347 lines
9.6 KiB
C
347 lines
9.6 KiB
C
/*
|
|
* ALSA driver for ICEnsemble VT17xx
|
|
*
|
|
* Lowlevel functions for WM8766 codec
|
|
*
|
|
* Copyright (c) 2012 Ondrej Zary <linux@rainbow-software.org>
|
|
*
|
|
* 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
|
|
*
|
|
*/
|
|
|
|
#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;
|
|
}
|