diff options
Diffstat (limited to 'drivers/staging/udlfb/udlfb.h')
-rw-r--r-- | drivers/staging/udlfb/udlfb.h | 281 |
1 files changed, 81 insertions, 200 deletions
diff --git a/drivers/staging/udlfb/udlfb.h b/drivers/staging/udlfb/udlfb.h index 40ad85ea8e6..b07a69371f1 100644 --- a/drivers/staging/udlfb/udlfb.h +++ b/drivers/staging/udlfb/udlfb.h @@ -1,225 +1,106 @@ #ifndef UDLFB_H #define UDLFB_H -#define MAX_VMODES 4 -#define FB_BPP 16 +/* + * 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; +}; -#define STD_CHANNEL "\x57\xCD\xDC\xA7\x1C\x88\x5E\x15" \ - "\x60\xFE\xC6\x97\x16\x3D\x47\xF2" +struct urb_node { + struct list_head entry; + struct dlfb_data *dev; + struct urb *urb; +}; -/* as libdlo */ -#define BUF_HIGH_WATER_MARK 1024 -#define BUF_SIZE (64*1024) +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 usb_interface *interface; - struct urb *tx_urb, *ctrl_urb; - struct usb_ctrlrequest dr; + struct device *gdev; /* &udev->dev */ struct fb_info *info; - char *buf; - char *bufend; + struct urb_list urbs; + struct kref kref; char *backing_buffer; - struct mutex bulk_mutex; + struct delayed_work deferred_work; + struct mutex fb_open_lock; + int fb_count; + atomic_t usb_active; /* 0 = update virtual buffer, but no usb traffic */ + atomic_t lost_pixels; /* 1 = a render op failed. Need screen refresh */ + atomic_t use_defio; /* 0 = rely on ioctls and blit/copy/fill rects */ char edid[128]; - int screen_size; - int line_length; - struct completion done; + int sku_pixel_limit; int base16; - int base16d; int base8; - int base8d; + u32 pseudo_palette[256]; + /* 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 */ + /* interface usage metrics. Clients can call driver via several */ + atomic_t blit_count; + atomic_t copy_count; + atomic_t fill_count; + atomic_t damage_count; + atomic_t defio_fault_count; }; -struct dlfb_video_mode { - uint8_t col; - uint32_t hclock; - uint32_t vclock; - uint8_t unknown1[6]; - uint16_t xres; - uint8_t unknown2[6]; - uint16_t yres; - uint8_t unknown3[4]; -} __attribute__ ((__packed__)); - -static struct dlfb_video_mode dlfb_video_modes[MAX_VMODES]; - -static void dlfb_bulk_callback(struct urb *urb) -{ - struct dlfb_data *dev_info = urb->context; - complete(&dev_info->done); -} - -static void dlfb_edid(struct dlfb_data *dev_info) -{ - int i; - int ret; - char rbuf[2]; - - for (i = 0; i < 128; i++) { - ret = - usb_control_msg(dev_info->udev, - usb_rcvctrlpipe(dev_info->udev, 0), (0x02), - (0x80 | (0x02 << 5)), i << 8, 0xA1, rbuf, 2, - 0); - /*printk("ret control msg edid %d: %d [%d]\n",i, ret, rbuf[1]); */ - dev_info->edid[i] = rbuf[1]; - } - -} - -static int dlfb_bulk_msg(struct dlfb_data *dev_info, int len) -{ - int ret; - - init_completion(&dev_info->done); - - dev_info->tx_urb->actual_length = 0; - dev_info->tx_urb->transfer_buffer_length = len; - - ret = usb_submit_urb(dev_info->tx_urb, GFP_KERNEL); - if (!wait_for_completion_timeout(&dev_info->done, 1000)) { - usb_kill_urb(dev_info->tx_urb); - printk("usb timeout !!!\n"); - } - - return dev_info->tx_urb->actual_length; -} - -static void dlfb_init_modes(void) -{ - dlfb_video_modes[0].col = 0; - memcpy(&dlfb_video_modes[0].hclock, "\x20\x3C\x7A\xC9", 4); - memcpy(&dlfb_video_modes[0].vclock, "\xF2\x6C\x48\xF9", 4); - memcpy(&dlfb_video_modes[0].unknown1, "\x70\x53\xFF\xFF\x21\x27", 6); - dlfb_video_modes[0].xres = 800; - memcpy(&dlfb_video_modes[0].unknown2, "\x91\xF3\xFF\xFF\xFF\xF9", 6); - dlfb_video_modes[0].yres = 480; - memcpy(&dlfb_video_modes[0].unknown3, "\x01\x02\xC8\x19", 4); - - dlfb_video_modes[1].col = 0; - memcpy(&dlfb_video_modes[1].hclock, "\x36\x18\xD5\x10", 4); - memcpy(&dlfb_video_modes[1].vclock, "\x60\xA9\x7B\x33", 4); - memcpy(&dlfb_video_modes[1].unknown1, "\xA1\x2B\x27\x32\xFF\xFF", 6); - dlfb_video_modes[1].xres = 1024; - memcpy(&dlfb_video_modes[1].unknown2, "\xD9\x9A\xFF\xCA\xFF\xFF", 6); - dlfb_video_modes[1].yres = 768; - memcpy(&dlfb_video_modes[1].unknown3, "\x04\x03\xC8\x32", 4); - - dlfb_video_modes[2].col = 0; - memcpy(&dlfb_video_modes[2].hclock, "\x98\xF8\x0D\x57", 4); - memcpy(&dlfb_video_modes[2].vclock, "\x2A\x55\x4D\x54", 4); - memcpy(&dlfb_video_modes[2].unknown1, "\xCA\x0D\xFF\xFF\x94\x43", 6); - dlfb_video_modes[2].xres = 1280; - memcpy(&dlfb_video_modes[2].unknown2, "\x9A\xA8\xFF\xFF\xFF\xF9", 6); - dlfb_video_modes[2].yres = 1024; - memcpy(&dlfb_video_modes[2].unknown3, "\x04\x02\x60\x54", 4); - - dlfb_video_modes[3].col = 0; - memcpy(&dlfb_video_modes[3].hclock, "\x42\x24\x38\x36", 4); - memcpy(&dlfb_video_modes[3].vclock, "\xC1\x52\xD9\x29", 4); - memcpy(&dlfb_video_modes[3].unknown1, "\xEA\xB8\x32\x60\xFF\xFF", 6); - dlfb_video_modes[3].xres = 1400; - memcpy(&dlfb_video_modes[3].unknown2, "\xC9\x4E\xFF\xFF\xFF\xF2", 6); - dlfb_video_modes[3].yres = 1050; - memcpy(&dlfb_video_modes[3].unknown3, "\x04\x02\x1E\x5F", 4); -} - -static char *dlfb_set_register(char *bufptr, uint8_t reg, uint8_t val) -{ - *bufptr++ = 0xAF; - *bufptr++ = 0x20; - *bufptr++ = reg; - *bufptr++ = val; - - return bufptr; -} - -static int dlfb_set_video_mode(struct dlfb_data *dev_info, int width, int height) -{ - int i, ret; - unsigned char j; - char *bufptr = dev_info->buf; - uint8_t *vdata; - - for (i = 0; i < MAX_VMODES; i++) { - printk("INIT VIDEO %d %d %d\n", i, dlfb_video_modes[i].xres, - dlfb_video_modes[i].yres); - if (dlfb_video_modes[i].xres == width - && dlfb_video_modes[i].yres == height) { - - dev_info->base16 = 0; - dev_info->base16d = width * height * (FB_BPP / 8); - - //dev_info->base8 = width * height * (FB_BPP / 8); - - dev_info->base8 = dev_info->base16; - dev_info->base8d = dev_info->base16d; - - /* set encryption key (null) */ - memcpy(dev_info->buf, STD_CHANNEL, 16); - ret = - usb_control_msg(dev_info->udev, - usb_sndctrlpipe(dev_info->udev, 0), - 0x12, (0x02 << 5), 0, 0, - dev_info->buf, 16, 0); - printk("ret control msg 1 (STD_CHANNEL): %d\n", ret); - - /* set registers */ - bufptr = dlfb_set_register(bufptr, 0xFF, 0x00); - - /* set color depth */ - bufptr = dlfb_set_register(bufptr, 0x00, 0x00); - - /* set addresses */ - bufptr = - dlfb_set_register(bufptr, 0x20, - (char)(dev_info->base16 >> 16)); - bufptr = - dlfb_set_register(bufptr, 0x21, - (char)(dev_info->base16 >> 8)); - bufptr = - dlfb_set_register(bufptr, 0x22, - (char)(dev_info->base16)); - - bufptr = - dlfb_set_register(bufptr, 0x26, - (char)(dev_info->base8 >> 16)); - bufptr = - dlfb_set_register(bufptr, 0x27, - (char)(dev_info->base8 >> 8)); - bufptr = - dlfb_set_register(bufptr, 0x28, - (char)(dev_info->base8)); +#define NR_USB_REQUEST_I2C_SUB_IO 0x02 +#define NR_USB_REQUEST_CHANNEL 0x12 - /* set video mode */ - vdata = (uint8_t *)&dlfb_video_modes[i]; - for (j = 0; j < 29; j++) - bufptr = dlfb_set_register(bufptr, j, vdata[j]); +/* -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) - /* blank */ - bufptr = dlfb_set_register(bufptr, 0x1F, 0x00); +#define GET_URB_TIMEOUT HZ +#define FREE_URB_TIMEOUT (HZ*2) - /* end registers */ - bufptr = dlfb_set_register(bufptr, 0xFF, 0xFF); +#define BPP 2 +#define MAX_CMD_PIXELS 255 - /* send */ - ret = dlfb_bulk_msg(dev_info, bufptr - dev_info->buf); - printk("ret bulk 2: %d %td\n", ret, - bufptr - dev_info->buf); +#define RLX_HEADER_BYTES 7 +#define MIN_RLX_PIX_BYTES 4 +#define MIN_RLX_CMD_BYTES (RLX_HEADER_BYTES + MIN_RLX_PIX_BYTES) - /* flush */ - ret = dlfb_bulk_msg(dev_info, 0); - printk("ret bulk 3: %d\n", ret); +#define RLE_HEADER_BYTES 6 +#define MIN_RLE_PIX_BYTES 3 +#define MIN_RLE_CMD_BYTES (RLE_HEADER_BYTES + MIN_RLE_PIX_BYTES) - dev_info->screen_size = width * height * (FB_BPP / 8); - dev_info->line_length = width * (FB_BPP / 8); +#define RAW_HEADER_BYTES 6 +#define MIN_RAW_PIX_BYTES 2 +#define MIN_RAW_CMD_BYTES (RAW_HEADER_BYTES + MIN_RAW_PIX_BYTES) - return 0; - } - } +/* 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(x-(a-1), a) - return -1; -} +/* remove once this gets added to sysfs.h */ +#define __ATTR_RW(attr) __ATTR(attr, 0644, attr##_show, attr##_store) +#define dl_err(format, arg...) \ + dev_err(dev->gdev, "dlfb: " format, ## arg) +#define dl_warn(format, arg...) \ + dev_warn(dev->gdev, "dlfb: " format, ## arg) +#define dl_notice(format, arg...) \ + dev_notice(dev->gdev, "dlfb: " format, ## arg) +#define dl_info(format, arg...) \ + dev_info(dev->gdev, "dlfb: " format, ## arg) #endif |