mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
103 lines
2.9 KiB
103 lines
2.9 KiB
/* SPDX-License-Identifier: GPL-2.0 */ |
|
#ifndef UDLFB_H |
|
#define UDLFB_H |
|
|
|
/* |
|
* TODO: Propose standard fb.h ioctl for reporting damage, |
|
* using _IOWR() and one of the existing area structs from fb.h |
|
* Consider these ioctls deprecated, but they're still used by the |
|
* DisplayLink X server as yet - need both to be modified in tandem |
|
* when new ioctl(s) are ready. |
|
*/ |
|
#define DLFB_IOCTL_RETURN_EDID 0xAD |
|
#define DLFB_IOCTL_REPORT_DAMAGE 0xAA |
|
struct dloarea { |
|
int x, y; |
|
int w, h; |
|
int x2, y2; |
|
}; |
|
|
|
struct urb_node { |
|
struct list_head entry; |
|
struct dlfb_data *dlfb; |
|
struct urb *urb; |
|
}; |
|
|
|
struct urb_list { |
|
struct list_head list; |
|
spinlock_t lock; |
|
struct semaphore limit_sem; |
|
int available; |
|
int count; |
|
size_t size; |
|
}; |
|
|
|
struct dlfb_data { |
|
struct usb_device *udev; |
|
struct fb_info *info; |
|
struct urb_list urbs; |
|
char *backing_buffer; |
|
int fb_count; |
|
bool virtualized; /* true when physical usb device not present */ |
|
atomic_t usb_active; /* 0 = update virtual buffer, but no usb traffic */ |
|
atomic_t lost_pixels; /* 1 = a render op failed. Need screen refresh */ |
|
char *edid; /* null until we read edid from hw or get from sysfs */ |
|
size_t edid_size; |
|
int sku_pixel_limit; |
|
int base16; |
|
int base8; |
|
u32 pseudo_palette[256]; |
|
int blank_mode; /*one of FB_BLANK_ */ |
|
struct mutex render_mutex; |
|
int damage_x; |
|
int damage_y; |
|
int damage_x2; |
|
int damage_y2; |
|
spinlock_t damage_lock; |
|
struct work_struct damage_work; |
|
struct fb_ops ops; |
|
/* blit-only rendering path metrics, exposed through sysfs */ |
|
atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */ |
|
atomic_t bytes_identical; /* saved effort with backbuffer comparison */ |
|
atomic_t bytes_sent; /* to usb, after compression including overhead */ |
|
atomic_t cpu_kcycles_used; /* transpired during pixel processing */ |
|
struct fb_var_screeninfo current_mode; |
|
struct list_head deferred_free; |
|
}; |
|
|
|
#define NR_USB_REQUEST_I2C_SUB_IO 0x02 |
|
#define NR_USB_REQUEST_CHANNEL 0x12 |
|
|
|
/* -BULK_SIZE as per usb-skeleton. Can we get full page and avoid overhead? */ |
|
#define BULK_SIZE 512 |
|
#define MAX_TRANSFER (PAGE_SIZE*16 - BULK_SIZE) |
|
#define WRITES_IN_FLIGHT (4) |
|
|
|
#define MAX_VENDOR_DESCRIPTOR_SIZE 256 |
|
|
|
#define GET_URB_TIMEOUT HZ |
|
#define FREE_URB_TIMEOUT (HZ*2) |
|
|
|
#define BPP 2 |
|
#define MAX_CMD_PIXELS 255 |
|
|
|
#define RLX_HEADER_BYTES 7 |
|
#define MIN_RLX_PIX_BYTES 4 |
|
#define MIN_RLX_CMD_BYTES (RLX_HEADER_BYTES + MIN_RLX_PIX_BYTES) |
|
|
|
#define RLE_HEADER_BYTES 6 |
|
#define MIN_RLE_PIX_BYTES 3 |
|
#define MIN_RLE_CMD_BYTES (RLE_HEADER_BYTES + MIN_RLE_PIX_BYTES) |
|
|
|
#define RAW_HEADER_BYTES 6 |
|
#define MIN_RAW_PIX_BYTES 2 |
|
#define MIN_RAW_CMD_BYTES (RAW_HEADER_BYTES + MIN_RAW_PIX_BYTES) |
|
|
|
#define DL_DEFIO_WRITE_DELAY msecs_to_jiffies(HZ <= 300 ? 4 : 10) /* optimal value for 720p video */ |
|
#define DL_DEFIO_WRITE_DISABLE (HZ*60) /* "disable" with long delay */ |
|
|
|
/* remove these once align.h patch is taken into kernel */ |
|
#define DL_ALIGN_UP(x, a) ALIGN(x, a) |
|
#define DL_ALIGN_DOWN(x, a) ALIGN_DOWN(x, a) |
|
|
|
#endif
|
|
|