1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 ad1816a.c - lowlevel code for Analog Devices AD1816A chip. 4 Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it> 5 6 */ 7 8 #include <linux/delay.h> 9 #include <linux/init.h> 10 #include <linux/interrupt.h> 11 #include <linux/slab.h> 12 #include <linux/ioport.h> 13 #include <linux/io.h> 14 #include <sound/core.h> 15 #include <sound/tlv.h> 16 #include <sound/ad1816a.h> 17 18 #include <asm/dma.h> 19 20 static inline int snd_ad1816a_busy_wait(struct snd_ad1816a *chip) 21 { 22 int timeout; 23 24 for (timeout = 1000; timeout-- > 0; udelay(10)) 25 if (inb(AD1816A_REG(AD1816A_CHIP_STATUS)) & AD1816A_READY) 26 return 0; 27 28 snd_printk(KERN_WARNING "chip busy.\n"); 29 return -EBUSY; 30 } 31 32 static inline unsigned char snd_ad1816a_in(struct snd_ad1816a *chip, unsigned char reg) 33 { 34 snd_ad1816a_busy_wait(chip); 35 return inb(AD1816A_REG(reg)); 36 } 37 38 static inline void snd_ad1816a_out(struct snd_ad1816a *chip, unsigned char reg, 39 unsigned char value) 40 { 41 snd_ad1816a_busy_wait(chip); 42 outb(value, AD1816A_REG(reg)); 43 } 44 45 static inline void snd_ad1816a_out_mask(struct snd_ad1816a *chip, unsigned char reg, 46 unsigned char mask, unsigned char value) 47 { 48 snd_ad1816a_out(chip, reg, 49 (value & mask) | (snd_ad1816a_in(chip, reg) & ~mask)); 50 } 51 52 static unsigned short snd_ad1816a_read(struct snd_ad1816a *chip, unsigned char reg) 53 { 54 snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f); 55 return snd_ad1816a_in(chip, AD1816A_INDIR_DATA_LOW) | 56 (snd_ad1816a_in(chip, AD1816A_INDIR_DATA_HIGH) << 8); 57 } 58 59 static void snd_ad1816a_write(struct snd_ad1816a *chip, unsigned char reg, 60 unsigned short value) 61 { 62 snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f); 63 snd_ad1816a_out(chip, AD1816A_INDIR_DATA_LOW, value & 0xff); 64 snd_ad1816a_out(chip, AD1816A_INDIR_DATA_HIGH, (value >> 8) & 0xff); 65 } 66 67 static void snd_ad1816a_write_mask(struct snd_ad1816a *chip, unsigned char reg, 68 unsigned short mask, unsigned short value) 69 { 70 snd_ad1816a_write(chip, reg, 71 (value & mask) | (snd_ad1816a_read(chip, reg) & ~mask)); 72 } 73 74 75 static unsigned char snd_ad1816a_get_format(struct snd_ad1816a *chip, 76 snd_pcm_format_t format, 77 int channels) 78 { 79 unsigned char retval = AD1816A_FMT_LINEAR_8; 80 81 switch (format) { 82 case SNDRV_PCM_FORMAT_MU_LAW: 83 retval = AD1816A_FMT_ULAW_8; 84 break; 85 case SNDRV_PCM_FORMAT_A_LAW: 86 retval = AD1816A_FMT_ALAW_8; 87 break; 88 case SNDRV_PCM_FORMAT_S16_LE: 89 retval = AD1816A_FMT_LINEAR_16_LIT; 90 break; 91 case SNDRV_PCM_FORMAT_S16_BE: 92 retval = AD1816A_FMT_LINEAR_16_BIG; 93 } 94 return (channels > 1) ? (retval | AD1816A_FMT_STEREO) : retval; 95 } 96 97 static int snd_ad1816a_open(struct snd_ad1816a *chip, unsigned int mode) 98 { 99 unsigned long flags; 100 101 spin_lock_irqsave(&chip->lock, flags); 102 103 if (chip->mode & mode) { 104 spin_unlock_irqrestore(&chip->lock, flags); 105 return -EAGAIN; 106 } 107 108 switch ((mode &= AD1816A_MODE_OPEN)) { 109 case AD1816A_MODE_PLAYBACK: 110 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 111 AD1816A_PLAYBACK_IRQ_PENDING, 0x00); 112 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 113 AD1816A_PLAYBACK_IRQ_ENABLE, 0xffff); 114 break; 115 case AD1816A_MODE_CAPTURE: 116 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 117 AD1816A_CAPTURE_IRQ_PENDING, 0x00); 118 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 119 AD1816A_CAPTURE_IRQ_ENABLE, 0xffff); 120 break; 121 case AD1816A_MODE_TIMER: 122 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 123 AD1816A_TIMER_IRQ_PENDING, 0x00); 124 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 125 AD1816A_TIMER_IRQ_ENABLE, 0xffff); 126 } 127 chip->mode |= mode; 128 129 spin_unlock_irqrestore(&chip->lock, flags); 130 return 0; 131 } 132 133 static void snd_ad1816a_close(struct snd_ad1816a *chip, unsigned int mode) 134 { 135 unsigned long flags; 136 137 spin_lock_irqsave(&chip->lock, flags); 138 139 switch ((mode &= AD1816A_MODE_OPEN)) { 140 case AD1816A_MODE_PLAYBACK: 141 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 142 AD1816A_PLAYBACK_IRQ_PENDING, 0x00); 143 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 144 AD1816A_PLAYBACK_IRQ_ENABLE, 0x0000); 145 break; 146 case AD1816A_MODE_CAPTURE: 147 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 148 AD1816A_CAPTURE_IRQ_PENDING, 0x00); 149 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 150 AD1816A_CAPTURE_IRQ_ENABLE, 0x0000); 151 break; 152 case AD1816A_MODE_TIMER: 153 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 154 AD1816A_TIMER_IRQ_PENDING, 0x00); 155 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 156 AD1816A_TIMER_IRQ_ENABLE, 0x0000); 157 } 158 chip->mode &= ~mode; 159 if (!(chip->mode & AD1816A_MODE_OPEN)) 160 chip->mode = 0; 161 162 spin_unlock_irqrestore(&chip->lock, flags); 163 } 164 165 166 static int snd_ad1816a_trigger(struct snd_ad1816a *chip, unsigned char what, 167 int channel, int cmd, int iscapture) 168 { 169 int error = 0; 170 171 switch (cmd) { 172 case SNDRV_PCM_TRIGGER_START: 173 case SNDRV_PCM_TRIGGER_STOP: 174 spin_lock(&chip->lock); 175 cmd = (cmd == SNDRV_PCM_TRIGGER_START) ? 0xff: 0x00; 176 /* if (what & AD1816A_PLAYBACK_ENABLE) */ 177 /* That is not valid, because playback and capture enable 178 * are the same bit pattern, just to different addresses 179 */ 180 if (! iscapture) 181 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 182 AD1816A_PLAYBACK_ENABLE, cmd); 183 else 184 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 185 AD1816A_CAPTURE_ENABLE, cmd); 186 spin_unlock(&chip->lock); 187 break; 188 default: 189 snd_printk(KERN_WARNING "invalid trigger mode 0x%x.\n", what); 190 error = -EINVAL; 191 } 192 193 return error; 194 } 195 196 static int snd_ad1816a_playback_trigger(struct snd_pcm_substream *substream, int cmd) 197 { 198 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 199 return snd_ad1816a_trigger(chip, AD1816A_PLAYBACK_ENABLE, 200 SNDRV_PCM_STREAM_PLAYBACK, cmd, 0); 201 } 202 203 static int snd_ad1816a_capture_trigger(struct snd_pcm_substream *substream, int cmd) 204 { 205 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 206 return snd_ad1816a_trigger(chip, AD1816A_CAPTURE_ENABLE, 207 SNDRV_PCM_STREAM_CAPTURE, cmd, 1); 208 } 209 210 static int snd_ad1816a_playback_prepare(struct snd_pcm_substream *substream) 211 { 212 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 213 unsigned long flags; 214 struct snd_pcm_runtime *runtime = substream->runtime; 215 unsigned int size, rate; 216 217 spin_lock_irqsave(&chip->lock, flags); 218 219 chip->p_dma_size = size = snd_pcm_lib_buffer_bytes(substream); 220 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 221 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00); 222 223 snd_dma_program(chip->dma1, runtime->dma_addr, size, 224 DMA_MODE_WRITE | DMA_AUTOINIT); 225 226 rate = runtime->rate; 227 if (chip->clock_freq) 228 rate = (rate * 33000) / chip->clock_freq; 229 snd_ad1816a_write(chip, AD1816A_PLAYBACK_SAMPLE_RATE, rate); 230 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 231 AD1816A_FMT_ALL | AD1816A_FMT_STEREO, 232 snd_ad1816a_get_format(chip, runtime->format, 233 runtime->channels)); 234 235 snd_ad1816a_write(chip, AD1816A_PLAYBACK_BASE_COUNT, 236 snd_pcm_lib_period_bytes(substream) / 4 - 1); 237 238 spin_unlock_irqrestore(&chip->lock, flags); 239 return 0; 240 } 241 242 static int snd_ad1816a_capture_prepare(struct snd_pcm_substream *substream) 243 { 244 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 245 unsigned long flags; 246 struct snd_pcm_runtime *runtime = substream->runtime; 247 unsigned int size, rate; 248 249 spin_lock_irqsave(&chip->lock, flags); 250 251 chip->c_dma_size = size = snd_pcm_lib_buffer_bytes(substream); 252 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 253 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00); 254 255 snd_dma_program(chip->dma2, runtime->dma_addr, size, 256 DMA_MODE_READ | DMA_AUTOINIT); 257 258 rate = runtime->rate; 259 if (chip->clock_freq) 260 rate = (rate * 33000) / chip->clock_freq; 261 snd_ad1816a_write(chip, AD1816A_CAPTURE_SAMPLE_RATE, rate); 262 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 263 AD1816A_FMT_ALL | AD1816A_FMT_STEREO, 264 snd_ad1816a_get_format(chip, runtime->format, 265 runtime->channels)); 266 267 snd_ad1816a_write(chip, AD1816A_CAPTURE_BASE_COUNT, 268 snd_pcm_lib_period_bytes(substream) / 4 - 1); 269 270 spin_unlock_irqrestore(&chip->lock, flags); 271 return 0; 272 } 273 274 275 static snd_pcm_uframes_t snd_ad1816a_playback_pointer(struct snd_pcm_substream *substream) 276 { 277 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 278 size_t ptr; 279 if (!(chip->mode & AD1816A_MODE_PLAYBACK)) 280 return 0; 281 ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size); 282 return bytes_to_frames(substream->runtime, ptr); 283 } 284 285 static snd_pcm_uframes_t snd_ad1816a_capture_pointer(struct snd_pcm_substream *substream) 286 { 287 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 288 size_t ptr; 289 if (!(chip->mode & AD1816A_MODE_CAPTURE)) 290 return 0; 291 ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size); 292 return bytes_to_frames(substream->runtime, ptr); 293 } 294 295 296 static irqreturn_t snd_ad1816a_interrupt(int irq, void *dev_id) 297 { 298 struct snd_ad1816a *chip = dev_id; 299 unsigned char status; 300 301 spin_lock(&chip->lock); 302 status = snd_ad1816a_in(chip, AD1816A_INTERRUPT_STATUS); 303 spin_unlock(&chip->lock); 304 305 if ((status & AD1816A_PLAYBACK_IRQ_PENDING) && chip->playback_substream) 306 snd_pcm_period_elapsed(chip->playback_substream); 307 308 if ((status & AD1816A_CAPTURE_IRQ_PENDING) && chip->capture_substream) 309 snd_pcm_period_elapsed(chip->capture_substream); 310 311 if ((status & AD1816A_TIMER_IRQ_PENDING) && chip->timer) 312 snd_timer_interrupt(chip->timer, chip->timer->sticks); 313 314 spin_lock(&chip->lock); 315 snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00); 316 spin_unlock(&chip->lock); 317 return IRQ_HANDLED; 318 } 319 320 321 static const struct snd_pcm_hardware snd_ad1816a_playback = { 322 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 323 SNDRV_PCM_INFO_MMAP_VALID), 324 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | 325 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | 326 SNDRV_PCM_FMTBIT_S16_BE), 327 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 328 .rate_min = 4000, 329 .rate_max = 55200, 330 .channels_min = 1, 331 .channels_max = 2, 332 .buffer_bytes_max = (128*1024), 333 .period_bytes_min = 64, 334 .period_bytes_max = (128*1024), 335 .periods_min = 1, 336 .periods_max = 1024, 337 .fifo_size = 0, 338 }; 339 340 static const struct snd_pcm_hardware snd_ad1816a_capture = { 341 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 342 SNDRV_PCM_INFO_MMAP_VALID), 343 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | 344 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | 345 SNDRV_PCM_FMTBIT_S16_BE), 346 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 347 .rate_min = 4000, 348 .rate_max = 55200, 349 .channels_min = 1, 350 .channels_max = 2, 351 .buffer_bytes_max = (128*1024), 352 .period_bytes_min = 64, 353 .period_bytes_max = (128*1024), 354 .periods_min = 1, 355 .periods_max = 1024, 356 .fifo_size = 0, 357 }; 358 359 static int snd_ad1816a_timer_close(struct snd_timer *timer) 360 { 361 struct snd_ad1816a *chip = snd_timer_chip(timer); 362 snd_ad1816a_close(chip, AD1816A_MODE_TIMER); 363 return 0; 364 } 365 366 static int snd_ad1816a_timer_open(struct snd_timer *timer) 367 { 368 struct snd_ad1816a *chip = snd_timer_chip(timer); 369 snd_ad1816a_open(chip, AD1816A_MODE_TIMER); 370 return 0; 371 } 372 373 static unsigned long snd_ad1816a_timer_resolution(struct snd_timer *timer) 374 { 375 if (snd_BUG_ON(!timer)) 376 return 0; 377 378 return 10000; 379 } 380 381 static int snd_ad1816a_timer_start(struct snd_timer *timer) 382 { 383 unsigned short bits; 384 unsigned long flags; 385 struct snd_ad1816a *chip = snd_timer_chip(timer); 386 spin_lock_irqsave(&chip->lock, flags); 387 bits = snd_ad1816a_read(chip, AD1816A_INTERRUPT_ENABLE); 388 389 if (!(bits & AD1816A_TIMER_ENABLE)) { 390 snd_ad1816a_write(chip, AD1816A_TIMER_BASE_COUNT, 391 timer->sticks & 0xffff); 392 393 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 394 AD1816A_TIMER_ENABLE, 0xffff); 395 } 396 spin_unlock_irqrestore(&chip->lock, flags); 397 return 0; 398 } 399 400 static int snd_ad1816a_timer_stop(struct snd_timer *timer) 401 { 402 unsigned long flags; 403 struct snd_ad1816a *chip = snd_timer_chip(timer); 404 spin_lock_irqsave(&chip->lock, flags); 405 406 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 407 AD1816A_TIMER_ENABLE, 0x0000); 408 409 spin_unlock_irqrestore(&chip->lock, flags); 410 return 0; 411 } 412 413 static const struct snd_timer_hardware snd_ad1816a_timer_table = { 414 .flags = SNDRV_TIMER_HW_AUTO, 415 .resolution = 10000, 416 .ticks = 65535, 417 .open = snd_ad1816a_timer_open, 418 .close = snd_ad1816a_timer_close, 419 .c_resolution = snd_ad1816a_timer_resolution, 420 .start = snd_ad1816a_timer_start, 421 .stop = snd_ad1816a_timer_stop, 422 }; 423 424 static int snd_ad1816a_playback_open(struct snd_pcm_substream *substream) 425 { 426 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 427 struct snd_pcm_runtime *runtime = substream->runtime; 428 int error; 429 430 error = snd_ad1816a_open(chip, AD1816A_MODE_PLAYBACK); 431 if (error < 0) 432 return error; 433 runtime->hw = snd_ad1816a_playback; 434 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max); 435 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max); 436 chip->playback_substream = substream; 437 return 0; 438 } 439 440 static int snd_ad1816a_capture_open(struct snd_pcm_substream *substream) 441 { 442 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 443 struct snd_pcm_runtime *runtime = substream->runtime; 444 int error; 445 446 error = snd_ad1816a_open(chip, AD1816A_MODE_CAPTURE); 447 if (error < 0) 448 return error; 449 runtime->hw = snd_ad1816a_capture; 450 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max); 451 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max); 452 chip->capture_substream = substream; 453 return 0; 454 } 455 456 static int snd_ad1816a_playback_close(struct snd_pcm_substream *substream) 457 { 458 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 459 460 chip->playback_substream = NULL; 461 snd_ad1816a_close(chip, AD1816A_MODE_PLAYBACK); 462 return 0; 463 } 464 465 static int snd_ad1816a_capture_close(struct snd_pcm_substream *substream) 466 { 467 struct snd_ad1816a *chip = snd_pcm_substream_chip(substream); 468 469 chip->capture_substream = NULL; 470 snd_ad1816a_close(chip, AD1816A_MODE_CAPTURE); 471 return 0; 472 } 473 474 475 static void snd_ad1816a_init(struct snd_ad1816a *chip) 476 { 477 unsigned long flags; 478 479 spin_lock_irqsave(&chip->lock, flags); 480 481 snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00); 482 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 483 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00); 484 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 485 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00); 486 snd_ad1816a_write(chip, AD1816A_INTERRUPT_ENABLE, 0x0000); 487 snd_ad1816a_write_mask(chip, AD1816A_CHIP_CONFIG, 488 AD1816A_CAPTURE_NOT_EQUAL | AD1816A_WSS_ENABLE, 0xffff); 489 snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000); 490 snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000); 491 492 spin_unlock_irqrestore(&chip->lock, flags); 493 } 494 495 #ifdef CONFIG_PM 496 void snd_ad1816a_suspend(struct snd_ad1816a *chip) 497 { 498 int reg; 499 unsigned long flags; 500 501 spin_lock_irqsave(&chip->lock, flags); 502 for (reg = 0; reg < 48; reg++) 503 chip->image[reg] = snd_ad1816a_read(chip, reg); 504 spin_unlock_irqrestore(&chip->lock, flags); 505 } 506 507 void snd_ad1816a_resume(struct snd_ad1816a *chip) 508 { 509 int reg; 510 unsigned long flags; 511 512 snd_ad1816a_init(chip); 513 spin_lock_irqsave(&chip->lock, flags); 514 for (reg = 0; reg < 48; reg++) 515 snd_ad1816a_write(chip, reg, chip->image[reg]); 516 spin_unlock_irqrestore(&chip->lock, flags); 517 } 518 #endif 519 520 static int snd_ad1816a_probe(struct snd_ad1816a *chip) 521 { 522 unsigned long flags; 523 524 spin_lock_irqsave(&chip->lock, flags); 525 526 switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) { 527 case 0: 528 chip->hardware = AD1816A_HW_AD1815; 529 break; 530 case 1: 531 chip->hardware = AD1816A_HW_AD18MAX10; 532 break; 533 case 3: 534 chip->hardware = AD1816A_HW_AD1816A; 535 break; 536 default: 537 chip->hardware = AD1816A_HW_AUTO; 538 } 539 540 spin_unlock_irqrestore(&chip->lock, flags); 541 return 0; 542 } 543 544 static int snd_ad1816a_free(struct snd_ad1816a *chip) 545 { 546 release_and_free_resource(chip->res_port); 547 if (chip->irq >= 0) 548 free_irq(chip->irq, (void *) chip); 549 if (chip->dma1 >= 0) { 550 snd_dma_disable(chip->dma1); 551 free_dma(chip->dma1); 552 } 553 if (chip->dma2 >= 0) { 554 snd_dma_disable(chip->dma2); 555 free_dma(chip->dma2); 556 } 557 return 0; 558 } 559 560 static int snd_ad1816a_dev_free(struct snd_device *device) 561 { 562 struct snd_ad1816a *chip = device->device_data; 563 return snd_ad1816a_free(chip); 564 } 565 566 static const char *snd_ad1816a_chip_id(struct snd_ad1816a *chip) 567 { 568 switch (chip->hardware) { 569 case AD1816A_HW_AD1816A: return "AD1816A"; 570 case AD1816A_HW_AD1815: return "AD1815"; 571 case AD1816A_HW_AD18MAX10: return "AD18max10"; 572 default: 573 snd_printk(KERN_WARNING "Unknown chip version %d:%d.\n", 574 chip->version, chip->hardware); 575 return "AD1816A - unknown"; 576 } 577 } 578 579 int snd_ad1816a_create(struct snd_card *card, 580 unsigned long port, int irq, int dma1, int dma2, 581 struct snd_ad1816a *chip) 582 { 583 static const struct snd_device_ops ops = { 584 .dev_free = snd_ad1816a_dev_free, 585 }; 586 int error; 587 588 chip->irq = -1; 589 chip->dma1 = -1; 590 chip->dma2 = -1; 591 592 chip->res_port = request_region(port, 16, "AD1816A"); 593 if (!chip->res_port) { 594 snd_printk(KERN_ERR "ad1816a: can't grab port 0x%lx\n", port); 595 snd_ad1816a_free(chip); 596 return -EBUSY; 597 } 598 if (request_irq(irq, snd_ad1816a_interrupt, 0, "AD1816A", (void *) chip)) { 599 snd_printk(KERN_ERR "ad1816a: can't grab IRQ %d\n", irq); 600 snd_ad1816a_free(chip); 601 return -EBUSY; 602 } 603 chip->irq = irq; 604 card->sync_irq = chip->irq; 605 if (request_dma(dma1, "AD1816A - 1")) { 606 snd_printk(KERN_ERR "ad1816a: can't grab DMA1 %d\n", dma1); 607 snd_ad1816a_free(chip); 608 return -EBUSY; 609 } 610 chip->dma1 = dma1; 611 if (request_dma(dma2, "AD1816A - 2")) { 612 snd_printk(KERN_ERR "ad1816a: can't grab DMA2 %d\n", dma2); 613 snd_ad1816a_free(chip); 614 return -EBUSY; 615 } 616 chip->dma2 = dma2; 617 618 chip->card = card; 619 chip->port = port; 620 spin_lock_init(&chip->lock); 621 622 error = snd_ad1816a_probe(chip); 623 if (error) { 624 snd_ad1816a_free(chip); 625 return error; 626 } 627 628 snd_ad1816a_init(chip); 629 630 /* Register device */ 631 error = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); 632 if (error < 0) { 633 snd_ad1816a_free(chip); 634 return error; 635 } 636 637 return 0; 638 } 639 640 static const struct snd_pcm_ops snd_ad1816a_playback_ops = { 641 .open = snd_ad1816a_playback_open, 642 .close = snd_ad1816a_playback_close, 643 .prepare = snd_ad1816a_playback_prepare, 644 .trigger = snd_ad1816a_playback_trigger, 645 .pointer = snd_ad1816a_playback_pointer, 646 }; 647 648 static const struct snd_pcm_ops snd_ad1816a_capture_ops = { 649 .open = snd_ad1816a_capture_open, 650 .close = snd_ad1816a_capture_close, 651 .prepare = snd_ad1816a_capture_prepare, 652 .trigger = snd_ad1816a_capture_trigger, 653 .pointer = snd_ad1816a_capture_pointer, 654 }; 655 656 int snd_ad1816a_pcm(struct snd_ad1816a *chip, int device) 657 { 658 int error; 659 struct snd_pcm *pcm; 660 661 error = snd_pcm_new(chip->card, "AD1816A", device, 1, 1, &pcm); 662 if (error) 663 return error; 664 665 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1816a_playback_ops); 666 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1816a_capture_ops); 667 668 pcm->private_data = chip; 669 pcm->info_flags = (chip->dma1 == chip->dma2 ) ? SNDRV_PCM_INFO_JOINT_DUPLEX : 0; 670 671 strcpy(pcm->name, snd_ad1816a_chip_id(chip)); 672 snd_ad1816a_init(chip); 673 674 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, chip->card->dev, 675 64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024); 676 677 chip->pcm = pcm; 678 return 0; 679 } 680 681 int snd_ad1816a_timer(struct snd_ad1816a *chip, int device) 682 { 683 struct snd_timer *timer; 684 struct snd_timer_id tid; 685 int error; 686 687 tid.dev_class = SNDRV_TIMER_CLASS_CARD; 688 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; 689 tid.card = chip->card->number; 690 tid.device = device; 691 tid.subdevice = 0; 692 error = snd_timer_new(chip->card, "AD1816A", &tid, &timer); 693 if (error < 0) 694 return error; 695 strcpy(timer->name, snd_ad1816a_chip_id(chip)); 696 timer->private_data = chip; 697 chip->timer = timer; 698 timer->hw = snd_ad1816a_timer_table; 699 return 0; 700 } 701 702 /* 703 * 704 */ 705 706 static int snd_ad1816a_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 707 { 708 static const char * const texts[8] = { 709 "Line", "Mix", "CD", "Synth", "Video", 710 "Mic", "Phone", 711 }; 712 713 return snd_ctl_enum_info(uinfo, 2, 7, texts); 714 } 715 716 static int snd_ad1816a_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 717 { 718 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 719 unsigned long flags; 720 unsigned short val; 721 722 spin_lock_irqsave(&chip->lock, flags); 723 val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL); 724 spin_unlock_irqrestore(&chip->lock, flags); 725 ucontrol->value.enumerated.item[0] = (val >> 12) & 7; 726 ucontrol->value.enumerated.item[1] = (val >> 4) & 7; 727 return 0; 728 } 729 730 static int snd_ad1816a_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 731 { 732 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 733 unsigned long flags; 734 unsigned short val; 735 int change; 736 737 if (ucontrol->value.enumerated.item[0] > 6 || 738 ucontrol->value.enumerated.item[1] > 6) 739 return -EINVAL; 740 val = (ucontrol->value.enumerated.item[0] << 12) | 741 (ucontrol->value.enumerated.item[1] << 4); 742 spin_lock_irqsave(&chip->lock, flags); 743 change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val; 744 snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val); 745 spin_unlock_irqrestore(&chip->lock, flags); 746 return change; 747 } 748 749 #define AD1816A_SINGLE_TLV(xname, reg, shift, mask, invert, xtlv) \ 750 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ 751 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \ 752 .name = xname, .info = snd_ad1816a_info_single, \ 753 .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \ 754 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \ 755 .tlv = { .p = (xtlv) } } 756 #define AD1816A_SINGLE(xname, reg, shift, mask, invert) \ 757 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_single, \ 758 .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \ 759 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) } 760 761 static int snd_ad1816a_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 762 { 763 int mask = (kcontrol->private_value >> 16) & 0xff; 764 765 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 766 uinfo->count = 1; 767 uinfo->value.integer.min = 0; 768 uinfo->value.integer.max = mask; 769 return 0; 770 } 771 772 static int snd_ad1816a_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 773 { 774 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 775 unsigned long flags; 776 int reg = kcontrol->private_value & 0xff; 777 int shift = (kcontrol->private_value >> 8) & 0xff; 778 int mask = (kcontrol->private_value >> 16) & 0xff; 779 int invert = (kcontrol->private_value >> 24) & 0xff; 780 781 spin_lock_irqsave(&chip->lock, flags); 782 ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask; 783 spin_unlock_irqrestore(&chip->lock, flags); 784 if (invert) 785 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; 786 return 0; 787 } 788 789 static int snd_ad1816a_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 790 { 791 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 792 unsigned long flags; 793 int reg = kcontrol->private_value & 0xff; 794 int shift = (kcontrol->private_value >> 8) & 0xff; 795 int mask = (kcontrol->private_value >> 16) & 0xff; 796 int invert = (kcontrol->private_value >> 24) & 0xff; 797 int change; 798 unsigned short old_val, val; 799 800 val = (ucontrol->value.integer.value[0] & mask); 801 if (invert) 802 val = mask - val; 803 val <<= shift; 804 spin_lock_irqsave(&chip->lock, flags); 805 old_val = snd_ad1816a_read(chip, reg); 806 val = (old_val & ~(mask << shift)) | val; 807 change = val != old_val; 808 snd_ad1816a_write(chip, reg, val); 809 spin_unlock_irqrestore(&chip->lock, flags); 810 return change; 811 } 812 813 #define AD1816A_DOUBLE_TLV(xname, reg, shift_left, shift_right, mask, invert, xtlv) \ 814 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \ 815 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \ 816 .name = xname, .info = snd_ad1816a_info_double, \ 817 .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \ 818 .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24), \ 819 .tlv = { .p = (xtlv) } } 820 821 #define AD1816A_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \ 822 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_double, \ 823 .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \ 824 .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) } 825 826 static int snd_ad1816a_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 827 { 828 int mask = (kcontrol->private_value >> 16) & 0xff; 829 830 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 831 uinfo->count = 2; 832 uinfo->value.integer.min = 0; 833 uinfo->value.integer.max = mask; 834 return 0; 835 } 836 837 static int snd_ad1816a_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 838 { 839 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 840 unsigned long flags; 841 int reg = kcontrol->private_value & 0xff; 842 int shift_left = (kcontrol->private_value >> 8) & 0x0f; 843 int shift_right = (kcontrol->private_value >> 12) & 0x0f; 844 int mask = (kcontrol->private_value >> 16) & 0xff; 845 int invert = (kcontrol->private_value >> 24) & 0xff; 846 unsigned short val; 847 848 spin_lock_irqsave(&chip->lock, flags); 849 val = snd_ad1816a_read(chip, reg); 850 ucontrol->value.integer.value[0] = (val >> shift_left) & mask; 851 ucontrol->value.integer.value[1] = (val >> shift_right) & mask; 852 spin_unlock_irqrestore(&chip->lock, flags); 853 if (invert) { 854 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; 855 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1]; 856 } 857 return 0; 858 } 859 860 static int snd_ad1816a_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol) 861 { 862 struct snd_ad1816a *chip = snd_kcontrol_chip(kcontrol); 863 unsigned long flags; 864 int reg = kcontrol->private_value & 0xff; 865 int shift_left = (kcontrol->private_value >> 8) & 0x0f; 866 int shift_right = (kcontrol->private_value >> 12) & 0x0f; 867 int mask = (kcontrol->private_value >> 16) & 0xff; 868 int invert = (kcontrol->private_value >> 24) & 0xff; 869 int change; 870 unsigned short old_val, val1, val2; 871 872 val1 = ucontrol->value.integer.value[0] & mask; 873 val2 = ucontrol->value.integer.value[1] & mask; 874 if (invert) { 875 val1 = mask - val1; 876 val2 = mask - val2; 877 } 878 val1 <<= shift_left; 879 val2 <<= shift_right; 880 spin_lock_irqsave(&chip->lock, flags); 881 old_val = snd_ad1816a_read(chip, reg); 882 val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2; 883 change = val1 != old_val; 884 snd_ad1816a_write(chip, reg, val1); 885 spin_unlock_irqrestore(&chip->lock, flags); 886 return change; 887 } 888 889 static const DECLARE_TLV_DB_SCALE(db_scale_4bit, -4500, 300, 0); 890 static const DECLARE_TLV_DB_SCALE(db_scale_5bit, -4650, 150, 0); 891 static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0); 892 static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0); 893 static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0); 894 895 static const struct snd_kcontrol_new snd_ad1816a_controls[] = { 896 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1), 897 AD1816A_DOUBLE_TLV("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1, 898 db_scale_5bit), 899 AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1), 900 AD1816A_DOUBLE_TLV("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1, 901 db_scale_6bit), 902 AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1), 903 AD1816A_DOUBLE_TLV("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1, 904 db_scale_5bit_12db_max), 905 AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1), 906 AD1816A_DOUBLE_TLV("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1, 907 db_scale_5bit_12db_max), 908 AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1), 909 AD1816A_DOUBLE_TLV("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1, 910 db_scale_5bit_12db_max), 911 AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1), 912 AD1816A_DOUBLE_TLV("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1, 913 db_scale_6bit), 914 AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1), 915 AD1816A_SINGLE_TLV("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1, 916 db_scale_5bit_12db_max), 917 AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0), 918 AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1), 919 AD1816A_DOUBLE_TLV("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1, 920 db_scale_5bit_12db_max), 921 AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1), 922 AD1816A_SINGLE_TLV("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1, 923 db_scale_4bit), 924 AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1), 925 AD1816A_SINGLE_TLV("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1, 926 db_scale_5bit), 927 { 928 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 929 .name = "Capture Source", 930 .info = snd_ad1816a_info_mux, 931 .get = snd_ad1816a_get_mux, 932 .put = snd_ad1816a_put_mux, 933 }, 934 AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1), 935 AD1816A_DOUBLE_TLV("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0, 936 db_scale_rec_gain), 937 AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1), 938 AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0), 939 }; 940 941 int snd_ad1816a_mixer(struct snd_ad1816a *chip) 942 { 943 struct snd_card *card; 944 unsigned int idx; 945 int err; 946 947 if (snd_BUG_ON(!chip || !chip->card)) 948 return -EINVAL; 949 950 card = chip->card; 951 952 strcpy(card->mixername, snd_ad1816a_chip_id(chip)); 953 954 for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) { 955 err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip)); 956 if (err < 0) 957 return err; 958 } 959 return 0; 960 } 961