raiden00pl commented on code in PR #8794: URL: https://github.com/apache/nuttx/pull/8794#discussion_r1133087928
########## drivers/wireless/bluetooth/bt_rpmsghci_server.c: ########## @@ -0,0 +1,547 @@ +/**************************************************************************** + * drivers/wireless/bluetooth/bt_rpmsghci_server.c + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <sys/param.h> + +#include <assert.h> +#include <debug.h> +#include <stdlib.h> + +#include <nuttx/rptun/openamp.h> + +#include "bt_rpmsghci.h" + +/**************************************************************************** + * Pre-processor definitions + ****************************************************************************/ + +/**************************************************************************** + * Private Types + ****************************************************************************/ + +struct rpmsghci_server_s +{ + struct rpmsg_endpoint ept; + FAR struct bt_driver_s *btdev; + FAR const char *name; + struct work_s work; +}; + +/**************************************************************************** + * Private Function Prototypes + ****************************************************************************/ + +static int rpmsghci_open_handler(FAR struct rpmsg_endpoint *ept, + FAR void *data, size_t len, + uint32_t src, FAR void *priv); +static int rpmsghci_close_handler(FAR struct rpmsg_endpoint *ept, + FAR void *data, size_t len, + uint32_t src, FAR void *priv); +static int rpmsghci_send_handler(FAR struct rpmsg_endpoint *ept, + FAR void *data, size_t len, + uint32_t src, FAR void *priv); +static int rpmsghci_ioctl_handler(FAR struct rpmsg_endpoint *ept, + FAR void *data, size_t len, + uint32_t src, FAR void *priv); +static int rpmsghci_default_handler(FAR struct rpmsg_endpoint *ept, + FAR void *data, size_t len, + uint32_t src, FAR void *priv); + +/**************************************************************************** + * Private Data + ****************************************************************************/ + +static const rpmsg_ept_cb g_rpmsghci_handler[] = +{ + rpmsghci_open_handler, /* RPMSGHCI_OPEN */ + rpmsghci_close_handler, /* RPMSGHCI_CLOSE */ + rpmsghci_send_handler, /* RPMSGHCI_SEND */ + rpmsghci_ioctl_handler, /* RPMSGHCI_IOCTL */ + rpmsghci_default_handler, /* RPMSGHCI_RECV */ +}; + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: rpmsghci_get_tx_payload_buffer + ****************************************************************************/ + +static FAR void * +rpmsghci_get_tx_payload_buffer(FAR struct rpmsghci_server_s *priv, + FAR uint32_t *len) +{ + return rpmsg_get_tx_payload_buffer(&priv->ept, len, true); +} + +/**************************************************************************** + * Name: rpmsghci_send + * + * Description: + * Send the rpmsg data and wait for ACK. + * + * Parameters: + * priv - rpmsg device handle + * command - the command, RPMSGHCI_OPEN, RPMSGHCI_CLOSE, RPMSGHCI_SEND, + * RPMSGHCI_IOCTL + * msg - the message header + * len - length of the payload + * + * Returned Values: + * OK on success; A negated errno value is returned on any failure. + * + ****************************************************************************/ + +static int rpmsghci_send(FAR struct rpmsghci_server_s *priv, + uint32_t command, FAR struct rpmsghci_header_s *msg, + int len) +{ + struct rpmsghci_cookie_s cookie; + int ret = OK; + + memset(&cookie, 0, sizeof(struct rpmsghci_cookie_s)); + nxsem_init(&cookie.sem, 0, 0); + + msg->command = command; + msg->result = -ENXIO; + msg->cookie = (uintptr_t)&cookie; + + ret = rpmsg_send_nocopy(&priv->ept, msg, len); + if (ret < 0) + { + goto errout; + } + + ret = rpmsg_wait(&priv->ept, &cookie.sem); Review Comment: `rpmsghci_send()` is used to send async events from HCI controller (`rpmsghci_bt_receive()`, which is called by `bt_netdev_receive()` macro from low-level HCI controller implementation). Responses are handled with `rpmsg_send()` -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: commits-unsubscr...@nuttx.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
