src/add-ons/kernel/drivers/network/usb_ecm/BeOSCompatibility.h

   1 /*
   2         Driver for USB Ethernet Control Model devices
   3         Copyright (C) 2008 Michael Lotz <mmlr@mlotz.ch>
   4         Distributed under the terms of the MIT license.
   5 */
   6 #ifndef HAIKU_TARGET_PLATFORM_HAIKU
   7 #ifndef _BEOS_COMPATIBILITY_H_
   8 #define _BEOS_COMPATIBILITY_H_
   9
  10 #include <OS.h>
  11
  12 #define USB_ENDPOINT_ATTR_CONTROL               0x00
  13 #define USB_ENDPOINT_ATTR_ISOCHRONOUS   0x01
  14 #define USB_ENDPOINT_ATTR_BULK                  0x02
  15 #define USB_ENDPOINT_ATTR_INTERRUPT             0x03
  16 #define USB_ENDPOINT_ATTR_MASK                  0x03
  17
  18 #define USB_ENDPOINT_ADDR_DIR_IN                0x80
  19 #define USB_ENDPOINT_ADDR_DIR_OUT               0x00
  20
  21 typedef struct mutex {
  22         sem_id  sem;
  23         int32   count;
  24 } mutex;
  25
  26
  27 static inline void
  28 mutex_init(mutex *lock, const char *name)
  29 {
  30         lock->sem = create_sem(0, name);
  31         lock->count = 0;
  32 }
  33
  34
  35 static inline void
  36 mutex_destroy(mutex *lock)
  37 {
  38         delete_sem(lock->sem);
  39 }
  40
  41
  42 static inline status_t
  43 mutex_lock(mutex *lock)
  44 {
  45         if (atomic_add(&lock->count, -1) < 0)
  46                 return acquire_sem(lock->sem);
  47         return B_OK;
  48 }
  49
  50
  51 static inline void
  52 mutex_unlock(mutex *lock)
  53 {
  54         if (atomic_add(&lock->count, 1) < -1)
  55                 release_sem(lock->sem);
  56 }
  57
  58 #endif /* !HAIKU_TARGET_PLATFORM_HAIKU */
  59 #endif /* _BEOS_COMPATIBILITY_H_ */