Tim Blechmann | 02bec49 | 2009-03-24 12:24:35 +0100 | [diff] [blame^] | 1 | /* -*- linux-c -*- * |
| 2 | * |
| 3 | * ALSA driver for the digigram lx6464es interface |
| 4 | * |
| 5 | * Copyright (c) 2008, 2009 Tim Blechmann <tim@klingt.org> |
| 6 | * |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License as published by |
| 10 | * the Free Software Foundation; either version 2 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; see the file COPYING. If not, write to |
| 20 | * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, |
| 21 | * Boston, MA 02111-1307, USA. |
| 22 | * |
| 23 | */ |
| 24 | |
| 25 | #include <linux/module.h> |
| 26 | #include <linux/init.h> |
| 27 | #include <linux/pci.h> |
| 28 | #include <linux/delay.h> |
| 29 | |
| 30 | #include <sound/initval.h> |
| 31 | #include <sound/control.h> |
| 32 | #include <sound/info.h> |
| 33 | |
| 34 | #include "lx6464es.h" |
| 35 | |
| 36 | MODULE_AUTHOR("Tim Blechmann"); |
| 37 | MODULE_LICENSE("GPL"); |
| 38 | MODULE_DESCRIPTION("digigram lx6464es"); |
| 39 | MODULE_SUPPORTED_DEVICE("{digigram lx6464es{}}"); |
| 40 | |
| 41 | |
| 42 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; |
| 43 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; |
| 44 | static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; |
| 45 | |
| 46 | static const char card_name[] = "LX6464ES"; |
| 47 | |
| 48 | |
| 49 | #define PCI_DEVICE_ID_PLX_LX6464ES PCI_DEVICE_ID_PLX_9056 |
| 50 | |
| 51 | static struct pci_device_id snd_lx6464es_ids[] = { |
| 52 | { PCI_DEVICE(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES), |
| 53 | .subvendor = PCI_VENDOR_ID_DIGIGRAM, |
| 54 | .subdevice = PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_SERIAL_SUBSYSTEM |
| 55 | }, /* LX6464ES */ |
| 56 | { PCI_DEVICE(PCI_VENDOR_ID_PLX, PCI_DEVICE_ID_PLX_LX6464ES), |
| 57 | .subvendor = PCI_VENDOR_ID_DIGIGRAM, |
| 58 | .subdevice = PCI_SUBDEVICE_ID_DIGIGRAM_LX6464ES_CAE_SERIAL_SUBSYSTEM |
| 59 | }, /* LX6464ES-CAE */ |
| 60 | { 0, }, |
| 61 | }; |
| 62 | |
| 63 | MODULE_DEVICE_TABLE(pci, snd_lx6464es_ids); |
| 64 | |
| 65 | |
| 66 | |
| 67 | /* PGO pour USERo dans le registre pci_0x06/loc_0xEC */ |
| 68 | #define CHIPSC_RESET_XILINX (1L<<16) |
| 69 | |
| 70 | |
| 71 | /* alsa callbacks */ |
| 72 | static struct snd_pcm_hardware lx_caps = { |
| 73 | .info = (SNDRV_PCM_INFO_MMAP | |
| 74 | SNDRV_PCM_INFO_INTERLEAVED | |
| 75 | SNDRV_PCM_INFO_MMAP_VALID | |
| 76 | SNDRV_PCM_INFO_SYNC_START), |
| 77 | .formats = (SNDRV_PCM_FMTBIT_S16_LE | |
| 78 | SNDRV_PCM_FMTBIT_S16_BE | |
| 79 | SNDRV_PCM_FMTBIT_S24_3LE | |
| 80 | SNDRV_PCM_FMTBIT_S24_3BE), |
| 81 | .rates = (SNDRV_PCM_RATE_CONTINUOUS | |
| 82 | SNDRV_PCM_RATE_8000_192000), |
| 83 | .rate_min = 8000, |
| 84 | .rate_max = 192000, |
| 85 | .channels_min = 2, |
| 86 | .channels_max = 64, |
| 87 | .buffer_bytes_max = 64*2*3*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER, |
| 88 | .period_bytes_min = (2*2*MICROBLAZE_IBL_MIN*2), |
| 89 | .period_bytes_max = (4*64*MICROBLAZE_IBL_MAX*MAX_STREAM_BUFFER), |
| 90 | .periods_min = 2, |
| 91 | .periods_max = MAX_STREAM_BUFFER, |
| 92 | }; |
| 93 | |
| 94 | static int lx_set_granularity(struct lx6464es *chip, u32 gran); |
| 95 | |
| 96 | |
| 97 | static int lx_hardware_open(struct lx6464es *chip, |
| 98 | struct snd_pcm_substream *substream) |
| 99 | { |
| 100 | int err = 0; |
| 101 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 102 | int channels = runtime->channels; |
| 103 | int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); |
| 104 | |
| 105 | snd_pcm_uframes_t period_size = runtime->period_size; |
| 106 | |
| 107 | snd_printd(LXP "allocating pipe for %d channels\n", channels); |
| 108 | err = lx_pipe_allocate(chip, 0, is_capture, channels); |
| 109 | if (err < 0) { |
| 110 | snd_printk(KERN_ERR LXP "allocating pipe failed\n"); |
| 111 | return err; |
| 112 | } |
| 113 | |
| 114 | err = lx_set_granularity(chip, period_size); |
| 115 | if (err < 0) { |
| 116 | snd_printk(KERN_ERR LXP "setting granularity to %ld failed\n", |
| 117 | period_size); |
| 118 | return err; |
| 119 | } |
| 120 | |
| 121 | return 0; |
| 122 | } |
| 123 | |
| 124 | static int lx_hardware_start(struct lx6464es *chip, |
| 125 | struct snd_pcm_substream *substream) |
| 126 | { |
| 127 | int err = 0; |
| 128 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 129 | int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); |
| 130 | |
| 131 | snd_printd(LXP "setting stream format\n"); |
| 132 | err = lx_stream_set_format(chip, runtime, 0, is_capture); |
| 133 | if (err < 0) { |
| 134 | snd_printk(KERN_ERR LXP "setting stream format failed\n"); |
| 135 | return err; |
| 136 | } |
| 137 | |
| 138 | snd_printd(LXP "starting pipe\n"); |
| 139 | err = lx_pipe_start(chip, 0, is_capture); |
| 140 | if (err < 0) { |
| 141 | snd_printk(KERN_ERR LXP "starting pipe failed\n"); |
| 142 | return err; |
| 143 | } |
| 144 | |
| 145 | snd_printd(LXP "waiting for pipe to start\n"); |
| 146 | err = lx_pipe_wait_for_start(chip, 0, is_capture); |
| 147 | if (err < 0) { |
| 148 | snd_printk(KERN_ERR LXP "waiting for pipe failed\n"); |
| 149 | return err; |
| 150 | } |
| 151 | |
| 152 | return err; |
| 153 | } |
| 154 | |
| 155 | |
| 156 | static int lx_hardware_stop(struct lx6464es *chip, |
| 157 | struct snd_pcm_substream *substream) |
| 158 | { |
| 159 | int err = 0; |
| 160 | int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); |
| 161 | |
| 162 | snd_printd(LXP "pausing pipe\n"); |
| 163 | err = lx_pipe_pause(chip, 0, is_capture); |
| 164 | if (err < 0) { |
| 165 | snd_printk(KERN_ERR LXP "pausing pipe failed\n"); |
| 166 | return err; |
| 167 | } |
| 168 | |
| 169 | snd_printd(LXP "waiting for pipe to become idle\n"); |
| 170 | err = lx_pipe_wait_for_idle(chip, 0, is_capture); |
| 171 | if (err < 0) { |
| 172 | snd_printk(KERN_ERR LXP "waiting for pipe failed\n"); |
| 173 | return err; |
| 174 | } |
| 175 | |
| 176 | snd_printd(LXP "stopping pipe\n"); |
| 177 | err = lx_pipe_stop(chip, 0, is_capture); |
| 178 | if (err < 0) { |
| 179 | snd_printk(LXP "stopping pipe failed\n"); |
| 180 | return err; |
| 181 | } |
| 182 | |
| 183 | return err; |
| 184 | } |
| 185 | |
| 186 | |
| 187 | static int lx_hardware_close(struct lx6464es *chip, |
| 188 | struct snd_pcm_substream *substream) |
| 189 | { |
| 190 | int err = 0; |
| 191 | int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); |
| 192 | |
| 193 | snd_printd(LXP "releasing pipe\n"); |
| 194 | err = lx_pipe_release(chip, 0, is_capture); |
| 195 | if (err < 0) { |
| 196 | snd_printk(LXP "releasing pipe failed\n"); |
| 197 | return err; |
| 198 | } |
| 199 | |
| 200 | return err; |
| 201 | } |
| 202 | |
| 203 | |
| 204 | static int lx_pcm_open(struct snd_pcm_substream *substream) |
| 205 | { |
| 206 | struct lx6464es *chip = snd_pcm_substream_chip(substream); |
| 207 | struct snd_pcm_runtime *runtime = substream->runtime; |
| 208 | int err = 0; |
| 209 | int board_rate; |
| 210 | |
| 211 | snd_printdd("->lx_pcm_open\n"); |
| 212 | mutex_lock(&chip->setup_mutex); |
| 213 | |
| 214 | /* copy the struct snd_pcm_hardware struct */ |
| 215 | runtime->hw = lx_caps; |
| 216 | |
| 217 | #if 0 |
| 218 | /* buffer-size should better be multiple of period-size */ |
| 219 | err = snd_pcm_hw_constraint_integer(runtime, |
| 220 | SNDRV_PCM_HW_PARAM_PERIODS); |
| 221 | if (err < 0) { |
| 222 | snd_printk(KERN_WARNING LXP "could not constrain periods\n"); |
| 223 | goto exit; |
| 224 | } |
| 225 | #endif |
| 226 | |
| 227 | /* the clock rate cannot be changed */ |
| 228 | board_rate = chip->board_sample_rate; |
| 229 | err = snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_RATE, |
| 230 | board_rate, board_rate); |
| 231 | |
| 232 | if (err < 0) { |
| 233 | snd_printk(KERN_WARNING LXP "could not constrain periods\n"); |
| 234 | goto exit; |
| 235 | } |
| 236 | |
| 237 | /* constrain period size */ |
| 238 | err = snd_pcm_hw_constraint_minmax(runtime, |
| 239 | SNDRV_PCM_HW_PARAM_PERIOD_SIZE, |
| 240 | MICROBLAZE_IBL_MIN, |
| 241 | MICROBLAZE_IBL_MAX); |
| 242 | if (err < 0) { |
| 243 | snd_printk(KERN_WARNING LXP |
| 244 | "could not constrain period size\n"); |
| 245 | goto exit; |
| 246 | } |
| 247 | |
| 248 | snd_pcm_hw_constraint_step(runtime, 0, |
| 249 | SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 32); |
| 250 | |
| 251 | snd_pcm_set_sync(substream); |
| 252 | err = 0; |
| 253 | |
| 254 | exit: |
| 255 | runtime->private_data = chip; |
| 256 | |
| 257 | mutex_unlock(&chip->setup_mutex); |
| 258 | snd_printdd("<-lx_pcm_open, %d\n", err); |
| 259 | return err; |
| 260 | } |
| 261 | |
| 262 | static int lx_pcm_close(struct snd_pcm_substream *substream) |
| 263 | { |
| 264 | int err = 0; |
| 265 | snd_printdd("->lx_pcm_close\n"); |
| 266 | return err; |
| 267 | } |
| 268 | |
| 269 | static snd_pcm_uframes_t lx_pcm_stream_pointer(struct snd_pcm_substream |
| 270 | *substream) |
| 271 | { |
| 272 | struct lx6464es *chip = snd_pcm_substream_chip(substream); |
| 273 | snd_pcm_uframes_t pos; |
| 274 | unsigned long flags; |
| 275 | int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); |
| 276 | |
| 277 | struct lx_stream *lx_stream = is_capture ? &chip->capture_stream : |
| 278 | &chip->playback_stream; |
| 279 | |
| 280 | snd_printdd("->lx_pcm_stream_pointer\n"); |
| 281 | |
| 282 | spin_lock_irqsave(&chip->lock, flags); |
| 283 | pos = lx_stream->frame_pos * substream->runtime->period_size; |
| 284 | spin_unlock_irqrestore(&chip->lock, flags); |
| 285 | |
| 286 | snd_printdd(LXP "stream_pointer at %ld\n", pos); |
| 287 | return pos; |
| 288 | } |
| 289 | |
| 290 | static int lx_pcm_prepare(struct snd_pcm_substream *substream) |
| 291 | { |
| 292 | struct lx6464es *chip = snd_pcm_substream_chip(substream); |
| 293 | int err = 0; |
| 294 | const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); |
| 295 | |
| 296 | snd_printdd("->lx_pcm_prepare\n"); |
| 297 | |
| 298 | mutex_lock(&chip->setup_mutex); |
| 299 | |
| 300 | if (chip->hardware_running[is_capture]) { |
| 301 | err = lx_hardware_stop(chip, substream); |
| 302 | if (err < 0) { |
| 303 | snd_printk(KERN_ERR LXP "failed to stop hardware. " |
| 304 | "Error code %d\n", err); |
| 305 | goto exit; |
| 306 | } |
| 307 | |
| 308 | err = lx_hardware_close(chip, substream); |
| 309 | if (err < 0) { |
| 310 | snd_printk(KERN_ERR LXP "failed to close hardware. " |
| 311 | "Error code %d\n", err); |
| 312 | goto exit; |
| 313 | } |
| 314 | } |
| 315 | |
| 316 | snd_printd(LXP "opening hardware\n"); |
| 317 | err = lx_hardware_open(chip, substream); |
| 318 | if (err < 0) { |
| 319 | snd_printk(KERN_ERR LXP "failed to open hardware. " |
| 320 | "Error code %d\n", err); |
| 321 | goto exit; |
| 322 | } |
| 323 | |
| 324 | err = lx_hardware_start(chip, substream); |
| 325 | if (err < 0) { |
| 326 | snd_printk(KERN_ERR LXP "failed to start hardware. " |
| 327 | "Error code %d\n", err); |
| 328 | goto exit; |
| 329 | } |
| 330 | |
| 331 | chip->hardware_running[is_capture] = 1; |
| 332 | |
| 333 | if (chip->board_sample_rate != substream->runtime->rate) { |
| 334 | if (!err) |
| 335 | chip->board_sample_rate = substream->runtime->rate; |
| 336 | } |
| 337 | |
| 338 | exit: |
| 339 | mutex_unlock(&chip->setup_mutex); |
| 340 | return err; |
| 341 | } |
| 342 | |
| 343 | static int lx_pcm_hw_params(struct snd_pcm_substream *substream, |
| 344 | struct snd_pcm_hw_params *hw_params, int is_capture) |
| 345 | { |
| 346 | struct lx6464es *chip = snd_pcm_substream_chip(substream); |
| 347 | int err = 0; |
| 348 | |
| 349 | snd_printdd("->lx_pcm_hw_params\n"); |
| 350 | |
| 351 | mutex_lock(&chip->setup_mutex); |
| 352 | |
| 353 | /* set dma buffer */ |
| 354 | err = snd_pcm_lib_malloc_pages(substream, |
| 355 | params_buffer_bytes(hw_params)); |
| 356 | |
| 357 | if (is_capture) |
| 358 | chip->capture_stream.stream = substream; |
| 359 | else |
| 360 | chip->playback_stream.stream = substream; |
| 361 | |
| 362 | mutex_unlock(&chip->setup_mutex); |
| 363 | return err; |
| 364 | } |
| 365 | |
| 366 | static int lx_pcm_hw_params_playback(struct snd_pcm_substream *substream, |
| 367 | struct snd_pcm_hw_params *hw_params) |
| 368 | { |
| 369 | return lx_pcm_hw_params(substream, hw_params, 0); |
| 370 | } |
| 371 | |
| 372 | static int lx_pcm_hw_params_capture(struct snd_pcm_substream *substream, |
| 373 | struct snd_pcm_hw_params *hw_params) |
| 374 | { |
| 375 | return lx_pcm_hw_params(substream, hw_params, 1); |
| 376 | } |
| 377 | |
| 378 | static int lx_pcm_hw_free(struct snd_pcm_substream *substream) |
| 379 | { |
| 380 | struct lx6464es *chip = snd_pcm_substream_chip(substream); |
| 381 | int err = 0; |
| 382 | int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); |
| 383 | |
| 384 | snd_printdd("->lx_pcm_hw_free\n"); |
| 385 | mutex_lock(&chip->setup_mutex); |
| 386 | |
| 387 | if (chip->hardware_running[is_capture]) { |
| 388 | err = lx_hardware_stop(chip, substream); |
| 389 | if (err < 0) { |
| 390 | snd_printk(KERN_ERR LXP "failed to stop hardware. " |
| 391 | "Error code %d\n", err); |
| 392 | goto exit; |
| 393 | } |
| 394 | |
| 395 | err = lx_hardware_close(chip, substream); |
| 396 | if (err < 0) { |
| 397 | snd_printk(KERN_ERR LXP "failed to close hardware. " |
| 398 | "Error code %d\n", err); |
| 399 | goto exit; |
| 400 | } |
| 401 | |
| 402 | chip->hardware_running[is_capture] = 0; |
| 403 | } |
| 404 | |
| 405 | err = snd_pcm_lib_free_pages(substream); |
| 406 | |
| 407 | if (is_capture) |
| 408 | chip->capture_stream.stream = 0; |
| 409 | else |
| 410 | chip->playback_stream.stream = 0; |
| 411 | |
| 412 | exit: |
| 413 | mutex_unlock(&chip->setup_mutex); |
| 414 | return err; |
| 415 | } |
| 416 | |
| 417 | static void lx_trigger_start(struct lx6464es *chip, struct lx_stream *lx_stream) |
| 418 | { |
| 419 | struct snd_pcm_substream *substream = lx_stream->stream; |
| 420 | const int is_capture = lx_stream->is_capture; |
| 421 | |
| 422 | int err; |
| 423 | |
| 424 | const u32 channels = substream->runtime->channels; |
| 425 | const u32 bytes_per_frame = channels * 3; |
| 426 | const u32 period_size = substream->runtime->period_size; |
| 427 | const u32 periods = substream->runtime->periods; |
| 428 | const u32 period_bytes = period_size * bytes_per_frame; |
| 429 | |
| 430 | dma_addr_t buf = substream->dma_buffer.addr; |
| 431 | int i; |
| 432 | |
| 433 | u32 needed, freed; |
| 434 | u32 size_array[5]; |
| 435 | |
| 436 | for (i = 0; i != periods; ++i) { |
| 437 | u32 buffer_index = 0; |
| 438 | |
| 439 | err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, |
| 440 | size_array); |
| 441 | snd_printdd(LXP "starting: needed %d, freed %d\n", |
| 442 | needed, freed); |
| 443 | |
| 444 | err = lx_buffer_give(chip, 0, is_capture, period_bytes, |
| 445 | lower_32_bits(buf), upper_32_bits(buf), |
| 446 | &buffer_index); |
| 447 | |
| 448 | snd_printdd(LXP "starting: buffer index %x on %p (%d bytes)\n", |
| 449 | buffer_index, (void *)buf, period_bytes); |
| 450 | buf += period_bytes; |
| 451 | } |
| 452 | |
| 453 | err = lx_buffer_ask(chip, 0, is_capture, &needed, &freed, size_array); |
| 454 | snd_printdd(LXP "starting: needed %d, freed %d\n", needed, freed); |
| 455 | |
| 456 | snd_printd(LXP "starting: starting stream\n"); |
| 457 | err = lx_stream_start(chip, 0, is_capture); |
| 458 | if (err < 0) |
| 459 | snd_printk(KERN_ERR LXP "couldn't start stream\n"); |
| 460 | else |
| 461 | lx_stream->status = LX_STREAM_STATUS_RUNNING; |
| 462 | |
| 463 | lx_stream->frame_pos = 0; |
| 464 | } |
| 465 | |
| 466 | static void lx_trigger_stop(struct lx6464es *chip, struct lx_stream *lx_stream) |
| 467 | { |
| 468 | const int is_capture = lx_stream->is_capture; |
| 469 | int err; |
| 470 | |
| 471 | snd_printd(LXP "stopping: stopping stream\n"); |
| 472 | err = lx_stream_stop(chip, 0, is_capture); |
| 473 | if (err < 0) |
| 474 | snd_printk(KERN_ERR LXP "couldn't stop stream\n"); |
| 475 | else |
| 476 | lx_stream->status = LX_STREAM_STATUS_FREE; |
| 477 | |
| 478 | } |
| 479 | |
| 480 | static void lx_trigger_tasklet_dispatch_stream(struct lx6464es *chip, |
| 481 | struct lx_stream *lx_stream) |
| 482 | { |
| 483 | switch (lx_stream->status) { |
| 484 | case LX_STREAM_STATUS_SCHEDULE_RUN: |
| 485 | lx_trigger_start(chip, lx_stream); |
| 486 | break; |
| 487 | |
| 488 | case LX_STREAM_STATUS_SCHEDULE_STOP: |
| 489 | lx_trigger_stop(chip, lx_stream); |
| 490 | break; |
| 491 | |
| 492 | default: |
| 493 | break; |
| 494 | } |
| 495 | } |
| 496 | |
| 497 | static void lx_trigger_tasklet(unsigned long data) |
| 498 | { |
| 499 | struct lx6464es *chip = (struct lx6464es *)data; |
| 500 | unsigned long flags; |
| 501 | |
| 502 | snd_printdd("->lx_trigger_tasklet\n"); |
| 503 | |
| 504 | spin_lock_irqsave(&chip->lock, flags); |
| 505 | lx_trigger_tasklet_dispatch_stream(chip, &chip->capture_stream); |
| 506 | lx_trigger_tasklet_dispatch_stream(chip, &chip->playback_stream); |
| 507 | spin_unlock_irqrestore(&chip->lock, flags); |
| 508 | } |
| 509 | |
| 510 | static int lx_pcm_trigger_dispatch(struct lx6464es *chip, |
| 511 | struct lx_stream *lx_stream, int cmd) |
| 512 | { |
| 513 | int err = 0; |
| 514 | |
| 515 | switch (cmd) { |
| 516 | case SNDRV_PCM_TRIGGER_START: |
| 517 | lx_stream->status = LX_STREAM_STATUS_SCHEDULE_RUN; |
| 518 | break; |
| 519 | |
| 520 | case SNDRV_PCM_TRIGGER_STOP: |
| 521 | lx_stream->status = LX_STREAM_STATUS_SCHEDULE_STOP; |
| 522 | break; |
| 523 | |
| 524 | default: |
| 525 | err = -EINVAL; |
| 526 | goto exit; |
| 527 | } |
| 528 | tasklet_schedule(&chip->trigger_tasklet); |
| 529 | |
| 530 | exit: |
| 531 | return err; |
| 532 | } |
| 533 | |
| 534 | |
| 535 | static int lx_pcm_trigger(struct snd_pcm_substream *substream, int cmd) |
| 536 | { |
| 537 | struct lx6464es *chip = snd_pcm_substream_chip(substream); |
| 538 | const int is_capture = (substream->stream == SNDRV_PCM_STREAM_CAPTURE); |
| 539 | struct lx_stream *stream = is_capture ? &chip->capture_stream : |
| 540 | &chip->playback_stream; |
| 541 | |
| 542 | snd_printdd("->lx_pcm_trigger\n"); |
| 543 | |
| 544 | return lx_pcm_trigger_dispatch(chip, stream, cmd); |
| 545 | } |
| 546 | |
| 547 | static int snd_lx6464es_free(struct lx6464es *chip) |
| 548 | { |
| 549 | snd_printdd("->snd_lx6464es_free\n"); |
| 550 | |
| 551 | lx_irq_disable(chip); |
| 552 | |
| 553 | if (chip->irq >= 0) |
| 554 | free_irq(chip->irq, chip); |
| 555 | |
| 556 | iounmap(chip->port_dsp_bar); |
| 557 | ioport_unmap(chip->port_plx_remapped); |
| 558 | |
| 559 | pci_release_regions(chip->pci); |
| 560 | pci_disable_device(chip->pci); |
| 561 | |
| 562 | kfree(chip); |
| 563 | |
| 564 | return 0; |
| 565 | } |
| 566 | |
| 567 | static int snd_lx6464es_dev_free(struct snd_device *device) |
| 568 | { |
| 569 | return snd_lx6464es_free(device->device_data); |
| 570 | } |
| 571 | |
| 572 | /* reset the dsp during initialization */ |
| 573 | static int __devinit lx_init_xilinx_reset(struct lx6464es *chip) |
| 574 | { |
| 575 | int i; |
| 576 | u32 plx_reg = lx_plx_reg_read(chip, ePLX_CHIPSC); |
| 577 | |
| 578 | snd_printdd("->lx_init_xilinx_reset\n"); |
| 579 | |
| 580 | /* activate reset of xilinx */ |
| 581 | plx_reg &= ~CHIPSC_RESET_XILINX; |
| 582 | |
| 583 | lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg); |
| 584 | msleep(1); |
| 585 | |
| 586 | lx_plx_reg_write(chip, ePLX_MBOX3, 0); |
| 587 | msleep(1); |
| 588 | |
| 589 | plx_reg |= CHIPSC_RESET_XILINX; |
| 590 | lx_plx_reg_write(chip, ePLX_CHIPSC, plx_reg); |
| 591 | |
| 592 | /* deactivate reset of xilinx */ |
| 593 | for (i = 0; i != 100; ++i) { |
| 594 | u32 reg_mbox3; |
| 595 | msleep(10); |
| 596 | reg_mbox3 = lx_plx_reg_read(chip, ePLX_MBOX3); |
| 597 | if (reg_mbox3) { |
| 598 | snd_printd(LXP "xilinx reset done\n"); |
| 599 | snd_printdd(LXP "xilinx took %d loops\n", i); |
| 600 | break; |
| 601 | } |
| 602 | } |
| 603 | |
| 604 | /* todo: add some error handling? */ |
| 605 | |
| 606 | /* clear mr */ |
| 607 | lx_dsp_reg_write(chip, eReg_CSM, 0); |
| 608 | |
| 609 | /* le xilinx ES peut ne pas etre encore pret, on attend. */ |
| 610 | msleep(600); |
| 611 | |
| 612 | return 0; |
| 613 | } |
| 614 | |
| 615 | static int __devinit lx_init_xilinx_test(struct lx6464es *chip) |
| 616 | { |
| 617 | u32 reg; |
| 618 | |
| 619 | snd_printdd("->lx_init_xilinx_test\n"); |
| 620 | |
| 621 | /* TEST if we have access to Xilinx/MicroBlaze */ |
| 622 | lx_dsp_reg_write(chip, eReg_CSM, 0); |
| 623 | |
| 624 | reg = lx_dsp_reg_read(chip, eReg_CSM); |
| 625 | |
| 626 | if (reg) { |
| 627 | snd_printk(KERN_ERR LXP "Problem: Reg_CSM %x.\n", reg); |
| 628 | |
| 629 | /* PCI9056_SPACE0_REMAP */ |
| 630 | lx_plx_reg_write(chip, ePLX_PCICR, 1); |
| 631 | |
| 632 | reg = lx_dsp_reg_read(chip, eReg_CSM); |
| 633 | if (reg) { |
| 634 | snd_printk(KERN_ERR LXP "Error: Reg_CSM %x.\n", reg); |
| 635 | return -EAGAIN; /* seems to be appropriate */ |
| 636 | } |
| 637 | } |
| 638 | |
| 639 | snd_printd(LXP "Xilinx/MicroBlaze access test successful\n"); |
| 640 | |
| 641 | return 0; |
| 642 | } |
| 643 | |
| 644 | /* initialize ethersound */ |
| 645 | static int __devinit lx_init_ethersound_config(struct lx6464es *chip) |
| 646 | { |
| 647 | int i; |
| 648 | u32 orig_conf_es = lx_dsp_reg_read(chip, eReg_CONFES); |
| 649 | |
| 650 | u32 default_conf_es = (64 << IOCR_OUTPUTS_OFFSET) | |
| 651 | (64 << IOCR_INPUTS_OFFSET) | |
| 652 | (FREQ_RATIO_SINGLE_MODE << FREQ_RATIO_OFFSET); |
| 653 | |
| 654 | u32 conf_es = (orig_conf_es & CONFES_READ_PART_MASK) |
| 655 | | (default_conf_es & CONFES_WRITE_PART_MASK); |
| 656 | |
| 657 | snd_printdd("->lx_init_ethersound\n"); |
| 658 | |
| 659 | chip->freq_ratio = FREQ_RATIO_SINGLE_MODE; |
| 660 | |
| 661 | /* |
| 662 | * write it to the card ! |
| 663 | * this actually kicks the ES xilinx, the first time since poweron. |
| 664 | * the MAC address in the Reg_ADMACESMSB Reg_ADMACESLSB registers |
| 665 | * is not ready before this is done, and the bit 2 in Reg_CSES is set. |
| 666 | * */ |
| 667 | lx_dsp_reg_write(chip, eReg_CONFES, conf_es); |
| 668 | |
| 669 | for (i = 0; i != 1000; ++i) { |
| 670 | if (lx_dsp_reg_read(chip, eReg_CSES) & 4) { |
| 671 | snd_printd(LXP "ethersound initialized after %dms\n", |
| 672 | i); |
| 673 | goto ethersound_initialized; |
| 674 | } |
| 675 | msleep(1); |
| 676 | } |
| 677 | snd_printk(KERN_WARNING LXP |
| 678 | "ethersound could not be initialized after %dms\n", i); |
| 679 | return -ETIMEDOUT; |
| 680 | |
| 681 | ethersound_initialized: |
| 682 | snd_printd(LXP "ethersound initialized\n"); |
| 683 | return 0; |
| 684 | } |
| 685 | |
| 686 | static int __devinit lx_init_get_version_features(struct lx6464es *chip) |
| 687 | { |
| 688 | u32 dsp_version; |
| 689 | |
| 690 | int err; |
| 691 | |
| 692 | snd_printdd("->lx_init_get_version_features\n"); |
| 693 | |
| 694 | err = lx_dsp_get_version(chip, &dsp_version); |
| 695 | |
| 696 | if (err == 0) { |
| 697 | u32 freq; |
| 698 | |
| 699 | snd_printk(LXP "DSP version: V%02d.%02d #%d\n", |
| 700 | (dsp_version>>16) & 0xff, (dsp_version>>8) & 0xff, |
| 701 | dsp_version & 0xff); |
| 702 | |
| 703 | /* later: what firmware version do we expect? */ |
| 704 | |
| 705 | /* retrieve Play/Rec features */ |
| 706 | /* done here because we may have to handle alternate |
| 707 | * DSP files. */ |
| 708 | /* later */ |
| 709 | |
| 710 | /* init the EtherSound sample rate */ |
| 711 | err = lx_dsp_get_clock_frequency(chip, &freq); |
| 712 | if (err == 0) |
| 713 | chip->board_sample_rate = freq; |
| 714 | snd_printd(LXP "actual clock frequency %d\n", freq); |
| 715 | } else { |
| 716 | snd_printk(KERN_ERR LXP "DSP corrupted \n"); |
| 717 | err = -EAGAIN; |
| 718 | } |
| 719 | |
| 720 | return err; |
| 721 | } |
| 722 | |
| 723 | static int lx_set_granularity(struct lx6464es *chip, u32 gran) |
| 724 | { |
| 725 | int err = 0; |
| 726 | u32 snapped_gran = MICROBLAZE_IBL_MIN; |
| 727 | |
| 728 | snd_printdd("->lx_set_granularity\n"); |
| 729 | |
| 730 | /* blocksize is a power of 2 */ |
| 731 | while ((snapped_gran < gran) && |
| 732 | (snapped_gran < MICROBLAZE_IBL_MAX)) { |
| 733 | snapped_gran *= 2; |
| 734 | } |
| 735 | |
| 736 | if (snapped_gran == chip->pcm_granularity) |
| 737 | return 0; |
| 738 | |
| 739 | err = lx_dsp_set_granularity(chip, snapped_gran); |
| 740 | if (err < 0) { |
| 741 | snd_printk(KERN_WARNING LXP "could not set granularity\n"); |
| 742 | err = -EAGAIN; |
| 743 | } |
| 744 | |
| 745 | if (snapped_gran != gran) |
| 746 | snd_printk(LXP "snapped blocksize to %d\n", snapped_gran); |
| 747 | |
| 748 | snd_printd(LXP "set blocksize on board %d\n", snapped_gran); |
| 749 | chip->pcm_granularity = snapped_gran; |
| 750 | |
| 751 | return err; |
| 752 | } |
| 753 | |
| 754 | /* initialize and test the xilinx dsp chip */ |
| 755 | static int __devinit lx_init_dsp(struct lx6464es *chip) |
| 756 | { |
| 757 | int err; |
| 758 | u8 mac_address[6]; |
| 759 | int i; |
| 760 | |
| 761 | snd_printdd("->lx_init_dsp\n"); |
| 762 | |
| 763 | snd_printd(LXP "initialize board\n"); |
| 764 | err = lx_init_xilinx_reset(chip); |
| 765 | if (err) |
| 766 | return err; |
| 767 | |
| 768 | snd_printd(LXP "testing board\n"); |
| 769 | err = lx_init_xilinx_test(chip); |
| 770 | if (err) |
| 771 | return err; |
| 772 | |
| 773 | snd_printd(LXP "initialize ethersound configuration\n"); |
| 774 | err = lx_init_ethersound_config(chip); |
| 775 | if (err) |
| 776 | return err; |
| 777 | |
| 778 | lx_irq_enable(chip); |
| 779 | |
| 780 | /** \todo the mac address should be ready by not, but it isn't, |
| 781 | * so we wait for it */ |
| 782 | for (i = 0; i != 1000; ++i) { |
| 783 | err = lx_dsp_get_mac(chip, mac_address); |
| 784 | if (err) |
| 785 | return err; |
| 786 | if (mac_address[0] || mac_address[1] || mac_address[2] || |
| 787 | mac_address[3] || mac_address[4] || mac_address[5]) |
| 788 | goto mac_ready; |
| 789 | msleep(1); |
| 790 | } |
| 791 | return -ETIMEDOUT; |
| 792 | |
| 793 | mac_ready: |
| 794 | snd_printd(LXP "mac address ready read after: %dms\n", i); |
| 795 | snd_printk(LXP "mac address: %02X.%02X.%02X.%02X.%02X.%02X\n", |
| 796 | mac_address[0], mac_address[1], mac_address[2], |
| 797 | mac_address[3], mac_address[4], mac_address[5]); |
| 798 | |
| 799 | err = lx_init_get_version_features(chip); |
| 800 | if (err) |
| 801 | return err; |
| 802 | |
| 803 | lx_set_granularity(chip, MICROBLAZE_IBL_DEFAULT); |
| 804 | |
| 805 | chip->playback_mute = 0; |
| 806 | |
| 807 | return err; |
| 808 | } |
| 809 | |
| 810 | static struct snd_pcm_ops lx_ops_playback = { |
| 811 | .open = lx_pcm_open, |
| 812 | .close = lx_pcm_close, |
| 813 | .ioctl = snd_pcm_lib_ioctl, |
| 814 | .prepare = lx_pcm_prepare, |
| 815 | .hw_params = lx_pcm_hw_params_playback, |
| 816 | .hw_free = lx_pcm_hw_free, |
| 817 | .trigger = lx_pcm_trigger, |
| 818 | .pointer = lx_pcm_stream_pointer, |
| 819 | }; |
| 820 | |
| 821 | static struct snd_pcm_ops lx_ops_capture = { |
| 822 | .open = lx_pcm_open, |
| 823 | .close = lx_pcm_close, |
| 824 | .ioctl = snd_pcm_lib_ioctl, |
| 825 | .prepare = lx_pcm_prepare, |
| 826 | .hw_params = lx_pcm_hw_params_capture, |
| 827 | .hw_free = lx_pcm_hw_free, |
| 828 | .trigger = lx_pcm_trigger, |
| 829 | .pointer = lx_pcm_stream_pointer, |
| 830 | }; |
| 831 | |
| 832 | static int __devinit lx_pcm_create(struct lx6464es *chip) |
| 833 | { |
| 834 | int err; |
| 835 | struct snd_pcm *pcm; |
| 836 | |
| 837 | u32 size = 64 * /* channels */ |
| 838 | 3 * /* 24 bit samples */ |
| 839 | MAX_STREAM_BUFFER * /* periods */ |
| 840 | MICROBLAZE_IBL_MAX * /* frames per period */ |
| 841 | 2; /* duplex */ |
| 842 | |
| 843 | size = PAGE_ALIGN(size); |
| 844 | |
| 845 | /* hardcoded device name & channel count */ |
| 846 | err = snd_pcm_new(chip->card, (char *)card_name, 0, |
| 847 | 1, 1, &pcm); |
| 848 | |
| 849 | pcm->private_data = chip; |
| 850 | |
| 851 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &lx_ops_playback); |
| 852 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &lx_ops_capture); |
| 853 | |
| 854 | pcm->info_flags = 0; |
| 855 | strcpy(pcm->name, card_name); |
| 856 | |
| 857 | err = snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, |
| 858 | snd_dma_pci_data(chip->pci), |
| 859 | size, size); |
| 860 | if (err < 0) |
| 861 | return err; |
| 862 | |
| 863 | chip->pcm = pcm; |
| 864 | chip->capture_stream.is_capture = 1; |
| 865 | |
| 866 | return 0; |
| 867 | } |
| 868 | |
| 869 | static int lx_control_playback_info(struct snd_kcontrol *kcontrol, |
| 870 | struct snd_ctl_elem_info *uinfo) |
| 871 | { |
| 872 | uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; |
| 873 | uinfo->count = 1; |
| 874 | uinfo->value.integer.min = 0; |
| 875 | uinfo->value.integer.max = 1; |
| 876 | return 0; |
| 877 | } |
| 878 | |
| 879 | static int lx_control_playback_get(struct snd_kcontrol *kcontrol, |
| 880 | struct snd_ctl_elem_value *ucontrol) |
| 881 | { |
| 882 | struct lx6464es *chip = snd_kcontrol_chip(kcontrol); |
| 883 | ucontrol->value.integer.value[0] = chip->playback_mute; |
| 884 | return 0; |
| 885 | } |
| 886 | |
| 887 | static int lx_control_playback_put(struct snd_kcontrol *kcontrol, |
| 888 | struct snd_ctl_elem_value *ucontrol) |
| 889 | { |
| 890 | struct lx6464es *chip = snd_kcontrol_chip(kcontrol); |
| 891 | int changed = 0; |
| 892 | int current_value = chip->playback_mute; |
| 893 | |
| 894 | if (current_value != ucontrol->value.integer.value[0]) { |
| 895 | lx_level_unmute(chip, 0, !current_value); |
| 896 | chip->playback_mute = !current_value; |
| 897 | changed = 1; |
| 898 | } |
| 899 | return changed; |
| 900 | } |
| 901 | |
| 902 | static struct snd_kcontrol_new lx_control_playback_switch __devinitdata = { |
| 903 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| 904 | .name = "PCM Playback Switch", |
| 905 | .index = 0, |
| 906 | .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, |
| 907 | .private_value = 0, |
| 908 | .info = lx_control_playback_info, |
| 909 | .get = lx_control_playback_get, |
| 910 | .put = lx_control_playback_put |
| 911 | }; |
| 912 | |
| 913 | |
| 914 | |
| 915 | static void lx_proc_levels_read(struct snd_info_entry *entry, |
| 916 | struct snd_info_buffer *buffer) |
| 917 | { |
| 918 | u32 levels[64]; |
| 919 | int err; |
| 920 | int i, j; |
| 921 | struct lx6464es *chip = entry->private_data; |
| 922 | |
| 923 | snd_iprintf(buffer, "capture levels:\n"); |
| 924 | err = lx_level_peaks(chip, 1, 64, levels); |
| 925 | if (err < 0) |
| 926 | return; |
| 927 | |
| 928 | for (i = 0; i != 8; ++i) { |
| 929 | for (j = 0; j != 8; ++j) |
| 930 | snd_iprintf(buffer, "%08x ", levels[i*8+j]); |
| 931 | snd_iprintf(buffer, "\n"); |
| 932 | } |
| 933 | |
| 934 | snd_iprintf(buffer, "\nplayback levels:\n"); |
| 935 | |
| 936 | err = lx_level_peaks(chip, 0, 64, levels); |
| 937 | if (err < 0) |
| 938 | return; |
| 939 | |
| 940 | for (i = 0; i != 8; ++i) { |
| 941 | for (j = 0; j != 8; ++j) |
| 942 | snd_iprintf(buffer, "%08x ", levels[i*8+j]); |
| 943 | snd_iprintf(buffer, "\n"); |
| 944 | } |
| 945 | |
| 946 | snd_iprintf(buffer, "\n"); |
| 947 | } |
| 948 | |
| 949 | static int __devinit lx_proc_create(struct snd_card *card, struct lx6464es *chip) |
| 950 | { |
| 951 | struct snd_info_entry *entry; |
| 952 | int err = snd_card_proc_new(card, "levels", &entry); |
| 953 | if (err < 0) |
| 954 | return err; |
| 955 | |
| 956 | snd_info_set_text_ops(entry, chip, lx_proc_levels_read); |
| 957 | return 0; |
| 958 | } |
| 959 | |
| 960 | |
| 961 | static int __devinit snd_lx6464es_create(struct snd_card *card, |
| 962 | struct pci_dev *pci, |
| 963 | struct lx6464es **rchip) |
| 964 | { |
| 965 | struct lx6464es *chip; |
| 966 | int err; |
| 967 | |
| 968 | static struct snd_device_ops ops = { |
| 969 | .dev_free = snd_lx6464es_dev_free, |
| 970 | }; |
| 971 | |
| 972 | snd_printdd("->snd_lx6464es_create\n"); |
| 973 | |
| 974 | *rchip = NULL; |
| 975 | |
| 976 | /* enable PCI device */ |
| 977 | err = pci_enable_device(pci); |
| 978 | if (err < 0) |
| 979 | return err; |
| 980 | |
| 981 | pci_set_master(pci); |
| 982 | |
| 983 | /* check if we can restrict PCI DMA transfers to 32 bits */ |
| 984 | err = pci_set_dma_mask(pci, DMA_32BIT_MASK); |
| 985 | if (err < 0) { |
| 986 | snd_printk(KERN_ERR "architecture does not support " |
| 987 | "32bit PCI busmaster DMA\n"); |
| 988 | pci_disable_device(pci); |
| 989 | return -ENXIO; |
| 990 | } |
| 991 | |
| 992 | chip = kzalloc(sizeof(*chip), GFP_KERNEL); |
| 993 | if (chip == NULL) { |
| 994 | err = -ENOMEM; |
| 995 | goto alloc_failed; |
| 996 | } |
| 997 | |
| 998 | chip->card = card; |
| 999 | chip->pci = pci; |
| 1000 | chip->irq = -1; |
| 1001 | |
| 1002 | /* initialize synchronization structs */ |
| 1003 | spin_lock_init(&chip->lock); |
| 1004 | spin_lock_init(&chip->msg_lock); |
| 1005 | mutex_init(&chip->setup_mutex); |
| 1006 | tasklet_init(&chip->trigger_tasklet, lx_trigger_tasklet, |
| 1007 | (unsigned long)chip); |
| 1008 | tasklet_init(&chip->tasklet_capture, lx_tasklet_capture, |
| 1009 | (unsigned long)chip); |
| 1010 | tasklet_init(&chip->tasklet_playback, lx_tasklet_playback, |
| 1011 | (unsigned long)chip); |
| 1012 | |
| 1013 | /* request resources */ |
| 1014 | err = pci_request_regions(pci, card_name); |
| 1015 | if (err < 0) |
| 1016 | goto request_regions_failed; |
| 1017 | |
| 1018 | /* plx port */ |
| 1019 | chip->port_plx = pci_resource_start(pci, 1); |
| 1020 | chip->port_plx_remapped = ioport_map(chip->port_plx, |
| 1021 | pci_resource_len(pci, 1)); |
| 1022 | |
| 1023 | /* dsp port */ |
| 1024 | chip->port_dsp_bar = pci_ioremap_bar(pci, 2); |
| 1025 | |
| 1026 | err = request_irq(pci->irq, lx_interrupt, IRQF_SHARED, |
| 1027 | card_name, chip); |
| 1028 | if (err) { |
| 1029 | snd_printk(KERN_ERR LXP "unable to grab IRQ %d\n", pci->irq); |
| 1030 | goto request_irq_failed; |
| 1031 | } |
| 1032 | chip->irq = pci->irq; |
| 1033 | |
| 1034 | err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, chip, &ops); |
| 1035 | if (err < 0) |
| 1036 | goto device_new_failed; |
| 1037 | |
| 1038 | err = lx_init_dsp(chip); |
| 1039 | if (err < 0) { |
| 1040 | snd_printk(KERN_ERR LXP "error during DSP initialization\n"); |
| 1041 | return err; |
| 1042 | } |
| 1043 | |
| 1044 | err = lx_pcm_create(chip); |
| 1045 | if (err < 0) |
| 1046 | return err; |
| 1047 | |
| 1048 | err = lx_proc_create(card, chip); |
| 1049 | if (err < 0) |
| 1050 | return err; |
| 1051 | |
| 1052 | err = snd_ctl_add(card, snd_ctl_new1(&lx_control_playback_switch, |
| 1053 | chip)); |
| 1054 | if (err < 0) |
| 1055 | return err; |
| 1056 | |
| 1057 | snd_card_set_dev(card, &pci->dev); |
| 1058 | |
| 1059 | *rchip = chip; |
| 1060 | return 0; |
| 1061 | |
| 1062 | device_new_failed: |
| 1063 | free_irq(pci->irq, chip); |
| 1064 | |
| 1065 | request_irq_failed: |
| 1066 | pci_release_regions(pci); |
| 1067 | |
| 1068 | request_regions_failed: |
| 1069 | kfree(chip); |
| 1070 | |
| 1071 | alloc_failed: |
| 1072 | pci_disable_device(pci); |
| 1073 | |
| 1074 | return err; |
| 1075 | } |
| 1076 | |
| 1077 | static int __devinit snd_lx6464es_probe(struct pci_dev *pci, |
| 1078 | const struct pci_device_id *pci_id) |
| 1079 | { |
| 1080 | static int dev; |
| 1081 | struct snd_card *card; |
| 1082 | struct lx6464es *chip; |
| 1083 | int err; |
| 1084 | |
| 1085 | snd_printdd("->snd_lx6464es_probe\n"); |
| 1086 | |
| 1087 | if (dev >= SNDRV_CARDS) |
| 1088 | return -ENODEV; |
| 1089 | if (!enable[dev]) { |
| 1090 | dev++; |
| 1091 | return -ENOENT; |
| 1092 | } |
| 1093 | |
| 1094 | card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); |
| 1095 | if (card == NULL) |
| 1096 | return -ENOMEM; |
| 1097 | |
| 1098 | err = snd_lx6464es_create(card, pci, &chip); |
| 1099 | if (err < 0) { |
| 1100 | snd_printk(KERN_ERR LXP "error during snd_lx6464es_create\n"); |
| 1101 | goto out_free; |
| 1102 | } |
| 1103 | |
| 1104 | strcpy(card->driver, "lx6464es"); |
| 1105 | strcpy(card->shortname, "Digigram LX6464ES"); |
| 1106 | sprintf(card->longname, "%s at 0x%lx, 0x%p, irq %i", |
| 1107 | card->shortname, chip->port_plx, |
| 1108 | chip->port_dsp_bar, chip->irq); |
| 1109 | |
| 1110 | err = snd_card_register(card); |
| 1111 | if (err < 0) |
| 1112 | goto out_free; |
| 1113 | |
| 1114 | snd_printdd(LXP "initialization successful\n"); |
| 1115 | pci_set_drvdata(pci, card); |
| 1116 | dev++; |
| 1117 | return 0; |
| 1118 | |
| 1119 | out_free: |
| 1120 | snd_card_free(card); |
| 1121 | return err; |
| 1122 | |
| 1123 | } |
| 1124 | |
| 1125 | static void __devexit snd_lx6464es_remove(struct pci_dev *pci) |
| 1126 | { |
| 1127 | snd_card_free(pci_get_drvdata(pci)); |
| 1128 | pci_set_drvdata(pci, NULL); |
| 1129 | } |
| 1130 | |
| 1131 | |
| 1132 | static struct pci_driver driver = { |
| 1133 | .name = "Digigram LX6464ES", |
| 1134 | .id_table = snd_lx6464es_ids, |
| 1135 | .probe = snd_lx6464es_probe, |
| 1136 | .remove = __devexit_p(snd_lx6464es_remove), |
| 1137 | }; |
| 1138 | |
| 1139 | |
| 1140 | /* module initialization */ |
| 1141 | static int __init mod_init(void) |
| 1142 | { |
| 1143 | return pci_register_driver(&driver); |
| 1144 | } |
| 1145 | |
| 1146 | static void __exit mod_exit(void) |
| 1147 | { |
| 1148 | pci_unregister_driver(&driver); |
| 1149 | } |
| 1150 | |
| 1151 | module_init(mod_init); |
| 1152 | module_exit(mod_exit); |