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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> | |
d9fc9413 | 18 | #include <drm/drm_gem.h> |
5320918b DA |
19 | |
20 | #define DRIVER_NAME "udl" | |
21 | #define DRIVER_DESC "DisplayLink" | |
22 | #define DRIVER_DATE "20120220" | |
23 | ||
24 | #define DRIVER_MAJOR 0 | |
25 | #define DRIVER_MINOR 0 | |
26 | #define DRIVER_PATCHLEVEL 1 | |
27 | ||
09a58da0 HS |
28 | #define UDL_BO_CACHEABLE (1 << 0) |
29 | #define UDL_BO_WC (1 << 1) | |
30 | ||
5320918b DA |
31 | struct udl_device; |
32 | ||
33 | struct urb_node { | |
34 | struct list_head entry; | |
35 | struct udl_device *dev; | |
36 | struct delayed_work release_urb_work; | |
37 | struct urb *urb; | |
38 | }; | |
39 | ||
40 | struct urb_list { | |
41 | struct list_head list; | |
42 | spinlock_t lock; | |
43 | struct semaphore limit_sem; | |
44 | int available; | |
45 | int count; | |
46 | size_t size; | |
47 | }; | |
48 | ||
49 | struct udl_fbdev; | |
50 | ||
51 | struct udl_device { | |
52 | struct device *dev; | |
53 | struct drm_device *ddev; | |
d4f68a75 | 54 | struct usb_device *udev; |
737ba109 | 55 | struct drm_crtc *crtc; |
5320918b DA |
56 | |
57 | int sku_pixel_limit; | |
58 | ||
59 | struct urb_list urbs; | |
60 | atomic_t lost_pixels; /* 1 = a render op failed. Need screen refresh */ | |
61 | ||
62 | struct udl_fbdev *fbdev; | |
63 | char mode_buf[1024]; | |
64 | uint32_t mode_buf_len; | |
65 | atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */ | |
66 | atomic_t bytes_identical; /* saved effort with backbuffer comparison */ | |
67 | atomic_t bytes_sent; /* to usb, after compression including overhead */ | |
68 | atomic_t cpu_kcycles_used; /* transpired during pixel processing */ | |
69 | }; | |
70 | ||
5b523bd7 DA |
71 | #define to_udl(x) ((x)->dev_private) |
72 | ||
5320918b DA |
73 | struct udl_gem_object { |
74 | struct drm_gem_object base; | |
75 | struct page **pages; | |
76 | void *vmapping; | |
96503f59 | 77 | struct sg_table *sg; |
09a58da0 | 78 | unsigned int flags; |
5320918b DA |
79 | }; |
80 | ||
81 | #define to_udl_bo(x) container_of(x, struct udl_gem_object, base) | |
82 | ||
83 | struct udl_framebuffer { | |
84 | struct drm_framebuffer base; | |
85 | struct udl_gem_object *obj; | |
86 | bool active_16; /* active on the 16-bit channel */ | |
87 | }; | |
88 | ||
89 | #define to_udl_fb(x) container_of(x, struct udl_framebuffer, base) | |
90 | ||
91 | /* modeset */ | |
92 | int udl_modeset_init(struct drm_device *dev); | |
737ba109 | 93 | void udl_modeset_restore(struct drm_device *dev); |
5320918b DA |
94 | void udl_modeset_cleanup(struct drm_device *dev); |
95 | int udl_connector_init(struct drm_device *dev, struct drm_encoder *encoder); | |
96 | ||
97 | struct drm_encoder *udl_encoder_init(struct drm_device *dev); | |
98 | ||
99 | struct urb *udl_get_urb(struct drm_device *dev); | |
100 | ||
101 | int udl_submit_urb(struct drm_device *dev, struct urb *urb, size_t len); | |
102 | void udl_urb_completion(struct urb *urb); | |
103 | ||
104 | int udl_driver_load(struct drm_device *dev, unsigned long flags); | |
11b3c20b | 105 | void udl_driver_unload(struct drm_device *dev); |
20f4e732 | 106 | void udl_driver_release(struct drm_device *dev); |
5320918b DA |
107 | |
108 | int udl_fbdev_init(struct drm_device *dev); | |
109 | void udl_fbdev_cleanup(struct drm_device *dev); | |
110 | void udl_fbdev_unplug(struct drm_device *dev); | |
111 | struct drm_framebuffer * | |
112 | udl_fb_user_fb_create(struct drm_device *dev, | |
113 | struct drm_file *file, | |
1eb83451 | 114 | const struct drm_mode_fb_cmd2 *mode_cmd); |
5320918b | 115 | |
dea6f074 | 116 | int udl_render_hline(struct drm_device *dev, int log_bpp, struct urb **urb_ptr, |
5320918b | 117 | const char *front, char **urb_buf_ptr, |
3916e1d7 | 118 | u32 byte_offset, u32 device_byte_offset, u32 byte_width, |
5320918b DA |
119 | int *ident_ptr, int *sent_ptr); |
120 | ||
121 | int udl_dumb_create(struct drm_file *file_priv, | |
122 | struct drm_device *dev, | |
123 | struct drm_mode_create_dumb *args); | |
124 | int udl_gem_mmap(struct drm_file *file_priv, struct drm_device *dev, | |
125 | uint32_t handle, uint64_t *offset); | |
5320918b | 126 | |
5320918b DA |
127 | void udl_gem_free_object(struct drm_gem_object *gem_obj); |
128 | struct udl_gem_object *udl_gem_alloc_object(struct drm_device *dev, | |
129 | size_t size); | |
ebfdd6d5 HS |
130 | struct dma_buf *udl_gem_prime_export(struct drm_device *dev, |
131 | struct drm_gem_object *obj, int flags); | |
96503f59 DA |
132 | struct drm_gem_object *udl_gem_prime_import(struct drm_device *dev, |
133 | struct dma_buf *dma_buf); | |
5320918b | 134 | |
4bc158e0 HS |
135 | int udl_gem_get_pages(struct udl_gem_object *obj); |
136 | void udl_gem_put_pages(struct udl_gem_object *obj); | |
5320918b DA |
137 | int udl_gem_vmap(struct udl_gem_object *obj); |
138 | void udl_gem_vunmap(struct udl_gem_object *obj); | |
fa9e8550 | 139 | int udl_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); |
11bac800 | 140 | int udl_gem_fault(struct vm_fault *vmf); |
5320918b DA |
141 | |
142 | int udl_handle_damage(struct udl_framebuffer *fb, int x, int y, | |
143 | int width, int height); | |
144 | ||
145 | int udl_drop_usb(struct drm_device *dev); | |
146 | ||
147 | #define CMD_WRITE_RAW8 "\xAF\x60" /**< 8 bit raw write command. */ | |
148 | #define CMD_WRITE_RL8 "\xAF\x61" /**< 8 bit run length command. */ | |
149 | #define CMD_WRITE_COPY8 "\xAF\x62" /**< 8 bit copy command. */ | |
150 | #define CMD_WRITE_RLX8 "\xAF\x63" /**< 8 bit extended run length command. */ | |
151 | ||
152 | #define CMD_WRITE_RAW16 "\xAF\x68" /**< 16 bit raw write command. */ | |
153 | #define CMD_WRITE_RL16 "\xAF\x69" /**< 16 bit run length command. */ | |
154 | #define CMD_WRITE_COPY16 "\xAF\x6A" /**< 16 bit copy command. */ | |
155 | #define CMD_WRITE_RLX16 "\xAF\x6B" /**< 16 bit extended run length command. */ | |
156 | ||
157 | #endif |