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/*
* Copyright (c) 2017 The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef QHDMI_CEC_H
#define QHDMI_CEC_H
#include <hardware/hdmi_cec.h>
#include <sys/poll.h>
#include <sys/prctl.h>
#include <sys/socket.h>
#include <sys/resource.h>
#include <linux/netlink.h>
#include <thread>
#include <vector>
namespace qhdmicec {
static const int MAX_STRING_LENGTH = 1024;
struct cec_callback_t {
// Function in HDMI service to call back on CEC messages
event_callback_t callback_func;
// This stores the object to pass back to the framework
void* callback_arg;
};
struct eventData;
struct cec_context_t {
hdmi_cec_device_t device; // Device for HW module
cec_callback_t callback; // Struct storing callback object
bool enabled;
bool arc_enabled;
bool system_control; // If true, HAL/driver handle CEC messages
int fb_num; // Framebuffer node for HDMI
std::string fb_sysfs_path;
hdmi_port_info *port_info; // HDMI port info
// Logical address is stored in an array, the index of the array is the
// logical address and the value in the index shows whether it is set or not
int logical_address[CEC_ADDR_BROADCAST];
int version;
uint32_t vendor_id;
std::vector<pollfd> poll_fds; // poll fds for cec message monitor and exit signal
// on cec message monitor thread
int exit_fd = -1;
bool cec_exit_thread = false;
std::thread hdmi_cec_monitor; // hdmi plugin monitor thread variable
char data[MAX_STRING_LENGTH] = {0};
std::vector<std::string> node_list = {};
std::vector<eventData> event_data_list = {};
};
struct eventData {
const char* event_name = NULL;
void (*event_parser)(cec_context_t* ctx, uint32_t node_event) = NULL;
};
void cec_receive_message(cec_context_t *ctx, char *msg, ssize_t len);
void cec_hdmi_hotplug(cec_context_t *ctx, int connected);
}; //namespace
#endif /* end of include guard: QHDMI_CEC_H */
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