diff options
Diffstat (limited to 'c/src/lib/libbsp/m68k/dmv152/clock/ckinit.c')
-rw-r--r-- | c/src/lib/libbsp/m68k/dmv152/clock/ckinit.c | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/c/src/lib/libbsp/m68k/dmv152/clock/ckinit.c b/c/src/lib/libbsp/m68k/dmv152/clock/ckinit.c deleted file mode 100644 index d5f0f5e023..0000000000 --- a/c/src/lib/libbsp/m68k/dmv152/clock/ckinit.c +++ /dev/null @@ -1,101 +0,0 @@ -/* Clock_init() - * - * This routine initializes the Z80386 1 on the MVME136 board. - * The tick frequency is 1 millisecond. - * - * Input parameters: NONE - * - * Output parameters: NONE - * - * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. - * On-Line Applications Research Corporation (OAR). - * All rights assigned to U.S. Government, 1994. - * - * This material may be reproduced by or for the U.S. Government pursuant - * to the copyright license under the clause at DFARS 252.227-7013. This - * notice must appear in all copies of this file and its derivatives. - * - * $Id$ - */ - -#include <stdlib.h> - -#include <rtems.h> -#include <bsp.h> -#include <clockdrv.h> - -rtems_unsigned32 Clock_isrs; /* ISRs until next tick */ -volatile rtems_unsigned32 Clock_driver_ticks; - /* ticks since initialization */ -rtems_isr_entry Old_ticker; - -rtems_device_driver Clock_initialize( - rtems_device_major_number major, - rtems_device_minor_number minor, - void *pargp, - rtems_id tid, - rtems_unsigned32 *rval -) -{ - Install_clock( Clock_isr ); -} - -void ReInstall_clock( - rtems_isr_entry clock_isr -) -{ - rtems_unsigned32 isrlevel = 0 ; - - rtems_interrupt_disable( isrlevel ); - (void) set_vector( clock_isr, TIMER_VECTOR, 1 ); - rtems_interrupt_enable( isrlevel ); -} - -void Install_clock( - rtems_isr_entry clock_isr -) -{ - rtems_unsigned8 data; - - Clock_driver_ticks = 0; - Clock_isrs = BSP_Configuration.microseconds_per_tick / 1000; - - if ( BSP_Configuration.ticks_per_timeslice ) { - Old_ticker = (rtems_isr_entry) set_vector( clock_isr, TIMER_VECTOR, 1 ); - - Z8x36_WRITE( TIMER, MASTER_CFG, 0xd4 ); - Z8x36_READ ( TIMER, MASTER_INTR, data ); - Z8x36_WRITE( TIMER, MASTER_INTR, (data & 0x7E) ); - Z8x36_WRITE( TIMER, CT1_TIME_CONST_MSB, 0x04 ); - Z8x36_WRITE( TIMER, CT1_TIME_CONST_LSB, 0xCE ); - Z8x36_WRITE( TIMER, CT1_MODE_SPEC, 0x83 ); - Z8x36_WRITE( TIMER, CNT_TMR_VECTOR, TIMER_VECTOR ); - Z8x36_WRITE( TIMER, CT1_CMD_STATUS, 0x20 ); - Z8x36_READ ( TIMER, MASTER_INTR, data ); - Z8x36_WRITE( TIMER, MASTER_INTR, (data & 0xDA) | 0x80 ); - - /* - * ACC_IC54 - interrupt 5 will be vectored and mapped to level 6 - */ - - data = (*(rtems_unsigned8 *)0x0D00000B); - (*(rtems_unsigned8 *)0x0D00000B) = (data & 0x7F) | 0x60; - - Z8x36_WRITE( TIMER, CT1_CMD_STATUS, 0xC6 ); - - atexit( Clock_exit ); - } -} - -void Clock_exit( void ) -{ - rtems_unsigned8 data; - - if ( BSP_Configuration.ticks_per_timeslice ) { - - Z8x36_READ ( TIMER, MASTER_INTR, data ); - Z8x36_WRITE( TIMER, MASTER_INTR, (data & 0x01) ); - /* do not restore old vector */ - - } -} |