diff options
Diffstat (limited to 'drivers/gpu/drm/udl/udl_drv.h')
| -rw-r--r-- | drivers/gpu/drm/udl/udl_drv.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/gpu/drm/udl/udl_drv.h b/drivers/gpu/drm/udl/udl_drv.h new file mode 100644 index 000000000..282ebd6c0 --- /dev/null +++ b/drivers/gpu/drm/udl/udl_drv.h @@ -0,0 +1,105 @@ +/* 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 |