diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/ppcn_60x/include/tm27.h')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/ppcn_60x/include/tm27.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/ppcn_60x/include/tm27.h b/c/src/lib/libbsp/powerpc/ppcn_60x/include/tm27.h new file mode 100644 index 0000000000..3fbf1ad497 --- /dev/null +++ b/c/src/lib/libbsp/powerpc/ppcn_60x/include/tm27.h @@ -0,0 +1,48 @@ +/* + * tm27.h + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.com/license/LICENSE. + * + * $Id$ + */ + +#ifndef _TMTEST27 +#error "This is an RTEMS internal file you must not include directly." +#endif + +#ifndef __tm27_h +#define __tm27_h + +/* + * Stuff for Time Test 27 + */ + +#define MUST_WAIT_FOR_INTERRUPT 1 + +#define Install_tm27_vector( _handler ) \ + set_vector( (_handler), PPC_IRQ_DECREMENTER, 1 ) + +#define Cause_tm27_intr() \ + do { \ + uint32_t _clicks = 8; \ + asm volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \ + } while (0) + +#define Clear_tm27_intr() \ + do { \ + uint32_t _clicks = 0xffffffff; \ + asm volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \ + } while (0) + +#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 |