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