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f30c2269 | 1 | /* include/asm-sh/dreamcast/sysasic.h |
1da177e4 LT |
2 | * |
3 | * Definitions for the Dreamcast System ASIC and related peripherals. | |
4 | * | |
5 | * Copyright (c) 2001 M. R. Brown <mrbrown@linuxdc.org> | |
6 | * Copyright (C) 2003 Paul Mundt <lethal@linux-sh.org> | |
7 | * | |
8 | * This file is part of the LinuxDC project (www.linuxdc.org) | |
9 | * | |
10 | * Released under the terms of the GNU GPL v2.0. | |
11 | * | |
12 | */ | |
13 | #ifndef __ASM_SH_DREAMCAST_SYSASIC_H | |
14 | #define __ASM_SH_DREAMCAST_SYSASIC_H | |
15 | ||
16 | #include <asm/irq.h> | |
17 | ||
18 | /* Hardware events - | |
19 | ||
20 | Each of these events correspond to a bit within the Event Mask Registers/ | |
21 | Event Status Registers. Because of the virtual IRQ numbering scheme, a | |
22 | base offset must be used when calculating the virtual IRQ that each event | |
23 | takes. | |
24 | */ | |
25 | ||
26 | #define HW_EVENT_IRQ_BASE OFFCHIP_IRQ_BASE /* 48 */ | |
27 | ||
28 | /* IRQ 13 */ | |
29 | #define HW_EVENT_VSYNC (HW_EVENT_IRQ_BASE + 5) /* VSync */ | |
30 | #define HW_EVENT_MAPLE_DMA (HW_EVENT_IRQ_BASE + 12) /* Maple DMA complete */ | |
31 | #define HW_EVENT_GDROM_DMA (HW_EVENT_IRQ_BASE + 14) /* GD-ROM DMA complete */ | |
32 | #define HW_EVENT_G2_DMA (HW_EVENT_IRQ_BASE + 15) /* G2 DMA complete */ | |
33 | #define HW_EVENT_PVR2_DMA (HW_EVENT_IRQ_BASE + 19) /* PVR2 DMA complete */ | |
34 | ||
35 | /* IRQ 11 */ | |
36 | #define HW_EVENT_GDROM_CMD (HW_EVENT_IRQ_BASE + 32) /* GD-ROM cmd. complete */ | |
37 | #define HW_EVENT_AICA_SYS (HW_EVENT_IRQ_BASE + 33) /* AICA-related */ | |
38 | #define HW_EVENT_EXTERNAL (HW_EVENT_IRQ_BASE + 35) /* Ext. (expansion) */ | |
39 | ||
40 | #define HW_EVENT_IRQ_MAX (HW_EVENT_IRQ_BASE + 95) | |
41 | ||
42 | #endif /* __ASM_SH_DREAMCAST_SYSASIC_H */ | |
43 |