drivers/gpu/drm/drm_panel_orientation_quirks.c

   1 /* SPDX-License-Identifier: MIT */
   2 /*
   3  * drm_panel_orientation_quirks.c -- Quirks for non-normal panel orientation
   4  *
   5  * Copyright (C) 2017 Hans de Goede <hdegoede@redhat.com>
   6  *
   7  * Note the quirks in this file are shared with fbdev/efifb and as such
   8  * must not depend on other drm code.
   9  */
  10
  11 #include <linux/dmi.h>
  12 #include <linux/module.h>
  13 #include <drm/drm_connector.h>
  14 #include <drm/drm_utils.h>
  15
  16 #ifdef CONFIG_DMI
  17
  18 /*
  19  * Some x86 clamshell design devices use portrait tablet screens and a display
  20  * engine which cannot rotate in hardware, so we need to rotate the fbcon to
  21  * compensate. Unfortunately these (cheap) devices also typically have quite
  22  * generic DMI data, so we match on a combination of DMI data, screen resolution
  23  * and a list of known BIOS dates to avoid false positives.
  24  */
  25
  26 struct drm_dmi_panel_orientation_data {
  27         int width;
  28         int height;
  29         const char * const *bios_dates;
  30         int orientation;
  31 };
  32
  33 static const struct drm_dmi_panel_orientation_data asus_t100ha = {
  34         .width = 800,
  35         .height = 1280,
  36         .orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP,
  37 };
  38
  39 static const struct drm_dmi_panel_orientation_data gpd_micropc = {
  40         .width = 720,
  41         .height = 1280,
  42         .bios_dates = (const char * const []){ "04/26/2019",
  43                 NULL },
  44         .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
  45 };
  46
  47 static const struct drm_dmi_panel_orientation_data gpd_pocket = {
  48         .width = 1200,
  49         .height = 1920,
  50         .bios_dates = (const char * const []){ "05/26/2017", "06/28/2017",
  51                 "07/05/2017", "08/07/2017", NULL },
  52         .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
  53 };
  54
  55 static const struct drm_dmi_panel_orientation_data gpd_pocket2 = {
  56         .width = 1200,
  57         .height = 1920,
  58         .bios_dates = (const char * const []){ "06/28/2018", "08/28/2018",
  59                 "12/07/2018", NULL },
  60         .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
  61 };
  62
  63 static const struct drm_dmi_panel_orientation_data gpd_win = {
  64         .width = 720,
  65         .height = 1280,
  66         .bios_dates = (const char * const []){
  67                 "10/25/2016", "11/18/2016", "12/23/2016", "12/26/2016",
  68                 "02/21/2017", "03/20/2017", "05/25/2017", NULL },
  69         .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
  70 };
  71
  72 static const struct drm_dmi_panel_orientation_data gpd_win2 = {
  73         .width = 720,
  74         .height = 1280,
  75         .bios_dates = (const char * const []){
  76                 "12/07/2017", "05/24/2018", "06/29/2018", NULL },
  77         .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
  78 };
  79
  80 static const struct drm_dmi_panel_orientation_data itworks_tw891 = {
  81         .width = 800,
  82         .height = 1280,
  83         .bios_dates = (const char * const []){ "10/16/2015", NULL },
  84         .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
  85 };
  86
  87 static const struct drm_dmi_panel_orientation_data lcd720x1280_rightside_up = {
  88         .width = 720,
  89         .height = 1280,
  90         .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
  91 };
  92
  93 static const struct drm_dmi_panel_orientation_data lcd800x1280_rightside_up = {
  94         .width = 800,
  95         .height = 1280,
  96         .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
  97 };
  98
  99 static const struct drm_dmi_panel_orientation_data lcd1200x1920_rightside_up = {
 100         .width = 1200,
 101         .height = 1920,
 102         .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
 103 };
 104
 105 static const struct dmi_system_id orientation_data[] = {
 106         {       /* Acer One 10 (S1003) */
 107                 .matches = {
 108                   DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
 109                   DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
 110                 },
 111                 .driver_data = (void *)&lcd800x1280_rightside_up,
 112         }, {    /* Asus T100HA */
 113                 .matches = {
 114                   DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 115                   DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100HAN"),
 116                 },
 117                 .driver_data = (void *)&asus_t100ha,
 118         }, {    /* Asus T101HA */
 119                 .matches = {
 120                   DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 121                   DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T101HA"),
 122                 },
 123                 .driver_data = (void *)&lcd800x1280_rightside_up,
 124         }, {    /* Asus T103HAF */
 125                 .matches = {
 126                   DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
 127                   DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T103HAF"),
 128                 },
 129                 .driver_data = (void *)&lcd800x1280_rightside_up,
 130         }, {    /* GPD MicroPC (generic strings, also match on bios date) */
 131                 .matches = {
 132                   DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
 133                   DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
 134                   DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
 135                   DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
 136                 },
 137                 .driver_data = (void *)&gpd_micropc,
 138         }, {    /* GPD MicroPC (later BIOS versions with proper DMI strings) */
 139                 .matches = {
 140                   DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
 141                   DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "MicroPC"),
 142                 },
 143                 .driver_data = (void *)&lcd720x1280_rightside_up,
 144         }, {    /*
 145                  * GPD Pocket, note that the the DMI data is less generic then
 146                  * it seems, devices with a board-vendor of "AMI Corporation"
 147                  * are quite rare, as are devices which have both board- *and*
 148                  * product-id set to "Default String"
 149                  */
 150                 .matches = {
 151                   DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
 152                   DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
 153                   DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
 154                   DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
 155                 },
 156                 .driver_data = (void *)&gpd_pocket,
 157         }, {    /* GPD Pocket 2 (generic strings, also match on bios date) */
 158                 .matches = {
 159                   DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
 160                   DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
 161                   DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
 162                   DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
 163                 },
 164                 .driver_data = (void *)&gpd_pocket2,
 165         }, {    /* GPD Win (same note on DMI match as GPD Pocket) */
 166                 .matches = {
 167                   DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
 168                   DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
 169                   DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
 170                   DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
 171                 },
 172                 .driver_data = (void *)&gpd_win,
 173         }, {    /* GPD Win 2 (too generic strings, also match on bios date) */
 174                 .matches = {
 175                   DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
 176                   DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
 177                   DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
 178                   DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
 179                 },
 180                 .driver_data = (void *)&gpd_win2,
 181         }, {    /* I.T.Works TW891 */
 182                 .matches = {
 183                   DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
 184                   DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TW891"),
 185                   DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
 186                   DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"),
 187                 },
 188                 .driver_data = (void *)&itworks_tw891,
 189         }, {    /*
 190                  * Lenovo Ideapad Miix 310 laptop, only some production batches
 191                  * have a portrait screen, the resolution checks makes the quirk
 192                  * apply only to those batches.
 193                  */
 194                 .matches = {
 195                   DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 196                   DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80SG"),
 197                   DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"),
 198                 },
 199                 .driver_data = (void *)&lcd800x1280_rightside_up,
 200         }, {    /* Lenovo Ideapad Miix 320 */
 201                 .matches = {
 202                   DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 203                   DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80XF"),
 204                   DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
 205                 },
 206                 .driver_data = (void *)&lcd800x1280_rightside_up,
 207         }, {    /* Lenovo Ideapad D330 */
 208                 .matches = {
 209                   DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
 210                   DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "81H3"),
 211                   DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"),
 212                 },
 213                 .driver_data = (void *)&lcd1200x1920_rightside_up,
 214         }, {    /* VIOS LTH17 */
 215                 .matches = {
 216                   DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VIOS"),
 217                   DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "LTH17"),
 218                 },
 219                 .driver_data = (void *)&lcd800x1280_rightside_up,
 220         },
 221         {}
 222 };
 223
 224 /**
 225  * drm_get_panel_orientation_quirk - Check for panel orientation quirks
 226  * @width: width in pixels of the panel
 227  * @height: height in pixels of the panel
 228  *
 229  * This function checks for platform specific (e.g. DMI based) quirks
 230  * providing info on panel_orientation for systems where this cannot be
 231  * probed from the hard-/firm-ware. To avoid false-positive this function
 232  * takes the panel resolution as argument and checks that against the
 233  * resolution expected by the quirk-table entry.
 234  *
 235  * Note this function is also used outside of the drm-subsys, by for example
 236  * the efifb code. Because of this this function gets compiled into its own
 237  * kernel-module when built as a module.
 238  *
 239  * Returns:
 240  * A DRM_MODE_PANEL_ORIENTATION_* value if there is a quirk for this system,
 241  * or DRM_MODE_PANEL_ORIENTATION_UNKNOWN if there is no quirk.
 242  */
 243 int drm_get_panel_orientation_quirk(int width, int height)
 244 {
 245         const struct dmi_system_id *match;
 246         const struct drm_dmi_panel_orientation_data *data;
 247         const char *bios_date;
 248         int i;
 249
 250         for (match = dmi_first_match(orientation_data);
 251              match;
 252              match = dmi_first_match(match + 1)) {
 253                 data = match->driver_data;
 254
 255                 if (data->width != width ||
 256                     data->height != height)
 257                         continue;
 258
 259                 if (!data->bios_dates)
 260                         return data->orientation;
 261
 262                 bios_date = dmi_get_system_info(DMI_BIOS_DATE);
 263                 if (!bios_date)
 264                         continue;
 265
 266                 i = match_string(data->bios_dates, -1, bios_date);
 267                 if (i >= 0)
 268                         return data->orientation;
 269         }
 270
 271         return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
 272 }
 273 EXPORT_SYMBOL(drm_get_panel_orientation_quirk);
 274
 275 #else
 276
 277 /* There are no quirks for non x86 devices yet */
 278 int drm_get_panel_orientation_quirk(int width, int height)
 279 {
 280         return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
 281 }
 282 EXPORT_SYMBOL(drm_get_panel_orientation_quirk);
 283
 284 #endif
 285
 286 MODULE_LICENSE("Dual MIT/GPL");