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authorStefan Popa <stefan.popa@analog.com>2019-02-27 19:14:27 +0300
committerJonathan Cameron <Jonathan.Cameron@huawei.com>2019-04-04 22:19:43 +0300
commit82e7a1b2501709cce9294b744224e70cc3be96cd (patch)
treed6b6eca327945831d6b0976485c140c1af771492 /drivers/iio/imu
parent83ec2d5404bfdf3aa67abfc594d0e6118d16ac06 (diff)
downloadlinux-82e7a1b2501709cce9294b744224e70cc3be96cd.tar.xz
iio: imu: adis16480: Add support for ADIS1649x family of devices
The ADIS16495 and ADIS16497 are inertial systems that include a triaxis gyroscope and a triaxis accelerometer. The serial peripheral interface (SPI) provide a simple interface for data collection and configuration control. The devices are similar to ADIS16475, ADIS16480, ADIS16485 and ADIS16488, the main differences are highlighted below: * The temperature data scale is 0.00565 C/LSB for ADIS16475 and ADIS1648x devices, while for ADIS1649x 0.0125 C/LSB. * ADIS1649x devices support different gyroscope measurement ranges which are dependent on the dash number (-1, -2, -3), see Table 24 in the ADIS16495 datasheet. However, the ADIS16497 gyroscopes have the same scale as ADIS16495. * ADIS16495 devices support the acceleration maximum range of 8g, while ADIS16497 devices go up to 40g. * The internal clock for ADIS1649x devices is 4.25 kSPS. The sampling frequency is calculated by applying a decimation rate which can take a maximum value of 4250. * ADIS1649x devices support different default filter frequencies. Datasheets: Link: https://www.analog.com/media/en/technical-documentation/data-sheets/adis16495.pdf Link: https://www.analog.com/media/en/technical-documentation/data-sheets/adis16497.pdf Signed-off-by: Stefan Popa <stefan.popa@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Diffstat (limited to 'drivers/iio/imu')
-rw-r--r--drivers/iio/imu/adis16480.c97
1 files changed, 97 insertions, 0 deletions
diff --git a/drivers/iio/imu/adis16480.c b/drivers/iio/imu/adis16480.c
index c90375da8129..28cece3cc868 100644
--- a/drivers/iio/imu/adis16480.c
+++ b/drivers/iio/imu/adis16480.c
@@ -453,6 +453,13 @@ static const unsigned int adis16480_def_filter_freqs[] = {
63,
};
+static const unsigned int adis16495_def_filter_freqs[] = {
+ 300,
+ 100,
+ 300,
+ 100,
+};
+
static const unsigned int ad16480_filter_data[][2] = {
[ADIS16480_SCAN_GYRO_X] = { ADIS16480_REG_FILTER_BNK0, 0 },
[ADIS16480_SCAN_GYRO_Y] = { ADIS16480_REG_FILTER_BNK0, 3 },
@@ -713,6 +720,12 @@ enum adis16480_variant {
ADIS16480,
ADIS16485,
ADIS16488,
+ ADIS16495_1,
+ ADIS16495_2,
+ ADIS16495_3,
+ ADIS16497_1,
+ ADIS16497_2,
+ ADIS16497_3,
};
static const struct adis16480_chip_info adis16480_chip_info[] = {
@@ -769,6 +782,78 @@ static const struct adis16480_chip_info adis16480_chip_info[] = {
.max_dec_rate = 2048,
.filter_freqs = adis16480_def_filter_freqs,
},
+ [ADIS16495_1] = {
+ .channels = adis16485_channels,
+ .num_channels = ARRAY_SIZE(adis16485_channels),
+ .gyro_max_val = IIO_RAD_TO_DEGREE(20000),
+ .gyro_max_scale = 125,
+ .accel_max_val = IIO_M_S_2_TO_G(32000),
+ .accel_max_scale = 8,
+ .temp_scale = 12500, /* 12.5 milli degree Celsius */
+ .int_clk = 4250000,
+ .max_dec_rate = 4250,
+ .filter_freqs = adis16495_def_filter_freqs,
+ },
+ [ADIS16495_2] = {
+ .channels = adis16485_channels,
+ .num_channels = ARRAY_SIZE(adis16485_channels),
+ .gyro_max_val = IIO_RAD_TO_DEGREE(18000),
+ .gyro_max_scale = 450,
+ .accel_max_val = IIO_M_S_2_TO_G(32000),
+ .accel_max_scale = 8,
+ .temp_scale = 12500, /* 12.5 milli degree Celsius */
+ .int_clk = 4250000,
+ .max_dec_rate = 4250,
+ .filter_freqs = adis16495_def_filter_freqs,
+ },
+ [ADIS16495_3] = {
+ .channels = adis16485_channels,
+ .num_channels = ARRAY_SIZE(adis16485_channels),
+ .gyro_max_val = IIO_RAD_TO_DEGREE(20000),
+ .gyro_max_scale = 2000,
+ .accel_max_val = IIO_M_S_2_TO_G(32000),
+ .accel_max_scale = 8,
+ .temp_scale = 12500, /* 12.5 milli degree Celsius */
+ .int_clk = 4250000,
+ .max_dec_rate = 4250,
+ .filter_freqs = adis16495_def_filter_freqs,
+ },
+ [ADIS16497_1] = {
+ .channels = adis16485_channels,
+ .num_channels = ARRAY_SIZE(adis16485_channels),
+ .gyro_max_val = IIO_RAD_TO_DEGREE(20000),
+ .gyro_max_scale = 125,
+ .accel_max_val = IIO_M_S_2_TO_G(32000),
+ .accel_max_scale = 40,
+ .temp_scale = 12500, /* 12.5 milli degree Celsius */
+ .int_clk = 4250000,
+ .max_dec_rate = 4250,
+ .filter_freqs = adis16495_def_filter_freqs,
+ },
+ [ADIS16497_2] = {
+ .channels = adis16485_channels,
+ .num_channels = ARRAY_SIZE(adis16485_channels),
+ .gyro_max_val = IIO_RAD_TO_DEGREE(18000),
+ .gyro_max_scale = 450,
+ .accel_max_val = IIO_M_S_2_TO_G(32000),
+ .accel_max_scale = 40,
+ .temp_scale = 12500, /* 12.5 milli degree Celsius */
+ .int_clk = 4250000,
+ .max_dec_rate = 4250,
+ .filter_freqs = adis16495_def_filter_freqs,
+ },
+ [ADIS16497_3] = {
+ .channels = adis16485_channels,
+ .num_channels = ARRAY_SIZE(adis16485_channels),
+ .gyro_max_val = IIO_RAD_TO_DEGREE(20000),
+ .gyro_max_scale = 2000,
+ .accel_max_val = IIO_M_S_2_TO_G(32000),
+ .accel_max_scale = 40,
+ .temp_scale = 12500, /* 12.5 milli degree Celsius */
+ .int_clk = 4250000,
+ .max_dec_rate = 4250,
+ .filter_freqs = adis16495_def_filter_freqs,
+ },
};
static const struct iio_info adis16480_info = {
@@ -1014,6 +1099,12 @@ static const struct spi_device_id adis16480_ids[] = {
{ "adis16480", ADIS16480 },
{ "adis16485", ADIS16485 },
{ "adis16488", ADIS16488 },
+ { "adis16495-1", ADIS16495_1 },
+ { "adis16495-2", ADIS16495_2 },
+ { "adis16495-3", ADIS16495_3 },
+ { "adis16497-1", ADIS16497_1 },
+ { "adis16497-2", ADIS16497_2 },
+ { "adis16497-3", ADIS16497_3 },
{ }
};
MODULE_DEVICE_TABLE(spi, adis16480_ids);
@@ -1023,6 +1114,12 @@ static const struct of_device_id adis16480_of_match[] = {
{ .compatible = "adi,adis16480" },
{ .compatible = "adi,adis16485" },
{ .compatible = "adi,adis16488" },
+ { .compatible = "adi,adis16495-1" },
+ { .compatible = "adi,adis16495-2" },
+ { .compatible = "adi,adis16495-3" },
+ { .compatible = "adi,adis16497-1" },
+ { .compatible = "adi,adis16497-2" },
+ { .compatible = "adi,adis16497-3" },
{ },
};
MODULE_DEVICE_TABLE(of, adis16480_of_match);