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