sound/pci/ice1712/wm8766.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  *   ALSA driver for ICEnsemble VT17xx
   4  *
   5  *   Lowlevel functions for WM8766 codec
   6  *
   7  *      Copyright (c) 2012 Ondrej Zary <linux@rainbow-software.org>
   8  */
   9
  10 #include <linux/delay.h>
  11 #include <sound/core.h>
  12 #include <sound/control.h>
  13 #include <sound/tlv.h>
  14 #include "wm8766.h"
  15
  16 /* low-level access */
  17
  18 static void snd_wm8766_write(struct snd_wm8766 *wm, u16 addr, u16 data)
  19 {
  20         if (addr < WM8766_REG_COUNT)
  21                 wm->regs[addr] = data;
  22         wm->ops.write(wm, addr, data);
  23 }
  24
  25 /* mixer controls */
  26
  27 static const DECLARE_TLV_DB_SCALE(wm8766_tlv, -12750, 50, 1);
  28
  29 static struct snd_wm8766_ctl snd_wm8766_default_ctl[WM8766_CTL_COUNT] = {
  30         [WM8766_CTL_CH1_VOL] = {
  31                 .name = "Channel 1 Playback Volume",
  32                 .type = SNDRV_CTL_ELEM_TYPE_INTEGER,
  33                 .tlv = wm8766_tlv,
  34                 .reg1 = WM8766_REG_DACL1,
  35                 .reg2 = WM8766_REG_DACR1,
  36                 .mask1 = WM8766_VOL_MASK,
  37                 .mask2 = WM8766_VOL_MASK,
  38                 .max = 0xff,
  39                 .flags = WM8766_FLAG_STEREO | WM8766_FLAG_VOL_UPDATE,
  40         },
  41         [WM8766_CTL_CH2_VOL] = {
  42                 .name = "Channel 2 Playback Volume",
  43                 .type = SNDRV_CTL_ELEM_TYPE_INTEGER,
  44                 .tlv = wm8766_tlv,
  45                 .reg1 = WM8766_REG_DACL2,
  46                 .reg2 = WM8766_REG_DACR2,
  47                 .mask1 = WM8766_VOL_MASK,
  48                 .mask2 = WM8766_VOL_MASK,
  49                 .max = 0xff,
  50                 .flags = WM8766_FLAG_STEREO | WM8766_FLAG_VOL_UPDATE,
  51         },
  52         [WM8766_CTL_CH3_VOL] = {
  53                 .name = "Channel 3 Playback Volume",
  54                 .type = SNDRV_CTL_ELEM_TYPE_INTEGER,
  55                 .tlv = wm8766_tlv,
  56                 .reg1 = WM8766_REG_DACL3,
  57                 .reg2 = WM8766_REG_DACR3,
  58                 .mask1 = WM8766_VOL_MASK,
  59                 .mask2 = WM8766_VOL_MASK,
  60                 .max = 0xff,
  61                 .flags = WM8766_FLAG_STEREO | WM8766_FLAG_VOL_UPDATE,
  62         },
  63         [WM8766_CTL_CH1_SW] = {
  64                 .name = "Channel 1 Playback Switch",
  65                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
  66                 .reg1 = WM8766_REG_DACCTRL2,
  67                 .mask1 = WM8766_DAC2_MUTE1,
  68                 .flags = WM8766_FLAG_INVERT,
  69         },
  70         [WM8766_CTL_CH2_SW] = {
  71                 .name = "Channel 2 Playback Switch",
  72                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
  73                 .reg1 = WM8766_REG_DACCTRL2,
  74                 .mask1 = WM8766_DAC2_MUTE2,
  75                 .flags = WM8766_FLAG_INVERT,
  76         },
  77         [WM8766_CTL_CH3_SW] = {
  78                 .name = "Channel 3 Playback Switch",
  79                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
  80                 .reg1 = WM8766_REG_DACCTRL2,
  81                 .mask1 = WM8766_DAC2_MUTE3,
  82                 .flags = WM8766_FLAG_INVERT,
  83         },
  84         [WM8766_CTL_PHASE1_SW] = {
  85                 .name = "Channel 1 Phase Invert Playback Switch",
  86                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
  87                 .reg1 = WM8766_REG_IFCTRL,
  88                 .mask1 = WM8766_PHASE_INVERT1,
  89         },
  90         [WM8766_CTL_PHASE2_SW] = {
  91                 .name = "Channel 2 Phase Invert Playback Switch",
  92                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
  93                 .reg1 = WM8766_REG_IFCTRL,
  94                 .mask1 = WM8766_PHASE_INVERT2,
  95         },
  96         [WM8766_CTL_PHASE3_SW] = {
  97                 .name = "Channel 3 Phase Invert Playback Switch",
  98                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
  99                 .reg1 = WM8766_REG_IFCTRL,
 100                 .mask1 = WM8766_PHASE_INVERT3,
 101         },
 102         [WM8766_CTL_DEEMPH1_SW] = {
 103                 .name = "Channel 1 Deemphasis Playback Switch",
 104                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
 105                 .reg1 = WM8766_REG_DACCTRL2,
 106                 .mask1 = WM8766_DAC2_DEEMP1,
 107         },
 108         [WM8766_CTL_DEEMPH2_SW] = {
 109                 .name = "Channel 2 Deemphasis Playback Switch",
 110                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
 111                 .reg1 = WM8766_REG_DACCTRL2,
 112                 .mask1 = WM8766_DAC2_DEEMP2,
 113         },
 114         [WM8766_CTL_DEEMPH3_SW] = {
 115                 .name = "Channel 3 Deemphasis Playback Switch",
 116                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
 117                 .reg1 = WM8766_REG_DACCTRL2,
 118                 .mask1 = WM8766_DAC2_DEEMP3,
 119         },
 120         [WM8766_CTL_IZD_SW] = {
 121                 .name = "Infinite Zero Detect Playback Switch",
 122                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
 123                 .reg1 = WM8766_REG_DACCTRL1,
 124                 .mask1 = WM8766_DAC_IZD,
 125         },
 126         [WM8766_CTL_ZC_SW] = {
 127                 .name = "Zero Cross Detect Playback Switch",
 128                 .type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
 129                 .reg1 = WM8766_REG_DACCTRL2,
 130                 .mask1 = WM8766_DAC2_ZCD,
 131                 .flags = WM8766_FLAG_INVERT,
 132         },
 133 };
 134
 135 /* exported functions */
 136
 137 void snd_wm8766_init(struct snd_wm8766 *wm)
 138 {
 139         int i;
 140         static const u16 default_values[] = {
 141                 0x000, 0x100,
 142                 0x120, 0x000,
 143                 0x000, 0x100, 0x000, 0x100, 0x000,
 144                 0x000, 0x080,
 145         };
 146
 147         memcpy(wm->ctl, snd_wm8766_default_ctl, sizeof(wm->ctl));
 148
 149         snd_wm8766_write(wm, WM8766_REG_RESET, 0x00); /* reset */
 150         udelay(10);
 151         /* load defaults */
 152         for (i = 0; i < ARRAY_SIZE(default_values); i++)
 153                 snd_wm8766_write(wm, i, default_values[i]);
 154 }
 155
 156 void snd_wm8766_resume(struct snd_wm8766 *wm)
 157 {
 158         int i;
 159
 160         for (i = 0; i < WM8766_REG_COUNT; i++)
 161                 snd_wm8766_write(wm, i, wm->regs[i]);
 162 }
 163
 164 void snd_wm8766_set_if(struct snd_wm8766 *wm, u16 dac)
 165 {
 166         u16 val = wm->regs[WM8766_REG_IFCTRL] & ~WM8766_IF_MASK;
 167
 168         dac &= WM8766_IF_MASK;
 169         snd_wm8766_write(wm, WM8766_REG_IFCTRL, val | dac);
 170 }
 171
 172 void snd_wm8766_volume_restore(struct snd_wm8766 *wm)
 173 {
 174         u16 val = wm->regs[WM8766_REG_DACR1];
 175         /* restore volume after MCLK stopped */
 176         snd_wm8766_write(wm, WM8766_REG_DACR1, val | WM8766_VOL_UPDATE);
 177 }
 178
 179 /* mixer callbacks */
 180
 181 static int snd_wm8766_volume_info(struct snd_kcontrol *kcontrol,
 182                                    struct snd_ctl_elem_info *uinfo)
 183 {
 184         struct snd_wm8766 *wm = snd_kcontrol_chip(kcontrol);
 185         int n = kcontrol->private_value;
 186
 187         uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 188         uinfo->count = (wm->ctl[n].flags & WM8766_FLAG_STEREO) ? 2 : 1;
 189         uinfo->value.integer.min = wm->ctl[n].min;
 190         uinfo->value.integer.max = wm->ctl[n].max;
 191
 192         return 0;
 193 }
 194
 195 static int snd_wm8766_enum_info(struct snd_kcontrol *kcontrol,
 196                                       struct snd_ctl_elem_info *uinfo)
 197 {
 198         struct snd_wm8766 *wm = snd_kcontrol_chip(kcontrol);
 199         int n = kcontrol->private_value;
 200
 201         return snd_ctl_enum_info(uinfo, 1, wm->ctl[n].max,
 202                                                 wm->ctl[n].enum_names);
 203 }
 204
 205 static int snd_wm8766_ctl_get(struct snd_kcontrol *kcontrol,
 206                                   struct snd_ctl_elem_value *ucontrol)
 207 {
 208         struct snd_wm8766 *wm = snd_kcontrol_chip(kcontrol);
 209         int n = kcontrol->private_value;
 210         u16 val1, val2;
 211
 212         if (wm->ctl[n].get)
 213                 wm->ctl[n].get(wm, &val1, &val2);
 214         else {
 215                 val1 = wm->regs[wm->ctl[n].reg1] & wm->ctl[n].mask1;
 216                 val1 >>= __ffs(wm->ctl[n].mask1);
 217                 if (wm->ctl[n].flags & WM8766_FLAG_STEREO) {
 218                         val2 = wm->regs[wm->ctl[n].reg2] & wm->ctl[n].mask2;
 219                         val2 >>= __ffs(wm->ctl[n].mask2);
 220                         if (wm->ctl[n].flags & WM8766_FLAG_VOL_UPDATE)
 221                                 val2 &= ~WM8766_VOL_UPDATE;
 222                 }
 223         }
 224         if (wm->ctl[n].flags & WM8766_FLAG_INVERT) {
 225                 val1 = wm->ctl[n].max - (val1 - wm->ctl[n].min);
 226                 if (wm->ctl[n].flags & WM8766_FLAG_STEREO)
 227                         val2 = wm->ctl[n].max - (val2 - wm->ctl[n].min);
 228         }
 229         ucontrol->value.integer.value[0] = val1;
 230         if (wm->ctl[n].flags & WM8766_FLAG_STEREO)
 231                 ucontrol->value.integer.value[1] = val2;
 232
 233         return 0;
 234 }
 235
 236 static int snd_wm8766_ctl_put(struct snd_kcontrol *kcontrol,
 237                                   struct snd_ctl_elem_value *ucontrol)
 238 {
 239         struct snd_wm8766 *wm = snd_kcontrol_chip(kcontrol);
 240         int n = kcontrol->private_value;
 241         u16 val, regval1, regval2;
 242
 243         /* this also works for enum because value is a union */
 244         regval1 = ucontrol->value.integer.value[0];
 245         regval2 = ucontrol->value.integer.value[1];
 246         if (wm->ctl[n].flags & WM8766_FLAG_INVERT) {
 247                 regval1 = wm->ctl[n].max - (regval1 - wm->ctl[n].min);
 248                 regval2 = wm->ctl[n].max - (regval2 - wm->ctl[n].min);
 249         }
 250         if (wm->ctl[n].set)
 251                 wm->ctl[n].set(wm, regval1, regval2);
 252         else {
 253                 val = wm->regs[wm->ctl[n].reg1] & ~wm->ctl[n].mask1;
 254                 val |= regval1 << __ffs(wm->ctl[n].mask1);
 255                 /* both stereo controls in one register */
 256                 if (wm->ctl[n].flags & WM8766_FLAG_STEREO &&
 257                                 wm->ctl[n].reg1 == wm->ctl[n].reg2) {
 258                         val &= ~wm->ctl[n].mask2;
 259                         val |= regval2 << __ffs(wm->ctl[n].mask2);
 260                 }
 261                 snd_wm8766_write(wm, wm->ctl[n].reg1, val);
 262                 /* stereo controls in different registers */
 263                 if (wm->ctl[n].flags & WM8766_FLAG_STEREO &&
 264                                 wm->ctl[n].reg1 != wm->ctl[n].reg2) {
 265                         val = wm->regs[wm->ctl[n].reg2] & ~wm->ctl[n].mask2;
 266                         val |= regval2 << __ffs(wm->ctl[n].mask2);
 267                         if (wm->ctl[n].flags & WM8766_FLAG_VOL_UPDATE)
 268                                 val |= WM8766_VOL_UPDATE;
 269                         snd_wm8766_write(wm, wm->ctl[n].reg2, val);
 270                 }
 271         }
 272
 273         return 0;
 274 }
 275
 276 static int snd_wm8766_add_control(struct snd_wm8766 *wm, int num)
 277 {
 278         struct snd_kcontrol_new cont;
 279         struct snd_kcontrol *ctl;
 280
 281         memset(&cont, 0, sizeof(cont));
 282         cont.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 283         cont.private_value = num;
 284         cont.name = wm->ctl[num].name;
 285         cont.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
 286         if (wm->ctl[num].flags & WM8766_FLAG_LIM ||
 287             wm->ctl[num].flags & WM8766_FLAG_ALC)
 288                 cont.access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
 289         cont.tlv.p = NULL;
 290         cont.get = snd_wm8766_ctl_get;
 291         cont.put = snd_wm8766_ctl_put;
 292
 293         switch (wm->ctl[num].type) {
 294         case SNDRV_CTL_ELEM_TYPE_INTEGER:
 295                 cont.info = snd_wm8766_volume_info;
 296                 cont.access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
 297                 cont.tlv.p = wm->ctl[num].tlv;
 298                 break;
 299         case SNDRV_CTL_ELEM_TYPE_BOOLEAN:
 300                 wm->ctl[num].max = 1;
 301                 if (wm->ctl[num].flags & WM8766_FLAG_STEREO)
 302                         cont.info = snd_ctl_boolean_stereo_info;
 303                 else
 304                         cont.info = snd_ctl_boolean_mono_info;
 305                 break;
 306         case SNDRV_CTL_ELEM_TYPE_ENUMERATED:
 307                 cont.info = snd_wm8766_enum_info;
 308                 break;
 309         default:
 310                 return -EINVAL;
 311         }
 312         ctl = snd_ctl_new1(&cont, wm);
 313         if (!ctl)
 314                 return -ENOMEM;
 315         wm->ctl[num].kctl = ctl;
 316
 317         return snd_ctl_add(wm->card, ctl);
 318 }
 319
 320 int snd_wm8766_build_controls(struct snd_wm8766 *wm)
 321 {
 322         int err, i;
 323
 324         for (i = 0; i < WM8766_CTL_COUNT; i++)
 325                 if (wm->ctl[i].name) {
 326                         err = snd_wm8766_add_control(wm, i);
 327                         if (err < 0)
 328                                 return err;
 329                 }
 330
 331         return 0;
 332 }