Timer re-worked!

[lunaix-os.git] / lunaix-os / includes / lunaix / common.h

diff --git a/lunaix-os/includes/lunaix/common.h b/lunaix-os/includes/lunaix/common.h
new file mode 100644 (file)
index 0000000..d9ffeae
--- /dev/null
+++ b/lunaix-os/includes/lunaix/common.h
@@ -0,0 +1,31 @@
+#ifndef __LUNAIX_CONSTANTS_H
+#define __LUNAIX_CONSTANTS_H
+
+#include <stddef.h>
+
+#define K_STACK_SIZE            (64 << 10)
+#define K_STACK_START           ((0xFFBFFFFFU - K_STACK_SIZE) + 1)
+#define HIGHER_HLF_BASE         0xC0000000UL
+#define MEM_1MB                 0x100000UL
+
+#define VGA_BUFFER_VADDR        0xB0000000UL
+#define VGA_BUFFER_PADDR        0xB8000UL
+#define VGA_BUFFER_SIZE         4096
+
+#define SYS_TIMER_FREQUENCY_HZ  2048
+
+
+// From Linux kernel v2.6.0 <kernel.h:194>
+/**
+ * container_of - cast a member of a structure out to the containing structure
+ *
+ * @ptr:       the pointer to the member.
+ * @type:      the type of the container struct this is embedded in.
+ * @member:    the name of the member within the struct.
+ *
+ */
+#define container_of(ptr, type, member) ({                                 \
+        const typeof( ((type *)0)->member ) *__mptr = (ptr);   \
+        (type *)( (char *)__mptr - offsetof(type,member) );})
+
+#endif /* __LUNAIX_CONSTANTS_H */