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mirror of https://review.coreboot.org/flashrom.git synced 2025-04-27 07:02:34 +02:00
flashrom/pcidev.c
Uwe Hermann 2bc98f6c91 Add initial support for flashing some NVIDIA graphics cards
The new option is '-p gfxnvidia', rest of the interface is as usual.

I tested a successful identify and read on a "RIVA TNT2 Model 64/Model 64 Pro"
card for now, erase and write did NOT work properly so far!

Please do not attempt to write/erase cards yet, unless you can recover!

In addition to the NVIDIA handling code it was required to call
programmer_shutdown() in a lot more places, otherwise the graphics card
will be disabled in the init function, but never enabled again as the
shutdown function is not called.
The shutdown handling may be changed to use atexit() later.

Corresponding to flashrom svn r737.

Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Luc Verhaegen <libv@skynet.be>
2009-09-30 18:29:55 +00:00

123 lines
3.4 KiB
C

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