Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * synth callback routines for Emu10k1 |
| 3 | * |
| 4 | * Copyright (C) 2000 Takashi Iwai <tiwai@suse.de> |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License as published by |
| 8 | * the Free Software Foundation; either version 2 of the License, or |
| 9 | * (at your option) any later version. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 14 | * GNU General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU General Public License |
| 17 | * along with this program; if not, write to the Free Software |
| 18 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 19 | */ |
| 20 | |
| 21 | #include "emu10k1_synth_local.h" |
| 22 | #include <sound/asoundef.h> |
| 23 | |
| 24 | /* voice status */ |
| 25 | enum { |
| 26 | V_FREE=0, V_OFF, V_RELEASED, V_PLAYING, V_END |
| 27 | }; |
| 28 | |
| 29 | /* Keeps track of what we are finding */ |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 30 | struct best_voice { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 31 | unsigned int time; |
| 32 | int voice; |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 33 | }; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | |
| 35 | /* |
| 36 | * prototypes |
| 37 | */ |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 38 | static void lookup_voices(struct snd_emux *emu, struct snd_emu10k1 *hw, |
| 39 | struct best_voice *best, int active_only); |
| 40 | static struct snd_emux_voice *get_voice(struct snd_emux *emu, |
| 41 | struct snd_emux_port *port); |
| 42 | static int start_voice(struct snd_emux_voice *vp); |
| 43 | static void trigger_voice(struct snd_emux_voice *vp); |
| 44 | static void release_voice(struct snd_emux_voice *vp); |
| 45 | static void update_voice(struct snd_emux_voice *vp, int update); |
| 46 | static void terminate_voice(struct snd_emux_voice *vp); |
| 47 | static void free_voice(struct snd_emux_voice *vp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 48 | |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 49 | static void set_fmmod(struct snd_emu10k1 *hw, struct snd_emux_voice *vp); |
| 50 | static void set_fm2frq2(struct snd_emu10k1 *hw, struct snd_emux_voice *vp); |
| 51 | static void set_filterQ(struct snd_emu10k1 *hw, struct snd_emux_voice *vp); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 52 | |
| 53 | /* |
| 54 | * Ensure a value is between two points |
| 55 | * macro evaluates its args more than once, so changed to upper-case. |
| 56 | */ |
| 57 | #define LIMITVALUE(x, a, b) do { if ((x) < (a)) (x) = (a); else if ((x) > (b)) (x) = (b); } while (0) |
| 58 | #define LIMITMAX(x, a) do {if ((x) > (a)) (x) = (a); } while (0) |
| 59 | |
| 60 | |
| 61 | /* |
| 62 | * set up operators |
| 63 | */ |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 64 | static struct snd_emux_operators emu10k1_ops = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 65 | .owner = THIS_MODULE, |
| 66 | .get_voice = get_voice, |
| 67 | .prepare = start_voice, |
| 68 | .trigger = trigger_voice, |
| 69 | .release = release_voice, |
| 70 | .update = update_voice, |
| 71 | .terminate = terminate_voice, |
| 72 | .free_voice = free_voice, |
| 73 | .sample_new = snd_emu10k1_sample_new, |
| 74 | .sample_free = snd_emu10k1_sample_free, |
| 75 | }; |
| 76 | |
| 77 | void |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 78 | snd_emu10k1_ops_setup(struct snd_emux *emu) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 79 | { |
| 80 | emu->ops = emu10k1_ops; |
| 81 | } |
| 82 | |
| 83 | |
| 84 | /* |
| 85 | * get more voice for pcm |
| 86 | * |
| 87 | * terminate most inactive voice and give it as a pcm voice. |
| 88 | */ |
| 89 | int |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 90 | snd_emu10k1_synth_get_voice(struct snd_emu10k1 *hw) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 91 | { |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 92 | struct snd_emux *emu; |
| 93 | struct snd_emux_voice *vp; |
| 94 | struct best_voice best[V_END]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 95 | unsigned long flags; |
| 96 | int i; |
| 97 | |
| 98 | emu = hw->synth; |
| 99 | |
| 100 | spin_lock_irqsave(&emu->voice_lock, flags); |
| 101 | lookup_voices(emu, hw, best, 1); /* no OFF voices */ |
| 102 | for (i = 0; i < V_END; i++) { |
| 103 | if (best[i].voice >= 0) { |
| 104 | int ch; |
| 105 | vp = &emu->voices[best[i].voice]; |
| 106 | if ((ch = vp->ch) < 0) { |
| 107 | //printk("synth_get_voice: ch < 0 (%d) ??", i); |
| 108 | continue; |
| 109 | } |
| 110 | vp->emu->num_voices--; |
| 111 | vp->ch = -1; |
| 112 | vp->state = SNDRV_EMUX_ST_OFF; |
| 113 | spin_unlock_irqrestore(&emu->voice_lock, flags); |
| 114 | return ch; |
| 115 | } |
| 116 | } |
| 117 | spin_unlock_irqrestore(&emu->voice_lock, flags); |
| 118 | |
| 119 | /* not found */ |
| 120 | return -ENOMEM; |
| 121 | } |
| 122 | |
| 123 | |
| 124 | /* |
| 125 | * turn off the voice (not terminated) |
| 126 | */ |
| 127 | static void |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 128 | release_voice(struct snd_emux_voice *vp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 129 | { |
| 130 | int dcysusv; |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 131 | struct snd_emu10k1 *hw; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 132 | |
| 133 | hw = vp->hw; |
| 134 | dcysusv = 0x8000 | (unsigned char)vp->reg.parm.modrelease; |
| 135 | snd_emu10k1_ptr_write(hw, DCYSUSM, vp->ch, dcysusv); |
| 136 | dcysusv = 0x8000 | (unsigned char)vp->reg.parm.volrelease | DCYSUSV_CHANNELENABLE_MASK; |
| 137 | snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, dcysusv); |
| 138 | } |
| 139 | |
| 140 | |
| 141 | /* |
| 142 | * terminate the voice |
| 143 | */ |
| 144 | static void |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 145 | terminate_voice(struct snd_emux_voice *vp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 146 | { |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 147 | struct snd_emu10k1 *hw; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 148 | |
| 149 | snd_assert(vp, return); |
| 150 | hw = vp->hw; |
| 151 | snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, 0x807f | DCYSUSV_CHANNELENABLE_MASK); |
| 152 | if (vp->block) { |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 153 | struct snd_emu10k1_memblk *emem; |
| 154 | emem = (struct snd_emu10k1_memblk *)vp->block; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 155 | if (emem->map_locked > 0) |
| 156 | emem->map_locked--; |
| 157 | } |
| 158 | } |
| 159 | |
| 160 | /* |
| 161 | * release the voice to system |
| 162 | */ |
| 163 | static void |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 164 | free_voice(struct snd_emux_voice *vp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 165 | { |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 166 | struct snd_emu10k1 *hw; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 167 | |
| 168 | hw = vp->hw; |
| 169 | if (vp->ch >= 0) { |
| 170 | snd_emu10k1_ptr_write(hw, IFATN, vp->ch, 0xff00); |
| 171 | snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, 0x807f | DCYSUSV_CHANNELENABLE_MASK); |
| 172 | // snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, 0); |
| 173 | snd_emu10k1_ptr_write(hw, VTFT, vp->ch, 0xffff); |
| 174 | snd_emu10k1_ptr_write(hw, CVCF, vp->ch, 0xffff); |
| 175 | snd_emu10k1_voice_free(hw, &hw->voices[vp->ch]); |
| 176 | vp->emu->num_voices--; |
| 177 | vp->ch = -1; |
| 178 | } |
| 179 | } |
| 180 | |
| 181 | |
| 182 | /* |
| 183 | * update registers |
| 184 | */ |
| 185 | static void |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 186 | update_voice(struct snd_emux_voice *vp, int update) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 187 | { |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 188 | struct snd_emu10k1 *hw; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 189 | |
| 190 | hw = vp->hw; |
| 191 | if (update & SNDRV_EMUX_UPDATE_VOLUME) |
| 192 | snd_emu10k1_ptr_write(hw, IFATN_ATTENUATION, vp->ch, vp->avol); |
| 193 | if (update & SNDRV_EMUX_UPDATE_PITCH) |
| 194 | snd_emu10k1_ptr_write(hw, IP, vp->ch, vp->apitch); |
| 195 | if (update & SNDRV_EMUX_UPDATE_PAN) { |
| 196 | snd_emu10k1_ptr_write(hw, PTRX_FXSENDAMOUNT_A, vp->ch, vp->apan); |
| 197 | snd_emu10k1_ptr_write(hw, PTRX_FXSENDAMOUNT_B, vp->ch, vp->aaux); |
| 198 | } |
| 199 | if (update & SNDRV_EMUX_UPDATE_FMMOD) |
| 200 | set_fmmod(hw, vp); |
| 201 | if (update & SNDRV_EMUX_UPDATE_TREMFREQ) |
| 202 | snd_emu10k1_ptr_write(hw, TREMFRQ, vp->ch, vp->reg.parm.tremfrq); |
| 203 | if (update & SNDRV_EMUX_UPDATE_FM2FRQ2) |
| 204 | set_fm2frq2(hw, vp); |
| 205 | if (update & SNDRV_EMUX_UPDATE_Q) |
| 206 | set_filterQ(hw, vp); |
| 207 | } |
| 208 | |
| 209 | |
| 210 | /* |
| 211 | * look up voice table - get the best voice in order of preference |
| 212 | */ |
| 213 | /* spinlock held! */ |
| 214 | static void |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 215 | lookup_voices(struct snd_emux *emu, struct snd_emu10k1 *hw, |
| 216 | struct best_voice *best, int active_only) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 217 | { |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 218 | struct snd_emux_voice *vp; |
| 219 | struct best_voice *bp; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 220 | int i; |
| 221 | |
| 222 | for (i = 0; i < V_END; i++) { |
| 223 | best[i].time = (unsigned int)-1; /* XXX MAX_?INT really */; |
| 224 | best[i].voice = -1; |
| 225 | } |
| 226 | |
| 227 | /* |
| 228 | * Go through them all and get a best one to use. |
| 229 | * NOTE: could also look at volume and pick the quietest one. |
| 230 | */ |
| 231 | for (i = 0; i < emu->max_voices; i++) { |
| 232 | int state, val; |
| 233 | |
| 234 | vp = &emu->voices[i]; |
| 235 | state = vp->state; |
| 236 | if (state == SNDRV_EMUX_ST_OFF) { |
| 237 | if (vp->ch < 0) { |
| 238 | if (active_only) |
| 239 | continue; |
| 240 | bp = best + V_FREE; |
| 241 | } else |
| 242 | bp = best + V_OFF; |
| 243 | } |
| 244 | else if (state == SNDRV_EMUX_ST_RELEASED || |
| 245 | state == SNDRV_EMUX_ST_PENDING) { |
| 246 | bp = best + V_RELEASED; |
Tim | fc20773 | 2005-10-25 11:10:55 +0200 | [diff] [blame] | 247 | #if 1 |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | val = snd_emu10k1_ptr_read(hw, CVCF_CURRENTVOL, vp->ch); |
| 249 | if (! val) |
| 250 | bp = best + V_OFF; |
| 251 | #endif |
| 252 | } |
| 253 | else if (state == SNDRV_EMUX_ST_STANDBY) |
| 254 | continue; |
| 255 | else if (state & SNDRV_EMUX_ST_ON) |
| 256 | bp = best + V_PLAYING; |
| 257 | else |
| 258 | continue; |
| 259 | |
| 260 | /* check if sample is finished playing (non-looping only) */ |
| 261 | if (bp != best + V_OFF && bp != best + V_FREE && |
| 262 | (vp->reg.sample_mode & SNDRV_SFNT_SAMPLE_SINGLESHOT)) { |
| 263 | val = snd_emu10k1_ptr_read(hw, CCCA_CURRADDR, vp->ch); |
| 264 | if (val >= vp->reg.loopstart) |
| 265 | bp = best + V_OFF; |
| 266 | } |
| 267 | |
| 268 | if (vp->time < bp->time) { |
| 269 | bp->time = vp->time; |
| 270 | bp->voice = i; |
| 271 | } |
| 272 | } |
| 273 | } |
| 274 | |
| 275 | /* |
| 276 | * get an empty voice |
| 277 | * |
| 278 | * emu->voice_lock is already held. |
| 279 | */ |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 280 | static struct snd_emux_voice * |
| 281 | get_voice(struct snd_emux *emu, struct snd_emux_port *port) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 282 | { |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 283 | struct snd_emu10k1 *hw; |
| 284 | struct snd_emux_voice *vp; |
| 285 | struct best_voice best[V_END]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 286 | int i; |
| 287 | |
| 288 | hw = emu->hw; |
| 289 | |
| 290 | lookup_voices(emu, hw, best, 0); |
| 291 | for (i = 0; i < V_END; i++) { |
| 292 | if (best[i].voice >= 0) { |
| 293 | vp = &emu->voices[best[i].voice]; |
| 294 | if (vp->ch < 0) { |
| 295 | /* allocate a voice */ |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 296 | struct snd_emu10k1_voice *hwvoice; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 297 | if (snd_emu10k1_voice_alloc(hw, EMU10K1_SYNTH, 1, &hwvoice) < 0 || hwvoice == NULL) |
| 298 | continue; |
| 299 | vp->ch = hwvoice->number; |
| 300 | emu->num_voices++; |
| 301 | } |
| 302 | return vp; |
| 303 | } |
| 304 | } |
| 305 | |
| 306 | /* not found */ |
| 307 | return NULL; |
| 308 | } |
| 309 | |
| 310 | /* |
| 311 | * prepare envelopes and LFOs |
| 312 | */ |
| 313 | static int |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 314 | start_voice(struct snd_emux_voice *vp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 315 | { |
| 316 | unsigned int temp; |
| 317 | int ch; |
| 318 | unsigned int addr, mapped_offset; |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 319 | struct snd_midi_channel *chan; |
| 320 | struct snd_emu10k1 *hw; |
| 321 | struct snd_emu10k1_memblk *emem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 322 | |
| 323 | hw = vp->hw; |
| 324 | ch = vp->ch; |
| 325 | snd_assert(ch >= 0, return -EINVAL); |
| 326 | chan = vp->chan; |
| 327 | |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 328 | emem = (struct snd_emu10k1_memblk *)vp->block; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 329 | if (emem == NULL) |
| 330 | return -EINVAL; |
| 331 | emem->map_locked++; |
| 332 | if (snd_emu10k1_memblk_map(hw, emem) < 0) { |
| 333 | // printk("emu: cannot map!\n"); |
| 334 | return -ENOMEM; |
| 335 | } |
| 336 | mapped_offset = snd_emu10k1_memblk_offset(emem) >> 1; |
| 337 | vp->reg.start += mapped_offset; |
| 338 | vp->reg.end += mapped_offset; |
| 339 | vp->reg.loopstart += mapped_offset; |
| 340 | vp->reg.loopend += mapped_offset; |
| 341 | |
| 342 | /* set channel routing */ |
| 343 | /* A = left(0), B = right(1), C = reverb(c), D = chorus(d) */ |
| 344 | if (hw->audigy) { |
| 345 | temp = FXBUS_MIDI_LEFT | (FXBUS_MIDI_RIGHT << 8) | |
| 346 | (FXBUS_MIDI_REVERB << 16) | (FXBUS_MIDI_CHORUS << 24); |
| 347 | snd_emu10k1_ptr_write(hw, A_FXRT1, ch, temp); |
| 348 | } else { |
| 349 | temp = (FXBUS_MIDI_LEFT << 16) | (FXBUS_MIDI_RIGHT << 20) | |
| 350 | (FXBUS_MIDI_REVERB << 24) | (FXBUS_MIDI_CHORUS << 28); |
| 351 | snd_emu10k1_ptr_write(hw, FXRT, ch, temp); |
| 352 | } |
| 353 | |
| 354 | /* channel to be silent and idle */ |
Tim | fc20773 | 2005-10-25 11:10:55 +0200 | [diff] [blame] | 355 | snd_emu10k1_ptr_write(hw, DCYSUSV, ch, 0x0000); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | snd_emu10k1_ptr_write(hw, VTFT, ch, 0x0000FFFF); |
| 357 | snd_emu10k1_ptr_write(hw, CVCF, ch, 0x0000FFFF); |
| 358 | snd_emu10k1_ptr_write(hw, PTRX, ch, 0); |
| 359 | snd_emu10k1_ptr_write(hw, CPF, ch, 0); |
| 360 | |
| 361 | /* set pitch offset */ |
| 362 | snd_emu10k1_ptr_write(hw, IP, vp->ch, vp->apitch); |
| 363 | |
| 364 | /* set envelope parameters */ |
| 365 | snd_emu10k1_ptr_write(hw, ENVVAL, ch, vp->reg.parm.moddelay); |
| 366 | snd_emu10k1_ptr_write(hw, ATKHLDM, ch, vp->reg.parm.modatkhld); |
| 367 | snd_emu10k1_ptr_write(hw, DCYSUSM, ch, vp->reg.parm.moddcysus); |
| 368 | snd_emu10k1_ptr_write(hw, ENVVOL, ch, vp->reg.parm.voldelay); |
| 369 | snd_emu10k1_ptr_write(hw, ATKHLDV, ch, vp->reg.parm.volatkhld); |
| 370 | /* decay/sustain parameter for volume envelope is used |
| 371 | for triggerg the voice */ |
| 372 | |
| 373 | /* cutoff and volume */ |
| 374 | temp = (unsigned int)vp->acutoff << 8 | (unsigned char)vp->avol; |
| 375 | snd_emu10k1_ptr_write(hw, IFATN, vp->ch, temp); |
| 376 | |
| 377 | /* modulation envelope heights */ |
| 378 | snd_emu10k1_ptr_write(hw, PEFE, ch, vp->reg.parm.pefe); |
| 379 | |
| 380 | /* lfo1/2 delay */ |
| 381 | snd_emu10k1_ptr_write(hw, LFOVAL1, ch, vp->reg.parm.lfo1delay); |
| 382 | snd_emu10k1_ptr_write(hw, LFOVAL2, ch, vp->reg.parm.lfo2delay); |
| 383 | |
| 384 | /* lfo1 pitch & cutoff shift */ |
| 385 | set_fmmod(hw, vp); |
| 386 | /* lfo1 volume & freq */ |
| 387 | snd_emu10k1_ptr_write(hw, TREMFRQ, vp->ch, vp->reg.parm.tremfrq); |
| 388 | /* lfo2 pitch & freq */ |
| 389 | set_fm2frq2(hw, vp); |
| 390 | |
| 391 | /* reverb and loop start (reverb 8bit, MSB) */ |
| 392 | temp = vp->reg.parm.reverb; |
| 393 | temp += (int)vp->chan->control[MIDI_CTL_E1_REVERB_DEPTH] * 9 / 10; |
| 394 | LIMITMAX(temp, 255); |
| 395 | addr = vp->reg.loopstart; |
| 396 | snd_emu10k1_ptr_write(hw, PSST, vp->ch, (temp << 24) | addr); |
| 397 | |
| 398 | /* chorus & loop end (chorus 8bit, MSB) */ |
| 399 | addr = vp->reg.loopend; |
| 400 | temp = vp->reg.parm.chorus; |
| 401 | temp += (int)chan->control[MIDI_CTL_E3_CHORUS_DEPTH] * 9 / 10; |
| 402 | LIMITMAX(temp, 255); |
| 403 | temp = (temp <<24) | addr; |
| 404 | snd_emu10k1_ptr_write(hw, DSL, ch, temp); |
| 405 | |
| 406 | /* clear filter delay memory */ |
| 407 | snd_emu10k1_ptr_write(hw, Z1, ch, 0); |
| 408 | snd_emu10k1_ptr_write(hw, Z2, ch, 0); |
| 409 | |
| 410 | /* invalidate maps */ |
| 411 | temp = (hw->silent_page.addr << 1) | MAP_PTI_MASK; |
| 412 | snd_emu10k1_ptr_write(hw, MAPA, ch, temp); |
| 413 | snd_emu10k1_ptr_write(hw, MAPB, ch, temp); |
| 414 | #if 0 |
| 415 | /* cache */ |
| 416 | { |
| 417 | unsigned int val, sample; |
| 418 | val = 32; |
| 419 | if (vp->reg.sample_mode & SNDRV_SFNT_SAMPLE_8BITS) |
| 420 | sample = 0x80808080; |
| 421 | else { |
| 422 | sample = 0; |
| 423 | val *= 2; |
| 424 | } |
| 425 | |
| 426 | /* cache */ |
| 427 | snd_emu10k1_ptr_write(hw, CCR, ch, 0x1c << 16); |
| 428 | snd_emu10k1_ptr_write(hw, CDE, ch, sample); |
| 429 | snd_emu10k1_ptr_write(hw, CDF, ch, sample); |
| 430 | |
| 431 | /* invalidate maps */ |
| 432 | temp = ((unsigned int)hw->silent_page.addr << 1) | MAP_PTI_MASK; |
| 433 | snd_emu10k1_ptr_write(hw, MAPA, ch, temp); |
| 434 | snd_emu10k1_ptr_write(hw, MAPB, ch, temp); |
| 435 | |
| 436 | /* fill cache */ |
| 437 | val -= 4; |
| 438 | val <<= 25; |
| 439 | val |= 0x1c << 16; |
| 440 | snd_emu10k1_ptr_write(hw, CCR, ch, val); |
| 441 | } |
| 442 | #endif |
| 443 | |
| 444 | /* Q & current address (Q 4bit value, MSB) */ |
| 445 | addr = vp->reg.start; |
| 446 | temp = vp->reg.parm.filterQ; |
| 447 | temp = (temp<<28) | addr; |
| 448 | if (vp->apitch < 0xe400) |
| 449 | temp |= CCCA_INTERPROM_0; |
| 450 | else { |
| 451 | unsigned int shift = (vp->apitch - 0xe000) >> 10; |
| 452 | temp |= shift << 25; |
| 453 | } |
| 454 | if (vp->reg.sample_mode & SNDRV_SFNT_SAMPLE_8BITS) |
| 455 | temp |= CCCA_8BITSELECT; |
| 456 | snd_emu10k1_ptr_write(hw, CCCA, ch, temp); |
| 457 | |
| 458 | /* reset volume */ |
| 459 | temp = (unsigned int)vp->vtarget << 16; |
| 460 | snd_emu10k1_ptr_write(hw, VTFT, ch, temp | vp->ftarget); |
| 461 | snd_emu10k1_ptr_write(hw, CVCF, ch, temp | 0xff00); |
| 462 | return 0; |
| 463 | } |
| 464 | |
| 465 | /* |
| 466 | * Start envelope |
| 467 | */ |
| 468 | static void |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 469 | trigger_voice(struct snd_emux_voice *vp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 470 | { |
| 471 | unsigned int temp, ptarget; |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 472 | struct snd_emu10k1 *hw; |
| 473 | struct snd_emu10k1_memblk *emem; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 474 | |
| 475 | hw = vp->hw; |
| 476 | |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 477 | emem = (struct snd_emu10k1_memblk *)vp->block; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 478 | if (! emem || emem->mapped_page < 0) |
| 479 | return; /* not mapped */ |
| 480 | |
| 481 | #if 0 |
| 482 | ptarget = (unsigned int)vp->ptarget << 16; |
| 483 | #else |
| 484 | ptarget = IP_TO_CP(vp->apitch); |
| 485 | #endif |
| 486 | /* set pitch target and pan (volume) */ |
| 487 | temp = ptarget | (vp->apan << 8) | vp->aaux; |
| 488 | snd_emu10k1_ptr_write(hw, PTRX, vp->ch, temp); |
| 489 | |
| 490 | /* pitch target */ |
| 491 | snd_emu10k1_ptr_write(hw, CPF, vp->ch, ptarget); |
| 492 | |
| 493 | /* trigger voice */ |
| 494 | snd_emu10k1_ptr_write(hw, DCYSUSV, vp->ch, vp->reg.parm.voldcysus|DCYSUSV_CHANNELENABLE_MASK); |
| 495 | } |
| 496 | |
| 497 | #define MOD_SENSE 18 |
| 498 | |
| 499 | /* set lfo1 modulation height and cutoff */ |
| 500 | static void |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 501 | set_fmmod(struct snd_emu10k1 *hw, struct snd_emux_voice *vp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 502 | { |
| 503 | unsigned short fmmod; |
| 504 | short pitch; |
| 505 | unsigned char cutoff; |
| 506 | int modulation; |
| 507 | |
| 508 | pitch = (char)(vp->reg.parm.fmmod>>8); |
| 509 | cutoff = (vp->reg.parm.fmmod & 0xff); |
| 510 | modulation = vp->chan->gm_modulation + vp->chan->midi_pressure; |
| 511 | pitch += (MOD_SENSE * modulation) / 1200; |
| 512 | LIMITVALUE(pitch, -128, 127); |
| 513 | fmmod = ((unsigned char)pitch<<8) | cutoff; |
| 514 | snd_emu10k1_ptr_write(hw, FMMOD, vp->ch, fmmod); |
| 515 | } |
| 516 | |
| 517 | /* set lfo2 pitch & frequency */ |
| 518 | static void |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 519 | set_fm2frq2(struct snd_emu10k1 *hw, struct snd_emux_voice *vp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 520 | { |
| 521 | unsigned short fm2frq2; |
| 522 | short pitch; |
| 523 | unsigned char freq; |
| 524 | int modulation; |
| 525 | |
| 526 | pitch = (char)(vp->reg.parm.fm2frq2>>8); |
| 527 | freq = vp->reg.parm.fm2frq2 & 0xff; |
| 528 | modulation = vp->chan->gm_modulation + vp->chan->midi_pressure; |
| 529 | pitch += (MOD_SENSE * modulation) / 1200; |
| 530 | LIMITVALUE(pitch, -128, 127); |
| 531 | fm2frq2 = ((unsigned char)pitch<<8) | freq; |
| 532 | snd_emu10k1_ptr_write(hw, FM2FRQ2, vp->ch, fm2frq2); |
| 533 | } |
| 534 | |
| 535 | /* set filterQ */ |
| 536 | static void |
Takashi Iwai | eb4698f | 2005-11-17 14:50:13 +0100 | [diff] [blame] | 537 | set_filterQ(struct snd_emu10k1 *hw, struct snd_emux_voice *vp) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | { |
| 539 | unsigned int val; |
| 540 | val = snd_emu10k1_ptr_read(hw, CCCA, vp->ch) & ~CCCA_RESONANCE; |
| 541 | val |= (vp->reg.parm.filterQ << 28); |
| 542 | snd_emu10k1_ptr_write(hw, CCCA, vp->ch, val); |
| 543 | } |