2 * The PCI Library -- Reading of Bus Dumps
4 * Copyright (c) 1997--2005 Martin Mares <mj@ucw.cz>
6 * Can be freely distributed and used under the terms of the GNU GPL.
22 dump_detect(struct pci_access *a)
24 return !!a->method_params[PCI_ACCESS_DUMP];
28 dump_alloc_data(struct pci_dev *dev, int len)
30 struct dump_data *dd = pci_malloc(dev->access, sizeof(struct dump_data) + len - 1);
33 memset(dd->data, 0xff, len);
38 dump_validate(char *s, char *fmt)
42 if (*fmt == '#' ? !isxdigit(*s) : *fmt != *s)
50 dump_init(struct pci_access *a)
52 char *name = a->method_params[PCI_ACCESS_DUMP];
55 struct pci_dev *dev = NULL;
56 int len, mn, bn, dn, fn, i, j;
59 a->error("dump: File name not given.");
60 if (!(f = fopen(name, "r")))
61 a->error("dump: Cannot open %s: %s", name, strerror(errno));
62 while (fgets(buf, sizeof(buf)-1, f))
64 char *z = strchr(buf, '\n');
66 a->error("dump: line too long or unterminated");
68 if (z >= buf && *z == '\r')
72 if (dump_validate(buf, "##:##.# ") && sscanf(buf, "%x:%x.%d", &bn, &dn, &fn) == 3 ||
73 dump_validate(buf, "####:##:##.# ") && sscanf(buf, "%x:%x:%x.%d", &mn, &bn, &dn, &fn) == 4)
75 dev = pci_get_dev(a, mn, bn, dn, fn);
76 dump_alloc_data(dev, 256);
82 (dump_validate(buf, "##: ") || dump_validate(buf, "###: ")) &&
83 sscanf(buf, "%x: ", &i) == 1)
85 struct dump_data *dd = dev->aux;
86 z = strchr(buf, ' ') + 1;
87 while (isxdigit(z[0]) && isxdigit(z[1]) && (!z[2] || z[2] == ' ') &&
88 sscanf(z, "%x", &j) == 1 && j < 256)
91 a->error("dump: At most 4096 bytes of config space are supported");
92 if (i >= dd->allocated) /* Need to re-allocate the buffer */
94 dump_alloc_data(dev, 4096);
95 memcpy(((struct dump_data *) dev->aux)->data, dd->data, 256);
107 a->error("dump: Malformed line");
113 dump_cleanup(struct pci_access *a UNUSED)
118 dump_scan(struct pci_access *a UNUSED)
123 dump_read(struct pci_dev *d, int pos, byte *buf, int len)
125 struct dump_data *dd;
128 struct pci_dev *e = d->access->devices;
129 while (e && (e->domain != d->domain || e->bus != d->bus || e->dev != d->dev || e->func != d->func))
135 if (pos + len > dd->len)
137 memcpy(buf, dd->data + pos, len);
142 dump_write(struct pci_dev *d UNUSED, int pos UNUSED, byte *buf UNUSED, int len UNUSED)
144 d->access->error("Writing to dump files is not supported.");
149 dump_cleanup_dev(struct pci_dev *d)
158 struct pci_methods pm_dump = {
165 pci_generic_fill_info,