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      1 /*
      2 * Copyright (C) 2014 Invensense, Inc.
      3 *
      4 * Licensed under the Apache License, Version 2.0 (the "License");
      5 * you may not use this file except in compliance with the License.
      6 * You may obtain a copy of the License at
      7 *
      8 *      http://www.apache.org/licenses/LICENSE-2.0
      9 *
     10 * Unless required by applicable law or agreed to in writing, software
     11 * distributed under the License is distributed on an "AS IS" BASIS,
     12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13 * See the License for the specific language governing permissions and
     14 * limitations under the License.
     15 */
     16 
     17 #ifndef ANDROID_MPL_SUPPORT_H
     18 #define ANDROID_MPL_SUPPORT_H
     19 
     20 #include <stdint.h>
     21 
     22 int inv_read_data(char *fname, long *data);
     23 int read_attribute_sensor(int fd, char* data, unsigned int size);
     24 int enable_sysfs_sensor(int fd, int en);
     25 int write_attribute_sensor(int fd, long data);
     26 int write_attribute_sensor_continuous(int fd, long data);
     27 int read_sysfs_int64(char*, int64_t*);
     28 int read_sysfs_int(char*, int*);
     29 int write_sysfs_int(char*, int);
     30 int write_sysfs_longlong(char*, long long);
     31 int fill_dev_full_name_by_prefix(const char* dev_prefix,
     32                                  char* dev_full_name, int len);
     33 void dump_dmp_img(const char *out_file);
     34 int read_sysfs_dir(bool fileMode, char *sysfs_path);
     35 
     36 void convert_long_to_hex_char(long* quat, unsigned char* hex, int numElement);
     37 int inv_float_to_q16(float *fdata, long *ldata);
     38 int inv_long_to_q16(long *fdata, long *ldata);
     39 int inv_float_to_round(float *fdata, long *ldata);
     40 int inv_float_to_round2(float *fdata, short *sdata);
     41 int inv_long_to_float(long *ldata, float *fdata);
     42 
     43 #endif //  ANDROID_MPL_SUPPORT_H
     44