1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
2 | /* |
3 | * Copyright (C) 2012 Red Hat |
4 | * |
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_H |
12 | #define UDL_DRV_H |
13 | |
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 | |
25 | struct 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 0 |
32 | #define DRIVER_MINOR 0 |
33 | #define DRIVER_PATCHLEVEL 1 |
34 | |
35 | struct udl_device; |
36 | |
37 | struct urb_node { |
38 | struct list_head entry; |
39 | struct udl_device *dev; |
40 | struct urb *urb; |
41 | }; |
42 | |
43 | struct 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 | |
52 | struct udl_connector { |
53 | struct drm_connector connector; |
54 | /* last udl_detect edid */ |
55 | struct edid *edid; |
56 | }; |
57 | |
58 | static inline struct udl_connector *to_udl_connector(struct drm_connector *connector) |
59 | { |
60 | return container_of(connector, struct udl_connector, connector); |
61 | } |
62 | |
63 | struct udl_device { |
64 | struct drm_device drm; |
65 | struct device *dev; |
66 | struct device *dmadev; |
67 | |
68 | struct drm_plane primary_plane; |
69 | struct drm_crtc crtc; |
70 | struct drm_encoder encoder; |
71 | |
72 | struct mutex gem_lock; |
73 | |
74 | int sku_pixel_limit; |
75 | |
76 | struct urb_list urbs; |
77 | }; |
78 | |
79 | #define to_udl(x) container_of(x, struct udl_device, drm) |
80 | |
81 | static inline struct usb_device *udl_to_usb_device(struct udl_device *udl) |
82 | { |
83 | return interface_to_usbdev(to_usb_interface(udl->drm.dev)); |
84 | } |
85 | |
86 | /* modeset */ |
87 | int udl_modeset_init(struct drm_device *dev); |
88 | struct drm_connector *udl_connector_init(struct drm_device *dev); |
89 | |
90 | struct urb *udl_get_urb(struct drm_device *dev); |
91 | |
92 | int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len); |
93 | void udl_sync_pending_urbs(struct drm_device *dev); |
94 | void udl_urb_completion(struct urb *urb); |
95 | |
96 | int udl_init(struct udl_device *udl); |
97 | |
98 | int udl_render_hline(struct drm_device *dev, int log_bpp, struct urb **urb_ptr, |
99 | const char *front, char **urb_buf_ptr, |
100 | u32 byte_offset, u32 device_byte_offset, u32 byte_width); |
101 | |
102 | int udl_drop_usb(struct drm_device *dev); |
103 | int udl_select_std_channel(struct udl_device *udl); |
104 | |
105 | #endif |
106 | |