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