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5320918b DA |
1 | /* |
2 | * Copyright (C) 2012 Red Hat | |
3 | * | |
4 | * based in parts on udlfb.c: | |
5 | * Copyright (C) 2009 Roberto De Ioris <roberto@unbit.it> | |
6 | * Copyright (C) 2009 Jaya Kumar <jayakumar.lkml@gmail.com> | |
7 | * Copyright (C) 2009 Bernie Thompson <bernie@plugable.com> | |
8 | * | |
9 | * This file is subject to the terms and conditions of the GNU General Public | |
10 | * License v2. See the file COPYING in the main directory of this archive for | |
11 | * more details. | |
12 | */ | |
13 | ||
14 | #ifndef UDL_DRV_H | |
15 | #define UDL_DRV_H | |
16 | ||
17 | #include <linux/usb.h> | |
18 | ||
19 | #define DRIVER_NAME "udl" | |
20 | #define DRIVER_DESC "DisplayLink" | |
21 | #define DRIVER_DATE "20120220" | |
22 | ||
23 | #define DRIVER_MAJOR 0 | |
24 | #define DRIVER_MINOR 0 | |
25 | #define DRIVER_PATCHLEVEL 1 | |
26 | ||
27 | struct udl_device; | |
28 | ||
29 | struct urb_node { | |
30 | struct list_head entry; | |
31 | struct udl_device *dev; | |
32 | struct delayed_work release_urb_work; | |
33 | struct urb *urb; | |
34 | }; | |
35 | ||
36 | struct urb_list { | |
37 | struct list_head list; | |
38 | spinlock_t lock; | |
39 | struct semaphore limit_sem; | |
40 | int available; | |
41 | int count; | |
42 | size_t size; | |
43 | }; | |
44 | ||
45 | struct udl_fbdev; | |
46 | ||
47 | struct udl_device { | |
48 | struct device *dev; | |
49 | struct drm_device *ddev; | |
d4f68a75 | 50 | struct usb_device *udev; |
5320918b DA |
51 | |
52 | int sku_pixel_limit; | |
53 | ||
54 | struct urb_list urbs; | |
55 | atomic_t lost_pixels; /* 1 = a render op failed. Need screen refresh */ | |
56 | ||
57 | struct udl_fbdev *fbdev; | |
58 | char mode_buf[1024]; | |
59 | uint32_t mode_buf_len; | |
60 | atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */ | |
61 | atomic_t bytes_identical; /* saved effort with backbuffer comparison */ | |
62 | atomic_t bytes_sent; /* to usb, after compression including overhead */ | |
63 | atomic_t cpu_kcycles_used; /* transpired during pixel processing */ | |
64 | }; | |
65 | ||
66 | struct udl_gem_object { | |
67 | struct drm_gem_object base; | |
68 | struct page **pages; | |
69 | void *vmapping; | |
96503f59 | 70 | struct sg_table *sg; |
5320918b DA |
71 | }; |
72 | ||
73 | #define to_udl_bo(x) container_of(x, struct udl_gem_object, base) | |
74 | ||
75 | struct udl_framebuffer { | |
76 | struct drm_framebuffer base; | |
77 | struct udl_gem_object *obj; | |
78 | bool active_16; /* active on the 16-bit channel */ | |
bcb39af4 DA |
79 | int x1, y1, x2, y2; /* dirty rect */ |
80 | spinlock_t dirty_lock; | |
5320918b DA |
81 | }; |
82 | ||
83 | #define to_udl_fb(x) container_of(x, struct udl_framebuffer, base) | |
84 | ||
85 | /* modeset */ | |
86 | int udl_modeset_init(struct drm_device *dev); | |
87 | void udl_modeset_cleanup(struct drm_device *dev); | |
88 | int udl_connector_init(struct drm_device *dev, struct drm_encoder *encoder); | |
89 | ||
90 | struct drm_encoder *udl_encoder_init(struct drm_device *dev); | |
91 | ||
92 | struct urb *udl_get_urb(struct drm_device *dev); | |
93 | ||
94 | int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len); | |
95 | void udl_urb_completion(struct urb *urb); | |
96 | ||
97 | int udl_driver_load(struct drm_device *dev, unsigned long flags); | |
98 | int udl_driver_unload(struct drm_device *dev); | |
99 | ||
100 | int udl_fbdev_init(struct drm_device *dev); | |
101 | void udl_fbdev_cleanup(struct drm_device *dev); | |
102 | void udl_fbdev_unplug(struct drm_device *dev); | |
103 | struct drm_framebuffer * | |
104 | udl_fb_user_fb_create(struct drm_device *dev, | |
105 | struct drm_file *file, | |
106 | struct drm_mode_fb_cmd2 *mode_cmd); | |
107 | ||
108 | int udl_render_hline(struct drm_device *dev, int bpp, struct urb **urb_ptr, | |
109 | const char *front, char **urb_buf_ptr, | |
3916e1d7 | 110 | u32 byte_offset, u32 device_byte_offset, u32 byte_width, |
5320918b DA |
111 | int *ident_ptr, int *sent_ptr); |
112 | ||
113 | int udl_dumb_create(struct drm_file *file_priv, | |
114 | struct drm_device *dev, | |
115 | struct drm_mode_create_dumb *args); | |
116 | int udl_gem_mmap(struct drm_file *file_priv, struct drm_device *dev, | |
117 | uint32_t handle, uint64_t *offset); | |
5320918b | 118 | |
5320918b DA |
119 | void udl_gem_free_object(struct drm_gem_object *gem_obj); |
120 | struct udl_gem_object *udl_gem_alloc_object(struct drm_device *dev, | |
121 | size_t size); | |
96503f59 DA |
122 | struct drm_gem_object *udl_gem_prime_import(struct drm_device *dev, |
123 | struct dma_buf *dma_buf); | |
5320918b DA |
124 | |
125 | int udl_gem_vmap(struct udl_gem_object *obj); | |
126 | void udl_gem_vunmap(struct udl_gem_object *obj); | |
fa9e8550 | 127 | int udl_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); |
5320918b DA |
128 | int udl_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf); |
129 | ||
130 | int udl_handle_damage(struct udl_framebuffer *fb, int x, int y, | |
131 | int width, int height); | |
132 | ||
133 | int udl_drop_usb(struct drm_device *dev); | |
134 | ||
135 | #define CMD_WRITE_RAW8 "\xAF\x60" /**< 8 bit raw write command. */ | |
136 | #define CMD_WRITE_RL8 "\xAF\x61" /**< 8 bit run length command. */ | |
137 | #define CMD_WRITE_COPY8 "\xAF\x62" /**< 8 bit copy command. */ | |
138 | #define CMD_WRITE_RLX8 "\xAF\x63" /**< 8 bit extended run length command. */ | |
139 | ||
140 | #define CMD_WRITE_RAW16 "\xAF\x68" /**< 16 bit raw write command. */ | |
141 | #define CMD_WRITE_RL16 "\xAF\x69" /**< 16 bit run length command. */ | |
142 | #define CMD_WRITE_COPY16 "\xAF\x6A" /**< 16 bit copy command. */ | |
143 | #define CMD_WRITE_RLX16 "\xAF\x6B" /**< 16 bit extended run length command. */ | |
144 | ||
145 | #endif |