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Second round of new IIO drivers, features and cleanups for the 3.18 cycle.

Browse Source 
New drivers and part support
 * Bosch bmg160 Gyroscope driver
 * Dyna-Image al3320a ambient light sensor driver
 * Bosh bmi055 gyroscope part driver (accelerometer part supported by bmc150)
 * isl29018 - add support for isl29023 and isl29035
 * kxcjk-1013 - add support for kxcj9-1008 and kxtj2-1009
 * bmc150 - additional part support (BMI055 accelerometer part, BMA255,
   BMA222E, BMA250E and BMA280).  Different resolutions but otherwise similar
   parts.
 * bma180 - add BMA250 (note different from the BMA250E support above despite
   the naming).  A lot of driver reworking lead up to this - described below.
 
 New features
 * kxcjk1013 - add threshold event support.
 * rockchip - document DT bindings.
 * isl29018 - ACPI support
 * bma180 - enable use without IRQ
 
 Cleanups
 * Tree wide - drop owner field assignment if using the module_platform_driver
   helper as that assigns it anyway.
 * kxcjk1013 - drop a redundant assignment of the current range and fix a
   a defined but not used warning.
 * inv_mpu6050 - Remove an unnecessary cast form a void pointer.
 * rockchip - drop and unused variable.
 * at91_adc - make a local function static.
 * st-sensors-core - correctly handle an error in setting in
   st_sensors_set_drdy_int_pin
 * isl29018 - typo fix
 * bmc150 - fix incorrect scale value for 16G range (Driver new this cycle)
 * bmc150 - fix issues when CONFIG_PM_RUNTIME not set (Driver new this cycle)
 * ad7606 - line length tidy up.
 * bmg160 - set power state only if PM_RUNTIME is defined.
 * ak8975 - fix some unnecessary casting between char * and const char *
 * bma180 - prefix remaining bits and bobs with bma180_ and ensure consistent.
          - use a bool instead of an int for state (as its either on or off).
          - expose the temperature channel
          - statically allocate buffers to avoid need for update_scan_mode
            callback.
          - refactor to allow futher chip variants including support for part
            specific config and disable code + different resolutions.
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Merge tag 'iio-for-3.18b' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-next

Jonathan writes:

Second round of new IIO drivers, features and cleanups for the 3.18 cycle.

New drivers and part support
* Bosch bmg160 Gyroscope driver
* Dyna-Image al3320a ambient light sensor driver
* Bosh bmi055 gyroscope part driver (accelerometer part supported by bmc150)
* isl29018 - add support for isl29023 and isl29035
* kxcjk-1013 - add support for kxcj9-1008 and kxtj2-1009
* bmc150 - additional part support (BMI055 accelerometer part, BMA255,
  BMA222E, BMA250E and BMA280).  Different resolutions but otherwise similar
  parts.
* bma180 - add BMA250 (note different from the BMA250E support above despite
  the naming).  A lot of driver reworking lead up to this - described below.

New features
* kxcjk1013 - add threshold event support.
* rockchip - document DT bindings.
* isl29018 - ACPI support
* bma180 - enable use without IRQ

Cleanups
* Tree wide - drop owner field assignment if using the module_platform_driver
  helper as that assigns it anyway.
* kxcjk1013 - drop a redundant assignment of the current range and fix a
  a defined but not used warning.
* inv_mpu6050 - Remove an unnecessary cast form a void pointer.
* rockchip - drop and unused variable.
* at91_adc - make a local function static.
* st-sensors-core - correctly handle an error in setting in
  st_sensors_set_drdy_int_pin
* isl29018 - typo fix
* bmc150 - fix incorrect scale value for 16G range (Driver new this cycle)
* bmc150 - fix issues when CONFIG_PM_RUNTIME not set (Driver new this cycle)
* ad7606 - line length tidy up.
* bmg160 - set power state only if PM_RUNTIME is defined.
* ak8975 - fix some unnecessary casting between char * and const char *
* bma180 - prefix remaining bits and bobs with bma180_ and ensure consistent.
         - use a bool instead of an int for state (as its either on or off).
         - expose the temperature channel
         - statically allocate buffers to avoid need for update_scan_mode
           callback.
         - refactor to allow futher chip variants including support for part
           specific config and disable code + different resolutions.
This commit is contained in:
Greg Kroah-Hartman 2014-09-19 15:21:21 -07:00
commit 27f5a85fb5
37 changed files with 2768 additions and 343 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
Documentation/ABI/testing/sysfs-bus-iio-gyro-bmg160 Normal file
View File

@ -0,0 +1,7 @@
What: /sys/bus/iio/devices/triggerX/name = "bmg160-any-motion-devX"
KernelVersion: 3.17
Contact: linux-iio@vger.kernel.org
Description:
The BMG160 gyro kernel module provides an additional trigger,
which sets driver in a mode, where data is pushed to the buffer
only when there is any motion.

24
Documentation/devicetree/bindings/iio/adc/rockchip-saradc.txt Normal file
View File

@ -0,0 +1,24 @@
Rockchip Successive Approximation Register (SAR) A/D Converter bindings
Required properties:
- compatible: Should be "rockchip,saradc"
- reg: physical base address of the controller and length of memory mapped
region.
- interrupts: The interrupt number to the cpu. The interrupt specifier format
depends on the interrupt controller.
- clocks: Must contain an entry for each entry in clock-names.
- clock-names: Shall be "saradc" for the converter-clock, and "apb_pclk" for
the peripheral clock.
- vref-supply: The regulator supply ADC reference voltage.
- #io-channel-cells: Should be 1, see ../iio-bindings.txt
Example:
saradc: saradc@2006c000 {
compatible = "rockchip,saradc";
reg = <0x2006c000 0x100>;
interrupts = <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&cru SCLK_SARADC>, <&cru PCLK_SARADC>;
clock-names = "saradc", "apb_pclk";
#io-channel-cells = <1>;
vref-supply = <&vcc18>;
};

13
drivers/iio/accel/Kconfig
View File

@ -6,13 +6,13 @@
menu "Accelerometers"
config BMA180
tristate "Bosch BMA180 3-Axis Accelerometer Driver"
tristate "Bosch BMA180/BMA250 3-Axis Accelerometer Driver"
depends on I2C
select IIO_BUFFER
select IIO_TRIGGERED_BUFFER
help
Say Y here if you want to build a driver for the Bosch BMA180
triaxial acceleration sensor.
Say Y here if you want to build a driver for the Bosch BMA180 or
BMA250 triaxial acceleration sensor.
To compile this driver as a module, choose M here: the
module will be called bma180.
@ -23,7 +23,9 @@ config BMC150_ACCEL
select IIO_BUFFER
select IIO_TRIGGERED_BUFFER
help
Say yes here to build support for the Bosch BMC150 accelerometer.
Say yes here to build support for the following Bosch accelerometers:
BMC150, BMI055, BMA250E, BMA222E, BMA255, BMA280.
Currently this only supports the device via an i2c interface.
This is a combo module with both accelerometer and magnetometer.
@ -97,7 +99,8 @@ config KXCJK1013
select IIO_TRIGGERED_BUFFER
help
Say Y here if you want to build a driver for the Kionix KXCJK-1013
triaxial acceleration sensor.
triaxial acceleration sensor. This driver also supports KXCJ9-1008
and KXTJ2-1009.
To compile this driver as a module, choose M here: the module will
be called kxcjk-1013.

446
drivers/iio/accel/bma180.c
View File

@ -3,9 +3,15 @@
*
* Copyright 2013 Oleksandr Kravchenko <x0199363@ti.com>
*
* Support for BMA250 (c) Peter Meerwald <pmeerw@pmeerw.net>
*
* This file is subject to the terms and conditions of version 2 of
* the GNU General Public License. See the file COPYING in the main
* directory of this archive for more details.
*
* SPI is not supported by driver
* BMA180: 7-bit I2C slave address 0x40 or 0x41
* BMA250: 7-bit I2C slave address 0x18 or 0x19
*/
#include <linux/module.h>
@ -26,9 +32,37 @@
#define BMA180_DRV_NAME "bma180"
#define BMA180_IRQ_NAME "bma180_event"
enum {
BMA180,
BMA250,
};
struct bma180_data;
struct bma180_part_info {
const struct iio_chan_spec *channels;
unsigned num_channels;
const int *scale_table;
unsigned num_scales;
const int *bw_table;
unsigned num_bw;
u8 int_reset_reg, int_reset_mask;
u8 sleep_reg, sleep_mask;
u8 bw_reg, bw_mask;
u8 scale_reg, scale_mask;
u8 power_reg, power_mask, lowpower_val;
u8 int_enable_reg, int_enable_mask;
u8 softreset_reg;
int (*chip_config)(struct bma180_data *data);
void (*chip_disable)(struct bma180_data *data);
};
/* Register set */
#define BMA180_CHIP_ID 0x00 /* Need to distinguish BMA180 from other */
#define BMA180_ACC_X_LSB 0x02 /* First of 6 registers of accel data */
#define BMA180_TEMP 0x08
#define BMA180_CTRL_REG0 0x0d
#define BMA180_RESET 0x10
#define BMA180_BW_TCS 0x20
@ -49,65 +83,81 @@
#define BMA180_SMP_SKIP BIT(0)
/* Bit masks for registers bit fields */
#define BMA180_RANGE 0x0e /* Range of measured accel values*/
#define BMA180_RANGE 0x0e /* Range of measured accel values */
#define BMA180_BW 0xf0 /* Accel bandwidth */
#define BMA180_MODE_CONFIG 0x03 /* Config operation modes */
/* We have to write this value in reset register to do soft reset */
#define BMA180_RESET_VAL 0xb6
#define BMA_180_ID_REG_VAL 0x03
#define BMA180_ID_REG_VAL 0x03
/* Chip power modes */
#define BMA180_LOW_NOISE 0x00
#define BMA180_LOW_POWER 0x03
#define BMA180_LOW_NOISE_STR "low_noise"
#define BMA180_LOW_POWER_STR "low_power"
#define BMA250_RANGE_REG 0x0f
#define BMA250_BW_REG 0x10
#define BMA250_POWER_REG 0x11
#define BMA250_RESET_REG 0x14
#define BMA250_INT_ENABLE_REG 0x17
#define BMA250_INT_MAP_REG 0x1a
#define BMA250_INT_RESET_REG 0x21
/* Defaults values */
#define BMA180_DEF_PMODE 0
#define BMA180_DEF_BW 20
#define BMA180_DEF_SCALE 2452
/* Available values for sysfs */
#define BMA180_FLP_FREQ_AVAILABLE \
"10 20 40 75 150 300"
#define BMA180_SCALE_AVAILABLE \
"0.001275 0.001863 0.002452 0.003727 0.004903 0.009709 0.019417"
#define BMA250_RANGE_MASK GENMASK(3, 0) /* Range of accel values */
#define BMA250_BW_MASK GENMASK(4, 0) /* Accel bandwidth */
#define BMA250_SUSPEND_MASK BIT(7) /* chip will sleep */
#define BMA250_LOWPOWER_MASK BIT(6)
#define BMA250_DATA_INTEN_MASK BIT(4)
#define BMA250_INT1_DATA_MASK BIT(0)
#define BMA250_INT_RESET_MASK BIT(7) /* Reset pending interrupts */
struct bma180_data {
struct i2c_client *client;
struct iio_trigger *trig;
const struct bma180_part_info *part_info;
struct mutex mutex;
int sleep_state;
bool sleep_state;
int scale;
int bw;
int pmode;
char *buff;
bool pmode;
u8 buff[16]; /* 3x 16-bit + 8-bit + padding + timestamp */
};
enum bma180_axis {
enum bma180_chan {
AXIS_X,
AXIS_Y,
AXIS_Z,
TEMP
};
static int bw_table[] = { 10, 20, 40, 75, 150, 300 }; /* Hz */
static int scale_table[] = { 1275, 1863, 2452, 3727, 4903, 9709, 19417 };
static int bma180_bw_table[] = { 10, 20, 40, 75, 150, 300 }; /* Hz */
static int bma180_scale_table[] = { 1275, 1863, 2452, 3727, 4903, 9709, 19417 };
static int bma180_get_acc_reg(struct bma180_data *data, enum bma180_axis axis)
static int bma250_bw_table[] = { 8, 16, 31, 63, 125, 250 }; /* Hz */
static int bma250_scale_table[] = { 0, 0, 0, 38344, 0, 76590, 0, 0, 153180, 0,
0, 0, 306458 };
static int bma180_get_data_reg(struct bma180_data *data, enum bma180_chan chan)
{
u8 reg = BMA180_ACC_X_LSB + axis * 2;
int ret;
if (data->sleep_state)
return -EBUSY;
ret = i2c_smbus_read_word_data(data->client, reg);
switch (chan) {
case TEMP:
ret = i2c_smbus_read_byte_data(data->client, BMA180_TEMP);
if (ret < 0)
dev_err(&data->client->dev, "failed to read temp register\n");
break;
default:
ret = i2c_smbus_read_word_data(data->client,
BMA180_ACC_X_LSB + chan * 2);
if (ret < 0)
dev_err(&data->client->dev,
"failed to read accel_%c registers\n", 'x' + axis);
"failed to read accel_%c register\n",
'x' + chan);
}
return ret;
}
@ -125,7 +175,8 @@ static int bma180_set_bits(struct bma180_data *data, u8 reg, u8 mask, u8 val)
static int bma180_reset_intr(struct bma180_data *data)
{
int ret = bma180_set_bits(data, BMA180_CTRL_REG0, BMA180_RESET_INT, 1);
int ret = bma180_set_bits(data, data->part_info->int_reset_reg,
data->part_info->int_reset_mask, 1);
if (ret)
dev_err(&data->client->dev, "failed to reset interrupt\n");
@ -133,12 +184,10 @@ static int bma180_reset_intr(struct bma180_data *data)
return ret;
}
static int bma180_set_new_data_intr_state(struct bma180_data *data, int state)
static int bma180_set_new_data_intr_state(struct bma180_data *data, bool state)
{
u8 reg_val = state ? BMA180_NEW_DATA_INT : 0x00;
int ret = i2c_smbus_write_byte_data(data->client, BMA180_CTRL_REG3,
reg_val);
int ret = bma180_set_bits(data, data->part_info->int_enable_reg,
data->part_info->int_enable_mask, state);
if (ret)
goto err;
ret = bma180_reset_intr(data);
@ -153,9 +202,10 @@ static int bma180_set_new_data_intr_state(struct bma180_data *data, int state)
return ret;
}
static int bma180_set_sleep_state(struct bma180_data *data, int state)
static int bma180_set_sleep_state(struct bma180_data *data, bool state)
{
int ret = bma180_set_bits(data, BMA180_CTRL_REG0, BMA180_SLEEP, state);
int ret = bma180_set_bits(data, data->part_info->sleep_reg,
data->part_info->sleep_mask, state);
if (ret) {
dev_err(&data->client->dev,
@ -167,7 +217,7 @@ static int bma180_set_sleep_state(struct bma180_data *data, int state)
return 0;
}
static int bma180_set_ee_writing_state(struct bma180_data *data, int state)
static int bma180_set_ee_writing_state(struct bma180_data *data, bool state)
{
int ret = bma180_set_bits(data, BMA180_CTRL_REG0, BMA180_EE_W, state);
@ -185,10 +235,10 @@ static int bma180_set_bw(struct bma180_data *data, int val)
if (data->sleep_state)
return -EBUSY;
for (i = 0; i < ARRAY_SIZE(bw_table); ++i) {
if (bw_table[i] == val) {
ret = bma180_set_bits(data,
BMA180_BW_TCS, BMA180_BW, i);
for (i = 0; i < data->part_info->num_bw; ++i) {
if (data->part_info->bw_table[i] == val) {
ret = bma180_set_bits(data, data->part_info->bw_reg,
data->part_info->bw_mask, i);
if (ret) {
dev_err(&data->client->dev,
"failed to set bandwidth\n");
@ -209,10 +259,10 @@ static int bma180_set_scale(struct bma180_data *data, int val)
if (data->sleep_state)
return -EBUSY;
for (i = 0; i < ARRAY_SIZE(scale_table); ++i)
if (scale_table[i] == val) {
ret = bma180_set_bits(data,
BMA180_OFFSET_LSB1, BMA180_RANGE, i);
for (i = 0; i < data->part_info->num_scales; ++i)
if (data->part_info->scale_table[i] == val) {
ret = bma180_set_bits(data, data->part_info->scale_reg,
data->part_info->scale_mask, i);
if (ret) {
dev_err(&data->client->dev,
"failed to set scale\n");
@ -225,11 +275,11 @@ static int bma180_set_scale(struct bma180_data *data, int val)
return -EINVAL;
}
static int bma180_set_pmode(struct bma180_data *data, int mode)
static int bma180_set_pmode(struct bma180_data *data, bool mode)
{
u8 reg_val = mode ? BMA180_LOW_POWER : BMA180_LOW_NOISE;
int ret = bma180_set_bits(data, BMA180_TCO_Z, BMA180_MODE_CONFIG,
reg_val);
u8 reg_val = mode ? data->part_info->lowpower_val : 0;
int ret = bma180_set_bits(data, data->part_info->power_reg,
data->part_info->power_mask, reg_val);
if (ret) {
dev_err(&data->client->dev, "failed to set power mode\n");
@ -243,7 +293,7 @@ static int bma180_set_pmode(struct bma180_data *data, int mode)
static int bma180_soft_reset(struct bma180_data *data)
{
int ret = i2c_smbus_write_byte_data(data->client,
BMA180_RESET, BMA180_RESET_VAL);
data->part_info->softreset_reg, BMA180_RESET_VAL);
if (ret)
dev_err(&data->client->dev, "failed to reset the chip\n");
@ -257,57 +307,86 @@ static int bma180_chip_init(struct bma180_data *data)
int ret = i2c_smbus_read_byte_data(data->client, BMA180_CHIP_ID);
if (ret < 0)
goto err;
if (ret != BMA_180_ID_REG_VAL) {
ret = -ENODEV;
goto err;
}
return ret;
if (ret != BMA180_ID_REG_VAL)
return -ENODEV;
ret = bma180_soft_reset(data);
if (ret)
goto err;
return ret;
/*
* No serial transaction should occur within minimum 10 us
* after soft_reset command
*/
msleep(20);
ret = bma180_set_new_data_intr_state(data, false);
if (ret)
return ret;
return bma180_set_pmode(data, false);
}
static int bma180_chip_config(struct bma180_data *data)
{
int ret = bma180_chip_init(data);
if (ret)
goto err;
ret = bma180_set_bits(data, BMA180_CTRL_REG0, BMA180_DIS_WAKE_UP, 1);
if (ret)
goto err;
ret = bma180_set_ee_writing_state(data, 1);
if (ret)
goto err;
ret = bma180_set_new_data_intr_state(data, 0);
ret = bma180_set_ee_writing_state(data, true);
if (ret)
goto err;
ret = bma180_set_bits(data, BMA180_OFFSET_LSB1, BMA180_SMP_SKIP, 1);
if (ret)
goto err;
ret = bma180_set_pmode(data, BMA180_DEF_PMODE);
ret = bma180_set_bw(data, 20); /* 20 Hz */
if (ret)
goto err;
ret = bma180_set_bw(data, BMA180_DEF_BW);
if (ret)
goto err;
ret = bma180_set_scale(data, BMA180_DEF_SCALE);
ret = bma180_set_scale(data, 2452); /* 2 G */
if (ret)
goto err;
return 0;
err:
dev_err(&data->client->dev, "failed to init the chip\n");
dev_err(&data->client->dev, "failed to config the chip\n");
return ret;
}
static int bma250_chip_config(struct bma180_data *data)
{
int ret = bma180_chip_init(data);
if (ret)
goto err;
ret = bma180_set_bw(data, 16); /* 16 Hz */
if (ret)
goto err;
ret = bma180_set_scale(data, 38344); /* 2 G */
if (ret)
goto err;
ret = bma180_set_bits(data, BMA250_INT_MAP_REG,
BMA250_INT1_DATA_MASK, 1);
if (ret)
goto err;
return 0;
err:
dev_err(&data->client->dev, "failed to config the chip\n");
return ret;
}
static void bma180_chip_disable(struct bma180_data *data)
{
if (bma180_set_new_data_intr_state(data, 0))
if (bma180_set_new_data_intr_state(data, false))
goto err;
if (bma180_set_ee_writing_state(data, 0))
if (bma180_set_ee_writing_state(data, false))
goto err;
if (bma180_set_sleep_state(data, 1))
if (bma180_set_sleep_state(data, true))
goto err;
return;
@ -316,13 +395,64 @@ static void bma180_chip_disable(struct bma180_data *data)
dev_err(&data->client->dev, "failed to disable the chip\n");
}
static IIO_CONST_ATTR(in_accel_filter_low_pass_3db_frequency_available,
BMA180_FLP_FREQ_AVAILABLE);
static IIO_CONST_ATTR(in_accel_scale_available, BMA180_SCALE_AVAILABLE);
static void bma250_chip_disable(struct bma180_data *data)
{
if (bma180_set_new_data_intr_state(data, false))
goto err;
if (bma180_set_sleep_state(data, true))
goto err;
return;
err:
dev_err(&data->client->dev, "failed to disable the chip\n");
}
static ssize_t bma180_show_avail(char *buf, const int *vals, unsigned n,
bool micros)
{
size_t len = 0;
int i;
for (i = 0; i < n; i++) {
if (!vals[i])
continue;
len += scnprintf(buf + len, PAGE_SIZE - len,
micros ? "0.%06d " : "%d ", vals[i]);
}
buf[len - 1] = '\n';
return len;
}
static ssize_t bma180_show_filter_freq_avail(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct bma180_data *data = iio_priv(dev_to_iio_dev(dev));
return bma180_show_avail(buf, data->part_info->bw_table,
data->part_info->num_bw, false);
}
static ssize_t bma180_show_scale_avail(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct bma180_data *data = iio_priv(dev_to_iio_dev(dev));
return bma180_show_avail(buf, data->part_info->scale_table,
data->part_info->num_scales, true);
}
static IIO_DEVICE_ATTR(in_accel_filter_low_pass_3db_frequency_available,
S_IRUGO, bma180_show_filter_freq_avail, NULL, 0);
static IIO_DEVICE_ATTR(in_accel_scale_available,
S_IRUGO, bma180_show_scale_avail, NULL, 0);
static struct attribute *bma180_attributes[] = {
&iio_const_attr_in_accel_filter_low_pass_3db_frequency_available.dev_attr.attr,
&iio_const_attr_in_accel_scale_available.dev_attr.attr,
&iio_dev_attr_in_accel_filter_low_pass_3db_frequency_available.
dev_attr.attr,
&iio_dev_attr_in_accel_scale_available.dev_attr.attr,
NULL,
};
@ -340,22 +470,35 @@ static int bma180_read_raw(struct iio_dev *indio_dev,
switch (mask) {
case IIO_CHAN_INFO_RAW:
mutex_lock(&data->mutex);
if (iio_buffer_enabled(indio_dev))
ret = -EBUSY;
else
ret = bma180_get_acc_reg(data, chan->scan_index);
if (iio_buffer_enabled(indio_dev)) {
mutex_unlock(&data->mutex);
return -EBUSY;
}
ret = bma180_get_data_reg(data, chan->scan_index);
mutex_unlock(&data->mutex);
if (ret < 0)
return ret;
*val = (s16)ret >> chan->scan_type.shift;
*val = sign_extend32(ret >> chan->scan_type.shift,
chan->scan_type.realbits - 1);
return IIO_VAL_INT;
case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
*val = data->bw;
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
case IIO_ACCEL:
*val = 0;
*val2 = data->scale;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_TEMP:
*val = 500;
return IIO_VAL_INT;
default:
return -EINVAL;
}
case IIO_CHAN_INFO_OFFSET:
*val = 48; /* 0 LSB @ 24 degree C */
return IIO_VAL_INT;
default:
return -EINVAL;
}
@ -387,33 +530,14 @@ static int bma180_write_raw(struct iio_dev *indio_dev,
}
}
static int bma180_update_scan_mode(struct iio_dev *indio_dev,
const unsigned long *scan_mask)
{
struct bma180_data *data = iio_priv(indio_dev);
if (data->buff)
devm_kfree(&indio_dev->dev, data->buff);
data->buff = devm_kzalloc(&indio_dev->dev,
indio_dev->scan_bytes, GFP_KERNEL);
if (!data->buff)
return -ENOMEM;
return 0;
}
static const struct iio_info bma180_info = {
.attrs = &bma180_attrs_group,
.read_raw = bma180_read_raw,
.write_raw = bma180_write_raw,
.update_scan_mode = bma180_update_scan_mode,
.driver_module = THIS_MODULE,
};
static const char * const bma180_power_modes[] = {
BMA180_LOW_NOISE_STR,
BMA180_LOW_POWER_STR,
};
static const char * const bma180_power_modes[] = { "low_noise", "low_power" };
static int bma180_get_power_mode(struct iio_dev *indio_dev,
const struct iio_chan_spec *chan)
@ -449,7 +573,7 @@ static const struct iio_chan_spec_ext_info bma180_ext_info[] = {
{ },
};
#define BMA180_CHANNEL(_axis) { \
#define BMA180_ACC_CHANNEL(_axis, _bits) { \
.type = IIO_ACCEL, \
.modified = 1, \
.channel2 = IIO_MOD_##_axis, \
@ -459,18 +583,70 @@ static const struct iio_chan_spec_ext_info bma180_ext_info[] = {
.scan_index = AXIS_##_axis, \
.scan_type = { \
.sign = 's', \
.realbits = 14, \
.realbits = _bits, \
.storagebits = 16, \
.shift = 2, \
.shift = 16 - _bits, \
}, \
.ext_info = bma180_ext_info, \
}
#define BMA180_TEMP_CHANNEL { \
.type = IIO_TEMP, \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_OFFSET), \
.scan_index = TEMP, \
.scan_type = { \
.sign = 's', \
.realbits = 8, \
.storagebits = 16, \
}, \
}
static const struct iio_chan_spec bma180_channels[] = {
BMA180_CHANNEL(X),
BMA180_CHANNEL(Y),
BMA180_CHANNEL(Z),
IIO_CHAN_SOFT_TIMESTAMP(3),
BMA180_ACC_CHANNEL(X, 14),
BMA180_ACC_CHANNEL(Y, 14),
BMA180_ACC_CHANNEL(Z, 14),
BMA180_TEMP_CHANNEL,
IIO_CHAN_SOFT_TIMESTAMP(4),
};
static const struct iio_chan_spec bma250_channels[] = {
BMA180_ACC_CHANNEL(X, 10),
BMA180_ACC_CHANNEL(Y, 10),
BMA180_ACC_CHANNEL(Z, 10),
BMA180_TEMP_CHANNEL,
IIO_CHAN_SOFT_TIMESTAMP(4),
};
static const struct bma180_part_info bma180_part_info[] = {
[BMA180] = {
bma180_channels, ARRAY_SIZE(bma180_channels),
bma180_scale_table, ARRAY_SIZE(bma180_scale_table),
bma180_bw_table, ARRAY_SIZE(bma180_bw_table),
BMA180_CTRL_REG0, BMA180_RESET_INT,
BMA180_CTRL_REG0, BMA180_SLEEP,
BMA180_BW_TCS, BMA180_BW,
BMA180_OFFSET_LSB1, BMA180_RANGE,
BMA180_TCO_Z, BMA180_MODE_CONFIG, BMA180_LOW_POWER,
BMA180_CTRL_REG3, BMA180_NEW_DATA_INT,
BMA180_RESET,
bma180_chip_config,
bma180_chip_disable,
},
[BMA250] = {
bma250_channels, ARRAY_SIZE(bma250_channels),
bma250_scale_table, ARRAY_SIZE(bma250_scale_table),
bma250_bw_table, ARRAY_SIZE(bma250_bw_table),
BMA250_INT_RESET_REG, BMA250_INT_RESET_MASK,
BMA250_POWER_REG, BMA250_SUSPEND_MASK,
BMA250_BW_REG, BMA250_BW_MASK,
BMA250_RANGE_REG, BMA250_RANGE_MASK,
BMA250_POWER_REG, BMA250_LOWPOWER_MASK, 1,
BMA250_INT_ENABLE_REG, BMA250_DATA_INTEN_MASK,
BMA250_RESET_REG,
bma250_chip_config,
bma250_chip_disable,
},
};
static irqreturn_t bma180_trigger_handler(int irq, void *p)
@ -485,13 +661,14 @@ static irqreturn_t bma180_trigger_handler(int irq, void *p)
for_each_set_bit(bit, indio_dev->buffer->scan_mask,
indio_dev->masklength) {
ret = bma180_get_acc_reg(data, bit);
ret = bma180_get_data_reg(data, bit);
if (ret < 0) {
mutex_unlock(&data->mutex);
goto err;
}
((s16 *)data->buff)[i++] = ret;
}
mutex_unlock(&data->mutex);
iio_push_to_buffers_with_timestamp(indio_dev, data->buff, time_ns);
@ -529,7 +706,6 @@ static int bma180_probe(struct i2c_client *client,
{
struct bma180_data *data;
struct iio_dev *indio_dev;
struct iio_trigger *trig;
int ret;
indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
@ -539,43 +715,45 @@ static int bma180_probe(struct i2c_client *client,
data = iio_priv(indio_dev);
i2c_set_clientdata(client, indio_dev);
data->client = client;
data->part_info = &bma180_part_info[id->driver_data];
ret = bma180_chip_init(data);
ret = data->part_info->chip_config(data);
if (ret < 0)
goto err_chip_disable;
mutex_init(&data->mutex);
indio_dev->dev.parent = &client->dev;
indio_dev->channels = bma180_channels;
indio_dev->num_channels = ARRAY_SIZE(bma180_channels);
indio_dev->name = BMA180_DRV_NAME;
indio_dev->channels = data->part_info->channels;
indio_dev->num_channels = data->part_info->num_channels;
indio_dev->name = id->name;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &bma180_info;
trig = iio_trigger_alloc("%s-dev%d", indio_dev->name, indio_dev->id);
if (!trig) {
if (client->irq > 0) {
data->trig = iio_trigger_alloc("%s-dev%d", indio_dev->name,
indio_dev->id);
if (!data->trig) {
ret = -ENOMEM;
goto err_chip_disable;
}
ret = devm_request_irq(&client->dev, client->irq,
iio_trigger_generic_data_rdy_poll,
IRQF_TRIGGER_RISING, BMA180_IRQ_NAME, trig);
iio_trigger_generic_data_rdy_poll, IRQF_TRIGGER_RISING,
"bma180_event", data->trig);
if (ret) {
dev_err(&client->dev, "unable to request IRQ\n");
goto err_trigger_free;
}
trig->dev.parent = &client->dev;
trig->ops = &bma180_trigger_ops;
iio_trigger_set_drvdata(trig, indio_dev);
data->trig = trig;
indio_dev->trig = trig;
data->trig->dev.parent = &client->dev;
data->trig->ops = &bma180_trigger_ops;
iio_trigger_set_drvdata(data->trig, indio_dev);
indio_dev->trig = data->trig;
ret = iio_trigger_register(trig);
ret = iio_trigger_register(data->trig);
if (ret)
goto err_trigger_free;
}
ret = iio_triggered_buffer_setup(indio_dev, NULL,
bma180_trigger_handler, NULL);
@ -595,11 +773,12 @@ static int bma180_probe(struct i2c_client *client,
err_buffer_cleanup:
iio_triggered_buffer_cleanup(indio_dev);
err_trigger_unregister:
iio_trigger_unregister(trig);
if (data->trig)
iio_trigger_unregister(data->trig);
err_trigger_free:
iio_trigger_free(trig);
iio_trigger_free(data->trig);
err_chip_disable:
bma180_chip_disable(data);
data->part_info->chip_disable(data);
return ret;
}
@ -611,11 +790,13 @@ static int bma180_remove(struct i2c_client *client)
iio_device_unregister(indio_dev);
iio_triggered_buffer_cleanup(indio_dev);
if (data->trig) {
iio_trigger_unregister(data->trig);
iio_trigger_free(data->trig);
}
mutex_lock(&data->mutex);
bma180_chip_disable(data);
data->part_info->chip_disable(data);
mutex_unlock(&data->mutex);
return 0;
@ -629,7 +810,7 @@ static int bma180_suspend(struct device *dev)
int ret;
mutex_lock(&data->mutex);
ret = bma180_set_sleep_state(data, 1);
ret = bma180_set_sleep_state(data, true);
mutex_unlock(&data->mutex);
return ret;
@ -642,7 +823,7 @@ static int bma180_resume(struct device *dev)
int ret;
mutex_lock(&data->mutex);
ret = bma180_set_sleep_state(data, 0);
ret = bma180_set_sleep_state(data, false);
mutex_unlock(&data->mutex);
return ret;
@ -654,27 +835,28 @@ static SIMPLE_DEV_PM_OPS(bma180_pm_ops, bma180_suspend, bma180_resume);
#define BMA180_PM_OPS NULL
#endif
static struct i2c_device_id bma180_id[] = {
{ BMA180_DRV_NAME, 0 },
static struct i2c_device_id bma180_ids[] = {
{ "bma180", BMA180 },
{ "bma250", BMA250 },
{ }
};
MODULE_DEVICE_TABLE(i2c, bma180_id);
MODULE_DEVICE_TABLE(i2c, bma180_ids);
static struct i2c_driver bma180_driver = {
.driver = {
.name = BMA180_DRV_NAME,
.name = "bma180",
.owner = THIS_MODULE,
.pm = BMA180_PM_OPS,
},
.probe = bma180_probe,
.remove = bma180_remove,
.id_table = bma180_id,
.id_table = bma180_ids,
};
module_i2c_driver(bma180_driver);
MODULE_AUTHOR("Kravchenko Oleksandr <x0199363@ti.com>");
MODULE_AUTHOR("Texas Instruments, Inc.");
MODULE_DESCRIPTION("Bosch BMA180 triaxial acceleration sensor");
MODULE_DESCRIPTION("Bosch BMA180/BMA250 triaxial acceleration sensor");
MODULE_LICENSE("GPL");

237
drivers/iio/accel/bmc150-accel.c
View File

@ -1,5 +1,12 @@
/*
* BMC150 3-axis accelerometer driver
* 3-axis accelerometer driver supporting following Bosch-Sensortec chips:
* - BMC150
* - BMI055
* - BMA255
* - BMA250E
* - BMA222E
* - BMA280
*
* Copyright (c) 2014, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
@ -34,7 +41,6 @@
#define BMC150_ACCEL_GPIO_NAME "bmc150_accel_int"
#define BMC150_ACCEL_REG_CHIP_ID 0x00
#define BMC150_ACCEL_CHIP_ID_VAL 0xFA
#define BMC150_ACCEL_REG_INT_STATUS_2 0x0B
#define BMC150_ACCEL_ANY_MOTION_MASK 0x07
@ -126,6 +132,18 @@ enum bmc150_power_modes {
BMC150_ACCEL_SLEEP_MODE_SUSPEND = 0x04,
};
struct bmc150_scale_info {
int scale;
u8 reg_range;
};
struct bmc150_accel_chip_info {
u8 chip_id;
const struct iio_chan_spec *channels;
int num_channels;
const struct bmc150_scale_info scale_table[4];
};
struct bmc150_accel_data {
struct i2c_client *client;
struct iio_trigger *dready_trig;
@ -140,6 +158,7 @@ struct bmc150_accel_data {
bool dready_trigger_on;
bool motion_trigger_on;
int64_t timestamp;
const struct bmc150_accel_chip_info *chip_info;
};
static const struct {
@ -167,17 +186,9 @@ static const struct {
{0x0E, 1},
{0x0F, 1} };
static const struct {
int scale;
int range;
} bmc150_accel_scale_table[] = { {9610, BMC150_ACCEL_DEF_RANGE_2G},
{19122, BMC150_ACCEL_DEF_RANGE_4G},
{38344, BMC150_ACCEL_DEF_RANGE_8G},
{77057, BMC150_ACCEL_DEF_RANGE_16G} };
static const struct {
int sleep_dur;
int reg_value;
u8 reg_value;
} bmc150_accel_sleep_value_table[] = { {0, 0},
{500, BMC150_ACCEL_SLEEP_500_MICRO},
{1000, BMC150_ACCEL_SLEEP_1_MS},
@ -267,7 +278,7 @@ static int bmc150_accel_chip_init(struct bmc150_accel_data *data)
}
dev_dbg(&data->client->dev, "Chip Id %x\n", ret);
if (ret != BMC150_ACCEL_CHIP_ID_VAL) {
if (ret != data->chip_info->chip_id) {
dev_err(&data->client->dev, "Invalid chip %x\n", ret);
return -ENODEV;
}
@ -499,6 +510,7 @@ static int bmc150_accel_get_bw(struct bmc150_accel_data *data, int *val,
return -EINVAL;
}
#ifdef CONFIG_PM_RUNTIME
static int bmc150_accel_get_startup_times(struct bmc150_accel_data *data)
{
int i;
@ -529,24 +541,30 @@ static int bmc150_accel_set_power_state(struct bmc150_accel_data *data, bool on)
return 0;
}
#else
static int bmc150_accel_set_power_state(struct bmc150_accel_data *data, bool on)
{
return 0;
}
#endif
static int bmc150_accel_set_scale(struct bmc150_accel_data *data, int val)
{
int ret, i;
for (i = 0; i < ARRAY_SIZE(bmc150_accel_scale_table); ++i) {
if (bmc150_accel_scale_table[i].scale == val) {
for (i = 0; i < ARRAY_SIZE(data->chip_info->scale_table); ++i) {
if (data->chip_info->scale_table[i].scale == val) {
ret = i2c_smbus_write_byte_data(
data->client,
BMC150_ACCEL_REG_PMU_RANGE,
bmc150_accel_scale_table[i].range);
data->chip_info->scale_table[i].reg_range);
if (ret < 0) {
dev_err(&data->client->dev,
"Error writing pmu_range\n");
return ret;
}
data->range = bmc150_accel_scale_table[i].range;
data->range = data->chip_info->scale_table[i].reg_range;
return 0;
}
}
@ -573,10 +591,12 @@ static int bmc150_accel_get_temp(struct bmc150_accel_data *data, int *val)
return IIO_VAL_INT;
}
static int bmc150_accel_get_axis(struct bmc150_accel_data *data, int axis,
static int bmc150_accel_get_axis(struct bmc150_accel_data *data,
struct iio_chan_spec const *chan,
int *val)
{
int ret;
int axis = chan->scan_index;
mutex_lock(&data->mutex);
ret = bmc150_accel_set_power_state(data, true);
@ -593,7 +613,8 @@ static int bmc150_accel_get_axis(struct bmc150_accel_data *data, int axis,
mutex_unlock(&data->mutex);
return ret;
}
*val = sign_extend32(ret >> 4, 11);
*val = sign_extend32(ret >> chan->scan_type.shift,
chan->scan_type.realbits - 1);
ret = bmc150_accel_set_power_state(data, false);
mutex_unlock(&data->mutex);
if (ret < 0)
@ -618,9 +639,7 @@ static int bmc150_accel_read_raw(struct iio_dev *indio_dev,
if (iio_buffer_enabled(indio_dev))
return -EBUSY;
else
return bmc150_accel_get_axis(data,
chan->scan_index,
val);
return bmc150_accel_get_axis(data, chan, val);
default:
return -EINVAL;
}
@ -639,13 +658,13 @@ static int bmc150_accel_read_raw(struct iio_dev *indio_dev,
case IIO_ACCEL:
{
int i;
const struct bmc150_scale_info *si;
int st_size = ARRAY_SIZE(data->chip_info->scale_table);
for (i = 0; i < ARRAY_SIZE(bmc150_accel_scale_table);
++i) {
if (bmc150_accel_scale_table[i].range ==
data->range) {
*val2 =
bmc150_accel_scale_table[i].scale;
for (i = 0; i < st_size; ++i) {
si = &data->chip_info->scale_table[i];
if (si->reg_range == data->range) {
*val2 = si->scale;
return IIO_VAL_INT_PLUS_MICRO;
}
}
@ -833,7 +852,7 @@ static const struct iio_event_spec bmc150_accel_event = {
BIT(IIO_EV_INFO_PERIOD)
};
#define BMC150_ACCEL_CHANNEL(_axis) { \
#define BMC150_ACCEL_CHANNEL(_axis, bits) { \
.type = IIO_ACCEL, \
.modified = 1, \
.channel2 = IIO_MOD_##_axis, \
@ -843,26 +862,101 @@ static const struct iio_event_spec bmc150_accel_event = {
.scan_index = AXIS_##_axis, \
.scan_type = { \
.sign = 's', \
.realbits = 12, \
.realbits = (bits), \
.storagebits = 16, \
.shift = 4, \
.shift = 16 - (bits), \
}, \
.event_spec = &bmc150_accel_event, \
.num_event_specs = 1 \
}
static const struct iio_chan_spec bmc150_accel_channels[] = {
{
.type = IIO_TEMP,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
BIT(IIO_CHAN_INFO_SCALE) |
BIT(IIO_CHAN_INFO_OFFSET),
.scan_index = -1,
#define BMC150_ACCEL_CHANNELS(bits) { \
{ \
.type = IIO_TEMP, \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) | \
BIT(IIO_CHAN_INFO_SCALE) | \
BIT(IIO_CHAN_INFO_OFFSET), \
.scan_index = -1, \
}, \
BMC150_ACCEL_CHANNEL(X, bits), \
BMC150_ACCEL_CHANNEL(Y, bits), \
BMC150_ACCEL_CHANNEL(Z, bits), \
IIO_CHAN_SOFT_TIMESTAMP(3), \
}
static const struct iio_chan_spec bma222e_accel_channels[] =
BMC150_ACCEL_CHANNELS(8);
static const struct iio_chan_spec bma250e_accel_channels[] =
BMC150_ACCEL_CHANNELS(10);
static const struct iio_chan_spec bmc150_accel_channels[] =
BMC150_ACCEL_CHANNELS(12);
static const struct iio_chan_spec bma280_accel_channels[] =
BMC150_ACCEL_CHANNELS(14);
enum {
bmc150,
bmi055,
bma255,
bma250e,
bma222e,
bma280,
};
static const struct bmc150_accel_chip_info bmc150_accel_chip_info_tbl[] = {
[bmc150] = {
.chip_id = 0xFA,
.channels = bmc150_accel_channels,
.num_channels = ARRAY_SIZE(bmc150_accel_channels),
.scale_table = { {9610, BMC150_ACCEL_DEF_RANGE_2G},
{19122, BMC150_ACCEL_DEF_RANGE_4G},
{38344, BMC150_ACCEL_DEF_RANGE_8G},
{76590, BMC150_ACCEL_DEF_RANGE_16G} },
},
[bmi055] = {
.chip_id = 0xFA,
.channels = bmc150_accel_channels,
.num_channels = ARRAY_SIZE(bmc150_accel_channels),
.scale_table = { {9610, BMC150_ACCEL_DEF_RANGE_2G},
{19122, BMC150_ACCEL_DEF_RANGE_4G},
{38344, BMC150_ACCEL_DEF_RANGE_8G},
{76590, BMC150_ACCEL_DEF_RANGE_16G} },
},
[bma255] = {
.chip_id = 0xFA,
.channels = bmc150_accel_channels,
.num_channels = ARRAY_SIZE(bmc150_accel_channels),
.scale_table = { {9610, BMC150_ACCEL_DEF_RANGE_2G},
{19122, BMC150_ACCEL_DEF_RANGE_4G},
{38344, BMC150_ACCEL_DEF_RANGE_8G},
{76590, BMC150_ACCEL_DEF_RANGE_16G} },
},
[bma250e] = {
.chip_id = 0xF9,
.channels = bma250e_accel_channels,
.num_channels = ARRAY_SIZE(bma250e_accel_channels),
.scale_table = { {38344, BMC150_ACCEL_DEF_RANGE_2G},
{76590, BMC150_ACCEL_DEF_RANGE_4G},
{153277, BMC150_ACCEL_DEF_RANGE_8G},
{306457, BMC150_ACCEL_DEF_RANGE_16G} },
},
[bma222e] = {
.chip_id = 0xF8,
.channels = bma222e_accel_channels,
.num_channels = ARRAY_SIZE(bma222e_accel_channels),
.scale_table = { {153277, BMC150_ACCEL_DEF_RANGE_2G},
{306457, BMC150_ACCEL_DEF_RANGE_4G},
{612915, BMC150_ACCEL_DEF_RANGE_8G},
{1225831, BMC150_ACCEL_DEF_RANGE_16G} },
},
[bma280] = {
.chip_id = 0xFB,
.channels = bma280_accel_channels,
.num_channels = ARRAY_SIZE(bma280_accel_channels),
.scale_table = { {2392, BMC150_ACCEL_DEF_RANGE_2G},
{4785, BMC150_ACCEL_DEF_RANGE_4G},
{9581, BMC150_ACCEL_DEF_RANGE_8G},
{19152, BMC150_ACCEL_DEF_RANGE_16G} },
},
BMC150_ACCEL_CHANNEL(X),
BMC150_ACCEL_CHANNEL(Y),
BMC150_ACCEL_CHANNEL(Z),
IIO_CHAN_SOFT_TIMESTAMP(3),
};
static const struct iio_info bmc150_accel_info = {
@ -1033,10 +1127,23 @@ static irqreturn_t bmc150_accel_data_rdy_trig_poll(int irq, void *private)
return IRQ_HANDLED;
}
static int bmc150_accel_acpi_gpio_probe(struct i2c_client *client,
struct bmc150_accel_data *data)
static const char *bmc150_accel_match_acpi_device(struct device *dev, int *data)
{
const struct acpi_device_id *id;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return NULL;
*data = (int) id->driver_data;
return dev_name(dev);
}
static int bmc150_accel_gpio_probe(struct i2c_client *client,
struct bmc150_accel_data *data)
{
struct device *dev;
struct gpio_desc *gpio;
int ret;
@ -1045,17 +1152,11 @@ static int bmc150_accel_acpi_gpio_probe(struct i2c_client *client,
return -EINVAL;
dev = &client->dev;
if (!ACPI_HANDLE(dev))
return -ENODEV;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return -ENODEV;
/* data ready gpio interrupt pin */
gpio = devm_gpiod_get_index(dev, BMC150_ACCEL_GPIO_NAME, 0);
if (IS_ERR(gpio)) {
dev_err(dev, "Failed: acpi gpio get index\n");
dev_err(dev, "Failed: gpio get index\n");
return PTR_ERR(gpio);
}
@ -1076,6 +1177,8 @@ static int bmc150_accel_probe(struct i2c_client *client,
struct bmc150_accel_data *data;
struct iio_dev *indio_dev;
int ret;
const char *name = NULL;
int chip_id = 0;
indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
if (!indio_dev)
@ -1085,6 +1188,16 @@ static int bmc150_accel_probe(struct i2c_client *client,
i2c_set_clientdata(client, indio_dev);
data->client = client;
if (id) {
name = id->name;
chip_id = id->driver_data;
}
if (ACPI_HANDLE(&client->dev))
name = bmc150_accel_match_acpi_device(&client->dev, &chip_id);
data->chip_info = &bmc150_accel_chip_info_tbl[chip_id];
ret = bmc150_accel_chip_init(data);
if (ret < 0)
return ret;
@ -1092,14 +1205,14 @@ static int bmc150_accel_probe(struct i2c_client *client,
mutex_init(&data->mutex);
indio_dev->dev.parent = &client->dev;
indio_dev->channels = bmc150_accel_channels;
indio_dev->num_channels = ARRAY_SIZE(bmc150_accel_channels);
indio_dev->name = BMC150_ACCEL_DRV_NAME;
indio_dev->channels = data->chip_info->channels;
indio_dev->num_channels = data->chip_info->num_channels;
indio_dev->name = name;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &bmc150_accel_info;
if (client->irq < 0)
client->irq = bmc150_accel_acpi_gpio_probe(client, data);
client->irq = bmc150_accel_gpio_probe(client, data);
if (client->irq >= 0) {
ret = devm_request_threaded_irq(
@ -1277,14 +1390,24 @@ static const struct dev_pm_ops bmc150_accel_pm_ops = {
};
static const struct acpi_device_id bmc150_accel_acpi_match[] = {
{"BSBA0150", 0},
{"BMC150A", 0},
{"BSBA0150", bmc150},
{"BMC150A", bmc150},
{"BMI055A", bmi055},
{"BMA0255", bma255},
{"BMA250E", bma250e},
{"BMA222E", bma222e},
{"BMA0280", bma280},
{ },
};
MODULE_DEVICE_TABLE(acpi, bmc150_accel_acpi_match);
static const struct i2c_device_id bmc150_accel_id[] = {
{"bmc150_accel", 0},
{"bmc150_accel", bmc150},
{"bmi055_accel", bmi055},
{"bma255", bma255},
{"bma250e", bma250e},
{"bma222e", bma222e},
{"bma280", bma280},
{}
};

1
drivers/iio/accel/hid-sensor-accel-3d.c
View File

@ -419,7 +419,6 @@ static struct platform_driver hid_accel_3d_platform_driver = {
.id_table = hid_accel_3d_ids,
.driver = {
.name = KBUILD_MODNAME,
.owner = THIS_MODULE,
},
.probe = hid_accel_3d_probe,
.remove = hid_accel_3d_remove,

605
drivers/iio/accel/kxcjk-1013.c
View File

@ -27,6 +27,7 @@
#include <linux/iio/sysfs.h>
#include <linux/iio/buffer.h>
#include <linux/iio/trigger.h>
#include <linux/iio/events.h>
#include <linux/iio/trigger_consumer.h>
#include <linux/iio/triggered_buffer.h>
#include <linux/iio/accel/kxcjk_1013.h>
@ -75,16 +76,38 @@
#define KXCJK1013_SLEEP_DELAY_MS 2000
#define KXCJK1013_REG_INT_SRC2_BIT_ZP BIT(0)
#define KXCJK1013_REG_INT_SRC2_BIT_ZN BIT(1)
#define KXCJK1013_REG_INT_SRC2_BIT_YP BIT(2)
#define KXCJK1013_REG_INT_SRC2_BIT_YN BIT(3)
#define KXCJK1013_REG_INT_SRC2_BIT_XP BIT(4)
#define KXCJK1013_REG_INT_SRC2_BIT_XN BIT(5)
#define KXCJK1013_DEFAULT_WAKE_THRES 1
enum kx_chipset {
KXCJK1013,
KXCJ91008,
KXTJ21009,
KX_MAX_CHIPS /* this must be last */
};
struct kxcjk1013_data {
struct i2c_client *client;
struct iio_trigger *trig;
bool trig_mode;
struct iio_trigger *dready_trig;
struct iio_trigger *motion_trig;
struct mutex mutex;
s16 buffer[8];
u8 odr_bits;
u8 range;
int wake_thres;
int wake_dur;
bool active_high_intr;
bool trigger_on;
bool dready_trigger_on;
int ev_enable_state;
bool motion_trigger_on;
int64_t timestamp;
enum kx_chipset chipset;
};
enum kxcjk1013_axis {
@ -118,10 +141,53 @@ static const struct {
static const struct {
int odr_bits;
int usec;
} odr_start_up_times[] = { {0x08, 100000}, {0x09, 100000}, {0x0A, 100000},
{0x0B, 100000}, { 0, 80000}, {0x01, 41000},
{0x02, 21000}, {0x03, 11000}, {0x04, 6400},
{0x05, 3900}, {0x06, 2700}, {0x07, 2100} };
} odr_start_up_times[KX_MAX_CHIPS][12] = {
/* KXCJK-1013 */
{
{0x08, 100000},
{0x09, 100000},
{0x0A, 100000},
{0x0B, 100000},
{0, 80000},
{0x01, 41000},
{0x02, 21000},
{0x03, 11000},
{0x04, 6400},
{0x05, 3900},
{0x06, 2700},
{0x07, 2100},
},
/* KXCJ9-1008 */
{
{0x08, 100000},
{0x09, 100000},
{0x0A, 100000},
{0x0B, 100000},
{0, 80000},
{0x01, 41000},
{0x02, 21000},
{0x03, 11000},
{0x04, 6400},
{0x05, 3900},
{0x06, 2700},
{0x07, 2100},
},
/* KXCTJ2-1009 */
{
{0x08, 1240000},
{0x09, 621000},
{0x0A, 309000},
{0x0B, 151000},
{0, 80000},
{0x01, 41000},
{0x02, 21000},
{0x03, 11000},
{0x04, 6000},
{0x05, 4000},
{0x06, 3000},
{0x07, 2000},
},
};
static const struct {
u16 scale;
@ -131,6 +197,23 @@ static const struct {
{19163, 1, 0},
{38326, 0, 1} };
static const struct {
int val;
int val2;
int odr_bits;
} wake_odr_data_rate_table[] = { {0, 781000, 0x00},
{1, 563000, 0x01},
{3, 125000, 0x02},
{6, 250000, 0x03},
{12, 500000, 0x04},
{25, 0, 0x05},
{50, 0, 0x06},
{100, 0, 0x06},
{200, 0, 0x06},
{400, 0, 0x06},
{800, 0, 0x06},
{1600, 0, 0x06} };
static int kxcjk1013_set_mode(struct kxcjk1013_data *data,
enum kxcjk1013_mode mode)
{
@ -239,9 +322,6 @@ static int kxcjk1013_chip_init(struct kxcjk1013_data *data)
if (ret < 0)
return ret;
data->range = KXCJK1013_RANGE_4G;
ret = i2c_smbus_read_byte_data(data->client, KXCJK1013_REG_DATA_CTRL);
if (ret < 0) {
dev_err(&data->client->dev, "Error reading reg_data_ctrl\n");
@ -273,20 +353,25 @@ static int kxcjk1013_chip_init(struct kxcjk1013_data *data)
if (ret < 0)
return ret;
data->wake_thres = KXCJK1013_DEFAULT_WAKE_THRES;
return 0;
}
#ifdef CONFIG_PM_RUNTIME
static int kxcjk1013_get_startup_times(struct kxcjk1013_data *data)
{
int i;
int idx = data->chipset;
for (i = 0; i < ARRAY_SIZE(odr_start_up_times); ++i) {
if (odr_start_up_times[i].odr_bits == data->odr_bits)
return odr_start_up_times[i].usec;
for (i = 0; i < ARRAY_SIZE(odr_start_up_times[idx]); ++i) {
if (odr_start_up_times[idx][i].odr_bits == data->odr_bits)
return odr_start_up_times[idx][i].usec;
}
return KXCJK1013_MAX_STARTUP_TIME_US;
}
#endif
static int kxcjk1013_set_power_state(struct kxcjk1013_data *data, bool on)
{
@ -307,7 +392,95 @@ static int kxcjk1013_set_power_state(struct kxcjk1013_data *data, bool on)
return 0;
}
static int kxcjk1013_chip_setup_interrupt(struct kxcjk1013_data *data,
static int kxcjk1013_chip_update_thresholds(struct kxcjk1013_data *data)
{
int ret;
ret = i2c_smbus_write_byte_data(data->client,
KXCJK1013_REG_WAKE_TIMER,
data->wake_dur);
if (ret < 0) {
dev_err(&data->client->dev,
"Error writing reg_wake_timer\n");
return ret;
}
ret = i2c_smbus_write_byte_data(data->client,
KXCJK1013_REG_WAKE_THRES,
data->wake_thres);
if (ret < 0) {
dev_err(&data->client->dev, "Error writing reg_wake_thres\n");
return ret;
}
return 0;
}
static int kxcjk1013_setup_any_motion_interrupt(struct kxcjk1013_data *data,
bool status)
{
int ret;
enum kxcjk1013_mode store_mode;
ret = kxcjk1013_get_mode(data, &store_mode);
if (ret < 0)
return ret;
/* This is requirement by spec to change state to STANDBY */
ret = kxcjk1013_set_mode(data, STANDBY);
if (ret < 0)
return ret;
ret = kxcjk1013_chip_update_thresholds(data);
if (ret < 0)
return ret;
ret = i2c_smbus_read_byte_data(data->client, KXCJK1013_REG_INT_CTRL1);
if (ret < 0) {
dev_err(&data->client->dev, "Error reading reg_int_ctrl1\n");
return ret;
}
if (status)
ret |= KXCJK1013_REG_INT_REG1_BIT_IEN;
else
ret &= ~KXCJK1013_REG_INT_REG1_BIT_IEN;
ret = i2c_smbus_write_byte_data(data->client, KXCJK1013_REG_INT_CTRL1,
ret);
if (ret < 0) {
dev_err(&data->client->dev, "Error writing reg_int_ctrl1\n");
return ret;
}
ret = i2c_smbus_read_byte_data(data->client, KXCJK1013_REG_CTRL1);
if (ret < 0) {
dev_err(&data->client->dev, "Error reading reg_ctrl1\n");
return ret;
}
if (status)
ret |= KXCJK1013_REG_CTRL1_BIT_WUFE;
else
ret &= ~KXCJK1013_REG_CTRL1_BIT_WUFE;
ret = i2c_smbus_write_byte_data(data->client,
KXCJK1013_REG_CTRL1, ret);
if (ret < 0) {
dev_err(&data->client->dev, "Error writing reg_ctrl1\n");
return ret;
}
if (store_mode == OPERATION) {
ret = kxcjk1013_set_mode(data, OPERATION);
if (ret < 0)
return ret;
}
return 0;
}
static int kxcjk1013_setup_new_data_interrupt(struct kxcjk1013_data *data,
bool status)
{
int ret;
@ -381,6 +554,20 @@ static int kxcjk1013_convert_freq_to_bit(int val, int val2)
return -EINVAL;
}
static int kxcjk1013_convert_wake_odr_to_bit(int val, int val2)
{
int i;
for (i = 0; i < ARRAY_SIZE(wake_odr_data_rate_table); ++i) {
if (wake_odr_data_rate_table[i].val == val &&
wake_odr_data_rate_table[i].val2 == val2) {
return wake_odr_data_rate_table[i].odr_bits;
}
}
return -EINVAL;
}
static int kxcjk1013_set_odr(struct kxcjk1013_data *data, int val, int val2)
{
int ret;
@ -409,6 +596,17 @@ static int kxcjk1013_set_odr(struct kxcjk1013_data *data, int val, int val2)
data->odr_bits = odr_bits;
odr_bits = kxcjk1013_convert_wake_odr_to_bit(val, val2);
if (odr_bits < 0)
return odr_bits;
ret = i2c_smbus_write_byte_data(data->client, KXCJK1013_REG_CTRL2,
odr_bits);
if (ret < 0) {
dev_err(&data->client->dev, "Error writing reg_ctrl2\n");
return ret;
}
if (store_mode == OPERATION) {
ret = kxcjk1013_set_mode(data, OPERATION);
if (ret < 0)
@ -560,12 +758,120 @@ static int kxcjk1013_write_raw(struct iio_dev *indio_dev,
return ret;
}
static int kxcjk1013_read_event(struct iio_dev *indio_dev,
const struct iio_chan_spec *chan,
enum iio_event_type type,
enum iio_event_direction dir,
enum iio_event_info info,
int *val, int *val2)
{
struct kxcjk1013_data *data = iio_priv(indio_dev);
*val2 = 0;
switch (info) {
case IIO_EV_INFO_VALUE:
*val = data->wake_thres;
break;
case IIO_EV_INFO_PERIOD:
*val = data->wake_dur;
break;
default:
return -EINVAL;
}
return IIO_VAL_INT;
}
static int kxcjk1013_write_event(struct iio_dev *indio_dev,
const struct iio_chan_spec *chan,
enum iio_event_type type,
enum iio_event_direction dir,
enum iio_event_info info,
int val, int val2)
{
struct kxcjk1013_data *data = iio_priv(indio_dev);
if (data->ev_enable_state)
return -EBUSY;
switch (info) {
case IIO_EV_INFO_VALUE:
data->wake_thres = val;
break;
case IIO_EV_INFO_PERIOD:
data->wake_dur = val;
break;
default:
return -EINVAL;
}
return 0;
}
static int kxcjk1013_read_event_config(struct iio_dev *indio_dev,
const struct iio_chan_spec *chan,
enum iio_event_type type,
enum iio_event_direction dir)
{
struct kxcjk1013_data *data = iio_priv(indio_dev);
return data->ev_enable_state;
}
static int kxcjk1013_write_event_config(struct iio_dev *indio_dev,
const struct iio_chan_spec *chan,
enum iio_event_type type,
enum iio_event_direction dir,
int state)
{
struct kxcjk1013_data *data = iio_priv(indio_dev);
int ret;
if (state && data->ev_enable_state)
return 0;
mutex_lock(&data->mutex);
if (!state && data->motion_trigger_on) {
data->ev_enable_state = 0;
mutex_unlock(&data->mutex);
return 0;
}
/*
* We will expect the enable and disable to do operation in
* in reverse order. This will happen here anyway as our
* resume operation uses sync mode runtime pm calls, the
* suspend operation will be delayed by autosuspend delay
* So the disable operation will still happen in reverse of
* enable operation. When runtime pm is disabled the mode
* is always on so sequence doesn't matter
*/
ret = kxcjk1013_set_power_state(data, state);
if (ret < 0) {
mutex_unlock(&data->mutex);
return ret;
}
ret = kxcjk1013_setup_any_motion_interrupt(data, state);
if (ret < 0) {
mutex_unlock(&data->mutex);
return ret;
}
data->ev_enable_state = state;
mutex_unlock(&data->mutex);
return 0;
}
static int kxcjk1013_validate_trigger(struct iio_dev *indio_dev,
struct iio_trigger *trig)
{
struct kxcjk1013_data *data = iio_priv(indio_dev);
if (data->trig != trig)
if (data->dready_trig != trig && data->motion_trig != trig)
return -EINVAL;
return 0;
@ -586,6 +892,14 @@ static const struct attribute_group kxcjk1013_attrs_group = {
.attrs = kxcjk1013_attributes,
};
static const struct iio_event_spec kxcjk1013_event = {
.type = IIO_EV_TYPE_THRESH,
.dir = IIO_EV_DIR_RISING | IIO_EV_DIR_FALLING,
.mask_separate = BIT(IIO_EV_INFO_VALUE) |
BIT(IIO_EV_INFO_ENABLE) |
BIT(IIO_EV_INFO_PERIOD)
};
#define KXCJK1013_CHANNEL(_axis) { \
.type = IIO_ACCEL, \
.modified = 1, \
@ -601,6 +915,8 @@ static const struct attribute_group kxcjk1013_attrs_group = {
.shift = 4, \
.endianness = IIO_CPU, \
}, \
.event_spec = &kxcjk1013_event, \
.num_event_specs = 1 \
}
static const struct iio_chan_spec kxcjk1013_channels[] = {
@ -614,6 +930,10 @@ static const struct iio_info kxcjk1013_info = {
.attrs = &kxcjk1013_attrs_group,
.read_raw = kxcjk1013_read_raw,
.write_raw = kxcjk1013_write_raw,
.read_event_value = kxcjk1013_read_event,
.write_event_value = kxcjk1013_write_event,
.write_event_config = kxcjk1013_write_event_config,
.read_event_config = kxcjk1013_read_event_config,
.validate_trigger = kxcjk1013_validate_trigger,
.driver_module = THIS_MODULE,
};
@ -639,7 +959,7 @@ static irqreturn_t kxcjk1013_trigger_handler(int irq, void *p)
mutex_unlock(&data->mutex);
iio_push_to_buffers_with_timestamp(indio_dev, data->buffer,
pf->timestamp);
data->timestamp);
err:
iio_trigger_notify_done(indio_dev->trig);
@ -668,19 +988,32 @@ static int kxcjk1013_data_rdy_trigger_set_state(struct iio_trigger *trig,
struct kxcjk1013_data *data = iio_priv(indio_dev);
int ret;
if (state && data->trigger_on)
return 0;
mutex_lock(&data->mutex);
ret = kxcjk1013_chip_setup_interrupt(data, state);
if (!ret) {
if (!state && data->ev_enable_state && data->motion_trigger_on) {
data->motion_trigger_on = false;
mutex_unlock(&data->mutex);
return 0;
}
ret = kxcjk1013_set_power_state(data, state);
if (ret < 0) {
mutex_unlock(&data->mutex);
return ret;
}
if (data->motion_trig == trig)
ret = kxcjk1013_setup_any_motion_interrupt(data, state);
else
ret = kxcjk1013_setup_new_data_interrupt(data, state);
if (ret < 0) {
mutex_unlock(&data->mutex);
return ret;
}
data->trigger_on = state;
if (data->motion_trig == trig)
data->motion_trigger_on = state;
else
data->dready_trigger_on = state;
mutex_unlock(&data->mutex);
return 0;
@ -692,10 +1025,124 @@ static const struct iio_trigger_ops kxcjk1013_trigger_ops = {
.owner = THIS_MODULE,
};
static int kxcjk1013_acpi_gpio_probe(struct i2c_client *client,
struct kxcjk1013_data *data)
static irqreturn_t kxcjk1013_event_handler(int irq, void *private)
{
struct iio_dev *indio_dev = private;
struct kxcjk1013_data *data = iio_priv(indio_dev);
int ret;
ret = i2c_smbus_read_byte_data(data->client, KXCJK1013_REG_INT_SRC1);
if (ret < 0) {
dev_err(&data->client->dev, "Error reading reg_int_src1\n");
goto ack_intr;
}
if (ret & 0x02) {
ret = i2c_smbus_read_byte_data(data->client,
KXCJK1013_REG_INT_SRC2);
if (ret < 0) {
dev_err(&data->client->dev,
"Error reading reg_int_src2\n");
goto ack_intr;
}
if (ret & KXCJK1013_REG_INT_SRC2_BIT_XN)
iio_push_event(indio_dev,
IIO_MOD_EVENT_CODE(IIO_ACCEL,
0,
IIO_MOD_X,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
data->timestamp);
if (ret & KXCJK1013_REG_INT_SRC2_BIT_XP)
iio_push_event(indio_dev,
IIO_MOD_EVENT_CODE(IIO_ACCEL,
0,
IIO_MOD_X,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
data->timestamp);
if (ret & KXCJK1013_REG_INT_SRC2_BIT_YN)
iio_push_event(indio_dev,
IIO_MOD_EVENT_CODE(IIO_ACCEL,
0,
IIO_MOD_Y,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
data->timestamp);
if (ret & KXCJK1013_REG_INT_SRC2_BIT_YP)
iio_push_event(indio_dev,
IIO_MOD_EVENT_CODE(IIO_ACCEL,
0,
IIO_MOD_Y,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
data->timestamp);
if (ret & KXCJK1013_REG_INT_SRC2_BIT_ZN)
iio_push_event(indio_dev,
IIO_MOD_EVENT_CODE(IIO_ACCEL,
0,
IIO_MOD_Z,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_FALLING),
data->timestamp);
if (ret & KXCJK1013_REG_INT_SRC2_BIT_ZP)
iio_push_event(indio_dev,
IIO_MOD_EVENT_CODE(IIO_ACCEL,
0,
IIO_MOD_Z,
IIO_EV_TYPE_THRESH,
IIO_EV_DIR_RISING),
data->timestamp);
}
ack_intr:
if (data->dready_trigger_on)
return IRQ_HANDLED;
ret = i2c_smbus_read_byte_data(data->client, KXCJK1013_REG_INT_REL);
if (ret < 0)
dev_err(&data->client->dev, "Error reading reg_int_rel\n");
return IRQ_HANDLED;
}
static irqreturn_t kxcjk1013_data_rdy_trig_poll(int irq, void *private)
{
struct iio_dev *indio_dev = private;
struct kxcjk1013_data *data = iio_priv(indio_dev);
data->timestamp = iio_get_time_ns();
if (data->dready_trigger_on)
iio_trigger_poll(data->dready_trig);
else if (data->motion_trigger_on)
iio_trigger_poll(data->motion_trig);
if (data->ev_enable_state)
return IRQ_WAKE_THREAD;
else
return IRQ_HANDLED;
}
static const char *kxcjk1013_match_acpi_device(struct device *dev,
enum kx_chipset *chipset)
{
const struct acpi_device_id *id;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return NULL;
*chipset = (enum kx_chipset)id->driver_data;
return dev_name(dev);
}
static int kxcjk1013_gpio_probe(struct i2c_client *client,
struct kxcjk1013_data *data)
{
struct device *dev;
struct gpio_desc *gpio;
int ret;
@ -704,12 +1151,6 @@ static int kxcjk1013_acpi_gpio_probe(struct i2c_client *client,
return -EINVAL;
dev = &client->dev;
if (!ACPI_HANDLE(dev))
return -ENODEV;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return -ENODEV;
/* data ready gpio interrupt pin */
gpio = devm_gpiod_get_index(dev, "kxcjk1013_int", 0);
@ -734,8 +1175,8 @@ static int kxcjk1013_probe(struct i2c_client *client,
{
struct kxcjk1013_data *data;
struct iio_dev *indio_dev;
struct iio_trigger *trig = NULL;
struct kxcjk_1013_platform_data *pdata;
const char *name;
int ret;
indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*data));
@ -752,6 +1193,15 @@ static int kxcjk1013_probe(struct i2c_client *client,
else
data->active_high_intr = true; /* default polarity */
if (id) {
data->chipset = (enum kx_chipset)(id->driver_data);
name = id->name;
} else if (ACPI_HANDLE(&client->dev)) {
name = kxcjk1013_match_acpi_device(&client->dev,
&data->chipset);
} else
return -ENODEV;
ret = kxcjk1013_chip_init(data);
if (ret < 0)
return ret;
@ -761,41 +1211,54 @@ static int kxcjk1013_probe(struct i2c_client *client,
indio_dev->dev.parent = &client->dev;
indio_dev->channels = kxcjk1013_channels;
indio_dev->num_channels = ARRAY_SIZE(kxcjk1013_channels);
indio_dev->name = KXCJK1013_DRV_NAME;
indio_dev->name = name;
indio_dev->modes = INDIO_DIRECT_MODE;
indio_dev->info = &kxcjk1013_info;
if (client->irq < 0)
client->irq = kxcjk1013_acpi_gpio_probe(client, data);
client->irq = kxcjk1013_gpio_probe(client, data);
if (client->irq >= 0) {
trig = iio_trigger_alloc("%s-dev%d", indio_dev->name,
indio_dev->id);
if (!trig)
return -ENOMEM;
data->trig_mode = true;
ret = devm_request_irq(&client->dev, client->irq,
iio_trigger_generic_data_rdy_poll,
ret = devm_request_threaded_irq(&client->dev, client->irq,
kxcjk1013_data_rdy_trig_poll,
kxcjk1013_event_handler,
IRQF_TRIGGER_RISING,
KXCJK1013_IRQ_NAME,
trig);
if (ret) {
dev_err(&client->dev, "unable to request IRQ\n");
goto err_trigger_free;
}
trig->dev.parent = &client->dev;
trig->ops = &kxcjk1013_trigger_ops;
iio_trigger_set_drvdata(trig, indio_dev);
data->trig = trig;
indio_dev->trig = trig;
iio_trigger_get(indio_dev->trig);
ret = iio_trigger_register(trig);
indio_dev);
if (ret)
goto err_trigger_free;
return ret;
data->dready_trig = devm_iio_trigger_alloc(&client->dev,
"%s-dev%d",
indio_dev->name,
indio_dev->id);
if (!data->dready_trig)
return -ENOMEM;
data->motion_trig = devm_iio_trigger_alloc(&client->dev,
"%s-any-motion-dev%d",
indio_dev->name,
indio_dev->id);
if (!data->motion_trig)
return -ENOMEM;
data->dready_trig->dev.parent = &client->dev;
data->dready_trig->ops = &kxcjk1013_trigger_ops;
iio_trigger_set_drvdata(data->dready_trig, indio_dev);
indio_dev->trig = data->dready_trig;
iio_trigger_get(indio_dev->trig);
ret = iio_trigger_register(data->dready_trig);
if (ret)
return ret;
data->motion_trig->dev.parent = &client->dev;
data->motion_trig->ops = &kxcjk1013_trigger_ops;
iio_trigger_set_drvdata(data->motion_trig, indio_dev);
ret = iio_trigger_register(data->motion_trig);
if (ret) {
data->motion_trig = NULL;
goto err_trigger_unregister;
}
ret = iio_triggered_buffer_setup(indio_dev,
&iio_pollfunc_store_time,
@ -828,14 +1291,13 @@ static int kxcjk1013_probe(struct i2c_client *client,
err_iio_unregister:
iio_device_unregister(indio_dev);
err_buffer_cleanup:
if (data->trig_mode)
if (data->dready_trig)
iio_triggered_buffer_cleanup(indio_dev);
err_trigger_unregister:
if (data->trig_mode)
iio_trigger_unregister(trig);
err_trigger_free:
if (data->trig_mode)
iio_trigger_free(trig);
if (data->dready_trig)
iio_trigger_unregister(data->dready_trig);
if (data->motion_trig)
iio_trigger_unregister(data->motion_trig);
return ret;
}
@ -851,10 +1313,10 @@ static int kxcjk1013_remove(struct i2c_client *client)
iio_device_unregister(indio_dev);
if (data->trig_mode) {
if (data->dready_trig) {
iio_triggered_buffer_cleanup(indio_dev);
iio_trigger_unregister(data->trig);
iio_trigger_free(data->trig);
iio_trigger_unregister(data->dready_trig);
iio_trigger_unregister(data->motion_trig);
}
mutex_lock(&data->mutex);
@ -886,7 +1348,8 @@ static int kxcjk1013_resume(struct device *dev)
mutex_lock(&data->mutex);
/* Check, if the suspend occured while active */
if (data->trigger_on)
if (data->dready_trigger_on || data->motion_trigger_on ||
data->ev_enable_state)
ret = kxcjk1013_set_mode(data, OPERATION);
mutex_unlock(&data->mutex);
@ -931,13 +1394,17 @@ static const struct dev_pm_ops kxcjk1013_pm_ops = {
};
static const struct acpi_device_id kx_acpi_match[] = {
{"KXCJ1013", 0},
{"KXCJ1013", KXCJK1013},
{"KXCJ1008", KXCJ91008},
{"KXTJ1009", KXTJ21009},
{ },
};
MODULE_DEVICE_TABLE(acpi, kx_acpi_match);
static const struct i2c_device_id kxcjk1013_id[] = {
{"kxcjk1013", 0},
{"kxcjk1013", KXCJK1013},
{"kxcj91008", KXCJ91008},
{"kxtj21009", KXTJ21009},
{}
};

2
drivers/iio/adc/at91_adc.c
View File

@ -266,7 +266,7 @@ static irqreturn_t at91_adc_trigger_handler(int irq, void *p)
}
/* Handler for classic adc channel eoc trigger */
void handle_adc_eoc_trigger(int irq, struct iio_dev *idev)
static void handle_adc_eoc_trigger(int irq, struct iio_dev *idev)
{
struct at91_adc_state *st = iio_priv(idev);

1
drivers/iio/adc/exynos_adc.c
View File

@ -723,7 +723,6 @@ static struct platform_driver exynos_adc_driver = {
.remove = exynos_adc_remove,
.driver = {
.name = "exynos-adc",
.owner = THIS_MODULE,
.of_match_table = exynos_adc_match,
.pm = &exynos_adc_pm_ops,
},

1
drivers/iio/adc/lp8788_adc.c
View File

@ -244,7 +244,6 @@ static struct platform_driver lp8788_adc_driver = {
.remove = lp8788_adc_remove,
.driver = {
.name = LP8788_DEV_ADC,
.owner = THIS_MODULE,
},
};
module_platform_driver(lp8788_adc_driver);

1
drivers/iio/adc/rockchip_saradc.c
View File

@ -141,7 +141,6 @@ static int rockchip_saradc_probe(struct platform_device *pdev)
struct resource *mem;
int ret;
int irq;
u32 rate;
if (!np)
return -ENODEV;

1
drivers/iio/adc/ti_am335x_adc.c
View File

@ -545,7 +545,6 @@ MODULE_DEVICE_TABLE(of, ti_adc_dt_ids);
static struct platform_driver tiadc_driver = {
.driver = {
.name = "TI-am335x-adc",
.owner = THIS_MODULE,
.pm = TIADC_PM_OPS,
.of_match_table = ti_adc_dt_ids,
},

1
drivers/iio/adc/twl4030-madc.c
View File

@ -883,7 +883,6 @@ static struct platform_driver twl4030_madc_driver = {
.remove = twl4030_madc_remove,
.driver = {
.name = "twl4030_madc",
.owner = THIS_MODULE,
.of_match_table = of_match_ptr(twl_madc_of_match),
},
};

1
drivers/iio/adc/twl6030-gpadc.c
View File

@ -994,7 +994,6 @@ static struct platform_driver twl6030_gpadc_driver = {
.remove = twl6030_gpadc_remove,
.driver = {
.name = DRIVER_NAME,
.owner = THIS_MODULE,
.pm = &twl6030_gpadc_pm_ops,
.of_match_table = of_twl6030_match_tbl,
},

1
drivers/iio/adc/vf610_adc.c
View File

@ -698,7 +698,6 @@ static struct platform_driver vf610_adc_driver = {
.remove = vf610_adc_remove,
.driver = {
.name = DRIVER_NAME,
.owner = THIS_MODULE,
.of_match_table = vf610_adc_match,
.pm = &vf610_adc_pm_ops,
},

1
drivers/iio/adc/viperboard_adc.c
View File

@ -145,7 +145,6 @@ static int vprbrd_adc_probe(struct platform_device *pdev)
static struct platform_driver vprbrd_adc_driver = {
.driver = {
.name = "viperboard-adc",
.owner = THIS_MODULE,
},
.probe = vprbrd_adc_probe,
};

5
drivers/iio/common/st_sensors/st_sensors_core.c
View File

@ -306,8 +306,11 @@ int st_sensors_init_sensor(struct iio_dev *indio_dev,
if (of_pdata)
pdata = of_pdata;
if (pdata)
if (pdata) {
err = st_sensors_set_drdy_int_pin(indio_dev, pdata);
if (err < 0)
return err;
}
err = st_sensors_set_enable(indio_dev, false);
if (err < 0)

11
drivers/iio/gyro/Kconfig
View File

@ -50,6 +50,17 @@ config ADXRS450
This driver can also be built as a module. If so, the module
will be called adxrs450.
config BMG160
tristate "BOSCH BMG160 Gyro Sensor"
depends on I2C
select IIO_TRIGGERED_BUFFER if IIO_BUFFER
help
Say yes here to build support for Bosch BMG160 Tri-axis Gyro Sensor
driver. This driver also supports BMI055 gyroscope.
This driver can also be built as a module. If so, the module
will be called bmg160.
config HID_SENSOR_GYRO_3D
depends on HID_SENSOR_HUB
select IIO_BUFFER

1
drivers/iio/gyro/Makefile
View File

@ -8,6 +8,7 @@ obj-$(CONFIG_ADIS16130) += adis16130.o
obj-$(CONFIG_ADIS16136) += adis16136.o
obj-$(CONFIG_ADIS16260) += adis16260.o
obj-$(CONFIG_ADXRS450) += adxrs450.o
obj-$(CONFIG_BMG160) += bmg160.o
obj-$(CONFIG_HID_SENSOR_GYRO_3D) += hid-sensor-gyro-3d.o

1228
drivers/iio/gyro/bmg160.c Normal file
View File

File diff suppressed because it is too large Load Diff

1
drivers/iio/gyro/hid-sensor-gyro-3d.c
View File

@ -416,7 +416,6 @@ static struct platform_driver hid_gyro_3d_platform_driver = {
.id_table = hid_gyro_3d_ids,
.driver = {
.name = KBUILD_MODNAME,
.owner = THIS_MODULE,
},
.probe = hid_gyro_3d_probe,
.remove = hid_gyro_3d_remove,

1
drivers/iio/humidity/dht11.c
View File

@ -281,7 +281,6 @@ static int dht11_probe(struct platform_device *pdev)
static struct platform_driver dht11_driver = {
.driver = {
.name = DRIVER_NAME,
.owner = THIS_MODULE,
.of_match_table = dht11_dt_ids,
},
.probe = dht11_probe,

3
drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
View File

@ -673,8 +673,7 @@ static int inv_mpu_probe(struct i2c_client *client,
st = iio_priv(indio_dev);
st->client = client;
pdata = (struct inv_mpu6050_platform_data
*)dev_get_platdata(&client->dev);
pdata = dev_get_platdata(&client->dev);
if (pdata)
st->plat_data = *pdata;
/* power is turned on inside check chip type*/

10
drivers/iio/light/Kconfig
View File

@ -17,6 +17,16 @@ config ADJD_S311
This driver can also be built as a module. If so, the module
will be called adjd_s311.
config AL3320A
tristate "AL3320A ambient light sensor"
depends on I2C
help
Say Y here if you want to build a driver for the Dyna Image AL3320A
ambient light sensor.
To compile this driver as a module, choose M here: the
module will be called al3320a.
config APDS9300
tristate "APDS9300 ambient light sensor"
depends on I2C

1
drivers/iio/light/Makefile
View File

@ -4,6 +4,7 @@
# When adding new entries keep the list in alphabetical order
obj-$(CONFIG_ADJD_S311) += adjd_s311.o
obj-$(CONFIG_AL3320A) += al3320a.o
obj-$(CONFIG_APDS9300) += apds9300.o
obj-$(CONFIG_CM32181) += cm32181.o
obj-$(CONFIG_CM36651) += cm36651.o

232
drivers/iio/light/al3320a.c Normal file
View File

@ -0,0 +1,232 @@
/*
* AL3320A - Dyna Image Ambient Light Sensor
*
* Copyright (c) 2014, Intel Corporation.
*
* This file is subject to the terms and conditions of version 2 of
* the GNU General Public License. See the file COPYING in the main
* directory of this archive for more details.
*
* IIO driver for AL3320A (7-bit I2C slave address 0x1C).
*
* TODO: interrupt support, thresholds
*
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
#define AL3320A_DRV_NAME "al3320a"
#define AL3320A_REG_CONFIG 0x00
#define AL3320A_REG_STATUS 0x01
#define AL3320A_REG_INT 0x02
#define AL3320A_REG_WAIT 0x06
#define AL3320A_REG_CONFIG_RANGE 0x07
#define AL3320A_REG_PERSIST 0x08
#define AL3320A_REG_MEAN_TIME 0x09
#define AL3320A_REG_ADUMMY 0x0A
#define AL3320A_REG_DATA_LOW 0x22
#define AL3320A_REG_LOW_THRESH_LOW 0x30
#define AL3320A_REG_LOW_THRESH_HIGH 0x31
#define AL3320A_REG_HIGH_THRESH_LOW 0x32
#define AL3320A_REG_HIGH_THRESH_HIGH 0x33
#define AL3320A_CONFIG_DISABLE 0x00
#define AL3320A_CONFIG_ENABLE 0x01
#define AL3320A_GAIN_SHIFT 1
#define AL3320A_GAIN_MASK (BIT(2) | BIT(1))
/* chip params default values */
#define AL3320A_DEFAULT_MEAN_TIME 4
#define AL3320A_DEFAULT_WAIT_TIME 0 /* no waiting */
#define AL3320A_SCALE_AVAILABLE "0.512 0.128 0.032 0.01"
enum al3320a_range {
AL3320A_RANGE_1, /* 33.28 Klx */
AL3320A_RANGE_2, /* 8.32 Klx */
AL3320A_RANGE_3, /* 2.08 Klx */
AL3320A_RANGE_4 /* 0.65 Klx */
};
static const int al3320a_scales[][2] = {
{0, 512000}, {0, 128000}, {0, 32000}, {0, 10000}
};
struct al3320a_data {
struct i2c_client *client;
};
static const struct iio_chan_spec al3320a_channels[] = {
{
.type = IIO_LIGHT,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) |
BIT(IIO_CHAN_INFO_SCALE),
}
};
static IIO_CONST_ATTR(in_illuminance_scale_available, AL3320A_SCALE_AVAILABLE);
static struct attribute *al3320a_attributes[] = {
&iio_const_attr_in_illuminance_scale_available.dev_attr.attr,
NULL,
};
static const struct attribute_group al3320a_attribute_group = {
.attrs = al3320a_attributes,
};
static int al3320a_init(struct al3320a_data *data)
{
int ret;
/* power on */
ret = i2c_smbus_write_byte_data(data->client, AL3320A_REG_CONFIG,
AL3320A_CONFIG_ENABLE);
if (ret < 0)
return ret;
ret = i2c_smbus_write_byte_data(data->client, AL3320A_REG_CONFIG_RANGE,
AL3320A_RANGE_3 << AL3320A_GAIN_SHIFT);
if (ret < 0)
return ret;
ret = i2c_smbus_write_byte_data(data->client, AL3320A_REG_MEAN_TIME,
AL3320A_DEFAULT_MEAN_TIME);
if (ret < 0)
return ret;
ret = i2c_smbus_write_byte_data(data->client, AL3320A_REG_WAIT,
AL3320A_DEFAULT_WAIT_TIME);
if (ret < 0)
return ret;
return 0;
}
static int al3320a_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan, int *val,
int *val2, long mask)
{
struct al3320a_data *data = iio_priv(indio_dev);
int ret;
switch (mask) {
case IIO_CHAN_INFO_RAW:
/*
* ALS ADC value is stored in two adjacent registers:
* - low byte of output is stored at AL3320A_REG_DATA_LOW
* - high byte of output is stored at AL3320A_REG_DATA_LOW + 1
*/
ret = i2c_smbus_read_word_data(data->client,
AL3320A_REG_DATA_LOW);
if (ret < 0)
return ret;
*val = ret;
return IIO_VAL_INT;
case IIO_CHAN_INFO_SCALE:
ret = i2c_smbus_read_byte_data(data->client,
AL3320A_REG_CONFIG_RANGE);
if (ret < 0)
return ret;
ret = (ret & AL3320A_GAIN_MASK) >> AL3320A_GAIN_SHIFT;
*val = al3320a_scales[ret][0];
*val2 = al3320a_scales[ret][1];
return IIO_VAL_INT_PLUS_MICRO;
}
return -EINVAL;
}
static int al3320a_write_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan, int val,
int val2, long mask)
{
struct al3320a_data *data = iio_priv(indio_dev);
int i;
switch (mask) {
case IIO_CHAN_INFO_SCALE:
for (i = 0; i < ARRAY_SIZE(al3320a_scales); i++) {
if (val == al3320a_scales[i][0] &&
val2 == al3320a_scales[i][1])
return i2c_smbus_write_byte_data(data->client,
AL3320A_REG_CONFIG_RANGE,
i << AL3320A_GAIN_SHIFT);
}
break;
}
return -EINVAL;
}
static const struct iio_info al3320a_info = {
.driver_module = THIS_MODULE,
.read_raw = al3320a_read_raw,
.write_raw = al3320a_write_raw,
.attrs = &al3320a_attribute_group,
};
static int al3320a_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct al3320a_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;
indio_dev->dev.parent = &client->dev;
indio_dev->info = &al3320a_info;
indio_dev->name = AL3320A_DRV_NAME;
indio_dev->channels = al3320a_channels;
indio_dev->num_channels = ARRAY_SIZE(al3320a_channels);
indio_dev->modes = INDIO_DIRECT_MODE;
ret = al3320a_init(data);
if (ret < 0) {
dev_err(&client->dev, "al3320a chip init failed\n");
return ret;
}
return devm_iio_device_register(&client->dev, indio_dev);
}
static int al3320a_remove(struct i2c_client *client)
{
return i2c_smbus_write_byte_data(client, AL3320A_REG_CONFIG,
AL3320A_CONFIG_DISABLE);
}
static const struct i2c_device_id al3320a_id[] = {
{"al3320a", 0},
{}
};
MODULE_DEVICE_TABLE(i2c, al3320a_id);
static struct i2c_driver al3320a_driver = {
.driver = {
.name = AL3320A_DRV_NAME,
},
.probe = al3320a_probe,
.remove = al3320a_remove,
.id_table = al3320a_id,
};
module_i2c_driver(al3320a_driver);
MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com>");
MODULE_DESCRIPTION("AL3320A Ambient Light Sensor driver");
MODULE_LICENSE("GPL v2");

1
drivers/iio/light/hid-sensor-als.c
View File

@ -381,7 +381,6 @@ static struct platform_driver hid_als_platform_driver = {
.id_table = hid_als_ids,
.driver = {
.name = KBUILD_MODNAME,
.owner = THIS_MODULE,
},
.probe = hid_als_probe,
.remove = hid_als_remove,

1
drivers/iio/light/hid-sensor-prox.c
View File

@ -373,7 +373,6 @@ static struct platform_driver hid_prox_platform_driver = {
.id_table = hid_prox_ids,
.driver = {
.name = KBUILD_MODNAME,
.owner = THIS_MODULE,
},
.probe = hid_prox_probe,
.remove = hid_prox_remove,

1
drivers/iio/light/lm3533-als.c
View File

@ -915,7 +915,6 @@ static int lm3533_als_remove(struct platform_device *pdev)
static struct platform_driver lm3533_als_driver = {
.driver = {
.name = "lm3533-als",
.owner = THIS_MODULE,
},
.probe = lm3533_als_probe,
.remove = lm3533_als_remove,

8
drivers/iio/magnetometer/ak8975.c
View File

@ -477,7 +477,7 @@ static const struct acpi_device_id ak_acpi_match[] = {
};
MODULE_DEVICE_TABLE(acpi, ak_acpi_match);
static char *ak8975_match_acpi_device(struct device *dev,
static const char *ak8975_match_acpi_device(struct device *dev,
enum asahi_compass_chipset *chipset)
{
const struct acpi_device_id *id;
@ -487,7 +487,7 @@ static char *ak8975_match_acpi_device(struct device *dev,
return NULL;
*chipset = (int)id->driver_data;
return (char *)dev_name(dev);
return dev_name(dev);
}
static int ak8975_probe(struct i2c_client *client,
@ -497,7 +497,7 @@ static int ak8975_probe(struct i2c_client *client,
struct iio_dev *indio_dev;
int eoc_gpio;
int err;
char *name = NULL;
const char *name = NULL;
/* Grab and set up the supplied GPIO. */
if (client->dev.platform_data)
@ -539,7 +539,7 @@ static int ak8975_probe(struct i2c_client *client,
if (id) {
data->chipset =
(enum asahi_compass_chipset)(id->driver_data);
name = (char *) id->name;
name = id->name;
} else if (ACPI_HANDLE(&client->dev))
name = ak8975_match_acpi_device(&client->dev, &data->chipset);
else

1
drivers/iio/magnetometer/hid-sensor-magn-3d.c
View File

@ -530,7 +530,6 @@ static struct platform_driver hid_magn_3d_platform_driver = {
.id_table = hid_magn_3d_ids,
.driver = {
.name = KBUILD_MODNAME,
.owner = THIS_MODULE,
},
.probe = hid_magn_3d_probe,
.remove = hid_magn_3d_remove,

1
drivers/iio/orientation/hid-sensor-incl-3d.c
View File

@ -437,7 +437,6 @@ static struct platform_driver hid_incl_3d_platform_driver = {
.id_table = hid_incl_3d_ids,
.driver = {
.name = KBUILD_MODNAME,
.owner = THIS_MODULE,
},
.probe = hid_incl_3d_probe,
.remove = hid_incl_3d_remove,

1
drivers/iio/orientation/hid-sensor-rotation.c
View File

@ -334,7 +334,6 @@ static struct platform_driver hid_dev_rot_platform_driver = {
.id_table = hid_dev_rot_ids,
.driver = {
.name = KBUILD_MODNAME,
.owner = THIS_MODULE,
},
.probe = hid_dev_rot_probe,
.remove = hid_dev_rot_remove,

1
drivers/iio/pressure/hid-sensor-press.c
View File

@ -382,7 +382,6 @@ static struct platform_driver hid_press_platform_driver = {
.id_table = hid_press_ids,
.driver = {
.name = KBUILD_MODNAME,
.owner = THIS_MODULE,
},
.probe = hid_press_probe,
.remove = hid_press_remove,

1
drivers/iio/trigger/iio-trig-interrupt.c
View File

@ -109,7 +109,6 @@ static struct platform_driver iio_interrupt_trigger_driver = {
.remove = iio_interrupt_trigger_remove,
.driver = {
.name = "iio_interrupt_trigger",
.owner = THIS_MODULE,
},
};

2
drivers/staging/iio/adc/ad7606_core.c
View File

@ -140,7 +140,7 @@ static ssize_t ad7606_store_range(struct device *dev,
return count;
}
static IIO_DEVICE_ATTR(in_voltage_range, S_IRUGO | S_IWUSR, \
static IIO_DEVICE_ATTR(in_voltage_range, S_IRUGO | S_IWUSR,
ad7606_show_range, ad7606_store_range, 0);
static IIO_CONST_ATTR(in_voltage_range_available, "5000 10000");

205
drivers/staging/iio/light/isl29018.c
View File

@ -1,5 +1,5 @@
/*
* A iio driver for the light sensor ISL 29018.
* A iio driver for the light sensor ISL 29018/29023/29035.
*
* IIO driver for monitoring ambient light intensity in luxi, proximity
* sensing and infrared sensing.
@ -30,6 +30,7 @@
#include <linux/slab.h>
#include <linux/iio/iio.h>
#include <linux/iio/sysfs.h>
#include <linux/acpi.h>
#define CONVERSION_TIME_MS 100
@ -58,10 +59,18 @@
#define ISL29018_TEST_SHIFT 0
#define ISL29018_TEST_MASK (0xFF << ISL29018_TEST_SHIFT)
#define ISL29035_REG_DEVICE_ID 0x0F
#define ISL29035_DEVICE_ID_SHIFT 0x03
#define ISL29035_DEVICE_ID_MASK (0x7 << ISL29035_DEVICE_ID_SHIFT)
#define ISL29035_DEVICE_ID 0x5
#define ISL29035_BOUT_SHIFT 0x07
#define ISL29035_BOUT_MASK (0x01 << ISL29035_BOUT_SHIFT)
struct isl29018_chip {
struct device *dev;
struct regmap *regmap;
struct mutex lock;
int type;
unsigned int lux_scale;
unsigned int lux_uscale;
unsigned int range;
@ -407,23 +416,35 @@ static int isl29018_read_raw(struct iio_dev *indio_dev,
return ret;
}
#define ISL29018_LIGHT_CHANNEL { \
.type = IIO_LIGHT, \
.indexed = 1, \
.channel = 0, \
.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) | \
BIT(IIO_CHAN_INFO_CALIBSCALE), \
}
#define ISL29018_IR_CHANNEL { \
.type = IIO_INTENSITY, \
.modified = 1, \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
.channel2 = IIO_MOD_LIGHT_IR, \
}
#define ISL29018_PROXIMITY_CHANNEL { \
.type = IIO_PROXIMITY, \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW), \
}
static const struct iio_chan_spec isl29018_channels[] = {
{
.type = IIO_LIGHT,
.indexed = 1,
.channel = 0,
.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
BIT(IIO_CHAN_INFO_CALIBSCALE),
}, {
.type = IIO_INTENSITY,
.modified = 1,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
.channel2 = IIO_MOD_LIGHT_IR,
}, {
/* Unindexed in current ABI. But perhaps it should be. */
.type = IIO_PROXIMITY,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW),
}
ISL29018_LIGHT_CHANNEL,
ISL29018_IR_CHANNEL,
ISL29018_PROXIMITY_CHANNEL,
};
static const struct iio_chan_spec isl29023_channels[] = {
ISL29018_LIGHT_CHANNEL,
ISL29018_IR_CHANNEL,
};
static IIO_DEVICE_ATTR(range, S_IRUGO | S_IWUSR, show_range, store_range, 0);
@ -447,16 +468,63 @@ static struct attribute *isl29018_attributes[] = {
NULL
};
static const struct attribute_group isl29108_group = {
static struct attribute *isl29023_attributes[] = {
ISL29018_DEV_ATTR(range),
ISL29018_CONST_ATTR(range_available),
ISL29018_DEV_ATTR(adc_resolution),
ISL29018_CONST_ATTR(adc_resolution_available),
NULL
};
static const struct attribute_group isl29018_group = {
.attrs = isl29018_attributes,
};
static const struct attribute_group isl29023_group = {
.attrs = isl29023_attributes,
};
static int isl29035_detect(struct isl29018_chip *chip)
{
int status;
unsigned int id;
status = regmap_read(chip->regmap, ISL29035_REG_DEVICE_ID, &id);
if (status < 0) {
dev_err(chip->dev,
"Error reading ID register with error %d\n",
status);
return status;
}
id = (id & ISL29035_DEVICE_ID_MASK) >> ISL29035_DEVICE_ID_SHIFT;
if (id != ISL29035_DEVICE_ID)
return -ENODEV;
/* clear out brownout bit */
return regmap_update_bits(chip->regmap, ISL29035_REG_DEVICE_ID,
ISL29035_BOUT_MASK, 0);
}
enum {
isl29018,
isl29023,
isl29035,
};
static int isl29018_chip_init(struct isl29018_chip *chip)
{
int status;
unsigned int new_adc_bit;
unsigned int new_range;
if (chip->type == isl29035) {
status = isl29035_detect(chip);
if (status < 0)
return status;
}
/* Code added per Intersil Application Note 1534:
* When VDD sinks to approximately 1.8V or below, some of
* the part's registers may change their state. When VDD
@ -510,8 +578,15 @@ static int isl29018_chip_init(struct isl29018_chip *chip)
return 0;
}
static const struct iio_info isl29108_info = {
.attrs = &isl29108_group,
static const struct iio_info isl29018_info = {
.attrs = &isl29018_group,
.driver_module = THIS_MODULE,
.read_raw = &isl29018_read_raw,
.write_raw = &isl29018_write_raw,
};
static const struct iio_info isl29023_info = {
.attrs = &isl29023_group,
.driver_module = THIS_MODULE,
.read_raw = &isl29018_read_raw,
.write_raw = &isl29018_write_raw,
@ -524,6 +599,7 @@ static bool is_volatile_reg(struct device *dev, unsigned int reg)
case ISL29018_REG_ADD_DATA_MSB:
case ISL29018_REG_ADD_COMMAND1:
case ISL29018_REG_TEST:
case ISL29035_REG_DEVICE_ID:
return true;
default:
return false;
@ -543,12 +619,66 @@ static const struct regmap_config isl29018_regmap_config = {
.cache_type = REGCACHE_RBTREE,
};
/* isl29035_regmap_config: regmap configuration for ISL29035 */
static const struct regmap_config isl29035_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.volatile_reg = is_volatile_reg,
.max_register = ISL29035_REG_DEVICE_ID,
.num_reg_defaults_raw = ISL29035_REG_DEVICE_ID + 1,
.cache_type = REGCACHE_RBTREE,
};
struct chip_info {
const struct iio_chan_spec *channels;
int num_channels;
const struct iio_info *indio_info;
const struct regmap_config *regmap_cfg;
};
static const struct chip_info chip_info_tbl[] = {
[isl29018] = {
.channels = isl29018_channels,
.num_channels = ARRAY_SIZE(isl29018_channels),
.indio_info = &isl29018_info,
.regmap_cfg = &isl29018_regmap_config,
},
[isl29023] = {
.channels = isl29023_channels,
.num_channels = ARRAY_SIZE(isl29023_channels),
.indio_info = &isl29023_info,
.regmap_cfg = &isl29018_regmap_config,
},
[isl29035] = {
.channels = isl29023_channels,
.num_channels = ARRAY_SIZE(isl29023_channels),
.indio_info = &isl29023_info,
.regmap_cfg = &isl29035_regmap_config,
},
};
static const char *isl29018_match_acpi_device(struct device *dev, int *data)
{
const struct acpi_device_id *id;
id = acpi_match_device(dev->driver->acpi_match_table, dev);
if (!id)
return NULL;
*data = (int) id->driver_data;
return dev_name(dev);
}
static int isl29018_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct isl29018_chip *chip;
struct iio_dev *indio_dev;
int err;
const char *name = NULL;
int dev_id = 0;
indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*chip));
if (indio_dev == NULL) {
@ -560,15 +690,25 @@ static int isl29018_probe(struct i2c_client *client,
i2c_set_clientdata(client, indio_dev);
chip->dev = &client->dev;
if (id) {
name = id->name;
dev_id = id->driver_data;
}
if (ACPI_HANDLE(&client->dev))
name = isl29018_match_acpi_device(&client->dev, &dev_id);
mutex_init(&chip->lock);
chip->type = dev_id;
chip->lux_scale = 1;
chip->lux_uscale = 0;
chip->range = 1000;
chip->adc_bit = 16;
chip->suspended = false;
chip->regmap = devm_regmap_init_i2c(client, &isl29018_regmap_config);
chip->regmap = devm_regmap_init_i2c(client,
chip_info_tbl[dev_id].regmap_cfg);
if (IS_ERR(chip->regmap)) {
err = PTR_ERR(chip->regmap);
dev_err(chip->dev, "regmap initialization failed: %d\n", err);
@ -579,10 +719,10 @@ static int isl29018_probe(struct i2c_client *client,
if (err)
return err;
indio_dev->info = &isl29108_info;
indio_dev->channels = isl29018_channels;
indio_dev->num_channels = ARRAY_SIZE(isl29018_channels);
indio_dev->name = id->name;
indio_dev->info = chip_info_tbl[dev_id].indio_info;
indio_dev->channels = chip_info_tbl[dev_id].channels;
indio_dev->num_channels = chip_info_tbl[dev_id].num_channels;
indio_dev->name = name;
indio_dev->dev.parent = &client->dev;
indio_dev->modes = INDIO_DIRECT_MODE;
err = devm_iio_device_register(&client->dev, indio_dev);
@ -632,8 +772,18 @@ static SIMPLE_DEV_PM_OPS(isl29018_pm_ops, isl29018_suspend, isl29018_resume);
#define ISL29018_PM_OPS NULL
#endif
static const struct acpi_device_id isl29018_acpi_match[] = {
{"ISL29018", isl29018},
{"ISL29023", isl29023},
{"ISL29035", isl29035},
{},
};
MODULE_DEVICE_TABLE(acpi, isl29018_acpi_match);
static const struct i2c_device_id isl29018_id[] = {
{"isl29018", 0},
{"isl29018", isl29018},
{"isl29023", isl29023},
{"isl29035", isl29035},
{}
};
@ -641,6 +791,8 @@ MODULE_DEVICE_TABLE(i2c, isl29018_id);
static const struct of_device_id isl29018_of_match[] = {
{ .compatible = "isil,isl29018", },
{ .compatible = "isil,isl29023", },
{ .compatible = "isil,isl29035", },
{ },
};
MODULE_DEVICE_TABLE(of, isl29018_of_match);
@ -649,6 +801,7 @@ static struct i2c_driver isl29018_driver = {
.class = I2C_CLASS_HWMON,
.driver = {
.name = "isl29018",
.acpi_match_table = ACPI_PTR(isl29018_acpi_match),
.pm = ISL29018_PM_OPS,
.owner = THIS_MODULE,
.of_match_table = isl29018_of_match,