patch-2.4.6 linux/include/asm-sh/dc_sysasic.h

• Lines: 36
• Date: Wed Jun 27 13:55:29 2001
• Orig file: v2.4.5/linux/include/asm-sh/dc_sysasic.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.5/linux/include/asm-sh/dc_sysasic.h linux/include/asm-sh/dc_sysasic.h
@@ -0,0 +1,35 @@
+/* include/asm-sh/dc_sysasic.h
+ *
+ * Definitions for the Dreamcast System ASIC and related peripherals.
+ *
+ * Copyright (c) 2001 M. R. Brown <mrbrown@linuxdc.org>
+ *
+ * This file is part of the LinuxDC project (www.linuxdc.org)
+ *
+ * Released under the terms of the GNU GPL v2.0.
+ *
+ */
+
+#include <asm/irq.h>
+
+/* Hardware events -
+
+   Each of these events correspond to a bit within the Event Mask Registers/
+   Event Status Registers.  Because of the virtual IRQ numbering scheme, a
+   base offset must be used when calculating the virtual IRQ that each event
+   takes.
+*/
+
+#define HW_EVENT_IRQ_BASE  OFFCHIP_IRQ_BASE /* 48 */
+
+/* IRQ 13 */
+#define HW_EVENT_VSYNC     (HW_EVENT_IRQ_BASE +  5) /* VSync */
+#define HW_EVENT_MAPLE_DMA (HW_EVENT_IRQ_BASE + 12) /* Maple DMA complete */
+#define HW_EVENT_GDROM_DMA (HW_EVENT_IRQ_BASE + 14) /* GD-ROM DMA complete */
+
+/* IRQ 11 */
+#define HW_EVENT_GDROM_CMD (HW_EVENT_IRQ_BASE + 32) /* GD-ROM cmd. complete */
+#define HW_EVENT_AICA_SYS  (HW_EVENT_IRQ_BASE + 33) /* AICA-related */
+#define HW_EVENT_EXTERNAL  (HW_EVENT_IRQ_BASE + 35) /* Ext. (expansion) */
+
+#define HW_EVENT_IRQ_MAX (HW_EVENT_IRQ_BASE + 95)