Commit 26a6cb6c authored by David Henningsson's avatar David Henningsson Committed by Takashi Iwai
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ALSA: hda - Implement a poll loop for jacks as a module parameter 



Now that we have a generic unsol mechanism, we can implement a generic
poll loop, which can be used for debugging, or if a codec's unsol
mechanism is broken.

Signed-off-by: default avatarDavid Henningsson <david.henningsson@canonical.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent 239fb862

sound/pci/hda/hda_codec.c

+28 −4
Original line number Diff line number Diff line
@@ -1135,6 +1135,19 @@ static void restore_shutup_pins(struct hda_codec *codec) 
}

#endif



static void hda_jackpoll_work(struct work_struct *work)

{

	struct hda_codec *codec =

		container_of(work, struct hda_codec, jackpoll_work.work);

	if (!codec->jackpoll_interval)

		return;



	snd_hda_jack_set_dirty_all(codec);

	snd_hda_jack_poll_all(codec);

	queue_delayed_work(codec->bus->workq, &codec->jackpoll_work,

			   codec->jackpoll_interval);

}



static void init_hda_cache(struct hda_cache_rec *cache,

			   unsigned int record_size);

static void free_hda_cache(struct hda_cache_rec *cache);
@@ -1190,6 +1203,7 @@ static void snd_hda_codec_free(struct hda_codec *codec) 
{

	if (!codec)

		return;

	cancel_delayed_work_sync(&codec->jackpoll_work);

	snd_hda_jack_tbl_clear(codec);

	restore_init_pincfgs(codec);

#ifdef CONFIG_PM
@@ -1273,6 +1287,7 @@ int /*__devinit*/ snd_hda_codec_new(struct hda_bus *bus, 
	snd_array_init(&codec->cvt_setups, sizeof(struct hda_cvt_setup), 8);

	snd_array_init(&codec->conn_lists, sizeof(hda_nid_t), 64);

	snd_array_init(&codec->spdif_out, sizeof(struct hda_spdif_out), 16);

	INIT_DELAYED_WORK(&codec->jackpoll_work, hda_jackpoll_work);



#ifdef CONFIG_PM

	spin_lock_init(&codec->power_lock);
@@ -2349,7 +2364,7 @@ int snd_hda_codec_reset(struct hda_codec *codec) 
		return -EBUSY;



	/* OK, let it free */



	cancel_delayed_work_sync(&codec->jackpoll_work);

#ifdef CONFIG_PM

	cancel_delayed_work_sync(&codec->power_work);

	codec->power_on = 0;
@@ -3646,7 +3661,6 @@ 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 {
@@ -3655,7 +3669,13 @@ static void hda_call_codec_resume(struct hda_codec *codec) 
		snd_hda_codec_resume_amp(codec);

		snd_hda_codec_resume_cache(codec);

	}



	if (codec->jackpoll_interval)

		hda_jackpoll_work(&codec->jackpoll_work.work);

	else {

		snd_hda_jack_set_dirty_all(codec);

		snd_hda_jack_report_sync(codec);

	}

	snd_hda_power_down(codec); /* flag down before returning */

}

#endif /* CONFIG_PM */
@@ -3737,6 +3757,9 @@ int snd_hda_codec_build_controls(struct hda_codec *codec) 
	if (err < 0)

		return err;



	if (codec->jackpoll_interval)

		hda_jackpoll_work(&codec->jackpoll_work.work);

	else

		snd_hda_jack_report_sync(codec); /* call at the last init point */

	return 0;

}
@@ -5128,6 +5151,7 @@ int snd_hda_suspend(struct hda_bus *bus) 
	struct hda_codec *codec;



	list_for_each_entry(codec, &bus->codec_list, list) {

		cancel_delayed_work_sync(&codec->jackpoll_work);

		if (hda_codec_is_power_on(codec))

			hda_call_codec_suspend(codec, false);

	}

sound/pci/hda/hda_codec.h

+2 −0
Original line number Diff line number Diff line
@@ -884,6 +884,8 @@ struct hda_codec { 


	/* jack detection */

	struct snd_array jacktbl;

	unsigned long jackpoll_interval; /* In jiffies. Zero means no poll, rely on unsol events */

	struct delayed_work jackpoll_work;



#ifdef CONFIG_SND_HDA_INPUT_JACK

	/* jack detection */

sound/pci/hda/hda_intel.c

+20 −0
Original line number Diff line number Diff line
@@ -68,6 +68,7 @@ static int position_fix[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1}; 
static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};

static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};

static int probe_only[SNDRV_CARDS];

static int jackpoll_ms[SNDRV_CARDS];

static bool single_cmd;

static int enable_msi = -1;

#ifdef CONFIG_SND_HDA_PATCH_LOADER
@@ -95,6 +96,8 @@ module_param_array(probe_mask, int, NULL, 0444); 
MODULE_PARM_DESC(probe_mask, "Bitmask to probe codecs (default = -1).");

module_param_array(probe_only, int, NULL, 0444);

MODULE_PARM_DESC(probe_only, "Only probing and no codec initialization.");

module_param_array(jackpoll_ms, int, NULL, 0444);

MODULE_PARM_DESC(jackpoll_ms, "Ms between polling for jack events (default = 0, using unsol events only)");

module_param(single_cmd, bool, 0444);

MODULE_PARM_DESC(single_cmd, "Use single command to communicate with codecs "

		 "(for debugging only).");
@@ -1582,6 +1585,22 @@ static void azx_bus_reset(struct hda_bus *bus) 
	bus->in_reset = 0;

}



static int get_jackpoll_interval(struct azx *chip)

{

	int i = jackpoll_ms[chip->dev_index];

	unsigned int j;

	if (i == 0)

		return 0;

	if (i < 50 || i > 60000)

		j = 0;

	else

		j = msecs_to_jiffies(i);

	if (j == 0)

		snd_printk(KERN_WARNING SFX

			   "jackpoll_ms value out of range: %d\n", i);

	return j;

}



/*

 * Codec initialization

 */
@@ -1666,6 +1685,7 @@ static int DELAYED_INIT_MARK azx_codec_create(struct azx *chip, const char *mode 
			err = snd_hda_codec_new(chip->bus, c, &codec);

			if (err < 0)

				continue;

			codec->jackpoll_interval = get_jackpoll_interval(chip);

			codec->beep_mode = chip->beep_mode;

			codecs++;

		}

sound/pci/hda/hda_jack.c

+22 −0
Original line number Diff line number Diff line
@@ -439,3 +439,25 @@ void snd_hda_jack_unsol_event(struct hda_codec *codec, unsigned int res) 
}

EXPORT_SYMBOL_HDA(snd_hda_jack_unsol_event);



void snd_hda_jack_poll_all(struct hda_codec *codec)

{

	struct hda_jack_tbl *jack = codec->jacktbl.list;

	int i, changes = 0;



	for (i = 0; i < codec->jacktbl.used; i++, jack++) {

		unsigned int old_sense;

		if (!jack->nid || !jack->jack_dirty || jack->phantom_jack)

			continue;

		old_sense = get_jack_plug_state(jack->pin_sense);

		jack_detect_update(codec, jack);

		if (old_sense == get_jack_plug_state(jack->pin_sense))

			continue;

		changes = 1;

		if (jack->callback)

			jack->callback(codec, jack);

	}

	if (changes)

		snd_hda_jack_report_sync(codec);

}

EXPORT_SYMBOL_HDA(snd_hda_jack_poll_all);

sound/pci/hda/hda_jack.h

+2 −0
Original line number Diff line number Diff line
@@ -84,4 +84,6 @@ void snd_hda_jack_report_sync(struct hda_codec *codec); 


void snd_hda_jack_unsol_event(struct hda_codec *codec, unsigned int res);



void snd_hda_jack_poll_all(struct hda_codec *codec);



#endif /* __SOUND_HDA_JACK_H */

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