From 0dd1d44582dd2b39a791aa60f76358ff9bba8cd8 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Tue, 11 Jan 2000 17:34:20 +0000 Subject: Removed old hack of using Configuration Table entry ticks_per_timeslice being set to 0 to indicate that there should be no Clock Tick. This was used by the Timing Tests to avoid clock tick overhead perturbing execution times. Now the Timing Tests simply leave the Clock Tick Driver out of the Device Driver Table. --- c/src/lib/libbsp/m68k/efi332/clock/ckinit.c | 31 +++++++++++------------------ 1 file changed, 12 insertions(+), 19 deletions(-) (limited to 'c/src/lib/libbsp/m68k/efi332/clock') diff --git a/c/src/lib/libbsp/m68k/efi332/clock/ckinit.c b/c/src/lib/libbsp/m68k/efi332/clock/ckinit.c index fbef7982f1..6aa051895b 100644 --- a/c/src/lib/libbsp/m68k/efi332/clock/ckinit.c +++ b/c/src/lib/libbsp/m68k/efi332/clock/ckinit.c @@ -57,31 +57,24 @@ void Install_clock( 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, CLOCK_VECTOR, 1 ); + Old_ticker = (rtems_isr_entry) set_vector( clock_isr, CLOCK_VECTOR, 1 ); - /* enable 1mS interrupts */ - *PITR = (unsigned short int)( SAM(0x09,0,PITM) );/* load counter */ - *PICR = (unsigned short int) /* enable interrupt */ - ( SAM(ISRL_PIT,8,PIRQL) | SAM(CLOCK_VECTOR,0,PIV) ); - - atexit( Clock_exit ); - } + /* enable 1mS interrupts */ + *PITR = (unsigned short int)( SAM(0x09,0,PITM) );/* load counter */ + *PICR = (unsigned short int) /* enable interrupt */ + ( SAM(ISRL_PIT,8,PIRQL) | SAM(CLOCK_VECTOR,0,PIV) ); + + atexit( Clock_exit ); } void Clock_exit( void ) { + /* shutdown the periodic interrupt */ + *PICR = (unsigned short int) + ( SAM(0,8,PIRQL) | SAM(CLOCK_VECTOR,0,PIV) ); + /* ^^ zero disables interrupt */ - if ( BSP_Configuration.ticks_per_timeslice ) { - - /* shutdown the periodic interrupt */ - *PICR = (unsigned short int) - ( SAM(0,8,PIRQL) | SAM(CLOCK_VECTOR,0,PIV) ); - /* ^^ zero disables interrupt */ - - /* do not restore old vector */ - - } + /* do not restore old vector */ } rtems_device_driver Clock_initialize( -- cgit v1.2.3