<title>Device Registration</title>
<para>
A number of functions are provided to help with device registration.
- The functions deal with PCI, USB and platform devices, respectively.
+ The functions deal with PCI and platform devices, respectively.
</para>
!Edrivers/gpu/drm/drm_pci.c
-!Edrivers/gpu/drm/drm_usb.c
!Edrivers/gpu/drm/drm_platform.c
<para>
New drivers that no longer rely on the services provided by the
bool
depends on DRM
-config DRM_USB
- tristate
- depends on DRM
- depends on USB_SUPPORT && USB_ARCH_HAS_HCD
- select USB
-
config DRM_KMS_HELPER
tristate
depends on DRM
drm-$(CONFIG_DRM_PANEL) += drm_panel.o
drm-$(CONFIG_OF) += drm_of.o
-drm-usb-y := drm_usb.o
-
drm_kms_helper-y := drm_crtc_helper.o drm_dp_helper.o drm_probe_helper.o \
drm_plane_helper.o drm_dp_mst_topology.o
drm_kms_helper-$(CONFIG_DRM_LOAD_EDID_FIRMWARE) += drm_edid_load.o
obj-$(CONFIG_DRM) += drm.o
obj-$(CONFIG_DRM_MIPI_DSI) += drm_mipi_dsi.o
-obj-$(CONFIG_DRM_USB) += drm_usb.o
obj-$(CONFIG_DRM_TTM) += ttm/
obj-$(CONFIG_DRM_TDFX) += tdfx/
obj-$(CONFIG_DRM_R128) += r128/
+++ /dev/null
-#include <drm/drmP.h>
-#include <drm/drm_usb.h>
-#include <linux/usb.h>
-#include <linux/module.h>
-
-int drm_get_usb_dev(struct usb_interface *interface,
- const struct usb_device_id *id,
- struct drm_driver *driver)
-{
- struct drm_device *dev;
- int ret;
-
- DRM_DEBUG("\n");
-
- dev = drm_dev_alloc(driver, &interface->dev);
- if (!dev)
- return -ENOMEM;
-
- dev->usbdev = interface_to_usbdev(interface);
- usb_set_intfdata(interface, dev);
-
- ret = drm_dev_register(dev, 0);
- if (ret)
- goto err_free;
-
- 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_free:
- drm_dev_unref(dev);
- return ret;
-
-}
-EXPORT_SYMBOL(drm_get_usb_dev);
-
-/**
- * drm_usb_init - Register matching USB devices with the DRM subsystem
- * @driver: DRM device driver
- * @udriver: USB device driver
- *
- * Registers one or more devices matched by a USB driver with the DRM
- * subsystem.
- *
- * Return: 0 on success or a negative error code on failure.
- */
-int drm_usb_init(struct drm_driver *driver, struct usb_driver *udriver)
-{
- int res;
- DRM_DEBUG("\n");
-
- res = usb_register(udriver);
- return res;
-}
-EXPORT_SYMBOL(drm_usb_init);
-
-/**
- * drm_usb_exit - Unregister matching USB devices from the DRM subsystem
- * @driver: DRM device driver
- * @udriver: USB device driver
- *
- * Unregisters one or more devices matched by a USB driver from the DRM
- * subsystem.
- */
-void drm_usb_exit(struct drm_driver *driver,
- struct usb_driver *udriver)
-{
- usb_deregister(udriver);
-}
-EXPORT_SYMBOL(drm_usb_exit);
-
-MODULE_AUTHOR("David Airlie");
-MODULE_DESCRIPTION("USB DRM support");
-MODULE_LICENSE("GPL and additional rights");
config DRM_UDL
tristate "DisplayLink"
depends on DRM
+ depends on USB_SUPPORT
depends on USB_ARCH_HAS_HCD
- select DRM_USB
+ select USB
select FB_SYS_FILLRECT
select FB_SYS_COPYAREA
select FB_SYS_IMAGEBLIT
goto error;
for (i = 0; i < EDID_LENGTH; i++) {
- ret = usb_control_msg(udl->ddev->usbdev,
- usb_rcvctrlpipe(udl->ddev->usbdev, 0), (0x02),
+ ret = usb_control_msg(udl->udev,
+ usb_rcvctrlpipe(udl->udev, 0), (0x02),
(0x80 | (0x02 << 5)), i << 8, 0xA1, rbuf, 2,
HZ);
if (ret < 1) {
*/
#include <linux/module.h>
-#include <drm/drm_usb.h>
+#include <drm/drmP.h>
#include <drm/drm_crtc_helper.h>
#include "udl_drv.h"
-static struct drm_driver driver;
-
-/*
- * There are many DisplayLink-based graphics products, all with unique PIDs.
- * So we match on DisplayLink's VID + Vendor-Defined Interface Class (0xff)
- * We also require a match on SubClass (0x00) and Protocol (0x00),
- * which is compatible with all known USB 2.0 era graphics chips and firmware,
- * but allows DisplayLink to increment those for any future incompatible chips
- */
-static struct usb_device_id id_table[] = {
- {.idVendor = 0x17e9, .bInterfaceClass = 0xff,
- .bInterfaceSubClass = 0x00,
- .bInterfaceProtocol = 0x00,
- .match_flags = USB_DEVICE_ID_MATCH_VENDOR |
- USB_DEVICE_ID_MATCH_INT_CLASS |
- USB_DEVICE_ID_MATCH_INT_SUBCLASS |
- USB_DEVICE_ID_MATCH_INT_PROTOCOL,},
- {},
-};
-MODULE_DEVICE_TABLE(usb, id_table);
-
-MODULE_LICENSE("GPL");
-
static int udl_driver_set_busid(struct drm_device *d, struct drm_master *m)
{
return 0;
}
-static int udl_usb_probe(struct usb_interface *interface,
- const struct usb_device_id *id)
-{
- return drm_get_usb_dev(interface, id, &driver);
-}
-
-static void udl_usb_disconnect(struct usb_interface *interface)
-{
- struct drm_device *dev = usb_get_intfdata(interface);
-
- drm_kms_helper_poll_disable(dev);
- drm_connector_unplug_all(dev);
- udl_fbdev_unplug(dev);
- udl_drop_usb(dev);
- drm_unplug_dev(dev);
-}
-
static const struct vm_operations_struct udl_gem_vm_ops = {
.fault = udl_gem_fault,
.open = drm_gem_vm_open,
.patchlevel = DRIVER_PATCHLEVEL,
};
+static int udl_usb_probe(struct usb_interface *interface,
+ const struct usb_device_id *id)
+{
+ struct usb_device *udev = interface_to_usbdev(interface);
+ struct drm_device *dev;
+ int r;
+
+ dev = drm_dev_alloc(&driver, &interface->dev);
+ if (!dev)
+ return -ENOMEM;
+
+ r = drm_dev_register(dev, (unsigned long)udev);
+ if (r)
+ goto err_free;
+
+ usb_set_intfdata(interface, dev);
+ DRM_INFO("Initialized udl on minor %d\n", dev->primary->index);
+
+ return 0;
+
+err_free:
+ drm_dev_unref(dev);
+ return r;
+}
+
+static void udl_usb_disconnect(struct usb_interface *interface)
+{
+ struct drm_device *dev = usb_get_intfdata(interface);
+
+ drm_kms_helper_poll_disable(dev);
+ drm_connector_unplug_all(dev);
+ udl_fbdev_unplug(dev);
+ udl_drop_usb(dev);
+ drm_unplug_dev(dev);
+}
+
+/*
+ * There are many DisplayLink-based graphics products, all with unique PIDs.
+ * So we match on DisplayLink's VID + Vendor-Defined Interface Class (0xff)
+ * We also require a match on SubClass (0x00) and Protocol (0x00),
+ * which is compatible with all known USB 2.0 era graphics chips and firmware,
+ * but allows DisplayLink to increment those for any future incompatible chips
+ */
+static struct usb_device_id id_table[] = {
+ {.idVendor = 0x17e9, .bInterfaceClass = 0xff,
+ .bInterfaceSubClass = 0x00,
+ .bInterfaceProtocol = 0x00,
+ .match_flags = USB_DEVICE_ID_MATCH_VENDOR |
+ USB_DEVICE_ID_MATCH_INT_CLASS |
+ USB_DEVICE_ID_MATCH_INT_SUBCLASS |
+ USB_DEVICE_ID_MATCH_INT_PROTOCOL,},
+ {},
+};
+MODULE_DEVICE_TABLE(usb, id_table);
+
static struct usb_driver udl_driver = {
.name = "udl",
.probe = udl_usb_probe,
static int __init udl_init(void)
{
- return drm_usb_init(&driver, &udl_driver);
+ return usb_register(&udl_driver);
}
static void __exit udl_exit(void)
{
- drm_usb_exit(&driver, &udl_driver);
+ usb_deregister(&udl_driver);
}
module_init(udl_init);
module_exit(udl_exit);
+MODULE_LICENSE("GPL");
struct udl_device {
struct device *dev;
struct drm_device *ddev;
+ struct usb_device *udev;
int sku_pixel_limit;
}
unode->urb = urb;
- buf = usb_alloc_coherent(udl->ddev->usbdev, MAX_TRANSFER, GFP_KERNEL,
+ buf = usb_alloc_coherent(udl->udev, MAX_TRANSFER, GFP_KERNEL,
&urb->transfer_dma);
if (!buf) {
kfree(unode);
}
/* urb->transfer_buffer_length set to actual before submit */
- usb_fill_bulk_urb(urb, udl->ddev->usbdev, usb_sndbulkpipe(udl->ddev->usbdev, 1),
+ usb_fill_bulk_urb(urb, udl->udev, usb_sndbulkpipe(udl->udev, 1),
buf, size, udl_urb_completion, unode);
urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
int udl_driver_load(struct drm_device *dev, unsigned long flags)
{
+ struct usb_device *udev = (void*)flags;
struct udl_device *udl;
int ret = -ENOMEM;
if (!udl)
return -ENOMEM;
+ udl->udev = udev;
udl->ddev = dev;
dev->dev_private = udl;
- if (!udl_parse_vendor_descriptor(dev, dev->usbdev)) {
+ if (!udl_parse_vendor_descriptor(dev, udl->udev)) {
ret = -ENODEV;
DRM_ERROR("firmware not recognized. Assume incompatible device\n");
goto err;
#endif
struct platform_device *platformdev; /**< Platform device struture */
- struct usb_device *usbdev;
struct drm_sg_mem *sg; /**< Scatter gather memory */
unsigned int num_crtcs; /**< Number of CRTCs on this device */
+++ /dev/null
-#ifndef DRM_USB_H
-#define DRM_USB_H
-
-#include <drmP.h>
-
-#include <linux/usb.h>
-
-extern int drm_usb_init(struct drm_driver *driver, struct usb_driver *udriver);
-extern void drm_usb_exit(struct drm_driver *driver, struct usb_driver *udriver);
-
-int drm_get_usb_dev(struct usb_interface *interface,
- const struct usb_device_id *id,
- struct drm_driver *driver);
-
-#endif
projects / GitHub / exynos8895 / android_kernel_samsung_universal8895.git / commitdiff