ab47465dd5
Add get_local_cpuname to the rpmsg framework ops to support communicate with the same remote core with multi rpmsg transport. Some rpmsg services will send local cpu name to remote core and then let remote core to connect local core by using this cpu name, when there are multi rpmsg channels with same remote core, the remote core may connect to incorrect core, so use the error rpmsg channel. For example, there are two rpmsg channels between ap and audio: ap core audio core [ap1] <-- rpmsg virtio1 --> [audio1] [ap2] <-- rpmsg virtio2 --> [audio2] When we want to use the rpmsg virtio1 to communicate, ap core may send local cpuname "ap2" to audio, so the audio core use remote cpu "ap2" to connect with ap, and resulting in the use of incorrect rpmsg channel. Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
142 lines
5.4 KiB
C
142 lines
5.4 KiB
C
/****************************************************************************
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* include/nuttx/rpmsg/rpmsg.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __INCLUDE_NUTTX_RPMSG_RPMSG_H
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#define __INCLUDE_NUTTX_RPMSG_RPMSG_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#ifdef CONFIG_RPMSG
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#include <nuttx/fs/ioctl.h>
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#include <nuttx/rpmsg/rpmsg_ping.h>
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#include <openamp/rpmsg.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define RPMSGIOC_PANIC _RPMSGIOC(1)
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#define RPMSGIOC_DUMP _RPMSGIOC(2)
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#define RPMSGIOC_PING _RPMSGIOC(3)
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/****************************************************************************
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* Public Types
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****************************************************************************/
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struct rpmsg_s
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{
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bool init;
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struct metal_list bind;
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rmutex_t lock;
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struct metal_list node;
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FAR const struct rpmsg_ops_s *ops;
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#ifdef CONFIG_RPMSG_PING
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struct rpmsg_endpoint ping;
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#endif
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struct rpmsg_device rdev[0];
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};
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/**
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* struct rpmsg_ops_s - Rpmsg device operations
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* wait: wait sem.
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* post: post sem.
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* get_cpuname: get cpu name.
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* get_tx_buffer_size: get tx buffer size.
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* get_rx_buffer_size: get rx buffer size.
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*/
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struct rpmsg_ops_s
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{
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CODE int (*wait)(FAR struct rpmsg_s *rpmsg, FAR sem_t *sem);
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CODE int (*post)(FAR struct rpmsg_s *rpmsg, FAR sem_t *sem);
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CODE int (*ioctl)(FAR struct rpmsg_s *rpmsg, int cmd, unsigned long arg);
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CODE void (*panic)(FAR struct rpmsg_s *rpmsg);
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CODE void (*dump)(FAR struct rpmsg_s *rpmsg);
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CODE FAR const char *(*get_local_cpuname)(FAR struct rpmsg_s *rpmsg);
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CODE FAR const char *(*get_cpuname)(FAR struct rpmsg_s *rpmsg);
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CODE int (*get_tx_buffer_size)(FAR struct rpmsg_s *rpmsg);
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CODE int (*get_rx_buffer_size)(FAR struct rpmsg_s *rpmsg);
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};
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CODE typedef void (*rpmsg_dev_cb_t)(FAR struct rpmsg_device *rdev,
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FAR void *priv);
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CODE typedef bool (*rpmsg_match_cb_t)(FAR struct rpmsg_device *rdev,
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FAR void *priv, FAR const char *name,
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uint32_t dest);
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CODE typedef void (*rpmsg_bind_cb_t)(FAR struct rpmsg_device *rdev,
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FAR void *priv, FAR const char *name,
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uint32_t dest);
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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int rpmsg_wait(FAR struct rpmsg_endpoint *ept, FAR sem_t *sem);
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int rpmsg_post(FAR struct rpmsg_endpoint *ept, FAR sem_t *sem);
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FAR const char *rpmsg_get_local_cpuname(FAR struct rpmsg_device *rdev);
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FAR const char *rpmsg_get_cpuname(FAR struct rpmsg_device *rdev);
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int rpmsg_get_tx_buffer_size(FAR struct rpmsg_device *rdev);
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int rpmsg_get_rx_buffer_size(FAR struct rpmsg_device *rdev);
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int rpmsg_register_callback(FAR void *priv,
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rpmsg_dev_cb_t device_created,
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rpmsg_dev_cb_t device_destroy,
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rpmsg_match_cb_t ns_match,
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rpmsg_bind_cb_t ns_bind);
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void rpmsg_unregister_callback(FAR void *priv,
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rpmsg_dev_cb_t device_created,
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rpmsg_dev_cb_t device_destroy,
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rpmsg_match_cb_t ns_match,
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rpmsg_bind_cb_t ns_bind);
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void rpmsg_ns_bind(FAR struct rpmsg_device *rdev,
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FAR const char *name, uint32_t dest);
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void rpmsg_ns_unbind(FAR struct rpmsg_device *rdev,
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FAR const char *name, uint32_t dest);
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void rpmsg_device_created(FAR struct rpmsg_s *rpmsg);
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void rpmsg_device_destory(FAR struct rpmsg_s *rpmsg);
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int rpmsg_register(FAR const char *path, FAR struct rpmsg_s *rpmsg,
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FAR const struct rpmsg_ops_s *ops);
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void rpmsg_unregister(FAR const char *path, FAR struct rpmsg_s *rpmsg);
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int rpmsg_ioctl(FAR const char *cpuname, int cmd, unsigned long arg);
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int rpmsg_panic(FAR const char *cpuname);
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void rpmsg_dump_all(void);
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#ifdef __cplusplus
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}
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#endif
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#endif /* CONFIG_RPMSG */
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#endif /* __INCLUDE_NUTTX_RPMSG_RPMSG_H */
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