| /* |
| * This file is subject to the terms and conditions of the GNU General Public |
| * License. See the file COPYING in the main directory of this archive |
| * for more details. |
| * |
| * Changed by HuTao Apr18, 2003 |
| * |
| * Copyright was missing when I got the code so took from MIPS arch ...MaTed--- |
| * Copyright (C) 1994 by Waldorf GMBH, written by Ralf Baechle |
| * Copyright (C) 1995, 96, 97, 98, 99, 2000, 2001 by Ralf Baechle |
| * |
| * Adapted for BlackFin (ADI) by Ted Ma <mated@sympatico.ca> |
| * Copyright (c) 2002 Arcturus Networks Inc. (www.arcturusnetworks.com) |
| * Copyright (c) 2002 Lineo, Inc. <mattw@lineo.com> |
| */ |
| |
| #ifndef _BFIN_IRQ_H_ |
| #define _BFIN_IRQ_H_ |
| |
| #include <asm/mach/irq.h> |
| #include <asm/ptrace.h> |
| |
| /******************************************************************************* |
| ***** INTRODUCTION *********** |
| * On the Blackfin, the interrupt structure allows remmapping of the hardware |
| * levels. |
| * - I'm going to assume that the H/W level is going to stay at the default |
| * settings. If someone wants to go through and abstart this out, feel free |
| * to mod the interrupt numbering scheme. |
| * - I'm abstracting the interrupts so that uClinux does not know anything |
| * about the H/W levels. If you want to change the H/W AND keep the abstracted |
| * levels that uClinux sees, you should be able to do most of it here. |
| * - I've left the "abstract" numbering sparce in case someone wants to pull the |
| * interrupts apart (just the TX/RX for the various devices) |
| *******************************************************************************/ |
| |
| /* SYS_IRQS and NR_IRQS are defined in <asm/mach-bf5xx/irq.h>*/ |
| |
| /* |
| * Machine specific interrupt sources. |
| * |
| * Adding an interrupt service routine for a source with this bit |
| * set indicates a special machine specific interrupt source. |
| * The machine specific files define these sources. |
| * |
| * The IRQ_MACHSPEC bit is now gone - the only thing it did was to |
| * introduce unnecessary overhead. |
| * |
| * All interrupt handling is actually machine specific so it is better |
| * to use function pointers, as used by the Sparc port, and select the |
| * interrupt handling functions when initializing the kernel. This way |
| * we save some unnecessary overhead at run-time. |
| * 01/11/97 - Jes |
| */ |
| |
| extern void ack_bad_irq(unsigned int irq); |
| |
| static __inline__ int irq_canonicalize(int irq) |
| { |
| return irq; |
| } |
| |
| /* count of spurious interrupts */ |
| /* extern volatile unsigned int num_spurious; */ |
| |
| #ifndef NO_IRQ |
| #define NO_IRQ ((unsigned int)(-1)) |
| #endif |
| |
| #endif /* _BFIN_IRQ_H_ */ |
