503 lines
13 KiB
C
503 lines
13 KiB
C
/*****************************************************************************/
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/*
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* stlload.c -- stallion intelligent multiport down loader.
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*
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* Copyright (c) 1994-1996 Greg Ungerer (gerg@stallion.oz.au).
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* All rights reserved.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Greg Ungerer.
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* 4. Neither the name of the author nor the names of any co-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 AUTHOR 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 AUTHOR 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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/*****************************************************************************/
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#ifndef lint
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static const char rcsid[] =
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"$Id: stlload.c,v 1.7 1997/10/20 12:51:29 charnier Exp $";
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#endif /* not lint */
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#include <err.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <unistd.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <machine/cdk.h>
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/*****************************************************************************/
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char *version = "1.0.0";
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char *defdevice = "/dev/staliomem%d";
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char *image = BOOTDIR "/cdk.sys";
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char *oldimage = BOOTDIR "/2681.sys";
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char *memdevice;
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char devstr[128];
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int brdnr = 0;
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int verbose = 0;
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int reset = 0;
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/*
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* Define a local buffer for copying the image into the shared memory.
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*/
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#define BUFSIZE 4096
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char buf[BUFSIZE];
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/*
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* Define the timeout length when waiting for slave to start up.
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* The quantity is measured in seconds.
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*/
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#define TIMEOUT 5
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/*
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* Set up a default feature area structure.
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*/
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cdkfeature_t feature = { 0, 0, ETYP_CDK, 0, 0, 0, 0, 0 };
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/*
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* Have local copies of the board signatures ready.
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*/
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cdkecpsig_t ecpsig;
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cdkonbsig_t onbsig;
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/*****************************************************************************/
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/*
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* Declare internal function prototypes here.
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*/
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static void usage(void);
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int ecpfindports(cdkecpsig_t *sigp);
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int onbfindports(cdkonbsig_t *sigp);
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int download(void);
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/*****************************************************************************/
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static void usage()
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{
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fprintf(stderr, "%s\n%s\n",
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"usage: stlload [-vhVR] [-i image-file] [-c control-device] [-r rx-buf-size]",
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" [-t tx-buf-size] [-B boot-banner] [-b unit-number]");
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exit(0);
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}
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/*****************************************************************************/
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/*
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* Given a boards signature determine how many ports it has. We need to
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* know this to setup the slave feature arguments. This function is for
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* ECP boards only.
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*/
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int ecpfindports(cdkecpsig_t *sigp)
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{
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unsigned int id;
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int bank, nrports;
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nrports = 0;
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for (bank = 0; (bank < 8); bank++) {
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id = (unsigned int) sigp->panelid[bank];
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if (id == 0xff)
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break;
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if ((id & 0x07) != bank)
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break;
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if (id & 0x20) {
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nrports += 16;
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bank++;
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} else {
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nrports += 8;
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}
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}
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return(nrports);
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}
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/*****************************************************************************/
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/*
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* Given a boards signature determine how many ports it has. We need to
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* know this to setup the slave feature arguments. This function is for
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* ONboards and Brumbys.
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*/
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int onbfindports(cdkonbsig_t *sigp)
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{
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int i, nrports;
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if (sigp->amask1) {
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nrports = 32;
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} else {
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for (i = 0; (i < 16); i++) {
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if (((sigp->amask0 << i) & 0x8000) == 0)
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break;
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}
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nrports = i;
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}
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return(nrports);
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}
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/*****************************************************************************/
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/*
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* Download an image to the slave board. There is a long sequence of
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* things to do to get the slave running, but it is basically a simple
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* process. Main things to do are: copy slave image into shared memory,
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* start slave running and then read shared memory map.
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*/
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int download()
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{
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unsigned char alivemarker;
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time_t strttime;
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int memfd, ifd;
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int nrdevs, sigok, n;
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if (verbose)
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printf("Opening shared memory device %s\n", memdevice);
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if ((memfd = open(memdevice, O_RDWR)) < 0) {
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warn("failed to open memory device %s", memdevice);
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return(-1);
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}
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/*
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* Before starting the download must tell driver that we are about to
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* stop its slave. This is only important if it is already running.
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* Once we have told the driver its stopped then do a hardware reset
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* on it, to get it into a known state.
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*/
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if (verbose)
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printf("Stoping any current slave\n");
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if (ioctl(memfd, STL_BSTOP, 0) < 0) {
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warn("ioctl(STL_BSTOP)");
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return(-1);
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}
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if (verbose)
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printf("Reseting the board\n");
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if (ioctl(memfd, STL_BRESET, 0) < 0) {
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warn("ioctl(STL_BRESET)");
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return(-1);
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}
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if (reset)
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return(0);
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/*
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* After reseting the board we need to send an interrupt to the older
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* board types to get them to become active. Do that now.
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*/
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if (verbose)
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printf("Interrupting board to activate shared memory\n");
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if (ioctl(memfd, STL_BINTR, 0) < 0) {
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warn("ioctl(STL_BINTR)");
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return(-1);
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}
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/*sleep(1);*/
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if (verbose)
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printf("Opening slave image file %s\n", image);
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if ((ifd = open(image, O_RDONLY)) < 0) {
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warn("failed to open image file %s", image);
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return(-1);
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}
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/*
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* At this point get the signature of the board from the shared memory.
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* Do a double check that it is a board we know about. We will also need
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* to calculate the number of ports on this board (to use later).
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*/
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sigok = 0;
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if (verbose)
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printf("Reading ROM signature from board\n");
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if (lseek(memfd, CDK_SIGADDR, SEEK_SET) != CDK_SIGADDR) {
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warn("lseek(%x) failed on memory file", CDK_FEATADDR);
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return(-1);
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}
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if (read(memfd, &ecpsig, sizeof(cdkecpsig_t)) < 0) {
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warn("read of ROM signature failed");
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return(-1);
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}
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if (ecpsig.magic == ECP_MAGIC) {
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nrdevs = ecpfindports(&ecpsig);
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if (nrdevs < 0)
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return(-1);
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sigok++;
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}
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if (lseek(memfd, CDK_SIGADDR, SEEK_SET) != CDK_SIGADDR) {
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warn("lseek(%x) failed on memory file", CDK_FEATADDR);
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return(-1);
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}
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if (read(memfd, &onbsig, sizeof(cdkonbsig_t)) < 0) {
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warn("read of ROM signature failed");
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return(-1);
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}
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if ((onbsig.magic0 == ONB_MAGIC0) && (onbsig.magic1 == ONB_MAGIC1) &&
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(onbsig.magic2 == ONB_MAGIC2) &&
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(onbsig.magic3 == ONB_MAGIC3)) {
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nrdevs = onbfindports(&onbsig);
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if (nrdevs < 0)
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return(-1);
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sigok++;
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}
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if (! sigok) {
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warnx("unknown signature from board");
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return(-1);
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}
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if (verbose)
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printf("Board signature reports %d ports\n", nrdevs);
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/*
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* Start to copy the image file into shared memory. The first thing to
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* do is copy the vector region in from shared memory address 0. We will
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* then skip over the signature and feature area and start copying the
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* actual image data and code from 4k upwards.
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*/
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if (verbose)
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printf("Copying vector table into shared memory\n");
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if ((n = read(ifd, buf, CDK_SIGADDR)) < 0) {
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warn("read of image file failed");
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return(-1);
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}
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if (lseek(memfd, 0, SEEK_SET) != 0) {
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warn("lseek(%x) failed on memory file", CDK_FEATADDR);
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return(-1);
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}
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if (write(memfd, buf, n) < 0) {
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warn("write to memory device failed");
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return(-1);
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}
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if (lseek(ifd, 0x1000, SEEK_SET) != 0x1000) {
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warn("lseek(%x) failed on image file", CDK_FEATADDR);
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return(-1);
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}
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if (lseek(memfd, 0x1000, SEEK_SET) != 0x1000) {
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warn("lseek(%x) failed on memory device", CDK_FEATADDR);
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return(-1);
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}
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/*
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* Copy buffer size chunks of data from the image file into shared memory.
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*/
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do {
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if ((n = read(ifd, buf, BUFSIZE)) < 0) {
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warn("read of image file failed");
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return(-1);
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}
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if (write(memfd, buf, n) < 0) {
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warn("write to memory device failed");
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return(-1);
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}
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} while (n == BUFSIZE);
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close(ifd);
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/*
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* We need to down load the start up parameters for the slave. This is
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* done via the feature area of shared memory. Think of the feature area
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* as a way of passing "command line" arguments to the slave.
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* FIX: should do something here to load "brdspec" as well...
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*/
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feature.nrdevs = nrdevs;
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if (verbose)
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printf("Loading features into shared memory\n");
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if (lseek(memfd, CDK_FEATADDR, SEEK_SET) != CDK_FEATADDR) {
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warn("lseek(%x) failed on memory device", CDK_FEATADDR);
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return(-1);
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}
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if (write(memfd, &feature, sizeof(cdkfeature_t)) < 0) {
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warn("write to memory device failed");
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return(-1);
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}
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/*
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* Wait for board alive marker to be set. The slave image will set the
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* byte at address CDK_RDYADDR to 0x13 after it has successfully started.
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* If this doesn't happen we timeout and fail.
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*/
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if (verbose)
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printf("Setting alive marker to 0\n");
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if (lseek(memfd, CDK_RDYADDR, SEEK_SET) != CDK_RDYADDR) {
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warn("lseek(%x) failed on memory device", CDK_RDYADDR);
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return(-1);
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}
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alivemarker = 0;
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if (write(memfd, &alivemarker, 1) < 0) {
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warn("write to memory device failed");
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return(-1);
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}
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/*
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* At this point the entire image is loaded into shared memory. To start
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* it executiong we poke the board with an interrupt.
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*/
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if (verbose)
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printf("Interrupting board to start slave image\n");
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if (ioctl(memfd, STL_BINTR, 0) < 0) {
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warn("ioctl(STL_BINTR) failed");
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return(-1);
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}
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strttime = time((time_t *) NULL);
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if (verbose)
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printf("Waiting for slave alive marker, time=%x timeout=%d\n",
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strttime, TIMEOUT);
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while (time((time_t *) NULL) < (strttime + TIMEOUT)) {
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if (lseek(memfd, CDK_RDYADDR, SEEK_SET) != CDK_RDYADDR) {
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warn("lseek(%x) failed on memory device", CDK_RDYADDR);
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return(-1);
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}
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if (read(memfd, &alivemarker, 1) < 0){
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warn("read of image file failed");
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return(-1);
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}
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if (alivemarker == CDK_ALIVEMARKER)
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break;
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}
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if (alivemarker != CDK_ALIVEMARKER) {
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warnx("slave image failed to start");
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return(-1);
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}
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if (lseek(memfd, CDK_RDYADDR, SEEK_SET) != CDK_RDYADDR) {
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warn("lseek(%x) failed on memory device", CDK_RDYADDR);
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return(-1);
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}
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alivemarker = 0;
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if (write(memfd, &alivemarker, 1) < 0) {
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warn("write to memory device failed");
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return(-1);
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}
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if (verbose)
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printf("Slave image started successfully\n");
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/*
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* The last thing to do now is to get the driver started. Now that the
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* slave is operational it must read in the memory map and gets its
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* internal tables initialized.
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*/
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if (verbose)
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printf("Driver initializing host shared memory interface\n");
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if (ioctl(memfd, STL_BSTART, 0) < 0) {
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warn("ioctl(STL_BSTART) failed");
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return(-1);
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}
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close(memfd);
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return(0);
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}
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/*****************************************************************************/
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void main(int argc, char *argv[])
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{
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struct stat statinfo;
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int c;
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while ((c = getopt(argc, argv, "hvVRB:i:b:c:t:r:")) != -1) {
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switch (c) {
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case 'V':
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printf("stlload version %s\n", version);
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exit(0);
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break;
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case 'B':
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feature.banner = atol(optarg);
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break;
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case 'h':
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usage();
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break;
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case 'v':
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verbose++;
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break;
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case 'i':
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image = optarg;
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break;
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case 'R':
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reset++;
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break;
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case 'b':
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brdnr = atoi(optarg);
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break;
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case 'c':
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memdevice = optarg;
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break;
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case 't':
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feature.txrqsize = atol(optarg);
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break;
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case 'r':
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feature.rxrqsize = atol(optarg);
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break;
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case '?':
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default:
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usage();
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break;
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}
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}
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if (memdevice == (char *) NULL) {
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if ((brdnr < 0) || (brdnr >= 8))
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errx(1, "invalid board number %d specified", brdnr);
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sprintf(devstr, defdevice, brdnr);
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memdevice = &devstr[0];
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if (verbose)
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printf("Using shared memory device %s\n", memdevice);
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}
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if (verbose)
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printf("Downloading image %s to board %d\n", image, brdnr);
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/*
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* Check that the shared memory device exits and is a character device.
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*/
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if (stat(memdevice, &statinfo) < 0)
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errx(1, "memory device %s does not exist", memdevice);
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if ((statinfo.st_mode & S_IFMT) != S_IFCHR)
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errx(1, "memory device %s is not a char device", memdevice);
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if (stat(image, &statinfo) < 0)
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errx(1, "image file %s does not exist", image);
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/*
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* All argument checking is now done. So lets get this show on the road.
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*/
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if (download() < 0)
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exit(1);
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exit(0);
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}
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/*****************************************************************************/
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