/**
* snd_hda_attach_beep_device - Attach a beep input device
* @codec: the HDA codec
* @nid: beep NID
*
* Attach a beep object to the given widget. If beep hint is turned off
* explicitly or beep_mode of the codec is turned off, this doesn't nothing.
*
* The attached beep device has to be registered via
* snd_hda_register_beep_device() and released via snd_hda_detach_beep_device()
* appropriately.
*
* Currently, only one beep device is allowed to each codec.
*/
int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
{
struct hda_beep *beep;
int err;
if (!snd_hda_get_bool_hint(codec, "beep"))
return 0; /* disabled explicitly by hints */
if (codec->beep_mode == HDA_BEEP_MODE_OFF)
return 0; /* disabled by module option */
beep = kzalloc(sizeof(*beep), GFP_KERNEL);
if (beep == NULL)
return -ENOMEM;
snprintf(beep->phys, sizeof(beep->phys),
"card%d/codec#%d/beep0", codec->card->number, codec->addr);
/* enable linear scale */
snd_hda_codec_write_cache(codec, nid, 0,
AC_VERB_SET_DIGI_CONVERT_2, 0x01);
beep->nid = nid;
beep->codec = codec;
codec->beep = beep;
INIT_WORK(&beep->beep_work, &snd_hda_generate_beep);
mutex_init(&beep->mutex);
err = snd_hda_do_attach(beep);
if (err < 0) {
kfree(beep);
codec->beep = NULL;
return err;
}
return 0;
}
int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
{
struct hda_beep *beep;
if (!snd_hda_get_bool_hint(codec, "beep"))
return 0;
if (codec->beep_mode == HDA_BEEP_MODE_OFF)
return 0;
beep = kzalloc(sizeof(*beep), GFP_KERNEL);
if (beep == NULL)
return -ENOMEM;
snprintf(beep->phys, sizeof(beep->phys),
"card%d/codec#%d/beep0", codec->bus->card->number, codec->addr);
snd_hda_codec_write(codec, nid, 0,
AC_VERB_SET_DIGI_CONVERT_2, 0x01);
beep->nid = nid;
beep->codec = codec;
beep->mode = codec->beep_mode;
codec->beep = beep;
INIT_WORK(&beep->register_work, &snd_hda_do_register);
INIT_DELAYED_WORK(&beep->unregister_work, &snd_hda_do_unregister);
INIT_WORK(&beep->beep_work, &snd_hda_generate_beep);
mutex_init(&beep->mutex);
if (beep->mode == HDA_BEEP_MODE_ON) {
int err = snd_hda_do_attach(beep);
if (err < 0) {
kfree(beep);
codec->beep = NULL;
return err;
}
}
return 0;
}
/**
* snd_hda_attach_beep_device - Attach a beep input device
* @codec: the HDA codec
* @nid: beep NID
*
* Attach a beep object to the given widget. If beep hint is turned off
* explicitly or beep_mode of the codec is turned off, this doesn't nothing.
*
* Currently, only one beep device is allowed to each codec.
*/
int snd_hda_attach_beep_device(struct hda_codec *codec, int nid)
{
static struct snd_device_ops ops = {
.dev_register = beep_dev_register,
.dev_disconnect = beep_dev_disconnect,
.dev_free = beep_dev_free,
};
struct input_dev *input_dev;
struct hda_beep *beep;
int err;
if (!snd_hda_get_bool_hint(codec, "beep"))
return 0; /* disabled explicitly by hints */
if (codec->beep_mode == HDA_BEEP_MODE_OFF)
return 0; /* disabled by module option */
beep = kzalloc(sizeof(*beep), GFP_KERNEL);
if (beep == NULL)
return -ENOMEM;
snprintf(beep->phys, sizeof(beep->phys),
"card%d/codec#%d/beep0", codec->card->number, codec->addr);
/* enable linear scale */
snd_hda_codec_write_cache(codec, nid, 0,
AC_VERB_SET_DIGI_CONVERT_2, 0x01);
beep->nid = nid;
beep->codec = codec;
codec->beep = beep;
INIT_WORK(&beep->beep_work, &snd_hda_generate_beep);
mutex_init(&beep->mutex);
input_dev = input_allocate_device();
if (!input_dev) {
err = -ENOMEM;
goto err_free;
}
/* setup digital beep device */
input_dev->name = "HDA Digital PCBeep";
input_dev->phys = beep->phys;
input_dev->id.bustype = BUS_PCI;
input_dev->dev.parent = &codec->card->card_dev;
input_dev->id.vendor = codec->core.vendor_id >> 16;
input_dev->id.product = codec->core.vendor_id & 0xffff;
input_dev->id.version = 0x01;
input_dev->evbit[0] = BIT_MASK(EV_SND);
input_dev->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
input_dev->event = snd_hda_beep_event;
input_set_drvdata(input_dev, beep);
beep->dev = input_dev;
err = snd_device_new(codec->card, SNDRV_DEV_JACK, beep, &ops);
if (err < 0)
goto err_input;
return 0;
err_input:
input_free_device(beep->dev);
err_free:
kfree(beep);
codec->beep = NULL;
return err;
}
