samsung-sm8650/android_kernel_samsung_sm8650-modules
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

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

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

Change-Id: I2d147738c3ba2b498b0ce9824201adce71689e2d
Signed-off-by: Banajit Goswami <bgoswami@codeaurora.org>
This commit is contained in:
Banajit Goswami
2018-07-20 19:24:54 -07:00
parent 06183689db
commit 40bdd6b55a
1 changed files with 21 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

21
ipc/apr.c
View File

@@ -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;