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iio: adis16260: Add ADIS16266 support 

The ADIS16266 is mostly register compatible to the ADIS16260. The
difference is a different gyroscope scale factor as well not having the
relative angular displacement channel.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Lars-Peter Clausen 2015-08-05 15:38:18 +02:00 коммит произвёл Jonathan Cameron
Родитель 3c38676079
Коммит f1afda124b
1 изменённых файлов: 98 добавлений и 39 удалений
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137
drivers/iio/gyro/adis16260.c
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@ -101,19 +101,24 @@
#define ADIS16260_SCAN_TEMP 3 #define ADIS16260_SCAN_TEMP 3
#define ADIS16260_SCAN_ANGL 4 #define ADIS16260_SCAN_ANGL 4
/* Power down the device */ struct adis16260_chip_info {
static int adis16260_stop_device(struct iio_dev *indio_dev) unsigned int gyro_max_val;
{ unsigned int gyro_max_scale;
struct adis *adis = iio_priv(indio_dev); const struct iio_chan_spec *channels;
int ret; unsigned int num_channels;
u16 val = ADIS16260_SLP_CNT_POWER_OFF; };
ret = adis_write_reg_16(adis, ADIS16260_SLP_CNT, val); struct adis16260 {
if (ret) const struct adis16260_chip_info *info;
dev_err(&indio_dev->dev, "problem with turning device off: SLP_CNT");
return ret; struct adis adis;
} };
enum adis16260_type {
ADIS16251,
ADIS16260,
ADIS16266,
};
static const struct iio_chan_spec adis16260_channels[] = { static const struct iio_chan_spec adis16260_channels[] = {
ADIS_GYRO_CHAN(X, ADIS16260_GYRO_OUT, ADIS16260_SCAN_GYRO, ADIS_GYRO_CHAN(X, ADIS16260_GYRO_OUT, ADIS16260_SCAN_GYRO,
@ -131,6 +136,55 @@ static const struct iio_chan_spec adis16260_channels[] = {
IIO_CHAN_SOFT_TIMESTAMP(5), IIO_CHAN_SOFT_TIMESTAMP(5),
}; };
static const struct iio_chan_spec adis16266_channels[] = {
ADIS_GYRO_CHAN(X, ADIS16260_GYRO_OUT, ADIS16260_SCAN_GYRO,
BIT(IIO_CHAN_INFO_CALIBBIAS) |
BIT(IIO_CHAN_INFO_CALIBSCALE),
BIT(IIO_CHAN_INFO_SAMP_FREQ), 14),
ADIS_TEMP_CHAN(ADIS16260_TEMP_OUT, ADIS16260_SCAN_TEMP,
BIT(IIO_CHAN_INFO_SAMP_FREQ), 12),
ADIS_SUPPLY_CHAN(ADIS16260_SUPPLY_OUT, ADIS16260_SCAN_SUPPLY,
BIT(IIO_CHAN_INFO_SAMP_FREQ), 12),
ADIS_AUX_ADC_CHAN(ADIS16260_AUX_ADC, ADIS16260_SCAN_AUX_ADC,
BIT(IIO_CHAN_INFO_SAMP_FREQ), 12),
IIO_CHAN_SOFT_TIMESTAMP(4),
};
static const struct adis16260_chip_info adis16260_chip_info_table[] = {
[ADIS16251] = {
.gyro_max_scale = 80,
.gyro_max_val = IIO_RAD_TO_DEGREE(4368),
.channels = adis16260_channels,
.num_channels = ARRAY_SIZE(adis16260_channels),
},
[ADIS16260] = {
.gyro_max_scale = 320,
.gyro_max_val = IIO_RAD_TO_DEGREE(4368),
.channels = adis16260_channels,
.num_channels = ARRAY_SIZE(adis16260_channels),
},
[ADIS16266] = {
.gyro_max_scale = 14000,
.gyro_max_val = IIO_RAD_TO_DEGREE(3357),
.channels = adis16266_channels,
.num_channels = ARRAY_SIZE(adis16266_channels),
},
};
/* Power down the device */
static int adis16260_stop_device(struct iio_dev *indio_dev)
{
struct adis16260 *adis16260 = iio_priv(indio_dev);
int ret;
u16 val = ADIS16260_SLP_CNT_POWER_OFF;
ret = adis_write_reg_16(&adis16260->adis, ADIS16260_SLP_CNT, val);
if (ret)
dev_err(&indio_dev->dev, "problem with turning device off: SLP_CNT");
return ret;
}
static const u8 adis16260_addresses[][2] = { static const u8 adis16260_addresses[][2] = {
[ADIS16260_SCAN_GYRO] = { ADIS16260_GYRO_OFF, ADIS16260_GYRO_SCALE }, [ADIS16260_SCAN_GYRO] = { ADIS16260_GYRO_OFF, ADIS16260_GYRO_SCALE },
}; };
@ -140,7 +194,9 @@ static int adis16260_read_raw(struct iio_dev *indio_dev,
int *val, int *val2, int *val, int *val2,
long mask) long mask)
{ {
struct adis *adis = iio_priv(indio_dev); struct adis16260 *adis16260 = iio_priv(indio_dev);
const struct adis16260_chip_info *info = adis16260->info;
struct adis *adis = &adis16260->adis;
int ret; int ret;
u8 addr; u8 addr;
s16 val16; s16 val16;
@ -152,15 +208,9 @@ static int adis16260_read_raw(struct iio_dev *indio_dev,
case IIO_CHAN_INFO_SCALE: case IIO_CHAN_INFO_SCALE:
switch (chan->type) { switch (chan->type) {
case IIO_ANGL_VEL: case IIO_ANGL_VEL:
*val = 0; *val = info->gyro_max_scale;
if (spi_get_device_id(adis->spi)->driver_data) { *val2 = info->gyro_max_val;
/* 0.01832 degree / sec */ return IIO_VAL_FRACTIONAL;
*val2 = IIO_DEGREE_TO_RAD(18320);
} else {
/* 0.07326 degree / sec */
*val2 = IIO_DEGREE_TO_RAD(73260);
}
return IIO_VAL_INT_PLUS_MICRO;
case IIO_INCLI: case IIO_INCLI:
*val = 0; *val = 0;
*val2 = IIO_DEGREE_TO_RAD(36630); *val2 = IIO_DEGREE_TO_RAD(36630);
@ -224,7 +274,8 @@ static int adis16260_write_raw(struct iio_dev *indio_dev,
int val2, int val2,
long mask) long mask)
{ {
struct adis *adis = iio_priv(indio_dev); struct adis16260 *adis16260 = iio_priv(indio_dev);
struct adis *adis = &adis16260->adis;
int ret; int ret;
u8 addr; u8 addr;
u8 t; u8 t;
@ -305,35 +356,42 @@ static const struct adis_data adis16260_data = {
static int adis16260_probe(struct spi_device *spi) static int adis16260_probe(struct spi_device *spi)
{ {
const struct spi_device_id *id;
struct adis16260 *adis16260;
struct iio_dev *indio_dev; struct iio_dev *indio_dev;
struct adis *adis;
int ret; int ret;
id = spi_get_device_id(spi);
if (!id)
return -ENODEV;
/* setup the industrialio driver allocated elements */ /* setup the industrialio driver allocated elements */
indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*adis)); indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*adis16260));
if (!indio_dev) if (!indio_dev)
return -ENOMEM; return -ENOMEM;
adis = iio_priv(indio_dev); adis16260 = iio_priv(indio_dev);
/* this is only used for removal purposes */ /* this is only used for removal purposes */
spi_set_drvdata(spi, indio_dev); spi_set_drvdata(spi, indio_dev);
indio_dev->name = spi_get_device_id(spi)->name; adis16260->info = &adis16260_chip_info_table[id->driver_data];
indio_dev->name = id->name;
indio_dev->dev.parent = &spi->dev; indio_dev->dev.parent = &spi->dev;
indio_dev->info = &adis16260_info; indio_dev->info = &adis16260_info;
indio_dev->channels = adis16260_channels; indio_dev->channels = adis16260->info->channels;
indio_dev->num_channels = ARRAY_SIZE(adis16260_channels); indio_dev->num_channels = adis16260->info->num_channels;
indio_dev->modes = INDIO_DIRECT_MODE; indio_dev->modes = INDIO_DIRECT_MODE;
ret = adis_init(adis, indio_dev, spi, &adis16260_data); ret = adis_init(&adis16260->adis, indio_dev, spi, &adis16260_data);
if (ret) if (ret)
return ret; return ret;
ret = adis_setup_buffer_and_trigger(adis, indio_dev, NULL); ret = adis_setup_buffer_and_trigger(&adis16260->adis, indio_dev, NULL);
if (ret) if (ret)
return ret; return ret;
/* Get the device into a sane initial state */ /* Get the device into a sane initial state */
ret = adis_initial_startup(adis); ret = adis_initial_startup(&adis16260->adis);
if (ret) if (ret)
goto error_cleanup_buffer_trigger; goto error_cleanup_buffer_trigger;
ret = iio_device_register(indio_dev); ret = iio_device_register(indio_dev);
@ -343,18 +401,18 @@ static int adis16260_probe(struct spi_device *spi)
return 0; return 0;
error_cleanup_buffer_trigger: error_cleanup_buffer_trigger:
adis_cleanup_buffer_and_trigger(adis, indio_dev); adis_cleanup_buffer_and_trigger(&adis16260->adis, indio_dev);
return ret; return ret;
} }
static int adis16260_remove(struct spi_device *spi) static int adis16260_remove(struct spi_device *spi)
{ {
struct iio_dev *indio_dev = spi_get_drvdata(spi); struct iio_dev *indio_dev = spi_get_drvdata(spi);
struct adis *adis = iio_priv(indio_dev); struct adis16260 *adis16260 = iio_priv(indio_dev);
iio_device_unregister(indio_dev); iio_device_unregister(indio_dev);
adis16260_stop_device(indio_dev); adis16260_stop_device(indio_dev);
adis_cleanup_buffer_and_trigger(adis, indio_dev); adis_cleanup_buffer_and_trigger(&adis16260->adis, indio_dev);
return 0; return 0;
} }
@ -364,11 +422,12 @@ static int adis16260_remove(struct spi_device *spi)
* support for the on chip filtering. * support for the on chip filtering.
*/ */
static const struct spi_device_id adis16260_id[] = { static const struct spi_device_id adis16260_id[] = {
{"adis16260", 0}, {"adis16260", ADIS16260},
{"adis16265", 0}, {"adis16265", ADIS16260},
{"adis16250", 0}, {"adis16266", ADIS16266},
{"adis16255", 0}, {"adis16250", ADIS16260},
{"adis16251", 1}, {"adis16255", ADIS16260},
{"adis16251", ADIS16251},
{} {}
}; };
MODULE_DEVICE_TABLE(spi, adis16260_id); MODULE_DEVICE_TABLE(spi, adis16260_id);