vp->end += samples[i].v.end; vp->loopstart += samples[i].v.loopstart; vp->loopend += samples[i].v.loopend; /* copy mode flags */ vp->mode = samples[i].v.mode_flags; /* set index */ vp->index = i; return i; } /*---------------------------------------------------------------- * voice allocation *----------------------------------------------------------------*/ /* look for all voices associated with the specified note & velocity */ static int awe_search_multi_voices(int rec, int note, int velocity, awe_voice_info **vlist) { int nvoices; nvoices = 0; for (; rec >= 0; rec = infos[rec].next_instr) { if (note >= infos[rec].v.low && note <= infos[rec].v.high && velocity >= infos[rec].v.vellow && velocity <= infos[rec].v.velhigh) { if (infos[rec].type == V_ST_MAPPED) { /* mapper */ vlist[0] = &infos[rec].v; return -1; } vlist[nvoices++] = &infos[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 vrec, int def_vrec, int *note, int velocity, awe_voice_info **vlist, int level) { int nvoices; nvoices = awe_search_multi_voices(vrec, *note, velocity, vlist); if (nvoices == 0) nvoices = awe_search_multi_voices(def_vrec, *note, velocity, vlist); if (nvoices < 0) { /* mapping */ int preset = vlist[0]->start; int bank = vlist[0]->end; int key = vlist[0]->fixkey; if (level > 5) { printk("AWE32: too deep mapping level\n"); return 0; } vrec = awe_search_instr(bank, preset); if (bank == AWE_DRUM_BANK) def_vrec = awe_search_instr(bank, 0); else def_vrec = awe_search_instr(0, preset); if (key >= 0) *note = key; return really_alloc_voices(vrec, def_vrec, note, velocity, vlist, level+1); } 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; awe_voice_info *vlist[AWE_MAX_VOICES]; if (channels[ch].vrec < 0 && channels[ch].def_vrec < 0) awe_set_instr(0, ch, channels[ch].instr); /* check the possible voices; note may be changeable if mapped */ nvoices = really_alloc_voices(channels[ch].vrec, channels[ch].def_vrec, ¬e, velocity, vlist, 0); /* 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 the best voice from the specified status condition */ static int search_best_voice(int condition) { int i, time, best; int vtarget = 0xffff, min_vtarget = 0xffff; best = -1; time = current_alloc_time + 1; for (i = 0; i < awe_max_voices; i++) { if (! (voices[i].state & condition)) continue; #ifdef AWE_CHECK_VTARGET /* get current volume */ vtarget = (awe_peek_dw(AWE_VTFT(i)) >> 16) & 0xffff; #endif if (best < 0 || vtarget < min_vtarget || (vtarget == min_vtarget && voices[i].time < time)) { best = i; time = voices[i].time; min_vtarget = vtarget; } } /* clear voice */ if (best >= 0) { if (voices[best].state != AWE_ST_OFF) awe_terminate(best); awe_voice_init(best, TRUE); } return best; } /* search an empty voice. if no empty voice is found, at least terminate a voice */ static int awe_clear_voice(void) { int best; /* looking for the oldest empty voice */ if ((best = search_best_voice(AWE_ST_OFF)) >= 0) return best; if ((best = search_best_voice(AWE_ST_RELEASED)) >= 0) return best; /* looking for the oldest sustained voice */ if ((best = search_best_voice(AWE_ST_SUSTAINED)) >= 0) return best; if (MULTI_LAYER_MODE() && ctrls[AWE_MD_CHN_PRIOR]) { int ch = -1; int time = current_alloc_time + 1; int i; /* looking for the voices from high channel (except drum ch) */ for (i = 0; i < awe_max_voices; i++) { if (IS_DRUM_CHANNEL(voices[i].ch)) continue; if (voices[i].ch < ch) continue; if (voices[i].state != AWE_ST_MARK && (voices[i].ch > ch || voices[i].time < time)) { best = i; time = voices[i].time; ch = voices[i].ch; } } } if (best < 0) best = search_best_voice(~AWE_ST_MARK); if (best >= 0) return best; 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; awe_voice_info *vlist[AWE_MAX_VOICES]; ch = voices[voice].ch; if (channels[ch].vrec < 0 && channels[ch].def_vrec < 0) awe_set_instr(0, ch, channels[ch].instr); nvoices = really_alloc_voices(voices[voice].cinfo->vrec, voices[voice].cinfo->def_vrec, ¬e, velocity, vlist, 0); 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, caddr_t arg); static int my_mixerdev = -1; static struct mixer_operations awe_mixer_operations = { #ifndef __FreeBSD__ "AWE32", #endif "AWE32 Equalizer", awe_mixer_ioctl, }; static void 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, caddr_t arg) { int i, level, value; if (((cmd >> 8) & 0xff) != 'M') return RET_ERROR(EINVAL); level = (int)IOCTL_IN(arg); level = ((level & 0xff) + (level >> 8)) / 2; DEBUG(0,printk("AWEMix: cmd=%x val=%d\n", cmd & 0xff, level)); if (IO_WRITE_CHECK(cmd)) { 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; } return IOCTL_OUT(arg, level); } #endif /* CONFIG_AWE32_MIXER */ /*================================================================ * initialization of AWE32 *================================================================*/ /* 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 (awe_mem_size <= 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; } return RET_ERROR(ENOSPC); } /* 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; } } } /*================================================================ * detect presence of AWE32 and check memory size *================================================================*/ /* detect emu8000 chip on the specified address; from VV's guide */ static int 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 awe_detect(void) { int base; if (port_setuped) /* already initialized by PnP */ return 1; if (awe_port) /* use default i/o port value */ setup_ports(awe_port, 0, 0); else { /* probe it */ for (base = 0x620; base <= 0x680; base += 0x20) if (awe_detect_base(base)) return 1; DEBUG(0,printk("AWE32 not found\n")); return 0; } return 1; } /*================================================================ * check dram size on AWE board *================================================================*/ /* any three numbers you like */ #define UNIQUE_ID1 0x1234 #define UNIQUE_ID2 0x4321 #define UNIQUE_ID3 0xFFFF static void awe_check_dram(void) { if (awe_present) /* already initialized */ return; if (awe_mem_size >= 0) { /* given by config file or module option */ awe_mem_size *= 1024; /* convert to Kbytes */ return; } awe_open_dram_for_check(); awe_mem_size = 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 (awe_mem_size < 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; awe_mem_size += 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 + awe_mem_size*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 + awe_mem_size*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", awe_mem_size)); /* convert to Kbytes */ awe_mem_size *= 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 *addr, int count) { if (patch->optarg < AWE_CHORUS_PREDEFINED || patch->optarg >= AWE_CHORUS_NUMBERS) { printk("AWE32 Error: illegal chorus mode %d for uploading\n", patch->optarg); return RET_ERROR(EINVAL); } if (count < sizeof(awe_chorus_fx_rec)) { printk("AWE32 Error: too short chorus fx parameters\n"); return RET_ERROR(EINVAL); } COPY_FROM_USER(&chorus_parm[patch->optarg], addr, AWE_PATCH_INFO_SIZE, sizeof(awe_chorus_fx_rec)); 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 *addr, int count) { if (patch->optarg < AWE_REVERB_PREDEFINED || patch->optarg >= AWE_REVERB_NUMBERS) { printk("AWE32 Error: illegal reverb mode %d for uploading\n", patch->optarg); return RET_ERROR(EINVAL); } if (count < sizeof(awe_reverb_fx_rec)) { printk("AWE32 Error: too short reverb fx parameters\n"); return RET_ERROR(EINVAL); } COPY_FROM_USER(&reverb_parm[patch->optarg], addr, AWE_PATCH_INFO_SIZE, sizeof(awe_reverb_fx_rec)); 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, caddr_t 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 = { {"AWE Midi Emu", 0, 0, SNDCARD_SB}, NULL /*&std_midi_synth*/, {0}, /* input_info */ awe_midi_open, /*open*/ awe_midi_close, /*close*/ awe_midi_ioctl, /*ioctl*/ awe_midi_outputc, /*outputc*/ NULL /*start_read*/, NULL /*end_read*/, NULL, /* kick */ NULL, /* command */ }; static int my_mididev = -1; static void 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 = 0, finetune = 0; static int xg_mapping = TRUE; static int xg_bankmode = 0; /* 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; BZERO(curst.buf, 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, caddr_t 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 */ #endif /* CONFIG_AWE32_SYNTH */ |