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iio: imu: inv_mpu6050: add fifo temperature data support

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Add support of temperature data in fifo for all chips.
Enable unification of scan elements for icm20602.
Add macros for generating scan elements.

Signed-off-by: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
This commit is contained in:
Jean-Baptiste Maneyrol 2020-01-16 18:56:45 +01:00 committed by Jonathan Cameron
parent 71f221f8a0
commit 2e4c0a5e25
4 changed files with 90 additions and 141 deletions
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200
drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
View file

@ -104,6 +104,7 @@ static const struct inv_mpu6050_chip_config chip_config_6050 = {
.divider = INV_MPU6050_FIFO_RATE_TO_DIVIDER(INV_MPU6050_INIT_FIFO_RATE),
.gyro_fifo_enable = false,
.accl_fifo_enable = false,
.temp_fifo_enable = false,
.magn_fifo_enable = false,
.accl_fs = INV_MPU6050_FS_02G,
.user_ctrl = 0,
@ -856,19 +857,27 @@ static const struct iio_chan_spec_ext_info inv_ext_info[] = {
.ext_info = inv_ext_info, \
}
#define INV_MPU6050_TEMP_CHAN(_index) \
{ \
.type = IIO_TEMP, \
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW) \
| BIT(IIO_CHAN_INFO_OFFSET) \
| BIT(IIO_CHAN_INFO_SCALE), \
.scan_index = _index, \
.scan_type = { \
.sign = 's', \
.realbits = 16, \
.storagebits = 16, \
.shift = 0, \
.endianness = IIO_BE, \
}, \
}
static const struct iio_chan_spec inv_mpu_channels[] = {
IIO_CHAN_SOFT_TIMESTAMP(INV_MPU6050_SCAN_TIMESTAMP),
/*
* Note that temperature should only be via polled reading only,
* not the final scan elements output.
*/
{
.type = IIO_TEMP,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW)
| BIT(IIO_CHAN_INFO_OFFSET)
| BIT(IIO_CHAN_INFO_SCALE),
.scan_index = -1,
},
INV_MPU6050_TEMP_CHAN(INV_MPU6050_SCAN_TEMP),
INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_X, INV_MPU6050_SCAN_GYRO_X),
INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Y, INV_MPU6050_SCAN_GYRO_Y),
INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Z, INV_MPU6050_SCAN_GYRO_Z),
@ -878,22 +887,29 @@ static const struct iio_chan_spec inv_mpu_channels[] = {
INV_MPU6050_CHAN(IIO_ACCEL, IIO_MOD_Z, INV_MPU6050_SCAN_ACCL_Z),
};
#define INV_MPU6050_SCAN_MASK_3AXIS_ACCEL \
(BIT(INV_MPU6050_SCAN_ACCL_X) \
| BIT(INV_MPU6050_SCAN_ACCL_Y) \
| BIT(INV_MPU6050_SCAN_ACCL_Z))
#define INV_MPU6050_SCAN_MASK_3AXIS_GYRO \
(BIT(INV_MPU6050_SCAN_GYRO_X) \
| BIT(INV_MPU6050_SCAN_GYRO_Y) \
| BIT(INV_MPU6050_SCAN_GYRO_Z))
#define INV_MPU6050_SCAN_MASK_TEMP (BIT(INV_MPU6050_SCAN_TEMP))
static const unsigned long inv_mpu_scan_masks[] = {
/* 3-axis accel */
BIT(INV_MPU6050_SCAN_ACCL_X)
| BIT(INV_MPU6050_SCAN_ACCL_Y)
| BIT(INV_MPU6050_SCAN_ACCL_Z),
INV_MPU6050_SCAN_MASK_3AXIS_ACCEL,
INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_TEMP,
/* 3-axis gyro */
BIT(INV_MPU6050_SCAN_GYRO_X)
| BIT(INV_MPU6050_SCAN_GYRO_Y)
| BIT(INV_MPU6050_SCAN_GYRO_Z),
INV_MPU6050_SCAN_MASK_3AXIS_GYRO,
INV_MPU6050_SCAN_MASK_3AXIS_GYRO | INV_MPU6050_SCAN_MASK_TEMP,
/* 6-axis accel + gyro */
BIT(INV_MPU6050_SCAN_ACCL_X)
| BIT(INV_MPU6050_SCAN_ACCL_Y)
| BIT(INV_MPU6050_SCAN_ACCL_Z)
| BIT(INV_MPU6050_SCAN_GYRO_X)
| BIT(INV_MPU6050_SCAN_GYRO_Y)
| BIT(INV_MPU6050_SCAN_GYRO_Z),
INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_3AXIS_GYRO,
INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_3AXIS_GYRO
| INV_MPU6050_SCAN_MASK_TEMP,
0,
};
@ -917,17 +933,9 @@ static const unsigned long inv_mpu_scan_masks[] = {
static const struct iio_chan_spec inv_mpu9150_channels[] = {
IIO_CHAN_SOFT_TIMESTAMP(INV_MPU9X50_SCAN_TIMESTAMP),
/*
* Note that temperature should only be via polled reading only,
* not the final scan elements output.
*/
{
.type = IIO_TEMP,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW)
| BIT(IIO_CHAN_INFO_OFFSET)
| BIT(IIO_CHAN_INFO_SCALE),
.scan_index = -1,
},
INV_MPU6050_TEMP_CHAN(INV_MPU6050_SCAN_TEMP),
INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_X, INV_MPU6050_SCAN_GYRO_X),
INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Y, INV_MPU6050_SCAN_GYRO_Y),
INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Z, INV_MPU6050_SCAN_GYRO_Z),
@ -944,17 +952,9 @@ static const struct iio_chan_spec inv_mpu9150_channels[] = {
static const struct iio_chan_spec inv_mpu9250_channels[] = {
IIO_CHAN_SOFT_TIMESTAMP(INV_MPU9X50_SCAN_TIMESTAMP),
/*
* Note that temperature should only be via polled reading only,
* not the final scan elements output.
*/
{
.type = IIO_TEMP,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW)
| BIT(IIO_CHAN_INFO_OFFSET)
| BIT(IIO_CHAN_INFO_SCALE),
.scan_index = -1,
},
INV_MPU6050_TEMP_CHAN(INV_MPU6050_SCAN_TEMP),
INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_X, INV_MPU6050_SCAN_GYRO_X),
INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Y, INV_MPU6050_SCAN_GYRO_Y),
INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Z, INV_MPU6050_SCAN_GYRO_Z),
@ -969,98 +969,50 @@ static const struct iio_chan_spec inv_mpu9250_channels[] = {
INV_MPU9X50_MAGN_CHAN(IIO_MOD_Z, 16, INV_MPU9X50_SCAN_MAGN_Z),
};
#define INV_MPU9X50_SCAN_MASK_3AXIS_MAGN \
(BIT(INV_MPU9X50_SCAN_MAGN_X) \
| BIT(INV_MPU9X50_SCAN_MAGN_Y) \
| BIT(INV_MPU9X50_SCAN_MAGN_Z))
static const unsigned long inv_mpu9x50_scan_masks[] = {
/* 3-axis accel */
BIT(INV_MPU6050_SCAN_ACCL_X)
| BIT(INV_MPU6050_SCAN_ACCL_Y)
| BIT(INV_MPU6050_SCAN_ACCL_Z),
INV_MPU6050_SCAN_MASK_3AXIS_ACCEL,
INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_TEMP,
/* 3-axis gyro */
BIT(INV_MPU6050_SCAN_GYRO_X)
| BIT(INV_MPU6050_SCAN_GYRO_Y)
| BIT(INV_MPU6050_SCAN_GYRO_Z),
INV_MPU6050_SCAN_MASK_3AXIS_GYRO,
INV_MPU6050_SCAN_MASK_3AXIS_GYRO | INV_MPU6050_SCAN_MASK_TEMP,
/* 3-axis magn */
BIT(INV_MPU9X50_SCAN_MAGN_X)
| BIT(INV_MPU9X50_SCAN_MAGN_Y)
| BIT(INV_MPU9X50_SCAN_MAGN_Z),
INV_MPU9X50_SCAN_MASK_3AXIS_MAGN,
INV_MPU9X50_SCAN_MASK_3AXIS_MAGN | INV_MPU6050_SCAN_MASK_TEMP,
/* 6-axis accel + gyro */
BIT(INV_MPU6050_SCAN_ACCL_X)
| BIT(INV_MPU6050_SCAN_ACCL_Y)
| BIT(INV_MPU6050_SCAN_ACCL_Z)
| BIT(INV_MPU6050_SCAN_GYRO_X)
| BIT(INV_MPU6050_SCAN_GYRO_Y)
| BIT(INV_MPU6050_SCAN_GYRO_Z),
INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_3AXIS_GYRO,
INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_3AXIS_GYRO
| INV_MPU6050_SCAN_MASK_TEMP,
/* 6-axis accel + magn */
BIT(INV_MPU6050_SCAN_ACCL_X)
| BIT(INV_MPU6050_SCAN_ACCL_Y)
| BIT(INV_MPU6050_SCAN_ACCL_Z)
| BIT(INV_MPU9X50_SCAN_MAGN_X)
| BIT(INV_MPU9X50_SCAN_MAGN_Y)
| BIT(INV_MPU9X50_SCAN_MAGN_Z),
INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU9X50_SCAN_MASK_3AXIS_MAGN,
INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU9X50_SCAN_MASK_3AXIS_MAGN
| INV_MPU6050_SCAN_MASK_TEMP,
/* 6-axis gyro + magn */
BIT(INV_MPU6050_SCAN_GYRO_X)
| BIT(INV_MPU6050_SCAN_GYRO_Y)
| BIT(INV_MPU6050_SCAN_GYRO_Z)
| BIT(INV_MPU9X50_SCAN_MAGN_X)
| BIT(INV_MPU9X50_SCAN_MAGN_Y)
| BIT(INV_MPU9X50_SCAN_MAGN_Z),
INV_MPU6050_SCAN_MASK_3AXIS_GYRO | INV_MPU9X50_SCAN_MASK_3AXIS_MAGN,
INV_MPU6050_SCAN_MASK_3AXIS_GYRO | INV_MPU9X50_SCAN_MASK_3AXIS_MAGN
| INV_MPU6050_SCAN_MASK_TEMP,
/* 9-axis accel + gyro + magn */
BIT(INV_MPU6050_SCAN_ACCL_X)
| BIT(INV_MPU6050_SCAN_ACCL_Y)
| BIT(INV_MPU6050_SCAN_ACCL_Z)
| BIT(INV_MPU6050_SCAN_GYRO_X)
| BIT(INV_MPU6050_SCAN_GYRO_Y)
| BIT(INV_MPU6050_SCAN_GYRO_Z)
| BIT(INV_MPU9X50_SCAN_MAGN_X)
| BIT(INV_MPU9X50_SCAN_MAGN_Y)
| BIT(INV_MPU9X50_SCAN_MAGN_Z),
INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_3AXIS_GYRO
| INV_MPU9X50_SCAN_MASK_3AXIS_MAGN,
INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_3AXIS_GYRO
| INV_MPU9X50_SCAN_MASK_3AXIS_MAGN
| INV_MPU6050_SCAN_MASK_TEMP,
0,
};
static const struct iio_chan_spec inv_icm20602_channels[] = {
IIO_CHAN_SOFT_TIMESTAMP(INV_ICM20602_SCAN_TIMESTAMP),
{
.type = IIO_TEMP,
.info_mask_separate = BIT(IIO_CHAN_INFO_RAW)
| BIT(IIO_CHAN_INFO_OFFSET)
| BIT(IIO_CHAN_INFO_SCALE),
.scan_index = INV_ICM20602_SCAN_TEMP,
.scan_type = {
.sign = 's',
.realbits = 16,
.storagebits = 16,
.shift = 0,
.endianness = IIO_BE,
},
},
INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_X, INV_ICM20602_SCAN_GYRO_X),
INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Y, INV_ICM20602_SCAN_GYRO_Y),
INV_MPU6050_CHAN(IIO_ANGL_VEL, IIO_MOD_Z, INV_ICM20602_SCAN_GYRO_Z),
INV_MPU6050_CHAN(IIO_ACCEL, IIO_MOD_Y, INV_ICM20602_SCAN_ACCL_Y),
INV_MPU6050_CHAN(IIO_ACCEL, IIO_MOD_X, INV_ICM20602_SCAN_ACCL_X),
INV_MPU6050_CHAN(IIO_ACCEL, IIO_MOD_Z, INV_ICM20602_SCAN_ACCL_Z),
};
static const unsigned long inv_icm20602_scan_masks[] = {
/* 3-axis accel + temp (mandatory) */
BIT(INV_ICM20602_SCAN_ACCL_X)
| BIT(INV_ICM20602_SCAN_ACCL_Y)
| BIT(INV_ICM20602_SCAN_ACCL_Z)
| BIT(INV_ICM20602_SCAN_TEMP),
INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_TEMP,
/* 3-axis gyro + temp (mandatory) */
BIT(INV_ICM20602_SCAN_GYRO_X)
| BIT(INV_ICM20602_SCAN_GYRO_Y)
| BIT(INV_ICM20602_SCAN_GYRO_Z)
| BIT(INV_ICM20602_SCAN_TEMP),
INV_MPU6050_SCAN_MASK_3AXIS_GYRO | INV_MPU6050_SCAN_MASK_TEMP,
/* 6-axis accel + gyro + temp (mandatory) */
BIT(INV_ICM20602_SCAN_ACCL_X)
| BIT(INV_ICM20602_SCAN_ACCL_Y)
| BIT(INV_ICM20602_SCAN_ACCL_Z)
| BIT(INV_ICM20602_SCAN_GYRO_X)
| BIT(INV_ICM20602_SCAN_GYRO_Y)
| BIT(INV_ICM20602_SCAN_GYRO_Z)
| BIT(INV_ICM20602_SCAN_TEMP),
INV_MPU6050_SCAN_MASK_3AXIS_ACCEL | INV_MPU6050_SCAN_MASK_3AXIS_GYRO
| INV_MPU6050_SCAN_MASK_TEMP,
0,
};
@ -1363,8 +1315,8 @@ int inv_mpu_core_probe(struct regmap *regmap, int irq, const char *name,
indio_dev->available_scan_masks = inv_mpu9x50_scan_masks;
break;
case INV_ICM20602:
indio_dev->channels = inv_icm20602_channels;
indio_dev->num_channels = ARRAY_SIZE(inv_icm20602_channels);
indio_dev->channels = inv_mpu_channels;
indio_dev->num_channels = ARRAY_SIZE(inv_mpu_channels);
indio_dev->available_scan_masks = inv_icm20602_scan_masks;
break;
default:

22
drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
View file

@ -86,6 +86,7 @@ enum inv_devices {
* @accl_fs: accel full scale range.
* @accl_fifo_enable: enable accel data output
* @gyro_fifo_enable: enable gyro data output
* @temp_fifo_enable: enable temp data output
* @magn_fifo_enable: enable magn data output
* @divider: chip sample rate divider (sample rate divider - 1)
*/
@ -95,6 +96,7 @@ struct inv_mpu6050_chip_config {
unsigned int accl_fs:2;
unsigned int accl_fifo_enable:1;
unsigned int gyro_fifo_enable:1;
unsigned int temp_fifo_enable:1;
unsigned int magn_fifo_enable:1;
u8 divider;
u8 user_ctrl;
@ -184,6 +186,7 @@ struct inv_mpu6050_state {
#define INV_MPU6050_BIT_SLAVE_2 0x04
#define INV_MPU6050_BIT_ACCEL_OUT 0x08
#define INV_MPU6050_BITS_GYRO_OUT 0x70
#define INV_MPU6050_BIT_TEMP_OUT 0x80
#define INV_MPU6050_REG_I2C_MST_CTRL 0x24
#define INV_MPU6050_BITS_I2C_MST_CLK_400KHZ 0x0D
@ -268,8 +271,8 @@ struct inv_mpu6050_state {
/* MPU9X50 9-axis magnetometer */
#define INV_MPU9X50_BYTES_MAGN 7
/* ICM20602 FIFO samples include temperature readings */
#define INV_ICM20602_BYTES_PER_TEMP_SENSOR 2
/* FIFO temperature sample size */
#define INV_MPU6050_BYTES_PER_TEMP_SENSOR 2
/* mpu6500 registers */
#define INV_MPU6500_REG_ACCEL_CONFIG_2 0x1D
@ -298,7 +301,7 @@ struct inv_mpu6050_state {
#define INV_ICM20608_TEMP_OFFSET 8170
#define INV_ICM20608_TEMP_SCALE 3059976
/* 6 + 6 + 7 (for MPU9x50) = 19 round up to 24 and plus 8 */
/* 6 + 6 + 2 + 7 (for MPU9x50) = 21 round up to 24 and plus 8 */
#define INV_MPU6050_OUTPUT_DATA_SIZE 32
#define INV_MPU6050_REG_INT_PIN_CFG 0x37
@ -344,6 +347,7 @@ enum inv_mpu6050_scan {
INV_MPU6050_SCAN_ACCL_X,
INV_MPU6050_SCAN_ACCL_Y,
INV_MPU6050_SCAN_ACCL_Z,
INV_MPU6050_SCAN_TEMP,
INV_MPU6050_SCAN_GYRO_X,
INV_MPU6050_SCAN_GYRO_Y,
INV_MPU6050_SCAN_GYRO_Z,
@ -355,18 +359,6 @@ enum inv_mpu6050_scan {
INV_MPU9X50_SCAN_TIMESTAMP,
};
/* scan element definition for ICM20602, which includes temperature */
enum inv_icm20602_scan {
INV_ICM20602_SCAN_ACCL_X,
INV_ICM20602_SCAN_ACCL_Y,
INV_ICM20602_SCAN_ACCL_Z,
INV_ICM20602_SCAN_TEMP,
INV_ICM20602_SCAN_GYRO_X,
INV_ICM20602_SCAN_GYRO_Y,
INV_ICM20602_SCAN_GYRO_Z,
INV_ICM20602_SCAN_TIMESTAMP,
};
enum inv_mpu6050_filter_e {
INV_MPU6050_FILTER_256HZ_NOLPF2 = 0,
INV_MPU6050_FILTER_188HZ,

6
drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
View file

@ -142,6 +142,8 @@ int inv_reset_fifo(struct iio_dev *indio_dev)
d |= INV_MPU6050_BITS_GYRO_OUT;
if (st->chip_config.accl_fifo_enable)
d |= INV_MPU6050_BIT_ACCEL_OUT;
if (st->chip_config.temp_fifo_enable)
d |= INV_MPU6050_BIT_TEMP_OUT;
if (st->chip_config.magn_fifo_enable)
d |= INV_MPU6050_BIT_SLAVE_0;
result = regmap_write(st->map, st->reg->fifo_en, d);
@ -200,8 +202,8 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p)
if (st->chip_config.gyro_fifo_enable)
bytes_per_datum += INV_MPU6050_BYTES_PER_3AXIS_SENSOR;
if (st->chip_type == INV_ICM20602)
bytes_per_datum += INV_ICM20602_BYTES_PER_TEMP_SENSOR;
if (st->chip_config.temp_fifo_enable)
bytes_per_datum += INV_MPU6050_BYTES_PER_TEMP_SENSOR;
if (st->chip_config.magn_fifo_enable)
bytes_per_datum += INV_MPU9X50_BYTES_MAGN;

3
drivers/iio/imu/inv_mpu6050/inv_mpu_trigger.c
View file

@ -24,6 +24,9 @@ static void inv_scan_query_mpu6050(struct iio_dev *indio_dev)
indio_dev->active_scan_mask) ||
test_bit(INV_MPU6050_SCAN_ACCL_Z,
indio_dev->active_scan_mask);
st->chip_config.temp_fifo_enable =
test_bit(INV_MPU6050_SCAN_TEMP, indio_dev->active_scan_mask);
}
static void inv_scan_query_mpu9x50(struct iio_dev *indio_dev)