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ALSA: hda - add beep_mode module parameter 

The beep_mode parameter for snd-hda-intel module allows to choose among
different digital beep device registation to the input layer.

0 = do not register to the input layer
1 = register to the input layer all time
2 = use "Beep Switch" control exported to user space mixer applications

Also, introduce CONFIG_SND_HDA_INPUT_BEEP_MODE for default value.

Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Jaroslav Kysela 2009-11-13 18:41:52 +01:00 committed by Takashi Iwai
parent 5f81669750
commit 2dca0bba70
5 changed files with 48 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
sound/pci/hda/Kconfig
View File

@ -38,6 +38,17 @@ config SND_HDA_INPUT_BEEP
Say Y here to build a digital beep interface for HD-audio
driver. This interface is used to generate digital beeps.
config SND_HDA_INPUT_BEEP_MODE
int "Digital beep registration mode (0=off, 1=on, 2=mute sw on/off)"
depends on SND_HDA_INPUT_BEEP=y
default "1"
range 0 2
help
Set 0 to disable the digital beep interface for HD-audio by default.
Set 1 to always enable the digital beep interface for HD-audio by
default. Set 2 to control the beep device registration to input
layer using a "Beep Switch" in mixer applications.
config SND_HDA_INPUT_JACK
bool "Support jack plugging notification via input layer"
depends on INPUT=y || INPUT=SND_HDA_INTEL

21
sound/pci/hda/hda_beep.c
View File

@ -190,14 +190,19 @@ int snd_hda_enable_beep_device(struct hda_codec *codec, int enable)
return 0;
if (beep->enabled != enable) {
beep->enabled = enable;
if (enable) {
cancel_delayed_work(&beep->unregister_work);
schedule_work(&beep->register_work);
} else {
if (!enable) {
/* turn off beep */
snd_hda_codec_write_cache(beep->codec, beep->nid, 0,
AC_VERB_SET_BEEP_CONTROL, 0);
schedule_delayed_work(&beep->unregister_work, HZ);
}
if (beep->mode == HDA_BEEP_MODE_SWREG) {
if (enable) {
cancel_delayed_work(&beep->unregister_work);
schedule_work(&beep->register_work);
} else {
schedule_delayed_work(&beep->unregister_work,
HZ);
}
}
return 1;
}
@ -223,6 +228,7 @@ int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
beep->nid = nid;
beep->codec = codec;
beep->mode = codec->beep_mode;
codec->beep = beep;
INIT_WORK(&beep->register_work, &snd_hda_do_register);
@ -230,6 +236,11 @@ int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
INIT_WORK(&beep->beep_work, &snd_hda_generate_beep);
mutex_init(&beep->mutex);
if (beep->mode == HDA_BEEP_MODE_ON) {
beep->enabled = 1;
snd_hda_do_register(&beep->register_work);
}
return 0;
}
EXPORT_SYMBOL_HDA(snd_hda_attach_beep_device);

5
sound/pci/hda/hda_beep.h
View File

@ -24,10 +24,15 @@
#include "hda_codec.h"
#define HDA_BEEP_MODE_ON 0
#define HDA_BEEP_MODE_OFF 1
#define HDA_BEEP_MODE_SWREG 2
/* beep information */
struct hda_beep {
struct input_dev *dev;
struct hda_codec *codec;
unsigned int mode;
char phys[32];
int tone;
hda_nid_t nid;

1
sound/pci/hda/hda_codec.h
View File

@ -772,6 +772,7 @@ struct hda_codec {
/* beep device */
struct hda_beep *beep;
unsigned int beep_mode;
/* widget capabilities cache */
unsigned int num_nodes;

15
sound/pci/hda/hda_intel.c
View File

@ -64,6 +64,10 @@ static int enable_msi = -1;
#ifdef CONFIG_SND_HDA_PATCH_LOADER
static char *patch[SNDRV_CARDS];
#endif
#ifdef CONFIG_SND_HDA_INPUT_BEEP
static int beep_mode[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] =
CONFIG_SND_HDA_INPUT_BEEP_MODE};
#endif
module_param_array(index, int, NULL, 0444);
MODULE_PARM_DESC(index, "Index value for Intel HD audio interface.");
@ -91,6 +95,11 @@ MODULE_PARM_DESC(enable_msi, "Enable Message Signaled Interrupt (MSI)");
module_param_array(patch, charp, NULL, 0444);
MODULE_PARM_DESC(patch, "Patch file for Intel HD audio interface.");
#endif
#ifdef CONFIG_SND_HDA_INPUT_BEEP
module_param_array(beep_mode, int, NULL, 0444);
MODULE_PARM_DESC(beep_mode, "Select HDA Beep registration mode "
"(0=off, 1=on, 2=mute switch on/off) (default=1).");
#endif
#ifdef CONFIG_SND_HDA_POWER_SAVE
static int power_save = CONFIG_SND_HDA_POWER_SAVE_DEFAULT;
@ -404,6 +413,7 @@ struct azx {
unsigned short codec_mask;
int codec_probe_mask; /* copied from probe_mask option */
struct hda_bus *bus;
unsigned int beep_mode;
/* CORB/RIRB */
struct azx_rb corb;
@ -1404,6 +1414,7 @@ static int __devinit azx_codec_create(struct azx *chip, const char *model)
err = snd_hda_codec_new(chip->bus, c, &codec);
if (err < 0)
continue;
codec->beep_mode = chip->beep_mode;
codecs++;
}
}
@ -2579,6 +2590,10 @@ static int __devinit azx_probe(struct pci_dev *pci,
goto out_free;
card->private_data = chip;
#ifdef CONFIG_SND_HDA_INPUT_BEEP
chip->beep_mode = beep_mode[dev];
#endif
/* create codec instances */
err = azx_codec_create(chip, model[dev]);
if (err < 0)