1/*
2* Copyright (c) 2014 The Linux Foundation. All rights reserved.
3*
4* Redistribution and use in source and binary forms, with or without
5* modification, are permitted provided that the following conditions are
6* met:
7*    * Redistributions of source code must retain the above copyright
8*      notice, this list of conditions and the following disclaimer.
9*    * Redistributions in binary form must reproduce the above
10*      copyright notice, this list of conditions and the following
11*      disclaimer in the documentation and/or other materials provided
12*      with the distribution.
13*    * Neither the name of The Linux Foundation. nor the names of its
14*      contributors may be used to endorse or promote products derived
15*      from this software without specific prior written permission.
16*
17* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
18* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
19* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
20* ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
21* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
24* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
26* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
27* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28*/
29#ifndef QHDMI_CEC_H
30#define QHDMI_CEC_H
31
32#include <hardware/hdmi_cec.h>
33#include <utils/RefBase.h>
34
35namespace qClient {
36    class QHDMIClient;
37};
38
39namespace qhdmicec {
40
41#define SYSFS_BASE  "/sys/class/graphics/fb"
42#define MAX_PATH_LENGTH  128
43
44struct cec_callback_t {
45    // Function in HDMI service to call back on CEC messages
46    event_callback_t callback_func;
47    // This stores the object to pass back to the framework
48    void* callback_arg;
49
50};
51
52struct cec_context_t {
53    hdmi_cec_device_t device;    // Device for HW module
54    cec_callback_t callback;     // Struct storing callback object
55    bool enabled;
56    bool arc_enabled;
57    bool system_control;         // If true, HAL/driver handle CEC messages
58    int fb_num;                  // Framebuffer node for HDMI
59    char fb_sysfs_path[MAX_PATH_LENGTH];
60    hdmi_port_info *port_info;   // HDMI port info
61
62    // Logical address is stored in an array, the index of the array is the
63    // logical address and the value in the index shows whether it is set or not
64    int logical_address[CEC_ADDR_BROADCAST];
65    int version;
66    uint32_t vendor_id;
67    android::sp<qClient::QHDMIClient> disp_client;
68};
69
70void cec_receive_message(cec_context_t *ctx, char *msg, ssize_t len);
71void cec_hdmi_hotplug(cec_context_t *ctx, int connected);
72
73}; //namespace
74#endif /* end of include guard: QHDMI_CEC_H */
75