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1/* SPDX-License-Identifier: GPL-2.0-only */2/*3 * Copyright (C) 2012 Red Hat4 *5 * based in parts on udlfb.c:6 * Copyright (C) 2009 Roberto De Ioris <roberto@unbit.it>7 * Copyright (C) 2009 Jaya Kumar <jayakumar.lkml@gmail.com>8 * Copyright (C) 2009 Bernie Thompson <bernie@plugable.com>9 */10 11#ifndef UDL_DRV_H12#define UDL_DRV_H13 14#include <linux/mm_types.h>15#include <linux/usb.h>16 17#include <drm/drm_connector.h>18#include <drm/drm_crtc.h>19#include <drm/drm_device.h>20#include <drm/drm_encoder.h>21#include <drm/drm_framebuffer.h>22#include <drm/drm_gem.h>23#include <drm/drm_plane.h>24 25struct drm_mode_create_dumb;26 27#define DRIVER_NAME "udl"28#define DRIVER_DESC "DisplayLink"29#define DRIVER_DATE "20120220"30 31#define DRIVER_MAJOR 032#define DRIVER_MINOR 033#define DRIVER_PATCHLEVEL 134 35struct udl_device;36 37struct urb_node {38 struct list_head entry;39 struct udl_device *dev;40 struct urb *urb;41};42 43struct urb_list {44 struct list_head list;45 spinlock_t lock;46 wait_queue_head_t sleep;47 int available;48 int count;49 size_t size;50};51 52struct udl_device {53 struct drm_device drm;54 struct device *dev;55 struct device *dmadev;56 57 struct drm_plane primary_plane;58 struct drm_crtc crtc;59 struct drm_encoder encoder;60 struct drm_connector connector;61 62 struct mutex gem_lock;63 64 int sku_pixel_limit;65 66 struct urb_list urbs;67};68 69#define to_udl(x) container_of(x, struct udl_device, drm)70 71static inline struct usb_device *udl_to_usb_device(struct udl_device *udl)72{73 return interface_to_usbdev(to_usb_interface(udl->drm.dev));74}75 76/* modeset */77int udl_modeset_init(struct drm_device *dev);78struct drm_connector *udl_connector_init(struct drm_device *dev);79 80struct urb *udl_get_urb(struct drm_device *dev);81 82int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len);83void udl_sync_pending_urbs(struct drm_device *dev);84void udl_urb_completion(struct urb *urb);85 86int udl_init(struct udl_device *udl);87 88int udl_render_hline(struct drm_device *dev, int log_bpp, struct urb **urb_ptr,89 const char *front, char **urb_buf_ptr,90 u32 byte_offset, u32 device_byte_offset, u32 byte_width);91 92int udl_drop_usb(struct drm_device *dev);93int udl_select_std_channel(struct udl_device *udl);94 95#endif96