Changeset e07b6868 in rtems for c/src/lib/libbsp/powerpc/shared/include/bsp.h

Timestamp:

01/03/00 14:14:37 (24 years ago)

Author:

Joel Sherrill <joel.sherrill@…>

Branches:

4.10, 4.11, 4.8, 4.9, 5, master

Children:

32f19fb3

Parents:

db941670

Message:

Added tm27 stuff.

File:

• c/src/lib/libbsp/powerpc/shared/include/bsp.h (modified) (1 diff)

c/src/lib/libbsp/powerpc/shared/include/bsp.h

@@ -56 +56 @@
 extern int BSP_disconnect_clock_handler (void);
 extern int BSP_connect_clock_handler (void);
+
+/*
+ *  TM27 stuff
+ */
+
+#if defined(MCP750) && defined(RTEMS_TM27)
+
+#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
+
+
 #endif