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IIO: Add support for L3GD20H gyroscope 

It can be used exactly like L3GD20 but it has a different WhoAmI
register value.

Signed-off-by: Robert Dolca <robert.dolca@intel.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
hifive-unleashed-5.1
Robert Dolca 2015-03-23 15:40:25 +02:00 committed by Jonathan Cameron
parent d9d7b99047
commit 9444a300c2
1 changed files with 83 additions and 0 deletions
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83
drivers/iio/gyro/st_gyro_core.c
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@ -87,6 +87,31 @@
#define ST_GYRO_2_DRDY_IRQ_INT2_MASK 0x08
#define ST_GYRO_2_MULTIREAD_BIT true
/* CUSTOM VALUES FOR SENSOR 3 */
#define ST_GYRO_3_WAI_EXP 0xd7
#define ST_GYRO_3_ODR_ADDR 0x20
#define ST_GYRO_3_ODR_MASK 0xc0
#define ST_GYRO_3_ODR_AVL_95HZ_VAL 0x00
#define ST_GYRO_3_ODR_AVL_190HZ_VAL 0x01
#define ST_GYRO_3_ODR_AVL_380HZ_VAL 0x02
#define ST_GYRO_3_ODR_AVL_760HZ_VAL 0x03
#define ST_GYRO_3_PW_ADDR 0x20
#define ST_GYRO_3_PW_MASK 0x08
#define ST_GYRO_3_FS_ADDR 0x23
#define ST_GYRO_3_FS_MASK 0x30
#define ST_GYRO_3_FS_AVL_250_VAL 0x00
#define ST_GYRO_3_FS_AVL_500_VAL 0x01
#define ST_GYRO_3_FS_AVL_2000_VAL 0x02
#define ST_GYRO_3_FS_AVL_250_GAIN IIO_DEGREE_TO_RAD(8750)
#define ST_GYRO_3_FS_AVL_500_GAIN IIO_DEGREE_TO_RAD(17500)
#define ST_GYRO_3_FS_AVL_2000_GAIN IIO_DEGREE_TO_RAD(70000)
#define ST_GYRO_3_BDU_ADDR 0x23
#define ST_GYRO_3_BDU_MASK 0x80
#define ST_GYRO_3_DRDY_IRQ_ADDR 0x22
#define ST_GYRO_3_DRDY_IRQ_INT2_MASK 0x08
#define ST_GYRO_3_MULTIREAD_BIT true
static const struct iio_chan_spec st_gyro_16bit_channels[] = {
ST_SENSORS_LSM_CHANNELS(IIO_ANGL_VEL,
BIT(IIO_CHAN_INFO_RAW) | BIT(IIO_CHAN_INFO_SCALE),
@ -225,6 +250,64 @@ static const struct st_sensor_settings st_gyro_sensors_settings[] = {
.multi_read_bit = ST_GYRO_2_MULTIREAD_BIT,
.bootime = 2,
},
{
.wai = ST_GYRO_3_WAI_EXP,
.sensors_supported = {
[0] = L3GD20_GYRO_DEV_NAME,
},
.ch = (struct iio_chan_spec *)st_gyro_16bit_channels,
.odr = {
.addr = ST_GYRO_3_ODR_ADDR,
.mask = ST_GYRO_3_ODR_MASK,
.odr_avl = {
{ 95, ST_GYRO_3_ODR_AVL_95HZ_VAL, },
{ 190, ST_GYRO_3_ODR_AVL_190HZ_VAL, },
{ 380, ST_GYRO_3_ODR_AVL_380HZ_VAL, },
{ 760, ST_GYRO_3_ODR_AVL_760HZ_VAL, },
},
},
.pw = {
.addr = ST_GYRO_3_PW_ADDR,
.mask = ST_GYRO_3_PW_MASK,
.value_on = ST_SENSORS_DEFAULT_POWER_ON_VALUE,
.value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE,
},
.enable_axis = {
.addr = ST_SENSORS_DEFAULT_AXIS_ADDR,
.mask = ST_SENSORS_DEFAULT_AXIS_MASK,
},
.fs = {
.addr = ST_GYRO_3_FS_ADDR,
.mask = ST_GYRO_3_FS_MASK,
.fs_avl = {
[0] = {
.num = ST_GYRO_FS_AVL_250DPS,
.value = ST_GYRO_3_FS_AVL_250_VAL,
.gain = ST_GYRO_3_FS_AVL_250_GAIN,
},
[1] = {
.num = ST_GYRO_FS_AVL_500DPS,
.value = ST_GYRO_3_FS_AVL_500_VAL,
.gain = ST_GYRO_3_FS_AVL_500_GAIN,
},
[2] = {
.num = ST_GYRO_FS_AVL_2000DPS,
.value = ST_GYRO_3_FS_AVL_2000_VAL,
.gain = ST_GYRO_3_FS_AVL_2000_GAIN,
},
},
},
.bdu = {
.addr = ST_GYRO_3_BDU_ADDR,
.mask = ST_GYRO_3_BDU_MASK,
},
.drdy_irq = {
.addr = ST_GYRO_3_DRDY_IRQ_ADDR,
.mask_int2 = ST_GYRO_3_DRDY_IRQ_INT2_MASK,
},
.multi_read_bit = ST_GYRO_3_MULTIREAD_BIT,
.bootime = 2,
},
};
static int st_gyro_read_raw(struct iio_dev *indio_dev,