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#include <stdio.h>
#include <string.h>
#include <libudev.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "egl_dri2.h"
#define DRIVER_MAP_DRI2_ONLY
#include "pci_ids/pci_id_driver_map.h"
static struct udev_device *
dri2_udev_device_new_from_fd(struct udev *udev, int fd)
{
struct udev_device *device;
struct stat buf;
if (fstat(fd, &buf) < 0) {
_eglLog(_EGL_WARNING, "EGL-DRI2: failed to stat fd %d", fd);
return NULL;
}
device = udev_device_new_from_devnum(udev, 'c', buf.st_rdev);
if (device == NULL) {
_eglLog(_EGL_WARNING,
"EGL-DRI2: could not create udev device for fd %d", fd);
return NULL;
}
return device;
}
char *
dri2_get_device_name_for_fd(int fd)
{
struct udev *udev;
struct udev_device *device;
const char *const_device_name;
char *device_name = NULL;
udev = udev_new();
device = dri2_udev_device_new_from_fd(udev, fd);
if (device == NULL)
return NULL;
const_device_name = udev_device_get_devnode(device);
if (!const_device_name)
goto out;
device_name = strdup(const_device_name);
out:
udev_device_unref(device);
udev_unref(udev);
return device_name;
}
char *
dri2_get_driver_for_fd(int fd)
{
struct udev *udev;
struct udev_device *device, *parent;
const char *pci_id;
char *driver = NULL;
int vendor_id, chip_id, i, j;
udev = udev_new();
device = dri2_udev_device_new_from_fd(udev, fd);
if (device == NULL)
return NULL;
parent = udev_device_get_parent(device);
if (parent == NULL) {
_eglLog(_EGL_WARNING, "DRI2: could not get parent device");
goto out;
}
pci_id = udev_device_get_property_value(parent, "PCI_ID");
if (pci_id == NULL ||
sscanf(pci_id, "%x:%x", &vendor_id, &chip_id) != 2) {
_eglLog(_EGL_WARNING, "EGL-DRI2: malformed or no PCI ID");
goto out;
}
for (i = 0; driver_map[i].driver; i++) {
if (vendor_id != driver_map[i].vendor_id)
continue;
if (driver_map[i].num_chips_ids == -1) {
driver = strdup(driver_map[i].driver);
_eglLog(_EGL_DEBUG, "pci id for %d: %04x:%04x, driver %s",
fd, vendor_id, chip_id, driver);
goto out;
}
for (j = 0; j < driver_map[i].num_chips_ids; j++)
if (driver_map[i].chip_ids[j] == chip_id) {
driver = strdup(driver_map[i].driver);
_eglLog(_EGL_DEBUG, "pci id for %d: %04x:%04x, driver %s",
fd, vendor_id, chip_id, driver);
goto out;
}
}
out:
udev_device_unref(device);
udev_unref(udev);
return driver;
}
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