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Date: Thu, 6 Jul 2017 18:56:23 -0400
From: Brian Masney <masneyb@...tation.org>
To: jic23@...nel.org, linux-iio@...r.kernel.org
Cc: gregkh@...uxfoundation.org, devel@...verdev.osuosl.org,
knaack.h@....de, lars@...afoo.de, pmeerw@...erw.net,
linux-kernel@...r.kernel.org, Jon.Brenner@....com
Subject: [PATCH v2 6/9] staging: iio: tsl2x7x: refactor {read,write}_event_value to allow handling multiple iio_event_infos
tsl2x7x_read_thresh() and tsl2x7x_write_thresh() currently assumes
that IIO_EV_INFO_VALUE is the only iio_event_info that will be
passed in. This patch refactors these two functions so that
additional iio_event_infos can be passed in. The functions are
renamed from tsl2x7x_{read,write}_thresh() to
tsl2x7x_{read,write}_event_value(). This patch also adds the
missing return value check to tsl2x7x_invoke_change() since this
was previously missing. This patch is in preparation for moving
the in_intensity0_thresh_period and in_proximity0_thresh_period sysfs
attributes to be created by iio_event_spec.
Signed-off-by: Brian Masney <masneyb@...tation.org>
---
drivers/staging/iio/light/tsl2x7x.c | 157 +++++++++++++++++++++---------------
1 file changed, 90 insertions(+), 67 deletions(-)
diff --git a/drivers/staging/iio/light/tsl2x7x.c b/drivers/staging/iio/light/tsl2x7x.c
index 5734628..d80f5dc 100644
--- a/drivers/staging/iio/light/tsl2x7x.c
+++ b/drivers/staging/iio/light/tsl2x7x.c
@@ -1218,78 +1218,101 @@ static int tsl2x7x_write_interrupt_config(struct iio_dev *indio_dev,
return 0;
}
-static int tsl2x7x_write_thresh(struct iio_dev *indio_dev,
- const struct iio_chan_spec *chan,
- enum iio_event_type type,
- enum iio_event_direction dir,
- enum iio_event_info info,
- int val, int val2)
+static int tsl2x7x_write_event_value(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir,
+ enum iio_event_info info,
+ int val, int val2)
{
struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+ int ret = -EINVAL;
- if (chan->type == IIO_INTENSITY) {
- switch (dir) {
- case IIO_EV_DIR_RISING:
- chip->tsl2x7x_settings.als_thresh_high = val;
- break;
- case IIO_EV_DIR_FALLING:
- chip->tsl2x7x_settings.als_thresh_low = val;
- break;
- default:
- return -EINVAL;
- }
- } else {
- switch (dir) {
- case IIO_EV_DIR_RISING:
- chip->tsl2x7x_settings.prox_thres_high = val;
- break;
- case IIO_EV_DIR_FALLING:
- chip->tsl2x7x_settings.prox_thres_low = val;
- break;
- default:
- return -EINVAL;
+ switch (info) {
+ case IIO_EV_INFO_VALUE:
+ if (chan->type == IIO_INTENSITY) {
+ switch (dir) {
+ case IIO_EV_DIR_RISING:
+ chip->tsl2x7x_settings.als_thresh_high = val;
+ ret = 0;
+ break;
+ case IIO_EV_DIR_FALLING:
+ chip->tsl2x7x_settings.als_thresh_low = val;
+ ret = 0;
+ break;
+ default:
+ break;
+ }
+ } else {
+ switch (dir) {
+ case IIO_EV_DIR_RISING:
+ chip->tsl2x7x_settings.prox_thres_high = val;
+ ret = 0;
+ break;
+ case IIO_EV_DIR_FALLING:
+ chip->tsl2x7x_settings.prox_thres_low = val;
+ ret = 0;
+ break;
+ default:
+ break;
+ }
}
+ break;
+ default:
+ break;
}
- tsl2x7x_invoke_change(indio_dev);
+ if (ret < 0)
+ return ret;
- return 0;
+ return tsl2x7x_invoke_change(indio_dev);
}
-static int tsl2x7x_read_thresh(struct iio_dev *indio_dev,
- const struct iio_chan_spec *chan,
- enum iio_event_type type,
- enum iio_event_direction dir,
- enum iio_event_info info,
- int *val, int *val2)
+static int tsl2x7x_read_event_value(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ enum iio_event_type type,
+ enum iio_event_direction dir,
+ enum iio_event_info info,
+ int *val, int *val2)
{
struct tsl2X7X_chip *chip = iio_priv(indio_dev);
+ int ret = -EINVAL;
- if (chan->type == IIO_INTENSITY) {
- switch (dir) {
- case IIO_EV_DIR_RISING:
- *val = chip->tsl2x7x_settings.als_thresh_high;
- break;
- case IIO_EV_DIR_FALLING:
- *val = chip->tsl2x7x_settings.als_thresh_low;
- break;
- default:
- return -EINVAL;
- }
- } else {
- switch (dir) {
- case IIO_EV_DIR_RISING:
- *val = chip->tsl2x7x_settings.prox_thres_high;
- break;
- case IIO_EV_DIR_FALLING:
- *val = chip->tsl2x7x_settings.prox_thres_low;
- break;
- default:
- return -EINVAL;
+ switch (info) {
+ case IIO_EV_INFO_VALUE:
+ if (chan->type == IIO_INTENSITY) {
+ switch (dir) {
+ case IIO_EV_DIR_RISING:
+ *val = chip->tsl2x7x_settings.als_thresh_high;
+ ret = IIO_VAL_INT;
+ break;
+ case IIO_EV_DIR_FALLING:
+ *val = chip->tsl2x7x_settings.als_thresh_low;
+ ret = IIO_VAL_INT;
+ break;
+ default:
+ break;
+ }
+ } else {
+ switch (dir) {
+ case IIO_EV_DIR_RISING:
+ *val = chip->tsl2x7x_settings.prox_thres_high;
+ ret = IIO_VAL_INT;
+ break;
+ case IIO_EV_DIR_FALLING:
+ *val = chip->tsl2x7x_settings.prox_thres_low;
+ ret = IIO_VAL_INT;
+ break;
+ default:
+ break;
+ }
}
+ break;
+ default:
+ break;
}
- return IIO_VAL_INT;
+ return ret;
}
static int tsl2x7x_read_raw(struct iio_dev *indio_dev,
@@ -1614,8 +1637,8 @@ static const struct iio_info tsl2X7X_device_info[] = {
.driver_module = THIS_MODULE,
.read_raw = &tsl2x7x_read_raw,
.write_raw = &tsl2x7x_write_raw,
- .read_event_value = &tsl2x7x_read_thresh,
- .write_event_value = &tsl2x7x_write_thresh,
+ .read_event_value = &tsl2x7x_read_event_value,
+ .write_event_value = &tsl2x7x_write_event_value,
.read_event_config = &tsl2x7x_read_interrupt_config,
.write_event_config = &tsl2x7x_write_interrupt_config,
},
@@ -1625,8 +1648,8 @@ static const struct iio_info tsl2X7X_device_info[] = {
.driver_module = THIS_MODULE,
.read_raw = &tsl2x7x_read_raw,
.write_raw = &tsl2x7x_write_raw,
- .read_event_value = &tsl2x7x_read_thresh,
- .write_event_value = &tsl2x7x_write_thresh,
+ .read_event_value = &tsl2x7x_read_event_value,
+ .write_event_value = &tsl2x7x_write_event_value,
.read_event_config = &tsl2x7x_read_interrupt_config,
.write_event_config = &tsl2x7x_write_interrupt_config,
},
@@ -1636,8 +1659,8 @@ static const struct iio_info tsl2X7X_device_info[] = {
.driver_module = THIS_MODULE,
.read_raw = &tsl2x7x_read_raw,
.write_raw = &tsl2x7x_write_raw,
- .read_event_value = &tsl2x7x_read_thresh,
- .write_event_value = &tsl2x7x_write_thresh,
+ .read_event_value = &tsl2x7x_read_event_value,
+ .write_event_value = &tsl2x7x_write_event_value,
.read_event_config = &tsl2x7x_read_interrupt_config,
.write_event_config = &tsl2x7x_write_interrupt_config,
},
@@ -1647,8 +1670,8 @@ static const struct iio_info tsl2X7X_device_info[] = {
.driver_module = THIS_MODULE,
.read_raw = &tsl2x7x_read_raw,
.write_raw = &tsl2x7x_write_raw,
- .read_event_value = &tsl2x7x_read_thresh,
- .write_event_value = &tsl2x7x_write_thresh,
+ .read_event_value = &tsl2x7x_read_event_value,
+ .write_event_value = &tsl2x7x_write_event_value,
.read_event_config = &tsl2x7x_read_interrupt_config,
.write_event_config = &tsl2x7x_write_interrupt_config,
},
@@ -1658,8 +1681,8 @@ static const struct iio_info tsl2X7X_device_info[] = {
.driver_module = THIS_MODULE,
.read_raw = &tsl2x7x_read_raw,
.write_raw = &tsl2x7x_write_raw,
- .read_event_value = &tsl2x7x_read_thresh,
- .write_event_value = &tsl2x7x_write_thresh,
+ .read_event_value = &tsl2x7x_read_event_value,
+ .write_event_value = &tsl2x7x_write_event_value,
.read_event_config = &tsl2x7x_read_interrupt_config,
.write_event_config = &tsl2x7x_write_interrupt_config,
},
--
2.9.4
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