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Commit | Line | Data |
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b2441318 | 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
39e7df5d GKH |
2 | #ifndef UDLFB_H |
3 | #define UDLFB_H | |
88e58b1a | 4 | |
530f43a8 BT |
5 | /* |
6 | * TODO: Propose standard fb.h ioctl for reporting damage, | |
7 | * using _IOWR() and one of the existing area structs from fb.h | |
8 | * Consider these ioctls deprecated, but they're still used by the | |
9 | * DisplayLink X server as yet - need both to be modified in tandem | |
10 | * when new ioctl(s) are ready. | |
11 | */ | |
12 | #define DLFB_IOCTL_RETURN_EDID 0xAD | |
13 | #define DLFB_IOCTL_REPORT_DAMAGE 0xAA | |
14 | struct dloarea { | |
15 | int x, y; | |
16 | int w, h; | |
17 | int x2, y2; | |
18 | }; | |
88e58b1a | 19 | |
4a4854dd BT |
20 | struct urb_node { |
21 | struct list_head entry; | |
22 | struct dlfb_data *dev; | |
5bea1fbf | 23 | struct delayed_work release_urb_work; |
4a4854dd BT |
24 | struct urb *urb; |
25 | }; | |
26 | ||
27 | struct urb_list { | |
28 | struct list_head list; | |
29 | spinlock_t lock; | |
30 | struct semaphore limit_sem; | |
31 | int available; | |
32 | int count; | |
33 | size_t size; | |
34 | }; | |
35 | ||
88e58b1a RDI |
36 | struct dlfb_data { |
37 | struct usb_device *udev; | |
4a4854dd | 38 | struct device *gdev; /* &udev->dev */ |
88e58b1a | 39 | struct fb_info *info; |
4a4854dd BT |
40 | struct urb_list urbs; |
41 | struct kref kref; | |
88e58b1a | 42 | char *backing_buffer; |
7d9485e2 | 43 | int fb_count; |
33077b8d | 44 | bool virtualized; /* true when physical usb device not present */ |
8d21547d | 45 | struct delayed_work init_framebuffer_work; |
33077b8d | 46 | struct delayed_work free_framebuffer_work; |
7d9485e2 | 47 | atomic_t usb_active; /* 0 = update virtual buffer, but no usb traffic */ |
4a4854dd | 48 | atomic_t lost_pixels; /* 1 = a render op failed. Need screen refresh */ |
18dffdf8 BT |
49 | char *edid; /* null until we read edid from hw or get from sysfs */ |
50 | size_t edid_size; | |
7d9485e2 | 51 | int sku_pixel_limit; |
88e58b1a RDI |
52 | int base16; |
53 | int base8; | |
59277b67 | 54 | u32 pseudo_palette[256]; |
58e7c3b0 | 55 | int blank_mode; /*one of FB_BLANK_ */ |
7d9485e2 BT |
56 | /* blit-only rendering path metrics, exposed through sysfs */ |
57 | atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */ | |
58 | atomic_t bytes_identical; /* saved effort with backbuffer comparison */ | |
59 | atomic_t bytes_sent; /* to usb, after compression including overhead */ | |
60 | atomic_t cpu_kcycles_used; /* transpired during pixel processing */ | |
88e58b1a RDI |
61 | }; |
62 | ||
cc403dc6 BT |
63 | #define NR_USB_REQUEST_I2C_SUB_IO 0x02 |
64 | #define NR_USB_REQUEST_CHANNEL 0x12 | |
65 | ||
4a4854dd BT |
66 | /* -BULK_SIZE as per usb-skeleton. Can we get full page and avoid overhead? */ |
67 | #define BULK_SIZE 512 | |
68 | #define MAX_TRANSFER (PAGE_SIZE*16 - BULK_SIZE) | |
69 | #define WRITES_IN_FLIGHT (4) | |
70 | ||
18dffdf8 BT |
71 | #define MAX_VENDOR_DESCRIPTOR_SIZE 256 |
72 | ||
4a4854dd BT |
73 | #define GET_URB_TIMEOUT HZ |
74 | #define FREE_URB_TIMEOUT (HZ*2) | |
75 | ||
530f43a8 BT |
76 | #define BPP 2 |
77 | #define MAX_CMD_PIXELS 255 | |
88e58b1a | 78 | |
530f43a8 BT |
79 | #define RLX_HEADER_BYTES 7 |
80 | #define MIN_RLX_PIX_BYTES 4 | |
81 | #define MIN_RLX_CMD_BYTES (RLX_HEADER_BYTES + MIN_RLX_PIX_BYTES) | |
88e58b1a | 82 | |
530f43a8 BT |
83 | #define RLE_HEADER_BYTES 6 |
84 | #define MIN_RLE_PIX_BYTES 3 | |
85 | #define MIN_RLE_CMD_BYTES (RLE_HEADER_BYTES + MIN_RLE_PIX_BYTES) | |
88e58b1a | 86 | |
530f43a8 BT |
87 | #define RAW_HEADER_BYTES 6 |
88 | #define MIN_RAW_PIX_BYTES 2 | |
89 | #define MIN_RAW_CMD_BYTES (RAW_HEADER_BYTES + MIN_RAW_PIX_BYTES) | |
88e58b1a | 90 | |
5bea1fbf BT |
91 | #define DL_DEFIO_WRITE_DELAY 5 /* fb_deferred_io.delay in jiffies */ |
92 | #define DL_DEFIO_WRITE_DISABLE (HZ*60) /* "disable" with long delay */ | |
93 | ||
530f43a8 BT |
94 | /* remove these once align.h patch is taken into kernel */ |
95 | #define DL_ALIGN_UP(x, a) ALIGN(x, a) | |
ed067d4a | 96 | #define DL_ALIGN_DOWN(x, a) ALIGN_DOWN(x, a) |
39e7df5d GKH |
97 | |
98 | #endif |