/*
 * Copyright (C) 2015, 2016 "IoT.bzh"
 * Author "Romain Forlot" <romain.forlot@iot.bzh>
 *
 * Licensed 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.
 */

/*
 * Interface between the daemon and the binding
 */
static const struct afb_binding_interface *interface;

/*
 * the type of position expected
 *
 * here, this type is the selection of protocol
 */
enum type {
	type_OBDII,
	type_CAN,
	type_DEFAULT = type_CAN,
	type_INVALID = -1
};

#define type_size sizeof(enum type)-2

/*
 * names of the types
 */
static const char * const type_NAMES[type_size] = {
	"OBDII",
	"CAN"
};

/* CAN variable initialization */
struct canfd_frame canfd_frame;

class can_handle {
	int socket;
	char *device;
	bool is_fdmode_on;
	struct sockaddr_can txAddress;
};

/*
 * each generated event
 */
typedef struct _event event;
struct _event {
	event *next;			/* link for the next event */
	const char *name;		/* name of the event */
	struct afb_event afb_event;	/* the event for the binder */
	openxc_CanMessage can_message;	/* value for the can_message */
};

/*
 * each can event, will browse by the id
 */
typedef struct _can_event can_event;
struct _can_event {
	can_event *next;	/* Link to the next other can message */
	event *events;		/* events for the can message */
	uint32_t id;		/* id of the event for unsubscribe */
	enum type type;		/* the type of data expected */
};

can_event *can_events_list;

// Initialize default can_handler values
static struct can_handler can_handler = {
	.socket = -1,
	.device = "vcan0",
	.is_fdmode_on = false,
};

/* Redefining openxc_CanMessage_init_default for C */
#ifdef openxc_CanMessage_init_default
#undef openxc_CanMessage_init_default
#endif
openxc_CanMessage openxc_CanMessage_init_default = {.has_bus = false, .bus = 0, .has_id = false, .id = 0, .has_data = false, .data = {0, {0}}, .has_frame_format = false, .frame_format = (openxc_CanMessage_FrameFormat)0};