diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/ep1a/include/tm27.h')
-rw-r--r-- | c/src/lib/libbsp/powerpc/ep1a/include/tm27.h | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/powerpc/ep1a/include/tm27.h b/c/src/lib/libbsp/powerpc/ep1a/include/tm27.h new file mode 100644 index 0000000000..c62810edda --- /dev/null +++ b/c/src/lib/libbsp/powerpc/ep1a/include/tm27.h @@ -0,0 +1,60 @@ +/* + * COPYRIGHT (c) 1989-1999. + * On-Line Applications Research Corporation (OAR). + * + * 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 _RTEMS_TMTEST27 +#error "This is an RTEMS internal file you must not include directly." +#endif + +#ifndef __tm27_h +#define __tm27_h + +#include <bsp/irq.h> + +#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 Cause_tm27_intr() \ + do { \ + unsigned32 _clicks = 8; \ + asm volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \ + } while (0) + + +#define Clear_tm27_intr() \ + do { \ + unsigned32 _clicks = 0xffffffff; \ + asm volatile( "mtdec %0" : "=r" ((_clicks)) : "r" ((_clicks)) ); \ + } while (0) + +#define Lower_tm27_intr() \ + do { \ + unsigned32 _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 |