ALSA: hda - add basic jack reporting functions to patch_conexant.c

Added functions to report jack sense.
As CXT5051_PORTB_EVENT has the same value as CONEXANT_MIC_EVENT two input
devices for the microphone will be created if using CXT5051.

Signed-off-by: Ulrich Dangel <uli@spamt.net>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 108 insertions, 3 deletions

diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c
index b20e1cede00b..e0eebfbec351 100644
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -25,6 +25,8 @@
 #include <linux/slab.h>
 #include <linux/pci.h>
 #include <sound/core.h>
+#include <sound/jack.h>
+
 #include "hda_codec.h"
 #include "hda_local.h"
 
@@ -37,8 +39,21 @@
 #define CONEXANT_HP_EVENT       0x37
 #define CONEXANT_MIC_EVENT      0x38
 
+/* Conexant 5051 specific */
+
+#define CXT5051_SPDIF_OUT       0x1C
+#define CXT5051_PORTB_EVENT     0x38
+#define CXT5051_PORTC_EVENT     0x39
 
 
+struct conexant_jack {
+
+        hda_nid_t nid;
+        int type;
+        struct snd_jack *jack;
+
+};
+
 struct conexant_spec {
 
         struct snd_kcontrol_new *mixers[5];
@@ -83,6 +98,9 @@ struct conexant_spec {
 
         unsigned int spdif_route;
 
+        /* jack detection */
+        struct snd_array jacks;
+
         /* dynamic controls, init_verbs and input_mux */
         struct auto_pin_cfg autocfg;
         struct hda_input_mux private_imux;
@@ -329,6 +347,86 @@ static int conexant_mux_enum_put(struct snd_kcontrol *kcontrol,
                                      &spec->cur_mux[adc_idx]);
 }
 
+static int conexant_add_jack(struct hda_codec *codec,
+                hda_nid_t nid, int type)
+{
+        struct conexant_spec *spec;
+        struct conexant_jack *jack;
+        const char *name;
+
+        spec = codec->spec;
+        snd_array_init(&spec->jacks, sizeof(*jack), 32);
+        jack = snd_array_new(&spec->jacks);
+        name = (type == SND_JACK_HEADPHONE) ? "Headphone" : "Mic" ;
+
+        if (!jack)
+                return -ENOMEM;
+
+        jack->nid = nid;
+        jack->type = type;
+
+        return snd_jack_new(codec->bus->card, name, type, &jack->jack);
+}
+
+static void conexant_report_jack(struct hda_codec *codec, hda_nid_t nid)
+{
+        struct conexant_spec *spec = codec->spec;
+        struct conexant_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_codec_read(codec, nid, 0,
+                                                AC_VERB_GET_PIN_SENSE, 0) &
+                                        AC_PINSENSE_PRESENCE;
+
+                                present = (present) ? jacks->type : 0 ;
+
+                                snd_jack_report(jacks->jack,
+                                                present);
+                        }
+                        jacks++;
+                }
+        }
+}
+
+static int conexant_init_jacks(struct hda_codec *codec)
+{
+#ifdef CONFIG_SND_JACK
+        struct conexant_spec *spec = codec->spec;
+        int i;
+
+        for (i = 0; i < spec->num_init_verbs; i++) {
+                const struct hda_verb *hv;
+
+                hv = spec->init_verbs[i];
+                while (hv->nid) {
+                        int err = 0;
+                        switch (hv->param ^ AC_USRSP_EN) {
+                        case CONEXANT_HP_EVENT:
+                                err = conexant_add_jack(codec, hv->nid,
+                                                SND_JACK_HEADPHONE);
+                                conexant_report_jack(codec, hv->nid);
+                                break;
+                        case CXT5051_PORTC_EVENT:
+                        case CONEXANT_MIC_EVENT:
+                                err = conexant_add_jack(codec, hv->nid,
+                                                SND_JACK_MICROPHONE);
+                                conexant_report_jack(codec, hv->nid);
+                                break;
+                        }
+                        if (err < 0)
+                                return err;
+                        ++hv;
+                }
+        }
+#endif
+        return 0;
+
+}
+
 static int conexant_init(struct hda_codec *codec)
 {
         struct conexant_spec *spec = codec->spec;
@@ -341,6 +439,16 @@ static int conexant_init(struct hda_codec *codec)
 
 static void conexant_free(struct hda_codec *codec)
 {
+#ifdef CONFIG_SND_JACK
+        struct conexant_spec *spec = codec->spec;
+        if (spec->jacks.list) {
+                struct conexant_jack *jacks = spec->jacks.list;
+                int i;
+                for (i = 0; i < spec->jacks.used; i++)
+                        snd_device_free(codec->bus->card, &jacks[i].jack);
+                snd_array_free(&spec->jacks);
+        }
+#endif
         kfree(codec->spec);
 }
 
@@ -1526,9 +1634,6 @@ static int patch_cxt5047(struct hda_codec *codec)
 /* Conexant 5051 specific */
 static hda_nid_t cxt5051_dac_nids[1] = { 0x10 };
 static hda_nid_t cxt5051_adc_nids[2] = { 0x14, 0x15 };
-#define CXT5051_SPDIF_OUT       0x1C
-#define CXT5051_PORTB_EVENT     0x38
-#define CXT5051_PORTC_EVENT     0x39
 
 static struct hda_channel_mode cxt5051_modes[1] = {
         { 2, NULL },