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[ALSA] ca0106: Add analog mute controls for cards with SPI DAC

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Add four mute controls for the analog output channels for cards that use
an SPI DAC, like the SB0570 SB Live! 24-bit / Audigy SE.  The Wolfson DAC
doesn't support muting left/right so the controls are mono.
The chip state struct gets a 32-byte array to act as a shadow of the spi
dac registers.  Only two registers are used for mute, but more would be
needed for analog gain, de-emphasis, DAC power down, phase inversion, and
other features.

Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Trent Piepho 2007-07-24 12:06:16 +02:00 committed by Jaroslav Kysela
parent 69b311a4da
commit b18cd538a9
3 changed files with 122 additions and 5 deletions
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47
sound/pci/ca0106/ca0106.h
View file

@ -1,7 +1,7 @@
/*
* Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
* Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
* Version: 0.0.21
* Version: 0.0.22
*
* FEATURES currently supported:
* See ca0106_main.c for features.
@ -47,6 +47,8 @@
* Added GPIO info for SB Live 24bit.
* 0.0.21
* Implement support for Line-in capture on SB Live 24bit.
* 0.0.22
* Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
*
*
* This code was initally based on code from ALSA's emu10k1x.c which is:
@ -552,6 +554,44 @@
#define CONTROL_CENTER_LFE_CHANNEL 1
#define CONTROL_UNKNOWN_CHANNEL 2
/* Based on WM8768 Datasheet Rev 4.2 page 32 */
#define SPI_REG_MASK 0x1ff /* 16-bit SPI writes have a 7-bit address */
#define SPI_REG_SHIFT 9 /* followed by 9 bits of data */
/* They really do label the bit for the 4th channel "4" and not "3" */
#define SPI_DMUTE0_REG 9
#define SPI_DMUTE1_REG 9
#define SPI_DMUTE2_REG 9
#define SPI_DMUTE4_REG 15
#define SPI_DMUTE0_BIT 3
#define SPI_DMUTE1_BIT 4
#define SPI_DMUTE2_BIT 5
#define SPI_DMUTE4_BIT 2
#define SPI_PHASE0_REG 3
#define SPI_PHASE1_REG 3
#define SPI_PHASE2_REG 3
#define SPI_PHASE4_REG 15
#define SPI_PHASE0_BIT 6
#define SPI_PHASE1_BIT 7
#define SPI_PHASE2_BIT 8
#define SPI_PHASE4_BIT 3
#define SPI_PDWN_REG 2 /* power down all DACs */
#define SPI_PDWN_BIT 2
#define SPI_DACD0_REG 10 /* power down individual DACs */
#define SPI_DACD1_REG 10
#define SPI_DACD2_REG 10
#define SPI_DACD4_REG 15
#define SPI_DACD0_BIT 1
#define SPI_DACD1_BIT 2
#define SPI_DACD2_BIT 3
#define SPI_DACD4_BIT 1
#define SPI_PWRDNALL_REG 10 /* power down everything */
#define SPI_PWRDNALL_BIT 4
#include "ca_midi.h"
struct snd_ca0106;
@ -611,6 +651,8 @@ struct snd_ca0106 {
struct snd_ca_midi midi;
struct snd_ca_midi midi2;
u16 spi_dac_reg[16];
};
int snd_ca0106_mixer(struct snd_ca0106 *emu);
@ -627,4 +669,5 @@ void snd_ca0106_ptr_write(struct snd_ca0106 *emu,
int snd_ca0106_i2c_write(struct snd_ca0106 *emu, u32 reg, u32 value);
int snd_ca0106_spi_write(struct snd_ca0106 * emu,
unsigned int data);

11
sound/pci/ca0106/ca0106_main.c
View file

@ -1,7 +1,7 @@
/*
* Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
* Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
* Version: 0.0.23
* Version: 0.0.24
*
* FEATURES currently supported:
* Front, Rear and Center/LFE.
@ -79,6 +79,8 @@
* Add support for MSI K8N Diamond Motherboard with onboard SB Live 24bit without AC97. From kiksen, bug #901
* 0.0.23
* Implement support for Line-in capture on SB Live 24bit.
* 0.0.24
* Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
*
* BUGS:
* Some stability problems when unloading the snd-ca0106 kernel module.
@ -1484,8 +1486,13 @@ static int __devinit snd_ca0106_create(int dev, struct snd_card *card,
int size, n;
size = ARRAY_SIZE(spi_dac_init);
for (n=0; n < size; n++)
for (n = 0; n < size; n++) {
int reg = spi_dac_init[n] >> SPI_REG_SHIFT;
snd_ca0106_spi_write(chip, spi_dac_init[n]);
if (reg < ARRAY_SIZE(chip->spi_dac_reg))
chip->spi_dac_reg[reg] = spi_dac_init[n];
}
}
if ((err = snd_device_new(card, SNDRV_DEV_LOWLEVEL,

69
sound/pci/ca0106/ca0106_mixer.c
View file

@ -1,7 +1,7 @@
/*
* Copyright (c) 2004 James Courtier-Dutton <James@superbug.demon.co.uk>
* Driver CA0106 chips. e.g. Sound Blaster Audigy LS and Live 24bit
* Version: 0.0.17
* Version: 0.0.18
*
* FEATURES currently supported:
* See ca0106_main.c for features.
@ -39,6 +39,8 @@
* Modified Copyright message.
* 0.0.17
* Implement Mic and Line in Capture.
* 0.0.18
* Add support for mute control on SB Live 24bit (cards w/ SPI DAC)
*
* This code was initally based on code from ALSA's emu10k1x.c which is:
* Copyright (c) by Francisco Moraes <fmoraes@nc.rr.com>
@ -462,6 +464,42 @@ static int snd_ca0106_i2c_volume_put(struct snd_kcontrol *kcontrol,
return change;
}
#define spi_mute_info snd_ctl_boolean_mono_info
static int spi_mute_get(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol);
unsigned int reg = kcontrol->private_value >> SPI_REG_SHIFT;
unsigned int bit = kcontrol->private_value & SPI_REG_MASK;
ucontrol->value.integer.value[0] = !(emu->spi_dac_reg[reg] & bit);
return 0;
}
static int spi_mute_put(struct snd_kcontrol *kcontrol,
struct snd_ctl_elem_value *ucontrol)
{
struct snd_ca0106 *emu = snd_kcontrol_chip(kcontrol);
unsigned int reg = kcontrol->private_value >> SPI_REG_SHIFT;
unsigned int bit = kcontrol->private_value & SPI_REG_MASK;
int ret;
ret = emu->spi_dac_reg[reg] & bit;
if (ucontrol->value.integer.value[0]) {
if (!ret) /* bit already cleared, do nothing */
return 0;
emu->spi_dac_reg[reg] &= ~bit;
} else {
if (ret) /* bit already set, do nothing */
return 0;
emu->spi_dac_reg[reg] |= bit;
}
ret = snd_ca0106_spi_write(emu, emu->spi_dac_reg[reg]);
return ret ? -1 : 1;
}
#define CA_VOLUME(xname,chid,reg) \
{ \
.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
@ -554,6 +592,28 @@ static struct snd_kcontrol_new snd_ca0106_volume_i2c_adc_ctls[] __devinitdata =
I2C_VOLUME("Aux Capture Volume", 3),
};
#define SPI_SWITCH(xname,reg,bit) \
{ \
.iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, \
.access = SNDRV_CTL_ELEM_ACCESS_READWRITE, \
.info = spi_mute_info, \
.get = spi_mute_get, \
.put = spi_mute_put, \
.private_value = (reg<<SPI_REG_SHIFT) | (1<<bit) \
}
static struct snd_kcontrol_new snd_ca0106_volume_spi_dac_ctls[]
__devinitdata = {
SPI_SWITCH("Analog Front Playback Switch",
SPI_DMUTE4_REG, SPI_DMUTE4_BIT),
SPI_SWITCH("Analog Rear Playback Switch",
SPI_DMUTE0_REG, SPI_DMUTE0_BIT),
SPI_SWITCH("Analog Center/LFE Playback Switch",
SPI_DMUTE2_REG, SPI_DMUTE2_BIT),
SPI_SWITCH("Analog Side Playback Switch",
SPI_DMUTE1_REG, SPI_DMUTE1_BIT),
};
static int __devinit remove_ctl(struct snd_card *card, const char *name)
{
struct snd_ctl_elem_id id;
@ -650,6 +710,13 @@ int __devinit snd_ca0106_mixer(struct snd_ca0106 *emu)
if (err < 0)
return err;
}
if (emu->details->spi_dac == 1) {
for (i = 0; i < ARRAY_SIZE(snd_ca0106_volume_spi_dac_ctls); i++) {
err = snd_ctl_add(card, snd_ctl_new1(&snd_ca0106_volume_spi_dac_ctls[i], emu));
if (err < 0)
return err;
}
}
return 0;
}