/* Compute the pixel position of a progress value */
static inline int get_bar_position( PROGRESS_INFO *infoPtr, LONG style,
const RECT* rect, INT value )
{
return MulDiv (value - infoPtr->MinVal, get_bar_size (style, rect),
infoPtr->MaxVal - infoPtr->MinVal);
}
sbone_err_t sbone_dev_open_pcie
(sbone_dev_t* dev, int dom, int bus, int _dev, int fun)
{
static const size_t nbar = sizeof(dev->bar_addrs) / sizeof(dev->bar_addrs[0]);
int mem_fd;
size_t i;
struct pci_access* pci_access;
struct pci_dev* pci_dev;
int err = -1;
/* zero device */
for (i = 0; i < nbar; ++i) dev->bar_sizes[i] = 0;
dev->nid = -1;
/* find the pci device */
pci_access = pci_alloc();
if (pci_access == NULL) { PERROR(); goto on_error_0; }
pci_init(pci_access);
pci_scan_bus(pci_access);
pci_dev = pci_get_dev(pci_access, dom, bus, _dev, fun);
if (pci_dev == NULL) { PERROR(); goto on_error_1; }
pci_fill_info(pci_dev, PCI_FILL_IDENT | PCI_FILL_BASES);
/* map bars */
mem_fd = open("/dev/mem", O_RDWR | O_SYNC);
if (mem_fd == -1) { PERROR(); goto on_error_2; }
for (i = 0; i < nbar; ++i)
{
#if 1 /* FIXME: pci_dev->size[i] not detected by pci_fill_info ... */
if (pci_dev->base_addr[i] != 0)
pci_dev->size[i] = get_bar_size(pci_access, pci_dev, i);
#endif /* FIXME */
dev->bar_sizes[i] = pci_dev->size[i];
if (dev->bar_sizes[i] == 0) continue ;
dev->bar_addrs[i] = (uintptr_t)mmap
(
NULL, pci_dev->size[i],
PROT_READ | PROT_WRITE,
MAP_SHARED | MAP_NORESERVE,
mem_fd,
pci_dev->base_addr[i]
);
if (dev->bar_addrs[i] == (uintptr_t)MAP_FAILED)
{
size_t j;
for (j = 0; j < i; ++j)
munmap((void*)dev->bar_addrs[i], dev->bar_sizes[i]);
PERROR();
goto on_error_3;
}
}
if ((dev->fd = open("/dev/sbone", O_RDWR)) == -1)
{
PERROR();
goto on_error_3;
}
/* success */
err = 0;
on_error_3:
close(mem_fd);
on_error_2:
pci_free_dev(pci_dev);
on_error_1:
pci_cleanup(pci_access);
on_error_0:
return err;
}
