From: Mircea Caprioru <mircea.caprioru@analog.com>
To: <jic23@kernel.org>
Cc: <Michael.Hennerich@analog.com>, <stefan.popa@analog.com>,
<lars@metafoo.de>, <gregkh@linuxfoundation.org>,
<linux-kernel@vger.kernel.org>, <linux-iio@vger.kernel.org>,
<devicetree@vger.kernel.org>, <robh+dt@kernel.org>,
Mircea Caprioru <mircea.caprioru@analog.com>
Subject: [PATCH V2 3/4] staging: iio: adc: ad7192: Add system calibration support
Date: Tue, 13 Aug 2019 10:55:43 +0300 [thread overview]
Message-ID: <20190813075544.9122-3-mircea.caprioru@analog.com> (raw)
In-Reply-To: <20190813075544.9122-1-mircea.caprioru@analog.com>
This patch will add a system calibration attribute for each channel. Using
this option the user will have the ability to calibrate each channel for
zero scale and full scale. It uses the iio_chan_spec_ext_info and IIO_ENUM
to implement the functionality.
Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
---
Changelog V2:
- no changes here
drivers/staging/iio/adc/ad7192.c | 55 +++++++++++++++++++++++++++++++-
1 file changed, 54 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index d58ce08f3693..731072830f30 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -155,6 +155,11 @@
* The DOUT/RDY output must also be wired to an interrupt capable GPIO.
*/
+enum {
+ AD7192_SYSCALIB_ZERO_SCALE,
+ AD7192_SYSCALIB_FULL_SCALE,
+};
+
struct ad7192_state {
struct regulator *avdd;
struct regulator *dvdd;
@@ -169,10 +174,56 @@ struct ad7192_state {
u8 devid;
u8 clock_sel;
struct mutex lock; /* protect sensor state */
+ u8 syscalib_mode[8];
struct ad_sigma_delta sd;
};
+static const char * const ad7192_syscalib_modes[] = {
+ [AD7192_SYSCALIB_ZERO_SCALE] = "zero_scale",
+ [AD7192_SYSCALIB_FULL_SCALE] = "full_scale",
+};
+
+static int ad7192_set_syscalib_mode(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ unsigned int mode)
+{
+ struct ad7192_state *st = iio_priv(indio_dev);
+ int ret;
+
+ st->syscalib_mode[chan->channel] = mode;
+
+ if (mode == AD7192_SYSCALIB_ZERO_SCALE)
+ ret = ad_sd_calibrate(&st->sd, AD7192_MODE_CAL_SYS_ZERO,
+ chan->address);
+ else
+ ret = ad_sd_calibrate(&st->sd, AD7192_MODE_CAL_SYS_FULL,
+ chan->address);
+
+ return ret;
+}
+
+static int ad7192_get_syscalib_mode(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan)
+{
+ struct ad7192_state *st = iio_priv(indio_dev);
+
+ return st->syscalib_mode[chan->channel];
+}
+
+static const struct iio_enum ad7192_syscalib_mode_enum = {
+ .items = ad7192_syscalib_modes,
+ .num_items = ARRAY_SIZE(ad7192_syscalib_modes),
+ .set = ad7192_set_syscalib_mode,
+ .get = ad7192_get_syscalib_mode
+};
+
+static const struct iio_chan_spec_ext_info ad7192_calibsys_ext_info[] = {
+ IIO_ENUM("system_calibration", IIO_SEPARATE, &ad7192_syscalib_mode_enum),
+ IIO_ENUM_AVAILABLE("system_calibration", &ad7192_syscalib_mode_enum),
+ {}
+};
+
static struct ad7192_state *ad_sigma_delta_to_ad7192(struct ad_sigma_delta *sd)
{
return container_of(sd, struct ad7192_state, sd);
@@ -769,9 +820,11 @@ static int ad7192_channels_config(struct iio_dev *indio_dev)
*chan = channels[i];
chan->info_mask_shared_by_all |=
BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY);
- if (chan->type != IIO_TEMP)
+ if (chan->type != IIO_TEMP) {
chan->info_mask_shared_by_type_available |=
BIT(IIO_CHAN_INFO_SCALE);
+ chan->ext_info = ad7192_calibsys_ext_info;
+ }
chan++;
}
--
2.17.1
WARNING: multiple messages have this Message-ID (diff)
From: Mircea Caprioru <mircea.caprioru@analog.com>
To: jic23@kernel.org
Cc: Michael.Hennerich@analog.com, stefan.popa@analog.com,
lars@metafoo.de, gregkh@linuxfoundation.org,
linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org,
devicetree@vger.kernel.org, robh+dt@kernel.org,
Mircea Caprioru <mircea.caprioru@analog.com>
Subject: [PATCH V2 3/4] staging: iio: adc: ad7192: Add system calibration support
Date: Tue, 13 Aug 2019 10:55:43 +0300 [thread overview]
Message-ID: <20190813075544.9122-3-mircea.caprioru@analog.com> (raw)
In-Reply-To: <20190813075544.9122-1-mircea.caprioru@analog.com>
This patch will add a system calibration attribute for each channel. Using
this option the user will have the ability to calibrate each channel for
zero scale and full scale. It uses the iio_chan_spec_ext_info and IIO_ENUM
to implement the functionality.
Signed-off-by: Mircea Caprioru <mircea.caprioru@analog.com>
---
Changelog V2:
- no changes here
drivers/staging/iio/adc/ad7192.c | 55 +++++++++++++++++++++++++++++++-
1 file changed, 54 insertions(+), 1 deletion(-)
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index d58ce08f3693..731072830f30 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -155,6 +155,11 @@
* The DOUT/RDY output must also be wired to an interrupt capable GPIO.
*/
+enum {
+ AD7192_SYSCALIB_ZERO_SCALE,
+ AD7192_SYSCALIB_FULL_SCALE,
+};
+
struct ad7192_state {
struct regulator *avdd;
struct regulator *dvdd;
@@ -169,10 +174,56 @@ struct ad7192_state {
u8 devid;
u8 clock_sel;
struct mutex lock; /* protect sensor state */
+ u8 syscalib_mode[8];
struct ad_sigma_delta sd;
};
+static const char * const ad7192_syscalib_modes[] = {
+ [AD7192_SYSCALIB_ZERO_SCALE] = "zero_scale",
+ [AD7192_SYSCALIB_FULL_SCALE] = "full_scale",
+};
+
+static int ad7192_set_syscalib_mode(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan,
+ unsigned int mode)
+{
+ struct ad7192_state *st = iio_priv(indio_dev);
+ int ret;
+
+ st->syscalib_mode[chan->channel] = mode;
+
+ if (mode == AD7192_SYSCALIB_ZERO_SCALE)
+ ret = ad_sd_calibrate(&st->sd, AD7192_MODE_CAL_SYS_ZERO,
+ chan->address);
+ else
+ ret = ad_sd_calibrate(&st->sd, AD7192_MODE_CAL_SYS_FULL,
+ chan->address);
+
+ return ret;
+}
+
+static int ad7192_get_syscalib_mode(struct iio_dev *indio_dev,
+ const struct iio_chan_spec *chan)
+{
+ struct ad7192_state *st = iio_priv(indio_dev);
+
+ return st->syscalib_mode[chan->channel];
+}
+
+static const struct iio_enum ad7192_syscalib_mode_enum = {
+ .items = ad7192_syscalib_modes,
+ .num_items = ARRAY_SIZE(ad7192_syscalib_modes),
+ .set = ad7192_set_syscalib_mode,
+ .get = ad7192_get_syscalib_mode
+};
+
+static const struct iio_chan_spec_ext_info ad7192_calibsys_ext_info[] = {
+ IIO_ENUM("system_calibration", IIO_SEPARATE, &ad7192_syscalib_mode_enum),
+ IIO_ENUM_AVAILABLE("system_calibration", &ad7192_syscalib_mode_enum),
+ {}
+};
+
static struct ad7192_state *ad_sigma_delta_to_ad7192(struct ad_sigma_delta *sd)
{
return container_of(sd, struct ad7192_state, sd);
@@ -769,9 +820,11 @@ static int ad7192_channels_config(struct iio_dev *indio_dev)
*chan = channels[i];
chan->info_mask_shared_by_all |=
BIT(IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY);
- if (chan->type != IIO_TEMP)
+ if (chan->type != IIO_TEMP) {
chan->info_mask_shared_by_type_available |=
BIT(IIO_CHAN_INFO_SCALE);
+ chan->ext_info = ad7192_calibsys_ext_info;
+ }
chan++;
}
--
2.17.1
next prev parent reply other threads:[~2019-08-13 7:56 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-13 7:55 [PATCH V2 1/4] staging: iio: adc: ad7192: Add low_pass_3db_filter_frequency Mircea Caprioru
2019-08-13 7:55 ` Mircea Caprioru
2019-08-13 7:55 ` [PATCH V2 2/4] iio: adc: ad_sigma_delta: Export ad_sd_calibrate Mircea Caprioru
2019-08-13 7:55 ` Mircea Caprioru
2019-08-13 7:55 ` Mircea Caprioru [this message]
2019-08-13 7:55 ` [PATCH V2 3/4] staging: iio: adc: ad7192: Add system calibration support Mircea Caprioru
2019-08-13 7:55 ` [PATCH V2 4/4] dt-bindings: iio: adc: ad7192: Add binding documentation for AD7192 Mircea Caprioru
2019-08-13 7:55 ` Mircea Caprioru
2019-08-13 21:34 ` Rob Herring
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