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("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("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 #if 0 /* not used now */ 381 static int snd_ad1816a_timer_close(struct snd_timer *timer) 382 { 383 struct snd_ad1816a *chip = snd_timer_chip(timer); 384 snd_ad1816a_close(chip, AD1816A_MODE_TIMER); 385 return 0; 386 } 387 388 static int snd_ad1816a_timer_open(struct snd_timer *timer) 389 { 390 struct snd_ad1816a *chip = snd_timer_chip(timer); 391 snd_ad1816a_open(chip, AD1816A_MODE_TIMER); 392 return 0; 393 } 394 395 static unsigned long snd_ad1816a_timer_resolution(struct snd_timer *timer) 396 { 397 if (snd_BUG_ON(!timer)) 398 return 0; 399 400 return 10000; 401 } 402 403 static int snd_ad1816a_timer_start(struct snd_timer *timer) 404 { 405 unsigned short bits; 406 unsigned long flags; 407 struct snd_ad1816a *chip = snd_timer_chip(timer); 408 spin_lock_irqsave(&chip->lock, flags); 409 bits = snd_ad1816a_read(chip, AD1816A_INTERRUPT_ENABLE); 410 411 if (!(bits & AD1816A_TIMER_ENABLE)) { 412 snd_ad1816a_write(chip, AD1816A_TIMER_BASE_COUNT, 413 timer->sticks & 0xffff); 414 415 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 416 AD1816A_TIMER_ENABLE, 0xffff); 417 } 418 spin_unlock_irqrestore(&chip->lock, flags); 419 return 0; 420 } 421 422 static int snd_ad1816a_timer_stop(struct snd_timer *timer) 423 { 424 unsigned long flags; 425 struct snd_ad1816a *chip = snd_timer_chip(timer); 426 spin_lock_irqsave(&chip->lock, flags); 427 428 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 429 AD1816A_TIMER_ENABLE, 0x0000); 430 431 spin_unlock_irqrestore(&chip->lock, flags); 432 return 0; 433 } 434 435 static struct snd_timer_hardware snd_ad1816a_timer_table = { 436 .flags = SNDRV_TIMER_HW_AUTO, 437 .resolution = 10000, 438 .ticks = 65535, 439 .open = snd_ad1816a_timer_open, 440 .close = snd_ad1816a_timer_close, 441 .c_resolution = snd_ad1816a_timer_resolution, 442 .start = snd_ad1816a_timer_start, 443 .stop = snd_ad1816a_timer_stop, 444 }; 445 #endif /* not used now */ 446 447 448 static int snd_ad1816a_playback_open(struct snd_pcm_substream *substream) 449 { 450 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 451 struct snd_pcm_runtime *runtime = substream->runtime; 452 int error; 453 454 if ((error = snd_ad1816a_open(chip, AD1816A_MODE_PLAYBACK)) < 0) 455 return error; 456 runtime->hw = snd_ad1816a_playback; 457 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max); 458 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max); 459 chip->playback_substream = substream; 460 return 0; 461 } 462 463 static int snd_ad1816a_capture_open(struct snd_pcm_substream *substream) 464 { 465 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 466 struct snd_pcm_runtime *runtime = substream->runtime; 467 int error; 468 469 if ((error = snd_ad1816a_open(chip, AD1816A_MODE_CAPTURE)) < 0) 470 return error; 471 runtime->hw = snd_ad1816a_capture; 472 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max); 473 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max); 474 chip->capture_substream = substream; 475 return 0; 476 } 477 478 static int snd_ad1816a_playback_close(struct snd_pcm_substream *substream) 479 { 480 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 481 482 chip->playback_substream = NULL; 483 snd_ad1816a_close(chip, AD1816A_MODE_PLAYBACK); 484 return 0; 485 } 486 487 static int snd_ad1816a_capture_close(struct snd_pcm_substream *substream) 488 { 489 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 490 491 chip->capture_substream = NULL; 492 snd_ad1816a_close(chip, AD1816A_MODE_CAPTURE); 493 return 0; 494 } 495 496 497 static void __devinit snd_ad1816a_init(struct snd_ad1816a *chip) 498 { 499 unsigned long flags; 500 501 spin_lock_irqsave(&chip->lock, flags); 502 503 snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00); 504 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 505 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00); 506 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 507 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00); 508 snd_ad1816a_write(chip, AD1816A_INTERRUPT_ENABLE, 0x0000); 509 snd_ad1816a_write_mask(chip, AD1816A_CHIP_CONFIG, 510 AD1816A_CAPTURE_NOT_EQUAL | AD1816A_WSS_ENABLE, 0xffff); 511 snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000); 512 snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000); 513 514 spin_unlock_irqrestore(&chip->lock, flags); 515 } 516 517 static int __devinit snd_ad1816a_probe(struct snd_ad1816a *chip) 518 { 519 unsigned long flags; 520 521 spin_lock_irqsave(&chip->lock, flags); 522 523 switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) { 524 case 0: 525 chip->hardware = AD1816A_HW_AD1815; 526 break; 527 case 1: 528 chip->hardware = AD1816A_HW_AD18MAX10; 529 break; 530 case 3: 531 chip->hardware = AD1816A_HW_AD1816A; 532 break; 533 default: 534 chip->hardware = AD1816A_HW_AUTO; 535 } 536 537 spin_unlock_irqrestore(&chip->lock, flags); 538 return 0; 539 } 540 541 static int snd_ad1816a_free(struct snd_ad1816a *chip) 542 { 543 release_and_free_resource(chip->res_port); 544 if (chip->irq >= 0) 545 free_irq(chip->irq, (void *) chip); 546 if (chip->dma1 >= 0) { 547 snd_dma_disable(chip->dma1); 548 free_dma(chip->dma1); 549 } 550 if (chip->dma2 >= 0) { 551 snd_dma_disable(chip->dma2); 552 free_dma(chip->dma2); 553 } 554 kfree(chip); 555 return 0; 556 } 557 558 static int snd_ad1816a_dev_free(struct snd_device *device) 559 { 560 struct snd_ad1816a *chip = device->device_data; 561 return snd_ad1816a_free(chip); 562 } 563 564 static const char __devinit *snd_ad1816a_chip_id(struct snd_ad1816a *chip) 565 { 566 switch (chip->hardware) { 567 case AD1816A_HW_AD1816A: return "AD1816A"; 568 case AD1816A_HW_AD1815: return "AD1815"; 569 case AD1816A_HW_AD18MAX10: return "AD18max10"; 570 default: 571 snd_printk("Unknown chip version %d:%d.\n", 572 chip->version, chip->hardware); 573 return "AD1816A - unknown"; 574 } 575 } 576 577 int __devinit snd_ad1816a_create(struct snd_card *card, 578 unsigned long port, int irq, int dma1, int dma2, 579 struct snd_ad1816a **rchip) 580 { 581 static struct snd_device_ops ops = { 582 .dev_free = snd_ad1816a_dev_free, 583 }; 584 int error; 585 struct snd_ad1816a *chip; 586 587 *rchip = NULL; 588 589 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 590 if (chip == NULL) 591 return -ENOMEM; 592 chip->irq = -1; 593 chip->dma1 = -1; 594 chip->dma2 = -1; 595 596 if ((chip->res_port = request_region(port, 16, "AD1816A")) == NULL) { 597 snd_printk(KERN_ERR "ad1816a: can't grab port 0x%lx\n", port); 598 snd_ad1816a_free(chip); 599 return -EBUSY; 600 } 601 if (request_irq(irq, snd_ad1816a_interrupt, IRQF_DISABLED, "AD1816A", (void *) chip)) { 602 snd_printk(KERN_ERR "ad1816a: can't grab IRQ %d\n", irq); 603 snd_ad1816a_free(chip); 604 return -EBUSY; 605 } 606 chip->irq = irq; 607 if (request_dma(dma1, "AD1816A - 1")) { 608 snd_printk(KERN_ERR "ad1816a: can't grab DMA1 %d\n", dma1); 609 snd_ad1816a_free(chip); 610 return -EBUSY; 611 } 612 chip->dma1 = dma1; 613 if (request_dma(dma2, "AD1816A - 2")) { 614 snd_printk(KERN_ERR "ad1816a: can't grab DMA2 %d\n", dma2); 615 snd_ad1816a_free(chip); 616 return -EBUSY; 617 } 618 chip->dma2 = dma2; 619 620 chip->card = card; 621 chip->port = port; 622 spin_lock_init(&chip->lock); 623 624 if ((error = snd_ad1816a_probe(chip))) { 625 snd_ad1816a_free(chip); 626 return error; 627 } 628 629 snd_ad1816a_init(chip); 630 631 /* Register device */ 632 if ((error = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { 633 snd_ad1816a_free(chip); 634 return error; 635 } 636 637 *rchip = chip; 638 return 0; 639 } 640 641 static struct snd_pcm_ops snd_ad1816a_playback_ops = { 642 .open = snd_ad1816a_playback_open, 643 .close = snd_ad1816a_playback_close, 644 .ioctl = snd_pcm_lib_ioctl, 645 .hw_params = snd_ad1816a_hw_params, 646 .hw_free = snd_ad1816a_hw_free, 647 .prepare = snd_ad1816a_playback_prepare, 648 .trigger = snd_ad1816a_playback_trigger, 649 .pointer = snd_ad1816a_playback_pointer, 650 }; 651 652 static struct snd_pcm_ops snd_ad1816a_capture_ops = { 653 .open = snd_ad1816a_capture_open, 654 .close = snd_ad1816a_capture_close, 655 .ioctl = snd_pcm_lib_ioctl, 656 .hw_params = snd_ad1816a_hw_params, 657 .hw_free = snd_ad1816a_hw_free, 658 .prepare = snd_ad1816a_capture_prepare, 659 .trigger = snd_ad1816a_capture_trigger, 660 .pointer = snd_ad1816a_capture_pointer, 661 }; 662 663 int __devinit snd_ad1816a_pcm(struct snd_ad1816a *chip, int device, struct snd_pcm **rpcm) 664 { 665 int error; 666 struct snd_pcm *pcm; 667 668 if ((error = snd_pcm_new(chip->card, "AD1816A", device, 1, 1, &pcm))) 669 return error; 670 671 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1816a_playback_ops); 672 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1816a_capture_ops); 673 674 pcm->private_data = chip; 675 pcm->info_flags = (chip->dma1 == chip->dma2 ) ? SNDRV_PCM_INFO_JOINT_DUPLEX : 0; 676 677 strcpy(pcm->name, snd_ad1816a_chip_id(chip)); 678 snd_ad1816a_init(chip); 679 680 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 681 snd_dma_isa_data(), 682 64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024); 683 684 chip->pcm = pcm; 685 if (rpcm) 686 *rpcm = pcm; 687 return 0; 688 } 689 690 #if 0 /* not used now */ 691 int __devinit snd_ad1816a_timer(struct snd_ad1816a *chip, int device, struct snd_timer **rtimer) 692 { 693 struct snd_timer *timer; 694 struct snd_timer_id tid; 695 int error; 696 697 tid.dev_class = SNDRV_TIMER_CLASS_CARD; 698 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; 699 tid.card = chip->card->number; 700 tid.device = device; 701 tid.subdevice = 0; 702 if ((error = snd_timer_new(chip->card, "AD1816A", &tid, &timer)) < 0) 703 return error; 704 strcpy(timer->name, snd_ad1816a_chip_id(chip)); 705 timer->private_data = chip; 706 chip->timer = timer; 707 timer->hw = snd_ad1816a_timer_table; 708 if (rtimer) 709 *rtimer = timer; 710 return 0; 711 } 712 #endif /* not used now */ 713 714 /* 715 * 716 */ 717 718 static int snd_ad1816a_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 719 { 720 static char *texts[8] = { 721 "Line", "Mix", "CD", "Synth", "Video", 722 "Mic", "Phone", 723 }; 724 725 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 726 uinfo->count = 2; 727 uinfo->value.enumerated.items = 7; 728 if (uinfo->value.enumerated.item > 6) 729 uinfo->value.enumerated.item = 6; 730 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]); 731 return 0; 732 } 733 734 static int snd_ad1816a_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 735 { 736 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 737 unsigned long flags; 738 unsigned short val; 739 740 spin_lock_irqsave(&chip->lock, flags); 741 val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL); 742 spin_unlock_irqrestore(&chip->lock, flags); 743 ucontrol->value.enumerated.item[0] = (val >> 12) & 7; 744 ucontrol->value.enumerated.item[1] = (val >> 4) & 7; 745 return 0; 746 } 747 748 static int snd_ad1816a_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 749 { 750 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 751 unsigned long flags; 752 unsigned short val; 753 int change; 754 755 if (ucontrol->value.enumerated.item[0] > 6 || 756 ucontrol->value.enumerated.item[1] > 6) 757 return -EINVAL; 758 val = (ucontrol->value.enumerated.item[0] << 12) | 759 (ucontrol->value.enumerated.item[1] << 4); 760 spin_lock_irqsave(&chip->lock, flags); 761 change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val; 762 snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val); 763 spin_unlock_irqrestore(&chip->lock, flags); 764 return change; 765 } 766 767 #define AD1816A_SINGLE_TLV(xname, reg, shift, mask, invert, xtlv) \ 768 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ 769 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \ 770 .name = xname, .info = snd_ad1816a_info_single, \ 771 .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \ 772 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \ 773 .tlv = { .p = (xtlv) } } 774 #define AD1816A_SINGLE(xname, reg, shift, mask, invert) \ 775 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_single, \ 776 .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \ 777 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) } 778 779 static int snd_ad1816a_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 780 { 781 int mask = (kcontrol->private_value >> 16) & 0xff; 782 783 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 784 uinfo->count = 1; 785 uinfo->value.integer.min = 0; 786 uinfo->value.integer.max = mask; 787 return 0; 788 } 789 790 static int snd_ad1816a_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 791 { 792 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 793 unsigned long flags; 794 int reg = kcontrol->private_value & 0xff; 795 int shift = (kcontrol->private_value >> 8) & 0xff; 796 int mask = (kcontrol->private_value >> 16) & 0xff; 797 int invert = (kcontrol->private_value >> 24) & 0xff; 798 799 spin_lock_irqsave(&chip->lock, flags); 800 ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask; 801 spin_unlock_irqrestore(&chip->lock, flags); 802 if (invert) 803 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; 804 return 0; 805 } 806 807 static int snd_ad1816a_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 808 { 809 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 810 unsigned long flags; 811 int reg = kcontrol->private_value & 0xff; 812 int shift = (kcontrol->private_value >> 8) & 0xff; 813 int mask = (kcontrol->private_value >> 16) & 0xff; 814 int invert = (kcontrol->private_value >> 24) & 0xff; 815 int change; 816 unsigned short old_val, val; 817 818 val = (ucontrol->value.integer.value[0] & mask); 819 if (invert) 820 val = mask - val; 821 val <<= shift; 822 spin_lock_irqsave(&chip->lock, flags); 823 old_val = snd_ad1816a_read(chip, reg); 824 val = (old_val & ~(mask << shift)) | val; 825 change = val != old_val; 826 snd_ad1816a_write(chip, reg, val); 827 spin_unlock_irqrestore(&chip->lock, flags); 828 return change; 829 } 830 831 #define AD1816A_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \ 832 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ 833 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \ 834 .name = xname, .info = snd_ad1816a_info_double, \ 835 .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \ 836 .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \ 837 .tlv = { .p = (xtlv) } } 838 839 #define AD1816A_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \ 840 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_double, \ 841 .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \ 842 .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) } 843 844 static int snd_ad1816a_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 845 { 846 int mask = (kcontrol->private_value >> 16) & 0xff; 847 848 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 849 uinfo->count = 2; 850 uinfo->value.integer.min = 0; 851 uinfo->value.integer.max = mask; 852 return 0; 853 } 854 855 static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 856 { 857 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 858 unsigned long flags; 859 int reg = kcontrol->private_value & 0xff; 860 int shift_left = (kcontrol->private_value >> 8) & 0x0f; 861 int shift_right = (kcontrol->private_value >> 12) & 0x0f; 862 int mask = (kcontrol->private_value >> 16) & 0xff; 863 int invert = (kcontrol->private_value >> 24) & 0xff; 864 unsigned short val; 865 866 spin_lock_irqsave(&chip->lock, flags); 867 val = snd_ad1816a_read(chip, reg); 868 ucontrol->value.integer.value[0] = (val >> shift_left) & mask; 869 ucontrol->value.integer.value[1] = (val >> shift_right) & mask; 870 spin_unlock_irqrestore(&chip->lock, flags); 871 if (invert) { 872 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; 873 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1]; 874 } 875 return 0; 876 } 877 878 static int snd_ad1816a_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 879 { 880 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 881 unsigned long flags; 882 int reg = kcontrol->private_value & 0xff; 883 int shift_left = (kcontrol->private_value >> 8) & 0x0f; 884 int shift_right = (kcontrol->private_value >> 12) & 0x0f; 885 int mask = (kcontrol->private_value >> 16) & 0xff; 886 int invert = (kcontrol->private_value >> 24) & 0xff; 887 int change; 888 unsigned short old_val, val1, val2; 889 890 val1 = ucontrol->value.integer.value[0] & mask; 891 val2 = ucontrol->value.integer.value[1] & mask; 892 if (invert) { 893 val1 = mask - val1; 894 val2 = mask - val2; 895 } 896 val1 <<= shift_left; 897 val2 <<= shift_right; 898 spin_lock_irqsave(&chip->lock, flags); 899 old_val = snd_ad1816a_read(chip, reg); 900 val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2; 901 change = val1 != old_val; 902 snd_ad1816a_write(chip, reg, val1); 903 spin_unlock_irqrestore(&chip->lock, flags); 904 return change; 905 } 906 907 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0); 908 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0); 909 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0); 910 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0); 911 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0); 912 913 static struct snd_kcontrol_new snd_ad1816a_controls[] __devinitdata = { 914 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1), 915 AD1816A_DOUBLE_TLV("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1, 916 db_scale_5bit), 917 AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1), 918 AD1816A_DOUBLE_TLV("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1, 919 db_scale_6bit), 920 AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1), 921 AD1816A_DOUBLE_TLV("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1, 922 db_scale_5bit_12db_max), 923 AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1), 924 AD1816A_DOUBLE_TLV("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1, 925 db_scale_5bit_12db_max), 926 AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1), 927 AD1816A_DOUBLE_TLV("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1, 928 db_scale_5bit_12db_max), 929 AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1), 930 AD1816A_DOUBLE_TLV("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1, 931 db_scale_6bit), 932 AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1), 933 AD1816A_SINGLE_TLV("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1, 934 db_scale_5bit_12db_max), 935 AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0), 936 AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1), 937 AD1816A_DOUBLE_TLV("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1, 938 db_scale_5bit_12db_max), 939 AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1), 940 AD1816A_SINGLE_TLV("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1, 941 db_scale_4bit), 942 AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1), 943 AD1816A_SINGLE_TLV("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1, 944 db_scale_5bit), 945 { 946 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 947 .name = "Capture Source", 948 .info = snd_ad1816a_info_mux, 949 .get = snd_ad1816a_get_mux, 950 .put = snd_ad1816a_put_mux, 951 }, 952 AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1), 953 AD1816A_DOUBLE_TLV("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0, 954 db_scale_rec_gain), 955 AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1), 956 AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0), 957 }; 958 959 int __devinit snd_ad1816a_mixer(struct snd_ad1816a *chip) 960 { 961 struct snd_card *card; 962 unsigned int idx; 963 int err; 964 965 if (snd_BUG_ON(!chip || !chip->card)) 966 return -EINVAL; 967 968 card = chip->card; 969 970 strcpy(card->mixername, snd_ad1816a_chip_id(chip)); 971 972 for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) { 973 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip))) < 0) 974 return err; 975 } 976 return 0; 977 } 978