1 /* 2 ad1816a.c - lowlevel code for Analog Devices AD1816A chip. 3 Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it> 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU General Public License as published by 7 the Free Software Foundation; either version 2 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program; if not, write to the Free Software 17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 18 */ 19 20 #include <linux/delay.h> 21 #include <linux/init.h> 22 #include <linux/interrupt.h> 23 #include <linux/slab.h> 24 #include <linux/ioport.h> 25 #include <sound/core.h> 26 #include <sound/tlv.h> 27 #include <sound/ad1816a.h> 28 29 #include <asm/io.h> 30 #include <asm/dma.h> 31 32 static inline int snd_ad1816a_busy_wait(struct snd_ad1816a *chip) 33 { 34 int timeout; 35 36 for (timeout = 1000; timeout-- > 0; udelay(10)) 37 if (inb(AD1816A_REG(AD1816A_CHIP_STATUS)) & AD1816A_READY) 38 return 0; 39 40 snd_printk(KERN_WARNING "chip busy.\n"); 41 return -EBUSY; 42 } 43 44 static inline unsigned char snd_ad1816a_in(struct snd_ad1816a *chip, unsigned char reg) 45 { 46 snd_ad1816a_busy_wait(chip); 47 return inb(AD1816A_REG(reg)); 48 } 49 50 static inline void snd_ad1816a_out(struct snd_ad1816a *chip, unsigned char reg, 51 unsigned char value) 52 { 53 snd_ad1816a_busy_wait(chip); 54 outb(value, AD1816A_REG(reg)); 55 } 56 57 static inline void snd_ad1816a_out_mask(struct snd_ad1816a *chip, unsigned char reg, 58 unsigned char mask, unsigned char value) 59 { 60 snd_ad1816a_out(chip, reg, 61 (value & mask) | (snd_ad1816a_in(chip, reg) & ~mask)); 62 } 63 64 static unsigned short snd_ad1816a_read(struct snd_ad1816a *chip, unsigned char reg) 65 { 66 snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f); 67 return snd_ad1816a_in(chip, AD1816A_INDIR_DATA_LOW) | 68 (snd_ad1816a_in(chip, AD1816A_INDIR_DATA_HIGH) << 8); 69 } 70 71 static void snd_ad1816a_write(struct snd_ad1816a *chip, unsigned char reg, 72 unsigned short value) 73 { 74 snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f); 75 snd_ad1816a_out(chip, AD1816A_INDIR_DATA_LOW, value & 0xff); 76 snd_ad1816a_out(chip, AD1816A_INDIR_DATA_HIGH, (value >> 8) & 0xff); 77 } 78 79 static void snd_ad1816a_write_mask(struct snd_ad1816a *chip, unsigned char reg, 80 unsigned short mask, unsigned short value) 81 { 82 snd_ad1816a_write(chip, reg, 83 (value & mask) | (snd_ad1816a_read(chip, reg) & ~mask)); 84 } 85 86 87 static unsigned char snd_ad1816a_get_format(struct snd_ad1816a *chip, 88 unsigned int format, int channels) 89 { 90 unsigned char retval = AD1816A_FMT_LINEAR_8; 91 92 switch (format) { 93 case SNDRV_PCM_FORMAT_MU_LAW: 94 retval = AD1816A_FMT_ULAW_8; 95 break; 96 case SNDRV_PCM_FORMAT_A_LAW: 97 retval = AD1816A_FMT_ALAW_8; 98 break; 99 case SNDRV_PCM_FORMAT_S16_LE: 100 retval = AD1816A_FMT_LINEAR_16_LIT; 101 break; 102 case SNDRV_PCM_FORMAT_S16_BE: 103 retval = AD1816A_FMT_LINEAR_16_BIG; 104 } 105 return (channels > 1) ? (retval | AD1816A_FMT_STEREO) : retval; 106 } 107 108 static int snd_ad1816a_open(struct snd_ad1816a *chip, unsigned int mode) 109 { 110 unsigned long flags; 111 112 spin_lock_irqsave(&chip->lock, flags); 113 114 if (chip->mode & mode) { 115 spin_unlock_irqrestore(&chip->lock, flags); 116 return -EAGAIN; 117 } 118 119 switch ((mode &= AD1816A_MODE_OPEN)) { 120 case AD1816A_MODE_PLAYBACK: 121 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 122 AD1816A_PLAYBACK_IRQ_PENDING, 0x00); 123 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 124 AD1816A_PLAYBACK_IRQ_ENABLE, 0xffff); 125 break; 126 case AD1816A_MODE_CAPTURE: 127 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 128 AD1816A_CAPTURE_IRQ_PENDING, 0x00); 129 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 130 AD1816A_CAPTURE_IRQ_ENABLE, 0xffff); 131 break; 132 case AD1816A_MODE_TIMER: 133 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 134 AD1816A_TIMER_IRQ_PENDING, 0x00); 135 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 136 AD1816A_TIMER_IRQ_ENABLE, 0xffff); 137 } 138 chip->mode |= mode; 139 140 spin_unlock_irqrestore(&chip->lock, flags); 141 return 0; 142 } 143 144 static void snd_ad1816a_close(struct snd_ad1816a *chip, unsigned int mode) 145 { 146 unsigned long flags; 147 148 spin_lock_irqsave(&chip->lock, flags); 149 150 switch ((mode &= AD1816A_MODE_OPEN)) { 151 case AD1816A_MODE_PLAYBACK: 152 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 153 AD1816A_PLAYBACK_IRQ_PENDING, 0x00); 154 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 155 AD1816A_PLAYBACK_IRQ_ENABLE, 0x0000); 156 break; 157 case AD1816A_MODE_CAPTURE: 158 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 159 AD1816A_CAPTURE_IRQ_PENDING, 0x00); 160 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 161 AD1816A_CAPTURE_IRQ_ENABLE, 0x0000); 162 break; 163 case AD1816A_MODE_TIMER: 164 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 165 AD1816A_TIMER_IRQ_PENDING, 0x00); 166 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 167 AD1816A_TIMER_IRQ_ENABLE, 0x0000); 168 } 169 if (!((chip->mode &= ~mode) & AD1816A_MODE_OPEN)) 170 chip->mode = 0; 171 172 spin_unlock_irqrestore(&chip->lock, flags); 173 } 174 175 176 static int snd_ad1816a_trigger(struct snd_ad1816a *chip, unsigned char what, 177 int channel, int cmd, int iscapture) 178 { 179 int error = 0; 180 181 switch (cmd) { 182 case SNDRV_PCM_TRIGGER_START: 183 case SNDRV_PCM_TRIGGER_STOP: 184 spin_lock(&chip->lock); 185 cmd = (cmd == SNDRV_PCM_TRIGGER_START) ? 0xff: 0x00; 186 /* if (what & AD1816A_PLAYBACK_ENABLE) */ 187 /* That is not valid, because playback and capture enable 188 * are the same bit pattern, just to different addresses 189 */ 190 if (! iscapture) 191 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 192 AD1816A_PLAYBACK_ENABLE, cmd); 193 else 194 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 195 AD1816A_CAPTURE_ENABLE, cmd); 196 spin_unlock(&chip->lock); 197 break; 198 default: 199 snd_printk(KERN_WARNING "invalid trigger mode 0x%x.\n", what); 200 error = -EINVAL; 201 } 202 203 return error; 204 } 205 206 static int snd_ad1816a_playback_trigger(struct snd_pcm_substream *substream, int cmd) 207 { 208 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 209 return snd_ad1816a_trigger(chip, AD1816A_PLAYBACK_ENABLE, 210 SNDRV_PCM_STREAM_PLAYBACK, cmd, 0); 211 } 212 213 static int snd_ad1816a_capture_trigger(struct snd_pcm_substream *substream, int cmd) 214 { 215 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 216 return snd_ad1816a_trigger(chip, AD1816A_CAPTURE_ENABLE, 217 SNDRV_PCM_STREAM_CAPTURE, cmd, 1); 218 } 219 220 static int snd_ad1816a_hw_params(struct snd_pcm_substream *substream, 221 struct snd_pcm_hw_params *hw_params) 222 { 223 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); 224 } 225 226 static int snd_ad1816a_hw_free(struct snd_pcm_substream *substream) 227 { 228 return snd_pcm_lib_free_pages(substream); 229 } 230 231 static int snd_ad1816a_playback_prepare(struct snd_pcm_substream *substream) 232 { 233 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 234 unsigned long flags; 235 struct snd_pcm_runtime *runtime = substream->runtime; 236 unsigned int size, rate; 237 238 spin_lock_irqsave(&chip->lock, flags); 239 240 chip->p_dma_size = size = snd_pcm_lib_buffer_bytes(substream); 241 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 242 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00); 243 244 snd_dma_program(chip->dma1, runtime->dma_addr, size, 245 DMA_MODE_WRITE | DMA_AUTOINIT); 246 247 rate = runtime->rate; 248 if (chip->clock_freq) 249 rate = (rate * 33000) / chip->clock_freq; 250 snd_ad1816a_write(chip, AD1816A_PLAYBACK_SAMPLE_RATE, rate); 251 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 252 AD1816A_FMT_ALL | AD1816A_FMT_STEREO, 253 snd_ad1816a_get_format(chip, runtime->format, 254 runtime->channels)); 255 256 snd_ad1816a_write(chip, AD1816A_PLAYBACK_BASE_COUNT, 257 snd_pcm_lib_period_bytes(substream) / 4 - 1); 258 259 spin_unlock_irqrestore(&chip->lock, flags); 260 return 0; 261 } 262 263 static int snd_ad1816a_capture_prepare(struct snd_pcm_substream *substream) 264 { 265 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 266 unsigned long flags; 267 struct snd_pcm_runtime *runtime = substream->runtime; 268 unsigned int size, rate; 269 270 spin_lock_irqsave(&chip->lock, flags); 271 272 chip->c_dma_size = size = snd_pcm_lib_buffer_bytes(substream); 273 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 274 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00); 275 276 snd_dma_program(chip->dma2, runtime->dma_addr, size, 277 DMA_MODE_READ | DMA_AUTOINIT); 278 279 rate = runtime->rate; 280 if (chip->clock_freq) 281 rate = (rate * 33000) / chip->clock_freq; 282 snd_ad1816a_write(chip, AD1816A_CAPTURE_SAMPLE_RATE, rate); 283 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 284 AD1816A_FMT_ALL | AD1816A_FMT_STEREO, 285 snd_ad1816a_get_format(chip, runtime->format, 286 runtime->channels)); 287 288 snd_ad1816a_write(chip, AD1816A_CAPTURE_BASE_COUNT, 289 snd_pcm_lib_period_bytes(substream) / 4 - 1); 290 291 spin_unlock_irqrestore(&chip->lock, flags); 292 return 0; 293 } 294 295 296 static snd_pcm_uframes_t snd_ad1816a_playback_pointer(struct snd_pcm_substream *substream) 297 { 298 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 299 size_t ptr; 300 if (!(chip->mode & AD1816A_MODE_PLAYBACK)) 301 return 0; 302 ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size); 303 return bytes_to_frames(substream->runtime, ptr); 304 } 305 306 static snd_pcm_uframes_t snd_ad1816a_capture_pointer(struct snd_pcm_substream *substream) 307 { 308 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 309 size_t ptr; 310 if (!(chip->mode & AD1816A_MODE_CAPTURE)) 311 return 0; 312 ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size); 313 return bytes_to_frames(substream->runtime, ptr); 314 } 315 316 317 static irqreturn_t snd_ad1816a_interrupt(int irq, void *dev_id) 318 { 319 struct snd_ad1816a *chip = dev_id; 320 unsigned char status; 321 322 spin_lock(&chip->lock); 323 status = snd_ad1816a_in(chip, AD1816A_INTERRUPT_STATUS); 324 spin_unlock(&chip->lock); 325 326 if ((status & AD1816A_PLAYBACK_IRQ_PENDING) && chip->playback_substream) 327 snd_pcm_period_elapsed(chip->playback_substream); 328 329 if ((status & AD1816A_CAPTURE_IRQ_PENDING) && chip->capture_substream) 330 snd_pcm_period_elapsed(chip->capture_substream); 331 332 if ((status & AD1816A_TIMER_IRQ_PENDING) && chip->timer) 333 snd_timer_interrupt(chip->timer, chip->timer->sticks); 334 335 spin_lock(&chip->lock); 336 snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00); 337 spin_unlock(&chip->lock); 338 return IRQ_HANDLED; 339 } 340 341 342 static struct snd_pcm_hardware snd_ad1816a_playback = { 343 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 344 SNDRV_PCM_INFO_MMAP_VALID), 345 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | 346 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | 347 SNDRV_PCM_FMTBIT_S16_BE), 348 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 349 .rate_min = 4000, 350 .rate_max = 55200, 351 .channels_min = 1, 352 .channels_max = 2, 353 .buffer_bytes_max = (128*1024), 354 .period_bytes_min = 64, 355 .period_bytes_max = (128*1024), 356 .periods_min = 1, 357 .periods_max = 1024, 358 .fifo_size = 0, 359 }; 360 361 static struct snd_pcm_hardware snd_ad1816a_capture = { 362 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 363 SNDRV_PCM_INFO_MMAP_VALID), 364 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | 365 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | 366 SNDRV_PCM_FMTBIT_S16_BE), 367 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 368 .rate_min = 4000, 369 .rate_max = 55200, 370 .channels_min = 1, 371 .channels_max = 2, 372 .buffer_bytes_max = (128*1024), 373 .period_bytes_min = 64, 374 .period_bytes_max = (128*1024), 375 .periods_min = 1, 376 .periods_max = 1024, 377 .fifo_size = 0, 378 }; 379 380 static int snd_ad1816a_timer_close(struct snd_timer *timer) 381 { 382 struct snd_ad1816a *chip = snd_timer_chip(timer); 383 snd_ad1816a_close(chip, AD1816A_MODE_TIMER); 384 return 0; 385 } 386 387 static int snd_ad1816a_timer_open(struct snd_timer *timer) 388 { 389 struct snd_ad1816a *chip = snd_timer_chip(timer); 390 snd_ad1816a_open(chip, AD1816A_MODE_TIMER); 391 return 0; 392 } 393 394 static unsigned long snd_ad1816a_timer_resolution(struct snd_timer *timer) 395 { 396 if (snd_BUG_ON(!timer)) 397 return 0; 398 399 return 10000; 400 } 401 402 static int snd_ad1816a_timer_start(struct snd_timer *timer) 403 { 404 unsigned short bits; 405 unsigned long flags; 406 struct snd_ad1816a *chip = snd_timer_chip(timer); 407 spin_lock_irqsave(&chip->lock, flags); 408 bits = snd_ad1816a_read(chip, AD1816A_INTERRUPT_ENABLE); 409 410 if (!(bits & AD1816A_TIMER_ENABLE)) { 411 snd_ad1816a_write(chip, AD1816A_TIMER_BASE_COUNT, 412 timer->sticks & 0xffff); 413 414 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 415 AD1816A_TIMER_ENABLE, 0xffff); 416 } 417 spin_unlock_irqrestore(&chip->lock, flags); 418 return 0; 419 } 420 421 static int snd_ad1816a_timer_stop(struct snd_timer *timer) 422 { 423 unsigned long flags; 424 struct snd_ad1816a *chip = snd_timer_chip(timer); 425 spin_lock_irqsave(&chip->lock, flags); 426 427 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 428 AD1816A_TIMER_ENABLE, 0x0000); 429 430 spin_unlock_irqrestore(&chip->lock, flags); 431 return 0; 432 } 433 434 static struct snd_timer_hardware snd_ad1816a_timer_table = { 435 .flags = SNDRV_TIMER_HW_AUTO, 436 .resolution = 10000, 437 .ticks = 65535, 438 .open = snd_ad1816a_timer_open, 439 .close = snd_ad1816a_timer_close, 440 .c_resolution = snd_ad1816a_timer_resolution, 441 .start = snd_ad1816a_timer_start, 442 .stop = snd_ad1816a_timer_stop, 443 }; 444 445 static int snd_ad1816a_playback_open(struct snd_pcm_substream *substream) 446 { 447 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 448 struct snd_pcm_runtime *runtime = substream->runtime; 449 int error; 450 451 if ((error = snd_ad1816a_open(chip, AD1816A_MODE_PLAYBACK)) < 0) 452 return error; 453 runtime->hw = snd_ad1816a_playback; 454 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max); 455 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max); 456 chip->playback_substream = substream; 457 return 0; 458 } 459 460 static int snd_ad1816a_capture_open(struct snd_pcm_substream *substream) 461 { 462 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 463 struct snd_pcm_runtime *runtime = substream->runtime; 464 int error; 465 466 if ((error = snd_ad1816a_open(chip, AD1816A_MODE_CAPTURE)) < 0) 467 return error; 468 runtime->hw = snd_ad1816a_capture; 469 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max); 470 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max); 471 chip->capture_substream = substream; 472 return 0; 473 } 474 475 static int snd_ad1816a_playback_close(struct snd_pcm_substream *substream) 476 { 477 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 478 479 chip->playback_substream = NULL; 480 snd_ad1816a_close(chip, AD1816A_MODE_PLAYBACK); 481 return 0; 482 } 483 484 static int snd_ad1816a_capture_close(struct snd_pcm_substream *substream) 485 { 486 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 487 488 chip->capture_substream = NULL; 489 snd_ad1816a_close(chip, AD1816A_MODE_CAPTURE); 490 return 0; 491 } 492 493 494 static void snd_ad1816a_init(struct snd_ad1816a *chip) 495 { 496 unsigned long flags; 497 498 spin_lock_irqsave(&chip->lock, flags); 499 500 snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00); 501 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 502 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00); 503 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 504 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00); 505 snd_ad1816a_write(chip, AD1816A_INTERRUPT_ENABLE, 0x0000); 506 snd_ad1816a_write_mask(chip, AD1816A_CHIP_CONFIG, 507 AD1816A_CAPTURE_NOT_EQUAL | AD1816A_WSS_ENABLE, 0xffff); 508 snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000); 509 snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000); 510 511 spin_unlock_irqrestore(&chip->lock, flags); 512 } 513 514 #ifdef CONFIG_PM 515 void snd_ad1816a_suspend(struct snd_ad1816a *chip) 516 { 517 int reg; 518 unsigned long flags; 519 520 snd_pcm_suspend_all(chip->pcm); 521 spin_lock_irqsave(&chip->lock, flags); 522 for (reg = 0; reg < 48; reg++) 523 chip->image[reg] = snd_ad1816a_read(chip, reg); 524 spin_unlock_irqrestore(&chip->lock, flags); 525 } 526 527 void snd_ad1816a_resume(struct snd_ad1816a *chip) 528 { 529 int reg; 530 unsigned long flags; 531 532 snd_ad1816a_init(chip); 533 spin_lock_irqsave(&chip->lock, flags); 534 for (reg = 0; reg < 48; reg++) 535 snd_ad1816a_write(chip, reg, chip->image[reg]); 536 spin_unlock_irqrestore(&chip->lock, flags); 537 } 538 #endif 539 540 static int snd_ad1816a_probe(struct snd_ad1816a *chip) 541 { 542 unsigned long flags; 543 544 spin_lock_irqsave(&chip->lock, flags); 545 546 switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) { 547 case 0: 548 chip->hardware = AD1816A_HW_AD1815; 549 break; 550 case 1: 551 chip->hardware = AD1816A_HW_AD18MAX10; 552 break; 553 case 3: 554 chip->hardware = AD1816A_HW_AD1816A; 555 break; 556 default: 557 chip->hardware = AD1816A_HW_AUTO; 558 } 559 560 spin_unlock_irqrestore(&chip->lock, flags); 561 return 0; 562 } 563 564 static int snd_ad1816a_free(struct snd_ad1816a *chip) 565 { 566 release_and_free_resource(chip->res_port); 567 if (chip->irq >= 0) 568 free_irq(chip->irq, (void *) chip); 569 if (chip->dma1 >= 0) { 570 snd_dma_disable(chip->dma1); 571 free_dma(chip->dma1); 572 } 573 if (chip->dma2 >= 0) { 574 snd_dma_disable(chip->dma2); 575 free_dma(chip->dma2); 576 } 577 return 0; 578 } 579 580 static int snd_ad1816a_dev_free(struct snd_device *device) 581 { 582 struct snd_ad1816a *chip = device->device_data; 583 return snd_ad1816a_free(chip); 584 } 585 586 static const char *snd_ad1816a_chip_id(struct snd_ad1816a *chip) 587 { 588 switch (chip->hardware) { 589 case AD1816A_HW_AD1816A: return "AD1816A"; 590 case AD1816A_HW_AD1815: return "AD1815"; 591 case AD1816A_HW_AD18MAX10: return "AD18max10"; 592 default: 593 snd_printk(KERN_WARNING "Unknown chip version %d:%d.\n", 594 chip->version, chip->hardware); 595 return "AD1816A - unknown"; 596 } 597 } 598 599 int snd_ad1816a_create(struct snd_card *card, 600 unsigned long port, int irq, int dma1, int dma2, 601 struct snd_ad1816a *chip) 602 { 603 static struct snd_device_ops ops = { 604 .dev_free = snd_ad1816a_dev_free, 605 }; 606 int error; 607 608 chip->irq = -1; 609 chip->dma1 = -1; 610 chip->dma2 = -1; 611 612 if ((chip->res_port = request_region(port, 16, "AD1816A")) == NULL) { 613 snd_printk(KERN_ERR "ad1816a: can't grab port 0x%lx\n", port); 614 snd_ad1816a_free(chip); 615 return -EBUSY; 616 } 617 if (request_irq(irq, snd_ad1816a_interrupt, 0, "AD1816A", (void *) chip)) { 618 snd_printk(KERN_ERR "ad1816a: can't grab IRQ %d\n", irq); 619 snd_ad1816a_free(chip); 620 return -EBUSY; 621 } 622 chip->irq = irq; 623 if (request_dma(dma1, "AD1816A - 1")) { 624 snd_printk(KERN_ERR "ad1816a: can't grab DMA1 %d\n", dma1); 625 snd_ad1816a_free(chip); 626 return -EBUSY; 627 } 628 chip->dma1 = dma1; 629 if (request_dma(dma2, "AD1816A - 2")) { 630 snd_printk(KERN_ERR "ad1816a: can't grab DMA2 %d\n", dma2); 631 snd_ad1816a_free(chip); 632 return -EBUSY; 633 } 634 chip->dma2 = dma2; 635 636 chip->card = card; 637 chip->port = port; 638 spin_lock_init(&chip->lock); 639 640 if ((error = snd_ad1816a_probe(chip))) { 641 snd_ad1816a_free(chip); 642 return error; 643 } 644 645 snd_ad1816a_init(chip); 646 647 /* Register device */ 648 if ((error = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { 649 snd_ad1816a_free(chip); 650 return error; 651 } 652 653 return 0; 654 } 655 656 static struct snd_pcm_ops snd_ad1816a_playback_ops = { 657 .open = snd_ad1816a_playback_open, 658 .close = snd_ad1816a_playback_close, 659 .ioctl = snd_pcm_lib_ioctl, 660 .hw_params = snd_ad1816a_hw_params, 661 .hw_free = snd_ad1816a_hw_free, 662 .prepare = snd_ad1816a_playback_prepare, 663 .trigger = snd_ad1816a_playback_trigger, 664 .pointer = snd_ad1816a_playback_pointer, 665 }; 666 667 static struct snd_pcm_ops snd_ad1816a_capture_ops = { 668 .open = snd_ad1816a_capture_open, 669 .close = snd_ad1816a_capture_close, 670 .ioctl = snd_pcm_lib_ioctl, 671 .hw_params = snd_ad1816a_hw_params, 672 .hw_free = snd_ad1816a_hw_free, 673 .prepare = snd_ad1816a_capture_prepare, 674 .trigger = snd_ad1816a_capture_trigger, 675 .pointer = snd_ad1816a_capture_pointer, 676 }; 677 678 int snd_ad1816a_pcm(struct snd_ad1816a *chip, int device, struct snd_pcm **rpcm) 679 { 680 int error; 681 struct snd_pcm *pcm; 682 683 if ((error = snd_pcm_new(chip->card, "AD1816A", device, 1, 1, &pcm))) 684 return error; 685 686 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1816a_playback_ops); 687 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1816a_capture_ops); 688 689 pcm->private_data = chip; 690 pcm->info_flags = (chip->dma1 == chip->dma2 ) ? SNDRV_PCM_INFO_JOINT_DUPLEX : 0; 691 692 strcpy(pcm->name, snd_ad1816a_chip_id(chip)); 693 snd_ad1816a_init(chip); 694 695 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 696 snd_dma_isa_data(), 697 64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024); 698 699 chip->pcm = pcm; 700 if (rpcm) 701 *rpcm = pcm; 702 return 0; 703 } 704 705 int snd_ad1816a_timer(struct snd_ad1816a *chip, int device, 706 struct snd_timer **rtimer) 707 { 708 struct snd_timer *timer; 709 struct snd_timer_id tid; 710 int error; 711 712 tid.dev_class = SNDRV_TIMER_CLASS_CARD; 713 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; 714 tid.card = chip->card->number; 715 tid.device = device; 716 tid.subdevice = 0; 717 if ((error = snd_timer_new(chip->card, "AD1816A", &tid, &timer)) < 0) 718 return error; 719 strcpy(timer->name, snd_ad1816a_chip_id(chip)); 720 timer->private_data = chip; 721 chip->timer = timer; 722 timer->hw = snd_ad1816a_timer_table; 723 if (rtimer) 724 *rtimer = timer; 725 return 0; 726 } 727 728 /* 729 * 730 */ 731 732 static int snd_ad1816a_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 733 { 734 static const char * const texts[8] = { 735 "Line", "Mix", "CD", "Synth", "Video", 736 "Mic", "Phone", 737 }; 738 739 return snd_ctl_enum_info(uinfo, 2, 7, texts); 740 } 741 742 static int snd_ad1816a_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 743 { 744 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 745 unsigned long flags; 746 unsigned short val; 747 748 spin_lock_irqsave(&chip->lock, flags); 749 val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL); 750 spin_unlock_irqrestore(&chip->lock, flags); 751 ucontrol->value.enumerated.item[0] = (val >> 12) & 7; 752 ucontrol->value.enumerated.item[1] = (val >> 4) & 7; 753 return 0; 754 } 755 756 static int snd_ad1816a_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 757 { 758 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 759 unsigned long flags; 760 unsigned short val; 761 int change; 762 763 if (ucontrol->value.enumerated.item[0] > 6 || 764 ucontrol->value.enumerated.item[1] > 6) 765 return -EINVAL; 766 val = (ucontrol->value.enumerated.item[0] << 12) | 767 (ucontrol->value.enumerated.item[1] << 4); 768 spin_lock_irqsave(&chip->lock, flags); 769 change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val; 770 snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val); 771 spin_unlock_irqrestore(&chip->lock, flags); 772 return change; 773 } 774 775 #define AD1816A_SINGLE_TLV(xname, reg, shift, mask, invert, xtlv) \ 776 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ 777 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \ 778 .name = xname, .info = snd_ad1816a_info_single, \ 779 .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \ 780 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \ 781 .tlv = { .p = (xtlv) } } 782 #define AD1816A_SINGLE(xname, reg, shift, mask, invert) \ 783 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_single, \ 784 .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \ 785 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) } 786 787 static int snd_ad1816a_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 788 { 789 int mask = (kcontrol->private_value >> 16) & 0xff; 790 791 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 792 uinfo->count = 1; 793 uinfo->value.integer.min = 0; 794 uinfo->value.integer.max = mask; 795 return 0; 796 } 797 798 static int snd_ad1816a_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 799 { 800 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 801 unsigned long flags; 802 int reg = kcontrol->private_value & 0xff; 803 int shift = (kcontrol->private_value >> 8) & 0xff; 804 int mask = (kcontrol->private_value >> 16) & 0xff; 805 int invert = (kcontrol->private_value >> 24) & 0xff; 806 807 spin_lock_irqsave(&chip->lock, flags); 808 ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask; 809 spin_unlock_irqrestore(&chip->lock, flags); 810 if (invert) 811 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; 812 return 0; 813 } 814 815 static int snd_ad1816a_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 816 { 817 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 818 unsigned long flags; 819 int reg = kcontrol->private_value & 0xff; 820 int shift = (kcontrol->private_value >> 8) & 0xff; 821 int mask = (kcontrol->private_value >> 16) & 0xff; 822 int invert = (kcontrol->private_value >> 24) & 0xff; 823 int change; 824 unsigned short old_val, val; 825 826 val = (ucontrol->value.integer.value[0] & mask); 827 if (invert) 828 val = mask - val; 829 val <<= shift; 830 spin_lock_irqsave(&chip->lock, flags); 831 old_val = snd_ad1816a_read(chip, reg); 832 val = (old_val & ~(mask << shift)) | val; 833 change = val != old_val; 834 snd_ad1816a_write(chip, reg, val); 835 spin_unlock_irqrestore(&chip->lock, flags); 836 return change; 837 } 838 839 #define AD1816A_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \ 840 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ 841 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \ 842 .name = xname, .info = snd_ad1816a_info_double, \ 843 .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \ 844 .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \ 845 .tlv = { .p = (xtlv) } } 846 847 #define AD1816A_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \ 848 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_double, \ 849 .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \ 850 .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) } 851 852 static int snd_ad1816a_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 853 { 854 int mask = (kcontrol->private_value >> 16) & 0xff; 855 856 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 857 uinfo->count = 2; 858 uinfo->value.integer.min = 0; 859 uinfo->value.integer.max = mask; 860 return 0; 861 } 862 863 static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 864 { 865 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 866 unsigned long flags; 867 int reg = kcontrol->private_value & 0xff; 868 int shift_left = (kcontrol->private_value >> 8) & 0x0f; 869 int shift_right = (kcontrol->private_value >> 12) & 0x0f; 870 int mask = (kcontrol->private_value >> 16) & 0xff; 871 int invert = (kcontrol->private_value >> 24) & 0xff; 872 unsigned short val; 873 874 spin_lock_irqsave(&chip->lock, flags); 875 val = snd_ad1816a_read(chip, reg); 876 ucontrol->value.integer.value[0] = (val >> shift_left) & mask; 877 ucontrol->value.integer.value[1] = (val >> shift_right) & mask; 878 spin_unlock_irqrestore(&chip->lock, flags); 879 if (invert) { 880 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; 881 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1]; 882 } 883 return 0; 884 } 885 886 static int snd_ad1816a_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 887 { 888 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 889 unsigned long flags; 890 int reg = kcontrol->private_value & 0xff; 891 int shift_left = (kcontrol->private_value >> 8) & 0x0f; 892 int shift_right = (kcontrol->private_value >> 12) & 0x0f; 893 int mask = (kcontrol->private_value >> 16) & 0xff; 894 int invert = (kcontrol->private_value >> 24) & 0xff; 895 int change; 896 unsigned short old_val, val1, val2; 897 898 val1 = ucontrol->value.integer.value[0] & mask; 899 val2 = ucontrol->value.integer.value[1] & mask; 900 if (invert) { 901 val1 = mask - val1; 902 val2 = mask - val2; 903 } 904 val1 <<= shift_left; 905 val2 <<= shift_right; 906 spin_lock_irqsave(&chip->lock, flags); 907 old_val = snd_ad1816a_read(chip, reg); 908 val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2; 909 change = val1 != old_val; 910 snd_ad1816a_write(chip, reg, val1); 911 spin_unlock_irqrestore(&chip->lock, flags); 912 return change; 913 } 914 915 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0); 916 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0); 917 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0); 918 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0); 919 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0); 920 921 static struct snd_kcontrol_new snd_ad1816a_controls[] = { 922 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1), 923 AD1816A_DOUBLE_TLV("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1, 924 db_scale_5bit), 925 AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1), 926 AD1816A_DOUBLE_TLV("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1, 927 db_scale_6bit), 928 AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1), 929 AD1816A_DOUBLE_TLV("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1, 930 db_scale_5bit_12db_max), 931 AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1), 932 AD1816A_DOUBLE_TLV("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1, 933 db_scale_5bit_12db_max), 934 AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1), 935 AD1816A_DOUBLE_TLV("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1, 936 db_scale_5bit_12db_max), 937 AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1), 938 AD1816A_DOUBLE_TLV("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1, 939 db_scale_6bit), 940 AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1), 941 AD1816A_SINGLE_TLV("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1, 942 db_scale_5bit_12db_max), 943 AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0), 944 AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1), 945 AD1816A_DOUBLE_TLV("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1, 946 db_scale_5bit_12db_max), 947 AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1), 948 AD1816A_SINGLE_TLV("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1, 949 db_scale_4bit), 950 AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1), 951 AD1816A_SINGLE_TLV("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1, 952 db_scale_5bit), 953 { 954 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 955 .name = "Capture Source", 956 .info = snd_ad1816a_info_mux, 957 .get = snd_ad1816a_get_mux, 958 .put = snd_ad1816a_put_mux, 959 }, 960 AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1), 961 AD1816A_DOUBLE_TLV("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0, 962 db_scale_rec_gain), 963 AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1), 964 AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0), 965 }; 966 967 int snd_ad1816a_mixer(struct snd_ad1816a *chip) 968 { 969 struct snd_card *card; 970 unsigned int idx; 971 int err; 972 973 if (snd_BUG_ON(!chip || !chip->card)) 974 return -EINVAL; 975 976 card = chip->card; 977 978 strcpy(card->mixername, snd_ad1816a_chip_id(chip)); 979 980 for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) { 981 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip))) < 0) 982 return err; 983 } 984 return 0; 985 } 986