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linux-next/sound/pci/ice1712/wm8766.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 WM8766 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 "wm8766.h"
/* low-level access */
static void snd_wm8766_write(struct snd_wm8766 *wm, u16 addr, u16 data)
{
if (addr < WM8766_REG_COUNT)
wm->regs[addr] = data;
wm->ops.write(wm, addr, data);
}
/* mixer controls */
static const DECLARE_TLV_DB_SCALE(wm8766_tlv, -12750, 50, 1);
static struct snd_wm8766_ctl snd_wm8766_default_ctl[WM8766_CTL_COUNT] = {
[WM8766_CTL_CH1_VOL] = {
.name = "Channel 1 Playback Volume",
.type = SNDRV_CTL_ELEM_TYPE_INTEGER,
.tlv = wm8766_tlv,
.reg1 = WM8766_REG_DACL1,
.reg2 = WM8766_REG_DACR1,
.mask1 = WM8766_VOL_MASK,
.mask2 = WM8766_VOL_MASK,
.max = 0xff,
.flags = WM8766_FLAG_STEREO | WM8766_FLAG_VOL_UPDATE,
},
[WM8766_CTL_CH2_VOL] = {
.name = "Channel 2 Playback Volume",
.type = SNDRV_CTL_ELEM_TYPE_INTEGER,
.tlv = wm8766_tlv,
.reg1 = WM8766_REG_DACL2,
.reg2 = WM8766_REG_DACR2,
.mask1 = WM8766_VOL_MASK,
.mask2 = WM8766_VOL_MASK,
.max = 0xff,
.flags = WM8766_FLAG_STEREO | WM8766_FLAG_VOL_UPDATE,
},
[WM8766_CTL_CH3_VOL] = {
.name = "Channel 3 Playback Volume",
.type = SNDRV_CTL_ELEM_TYPE_INTEGER,
.tlv = wm8766_tlv,
.reg1 = WM8766_REG_DACL3,
.reg2 = WM8766_REG_DACR3,
.mask1 = WM8766_VOL_MASK,
.mask2 = WM8766_VOL_MASK,
.max = 0xff,
.flags = WM8766_FLAG_STEREO | WM8766_FLAG_VOL_UPDATE,
},
[WM8766_CTL_CH1_SW] = {
.name = "Channel 1 Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8766_REG_DACCTRL2,
.mask1 = WM8766_DAC2_MUTE1,
.flags = WM8766_FLAG_INVERT,
},
[WM8766_CTL_CH2_SW] = {
.name = "Channel 2 Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8766_REG_DACCTRL2,
.mask1 = WM8766_DAC2_MUTE2,
.flags = WM8766_FLAG_INVERT,
},
[WM8766_CTL_CH3_SW] = {
.name = "Channel 3 Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8766_REG_DACCTRL2,
.mask1 = WM8766_DAC2_MUTE3,
.flags = WM8766_FLAG_INVERT,
},
[WM8766_CTL_PHASE1_SW] = {
.name = "Channel 1 Phase Invert Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8766_REG_IFCTRL,
.mask1 = WM8766_PHASE_INVERT1,
},
[WM8766_CTL_PHASE2_SW] = {
.name = "Channel 2 Phase Invert Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8766_REG_IFCTRL,
.mask1 = WM8766_PHASE_INVERT2,
},
[WM8766_CTL_PHASE3_SW] = {
.name = "Channel 3 Phase Invert Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8766_REG_IFCTRL,
.mask1 = WM8766_PHASE_INVERT3,
},
[WM8766_CTL_DEEMPH1_SW] = {
.name = "Channel 1 Deemphasis Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8766_REG_DACCTRL2,
.mask1 = WM8766_DAC2_DEEMP1,
},
[WM8766_CTL_DEEMPH2_SW] = {
.name = "Channel 2 Deemphasis Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8766_REG_DACCTRL2,
.mask1 = WM8766_DAC2_DEEMP2,
},
[WM8766_CTL_DEEMPH3_SW] = {
.name = "Channel 3 Deemphasis Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8766_REG_DACCTRL2,
.mask1 = WM8766_DAC2_DEEMP3,
},
[WM8766_CTL_IZD_SW] = {
.name = "Infinite Zero Detect Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8766_REG_DACCTRL1,
.mask1 = WM8766_DAC_IZD,
},
[WM8766_CTL_ZC_SW] = {
.name = "Zero Cross Detect Playback Switch",
.type = SNDRV_CTL_ELEM_TYPE_BOOLEAN,
.reg1 = WM8766_REG_DACCTRL2,
.mask1 = WM8766_DAC2_ZCD,
.flags = WM8766_FLAG_INVERT,
},
};
/* exported functions */
void snd_wm8766_init(struct snd_wm8766 *wm)
{
int i;
static const u16 default_values[] = {
0x000, 0x100,
0x120, 0x000,
0x000, 0x100, 0x000, 0x100, 0x000,
0x000, 0x080,
};
memcpy(wm->ctl, snd_wm8766_default_ctl, sizeof(wm->ctl));
snd_wm8766_write(wm, WM8766_REG_RESET, 0x00); /* reset */
udelay(10);
/* load defaults */
for (i = 0; i < ARRAY_SIZE(default_values); i++)
snd_wm8766_write(wm, i, default_values[i]);
}
void snd_wm8766_resume(struct snd_wm8766 *wm)
{
int i;
for (i = 0; i < WM8766_REG_COUNT; i++)
snd_wm8766_write(wm, i, wm->regs[i]);
}
void snd_wm8766_set_if(struct snd_wm8766 *wm, u16 dac)
{
u16 val = wm->regs[WM8766_REG_IFCTRL] & ~WM8766_IF_MASK;
dac &= WM8766_IF_MASK;
snd_wm8766_write(wm, WM8766_REG_IFCTRL, val | dac);
}
void snd_wm8766_volume_restore(struct snd_wm8766 *wm)
{
u16 val = wm->regs[WM8766_REG_DACR1];
/* restore volume after MCLK stopped */
snd_wm8766_write(wm, WM8766_REG_DACR1, val | WM8766_VOL_UPDATE);
}
/* mixer callbacks */
static int snd_wm8766_volume_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
struct snd_wm8766 *wm = snd_kcontrol_chip(kcontrol);
int n = kcontrol->private_value;
uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
uinfo->count = (wm->ctl[n].flags & WM8766_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_wm8766_enum_info(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_info *uinfo)
{
struct snd_wm8766 *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_wm8766_ctl_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_wm8766 *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 & WM8766_FLAG_STEREO) {
val2 = wm->regs[wm->ctl[n].reg2] & wm->ctl[n].mask2;
val2 >>= __ffs(wm->ctl[n].mask2);
if (wm->ctl[n].flags & WM8766_FLAG_VOL_UPDATE)
val2 &= ~WM8766_VOL_UPDATE;
}
}
if (wm->ctl[n].flags & WM8766_FLAG_INVERT) {
val1 = wm->ctl[n].max - (val1 - wm->ctl[n].min);
if (wm->ctl[n].flags & WM8766_FLAG_STEREO)
val2 = wm->ctl[n].max - (val2 - wm->ctl[n].min);
}
ucontrol->value.integer.value[0] = val1;
if (wm->ctl[n].flags & WM8766_FLAG_STEREO)
ucontrol->value.integer.value[1] = val2;
return 0;
}
static int snd_wm8766_ctl_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_wm8766 *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 & WM8766_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 & WM8766_FLAG_STEREO &&
wm->ctl[n].reg1 == wm->ctl[n].reg2) {
val &= ~wm->ctl[n].mask2;
val |= regval2 << __ffs(wm->ctl[n].mask2);
}
snd_wm8766_write(wm, wm->ctl[n].reg1, val);
/* stereo controls in different registers */
if (wm->ctl[n].flags & WM8766_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 & WM8766_FLAG_VOL_UPDATE)
val |= WM8766_VOL_UPDATE;
snd_wm8766_write(wm, wm->ctl[n].reg2, val);
}
}
return 0;
}
static int snd_wm8766_add_control(struct snd_wm8766 *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 & WM8766_FLAG_LIM ||
wm->ctl[num].flags & WM8766_FLAG_ALC)
cont.access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
cont.tlv.p = NULL;
cont.get = snd_wm8766_ctl_get;
cont.put = snd_wm8766_ctl_put;
switch (wm->ctl[num].type) {
case SNDRV_CTL_ELEM_TYPE_INTEGER:
cont.info = snd_wm8766_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 & WM8766_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_wm8766_enum_info;
break;
default:
return -EINVAL;
}
ctl = snd_ctl_new1(&cont, wm);
if (!ctl)
return -ENOMEM;
wm->ctl[num].kctl = ctl;
return snd_ctl_add(wm->card, ctl);
}
int snd_wm8766_build_controls(struct snd_wm8766 *wm)
{
int err, i;
for (i = 0; i < WM8766_CTL_COUNT; i++)
if (wm->ctl[i].name) {
err = snd_wm8766_add_control(wm, i);
if (err < 0)
return err;
}
return 0;
}
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