Merge "synx : Add snapshot for global synx driver support"

include/uapi/media/Kbuild

@@ -2,3 +2,4 @@
 
 header-y += radio-iris.h
 header-y += radio-iris-commands.h
+header-y += synx.h

include/uapi/media/synx.h

@@ -0,0 +1,184 @@
+/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
+/*
+ * Copyright (c) 2019, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef __UAPI_SYNX_H__
+#define __UAPI_SYNX_H__
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+/* Size of opaque payload sent to kernel for safekeeping until signal time */
+#define SYNX_USER_PAYLOAD_SIZE               4
+
+#define SYNX_STATE_INVALID                   0
+#define SYNX_STATE_ACTIVE                    1
+#define SYNX_STATE_SIGNALED_SUCCESS          2
+#define SYNX_STATE_SIGNALED_ERROR            3
+
+#define SYNX_MAX_WAITING_SYNX                16
+
+#define SYNX_CALLBACK_RESULT_SUCCESS         2
+#define SYNX_CALLBACK_RESULT_FAILED          3
+#define SYNX_CALLBACK_RESULT_CANCELED        4
+
+/**
+ * type of external sync object
+ *
+ * SYNX_TYPE_CSL  : Object is a CSL sync object
+ */
+#define SYNX_TYPE_CSL       0
+#define SYNX_MAX_BIND_TYPES 1
+/**
+ * struct synx_info - Sync object creation information
+ *
+ * @name     : Optional string representation of the synx object
+ * @synx_obj : Sync object returned after creation in kernel
+ */
+struct synx_info {
+	char name[64];
+	__s32 synx_obj;
+};
+
+/**
+ * struct synx_userpayload_info - Payload info from user space
+ *
+ * @synx_obj:   Sync object for which payload has to be registered for
+ * @reserved:   Reserved
+ * @payload:    Pointer to user payload
+ */
+struct synx_userpayload_info {
+	__s32 synx_obj;
+	__u32 reserved;
+	__u64 payload[SYNX_USER_PAYLOAD_SIZE];
+};
+
+/**
+ * struct synx_signal - Sync object signaling struct
+ *
+ * @synx_obj   : Sync object to be signaled
+ * @synx_state : State of the synx object to which it should be signaled
+ */
+struct synx_signal {
+	__s32 synx_obj;
+	__u32 synx_state;
+};
+
+/**
+ * struct synx_merge - Merge information for synx objects
+ *
+ * @synx_objs :  Pointer to synx object array to merge
+ * @num_objs  :  Number of objects in the array
+ * @merged    :  Merged synx object
+ */
+struct synx_merge {
+	__u64 synx_objs;
+	__u32 num_objs;
+	__s32 merged;
+};
+
+/**
+ * struct synx_wait - Sync object wait information
+ *
+ * @synx_obj   : Sync object to wait on
+ * @reserved   : Reserved
+ * @timeout_ms : Timeout in milliseconds
+ */
+struct synx_wait {
+	__s32 synx_obj;
+	__u32 reserved;
+	__u64 timeout_ms;
+};
+
+/**
+ * struct synx_external_desc - info of external sync object
+ *
+ * @type     : Synx type
+ * @reserved : Reserved
+ * @id       : Sync object id
+ *
+ */
+struct synx_external_desc {
+	__u32 type;
+	__u32 reserved;
+	__s32 id[2];
+};
+
+/**
+ * struct synx_bind - info for binding two synx objects
+ *
+ * @synx_obj      : Synx object
+ * @Reserved      : Reserved
+ * @ext_sync_desc : External synx to bind to
+ *
+ */
+struct synx_bind {
+	__s32 synx_obj;
+	__u32 reserved;
+	struct synx_external_desc ext_sync_desc;
+};
+
+/**
+ * struct synx_addrefcount - info for refcount increment
+ *
+ * @synx_obj : Synx object
+ * @count    : Count to increment
+ *
+ */
+struct synx_addrefcount {
+	__s32 synx_obj;
+	__u32 count;
+};
+
+/**
+ * struct synx_id_info - info for import and export of a synx object
+ *
+ * @synx_obj     : Synx object to be exported
+ * @secure_key   : Secure key created in export and used in import
+ * @new_synx_obj : Synx object created in import
+ *
+ */
+struct synx_id_info {
+	__s32 synx_obj;
+	__u32 secure_key;
+	__s32 new_synx_obj;
+	__u32 padding;
+};
+
+/**
+ * struct synx_private_ioctl_arg - Sync driver ioctl argument
+ *
+ * @id        : IOCTL command id
+ * @size      : Size of command payload
+ * @result    : Result of command execution
+ * @reserved  : Reserved
+ * @ioctl_ptr : Pointer to user data
+ */
+struct synx_private_ioctl_arg {
+	__u32 id;
+	__u32 size;
+	__u32 result;
+	__u32 reserved;
+	__u64 ioctl_ptr;
+};
+
+#define SYNX_PRIVATE_MAGIC_NUM 's'
+
+#define SYNX_PRIVATE_IOCTL_CMD \
+	_IOWR(SYNX_PRIVATE_MAGIC_NUM, 130, struct synx_private_ioctl_arg)
+
+#define SYNX_CREATE                          0
+#define SYNX_RELEASE                         1
+#define SYNX_SIGNAL                          2
+#define SYNX_MERGE                           3
+#define SYNX_REGISTER_PAYLOAD                4
+#define SYNX_DEREGISTER_PAYLOAD              5
+#define SYNX_WAIT                            6
+#define SYNX_BIND                            7
+#define SYNX_ADDREFCOUNT                     8
+#define SYNX_GETSTATUS                       9
+#define SYNX_IMPORT                          10
+#define SYNX_EXPORT                          11
+
+#endif /* __UAPI_SYNX_H__ */