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 acer_s1003 = { 34 .width = 800, 35 .height = 1280, 36 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 37 }; 38 39 static const struct drm_dmi_panel_orientation_data asus_t100ha = { 40 .width = 800, 41 .height = 1280, 42 .orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP, 43 }; 44 45 static const struct drm_dmi_panel_orientation_data gpd_micropc = { 46 .width = 720, 47 .height = 1280, 48 .bios_dates = (const char * const []){ "04/26/2019", 49 NULL }, 50 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 51 }; 52 53 static const struct drm_dmi_panel_orientation_data gpd_pocket = { 54 .width = 1200, 55 .height = 1920, 56 .bios_dates = (const char * const []){ "05/26/2017", "06/28/2017", 57 "07/05/2017", "08/07/2017", NULL }, 58 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 59 }; 60 61 static const struct drm_dmi_panel_orientation_data gpd_pocket2 = { 62 .width = 1200, 63 .height = 1920, 64 .bios_dates = (const char * const []){ "06/28/2018", "08/28/2018", 65 "12/07/2018", NULL }, 66 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 67 }; 68 69 static const struct drm_dmi_panel_orientation_data gpd_win = { 70 .width = 720, 71 .height = 1280, 72 .bios_dates = (const char * const []){ 73 "10/25/2016", "11/18/2016", "12/23/2016", "12/26/2016", 74 "02/21/2017", "03/20/2017", "05/25/2017", NULL }, 75 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 76 }; 77 78 static const struct drm_dmi_panel_orientation_data gpd_win2 = { 79 .width = 720, 80 .height = 1280, 81 .bios_dates = (const char * const []){ 82 "12/07/2017", "05/24/2018", "06/29/2018", NULL }, 83 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 84 }; 85 86 static const struct drm_dmi_panel_orientation_data itworks_tw891 = { 87 .width = 800, 88 .height = 1280, 89 .bios_dates = (const char * const []){ "10/16/2015", NULL }, 90 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 91 }; 92 93 static const struct drm_dmi_panel_orientation_data lcd720x1280_rightside_up = { 94 .width = 720, 95 .height = 1280, 96 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 97 }; 98 99 static const struct drm_dmi_panel_orientation_data lcd800x1280_rightside_up = { 100 .width = 800, 101 .height = 1280, 102 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 103 }; 104 105 static const struct drm_dmi_panel_orientation_data lcd1200x1920_rightside_up = { 106 .width = 1200, 107 .height = 1920, 108 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 109 }; 110 111 static const struct dmi_system_id orientation_data[] = { 112 { /* Acer One 10 (S1003) */ 113 .matches = { 114 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"), 115 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"), 116 }, 117 .driver_data = (void *)&acer_s1003, 118 }, { /* Asus T100HA */ 119 .matches = { 120 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 121 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100HAN"), 122 }, 123 .driver_data = (void *)&asus_t100ha, 124 }, { /* GPD MicroPC (generic strings, also match on bios date) */ 125 .matches = { 126 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"), 127 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), 128 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"), 129 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), 130 }, 131 .driver_data = (void *)&gpd_micropc, 132 }, { /* GPD MicroPC (later BIOS versions with proper DMI strings) */ 133 .matches = { 134 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"), 135 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "MicroPC"), 136 }, 137 .driver_data = (void *)&lcd720x1280_rightside_up, 138 }, { /* 139 * GPD Pocket, note that the the DMI data is less generic then 140 * it seems, devices with a board-vendor of "AMI Corporation" 141 * are quite rare, as are devices which have both board- *and* 142 * product-id set to "Default String" 143 */ 144 .matches = { 145 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), 146 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), 147 DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"), 148 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), 149 }, 150 .driver_data = (void *)&gpd_pocket, 151 }, { /* GPD Pocket 2 (generic strings, also match on bios date) */ 152 .matches = { 153 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"), 154 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), 155 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"), 156 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), 157 }, 158 .driver_data = (void *)&gpd_pocket2, 159 }, { /* GPD Win (same note on DMI match as GPD Pocket) */ 160 .matches = { 161 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), 162 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), 163 DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"), 164 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), 165 }, 166 .driver_data = (void *)&gpd_win, 167 }, { /* GPD Win 2 (too generic strings, also match on bios date) */ 168 .matches = { 169 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"), 170 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), 171 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"), 172 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), 173 }, 174 .driver_data = (void *)&gpd_win2, 175 }, { /* I.T.Works TW891 */ 176 .matches = { 177 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."), 178 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TW891"), 179 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."), 180 DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"), 181 }, 182 .driver_data = (void *)&itworks_tw891, 183 }, { /* 184 * Lenovo Ideapad Miix 310 laptop, only some production batches 185 * have a portrait screen, the resolution checks makes the quirk 186 * apply only to those batches. 187 */ 188 .matches = { 189 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), 190 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80SG"), 191 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"), 192 }, 193 .driver_data = (void *)&lcd800x1280_rightside_up, 194 }, { /* Lenovo Ideapad Miix 320 */ 195 .matches = { 196 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), 197 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80XF"), 198 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"), 199 }, 200 .driver_data = (void *)&lcd800x1280_rightside_up, 201 }, { /* Lenovo Ideapad D330 */ 202 .matches = { 203 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), 204 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "81H3"), 205 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"), 206 }, 207 .driver_data = (void *)&lcd1200x1920_rightside_up, 208 }, { /* VIOS LTH17 */ 209 .matches = { 210 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VIOS"), 211 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "LTH17"), 212 }, 213 .driver_data = (void *)&lcd800x1280_rightside_up, 214 }, 215 {} 216 }; 217 218 /** 219 * drm_get_panel_orientation_quirk - Check for panel orientation quirks 220 * @width: width in pixels of the panel 221 * @height: height in pixels of the panel 222 * 223 * This function checks for platform specific (e.g. DMI based) quirks 224 * providing info on panel_orientation for systems where this cannot be 225 * probed from the hard-/firm-ware. To avoid false-positive this function 226 * takes the panel resolution as argument and checks that against the 227 * resolution expected by the quirk-table entry. 228 * 229 * Note this function is also used outside of the drm-subsys, by for example 230 * the efifb code. Because of this this function gets compiled into its own 231 * kernel-module when built as a module. 232 * 233 * Returns: 234 * A DRM_MODE_PANEL_ORIENTATION_* value if there is a quirk for this system, 235 * or DRM_MODE_PANEL_ORIENTATION_UNKNOWN if there is no quirk. 236 */ 237 int drm_get_panel_orientation_quirk(int width, int height) 238 { 239 const struct dmi_system_id *match; 240 const struct drm_dmi_panel_orientation_data *data; 241 const char *bios_date; 242 int i; 243 244 for (match = dmi_first_match(orientation_data); 245 match; 246 match = dmi_first_match(match + 1)) { 247 data = match->driver_data; 248 249 if (data->width != width || 250 data->height != height) 251 continue; 252 253 if (!data->bios_dates) 254 return data->orientation; 255 256 bios_date = dmi_get_system_info(DMI_BIOS_DATE); 257 if (!bios_date) 258 continue; 259 260 i = match_string(data->bios_dates, -1, bios_date); 261 if (i >= 0) 262 return data->orientation; 263 } 264 265 return DRM_MODE_PANEL_ORIENTATION_UNKNOWN; 266 } 267 EXPORT_SYMBOL(drm_get_panel_orientation_quirk); 268 269 #else 270 271 /* There are no quirks for non x86 devices yet */ 272 int drm_get_panel_orientation_quirk(int width, int height) 273 { 274 return DRM_MODE_PANEL_ORIENTATION_UNKNOWN; 275 } 276 EXPORT_SYMBOL(drm_get_panel_orientation_quirk); 277 278 #endif 279 280 MODULE_LICENSE("Dual MIT/GPL"); 281