From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/sound/pci/hda/dell_wmi_helper.c | 76 ++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 kernel/sound/pci/hda/dell_wmi_helper.c (limited to 'kernel/sound/pci/hda/dell_wmi_helper.c') diff --git a/kernel/sound/pci/hda/dell_wmi_helper.c b/kernel/sound/pci/hda/dell_wmi_helper.c new file mode 100644 index 000000000..9c22f9583 --- /dev/null +++ b/kernel/sound/pci/hda/dell_wmi_helper.c @@ -0,0 +1,76 @@ +/* Helper functions for Dell Mic Mute LED control; + * to be included from codec driver + */ + +#if IS_ENABLED(CONFIG_LEDS_DELL_NETBOOKS) +#include + +static int dell_led_value; +static int (*dell_led_set_func)(int, int); +static void (*dell_old_cap_hook)(struct hda_codec *, + struct snd_kcontrol *, + struct snd_ctl_elem_value *); + +static void update_dell_wmi_micmute_led(struct hda_codec *codec, + struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + if (dell_old_cap_hook) + dell_old_cap_hook(codec, kcontrol, ucontrol); + + if (!ucontrol || !dell_led_set_func) + return; + if (strcmp("Capture Switch", ucontrol->id.name) == 0 && ucontrol->id.index == 0) { + /* TODO: How do I verify if it's a mono or stereo here? */ + int val = (ucontrol->value.integer.value[0] || ucontrol->value.integer.value[1]) ? 0 : 1; + if (val == dell_led_value) + return; + dell_led_value = val; + if (dell_led_set_func) + dell_led_set_func(DELL_LED_MICMUTE, dell_led_value); + } +} + + +static void alc_fixup_dell_wmi(struct hda_codec *codec, + const struct hda_fixup *fix, int action) +{ + struct alc_spec *spec = codec->spec; + bool removefunc = false; + + if (action == HDA_FIXUP_ACT_PROBE) { + if (!dell_led_set_func) + dell_led_set_func = symbol_request(dell_app_wmi_led_set); + if (!dell_led_set_func) { + codec_warn(codec, "Failed to find dell wmi symbol dell_app_wmi_led_set\n"); + return; + } + + removefunc = true; + if (dell_led_set_func(DELL_LED_MICMUTE, false) >= 0) { + dell_led_value = 0; + if (spec->gen.num_adc_nids > 1) + codec_dbg(codec, "Skipping micmute LED control due to several ADCs"); + else { + dell_old_cap_hook = spec->gen.cap_sync_hook; + spec->gen.cap_sync_hook = update_dell_wmi_micmute_led; + removefunc = false; + } + } + + } + + if (dell_led_set_func && (action == HDA_FIXUP_ACT_FREE || removefunc)) { + symbol_put(dell_app_wmi_led_set); + dell_led_set_func = NULL; + dell_old_cap_hook = NULL; + } +} + +#else /* CONFIG_LEDS_DELL_NETBOOKS */ +static void alc_fixup_dell_wmi(struct hda_codec *codec, + const struct hda_fixup *fix, int action) +{ +} + +#endif /* CONFIG_LEDS_DELL_NETBOOKS */ -- cgit 1.2.3-korg