1 2 /* 3 ad1816a.c - lowlevel code for Analog Devices AD1816A chip. 4 Copyright (C) 1999-2000 by Massimo Piccioni <dafastidio@libero.it> 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20 21 #include <sound/driver.h> 22 #include <linux/delay.h> 23 #include <linux/init.h> 24 #include <linux/interrupt.h> 25 #include <linux/slab.h> 26 #include <linux/ioport.h> 27 #include <sound/core.h> 28 #include <sound/ad1816a.h> 29 30 #include <asm/io.h> 31 #include <asm/dma.h> 32 33 MODULE_AUTHOR("Massimo Piccioni <dafastidio@libero.it>"); 34 MODULE_DESCRIPTION("lowlevel code for Analog Devices AD1816A chip"); 35 MODULE_LICENSE("GPL"); 36 37 static inline int snd_ad1816a_busy_wait(ad1816a_t *chip) 38 { 39 int timeout; 40 41 for (timeout = 1000; timeout-- > 0; udelay(10)) 42 if (inb(AD1816A_REG(AD1816A_CHIP_STATUS)) & AD1816A_READY) 43 return 0; 44 45 snd_printk("chip busy.\n"); 46 return -EBUSY; 47 } 48 49 static inline unsigned char snd_ad1816a_in(ad1816a_t *chip, unsigned char reg) 50 { 51 snd_ad1816a_busy_wait(chip); 52 return inb(AD1816A_REG(reg)); 53 } 54 55 static inline void snd_ad1816a_out(ad1816a_t *chip, unsigned char reg, 56 unsigned char value) 57 { 58 snd_ad1816a_busy_wait(chip); 59 outb(value, AD1816A_REG(reg)); 60 } 61 62 static inline void snd_ad1816a_out_mask(ad1816a_t *chip, unsigned char reg, 63 unsigned char mask, unsigned char value) 64 { 65 snd_ad1816a_out(chip, reg, 66 (value & mask) | (snd_ad1816a_in(chip, reg) & ~mask)); 67 } 68 69 static unsigned short snd_ad1816a_read(ad1816a_t *chip, unsigned char reg) 70 { 71 snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f); 72 return snd_ad1816a_in(chip, AD1816A_INDIR_DATA_LOW) | 73 (snd_ad1816a_in(chip, AD1816A_INDIR_DATA_HIGH) << 8); 74 } 75 76 static void snd_ad1816a_write(ad1816a_t *chip, unsigned char reg, 77 unsigned short value) 78 { 79 snd_ad1816a_out(chip, AD1816A_INDIR_ADDR, reg & 0x3f); 80 snd_ad1816a_out(chip, AD1816A_INDIR_DATA_LOW, value & 0xff); 81 snd_ad1816a_out(chip, AD1816A_INDIR_DATA_HIGH, (value >> 8) & 0xff); 82 } 83 84 static void snd_ad1816a_write_mask(ad1816a_t *chip, unsigned char reg, 85 unsigned short mask, unsigned short value) 86 { 87 snd_ad1816a_write(chip, reg, 88 (value & mask) | (snd_ad1816a_read(chip, reg) & ~mask)); 89 } 90 91 92 static unsigned char snd_ad1816a_get_format(ad1816a_t *chip, 93 unsigned int format, int channels) 94 { 95 unsigned char retval = AD1816A_FMT_LINEAR_8; 96 97 switch (format) { 98 case SNDRV_PCM_FORMAT_MU_LAW: 99 retval = AD1816A_FMT_ULAW_8; 100 break; 101 case SNDRV_PCM_FORMAT_A_LAW: 102 retval = AD1816A_FMT_ALAW_8; 103 break; 104 case SNDRV_PCM_FORMAT_S16_LE: 105 retval = AD1816A_FMT_LINEAR_16_LIT; 106 break; 107 case SNDRV_PCM_FORMAT_S16_BE: 108 retval = AD1816A_FMT_LINEAR_16_BIG; 109 } 110 return (channels > 1) ? (retval | AD1816A_FMT_STEREO) : retval; 111 } 112 113 static int snd_ad1816a_open(ad1816a_t *chip, unsigned int mode) 114 { 115 unsigned long flags; 116 117 spin_lock_irqsave(&chip->lock, flags); 118 119 if (chip->mode & mode) { 120 spin_unlock_irqrestore(&chip->lock, flags); 121 return -EAGAIN; 122 } 123 124 switch ((mode &= AD1816A_MODE_OPEN)) { 125 case AD1816A_MODE_PLAYBACK: 126 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 127 AD1816A_PLAYBACK_IRQ_PENDING, 0x00); 128 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 129 AD1816A_PLAYBACK_IRQ_ENABLE, 0xffff); 130 break; 131 case AD1816A_MODE_CAPTURE: 132 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 133 AD1816A_CAPTURE_IRQ_PENDING, 0x00); 134 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 135 AD1816A_CAPTURE_IRQ_ENABLE, 0xffff); 136 break; 137 case AD1816A_MODE_TIMER: 138 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 139 AD1816A_TIMER_IRQ_PENDING, 0x00); 140 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 141 AD1816A_TIMER_IRQ_ENABLE, 0xffff); 142 } 143 chip->mode |= mode; 144 145 spin_unlock_irqrestore(&chip->lock, flags); 146 return 0; 147 } 148 149 static void snd_ad1816a_close(ad1816a_t *chip, unsigned int mode) 150 { 151 unsigned long flags; 152 153 spin_lock_irqsave(&chip->lock, flags); 154 155 switch ((mode &= AD1816A_MODE_OPEN)) { 156 case AD1816A_MODE_PLAYBACK: 157 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 158 AD1816A_PLAYBACK_IRQ_PENDING, 0x00); 159 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 160 AD1816A_PLAYBACK_IRQ_ENABLE, 0x0000); 161 break; 162 case AD1816A_MODE_CAPTURE: 163 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 164 AD1816A_CAPTURE_IRQ_PENDING, 0x00); 165 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 166 AD1816A_CAPTURE_IRQ_ENABLE, 0x0000); 167 break; 168 case AD1816A_MODE_TIMER: 169 snd_ad1816a_out_mask(chip, AD1816A_INTERRUPT_STATUS, 170 AD1816A_TIMER_IRQ_PENDING, 0x00); 171 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 172 AD1816A_TIMER_IRQ_ENABLE, 0x0000); 173 } 174 if (!((chip->mode &= ~mode) & AD1816A_MODE_OPEN)) 175 chip->mode = 0; 176 177 spin_unlock_irqrestore(&chip->lock, flags); 178 } 179 180 181 static int snd_ad1816a_trigger(ad1816a_t *chip, unsigned char what, 182 int channel, int cmd) 183 { 184 int error = 0; 185 186 switch (cmd) { 187 case SNDRV_PCM_TRIGGER_START: 188 case SNDRV_PCM_TRIGGER_STOP: 189 spin_lock(&chip->lock); 190 cmd = (cmd == SNDRV_PCM_TRIGGER_START) ? 0xff: 0x00; 191 if (what & AD1816A_PLAYBACK_ENABLE) 192 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 193 AD1816A_PLAYBACK_ENABLE, cmd); 194 if (what & AD1816A_CAPTURE_ENABLE) 195 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 196 AD1816A_CAPTURE_ENABLE, cmd); 197 spin_unlock(&chip->lock); 198 break; 199 default: 200 snd_printk("invalid trigger mode 0x%x.\n", what); 201 error = -EINVAL; 202 } 203 204 return error; 205 } 206 207 static int snd_ad1816a_playback_trigger(snd_pcm_substream_t *substream, int cmd) 208 { 209 ad1816a_t *chip = snd_pcm_substream_chip(substream); 210 return snd_ad1816a_trigger(chip, AD1816A_PLAYBACK_ENABLE, 211 SNDRV_PCM_STREAM_PLAYBACK, cmd); 212 } 213 214 static int snd_ad1816a_capture_trigger(snd_pcm_substream_t *substream, int cmd) 215 { 216 ad1816a_t *chip = snd_pcm_substream_chip(substream); 217 return snd_ad1816a_trigger(chip, AD1816A_CAPTURE_ENABLE, 218 SNDRV_PCM_STREAM_CAPTURE, cmd); 219 } 220 221 static int snd_ad1816a_hw_params(snd_pcm_substream_t * substream, 222 snd_pcm_hw_params_t * hw_params) 223 { 224 return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); 225 } 226 227 static int snd_ad1816a_hw_free(snd_pcm_substream_t * substream) 228 { 229 return snd_pcm_lib_free_pages(substream); 230 } 231 232 static int snd_ad1816a_playback_prepare(snd_pcm_substream_t *substream) 233 { 234 ad1816a_t *chip = snd_pcm_substream_chip(substream); 235 unsigned long flags; 236 snd_pcm_runtime_t *runtime = substream->runtime; 237 unsigned int size, rate; 238 239 spin_lock_irqsave(&chip->lock, flags); 240 241 chip->p_dma_size = size = snd_pcm_lib_buffer_bytes(substream); 242 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 243 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00); 244 245 snd_dma_program(chip->dma1, runtime->dma_addr, size, 246 DMA_MODE_WRITE | DMA_AUTOINIT); 247 248 rate = runtime->rate; 249 if (chip->clock_freq) 250 rate = (rate * 33000) / chip->clock_freq; 251 snd_ad1816a_write(chip, AD1816A_PLAYBACK_SAMPLE_RATE, rate); 252 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 253 AD1816A_FMT_ALL | AD1816A_FMT_STEREO, 254 snd_ad1816a_get_format(chip, runtime->format, 255 runtime->channels)); 256 257 snd_ad1816a_write(chip, AD1816A_PLAYBACK_BASE_COUNT, 258 snd_pcm_lib_period_bytes(substream) / 4 - 1); 259 260 spin_unlock_irqrestore(&chip->lock, flags); 261 return 0; 262 } 263 264 static int snd_ad1816a_capture_prepare(snd_pcm_substream_t *substream) 265 { 266 ad1816a_t *chip = snd_pcm_substream_chip(substream); 267 unsigned long flags; 268 snd_pcm_runtime_t *runtime = substream->runtime; 269 unsigned int size, rate; 270 271 spin_lock_irqsave(&chip->lock, flags); 272 273 chip->c_dma_size = size = snd_pcm_lib_buffer_bytes(substream); 274 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 275 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00); 276 277 snd_dma_program(chip->dma2, runtime->dma_addr, size, 278 DMA_MODE_READ | DMA_AUTOINIT); 279 280 rate = runtime->rate; 281 if (chip->clock_freq) 282 rate = (rate * 33000) / chip->clock_freq; 283 snd_ad1816a_write(chip, AD1816A_CAPTURE_SAMPLE_RATE, rate); 284 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 285 AD1816A_FMT_ALL | AD1816A_FMT_STEREO, 286 snd_ad1816a_get_format(chip, runtime->format, 287 runtime->channels)); 288 289 snd_ad1816a_write(chip, AD1816A_CAPTURE_BASE_COUNT, 290 snd_pcm_lib_period_bytes(substream) / 4 - 1); 291 292 spin_unlock_irqrestore(&chip->lock, flags); 293 return 0; 294 } 295 296 297 static snd_pcm_uframes_t snd_ad1816a_playback_pointer(snd_pcm_substream_t *substream) 298 { 299 ad1816a_t *chip = snd_pcm_substream_chip(substream); 300 size_t ptr; 301 if (!(chip->mode & AD1816A_MODE_PLAYBACK)) 302 return 0; 303 ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size); 304 return bytes_to_frames(substream->runtime, ptr); 305 } 306 307 static snd_pcm_uframes_t snd_ad1816a_capture_pointer(snd_pcm_substream_t *substream) 308 { 309 ad1816a_t *chip = snd_pcm_substream_chip(substream); 310 size_t ptr; 311 if (!(chip->mode & AD1816A_MODE_CAPTURE)) 312 return 0; 313 ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size); 314 return bytes_to_frames(substream->runtime, ptr); 315 } 316 317 318 static irqreturn_t snd_ad1816a_interrupt(int irq, void *dev_id, struct pt_regs *regs) 319 { 320 ad1816a_t *chip = dev_id; 321 unsigned char status; 322 323 spin_lock(&chip->lock); 324 status = snd_ad1816a_in(chip, AD1816A_INTERRUPT_STATUS); 325 spin_unlock(&chip->lock); 326 327 if ((status & AD1816A_PLAYBACK_IRQ_PENDING) && chip->playback_substream) 328 snd_pcm_period_elapsed(chip->playback_substream); 329 330 if ((status & AD1816A_CAPTURE_IRQ_PENDING) && chip->capture_substream) 331 snd_pcm_period_elapsed(chip->capture_substream); 332 333 if ((status & AD1816A_TIMER_IRQ_PENDING) && chip->timer) 334 snd_timer_interrupt(chip->timer, chip->timer->sticks); 335 336 spin_lock(&chip->lock); 337 snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00); 338 spin_unlock(&chip->lock); 339 return IRQ_HANDLED; 340 } 341 342 343 static snd_pcm_hardware_t snd_ad1816a_playback = { 344 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 345 SNDRV_PCM_INFO_MMAP_VALID), 346 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | 347 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | 348 SNDRV_PCM_FMTBIT_S16_BE), 349 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 350 .rate_min = 4000, 351 .rate_max = 55200, 352 .channels_min = 1, 353 .channels_max = 2, 354 .buffer_bytes_max = (128*1024), 355 .period_bytes_min = 64, 356 .period_bytes_max = (128*1024), 357 .periods_min = 1, 358 .periods_max = 1024, 359 .fifo_size = 0, 360 }; 361 362 static snd_pcm_hardware_t snd_ad1816a_capture = { 363 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 364 SNDRV_PCM_INFO_MMAP_VALID), 365 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | 366 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | 367 SNDRV_PCM_FMTBIT_S16_BE), 368 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 369 .rate_min = 4000, 370 .rate_max = 55200, 371 .channels_min = 1, 372 .channels_max = 2, 373 .buffer_bytes_max = (128*1024), 374 .period_bytes_min = 64, 375 .period_bytes_max = (128*1024), 376 .periods_min = 1, 377 .periods_max = 1024, 378 .fifo_size = 0, 379 }; 380 381 #if 0 /* not used now */ 382 static int snd_ad1816a_timer_close(snd_timer_t *timer) 383 { 384 ad1816a_t *chip = snd_timer_chip(timer); 385 snd_ad1816a_close(chip, AD1816A_MODE_TIMER); 386 return 0; 387 } 388 389 static int snd_ad1816a_timer_open(snd_timer_t *timer) 390 { 391 ad1816a_t *chip = snd_timer_chip(timer); 392 snd_ad1816a_open(chip, AD1816A_MODE_TIMER); 393 return 0; 394 } 395 396 static unsigned long snd_ad1816a_timer_resolution(snd_timer_t *timer) 397 { 398 snd_assert(timer != NULL, return 0); 399 400 return 10000; 401 } 402 403 static int snd_ad1816a_timer_start(snd_timer_t *timer) 404 { 405 unsigned short bits; 406 unsigned long flags; 407 ad1816a_t *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(snd_timer_t *timer) 423 { 424 unsigned long flags; 425 ad1816a_t *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(snd_pcm_substream_t *substream) 449 { 450 ad1816a_t *chip = snd_pcm_substream_chip(substream); 451 snd_pcm_runtime_t *runtime = substream->runtime; 452 int error; 453 454 if ((error = snd_ad1816a_open(chip, AD1816A_MODE_PLAYBACK)) < 0) 455 return error; 456 snd_pcm_set_sync(substream); 457 runtime->hw = snd_ad1816a_playback; 458 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max); 459 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max); 460 chip->playback_substream = substream; 461 return 0; 462 } 463 464 static int snd_ad1816a_capture_open(snd_pcm_substream_t *substream) 465 { 466 ad1816a_t *chip = snd_pcm_substream_chip(substream); 467 snd_pcm_runtime_t *runtime = substream->runtime; 468 int error; 469 470 if ((error = snd_ad1816a_open(chip, AD1816A_MODE_CAPTURE)) < 0) 471 return error; 472 snd_pcm_set_sync(substream); 473 runtime->hw = snd_ad1816a_capture; 474 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max); 475 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max); 476 chip->capture_substream = substream; 477 return 0; 478 } 479 480 static int snd_ad1816a_playback_close(snd_pcm_substream_t *substream) 481 { 482 ad1816a_t *chip = snd_pcm_substream_chip(substream); 483 484 chip->playback_substream = NULL; 485 snd_ad1816a_close(chip, AD1816A_MODE_PLAYBACK); 486 return 0; 487 } 488 489 static int snd_ad1816a_capture_close(snd_pcm_substream_t *substream) 490 { 491 ad1816a_t *chip = snd_pcm_substream_chip(substream); 492 493 chip->capture_substream = NULL; 494 snd_ad1816a_close(chip, AD1816A_MODE_CAPTURE); 495 return 0; 496 } 497 498 499 static void snd_ad1816a_init(ad1816a_t *chip) 500 { 501 unsigned long flags; 502 503 spin_lock_irqsave(&chip->lock, flags); 504 505 snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00); 506 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 507 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00); 508 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 509 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00); 510 snd_ad1816a_write(chip, AD1816A_INTERRUPT_ENABLE, 0x0000); 511 snd_ad1816a_write_mask(chip, AD1816A_CHIP_CONFIG, 512 AD1816A_CAPTURE_NOT_EQUAL | AD1816A_WSS_ENABLE, 0xffff); 513 snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000); 514 snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000); 515 516 spin_unlock_irqrestore(&chip->lock, flags); 517 } 518 519 static int snd_ad1816a_probe(ad1816a_t *chip) 520 { 521 unsigned long flags; 522 523 spin_lock_irqsave(&chip->lock, flags); 524 525 switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) { 526 case 0: 527 chip->hardware = AD1816A_HW_AD1815; 528 break; 529 case 1: 530 chip->hardware = AD1816A_HW_AD18MAX10; 531 break; 532 case 3: 533 chip->hardware = AD1816A_HW_AD1816A; 534 break; 535 default: 536 chip->hardware = AD1816A_HW_AUTO; 537 } 538 539 spin_unlock_irqrestore(&chip->lock, flags); 540 return 0; 541 } 542 543 static int snd_ad1816a_free(ad1816a_t *chip) 544 { 545 release_and_free_resource(chip->res_port); 546 if (chip->irq >= 0) 547 free_irq(chip->irq, (void *) chip); 548 if (chip->dma1 >= 0) { 549 snd_dma_disable(chip->dma1); 550 free_dma(chip->dma1); 551 } 552 if (chip->dma2 >= 0) { 553 snd_dma_disable(chip->dma2); 554 free_dma(chip->dma2); 555 } 556 kfree(chip); 557 return 0; 558 } 559 560 static int snd_ad1816a_dev_free(snd_device_t *device) 561 { 562 ad1816a_t *chip = device->device_data; 563 return snd_ad1816a_free(chip); 564 } 565 566 static const char *snd_ad1816a_chip_id(ad1816a_t *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("Unknown chip version %d:%d.\n", 574 chip->version, chip->hardware); 575 return "AD1816A - unknown"; 576 } 577 } 578 579 int snd_ad1816a_create(snd_card_t *card, 580 unsigned long port, int irq, int dma1, int dma2, 581 ad1816a_t **rchip) 582 { 583 static snd_device_ops_t ops = { 584 .dev_free = snd_ad1816a_dev_free, 585 }; 586 int error; 587 ad1816a_t *chip; 588 589 *rchip = NULL; 590 591 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 592 if (chip == NULL) 593 return -ENOMEM; 594 chip->irq = -1; 595 chip->dma1 = -1; 596 chip->dma2 = -1; 597 598 if ((chip->res_port = request_region(port, 16, "AD1816A")) == NULL) { 599 snd_printk(KERN_ERR "ad1816a: can't grab port 0x%lx\n", port); 600 snd_ad1816a_free(chip); 601 return -EBUSY; 602 } 603 if (request_irq(irq, snd_ad1816a_interrupt, SA_INTERRUPT, "AD1816A", (void *) chip)) { 604 snd_printk(KERN_ERR "ad1816a: can't grab IRQ %d\n", irq); 605 snd_ad1816a_free(chip); 606 return -EBUSY; 607 } 608 chip->irq = irq; 609 if (request_dma(dma1, "AD1816A - 1")) { 610 snd_printk(KERN_ERR "ad1816a: can't grab DMA1 %d\n", dma1); 611 snd_ad1816a_free(chip); 612 return -EBUSY; 613 } 614 chip->dma1 = dma1; 615 if (request_dma(dma2, "AD1816A - 2")) { 616 snd_printk(KERN_ERR "ad1816a: can't grab DMA2 %d\n", dma2); 617 snd_ad1816a_free(chip); 618 return -EBUSY; 619 } 620 chip->dma2 = dma2; 621 622 chip->card = card; 623 chip->port = port; 624 spin_lock_init(&chip->lock); 625 626 if ((error = snd_ad1816a_probe(chip))) { 627 snd_ad1816a_free(chip); 628 return error; 629 } 630 631 snd_ad1816a_init(chip); 632 633 /* Register device */ 634 if ((error = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { 635 snd_ad1816a_free(chip); 636 return error; 637 } 638 639 *rchip = chip; 640 return 0; 641 } 642 643 static snd_pcm_ops_t snd_ad1816a_playback_ops = { 644 .open = snd_ad1816a_playback_open, 645 .close = snd_ad1816a_playback_close, 646 .ioctl = snd_pcm_lib_ioctl, 647 .hw_params = snd_ad1816a_hw_params, 648 .hw_free = snd_ad1816a_hw_free, 649 .prepare = snd_ad1816a_playback_prepare, 650 .trigger = snd_ad1816a_playback_trigger, 651 .pointer = snd_ad1816a_playback_pointer, 652 }; 653 654 static snd_pcm_ops_t snd_ad1816a_capture_ops = { 655 .open = snd_ad1816a_capture_open, 656 .close = snd_ad1816a_capture_close, 657 .ioctl = snd_pcm_lib_ioctl, 658 .hw_params = snd_ad1816a_hw_params, 659 .hw_free = snd_ad1816a_hw_free, 660 .prepare = snd_ad1816a_capture_prepare, 661 .trigger = snd_ad1816a_capture_trigger, 662 .pointer = snd_ad1816a_capture_pointer, 663 }; 664 665 static void snd_ad1816a_pcm_free(snd_pcm_t *pcm) 666 { 667 ad1816a_t *chip = pcm->private_data; 668 chip->pcm = NULL; 669 snd_pcm_lib_preallocate_free_for_all(pcm); 670 } 671 672 int snd_ad1816a_pcm(ad1816a_t *chip, int device, snd_pcm_t **rpcm) 673 { 674 int error; 675 snd_pcm_t *pcm; 676 677 if ((error = snd_pcm_new(chip->card, "AD1816A", device, 1, 1, &pcm))) 678 return error; 679 680 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1816a_playback_ops); 681 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1816a_capture_ops); 682 683 pcm->private_data = chip; 684 pcm->private_free = snd_ad1816a_pcm_free; 685 pcm->info_flags = (chip->dma1 == chip->dma2 ) ? SNDRV_PCM_INFO_JOINT_DUPLEX : 0; 686 687 strcpy(pcm->name, snd_ad1816a_chip_id(chip)); 688 snd_ad1816a_init(chip); 689 690 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 691 snd_dma_isa_data(), 692 64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024); 693 694 chip->pcm = pcm; 695 if (rpcm) 696 *rpcm = pcm; 697 return 0; 698 } 699 700 #if 0 /* not used now */ 701 static void snd_ad1816a_timer_free(snd_timer_t *timer) 702 { 703 ad1816a_t *chip = timer->private_data; 704 chip->timer = NULL; 705 } 706 707 int snd_ad1816a_timer(ad1816a_t *chip, int device, snd_timer_t **rtimer) 708 { 709 snd_timer_t *timer; 710 snd_timer_id_t tid; 711 int error; 712 713 tid.dev_class = SNDRV_TIMER_CLASS_CARD; 714 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; 715 tid.card = chip->card->number; 716 tid.device = device; 717 tid.subdevice = 0; 718 if ((error = snd_timer_new(chip->card, "AD1816A", &tid, &timer)) < 0) 719 return error; 720 strcpy(timer->name, snd_ad1816a_chip_id(chip)); 721 timer->private_data = chip; 722 timer->private_free = snd_ad1816a_timer_free; 723 chip->timer = timer; 724 timer->hw = snd_ad1816a_timer_table; 725 if (rtimer) 726 *rtimer = timer; 727 return 0; 728 } 729 #endif /* not used now */ 730 731 /* 732 * 733 */ 734 735 static int snd_ad1816a_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo) 736 { 737 static char *texts[8] = { 738 "Line", "Mix", "CD", "Synth", "Video", 739 "Mic", "Phone", 740 }; 741 742 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 743 uinfo->count = 2; 744 uinfo->value.enumerated.items = 7; 745 if (uinfo->value.enumerated.item > 6) 746 uinfo->value.enumerated.item = 6; 747 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]); 748 return 0; 749 } 750 751 static int snd_ad1816a_get_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) 752 { 753 ad1816a_t *chip = snd_kcontrol_chip(kcontrol); 754 unsigned long flags; 755 unsigned short val; 756 757 spin_lock_irqsave(&chip->lock, flags); 758 val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL); 759 spin_unlock_irqrestore(&chip->lock, flags); 760 ucontrol->value.enumerated.item[0] = (val >> 12) & 7; 761 ucontrol->value.enumerated.item[1] = (val >> 4) & 7; 762 return 0; 763 } 764 765 static int snd_ad1816a_put_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) 766 { 767 ad1816a_t *chip = snd_kcontrol_chip(kcontrol); 768 unsigned long flags; 769 unsigned short val; 770 int change; 771 772 if (ucontrol->value.enumerated.item[0] > 6 || 773 ucontrol->value.enumerated.item[1] > 6) 774 return -EINVAL; 775 val = (ucontrol->value.enumerated.item[0] << 12) | 776 (ucontrol->value.enumerated.item[1] << 4); 777 spin_lock_irqsave(&chip->lock, flags); 778 change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val; 779 snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val); 780 spin_unlock_irqrestore(&chip->lock, flags); 781 return change; 782 } 783 784 #define AD1816A_SINGLE(xname, reg, shift, mask, invert) \ 785 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_single, \ 786 .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \ 787 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) } 788 789 static int snd_ad1816a_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo) 790 { 791 int mask = (kcontrol->private_value >> 16) & 0xff; 792 793 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 794 uinfo->count = 1; 795 uinfo->value.integer.min = 0; 796 uinfo->value.integer.max = mask; 797 return 0; 798 } 799 800 static int snd_ad1816a_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) 801 { 802 ad1816a_t *chip = snd_kcontrol_chip(kcontrol); 803 unsigned long flags; 804 int reg = kcontrol->private_value & 0xff; 805 int shift = (kcontrol->private_value >> 8) & 0xff; 806 int mask = (kcontrol->private_value >> 16) & 0xff; 807 int invert = (kcontrol->private_value >> 24) & 0xff; 808 809 spin_lock_irqsave(&chip->lock, flags); 810 ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask; 811 spin_unlock_irqrestore(&chip->lock, flags); 812 if (invert) 813 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; 814 return 0; 815 } 816 817 static int snd_ad1816a_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) 818 { 819 ad1816a_t *chip = snd_kcontrol_chip(kcontrol); 820 unsigned long flags; 821 int reg = kcontrol->private_value & 0xff; 822 int shift = (kcontrol->private_value >> 8) & 0xff; 823 int mask = (kcontrol->private_value >> 16) & 0xff; 824 int invert = (kcontrol->private_value >> 24) & 0xff; 825 int change; 826 unsigned short old_val, val; 827 828 val = (ucontrol->value.integer.value[0] & mask); 829 if (invert) 830 val = mask - val; 831 val <<= shift; 832 spin_lock_irqsave(&chip->lock, flags); 833 old_val = snd_ad1816a_read(chip, reg); 834 val = (old_val & ~(mask << shift)) | val; 835 change = val != old_val; 836 snd_ad1816a_write(chip, reg, val); 837 spin_unlock_irqrestore(&chip->lock, flags); 838 return change; 839 } 840 841 #define AD1816A_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \ 842 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .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) } 845 846 static int snd_ad1816a_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo) 847 { 848 int mask = (kcontrol->private_value >> 16) & 0xff; 849 850 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 851 uinfo->count = 2; 852 uinfo->value.integer.min = 0; 853 uinfo->value.integer.max = mask; 854 return 0; 855 } 856 857 static int snd_ad1816a_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) 858 { 859 ad1816a_t *chip = snd_kcontrol_chip(kcontrol); 860 unsigned long flags; 861 int reg = kcontrol->private_value & 0xff; 862 int shift_left = (kcontrol->private_value >> 8) & 0x0f; 863 int shift_right = (kcontrol->private_value >> 12) & 0x0f; 864 int mask = (kcontrol->private_value >> 16) & 0xff; 865 int invert = (kcontrol->private_value >> 24) & 0xff; 866 unsigned short val; 867 868 spin_lock_irqsave(&chip->lock, flags); 869 val = snd_ad1816a_read(chip, reg); 870 ucontrol->value.integer.value[0] = (val >> shift_left) & mask; 871 ucontrol->value.integer.value[1] = (val >> shift_right) & mask; 872 spin_unlock_irqrestore(&chip->lock, flags); 873 if (invert) { 874 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; 875 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1]; 876 } 877 return 0; 878 } 879 880 static int snd_ad1816a_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) 881 { 882 ad1816a_t *chip = snd_kcontrol_chip(kcontrol); 883 unsigned long flags; 884 int reg = kcontrol->private_value & 0xff; 885 int shift_left = (kcontrol->private_value >> 8) & 0x0f; 886 int shift_right = (kcontrol->private_value >> 12) & 0x0f; 887 int mask = (kcontrol->private_value >> 16) & 0xff; 888 int invert = (kcontrol->private_value >> 24) & 0xff; 889 int change; 890 unsigned short old_val, val1, val2; 891 892 val1 = ucontrol->value.integer.value[0] & mask; 893 val2 = ucontrol->value.integer.value[1] & mask; 894 if (invert) { 895 val1 = mask - val1; 896 val2 = mask - val2; 897 } 898 val1 <<= shift_left; 899 val2 <<= shift_right; 900 spin_lock_irqsave(&chip->lock, flags); 901 old_val = snd_ad1816a_read(chip, reg); 902 val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2; 903 change = val1 != old_val; 904 snd_ad1816a_write(chip, reg, val1); 905 spin_unlock_irqrestore(&chip->lock, flags); 906 return change; 907 } 908 909 static snd_kcontrol_new_t snd_ad1816a_controls[] = { 910 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1), 911 AD1816A_DOUBLE("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1), 912 AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1), 913 AD1816A_DOUBLE("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1), 914 AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1), 915 AD1816A_DOUBLE("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1), 916 AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1), 917 AD1816A_DOUBLE("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1), 918 AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1), 919 AD1816A_DOUBLE("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1), 920 AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1), 921 AD1816A_DOUBLE("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1), 922 AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1), 923 AD1816A_SINGLE("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1), 924 AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0), 925 AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1), 926 AD1816A_DOUBLE("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1), 927 AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1), 928 AD1816A_SINGLE("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1), 929 AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1), 930 AD1816A_SINGLE("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1), 931 { 932 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 933 .name = "Capture Source", 934 .info = snd_ad1816a_info_mux, 935 .get = snd_ad1816a_get_mux, 936 .put = snd_ad1816a_put_mux, 937 }, 938 AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1), 939 AD1816A_DOUBLE("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0), 940 AD1816A_SINGLE("3D Control - Switch", AD1816A_3D_PHAT_CTRL, 15, 1, 1), 941 AD1816A_SINGLE("3D Control - Level", AD1816A_3D_PHAT_CTRL, 0, 15, 0), 942 }; 943 944 int snd_ad1816a_mixer(ad1816a_t *chip) 945 { 946 snd_card_t *card; 947 unsigned int idx; 948 int err; 949 950 snd_assert(chip != NULL && chip->card != NULL, return -EINVAL); 951 952 card = chip->card; 953 954 strcpy(card->mixername, snd_ad1816a_chip_id(chip)); 955 956 for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) { 957 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip))) < 0) 958 return err; 959 } 960 return 0; 961 } 962 963 EXPORT_SYMBOL(snd_ad1816a_create); 964 EXPORT_SYMBOL(snd_ad1816a_pcm); 965 EXPORT_SYMBOL(snd_ad1816a_mixer); 966 967 static int __init alsa_ad1816a_init(void) 968 { 969 return 0; 970 } 971 972 static void __exit alsa_ad1816a_exit(void) 973 { 974 } 975 976 module_init(alsa_ad1816a_init) 977 module_exit(alsa_ad1816a_exit) 978