1 /* 2 * Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com> 3 * Driver EMU10K1X chips 4 * 5 * Parts of this code were adapted from audigyls.c driver which is 6 * Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk> 7 * 8 * BUGS: 9 * -- 10 * 11 * TODO: 12 * 13 * Chips (SB0200 model): 14 * - EMU10K1X-DBQ 15 * - STAC 9708T 16 * 17 * This program is free software; you can redistribute it and/or modify 18 * it under the terms of the GNU General Public License as published by 19 * the Free Software Foundation; either version 2 of the License, or 20 * (at your option) any later version. 21 * 22 * This program is distributed in the hope that it will be useful, 23 * but WITHOUT ANY WARRANTY; without even the implied warranty of 24 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 25 * GNU General Public License for more details. 26 * 27 * You should have received a copy of the GNU General Public License 28 * along with this program; if not, write to the Free Software 29 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 30 * 31 */ 32 #include <sound/driver.h> 33 #include <linux/init.h> 34 #include <linux/interrupt.h> 35 #include <linux/pci.h> 36 #include <linux/dma-mapping.h> 37 #include <linux/slab.h> 38 #include <linux/moduleparam.h> 39 #include <sound/core.h> 40 #include <sound/initval.h> 41 #include <sound/pcm.h> 42 #include <sound/ac97_codec.h> 43 #include <sound/info.h> 44 #include <sound/rawmidi.h> 45 46 MODULE_AUTHOR("Francisco Moraes <fmoraes@nc.rr.com>"); 47 MODULE_DESCRIPTION("EMU10K1X"); 48 MODULE_LICENSE("GPL"); 49 MODULE_SUPPORTED_DEVICE("{{Dell Creative Labs,SB Live!}"); 50 51 // module parameters (see "Module Parameters") 52 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 53 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 54 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 55 56 module_param_array(index, int, NULL, 0444); 57 MODULE_PARM_DESC(index, "Index value for the EMU10K1X soundcard."); 58 module_param_array(id, charp, NULL, 0444); 59 MODULE_PARM_DESC(id, "ID string for the EMU10K1X soundcard."); 60 module_param_array(enable, bool, NULL, 0444); 61 MODULE_PARM_DESC(enable, "Enable the EMU10K1X soundcard."); 62 63 64 // some definitions were borrowed from emu10k1 driver as they seem to be the same 65 /************************************************************************************************/ 66 /* PCI function 0 registers, address = <val> + PCIBASE0 */ 67 /************************************************************************************************/ 68 69 #define PTR 0x00 /* Indexed register set pointer register */ 70 /* NOTE: The CHANNELNUM and ADDRESS words can */ 71 /* be modified independently of each other. */ 72 73 #define DATA 0x04 /* Indexed register set data register */ 74 75 #define IPR 0x08 /* Global interrupt pending register */ 76 /* Clear pending interrupts by writing a 1 to */ 77 /* the relevant bits and zero to the other bits */ 78 #define IPR_MIDITRANSBUFEMPTY 0x00000001 /* MIDI UART transmit buffer empty */ 79 #define IPR_MIDIRECVBUFEMPTY 0x00000002 /* MIDI UART receive buffer empty */ 80 #define IPR_CH_0_LOOP 0x00000800 /* Channel 0 loop */ 81 #define IPR_CH_0_HALF_LOOP 0x00000100 /* Channel 0 half loop */ 82 #define IPR_CAP_0_LOOP 0x00080000 /* Channel capture loop */ 83 #define IPR_CAP_0_HALF_LOOP 0x00010000 /* Channel capture half loop */ 84 85 #define INTE 0x0c /* Interrupt enable register */ 86 #define INTE_MIDITXENABLE 0x00000001 /* Enable MIDI transmit-buffer-empty interrupts */ 87 #define INTE_MIDIRXENABLE 0x00000002 /* Enable MIDI receive-buffer-empty interrupts */ 88 #define INTE_CH_0_LOOP 0x00000800 /* Channel 0 loop */ 89 #define INTE_CH_0_HALF_LOOP 0x00000100 /* Channel 0 half loop */ 90 #define INTE_CAP_0_LOOP 0x00080000 /* Channel capture loop */ 91 #define INTE_CAP_0_HALF_LOOP 0x00010000 /* Channel capture half loop */ 92 93 #define HCFG 0x14 /* Hardware config register */ 94 95 #define HCFG_LOCKSOUNDCACHE 0x00000008 /* 1 = Cancel bustmaster accesses to soundcache */ 96 /* NOTE: This should generally never be used. */ 97 #define HCFG_AUDIOENABLE 0x00000001 /* 0 = CODECs transmit zero-valued samples */ 98 /* Should be set to 1 when the EMU10K1 is */ 99 /* completely initialized. */ 100 #define GPIO 0x18 /* Defaults: 00001080-Analog, 00001000-SPDIF. */ 101 102 103 #define AC97DATA 0x1c /* AC97 register set data register (16 bit) */ 104 105 #define AC97ADDRESS 0x1e /* AC97 register set address register (8 bit) */ 106 107 /********************************************************************************************************/ 108 /* Emu10k1x pointer-offset register set, accessed through the PTR and DATA registers */ 109 /********************************************************************************************************/ 110 #define PLAYBACK_LIST_ADDR 0x00 /* Base DMA address of a list of pointers to each period/size */ 111 /* One list entry: 4 bytes for DMA address, 112 * 4 bytes for period_size << 16. 113 * One list entry is 8 bytes long. 114 * One list entry for each period in the buffer. 115 */ 116 #define PLAYBACK_LIST_SIZE 0x01 /* Size of list in bytes << 16. E.g. 8 periods -> 0x00380000 */ 117 #define PLAYBACK_LIST_PTR 0x02 /* Pointer to the current period being played */ 118 #define PLAYBACK_DMA_ADDR 0x04 /* Playback DMA addresss */ 119 #define PLAYBACK_PERIOD_SIZE 0x05 /* Playback period size */ 120 #define PLAYBACK_POINTER 0x06 /* Playback period pointer. Sample currently in DAC */ 121 #define PLAYBACK_UNKNOWN1 0x07 122 #define PLAYBACK_UNKNOWN2 0x08 123 124 /* Only one capture channel supported */ 125 #define CAPTURE_DMA_ADDR 0x10 /* Capture DMA address */ 126 #define CAPTURE_BUFFER_SIZE 0x11 /* Capture buffer size */ 127 #define CAPTURE_POINTER 0x12 /* Capture buffer pointer. Sample currently in ADC */ 128 #define CAPTURE_UNKNOWN 0x13 129 130 /* From 0x20 - 0x3f, last samples played on each channel */ 131 132 #define TRIGGER_CHANNEL 0x40 /* Trigger channel playback */ 133 #define TRIGGER_CHANNEL_0 0x00000001 /* Trigger channel 0 */ 134 #define TRIGGER_CHANNEL_1 0x00000002 /* Trigger channel 1 */ 135 #define TRIGGER_CHANNEL_2 0x00000004 /* Trigger channel 2 */ 136 #define TRIGGER_CAPTURE 0x00000100 /* Trigger capture channel */ 137 138 #define ROUTING 0x41 /* Setup sound routing ? */ 139 #define ROUTING_FRONT_LEFT 0x00000001 140 #define ROUTING_FRONT_RIGHT 0x00000002 141 #define ROUTING_REAR_LEFT 0x00000004 142 #define ROUTING_REAR_RIGHT 0x00000008 143 #define ROUTING_CENTER_LFE 0x00010000 144 145 #define SPCS0 0x42 /* SPDIF output Channel Status 0 register */ 146 147 #define SPCS1 0x43 /* SPDIF output Channel Status 1 register */ 148 149 #define SPCS2 0x44 /* SPDIF output Channel Status 2 register */ 150 151 #define SPCS_CLKACCYMASK 0x30000000 /* Clock accuracy */ 152 #define SPCS_CLKACCY_1000PPM 0x00000000 /* 1000 parts per million */ 153 #define SPCS_CLKACCY_50PPM 0x10000000 /* 50 parts per million */ 154 #define SPCS_CLKACCY_VARIABLE 0x20000000 /* Variable accuracy */ 155 #define SPCS_SAMPLERATEMASK 0x0f000000 /* Sample rate */ 156 #define SPCS_SAMPLERATE_44 0x00000000 /* 44.1kHz sample rate */ 157 #define SPCS_SAMPLERATE_48 0x02000000 /* 48kHz sample rate */ 158 #define SPCS_SAMPLERATE_32 0x03000000 /* 32kHz sample rate */ 159 #define SPCS_CHANNELNUMMASK 0x00f00000 /* Channel number */ 160 #define SPCS_CHANNELNUM_UNSPEC 0x00000000 /* Unspecified channel number */ 161 #define SPCS_CHANNELNUM_LEFT 0x00100000 /* Left channel */ 162 #define SPCS_CHANNELNUM_RIGHT 0x00200000 /* Right channel */ 163 #define SPCS_SOURCENUMMASK 0x000f0000 /* Source number */ 164 #define SPCS_SOURCENUM_UNSPEC 0x00000000 /* Unspecified source number */ 165 #define SPCS_GENERATIONSTATUS 0x00008000 /* Originality flag (see IEC-958 spec) */ 166 #define SPCS_CATEGORYCODEMASK 0x00007f00 /* Category code (see IEC-958 spec) */ 167 #define SPCS_MODEMASK 0x000000c0 /* Mode (see IEC-958 spec) */ 168 #define SPCS_EMPHASISMASK 0x00000038 /* Emphasis */ 169 #define SPCS_EMPHASIS_NONE 0x00000000 /* No emphasis */ 170 #define SPCS_EMPHASIS_50_15 0x00000008 /* 50/15 usec 2 channel */ 171 #define SPCS_COPYRIGHT 0x00000004 /* Copyright asserted flag -- do not modify */ 172 #define SPCS_NOTAUDIODATA 0x00000002 /* 0 = Digital audio, 1 = not audio */ 173 #define SPCS_PROFESSIONAL 0x00000001 /* 0 = Consumer (IEC-958), 1 = pro (AES3-1992) */ 174 175 #define SPDIF_SELECT 0x45 /* Enables SPDIF or Analogue outputs 0-Analogue, 0x700-SPDIF */ 176 177 /* This is the MPU port on the card */ 178 #define MUDATA 0x47 179 #define MUCMD 0x48 180 #define MUSTAT MUCMD 181 182 /* From 0x50 - 0x5f, last samples captured */ 183 184 /** 185 * The hardware has 3 channels for playback and 1 for capture. 186 * - channel 0 is the front channel 187 * - channel 1 is the rear channel 188 * - channel 2 is the center/lfe chanel 189 * Volume is controlled by the AC97 for the front and rear channels by 190 * the PCM Playback Volume, Sigmatel Surround Playback Volume and 191 * Surround Playback Volume. The Sigmatel 4-Speaker Stereo switch affects 192 * the front/rear channel mixing in the REAR OUT jack. When using the 193 * 4-Speaker Stereo, both front and rear channels will be mixed in the 194 * REAR OUT. 195 * The center/lfe channel has no volume control and cannot be muted during 196 * playback. 197 */ 198 199 struct emu10k1x_voice { 200 struct emu10k1x *emu; 201 int number; 202 int use; 203 204 struct emu10k1x_pcm *epcm; 205 }; 206 207 struct emu10k1x_pcm { 208 struct emu10k1x *emu; 209 struct snd_pcm_substream *substream; 210 struct emu10k1x_voice *voice; 211 unsigned short running; 212 }; 213 214 struct emu10k1x_midi { 215 struct emu10k1x *emu; 216 struct snd_rawmidi *rmidi; 217 struct snd_rawmidi_substream *substream_input; 218 struct snd_rawmidi_substream *substream_output; 219 unsigned int midi_mode; 220 spinlock_t input_lock; 221 spinlock_t output_lock; 222 spinlock_t open_lock; 223 int tx_enable, rx_enable; 224 int port; 225 int ipr_tx, ipr_rx; 226 void (*interrupt)(struct emu10k1x *emu, unsigned int status); 227 }; 228 229 // definition of the chip-specific record 230 struct emu10k1x { 231 struct snd_card *card; 232 struct pci_dev *pci; 233 234 unsigned long port; 235 struct resource *res_port; 236 int irq; 237 238 unsigned char revision; /* chip revision */ 239 unsigned int serial; /* serial number */ 240 unsigned short model; /* subsystem id */ 241 242 spinlock_t emu_lock; 243 spinlock_t voice_lock; 244 245 struct snd_ac97 *ac97; 246 struct snd_pcm *pcm; 247 248 struct emu10k1x_voice voices[3]; 249 struct emu10k1x_voice capture_voice; 250 u32 spdif_bits[3]; // SPDIF out setup 251 252 struct snd_dma_buffer dma_buffer; 253 254 struct emu10k1x_midi midi; 255 }; 256 257 /* hardware definition */ 258 static struct snd_pcm_hardware snd_emu10k1x_playback_hw = { 259 .info = (SNDRV_PCM_INFO_MMAP | 260 SNDRV_PCM_INFO_INTERLEAVED | 261 SNDRV_PCM_INFO_BLOCK_TRANSFER | 262 SNDRV_PCM_INFO_MMAP_VALID), 263 .formats = SNDRV_PCM_FMTBIT_S16_LE, 264 .rates = SNDRV_PCM_RATE_48000, 265 .rate_min = 48000, 266 .rate_max = 48000, 267 .channels_min = 2, 268 .channels_max = 2, 269 .buffer_bytes_max = (32*1024), 270 .period_bytes_min = 64, 271 .period_bytes_max = (16*1024), 272 .periods_min = 2, 273 .periods_max = 8, 274 .fifo_size = 0, 275 }; 276 277 static struct snd_pcm_hardware snd_emu10k1x_capture_hw = { 278 .info = (SNDRV_PCM_INFO_MMAP | 279 SNDRV_PCM_INFO_INTERLEAVED | 280 SNDRV_PCM_INFO_BLOCK_TRANSFER | 281 SNDRV_PCM_INFO_MMAP_VALID), 282 .formats = SNDRV_PCM_FMTBIT_S16_LE, 283 .rates = SNDRV_PCM_RATE_48000, 284 .rate_min = 48000, 285 .rate_max = 48000, 286 .channels_min = 2, 287 .channels_max = 2, 288 .buffer_bytes_max = (32*1024), 289 .period_bytes_min = 64, 290 .period_bytes_max = (16*1024), 291 .periods_min = 2, 292 .periods_max = 2, 293 .fifo_size = 0, 294 }; 295 296 static unsigned int snd_emu10k1x_ptr_read(struct emu10k1x * emu, 297 unsigned int reg, 298 unsigned int chn) 299 { 300 unsigned long flags; 301 unsigned int regptr, val; 302 303 regptr = (reg << 16) | chn; 304 305 spin_lock_irqsave(&emu->emu_lock, flags); 306 outl(regptr, emu->port + PTR); 307 val = inl(emu->port + DATA); 308 spin_unlock_irqrestore(&emu->emu_lock, flags); 309 return val; 310 } 311 312 static void snd_emu10k1x_ptr_write(struct emu10k1x *emu, 313 unsigned int reg, 314 unsigned int chn, 315 unsigned int data) 316 { 317 unsigned int regptr; 318 unsigned long flags; 319 320 regptr = (reg << 16) | chn; 321 322 spin_lock_irqsave(&emu->emu_lock, flags); 323 outl(regptr, emu->port + PTR); 324 outl(data, emu->port + DATA); 325 spin_unlock_irqrestore(&emu->emu_lock, flags); 326 } 327 328 static void snd_emu10k1x_intr_enable(struct emu10k1x *emu, unsigned int intrenb) 329 { 330 unsigned long flags; 331 unsigned int enable; 332 333 spin_lock_irqsave(&emu->emu_lock, flags); 334 enable = inl(emu->port + INTE) | intrenb; 335 outl(enable, emu->port + INTE); 336 spin_unlock_irqrestore(&emu->emu_lock, flags); 337 } 338 339 static void snd_emu10k1x_intr_disable(struct emu10k1x *emu, unsigned int intrenb) 340 { 341 unsigned long flags; 342 unsigned int enable; 343 344 spin_lock_irqsave(&emu->emu_lock, flags); 345 enable = inl(emu->port + INTE) & ~intrenb; 346 outl(enable, emu->port + INTE); 347 spin_unlock_irqrestore(&emu->emu_lock, flags); 348 } 349 350 static void snd_emu10k1x_gpio_write(struct emu10k1x *emu, unsigned int value) 351 { 352 unsigned long flags; 353 354 spin_lock_irqsave(&emu->emu_lock, flags); 355 outl(value, emu->port + GPIO); 356 spin_unlock_irqrestore(&emu->emu_lock, flags); 357 } 358 359 static void snd_emu10k1x_pcm_free_substream(struct snd_pcm_runtime *runtime) 360 { 361 kfree(runtime->private_data); 362 } 363 364 static void snd_emu10k1x_pcm_interrupt(struct emu10k1x *emu, struct emu10k1x_voice *voice) 365 { 366 struct emu10k1x_pcm *epcm; 367 368 if ((epcm = voice->epcm) == NULL) 369 return; 370 if (epcm->substream == NULL) 371 return; 372 #if 0 373 snd_printk(KERN_INFO "IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n", 374 epcm->substream->ops->pointer(epcm->substream), 375 snd_pcm_lib_period_bytes(epcm->substream), 376 snd_pcm_lib_buffer_bytes(epcm->substream)); 377 #endif 378 snd_pcm_period_elapsed(epcm->substream); 379 } 380 381 /* open callback */ 382 static int snd_emu10k1x_playback_open(struct snd_pcm_substream *substream) 383 { 384 struct emu10k1x *chip = snd_pcm_substream_chip(substream); 385 struct emu10k1x_pcm *epcm; 386 struct snd_pcm_runtime *runtime = substream->runtime; 387 int err; 388 389 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) { 390 return err; 391 } 392 if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0) 393 return err; 394 395 epcm = kzalloc(sizeof(*epcm), GFP_KERNEL); 396 if (epcm == NULL) 397 return -ENOMEM; 398 epcm->emu = chip; 399 epcm->substream = substream; 400 401 runtime->private_data = epcm; 402 runtime->private_free = snd_emu10k1x_pcm_free_substream; 403 404 runtime->hw = snd_emu10k1x_playback_hw; 405 406 return 0; 407 } 408 409 /* close callback */ 410 static int snd_emu10k1x_playback_close(struct snd_pcm_substream *substream) 411 { 412 return 0; 413 } 414 415 /* hw_params callback */ 416 static int snd_emu10k1x_pcm_hw_params(struct snd_pcm_substream *substream, 417 struct snd_pcm_hw_params *hw_params) 418 { 419 struct snd_pcm_runtime *runtime = substream->runtime; 420 struct emu10k1x_pcm *epcm = runtime->private_data; 421 422 if (! epcm->voice) { 423 epcm->voice = &epcm->emu->voices[substream->pcm->device]; 424 epcm->voice->use = 1; 425 epcm->voice->epcm = epcm; 426 } 427 428 return snd_pcm_lib_malloc_pages(substream, 429 params_buffer_bytes(hw_params)); 430 } 431 432 /* hw_free callback */ 433 static int snd_emu10k1x_pcm_hw_free(struct snd_pcm_substream *substream) 434 { 435 struct snd_pcm_runtime *runtime = substream->runtime; 436 struct emu10k1x_pcm *epcm; 437 438 if (runtime->private_data == NULL) 439 return 0; 440 441 epcm = runtime->private_data; 442 443 if (epcm->voice) { 444 epcm->voice->use = 0; 445 epcm->voice->epcm = NULL; 446 epcm->voice = NULL; 447 } 448 449 return snd_pcm_lib_free_pages(substream); 450 } 451 452 /* prepare callback */ 453 static int snd_emu10k1x_pcm_prepare(struct snd_pcm_substream *substream) 454 { 455 struct emu10k1x *emu = snd_pcm_substream_chip(substream); 456 struct snd_pcm_runtime *runtime = substream->runtime; 457 struct emu10k1x_pcm *epcm = runtime->private_data; 458 int voice = epcm->voice->number; 459 u32 *table_base = (u32 *)(emu->dma_buffer.area+1024*voice); 460 u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size); 461 int i; 462 463 for(i = 0; i < runtime->periods; i++) { 464 *table_base++=runtime->dma_addr+(i*period_size_bytes); 465 *table_base++=period_size_bytes<<16; 466 } 467 468 snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_ADDR, voice, emu->dma_buffer.addr+1024*voice); 469 snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_SIZE, voice, (runtime->periods - 1) << 19); 470 snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_PTR, voice, 0); 471 snd_emu10k1x_ptr_write(emu, PLAYBACK_POINTER, voice, 0); 472 snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN1, voice, 0); 473 snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN2, voice, 0); 474 snd_emu10k1x_ptr_write(emu, PLAYBACK_DMA_ADDR, voice, runtime->dma_addr); 475 476 snd_emu10k1x_ptr_write(emu, PLAYBACK_PERIOD_SIZE, voice, frames_to_bytes(runtime, runtime->period_size)<<16); 477 478 return 0; 479 } 480 481 /* trigger callback */ 482 static int snd_emu10k1x_pcm_trigger(struct snd_pcm_substream *substream, 483 int cmd) 484 { 485 struct emu10k1x *emu = snd_pcm_substream_chip(substream); 486 struct snd_pcm_runtime *runtime = substream->runtime; 487 struct emu10k1x_pcm *epcm = runtime->private_data; 488 int channel = epcm->voice->number; 489 int result = 0; 490 491 // snd_printk(KERN_INFO "trigger - emu10k1x = 0x%x, cmd = %i, pointer = %d\n", (int)emu, cmd, (int)substream->ops->pointer(substream)); 492 493 switch (cmd) { 494 case SNDRV_PCM_TRIGGER_START: 495 if(runtime->periods == 2) 496 snd_emu10k1x_intr_enable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel); 497 else 498 snd_emu10k1x_intr_enable(emu, INTE_CH_0_LOOP << channel); 499 epcm->running = 1; 500 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|(TRIGGER_CHANNEL_0<<channel)); 501 break; 502 case SNDRV_PCM_TRIGGER_STOP: 503 epcm->running = 0; 504 snd_emu10k1x_intr_disable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel); 505 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CHANNEL_0<<channel)); 506 break; 507 default: 508 result = -EINVAL; 509 break; 510 } 511 return result; 512 } 513 514 /* pointer callback */ 515 static snd_pcm_uframes_t 516 snd_emu10k1x_pcm_pointer(struct snd_pcm_substream *substream) 517 { 518 struct emu10k1x *emu = snd_pcm_substream_chip(substream); 519 struct snd_pcm_runtime *runtime = substream->runtime; 520 struct emu10k1x_pcm *epcm = runtime->private_data; 521 int channel = epcm->voice->number; 522 snd_pcm_uframes_t ptr = 0, ptr1 = 0, ptr2= 0,ptr3 = 0,ptr4 = 0; 523 524 if (!epcm->running) 525 return 0; 526 527 ptr3 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel); 528 ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel); 529 ptr4 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel); 530 531 if(ptr4 == 0 && ptr1 == frames_to_bytes(runtime, runtime->buffer_size)) 532 return 0; 533 534 if (ptr3 != ptr4) 535 ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel); 536 ptr2 = bytes_to_frames(runtime, ptr1); 537 ptr2 += (ptr4 >> 3) * runtime->period_size; 538 ptr = ptr2; 539 540 if (ptr >= runtime->buffer_size) 541 ptr -= runtime->buffer_size; 542 543 return ptr; 544 } 545 546 /* operators */ 547 static struct snd_pcm_ops snd_emu10k1x_playback_ops = { 548 .open = snd_emu10k1x_playback_open, 549 .close = snd_emu10k1x_playback_close, 550 .ioctl = snd_pcm_lib_ioctl, 551 .hw_params = snd_emu10k1x_pcm_hw_params, 552 .hw_free = snd_emu10k1x_pcm_hw_free, 553 .prepare = snd_emu10k1x_pcm_prepare, 554 .trigger = snd_emu10k1x_pcm_trigger, 555 .pointer = snd_emu10k1x_pcm_pointer, 556 }; 557 558 /* open_capture callback */ 559 static int snd_emu10k1x_pcm_open_capture(struct snd_pcm_substream *substream) 560 { 561 struct emu10k1x *chip = snd_pcm_substream_chip(substream); 562 struct emu10k1x_pcm *epcm; 563 struct snd_pcm_runtime *runtime = substream->runtime; 564 int err; 565 566 if ((err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS)) < 0) 567 return err; 568 if ((err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64)) < 0) 569 return err; 570 571 epcm = kzalloc(sizeof(*epcm), GFP_KERNEL); 572 if (epcm == NULL) 573 return -ENOMEM; 574 575 epcm->emu = chip; 576 epcm->substream = substream; 577 578 runtime->private_data = epcm; 579 runtime->private_free = snd_emu10k1x_pcm_free_substream; 580 581 runtime->hw = snd_emu10k1x_capture_hw; 582 583 return 0; 584 } 585 586 /* close callback */ 587 static int snd_emu10k1x_pcm_close_capture(struct snd_pcm_substream *substream) 588 { 589 return 0; 590 } 591 592 /* hw_params callback */ 593 static int snd_emu10k1x_pcm_hw_params_capture(struct snd_pcm_substream *substream, 594 struct snd_pcm_hw_params *hw_params) 595 { 596 struct snd_pcm_runtime *runtime = substream->runtime; 597 struct emu10k1x_pcm *epcm = runtime->private_data; 598 599 if (! epcm->voice) { 600 if (epcm->emu->capture_voice.use) 601 return -EBUSY; 602 epcm->voice = &epcm->emu->capture_voice; 603 epcm->voice->epcm = epcm; 604 epcm->voice->use = 1; 605 } 606 607 return snd_pcm_lib_malloc_pages(substream, 608 params_buffer_bytes(hw_params)); 609 } 610 611 /* hw_free callback */ 612 static int snd_emu10k1x_pcm_hw_free_capture(struct snd_pcm_substream *substream) 613 { 614 struct snd_pcm_runtime *runtime = substream->runtime; 615 616 struct emu10k1x_pcm *epcm; 617 618 if (runtime->private_data == NULL) 619 return 0; 620 epcm = runtime->private_data; 621 622 if (epcm->voice) { 623 epcm->voice->use = 0; 624 epcm->voice->epcm = NULL; 625 epcm->voice = NULL; 626 } 627 628 return snd_pcm_lib_free_pages(substream); 629 } 630 631 /* prepare capture callback */ 632 static int snd_emu10k1x_pcm_prepare_capture(struct snd_pcm_substream *substream) 633 { 634 struct emu10k1x *emu = snd_pcm_substream_chip(substream); 635 struct snd_pcm_runtime *runtime = substream->runtime; 636 637 snd_emu10k1x_ptr_write(emu, CAPTURE_DMA_ADDR, 0, runtime->dma_addr); 638 snd_emu10k1x_ptr_write(emu, CAPTURE_BUFFER_SIZE, 0, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes 639 snd_emu10k1x_ptr_write(emu, CAPTURE_POINTER, 0, 0); 640 snd_emu10k1x_ptr_write(emu, CAPTURE_UNKNOWN, 0, 0); 641 642 return 0; 643 } 644 645 /* trigger_capture callback */ 646 static int snd_emu10k1x_pcm_trigger_capture(struct snd_pcm_substream *substream, 647 int cmd) 648 { 649 struct emu10k1x *emu = snd_pcm_substream_chip(substream); 650 struct snd_pcm_runtime *runtime = substream->runtime; 651 struct emu10k1x_pcm *epcm = runtime->private_data; 652 int result = 0; 653 654 switch (cmd) { 655 case SNDRV_PCM_TRIGGER_START: 656 snd_emu10k1x_intr_enable(emu, INTE_CAP_0_LOOP | 657 INTE_CAP_0_HALF_LOOP); 658 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|TRIGGER_CAPTURE); 659 epcm->running = 1; 660 break; 661 case SNDRV_PCM_TRIGGER_STOP: 662 epcm->running = 0; 663 snd_emu10k1x_intr_disable(emu, INTE_CAP_0_LOOP | 664 INTE_CAP_0_HALF_LOOP); 665 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CAPTURE)); 666 break; 667 default: 668 result = -EINVAL; 669 break; 670 } 671 return result; 672 } 673 674 /* pointer_capture callback */ 675 static snd_pcm_uframes_t 676 snd_emu10k1x_pcm_pointer_capture(struct snd_pcm_substream *substream) 677 { 678 struct emu10k1x *emu = snd_pcm_substream_chip(substream); 679 struct snd_pcm_runtime *runtime = substream->runtime; 680 struct emu10k1x_pcm *epcm = runtime->private_data; 681 snd_pcm_uframes_t ptr; 682 683 if (!epcm->running) 684 return 0; 685 686 ptr = bytes_to_frames(runtime, snd_emu10k1x_ptr_read(emu, CAPTURE_POINTER, 0)); 687 if (ptr >= runtime->buffer_size) 688 ptr -= runtime->buffer_size; 689 690 return ptr; 691 } 692 693 static struct snd_pcm_ops snd_emu10k1x_capture_ops = { 694 .open = snd_emu10k1x_pcm_open_capture, 695 .close = snd_emu10k1x_pcm_close_capture, 696 .ioctl = snd_pcm_lib_ioctl, 697 .hw_params = snd_emu10k1x_pcm_hw_params_capture, 698 .hw_free = snd_emu10k1x_pcm_hw_free_capture, 699 .prepare = snd_emu10k1x_pcm_prepare_capture, 700 .trigger = snd_emu10k1x_pcm_trigger_capture, 701 .pointer = snd_emu10k1x_pcm_pointer_capture, 702 }; 703 704 static unsigned short snd_emu10k1x_ac97_read(struct snd_ac97 *ac97, 705 unsigned short reg) 706 { 707 struct emu10k1x *emu = ac97->private_data; 708 unsigned long flags; 709 unsigned short val; 710 711 spin_lock_irqsave(&emu->emu_lock, flags); 712 outb(reg, emu->port + AC97ADDRESS); 713 val = inw(emu->port + AC97DATA); 714 spin_unlock_irqrestore(&emu->emu_lock, flags); 715 return val; 716 } 717 718 static void snd_emu10k1x_ac97_write(struct snd_ac97 *ac97, 719 unsigned short reg, unsigned short val) 720 { 721 struct emu10k1x *emu = ac97->private_data; 722 unsigned long flags; 723 724 spin_lock_irqsave(&emu->emu_lock, flags); 725 outb(reg, emu->port + AC97ADDRESS); 726 outw(val, emu->port + AC97DATA); 727 spin_unlock_irqrestore(&emu->emu_lock, flags); 728 } 729 730 static int snd_emu10k1x_ac97(struct emu10k1x *chip) 731 { 732 struct snd_ac97_bus *pbus; 733 struct snd_ac97_template ac97; 734 int err; 735 static struct snd_ac97_bus_ops ops = { 736 .write = snd_emu10k1x_ac97_write, 737 .read = snd_emu10k1x_ac97_read, 738 }; 739 740 if ((err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus)) < 0) 741 return err; 742 pbus->no_vra = 1; /* we don't need VRA */ 743 744 memset(&ac97, 0, sizeof(ac97)); 745 ac97.private_data = chip; 746 ac97.scaps = AC97_SCAP_NO_SPDIF; 747 return snd_ac97_mixer(pbus, &ac97, &chip->ac97); 748 } 749 750 static int snd_emu10k1x_free(struct emu10k1x *chip) 751 { 752 snd_emu10k1x_ptr_write(chip, TRIGGER_CHANNEL, 0, 0); 753 // disable interrupts 754 outl(0, chip->port + INTE); 755 // disable audio 756 outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); 757 758 // release the i/o port 759 release_and_free_resource(chip->res_port); 760 761 // release the irq 762 if (chip->irq >= 0) 763 free_irq(chip->irq, chip); 764 765 // release the DMA 766 if (chip->dma_buffer.area) { 767 snd_dma_free_pages(&chip->dma_buffer); 768 } 769 770 pci_disable_device(chip->pci); 771 772 // release the data 773 kfree(chip); 774 return 0; 775 } 776 777 static int snd_emu10k1x_dev_free(struct snd_device *device) 778 { 779 struct emu10k1x *chip = device->device_data; 780 return snd_emu10k1x_free(chip); 781 } 782 783 static irqreturn_t snd_emu10k1x_interrupt(int irq, void *dev_id) 784 { 785 unsigned int status; 786 787 struct emu10k1x *chip = dev_id; 788 struct emu10k1x_voice *pvoice = chip->voices; 789 int i; 790 int mask; 791 792 status = inl(chip->port + IPR); 793 794 if (! status) 795 return IRQ_NONE; 796 797 // capture interrupt 798 if (status & (IPR_CAP_0_LOOP | IPR_CAP_0_HALF_LOOP)) { 799 struct emu10k1x_voice *pvoice = &chip->capture_voice; 800 if (pvoice->use) 801 snd_emu10k1x_pcm_interrupt(chip, pvoice); 802 else 803 snd_emu10k1x_intr_disable(chip, 804 INTE_CAP_0_LOOP | 805 INTE_CAP_0_HALF_LOOP); 806 } 807 808 mask = IPR_CH_0_LOOP|IPR_CH_0_HALF_LOOP; 809 for (i = 0; i < 3; i++) { 810 if (status & mask) { 811 if (pvoice->use) 812 snd_emu10k1x_pcm_interrupt(chip, pvoice); 813 else 814 snd_emu10k1x_intr_disable(chip, mask); 815 } 816 pvoice++; 817 mask <<= 1; 818 } 819 820 if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) { 821 if (chip->midi.interrupt) 822 chip->midi.interrupt(chip, status); 823 else 824 snd_emu10k1x_intr_disable(chip, INTE_MIDITXENABLE|INTE_MIDIRXENABLE); 825 } 826 827 // acknowledge the interrupt if necessary 828 outl(status, chip->port + IPR); 829 830 // snd_printk(KERN_INFO "interrupt %08x\n", status); 831 return IRQ_HANDLED; 832 } 833 834 static int __devinit snd_emu10k1x_pcm(struct emu10k1x *emu, int device, struct snd_pcm **rpcm) 835 { 836 struct snd_pcm *pcm; 837 int err; 838 int capture = 0; 839 840 if (rpcm) 841 *rpcm = NULL; 842 if (device == 0) 843 capture = 1; 844 845 if ((err = snd_pcm_new(emu->card, "emu10k1x", device, 1, capture, &pcm)) < 0) 846 return err; 847 848 pcm->private_data = emu; 849 850 switch(device) { 851 case 0: 852 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops); 853 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1x_capture_ops); 854 break; 855 case 1: 856 case 2: 857 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops); 858 break; 859 } 860 861 pcm->info_flags = 0; 862 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX; 863 switch(device) { 864 case 0: 865 strcpy(pcm->name, "EMU10K1X Front"); 866 break; 867 case 1: 868 strcpy(pcm->name, "EMU10K1X Rear"); 869 break; 870 case 2: 871 strcpy(pcm->name, "EMU10K1X Center/LFE"); 872 break; 873 } 874 emu->pcm = pcm; 875 876 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 877 snd_dma_pci_data(emu->pci), 878 32*1024, 32*1024); 879 880 if (rpcm) 881 *rpcm = pcm; 882 883 return 0; 884 } 885 886 static int __devinit snd_emu10k1x_create(struct snd_card *card, 887 struct pci_dev *pci, 888 struct emu10k1x **rchip) 889 { 890 struct emu10k1x *chip; 891 int err; 892 int ch; 893 static struct snd_device_ops ops = { 894 .dev_free = snd_emu10k1x_dev_free, 895 }; 896 897 *rchip = NULL; 898 899 if ((err = pci_enable_device(pci)) < 0) 900 return err; 901 if (pci_set_dma_mask(pci, DMA_28BIT_MASK) < 0 || 902 pci_set_consistent_dma_mask(pci, DMA_28BIT_MASK) < 0) { 903 snd_printk(KERN_ERR "error to set 28bit mask DMA\n"); 904 pci_disable_device(pci); 905 return -ENXIO; 906 } 907 908 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 909 if (chip == NULL) { 910 pci_disable_device(pci); 911 return -ENOMEM; 912 } 913 914 chip->card = card; 915 chip->pci = pci; 916 chip->irq = -1; 917 918 spin_lock_init(&chip->emu_lock); 919 spin_lock_init(&chip->voice_lock); 920 921 chip->port = pci_resource_start(pci, 0); 922 if ((chip->res_port = request_region(chip->port, 8, 923 "EMU10K1X")) == NULL) { 924 snd_printk(KERN_ERR "emu10k1x: cannot allocate the port 0x%lx\n", chip->port); 925 snd_emu10k1x_free(chip); 926 return -EBUSY; 927 } 928 929 if (request_irq(pci->irq, snd_emu10k1x_interrupt, 930 IRQF_SHARED, "EMU10K1X", chip)) { 931 snd_printk(KERN_ERR "emu10k1x: cannot grab irq %d\n", pci->irq); 932 snd_emu10k1x_free(chip); 933 return -EBUSY; 934 } 935 chip->irq = pci->irq; 936 937 if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), 938 4 * 1024, &chip->dma_buffer) < 0) { 939 snd_emu10k1x_free(chip); 940 return -ENOMEM; 941 } 942 943 pci_set_master(pci); 944 /* read revision & serial */ 945 chip->revision = pci->revision; 946 pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial); 947 pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model); 948 snd_printk(KERN_INFO "Model %04x Rev %08x Serial %08x\n", chip->model, 949 chip->revision, chip->serial); 950 951 outl(0, chip->port + INTE); 952 953 for(ch = 0; ch < 3; ch++) { 954 chip->voices[ch].emu = chip; 955 chip->voices[ch].number = ch; 956 } 957 958 /* 959 * Init to 0x02109204 : 960 * Clock accuracy = 0 (1000ppm) 961 * Sample Rate = 2 (48kHz) 962 * Audio Channel = 1 (Left of 2) 963 * Source Number = 0 (Unspecified) 964 * Generation Status = 1 (Original for Cat Code 12) 965 * Cat Code = 12 (Digital Signal Mixer) 966 * Mode = 0 (Mode 0) 967 * Emphasis = 0 (None) 968 * CP = 1 (Copyright unasserted) 969 * AN = 0 (Audio data) 970 * P = 0 (Consumer) 971 */ 972 snd_emu10k1x_ptr_write(chip, SPCS0, 0, 973 chip->spdif_bits[0] = 974 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 | 975 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | 976 SPCS_GENERATIONSTATUS | 0x00001200 | 977 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT); 978 snd_emu10k1x_ptr_write(chip, SPCS1, 0, 979 chip->spdif_bits[1] = 980 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 | 981 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | 982 SPCS_GENERATIONSTATUS | 0x00001200 | 983 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT); 984 snd_emu10k1x_ptr_write(chip, SPCS2, 0, 985 chip->spdif_bits[2] = 986 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 | 987 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | 988 SPCS_GENERATIONSTATUS | 0x00001200 | 989 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT); 990 991 snd_emu10k1x_ptr_write(chip, SPDIF_SELECT, 0, 0x700); // disable SPDIF 992 snd_emu10k1x_ptr_write(chip, ROUTING, 0, 0x1003F); // routing 993 snd_emu10k1x_gpio_write(chip, 0x1080); // analog mode 994 995 outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); 996 997 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, 998 chip, &ops)) < 0) { 999 snd_emu10k1x_free(chip); 1000 return err; 1001 } 1002 *rchip = chip; 1003 return 0; 1004 } 1005 1006 static void snd_emu10k1x_proc_reg_read(struct snd_info_entry *entry, 1007 struct snd_info_buffer *buffer) 1008 { 1009 struct emu10k1x *emu = entry->private_data; 1010 unsigned long value,value1,value2; 1011 unsigned long flags; 1012 int i; 1013 1014 snd_iprintf(buffer, "Registers:\n\n"); 1015 for(i = 0; i < 0x20; i+=4) { 1016 spin_lock_irqsave(&emu->emu_lock, flags); 1017 value = inl(emu->port + i); 1018 spin_unlock_irqrestore(&emu->emu_lock, flags); 1019 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value); 1020 } 1021 snd_iprintf(buffer, "\nRegisters\n\n"); 1022 for(i = 0; i <= 0x48; i++) { 1023 value = snd_emu10k1x_ptr_read(emu, i, 0); 1024 if(i < 0x10 || (i >= 0x20 && i < 0x40)) { 1025 value1 = snd_emu10k1x_ptr_read(emu, i, 1); 1026 value2 = snd_emu10k1x_ptr_read(emu, i, 2); 1027 snd_iprintf(buffer, "%02X: %08lX %08lX %08lX\n", i, value, value1, value2); 1028 } else { 1029 snd_iprintf(buffer, "%02X: %08lX\n", i, value); 1030 } 1031 } 1032 } 1033 1034 static void snd_emu10k1x_proc_reg_write(struct snd_info_entry *entry, 1035 struct snd_info_buffer *buffer) 1036 { 1037 struct emu10k1x *emu = entry->private_data; 1038 char line[64]; 1039 unsigned int reg, channel_id , val; 1040 1041 while (!snd_info_get_line(buffer, line, sizeof(line))) { 1042 if (sscanf(line, "%x %x %x", ®, &channel_id, &val) != 3) 1043 continue; 1044 1045 if ((reg < 0x49) && (reg >= 0) && (val <= 0xffffffff) 1046 && (channel_id >= 0) && (channel_id <= 2) ) 1047 snd_emu10k1x_ptr_write(emu, reg, channel_id, val); 1048 } 1049 } 1050 1051 static int __devinit snd_emu10k1x_proc_init(struct emu10k1x * emu) 1052 { 1053 struct snd_info_entry *entry; 1054 1055 if(! snd_card_proc_new(emu->card, "emu10k1x_regs", &entry)) { 1056 snd_info_set_text_ops(entry, emu, snd_emu10k1x_proc_reg_read); 1057 entry->c.text.write = snd_emu10k1x_proc_reg_write; 1058 entry->mode |= S_IWUSR; 1059 entry->private_data = emu; 1060 } 1061 1062 return 0; 1063 } 1064 1065 static int snd_emu10k1x_shared_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 1066 { 1067 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 1068 uinfo->count = 1; 1069 uinfo->value.integer.min = 0; 1070 uinfo->value.integer.max = 1; 1071 return 0; 1072 } 1073 1074 static int snd_emu10k1x_shared_spdif_get(struct snd_kcontrol *kcontrol, 1075 struct snd_ctl_elem_value *ucontrol) 1076 { 1077 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol); 1078 1079 ucontrol->value.integer.value[0] = (snd_emu10k1x_ptr_read(emu, SPDIF_SELECT, 0) == 0x700) ? 0 : 1; 1080 1081 return 0; 1082 } 1083 1084 static int snd_emu10k1x_shared_spdif_put(struct snd_kcontrol *kcontrol, 1085 struct snd_ctl_elem_value *ucontrol) 1086 { 1087 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol); 1088 unsigned int val; 1089 int change = 0; 1090 1091 val = ucontrol->value.integer.value[0] ; 1092 1093 if (val) { 1094 // enable spdif output 1095 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x000); 1096 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x700); 1097 snd_emu10k1x_gpio_write(emu, 0x1000); 1098 } else { 1099 // disable spdif output 1100 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x700); 1101 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x1003F); 1102 snd_emu10k1x_gpio_write(emu, 0x1080); 1103 } 1104 return change; 1105 } 1106 1107 static struct snd_kcontrol_new snd_emu10k1x_shared_spdif __devinitdata = 1108 { 1109 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1110 .name = "Analog/Digital Output Jack", 1111 .info = snd_emu10k1x_shared_spdif_info, 1112 .get = snd_emu10k1x_shared_spdif_get, 1113 .put = snd_emu10k1x_shared_spdif_put 1114 }; 1115 1116 static int snd_emu10k1x_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 1117 { 1118 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; 1119 uinfo->count = 1; 1120 return 0; 1121 } 1122 1123 static int snd_emu10k1x_spdif_get(struct snd_kcontrol *kcontrol, 1124 struct snd_ctl_elem_value *ucontrol) 1125 { 1126 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol); 1127 unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); 1128 1129 ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff; 1130 ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff; 1131 ucontrol->value.iec958.status[2] = (emu->spdif_bits[idx] >> 16) & 0xff; 1132 ucontrol->value.iec958.status[3] = (emu->spdif_bits[idx] >> 24) & 0xff; 1133 return 0; 1134 } 1135 1136 static int snd_emu10k1x_spdif_get_mask(struct snd_kcontrol *kcontrol, 1137 struct snd_ctl_elem_value *ucontrol) 1138 { 1139 ucontrol->value.iec958.status[0] = 0xff; 1140 ucontrol->value.iec958.status[1] = 0xff; 1141 ucontrol->value.iec958.status[2] = 0xff; 1142 ucontrol->value.iec958.status[3] = 0xff; 1143 return 0; 1144 } 1145 1146 static int snd_emu10k1x_spdif_put(struct snd_kcontrol *kcontrol, 1147 struct snd_ctl_elem_value *ucontrol) 1148 { 1149 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol); 1150 unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); 1151 int change; 1152 unsigned int val; 1153 1154 val = (ucontrol->value.iec958.status[0] << 0) | 1155 (ucontrol->value.iec958.status[1] << 8) | 1156 (ucontrol->value.iec958.status[2] << 16) | 1157 (ucontrol->value.iec958.status[3] << 24); 1158 change = val != emu->spdif_bits[idx]; 1159 if (change) { 1160 snd_emu10k1x_ptr_write(emu, SPCS0 + idx, 0, val); 1161 emu->spdif_bits[idx] = val; 1162 } 1163 return change; 1164 } 1165 1166 static struct snd_kcontrol_new snd_emu10k1x_spdif_mask_control = 1167 { 1168 .access = SNDRV_CTL_ELEM_ACCESS_READ, 1169 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 1170 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK), 1171 .count = 3, 1172 .info = snd_emu10k1x_spdif_info, 1173 .get = snd_emu10k1x_spdif_get_mask 1174 }; 1175 1176 static struct snd_kcontrol_new snd_emu10k1x_spdif_control = 1177 { 1178 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 1179 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT), 1180 .count = 3, 1181 .info = snd_emu10k1x_spdif_info, 1182 .get = snd_emu10k1x_spdif_get, 1183 .put = snd_emu10k1x_spdif_put 1184 }; 1185 1186 static int __devinit snd_emu10k1x_mixer(struct emu10k1x *emu) 1187 { 1188 int err; 1189 struct snd_kcontrol *kctl; 1190 struct snd_card *card = emu->card; 1191 1192 if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_mask_control, emu)) == NULL) 1193 return -ENOMEM; 1194 if ((err = snd_ctl_add(card, kctl))) 1195 return err; 1196 if ((kctl = snd_ctl_new1(&snd_emu10k1x_shared_spdif, emu)) == NULL) 1197 return -ENOMEM; 1198 if ((err = snd_ctl_add(card, kctl))) 1199 return err; 1200 if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_control, emu)) == NULL) 1201 return -ENOMEM; 1202 if ((err = snd_ctl_add(card, kctl))) 1203 return err; 1204 1205 return 0; 1206 } 1207 1208 #define EMU10K1X_MIDI_MODE_INPUT (1<<0) 1209 #define EMU10K1X_MIDI_MODE_OUTPUT (1<<1) 1210 1211 static inline unsigned char mpu401_read(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int idx) 1212 { 1213 return (unsigned char)snd_emu10k1x_ptr_read(emu, mpu->port + idx, 0); 1214 } 1215 1216 static inline void mpu401_write(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int data, int idx) 1217 { 1218 snd_emu10k1x_ptr_write(emu, mpu->port + idx, 0, data); 1219 } 1220 1221 #define mpu401_write_data(emu, mpu, data) mpu401_write(emu, mpu, data, 0) 1222 #define mpu401_write_cmd(emu, mpu, data) mpu401_write(emu, mpu, data, 1) 1223 #define mpu401_read_data(emu, mpu) mpu401_read(emu, mpu, 0) 1224 #define mpu401_read_stat(emu, mpu) mpu401_read(emu, mpu, 1) 1225 1226 #define mpu401_input_avail(emu,mpu) (!(mpu401_read_stat(emu,mpu) & 0x80)) 1227 #define mpu401_output_ready(emu,mpu) (!(mpu401_read_stat(emu,mpu) & 0x40)) 1228 1229 #define MPU401_RESET 0xff 1230 #define MPU401_ENTER_UART 0x3f 1231 #define MPU401_ACK 0xfe 1232 1233 static void mpu401_clear_rx(struct emu10k1x *emu, struct emu10k1x_midi *mpu) 1234 { 1235 int timeout = 100000; 1236 for (; timeout > 0 && mpu401_input_avail(emu, mpu); timeout--) 1237 mpu401_read_data(emu, mpu); 1238 #ifdef CONFIG_SND_DEBUG 1239 if (timeout <= 0) 1240 snd_printk(KERN_ERR "cmd: clear rx timeout (status = 0x%x)\n", mpu401_read_stat(emu, mpu)); 1241 #endif 1242 } 1243 1244 /* 1245 1246 */ 1247 1248 static void do_emu10k1x_midi_interrupt(struct emu10k1x *emu, 1249 struct emu10k1x_midi *midi, unsigned int status) 1250 { 1251 unsigned char byte; 1252 1253 if (midi->rmidi == NULL) { 1254 snd_emu10k1x_intr_disable(emu, midi->tx_enable | midi->rx_enable); 1255 return; 1256 } 1257 1258 spin_lock(&midi->input_lock); 1259 if ((status & midi->ipr_rx) && mpu401_input_avail(emu, midi)) { 1260 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) { 1261 mpu401_clear_rx(emu, midi); 1262 } else { 1263 byte = mpu401_read_data(emu, midi); 1264 if (midi->substream_input) 1265 snd_rawmidi_receive(midi->substream_input, &byte, 1); 1266 } 1267 } 1268 spin_unlock(&midi->input_lock); 1269 1270 spin_lock(&midi->output_lock); 1271 if ((status & midi->ipr_tx) && mpu401_output_ready(emu, midi)) { 1272 if (midi->substream_output && 1273 snd_rawmidi_transmit(midi->substream_output, &byte, 1) == 1) { 1274 mpu401_write_data(emu, midi, byte); 1275 } else { 1276 snd_emu10k1x_intr_disable(emu, midi->tx_enable); 1277 } 1278 } 1279 spin_unlock(&midi->output_lock); 1280 } 1281 1282 static void snd_emu10k1x_midi_interrupt(struct emu10k1x *emu, unsigned int status) 1283 { 1284 do_emu10k1x_midi_interrupt(emu, &emu->midi, status); 1285 } 1286 1287 static int snd_emu10k1x_midi_cmd(struct emu10k1x * emu, 1288 struct emu10k1x_midi *midi, unsigned char cmd, int ack) 1289 { 1290 unsigned long flags; 1291 int timeout, ok; 1292 1293 spin_lock_irqsave(&midi->input_lock, flags); 1294 mpu401_write_data(emu, midi, 0x00); 1295 /* mpu401_clear_rx(emu, midi); */ 1296 1297 mpu401_write_cmd(emu, midi, cmd); 1298 if (ack) { 1299 ok = 0; 1300 timeout = 10000; 1301 while (!ok && timeout-- > 0) { 1302 if (mpu401_input_avail(emu, midi)) { 1303 if (mpu401_read_data(emu, midi) == MPU401_ACK) 1304 ok = 1; 1305 } 1306 } 1307 if (!ok && mpu401_read_data(emu, midi) == MPU401_ACK) 1308 ok = 1; 1309 } else { 1310 ok = 1; 1311 } 1312 spin_unlock_irqrestore(&midi->input_lock, flags); 1313 if (!ok) { 1314 snd_printk(KERN_ERR "midi_cmd: 0x%x failed at 0x%lx (status = 0x%x, data = 0x%x)!!!\n", 1315 cmd, emu->port, 1316 mpu401_read_stat(emu, midi), 1317 mpu401_read_data(emu, midi)); 1318 return 1; 1319 } 1320 return 0; 1321 } 1322 1323 static int snd_emu10k1x_midi_input_open(struct snd_rawmidi_substream *substream) 1324 { 1325 struct emu10k1x *emu; 1326 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1327 unsigned long flags; 1328 1329 emu = midi->emu; 1330 snd_assert(emu, return -ENXIO); 1331 spin_lock_irqsave(&midi->open_lock, flags); 1332 midi->midi_mode |= EMU10K1X_MIDI_MODE_INPUT; 1333 midi->substream_input = substream; 1334 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) { 1335 spin_unlock_irqrestore(&midi->open_lock, flags); 1336 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1)) 1337 goto error_out; 1338 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1)) 1339 goto error_out; 1340 } else { 1341 spin_unlock_irqrestore(&midi->open_lock, flags); 1342 } 1343 return 0; 1344 1345 error_out: 1346 return -EIO; 1347 } 1348 1349 static int snd_emu10k1x_midi_output_open(struct snd_rawmidi_substream *substream) 1350 { 1351 struct emu10k1x *emu; 1352 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1353 unsigned long flags; 1354 1355 emu = midi->emu; 1356 snd_assert(emu, return -ENXIO); 1357 spin_lock_irqsave(&midi->open_lock, flags); 1358 midi->midi_mode |= EMU10K1X_MIDI_MODE_OUTPUT; 1359 midi->substream_output = substream; 1360 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) { 1361 spin_unlock_irqrestore(&midi->open_lock, flags); 1362 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1)) 1363 goto error_out; 1364 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1)) 1365 goto error_out; 1366 } else { 1367 spin_unlock_irqrestore(&midi->open_lock, flags); 1368 } 1369 return 0; 1370 1371 error_out: 1372 return -EIO; 1373 } 1374 1375 static int snd_emu10k1x_midi_input_close(struct snd_rawmidi_substream *substream) 1376 { 1377 struct emu10k1x *emu; 1378 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1379 unsigned long flags; 1380 int err = 0; 1381 1382 emu = midi->emu; 1383 snd_assert(emu, return -ENXIO); 1384 spin_lock_irqsave(&midi->open_lock, flags); 1385 snd_emu10k1x_intr_disable(emu, midi->rx_enable); 1386 midi->midi_mode &= ~EMU10K1X_MIDI_MODE_INPUT; 1387 midi->substream_input = NULL; 1388 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) { 1389 spin_unlock_irqrestore(&midi->open_lock, flags); 1390 err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0); 1391 } else { 1392 spin_unlock_irqrestore(&midi->open_lock, flags); 1393 } 1394 return err; 1395 } 1396 1397 static int snd_emu10k1x_midi_output_close(struct snd_rawmidi_substream *substream) 1398 { 1399 struct emu10k1x *emu; 1400 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1401 unsigned long flags; 1402 int err = 0; 1403 1404 emu = midi->emu; 1405 snd_assert(emu, return -ENXIO); 1406 spin_lock_irqsave(&midi->open_lock, flags); 1407 snd_emu10k1x_intr_disable(emu, midi->tx_enable); 1408 midi->midi_mode &= ~EMU10K1X_MIDI_MODE_OUTPUT; 1409 midi->substream_output = NULL; 1410 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) { 1411 spin_unlock_irqrestore(&midi->open_lock, flags); 1412 err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0); 1413 } else { 1414 spin_unlock_irqrestore(&midi->open_lock, flags); 1415 } 1416 return err; 1417 } 1418 1419 static void snd_emu10k1x_midi_input_trigger(struct snd_rawmidi_substream *substream, int up) 1420 { 1421 struct emu10k1x *emu; 1422 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1423 emu = midi->emu; 1424 snd_assert(emu, return); 1425 1426 if (up) 1427 snd_emu10k1x_intr_enable(emu, midi->rx_enable); 1428 else 1429 snd_emu10k1x_intr_disable(emu, midi->rx_enable); 1430 } 1431 1432 static void snd_emu10k1x_midi_output_trigger(struct snd_rawmidi_substream *substream, int up) 1433 { 1434 struct emu10k1x *emu; 1435 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1436 unsigned long flags; 1437 1438 emu = midi->emu; 1439 snd_assert(emu, return); 1440 1441 if (up) { 1442 int max = 4; 1443 unsigned char byte; 1444 1445 /* try to send some amount of bytes here before interrupts */ 1446 spin_lock_irqsave(&midi->output_lock, flags); 1447 while (max > 0) { 1448 if (mpu401_output_ready(emu, midi)) { 1449 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT) || 1450 snd_rawmidi_transmit(substream, &byte, 1) != 1) { 1451 /* no more data */ 1452 spin_unlock_irqrestore(&midi->output_lock, flags); 1453 return; 1454 } 1455 mpu401_write_data(emu, midi, byte); 1456 max--; 1457 } else { 1458 break; 1459 } 1460 } 1461 spin_unlock_irqrestore(&midi->output_lock, flags); 1462 snd_emu10k1x_intr_enable(emu, midi->tx_enable); 1463 } else { 1464 snd_emu10k1x_intr_disable(emu, midi->tx_enable); 1465 } 1466 } 1467 1468 /* 1469 1470 */ 1471 1472 static struct snd_rawmidi_ops snd_emu10k1x_midi_output = 1473 { 1474 .open = snd_emu10k1x_midi_output_open, 1475 .close = snd_emu10k1x_midi_output_close, 1476 .trigger = snd_emu10k1x_midi_output_trigger, 1477 }; 1478 1479 static struct snd_rawmidi_ops snd_emu10k1x_midi_input = 1480 { 1481 .open = snd_emu10k1x_midi_input_open, 1482 .close = snd_emu10k1x_midi_input_close, 1483 .trigger = snd_emu10k1x_midi_input_trigger, 1484 }; 1485 1486 static void snd_emu10k1x_midi_free(struct snd_rawmidi *rmidi) 1487 { 1488 struct emu10k1x_midi *midi = rmidi->private_data; 1489 midi->interrupt = NULL; 1490 midi->rmidi = NULL; 1491 } 1492 1493 static int __devinit emu10k1x_midi_init(struct emu10k1x *emu, 1494 struct emu10k1x_midi *midi, int device, char *name) 1495 { 1496 struct snd_rawmidi *rmidi; 1497 int err; 1498 1499 if ((err = snd_rawmidi_new(emu->card, name, device, 1, 1, &rmidi)) < 0) 1500 return err; 1501 midi->emu = emu; 1502 spin_lock_init(&midi->open_lock); 1503 spin_lock_init(&midi->input_lock); 1504 spin_lock_init(&midi->output_lock); 1505 strcpy(rmidi->name, name); 1506 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_emu10k1x_midi_output); 1507 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_emu10k1x_midi_input); 1508 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | 1509 SNDRV_RAWMIDI_INFO_INPUT | 1510 SNDRV_RAWMIDI_INFO_DUPLEX; 1511 rmidi->private_data = midi; 1512 rmidi->private_free = snd_emu10k1x_midi_free; 1513 midi->rmidi = rmidi; 1514 return 0; 1515 } 1516 1517 static int __devinit snd_emu10k1x_midi(struct emu10k1x *emu) 1518 { 1519 struct emu10k1x_midi *midi = &emu->midi; 1520 int err; 1521 1522 if ((err = emu10k1x_midi_init(emu, midi, 0, "EMU10K1X MPU-401 (UART)")) < 0) 1523 return err; 1524 1525 midi->tx_enable = INTE_MIDITXENABLE; 1526 midi->rx_enable = INTE_MIDIRXENABLE; 1527 midi->port = MUDATA; 1528 midi->ipr_tx = IPR_MIDITRANSBUFEMPTY; 1529 midi->ipr_rx = IPR_MIDIRECVBUFEMPTY; 1530 midi->interrupt = snd_emu10k1x_midi_interrupt; 1531 return 0; 1532 } 1533 1534 static int __devinit snd_emu10k1x_probe(struct pci_dev *pci, 1535 const struct pci_device_id *pci_id) 1536 { 1537 static int dev; 1538 struct snd_card *card; 1539 struct emu10k1x *chip; 1540 int err; 1541 1542 if (dev >= SNDRV_CARDS) 1543 return -ENODEV; 1544 if (!enable[dev]) { 1545 dev++; 1546 return -ENOENT; 1547 } 1548 1549 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); 1550 if (card == NULL) 1551 return -ENOMEM; 1552 1553 if ((err = snd_emu10k1x_create(card, pci, &chip)) < 0) { 1554 snd_card_free(card); 1555 return err; 1556 } 1557 1558 if ((err = snd_emu10k1x_pcm(chip, 0, NULL)) < 0) { 1559 snd_card_free(card); 1560 return err; 1561 } 1562 if ((err = snd_emu10k1x_pcm(chip, 1, NULL)) < 0) { 1563 snd_card_free(card); 1564 return err; 1565 } 1566 if ((err = snd_emu10k1x_pcm(chip, 2, NULL)) < 0) { 1567 snd_card_free(card); 1568 return err; 1569 } 1570 1571 if ((err = snd_emu10k1x_ac97(chip)) < 0) { 1572 snd_card_free(card); 1573 return err; 1574 } 1575 1576 if ((err = snd_emu10k1x_mixer(chip)) < 0) { 1577 snd_card_free(card); 1578 return err; 1579 } 1580 1581 if ((err = snd_emu10k1x_midi(chip)) < 0) { 1582 snd_card_free(card); 1583 return err; 1584 } 1585 1586 snd_emu10k1x_proc_init(chip); 1587 1588 strcpy(card->driver, "EMU10K1X"); 1589 strcpy(card->shortname, "Dell Sound Blaster Live!"); 1590 sprintf(card->longname, "%s at 0x%lx irq %i", 1591 card->shortname, chip->port, chip->irq); 1592 1593 if ((err = snd_card_register(card)) < 0) { 1594 snd_card_free(card); 1595 return err; 1596 } 1597 1598 pci_set_drvdata(pci, card); 1599 dev++; 1600 return 0; 1601 } 1602 1603 static void __devexit snd_emu10k1x_remove(struct pci_dev *pci) 1604 { 1605 snd_card_free(pci_get_drvdata(pci)); 1606 pci_set_drvdata(pci, NULL); 1607 } 1608 1609 // PCI IDs 1610 static struct pci_device_id snd_emu10k1x_ids[] = { 1611 { 0x1102, 0x0006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* Dell OEM version (EMU10K1) */ 1612 { 0, } 1613 }; 1614 MODULE_DEVICE_TABLE(pci, snd_emu10k1x_ids); 1615 1616 // pci_driver definition 1617 static struct pci_driver driver = { 1618 .name = "EMU10K1X", 1619 .id_table = snd_emu10k1x_ids, 1620 .probe = snd_emu10k1x_probe, 1621 .remove = __devexit_p(snd_emu10k1x_remove), 1622 }; 1623 1624 // initialization of the module 1625 static int __init alsa_card_emu10k1x_init(void) 1626 { 1627 return pci_register_driver(&driver); 1628 } 1629 1630 // clean up the module 1631 static void __exit alsa_card_emu10k1x_exit(void) 1632 { 1633 pci_unregister_driver(&driver); 1634 } 1635 1636 module_init(alsa_card_emu10k1x_init) 1637 module_exit(alsa_card_emu10k1x_exit) 1638