sound/pci/ice1712/wm8766.c

   1 /*
   2  *   ALSA driver for ICEnsemble VT17xx
   3  *
   4  *   Lowlevel functions for WM8766 codec
   5  *
   6  *      Copyright (c) 2012 Ondrej Zary <linux@rainbow-software.org>
   7  *
   8  *   This program is free software; you can redistribute it and/or modify
   9  *   it under the terms of the GNU General Public License as published by
  10  *   the Free Software Foundation; either version 2 of the License, or
  11  *   (at your option) any later version.
  12  *
  13  *   This program is distributed in the hope that it will be useful,
  14  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *   GNU General Public License for more details.
  17  *
  18  *   You should have received a copy of the GNU General Public License
  19  *   along with this program; if not, write to the Free Software
  20  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  21  *
  22  */
  23
  24 #include <linux/delay.h>
  25 #include <sound/core.h>
  26 #include <sound/control.h>
  27 #include <sound/tlv.h>
  28 #include "wm8766.h"
  29
  30 /* low-level access */
  31
  32 static void snd_wm8766_write(struct snd_wm8766 *wm, u16 addr, u16 data)
  33 {
  34         if (addr < WM8766_REG_COUNT)
  35                 wm->regs[addr] = data;
  36         wm->ops.write(wm, addr, data);
  37 }
  38
  39 /* mixer controls */
  40
  41 static const DECLARE_TLV_DB_SCALE(wm8766_tlv, -12750, 50, 1);
  42
  43 static struct snd_wm8766_ctl snd_wm8766_default_ctl[WM8766_CTL_COUNT] = {
  44         [WM8766_CTL_CH1_VOL] = {
  45                 .name = "Channel 1 Playback Volume",
  46                 .type = SNDRV_CTL_ELEM_TYPE_INTEGER,
  47                 .tlv = wm8766_tlv,
  48                 .reg1 = WM8766_REG_DACL1,
  49                 .reg2 = WM8766_REG_DACR1,
  50                 .mask1 = WM8766_VOL_MASK,
  51                 .mask2 = WM8766_VOL_MASK,
  52                 .max = 0xff,
  53                 .flags = WM8766_FLAG_STEREO | WM8766_FLAG_VOL_UPDATE,
  54         },
  55         [WM8766_CTL_CH2_VOL] = {
  56                 .name = "Channel 2 Playback Volume",
  57                 .type = SNDRV_CTL_ELEM_TYPE_INTEGER,
  58                 .tlv = wm8766_tlv,
  59                 .reg1 = WM8766_REG_DACL2,
  60                 .reg2 = WM8766_REG_DACR2,
  61                 .mask1 = WM8766_VOL_MASK,
  62                 .mask2 = WM8766_VOL_MASK,
  63                 .max = 0xff,
  64                 .flags = WM8766_FLAG_STEREO | WM8766_FLAG_VOL_UPDATE,
  65         },
  66         [WM8766_CTL_CH3_VOL] = {
  67                 .name = "Channel 3 Playback Volume",
  68                 .type = SNDRV_CTL_ELEM_TYPE_INTEGER,
  69                 .tlv = wm8766_tlv,
  70                 .reg1 = WM8766_REG_DACL3,
  71                 .reg2 = WM8766_REG_DACR3,
  72                 .mask1 = WM8766_VOL_MASK,
  73                 .mask2 = WM8766_VOL_MASK,
  74                 .max = 0xff,
  75                 .flags = WM8766_FLAG_STEREO | WM8766_FLAG_VOL_UPDATE,
  76         },
  77         [WM8766_CTL_CH1_SW] = {
  78                 .name = "Channel 1 Playback Switch",
  79                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
  80                 .reg1 = WM8766_REG_DACCTRL2,
  81                 .mask1 = WM8766_DAC2_MUTE1,
  82                 .flags = WM8766_FLAG_INVERT,
  83         },
  84         [WM8766_CTL_CH2_SW] = {
  85                 .name = "Channel 2 Playback Switch",
  86                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
  87                 .reg1 = WM8766_REG_DACCTRL2,
  88                 .mask1 = WM8766_DAC2_MUTE2,
  89                 .flags = WM8766_FLAG_INVERT,
  90         },
  91         [WM8766_CTL_CH3_SW] = {
  92                 .name = "Channel 3 Playback Switch",
  93                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
  94                 .reg1 = WM8766_REG_DACCTRL2,
  95                 .mask1 = WM8766_DAC2_MUTE3,
  96                 .flags = WM8766_FLAG_INVERT,
  97         },
  98         [WM8766_CTL_PHASE1_SW] = {
  99                 .name = "Channel 1 Phase Invert Playback Switch",
 100                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
 101                 .reg1 = WM8766_REG_IFCTRL,
 102                 .mask1 = WM8766_PHASE_INVERT1,
 103         },
 104         [WM8766_CTL_PHASE2_SW] = {
 105                 .name = "Channel 2 Phase Invert Playback Switch",
 106                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
 107                 .reg1 = WM8766_REG_IFCTRL,
 108                 .mask1 = WM8766_PHASE_INVERT2,
 109         },
 110         [WM8766_CTL_PHASE3_SW] = {
 111                 .name = "Channel 3 Phase Invert Playback Switch",
 112                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
 113                 .reg1 = WM8766_REG_IFCTRL,
 114                 .mask1 = WM8766_PHASE_INVERT3,
 115         },
 116         [WM8766_CTL_DEEMPH1_SW] = {
 117                 .name = "Channel 1 Deemphasis Playback Switch",
 118                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
 119                 .reg1 = WM8766_REG_DACCTRL2,
 120                 .mask1 = WM8766_DAC2_DEEMP1,
 121         },
 122         [WM8766_CTL_DEEMPH2_SW] = {
 123                 .name = "Channel 2 Deemphasis Playback Switch",
 124                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
 125                 .reg1 = WM8766_REG_DACCTRL2,
 126                 .mask1 = WM8766_DAC2_DEEMP2,
 127         },
 128         [WM8766_CTL_DEEMPH3_SW] = {
 129                 .name = "Channel 3 Deemphasis Playback Switch",
 130                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
 131                 .reg1 = WM8766_REG_DACCTRL2,
 132                 .mask1 = WM8766_DAC2_DEEMP3,
 133         },
 134         [WM8766_CTL_IZD_SW] = {
 135                 .name = "Infinite Zero Detect Playback Switch",
 136                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
 137                 .reg1 = WM8766_REG_DACCTRL1,
 138                 .mask1 = WM8766_DAC_IZD,
 139         },
 140         [WM8766_CTL_ZC_SW] = {
 141                 .name = "Zero Cross Detect Playback Switch",
 142                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
 143                 .reg1 = WM8766_REG_DACCTRL2,
 144                 .mask1 = WM8766_DAC2_ZCD,
 145                 .flags = WM8766_FLAG_INVERT,
 146         },
 147 };
 148
 149 /* exported functions */
 150
 151 void snd_wm8766_init(struct snd_wm8766 *wm)
 152 {
 153         int i;
 154         static const u16 default_values[] = {
 155                 0x000, 0x100,
 156                 0x120, 0x000,
 157                 0x000, 0x100, 0x000, 0x100, 0x000,
 158                 0x000, 0x080,
 159         };
 160
 161         memcpy(wm->ctl, snd_wm8766_default_ctl, sizeof(wm->ctl));
 162
 163         snd_wm8766_write(wm, WM8766_REG_RESET, 0x00); /* reset */
 164         udelay(10);
 165         /* load defaults */
 166         for (i = 0; i < ARRAY_SIZE(default_values); i++)
 167                 snd_wm8766_write(wm, i, default_values[i]);
 168 }
 169
 170 void snd_wm8766_resume(struct snd_wm8766 *wm)
 171 {
 172         int i;
 173
 174         for (i = 0; i < WM8766_REG_COUNT; i++)
 175                 snd_wm8766_write(wm, i, wm->regs[i]);
 176 }
 177
 178 void snd_wm8766_set_if(struct snd_wm8766 *wm, u16 dac)
 179 {
 180         u16 val = wm->regs[WM8766_REG_IFCTRL] & ~WM8766_IF_MASK;
 181
 182         dac &= WM8766_IF_MASK;
 183         snd_wm8766_write(wm, WM8766_REG_IFCTRL, val | dac);
 184 }
 185
 186 void snd_wm8766_set_master_mode(struct snd_wm8766 *wm, u16 mode)
 187 {
 188         u16 val = wm->regs[WM8766_REG_DACCTRL3] & ~WM8766_DAC3_MSTR_MASK;
 189
 190         mode &= WM8766_DAC3_MSTR_MASK;
 191         snd_wm8766_write(wm, WM8766_REG_DACCTRL3, val | mode);
 192 }
 193
 194 void snd_wm8766_set_power(struct snd_wm8766 *wm, u16 power)
 195 {
 196         u16 val = wm->regs[WM8766_REG_DACCTRL3] & ~WM8766_DAC3_POWER_MASK;
 197
 198         power &= WM8766_DAC3_POWER_MASK;
 199         snd_wm8766_write(wm, WM8766_REG_DACCTRL3, val | power);
 200 }
 201
 202 void snd_wm8766_volume_restore(struct snd_wm8766 *wm)
 203 {
 204         u16 val = wm->regs[WM8766_REG_DACR1];
 205         /* restore volume after MCLK stopped */
 206         snd_wm8766_write(wm, WM8766_REG_DACR1, val | WM8766_VOL_UPDATE);
 207 }
 208
 209 /* mixer callbacks */
 210
 211 static int snd_wm8766_volume_info(struct snd_kcontrol *kcontrol,
 212                                    struct snd_ctl_elem_info *uinfo)
 213 {
 214         struct snd_wm8766 *wm = snd_kcontrol_chip(kcontrol);
 215         int n = kcontrol->private_value;
 216
 217         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 218         uinfo->count = (wm->ctl[n].flags & WM8766_FLAG_STEREO) ? 2 : 1;
 219         uinfo->value.integer.min = wm->ctl[n].min;
 220         uinfo->value.integer.max = wm->ctl[n].max;
 221
 222         return 0;
 223 }
 224
 225 static int snd_wm8766_enum_info(struct snd_kcontrol *kcontrol,
 226                                       struct snd_ctl_elem_info *uinfo)
 227 {
 228         struct snd_wm8766 *wm = snd_kcontrol_chip(kcontrol);
 229         int n = kcontrol->private_value;
 230
 231         return snd_ctl_enum_info(uinfo, 1, wm->ctl[n].max,
 232                                                 wm->ctl[n].enum_names);
 233 }
 234
 235 static int snd_wm8766_ctl_get(struct snd_kcontrol *kcontrol,
 236                                   struct snd_ctl_elem_value *ucontrol)
 237 {
 238         struct snd_wm8766 *wm = snd_kcontrol_chip(kcontrol);
 239         int n = kcontrol->private_value;
 240         u16 val1, val2;
 241
 242         if (wm->ctl[n].get)
 243                 wm->ctl[n].get(wm, &val1, &val2);
 244         else {
 245                 val1 = wm->regs[wm->ctl[n].reg1] & wm->ctl[n].mask1;
 246                 val1 >>= __ffs(wm->ctl[n].mask1);
 247                 if (wm->ctl[n].flags & WM8766_FLAG_STEREO) {
 248                         val2 = wm->regs[wm->ctl[n].reg2] & wm->ctl[n].mask2;
 249                         val2 >>= __ffs(wm->ctl[n].mask2);
 250                         if (wm->ctl[n].flags & WM8766_FLAG_VOL_UPDATE)
 251                                 val2 &= ~WM8766_VOL_UPDATE;
 252                 }
 253         }
 254         if (wm->ctl[n].flags & WM8766_FLAG_INVERT) {
 255                 val1 = wm->ctl[n].max - (val1 - wm->ctl[n].min);
 256                 if (wm->ctl[n].flags & WM8766_FLAG_STEREO)
 257                         val2 = wm->ctl[n].max - (val2 - wm->ctl[n].min);
 258         }
 259         ucontrol->value.integer.value[0] = val1;
 260         if (wm->ctl[n].flags & WM8766_FLAG_STEREO)
 261                 ucontrol->value.integer.value[1] = val2;
 262
 263         return 0;
 264 }
 265
 266 static int snd_wm8766_ctl_put(struct snd_kcontrol *kcontrol,
 267                                   struct snd_ctl_elem_value *ucontrol)
 268 {
 269         struct snd_wm8766 *wm = snd_kcontrol_chip(kcontrol);
 270         int n = kcontrol->private_value;
 271         u16 val, regval1, regval2;
 272
 273         /* this also works for enum because value is an union */
 274         regval1 = ucontrol->value.integer.value[0];
 275         regval2 = ucontrol->value.integer.value[1];
 276         if (wm->ctl[n].flags & WM8766_FLAG_INVERT) {
 277                 regval1 = wm->ctl[n].max - (regval1 - wm->ctl[n].min);
 278                 regval2 = wm->ctl[n].max - (regval2 - wm->ctl[n].min);
 279         }
 280         if (wm->ctl[n].set)
 281                 wm->ctl[n].set(wm, regval1, regval2);
 282         else {
 283                 val = wm->regs[wm->ctl[n].reg1] & ~wm->ctl[n].mask1;
 284                 val |= regval1 << __ffs(wm->ctl[n].mask1);
 285                 /* both stereo controls in one register */
 286                 if (wm->ctl[n].flags & WM8766_FLAG_STEREO &&
 287                                 wm->ctl[n].reg1 == wm->ctl[n].reg2) {
 288                         val &= ~wm->ctl[n].mask2;
 289                         val |= regval2 << __ffs(wm->ctl[n].mask2);
 290                 }
 291                 snd_wm8766_write(wm, wm->ctl[n].reg1, val);
 292                 /* stereo controls in different registers */
 293                 if (wm->ctl[n].flags & WM8766_FLAG_STEREO &&
 294                                 wm->ctl[n].reg1 != wm->ctl[n].reg2) {
 295                         val = wm->regs[wm->ctl[n].reg2] & ~wm->ctl[n].mask2;
 296                         val |= regval2 << __ffs(wm->ctl[n].mask2);
 297                         if (wm->ctl[n].flags & WM8766_FLAG_VOL_UPDATE)
 298                                 val |= WM8766_VOL_UPDATE;
 299                         snd_wm8766_write(wm, wm->ctl[n].reg2, val);
 300                 }
 301         }
 302
 303         return 0;
 304 }
 305
 306 static int snd_wm8766_add_control(struct snd_wm8766 *wm, int num)
 307 {
 308         struct snd_kcontrol_new cont;
 309         struct snd_kcontrol *ctl;
 310
 311         memset(&cont, 0, sizeof(cont));
 312         cont.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 313         cont.private_value = num;
 314         cont.name = wm->ctl[num].name;
 315         cont.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
 316         if (wm->ctl[num].flags & WM8766_FLAG_LIM ||
 317             wm->ctl[num].flags & WM8766_FLAG_ALC)
 318                 cont.access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
 319         cont.tlv.p = NULL;
 320         cont.get = snd_wm8766_ctl_get;
 321         cont.put = snd_wm8766_ctl_put;
 322
 323         switch (wm->ctl[num].type) {
 324         case SNDRV_CTL_ELEM_TYPE_INTEGER:
 325                 cont.info = snd_wm8766_volume_info;
 326                 cont.access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
 327                 cont.tlv.p = wm->ctl[num].tlv;
 328                 break;
 329         case SNDRV_CTL_ELEM_TYPE_BOOLEAN:
 330                 wm->ctl[num].max = 1;
 331                 if (wm->ctl[num].flags & WM8766_FLAG_STEREO)
 332                         cont.info = snd_ctl_boolean_stereo_info;
 333                 else
 334                         cont.info = snd_ctl_boolean_mono_info;
 335                 break;
 336         case SNDRV_CTL_ELEM_TYPE_ENUMERATED:
 337                 cont.info = snd_wm8766_enum_info;
 338                 break;
 339         default:
 340                 return -EINVAL;
 341         }
 342         ctl = snd_ctl_new1(&cont, wm);
 343         if (!ctl)
 344                 return -ENOMEM;
 345         wm->ctl[num].kctl = ctl;
 346
 347         return snd_ctl_add(wm->card, ctl);
 348 }
 349
 350 int snd_wm8766_build_controls(struct snd_wm8766 *wm)
 351 {
 352         int err, i;
 353
 354         for (i = 0; i < WM8766_CTL_COUNT; i++)
 355                 if (wm->ctl[i].name) {
 356                         err = snd_wm8766_add_control(wm, i);
 357                         if (err < 0)
 358                                 return err;
 359                 }
 360
 361         return 0;
 362 }