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/* *********************************************************************
* Broadcom Common Firmware Environment (CFE)
*
* IRQ related definitions File: cfe_irq.h
*
* This module describes CFE's interface for dispatching
* to driver-supplied service routines. Dispatch can be based
* either on asynchronous interrupt events or on synchrnous
* polling of the interrupt status registers from the idle loop.
*
* The interface attempts to accomodate the concept of interrupt
* mapping as is common on high-integration parts with standard
* cores. The details are motivated by the bcm1250/MIPS
* architecture, where the mapping abstraction is somewhat violated
* by CP0 interrupts that do not go through the mapper.
*
*********************************************************************
*
* Copyright 2000,2001,2002,2003
* Broadcom Corporation. All rights reserved.
*
* This software is furnished under license and may be used and
* copied only in accordance with the following terms and
* conditions. Subject to these conditions, you may download,
* copy, install, use, modify and distribute modified or unmodified
* copies of this software in source and/or binary form. No title
* or ownership is transferred hereby.
*
* 1) Any source code used, modified or distributed must reproduce
* and retain this copyright notice and list of conditions
* as they appear in the source file.
*
* 2) No right is granted to use any trade name, trademark, or
* logo of Broadcom Corporation. The "Broadcom Corporation"
* name may not be used to endorse or promote products derived
* from this software without the prior written permission of
* Broadcom Corporation.
*
* 3) THIS SOFTWARE IS PROVIDED "AS-IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING BUT NOT LIMITED TO, ANY IMPLIED
* WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
* PURPOSE, OR NON-INFRINGEMENT ARE DISCLAIMED. IN NO EVENT
* SHALL BROADCOM BE LIABLE FOR ANY DAMAGES WHATSOEVER, AND IN
* PARTICULAR, BROADCOM SHALL NOT BE LIABLE FOR DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
* TORT (INCLUDING NEGLIGENCE OR OTHERWISE), EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
********************************************************************* */
/* *********************************************************************
* Constants
********************************************************************* */
#define NR_IRQS 64
#define CFE_IRQ_FLAGS_SHARED 0x1
/* *********************************************************************
* Structures
********************************************************************* */
/* *********************************************************************
* Functions
********************************************************************* */
void cfe_irq_init(void);
/* Functions that use interrupt mapping, i.e., the irq argument is the
interrupt number at the input to the mapper. */
void cfe_mask_irq(int cpu, unsigned int irq);
void cfe_unmask_irq(int cpu, unsigned int irq);
void cfe_enable_irq(unsigned int irq);
void cfe_disable_irq(unsigned int irq);
int cfe_request_irq(unsigned int irq,
void (*handler)(void *), void *arg,
unsigned long irqflags, int device);
void cfe_free_irq(unsigned int irq, int device);
/* pseudo-interrupts, by polling request lines and invoking handlers */
void cfe_irq_poll(void *);
/* Functions that bypass interrupt mapping, i.e., the ip argument
is the interrupt number at the output of the mapper and/or the
input to the CPU. */
typedef void (* ip_handler_t)(int ip);
void cfe_irq_setvector(int ip, ip_handler_t handler);
/* enable/disable interrupts at the CPU level. */
void cfe_irq_enable(int mask);
int cfe_irq_disable(void);
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