static int adis16136_read_raw(struct iio_dev *indio_dev,
const struct iio_chan_spec *chan, int *val, int *val2, long info)
{
struct adis16136 *adis16136 = iio_priv(indio_dev);
uint32_t val32;
int ret;
switch (info) {
case IIO_CHAN_INFO_RAW:
return adis_single_conversion(indio_dev, chan, 0, val);
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
case IIO_ANGL_VEL:
*val = adis16136->chip_info->precision;
*val2 = (adis16136->chip_info->fullscale << 16);
return IIO_VAL_FRACTIONAL;
case IIO_TEMP:
*val = 10;
*val2 = 697000; /* 0.010697 degree Celsius */
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
}
case IIO_CHAN_INFO_CALIBBIAS:
ret = adis_read_reg_32(&adis16136->adis,
ADIS16136_REG_GYRO_OFF2, &val32);
if (ret < 0)
return ret;
*val = sign_extend32(val32, 31);
return IIO_VAL_INT;
case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
return adis16136_get_filter(indio_dev, val);
default:
return -EINVAL;
}
}
static int adis16400_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan, int *val, int *val2, long info)
{
struct adis16400_state *st = iio_priv(indio_dev);
int16_t val16;
int ret;
switch (info) {
case IIO_CHAN_INFO_RAW:
return adis_single_conversion(indio_dev, chan, 0, val);
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
case IIO_ANGL_VEL:
*val = 0;
*val2 = st->variant->gyro_scale_micro;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_VOLTAGE:
*val = 0;
if (chan->channel == 0) {
*val = 2;
*val2 = 418000; /* 2.418 mV */
} else {
*val = 0;
*val2 = 805800; /* 805.8 uV */
}
return IIO_VAL_INT_PLUS_MICRO;
case IIO_ACCEL:
*val = 0;
*val2 = st->variant->accel_scale_micro;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_MAGN:
*val = 0;
*val2 = 500; /* 0.5 mgauss */
return IIO_VAL_INT_PLUS_MICRO;
case IIO_TEMP:
*val = st->variant->temp_scale_nano / 1000000;
*val2 = (st->variant->temp_scale_nano % 1000000);
return IIO_VAL_INT_PLUS_MICRO;
case IIO_PRESSURE:
/* 20 uBar = 0.002kPascal */
*val = 0;
*val2 = 2000;
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
}
case IIO_CHAN_INFO_CALIBBIAS:
mutex_lock(&indio_dev->mlock);
ret = adis_read_reg_16(&st->adis,
adis16400_addresses[chan->scan_index], &val16);
mutex_unlock(&indio_dev->mlock);
if (ret)
return ret;
val16 = sign_extend32(val16, 11);
*val = val16;
return IIO_VAL_INT;
case IIO_CHAN_INFO_OFFSET:
/* currently only temperature */
*val = st->variant->temp_offset;
return IIO_VAL_INT;
case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
mutex_lock(&indio_dev->mlock);
/* Need both the number of taps and the sampling frequency */
ret = adis_read_reg_16(&st->adis,
ADIS16400_SENS_AVG,
&val16);
if (ret < 0) {
mutex_unlock(&indio_dev->mlock);
return ret;
}
ret = st->variant->get_freq(st);
if (ret >= 0) {
ret /= adis16400_3db_divisors[val16 & 0x07];
*val = ret / 1000;
*val2 = (ret % 1000) * 1000;
}
mutex_unlock(&indio_dev->mlock);
if (ret < 0)
return ret;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_CHAN_INFO_SAMP_FREQ:
ret = st->variant->get_freq(st);
if (ret < 0)
return ret;
*val = ret / 1000;
*val2 = (ret % 1000) * 1000;
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
}
}
static int adis16209_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int *val, int *val2,
long mask)
{
struct adis *st = iio_priv(indio_dev);
int ret;
int bits;
u8 addr;
s16 val16;
switch (mask) {
case IIO_CHAN_INFO_RAW:
return adis_single_conversion(indio_dev, chan,
ADIS16209_ERROR_ACTIVE, val);
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
case IIO_VOLTAGE:
*val = 0;
switch (chan->channel) {
case 0:
*val2 = 305180; /* 0.30518 mV */
break;
case 1:
*val2 = 610500; /* 0.6105 mV */
break;
default:
return -EINVAL;
}
return IIO_VAL_INT_PLUS_MICRO;
case IIO_TEMP:
*val = -470;
*val2 = 0;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_ACCEL:
/*
* IIO base unit for sensitivity of accelerometer
* is milli g.
* 1 LSB represents 0.244 mg.
*/
*val = 0;
*val2 = IIO_G_TO_M_S_2(244140);
return IIO_VAL_INT_PLUS_NANO;
case IIO_INCLI:
case IIO_ROT:
/*
* IIO base units for rotation are degrees.
* 1 LSB represents 0.025 milli degrees.
*/
*val = 0;
*val2 = 25000;
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
}
break;
case IIO_CHAN_INFO_OFFSET:
/*
* The raw ADC value is 0x4FE when the temperature
* is 25 degrees and the scale factor per milli
* degree celcius is -470.
*/
*val = 25000 / -470 - 0x4FE;
return IIO_VAL_INT;
case IIO_CHAN_INFO_CALIBBIAS:
switch (chan->type) {
case IIO_ACCEL:
bits = 14;
break;
default:
return -EINVAL;
}
addr = adis16209_addresses[chan->scan_index][0];
ret = adis_read_reg_16(st, addr, &val16);
if (ret)
return ret;
*val = sign_extend32(val16, bits - 1);
return IIO_VAL_INT;
}
return -EINVAL;
}
static int adis16260_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
int *val, int *val2,
long mask)
{
struct adis *adis = iio_priv(indio_dev);
int ret;
u8 addr;
s16 val16;
switch (mask) {
case IIO_CHAN_INFO_RAW:
return adis_single_conversion(indio_dev, chan,
ADIS16260_ERROR_ACTIVE, val);
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
case IIO_ANGL_VEL:
*val = 0;
if (spi_get_device_id(adis->spi)->driver_data) {
/* 0.01832 degree / sec */
*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:
*val = 0;
*val2 = IIO_DEGREE_TO_RAD(36630);
return IIO_VAL_INT_PLUS_MICRO;
case IIO_VOLTAGE:
if (chan->channel == 0) {
*val = 1;
*val2 = 831500; /* 1.8315 mV */
} else {
*val = 0;
*val2 = 610500; /* 610.5 uV */
}
return IIO_VAL_INT_PLUS_MICRO;
case IIO_TEMP:
*val = 145;
*val2 = 300000; /* 0.1453 C */
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
}
case IIO_CHAN_INFO_OFFSET:
*val = 250000 / 1453; /* 25 C = 0x00 */
return IIO_VAL_INT;
case IIO_CHAN_INFO_CALIBBIAS:
addr = adis16260_addresses[chan->scan_index][0];
ret = adis_read_reg_16(adis, addr, &val16);
if (ret)
return ret;
*val = sign_extend32(val16, 11);
return IIO_VAL_INT;
case IIO_CHAN_INFO_CALIBSCALE:
addr = adis16260_addresses[chan->scan_index][1];
ret = adis_read_reg_16(adis, addr, &val16);
if (ret)
return ret;
*val = val16;
return IIO_VAL_INT;
case IIO_CHAN_INFO_SAMP_FREQ:
ret = adis_read_reg_16(adis, ADIS16260_SMPL_PRD, &val16);
if (ret)
return ret;
if (spi_get_device_id(adis->spi)->driver_data)
/* If an adis16251 */
*val = (val16 & ADIS16260_SMPL_PRD_TIME_BASE) ?
8 : 256;
else
*val = (val16 & ADIS16260_SMPL_PRD_TIME_BASE) ?
66 : 2048;
*val /= (val16 & ADIS16260_SMPL_PRD_DIV_MASK) + 1;
return IIO_VAL_INT;
}
return -EINVAL;
}
