/* *	$Id: dump.c,v 1.1 1999/01/22 21:05:20 mj Exp $ * *	The PCI Library -- Reading of Bus Dumps * *	Copyright (c) 1997--1999 Martin Mares <mj@atrey.karlin.mff.cuni.cz> * *	Can be freely distributed and used under the terms of the GNU GPL. */#include <stdio.h>#include <ctype.h>#include <string.h>#include <errno.h>#include "internal.h"static intdump_detect(struct pci_access *a){  return !!a->method_params[PCI_ACCESS_DUMP];}static voiddump_init(struct pci_access *a){  char *name = a->method_params[PCI_ACCESS_DUMP];  FILE *f;  char buf[256];  struct pci_dev *dev = NULL;  int len, bn, dn, fn, i, j;  if (!a)    a->error("dump: File name not given.");  if (!(f = fopen(name, "r")))    a->error("dump: Cannot open %s: %s", name, strerror(errno));  while (fgets(buf, sizeof(buf)-1, f))    {      char *z = strchr(buf, '\n');      if (!z)	a->error("dump: line too long or unterminated");      *z-- = 0;      if (z >= buf && *z == '\r')	*z-- = 0;      len = z - buf + 1;      if (len >= 8 && buf[2] == ':' && buf[5] == '.' && buf[7] == ' ' &&	  sscanf(buf, "%x:%x.%d ", &bn, &dn, &fn) == 3)	{	  dev = pci_get_dev(a, bn, dn, fn);	  dev->aux = pci_malloc(a, 256);	  memset(dev->aux, 0xff, 256);	  pci_link_dev(a, dev);	}      else if (!len)	dev = NULL;      else if (dev && len >= 51 && buf[2] == ':' && buf[3] == ' ' &&	       sscanf(buf, "%x: ", &i) == 1)	{	  z = buf+3;	  while (isspace(z[0]) && isxdigit(z[1]) && isxdigit(z[2]))	    {	      z++;	      if (sscanf(z, "%x", &j) != 1 || i >= 256)		a->error("dump: Malformed line");	      ((byte *) dev->aux)[i++] = j;	      z += 2;	    }	}    }}static voiddump_cleanup(struct pci_access * UNUSED a){}static voiddump_scan(struct pci_access * UNUSED a){}static intdump_read(struct pci_dev *d, int pos, byte *buf, int len){  if (!d->aux)    {      struct pci_dev *e = d->access->devices;      while (e && (e->bus != d->bus || e->dev != d->dev || e->func != d->func))	e = e->next;      if (e)	d = e;      else	return 0;    }  memcpy(buf, (byte *) d->aux + pos, len);  return 1;}static intdump_write(struct pci_dev * UNUSED d, int UNUSED pos, byte * UNUSED buf, int UNUSED len){  d->access->error("Writing to dump files is not supported.");  return 0;}static voiddump_cleanup_dev(struct pci_dev *d){  if (d->aux)    {      pci_mfree(d->aux);      d->aux = NULL;    }}struct pci_methods pm_dump = {  "dump",  NULL,					/* config */  dump_detect,  dump_init,  dump_cleanup,  dump_scan,  pci_generic_fill_info,  dump_read,  dump_write,  NULL,					/* init_dev */  dump_cleanup_dev};