AxisDriver.h

Go to the documentation of this file.

 
#ifndef __AXIS_DRIVER_H__
#define __AXIS_DRIVER_H__
#include "DmaDriver.h"
 
#define AXIS_Read_Ack 0x2001  // NOLINT
 
#define AXIS_Write_ReqMissed 0x2002  // NOLINT
 
// Only define the following if not compiling for kernel space
#ifndef DMA_IN_KERNEL
 
static inline uint32_t axisSetFlags(uint32_t fuser, uint32_t luser, uint32_t cont) {
   uint32_t flags;
 
   // Set flags based on input parameters, ensuring each is in its correct position
   flags  = fuser & 0xFF;             // First user-defined flag
   flags |= (luser << 8) & 0xFF00;    // Last user-defined flag
   flags |= (cont  << 16) & 0x10000;  // Continuation flag
 
   return flags;
}
 
static inline uint32_t axisGetFuser(uint32_t flags) {
   return flags & 0xFF;
}
 
static inline uint32_t axisGetLuser(uint32_t flags) {
   return (flags >> 8) & 0xFF;
}
 
static inline uint32_t axisGetCont(uint32_t flags) {
   return (flags >> 16) & 0x1;
}
 
static inline void axisReadAck(int32_t fd) {
   ioctl(fd, AXIS_Read_Ack, 0);
}
 
static inline void axisWriteReqMissed(int32_t fd) {
   ioctl(fd, AXIS_Write_ReqMissed, 0);
}
 
#endif  // !DMA_IN_KERNEL
#endif  // __AXIS_DRIVER_H__