/* 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 + 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 */
Messung V0.5 in Prozent C=71 H=72 G=71
¤ Dauer der Verarbeitung: 0.12 Sekunden
(vorverarbeitet am 2026-09-28)
¤
*© Formatika GbR, Deutschland