1/* 2 * Linux driver for TerraTec DMX 6Fire USB 3 * 4 * Mixer control 5 * 6 * Author: Torsten Schenk <torsten.schenk@zoho.com> 7 * Created: Jan 01, 2011 8 * Copyright: (C) Torsten Schenk 9 * 10 * Thanks to: 11 * - Holger Ruckdeschel: he found out how to control individual channel 12 * volumes and introduced mute switch 13 * 14 * This program is free software; you can redistribute it and/or modify 15 * it under the terms of the GNU General Public License as published by 16 * the Free Software Foundation; either version 2 of the License, or 17 * (at your option) any later version. 18 */ 19 20#include <linux/interrupt.h> 21#include <sound/control.h> 22#include <sound/tlv.h> 23 24#include "control.h" 25#include "comm.h" 26#include "chip.h" 27 28static const char * const opt_coax_texts[2] = { "Optical", "Coax" }; 29static const char * const line_phono_texts[2] = { "Line", "Phono" }; 30 31/* 32 * data that needs to be sent to device. sets up card internal stuff. 33 * values dumped from windows driver and filtered by trial'n'error. 34 */ 35static const struct { 36 u8 type; 37 u8 reg; 38 u8 value; 39} 40init_data[] = { 41 { 0x22, 0x00, 0x00 }, { 0x20, 0x00, 0x08 }, { 0x22, 0x01, 0x01 }, 42 { 0x20, 0x01, 0x08 }, { 0x22, 0x02, 0x00 }, { 0x20, 0x02, 0x08 }, 43 { 0x22, 0x03, 0x00 }, { 0x20, 0x03, 0x08 }, { 0x22, 0x04, 0x00 }, 44 { 0x20, 0x04, 0x08 }, { 0x22, 0x05, 0x01 }, { 0x20, 0x05, 0x08 }, 45 { 0x22, 0x04, 0x01 }, { 0x12, 0x04, 0x00 }, { 0x12, 0x05, 0x00 }, 46 { 0x12, 0x0d, 0x38 }, { 0x12, 0x21, 0x82 }, { 0x12, 0x22, 0x80 }, 47 { 0x12, 0x23, 0x00 }, { 0x12, 0x06, 0x02 }, { 0x12, 0x03, 0x00 }, 48 { 0x12, 0x02, 0x00 }, { 0x22, 0x03, 0x01 }, 49 { 0 } /* TERMINATING ENTRY */ 50}; 51 52static const int rates_altsetting[] = { 1, 1, 2, 2, 3, 3 }; 53/* values to write to soundcard register for all samplerates */ 54static const u16 rates_6fire_vl[] = {0x00, 0x01, 0x00, 0x01, 0x00, 0x01}; 55static const u16 rates_6fire_vh[] = {0x11, 0x11, 0x10, 0x10, 0x00, 0x00}; 56 57static DECLARE_TLV_DB_MINMAX(tlv_output, -9000, 0); 58static DECLARE_TLV_DB_MINMAX(tlv_input, -1500, 1500); 59 60enum { 61 DIGITAL_THRU_ONLY_SAMPLERATE = 3 62}; 63 64static void usb6fire_control_output_vol_update(struct control_runtime *rt) 65{ 66 struct comm_runtime *comm_rt = rt->chip->comm; 67 int i; 68 69 if (comm_rt) 70 for (i = 0; i < 6; i++) 71 if (!(rt->ovol_updated & (1 << i))) { 72 comm_rt->write8(comm_rt, 0x12, 0x0f + i, 73 180 - rt->output_vol[i]); 74 rt->ovol_updated |= 1 << i; 75 } 76} 77 78static void usb6fire_control_output_mute_update(struct control_runtime *rt) 79{ 80 struct comm_runtime *comm_rt = rt->chip->comm; 81 82 if (comm_rt) 83 comm_rt->write8(comm_rt, 0x12, 0x0e, ~rt->output_mute); 84} 85 86static void usb6fire_control_input_vol_update(struct control_runtime *rt) 87{ 88 struct comm_runtime *comm_rt = rt->chip->comm; 89 int i; 90 91 if (comm_rt) 92 for (i = 0; i < 2; i++) 93 if (!(rt->ivol_updated & (1 << i))) { 94 comm_rt->write8(comm_rt, 0x12, 0x1c + i, 95 rt->input_vol[i] & 0x3f); 96 rt->ivol_updated |= 1 << i; 97 } 98} 99 100static void usb6fire_control_line_phono_update(struct control_runtime *rt) 101{ 102 struct comm_runtime *comm_rt = rt->chip->comm; 103 if (comm_rt) { 104 comm_rt->write8(comm_rt, 0x22, 0x02, rt->line_phono_switch); 105 comm_rt->write8(comm_rt, 0x21, 0x02, rt->line_phono_switch); 106 } 107} 108 109static void usb6fire_control_opt_coax_update(struct control_runtime *rt) 110{ 111 struct comm_runtime *comm_rt = rt->chip->comm; 112 if (comm_rt) { 113 comm_rt->write8(comm_rt, 0x22, 0x00, rt->opt_coax_switch); 114 comm_rt->write8(comm_rt, 0x21, 0x00, rt->opt_coax_switch); 115 } 116} 117 118static int usb6fire_control_set_rate(struct control_runtime *rt, int rate) 119{ 120 int ret; 121 struct usb_device *device = rt->chip->dev; 122 struct comm_runtime *comm_rt = rt->chip->comm; 123 124 if (rate < 0 || rate >= CONTROL_N_RATES) 125 return -EINVAL; 126 127 ret = usb_set_interface(device, 1, rates_altsetting[rate]); 128 if (ret < 0) 129 return ret; 130 131 /* set soundcard clock */ 132 ret = comm_rt->write16(comm_rt, 0x02, 0x01, rates_6fire_vl[rate], 133 rates_6fire_vh[rate]); 134 if (ret < 0) 135 return ret; 136 137 return 0; 138} 139 140static int usb6fire_control_set_channels( 141 struct control_runtime *rt, int n_analog_out, 142 int n_analog_in, bool spdif_out, bool spdif_in) 143{ 144 int ret; 145 struct comm_runtime *comm_rt = rt->chip->comm; 146 147 /* enable analog inputs and outputs 148 * (one bit per stereo-channel) */ 149 ret = comm_rt->write16(comm_rt, 0x02, 0x02, 150 (1 << (n_analog_out / 2)) - 1, 151 (1 << (n_analog_in / 2)) - 1); 152 if (ret < 0) 153 return ret; 154 155 /* disable digital inputs and outputs */ 156 /* TODO: use spdif_x to enable/disable digital channels */ 157 ret = comm_rt->write16(comm_rt, 0x02, 0x03, 0x00, 0x00); 158 if (ret < 0) 159 return ret; 160 161 return 0; 162} 163 164static int usb6fire_control_streaming_update(struct control_runtime *rt) 165{ 166 struct comm_runtime *comm_rt = rt->chip->comm; 167 168 if (comm_rt) { 169 if (!rt->usb_streaming && rt->digital_thru_switch) 170 usb6fire_control_set_rate(rt, 171 DIGITAL_THRU_ONLY_SAMPLERATE); 172 return comm_rt->write16(comm_rt, 0x02, 0x00, 0x00, 173 (rt->usb_streaming ? 0x01 : 0x00) | 174 (rt->digital_thru_switch ? 0x08 : 0x00)); 175 } 176 return -EINVAL; 177} 178 179static int usb6fire_control_output_vol_info(struct snd_kcontrol *kcontrol, 180 struct snd_ctl_elem_info *uinfo) 181{ 182 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 183 uinfo->count = 2; 184 uinfo->value.integer.min = 0; 185 uinfo->value.integer.max = 180; 186 return 0; 187} 188 189static int usb6fire_control_output_vol_put(struct snd_kcontrol *kcontrol, 190 struct snd_ctl_elem_value *ucontrol) 191{ 192 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 193 unsigned int ch = kcontrol->private_value; 194 int changed = 0; 195 196 if (ch > 4) { 197 dev_err(&rt->chip->dev->dev, 198 "Invalid channel in volume control."); 199 return -EINVAL; 200 } 201 202 if (rt->output_vol[ch] != ucontrol->value.integer.value[0]) { 203 rt->output_vol[ch] = ucontrol->value.integer.value[0]; 204 rt->ovol_updated &= ~(1 << ch); 205 changed = 1; 206 } 207 if (rt->output_vol[ch + 1] != ucontrol->value.integer.value[1]) { 208 rt->output_vol[ch + 1] = ucontrol->value.integer.value[1]; 209 rt->ovol_updated &= ~(2 << ch); 210 changed = 1; 211 } 212 213 if (changed) 214 usb6fire_control_output_vol_update(rt); 215 216 return changed; 217} 218 219static int usb6fire_control_output_vol_get(struct snd_kcontrol *kcontrol, 220 struct snd_ctl_elem_value *ucontrol) 221{ 222 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 223 unsigned int ch = kcontrol->private_value; 224 225 if (ch > 4) { 226 dev_err(&rt->chip->dev->dev, 227 "Invalid channel in volume control."); 228 return -EINVAL; 229 } 230 231 ucontrol->value.integer.value[0] = rt->output_vol[ch]; 232 ucontrol->value.integer.value[1] = rt->output_vol[ch + 1]; 233 return 0; 234} 235 236static int usb6fire_control_output_mute_put(struct snd_kcontrol *kcontrol, 237 struct snd_ctl_elem_value *ucontrol) 238{ 239 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 240 unsigned int ch = kcontrol->private_value; 241 u8 old = rt->output_mute; 242 u8 value = 0; 243 244 if (ch > 4) { 245 dev_err(&rt->chip->dev->dev, 246 "Invalid channel in volume control."); 247 return -EINVAL; 248 } 249 250 rt->output_mute &= ~(3 << ch); 251 if (ucontrol->value.integer.value[0]) 252 value |= 1; 253 if (ucontrol->value.integer.value[1]) 254 value |= 2; 255 rt->output_mute |= value << ch; 256 257 if (rt->output_mute != old) 258 usb6fire_control_output_mute_update(rt); 259 260 return rt->output_mute != old; 261} 262 263static int usb6fire_control_output_mute_get(struct snd_kcontrol *kcontrol, 264 struct snd_ctl_elem_value *ucontrol) 265{ 266 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 267 unsigned int ch = kcontrol->private_value; 268 u8 value = rt->output_mute >> ch; 269 270 if (ch > 4) { 271 dev_err(&rt->chip->dev->dev, 272 "Invalid channel in volume control."); 273 return -EINVAL; 274 } 275 276 ucontrol->value.integer.value[0] = 1 & value; 277 value >>= 1; 278 ucontrol->value.integer.value[1] = 1 & value; 279 280 return 0; 281} 282 283static int usb6fire_control_input_vol_info(struct snd_kcontrol *kcontrol, 284 struct snd_ctl_elem_info *uinfo) 285{ 286 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 287 uinfo->count = 2; 288 uinfo->value.integer.min = 0; 289 uinfo->value.integer.max = 30; 290 return 0; 291} 292 293static int usb6fire_control_input_vol_put(struct snd_kcontrol *kcontrol, 294 struct snd_ctl_elem_value *ucontrol) 295{ 296 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 297 int changed = 0; 298 299 if (rt->input_vol[0] != ucontrol->value.integer.value[0]) { 300 rt->input_vol[0] = ucontrol->value.integer.value[0] - 15; 301 rt->ivol_updated &= ~(1 << 0); 302 changed = 1; 303 } 304 if (rt->input_vol[1] != ucontrol->value.integer.value[1]) { 305 rt->input_vol[1] = ucontrol->value.integer.value[1] - 15; 306 rt->ivol_updated &= ~(1 << 1); 307 changed = 1; 308 } 309 310 if (changed) 311 usb6fire_control_input_vol_update(rt); 312 313 return changed; 314} 315 316static int usb6fire_control_input_vol_get(struct snd_kcontrol *kcontrol, 317 struct snd_ctl_elem_value *ucontrol) 318{ 319 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 320 321 ucontrol->value.integer.value[0] = rt->input_vol[0] + 15; 322 ucontrol->value.integer.value[1] = rt->input_vol[1] + 15; 323 324 return 0; 325} 326 327static int usb6fire_control_line_phono_info(struct snd_kcontrol *kcontrol, 328 struct snd_ctl_elem_info *uinfo) 329{ 330 return snd_ctl_enum_info(uinfo, 1, 2, line_phono_texts); 331} 332 333static int usb6fire_control_line_phono_put(struct snd_kcontrol *kcontrol, 334 struct snd_ctl_elem_value *ucontrol) 335{ 336 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 337 int changed = 0; 338 if (rt->line_phono_switch != ucontrol->value.integer.value[0]) { 339 rt->line_phono_switch = ucontrol->value.integer.value[0]; 340 usb6fire_control_line_phono_update(rt); 341 changed = 1; 342 } 343 return changed; 344} 345 346static int usb6fire_control_line_phono_get(struct snd_kcontrol *kcontrol, 347 struct snd_ctl_elem_value *ucontrol) 348{ 349 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 350 ucontrol->value.integer.value[0] = rt->line_phono_switch; 351 return 0; 352} 353 354static int usb6fire_control_opt_coax_info(struct snd_kcontrol *kcontrol, 355 struct snd_ctl_elem_info *uinfo) 356{ 357 return snd_ctl_enum_info(uinfo, 1, 2, opt_coax_texts); 358} 359 360static int usb6fire_control_opt_coax_put(struct snd_kcontrol *kcontrol, 361 struct snd_ctl_elem_value *ucontrol) 362{ 363 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 364 int changed = 0; 365 366 if (rt->opt_coax_switch != ucontrol->value.enumerated.item[0]) { 367 rt->opt_coax_switch = ucontrol->value.enumerated.item[0]; 368 usb6fire_control_opt_coax_update(rt); 369 changed = 1; 370 } 371 return changed; 372} 373 374static int usb6fire_control_opt_coax_get(struct snd_kcontrol *kcontrol, 375 struct snd_ctl_elem_value *ucontrol) 376{ 377 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 378 ucontrol->value.enumerated.item[0] = rt->opt_coax_switch; 379 return 0; 380} 381 382static int usb6fire_control_digital_thru_put(struct snd_kcontrol *kcontrol, 383 struct snd_ctl_elem_value *ucontrol) 384{ 385 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 386 int changed = 0; 387 388 if (rt->digital_thru_switch != ucontrol->value.integer.value[0]) { 389 rt->digital_thru_switch = ucontrol->value.integer.value[0]; 390 usb6fire_control_streaming_update(rt); 391 changed = 1; 392 } 393 return changed; 394} 395 396static int usb6fire_control_digital_thru_get(struct snd_kcontrol *kcontrol, 397 struct snd_ctl_elem_value *ucontrol) 398{ 399 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 400 ucontrol->value.integer.value[0] = rt->digital_thru_switch; 401 return 0; 402} 403 404static struct snd_kcontrol_new vol_elements[] = { 405 { 406 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 407 .name = "Analog Playback Volume", 408 .index = 0, 409 .private_value = 0, 410 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | 411 SNDRV_CTL_ELEM_ACCESS_TLV_READ, 412 .info = usb6fire_control_output_vol_info, 413 .get = usb6fire_control_output_vol_get, 414 .put = usb6fire_control_output_vol_put, 415 .tlv = { .p = tlv_output } 416 }, 417 { 418 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 419 .name = "Analog Playback Volume", 420 .index = 1, 421 .private_value = 2, 422 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | 423 SNDRV_CTL_ELEM_ACCESS_TLV_READ, 424 .info = usb6fire_control_output_vol_info, 425 .get = usb6fire_control_output_vol_get, 426 .put = usb6fire_control_output_vol_put, 427 .tlv = { .p = tlv_output } 428 }, 429 { 430 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 431 .name = "Analog Playback Volume", 432 .index = 2, 433 .private_value = 4, 434 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | 435 SNDRV_CTL_ELEM_ACCESS_TLV_READ, 436 .info = usb6fire_control_output_vol_info, 437 .get = usb6fire_control_output_vol_get, 438 .put = usb6fire_control_output_vol_put, 439 .tlv = { .p = tlv_output } 440 }, 441 {} 442}; 443 444static struct snd_kcontrol_new mute_elements[] = { 445 { 446 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 447 .name = "Analog Playback Switch", 448 .index = 0, 449 .private_value = 0, 450 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 451 .info = snd_ctl_boolean_stereo_info, 452 .get = usb6fire_control_output_mute_get, 453 .put = usb6fire_control_output_mute_put, 454 }, 455 { 456 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 457 .name = "Analog Playback Switch", 458 .index = 1, 459 .private_value = 2, 460 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 461 .info = snd_ctl_boolean_stereo_info, 462 .get = usb6fire_control_output_mute_get, 463 .put = usb6fire_control_output_mute_put, 464 }, 465 { 466 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 467 .name = "Analog Playback Switch", 468 .index = 2, 469 .private_value = 4, 470 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 471 .info = snd_ctl_boolean_stereo_info, 472 .get = usb6fire_control_output_mute_get, 473 .put = usb6fire_control_output_mute_put, 474 }, 475 {} 476}; 477 478static struct snd_kcontrol_new elements[] = { 479 { 480 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 481 .name = "Line/Phono Capture Route", 482 .index = 0, 483 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 484 .info = usb6fire_control_line_phono_info, 485 .get = usb6fire_control_line_phono_get, 486 .put = usb6fire_control_line_phono_put 487 }, 488 { 489 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 490 .name = "Opt/Coax Capture Route", 491 .index = 0, 492 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 493 .info = usb6fire_control_opt_coax_info, 494 .get = usb6fire_control_opt_coax_get, 495 .put = usb6fire_control_opt_coax_put 496 }, 497 { 498 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 499 .name = "Digital Thru Playback Route", 500 .index = 0, 501 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 502 .info = snd_ctl_boolean_mono_info, 503 .get = usb6fire_control_digital_thru_get, 504 .put = usb6fire_control_digital_thru_put 505 }, 506 { 507 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 508 .name = "Analog Capture Volume", 509 .index = 0, 510 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | 511 SNDRV_CTL_ELEM_ACCESS_TLV_READ, 512 .info = usb6fire_control_input_vol_info, 513 .get = usb6fire_control_input_vol_get, 514 .put = usb6fire_control_input_vol_put, 515 .tlv = { .p = tlv_input } 516 }, 517 {} 518}; 519 520static int usb6fire_control_add_virtual( 521 struct control_runtime *rt, 522 struct snd_card *card, 523 char *name, 524 struct snd_kcontrol_new *elems) 525{ 526 int ret; 527 int i; 528 struct snd_kcontrol *vmaster = 529 snd_ctl_make_virtual_master(name, tlv_output); 530 struct snd_kcontrol *control; 531 532 if (!vmaster) 533 return -ENOMEM; 534 ret = snd_ctl_add(card, vmaster); 535 if (ret < 0) 536 return ret; 537 538 i = 0; 539 while (elems[i].name) { 540 control = snd_ctl_new1(&elems[i], rt); 541 if (!control) 542 return -ENOMEM; 543 ret = snd_ctl_add(card, control); 544 if (ret < 0) 545 return ret; 546 ret = snd_ctl_add_slave(vmaster, control); 547 if (ret < 0) 548 return ret; 549 i++; 550 } 551 return 0; 552} 553 554int usb6fire_control_init(struct sfire_chip *chip) 555{ 556 int i; 557 int ret; 558 struct control_runtime *rt = kzalloc(sizeof(struct control_runtime), 559 GFP_KERNEL); 560 struct comm_runtime *comm_rt = chip->comm; 561 562 if (!rt) 563 return -ENOMEM; 564 565 rt->chip = chip; 566 rt->update_streaming = usb6fire_control_streaming_update; 567 rt->set_rate = usb6fire_control_set_rate; 568 rt->set_channels = usb6fire_control_set_channels; 569 570 i = 0; 571 while (init_data[i].type) { 572 comm_rt->write8(comm_rt, init_data[i].type, init_data[i].reg, 573 init_data[i].value); 574 i++; 575 } 576 577 usb6fire_control_opt_coax_update(rt); 578 usb6fire_control_line_phono_update(rt); 579 usb6fire_control_output_vol_update(rt); 580 usb6fire_control_output_mute_update(rt); 581 usb6fire_control_input_vol_update(rt); 582 usb6fire_control_streaming_update(rt); 583 584 ret = usb6fire_control_add_virtual(rt, chip->card, 585 "Master Playback Volume", vol_elements); 586 if (ret) { 587 dev_err(&chip->dev->dev, "cannot add control.\n"); 588 kfree(rt); 589 return ret; 590 } 591 ret = usb6fire_control_add_virtual(rt, chip->card, 592 "Master Playback Switch", mute_elements); 593 if (ret) { 594 dev_err(&chip->dev->dev, "cannot add control.\n"); 595 kfree(rt); 596 return ret; 597 } 598 599 i = 0; 600 while (elements[i].name) { 601 ret = snd_ctl_add(chip->card, snd_ctl_new1(&elements[i], rt)); 602 if (ret < 0) { 603 kfree(rt); 604 dev_err(&chip->dev->dev, "cannot add control.\n"); 605 return ret; 606 } 607 i++; 608 } 609 610 chip->control = rt; 611 return 0; 612} 613 614void usb6fire_control_abort(struct sfire_chip *chip) 615{} 616 617void usb6fire_control_destroy(struct sfire_chip *chip) 618{ 619 kfree(chip->control); 620 chip->control = NULL; 621} 622