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|
/*****************************************************************************/
/*
* stlload.c -- stallion intelligent multiport down loader.
*
* Copyright (c) 1994-1996 Greg Ungerer (gerg@stallion.oz.au).
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Greg Ungerer.
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
/*****************************************************************************/
#ifndef lint
static const char rcsid[] =
"$FreeBSD$";
#endif /* not lint */
#include <err.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <machine/cdk.h>
/*****************************************************************************/
char *version = "1.0.0";
char *defdevice = "/dev/staliomem%d";
char *image = BOOTDIR "/cdk.sys";
char *oldimage = BOOTDIR "/2681.sys";
char *memdevice;
char devstr[128];
int brdnr = 0;
int verbose = 0;
int reset = 0;
/*
* Define a local buffer for copying the image into the shared memory.
*/
#define BUFSIZE 4096
char buf[BUFSIZE];
/*
* Define the timeout length when waiting for slave to start up.
* The quantity is measured in seconds.
*/
#define TIMEOUT 5
/*
* Set up a default feature area structure.
*/
cdkfeature_t feature = { 0, 0, ETYP_CDK, 0, 0, 0, 0, 0 };
/*
* Have local copies of the board signatures ready.
*/
cdkecpsig_t ecpsig;
cdkonbsig_t onbsig;
/*****************************************************************************/
/*
* Declare internal function prototypes here.
*/
static void usage(void);
int ecpfindports(cdkecpsig_t *sigp);
int onbfindports(cdkonbsig_t *sigp);
int download(void);
/*****************************************************************************/
static void usage()
{
fprintf(stderr, "%s\n%s\n",
"usage: stlload [-vhVR] [-i image-file] [-c control-device] [-r rx-buf-size]",
" [-t tx-buf-size] [-B boot-banner] [-b unit-number]");
exit(0);
}
/*****************************************************************************/
/*
* Given a boards signature determine how many ports it has. We need to
* know this to setup the slave feature arguments. This function is for
* ECP boards only.
*/
int ecpfindports(cdkecpsig_t *sigp)
{
unsigned int id;
int bank, nrports;
nrports = 0;
for (bank = 0; (bank < 8); bank++) {
id = (unsigned int) sigp->panelid[bank];
if (id == 0xff)
break;
if ((id & 0x07) != bank)
break;
if (id & 0x20) {
nrports += 16;
bank++;
} else {
nrports += 8;
}
}
return(nrports);
}
/*****************************************************************************/
/*
* Given a boards signature determine how many ports it has. We need to
* know this to setup the slave feature arguments. This function is for
* ONboards and Brumbys.
*/
int onbfindports(cdkonbsig_t *sigp)
{
int i, nrports;
if (sigp->amask1) {
nrports = 32;
} else {
for (i = 0; (i < 16); i++) {
if (((sigp->amask0 << i) & 0x8000) == 0)
break;
}
nrports = i;
}
return(nrports);
}
/*****************************************************************************/
/*
* Download an image to the slave board. There is a long sequence of
* things to do to get the slave running, but it is basically a simple
* process. Main things to do are: copy slave image into shared memory,
* start slave running and then read shared memory map.
*/
int download()
{
unsigned char alivemarker;
time_t strttime;
int memfd, ifd;
int nrdevs, sigok, n;
if (verbose)
printf("Opening shared memory device %s\n", memdevice);
if ((memfd = open(memdevice, O_RDWR)) < 0) {
warn("failed to open memory device %s", memdevice);
return(-1);
}
/*
* Before starting the download must tell driver that we are about to
* stop its slave. This is only important if it is already running.
* Once we have told the driver its stopped then do a hardware reset
* on it, to get it into a known state.
*/
if (verbose)
printf("Stoping any current slave\n");
if (ioctl(memfd, STL_BSTOP, 0) < 0) {
warn("ioctl(STL_BSTOP)");
return(-1);
}
if (verbose)
printf("Reseting the board\n");
if (ioctl(memfd, STL_BRESET, 0) < 0) {
warn("ioctl(STL_BRESET)");
return(-1);
}
if (reset)
return(0);
/*
* After reseting the board we need to send an interrupt to the older
* board types to get them to become active. Do that now.
*/
if (verbose)
printf("Interrupting board to activate shared memory\n");
if (ioctl(memfd, STL_BINTR, 0) < 0) {
warn("ioctl(STL_BINTR)");
return(-1);
}
/*sleep(1);*/
if (verbose)
printf("Opening slave image file %s\n", image);
if ((ifd = open(image, O_RDONLY)) < 0) {
warn("failed to open image file %s", image);
return(-1);
}
/*
* At this point get the signature of the board from the shared memory.
* Do a double check that it is a board we know about. We will also need
* to calculate the number of ports on this board (to use later).
*/
sigok = 0;
if (verbose)
printf("Reading ROM signature from board\n");
if (lseek(memfd, CDK_SIGADDR, SEEK_SET) != CDK_SIGADDR) {
warn("lseek(%x) failed on memory file", CDK_FEATADDR);
return(-1);
}
if (read(memfd, &ecpsig, sizeof(cdkecpsig_t)) < 0) {
warn("read of ROM signature failed");
return(-1);
}
if (ecpsig.magic == ECP_MAGIC) {
nrdevs = ecpfindports(&ecpsig);
if (nrdevs < 0)
return(-1);
sigok++;
}
if (lseek(memfd, CDK_SIGADDR, SEEK_SET) != CDK_SIGADDR) {
warn("lseek(%x) failed on memory file", CDK_FEATADDR);
return(-1);
}
if (read(memfd, &onbsig, sizeof(cdkonbsig_t)) < 0) {
warn("read of ROM signature failed");
return(-1);
}
if ((onbsig.magic0 == ONB_MAGIC0) && (onbsig.magic1 == ONB_MAGIC1) &&
(onbsig.magic2 == ONB_MAGIC2) &&
(onbsig.magic3 == ONB_MAGIC3)) {
nrdevs = onbfindports(&onbsig);
if (nrdevs < 0)
return(-1);
sigok++;
}
if (! sigok) {
warnx("unknown signature from board");
return(-1);
}
if (verbose)
printf("Board signature reports %d ports\n", nrdevs);
/*
* Start to copy the image file into shared memory. The first thing to
* do is copy the vector region in from shared memory address 0. We will
* then skip over the signature and feature area and start copying the
* actual image data and code from 4k upwards.
*/
if (verbose)
printf("Copying vector table into shared memory\n");
if ((n = read(ifd, buf, CDK_SIGADDR)) < 0) {
warn("read of image file failed");
return(-1);
}
if (lseek(memfd, 0, SEEK_SET) != 0) {
warn("lseek(%x) failed on memory file", CDK_FEATADDR);
return(-1);
}
if (write(memfd, buf, n) < 0) {
warn("write to memory device failed");
return(-1);
}
if (lseek(ifd, 0x1000, SEEK_SET) != 0x1000) {
warn("lseek(%x) failed on image file", CDK_FEATADDR);
return(-1);
}
if (lseek(memfd, 0x1000, SEEK_SET) != 0x1000) {
warn("lseek(%x) failed on memory device", CDK_FEATADDR);
return(-1);
}
/*
* Copy buffer size chunks of data from the image file into shared memory.
*/
do {
if ((n = read(ifd, buf, BUFSIZE)) < 0) {
warn("read of image file failed");
return(-1);
}
if (write(memfd, buf, n) < 0) {
warn("write to memory device failed");
return(-1);
}
} while (n == BUFSIZE);
close(ifd);
/*
* We need to down load the start up parameters for the slave. This is
* done via the feature area of shared memory. Think of the feature area
* as a way of passing "command line" arguments to the slave.
* FIX: should do something here to load "brdspec" as well...
*/
feature.nrdevs = nrdevs;
if (verbose)
printf("Loading features into shared memory\n");
if (lseek(memfd, CDK_FEATADDR, SEEK_SET) != CDK_FEATADDR) {
warn("lseek(%x) failed on memory device", CDK_FEATADDR);
return(-1);
}
if (write(memfd, &feature, sizeof(cdkfeature_t)) < 0) {
warn("write to memory device failed");
return(-1);
}
/*
* Wait for board alive marker to be set. The slave image will set the
* byte at address CDK_RDYADDR to 0x13 after it has successfully started.
* If this doesn't happen we timeout and fail.
*/
if (verbose)
printf("Setting alive marker to 0\n");
if (lseek(memfd, CDK_RDYADDR, SEEK_SET) != CDK_RDYADDR) {
warn("lseek(%x) failed on memory device", CDK_RDYADDR);
return(-1);
}
alivemarker = 0;
if (write(memfd, &alivemarker, 1) < 0) {
warn("write to memory device failed");
return(-1);
}
/*
* At this point the entire image is loaded into shared memory. To start
* it executiong we poke the board with an interrupt.
*/
if (verbose)
printf("Interrupting board to start slave image\n");
if (ioctl(memfd, STL_BINTR, 0) < 0) {
warn("ioctl(STL_BINTR) failed");
return(-1);
}
strttime = time((time_t *) NULL);
if (verbose)
printf("Waiting for slave alive marker, time=%x timeout=%d\n",
strttime, TIMEOUT);
while (time((time_t *) NULL) < (strttime + TIMEOUT)) {
if (lseek(memfd, CDK_RDYADDR, SEEK_SET) != CDK_RDYADDR) {
warn("lseek(%x) failed on memory device", CDK_RDYADDR);
return(-1);
}
if (read(memfd, &alivemarker, 1) < 0){
warn("read of image file failed");
return(-1);
}
if (alivemarker == CDK_ALIVEMARKER)
break;
}
if (alivemarker != CDK_ALIVEMARKER) {
warnx("slave image failed to start");
return(-1);
}
if (lseek(memfd, CDK_RDYADDR, SEEK_SET) != CDK_RDYADDR) {
warn("lseek(%x) failed on memory device", CDK_RDYADDR);
return(-1);
}
alivemarker = 0;
if (write(memfd, &alivemarker, 1) < 0) {
warn("write to memory device failed");
return(-1);
}
if (verbose)
printf("Slave image started successfully\n");
/*
* The last thing to do now is to get the driver started. Now that the
* slave is operational it must read in the memory map and gets its
* internal tables initialized.
*/
if (verbose)
printf("Driver initializing host shared memory interface\n");
if (ioctl(memfd, STL_BSTART, 0) < 0) {
warn("ioctl(STL_BSTART) failed");
return(-1);
}
close(memfd);
return(0);
}
/*****************************************************************************/
int main(int argc, char *argv[])
{
struct stat statinfo;
int c;
while ((c = getopt(argc, argv, "hvVRB:i:b:c:t:r:")) != -1) {
switch (c) {
case 'V':
printf("stlload version %s\n", version);
exit(0);
break;
case 'B':
feature.banner = atol(optarg);
break;
case 'h':
usage();
break;
case 'v':
verbose++;
break;
case 'i':
image = optarg;
break;
case 'R':
reset++;
break;
case 'b':
brdnr = atoi(optarg);
break;
case 'c':
memdevice = optarg;
break;
case 't':
feature.txrqsize = atol(optarg);
break;
case 'r':
feature.rxrqsize = atol(optarg);
break;
case '?':
default:
usage();
break;
}
}
if (memdevice == (char *) NULL) {
if ((brdnr < 0) || (brdnr >= 8))
errx(1, "invalid board number %d specified", brdnr);
sprintf(devstr, defdevice, brdnr);
memdevice = &devstr[0];
if (verbose)
printf("Using shared memory device %s\n", memdevice);
}
if (verbose)
printf("Downloading image %s to board %d\n", image, brdnr);
/*
* Check that the shared memory device exits and is a character device.
*/
if (stat(memdevice, &statinfo) < 0)
errx(1, "memory device %s does not exist", memdevice);
if ((statinfo.st_mode & S_IFMT) != S_IFCHR)
errx(1, "memory device %s is not a char device", memdevice);
if (stat(image, &statinfo) < 0)
errx(1, "image file %s does not exist", image);
/*
* All argument checking is now done. So lets get this show on the road.
*/
if (download() < 0)
exit(1);
exit(0);
}
/*****************************************************************************/
|