[ALSA] Add a new quirk for mute-LED and HP-only.

Modules: AC97 Codec,ATIIXP driver,Intel8x0 driver

This patch adds a new quirk for ac97 hardware that combines the existing
AC97_TUNE_MUTE_LED and AC97_TUNE_HP_ONLY quirks.  This is needed for several
current HP laptops.  Additionally, it adds the HP nx6125 to the
AC97_TUNE_MUTE_LED list.

Fixed for the latest version of ALSA by Takashi Iwai <tiwai@suse.de>.

Signed-off-by: Matthew Garrett <mjg59@srcf.ucam.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 36 insertions, 0 deletions

diff --git a/sound/pci/ac97/ac97_codec.c b/sound/pci/ac97/ac97_codec.c
index 33d7a1fc2f9..3020ca2b602 100644
--- a/sound/pci/ac97/ac97_codec.c
+++ b/sound/pci/ac97/ac97_codec.c
@@ -2457,6 +2457,41 @@ static int tune_mute_led(struct snd_ac97 *ac97)
         return 0;
 }
 
+static int hp_master_mute_sw_put(struct snd_kcontrol *kcontrol,
+                                 struct snd_ctl_elem_value *ucontrol)
+{
+        int err = bind_hp_volsw_put(kcontrol, ucontrol);
+        if (err > 0) {
+                struct snd_ac97 *ac97 = snd_kcontrol_chip(kcontrol);
+                int shift = (kcontrol->private_value >> 8) & 0x0f;
+                int rshift = (kcontrol->private_value >> 12) & 0x0f;
+                unsigned short mask;
+                if (shift != rshift)
+                        mask = 0x8080;
+                else
+                        mask = 0x8000;
+                snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000,
+                                     (ac97->regs[AC97_MASTER] & mask) == mask ?
+                                     0x8000 : 0);
+        }
+        return err;
+}
+
+static int tune_hp_mute_led(struct snd_ac97 *ac97)
+{
+        struct snd_kcontrol *msw = ctl_find(ac97, "Master Playback Switch", NULL);
+        struct snd_kcontrol *mvol = ctl_find(ac97, "Master Playback Volume", NULL);
+        if (! msw || ! mvol)
+                return -ENOENT;
+        msw->put = hp_master_mute_sw_put;
+        mvol->put = bind_hp_volsw_put;
+        snd_ac97_remove_ctl(ac97, "External Amplifier", NULL);
+        snd_ac97_remove_ctl(ac97, "Headphone Playback", "Switch");
+        snd_ac97_remove_ctl(ac97, "Headphone Playback", "Volume");
+        snd_ac97_update_bits(ac97, AC97_POWERDOWN, 0x8000, 0x8000); /* mute LED on */
+        return 0;
+}
+
 struct quirk_table {
         const char *name;
         int (*func)(struct snd_ac97 *);
@@ -2471,6 +2506,7 @@ static struct quirk_table applicable_quirks[] = {
         { "alc_jack", tune_alc_jack },
         { "inv_eapd", tune_inv_eapd },
         { "mute_led", tune_mute_led },
+        { "hp_mute_led", tune_hp_mute_led },
 };
 
 /* apply the quirk with the given type */