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 int 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, (void *)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 struct pt_regs *regs) 785 { 786 unsigned int status; 787 788 struct emu10k1x *chip = dev_id; 789 struct emu10k1x_voice *pvoice = chip->voices; 790 int i; 791 int mask; 792 793 status = inl(chip->port + IPR); 794 795 if (! status) 796 return IRQ_NONE; 797 798 // capture interrupt 799 if (status & (IPR_CAP_0_LOOP | IPR_CAP_0_HALF_LOOP)) { 800 struct emu10k1x_voice *pvoice = &chip->capture_voice; 801 if (pvoice->use) 802 snd_emu10k1x_pcm_interrupt(chip, pvoice); 803 else 804 snd_emu10k1x_intr_disable(chip, 805 INTE_CAP_0_LOOP | 806 INTE_CAP_0_HALF_LOOP); 807 } 808 809 mask = IPR_CH_0_LOOP|IPR_CH_0_HALF_LOOP; 810 for (i = 0; i < 3; i++) { 811 if (status & mask) { 812 if (pvoice->use) 813 snd_emu10k1x_pcm_interrupt(chip, pvoice); 814 else 815 snd_emu10k1x_intr_disable(chip, mask); 816 } 817 pvoice++; 818 mask <<= 1; 819 } 820 821 if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) { 822 if (chip->midi.interrupt) 823 chip->midi.interrupt(chip, status); 824 else 825 snd_emu10k1x_intr_disable(chip, INTE_MIDITXENABLE|INTE_MIDIRXENABLE); 826 } 827 828 // acknowledge the interrupt if necessary 829 outl(status, chip->port + IPR); 830 831 // snd_printk(KERN_INFO "interrupt %08x\n", status); 832 return IRQ_HANDLED; 833 } 834 835 static int __devinit snd_emu10k1x_pcm(struct emu10k1x *emu, int device, struct snd_pcm **rpcm) 836 { 837 struct snd_pcm *pcm; 838 int err; 839 int capture = 0; 840 841 if (rpcm) 842 *rpcm = NULL; 843 if (device == 0) 844 capture = 1; 845 846 if ((err = snd_pcm_new(emu->card, "emu10k1x", device, 1, capture, &pcm)) < 0) 847 return err; 848 849 pcm->private_data = emu; 850 851 switch(device) { 852 case 0: 853 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops); 854 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1x_capture_ops); 855 break; 856 case 1: 857 case 2: 858 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops); 859 break; 860 } 861 862 pcm->info_flags = 0; 863 pcm->dev_subclass = SNDRV_PCM_SUBCLASS_GENERIC_MIX; 864 switch(device) { 865 case 0: 866 strcpy(pcm->name, "EMU10K1X Front"); 867 break; 868 case 1: 869 strcpy(pcm->name, "EMU10K1X Rear"); 870 break; 871 case 2: 872 strcpy(pcm->name, "EMU10K1X Center/LFE"); 873 break; 874 } 875 emu->pcm = pcm; 876 877 snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, 878 snd_dma_pci_data(emu->pci), 879 32*1024, 32*1024); 880 881 if (rpcm) 882 *rpcm = pcm; 883 884 return 0; 885 } 886 887 static int __devinit snd_emu10k1x_create(struct snd_card *card, 888 struct pci_dev *pci, 889 struct emu10k1x **rchip) 890 { 891 struct emu10k1x *chip; 892 int err; 893 int ch; 894 static struct snd_device_ops ops = { 895 .dev_free = snd_emu10k1x_dev_free, 896 }; 897 898 *rchip = NULL; 899 900 if ((err = pci_enable_device(pci)) < 0) 901 return err; 902 if (pci_set_dma_mask(pci, DMA_28BIT_MASK) < 0 || 903 pci_set_consistent_dma_mask(pci, DMA_28BIT_MASK) < 0) { 904 snd_printk(KERN_ERR "error to set 28bit mask DMA\n"); 905 pci_disable_device(pci); 906 return -ENXIO; 907 } 908 909 chip = kzalloc(sizeof(*chip), GFP_KERNEL); 910 if (chip == NULL) { 911 pci_disable_device(pci); 912 return -ENOMEM; 913 } 914 915 chip->card = card; 916 chip->pci = pci; 917 chip->irq = -1; 918 919 spin_lock_init(&chip->emu_lock); 920 spin_lock_init(&chip->voice_lock); 921 922 chip->port = pci_resource_start(pci, 0); 923 if ((chip->res_port = request_region(chip->port, 8, 924 "EMU10K1X")) == NULL) { 925 snd_printk(KERN_ERR "emu10k1x: cannot allocate the port 0x%lx\n", chip->port); 926 snd_emu10k1x_free(chip); 927 return -EBUSY; 928 } 929 930 if (request_irq(pci->irq, snd_emu10k1x_interrupt, 931 IRQF_DISABLED|IRQF_SHARED, "EMU10K1X", 932 (void *)chip)) { 933 snd_printk(KERN_ERR "emu10k1x: cannot grab irq %d\n", pci->irq); 934 snd_emu10k1x_free(chip); 935 return -EBUSY; 936 } 937 chip->irq = pci->irq; 938 939 if(snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV, snd_dma_pci_data(pci), 940 4 * 1024, &chip->dma_buffer) < 0) { 941 snd_emu10k1x_free(chip); 942 return -ENOMEM; 943 } 944 945 pci_set_master(pci); 946 /* read revision & serial */ 947 pci_read_config_byte(pci, PCI_REVISION_ID, (char *)&chip->revision); 948 pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial); 949 pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model); 950 snd_printk(KERN_INFO "Model %04x Rev %08x Serial %08x\n", chip->model, 951 chip->revision, chip->serial); 952 953 outl(0, chip->port + INTE); 954 955 for(ch = 0; ch < 3; ch++) { 956 chip->voices[ch].emu = chip; 957 chip->voices[ch].number = ch; 958 } 959 960 /* 961 * Init to 0x02109204 : 962 * Clock accuracy = 0 (1000ppm) 963 * Sample Rate = 2 (48kHz) 964 * Audio Channel = 1 (Left of 2) 965 * Source Number = 0 (Unspecified) 966 * Generation Status = 1 (Original for Cat Code 12) 967 * Cat Code = 12 (Digital Signal Mixer) 968 * Mode = 0 (Mode 0) 969 * Emphasis = 0 (None) 970 * CP = 1 (Copyright unasserted) 971 * AN = 0 (Audio data) 972 * P = 0 (Consumer) 973 */ 974 snd_emu10k1x_ptr_write(chip, SPCS0, 0, 975 chip->spdif_bits[0] = 976 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 | 977 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | 978 SPCS_GENERATIONSTATUS | 0x00001200 | 979 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT); 980 snd_emu10k1x_ptr_write(chip, SPCS1, 0, 981 chip->spdif_bits[1] = 982 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 | 983 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | 984 SPCS_GENERATIONSTATUS | 0x00001200 | 985 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT); 986 snd_emu10k1x_ptr_write(chip, SPCS2, 0, 987 chip->spdif_bits[2] = 988 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 | 989 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | 990 SPCS_GENERATIONSTATUS | 0x00001200 | 991 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT); 992 993 snd_emu10k1x_ptr_write(chip, SPDIF_SELECT, 0, 0x700); // disable SPDIF 994 snd_emu10k1x_ptr_write(chip, ROUTING, 0, 0x1003F); // routing 995 snd_emu10k1x_gpio_write(chip, 0x1080); // analog mode 996 997 outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); 998 999 if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, 1000 chip, &ops)) < 0) { 1001 snd_emu10k1x_free(chip); 1002 return err; 1003 } 1004 *rchip = chip; 1005 return 0; 1006 } 1007 1008 static void snd_emu10k1x_proc_reg_read(struct snd_info_entry *entry, 1009 struct snd_info_buffer *buffer) 1010 { 1011 struct emu10k1x *emu = entry->private_data; 1012 unsigned long value,value1,value2; 1013 unsigned long flags; 1014 int i; 1015 1016 snd_iprintf(buffer, "Registers:\n\n"); 1017 for(i = 0; i < 0x20; i+=4) { 1018 spin_lock_irqsave(&emu->emu_lock, flags); 1019 value = inl(emu->port + i); 1020 spin_unlock_irqrestore(&emu->emu_lock, flags); 1021 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value); 1022 } 1023 snd_iprintf(buffer, "\nRegisters\n\n"); 1024 for(i = 0; i <= 0x48; i++) { 1025 value = snd_emu10k1x_ptr_read(emu, i, 0); 1026 if(i < 0x10 || (i >= 0x20 && i < 0x40)) { 1027 value1 = snd_emu10k1x_ptr_read(emu, i, 1); 1028 value2 = snd_emu10k1x_ptr_read(emu, i, 2); 1029 snd_iprintf(buffer, "%02X: %08lX %08lX %08lX\n", i, value, value1, value2); 1030 } else { 1031 snd_iprintf(buffer, "%02X: %08lX\n", i, value); 1032 } 1033 } 1034 } 1035 1036 static void snd_emu10k1x_proc_reg_write(struct snd_info_entry *entry, 1037 struct snd_info_buffer *buffer) 1038 { 1039 struct emu10k1x *emu = entry->private_data; 1040 char line[64]; 1041 unsigned int reg, channel_id , val; 1042 1043 while (!snd_info_get_line(buffer, line, sizeof(line))) { 1044 if (sscanf(line, "%x %x %x", ®, &channel_id, &val) != 3) 1045 continue; 1046 1047 if ((reg < 0x49) && (reg >=0) && (val <= 0xffffffff) 1048 && (channel_id >=0) && (channel_id <= 2) ) 1049 snd_emu10k1x_ptr_write(emu, reg, channel_id, val); 1050 } 1051 } 1052 1053 static int __devinit snd_emu10k1x_proc_init(struct emu10k1x * emu) 1054 { 1055 struct snd_info_entry *entry; 1056 1057 if(! snd_card_proc_new(emu->card, "emu10k1x_regs", &entry)) { 1058 snd_info_set_text_ops(entry, emu, snd_emu10k1x_proc_reg_read); 1059 entry->c.text.write = snd_emu10k1x_proc_reg_write; 1060 entry->mode |= S_IWUSR; 1061 entry->private_data = emu; 1062 } 1063 1064 return 0; 1065 } 1066 1067 static int snd_emu10k1x_shared_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 1068 { 1069 uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN; 1070 uinfo->count = 1; 1071 uinfo->value.integer.min = 0; 1072 uinfo->value.integer.max = 1; 1073 return 0; 1074 } 1075 1076 static int snd_emu10k1x_shared_spdif_get(struct snd_kcontrol *kcontrol, 1077 struct snd_ctl_elem_value *ucontrol) 1078 { 1079 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol); 1080 1081 ucontrol->value.integer.value[0] = (snd_emu10k1x_ptr_read(emu, SPDIF_SELECT, 0) == 0x700) ? 0 : 1; 1082 1083 return 0; 1084 } 1085 1086 static int snd_emu10k1x_shared_spdif_put(struct snd_kcontrol *kcontrol, 1087 struct snd_ctl_elem_value *ucontrol) 1088 { 1089 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol); 1090 unsigned int val; 1091 int change = 0; 1092 1093 val = ucontrol->value.integer.value[0] ; 1094 1095 if (val) { 1096 // enable spdif output 1097 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x000); 1098 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x700); 1099 snd_emu10k1x_gpio_write(emu, 0x1000); 1100 } else { 1101 // disable spdif output 1102 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x700); 1103 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x1003F); 1104 snd_emu10k1x_gpio_write(emu, 0x1080); 1105 } 1106 return change; 1107 } 1108 1109 static struct snd_kcontrol_new snd_emu10k1x_shared_spdif __devinitdata = 1110 { 1111 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1112 .name = "Analog/Digital Output Jack", 1113 .info = snd_emu10k1x_shared_spdif_info, 1114 .get = snd_emu10k1x_shared_spdif_get, 1115 .put = snd_emu10k1x_shared_spdif_put 1116 }; 1117 1118 static int snd_emu10k1x_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 1119 { 1120 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; 1121 uinfo->count = 1; 1122 return 0; 1123 } 1124 1125 static int snd_emu10k1x_spdif_get(struct snd_kcontrol *kcontrol, 1126 struct snd_ctl_elem_value *ucontrol) 1127 { 1128 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol); 1129 unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); 1130 1131 ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff; 1132 ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff; 1133 ucontrol->value.iec958.status[2] = (emu->spdif_bits[idx] >> 16) & 0xff; 1134 ucontrol->value.iec958.status[3] = (emu->spdif_bits[idx] >> 24) & 0xff; 1135 return 0; 1136 } 1137 1138 static int snd_emu10k1x_spdif_get_mask(struct snd_kcontrol *kcontrol, 1139 struct snd_ctl_elem_value *ucontrol) 1140 { 1141 ucontrol->value.iec958.status[0] = 0xff; 1142 ucontrol->value.iec958.status[1] = 0xff; 1143 ucontrol->value.iec958.status[2] = 0xff; 1144 ucontrol->value.iec958.status[3] = 0xff; 1145 return 0; 1146 } 1147 1148 static int snd_emu10k1x_spdif_put(struct snd_kcontrol *kcontrol, 1149 struct snd_ctl_elem_value *ucontrol) 1150 { 1151 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol); 1152 unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); 1153 int change; 1154 unsigned int val; 1155 1156 val = (ucontrol->value.iec958.status[0] << 0) | 1157 (ucontrol->value.iec958.status[1] << 8) | 1158 (ucontrol->value.iec958.status[2] << 16) | 1159 (ucontrol->value.iec958.status[3] << 24); 1160 change = val != emu->spdif_bits[idx]; 1161 if (change) { 1162 snd_emu10k1x_ptr_write(emu, SPCS0 + idx, 0, val); 1163 emu->spdif_bits[idx] = val; 1164 } 1165 return change; 1166 } 1167 1168 static struct snd_kcontrol_new snd_emu10k1x_spdif_mask_control = 1169 { 1170 .access = SNDRV_CTL_ELEM_ACCESS_READ, 1171 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 1172 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK), 1173 .count = 3, 1174 .info = snd_emu10k1x_spdif_info, 1175 .get = snd_emu10k1x_spdif_get_mask 1176 }; 1177 1178 static struct snd_kcontrol_new snd_emu10k1x_spdif_control = 1179 { 1180 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 1181 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT), 1182 .count = 3, 1183 .info = snd_emu10k1x_spdif_info, 1184 .get = snd_emu10k1x_spdif_get, 1185 .put = snd_emu10k1x_spdif_put 1186 }; 1187 1188 static int __devinit snd_emu10k1x_mixer(struct emu10k1x *emu) 1189 { 1190 int err; 1191 struct snd_kcontrol *kctl; 1192 struct snd_card *card = emu->card; 1193 1194 if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_mask_control, emu)) == NULL) 1195 return -ENOMEM; 1196 if ((err = snd_ctl_add(card, kctl))) 1197 return err; 1198 if ((kctl = snd_ctl_new1(&snd_emu10k1x_shared_spdif, emu)) == NULL) 1199 return -ENOMEM; 1200 if ((err = snd_ctl_add(card, kctl))) 1201 return err; 1202 if ((kctl = snd_ctl_new1(&snd_emu10k1x_spdif_control, emu)) == NULL) 1203 return -ENOMEM; 1204 if ((err = snd_ctl_add(card, kctl))) 1205 return err; 1206 1207 return 0; 1208 } 1209 1210 #define EMU10K1X_MIDI_MODE_INPUT (1<<0) 1211 #define EMU10K1X_MIDI_MODE_OUTPUT (1<<1) 1212 1213 static inline unsigned char mpu401_read(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int idx) 1214 { 1215 return (unsigned char)snd_emu10k1x_ptr_read(emu, mpu->port + idx, 0); 1216 } 1217 1218 static inline void mpu401_write(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int data, int idx) 1219 { 1220 snd_emu10k1x_ptr_write(emu, mpu->port + idx, 0, data); 1221 } 1222 1223 #define mpu401_write_data(emu, mpu, data) mpu401_write(emu, mpu, data, 0) 1224 #define mpu401_write_cmd(emu, mpu, data) mpu401_write(emu, mpu, data, 1) 1225 #define mpu401_read_data(emu, mpu) mpu401_read(emu, mpu, 0) 1226 #define mpu401_read_stat(emu, mpu) mpu401_read(emu, mpu, 1) 1227 1228 #define mpu401_input_avail(emu,mpu) (!(mpu401_read_stat(emu,mpu) & 0x80)) 1229 #define mpu401_output_ready(emu,mpu) (!(mpu401_read_stat(emu,mpu) & 0x40)) 1230 1231 #define MPU401_RESET 0xff 1232 #define MPU401_ENTER_UART 0x3f 1233 #define MPU401_ACK 0xfe 1234 1235 static void mpu401_clear_rx(struct emu10k1x *emu, struct emu10k1x_midi *mpu) 1236 { 1237 int timeout = 100000; 1238 for (; timeout > 0 && mpu401_input_avail(emu, mpu); timeout--) 1239 mpu401_read_data(emu, mpu); 1240 #ifdef CONFIG_SND_DEBUG 1241 if (timeout <= 0) 1242 snd_printk(KERN_ERR "cmd: clear rx timeout (status = 0x%x)\n", mpu401_read_stat(emu, mpu)); 1243 #endif 1244 } 1245 1246 /* 1247 1248 */ 1249 1250 static void do_emu10k1x_midi_interrupt(struct emu10k1x *emu, 1251 struct emu10k1x_midi *midi, unsigned int status) 1252 { 1253 unsigned char byte; 1254 1255 if (midi->rmidi == NULL) { 1256 snd_emu10k1x_intr_disable(emu, midi->tx_enable | midi->rx_enable); 1257 return; 1258 } 1259 1260 spin_lock(&midi->input_lock); 1261 if ((status & midi->ipr_rx) && mpu401_input_avail(emu, midi)) { 1262 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) { 1263 mpu401_clear_rx(emu, midi); 1264 } else { 1265 byte = mpu401_read_data(emu, midi); 1266 if (midi->substream_input) 1267 snd_rawmidi_receive(midi->substream_input, &byte, 1); 1268 } 1269 } 1270 spin_unlock(&midi->input_lock); 1271 1272 spin_lock(&midi->output_lock); 1273 if ((status & midi->ipr_tx) && mpu401_output_ready(emu, midi)) { 1274 if (midi->substream_output && 1275 snd_rawmidi_transmit(midi->substream_output, &byte, 1) == 1) { 1276 mpu401_write_data(emu, midi, byte); 1277 } else { 1278 snd_emu10k1x_intr_disable(emu, midi->tx_enable); 1279 } 1280 } 1281 spin_unlock(&midi->output_lock); 1282 } 1283 1284 static void snd_emu10k1x_midi_interrupt(struct emu10k1x *emu, unsigned int status) 1285 { 1286 do_emu10k1x_midi_interrupt(emu, &emu->midi, status); 1287 } 1288 1289 static int snd_emu10k1x_midi_cmd(struct emu10k1x * emu, 1290 struct emu10k1x_midi *midi, unsigned char cmd, int ack) 1291 { 1292 unsigned long flags; 1293 int timeout, ok; 1294 1295 spin_lock_irqsave(&midi->input_lock, flags); 1296 mpu401_write_data(emu, midi, 0x00); 1297 /* mpu401_clear_rx(emu, midi); */ 1298 1299 mpu401_write_cmd(emu, midi, cmd); 1300 if (ack) { 1301 ok = 0; 1302 timeout = 10000; 1303 while (!ok && timeout-- > 0) { 1304 if (mpu401_input_avail(emu, midi)) { 1305 if (mpu401_read_data(emu, midi) == MPU401_ACK) 1306 ok = 1; 1307 } 1308 } 1309 if (!ok && mpu401_read_data(emu, midi) == MPU401_ACK) 1310 ok = 1; 1311 } else { 1312 ok = 1; 1313 } 1314 spin_unlock_irqrestore(&midi->input_lock, flags); 1315 if (!ok) { 1316 snd_printk(KERN_ERR "midi_cmd: 0x%x failed at 0x%lx (status = 0x%x, data = 0x%x)!!!\n", 1317 cmd, emu->port, 1318 mpu401_read_stat(emu, midi), 1319 mpu401_read_data(emu, midi)); 1320 return 1; 1321 } 1322 return 0; 1323 } 1324 1325 static int snd_emu10k1x_midi_input_open(struct snd_rawmidi_substream *substream) 1326 { 1327 struct emu10k1x *emu; 1328 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1329 unsigned long flags; 1330 1331 emu = midi->emu; 1332 snd_assert(emu, return -ENXIO); 1333 spin_lock_irqsave(&midi->open_lock, flags); 1334 midi->midi_mode |= EMU10K1X_MIDI_MODE_INPUT; 1335 midi->substream_input = substream; 1336 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) { 1337 spin_unlock_irqrestore(&midi->open_lock, flags); 1338 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1)) 1339 goto error_out; 1340 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1)) 1341 goto error_out; 1342 } else { 1343 spin_unlock_irqrestore(&midi->open_lock, flags); 1344 } 1345 return 0; 1346 1347 error_out: 1348 return -EIO; 1349 } 1350 1351 static int snd_emu10k1x_midi_output_open(struct snd_rawmidi_substream *substream) 1352 { 1353 struct emu10k1x *emu; 1354 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1355 unsigned long flags; 1356 1357 emu = midi->emu; 1358 snd_assert(emu, return -ENXIO); 1359 spin_lock_irqsave(&midi->open_lock, flags); 1360 midi->midi_mode |= EMU10K1X_MIDI_MODE_OUTPUT; 1361 midi->substream_output = substream; 1362 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) { 1363 spin_unlock_irqrestore(&midi->open_lock, flags); 1364 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1)) 1365 goto error_out; 1366 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1)) 1367 goto error_out; 1368 } else { 1369 spin_unlock_irqrestore(&midi->open_lock, flags); 1370 } 1371 return 0; 1372 1373 error_out: 1374 return -EIO; 1375 } 1376 1377 static int snd_emu10k1x_midi_input_close(struct snd_rawmidi_substream *substream) 1378 { 1379 struct emu10k1x *emu; 1380 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1381 unsigned long flags; 1382 int err = 0; 1383 1384 emu = midi->emu; 1385 snd_assert(emu, return -ENXIO); 1386 spin_lock_irqsave(&midi->open_lock, flags); 1387 snd_emu10k1x_intr_disable(emu, midi->rx_enable); 1388 midi->midi_mode &= ~EMU10K1X_MIDI_MODE_INPUT; 1389 midi->substream_input = NULL; 1390 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) { 1391 spin_unlock_irqrestore(&midi->open_lock, flags); 1392 err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0); 1393 } else { 1394 spin_unlock_irqrestore(&midi->open_lock, flags); 1395 } 1396 return err; 1397 } 1398 1399 static int snd_emu10k1x_midi_output_close(struct snd_rawmidi_substream *substream) 1400 { 1401 struct emu10k1x *emu; 1402 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1403 unsigned long flags; 1404 int err = 0; 1405 1406 emu = midi->emu; 1407 snd_assert(emu, return -ENXIO); 1408 spin_lock_irqsave(&midi->open_lock, flags); 1409 snd_emu10k1x_intr_disable(emu, midi->tx_enable); 1410 midi->midi_mode &= ~EMU10K1X_MIDI_MODE_OUTPUT; 1411 midi->substream_output = NULL; 1412 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) { 1413 spin_unlock_irqrestore(&midi->open_lock, flags); 1414 err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0); 1415 } else { 1416 spin_unlock_irqrestore(&midi->open_lock, flags); 1417 } 1418 return err; 1419 } 1420 1421 static void snd_emu10k1x_midi_input_trigger(struct snd_rawmidi_substream *substream, int up) 1422 { 1423 struct emu10k1x *emu; 1424 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1425 emu = midi->emu; 1426 snd_assert(emu, return); 1427 1428 if (up) 1429 snd_emu10k1x_intr_enable(emu, midi->rx_enable); 1430 else 1431 snd_emu10k1x_intr_disable(emu, midi->rx_enable); 1432 } 1433 1434 static void snd_emu10k1x_midi_output_trigger(struct snd_rawmidi_substream *substream, int up) 1435 { 1436 struct emu10k1x *emu; 1437 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1438 unsigned long flags; 1439 1440 emu = midi->emu; 1441 snd_assert(emu, return); 1442 1443 if (up) { 1444 int max = 4; 1445 unsigned char byte; 1446 1447 /* try to send some amount of bytes here before interrupts */ 1448 spin_lock_irqsave(&midi->output_lock, flags); 1449 while (max > 0) { 1450 if (mpu401_output_ready(emu, midi)) { 1451 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT) || 1452 snd_rawmidi_transmit(substream, &byte, 1) != 1) { 1453 /* no more data */ 1454 spin_unlock_irqrestore(&midi->output_lock, flags); 1455 return; 1456 } 1457 mpu401_write_data(emu, midi, byte); 1458 max--; 1459 } else { 1460 break; 1461 } 1462 } 1463 spin_unlock_irqrestore(&midi->output_lock, flags); 1464 snd_emu10k1x_intr_enable(emu, midi->tx_enable); 1465 } else { 1466 snd_emu10k1x_intr_disable(emu, midi->tx_enable); 1467 } 1468 } 1469 1470 /* 1471 1472 */ 1473 1474 static struct snd_rawmidi_ops snd_emu10k1x_midi_output = 1475 { 1476 .open = snd_emu10k1x_midi_output_open, 1477 .close = snd_emu10k1x_midi_output_close, 1478 .trigger = snd_emu10k1x_midi_output_trigger, 1479 }; 1480 1481 static struct snd_rawmidi_ops snd_emu10k1x_midi_input = 1482 { 1483 .open = snd_emu10k1x_midi_input_open, 1484 .close = snd_emu10k1x_midi_input_close, 1485 .trigger = snd_emu10k1x_midi_input_trigger, 1486 }; 1487 1488 static void snd_emu10k1x_midi_free(struct snd_rawmidi *rmidi) 1489 { 1490 struct emu10k1x_midi *midi = rmidi->private_data; 1491 midi->interrupt = NULL; 1492 midi->rmidi = NULL; 1493 } 1494 1495 static int __devinit emu10k1x_midi_init(struct emu10k1x *emu, 1496 struct emu10k1x_midi *midi, int device, char *name) 1497 { 1498 struct snd_rawmidi *rmidi; 1499 int err; 1500 1501 if ((err = snd_rawmidi_new(emu->card, name, device, 1, 1, &rmidi)) < 0) 1502 return err; 1503 midi->emu = emu; 1504 spin_lock_init(&midi->open_lock); 1505 spin_lock_init(&midi->input_lock); 1506 spin_lock_init(&midi->output_lock); 1507 strcpy(rmidi->name, name); 1508 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_emu10k1x_midi_output); 1509 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_emu10k1x_midi_input); 1510 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | 1511 SNDRV_RAWMIDI_INFO_INPUT | 1512 SNDRV_RAWMIDI_INFO_DUPLEX; 1513 rmidi->private_data = midi; 1514 rmidi->private_free = snd_emu10k1x_midi_free; 1515 midi->rmidi = rmidi; 1516 return 0; 1517 } 1518 1519 static int __devinit snd_emu10k1x_midi(struct emu10k1x *emu) 1520 { 1521 struct emu10k1x_midi *midi = &emu->midi; 1522 int err; 1523 1524 if ((err = emu10k1x_midi_init(emu, midi, 0, "EMU10K1X MPU-401 (UART)")) < 0) 1525 return err; 1526 1527 midi->tx_enable = INTE_MIDITXENABLE; 1528 midi->rx_enable = INTE_MIDIRXENABLE; 1529 midi->port = MUDATA; 1530 midi->ipr_tx = IPR_MIDITRANSBUFEMPTY; 1531 midi->ipr_rx = IPR_MIDIRECVBUFEMPTY; 1532 midi->interrupt = snd_emu10k1x_midi_interrupt; 1533 return 0; 1534 } 1535 1536 static int __devinit snd_emu10k1x_probe(struct pci_dev *pci, 1537 const struct pci_device_id *pci_id) 1538 { 1539 static int dev; 1540 struct snd_card *card; 1541 struct emu10k1x *chip; 1542 int err; 1543 1544 if (dev >= SNDRV_CARDS) 1545 return -ENODEV; 1546 if (!enable[dev]) { 1547 dev++; 1548 return -ENOENT; 1549 } 1550 1551 card = snd_card_new(index[dev], id[dev], THIS_MODULE, 0); 1552 if (card == NULL) 1553 return -ENOMEM; 1554 1555 if ((err = snd_emu10k1x_create(card, pci, &chip)) < 0) { 1556 snd_card_free(card); 1557 return err; 1558 } 1559 1560 if ((err = snd_emu10k1x_pcm(chip, 0, NULL)) < 0) { 1561 snd_card_free(card); 1562 return err; 1563 } 1564 if ((err = snd_emu10k1x_pcm(chip, 1, NULL)) < 0) { 1565 snd_card_free(card); 1566 return err; 1567 } 1568 if ((err = snd_emu10k1x_pcm(chip, 2, NULL)) < 0) { 1569 snd_card_free(card); 1570 return err; 1571 } 1572 1573 if ((err = snd_emu10k1x_ac97(chip)) < 0) { 1574 snd_card_free(card); 1575 return err; 1576 } 1577 1578 if ((err = snd_emu10k1x_mixer(chip)) < 0) { 1579 snd_card_free(card); 1580 return err; 1581 } 1582 1583 if ((err = snd_emu10k1x_midi(chip)) < 0) { 1584 snd_card_free(card); 1585 return err; 1586 } 1587 1588 snd_emu10k1x_proc_init(chip); 1589 1590 strcpy(card->driver, "EMU10K1X"); 1591 strcpy(card->shortname, "Dell Sound Blaster Live!"); 1592 sprintf(card->longname, "%s at 0x%lx irq %i", 1593 card->shortname, chip->port, chip->irq); 1594 1595 if ((err = snd_card_register(card)) < 0) { 1596 snd_card_free(card); 1597 return err; 1598 } 1599 1600 pci_set_drvdata(pci, card); 1601 dev++; 1602 return 0; 1603 } 1604 1605 static void __devexit snd_emu10k1x_remove(struct pci_dev *pci) 1606 { 1607 snd_card_free(pci_get_drvdata(pci)); 1608 pci_set_drvdata(pci, NULL); 1609 } 1610 1611 // PCI IDs 1612 static struct pci_device_id snd_emu10k1x_ids[] = { 1613 { 0x1102, 0x0006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 }, /* Dell OEM version (EMU10K1) */ 1614 { 0, } 1615 }; 1616 MODULE_DEVICE_TABLE(pci, snd_emu10k1x_ids); 1617 1618 // pci_driver definition 1619 static struct pci_driver driver = { 1620 .name = "EMU10K1X", 1621 .id_table = snd_emu10k1x_ids, 1622 .probe = snd_emu10k1x_probe, 1623 .remove = __devexit_p(snd_emu10k1x_remove), 1624 }; 1625 1626 // initialization of the module 1627 static int __init alsa_card_emu10k1x_init(void) 1628 { 1629 int err; 1630 1631 if ((err = pci_register_driver(&driver)) > 0) 1632 return err; 1633 1634 return 0; 1635 } 1636 1637 // clean up the module 1638 static void __exit alsa_card_emu10k1x_exit(void) 1639 { 1640 pci_unregister_driver(&driver); 1641 } 1642 1643 module_init(alsa_card_emu10k1x_init) 1644 module_exit(alsa_card_emu10k1x_exit) 1645