/*
 * Copyright (C) 2013 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.
 */

#define LOG_TAG "memtrack_rk"
#define LOG_NDDEBUG 1
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#include <log/log.h>

#include <hardware/memtrack.h>

#include "memtrack.h"




int rk_memtrack_init(const struct memtrack_module *module )
{
    if(!module)
        return -1;
    return 0;
}

int rk_memtrack_get_memory(const struct memtrack_module *module,
                                pid_t pid,
                                int type,
                                struct memtrack_record *records,
                                size_t *num_records)
{
    //ALOGD("%s: pid=%d,type=%d", __FUNCTION__,pid,type);

    if(!module)
        return -1;
    if (type == MEMTRACK_TYPE_GL)
    {
         return gl_memtrack_get_memory(pid, type, records, num_records);
    }

    else if (type == MEMTRACK_TYPE_GRAPHICS)
    {
        return egl_memtrack_get_memory(pid, type, records, num_records);
    }

    return -EINVAL;
}

static int memtrack_open(__attribute__((unused)) const hw_module_t* module, const char* name,
     hw_device_t** device)
{
  ALOGD("%s: enter; name=%s", __FUNCTION__, name);
  int retval = 0; /* 0 is ok; -1 is error */

  if (strcmp(name, "memtrack") == 0) {
    struct memtrack_module *dev = (struct memtrack_module *)calloc(1,sizeof(struct memtrack_module));

    if (dev) {
      /* Common hw_device_t fields */
      dev->common.tag = HARDWARE_DEVICE_TAG;
      dev->common.module_api_version = MEMTRACK_MODULE_API_VERSION_0_1;
      dev->common.hal_api_version = HARDWARE_HAL_API_VERSION;

      dev->init = rk_memtrack_init;
      dev->getMemory = rk_memtrack_get_memory;

      *device = (hw_device_t*)dev;
    } else
      retval = -ENOMEM;
  } else {
    retval = -EINVAL;
  }

  ALOGD("%s: exit %d", __FUNCTION__, retval);
  return retval;
}

static struct hw_module_methods_t memtrack_module_methods = {
 .open = memtrack_open,
};


struct memtrack_module HAL_MODULE_INFO_SYM = {
    .common= {
        .tag = HARDWARE_MODULE_TAG,
        .module_api_version = MEMTRACK_MODULE_API_VERSION_0_1,
        .hal_api_version = HARDWARE_HAL_API_VERSION,
        .id = MEMTRACK_HARDWARE_MODULE_ID,
        .name = "RK Memory Tracker HAL",
        .author = "RK Open Source Project",
        .methods = &memtrack_module_methods,
    },

    .init = rk_memtrack_init,
    .getMemory = rk_memtrack_get_memory,
};