script: Lenovo Legion Go display configuration

scripts/00-gamescope/displays/lenovo.legiongo.lcd.lua

@@ -0,0 +1,45 @@
+gamescope.config.known_displays.lenovo_legiongo_lcd = {
+    pretty_name = "Lenovo Legion Go LCD",
+    dynamic_refresh_rates = {
+        60, 144
+    },
+    hdr = {
+        -- Setup some fallbacks for undocking with HDR, meant
+        -- for the internal panel. It does not support HDR.
+        supported = false,
+        force_enabled = false,
+        eotf = gamescope.eotf.gamma22,
+        max_content_light_level = 500,
+        max_frame_average_luminance = 500,
+        min_content_light_level = 0.5
+    },
+    -- Use the EDID colorimetry for now, but someone should check
+    -- if the EDID colorimetry truly matches what the display is capable of.
+    dynamic_modegen = function(base_mode, refresh)
+        debug("Generating mode "..refresh.."Hz for Lenovo Legion Go LCD")
+        local mode = base_mode
+
+        -- These are only tuned for 1600x2560
+        gamescope.modegen.set_resolution(mode, 1600, 2560)
+
+        -- Horizontal timings: Hfront, Hsync, Hback
+        gamescope.modegen.set_h_timings(mode, 60, 30, 130)
+        -- Vertical timings: Vfront, Vsync, Vback
+        gamescope.modegen.set_v_timings(mode, 30, 4, 96)
+
+        mode.clock = gamescope.modegen.calc_max_clock(mode, refresh)
+        mode.vrefresh = gamescope.modegen.calc_vrefresh(mode)
+
+        return mode
+    end,
+    matches = function(display)
+        -- There is only a single panel in use on the Lenovo Legion Go.
+        if display.vendor == "LEN" and display.model == "Go Display" and display.product == 0x0001 then
+            debug("[lenovo_legiongo_lcd] Matched vendor: "..display.vendor.." model: "..display.model.." product: "..display.product)
+            return 5000
+        end
+        return -1
+    end
+}
+debug("Registered Lenovo Legion Go LCD as a known display")
+--debug(inspect(gamescope.config.known_displays.lenovo_legiongo_lcd))