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 35 namespace qClient { 36 class QHDMIClient; 37 }; 38 39 namespace qhdmicec { 40 41 #define SYSFS_BASE "/sys/class/graphics/fb" 42 #define MAX_PATH_LENGTH 128 43 44 struct 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 52 struct 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 70 void cec_receive_message(cec_context_t *ctx, char *msg, ssize_t len); 71 void cec_hdmi_hotplug(cec_context_t *ctx, int connected); 72 73 }; //namespace 74 #endif /* end of include guard: QHDMI_CEC_H */ 75