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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2004-09-29 17:25:02 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2004-09-29 17:25:02 +0000 |
commit | c774850d227c53c35d7c99ecb390e2f02113b0fb (patch) | |
tree | 5a40759b80ec1b595aa8f76c1855baaf1347921b /c/src/lib/libbsp/i960/rxgen960/timer/timer.c | |
parent | 2004-09-27 Greg Menke <gregory.menke@gsfc.nasa.gov> (diff) | |
download | rtems-c774850d227c53c35d7c99ecb390e2f02113b0fb.tar.bz2 |
2004-09-29 Joel Sherrill <joel@OARcorp.com>
* .cvsignore, ChangeLog, Makefile.am, acinclude.m4, configure.ac,
cvme961/.cvsignore, cvme961/ChangeLog, cvme961/Makefile.am,
cvme961/bsp_specs, cvme961/configure.ac, cvme961/times,
cvme961/clock/ckinit.c, cvme961/console/console.c,
cvme961/include/.cvsignore, cvme961/include/bsp.h,
cvme961/include/tm27.h, cvme961/shmsupp/addrconv.c,
cvme961/shmsupp/getcfg.c, cvme961/shmsupp/lock.c,
cvme961/shmsupp/mpisr.c, cvme961/start/start.S,
cvme961/startup/bspclean.c, cvme961/startup/bspstart.c,
cvme961/startup/exit.c, cvme961/startup/linkcmds,
cvme961/startup/setvec.c, cvme961/timer/timer.c,
cvme961/timer/timerisr.S, i960sim/.cvsignore, i960sim/ChangeLog,
i960sim/Makefile.am, i960sim/bsp_specs, i960sim/configure.ac,
i960sim/clock/clockdrv.c, i960sim/console/console-io.c,
i960sim/console/mon-syscalls.S, i960sim/include/.cvsignore,
i960sim/include/bsp.h, i960sim/include/tm27.h, i960sim/start/start.c,
i960sim/startup/bspstart.c, i960sim/startup/linkcmds,
rxgen960/.cvsignore, rxgen960/ChangeLog, rxgen960/Makefile.am,
rxgen960/README, rxgen960/bsp_specs, rxgen960/configure.ac,
rxgen960/clock/ckinit.c, rxgen960/console/concntl.h,
rxgen960/console/console.c, rxgen960/console/serial.c,
rxgen960/console/serial.h, rxgen960/include/.cvsignore,
rxgen960/include/bsp.h, rxgen960/include/rxgen960_config.h,
rxgen960/include/tm27.h, rxgen960/start/rxgen_romld.S,
rxgen960/startup/asmfault.S, rxgen960/startup/asmfault.h,
rxgen960/startup/asmstub.S, rxgen960/startup/asmstub.h,
rxgen960/startup/bspstart.c, rxgen960/startup/cntrltbl.c,
rxgen960/startup/cntrltbl.h, rxgen960/startup/dram.ld,
rxgen960/startup/exit.c, rxgen960/startup/fault.c,
rxgen960/startup/fault.h, rxgen960/startup/faultret.h,
rxgen960/startup/flttbl.c, rxgen960/startup/flttbl.h,
rxgen960/startup/frmstr.c, rxgen960/startup/frmstr.h,
rxgen960/startup/i960.h, rxgen960/startup/ihandler.S,
rxgen960/startup/ihandler.h, rxgen960/startup/intrtbl.c,
rxgen960/startup/intrtbl.h, rxgen960/startup/kkprintf.c,
rxgen960/startup/linkcmds, rxgen960/startup/linkcmds.real,
rxgen960/startup/main.h, rxgen960/startup/memchnl.h,
rxgen960/startup/nmi.c, rxgen960/startup/nulsystbl.c,
rxgen960/startup/pmc901_memmap.h, rxgen960/startup/prcb.c,
rxgen960/startup/prcb.h, rxgen960/startup/rom.ld,
rxgen960/startup/rom_cntrltbl.c, rxgen960/startup/rom_ibr.c,
rxgen960/startup/rom_ibr.h, rxgen960/startup/rom_prcb.c,
rxgen960/startup/rommon.h, rxgen960/startup/sctns.c,
rxgen960/startup/sctns.h, rxgen960/startup/setvec.c,
rxgen960/startup/systbl.c, rxgen960/startup/systbl.h,
rxgen960/startup/time.h, rxgen960/timer/timer.c,
rxgen960/timer/timerisr.S: Removed.
Diffstat (limited to 'c/src/lib/libbsp/i960/rxgen960/timer/timer.c')
-rw-r--r-- | c/src/lib/libbsp/i960/rxgen960/timer/timer.c | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/c/src/lib/libbsp/i960/rxgen960/timer/timer.c b/c/src/lib/libbsp/i960/rxgen960/timer/timer.c deleted file mode 100644 index 1b99f73dcb..0000000000 --- a/c/src/lib/libbsp/i960/rxgen960/timer/timer.c +++ /dev/null @@ -1,125 +0,0 @@ -/* Timer_init() - * - * This routine initializes the Z8536 timer on the SQSIO4 SQUALL - * board for the CVME961 board. The timer is setup to provide a - * tick every 1 millisecond. - * - * Input parameters: NONE - * - * Output parameters: NONE - * - * NOTE: This routine will not work if the optimizer is enabled - * for most compilers. The multiple writes to the Z8536 - * will be optimized away. - * - * It is important that the timer start/stop overhead be - * determined when porting or modifying this code. - * - * COPYRIGHT (c) 1989-1997. - * On-Line Applications Research Corporation (OAR). - * - * The license and distribution terms for this file may in - * the file LICENSE in this distribution or at - * http://www.rtems.com/license/LICENSE. - * - * $Id$ - */ - -#include <bsp.h> -#include <stdlib.h> -#include <rtems/libio.h> - -#define TIMER_VECTOR 34 - -int Ttimer_val; -rtems_boolean Timer_driver_Find_average_overhead = 0; - -void flush_reg(); -rtems_isr timerisr(); - -void Timer_initialize() -{ - volatile unsigned int *tmr1 = (unsigned int *) TMR1_ADDR; - volatile unsigned int *trr1 = (unsigned int *) TRR1_ADDR; - volatile unsigned int *tcr1 = (unsigned int *) TCR1_ADDR; - volatile unsigned int *imsk = (unsigned int *) IMSK_ADDR; - volatile unsigned int *icon = (unsigned int *) ICON_ADDR; - volatile unsigned int *ipnd = (unsigned int *) IPND_ADDR; - volatile unsigned int *imap2 = (unsigned int *) IMAP2_ADDR; - - #define BUS_CLOCK_1 0 - #define TMR_WRITE_CNTL 8 - #define TMR_AUTO_RELOAD 4 - #define TMR_ENABLE 2 - #define TMR_TERM_CNT_STAT 1 - - *tmr1 = BUS_CLOCK_1 | TMR_AUTO_RELOAD; - *icon = 0x6000; - - set_vector( (((unsigned int) timerisr) | 0x2), TIMER_VECTOR, 1 ); - - *imap2 = (*imap2 & 0xff0fffff) | (((TIMER_VECTOR >> 4) & 0xf) << 20); - - /* initialize the i960RP timer 1 here */ - - /* set the timer countdown */ - *trr1 = 33 * BSP_Configuration.microseconds_per_tick; - *tcr1 = 33 * BSP_Configuration.microseconds_per_tick; - - *ipnd &= ~(1<<13); - *imsk |= (1 << 13); - Ttimer_val = 0; - *tmr1 = BUS_CLOCK_1 | TMR_AUTO_RELOAD | TMR_ENABLE; - -} - -rtems_isr timerisr( - rtems_vector_number vector -) -{ - /* enable_tracing(); */ - Ttimer_val++; - i960_clear_intr( 13 ); -} - -#define AVG_OVERHEAD 4 /* It typically takes 5.5 microseconds */ - /* (11 countdowns) to start/stop the timer. */ -#define LEAST_VALID 5 /* Don't trust a value lower than this */ - -int Read_timer() -{ - volatile unsigned int *tcr1 = (unsigned int *) TCR1_ADDR; - volatile unsigned int *trr1 = (unsigned int *) TRR1_ADDR; - uint32_t remaining, total; - - /* this routine is supposed to count in 1/2 uSec units */ - /* pretty funny when using a 33MHz clock for the counter */ - remaining = *tcr1; - remaining = *trr1 - remaining; - total = (2 * ((Ttimer_val * *trr1) + remaining)) / 33; -/* - putnum(remaining); - console_sps_putc(':'); - putnum(total); -*/ - - if ( Timer_driver_Find_average_overhead == 1 ) - return total; /* in one-half microsecond units */ - else { - if ( total < LEAST_VALID ) - return 0; /* below timer resolution */ - return (total-AVG_OVERHEAD) >> 1; - } -} - -rtems_status_code Empty_function( void ) -{ - return RTEMS_SUCCESSFUL; -} - -void Set_find_average_overhead( - rtems_boolean find_flag -) -{ - Timer_driver_Find_average_overhead = find_flag; -} |