Minimal implementation. This is based on the driver provided by the vendor (which wasn't in the IIO framework). Authors of the driver from the vendor included * John Huang <john.huang@xxxxxxxxxxxxxx> * Templeton Tsai <templeton.tsai@xxxxxxxxxxxxxx> * Vic Lee <Vic_Lee@xxxxxxxx> Signed-off-by: Suresh Rajashekara <sureshraj@xxxxxxxxxx> --- .../devicetree/bindings/iio/light/ap3223.txt | 18 + .../devicetree/bindings/vendor-prefixes.txt | 1 + drivers/iio/light/Kconfig | 10 + drivers/iio/light/Makefile | 1 + drivers/iio/light/ap3223.c | 394 +++++++++++++++++++++ drivers/iio/light/ap3223.h | 227 ++++++++++++ 6 files changed, 651 insertions(+) create mode 100644 Documentation/devicetree/bindings/iio/light/ap3223.txt create mode 100644 drivers/iio/light/ap3223.c create mode 100644 drivers/iio/light/ap3223.h diff --git a/Documentation/devicetree/bindings/iio/light/ap3223.txt b/Documentation/devicetree/bindings/iio/light/ap3223.txt new file mode 100644 index 0000000..b255d27 --- /dev/null +++ b/Documentation/devicetree/bindings/iio/light/ap3223.txt @@ -0,0 +1,18 @@ +* Dyna Image AP3223 ambient light sensor and proximity sensor + +http://www.dyna-image.com/english/product/optical-sensor-detail.php?cpid=2&dpid=8 + +Required properties: + + - compatible : should be "dynaimage,ap3223" + - reg : the I2C address of the sensor + +Example: + +ap3223@1c { + compatible = "dynaimage,ap3223"; + reg = <0x1c>; + + pinctrl-0 = <&ap3223_pins>; + pinctrl-names = "default"; +}; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 5f20add..704da45 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -46,6 +46,7 @@ digilent Diglent, Inc. dlg Dialog Semiconductor dlink D-Link Corporation dmo Data Modul AG +dynaimage Dyna-Image ebv EBV Elektronik edt Emerging Display Technologies elan Elan Microelectronic Corp. diff --git a/drivers/iio/light/Kconfig b/drivers/iio/light/Kconfig index ae68c64..5255aa2 100644 --- a/drivers/iio/light/Kconfig +++ b/drivers/iio/light/Kconfig @@ -27,6 +27,16 @@ config AL3320A To compile this driver as a module, choose M here: the module will be called al3320a. +config AP3223 + tristate "AP3223 ambient light and proximity sensor" + depends on I2C + help + Say Y here if you want to build a driver for the Dyna Image AP3223 + ambient light and proximity sensor. + + To compile this driver as a module, choose M here: the + module will be called ap3223. + config APDS9300 tristate "APDS9300 ambient light sensor" depends on I2C diff --git a/drivers/iio/light/Makefile b/drivers/iio/light/Makefile index b12a516..13a74f9 100644 --- a/drivers/iio/light/Makefile +++ b/drivers/iio/light/Makefile @@ -5,6 +5,7 @@ # When adding new entries keep the list in alphabetical order obj-$(CONFIG_ADJD_S311) += adjd_s311.o obj-$(CONFIG_AL3320A) += al3320a.o +obj-$(CONFIG_AP3223) += ap3223.o obj-$(CONFIG_APDS9300) += apds9300.o obj-$(CONFIG_CM32181) += cm32181.o obj-$(CONFIG_CM3232) += cm3232.o diff --git a/drivers/iio/light/ap3223.c b/drivers/iio/light/ap3223.c new file mode 100644 index 0000000..55bbcdd --- /dev/null +++ b/drivers/iio/light/ap3223.c @@ -0,0 +1,394 @@ +/* + * ap3223.c + * + * Copyright (C) 2015 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Note about the original authors: + * + * The driver for AP3223 was originally distributed by dyna image in a + * different framework. This driver uses code from that driver and converts + * it to iio framework. The non-iio driver from dyna image is not available + * online anywhere, so there is no reference for it here. However, that driver + * is also GPLv2. The following is part of the header found in that file + * (The GPL notice from the original header is removed) + * + * >> This file is part of the AP3223, AP3212C and AP3216C sensor driver. + * >> AP3426 is combined proximity and ambient light sensor. + * >> AP3216C is combined proximity, ambient light sensor and IRLED. + * >> + * >> Contact: John Huang <john.huang@xxxxxxxxxxxxxx> + * >> Templeton Tsai <templeton.tsai@xxxxxxxxxxxxxx> + * + * Another author initials mentioned in that file was just YC (and no name). + * + * Not sure for what kernel version the driver from dyna image was written for. + * Vic Lee <Vic_Lee@xxxxxxxx> made modifications to it to run on 3.14. + */ + +#include <linux/module.h> +#include <linux/init.h> +#include <linux/i2c.h> +#include <linux/iio/iio.h> +#include <linux/iio/sysfs.h> +#include <linux/mutex.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/of_gpio.h> +#include <linux/timer.h> +#include <linux/gpio.h> +#include <linux/device.h> + +#include "ap3223.h" + +#define AP3223_DRV_NAME "ap3223" + +struct ap3223_data { + struct i2c_client *client; + u8 reg_cache[AP3223_NUM_CACHABLE_REGS]; + int cali; +}; + +static u8 ap3223_regs[AP3223_NUM_CACHABLE_REGS] = { + 0x00, 0x01, 0x02, 0x06, 0x0A, + 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, + 0x10, 0x14, 0x1A, 0x1B, 0x1C, + 0x1D, 0x20, 0x21, 0x22, 0x23, + 0x24, 0x25, 0x26, 0x28, 0x29, + 0x2A, 0x2B, 0x2C, 0x2D, 0x30, + 0x32 +}; + +static u8 init_reg_config[] = { + 0x00, 0x03, + 0x10, 0x20, + 0X1A, 0xE8, + 0x1B, 0x03, + 0x1C, 0xD0, + 0x1D, 0x07, + 0x20, 0x04, + 0x21, 0x03, + 0x22, 0x01, + 0x23, 0x03, + 0x25, 0x0B, + 0x2A, 0x64, + 0x2C, 0xF4, + 0x2D, 0x00 +}; + +static int ap3223_range[] = { 65535, 16383, 4095, 1023 }; + +#define FIND_REG_IDX(addr, regs, idx) { \ + int i; \ + for (i = 0; i < sizeof(ap3223_regs); i++) { \ + if (addr == regs[i]) { \ + idx = i; \ + break; \ + } \ + } \ +} + +#define AP3223_LIGHT_CHANNEL { \ + .type = IIO_LIGHT, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ +} + +#define AP3223_PROXIMITY_CHANNEL { \ + .type = IIO_PROXIMITY, \ + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \ +} + +static const struct iio_chan_spec ap3223_channels[] = { + AP3223_LIGHT_CHANNEL, + AP3223_PROXIMITY_CHANNEL, +}; + +static int __ap3223_read_reg(struct i2c_client *client, + u32 reg, u8 mask, u8 shift) +{ + struct ap3223_data *data = iio_priv(i2c_get_clientdata(client)); + u8 idx = 0xff; + + FIND_REG_IDX(reg, ap3223_regs, idx); + + return (data->reg_cache[idx] & mask) >> shift; +} + +static int __ap3223_write_reg(struct i2c_client *client, + u32 reg, u8 mask, u8 shift, u8 val) +{ + struct ap3223_data *data = iio_priv(i2c_get_clientdata(client)); + int ret = 0; + u8 tmp; + u8 idx = 0xff; + + FIND_REG_IDX(reg, ap3223_regs, idx); + + if (idx >= sizeof(ap3223_regs)) + return -EINVAL; + + tmp = data->reg_cache[idx]; + tmp &= ~mask; + tmp |= val << shift; + + ret = i2c_smbus_write_byte_data(client, reg, tmp); + if (!ret) + data->reg_cache[idx] = tmp; + + return ret; +} + +static int ap3223_get_mode(struct i2c_client *client) +{ + return __ap3223_read_reg(client, AP3223_REG_SYS_CONF, + AP3223_REG_SYS_CONF_MASK, + AP3223_REG_SYS_CONF_SHIFT); +} + +static int ap3223_set_mode(struct i2c_client *client, int mode) +{ + return __ap3223_write_reg(client, AP3223_REG_SYS_CONF, + AP3223_REG_SYS_CONF_MASK, + AP3223_REG_SYS_CONF_SHIFT, mode); +} + +static int ap3223_get_range(struct i2c_client *client) +{ + u8 idx = __ap3223_read_reg(client, AP3223_REG_ALS_CONF, + AP3223_ALS_RANGE_MASK, + AP3223_ALS_RANGE_SHIFT); + return ap3223_range[idx]; +} + +static int ap3223_set_range(struct i2c_client *client, int range) +{ + return __ap3223_write_reg(client, AP3223_REG_ALS_CONF, + AP3223_ALS_RANGE_MASK, + AP3223_ALS_RANGE_SHIFT, range); +} + +static int ap3223_get_adc_value(struct i2c_client *client) +{ + unsigned int lsb, msb, val; + unsigned int tmp, range; + struct ap3223_data *data = iio_priv(i2c_get_clientdata(client)); + + lsb = i2c_smbus_read_byte_data(client, AP3223_REG_ALS_DATA_LOW); + + if (lsb < 0) + return lsb; + + msb = i2c_smbus_read_byte_data(client, AP3223_REG_ALS_DATA_HIGH); + + if (msb < 0) + return msb; + + range = ap3223_get_range(client); + + tmp = (((msb << 8) | lsb) * range) >> 16; + tmp = tmp * data->cali / 100; + val = tmp; + + return val; +} + +static int ap3223_get_object(struct i2c_client *client) +{ + int val; + + val = i2c_smbus_read_byte_data(client, AP3223_OBJ_COMMAND); + val &= AP3223_OBJ_MASK; + + return val >> AP3223_OBJ_SHIFT; +} + +/* Software Reset */ +static inline void ap3223_sw_reset(struct i2c_client *client) +{ + i2c_smbus_write_byte_data(client, 0x0, 0x4); +} + +static int ap3223_init_client(struct i2c_client *client) +{ + struct ap3223_data *data = iio_priv(i2c_get_clientdata(client)); + int i; + + dev_dbg(&client->dev, "AP3223 : Initializing Client ..\n"); + + /* Read all the registers once to fill the cache. + * Even if one of the read fails, we consider the init failed */ + for (i = 0; i < sizeof(ap3223_regs); i++) { + int v = i2c_smbus_read_byte_data(client, ap3223_regs[i]); + + if (v < 0) + return -ENODEV; + + data->reg_cache[i] = v; + } + + /* set defaults */ + ap3223_set_range(client, AP3223_ALS_RANGE_0); + ap3223_set_mode(data->client, AP3223_SYS_DEV_DOWN); + + return 0; +} + +static int ap3223_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, int *val, + int *val2, long mask) +{ + struct ap3223_data *data = iio_priv(indio_dev); + + switch (chan->type) { + case IIO_LIGHT: + switch (mask) { + case IIO_CHAN_INFO_RAW: + if (ap3223_get_mode(data->client) == + AP3223_SYS_DEV_DOWN) { + dev_err(&indio_dev->dev, + "Please power up first\n"); + return -EINVAL; + } + *val = ap3223_get_adc_value(data->client); + return IIO_VAL_INT; + } + break; + + case IIO_PROXIMITY: + switch (mask) { + case IIO_CHAN_INFO_RAW: + *val = ap3223_get_object(data->client); + dev_info(&data->client->dev, + "%s\n", *val ? "Object Near" : "Object Far"); + return IIO_VAL_INT; + } + break; + + default: + break; + } + return -EINVAL; +} + +static const struct iio_info ap3223_info = { + .driver_module = THIS_MODULE, + .read_raw = ap3223_read_raw, +}; + +static void ap3223_init_reg_config(struct i2c_client *client) +{ + int i; + + for (i = 0; i < sizeof(init_reg_config); i += 2) { + __ap3223_write_reg(client, init_reg_config[i], 0xff, + 0, init_reg_config[i + 1]); + } +} + +static int ap3223_init(struct ap3223_data *data) +{ + struct i2c_client *client = data->client; + struct i2c_adapter *adapter = to_i2c_adapter(client->dev.parent); + struct iio_dev *indio_dev = i2c_get_clientdata(data->client); + int err = 0; + + if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE)) { + err = -EIO; + goto exit_free_gpio; + } + + ap3223_sw_reset(client); + + err = ap3223_init_client(client); + if (err) + goto exit_free; + + ap3223_init_reg_config(client); + + dev_info(&client->dev, "%s : driver enabled\n", AP3223_DRV_NAME); + + return 0; + +exit_free: + devm_iio_device_free(&client->dev, indio_dev); + +exit_free_gpio: + return err; +} + +static int ap3223_probe(struct i2c_client *client, + const struct i2c_device_id *id) +{ + struct ap3223_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; + + data->cali = AP3223_DEFAULT_CAL; + + indio_dev->dev.parent = &client->dev; + indio_dev->info = &ap3223_info; + indio_dev->name = AP3223_DRV_NAME; + indio_dev->channels = ap3223_channels; + indio_dev->num_channels = ARRAY_SIZE(ap3223_channels); + indio_dev->modes = INDIO_DIRECT_MODE; + + ret = ap3223_init(data); + if (ret < 0) { + dev_err(&client->dev, "ap3223 chip init failed\n"); + return ret; + } + + return devm_iio_device_register(&client->dev, indio_dev); +} + +static int ap3223_remove(struct i2c_client *client) +{ + struct iio_dev *indio_dev = i2c_get_clientdata(client); + struct ap3223_data *data = iio_priv(indio_dev); + + ap3223_sw_reset(data->client); + ap3223_set_mode(data->client, 0); + + devm_iio_device_unregister(&client->dev, indio_dev); + devm_iio_device_free(&client->dev, indio_dev); + + return 0; +} + +static const struct i2c_device_id ap3223_id[] = { + {AP3223_DRV_NAME, 0}, + {} +}; +MODULE_DEVICE_TABLE(i2c, ap3223_id); + +static struct i2c_driver ap3223_driver = { + .driver = { + .name = AP3223_DRV_NAME, + .owner = THIS_MODULE, + }, + .probe = ap3223_probe, + .remove = ap3223_remove, + .id_table = ap3223_id, +}; + +module_i2c_driver(ap3223_driver); + +MODULE_AUTHOR("Suresh Rajashekara <sureshraj@xxxxxxxxxx>"); +MODULE_DESCRIPTION("AP3223 Ambient Light and Proximity Sensor Driver"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/iio/light/ap3223.h b/drivers/iio/light/ap3223.h new file mode 100644 index 0000000..0cc88e4 --- /dev/null +++ b/drivers/iio/light/ap3223.h @@ -0,0 +1,227 @@ +/* + * ap3223.h + * + * Copyright (C) 2015 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * Note about the original authors: + * + * The driver for AP3223 was originally distributed by dyna image in a + * different framework. This driver uses code from that driver and converts + * it to iio framework. The non-iio driver from dyna image is not available + * online anywhere, so there is no reference for it here. However, that driver + * is also GPLv2. The following is part of the header found in that file + * (The GPL notice from the original header is removed) + * + * >> This file is part of the AP3223, AP3212C and AP3216C sensor driver. + * >> AP3426 is combined proximity and ambient light sensor. + * >> AP3216C is combined proximity, ambient light sensor and IRLED. + * >> + * >> Contact: John Huang <john.huang@xxxxxxxxxxxxxx> + * >> Templeton Tsai <templeton.tsai@xxxxxxxxxxxxxx> + * + * Another author initials mentioned in that file was just YC (and no name). + * + * Not sure for what kernel version the driver from dyna image was written for. + * Vic Lee <Vic_Lee@xxxxxxxx> made modifications to it to run on 3.14. + */ + +#ifndef __AP3223_H__ +#define __AP3223_H__ + +#include <linux/ioctl.h> + +#define AP3223_SUCCESS 0 +#define AP3223_ERR_I2C -1 +#define AP3223_ERR_STATUS -3 +#define AP3223_ERR_SETUP_FAILURE -4 +#define AP3223_ERR_GETGSENSORDATA -5 +#define AP3223_ERR_IDENTIFICATION -6 + + +#define AP3223_NUM_CACHABLE_REGS 31 + +/* No adjustment to lux value reading */ +#define AP3223_DEFAULT_CAL 100 + +/* ap3223 control registers */ +#define AP3223_REG_SYS_CONF 0x00 +#define AP3223_REG_SYS_CONF_SHIFT (0) +#define AP3223_REG_SYS_CONF_MASK 0x07 + +#define AP3223_REG_SYS_INTSTATUS 0x01 +#define AP3223_REG_SYS_INT_SHIFT (0) +#define AP3223_REG_SYS_INT_PS_SHIFT (1) +#define AP3223_REG_SYS_INT_LS_SHIFT (0) +#define AP3223_REG_SYS_INT_MASK 0x03 +#define AP3223_REG_SYS_INT_PMASK 0x02 +#define AP3223_REG_SYS_INT_AMASK 0x01 + +#define AP3223_OBJ_COMMAND 0x01 +#define AP3223_OBJ_MASK 0x10 +#define AP3223_OBJ_SHIFT (4) + +#define AP3223_REG_SYS_INTCTRL 0x02 +#define AP3223_REG_SYS_WAITTIME 0x06 + +/* ap3223 data registers */ +#define AP3223_REG_IR_DATA_LOW 0x0A +#define AP3223_REG_IR_DATA_LOW_SHIFT (0) +#define AP3223_REG_IR_DATA_LOW_MASK 0xFF + +#define AP3223_REG_IR_DATA_HIGH 0x0B +#define AP3223_REG_IR_DATA_HIGH_SHIFT (0) +#define AP3223_REG_IR_DATA_HIGH_MASK 0x03 + +#define AP3223_REG_ALS_DATA_LOW 0x0C +#define AP3223_REG_ALS_DATA_HIGH 0x0D + +#define AP3223_REG_PS_DATA_LOW 0x0E +#define AP3223_REG_PS_DATA_LOW_SHIFT (0) +#define AL3223_REG_PS_DATA_LOW_MASK 0xFF +#define AP3223_REG_PS_DATA_HIGH 0x0F +#define AP3223_REG_PS_DATA_HIGH_SHIFT (0) +#define AL3223_REG_PS_DATA_HIGH_MASK 0x03 + +#define AP3223_REG_ALS_CONF 0x10 /*ALS GAIN */ + +#define AP3223_REG_ALS_PERSIS 0x14 +#define AP3223_REG_ALS_PERSIS_SHIFT (0) +#define AP3223_REG_ALS_PERSIS_MASK 0x3F +/* #define AP3223_REG_ALS_CAL 0x19 */ + +#define AP3223_REG_ALS_THDL_L 0x1A +#define AP3223_REG_ALS_THDL_L_SHIFT (0) +#define AP3223_REG_ALS_THDL_L_MASK 0xFF + +#define AP3223_REG_ALS_THDL_H 0x1B +#define AP3223_REG_ALS_THDL_H_SHIFT (0) +#define AP3223_REG_ALS_THDL_H_MASK 0xFF + +#define AP3223_REG_ALS_THDH_L 0x1C +#define AP3223_REG_ALS_THDH_L_SHIFT (0) +#define AP3223_REG_ALS_THDH_L_MASK 0xFF + +#define AP3223_REG_ALS_THDH_H 0x1D +#define AP3223_REG_ALS_THDH_H_SHIFT (0) +#define AP3223_REG_ALS_THDH_H_MASK 0xFF + + +/* ap3223 PS CONFIG registers */ +#define AP3223_REG_PS_CONF 0x20 /*PS GAIN */ +#define AP3223_REG_PS_CONF_SHIFT (2) +#define AP3223_REG_PS_CONF_MASK 0x0C + +#define AP3223_REG_PS_LEDD 0x21 /*PS LED DRIVER */ +#define AP3223_REG_PS_LEDD_SHIFT (0) +#define AP3223_REG_PS_LEDD_MASK 0x03 + +#define AP3223_REG_PS_IFORM 0x22 /* PS INT Mode */ + +#define AP3223_REG_PS_MEAN 0x23 +#define AP3223_REG_PS_MEAN_SHIFT (0) +#define AP3223_REG_PS_MEAN_MASK 0x03 + +#define AP3223_REG_PS_SMARTINT 0x24 /* PS Smart INT for low power */ +#define AP3223_REG_PS_INTEGR 0x25 +#define AP3223_REG_PS_PERSIS 0x26 +#define AP3223_REG_PS_PERSIS_SHIFT (0) +#define AP3223_REG_PS_PERSIS_MASK 0x3F +#define AP3223_REG_PS_CAL_L 0x28 +#define AP3223_REG_PS_CAL_L_SHIFT (0) +#define AP3223_REG_PS_CAL_L_MASK 0xFF +#define AP3223_REG_PS_CAL_H 0x29 +#define AP3223_REG_PS_CAL_H_SHIFT (0) +#define AP3223_REG_PS_CAL_H_MASK 0x01 + +#define AP3223_REG_PS_THDL_L 0x2A +#define AP3223_REG_PS_THDL_L_SHIFT (0) +#define AP3223_REG_PS_THDL_L_MASK 0xFF + +#define AP3223_REG_PS_THDL_H 0x2B +#define AP3223_REG_PS_THDL_H_SHIFT (0) +#define AP3223_REG_PS_THDL_H_MASK 0x03 + +#define AP3223_REG_PS_THDH_L 0x2C +#define AP3223_REG_PS_THDH_L_SHIFT (0) +#define AP3223_REG_PS_THDH_L_MASK 0xFF + +#define AP3223_REG_PS_THDH_H 0x2D +#define AP3223_REG_PS_THDH_H_SHIFT (0) +#define AP3223_REG_PS_THDH_H_MASK 0x03 + + +/* SYSTEM MODE (AP3223_REG_SYS_CONF) */ +#define AP3223_SYS_DEV_DOWN 0x00 +#define AP3223_SYS_ALS_ENABLE 0x01 +#define AP3223_SYS_PS_ENABLE 0x02 +#define AP3223_SYS_ALS_PS_ENABLE 0x03 +#define AP3223_SYS_DEV_RESET 0x04 + +/* INT FLAG BIT MASK */ +#define AP3223_SYS_ALS_INT_TRI 0x01 +#define AP3223_SYS_PS_INT_TRI 0x02 +#define AP3223_SYS_PS_INT_OBJ 0x10 +#define AP3223_SYS_PS_INT_IROV 0x20 + +/* INT CLEAN Mode */ +#define AP3223_SYS_ICLEAN_AUTO 0x00 +#define AP3223_SYS_ICLEAN_MANUAL 0x01 + +/* ALS CONFIG */ +#define AP3223_ALS_RANGE_0 0x00 /* Full range 32768 lux(0.5lux/count) */ +#define AP3223_ALS_RANGE_1 0x01 /* Full range 8192 lux */ +#define AP3223_ALS_RANGE_2 0x02 /* Full range 2048 lux */ +#define AP3223_ALS_RANGE_3 0x03 /* Full range 512 lux */ +#define AP3223_ALS_RANGE_MASK 0x30 +#define AP3223_ALS_RANGE_SHIFT (4) +#define AP3223_ALS_PERSIST_MASK 0x0F + +/* PS CONFIG */ +#define AP3223_PS_GAIN_1 0x00 /* PS resulation * 1 */ +#define AP3223_PS_GAIN_2 0x01 /* PS resulation * 2 */ +#define AP3223_PS_GAIN_4 0x02 /* PS resulation * 4 */ +#define AP3223_PS_GAIN_8 0x03 /* PS resulation * 8 */ +#define AP3223_PS_PERSIST_1 0x00 +#define AP3223_PS_PERSIST_2 0x01 +#define AP3223_PS_PERSIST_4 0x02 +#define AP3223_PS_PERSIST_8 0x03 + +/* PS LED Control */ +#define AP3223_PS_LED_P0 0x00 /* 0 puls */ +#define AP3223_PS_LED_P1 0x01 /* 1 puls (default) */ +#define AP3223_PS_LED_P2 0x02 /* 2 puls */ +#define AP3223_PS_LED_P3 0x03 /* 3 puls */ +#define AP3223_PS_DEIVER_167 0x00 /* 16.7% */ +#define AP3223_PS_DEIVER_333 0x01 /* 33.3% */ +#define AP3223_PS_DEIVER_667 0x02 /* 66.7% */ +#define AP3223_PS_DEIVER_1000 0x03 /* 100% (default) */ + +/* PS MEAN */ +#define AP3223_PS_MEAN_0 0x00 /* 5ms @2T */ +#define AP3223_PS_MEAN_1 0x01 /* 9.6ms @2T */ +#define AP3223_PS_MEAN_2 0x02 /* 14.1ms @2T */ +#define AP3223_PS_MEAN_3 0x03 /* 18.7ms @2T */ + +#define DISABLE 0x00 +#define ENABLE 0x01 + +/* PS Engineering Registers */ +#define AP3223_REG_PS_DC_1 0x30 /* Only in Engineering chip, + couldn't find in datasheet */ +#define AP3223_REG_PS_DC_1_SHIFT (0) +#define AP3223_REG_PS_DC_1_MASK 0xFF +#define AP3223_REG_PS_DC_2 0x32 /* Only in Engineering chip, + couldn't find in datasheet */ +#define AP3223_REG_PS_DC_2_SHIFT (0) +#define AP3223_REG_PS_DC_2_MASK 0xFF + +#endif /* __AP3223_H__ */ -- 2.6.0.rc2.230.g3dd15c0 -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
