audio-lnx: Initial change for techpack of audio drivers.
Add snapshot for audio drivers for SDM targets. The code is
migrated from msm-4.9 kernel at the below cutoff -
(74ff856e8d6: "net: ipc_router: Add dynamic enable/disable
wakeup source feature")
This changes are done for new techpack addition
for audio kernel. Migrate all audio kernel drivers
to this techpack.
Change-Id: I33d580af3ba86a5cb777583efc5d4cdaf2882d93
Signed-off-by: Asish Bhattacharya <asishb@codeaurora.org>
diff --git a/include/linux/qdsp6v2/audio_ssr.h b/include/linux/qdsp6v2/audio_ssr.h
new file mode 100644
index 0000000..a807021
--- /dev/null
+++ b/include/linux/qdsp6v2/audio_ssr.h
@@ -0,0 +1,78 @@
+/* Copyright (c) 2016, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __AUDIO_SSR_H_
+#define __AUDIO_SSR_H_
+
+enum {
+ AUDIO_SSR_DOMAIN_ADSP,
+ AUDIO_SSR_DOMAIN_MODEM,
+ AUDIO_SSR_DOMAIN_MAX
+};
+
+#ifdef CONFIG_MSM_QDSP6_SSR
+
+/*
+ * Use audio_ssr_register to register with the SSR subsystem
+ *
+ * domain_id - Service to use, example: AUDIO_SSR_DOMAIN_ADSP
+ * *nb - Pointer to a notifier block. Provide a callback function
+ * to be notified of an event for that service. The ioctls
+ * used by the callback are defined in subsystem_notif.h.
+ *
+ * Returns: Success: Client handle
+ * Failure: Pointer error code
+ */
+void *audio_ssr_register(int domain_id, struct notifier_block *nb);
+
+/*
+ * Use audio_ssr_deregister to register with the SSR subsystem
+ *
+ * handle - Handle received from audio_ssr_register
+ * *nb - Pointer to a notifier block. Callback function
+ * Used from audio_ssr_register.
+ *
+ * Returns: Success: 0
+ * Failure: Error code
+ */
+int audio_ssr_deregister(void *handle, struct notifier_block *nb);
+
+
+/*
+ * Use audio_ssr_send_nmi to force a RAM dump on ADSP
+ * down event.
+ *
+ * *ssr_cb_data - *data received from notifier callback
+ */
+void audio_ssr_send_nmi(void *ssr_cb_data);
+
+#else
+
+static inline void *audio_ssr_register(int domain_id,
+ struct notifier_block *nb)
+{
+ return NULL;
+}
+
+static inline int audio_ssr_deregister(void *handle, struct notifier_block *nb)
+{
+ return 0;
+}
+
+static inline void audio_ssr_send_nmi(void *ssr_cb_data)
+{
+}
+
+#endif /* CONFIG_MSM_QDSP6_SSR */
+
+#endif