PATCH: header for pc9800 type detection
Alan Cox (alan@lxorguk.ukuu.org.uk)
Tue, 8 Apr 2003 01:32:29 +0100
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux-2.5.67/include/asm-i386/pc9800.h linux-2.5.67-ac1/include/asm-i386/pc9800.h
--- linux-2.5.67/include/asm-i386/pc9800.h 1970-01-01 01:00:00.000000000 +0100
+++ linux-2.5.67-ac1/include/asm-i386/pc9800.h 2003-04-06 23:35:15.000000000 +0100
@@ -0,0 +1,27 @@
+/*
+ * PC-9800 machine types.
+ *
+ * Copyright (C) 1999 TAKAI Kosuke <tak@kmc.kyoto-u.ac.jp>
+ * (Linux/98 Project)
+ */
+
+#ifndef _ASM_PC9800_H_
+#define _ASM_PC9800_H_
+
+#include <asm/pc9800_sca.h>
+#include <asm/types.h>
+
+#define __PC9800SCA(type, pa) (*(type *) phys_to_virt(pa))
+#define __PC9800SCA_TEST_BIT(pa, n) \
+ ((__PC9800SCA(u8, pa) & (1U << (n))) != 0)
+
+#define PC9800_HIGHRESO_P() __PC9800SCA_TEST_BIT(PC9800SCA_BIOS_FLAG, 3)
+#define PC9800_8MHz_P() __PC9800SCA_TEST_BIT(PC9800SCA_BIOS_FLAG, 7)
+
+ /* 0x2198 is 98 21 on memory... */
+#define PC9800_9821_P() (__PC9800SCA(u16, PC9821SCA_ROM_ID) == 0x2198)
+
+/* Note PC9821_...() are valid only when PC9800_9821_P() was true. */
+#define PC9821_IDEIF_DOUBLE_P() __PC9800SCA_TEST_BIT(PC9821SCA_ROM_FLAG4, 4)
+
+#endif
-
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