Lines Matching +full:proximity +full:- +full:near +full:- +full:level
1 // SPDX-License-Identifier: GPL-2.0-only
3 * Support for Lite-On LTR501 and similar ambient light and proximity sensors.
7 * 7-bit I2C slave address 0x23
35 #define LTR501_ALS_DATA1 0x88 /* 16-bit, little endian */
37 #define LTR501_ALS_DATA0 0x8a /* 16-bit, little endian */
40 #define LTR501_PS_DATA 0x8d /* 16-bit, little endian */
71 ((vis_coeff * vis_data) - (ir_coeff * ir_data))
95 #define LTR501_RESERVED_GAIN -1
198 return -EINVAL; in ltr501_match_samp_freq()
206 ret = regmap_field_read(data->reg_als_rate, &i); in ltr501_als_read_samp_freq()
211 return -EINVAL; in ltr501_als_read_samp_freq()
224 ret = regmap_field_read(data->reg_ps_rate, &i); in ltr501_ps_read_samp_freq()
229 return -EINVAL; in ltr501_ps_read_samp_freq()
249 mutex_lock(&data->lock_als); in ltr501_als_write_samp_freq()
250 ret = regmap_field_write(data->reg_als_rate, i); in ltr501_als_write_samp_freq()
251 mutex_unlock(&data->lock_als); in ltr501_als_write_samp_freq()
268 mutex_lock(&data->lock_ps); in ltr501_ps_write_samp_freq()
269 ret = regmap_field_write(data->reg_ps_rate, i); in ltr501_ps_write_samp_freq()
270 mutex_unlock(&data->lock_ps); in ltr501_ps_write_samp_freq()
279 ret = regmap_field_read(data->reg_als_rate, &i); in ltr501_als_read_samp_period()
284 return -EINVAL; in ltr501_als_read_samp_period()
295 ret = regmap_field_read(data->reg_ps_rate, &i); in ltr501_ps_read_samp_period()
300 return -EINVAL; in ltr501_ps_read_samp_period()
319 lux = LTR501_LUX_CONV(1774, vis_data, -1105, ir_data); in ltr501_calculate_lux()
335 while (tries--) { in ltr501_drdy()
336 ret = regmap_read(data->regmap, LTR501_ALS_PS_STATUS, &status); in ltr501_drdy()
344 dev_err(&data->client->dev, "ltr501_drdy() failed, data not ready\n"); in ltr501_drdy()
345 return -EIO; in ltr501_drdy()
350 int ret, i, index = -1, status; in ltr501_set_it_time()
360 return -EINVAL; in ltr501_set_it_time()
362 ret = regmap_read(data->regmap, LTR501_ALS_CONTR, &status); in ltr501_set_it_time()
372 return -EINVAL; in ltr501_set_it_time()
376 return -EINVAL; in ltr501_set_it_time()
378 return regmap_field_write(data->reg_it, index); in ltr501_set_it_time()
387 ret = regmap_field_read(data->reg_it, &index); in ltr501_read_it_time()
393 return -EINVAL; in ltr501_read_it_time()
409 return regmap_bulk_read(data->regmap, LTR501_ALS_DATA1, in ltr501_read_als()
422 ret = regmap_bulk_read(data->regmap, LTR501_PS_DATA, in ltr501_read_ps()
438 ret = regmap_field_read(data->reg_als_prst, &prst); in ltr501_read_intr_prst()
449 ret = regmap_field_read(data->reg_ps_prst, &prst); in ltr501_read_intr_prst()
461 return -EINVAL; in ltr501_read_intr_prst()
464 return -EINVAL; in ltr501_read_intr_prst()
475 return -EINVAL; in ltr501_write_intr_prst()
488 return -EINVAL; in ltr501_write_intr_prst()
492 return -EINVAL; in ltr501_write_intr_prst()
494 mutex_lock(&data->lock_als); in ltr501_write_intr_prst()
495 ret = regmap_field_write(data->reg_als_prst, new_val); in ltr501_write_intr_prst()
496 mutex_unlock(&data->lock_als); in ltr501_write_intr_prst()
498 data->als_period = period; in ltr501_write_intr_prst()
508 return -EINVAL; in ltr501_write_intr_prst()
512 return -EINVAL; in ltr501_write_intr_prst()
514 mutex_lock(&data->lock_ps); in ltr501_write_intr_prst()
515 ret = regmap_field_write(data->reg_ps_prst, new_val); in ltr501_write_intr_prst()
516 mutex_unlock(&data->lock_ps); in ltr501_write_intr_prst()
518 data->ps_period = period; in ltr501_write_intr_prst()
522 return -EINVAL; in ltr501_write_intr_prst()
525 return -EINVAL; in ltr501_write_intr_prst()
535 return sprintf(buf, "%u\n", data->near_level); in ltr501_read_near_level()
604 .scan_index = -1, \
659 switch (chan->type) { in ltr501_read_raw()
665 mutex_lock(&data->lock_als); in ltr501_read_raw()
667 mutex_unlock(&data->lock_als); in ltr501_read_raw()
675 return -EINVAL; in ltr501_read_raw()
682 switch (chan->type) { in ltr501_read_raw()
684 mutex_lock(&data->lock_als); in ltr501_read_raw()
686 mutex_unlock(&data->lock_als); in ltr501_read_raw()
689 *val = le16_to_cpu(chan->address == LTR501_ALS_DATA1 ? in ltr501_read_raw()
694 mutex_lock(&data->lock_ps); in ltr501_read_raw()
696 mutex_unlock(&data->lock_ps); in ltr501_read_raw()
703 ret = -EINVAL; in ltr501_read_raw()
711 switch (chan->type) { in ltr501_read_raw()
713 i = (data->als_contr & data->chip_info->als_gain_mask) in ltr501_read_raw()
714 >> data->chip_info->als_gain_shift; in ltr501_read_raw()
715 *val = data->chip_info->als_gain[i].scale; in ltr501_read_raw()
716 *val2 = data->chip_info->als_gain[i].uscale; in ltr501_read_raw()
719 i = (data->ps_contr & LTR501_CONTR_PS_GAIN_MASK) >> in ltr501_read_raw()
721 *val = data->chip_info->ps_gain[i].scale; in ltr501_read_raw()
722 *val2 = data->chip_info->ps_gain[i].uscale; in ltr501_read_raw()
725 return -EINVAL; in ltr501_read_raw()
728 switch (chan->type) { in ltr501_read_raw()
732 return -EINVAL; in ltr501_read_raw()
735 switch (chan->type) { in ltr501_read_raw()
741 return -EINVAL; in ltr501_read_raw()
744 return -EINVAL; in ltr501_read_raw()
756 return -1; in ltr501_get_gain_index()
765 const struct ltr501_chip_info *info = data->chip_info; in ltr501_write_raw()
773 switch (chan->type) { in ltr501_write_raw()
775 i = ltr501_get_gain_index(info->als_gain, in ltr501_write_raw()
776 info->als_gain_tbl_size, in ltr501_write_raw()
779 ret = -EINVAL; in ltr501_write_raw()
783 data->als_contr &= ~info->als_gain_mask; in ltr501_write_raw()
784 data->als_contr |= i << info->als_gain_shift; in ltr501_write_raw()
786 ret = regmap_write(data->regmap, LTR501_ALS_CONTR, in ltr501_write_raw()
787 data->als_contr); in ltr501_write_raw()
790 i = ltr501_get_gain_index(info->ps_gain, in ltr501_write_raw()
791 info->ps_gain_tbl_size, in ltr501_write_raw()
794 ret = -EINVAL; in ltr501_write_raw()
797 data->ps_contr &= ~LTR501_CONTR_PS_GAIN_MASK; in ltr501_write_raw()
798 data->ps_contr |= i << LTR501_CONTR_PS_GAIN_SHIFT; in ltr501_write_raw()
800 ret = regmap_write(data->regmap, LTR501_PS_CONTR, in ltr501_write_raw()
801 data->ps_contr); in ltr501_write_raw()
804 ret = -EINVAL; in ltr501_write_raw()
810 switch (chan->type) { in ltr501_write_raw()
813 ret = -EINVAL; in ltr501_write_raw()
816 mutex_lock(&data->lock_als); in ltr501_write_raw()
818 mutex_unlock(&data->lock_als); in ltr501_write_raw()
821 ret = -EINVAL; in ltr501_write_raw()
827 switch (chan->type) { in ltr501_write_raw()
839 ret = ltr501_write_intr_prst(data, chan->type, in ltr501_write_raw()
840 0, data->als_period); in ltr501_write_raw()
857 ret = ltr501_write_intr_prst(data, chan->type, in ltr501_write_raw()
858 0, data->ps_period); in ltr501_write_raw()
865 ret = -EINVAL; in ltr501_write_raw()
871 ret = -EINVAL; in ltr501_write_raw()
889 switch (chan->type) { in ltr501_read_thresh()
893 ret = regmap_bulk_read(data->regmap, in ltr501_read_thresh()
901 ret = regmap_bulk_read(data->regmap, in ltr501_read_thresh()
909 return -EINVAL; in ltr501_read_thresh()
914 ret = regmap_bulk_read(data->regmap, in ltr501_read_thresh()
922 ret = regmap_bulk_read(data->regmap, in ltr501_read_thresh()
930 return -EINVAL; in ltr501_read_thresh()
933 return -EINVAL; in ltr501_read_thresh()
936 return -EINVAL; in ltr501_read_thresh()
950 return -EINVAL; in ltr501_write_thresh()
952 switch (chan->type) { in ltr501_write_thresh()
955 return -EINVAL; in ltr501_write_thresh()
958 mutex_lock(&data->lock_als); in ltr501_write_thresh()
959 ret = regmap_bulk_write(data->regmap, in ltr501_write_thresh()
962 mutex_unlock(&data->lock_als); in ltr501_write_thresh()
965 mutex_lock(&data->lock_als); in ltr501_write_thresh()
966 ret = regmap_bulk_write(data->regmap, in ltr501_write_thresh()
969 mutex_unlock(&data->lock_als); in ltr501_write_thresh()
972 return -EINVAL; in ltr501_write_thresh()
976 return -EINVAL; in ltr501_write_thresh()
979 mutex_lock(&data->lock_ps); in ltr501_write_thresh()
980 ret = regmap_bulk_write(data->regmap, in ltr501_write_thresh()
983 mutex_unlock(&data->lock_ps); in ltr501_write_thresh()
986 mutex_lock(&data->lock_ps); in ltr501_write_thresh()
987 ret = regmap_bulk_write(data->regmap, in ltr501_write_thresh()
990 mutex_unlock(&data->lock_ps); in ltr501_write_thresh()
993 return -EINVAL; in ltr501_write_thresh()
996 return -EINVAL; in ltr501_write_thresh()
999 return -EINVAL; in ltr501_write_thresh()
1017 chan->type, val2); in ltr501_read_event()
1022 return -EINVAL; in ltr501_read_event()
1025 return -EINVAL; in ltr501_read_event()
1038 return -EINVAL; in ltr501_write_event()
1042 return ltr501_write_intr_prst(iio_priv(indio_dev), chan->type, in ltr501_write_event()
1045 return -EINVAL; in ltr501_write_event()
1048 return -EINVAL; in ltr501_write_event()
1059 switch (chan->type) { in ltr501_read_event_config()
1061 ret = regmap_field_read(data->reg_als_intr, &status); in ltr501_read_event_config()
1066 ret = regmap_field_read(data->reg_ps_intr, &status); in ltr501_read_event_config()
1071 return -EINVAL; in ltr501_read_event_config()
1074 return -EINVAL; in ltr501_read_event_config()
1085 switch (chan->type) { in ltr501_write_event_config()
1087 mutex_lock(&data->lock_als); in ltr501_write_event_config()
1088 ret = regmap_field_write(data->reg_als_intr, state); in ltr501_write_event_config()
1089 mutex_unlock(&data->lock_als); in ltr501_write_event_config()
1092 mutex_lock(&data->lock_ps); in ltr501_write_event_config()
1093 ret = regmap_field_write(data->reg_ps_intr, state); in ltr501_write_event_config()
1094 mutex_unlock(&data->lock_ps); in ltr501_write_event_config()
1097 return -EINVAL; in ltr501_write_event_config()
1100 return -EINVAL; in ltr501_write_event_config()
1108 const struct ltr501_chip_info *info = data->chip_info; in ltr501_show_proximity_scale_avail()
1112 for (i = 0; i < info->ps_gain_tbl_size; i++) { in ltr501_show_proximity_scale_avail()
1113 if (info->ps_gain[i].scale == LTR501_RESERVED_GAIN) in ltr501_show_proximity_scale_avail()
1115 len += scnprintf(buf + len, PAGE_SIZE - len, "%d.%06d ", in ltr501_show_proximity_scale_avail()
1116 info->ps_gain[i].scale, in ltr501_show_proximity_scale_avail()
1117 info->ps_gain[i].uscale); in ltr501_show_proximity_scale_avail()
1120 buf[len - 1] = '\n'; in ltr501_show_proximity_scale_avail()
1130 const struct ltr501_chip_info *info = data->chip_info; in ltr501_show_intensity_scale_avail()
1134 for (i = 0; i < info->als_gain_tbl_size; i++) { in ltr501_show_intensity_scale_avail()
1135 if (info->als_gain[i].scale == LTR501_RESERVED_GAIN) in ltr501_show_intensity_scale_avail()
1137 len += scnprintf(buf + len, PAGE_SIZE - len, "%d.%06d ", in ltr501_show_intensity_scale_avail()
1138 info->als_gain[i].scale, in ltr501_show_intensity_scale_avail()
1139 info->als_gain[i].uscale); in ltr501_show_intensity_scale_avail()
1142 buf[len - 1] = '\n'; in ltr501_show_intensity_scale_avail()
1269 ret = regmap_write(data->regmap, LTR501_ALS_CONTR, als_val); in ltr501_write_contr()
1273 return regmap_write(data->regmap, LTR501_PS_CONTR, ps_val); in ltr501_write_contr()
1279 struct iio_dev *indio_dev = pf->indio_dev; in ltr501_trigger_handler()
1293 if (test_bit(0, indio_dev->active_scan_mask) || in ltr501_trigger_handler()
1294 test_bit(1, indio_dev->active_scan_mask)) in ltr501_trigger_handler()
1296 if (test_bit(2, indio_dev->active_scan_mask)) in ltr501_trigger_handler()
1304 ret = regmap_bulk_read(data->regmap, LTR501_ALS_DATA1, in ltr501_trigger_handler()
1308 if (test_bit(0, indio_dev->active_scan_mask)) in ltr501_trigger_handler()
1310 if (test_bit(1, indio_dev->active_scan_mask)) in ltr501_trigger_handler()
1315 ret = regmap_bulk_read(data->regmap, LTR501_PS_DATA, in ltr501_trigger_handler()
1326 iio_trigger_notify_done(indio_dev->trig); in ltr501_trigger_handler()
1337 ret = regmap_read(data->regmap, LTR501_ALS_PS_STATUS, &status); in ltr501_interrupt_handler()
1339 dev_err(&data->client->dev, in ltr501_interrupt_handler()
1365 ret = regmap_read(data->regmap, LTR501_ALS_CONTR, &status); in ltr501_init()
1369 data->als_contr = status | data->chip_info->als_mode_active; in ltr501_init()
1371 ret = regmap_read(data->regmap, LTR501_PS_CONTR, &status); in ltr501_init()
1375 data->ps_contr = status | LTR501_CONTR_ACTIVE; in ltr501_init()
1377 ret = ltr501_read_intr_prst(data, IIO_INTENSITY, &data->als_period); in ltr501_init()
1381 ret = ltr501_read_intr_prst(data, IIO_PROXIMITY, &data->ps_period); in ltr501_init()
1385 return ltr501_write_contr(data, data->als_contr, data->ps_contr); in ltr501_init()
1415 return ltr501_write_contr(data, data->als_contr & in ltr501_powerdown()
1416 ~data->chip_info->als_mode_active, in ltr501_powerdown()
1417 data->ps_contr & ~LTR501_CONTR_ACTIVE); in ltr501_powerdown()
1432 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); in ltr501_probe()
1434 return -ENOMEM; in ltr501_probe()
1438 dev_err(&client->dev, "Regmap initialization failed.\n"); in ltr501_probe()
1444 data->client = client; in ltr501_probe()
1445 data->regmap = regmap; in ltr501_probe()
1446 mutex_init(&data->lock_als); in ltr501_probe()
1447 mutex_init(&data->lock_ps); in ltr501_probe()
1449 ret = devm_regulator_bulk_get_enable(&client->dev, in ltr501_probe()
1453 return dev_err_probe(&client->dev, ret, in ltr501_probe()
1456 data->reg_it = devm_regmap_field_alloc(&client->dev, regmap, in ltr501_probe()
1458 if (IS_ERR(data->reg_it)) { in ltr501_probe()
1459 dev_err(&client->dev, "Integ time reg field init failed.\n"); in ltr501_probe()
1460 return PTR_ERR(data->reg_it); in ltr501_probe()
1463 data->reg_als_intr = devm_regmap_field_alloc(&client->dev, regmap, in ltr501_probe()
1465 if (IS_ERR(data->reg_als_intr)) { in ltr501_probe()
1466 dev_err(&client->dev, "ALS intr mode reg field init failed\n"); in ltr501_probe()
1467 return PTR_ERR(data->reg_als_intr); in ltr501_probe()
1470 data->reg_ps_intr = devm_regmap_field_alloc(&client->dev, regmap, in ltr501_probe()
1472 if (IS_ERR(data->reg_ps_intr)) { in ltr501_probe()
1473 dev_err(&client->dev, "PS intr mode reg field init failed.\n"); in ltr501_probe()
1474 return PTR_ERR(data->reg_ps_intr); in ltr501_probe()
1477 data->reg_als_rate = devm_regmap_field_alloc(&client->dev, regmap, in ltr501_probe()
1479 if (IS_ERR(data->reg_als_rate)) { in ltr501_probe()
1480 dev_err(&client->dev, "ALS samp rate field init failed.\n"); in ltr501_probe()
1481 return PTR_ERR(data->reg_als_rate); in ltr501_probe()
1484 data->reg_ps_rate = devm_regmap_field_alloc(&client->dev, regmap, in ltr501_probe()
1486 if (IS_ERR(data->reg_ps_rate)) { in ltr501_probe()
1487 dev_err(&client->dev, "PS samp rate field init failed.\n"); in ltr501_probe()
1488 return PTR_ERR(data->reg_ps_rate); in ltr501_probe()
1491 data->reg_als_prst = devm_regmap_field_alloc(&client->dev, regmap, in ltr501_probe()
1493 if (IS_ERR(data->reg_als_prst)) { in ltr501_probe()
1494 dev_err(&client->dev, "ALS prst reg field init failed\n"); in ltr501_probe()
1495 return PTR_ERR(data->reg_als_prst); in ltr501_probe()
1498 data->reg_ps_prst = devm_regmap_field_alloc(&client->dev, regmap, in ltr501_probe()
1500 if (IS_ERR(data->reg_ps_prst)) { in ltr501_probe()
1501 dev_err(&client->dev, "PS prst reg field init failed.\n"); in ltr501_probe()
1502 return PTR_ERR(data->reg_ps_prst); in ltr501_probe()
1505 ret = regmap_read(data->regmap, LTR501_PART_ID, &partid); in ltr501_probe()
1510 name = id->name; in ltr501_probe()
1511 chip_idx = id->driver_data; in ltr501_probe()
1513 name = iio_get_acpi_device_name_and_data(&client->dev, &ddata); in ltr501_probe()
1517 return -ENODEV; in ltr501_probe()
1519 data->chip_info = <r501_chip_info_tbl[chip_idx]; in ltr501_probe()
1521 if ((partid >> 4) != data->chip_info->partid) in ltr501_probe()
1522 return -ENODEV; in ltr501_probe()
1524 if (device_property_read_u32(&client->dev, "proximity-near-level", in ltr501_probe()
1525 &data->near_level)) in ltr501_probe()
1526 data->near_level = 0; in ltr501_probe()
1528 indio_dev->info = data->chip_info->info; in ltr501_probe()
1529 indio_dev->channels = data->chip_info->channels; in ltr501_probe()
1530 indio_dev->num_channels = data->chip_info->no_channels; in ltr501_probe()
1531 indio_dev->name = name; in ltr501_probe()
1532 indio_dev->modes = INDIO_DIRECT_MODE; in ltr501_probe()
1538 if (client->irq > 0) { in ltr501_probe()
1539 ret = devm_request_threaded_irq(&client->dev, client->irq, in ltr501_probe()
1546 dev_err(&client->dev, "request irq (%d) failed\n", in ltr501_probe()
1547 client->irq); in ltr501_probe()
1551 indio_dev->info = data->chip_info->info_no_irq; in ltr501_probe()
1593 return ltr501_write_contr(data, data->als_contr, in ltr501_resume()
1594 data->ps_contr); in ltr501_resume()
1640 MODULE_DESCRIPTION("Lite-On LTR501 ambient light and proximity sensor driver");