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Diffstat (limited to 'include/asm-sh/dreamcast/sysasic.h')
-rw-r--r--include/asm-sh/dreamcast/sysasic.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/include/asm-sh/dreamcast/sysasic.h b/include/asm-sh/dreamcast/sysasic.h
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+++ b/include/asm-sh/dreamcast/sysasic.h
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+/* include/asm-sh/dc_sysasic.h
+ *
+ * Definitions for the Dreamcast System ASIC and related peripherals.
+ *
+ * Copyright (c) 2001 M. R. Brown <mrbrown@linuxdc.org>
+ * Copyright (C) 2003 Paul Mundt <lethal@linux-sh.org>
+ *
+ * This file is part of the LinuxDC project (www.linuxdc.org)
+ *
+ * Released under the terms of the GNU GPL v2.0.
+ *
+ */
+#ifndef __ASM_SH_DREAMCAST_SYSASIC_H
+#define __ASM_SH_DREAMCAST_SYSASIC_H
+
+#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 */
+#define HW_EVENT_G2_DMA (HW_EVENT_IRQ_BASE + 15) /* G2 DMA complete */
+#define HW_EVENT_PVR2_DMA (HW_EVENT_IRQ_BASE + 19) /* PVR2 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)
+
+#endif /* __ASM_SH_DREAMCAST_SYSASIC_H */
+