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      1 /*
      2  $License:
      3     Copyright (C) 2014 InvenSense Corporation, All Rights Reserved.
      4  $
      5  */
      6 
      7 #ifndef _MLOS_H
      8 #define _MLOS_H
      9 
     10 #ifndef __KERNEL__
     11 #include <stdio.h>
     12 #endif
     13 #include <pthread.h>
     14 
     15 #include "mltypes.h"
     16 
     17 #ifdef __cplusplus
     18 extern "C" {
     19 #endif
     20 
     21 #if defined(LINUX) || defined(__KERNEL__)
     22 typedef pthread_mutex_t* HANDLE;
     23 #endif
     24 
     25 	/* ------------ */
     26 	/* - Defines. - */
     27 	/* ------------ */
     28 
     29 	/* - MLOSCreateFile defines. - */
     30 
     31 #define MLOS_GENERIC_READ         ((unsigned int)0x80000000)
     32 #define MLOS_GENERIC_WRITE        ((unsigned int)0x40000000)
     33 #define MLOS_FILE_SHARE_READ      ((unsigned int)0x00000001)
     34 #define MLOS_FILE_SHARE_WRITE     ((unsigned int)0x00000002)
     35 #define MLOS_OPEN_EXISTING        ((unsigned int)0x00000003)
     36 
     37 	/* ---------- */
     38 	/* - Enums. - */
     39 	/* ---------- */
     40 
     41 	/* --------------- */
     42 	/* - Structures. - */
     43 	/* --------------- */
     44 
     45 	/* --------------------- */
     46 	/* - Function p-types. - */
     47 	/* --------------------- */
     48 
     49 #ifndef __KERNEL__
     50 #include <string.h>
     51 	void *inv_malloc(unsigned int numBytes);
     52 	inv_error_t inv_free(void *ptr);
     53 	inv_error_t inv_create_mutex(HANDLE *mutex);
     54 	inv_error_t inv_lock_mutex(HANDLE mutex);
     55 	inv_error_t inv_unlock_mutex(HANDLE mutex);
     56 	FILE *inv_fopen(char *filename);
     57 	void inv_fclose(FILE *fp);
     58 
     59 	inv_error_t inv_destroy_mutex(HANDLE handle);
     60 
     61 	void inv_sleep(int mSecs);
     62 	unsigned long inv_get_tick_count(void);
     63 
     64 	/* Kernel implmentations */
     65 #define GFP_KERNEL (0x70)
     66 	static inline void *kmalloc(size_t size,
     67 				    unsigned int gfp_flags)
     68 	{
     69         (void)gfp_flags;
     70 		return inv_malloc((unsigned int)size);
     71 	}
     72 	static inline void *kzalloc(size_t size, unsigned int gfp_flags)
     73 	{
     74 		void *tmp = inv_malloc((unsigned int)size);
     75         (void)gfp_flags;
     76 		if (tmp)
     77 			memset(tmp, 0, size);
     78 		return tmp;
     79 	}
     80 	static inline void kfree(void *ptr)
     81 	{
     82 		inv_free(ptr);
     83 	}
     84 	static inline void msleep(long msecs)
     85 	{
     86 		inv_sleep(msecs);
     87 	}
     88 	static inline void udelay(unsigned long usecs)
     89 	{
     90 		inv_sleep((usecs + 999) / 1000);
     91 	}
     92 #else
     93 #include <linux/delay.h>
     94 #endif
     95 
     96 #ifdef __cplusplus
     97 }
     98 #endif
     99 #endif				/* _MLOS_H */
    100