1ff76e82cSThomas Zimmermann /* SPDX-License-Identifier: GPL-2.0-only */ 2ff76e82cSThomas Zimmermann 3ff76e82cSThomas Zimmermann #ifndef UDL_PROTO_H 4ff76e82cSThomas Zimmermann #define UDL_PROTO_H 5ff76e82cSThomas Zimmermann 6*ed24ed48SThomas Zimmermann /* Color depth */ 7*ed24ed48SThomas Zimmermann #define UDL_REG_COLORDEPTH 0x00 8ff76e82cSThomas Zimmermann #define UDL_COLORDEPTH_16BPP 0 9*ed24ed48SThomas Zimmermann #define UDL_COLORDEPTH_24BPP 1 10ff76e82cSThomas Zimmermann 119869e40dSThomas Zimmermann /* Display-mode settings */ 129869e40dSThomas Zimmermann #define UDL_REG_XDISPLAYSTART 0x01 139869e40dSThomas Zimmermann #define UDL_REG_XDISPLAYEND 0x03 149869e40dSThomas Zimmermann #define UDL_REG_YDISPLAYSTART 0x05 159869e40dSThomas Zimmermann #define UDL_REG_YDISPLAYEND 0x07 169869e40dSThomas Zimmermann #define UDL_REG_XENDCOUNT 0x09 179869e40dSThomas Zimmermann #define UDL_REG_HSYNCSTART 0x0b 189869e40dSThomas Zimmermann #define UDL_REG_HSYNCEND 0x0d 199869e40dSThomas Zimmermann #define UDL_REG_HPIXELS 0x0f 209869e40dSThomas Zimmermann #define UDL_REG_YENDCOUNT 0x11 219869e40dSThomas Zimmermann #define UDL_REG_VSYNCSTART 0x13 229869e40dSThomas Zimmermann #define UDL_REG_VSYNCEND 0x15 239869e40dSThomas Zimmermann #define UDL_REG_VPIXELS 0x17 249869e40dSThomas Zimmermann #define UDL_REG_PIXELCLOCK5KHZ 0x1b 259869e40dSThomas Zimmermann 26ff76e82cSThomas Zimmermann /* On/Off for driving the DisplayLink framebuffer to the display */ 27ff76e82cSThomas Zimmermann #define UDL_REG_BLANKMODE 0x1f 28ff76e82cSThomas Zimmermann #define UDL_BLANKMODE_ON 0x00 /* hsync and vsync on, visible */ 29ff76e82cSThomas Zimmermann #define UDL_BLANKMODE_BLANKED 0x01 /* hsync and vsync on, blanked */ 30ff76e82cSThomas Zimmermann #define UDL_BLANKMODE_VSYNC_OFF 0x03 /* vsync off, blanked */ 31ff76e82cSThomas Zimmermann #define UDL_BLANKMODE_HSYNC_OFF 0x05 /* hsync off, blanked */ 32ff76e82cSThomas Zimmermann #define UDL_BLANKMODE_POWERDOWN 0x07 /* powered off; requires modeset */ 33ff76e82cSThomas Zimmermann 34ff76e82cSThomas Zimmermann #endif 35