From: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
To: linux-iio@vger.kernel.org
Cc: Jean-Baptiste Maneyrol <jmaneyrol@invensense.com>
Subject: [PATCH v3 3/4] iio: imu: inv_mpu6050: clean read raw by factorizing out raw data
Date: Tue, 17 Apr 2018 10:07:21 +0200 [thread overview]
Message-ID: <1523952442-20104-3-git-send-email-jmaneyrol@invensense.com> (raw)
In-Reply-To: <1523952442-20104-1-git-send-email-jmaneyrol@invensense.com>
Factorize reading channel data in its own function.
---
drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 116 +++++++++++++++--------------
1 file changed, 62 insertions(+), 54 deletions(-)
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index 996e68e..a0cecd9 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -324,6 +324,67 @@ static int inv_mpu6050_sensor_show(struct inv_mpu6050_state *st, int reg,
return IIO_VAL_INT;
}
+static int inv_mpu6050_read_channel_data(struct iio_dev *indio_dev,
+ struct iio_chan_spec const *chan,
+ int *val)
+{
+ struct inv_mpu6050_state *st = iio_priv(indio_dev);
+ int result;
+ int ret = IIO_VAL_INT;
+
+ result = iio_device_claim_direct_mode(indio_dev);
+ if (result)
+ return result;
+ result = inv_mpu6050_set_power_itg(st, true);
+ if (result)
+ goto error_release;
+
+ switch (chan->type) {
+ case IIO_ANGL_VEL:
+ result = inv_mpu6050_switch_engine(st, true,
+ INV_MPU6050_BIT_PWR_GYRO_STBY);
+ if (result)
+ goto error_power_off;
+ ret = inv_mpu6050_sensor_show(st, st->reg->raw_gyro,
+ chan->channel2, val);
+ result = inv_mpu6050_switch_engine(st, false,
+ INV_MPU6050_BIT_PWR_GYRO_STBY);
+ if (result)
+ goto error_power_off;
+ break;
+ case IIO_ACCEL:
+ result = inv_mpu6050_switch_engine(st, true,
+ INV_MPU6050_BIT_PWR_ACCL_STBY);
+ if (result)
+ goto error_power_off;
+ ret = inv_mpu6050_sensor_show(st, st->reg->raw_accl,
+ chan->channel2, val);
+ result = inv_mpu6050_switch_engine(st, false,
+ INV_MPU6050_BIT_PWR_ACCL_STBY);
+ if (result)
+ goto error_power_off;
+ break;
+ case IIO_TEMP:
+ /* wait for stablization */
+ msleep(INV_MPU6050_SENSOR_UP_TIME);
+ ret = inv_mpu6050_sensor_show(st, st->reg->temperature,
+ IIO_MOD_X, val);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+error_power_off:
+ result |= inv_mpu6050_set_power_itg(st, false);
+error_release:
+ iio_device_release_direct_mode(indio_dev);
+ if (result)
+ return result;
+
+ return ret;
+}
+
static int
inv_mpu6050_read_raw(struct iio_dev *indio_dev,
struct iio_chan_spec const *chan,
@@ -334,63 +395,10 @@ inv_mpu6050_read_raw(struct iio_dev *indio_dev,
switch (mask) {
case IIO_CHAN_INFO_RAW:
- {
- int result;
-
- ret = IIO_VAL_INT;
mutex_lock(&st->lock);
- result = iio_device_claim_direct_mode(indio_dev);
- if (result)
- goto error_read_raw_unlock;
- result = inv_mpu6050_set_power_itg(st, true);
- if (result)
- goto error_read_raw_release;
- switch (chan->type) {
- case IIO_ANGL_VEL:
- result = inv_mpu6050_switch_engine(st, true,
- INV_MPU6050_BIT_PWR_GYRO_STBY);
- if (result)
- goto error_read_raw_power_off;
- ret = inv_mpu6050_sensor_show(st, st->reg->raw_gyro,
- chan->channel2, val);
- result = inv_mpu6050_switch_engine(st, false,
- INV_MPU6050_BIT_PWR_GYRO_STBY);
- if (result)
- goto error_read_raw_power_off;
- break;
- case IIO_ACCEL:
- result = inv_mpu6050_switch_engine(st, true,
- INV_MPU6050_BIT_PWR_ACCL_STBY);
- if (result)
- goto error_read_raw_power_off;
- ret = inv_mpu6050_sensor_show(st, st->reg->raw_accl,
- chan->channel2, val);
- result = inv_mpu6050_switch_engine(st, false,
- INV_MPU6050_BIT_PWR_ACCL_STBY);
- if (result)
- goto error_read_raw_power_off;
- break;
- case IIO_TEMP:
- /* wait for stablization */
- msleep(INV_MPU6050_SENSOR_UP_TIME);
- ret = inv_mpu6050_sensor_show(st, st->reg->temperature,
- IIO_MOD_X, val);
- break;
- default:
- ret = -EINVAL;
- break;
- }
-error_read_raw_power_off:
- result |= inv_mpu6050_set_power_itg(st, false);
-error_read_raw_release:
- iio_device_release_direct_mode(indio_dev);
-error_read_raw_unlock:
+ ret = inv_mpu6050_read_channel_data(indio_dev, chan, val);
mutex_unlock(&st->lock);
- if (result)
- return result;
-
return ret;
- }
case IIO_CHAN_INFO_SCALE:
switch (chan->type) {
case IIO_ANGL_VEL:
--
2.7.4
next prev parent reply other threads:[~2018-04-17 8:07 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-17 8:07 [PATCH v3 1/4] iio: imu: inv_mpu6050: fix error path not turning chip back off Jean-Baptiste Maneyrol
2018-04-17 8:07 ` [PATCH v3 2/4] iio: imu: inv_mpu6050: use devm_* at init and delete remove Jean-Baptiste Maneyrol
2018-04-21 15:08 ` Jonathan Cameron
2018-04-17 8:07 ` Jean-Baptiste Maneyrol [this message]
2018-04-21 15:10 ` [PATCH v3 3/4] iio: imu: inv_mpu6050: clean read raw by factorizing out raw data Jonathan Cameron
2018-04-17 8:07 ` [PATCH v3 4/4] iio: imu: inv_mpu6050: clean read channel data error path Jean-Baptiste Maneyrol
2018-04-21 15:11 ` Jonathan Cameron
2018-04-21 15:07 ` [PATCH v3 1/4] iio: imu: inv_mpu6050: fix error path not turning chip back off Jonathan Cameron
2018-04-23 10:29 ` Jean-Baptiste Maneyrol
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