91 lines
2.9 KiB
C
91 lines
2.9 KiB
C
/*
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* Copyright (c) 2009-2013, Google Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Google, Inc. nor the names of its contributors
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* may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <dlfcn.h>
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#include <hardware/hardware.h>
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#include "debug.h"
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#include "trigger.h"
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#include "protocol.h"
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#include "vendor_trigger.h"
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static const int version = 1;
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static struct vendor_trigger_t *triggers = NULL;
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int load_trigger() {
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int err;
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hw_module_t* module;
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hw_device_t* device;
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int libversion;
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err = hw_get_module(TRIGGER_MODULE_ID, (hw_module_t const**)&module);
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if (err == 0) {
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err = module->methods->open(module, NULL, &device);
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if (err == 0) {
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triggers = (struct vendor_trigger_t *) device;
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} else {
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D(WARN, "Libvendor load error");
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return 1;
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}
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}
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else {
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D(WARN, "Libvendor not load: %s", strerror(-err));
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return 0;
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}
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if (triggers->check_version != NULL &&
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triggers->check_version(version, &libversion)) {
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triggers = NULL;
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D(ERR, "Library report incompability");
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return 1;
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}
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D(INFO, "libvendortrigger loaded");
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return 0;
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}
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int trigger_oem_cmd(const char *arg, const char **response) {
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if (triggers != NULL && triggers->oem_cmd != NULL)
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return triggers->oem_cmd(arg, response);
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return 0;
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}
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int trigger_gpt_layout(struct GPT_content *table) {
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if (triggers != NULL && triggers->gpt_layout != NULL)
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return triggers->gpt_layout(table);
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return 0;
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}
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