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-rw-r--r--bsps/powerpc/mvme5500/include/tm27.h66
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