1 files changed, 103 insertions, 0 deletions
diff --git a/cfe/cfe/include/cfe_irq.h b/cfe/cfe/include/cfe_irq.h
new file mode 100644
index 0000000..7605b5e
--- /dev/null
+++ b/cfe/cfe/include/cfe_irq.h
@@ -0,0 +1,103 @@
+/*  *********************************************************************
+    *  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);