diff options
Diffstat (limited to 'bsps/powerpc/mvme5500/include/tm27.h')
-rw-r--r-- | bsps/powerpc/mvme5500/include/tm27.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/bsps/powerpc/mvme5500/include/tm27.h b/bsps/powerpc/mvme5500/include/tm27.h new file mode 100644 index 0000000000..2a80618cfb --- /dev/null +++ b/bsps/powerpc/mvme5500/include/tm27.h @@ -0,0 +1,66 @@ +/* + * @file + * @ingroup powerpc_mvme5500 + * @brief Implementations for interrupt mechanisms for Time Test 27 + */ + +/* + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#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> + +/* + * Stuff for Time Test 27 + */ + +#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 { \ + uint32_t _clicks = 1; \ + __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 |