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 28 static char *opt_coax_texts[2] = { "Optical", "Coax" }; 29 static char *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 */ 35 static const struct { 36 u8 type; 37 u8 reg; 38 u8 value; 39 } 40 init_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 52 static const int rates_altsetting[] = { 1, 1, 2, 2, 3, 3 }; 53 /* values to write to soundcard register for all samplerates */ 54 static const u16 rates_6fire_vl[] = {0x00, 0x01, 0x00, 0x01, 0x00, 0x01}; 55 static const u16 rates_6fire_vh[] = {0x11, 0x11, 0x10, 0x10, 0x00, 0x00}; 56 57 static DECLARE_TLV_DB_MINMAX(tlv_output, -9000, 0); 58 static DECLARE_TLV_DB_MINMAX(tlv_input, -1500, 1500); 59 60 enum { 61 DIGITAL_THRU_ONLY_SAMPLERATE = 3 62 }; 63 64 static 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 78 static 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 86 static 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 } 99 100 static 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 } 108 109 static 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 } 117 118 static 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 } 139 140 static 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 } 163 164 static 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 } 178 179 static 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 } 188 189 static 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 } 218 219 static 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 } 235 236 static 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 } 262 263 static 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 } 282 283 static 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 } 292 293 static 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 } 315 316 static 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 } 326 327 static int usb6fire_control_line_phono_info(struct snd_kcontrol *kcontrol, 328 struct snd_ctl_elem_info *uinfo) 329 { 330 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 331 uinfo->count = 1; 332 uinfo->value.enumerated.items = 2; 333 if (uinfo->value.enumerated.item > 1) 334 uinfo->value.enumerated.item = 1; 335 strcpy(uinfo->value.enumerated.name, 336 line_phono_texts[uinfo->value.enumerated.item]); 337 return 0; 338 } 339 340 static int usb6fire_control_line_phono_put(struct snd_kcontrol *kcontrol, 341 struct snd_ctl_elem_value *ucontrol) 342 { 343 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 344 int changed = 0; 345 if (rt->line_phono_switch != ucontrol->value.integer.value[0]) { 346 rt->line_phono_switch = ucontrol->value.integer.value[0]; 347 usb6fire_control_line_phono_update(rt); 348 changed = 1; 349 } 350 return changed; 351 } 352 353 static int usb6fire_control_line_phono_get(struct snd_kcontrol *kcontrol, 354 struct snd_ctl_elem_value *ucontrol) 355 { 356 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 357 ucontrol->value.integer.value[0] = rt->line_phono_switch; 358 return 0; 359 } 360 361 static int usb6fire_control_opt_coax_info(struct snd_kcontrol *kcontrol, 362 struct snd_ctl_elem_info *uinfo) 363 { 364 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 365 uinfo->count = 1; 366 uinfo->value.enumerated.items = 2; 367 if (uinfo->value.enumerated.item > 1) 368 uinfo->value.enumerated.item = 1; 369 strcpy(uinfo->value.enumerated.name, 370 opt_coax_texts[uinfo->value.enumerated.item]); 371 return 0; 372 } 373 374 static int usb6fire_control_opt_coax_put(struct snd_kcontrol *kcontrol, 375 struct snd_ctl_elem_value *ucontrol) 376 { 377 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 378 int changed = 0; 379 380 if (rt->opt_coax_switch != ucontrol->value.enumerated.item[0]) { 381 rt->opt_coax_switch = ucontrol->value.enumerated.item[0]; 382 usb6fire_control_opt_coax_update(rt); 383 changed = 1; 384 } 385 return changed; 386 } 387 388 static int usb6fire_control_opt_coax_get(struct snd_kcontrol *kcontrol, 389 struct snd_ctl_elem_value *ucontrol) 390 { 391 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 392 ucontrol->value.enumerated.item[0] = rt->opt_coax_switch; 393 return 0; 394 } 395 396 static int usb6fire_control_digital_thru_put(struct snd_kcontrol *kcontrol, 397 struct snd_ctl_elem_value *ucontrol) 398 { 399 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 400 int changed = 0; 401 402 if (rt->digital_thru_switch != ucontrol->value.integer.value[0]) { 403 rt->digital_thru_switch = ucontrol->value.integer.value[0]; 404 usb6fire_control_streaming_update(rt); 405 changed = 1; 406 } 407 return changed; 408 } 409 410 static int usb6fire_control_digital_thru_get(struct snd_kcontrol *kcontrol, 411 struct snd_ctl_elem_value *ucontrol) 412 { 413 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 414 ucontrol->value.integer.value[0] = rt->digital_thru_switch; 415 return 0; 416 } 417 418 static struct snd_kcontrol_new vol_elements[] = { 419 { 420 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 421 .name = "Analog Playback Volume", 422 .index = 0, 423 .private_value = 0, 424 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | 425 SNDRV_CTL_ELEM_ACCESS_TLV_READ, 426 .info = usb6fire_control_output_vol_info, 427 .get = usb6fire_control_output_vol_get, 428 .put = usb6fire_control_output_vol_put, 429 .tlv = { .p = tlv_output } 430 }, 431 { 432 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 433 .name = "Analog Playback Volume", 434 .index = 1, 435 .private_value = 2, 436 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | 437 SNDRV_CTL_ELEM_ACCESS_TLV_READ, 438 .info = usb6fire_control_output_vol_info, 439 .get = usb6fire_control_output_vol_get, 440 .put = usb6fire_control_output_vol_put, 441 .tlv = { .p = tlv_output } 442 }, 443 { 444 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 445 .name = "Analog Playback Volume", 446 .index = 2, 447 .private_value = 4, 448 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | 449 SNDRV_CTL_ELEM_ACCESS_TLV_READ, 450 .info = usb6fire_control_output_vol_info, 451 .get = usb6fire_control_output_vol_get, 452 .put = usb6fire_control_output_vol_put, 453 .tlv = { .p = tlv_output } 454 }, 455 {} 456 }; 457 458 static struct snd_kcontrol_new mute_elements[] = { 459 { 460 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 461 .name = "Analog Playback Switch", 462 .index = 0, 463 .private_value = 0, 464 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 465 .info = snd_ctl_boolean_stereo_info, 466 .get = usb6fire_control_output_mute_get, 467 .put = usb6fire_control_output_mute_put, 468 }, 469 { 470 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 471 .name = "Analog Playback Switch", 472 .index = 1, 473 .private_value = 2, 474 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 475 .info = snd_ctl_boolean_stereo_info, 476 .get = usb6fire_control_output_mute_get, 477 .put = usb6fire_control_output_mute_put, 478 }, 479 { 480 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 481 .name = "Analog Playback Switch", 482 .index = 2, 483 .private_value = 4, 484 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 485 .info = snd_ctl_boolean_stereo_info, 486 .get = usb6fire_control_output_mute_get, 487 .put = usb6fire_control_output_mute_put, 488 }, 489 {} 490 }; 491 492 static struct snd_kcontrol_new elements[] = { 493 { 494 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 495 .name = "Line/Phono Capture Route", 496 .index = 0, 497 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 498 .info = usb6fire_control_line_phono_info, 499 .get = usb6fire_control_line_phono_get, 500 .put = usb6fire_control_line_phono_put 501 }, 502 { 503 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 504 .name = "Opt/Coax Capture Route", 505 .index = 0, 506 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 507 .info = usb6fire_control_opt_coax_info, 508 .get = usb6fire_control_opt_coax_get, 509 .put = usb6fire_control_opt_coax_put 510 }, 511 { 512 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 513 .name = "Digital Thru Playback Route", 514 .index = 0, 515 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 516 .info = snd_ctl_boolean_mono_info, 517 .get = usb6fire_control_digital_thru_get, 518 .put = usb6fire_control_digital_thru_put 519 }, 520 { 521 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 522 .name = "Analog Capture Volume", 523 .index = 0, 524 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | 525 SNDRV_CTL_ELEM_ACCESS_TLV_READ, 526 .info = usb6fire_control_input_vol_info, 527 .get = usb6fire_control_input_vol_get, 528 .put = usb6fire_control_input_vol_put, 529 .tlv = { .p = tlv_input } 530 }, 531 {} 532 }; 533 534 static int usb6fire_control_add_virtual( 535 struct control_runtime *rt, 536 struct snd_card *card, 537 char *name, 538 struct snd_kcontrol_new *elems) 539 { 540 int ret; 541 int i; 542 struct snd_kcontrol *vmaster = 543 snd_ctl_make_virtual_master(name, tlv_output); 544 struct snd_kcontrol *control; 545 546 if (!vmaster) 547 return -ENOMEM; 548 ret = snd_ctl_add(card, vmaster); 549 if (ret < 0) 550 return ret; 551 552 i = 0; 553 while (elems[i].name) { 554 control = snd_ctl_new1(&elems[i], rt); 555 if (!control) 556 return -ENOMEM; 557 ret = snd_ctl_add(card, control); 558 if (ret < 0) 559 return ret; 560 ret = snd_ctl_add_slave(vmaster, control); 561 if (ret < 0) 562 return ret; 563 i++; 564 } 565 return 0; 566 } 567 568 int usb6fire_control_init(struct sfire_chip *chip) 569 { 570 int i; 571 int ret; 572 struct control_runtime *rt = kzalloc(sizeof(struct control_runtime), 573 GFP_KERNEL); 574 struct comm_runtime *comm_rt = chip->comm; 575 576 if (!rt) 577 return -ENOMEM; 578 579 rt->chip = chip; 580 rt->update_streaming = usb6fire_control_streaming_update; 581 rt->set_rate = usb6fire_control_set_rate; 582 rt->set_channels = usb6fire_control_set_channels; 583 584 i = 0; 585 while (init_data[i].type) { 586 comm_rt->write8(comm_rt, init_data[i].type, init_data[i].reg, 587 init_data[i].value); 588 i++; 589 } 590 591 usb6fire_control_opt_coax_update(rt); 592 usb6fire_control_line_phono_update(rt); 593 usb6fire_control_output_vol_update(rt); 594 usb6fire_control_output_mute_update(rt); 595 usb6fire_control_input_vol_update(rt); 596 usb6fire_control_streaming_update(rt); 597 598 ret = usb6fire_control_add_virtual(rt, chip->card, 599 "Master Playback Volume", vol_elements); 600 if (ret) { 601 dev_err(&chip->dev->dev, "cannot add control.\n"); 602 kfree(rt); 603 return ret; 604 } 605 ret = usb6fire_control_add_virtual(rt, chip->card, 606 "Master Playback Switch", mute_elements); 607 if (ret) { 608 dev_err(&chip->dev->dev, "cannot add control.\n"); 609 kfree(rt); 610 return ret; 611 } 612 613 i = 0; 614 while (elements[i].name) { 615 ret = snd_ctl_add(chip->card, snd_ctl_new1(&elements[i], rt)); 616 if (ret < 0) { 617 kfree(rt); 618 dev_err(&chip->dev->dev, "cannot add control.\n"); 619 return ret; 620 } 621 i++; 622 } 623 624 chip->control = rt; 625 return 0; 626 } 627 628 void usb6fire_control_abort(struct sfire_chip *chip) 629 {} 630 631 void usb6fire_control_destroy(struct sfire_chip *chip) 632 { 633 kfree(chip->control); 634 chip->control = NULL; 635 } 636