1 /* 2 $License: 3 Copyright 2011 InvenSense, Inc. 4 5 Licensed under the Apache License, Version 2.0 (the "License"); 6 you may not use this file except in compliance with the License. 7 You may obtain a copy of the License at 8 9 http://www.apache.org/licenses/LICENSE-2.0 10 11 Unless required by applicable law or agreed to in writing, software 12 distributed under the License is distributed on an "AS IS" BASIS, 13 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 See the License for the specific language governing permissions and 15 limitations under the License. 16 $ 17 */ 18 19 #ifndef _MLOS_H 20 #define _MLOS_H 21 22 #ifndef __KERNEL__ 23 #include <stdio.h> 24 #endif 25 26 #include "mltypes.h" 27 28 #ifdef __cplusplus 29 extern "C" { 30 #endif 31 32 #if defined(LINUX) || defined(__KERNEL__) 33 #include <stdint.h> 34 typedef uintptr_t HANDLE; 35 #endif 36 37 /* ------------ */ 38 /* - Defines. - */ 39 /* ------------ */ 40 41 /* - MLOSCreateFile defines. - */ 42 43 #define MLOS_GENERIC_READ ((unsigned int)0x80000000) 44 #define MLOS_GENERIC_WRITE ((unsigned int)0x40000000) 45 #define MLOS_FILE_SHARE_READ ((unsigned int)0x00000001) 46 #define MLOS_FILE_SHARE_WRITE ((unsigned int)0x00000002) 47 #define MLOS_OPEN_EXISTING ((unsigned int)0x00000003) 48 49 /* ---------- */ 50 /* - Enums. - */ 51 /* ---------- */ 52 53 /* --------------- */ 54 /* - Structures. - */ 55 /* --------------- */ 56 57 /* --------------------- */ 58 /* - Function p-types. - */ 59 /* --------------------- */ 60 61 #ifndef __KERNEL__ 62 #include <string.h> 63 void *inv_malloc(unsigned int numBytes); 64 inv_error_t inv_free(void *ptr); 65 inv_error_t inv_create_mutex(HANDLE *mutex); 66 inv_error_t inv_lock_mutex(HANDLE mutex); 67 inv_error_t inv_unlock_mutex(HANDLE mutex); 68 FILE *inv_fopen(char *filename); 69 void inv_fclose(FILE *fp); 70 71 inv_error_t inv_destroy_mutex(HANDLE handle); 72 73 void inv_sleep(int mSecs); 74 unsigned long inv_get_tick_count(void); 75 76 /* Kernel implmentations */ 77 #define GFP_KERNEL (0x70) kmalloc(size_t size,unsigned int gfp_flags)78 static inline void *kmalloc(size_t size, 79 unsigned int gfp_flags) 80 { 81 return inv_malloc((unsigned int)size); 82 } kzalloc(size_t size,unsigned int gfp_flags)83 static inline void *kzalloc(size_t size, unsigned int gfp_flags) 84 { 85 void *tmp = inv_malloc((unsigned int)size); 86 if (tmp) 87 memset(tmp, 0, size); 88 return tmp; 89 } kfree(void * ptr)90 static inline void kfree(void *ptr) 91 { 92 inv_free(ptr); 93 } msleep(long msecs)94 static inline void msleep(long msecs) 95 { 96 inv_sleep(msecs); 97 } udelay(unsigned long usecs)98 static inline void udelay(unsigned long usecs) 99 { 100 inv_sleep((usecs + 999) / 1000); 101 } 102 #else 103 #include <linux/delay.h> 104 #endif 105 106 #ifdef __cplusplus 107 } 108 #endif 109 #endif /* _MLOS_H */ 110