From c7b60a89516beb20a352ec85c73a8fccd5becf26 Mon Sep 17 00:00:00 2001 From: Hui Wang Date: Mon, 28 Dec 2015 11:35:25 +0800 Subject: [PATCH] ALSA: hda - Add keycode map for alc input device Then users can remap the keycode from userspace. If without the remap, the input device will pass KEY_MICMUTE to userspace, but in X11 layer, it uses KEY_F20 rather than KEY_MICMUTE for XF86AudioMicMute. After adding the keycode map, users can remap the keycode to any value users want. Cc: Signed-off-by: Hui Wang Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 19 ++++++++++++++++--- 1 file changed, 16 insertions(+), 3 deletions(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 257b839ea94d..3a89d82f8057 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -67,6 +67,10 @@ enum { ALC_HEADSET_TYPE_OMTP, }; +enum { + ALC_KEY_MICMUTE_INDEX, +}; + struct alc_customize_define { unsigned int sku_cfg; unsigned char port_connectivity; @@ -123,6 +127,7 @@ struct alc_spec { unsigned int pll_coef_idx, pll_coef_bit; unsigned int coef0; struct input_dev *kb_dev; + u8 alc_mute_keycode_map[1]; }; /* @@ -3462,24 +3467,32 @@ static void gpio2_mic_hotkey_event(struct hda_codec *codec, /* GPIO2 just toggles on a keypress/keyrelease cycle. Therefore send both key on and key off event for every interrupt. */ - input_report_key(spec->kb_dev, KEY_MICMUTE, 1); + input_report_key(spec->kb_dev, spec->alc_mute_keycode_map[ALC_KEY_MICMUTE_INDEX], 1); input_sync(spec->kb_dev); - input_report_key(spec->kb_dev, KEY_MICMUTE, 0); + input_report_key(spec->kb_dev, spec->alc_mute_keycode_map[ALC_KEY_MICMUTE_INDEX], 0); input_sync(spec->kb_dev); } static int alc_register_micmute_input_device(struct hda_codec *codec) { struct alc_spec *spec = codec->spec; + int i; spec->kb_dev = input_allocate_device(); if (!spec->kb_dev) { codec_err(codec, "Out of memory (input_allocate_device)\n"); return -ENOMEM; } + + spec->alc_mute_keycode_map[ALC_KEY_MICMUTE_INDEX] = KEY_MICMUTE; + spec->kb_dev->name = "Microphone Mute Button"; spec->kb_dev->evbit[0] = BIT_MASK(EV_KEY); - spec->kb_dev->keybit[BIT_WORD(KEY_MICMUTE)] = BIT_MASK(KEY_MICMUTE); + spec->kb_dev->keycodesize = sizeof(spec->alc_mute_keycode_map[0]); + spec->kb_dev->keycodemax = ARRAY_SIZE(spec->alc_mute_keycode_map); + spec->kb_dev->keycode = spec->alc_mute_keycode_map; + for (i = 0; i < ARRAY_SIZE(spec->alc_mute_keycode_map); i++) + set_bit(spec->alc_mute_keycode_map[i], spec->kb_dev->keybit); if (input_register_device(spec->kb_dev)) { codec_err(codec, "input_register_device failed\n"); -- 2.20.1