diff options
Diffstat (limited to 'sound/pci/hda/hda_beep.c')
| -rw-r--r-- | sound/pci/hda/hda_beep.c | 39 |
1 files changed, 27 insertions, 12 deletions
diff --git a/sound/pci/hda/hda_beep.c b/sound/pci/hda/hda_beep.c index 0849aac449f..63c99090a4e 100644 --- a/sound/pci/hda/hda_beep.c +++ b/sound/pci/hda/hda_beep.c @@ -39,13 +39,23 @@ static void snd_hda_generate_beep(struct work_struct *work) struct hda_beep *beep = container_of(work, struct hda_beep, beep_work); struct hda_codec *codec = beep->codec; + int tone; if (!beep->enabled) return; + tone = beep->tone; + if (tone && !beep->playing) { + snd_hda_power_up(codec); + beep->playing = 1; + } /* generate tone */ snd_hda_codec_write(codec, beep->nid, 0, - AC_VERB_SET_BEEP_CONTROL, beep->tone); + AC_VERB_SET_BEEP_CONTROL, tone); + if (!tone && beep->playing) { + beep->playing = 0; + snd_hda_power_down(codec); + } } /* (non-standard) Linear beep tone calculation for IDT/STAC codecs @@ -115,14 +125,23 @@ static int snd_hda_beep_event(struct input_dev *dev, unsigned int type, return 0; } +static void turn_off_beep(struct hda_beep *beep) +{ + cancel_work_sync(&beep->beep_work); + if (beep->playing) { + /* turn off beep */ + snd_hda_codec_write(beep->codec, beep->nid, 0, + AC_VERB_SET_BEEP_CONTROL, 0); + beep->playing = 0; + snd_hda_power_down(beep->codec); + } +} + static void snd_hda_do_detach(struct hda_beep *beep) { input_unregister_device(beep->dev); beep->dev = NULL; - cancel_work_sync(&beep->beep_work); - /* turn off beep for sure */ - snd_hda_codec_write(beep->codec, beep->nid, 0, - AC_VERB_SET_BEEP_CONTROL, 0); + turn_off_beep(beep); } static int snd_hda_do_attach(struct hda_beep *beep) @@ -170,12 +189,8 @@ int snd_hda_enable_beep_device(struct hda_codec *codec, int enable) enable = !!enable; if (beep->enabled != enable) { beep->enabled = enable; - if (!enable) { - cancel_work_sync(&beep->beep_work); - /* turn off beep */ - snd_hda_codec_write(beep->codec, beep->nid, 0, - AC_VERB_SET_BEEP_CONTROL, 0); - } + if (!enable) + turn_off_beep(beep); return 1; } return 0; @@ -198,7 +213,7 @@ int snd_hda_attach_beep_device(struct hda_codec *codec, int nid) snprintf(beep->phys, sizeof(beep->phys), "card%d/codec#%d/beep0", codec->bus->card->number, codec->addr); /* enable linear scale */ - snd_hda_codec_write(codec, nid, 0, + snd_hda_codec_write_cache(codec, nid, 0, AC_VERB_SET_DIGI_CONVERT_2, 0x01); beep->nid = nid; |