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 }, { /* Kogan Atlas 2-in-1 D300 */ 190 .matches = { 191 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Kogan"), 192 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "KALAP10D300EA"), 193 }, 194 .driver_data = (void *)&lcd800x1280_rightside_up, 195 }, { /* 196 * Lenovo Ideapad Miix 310 laptop, only some production batches 197 * have a portrait screen, the resolution checks makes the quirk 198 * apply only to those batches. 199 */ 200 .matches = { 201 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), 202 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80SG"), 203 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"), 204 }, 205 .driver_data = (void *)&lcd800x1280_rightside_up, 206 }, { /* Lenovo Ideapad Miix 320 */ 207 .matches = { 208 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), 209 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80XF"), 210 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"), 211 }, 212 .driver_data = (void *)&lcd800x1280_rightside_up, 213 }, { /* Lenovo Ideapad D330 */ 214 .matches = { 215 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), 216 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "81H3"), 217 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"), 218 }, 219 .driver_data = (void *)&lcd1200x1920_rightside_up, 220 }, { /* VIOS LTH17 */ 221 .matches = { 222 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VIOS"), 223 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "LTH17"), 224 }, 225 .driver_data = (void *)&lcd800x1280_rightside_up, 226 }, 227 {} 228 }; 229 230 /** 231 * drm_get_panel_orientation_quirk - Check for panel orientation quirks 232 * @width: width in pixels of the panel 233 * @height: height in pixels of the panel 234 * 235 * This function checks for platform specific (e.g. DMI based) quirks 236 * providing info on panel_orientation for systems where this cannot be 237 * probed from the hard-/firm-ware. To avoid false-positive this function 238 * takes the panel resolution as argument and checks that against the 239 * resolution expected by the quirk-table entry. 240 * 241 * Note this function is also used outside of the drm-subsys, by for example 242 * the efifb code. Because of this this function gets compiled into its own 243 * kernel-module when built as a module. 244 * 245 * Returns: 246 * A DRM_MODE_PANEL_ORIENTATION_* value if there is a quirk for this system, 247 * or DRM_MODE_PANEL_ORIENTATION_UNKNOWN if there is no quirk. 248 */ 249 int drm_get_panel_orientation_quirk(int width, int height) 250 { 251 const struct dmi_system_id *match; 252 const struct drm_dmi_panel_orientation_data *data; 253 const char *bios_date; 254 int i; 255 256 for (match = dmi_first_match(orientation_data); 257 match; 258 match = dmi_first_match(match + 1)) { 259 data = match->driver_data; 260 261 if (data->width != width || 262 data->height != height) 263 continue; 264 265 if (!data->bios_dates) 266 return data->orientation; 267 268 bios_date = dmi_get_system_info(DMI_BIOS_DATE); 269 if (!bios_date) 270 continue; 271 272 i = match_string(data->bios_dates, -1, bios_date); 273 if (i >= 0) 274 return data->orientation; 275 } 276 277 return DRM_MODE_PANEL_ORIENTATION_UNKNOWN; 278 } 279 EXPORT_SYMBOL(drm_get_panel_orientation_quirk); 280 281 #else 282 283 /* There are no quirks for non x86 devices yet */ 284 int drm_get_panel_orientation_quirk(int width, int height) 285 { 286 return DRM_MODE_PANEL_ORIENTATION_UNKNOWN; 287 } 288 EXPORT_SYMBOL(drm_get_panel_orientation_quirk); 289 290 #endif 291 292 MODULE_LICENSE("Dual MIT/GPL"); 293