diff options
Diffstat (limited to 'pci.c')
| -rw-r--r-- | pci.c | 100 |
1 files changed, 50 insertions, 50 deletions
@@ -7,68 +7,68 @@ #include "common.h" static int pci_find_modules(struct pciusb_entries entries, int no_subid) { - return pciusb_find_modules(entries, "pcitable", no_subid); + return pciusb_find_modules(entries, "pcitable", no_subid); } extern struct pciusb_entries pci_probe(int probe_type) { - FILE *f; - char buf[512]; - unsigned short devbusfn; - unsigned int id; - struct pciusb_entry t[100]; - struct pciusb_entries r; + FILE *f; + char buf[512]; + unsigned short devbusfn; + unsigned int id; + struct pciusb_entry t[100]; + struct pciusb_entries r; - if (!(f = fopen("/proc/bus/pci/devices", "r"))) exit(1); + if (!(f = fopen("/proc/bus/pci/devices", "r"))) exit(1); - for (r.nb = 0; fgets(buf, sizeof(buf) - 1, f) && r.nb < psizeof(t); r.nb++) { - struct pciusb_entry e; - pciusb_initialize(&e); + for (r.nb = 0; fgets(buf, sizeof(buf) - 1, f) && r.nb < psizeof(t); r.nb++) { + struct pciusb_entry e; + pciusb_initialize(&e); - sscanf(buf, "%hx %x", &devbusfn, &id); - e.vendor = id >> 16; - e.device = id & 0xffff; - e.pci_bus = devbusfn >> 8; - e.pci_device = (devbusfn & 0xff) >> 3; - e.pci_function = (devbusfn & 0xff) & 0x07; - { - char file[25]; - FILE *f; - snprintf(file, sizeof(file), "/proc/bus/pci/%02x/%02x.%d", e.pci_bus, e.pci_device, e.pci_function); - if (probe_type == 1 && (f = fopen(file, "r"))) { - if (fseek(f, 10, SEEK_SET) == 0) - fread(&e.class_, 2, 1, f); - if (fseek(f, 0x2c, SEEK_SET) == 0) - fread(&e.subvendor, 2, 1, f), fread(&e.subdevice, 2, 1, f); + sscanf(buf, "%hx %x", &devbusfn, &id); + e.vendor = id >> 16; + e.device = id & 0xffff; + e.pci_bus = devbusfn >> 8; + e.pci_device = (devbusfn & 0xff) >> 3; + e.pci_function = (devbusfn & 0xff) & 0x07; + { + char file[25]; + FILE *f; + snprintf(file, sizeof(file), "/proc/bus/pci/%02x/%02x.%d", e.pci_bus, e.pci_device, e.pci_function); + if (probe_type == 1 && (f = fopen(file, "r"))) { + if (fseek(f, 10, SEEK_SET) == 0) + fread(&e.class_, 2, 1, f); + if (fseek(f, 0x2c, SEEK_SET) == 0) + fread(&e.subvendor, 2, 1, f), fread(&e.subdevice, 2, 1, f); - if ((e.subvendor == 0 && e.subdevice == 0) || - (e.subvendor == e.vendor && e.subdevice == e.device)) { - e.subvendor = 0xffff; - e.subdevice = 0xffff; - } + if ((e.subvendor == 0 && e.subdevice == 0) || + (e.subvendor == e.vendor && e.subdevice == e.device)) { + e.subvendor = 0xffff; + e.subdevice = 0xffff; + } - if (fseek(f, 9, SEEK_SET) == 0) { - unsigned char class_prog = 0; - fread(&class_prog, 1, 1, f); - if (e.class_ == PCI_CLASS_SERIAL_USB) { - /* taken from kudzu's pci.c */ - e.module = strdup(class_prog == 0 ? "usb-uhci" : "usb-ohci"); - } - } + if (fseek(f, 9, SEEK_SET) == 0) { + unsigned char class_prog = 0; + fread(&class_prog, 1, 1, f); + if (e.class_ == PCI_CLASS_SERIAL_USB) { + /* taken from kudzu's pci.c */ + e.module = strdup(class_prog == 0 ? "usb-uhci" : "usb-ohci"); + } + } + fclose(f); + } + } + t[r.nb] = e; + } fclose(f); - } - } - t[r.nb] = e; - } - fclose(f); - r.entries = memdup(t, sizeof(struct pciusb_entry) * r.nb); + r.entries = memdup(t, sizeof(struct pciusb_entry) * r.nb); - if (pci_find_modules(r, probe_type)) return r; + if (pci_find_modules(r, probe_type)) return r; - /* ok, let's try again with subids */ - if (probe_type == 0) return pci_probe(1); + /* ok, let's try again with subids */ + if (probe_type == 0) return pci_probe(1); - /* should not happen */ - exit(1); + /* should not happen */ + exit(1); } |