/* lib-inttest-edge.c. Test of Or1ksim library edge triggered interrupt funcs.
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/* lib-inttest-edge.c. Test of Or1ksim library edge triggered interrupt funcs.
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Copyright (C) 1999-2006 OpenCores
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Copyright (C) 1999-2006 OpenCores
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Copyright (C) 2010 Embecosm Limited
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Copyright (C) 2010 Embecosm Limited
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Contributors various OpenCores participants
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Contributors various OpenCores participants
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Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
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Contributor Jeremy Bennett <jeremy.bennett@embecosm.com>
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This file is part of OpenRISC 1000 Architectural Simulator.
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This file is part of OpenRISC 1000 Architectural Simulator.
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This program is free software; you can redistribute it and/or modify it
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This program is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by the Free
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under the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at your option)
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Software Foundation; either version 3 of the License, or (at your option)
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any later version.
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any later version.
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This program is distributed in the hope that it will be useful, but WITHOUT
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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more details.
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You should have received a copy of the GNU General Public License along
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You should have received a copy of the GNU General Public License along
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with this program. If not, see <http: www.gnu.org/licenses/>. */
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with this program. If not, see <http: www.gnu.org/licenses/>. */
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/* ----------------------------------------------------------------------------
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/* ----------------------------------------------------------------------------
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This code is commented throughout for use with Doxygen.
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This code is commented throughout for use with Doxygen.
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--------------------------------------------------------------------------*/
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--------------------------------------------------------------------------*/
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#include <stdlib.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <stdio.h>
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#include "or1ksim.h"
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#include "or1ksim.h"
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/*! Number of interrupts in PIC */
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/*! Number of interrupts in PIC */
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#define NUM_INTS 32
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#define NUM_INTS 32
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/*! Globally shared pointer to the interrupts */
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/*! Globally shared pointer to the interrupts */
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char **intv;
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char **intv;
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/*! Number of interrupts to process */
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/*! Number of interrupts to process */
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int intc;
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int intc;
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/* --------------------------------------------------------------------------*/
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/* --------------------------------------------------------------------------*/
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/*!Trigger the next interrupt
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/*!Trigger the next interrupt
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Generate the next edge triggered interrupt. Put out a message if doing so,
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Generate the next edge triggered interrupt. Put out a message if doing so,
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and warn if the interrupt would be invalid.
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and warn if the interrupt would be invalid.
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@return 1 (true) if an interrupt was triggered, 0 (false) otherwise. */
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@return 1 (true) if an interrupt was triggered, 0 (false) otherwise. */
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/* --------------------------------------------------------------------------*/
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/* --------------------------------------------------------------------------*/
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static int
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static int
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do_next_int ()
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do_next_int ()
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{
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{
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static int next_int = 0; /* Next interrupt to process */
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static int next_int = 0; /* Next interrupt to process */
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while (next_int < intc)
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while (next_int < intc)
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{
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{
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int inum = atoi (intv[next_int++]);
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int inum = atoi (intv[next_int++]);
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if ((0 <= inum) && (inum < NUM_INTS))
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if ((0 <= inum) && (inum < NUM_INTS))
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{
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{
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printf ("Triggering interrupt %d\n", inum);
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printf ("Triggering interrupt %d\n", inum);
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or1ksim_interrupt (inum);
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or1ksim_interrupt (inum);
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return 1;
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return 1;
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}
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}
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else
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else
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{
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{
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printf ("Warning: Invalid interrupt # %d - ignored\n", inum);
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printf ("Warning: Invalid interrupt # %d - ignored\n", inum);
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}
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}
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}
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}
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return 0; /* No more interrupts to trigger */
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return 0; /* No more interrupts to trigger */
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} /* do_next_int () */
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} /* do_next_int () */
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/* --------------------------------------------------------------------------*/
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/* --------------------------------------------------------------------------*/
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/*!Read upcall
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/*!Read upcall
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Upcall from Or1ksim to read a word from an external peripheral. If called
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Upcall from Or1ksim to read a word from an external peripheral. If called
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this will trigger an interrupt.
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this will trigger an interrupt.
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@param[in] class_ptr A handle pass back from the initalization. Intended
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@param[in] class_ptr A handle pass back from the initalization. Intended
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for C++ callers, not used here.
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for C++ callers, not used here.
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@param[in] addr Address to read from. Ignored here.
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@param[in] addr Address to read from. Ignored here.
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@param[in] mask Byte mask for the read. Ignored here.
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@param[in] mask Byte mask for the read. Ignored here.
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@param[out] rdata Buffer for the data read. Ignored here.
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@param[out] rdata Buffer for the data read. Ignored here.
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@param[in] data_len Number of bytes in mask and rdata.
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@param[in] data_len Number of bytes in mask and rdata.
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@return Zero on success, non-zero on failure. Always zero here. */
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@return Zero on success, non-zero on failure. Always zero here. */
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/* --------------------------------------------------------------------------*/
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/* --------------------------------------------------------------------------*/
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static int
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static int
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read_upcall (void *class_ptr,
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read_upcall (void *class_ptr,
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unsigned long int addr,
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unsigned long int addr,
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unsigned char mask[],
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unsigned char mask[],
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unsigned char rdata[],
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unsigned char rdata[],
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int data_len)
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int data_len)
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{
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{
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do_next_int ();
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do_next_int ();
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return 0; /* Success */
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return 0; /* Success */
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} /* read_upcall () */
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} /* read_upcall () */
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/* --------------------------------------------------------------------------*/
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/* --------------------------------------------------------------------------*/
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/*!Write upcall
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/*!Write upcall
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Upcall from Or1ksim to write a word to an external peripheral. If called
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Upcall from Or1ksim to write a word to an external peripheral. If called
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this will trigger an interrupt.
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this will trigger an interrupt.
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@param[in] class_ptr A handle pass back from the initalization. Intended
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@param[in] class_ptr A handle pass back from the initalization. Intended
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for C++ callers, not used here.
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for C++ callers, not used here.
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@param[in] addr Address to write to. Ignored here.
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@param[in] addr Address to write to. Ignored here.
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@param[in] mask Byte mask for the write. Ignored here.
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@param[in] mask Byte mask for the write. Ignored here.
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@param[in] wdata The data to write. Ignored here.
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@param[in] wdata The data to write. Ignored here.
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@param[in] data_len Number of bytes in mask and rdata.
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@param[in] data_len Number of bytes in mask and rdata.
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@return Zero on success, non-zero on failure. Always zero here. */
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@return Zero on success, non-zero on failure. Always zero here. */
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/* --------------------------------------------------------------------------*/
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/* --------------------------------------------------------------------------*/
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static int
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static int
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write_upcall (void *class_ptr,
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write_upcall (void *class_ptr,
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unsigned long int addr,
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unsigned long int addr,
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unsigned char mask[],
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unsigned char mask[],
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unsigned char wdata[],
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unsigned char wdata[],
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int data_len)
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int data_len)
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{
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{
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do_next_int ();
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do_next_int ();
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return 0; /* Success */
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return 0; /* Success */
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} /* write_upcall () */
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} /* write_upcall () */
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/* --------------------------------------------------------------------------*/
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/* --------------------------------------------------------------------------*/
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/*!Main program
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/*!Main program
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Build an or1ksim program using the library which loads a program and config
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Build an or1ksim program using the library which loads a program and config
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from the command line, and then drives interrupts. Usage:
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from the command line, and then drives interrupts. Usage:
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lib-inttest-edge <config-file> <image> <duration_ms> <int #> <int #> ...
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lib-inttest-edge <config-file> <image> <duration_ms> <int #> <int #> ...
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<image> is run for repeated perios of <duration_ms>, during which it
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<image> is run for repeated perios of <duration_ms>, during which it
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will make upcalls. Between each period and during each upcall an edge based
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will make upcalls. Between each period and during each upcall an edge based
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interrupt will be triggered, until all interrupts listed have been
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interrupt will be triggered, until all interrupts listed have been
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triggered.
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triggered.
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@param[in] argc Number of elements in argv
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@param[in] argc Number of elements in argv
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@param[in] argv Vector of program name and arguments
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@param[in] argv Vector of program name and arguments
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@return Return code for the program. */
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@return Return code for the program. */
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/* --------------------------------------------------------------------------*/
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/* --------------------------------------------------------------------------*/
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int
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int
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main (int argc,
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main (int argc,
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char *argv[])
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char *argv[])
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{
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{
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/* Parse args */
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/* Parse args */
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if (argc < 5)
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if (argc < 5)
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{
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{
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fprintf (stderr,
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fprintf (stderr,
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"usage: lib-inttest-edge <config-file> <image> <duration_ms> "
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"usage: lib-inttest-edge <config-file> <image> <duration_ms> "
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"<int #> <int #> ...\n");
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"<int #> <int #> ...\n");
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return 1;
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return 1;
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}
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}
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int duration_ms = atoi (argv[3]);
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int duration_ms = atoi (argv[3]);
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double duration = (double) duration_ms / 1.0e3;
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double duration = (double) duration_ms / 1.0e3;
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if (duration_ms <= 0)
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if (duration_ms <= 0)
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{
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{
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fprintf (stderr, "ERROR. Duration must be positive number of ms\n");
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fprintf (stderr, "ERROR. Duration must be positive number of ms\n");
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return 1;
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return 1;
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}
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}
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/* Dummy argv array to pass arguments to or1ksim_init. Varies depending on
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whether an image file is specified. */
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int dummy_argc;
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char *dummy_argv[5];
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dummy_argv[0] = "libsim";
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dummy_argv[1] = "-q";
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dummy_argv[2] = "-f";
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dummy_argv[3] = argv[1];
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dummy_argv[4] = argv[2];
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dummy_argc = 5;
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/* Initialize the program. Put the initialization message afterwards, or it
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/* Initialize the program. Put the initialization message afterwards, or it
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will get swamped by the Or1ksim header. */
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will get swamped by the Or1ksim header. */
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if (0 == or1ksim_init (argv[1], argv[2], NULL, &read_upcall, &write_upcall))
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if (0 == or1ksim_init (dummy_argc, dummy_argv, NULL, &read_upcall,
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&write_upcall))
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{
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{
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printf ("Initalization succeeded.\n");
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printf ("Initalization succeeded.\n");
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}
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}
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else
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else
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{
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{
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printf ("Initalization failed.\n");
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printf ("Initalization failed.\n");
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return 1;
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return 1;
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}
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}
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/* Do each interrupt in turn. Set up the shared pointer to the interrupts
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/* Do each interrupt in turn. Set up the shared pointer to the interrupts
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and counter. */
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and counter. */
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intv = &(argv[4]);
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intv = &(argv[4]);
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intc = argc - 4;
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intc = argc - 4;
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do
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do
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{
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{
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/* Run the code */
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/* Run the code */
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if (OR1KSIM_RC_OK != or1ksim_run (duration))
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if (OR1KSIM_RC_OK != or1ksim_run (duration))
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{
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{
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printf ("ERROR: run failed\n");
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printf ("ERROR: run failed\n");
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return 1;
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return 1;
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}
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}
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}
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}
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while (do_next_int ());
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while (do_next_int ());
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/* One more run, to allow interrupt handler enough time to finish
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/* One more run, to allow interrupt handler enough time to finish
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processing. */
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processing. */
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if (OR1KSIM_RC_OK != or1ksim_run (duration))
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if (OR1KSIM_RC_OK != or1ksim_run (duration))
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{
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{
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printf ("ERROR: run failed\n");
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printf ("ERROR: run failed\n");
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return 1;
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return 1;
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}
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}
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/* All interrupts should have been handled. */
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/* All interrupts should have been handled. */
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printf ("Test completed successfully.\n");
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printf ("Test completed successfully.\n");
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return 0;
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return 0;
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} /* main () */
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} /* main () */
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