/* SPDX-License-Identifier: MIT */ /* * drm_panel_orientation_quirks.c -- Quirks for non-normal panel orientation * * Copyright (C) 2017 Hans de Goede * * Note the quirks in this file are shared with fbdev/efifb and as such * must not depend on other drm code. */ #include #include #include #include #ifdef CONFIG_DMI /* * Some x86 clamshell design devices use portrait tablet screens and a display * engine which cannot rotate in hardware, so we need to rotate the fbcon to * compensate. Unfortunately these (cheap) devices also typically have quite * generic DMI data, so we match on a combination of DMI data, screen resolution * and a list of known BIOS dates to avoid false positives. */ struct drm_dmi_panel_orientation_data { int width; int height; const char * const *bios_dates; int orientation; }; static const struct drm_dmi_panel_orientation_data acer_s1003 = { .width = 800, .height = 1280, .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, }; static const struct drm_dmi_panel_orientation_data asus_t100ha = { .width = 800, .height = 1280, .orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP, }; static const struct drm_dmi_panel_orientation_data gpd_pocket = { .width = 1200, .height = 1920, .bios_dates = (const char * const []){ "05/26/2017", "06/28/2017", "07/05/2017", "08/07/2017", NULL }, .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, }; static const struct drm_dmi_panel_orientation_data gpd_win = { .width = 720, .height = 1280, .bios_dates = (const char * const []){ "10/25/2016", "11/18/2016", "12/23/2016", "12/26/2016", "02/21/2017", "03/20/2017", "05/25/2017", NULL }, .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, }; static const struct drm_dmi_panel_orientation_data gpd_win2 = { .width = 720, .height = 1280, .bios_dates = (const char * const []){ "12/07/2017", "05/24/2018", NULL }, .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, }; static const struct drm_dmi_panel_orientation_data itworks_tw891 = { .width = 800, .height = 1280, .bios_dates = (const char * const []){ "10/16/2015", NULL }, .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, }; static const struct drm_dmi_panel_orientation_data lcd800x1280_rightside_up = { .width = 800, .height = 1280, .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, }; static const struct dmi_system_id orientation_data[] = { { /* Acer One 10 (S1003) */ .matches = { DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"), DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"), }, .driver_data = (void *)&acer_s1003, }, { /* Asus T100HA */ .matches = { DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100HAN"), }, .driver_data = (void *)&asus_t100ha, }, { /* * GPD Pocket, note that the the DMI data is less generic then * it seems, devices with a board-vendor of "AMI Corporation" * are quite rare, as are devices which have both board- *and* * product-id set to "Default String" */ .matches = { DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"), DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), }, .driver_data = (void *)&gpd_pocket, }, { /* GPD Win (same note on DMI match as GPD Pocket) */ .matches = { DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"), DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), }, .driver_data = (void *)&gpd_win, }, { /* GPD Win 2 (too generic strings, also match on bios date) */ .matches = { DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"), DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"), DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), }, .driver_data = (void *)&gpd_win2, }, { /* I.T.Works TW891 */ .matches = { DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."), DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TW891"), DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."), DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"), }, .driver_data = (void *)&itworks_tw891, }, { /* * Lenovo Ideapad Miix 310 laptop, only some production batches * have a portrait screen, the resolution checks makes the quirk * apply only to those batches. */ .matches = { DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80SG"), DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"), }, .driver_data = (void *)&lcd800x1280_rightside_up, }, { /* Lenovo Ideapad Miix 320 */ .matches = { DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80XF"), DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"), }, .driver_data = (void *)&lcd800x1280_rightside_up, }, { /* VIOS LTH17 */ .matches = { DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VIOS"), DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "LTH17"), }, .driver_data = (void *)&lcd800x1280_rightside_up, }, {} }; /** * drm_get_panel_orientation_quirk - Check for panel orientation quirks * @width: width in pixels of the panel * @height: height in pixels of the panel * * This function checks for platform specific (e.g. DMI based) quirks * providing info on panel_orientation for systems where this cannot be * probed from the hard-/firm-ware. To avoid false-positive this function * takes the panel resolution as argument and checks that against the * resolution expected by the quirk-table entry. * * Note this function is also used outside of the drm-subsys, by for example * the efifb code. Because of this this function gets compiled into its own * kernel-module when built as a module. * * Returns: * A DRM_MODE_PANEL_ORIENTATION_* value if there is a quirk for this system, * or DRM_MODE_PANEL_ORIENTATION_UNKNOWN if there is no quirk. */ int drm_get_panel_orientation_quirk(int width, int height) { const struct dmi_system_id *match; const struct drm_dmi_panel_orientation_data *data; const char *bios_date; int i; for (match = dmi_first_match(orientation_data); match; match = dmi_first_match(match + 1)) { data = match->driver_data; if (data->width != width || data->height != height) continue; if (!data->bios_dates) return data->orientation; bios_date = dmi_get_system_info(DMI_BIOS_DATE); if (!bios_date) continue; i = match_string(data->bios_dates, -1, bios_date); if (i >= 0) return data->orientation; } return DRM_MODE_PANEL_ORIENTATION_UNKNOWN; } EXPORT_SYMBOL(drm_get_panel_orientation_quirk); #else /* There are no quirks for non x86 devices yet */ int drm_get_panel_orientation_quirk(int width, int height) { return DRM_MODE_PANEL_ORIENTATION_UNKNOWN; } EXPORT_SYMBOL(drm_get_panel_orientation_quirk); #endif MODULE_LICENSE("Dual MIT/GPL");