789081673f
This is a start to move away from the C99 {u}int{8,16,32,64}_t types to
Zephyr defined u{8,16,32,64}_t and s{8,16,32,64}_t. This allows Zephyr
to define the sized types in a consistent manor across all the
architectures we support and not conflict with what various compilers
and libc might do with regards to the C99 types.
We introduce <zephyr/types.h> as part of this and have it include
<stdint.h> for now until we transition all the code away from the C99
types.
We go with u{8,16,32,64}_t and s{8,16,32,64}_t as there are some
existing variables defined u8 & u16 as well as to be consistent with
Zephyr naming conventions.
Jira: ZEP-2051
Change-Id: I451fed0623b029d65866622e478225dfab2c0ca8
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
187 lines
5.8 KiB
C
187 lines
5.8 KiB
C
/*
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* Copyright (c) 2016 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/types.h>
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#include <net/buf.h>
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/** Identifiers of the signature supported by the RPC */
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enum {
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SIG_TYPE_NONE = 1,
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SIG_TYPE_S,
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SIG_TYPE_P,
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SIG_TYPE_S_B,
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SIG_TYPE_B_B_P,
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SIG_TYPE_S_P,
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SIG_TYPE_S_B_P,
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SIG_TYPE_S_B_B_P,
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SIG_TYPE_CONTROL = 0xFF
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};
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/**
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* RPC memory allocation function, must be implemented by the user of the RPC.
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*
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* This function is called by the RPC mechanism to allocate a buffer for
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* transmission of a serialized function. The function should not fail.
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*
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* @param length Length of the buffer to allocate.
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*
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* @return Pointer to the allocated buffer, the allocation shall not fail,
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* error must be handled internally
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*/
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struct net_buf *rpc_alloc_cb(uint16_t length);
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/**
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* RPC transmission function, must be implemented by the user of the RPC.
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*
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* @param buf Pointer to the buffer allocated for transmission
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* by @ref rpc_alloc_cb
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*/
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void rpc_transmit_cb(struct net_buf *buf);
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/**
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* RPC initialization function that notifies the peer with an initialization
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* packet containing the information to check the compatibility of the
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* frameworks.
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*
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* @param version Local version to send to the peer.
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*/
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void rpc_init(uint32_t version);
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/**
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* RPC initialization packet reception function, can optionally be implemented
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* by the user of the RPC. If this function is not implemented, it will default
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* to an empty function.
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*
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* This function is called by the RPC mechanism when an initialization packet is
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* received from the connected peer.
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*
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* @param version Peer advertised version.
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* @param compatible True if the peer runs a compatible RPC framework.
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*/
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void rpc_init_cb(uint32_t version, bool compatible);
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/** RPC serialize hash number generation.
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*
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* @return The unique identifier of the RPC deserialization.
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*/
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uint32_t rpc_serialize_hash(void);
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/**
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* RPC serialization function to serialize a function that does not require any
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* parameter.
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*
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* @param fn_index Index of the function
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*/
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void rpc_serialize_none(uint8_t fn_index);
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/**
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* RPC serialization function to serialize a function that expects a structure
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* as parameter.
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*
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* @param fn_index Index of the function
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* @param struct_data Pointer to the structure to serialize
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* @param struct_length Length of the structure to serialize
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*/
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void rpc_serialize_s(uint8_t fn_index, const void *struct_data,
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uint8_t struct_length);
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/**
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* RPC serialization function to serialize a function that expects a structure
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* and a pointer as parameters.
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*
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* @param fn_index Index of the function
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* @param struct_data Pointer to the structure to serialize
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* @param struct_length Length of the structure to serialize
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* @param p_priv Pointer to serialize
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*/
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void rpc_serialize_s_p(uint8_t fn_index, const void *struct_data,
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uint8_t struct_length, void *p_priv);
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/**
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* RPC serialization function to serialize a function that expects a pointer as
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* parameter.
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*
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* @param fn_index Index of the function
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* @param p_priv Pointer to serialize
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*/
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void rpc_serialize_p(uint8_t fn_index, void *p_priv);
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/**
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* RPC serialization function to serialize a function that expects a structure
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* and a buffer as parameters.
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*
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* @param fn_index Index of the function
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* @param struct_data Pointer to the structure to serialize
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* @param struct_length Length of the structure to serialize
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* @param vbuf Pointer to the buffer to serialize
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* @param vbuf_length Length of the buffer to serialize
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*/
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void rpc_serialize_s_b(uint8_t fn_index, const void *struct_data,
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uint8_t struct_length, const void *vbuf,
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uint16_t vbuf_length);
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/**
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* RPC serialization function to serialize a function that expects a structure
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* and a buffer as parameters.
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*
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* @param fn_index Index of the function
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* @param vbuf1 Pointer to the buffer1 to serialize
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* @param vbuf1_length Length of the buffer1 to serialize
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* @param vbuf2 Pointer to the buffer2 to serialize
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* @param vbuf2_length Length of the buffer2 to serialize
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* @param p_priv Pointer to serialize
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*/
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void rpc_serialize_b_b_p(uint8_t fn_index, const void *vbuf1,
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uint16_t vbuf1_length, const void *vbuf2,
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uint16_t vbuf2_length, void *p_priv);
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/**
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* RPC serialization function to serialize a function that expects a structure
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* and a buffer as parameters.
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*
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* @param fn_index Index of the function
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* @param struct_data Pointer to the structure to serialize
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* @param struct_length Length of the structure to serialize
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* @param vbuf Pointer to the buffer to serialize
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* @param vbuf_length Length of the buffer to serialize
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* @param p_priv Pointer to serialize
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*/
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void rpc_serialize_s_b_p(uint8_t fn_index, const void *struct_data,
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uint8_t struct_length, const void *vbuf,
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uint16_t vbuf_length, void *p_priv);
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/**
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* RPC serialization function to serialize a function that expects a structure
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* and a buffer as parameters.
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*
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* @param fn_index Index of the function
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* @param struct_data Pointer to the structure to serialize
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* @param struct_length Length of the structure to serialize
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* @param vbuf1 Pointer to the buffer1 to serialize
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* @param vbuf1_length Length of the buffer1 to serialize
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* @param vbuf2 Pointer to the buffer2 to serialize
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* @param vbuf2_length2 Length of the buffer2 to serialize
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* @param p_priv Pointer to serialize
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*/
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void rpc_serialize_s_b_b_p(uint8_t fn_index, const void *struct_data,
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uint8_t struct_length, const void *vbuf1,
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uint16_t vbuf1_length, const void *vbuf2,
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uint16_t vbuf2_length, void *p_priv);
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/**
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* RPC deserialization function, shall be invoked when a buffer is received
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* over the transport interface.
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*
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* @param buf Pointer to the received buffer
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*/
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void rpc_deserialize(struct net_buf *buf);
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/** RPC deserialize hash number generation.
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*
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* @return The unique identifier of the RPC deserialization.
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*/
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uint32_t rpc_deserialize_hash(void);
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