1 /* $NetBSD: drm_panel_orientation_quirks.c,v 1.2 2021/12/18 23:44:57 riastradh Exp $ */ 2 3 /* SPDX-License-Identifier: MIT */ 4 /* 5 * drm_panel_orientation_quirks.c -- Quirks for non-normal panel orientation 6 * 7 * Copyright (C) 2017 Hans de Goede <hdegoede (at) redhat.com> 8 * 9 * Note the quirks in this file are shared with fbdev/efifb and as such 10 * must not depend on other drm code. 11 */ 12 13 #include <sys/cdefs.h> 14 __KERNEL_RCSID(0, "$NetBSD: drm_panel_orientation_quirks.c,v 1.2 2021/12/18 23:44:57 riastradh Exp $"); 15 16 #include <linux/dmi.h> 17 #include <linux/module.h> 18 #include <drm/drm_connector.h> 19 #include <drm/drm_utils.h> 20 21 #ifdef CONFIG_DMI 22 23 /* 24 * Some x86 clamshell design devices use portrait tablet screens and a display 25 * engine which cannot rotate in hardware, so we need to rotate the fbcon to 26 * compensate. Unfortunately these (cheap) devices also typically have quite 27 * generic DMI data, so we match on a combination of DMI data, screen resolution 28 * and a list of known BIOS dates to avoid false positives. 29 */ 30 31 struct drm_dmi_panel_orientation_data { 32 int width; 33 int height; 34 const char * const *bios_dates; 35 int orientation; 36 }; 37 38 static const struct drm_dmi_panel_orientation_data acer_s1003 = { 39 .width = 800, 40 .height = 1280, 41 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 42 }; 43 44 static const struct drm_dmi_panel_orientation_data asus_t100ha = { 45 .width = 800, 46 .height = 1280, 47 .orientation = DRM_MODE_PANEL_ORIENTATION_LEFT_UP, 48 }; 49 50 static const struct drm_dmi_panel_orientation_data gpd_micropc = { 51 .width = 720, 52 .height = 1280, 53 .bios_dates = (const char * const []){ "04/26/2019", 54 NULL }, 55 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 56 }; 57 58 static const struct drm_dmi_panel_orientation_data gpd_pocket = { 59 .width = 1200, 60 .height = 1920, 61 .bios_dates = (const char * const []){ "05/26/2017", "06/28/2017", 62 "07/05/2017", "08/07/2017", NULL }, 63 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 64 }; 65 66 static const struct drm_dmi_panel_orientation_data gpd_pocket2 = { 67 .width = 1200, 68 .height = 1920, 69 .bios_dates = (const char * const []){ "06/28/2018", "08/28/2018", 70 "12/07/2018", NULL }, 71 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 72 }; 73 74 static const struct drm_dmi_panel_orientation_data gpd_win = { 75 .width = 720, 76 .height = 1280, 77 .bios_dates = (const char * const []){ 78 "10/25/2016", "11/18/2016", "12/23/2016", "12/26/2016", 79 "02/21/2017", "03/20/2017", "05/25/2017", NULL }, 80 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 81 }; 82 83 static const struct drm_dmi_panel_orientation_data gpd_win2 = { 84 .width = 720, 85 .height = 1280, 86 .bios_dates = (const char * const []){ 87 "12/07/2017", "05/24/2018", "06/29/2018", NULL }, 88 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 89 }; 90 91 static const struct drm_dmi_panel_orientation_data itworks_tw891 = { 92 .width = 800, 93 .height = 1280, 94 .bios_dates = (const char * const []){ "10/16/2015", NULL }, 95 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 96 }; 97 98 static const struct drm_dmi_panel_orientation_data lcd720x1280_rightside_up = { 99 .width = 720, 100 .height = 1280, 101 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 102 }; 103 104 static const struct drm_dmi_panel_orientation_data lcd800x1280_rightside_up = { 105 .width = 800, 106 .height = 1280, 107 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 108 }; 109 110 static const struct drm_dmi_panel_orientation_data lcd1200x1920_rightside_up = { 111 .width = 1200, 112 .height = 1920, 113 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP, 114 }; 115 116 static const struct dmi_system_id orientation_data[] = { 117 { /* Acer One 10 (S1003) */ 118 .matches = { 119 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"), 120 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"), 121 }, 122 .driver_data = (void *)&acer_s1003, 123 }, { /* Asus T100HA */ 124 .matches = { 125 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."), 126 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100HAN"), 127 }, 128 .driver_data = (void *)&asus_t100ha, 129 }, { /* GPD MicroPC (generic strings, also match on bios date) */ 130 .matches = { 131 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"), 132 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), 133 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"), 134 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), 135 }, 136 .driver_data = (void *)&gpd_micropc, 137 }, { /* GPD MicroPC (later BIOS versions with proper DMI strings) */ 138 .matches = { 139 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"), 140 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "MicroPC"), 141 }, 142 .driver_data = (void *)&lcd720x1280_rightside_up, 143 }, { /* 144 * GPD Pocket, note that the the DMI data is less generic then 145 * it seems, devices with a board-vendor of "AMI Corporation" 146 * are quite rare, as are devices which have both board- *and* 147 * product-id set to "Default String" 148 */ 149 .matches = { 150 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), 151 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), 152 DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"), 153 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), 154 }, 155 .driver_data = (void *)&gpd_pocket, 156 }, { /* GPD Pocket 2 (generic strings, also match on bios date) */ 157 .matches = { 158 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"), 159 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), 160 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"), 161 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), 162 }, 163 .driver_data = (void *)&gpd_pocket2, 164 }, { /* GPD Win (same note on DMI match as GPD Pocket) */ 165 .matches = { 166 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"), 167 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), 168 DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"), 169 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), 170 }, 171 .driver_data = (void *)&gpd_win, 172 }, { /* GPD Win 2 (too generic strings, also match on bios date) */ 173 .matches = { 174 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"), 175 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"), 176 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"), 177 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"), 178 }, 179 .driver_data = (void *)&gpd_win2, 180 }, { /* I.T.Works TW891 */ 181 .matches = { 182 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."), 183 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TW891"), 184 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."), 185 DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"), 186 }, 187 .driver_data = (void *)&itworks_tw891, 188 }, { /* 189 * Lenovo Ideapad Miix 310 laptop, only some production batches 190 * have a portrait screen, the resolution checks makes the quirk 191 * apply only to those batches. 192 */ 193 .matches = { 194 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), 195 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80SG"), 196 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"), 197 }, 198 .driver_data = (void *)&lcd800x1280_rightside_up, 199 }, { /* Lenovo Ideapad Miix 320 */ 200 .matches = { 201 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), 202 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80XF"), 203 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"), 204 }, 205 .driver_data = (void *)&lcd800x1280_rightside_up, 206 }, { /* Lenovo Ideapad D330 */ 207 .matches = { 208 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"), 209 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "81H3"), 210 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"), 211 }, 212 .driver_data = (void *)&lcd1200x1920_rightside_up, 213 }, { /* VIOS LTH17 */ 214 .matches = { 215 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VIOS"), 216 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "LTH17"), 217 }, 218 .driver_data = (void *)&lcd800x1280_rightside_up, 219 }, 220 {} 221 }; 222 223 /** 224 * drm_get_panel_orientation_quirk - Check for panel orientation quirks 225 * @width: width in pixels of the panel 226 * @height: height in pixels of the panel 227 * 228 * This function checks for platform specific (e.g. DMI based) quirks 229 * providing info on panel_orientation for systems where this cannot be 230 * probed from the hard-/firm-ware. To avoid false-positive this function 231 * takes the panel resolution as argument and checks that against the 232 * resolution expected by the quirk-table entry. 233 * 234 * Note this function is also used outside of the drm-subsys, by for example 235 * the efifb code. Because of this this function gets compiled into its own 236 * kernel-module when built as a module. 237 * 238 * Returns: 239 * A DRM_MODE_PANEL_ORIENTATION_* value if there is a quirk for this system, 240 * or DRM_MODE_PANEL_ORIENTATION_UNKNOWN if there is no quirk. 241 */ 242 int drm_get_panel_orientation_quirk(int width, int height) 243 { 244 const struct dmi_system_id *match; 245 const struct drm_dmi_panel_orientation_data *data; 246 const char *bios_date; 247 int i; 248 249 for (match = dmi_first_match(orientation_data); 250 match; 251 match = dmi_first_match(match + 1)) { 252 data = match->driver_data; 253 254 if (data->width != width || 255 data->height != height) 256 continue; 257 258 if (!data->bios_dates) 259 return data->orientation; 260 261 bios_date = dmi_get_system_info(DMI_BIOS_DATE); 262 if (!bios_date) 263 continue; 264 265 i = match_string(data->bios_dates, -1, bios_date); 266 if (i >= 0) 267 return data->orientation; 268 } 269 270 return DRM_MODE_PANEL_ORIENTATION_UNKNOWN; 271 } 272 EXPORT_SYMBOL(drm_get_panel_orientation_quirk); 273 274 #else 275 276 /* There are no quirks for non x86 devices yet */ 277 int drm_get_panel_orientation_quirk(int width, int height) 278 { 279 return DRM_MODE_PANEL_ORIENTATION_UNKNOWN; 280 } 281 EXPORT_SYMBOL(drm_get_panel_orientation_quirk); 282 283 #endif 284 285 MODULE_LICENSE("Dual MIT/GPL"); 286
Indexes created Sat Sep 20 22:09:52 GMT 2025