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authorDavid Henningsson <david.henningsson@canonical.com>2012-10-09 15:04:21 +0200
committerTakashi Iwai <tiwai@suse.de>2012-10-15 09:58:28 +0200
commit26a6cb6cca225f652acf4bfac3028019be73dadd (patch)
tree883cf924a81b442d5dd9b9a375d6aa12968c1fa6 /sound/pci/hda/hda_intel.c
parent239fb862e8e26287212bdefabb021ef8c5ef1b53 (diff)
downloadlinux-26a6cb6cca225f652acf4bfac3028019be73dadd.tar.gz
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: David Henningsson <david.henningsson@canonical.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_intel.c')
-rw-r--r--sound/pci/hda/hda_intel.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index ecf277506ad..d327ffa5b75 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -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++;
}