1 /* 2 * Copyright (c) 2014 Intel Corporation. All rights reserved. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #define LOG_TAG "drm_vendor_api" 18 19 #include <log/log.h> 20 #include <dlfcn.h> 21 #include <string.h> 22 23 #include "drm_vendor_api.h" 24 25 #define LIB_DRM_VENDOR "libsepdrm_cc54.so" 26 27 uint32_t drm_vendor_api_init(struct drm_vendor_api *api) 28 { 29 uint32_t got_error = 0; 30 31 if (api == NULL) { 32 ALOGE("%s: NULL parameter provided", __func__); 33 return 1; 34 } 35 36 api->handle = dlopen(LIB_DRM_VENDOR, RTLD_NOW); 37 if (api->handle == NULL) { 38 ALOGE("%s: couldn't dlopen %s : %s", __func__, LIB_DRM_VENDOR, dlerror()); 39 drm_vendor_api_deinit(api); 40 return 1; 41 } else { 42 api->drm_keep_alive = (drm_keep_alive_t) dlsym(api->handle, "drm_keep_alive"); 43 if (api->drm_keep_alive == NULL) { 44 ALOGE("%s: couldn't dlsym drm_keep_alive in %s : %s", 45 __func__, LIB_DRM_VENDOR, dlerror()); 46 got_error = 1; 47 } 48 api->drm_start_playback = (drm_start_playback_t) dlsym(api->handle, "drm_start_playback"); 49 if (api->drm_start_playback == NULL) { 50 ALOGE("%s: couldn't dlsym drm_start_playback in %s : %s", 51 __func__, LIB_DRM_VENDOR, dlerror()); 52 got_error = 1; 53 } 54 api->drm_stop_playback = (drm_stop_playback_t) dlsym(api->handle, "drm_stop_playback"); 55 if (api->drm_stop_playback == NULL) { 56 ALOGE("%s: couldn't dlsym drm_stop_playback in %s : %s", 57 __func__, LIB_DRM_VENDOR, dlerror()); 58 got_error = 1; 59 } 60 api->drm_pr_return_naluheaders = (drm_pr_return_naluheaders_t) dlsym(api->handle, 61 "drm_pr_return_naluheaders"); 62 if (api->drm_pr_return_naluheaders == NULL) { 63 ALOGE("%s: couldn't dlsym drm_pr_return_naluheaders in %s : %s", 64 __func__, LIB_DRM_VENDOR, dlerror()); 65 got_error = 1; 66 } 67 api->drm_wv_return_naluheaders = 68 (drm_wv_return_naluheaders_t) dlsym(api->handle, "drm_wv_return_naluheaders"); 69 if (api->drm_wv_return_naluheaders == NULL) { 70 ALOGE("%s: couldn't dlsym drm_wv_return_naluheaders in %s : %s", 71 __func__, LIB_DRM_VENDOR, dlerror()); 72 got_error = 1; 73 } 74 if (got_error) { 75 drm_vendor_api_deinit(api); 76 return 1; 77 } 78 } 79 return 0; 80 } 81 82 uint32_t drm_vendor_api_deinit(struct drm_vendor_api *api) 83 { 84 if (api == NULL) { 85 ALOGE("%s: NULL parameter provided", __func__); 86 return 1; 87 } 88 if(api->handle) { 89 if (dlclose(api->handle)) { 90 ALOGE("%s: couldn't dlcose %s : %s", __func__, LIB_DRM_VENDOR, dlerror()); 91 return 1; 92 } 93 } 94 memset(api, 0, sizeof(struct drm_vendor_api)); 95 return 0; 96 } 97
