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staging:iio: Fix adis16260 channel offsets and scales

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Most of the channel offsets and scales in the adis16260 are incorrect:
	* Temperature scale is off by a factor of 1000
	* Voltage scale is off by a factor of 1000
	* Temperature offset is completely wrong

This patch fixes these issues. Also use the IIO_DEGREE_TO_RAD for the angle
velocity since this makes it much easier to compare it to the value given in the
datasheet.

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 2012-10-15 10:35:00 +01:00 committed by Jonathan Cameron
parent acba41f81f
commit 7e72a54c08
1 changed files with 17 additions and 12 deletions
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29
drivers/staging/iio/gyro/adis16260_core.c
View file

@ -498,28 +498,33 @@ static int adis16260_read_raw(struct iio_dev *indio_dev,
switch (chan->type) {
case IIO_ANGL_VEL:
*val = 0;
if (spi_get_device_id(st->us)->driver_data)
*val2 = 320;
else
*val2 = 1278;
if (spi_get_device_id(st->us)->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_VOLTAGE:
*val = 0;
if (chan->channel == 0)
*val2 = 18315;
else
*val2 = 610500;
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 = 0;
*val2 = 145300;
*val = 145;
*val2 = 300000; /* 0.1453 C */
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
}
break;
case IIO_CHAN_INFO_OFFSET:
*val = 25;
*val = 250000 / 1453; /* 25 C = 0x00 */
return IIO_VAL_INT;
case IIO_CHAN_INFO_CALIBBIAS:
switch (chan->type) {