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/*
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* Copyright (C) 2013 Intel Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* 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,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#define _GNU_SOURCE
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#include <stdbool.h>
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#include <stddef.h>
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#include <string.h>
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#include "hal-utils.h"
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#include "hal-log.h"
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#include "hal.h"
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#include "hal-msg.h"
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#include "hal-ipc.h"
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static const btpan_callbacks_t *cbs = NULL;
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static bool interface_ready(void)
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{
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return cbs != NULL;
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}
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static void handle_conn_state(void *buf, uint16_t len, int fd)
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{
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struct hal_ev_pan_conn_state *ev = buf;
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if (cbs->connection_state_cb)
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cbs->connection_state_cb(ev->state, ev->status,
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(bt_bdaddr_t *) ev->bdaddr,
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ev->local_role, ev->remote_role);
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}
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static void handle_ctrl_state(void *buf, uint16_t len, int fd)
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{
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struct hal_ev_pan_ctrl_state *ev = buf;
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#if ANDROID_VERSION >= PLATFORM_VER(5, 0, 0)
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if (cbs->control_state_cb)
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cbs->control_state_cb(ev->state, ev->local_role, ev->status,
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(char *)ev->name);
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#else
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/*
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* Callback declared in bt_pan.h is 'typedef void
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* (*btpan_control_state_callback)(btpan_control_state_t state,
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* bt_status_t error, int local_role, const char* ifname);
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* But PanService.Java defined it wrong way.
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* private void onControlStateChanged(int local_role, int state,
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* int error, String ifname).
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* First and third parameters are misplaced, so sending data according
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* to PanService.Java.
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*/
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if (cbs->control_state_cb)
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cbs->control_state_cb(ev->local_role, ev->state, ev->status,
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(char *)ev->name);
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#endif
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}
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/*
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* handlers will be called from notification thread context,
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* index in table equals to 'opcode - HAL_MINIMUM_EVENT'
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*/
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static const struct hal_ipc_handler ev_handlers[] = {
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/* HAL_EV_PAN_CTRL_STATE */
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{ handle_ctrl_state, false, sizeof(struct hal_ev_pan_ctrl_state) },
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/* HAL_EV_PAN_CONN_STATE */
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{ handle_conn_state, false, sizeof(struct hal_ev_pan_conn_state) },
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};
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static bt_status_t pan_enable(int local_role)
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{
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struct hal_cmd_pan_enable cmd;
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DBG("");
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if (!interface_ready())
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return BT_STATUS_NOT_READY;
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cmd.local_role = local_role;
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return hal_ipc_cmd(HAL_SERVICE_ID_PAN, HAL_OP_PAN_ENABLE,
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sizeof(cmd), &cmd, NULL, NULL, NULL);
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}
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static int pan_get_local_role(void)
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{
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struct hal_rsp_pan_get_role rsp;
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size_t len = sizeof(rsp);
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bt_status_t status;
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DBG("");
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if (!interface_ready())
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return BTPAN_ROLE_NONE;
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status = hal_ipc_cmd(HAL_SERVICE_ID_PAN, HAL_OP_PAN_GET_ROLE, 0, NULL,
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&len, &rsp, NULL);
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if (status != BT_STATUS_SUCCESS)
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return BTPAN_ROLE_NONE;
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return rsp.local_role;
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}
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static bt_status_t pan_connect(const bt_bdaddr_t *bd_addr, int local_role,
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int remote_role)
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{
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struct hal_cmd_pan_connect cmd;
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DBG("");
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if (!interface_ready())
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return BT_STATUS_NOT_READY;
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memcpy(cmd.bdaddr, bd_addr, sizeof(cmd.bdaddr));
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cmd.local_role = local_role;
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cmd.remote_role = remote_role;
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return hal_ipc_cmd(HAL_SERVICE_ID_PAN, HAL_OP_PAN_CONNECT,
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sizeof(cmd), &cmd, NULL, NULL, NULL);
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}
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static bt_status_t pan_disconnect(const bt_bdaddr_t *bd_addr)
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{
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struct hal_cmd_pan_disconnect cmd;
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DBG("");
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if (!interface_ready())
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return BT_STATUS_NOT_READY;
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memcpy(cmd.bdaddr, bd_addr, sizeof(cmd.bdaddr));
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return hal_ipc_cmd(HAL_SERVICE_ID_PAN, HAL_OP_PAN_DISCONNECT,
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sizeof(cmd), &cmd, NULL, NULL, NULL);
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}
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static bt_status_t pan_init(const btpan_callbacks_t *callbacks)
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{
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struct hal_cmd_register_module cmd;
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int ret;
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DBG("");
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if (interface_ready())
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return BT_STATUS_DONE;
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cbs = callbacks;
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hal_ipc_register(HAL_SERVICE_ID_PAN, ev_handlers,
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sizeof(ev_handlers)/sizeof(ev_handlers[0]));
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cmd.service_id = HAL_SERVICE_ID_PAN;
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cmd.mode = HAL_MODE_DEFAULT;
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cmd.max_clients = 1;
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ret = hal_ipc_cmd(HAL_SERVICE_ID_CORE, HAL_OP_REGISTER_MODULE,
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sizeof(cmd), &cmd, NULL, NULL, NULL);
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if (ret != BT_STATUS_SUCCESS) {
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cbs = NULL;
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hal_ipc_unregister(HAL_SERVICE_ID_PAN);
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}
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return ret;
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}
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static void pan_cleanup(void)
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{
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struct hal_cmd_unregister_module cmd;
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DBG("");
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if (!interface_ready())
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return;
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cmd.service_id = HAL_SERVICE_ID_PAN;
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hal_ipc_cmd(HAL_SERVICE_ID_CORE, HAL_OP_UNREGISTER_MODULE,
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sizeof(cmd), &cmd, NULL, NULL, NULL);
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hal_ipc_unregister(HAL_SERVICE_ID_PAN);
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cbs = NULL;
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}
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static btpan_interface_t pan_if = {
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.size = sizeof(pan_if),
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.init = pan_init,
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.enable = pan_enable,
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.get_local_role = pan_get_local_role,
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.connect = pan_connect,
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.disconnect = pan_disconnect,
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.cleanup = pan_cleanup
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};
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btpan_interface_t *bt_get_pan_interface(void)
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{
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return &pan_if;
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}
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