/*
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* Copyright (C) 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*/
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#include <dlfcn.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <string.h>
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#include <unistd.h>
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#define LOG_TAG "ese-sh"
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#include <ese/ese.h>
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#include <ese/log.h>
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#include "hw.h"
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void print_supported_hardware(const struct SupportedHardware *supported) {
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printf("Supported hardware:\n");
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for (size_t i = 0; i < supported->len; ++i) {
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printf("\t%s\t(%s / %s)\n", supported->hw[i].name, supported->hw[i].sym,
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supported->hw[i].lib);
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}
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}
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int find_supported_hardware(const struct SupportedHardware *supported,
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const char *name) {
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for (size_t i = 0; i < supported->len; ++i) {
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if (!strcmp(name, supported->hw[i].name)) {
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return (int)i;
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}
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}
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return -1;
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}
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/* This should be C++. */
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void release_hardware(const struct Hardware *hw) {
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void *hw_handle = dlopen(hw->lib, RTLD_NOW);
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/* Close for the above open and the original. */
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dlclose(hw_handle);
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dlclose(hw_handle);
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}
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bool initialize_hardware(struct EseInterface *ese, const struct Hardware *hw) {
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void *hw_handle = dlopen(hw->lib, RTLD_NOW);
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if (!hw_handle) {
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fprintf(stderr, "Failed to open hardware implementation: %s\n", dlerror());
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return false;
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}
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const struct EseOperations **hw_ops = dlsym(hw_handle, hw->sym);
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if (!hw_ops) {
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fprintf(stderr, "Failed to find hardware implementation: %s\n", dlerror());
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return false;
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}
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/* N.b., ese_init appends _ops to the second argument. */
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ese_init(ese, *hw);
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return true;
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}
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