ALSA: hda - Add input jack layer support to Realtek codec

Signed-off-by: Kailang Yang <kailang@realtek.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 98 insertions, 0 deletions

diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 9c2c19c8b059..3b040870365d 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -28,6 +28,7 @@
 #include <linux/slab.h>
 #include <linux/pci.h>
 #include <sound/core.h>
+#include <sound/jack.h>
 #include "hda_codec.h"
 #include "hda_local.h"
 #include "hda_beep.h"
@@ -282,6 +283,12 @@ struct alc_mic_route {
         unsigned char amix_idx;
 };
 
+struct alc_jack {
+        hda_nid_t nid;
+        int type;
+        struct snd_jack *jack;
+};
+
 #define MUX_IDX_UNDEF   ((unsigned char)-1)
 
 struct alc_customize_define {
@@ -357,6 +364,9 @@ struct alc_spec {
         /* PCM information */
         struct hda_pcm pcm_rec[3];      /* used in alc_build_pcms() */
 
+        /* jack detection */
+        struct snd_array jacks;
+
         /* dynamic controls, init_verbs and input_mux */
         struct auto_pin_cfg autocfg;
         struct alc_customize_define cdefine;
@@ -990,6 +1000,91 @@ static void alc_fix_pll_init(struct hda_codec *codec, hda_nid_t nid,
         alc_fix_pll(codec);
 }
 
+#ifdef CONFIG_SND_HDA_INPUT_JACK
+static void alc_free_jack_priv(struct snd_jack *jack)
+{
+        struct alc_jack *jacks = jack->private_data;
+        jacks->nid = 0;
+        jacks->jack = NULL;
+}
+
+static int alc_add_jack(struct hda_codec *codec,
+                hda_nid_t nid, int type)
+{
+        struct alc_spec *spec;
+        struct alc_jack *jack;
+        const char *name;
+        int err;
+
+        spec = codec->spec;
+        snd_array_init(&spec->jacks, sizeof(*jack), 32);
+        jack = snd_array_new(&spec->jacks);
+        if (!jack)
+                return -ENOMEM;
+
+        jack->nid = nid;
+        jack->type = type;
+        name = (type == SND_JACK_HEADPHONE) ? "Headphone" : "Mic" ;
+
+        err = snd_jack_new(codec->bus->card, name, type, &jack->jack);
+        if (err < 0)
+                return err;
+        jack->jack->private_data = jack;
+        jack->jack->private_free = alc_free_jack_priv;
+        return 0;
+}
+
+static void alc_report_jack(struct hda_codec *codec, hda_nid_t nid)
+{
+        struct alc_spec *spec = codec->spec;
+        struct alc_jack *jacks = spec->jacks.list;
+
+        if (jacks) {
+                int i;
+                for (i = 0; i < spec->jacks.used; i++) {
+                        if (jacks->nid == nid) {
+                                unsigned int present;
+                                present = snd_hda_jack_detect(codec, nid);
+
+                                present = (present) ? jacks->type : 0;
+
+                                snd_jack_report(jacks->jack, present);
+                        }
+                        jacks++;
+                }
+        }
+}
+
+static int alc_init_jacks(struct hda_codec *codec)
+{
+        struct alc_spec *spec = codec->spec;
+        int err;
+        unsigned int hp_nid = spec->autocfg.hp_pins[0];
+        unsigned int mic_nid = spec->ext_mic.pin;
+
+        err = alc_add_jack(codec, hp_nid, SND_JACK_HEADPHONE);
+        if (err < 0)
+                return err;
+        alc_report_jack(codec, hp_nid);
+
+        err = alc_add_jack(codec, mic_nid, SND_JACK_MICROPHONE);
+        if (err < 0)
+                return err;
+        alc_report_jack(codec, mic_nid);
+
+        return 0;
+}
+#else
+static inline void alc_report_jack(struct hda_codec *codec, hda_nid_t nid)
+{
+}
+
+static inline int alc_init_jacks(struct hda_codec *codec)
+{
+        return 0;
+}
+#endif
+
 static void alc_automute_speaker(struct hda_codec *codec, int pinctl)
 {
         struct alc_spec *spec = codec->spec;
@@ -1006,6 +1101,7 @@ static void alc_automute_speaker(struct hda_codec *codec, int pinctl)
                         spec->jack_present = 1;
                         break;
                 }
+                alc_report_jack(codec, spec->autocfg.hp_pins[i]);
         }
 
         mute = spec->jack_present ? HDA_AMP_MUTE : 0;
@@ -1111,6 +1207,7 @@ static void alc_mic_automute(struct hda_codec *codec)
                                           AC_VERB_SET_CONNECT_SEL,
                                           alive->mux_idx);
         }
+        alc_report_jack(codec, spec->ext_mic.pin);
 
         /* FIXME: analog mixer */
 }
@@ -14496,6 +14593,7 @@ static void alc269_auto_init(struct hda_codec *codec)
         alc269_auto_init_hp_out(codec);
         alc269_auto_init_analog_input(codec);
         alc_auto_init_digital(codec);
+        alc_init_jacks(codec);
         if (spec->unsol_event)
                 alc_inithook(codec);
 }