diff options
| author | Joel Sherrill <joel.sherrill@OARcorp.com> | 2005-05-20 19:22:26 +0000 |
|---|---|---|
| committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 2005-05-20 19:22:26 +0000 |
| commit | 266a5c92a8f021b301347c3b20ef176599b9e147 (patch) | |
| tree | 075d0583c22c8903d88317b60adb4c2520d3790f | |
| parent | 2005-05-20 Sergei Organov <osv@topconrd.ru> (diff) | |
| download | rtems-266a5c92a8f021b301347c3b20ef176599b9e147.tar.bz2 | |
2005-05-20 Jennifer Averett <jennifer@OARcorp.com>
PR 702/bsps
* include/tm27.h: Add better tm27.h support. Uses decrementer register
interrupt -- copied from psim.
| -rw-r--r-- | c/src/lib/libbsp/powerpc/mvme5500/ChangeLog | 6 | ||||
| -rw-r--r-- | c/src/lib/libbsp/powerpc/mvme5500/include/tm27.h | 42 |
2 files changed, 43 insertions, 5 deletions
diff --git a/c/src/lib/libbsp/powerpc/mvme5500/ChangeLog b/c/src/lib/libbsp/powerpc/mvme5500/ChangeLog index 63ba488027..743e0379c6 100644 --- a/c/src/lib/libbsp/powerpc/mvme5500/ChangeLog +++ b/c/src/lib/libbsp/powerpc/mvme5500/ChangeLog @@ -1,3 +1,9 @@ +2005-05-20 Jennifer Averett <jennifer@OARcorp.com> + + PR 702/bsps + * include/tm27.h: Add better tm27.h support. Uses decrementer register + interrupt -- copied from psim. + 2005-05-17 Jennifer Averett <jennifer.averett@oarcorp.com> * irq/GT64260Int.c, irq/irq.c, irq/irq.h: Modified to use rtems/irq.h. diff --git a/c/src/lib/libbsp/powerpc/mvme5500/include/tm27.h b/c/src/lib/libbsp/powerpc/mvme5500/include/tm27.h index d4165949d9..f132fce9bb 100644 --- a/c/src/lib/libbsp/powerpc/mvme5500/include/tm27.h +++ b/c/src/lib/libbsp/powerpc/mvme5500/include/tm27.h @@ -15,18 +15,50 @@ #ifndef __tm27_h #define __tm27_h +#include <bsp/irq.h> + /* * Stuff for Time Test 27 */ -#define MUST_WAIT_FOR_INTERRUPT 0 +#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 Install_tm27_vector( handler ) /* empty */ +#define Cause_tm27_intr() \ + do { \ + uint32_t _clicks = 1; \ + asm volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \ + } while (0) -#define Cause_tm27_intr() /* empty */ -#define Clear_tm27_intr() /* empty */ +#define Clear_tm27_intr() \ + do { \ + uint32_t _clicks = 0xffffffff; \ + asm volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \ + } while (0) -#define Lower_tm27_intr() /* empty */ +#define Lower_tm27_intr() \ + do { \ + uint32_t _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 |