diff options
Diffstat (limited to 'include/asm-sh/dreamcast/sysasic.h')
| -rw-r--r-- | include/asm-sh/dreamcast/sysasic.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/include/asm-sh/dreamcast/sysasic.h b/include/asm-sh/dreamcast/sysasic.h new file mode 100644 index 000000000000..c8858537803c --- /dev/null +++ b/include/asm-sh/dreamcast/sysasic.h @@ -0,0 +1,43 @@ +/* include/asm-sh/dc_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) + * + * Released under the terms of the GNU GPL v2.0. + * + */ +#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 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 */ +#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) + +#endif /* __ASM_SH_DREAMCAST_SYSASIC_H */ + |