1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com> 4 * Driver EMU10K1X chips 5 * 6 * Parts of this code were adapted from audigyls.c driver which is 7 * Copyright (c) by James Courtier-Dutton <James@superbug.demon.co.uk> 8 * 9 * BUGS: 10 * -- 11 * 12 * TODO: 13 * 14 * Chips (SB0200 model): 15 * - EMU10K1X-DBQ 16 * - STAC 9708T 17 */ 18 #include <linux/init.h> 19 #include <linux/interrupt.h> 20 #include <linux/pci.h> 21 #include <linux/dma-mapping.h> 22 #include <linux/slab.h> 23 #include <linux/string.h> 24 #include <linux/module.h> 25 #include <sound/core.h> 26 #include <sound/initval.h> 27 #include <sound/pcm.h> 28 #include <sound/ac97_codec.h> 29 #include <sound/info.h> 30 #include <sound/rawmidi.h> 31 32 MODULE_AUTHOR("Francisco Moraes <fmoraes@nc.rr.com>"); 33 MODULE_DESCRIPTION("EMU10K1X"); 34 MODULE_LICENSE("GPL"); 35 36 // module parameters (see "Module Parameters") 37 static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; 38 static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; 39 static bool enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; 40 41 module_param_array(index, int, NULL, 0444); 42 MODULE_PARM_DESC(index, "Index value for the EMU10K1X soundcard."); 43 module_param_array(id, charp, NULL, 0444); 44 MODULE_PARM_DESC(id, "ID string for the EMU10K1X soundcard."); 45 module_param_array(enable, bool, NULL, 0444); 46 MODULE_PARM_DESC(enable, "Enable the EMU10K1X soundcard."); 47 48 49 // some definitions were borrowed from emu10k1 driver as they seem to be the same 50 /************************************************************************************************/ 51 /* PCI function 0 registers, address = <val> + PCIBASE0 */ 52 /************************************************************************************************/ 53 54 #define PTR 0x00 /* Indexed register set pointer register */ 55 /* NOTE: The CHANNELNUM and ADDRESS words can */ 56 /* be modified independently of each other. */ 57 58 #define DATA 0x04 /* Indexed register set data register */ 59 60 #define IPR 0x08 /* Global interrupt pending register */ 61 /* Clear pending interrupts by writing a 1 to */ 62 /* the relevant bits and zero to the other bits */ 63 #define IPR_MIDITRANSBUFEMPTY 0x00000001 /* MIDI UART transmit buffer empty */ 64 #define IPR_MIDIRECVBUFEMPTY 0x00000002 /* MIDI UART receive buffer empty */ 65 #define IPR_CH_0_LOOP 0x00000800 /* Channel 0 loop */ 66 #define IPR_CH_0_HALF_LOOP 0x00000100 /* Channel 0 half loop */ 67 #define IPR_CAP_0_LOOP 0x00080000 /* Channel capture loop */ 68 #define IPR_CAP_0_HALF_LOOP 0x00010000 /* Channel capture half loop */ 69 70 #define INTE 0x0c /* Interrupt enable register */ 71 #define INTE_MIDITXENABLE 0x00000001 /* Enable MIDI transmit-buffer-empty interrupts */ 72 #define INTE_MIDIRXENABLE 0x00000002 /* Enable MIDI receive-buffer-empty interrupts */ 73 #define INTE_CH_0_LOOP 0x00000800 /* Channel 0 loop */ 74 #define INTE_CH_0_HALF_LOOP 0x00000100 /* Channel 0 half loop */ 75 #define INTE_CAP_0_LOOP 0x00080000 /* Channel capture loop */ 76 #define INTE_CAP_0_HALF_LOOP 0x00010000 /* Channel capture half loop */ 77 78 #define HCFG 0x14 /* Hardware config register */ 79 80 #define HCFG_LOCKSOUNDCACHE 0x00000008 /* 1 = Cancel bustmaster accesses to soundcache */ 81 /* NOTE: This should generally never be used. */ 82 #define HCFG_AUDIOENABLE 0x00000001 /* 0 = CODECs transmit zero-valued samples */ 83 /* Should be set to 1 when the EMU10K1 is */ 84 /* completely initialized. */ 85 #define GPIO 0x18 /* Defaults: 00001080-Analog, 00001000-SPDIF. */ 86 87 88 #define AC97DATA 0x1c /* AC97 register set data register (16 bit) */ 89 90 #define AC97ADDRESS 0x1e /* AC97 register set address register (8 bit) */ 91 92 /********************************************************************************************************/ 93 /* Emu10k1x pointer-offset register set, accessed through the PTR and DATA registers */ 94 /********************************************************************************************************/ 95 #define PLAYBACK_LIST_ADDR 0x00 /* Base DMA address of a list of pointers to each period/size */ 96 /* One list entry: 4 bytes for DMA address, 97 * 4 bytes for period_size << 16. 98 * One list entry is 8 bytes long. 99 * One list entry for each period in the buffer. 100 */ 101 #define PLAYBACK_LIST_SIZE 0x01 /* Size of list in bytes << 16. E.g. 8 periods -> 0x00380000 */ 102 #define PLAYBACK_LIST_PTR 0x02 /* Pointer to the current period being played */ 103 #define PLAYBACK_DMA_ADDR 0x04 /* Playback DMA address */ 104 #define PLAYBACK_PERIOD_SIZE 0x05 /* Playback period size */ 105 #define PLAYBACK_POINTER 0x06 /* Playback period pointer. Sample currently in DAC */ 106 #define PLAYBACK_UNKNOWN1 0x07 107 #define PLAYBACK_UNKNOWN2 0x08 108 109 /* Only one capture channel supported */ 110 #define CAPTURE_DMA_ADDR 0x10 /* Capture DMA address */ 111 #define CAPTURE_BUFFER_SIZE 0x11 /* Capture buffer size */ 112 #define CAPTURE_POINTER 0x12 /* Capture buffer pointer. Sample currently in ADC */ 113 #define CAPTURE_UNKNOWN 0x13 114 115 /* From 0x20 - 0x3f, last samples played on each channel */ 116 117 #define TRIGGER_CHANNEL 0x40 /* Trigger channel playback */ 118 #define TRIGGER_CHANNEL_0 0x00000001 /* Trigger channel 0 */ 119 #define TRIGGER_CHANNEL_1 0x00000002 /* Trigger channel 1 */ 120 #define TRIGGER_CHANNEL_2 0x00000004 /* Trigger channel 2 */ 121 #define TRIGGER_CAPTURE 0x00000100 /* Trigger capture channel */ 122 123 #define ROUTING 0x41 /* Setup sound routing ? */ 124 #define ROUTING_FRONT_LEFT 0x00000001 125 #define ROUTING_FRONT_RIGHT 0x00000002 126 #define ROUTING_REAR_LEFT 0x00000004 127 #define ROUTING_REAR_RIGHT 0x00000008 128 #define ROUTING_CENTER_LFE 0x00010000 129 130 #define SPCS0 0x42 /* SPDIF output Channel Status 0 register */ 131 132 #define SPCS1 0x43 /* SPDIF output Channel Status 1 register */ 133 134 #define SPCS2 0x44 /* SPDIF output Channel Status 2 register */ 135 136 #define SPCS_CLKACCYMASK 0x30000000 /* Clock accuracy */ 137 #define SPCS_CLKACCY_1000PPM 0x00000000 /* 1000 parts per million */ 138 #define SPCS_CLKACCY_50PPM 0x10000000 /* 50 parts per million */ 139 #define SPCS_CLKACCY_VARIABLE 0x20000000 /* Variable accuracy */ 140 #define SPCS_SAMPLERATEMASK 0x0f000000 /* Sample rate */ 141 #define SPCS_SAMPLERATE_44 0x00000000 /* 44.1kHz sample rate */ 142 #define SPCS_SAMPLERATE_48 0x02000000 /* 48kHz sample rate */ 143 #define SPCS_SAMPLERATE_32 0x03000000 /* 32kHz sample rate */ 144 #define SPCS_CHANNELNUMMASK 0x00f00000 /* Channel number */ 145 #define SPCS_CHANNELNUM_UNSPEC 0x00000000 /* Unspecified channel number */ 146 #define SPCS_CHANNELNUM_LEFT 0x00100000 /* Left channel */ 147 #define SPCS_CHANNELNUM_RIGHT 0x00200000 /* Right channel */ 148 #define SPCS_SOURCENUMMASK 0x000f0000 /* Source number */ 149 #define SPCS_SOURCENUM_UNSPEC 0x00000000 /* Unspecified source number */ 150 #define SPCS_GENERATIONSTATUS 0x00008000 /* Originality flag (see IEC-958 spec) */ 151 #define SPCS_CATEGORYCODEMASK 0x00007f00 /* Category code (see IEC-958 spec) */ 152 #define SPCS_MODEMASK 0x000000c0 /* Mode (see IEC-958 spec) */ 153 #define SPCS_EMPHASISMASK 0x00000038 /* Emphasis */ 154 #define SPCS_EMPHASIS_NONE 0x00000000 /* No emphasis */ 155 #define SPCS_EMPHASIS_50_15 0x00000008 /* 50/15 usec 2 channel */ 156 #define SPCS_COPYRIGHT 0x00000004 /* Copyright asserted flag -- do not modify */ 157 #define SPCS_NOTAUDIODATA 0x00000002 /* 0 = Digital audio, 1 = not audio */ 158 #define SPCS_PROFESSIONAL 0x00000001 /* 0 = Consumer (IEC-958), 1 = pro (AES3-1992) */ 159 160 #define SPDIF_SELECT 0x45 /* Enables SPDIF or Analogue outputs 0-Analogue, 0x700-SPDIF */ 161 162 /* This is the MPU port on the card */ 163 #define MUDATA 0x47 164 #define MUCMD 0x48 165 #define MUSTAT MUCMD 166 167 /* From 0x50 - 0x5f, last samples captured */ 168 169 /* 170 * The hardware has 3 channels for playback and 1 for capture. 171 * - channel 0 is the front channel 172 * - channel 1 is the rear channel 173 * - channel 2 is the center/lfe channel 174 * Volume is controlled by the AC97 for the front and rear channels by 175 * the PCM Playback Volume, Sigmatel Surround Playback Volume and 176 * Surround Playback Volume. The Sigmatel 4-Speaker Stereo switch affects 177 * the front/rear channel mixing in the REAR OUT jack. When using the 178 * 4-Speaker Stereo, both front and rear channels will be mixed in the 179 * REAR OUT. 180 * The center/lfe channel has no volume control and cannot be muted during 181 * playback. 182 */ 183 184 struct emu10k1x_voice { 185 struct emu10k1x *emu; 186 int number; 187 int use; 188 189 struct emu10k1x_pcm *epcm; 190 }; 191 192 struct emu10k1x_pcm { 193 struct emu10k1x *emu; 194 struct snd_pcm_substream *substream; 195 struct emu10k1x_voice *voice; 196 unsigned short running; 197 }; 198 199 struct emu10k1x_midi { 200 struct emu10k1x *emu; 201 struct snd_rawmidi *rmidi; 202 struct snd_rawmidi_substream *substream_input; 203 struct snd_rawmidi_substream *substream_output; 204 unsigned int midi_mode; 205 spinlock_t input_lock; 206 spinlock_t output_lock; 207 spinlock_t open_lock; 208 int tx_enable, rx_enable; 209 int port; 210 int ipr_tx, ipr_rx; 211 void (*interrupt)(struct emu10k1x *emu, unsigned int status); 212 }; 213 214 // definition of the chip-specific record 215 struct emu10k1x { 216 struct snd_card *card; 217 struct pci_dev *pci; 218 219 unsigned long port; 220 int irq; 221 222 unsigned char revision; /* chip revision */ 223 unsigned int serial; /* serial number */ 224 unsigned short model; /* subsystem id */ 225 226 spinlock_t emu_lock; 227 spinlock_t voice_lock; 228 229 struct snd_ac97 *ac97; 230 struct snd_pcm *pcm; 231 232 struct emu10k1x_voice voices[3]; 233 struct emu10k1x_voice capture_voice; 234 u32 spdif_bits[3]; // SPDIF out setup 235 236 struct snd_dma_buffer *dma_buffer; 237 238 struct emu10k1x_midi midi; 239 }; 240 241 /* hardware definition */ 242 static const struct snd_pcm_hardware snd_emu10k1x_playback_hw = { 243 .info = (SNDRV_PCM_INFO_MMAP | 244 SNDRV_PCM_INFO_INTERLEAVED | 245 SNDRV_PCM_INFO_BLOCK_TRANSFER | 246 SNDRV_PCM_INFO_MMAP_VALID), 247 .formats = SNDRV_PCM_FMTBIT_S16_LE, 248 .rates = SNDRV_PCM_RATE_48000, 249 .rate_min = 48000, 250 .rate_max = 48000, 251 .channels_min = 2, 252 .channels_max = 2, 253 .buffer_bytes_max = (32*1024), 254 .period_bytes_min = 64, 255 .period_bytes_max = (16*1024), 256 .periods_min = 2, 257 .periods_max = 8, 258 .fifo_size = 0, 259 }; 260 261 static const struct snd_pcm_hardware snd_emu10k1x_capture_hw = { 262 .info = (SNDRV_PCM_INFO_MMAP | 263 SNDRV_PCM_INFO_INTERLEAVED | 264 SNDRV_PCM_INFO_BLOCK_TRANSFER | 265 SNDRV_PCM_INFO_MMAP_VALID), 266 .formats = SNDRV_PCM_FMTBIT_S16_LE, 267 .rates = SNDRV_PCM_RATE_48000, 268 .rate_min = 48000, 269 .rate_max = 48000, 270 .channels_min = 2, 271 .channels_max = 2, 272 .buffer_bytes_max = (32*1024), 273 .period_bytes_min = 64, 274 .period_bytes_max = (16*1024), 275 .periods_min = 2, 276 .periods_max = 2, 277 .fifo_size = 0, 278 }; 279 280 static unsigned int snd_emu10k1x_ptr_read(struct emu10k1x * emu, 281 unsigned int reg, 282 unsigned int chn) 283 { 284 unsigned long flags; 285 unsigned int regptr, val; 286 287 regptr = (reg << 16) | chn; 288 289 spin_lock_irqsave(&emu->emu_lock, flags); 290 outl(regptr, emu->port + PTR); 291 val = inl(emu->port + DATA); 292 spin_unlock_irqrestore(&emu->emu_lock, flags); 293 return val; 294 } 295 296 static void snd_emu10k1x_ptr_write(struct emu10k1x *emu, 297 unsigned int reg, 298 unsigned int chn, 299 unsigned int data) 300 { 301 unsigned int regptr; 302 unsigned long flags; 303 304 regptr = (reg << 16) | chn; 305 306 spin_lock_irqsave(&emu->emu_lock, flags); 307 outl(regptr, emu->port + PTR); 308 outl(data, emu->port + DATA); 309 spin_unlock_irqrestore(&emu->emu_lock, flags); 310 } 311 312 static void snd_emu10k1x_intr_enable(struct emu10k1x *emu, unsigned int intrenb) 313 { 314 unsigned long flags; 315 unsigned int intr_enable; 316 317 spin_lock_irqsave(&emu->emu_lock, flags); 318 intr_enable = inl(emu->port + INTE) | intrenb; 319 outl(intr_enable, emu->port + INTE); 320 spin_unlock_irqrestore(&emu->emu_lock, flags); 321 } 322 323 static void snd_emu10k1x_intr_disable(struct emu10k1x *emu, unsigned int intrenb) 324 { 325 unsigned long flags; 326 unsigned int intr_enable; 327 328 spin_lock_irqsave(&emu->emu_lock, flags); 329 intr_enable = inl(emu->port + INTE) & ~intrenb; 330 outl(intr_enable, emu->port + INTE); 331 spin_unlock_irqrestore(&emu->emu_lock, flags); 332 } 333 334 static void snd_emu10k1x_gpio_write(struct emu10k1x *emu, unsigned int value) 335 { 336 unsigned long flags; 337 338 spin_lock_irqsave(&emu->emu_lock, flags); 339 outl(value, emu->port + GPIO); 340 spin_unlock_irqrestore(&emu->emu_lock, flags); 341 } 342 343 static void snd_emu10k1x_pcm_free_substream(struct snd_pcm_runtime *runtime) 344 { 345 kfree(runtime->private_data); 346 } 347 348 static void snd_emu10k1x_pcm_interrupt(struct emu10k1x *emu, struct emu10k1x_voice *voice) 349 { 350 struct emu10k1x_pcm *epcm; 351 352 epcm = voice->epcm; 353 if (!epcm) 354 return; 355 if (epcm->substream == NULL) 356 return; 357 #if 0 358 dev_info(emu->card->dev, 359 "IRQ: position = 0x%x, period = 0x%x, size = 0x%x\n", 360 epcm->substream->ops->pointer(epcm->substream), 361 snd_pcm_lib_period_bytes(epcm->substream), 362 snd_pcm_lib_buffer_bytes(epcm->substream)); 363 #endif 364 snd_pcm_period_elapsed(epcm->substream); 365 } 366 367 /* open callback */ 368 static int snd_emu10k1x_playback_open(struct snd_pcm_substream *substream) 369 { 370 struct emu10k1x *chip = snd_pcm_substream_chip(substream); 371 struct emu10k1x_pcm *epcm; 372 struct snd_pcm_runtime *runtime = substream->runtime; 373 int err; 374 375 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); 376 if (err < 0) 377 return err; 378 err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64); 379 if (err < 0) 380 return err; 381 382 epcm = kzalloc(sizeof(*epcm), GFP_KERNEL); 383 if (epcm == NULL) 384 return -ENOMEM; 385 epcm->emu = chip; 386 epcm->substream = substream; 387 388 runtime->private_data = epcm; 389 runtime->private_free = snd_emu10k1x_pcm_free_substream; 390 391 runtime->hw = snd_emu10k1x_playback_hw; 392 393 return 0; 394 } 395 396 /* close callback */ 397 static int snd_emu10k1x_playback_close(struct snd_pcm_substream *substream) 398 { 399 return 0; 400 } 401 402 /* hw_params callback */ 403 static int snd_emu10k1x_pcm_hw_params(struct snd_pcm_substream *substream, 404 struct snd_pcm_hw_params *hw_params) 405 { 406 struct snd_pcm_runtime *runtime = substream->runtime; 407 struct emu10k1x_pcm *epcm = runtime->private_data; 408 409 if (! epcm->voice) { 410 epcm->voice = &epcm->emu->voices[substream->pcm->device]; 411 epcm->voice->use = 1; 412 epcm->voice->epcm = epcm; 413 } 414 415 return 0; 416 } 417 418 /* hw_free callback */ 419 static int snd_emu10k1x_pcm_hw_free(struct snd_pcm_substream *substream) 420 { 421 struct snd_pcm_runtime *runtime = substream->runtime; 422 struct emu10k1x_pcm *epcm; 423 424 if (runtime->private_data == NULL) 425 return 0; 426 427 epcm = runtime->private_data; 428 429 if (epcm->voice) { 430 epcm->voice->use = 0; 431 epcm->voice->epcm = NULL; 432 epcm->voice = NULL; 433 } 434 435 return 0; 436 } 437 438 /* prepare callback */ 439 static int snd_emu10k1x_pcm_prepare(struct snd_pcm_substream *substream) 440 { 441 struct emu10k1x *emu = snd_pcm_substream_chip(substream); 442 struct snd_pcm_runtime *runtime = substream->runtime; 443 struct emu10k1x_pcm *epcm = runtime->private_data; 444 int voice = epcm->voice->number; 445 u32 *table_base = (u32 *)(emu->dma_buffer->area+1024*voice); 446 u32 period_size_bytes = frames_to_bytes(runtime, runtime->period_size); 447 int i; 448 449 for(i = 0; i < runtime->periods; i++) { 450 *table_base++=runtime->dma_addr+(i*period_size_bytes); 451 *table_base++=period_size_bytes<<16; 452 } 453 454 snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_ADDR, voice, emu->dma_buffer->addr+1024*voice); 455 snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_SIZE, voice, (runtime->periods - 1) << 19); 456 snd_emu10k1x_ptr_write(emu, PLAYBACK_LIST_PTR, voice, 0); 457 snd_emu10k1x_ptr_write(emu, PLAYBACK_POINTER, voice, 0); 458 snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN1, voice, 0); 459 snd_emu10k1x_ptr_write(emu, PLAYBACK_UNKNOWN2, voice, 0); 460 snd_emu10k1x_ptr_write(emu, PLAYBACK_DMA_ADDR, voice, runtime->dma_addr); 461 462 snd_emu10k1x_ptr_write(emu, PLAYBACK_PERIOD_SIZE, voice, frames_to_bytes(runtime, runtime->period_size)<<16); 463 464 return 0; 465 } 466 467 /* trigger callback */ 468 static int snd_emu10k1x_pcm_trigger(struct snd_pcm_substream *substream, 469 int cmd) 470 { 471 struct emu10k1x *emu = snd_pcm_substream_chip(substream); 472 struct snd_pcm_runtime *runtime = substream->runtime; 473 struct emu10k1x_pcm *epcm = runtime->private_data; 474 int channel = epcm->voice->number; 475 int result = 0; 476 477 /* 478 dev_dbg(emu->card->dev, 479 "trigger - emu10k1x = 0x%x, cmd = %i, pointer = %d\n", 480 (int)emu, cmd, (int)substream->ops->pointer(substream)); 481 */ 482 483 switch (cmd) { 484 case SNDRV_PCM_TRIGGER_START: 485 if(runtime->periods == 2) 486 snd_emu10k1x_intr_enable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel); 487 else 488 snd_emu10k1x_intr_enable(emu, INTE_CH_0_LOOP << channel); 489 epcm->running = 1; 490 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|(TRIGGER_CHANNEL_0<<channel)); 491 break; 492 case SNDRV_PCM_TRIGGER_STOP: 493 epcm->running = 0; 494 snd_emu10k1x_intr_disable(emu, (INTE_CH_0_LOOP | INTE_CH_0_HALF_LOOP) << channel); 495 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CHANNEL_0<<channel)); 496 break; 497 default: 498 result = -EINVAL; 499 break; 500 } 501 return result; 502 } 503 504 /* pointer callback */ 505 static snd_pcm_uframes_t 506 snd_emu10k1x_pcm_pointer(struct snd_pcm_substream *substream) 507 { 508 struct emu10k1x *emu = snd_pcm_substream_chip(substream); 509 struct snd_pcm_runtime *runtime = substream->runtime; 510 struct emu10k1x_pcm *epcm = runtime->private_data; 511 int channel = epcm->voice->number; 512 snd_pcm_uframes_t ptr = 0, ptr1 = 0, ptr2= 0,ptr3 = 0,ptr4 = 0; 513 514 if (!epcm->running) 515 return 0; 516 517 ptr3 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel); 518 ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel); 519 ptr4 = snd_emu10k1x_ptr_read(emu, PLAYBACK_LIST_PTR, channel); 520 521 if(ptr4 == 0 && ptr1 == frames_to_bytes(runtime, runtime->buffer_size)) 522 return 0; 523 524 if (ptr3 != ptr4) 525 ptr1 = snd_emu10k1x_ptr_read(emu, PLAYBACK_POINTER, channel); 526 ptr2 = bytes_to_frames(runtime, ptr1); 527 ptr2 += (ptr4 >> 3) * runtime->period_size; 528 ptr = ptr2; 529 530 if (ptr >= runtime->buffer_size) 531 ptr -= runtime->buffer_size; 532 533 return ptr; 534 } 535 536 /* operators */ 537 static const struct snd_pcm_ops snd_emu10k1x_playback_ops = { 538 .open = snd_emu10k1x_playback_open, 539 .close = snd_emu10k1x_playback_close, 540 .hw_params = snd_emu10k1x_pcm_hw_params, 541 .hw_free = snd_emu10k1x_pcm_hw_free, 542 .prepare = snd_emu10k1x_pcm_prepare, 543 .trigger = snd_emu10k1x_pcm_trigger, 544 .pointer = snd_emu10k1x_pcm_pointer, 545 }; 546 547 /* open_capture callback */ 548 static int snd_emu10k1x_pcm_open_capture(struct snd_pcm_substream *substream) 549 { 550 struct emu10k1x *chip = snd_pcm_substream_chip(substream); 551 struct emu10k1x_pcm *epcm; 552 struct snd_pcm_runtime *runtime = substream->runtime; 553 int err; 554 555 err = snd_pcm_hw_constraint_integer(runtime, SNDRV_PCM_HW_PARAM_PERIODS); 556 if (err < 0) 557 return err; 558 err = snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, 64); 559 if (err < 0) 560 return err; 561 562 epcm = kzalloc(sizeof(*epcm), GFP_KERNEL); 563 if (epcm == NULL) 564 return -ENOMEM; 565 566 epcm->emu = chip; 567 epcm->substream = substream; 568 569 runtime->private_data = epcm; 570 runtime->private_free = snd_emu10k1x_pcm_free_substream; 571 572 runtime->hw = snd_emu10k1x_capture_hw; 573 574 return 0; 575 } 576 577 /* close callback */ 578 static int snd_emu10k1x_pcm_close_capture(struct snd_pcm_substream *substream) 579 { 580 return 0; 581 } 582 583 /* hw_params callback */ 584 static int snd_emu10k1x_pcm_hw_params_capture(struct snd_pcm_substream *substream, 585 struct snd_pcm_hw_params *hw_params) 586 { 587 struct snd_pcm_runtime *runtime = substream->runtime; 588 struct emu10k1x_pcm *epcm = runtime->private_data; 589 590 if (! epcm->voice) { 591 if (epcm->emu->capture_voice.use) 592 return -EBUSY; 593 epcm->voice = &epcm->emu->capture_voice; 594 epcm->voice->epcm = epcm; 595 epcm->voice->use = 1; 596 } 597 598 return 0; 599 } 600 601 /* hw_free callback */ 602 static int snd_emu10k1x_pcm_hw_free_capture(struct snd_pcm_substream *substream) 603 { 604 struct snd_pcm_runtime *runtime = substream->runtime; 605 606 struct emu10k1x_pcm *epcm; 607 608 if (runtime->private_data == NULL) 609 return 0; 610 epcm = runtime->private_data; 611 612 if (epcm->voice) { 613 epcm->voice->use = 0; 614 epcm->voice->epcm = NULL; 615 epcm->voice = NULL; 616 } 617 618 return 0; 619 } 620 621 /* prepare capture callback */ 622 static int snd_emu10k1x_pcm_prepare_capture(struct snd_pcm_substream *substream) 623 { 624 struct emu10k1x *emu = snd_pcm_substream_chip(substream); 625 struct snd_pcm_runtime *runtime = substream->runtime; 626 627 snd_emu10k1x_ptr_write(emu, CAPTURE_DMA_ADDR, 0, runtime->dma_addr); 628 snd_emu10k1x_ptr_write(emu, CAPTURE_BUFFER_SIZE, 0, frames_to_bytes(runtime, runtime->buffer_size)<<16); // buffer size in bytes 629 snd_emu10k1x_ptr_write(emu, CAPTURE_POINTER, 0, 0); 630 snd_emu10k1x_ptr_write(emu, CAPTURE_UNKNOWN, 0, 0); 631 632 return 0; 633 } 634 635 /* trigger_capture callback */ 636 static int snd_emu10k1x_pcm_trigger_capture(struct snd_pcm_substream *substream, 637 int cmd) 638 { 639 struct emu10k1x *emu = snd_pcm_substream_chip(substream); 640 struct snd_pcm_runtime *runtime = substream->runtime; 641 struct emu10k1x_pcm *epcm = runtime->private_data; 642 int result = 0; 643 644 switch (cmd) { 645 case SNDRV_PCM_TRIGGER_START: 646 snd_emu10k1x_intr_enable(emu, INTE_CAP_0_LOOP | 647 INTE_CAP_0_HALF_LOOP); 648 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0)|TRIGGER_CAPTURE); 649 epcm->running = 1; 650 break; 651 case SNDRV_PCM_TRIGGER_STOP: 652 epcm->running = 0; 653 snd_emu10k1x_intr_disable(emu, INTE_CAP_0_LOOP | 654 INTE_CAP_0_HALF_LOOP); 655 snd_emu10k1x_ptr_write(emu, TRIGGER_CHANNEL, 0, snd_emu10k1x_ptr_read(emu, TRIGGER_CHANNEL, 0) & ~(TRIGGER_CAPTURE)); 656 break; 657 default: 658 result = -EINVAL; 659 break; 660 } 661 return result; 662 } 663 664 /* pointer_capture callback */ 665 static snd_pcm_uframes_t 666 snd_emu10k1x_pcm_pointer_capture(struct snd_pcm_substream *substream) 667 { 668 struct emu10k1x *emu = snd_pcm_substream_chip(substream); 669 struct snd_pcm_runtime *runtime = substream->runtime; 670 struct emu10k1x_pcm *epcm = runtime->private_data; 671 snd_pcm_uframes_t ptr; 672 673 if (!epcm->running) 674 return 0; 675 676 ptr = bytes_to_frames(runtime, snd_emu10k1x_ptr_read(emu, CAPTURE_POINTER, 0)); 677 if (ptr >= runtime->buffer_size) 678 ptr -= runtime->buffer_size; 679 680 return ptr; 681 } 682 683 static const struct snd_pcm_ops snd_emu10k1x_capture_ops = { 684 .open = snd_emu10k1x_pcm_open_capture, 685 .close = snd_emu10k1x_pcm_close_capture, 686 .hw_params = snd_emu10k1x_pcm_hw_params_capture, 687 .hw_free = snd_emu10k1x_pcm_hw_free_capture, 688 .prepare = snd_emu10k1x_pcm_prepare_capture, 689 .trigger = snd_emu10k1x_pcm_trigger_capture, 690 .pointer = snd_emu10k1x_pcm_pointer_capture, 691 }; 692 693 static unsigned short snd_emu10k1x_ac97_read(struct snd_ac97 *ac97, 694 unsigned short reg) 695 { 696 struct emu10k1x *emu = ac97->private_data; 697 unsigned long flags; 698 unsigned short val; 699 700 spin_lock_irqsave(&emu->emu_lock, flags); 701 outb(reg, emu->port + AC97ADDRESS); 702 val = inw(emu->port + AC97DATA); 703 spin_unlock_irqrestore(&emu->emu_lock, flags); 704 return val; 705 } 706 707 static void snd_emu10k1x_ac97_write(struct snd_ac97 *ac97, 708 unsigned short reg, unsigned short val) 709 { 710 struct emu10k1x *emu = ac97->private_data; 711 unsigned long flags; 712 713 spin_lock_irqsave(&emu->emu_lock, flags); 714 outb(reg, emu->port + AC97ADDRESS); 715 outw(val, emu->port + AC97DATA); 716 spin_unlock_irqrestore(&emu->emu_lock, flags); 717 } 718 719 static int snd_emu10k1x_ac97(struct emu10k1x *chip) 720 { 721 struct snd_ac97_bus *pbus; 722 struct snd_ac97_template ac97; 723 int err; 724 static const struct snd_ac97_bus_ops ops = { 725 .write = snd_emu10k1x_ac97_write, 726 .read = snd_emu10k1x_ac97_read, 727 }; 728 729 err = snd_ac97_bus(chip->card, 0, &ops, NULL, &pbus); 730 if (err < 0) 731 return err; 732 pbus->no_vra = 1; /* we don't need VRA */ 733 734 memset(&ac97, 0, sizeof(ac97)); 735 ac97.private_data = chip; 736 ac97.scaps = AC97_SCAP_NO_SPDIF; 737 return snd_ac97_mixer(pbus, &ac97, &chip->ac97); 738 } 739 740 static void snd_emu10k1x_free(struct snd_card *card) 741 { 742 struct emu10k1x *chip = card->private_data; 743 744 snd_emu10k1x_ptr_write(chip, TRIGGER_CHANNEL, 0, 0); 745 // disable interrupts 746 outl(0, chip->port + INTE); 747 // disable audio 748 outl(HCFG_LOCKSOUNDCACHE, chip->port + HCFG); 749 } 750 751 static irqreturn_t snd_emu10k1x_interrupt(int irq, void *dev_id) 752 { 753 unsigned int status; 754 755 struct emu10k1x *chip = dev_id; 756 struct emu10k1x_voice *pvoice = chip->voices; 757 int i; 758 int mask; 759 760 status = inl(chip->port + IPR); 761 762 if (! status) 763 return IRQ_NONE; 764 765 // capture interrupt 766 if (status & (IPR_CAP_0_LOOP | IPR_CAP_0_HALF_LOOP)) { 767 struct emu10k1x_voice *cap_voice = &chip->capture_voice; 768 if (cap_voice->use) 769 snd_emu10k1x_pcm_interrupt(chip, cap_voice); 770 else 771 snd_emu10k1x_intr_disable(chip, 772 INTE_CAP_0_LOOP | 773 INTE_CAP_0_HALF_LOOP); 774 } 775 776 mask = IPR_CH_0_LOOP|IPR_CH_0_HALF_LOOP; 777 for (i = 0; i < 3; i++) { 778 if (status & mask) { 779 if (pvoice->use) 780 snd_emu10k1x_pcm_interrupt(chip, pvoice); 781 else 782 snd_emu10k1x_intr_disable(chip, mask); 783 } 784 pvoice++; 785 mask <<= 1; 786 } 787 788 if (status & (IPR_MIDITRANSBUFEMPTY|IPR_MIDIRECVBUFEMPTY)) { 789 if (chip->midi.interrupt) 790 chip->midi.interrupt(chip, status); 791 else 792 snd_emu10k1x_intr_disable(chip, INTE_MIDITXENABLE|INTE_MIDIRXENABLE); 793 } 794 795 // acknowledge the interrupt if necessary 796 outl(status, chip->port + IPR); 797 798 /* dev_dbg(chip->card->dev, "interrupt %08x\n", status); */ 799 return IRQ_HANDLED; 800 } 801 802 static const struct snd_pcm_chmap_elem surround_map[] = { 803 { .channels = 2, 804 .map = { SNDRV_CHMAP_RL, SNDRV_CHMAP_RR } }, 805 { } 806 }; 807 808 static const struct snd_pcm_chmap_elem clfe_map[] = { 809 { .channels = 2, 810 .map = { SNDRV_CHMAP_FC, SNDRV_CHMAP_LFE } }, 811 { } 812 }; 813 814 static int snd_emu10k1x_pcm(struct emu10k1x *emu, int device) 815 { 816 struct snd_pcm *pcm; 817 const struct snd_pcm_chmap_elem *map = NULL; 818 int err; 819 int capture = 0; 820 821 if (device == 0) 822 capture = 1; 823 824 err = snd_pcm_new(emu->card, "emu10k1x", device, 1, capture, &pcm); 825 if (err < 0) 826 return err; 827 828 pcm->private_data = emu; 829 830 switch(device) { 831 case 0: 832 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops); 833 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, &snd_emu10k1x_capture_ops); 834 break; 835 case 1: 836 case 2: 837 snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, &snd_emu10k1x_playback_ops); 838 break; 839 } 840 841 pcm->info_flags = 0; 842 switch(device) { 843 case 0: 844 strscpy(pcm->name, "EMU10K1X Front"); 845 map = snd_pcm_std_chmaps; 846 break; 847 case 1: 848 strscpy(pcm->name, "EMU10K1X Rear"); 849 map = surround_map; 850 break; 851 case 2: 852 strscpy(pcm->name, "EMU10K1X Center/LFE"); 853 map = clfe_map; 854 break; 855 } 856 emu->pcm = pcm; 857 858 snd_pcm_set_managed_buffer_all(pcm, SNDRV_DMA_TYPE_DEV, 859 &emu->pci->dev, 32*1024, 32*1024); 860 861 return snd_pcm_add_chmap_ctls(pcm, SNDRV_PCM_STREAM_PLAYBACK, map, 2, 862 1 << 2, NULL); 863 } 864 865 static int snd_emu10k1x_create(struct snd_card *card, 866 struct pci_dev *pci) 867 { 868 struct emu10k1x *chip = card->private_data; 869 int err; 870 int ch; 871 872 err = pcim_enable_device(pci); 873 if (err < 0) 874 return err; 875 876 if (dma_set_mask_and_coherent(&pci->dev, DMA_BIT_MASK(28)) < 0) { 877 dev_err(card->dev, "error to set 28bit mask DMA\n"); 878 return -ENXIO; 879 } 880 881 chip->card = card; 882 chip->pci = pci; 883 chip->irq = -1; 884 885 spin_lock_init(&chip->emu_lock); 886 spin_lock_init(&chip->voice_lock); 887 888 err = pcim_request_all_regions(pci, "EMU10K1X"); 889 if (err < 0) 890 return err; 891 chip->port = pci_resource_start(pci, 0); 892 893 if (devm_request_irq(&pci->dev, pci->irq, snd_emu10k1x_interrupt, 894 IRQF_SHARED, KBUILD_MODNAME, chip)) { 895 dev_err(card->dev, "cannot grab irq %d\n", pci->irq); 896 return -EBUSY; 897 } 898 chip->irq = pci->irq; 899 card->sync_irq = chip->irq; 900 card->private_free = snd_emu10k1x_free; 901 902 chip->dma_buffer = snd_devm_alloc_pages(&pci->dev, SNDRV_DMA_TYPE_DEV, 903 4 * 1024); 904 if (!chip->dma_buffer) 905 return -ENOMEM; 906 907 pci_set_master(pci); 908 /* read revision & serial */ 909 chip->revision = pci->revision; 910 pci_read_config_dword(pci, PCI_SUBSYSTEM_VENDOR_ID, &chip->serial); 911 pci_read_config_word(pci, PCI_SUBSYSTEM_ID, &chip->model); 912 dev_info(card->dev, "Model %04x Rev %08x Serial %08x\n", chip->model, 913 chip->revision, chip->serial); 914 915 outl(0, chip->port + INTE); 916 917 for(ch = 0; ch < 3; ch++) { 918 chip->voices[ch].emu = chip; 919 chip->voices[ch].number = ch; 920 } 921 922 /* 923 * Init to 0x02109204 : 924 * Clock accuracy = 0 (1000ppm) 925 * Sample Rate = 2 (48kHz) 926 * Audio Channel = 1 (Left of 2) 927 * Source Number = 0 (Unspecified) 928 * Generation Status = 1 (Original for Cat Code 12) 929 * Cat Code = 12 (Digital Signal Mixer) 930 * Mode = 0 (Mode 0) 931 * Emphasis = 0 (None) 932 * CP = 1 (Copyright unasserted) 933 * AN = 0 (Audio data) 934 * P = 0 (Consumer) 935 */ 936 snd_emu10k1x_ptr_write(chip, SPCS0, 0, 937 chip->spdif_bits[0] = 938 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 | 939 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | 940 SPCS_GENERATIONSTATUS | 0x00001200 | 941 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT); 942 snd_emu10k1x_ptr_write(chip, SPCS1, 0, 943 chip->spdif_bits[1] = 944 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 | 945 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | 946 SPCS_GENERATIONSTATUS | 0x00001200 | 947 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT); 948 snd_emu10k1x_ptr_write(chip, SPCS2, 0, 949 chip->spdif_bits[2] = 950 SPCS_CLKACCY_1000PPM | SPCS_SAMPLERATE_48 | 951 SPCS_CHANNELNUM_LEFT | SPCS_SOURCENUM_UNSPEC | 952 SPCS_GENERATIONSTATUS | 0x00001200 | 953 0x00000000 | SPCS_EMPHASIS_NONE | SPCS_COPYRIGHT); 954 955 snd_emu10k1x_ptr_write(chip, SPDIF_SELECT, 0, 0x700); // disable SPDIF 956 snd_emu10k1x_ptr_write(chip, ROUTING, 0, 0x1003F); // routing 957 snd_emu10k1x_gpio_write(chip, 0x1080); // analog mode 958 959 outl(HCFG_LOCKSOUNDCACHE|HCFG_AUDIOENABLE, chip->port+HCFG); 960 961 return 0; 962 } 963 964 static void snd_emu10k1x_proc_reg_read(struct snd_info_entry *entry, 965 struct snd_info_buffer *buffer) 966 { 967 struct emu10k1x *emu = entry->private_data; 968 unsigned long value,value1,value2; 969 unsigned long flags; 970 int i; 971 972 snd_iprintf(buffer, "Registers:\n\n"); 973 for(i = 0; i < 0x20; i+=4) { 974 spin_lock_irqsave(&emu->emu_lock, flags); 975 value = inl(emu->port + i); 976 spin_unlock_irqrestore(&emu->emu_lock, flags); 977 snd_iprintf(buffer, "Register %02X: %08lX\n", i, value); 978 } 979 snd_iprintf(buffer, "\nRegisters\n\n"); 980 for(i = 0; i <= 0x48; i++) { 981 value = snd_emu10k1x_ptr_read(emu, i, 0); 982 if(i < 0x10 || (i >= 0x20 && i < 0x40)) { 983 value1 = snd_emu10k1x_ptr_read(emu, i, 1); 984 value2 = snd_emu10k1x_ptr_read(emu, i, 2); 985 snd_iprintf(buffer, "%02X: %08lX %08lX %08lX\n", i, value, value1, value2); 986 } else { 987 snd_iprintf(buffer, "%02X: %08lX\n", i, value); 988 } 989 } 990 } 991 992 static void snd_emu10k1x_proc_reg_write(struct snd_info_entry *entry, 993 struct snd_info_buffer *buffer) 994 { 995 struct emu10k1x *emu = entry->private_data; 996 char line[64]; 997 unsigned int reg, channel_id , val; 998 999 while (!snd_info_get_line(buffer, line, sizeof(line))) { 1000 if (sscanf(line, "%x %x %x", ®, &channel_id, &val) != 3) 1001 continue; 1002 1003 if (reg < 0x49 && channel_id <= 2) 1004 snd_emu10k1x_ptr_write(emu, reg, channel_id, val); 1005 } 1006 } 1007 1008 static int snd_emu10k1x_proc_init(struct emu10k1x *emu) 1009 { 1010 snd_card_rw_proc_new(emu->card, "emu10k1x_regs", emu, 1011 snd_emu10k1x_proc_reg_read, 1012 snd_emu10k1x_proc_reg_write); 1013 return 0; 1014 } 1015 1016 #define snd_emu10k1x_shared_spdif_info snd_ctl_boolean_mono_info 1017 1018 static int snd_emu10k1x_shared_spdif_get(struct snd_kcontrol *kcontrol, 1019 struct snd_ctl_elem_value *ucontrol) 1020 { 1021 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol); 1022 1023 ucontrol->value.integer.value[0] = (snd_emu10k1x_ptr_read(emu, SPDIF_SELECT, 0) == 0x700) ? 0 : 1; 1024 1025 return 0; 1026 } 1027 1028 static int snd_emu10k1x_shared_spdif_put(struct snd_kcontrol *kcontrol, 1029 struct snd_ctl_elem_value *ucontrol) 1030 { 1031 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol); 1032 unsigned int val; 1033 1034 val = ucontrol->value.integer.value[0] ; 1035 1036 if (val) { 1037 // enable spdif output 1038 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x000); 1039 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x700); 1040 snd_emu10k1x_gpio_write(emu, 0x1000); 1041 } else { 1042 // disable spdif output 1043 snd_emu10k1x_ptr_write(emu, SPDIF_SELECT, 0, 0x700); 1044 snd_emu10k1x_ptr_write(emu, ROUTING, 0, 0x1003F); 1045 snd_emu10k1x_gpio_write(emu, 0x1080); 1046 } 1047 return 0; 1048 } 1049 1050 static const struct snd_kcontrol_new snd_emu10k1x_shared_spdif = 1051 { 1052 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 1053 .name = "Analog/Digital Output Jack", 1054 .info = snd_emu10k1x_shared_spdif_info, 1055 .get = snd_emu10k1x_shared_spdif_get, 1056 .put = snd_emu10k1x_shared_spdif_put 1057 }; 1058 1059 static int snd_emu10k1x_spdif_info(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo) 1060 { 1061 uinfo->type = SNDRV_CTL_ELEM_TYPE_IEC958; 1062 uinfo->count = 1; 1063 return 0; 1064 } 1065 1066 static int snd_emu10k1x_spdif_get(struct snd_kcontrol *kcontrol, 1067 struct snd_ctl_elem_value *ucontrol) 1068 { 1069 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol); 1070 unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); 1071 1072 ucontrol->value.iec958.status[0] = (emu->spdif_bits[idx] >> 0) & 0xff; 1073 ucontrol->value.iec958.status[1] = (emu->spdif_bits[idx] >> 8) & 0xff; 1074 ucontrol->value.iec958.status[2] = (emu->spdif_bits[idx] >> 16) & 0xff; 1075 ucontrol->value.iec958.status[3] = (emu->spdif_bits[idx] >> 24) & 0xff; 1076 return 0; 1077 } 1078 1079 static int snd_emu10k1x_spdif_get_mask(struct snd_kcontrol *kcontrol, 1080 struct snd_ctl_elem_value *ucontrol) 1081 { 1082 ucontrol->value.iec958.status[0] = 0xff; 1083 ucontrol->value.iec958.status[1] = 0xff; 1084 ucontrol->value.iec958.status[2] = 0xff; 1085 ucontrol->value.iec958.status[3] = 0xff; 1086 return 0; 1087 } 1088 1089 static int snd_emu10k1x_spdif_put(struct snd_kcontrol *kcontrol, 1090 struct snd_ctl_elem_value *ucontrol) 1091 { 1092 struct emu10k1x *emu = snd_kcontrol_chip(kcontrol); 1093 unsigned int idx = snd_ctl_get_ioffidx(kcontrol, &ucontrol->id); 1094 int change; 1095 unsigned int val; 1096 1097 val = (ucontrol->value.iec958.status[0] << 0) | 1098 (ucontrol->value.iec958.status[1] << 8) | 1099 (ucontrol->value.iec958.status[2] << 16) | 1100 (ucontrol->value.iec958.status[3] << 24); 1101 change = val != emu->spdif_bits[idx]; 1102 if (change) { 1103 snd_emu10k1x_ptr_write(emu, SPCS0 + idx, 0, val); 1104 emu->spdif_bits[idx] = val; 1105 } 1106 return change; 1107 } 1108 1109 static const struct snd_kcontrol_new snd_emu10k1x_spdif_mask_control = 1110 { 1111 .access = SNDRV_CTL_ELEM_ACCESS_READ, 1112 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 1113 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,MASK), 1114 .count = 3, 1115 .info = snd_emu10k1x_spdif_info, 1116 .get = snd_emu10k1x_spdif_get_mask 1117 }; 1118 1119 static const struct snd_kcontrol_new snd_emu10k1x_spdif_control = 1120 { 1121 .iface = SNDRV_CTL_ELEM_IFACE_PCM, 1122 .name = SNDRV_CTL_NAME_IEC958("",PLAYBACK,DEFAULT), 1123 .count = 3, 1124 .info = snd_emu10k1x_spdif_info, 1125 .get = snd_emu10k1x_spdif_get, 1126 .put = snd_emu10k1x_spdif_put 1127 }; 1128 1129 static int snd_emu10k1x_mixer(struct emu10k1x *emu) 1130 { 1131 int err; 1132 struct snd_kcontrol *kctl; 1133 struct snd_card *card = emu->card; 1134 1135 kctl = snd_ctl_new1(&snd_emu10k1x_spdif_mask_control, emu); 1136 if (!kctl) 1137 return -ENOMEM; 1138 err = snd_ctl_add(card, kctl); 1139 if (err) 1140 return err; 1141 kctl = snd_ctl_new1(&snd_emu10k1x_shared_spdif, emu); 1142 if (!kctl) 1143 return -ENOMEM; 1144 err = snd_ctl_add(card, kctl); 1145 if (err) 1146 return err; 1147 kctl = snd_ctl_new1(&snd_emu10k1x_spdif_control, emu); 1148 if (!kctl) 1149 return -ENOMEM; 1150 err = snd_ctl_add(card, kctl); 1151 if (err) 1152 return err; 1153 1154 return 0; 1155 } 1156 1157 #define EMU10K1X_MIDI_MODE_INPUT (1<<0) 1158 #define EMU10K1X_MIDI_MODE_OUTPUT (1<<1) 1159 1160 static inline unsigned char mpu401_read(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int idx) 1161 { 1162 return (unsigned char)snd_emu10k1x_ptr_read(emu, mpu->port + idx, 0); 1163 } 1164 1165 static inline void mpu401_write(struct emu10k1x *emu, struct emu10k1x_midi *mpu, int data, int idx) 1166 { 1167 snd_emu10k1x_ptr_write(emu, mpu->port + idx, 0, data); 1168 } 1169 1170 #define mpu401_write_data(emu, mpu, data) mpu401_write(emu, mpu, data, 0) 1171 #define mpu401_write_cmd(emu, mpu, data) mpu401_write(emu, mpu, data, 1) 1172 #define mpu401_read_data(emu, mpu) mpu401_read(emu, mpu, 0) 1173 #define mpu401_read_stat(emu, mpu) mpu401_read(emu, mpu, 1) 1174 1175 #define mpu401_input_avail(emu,mpu) (!(mpu401_read_stat(emu,mpu) & 0x80)) 1176 #define mpu401_output_ready(emu,mpu) (!(mpu401_read_stat(emu,mpu) & 0x40)) 1177 1178 #define MPU401_RESET 0xff 1179 #define MPU401_ENTER_UART 0x3f 1180 #define MPU401_ACK 0xfe 1181 1182 static void mpu401_clear_rx(struct emu10k1x *emu, struct emu10k1x_midi *mpu) 1183 { 1184 int timeout = 100000; 1185 for (; timeout > 0 && mpu401_input_avail(emu, mpu); timeout--) 1186 mpu401_read_data(emu, mpu); 1187 #ifdef CONFIG_SND_DEBUG 1188 if (timeout <= 0) 1189 dev_err(emu->card->dev, 1190 "cmd: clear rx timeout (status = 0x%x)\n", 1191 mpu401_read_stat(emu, mpu)); 1192 #endif 1193 } 1194 1195 /* 1196 1197 */ 1198 1199 static void do_emu10k1x_midi_interrupt(struct emu10k1x *emu, 1200 struct emu10k1x_midi *midi, unsigned int status) 1201 { 1202 unsigned char byte; 1203 1204 if (midi->rmidi == NULL) { 1205 snd_emu10k1x_intr_disable(emu, midi->tx_enable | midi->rx_enable); 1206 return; 1207 } 1208 1209 spin_lock(&midi->input_lock); 1210 if ((status & midi->ipr_rx) && mpu401_input_avail(emu, midi)) { 1211 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) { 1212 mpu401_clear_rx(emu, midi); 1213 } else { 1214 byte = mpu401_read_data(emu, midi); 1215 if (midi->substream_input) 1216 snd_rawmidi_receive(midi->substream_input, &byte, 1); 1217 } 1218 } 1219 spin_unlock(&midi->input_lock); 1220 1221 spin_lock(&midi->output_lock); 1222 if ((status & midi->ipr_tx) && mpu401_output_ready(emu, midi)) { 1223 if (midi->substream_output && 1224 snd_rawmidi_transmit(midi->substream_output, &byte, 1) == 1) { 1225 mpu401_write_data(emu, midi, byte); 1226 } else { 1227 snd_emu10k1x_intr_disable(emu, midi->tx_enable); 1228 } 1229 } 1230 spin_unlock(&midi->output_lock); 1231 } 1232 1233 static void snd_emu10k1x_midi_interrupt(struct emu10k1x *emu, unsigned int status) 1234 { 1235 do_emu10k1x_midi_interrupt(emu, &emu->midi, status); 1236 } 1237 1238 static int snd_emu10k1x_midi_cmd(struct emu10k1x * emu, 1239 struct emu10k1x_midi *midi, unsigned char cmd, int ack) 1240 { 1241 unsigned long flags; 1242 int timeout, ok; 1243 1244 spin_lock_irqsave(&midi->input_lock, flags); 1245 mpu401_write_data(emu, midi, 0x00); 1246 /* mpu401_clear_rx(emu, midi); */ 1247 1248 mpu401_write_cmd(emu, midi, cmd); 1249 if (ack) { 1250 ok = 0; 1251 timeout = 10000; 1252 while (!ok && timeout-- > 0) { 1253 if (mpu401_input_avail(emu, midi)) { 1254 if (mpu401_read_data(emu, midi) == MPU401_ACK) 1255 ok = 1; 1256 } 1257 } 1258 if (!ok && mpu401_read_data(emu, midi) == MPU401_ACK) 1259 ok = 1; 1260 } else { 1261 ok = 1; 1262 } 1263 spin_unlock_irqrestore(&midi->input_lock, flags); 1264 if (!ok) { 1265 dev_err(emu->card->dev, 1266 "midi_cmd: 0x%x failed at 0x%lx (status = 0x%x, data = 0x%x)!!!\n", 1267 cmd, emu->port, 1268 mpu401_read_stat(emu, midi), 1269 mpu401_read_data(emu, midi)); 1270 return 1; 1271 } 1272 return 0; 1273 } 1274 1275 static int snd_emu10k1x_midi_input_open(struct snd_rawmidi_substream *substream) 1276 { 1277 struct emu10k1x *emu; 1278 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1279 unsigned long flags; 1280 1281 emu = midi->emu; 1282 if (snd_BUG_ON(!emu)) 1283 return -ENXIO; 1284 spin_lock_irqsave(&midi->open_lock, flags); 1285 midi->midi_mode |= EMU10K1X_MIDI_MODE_INPUT; 1286 midi->substream_input = substream; 1287 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) { 1288 spin_unlock_irqrestore(&midi->open_lock, flags); 1289 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1)) 1290 goto error_out; 1291 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1)) 1292 goto error_out; 1293 } else { 1294 spin_unlock_irqrestore(&midi->open_lock, flags); 1295 } 1296 return 0; 1297 1298 error_out: 1299 return -EIO; 1300 } 1301 1302 static int snd_emu10k1x_midi_output_open(struct snd_rawmidi_substream *substream) 1303 { 1304 struct emu10k1x *emu; 1305 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1306 unsigned long flags; 1307 1308 emu = midi->emu; 1309 if (snd_BUG_ON(!emu)) 1310 return -ENXIO; 1311 spin_lock_irqsave(&midi->open_lock, flags); 1312 midi->midi_mode |= EMU10K1X_MIDI_MODE_OUTPUT; 1313 midi->substream_output = substream; 1314 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) { 1315 spin_unlock_irqrestore(&midi->open_lock, flags); 1316 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 1)) 1317 goto error_out; 1318 if (snd_emu10k1x_midi_cmd(emu, midi, MPU401_ENTER_UART, 1)) 1319 goto error_out; 1320 } else { 1321 spin_unlock_irqrestore(&midi->open_lock, flags); 1322 } 1323 return 0; 1324 1325 error_out: 1326 return -EIO; 1327 } 1328 1329 static int snd_emu10k1x_midi_input_close(struct snd_rawmidi_substream *substream) 1330 { 1331 struct emu10k1x *emu; 1332 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1333 unsigned long flags; 1334 int err = 0; 1335 1336 emu = midi->emu; 1337 if (snd_BUG_ON(!emu)) 1338 return -ENXIO; 1339 spin_lock_irqsave(&midi->open_lock, flags); 1340 snd_emu10k1x_intr_disable(emu, midi->rx_enable); 1341 midi->midi_mode &= ~EMU10K1X_MIDI_MODE_INPUT; 1342 midi->substream_input = NULL; 1343 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT)) { 1344 spin_unlock_irqrestore(&midi->open_lock, flags); 1345 err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0); 1346 } else { 1347 spin_unlock_irqrestore(&midi->open_lock, flags); 1348 } 1349 return err; 1350 } 1351 1352 static int snd_emu10k1x_midi_output_close(struct snd_rawmidi_substream *substream) 1353 { 1354 struct emu10k1x *emu; 1355 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1356 unsigned long flags; 1357 int err = 0; 1358 1359 emu = midi->emu; 1360 if (snd_BUG_ON(!emu)) 1361 return -ENXIO; 1362 spin_lock_irqsave(&midi->open_lock, flags); 1363 snd_emu10k1x_intr_disable(emu, midi->tx_enable); 1364 midi->midi_mode &= ~EMU10K1X_MIDI_MODE_OUTPUT; 1365 midi->substream_output = NULL; 1366 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_INPUT)) { 1367 spin_unlock_irqrestore(&midi->open_lock, flags); 1368 err = snd_emu10k1x_midi_cmd(emu, midi, MPU401_RESET, 0); 1369 } else { 1370 spin_unlock_irqrestore(&midi->open_lock, flags); 1371 } 1372 return err; 1373 } 1374 1375 static void snd_emu10k1x_midi_input_trigger(struct snd_rawmidi_substream *substream, int up) 1376 { 1377 struct emu10k1x *emu; 1378 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1379 emu = midi->emu; 1380 if (snd_BUG_ON(!emu)) 1381 return; 1382 1383 if (up) 1384 snd_emu10k1x_intr_enable(emu, midi->rx_enable); 1385 else 1386 snd_emu10k1x_intr_disable(emu, midi->rx_enable); 1387 } 1388 1389 static void snd_emu10k1x_midi_output_trigger(struct snd_rawmidi_substream *substream, int up) 1390 { 1391 struct emu10k1x *emu; 1392 struct emu10k1x_midi *midi = substream->rmidi->private_data; 1393 unsigned long flags; 1394 1395 emu = midi->emu; 1396 if (snd_BUG_ON(!emu)) 1397 return; 1398 1399 if (up) { 1400 int max = 4; 1401 unsigned char byte; 1402 1403 /* try to send some amount of bytes here before interrupts */ 1404 spin_lock_irqsave(&midi->output_lock, flags); 1405 while (max > 0) { 1406 if (mpu401_output_ready(emu, midi)) { 1407 if (!(midi->midi_mode & EMU10K1X_MIDI_MODE_OUTPUT) || 1408 snd_rawmidi_transmit(substream, &byte, 1) != 1) { 1409 /* no more data */ 1410 spin_unlock_irqrestore(&midi->output_lock, flags); 1411 return; 1412 } 1413 mpu401_write_data(emu, midi, byte); 1414 max--; 1415 } else { 1416 break; 1417 } 1418 } 1419 spin_unlock_irqrestore(&midi->output_lock, flags); 1420 snd_emu10k1x_intr_enable(emu, midi->tx_enable); 1421 } else { 1422 snd_emu10k1x_intr_disable(emu, midi->tx_enable); 1423 } 1424 } 1425 1426 /* 1427 1428 */ 1429 1430 static const struct snd_rawmidi_ops snd_emu10k1x_midi_output = 1431 { 1432 .open = snd_emu10k1x_midi_output_open, 1433 .close = snd_emu10k1x_midi_output_close, 1434 .trigger = snd_emu10k1x_midi_output_trigger, 1435 }; 1436 1437 static const struct snd_rawmidi_ops snd_emu10k1x_midi_input = 1438 { 1439 .open = snd_emu10k1x_midi_input_open, 1440 .close = snd_emu10k1x_midi_input_close, 1441 .trigger = snd_emu10k1x_midi_input_trigger, 1442 }; 1443 1444 static void snd_emu10k1x_midi_free(struct snd_rawmidi *rmidi) 1445 { 1446 struct emu10k1x_midi *midi = rmidi->private_data; 1447 midi->interrupt = NULL; 1448 midi->rmidi = NULL; 1449 } 1450 1451 static int emu10k1x_midi_init(struct emu10k1x *emu, 1452 struct emu10k1x_midi *midi, int device, 1453 char *name) 1454 { 1455 struct snd_rawmidi *rmidi; 1456 int err; 1457 1458 err = snd_rawmidi_new(emu->card, name, device, 1, 1, &rmidi); 1459 if (err < 0) 1460 return err; 1461 midi->emu = emu; 1462 spin_lock_init(&midi->open_lock); 1463 spin_lock_init(&midi->input_lock); 1464 spin_lock_init(&midi->output_lock); 1465 strscpy(rmidi->name, name); 1466 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_emu10k1x_midi_output); 1467 snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_emu10k1x_midi_input); 1468 rmidi->info_flags |= SNDRV_RAWMIDI_INFO_OUTPUT | 1469 SNDRV_RAWMIDI_INFO_INPUT | 1470 SNDRV_RAWMIDI_INFO_DUPLEX; 1471 rmidi->private_data = midi; 1472 rmidi->private_free = snd_emu10k1x_midi_free; 1473 midi->rmidi = rmidi; 1474 return 0; 1475 } 1476 1477 static int snd_emu10k1x_midi(struct emu10k1x *emu) 1478 { 1479 struct emu10k1x_midi *midi = &emu->midi; 1480 int err; 1481 1482 err = emu10k1x_midi_init(emu, midi, 0, "EMU10K1X MPU-401 (UART)"); 1483 if (err < 0) 1484 return err; 1485 1486 midi->tx_enable = INTE_MIDITXENABLE; 1487 midi->rx_enable = INTE_MIDIRXENABLE; 1488 midi->port = MUDATA; 1489 midi->ipr_tx = IPR_MIDITRANSBUFEMPTY; 1490 midi->ipr_rx = IPR_MIDIRECVBUFEMPTY; 1491 midi->interrupt = snd_emu10k1x_midi_interrupt; 1492 return 0; 1493 } 1494 1495 static int __snd_emu10k1x_probe(struct pci_dev *pci, 1496 const struct pci_device_id *pci_id) 1497 { 1498 static int dev; 1499 struct snd_card *card; 1500 struct emu10k1x *chip; 1501 int err; 1502 1503 if (dev >= SNDRV_CARDS) 1504 return -ENODEV; 1505 if (!enable[dev]) { 1506 dev++; 1507 return -ENOENT; 1508 } 1509 1510 err = snd_devm_card_new(&pci->dev, index[dev], id[dev], THIS_MODULE, 1511 sizeof(*chip), &card); 1512 if (err < 0) 1513 return err; 1514 chip = card->private_data; 1515 1516 err = snd_emu10k1x_create(card, pci); 1517 if (err < 0) 1518 return err; 1519 1520 err = snd_emu10k1x_pcm(chip, 0); 1521 if (err < 0) 1522 return err; 1523 err = snd_emu10k1x_pcm(chip, 1); 1524 if (err < 0) 1525 return err; 1526 err = snd_emu10k1x_pcm(chip, 2); 1527 if (err < 0) 1528 return err; 1529 1530 err = snd_emu10k1x_ac97(chip); 1531 if (err < 0) 1532 return err; 1533 1534 err = snd_emu10k1x_mixer(chip); 1535 if (err < 0) 1536 return err; 1537 1538 err = snd_emu10k1x_midi(chip); 1539 if (err < 0) 1540 return err; 1541 1542 snd_emu10k1x_proc_init(chip); 1543 1544 strscpy(card->driver, "EMU10K1X"); 1545 strscpy(card->shortname, "Dell Sound Blaster Live!"); 1546 sprintf(card->longname, "%s at 0x%lx irq %i", 1547 card->shortname, chip->port, chip->irq); 1548 1549 err = snd_card_register(card); 1550 if (err < 0) 1551 return err; 1552 1553 pci_set_drvdata(pci, card); 1554 dev++; 1555 return 0; 1556 } 1557 1558 static int snd_emu10k1x_probe(struct pci_dev *pci, 1559 const struct pci_device_id *pci_id) 1560 { 1561 return snd_card_free_on_error(&pci->dev, __snd_emu10k1x_probe(pci, pci_id)); 1562 } 1563 1564 // PCI IDs 1565 static const struct pci_device_id snd_emu10k1x_ids[] = { 1566 { PCI_VDEVICE(CREATIVE, 0x0006), 0 }, /* Dell OEM version (EMU10K1) */ 1567 { 0, } 1568 }; 1569 MODULE_DEVICE_TABLE(pci, snd_emu10k1x_ids); 1570 1571 // pci_driver definition 1572 static struct pci_driver emu10k1x_driver = { 1573 .name = KBUILD_MODNAME, 1574 .id_table = snd_emu10k1x_ids, 1575 .probe = snd_emu10k1x_probe, 1576 }; 1577 1578 module_pci_driver(emu10k1x_driver); 1579