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Commit 34542213 authored by Adrian Knoth's avatar Adrian Knoth Committed by Takashi Iwai
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ALSA: hdspm - Also check for TCO sync states 



This patch prepares snd_hdspm_get_sync_check() to also check the TCO
sync state. The added feature will be exposed to the user in a later
commit.

Signed-off-by: default avatarAdrian Knoth <adi@drcomp.erfurt.thur.de>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent e5b7b1fe

sound/pci/rme9652/hdspm.c

+42 −0
Original line number Diff line number Diff line
@@ -3447,6 +3447,16 @@ static int snd_hdspm_put_playback_mixer(struct snd_kcontrol *kcontrol, 
	.get = snd_hdspm_get_sync_check \

}



#define HDSPM_TCO_LOCK_CHECK(xname, xindex) \

{	.iface = SNDRV_CTL_ELEM_IFACE_MIXER, \

	.name = xname, \

	.private_value = xindex, \

	.access = SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE, \

	.info = snd_hdspm_tco_info_lock_check, \

	.get = snd_hdspm_get_sync_check \

}







static int snd_hdspm_info_sync_check(struct snd_kcontrol *kcontrol,

				     struct snd_ctl_elem_info *uinfo)
@@ -3456,6 +3466,14 @@ static int snd_hdspm_info_sync_check(struct snd_kcontrol *kcontrol, 
	return 0;

}



static int snd_hdspm_tco_info_lock_check(struct snd_kcontrol *kcontrol,

				     struct snd_ctl_elem_info *uinfo)

{

	static char *texts[] = { "No Lock", "Lock" };

	ENUMERATED_CTL_INFO(uinfo, texts);

	return 0;

}



static int hdspm_wc_sync_check(struct hdspm *hdspm)

{

	int status, status2;
@@ -3585,6 +3603,14 @@ static int hdspm_aes_sync_check(struct hdspm *hdspm, int idx) 
	return 0;

}



static int hdspm_tco_input_check(struct hdspm *hdspm, u32 mask)

{

	u32 status;

	status = hdspm_read(hdspm, HDSPM_RD_TCO + 4);



	return (status & mask) ? 1 : 0;

}





static int hdspm_tco_sync_check(struct hdspm *hdspm)

{
@@ -3692,6 +3718,22 @@ static int snd_hdspm_get_sync_check(struct snd_kcontrol *kcontrol, 


	}



	if (hdspm->tco) {

		switch (kcontrol->private_value) {

		case 11:

			/* Check TCO for lock state of its current input */

			val = hdspm_tco_input_check(hdspm, HDSPM_TCO1_TCO_lock);

			break;

		case 12:

			/* Check TCO for valid time code on LTC input. */

			val = hdspm_tco_input_check(hdspm,

				HDSPM_TCO1_LTC_Input_valid);

			break;

		default:

			break;

		}

	}



	if (-1 == val)

		val = 3;