Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Audio driver for the NeoMagic 256AV and 256ZX chipsets in native |
| 3 | * mode, with AC97 mixer support. |
| 4 | * |
| 5 | * Overall design and parts of this code stolen from vidc_*.c and |
| 6 | * skeleton.c. |
| 7 | * |
| 8 | * Yeah, there are a lot of magic constants in here. You tell ME what |
| 9 | * they are. I just get this stuff psychically, remember? |
| 10 | * |
| 11 | * This driver was written by someone who wishes to remain anonymous. |
| 12 | * It is in the public domain, so share and enjoy. Try to make a profit |
| 13 | * off of it; go on, I dare you. |
| 14 | * |
| 15 | * Changes: |
| 16 | * 11-10-2000 Bartlomiej Zolnierkiewicz <bkz@linux-ide.org> |
| 17 | * Added some __init |
| 18 | * 19-04-2001 Marcus Meissner <mm@caldera.de> |
| 19 | * Ported to 2.4 PCI API. |
| 20 | */ |
| 21 | |
| 22 | #include <linux/pci.h> |
| 23 | #include <linux/init.h> |
| 24 | #include <linux/interrupt.h> |
| 25 | #include <linux/kernel.h> |
| 26 | #include <linux/module.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 27 | #include <linux/delay.h> |
| 28 | #include <linux/spinlock.h> |
| 29 | #include "sound_config.h" |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 30 | |
Adrian Bunk | 155542c | 2005-06-25 14:58:53 -0700 | [diff] [blame] | 31 | static int nm256_debug; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | static int force_load; |
| 33 | |
Dave Jones | 4f00945 | 2005-06-25 14:58:53 -0700 | [diff] [blame] | 34 | #include "nm256.h" |
| 35 | #include "nm256_coeff.h" |
| 36 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 37 | /* |
| 38 | * The size of the playback reserve. When the playback buffer has less |
| 39 | * than NM256_PLAY_WMARK_SIZE bytes to output, we request a new |
| 40 | * buffer. |
| 41 | */ |
| 42 | #define NM256_PLAY_WMARK_SIZE 512 |
| 43 | |
| 44 | static struct audio_driver nm256_audio_driver; |
| 45 | |
| 46 | static int nm256_grabInterrupt (struct nm256_info *card); |
| 47 | static int nm256_releaseInterrupt (struct nm256_info *card); |
| 48 | static irqreturn_t nm256_interrupt (int irq, void *dev_id, struct pt_regs *dummy); |
| 49 | static irqreturn_t nm256_interrupt_zx (int irq, void *dev_id, struct pt_regs *dummy); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 50 | |
| 51 | /* These belong in linux/pci.h. */ |
| 52 | #define PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO 0x8005 |
| 53 | #define PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO 0x8006 |
| 54 | #define PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO 0x8016 |
| 55 | |
| 56 | /* List of cards. */ |
| 57 | static struct nm256_info *nmcard_list; |
| 58 | |
| 59 | /* Release the mapped-in memory for CARD. */ |
| 60 | static void |
| 61 | nm256_release_ports (struct nm256_info *card) |
| 62 | { |
| 63 | int x; |
| 64 | |
| 65 | for (x = 0; x < 2; x++) { |
| 66 | if (card->port[x].ptr != NULL) { |
| 67 | iounmap (card->port[x].ptr); |
| 68 | card->port[x].ptr = NULL; |
| 69 | } |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | /* |
| 74 | * Map in the memory ports for CARD, if they aren't already mapped in |
| 75 | * and have been configured. If successful, a zero value is returned; |
| 76 | * otherwise any previously mapped-in areas are released and a non-zero |
| 77 | * value is returned. |
| 78 | * |
| 79 | * This is invoked twice, once for each port. Ideally it would only be |
| 80 | * called once, but we now need to map in the second port in order to |
| 81 | * check how much memory the card has on the 256ZX. |
| 82 | */ |
| 83 | static int |
| 84 | nm256_remap_ports (struct nm256_info *card) |
| 85 | { |
| 86 | int x; |
| 87 | |
| 88 | for (x = 0; x < 2; x++) { |
| 89 | if (card->port[x].ptr == NULL && card->port[x].end_offset > 0) { |
| 90 | u32 physaddr |
| 91 | = card->port[x].physaddr + card->port[x].start_offset; |
| 92 | u32 size |
| 93 | = card->port[x].end_offset - card->port[x].start_offset; |
| 94 | |
| 95 | card->port[x].ptr = ioremap_nocache (physaddr, size); |
| 96 | |
| 97 | if (card->port[x].ptr == NULL) { |
| 98 | printk (KERN_ERR "NM256: Unable to remap port %d\n", x + 1); |
| 99 | nm256_release_ports (card); |
| 100 | return -1; |
| 101 | } |
| 102 | } |
| 103 | } |
| 104 | return 0; |
| 105 | } |
| 106 | |
| 107 | /* Locate the card in our list. */ |
| 108 | static struct nm256_info * |
| 109 | nm256_find_card (int dev) |
| 110 | { |
| 111 | struct nm256_info *card; |
| 112 | |
| 113 | for (card = nmcard_list; card != NULL; card = card->next_card) |
| 114 | if (card->dev[0] == dev || card->dev[1] == dev) |
| 115 | return card; |
| 116 | |
| 117 | return NULL; |
| 118 | } |
| 119 | |
| 120 | /* |
| 121 | * Ditto, but find the card struct corresponding to the mixer device DEV |
| 122 | * instead. |
| 123 | */ |
| 124 | static struct nm256_info * |
| 125 | nm256_find_card_for_mixer (int dev) |
| 126 | { |
| 127 | struct nm256_info *card; |
| 128 | |
| 129 | for (card = nmcard_list; card != NULL; card = card->next_card) |
| 130 | if (card->mixer_oss_dev == dev) |
| 131 | return card; |
| 132 | |
| 133 | return NULL; |
| 134 | } |
| 135 | |
| 136 | static int usecache; |
| 137 | static int buffertop; |
| 138 | |
| 139 | /* Check to see if we're using the bank of cached coefficients. */ |
Adrian Bunk | 155542c | 2005-06-25 14:58:53 -0700 | [diff] [blame] | 140 | static int |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 141 | nm256_cachedCoefficients (struct nm256_info *card) |
| 142 | { |
| 143 | return usecache; |
| 144 | } |
| 145 | |
| 146 | /* The actual rates supported by the card. */ |
| 147 | static int samplerates[9] = { |
| 148 | 8000, 11025, 16000, 22050, 24000, 32000, 44100, 48000, 99999999 |
| 149 | }; |
| 150 | |
| 151 | /* |
| 152 | * Set the card samplerate, word size and stereo mode to correspond to |
| 153 | * the settings in the CARD struct for the specified device in DEV. |
| 154 | * We keep two separate sets of information, one for each device; the |
| 155 | * hardware is not actually configured until a read or write is |
| 156 | * attempted. |
| 157 | */ |
| 158 | |
| 159 | static int |
| 160 | nm256_setInfo (int dev, struct nm256_info *card) |
| 161 | { |
| 162 | int x; |
| 163 | int w; |
| 164 | int targetrate; |
| 165 | |
| 166 | if (card->dev[0] == dev) |
| 167 | w = 0; |
| 168 | else if (card->dev[1] == dev) |
| 169 | w = 1; |
| 170 | else |
| 171 | return -ENODEV; |
| 172 | |
| 173 | targetrate = card->sinfo[w].samplerate; |
| 174 | |
| 175 | if ((card->sinfo[w].bits != 8 && card->sinfo[w].bits != 16) |
| 176 | || targetrate < samplerates[0] |
| 177 | || targetrate > samplerates[7]) |
| 178 | return -EINVAL; |
| 179 | |
| 180 | for (x = 0; x < 8; x++) |
| 181 | if (targetrate < ((samplerates[x] + samplerates[x + 1]) / 2)) |
| 182 | break; |
| 183 | |
| 184 | if (x < 8) { |
| 185 | u8 ratebits = ((x << 4) & NM_RATE_MASK); |
| 186 | if (card->sinfo[w].bits == 16) |
| 187 | ratebits |= NM_RATE_BITS_16; |
| 188 | if (card->sinfo[w].stereo) |
| 189 | ratebits |= NM_RATE_STEREO; |
| 190 | |
| 191 | card->sinfo[w].samplerate = samplerates[x]; |
| 192 | |
| 193 | |
| 194 | if (card->dev_for_play == dev && card->playing) { |
| 195 | if (nm256_debug) |
| 196 | printk (KERN_DEBUG "Setting play ratebits to 0x%x\n", |
| 197 | ratebits); |
| 198 | nm256_loadCoefficient (card, 0, x); |
| 199 | nm256_writePort8 (card, 2, |
| 200 | NM_PLAYBACK_REG_OFFSET + NM_RATE_REG_OFFSET, |
| 201 | ratebits); |
| 202 | } |
| 203 | |
| 204 | if (card->dev_for_record == dev && card->recording) { |
| 205 | if (nm256_debug) |
| 206 | printk (KERN_DEBUG "Setting record ratebits to 0x%x\n", |
| 207 | ratebits); |
| 208 | nm256_loadCoefficient (card, 1, x); |
| 209 | nm256_writePort8 (card, 2, |
| 210 | NM_RECORD_REG_OFFSET + NM_RATE_REG_OFFSET, |
| 211 | ratebits); |
| 212 | } |
| 213 | return 0; |
| 214 | } |
| 215 | else |
| 216 | return -EINVAL; |
| 217 | } |
| 218 | |
| 219 | /* Start the play process going. */ |
| 220 | static void |
| 221 | startPlay (struct nm256_info *card) |
| 222 | { |
| 223 | if (! card->playing) { |
| 224 | card->playing = 1; |
| 225 | if (nm256_grabInterrupt (card) == 0) { |
| 226 | nm256_setInfo (card->dev_for_play, card); |
| 227 | |
| 228 | /* Enable playback engine and interrupts. */ |
| 229 | nm256_writePort8 (card, 2, NM_PLAYBACK_ENABLE_REG, |
| 230 | NM_PLAYBACK_ENABLE_FLAG | NM_PLAYBACK_FREERUN); |
| 231 | |
| 232 | /* Enable both channels. */ |
| 233 | nm256_writePort16 (card, 2, NM_AUDIO_MUTE_REG, 0x0); |
| 234 | } |
| 235 | } |
| 236 | } |
| 237 | |
| 238 | /* |
| 239 | * Request one chunk of AMT bytes from the recording device. When the |
| 240 | * operation is complete, the data will be copied into BUFFER and the |
| 241 | * function DMAbuf_inputintr will be invoked. |
| 242 | */ |
| 243 | |
| 244 | static void |
| 245 | nm256_startRecording (struct nm256_info *card, char *buffer, u32 amt) |
| 246 | { |
| 247 | u32 endpos; |
| 248 | int enableEngine = 0; |
| 249 | u32 ringsize = card->recordBufferSize; |
| 250 | unsigned long flags; |
| 251 | |
| 252 | if (amt > (ringsize / 2)) { |
| 253 | /* |
| 254 | * Of course this won't actually work right, because the |
| 255 | * caller is going to assume we will give what we got asked |
| 256 | * for. |
| 257 | */ |
| 258 | printk (KERN_ERR "NM256: Read request too large: %d\n", amt); |
| 259 | amt = ringsize / 2; |
| 260 | } |
| 261 | |
| 262 | if (amt < 8) { |
| 263 | printk (KERN_ERR "NM256: Read request too small; %d\n", amt); |
| 264 | return; |
| 265 | } |
| 266 | |
| 267 | spin_lock_irqsave(&card->lock,flags); |
| 268 | /* |
| 269 | * If we're not currently recording, set up the start and end registers |
| 270 | * for the recording engine. |
| 271 | */ |
| 272 | if (! card->recording) { |
| 273 | card->recording = 1; |
| 274 | if (nm256_grabInterrupt (card) == 0) { |
| 275 | card->curRecPos = 0; |
| 276 | nm256_setInfo (card->dev_for_record, card); |
| 277 | nm256_writePort32 (card, 2, NM_RBUFFER_START, card->abuf2); |
| 278 | nm256_writePort32 (card, 2, NM_RBUFFER_END, |
| 279 | card->abuf2 + ringsize); |
| 280 | |
| 281 | nm256_writePort32 (card, 2, NM_RBUFFER_CURRP, |
| 282 | card->abuf2 + card->curRecPos); |
| 283 | enableEngine = 1; |
| 284 | } |
| 285 | else { |
| 286 | /* Not sure what else to do here. */ |
| 287 | spin_unlock_irqrestore(&card->lock,flags); |
| 288 | return; |
| 289 | } |
| 290 | } |
| 291 | |
| 292 | /* |
| 293 | * If we happen to go past the end of the buffer a bit (due to a |
| 294 | * delayed interrupt) it's OK. So might as well set the watermark |
| 295 | * right at the end of the data we want. |
| 296 | */ |
| 297 | endpos = card->abuf2 + ((card->curRecPos + amt) % ringsize); |
| 298 | |
| 299 | card->recBuf = buffer; |
| 300 | card->requestedRecAmt = amt; |
| 301 | nm256_writePort32 (card, 2, NM_RBUFFER_WMARK, endpos); |
| 302 | /* Enable recording engine and interrupts. */ |
| 303 | if (enableEngine) |
| 304 | nm256_writePort8 (card, 2, NM_RECORD_ENABLE_REG, |
| 305 | NM_RECORD_ENABLE_FLAG | NM_RECORD_FREERUN); |
| 306 | |
| 307 | spin_unlock_irqrestore(&card->lock,flags); |
| 308 | } |
| 309 | |
| 310 | /* Stop the play engine. */ |
| 311 | static void |
| 312 | stopPlay (struct nm256_info *card) |
| 313 | { |
| 314 | /* Shut off sound from both channels. */ |
| 315 | nm256_writePort16 (card, 2, NM_AUDIO_MUTE_REG, |
| 316 | NM_AUDIO_MUTE_LEFT | NM_AUDIO_MUTE_RIGHT); |
| 317 | /* Disable play engine. */ |
| 318 | nm256_writePort8 (card, 2, NM_PLAYBACK_ENABLE_REG, 0); |
| 319 | if (card->playing) { |
| 320 | nm256_releaseInterrupt (card); |
| 321 | |
| 322 | /* Reset the relevant state bits. */ |
| 323 | card->playing = 0; |
| 324 | card->curPlayPos = 0; |
| 325 | } |
| 326 | } |
| 327 | |
| 328 | /* Stop recording. */ |
| 329 | static void |
| 330 | stopRecord (struct nm256_info *card) |
| 331 | { |
| 332 | /* Disable recording engine. */ |
| 333 | nm256_writePort8 (card, 2, NM_RECORD_ENABLE_REG, 0); |
| 334 | |
| 335 | if (card->recording) { |
| 336 | nm256_releaseInterrupt (card); |
| 337 | |
| 338 | card->recording = 0; |
| 339 | card->curRecPos = 0; |
| 340 | } |
| 341 | } |
| 342 | |
| 343 | /* |
| 344 | * Ring buffers, man. That's where the hip-hop, wild-n-wooly action's at. |
| 345 | * 1972? (Well, I suppose it was cheep-n-easy to implement.) |
| 346 | * |
| 347 | * Write AMT bytes of BUFFER to the playback ring buffer, and start the |
| 348 | * playback engine running. It will only accept up to 1/2 of the total |
| 349 | * size of the ring buffer. No check is made that we're about to overwrite |
| 350 | * the currently-playing sample. |
| 351 | */ |
| 352 | |
| 353 | static void |
| 354 | nm256_write_block (struct nm256_info *card, char *buffer, u32 amt) |
| 355 | { |
| 356 | u32 ringsize = card->playbackBufferSize; |
| 357 | u32 endstop; |
| 358 | unsigned long flags; |
| 359 | |
| 360 | if (amt > (ringsize / 2)) { |
| 361 | printk (KERN_ERR "NM256: Write request too large: %d\n", amt); |
| 362 | amt = (ringsize / 2); |
| 363 | } |
| 364 | |
| 365 | if (amt < NM256_PLAY_WMARK_SIZE) { |
| 366 | printk (KERN_ERR "NM256: Write request too small: %d\n", amt); |
| 367 | return; |
| 368 | } |
| 369 | |
| 370 | card->curPlayPos %= ringsize; |
| 371 | |
| 372 | card->requested_amt = amt; |
| 373 | |
| 374 | spin_lock_irqsave(&card->lock,flags); |
| 375 | |
| 376 | if ((card->curPlayPos + amt) >= ringsize) { |
| 377 | u32 rem = ringsize - card->curPlayPos; |
| 378 | |
| 379 | nm256_writeBuffer8 (card, buffer, 1, |
| 380 | card->abuf1 + card->curPlayPos, |
| 381 | rem); |
| 382 | if (amt > rem) |
| 383 | nm256_writeBuffer8 (card, buffer + rem, 1, card->abuf1, |
| 384 | amt - rem); |
| 385 | } |
| 386 | else |
| 387 | nm256_writeBuffer8 (card, buffer, 1, |
| 388 | card->abuf1 + card->curPlayPos, |
| 389 | amt); |
| 390 | |
| 391 | /* |
| 392 | * Setup the start-n-stop-n-limit registers, and start that engine |
| 393 | * goin'. |
| 394 | * |
| 395 | * Normally we just let it wrap around to avoid the click-click |
| 396 | * action scene. |
| 397 | */ |
| 398 | if (! card->playing) { |
| 399 | /* The PBUFFER_END register in this case points to one sample |
| 400 | before the end of the buffer. */ |
| 401 | int w = (card->dev_for_play == card->dev[0] ? 0 : 1); |
| 402 | int sampsize = (card->sinfo[w].bits == 16 ? 2 : 1); |
| 403 | |
| 404 | if (card->sinfo[w].stereo) |
| 405 | sampsize *= 2; |
| 406 | |
| 407 | /* Need to set the not-normally-changing-registers up. */ |
| 408 | nm256_writePort32 (card, 2, NM_PBUFFER_START, |
| 409 | card->abuf1 + card->curPlayPos); |
| 410 | nm256_writePort32 (card, 2, NM_PBUFFER_END, |
| 411 | card->abuf1 + ringsize - sampsize); |
| 412 | nm256_writePort32 (card, 2, NM_PBUFFER_CURRP, |
| 413 | card->abuf1 + card->curPlayPos); |
| 414 | } |
| 415 | endstop = (card->curPlayPos + amt - NM256_PLAY_WMARK_SIZE) % ringsize; |
| 416 | nm256_writePort32 (card, 2, NM_PBUFFER_WMARK, card->abuf1 + endstop); |
| 417 | |
| 418 | if (! card->playing) |
| 419 | startPlay (card); |
| 420 | |
| 421 | spin_unlock_irqrestore(&card->lock,flags); |
| 422 | } |
| 423 | |
| 424 | /* We just got a card playback interrupt; process it. */ |
| 425 | static void |
| 426 | nm256_get_new_block (struct nm256_info *card) |
| 427 | { |
| 428 | /* Check to see how much got played so far. */ |
| 429 | u32 amt = nm256_readPort32 (card, 2, NM_PBUFFER_CURRP) - card->abuf1; |
| 430 | |
| 431 | if (amt >= card->playbackBufferSize) { |
| 432 | printk (KERN_ERR "NM256: Sound playback pointer invalid!\n"); |
| 433 | amt = 0; |
| 434 | } |
| 435 | |
| 436 | if (amt < card->curPlayPos) |
| 437 | amt = (card->playbackBufferSize - card->curPlayPos) + amt; |
| 438 | else |
| 439 | amt -= card->curPlayPos; |
| 440 | |
| 441 | if (card->requested_amt > (amt + NM256_PLAY_WMARK_SIZE)) { |
| 442 | u32 endstop = |
| 443 | card->curPlayPos + card->requested_amt - NM256_PLAY_WMARK_SIZE; |
| 444 | nm256_writePort32 (card, 2, NM_PBUFFER_WMARK, card->abuf1 + endstop); |
| 445 | } |
| 446 | else { |
| 447 | card->curPlayPos += card->requested_amt; |
| 448 | /* Get a new block to write. This will eventually invoke |
| 449 | nm256_write_block () or stopPlay (). */ |
| 450 | DMAbuf_outputintr (card->dev_for_play, 1); |
| 451 | } |
| 452 | } |
| 453 | |
| 454 | /* |
| 455 | * Read the last-recorded block from the ring buffer, copy it into the |
| 456 | * saved buffer pointer, and invoke DMAuf_inputintr() with the recording |
| 457 | * device. |
| 458 | */ |
| 459 | |
| 460 | static void |
| 461 | nm256_read_block (struct nm256_info *card) |
| 462 | { |
| 463 | /* Grab the current position of the recording pointer. */ |
| 464 | u32 currptr = nm256_readPort32 (card, 2, NM_RBUFFER_CURRP) - card->abuf2; |
| 465 | u32 amtToRead = card->requestedRecAmt; |
| 466 | u32 ringsize = card->recordBufferSize; |
| 467 | |
| 468 | if (currptr >= card->recordBufferSize) { |
| 469 | printk (KERN_ERR "NM256: Sound buffer record pointer invalid!\n"); |
| 470 | currptr = 0; |
| 471 | } |
| 472 | |
| 473 | /* |
| 474 | * This test is probably redundant; we shouldn't be here unless |
| 475 | * it's true. |
| 476 | */ |
| 477 | if (card->recording) { |
| 478 | /* If we wrapped around, copy everything from the start of our |
| 479 | recording buffer to the end of the buffer. */ |
| 480 | if (currptr < card->curRecPos) { |
| 481 | u32 amt = min (ringsize - card->curRecPos, amtToRead); |
| 482 | |
| 483 | nm256_readBuffer8 (card, card->recBuf, 1, |
| 484 | card->abuf2 + card->curRecPos, |
| 485 | amt); |
| 486 | amtToRead -= amt; |
| 487 | card->curRecPos += amt; |
| 488 | card->recBuf += amt; |
| 489 | if (card->curRecPos == ringsize) |
| 490 | card->curRecPos = 0; |
| 491 | } |
| 492 | |
| 493 | if ((card->curRecPos < currptr) && (amtToRead > 0)) { |
| 494 | u32 amt = min (currptr - card->curRecPos, amtToRead); |
| 495 | nm256_readBuffer8 (card, card->recBuf, 1, |
| 496 | card->abuf2 + card->curRecPos, amt); |
| 497 | card->curRecPos = ((card->curRecPos + amt) % ringsize); |
| 498 | } |
| 499 | card->recBuf = NULL; |
| 500 | card->requestedRecAmt = 0; |
| 501 | DMAbuf_inputintr (card->dev_for_record); |
| 502 | } |
| 503 | } |
| 504 | |
| 505 | /* |
| 506 | * Initialize the hardware. |
| 507 | */ |
| 508 | static void |
| 509 | nm256_initHw (struct nm256_info *card) |
| 510 | { |
| 511 | /* Reset everything. */ |
| 512 | nm256_writePort8 (card, 2, 0x0, 0x11); |
| 513 | nm256_writePort16 (card, 2, 0x214, 0); |
| 514 | |
| 515 | stopRecord (card); |
| 516 | stopPlay (card); |
| 517 | } |
| 518 | |
| 519 | /* |
| 520 | * Handle a potential interrupt for the device referred to by DEV_ID. |
| 521 | * |
| 522 | * I don't like the cut-n-paste job here either between the two routines, |
| 523 | * but there are sufficient differences between the two interrupt handlers |
| 524 | * that parameterizing it isn't all that great either. (Could use a macro, |
| 525 | * I suppose...yucky bleah.) |
| 526 | */ |
| 527 | |
| 528 | static irqreturn_t |
| 529 | nm256_interrupt (int irq, void *dev_id, struct pt_regs *dummy) |
| 530 | { |
| 531 | struct nm256_info *card = (struct nm256_info *)dev_id; |
| 532 | u16 status; |
| 533 | static int badintrcount; |
| 534 | int handled = 0; |
| 535 | |
| 536 | if ((card == NULL) || (card->magsig != NM_MAGIC_SIG)) { |
| 537 | printk (KERN_ERR "NM256: Bad card pointer\n"); |
| 538 | return IRQ_NONE; |
| 539 | } |
| 540 | |
| 541 | status = nm256_readPort16 (card, 2, NM_INT_REG); |
| 542 | |
| 543 | /* Not ours. */ |
| 544 | if (status == 0) { |
| 545 | if (badintrcount++ > 1000) { |
| 546 | /* |
| 547 | * I'm not sure if the best thing is to stop the card from |
| 548 | * playing or just release the interrupt (after all, we're in |
| 549 | * a bad situation, so doing fancy stuff may not be such a good |
| 550 | * idea). |
| 551 | * |
| 552 | * I worry about the card engine continuing to play noise |
| 553 | * over and over, however--that could become a very |
| 554 | * obnoxious problem. And we know that when this usually |
| 555 | * happens things are fairly safe, it just means the user's |
| 556 | * inserted a PCMCIA card and someone's spamming us with IRQ 9s. |
| 557 | */ |
| 558 | |
| 559 | handled = 1; |
| 560 | if (card->playing) |
| 561 | stopPlay (card); |
| 562 | if (card->recording) |
| 563 | stopRecord (card); |
| 564 | badintrcount = 0; |
| 565 | } |
| 566 | return IRQ_RETVAL(handled); |
| 567 | } |
| 568 | |
| 569 | badintrcount = 0; |
| 570 | |
| 571 | /* Rather boring; check for individual interrupts and process them. */ |
| 572 | |
| 573 | if (status & NM_PLAYBACK_INT) { |
| 574 | handled = 1; |
| 575 | status &= ~NM_PLAYBACK_INT; |
| 576 | NM_ACK_INT (card, NM_PLAYBACK_INT); |
| 577 | |
| 578 | if (card->playing) |
| 579 | nm256_get_new_block (card); |
| 580 | } |
| 581 | |
| 582 | if (status & NM_RECORD_INT) { |
| 583 | handled = 1; |
| 584 | status &= ~NM_RECORD_INT; |
| 585 | NM_ACK_INT (card, NM_RECORD_INT); |
| 586 | |
| 587 | if (card->recording) |
| 588 | nm256_read_block (card); |
| 589 | } |
| 590 | |
| 591 | if (status & NM_MISC_INT_1) { |
| 592 | u8 cbyte; |
| 593 | |
| 594 | handled = 1; |
| 595 | status &= ~NM_MISC_INT_1; |
| 596 | printk (KERN_ERR "NM256: Got misc interrupt #1\n"); |
| 597 | NM_ACK_INT (card, NM_MISC_INT_1); |
| 598 | nm256_writePort16 (card, 2, NM_INT_REG, 0x8000); |
| 599 | cbyte = nm256_readPort8 (card, 2, 0x400); |
| 600 | nm256_writePort8 (card, 2, 0x400, cbyte | 2); |
| 601 | } |
| 602 | |
| 603 | if (status & NM_MISC_INT_2) { |
| 604 | u8 cbyte; |
| 605 | |
| 606 | handled = 1; |
| 607 | status &= ~NM_MISC_INT_2; |
| 608 | printk (KERN_ERR "NM256: Got misc interrupt #2\n"); |
| 609 | NM_ACK_INT (card, NM_MISC_INT_2); |
| 610 | cbyte = nm256_readPort8 (card, 2, 0x400); |
| 611 | nm256_writePort8 (card, 2, 0x400, cbyte & ~2); |
| 612 | } |
| 613 | |
| 614 | /* Unknown interrupt. */ |
| 615 | if (status) { |
| 616 | handled = 1; |
| 617 | printk (KERN_ERR "NM256: Fire in the hole! Unknown status 0x%x\n", |
| 618 | status); |
| 619 | /* Pray. */ |
| 620 | NM_ACK_INT (card, status); |
| 621 | } |
| 622 | return IRQ_RETVAL(handled); |
| 623 | } |
| 624 | |
| 625 | /* |
| 626 | * Handle a potential interrupt for the device referred to by DEV_ID. |
| 627 | * This handler is for the 256ZX, and is very similar to the non-ZX |
| 628 | * routine. |
| 629 | */ |
| 630 | |
| 631 | static irqreturn_t |
| 632 | nm256_interrupt_zx (int irq, void *dev_id, struct pt_regs *dummy) |
| 633 | { |
| 634 | struct nm256_info *card = (struct nm256_info *)dev_id; |
| 635 | u32 status; |
| 636 | static int badintrcount; |
| 637 | int handled = 0; |
| 638 | |
| 639 | if ((card == NULL) || (card->magsig != NM_MAGIC_SIG)) { |
| 640 | printk (KERN_ERR "NM256: Bad card pointer\n"); |
| 641 | return IRQ_NONE; |
| 642 | } |
| 643 | |
| 644 | status = nm256_readPort32 (card, 2, NM_INT_REG); |
| 645 | |
| 646 | /* Not ours. */ |
| 647 | if (status == 0) { |
| 648 | if (badintrcount++ > 1000) { |
| 649 | printk (KERN_ERR "NM256: Releasing interrupt, over 1000 invalid interrupts\n"); |
| 650 | /* |
| 651 | * I'm not sure if the best thing is to stop the card from |
| 652 | * playing or just release the interrupt (after all, we're in |
| 653 | * a bad situation, so doing fancy stuff may not be such a good |
| 654 | * idea). |
| 655 | * |
| 656 | * I worry about the card engine continuing to play noise |
| 657 | * over and over, however--that could become a very |
| 658 | * obnoxious problem. And we know that when this usually |
| 659 | * happens things are fairly safe, it just means the user's |
| 660 | * inserted a PCMCIA card and someone's spamming us with |
| 661 | * IRQ 9s. |
| 662 | */ |
| 663 | |
| 664 | handled = 1; |
| 665 | if (card->playing) |
| 666 | stopPlay (card); |
| 667 | if (card->recording) |
| 668 | stopRecord (card); |
| 669 | badintrcount = 0; |
| 670 | } |
| 671 | return IRQ_RETVAL(handled); |
| 672 | } |
| 673 | |
| 674 | badintrcount = 0; |
| 675 | |
| 676 | /* Rather boring; check for individual interrupts and process them. */ |
| 677 | |
| 678 | if (status & NM2_PLAYBACK_INT) { |
| 679 | handled = 1; |
| 680 | status &= ~NM2_PLAYBACK_INT; |
| 681 | NM2_ACK_INT (card, NM2_PLAYBACK_INT); |
| 682 | |
| 683 | if (card->playing) |
| 684 | nm256_get_new_block (card); |
| 685 | } |
| 686 | |
| 687 | if (status & NM2_RECORD_INT) { |
| 688 | handled = 1; |
| 689 | status &= ~NM2_RECORD_INT; |
| 690 | NM2_ACK_INT (card, NM2_RECORD_INT); |
| 691 | |
| 692 | if (card->recording) |
| 693 | nm256_read_block (card); |
| 694 | } |
| 695 | |
| 696 | if (status & NM2_MISC_INT_1) { |
| 697 | u8 cbyte; |
| 698 | |
| 699 | handled = 1; |
| 700 | status &= ~NM2_MISC_INT_1; |
| 701 | printk (KERN_ERR "NM256: Got misc interrupt #1\n"); |
| 702 | NM2_ACK_INT (card, NM2_MISC_INT_1); |
| 703 | cbyte = nm256_readPort8 (card, 2, 0x400); |
| 704 | nm256_writePort8 (card, 2, 0x400, cbyte | 2); |
| 705 | } |
| 706 | |
| 707 | if (status & NM2_MISC_INT_2) { |
| 708 | u8 cbyte; |
| 709 | |
| 710 | handled = 1; |
| 711 | status &= ~NM2_MISC_INT_2; |
| 712 | printk (KERN_ERR "NM256: Got misc interrupt #2\n"); |
| 713 | NM2_ACK_INT (card, NM2_MISC_INT_2); |
| 714 | cbyte = nm256_readPort8 (card, 2, 0x400); |
| 715 | nm256_writePort8 (card, 2, 0x400, cbyte & ~2); |
| 716 | } |
| 717 | |
| 718 | /* Unknown interrupt. */ |
| 719 | if (status) { |
| 720 | handled = 1; |
| 721 | printk (KERN_ERR "NM256: Fire in the hole! Unknown status 0x%x\n", |
| 722 | status); |
| 723 | /* Pray. */ |
| 724 | NM2_ACK_INT (card, status); |
| 725 | } |
| 726 | return IRQ_RETVAL(handled); |
| 727 | } |
| 728 | |
| 729 | /* |
| 730 | * Request our interrupt. |
| 731 | */ |
| 732 | static int |
| 733 | nm256_grabInterrupt (struct nm256_info *card) |
| 734 | { |
| 735 | if (card->has_irq++ == 0) { |
| 736 | if (request_irq (card->irq, card->introutine, SA_SHIRQ, |
| 737 | "NM256_audio", card) < 0) { |
| 738 | printk (KERN_ERR "NM256: can't obtain IRQ %d\n", card->irq); |
| 739 | return -1; |
| 740 | } |
| 741 | } |
| 742 | return 0; |
| 743 | } |
| 744 | |
| 745 | /* |
| 746 | * Release our interrupt. |
| 747 | */ |
| 748 | static int |
| 749 | nm256_releaseInterrupt (struct nm256_info *card) |
| 750 | { |
| 751 | if (card->has_irq <= 0) { |
| 752 | printk (KERN_ERR "nm256: too many calls to releaseInterrupt\n"); |
| 753 | return -1; |
| 754 | } |
| 755 | card->has_irq--; |
| 756 | if (card->has_irq == 0) { |
| 757 | free_irq (card->irq, card); |
| 758 | } |
| 759 | return 0; |
| 760 | } |
| 761 | |
| 762 | /* |
| 763 | * Waits for the mixer to become ready to be written; returns a zero value |
| 764 | * if it timed out. |
| 765 | */ |
| 766 | |
| 767 | static int |
| 768 | nm256_isReady (struct ac97_hwint *dev) |
| 769 | { |
| 770 | struct nm256_info *card = (struct nm256_info *)dev->driver_private; |
| 771 | int t2 = 10; |
| 772 | u32 testaddr; |
| 773 | u16 testb; |
| 774 | int done = 0; |
| 775 | |
| 776 | if (card->magsig != NM_MAGIC_SIG) { |
| 777 | printk (KERN_ERR "NM256: Bad magic signature in isReady!\n"); |
| 778 | return 0; |
| 779 | } |
| 780 | |
| 781 | testaddr = card->mixer_status_offset; |
| 782 | testb = card->mixer_status_mask; |
| 783 | |
| 784 | /* |
| 785 | * Loop around waiting for the mixer to become ready. |
| 786 | */ |
| 787 | while (! done && t2-- > 0) { |
| 788 | if ((nm256_readPort16 (card, 2, testaddr) & testb) == 0) |
| 789 | done = 1; |
| 790 | else |
| 791 | udelay (100); |
| 792 | } |
| 793 | return done; |
| 794 | } |
| 795 | |
| 796 | /* |
| 797 | * Return the contents of the AC97 mixer register REG. Returns a positive |
| 798 | * value if successful, or a negative error code. |
| 799 | */ |
| 800 | static int |
| 801 | nm256_readAC97Reg (struct ac97_hwint *dev, u8 reg) |
| 802 | { |
| 803 | struct nm256_info *card = (struct nm256_info *)dev->driver_private; |
| 804 | |
| 805 | if (card->magsig != NM_MAGIC_SIG) { |
| 806 | printk (KERN_ERR "NM256: Bad magic signature in readAC97Reg!\n"); |
| 807 | return -EINVAL; |
| 808 | } |
| 809 | |
| 810 | if (reg < 128) { |
| 811 | int res; |
| 812 | |
| 813 | nm256_isReady (dev); |
| 814 | res = nm256_readPort16 (card, 2, card->mixer + reg); |
| 815 | /* Magic delay. Bleah yucky. */ |
| 816 | udelay (1000); |
| 817 | return res; |
| 818 | } |
| 819 | else |
| 820 | return -EINVAL; |
| 821 | } |
| 822 | |
| 823 | /* |
| 824 | * Writes VALUE to AC97 mixer register REG. Returns 0 if successful, or |
| 825 | * a negative error code. |
| 826 | */ |
| 827 | static int |
| 828 | nm256_writeAC97Reg (struct ac97_hwint *dev, u8 reg, u16 value) |
| 829 | { |
| 830 | unsigned long flags; |
| 831 | int tries = 2; |
| 832 | int done = 0; |
| 833 | u32 base; |
| 834 | |
| 835 | struct nm256_info *card = (struct nm256_info *)dev->driver_private; |
| 836 | |
| 837 | if (card->magsig != NM_MAGIC_SIG) { |
| 838 | printk (KERN_ERR "NM256: Bad magic signature in writeAC97Reg!\n"); |
| 839 | return -EINVAL; |
| 840 | } |
| 841 | |
| 842 | base = card->mixer; |
| 843 | |
| 844 | spin_lock_irqsave(&card->lock,flags); |
| 845 | |
| 846 | nm256_isReady (dev); |
| 847 | |
| 848 | /* Wait for the write to take, too. */ |
| 849 | while ((tries-- > 0) && !done) { |
| 850 | nm256_writePort16 (card, 2, base + reg, value); |
| 851 | if (nm256_isReady (dev)) { |
| 852 | done = 1; |
| 853 | break; |
| 854 | } |
| 855 | |
| 856 | } |
| 857 | |
| 858 | spin_unlock_irqrestore(&card->lock,flags); |
| 859 | udelay (1000); |
| 860 | |
| 861 | return ! done; |
| 862 | } |
| 863 | |
| 864 | /* |
| 865 | * Initial register values to be written to the AC97 mixer. |
| 866 | * While most of these are identical to the reset values, we do this |
| 867 | * so that we have most of the register contents cached--this avoids |
| 868 | * reading from the mixer directly (which seems to be problematic, |
| 869 | * probably due to ignorance). |
| 870 | */ |
| 871 | struct initialValues |
| 872 | { |
| 873 | unsigned short port; |
| 874 | unsigned short value; |
| 875 | }; |
| 876 | |
| 877 | static struct initialValues nm256_ac97_initial_values[] = |
| 878 | { |
| 879 | { AC97_MASTER_VOL_STEREO, 0x8000 }, |
| 880 | { AC97_HEADPHONE_VOL, 0x8000 }, |
| 881 | { AC97_MASTER_VOL_MONO, 0x0000 }, |
| 882 | { AC97_PCBEEP_VOL, 0x0000 }, |
| 883 | { AC97_PHONE_VOL, 0x0008 }, |
| 884 | { AC97_MIC_VOL, 0x8000 }, |
| 885 | { AC97_LINEIN_VOL, 0x8808 }, |
| 886 | { AC97_CD_VOL, 0x8808 }, |
| 887 | { AC97_VIDEO_VOL, 0x8808 }, |
| 888 | { AC97_AUX_VOL, 0x8808 }, |
| 889 | { AC97_PCMOUT_VOL, 0x0808 }, |
| 890 | { AC97_RECORD_SELECT, 0x0000 }, |
| 891 | { AC97_RECORD_GAIN, 0x0B0B }, |
| 892 | { AC97_GENERAL_PURPOSE, 0x0000 }, |
| 893 | { 0xffff, 0xffff } |
| 894 | }; |
| 895 | |
| 896 | /* Initialize the AC97 into a known state. */ |
| 897 | static int |
| 898 | nm256_resetAC97 (struct ac97_hwint *dev) |
| 899 | { |
| 900 | struct nm256_info *card = (struct nm256_info *)dev->driver_private; |
| 901 | int x; |
| 902 | |
| 903 | if (card->magsig != NM_MAGIC_SIG) { |
| 904 | printk (KERN_ERR "NM256: Bad magic signature in resetAC97!\n"); |
| 905 | return -EINVAL; |
| 906 | } |
| 907 | |
| 908 | /* Reset the mixer. 'Tis magic! */ |
| 909 | nm256_writePort8 (card, 2, 0x6c0, 1); |
| 910 | // nm256_writePort8 (card, 2, 0x6cc, 0x87); /* This crashes Dell latitudes */ |
| 911 | nm256_writePort8 (card, 2, 0x6cc, 0x80); |
| 912 | nm256_writePort8 (card, 2, 0x6cc, 0x0); |
| 913 | |
| 914 | if (! card->mixer_values_init) { |
| 915 | for (x = 0; nm256_ac97_initial_values[x].port != 0xffff; x++) { |
| 916 | ac97_put_register (dev, |
| 917 | nm256_ac97_initial_values[x].port, |
| 918 | nm256_ac97_initial_values[x].value); |
| 919 | card->mixer_values_init = 1; |
| 920 | } |
| 921 | } |
| 922 | |
| 923 | return 0; |
| 924 | } |
| 925 | |
| 926 | /* |
| 927 | * We don't do anything particularly special here; it just passes the |
| 928 | * mixer ioctl to the AC97 driver. |
| 929 | */ |
| 930 | static int |
| 931 | nm256_default_mixer_ioctl (int dev, unsigned int cmd, void __user *arg) |
| 932 | { |
| 933 | struct nm256_info *card = nm256_find_card_for_mixer (dev); |
| 934 | if (card != NULL) |
| 935 | return ac97_mixer_ioctl (&(card->mdev), cmd, arg); |
| 936 | else |
| 937 | return -ENODEV; |
| 938 | } |
| 939 | |
| 940 | static struct mixer_operations nm256_mixer_operations = { |
| 941 | .owner = THIS_MODULE, |
| 942 | .id = "NeoMagic", |
| 943 | .name = "NM256AC97Mixer", |
| 944 | .ioctl = nm256_default_mixer_ioctl |
| 945 | }; |
| 946 | |
| 947 | /* |
| 948 | * Default settings for the OSS mixer. These are set last, after the |
| 949 | * mixer is initialized. |
| 950 | * |
| 951 | * I "love" C sometimes. Got braces? |
| 952 | */ |
| 953 | static struct ac97_mixer_value_list mixer_defaults[] = { |
| 954 | { SOUND_MIXER_VOLUME, { { 85, 85 } } }, |
| 955 | { SOUND_MIXER_SPEAKER, { { 100 } } }, |
| 956 | { SOUND_MIXER_PCM, { { 65, 65 } } }, |
| 957 | { SOUND_MIXER_CD, { { 65, 65 } } }, |
| 958 | { -1, { { 0, 0 } } } |
| 959 | }; |
| 960 | |
| 961 | |
| 962 | /* Installs the AC97 mixer into CARD. */ |
Andrew Morton | db31419 | 2006-05-20 15:00:35 -0700 | [diff] [blame] | 963 | static int __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 964 | nm256_install_mixer (struct nm256_info *card) |
| 965 | { |
| 966 | int mixer; |
| 967 | |
| 968 | card->mdev.reset_device = nm256_resetAC97; |
| 969 | card->mdev.read_reg = nm256_readAC97Reg; |
| 970 | card->mdev.write_reg = nm256_writeAC97Reg; |
| 971 | card->mdev.driver_private = (void *)card; |
| 972 | |
| 973 | if (ac97_init (&(card->mdev))) |
| 974 | return -1; |
| 975 | |
| 976 | mixer = sound_alloc_mixerdev(); |
| 977 | if (num_mixers >= MAX_MIXER_DEV) { |
| 978 | printk ("NM256 mixer: Unable to alloc mixerdev\n"); |
| 979 | return -1; |
| 980 | } |
| 981 | |
| 982 | mixer_devs[mixer] = &nm256_mixer_operations; |
| 983 | card->mixer_oss_dev = mixer; |
| 984 | |
| 985 | /* Some reasonable default values. */ |
| 986 | ac97_set_values (&(card->mdev), mixer_defaults); |
| 987 | |
| 988 | printk(KERN_INFO "Initialized AC97 mixer\n"); |
| 989 | return 0; |
| 990 | } |
| 991 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 992 | /* |
| 993 | * See if the signature left by the NM256 BIOS is intact; if so, we use |
| 994 | * the associated address as the end of our audio buffer in the video |
| 995 | * RAM. |
| 996 | */ |
| 997 | |
Andrew Morton | db31419 | 2006-05-20 15:00:35 -0700 | [diff] [blame] | 998 | static void __devinit |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 999 | nm256_peek_for_sig (struct nm256_info *card) |
| 1000 | { |
| 1001 | u32 port1offset |
| 1002 | = card->port[0].physaddr + card->port[0].end_offset - 0x0400; |
| 1003 | /* The signature is located 1K below the end of video RAM. */ |
| 1004 | char __iomem *temp = ioremap_nocache (port1offset, 16); |
| 1005 | /* Default buffer end is 5120 bytes below the top of RAM. */ |
| 1006 | u32 default_value = card->port[0].end_offset - 0x1400; |
| 1007 | u32 sig; |
| 1008 | |
| 1009 | /* Install the default value first, so we don't have to repeatedly |
| 1010 | do it if there is a problem. */ |
| 1011 | card->port[0].end_offset = default_value; |
| 1012 | |
| 1013 | if (temp == NULL) { |
| 1014 | printk (KERN_ERR "NM256: Unable to scan for card signature in video RAM\n"); |
| 1015 | return; |
| 1016 | } |
| 1017 | sig = readl (temp); |
| 1018 | if ((sig & NM_SIG_MASK) == NM_SIGNATURE) { |
| 1019 | u32 pointer = readl (temp + 4); |
| 1020 | |
| 1021 | /* |
| 1022 | * If it's obviously invalid, don't use it (the port already has a |
| 1023 | * suitable default value set). |
| 1024 | */ |
| 1025 | if (pointer != 0xffffffff) |
| 1026 | card->port[0].end_offset = pointer; |
| 1027 | |
| 1028 | printk (KERN_INFO "NM256: Found card signature in video RAM: 0x%x\n", |
| 1029 | pointer); |
| 1030 | } |
| 1031 | |
| 1032 | iounmap (temp); |
| 1033 | } |
| 1034 | |
| 1035 | /* |
| 1036 | * Install a driver for the PCI device referenced by PCIDEV. |
| 1037 | * VERSTR is a human-readable version string. |
| 1038 | */ |
| 1039 | |
| 1040 | static int __devinit |
| 1041 | nm256_install(struct pci_dev *pcidev, enum nm256rev rev, char *verstr) |
| 1042 | { |
| 1043 | struct nm256_info *card; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1044 | int x; |
| 1045 | |
| 1046 | if (pci_enable_device(pcidev)) |
| 1047 | return 0; |
| 1048 | |
| 1049 | card = kmalloc (sizeof (struct nm256_info), GFP_KERNEL); |
| 1050 | if (card == NULL) { |
| 1051 | printk (KERN_ERR "NM256: out of memory!\n"); |
| 1052 | return 0; |
| 1053 | } |
| 1054 | |
| 1055 | card->magsig = NM_MAGIC_SIG; |
| 1056 | card->playing = 0; |
| 1057 | card->recording = 0; |
| 1058 | card->rev = rev; |
Andrew Morton | db31419 | 2006-05-20 15:00:35 -0700 | [diff] [blame] | 1059 | spin_lock_init(&card->lock); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1060 | |
| 1061 | /* Init the memory port info. */ |
| 1062 | for (x = 0; x < 2; x++) { |
| 1063 | card->port[x].physaddr = pci_resource_start (pcidev, x); |
| 1064 | card->port[x].ptr = NULL; |
| 1065 | card->port[x].start_offset = 0; |
| 1066 | card->port[x].end_offset = 0; |
| 1067 | } |
| 1068 | |
| 1069 | /* Port 2 is easy. */ |
| 1070 | card->port[1].start_offset = 0; |
| 1071 | card->port[1].end_offset = NM_PORT2_SIZE; |
| 1072 | |
| 1073 | /* Yuck. But we have to map in port 2 so we can check how much RAM the |
| 1074 | card has. */ |
| 1075 | if (nm256_remap_ports (card)) { |
| 1076 | kfree (card); |
| 1077 | return 0; |
| 1078 | } |
| 1079 | |
| 1080 | /* |
| 1081 | * The NM256 has two memory ports. The first port is nothing |
| 1082 | * more than a chunk of video RAM, which is used as the I/O ring |
| 1083 | * buffer. The second port has the actual juicy stuff (like the |
| 1084 | * mixer and the playback engine control registers). |
| 1085 | */ |
| 1086 | |
| 1087 | if (card->rev == REV_NM256AV) { |
| 1088 | /* Ok, try to see if this is a non-AC97 version of the hardware. */ |
| 1089 | int pval = nm256_readPort16 (card, 2, NM_MIXER_PRESENCE); |
| 1090 | if ((pval & NM_PRESENCE_MASK) != NM_PRESENCE_VALUE) { |
| 1091 | if (! force_load) { |
| 1092 | printk (KERN_ERR "NM256: This doesn't look to me like the AC97-compatible version.\n"); |
| 1093 | printk (KERN_ERR " You can force the driver to load by passing in the module\n"); |
| 1094 | printk (KERN_ERR " parameter:\n"); |
| 1095 | printk (KERN_ERR " force_load = 1\n"); |
| 1096 | printk (KERN_ERR "\n"); |
| 1097 | printk (KERN_ERR " More likely, you should be using the appropriate SB-16 or\n"); |
| 1098 | printk (KERN_ERR " CS4232 driver instead. (If your BIOS has settings for\n"); |
| 1099 | printk (KERN_ERR " IRQ and/or DMA for the sound card, this is *not* the correct\n"); |
| 1100 | printk (KERN_ERR " driver to use.)\n"); |
| 1101 | nm256_release_ports (card); |
| 1102 | kfree (card); |
| 1103 | return 0; |
| 1104 | } |
| 1105 | else { |
| 1106 | printk (KERN_INFO "NM256: Forcing driver load as per user request.\n"); |
| 1107 | } |
| 1108 | } |
| 1109 | else { |
| 1110 | /* printk (KERN_INFO "NM256: Congratulations. You're not running Eunice.\n")*/; |
| 1111 | } |
| 1112 | card->port[0].end_offset = 2560 * 1024; |
| 1113 | card->introutine = nm256_interrupt; |
| 1114 | card->mixer_status_offset = NM_MIXER_STATUS_OFFSET; |
| 1115 | card->mixer_status_mask = NM_MIXER_READY_MASK; |
| 1116 | } |
| 1117 | else { |
| 1118 | /* Not sure if there is any relevant detect for the ZX or not. */ |
| 1119 | if (nm256_readPort8 (card, 2, 0xa0b) != 0) |
| 1120 | card->port[0].end_offset = 6144 * 1024; |
| 1121 | else |
| 1122 | card->port[0].end_offset = 4096 * 1024; |
| 1123 | |
| 1124 | card->introutine = nm256_interrupt_zx; |
| 1125 | card->mixer_status_offset = NM2_MIXER_STATUS_OFFSET; |
| 1126 | card->mixer_status_mask = NM2_MIXER_READY_MASK; |
| 1127 | } |
| 1128 | |
| 1129 | if (buffertop >= 98304 && buffertop < card->port[0].end_offset) |
| 1130 | card->port[0].end_offset = buffertop; |
| 1131 | else |
| 1132 | nm256_peek_for_sig (card); |
| 1133 | |
| 1134 | card->port[0].start_offset = card->port[0].end_offset - 98304; |
| 1135 | |
| 1136 | printk (KERN_INFO "NM256: Mapping port 1 from 0x%x - 0x%x\n", |
| 1137 | card->port[0].start_offset, card->port[0].end_offset); |
| 1138 | |
| 1139 | if (nm256_remap_ports (card)) { |
| 1140 | kfree (card); |
| 1141 | return 0; |
| 1142 | } |
| 1143 | |
| 1144 | /* See if we can get the interrupt. */ |
| 1145 | |
| 1146 | card->irq = pcidev->irq; |
| 1147 | card->has_irq = 0; |
| 1148 | |
| 1149 | if (nm256_grabInterrupt (card) != 0) { |
| 1150 | nm256_release_ports (card); |
| 1151 | kfree (card); |
| 1152 | return 0; |
| 1153 | } |
| 1154 | |
| 1155 | nm256_releaseInterrupt (card); |
| 1156 | |
| 1157 | /* |
| 1158 | * Init the board. |
| 1159 | */ |
| 1160 | |
| 1161 | card->playbackBufferSize = 16384; |
| 1162 | card->recordBufferSize = 16384; |
| 1163 | |
| 1164 | card->coeffBuf = card->port[0].end_offset - NM_MAX_COEFFICIENT; |
| 1165 | card->abuf2 = card->coeffBuf - card->recordBufferSize; |
| 1166 | card->abuf1 = card->abuf2 - card->playbackBufferSize; |
| 1167 | card->allCoeffBuf = card->abuf2 - (NM_TOTAL_COEFF_COUNT * 4); |
| 1168 | |
| 1169 | /* Fixed setting. */ |
| 1170 | card->mixer = NM_MIXER_OFFSET; |
| 1171 | card->mixer_values_init = 0; |
| 1172 | |
| 1173 | card->is_open_play = 0; |
| 1174 | card->is_open_record = 0; |
| 1175 | |
| 1176 | card->coeffsCurrent = 0; |
| 1177 | |
| 1178 | card->opencnt[0] = 0; card->opencnt[1] = 0; |
| 1179 | |
| 1180 | /* Reasonable default settings, but largely unnecessary. */ |
| 1181 | for (x = 0; x < 2; x++) { |
| 1182 | card->sinfo[x].bits = 8; |
| 1183 | card->sinfo[x].stereo = 0; |
| 1184 | card->sinfo[x].samplerate = 8000; |
| 1185 | } |
| 1186 | |
| 1187 | nm256_initHw (card); |
| 1188 | |
| 1189 | for (x = 0; x < 2; x++) { |
| 1190 | if ((card->dev[x] = |
| 1191 | sound_install_audiodrv(AUDIO_DRIVER_VERSION, |
| 1192 | "NM256", &nm256_audio_driver, |
| 1193 | sizeof(struct audio_driver), |
| 1194 | DMA_NODMA, AFMT_U8 | AFMT_S16_LE, |
| 1195 | NULL, -1, -1)) >= 0) { |
| 1196 | /* 1K minimum buffer size. */ |
| 1197 | audio_devs[card->dev[x]]->min_fragment = 10; |
| 1198 | /* Maximum of 8K buffer size. */ |
| 1199 | audio_devs[card->dev[x]]->max_fragment = 13; |
| 1200 | } |
| 1201 | else { |
| 1202 | printk(KERN_ERR "NM256: Too many PCM devices available\n"); |
| 1203 | nm256_release_ports (card); |
| 1204 | kfree (card); |
| 1205 | return 0; |
| 1206 | } |
| 1207 | } |
| 1208 | |
| 1209 | pci_set_drvdata(pcidev,card); |
| 1210 | |
| 1211 | /* Insert the card in the list. */ |
| 1212 | card->next_card = nmcard_list; |
| 1213 | nmcard_list = card; |
| 1214 | |
| 1215 | printk(KERN_INFO "Initialized NeoMagic %s audio in PCI native mode\n", |
| 1216 | verstr); |
| 1217 | |
| 1218 | /* |
| 1219 | * And our mixer. (We should allow support for other mixers, maybe.) |
| 1220 | */ |
| 1221 | |
| 1222 | nm256_install_mixer (card); |
| 1223 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1224 | return 1; |
| 1225 | } |
| 1226 | |
| 1227 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1228 | static int __devinit |
| 1229 | nm256_probe(struct pci_dev *pcidev,const struct pci_device_id *pciid) |
| 1230 | { |
| 1231 | if (pcidev->device == PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO) |
| 1232 | return nm256_install(pcidev, REV_NM256AV, "256AV"); |
| 1233 | if (pcidev->device == PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO) |
| 1234 | return nm256_install(pcidev, REV_NM256ZX, "256ZX"); |
| 1235 | if (pcidev->device == PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO) |
| 1236 | return nm256_install(pcidev, REV_NM256ZX, "256XL+"); |
| 1237 | return -1; /* should not come here ... */ |
| 1238 | } |
| 1239 | |
| 1240 | static void __devinit |
| 1241 | nm256_remove(struct pci_dev *pcidev) { |
| 1242 | struct nm256_info *xcard = pci_get_drvdata(pcidev); |
| 1243 | struct nm256_info *card,*next_card = NULL; |
| 1244 | |
| 1245 | for (card = nmcard_list; card != NULL; card = next_card) { |
| 1246 | next_card = card->next_card; |
| 1247 | if (card == xcard) { |
| 1248 | stopPlay (card); |
| 1249 | stopRecord (card); |
| 1250 | if (card->has_irq) |
| 1251 | free_irq (card->irq, card); |
| 1252 | nm256_release_ports (card); |
| 1253 | sound_unload_mixerdev (card->mixer_oss_dev); |
| 1254 | sound_unload_audiodev (card->dev[0]); |
| 1255 | sound_unload_audiodev (card->dev[1]); |
| 1256 | kfree (card); |
| 1257 | break; |
| 1258 | } |
| 1259 | } |
| 1260 | if (nmcard_list == card) |
| 1261 | nmcard_list = next_card; |
| 1262 | } |
| 1263 | |
| 1264 | /* |
| 1265 | * Open the device |
| 1266 | * |
| 1267 | * DEV - device |
| 1268 | * MODE - mode to open device (logical OR of OPEN_READ and OPEN_WRITE) |
| 1269 | * |
| 1270 | * Called when opening the DMAbuf (dmabuf.c:259) |
| 1271 | */ |
| 1272 | static int |
| 1273 | nm256_audio_open(int dev, int mode) |
| 1274 | { |
| 1275 | struct nm256_info *card = nm256_find_card (dev); |
| 1276 | int w; |
| 1277 | |
| 1278 | if (card == NULL) |
| 1279 | return -ENODEV; |
| 1280 | |
| 1281 | if (card->dev[0] == dev) |
| 1282 | w = 0; |
| 1283 | else if (card->dev[1] == dev) |
| 1284 | w = 1; |
| 1285 | else |
| 1286 | return -ENODEV; |
| 1287 | |
| 1288 | if (card->opencnt[w] > 0) |
| 1289 | return -EBUSY; |
| 1290 | |
| 1291 | /* No bits set? Huh? */ |
| 1292 | if (! ((mode & OPEN_READ) || (mode & OPEN_WRITE))) |
| 1293 | return -EIO; |
| 1294 | |
| 1295 | /* |
| 1296 | * If it's open for both read and write, and the card's currently |
| 1297 | * being read or written to, then do the opposite of what has |
| 1298 | * already been done. Otherwise, don't specify any mode until the |
| 1299 | * user actually tries to do I/O. (Some programs open the device |
| 1300 | * for both read and write, but only actually do reading or writing.) |
| 1301 | */ |
| 1302 | |
| 1303 | if ((mode & OPEN_WRITE) && (mode & OPEN_READ)) { |
| 1304 | if (card->is_open_play) |
| 1305 | mode = OPEN_WRITE; |
| 1306 | else if (card->is_open_record) |
| 1307 | mode = OPEN_READ; |
| 1308 | else mode = 0; |
| 1309 | } |
| 1310 | |
| 1311 | if (mode & OPEN_WRITE) { |
| 1312 | if (card->is_open_play == 0) { |
| 1313 | card->dev_for_play = dev; |
| 1314 | card->is_open_play = 1; |
| 1315 | } |
| 1316 | else |
| 1317 | return -EBUSY; |
| 1318 | } |
| 1319 | |
| 1320 | if (mode & OPEN_READ) { |
| 1321 | if (card->is_open_record == 0) { |
| 1322 | card->dev_for_record = dev; |
| 1323 | card->is_open_record = 1; |
| 1324 | } |
| 1325 | else |
| 1326 | return -EBUSY; |
| 1327 | } |
| 1328 | |
| 1329 | card->opencnt[w]++; |
| 1330 | return 0; |
| 1331 | } |
| 1332 | |
| 1333 | /* |
| 1334 | * Close the device |
| 1335 | * |
| 1336 | * DEV - device |
| 1337 | * |
| 1338 | * Called when closing the DMAbuf (dmabuf.c:477) |
| 1339 | * after halt_xfer |
| 1340 | */ |
| 1341 | static void |
| 1342 | nm256_audio_close(int dev) |
| 1343 | { |
| 1344 | struct nm256_info *card = nm256_find_card (dev); |
| 1345 | |
| 1346 | if (card != NULL) { |
| 1347 | int w; |
| 1348 | |
| 1349 | if (card->dev[0] == dev) |
| 1350 | w = 0; |
| 1351 | else if (card->dev[1] == dev) |
| 1352 | w = 1; |
| 1353 | else |
| 1354 | return; |
| 1355 | |
| 1356 | card->opencnt[w]--; |
| 1357 | if (card->opencnt[w] <= 0) { |
| 1358 | card->opencnt[w] = 0; |
| 1359 | |
| 1360 | if (card->dev_for_play == dev) { |
| 1361 | stopPlay (card); |
| 1362 | card->is_open_play = 0; |
| 1363 | card->dev_for_play = -1; |
| 1364 | } |
| 1365 | |
| 1366 | if (card->dev_for_record == dev) { |
| 1367 | stopRecord (card); |
| 1368 | card->is_open_record = 0; |
| 1369 | card->dev_for_record = -1; |
| 1370 | } |
| 1371 | } |
| 1372 | } |
| 1373 | } |
| 1374 | |
| 1375 | /* Standard ioctl handler. */ |
| 1376 | static int |
| 1377 | nm256_audio_ioctl(int dev, unsigned int cmd, void __user *arg) |
| 1378 | { |
| 1379 | int ret; |
| 1380 | u32 oldinfo; |
| 1381 | int w; |
| 1382 | |
| 1383 | struct nm256_info *card = nm256_find_card (dev); |
| 1384 | |
| 1385 | if (card == NULL) |
| 1386 | return -ENODEV; |
| 1387 | |
| 1388 | if (dev == card->dev[0]) |
| 1389 | w = 0; |
| 1390 | else |
| 1391 | w = 1; |
| 1392 | |
| 1393 | /* |
| 1394 | * The code here is messy. There are probably better ways to do |
| 1395 | * it. (It should be possible to handle it the same way the AC97 mixer |
| 1396 | * is done.) |
| 1397 | */ |
| 1398 | switch (cmd) |
| 1399 | { |
| 1400 | case SOUND_PCM_WRITE_RATE: |
| 1401 | if (get_user(ret, (int __user *) arg)) |
| 1402 | return -EFAULT; |
| 1403 | |
| 1404 | if (ret != 0) { |
| 1405 | oldinfo = card->sinfo[w].samplerate; |
| 1406 | card->sinfo[w].samplerate = ret; |
| 1407 | ret = nm256_setInfo(dev, card); |
| 1408 | if (ret != 0) |
| 1409 | card->sinfo[w].samplerate = oldinfo; |
| 1410 | } |
| 1411 | if (ret == 0) |
| 1412 | ret = card->sinfo[w].samplerate; |
| 1413 | break; |
| 1414 | |
| 1415 | case SOUND_PCM_READ_RATE: |
| 1416 | ret = card->sinfo[w].samplerate; |
| 1417 | break; |
| 1418 | |
| 1419 | case SNDCTL_DSP_STEREO: |
| 1420 | if (get_user(ret, (int __user *) arg)) |
| 1421 | return -EFAULT; |
| 1422 | |
| 1423 | card->sinfo[w].stereo = ret ? 1 : 0; |
| 1424 | ret = nm256_setInfo (dev, card); |
| 1425 | if (ret == 0) |
| 1426 | ret = card->sinfo[w].stereo; |
| 1427 | |
| 1428 | break; |
| 1429 | |
| 1430 | case SOUND_PCM_WRITE_CHANNELS: |
| 1431 | if (get_user(ret, (int __user *) arg)) |
| 1432 | return -EFAULT; |
| 1433 | |
| 1434 | if (ret < 1 || ret > 3) |
| 1435 | ret = card->sinfo[w].stereo + 1; |
| 1436 | else { |
| 1437 | card->sinfo[w].stereo = ret - 1; |
| 1438 | ret = nm256_setInfo (dev, card); |
| 1439 | if (ret == 0) |
| 1440 | ret = card->sinfo[w].stereo + 1; |
| 1441 | } |
| 1442 | break; |
| 1443 | |
| 1444 | case SOUND_PCM_READ_CHANNELS: |
| 1445 | ret = card->sinfo[w].stereo + 1; |
| 1446 | break; |
| 1447 | |
| 1448 | case SNDCTL_DSP_SETFMT: |
| 1449 | if (get_user(ret, (int __user *) arg)) |
| 1450 | return -EFAULT; |
| 1451 | |
| 1452 | if (ret != 0) { |
| 1453 | oldinfo = card->sinfo[w].bits; |
| 1454 | card->sinfo[w].bits = ret; |
| 1455 | ret = nm256_setInfo (dev, card); |
| 1456 | if (ret != 0) |
| 1457 | card->sinfo[w].bits = oldinfo; |
| 1458 | } |
| 1459 | if (ret == 0) |
| 1460 | ret = card->sinfo[w].bits; |
| 1461 | break; |
| 1462 | |
| 1463 | case SOUND_PCM_READ_BITS: |
| 1464 | ret = card->sinfo[w].bits; |
| 1465 | break; |
| 1466 | |
| 1467 | default: |
| 1468 | return -EINVAL; |
| 1469 | } |
| 1470 | return put_user(ret, (int __user *) arg); |
| 1471 | } |
| 1472 | |
| 1473 | /* |
| 1474 | * Given the sound device DEV and an associated physical buffer PHYSBUF, |
| 1475 | * return a pointer to the actual buffer in kernel space. |
| 1476 | * |
| 1477 | * This routine should exist as part of the soundcore routines. |
| 1478 | */ |
| 1479 | |
| 1480 | static char * |
| 1481 | nm256_getDMAbuffer (int dev, unsigned long physbuf) |
| 1482 | { |
| 1483 | struct audio_operations *adev = audio_devs[dev]; |
| 1484 | struct dma_buffparms *dmap = adev->dmap_out; |
| 1485 | char *dma_start = |
| 1486 | (char *)(physbuf - (unsigned long)dmap->raw_buf_phys |
| 1487 | + (unsigned long)dmap->raw_buf); |
| 1488 | |
| 1489 | return dma_start; |
| 1490 | } |
| 1491 | |
| 1492 | |
| 1493 | /* |
| 1494 | * Output a block to sound device |
| 1495 | * |
| 1496 | * dev - device number |
| 1497 | * buf - physical address of buffer |
| 1498 | * total_count - total byte count in buffer |
| 1499 | * intrflag - set if this has been called from an interrupt |
| 1500 | * (via DMAbuf_outputintr) |
| 1501 | * restart_dma - set if engine needs to be re-initialised |
| 1502 | * |
| 1503 | * Called when: |
| 1504 | * 1. Starting output (dmabuf.c:1327) |
| 1505 | * 2. (dmabuf.c:1504) |
| 1506 | * 3. A new buffer needs to be sent to the device (dmabuf.c:1579) |
| 1507 | */ |
| 1508 | static void |
| 1509 | nm256_audio_output_block(int dev, unsigned long physbuf, |
| 1510 | int total_count, int intrflag) |
| 1511 | { |
| 1512 | struct nm256_info *card = nm256_find_card (dev); |
| 1513 | |
| 1514 | if (card != NULL) { |
| 1515 | char *dma_buf = nm256_getDMAbuffer (dev, physbuf); |
| 1516 | card->is_open_play = 1; |
| 1517 | card->dev_for_play = dev; |
| 1518 | nm256_write_block (card, dma_buf, total_count); |
| 1519 | } |
| 1520 | } |
| 1521 | |
| 1522 | /* Ditto, but do recording instead. */ |
| 1523 | static void |
| 1524 | nm256_audio_start_input(int dev, unsigned long physbuf, int count, |
| 1525 | int intrflag) |
| 1526 | { |
| 1527 | struct nm256_info *card = nm256_find_card (dev); |
| 1528 | |
| 1529 | if (card != NULL) { |
| 1530 | char *dma_buf = nm256_getDMAbuffer (dev, physbuf); |
| 1531 | card->is_open_record = 1; |
| 1532 | card->dev_for_record = dev; |
| 1533 | nm256_startRecording (card, dma_buf, count); |
| 1534 | } |
| 1535 | } |
| 1536 | |
| 1537 | /* |
| 1538 | * Prepare for inputting samples to DEV. |
| 1539 | * Each requested buffer will be BSIZE byes long, with a total of |
| 1540 | * BCOUNT buffers. |
| 1541 | */ |
| 1542 | |
| 1543 | static int |
| 1544 | nm256_audio_prepare_for_input(int dev, int bsize, int bcount) |
| 1545 | { |
| 1546 | struct nm256_info *card = nm256_find_card (dev); |
| 1547 | |
| 1548 | if (card == NULL) |
| 1549 | return -ENODEV; |
| 1550 | |
| 1551 | if (card->is_open_record && card->dev_for_record != dev) |
| 1552 | return -EBUSY; |
| 1553 | |
| 1554 | audio_devs[dev]->dmap_in->flags |= DMA_NODMA; |
| 1555 | return 0; |
| 1556 | } |
| 1557 | |
| 1558 | /* |
| 1559 | * Prepare for outputting samples to `dev' |
| 1560 | * |
| 1561 | * Each buffer that will be passed will be `bsize' bytes long, |
| 1562 | * with a total of `bcount' buffers. |
| 1563 | * |
| 1564 | * Called when: |
| 1565 | * 1. A trigger enables audio output (dmabuf.c:978) |
| 1566 | * 2. We get a write buffer without dma_mode setup (dmabuf.c:1152) |
| 1567 | * 3. We restart a transfer (dmabuf.c:1324) |
| 1568 | */ |
| 1569 | |
| 1570 | static int |
| 1571 | nm256_audio_prepare_for_output(int dev, int bsize, int bcount) |
| 1572 | { |
| 1573 | struct nm256_info *card = nm256_find_card (dev); |
| 1574 | |
| 1575 | if (card == NULL) |
| 1576 | return -ENODEV; |
| 1577 | |
| 1578 | if (card->is_open_play && card->dev_for_play != dev) |
| 1579 | return -EBUSY; |
| 1580 | |
| 1581 | audio_devs[dev]->dmap_out->flags |= DMA_NODMA; |
| 1582 | return 0; |
| 1583 | } |
| 1584 | |
| 1585 | /* Stop the current operations associated with DEV. */ |
| 1586 | static void |
| 1587 | nm256_audio_reset(int dev) |
| 1588 | { |
| 1589 | struct nm256_info *card = nm256_find_card (dev); |
| 1590 | |
| 1591 | if (card != NULL) { |
| 1592 | if (card->dev_for_play == dev) |
| 1593 | stopPlay (card); |
| 1594 | if (card->dev_for_record == dev) |
| 1595 | stopRecord (card); |
| 1596 | } |
| 1597 | } |
| 1598 | |
| 1599 | static int |
| 1600 | nm256_audio_local_qlen(int dev) |
| 1601 | { |
| 1602 | return 0; |
| 1603 | } |
| 1604 | |
| 1605 | static struct audio_driver nm256_audio_driver = |
| 1606 | { |
| 1607 | .owner = THIS_MODULE, |
| 1608 | .open = nm256_audio_open, |
| 1609 | .close = nm256_audio_close, |
| 1610 | .output_block = nm256_audio_output_block, |
| 1611 | .start_input = nm256_audio_start_input, |
| 1612 | .ioctl = nm256_audio_ioctl, |
| 1613 | .prepare_for_input = nm256_audio_prepare_for_input, |
| 1614 | .prepare_for_output = nm256_audio_prepare_for_output, |
| 1615 | .halt_io = nm256_audio_reset, |
| 1616 | .local_qlen = nm256_audio_local_qlen, |
| 1617 | }; |
| 1618 | |
| 1619 | static struct pci_device_id nm256_pci_tbl[] = { |
| 1620 | {PCI_VENDOR_ID_NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256AV_AUDIO, |
| 1621 | PCI_ANY_ID, PCI_ANY_ID, 0, 0}, |
| 1622 | {PCI_VENDOR_ID_NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256ZX_AUDIO, |
| 1623 | PCI_ANY_ID, PCI_ANY_ID, 0, 0}, |
| 1624 | {PCI_VENDOR_ID_NEOMAGIC, PCI_DEVICE_ID_NEOMAGIC_NM256XL_PLUS_AUDIO, |
| 1625 | PCI_ANY_ID, PCI_ANY_ID, 0, 0}, |
| 1626 | {0,} |
| 1627 | }; |
| 1628 | MODULE_DEVICE_TABLE(pci, nm256_pci_tbl); |
| 1629 | MODULE_LICENSE("GPL"); |
| 1630 | |
| 1631 | |
| 1632 | static struct pci_driver nm256_pci_driver = { |
| 1633 | .name = "nm256_audio", |
| 1634 | .id_table = nm256_pci_tbl, |
| 1635 | .probe = nm256_probe, |
| 1636 | .remove = nm256_remove, |
| 1637 | }; |
| 1638 | |
| 1639 | module_param(usecache, bool, 0); |
| 1640 | module_param(buffertop, int, 0); |
| 1641 | module_param(nm256_debug, bool, 0644); |
| 1642 | module_param(force_load, bool, 0); |
| 1643 | |
| 1644 | static int __init do_init_nm256(void) |
| 1645 | { |
| 1646 | printk (KERN_INFO "NeoMagic 256AV/256ZX audio driver, version 1.1p\n"); |
Greg Kroah-Hartman | 4665472 | 2005-12-06 15:33:15 -0800 | [diff] [blame] | 1647 | return pci_register_driver(&nm256_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1648 | } |
| 1649 | |
| 1650 | static void __exit cleanup_nm256 (void) |
| 1651 | { |
| 1652 | pci_unregister_driver(&nm256_pci_driver); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1653 | } |
| 1654 | |
| 1655 | module_init(do_init_nm256); |
| 1656 | module_exit(cleanup_nm256); |
| 1657 | |
| 1658 | /* |
| 1659 | * Local variables: |
| 1660 | * c-basic-offset: 4 |
| 1661 | * End: |
| 1662 | */ |