1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Copyright (c) by Jaroslav Kysela <perex@perex.cz> 4 * Routines for control of CS4231(A)/CS4232/InterWave & compatible chips 5 * 6 * Bugs: 7 * - sometimes record brokes playback with WSS portion of 8 * Yamaha OPL3-SA3 chip 9 * - CS4231 (GUS MAX) - still trouble with occasional noises 10 * - broken initialization? 11 */ 12 13 #include <linux/delay.h> 14 #include <linux/pm.h> 15 #include <linux/init.h> 16 #include <linux/interrupt.h> 17 #include <linux/slab.h> 18 #include <linux/ioport.h> 19 #include <linux/module.h> 20 #include <linux/io.h> 21 #include <sound/core.h> 22 #include <sound/wss.h> 23 #include <sound/pcm_params.h> 24 #include <sound/tlv.h> 25 26 #include <asm/dma.h> 27 #include <asm/irq.h> 28 29 MODULE_AUTHOR("Jaroslav Kysela <perex@perex.cz>"); 30 MODULE_DESCRIPTION("Routines for control of CS4231(A)/CS4232/InterWave & compatible chips"); 31 MODULE_LICENSE("GPL"); 32 33 #if 0 34 #define SNDRV_DEBUG_MCE 35 #endif 36 37 /* 38 * Some variables 39 */ 40 41 static const unsigned char freq_bits[14] = { 42 /* 5510 */ 0x00 | CS4231_XTAL2, 43 /* 6620 */ 0x0E | CS4231_XTAL2, 44 /* 8000 */ 0x00 | CS4231_XTAL1, 45 /* 9600 */ 0x0E | CS4231_XTAL1, 46 /* 11025 */ 0x02 | CS4231_XTAL2, 47 /* 16000 */ 0x02 | CS4231_XTAL1, 48 /* 18900 */ 0x04 | CS4231_XTAL2, 49 /* 22050 */ 0x06 | CS4231_XTAL2, 50 /* 27042 */ 0x04 | CS4231_XTAL1, 51 /* 32000 */ 0x06 | CS4231_XTAL1, 52 /* 33075 */ 0x0C | CS4231_XTAL2, 53 /* 37800 */ 0x08 | CS4231_XTAL2, 54 /* 44100 */ 0x0A | CS4231_XTAL2, 55 /* 48000 */ 0x0C | CS4231_XTAL1 56 }; 57 58 static const unsigned int rates[14] = { 59 5510, 6620, 8000, 9600, 11025, 16000, 18900, 22050, 60 27042, 32000, 33075, 37800, 44100, 48000 61 }; 62 63 static const struct snd_pcm_hw_constraint_list hw_constraints_rates = { 64 .count = ARRAY_SIZE(rates), 65 .list = rates, 66 .mask = 0, 67 }; 68 69 static int snd_wss_xrate(struct snd_pcm_runtime *runtime) 70 { 71 return snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_RATE, 72 &hw_constraints_rates); 73 } 74 75 static const unsigned char snd_wss_original_image[32] = 76 { 77 0x00, /* 00/00 - lic */ 78 0x00, /* 01/01 - ric */ 79 0x9f, /* 02/02 - la1ic */ 80 0x9f, /* 03/03 - ra1ic */ 81 0x9f, /* 04/04 - la2ic */ 82 0x9f, /* 05/05 - ra2ic */ 83 0xbf, /* 06/06 - loc */ 84 0xbf, /* 07/07 - roc */ 85 0x20, /* 08/08 - pdfr */ 86 CS4231_AUTOCALIB, /* 09/09 - ic */ 87 0x00, /* 0a/10 - pc */ 88 0x00, /* 0b/11 - ti */ 89 CS4231_MODE2, /* 0c/12 - mi */ 90 0xfc, /* 0d/13 - lbc */ 91 0x00, /* 0e/14 - pbru */ 92 0x00, /* 0f/15 - pbrl */ 93 0x80, /* 10/16 - afei */ 94 0x01, /* 11/17 - afeii */ 95 0x9f, /* 12/18 - llic */ 96 0x9f, /* 13/19 - rlic */ 97 0x00, /* 14/20 - tlb */ 98 0x00, /* 15/21 - thb */ 99 0x00, /* 16/22 - la3mic/reserved */ 100 0x00, /* 17/23 - ra3mic/reserved */ 101 0x00, /* 18/24 - afs */ 102 0x00, /* 19/25 - lamoc/version */ 103 0xcf, /* 1a/26 - mioc */ 104 0x00, /* 1b/27 - ramoc/reserved */ 105 0x20, /* 1c/28 - cdfr */ 106 0x00, /* 1d/29 - res4 */ 107 0x00, /* 1e/30 - cbru */ 108 0x00, /* 1f/31 - cbrl */ 109 }; 110 111 static const unsigned char snd_opti93x_original_image[32] = 112 { 113 0x00, /* 00/00 - l_mixout_outctrl */ 114 0x00, /* 01/01 - r_mixout_outctrl */ 115 0x88, /* 02/02 - l_cd_inctrl */ 116 0x88, /* 03/03 - r_cd_inctrl */ 117 0x88, /* 04/04 - l_a1/fm_inctrl */ 118 0x88, /* 05/05 - r_a1/fm_inctrl */ 119 0x80, /* 06/06 - l_dac_inctrl */ 120 0x80, /* 07/07 - r_dac_inctrl */ 121 0x00, /* 08/08 - ply_dataform_reg */ 122 0x00, /* 09/09 - if_conf */ 123 0x00, /* 0a/10 - pin_ctrl */ 124 0x00, /* 0b/11 - err_init_reg */ 125 0x0a, /* 0c/12 - id_reg */ 126 0x00, /* 0d/13 - reserved */ 127 0x00, /* 0e/14 - ply_upcount_reg */ 128 0x00, /* 0f/15 - ply_lowcount_reg */ 129 0x88, /* 10/16 - reserved/l_a1_inctrl */ 130 0x88, /* 11/17 - reserved/r_a1_inctrl */ 131 0x88, /* 12/18 - l_line_inctrl */ 132 0x88, /* 13/19 - r_line_inctrl */ 133 0x88, /* 14/20 - l_mic_inctrl */ 134 0x88, /* 15/21 - r_mic_inctrl */ 135 0x80, /* 16/22 - l_out_outctrl */ 136 0x80, /* 17/23 - r_out_outctrl */ 137 0x00, /* 18/24 - reserved */ 138 0x00, /* 19/25 - reserved */ 139 0x00, /* 1a/26 - reserved */ 140 0x00, /* 1b/27 - reserved */ 141 0x00, /* 1c/28 - cap_dataform_reg */ 142 0x00, /* 1d/29 - reserved */ 143 0x00, /* 1e/30 - cap_upcount_reg */ 144 0x00 /* 1f/31 - cap_lowcount_reg */ 145 }; 146 147 /* 148 * Basic I/O functions 149 */ 150 151 static inline void wss_outb(struct snd_wss *chip, u8 offset, u8 val) 152 { 153 outb(val, chip->port + offset); 154 } 155 156 static inline u8 wss_inb(struct snd_wss *chip, u8 offset) 157 { 158 return inb(chip->port + offset); 159 } 160 161 static void snd_wss_wait(struct snd_wss *chip) 162 { 163 int timeout; 164 165 for (timeout = 250; 166 timeout > 0 && (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT); 167 timeout--) 168 udelay(100); 169 } 170 171 static void snd_wss_dout(struct snd_wss *chip, unsigned char reg, 172 unsigned char value) 173 { 174 int timeout; 175 176 for (timeout = 250; 177 timeout > 0 && (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT); 178 timeout--) 179 udelay(10); 180 wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg); 181 wss_outb(chip, CS4231P(REG), value); 182 mb(); 183 } 184 185 void snd_wss_out(struct snd_wss *chip, unsigned char reg, unsigned char value) 186 { 187 snd_wss_wait(chip); 188 #ifdef CONFIG_SND_DEBUG 189 if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) 190 snd_printk(KERN_DEBUG "out: auto calibration time out " 191 "- reg = 0x%x, value = 0x%x\n", reg, value); 192 #endif 193 wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg); 194 wss_outb(chip, CS4231P(REG), value); 195 chip->image[reg] = value; 196 mb(); 197 snd_printdd("codec out - reg 0x%x = 0x%x\n", 198 chip->mce_bit | reg, value); 199 } 200 EXPORT_SYMBOL(snd_wss_out); 201 202 unsigned char snd_wss_in(struct snd_wss *chip, unsigned char reg) 203 { 204 snd_wss_wait(chip); 205 #ifdef CONFIG_SND_DEBUG 206 if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) 207 snd_printk(KERN_DEBUG "in: auto calibration time out " 208 "- reg = 0x%x\n", reg); 209 #endif 210 wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | reg); 211 mb(); 212 return wss_inb(chip, CS4231P(REG)); 213 } 214 EXPORT_SYMBOL(snd_wss_in); 215 216 void snd_cs4236_ext_out(struct snd_wss *chip, unsigned char reg, 217 unsigned char val) 218 { 219 wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | 0x17); 220 wss_outb(chip, CS4231P(REG), 221 reg | (chip->image[CS4236_EXT_REG] & 0x01)); 222 wss_outb(chip, CS4231P(REG), val); 223 chip->eimage[CS4236_REG(reg)] = val; 224 #if 0 225 printk(KERN_DEBUG "ext out : reg = 0x%x, val = 0x%x\n", reg, val); 226 #endif 227 } 228 EXPORT_SYMBOL(snd_cs4236_ext_out); 229 230 unsigned char snd_cs4236_ext_in(struct snd_wss *chip, unsigned char reg) 231 { 232 wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | 0x17); 233 wss_outb(chip, CS4231P(REG), 234 reg | (chip->image[CS4236_EXT_REG] & 0x01)); 235 #if 1 236 return wss_inb(chip, CS4231P(REG)); 237 #else 238 { 239 unsigned char res; 240 res = wss_inb(chip, CS4231P(REG)); 241 printk(KERN_DEBUG "ext in : reg = 0x%x, val = 0x%x\n", 242 reg, res); 243 return res; 244 } 245 #endif 246 } 247 EXPORT_SYMBOL(snd_cs4236_ext_in); 248 249 #if 0 250 251 static void snd_wss_debug(struct snd_wss *chip) 252 { 253 printk(KERN_DEBUG 254 "CS4231 REGS: INDEX = 0x%02x " 255 " STATUS = 0x%02x\n", 256 wss_inb(chip, CS4231P(REGSEL)), 257 wss_inb(chip, CS4231P(STATUS))); 258 printk(KERN_DEBUG 259 " 0x00: left input = 0x%02x " 260 " 0x10: alt 1 (CFIG 2) = 0x%02x\n", 261 snd_wss_in(chip, 0x00), 262 snd_wss_in(chip, 0x10)); 263 printk(KERN_DEBUG 264 " 0x01: right input = 0x%02x " 265 " 0x11: alt 2 (CFIG 3) = 0x%02x\n", 266 snd_wss_in(chip, 0x01), 267 snd_wss_in(chip, 0x11)); 268 printk(KERN_DEBUG 269 " 0x02: GF1 left input = 0x%02x " 270 " 0x12: left line in = 0x%02x\n", 271 snd_wss_in(chip, 0x02), 272 snd_wss_in(chip, 0x12)); 273 printk(KERN_DEBUG 274 " 0x03: GF1 right input = 0x%02x " 275 " 0x13: right line in = 0x%02x\n", 276 snd_wss_in(chip, 0x03), 277 snd_wss_in(chip, 0x13)); 278 printk(KERN_DEBUG 279 " 0x04: CD left input = 0x%02x " 280 " 0x14: timer low = 0x%02x\n", 281 snd_wss_in(chip, 0x04), 282 snd_wss_in(chip, 0x14)); 283 printk(KERN_DEBUG 284 " 0x05: CD right input = 0x%02x " 285 " 0x15: timer high = 0x%02x\n", 286 snd_wss_in(chip, 0x05), 287 snd_wss_in(chip, 0x15)); 288 printk(KERN_DEBUG 289 " 0x06: left output = 0x%02x " 290 " 0x16: left MIC (PnP) = 0x%02x\n", 291 snd_wss_in(chip, 0x06), 292 snd_wss_in(chip, 0x16)); 293 printk(KERN_DEBUG 294 " 0x07: right output = 0x%02x " 295 " 0x17: right MIC (PnP) = 0x%02x\n", 296 snd_wss_in(chip, 0x07), 297 snd_wss_in(chip, 0x17)); 298 printk(KERN_DEBUG 299 " 0x08: playback format = 0x%02x " 300 " 0x18: IRQ status = 0x%02x\n", 301 snd_wss_in(chip, 0x08), 302 snd_wss_in(chip, 0x18)); 303 printk(KERN_DEBUG 304 " 0x09: iface (CFIG 1) = 0x%02x " 305 " 0x19: left line out = 0x%02x\n", 306 snd_wss_in(chip, 0x09), 307 snd_wss_in(chip, 0x19)); 308 printk(KERN_DEBUG 309 " 0x0a: pin control = 0x%02x " 310 " 0x1a: mono control = 0x%02x\n", 311 snd_wss_in(chip, 0x0a), 312 snd_wss_in(chip, 0x1a)); 313 printk(KERN_DEBUG 314 " 0x0b: init & status = 0x%02x " 315 " 0x1b: right line out = 0x%02x\n", 316 snd_wss_in(chip, 0x0b), 317 snd_wss_in(chip, 0x1b)); 318 printk(KERN_DEBUG 319 " 0x0c: revision & mode = 0x%02x " 320 " 0x1c: record format = 0x%02x\n", 321 snd_wss_in(chip, 0x0c), 322 snd_wss_in(chip, 0x1c)); 323 printk(KERN_DEBUG 324 " 0x0d: loopback = 0x%02x " 325 " 0x1d: var freq (PnP) = 0x%02x\n", 326 snd_wss_in(chip, 0x0d), 327 snd_wss_in(chip, 0x1d)); 328 printk(KERN_DEBUG 329 " 0x0e: ply upr count = 0x%02x " 330 " 0x1e: ply lwr count = 0x%02x\n", 331 snd_wss_in(chip, 0x0e), 332 snd_wss_in(chip, 0x1e)); 333 printk(KERN_DEBUG 334 " 0x0f: rec upr count = 0x%02x " 335 " 0x1f: rec lwr count = 0x%02x\n", 336 snd_wss_in(chip, 0x0f), 337 snd_wss_in(chip, 0x1f)); 338 } 339 340 #endif 341 342 /* 343 * CS4231 detection / MCE routines 344 */ 345 346 static void snd_wss_busy_wait(struct snd_wss *chip) 347 { 348 int timeout; 349 350 /* huh.. looks like this sequence is proper for CS4231A chip (GUS MAX) */ 351 for (timeout = 5; timeout > 0; timeout--) 352 wss_inb(chip, CS4231P(REGSEL)); 353 /* end of cleanup sequence */ 354 for (timeout = 25000; 355 timeout > 0 && (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT); 356 timeout--) 357 udelay(10); 358 } 359 360 void snd_wss_mce_up(struct snd_wss *chip) 361 { 362 unsigned long flags; 363 int timeout; 364 365 snd_wss_wait(chip); 366 #ifdef CONFIG_SND_DEBUG 367 if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) 368 snd_printk(KERN_DEBUG 369 "mce_up - auto calibration time out (0)\n"); 370 #endif 371 spin_lock_irqsave(&chip->reg_lock, flags); 372 chip->mce_bit |= CS4231_MCE; 373 timeout = wss_inb(chip, CS4231P(REGSEL)); 374 if (timeout == 0x80) 375 snd_printk(KERN_DEBUG "mce_up [0x%lx]: " 376 "serious init problem - codec still busy\n", 377 chip->port); 378 if (!(timeout & CS4231_MCE)) 379 wss_outb(chip, CS4231P(REGSEL), 380 chip->mce_bit | (timeout & 0x1f)); 381 spin_unlock_irqrestore(&chip->reg_lock, flags); 382 } 383 EXPORT_SYMBOL(snd_wss_mce_up); 384 385 void snd_wss_mce_down(struct snd_wss *chip) 386 { 387 unsigned long flags; 388 unsigned long end_time; 389 int timeout; 390 int hw_mask = WSS_HW_CS4231_MASK | WSS_HW_CS4232_MASK | WSS_HW_AD1848; 391 392 snd_wss_busy_wait(chip); 393 394 #ifdef CONFIG_SND_DEBUG 395 if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) 396 snd_printk(KERN_DEBUG "mce_down [0x%lx] - " 397 "auto calibration time out (0)\n", 398 (long)CS4231P(REGSEL)); 399 #endif 400 spin_lock_irqsave(&chip->reg_lock, flags); 401 chip->mce_bit &= ~CS4231_MCE; 402 timeout = wss_inb(chip, CS4231P(REGSEL)); 403 wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f)); 404 spin_unlock_irqrestore(&chip->reg_lock, flags); 405 if (timeout == 0x80) 406 snd_printk(KERN_DEBUG "mce_down [0x%lx]: " 407 "serious init problem - codec still busy\n", 408 chip->port); 409 if ((timeout & CS4231_MCE) == 0 || !(chip->hardware & hw_mask)) 410 return; 411 412 /* 413 * Wait for (possible -- during init auto-calibration may not be set) 414 * calibration process to start. Needs up to 5 sample periods on AD1848 415 * which at the slowest possible rate of 5.5125 kHz means 907 us. 416 */ 417 msleep(1); 418 419 snd_printdd("(1) jiffies = %lu\n", jiffies); 420 421 /* check condition up to 250 ms */ 422 end_time = jiffies + msecs_to_jiffies(250); 423 while (snd_wss_in(chip, CS4231_TEST_INIT) & 424 CS4231_CALIB_IN_PROGRESS) { 425 426 if (time_after(jiffies, end_time)) { 427 snd_printk(KERN_ERR "mce_down - " 428 "auto calibration time out (2)\n"); 429 return; 430 } 431 msleep(1); 432 } 433 434 snd_printdd("(2) jiffies = %lu\n", jiffies); 435 436 /* check condition up to 100 ms */ 437 end_time = jiffies + msecs_to_jiffies(100); 438 while (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) { 439 if (time_after(jiffies, end_time)) { 440 snd_printk(KERN_ERR "mce_down - auto calibration time out (3)\n"); 441 return; 442 } 443 msleep(1); 444 } 445 446 snd_printdd("(3) jiffies = %lu\n", jiffies); 447 snd_printd("mce_down - exit = 0x%x\n", wss_inb(chip, CS4231P(REGSEL))); 448 } 449 EXPORT_SYMBOL(snd_wss_mce_down); 450 451 static unsigned int snd_wss_get_count(unsigned char format, unsigned int size) 452 { 453 switch (format & 0xe0) { 454 case CS4231_LINEAR_16: 455 case CS4231_LINEAR_16_BIG: 456 size >>= 1; 457 break; 458 case CS4231_ADPCM_16: 459 return size >> 2; 460 } 461 if (format & CS4231_STEREO) 462 size >>= 1; 463 return size; 464 } 465 466 static int snd_wss_trigger(struct snd_pcm_substream *substream, 467 int cmd) 468 { 469 struct snd_wss *chip = snd_pcm_substream_chip(substream); 470 int result = 0; 471 unsigned int what; 472 struct snd_pcm_substream *s; 473 int do_start; 474 475 switch (cmd) { 476 case SNDRV_PCM_TRIGGER_START: 477 case SNDRV_PCM_TRIGGER_RESUME: 478 do_start = 1; break; 479 case SNDRV_PCM_TRIGGER_STOP: 480 case SNDRV_PCM_TRIGGER_SUSPEND: 481 do_start = 0; break; 482 default: 483 return -EINVAL; 484 } 485 486 what = 0; 487 snd_pcm_group_for_each_entry(s, substream) { 488 if (s == chip->playback_substream) { 489 what |= CS4231_PLAYBACK_ENABLE; 490 snd_pcm_trigger_done(s, substream); 491 } else if (s == chip->capture_substream) { 492 what |= CS4231_RECORD_ENABLE; 493 snd_pcm_trigger_done(s, substream); 494 } 495 } 496 spin_lock(&chip->reg_lock); 497 if (do_start) { 498 chip->image[CS4231_IFACE_CTRL] |= what; 499 if (chip->trigger) 500 chip->trigger(chip, what, 1); 501 } else { 502 chip->image[CS4231_IFACE_CTRL] &= ~what; 503 if (chip->trigger) 504 chip->trigger(chip, what, 0); 505 } 506 snd_wss_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]); 507 spin_unlock(&chip->reg_lock); 508 #if 0 509 snd_wss_debug(chip); 510 #endif 511 return result; 512 } 513 514 /* 515 * CODEC I/O 516 */ 517 518 static unsigned char snd_wss_get_rate(unsigned int rate) 519 { 520 int i; 521 522 for (i = 0; i < ARRAY_SIZE(rates); i++) 523 if (rate == rates[i]) 524 return freq_bits[i]; 525 // snd_BUG(); 526 return freq_bits[ARRAY_SIZE(rates) - 1]; 527 } 528 529 static unsigned char snd_wss_get_format(struct snd_wss *chip, 530 snd_pcm_format_t format, 531 int channels) 532 { 533 unsigned char rformat; 534 535 rformat = CS4231_LINEAR_8; 536 switch (format) { 537 case SNDRV_PCM_FORMAT_MU_LAW: rformat = CS4231_ULAW_8; break; 538 case SNDRV_PCM_FORMAT_A_LAW: rformat = CS4231_ALAW_8; break; 539 case SNDRV_PCM_FORMAT_S16_LE: rformat = CS4231_LINEAR_16; break; 540 case SNDRV_PCM_FORMAT_S16_BE: rformat = CS4231_LINEAR_16_BIG; break; 541 case SNDRV_PCM_FORMAT_IMA_ADPCM: rformat = CS4231_ADPCM_16; break; 542 } 543 if (channels > 1) 544 rformat |= CS4231_STEREO; 545 #if 0 546 snd_printk(KERN_DEBUG "get_format: 0x%x (mode=0x%x)\n", format, mode); 547 #endif 548 return rformat; 549 } 550 551 static void snd_wss_calibrate_mute(struct snd_wss *chip, int mute) 552 { 553 unsigned long flags; 554 555 mute = mute ? 0x80 : 0; 556 spin_lock_irqsave(&chip->reg_lock, flags); 557 if (chip->calibrate_mute == mute) { 558 spin_unlock_irqrestore(&chip->reg_lock, flags); 559 return; 560 } 561 if (!mute) { 562 snd_wss_dout(chip, CS4231_LEFT_INPUT, 563 chip->image[CS4231_LEFT_INPUT]); 564 snd_wss_dout(chip, CS4231_RIGHT_INPUT, 565 chip->image[CS4231_RIGHT_INPUT]); 566 snd_wss_dout(chip, CS4231_LOOPBACK, 567 chip->image[CS4231_LOOPBACK]); 568 } else { 569 snd_wss_dout(chip, CS4231_LEFT_INPUT, 570 0); 571 snd_wss_dout(chip, CS4231_RIGHT_INPUT, 572 0); 573 snd_wss_dout(chip, CS4231_LOOPBACK, 574 0xfd); 575 } 576 577 snd_wss_dout(chip, CS4231_AUX1_LEFT_INPUT, 578 mute | chip->image[CS4231_AUX1_LEFT_INPUT]); 579 snd_wss_dout(chip, CS4231_AUX1_RIGHT_INPUT, 580 mute | chip->image[CS4231_AUX1_RIGHT_INPUT]); 581 snd_wss_dout(chip, CS4231_AUX2_LEFT_INPUT, 582 mute | chip->image[CS4231_AUX2_LEFT_INPUT]); 583 snd_wss_dout(chip, CS4231_AUX2_RIGHT_INPUT, 584 mute | chip->image[CS4231_AUX2_RIGHT_INPUT]); 585 snd_wss_dout(chip, CS4231_LEFT_OUTPUT, 586 mute | chip->image[CS4231_LEFT_OUTPUT]); 587 snd_wss_dout(chip, CS4231_RIGHT_OUTPUT, 588 mute | chip->image[CS4231_RIGHT_OUTPUT]); 589 if (!(chip->hardware & WSS_HW_AD1848_MASK)) { 590 snd_wss_dout(chip, CS4231_LEFT_LINE_IN, 591 mute | chip->image[CS4231_LEFT_LINE_IN]); 592 snd_wss_dout(chip, CS4231_RIGHT_LINE_IN, 593 mute | chip->image[CS4231_RIGHT_LINE_IN]); 594 snd_wss_dout(chip, CS4231_MONO_CTRL, 595 mute ? 0xc0 : chip->image[CS4231_MONO_CTRL]); 596 } 597 if (chip->hardware == WSS_HW_INTERWAVE) { 598 snd_wss_dout(chip, CS4231_LEFT_MIC_INPUT, 599 mute | chip->image[CS4231_LEFT_MIC_INPUT]); 600 snd_wss_dout(chip, CS4231_RIGHT_MIC_INPUT, 601 mute | chip->image[CS4231_RIGHT_MIC_INPUT]); 602 snd_wss_dout(chip, CS4231_LINE_LEFT_OUTPUT, 603 mute | chip->image[CS4231_LINE_LEFT_OUTPUT]); 604 snd_wss_dout(chip, CS4231_LINE_RIGHT_OUTPUT, 605 mute | chip->image[CS4231_LINE_RIGHT_OUTPUT]); 606 } 607 chip->calibrate_mute = mute; 608 spin_unlock_irqrestore(&chip->reg_lock, flags); 609 } 610 611 static void snd_wss_playback_format(struct snd_wss *chip, 612 struct snd_pcm_hw_params *params, 613 unsigned char pdfr) 614 { 615 unsigned long flags; 616 int full_calib = 1; 617 618 mutex_lock(&chip->mce_mutex); 619 if (chip->hardware == WSS_HW_CS4231A || 620 (chip->hardware & WSS_HW_CS4232_MASK)) { 621 spin_lock_irqsave(&chip->reg_lock, flags); 622 if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (pdfr & 0x0f)) { /* rate is same? */ 623 snd_wss_out(chip, CS4231_ALT_FEATURE_1, 624 chip->image[CS4231_ALT_FEATURE_1] | 0x10); 625 chip->image[CS4231_PLAYBK_FORMAT] = pdfr; 626 snd_wss_out(chip, CS4231_PLAYBK_FORMAT, 627 chip->image[CS4231_PLAYBK_FORMAT]); 628 snd_wss_out(chip, CS4231_ALT_FEATURE_1, 629 chip->image[CS4231_ALT_FEATURE_1] &= ~0x10); 630 udelay(100); /* Fixes audible clicks at least on GUS MAX */ 631 full_calib = 0; 632 } 633 spin_unlock_irqrestore(&chip->reg_lock, flags); 634 } else if (chip->hardware == WSS_HW_AD1845) { 635 unsigned rate = params_rate(params); 636 637 /* 638 * Program the AD1845 correctly for the playback stream. 639 * Note that we do NOT need to toggle the MCE bit because 640 * the PLAYBACK_ENABLE bit of the Interface Configuration 641 * register is set. 642 * 643 * NOTE: We seem to need to write to the MSB before the LSB 644 * to get the correct sample frequency. 645 */ 646 spin_lock_irqsave(&chip->reg_lock, flags); 647 snd_wss_out(chip, CS4231_PLAYBK_FORMAT, (pdfr & 0xf0)); 648 snd_wss_out(chip, AD1845_UPR_FREQ_SEL, (rate >> 8) & 0xff); 649 snd_wss_out(chip, AD1845_LWR_FREQ_SEL, rate & 0xff); 650 full_calib = 0; 651 spin_unlock_irqrestore(&chip->reg_lock, flags); 652 } 653 if (full_calib) { 654 snd_wss_mce_up(chip); 655 spin_lock_irqsave(&chip->reg_lock, flags); 656 if (chip->hardware != WSS_HW_INTERWAVE && !chip->single_dma) { 657 if (chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE) 658 pdfr = (pdfr & 0xf0) | 659 (chip->image[CS4231_REC_FORMAT] & 0x0f); 660 } else { 661 chip->image[CS4231_PLAYBK_FORMAT] = pdfr; 662 } 663 snd_wss_out(chip, CS4231_PLAYBK_FORMAT, pdfr); 664 spin_unlock_irqrestore(&chip->reg_lock, flags); 665 if (chip->hardware == WSS_HW_OPL3SA2) 666 udelay(100); /* this seems to help */ 667 snd_wss_mce_down(chip); 668 } 669 mutex_unlock(&chip->mce_mutex); 670 } 671 672 static void snd_wss_capture_format(struct snd_wss *chip, 673 struct snd_pcm_hw_params *params, 674 unsigned char cdfr) 675 { 676 unsigned long flags; 677 int full_calib = 1; 678 679 mutex_lock(&chip->mce_mutex); 680 if (chip->hardware == WSS_HW_CS4231A || 681 (chip->hardware & WSS_HW_CS4232_MASK)) { 682 spin_lock_irqsave(&chip->reg_lock, flags); 683 if ((chip->image[CS4231_PLAYBK_FORMAT] & 0x0f) == (cdfr & 0x0f) || /* rate is same? */ 684 (chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) { 685 snd_wss_out(chip, CS4231_ALT_FEATURE_1, 686 chip->image[CS4231_ALT_FEATURE_1] | 0x20); 687 snd_wss_out(chip, CS4231_REC_FORMAT, 688 chip->image[CS4231_REC_FORMAT] = cdfr); 689 snd_wss_out(chip, CS4231_ALT_FEATURE_1, 690 chip->image[CS4231_ALT_FEATURE_1] &= ~0x20); 691 full_calib = 0; 692 } 693 spin_unlock_irqrestore(&chip->reg_lock, flags); 694 } else if (chip->hardware == WSS_HW_AD1845) { 695 unsigned rate = params_rate(params); 696 697 /* 698 * Program the AD1845 correctly for the capture stream. 699 * Note that we do NOT need to toggle the MCE bit because 700 * the PLAYBACK_ENABLE bit of the Interface Configuration 701 * register is set. 702 * 703 * NOTE: We seem to need to write to the MSB before the LSB 704 * to get the correct sample frequency. 705 */ 706 spin_lock_irqsave(&chip->reg_lock, flags); 707 snd_wss_out(chip, CS4231_REC_FORMAT, (cdfr & 0xf0)); 708 snd_wss_out(chip, AD1845_UPR_FREQ_SEL, (rate >> 8) & 0xff); 709 snd_wss_out(chip, AD1845_LWR_FREQ_SEL, rate & 0xff); 710 full_calib = 0; 711 spin_unlock_irqrestore(&chip->reg_lock, flags); 712 } 713 if (full_calib) { 714 snd_wss_mce_up(chip); 715 spin_lock_irqsave(&chip->reg_lock, flags); 716 if (chip->hardware != WSS_HW_INTERWAVE && 717 !(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) { 718 if (chip->single_dma) 719 snd_wss_out(chip, CS4231_PLAYBK_FORMAT, cdfr); 720 else 721 snd_wss_out(chip, CS4231_PLAYBK_FORMAT, 722 (chip->image[CS4231_PLAYBK_FORMAT] & 0xf0) | 723 (cdfr & 0x0f)); 724 spin_unlock_irqrestore(&chip->reg_lock, flags); 725 snd_wss_mce_down(chip); 726 snd_wss_mce_up(chip); 727 spin_lock_irqsave(&chip->reg_lock, flags); 728 } 729 if (chip->hardware & WSS_HW_AD1848_MASK) 730 snd_wss_out(chip, CS4231_PLAYBK_FORMAT, cdfr); 731 else 732 snd_wss_out(chip, CS4231_REC_FORMAT, cdfr); 733 spin_unlock_irqrestore(&chip->reg_lock, flags); 734 snd_wss_mce_down(chip); 735 } 736 mutex_unlock(&chip->mce_mutex); 737 } 738 739 /* 740 * Timer interface 741 */ 742 743 static unsigned long snd_wss_timer_resolution(struct snd_timer *timer) 744 { 745 struct snd_wss *chip = snd_timer_chip(timer); 746 if (chip->hardware & WSS_HW_CS4236B_MASK) 747 return 14467; 748 else 749 return chip->image[CS4231_PLAYBK_FORMAT] & 1 ? 9969 : 9920; 750 } 751 752 static int snd_wss_timer_start(struct snd_timer *timer) 753 { 754 unsigned long flags; 755 unsigned int ticks; 756 struct snd_wss *chip = snd_timer_chip(timer); 757 spin_lock_irqsave(&chip->reg_lock, flags); 758 ticks = timer->sticks; 759 if ((chip->image[CS4231_ALT_FEATURE_1] & CS4231_TIMER_ENABLE) == 0 || 760 (unsigned char)(ticks >> 8) != chip->image[CS4231_TIMER_HIGH] || 761 (unsigned char)ticks != chip->image[CS4231_TIMER_LOW]) { 762 chip->image[CS4231_TIMER_HIGH] = (unsigned char) (ticks >> 8); 763 snd_wss_out(chip, CS4231_TIMER_HIGH, 764 chip->image[CS4231_TIMER_HIGH]); 765 chip->image[CS4231_TIMER_LOW] = (unsigned char) ticks; 766 snd_wss_out(chip, CS4231_TIMER_LOW, 767 chip->image[CS4231_TIMER_LOW]); 768 snd_wss_out(chip, CS4231_ALT_FEATURE_1, 769 chip->image[CS4231_ALT_FEATURE_1] | 770 CS4231_TIMER_ENABLE); 771 } 772 spin_unlock_irqrestore(&chip->reg_lock, flags); 773 return 0; 774 } 775 776 static int snd_wss_timer_stop(struct snd_timer *timer) 777 { 778 unsigned long flags; 779 struct snd_wss *chip = snd_timer_chip(timer); 780 spin_lock_irqsave(&chip->reg_lock, flags); 781 chip->image[CS4231_ALT_FEATURE_1] &= ~CS4231_TIMER_ENABLE; 782 snd_wss_out(chip, CS4231_ALT_FEATURE_1, 783 chip->image[CS4231_ALT_FEATURE_1]); 784 spin_unlock_irqrestore(&chip->reg_lock, flags); 785 return 0; 786 } 787 788 static void snd_wss_init(struct snd_wss *chip) 789 { 790 unsigned long flags; 791 792 snd_wss_calibrate_mute(chip, 1); 793 snd_wss_mce_down(chip); 794 795 #ifdef SNDRV_DEBUG_MCE 796 snd_printk(KERN_DEBUG "init: (1)\n"); 797 #endif 798 snd_wss_mce_up(chip); 799 spin_lock_irqsave(&chip->reg_lock, flags); 800 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | 801 CS4231_PLAYBACK_PIO | 802 CS4231_RECORD_ENABLE | 803 CS4231_RECORD_PIO | 804 CS4231_CALIB_MODE); 805 chip->image[CS4231_IFACE_CTRL] |= CS4231_AUTOCALIB; 806 snd_wss_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]); 807 spin_unlock_irqrestore(&chip->reg_lock, flags); 808 snd_wss_mce_down(chip); 809 810 #ifdef SNDRV_DEBUG_MCE 811 snd_printk(KERN_DEBUG "init: (2)\n"); 812 #endif 813 814 snd_wss_mce_up(chip); 815 spin_lock_irqsave(&chip->reg_lock, flags); 816 chip->image[CS4231_IFACE_CTRL] &= ~CS4231_AUTOCALIB; 817 snd_wss_out(chip, CS4231_IFACE_CTRL, chip->image[CS4231_IFACE_CTRL]); 818 snd_wss_out(chip, 819 CS4231_ALT_FEATURE_1, chip->image[CS4231_ALT_FEATURE_1]); 820 spin_unlock_irqrestore(&chip->reg_lock, flags); 821 snd_wss_mce_down(chip); 822 823 #ifdef SNDRV_DEBUG_MCE 824 snd_printk(KERN_DEBUG "init: (3) - afei = 0x%x\n", 825 chip->image[CS4231_ALT_FEATURE_1]); 826 #endif 827 828 spin_lock_irqsave(&chip->reg_lock, flags); 829 snd_wss_out(chip, CS4231_ALT_FEATURE_2, 830 chip->image[CS4231_ALT_FEATURE_2]); 831 spin_unlock_irqrestore(&chip->reg_lock, flags); 832 833 snd_wss_mce_up(chip); 834 spin_lock_irqsave(&chip->reg_lock, flags); 835 snd_wss_out(chip, CS4231_PLAYBK_FORMAT, 836 chip->image[CS4231_PLAYBK_FORMAT]); 837 spin_unlock_irqrestore(&chip->reg_lock, flags); 838 snd_wss_mce_down(chip); 839 840 #ifdef SNDRV_DEBUG_MCE 841 snd_printk(KERN_DEBUG "init: (4)\n"); 842 #endif 843 844 snd_wss_mce_up(chip); 845 spin_lock_irqsave(&chip->reg_lock, flags); 846 if (!(chip->hardware & WSS_HW_AD1848_MASK)) 847 snd_wss_out(chip, CS4231_REC_FORMAT, 848 chip->image[CS4231_REC_FORMAT]); 849 spin_unlock_irqrestore(&chip->reg_lock, flags); 850 snd_wss_mce_down(chip); 851 snd_wss_calibrate_mute(chip, 0); 852 853 #ifdef SNDRV_DEBUG_MCE 854 snd_printk(KERN_DEBUG "init: (5)\n"); 855 #endif 856 } 857 858 static int snd_wss_open(struct snd_wss *chip, unsigned int mode) 859 { 860 unsigned long flags; 861 862 mutex_lock(&chip->open_mutex); 863 if ((chip->mode & mode) || 864 ((chip->mode & WSS_MODE_OPEN) && chip->single_dma)) { 865 mutex_unlock(&chip->open_mutex); 866 return -EAGAIN; 867 } 868 if (chip->mode & WSS_MODE_OPEN) { 869 chip->mode |= mode; 870 mutex_unlock(&chip->open_mutex); 871 return 0; 872 } 873 /* ok. now enable and ack CODEC IRQ */ 874 spin_lock_irqsave(&chip->reg_lock, flags); 875 if (!(chip->hardware & WSS_HW_AD1848_MASK)) { 876 snd_wss_out(chip, CS4231_IRQ_STATUS, 877 CS4231_PLAYBACK_IRQ | 878 CS4231_RECORD_IRQ | 879 CS4231_TIMER_IRQ); 880 snd_wss_out(chip, CS4231_IRQ_STATUS, 0); 881 } 882 wss_outb(chip, CS4231P(STATUS), 0); /* clear IRQ */ 883 wss_outb(chip, CS4231P(STATUS), 0); /* clear IRQ */ 884 chip->image[CS4231_PIN_CTRL] |= CS4231_IRQ_ENABLE; 885 snd_wss_out(chip, CS4231_PIN_CTRL, chip->image[CS4231_PIN_CTRL]); 886 if (!(chip->hardware & WSS_HW_AD1848_MASK)) { 887 snd_wss_out(chip, CS4231_IRQ_STATUS, 888 CS4231_PLAYBACK_IRQ | 889 CS4231_RECORD_IRQ | 890 CS4231_TIMER_IRQ); 891 snd_wss_out(chip, CS4231_IRQ_STATUS, 0); 892 } 893 spin_unlock_irqrestore(&chip->reg_lock, flags); 894 895 chip->mode = mode; 896 mutex_unlock(&chip->open_mutex); 897 return 0; 898 } 899 900 static void snd_wss_close(struct snd_wss *chip, unsigned int mode) 901 { 902 unsigned long flags; 903 904 mutex_lock(&chip->open_mutex); 905 chip->mode &= ~mode; 906 if (chip->mode & WSS_MODE_OPEN) { 907 mutex_unlock(&chip->open_mutex); 908 return; 909 } 910 /* disable IRQ */ 911 spin_lock_irqsave(&chip->reg_lock, flags); 912 if (!(chip->hardware & WSS_HW_AD1848_MASK)) 913 snd_wss_out(chip, CS4231_IRQ_STATUS, 0); 914 wss_outb(chip, CS4231P(STATUS), 0); /* clear IRQ */ 915 wss_outb(chip, CS4231P(STATUS), 0); /* clear IRQ */ 916 chip->image[CS4231_PIN_CTRL] &= ~CS4231_IRQ_ENABLE; 917 snd_wss_out(chip, CS4231_PIN_CTRL, chip->image[CS4231_PIN_CTRL]); 918 919 /* now disable record & playback */ 920 921 if (chip->image[CS4231_IFACE_CTRL] & (CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO | 922 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO)) { 923 spin_unlock_irqrestore(&chip->reg_lock, flags); 924 snd_wss_mce_up(chip); 925 spin_lock_irqsave(&chip->reg_lock, flags); 926 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO | 927 CS4231_RECORD_ENABLE | CS4231_RECORD_PIO); 928 snd_wss_out(chip, CS4231_IFACE_CTRL, 929 chip->image[CS4231_IFACE_CTRL]); 930 spin_unlock_irqrestore(&chip->reg_lock, flags); 931 snd_wss_mce_down(chip); 932 spin_lock_irqsave(&chip->reg_lock, flags); 933 } 934 935 /* clear IRQ again */ 936 if (!(chip->hardware & WSS_HW_AD1848_MASK)) 937 snd_wss_out(chip, CS4231_IRQ_STATUS, 0); 938 wss_outb(chip, CS4231P(STATUS), 0); /* clear IRQ */ 939 wss_outb(chip, CS4231P(STATUS), 0); /* clear IRQ */ 940 spin_unlock_irqrestore(&chip->reg_lock, flags); 941 942 chip->mode = 0; 943 mutex_unlock(&chip->open_mutex); 944 } 945 946 /* 947 * timer open/close 948 */ 949 950 static int snd_wss_timer_open(struct snd_timer *timer) 951 { 952 struct snd_wss *chip = snd_timer_chip(timer); 953 snd_wss_open(chip, WSS_MODE_TIMER); 954 return 0; 955 } 956 957 static int snd_wss_timer_close(struct snd_timer *timer) 958 { 959 struct snd_wss *chip = snd_timer_chip(timer); 960 snd_wss_close(chip, WSS_MODE_TIMER); 961 return 0; 962 } 963 964 static const struct snd_timer_hardware snd_wss_timer_table = 965 { 966 .flags = SNDRV_TIMER_HW_AUTO, 967 .resolution = 9945, 968 .ticks = 65535, 969 .open = snd_wss_timer_open, 970 .close = snd_wss_timer_close, 971 .c_resolution = snd_wss_timer_resolution, 972 .start = snd_wss_timer_start, 973 .stop = snd_wss_timer_stop, 974 }; 975 976 /* 977 * ok.. exported functions.. 978 */ 979 980 static int snd_wss_playback_hw_params(struct snd_pcm_substream *substream, 981 struct snd_pcm_hw_params *hw_params) 982 { 983 struct snd_wss *chip = snd_pcm_substream_chip(substream); 984 unsigned char new_pdfr; 985 986 new_pdfr = snd_wss_get_format(chip, params_format(hw_params), 987 params_channels(hw_params)) | 988 snd_wss_get_rate(params_rate(hw_params)); 989 chip->set_playback_format(chip, hw_params, new_pdfr); 990 return 0; 991 } 992 993 static int snd_wss_playback_prepare(struct snd_pcm_substream *substream) 994 { 995 struct snd_wss *chip = snd_pcm_substream_chip(substream); 996 struct snd_pcm_runtime *runtime = substream->runtime; 997 unsigned long flags; 998 unsigned int size = snd_pcm_lib_buffer_bytes(substream); 999 unsigned int count = snd_pcm_lib_period_bytes(substream); 1000 1001 spin_lock_irqsave(&chip->reg_lock, flags); 1002 chip->p_dma_size = size; 1003 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_PLAYBACK_ENABLE | CS4231_PLAYBACK_PIO); 1004 snd_dma_program(chip->dma1, runtime->dma_addr, size, DMA_MODE_WRITE | DMA_AUTOINIT); 1005 count = snd_wss_get_count(chip->image[CS4231_PLAYBK_FORMAT], count) - 1; 1006 snd_wss_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count); 1007 snd_wss_out(chip, CS4231_PLY_UPR_CNT, (unsigned char) (count >> 8)); 1008 spin_unlock_irqrestore(&chip->reg_lock, flags); 1009 #if 0 1010 snd_wss_debug(chip); 1011 #endif 1012 return 0; 1013 } 1014 1015 static int snd_wss_capture_hw_params(struct snd_pcm_substream *substream, 1016 struct snd_pcm_hw_params *hw_params) 1017 { 1018 struct snd_wss *chip = snd_pcm_substream_chip(substream); 1019 unsigned char new_cdfr; 1020 1021 new_cdfr = snd_wss_get_format(chip, params_format(hw_params), 1022 params_channels(hw_params)) | 1023 snd_wss_get_rate(params_rate(hw_params)); 1024 chip->set_capture_format(chip, hw_params, new_cdfr); 1025 return 0; 1026 } 1027 1028 static int snd_wss_capture_prepare(struct snd_pcm_substream *substream) 1029 { 1030 struct snd_wss *chip = snd_pcm_substream_chip(substream); 1031 struct snd_pcm_runtime *runtime = substream->runtime; 1032 unsigned long flags; 1033 unsigned int size = snd_pcm_lib_buffer_bytes(substream); 1034 unsigned int count = snd_pcm_lib_period_bytes(substream); 1035 1036 spin_lock_irqsave(&chip->reg_lock, flags); 1037 chip->c_dma_size = size; 1038 chip->image[CS4231_IFACE_CTRL] &= ~(CS4231_RECORD_ENABLE | CS4231_RECORD_PIO); 1039 snd_dma_program(chip->dma2, runtime->dma_addr, size, DMA_MODE_READ | DMA_AUTOINIT); 1040 if (chip->hardware & WSS_HW_AD1848_MASK) 1041 count = snd_wss_get_count(chip->image[CS4231_PLAYBK_FORMAT], 1042 count); 1043 else 1044 count = snd_wss_get_count(chip->image[CS4231_REC_FORMAT], 1045 count); 1046 count--; 1047 if (chip->single_dma && chip->hardware != WSS_HW_INTERWAVE) { 1048 snd_wss_out(chip, CS4231_PLY_LWR_CNT, (unsigned char) count); 1049 snd_wss_out(chip, CS4231_PLY_UPR_CNT, 1050 (unsigned char) (count >> 8)); 1051 } else { 1052 snd_wss_out(chip, CS4231_REC_LWR_CNT, (unsigned char) count); 1053 snd_wss_out(chip, CS4231_REC_UPR_CNT, 1054 (unsigned char) (count >> 8)); 1055 } 1056 spin_unlock_irqrestore(&chip->reg_lock, flags); 1057 return 0; 1058 } 1059 1060 void snd_wss_overrange(struct snd_wss *chip) 1061 { 1062 unsigned long flags; 1063 unsigned char res; 1064 1065 spin_lock_irqsave(&chip->reg_lock, flags); 1066 res = snd_wss_in(chip, CS4231_TEST_INIT); 1067 spin_unlock_irqrestore(&chip->reg_lock, flags); 1068 if (res & (0x08 | 0x02)) /* detect overrange only above 0dB; may be user selectable? */ 1069 chip->capture_substream->runtime->overrange++; 1070 } 1071 EXPORT_SYMBOL(snd_wss_overrange); 1072 1073 irqreturn_t snd_wss_interrupt(int irq, void *dev_id) 1074 { 1075 struct snd_wss *chip = dev_id; 1076 unsigned char status; 1077 1078 if (chip->hardware & WSS_HW_AD1848_MASK) 1079 /* pretend it was the only possible irq for AD1848 */ 1080 status = CS4231_PLAYBACK_IRQ; 1081 else 1082 status = snd_wss_in(chip, CS4231_IRQ_STATUS); 1083 if (status & CS4231_TIMER_IRQ) { 1084 if (chip->timer) 1085 snd_timer_interrupt(chip->timer, chip->timer->sticks); 1086 } 1087 if (chip->single_dma && chip->hardware != WSS_HW_INTERWAVE) { 1088 if (status & CS4231_PLAYBACK_IRQ) { 1089 if (chip->mode & WSS_MODE_PLAY) { 1090 if (chip->playback_substream) 1091 snd_pcm_period_elapsed(chip->playback_substream); 1092 } 1093 if (chip->mode & WSS_MODE_RECORD) { 1094 if (chip->capture_substream) { 1095 snd_wss_overrange(chip); 1096 snd_pcm_period_elapsed(chip->capture_substream); 1097 } 1098 } 1099 } 1100 } else { 1101 if (status & CS4231_PLAYBACK_IRQ) { 1102 if (chip->playback_substream) 1103 snd_pcm_period_elapsed(chip->playback_substream); 1104 } 1105 if (status & CS4231_RECORD_IRQ) { 1106 if (chip->capture_substream) { 1107 snd_wss_overrange(chip); 1108 snd_pcm_period_elapsed(chip->capture_substream); 1109 } 1110 } 1111 } 1112 1113 spin_lock(&chip->reg_lock); 1114 status = ~CS4231_ALL_IRQS | ~status; 1115 if (chip->hardware & WSS_HW_AD1848_MASK) 1116 wss_outb(chip, CS4231P(STATUS), 0); 1117 else 1118 snd_wss_out(chip, CS4231_IRQ_STATUS, status); 1119 spin_unlock(&chip->reg_lock); 1120 return IRQ_HANDLED; 1121 } 1122 EXPORT_SYMBOL(snd_wss_interrupt); 1123 1124 static snd_pcm_uframes_t snd_wss_playback_pointer(struct snd_pcm_substream *substream) 1125 { 1126 struct snd_wss *chip = snd_pcm_substream_chip(substream); 1127 size_t ptr; 1128 1129 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_PLAYBACK_ENABLE)) 1130 return 0; 1131 ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size); 1132 return bytes_to_frames(substream->runtime, ptr); 1133 } 1134 1135 static snd_pcm_uframes_t snd_wss_capture_pointer(struct snd_pcm_substream *substream) 1136 { 1137 struct snd_wss *chip = snd_pcm_substream_chip(substream); 1138 size_t ptr; 1139 1140 if (!(chip->image[CS4231_IFACE_CTRL] & CS4231_RECORD_ENABLE)) 1141 return 0; 1142 ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size); 1143 return bytes_to_frames(substream->runtime, ptr); 1144 } 1145 1146 /* 1147 1148 */ 1149 1150 static int snd_ad1848_probe(struct snd_wss *chip) 1151 { 1152 unsigned long timeout = jiffies + msecs_to_jiffies(1000); 1153 unsigned long flags; 1154 unsigned char r; 1155 unsigned short hardware = 0; 1156 int err = 0; 1157 int i; 1158 1159 while (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) { 1160 if (time_after(jiffies, timeout)) 1161 return -ENODEV; 1162 cond_resched(); 1163 } 1164 spin_lock_irqsave(&chip->reg_lock, flags); 1165 1166 /* set CS423x MODE 1 */ 1167 snd_wss_dout(chip, CS4231_MISC_INFO, 0); 1168 1169 snd_wss_dout(chip, CS4231_RIGHT_INPUT, 0x45); /* 0x55 & ~0x10 */ 1170 r = snd_wss_in(chip, CS4231_RIGHT_INPUT); 1171 if (r != 0x45) { 1172 /* RMGE always high on AD1847 */ 1173 if ((r & ~CS4231_ENABLE_MIC_GAIN) != 0x45) { 1174 err = -ENODEV; 1175 goto out; 1176 } 1177 hardware = WSS_HW_AD1847; 1178 } else { 1179 snd_wss_dout(chip, CS4231_LEFT_INPUT, 0xaa); 1180 r = snd_wss_in(chip, CS4231_LEFT_INPUT); 1181 /* L/RMGE always low on AT2320 */ 1182 if ((r | CS4231_ENABLE_MIC_GAIN) != 0xaa) { 1183 err = -ENODEV; 1184 goto out; 1185 } 1186 } 1187 1188 /* clear pending IRQ */ 1189 wss_inb(chip, CS4231P(STATUS)); 1190 wss_outb(chip, CS4231P(STATUS), 0); 1191 mb(); 1192 1193 if ((chip->hardware & WSS_HW_TYPE_MASK) != WSS_HW_DETECT) 1194 goto out; 1195 1196 if (hardware) { 1197 chip->hardware = hardware; 1198 goto out; 1199 } 1200 1201 r = snd_wss_in(chip, CS4231_MISC_INFO); 1202 1203 /* set CS423x MODE 2 */ 1204 snd_wss_dout(chip, CS4231_MISC_INFO, CS4231_MODE2); 1205 for (i = 0; i < 16; i++) { 1206 if (snd_wss_in(chip, i) != snd_wss_in(chip, 16 + i)) { 1207 /* we have more than 16 registers: check ID */ 1208 if ((r & 0xf) != 0xa) 1209 goto out_mode; 1210 /* 1211 * on CMI8330, CS4231_VERSION is volume control and 1212 * can be set to 0 1213 */ 1214 snd_wss_dout(chip, CS4231_VERSION, 0); 1215 r = snd_wss_in(chip, CS4231_VERSION) & 0xe7; 1216 if (!r) 1217 chip->hardware = WSS_HW_CMI8330; 1218 goto out_mode; 1219 } 1220 } 1221 if (r & 0x80) 1222 chip->hardware = WSS_HW_CS4248; 1223 else 1224 chip->hardware = WSS_HW_AD1848; 1225 out_mode: 1226 snd_wss_dout(chip, CS4231_MISC_INFO, 0); 1227 out: 1228 spin_unlock_irqrestore(&chip->reg_lock, flags); 1229 return err; 1230 } 1231 1232 static int snd_wss_probe(struct snd_wss *chip) 1233 { 1234 unsigned long flags; 1235 int i, id, rev, regnum; 1236 unsigned char *ptr; 1237 unsigned int hw; 1238 1239 id = snd_ad1848_probe(chip); 1240 if (id < 0) 1241 return id; 1242 1243 hw = chip->hardware; 1244 if ((hw & WSS_HW_TYPE_MASK) == WSS_HW_DETECT) { 1245 for (i = 0; i < 50; i++) { 1246 mb(); 1247 if (wss_inb(chip, CS4231P(REGSEL)) & CS4231_INIT) 1248 msleep(2); 1249 else { 1250 spin_lock_irqsave(&chip->reg_lock, flags); 1251 snd_wss_out(chip, CS4231_MISC_INFO, 1252 CS4231_MODE2); 1253 id = snd_wss_in(chip, CS4231_MISC_INFO) & 0x0f; 1254 spin_unlock_irqrestore(&chip->reg_lock, flags); 1255 if (id == 0x0a) 1256 break; /* this is valid value */ 1257 } 1258 } 1259 snd_printdd("wss: port = 0x%lx, id = 0x%x\n", chip->port, id); 1260 if (id != 0x0a) 1261 return -ENODEV; /* no valid device found */ 1262 1263 rev = snd_wss_in(chip, CS4231_VERSION) & 0xe7; 1264 snd_printdd("CS4231: VERSION (I25) = 0x%x\n", rev); 1265 if (rev == 0x80) { 1266 unsigned char tmp = snd_wss_in(chip, 23); 1267 snd_wss_out(chip, 23, ~tmp); 1268 if (snd_wss_in(chip, 23) != tmp) 1269 chip->hardware = WSS_HW_AD1845; 1270 else 1271 chip->hardware = WSS_HW_CS4231; 1272 } else if (rev == 0xa0) { 1273 chip->hardware = WSS_HW_CS4231A; 1274 } else if (rev == 0xa2) { 1275 chip->hardware = WSS_HW_CS4232; 1276 } else if (rev == 0xb2) { 1277 chip->hardware = WSS_HW_CS4232A; 1278 } else if (rev == 0x83) { 1279 chip->hardware = WSS_HW_CS4236; 1280 } else if (rev == 0x03) { 1281 chip->hardware = WSS_HW_CS4236B; 1282 } else { 1283 snd_printk(KERN_ERR 1284 "unknown CS chip with version 0x%x\n", rev); 1285 return -ENODEV; /* unknown CS4231 chip? */ 1286 } 1287 } 1288 spin_lock_irqsave(&chip->reg_lock, flags); 1289 wss_inb(chip, CS4231P(STATUS)); /* clear any pendings IRQ */ 1290 wss_outb(chip, CS4231P(STATUS), 0); 1291 mb(); 1292 spin_unlock_irqrestore(&chip->reg_lock, flags); 1293 1294 if (!(chip->hardware & WSS_HW_AD1848_MASK)) 1295 chip->image[CS4231_MISC_INFO] = CS4231_MODE2; 1296 switch (chip->hardware) { 1297 case WSS_HW_INTERWAVE: 1298 chip->image[CS4231_MISC_INFO] = CS4231_IW_MODE3; 1299 break; 1300 case WSS_HW_CS4235: 1301 case WSS_HW_CS4236B: 1302 case WSS_HW_CS4237B: 1303 case WSS_HW_CS4238B: 1304 case WSS_HW_CS4239: 1305 if (hw == WSS_HW_DETECT3) 1306 chip->image[CS4231_MISC_INFO] = CS4231_4236_MODE3; 1307 else 1308 chip->hardware = WSS_HW_CS4236; 1309 break; 1310 } 1311 1312 chip->image[CS4231_IFACE_CTRL] = 1313 (chip->image[CS4231_IFACE_CTRL] & ~CS4231_SINGLE_DMA) | 1314 (chip->single_dma ? CS4231_SINGLE_DMA : 0); 1315 if (chip->hardware != WSS_HW_OPTI93X) { 1316 chip->image[CS4231_ALT_FEATURE_1] = 0x80; 1317 chip->image[CS4231_ALT_FEATURE_2] = 1318 chip->hardware == WSS_HW_INTERWAVE ? 0xc2 : 0x01; 1319 } 1320 /* enable fine grained frequency selection */ 1321 if (chip->hardware == WSS_HW_AD1845) 1322 chip->image[AD1845_PWR_DOWN] = 8; 1323 1324 ptr = (unsigned char *) &chip->image; 1325 regnum = (chip->hardware & WSS_HW_AD1848_MASK) ? 16 : 32; 1326 snd_wss_mce_down(chip); 1327 spin_lock_irqsave(&chip->reg_lock, flags); 1328 for (i = 0; i < regnum; i++) /* ok.. fill all registers */ 1329 snd_wss_out(chip, i, *ptr++); 1330 spin_unlock_irqrestore(&chip->reg_lock, flags); 1331 snd_wss_mce_up(chip); 1332 snd_wss_mce_down(chip); 1333 1334 mdelay(2); 1335 1336 /* ok.. try check hardware version for CS4236+ chips */ 1337 if ((hw & WSS_HW_TYPE_MASK) == WSS_HW_DETECT) { 1338 if (chip->hardware == WSS_HW_CS4236B) { 1339 rev = snd_cs4236_ext_in(chip, CS4236_VERSION); 1340 snd_cs4236_ext_out(chip, CS4236_VERSION, 0xff); 1341 id = snd_cs4236_ext_in(chip, CS4236_VERSION); 1342 snd_cs4236_ext_out(chip, CS4236_VERSION, rev); 1343 snd_printdd("CS4231: ext version; rev = 0x%x, id = 0x%x\n", rev, id); 1344 if ((id & 0x1f) == 0x1d) { /* CS4235 */ 1345 chip->hardware = WSS_HW_CS4235; 1346 switch (id >> 5) { 1347 case 4: 1348 case 5: 1349 case 6: 1350 break; 1351 default: 1352 snd_printk(KERN_WARNING 1353 "unknown CS4235 chip " 1354 "(enhanced version = 0x%x)\n", 1355 id); 1356 } 1357 } else if ((id & 0x1f) == 0x0b) { /* CS4236/B */ 1358 switch (id >> 5) { 1359 case 4: 1360 case 5: 1361 case 6: 1362 case 7: 1363 chip->hardware = WSS_HW_CS4236B; 1364 break; 1365 default: 1366 snd_printk(KERN_WARNING 1367 "unknown CS4236 chip " 1368 "(enhanced version = 0x%x)\n", 1369 id); 1370 } 1371 } else if ((id & 0x1f) == 0x08) { /* CS4237B */ 1372 chip->hardware = WSS_HW_CS4237B; 1373 switch (id >> 5) { 1374 case 4: 1375 case 5: 1376 case 6: 1377 case 7: 1378 break; 1379 default: 1380 snd_printk(KERN_WARNING 1381 "unknown CS4237B chip " 1382 "(enhanced version = 0x%x)\n", 1383 id); 1384 } 1385 } else if ((id & 0x1f) == 0x09) { /* CS4238B */ 1386 chip->hardware = WSS_HW_CS4238B; 1387 switch (id >> 5) { 1388 case 5: 1389 case 6: 1390 case 7: 1391 break; 1392 default: 1393 snd_printk(KERN_WARNING 1394 "unknown CS4238B chip " 1395 "(enhanced version = 0x%x)\n", 1396 id); 1397 } 1398 } else if ((id & 0x1f) == 0x1e) { /* CS4239 */ 1399 chip->hardware = WSS_HW_CS4239; 1400 switch (id >> 5) { 1401 case 4: 1402 case 5: 1403 case 6: 1404 break; 1405 default: 1406 snd_printk(KERN_WARNING 1407 "unknown CS4239 chip " 1408 "(enhanced version = 0x%x)\n", 1409 id); 1410 } 1411 } else { 1412 snd_printk(KERN_WARNING 1413 "unknown CS4236/CS423xB chip " 1414 "(enhanced version = 0x%x)\n", id); 1415 } 1416 } 1417 } 1418 return 0; /* all things are ok.. */ 1419 } 1420 1421 /* 1422 1423 */ 1424 1425 static const struct snd_pcm_hardware snd_wss_playback = 1426 { 1427 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 1428 SNDRV_PCM_INFO_MMAP_VALID | 1429 SNDRV_PCM_INFO_SYNC_START), 1430 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_IMA_ADPCM | 1431 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE), 1432 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000, 1433 .rate_min = 5510, 1434 .rate_max = 48000, 1435 .channels_min = 1, 1436 .channels_max = 2, 1437 .buffer_bytes_max = (128*1024), 1438 .period_bytes_min = 64, 1439 .period_bytes_max = (128*1024), 1440 .periods_min = 1, 1441 .periods_max = 1024, 1442 .fifo_size = 0, 1443 }; 1444 1445 static const struct snd_pcm_hardware snd_wss_capture = 1446 { 1447 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 1448 SNDRV_PCM_INFO_MMAP_VALID | 1449 SNDRV_PCM_INFO_RESUME | 1450 SNDRV_PCM_INFO_SYNC_START), 1451 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | SNDRV_PCM_FMTBIT_IMA_ADPCM | 1452 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S16_BE), 1453 .rates = SNDRV_PCM_RATE_KNOT | SNDRV_PCM_RATE_8000_48000, 1454 .rate_min = 5510, 1455 .rate_max = 48000, 1456 .channels_min = 1, 1457 .channels_max = 2, 1458 .buffer_bytes_max = (128*1024), 1459 .period_bytes_min = 64, 1460 .period_bytes_max = (128*1024), 1461 .periods_min = 1, 1462 .periods_max = 1024, 1463 .fifo_size = 0, 1464 }; 1465 1466 /* 1467 1468 */ 1469 1470 static int snd_wss_playback_open(struct snd_pcm_substream *substream) 1471 { 1472 struct snd_wss *chip = snd_pcm_substream_chip(substream); 1473 struct snd_pcm_runtime *runtime = substream->runtime; 1474 int err; 1475 1476 runtime->hw = snd_wss_playback; 1477 1478 /* hardware limitation of older chipsets */ 1479 if (chip->hardware & WSS_HW_AD1848_MASK) 1480 runtime->hw.formats &= ~(SNDRV_PCM_FMTBIT_IMA_ADPCM | 1481 SNDRV_PCM_FMTBIT_S16_BE); 1482 1483 /* hardware bug in InterWave chipset */ 1484 if (chip->hardware == WSS_HW_INTERWAVE && chip->dma1 > 3) 1485 runtime->hw.formats &= ~SNDRV_PCM_FMTBIT_MU_LAW; 1486 1487 /* hardware limitation of cheap chips */ 1488 if (chip->hardware == WSS_HW_CS4235 || 1489 chip->hardware == WSS_HW_CS4239) 1490 runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE; 1491 1492 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max); 1493 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max); 1494 1495 if (chip->claim_dma) { 1496 err = chip->claim_dma(chip, chip->dma_private_data, chip->dma1); 1497 if (err < 0) 1498 return err; 1499 } 1500 1501 err = snd_wss_open(chip, WSS_MODE_PLAY); 1502 if (err < 0) { 1503 if (chip->release_dma) 1504 chip->release_dma(chip, chip->dma_private_data, chip->dma1); 1505 return err; 1506 } 1507 chip->playback_substream = substream; 1508 snd_pcm_set_sync(substream); 1509 chip->rate_constraint(runtime); 1510 return 0; 1511 } 1512 1513 static int snd_wss_capture_open(struct snd_pcm_substream *substream) 1514 { 1515 struct snd_wss *chip = snd_pcm_substream_chip(substream); 1516 struct snd_pcm_runtime *runtime = substream->runtime; 1517 int err; 1518 1519 runtime->hw = snd_wss_capture; 1520 1521 /* hardware limitation of older chipsets */ 1522 if (chip->hardware & WSS_HW_AD1848_MASK) 1523 runtime->hw.formats &= ~(SNDRV_PCM_FMTBIT_IMA_ADPCM | 1524 SNDRV_PCM_FMTBIT_S16_BE); 1525 1526 /* hardware limitation of cheap chips */ 1527 if (chip->hardware == WSS_HW_CS4235 || 1528 chip->hardware == WSS_HW_CS4239 || 1529 chip->hardware == WSS_HW_OPTI93X) 1530 runtime->hw.formats = SNDRV_PCM_FMTBIT_U8 | 1531 SNDRV_PCM_FMTBIT_S16_LE; 1532 1533 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max); 1534 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max); 1535 1536 if (chip->claim_dma) { 1537 err = chip->claim_dma(chip, chip->dma_private_data, chip->dma2); 1538 if (err < 0) 1539 return err; 1540 } 1541 1542 err = snd_wss_open(chip, WSS_MODE_RECORD); 1543 if (err < 0) { 1544 if (chip->release_dma) 1545 chip->release_dma(chip, chip->dma_private_data, chip->dma2); 1546 return err; 1547 } 1548 chip->capture_substream = substream; 1549 snd_pcm_set_sync(substream); 1550 chip->rate_constraint(runtime); 1551 return 0; 1552 } 1553 1554 static int snd_wss_playback_close(struct snd_pcm_substream *substream) 1555 { 1556 struct snd_wss *chip = snd_pcm_substream_chip(substream); 1557 1558 chip->playback_substream = NULL; 1559 snd_wss_close(chip, WSS_MODE_PLAY); 1560 return 0; 1561 } 1562 1563 static int snd_wss_capture_close(struct snd_pcm_substream *substream) 1564 { 1565 struct snd_wss *chip = snd_pcm_substream_chip(substream); 1566 1567 chip->capture_substream = NULL; 1568 snd_wss_close(chip, WSS_MODE_RECORD); 1569 return 0; 1570 } 1571 1572 static void snd_wss_thinkpad_twiddle(struct snd_wss *chip, int on) 1573 { 1574 int tmp; 1575 1576 if (!chip->thinkpad_flag) 1577 return; 1578 1579 outb(0x1c, AD1848_THINKPAD_CTL_PORT1); 1580 tmp = inb(AD1848_THINKPAD_CTL_PORT2); 1581 1582 if (on) 1583 /* turn it on */ 1584 tmp |= AD1848_THINKPAD_CS4248_ENABLE_BIT; 1585 else 1586 /* turn it off */ 1587 tmp &= ~AD1848_THINKPAD_CS4248_ENABLE_BIT; 1588 1589 outb(tmp, AD1848_THINKPAD_CTL_PORT2); 1590 } 1591 1592 #ifdef CONFIG_PM 1593 1594 /* lowlevel suspend callback for CS4231 */ 1595 static void snd_wss_suspend(struct snd_wss *chip) 1596 { 1597 int reg; 1598 unsigned long flags; 1599 1600 spin_lock_irqsave(&chip->reg_lock, flags); 1601 for (reg = 0; reg < 32; reg++) 1602 chip->image[reg] = snd_wss_in(chip, reg); 1603 spin_unlock_irqrestore(&chip->reg_lock, flags); 1604 if (chip->thinkpad_flag) 1605 snd_wss_thinkpad_twiddle(chip, 0); 1606 } 1607 1608 /* lowlevel resume callback for CS4231 */ 1609 static void snd_wss_resume(struct snd_wss *chip) 1610 { 1611 int reg; 1612 unsigned long flags; 1613 /* int timeout; */ 1614 1615 if (chip->thinkpad_flag) 1616 snd_wss_thinkpad_twiddle(chip, 1); 1617 snd_wss_mce_up(chip); 1618 spin_lock_irqsave(&chip->reg_lock, flags); 1619 for (reg = 0; reg < 32; reg++) { 1620 switch (reg) { 1621 case CS4231_VERSION: 1622 break; 1623 default: 1624 snd_wss_out(chip, reg, chip->image[reg]); 1625 break; 1626 } 1627 } 1628 /* Yamaha needs this to resume properly */ 1629 if (chip->hardware == WSS_HW_OPL3SA2) 1630 snd_wss_out(chip, CS4231_PLAYBK_FORMAT, 1631 chip->image[CS4231_PLAYBK_FORMAT]); 1632 spin_unlock_irqrestore(&chip->reg_lock, flags); 1633 #if 1 1634 snd_wss_mce_down(chip); 1635 #else 1636 /* The following is a workaround to avoid freeze after resume on TP600E. 1637 This is the first half of copy of snd_wss_mce_down(), but doesn't 1638 include rescheduling. -- iwai 1639 */ 1640 snd_wss_busy_wait(chip); 1641 spin_lock_irqsave(&chip->reg_lock, flags); 1642 chip->mce_bit &= ~CS4231_MCE; 1643 timeout = wss_inb(chip, CS4231P(REGSEL)); 1644 wss_outb(chip, CS4231P(REGSEL), chip->mce_bit | (timeout & 0x1f)); 1645 spin_unlock_irqrestore(&chip->reg_lock, flags); 1646 if (timeout == 0x80) 1647 snd_printk(KERN_ERR "down [0x%lx]: serious init problem " 1648 "- codec still busy\n", chip->port); 1649 if ((timeout & CS4231_MCE) == 0 || 1650 !(chip->hardware & (WSS_HW_CS4231_MASK | WSS_HW_CS4232_MASK))) { 1651 return; 1652 } 1653 snd_wss_busy_wait(chip); 1654 #endif 1655 } 1656 #endif /* CONFIG_PM */ 1657 1658 const char *snd_wss_chip_id(struct snd_wss *chip) 1659 { 1660 switch (chip->hardware) { 1661 case WSS_HW_CS4231: 1662 return "CS4231"; 1663 case WSS_HW_CS4231A: 1664 return "CS4231A"; 1665 case WSS_HW_CS4232: 1666 return "CS4232"; 1667 case WSS_HW_CS4232A: 1668 return "CS4232A"; 1669 case WSS_HW_CS4235: 1670 return "CS4235"; 1671 case WSS_HW_CS4236: 1672 return "CS4236"; 1673 case WSS_HW_CS4236B: 1674 return "CS4236B"; 1675 case WSS_HW_CS4237B: 1676 return "CS4237B"; 1677 case WSS_HW_CS4238B: 1678 return "CS4238B"; 1679 case WSS_HW_CS4239: 1680 return "CS4239"; 1681 case WSS_HW_INTERWAVE: 1682 return "AMD InterWave"; 1683 case WSS_HW_OPL3SA2: 1684 return chip->card->shortname; 1685 case WSS_HW_AD1845: 1686 return "AD1845"; 1687 case WSS_HW_OPTI93X: 1688 return "OPTi 93x"; 1689 case WSS_HW_AD1847: 1690 return "AD1847"; 1691 case WSS_HW_AD1848: 1692 return "AD1848"; 1693 case WSS_HW_CS4248: 1694 return "CS4248"; 1695 case WSS_HW_CMI8330: 1696 return "CMI8330/C3D"; 1697 default: 1698 return "???"; 1699 } 1700 } 1701 EXPORT_SYMBOL(snd_wss_chip_id); 1702 1703 static int snd_wss_new(struct snd_card *card, 1704 unsigned short hardware, 1705 unsigned short hwshare, 1706 struct snd_wss **rchip) 1707 { 1708 struct snd_wss *chip; 1709 1710 *rchip = NULL; 1711 chip = devm_kzalloc(card->dev, sizeof(*chip), GFP_KERNEL); 1712 if (chip == NULL) 1713 return -ENOMEM; 1714 chip->hardware = hardware; 1715 chip->hwshare = hwshare; 1716 1717 spin_lock_init(&chip->reg_lock); 1718 mutex_init(&chip->mce_mutex); 1719 mutex_init(&chip->open_mutex); 1720 chip->card = card; 1721 chip->rate_constraint = snd_wss_xrate; 1722 chip->set_playback_format = snd_wss_playback_format; 1723 chip->set_capture_format = snd_wss_capture_format; 1724 if (chip->hardware == WSS_HW_OPTI93X) 1725 memcpy(&chip->image, &snd_opti93x_original_image, 1726 sizeof(snd_opti93x_original_image)); 1727 else 1728 memcpy(&chip->image, &snd_wss_original_image, 1729 sizeof(snd_wss_original_image)); 1730 if (chip->hardware & WSS_HW_AD1848_MASK) { 1731 chip->image[CS4231_PIN_CTRL] = 0; 1732 chip->image[CS4231_TEST_INIT] = 0; 1733 } 1734 1735 *rchip = chip; 1736 return 0; 1737 } 1738 1739 int snd_wss_create(struct snd_card *card, 1740 unsigned long port, 1741 unsigned long cport, 1742 int irq, int dma1, int dma2, 1743 unsigned short hardware, 1744 unsigned short hwshare, 1745 struct snd_wss **rchip) 1746 { 1747 struct snd_wss *chip; 1748 int err; 1749 1750 err = snd_wss_new(card, hardware, hwshare, &chip); 1751 if (err < 0) 1752 return err; 1753 1754 chip->irq = -1; 1755 chip->dma1 = -1; 1756 chip->dma2 = -1; 1757 1758 chip->res_port = devm_request_region(card->dev, port, 4, "WSS"); 1759 if (!chip->res_port) { 1760 snd_printk(KERN_ERR "wss: can't grab port 0x%lx\n", port); 1761 return -EBUSY; 1762 } 1763 chip->port = port; 1764 if ((long)cport >= 0) { 1765 chip->res_cport = devm_request_region(card->dev, cport, 8, 1766 "CS4232 Control"); 1767 if (!chip->res_cport) { 1768 snd_printk(KERN_ERR 1769 "wss: can't grab control port 0x%lx\n", cport); 1770 return -ENODEV; 1771 } 1772 } 1773 chip->cport = cport; 1774 if (!(hwshare & WSS_HWSHARE_IRQ)) 1775 if (devm_request_irq(card->dev, irq, snd_wss_interrupt, 0, 1776 "WSS", (void *) chip)) { 1777 snd_printk(KERN_ERR "wss: can't grab IRQ %d\n", irq); 1778 return -EBUSY; 1779 } 1780 chip->irq = irq; 1781 card->sync_irq = chip->irq; 1782 if (!(hwshare & WSS_HWSHARE_DMA1) && 1783 snd_devm_request_dma(card->dev, dma1, "WSS - 1")) { 1784 snd_printk(KERN_ERR "wss: can't grab DMA1 %d\n", dma1); 1785 return -EBUSY; 1786 } 1787 chip->dma1 = dma1; 1788 if (!(hwshare & WSS_HWSHARE_DMA2) && dma1 != dma2 && dma2 >= 0 && 1789 snd_devm_request_dma(card->dev, dma2, "WSS - 2")) { 1790 snd_printk(KERN_ERR "wss: can't grab DMA2 %d\n", dma2); 1791 return -EBUSY; 1792 } 1793 if (dma1 == dma2 || dma2 < 0) { 1794 chip->single_dma = 1; 1795 chip->dma2 = chip->dma1; 1796 } else 1797 chip->dma2 = dma2; 1798 1799 if (hardware == WSS_HW_THINKPAD) { 1800 chip->thinkpad_flag = 1; 1801 chip->hardware = WSS_HW_DETECT; /* reset */ 1802 snd_wss_thinkpad_twiddle(chip, 1); 1803 } 1804 1805 /* global setup */ 1806 if (snd_wss_probe(chip) < 0) 1807 return -ENODEV; 1808 snd_wss_init(chip); 1809 1810 #if 0 1811 if (chip->hardware & WSS_HW_CS4232_MASK) { 1812 if (chip->res_cport == NULL) 1813 snd_printk(KERN_ERR "CS4232 control port features are " 1814 "not accessible\n"); 1815 } 1816 #endif 1817 1818 #ifdef CONFIG_PM 1819 /* Power Management */ 1820 chip->suspend = snd_wss_suspend; 1821 chip->resume = snd_wss_resume; 1822 #endif 1823 1824 *rchip = chip; 1825 return 0; 1826 } 1827 EXPORT_SYMBOL(snd_wss_create); 1828 1829 static const struct snd_pcm_ops snd_wss_playback_ops = { 1830 .open = snd_wss_playback_open, 1831 .close = snd_wss_playback_close, 1832 .hw_params = snd_wss_playback_hw_params, 1833 .prepare = snd_wss_playback_prepare, 1834 .trigger = snd_wss_trigger, 1835 .pointer = snd_wss_playback_pointer, 1836 }; 1837 1838 static const struct snd_pcm_ops snd_wss_capture_ops = { 1839 .open = snd_wss_capture_open, 1840 .close = snd_wss_capture_close, 1841 .hw_params = snd_wss_capture_hw_params, 1842 .prepare = snd_wss_capture_prepare, 1843 .trigger = snd_wss_trigger, 1844 .pointer = snd_wss_capture_pointer, 1845 }; 1846 1847 int snd_wss_pcm(struct snd_wss *chip, int device) 1848 { 1849 struct snd_pcm *pcm; 1850 int err; 1851 1852 err = snd_pcm_new(chip->card, "WSS", device, 1, 1, &pcm); 1853 if (err < 0) 1854 return err; 1855 1856 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_wss_playback_ops); 1857 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_wss_capture_ops); 1858 1859 /* global setup */ 1860 pcm->private_data = chip; 1861 pcm->info_flags = 0; 1862 if (chip->single_dma) 1863 pcm->info_flags |= SNDRV_PCM_INFO_HALF_DUPLEX; 1864 if (chip->hardware != WSS_HW_INTERWAVE) 1865 pcm->info_flags |= SNDRV_PCM_INFO_JOINT_DUPLEX; 1866 strcpy(pcm->name, snd_wss_chip_id(chip)); 1867 1868 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, chip->card->dev, 1869 64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024); 1870 1871 chip->pcm = pcm; 1872 return 0; 1873 } 1874 EXPORT_SYMBOL(snd_wss_pcm); 1875 1876 static void snd_wss_timer_free(struct snd_timer *timer) 1877 { 1878 struct snd_wss *chip = timer->private_data; 1879 chip->timer = NULL; 1880 } 1881 1882 int snd_wss_timer(struct snd_wss *chip, int device) 1883 { 1884 struct snd_timer *timer; 1885 struct snd_timer_id tid; 1886 int err; 1887 1888 /* Timer initialization */ 1889 tid.dev_class = SNDRV_TIMER_CLASS_CARD; 1890 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; 1891 tid.card = chip->card->number; 1892 tid.device = device; 1893 tid.subdevice = 0; 1894 err = snd_timer_new(chip->card, "CS4231", &tid, &timer); 1895 if (err < 0) 1896 return err; 1897 strcpy(timer->name, snd_wss_chip_id(chip)); 1898 timer->private_data = chip; 1899 timer->private_free = snd_wss_timer_free; 1900 timer->hw = snd_wss_timer_table; 1901 chip->timer = timer; 1902 return 0; 1903 } 1904 EXPORT_SYMBOL(snd_wss_timer); 1905 1906 /* 1907 * MIXER part 1908 */ 1909 1910 static int snd_wss_info_mux(struct snd_kcontrol *kcontrol, 1911 struct snd_ctl_elem_info *uinfo) 1912 { 1913 static const char * const texts[4] = { 1914 "Line", "Aux", "Mic", "Mix" 1915 }; 1916 static const char * const opl3sa_texts[4] = { 1917 "Line", "CD", "Mic", "Mix" 1918 }; 1919 static const char * const gusmax_texts[4] = { 1920 "Line", "Synth", "Mic", "Mix" 1921 }; 1922 const char * const *ptexts = texts; 1923 struct snd_wss *chip = snd_kcontrol_chip(kcontrol); 1924 1925 if (snd_BUG_ON(!chip->card)) 1926 return -EINVAL; 1927 if (!strcmp(chip->card->driver, "GUS MAX")) 1928 ptexts = gusmax_texts; 1929 switch (chip->hardware) { 1930 case WSS_HW_INTERWAVE: 1931 ptexts = gusmax_texts; 1932 break; 1933 case WSS_HW_OPTI93X: 1934 case WSS_HW_OPL3SA2: 1935 ptexts = opl3sa_texts; 1936 break; 1937 } 1938 return snd_ctl_enum_info(uinfo, 2, 4, ptexts); 1939 } 1940 1941 static int snd_wss_get_mux(struct snd_kcontrol *kcontrol, 1942 struct snd_ctl_elem_value *ucontrol) 1943 { 1944 struct snd_wss *chip = snd_kcontrol_chip(kcontrol); 1945 unsigned long flags; 1946 1947 spin_lock_irqsave(&chip->reg_lock, flags); 1948 ucontrol->value.enumerated.item[0] = (chip->image[CS4231_LEFT_INPUT] & CS4231_MIXS_ALL) >> 6; 1949 ucontrol->value.enumerated.item[1] = (chip->image[CS4231_RIGHT_INPUT] & CS4231_MIXS_ALL) >> 6; 1950 spin_unlock_irqrestore(&chip->reg_lock, flags); 1951 return 0; 1952 } 1953 1954 static int snd_wss_put_mux(struct snd_kcontrol *kcontrol, 1955 struct snd_ctl_elem_value *ucontrol) 1956 { 1957 struct snd_wss *chip = snd_kcontrol_chip(kcontrol); 1958 unsigned long flags; 1959 unsigned short left, right; 1960 int change; 1961 1962 if (ucontrol->value.enumerated.item[0] > 3 || 1963 ucontrol->value.enumerated.item[1] > 3) 1964 return -EINVAL; 1965 left = ucontrol->value.enumerated.item[0] << 6; 1966 right = ucontrol->value.enumerated.item[1] << 6; 1967 spin_lock_irqsave(&chip->reg_lock, flags); 1968 left = (chip->image[CS4231_LEFT_INPUT] & ~CS4231_MIXS_ALL) | left; 1969 right = (chip->image[CS4231_RIGHT_INPUT] & ~CS4231_MIXS_ALL) | right; 1970 change = left != chip->image[CS4231_LEFT_INPUT] || 1971 right != chip->image[CS4231_RIGHT_INPUT]; 1972 snd_wss_out(chip, CS4231_LEFT_INPUT, left); 1973 snd_wss_out(chip, CS4231_RIGHT_INPUT, right); 1974 spin_unlock_irqrestore(&chip->reg_lock, flags); 1975 return change; 1976 } 1977 1978 int snd_wss_info_single(struct snd_kcontrol *kcontrol, 1979 struct snd_ctl_elem_info *uinfo) 1980 { 1981 int mask = (kcontrol->private_value >> 16) & 0xff; 1982 1983 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 1984 uinfo->count = 1; 1985 uinfo->value.integer.min = 0; 1986 uinfo->value.integer.max = mask; 1987 return 0; 1988 } 1989 EXPORT_SYMBOL(snd_wss_info_single); 1990 1991 int snd_wss_get_single(struct snd_kcontrol *kcontrol, 1992 struct snd_ctl_elem_value *ucontrol) 1993 { 1994 struct snd_wss *chip = snd_kcontrol_chip(kcontrol); 1995 unsigned long flags; 1996 int reg = kcontrol->private_value & 0xff; 1997 int shift = (kcontrol->private_value >> 8) & 0xff; 1998 int mask = (kcontrol->private_value >> 16) & 0xff; 1999 int invert = (kcontrol->private_value >> 24) & 0xff; 2000 2001 spin_lock_irqsave(&chip->reg_lock, flags); 2002 ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask; 2003 spin_unlock_irqrestore(&chip->reg_lock, flags); 2004 if (invert) 2005 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; 2006 return 0; 2007 } 2008 EXPORT_SYMBOL(snd_wss_get_single); 2009 2010 int snd_wss_put_single(struct snd_kcontrol *kcontrol, 2011 struct snd_ctl_elem_value *ucontrol) 2012 { 2013 struct snd_wss *chip = snd_kcontrol_chip(kcontrol); 2014 unsigned long flags; 2015 int reg = kcontrol->private_value & 0xff; 2016 int shift = (kcontrol->private_value >> 8) & 0xff; 2017 int mask = (kcontrol->private_value >> 16) & 0xff; 2018 int invert = (kcontrol->private_value >> 24) & 0xff; 2019 int change; 2020 unsigned short val; 2021 2022 val = (ucontrol->value.integer.value[0] & mask); 2023 if (invert) 2024 val = mask - val; 2025 val <<= shift; 2026 spin_lock_irqsave(&chip->reg_lock, flags); 2027 val = (chip->image[reg] & ~(mask << shift)) | val; 2028 change = val != chip->image[reg]; 2029 snd_wss_out(chip, reg, val); 2030 spin_unlock_irqrestore(&chip->reg_lock, flags); 2031 return change; 2032 } 2033 EXPORT_SYMBOL(snd_wss_put_single); 2034 2035 int snd_wss_info_double(struct snd_kcontrol *kcontrol, 2036 struct snd_ctl_elem_info *uinfo) 2037 { 2038 int mask = (kcontrol->private_value >> 24) & 0xff; 2039 2040 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 2041 uinfo->count = 2; 2042 uinfo->value.integer.min = 0; 2043 uinfo->value.integer.max = mask; 2044 return 0; 2045 } 2046 EXPORT_SYMBOL(snd_wss_info_double); 2047 2048 int snd_wss_get_double(struct snd_kcontrol *kcontrol, 2049 struct snd_ctl_elem_value *ucontrol) 2050 { 2051 struct snd_wss *chip = snd_kcontrol_chip(kcontrol); 2052 unsigned long flags; 2053 int left_reg = kcontrol->private_value & 0xff; 2054 int right_reg = (kcontrol->private_value >> 8) & 0xff; 2055 int shift_left = (kcontrol->private_value >> 16) & 0x07; 2056 int shift_right = (kcontrol->private_value >> 19) & 0x07; 2057 int mask = (kcontrol->private_value >> 24) & 0xff; 2058 int invert = (kcontrol->private_value >> 22) & 1; 2059 2060 spin_lock_irqsave(&chip->reg_lock, flags); 2061 ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask; 2062 ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask; 2063 spin_unlock_irqrestore(&chip->reg_lock, flags); 2064 if (invert) { 2065 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; 2066 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1]; 2067 } 2068 return 0; 2069 } 2070 EXPORT_SYMBOL(snd_wss_get_double); 2071 2072 int snd_wss_put_double(struct snd_kcontrol *kcontrol, 2073 struct snd_ctl_elem_value *ucontrol) 2074 { 2075 struct snd_wss *chip = snd_kcontrol_chip(kcontrol); 2076 unsigned long flags; 2077 int left_reg = kcontrol->private_value & 0xff; 2078 int right_reg = (kcontrol->private_value >> 8) & 0xff; 2079 int shift_left = (kcontrol->private_value >> 16) & 0x07; 2080 int shift_right = (kcontrol->private_value >> 19) & 0x07; 2081 int mask = (kcontrol->private_value >> 24) & 0xff; 2082 int invert = (kcontrol->private_value >> 22) & 1; 2083 int change; 2084 unsigned short val1, val2; 2085 2086 val1 = ucontrol->value.integer.value[0] & mask; 2087 val2 = ucontrol->value.integer.value[1] & mask; 2088 if (invert) { 2089 val1 = mask - val1; 2090 val2 = mask - val2; 2091 } 2092 val1 <<= shift_left; 2093 val2 <<= shift_right; 2094 spin_lock_irqsave(&chip->reg_lock, flags); 2095 if (left_reg != right_reg) { 2096 val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1; 2097 val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2; 2098 change = val1 != chip->image[left_reg] || 2099 val2 != chip->image[right_reg]; 2100 snd_wss_out(chip, left_reg, val1); 2101 snd_wss_out(chip, right_reg, val2); 2102 } else { 2103 mask = (mask << shift_left) | (mask << shift_right); 2104 val1 = (chip->image[left_reg] & ~mask) | val1 | val2; 2105 change = val1 != chip->image[left_reg]; 2106 snd_wss_out(chip, left_reg, val1); 2107 } 2108 spin_unlock_irqrestore(&chip->reg_lock, flags); 2109 return change; 2110 } 2111 EXPORT_SYMBOL(snd_wss_put_double); 2112 2113 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0); 2114 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0); 2115 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0); 2116 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0); 2117 2118 static const struct snd_kcontrol_new snd_wss_controls[] = { 2119 WSS_DOUBLE("PCM Playback Switch", 0, 2120 CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1), 2121 WSS_DOUBLE_TLV("PCM Playback Volume", 0, 2122 CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1, 2123 db_scale_6bit), 2124 WSS_DOUBLE("Aux Playback Switch", 0, 2125 CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1), 2126 WSS_DOUBLE_TLV("Aux Playback Volume", 0, 2127 CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1, 2128 db_scale_5bit_12db_max), 2129 WSS_DOUBLE("Aux Playback Switch", 1, 2130 CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1), 2131 WSS_DOUBLE_TLV("Aux Playback Volume", 1, 2132 CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1, 2133 db_scale_5bit_12db_max), 2134 WSS_DOUBLE_TLV("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 2135 0, 0, 15, 0, db_scale_rec_gain), 2136 { 2137 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 2138 .name = "Capture Source", 2139 .info = snd_wss_info_mux, 2140 .get = snd_wss_get_mux, 2141 .put = snd_wss_put_mux, 2142 }, 2143 WSS_DOUBLE("Mic Boost (+20dB)", 0, 2144 CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT, 5, 5, 1, 0), 2145 WSS_SINGLE("Loopback Capture Switch", 0, 2146 CS4231_LOOPBACK, 0, 1, 0), 2147 WSS_SINGLE_TLV("Loopback Capture Volume", 0, CS4231_LOOPBACK, 2, 63, 1, 2148 db_scale_6bit), 2149 WSS_DOUBLE("Line Playback Switch", 0, 2150 CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 7, 7, 1, 1), 2151 WSS_DOUBLE_TLV("Line Playback Volume", 0, 2152 CS4231_LEFT_LINE_IN, CS4231_RIGHT_LINE_IN, 0, 0, 31, 1, 2153 db_scale_5bit_12db_max), 2154 WSS_SINGLE("Beep Playback Switch", 0, 2155 CS4231_MONO_CTRL, 7, 1, 1), 2156 WSS_SINGLE_TLV("Beep Playback Volume", 0, 2157 CS4231_MONO_CTRL, 0, 15, 1, 2158 db_scale_4bit), 2159 WSS_SINGLE("Mono Output Playback Switch", 0, 2160 CS4231_MONO_CTRL, 6, 1, 1), 2161 WSS_SINGLE("Beep Bypass Playback Switch", 0, 2162 CS4231_MONO_CTRL, 5, 1, 0), 2163 }; 2164 2165 int snd_wss_mixer(struct snd_wss *chip) 2166 { 2167 struct snd_card *card; 2168 unsigned int idx; 2169 int err; 2170 int count = ARRAY_SIZE(snd_wss_controls); 2171 2172 if (snd_BUG_ON(!chip || !chip->pcm)) 2173 return -EINVAL; 2174 2175 card = chip->card; 2176 2177 strcpy(card->mixername, chip->pcm->name); 2178 2179 /* Use only the first 11 entries on AD1848 */ 2180 if (chip->hardware & WSS_HW_AD1848_MASK) 2181 count = 11; 2182 /* There is no loopback on OPTI93X */ 2183 else if (chip->hardware == WSS_HW_OPTI93X) 2184 count = 9; 2185 2186 for (idx = 0; idx < count; idx++) { 2187 err = snd_ctl_add(card, 2188 snd_ctl_new1(&snd_wss_controls[idx], 2189 chip)); 2190 if (err < 0) 2191 return err; 2192 } 2193 return 0; 2194 } 2195 EXPORT_SYMBOL(snd_wss_mixer); 2196 2197 const struct snd_pcm_ops *snd_wss_get_pcm_ops(int direction) 2198 { 2199 return direction == SNDRV_PCM_STREAM_PLAYBACK ? 2200 &snd_wss_playback_ops : &snd_wss_capture_ops; 2201 } 2202 EXPORT_SYMBOL(snd_wss_get_pcm_ops); 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