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707 lines
18 KiB
707 lines
18 KiB
// SPDX-License-Identifier: GPL-2.0-only |
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/* |
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* Sensortek STK3310/STK3311 Ambient Light and Proximity Sensor |
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* |
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* Copyright (c) 2015, Intel Corporation. |
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* |
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* IIO driver for STK3310/STK3311. 7-bit I2C address: 0x48. |
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*/ |
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#include <linux/acpi.h> |
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#include <linux/i2c.h> |
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#include <linux/interrupt.h> |
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#include <linux/kernel.h> |
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#include <linux/module.h> |
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#include <linux/regmap.h> |
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#include <linux/iio/events.h> |
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#include <linux/iio/iio.h> |
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#include <linux/iio/sysfs.h> |
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#define STK3310_REG_STATE 0x00 |
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#define STK3310_REG_PSCTRL 0x01 |
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#define STK3310_REG_ALSCTRL 0x02 |
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#define STK3310_REG_INT 0x04 |
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#define STK3310_REG_THDH_PS 0x06 |
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#define STK3310_REG_THDL_PS 0x08 |
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#define STK3310_REG_FLAG 0x10 |
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#define STK3310_REG_PS_DATA_MSB 0x11 |
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#define STK3310_REG_PS_DATA_LSB 0x12 |
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#define STK3310_REG_ALS_DATA_MSB 0x13 |
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#define STK3310_REG_ALS_DATA_LSB 0x14 |
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#define STK3310_REG_ID 0x3E |
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#define STK3310_MAX_REG 0x80 |
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#define STK3310_STATE_EN_PS BIT(0) |
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#define STK3310_STATE_EN_ALS BIT(1) |
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#define STK3310_STATE_STANDBY 0x00 |
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#define STK3310_CHIP_ID_VAL 0x13 |
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#define STK3311_CHIP_ID_VAL 0x1D |
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#define STK3311X_CHIP_ID_VAL 0x12 |
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#define STK3335_CHIP_ID_VAL 0x51 |
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#define STK3310_PSINT_EN 0x01 |
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#define STK3310_PS_MAX_VAL 0xFFFF |
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#define STK3310_DRIVER_NAME "stk3310" |
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#define STK3310_REGMAP_NAME "stk3310_regmap" |
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#define STK3310_EVENT "stk3310_event" |
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#define STK3310_SCALE_AVAILABLE "6.4 1.6 0.4 0.1" |
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#define STK3310_IT_AVAILABLE \ |
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"0.000185 0.000370 0.000741 0.001480 0.002960 0.005920 0.011840 " \ |
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"0.023680 0.047360 0.094720 0.189440 0.378880 0.757760 1.515520 " \ |
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"3.031040 6.062080" |
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#define STK3310_REGFIELD(name) \ |
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do { \ |
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data->reg_##name = \ |
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devm_regmap_field_alloc(&client->dev, regmap, \ |
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stk3310_reg_field_##name); \ |
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if (IS_ERR(data->reg_##name)) { \ |
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dev_err(&client->dev, "reg field alloc failed.\n"); \ |
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return PTR_ERR(data->reg_##name); \ |
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} \ |
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} while (0) |
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static const struct reg_field stk3310_reg_field_state = |
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REG_FIELD(STK3310_REG_STATE, 0, 2); |
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static const struct reg_field stk3310_reg_field_als_gain = |
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REG_FIELD(STK3310_REG_ALSCTRL, 4, 5); |
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static const struct reg_field stk3310_reg_field_ps_gain = |
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REG_FIELD(STK3310_REG_PSCTRL, 4, 5); |
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static const struct reg_field stk3310_reg_field_als_it = |
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REG_FIELD(STK3310_REG_ALSCTRL, 0, 3); |
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static const struct reg_field stk3310_reg_field_ps_it = |
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REG_FIELD(STK3310_REG_PSCTRL, 0, 3); |
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static const struct reg_field stk3310_reg_field_int_ps = |
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REG_FIELD(STK3310_REG_INT, 0, 2); |
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static const struct reg_field stk3310_reg_field_flag_psint = |
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REG_FIELD(STK3310_REG_FLAG, 4, 4); |
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static const struct reg_field stk3310_reg_field_flag_nf = |
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REG_FIELD(STK3310_REG_FLAG, 0, 0); |
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/* Estimate maximum proximity values with regard to measurement scale. */ |
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static const int stk3310_ps_max[4] = { |
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STK3310_PS_MAX_VAL / 640, |
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STK3310_PS_MAX_VAL / 160, |
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STK3310_PS_MAX_VAL / 40, |
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STK3310_PS_MAX_VAL / 10 |
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}; |
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static const int stk3310_scale_table[][2] = { |
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{6, 400000}, {1, 600000}, {0, 400000}, {0, 100000} |
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}; |
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/* Integration time in seconds, microseconds */ |
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static const int stk3310_it_table[][2] = { |
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{0, 185}, {0, 370}, {0, 741}, {0, 1480}, |
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{0, 2960}, {0, 5920}, {0, 11840}, {0, 23680}, |
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{0, 47360}, {0, 94720}, {0, 189440}, {0, 378880}, |
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{0, 757760}, {1, 515520}, {3, 31040}, {6, 62080}, |
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}; |
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struct stk3310_data { |
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struct i2c_client *client; |
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struct mutex lock; |
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bool als_enabled; |
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bool ps_enabled; |
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u64 timestamp; |
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struct regmap *regmap; |
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struct regmap_field *reg_state; |
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struct regmap_field *reg_als_gain; |
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struct regmap_field *reg_ps_gain; |
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struct regmap_field *reg_als_it; |
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struct regmap_field *reg_ps_it; |
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struct regmap_field *reg_int_ps; |
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struct regmap_field *reg_flag_psint; |
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struct regmap_field *reg_flag_nf; |
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}; |
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static const struct iio_event_spec stk3310_events[] = { |
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/* Proximity event */ |
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{ |
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.type = IIO_EV_TYPE_THRESH, |
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.dir = IIO_EV_DIR_RISING, |
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.mask_separate = BIT(IIO_EV_INFO_VALUE) | |
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BIT(IIO_EV_INFO_ENABLE), |
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}, |
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/* Out-of-proximity event */ |
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{ |
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.type = IIO_EV_TYPE_THRESH, |
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.dir = IIO_EV_DIR_FALLING, |
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.mask_separate = BIT(IIO_EV_INFO_VALUE) | |
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BIT(IIO_EV_INFO_ENABLE), |
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}, |
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}; |
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static const struct iio_chan_spec stk3310_channels[] = { |
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{ |
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.type = IIO_LIGHT, |
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.info_mask_separate = |
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BIT(IIO_CHAN_INFO_RAW) | |
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BIT(IIO_CHAN_INFO_SCALE) | |
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BIT(IIO_CHAN_INFO_INT_TIME), |
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}, |
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{ |
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.type = IIO_PROXIMITY, |
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.info_mask_separate = |
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BIT(IIO_CHAN_INFO_RAW) | |
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BIT(IIO_CHAN_INFO_SCALE) | |
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BIT(IIO_CHAN_INFO_INT_TIME), |
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.event_spec = stk3310_events, |
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.num_event_specs = ARRAY_SIZE(stk3310_events), |
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} |
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}; |
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static IIO_CONST_ATTR(in_illuminance_scale_available, STK3310_SCALE_AVAILABLE); |
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static IIO_CONST_ATTR(in_proximity_scale_available, STK3310_SCALE_AVAILABLE); |
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static IIO_CONST_ATTR(in_illuminance_integration_time_available, |
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STK3310_IT_AVAILABLE); |
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static IIO_CONST_ATTR(in_proximity_integration_time_available, |
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STK3310_IT_AVAILABLE); |
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static struct attribute *stk3310_attributes[] = { |
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&iio_const_attr_in_illuminance_scale_available.dev_attr.attr, |
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&iio_const_attr_in_proximity_scale_available.dev_attr.attr, |
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&iio_const_attr_in_illuminance_integration_time_available.dev_attr.attr, |
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&iio_const_attr_in_proximity_integration_time_available.dev_attr.attr, |
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NULL, |
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}; |
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static const struct attribute_group stk3310_attribute_group = { |
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.attrs = stk3310_attributes |
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}; |
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static int stk3310_get_index(const int table[][2], int table_size, |
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int val, int val2) |
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{ |
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int i; |
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for (i = 0; i < table_size; i++) { |
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if (val == table[i][0] && val2 == table[i][1]) |
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return i; |
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} |
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return -EINVAL; |
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} |
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static int stk3310_read_event(struct iio_dev *indio_dev, |
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const struct iio_chan_spec *chan, |
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enum iio_event_type type, |
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enum iio_event_direction dir, |
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enum iio_event_info info, |
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int *val, int *val2) |
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{ |
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u8 reg; |
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__be16 buf; |
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int ret; |
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struct stk3310_data *data = iio_priv(indio_dev); |
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if (info != IIO_EV_INFO_VALUE) |
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return -EINVAL; |
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/* Only proximity interrupts are implemented at the moment. */ |
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if (dir == IIO_EV_DIR_RISING) |
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reg = STK3310_REG_THDH_PS; |
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else if (dir == IIO_EV_DIR_FALLING) |
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reg = STK3310_REG_THDL_PS; |
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else |
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return -EINVAL; |
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mutex_lock(&data->lock); |
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ret = regmap_bulk_read(data->regmap, reg, &buf, 2); |
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mutex_unlock(&data->lock); |
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if (ret < 0) { |
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dev_err(&data->client->dev, "register read failed\n"); |
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return ret; |
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} |
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*val = be16_to_cpu(buf); |
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return IIO_VAL_INT; |
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} |
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static int stk3310_write_event(struct iio_dev *indio_dev, |
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const struct iio_chan_spec *chan, |
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enum iio_event_type type, |
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enum iio_event_direction dir, |
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enum iio_event_info info, |
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int val, int val2) |
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{ |
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u8 reg; |
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__be16 buf; |
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int ret; |
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unsigned int index; |
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struct stk3310_data *data = iio_priv(indio_dev); |
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struct i2c_client *client = data->client; |
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ret = regmap_field_read(data->reg_ps_gain, &index); |
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if (ret < 0) |
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return ret; |
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if (val < 0 || val > stk3310_ps_max[index]) |
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return -EINVAL; |
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if (dir == IIO_EV_DIR_RISING) |
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reg = STK3310_REG_THDH_PS; |
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else if (dir == IIO_EV_DIR_FALLING) |
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reg = STK3310_REG_THDL_PS; |
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else |
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return -EINVAL; |
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buf = cpu_to_be16(val); |
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ret = regmap_bulk_write(data->regmap, reg, &buf, 2); |
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if (ret < 0) |
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dev_err(&client->dev, "failed to set PS threshold!\n"); |
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return ret; |
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} |
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static int stk3310_read_event_config(struct iio_dev *indio_dev, |
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const struct iio_chan_spec *chan, |
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enum iio_event_type type, |
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enum iio_event_direction dir) |
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{ |
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unsigned int event_val; |
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int ret; |
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struct stk3310_data *data = iio_priv(indio_dev); |
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ret = regmap_field_read(data->reg_int_ps, &event_val); |
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if (ret < 0) |
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return ret; |
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return event_val; |
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} |
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static int stk3310_write_event_config(struct iio_dev *indio_dev, |
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const struct iio_chan_spec *chan, |
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enum iio_event_type type, |
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enum iio_event_direction dir, |
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int state) |
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{ |
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int ret; |
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struct stk3310_data *data = iio_priv(indio_dev); |
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struct i2c_client *client = data->client; |
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if (state < 0 || state > 7) |
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return -EINVAL; |
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/* Set INT_PS value */ |
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mutex_lock(&data->lock); |
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ret = regmap_field_write(data->reg_int_ps, state); |
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if (ret < 0) |
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dev_err(&client->dev, "failed to set interrupt mode\n"); |
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mutex_unlock(&data->lock); |
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return ret; |
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} |
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static int stk3310_read_raw(struct iio_dev *indio_dev, |
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struct iio_chan_spec const *chan, |
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int *val, int *val2, long mask) |
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{ |
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u8 reg; |
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__be16 buf; |
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int ret; |
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unsigned int index; |
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struct stk3310_data *data = iio_priv(indio_dev); |
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struct i2c_client *client = data->client; |
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if (chan->type != IIO_LIGHT && chan->type != IIO_PROXIMITY) |
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return -EINVAL; |
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switch (mask) { |
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case IIO_CHAN_INFO_RAW: |
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if (chan->type == IIO_LIGHT) |
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reg = STK3310_REG_ALS_DATA_MSB; |
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else |
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reg = STK3310_REG_PS_DATA_MSB; |
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mutex_lock(&data->lock); |
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ret = regmap_bulk_read(data->regmap, reg, &buf, 2); |
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if (ret < 0) { |
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dev_err(&client->dev, "register read failed\n"); |
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mutex_unlock(&data->lock); |
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return ret; |
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} |
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*val = be16_to_cpu(buf); |
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mutex_unlock(&data->lock); |
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return IIO_VAL_INT; |
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case IIO_CHAN_INFO_INT_TIME: |
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if (chan->type == IIO_LIGHT) |
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ret = regmap_field_read(data->reg_als_it, &index); |
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else |
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ret = regmap_field_read(data->reg_ps_it, &index); |
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if (ret < 0) |
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return ret; |
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*val = stk3310_it_table[index][0]; |
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*val2 = stk3310_it_table[index][1]; |
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return IIO_VAL_INT_PLUS_MICRO; |
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case IIO_CHAN_INFO_SCALE: |
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if (chan->type == IIO_LIGHT) |
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ret = regmap_field_read(data->reg_als_gain, &index); |
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else |
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ret = regmap_field_read(data->reg_ps_gain, &index); |
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if (ret < 0) |
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return ret; |
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*val = stk3310_scale_table[index][0]; |
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*val2 = stk3310_scale_table[index][1]; |
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return IIO_VAL_INT_PLUS_MICRO; |
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} |
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return -EINVAL; |
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} |
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static int stk3310_write_raw(struct iio_dev *indio_dev, |
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struct iio_chan_spec const *chan, |
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int val, int val2, long mask) |
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{ |
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int ret; |
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int index; |
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struct stk3310_data *data = iio_priv(indio_dev); |
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if (chan->type != IIO_LIGHT && chan->type != IIO_PROXIMITY) |
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return -EINVAL; |
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switch (mask) { |
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case IIO_CHAN_INFO_INT_TIME: |
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index = stk3310_get_index(stk3310_it_table, |
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ARRAY_SIZE(stk3310_it_table), |
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val, val2); |
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if (index < 0) |
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return -EINVAL; |
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mutex_lock(&data->lock); |
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if (chan->type == IIO_LIGHT) |
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ret = regmap_field_write(data->reg_als_it, index); |
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else |
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ret = regmap_field_write(data->reg_ps_it, index); |
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if (ret < 0) |
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dev_err(&data->client->dev, |
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"sensor configuration failed\n"); |
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mutex_unlock(&data->lock); |
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return ret; |
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case IIO_CHAN_INFO_SCALE: |
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index = stk3310_get_index(stk3310_scale_table, |
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ARRAY_SIZE(stk3310_scale_table), |
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val, val2); |
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if (index < 0) |
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return -EINVAL; |
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mutex_lock(&data->lock); |
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if (chan->type == IIO_LIGHT) |
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ret = regmap_field_write(data->reg_als_gain, index); |
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else |
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ret = regmap_field_write(data->reg_ps_gain, index); |
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if (ret < 0) |
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dev_err(&data->client->dev, |
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"sensor configuration failed\n"); |
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mutex_unlock(&data->lock); |
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return ret; |
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} |
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return -EINVAL; |
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} |
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static const struct iio_info stk3310_info = { |
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.read_raw = stk3310_read_raw, |
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.write_raw = stk3310_write_raw, |
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.attrs = &stk3310_attribute_group, |
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.read_event_value = stk3310_read_event, |
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.write_event_value = stk3310_write_event, |
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.read_event_config = stk3310_read_event_config, |
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.write_event_config = stk3310_write_event_config, |
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}; |
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static int stk3310_set_state(struct stk3310_data *data, u8 state) |
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{ |
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int ret; |
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struct i2c_client *client = data->client; |
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/* 3-bit state; 0b100 is not supported. */ |
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if (state > 7 || state == 4) |
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return -EINVAL; |
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mutex_lock(&data->lock); |
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ret = regmap_field_write(data->reg_state, state); |
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if (ret < 0) { |
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dev_err(&client->dev, "failed to change sensor state\n"); |
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} else if (state != STK3310_STATE_STANDBY) { |
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/* Don't reset the 'enabled' flags if we're going in standby */ |
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data->ps_enabled = !!(state & STK3310_STATE_EN_PS); |
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data->als_enabled = !!(state & STK3310_STATE_EN_ALS); |
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} |
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mutex_unlock(&data->lock); |
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return ret; |
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} |
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static int stk3310_init(struct iio_dev *indio_dev) |
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{ |
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int ret; |
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int chipid; |
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u8 state; |
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struct stk3310_data *data = iio_priv(indio_dev); |
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struct i2c_client *client = data->client; |
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ret = regmap_read(data->regmap, STK3310_REG_ID, &chipid); |
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if (ret < 0) |
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return ret; |
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if (chipid != STK3310_CHIP_ID_VAL && |
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chipid != STK3311_CHIP_ID_VAL && |
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chipid != STK3311X_CHIP_ID_VAL && |
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chipid != STK3335_CHIP_ID_VAL) { |
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dev_err(&client->dev, "invalid chip id: 0x%x\n", chipid); |
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return -ENODEV; |
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} |
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state = STK3310_STATE_EN_ALS | STK3310_STATE_EN_PS; |
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ret = stk3310_set_state(data, state); |
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if (ret < 0) { |
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dev_err(&client->dev, "failed to enable sensor"); |
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return ret; |
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} |
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|
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/* Enable PS interrupts */ |
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ret = regmap_field_write(data->reg_int_ps, STK3310_PSINT_EN); |
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if (ret < 0) |
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dev_err(&client->dev, "failed to enable interrupts!\n"); |
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return ret; |
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} |
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static bool stk3310_is_volatile_reg(struct device *dev, unsigned int reg) |
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{ |
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switch (reg) { |
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case STK3310_REG_ALS_DATA_MSB: |
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case STK3310_REG_ALS_DATA_LSB: |
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case STK3310_REG_PS_DATA_LSB: |
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case STK3310_REG_PS_DATA_MSB: |
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case STK3310_REG_FLAG: |
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return true; |
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default: |
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return false; |
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} |
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} |
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static const struct regmap_config stk3310_regmap_config = { |
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.name = STK3310_REGMAP_NAME, |
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.reg_bits = 8, |
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.val_bits = 8, |
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.max_register = STK3310_MAX_REG, |
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.cache_type = REGCACHE_RBTREE, |
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.volatile_reg = stk3310_is_volatile_reg, |
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}; |
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static int stk3310_regmap_init(struct stk3310_data *data) |
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{ |
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struct regmap *regmap; |
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struct i2c_client *client; |
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|
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client = data->client; |
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regmap = devm_regmap_init_i2c(client, &stk3310_regmap_config); |
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if (IS_ERR(regmap)) { |
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dev_err(&client->dev, "regmap initialization failed.\n"); |
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return PTR_ERR(regmap); |
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} |
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data->regmap = regmap; |
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|
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STK3310_REGFIELD(state); |
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STK3310_REGFIELD(als_gain); |
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STK3310_REGFIELD(ps_gain); |
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STK3310_REGFIELD(als_it); |
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STK3310_REGFIELD(ps_it); |
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STK3310_REGFIELD(int_ps); |
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STK3310_REGFIELD(flag_psint); |
|
STK3310_REGFIELD(flag_nf); |
|
|
|
return 0; |
|
} |
|
|
|
static irqreturn_t stk3310_irq_handler(int irq, void *private) |
|
{ |
|
struct iio_dev *indio_dev = private; |
|
struct stk3310_data *data = iio_priv(indio_dev); |
|
|
|
data->timestamp = iio_get_time_ns(indio_dev); |
|
|
|
return IRQ_WAKE_THREAD; |
|
} |
|
|
|
static irqreturn_t stk3310_irq_event_handler(int irq, void *private) |
|
{ |
|
int ret; |
|
unsigned int dir; |
|
u64 event; |
|
|
|
struct iio_dev *indio_dev = private; |
|
struct stk3310_data *data = iio_priv(indio_dev); |
|
|
|
/* Read FLAG_NF to figure out what threshold has been met. */ |
|
mutex_lock(&data->lock); |
|
ret = regmap_field_read(data->reg_flag_nf, &dir); |
|
if (ret < 0) { |
|
dev_err(&data->client->dev, "register read failed\n"); |
|
mutex_unlock(&data->lock); |
|
return ret; |
|
} |
|
event = IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY, 1, |
|
IIO_EV_TYPE_THRESH, |
|
(dir ? IIO_EV_DIR_FALLING : |
|
IIO_EV_DIR_RISING)); |
|
iio_push_event(indio_dev, event, data->timestamp); |
|
|
|
/* Reset the interrupt flag */ |
|
ret = regmap_field_write(data->reg_flag_psint, 0); |
|
if (ret < 0) |
|
dev_err(&data->client->dev, "failed to reset interrupts\n"); |
|
mutex_unlock(&data->lock); |
|
|
|
return IRQ_HANDLED; |
|
} |
|
|
|
static int stk3310_probe(struct i2c_client *client, |
|
const struct i2c_device_id *id) |
|
{ |
|
int ret; |
|
struct iio_dev *indio_dev; |
|
struct stk3310_data *data; |
|
|
|
indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); |
|
if (!indio_dev) { |
|
dev_err(&client->dev, "iio allocation failed!\n"); |
|
return -ENOMEM; |
|
} |
|
|
|
data = iio_priv(indio_dev); |
|
data->client = client; |
|
i2c_set_clientdata(client, indio_dev); |
|
mutex_init(&data->lock); |
|
|
|
ret = stk3310_regmap_init(data); |
|
if (ret < 0) |
|
return ret; |
|
|
|
indio_dev->info = &stk3310_info; |
|
indio_dev->name = STK3310_DRIVER_NAME; |
|
indio_dev->modes = INDIO_DIRECT_MODE; |
|
indio_dev->channels = stk3310_channels; |
|
indio_dev->num_channels = ARRAY_SIZE(stk3310_channels); |
|
|
|
ret = stk3310_init(indio_dev); |
|
if (ret < 0) |
|
return ret; |
|
|
|
if (client->irq > 0) { |
|
ret = devm_request_threaded_irq(&client->dev, client->irq, |
|
stk3310_irq_handler, |
|
stk3310_irq_event_handler, |
|
IRQF_TRIGGER_FALLING | |
|
IRQF_ONESHOT, |
|
STK3310_EVENT, indio_dev); |
|
if (ret < 0) { |
|
dev_err(&client->dev, "request irq %d failed\n", |
|
client->irq); |
|
goto err_standby; |
|
} |
|
} |
|
|
|
ret = iio_device_register(indio_dev); |
|
if (ret < 0) { |
|
dev_err(&client->dev, "device_register failed\n"); |
|
goto err_standby; |
|
} |
|
|
|
return 0; |
|
|
|
err_standby: |
|
stk3310_set_state(data, STK3310_STATE_STANDBY); |
|
return ret; |
|
} |
|
|
|
static int stk3310_remove(struct i2c_client *client) |
|
{ |
|
struct iio_dev *indio_dev = i2c_get_clientdata(client); |
|
|
|
iio_device_unregister(indio_dev); |
|
return stk3310_set_state(iio_priv(indio_dev), STK3310_STATE_STANDBY); |
|
} |
|
|
|
#ifdef CONFIG_PM_SLEEP |
|
static int stk3310_suspend(struct device *dev) |
|
{ |
|
struct stk3310_data *data; |
|
|
|
data = iio_priv(i2c_get_clientdata(to_i2c_client(dev))); |
|
|
|
return stk3310_set_state(data, STK3310_STATE_STANDBY); |
|
} |
|
|
|
static int stk3310_resume(struct device *dev) |
|
{ |
|
u8 state = 0; |
|
struct stk3310_data *data; |
|
|
|
data = iio_priv(i2c_get_clientdata(to_i2c_client(dev))); |
|
if (data->ps_enabled) |
|
state |= STK3310_STATE_EN_PS; |
|
if (data->als_enabled) |
|
state |= STK3310_STATE_EN_ALS; |
|
|
|
return stk3310_set_state(data, state); |
|
} |
|
|
|
static SIMPLE_DEV_PM_OPS(stk3310_pm_ops, stk3310_suspend, stk3310_resume); |
|
|
|
#define STK3310_PM_OPS (&stk3310_pm_ops) |
|
#else |
|
#define STK3310_PM_OPS NULL |
|
#endif |
|
|
|
static const struct i2c_device_id stk3310_i2c_id[] = { |
|
{"STK3310", 0}, |
|
{"STK3311", 0}, |
|
{"STK3335", 0}, |
|
{} |
|
}; |
|
MODULE_DEVICE_TABLE(i2c, stk3310_i2c_id); |
|
|
|
static const struct acpi_device_id stk3310_acpi_id[] = { |
|
{"STK3310", 0}, |
|
{"STK3311", 0}, |
|
{"STK3335", 0}, |
|
{} |
|
}; |
|
|
|
MODULE_DEVICE_TABLE(acpi, stk3310_acpi_id); |
|
|
|
static const struct of_device_id stk3310_of_match[] = { |
|
{ .compatible = "sensortek,stk3310", }, |
|
{ .compatible = "sensortek,stk3311", }, |
|
{ .compatible = "sensortek,stk3335", }, |
|
{} |
|
}; |
|
MODULE_DEVICE_TABLE(of, stk3310_of_match); |
|
|
|
static struct i2c_driver stk3310_driver = { |
|
.driver = { |
|
.name = "stk3310", |
|
.of_match_table = stk3310_of_match, |
|
.pm = STK3310_PM_OPS, |
|
.acpi_match_table = ACPI_PTR(stk3310_acpi_id), |
|
}, |
|
.probe = stk3310_probe, |
|
.remove = stk3310_remove, |
|
.id_table = stk3310_i2c_id, |
|
}; |
|
|
|
module_i2c_driver(stk3310_driver); |
|
|
|
MODULE_AUTHOR("Tiberiu Breana <[email protected]>"); |
|
MODULE_DESCRIPTION("STK3310 Ambient Light and Proximity Sensor driver"); |
|
MODULE_LICENSE("GPL v2");
|
|
|