Loading...
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 | /* ********************************************************************** * hwaccess.c -- Hardware access layer * Copyright 1999, 2000 Creative Labs, Inc. * ********************************************************************** * * Date Author Summary of changes * ---- ------ ------------------ * October 20, 1999 Bertrand Lee base code release * December 9, 1999 Jon Taylor rewrote the I/O subsystem * ********************************************************************** * * 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 <asm/io.h> #include "hwaccess.h" #include "8010.h" #include "icardmid.h" /************************************************************************* * Function : srToPitch * * Input : sampleRate - sampling rate * * Return : pitch value * * About : convert sampling rate to pitch * * Note : for 8010, sampling rate is at 48kHz, this function should * * be changed. * *************************************************************************/ u32 srToPitch(u32 sampleRate) { int i; /* FIXME: These tables should be defined in a headerfile */ static u32 logMagTable[128] = { 0x00000, 0x02dfc, 0x05b9e, 0x088e6, 0x0b5d6, 0x0e26f, 0x10eb3, 0x13aa2, 0x1663f, 0x1918a, 0x1bc84, 0x1e72e, 0x2118b, 0x23b9a, 0x2655d, 0x28ed5, 0x2b803, 0x2e0e8, 0x30985, 0x331db, 0x359eb, 0x381b6, 0x3a93d, 0x3d081, 0x3f782, 0x41e42, 0x444c1, 0x46b01, 0x49101, 0x4b6c4, 0x4dc49, 0x50191, 0x5269e, 0x54b6f, 0x57006, 0x59463, 0x5b888, 0x5dc74, 0x60029, 0x623a7, 0x646ee, 0x66a00, 0x68cdd, 0x6af86, 0x6d1fa, 0x6f43c, 0x7164b, 0x73829, 0x759d4, 0x77b4f, 0x79c9a, 0x7bdb5, 0x7dea1, 0x7ff5e, 0x81fed, 0x8404e, 0x86082, 0x88089, 0x8a064, 0x8c014, 0x8df98, 0x8fef1, 0x91e20, 0x93d26, 0x95c01, 0x97ab4, 0x9993e, 0x9b79f, 0x9d5d9, 0x9f3ec, 0xa11d8, 0xa2f9d, 0xa4d3c, 0xa6ab5, 0xa8808, 0xaa537, 0xac241, 0xadf26, 0xafbe7, 0xb1885, 0xb3500, 0xb5157, 0xb6d8c, 0xb899f, 0xba58f, 0xbc15e, 0xbdd0c, 0xbf899, 0xc1404, 0xc2f50, 0xc4a7b, 0xc6587, 0xc8073, 0xc9b3f, 0xcb5ed, 0xcd07c, 0xceaec, 0xd053f, 0xd1f73, 0xd398a, 0xd5384, 0xd6d60, 0xd8720, 0xda0c3, 0xdba4a, 0xdd3b4, 0xded03, 0xe0636, 0xe1f4e, 0xe384a, 0xe512c, 0xe69f3, 0xe829f, 0xe9b31, 0xeb3a9, 0xecc08, 0xee44c, 0xefc78, 0xf148a, 0xf2c83, 0xf4463, 0xf5c2a, 0xf73da, 0xf8b71, 0xfa2f0, 0xfba57, 0xfd1a7, 0xfe8df }; static char logSlopeTable[128] = { 0x5c, 0x5c, 0x5b, 0x5a, 0x5a, 0x59, 0x58, 0x58, 0x57, 0x56, 0x56, 0x55, 0x55, 0x54, 0x53, 0x53, 0x52, 0x52, 0x51, 0x51, 0x50, 0x50, 0x4f, 0x4f, 0x4e, 0x4d, 0x4d, 0x4d, 0x4c, 0x4c, 0x4b, 0x4b, 0x4a, 0x4a, 0x49, 0x49, 0x48, 0x48, 0x47, 0x47, 0x47, 0x46, 0x46, 0x45, 0x45, 0x45, 0x44, 0x44, 0x43, 0x43, 0x43, 0x42, 0x42, 0x42, 0x41, 0x41, 0x41, 0x40, 0x40, 0x40, 0x3f, 0x3f, 0x3f, 0x3e, 0x3e, 0x3e, 0x3d, 0x3d, 0x3d, 0x3c, 0x3c, 0x3c, 0x3b, 0x3b, 0x3b, 0x3b, 0x3a, 0x3a, 0x3a, 0x39, 0x39, 0x39, 0x39, 0x38, 0x38, 0x38, 0x38, 0x37, 0x37, 0x37, 0x37, 0x36, 0x36, 0x36, 0x36, 0x35, 0x35, 0x35, 0x35, 0x34, 0x34, 0x34, 0x34, 0x34, 0x33, 0x33, 0x33, 0x33, 0x32, 0x32, 0x32, 0x32, 0x32, 0x31, 0x31, 0x31, 0x31, 0x31, 0x30, 0x30, 0x30, 0x30, 0x30, 0x2f, 0x2f, 0x2f, 0x2f, 0x2f }; if (sampleRate == 0) return 0; /* Bail out if no leading "1" */ sampleRate *= 11185; /* Scale 48000 to 0x20002380 */ for (i = 31; i > 0; i--) { if (sampleRate & 0x80000000) { /* Detect leading "1" */ return (u32) (((s32) (i - 15) << 20) + logMagTable[0x7f & (sampleRate >> 24)] + (0x7f & (sampleRate >> 17)) * logSlopeTable[0x7f & (sampleRate >> 24)]); } sampleRate = sampleRate << 1; } DPF(2, "srToPitch: BUG!\n"); return 0; /* Should never reach this point */ } /* Returns an attenuation based upon a cumulative volume value */ /* Algorithm calculates 0x200 - 0x10 log2 (input) */ u8 sumVolumeToAttenuation(u32 value) { u16 count = 16; s16 ans; if (value == 0) return 0xFF; /* Find first SET bit. This is the integer part of the value */ while ((value & 0x10000) == 0) { value <<= 1; count--; } /* The REST of the data is the fractional part. */ ans = (s16) (0x110 - ((count << 4) + ((value & 0x0FFFFL) >> 12))); if (ans > 0xFF) ans = 0xFF; return (u8) ans; } /******************************************* * write/read PCI function 0 registers * ********************************************/ void emu10k1_writefn0(struct emu10k1_card *card, u32 reg, u32 data) { unsigned long flags; if (reg & 0xff000000) { u32 mask; u8 size, offset; size = (reg >> 24) & 0x3f; offset = (reg >> 16) & 0x1f; mask = ((1 << size) - 1) << offset; data = (data << offset) & mask; reg &= 0x7f; spin_lock_irqsave(&card->lock, flags); data |= inl(card->iobase + reg) & ~mask; outl(data, card->iobase + reg); spin_unlock_irqrestore(&card->lock, flags); } else { spin_lock_irqsave(&card->lock, flags); outl(data, card->iobase + reg); spin_unlock_irqrestore(&card->lock, flags); } return; } u32 emu10k1_readfn0(struct emu10k1_card * card, u32 reg) { u32 val; unsigned long flags; if (reg & 0xff000000) { u32 mask; u8 size, offset; size = (reg >> 24) & 0x3f; offset = (reg >> 16) & 0x1f; mask = ((1 << size) - 1) << offset; reg &= 0x7f; spin_lock_irqsave(&card->lock, flags); val = inl(card->iobase + reg); spin_unlock_irqrestore(&card->lock, flags); return (val & mask) >> offset; } else { spin_lock_irqsave(&card->lock, flags); val = inl(card->iobase + reg); spin_unlock_irqrestore(&card->lock, flags); return val; } } /************************************************************************ * write/read Emu10k1 pointer-offset register set, accessed through * * the PTR and DATA registers * *************************************************************************/ void sblive_writeptr(struct emu10k1_card *card, u32 reg, u32 channel, u32 data) { u32 regptr; unsigned long flags; regptr = ((reg << 16) & PTR_ADDRESS_MASK) | (channel & PTR_CHANNELNUM_MASK); if (reg & 0xff000000) { u32 mask; u8 size, offset; size = (reg >> 24) & 0x3f; offset = (reg >> 16) & 0x1f; mask = ((1 << size) - 1) << offset; data = (data << offset) & mask; spin_lock_irqsave(&card->lock, flags); outl(regptr, card->iobase + PTR); data |= inl(card->iobase + DATA) & ~mask; outl(data, card->iobase + DATA); spin_unlock_irqrestore(&card->lock, flags); } else { spin_lock_irqsave(&card->lock, flags); outl(regptr, card->iobase + PTR); outl(data, card->iobase + DATA); spin_unlock_irqrestore(&card->lock, flags); } } /* ... : data, reg, ... , TAGLIST_END */ void sblive_writeptr_tag(struct emu10k1_card *card, u32 channel, ...) { va_list args; unsigned long flags; u32 reg; va_start(args, channel); spin_lock_irqsave(&card->lock, flags); while ((reg = va_arg(args, u32)) != TAGLIST_END) { u32 data = va_arg(args, u32); u32 regptr = (((reg << 16) & PTR_ADDRESS_MASK) | (channel & PTR_CHANNELNUM_MASK)); outl(regptr, card->iobase + PTR); if (reg & 0xff000000) { int size = (reg >> 24) & 0x3f; int offset = (reg >> 16) & 0x1f; u32 mask = ((1 << size) - 1) << offset; data = (data << offset) & mask; data |= inl(card->iobase + DATA) & ~mask; } outl(data, card->iobase + DATA); } spin_unlock_irqrestore(&card->lock, flags); va_end(args); return; } u32 sblive_readptr(struct emu10k1_card * card, u32 reg, u32 channel) { u32 regptr, val; unsigned long flags; regptr = ((reg << 16) & PTR_ADDRESS_MASK) | (channel & PTR_CHANNELNUM_MASK); if (reg & 0xff000000) { u32 mask; u8 size, offset; size = (reg >> 24) & 0x3f; offset = (reg >> 16) & 0x1f; mask = ((1 << size) - 1) << offset; spin_lock_irqsave(&card->lock, flags); outl(regptr, card->iobase + PTR); val = inl(card->iobase + DATA); spin_unlock_irqrestore(&card->lock, flags); return (val & mask) >> offset; } else { spin_lock_irqsave(&card->lock, flags); outl(regptr, card->iobase + PTR); val = inl(card->iobase + DATA); spin_unlock_irqrestore(&card->lock, flags); return val; } } void emu10k1_irq_enable(struct emu10k1_card *card, u32 irq_mask) { u32 val; unsigned long flags; DPF(2,"emu10k1_irq_enable()\n"); spin_lock_irqsave(&card->lock, flags); val = inl(card->iobase + INTE) | irq_mask; outl(val, card->iobase + INTE); spin_unlock_irqrestore(&card->lock, flags); return; } void emu10k1_irq_disable(struct emu10k1_card *card, u32 irq_mask) { u32 val; unsigned long flags; DPF(2,"emu10k1_irq_disable()\n"); spin_lock_irqsave(&card->lock, flags); val = inl(card->iobase + INTE) & ~irq_mask; outl(val, card->iobase + INTE); spin_unlock_irqrestore(&card->lock, flags); return; } void emu10k1_set_stop_on_loop(struct emu10k1_card *card, u32 voicenum) { /* Voice interrupt */ if (voicenum >= 32) sblive_writeptr(card, SOLEH | ((0x0100 | (voicenum - 32)) << 16), 0, 1); else sblive_writeptr(card, SOLEL | ((0x0100 | voicenum) << 16), 0, 1); return; } void emu10k1_clear_stop_on_loop(struct emu10k1_card *card, u32 voicenum) { /* Voice interrupt */ if (voicenum >= 32) sblive_writeptr(card, SOLEH | ((0x0100 | (voicenum - 32)) << 16), 0, 0); else sblive_writeptr(card, SOLEL | ((0x0100 | voicenum) << 16), 0, 0); return; } static void sblive_wcwait(struct emu10k1_card *card, u32 wait) { volatile unsigned uCount; u32 newtime = 0, curtime; curtime = emu10k1_readfn0(card, WC_SAMPLECOUNTER); while (wait--) { uCount = 0; while (uCount++ < TIMEOUT) { newtime = emu10k1_readfn0(card, WC_SAMPLECOUNTER); if (newtime != curtime) break; } if (uCount >= TIMEOUT) break; curtime = newtime; } } u16 emu10k1_ac97_read(struct ac97_codec *codec, u8 reg) { struct emu10k1_card *card = codec->private_data; u16 data; unsigned long flags; spin_lock_irqsave(&card->lock, flags); outb(reg, card->iobase + AC97ADDRESS); data = inw(card->iobase + AC97DATA); spin_unlock_irqrestore(&card->lock, flags); return data; } void emu10k1_ac97_write(struct ac97_codec *codec, u8 reg, u16 value) { struct emu10k1_card *card = codec->private_data; unsigned long flags; spin_lock_irqsave(&card->lock, flags); outb(reg, card->iobase + AC97ADDRESS); outw(value, card->iobase + AC97DATA); spin_unlock_irqrestore(&card->lock, flags); } /********************************************************* * MPU access functions * **********************************************************/ int emu10k1_mpu_write_data(struct emu10k1_card *card, u8 data) { unsigned long flags; int ret; spin_lock_irqsave(&card->lock, flags); if ((inb(card->iobase + MUSTAT) & MUSTAT_ORDYN) == 0) { outb(data, card->iobase + MUDATA); ret = 0; } else ret = -1; spin_unlock_irqrestore(&card->lock, flags); return ret; } int emu10k1_mpu_read_data(struct emu10k1_card *card, u8 * data) { unsigned long flags; int ret; spin_lock_irqsave(&card->lock, flags); if ((inb(card->iobase + MUSTAT) & MUSTAT_IRDYN) == 0) { *data = inb(card->iobase + MUDATA); ret = 0; } else ret = -1; spin_unlock_irqrestore(&card->lock, flags); return ret; } int emu10k1_mpu_reset(struct emu10k1_card *card) { u8 status; unsigned long flags; DPF(2, "emu10k1_mpu_reset()\n"); if (card->mpuacqcount == 0) { spin_lock_irqsave(&card->lock, flags); outb(MUCMD_RESET, card->iobase + MUCMD); spin_unlock_irqrestore(&card->lock, flags); sblive_wcwait(card, 8); spin_lock_irqsave(&card->lock, flags); outb(MUCMD_RESET, card->iobase + MUCMD); spin_unlock_irqrestore(&card->lock, flags); sblive_wcwait(card, 8); spin_lock_irqsave(&card->lock, flags); outb(MUCMD_ENTERUARTMODE, card->iobase + MUCMD); spin_unlock_irqrestore(&card->lock, flags); sblive_wcwait(card, 8); spin_lock_irqsave(&card->lock, flags); status = inb(card->iobase + MUDATA); spin_unlock_irqrestore(&card->lock, flags); if (status == 0xfe) return 0; else return -1; } return 0; } int emu10k1_mpu_acquire(struct emu10k1_card *card) { /* FIXME: This should be a macro */ ++card->mpuacqcount; return 0; } int emu10k1_mpu_release(struct emu10k1_card *card) { /* FIXME: this should be a macro */ --card->mpuacqcount; return 0; } |