Nickolay V. Shmyrev | 5f7591c | 2005-11-08 21:37:04 -0800 | [diff] [blame^] | 1 | /* |
| 2 | * |
| 3 | * Support for audio capture |
| 4 | * PCI function #1 of the saa7134 |
| 5 | * |
| 6 | * (c) 2005 Mauro Carvalho Chehab <mchehab@brturbo.com.br> |
| 7 | * (c) 2004 Gerd Knorr <kraxel@bytesex.org> |
| 8 | * (c) 2003 Clemens Ladisch <clemens@ladisch.de> |
| 9 | * |
| 10 | * This program is free software; you can redistribute it and/or modify |
| 11 | * it under the terms of the GNU General Public License as published by |
| 12 | * the Free Software Foundation; either version 2 of the License, or |
| 13 | * (at your option) any later version. |
| 14 | * |
| 15 | * This program is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | * GNU General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU General Public License |
| 21 | * along with this program; if not, write to the Free Software |
| 22 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 23 | */ |
| 24 | |
| 25 | #include <linux/module.h> |
| 26 | #include <linux/init.h> |
| 27 | #include <linux/device.h> |
| 28 | #include <linux/interrupt.h> |
| 29 | #include <asm/delay.h> |
| 30 | #include <sound/driver.h> |
| 31 | #include <sound/core.h> |
| 32 | #include <sound/pcm.h> |
| 33 | #include <sound/pcm_params.h> |
| 34 | #include <sound/control.h> |
| 35 | #include <sound/initval.h> |
| 36 | |
| 37 | #include "saa7134.h" |
| 38 | #include "saa7134-reg.h" |
| 39 | |
| 40 | #define dprintk(level,fmt, arg...) if (debug >= level) \ |
| 41 | printk(KERN_DEBUG "%s/1: " fmt, chip->core->name , ## arg) |
| 42 | |
| 43 | |
| 44 | /**************************************************************************** |
| 45 | Data type declarations - Can be moded to a header file later |
| 46 | ****************************************************************************/ |
| 47 | |
| 48 | #define ANALOG_CLOCK 1792000 |
| 49 | #define CLOCK_DIV_MIN 4 |
| 50 | #define CLOCK_DIV_MAX 15 |
| 51 | #define MAX_PCM_DEVICES 4 |
| 52 | #define MAX_PCM_SUBSTREAMS 16 |
| 53 | |
| 54 | enum { DEVICE_DIGITAL, DEVICE_ANALOG }; |
| 55 | |
| 56 | /* These can be replaced after done */ |
| 57 | #define MIXER_ADDR_LAST MAX_saa7134_INPUT |
| 58 | |
| 59 | struct saa7134_audio_dev { |
| 60 | struct saa7134_core *core; |
| 61 | struct saa7134_buffer *buf; |
| 62 | struct saa7134_dmaqueue q; |
| 63 | |
| 64 | /* pci i/o */ |
| 65 | struct pci_dev *pci; |
| 66 | unsigned char pci_rev,pci_lat; |
| 67 | |
| 68 | /* audio controls */ |
| 69 | int irq; |
| 70 | int dig_rate; /* Digital sampling rate */ |
| 71 | |
| 72 | snd_card_t *card; |
| 73 | |
| 74 | spinlock_t reg_lock; |
| 75 | |
| 76 | unsigned int dma_size; |
| 77 | unsigned int period_size; |
| 78 | |
| 79 | int mixer_volume[MIXER_ADDR_LAST+1][2]; |
| 80 | int capture_source[MIXER_ADDR_LAST+1][2]; |
| 81 | |
| 82 | long opened; |
| 83 | snd_pcm_substream_t *substream; |
| 84 | }; |
| 85 | typedef struct saa7134_audio_dev snd_saa7134_card_t; |
| 86 | |
| 87 | /**************************************************************************** |
| 88 | Module global static vars |
| 89 | ****************************************************************************/ |
| 90 | |
| 91 | static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ |
| 92 | static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ |
| 93 | static int enable[SNDRV_CARDS] = {1, [1 ... (SNDRV_CARDS - 1)] = 1}; |
| 94 | |
| 95 | module_param_array(enable, bool, NULL, 0444); |
| 96 | MODULE_PARM_DESC(enable, "Enable saa7134x soundcard. default enabled."); |
| 97 | |
| 98 | /**************************************************************************** |
| 99 | Module macros |
| 100 | ****************************************************************************/ |
| 101 | |
| 102 | MODULE_DESCRIPTION("ALSA driver module for saa7134 based TV cards"); |
| 103 | MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@brturbo.com.br>"); |
| 104 | MODULE_LICENSE("GPL"); |
| 105 | MODULE_SUPPORTED_DEVICE("{{Philips, saa7131E}," |
| 106 | "{{Philips, saa7134}," |
| 107 | "{{Philips, saa7133}"); |
| 108 | static unsigned int debug = 0; |
| 109 | module_param(debug,int,0644); |
| 110 | MODULE_PARM_DESC(debug,"enable debug messages"); |
| 111 | |
| 112 | /**************************************************************************** |
| 113 | Module specific funtions |
| 114 | ****************************************************************************/ |
| 115 | |
| 116 | /* |
| 117 | * BOARD Specific: Sets audio DMA |
| 118 | */ |
| 119 | |
| 120 | int saa7134_start_audio_dma(snd_saa7134_card_t *chip) |
| 121 | { |
| 122 | struct saa7134_core *core = chip->core; |
| 123 | |
| 124 | return 0; |
| 125 | } |
| 126 | |
| 127 | /* |
| 128 | * BOARD Specific: Resets audio DMA |
| 129 | */ |
| 130 | int saa7134_stop_audio_dma(snd_saa7134_card_t *chip) |
| 131 | { |
| 132 | struct saa7134_core *core=chip->core; |
| 133 | return 0; |
| 134 | } |
| 135 | |
| 136 | #define MAX_IRQ_LOOP 10 |
| 137 | |
| 138 | static void saa713401_timeout(unsigned long data) |
| 139 | { |
| 140 | snd_saa7134_card_t *chip = (snd_saa7134_card_t *)data; |
| 141 | } |
| 142 | |
| 143 | /* FIXME: Wrong values*/ |
| 144 | static char *saa7134_aud_irqs[32] = { |
| 145 | "y_risci1", "u_risci1", "v_risci1", "vbi_risc1", |
| 146 | "y_risci2", "u_risci2", "v_risci2", "vbi_risc2", |
| 147 | "y_oflow", "u_oflow", "v_oflow", "vbi_oflow", |
| 148 | "y_sync", "u_sync", "v_sync", "vbi_sync", |
| 149 | "opc_err", "par_err", "rip_err", "pci_abort", |
| 150 | }; |
| 151 | |
| 152 | |
| 153 | static void saa713401_aud_irq(snd_saa7134_card_t *chip) |
| 154 | { |
| 155 | struct saa7134_core *core = chip->core; |
| 156 | } |
| 157 | |
| 158 | static irqreturn_t saa7134_irq(int irq, void *dev_id, struct pt_regs *regs) |
| 159 | { |
| 160 | snd_saa7134_card_t *chip = dev_id; |
| 161 | struct saa7134_core *core = chip->core; |
| 162 | } |
| 163 | |
| 164 | /**************************************************************************** |
| 165 | ALSA PCM Interface |
| 166 | ****************************************************************************/ |
| 167 | |
| 168 | /* |
| 169 | * Digital hardware definition |
| 170 | */ |
| 171 | static snd_pcm_hardware_t snd_saa7134_digital_hw = { |
| 172 | .info = SNDRV_PCM_INFO_MMAP | |
| 173 | SNDRV_PCM_INFO_INTERLEAVED | |
| 174 | SNDRV_PCM_INFO_BLOCK_TRANSFER | |
| 175 | SNDRV_PCM_INFO_MMAP_VALID, |
| 176 | .formats = SNDRV_PCM_FMTBIT_S16_LE, |
| 177 | .rates = 0, /* set at runtime */ |
| 178 | .channels_min = 2, |
| 179 | .channels_max = 2, |
| 180 | .buffer_bytes_max = 255 * 4092, |
| 181 | .period_bytes_min = 32, |
| 182 | .period_bytes_max = 4092, |
| 183 | .periods_min = 2, |
| 184 | .periods_max = 255, |
| 185 | }; |
| 186 | |
| 187 | /* |
| 188 | * Sets board to provide digital audio |
| 189 | */ |
| 190 | static int snd_saa7134_set_digital_hw(snd_saa7134_card_t *chip, snd_pcm_runtime_t *runtime) |
| 191 | { |
| 192 | return 0; |
| 193 | } |
| 194 | |
| 195 | /* |
| 196 | * audio open callback |
| 197 | */ |
| 198 | static int snd_saa7134_pcm_open(snd_pcm_substream_t *substream) |
| 199 | { |
| 200 | snd_saa7134_card_t *chip = snd_pcm_substream_chip(substream); |
| 201 | snd_pcm_runtime_t *runtime = substream->runtime; |
| 202 | int err; |
| 203 | |
| 204 | if (test_and_set_bit(0, &chip->opened)) |
| 205 | return -EBUSY; |
| 206 | |
| 207 | err = snd_saa7134_set_digital_hw(chip, runtime); |
| 208 | |
| 209 | if (err < 0) |
| 210 | goto _error; |
| 211 | |
| 212 | err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); |
| 213 | if (err < 0) |
| 214 | goto _error; |
| 215 | |
| 216 | chip->substream = substream; |
| 217 | return 0; |
| 218 | |
| 219 | _error: |
| 220 | clear_bit(0, &chip->opened); |
| 221 | smp_mb__after_clear_bit(); |
| 222 | return err; |
| 223 | } |
| 224 | |
| 225 | /* |
| 226 | * audio close callback |
| 227 | */ |
| 228 | static int snd_saa7134_close(snd_pcm_substream_t *substream) |
| 229 | { |
| 230 | snd_saa7134_card_t *chip = snd_pcm_substream_chip(substream); |
| 231 | |
| 232 | chip->substream = NULL; |
| 233 | clear_bit(0, &chip->opened); |
| 234 | smp_mb__after_clear_bit(); |
| 235 | return 0; |
| 236 | } |
| 237 | |
| 238 | /* |
| 239 | * hw_params callback |
| 240 | */ |
| 241 | static int snd_saa7134_hw_params(snd_pcm_substream_t * substream, |
| 242 | snd_pcm_hw_params_t * hw_params) |
| 243 | { |
| 244 | return snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(hw_params)); |
| 245 | } |
| 246 | |
| 247 | /* |
| 248 | * hw free callback |
| 249 | */ |
| 250 | static int snd_saa7134_hw_free(snd_pcm_substream_t * substream) |
| 251 | { |
| 252 | return snd_pcm_lib_free_pages(substream); |
| 253 | } |
| 254 | |
| 255 | /* |
| 256 | * prepare callback |
| 257 | */ |
| 258 | static int snd_saa7134_prepare(snd_pcm_substream_t *substream) |
| 259 | { |
| 260 | snd_saa7134_card_t *chip = snd_pcm_substream_chip(substream); |
| 261 | return 0; |
| 262 | } |
| 263 | |
| 264 | |
| 265 | /* |
| 266 | * trigger callback |
| 267 | */ |
| 268 | static int snd_saa7134_card_trigger(snd_pcm_substream_t *substream, int cmd) |
| 269 | { |
| 270 | snd_saa7134_card_t *chip = snd_pcm_substream_chip(substream); |
| 271 | |
| 272 | switch (cmd) { |
| 273 | case SNDRV_PCM_TRIGGER_START: |
| 274 | return snd_saa7134_start(chip); |
| 275 | case SNDRV_PCM_TRIGGER_STOP: |
| 276 | return snd_saa7134_stop(chip); |
| 277 | default: |
| 278 | return -EINVAL; |
| 279 | } |
| 280 | } |
| 281 | |
| 282 | /* |
| 283 | * pointer callback |
| 284 | */ |
| 285 | static snd_pcm_uframes_t snd_saa7134_pointer(snd_pcm_substream_t *substream) |
| 286 | { |
| 287 | // snd_saa7134_card_t *chip = snd_pcm_substream_chip(substream); |
| 288 | // snd_pcm_runtime_t *runtime = substream->runtime; |
| 289 | |
| 290 | // return (snd_pcm_uframes_t)bytes_to_frames(runtime, chip->current_line * chip->line_bytes); |
| 291 | } |
| 292 | |
| 293 | /* |
| 294 | * operators |
| 295 | */ |
| 296 | static snd_pcm_ops_t snd_saa7134_pcm_ops = { |
| 297 | .open = snd_saa7134_pcm_open, |
| 298 | .close = snd_saa7134_close, |
| 299 | .ioctl = snd_pcm_lib_ioctl, |
| 300 | .hw_params = snd_saa7134_hw_params, |
| 301 | .hw_free = snd_saa7134_hw_free, |
| 302 | .prepare = snd_saa7134_prepare, |
| 303 | .trigger = snd_saa7134_card_trigger, |
| 304 | .pointer = snd_saa7134_pointer, |
| 305 | .page = snd_pcm_sgbuf_ops_page, |
| 306 | }; |
| 307 | |
| 308 | /* |
| 309 | * create a PCM device |
| 310 | */ |
| 311 | static int __devinit snd_saa7134_pcm(snd_saa7134_card_t *chip, int device, char *name) |
| 312 | { |
| 313 | int err; |
| 314 | snd_pcm_t *pcm; |
| 315 | |
| 316 | err = snd_pcm_new(chip->card, name, device, 0, 1, &pcm); |
| 317 | if (err < 0) |
| 318 | return err; |
| 319 | pcm->private_data = chip; |
| 320 | strcpy(pcm->name, name); |
| 321 | snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_saa7134_pcm_ops); |
| 322 | return snd_pcm_lib_preallocate_pages_for_all(pcm, |
| 323 | SNDRV_DMA_TYPE_DEV_SG, |
| 324 | snd_dma_pci_data(chip->pci), |
| 325 | 128 * 1024, |
| 326 | (255 * 4092 + 1023) & ~1023); |
| 327 | } |
| 328 | |
| 329 | /**************************************************************************** |
| 330 | CONTROL INTERFACE |
| 331 | ****************************************************************************/ |
| 332 | static int snd_saa7134_capture_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *info) |
| 333 | { |
| 334 | info->type = SNDRV_CTL_ELEM_TYPE_INTEGER; |
| 335 | info->count = 1; |
| 336 | info->value.integer.min = 0; |
| 337 | info->value.integer.max = 0x3f; |
| 338 | |
| 339 | return 0; |
| 340 | } |
| 341 | |
| 342 | /* OK - TODO: test it */ |
| 343 | static int snd_saa7134_capture_volume_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *value) |
| 344 | { |
| 345 | snd_saa7134_card_t *chip = snd_kcontrol_chip(kcontrol); |
| 346 | struct saa7134_core *core=chip->core; |
| 347 | |
| 348 | return 0; |
| 349 | } |
| 350 | |
| 351 | /* OK - TODO: test it */ |
| 352 | static int snd_saa7134_capture_volume_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *value) |
| 353 | { |
| 354 | snd_saa7134_card_t *chip = snd_kcontrol_chip(kcontrol); |
| 355 | struct saa7134_core *core=chip->core; |
| 356 | |
| 357 | return 0; |
| 358 | } |
| 359 | |
| 360 | static snd_kcontrol_new_t snd_saa7134_capture_volume = { |
| 361 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, |
| 362 | .name = "Capture Volume", |
| 363 | .info = snd_saa7134_capture_volume_info, |
| 364 | .get = snd_saa7134_capture_volume_get, |
| 365 | .put = snd_saa7134_capture_volume_put, |
| 366 | }; |
| 367 | |
| 368 | /* |
| 369 | *************************************** |
| 370 | */ |
| 371 | |
| 372 | /**************************************************************************** |
| 373 | Basic Flow for Sound Devices |
| 374 | ****************************************************************************/ |
| 375 | |
| 376 | /* |
| 377 | * PCI ID Table - 14f1:8801 and 14f1:8811 means function 1: Audio |
| 378 | * Only boards with eeprom and byte 1 at eeprom=1 have it |
| 379 | */ |
| 380 | |
| 381 | struct pci_device_id saa7134_audio_pci_tbl[] = { |
| 382 | {0x14f1,0x8801,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, |
| 383 | {0x14f1,0x8811,PCI_ANY_ID,PCI_ANY_ID,0,0,0}, |
| 384 | {0, } |
| 385 | }; |
| 386 | MODULE_DEVICE_TABLE(pci, saa7134_audio_pci_tbl); |
| 387 | |
| 388 | /* |
| 389 | * Chip-specific destructor |
| 390 | */ |
| 391 | |
| 392 | static int snd_saa7134_free(snd_saa7134_card_t *chip) |
| 393 | { |
| 394 | if (chip->irq >= 0) |
| 395 | free_irq(chip->irq, chip); |
| 396 | |
| 397 | /* free memory */ |
| 398 | saa7134_core_put(chip->core,chip->pci); |
| 399 | |
| 400 | pci_release_regions(chip->pci); |
| 401 | pci_disable_device(chip->pci); |
| 402 | |
| 403 | kfree(chip); |
| 404 | return 0; |
| 405 | } |
| 406 | |
| 407 | /* |
| 408 | * Component Destructor |
| 409 | */ |
| 410 | static int snd_saa7134_dev_free(snd_device_t *device) |
| 411 | { |
| 412 | snd_saa7134_card_t *chip = device->device_data; |
| 413 | return snd_saa7134_free(chip); |
| 414 | } |
| 415 | |
| 416 | |
| 417 | /* |
| 418 | * Alsa Constructor - Component probe |
| 419 | */ |
| 420 | |
| 421 | static int devno=0; |
| 422 | static int __devinit snd_saa7134_create(snd_card_t *card, struct pci_dev *pci, |
| 423 | snd_saa7134_card_t **rchip) |
| 424 | { |
| 425 | snd_saa7134_card_t *chip; |
| 426 | struct saa7134_core *core; |
| 427 | return 0; |
| 428 | } |
| 429 | |
| 430 | static int __devinit saa7134_audio_initdev(struct pci_dev *pci, |
| 431 | const struct pci_device_id *pci_id) |
| 432 | { |
| 433 | snd_card_t *card; |
| 434 | snd_saa7134_card_t *chip; |
| 435 | int err; |
| 436 | |
| 437 | if (devno >= SNDRV_CARDS) |
| 438 | return (-ENODEV); |
| 439 | |
| 440 | if (!enable[devno]) { |
| 441 | ++devno; |
| 442 | return (-ENOENT); |
| 443 | } |
| 444 | |
| 445 | card = snd_card_new(index[devno], id[devno], THIS_MODULE, 0); |
| 446 | if (!card) |
| 447 | return (-ENOMEM); |
| 448 | |
| 449 | err = snd_saa7134_create(card, pci, &chip); |
| 450 | if (err < 0) |
| 451 | return (err); |
| 452 | |
| 453 | /* |
| 454 | err = snd_saa7134_pcm(chip, DEVICE_DIGITAL, "saa7134 Digital"); |
| 455 | if (err < 0) |
| 456 | goto fail_free; |
| 457 | */ |
| 458 | err = snd_ctl_add(card, snd_ctl_new1(&snd_saa7134_capture_volume, chip)); |
| 459 | if (err < 0) { |
| 460 | snd_card_free(card); |
| 461 | return (err); |
| 462 | } |
| 463 | |
| 464 | strcpy (card->driver, "saa7134_ALSA"); |
| 465 | sprintf(card->shortname, "Saa7134 %x", pci->device); |
| 466 | sprintf(card->longname, "%s at %#lx", |
| 467 | card->shortname, pci_resource_start(pci, 0)); |
| 468 | strcpy (card->mixername, "saa7134"); |
| 469 | |
| 470 | dprintk (0, "%s/%i: Alsa support for saa7134x boards\n", |
| 471 | card->driver,devno); |
| 472 | |
| 473 | err = snd_card_register(card); |
| 474 | if (err < 0) { |
| 475 | snd_card_free(card); |
| 476 | return (err); |
| 477 | } |
| 478 | |
| 479 | pci_set_drvdata(pci,card); |
| 480 | |
| 481 | devno++; |
| 482 | return 0; |
| 483 | } |
| 484 | /* |
| 485 | * ALSA destructor |
| 486 | */ |
| 487 | static void __devexit saa7134_audio_finidev(struct pci_dev *pci) |
| 488 | { |
| 489 | snd_card_free(pci_get_drvdata(pci)); |
| 490 | pci_set_drvdata(pci, NULL); |
| 491 | |
| 492 | devno--; |
| 493 | } |
| 494 | |
| 495 | /* |
| 496 | * PCI driver definition |
| 497 | */ |
| 498 | |
| 499 | static struct pci_driver saa7134_audio_pci_driver = { |
| 500 | .name = "saa7134_audio", |
| 501 | .id_table = saa7134_audio_pci_tbl, |
| 502 | .probe = saa7134_audio_initdev, |
| 503 | .remove = saa7134_audio_finidev, |
| 504 | SND_PCI_PM_CALLBACKS |
| 505 | }; |
| 506 | |
| 507 | /**************************************************************************** |
| 508 | LINUX MODULE INIT |
| 509 | ****************************************************************************/ |
| 510 | |
| 511 | /* |
| 512 | * module init |
| 513 | */ |
| 514 | static int saa7134_audio_init(void) |
| 515 | { |
| 516 | printk(KERN_INFO "saa7134x alsa driver version %d.%d.%d loaded\n", |
| 517 | (saa7134_VERSION_CODE >> 16) & 0xff, |
| 518 | (saa7134_VERSION_CODE >> 8) & 0xff, |
| 519 | saa7134_VERSION_CODE & 0xff); |
| 520 | #ifdef SNAPSHOT |
| 521 | printk(KERN_INFO "saa7134x: snapshot date %04d-%02d-%02d\n", |
| 522 | SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100); |
| 523 | #endif |
| 524 | return pci_module_init(&saa7134_audio_pci_driver); |
| 525 | } |
| 526 | |
| 527 | /* |
| 528 | * module remove |
| 529 | */ |
| 530 | static void saa7134_audio_fini(void) |
| 531 | { |
| 532 | pci_unregister_driver(&saa7134_audio_pci_driver); |
| 533 | } |
| 534 | |
| 535 | module_init(saa7134_audio_init); |
| 536 | module_exit(saa7134_audio_fini); |
| 537 | |
| 538 | /* ----------------------------------------------------------- */ |
| 539 | /* |
| 540 | * Local variables: |
| 541 | * c-basic-offset: 8 |
| 542 | * End: |
| 543 | */ |