forked from mirrors/linux
1b8db07f23
Add constants for the various commands that the driver can send to the device and update the respective helper functions. No functional changes. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20221006095355.23579-17-tzimmermann@suse.de
105 lines
2.4 KiB
C
105 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2012 Red Hat
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*
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* based in parts on udlfb.c:
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* Copyright (C) 2009 Roberto De Ioris <roberto@unbit.it>
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* Copyright (C) 2009 Jaya Kumar <jayakumar.lkml@gmail.com>
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* Copyright (C) 2009 Bernie Thompson <bernie@plugable.com>
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*/
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#ifndef UDL_DRV_H
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#define UDL_DRV_H
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#include <linux/mm_types.h>
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#include <linux/usb.h>
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#include <drm/drm_connector.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_device.h>
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#include <drm/drm_encoder.h>
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#include <drm/drm_framebuffer.h>
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#include <drm/drm_gem.h>
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#include <drm/drm_plane.h>
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struct drm_mode_create_dumb;
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#define DRIVER_NAME "udl"
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#define DRIVER_DESC "DisplayLink"
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#define DRIVER_DATE "20120220"
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#define DRIVER_MAJOR 0
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#define DRIVER_MINOR 0
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#define DRIVER_PATCHLEVEL 1
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struct udl_device;
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struct urb_node {
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struct list_head entry;
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struct udl_device *dev;
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struct urb *urb;
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};
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struct urb_list {
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struct list_head list;
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spinlock_t lock;
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wait_queue_head_t sleep;
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int available;
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int count;
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size_t size;
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};
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struct udl_connector {
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struct drm_connector connector;
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/* last udl_detect edid */
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struct edid *edid;
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};
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static inline struct udl_connector *to_udl_connector(struct drm_connector *connector)
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{
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return container_of(connector, struct udl_connector, connector);
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}
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struct udl_device {
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struct drm_device drm;
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struct device *dev;
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struct device *dmadev;
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struct drm_plane primary_plane;
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struct drm_crtc crtc;
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struct drm_encoder encoder;
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struct mutex gem_lock;
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int sku_pixel_limit;
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struct urb_list urbs;
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};
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#define to_udl(x) container_of(x, struct udl_device, drm)
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static inline struct usb_device *udl_to_usb_device(struct udl_device *udl)
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{
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return interface_to_usbdev(to_usb_interface(udl->drm.dev));
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}
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/* modeset */
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int udl_modeset_init(struct drm_device *dev);
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struct drm_connector *udl_connector_init(struct drm_device *dev);
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struct urb *udl_get_urb(struct drm_device *dev);
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int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len);
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void udl_sync_pending_urbs(struct drm_device *dev);
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void udl_urb_completion(struct urb *urb);
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int udl_init(struct udl_device *udl);
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int udl_render_hline(struct drm_device *dev, int log_bpp, struct urb **urb_ptr,
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const char *front, char **urb_buf_ptr,
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u32 byte_offset, u32 device_byte_offset, u32 byte_width);
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int udl_drop_usb(struct drm_device *dev);
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int udl_select_std_channel(struct udl_device *udl);
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#endif
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