release/src-rt-6.x.4708/linux/linux-2.6.36/sound/usb/mixer_quirks.c

   1 /*
   2  *   USB Audio Driver for ALSA
   3  *
   4  *   Quirks and vendor-specific extensions for mixer interfaces
   5  *
   6  *   Copyright (c) 2002 by Takashi Iwai <tiwai@suse.de>
   7  *
   8  *   Many codes borrowed from audio.c by
   9  *          Alan Cox (alan@lxorguk.ukuu.org.uk)
  10  *          Thomas Sailer (sailer@ife.ee.ethz.ch)
  11  *
  12  *
  13  *   This program is free software; you can redistribute it and/or modify
  14  *   it under the terms of the GNU General Public License as published by
  15  *   the Free Software Foundation; either version 2 of the License, or
  16  *   (at your option) any later version.
  17  *
  18  *   This program is distributed in the hope that it will be useful,
  19  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  *   GNU General Public License for more details.
  22  *
  23  *   You should have received a copy of the GNU General Public License
  24  *   along with this program; if not, write to the Free Software
  25  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  26  */
  27
  28 #include <linux/init.h>
  29 #include <linux/slab.h>
  30 #include <linux/usb.h>
  31 #include <linux/usb/audio.h>
  32
  33 #include <sound/core.h>
  34 #include <sound/control.h>
  35 #include <sound/hwdep.h>
  36 #include <sound/info.h>
  37
  38 #include "usbaudio.h"
  39 #include "mixer.h"
  40 #include "mixer_quirks.h"
  41 #include "helper.h"
  42
  43 /*
  44  * Sound Blaster remote control configuration
  45  *
  46  * format of remote control data:
  47  * Extigy:       xx 00
  48  * Audigy 2 NX:  06 80 xx 00 00 00
  49  * Live! 24-bit: 06 80 xx yy 22 83
  50  */
  51 static const struct rc_config {
  52         u32 usb_id;
  53         u8  offset;
  54         u8  length;
  55         u8  packet_length;
  56         u8  min_packet_length; /* minimum accepted length of the URB result */
  57         u8  mute_mixer_id;
  58         u32 mute_code;
  59 } rc_configs[] = {
  60         { USB_ID(0x041e, 0x3000), 0, 1, 2, 1,  18, 0x0013 }, /* Extigy       */
  61         { USB_ID(0x041e, 0x3020), 2, 1, 6, 6,  18, 0x0013 }, /* Audigy 2 NX  */
  62         { USB_ID(0x041e, 0x3040), 2, 2, 6, 6,  2,  0x6e91 }, /* Live! 24-bit */
  63         { USB_ID(0x041e, 0x3048), 2, 2, 6, 6,  2,  0x6e91 }, /* Toshiba SB0500 */
  64 };
  65
  66 static void snd_usb_soundblaster_remote_complete(struct urb *urb)
  67 {
  68         struct usb_mixer_interface *mixer = urb->context;
  69         const struct rc_config *rc = mixer->rc_cfg;
  70         u32 code;
  71
  72         if (urb->status < 0 || urb->actual_length < rc->min_packet_length)
  73                 return;
  74
  75         code = mixer->rc_buffer[rc->offset];
  76         if (rc->length == 2)
  77                 code |= mixer->rc_buffer[rc->offset + 1] << 8;
  78
  79         /* the Mute button actually changes the mixer control */
  80         if (code == rc->mute_code)
  81                 snd_usb_mixer_notify_id(mixer, rc->mute_mixer_id);
  82         mixer->rc_code = code;
  83         wmb();
  84         wake_up(&mixer->rc_waitq);
  85 }
  86
  87 static long snd_usb_sbrc_hwdep_read(struct snd_hwdep *hw, char __user *buf,
  88                                      long count, loff_t *offset)
  89 {
  90         struct usb_mixer_interface *mixer = hw->private_data;
  91         int err;
  92         u32 rc_code;
  93
  94         if (count != 1 && count != 4)
  95                 return -EINVAL;
  96         err = wait_event_interruptible(mixer->rc_waitq,
  97                                        (rc_code = xchg(&mixer->rc_code, 0)) != 0);
  98         if (err == 0) {
  99                 if (count == 1)
 100                         err = put_user(rc_code, buf);
 101                 else
 102                         err = put_user(rc_code, (u32 __user *)buf);
 103         }
 104         return err < 0 ? err : count;
 105 }
 106
 107 static unsigned int snd_usb_sbrc_hwdep_poll(struct snd_hwdep *hw, struct file *file,
 108                                             poll_table *wait)
 109 {
 110         struct usb_mixer_interface *mixer = hw->private_data;
 111
 112         poll_wait(file, &mixer->rc_waitq, wait);
 113         return mixer->rc_code ? POLLIN | POLLRDNORM : 0;
 114 }
 115
 116 static int snd_usb_soundblaster_remote_init(struct usb_mixer_interface *mixer)
 117 {
 118         struct snd_hwdep *hwdep;
 119         int err, len, i;
 120
 121         for (i = 0; i < ARRAY_SIZE(rc_configs); ++i)
 122                 if (rc_configs[i].usb_id == mixer->chip->usb_id)
 123                         break;
 124         if (i >= ARRAY_SIZE(rc_configs))
 125                 return 0;
 126         mixer->rc_cfg = &rc_configs[i];
 127
 128         len = mixer->rc_cfg->packet_length;
 129
 130         init_waitqueue_head(&mixer->rc_waitq);
 131         err = snd_hwdep_new(mixer->chip->card, "SB remote control", 0, &hwdep);
 132         if (err < 0)
 133                 return err;
 134         snprintf(hwdep->name, sizeof(hwdep->name),
 135                  "%s remote control", mixer->chip->card->shortname);
 136         hwdep->iface = SNDRV_HWDEP_IFACE_SB_RC;
 137         hwdep->private_data = mixer;
 138         hwdep->ops.read = snd_usb_sbrc_hwdep_read;
 139         hwdep->ops.poll = snd_usb_sbrc_hwdep_poll;
 140         hwdep->exclusive = 1;
 141
 142         mixer->rc_urb = usb_alloc_urb(0, GFP_KERNEL);
 143         if (!mixer->rc_urb)
 144                 return -ENOMEM;
 145         mixer->rc_setup_packet = kmalloc(sizeof(*mixer->rc_setup_packet), GFP_KERNEL);
 146         if (!mixer->rc_setup_packet) {
 147                 usb_free_urb(mixer->rc_urb);
 148                 mixer->rc_urb = NULL;
 149                 return -ENOMEM;
 150         }
 151         mixer->rc_setup_packet->bRequestType =
 152                 USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
 153         mixer->rc_setup_packet->bRequest = UAC_GET_MEM;
 154         mixer->rc_setup_packet->wValue = cpu_to_le16(0);
 155         mixer->rc_setup_packet->wIndex = cpu_to_le16(0);
 156         mixer->rc_setup_packet->wLength = cpu_to_le16(len);
 157         usb_fill_control_urb(mixer->rc_urb, mixer->chip->dev,
 158                              usb_rcvctrlpipe(mixer->chip->dev, 0),
 159                              (u8*)mixer->rc_setup_packet, mixer->rc_buffer, len,
 160                              snd_usb_soundblaster_remote_complete, mixer);
 161         return 0;
 162 }
 163
 164 #define snd_audigy2nx_led_info          snd_ctl_boolean_mono_info
 165
 166 static int snd_audigy2nx_led_get(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 167 {
 168         struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
 169         int index = kcontrol->private_value;
 170
 171         ucontrol->value.integer.value[0] = mixer->audigy2nx_leds[index];
 172         return 0;
 173 }
 174
 175 static int snd_audigy2nx_led_put(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
 176 {
 177         struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
 178         int index = kcontrol->private_value;
 179         int value = ucontrol->value.integer.value[0];
 180         int err, changed;
 181
 182         if (value > 1)
 183                 return -EINVAL;
 184         changed = value != mixer->audigy2nx_leds[index];
 185         err = snd_usb_ctl_msg(mixer->chip->dev,
 186                               usb_sndctrlpipe(mixer->chip->dev, 0), 0x24,
 187                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 188                               value, index + 2, NULL, 0, 100);
 189         if (err < 0)
 190                 return err;
 191         mixer->audigy2nx_leds[index] = value;
 192         return changed;
 193 }
 194
 195 static struct snd_kcontrol_new snd_audigy2nx_controls[] = {
 196         {
 197                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 198                 .name = "CMSS LED Switch",
 199                 .info = snd_audigy2nx_led_info,
 200                 .get = snd_audigy2nx_led_get,
 201                 .put = snd_audigy2nx_led_put,
 202                 .private_value = 0,
 203         },
 204         {
 205                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 206                 .name = "Power LED Switch",
 207                 .info = snd_audigy2nx_led_info,
 208                 .get = snd_audigy2nx_led_get,
 209                 .put = snd_audigy2nx_led_put,
 210                 .private_value = 1,
 211         },
 212         {
 213                 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 214                 .name = "Dolby Digital LED Switch",
 215                 .info = snd_audigy2nx_led_info,
 216                 .get = snd_audigy2nx_led_get,
 217                 .put = snd_audigy2nx_led_put,
 218                 .private_value = 2,
 219         },
 220 };
 221
 222 static int snd_audigy2nx_controls_create(struct usb_mixer_interface *mixer)
 223 {
 224         int i, err;
 225
 226         for (i = 0; i < ARRAY_SIZE(snd_audigy2nx_controls); ++i) {
 227                 if (i > 1 && /* Live24ext has 2 LEDs only */
 228                         (mixer->chip->usb_id == USB_ID(0x041e, 0x3040) ||
 229                          mixer->chip->usb_id == USB_ID(0x041e, 0x3048)))
 230                         break;
 231                 err = snd_ctl_add(mixer->chip->card,
 232                                   snd_ctl_new1(&snd_audigy2nx_controls[i], mixer));
 233                 if (err < 0)
 234                         return err;
 235         }
 236         mixer->audigy2nx_leds[1] = 1; /* Power LED is on by default */
 237         return 0;
 238 }
 239
 240 static void snd_audigy2nx_proc_read(struct snd_info_entry *entry,
 241                                     struct snd_info_buffer *buffer)
 242 {
 243         static const struct sb_jack {
 244                 int unitid;
 245                 const char *name;
 246         }  jacks_audigy2nx[] = {
 247                 {4,  "dig in "},
 248                 {7,  "line in"},
 249                 {19, "spk out"},
 250                 {20, "hph out"},
 251                 {-1, NULL}
 252         }, jacks_live24ext[] = {
 253                 {4,  "line in"}, /* &1=Line, &2=Mic*/
 254                 {3,  "hph out"}, /* headphones */
 255                 {0,  "RC     "}, /* last command, 6 bytes see rc_config above */
 256                 {-1, NULL}
 257         };
 258         const struct sb_jack *jacks;
 259         struct usb_mixer_interface *mixer = entry->private_data;
 260         int i, err;
 261         u8 buf[3];
 262
 263         snd_iprintf(buffer, "%s jacks\n\n", mixer->chip->card->shortname);
 264         if (mixer->chip->usb_id == USB_ID(0x041e, 0x3020))
 265                 jacks = jacks_audigy2nx;
 266         else if (mixer->chip->usb_id == USB_ID(0x041e, 0x3040) ||
 267                  mixer->chip->usb_id == USB_ID(0x041e, 0x3048))
 268                 jacks = jacks_live24ext;
 269         else
 270                 return;
 271
 272         for (i = 0; jacks[i].name; ++i) {
 273                 snd_iprintf(buffer, "%s: ", jacks[i].name);
 274                 err = snd_usb_ctl_msg(mixer->chip->dev,
 275                                       usb_rcvctrlpipe(mixer->chip->dev, 0),
 276                                       UAC_GET_MEM, USB_DIR_IN | USB_TYPE_CLASS |
 277                                       USB_RECIP_INTERFACE, 0,
 278                                       jacks[i].unitid << 8, buf, 3, 100);
 279                 if (err == 3 && (buf[0] == 3 || buf[0] == 6))
 280                         snd_iprintf(buffer, "%02x %02x\n", buf[1], buf[2]);
 281                 else
 282                         snd_iprintf(buffer, "?\n");
 283         }
 284 }
 285
 286 static int snd_xonar_u1_switch_get(struct snd_kcontrol *kcontrol,
 287                                    struct snd_ctl_elem_value *ucontrol)
 288 {
 289         struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
 290
 291         ucontrol->value.integer.value[0] = !!(mixer->xonar_u1_status & 0x02);
 292         return 0;
 293 }
 294
 295 static int snd_xonar_u1_switch_put(struct snd_kcontrol *kcontrol,
 296                                    struct snd_ctl_elem_value *ucontrol)
 297 {
 298         struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
 299         u8 old_status, new_status;
 300         int err, changed;
 301
 302         old_status = mixer->xonar_u1_status;
 303         if (ucontrol->value.integer.value[0])
 304                 new_status = old_status | 0x02;
 305         else
 306                 new_status = old_status & ~0x02;
 307         changed = new_status != old_status;
 308         err = snd_usb_ctl_msg(mixer->chip->dev,
 309                               usb_sndctrlpipe(mixer->chip->dev, 0), 0x08,
 310                               USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
 311                               50, 0, &new_status, 1, 100);
 312         if (err < 0)
 313                 return err;
 314         mixer->xonar_u1_status = new_status;
 315         return changed;
 316 }
 317
 318 static struct snd_kcontrol_new snd_xonar_u1_output_switch = {
 319         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 320         .name = "Digital Playback Switch",
 321         .info = snd_ctl_boolean_mono_info,
 322         .get = snd_xonar_u1_switch_get,
 323         .put = snd_xonar_u1_switch_put,
 324 };
 325
 326 static int snd_xonar_u1_controls_create(struct usb_mixer_interface *mixer)
 327 {
 328         int err;
 329
 330         err = snd_ctl_add(mixer->chip->card,
 331                           snd_ctl_new1(&snd_xonar_u1_output_switch, mixer));
 332         if (err < 0)
 333                 return err;
 334         mixer->xonar_u1_status = 0x05;
 335         return 0;
 336 }
 337
 338 void snd_emuusb_set_samplerate(struct snd_usb_audio *chip,
 339                                unsigned char samplerate_id)
 340 {
 341         struct usb_mixer_interface *mixer;
 342         struct usb_mixer_elem_info *cval;
 343         int unitid = 12; /* SamleRate ExtensionUnit ID */
 344
 345         list_for_each_entry(mixer, &chip->mixer_list, list) {
 346                 cval = mixer->id_elems[unitid];
 347                 if (cval) {
 348                         snd_usb_mixer_set_ctl_value(cval, UAC_SET_CUR,
 349                                                     cval->control << 8,
 350                                                     samplerate_id);
 351                         snd_usb_mixer_notify_id(mixer, unitid);
 352                 }
 353                 break;
 354         }
 355 }
 356
 357 int snd_usb_mixer_apply_create_quirk(struct usb_mixer_interface *mixer)
 358 {
 359         int err;
 360         struct snd_info_entry *entry;
 361
 362         if ((err = snd_usb_soundblaster_remote_init(mixer)) < 0)
 363                 return err;
 364
 365         if (mixer->chip->usb_id == USB_ID(0x041e, 0x3020) ||
 366             mixer->chip->usb_id == USB_ID(0x041e, 0x3040) ||
 367             mixer->chip->usb_id == USB_ID(0x041e, 0x3048)) {
 368                 if ((err = snd_audigy2nx_controls_create(mixer)) < 0)
 369                         return err;
 370                 if (!snd_card_proc_new(mixer->chip->card, "audigy2nx", &entry))
 371                         snd_info_set_text_ops(entry, mixer,
 372                                               snd_audigy2nx_proc_read);
 373         }
 374
 375         if (mixer->chip->usb_id == USB_ID(0x0b05, 0x1739) ||
 376             mixer->chip->usb_id == USB_ID(0x0b05, 0x1743)) {
 377                 err = snd_xonar_u1_controls_create(mixer);
 378                 if (err < 0)
 379                         return err;
 380         }
 381
 382         return 0;
 383 }
 384
 385 void snd_usb_mixer_rc_memory_change(struct usb_mixer_interface *mixer,
 386                                     int unitid)
 387 {
 388         if (!mixer->rc_cfg)
 389                 return;
 390         /* unit ids specific to Extigy/Audigy 2 NX: */
 391         switch (unitid) {
 392         case 0: /* remote control */
 393                 mixer->rc_urb->dev = mixer->chip->dev;
 394                 usb_submit_urb(mixer->rc_urb, GFP_ATOMIC);
 395                 break;
 396         case 4: /* digital in jack */
 397         case 7: /* line in jacks */
 398         case 19: /* speaker out jacks */
 399         case 20: /* headphones out jack */
 400                 break;
 401         /* live24ext: 4 = line-in jack */
 402         case 3: /* hp-out jack (may actuate Mute) */
 403                 if (mixer->chip->usb_id == USB_ID(0x041e, 0x3040) ||
 404                     mixer->chip->usb_id == USB_ID(0x041e, 0x3048))
 405                         snd_usb_mixer_notify_id(mixer, mixer->rc_cfg->mute_mixer_id);
 406                 break;
 407         default:
 408                 snd_printd(KERN_DEBUG "memory change in unknown unit %d\n", unitid);
 409                 break;
 410         }
 411 }