diff options
author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2007-09-12 15:23:49 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2007-09-12 15:23:49 +0000 |
commit | 3d7fa72bc2ba2f723e6bcf84180637fb8c84f713 (patch) | |
tree | 4b542c612d352d8924e5ca59a921623d937ed754 /c/src/lib/libcpu/sh/sh7032/timer/timer.c | |
parent | 2007-09-12 Joel Sherrill <joel.sherrill@OARcorp.com> (diff) | |
download | rtems-3d7fa72bc2ba2f723e6bcf84180637fb8c84f713.tar.bz2 |
2007-09-12 Joel Sherrill <joel.sherrill@OARcorp.com>
PR 1257/bsps
* sh7032/score/cpu_asm.c, sh7032/timer/timer.c, sh7045/score/cpu_asm.c,
sh7045/timer/timer.c, sh7750/score/cpu_asm.c, sh7750/timer/timer.c:
Code outside of cpukit should use the public API for
rtems_interrupt_disable/rtems_interrupt_enable. By bypassing the
public API and directly accessing _CPU_ISR_Disable and
_CPU_ISR_Enable, they were bypassing the compiler memory barrier
directive which could lead to problems. This patch also changes the
type of the variable passed into these routines and addresses minor
style issues.
Diffstat (limited to '')
-rw-r--r-- | c/src/lib/libcpu/sh/sh7032/timer/timer.c | 54 |
1 files changed, 27 insertions, 27 deletions
diff --git a/c/src/lib/libcpu/sh/sh7032/timer/timer.c b/c/src/lib/libcpu/sh/sh7032/timer/timer.c index 0a757a32a1..6b7a8ba335 100644 --- a/c/src/lib/libcpu/sh/sh7032/timer/timer.c +++ b/c/src/lib/libcpu/sh/sh7032/timer/timer.c @@ -72,10 +72,10 @@ static uint32_t Timer_HZ ; void Timer_initialize( void ) { - uint8_t temp8; - uint16_t temp16; - uint32_t level; - rtems_isr *ignored; + uint8_t temp8; + uint16_t temp16; + rtems_interrupt_level level; + rtems_isr *ignored; Timer_HZ = rtems_cpu_configuration_get_clicks_per_second() / CLOCK_SCALE ; @@ -85,51 +85,51 @@ void Timer_initialize( void ) */ Timer_interrupts /* .i */ = 0; - _CPU_ISR_Disable( level); + rtems_interrupt_disable( level ); /* * Somehow start the timer */ /* stop Timer 1 */ - temp8 = read8( ITU_TSTR) & ITU1_STARTMASK; - write8( temp8, ITU_TSTR); + temp8 = read8(ITU_TSTR) & ITU1_STARTMASK; + write8( temp8, ITU_TSTR ); /* initialize counter 1 */ - write16( 0, ITU_TCNT1); + write16( 0, ITU_TCNT1 ); /* Timer 1 is independent of other timers */ - temp8 = read8( ITU_TSNC) & ITU1_SYNCMASK; - write8( temp8, ITU_TSNC); + temp8 = read8(ITU_TSNC) & ITU1_SYNCMASK; + write8( temp8, ITU_TSNC ); /* Timer 1, normal mode */ - temp8 = read8( ITU_TMDR) & ITU1_MODEMASK; - write8( temp8, ITU_TMDR); + temp8 = read8(ITU_TMDR) & ITU1_MODEMASK; + write8( temp8, ITU_TMDR ); /* Use a Phi/X counter */ - write8( ITU1_TCRMASK, ITU_TCR1); + write8( ITU1_TCRMASK, ITU_TCR1 ); /* gra and grb are not used */ - write8( ITU1_TIORMASK, ITU_TIOR1); + write8( ITU1_TIORMASK, ITU_TIOR1 ); /* reset all status flags */ - temp8 = read8( ITU_TSR1) & ITU1_STAT_MASK; - write8( temp8, ITU_TSR1); + temp8 = read8(ITU_TSR1) & ITU1_STAT_MASK; + write8( temp8, ITU_TSR1 ); /* enable overflow interrupt */ - write8( ITU1_TIERMASK, ITU_TIER1); + write8( ITU1_TIERMASK, ITU_TIER1 ); /* set interrupt priority */ - temp16 = read16( INTC_IPRC) & IPRC_ITU1_MASK; + temp16 = read16(INTC_IPRC) & IPRC_ITU1_MASK; temp16 |= ITU1_PRIO; - write16( temp16, INTC_IPRC); + write16( temp16, INTC_IPRC ); /* initialize ISR */ _CPU_ISR_install_raw_handler( ITU1_VECTOR, timerisr, &ignored ); - _CPU_ISR_Enable( level); + rtems_interrupt_enable( level ); /* start timer 1 */ - temp8 = read8( ITU_TSTR) | ~ITU1_STARTMASK; - write8( temp8, ITU_TSTR); + temp8 = read8(ITU_TSTR) | ~ITU1_STARTMASK; + write8( temp8, ITU_TSTR ); } /* @@ -156,7 +156,7 @@ int Read_timer( void ) */ - cclicks = read16( ITU_TCNT1); /* XXX: read some HW here */ + cclicks = read16( ITU_TCNT1 ); /* XXX: read some HW here */ /* * Total is calculated by taking into account the number of timer overflow @@ -164,7 +164,7 @@ int Read_timer( void ) * interrupts. */ - total = cclicks + Timer_interrupts * 65536 ; + total = cclicks + Timer_interrupts * 65536; if ( Timer_driver_Find_average_overhead ) return total / CLOCK_SCALE; /* in XXX microsecond units */ @@ -175,7 +175,7 @@ int Read_timer( void ) /* * Somehow convert total into microseconds */ - return (total / CLOCK_SCALE - AVG_OVERHEAD) ; + return (total / CLOCK_SCALE - AVG_OVERHEAD); } } @@ -204,8 +204,8 @@ void timerisr( void ) uint8_t temp8; /* reset the flags of the status register */ - temp8 = read8( ITU_TSR1) & ITU1_STAT_MASK; - write8( temp8, ITU_TSR1); + temp8 = read8(ITU_TSR1) & ITU1_STAT_MASK; + write8( temp8, ITU_TSR1 ); Timer_interrupts += 1; } |