44319ab7e0
To ensure all users of dell-smbios are in drivers/platform/x86, move the dell_micmute_led_set() method from drivers/leds/dell-led.c to drivers/platform/x86/dell-laptop.c. Signed-off-by: Michał Kępień <kernel@kempniu.pl> Tested-by: Alex Hung <alex.hung@canonical.com> Reviewed-by: Pali Rohár <pali.rohar@gmail.com> Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com> Acked-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>
77 lines
2.2 KiB
C
77 lines
2.2 KiB
C
/* Helper functions for Dell Mic Mute LED control;
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* to be included from codec driver
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*/
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#if IS_ENABLED(CONFIG_DELL_LAPTOP)
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#include <linux/dell-led.h>
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static int dell_led_value;
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static int (*dell_micmute_led_set_func)(int);
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static void (*dell_old_cap_hook)(struct hda_codec *,
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struct snd_kcontrol *,
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struct snd_ctl_elem_value *);
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static void update_dell_wmi_micmute_led(struct hda_codec *codec,
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struct snd_kcontrol *kcontrol,
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struct snd_ctl_elem_value *ucontrol)
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{
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if (dell_old_cap_hook)
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dell_old_cap_hook(codec, kcontrol, ucontrol);
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if (!ucontrol || !dell_micmute_led_set_func)
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return;
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if (strcmp("Capture Switch", ucontrol->id.name) == 0 && ucontrol->id.index == 0) {
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/* TODO: How do I verify if it's a mono or stereo here? */
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int val = (ucontrol->value.integer.value[0] || ucontrol->value.integer.value[1]) ? 0 : 1;
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if (val == dell_led_value)
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return;
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dell_led_value = val;
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if (dell_micmute_led_set_func)
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dell_micmute_led_set_func(dell_led_value);
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}
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}
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static void alc_fixup_dell_wmi(struct hda_codec *codec,
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const struct hda_fixup *fix, int action)
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{
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struct alc_spec *spec = codec->spec;
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bool removefunc = false;
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if (action == HDA_FIXUP_ACT_PROBE) {
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if (!dell_micmute_led_set_func)
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dell_micmute_led_set_func = symbol_request(dell_micmute_led_set);
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if (!dell_micmute_led_set_func) {
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codec_warn(codec, "Failed to find dell wmi symbol dell_micmute_led_set\n");
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return;
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}
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removefunc = true;
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if (dell_micmute_led_set_func(false) >= 0) {
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dell_led_value = 0;
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if (spec->gen.num_adc_nids > 1 && !spec->gen.dyn_adc_switch)
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codec_dbg(codec, "Skipping micmute LED control due to several ADCs");
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else {
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dell_old_cap_hook = spec->gen.cap_sync_hook;
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spec->gen.cap_sync_hook = update_dell_wmi_micmute_led;
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removefunc = false;
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}
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}
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}
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if (dell_micmute_led_set_func && (action == HDA_FIXUP_ACT_FREE || removefunc)) {
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symbol_put(dell_micmute_led_set);
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dell_micmute_led_set_func = NULL;
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dell_old_cap_hook = NULL;
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}
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}
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#else /* CONFIG_DELL_LAPTOP */
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static void alc_fixup_dell_wmi(struct hda_codec *codec,
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const struct hda_fixup *fix, int action)
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{
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}
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#endif /* CONFIG_DELL_LAPTOP */
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