forked from Imagelibrary/rtems
75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/* void Shm_Cause_interrupt( node )
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*
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* This routine is the shared memory driver routine which
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* generates interrupts to other CPUs.
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*
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* It uses the information placed in the node status control
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* block by each node. For example, when used with the Motorola
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* MVME136 board, the MPCSR is used.
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*
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* Input parameters:
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* node - destination of this packet (0 = broadcast)
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*
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* Output parameters: NONE
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*
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <rtems.h>
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#include "shm_driver.h"
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void Shm_Cause_interrupt(
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uint32_t node
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)
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{
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Shm_Interrupt_information *intr;
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uint8_t *u8;
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uint16_t *u16;
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uint32_t *u32;
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uint32_t value;
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intr = &Shm_Interrupt_table[node];
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value = intr->value;
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switch ( intr->length ) {
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case NO_INTERRUPT:
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break;
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case BYTE:
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u8 = (uint8_t*)intr->address;
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*u8 = (uint8_t) value;
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break;
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case WORD:
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u16 = (uint16_t*)intr->address;
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*u16 = (uint16_t) value;
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break;
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case LONG:
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u32 = (uint32_t*)intr->address;
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*u32 = (uint32_t) value;
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break;
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}
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}
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