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Commit 40bdd6b5 authored by Banajit Goswami's avatar Banajit Goswami
Browse files

ipc: apr: add support for SSR handing using SND event FWK 



Add support for SSR/PDR notification handling using SND
event framework.

Change-Id: I2d147738c3ba2b498b0ce9824201adce71689e2d
Signed-off-by: default avatarBanajit Goswami <bgoswami@codeaurora.org>
parent 06183689

ipc/apr.c

+21 −0
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ 
#include <linux/of_platform.h>

#include <soc/qcom/subsystem_restart.h>

#include <soc/qcom/scm.h>

#include <soc/snd_event.h>

#include <dsp/apr_audio-v2.h>

#include <dsp/audio_notifier.h>

#include <ipc/apr.h>
@@ -281,9 +282,19 @@ int apr_set_q6_state(enum apr_subsys_state state) 
}

EXPORT_SYMBOL(apr_set_q6_state);



static void apr_ssr_disable(struct device *dev, void *data)

{

	apr_set_q6_state(APR_SUBSYS_DOWN);

}



static const struct snd_event_ops apr_ssr_ops = {

	.disable = apr_ssr_disable,

};



static void apr_adsp_down(unsigned long opcode)

{

	pr_info("%s: Q6 is Down\n", __func__);

	snd_event_notify(apr_priv->dev, SND_EVENT_DOWN);

	apr_set_q6_state(APR_SUBSYS_DOWN);

	dispatch_event(opcode, APR_DEST_QDSP6);

}
@@ -308,6 +319,7 @@ static void apr_adsp_up(void) 
	if (apr_priv->is_initial_boot)

		schedule_work(&apr_priv->add_chld_dev_work);

	spin_unlock(&apr_priv->apr_lock);

	snd_event_notify(apr_priv->dev, SND_EVENT_UP);

}



int apr_load_adsp_image(void)
@@ -1186,11 +1198,20 @@ static int apr_probe(struct platform_device *pdev) 
	}



	apr_tal_init();



	ret = snd_event_client_register(&pdev->dev, &apr_ssr_ops, NULL);

	if (ret) {

		pr_err("%s: Registration with Audio SSR FW failed ret = %d\n",

			__func__, ret);

		ret = 0;

	}



	return apr_debug_init();

}



static int apr_remove(struct platform_device *pdev)

{

	snd_event_client_deregister(&pdev->dev);

	apr_cleanup();

	apr_tal_exit();

	apr_priv = NULL;