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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2012 Red Hat
*
* based in parts on udlfb.c:
* Copyright (C) 2009 Roberto De Ioris <roberto@unbit.it>
* Copyright (C) 2009 Jaya Kumar <jayakumar.lkml@gmail.com>
* Copyright (C) 2009 Bernie Thompson <bernie@plugable.com>
*/
#ifndef UDL_DRV_H
#define UDL_DRV_H
#include <linux/mm_types.h>
#include <linux/usb.h>
#include <drm/drm_connector.h>
#include <drm/drm_crtc.h>
#include <drm/drm_device.h>
#include <drm/drm_encoder.h>
#include <drm/drm_framebuffer.h>
#include <drm/drm_gem.h>
#include <drm/drm_plane.h>
struct drm_mode_create_dumb;
#define DRIVER_NAME "udl"
#define DRIVER_DESC "DisplayLink"
#define DRIVER_DATE "20120220"
#define DRIVER_MAJOR 0
#define DRIVER_MINOR 0
#define DRIVER_PATCHLEVEL 1
struct udl_device;
struct urb_node {
struct list_head entry;
struct udl_device *dev;
struct urb *urb;
};
struct urb_list {
struct list_head list;
spinlock_t lock;
wait_queue_head_t sleep;
int available;
int count;
size_t size;
};
struct udl_connector {
struct drm_connector connector;
/* last udl_detect edid */
struct edid *edid;
};
static inline struct udl_connector *to_udl_connector(struct drm_connector *connector)
{
return container_of(connector, struct udl_connector, connector);
}
struct udl_device {
struct drm_device drm;
struct device *dev;
struct device *dmadev;
struct drm_plane primary_plane;
struct drm_crtc crtc;
struct drm_encoder encoder;
struct mutex gem_lock;
int sku_pixel_limit;
struct urb_list urbs;
};
#define to_udl(x) container_of(x, struct udl_device, drm)
static inline struct usb_device *udl_to_usb_device(struct udl_device *udl)
{
return interface_to_usbdev(to_usb_interface(udl->drm.dev));
}
/* modeset */
int udl_modeset_init(struct drm_device *dev);
struct drm_connector *udl_connector_init(struct drm_device *dev);
struct urb *udl_get_urb(struct drm_device *dev);
int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len);
void udl_sync_pending_urbs(struct drm_device *dev);
void udl_urb_completion(struct urb *urb);
int udl_init(struct udl_device *udl);
int udl_render_hline(struct drm_device *dev, int log_bpp, struct urb **urb_ptr,
const char *front, char **urb_buf_ptr,
u32 byte_offset, u32 device_byte_offset, u32 byte_width);
int udl_drop_usb(struct drm_device *dev);
int udl_select_std_channel(struct udl_device *udl);
#endif
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