117 lines
3.4 KiB
C
117 lines
3.4 KiB
C
/*
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* Copyright (c) 2000, 2001, 2002, 2003, 2004, 2005, 2008, 2009
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* The President and Fellows of Harvard College.
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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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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY AND CONTRIBUTORS ``AS IS'' AND
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* 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 UNIVERSITY OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <types.h>
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#include <lib.h>
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#include <platform/bus.h>
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#include <lamebus/ltrace.h>
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#include "autoconf.h"
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/* Registers (offsets within slot) */
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#define LTRACE_REG_TRON 0 /* trace on */
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#define LTRACE_REG_TROFF 4 /* trace off */
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#define LTRACE_REG_DEBUG 8 /* debug code */
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#define LTRACE_REG_DUMP 12 /* dump the system */
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#define LTRACE_REG_STOP 16 /* stop for the debugger */
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#define LTRACE_REG_PROFEN 20 /* turn profiling on/off */
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#define LTRACE_REG_PROFCL 24 /* clear the profile */
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static struct ltrace_softc *the_trace;
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void
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ltrace_on(uint32_t code)
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{
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if (the_trace != NULL) {
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bus_write_register(the_trace->lt_busdata, the_trace->lt_buspos,
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LTRACE_REG_TRON, code);
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}
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}
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void
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ltrace_off(uint32_t code)
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{
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if (the_trace != NULL) {
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bus_write_register(the_trace->lt_busdata, the_trace->lt_buspos,
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LTRACE_REG_TROFF, code);
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}
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}
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void
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ltrace_debug(uint32_t code)
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{
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if (the_trace != NULL) {
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bus_write_register(the_trace->lt_busdata, the_trace->lt_buspos,
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LTRACE_REG_DEBUG, code);
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}
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}
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void
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ltrace_dump(uint32_t code)
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{
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if (the_trace != NULL) {
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bus_write_register(the_trace->lt_busdata, the_trace->lt_buspos,
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LTRACE_REG_DUMP, code);
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}
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}
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void
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ltrace_stop(uint32_t code)
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{
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if (the_trace != NULL && the_trace->lt_canstop) {
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bus_write_register(the_trace->lt_busdata, the_trace->lt_buspos,
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LTRACE_REG_STOP, code);
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}
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}
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void
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ltrace_setprof(uint32_t onoff)
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{
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if (the_trace != NULL && the_trace->lt_canprof) {
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bus_write_register(the_trace->lt_busdata, the_trace->lt_buspos,
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LTRACE_REG_PROFEN, onoff);
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}
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}
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void
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ltrace_eraseprof(void)
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{
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if (the_trace != NULL && the_trace->lt_canprof) {
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bus_write_register(the_trace->lt_busdata, the_trace->lt_buspos,
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LTRACE_REG_PROFCL, 1);
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}
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}
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int
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config_ltrace(struct ltrace_softc *sc, int ltraceno)
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{
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(void)ltraceno;
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the_trace = sc;
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return 0;
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}
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