git.rot13.org Git - linux/blob - drivers/platform/x86/silead_dmi.c

   1 /*
   2  * Silead touchscreen driver DMI based configuration code
   3  *
   4  * Copyright (c) 2017 Red Hat Inc.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * Red Hat authors:
  12  * Hans de Goede <hdegoede@redhat.com>
  13  */
  14
  15 #include <linux/acpi.h>
  16 #include <linux/device.h>
  17 #include <linux/dmi.h>
  18 #include <linux/i2c.h>
  19 #include <linux/notifier.h>
  20 #include <linux/property.h>
  21 #include <linux/string.h>
  22
  23 struct silead_ts_dmi_data {
  24         const char *acpi_name;
  25         const struct property_entry *properties;
  26 };
  27
  28 static const struct property_entry cube_iwork8_air_props[] = {
  29         PROPERTY_ENTRY_U32("touchscreen-size-x", 1660),
  30         PROPERTY_ENTRY_U32("touchscreen-size-y", 900),
  31         PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
  32         PROPERTY_ENTRY_STRING("firmware-name", "gsl3670-cube-iwork8-air.fw"),
  33         PROPERTY_ENTRY_U32("silead,max-fingers", 10),
  34         { }
  35 };
  36
  37 static const struct silead_ts_dmi_data cube_iwork8_air_data = {
  38         .acpi_name      = "MSSL1680:00",
  39         .properties     = cube_iwork8_air_props,
  40 };
  41
  42 static const struct property_entry jumper_ezpad_mini3_props[] = {
  43         PROPERTY_ENTRY_U32("touchscreen-size-x", 1700),
  44         PROPERTY_ENTRY_U32("touchscreen-size-y", 1150),
  45         PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
  46         PROPERTY_ENTRY_STRING("firmware-name", "gsl3676-jumper-ezpad-mini3.fw"),
  47         PROPERTY_ENTRY_U32("silead,max-fingers", 10),
  48         { }
  49 };
  50
  51 static const struct silead_ts_dmi_data jumper_ezpad_mini3_data = {
  52         .acpi_name      = "MSSL1680:00",
  53         .properties     = jumper_ezpad_mini3_props,
  54 };
  55
  56 static const struct property_entry dexp_ursus_7w_props[] = {
  57         PROPERTY_ENTRY_U32("touchscreen-size-x", 890),
  58         PROPERTY_ENTRY_U32("touchscreen-size-y", 630),
  59         PROPERTY_ENTRY_STRING("firmware-name", "gsl1686-dexp-ursus-7w.fw"),
  60         PROPERTY_ENTRY_U32("silead,max-fingers", 10),
  61         { }
  62 };
  63
  64 static const struct silead_ts_dmi_data dexp_ursus_7w_data = {
  65         .acpi_name      = "MSSL1680:00",
  66         .properties     = dexp_ursus_7w_props,
  67 };
  68
  69 static const struct property_entry surftab_wintron70_st70416_6_props[] = {
  70         PROPERTY_ENTRY_U32("touchscreen-size-x", 884),
  71         PROPERTY_ENTRY_U32("touchscreen-size-y", 632),
  72         PROPERTY_ENTRY_STRING("firmware-name",
  73                               "gsl1686-surftab-wintron70-st70416-6.fw"),
  74         PROPERTY_ENTRY_U32("silead,max-fingers", 10),
  75         { }
  76 };
  77
  78 static const struct silead_ts_dmi_data surftab_wintron70_st70416_6_data = {
  79         .acpi_name      = "MSSL1680:00",
  80         .properties     = surftab_wintron70_st70416_6_props,
  81 };
  82
  83 static const struct property_entry gp_electronic_t701_props[] = {
  84         PROPERTY_ENTRY_U32("touchscreen-size-x", 960),
  85         PROPERTY_ENTRY_U32("touchscreen-size-y", 640),
  86         PROPERTY_ENTRY_BOOL("touchscreen-inverted-x"),
  87         PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
  88         PROPERTY_ENTRY_STRING("firmware-name",
  89                               "gsl1680-gp-electronic-t701.fw"),
  90         { }
  91 };
  92
  93 static const struct silead_ts_dmi_data gp_electronic_t701_data = {
  94         .acpi_name      = "MSSL1680:00",
  95         .properties     = gp_electronic_t701_props,
  96 };
  97
  98 static const struct property_entry pipo_w2s_props[] = {
  99         PROPERTY_ENTRY_U32("touchscreen-size-x", 1660),
 100         PROPERTY_ENTRY_U32("touchscreen-size-y", 880),
 101         PROPERTY_ENTRY_BOOL("touchscreen-inverted-x"),
 102         PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
 103         PROPERTY_ENTRY_STRING("firmware-name",
 104                               "gsl1680-pipo-w2s.fw"),
 105         { }
 106 };
 107
 108 static const struct silead_ts_dmi_data pipo_w2s_data = {
 109         .acpi_name      = "MSSL1680:00",
 110         .properties     = pipo_w2s_props,
 111 };
 112
 113 static const struct property_entry pov_mobii_wintab_p800w_props[] = {
 114         PROPERTY_ENTRY_U32("touchscreen-size-x", 1800),
 115         PROPERTY_ENTRY_U32("touchscreen-size-y", 1150),
 116         PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
 117         PROPERTY_ENTRY_STRING("firmware-name",
 118                               "gsl3692-pov-mobii-wintab-p800w.fw"),
 119         { }
 120 };
 121
 122 static const struct silead_ts_dmi_data pov_mobii_wintab_p800w_data = {
 123         .acpi_name      = "MSSL1680:00",
 124         .properties     = pov_mobii_wintab_p800w_props,
 125 };
 126
 127 static const struct property_entry itworks_tw891_props[] = {
 128         PROPERTY_ENTRY_U32("touchscreen-size-x", 1600),
 129         PROPERTY_ENTRY_U32("touchscreen-size-y", 890),
 130         PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
 131         PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
 132         PROPERTY_ENTRY_STRING("firmware-name", "gsl3670-itworks-tw891.fw"),
 133         { }
 134 };
 135
 136 static const struct silead_ts_dmi_data itworks_tw891_data = {
 137         .acpi_name      = "MSSL1680:00",
 138         .properties     = itworks_tw891_props,
 139 };
 140
 141 static const struct property_entry chuwi_hi8_pro_props[] = {
 142         PROPERTY_ENTRY_U32("touchscreen-size-x", 1728),
 143         PROPERTY_ENTRY_U32("touchscreen-size-y", 1148),
 144         PROPERTY_ENTRY_BOOL("touchscreen-swapped-x-y"),
 145         PROPERTY_ENTRY_STRING("firmware-name", "gsl3680-chuwi-hi8-pro.fw"),
 146         { }
 147 };
 148
 149 static const struct silead_ts_dmi_data chuwi_hi8_pro_data = {
 150         .acpi_name      = "MSSL1680:00",
 151         .properties     = chuwi_hi8_pro_props,
 152 };
 153
 154 static const struct property_entry digma_citi_e200_props[] = {
 155         PROPERTY_ENTRY_U32("touchscreen-size-x", 1980),
 156         PROPERTY_ENTRY_U32("touchscreen-size-y", 1500),
 157         PROPERTY_ENTRY_BOOL("touchscreen-inverted-y"),
 158         PROPERTY_ENTRY_STRING("firmware-name",
 159                               "gsl1686-digma_citi_e200.fw"),
 160         PROPERTY_ENTRY_U32("silead,max-fingers", 10),
 161         PROPERTY_ENTRY_BOOL("silead,home-button"),
 162         { }
 163 };
 164
 165 static const struct silead_ts_dmi_data digma_citi_e200_data = {
 166         .acpi_name      = "MSSL1680:00",
 167         .properties     = digma_citi_e200_props,
 168 };
 169
 170 static const struct dmi_system_id silead_ts_dmi_table[] = {
 171         {
 172                 /* CUBE iwork8 Air */
 173                 .driver_data = (void *)&cube_iwork8_air_data,
 174                 .matches = {
 175                         DMI_MATCH(DMI_SYS_VENDOR, "cube"),
 176                         DMI_MATCH(DMI_PRODUCT_NAME, "i1-TF"),
 177                         DMI_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
 178                 },
 179         },
 180         {
 181                 /* Jumper EZpad mini3 */
 182                 .driver_data = (void *)&jumper_ezpad_mini3_data,
 183                 .matches = {
 184                         DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
 185                         /* jumperx.T87.KFBNEEA02 with the version-nr dropped */
 186                         DMI_MATCH(DMI_BIOS_VERSION, "jumperx.T87.KFBNEEA"),
 187                 },
 188         },
 189         {
 190                 /* DEXP Ursus 7W */
 191                 .driver_data = (void *)&dexp_ursus_7w_data,
 192                 .matches = {
 193                         DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
 194                         DMI_MATCH(DMI_PRODUCT_NAME, "7W"),
 195                 },
 196         },
 197         {
 198                 /* Trekstor Surftab Wintron 7.0 ST70416-6 */
 199                 .driver_data = (void *)&surftab_wintron70_st70416_6_data,
 200                 .matches = {
 201                         DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
 202                         DMI_MATCH(DMI_PRODUCT_NAME, "ST70416-6"),
 203                         /* Exact match, different versions need different fw */
 204                         DMI_MATCH(DMI_BIOS_VERSION, "TREK.G.WI71C.JGBMRBA04"),
 205                 },
 206         },
 207         {
 208                 /* Ployer Momo7w (same hardware as the Trekstor ST70416-6) */
 209                 .driver_data = (void *)&surftab_wintron70_st70416_6_data,
 210                 .matches = {
 211                         DMI_MATCH(DMI_SYS_VENDOR, "Shenzhen PLOYER"),
 212                         DMI_MATCH(DMI_PRODUCT_NAME, "MOMO7W"),
 213                         /* Exact match, different versions need different fw */
 214                         DMI_MATCH(DMI_BIOS_VERSION, "MOMO.G.WI71C.MABMRBA02"),
 215                 },
 216         },
 217         {
 218                 /* GP-electronic T701 */
 219                 .driver_data = (void *)&gp_electronic_t701_data,
 220                 .matches = {
 221                         DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
 222                         DMI_MATCH(DMI_PRODUCT_NAME, "T701"),
 223                         DMI_MATCH(DMI_BIOS_VERSION, "BYT70A.YNCHENG.WIN.007"),
 224                 },
 225         },
 226         {
 227                 /* Pipo W2S */
 228                 .driver_data = (void *)&pipo_w2s_data,
 229                 .matches = {
 230                         DMI_MATCH(DMI_SYS_VENDOR, "PIPO"),
 231                         DMI_MATCH(DMI_PRODUCT_NAME, "W2S"),
 232                 },
 233         },
 234         {
 235                 /* Point of View mobii wintab p800w */
 236                 .driver_data = (void *)&pov_mobii_wintab_p800w_data,
 237                 .matches = {
 238                         DMI_MATCH(DMI_BOARD_VENDOR, "AMI Corporation"),
 239                         DMI_MATCH(DMI_BOARD_NAME, "Aptio CRB"),
 240                         DMI_MATCH(DMI_BIOS_VERSION, "3BAIR1013"),
 241                         /* Above matches are too generic, add bios-date match */
 242                         DMI_MATCH(DMI_BIOS_DATE, "08/22/2014"),
 243                 },
 244         },
 245         {
 246                 /* I.T.Works TW891 */
 247                 .driver_data = (void *)&itworks_tw891_data,
 248                 .matches = {
 249                         DMI_MATCH(DMI_SYS_VENDOR, "To be filled by O.E.M."),
 250                         DMI_MATCH(DMI_PRODUCT_NAME, "TW891"),
 251                 },
 252         },
 253         {
 254                 /* Chuwi Hi8 Pro */
 255                 .driver_data = (void *)&chuwi_hi8_pro_data,
 256                 .matches = {
 257                         DMI_MATCH(DMI_SYS_VENDOR, "Hampoo"),
 258                         DMI_MATCH(DMI_PRODUCT_NAME, "X1D3_C806N"),
 259                 },
 260         },
 261         {
 262                 /* Digma Citi E200 */
 263                 .driver_data = (void *)&digma_citi_e200_data,
 264                 .matches = {
 265                         DMI_MATCH(DMI_SYS_VENDOR, "Digma"),
 266                         DMI_MATCH(DMI_PRODUCT_NAME, "CITI E200"),
 267                         DMI_MATCH(DMI_BOARD_NAME, "Cherry Trail CR"),
 268                 },
 269         },
 270         { },
 271 };
 272
 273 static const struct silead_ts_dmi_data *silead_ts_data;
 274
 275 static void silead_ts_dmi_add_props(struct i2c_client *client)
 276 {
 277         struct device *dev = &client->dev;
 278         int error;
 279
 280         if (has_acpi_companion(dev) &&
 281             !strncmp(silead_ts_data->acpi_name, client->name, I2C_NAME_SIZE)) {
 282                 error = device_add_properties(dev, silead_ts_data->properties);
 283                 if (error)
 284                         dev_err(dev, "failed to add properties: %d\n", error);
 285         }
 286 }
 287
 288 static int silead_ts_dmi_notifier_call(struct notifier_block *nb,
 289                                        unsigned long action, void *data)
 290 {
 291         struct device *dev = data;
 292         struct i2c_client *client;
 293
 294         switch (action) {
 295         case BUS_NOTIFY_ADD_DEVICE:
 296                 client = i2c_verify_client(dev);
 297                 if (client)
 298                         silead_ts_dmi_add_props(client);
 299                 break;
 300
 301         default:
 302                 break;
 303         }
 304
 305         return 0;
 306 }
 307
 308 static struct notifier_block silead_ts_dmi_notifier = {
 309         .notifier_call = silead_ts_dmi_notifier_call,
 310 };
 311
 312 static int __init silead_ts_dmi_init(void)
 313 {
 314         const struct dmi_system_id *dmi_id;
 315         int error;
 316
 317         dmi_id = dmi_first_match(silead_ts_dmi_table);
 318         if (!dmi_id)
 319                 return 0; /* Not an error */
 320
 321         silead_ts_data = dmi_id->driver_data;
 322
 323         error = bus_register_notifier(&i2c_bus_type, &silead_ts_dmi_notifier);
 324         if (error)
 325                 pr_err("%s: failed to register i2c bus notifier: %d\n",
 326                         __func__, error);
 327
 328         return error;
 329 }
 330
 331 /*
 332  * We are registering out notifier after i2c core is initialized and i2c bus
 333  * itself is ready (which happens at postcore initcall level), but before
 334  * ACPI starts enumerating devices (at subsys initcall level).
 335  */
 336 arch_initcall(silead_ts_dmi_init);