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/*
* Copyright (C) 2011 Marcin Kościelnicki <koriakin@0x04.net>
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include "nva.h"
#include <stdio.h>
#include <unistd.h>
#include <pthread.h>
#include <sched.h>
#include <inttypes.h>
int cnum = 0;
int32_t a;
static const int SZ = 1024 * 1024;
uint32_t queue[1024 * 1024];
uint32_t tqueue[1024 * 1024];
uint64_t tqueue64[1024 * 1024];
volatile int get = 0, put = 0;
uint32_t mask = 0xffffffff;
#define NV04_PTIMER_TIME_0 0x00009400
#define NV04_PTIMER_TIME_1 0x00009410
uint64_t get_time(unsigned int card)
{
uint64_t low;
uint64_t high2 = nva_rd32(card, NV04_PTIMER_TIME_1);
uint64_t high1;
do {
high1 = high2;
low = nva_rd32(card, NV04_PTIMER_TIME_0);
high2 = nva_rd32(card, NV04_PTIMER_TIME_1);
} while (high1 != high2);
return ((((uint64_t)high2) << 32) | (uint64_t)low);
}
void *watchfun(void *x) {
uint32_t val = nva_rd32(cnum, a);
queue[put] = val;
put = (put + 1) % SZ;
while (1) {
uint32_t nval = nva_rd32(cnum, a);
if ((nval & mask) != (val & mask)) {
queue[put] = nval;
put = (put + 1) % SZ;
}
val = nval;
}
}
void *twatchfun(void *x) {
uint32_t val = nva_rd32(cnum, a);
queue[put] = val;
tqueue[put] = nva_rd32(cnum, 0x9400);
put = (put + 1) % SZ;
while (1) {
uint32_t nval = nva_rd32(cnum, a);
if ((nval & mask) != (val & mask)) {
queue[put] = nval;
tqueue[put] = nva_rd32(cnum, 0x9400);
put = (put + 1) % SZ;
}
val = nval;
}
}
void *t64watchfun(void *x) {
uint32_t val = nva_rd32(cnum, a);
queue[put] = val;
tqueue64[put] = get_time(cnum);
put = (put + 1) % SZ;
while (1) {
uint32_t nval = nva_rd32(cnum, a);
if ((nval & mask) != (val & mask)) {
queue[put] = nval;
tqueue64[put] = get_time(cnum);
put = (put + 1) % SZ;
}
val = nval;
}
}
int main(int argc, char **argv) {
if (nva_init()) {
fprintf (stderr, "PCI init failure!\n");
return 1;
}
int c;
unsigned int wanttime = 0;
while ((c = getopt (argc, argv, "tc:m:")) != -1)
switch (c) {
case 't':
wanttime++;
if (wanttime > 2)
wanttime = 2;
break;
case 'c':
sscanf(optarg, "%d", &cnum);
break;
case 'm':
sscanf(optarg, "%x", &mask);
break;
}
if (cnum >= nva_cardsnum) {
if (nva_cardsnum)
fprintf (stderr, "No such card.\n");
else
fprintf (stderr, "No cards found.\n");
return 1;
}
if (optind >= argc) {
fprintf (stderr, "No address specified.\n");
return 1;
}
sscanf (argv[optind], "%x", &a);
pthread_t thr;
if (wanttime == 0)
pthread_create(&thr, 0, watchfun, 0);
else if (wanttime == 1)
pthread_create(&thr, 0, twatchfun, 0);
else
pthread_create(&thr, 0, t64watchfun, 0);
uint32_t ptime = 0;
uint64_t ptime64 = 0;
while (1) {
while (get == put)
sched_yield();
if (wanttime == 0)
printf("%08x\n", queue[get]);
else if (wanttime == 1) {
printf("%08x[+%d]: %08x\n", tqueue[get], tqueue[get]-ptime, queue[get]);
ptime = tqueue[get];
} else {
printf("%016"PRIu64"[+%"PRIu64"]: %08x\n", tqueue64[get], tqueue64[get]-ptime64, queue[get]);
ptime64 = tqueue64[get];
}
get = (get + 1) % SZ;
}
}
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