dc_sysasic.h
上传用户:jlfgdled
上传日期:2013-04-10
资源大小:33168k
文件大小:1k
- /* include/asm-sh/dc_sysasic.h
- *
- * Definitions for the Dreamcast System ASIC and related peripherals.
- *
- * Copyright (c) 2001 M. R. Brown <mrbrown@linuxdc.org>
- *
- * This file is part of the LinuxDC project (www.linuxdc.org)
- *
- * Released under the terms of the GNU GPL v2.0.
- *
- */
- #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 */
- /* 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)