Index: third_party/hwcplus/src/hardware.c |
diff --git a/third_party/hwcplus/src/hardware.c b/third_party/hwcplus/src/hardware.c |
deleted file mode 100644 |
index 4ff293d243cefae991b156e93c9925d396d82f91..0000000000000000000000000000000000000000 |
--- a/third_party/hwcplus/src/hardware.c |
+++ /dev/null |
@@ -1,220 +0,0 @@ |
-/* |
- * Copyright (C) 2008 The Android Open Source Project |
- * |
- * Licensed under the Apache License, Version 2.0 (the "License"); |
- * you may not use this file except in compliance with the License. |
- * You may obtain a copy of the License at |
- * |
- * http://www.apache.org/licenses/LICENSE-2.0 |
- * |
- * Unless required by applicable law or agreed to in writing, software |
- * distributed under the License is distributed on an "AS IS" BASIS, |
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
- * See the License for the specific language governing permissions and |
- * limitations under the License. |
- */ |
- |
-#include <hardware/hardware.h> |
- |
-#include <cutils/properties.h> |
- |
-#include <dlfcn.h> |
-#include <string.h> |
-#include <pthread.h> |
-#include <errno.h> |
-#include <limits.h> |
-#include <stdlib.h> |
- |
-#define LOG_TAG "HAL" |
-#ifdef ANDROID |
-#include <utils/Log.h> |
-#else |
-#include <stdio.h> |
-#include <unistd.h> |
-#include <log/log.h> |
-#endif |
- |
-#if defined(__LP64__) |
-#define _64 "64" |
-#else |
-#define _64 "" |
-#endif |
- |
-/** Base path of the hal modules */ |
-#ifndef HAL_LIBRARY_PATH1 |
-#define HAL_LIBRARY_PATH1 "/system/lib" _64 "/hw" |
-#endif |
-#ifndef HAL_LIBRARY_PATH2 |
-#define HAL_LIBRARY_PATH2 "/vendor/lib" _64 "/hw" |
-#endif |
- |
-/** |
- * There are a set of variant filename for modules. The form of the filename |
- * is "<MODULE_ID>.variant.so" so for the led module the Dream variants |
- * of base "ro.product.board", "ro.board.platform" and "ro.arch" would be: |
- * |
- * led.trout.so |
- * led.msm7k.so |
- * led.ARMV6.so |
- * led.default.so |
- */ |
- |
-static const char *variant_keys[] = { |
- "ro.hardware", /* This goes first so that it can pick up a different |
- file on the emulator. */ |
- "ro.product.board", |
- "ro.board.platform", |
- "ro.arch" |
-}; |
- |
-static const int HAL_VARIANT_KEYS_COUNT = |
- (sizeof(variant_keys)/sizeof(variant_keys[0])); |
- |
-/** |
- * Load the file defined by the variant and if successful |
- * return the dlopen handle and the hmi. |
- * @return 0 = success, !0 = failure. |
- */ |
-static int load(const char *id, |
- const char *path, |
- const struct hw_module_t **pHmi) |
-{ |
- int status; |
- void *handle; |
- struct hw_module_t *hmi; |
- |
- /* |
- * load the symbols resolving undefined symbols before |
- * dlopen returns. Since RTLD_GLOBAL is not or'd in with |
- * RTLD_NOW the external symbols will not be global |
- */ |
- handle = dlopen(path, RTLD_NOW); |
- if (handle == NULL) { |
- char const *err_str = dlerror(); |
- ALOGE("load: module=%s\n%s", path, err_str?err_str:"unknown"); |
- status = -EINVAL; |
- goto done; |
- } |
- |
- /* Get the address of the struct hal_module_info. */ |
- const char *sym = HAL_MODULE_INFO_SYM_AS_STR; |
- hmi = (struct hw_module_t *)dlsym(handle, sym); |
- if (hmi == NULL) { |
- ALOGE("load: couldn't find symbol %s", sym); |
- status = -EINVAL; |
- goto done; |
- } |
- |
- /* Check that the id matches */ |
- if (strcmp(id, hmi->id) != 0) { |
- ALOGE("load: id=%s != hmi->id=%s", id, hmi->id); |
- status = -EINVAL; |
- goto done; |
- } |
- |
- hmi->dso = handle; |
- |
- /* success */ |
- status = 0; |
- |
- done: |
- if (status != 0) { |
- hmi = NULL; |
- if (handle != NULL) { |
- dlclose(handle); |
- handle = NULL; |
- } |
- } else { |
- ALOGV("loaded HAL id=%s path=%s hmi=%p handle=%p", |
- id, path, *pHmi, handle); |
- } |
- |
- *pHmi = hmi; |
- |
- return status; |
-} |
- |
-/* |
- * Check if a HAL with given name and subname exists, if so return 0, otherwise |
- * otherwise return negative. On success path will contain the path to the HAL. |
- */ |
-static int hw_module_exists(char *path, size_t path_len, const char *name, |
- const char *subname) |
-{ |
- char *hal_library_path = getenv("HAL_LIBRARY_PATH"); |
- if (hal_library_path) { |
- snprintf(path, path_len, "%s/%s.%s.so", |
- hal_library_path, name, subname); |
- if (access(path, R_OK) == 0) |
- return 0; |
- } |
- |
- snprintf(path, path_len, "%s/%s.%s.so", |
- HAL_LIBRARY_PATH2, name, subname); |
- if (access(path, R_OK) == 0) |
- return 0; |
- |
- snprintf(path, path_len, "%s/%s.%s.so", |
- HAL_LIBRARY_PATH1, name, subname); |
- if (access(path, R_OK) == 0) |
- return 0; |
- |
- return -ENOENT; |
-} |
- |
-int hw_get_module_by_class(const char *class_id, const char *inst, |
- const struct hw_module_t **module) |
-{ |
- int i; |
- char prop[PATH_MAX]; |
- char path[PATH_MAX]; |
- char name[PATH_MAX]; |
- char prop_name[PATH_MAX]; |
- |
- if (inst) |
- snprintf(name, PATH_MAX, "%s.%s", class_id, inst); |
- else |
- strlcpy(name, class_id, PATH_MAX); |
- |
- /* |
- * Here we rely on the fact that calling dlopen multiple times on |
- * the same .so will simply increment a refcount (and not load |
- * a new copy of the library). |
- * We also assume that dlopen() is thread-safe. |
- */ |
- |
- /* First try a property specific to the class and possibly instance */ |
- snprintf(prop_name, sizeof(prop_name), "ro.hardware.%s", name); |
- if (property_get(prop_name, prop, NULL) > 0) { |
- if (hw_module_exists(path, sizeof(path), name, prop) == 0) { |
- goto found; |
- } |
- } |
- |
- /* Loop through the configuration variants looking for a module */ |
- for (i=0 ; i<HAL_VARIANT_KEYS_COUNT; i++) { |
- if (property_get(variant_keys[i], prop, NULL) == 0) { |
- continue; |
- } |
- if (hw_module_exists(path, sizeof(path), name, prop) == 0) { |
- goto found; |
- } |
- } |
- |
- /* Nothing found, try the default */ |
- if (hw_module_exists(path, sizeof(path), name, "default") == 0) { |
- goto found; |
- } |
- |
- return -ENOENT; |
- |
-found: |
- /* load the module, if this fails, we're doomed, and we should not try |
- * to load a different variant. */ |
- return load(class_id, path, module); |
-} |
- |
-int hw_get_module(const char *id, const struct hw_module_t **module) |
-{ |
- return hw_get_module_by_class(id, NULL, module); |
-} |