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/*

 *  bsp.h  -- contain BSP API definition.

 *

 *  Copyright (C) 1999 Eric Valette. valette@crf.canon.fr

 *

 *  The license and distribution terms for this file may be

 *  found in found in the file LICENSE in this distribution or at

 *  http://www.OARcorp.com/rtems/license.html.

 *

 * $Id: bsp.h,v 1.2 2001-09-27 12:01:06 chris Exp $

 */

#ifndef LIBBSP_POWERPC_MOTOROLA_SHARED_BSP_H

#define LIBBSP_POWERPC_MOTOROLA_SHARED_BSP_H

#include <rtems.h>

#include <console.h>

#include <libcpu/io.h>

#include <clockdrv.h>

#include <bsp/vectors.h>

/*

 *  confdefs.h overrides for this BSP:

 *   - termios serial ports (defaults to 1)

 *   - Interrupt stack space is not minimum if defined.

 */

/* #define CONFIGURE_NUMBER_OF_TERMIOS_PORTS 2 */

#define CONFIGURE_INTERRUPT_STACK_MEMORY  (16 * 1024)

#ifndef ASM

#define outport_byte(port,value) outb(value,port)

#define outport_word(port,value) outw(value,port)

#define outport_long(port,value) outl(value,port)

#define inport_byte(port,value) (value = inb(port))

#define inport_word(port,value) (value = inw(port))

#define inport_long(port,value) (value = inl(port))

/*

 * Vital Board data Start using DATA RESIDUAL

 */

/*

 * Total memory using RESIDUAL DATA

 */

extern unsigned int BSP_mem_size;

/*

 * PCI Bus Frequency

 */

extern unsigned int BSP_bus_frequency;

/*

 * processor clock frequency

 */

extern unsigned int BSP_processor_frequency;

/*

 * Time base divisior (how many tick for 1 second).

 */

extern unsigned int BSP_time_base_divisor;

#define BSP_Convert_decrementer( _value ) \

  ((unsigned long long) ((((unsigned long long)BSP_time_base_divisor) * 1000000ULL) /((unsigned long long) BSP_bus_frequency)) * ((unsigned long long) (_value)))

extern rtems_configuration_table  BSP_Configuration;

extern void BSP_panic(char *s);

extern void rtemsReboot(void);

extern int printk(const char *, ...) __attribute__((format(printf, 1, 2)));

extern int BSP_disconnect_clock_handler (void);

extern int BSP_connect_clock_handler (void);

/*

 *  TM27 stuff

 */

#if defined(USE_ENHANCED_INTR_API) && defined(RTEMS_TM27)

#include <bsp/irq.h>

#define MUST_WAIT_FOR_INTERRUPT 1

void nullFunc() {}

static rtems_irq_connect_data clockIrqData = {BSP_DECREMENTER,

                                              0,

                                              (rtems_irq_enable)nullFunc,

                                              (rtems_irq_disable)nullFunc,

                                              (rtems_irq_is_enabled) nullFunc};

void Install_tm27_vector(void (*_handler)())

{

  clockIrqData.hdl = _handler;

  if (!BSP_install_rtems_irq_handler (&clockIrqData)) {

        printk("Error installing clock interrupt handler!\n");

        rtems_fatal_error_occurred(1);

  }

}

#define Cause_tm27_intr()  \

  do { \

    unsigned32 _clicks = 8; \

    asm volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \

  } while (0)

#define Clear_tm27_intr() \

  do { \

    unsigned32 _clicks = 0xffffffff; \

    asm volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \

  } while (0)

#define Lower_tm27_intr() \

  do { \

    unsigned32 _msr = 0; \

    _ISR_Set_level( 0 ); \

    asm volatile( "mfmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \

    _msr |=  0x8002; \

    asm volatile( "mtmsr %0 ;" : "=r" (_msr) : "r" (_msr) ); \

  } while (0)

#endif

#endif

#endif