diff options
Diffstat (limited to 'drivers/iio/light')
37 files changed, 323 insertions, 112 deletions
diff --git a/drivers/iio/light/acpi-als.c b/drivers/iio/light/acpi-als.c index f0b47c501f4e..c35e2f8df339 100644 --- a/drivers/iio/light/acpi-als.c +++ b/drivers/iio/light/acpi-als.c @@ -171,7 +171,6 @@ static int acpi_als_read_raw(struct iio_dev *indio_dev, } static const struct iio_info acpi_als_info = { - .driver_module = THIS_MODULE, .read_raw = acpi_als_read_raw, }; diff --git a/drivers/iio/light/adjd_s311.c b/drivers/iio/light/adjd_s311.c index 0113fc843a81..e45bb6a277c2 100644 --- a/drivers/iio/light/adjd_s311.c +++ b/drivers/iio/light/adjd_s311.c @@ -245,7 +245,6 @@ static const struct iio_info adjd_s311_info = { .read_raw = adjd_s311_read_raw, .write_raw = adjd_s311_write_raw, .update_scan_mode = adjd_s311_update_scan_mode, - .driver_module = THIS_MODULE, }; static int adjd_s311_probe(struct i2c_client *client, diff --git a/drivers/iio/light/al3320a.c b/drivers/iio/light/al3320a.c index 6aac6513fd41..66623facea9a 100644 --- a/drivers/iio/light/al3320a.c +++ b/drivers/iio/light/al3320a.c @@ -168,7 +168,6 @@ static int al3320a_write_raw(struct iio_dev *indio_dev, } static const struct iio_info al3320a_info = { - .driver_module = THIS_MODULE, .read_raw = al3320a_read_raw, .write_raw = al3320a_write_raw, .attrs = &al3320a_attribute_group, diff --git a/drivers/iio/light/apds9300.c b/drivers/iio/light/apds9300.c index 05eacd1ee40f..5c15736fb93e 100644 --- a/drivers/iio/light/apds9300.c +++ b/drivers/iio/light/apds9300.c @@ -337,12 +337,10 @@ static int apds9300_write_interrupt_config(struct iio_dev *indio_dev, } static const struct iio_info apds9300_info_no_irq = { - .driver_module = THIS_MODULE, .read_raw = apds9300_read_raw, }; static const struct iio_info apds9300_info = { - .driver_module = THIS_MODULE, .read_raw = apds9300_read_raw, .read_event_value = apds9300_read_thresh, .write_event_value = apds9300_write_thresh, diff --git a/drivers/iio/light/apds9960.c b/drivers/iio/light/apds9960.c index 518a47e9377b..a8fa00e31c39 100644 --- a/drivers/iio/light/apds9960.c +++ b/drivers/iio/light/apds9960.c @@ -744,7 +744,6 @@ static int apds9960_write_event_config(struct iio_dev *indio_dev, } static const struct iio_info apds9960_info = { - .driver_module = THIS_MODULE, .attrs = &apds9960_attribute_group, .read_raw = apds9960_read_raw, .write_raw = apds9960_write_raw, diff --git a/drivers/iio/light/bh1750.c b/drivers/iio/light/bh1750.c index 6c61187e630f..a814828e69f5 100644 --- a/drivers/iio/light/bh1750.c +++ b/drivers/iio/light/bh1750.c @@ -217,7 +217,6 @@ static const struct attribute_group bh1750_attribute_group = { }; static const struct iio_info bh1750_info = { - .driver_module = THIS_MODULE, .attrs = &bh1750_attribute_group, .read_raw = bh1750_read_raw, .write_raw = bh1750_write_raw, diff --git a/drivers/iio/light/bh1780.c b/drivers/iio/light/bh1780.c index b54dcba05a82..036f3bbe323c 100644 --- a/drivers/iio/light/bh1780.c +++ b/drivers/iio/light/bh1780.c @@ -128,7 +128,6 @@ static int bh1780_read_raw(struct iio_dev *indio_dev, } static const struct iio_info bh1780_info = { - .driver_module = THIS_MODULE, .read_raw = bh1780_read_raw, .debugfs_reg_access = bh1780_debugfs_reg_access, }; diff --git a/drivers/iio/light/cm32181.c b/drivers/iio/light/cm32181.c index d6fd0dace74f..aebf7dd071af 100644 --- a/drivers/iio/light/cm32181.c +++ b/drivers/iio/light/cm32181.c @@ -292,7 +292,6 @@ static const struct attribute_group cm32181_attribute_group = { }; static const struct iio_info cm32181_info = { - .driver_module = THIS_MODULE, .read_raw = &cm32181_read_raw, .write_raw = &cm32181_write_raw, .attrs = &cm32181_attribute_group, diff --git a/drivers/iio/light/cm3232.c b/drivers/iio/light/cm3232.c index 263e97235ea0..c639cf276ee6 100644 --- a/drivers/iio/light/cm3232.c +++ b/drivers/iio/light/cm3232.c @@ -322,7 +322,6 @@ static const struct attribute_group cm3232_attribute_group = { }; static const struct iio_info cm3232_info = { - .driver_module = THIS_MODULE, .read_raw = &cm3232_read_raw, .write_raw = &cm3232_write_raw, .attrs = &cm3232_attribute_group, diff --git a/drivers/iio/light/cm3323.c b/drivers/iio/light/cm3323.c index d823c112d54b..83b08b6dc60f 100644 --- a/drivers/iio/light/cm3323.c +++ b/drivers/iio/light/cm3323.c @@ -211,7 +211,6 @@ static int cm3323_write_raw(struct iio_dev *indio_dev, } static const struct iio_info cm3323_info = { - .driver_module = THIS_MODULE, .read_raw = cm3323_read_raw, .write_raw = cm3323_write_raw, .attrs = &cm3323_attribute_group, diff --git a/drivers/iio/light/cm3605.c b/drivers/iio/light/cm3605.c index 980624e9ffb5..e454bc6a33c6 100644 --- a/drivers/iio/light/cm3605.c +++ b/drivers/iio/light/cm3605.c @@ -126,7 +126,6 @@ static int cm3605_read_raw(struct iio_dev *indio_dev, } static const struct iio_info cm3605_info = { - .driver_module = THIS_MODULE, .read_raw = cm3605_read_raw, }; diff --git a/drivers/iio/light/cm36651.c b/drivers/iio/light/cm36651.c index 9d66e89c57ef..1dd8ed0121b3 100644 --- a/drivers/iio/light/cm36651.c +++ b/drivers/iio/light/cm36651.c @@ -612,7 +612,6 @@ static const struct attribute_group cm36651_attribute_group = { }; static const struct iio_info cm36651_info = { - .driver_module = THIS_MODULE, .read_raw = &cm36651_read_raw, .write_raw = &cm36651_write_raw, .read_event_value = &cm36651_read_prox_thresh, diff --git a/drivers/iio/light/cros_ec_light_prox.c b/drivers/iio/light/cros_ec_light_prox.c index 721722376fd0..b2a46b390d5c 100644 --- a/drivers/iio/light/cros_ec_light_prox.c +++ b/drivers/iio/light/cros_ec_light_prox.c @@ -175,7 +175,6 @@ static int cros_ec_light_prox_write(struct iio_dev *indio_dev, static const struct iio_info cros_ec_light_prox_info = { .read_raw = &cros_ec_light_prox_read, .write_raw = &cros_ec_light_prox_write, - .driver_module = THIS_MODULE, }; static int cros_ec_light_prox_probe(struct platform_device *pdev) diff --git a/drivers/iio/light/gp2ap020a00f.c b/drivers/iio/light/gp2ap020a00f.c index 6ada9149f142..44b13fbcd093 100644 --- a/drivers/iio/light/gp2ap020a00f.c +++ b/drivers/iio/light/gp2ap020a00f.c @@ -1384,7 +1384,6 @@ static const struct iio_info gp2ap020a00f_info = { .read_event_config = &gp2ap020a00f_read_event_config, .write_event_value = &gp2ap020a00f_write_event_val, .write_event_config = &gp2ap020a00f_write_event_config, - .driver_module = THIS_MODULE, }; static int gp2ap020a00f_buffer_postenable(struct iio_dev *indio_dev) @@ -1481,7 +1480,6 @@ static const struct iio_buffer_setup_ops gp2ap020a00f_buffer_setup_ops = { }; static const struct iio_trigger_ops gp2ap020a00f_trigger_ops = { - .owner = THIS_MODULE, }; static int gp2ap020a00f_probe(struct i2c_client *client, diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c index 059d964772c7..befd693a4a31 100644 --- a/drivers/iio/light/hid-sensor-als.c +++ b/drivers/iio/light/hid-sensor-als.c @@ -177,7 +177,6 @@ static int als_write_raw(struct iio_dev *indio_dev, } static const struct iio_info als_info = { - .driver_module = THIS_MODULE, .read_raw = &als_read_raw, .write_raw = &als_write_raw, }; diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c index 73fced8a63b7..45107f7537b5 100644 --- a/drivers/iio/light/hid-sensor-prox.c +++ b/drivers/iio/light/hid-sensor-prox.c @@ -156,7 +156,6 @@ static int prox_write_raw(struct iio_dev *indio_dev, } static const struct iio_info prox_info = { - .driver_module = THIS_MODULE, .read_raw = &prox_read_raw, .write_raw = &prox_write_raw, }; diff --git a/drivers/iio/light/isl29018.c b/drivers/iio/light/isl29018.c index 61f5924b472d..b45400f8fef4 100644 --- a/drivers/iio/light/isl29018.c +++ b/drivers/iio/light/isl29018.c @@ -624,14 +624,12 @@ static int isl29018_chip_init(struct isl29018_chip *chip) static const struct iio_info isl29018_info = { .attrs = &isl29018_group, - .driver_module = THIS_MODULE, .read_raw = isl29018_read_raw, .write_raw = isl29018_write_raw, }; static const struct iio_info isl29023_info = { .attrs = &isl29023_group, - .driver_module = THIS_MODULE, .read_raw = isl29018_read_raw, .write_raw = isl29018_write_raw, }; diff --git a/drivers/iio/light/isl29028.c b/drivers/iio/light/isl29028.c index 3d09c1fc4dad..f9912ab4f65c 100644 --- a/drivers/iio/light/isl29028.c +++ b/drivers/iio/light/isl29028.c @@ -536,7 +536,6 @@ static const struct iio_chan_spec isl29028_channels[] = { static const struct iio_info isl29028_info = { .attrs = &isl29108_group, - .driver_module = THIS_MODULE, .read_raw = isl29028_read_raw, .write_raw = isl29028_write_raw, }; diff --git a/drivers/iio/light/isl29125.c b/drivers/iio/light/isl29125.c index 1d2c0c8a1d4f..ed38edcd5efe 100644 --- a/drivers/iio/light/isl29125.c +++ b/drivers/iio/light/isl29125.c @@ -214,7 +214,6 @@ static const struct iio_info isl29125_info = { .read_raw = isl29125_read_raw, .write_raw = isl29125_write_raw, .attrs = &isl29125_attribute_group, - .driver_module = THIS_MODULE, }; static int isl29125_buffer_preenable(struct iio_dev *indio_dev) diff --git a/drivers/iio/light/jsa1212.c b/drivers/iio/light/jsa1212.c index e8a8931b4f50..811505d925b3 100644 --- a/drivers/iio/light/jsa1212.c +++ b/drivers/iio/light/jsa1212.c @@ -271,7 +271,6 @@ static const struct iio_chan_spec jsa1212_channels[] = { }; static const struct iio_info jsa1212_info = { - .driver_module = THIS_MODULE, .read_raw = &jsa1212_read_raw, }; diff --git a/drivers/iio/light/lm3533-als.c b/drivers/iio/light/lm3533-als.c index 0443fd2e8757..36208a3652e9 100644 --- a/drivers/iio/light/lm3533-als.c +++ b/drivers/iio/light/lm3533-als.c @@ -827,7 +827,6 @@ static int lm3533_als_disable(struct lm3533_als *als) static const struct iio_info lm3533_als_info = { .attrs = &lm3533_als_attribute_group, .event_attrs = &lm3533_als_event_attribute_group, - .driver_module = THIS_MODULE, .read_raw = &lm3533_als_read_raw, }; diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c index 67838edd8b37..830a2d45aa4d 100644 --- a/drivers/iio/light/ltr501.c +++ b/drivers/iio/light/ltr501.c @@ -1158,7 +1158,6 @@ static const struct iio_info ltr501_info_no_irq = { .read_raw = ltr501_read_raw, .write_raw = ltr501_write_raw, .attrs = <r501_attribute_group, - .driver_module = THIS_MODULE, }; static const struct iio_info ltr501_info = { @@ -1169,14 +1168,12 @@ static const struct iio_info ltr501_info = { .write_event_value = <r501_write_event, .read_event_config = <r501_read_event_config, .write_event_config = <r501_write_event_config, - .driver_module = THIS_MODULE, }; static const struct iio_info ltr301_info_no_irq = { .read_raw = ltr501_read_raw, .write_raw = ltr501_write_raw, .attrs = <r301_attribute_group, - .driver_module = THIS_MODULE, }; static const struct iio_info ltr301_info = { @@ -1187,7 +1184,6 @@ static const struct iio_info ltr301_info = { .write_event_value = <r501_write_event, .read_event_config = <r501_read_event_config, .write_event_config = <r501_write_event_config, - .driver_module = THIS_MODULE, }; static struct ltr501_chip_info ltr501_chip_info_tbl[] = { diff --git a/drivers/iio/light/max44000.c b/drivers/iio/light/max44000.c index 81bd8e8da4a6..bcdb0eb9e537 100644 --- a/drivers/iio/light/max44000.c +++ b/drivers/iio/light/max44000.c @@ -402,7 +402,6 @@ static const struct attribute_group max44000_attribute_group = { }; static const struct iio_info max44000_info = { - .driver_module = THIS_MODULE, .read_raw = max44000_read_raw, .write_raw = max44000_write_raw, .write_raw_get_fmt = max44000_write_raw_get_fmt, diff --git a/drivers/iio/light/opt3001.c b/drivers/iio/light/opt3001.c index b91ebc3483ce..54d88b60e303 100644 --- a/drivers/iio/light/opt3001.c +++ b/drivers/iio/light/opt3001.c @@ -585,7 +585,6 @@ err: } static const struct iio_info opt3001_info = { - .driver_module = THIS_MODULE, .attrs = &opt3001_attribute_group, .read_raw = opt3001_read_raw, .write_raw = opt3001_write_raw, diff --git a/drivers/iio/light/pa12203001.c b/drivers/iio/light/pa12203001.c index 76a9e12b46bc..30ea1a088dd9 100644 --- a/drivers/iio/light/pa12203001.c +++ b/drivers/iio/light/pa12203001.c @@ -306,7 +306,6 @@ static int pa12203001_write_raw(struct iio_dev *indio_dev, } static const struct iio_info pa12203001_info = { - .driver_module = THIS_MODULE, .read_raw = pa12203001_read_raw, .write_raw = pa12203001_write_raw, .attrs = &pa12203001_attr_group, diff --git a/drivers/iio/light/rpr0521.c b/drivers/iio/light/rpr0521.c index a6efa12613a2..ffe9ce798ea2 100644 --- a/drivers/iio/light/rpr0521.c +++ b/drivers/iio/light/rpr0521.c @@ -538,7 +538,6 @@ static int rpr0521_pxs_drdy_set_state(struct iio_trigger *trigger, static const struct iio_trigger_ops rpr0521_trigger_ops = { .set_trigger_state = rpr0521_pxs_drdy_set_state, - .owner = THIS_MODULE, }; @@ -830,7 +829,6 @@ static int rpr0521_write_raw(struct iio_dev *indio_dev, } static const struct iio_info rpr0521_info = { - .driver_module = THIS_MODULE, .read_raw = rpr0521_read_raw, .write_raw = rpr0521_write_raw, .attrs = &rpr0521_attribute_group, diff --git a/drivers/iio/light/si1145.c b/drivers/iio/light/si1145.c index 096034c126a4..76f16f9c7616 100644 --- a/drivers/iio/light/si1145.c +++ b/drivers/iio/light/si1145.c @@ -989,14 +989,12 @@ static const struct attribute_group si114x_attribute_group = { static const struct iio_info si1132_info = { .read_raw = si1145_read_raw, .write_raw = si1145_write_raw, - .driver_module = THIS_MODULE, .attrs = &si1132_attribute_group, }; static const struct iio_info si114x_info = { .read_raw = si1145_read_raw, .write_raw = si1145_write_raw, - .driver_module = THIS_MODULE, .attrs = &si114x_attribute_group, }; @@ -1237,7 +1235,6 @@ disable: } static const struct iio_trigger_ops si1145_trigger_ops = { - .owner = THIS_MODULE, .set_trigger_state = si1145_trigger_set_state, }; diff --git a/drivers/iio/light/stk3310.c b/drivers/iio/light/stk3310.c index 45cf8b0a4363..6e2a169da950 100644 --- a/drivers/iio/light/stk3310.c +++ b/drivers/iio/light/stk3310.c @@ -409,7 +409,6 @@ static int stk3310_write_raw(struct iio_dev *indio_dev, } static const struct iio_info stk3310_info = { - .driver_module = THIS_MODULE, .read_raw = stk3310_read_raw, .write_raw = stk3310_write_raw, .attrs = &stk3310_attribute_group, diff --git a/drivers/iio/light/tcs3414.c b/drivers/iio/light/tcs3414.c index a795afb7667b..205e5659ce6b 100644 --- a/drivers/iio/light/tcs3414.c +++ b/drivers/iio/light/tcs3414.c @@ -241,7 +241,6 @@ static const struct iio_info tcs3414_info = { .read_raw = tcs3414_read_raw, .write_raw = tcs3414_write_raw, .attrs = &tcs3414_attribute_group, - .driver_module = THIS_MODULE, }; static int tcs3414_buffer_preenable(struct iio_dev *indio_dev) diff --git a/drivers/iio/light/tcs3472.c b/drivers/iio/light/tcs3472.c index 09e6ca5e332e..e7923b514d7a 100644 --- a/drivers/iio/light/tcs3472.c +++ b/drivers/iio/light/tcs3472.c @@ -13,7 +13,7 @@ * * Datasheet: http://ams.com/eng/content/download/319364/1117183/file/TCS3472_Datasheet_EN_v2.pdf * - * TODO: interrupt support, thresholds, wait time + * TODO: wait time */ #include <linux/module.h> @@ -23,6 +23,7 @@ #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> +#include <linux/iio/events.h> #include <linux/iio/trigger_consumer.h> #include <linux/iio/buffer.h> #include <linux/iio/triggered_buffer.h> @@ -31,12 +32,15 @@ #define TCS3472_COMMAND BIT(7) #define TCS3472_AUTO_INCR BIT(5) +#define TCS3472_SPECIAL_FUNC (BIT(5) | BIT(6)) + +#define TCS3472_INTR_CLEAR (TCS3472_COMMAND | TCS3472_SPECIAL_FUNC | 0x06) #define TCS3472_ENABLE (TCS3472_COMMAND | 0x00) #define TCS3472_ATIME (TCS3472_COMMAND | 0x01) #define TCS3472_WTIME (TCS3472_COMMAND | 0x03) -#define TCS3472_AILT (TCS3472_COMMAND | 0x04) -#define TCS3472_AIHT (TCS3472_COMMAND | 0x06) +#define TCS3472_AILT (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x04) +#define TCS3472_AIHT (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x06) #define TCS3472_PERS (TCS3472_COMMAND | 0x0c) #define TCS3472_CONFIG (TCS3472_COMMAND | 0x0d) #define TCS3472_CONTROL (TCS3472_COMMAND | 0x0f) @@ -47,19 +51,42 @@ #define TCS3472_GDATA (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x18) #define TCS3472_BDATA (TCS3472_COMMAND | TCS3472_AUTO_INCR | 0x1a) +#define TCS3472_STATUS_AINT BIT(4) #define TCS3472_STATUS_AVALID BIT(0) +#define TCS3472_ENABLE_AIEN BIT(4) #define TCS3472_ENABLE_AEN BIT(1) #define TCS3472_ENABLE_PON BIT(0) #define TCS3472_CONTROL_AGAIN_MASK (BIT(0) | BIT(1)) struct tcs3472_data { struct i2c_client *client; + struct mutex lock; + u16 low_thresh; + u16 high_thresh; u8 enable; u8 control; u8 atime; + u8 apers; u16 buffer[8]; /* 4 16-bit channels + 64-bit timestamp */ }; +static const struct iio_event_spec tcs3472_events[] = { + { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_RISING, + .mask_separate = BIT(IIO_EV_INFO_VALUE), + }, { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_FALLING, + .mask_separate = BIT(IIO_EV_INFO_VALUE), + }, { + .type = IIO_EV_TYPE_THRESH, + .dir = IIO_EV_DIR_EITHER, + .mask_separate = BIT(IIO_EV_INFO_ENABLE) | + BIT(IIO_EV_INFO_PERIOD), + }, +}; + #define TCS3472_CHANNEL(_color, _si, _addr) { \ .type = IIO_INTENSITY, \ .modified = 1, \ @@ -75,6 +102,8 @@ struct tcs3472_data { .storagebits = 16, \ .endianness = IIO_CPU, \ }, \ + .event_spec = _si ? NULL : tcs3472_events, \ + .num_event_specs = _si ? 0 : ARRAY_SIZE(tcs3472_events), \ } static const int tcs3472_agains[] = { 1, 4, 16, 60 }; @@ -182,6 +211,166 @@ static int tcs3472_write_raw(struct iio_dev *indio_dev, return -EINVAL; } +/* + * Translation from APERS field value to the number of consecutive out-of-range + * clear channel values before an interrupt is generated + */ +static const int tcs3472_intr_pers[] = { + 0, 1, 2, 3, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60 +}; + +static int tcs3472_read_event(struct iio_dev *indio_dev, + const struct iio_chan_spec *chan, enum iio_event_type type, + enum iio_event_direction dir, enum iio_event_info info, int *val, + int *val2) +{ + struct tcs3472_data *data = iio_priv(indio_dev); + int ret; + unsigned int period; + + mutex_lock(&data->lock); + + switch (info) { + case IIO_EV_INFO_VALUE: + *val = (dir == IIO_EV_DIR_RISING) ? + data->high_thresh : data->low_thresh; + ret = IIO_VAL_INT; + break; + case IIO_EV_INFO_PERIOD: + period = (256 - data->atime) * 2400 * + tcs3472_intr_pers[data->apers]; + *val = period / USEC_PER_SEC; + *val2 = period % USEC_PER_SEC; + ret = IIO_VAL_INT_PLUS_MICRO; + break; + default: + ret = -EINVAL; + break; + } + + mutex_unlock(&data->lock); + + return ret; +} + +static int tcs3472_write_event(struct iio_dev *indio_dev, + const struct iio_chan_spec *chan, enum iio_event_type type, + enum iio_event_direction dir, enum iio_event_info info, int val, + int val2) +{ + struct tcs3472_data *data = iio_priv(indio_dev); + int ret; + u8 command; + int period; + int i; + + mutex_lock(&data->lock); + switch (info) { + case IIO_EV_INFO_VALUE: + switch (dir) { + case IIO_EV_DIR_RISING: + command = TCS3472_AIHT; + break; + case IIO_EV_DIR_FALLING: + command = TCS3472_AILT; + break; + default: + ret = -EINVAL; + goto error; + } + ret = i2c_smbus_write_word_data(data->client, command, val); + if (ret) + goto error; + + if (dir == IIO_EV_DIR_RISING) + data->high_thresh = val; + else + data->low_thresh = val; + break; + case IIO_EV_INFO_PERIOD: + period = val * USEC_PER_SEC + val2; + for (i = 1; i < ARRAY_SIZE(tcs3472_intr_pers) - 1; i++) { + if (period <= (256 - data->atime) * 2400 * + tcs3472_intr_pers[i]) + break; + } + ret = i2c_smbus_write_byte_data(data->client, TCS3472_PERS, i); + if (ret) + goto error; + + data->apers = i; + break; + default: + ret = -EINVAL; + break; + } +error: + mutex_unlock(&data->lock); + + return ret; +} + +static int tcs3472_read_event_config(struct iio_dev *indio_dev, + const struct iio_chan_spec *chan, enum iio_event_type type, + enum iio_event_direction dir) +{ + struct tcs3472_data *data = iio_priv(indio_dev); + int ret; + + mutex_lock(&data->lock); + ret = !!(data->enable & TCS3472_ENABLE_AIEN); + mutex_unlock(&data->lock); + + return ret; +} + +static int tcs3472_write_event_config(struct iio_dev *indio_dev, + const struct iio_chan_spec *chan, enum iio_event_type type, + enum iio_event_direction dir, int state) +{ + struct tcs3472_data *data = iio_priv(indio_dev); + int ret = 0; + u8 enable_old; + + mutex_lock(&data->lock); + + enable_old = data->enable; + + if (state) + data->enable |= TCS3472_ENABLE_AIEN; + else + data->enable &= ~TCS3472_ENABLE_AIEN; + + if (enable_old != data->enable) { + ret = i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE, + data->enable); + if (ret) + data->enable = enable_old; + } + mutex_unlock(&data->lock); + + return ret; +} + +static irqreturn_t tcs3472_event_handler(int irq, void *priv) +{ + struct iio_dev *indio_dev = priv; + struct tcs3472_data *data = iio_priv(indio_dev); + int ret; + + ret = i2c_smbus_read_byte_data(data->client, TCS3472_STATUS); + if (ret >= 0 && (ret & TCS3472_STATUS_AINT)) { + iio_push_event(indio_dev, IIO_UNMOD_EVENT_CODE(IIO_INTENSITY, 0, + IIO_EV_TYPE_THRESH, + IIO_EV_DIR_EITHER), + iio_get_time_ns(indio_dev)); + + i2c_smbus_read_byte_data(data->client, TCS3472_INTR_CLEAR); + } + + return IRQ_HANDLED; +} + static irqreturn_t tcs3472_trigger_handler(int irq, void *p) { struct iio_poll_func *pf = p; @@ -245,8 +434,11 @@ static const struct attribute_group tcs3472_attribute_group = { static const struct iio_info tcs3472_info = { .read_raw = tcs3472_read_raw, .write_raw = tcs3472_write_raw, + .read_event_value = tcs3472_read_event, + .write_event_value = tcs3472_write_event, + .read_event_config = tcs3472_read_event_config, + .write_event_config = tcs3472_write_event_config, .attrs = &tcs3472_attribute_group, - .driver_module = THIS_MODULE, }; static int tcs3472_probe(struct i2c_client *client, @@ -263,6 +455,7 @@ static int tcs3472_probe(struct i2c_client *client, data = iio_priv(indio_dev); i2c_set_clientdata(client, indio_dev); data->client = client; + mutex_init(&data->lock); indio_dev->dev.parent = &client->dev; indio_dev->info = &tcs3472_info; @@ -292,12 +485,29 @@ static int tcs3472_probe(struct i2c_client *client, return ret; data->atime = ret; + ret = i2c_smbus_read_word_data(data->client, TCS3472_AILT); + if (ret < 0) + return ret; + data->low_thresh = ret; + + ret = i2c_smbus_read_word_data(data->client, TCS3472_AIHT); + if (ret < 0) + return ret; + data->high_thresh = ret; + + data->apers = 1; + ret = i2c_smbus_write_byte_data(data->client, TCS3472_PERS, + data->apers); + if (ret < 0) + return ret; + ret = i2c_smbus_read_byte_data(data->client, TCS3472_ENABLE); if (ret < 0) return ret; /* enable device */ data->enable = ret | TCS3472_ENABLE_PON | TCS3472_ENABLE_AEN; + data->enable &= ~TCS3472_ENABLE_AIEN; ret = i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE, data->enable); if (ret < 0) @@ -308,12 +518,24 @@ static int tcs3472_probe(struct i2c_client *client, if (ret < 0) return ret; + if (client->irq) { + ret = request_threaded_irq(client->irq, NULL, + tcs3472_event_handler, + IRQF_TRIGGER_FALLING | IRQF_SHARED | + IRQF_ONESHOT, + client->name, indio_dev); + if (ret) + goto buffer_cleanup; + } + ret = iio_device_register(indio_dev); if (ret < 0) - goto buffer_cleanup; + goto free_irq; return 0; +free_irq: + free_irq(client->irq, indio_dev); buffer_cleanup: iio_triggered_buffer_cleanup(indio_dev); return ret; @@ -321,8 +543,19 @@ buffer_cleanup: static int tcs3472_powerdown(struct tcs3472_data *data) { - return i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE, - data->enable & ~(TCS3472_ENABLE_AEN | TCS3472_ENABLE_PON)); + int ret; + u8 enable_mask = TCS3472_ENABLE_AEN | TCS3472_ENABLE_PON; + + mutex_lock(&data->lock); + + ret = i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE, + data->enable & ~enable_mask); + if (!ret) + data->enable &= ~enable_mask; + + mutex_unlock(&data->lock); + + return ret; } static int tcs3472_remove(struct i2c_client *client) @@ -330,6 +563,7 @@ static int tcs3472_remove(struct i2c_client *client) struct iio_dev *indio_dev = i2c_get_clientdata(client); iio_device_unregister(indio_dev); + free_irq(client->irq, indio_dev); iio_triggered_buffer_cleanup(indio_dev); tcs3472_powerdown(iio_priv(indio_dev)); @@ -348,8 +582,19 @@ static int tcs3472_resume(struct device *dev) { struct tcs3472_data *data = iio_priv(i2c_get_clientdata( to_i2c_client(dev))); - return i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE, - data->enable | (TCS3472_ENABLE_AEN | TCS3472_ENABLE_PON)); + int ret; + u8 enable_mask = TCS3472_ENABLE_AEN | TCS3472_ENABLE_PON; + + mutex_lock(&data->lock); + + ret = i2c_smbus_write_byte_data(data->client, TCS3472_ENABLE, + data->enable | enable_mask); + if (!ret) + data->enable |= enable_mask; + + mutex_unlock(&data->lock); + + return ret; } #endif diff --git a/drivers/iio/light/tsl2563.c b/drivers/iio/light/tsl2563.c index 7599693f7fe9..6bbb0b1e6032 100644 --- a/drivers/iio/light/tsl2563.c +++ b/drivers/iio/light/tsl2563.c @@ -697,13 +697,11 @@ static int tsl2563_read_interrupt_config(struct iio_dev *indio_dev, } static const struct iio_info tsl2563_info_no_irq = { - .driver_module = THIS_MODULE, .read_raw = &tsl2563_read_raw, .write_raw = &tsl2563_write_raw, }; static const struct iio_info tsl2563_info = { - .driver_module = THIS_MODULE, .read_raw = &tsl2563_read_raw, .write_raw = &tsl2563_write_raw, .read_event_value = &tsl2563_read_thresh, diff --git a/drivers/iio/light/tsl2583.c b/drivers/iio/light/tsl2583.c index fb711ed4862e..f2e50edaa242 100644 --- a/drivers/iio/light/tsl2583.c +++ b/drivers/iio/light/tsl2583.c @@ -804,7 +804,6 @@ static int tsl2583_write_raw(struct iio_dev *indio_dev, static const struct iio_info tsl2583_info = { .attrs = &tsl2583_attribute_group, - .driver_module = THIS_MODULE, .read_raw = tsl2583_read_raw, .write_raw = tsl2583_write_raw, }; diff --git a/drivers/iio/light/tsl4531.c b/drivers/iio/light/tsl4531.c index cf94ec72b181..06171cb76e23 100644 --- a/drivers/iio/light/tsl4531.c +++ b/drivers/iio/light/tsl4531.c @@ -144,7 +144,6 @@ static const struct iio_info tsl4531_info = { .read_raw = tsl4531_read_raw, .write_raw = tsl4531_write_raw, .attrs = &tsl4531_attribute_group, - .driver_module = THIS_MODULE, }; static int tsl4531_check_id(struct i2c_client *client) diff --git a/drivers/iio/light/us5182d.c b/drivers/iio/light/us5182d.c index d571ad7291ed..68e52943879a 100644 --- a/drivers/iio/light/us5182d.c +++ b/drivers/iio/light/us5182d.c @@ -714,7 +714,6 @@ err: } static const struct iio_info us5182d_info = { - .driver_module = THIS_MODULE, .read_raw = us5182d_read_raw, .write_raw = us5182d_write_raw, .attrs = &us5182d_attr_group, diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c index 360b6e98137a..c599a90506ad 100644 --- a/drivers/iio/light/vcnl4000.c +++ b/drivers/iio/light/vcnl4000.c @@ -155,7 +155,6 @@ static int vcnl4000_read_raw(struct iio_dev *indio_dev, static const struct iio_info vcnl4000_info = { .read_raw = vcnl4000_read_raw, - .driver_module = THIS_MODULE, }; static int vcnl4000_probe(struct i2c_client *client, diff --git a/drivers/iio/light/veml6070.c b/drivers/iio/light/veml6070.c index bc1c4cb782cd..f4bf3c5b5eda 100644 --- a/drivers/iio/light/veml6070.c +++ b/drivers/iio/light/veml6070.c @@ -136,7 +136,6 @@ static int veml6070_read_raw(struct iio_dev *indio_dev, static const struct iio_info veml6070_info = { .read_raw = veml6070_read_raw, - .driver_module = THIS_MODULE, }; static int veml6070_probe(struct i2c_client *client, diff --git a/drivers/iio/light/vl6180.c b/drivers/iio/light/vl6180.c index 6e25b724d941..192c77ef3608 100644 --- a/drivers/iio/light/vl6180.c +++ b/drivers/iio/light/vl6180.c @@ -24,6 +24,7 @@ #include <linux/err.h> #include <linux/of.h> #include <linux/delay.h> +#include <linux/util_macros.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> @@ -86,6 +87,8 @@ struct vl6180_data { struct i2c_client *client; struct mutex lock; + unsigned int als_gain_milli; + unsigned int als_it_ms; }; enum { VL6180_ALS, VL6180_RANGE, VL6180_PROX }; @@ -275,19 +278,17 @@ static const struct iio_chan_spec vl6180_channels[] = { }; /* - * Columns 3 & 4 represent the same value in decimal and hex notations. - * Kept in order to avoid the datatype conversion while reading the - * hardware_gain. + * Available Ambient Light Sensor gain settings, 1/1000th, and + * corresponding setting for the VL6180_ALS_GAIN register */ -static const int vl6180_als_gain[8][4] = { - { 1, 0, 70, VL6180_ALS_GAIN_1 }, - { 1, 250000, 69, VL6180_ALS_GAIN_1_25 }, - { 1, 670000, 68, VL6180_ALS_GAIN_1_67 }, - { 2, 500000, 67, VL6180_ALS_GAIN_2_5 }, - { 5, 0, 66, VL6180_ALS_GAIN_5 }, - { 10, 0, 65, VL6180_ALS_GAIN_10 }, - { 20, 0, 64, VL6180_ALS_GAIN_20 }, - { 40, 0, 71, VL6180_ALS_GAIN_40 } +static const int vl6180_als_gain_tab[8] = { + 1000, 1250, 1670, 2500, 5000, 10000, 20000, 40000 +}; +static const u8 vl6180_als_gain_tab_bits[8] = { + VL6180_ALS_GAIN_1, VL6180_ALS_GAIN_1_25, + VL6180_ALS_GAIN_1_67, VL6180_ALS_GAIN_2_5, + VL6180_ALS_GAIN_5, VL6180_ALS_GAIN_10, + VL6180_ALS_GAIN_20, VL6180_ALS_GAIN_40 }; static int vl6180_read_raw(struct iio_dev *indio_dev, @@ -295,7 +296,7 @@ static int vl6180_read_raw(struct iio_dev *indio_dev, int *val, int *val2, long mask) { struct vl6180_data *data = iio_priv(indio_dev); - int ret, i; + int ret; switch (mask) { case IIO_CHAN_INFO_RAW: @@ -306,19 +307,20 @@ static int vl6180_read_raw(struct iio_dev *indio_dev, return IIO_VAL_INT; case IIO_CHAN_INFO_INT_TIME: - ret = vl6180_read_word(data->client, VL6180_ALS_IT); - if (ret < 0) - return ret; - *val = 0; /* 1 count = 1ms (0 = 1ms) */ - *val2 = (ret + 1) * 1000; /* convert to seconds */ + *val = data->als_it_ms; + *val2 = 1000; + + return IIO_VAL_FRACTIONAL; - return IIO_VAL_INT_PLUS_MICRO; case IIO_CHAN_INFO_SCALE: switch (chan->type) { case IIO_LIGHT: - *val = 0; /* one ALS count is 0.32 Lux */ - *val2 = 320000; - break; + /* one ALS count is 0.32 Lux @ gain 1, IT 100 ms */ + *val = 32000; /* 0.32 * 1000 * 100 */ + *val2 = data->als_gain_milli * data->als_it_ms; + + return IIO_VAL_FRACTIONAL; + case IIO_DISTANCE: *val = 0; /* sensor reports mm, scale to meter */ *val2 = 1000; @@ -329,17 +331,11 @@ static int vl6180_read_raw(struct iio_dev *indio_dev, return IIO_VAL_INT_PLUS_MICRO; case IIO_CHAN_INFO_HARDWAREGAIN: - ret = vl6180_read_byte(data->client, VL6180_ALS_GAIN); - if (ret < 0) - return -EINVAL; - for (i = 0; i < ARRAY_SIZE(vl6180_als_gain); i++) { - if (ret == vl6180_als_gain[i][2]) { - *val = vl6180_als_gain[i][0]; - *val2 = vl6180_als_gain[i][1]; - } - } + *val = data->als_gain_milli; + *val2 = 1000; + + return IIO_VAL_FRACTIONAL; - return IIO_VAL_INT_PLUS_MICRO; default: return -EINVAL; } @@ -365,37 +361,53 @@ static int vl6180_hold(struct vl6180_data *data, bool hold) static int vl6180_set_als_gain(struct vl6180_data *data, int val, int val2) { - int i, ret; - - for (i = 0; i < ARRAY_SIZE(vl6180_als_gain); i++) { - if (val == vl6180_als_gain[i][0] && - val2 == vl6180_als_gain[i][1]) { - mutex_lock(&data->lock); - ret = vl6180_hold(data, true); - if (ret < 0) - goto fail; - ret = vl6180_write_byte(data->client, VL6180_ALS_GAIN, - vl6180_als_gain[i][3]); -fail: - vl6180_hold(data, false); - mutex_unlock(&data->lock); - return ret; - } - } + int i, ret, gain; - return -EINVAL; + if (val < 1 || val > 40) + return -EINVAL; + + gain = (val * 1000000 + val2) / 1000; + if (gain < 1 || gain > 40000) + return -EINVAL; + + i = find_closest(gain, vl6180_als_gain_tab, + ARRAY_SIZE(vl6180_als_gain_tab)); + + mutex_lock(&data->lock); + ret = vl6180_hold(data, true); + if (ret < 0) + goto fail; + + ret = vl6180_write_byte(data->client, VL6180_ALS_GAIN, + vl6180_als_gain_tab_bits[i]); + + if (ret >= 0) + data->als_gain_milli = vl6180_als_gain_tab[i]; + +fail: + vl6180_hold(data, false); + mutex_unlock(&data->lock); + return ret; } -static int vl6180_set_it(struct vl6180_data *data, int val2) +static int vl6180_set_it(struct vl6180_data *data, int val, int val2) { - int ret; + int ret, it_ms; + + it_ms = (val2 + 500) / 1000; /* round to ms */ + if (val != 0 || it_ms < 1 || it_ms > 512) + return -EINVAL; mutex_lock(&data->lock); ret = vl6180_hold(data, true); if (ret < 0) goto fail; - ret = vl6180_write_word(data->client, VL6180_ALS_IT, - (val2 - 500) / 1000); /* write value in ms */ + + ret = vl6180_write_word(data->client, VL6180_ALS_IT, it_ms - 1); + + if (ret >= 0) + data->als_it_ms = it_ms; + fail: vl6180_hold(data, false); mutex_unlock(&data->lock); @@ -411,10 +423,8 @@ static int vl6180_write_raw(struct iio_dev *indio_dev, switch (mask) { case IIO_CHAN_INFO_INT_TIME: - if (val != 0 || val2 < 500 || val2 >= 512500) - return -EINVAL; + return vl6180_set_it(data, val, val2); - return vl6180_set_it(data, val2); case IIO_CHAN_INFO_HARDWAREGAIN: if (chan->type != IIO_LIGHT) return -EINVAL; @@ -429,7 +439,6 @@ static const struct iio_info vl6180_info = { .read_raw = vl6180_read_raw, .write_raw = vl6180_write_raw, .attrs = &vl6180_attribute_group, - .driver_module = THIS_MODULE, }; static int vl6180_init(struct vl6180_data *data) @@ -468,11 +477,13 @@ static int vl6180_init(struct vl6180_data *data) return ret; /* ALS integration time: 100ms */ + data->als_it_ms = 100; ret = vl6180_write_word(client, VL6180_ALS_IT, VL6180_ALS_IT_100); if (ret < 0) return ret; /* ALS gain: 1 */ + data->als_gain_milli = 1000; ret = vl6180_write_byte(client, VL6180_ALS_GAIN, VL6180_ALS_GAIN_1); if (ret < 0) return ret; |