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; 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 snd_ad1816a_write(chip, AD1816A_PLAYBACK_SAMPLE_RATE, runtime->rate); 249 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 250 AD1816A_FMT_ALL | AD1816A_FMT_STEREO, 251 snd_ad1816a_get_format(chip, runtime->format, 252 runtime->channels)); 253 254 snd_ad1816a_write(chip, AD1816A_PLAYBACK_BASE_COUNT, 255 snd_pcm_lib_period_bytes(substream) / 4 - 1); 256 257 spin_unlock_irqrestore(&chip->lock, flags); 258 return 0; 259 } 260 261 static int snd_ad1816a_capture_prepare(snd_pcm_substream_t *substream) 262 { 263 ad1816a_t *chip = snd_pcm_substream_chip(substream); 264 unsigned long flags; 265 snd_pcm_runtime_t *runtime = substream->runtime; 266 unsigned int size; 267 268 spin_lock_irqsave(&chip->lock, flags); 269 270 chip->c_dma_size = size = snd_pcm_lib_buffer_bytes(substream); 271 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 272 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00); 273 274 snd_dma_program(chip->dma2, runtime->dma_addr, size, 275 DMA_MODE_READ | DMA_AUTOINIT); 276 277 snd_ad1816a_write(chip, AD1816A_CAPTURE_SAMPLE_RATE, runtime->rate); 278 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 279 AD1816A_FMT_ALL | AD1816A_FMT_STEREO, 280 snd_ad1816a_get_format(chip, runtime->format, 281 runtime->channels)); 282 283 snd_ad1816a_write(chip, AD1816A_CAPTURE_BASE_COUNT, 284 snd_pcm_lib_period_bytes(substream) / 4 - 1); 285 286 spin_unlock_irqrestore(&chip->lock, flags); 287 return 0; 288 } 289 290 291 static snd_pcm_uframes_t snd_ad1816a_playback_pointer(snd_pcm_substream_t *substream) 292 { 293 ad1816a_t *chip = snd_pcm_substream_chip(substream); 294 size_t ptr; 295 if (!(chip->mode & AD1816A_MODE_PLAYBACK)) 296 return 0; 297 ptr = snd_dma_pointer(chip->dma1, chip->p_dma_size); 298 return bytes_to_frames(substream->runtime, ptr); 299 } 300 301 static snd_pcm_uframes_t snd_ad1816a_capture_pointer(snd_pcm_substream_t *substream) 302 { 303 ad1816a_t *chip = snd_pcm_substream_chip(substream); 304 size_t ptr; 305 if (!(chip->mode & AD1816A_MODE_CAPTURE)) 306 return 0; 307 ptr = snd_dma_pointer(chip->dma2, chip->c_dma_size); 308 return bytes_to_frames(substream->runtime, ptr); 309 } 310 311 312 static irqreturn_t snd_ad1816a_interrupt(int irq, void *dev_id, struct pt_regs *regs) 313 { 314 ad1816a_t *chip = dev_id; 315 unsigned char status; 316 317 spin_lock(&chip->lock); 318 status = snd_ad1816a_in(chip, AD1816A_INTERRUPT_STATUS); 319 spin_unlock(&chip->lock); 320 321 if ((status & AD1816A_PLAYBACK_IRQ_PENDING) && chip->playback_substream) 322 snd_pcm_period_elapsed(chip->playback_substream); 323 324 if ((status & AD1816A_CAPTURE_IRQ_PENDING) && chip->capture_substream) 325 snd_pcm_period_elapsed(chip->capture_substream); 326 327 if ((status & AD1816A_TIMER_IRQ_PENDING) && chip->timer) 328 snd_timer_interrupt(chip->timer, chip->timer->sticks); 329 330 spin_lock(&chip->lock); 331 snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00); 332 spin_unlock(&chip->lock); 333 return IRQ_HANDLED; 334 } 335 336 337 static snd_pcm_hardware_t snd_ad1816a_playback = { 338 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 339 SNDRV_PCM_INFO_MMAP_VALID), 340 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | 341 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | 342 SNDRV_PCM_FMTBIT_S16_BE), 343 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 344 .rate_min = 4000, 345 .rate_max = 55200, 346 .channels_min = 1, 347 .channels_max = 2, 348 .buffer_bytes_max = (128*1024), 349 .period_bytes_min = 64, 350 .period_bytes_max = (128*1024), 351 .periods_min = 1, 352 .periods_max = 1024, 353 .fifo_size = 0, 354 }; 355 356 static snd_pcm_hardware_t snd_ad1816a_capture = { 357 .info = (SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED | 358 SNDRV_PCM_INFO_MMAP_VALID), 359 .formats = (SNDRV_PCM_FMTBIT_MU_LAW | SNDRV_PCM_FMTBIT_A_LAW | 360 SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE | 361 SNDRV_PCM_FMTBIT_S16_BE), 362 .rates = SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000, 363 .rate_min = 4000, 364 .rate_max = 55200, 365 .channels_min = 1, 366 .channels_max = 2, 367 .buffer_bytes_max = (128*1024), 368 .period_bytes_min = 64, 369 .period_bytes_max = (128*1024), 370 .periods_min = 1, 371 .periods_max = 1024, 372 .fifo_size = 0, 373 }; 374 375 #if 0 /* not used now */ 376 static int snd_ad1816a_timer_close(snd_timer_t *timer) 377 { 378 ad1816a_t *chip = snd_timer_chip(timer); 379 snd_ad1816a_close(chip, AD1816A_MODE_TIMER); 380 return 0; 381 } 382 383 static int snd_ad1816a_timer_open(snd_timer_t *timer) 384 { 385 ad1816a_t *chip = snd_timer_chip(timer); 386 snd_ad1816a_open(chip, AD1816A_MODE_TIMER); 387 return 0; 388 } 389 390 static unsigned long snd_ad1816a_timer_resolution(snd_timer_t *timer) 391 { 392 snd_assert(timer != NULL, return 0); 393 394 return 10000; 395 } 396 397 static int snd_ad1816a_timer_start(snd_timer_t *timer) 398 { 399 unsigned short bits; 400 unsigned long flags; 401 ad1816a_t *chip = snd_timer_chip(timer); 402 spin_lock_irqsave(&chip->lock, flags); 403 bits = snd_ad1816a_read(chip, AD1816A_INTERRUPT_ENABLE); 404 405 if (!(bits & AD1816A_TIMER_ENABLE)) { 406 snd_ad1816a_write(chip, AD1816A_TIMER_BASE_COUNT, 407 timer->sticks & 0xffff); 408 409 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 410 AD1816A_TIMER_ENABLE, 0xffff); 411 } 412 spin_unlock_irqrestore(&chip->lock, flags); 413 return 0; 414 } 415 416 static int snd_ad1816a_timer_stop(snd_timer_t *timer) 417 { 418 unsigned long flags; 419 ad1816a_t *chip = snd_timer_chip(timer); 420 spin_lock_irqsave(&chip->lock, flags); 421 422 snd_ad1816a_write_mask(chip, AD1816A_INTERRUPT_ENABLE, 423 AD1816A_TIMER_ENABLE, 0x0000); 424 425 spin_unlock_irqrestore(&chip->lock, flags); 426 return 0; 427 } 428 429 static struct _snd_timer_hardware snd_ad1816a_timer_table = { 430 .flags = SNDRV_TIMER_HW_AUTO, 431 .resolution = 10000, 432 .ticks = 65535, 433 .open = snd_ad1816a_timer_open, 434 .close = snd_ad1816a_timer_close, 435 .c_resolution = snd_ad1816a_timer_resolution, 436 .start = snd_ad1816a_timer_start, 437 .stop = snd_ad1816a_timer_stop, 438 }; 439 #endif /* not used now */ 440 441 442 static int snd_ad1816a_playback_open(snd_pcm_substream_t *substream) 443 { 444 ad1816a_t *chip = snd_pcm_substream_chip(substream); 445 snd_pcm_runtime_t *runtime = substream->runtime; 446 int error; 447 448 if ((error = snd_ad1816a_open(chip, AD1816A_MODE_PLAYBACK)) < 0) 449 return error; 450 snd_pcm_set_sync(substream); 451 runtime->hw = snd_ad1816a_playback; 452 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.buffer_bytes_max); 453 snd_pcm_limit_isa_dma_size(chip->dma1, &runtime->hw.period_bytes_max); 454 chip->playback_substream = substream; 455 return 0; 456 } 457 458 static int snd_ad1816a_capture_open(snd_pcm_substream_t *substream) 459 { 460 ad1816a_t *chip = snd_pcm_substream_chip(substream); 461 snd_pcm_runtime_t *runtime = substream->runtime; 462 int error; 463 464 if ((error = snd_ad1816a_open(chip, AD1816A_MODE_CAPTURE)) < 0) 465 return error; 466 snd_pcm_set_sync(substream); 467 runtime->hw = snd_ad1816a_capture; 468 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.buffer_bytes_max); 469 snd_pcm_limit_isa_dma_size(chip->dma2, &runtime->hw.period_bytes_max); 470 chip->capture_substream = substream; 471 return 0; 472 } 473 474 static int snd_ad1816a_playback_close(snd_pcm_substream_t *substream) 475 { 476 ad1816a_t *chip = snd_pcm_substream_chip(substream); 477 478 chip->playback_substream = NULL; 479 snd_ad1816a_close(chip, AD1816A_MODE_PLAYBACK); 480 return 0; 481 } 482 483 static int snd_ad1816a_capture_close(snd_pcm_substream_t *substream) 484 { 485 ad1816a_t *chip = snd_pcm_substream_chip(substream); 486 487 chip->capture_substream = NULL; 488 snd_ad1816a_close(chip, AD1816A_MODE_CAPTURE); 489 return 0; 490 } 491 492 493 static void snd_ad1816a_init(ad1816a_t *chip) 494 { 495 unsigned long flags; 496 497 spin_lock_irqsave(&chip->lock, flags); 498 499 snd_ad1816a_out(chip, AD1816A_INTERRUPT_STATUS, 0x00); 500 snd_ad1816a_out_mask(chip, AD1816A_PLAYBACK_CONFIG, 501 AD1816A_PLAYBACK_ENABLE | AD1816A_PLAYBACK_PIO, 0x00); 502 snd_ad1816a_out_mask(chip, AD1816A_CAPTURE_CONFIG, 503 AD1816A_CAPTURE_ENABLE | AD1816A_CAPTURE_PIO, 0x00); 504 snd_ad1816a_write(chip, AD1816A_INTERRUPT_ENABLE, 0x0000); 505 snd_ad1816a_write_mask(chip, AD1816A_CHIP_CONFIG, 506 AD1816A_CAPTURE_NOT_EQUAL | AD1816A_WSS_ENABLE, 0xffff); 507 snd_ad1816a_write(chip, AD1816A_DSP_CONFIG, 0x0000); 508 snd_ad1816a_write(chip, AD1816A_POWERDOWN_CTRL, 0x0000); 509 510 spin_unlock_irqrestore(&chip->lock, flags); 511 } 512 513 static int snd_ad1816a_probe(ad1816a_t *chip) 514 { 515 unsigned long flags; 516 517 spin_lock_irqsave(&chip->lock, flags); 518 519 switch (chip->version = snd_ad1816a_read(chip, AD1816A_VERSION_ID)) { 520 case 0: 521 chip->hardware = AD1816A_HW_AD1815; 522 break; 523 case 1: 524 chip->hardware = AD1816A_HW_AD18MAX10; 525 break; 526 case 3: 527 chip->hardware = AD1816A_HW_AD1816A; 528 break; 529 default: 530 chip->hardware = AD1816A_HW_AUTO; 531 } 532 533 spin_unlock_irqrestore(&chip->lock, flags); 534 return 0; 535 } 536 537 static int snd_ad1816a_free(ad1816a_t *chip) 538 { 539 if (chip->res_port) { 540 release_resource(chip->res_port); 541 kfree_nocheck(chip->res_port); 542 } 543 if (chip->irq >= 0) 544 free_irq(chip->irq, (void *) chip); 545 if (chip->dma1 >= 0) { 546 snd_dma_disable(chip->dma1); 547 free_dma(chip->dma1); 548 } 549 if (chip->dma2 >= 0) { 550 snd_dma_disable(chip->dma2); 551 free_dma(chip->dma2); 552 } 553 kfree(chip); 554 return 0; 555 } 556 557 static int snd_ad1816a_dev_free(snd_device_t *device) 558 { 559 ad1816a_t *chip = device->device_data; 560 return snd_ad1816a_free(chip); 561 } 562 563 static const char *snd_ad1816a_chip_id(ad1816a_t *chip) 564 { 565 switch (chip->hardware) { 566 case AD1816A_HW_AD1816A: return "AD1816A"; 567 case AD1816A_HW_AD1815: return "AD1815"; 568 case AD1816A_HW_AD18MAX10: return "AD18max10"; 569 default: 570 snd_printk("Unknown chip version %d:%d.\n", 571 chip->version, chip->hardware); 572 return "AD1816A - unknown"; 573 } 574 } 575 576 int snd_ad1816a_create(snd_card_t *card, 577 unsigned long port, int irq, int dma1, int dma2, 578 ad1816a_t **rchip) 579 { 580 static snd_device_ops_t ops = { 581 .dev_free = snd_ad1816a_dev_free, 582 }; 583 int error; 584 ad1816a_t *chip; 585 586 *rchip = NULL; 587 588 chip = kcalloc(1, sizeof(*chip), GFP_KERNEL); 589 if (chip == NULL) 590 return -ENOMEM; 591 chip->irq = -1; 592 chip->dma1 = -1; 593 chip->dma2 = -1; 594 595 if ((chip->res_port = request_region(port, 16, "AD1816A")) == NULL) { 596 snd_printk(KERN_ERR "ad1816a: can't grab port 0x%lx\n", port); 597 snd_ad1816a_free(chip); 598 return -EBUSY; 599 } 600 if (request_irq(irq, snd_ad1816a_interrupt, SA_INTERRUPT, "AD1816A", (void *) chip)) { 601 snd_printk(KERN_ERR "ad1816a: can't grab IRQ %d\n", irq); 602 snd_ad1816a_free(chip); 603 return -EBUSY; 604 } 605 chip->irq = irq; 606 if (request_dma(dma1, "AD1816A - 1")) { 607 snd_printk(KERN_ERR "ad1816a: can't grab DMA1 %d\n", dma1); 608 snd_ad1816a_free(chip); 609 return -EBUSY; 610 } 611 chip->dma1 = dma1; 612 if (request_dma(dma2, "AD1816A - 2")) { 613 snd_printk(KERN_ERR "ad1816a: can't grab DMA2 %d\n", dma2); 614 snd_ad1816a_free(chip); 615 return -EBUSY; 616 } 617 chip->dma2 = dma2; 618 619 chip->card = card; 620 chip->port = port; 621 spin_lock_init(&chip->lock); 622 623 if ((error = snd_ad1816a_probe(chip))) { 624 snd_ad1816a_free(chip); 625 return error; 626 } 627 628 snd_ad1816a_init(chip); 629 630 /* Register device */ 631 if ((error = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops)) < 0) { 632 snd_ad1816a_free(chip); 633 return error; 634 } 635 636 *rchip = chip; 637 return 0; 638 } 639 640 static snd_pcm_ops_t snd_ad1816a_playback_ops = { 641 .open = snd_ad1816a_playback_open, 642 .close = snd_ad1816a_playback_close, 643 .ioctl = snd_pcm_lib_ioctl, 644 .hw_params = snd_ad1816a_hw_params, 645 .hw_free = snd_ad1816a_hw_free, 646 .prepare = snd_ad1816a_playback_prepare, 647 .trigger = snd_ad1816a_playback_trigger, 648 .pointer = snd_ad1816a_playback_pointer, 649 }; 650 651 static snd_pcm_ops_t snd_ad1816a_capture_ops = { 652 .open = snd_ad1816a_capture_open, 653 .close = snd_ad1816a_capture_close, 654 .ioctl = snd_pcm_lib_ioctl, 655 .hw_params = snd_ad1816a_hw_params, 656 .hw_free = snd_ad1816a_hw_free, 657 .prepare = snd_ad1816a_capture_prepare, 658 .trigger = snd_ad1816a_capture_trigger, 659 .pointer = snd_ad1816a_capture_pointer, 660 }; 661 662 static void snd_ad1816a_pcm_free(snd_pcm_t *pcm) 663 { 664 ad1816a_t *chip = pcm->private_data; 665 chip->pcm = NULL; 666 snd_pcm_lib_preallocate_free_for_all(pcm); 667 } 668 669 int snd_ad1816a_pcm(ad1816a_t *chip, int device, snd_pcm_t **rpcm) 670 { 671 int error; 672 snd_pcm_t *pcm; 673 674 if ((error = snd_pcm_new(chip->card, "AD1816A", device, 1, 1, &pcm))) 675 return error; 676 677 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_ad1816a_playback_ops); 678 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_ad1816a_capture_ops); 679 680 pcm->private_data = chip; 681 pcm->private_free = snd_ad1816a_pcm_free; 682 pcm->info_flags = (chip->dma1 == chip->dma2 ) ? SNDRV_PCM_INFO_JOINT_DUPLEX : 0; 683 684 strcpy(pcm->name, snd_ad1816a_chip_id(chip)); 685 snd_ad1816a_init(chip); 686 687 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 688 snd_dma_isa_data(), 689 64*1024, chip->dma1 > 3 || chip->dma2 > 3 ? 128*1024 : 64*1024); 690 691 chip->pcm = pcm; 692 if (rpcm) 693 *rpcm = pcm; 694 return 0; 695 } 696 697 #if 0 /* not used now */ 698 static void snd_ad1816a_timer_free(snd_timer_t *timer) 699 { 700 ad1816a_t *chip = timer->private_data; 701 chip->timer = NULL; 702 } 703 704 int snd_ad1816a_timer(ad1816a_t *chip, int device, snd_timer_t **rtimer) 705 { 706 snd_timer_t *timer; 707 snd_timer_id_t tid; 708 int error; 709 710 tid.dev_class = SNDRV_TIMER_CLASS_CARD; 711 tid.dev_sclass = SNDRV_TIMER_SCLASS_NONE; 712 tid.card = chip->card->number; 713 tid.device = device; 714 tid.subdevice = 0; 715 if ((error = snd_timer_new(chip->card, "AD1816A", &tid, &timer)) < 0) 716 return error; 717 strcpy(timer->name, snd_ad1816a_chip_id(chip)); 718 timer->private_data = chip; 719 timer->private_free = snd_ad1816a_timer_free; 720 chip->timer = timer; 721 timer->hw = snd_ad1816a_timer_table; 722 if (rtimer) 723 *rtimer = timer; 724 return 0; 725 } 726 #endif /* not used now */ 727 728 /* 729 * 730 */ 731 732 static int snd_ad1816a_info_mux(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo) 733 { 734 static char *texts[8] = { 735 "Line", "Mix", "CD", "Synth", "Video", 736 "Mic", "Phone", 737 }; 738 739 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 740 uinfo->count = 2; 741 uinfo->value.enumerated.items = 7; 742 if (uinfo->value.enumerated.item > 6) 743 uinfo->value.enumerated.item = 6; 744 strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]); 745 return 0; 746 } 747 748 static int snd_ad1816a_get_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) 749 { 750 ad1816a_t *chip = snd_kcontrol_chip(kcontrol); 751 unsigned long flags; 752 unsigned short val; 753 754 spin_lock_irqsave(&chip->lock, flags); 755 val = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL); 756 spin_unlock_irqrestore(&chip->lock, flags); 757 ucontrol->value.enumerated.item[0] = (val >> 12) & 7; 758 ucontrol->value.enumerated.item[1] = (val >> 4) & 7; 759 return 0; 760 } 761 762 static int snd_ad1816a_put_mux(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) 763 { 764 ad1816a_t *chip = snd_kcontrol_chip(kcontrol); 765 unsigned long flags; 766 unsigned short val; 767 int change; 768 769 if (ucontrol->value.enumerated.item[0] > 6 || 770 ucontrol->value.enumerated.item[1] > 6) 771 return -EINVAL; 772 val = (ucontrol->value.enumerated.item[0] << 12) | 773 (ucontrol->value.enumerated.item[1] << 4); 774 spin_lock_irqsave(&chip->lock, flags); 775 change = snd_ad1816a_read(chip, AD1816A_ADC_SOURCE_SEL) != val; 776 snd_ad1816a_write(chip, AD1816A_ADC_SOURCE_SEL, val); 777 spin_unlock_irqrestore(&chip->lock, flags); 778 return change; 779 } 780 781 #define AD1816A_SINGLE(xname, reg, shift, mask, invert) \ 782 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_single, \ 783 .get = snd_ad1816a_get_single, .put = snd_ad1816a_put_single, \ 784 .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24) } 785 786 static int snd_ad1816a_info_single(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo) 787 { 788 int mask = (kcontrol->private_value >> 16) & 0xff; 789 790 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 791 uinfo->count = 1; 792 uinfo->value.integer.min = 0; 793 uinfo->value.integer.max = mask; 794 return 0; 795 } 796 797 static int snd_ad1816a_get_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) 798 { 799 ad1816a_t *chip = snd_kcontrol_chip(kcontrol); 800 unsigned long flags; 801 int reg = kcontrol->private_value & 0xff; 802 int shift = (kcontrol->private_value >> 8) & 0xff; 803 int mask = (kcontrol->private_value >> 16) & 0xff; 804 int invert = (kcontrol->private_value >> 24) & 0xff; 805 806 spin_lock_irqsave(&chip->lock, flags); 807 ucontrol->value.integer.value[0] = (snd_ad1816a_read(chip, reg) >> shift) & mask; 808 spin_unlock_irqrestore(&chip->lock, flags); 809 if (invert) 810 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; 811 return 0; 812 } 813 814 static int snd_ad1816a_put_single(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) 815 { 816 ad1816a_t *chip = snd_kcontrol_chip(kcontrol); 817 unsigned long flags; 818 int reg = kcontrol->private_value & 0xff; 819 int shift = (kcontrol->private_value >> 8) & 0xff; 820 int mask = (kcontrol->private_value >> 16) & 0xff; 821 int invert = (kcontrol->private_value >> 24) & 0xff; 822 int change; 823 unsigned short old_val, val; 824 825 val = (ucontrol->value.integer.value[0] & mask); 826 if (invert) 827 val = mask - val; 828 val <<= shift; 829 spin_lock_irqsave(&chip->lock, flags); 830 old_val = snd_ad1816a_read(chip, reg); 831 val = (old_val & ~(mask << shift)) | val; 832 change = val != old_val; 833 snd_ad1816a_write(chip, reg, val); 834 spin_unlock_irqrestore(&chip->lock, flags); 835 return change; 836 } 837 838 #define AD1816A_DOUBLE(xname, reg, shift_left, shift_right, mask, invert) \ 839 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .info = snd_ad1816a_info_double, \ 840 .get = snd_ad1816a_get_double, .put = snd_ad1816a_put_double, \ 841 .private_value = reg | (shift_left << 8) | (shift_right << 12) | (mask << 16) | (invert << 24) } 842 843 static int snd_ad1816a_info_double(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo) 844 { 845 int mask = (kcontrol->private_value >> 16) & 0xff; 846 847 uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER; 848 uinfo->count = 2; 849 uinfo->value.integer.min = 0; 850 uinfo->value.integer.max = mask; 851 return 0; 852 } 853 854 static int snd_ad1816a_get_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) 855 { 856 ad1816a_t *chip = snd_kcontrol_chip(kcontrol); 857 unsigned long flags; 858 int reg = kcontrol->private_value & 0xff; 859 int shift_left = (kcontrol->private_value >> 8) & 0x0f; 860 int shift_right = (kcontrol->private_value >> 12) & 0x0f; 861 int mask = (kcontrol->private_value >> 16) & 0xff; 862 int invert = (kcontrol->private_value >> 24) & 0xff; 863 unsigned short val; 864 865 spin_lock_irqsave(&chip->lock, flags); 866 val = snd_ad1816a_read(chip, reg); 867 ucontrol->value.integer.value[0] = (val >> shift_left) & mask; 868 ucontrol->value.integer.value[1] = (val >> shift_right) & mask; 869 spin_unlock_irqrestore(&chip->lock, flags); 870 if (invert) { 871 ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0]; 872 ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1]; 873 } 874 return 0; 875 } 876 877 static int snd_ad1816a_put_double(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t * ucontrol) 878 { 879 ad1816a_t *chip = snd_kcontrol_chip(kcontrol); 880 unsigned long flags; 881 int reg = kcontrol->private_value & 0xff; 882 int shift_left = (kcontrol->private_value >> 8) & 0x0f; 883 int shift_right = (kcontrol->private_value >> 12) & 0x0f; 884 int mask = (kcontrol->private_value >> 16) & 0xff; 885 int invert = (kcontrol->private_value >> 24) & 0xff; 886 int change; 887 unsigned short old_val, val1, val2; 888 889 val1 = ucontrol->value.integer.value[0] & mask; 890 val2 = ucontrol->value.integer.value[1] & mask; 891 if (invert) { 892 val1 = mask - val1; 893 val2 = mask - val2; 894 } 895 val1 <<= shift_left; 896 val2 <<= shift_right; 897 spin_lock_irqsave(&chip->lock, flags); 898 old_val = snd_ad1816a_read(chip, reg); 899 val1 = (old_val & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2; 900 change = val1 != old_val; 901 snd_ad1816a_write(chip, reg, val1); 902 spin_unlock_irqrestore(&chip->lock, flags); 903 return change; 904 } 905 906 static snd_kcontrol_new_t snd_ad1816a_controls[] = { 907 AD1816A_DOUBLE("Master Playback Switch", AD1816A_MASTER_ATT, 15, 7, 1, 1), 908 AD1816A_DOUBLE("Master Playback Volume", AD1816A_MASTER_ATT, 8, 0, 31, 1), 909 AD1816A_DOUBLE("PCM Playback Switch", AD1816A_VOICE_ATT, 15, 7, 1, 1), 910 AD1816A_DOUBLE("PCM Playback Volume", AD1816A_VOICE_ATT, 8, 0, 63, 1), 911 AD1816A_DOUBLE("Line Playback Switch", AD1816A_LINE_GAIN_ATT, 15, 7, 1, 1), 912 AD1816A_DOUBLE("Line Playback Volume", AD1816A_LINE_GAIN_ATT, 8, 0, 31, 1), 913 AD1816A_DOUBLE("CD Playback Switch", AD1816A_CD_GAIN_ATT, 15, 7, 1, 1), 914 AD1816A_DOUBLE("CD Playback Volume", AD1816A_CD_GAIN_ATT, 8, 0, 31, 1), 915 AD1816A_DOUBLE("Synth Playback Switch", AD1816A_SYNTH_GAIN_ATT, 15, 7, 1, 1), 916 AD1816A_DOUBLE("Synth Playback Volume", AD1816A_SYNTH_GAIN_ATT, 8, 0, 31, 1), 917 AD1816A_DOUBLE("FM Playback Switch", AD1816A_FM_ATT, 15, 7, 1, 1), 918 AD1816A_DOUBLE("FM Playback Volume", AD1816A_FM_ATT, 8, 0, 63, 1), 919 AD1816A_SINGLE("Mic Playback Switch", AD1816A_MIC_GAIN_ATT, 15, 1, 1), 920 AD1816A_SINGLE("Mic Playback Volume", AD1816A_MIC_GAIN_ATT, 8, 31, 1), 921 AD1816A_SINGLE("Mic Boost", AD1816A_MIC_GAIN_ATT, 14, 1, 0), 922 AD1816A_DOUBLE("Video Playback Switch", AD1816A_VID_GAIN_ATT, 15, 7, 1, 1), 923 AD1816A_DOUBLE("Video Playback Volume", AD1816A_VID_GAIN_ATT, 8, 0, 31, 1), 924 AD1816A_SINGLE("Phone Capture Switch", AD1816A_PHONE_IN_GAIN_ATT, 15, 1, 1), 925 AD1816A_SINGLE("Phone Capture Volume", AD1816A_PHONE_IN_GAIN_ATT, 0, 15, 1), 926 AD1816A_SINGLE("Phone Playback Switch", AD1816A_PHONE_OUT_ATT, 7, 1, 1), 927 AD1816A_SINGLE("Phone Playback Volume", AD1816A_PHONE_OUT_ATT, 0, 31, 1), 928 { 929 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 930 .name = "Capture Source", 931 .info = snd_ad1816a_info_mux, 932 .get = snd_ad1816a_get_mux, 933 .put = snd_ad1816a_put_mux, 934 }, 935 AD1816A_DOUBLE("Capture Switch", AD1816A_ADC_PGA, 15, 7, 1, 1), 936 AD1816A_DOUBLE("Capture Volume", AD1816A_ADC_PGA, 8, 0, 15, 0), 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(ad1816a_t *chip) 942 { 943 snd_card_t *card; 944 unsigned int idx; 945 int err; 946 947 snd_assert(chip != NULL && chip->card != NULL, return -EINVAL); 948 949 card = chip->card; 950 951 strcpy(card->mixername, snd_ad1816a_chip_id(chip)); 952 953 for (idx = 0; idx < ARRAY_SIZE(snd_ad1816a_controls); idx++) { 954 if ((err = snd_ctl_add(card, snd_ctl_new1(&snd_ad1816a_controls[idx], chip))) < 0) 955 return err; 956 } 957 return 0; 958 } 959 960 EXPORT_SYMBOL(snd_ad1816a_create); 961 EXPORT_SYMBOL(snd_ad1816a_pcm); 962 EXPORT_SYMBOL(snd_ad1816a_mixer); 963 964 static int __init alsa_ad1816a_init(void) 965 { 966 return 0; 967 } 968 969 static void __exit alsa_ad1816a_exit(void) 970 { 971 } 972 973 module_init(alsa_ad1816a_init) 974 module_exit(alsa_ad1816a_exit) 975