From: James Gardiner renidragsemaj@yahoo.com

This patch to patch_sigmatel.c is for the HP dv4-1222nr laptop. It activates the included microphone(s) and the mute status change light for this computer. I don't know if this will work for any other dv4 laptop. The commit isn't perfect, for it doesn't seem to work too well with pulseaudio - the mic boost doesn't work with that audioserver. Otherwise, it works well with esound, even across reboots and suspend/hibernate/resume. The built-in microphone sits on node 0x18 and feeds through node 0x1c. The gpio for the mute light is GPIO #0. I borrowed the code from the HP HDX. Occasionally if you press the mute button too fast in succession it lowers the actual volume to 0 and you'll have to adjust it again...But if you are doing that you probably are getting a kick out of making me feel bad about the behavior. :) No autodetect of the laptop seems to work for me, but "model=hp-dv4-1222nr" as an option to modprobe will make the changes.

Signed-off-by: James Gardiner renidragsemaj@yahoo.com

diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 61996a2..4286155 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -100,6 +100,7 @@ enum { STAC_HP_M4, STAC_HP_DV5, STAC_HP_HDX, + STAC_HP_DV4_1222NR, STAC_92HD71BXX_MODELS };

@@ -1847,6 +1848,7 @@ static const char *stac92hd71bxx_models[STAC_92HD71BXX_MODELS] = { [STAC_HP_M4] = "hp-m4", [STAC_HP_DV5] = "hp-dv5", [STAC_HP_HDX] = "hp-hdx", + [STAC_HP_DV4_1222NR] = "hp-dv4-1222nr", };

static struct snd_pci_quirk stac92hd71bxx_cfg_tbl[] = { @@ -4534,6 +4536,28 @@ static int stac92xx_hp_hdx_check_power_status(struct hda_codec *codec, } #endif

+static int stac92xx_hp_dv4_1222nr_check_power_status(struct hda_codec *codec, + hda_nid_t nid) +{ + /* Shamelessly stolen from the function stac92xx_hp_hdx_check_power_status */ + /* by James Gardiner */ + struct sigmatel_spec *spec = codec->spec; + + if (nid == 0x10) { + if (snd_hda_codec_amp_read(codec, nid, 0, HDA_OUTPUT, 0) & + HDA_AMP_MUTE) + spec->gpio_data &= ~0x01; /* orange */ + else + spec->gpio_data |= 0x01; /* white */ + + stac_gpio_set(codec, spec->gpio_mask, + spec->gpio_dir, + spec->gpio_data); + } + + return 0; +} + static int stac92xx_suspend(struct hda_codec *codec, pm_message_t state) { struct sigmatel_spec *spec = codec->spec; @@ -5202,6 +5226,19 @@ again: spec->num_smuxes = 0; spec->num_dmuxes = 1; break; + case STAC_HP_DV4_1222NR: /* James Gardiner */ + spec->num_dmics = 1; + spec->num_dmuxes = 2; + stac92xx_auto_set_pinctl(codec, 0x1c, 2); + stac92xx_auto_set_pinctl(codec, 0x18, AC_PINCTL_IN_EN); +#ifdef CONFIG_SND_HDA_POWER_SAVE + spec->gpio_mask |= 0x01; + spec->gpio_dir |= 0x01; + spec->gpio_data |= 0x01; + codec->patch_ops.check_power_status = + stac92xx_hp_dv4_1222nr_check_power_status; +#endif + /* fallthrough */ case STAC_HP_DV5: snd_hda_codec_set_pincfg(codec, 0x0d, 0x90170010); stac92xx_auto_set_pinctl(codec, 0x0d, AC_PINCTL_OUT_EN);