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path: root/drivers/iio/industrialio-core.c
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Diffstat (limited to 'drivers/iio/industrialio-core.c')
-rw-r--r--drivers/iio/industrialio-core.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c
index 4f947e4377ef..2ec266ef41a3 100644
--- a/drivers/iio/industrialio-core.c
+++ b/drivers/iio/industrialio-core.c
@@ -64,14 +64,21 @@ static const char * const iio_chan_type_name_spec[] = {
[IIO_TIMESTAMP] = "timestamp",
[IIO_CAPACITANCE] = "capacitance",
[IIO_ALTVOLTAGE] = "altvoltage",
+ [IIO_CCT] = "cct",
};
static const char * const iio_modifier_names[] = {
[IIO_MOD_X] = "x",
[IIO_MOD_Y] = "y",
[IIO_MOD_Z] = "z",
+ [IIO_MOD_ROOT_SUM_SQUARED_X_Y] = "sqrt(x^2+y^2)",
+ [IIO_MOD_SUM_SQUARED_X_Y_Z] = "x^2+y^2+z^2",
[IIO_MOD_LIGHT_BOTH] = "both",
[IIO_MOD_LIGHT_IR] = "ir",
+ [IIO_MOD_LIGHT_CLEAR] = "clear",
+ [IIO_MOD_LIGHT_RED] = "red",
+ [IIO_MOD_LIGHT_GREEN] = "green",
+ [IIO_MOD_LIGHT_BLUE] = "blue",
};
/* relies on pairs of these shared then separate */
@@ -289,6 +296,69 @@ static ssize_t iio_write_channel_ext_info(struct device *dev,
this_attr->c, buf, len);
}
+ssize_t iio_enum_available_read(struct iio_dev *indio_dev,
+ uintptr_t priv, const struct iio_chan_spec *chan, char *buf)
+{
+ const struct iio_enum *e = (const struct iio_enum *)priv;
+ unsigned int i;
+ size_t len = 0;
+
+ if (!e->num_items)
+ return 0;
+
+ for (i = 0; i < e->num_items; ++i)
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%s ", e->items[i]);
+
+ /* replace last space with a newline */
+ buf[len - 1] = '\n';
+
+ return len;
+}
+EXPORT_SYMBOL_GPL(iio_enum_available_read);
+
+ssize_t iio_enum_read(struct iio_dev *indio_dev,
+ uintptr_t priv, const struct iio_chan_spec *chan, char *buf)
+{
+ const struct iio_enum *e = (const struct iio_enum *)priv;
+ int i;
+
+ if (!e->get)
+ return -EINVAL;
+
+ i = e->get(indio_dev, chan);
+ if (i < 0)
+ return i;
+ else if (i >= e->num_items)
+ return -EINVAL;
+
+ return sprintf(buf, "%s\n", e->items[i]);
+}
+EXPORT_SYMBOL_GPL(iio_enum_read);
+
+ssize_t iio_enum_write(struct iio_dev *indio_dev,
+ uintptr_t priv, const struct iio_chan_spec *chan, const char *buf,
+ size_t len)
+{
+ const struct iio_enum *e = (const struct iio_enum *)priv;
+ unsigned int i;
+ int ret;
+
+ if (!e->set)
+ return -EINVAL;
+
+ for (i = 0; i < e->num_items; i++) {
+ if (sysfs_streq(buf, e->items[i]))
+ break;
+ }
+
+ if (i == e->num_items)
+ return -EINVAL;
+
+ ret = e->set(indio_dev, chan, i);
+ return ret ? ret : len;
+}
+EXPORT_SYMBOL_GPL(iio_enum_write);
+
static ssize_t iio_read_channel_info(struct device *dev,
struct device_attribute *attr,
char *buf)