diff options
Diffstat (limited to 'drivers/iio/light')
| -rw-r--r-- | drivers/iio/light/Kconfig | 12 | ||||
| -rw-r--r-- | drivers/iio/light/Makefile | 1 | ||||
| -rw-r--r-- | drivers/iio/light/cm3232.c | 36 | ||||
| -rw-r--r-- | drivers/iio/light/cm3323.c | 286 | ||||
| -rw-r--r-- | drivers/iio/light/gp2ap020a00f.c | 6 | ||||
| -rw-r--r-- | drivers/iio/light/hid-sensor-als.c | 3 | ||||
| -rw-r--r-- | drivers/iio/light/hid-sensor-prox.c | 3 | ||||
| -rw-r--r-- | drivers/iio/light/jsa1212.c | 2 | ||||
| -rw-r--r-- | drivers/iio/light/ltr501.c | 18 |
9 files changed, 353 insertions, 14 deletions
diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig index ae68c64bdad3..01a1a16ab7be 100644 --- a/drivers/iio/light/Kconfig +++ b/drivers/iio/light/Kconfig @@ -59,6 +59,16 @@ config CM3232 To compile this driver as a module, choose M here: the module will be called cm3232. +config CM3323 + depends on I2C + tristate "Capella CM3323 color light sensor" + help + Say Y here if you want to build a driver for Capela CM3323 + color sensor. + + To compile this driver as a module, choose M here: the module will + be called cm3323. + config CM36651 depends on I2C tristate "CM36651 driver" @@ -73,6 +83,7 @@ config CM36651 config GP2AP020A00F tristate "Sharp GP2AP020A00F Proximity/ALS sensor" depends on I2C + select REGMAP_I2C select IIO_BUFFER select IIO_TRIGGERED_BUFFER select IRQ_WORK @@ -126,6 +137,7 @@ config HID_SENSOR_PROX config JSA1212 tristate "JSA1212 ALS and proximity sensor driver" depends on I2C + select REGMAP_I2C help Say Y here if you want to build a IIO driver for JSA1212 proximity & ALS sensor device. diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile index b12a5160d9e0..ad7c30fe443b 100644 --- a/drivers/iio/light/Makefile +++ b/drivers/iio/light/Makefile @@ -8,6 +8,7 @@ obj-$(CONFIG_AL3320A) += al3320a.o obj-$(CONFIG_APDS9300) += apds9300.o obj-$(CONFIG_CM32181) += cm32181.o obj-$(CONFIG_CM3232) += cm3232.o +obj-$(CONFIG_CM3323) += cm3323.o obj-$(CONFIG_CM36651) += cm36651.o obj-$(CONFIG_GP2AP020A00F) += gp2ap020a00f.o obj-$(CONFIG_HID_SENSOR_ALS) += hid-sensor-als.o diff --git a/drivers/iio/light/cm3232.c b/drivers/iio/light/cm3232.c index 90e3519a91de..39c8d99cc48e 100644 --- a/drivers/iio/light/cm3232.c +++ b/drivers/iio/light/cm3232.c @@ -378,6 +378,39 @@ static const struct i2c_device_id cm3232_id[] = { {} }; +#ifdef CONFIG_PM_SLEEP +static int cm3232_suspend(struct device *dev) +{ + struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); + struct cm3232_chip *chip = iio_priv(indio_dev); + struct i2c_client *client = chip->client; + int ret; + + chip->regs_cmd |= CM3232_CMD_ALS_DISABLE; + ret = i2c_smbus_write_byte_data(client, CM3232_REG_ADDR_CMD, + chip->regs_cmd); + + return ret; +} + +static int cm3232_resume(struct device *dev) +{ + struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev)); + struct cm3232_chip *chip = iio_priv(indio_dev); + struct i2c_client *client = chip->client; + int ret; + + chip->regs_cmd &= ~CM3232_CMD_ALS_DISABLE; + ret = i2c_smbus_write_byte_data(client, CM3232_REG_ADDR_CMD, + chip->regs_cmd | CM3232_CMD_ALS_RESET); + + return ret; +} + +static const struct dev_pm_ops cm3232_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(cm3232_suspend, cm3232_resume)}; +#endif + MODULE_DEVICE_TABLE(i2c, cm3232_id); static const struct of_device_id cm3232_of_match[] = { @@ -390,6 +423,9 @@ static struct i2c_driver cm3232_driver = { .name = "cm3232", .owner = THIS_MODULE, .of_match_table = of_match_ptr(cm3232_of_match), +#ifdef CONFIG_PM_SLEEP + .pm = &cm3232_pm_ops, +#endif }, .id_table = cm3232_id, .probe = cm3232_probe, diff --git a/drivers/iio/light/cm3323.c b/drivers/iio/light/cm3323.c new file mode 100644 index 000000000000..869033e48a1f --- /dev/null +++ b/drivers/iio/light/cm3323.c @@ -0,0 +1,286 @@ +/* + * CM3323 - Capella Color Light Sensor + * + * Copyright (c) 2015, Intel Corporation. + * + * This file is subject to the terms and conditions of version 2 of + * the GNU General Public License. See the file COPYING in the main + * directory of this archive for more details. + * + * IIO driver for CM3323 (7-bit I2C slave address 0x10) + * + * TODO: calibscale to correct the lens factor + */ +#include <linux/module.h> +#include <linux/init.h> +#include <linux/i2c.h> +#include <linux/mutex.h> + +#include <linux/iio/iio.h> +#include <linux/iio/sysfs.h> + +#define CM3323_DRV_NAME "cm3323" + +#define CM3323_CMD_CONF 0x00 +#define CM3323_CMD_RED_DATA 0x08 +#define CM3323_CMD_GREEN_DATA 0x09 +#define CM3323_CMD_BLUE_DATA 0x0A +#define CM3323_CMD_CLEAR_DATA 0x0B + +#define CM3323_CONF_SD_BIT BIT(0) /* sensor disable */ +#define CM3323_CONF_AF_BIT BIT(1) /* auto/manual force mode */ +#define CM3323_CONF_IT_MASK (BIT(4) | BIT(5) | BIT(6)) +#define CM3323_CONF_IT_SHIFT 4 + +#define CM3323_INT_TIME_AVAILABLE "0.04 0.08 0.16 0.32 0.64 1.28" + +static const struct { + int val; + int val2; +} cm3323_int_time[] = { + {0, 40000}, /* 40 ms */ + {0, 80000}, /* 80 ms */ + {0, 160000}, /* 160 ms */ + {0, 320000}, /* 320 ms */ + {0, 640000}, /* 640 ms */ + {1, 280000}, /* 1280 ms */ +}; + +struct cm3323_data { + struct i2c_client *client; + u16 reg_conf; + struct mutex mutex; +}; + +#define CM3323_COLOR_CHANNEL(_color, _addr) { \ + .type = IIO_INTENSITY, \ + .modified = 1, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ + .info_mask_shared_by_all = BIT(IIO_CHAN_INFO_INT_TIME), \ + .channel2 = IIO_MOD_LIGHT_##_color, \ + .address = _addr, \ +} + +static const struct iio_chan_spec cm3323_channels[] = { + CM3323_COLOR_CHANNEL(RED, CM3323_CMD_RED_DATA), + CM3323_COLOR_CHANNEL(GREEN, CM3323_CMD_GREEN_DATA), + CM3323_COLOR_CHANNEL(BLUE, CM3323_CMD_BLUE_DATA), + CM3323_COLOR_CHANNEL(CLEAR, CM3323_CMD_CLEAR_DATA), +}; + +static IIO_CONST_ATTR_INT_TIME_AVAIL(CM3323_INT_TIME_AVAILABLE); + +static struct attribute *cm3323_attributes[] = { + &iio_const_attr_integration_time_available.dev_attr.attr, + NULL +}; + +static const struct attribute_group cm3323_attribute_group = { + .attrs = cm3323_attributes, +}; + +static int cm3323_init(struct iio_dev *indio_dev) +{ + int ret; + struct cm3323_data *data = iio_priv(indio_dev); + + ret = i2c_smbus_read_word_data(data->client, CM3323_CMD_CONF); + if (ret < 0) { + dev_err(&data->client->dev, "Error reading reg_conf\n"); + return ret; + } + + /* enable sensor and set auto force mode */ + ret &= ~(CM3323_CONF_SD_BIT | CM3323_CONF_AF_BIT); + + ret = i2c_smbus_write_word_data(data->client, CM3323_CMD_CONF, ret); + if (ret < 0) { + dev_err(&data->client->dev, "Error writing reg_conf\n"); + return ret; + } + + data->reg_conf = ret; + + return 0; +} + +static void cm3323_disable(struct iio_dev *indio_dev) +{ + int ret; + struct cm3323_data *data = iio_priv(indio_dev); + + ret = i2c_smbus_write_word_data(data->client, CM3323_CMD_CONF, + CM3323_CONF_SD_BIT); + if (ret < 0) + dev_err(&data->client->dev, "Error writing reg_conf\n"); +} + +static int cm3323_set_it_bits(struct cm3323_data *data, int val, int val2) +{ + int i, ret; + u16 reg_conf; + + for (i = 0; i < ARRAY_SIZE(cm3323_int_time); i++) { + if (val == cm3323_int_time[i].val && + val2 == cm3323_int_time[i].val2) { + reg_conf = data->reg_conf; + reg_conf |= i << CM3323_CONF_IT_SHIFT; + + ret = i2c_smbus_write_word_data(data->client, + CM3323_CMD_CONF, + reg_conf); + if (ret < 0) + return ret; + + data->reg_conf = reg_conf; + return 0; + } + } + return -EINVAL; +} + +static int cm3323_get_it_bits(struct cm3323_data *data) +{ + int bits; + + bits = (data->reg_conf & CM3323_CONF_IT_MASK) >> + CM3323_CONF_IT_SHIFT; + + if (bits >= ARRAY_SIZE(cm3323_int_time)) + return -EINVAL; + return bits; +} + +static int cm3323_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, int *val, + int *val2, long mask) +{ + int i, ret; + struct cm3323_data *data = iio_priv(indio_dev); + + switch (mask) { + case IIO_CHAN_INFO_RAW: + mutex_lock(&data->mutex); + ret = i2c_smbus_read_word_data(data->client, chan->address); + if (ret < 0) { + mutex_unlock(&data->mutex); + return ret; + } + *val = ret; + mutex_unlock(&data->mutex); + + return IIO_VAL_INT; + case IIO_CHAN_INFO_INT_TIME: + mutex_lock(&data->mutex); + i = cm3323_get_it_bits(data); + if (i < 0) { + mutex_unlock(&data->mutex); + return -EINVAL; + } + + *val = cm3323_int_time[i].val; + *val2 = cm3323_int_time[i].val2; + mutex_unlock(&data->mutex); + + return IIO_VAL_INT_PLUS_MICRO; + default: + return -EINVAL; + } +} + +static int cm3323_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, int val, + int val2, long mask) +{ + struct cm3323_data *data = iio_priv(indio_dev); + int ret; + + switch (mask) { + case IIO_CHAN_INFO_INT_TIME: + mutex_lock(&data->mutex); + ret = cm3323_set_it_bits(data, val, val2); + mutex_unlock(&data->mutex); + + return ret; + default: + return -EINVAL; + } +} + +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, +}; + +static int cm3323_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct cm3323_data *data; + struct iio_dev *indio_dev; + int ret; + + indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data)); + if (!indio_dev) + return -ENOMEM; + + data = iio_priv(indio_dev); + i2c_set_clientdata(client, indio_dev); + data->client = client; + + mutex_init(&data->mutex); + + indio_dev->dev.parent = &client->dev; + indio_dev->info = &cm3323_info; + indio_dev->name = CM3323_DRV_NAME; + indio_dev->channels = cm3323_channels; + indio_dev->num_channels = ARRAY_SIZE(cm3323_channels); + indio_dev->modes = INDIO_DIRECT_MODE; + + ret = cm3323_init(indio_dev); + if (ret < 0) { + dev_err(&client->dev, "cm3323 chip init failed\n"); + return ret; + } + ret = iio_device_register(indio_dev); + if (ret < 0) { + dev_err(&client->dev, "failed to register iio dev\n"); + goto err_init; + } + return 0; +err_init: + cm3323_disable(indio_dev); + return ret; +} + +static int cm3323_remove(struct i2c_client *client) +{ + struct iio_dev *indio_dev = i2c_get_clientdata(client); + + iio_device_unregister(indio_dev); + cm3323_disable(indio_dev); + + return 0; +} + +static const struct i2c_device_id cm3323_id[] = { + {"cm3323", 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, cm3323_id); + +static struct i2c_driver cm3323_driver = { + .driver = { + .name = CM3323_DRV_NAME, + }, + .probe = cm3323_probe, + .remove = cm3323_remove, + .id_table = cm3323_id, +}; + +module_i2c_driver(cm3323_driver); + +MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com>"); +MODULE_DESCRIPTION("Capella CM3323 Color Light Sensor driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/light/gp2ap020a00f.c b/drivers/iio/light/gp2ap020a00f.c index 221ed16de1f7..32b6449833fa 100644 --- a/drivers/iio/light/gp2ap020a00f.c +++ b/drivers/iio/light/gp2ap020a00f.c @@ -46,6 +46,7 @@ #include <linux/regmap.h> #include <linux/regulator/consumer.h> #include <linux/slab.h> +#include <asm/unaligned.h> #include <linux/iio/buffer.h> #include <linux/iio/events.h> #include <linux/iio/iio.h> @@ -966,7 +967,6 @@ static irqreturn_t gp2ap020a00f_trigger_handler(int irq, void *data) struct iio_dev *indio_dev = pf->indio_dev; struct gp2ap020a00f_data *priv = iio_priv(indio_dev); size_t d_size = 0; - __le32 light_lux; int i, out_val, ret; for_each_set_bit(i, indio_dev->active_scan_mask, @@ -981,8 +981,8 @@ static irqreturn_t gp2ap020a00f_trigger_handler(int irq, void *data) i == GP2AP020A00F_SCAN_MODE_LIGHT_IR) { out_val = le16_to_cpup((__le16 *)&priv->buffer[d_size]); gp2ap020a00f_output_to_lux(priv, &out_val); - light_lux = cpu_to_le32(out_val); - memcpy(&priv->buffer[d_size], (u8 *)&light_lux, 4); + + put_unaligned_le32(out_val, &priv->buffer[d_size]); d_size += 4; } else { d_size += 2; diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c index 948acfc38b8c..1609ecdd01b0 100644 --- a/drivers/iio/light/hid-sensor-als.c +++ b/drivers/iio/light/hid-sensor-als.c @@ -101,7 +101,8 @@ static int als_read_raw(struct iio_dev *indio_dev, *val = sensor_hub_input_attr_get_raw_value( als_state->common_attributes.hsdev, HID_USAGE_SENSOR_ALS, address, - report_id); + report_id, + SENSOR_HUB_SYNC); hid_sensor_power_state(&als_state->common_attributes, false); } else { diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c index 3ecf79ed08ac..91ecc46ffeaa 100644 --- a/drivers/iio/light/hid-sensor-prox.c +++ b/drivers/iio/light/hid-sensor-prox.c @@ -96,7 +96,8 @@ static int prox_read_raw(struct iio_dev *indio_dev, *val = sensor_hub_input_attr_get_raw_value( prox_state->common_attributes.hsdev, HID_USAGE_SENSOR_PROX, address, - report_id); + report_id, + SENSOR_HUB_SYNC); hid_sensor_power_state(&prox_state->common_attributes, false); } else { diff --git a/drivers/iio/light/jsa1212.c b/drivers/iio/light/jsa1212.c index 29de7e7d9562..3a3af89beaf9 100644 --- a/drivers/iio/light/jsa1212.c +++ b/drivers/iio/light/jsa1212.c @@ -308,7 +308,7 @@ static bool jsa1212_is_volatile_reg(struct device *dev, unsigned int reg) } } -static struct regmap_config jsa1212_regmap_config = { +static const struct regmap_config jsa1212_regmap_config = { .name = JSA1212_REGMAP_NAME, .reg_bits = 8, .val_bits = 8, diff --git a/drivers/iio/light/ltr501.c b/drivers/iio/light/ltr501.c index 62b7072af4de..78b87839c4b9 100644 --- a/drivers/iio/light/ltr501.c +++ b/drivers/iio/light/ltr501.c @@ -333,6 +333,13 @@ static int ltr501_init(struct ltr501_data *data) data->ps_contr); } +static int ltr501_powerdown(struct ltr501_data *data) +{ + return ltr501_write_contr(data->client, + data->als_contr & ~LTR501_CONTR_ACTIVE, + data->ps_contr & ~LTR501_CONTR_ACTIVE); +} + static int ltr501_probe(struct i2c_client *client, const struct i2c_device_id *id) { @@ -370,7 +377,7 @@ static int ltr501_probe(struct i2c_client *client, ret = iio_triggered_buffer_setup(indio_dev, NULL, ltr501_trigger_handler, NULL); if (ret) - return ret; + goto powerdown_on_error; ret = iio_device_register(indio_dev); if (ret) @@ -380,16 +387,11 @@ static int ltr501_probe(struct i2c_client *client, error_unreg_buffer: iio_triggered_buffer_cleanup(indio_dev); +powerdown_on_error: + ltr501_powerdown(data); return ret; } -static int ltr501_powerdown(struct ltr501_data *data) -{ - return ltr501_write_contr(data->client, - data->als_contr & ~LTR501_CONTR_ACTIVE, - data->ps_contr & ~LTR501_CONTR_ACTIVE); -} - static int ltr501_remove(struct i2c_client *client) { struct iio_dev *indio_dev = i2c_get_clientdata(client); |