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 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 *)&acer_s1003, 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 }, { /* GPD MicroPC (generic strings, also match on bios date) */ 119 .matches = { 120 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"), 121 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), 122 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"), 123 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), 124 }, 125 .driver_data = (void *)&gpd_micropc, 126 }, { /* 127 * GPD Pocket, note that the the DMI data is less generic then 128 * it seems, devices with a board-vendor of "AMI Corporation" 129 * are quite rare, as are devices which have both board- *and* 130 * product-id set to "Default String" 131 */ 132 .matches = { 133 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), 134 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), 135 DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"), 136 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), 137 }, 138 .driver_data = (void *)&gpd_pocket, 139 }, { /* GPD Pocket 2 (generic strings, also match on bios date) */ 140 .matches = { 141 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"), 142 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), 143 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"), 144 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), 145 }, 146 .driver_data = (void *)&gpd_pocket2, 147 }, { /* GPD Win (same note on DMI match as GPD Pocket) */ 148 .matches = { 149 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), 150 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), 151 DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"), 152 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), 153 }, 154 .driver_data = (void *)&gpd_win, 155 }, { /* GPD Win 2 (too generic strings, also match on bios date) */ 156 .matches = { 157 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"), 158 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), 159 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"), 160 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), 161 }, 162 .driver_data = (void *)&gpd_win2, 163 }, { /* I.T.Works TW891 */ 164 .matches = { 165 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."), 166 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TW891"), 167 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."), 168 DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"), 169 }, 170 .driver_data = (void *)&itworks_tw891, 171 }, { /* 172 * Lenovo Ideapad Miix 310 laptop, only some production batches 173 * have a portrait screen, the resolution checks makes the quirk 174 * apply only to those batches. 175 */ 176 .matches = { 177 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), 178 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80SG"), 179 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"), 180 }, 181 .driver_data = (void *)&lcd800x1280_rightside_up, 182 }, { /* Lenovo Ideapad Miix 320 */ 183 .matches = { 184 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), 185 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80XF"), 186 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"), 187 }, 188 .driver_data = (void *)&lcd800x1280_rightside_up, 189 }, { /* Lenovo Ideapad D330 */ 190 .matches = { 191 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), 192 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "81H3"), 193 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"), 194 }, 195 .driver_data = (void *)&lcd1200x1920_rightside_up, 196 }, { /* VIOS LTH17 */ 197 .matches = { 198 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VIOS"), 199 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "LTH17"), 200 }, 201 .driver_data = (void *)&lcd800x1280_rightside_up, 202 }, 203 {} 204 }; 205 206 /** 207 * drm_get_panel_orientation_quirk - Check for panel orientation quirks 208 * @width: width in pixels of the panel 209 * @height: height in pixels of the panel 210 * 211 * This function checks for platform specific (e.g. DMI based) quirks 212 * providing info on panel_orientation for systems where this cannot be 213 * probed from the hard-/firm-ware. To avoid false-positive this function 214 * takes the panel resolution as argument and checks that against the 215 * resolution expected by the quirk-table entry. 216 * 217 * Note this function is also used outside of the drm-subsys, by for example 218 * the efifb code. Because of this this function gets compiled into its own 219 * kernel-module when built as a module. 220 * 221 * Returns: 222 * A DRM_MODE_PANEL_ORIENTATION_* value if there is a quirk for this system, 223 * or DRM_MODE_PANEL_ORIENTATION_UNKNOWN if there is no quirk. 224 */ 225 int drm_get_panel_orientation_quirk(int width, int height) 226 { 227 const struct dmi_system_id *match; 228 const struct drm_dmi_panel_orientation_data *data; 229 const char *bios_date; 230 int i; 231 232 for (match = dmi_first_match(orientation_data); 233 match; 234 match = dmi_first_match(match + 1)) { 235 data = match->driver_data; 236 237 if (data->width != width || 238 data->height != height) 239 continue; 240 241 if (!data->bios_dates) 242 return data->orientation; 243 244 bios_date = dmi_get_system_info(DMI_BIOS_DATE); 245 if (!bios_date) 246 continue; 247 248 i = match_string(data->bios_dates, -1, bios_date); 249 if (i >= 0) 250 return data->orientation; 251 } 252 253 return DRM_MODE_PANEL_ORIENTATION_UNKNOWN; 254 } 255 EXPORT_SYMBOL(drm_get_panel_orientation_quirk); 256 257 #else 258 259 /* There are no quirks for non x86 devices yet */ 260 int drm_get_panel_orientation_quirk(int width, int height) 261 { 262 return DRM_MODE_PANEL_ORIENTATION_UNKNOWN; 263 } 264 EXPORT_SYMBOL(drm_get_panel_orientation_quirk); 265 266 #endif 267 268 MODULE_LICENSE("Dual MIT/GPL"); 269