Warning: This file is not a C or C++ file. It does not have highlighting.
| 1 | /* SPDX-License-Identifier: GPL-2.0 |
|---|---|
| 2 | * |
| 3 | * include/asm-sh/dreamcast/sysasic.h |
| 4 | * |
| 5 | * Definitions for the Dreamcast System ASIC and related peripherals. |
| 6 | * |
| 7 | * Copyright (c) 2001 M. R. Brown <mrbrown@linuxdc.org> |
| 8 | * Copyright (C) 2003 Paul Mundt <lethal@linux-sh.org> |
| 9 | * |
| 10 | * This file is part of the LinuxDC project (www.linuxdc.org) |
| 11 | */ |
| 12 | #ifndef __ASM_SH_DREAMCAST_SYSASIC_H |
| 13 | #define __ASM_SH_DREAMCAST_SYSASIC_H |
| 14 | |
| 15 | #include <asm/irq.h> |
| 16 | |
| 17 | /* Hardware events - |
| 18 | |
| 19 | Each of these events correspond to a bit within the Event Mask Registers/ |
| 20 | Event Status Registers. Because of the virtual IRQ numbering scheme, a |
| 21 | base offset must be used when calculating the virtual IRQ that each event |
| 22 | takes. |
| 23 | */ |
| 24 | |
| 25 | #define HW_EVENT_IRQ_BASE (48 + 16) |
| 26 | |
| 27 | /* IRQ 13 */ |
| 28 | #define HW_EVENT_VSYNC (HW_EVENT_IRQ_BASE + 5) /* VSync */ |
| 29 | #define HW_EVENT_MAPLE_DMA (HW_EVENT_IRQ_BASE + 12) /* Maple DMA complete */ |
| 30 | #define HW_EVENT_GDROM_DMA (HW_EVENT_IRQ_BASE + 14) /* GD-ROM DMA complete */ |
| 31 | #define HW_EVENT_G2_DMA (HW_EVENT_IRQ_BASE + 15) /* G2 DMA complete */ |
| 32 | #define HW_EVENT_PVR2_DMA (HW_EVENT_IRQ_BASE + 19) /* PVR2 DMA complete */ |
| 33 | |
| 34 | /* IRQ 11 */ |
| 35 | #define HW_EVENT_GDROM_CMD (HW_EVENT_IRQ_BASE + 32) /* GD-ROM cmd. complete */ |
| 36 | #define HW_EVENT_AICA_SYS (HW_EVENT_IRQ_BASE + 33) /* AICA-related */ |
| 37 | #define HW_EVENT_EXTERNAL (HW_EVENT_IRQ_BASE + 35) /* Ext. (expansion) */ |
| 38 | |
| 39 | #define HW_EVENT_IRQ_MAX (HW_EVENT_IRQ_BASE + 95) |
| 40 | |
| 41 | /* arch/sh/boards/mach-dreamcast/irq.c */ |
| 42 | extern int systemasic_irq_demux(int); |
| 43 | extern void systemasic_irq_init(void); |
| 44 | |
| 45 | #endif /* __ASM_SH_DREAMCAST_SYSASIC_H */ |
| 46 | |
| 47 |
Warning: This file is not a C or C++ file. It does not have highlighting.