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 onegx1_pro = {
88 .width = 1200,
89 .height = 1920,
90 .bios_dates = (const char * const []){ "12/17/2020", NULL },
91 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
92 };
93
94 static const struct drm_dmi_panel_orientation_data lcd720x1280_rightside_up = {
95 .width = 720,
96 .height = 1280,
97 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
98 };
99
100 static const struct drm_dmi_panel_orientation_data lcd800x1280_rightside_up = {
101 .width = 800,
102 .height = 1280,
103 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
104 };
105
106 static const struct drm_dmi_panel_orientation_data lcd1200x1920_rightside_up = {
107 .width = 1200,
108 .height = 1920,
109 .orientation = DRM_MODE_PANEL_ORIENTATION_RIGHT_UP,
110 };
111
112 static const struct dmi_system_id orientation_data[] = {
113 { /* Acer One 10 (S1003) */
114 .matches = {
115 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Acer"),
116 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "One S1003"),
117 },
118 .driver_data = (void *)&lcd800x1280_rightside_up,
119 }, { /* Asus T100HA */
120 .matches = {
121 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
122 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T100HAN"),
123 },
124 .driver_data = (void *)&asus_t100ha,
125 }, { /* Asus T101HA */
126 .matches = {
127 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
128 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T101HA"),
129 },
130 .driver_data = (void *)&lcd800x1280_rightside_up,
131 }, { /* Asus T103HAF */
132 .matches = {
133 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
134 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "T103HAF"),
135 },
136 .driver_data = (void *)&lcd800x1280_rightside_up,
137 }, { /* AYA NEO 2021 */
138 .matches = {
139 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "AYADEVICE"),
140 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "AYA NEO 2021"),
141 },
142 .driver_data = (void *)&lcd800x1280_rightside_up,
143 }, { /* GPD MicroPC (generic strings, also match on bios date) */
144 .matches = {
145 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
146 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
147 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
148 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
149 },
150 .driver_data = (void *)&gpd_micropc,
151 }, { /* GPD MicroPC (later BIOS versions with proper DMI strings) */
152 .matches = {
153 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
154 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "MicroPC"),
155 },
156 .driver_data = (void *)&lcd720x1280_rightside_up,
157 }, { /*
158 * GPD Pocket, note that the the DMI data is less generic then
159 * it seems, devices with a board-vendor of "AMI Corporation"
160 * are quite rare, as are devices which have both board- *and*
161 * product-id set to "Default String"
162 */
163 .matches = {
164 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
165 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
166 DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
167 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
168 },
169 .driver_data = (void *)&gpd_pocket,
170 }, { /* GPD Pocket 2 (generic strings, also match on bios date) */
171 .matches = {
172 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
173 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
174 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
175 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
176 },
177 .driver_data = (void *)&gpd_pocket2,
178 }, { /* GPD Win (same note on DMI match as GPD Pocket) */
179 .matches = {
180 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
181 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
182 DMI_EXACT_MATCH(DMI_BOARD_SERIAL, "Default string"),
183 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
184 },
185 .driver_data = (void *)&gpd_win,
186 }, { /* GPD Win 2 (too generic strings, also match on bios date) */
187 .matches = {
188 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "Default string"),
189 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Default string"),
190 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "Default string"),
191 DMI_EXACT_MATCH(DMI_BOARD_NAME, "Default string"),
192 },
193 .driver_data = (void *)&gpd_win2,
194 }, { /* GPD Win 3 */
195 .matches = {
196 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "GPD"),
197 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "G1618-03")
198 },
199 .driver_data = (void *)&lcd720x1280_rightside_up,
200 }, { /* I.T.Works TW891 */
201 .matches = {
202 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
203 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "TW891"),
204 DMI_EXACT_MATCH(DMI_BOARD_VENDOR, "To be filled by O.E.M."),
205 DMI_EXACT_MATCH(DMI_BOARD_NAME, "TW891"),
206 },
207 .driver_data = (void *)&itworks_tw891,
208 }, { /*
209 * Lenovo Ideapad Miix 310 laptop, only some production batches
210 * have a portrait screen, the resolution checks makes the quirk
211 * apply only to those batches.
212 */
213 .matches = {
214 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
215 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80SG"),
216 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "MIIX 310-10ICR"),
217 },
218 .driver_data = (void *)&lcd800x1280_rightside_up,
219 }, { /* Lenovo Ideapad Miix 320 */
220 .matches = {
221 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
222 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "80XF"),
223 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
224 },
225 .driver_data = (void *)&lcd800x1280_rightside_up,
226 }, { /* Lenovo Ideapad D330 */
227 .matches = {
228 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "LENOVO"),
229 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "81H3"),
230 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Lenovo ideapad D330-10IGM"),
231 },
232 .driver_data = (void *)&lcd1200x1920_rightside_up,
233 }, { /* OneGX1 Pro */
234 .matches = {
235 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "SYSTEM_MANUFACTURER"),
236 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "SYSTEM_PRODUCT_NAME"),
237 DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, "Default string"),
238 },
239 .driver_data = (void *)&onegx1_pro,
240 }, { /* VIOS LTH17 */
241 .matches = {
242 DMI_EXACT_MATCH(DMI_SYS_VENDOR, "VIOS"),
243 DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "LTH17"),
244 },
245 .driver_data = (void *)&lcd800x1280_rightside_up,
246 },
247 {}
248 };
249
250 /**
251 * drm_get_panel_orientation_quirk - Check for panel orientation quirks
252 * @width: width in pixels of the panel
253 * @height: height in pixels of the panel
254 *
255 * This function checks for platform specific (e.g. DMI based) quirks
256 * providing info on panel_orientation for systems where this cannot be
257 * probed from the hard-/firm-ware. To avoid false-positive this function
258 * takes the panel resolution as argument and checks that against the
259 * resolution expected by the quirk-table entry.
260 *
261 * Note this function is also used outside of the drm-subsys, by for example
262 * the efifb code. Because of this this function gets compiled into its own
263 * kernel-module when built as a module.
264 *
265 * Returns:
266 * A DRM_MODE_PANEL_ORIENTATION_* value if there is a quirk for this system,
267 * or DRM_MODE_PANEL_ORIENTATION_UNKNOWN if there is no quirk.
268 */
drm_get_panel_orientation_quirk(int width,int height)269 int drm_get_panel_orientation_quirk(int width, int height)
270 {
271 const struct dmi_system_id *match;
272 const struct drm_dmi_panel_orientation_data *data;
273 const char *bios_date;
274 int i;
275
276 for (match = dmi_first_match(orientation_data);
277 match;
278 match = dmi_first_match(match + 1)) {
279 data = match->driver_data;
280
281 if (data->width != width ||
282 data->height != height)
283 continue;
284
285 if (!data->bios_dates)
286 return data->orientation;
287
288 bios_date = dmi_get_system_info(DMI_BIOS_DATE);
289 if (!bios_date)
290 continue;
291
292 i = match_string(data->bios_dates, -1, bios_date);
293 if (i >= 0)
294 return data->orientation;
295 }
296
297 return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
298 }
299 EXPORT_SYMBOL(drm_get_panel_orientation_quirk);
300
301 #else
302
303 /* There are no quirks for non x86 devices yet */
drm_get_panel_orientation_quirk(int width,int height)304 int drm_get_panel_orientation_quirk(int width, int height)
305 {
306 return DRM_MODE_PANEL_ORIENTATION_UNKNOWN;
307 }
308 EXPORT_SYMBOL(drm_get_panel_orientation_quirk);
309
310 #endif
311
312 MODULE_LICENSE("Dual MIT/GPL");
313
