kernel/drivers/greybus/arpc.h
2024-07-22 17:22:30 +08:00

64 lines
1.3 KiB
C

/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
/*
* Copyright(c) 2016 Google Inc. All rights reserved.
* Copyright(c) 2016 Linaro Ltd. All rights reserved.
*/
#ifndef __ARPC_H
#define __ARPC_H
/* APBridgeA RPC (ARPC) */
enum arpc_result {
ARPC_SUCCESS = 0x00,
ARPC_NO_MEMORY = 0x01,
ARPC_INVALID = 0x02,
ARPC_TIMEOUT = 0x03,
ARPC_UNKNOWN_ERROR = 0xff,
};
struct arpc_request_message {
__le16 id; /* RPC unique id */
__le16 size; /* Size in bytes of header + payload */
__u8 type; /* RPC type */
__u8 data[]; /* ARPC data */
} __packed;
struct arpc_response_message {
__le16 id; /* RPC unique id */
__u8 result; /* Result of RPC */
} __packed;
/* ARPC requests */
#define ARPC_TYPE_CPORT_CONNECTED 0x01
#define ARPC_TYPE_CPORT_QUIESCE 0x02
#define ARPC_TYPE_CPORT_CLEAR 0x03
#define ARPC_TYPE_CPORT_FLUSH 0x04
#define ARPC_TYPE_CPORT_SHUTDOWN 0x05
struct arpc_cport_connected_req {
__le16 cport_id;
} __packed;
struct arpc_cport_quiesce_req {
__le16 cport_id;
__le16 peer_space;
__le16 timeout;
} __packed;
struct arpc_cport_clear_req {
__le16 cport_id;
} __packed;
struct arpc_cport_flush_req {
__le16 cport_id;
} __packed;
struct arpc_cport_shutdown_req {
__le16 cport_id;
__le16 timeout;
__u8 phase;
} __packed;
#endif /* __ARPC_H */