180 lines
4.2 KiB
C
180 lines
4.2 KiB
C
#ifdef HAVE_XORG_CONFIG_H
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#include <xorg-config.h>
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#endif
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#ifdef XSERVER_PLATFORM_BUS
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#include <xf86drm.h>
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#include <fcntl.h>
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#include <unistd.h>
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/* Linux platform device support */
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#include "xf86_OSproc.h"
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#include "xf86.h"
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#include "xf86platformBus.h"
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#include "xf86Bus.h"
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#include "hotplug.h"
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static Bool
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get_drm_info(struct OdevAttributes *attribs, char *path)
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{
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drmSetVersion sv;
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char *buf;
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int fd;
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fd = open(path, O_RDWR, O_CLOEXEC);
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if (fd == -1)
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return FALSE;
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sv.drm_di_major = 1;
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sv.drm_di_minor = 4;
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sv.drm_dd_major = -1; /* Don't care */
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sv.drm_dd_minor = -1; /* Don't care */
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if (drmSetInterfaceVersion(fd, &sv)) {
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ErrorF("setversion 1.4 failed\n");
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return FALSE;
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}
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xf86_add_platform_device(attribs);
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buf = drmGetBusid(fd);
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xf86_add_platform_device_attrib(xf86_num_platform_devices - 1,
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ODEV_ATTRIB_BUSID, buf);
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drmFreeBusid(buf);
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close(fd);
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return TRUE;
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}
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Bool
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xf86PlatformDeviceCheckBusID(struct xf86_platform_device *device, const char *busid)
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{
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struct OdevAttribute *attrib;
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const char *syspath = NULL;
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BusType bustype;
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const char *id;
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xorg_list_for_each_entry(attrib, &device->attribs->list, member) {
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if (attrib->attrib_id == ODEV_ATTRIB_SYSPATH) {
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syspath = attrib->attrib_name;
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break;
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}
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}
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if (!syspath)
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return FALSE;
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bustype = StringToBusType(busid, &id);
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if (bustype == BUS_PCI) {
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struct pci_device *pPci = device->pdev;
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if (xf86ComparePciBusString(busid,
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((pPci->domain << 8)
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| pPci->bus),
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pPci->dev, pPci->func)) {
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return TRUE;
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}
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}
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else if (bustype == BUS_PLATFORM) {
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/* match on the minimum string */
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int len = strlen(id);
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if (strlen(syspath) < strlen(id))
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len = strlen(syspath);
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if (strncmp(id, syspath, len))
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return FALSE;
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return TRUE;
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}
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return FALSE;
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}
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void
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xf86PlatformDeviceProbe(struct OdevAttributes *attribs)
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{
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struct OdevAttribute *attrib;
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int i;
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char *path = NULL;
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Bool ret;
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xorg_list_for_each_entry(attrib, &attribs->list, member) {
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if (attrib->attrib_id == ODEV_ATTRIB_PATH) {
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path = attrib->attrib_name;
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break;
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}
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}
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if (!path)
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goto out_free;
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for (i = 0; i < xf86_num_platform_devices; i++) {
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char *dpath;
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dpath = xf86_get_platform_attrib(i, ODEV_ATTRIB_PATH);
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if (!strcmp(path, dpath))
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break;
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}
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if (i != xf86_num_platform_devices)
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goto out_free;
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LogMessage(X_INFO, "config/udev: Adding drm device (%s)\n",
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path);
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ret = get_drm_info(attribs, path);
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if (ret == FALSE)
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goto out_free;
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return;
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out_free:
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config_odev_free_attribute_list(attribs);
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}
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void NewGPUDeviceRequest(struct OdevAttributes *attribs)
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{
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int old_num = xf86_num_platform_devices;
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int ret;
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xf86PlatformDeviceProbe(attribs);
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if (old_num == xf86_num_platform_devices)
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return;
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ret = xf86platformAddDevice(xf86_num_platform_devices-1);
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if (ret == -1)
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xf86_remove_platform_device(xf86_num_platform_devices-1);
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ErrorF("xf86: found device %d\n", xf86_num_platform_devices);
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return;
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}
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void DeleteGPUDeviceRequest(struct OdevAttributes *attribs)
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{
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struct OdevAttribute *attrib;
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int index;
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char *syspath = NULL;
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xorg_list_for_each_entry(attrib, &attribs->list, member) {
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if (attrib->attrib_id == ODEV_ATTRIB_SYSPATH) {
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syspath = attrib->attrib_name;
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break;
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}
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}
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for (index = 0; index < xf86_num_platform_devices; index++) {
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char *dspath;
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dspath = xf86_get_platform_attrib(index, ODEV_ATTRIB_SYSPATH);
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if (!strcmp(syspath, dspath))
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break;
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}
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if (index == xf86_num_platform_devices)
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goto out;
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ErrorF("xf86: remove device %d %s\n", index, syspath);
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xf86platformRemoveDevice(index);
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out:
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config_odev_free_attribute_list(attribs);
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}
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#endif
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