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 snd_printk(KERN_ERR PREFIX "Invalid channel in volume control."); 198 return -EINVAL; 199 } 200 201 if (rt->output_vol[ch] != ucontrol->value.integer.value[0]) { 202 rt->output_vol[ch] = ucontrol->value.integer.value[0]; 203 rt->ovol_updated &= ~(1 << ch); 204 changed = 1; 205 } 206 if (rt->output_vol[ch + 1] != ucontrol->value.integer.value[1]) { 207 rt->output_vol[ch + 1] = ucontrol->value.integer.value[1]; 208 rt->ovol_updated &= ~(2 << ch); 209 changed = 1; 210 } 211 212 if (changed) 213 usb6fire_control_output_vol_update(rt); 214 215 return changed; 216 } 217 218 static int usb6fire_control_output_vol_get(struct snd_kcontrol *kcontrol, 219 struct snd_ctl_elem_value *ucontrol) 220 { 221 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 222 unsigned int ch = kcontrol->private_value; 223 224 if (ch > 4) { 225 snd_printk(KERN_ERR PREFIX "Invalid channel in volume control."); 226 return -EINVAL; 227 } 228 229 ucontrol->value.integer.value[0] = rt->output_vol[ch]; 230 ucontrol->value.integer.value[1] = rt->output_vol[ch + 1]; 231 return 0; 232 } 233 234 static int usb6fire_control_output_mute_put(struct snd_kcontrol *kcontrol, 235 struct snd_ctl_elem_value *ucontrol) 236 { 237 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 238 unsigned int ch = kcontrol->private_value; 239 u8 old = rt->output_mute; 240 u8 value = 0; 241 242 if (ch > 4) { 243 snd_printk(KERN_ERR PREFIX "Invalid channel in volume control."); 244 return -EINVAL; 245 } 246 247 rt->output_mute &= ~(3 << ch); 248 if (ucontrol->value.integer.value[0]) 249 value |= 1; 250 if (ucontrol->value.integer.value[1]) 251 value |= 2; 252 rt->output_mute |= value << ch; 253 254 if (rt->output_mute != old) 255 usb6fire_control_output_mute_update(rt); 256 257 return rt->output_mute != old; 258 } 259 260 static int usb6fire_control_output_mute_get(struct snd_kcontrol *kcontrol, 261 struct snd_ctl_elem_value *ucontrol) 262 { 263 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 264 unsigned int ch = kcontrol->private_value; 265 u8 value = rt->output_mute >> ch; 266 267 if (ch > 4) { 268 snd_printk(KERN_ERR PREFIX "Invalid channel in volume control."); 269 return -EINVAL; 270 } 271 272 ucontrol->value.integer.value[0] = 1 & value; 273 value >>= 1; 274 ucontrol->value.integer.value[1] = 1 & value; 275 276 return 0; 277 } 278 279 static int usb6fire_control_input_vol_info(struct snd_kcontrol *kcontrol, 280 struct snd_ctl_elem_info *uinfo) 281 { 282 uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; 283 uinfo->count = 2; 284 uinfo->value.integer.min = 0; 285 uinfo->value.integer.max = 30; 286 return 0; 287 } 288 289 static int usb6fire_control_input_vol_put(struct snd_kcontrol *kcontrol, 290 struct snd_ctl_elem_value *ucontrol) 291 { 292 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 293 int changed = 0; 294 295 if (rt->input_vol[0] != ucontrol->value.integer.value[0]) { 296 rt->input_vol[0] = ucontrol->value.integer.value[0] - 15; 297 rt->ivol_updated &= ~(1 << 0); 298 changed = 1; 299 } 300 if (rt->input_vol[1] != ucontrol->value.integer.value[1]) { 301 rt->input_vol[1] = ucontrol->value.integer.value[1] - 15; 302 rt->ivol_updated &= ~(1 << 1); 303 changed = 1; 304 } 305 306 if (changed) 307 usb6fire_control_input_vol_update(rt); 308 309 return changed; 310 } 311 312 static int usb6fire_control_input_vol_get(struct snd_kcontrol *kcontrol, 313 struct snd_ctl_elem_value *ucontrol) 314 { 315 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 316 317 ucontrol->value.integer.value[0] = rt->input_vol[0] + 15; 318 ucontrol->value.integer.value[1] = rt->input_vol[1] + 15; 319 320 return 0; 321 } 322 323 static int usb6fire_control_line_phono_info(struct snd_kcontrol *kcontrol, 324 struct snd_ctl_elem_info *uinfo) 325 { 326 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 327 uinfo->count = 1; 328 uinfo->value.enumerated.items = 2; 329 if (uinfo->value.enumerated.item > 1) 330 uinfo->value.enumerated.item = 1; 331 strcpy(uinfo->value.enumerated.name, 332 line_phono_texts[uinfo->value.enumerated.item]); 333 return 0; 334 } 335 336 static int usb6fire_control_line_phono_put(struct snd_kcontrol *kcontrol, 337 struct snd_ctl_elem_value *ucontrol) 338 { 339 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 340 int changed = 0; 341 if (rt->line_phono_switch != ucontrol->value.integer.value[0]) { 342 rt->line_phono_switch = ucontrol->value.integer.value[0]; 343 usb6fire_control_line_phono_update(rt); 344 changed = 1; 345 } 346 return changed; 347 } 348 349 static int usb6fire_control_line_phono_get(struct snd_kcontrol *kcontrol, 350 struct snd_ctl_elem_value *ucontrol) 351 { 352 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 353 ucontrol->value.integer.value[0] = rt->line_phono_switch; 354 return 0; 355 } 356 357 static int usb6fire_control_opt_coax_info(struct snd_kcontrol *kcontrol, 358 struct snd_ctl_elem_info *uinfo) 359 { 360 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; 361 uinfo->count = 1; 362 uinfo->value.enumerated.items = 2; 363 if (uinfo->value.enumerated.item > 1) 364 uinfo->value.enumerated.item = 1; 365 strcpy(uinfo->value.enumerated.name, 366 opt_coax_texts[uinfo->value.enumerated.item]); 367 return 0; 368 } 369 370 static int usb6fire_control_opt_coax_put(struct snd_kcontrol *kcontrol, 371 struct snd_ctl_elem_value *ucontrol) 372 { 373 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 374 int changed = 0; 375 376 if (rt->opt_coax_switch != ucontrol->value.enumerated.item[0]) { 377 rt->opt_coax_switch = ucontrol->value.enumerated.item[0]; 378 usb6fire_control_opt_coax_update(rt); 379 changed = 1; 380 } 381 return changed; 382 } 383 384 static int usb6fire_control_opt_coax_get(struct snd_kcontrol *kcontrol, 385 struct snd_ctl_elem_value *ucontrol) 386 { 387 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 388 ucontrol->value.enumerated.item[0] = rt->opt_coax_switch; 389 return 0; 390 } 391 392 static int usb6fire_control_digital_thru_put(struct snd_kcontrol *kcontrol, 393 struct snd_ctl_elem_value *ucontrol) 394 { 395 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 396 int changed = 0; 397 398 if (rt->digital_thru_switch != ucontrol->value.integer.value[0]) { 399 rt->digital_thru_switch = ucontrol->value.integer.value[0]; 400 usb6fire_control_streaming_update(rt); 401 changed = 1; 402 } 403 return changed; 404 } 405 406 static int usb6fire_control_digital_thru_get(struct snd_kcontrol *kcontrol, 407 struct snd_ctl_elem_value *ucontrol) 408 { 409 struct control_runtime *rt = snd_kcontrol_chip(kcontrol); 410 ucontrol->value.integer.value[0] = rt->digital_thru_switch; 411 return 0; 412 } 413 414 static struct __devinitdata snd_kcontrol_new vol_elements[] = { 415 { 416 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 417 .name = "Analog Playback Volume", 418 .index = 0, 419 .private_value = 0, 420 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | 421 SNDRV_CTL_ELEM_ACCESS_TLV_READ, 422 .info = usb6fire_control_output_vol_info, 423 .get = usb6fire_control_output_vol_get, 424 .put = usb6fire_control_output_vol_put, 425 .tlv = { .p = tlv_output } 426 }, 427 { 428 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 429 .name = "Analog Playback Volume", 430 .index = 1, 431 .private_value = 2, 432 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | 433 SNDRV_CTL_ELEM_ACCESS_TLV_READ, 434 .info = usb6fire_control_output_vol_info, 435 .get = usb6fire_control_output_vol_get, 436 .put = usb6fire_control_output_vol_put, 437 .tlv = { .p = tlv_output } 438 }, 439 { 440 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 441 .name = "Analog Playback Volume", 442 .index = 2, 443 .private_value = 4, 444 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | 445 SNDRV_CTL_ELEM_ACCESS_TLV_READ, 446 .info = usb6fire_control_output_vol_info, 447 .get = usb6fire_control_output_vol_get, 448 .put = usb6fire_control_output_vol_put, 449 .tlv = { .p = tlv_output } 450 }, 451 {} 452 }; 453 454 static struct __devinitdata snd_kcontrol_new mute_elements[] = { 455 { 456 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 457 .name = "Analog Playback Switch", 458 .index = 0, 459 .private_value = 0, 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 = 1, 469 .private_value = 2, 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 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 477 .name = "Analog Playback Switch", 478 .index = 2, 479 .private_value = 4, 480 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 481 .info = snd_ctl_boolean_stereo_info, 482 .get = usb6fire_control_output_mute_get, 483 .put = usb6fire_control_output_mute_put, 484 }, 485 {} 486 }; 487 488 static struct __devinitdata snd_kcontrol_new elements[] = { 489 { 490 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 491 .name = "Line/Phono Capture Route", 492 .index = 0, 493 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 494 .info = usb6fire_control_line_phono_info, 495 .get = usb6fire_control_line_phono_get, 496 .put = usb6fire_control_line_phono_put 497 }, 498 { 499 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 500 .name = "Opt/Coax Capture Route", 501 .index = 0, 502 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 503 .info = usb6fire_control_opt_coax_info, 504 .get = usb6fire_control_opt_coax_get, 505 .put = usb6fire_control_opt_coax_put 506 }, 507 { 508 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 509 .name = "Digital Thru Playback Route", 510 .index = 0, 511 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE, 512 .info = snd_ctl_boolean_mono_info, 513 .get = usb6fire_control_digital_thru_get, 514 .put = usb6fire_control_digital_thru_put 515 }, 516 { 517 .iface = SNDRV_CTL_ELEM_IFACE_MIXER, 518 .name = "Analog Capture Volume", 519 .index = 0, 520 .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | 521 SNDRV_CTL_ELEM_ACCESS_TLV_READ, 522 .info = usb6fire_control_input_vol_info, 523 .get = usb6fire_control_input_vol_get, 524 .put = usb6fire_control_input_vol_put, 525 .tlv = { .p = tlv_input } 526 }, 527 {} 528 }; 529 530 static int usb6fire_control_add_virtual( 531 struct control_runtime *rt, 532 struct snd_card *card, 533 char *name, 534 struct snd_kcontrol_new *elems) 535 { 536 int ret; 537 int i; 538 struct snd_kcontrol *vmaster = 539 snd_ctl_make_virtual_master(name, tlv_output); 540 struct snd_kcontrol *control; 541 542 if (!vmaster) 543 return -ENOMEM; 544 ret = snd_ctl_add(card, vmaster); 545 if (ret < 0) 546 return ret; 547 548 i = 0; 549 while (elems[i].name) { 550 control = snd_ctl_new1(&elems[i], rt); 551 if (!control) 552 return -ENOMEM; 553 ret = snd_ctl_add(card, control); 554 if (ret < 0) 555 return ret; 556 ret = snd_ctl_add_slave(vmaster, control); 557 if (ret < 0) 558 return ret; 559 i++; 560 } 561 return 0; 562 } 563 564 int __devinit usb6fire_control_init(struct sfire_chip *chip) 565 { 566 int i; 567 int ret; 568 struct control_runtime *rt = kzalloc(sizeof(struct control_runtime), 569 GFP_KERNEL); 570 struct comm_runtime *comm_rt = chip->comm; 571 572 if (!rt) 573 return -ENOMEM; 574 575 rt->chip = chip; 576 rt->update_streaming = usb6fire_control_streaming_update; 577 rt->set_rate = usb6fire_control_set_rate; 578 rt->set_channels = usb6fire_control_set_channels; 579 580 i = 0; 581 while (init_data[i].type) { 582 comm_rt->write8(comm_rt, init_data[i].type, init_data[i].reg, 583 init_data[i].value); 584 i++; 585 } 586 587 usb6fire_control_opt_coax_update(rt); 588 usb6fire_control_line_phono_update(rt); 589 usb6fire_control_output_vol_update(rt); 590 usb6fire_control_output_mute_update(rt); 591 usb6fire_control_input_vol_update(rt); 592 usb6fire_control_streaming_update(rt); 593 594 ret = usb6fire_control_add_virtual(rt, chip->card, 595 "Master Playback Volume", vol_elements); 596 if (ret) { 597 snd_printk(KERN_ERR PREFIX "cannot add control.\n"); 598 kfree(rt); 599 return ret; 600 } 601 ret = usb6fire_control_add_virtual(rt, chip->card, 602 "Master Playback Switch", mute_elements); 603 if (ret) { 604 snd_printk(KERN_ERR PREFIX "cannot add control.\n"); 605 kfree(rt); 606 return ret; 607 } 608 609 i = 0; 610 while (elements[i].name) { 611 ret = snd_ctl_add(chip->card, snd_ctl_new1(&elements[i], rt)); 612 if (ret < 0) { 613 kfree(rt); 614 snd_printk(KERN_ERR PREFIX "cannot add control.\n"); 615 return ret; 616 } 617 i++; 618 } 619 620 chip->control = rt; 621 return 0; 622 } 623 624 void usb6fire_control_abort(struct sfire_chip *chip) 625 {} 626 627 void usb6fire_control_destroy(struct sfire_chip *chip) 628 { 629 kfree(chip->control); 630 chip->control = NULL; 631 } 632