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linux/sound/pci/ice1712/wm8776.c
Thomas Gleixner 1a59d1b8e0 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156 
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms of the gnu general public license as published by
  the free software foundation either version 2 of the license or at
  your option any later version this program is distributed in the
  hope that it will be useful but without any warranty without even
  the implied warranty of merchantability or fitness for a particular
  purpose see the gnu general public license for more details you
  should have received a copy of the gnu general public license along
  with this program if not write to the free software foundation inc
  59 temple place suite 330 boston ma 02111 1307 usa

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-or-later

has been chosen to replace the boilerplate/reference in 1334 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Richard Fontana <rfontana@redhat.com>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190527070033.113240726@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30 11:26:35 -07:00

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* ALSA driver for ICEnsemble VT17xx
*
* Lowlevel functions for WM8776 codec
*
* Copyright (c) 2012 Ondrej Zary <linux@rainbow-software.org>
*/
#include <linux/delay.h>
#include <sound/core.h>
#include <sound/control.h>
#include <sound/tlv.h>
#include "wm8776.h"
/* low-level access */
static void snd_wm8776_write(struct snd_wm8776 *wm, u16 addr, u16 data)
{
u8 bus_addr = addr << 1 | data >> 8; /* addr + 9th data bit */
u8 bus_data = data & 0xff; /* remaining 8 data bits */
if (addr < WM8776_REG_RESET)
wm->regs[addr] = data;
wm->ops.write(wm, bus_addr, bus_data);
}
/* register-level functions */
static void snd_wm8776_activate_ctl(struct snd_wm8776 *wm,
const char *ctl_name,
bool active)
{
struct snd_card *card = wm->card;
struct snd_kcontrol *kctl;
struct snd_kcontrol_volatile *vd;
struct snd_ctl_elem_id elem_id;
unsigned int index_offset;
memset(&elem_id, 0, sizeof(elem_id));
strlcpy(elem_id.name, ctl_name, sizeof(elem_id.name));
elem_id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
kctl = snd_ctl_find_id(card, &elem_id);
if (!kctl)
return;
index_offset = snd_ctl_get_ioff(kctl, &kctl->id);
vd = &kctl->vd[index_offset];
if (active)
vd->access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
else
vd->access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_INFO, &kctl->id);
}
static void snd_wm8776_update_agc_ctl(struct snd_wm8776 *wm)
{
int i, flags_on = 0, flags_off = 0;
switch (wm->agc_mode) {
case WM8776_AGC_OFF:
flags_off = WM8776_FLAG_LIM | WM8776_FLAG_ALC;
break;
case WM8776_AGC_LIM:
flags_off = WM8776_FLAG_ALC;
flags_on = WM8776_FLAG_LIM;
break;
case WM8776_AGC_ALC_R:
case WM8776_AGC_ALC_L:
case WM8776_AGC_ALC_STEREO:
flags_off = WM8776_FLAG_LIM;
flags_on = WM8776_FLAG_ALC;
break;
}
for (i = 0; i < WM8776_CTL_COUNT; i++)
if (wm->ctl[i].flags & flags_off)
snd_wm8776_activate_ctl(wm, wm->ctl[i].name, false);
else if (wm->ctl[i].flags & flags_on)
snd_wm8776_activate_ctl(wm, wm->ctl[i].name, true);
}
static void snd_wm8776_set_agc(struct snd_wm8776 *wm, u16 agc, u16 nothing)
{
u16 alc1 = wm->regs[WM8776_REG_ALCCTRL1] & ~WM8776_ALC1_LCT_MASK;
u16 alc2 = wm->regs[WM8776_REG_ALCCTRL2] & ~WM8776_ALC2_LCEN;
switch (agc) {
case 0: /* Off */
wm->agc_mode = WM8776_AGC_OFF;
break;
case 1: /* Limiter */
alc2 |= WM8776_ALC2_LCEN;
wm->agc_mode = WM8776_AGC_LIM;
break;
case 2: /* ALC Right */
alc1 |= WM8776_ALC1_LCSEL_ALCR;
alc2 |= WM8776_ALC2_LCEN;
wm->agc_mode = WM8776_AGC_ALC_R;
break;
case 3: /* ALC Left */
alc1 |= WM8776_ALC1_LCSEL_ALCL;
alc2 |= WM8776_ALC2_LCEN;
wm->agc_mode = WM8776_AGC_ALC_L;
break;
case 4: /* ALC Stereo */
alc1 |= WM8776_ALC1_LCSEL_ALCSTEREO;
alc2 |= WM8776_ALC2_LCEN;
wm->agc_mode = WM8776_AGC_ALC_STEREO;
break;
}
snd_wm8776_write(wm, WM8776_REG_ALCCTRL1, alc1);
snd_wm8776_write(wm, WM8776_REG_ALCCTRL2, alc2);
snd_wm8776_update_agc_ctl(wm);
}
static void snd_wm8776_get_agc(struct snd_wm8776 *wm, u16 *mode, u16 *nothing)
{
*mode = wm->agc_mode;
}
/* mixer controls */
static const DECLARE_TLV_DB_SCALE(wm8776_hp_tlv, -7400, 100, 1);
static const DECLARE_TLV_DB_SCALE(wm8776_dac_tlv, -12750, 50, 1);
static const DECLARE_TLV_DB_SCALE(wm8776_adc_tlv, -10350, 50, 1);
static const DECLARE_TLV_DB_SCALE(wm8776_lct_tlv, -1600, 100, 0);
static const DECLARE_TLV_DB_SCALE(wm8776_maxgain_tlv, 0, 400, 0);
static const DECLARE_TLV_DB_SCALE(wm8776_ngth_tlv, -7800, 600, 0);
static const DECLARE_TLV_DB_SCALE(wm8776_maxatten_lim_tlv, -1200, 100, 0);
static const DECLARE_TLV_DB_SCALE(wm8776_maxatten_alc_tlv, -2100, 400, 0);
static struct snd_wm8776_ctl snd_wm8776_default_ctl[WM8776_CTL_COUNT] = {
[WM8776_CTL_DAC_VOL] = {
.name = "Master Playback Volume",
.type = SNDRV_CTL_ELEM_TYPE_INTEGER,
.tlv = wm8776_dac_tlv,
.reg1 = WM8776_REG_DACLVOL,
.reg2 = WM8776_REG_DACRVOL,
.mask1 = WM8776_DACVOL_MASK,
.mask2 = WM8776_DACVOL_MASK,
.max = 0xff,
.flags = WM8776_FLAG_STEREO | WM8776_FLAG_VOL_UPDATE,
},
[WM8776_CTL_DAC_SW] = {
.name = "Master Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8776_REG_DACCTRL1,
.reg2 = WM8776_REG_DACCTRL1,
.mask1 = WM8776_DAC_PL_LL,
.mask2 = WM8776_DAC_PL_RR,
.flags = WM8776_FLAG_STEREO,
},
[WM8776_CTL_DAC_ZC_SW] = {
.name = "Master Zero Cross Detect Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8776_REG_DACCTRL1,
.mask1 = WM8776_DAC_DZCEN,
},
[WM8776_CTL_HP_VOL] = {
.name = "Headphone Playback Volume",
.type = SNDRV_CTL_ELEM_TYPE_INTEGER,
.tlv = wm8776_hp_tlv,
.reg1 = WM8776_REG_HPLVOL,
.reg2 = WM8776_REG_HPRVOL,
.mask1 = WM8776_HPVOL_MASK,
.mask2 = WM8776_HPVOL_MASK,
.min = 0x2f,
.max = 0x7f,
.flags = WM8776_FLAG_STEREO | WM8776_FLAG_VOL_UPDATE,
},
[WM8776_CTL_HP_SW] = {
.name = "Headphone Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8776_REG_PWRDOWN,
.mask1 = WM8776_PWR_HPPD,
.flags = WM8776_FLAG_INVERT,
},
[WM8776_CTL_HP_ZC_SW] = {
.name = "Headphone Zero Cross Detect Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8776_REG_HPLVOL,
.reg2 = WM8776_REG_HPRVOL,
.mask1 = WM8776_VOL_HPZCEN,
.mask2 = WM8776_VOL_HPZCEN,
.flags = WM8776_FLAG_STEREO,
},
[WM8776_CTL_AUX_SW] = {
.name = "AUX Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8776_REG_OUTMUX,
.mask1 = WM8776_OUTMUX_AUX,
},
[WM8776_CTL_BYPASS_SW] = {
.name = "Bypass Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8776_REG_OUTMUX,
.mask1 = WM8776_OUTMUX_BYPASS,
},
[WM8776_CTL_DAC_IZD_SW] = {
.name = "Infinite Zero Detect Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8776_REG_DACCTRL1,
.mask1 = WM8776_DAC_IZD,
},
[WM8776_CTL_PHASE_SW] = {
.name = "Phase Invert Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8776_REG_PHASESWAP,
.reg2 = WM8776_REG_PHASESWAP,
.mask1 = WM8776_PHASE_INVERTL,
.mask2 = WM8776_PHASE_INVERTR,
.flags = WM8776_FLAG_STEREO,
},
[WM8776_CTL_DEEMPH_SW] = {
.name = "Deemphasis Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8776_REG_DACCTRL2,
.mask1 = WM8776_DAC2_DEEMPH,
},
[WM8776_CTL_ADC_VOL] = {
.name = "Input Capture Volume",
.type = SNDRV_CTL_ELEM_TYPE_INTEGER,
.tlv = wm8776_adc_tlv,
.reg1 = WM8776_REG_ADCLVOL,
.reg2 = WM8776_REG_ADCRVOL,
.mask1 = WM8776_ADC_GAIN_MASK,
.mask2 = WM8776_ADC_GAIN_MASK,
.max = 0xff,
.flags = WM8776_FLAG_STEREO | WM8776_FLAG_VOL_UPDATE,
},
[WM8776_CTL_ADC_SW] = {
.name = "Input Capture Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8776_REG_ADCMUX,
.reg2 = WM8776_REG_ADCMUX,
.mask1 = WM8776_ADC_MUTEL,
.mask2 = WM8776_ADC_MUTER,
.flags = WM8776_FLAG_STEREO | WM8776_FLAG_INVERT,
},
[WM8776_CTL_INPUT1_SW] = {
.name = "AIN1 Capture Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8776_REG_ADCMUX,
.mask1 = WM8776_ADC_MUX_AIN1,
},
[WM8776_CTL_INPUT2_SW] = {
.name = "AIN2 Capture Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8776_REG_ADCMUX,
.mask1 = WM8776_ADC_MUX_AIN2,
},
[WM8776_CTL_INPUT3_SW] = {
.name = "AIN3 Capture Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8776_REG_ADCMUX,
.mask1 = WM8776_ADC_MUX_AIN3,
},
[WM8776_CTL_INPUT4_SW] = {
.name = "AIN4 Capture Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8776_REG_ADCMUX,
.mask1 = WM8776_ADC_MUX_AIN4,
},
[WM8776_CTL_INPUT5_SW] = {
.name = "AIN5 Capture Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8776_REG_ADCMUX,
.mask1 = WM8776_ADC_MUX_AIN5,
},
[WM8776_CTL_AGC_SEL] = {
.name = "AGC Select Capture Enum",
.type = SNDRV_CTL_ELEM_TYPE_ENUMERATED,
.enum_names = { "Off", "Limiter", "ALC Right", "ALC Left",
"ALC Stereo" },
.max = 5, /* .enum_names item count */
.set = snd_wm8776_set_agc,
.get = snd_wm8776_get_agc,
},
[WM8776_CTL_LIM_THR] = {
.name = "Limiter Threshold Capture Volume",
.type = SNDRV_CTL_ELEM_TYPE_INTEGER,
.tlv = wm8776_lct_tlv,
.reg1 = WM8776_REG_ALCCTRL1,
.mask1 = WM8776_ALC1_LCT_MASK,
.max = 15,
.flags = WM8776_FLAG_LIM,
},
[WM8776_CTL_LIM_ATK] = {
.name = "Limiter Attack Time Capture Enum",
.type = SNDRV_CTL_ELEM_TYPE_ENUMERATED,
.enum_names = { "0.25 ms", "0.5 ms", "1 ms", "2 ms", "4 ms",
"8 ms", "16 ms", "32 ms", "64 ms", "128 ms", "256 ms" },
.max = 11, /* .enum_names item count */
.reg1 = WM8776_REG_ALCCTRL3,
.mask1 = WM8776_ALC3_ATK_MASK,
.flags = WM8776_FLAG_LIM,
},
[WM8776_CTL_LIM_DCY] = {
.name = "Limiter Decay Time Capture Enum",
.type = SNDRV_CTL_ELEM_TYPE_ENUMERATED,
.enum_names = { "1.2 ms", "2.4 ms", "4.8 ms", "9.6 ms",
"19.2 ms", "38.4 ms", "76.8 ms", "154 ms", "307 ms",
"614 ms", "1.23 s" },
.max = 11, /* .enum_names item count */
.reg1 = WM8776_REG_ALCCTRL3,
.mask1 = WM8776_ALC3_DCY_MASK,
.flags = WM8776_FLAG_LIM,
},
[WM8776_CTL_LIM_TRANWIN] = {
.name = "Limiter Transient Window Capture Enum",
.type = SNDRV_CTL_ELEM_TYPE_ENUMERATED,
.enum_names = { "0 us", "62.5 us", "125 us", "250 us", "500 us",
"1 ms", "2 ms", "4 ms" },
.max = 8, /* .enum_names item count */
.reg1 = WM8776_REG_LIMITER,
.mask1 = WM8776_LIM_TRANWIN_MASK,
.flags = WM8776_FLAG_LIM,
},
[WM8776_CTL_LIM_MAXATTN] = {
.name = "Limiter Maximum Attenuation Capture Volume",
.type = SNDRV_CTL_ELEM_TYPE_INTEGER,
.tlv = wm8776_maxatten_lim_tlv,
.reg1 = WM8776_REG_LIMITER,
.mask1 = WM8776_LIM_MAXATTEN_MASK,
.min = 3,
.max = 12,
.flags = WM8776_FLAG_LIM | WM8776_FLAG_INVERT,
},
[WM8776_CTL_ALC_TGT] = {
.name = "ALC Target Level Capture Volume",
.type = SNDRV_CTL_ELEM_TYPE_INTEGER,
.tlv = wm8776_lct_tlv,
.reg1 = WM8776_REG_ALCCTRL1,
.mask1 = WM8776_ALC1_LCT_MASK,
.max = 15,
.flags = WM8776_FLAG_ALC,
},
[WM8776_CTL_ALC_ATK] = {
.name = "ALC Attack Time Capture Enum",
.type = SNDRV_CTL_ELEM_TYPE_ENUMERATED,
.enum_names = { "8.40 ms", "16.8 ms", "33.6 ms", "67.2 ms",
"134 ms", "269 ms", "538 ms", "1.08 s", "2.15 s",
"4.3 s", "8.6 s" },
.max = 11, /* .enum_names item count */
.reg1 = WM8776_REG_ALCCTRL3,
.mask1 = WM8776_ALC3_ATK_MASK,
.flags = WM8776_FLAG_ALC,
},
[WM8776_CTL_ALC_DCY] = {
.name = "ALC Decay Time Capture Enum",
.type = SNDRV_CTL_ELEM_TYPE_ENUMERATED,
.enum_names = { "33.5 ms", "67.0 ms", "134 ms", "268 ms",
"536 ms", "1.07 s", "2.14 s", "4.29 s", "8.58 s",
"17.2 s", "34.3 s" },
.max = 11, /* .enum_names item count */
.reg1 = WM8776_REG_ALCCTRL3,
.mask1 = WM8776_ALC3_DCY_MASK,
.flags = WM8776_FLAG_ALC,
},
[WM8776_CTL_ALC_MAXGAIN] = {
.name = "ALC Maximum Gain Capture Volume",
.type = SNDRV_CTL_ELEM_TYPE_INTEGER,
.tlv = wm8776_maxgain_tlv,
.reg1 = WM8776_REG_ALCCTRL1,
.mask1 = WM8776_ALC1_MAXGAIN_MASK,
.min = 1,
.max = 7,
.flags = WM8776_FLAG_ALC,
},
[WM8776_CTL_ALC_MAXATTN] = {
.name = "ALC Maximum Attenuation Capture Volume",
.type = SNDRV_CTL_ELEM_TYPE_INTEGER,
.tlv = wm8776_maxatten_alc_tlv,
.reg1 = WM8776_REG_LIMITER,
.mask1 = WM8776_LIM_MAXATTEN_MASK,
.min = 10,
.max = 15,
.flags = WM8776_FLAG_ALC | WM8776_FLAG_INVERT,
},
[WM8776_CTL_ALC_HLD] = {
.name = "ALC Hold Time Capture Enum",
.type = SNDRV_CTL_ELEM_TYPE_ENUMERATED,
.enum_names = { "0 ms", "2.67 ms", "5.33 ms", "10.6 ms",
"21.3 ms", "42.7 ms", "85.3 ms", "171 ms", "341 ms",
"683 ms", "1.37 s", "2.73 s", "5.46 s", "10.9 s",
"21.8 s", "43.7 s" },
.max = 16, /* .enum_names item count */
.reg1 = WM8776_REG_ALCCTRL2,
.mask1 = WM8776_ALC2_HOLD_MASK,
.flags = WM8776_FLAG_ALC,
},
[WM8776_CTL_NGT_SW] = {
.name = "Noise Gate Capture Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8776_REG_NOISEGATE,
.mask1 = WM8776_NGAT_ENABLE,
.flags = WM8776_FLAG_ALC,
},
[WM8776_CTL_NGT_THR] = {
.name = "Noise Gate Threshold Capture Volume",
.type = SNDRV_CTL_ELEM_TYPE_INTEGER,
.tlv = wm8776_ngth_tlv,
.reg1 = WM8776_REG_NOISEGATE,
.mask1 = WM8776_NGAT_THR_MASK,
.max = 7,
.flags = WM8776_FLAG_ALC,
},
};
/* exported functions */
void snd_wm8776_init(struct snd_wm8776 *wm)
{
int i;
static const u16 default_values[] = {
0x000, 0x100, 0x000,
0x000, 0x100, 0x000,
0x000, 0x090, 0x000, 0x000,
0x022, 0x022, 0x022,
0x008, 0x0cf, 0x0cf, 0x07b, 0x000,
0x032, 0x000, 0x0a6, 0x001, 0x001
};
memcpy(wm->ctl, snd_wm8776_default_ctl, sizeof(wm->ctl));
snd_wm8776_write(wm, WM8776_REG_RESET, 0x00); /* reset */
udelay(10);
/* load defaults */
for (i = 0; i < ARRAY_SIZE(default_values); i++)
snd_wm8776_write(wm, i, default_values[i]);
}
void snd_wm8776_resume(struct snd_wm8776 *wm)
{
int i;
for (i = 0; i < WM8776_REG_COUNT; i++)
snd_wm8776_write(wm, i, wm->regs[i]);
}
void snd_wm8776_set_power(struct snd_wm8776 *wm, u16 power)
{
snd_wm8776_write(wm, WM8776_REG_PWRDOWN, power);
}
void snd_wm8776_volume_restore(struct snd_wm8776 *wm)
{
u16 val = wm->regs[WM8776_REG_DACRVOL];
/* restore volume after MCLK stopped */
snd_wm8776_write(wm, WM8776_REG_DACRVOL, val | WM8776_VOL_UPDATE);
}
/* mixer callbacks */
static int snd_wm8776_volume_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
struct snd_wm8776 *wm = snd_kcontrol_chip(kcontrol);
int n = kcontrol->private_value;
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = (wm->ctl[n].flags & WM8776_FLAG_STEREO) ? 2 : 1;
uinfo->value.integer.min = wm->ctl[n].min;
uinfo->value.integer.max = wm->ctl[n].max;
return 0;
}
static int snd_wm8776_enum_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
struct snd_wm8776 *wm = snd_kcontrol_chip(kcontrol);
int n = kcontrol->private_value;
return snd_ctl_enum_info(uinfo, 1, wm->ctl[n].max,
wm->ctl[n].enum_names);
}
static int snd_wm8776_ctl_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_wm8776 *wm = snd_kcontrol_chip(kcontrol);
int n = kcontrol->private_value;
u16 val1, val2;
if (wm->ctl[n].get)
wm->ctl[n].get(wm, &val1, &val2);
else {
val1 = wm->regs[wm->ctl[n].reg1] & wm->ctl[n].mask1;
val1 >>= __ffs(wm->ctl[n].mask1);
if (wm->ctl[n].flags & WM8776_FLAG_STEREO) {
val2 = wm->regs[wm->ctl[n].reg2] & wm->ctl[n].mask2;
val2 >>= __ffs(wm->ctl[n].mask2);
if (wm->ctl[n].flags & WM8776_FLAG_VOL_UPDATE)
val2 &= ~WM8776_VOL_UPDATE;
}
}
if (wm->ctl[n].flags & WM8776_FLAG_INVERT) {
val1 = wm->ctl[n].max - (val1 - wm->ctl[n].min);
if (wm->ctl[n].flags & WM8776_FLAG_STEREO)
val2 = wm->ctl[n].max - (val2 - wm->ctl[n].min);
}
ucontrol->value.integer.value[0] = val1;
if (wm->ctl[n].flags & WM8776_FLAG_STEREO)
ucontrol->value.integer.value[1] = val2;
return 0;
}
static int snd_wm8776_ctl_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_wm8776 *wm = snd_kcontrol_chip(kcontrol);
int n = kcontrol->private_value;
u16 val, regval1, regval2;
/* this also works for enum because value is a union */
regval1 = ucontrol->value.integer.value[0];
regval2 = ucontrol->value.integer.value[1];
if (wm->ctl[n].flags & WM8776_FLAG_INVERT) {
regval1 = wm->ctl[n].max - (regval1 - wm->ctl[n].min);
regval2 = wm->ctl[n].max - (regval2 - wm->ctl[n].min);
}
if (wm->ctl[n].set)
wm->ctl[n].set(wm, regval1, regval2);
else {
val = wm->regs[wm->ctl[n].reg1] & ~wm->ctl[n].mask1;
val |= regval1 << __ffs(wm->ctl[n].mask1);
/* both stereo controls in one register */
if (wm->ctl[n].flags & WM8776_FLAG_STEREO &&
wm->ctl[n].reg1 == wm->ctl[n].reg2) {
val &= ~wm->ctl[n].mask2;
val |= regval2 << __ffs(wm->ctl[n].mask2);
}
snd_wm8776_write(wm, wm->ctl[n].reg1, val);
/* stereo controls in different registers */
if (wm->ctl[n].flags & WM8776_FLAG_STEREO &&
wm->ctl[n].reg1 != wm->ctl[n].reg2) {
val = wm->regs[wm->ctl[n].reg2] & ~wm->ctl[n].mask2;
val |= regval2 << __ffs(wm->ctl[n].mask2);
if (wm->ctl[n].flags & WM8776_FLAG_VOL_UPDATE)
val |= WM8776_VOL_UPDATE;
snd_wm8776_write(wm, wm->ctl[n].reg2, val);
}
}
return 0;
}
static int snd_wm8776_add_control(struct snd_wm8776 *wm, int num)
{
struct snd_kcontrol_new cont;
struct snd_kcontrol *ctl;
memset(&cont, 0, sizeof(cont));
cont.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
cont.private_value = num;
cont.name = wm->ctl[num].name;
cont.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
if (wm->ctl[num].flags & WM8776_FLAG_LIM ||
wm->ctl[num].flags & WM8776_FLAG_ALC)
cont.access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
cont.tlv.p = NULL;
cont.get = snd_wm8776_ctl_get;
cont.put = snd_wm8776_ctl_put;
switch (wm->ctl[num].type) {
case SNDRV_CTL_ELEM_TYPE_INTEGER:
cont.info = snd_wm8776_volume_info;
cont.access |= SNDRV_CTL_ELEM_ACCESS_TLV_READ;
cont.tlv.p = wm->ctl[num].tlv;
break;
case SNDRV_CTL_ELEM_TYPE_BOOLEAN:
wm->ctl[num].max = 1;
if (wm->ctl[num].flags & WM8776_FLAG_STEREO)
cont.info = snd_ctl_boolean_stereo_info;
else
cont.info = snd_ctl_boolean_mono_info;
break;
case SNDRV_CTL_ELEM_TYPE_ENUMERATED:
cont.info = snd_wm8776_enum_info;
break;
default:
return -EINVAL;
}
ctl = snd_ctl_new1(&cont, wm);
if (!ctl)
return -ENOMEM;
return snd_ctl_add(wm->card, ctl);
}
int snd_wm8776_build_controls(struct snd_wm8776 *wm)
{
int err, i;
for (i = 0; i < WM8776_CTL_COUNT; i++)
if (wm->ctl[i].name) {
err = snd_wm8776_add_control(wm, i);
if (err < 0)
return err;
}
return 0;
}
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