From 3d61697e688c99ff9265238b2eab474f7f1bcfc8 Mon Sep 17 00:00:00 2001
From: Octasic Inc <support@octasic.com>
Date: Wed, 23 Nov 2005 15:07:18 +0200
Subject: importing OCT612x-01.00-PR38

---
 .../oct6100_apimi/oct6100_mask_interrupts.c        | 116 +++++++++++++++++++++
 1 file changed, 116 insertions(+)
 create mode 100644 software/octdeviceapi/oct6100api/oct6100_apimi/oct6100_mask_interrupts.c

(limited to 'software/octdeviceapi/oct6100api/oct6100_apimi/oct6100_mask_interrupts.c')

diff --git a/software/octdeviceapi/oct6100api/oct6100_apimi/oct6100_mask_interrupts.c b/software/octdeviceapi/oct6100api/oct6100_apimi/oct6100_mask_interrupts.c
new file mode 100644
index 0000000..38caff4
--- /dev/null
+++ b/software/octdeviceapi/oct6100api/oct6100_apimi/oct6100_mask_interrupts.c
@@ -0,0 +1,116 @@
+/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*\
+
+File:  oct6100_mask_interrupts.c
+
+    Copyright (c) 2001-2005 Octasic Inc.
+    
+Description: 
+
+	This file contains the mask interrupts function.
+
+This file is part of the Octasic OCT6100 GPL API . The OCT6100 GPL API  is 
+free software; you can redistribute it and/or modify it under the terms of 
+the GNU General Public License as published by the Free Software Foundation; 
+either version 2 of the License, or (at your option) any later version.
+
+The OCT6100 GPL API is distributed in the hope that it will be useful, but 
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 
+or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 
+for more details. 
+
+You should have received a copy of the GNU General Public License 
+along with the OCT6100 GPL API; if not, write to the Free Software 
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+
+$Octasic_Release: OCT612xAPI-01.00-PR38 $
+
+$Octasic_Revision: 7 $
+
+\*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
+
+
+/*****************************  INCLUDE FILES  *******************************/
+
+#include "oct6100api/oct6100_apimi.h"
+#include "oct6100api/oct6100_apiud.h"
+#include "oct6100api/oct6100_errors.h"
+#include "oct6100api/oct6100_defines.h"
+
+
+/*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*\
+
+Function:		Oct6100InterruptMask
+
+Description:    The function is used to mask out the interrupt pin of the chip.  
+				This function is used when a deferred procedure call treats the 
+				interrupt (new interrupts must not be generated until the 
+				signaled interrupt is treated).  Which chip is to have its 
+				interrupts masked is determined by the mask structure, 
+				f_pInterruptMask.
+
+-------------------------------------------------------------------------------
+|	Argument		|	Description
+-------------------------------------------------------------------------------
+f_pInterruptMask		Pointer to the interrupt masking structure.
+
+\*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*/
+UINT32 Oct6100InterruptMaskDef(
+				OUT		tPOCT6100_INTERRUPT_MASK f_pInterruptMask )
+{
+	f_pInterruptMask->ulUserChipIndex = cOCT6100_INVALID_VALUE;
+	f_pInterruptMask->pProcessContext = NULL;
+
+
+	return cOCT6100_ERR_OK;
+}
+
+UINT32 Oct6100InterruptMask(
+				IN		tPOCT6100_INTERRUPT_MASK f_pInterruptMask )
+{
+	tOCT6100_WRITE_PARAMS	WriteParams;
+	tOCT6100_READ_PARAMS	ReadParams;
+	UINT32	result;
+	UINT16	usReadData;
+
+	/* Determine if the chip's interrupt pin is active.*/
+	ReadParams.ulReadAddress = 0x210;
+	ReadParams.pusReadData = &usReadData;
+	ReadParams.pProcessContext = f_pInterruptMask->pProcessContext;
+
+	ReadParams.ulUserChipId = f_pInterruptMask->ulUserChipIndex;
+	
+	result = Oct6100UserDriverReadOs( &ReadParams );
+	if ( result != cOCT6100_ERR_OK ) 
+		return cOCT6100_ERR_INTRPTS_RW_ERROR;
+
+	if ( (usReadData & 0xFFFF) != 0 )
+	{
+		/* Chip's interrupt pin is active, so mask interrupt pin. */
+		ReadParams.ulReadAddress = 0x214;
+		result = Oct6100UserDriverReadOs( &ReadParams );
+		if ( result != cOCT6100_ERR_OK ) 
+			return cOCT6100_ERR_INTRPTS_RW_ERROR;
+
+		/* Determine if the chip's interrupt pin is active. */
+		WriteParams.pProcessContext = f_pInterruptMask->pProcessContext;
+
+		WriteParams.ulUserChipId = f_pInterruptMask->ulUserChipIndex;
+		WriteParams.ulWriteAddress = 0x214;
+		WriteParams.usWriteData = (UINT16)( (usReadData & 0xC000) | 0x3FFF );
+	
+		result = Oct6100UserDriverWriteOs( &WriteParams );
+		if ( result != cOCT6100_ERR_OK ) 
+			return cOCT6100_ERR_INTRPTS_RW_ERROR;
+
+		WriteParams.ulWriteAddress = 0x212;
+		WriteParams.usWriteData = 0x8000;
+	
+		result = Oct6100UserDriverWriteOs( &WriteParams );
+		if ( result != cOCT6100_ERR_OK ) 
+			return cOCT6100_ERR_INTRPTS_RW_ERROR;
+		
+		return cOCT6100_ERR_OK;
+	}
+	
+	return cOCT6100_ERR_INTRPTS_NOT_ACTIVE;
+}
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