1 /* 2 * Copyright (c) by Jaroslav Kysela <perex@suse.cz> 3 * Creative Labs, Inc. 4 * Routines for control of EMU10K1 chips 5 * 6 * Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk> 7 * Added support for Audigy 2 Value. 8 * 9 * 10 * BUGS: 11 * -- 12 * 13 * TODO: 14 * -- 15 * 16 * This program is free software; you can redistribute it and/or modify 17 * it under the terms of the GNU General Public License as published by 18 * the Free Software Foundation; either version 2 of the License, or 19 * (at your option) any later version. 20 * 21 * This program is distributed in the hope that it will be useful, 22 * but WITHOUT ANY WARRANTY; without even the implied warranty of 23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 24 * GNU General Public License for more details. 25 * 26 * You should have received a copy of the GNU General Public License 27 * along with this program; if not, write to the Free Software 28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 29 * 30 */ 31 32 #include <sound/driver.h> 33 #include <linux/delay.h> 34 #include <linux/init.h> 35 #include <linux/interrupt.h> 36 #include <linux/pci.h> 37 #include <linux/slab.h> 38 #include <linux/vmalloc.h> 39 40 #include <sound/core.h> 41 #include <sound/emu10k1.h> 42 #include "p16v.h" 43 44 #if 0 45 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, Creative Labs, Inc."); 46 MODULE_DESCRIPTION("Routines for control of EMU10K1 chips"); 47 MODULE_LICENSE("GPL"); 48 #endif 49 50 /************************************************************************* 51 * EMU10K1 init / done 52 *************************************************************************/ 53 54 void snd_emu10k1_voice_init(emu10k1_t * emu, int ch) 55 { 56 snd_emu10k1_ptr_write(emu, DCYSUSV, ch, 0); 57 snd_emu10k1_ptr_write(emu, IP, ch, 0); 58 snd_emu10k1_ptr_write(emu, VTFT, ch, 0xffff); 59 snd_emu10k1_ptr_write(emu, CVCF, ch, 0xffff); 60 snd_emu10k1_ptr_write(emu, PTRX, ch, 0); 61 snd_emu10k1_ptr_write(emu, CPF, ch, 0); 62 snd_emu10k1_ptr_write(emu, CCR, ch, 0); 63 64 snd_emu10k1_ptr_write(emu, PSST, ch, 0); 65 snd_emu10k1_ptr_write(emu, DSL, ch, 0x10); 66 snd_emu10k1_ptr_write(emu, CCCA, ch, 0); 67 snd_emu10k1_ptr_write(emu, Z1, ch, 0); 68 snd_emu10k1_ptr_write(emu, Z2, ch, 0); 69 snd_emu10k1_ptr_write(emu, FXRT, ch, 0x32100000); 70 71 snd_emu10k1_ptr_write(emu, ATKHLDM, ch, 0); 72 snd_emu10k1_ptr_write(emu, DCYSUSM, ch, 0); 73 snd_emu10k1_ptr_write(emu, IFATN, ch, 0xffff); 74 snd_emu10k1_ptr_write(emu, PEFE, ch, 0); 75 snd_emu10k1_ptr_write(emu, FMMOD, ch, 0); 76 snd_emu10k1_ptr_write(emu, TREMFRQ, ch, 24); /* 1 Hz */ 77 snd_emu10k1_ptr_write(emu, FM2FRQ2, ch, 24); /* 1 Hz */ 78 snd_emu10k1_ptr_write(emu, TEMPENV, ch, 0); 79 80 /*** these are last so OFF prevents writing ***/ 81 snd_emu10k1_ptr_write(emu, LFOVAL2, ch, 0); 82 snd_emu10k1_ptr_write(emu, LFOVAL1, ch, 0); 83 snd_emu10k1_ptr_write(emu, ATKHLDV, ch, 0); 84 snd_emu10k1_ptr_write(emu, ENVVOL, ch, 0); 85 snd_emu10k1_ptr_write(emu, ENVVAL, ch, 0); 86 87 /* Audigy extra stuffs */ 88 if (emu->audigy) { 89 snd_emu10k1_ptr_write(emu, 0x4c, ch, 0); /* ?? */ 90 snd_emu10k1_ptr_write(emu, 0x4d, ch, 0); /* ?? */ 91 snd_emu10k1_ptr_write(emu, 0x4e, ch, 0); /* ?? */ 92 snd_emu10k1_ptr_write(emu, 0x4f, ch, 0); /* ?? */ 93 snd_emu10k1_ptr_write(emu, A_FXRT1, ch, 0x03020100); 94 snd_emu10k1_ptr_write(emu, A_FXRT2, ch, 0x3f3f3f3f); 95 snd_emu10k1_ptr_write(emu, A_SENDAMOUNTS, ch, 0); 96 } 97 } 98 99 static int __devinit snd_emu10k1_init(emu10k1_t * emu, int enable_ir) 100 { 101 int ch, idx, err; 102 unsigned int silent_page; 103 104 emu->fx8010.itram_size = (16 * 1024)/2; 105 emu->fx8010.etram_pages.area = NULL; 106 emu->fx8010.etram_pages.bytes = 0; 107 108 /* disable audio and lock cache */ 109 outl(HCFG_LOCKSOUNDCACHE | HCFG_LOCKTANKCACHE_MASK | HCFG_MUTEBUTTONENABLE, emu->port + HCFG); 110 111 /* reset recording buffers */ 112 snd_emu10k1_ptr_write(emu, MICBS, 0, ADCBS_BUFSIZE_NONE); 113 snd_emu10k1_ptr_write(emu, MICBA, 0, 0); 114 snd_emu10k1_ptr_write(emu, FXBS, 0, ADCBS_BUFSIZE_NONE); 115 snd_emu10k1_ptr_write(emu, FXBA, 0, 0); 116 snd_emu10k1_ptr_write(emu, ADCBS, 0, ADCBS_BUFSIZE_NONE); 117 snd_emu10k1_ptr_write(emu, ADCBA, 0, 0); 118 119 /* disable channel interrupt */ 120 outl(0, emu->port + INTE); 121 snd_emu10k1_ptr_write(emu, CLIEL, 0, 0); 122 snd_emu10k1_ptr_write(emu, CLIEH, 0, 0); 123 snd_emu10k1_ptr_write(emu, SOLEL, 0, 0); 124 snd_emu10k1_ptr_write(emu, SOLEH, 0, 0); 125 126 if (emu->audigy){ 127 /* set SPDIF bypass mode */ 128 snd_emu10k1_ptr_write(emu, SPBYPASS, 0, SPBYPASS_FORMAT); 129 /* enable rear left + rear right AC97 slots */ 130 snd_emu10k1_ptr_write(emu, AC97SLOT, 0, AC97SLOT_REAR_RIGHT | AC97SLOT_REAR_LEFT); 131 } 132 133 /* init envelope engine */ 134 for (ch = 0; ch < NUM_G; ch++) { 135 emu->voices[ch].emu = emu; 136 emu->voices[ch].number = ch; 137 snd_emu10k1_voice_init(emu, ch); 138 } 139 140 /* 141 * Init to 0x02109204 : 142 * Clock accuracy = 0 (1000ppm) 143 * Sample Rate = 2 (48kHz) 144 * Audio Channel = 1 (Left of 2) 145 * Source Number = 0 (Unspecified) 146 * Generation Status = 1 (Original for Cat Code 12) 147 * Cat Code = 12 (Digital Signal Mixer) 148 * Mode = 0 (Mode 0) 149 * Emphasis = 0 (None) 150 * CP = 1 (Copyright unasserted) 151 * AN = 0 (Audio data) 152 * P = 0 (Consumer) 153 */ 154 snd_emu10k1_ptr_write(emu, SPCS0, 0, 155 emu->spdif_bits[0] = 156 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 | 157 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | 158 SPCS_GENERATIONSTATUS | 0x00001200 | 159 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT); 160 snd_emu10k1_ptr_write(emu, SPCS1, 0, 161 emu->spdif_bits[1] = 162 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 | 163 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | 164 SPCS_GENERATIONSTATUS | 0x00001200 | 165 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT); 166 snd_emu10k1_ptr_write(emu, SPCS2, 0, 167 emu->spdif_bits[2] = 168 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 | 169 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | 170 SPCS_GENERATIONSTATUS | 0x00001200 | 171 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT); 172 173 if (emu->card_capabilities->ca0151_chip) { /* audigy2 */ 174 /* Hacks for Alice3 to work independent of haP16V driver */ 175 u32 tmp; 176 177 //Setup SRCMulti_I2S SamplingRate 178 tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, 0); 179 tmp &= 0xfffff1ff; 180 tmp |= (0x2<<9); 181 snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, 0, tmp); 182 183 /* Setup SRCSel (Enable Spdif,I2S SRCMulti) */ 184 snd_emu10k1_ptr20_write(emu, SRCSel, 0, 0x14); 185 /* Setup SRCMulti Input Audio Enable */ 186 /* Use 0xFFFFFFFF to enable P16V sounds. */ 187 snd_emu10k1_ptr20_write(emu, SRCMULTI_ENABLE, 0, 0xFFFFFFFF); 188 189 /* Enabled Phased (8-channel) P16V playback */ 190 outl(0x0201, emu->port + HCFG2); 191 /* Set playback routing. */ 192 snd_emu10k1_ptr20_write(emu, CAPTURE_P16V_SOURCE, 0, 0x78e4); 193 } 194 if (emu->card_capabilities->ca0108_chip) { /* audigy2 Value */ 195 /* Hacks for Alice3 to work independent of haP16V driver */ 196 u32 tmp; 197 198 snd_printk(KERN_ERR "Audigy2 value:Special config.\n"); 199 //Setup SRCMulti_I2S SamplingRate 200 tmp = snd_emu10k1_ptr_read(emu, A_SPDIF_SAMPLERATE, 0); 201 tmp &= 0xfffff1ff; 202 tmp |= (0x2<<9); 203 snd_emu10k1_ptr_write(emu, A_SPDIF_SAMPLERATE, 0, tmp); 204 205 /* Setup SRCSel (Enable Spdif,I2S SRCMulti) */ 206 outl(0x600000, emu->port + 0x20); 207 outl(0x14, emu->port + 0x24); 208 209 /* Setup SRCMulti Input Audio Enable */ 210 outl(0x7b0000, emu->port + 0x20); 211 outl(0xFF000000, emu->port + 0x24); 212 213 /* Setup SPDIF Out Audio Enable */ 214 /* The Audigy 2 Value has a separate SPDIF out, 215 * so no need for a mixer switch 216 */ 217 outl(0x7a0000, emu->port + 0x20); 218 outl(0xFF000000, emu->port + 0x24); 219 tmp = inl(emu->port + A_IOCFG) & ~0x8; /* Clear bit 3 */ 220 outl(tmp, emu->port + A_IOCFG); 221 } 222 223 224 /* 225 * Clear page with silence & setup all pointers to this page 226 */ 227 memset(emu->silent_page.area, 0, PAGE_SIZE); 228 silent_page = emu->silent_page.addr << 1; 229 for (idx = 0; idx < MAXPAGES; idx++) 230 ((u32 *)emu->ptb_pages.area)[idx] = cpu_to_le32(silent_page | idx); 231 snd_emu10k1_ptr_write(emu, PTB, 0, emu->ptb_pages.addr); 232 snd_emu10k1_ptr_write(emu, TCB, 0, 0); /* taken from original driver */ 233 snd_emu10k1_ptr_write(emu, TCBS, 0, 4); /* taken from original driver */ 234 235 silent_page = (emu->silent_page.addr << 1) | MAP_PTI_MASK; 236 for (ch = 0; ch < NUM_G; ch++) { 237 snd_emu10k1_ptr_write(emu, MAPA, ch, silent_page); 238 snd_emu10k1_ptr_write(emu, MAPB, ch, silent_page); 239 } 240 241 /* 242 * Hokay, setup HCFG 243 * Mute Disable Audio = 0 244 * Lock Tank Memory = 1 245 * Lock Sound Memory = 0 246 * Auto Mute = 1 247 */ 248 if (emu->audigy) { 249 if (emu->revision == 4) /* audigy2 */ 250 outl(HCFG_AUDIOENABLE | 251 HCFG_AC3ENABLE_CDSPDIF | 252 HCFG_AC3ENABLE_GPSPDIF | 253 HCFG_AUTOMUTE | HCFG_JOYENABLE, emu->port + HCFG); 254 else 255 outl(HCFG_AUTOMUTE | HCFG_JOYENABLE, emu->port + HCFG); 256 /* FIXME: Remove all these emu->model and replace it with a card recognition parameter, 257 * e.g. card_capabilities->joystick */ 258 } else if (emu->model == 0x20 || 259 emu->model == 0xc400 || 260 (emu->model == 0x21 && emu->revision < 6)) 261 outl(HCFG_LOCKTANKCACHE_MASK | HCFG_AUTOMUTE, emu->port + HCFG); 262 else 263 // With on-chip joystick 264 outl(HCFG_LOCKTANKCACHE_MASK | HCFG_AUTOMUTE | HCFG_JOYENABLE, emu->port + HCFG); 265 266 if (enable_ir) { /* enable IR for SB Live */ 267 if (emu->audigy) { 268 unsigned int reg = inl(emu->port + A_IOCFG); 269 outl(reg | A_IOCFG_GPOUT2, emu->port + A_IOCFG); 270 udelay(500); 271 outl(reg | A_IOCFG_GPOUT1 | A_IOCFG_GPOUT2, emu->port + A_IOCFG); 272 udelay(100); 273 outl(reg, emu->port + A_IOCFG); 274 } else { 275 unsigned int reg = inl(emu->port + HCFG); 276 outl(reg | HCFG_GPOUT2, emu->port + HCFG); 277 udelay(500); 278 outl(reg | HCFG_GPOUT1 | HCFG_GPOUT2, emu->port + HCFG); 279 udelay(100); 280 outl(reg, emu->port + HCFG); 281 } 282 } 283 284 if (emu->audigy) { /* enable analog output */ 285 unsigned int reg = inl(emu->port + A_IOCFG); 286 outl(reg | A_IOCFG_GPOUT0, emu->port + A_IOCFG); 287 } 288 289 /* 290 * Initialize the effect engine 291 */ 292 if ((err = snd_emu10k1_init_efx(emu)) < 0) 293 return err; 294 295 /* 296 * Enable the audio bit 297 */ 298 outl(inl(emu->port + HCFG) | HCFG_AUDIOENABLE, emu->port + HCFG); 299 300 /* Enable analog/digital outs on audigy */ 301 if (emu->audigy) { 302 outl(inl(emu->port + A_IOCFG) & ~0x44, emu->port + A_IOCFG); 303 304 if (emu->card_capabilities->ca0151_chip) { /* audigy2 */ 305 /* Unmute Analog now. Set GPO6 to 1 for Apollo. 306 * This has to be done after init ALice3 I2SOut beyond 48KHz. 307 * So, sequence is important. */ 308 outl(inl(emu->port + A_IOCFG) | 0x0040, emu->port + A_IOCFG); 309 } else if (emu->card_capabilities->ca0108_chip) { /* audigy2 value */ 310 /* Unmute Analog now. */ 311 outl(inl(emu->port + A_IOCFG) | 0x0060, emu->port + A_IOCFG); 312 } else { 313 /* Disable routing from AC97 line out to Front speakers */ 314 outl(inl(emu->port + A_IOCFG) | 0x0080, emu->port + A_IOCFG); 315 } 316 } 317 318 #if 0 319 { 320 unsigned int tmp; 321 /* FIXME: the following routine disables LiveDrive-II !! */ 322 // TOSLink detection 323 emu->tos_link = 0; 324 tmp = inl(emu->port + HCFG); 325 if (tmp & (HCFG_GPINPUT0 | HCFG_GPINPUT1)) { 326 outl(tmp|0x800, emu->port + HCFG); 327 udelay(50); 328 if (tmp != (inl(emu->port + HCFG) & ~0x800)) { 329 emu->tos_link = 1; 330 outl(tmp, emu->port + HCFG); 331 } 332 } 333 } 334 #endif 335 336 snd_emu10k1_intr_enable(emu, INTE_PCIERRORENABLE); 337 338 emu->reserved_page = (emu10k1_memblk_t *)snd_emu10k1_synth_alloc(emu, 4096); 339 if (emu->reserved_page) 340 emu->reserved_page->map_locked = 1; 341 342 return 0; 343 } 344 345 static int snd_emu10k1_done(emu10k1_t * emu) 346 { 347 int ch; 348 349 outl(0, emu->port + INTE); 350 351 /* 352 * Shutdown the chip 353 */ 354 for (ch = 0; ch < NUM_G; ch++) 355 snd_emu10k1_ptr_write(emu, DCYSUSV, ch, 0); 356 for (ch = 0; ch < NUM_G; ch++) { 357 snd_emu10k1_ptr_write(emu, VTFT, ch, 0); 358 snd_emu10k1_ptr_write(emu, CVCF, ch, 0); 359 snd_emu10k1_ptr_write(emu, PTRX, ch, 0); 360 snd_emu10k1_ptr_write(emu, CPF, ch, 0); 361 } 362 363 /* reset recording buffers */ 364 snd_emu10k1_ptr_write(emu, MICBS, 0, 0); 365 snd_emu10k1_ptr_write(emu, MICBA, 0, 0); 366 snd_emu10k1_ptr_write(emu, FXBS, 0, 0); 367 snd_emu10k1_ptr_write(emu, FXBA, 0, 0); 368 snd_emu10k1_ptr_write(emu, FXWC, 0, 0); 369 snd_emu10k1_ptr_write(emu, ADCBS, 0, ADCBS_BUFSIZE_NONE); 370 snd_emu10k1_ptr_write(emu, ADCBA, 0, 0); 371 snd_emu10k1_ptr_write(emu, TCBS, 0, TCBS_BUFFSIZE_16K); 372 snd_emu10k1_ptr_write(emu, TCB, 0, 0); 373 if (emu->audigy) 374 snd_emu10k1_ptr_write(emu, A_DBG, 0, A_DBG_SINGLE_STEP); 375 else 376 snd_emu10k1_ptr_write(emu, DBG, 0, EMU10K1_DBG_SINGLE_STEP); 377 378 /* disable channel interrupt */ 379 snd_emu10k1_ptr_write(emu, CLIEL, 0, 0); 380 snd_emu10k1_ptr_write(emu, CLIEH, 0, 0); 381 snd_emu10k1_ptr_write(emu, SOLEL, 0, 0); 382 snd_emu10k1_ptr_write(emu, SOLEH, 0, 0); 383 384 /* remove reserved page */ 385 if (emu->reserved_page != NULL) { 386 snd_emu10k1_synth_free(emu, (snd_util_memblk_t *)emu->reserved_page); 387 emu->reserved_page = NULL; 388 } 389 390 /* disable audio and lock cache */ 391 outl(HCFG_LOCKSOUNDCACHE | HCFG_LOCKTANKCACHE_MASK | HCFG_MUTEBUTTONENABLE, emu->port + HCFG); 392 snd_emu10k1_ptr_write(emu, PTB, 0, 0); 393 394 snd_emu10k1_free_efx(emu); 395 396 return 0; 397 } 398 399 /************************************************************************* 400 * ECARD functional implementation 401 *************************************************************************/ 402 403 /* In A1 Silicon, these bits are in the HC register */ 404 #define HOOKN_BIT (1L << 12) 405 #define HANDN_BIT (1L << 11) 406 #define PULSEN_BIT (1L << 10) 407 408 #define EC_GDI1 (1 << 13) 409 #define EC_GDI0 (1 << 14) 410 411 #define EC_NUM_CONTROL_BITS 20 412 413 #define EC_AC3_DATA_SELN 0x0001L 414 #define EC_EE_DATA_SEL 0x0002L 415 #define EC_EE_CNTRL_SELN 0x0004L 416 #define EC_EECLK 0x0008L 417 #define EC_EECS 0x0010L 418 #define EC_EESDO 0x0020L 419 #define EC_TRIM_CSN 0x0040L 420 #define EC_TRIM_SCLK 0x0080L 421 #define EC_TRIM_SDATA 0x0100L 422 #define EC_TRIM_MUTEN 0x0200L 423 #define EC_ADCCAL 0x0400L 424 #define EC_ADCRSTN 0x0800L 425 #define EC_DACCAL 0x1000L 426 #define EC_DACMUTEN 0x2000L 427 #define EC_LEDN 0x4000L 428 429 #define EC_SPDIF0_SEL_SHIFT 15 430 #define EC_SPDIF1_SEL_SHIFT 17 431 #define EC_SPDIF0_SEL_MASK (0x3L << EC_SPDIF0_SEL_SHIFT) 432 #define EC_SPDIF1_SEL_MASK (0x7L << EC_SPDIF1_SEL_SHIFT) 433 #define EC_SPDIF0_SELECT(_x) (((_x) << EC_SPDIF0_SEL_SHIFT) & EC_SPDIF0_SEL_MASK) 434 #define EC_SPDIF1_SELECT(_x) (((_x) << EC_SPDIF1_SEL_SHIFT) & EC_SPDIF1_SEL_MASK) 435 #define EC_CURRENT_PROM_VERSION 0x01 /* Self-explanatory. This should 436 * be incremented any time the EEPROM's 437 * format is changed. */ 438 439 #define EC_EEPROM_SIZE 0x40 /* ECARD EEPROM has 64 16-bit words */ 440 441 /* Addresses for special values stored in to EEPROM */ 442 #define EC_PROM_VERSION_ADDR 0x20 /* Address of the current prom version */ 443 #define EC_BOARDREV0_ADDR 0x21 /* LSW of board rev */ 444 #define EC_BOARDREV1_ADDR 0x22 /* MSW of board rev */ 445 446 #define EC_LAST_PROMFILE_ADDR 0x2f 447 448 #define EC_SERIALNUM_ADDR 0x30 /* First word of serial number. The 449 * can be up to 30 characters in length 450 * and is stored as a NULL-terminated 451 * ASCII string. Any unused bytes must be 452 * filled with zeros */ 453 #define EC_CHECKSUM_ADDR 0x3f /* Location at which checksum is stored */ 454 455 456 /* Most of this stuff is pretty self-evident. According to the hardware 457 * dudes, we need to leave the ADCCAL bit low in order to avoid a DC 458 * offset problem. Weird. 459 */ 460 #define EC_RAW_RUN_MODE (EC_DACMUTEN | EC_ADCRSTN | EC_TRIM_MUTEN | \ 461 EC_TRIM_CSN) 462 463 464 #define EC_DEFAULT_ADC_GAIN 0xC4C4 465 #define EC_DEFAULT_SPDIF0_SEL 0x0 466 #define EC_DEFAULT_SPDIF1_SEL 0x4 467 468 /************************************************************************** 469 * @func Clock bits into the Ecard's control latch. The Ecard uses a 470 * control latch will is loaded bit-serially by toggling the Modem control 471 * lines from function 2 on the E8010. This function hides these details 472 * and presents the illusion that we are actually writing to a distinct 473 * register. 474 */ 475 476 static void snd_emu10k1_ecard_write(emu10k1_t * emu, unsigned int value) 477 { 478 unsigned short count; 479 unsigned int data; 480 unsigned long hc_port; 481 unsigned int hc_value; 482 483 hc_port = emu->port + HCFG; 484 hc_value = inl(hc_port) & ~(HOOKN_BIT | HANDN_BIT | PULSEN_BIT); 485 outl(hc_value, hc_port); 486 487 for (count = 0; count < EC_NUM_CONTROL_BITS; count++) { 488 489 /* Set up the value */ 490 data = ((value & 0x1) ? PULSEN_BIT : 0); 491 value >>= 1; 492 493 outl(hc_value | data, hc_port); 494 495 /* Clock the shift register */ 496 outl(hc_value | data | HANDN_BIT, hc_port); 497 outl(hc_value | data, hc_port); 498 } 499 500 /* Latch the bits */ 501 outl(hc_value | HOOKN_BIT, hc_port); 502 outl(hc_value, hc_port); 503 } 504 505 /************************************************************************** 506 * @func Set the gain of the ECARD's CS3310 Trim/gain controller. The 507 * trim value consists of a 16bit value which is composed of two 508 * 8 bit gain/trim values, one for the left channel and one for the 509 * right channel. The following table maps from the Gain/Attenuation 510 * value in decibels into the corresponding bit pattern for a single 511 * channel. 512 */ 513 514 static void snd_emu10k1_ecard_setadcgain(emu10k1_t * emu, 515 unsigned short gain) 516 { 517 unsigned int bit; 518 519 /* Enable writing to the TRIM registers */ 520 snd_emu10k1_ecard_write(emu, emu->ecard_ctrl & ~EC_TRIM_CSN); 521 522 /* Do it again to insure that we meet hold time requirements */ 523 snd_emu10k1_ecard_write(emu, emu->ecard_ctrl & ~EC_TRIM_CSN); 524 525 for (bit = (1 << 15); bit; bit >>= 1) { 526 unsigned int value; 527 528 value = emu->ecard_ctrl & ~(EC_TRIM_CSN | EC_TRIM_SDATA); 529 530 if (gain & bit) 531 value |= EC_TRIM_SDATA; 532 533 /* Clock the bit */ 534 snd_emu10k1_ecard_write(emu, value); 535 snd_emu10k1_ecard_write(emu, value | EC_TRIM_SCLK); 536 snd_emu10k1_ecard_write(emu, value); 537 } 538 539 snd_emu10k1_ecard_write(emu, emu->ecard_ctrl); 540 } 541 542 static int __devinit snd_emu10k1_ecard_init(emu10k1_t * emu) 543 { 544 unsigned int hc_value; 545 546 /* Set up the initial settings */ 547 emu->ecard_ctrl = EC_RAW_RUN_MODE | 548 EC_SPDIF0_SELECT(EC_DEFAULT_SPDIF0_SEL) | 549 EC_SPDIF1_SELECT(EC_DEFAULT_SPDIF1_SEL); 550 551 /* Step 0: Set the codec type in the hardware control register 552 * and enable audio output */ 553 hc_value = inl(emu->port + HCFG); 554 outl(hc_value | HCFG_AUDIOENABLE | HCFG_CODECFORMAT_I2S, emu->port + HCFG); 555 inl(emu->port + HCFG); 556 557 /* Step 1: Turn off the led and deassert TRIM_CS */ 558 snd_emu10k1_ecard_write(emu, EC_ADCCAL | EC_LEDN | EC_TRIM_CSN); 559 560 /* Step 2: Calibrate the ADC and DAC */ 561 snd_emu10k1_ecard_write(emu, EC_DACCAL | EC_LEDN | EC_TRIM_CSN); 562 563 /* Step 3: Wait for awhile; XXX We can't get away with this 564 * under a real operating system; we'll need to block and wait that 565 * way. */ 566 snd_emu10k1_wait(emu, 48000); 567 568 /* Step 4: Switch off the DAC and ADC calibration. Note 569 * That ADC_CAL is actually an inverted signal, so we assert 570 * it here to stop calibration. */ 571 snd_emu10k1_ecard_write(emu, EC_ADCCAL | EC_LEDN | EC_TRIM_CSN); 572 573 /* Step 4: Switch into run mode */ 574 snd_emu10k1_ecard_write(emu, emu->ecard_ctrl); 575 576 /* Step 5: Set the analog input gain */ 577 snd_emu10k1_ecard_setadcgain(emu, EC_DEFAULT_ADC_GAIN); 578 579 return 0; 580 } 581 582 /* 583 * Create the EMU10K1 instance 584 */ 585 586 static int snd_emu10k1_free(emu10k1_t *emu) 587 { 588 if (emu->port) { /* avoid access to already used hardware */ 589 snd_emu10k1_fx8010_tram_setup(emu, 0); 590 snd_emu10k1_done(emu); 591 } 592 if (emu->memhdr) 593 snd_util_memhdr_free(emu->memhdr); 594 if (emu->silent_page.area) 595 snd_dma_free_pages(&emu->silent_page); 596 if (emu->ptb_pages.area) 597 snd_dma_free_pages(&emu->ptb_pages); 598 vfree(emu->page_ptr_table); 599 vfree(emu->page_addr_table); 600 if (emu->irq >= 0) 601 free_irq(emu->irq, (void *)emu); 602 if (emu->port) 603 pci_release_regions(emu->pci); 604 pci_disable_device(emu->pci); 605 if (emu->card_capabilities->ca0151_chip) /* P16V */ 606 snd_p16v_free(emu); 607 kfree(emu); 608 return 0; 609 } 610 611 static int snd_emu10k1_dev_free(snd_device_t *device) 612 { 613 emu10k1_t *emu = device->device_data; 614 return snd_emu10k1_free(emu); 615 } 616 617 static emu_chip_details_t emu_chip_details[] = { 618 /* Audigy 2 Value AC3 out does not work yet. Need to find out how to turn off interpolators.*/ 619 /* Tested by James@superbug.co.uk 3rd July 2005 */ 620 {.vendor = 0x1102, .device = 0x0008, .subsystem = 0x10011102, 621 .driver = "Audigy2", .name = "Audigy 2 Value [SB0400]", 622 .id = "Audigy2", 623 .emu10k2_chip = 1, 624 .ca0108_chip = 1, 625 .spk71 = 1, 626 .ac97_chip = 1} , 627 {.vendor = 0x1102, .device = 0x0008, 628 .driver = "Audigy2", .name = "Audigy 2 Value [Unknown]", 629 .id = "Audigy2", 630 .emu10k2_chip = 1, 631 .ca0108_chip = 1, 632 .ac97_chip = 1} , 633 /* Tested by James@superbug.co.uk 8th July 2005. No sound available yet. */ 634 {.vendor = 0x1102, .device = 0x0004, .subsystem = 0x40011102, 635 .driver = "Audigy2", .name = "E-mu 1212m [4001]", 636 .id = "EMU1212m", 637 .emu10k2_chip = 1, 638 .ca0102_chip = 1, 639 .ecard = 1} , 640 /* Tested by James@superbug.co.uk 3rd July 2005 */ 641 {.vendor = 0x1102, .device = 0x0004, .subsystem = 0x20071102, 642 .driver = "Audigy2", .name = "Audigy 4 PRO [SB0380]", 643 .id = "Audigy2", 644 .emu10k2_chip = 1, 645 .ca0102_chip = 1, 646 .ca0151_chip = 1, 647 .spk71 = 1, 648 .spdif_bug = 1, 649 .ac97_chip = 1} , 650 {.vendor = 0x1102, .device = 0x0004, .subsystem = 0x20021102, 651 .driver = "Audigy2", .name = "Audigy 2 ZS [SB0350]", 652 .id = "Audigy2", 653 .emu10k2_chip = 1, 654 .ca0102_chip = 1, 655 .ca0151_chip = 1, 656 .spk71 = 1, 657 .spdif_bug = 1, 658 .ac97_chip = 1} , 659 {.vendor = 0x1102, .device = 0x0004, .subsystem = 0x20011102, 660 .driver = "Audigy2", .name = "Audigy 2 ZS [2001]", 661 .id = "Audigy2", 662 .emu10k2_chip = 1, 663 .ca0102_chip = 1, 664 .ca0151_chip = 1, 665 .spk71 = 1, 666 .spdif_bug = 1, 667 .ac97_chip = 1} , 668 {.vendor = 0x1102, .device = 0x0004, .subsystem = 0x10071102, 669 .driver = "Audigy2", .name = "Audigy 2 [SB0240]", 670 .id = "Audigy2", 671 .emu10k2_chip = 1, 672 .ca0102_chip = 1, 673 .ca0151_chip = 1, 674 .spk71 = 1, 675 .spdif_bug = 1, 676 .ac97_chip = 1} , 677 {.vendor = 0x1102, .device = 0x0004, .subsystem = 0x10051102, 678 .driver = "Audigy2", .name = "Audigy 2 EX [1005]", 679 .id = "Audigy2", 680 .emu10k2_chip = 1, 681 .ca0102_chip = 1, 682 .ca0151_chip = 1, 683 .spdif_bug = 1} , 684 {.vendor = 0x1102, .device = 0x0004, .subsystem = 0x10021102, 685 .driver = "Audigy2", .name = "Audigy 2 Platinum [SB0240P]", 686 .id = "Audigy2", 687 .emu10k2_chip = 1, 688 .ca0102_chip = 1, 689 .ca0151_chip = 1, 690 .spk71 = 1, 691 .spdif_bug = 1, 692 .ac97_chip = 1} , 693 {.vendor = 0x1102, .device = 0x0004, .revision = 0x04, 694 .driver = "Audigy2", .name = "Audigy 2 [Unknown]", 695 .id = "Audigy2", 696 .emu10k2_chip = 1, 697 .ca0102_chip = 1, 698 .ca0151_chip = 1, 699 .spdif_bug = 1, 700 .ac97_chip = 1} , 701 {.vendor = 0x1102, .device = 0x0004, .subsystem = 0x00531102, 702 .driver = "Audigy", .name = "Audigy 1 [SB0090]", 703 .id = "Audigy", 704 .emu10k2_chip = 1, 705 .ca0102_chip = 1, 706 .ac97_chip = 1} , 707 {.vendor = 0x1102, .device = 0x0004, .subsystem = 0x00521102, 708 .driver = "Audigy", .name = "Audigy 1 ES [SB0160]", 709 .id = "Audigy", 710 .emu10k2_chip = 1, 711 .ca0102_chip = 1, 712 .spdif_bug = 1, 713 .ac97_chip = 1} , 714 {.vendor = 0x1102, .device = 0x0004, .subsystem = 0x00511102, 715 .driver = "Audigy", .name = "Audigy 1 [SB0090]", 716 .id = "Audigy", 717 .emu10k2_chip = 1, 718 .ca0102_chip = 1, 719 .ac97_chip = 1} , 720 {.vendor = 0x1102, .device = 0x0004, 721 .driver = "Audigy", .name = "Audigy 1 [Unknown]", 722 .id = "Audigy", 723 .emu10k2_chip = 1, 724 .ca0102_chip = 1, 725 .ac97_chip = 1} , 726 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x806B1102, 727 .driver = "EMU10K1", .name = "SBLive! [SB0105]", 728 .id = "Live", 729 .emu10k1_chip = 1, 730 .ac97_chip = 1, 731 .sblive51 = 1} , 732 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x806A1102, 733 .driver = "EMU10K1", .name = "SBLive! Value [SB0103]", 734 .id = "Live", 735 .emu10k1_chip = 1, 736 .ac97_chip = 1, 737 .sblive51 = 1} , 738 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x80691102, 739 .driver = "EMU10K1", .name = "SBLive! Value [SB0101]", 740 .id = "Live", 741 .emu10k1_chip = 1, 742 .ac97_chip = 1, 743 .sblive51 = 1} , 744 /* Tested by Thomas Zehetbauer 27th Aug 2005 */ 745 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x80651102, 746 .driver = "EMU10K1", .name = "SB Live 5.1 [SB0220]", 747 .id = "Live", 748 .emu10k1_chip = 1, 749 .ac97_chip = 1, 750 .sblive51 = 1} , 751 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x80641102, 752 .driver = "EMU10K1", .name = "SB Live 5.1", 753 .id = "Live", 754 .emu10k1_chip = 1, 755 .ac97_chip = 1, 756 .sblive51 = 1} , 757 /* Tested by alsa bugtrack user "hus" bug #1297 12th Aug 2005 */ 758 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x80611102, 759 .driver = "EMU10K1", .name = "SBLive 5.1 [SB0060]", 760 .id = "Live", 761 .emu10k1_chip = 1, 762 .ac97_chip = 2, /* ac97 is optional; both SBLive 5.1 and platinum 763 * share the same IDs! 764 */ 765 .sblive51 = 1} , 766 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x80511102, 767 .driver = "EMU10K1", .name = "SBLive! Value [CT4850]", 768 .id = "Live", 769 .emu10k1_chip = 1, 770 .ac97_chip = 1, 771 .sblive51 = 1} , 772 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x80401102, 773 .driver = "EMU10K1", .name = "SBLive! Platinum [CT4760P]", 774 .id = "Live", 775 .emu10k1_chip = 1, 776 .ac97_chip = 1} , 777 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x80321102, 778 .driver = "EMU10K1", .name = "SBLive! Value [CT4871]", 779 .id = "Live", 780 .emu10k1_chip = 1, 781 .ac97_chip = 1, 782 .sblive51 = 1} , 783 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x80311102, 784 .driver = "EMU10K1", .name = "SBLive! Value [CT4831]", 785 .id = "Live", 786 .emu10k1_chip = 1, 787 .ac97_chip = 1, 788 .sblive51 = 1} , 789 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x80281102, 790 .driver = "EMU10K1", .name = "SBLive! Value [CT4870]", 791 .id = "Live", 792 .emu10k1_chip = 1, 793 .ac97_chip = 1, 794 .sblive51 = 1} , 795 /* Tested by James@superbug.co.uk 3rd July 2005 */ 796 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x80271102, 797 .driver = "EMU10K1", .name = "SBLive! Value [CT4832]", 798 .id = "Live", 799 .emu10k1_chip = 1, 800 .ac97_chip = 1, 801 .sblive51 = 1} , 802 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x80261102, 803 .driver = "EMU10K1", .name = "SBLive! Value [CT4830]", 804 .id = "Live", 805 .emu10k1_chip = 1, 806 .ac97_chip = 1, 807 .sblive51 = 1} , 808 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x80231102, 809 .driver = "EMU10K1", .name = "SB PCI512 [CT4790]", 810 .id = "Live", 811 .emu10k1_chip = 1, 812 .ac97_chip = 1, 813 .sblive51 = 1} , 814 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x80221102, 815 .driver = "EMU10K1", .name = "SBLive! Value [CT4780]", 816 .id = "Live", 817 .emu10k1_chip = 1, 818 .ac97_chip = 1, 819 .sblive51 = 1} , 820 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x40011102, 821 .driver = "EMU10K1", .name = "E-mu APS [4001]", 822 .id = "APS", 823 .emu10k1_chip = 1, 824 .ecard = 1} , 825 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x00211102, 826 .driver = "EMU10K1", .name = "SBLive! [CT4620]", 827 .id = "Live", 828 .emu10k1_chip = 1, 829 .ac97_chip = 1, 830 .sblive51 = 1} , 831 {.vendor = 0x1102, .device = 0x0002, .subsystem = 0x00201102, 832 .driver = "EMU10K1", .name = "SBLive! Value [CT4670]", 833 .id = "Live", 834 .emu10k1_chip = 1, 835 .ac97_chip = 1, 836 .sblive51 = 1} , 837 {.vendor = 0x1102, .device = 0x0002, 838 .driver = "EMU10K1", .name = "SB Live [Unknown]", 839 .id = "Live", 840 .emu10k1_chip = 1, 841 .ac97_chip = 1, 842 .sblive51 = 1} , 843 { } /* terminator */ 844 }; 845 846 int __devinit snd_emu10k1_create(snd_card_t * card, 847 struct pci_dev * pci, 848 unsigned short extin_mask, 849 unsigned short extout_mask, 850 long max_cache_bytes, 851 int enable_ir, 852 uint subsystem, 853 emu10k1_t ** remu) 854 { 855 emu10k1_t *emu; 856 int err; 857 int is_audigy; 858 unsigned char revision; 859 const emu_chip_details_t *c; 860 static snd_device_ops_t ops = { 861 .dev_free = snd_emu10k1_dev_free, 862 }; 863 864 *remu = NULL; 865 866 /* enable PCI device */ 867 if ((err = pci_enable_device(pci)) < 0) 868 return err; 869 870 emu = kzalloc(sizeof(*emu), GFP_KERNEL); 871 if (emu == NULL) { 872 pci_disable_device(pci); 873 return -ENOMEM; 874 } 875 emu->card = card; 876 spin_lock_init(&emu->reg_lock); 877 spin_lock_init(&emu->emu_lock); 878 spin_lock_init(&emu->voice_lock); 879 spin_lock_init(&emu->synth_lock); 880 spin_lock_init(&emu->memblk_lock); 881 init_MUTEX(&emu->ptb_lock); 882 init_MUTEX(&emu->fx8010.lock); 883 INIT_LIST_HEAD(&emu->mapped_link_head); 884 INIT_LIST_HEAD(&emu->mapped_order_link_head); 885 emu->pci = pci; 886 emu->irq = -1; 887 emu->synth = NULL; 888 emu->get_synth_voice = NULL; 889 /* read revision & serial */ 890 pci_read_config_byte(pci, PCI_REVISION_ID, &revision); 891 emu->revision = revision; 892 pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &emu->serial); 893 pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &emu->model); 894 snd_printdd("vendor=0x%x, device=0x%x, subsystem_vendor_id=0x%x, subsystem_id=0x%x\n",pci->vendor, pci->device, emu->serial, emu->model); 895 896 for (c = emu_chip_details; c->vendor; c++) { 897 if (c->vendor == pci->vendor && c->device == pci->device) { 898 if (subsystem) { 899 if (c->subsystem && (c->subsystem == subsystem) ) { 900 break; 901 } else continue; 902 } else { 903 if (c->subsystem && (c->subsystem != emu->serial) ) 904 continue; 905 if (c->revision && c->revision != emu->revision) 906 continue; 907 } 908 break; 909 } 910 } 911 if (c->vendor == 0) { 912 snd_printk(KERN_ERR "emu10k1: Card not recognised\n"); 913 kfree(emu); 914 pci_disable_device(pci); 915 return -ENOENT; 916 } 917 emu->card_capabilities = c; 918 if (c->subsystem && !subsystem) 919 snd_printdd("Sound card name=%s\n", c->name); 920 else if (subsystem) 921 snd_printdd("Sound card name=%s, vendor=0x%x, device=0x%x, subsystem=0x%x. Forced to subsytem=0x%x\n", 922 c->name, pci->vendor, pci->device, emu->serial, c->subsystem); 923 else 924 snd_printdd("Sound card name=%s, vendor=0x%x, device=0x%x, subsystem=0x%x.\n", 925 c->name, pci->vendor, pci->device, emu->serial); 926 927 if (!*card->id && c->id) { 928 int i, n = 0; 929 strlcpy(card->id, c->id, sizeof(card->id)); 930 for (;;) { 931 for (i = 0; i < snd_ecards_limit; i++) { 932 if (snd_cards[i] && !strcmp(snd_cards[i]->id, card->id)) 933 break; 934 } 935 if (i >= snd_ecards_limit) 936 break; 937 n++; 938 if (n >= SNDRV_CARDS) 939 break; 940 snprintf(card->id, sizeof(card->id), "%s_%d", c->id, n); 941 } 942 } 943 944 is_audigy = emu->audigy = c->emu10k2_chip; 945 946 /* set the DMA transfer mask */ 947 emu->dma_mask = is_audigy ? AUDIGY_DMA_MASK : EMU10K1_DMA_MASK; 948 if (pci_set_dma_mask(pci, emu->dma_mask) < 0 || 949 pci_set_consistent_dma_mask(pci, emu->dma_mask) < 0) { 950 snd_printk(KERN_ERR "architecture does not support PCI busmaster DMA with mask 0x%lx\n", emu->dma_mask); 951 kfree(emu); 952 pci_disable_device(pci); 953 return -ENXIO; 954 } 955 if (is_audigy) 956 emu->gpr_base = A_FXGPREGBASE; 957 else 958 emu->gpr_base = FXGPREGBASE; 959 960 if ((err = pci_request_regions(pci, "EMU10K1")) < 0) { 961 kfree(emu); 962 pci_disable_device(pci); 963 return err; 964 } 965 emu->port = pci_resource_start(pci, 0); 966 967 if (request_irq(pci->irq, snd_emu10k1_interrupt, SA_INTERRUPT|SA_SHIRQ, "EMU10K1", (void *)emu)) { 968 snd_emu10k1_free(emu); 969 return -EBUSY; 970 } 971 emu->irq = pci->irq; 972 973 emu->max_cache_pages = max_cache_bytes >> PAGE_SHIFT; 974 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), 975 32 * 1024, &emu->ptb_pages) < 0) { 976 snd_emu10k1_free(emu); 977 return -ENOMEM; 978 } 979 980 emu->page_ptr_table = (void **)vmalloc(emu->max_cache_pages * sizeof(void*)); 981 emu->page_addr_table = (unsigned long*)vmalloc(emu->max_cache_pages * sizeof(unsigned long)); 982 if (emu->page_ptr_table == NULL || emu->page_addr_table == NULL) { 983 snd_emu10k1_free(emu); 984 return -ENOMEM; 985 } 986 987 if (snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), 988 EMUPAGESIZE, &emu->silent_page) < 0) { 989 snd_emu10k1_free(emu); 990 return -ENOMEM; 991 } 992 emu->memhdr = snd_util_memhdr_new(emu->max_cache_pages * PAGE_SIZE); 993 if (emu->memhdr == NULL) { 994 snd_emu10k1_free(emu); 995 return -ENOMEM; 996 } 997 emu->memhdr->block_extra_size = sizeof(emu10k1_memblk_t) - sizeof(snd_util_memblk_t); 998 999 pci_set_master(pci); 1000 1001 emu->fx8010.fxbus_mask = 0x303f; 1002 if (extin_mask == 0) 1003 extin_mask = 0x3fcf; 1004 if (extout_mask == 0) 1005 extout_mask = 0x7fff; 1006 emu->fx8010.extin_mask = extin_mask; 1007 emu->fx8010.extout_mask = extout_mask; 1008 1009 if (emu->card_capabilities->ecard) { 1010 if ((err = snd_emu10k1_ecard_init(emu)) < 0) { 1011 snd_emu10k1_free(emu); 1012 return err; 1013 } 1014 } else { 1015 /* 5.1: Enable the additional AC97 Slots. If the emu10k1 version 1016 does not support this, it shouldn't do any harm */ 1017 snd_emu10k1_ptr_write(emu, AC97SLOT, 0, AC97SLOT_CNTR|AC97SLOT_LFE); 1018 } 1019 1020 if ((err = snd_emu10k1_init(emu, enable_ir)) < 0) { 1021 snd_emu10k1_free(emu); 1022 return err; 1023 } 1024 1025 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, emu, &ops)) < 0) { 1026 snd_emu10k1_free(emu); 1027 return err; 1028 } 1029 1030 snd_emu10k1_proc_init(emu); 1031 1032 snd_card_set_dev(card, &pci->dev); 1033 *remu = emu; 1034 return 0; 1035 } 1036 1037 /* memory.c */ 1038 EXPORT_SYMBOL(snd_emu10k1_synth_alloc); 1039 EXPORT_SYMBOL(snd_emu10k1_synth_free); 1040 EXPORT_SYMBOL(snd_emu10k1_synth_bzero); 1041 EXPORT_SYMBOL(snd_emu10k1_synth_copy_from_user); 1042 EXPORT_SYMBOL(snd_emu10k1_memblk_map); 1043 /* voice.c */ 1044 EXPORT_SYMBOL(snd_emu10k1_voice_alloc); 1045 EXPORT_SYMBOL(snd_emu10k1_voice_free); 1046 /* io.c */ 1047 EXPORT_SYMBOL(snd_emu10k1_ptr_read); 1048 EXPORT_SYMBOL(snd_emu10k1_ptr_write); 1049