Commit | Line | Data |
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39e7df5d GKH |
1 | #ifndef UDLFB_H |
2 | #define UDLFB_H | |
88e58b1a | 3 | |
530f43a8 BT |
4 | /* |
5 | * TODO: Propose standard fb.h ioctl for reporting damage, | |
6 | * using _IOWR() and one of the existing area structs from fb.h | |
7 | * Consider these ioctls deprecated, but they're still used by the | |
8 | * DisplayLink X server as yet - need both to be modified in tandem | |
9 | * when new ioctl(s) are ready. | |
10 | */ | |
11 | #define DLFB_IOCTL_RETURN_EDID 0xAD | |
12 | #define DLFB_IOCTL_REPORT_DAMAGE 0xAA | |
13 | struct dloarea { | |
14 | int x, y; | |
15 | int w, h; | |
16 | int x2, y2; | |
17 | }; | |
88e58b1a | 18 | |
4a4854dd BT |
19 | struct urb_node { |
20 | struct list_head entry; | |
21 | struct dlfb_data *dev; | |
5bea1fbf | 22 | struct delayed_work release_urb_work; |
4a4854dd BT |
23 | struct urb *urb; |
24 | }; | |
25 | ||
26 | struct urb_list { | |
27 | struct list_head list; | |
28 | spinlock_t lock; | |
29 | struct semaphore limit_sem; | |
30 | int available; | |
31 | int count; | |
32 | size_t size; | |
33 | }; | |
34 | ||
88e58b1a RDI |
35 | struct dlfb_data { |
36 | struct usb_device *udev; | |
4a4854dd | 37 | struct device *gdev; /* &udev->dev */ |
88e58b1a | 38 | struct fb_info *info; |
4a4854dd BT |
39 | struct urb_list urbs; |
40 | struct kref kref; | |
88e58b1a | 41 | char *backing_buffer; |
7d9485e2 | 42 | int fb_count; |
33077b8d BT |
43 | bool virtualized; /* true when physical usb device not present */ |
44 | struct delayed_work free_framebuffer_work; | |
7d9485e2 | 45 | atomic_t usb_active; /* 0 = update virtual buffer, but no usb traffic */ |
4a4854dd | 46 | atomic_t lost_pixels; /* 1 = a render op failed. Need screen refresh */ |
18dffdf8 BT |
47 | char *edid; /* null until we read edid from hw or get from sysfs */ |
48 | size_t edid_size; | |
7d9485e2 | 49 | int sku_pixel_limit; |
88e58b1a RDI |
50 | int base16; |
51 | int base8; | |
59277b67 | 52 | u32 pseudo_palette[256]; |
7d9485e2 BT |
53 | /* blit-only rendering path metrics, exposed through sysfs */ |
54 | atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */ | |
55 | atomic_t bytes_identical; /* saved effort with backbuffer comparison */ | |
56 | atomic_t bytes_sent; /* to usb, after compression including overhead */ | |
57 | atomic_t cpu_kcycles_used; /* transpired during pixel processing */ | |
88e58b1a RDI |
58 | }; |
59 | ||
cc403dc6 BT |
60 | #define NR_USB_REQUEST_I2C_SUB_IO 0x02 |
61 | #define NR_USB_REQUEST_CHANNEL 0x12 | |
62 | ||
4a4854dd BT |
63 | /* -BULK_SIZE as per usb-skeleton. Can we get full page and avoid overhead? */ |
64 | #define BULK_SIZE 512 | |
65 | #define MAX_TRANSFER (PAGE_SIZE*16 - BULK_SIZE) | |
66 | #define WRITES_IN_FLIGHT (4) | |
67 | ||
18dffdf8 BT |
68 | #define MAX_VENDOR_DESCRIPTOR_SIZE 256 |
69 | ||
4a4854dd BT |
70 | #define GET_URB_TIMEOUT HZ |
71 | #define FREE_URB_TIMEOUT (HZ*2) | |
72 | ||
530f43a8 BT |
73 | #define BPP 2 |
74 | #define MAX_CMD_PIXELS 255 | |
88e58b1a | 75 | |
530f43a8 BT |
76 | #define RLX_HEADER_BYTES 7 |
77 | #define MIN_RLX_PIX_BYTES 4 | |
78 | #define MIN_RLX_CMD_BYTES (RLX_HEADER_BYTES + MIN_RLX_PIX_BYTES) | |
88e58b1a | 79 | |
530f43a8 BT |
80 | #define RLE_HEADER_BYTES 6 |
81 | #define MIN_RLE_PIX_BYTES 3 | |
82 | #define MIN_RLE_CMD_BYTES (RLE_HEADER_BYTES + MIN_RLE_PIX_BYTES) | |
88e58b1a | 83 | |
530f43a8 BT |
84 | #define RAW_HEADER_BYTES 6 |
85 | #define MIN_RAW_PIX_BYTES 2 | |
86 | #define MIN_RAW_CMD_BYTES (RAW_HEADER_BYTES + MIN_RAW_PIX_BYTES) | |
88e58b1a | 87 | |
5bea1fbf BT |
88 | #define DL_DEFIO_WRITE_DELAY 5 /* fb_deferred_io.delay in jiffies */ |
89 | #define DL_DEFIO_WRITE_DISABLE (HZ*60) /* "disable" with long delay */ | |
90 | ||
530f43a8 BT |
91 | /* remove these once align.h patch is taken into kernel */ |
92 | #define DL_ALIGN_UP(x, a) ALIGN(x, a) | |
93 | #define DL_ALIGN_DOWN(x, a) ALIGN(x-(a-1), a) | |
39e7df5d | 94 | |
33077b8d BT |
95 | /* |
96 | * udlfb is both a usb device, and a framebuffer device. | |
97 | * They may exist at the same time, but during various stages | |
98 | * inactivity, teardown, or "virtual" operation, only one or the | |
99 | * other will exist (one will outlive the other). So we can't | |
100 | * call the dev_*() macros, because we don't have a stable dev object. | |
101 | */ | |
4a4854dd | 102 | #define dl_err(format, arg...) \ |
33077b8d | 103 | pr_err("udlfb: " format, ## arg) |
4a4854dd | 104 | #define dl_warn(format, arg...) \ |
33077b8d | 105 | pr_warning("udlfb: " format, ## arg) |
4a4854dd | 106 | #define dl_notice(format, arg...) \ |
33077b8d | 107 | pr_notice("udlfb: " format, ## arg) |
4a4854dd | 108 | #define dl_info(format, arg...) \ |
33077b8d BT |
109 | pr_info("udlfb: " format, ## arg) |
110 | ||
39e7df5d | 111 | #endif |