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- /* SPDX-License-Identifier: GPL-2.0
- *
- * include/asm-sh/dreamcast/sysasic.h
- *
- * Definitions for the Dreamcast System ASIC and related peripherals.
- *
- * Copyright (c) 2001 M. R. Brown <[email protected]>
- * Copyright (C) 2003 Paul Mundt <[email protected]>
- *
- * This file is part of the LinuxDC project (www.linuxdc.org)
- */
- #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 (48 + 16)
- /* 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)
- /* arch/sh/boards/mach-dreamcast/irq.c */
- extern int systemasic_irq_demux(int);
- extern void systemasic_irq_init(void);
- #endif /* __ASM_SH_DREAMCAST_SYSASIC_H */
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