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68720c7bed
It was easy because 1) flashrom has now nice API 2) documentation is public on the web site Corresponding to flashrom svn r527. Signed-off-by: Rudolf Marek <r.marek@assembler.cz> Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
121 lines
3.4 KiB
C
121 lines
3.4 KiB
C
/*
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* This file is part of the flashrom project.
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*
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* Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <errno.h>
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#include "flash.h"
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uint32_t io_base_addr;
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struct pci_access *pacc;
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struct pci_filter filter;
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char *pcidev_bdf = NULL;
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struct pci_dev *pcidev_dev = NULL;
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uint32_t pcidev_validate(struct pci_dev *dev, struct pcidev_status *devs)
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{
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int i;
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uint32_t addr;
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for (i = 0; devs[i].device_name != NULL; i++) {
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if (dev->device_id != devs[i].device_id)
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continue;
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/* Don't use dev->base_addr[0], won't work on older libpci. */
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addr = pci_read_long(dev, PCI_IO_BASE_ADDRESS) & ~0x03;
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printf("Found \"%s %s\" (%04x:%04x, BDF %02x:%02x.%x)\n",
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devs[i].vendor_name, devs[i].device_name, dev->vendor_id,
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dev->device_id, dev->bus, dev->dev, dev->func);
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if (devs[i].status == PCI_NT) {
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printf("===\nThis PCI device is UNTESTED. Please email "
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"a report including the 'flashrom -p xxxxxx'\n"
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"output to flashrom@coreboot.org if it works "
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"for you. Thank you for your help!\n===\n");
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}
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return addr;
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}
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return 0;
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}
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uint32_t pcidev_init(uint16_t vendor_id, struct pcidev_status *devs)
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{
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struct pci_dev *dev;
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char *msg = NULL;
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int found = 0;
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uint32_t addr = 0, curaddr = 0;
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pacc = pci_alloc(); /* Get the pci_access structure */
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pci_init(pacc); /* Initialize the PCI library */
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pci_scan_bus(pacc); /* We want to get the list of devices */
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pci_filter_init(pacc, &filter);
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/* Filter by vendor and also bb:dd.f (if supplied by the user). */
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filter.vendor = vendor_id;
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if (pcidev_bdf != NULL) {
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if ((msg = pci_filter_parse_slot(&filter, pcidev_bdf))) {
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fprintf(stderr, "Error: %s\n", msg);
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exit(1);
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}
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}
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for (dev = pacc->devices; dev; dev = dev->next) {
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if (pci_filter_match(&filter, dev)) {
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if ((addr = pcidev_validate(dev, devs)) != 0) {
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curaddr = addr;
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pcidev_dev = dev;
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found++;
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}
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}
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}
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/* Only continue if exactly one supported PCI dev has been found. */
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if (found == 0) {
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fprintf(stderr, "Error: No supported PCI device found.\n");
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exit(1);
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} else if (found > 1) {
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fprintf(stderr, "Error: Multiple supported PCI devices found. "
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"Please use 'flashrom -p xxxxxx=bb:dd.f' \n"
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"to explicitly select the card with the given BDF "
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"(PCI bus, device, function).\n");
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exit(1);
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}
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return curaddr;
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}
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void print_supported_pcidevs(struct pcidev_status *devs)
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{
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int i;
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for (i = 0; devs[i].vendor_name != NULL; i++) {
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printf("%s %s [%02x:%02x]%s\n", devs[i].vendor_name,
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devs[i].device_name, devs[i].vendor_id,
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devs[i].device_id,
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(devs[i].status == PCI_NT) ? " (untested)" : "");
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}
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}
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