1#ifndef UDLFB_H 2#define UDLFB_H 3 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 13struct dloarea { 14 int x, y; 15 int w, h; 16 int x2, y2; 17}; 18 19struct urb_node { 20 struct list_head entry; 21 struct dlfb_data *dev; 22 struct urb *urb; 23}; 24 25struct urb_list { 26 struct list_head list; 27 spinlock_t lock; 28 struct semaphore limit_sem; 29 int available; 30 int count; 31 size_t size; 32}; 33 34struct dlfb_data { 35 struct usb_device *udev; 36 struct device *gdev; /* &udev->dev */ 37 struct fb_info *info; 38 struct urb_list urbs; 39 struct kref kref; 40 char *backing_buffer; 41 struct delayed_work deferred_work; 42 struct mutex fb_open_lock; 43 int fb_count; 44 atomic_t usb_active; /* 0 = update virtual buffer, but no usb traffic */ 45 atomic_t lost_pixels; /* 1 = a render op failed. Need screen refresh */ 46 atomic_t use_defio; /* 0 = rely on ioctls and blit/copy/fill rects */ 47 char edid[128]; 48 int sku_pixel_limit; 49 int base16; 50 int base8; 51 u32 pseudo_palette[256]; 52 /* blit-only rendering path metrics, exposed through sysfs */ 53 atomic_t bytes_rendered; /* raw pixel-bytes driver asked to render */ 54 atomic_t bytes_identical; /* saved effort with backbuffer comparison */ 55 atomic_t bytes_sent; /* to usb, after compression including overhead */ 56 atomic_t cpu_kcycles_used; /* transpired during pixel processing */ 57 /* interface usage metrics. Clients can call driver via several */ 58 atomic_t blit_count; 59 atomic_t copy_count; 60 atomic_t fill_count; 61 atomic_t damage_count; 62 atomic_t defio_fault_count; 63}; 64 65#define NR_USB_REQUEST_I2C_SUB_IO 0x02 66#define NR_USB_REQUEST_CHANNEL 0x12 67 68/* -BULK_SIZE as per usb-skeleton. Can we get full page and avoid overhead? */ 69#define BULK_SIZE 512 70#define MAX_TRANSFER (PAGE_SIZE*16 - BULK_SIZE) 71#define WRITES_IN_FLIGHT (4) 72 73#define GET_URB_TIMEOUT HZ 74#define FREE_URB_TIMEOUT (HZ*2) 75 76#define BPP 2 77#define MAX_CMD_PIXELS 255 78 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) 82 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) 86 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) 90 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) 94 95/* remove once this gets added to sysfs.h */ 96#define __ATTR_RW(attr) __ATTR(attr, 0644, attr##_show, attr##_store) 97 98#define dl_err(format, arg...) \ 99 dev_err(dev->gdev, "dlfb: " format, ## arg) 100#define dl_warn(format, arg...) \ 101 dev_warn(dev->gdev, "dlfb: " format, ## arg) 102#define dl_notice(format, arg...) \ 103 dev_notice(dev->gdev, "dlfb: " format, ## arg) 104#define dl_info(format, arg...) \ 105 dev_info(dev->gdev, "dlfb: " format, ## arg) 106#endif 107