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First round of fixes for IIO in 3.7 cycle, applies to 3.7-rc1.

Browse source 
Mostly a round of fixes for Analog Devices MEMs devices where some
 offset values were either completely incorrect, or in the wrong units.
 
 Also removal of an accidental duplicate entry in a Kconfig file.
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Merge tag 'iio-fixes-for-3.7a' of git://git.kernel.org/pub/scm/linux/kernel/git/jic23/iio into staging-linus

First round of fixes for IIO in 3.7 cycle, applies to 3.7-rc1.

Mostly a round of fixes for Analog Devices MEMs devices where some
offset values were either completely incorrect, or in the wrong units.

Also removal of an accidental duplicate entry in a Kconfig file.
This commit is contained in:
Greg Kroah-Hartman 2012-10-20 10:07:29 -07:00
parent ddffeb8c4d 98f9c3c137
commit 47c153088b
12 changed files with 148 additions and 97 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/iio/Kconfig
View file

@ -62,7 +62,6 @@ source "drivers/iio/frequency/Kconfig"
source "drivers/iio/dac/Kconfig"
source "drivers/iio/common/Kconfig"
source "drivers/iio/gyro/Kconfig"
source "drivers/iio/light/Kconfig"
source "drivers/iio/magnetometer/Kconfig"
endif # IIO

1
drivers/iio/Makefile
View file

@ -18,5 +18,4 @@ obj-y += frequency/
obj-y += dac/
obj-y += common/
obj-y += gyro/
obj-y += light/
obj-y += magnetometer/

24
drivers/staging/iio/accel/adis16201_core.c
View file

@ -310,30 +310,32 @@ static int adis16201_read_raw(struct iio_dev *indio_dev,
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
case IIO_VOLTAGE:
*val = 0;
if (chan->channel == 0)
*val2 = 1220;
else
*val2 = 610;
if (chan->channel == 0) {
*val = 1;
*val2 = 220000; /* 1.22 mV */
} else {
*val = 0;
*val2 = 610000; /* 0.610 mV */
}
return IIO_VAL_INT_PLUS_MICRO;
case IIO_TEMP:
*val = 0;
*val2 = -470000;
*val = -470; /* 0.47 C */
*val2 = 0;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_ACCEL:
*val = 0;
*val2 = 462500;
return IIO_VAL_INT_PLUS_MICRO;
*val2 = IIO_G_TO_M_S_2(462400); /* 0.4624 mg */
return IIO_VAL_INT_PLUS_NANO;
case IIO_INCLI:
*val = 0;
*val2 = 100000;
*val2 = 100000; /* 0.1 degree */
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
}
break;
case IIO_CHAN_INFO_OFFSET:
*val = 25;
*val = 25000 / -470 - 1278; /* 25 C = 1278 */
return IIO_VAL_INT;
case IIO_CHAN_INFO_CALIBBIAS:
switch (chan->type) {

20
drivers/staging/iio/accel/adis16203_core.c
View file

@ -316,25 +316,27 @@ static int adis16203_read_raw(struct iio_dev *indio_dev,
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
case IIO_VOLTAGE:
*val = 0;
if (chan->channel == 0)
*val2 = 1220;
else
*val2 = 610;
if (chan->channel == 0) {
*val = 1;
*val2 = 220000; /* 1.22 mV */
} else {
*val = 0;
*val2 = 610000; /* 0.61 mV */
}
return IIO_VAL_INT_PLUS_MICRO;
case IIO_TEMP:
*val = 0;
*val2 = -470000;
*val = -470; /* -0.47 C */
*val2 = 0;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_INCLI:
*val = 0;
*val2 = 25000;
*val2 = 25000; /* 0.025 degree */
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
}
case IIO_CHAN_INFO_OFFSET:
*val = 25;
*val = 25000 / -470 - 1278; /* 25 C = 1278 */
return IIO_VAL_INT;
case IIO_CHAN_INFO_CALIBBIAS:
bits = 14;

22
drivers/staging/iio/accel/adis16204_core.c
View file

@ -317,26 +317,28 @@ static int adis16204_read_raw(struct iio_dev *indio_dev,
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
case IIO_VOLTAGE:
*val = 0;
if (chan->channel == 0)
*val2 = 1220;
else
*val2 = 610;
if (chan->channel == 0) {
*val = 1;
*val2 = 220000; /* 1.22 mV */
} else {
*val = 0;
*val2 = 610000; /* 0.61 mV */
}
return IIO_VAL_INT_PLUS_MICRO;
case IIO_TEMP:
*val = 0;
*val2 = -470000;
*val = -470; /* 0.47 C */
*val2 = 0;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_ACCEL:
*val = 0;
switch (chan->channel2) {
case IIO_MOD_X:
case IIO_MOD_ROOT_SUM_SQUARED_X_Y:
*val2 = 17125;
*val2 = IIO_G_TO_M_S_2(17125); /* 17.125 mg */
break;
case IIO_MOD_Y:
case IIO_MOD_Z:
*val2 = 8407;
*val2 = IIO_G_TO_M_S_2(8407); /* 8.407 mg */
break;
}
return IIO_VAL_INT_PLUS_MICRO;
@ -345,7 +347,7 @@ static int adis16204_read_raw(struct iio_dev *indio_dev,
}
break;
case IIO_CHAN_INFO_OFFSET:
*val = 25;
*val = 25000 / -470 - 1278; /* 25 C = 1278 */
return IIO_VAL_INT;
case IIO_CHAN_INFO_CALIBBIAS:
case IIO_CHAN_INFO_PEAK:

18
drivers/staging/iio/accel/adis16209_core.c
View file

@ -343,28 +343,29 @@ static int adis16209_read_raw(struct iio_dev *indio_dev,
case IIO_VOLTAGE:
*val = 0;
if (chan->channel == 0)
*val2 = 305180;
*val2 = 305180; /* 0.30518 mV */
else
*val2 = 610500;
*val2 = 610500; /* 0.6105 mV */
return IIO_VAL_INT_PLUS_MICRO;
case IIO_TEMP:
*val = 0;
*val2 = -470000;
*val = -470; /* -0.47 C */
*val2 = 0;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_ACCEL:
*val = 0;
*val2 = 2394;
return IIO_VAL_INT_PLUS_MICRO;
*val2 = IIO_G_TO_M_S_2(244140); /* 0.244140 mg */
return IIO_VAL_INT_PLUS_NANO;
case IIO_INCLI:
case IIO_ROT:
*val = 0;
*val2 = 436;
*val2 = 25000; /* 0.025 degree */
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
}
break;
case IIO_CHAN_INFO_OFFSET:
*val = 25;
*val = 25000 / -470 - 0x4FE; /* 25 C = 0x4FE */
return IIO_VAL_INT;
case IIO_CHAN_INFO_CALIBBIAS:
switch (chan->type) {
@ -491,6 +492,7 @@ static const struct iio_chan_spec adis16209_channels[] = {
.modified = 1,
.channel2 = IIO_MOD_X,
.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT,
IIO_CHAN_INFO_SCALE_SHARED_BIT,
.address = rot,
.scan_index = ADIS16209_SCAN_ROT,
.scan_type = {

19
drivers/staging/iio/accel/adis16220_core.c
View file

@ -486,7 +486,7 @@ static int adis16220_read_raw(struct iio_dev *indio_dev,
break;
case IIO_CHAN_INFO_OFFSET:
if (chan->type == IIO_TEMP) {
*val = 25;
*val = 25000 / -470 - 1278; /* 25 C = 1278 */
return IIO_VAL_INT;
}
addrind = 1;
@ -495,19 +495,22 @@ static int adis16220_read_raw(struct iio_dev *indio_dev,
addrind = 2;
break;
case IIO_CHAN_INFO_SCALE:
*val = 0;
switch (chan->type) {
case IIO_TEMP:
*val2 = -470000;
*val = -470; /* -0.47 C */
*val2 = 0;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_ACCEL:
*val2 = 1887042;
*val2 = IIO_G_TO_M_S_2(19073); /* 19.073 g */
return IIO_VAL_INT_PLUS_MICRO;
case IIO_VOLTAGE:
if (chan->channel == 0)
*val2 = 0012221;
else /* Should really be dependent on VDD */
*val2 = 305;
if (chan->channel == 0) {
*val = 1;
*val2 = 220700; /* 1.2207 mV */
} else {
/* Should really be dependent on VDD */
*val2 = 305180; /* 305.18 uV */
}
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;

23
drivers/staging/iio/accel/adis16240_core.c
View file

@ -373,30 +373,31 @@ static int adis16240_read_raw(struct iio_dev *indio_dev,
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
case IIO_VOLTAGE:
*val = 0;
if (chan->channel == 0)
*val2 = 4880;
else
if (chan->channel == 0) {
*val = 4;
*val2 = 880000; /* 4.88 mV */
return IIO_VAL_INT_PLUS_MICRO;
} else {
return -EINVAL;
return IIO_VAL_INT_PLUS_MICRO;
}
case IIO_TEMP:
*val = 0;
*val2 = 244000;
*val = 244; /* 0.244 C */
*val2 = 0;
return IIO_VAL_INT_PLUS_MICRO;
case IIO_ACCEL:
*val = 0;
*val2 = 504062;
*val2 = IIO_G_TO_M_S_2(51400); /* 51.4 mg */
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
}
break;
case IIO_CHAN_INFO_PEAK_SCALE:
*val = 6;
*val2 = 629295;
*val = 0;
*val2 = IIO_G_TO_M_S_2(51400); /* 51.4 mg */
return IIO_VAL_INT_PLUS_MICRO;
case IIO_CHAN_INFO_OFFSET:
*val = 25;
*val = 25000 / 244 - 0x133; /* 25 C = 0x133 */
return IIO_VAL_INT;
case IIO_CHAN_INFO_CALIBBIAS:
bits = 10;

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) {

2
drivers/staging/iio/imu/adis16400.h
View file

@ -139,6 +139,8 @@ struct adis16400_chip_info {
const long flags;
unsigned int gyro_scale_micro;
unsigned int accel_scale_micro;
int temp_scale_nano;
int temp_offset;
unsigned long default_scan_mask;
};

70
drivers/staging/iio/imu/adis16400_core.c
View file

@ -553,10 +553,13 @@ static int adis16400_read_raw(struct iio_dev *indio_dev,
return IIO_VAL_INT_PLUS_MICRO;
case IIO_VOLTAGE:
*val = 0;
if (chan->channel == 0)
*val2 = 2418;
else
*val2 = 806;
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;
@ -564,11 +567,11 @@ static int adis16400_read_raw(struct iio_dev *indio_dev,
return IIO_VAL_INT_PLUS_MICRO;
case IIO_MAGN:
*val = 0;
*val2 = 500;
*val2 = 500; /* 0.5 mgauss */
return IIO_VAL_INT_PLUS_MICRO;
case IIO_TEMP:
*val = 0;
*val2 = 140000;
*val = st->variant->temp_scale_nano / 1000000;
*val2 = (st->variant->temp_scale_nano % 1000000);
return IIO_VAL_INT_PLUS_MICRO;
default:
return -EINVAL;
@ -586,9 +589,8 @@ static int adis16400_read_raw(struct iio_dev *indio_dev,
return IIO_VAL_INT;
case IIO_CHAN_INFO_OFFSET:
/* currently only temperature */
*val = 198;
*val2 = 160000;
return IIO_VAL_INT_PLUS_MICRO;
*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 */
@ -1035,7 +1037,7 @@ static const struct iio_chan_spec adis16334_channels[] = {
.indexed = 1,
.channel = 0,
.info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT |
IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |
IIO_CHAN_INFO_SCALE_SHARED_BIT,
.address = temp0,
.scan_index = ADIS16400_SCAN_TEMP,
@ -1058,8 +1060,10 @@ static struct adis16400_chip_info adis16400_chips[] = {
[ADIS16300] = {
.channels = adis16300_channels,
.num_channels = ARRAY_SIZE(adis16300_channels),
.gyro_scale_micro = 873,
.gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */
.accel_scale_micro = 5884,
.temp_scale_nano = 140000000, /* 0.14 C */
.temp_offset = 25000000 / 140000, /* 25 C = 0x00 */
.default_scan_mask = (1 << ADIS16400_SCAN_SUPPLY) |
(1 << ADIS16400_SCAN_GYRO_X) | (1 << ADIS16400_SCAN_ACC_X) |
(1 << ADIS16400_SCAN_ACC_Y) | (1 << ADIS16400_SCAN_ACC_Z) |
@ -1070,8 +1074,10 @@ static struct adis16400_chip_info adis16400_chips[] = {
[ADIS16334] = {
.channels = adis16334_channels,
.num_channels = ARRAY_SIZE(adis16334_channels),
.gyro_scale_micro = 873,
.accel_scale_micro = 981,
.gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */
.accel_scale_micro = IIO_G_TO_M_S_2(1000), /* 1 mg */
.temp_scale_nano = 67850000, /* 0.06785 C */
.temp_offset = 25000000 / 67850, /* 25 C = 0x00 */
.default_scan_mask = (1 << ADIS16400_SCAN_GYRO_X) |
(1 << ADIS16400_SCAN_GYRO_Y) | (1 << ADIS16400_SCAN_GYRO_Z) |
(1 << ADIS16400_SCAN_ACC_X) | (1 << ADIS16400_SCAN_ACC_Y) |
@ -1080,8 +1086,10 @@ static struct adis16400_chip_info adis16400_chips[] = {
[ADIS16350] = {
.channels = adis16350_channels,
.num_channels = ARRAY_SIZE(adis16350_channels),
.gyro_scale_micro = 872664,
.accel_scale_micro = 24732,
.gyro_scale_micro = IIO_DEGREE_TO_RAD(73260), /* 0.07326 deg/s */
.accel_scale_micro = IIO_G_TO_M_S_2(2522), /* 0.002522 g */
.temp_scale_nano = 145300000, /* 0.1453 C */
.temp_offset = 25000000 / 145300, /* 25 C = 0x00 */
.default_scan_mask = 0x7FF,
.flags = ADIS16400_NO_BURST,
},
@ -1090,8 +1098,10 @@ static struct adis16400_chip_info adis16400_chips[] = {
.num_channels = ARRAY_SIZE(adis16350_channels),
.flags = ADIS16400_HAS_PROD_ID,
.product_id = 0x3FE8,
.gyro_scale_micro = 1279,
.accel_scale_micro = 24732,
.gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */
.accel_scale_micro = IIO_G_TO_M_S_2(3333), /* 3.333 mg */
.temp_scale_nano = 136000000, /* 0.136 C */
.temp_offset = 25000000 / 136000, /* 25 C = 0x00 */
.default_scan_mask = 0x7FF,
},
[ADIS16362] = {
@ -1099,8 +1109,10 @@ static struct adis16400_chip_info adis16400_chips[] = {
.num_channels = ARRAY_SIZE(adis16350_channels),
.flags = ADIS16400_HAS_PROD_ID,
.product_id = 0x3FEA,
.gyro_scale_micro = 1279,
.accel_scale_micro = 24732,
.gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */
.accel_scale_micro = IIO_G_TO_M_S_2(333), /* 0.333 mg */
.temp_scale_nano = 136000000, /* 0.136 C */
.temp_offset = 25000000 / 136000, /* 25 C = 0x00 */
.default_scan_mask = 0x7FF,
},
[ADIS16364] = {
@ -1108,8 +1120,10 @@ static struct adis16400_chip_info adis16400_chips[] = {
.num_channels = ARRAY_SIZE(adis16350_channels),
.flags = ADIS16400_HAS_PROD_ID,
.product_id = 0x3FEC,
.gyro_scale_micro = 1279,
.accel_scale_micro = 24732,
.gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */
.accel_scale_micro = IIO_G_TO_M_S_2(1000), /* 1 mg */
.temp_scale_nano = 136000000, /* 0.136 C */
.temp_offset = 25000000 / 136000, /* 25 C = 0x00 */
.default_scan_mask = 0x7FF,
},
[ADIS16365] = {
@ -1117,8 +1131,10 @@ static struct adis16400_chip_info adis16400_chips[] = {
.num_channels = ARRAY_SIZE(adis16350_channels),
.flags = ADIS16400_HAS_PROD_ID,
.product_id = 0x3FED,
.gyro_scale_micro = 1279,
.accel_scale_micro = 24732,
.gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */
.accel_scale_micro = IIO_G_TO_M_S_2(1000), /* 1 mg */
.temp_scale_nano = 136000000, /* 0.136 C */
.temp_offset = 25000000 / 136000, /* 25 C = 0x00 */
.default_scan_mask = 0x7FF,
},
[ADIS16400] = {
@ -1126,9 +1142,11 @@ static struct adis16400_chip_info adis16400_chips[] = {
.num_channels = ARRAY_SIZE(adis16400_channels),
.flags = ADIS16400_HAS_PROD_ID,
.product_id = 0x4015,
.gyro_scale_micro = 873,
.accel_scale_micro = 32656,
.gyro_scale_micro = IIO_DEGREE_TO_RAD(50000), /* 0.05 deg/s */
.accel_scale_micro = IIO_G_TO_M_S_2(3333), /* 3.333 mg */
.default_scan_mask = 0xFFF,
.temp_scale_nano = 140000000, /* 0.14 C */
.temp_offset = 25000000 / 140000, /* 25 C = 0x00 */
}
};

16
include/linux/iio/iio.h
View file

@ -618,4 +618,20 @@ static inline struct dentry *iio_get_debugfs_dentry(struct iio_dev *indio_dev)
};
#endif
/**
* IIO_DEGREE_TO_RAD() - Convert degree to rad
* @deg: A value in degree
*
* Returns the given value converted from degree to rad
*/
#define IIO_DEGREE_TO_RAD(deg) (((deg) * 314159ULL + 9000000ULL) / 18000000ULL)
/**
* IIO_G_TO_M_S_2() - Convert g to meter / second**2
* @g: A value in g
*
* Returns the given value converted from g to meter / second**2
*/
#define IIO_G_TO_M_S_2(g) ((g) * 980665ULL / 100000ULL)
#endif /* _INDUSTRIAL_IO_H_ */