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Message-ID: <1335197111.26096.5.camel@jonz-ub2>
Date: Mon, 23 Apr 2012 11:05:11 -0500
From: Jon Brenner <jbrenner@...sinc.com>
To: Jonathan Cameron <jic23@...nel.org>
Cc: Jonathan Cameron <jic23@....ac.uk>,
linux-iio <linux-iio@...r.kernel.org>,
Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V7] TAOS tsl2x7x
On Mon, 2012-04-23 at 16:34 +0100, Jonathan Cameron wrote:
> On 4/20/2012 11:41 PM, Jon Brenner wrote:
> > TAOS device driver (version 7) for the tsl/tmd 2771 and 2772 device families (inc. all variants).
> >
> > Updates:
> > Documentation - added prefix corrections.
> Sorry Jon,
>
> Few more bits in here..
>
> err. I still see illuminance0_calibrate and proximity_calibrate. Both of
> those want prefixes as well.
OK - Was under impression those didn't want in_.
Will fix - should have asked.
How about the 'available' abi
(ie. dev_attr_illuminance0_calibscale_available) ?
> Also in_illuminance0_intergration_time isn't in the abi docs. If we are
> happy with this abi, we'll move
> it into info_mask in the core.
It's in the sysfs-bus-iio-light doc.
Noticed that most do not have the 'in_' prefix in this doc. Do they
need it?
>
> Also the merge on the docs seems to have messed up. Pleasee fix that.
>
What do you mean by messed up - please explain?
What about the /Documentation/light/ directory - do you still what this
in there?
> Note that if this crosses with the move out of staging series then the
> header paths will need
> updating.
When is this going to happen and what header paths are you talking
about?
> Sorry for making life hard all over again!
>
>
Thanks
Jon
>
> Jonathan
> > Code - removed FP division, incorporation of new IIO_CHAN_INFO_ bitmasks into .info_mask, various comment and consistency clean-ups.
> >
> > Signed-off-by: Jon Brenner<jbrenner@...sinc.com>
> >
> > ---
> > .../light/sysfs-bus-iio-light-tsl2583 | 6 +
> > .../light/sysfs-bus-iio-light-tsl2x7x | 13 +
> > drivers/staging/iio/Documentation/sysfs-bus-iio | 16 +-
> > .../staging/iio/Documentation/sysfs-bus-iio-light | 8 +-
> > drivers/staging/iio/light/Kconfig | 8 +
> > drivers/staging/iio/light/Makefile | 1 +
> > drivers/staging/iio/light/tsl2x7x.h | 100 +
> > drivers/staging/iio/light/tsl2x7x_core.c | 2073 ++++++++++++++++++++
> > 8 files changed, 2217 insertions(+), 8 deletions(-)
> >
> > diff --git a/drivers/staging/iio/Documentation/light/sysfs-bus-iio-light-tsl2583 b/drivers/staging/iio/Documentation/light/sysfs-bus-iio-light-tsl2583
> > new file mode 100755
> > index 0000000..8f2a038
> > --- /dev/null
> > +++ b/drivers/staging/iio/Documentation/light/sysfs-bus-iio-light-tsl2583
> > @@ -0,0 +1,6 @@
> > +What: /sys/bus/iio/devices/device[n]/illuminance0_calibrate
> > +KernelVersion: 2.6.37
> > +Contact: linux-iio@...r.kernel.org
> > +Description:
> > + This property causes an internal calibration of the als gain trim
> > + value which is later used in calculating illuminance in lux.
> > diff --git a/drivers/staging/iio/Documentation/light/sysfs-bus-iio-light-tsl2x7x b/drivers/staging/iio/Documentation/light/sysfs-bus-iio-light-tsl2x7x
> > new file mode 100755
> > index 0000000..c0b1d4d
> > --- /dev/null
> > +++ b/drivers/staging/iio/Documentation/light/sysfs-bus-iio-light-tsl2x7x
> > @@ -0,0 +1,13 @@
> > +What: /sys/bus/iio/devices/device[n]/illuminance0_calibrate
> > +KernelVersion: 3.3-rc1
> > +Contact: linux-iio@...r.kernel.org
> > +Description:
> > + Causes an internal calibration of the als gain trim
> > + value which is later used in calculating illuminance in lux.
> > +
> > +What: /sys/bus/iio/devices/device[n]/proximity_calibrate
> > +KernelVersion: 3.3-rc1
> > +Contact: linux-iio@...r.kernel.org
> > +Description:
> > + Causes a recalculation and adjustment to the
> > + proximity_thresh_rising_value.
> > diff --git a/drivers/staging/iio/Documentation/sysfs-bus-iio b/drivers/staging/iio/Documentation/sysfs-bus-iio
> > index ca12784..14cba73 100644
> > --- a/drivers/staging/iio/Documentation/sysfs-bus-iio
> > +++ b/drivers/staging/iio/Documentation/sysfs-bus-iio
> > @@ -258,6 +258,8 @@ What /sys/bus/iio/devices/iio:deviceX/in_accel_z_calibscale
> > What /sys/bus/iio/devices/iio:deviceX/in_anglvel_x_calibscale
> > What /sys/bus/iio/devices/iio:deviceX/in_anglvel_y_calibscale
> > What /sys/bus/iio/devices/iio:deviceX/in_anglvel_z_calibscale
> > +what /sys/bus/iio/devices/iio:deviceX/in_illuminance0_calibscale
> > +what /sys/bus/iio/devices/iio:deviceX/in_proximity_calibscale
> > KernelVersion: 2.6.35
> > Contact: linux-iio@...r.kernel.org
> > Description:
> > @@ -453,10 +455,14 @@ What: /sys/.../events/in_magn_z_raw_thresh_rising_value
> > What: /sys/.../events/in_magn_z_raw_thresh_falling_value
> > What: /sys/.../events/in_voltageY_supply_raw_thresh_rising_value
> > What: /sys/.../events/in_voltageY_supply_raw_thresh_falling_value
> > -What: /sys/.../events/in_voltageY_raw_thresh_rising_value
> > What: /sys/.../events/in_voltageY_raw_thresh_falling_value
> > -What: /sys/.../events/in_tempY_raw_thresh_rising_value
> > +What: /sys/.../events/in_voltageY_raw_thresh_falling_value
> > +What: /sys/.../events/in_tempY_raw_thresh_falling_value
> err. I think a merge has gone wrong here. Please fix. Check the rest
> as well.
> > What: /sys/.../events/in_tempY_raw_thresh_falling_value
> > +What: /sys/.../events/in_illuminance0_thresh_falling_value
> > +what: /sys/.../events/in_illuminance0_thresh_rising_value
> > +what: /sys/.../events/in_proximity_thresh_falling_value
> > +what: /sys/.../events/in_proximity_thresh_rising_value
> > KernelVersion: 2.6.37
> > Contact: linux-iio@...r.kernel.org
> > Description:
> > @@ -490,9 +496,9 @@ What: /sys/.../events/in_magn_z_raw_roc_rising_value
> > What: /sys/.../events/in_magn_z_raw_roc_falling_value
> > What: /sys/.../events/in_voltageY_supply_raw_roc_rising_value
> > What: /sys/.../events/in_voltageY_supply_raw_roc_falling_value
> > -What: /sys/.../events/in_voltageY_raw_roc_rising_value
> > What: /sys/.../events/in_voltageY_raw_roc_falling_value
> > -What: /sys/.../events/in_tempY_raw_roc_rising_value
> > +What: /sys/.../events/in_voltageY_raw_roc_falling_value
> > +What: /sys/.../events/in_tempY_raw_roc_falling_value
> > What: /sys/.../events/in_tempY_raw_roc_falling_value
> > KernelVersion: 2.6.37
> > Contact: linux-iio@...r.kernel.org
> > @@ -556,6 +562,8 @@ What: /sys/.../events/in_tempY_thresh_falling_period
> > What: /sys/.../events/in_tempY_roc_rising_period
> > What: /sys/.../events/in_tempY_roc_falling_period
> > What: /sys/.../events/in_accel_x&y&z_mag_falling_period
> > +What: /sys/.../events/in_intensity_thresh_period
> > +What: /sys/.../events/in_proximity_thresh_period
> > KernelVersion: 2.6.37
> > Contact: linux-iio@...r.kernel.org
> > Description:
> > diff --git a/drivers/staging/iio/Documentation/sysfs-bus-iio-light b/drivers/staging/iio/Documentation/sysfs-bus-iio-light
> > index edbf470..4385c70 100644
> > --- a/drivers/staging/iio/Documentation/sysfs-bus-iio-light
> > +++ b/drivers/staging/iio/Documentation/sysfs-bus-iio-light
> > @@ -76,10 +76,10 @@ Contact: linux-iio@...r.kernel.org
> > Description:
> > This property gets/sets the sensors ADC analog integration time.
> >
> > -What: /sys/bus/iio/devices/device[n]/illuminance0_calibscale
> > +What: /sys/bus/iio/devices/device[n]/lux_table
> > KernelVersion: 2.6.37
> > Contact: linux-iio@...r.kernel.org
> > Description:
> > - Hardware or software applied calibration scale factor assumed
> > - to account for attenuation due to industrial design (glass
> > - filters or aperture holes).
> > + This property gets/sets the table of coefficients
> > + used in calculating illuminance in lux.
> > +
> > diff --git a/drivers/staging/iio/light/Kconfig b/drivers/staging/iio/light/Kconfig
> > index bb633f6..821ad6b 100644
> > --- a/drivers/staging/iio/light/Kconfig
> > +++ b/drivers/staging/iio/light/Kconfig
> > @@ -41,4 +41,12 @@ config TSL2583
> > Provides support for the TAOS tsl2580, tsl2581 and tsl2583 devices.
> > Access ALS data via iio, sysfs.
> >
> > +config TSL2x7x
> > + tristate "TAOS TSL/TMD2x71 and TSL/TMD2x72 Family of light and proximity sensors"
> > + depends on I2C
> > + help
> > + Support for: tsl2571, tsl2671, tmd2671, tsl2771, tmd2771, tsl2572, tsl2672,
> > + tmd2672, tsl2772, tmd2772 devices.
> > + Provides iio_events and direct access via sysfs.
> > +
> > endmenu
> > diff --git a/drivers/staging/iio/light/Makefile b/drivers/staging/iio/light/Makefile
> > index 535d313..141af1e 100644
> > --- a/drivers/staging/iio/light/Makefile
> > +++ b/drivers/staging/iio/light/Makefile
> > @@ -6,3 +6,4 @@ obj-$(CONFIG_SENSORS_TSL2563) += tsl2563.o
> > obj-$(CONFIG_SENSORS_ISL29018) += isl29018.o
> > obj-$(CONFIG_SENSORS_ISL29028) += isl29028.o
> > obj-$(CONFIG_TSL2583) += tsl2583.o
> > +obj-$(CONFIG_TSL2x7x) += tsl2x7x_core.o
> > diff --git a/drivers/staging/iio/light/tsl2x7x.h b/drivers/staging/iio/light/tsl2x7x.h
> > new file mode 100755
> > index 0000000..c4acf5f
> > --- /dev/null
> > +++ b/drivers/staging/iio/light/tsl2x7x.h
> > @@ -0,0 +1,100 @@
> > +/*
> > + * Device driver for monitoring ambient light intensity (lux)
> > + * and proximity (prox) within the TAOS TSL2X7X family of devices.
> > + *
> > + * Copyright (c) 2012, TAOS Corporation.
> > + *
> > + * This program is free software; you can redistribute it and/or modify
> > + * it under the terms of the GNU General Public License as published by
> > + * the Free Software Foundation; either version 2 of the License, or
> > + * (at your option) any later version.
> > + *
> > + * 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.
> > + *
> > + * You should have received a copy of the GNU General Public License along
> > + * with this program; if not, write to the Free Software Foundation, Inc.,
> > + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
> > + */
> > +
> > +#ifndef __TSL2X7X_H
> > +#define __TSL2X7X_H
> > +#include<linux/pm.h>
> > +
> > +/* Max number of segments allowable in LUX table */
> > +#define TSL2X7X_MAX_LUX_TABLE_SIZE 9
> > +#define MAX_DEFAULT_TABLE_BYTES (sizeof(int) * TSL2X7X_MAX_LUX_TABLE_SIZE)
> > +
> > +struct iio_dev;
> > +
> > +struct tsl2x7x_lux {
> > + unsigned int ratio;
> > + unsigned int ch0;
> > + unsigned int ch1;
> > +};
> > +
> > +/**
> > + * struct tsl2x7x_default_settings - power on defaults unless
> > + * overridden by platform data.
> > + * @als_time: ALS Integration time - multiple of 50mS
> > + * @als_gain: Index into the ALS gain table.
> > + * @als_gain_trim: default gain trim to account for
> > + * aperture effects.
> > + * @wait_time: Time between PRX and ALS cycles
> > + * in 2.7 periods
> > + * @prx_time: 5.2ms prox integration time -
> > + * decrease in 2.7ms periods
> > + * @prx_gain: Proximity gain index
> > + * @prox_config: Prox configuration filters.
> > + * @als_cal_target: Known external ALS reading for
> > + * calibration.
> > + * @interrupts_en: Enable/Disable - 0x00 = none, 0x10 = als,
> > + * 0x20 = prx, 0x30 = bth
> > + * @persistence: H/W Filters, Number of 'out of limits'
> > + * ADC readings PRX/ALS.
> > + * @als_thresh_low: CH0 'low' count to trigger interrupt.
> > + * @als_thresh_high: CH0 'high' count to trigger interrupt.
> > + * @prox_thres_low: Low threshold proximity detection.
> > + * @prox_thres_high: High threshold proximity detection
> > + * @prox_pulse_count: Number if proximity emitter pulses
> > + * @prox_max_samples_cal: Used for prox cal.
> > + */
> > +struct tsl2x7x_settings {
> > + int als_time;
> > + int als_gain;
> > + int als_gain_trim;
> > + int wait_time;
> > + int prx_time;
> > + int prox_gain;
> > + int prox_config;
> > + int als_cal_target;
> > + u8 interrupts_en;
> > + u8 persistence;
> > + int als_thresh_low;
> > + int als_thresh_high;
> > + int prox_thres_low;
> > + int prox_thres_high;
> > + int prox_pulse_count;
> > + int prox_max_samples_cal;
> > +};
> > +
> > +/**
> > + * struct tsl2X7X_platform_data - Platform callback, glass and defaults
> > + * @platform_power: Suspend/resume platform callback
> > + * @power_on: Power on callback
> > + * @power_off: Power off callback
> > + * @platform_lux_table: Device specific glass coefficents
> > + * @platform_default_settings: Device specific power on defaults
> > + *
> > + */
> > +struct tsl2X7X_platform_data {
> > + int (*platform_power)(struct device *dev, pm_message_t);
> > + int (*power_on) (struct iio_dev *indio_dev);
> > + int (*power_off) (struct i2c_client *dev);
> > + struct tsl2x7x_lux platform_lux_table[TSL2X7X_MAX_LUX_TABLE_SIZE];
> > + struct tsl2x7x_settings *platform_default_settings;
> > +};
> > +
> > +#endif /* __TSL2X7X_H */
> > diff --git a/drivers/staging/iio/light/tsl2x7x_core.c b/drivers/staging/iio/light/tsl2x7x_core.c
> > new file mode 100755
> > index 0000000..79605a8
> > --- /dev/null
> > +++ b/drivers/staging/iio/light/tsl2x7x_core.c
> > @@ -0,0 +1,2073 @@
> > +/*
> > + * Device driver for monitoring ambient light intensity in (lux)
> > + * and proximity detection (prox) within the TAOS TSL2X7X family of devices.
> > + *
> > + * Copyright (c) 2012, TAOS Corporation.
> > + *
> > + * This program is free software; you can redistribute it and/or modify
> > + * it under the terms of the GNU General Public License as published by
> > + * the Free Software Foundation; either version 2 of the License, or
> > + * (at your option) any later version.
> > + *
> > + * 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.
> > + *
> > + * You should have received a copy of the GNU General Public License along
> > + * with this program; if not, write to the Free Software Foundation, Inc.,
> > + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
> > + */
> > +
> > +#include<linux/kernel.h>
> > +#include<linux/i2c.h>
> > +#include<linux/errno.h>
> > +#include<linux/delay.h>
> > +#include<linux/mutex.h>
> > +#include<linux/interrupt.h>
> > +#include<linux/slab.h>
> > +#include<linux/module.h>
> > +#include<linux/version.h>
> > +#include "tsl2x7x.h"
> > +#include "../events.h"
> > +#include "../iio.h"
> > +#include "../sysfs.h"
> > +
> > +/* Cal defs*/
> > +#define PROX_STAT_CAL 0
> > +#define PROX_STAT_SAMP 1
> > +#define MAX_SAMPLES_CAL 200
> > +
> > +/* TSL2X7X Device ID */
> > +#define TRITON_ID 0x00
> > +#define SWORDFISH_ID 0x30
> > +#define HALIBUT_ID 0x20
> > +
> > +/* Lux calculation constants */
> > +#define TSL2X7X_LUX_CALC_OVER_FLOW 65535
> > +
> > +/* TAOS Register definitions - note:
> > + * depending on device, some of these register are not used and the
> > + * register address is benign.
> > + */
> > +/* 2X7X register offsets */
> > +#define TSL2X7X_MAX_CONFIG_REG 16
> > +
> > +/* Device Registers and Masks */
> > +#define TSL2X7X_CNTRL 0x00
> > +#define TSL2X7X_ALS_TIME 0X01
> > +#define TSL2X7X_PRX_TIME 0x02
> > +#define TSL2X7X_WAIT_TIME 0x03
> > +#define TSL2X7X_ALS_MINTHRESHLO 0X04
> > +#define TSL2X7X_ALS_MINTHRESHHI 0X05
> > +#define TSL2X7X_ALS_MAXTHRESHLO 0X06
> > +#define TSL2X7X_ALS_MAXTHRESHHI 0X07
> > +#define TSL2X7X_PRX_MINTHRESHLO 0X08
> > +#define TSL2X7X_PRX_MINTHRESHHI 0X09
> > +#define TSL2X7X_PRX_MAXTHRESHLO 0X0A
> > +#define TSL2X7X_PRX_MAXTHRESHHI 0X0B
> > +#define TSL2X7X_PERSISTENCE 0x0C
> > +#define TSL2X7X_PRX_CONFIG 0x0D
> > +#define TSL2X7X_PRX_COUNT 0x0E
> > +#define TSL2X7X_GAIN 0x0F
> > +#define TSL2X7X_NOTUSED 0x10
> > +#define TSL2X7X_REVID 0x11
> > +#define TSL2X7X_CHIPID 0x12
> > +#define TSL2X7X_STATUS 0x13
> > +#define TSL2X7X_ALS_CHAN0LO 0x14
> > +#define TSL2X7X_ALS_CHAN0HI 0x15
> > +#define TSL2X7X_ALS_CHAN1LO 0x16
> > +#define TSL2X7X_ALS_CHAN1HI 0x17
> > +#define TSL2X7X_PRX_LO 0x18
> > +#define TSL2X7X_PRX_HI 0x19
> > +
> > +/* tsl2X7X cmd reg masks */
> > +#define TSL2X7X_CMD_REG 0x80
> > +#define TSL2X7X_CMD_SPL_FN 0x60
> > +
> > +#define TSL2X7X_CMD_PROX_INT_CLR 0X05
> > +#define TSL2X7X_CMD_ALS_INT_CLR 0x06
> > +#define TSL2X7X_CMD_PROXALS_INT_CLR 0X07
> > +
> > +/* tsl2X7X cntrl reg masks */
> > +#define TSL2X7X_CNTL_ADC_ENBL 0x02
> > +#define TSL2X7X_CNTL_PWR_ON 0x01
> > +
> > +/* tsl2X7X status reg masks */
> > +#define TSL2X7X_STA_ADC_VALID 0x01
> > +#define TSL2X7X_STA_PRX_VALID 0x02
> > +#define TSL2X7X_STA_ADC_PRX_VALID (TSL2X7X_STA_ADC_VALID |\
> > + TSL2X7X_STA_PRX_VALID)
> > +#define TSL2X7X_STA_ALS_INTR 0x10
> > +#define TSL2X7X_STA_PRX_INTR 0x20
> > +
> > +/* tsl2X7X cntrl reg masks */
> > +#define TSL2X7X_CNTL_REG_CLEAR 0x00
> > +#define TSL2X7X_CNTL_PROX_INT_ENBL 0X20
> > +#define TSL2X7X_CNTL_ALS_INT_ENBL 0X10
> > +#define TSL2X7X_CNTL_WAIT_TMR_ENBL 0X08
> > +#define TSL2X7X_CNTL_PROX_DET_ENBL 0X04
> > +#define TSL2X7X_CNTL_PWRON 0x01
> > +#define TSL2X7X_CNTL_ALSPON_ENBL 0x03
> > +#define TSL2X7X_CNTL_INTALSPON_ENBL 0x13
> > +#define TSL2X7X_CNTL_PROXPON_ENBL 0x0F
> > +#define TSL2X7X_CNTL_INTPROXPON_ENBL 0x2F
> > +
> > +/*Prox diode to use */
> > +#define TSL2X7X_DIODE0 0x10
> > +#define TSL2X7X_DIODE1 0x20
> > +#define TSL2X7X_DIODE_BOTH 0x30
> > +
> > +/* LED Power */
> > +#define TSL2X7X_mA100 0x00
> > +#define TSL2X7X_mA50 0x40
> > +#define TSL2X7X_mA25 0x80
> > +#define TSL2X7X_mA13 0xD0
> > +#define TSL2X7X_MAX_TIMER_CNT (0xFF)
> > +
> > +/*Common device IIO EventMask */
> > +#define TSL2X7X_EVENT_MASK \
> > + (IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING) | \
> > + IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING)),
> > +
> > +/* TAOS txx2x7x Device family members */
> > +enum {
> > + tsl2571,
> > + tsl2671,
> > + tmd2671,
> > + tsl2771,
> > + tmd2771,
> > + tsl2572,
> > + tsl2672,
> > + tmd2672,
> > + tsl2772,
> > + tmd2772
> > +};
> > +
> > +enum {
> > + TSL2X7X_CHIP_UNKNOWN = 0,
> > + TSL2X7X_CHIP_WORKING = 1,
> > + TSL2X7X_CHIP_SUSPENDED = 2
> > +};
> > +
> > +struct tsl2x7x_parse_result {
> > + int integer;
> > + int fract;
> > +};
> > +
> > +/* Per-device data */
> > +struct tsl2x7x_als_info {
> > + u16 als_ch0;
> > + u16 als_ch1;
> > + u16 lux;
> > +};
> > +
> > +struct tsl2x7x_prox_stat {
> > + int min;
> > + int max;
> > + int mean;
> > + unsigned long stddev;
> > +};
> > +
> > +struct tsl2x7x_chip_info {
> > + int chan_table_elements;
> > + struct iio_chan_spec channel[4];
> > + const struct iio_info *info;
> > +};
> > +
> > +struct tsl2X7X_chip {
> > + kernel_ulong_t id;
> > + struct mutex prox_mutex;
> > + struct mutex als_mutex;
> > + struct i2c_client *client;
> > + u16 prox_data;
> > + struct tsl2x7x_als_info als_cur_info;
> > + struct tsl2x7x_settings tsl2x7x_settings;
> > + struct tsl2X7X_platform_data *pdata;
> > + int als_time_scale;
> > + int als_saturation;
> > + int tsl2x7x_chip_status;
> > + u8 tsl2x7x_config[TSL2X7X_MAX_CONFIG_REG];
> > + const struct tsl2x7x_chip_info *chip_info;
> > + const struct iio_info *info;
> > + s64 event_timestamp;
> > + /* This structure is intentionally large to accommodate
> > + * updates via sysfs. */
> > + /* Sized to 9 = max 8 segments + 1 termination segment */
> > + struct tsl2x7x_lux tsl2x7x_device_lux[TSL2X7X_MAX_LUX_TABLE_SIZE];
> > +};
> > +
> > +/* Different devices require different coefficents */
> > +static const struct tsl2x7x_lux tsl2x71_lux_table[] = {
> > + { 14461, 611, 1211 },
> > + { 18540, 352, 623 },
> > + { 0, 0, 0 },
> > +};
> > +
> > +static const struct tsl2x7x_lux tmd2x71_lux_table[] = {
> > + { 11635, 115, 256 },
> > + { 15536, 87, 179 },
> > + { 0, 0, 0 },
> > +};
> > +
> > +static const struct tsl2x7x_lux tsl2x72_lux_table[] = {
> > + { 14013, 466, 917 },
> > + { 18222, 310, 552 },
> > + { 0, 0, 0 },
> > +};
> > +
> > +static const struct tsl2x7x_lux tmd2x72_lux_table[] = {
> > + { 13218, 130, 262 },
> > + { 17592, 92, 169 },
> > + { 0, 0, 0 },
> > +};
> > +
> > +static const struct tsl2x7x_lux *tsl2x7x_default_lux_table_group[] = {
> > + [tsl2571] = tsl2x71_lux_table,
> > + [tsl2671] = tsl2x71_lux_table,
> > + [tmd2671] = tmd2x71_lux_table,
> > + [tsl2771] = tsl2x71_lux_table,
> > + [tmd2771] = tmd2x71_lux_table,
> > + [tsl2572] = tsl2x72_lux_table,
> > + [tsl2672] = tsl2x72_lux_table,
> > + [tmd2672] = tmd2x72_lux_table,
> > + [tsl2772] = tsl2x72_lux_table,
> > + [tmd2772] = tmd2x72_lux_table,
> > +};
> > +
> > +static const struct tsl2x7x_settings tsl2x7x_default_settings = {
> > + .als_time = 219, /* 101 ms */
> > + .als_gain = 0,
> > + .prx_time = 254, /* 5.4 ms */
> > + .prox_gain = 1,
> > + .wait_time = 245,
> > + .prox_config = 0,
> > + .als_gain_trim = 1000,
> > + .als_cal_target = 150,
> > + .als_thresh_low = 200,
> > + .als_thresh_high = 256,
> > + .persistence = 255,
> > + .interrupts_en = 0,
> > + .prox_thres_low = 0,
> > + .prox_thres_high = 512,
> > + .prox_max_samples_cal = 30,
> > + .prox_pulse_count = 8
> > +};
> > +
> > +static const s16 tsl2X7X_als_gainadj[] = {
> > + 1,
> > + 8,
> > + 16,
> > + 120
> > +};
> > +
> > +static const s16 tsl2X7X_prx_gainadj[] = {
> > + 1,
> > + 2,
> > + 4,
> > + 8
> > +};
> > +
> > +/* Channel variations */
> > +enum {
> > + ALS,
> > + PRX,
> > + ALSPRX,
> > + PRX2,
> > + ALSPRX2,
> > +};
> > +
> > +const u8 device_channel_config[] = {
> > + ALS,
> > + PRX,
> > + PRX,
> > + ALSPRX,
> > + ALSPRX,
> > + ALS,
> > + PRX2,
> > + PRX2,
> > + ALSPRX2,
> > + ALSPRX2
> > +};
> > +
> > +/**
> > + * tsl2x7x_parse_buffer() - parse a decimal result from a buffer.
> > + * @*buf: pointer to char buffer to parse
> > + * @*result: pointer to buffer to contain
> > + * resulting interger / decimal as ints.
> > + *
> > + */
> > +static int
> > +tsl2x7x_parse_buffer(const char *buf, struct tsl2x7x_parse_result *result)
> > +{
> > + int integer = 0, fract = 0, fract_mult = 100000;
> > + bool integer_part = true, negative = false;
> > +
> > + if (buf[0] == '-') {
> > + negative = true;
> > + buf++;
> > + }
> > +
> > + while (*buf) {
> > + if ('0'<= *buf&& *buf<= '9') {
> > + if (integer_part)
> > + integer = integer*10 + *buf - '0';
> > + else {
> > + fract += fract_mult*(*buf - '0');
> > + if (fract_mult == 1)
> > + break;
> > + fract_mult /= 10;
> > + }
> > + } else if (*buf == '\n') {
> > + if (*(buf + 1) == '\0')
> > + break;
> > + else
> > + return -EINVAL;
> > + } else if (*buf == '.') {
> > + integer_part = false;
> > + } else {
> > + return -EINVAL;
> > + }
> > + buf++;
> > + }
> > + if (negative) {
> > + if (integer)
> > + integer = -integer;
> > + else
> > + fract = -fract;
> > + }
> > +
> > + result->integer = integer;
> > + result->fract = fract;
> > +
> > + return 0;
> > +}
> > +
> > +/**
> > + * tsl2x7x_i2c_read() - Read a byte from a register.
> > + * @client: i2c client
> > + * @reg: device register to read from
> > + * @*val: pointer to location to store register contents.
> > + *
> > + */
> > +static int
> > +tsl2x7x_i2c_read(struct i2c_client *client, u8 reg, u8 *val)
> > +{
> > + int ret = 0;
> > +
> > + /* select register to write */
> > + ret = i2c_smbus_write_byte(client, (TSL2X7X_CMD_REG | reg));
> > + if (ret< 0) {
> > + dev_err(&client->dev, "%s: failed to write register %x\n"
> > + , __func__, reg);
> > + return ret;
> > + }
> > +
> > + /* read the data */
> > + ret = i2c_smbus_read_byte(client);
> > + if (ret>= 0)
> > + *val = (u8)ret;
> > + else
> > + dev_err(&client->dev, "%s: failed to read register %x\n"
> > + , __func__, reg);
> > +
> > + return ret;
> > +}
> > +
> > +/**
> > + * tsl2x7x_get_lux() - Reads and calculates current lux value.
> > + * @indio_dev: pointer to IIO device
> > + *
> > + * The raw ch0 and ch1 values of the ambient light sensed in the last
> > + * integration cycle are read from the device.
> > + * Time scale factor array values are adjusted based on the integration time.
> > + * The raw values are multiplied by a scale factor, and device gain is obtained
> > + * using gain index. Limit checks are done next, then the ratio of a multiple
> > + * of ch1 value, to the ch0 value, is calculated. Array tsl2x7x_device_lux[]
> > + * is then scanned to find the first ratio value that is just above the ratio
> > + * we just calculated. The ch0 and ch1 multiplier constants in the array are
> > + * then used along with the time scale factor array values, to calculate the
> > + * lux.
> > + */
> > +static int tsl2x7x_get_lux(struct iio_dev *indio_dev)
> > +{
> > + u16 ch0, ch1; /* separated ch0/ch1 data from device */
> > + u32 lux; /* raw lux calculated from device data */
> > + u64 lux64;
> > + u32 ratio;
> > + u8 buf[4];
> > + struct tsl2x7x_lux *p;
> > + struct tsl2X7X_chip *chip = iio_priv(indio_dev);
> > + int i, ret;
> > + u32 ch0lux = 0;
> > + u32 ch1lux = 0;
> > +
> > + if (mutex_trylock(&chip->als_mutex) == 0)
> > + return chip->als_cur_info.lux; /* busy, so return LAST VALUE */
> > +
> > + if (chip->tsl2x7x_chip_status != TSL2X7X_CHIP_WORKING) {
> > + /* device is not enabled */
> > + dev_err(&chip->client->dev, "%s: device is not enabled\n",
> > + __func__);
> > + ret = -EBUSY ;
> > + goto out_unlock;
> > + }
> > +
> > + ret = tsl2x7x_i2c_read(chip->client,
> > + (TSL2X7X_CMD_REG | TSL2X7X_STATUS),&buf[0]);
> > + if (ret< 0) {
> > + dev_err(&chip->client->dev,
> > + "%s: Failed to read STATUS Reg\n", __func__);
> > + goto out_unlock;
> > + }
> > + /* is data new& valid */
> > + if (!(buf[0]& TSL2X7X_STA_ADC_VALID)) {
> > + dev_err(&chip->client->dev,
> > + "%s: data not valid yet\n", __func__);
> > + ret = chip->als_cur_info.lux; /* return LAST VALUE */
> > + goto out_unlock;
> > + }
> > +
> > + for (i = 0; i< 4; i++) {
> > + ret = tsl2x7x_i2c_read(chip->client,
> > + (TSL2X7X_CMD_REG | (TSL2X7X_ALS_CHAN0LO + i)),
> > + &buf[i]);
> > + if (ret< 0) {
> > + dev_err(&chip->client->dev,
> > + "%s: failed to read. err=%x\n", __func__, ret);
> > + goto out_unlock;
> > + }
> > + }
> > +
> > + /* clear any existing interrupt status */
> > + ret = i2c_smbus_write_byte(chip->client,
> > + (TSL2X7X_CMD_REG |
> > + TSL2X7X_CMD_SPL_FN |
> > + TSL2X7X_CMD_ALS_INT_CLR));
> > + if (ret< 0) {
> > + dev_err(&chip->client->dev,
> > + "%s: i2c_write_command failed - err = %d\n",
> > + __func__, ret);
> > + goto out_unlock; /* have no data, so return failure */
> > + }
> > +
> > + /* extract ALS/lux data */
> > + ch0 = le16_to_cpup((const __le16 *)&buf[0]);
> > + ch1 = le16_to_cpup((const __le16 *)&buf[2]);
> > +
> > + chip->als_cur_info.als_ch0 = ch0;
> > + chip->als_cur_info.als_ch1 = ch1;
> > +
> > + if ((ch0>= chip->als_saturation) || (ch1>= chip->als_saturation)) {
> > + lux = TSL2X7X_LUX_CALC_OVER_FLOW;
> > + goto return_max;
> > + }
> > +
> > + if (ch0 == 0) {
> > + /* have no data, so return LAST VALUE */
> > + ret = chip->als_cur_info.lux;
> > + goto out_unlock;
> > + }
> > + /* calculate ratio */
> > + ratio = (ch1<< 15) / ch0;
> > + /* convert to unscaled lux using the pointer to the table */
> > + p = (struct tsl2x7x_lux *) chip->tsl2x7x_device_lux;
> > + while (p->ratio != 0&& p->ratio< ratio)
> > + p++;
> > +
> > + if (p->ratio == 0) {
> > + lux = 0;
> > + } else {
> > + ch0lux = DIV_ROUND_UP((ch0 * p->ch0),
> > + tsl2X7X_als_gainadj[chip->tsl2x7x_settings.als_gain]);
> > + ch1lux = DIV_ROUND_UP((ch1 * p->ch1),
> > + tsl2X7X_als_gainadj[chip->tsl2x7x_settings.als_gain]);
> > + lux = ch0lux - ch1lux;
> > + }
> > +
> > + /* note: lux is 31 bit max at this point */
> > + if (ch1lux> ch0lux) {
> > + dev_dbg(&chip->client->dev, "ch1lux> ch0lux-return last value\n");
> > + ret = chip->als_cur_info.lux;
> > + goto out_unlock;
> > + }
> > +
> > + /* adjust for active time scale */
> > + if (chip->als_time_scale == 0)
> > + lux = 0;
> > + else
> > + lux = (lux + (chip->als_time_scale>> 1)) /
> > + chip->als_time_scale;
> > +
> > + /* adjust for active gain scale
> > + * The tsl2x7x_device_lux tables have a factor of 256 built-in.
> > + * User-specified gain provides a multiplier.
> > + * Apply user-specified gain before shifting right to retain precision.
> > + * Use 64 bits to avoid overflow on multiplication.
> > + * Then go back to 32 bits before division to avoid using div_u64().
> > + */
> > +
> > + lux64 = lux;
> > + lux64 = lux64 * chip->tsl2x7x_settings.als_gain_trim;
> > + lux64>>= 8;
> > + lux = lux64;
> > + lux = (lux + 500) / 1000;
> > +
> > + if (lux> TSL2X7X_LUX_CALC_OVER_FLOW) /* check for overflow */
> > + lux = TSL2X7X_LUX_CALC_OVER_FLOW;
> > +
> > + /* Update the structure with the latest lux. */
> > +return_max:
> > + chip->als_cur_info.lux = lux;
> > + ret = lux;
> > +
> > +out_unlock:
> > + mutex_unlock(&chip->als_mutex);
> > +
> > + return ret;
> > +}
> > +
> > +/**
> > + * tsl2x7x_get_prox() - Reads proximity data registers and updates
> > + * chip->prox_data.
> > + *
> > + * @indio_dev: pointer to IIO device
> > + */
> > +static int tsl2x7x_get_prox(struct iio_dev *indio_dev)
> > +{
> > + int i;
> > + int ret;
> > + u8 status;
> > + u8 chdata[2];
> > + struct tsl2X7X_chip *chip = iio_priv(indio_dev);
> > +
> > + if (mutex_trylock(&chip->prox_mutex) == 0) {
> > + dev_err(&chip->client->dev,
> > + "%s: Can't get prox mutex\n", __func__);
> > + return -EBUSY;
> > + }
> > +
> > + ret = tsl2x7x_i2c_read(chip->client,
> > + (TSL2X7X_CMD_REG | TSL2X7X_STATUS),&status);
> > + if (ret< 0) {
> > + dev_err(&chip->client->dev,
> > + "%s: i2c err=%d\n", __func__, ret);
> > + goto prox_poll_err;
> > + }
> > +
> > + switch (chip->id) {
> > + case tsl2571:
> > + case tsl2671:
> > + case tmd2671:
> > + case tsl2771:
> > + case tmd2771:
> > + if (!(status& TSL2X7X_STA_ADC_VALID))
> > + goto prox_poll_err;
> > + break;
> > + case tsl2572:
> > + case tsl2672:
> > + case tmd2672:
> > + case tsl2772:
> > + case tmd2772:
> > + if (!(status& TSL2X7X_STA_PRX_VALID))
> > + goto prox_poll_err;
> > + break;
> > + }
> > +
> > + for (i = 0; i< 2; i++) {
> > + ret = tsl2x7x_i2c_read(chip->client,
> > + (TSL2X7X_CMD_REG |
> > + (TSL2X7X_PRX_LO + i)),&chdata[i]);
> > + if (ret< 0)
> > + goto prox_poll_err;
> > + }
> > +
> > + chip->prox_data =
> > + le16_to_cpup((const __le16 *)&chdata[0]);
> > +
> > +prox_poll_err:
> > +
> > + mutex_unlock(&chip->prox_mutex);
> > +
> > + return chip->prox_data;
> > +}
> > +
> > +/**
> > + * tsl2x7x_defaults() - Populates the device nominal operating parameters
> > + * with those provided by a 'platform' data struct or
> > + * with prefined defaults.
> > + *
> > + * @chip: pointer to device structure.
> > + */
> > +static void tsl2x7x_defaults(struct tsl2X7X_chip *chip)
> > +{
> > + /* If Operational settings defined elsewhere.. */
> > + if (chip->pdata&& chip->pdata->platform_default_settings != 0)
> > + memcpy(&(chip->tsl2x7x_settings),
> > + chip->pdata->platform_default_settings,
> > + sizeof(tsl2x7x_default_settings));
> > + else
> > + memcpy(&(chip->tsl2x7x_settings),
> > + &tsl2x7x_default_settings,
> > + sizeof(tsl2x7x_default_settings));
> > +
> > + /* Load up the proper lux table. */
> > + if (chip->pdata&& chip->pdata->platform_lux_table[0].ratio != 0)
> > + memcpy(chip->tsl2x7x_device_lux,
> > + chip->pdata->platform_lux_table,
> > + sizeof(chip->pdata->platform_lux_table));
> > + else
> > + memcpy(chip->tsl2x7x_device_lux,
> > + (struct tsl2x7x_lux *)tsl2x7x_default_lux_table_group[chip->id],
> > + MAX_DEFAULT_TABLE_BYTES);
> > +}
> > +
> > +/**
> > + * tsl2x7x_als_calibrate() - Obtain single reading and calculate
> > + * the als_gain_trim.
> > + *
> > + * @indio_dev: pointer to IIO device
> > + */
> > +static int tsl2x7x_als_calibrate(struct iio_dev *indio_dev)
> > +{
> > + struct tsl2X7X_chip *chip = iio_priv(indio_dev);
> > + u8 reg_val;
> > + int gain_trim_val;
> > + int ret;
> > + int lux_val;
> > +
> > + ret = i2c_smbus_write_byte(chip->client,
> > + (TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
> > + if (ret< 0) {
> > + dev_err(&chip->client->dev,
> > + "%s: failed to write CNTRL register, ret=%d\n",
> > + __func__, ret);
> > + return ret;
> > + }
> > +
> > + reg_val = i2c_smbus_read_byte(chip->client);
> > + if ((reg_val& (TSL2X7X_CNTL_ADC_ENBL | TSL2X7X_CNTL_PWR_ON))
> > + != (TSL2X7X_CNTL_ADC_ENBL | TSL2X7X_CNTL_PWR_ON)) {
> > + dev_err(&chip->client->dev,
> > + "%s: failed: ADC not enabled\n", __func__);
> > + return -1;
> > + }
> > +
> > + ret = i2c_smbus_write_byte(chip->client,
> > + (TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
> > + if (ret< 0) {
> > + dev_err(&chip->client->dev,
> > + "%s: failed to write ctrl reg: ret=%d\n",
> > + __func__, ret);
> > + return ret;
> > + }
> > +
> > + reg_val = i2c_smbus_read_byte(chip->client);
> > + if ((reg_val& TSL2X7X_STA_ADC_VALID) != TSL2X7X_STA_ADC_VALID) {
> > + dev_err(&chip->client->dev,
> > + "%s: failed: STATUS - ADC not valid.\n", __func__);
> > + return -ENODATA;
> > + }
> > +
> > + lux_val = tsl2x7x_get_lux(indio_dev);
> > + if (lux_val< 0) {
> > + dev_err(&chip->client->dev,
> > + "%s: failed to get lux\n", __func__);
> > + return lux_val;
> > + }
> > +
> > + gain_trim_val = (((chip->tsl2x7x_settings.als_cal_target)
> > + * chip->tsl2x7x_settings.als_gain_trim) / lux_val);
> > + if ((gain_trim_val< 250) || (gain_trim_val> 4000))
> > + return -ERANGE;
> > +
> > + chip->tsl2x7x_settings.als_gain_trim = gain_trim_val;
> > + dev_info(&chip->client->dev,
> > + "%s als_calibrate completed\n", chip->client->name);
> > +
> > + return (int) gain_trim_val;
> > +}
> > +
> > +static int tsl2x7x_chip_on(struct iio_dev *indio_dev)
> > +{
> > + int i;
> > + int ret = 0;
> > + u8 *dev_reg;
> > + u8 utmp;
> > + int als_count;
> > + int als_time;
> > + struct tsl2X7X_chip *chip = iio_priv(indio_dev);
> > + u8 reg_val = 0;
> > +
> > + if (chip->pdata&& chip->pdata->power_on)
> > + chip->pdata->power_on(indio_dev);
> > +
> > + /* Non calculated parameters */
> > + chip->tsl2x7x_config[TSL2X7X_PRX_TIME] =
> > + chip->tsl2x7x_settings.prx_time;
> > + chip->tsl2x7x_config[TSL2X7X_WAIT_TIME] =
> > + chip->tsl2x7x_settings.wait_time;
> > + chip->tsl2x7x_config[TSL2X7X_PRX_CONFIG] =
> > + chip->tsl2x7x_settings.prox_config;
> > +
> > + chip->tsl2x7x_config[TSL2X7X_ALS_MINTHRESHLO] =
> > + (chip->tsl2x7x_settings.als_thresh_low)& 0xFF;
> > + chip->tsl2x7x_config[TSL2X7X_ALS_MINTHRESHHI] =
> > + (chip->tsl2x7x_settings.als_thresh_low>> 8)& 0xFF;
> > + chip->tsl2x7x_config[TSL2X7X_ALS_MAXTHRESHLO] =
> > + (chip->tsl2x7x_settings.als_thresh_high)& 0xFF;
> > + chip->tsl2x7x_config[TSL2X7X_ALS_MAXTHRESHHI] =
> > + (chip->tsl2x7x_settings.als_thresh_high>> 8)& 0xFF;
> > + chip->tsl2x7x_config[TSL2X7X_PERSISTENCE] =
> > + chip->tsl2x7x_settings.persistence;
> > +
> > + chip->tsl2x7x_config[TSL2X7X_PRX_COUNT] =
> > + chip->tsl2x7x_settings.prox_pulse_count;
> > + chip->tsl2x7x_config[TSL2X7X_PRX_MINTHRESHLO] =
> > + chip->tsl2x7x_settings.prox_thres_low;
> > + chip->tsl2x7x_config[TSL2X7X_PRX_MAXTHRESHLO] =
> > + chip->tsl2x7x_settings.prox_thres_high;
> > +
> > + /* and make sure we're not already on */
> > + if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING) {
> > + /* if forcing a register update - turn off, then on */
> > + dev_info(&chip->client->dev, "device is already enabled\n");
> > + return -EINVAL;
> > + }
> > +
> > + /* determine als integration regster */
> > + als_count = (chip->tsl2x7x_settings.als_time * 100 + 135) / 270;
> > + if (als_count == 0)
> > + als_count = 1; /* ensure at least one cycle */
> > +
> > + /* convert back to time (encompasses overrides) */
> > + als_time = (als_count * 27 + 5) / 10;
> > + chip->tsl2x7x_config[TSL2X7X_ALS_TIME] = 256 - als_count;
> > +
> > + /* Set the gain based on tsl2x7x_settings struct */
> > + chip->tsl2x7x_config[TSL2X7X_GAIN] =
> > + (chip->tsl2x7x_settings.als_gain |
> > + (TSL2X7X_mA100 | TSL2X7X_DIODE1)
> > + | ((chip->tsl2x7x_settings.prox_gain)<< 2));
> > +
> > + /* set chip struct re scaling and saturation */
> > + chip->als_saturation = als_count * 922; /* 90% of full scale */
> > + chip->als_time_scale = (als_time + 25) / 50;
> > +
> > + /* TSL2X7X Specific power-on / adc enable sequence
> > + * Power on the device 1st. */
> > + utmp = TSL2X7X_CNTL_PWR_ON;
> > + ret = i2c_smbus_write_byte_data(chip->client,
> > + TSL2X7X_CMD_REG | TSL2X7X_CNTRL, utmp);
> > + if (ret< 0) {
> > + dev_err(&chip->client->dev,
> > + "%s: failed on CNTRL reg.\n", __func__);
> > + return ret;
> > + }
> > +
> > + /* Use the following shadow copy for our delay before enabling ADC.
> > + * Write all the registers. */
> > + for (i = 0, dev_reg = chip->tsl2x7x_config;
> > + i< TSL2X7X_MAX_CONFIG_REG; i++) {
> > + ret = i2c_smbus_write_byte_data(chip->client,
> > + TSL2X7X_CMD_REG + i, *dev_reg++);
> > + if (ret< 0) {
> > + dev_err(&chip->client->dev,
> > + "%s: failed on write to reg %d.\n", __func__, i);
> > + return ret;
> > + }
> > + }
> > +
> > + udelay(3000); /* Power-on settling time */
> > +
> > + /* NOW enable the ADC
> > + * initialize the desired mode of operation */
> > + utmp = TSL2X7X_CNTL_PWR_ON |
> > + TSL2X7X_CNTL_ADC_ENBL |
> > + TSL2X7X_CNTL_PROX_DET_ENBL;
> > + ret = i2c_smbus_write_byte_data(chip->client,
> > + TSL2X7X_CMD_REG | TSL2X7X_CNTRL, utmp);
> > + if (ret< 0) {
> > + dev_err(&chip->client->dev,
> > + "%s: failed on 2nd CTRL reg.\n", __func__);
> > + return ret;
> > + }
> > +
> > + chip->tsl2x7x_chip_status = TSL2X7X_CHIP_WORKING;
> > +
> > + if (chip->tsl2x7x_settings.interrupts_en != 0) {
> > + dev_info(&chip->client->dev, "Setting Up Interrupt(s)\n");
> > +
> > + reg_val = TSL2X7X_CNTL_PWR_ON | TSL2X7X_CNTL_ADC_ENBL;
> > + if ((chip->tsl2x7x_settings.interrupts_en == 0x20) ||
> > + (chip->tsl2x7x_settings.interrupts_en == 0x30))
> > + reg_val |= TSL2X7X_CNTL_PROX_DET_ENBL;
> > +
> > + reg_val |= chip->tsl2x7x_settings.interrupts_en;
> > + ret = i2c_smbus_write_byte_data(chip->client,
> > + (TSL2X7X_CMD_REG | TSL2X7X_CNTRL), reg_val);
> > + if (ret< 0)
> > + dev_err(&chip->client->dev,
> > + "%s: failed in tsl2x7x_IOCTL_INT_SET.\n",
> > + __func__);
> > +
> > + /* Clear out any initial interrupts */
> > + ret = i2c_smbus_write_byte(chip->client,
> > + TSL2X7X_CMD_REG | TSL2X7X_CMD_SPL_FN |
> > + TSL2X7X_CMD_PROXALS_INT_CLR);
> > + if (ret< 0) {
> > + dev_err(&chip->client->dev,
> > + "%s: Failed to clear Int status\n",
> > + __func__);
> > + return ret;
> > + }
> > + }
> > +
> > + return ret;
> > +}
> > +
> > +static int tsl2x7x_chip_off(struct iio_dev *indio_dev)
> > +{
> > + int ret;
> > + struct tsl2X7X_chip *chip = iio_priv(indio_dev);
> > +
> > + /* turn device off */
> > + chip->tsl2x7x_chip_status = TSL2X7X_CHIP_SUSPENDED;
> > +
> > + ret = i2c_smbus_write_byte_data(chip->client,
> > + TSL2X7X_CMD_REG | TSL2X7X_CNTRL, 0x00);
> > +
> > + if (chip->pdata&& chip->pdata->power_off)
> > + chip->pdata->power_off(chip->client);
> > +
> > + return ret;
> > +}
> > +
> > +/**
> > + * tsl2x7x_invoke_change
> > + * @indio_dev: pointer to IIO device
> > + *
> > + * Obtain and lock both ALS and PROX resources,
> > + * determine and save device state (On/Off),
> > + * cycle device to implement updated parameter,
> > + * put device back into proper state, and unlock
> > + * resource.
> > + */
> > +int tsl2x7x_invoke_change(struct iio_dev *indio_dev)
> > +{
> > + struct tsl2X7X_chip *chip = iio_priv(indio_dev);
> > + int device_status = chip->tsl2x7x_chip_status;
> > +
> > + mutex_lock(&chip->als_mutex);
> > + mutex_lock(&chip->prox_mutex);
> > +
> > + if (device_status == TSL2X7X_CHIP_WORKING)
> > + tsl2x7x_chip_off(indio_dev);
> > +
> > + tsl2x7x_chip_on(indio_dev);
> > +
> > + if (device_status != TSL2X7X_CHIP_WORKING)
> > + tsl2x7x_chip_off(indio_dev);
> > +
> > + mutex_unlock(&chip->prox_mutex);
> > + mutex_unlock(&chip->als_mutex);
> > +
> > + return 0;
> > +}
> > +
> > +static
> > +void tsl2x7x_prox_calculate(int *data, int length,
> > + struct tsl2x7x_prox_stat *statP)
> > +{
> > + int i;
> > + int sample_sum;
> > + int tmp;
> > +
> > + if (length == 0)
> > + length = 1;
> > +
> > + sample_sum = 0;
> > + statP->min = INT_MAX;
> > + statP->max = INT_MIN;
> > + for (i = 0; i< length; i++) {
> > + sample_sum += data[i];
> > + statP->min = min(statP->min, data[i]);
> > + statP->max = max(statP->max, data[i]);
> > + }
> > +
> > + statP->mean = sample_sum / length;
> > + sample_sum = 0;
> > + for (i = 0; i< length; i++) {
> > + tmp = data[i] - statP->mean;
> > + sample_sum += tmp * tmp;
> > + }
> > + statP->stddev = int_sqrt((long)sample_sum)/length;
> > +}
> > +
> > +/**
> > + * tsl2x7x_prox_cal() - Calculates std. and sets thresholds.
> > + * @indio_dev: pointer to IIO device
> > + *
> > + * Calculates a standard deviation based on the samples,
> > + * and sets the threshold accordingly.
> > + */
> > +static void tsl2x7x_prox_cal(struct iio_dev *indio_dev)
> > +{
> > + int prox_history[MAX_SAMPLES_CAL + 1];
> > + int i;
> > + struct tsl2x7x_prox_stat prox_stat_data[2];
> > + struct tsl2x7x_prox_stat *calP;
> > + struct tsl2X7X_chip *chip = iio_priv(indio_dev);
> > + u8 tmp_irq_settings;
> > + u8 current_state = chip->tsl2x7x_chip_status;
> > +
> > + if (chip->tsl2x7x_settings.prox_max_samples_cal> MAX_SAMPLES_CAL) {
> > + dev_err(&chip->client->dev,
> > + "%s: max prox samples cal is too big: %d\n",
> > + __func__, chip->tsl2x7x_settings.prox_max_samples_cal);
> > + chip->tsl2x7x_settings.prox_max_samples_cal = MAX_SAMPLES_CAL;
> > + }
> > +
> > + /* have to stop to change settings */
> > + tsl2x7x_chip_off(indio_dev);
> > +
> > + /* Enable proximity detection save just in case prox not wanted yet*/
> > + tmp_irq_settings = chip->tsl2x7x_settings.interrupts_en;
> > + chip->tsl2x7x_settings.interrupts_en |= TSL2X7X_CNTL_PROX_INT_ENBL;
> > +
> > + /*turn on device if not already on*/
> > + tsl2x7x_chip_on(indio_dev);
> > +
> > + /*gather the samples*/
> > + for (i = 0; i< chip->tsl2x7x_settings.prox_max_samples_cal; i++) {
> > + mdelay(15);
> > + tsl2x7x_get_prox(indio_dev);
> > + prox_history[i] = chip->prox_data;
> > + dev_info(&chip->client->dev, "2 i=%d prox data= %d\n",
> > + i, chip->prox_data);
> > + }
> > +
> > + tsl2x7x_chip_off(indio_dev);
> > + calP =&prox_stat_data[PROX_STAT_CAL];
> > + tsl2x7x_prox_calculate(prox_history,
> > + chip->tsl2x7x_settings.prox_max_samples_cal, calP);
> > + chip->tsl2x7x_settings.prox_thres_high = (calP->max<< 1) - calP->mean;
> > +
> > + dev_info(&chip->client->dev, " cal min=%d mean=%d max=%d\n",
> > + calP->min, calP->mean, calP->max);
> > + dev_info(&chip->client->dev,
> > + "%s proximity threshold set to %d\n",
> > + chip->client->name, chip->tsl2x7x_settings.prox_thres_high);
> > +
> > + /* back to the way they were */
> > + chip->tsl2x7x_settings.interrupts_en = tmp_irq_settings;
> > + if (current_state == TSL2X7X_CHIP_WORKING)
> > + tsl2x7x_chip_on(indio_dev);
> > +}
> > +
> > +static ssize_t tsl2x7x_power_state_show(struct device *dev,
> > + struct device_attribute *attr, char *buf)
> > +{
> > + struct tsl2X7X_chip *chip = iio_priv(dev_get_drvdata(dev));
> > +
> > + return snprintf(buf, PAGE_SIZE, "%d\n", chip->tsl2x7x_chip_status);
> > +}
> > +
> > +static ssize_t tsl2x7x_power_state_store(struct device *dev,
> > + struct device_attribute *attr, const char *buf, size_t len)
> > +{
> > + struct iio_dev *indio_dev = dev_get_drvdata(dev);
> > + bool value;
> > +
> > + if (strtobool(buf,&value))
> > + return -EINVAL;
> > +
> > + if (value)
> > + tsl2x7x_chip_on(indio_dev);
> > + else
> > + tsl2x7x_chip_off(indio_dev);
> > +
> > + return len;
> > +}
> > +
> > +static ssize_t tsl2x7x_gain_available_show(struct device *dev,
> > + struct device_attribute *attr, char *buf)
> > +{
> > + struct tsl2X7X_chip *chip = iio_priv(dev_get_drvdata(dev));
> > +
> > + switch (chip->id) {
> > + case tsl2571:
> > + case tsl2671:
> > + case tmd2671:
> > + case tsl2771:
> > + case tmd2771:
> > + return snprintf(buf, PAGE_SIZE, "%s\n", "1 8 16 128");
> > + break;
> > + }
> > +
> > + return snprintf(buf, PAGE_SIZE, "%s\n", "1 8 16 120");
> > +}
> > +
> > +static ssize_t tsl2x7x_prox_gain_available_show(struct device *dev,
> > + struct device_attribute *attr, char *buf)
> > +{
> > + return snprintf(buf, PAGE_SIZE, "%s\n", "1 2 4 8");
> > +}
> > +
> > +static ssize_t tsl2x7x_als_time_show(struct device *dev,
> > + struct device_attribute *attr, char *buf)
> > +{
> > + struct tsl2X7X_chip *chip = iio_priv(dev_get_drvdata(dev));
> > + int y, z;
> > +
> > + y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.als_time) + 1;
> > + z = y * 2.72;
> > + y /= 1000;
> > + z %= 1000;
> > +
> > + return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
> > +}
> > +
> > +static ssize_t tsl2x7x_als_time_store(struct device *dev,
> > + struct device_attribute *attr, const char *buf, size_t len)
> > +{
> > + struct iio_dev *indio_dev = dev_get_drvdata(dev);
> > + struct tsl2X7X_chip *chip = iio_priv(dev_get_drvdata(dev));
> > + struct tsl2x7x_parse_result result;
> > +
> > + result.integer = 0;
> > + result.fract = 0;
> > +
> > + tsl2x7x_parse_buffer(buf,&result);
> > +
> > + result.fract /= 1000;
> > + result.fract /= 3;
> > + chip->tsl2x7x_settings.als_time =
> > + (TSL2X7X_MAX_TIMER_CNT - (u8)result.fract);
> > +
> > + dev_info(&chip->client->dev, "%s: als time = %d",
> > + __func__, chip->tsl2x7x_settings.als_time);
> > +
> > + tsl2x7x_invoke_change(indio_dev);
> > +
> > + return IIO_VAL_INT_PLUS_MICRO;
> > +}
> > +
> > +static IIO_CONST_ATTR(illuminance0_integration_time_available,
> > + ".00272 - .696");
> > +
> > +static ssize_t tsl2x7x_als_cal_target_show(struct device *dev,
> > + struct device_attribute *attr, char *buf)
> > +{
> > + struct tsl2X7X_chip *chip = iio_priv(dev_get_drvdata(dev));
> > +
> > + return snprintf(buf, PAGE_SIZE, "%d\n",
> > + chip->tsl2x7x_settings.als_cal_target);
> > +}
> > +
> > +static ssize_t tsl2x7x_als_cal_target_store(struct device *dev,
> > + struct device_attribute *attr, const char *buf, size_t len)
> > +{
> > + struct iio_dev *indio_dev = dev_get_drvdata(dev);
> > + struct tsl2X7X_chip *chip = iio_priv(dev_get_drvdata(dev));
> > + unsigned long value;
> > +
> > + if (kstrtoul(buf, 0,&value))
> > + return -EINVAL;
> > +
> > + if (value)
> > + chip->tsl2x7x_settings.als_cal_target = value;
> > +
> > + tsl2x7x_invoke_change(indio_dev);
> > +
> > + return len;
> > +}
> > +
> > +/* persistence settings */
> > +static ssize_t tsl2x7x_als_persistence_show(struct device *dev,
> > + struct device_attribute *attr, char *buf)
> > +{
> > + struct tsl2X7X_chip *chip = iio_priv(dev_get_drvdata(dev));
> > + int y, z, filter_delay;
> > +
> > + /* Determine integration time */
> > + y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.als_time) + 1;
> > + z = y * 2.72;
> > + filter_delay = z * (chip->tsl2x7x_settings.persistence& 0x0F);
> > + y = (filter_delay / 1000);
> > + z = (filter_delay % 1000);
> > +
> > + return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
> > +}
> > +
> > +static ssize_t tsl2x7x_als_persistence_store(struct device *dev,
> > + struct device_attribute *attr, const char *buf, size_t len)
> > +{
> > + struct iio_dev *indio_dev = dev_get_drvdata(dev);
> > + struct tsl2X7X_chip *chip = iio_priv(dev_get_drvdata(dev));
> > + struct tsl2x7x_parse_result result;
> > + int y, z, filter_delay;
> > +
> > + result.integer = 0;
> > + result.fract = 0;
> > + tsl2x7x_parse_buffer(buf,&result);
> > +
> > + result.fract /= 1000;
> > + y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.als_time) + 1;
> > + z = y * 2.72;
> > +
> > + filter_delay =
> > + DIV_ROUND_UP(((result.integer * 1000) + result.fract), z);
> > +
> > + chip->tsl2x7x_settings.persistence&= 0xF0;
> > + chip->tsl2x7x_settings.persistence |= (filter_delay& 0x0F);
> > +
> > + dev_info(&chip->client->dev, "%s: als persistence = %d",
> > + __func__, filter_delay);
> > +
> > + tsl2x7x_invoke_change(indio_dev);
> > +
> > + return IIO_VAL_INT_PLUS_MICRO;
> > +}
> > +
> > +static ssize_t tsl2x7x_prox_persistence_show(struct device *dev,
> > + struct device_attribute *attr, char *buf)
> > +{
> > + struct tsl2X7X_chip *chip = iio_priv(dev_get_drvdata(dev));
> > + int y, z, filter_delay;
> > +
> > + /* Determine integration time */
> > + y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.prx_time) + 1;
> > + z = y * 2.72;
> > + filter_delay = z * ((chip->tsl2x7x_settings.persistence& 0xF0)>> 4);
> > + y = (filter_delay / 1000);
> > + z = (filter_delay % 1000);
> > +
> > + return snprintf(buf, PAGE_SIZE, "%d.%03d\n", y, z);
> > +}
> > +
> > +static ssize_t tsl2x7x_prox_persistence_store(struct device *dev,
> > + struct device_attribute *attr, const char *buf, size_t len)
> > +{
> > + struct iio_dev *indio_dev = dev_get_drvdata(dev);
> > + struct tsl2X7X_chip *chip = iio_priv(dev_get_drvdata(dev));
> > + struct tsl2x7x_parse_result result;
> > + int y, z, filter_delay;
> > +
> > + result.integer = 0;
> > + result.fract = 0;
> > + tsl2x7x_parse_buffer(buf,&result);
> > +
> > + result.fract /= 1000;
> > + y = (TSL2X7X_MAX_TIMER_CNT - (u8)chip->tsl2x7x_settings.prx_time) + 1;
> > + z = y * 2.72;
> > +
> > + filter_delay =
> > + DIV_ROUND_UP(((result.integer * 1000) + result.fract), z);
> > +
> > + chip->tsl2x7x_settings.persistence&= 0x0F;
> > + chip->tsl2x7x_settings.persistence |= ((filter_delay<< 4)& 0xF0);
> > +
> > + dev_info(&chip->client->dev, "%s: prox persistence = %d",
> > + __func__, filter_delay);
> > +
> > + tsl2x7x_invoke_change(indio_dev);
> > +
> > + return IIO_VAL_INT_PLUS_MICRO;
> > +}
> > +
> > +
> > +static ssize_t tsl2x7x_do_calibrate(struct device *dev,
> > + struct device_attribute *attr, const char *buf, size_t len)
> > +{
> > + struct iio_dev *indio_dev = dev_get_drvdata(dev);
> > + bool value;
> > +
> > + if (strtobool(buf,&value))
> > + return -EINVAL;
> > +
> > + if (value)
> > + tsl2x7x_als_calibrate(indio_dev);
> > +
> > + tsl2x7x_invoke_change(indio_dev);
> > +
> > + return len;
> > +}
> > +
> > +static ssize_t tsl2x7x_luxtable_show(struct device *dev,
> > + struct device_attribute *attr, char *buf)
> > +{
> > + struct tsl2X7X_chip *chip = iio_priv(dev_get_drvdata(dev));
> > + int i = 0;
> > + int offset = 0;
> > +
> > + while (i< (TSL2X7X_MAX_LUX_TABLE_SIZE * 3)) {
> > + offset += snprintf(buf + offset, PAGE_SIZE, "%d,%d,%d,",
> > + chip->tsl2x7x_device_lux[i].ratio,
> > + chip->tsl2x7x_device_lux[i].ch0,
> > + chip->tsl2x7x_device_lux[i].ch1);
> > + if (chip->tsl2x7x_device_lux[i].ratio == 0) {
> > + /* We just printed the first "0" entry.
> > + * Now get rid of the extra "," and break. */
> > + offset--;
> > + break;
> > + }
> > + i++;
> > + }
> > +
> > + offset += snprintf(buf + offset, PAGE_SIZE, "\n");
> > + return offset;
> > +}
> > +
> > +static ssize_t tsl2x7x_luxtable_store(struct device *dev,
> > + struct device_attribute *attr, const char *buf, size_t len)
> > +{
> > + struct iio_dev *indio_dev = dev_get_drvdata(dev);
> > + struct tsl2X7X_chip *chip = iio_priv(dev_get_drvdata(dev));
> > + int value[ARRAY_SIZE(chip->tsl2x7x_device_lux)*3 + 1];
> > + int n;
> > +
> > + get_options(buf, ARRAY_SIZE(value), value);
> > +
> > + /* We now have an array of ints starting at value[1], and
> > + * enumerated by value[0].
> > + * We expect each group of three ints is one table entry,
> > + * and the last table entry is all 0.
> > + */
> > + n = value[0];
> > + if ((n % 3) || n< 6 ||
> > + n> ((ARRAY_SIZE(chip->tsl2x7x_device_lux) - 1) * 3)) {
> > + dev_info(dev, "LUX TABLE INPUT ERROR 1 Value[0]=%d\n", n);
> > + return -EINVAL;
> > + }
> > +
> > + if ((value[(n - 2)] | value[(n - 1)] | value[n]) != 0) {
> > + dev_info(dev, "LUX TABLE INPUT ERROR 2 Value[0]=%d\n", n);
> > + return -EINVAL;
> > + }
> > +
> > + if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING)
> > + tsl2x7x_chip_off(indio_dev);
> > +
> > + /* Zero out the table */
> > + memset(chip->tsl2x7x_device_lux, 0, sizeof(chip->tsl2x7x_device_lux));
> > + memcpy(chip->tsl2x7x_device_lux,&value[1], (value[0] * 4));
> > +
> > + tsl2x7x_invoke_change(indio_dev);
> > +
> > + return len;
> > +}
> > +
> > +static ssize_t tsl2x7x_do_prox_calibrate(struct device *dev,
> > + struct device_attribute *attr, const char *buf, size_t len)
> > +{
> > + struct iio_dev *indio_dev = dev_get_drvdata(dev);
> > + bool value;
> > +
> > + if (strtobool(buf,&value))
> > + return -EINVAL;
> > +
> > + if (value)
> > + tsl2x7x_prox_cal(indio_dev);
> > +
> > + tsl2x7x_invoke_change(indio_dev);
> > +
> > + return len;
> > +}
> > +
> > +static int tsl2x7x_read_interrupt_config(struct iio_dev *indio_dev,
> > + u64 event_code)
> > +{
> > + struct tsl2X7X_chip *chip = iio_priv(indio_dev);
> > + int ret;
> > +
> > + if (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code) == IIO_INTENSITY)
> > + ret = !!(chip->tsl2x7x_settings.interrupts_en& 0x10);
> > + else
> > + ret = !!(chip->tsl2x7x_settings.interrupts_en& 0x20);
> > +
> > + return ret;
> > +}
> > +
> > +static int tsl2x7x_write_interrupt_config(struct iio_dev *indio_dev,
> > + u64 event_code,
> > + int val)
> > +{
> > + struct tsl2X7X_chip *chip = iio_priv(indio_dev);
> > +
> > +
> > +
> > + if (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code) == IIO_INTENSITY) {
> > + if (val)
> > + chip->tsl2x7x_settings.interrupts_en |= 0x10;
> > + else
> > + chip->tsl2x7x_settings.interrupts_en&= 0x20;
> > + } else {
> > + if (val)
> > + chip->tsl2x7x_settings.interrupts_en |= 0x20;
> > + else
> > + chip->tsl2x7x_settings.interrupts_en&= 0x10;
> > + }
> > +
> > + tsl2x7x_invoke_change(indio_dev);
> > +
> > + return 0;
> > +}
> > +
> > +static int tsl2x7x_write_thresh(struct iio_dev *indio_dev,
> > + u64 event_code,
> > + int val)
> > +{
> > + struct tsl2X7X_chip *chip = iio_priv(indio_dev);
> > +
> > +
> > + if (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code) == IIO_INTENSITY) {
> > + switch (IIO_EVENT_CODE_EXTRACT_DIR(event_code)) {
> > + case IIO_EV_DIR_RISING:
> > + chip->tsl2x7x_settings.als_thresh_high = val;
> > + break;
> > + case IIO_EV_DIR_FALLING:
> > + chip->tsl2x7x_settings.als_thresh_low = val;
> > + break;
> > + default:
> > + return -EINVAL;
> > + }
> > + } else {
> > + switch (IIO_EVENT_CODE_EXTRACT_DIR(event_code)) {
> > + case IIO_EV_DIR_RISING:
> > + chip->tsl2x7x_settings.prox_thres_high = val;
> > + break;
> > + case IIO_EV_DIR_FALLING:
> > + chip->tsl2x7x_settings.prox_thres_low = val;
> > + break;
> > + default:
> > + return -EINVAL;
> > + }
> > + }
> > +
> > + tsl2x7x_invoke_change(indio_dev);
> > +
> > + return 0;
> > +}
> > +
> > +static int tsl2x7x_read_thresh(struct iio_dev *indio_dev,
> > + u64 event_code,
> > + int *val)
> > +{
> > + struct tsl2X7X_chip *chip = iio_priv(indio_dev);
> > +
> > + if (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code) == IIO_INTENSITY) {
> > + switch (IIO_EVENT_CODE_EXTRACT_DIR(event_code)) {
> > + case IIO_EV_DIR_RISING:
> > + *val = chip->tsl2x7x_settings.als_thresh_high;
> > + break;
> > + case IIO_EV_DIR_FALLING:
> > + *val = chip->tsl2x7x_settings.als_thresh_low;
> > + break;
> > + default:
> > + return -EINVAL;
> > + }
> > + } else {
> > + switch (IIO_EVENT_CODE_EXTRACT_DIR(event_code)) {
> > + case IIO_EV_DIR_RISING:
> > + *val = chip->tsl2x7x_settings.prox_thres_high;
> > + break;
> > + case IIO_EV_DIR_FALLING:
> > + *val = chip->tsl2x7x_settings.prox_thres_low;
> > + break;
> > + default:
> > + return -EINVAL;
> > + }
> > + }
> > +
> > + return 0;
> > +}
> > +
> > +static int tsl2x7x_read_raw(struct iio_dev *indio_dev,
> > + struct iio_chan_spec const *chan,
> > + int *val,
> > + int *val2,
> > + long mask)
> > +{
> > + int ret = -EINVAL;
> > + struct tsl2X7X_chip *chip = iio_priv(indio_dev);
> > +
> > + switch (mask) {
> > + case IIO_CHAN_INFO_RAW:
> > + switch (chan->type) {
> > + case IIO_LIGHT:
> > + tsl2x7x_get_lux(indio_dev);
> > + *val = chip->als_cur_info.lux;
> > + ret = IIO_VAL_INT;
> > + break;
> > + case IIO_INTENSITY:
> > + tsl2x7x_get_lux(indio_dev);
> > + if (chan->channel == 0)
> > + *val = chip->als_cur_info.als_ch0;
> > + else
> > + *val = chip->als_cur_info.als_ch1;
> > + ret = IIO_VAL_INT;
> > + break;
> > + case IIO_PROXIMITY:
> > + tsl2x7x_get_prox(indio_dev);
> > + *val = chip->prox_data;
> > + ret = IIO_VAL_INT;
> > + break;
> > + default:
> > + return -EINVAL;
> > + break;
> > + }
> > + break;
> > + case IIO_CHAN_INFO_CALIBSCALE:
> > + if (chan->type == IIO_LIGHT)
> > + *val =
> > + tsl2X7X_als_gainadj[chip->tsl2x7x_settings.als_gain];
> > + else
> > + *val =
> > + tsl2X7X_prx_gainadj[chip->tsl2x7x_settings.prox_gain];
> > + ret = IIO_VAL_INT;
> > + break;
> > + case IIO_CHAN_INFO_CALIBBIAS:
> > + *val = chip->tsl2x7x_settings.als_gain_trim;
> > + ret = IIO_VAL_INT;
> > + break;
> > +
> > + default:
> > + ret = -EINVAL;
> > + }
> > +
> > + return ret;
> > +}
> > +
> > +static int tsl2x7x_write_raw(struct iio_dev *indio_dev,
> > + struct iio_chan_spec const *chan,
> > + int val,
> > + int val2,
> > + long mask)
> > +{
> > + struct tsl2X7X_chip *chip = iio_priv(indio_dev);
> > +
> > + switch (mask) {
> > + case IIO_CHAN_INFO_CALIBSCALE:
> > + if (chan->type == IIO_INTENSITY) {
> > + switch (val) {
> > + case 1:
> > + chip->tsl2x7x_settings.als_gain = 0;
> > + break;
> > + case 8:
> > + chip->tsl2x7x_settings.als_gain = 1;
> > + break;
> > + case 16:
> > + chip->tsl2x7x_settings.als_gain = 2;
> > + break;
> > + case 120:
> > + switch (chip->id) {
> > + case tsl2572:
> > + case tsl2672:
> > + case tmd2672:
> > + case tsl2772:
> > + case tmd2772:
> > + return -EINVAL;
> > + break;
> > + }
> > + chip->tsl2x7x_settings.als_gain = 3;
> > + break;
> > + case 128:
> > + switch (chip->id) {
> > + case tsl2571:
> > + case tsl2671:
> > + case tmd2671:
> > + case tsl2771:
> > + case tmd2771:
> > + return -EINVAL;
> > + break;
> > + }
> > + chip->tsl2x7x_settings.als_gain = 3;
> > + break;
> > + default:
> > + return -EINVAL;
> > + }
> > + } else {
> > + switch (val) {
> > + case 1:
> > + chip->tsl2x7x_settings.prox_gain = 0;
> > + break;
> > + case 2:
> > + chip->tsl2x7x_settings.prox_gain = 1;
> > + break;
> > + case 4:
> > + chip->tsl2x7x_settings.prox_gain = 2;
> > + break;
> > + case 8:
> > + chip->tsl2x7x_settings.prox_gain = 3;
> > + break;
> > + default:
> > + return -EINVAL;
> > + }
> > + }
> > + break;
> > + case IIO_CHAN_INFO_CALIBBIAS:
> > + chip->tsl2x7x_settings.als_gain_trim = val;
> > + break;
> > +
> > + default:
> > + return -EINVAL;
> > + }
> > +
> > + tsl2x7x_invoke_change(indio_dev);
> > +
> > + return 0;
> > +}
> > +
> > +static DEVICE_ATTR(power_state, S_IRUGO | S_IWUSR,
> > + tsl2x7x_power_state_show, tsl2x7x_power_state_store);
> > +
> > +static DEVICE_ATTR(proximity_calibscale_available, S_IRUGO,
> > + tsl2x7x_prox_gain_available_show, NULL);
> > +
> > +static DEVICE_ATTR(illuminance0_calibscale_available, S_IRUGO,
> > + tsl2x7x_gain_available_show, NULL);
> > +
> > +static DEVICE_ATTR(in_illuminance0_integration_time, S_IRUGO | S_IWUSR,
> > + tsl2x7x_als_time_show, tsl2x7x_als_time_store);
> > +
> > +static DEVICE_ATTR(in_illuminance0_target_input, S_IRUGO | S_IWUSR,
> > + tsl2x7x_als_cal_target_show, tsl2x7x_als_cal_target_store);
> > +
> > +static DEVICE_ATTR(in_illuminance0_calibrate, S_IWUSR, NULL,
> > + tsl2x7x_do_calibrate);
> > +
> > +static DEVICE_ATTR(in_proximity_calibrate, S_IWUSR, NULL,
> > + tsl2x7x_do_prox_calibrate);
> > +
> > +static DEVICE_ATTR(in_illuminance0_lux_table, S_IRUGO | S_IWUSR,
> > + tsl2x7x_luxtable_show, tsl2x7x_luxtable_store);
> > +
> > +static DEVICE_ATTR(in_intensity0_thresh_period, S_IRUGO | S_IWUSR,
> > + tsl2x7x_als_persistence_show, tsl2x7x_als_persistence_store);
> > +
> > +static DEVICE_ATTR(in_proximity0_thresh_period, S_IRUGO | S_IWUSR,
> > + tsl2x7x_prox_persistence_show, tsl2x7x_prox_persistence_store);
> > +
> > +/* Use the default register values to identify the Taos device */
> > +static int tsl2x7x_device_id(unsigned char *id, int target)
> > +{
> > + switch (target) {
> > + case tsl2571:
> > + case tsl2671:
> > + case tsl2771:
> > + return ((*id& 0xf0) == TRITON_ID);
> > + break;
> > + case tmd2671:
> > + case tmd2771:
> > + return ((*id& 0xf0) == HALIBUT_ID);
> > + break;
> > + case tsl2572:
> > + case tsl2672:
> > + case tmd2672:
> > + case tsl2772:
> > + case tmd2772:
> > + return ((*id& 0xf0) == SWORDFISH_ID);
> > + break;
> > + }
> > +
> > + return -EINVAL;
> > +}
> > +
> > +static irqreturn_t tsl2x7x_event_handler(int irq, void *private)
> > +{
> > + struct iio_dev *indio_dev = private;
> > + struct tsl2X7X_chip *chip = iio_priv(indio_dev);
> > + s64 timestamp = iio_get_time_ns();
> > + int ret;
> > + u8 value;
> > +
> > + value = i2c_smbus_read_byte_data(chip->client,
> > + TSL2X7X_CMD_REG | TSL2X7X_STATUS);
> > +
> > + /* What type of interrupt do we need to process */
> > + if (value& TSL2X7X_STA_PRX_INTR) {
> > + tsl2x7x_get_prox(indio_dev); /* freshen data for ABI */
> > + iio_push_event(indio_dev,
> > + IIO_UNMOD_EVENT_CODE(IIO_PROXIMITY,
> > + 0,
> > + IIO_EV_TYPE_THRESH,
> > + IIO_EV_DIR_EITHER),
> > + timestamp);
> > + }
> > +
> > + if (value& TSL2X7X_STA_ALS_INTR) {
> > + tsl2x7x_get_lux(indio_dev); /* freshen data for ABI */
> > + iio_push_event(indio_dev,
> > + IIO_UNMOD_EVENT_CODE(IIO_LIGHT,
> > + 0,
> > + IIO_EV_TYPE_THRESH,
> > + IIO_EV_DIR_EITHER),
> > + timestamp);
> > + }
> > + /* Clear interrupt now that we have handled it. */
> > + ret = i2c_smbus_write_byte(chip->client,
> > + TSL2X7X_CMD_REG | TSL2X7X_CMD_SPL_FN |
> > + TSL2X7X_CMD_PROXALS_INT_CLR);
> > + if (ret< 0)
> > + dev_err(&chip->client->dev,
> > + "%s: Failed to clear irq from event handler. err = %d\n",
> > + __func__, ret);
> > +
> > + return IRQ_HANDLED;
> > +}
> > +
> > +static struct attribute *tsl2x7x_ALS_device_attrs[] = {
> > + &dev_attr_power_state.attr,
> > + &dev_attr_illuminance0_calibscale_available.attr,
> > + &dev_attr_in_illuminance0_integration_time.attr,
> > + &iio_const_attr_illuminance0_integration_time_available.dev_attr.attr,
> > + &dev_attr_in_illuminance0_target_input.attr,
> > + &dev_attr_in_illuminance0_calibrate.attr,
> > + &dev_attr_in_illuminance0_lux_table.attr,
> > + NULL
> > +};
> > +
> > +static struct attribute *tsl2x7x_PRX_device_attrs[] = {
> > + &dev_attr_power_state.attr,
> > + &dev_attr_in_proximity_calibrate.attr,
> > + NULL
> > +};
> > +
> > +static struct attribute *tsl2x7x_ALSPRX_device_attrs[] = {
> > + &dev_attr_power_state.attr,
> > + &dev_attr_illuminance0_calibscale_available.attr,
> > + &dev_attr_in_illuminance0_integration_time.attr,
> > + &iio_const_attr_illuminance0_integration_time_available.dev_attr.attr,
> > + &dev_attr_in_illuminance0_target_input.attr,
> > + &dev_attr_in_illuminance0_calibrate.attr,
> > + &dev_attr_in_illuminance0_lux_table.attr,
> > + &dev_attr_in_proximity_calibrate.attr,
> > + NULL
> > +};
> > +
> > +static struct attribute *tsl2x7x_PRX2_device_attrs[] = {
> > + &dev_attr_power_state.attr,
> > + &dev_attr_in_proximity_calibrate.attr,
> > + &dev_attr_proximity_calibscale_available.attr,
> > + NULL
> > +};
> > +
> > +static struct attribute *tsl2x7x_ALSPRX2_device_attrs[] = {
> > + &dev_attr_power_state.attr,
> > + &dev_attr_illuminance0_calibscale_available.attr,
> > + &dev_attr_in_illuminance0_integration_time.attr,
> > + &iio_const_attr_illuminance0_integration_time_available.dev_attr.attr,
> in_illuminance0_integration_time_available please. Also that one
> > + &dev_attr_in_illuminance0_target_input.attr,
> > + &dev_attr_in_illuminance0_calibrate.attr,
> > + &dev_attr_in_illuminance0_lux_table.attr,
> > + &dev_attr_in_proximity_calibrate.attr,
> > + &dev_attr_proximity_calibscale_available.attr,
> > + NULL
> > +};
> > +
> > +static struct attribute *tsl2X7X_ALS_event_attrs[] = {
> > + &dev_attr_in_intensity0_thresh_period.attr,
> > + NULL,
> > +};
> > +static struct attribute *tsl2X7X_PRX_event_attrs[] = {
> > + &dev_attr_in_proximity0_thresh_period.attr,
> > + NULL,
> > +};
> > +
> > +static struct attribute *tsl2X7X_ALSPRX_event_attrs[] = {
> > + &dev_attr_in_intensity0_thresh_period.attr,
> > + &dev_attr_in_proximity0_thresh_period.attr,
> > + NULL,
> > +};
> > +
> > +static const struct attribute_group tsl2X7X_device_attr_group_tbl[] = {
> > + [ALS] = {
> > + .attrs = tsl2x7x_ALS_device_attrs,
> > + },
> > + [PRX] = {
> > + .attrs = tsl2x7x_PRX_device_attrs,
> > + },
> > + [ALSPRX] = {
> > + .attrs = tsl2x7x_ALSPRX_device_attrs,
> > + },
> > + [PRX2] = {
> > + .attrs = tsl2x7x_PRX2_device_attrs,
> > + },
> > + [ALSPRX2] = {
> > + .attrs = tsl2x7x_ALSPRX2_device_attrs,
> > + },
> > +};
> > +
> > +static struct attribute_group tsl2X7X_event_attr_group_tbl[] = {
> > + [ALS] = {
> > + .attrs = tsl2X7X_ALS_event_attrs,
> > + .name = "events",
> > + },
> > + [PRX] = {
> > + .attrs = tsl2X7X_PRX_event_attrs,
> > + .name = "events",
> > + },
> > + [ALSPRX] = {
> > + .attrs = tsl2X7X_ALSPRX_event_attrs,
> > + .name = "events",
> > + },
> > +};
> > +
> > +static const struct iio_info tsl2X7X_device_info[] = {
> > + [ALS] = {
> > + .attrs =&tsl2X7X_device_attr_group_tbl[ALS],
> > + .event_attrs =&tsl2X7X_event_attr_group_tbl[ALS],
> > + .driver_module = THIS_MODULE,
> > + .read_raw =&tsl2x7x_read_raw,
> > + .write_raw =&tsl2x7x_write_raw,
> > + .read_event_value =&tsl2x7x_read_thresh,
> > + .write_event_value =&tsl2x7x_write_thresh,
> > + .read_event_config =&tsl2x7x_read_interrupt_config,
> > + .write_event_config =&tsl2x7x_write_interrupt_config,
> > + },
> > + [PRX] = {
> > + .attrs =&tsl2X7X_device_attr_group_tbl[PRX],
> > + .event_attrs =&tsl2X7X_event_attr_group_tbl[PRX],
> > + .driver_module = THIS_MODULE,
> > + .read_raw =&tsl2x7x_read_raw,
> > + .write_raw =&tsl2x7x_write_raw,
> > + .read_event_value =&tsl2x7x_read_thresh,
> > + .write_event_value =&tsl2x7x_write_thresh,
> > + .read_event_config =&tsl2x7x_read_interrupt_config,
> > + .write_event_config =&tsl2x7x_write_interrupt_config,
> > + },
> > + [ALSPRX] = {
> > + .attrs =&tsl2X7X_device_attr_group_tbl[ALSPRX],
> > + .event_attrs =&tsl2X7X_event_attr_group_tbl[ALSPRX],
> > + .driver_module = THIS_MODULE,
> > + .read_raw =&tsl2x7x_read_raw,
> > + .write_raw =&tsl2x7x_write_raw,
> > + .read_event_value =&tsl2x7x_read_thresh,
> > + .write_event_value =&tsl2x7x_write_thresh,
> > + .read_event_config =&tsl2x7x_read_interrupt_config,
> > + .write_event_config =&tsl2x7x_write_interrupt_config,
> > + },
> > + [PRX2] = {
> > + .attrs =&tsl2X7X_device_attr_group_tbl[PRX2],
> > + .event_attrs =&tsl2X7X_event_attr_group_tbl[PRX],
> > + .driver_module = THIS_MODULE,
> > + .read_raw =&tsl2x7x_read_raw,
> > + .write_raw =&tsl2x7x_write_raw,
> > + .read_event_value =&tsl2x7x_read_thresh,
> > + .write_event_value =&tsl2x7x_write_thresh,
> > + .read_event_config =&tsl2x7x_read_interrupt_config,
> > + .write_event_config =&tsl2x7x_write_interrupt_config,
> > + },
> > + [ALSPRX2] = {
> > + .attrs =&tsl2X7X_device_attr_group_tbl[ALSPRX2],
> > + .event_attrs =&tsl2X7X_event_attr_group_tbl[ALSPRX],
> > + .driver_module = THIS_MODULE,
> > + .read_raw =&tsl2x7x_read_raw,
> > + .write_raw =&tsl2x7x_write_raw,
> > + .read_event_value =&tsl2x7x_read_thresh,
> > + .write_event_value =&tsl2x7x_write_thresh,
> > + .read_event_config =&tsl2x7x_read_interrupt_config,
> > + .write_event_config =&tsl2x7x_write_interrupt_config,
> > + },
> > +};
> > +
> > +static const struct tsl2x7x_chip_info tsl2x7x_chip_info_tbl[] = {
> > + [ALS] = {
> > + .channel = {
> > + {
> > + .type = IIO_LIGHT,
> > + .indexed = 1,
> > + .channel = 0,
> > + .info_mask = IIO_CHAN_INFO_PROCESSED_SEPARATE_BIT,
> > + }, {
> > + .type = IIO_INTENSITY,
> > + .indexed = 1,
> > + .channel = 0,
> > + .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
> > + IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |
> > + IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,
> > + .event_mask = TSL2X7X_EVENT_MASK
> > + }, {
> > + .type = IIO_INTENSITY,
> > + .indexed = 1,
> > + .channel = 1,
> > + },
> > + },
> > + .chan_table_elements = 3,
> > + .info =&tsl2X7X_device_info[ALS],
> > + },
> > + [PRX] = {
> > + .channel = {
> > + {
> > + .type = IIO_PROXIMITY,
> > + .indexed = 1,
> > + .channel = 0,
> > + .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT,
> > + .event_mask = TSL2X7X_EVENT_MASK
> > + },
> > + },
> > + .chan_table_elements = 1,
> > + .info =&tsl2X7X_device_info[PRX],
> > + },
> > + [ALSPRX] = {
> > + .channel = {
> > + {
> > + .type = IIO_LIGHT,
> > + .indexed = 1,
> > + .channel = 0,
> > + .info_mask = IIO_CHAN_INFO_PROCESSED_SEPARATE_BIT
> > + }, {
> > + .type = IIO_INTENSITY,
> > + .indexed = 1,
> > + .channel = 0,
> > + .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
> > + IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |
> > + IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,
> > + .event_mask = TSL2X7X_EVENT_MASK
> > + }, {
> > + .type = IIO_INTENSITY,
> > + .indexed = 1,
> > + .channel = 1,
> > + .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT,
> > + }, {
> > + .type = IIO_PROXIMITY,
> > + .indexed = 1,
> > + .channel = 0,
> > + .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT,
> > + .event_mask = TSL2X7X_EVENT_MASK
> > + },
> > + },
> > + .chan_table_elements = 4,
> > + .info =&tsl2X7X_device_info[ALSPRX],
> > + },
> > + [PRX2] = {
> > + .channel = {
> > + {
> > + .type = IIO_PROXIMITY,
> > + .indexed = 1,
> > + .channel = 0,
> > + .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
> > + IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT,
> > + .event_mask = TSL2X7X_EVENT_MASK
> > + },
> > + },
> > + .chan_table_elements = 1,
> > + .info =&tsl2X7X_device_info[PRX2],
> > + },
> > + [ALSPRX2] = {
> > + .channel = {
> > + {
> > + .type = IIO_LIGHT,
> > + .indexed = 1,
> > + .channel = 0,
> > + .info_mask = IIO_CHAN_INFO_PROCESSED_SEPARATE_BIT,
> > + }, {
> > + .type = IIO_INTENSITY,
> > + .indexed = 1,
> > + .channel = 0,
> > + .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
> > + IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |
> > + IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,
> > + .event_mask = TSL2X7X_EVENT_MASK
> > + }, {
> > + .type = IIO_INTENSITY,
> > + .indexed = 1,
> > + .channel = 1,
> > + .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT,
> > + }, {
> > + .type = IIO_PROXIMITY,
> > + .indexed = 1,
> > + .channel = 0,
> > + .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
> > + IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT,
> > + .event_mask = TSL2X7X_EVENT_MASK
> > + },
> > + },
> > + .chan_table_elements = 4,
> > + .info =&tsl2X7X_device_info[ALSPRX2],
> > + },
> > +};
> > +
> > +static int __devinit tsl2x7x_probe(struct i2c_client *clientp,
> > + const struct i2c_device_id *id)
> > +{
> > + int ret;
> > + unsigned char device_id;
> > + struct iio_dev *indio_dev;
> > + struct tsl2X7X_chip *chip;
> > +
> > + indio_dev = iio_allocate_device(sizeof(*chip));
> > + if (!indio_dev)
> > + return -ENOMEM;
> > +
> > + chip = iio_priv(indio_dev);
> > + chip->client = clientp;
> > + i2c_set_clientdata(clientp, indio_dev);
> > +
> > + ret = tsl2x7x_i2c_read(chip->client,
> > + TSL2X7X_CHIPID,&device_id);
> > + if (ret< 0)
> > + goto fail1;
> > +
> > + if ((!tsl2x7x_device_id(&device_id, id->driver_data)) ||
> > + (tsl2x7x_device_id(&device_id, id->driver_data) == -EINVAL)) {
> > + dev_info(&chip->client->dev,
> > + "%s: i2c device found does not match expected id\n",
> > + __func__);
> > + goto fail1;
> > + }
> > +
> > + ret = i2c_smbus_write_byte(clientp, (TSL2X7X_CMD_REG | TSL2X7X_CNTRL));
> > + if (ret< 0) {
> > + dev_err(&clientp->dev, "%s: write to cmd reg failed. err = %d\n",
> > + __func__, ret);
> > + goto fail1;
> > + }
> > +
> > + /* ALS and PROX functions can be invoked via user space poll
> > + * or H/W interrupt. If busy return last sample. */
> > + mutex_init(&chip->als_mutex);
> > + mutex_init(&chip->prox_mutex);
> > +
> > + chip->tsl2x7x_chip_status = TSL2X7X_CHIP_UNKNOWN;
> > + chip->pdata = clientp->dev.platform_data;
> > + chip->id = id->driver_data;
> > + chip->chip_info =
> > + &tsl2x7x_chip_info_tbl[device_channel_config[id->driver_data]];
> > +
> > + indio_dev->info = chip->chip_info->info;
> > + indio_dev->dev.parent =&clientp->dev;
> > + indio_dev->modes = INDIO_DIRECT_MODE;
> > + indio_dev->name = chip->client->name;
> > + indio_dev->channels = chip->chip_info->channel;
> > + indio_dev->num_channels = chip->chip_info->chan_table_elements;
> > +
> > + if (clientp->irq) {
> > + ret = request_threaded_irq(clientp->irq,
> > + NULL,
> > + &tsl2x7x_event_handler,
> > + IRQF_TRIGGER_RISING | IRQF_ONESHOT,
> > + "TSL2X7X_event",
> > + indio_dev);
> > + if (ret) {
> > + dev_err(&clientp->dev,
> > + "%s: irq request failed", __func__);
> > + goto fail2;
> > + }
> > + }
> > +
> > + /* Load up the defaults */
> > + tsl2x7x_defaults(chip);
> > + /* Make sure the chip is on */
> > + tsl2x7x_chip_on(indio_dev);
> > +
> > + ret = iio_device_register(indio_dev);
> > + if (ret) {
> > + dev_err(&clientp->dev,
> > + "%s: iio registration failed\n", __func__);
> > + goto fail1;
> > + }
> > +
> > + dev_info(&clientp->dev, "%s Light sensor found.\n", id->name);
> > +
> > + return 0;
> > +
> > +fail1:
> > + if (clientp->irq)
> > + free_irq(clientp->irq, indio_dev);
> > +fail2:
> > + iio_free_device(indio_dev);
> > +
> > + return ret;
> > +}
> > +
> > +static int tsl2x7x_suspend(struct device *dev)
> > +{
> > + struct iio_dev *indio_dev = dev_get_drvdata(dev);
> > + struct tsl2X7X_chip *chip = iio_priv(indio_dev);
> > + int ret = 0;
> > +
> > + if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_WORKING) {
> > + ret = tsl2x7x_chip_off(indio_dev);
> > + chip->tsl2x7x_chip_status = TSL2X7X_CHIP_SUSPENDED;
> > + }
> > +
> > + if (chip->pdata&& chip->pdata->platform_power) {
> > + pm_message_t pmm = {PM_EVENT_SUSPEND};
> > + chip->pdata->platform_power(dev, pmm);
> > + }
> > +
> > + return ret;
> > +}
> > +
> > +static int tsl2x7x_resume(struct device *dev)
> > +{
> > + struct iio_dev *indio_dev = dev_get_drvdata(dev);
> > + struct tsl2X7X_chip *chip = iio_priv(indio_dev);
> > + int ret = 0;
> > +
> > + if (chip->pdata&& chip->pdata->platform_power) {
> > + pm_message_t pmm = {PM_EVENT_RESUME};
> > + chip->pdata->platform_power(dev, pmm);
> > + }
> > +
> > + if (chip->tsl2x7x_chip_status == TSL2X7X_CHIP_SUSPENDED)
> > + ret = tsl2x7x_chip_on(indio_dev);
> > +
> > + return ret;
> > +}
> > +
> > +static int __devexit tsl2x7x_remove(struct i2c_client *client)
> > +{
> > + struct tsl2X7X_chip *chip = i2c_get_clientdata(client);
> > + struct iio_dev *indio_dev = iio_priv_to_dev(chip);
> > +
> > + tsl2x7x_chip_off(indio_dev);
> > +
> > + iio_device_unregister(indio_dev);
> > + if (client->irq)
> > + free_irq(client->irq, chip->client->name);
> > +
> > + iio_free_device(indio_dev);
> > +
> > + return 0;
> > +}
> > +
> > +static struct i2c_device_id tsl2x7x_idtable[] = {
> > + { "tsl2571", tsl2571 },
> > + { "tsl2671", tsl2671 },
> > + { "tmd2671", tmd2671 },
> > + { "tsl2771", tsl2771 },
> > + { "tmd2771", tmd2771 },
> > + { "tsl2572", tsl2572 },
> > + { "tsl2672", tsl2672 },
> > + { "tmd2672", tmd2672 },
> > + { "tsl2772", tsl2772 },
> > + { "tmd2772", tmd2772 },
> > + {}
> > +};
> > +
> > +MODULE_DEVICE_TABLE(i2c, tsl2x7x_idtable);
> > +
> > +static const struct dev_pm_ops tsl2x7x_pm_ops = {
> > + .suspend = tsl2x7x_suspend,
> > + .resume = tsl2x7x_resume,
> > +};
> > +
> > +/* Driver definition */
> > +static struct i2c_driver tsl2x7x_driver = {
> > + .driver = {
> > + .name = "tsl2x7x",
> > + .pm =&tsl2x7x_pm_ops,
> > + },
> > + .id_table = tsl2x7x_idtable,
> > + .probe = tsl2x7x_probe,
> > + .remove = __devexit_p(tsl2x7x_remove),
> > +};
> > +
> > +module_i2c_driver(tsl2x7x_driver);
> > +
> > +MODULE_AUTHOR("J. August Brenner<jbrenner@...sinc.com>");
> > +MODULE_DESCRIPTION("TAOS tsl2x7x ambient and proximity light sensor driver");
> > +MODULE_LICENSE("GPL");
> > --
> > 1.7.4.1
> >
> > --
> > To unsubscribe from this list: send the line "unsubscribe linux-iio" in
> > the body of a message to majordomo@...r.kernel.org
> > More majordomo info at http://vger.kernel.org/majordomo-info.html
>
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