ALSA: hda - Cache the jack-detection value

Introduce a table containing the pins and their jack-detection states
for avoiding the unnecessary verbs to check the pin status at each time.

When the unsol event is enabled via snd_hda_jack_detect_enable(), it
automatically adds the given NID to the table.  Then the driver supposes
that the codec driver will set the dirty flag appropariately when an
unsolicited event is invoked for that pin.

The behavior for reading other pins that aren't registered in the table
doesn't change.  Only the pins assigned to the table are cached, so far.

In near futre, this table can be extended to use the central place for
the unsolicited events of all pins, etc, and eventually include the
jack-detect kcontrols that replace the current input-jack stuff.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 3 insertions, 37 deletions

diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index c6ff9b9..8217ff7 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -33,6 +33,7 @@
 #include <sound/jack.h>
 #include "hda_local.h"
 #include "hda_beep.h"
+#include "hda_jack.h"
 #include <sound/hda_hwdep.h>
 
 #define CREATE_TRACE_POINTS
@@ -1723,43 +1724,6 @@ int snd_hda_override_pin_caps(struct hda_codec *codec, hda_nid_t nid,
 }
 EXPORT_SYMBOL_HDA(snd_hda_override_pin_caps);
 
-/**
- * snd_hda_pin_sense - execute pin sense measurement
- * @codec: the CODEC to sense
- * @nid: the pin NID to sense
- *
- * Execute necessary pin sense measurement and return its Presence Detect,
- * Impedance, ELD Valid etc. status bits.
- */
-u32 snd_hda_pin_sense(struct hda_codec *codec, hda_nid_t nid)
-{
-	u32 pincap;
-
-	if (!codec->no_trigger_sense) {
-		pincap = snd_hda_query_pin_caps(codec, nid);
-		if (pincap & AC_PINCAP_TRIG_REQ) /* need trigger? */
-			snd_hda_codec_read(codec, nid, 0,
-					AC_VERB_SET_PIN_SENSE, 0);
-	}
-	return snd_hda_codec_read(codec, nid, 0,
-				  AC_VERB_GET_PIN_SENSE, 0);
-}
-EXPORT_SYMBOL_HDA(snd_hda_pin_sense);
-
-/**
- * snd_hda_jack_detect - query pin Presence Detect status
- * @codec: the CODEC to sense
- * @nid: the pin NID to sense
- *
- * Query and return the pin's Presence Detect status.
- */
-int snd_hda_jack_detect(struct hda_codec *codec, hda_nid_t nid)
-{
-	u32 sense = snd_hda_pin_sense(codec, nid);
-	return !!(sense & AC_PINSENSE_PRESENCE);
-}
-EXPORT_SYMBOL_HDA(snd_hda_jack_detect);
-
 /*
  * read the current volume to info
  * if the cache exists, read the cache value.
@@ -2308,6 +2272,7 @@ int snd_hda_codec_reset(struct hda_codec *codec)
 	}
 	if (codec->patch_ops.free)
 		codec->patch_ops.free(codec);
+	snd_hda_jack_tbl_clear(codec);
 	codec->proc_widget_hook = NULL;
 	codec->spec = NULL;
 	free_hda_cache(&codec->amp_cache);
@@ -3364,6 +3329,7 @@ static void hda_call_codec_resume(struct hda_codec *codec)
 	restore_pincfgs(codec); /* restore all current pin configs */
 	restore_shutup_pins(codec);
 	hda_exec_init_verbs(codec);
+	snd_hda_jack_set_dirty_all(codec);
 	if (codec->patch_ops.resume)
 		codec->patch_ops.resume(codec);
 	else {