forked from Minki/linux
iio:st_pressure:initial lps22hb sensor support
Initial support for ST LPS22HB pressure sensor. Datasheet: http://www2.st.com/resource/en/datasheet/lps22hb.pdf Features: * pressure data and timestamping channels * sampling frequency selection * interrupt based trigger * over I2C or SPI Signed-off-by: Gregor Boirie <gregor.boirie@parrot.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
parent
ef2d71d6b7
commit
e039e2f5b4
@ -64,3 +64,4 @@ Pressure sensors:
|
||||
- st,lps001wp-press
|
||||
- st,lps25h-press
|
||||
- st,lps331ap-press
|
||||
- st,lps22hb-press
|
||||
|
@ -131,7 +131,7 @@ config IIO_ST_PRESS
|
||||
select IIO_TRIGGERED_BUFFER if (IIO_BUFFER)
|
||||
help
|
||||
Say yes here to build support for STMicroelectronics pressure
|
||||
sensors: LPS001WP, LPS25H, LPS331AP.
|
||||
sensors: LPS001WP, LPS25H, LPS331AP, LPS22HB.
|
||||
|
||||
This driver can also be built as a module. If so, these modules
|
||||
will be created:
|
||||
|
@ -17,6 +17,7 @@
|
||||
#define LPS001WP_PRESS_DEV_NAME "lps001wp"
|
||||
#define LPS25H_PRESS_DEV_NAME "lps25h"
|
||||
#define LPS331AP_PRESS_DEV_NAME "lps331ap"
|
||||
#define LPS22HB_PRESS_DEV_NAME "lps22hb"
|
||||
|
||||
/**
|
||||
* struct st_sensors_platform_data - default press platform data
|
||||
|
@ -113,6 +113,26 @@
|
||||
#define ST_PRESS_LPS25H_OUT_XL_ADDR 0x28
|
||||
#define ST_TEMP_LPS25H_OUT_L_ADDR 0x2b
|
||||
|
||||
/* CUSTOM VALUES FOR LPS22HB SENSOR */
|
||||
#define ST_PRESS_LPS22HB_WAI_EXP 0xb1
|
||||
#define ST_PRESS_LPS22HB_ODR_ADDR 0x10
|
||||
#define ST_PRESS_LPS22HB_ODR_MASK 0x70
|
||||
#define ST_PRESS_LPS22HB_ODR_AVL_1HZ_VAL 0x01
|
||||
#define ST_PRESS_LPS22HB_ODR_AVL_10HZ_VAL 0x02
|
||||
#define ST_PRESS_LPS22HB_ODR_AVL_25HZ_VAL 0x03
|
||||
#define ST_PRESS_LPS22HB_ODR_AVL_50HZ_VAL 0x04
|
||||
#define ST_PRESS_LPS22HB_ODR_AVL_75HZ_VAL 0x05
|
||||
#define ST_PRESS_LPS22HB_PW_ADDR 0x10
|
||||
#define ST_PRESS_LPS22HB_PW_MASK 0x70
|
||||
#define ST_PRESS_LPS22HB_BDU_ADDR 0x10
|
||||
#define ST_PRESS_LPS22HB_BDU_MASK 0x02
|
||||
#define ST_PRESS_LPS22HB_DRDY_IRQ_ADDR 0x12
|
||||
#define ST_PRESS_LPS22HB_DRDY_IRQ_INT1_MASK 0x04
|
||||
#define ST_PRESS_LPS22HB_DRDY_IRQ_INT2_MASK 0x08
|
||||
#define ST_PRESS_LPS22HB_IHL_IRQ_ADDR 0x12
|
||||
#define ST_PRESS_LPS22HB_IHL_IRQ_MASK 0x80
|
||||
#define ST_PRESS_LPS22HB_MULTIREAD_BIT true
|
||||
|
||||
static const struct iio_chan_spec st_press_1_channels[] = {
|
||||
{
|
||||
.type = IIO_PRESSURE,
|
||||
@ -183,6 +203,27 @@ static const struct iio_chan_spec st_press_lps001wp_channels[] = {
|
||||
IIO_CHAN_SOFT_TIMESTAMP(1)
|
||||
};
|
||||
|
||||
static const struct iio_chan_spec st_press_lps22hb_channels[] = {
|
||||
{
|
||||
.type = IIO_PRESSURE,
|
||||
.channel2 = IIO_NO_MOD,
|
||||
.address = ST_PRESS_1_OUT_XL_ADDR,
|
||||
.scan_index = 0,
|
||||
.scan_type = {
|
||||
.sign = 'u',
|
||||
.realbits = 24,
|
||||
.storagebits = 24,
|
||||
.endianness = IIO_LE,
|
||||
},
|
||||
.info_mask_separate =
|
||||
BIT(IIO_CHAN_INFO_RAW) |
|
||||
BIT(IIO_CHAN_INFO_SCALE),
|
||||
.info_mask_shared_by_all = BIT(IIO_CHAN_INFO_SAMP_FREQ),
|
||||
.modified = 0,
|
||||
},
|
||||
IIO_CHAN_SOFT_TIMESTAMP(1)
|
||||
};
|
||||
|
||||
static const struct st_sensor_settings st_press_sensors_settings[] = {
|
||||
{
|
||||
.wai = ST_PRESS_LPS331AP_WAI_EXP,
|
||||
@ -326,6 +367,51 @@ static const struct st_sensor_settings st_press_sensors_settings[] = {
|
||||
.multi_read_bit = ST_PRESS_LPS25H_MULTIREAD_BIT,
|
||||
.bootime = 2,
|
||||
},
|
||||
{
|
||||
.wai = ST_PRESS_LPS22HB_WAI_EXP,
|
||||
.wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS,
|
||||
.sensors_supported = {
|
||||
[0] = LPS22HB_PRESS_DEV_NAME,
|
||||
},
|
||||
.ch = (struct iio_chan_spec *)st_press_lps22hb_channels,
|
||||
.num_ch = ARRAY_SIZE(st_press_lps22hb_channels),
|
||||
.odr = {
|
||||
.addr = ST_PRESS_LPS22HB_ODR_ADDR,
|
||||
.mask = ST_PRESS_LPS22HB_ODR_MASK,
|
||||
.odr_avl = {
|
||||
{ 1, ST_PRESS_LPS22HB_ODR_AVL_1HZ_VAL, },
|
||||
{ 10, ST_PRESS_LPS22HB_ODR_AVL_10HZ_VAL, },
|
||||
{ 25, ST_PRESS_LPS22HB_ODR_AVL_25HZ_VAL, },
|
||||
{ 50, ST_PRESS_LPS22HB_ODR_AVL_50HZ_VAL, },
|
||||
{ 75, ST_PRESS_LPS22HB_ODR_AVL_75HZ_VAL, },
|
||||
},
|
||||
},
|
||||
.pw = {
|
||||
.addr = ST_PRESS_LPS22HB_PW_ADDR,
|
||||
.mask = ST_PRESS_LPS22HB_PW_MASK,
|
||||
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
|
||||
},
|
||||
.fs = {
|
||||
.fs_avl = {
|
||||
[0] = {
|
||||
.num = ST_PRESS_FS_AVL_1260MB,
|
||||
.gain = ST_PRESS_KPASCAL_NANO_SCALE,
|
||||
},
|
||||
},
|
||||
},
|
||||
.bdu = {
|
||||
.addr = ST_PRESS_LPS22HB_BDU_ADDR,
|
||||
.mask = ST_PRESS_LPS22HB_BDU_MASK,
|
||||
},
|
||||
.drdy_irq = {
|
||||
.addr = ST_PRESS_LPS22HB_DRDY_IRQ_ADDR,
|
||||
.mask_int1 = ST_PRESS_LPS22HB_DRDY_IRQ_INT1_MASK,
|
||||
.mask_int2 = ST_PRESS_LPS22HB_DRDY_IRQ_INT2_MASK,
|
||||
.addr_ihl = ST_PRESS_LPS22HB_IHL_IRQ_ADDR,
|
||||
.mask_ihl = ST_PRESS_LPS22HB_IHL_IRQ_MASK,
|
||||
},
|
||||
.multi_read_bit = ST_PRESS_LPS22HB_MULTIREAD_BIT,
|
||||
},
|
||||
};
|
||||
|
||||
static int st_press_write_raw(struct iio_dev *indio_dev,
|
||||
@ -454,7 +540,6 @@ int st_press_common_probe(struct iio_dev *indio_dev)
|
||||
indio_dev->channels = press_data->sensor_settings->ch;
|
||||
indio_dev->num_channels = press_data->sensor_settings->num_ch;
|
||||
|
||||
if (press_data->sensor_settings->fs.addr != 0)
|
||||
press_data->current_fullscale =
|
||||
(struct st_sensor_fullscale_avl *)
|
||||
&press_data->sensor_settings->fs.fs_avl[0];
|
||||
|
@ -32,6 +32,10 @@ static const struct of_device_id st_press_of_match[] = {
|
||||
.compatible = "st,lps331ap-press",
|
||||
.data = LPS331AP_PRESS_DEV_NAME,
|
||||
},
|
||||
{
|
||||
.compatible = "st,lps22hb-press",
|
||||
.data = LPS22HB_PRESS_DEV_NAME,
|
||||
},
|
||||
{},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(of, st_press_of_match);
|
||||
|
@ -50,6 +50,7 @@ static const struct spi_device_id st_press_id_table[] = {
|
||||
{ LPS001WP_PRESS_DEV_NAME },
|
||||
{ LPS25H_PRESS_DEV_NAME },
|
||||
{ LPS331AP_PRESS_DEV_NAME },
|
||||
{ LPS22HB_PRESS_DEV_NAME },
|
||||
{},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(spi, st_press_id_table);
|
||||
|
Loading…
Reference in New Issue
Block a user