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Code Issues Releases Wiki Activity

moved gtfpga PCI test code

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This commit is contained in:
Steffen Vogel 2015-03-23 21:08:23 +01:00
parent 83f1021bc0
commit 8031b501d5
1 changed files with 0 additions and 76 deletions
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76
gtfpga/main.c
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@ -1,76 +0,0 @@
#include <stdio.h>
#include <dirent.h>
#include <errno.h>
#include <sys/mman.h>
#include <fcntl.h>
#include <pci/pci.h>
#define SYSFS_PATH "/sys/bus/pci"
#define GTFPGA_DID 0x10f5
#define GTFPGA_VID 0x8086
int main(int argc, char *argv[])
{
struct pci_access *pacc;
struct pci_dev *dev;
struct pci_filter filter;
unsigned int c;
char namebuf[1024], *name;
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.vendor = GTFPGA_VID;
filter.device = GTFPGA_DID;
for (dev = pacc->devices; dev; dev = dev->next) { /* Iterate over all devices */
if (pci_filter_match(&filter, dev))
break;
}
pci_fill_info(dev, PCI_FILL_IDENT | PCI_FILL_BASES | PCI_FILL_CLASS); /* Fill in header info we need */
c = pci_read_byte(dev, PCI_INTERRUPT_PIN); /* Read config register directly */
printf("%04x:%02x:%02x.%d vendor=%04x device=%04x class=%04x irq=%d (pin %d)",
dev->domain, dev->bus, dev->dev, dev->func, dev->vendor_id, dev->device_id,
dev->device_class, dev->irq, c);
/* Look up and print the full name of the device */
printf(" (%s)\n", pci_lookup_name(pacc, namebuf, sizeof(namebuf), PCI_LOOKUP_DEVICE, dev->vendor_id, dev->device_id));
for (int i = 0; i< 6; i++) {
printf("base_addr[%u] = %#lx, size = %#lx\n", i,
dev->base_addr[i],
dev->size[i]);
}
int fd = open("/dev/mem", O_RDWR);
if (!fd)
perror("Failed open(): ");
void *map = mmap(NULL, dev->size[0], PROT_READ | PROT_WRITE, MAP_SHARED, fd, dev->base_addr[0]);
if (map == MAP_FAILED)
perror("Failed mmap(): ");
for (int i = 0; i < 100; i++) {
unsigned char *p = map + i;
printf("%02hx ", *p);
if (i % 32 == 31)
printf("\n");
}
getchar();
munmap(map, dev->size[0]);
pci_cleanup(pacc); /* Close everything */
return 0;
}