mb-hw.c File Reference

#include <os_config.h>
#include <sys/process.h>
#include <config/config_param.h>
#include <config/config_cparam.h>
#include <xil_types.h>
#include <xstatus.h>
#include <xparameters.h>
#include <sys/decls.h>
#include <microblaze_exceptions_g.h>
#include <sys/init.h>
#include <mb_interface.h>
#include <stdio.h>

Functions
void	pit_initialize (unsigned int interval)
void	pit_reset (void)
void	hw_init (void)
void	xmk_enter_kernel (void)
void	xmk_leave_kernel (void)
Variables
pid_t	current_pid
	Kernel Stack pointer.
char	timer_need_refresh
	Ticks since kernel startup.
unsigned char	sched_partial_tick
	Do we need a reset?

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Detailed Description

Microblaze hardware specific initialization

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Function Documentation

void hw_init (  void   )

Microblaze hardware specific initialization If an interrupt controller is present register interrupt controller handler as the main interrupt handler. Register timer with interrupt controller handler Else, Register timer interrupt handler as the main interrupt handler Configure PIT is timer is PIT. Parameters: none  Returns: nothing Note: none

void pit_initialize (  unsigned int  interval  )

Initialize the PIT timer in the system Parameters: interval  is the interval to interrupt the system at. Returns: nothing Note: none

void pit_reset (  void   )

Enable and start PIT timer with configured PIT interval loaded to the PIT counter Parameters: none  Returns: nothing Note: none

void xmk_enter_kernel (  void   )  [inline]

Lock kernel by turning off ALL system interrupts Returns: Nothing Note: Locks kernel against ALL interrupts.

void xmk_leave_kernel (  void   )  [inline]

Unlock kernel by turning on system timer interrupts Returns: Nothing Note: Unlocks kernel with respect to ALL interrupts

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