diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/Makefile | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_stub.c | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/drm_usb.c | 117 |
3 files changed, 119 insertions, 1 deletions
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index d9cb3e3..89cf05a 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -12,7 +12,7 @@ drm-y := drm_auth.o drm_buffer.o drm_bufs.o drm_cache.o \ drm_platform.o drm_sysfs.o drm_hashtab.o drm_sman.o drm_mm.o \ drm_crtc.o drm_modes.o drm_edid.o \ drm_info.o drm_debugfs.o drm_encoder_slave.o \ - drm_trace_points.o drm_global.o + drm_trace_points.o drm_global.o drm_usb.o drm-$(CONFIG_COMPAT) += drm_ioc32.o diff --git a/drivers/gpu/drm/drm_stub.c b/drivers/gpu/drm/drm_stub.c index 0bf2c77..001273d 100644 --- a/drivers/gpu/drm/drm_stub.c +++ b/drivers/gpu/drm/drm_stub.c @@ -463,6 +463,7 @@ void drm_put_dev(struct drm_device *dev) drm_put_minor(&dev->primary); + list_del(&dev->driver_item); if (dev->devname) { kfree(dev->devname); dev->devname = NULL; diff --git a/drivers/gpu/drm/drm_usb.c b/drivers/gpu/drm/drm_usb.c new file mode 100644 index 0000000..206d230 --- /dev/null +++ b/drivers/gpu/drm/drm_usb.c @@ -0,0 +1,117 @@ +#include "drmP.h" +#include <linux/usb.h> + +#ifdef CONFIG_USB +int drm_get_usb_dev(struct usb_interface *interface, + const struct usb_device_id *id, + struct drm_driver *driver) +{ + struct drm_device *dev; + struct usb_device *usbdev; + int ret; + + DRM_DEBUG("\n"); + + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) + return -ENOMEM; + + usbdev = interface_to_usbdev(interface); + dev->usbdev = usbdev; + dev->dev = &usbdev->dev; + + mutex_lock(&drm_global_mutex); + + ret = drm_fill_in_dev(dev, NULL, driver); + if (ret) { + printk(KERN_ERR "DRM: Fill_in_dev failed.\n"); + goto err_g1; + } + + usb_set_intfdata(interface, dev); + ret = drm_get_minor(dev, &dev->control, DRM_MINOR_CONTROL); + if (ret) + goto err_g1; + + ret = drm_get_minor(dev, &dev->primary, DRM_MINOR_LEGACY); + if (ret) + goto err_g2; + + if (dev->driver->load) { + ret = dev->driver->load(dev, 0); + if (ret) + goto err_g3; + } + + /* setup the grouping for the legacy output */ + ret = drm_mode_group_init_legacy_group(dev, + &dev->primary->mode_group); + if (ret) + goto err_g3; + + list_add_tail(&dev->driver_item, &driver->device_list); + + mutex_unlock(&drm_global_mutex); + + DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n", + driver->name, driver->major, driver->minor, driver->patchlevel, + driver->date, dev->primary->index); + + return 0; + +err_g3: + drm_put_minor(&dev->primary); +err_g2: + drm_put_minor(&dev->control); +err_g1: + kfree(dev); + mutex_unlock(&drm_global_mutex); + return ret; + +} +EXPORT_SYMBOL(drm_get_usb_dev); + +static int drm_usb_get_irq(struct drm_device *dev) +{ + return 0; +} + +static const char *drm_usb_get_name(struct drm_device *dev) +{ + return "USB"; +} + +static int drm_usb_set_busid(struct drm_device *dev, + struct drm_master *master) +{ + return 0; +} + +static struct drm_bus drm_usb_bus = { + .bus_type = DRIVER_BUS_USB, + .get_irq = drm_usb_get_irq, + .get_name = drm_usb_get_name, + .set_busid = drm_usb_set_busid, +}; + +int drm_usb_init(struct drm_driver *driver, struct usb_driver *udriver) +{ + int res; + DRM_DEBUG("\n"); + + INIT_LIST_HEAD(&driver->device_list); + driver->kdriver.usb = udriver; + driver->bus = &drm_usb_bus; + + res = usb_register(udriver); + return res; +} +EXPORT_SYMBOL(drm_usb_init); + +void drm_usb_exit(struct drm_driver *driver, + struct usb_driver *udriver) +{ + usb_deregister(udriver); +} +EXPORT_SYMBOL(drm_usb_exit); +#endif |