Lines Matching refs:ts
83 int (*check_config)(struct goodix_ts_data *ts, const u8 *cfg, int len);
84 void (*calc_config_checksum)(struct goodix_ts_data *ts);
120 static int goodix_check_cfg_8(struct goodix_ts_data *ts,
122 static int goodix_check_cfg_16(struct goodix_ts_data *ts,
124 static void goodix_calc_cfg_checksum_8(struct goodix_ts_data *ts);
125 static void goodix_calc_cfg_checksum_16(struct goodix_ts_data *ts);
299 static int goodix_ts_read_input_report(struct goodix_ts_data *ts, u8 *data)
307 * ts->contact_size * max(1, touch_num) bytes of coordinates
310 const int header_contact_keycode_size = 1 + ts->contact_size + 1;
319 error = goodix_i2c_read(ts->client, addr, data,
322 dev_err(&ts->client->dev, "I2C transfer error: %d\n",
329 if (touch_num > ts->max_touch_num)
335 error = goodix_i2c_read(ts->client,
337 ts->contact_size *
356 static void goodix_ts_report_touch_8b(struct goodix_ts_data *ts, u8 *coor_data)
363 input_mt_slot(ts->input_dev, id);
364 input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, true);
365 touchscreen_report_pos(ts->input_dev, &ts->prop,
367 input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, input_w);
368 input_report_abs(ts->input_dev, ABS_MT_WIDTH_MAJOR, input_w);
371 static void goodix_ts_report_touch_9b(struct goodix_ts_data *ts, u8 *coor_data)
378 input_mt_slot(ts->input_dev, id);
379 input_mt_report_slot_state(ts->input_dev, MT_TOOL_FINGER, true);
380 touchscreen_report_pos(ts->input_dev, &ts->prop,
382 input_report_abs(ts->input_dev, ABS_MT_TOUCH_MAJOR, input_w);
383 input_report_abs(ts->input_dev, ABS_MT_WIDTH_MAJOR, input_w);
386 static void goodix_ts_report_key(struct goodix_ts_data *ts, u8 *data)
394 key_value = data[1 + ts->contact_size * touch_num];
397 input_report_key(ts->input_dev,
398 ts->keymap[i], 1);
401 input_report_key(ts->input_dev, ts->keymap[i], 0);
408 * @ts: our goodix_ts_data pointer
413 static void goodix_process_events(struct goodix_ts_data *ts)
419 touch_num = goodix_ts_read_input_report(ts, point_data);
423 goodix_ts_report_key(ts, point_data);
426 if (ts->contact_size == 9)
427 goodix_ts_report_touch_9b(ts,
428 &point_data[1 + ts->contact_size * i]);
430 goodix_ts_report_touch_8b(ts,
431 &point_data[1 + ts->contact_size * i]);
433 input_mt_sync_frame(ts->input_dev);
434 input_sync(ts->input_dev);
445 struct goodix_ts_data *ts = dev_id;
447 goodix_process_events(ts);
449 if (goodix_i2c_write_u8(ts->client, GOODIX_READ_COOR_ADDR, 0) < 0)
450 dev_err(&ts->client->dev, "I2C write end_cmd error\n");
455 static void goodix_free_irq(struct goodix_ts_data *ts)
457 devm_free_irq(&ts->client->dev, ts->client->irq, ts);
460 static int goodix_request_irq(struct goodix_ts_data *ts)
462 return devm_request_threaded_irq(&ts->client->dev, ts->client->irq,
464 ts->irq_flags, ts->client->name, ts);
467 static int goodix_check_cfg_8(struct goodix_ts_data *ts, const u8 *cfg, int len)
476 dev_err(&ts->client->dev,
482 dev_err(&ts->client->dev,
490 static void goodix_calc_cfg_checksum_8(struct goodix_ts_data *ts)
492 int i, raw_cfg_len = ts->chip->config_len - 2;
496 check_sum += ts->config[i];
499 ts->config[raw_cfg_len] = check_sum;
500 ts->config[raw_cfg_len + 1] = 1; /* Set "config_fresh" bit */
503 static int goodix_check_cfg_16(struct goodix_ts_data *ts, const u8 *cfg,
513 dev_err(&ts->client->dev,
519 dev_err(&ts->client->dev,
527 static void goodix_calc_cfg_checksum_16(struct goodix_ts_data *ts)
529 int i, raw_cfg_len = ts->chip->config_len - 3;
533 check_sum += get_unaligned_be16(&ts->config[i]);
536 put_unaligned_be16(check_sum, &ts->config[raw_cfg_len]);
537 ts->config[raw_cfg_len + 2] = 1; /* Set "config_fresh" bit */
543 * @ts: goodix_ts_data pointer
546 static int goodix_check_cfg(struct goodix_ts_data *ts, const u8 *cfg, int len)
550 dev_err(&ts->client->dev,
555 return ts->chip->check_config(ts, cfg, len);
561 * @ts: goodix_ts_data pointer
564 static int goodix_send_cfg(struct goodix_ts_data *ts, const u8 *cfg, int len)
568 error = goodix_check_cfg(ts, cfg, len);
572 error = goodix_i2c_write(ts->client, ts->chip->config_addr, cfg, len);
574 dev_err(&ts->client->dev, "Failed to write config data: %d",
578 dev_dbg(&ts->client->dev, "Config sent successfully.");
587 static int goodix_pin_acpi_direction_input(struct goodix_ts_data *ts)
589 acpi_handle handle = ACPI_HANDLE(&ts->client->dev);
596 static int goodix_pin_acpi_output_method(struct goodix_ts_data *ts, int value)
598 acpi_handle handle = ACPI_HANDLE(&ts->client->dev);
605 static int goodix_pin_acpi_direction_input(struct goodix_ts_data *ts)
607 dev_err(&ts->client->dev,
612 static int goodix_pin_acpi_output_method(struct goodix_ts_data *ts, int value)
614 dev_err(&ts->client->dev,
620 static int goodix_irq_direction_output(struct goodix_ts_data *ts, int value)
622 switch (ts->irq_pin_access_method) {
624 dev_err(&ts->client->dev,
629 return gpiod_direction_output(ts->gpiod_int, value);
635 return gpiod_direction_output_raw(ts->gpiod_int, value);
637 return goodix_pin_acpi_output_method(ts, value);
643 static int goodix_irq_direction_input(struct goodix_ts_data *ts)
645 switch (ts->irq_pin_access_method) {
647 dev_err(&ts->client->dev,
652 return gpiod_direction_input(ts->gpiod_int);
654 return gpiod_direction_input(ts->gpiod_int);
656 return goodix_pin_acpi_direction_input(ts);
662 static int goodix_int_sync(struct goodix_ts_data *ts)
666 error = goodix_irq_direction_output(ts, 0);
672 error = goodix_irq_direction_input(ts);
682 * @ts: goodix_ts_data pointer
684 static int goodix_reset(struct goodix_ts_data *ts)
689 error = gpiod_direction_output(ts->gpiod_rst, 0);
696 error = goodix_irq_direction_output(ts, ts->client->addr == 0x14);
702 error = gpiod_direction_output(ts->gpiod_rst, 1);
709 error = gpiod_direction_input(ts->gpiod_rst);
713 error = goodix_int_sync(ts);
758 struct goodix_ts_data *ts = data;
759 struct device *dev = &ts->client->dev;
766 if (ts->gpio_int_idx == -1) {
767 ts->gpio_int_idx = ts->gpio_count;
770 ts->gpio_int_idx = -2;
773 ts->gpio_count++;
789 static int goodix_add_acpi_gpio_mappings(struct goodix_ts_data *ts)
792 struct device *dev = &ts->client->dev;
796 ts->gpio_count = 0;
797 ts->gpio_int_idx = -1;
799 goodix_resource, ts);
807 if (ts->gpio_count == 2 && ts->gpio_int_idx == 0) {
808 ts->irq_pin_access_method = IRQ_PIN_ACCESS_ACPI_GPIO;
810 } else if (ts->gpio_count == 2 && ts->gpio_int_idx == 1) {
811 ts->irq_pin_access_method = IRQ_PIN_ACCESS_ACPI_GPIO;
813 } else if (ts->gpio_count == 1 && ts->gpio_int_idx == -1 &&
817 ts->irq_pin_access_method = IRQ_PIN_ACCESS_ACPI_METHOD;
819 } else if (is_byt() && ts->gpio_count == 2 && ts->gpio_int_idx == -1) {
821 ts->irq_pin_access_method = IRQ_PIN_ACCESS_ACPI_GPIO;
823 } else if (ts->gpio_count == 1 && ts->gpio_int_idx == 0) {
840 ts->irq_pin_access_method = IRQ_PIN_ACCESS_NONE;
844 ts->gpio_count, ts->gpio_int_idx);
851 static int goodix_add_acpi_gpio_mappings(struct goodix_ts_data *ts)
860 * @ts: goodix_ts_data pointer
862 static int goodix_get_gpio_config(struct goodix_ts_data *ts)
869 if (!ts->client)
871 dev = &ts->client->dev;
873 ts->avdd28 = devm_regulator_get(dev, "AVDD28");
874 if (IS_ERR(ts->avdd28)) {
875 error = PTR_ERR(ts->avdd28);
882 ts->vddio = devm_regulator_get(dev, "VDDIO");
883 if (IS_ERR(ts->vddio)) {
884 error = PTR_ERR(ts->vddio);
903 if (goodix_add_acpi_gpio_mappings(ts) == 0)
907 ts->gpiod_int = gpiod;
919 ts->gpiod_rst = gpiod;
921 switch (ts->irq_pin_access_method) {
931 if (!ts->gpiod_int || !ts->gpiod_rst)
932 ts->irq_pin_access_method = IRQ_PIN_ACCESS_NONE;
935 if (!ts->gpiod_rst)
936 ts->irq_pin_access_method = IRQ_PIN_ACCESS_NONE;
939 if (ts->gpiod_int && ts->gpiod_rst) {
940 ts->reset_controller_at_probe = true;
941 ts->load_cfg_from_disk = true;
942 ts->irq_pin_access_method = IRQ_PIN_ACCESS_GPIO;
952 * @ts: our goodix_ts_data pointer
956 static void goodix_read_config(struct goodix_ts_data *ts)
961 error = goodix_i2c_read(ts->client, ts->chip->config_addr,
962 ts->config, ts->chip->config_len);
964 dev_warn(&ts->client->dev, "Error reading config: %d\n",
966 ts->int_trigger_type = GOODIX_INT_TRIGGER;
967 ts->max_touch_num = GOODIX_MAX_CONTACTS;
971 ts->int_trigger_type = ts->config[TRIGGER_LOC] & 0x03;
972 ts->max_touch_num = ts->config[MAX_CONTACTS_LOC] & 0x0f;
974 x_max = get_unaligned_le16(&ts->config[RESOLUTION_LOC]);
975 y_max = get_unaligned_le16(&ts->config[RESOLUTION_LOC + 2]);
977 input_abs_set_max(ts->input_dev, ABS_MT_POSITION_X, x_max - 1);
978 input_abs_set_max(ts->input_dev, ABS_MT_POSITION_Y, y_max - 1);
981 ts->chip->calc_config_checksum(ts);
987 * @ts: our goodix_ts_data pointer
989 static int goodix_read_version(struct goodix_ts_data *ts)
995 error = goodix_i2c_read(ts->client, GOODIX_REG_ID, buf, sizeof(buf));
997 dev_err(&ts->client->dev, "read version failed: %d\n", error);
1003 strscpy(ts->id, id_str, GOODIX_ID_MAX_LEN + 1);
1005 ts->version = get_unaligned_le16(&buf[4]);
1007 dev_info(&ts->client->dev, "ID %s, version: %04x\n", ts->id,
1008 ts->version);
1041 * @ts: our goodix_ts_data pointer
1048 static int goodix_configure_dev(struct goodix_ts_data *ts)
1053 ts->int_trigger_type = GOODIX_INT_TRIGGER;
1054 ts->max_touch_num = GOODIX_MAX_CONTACTS;
1056 ts->input_dev = devm_input_allocate_device(&ts->client->dev);
1057 if (!ts->input_dev) {
1058 dev_err(&ts->client->dev, "Failed to allocate input device.");
1062 ts->input_dev->name = "Goodix Capacitive TouchScreen";
1063 ts->input_dev->phys = "input/ts";
1064 ts->input_dev->id.bustype = BUS_I2C;
1065 ts->input_dev->id.vendor = 0x0416;
1066 if (kstrtou16(ts->id, 10, &ts->input_dev->id.product))
1067 ts->input_dev->id.product = 0x1001;
1068 ts->input_dev->id.version = ts->version;
1070 ts->input_dev->keycode = ts->keymap;
1071 ts->input_dev->keycodesize = sizeof(ts->keymap[0]);
1072 ts->input_dev->keycodemax = GOODIX_MAX_KEYS;
1077 ts->keymap[i] = KEY_LEFTMETA;
1079 ts->keymap[i] = KEY_F1 + (i - 1);
1081 input_set_capability(ts->input_dev, EV_KEY, ts->keymap[i]);
1084 input_set_capability(ts->input_dev, EV_ABS, ABS_MT_POSITION_X);
1085 input_set_capability(ts->input_dev, EV_ABS, ABS_MT_POSITION_Y);
1086 input_set_abs_params(ts->input_dev, ABS_MT_WIDTH_MAJOR, 0, 255, 0, 0);
1087 input_set_abs_params(ts->input_dev, ABS_MT_TOUCH_MAJOR, 0, 255, 0, 0);
1091 goodix_read_config(ts);
1094 touchscreen_parse_properties(ts->input_dev, true, &ts->prop);
1096 if (!ts->prop.max_x || !ts->prop.max_y || !ts->max_touch_num) {
1097 if (!ts->reset_controller_at_probe &&
1098 ts->irq_pin_access_method != IRQ_PIN_ACCESS_NONE) {
1099 dev_info(&ts->client->dev, "Config not set, resetting controller\n");
1101 ts->reset_controller_at_probe = true;
1102 error = goodix_reset(ts);
1107 dev_err(&ts->client->dev,
1109 ts->prop.max_x, ts->prop.max_y, ts->max_touch_num);
1110 ts->prop.max_x = GOODIX_MAX_WIDTH - 1;
1111 ts->prop.max_y = GOODIX_MAX_HEIGHT - 1;
1112 ts->max_touch_num = GOODIX_MAX_CONTACTS;
1113 input_abs_set_max(ts->input_dev,
1114 ABS_MT_POSITION_X, ts->prop.max_x);
1115 input_abs_set_max(ts->input_dev,
1116 ABS_MT_POSITION_Y, ts->prop.max_y);
1120 ts->contact_size = 9;
1122 dev_dbg(&ts->client->dev,
1127 ts->prop.invert_x = true;
1128 dev_dbg(&ts->client->dev,
1132 error = input_mt_init_slots(ts->input_dev, ts->max_touch_num,
1135 dev_err(&ts->client->dev,
1140 error = input_register_device(ts->input_dev);
1142 dev_err(&ts->client->dev,
1147 ts->irq_flags = goodix_irq_flags[ts->int_trigger_type] | IRQF_ONESHOT;
1148 error = goodix_request_irq(ts);
1150 dev_err(&ts->client->dev, "request IRQ failed: %d\n", error);
1160 * @ts: our goodix_ts_data pointer
1167 struct goodix_ts_data *ts = ctx;
1172 error = goodix_send_cfg(ts, cfg->data, cfg->size);
1177 goodix_configure_dev(ts);
1181 complete_all(&ts->firmware_loading_complete);
1186 struct goodix_ts_data *ts = arg;
1188 regulator_disable(ts->vddio);
1189 regulator_disable(ts->avdd28);
1195 struct goodix_ts_data *ts;
1205 ts = devm_kzalloc(&client->dev, sizeof(*ts), GFP_KERNEL);
1206 if (!ts)
1209 ts->client = client;
1210 i2c_set_clientdata(client, ts);
1211 init_completion(&ts->firmware_loading_complete);
1212 ts->contact_size = GOODIX_CONTACT_SIZE;
1214 error = goodix_get_gpio_config(ts);
1219 error = regulator_enable(ts->avdd28);
1227 error = regulator_enable(ts->vddio);
1232 regulator_disable(ts->avdd28);
1237 goodix_disable_regulators, ts);
1242 if (ts->reset_controller_at_probe) {
1244 error = goodix_reset(ts);
1253 if (!ts->reset_controller_at_probe &&
1254 ts->irq_pin_access_method != IRQ_PIN_ACCESS_NONE) {
1256 ts->reset_controller_at_probe = true;
1263 error = goodix_read_version(ts);
1269 ts->chip = goodix_get_chip_data(ts->id);
1271 if (ts->load_cfg_from_disk) {
1273 ts->cfg_name = devm_kasprintf(&client->dev, GFP_KERNEL,
1274 "goodix_%s_cfg.bin", ts->id);
1275 if (!ts->cfg_name)
1278 error = request_firmware_nowait(THIS_MODULE, true, ts->cfg_name,
1279 &client->dev, GFP_KERNEL, ts,
1290 error = goodix_configure_dev(ts);
1300 struct goodix_ts_data *ts = i2c_get_clientdata(client);
1302 if (ts->load_cfg_from_disk)
1303 wait_for_completion(&ts->firmware_loading_complete);
1311 struct goodix_ts_data *ts = i2c_get_clientdata(client);
1314 if (ts->load_cfg_from_disk)
1315 wait_for_completion(&ts->firmware_loading_complete);
1318 if (ts->irq_pin_access_method == IRQ_PIN_ACCESS_NONE) {
1324 goodix_free_irq(ts);
1327 error = goodix_irq_direction_output(ts, 0);
1329 goodix_request_irq(ts);
1335 error = goodix_i2c_write_u8(ts->client, GOODIX_REG_COMMAND,
1338 dev_err(&ts->client->dev, "Screen off command failed\n");
1339 goodix_irq_direction_input(ts);
1340 goodix_request_irq(ts);
1356 struct goodix_ts_data *ts = i2c_get_clientdata(client);
1360 if (ts->irq_pin_access_method == IRQ_PIN_ACCESS_NONE) {
1369 error = goodix_irq_direction_output(ts, 1);
1375 error = goodix_int_sync(ts);
1379 error = goodix_i2c_read(ts->client, ts->chip->config_addr,
1384 else if (config_ver != ts->config[0])
1386 config_ver, ts->config[0]);
1388 if (error != 0 || config_ver != ts->config[0]) {
1389 error = goodix_reset(ts);
1395 error = goodix_send_cfg(ts, ts->config, ts->chip->config_len);
1400 error = goodix_request_irq(ts);