ALSA: hda - Make common input-jack helper functions
Since multiple codec drivers already use the input-jack stuff, let's
make common helper functions to reduce the duplicated codes.
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index ae5c5d5e..2c79e96 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -29,6 +29,7 @@
#include <sound/asoundef.h>
#include <sound/tlv.h>
#include <sound/initval.h>
+#include <sound/jack.h>
#include "hda_local.h"
#include "hda_beep.h"
#include <sound/hda_hwdep.h>
@@ -4959,5 +4960,109 @@
}
EXPORT_SYMBOL_HDA(snd_print_pcm_bits);
+#ifdef CONFIG_SND_HDA_INPUT_JACK
+/*
+ * Input-jack notification support
+ */
+struct hda_jack_item {
+ hda_nid_t nid;
+ int type;
+ struct snd_jack *jack;
+};
+
+static const char *get_jack_default_name(struct hda_codec *codec, hda_nid_t nid,
+ int type)
+{
+ switch (type) {
+ case SND_JACK_HEADPHONE:
+ return "Headphone";
+ case SND_JACK_MICROPHONE:
+ return "Mic";
+ case SND_JACK_LINEOUT:
+ return "Line-out";
+ case SND_JACK_HEADSET:
+ return "Headset";
+ default:
+ return "Misc";
+ }
+}
+
+static void hda_free_jack_priv(struct snd_jack *jack)
+{
+ struct hda_jack_item *jacks = jack->private_data;
+ jacks->nid = 0;
+ jacks->jack = NULL;
+}
+
+int snd_hda_input_jack_add(struct hda_codec *codec, hda_nid_t nid, int type,
+ const char *name)
+{
+ struct hda_jack_item *jack;
+ int err;
+
+ snd_array_init(&codec->jacks, sizeof(*jack), 32);
+ jack = snd_array_new(&codec->jacks);
+ if (!jack)
+ return -ENOMEM;
+
+ jack->nid = nid;
+ jack->type = type;
+ if (!name)
+ name = get_jack_default_name(codec, nid, type);
+ err = snd_jack_new(codec->bus->card, name, type, &jack->jack);
+ if (err < 0) {
+ jack->nid = 0;
+ return err;
+ }
+ jack->jack->private_data = jack;
+ jack->jack->private_free = hda_free_jack_priv;
+ return 0;
+}
+EXPORT_SYMBOL_HDA(snd_hda_input_jack_add);
+
+void snd_hda_input_jack_report(struct hda_codec *codec, hda_nid_t nid)
+{
+ struct hda_jack_item *jacks = codec->jacks.list;
+ int i;
+
+ if (!jacks)
+ return;
+
+ for (i = 0; i < codec->jacks.used; i++, jacks++) {
+ unsigned int pin_ctl;
+ unsigned int present;
+ int type;
+
+ if (jacks->nid != nid)
+ continue;
+ present = snd_hda_jack_detect(codec, nid);
+ type = jacks->type;
+ if (type == (SND_JACK_HEADPHONE | SND_JACK_LINEOUT)) {
+ pin_ctl = snd_hda_codec_read(codec, nid, 0,
+ AC_VERB_GET_PIN_WIDGET_CONTROL, 0);
+ type = (pin_ctl & AC_PINCTL_HP_EN) ?
+ SND_JACK_HEADPHONE : SND_JACK_LINEOUT;
+ }
+ snd_jack_report(jacks->jack, present ? type : 0);
+ }
+}
+EXPORT_SYMBOL_HDA(snd_hda_input_jack_report);
+
+/* free jack instances manually when clearing/reconfiguring */
+void snd_hda_input_jack_free(struct hda_codec *codec)
+{
+ if (!codec->bus->shutdown && codec->jacks.list) {
+ struct hda_jack_item *jacks = codec->jacks.list;
+ int i;
+ for (i = 0; i < codec->jacks.used; i++, jacks++) {
+ if (jacks->jack)
+ snd_device_free(codec->bus->card, jacks->jack);
+ }
+ }
+ snd_array_free(&codec->jacks);
+}
+EXPORT_SYMBOL_HDA(snd_hda_input_jack_free);
+#endif /* CONFIG_SND_HDA_INPUT_JACK */
+
MODULE_DESCRIPTION("HDA codec core");
MODULE_LICENSE("GPL");