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[v1,11/13] iio: chemical: bme680: Add SCALE and RAW channels

Message ID 20241010210030.33309-12-vassilisamir@gmail.com (mailing list archive)
State Changes Requested
Headers show
Series : chemical: bme680: 2nd set of clean and add | expand

Commit Message

Vasileios Amoiridis Oct. 10, 2024, 9 p.m. UTC 
From: Vasileios Amoiridis <vassilisamir@gmail.com>

Add SCALE,RAW channels to the device. Even though PROCESSED should be
kept for backwards compatibility add comment to avoid using it if the
value is not actually reported in IIO values.

Signed-off-by: Vasileios Amoiridis <vassilisamir@gmail.com>
---
 drivers/iio/chemical/bme680_core.c | 51 ++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
diff mbox series

Patch

diff --git a/drivers/iio/chemical/bme680_core.c b/drivers/iio/chemical/bme680_core.c
index 4669338ec2e5..7d6f4d8c5fe4 100644
--- a/drivers/iio/chemical/bme680_core.c
+++ b/drivers/iio/chemical/bme680_core.c
@@ -155,17 +155,26 @@  EXPORT_SYMBOL_NS(bme680_regmap_config, IIO_BME680);
 static const struct iio_chan_spec bme680_channels[] = {
 	{
 		.type = IIO_TEMP,
+		/* PROCESSED maintained for ABI backwards compatibility */
 		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
+				      BIT(IIO_CHAN_INFO_RAW) |
+				      BIT(IIO_CHAN_INFO_SCALE) |
 				      BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO),
 	},
 	{
 		.type = IIO_PRESSURE,
+		/* PROCESSED maintained for ABI backwards compatibility */
 		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
+				      BIT(IIO_CHAN_INFO_RAW) |
+				      BIT(IIO_CHAN_INFO_SCALE) |
 				      BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO),
 	},
 	{
 		.type = IIO_HUMIDITYRELATIVE,
+		/* PROCESSED maintained for ABI backwards compatibility */
 		.info_mask_separate = BIT(IIO_CHAN_INFO_PROCESSED) |
+				      BIT(IIO_CHAN_INFO_RAW) |
+				      BIT(IIO_CHAN_INFO_SCALE) |
 				      BIT(IIO_CHAN_INFO_OVERSAMPLING_RATIO),
 	},
 	{
@@ -802,6 +811,48 @@  static int __bme680_read_raw(struct iio_dev *indio_dev,
 		default:
 			return -EINVAL;
 		}
+	case IIO_CHAN_INFO_RAW:
+		switch (chan->type) {
+		case IIO_TEMP:
+			ret = bme680_read_temp(data, (s16 *)&chan_val);
+			if (ret)
+				return ret;
+
+			*val = chan_val;
+			return IIO_VAL_INT;
+		case IIO_PRESSURE:
+			ret = bme680_read_press(data, &chan_val);
+			if (ret)
+				return ret;
+
+			*val = chan_val;
+			return IIO_VAL_INT;
+		case IIO_HUMIDITYRELATIVE:
+			ret = bme680_read_humid(data, &chan_val);
+			if (ret)
+				return ret;
+
+			*val = chan_val;
+			return IIO_VAL_INT;
+		default:
+			return -EINVAL;
+		}
+	case IIO_CHAN_INFO_SCALE:
+		switch (chan->type) {
+		case IIO_TEMP:
+			*val = 10;
+			return IIO_VAL_INT;
+		case IIO_PRESSURE:
+			*val = 1;
+			*val2 = 1000;
+			return IIO_VAL_FRACTIONAL;
+		case IIO_HUMIDITYRELATIVE:
+			*val = 1;
+			*val2 = 1000;
+			return IIO_VAL_FRACTIONAL;
+		default:
+			return -EINVAL;
+		}
 	case IIO_CHAN_INFO_OVERSAMPLING_RATIO:
 		switch (chan->type) {
 		case IIO_TEMP: