/* 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 <mrbrown@linuxdc.org> * Copyright (C) 2003 Paul Mundt <lethal@linux-sh.org> * * 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 /* 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 */