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ALSA: hda - Implement a poll loop for jacks as a module parameter

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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: David Henningsson <david.henningsson@canonical.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
David Henningsson 2012-10-09 15:04:21 +02:00 committed by Takashi Iwai
parent 239fb862e8
commit 26a6cb6cca
5 changed files with 74 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

32
sound/pci/hda/hda_codec.c
View File

@ -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);
}
snd_hda_jack_report_sync(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 */
@ -3737,7 +3757,10 @@ int snd_hda_codec_build_controls(struct hda_codec *codec)
if (err < 0)
return err;
snd_hda_jack_report_sync(codec); /* call at the last init point */
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);
}

2
sound/pci/hda/hda_codec.h
View File

@ -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 */

20
sound/pci/hda/hda_intel.c
View File

@ -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++;
}

22
sound/pci/hda/hda_jack.c
View File

@ -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);

2
sound/pci/hda/hda_jack.h
View File

@ -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 */