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Commit 77b9c287 authored by Erin Yan's avatar Erin Yan Committed by Gerrit - the friendly Code Review server
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ASoC: msm: handle SSR event 



Change sound card status when got SSR event notification, so that usespace
can be aware of SSR start and complete by detect sound card status.

Change-Id: Ic6b931b8ffca06881016bc1a063d11164a1233bf
Signed-off-by: default avatarErin Yan <xinyey@codeaurora.org>
parent 58a9174f

sound/soc/msm/apq8096-auto.c

+19 −0
Original line number Diff line number Diff line
@@ -170,6 +170,7 @@ static int msm_tdm_num_slots = 8; 


static void *adsp_state_notifier;

static bool dummy_device_registered;

static struct snd_soc_card  *sndcard;



enum {

	QUATERNARY_TDM_RX_0,
@@ -6902,6 +6903,7 @@ static int apq8096_asoc_machine_probe(struct platform_device *pdev) 
	}

	dev_info(&pdev->dev, "Sound card %s registered\n", card->name);

	place_marker("M - DRIVER Audio Ready");

	sndcard = card;

	return 0;



err:
@@ -6912,6 +6914,7 @@ static int apq8096_asoc_machine_remove(struct platform_device *pdev) 
{

	struct snd_soc_card *card = platform_get_drvdata(pdev);



	sndcard = NULL;

	snd_soc_unregister_card(card);



	return 0;
@@ -6959,6 +6962,22 @@ static int apq8096_adsp_state_callback(struct notifier_block *nb, 
		platform_device_register(&dummy_machine_device);

		dummy_device_registered = true;

	}

	if (sndcard) {

		switch (value) {

		case SUBSYS_AFTER_POWERUP:

			pr_debug("%s:SSR complete, set sndcard state as ONLINE\n",

				__func__);

			snd_soc_card_change_online_state(sndcard, 1);

			break;

		case SUBSYS_AFTER_SHUTDOWN:

			pr_debug("%s:SSR start, set sndcard state as OFFLINE\n",

				__func__);

			snd_soc_card_change_online_state(sndcard, 0);

			break;

		default:

			pr_debug("%s: unsupport value\n", __func__);

		}

	}



	return NOTIFY_OK;

}