#include <linux/uaccess.h>
#include <linux/miscdevice.h>
#include <linux/rfkill.h>
+#include <linux/hwmon.h>
#include <linux/iio/iio.h>
#include <linux/toshiba.h>
#include <acpi/video.h>
struct miscdevice miscdev;
struct rfkill *wwan_rfk;
struct iio_dev *indio_dev;
+#if IS_ENABLED(CONFIG_HWMON)
+ struct device *hwmon_device;
+#endif
int force_fan;
int last_key_event;
return 0;
}
+/* HWMON support for fan */
+#if IS_ENABLED(CONFIG_HWMON)
+static umode_t toshiba_acpi_hwmon_is_visible(const void *drvdata,
+ enum hwmon_sensor_types type,
+ u32 attr, int channel)
+{
+ return 0444;
+}
+
+static int toshiba_acpi_hwmon_read(struct device *dev, enum hwmon_sensor_types type,
+ u32 attr, int channel, long *val)
+{
+ /*
+ * There is only a single channel and single attribute (for the
+ * fan) at this point.
+ * This can be replaced with more advanced logic in the future,
+ * should the need arise.
+ */
+ if (type == hwmon_fan && channel == 0 && attr == hwmon_fan_input) {
+ u32 value;
+ int ret;
+
+ ret = get_fan_rpm(toshiba_acpi, &value);
+ if (ret)
+ return ret;
+
+ *val = value;
+ return 0;
+ }
+ return -EOPNOTSUPP;
+}
+
+static const struct hwmon_channel_info *toshiba_acpi_hwmon_info[] = {
+ HWMON_CHANNEL_INFO(fan, HWMON_F_INPUT),
+ NULL
+};
+
+static const struct hwmon_ops toshiba_acpi_hwmon_ops = {
+ .is_visible = toshiba_acpi_hwmon_is_visible,
+ .read = toshiba_acpi_hwmon_read,
+};
+
+static const struct hwmon_chip_info toshiba_acpi_hwmon_chip_info = {
+ .ops = &toshiba_acpi_hwmon_ops,
+ .info = toshiba_acpi_hwmon_info,
+};
+#endif
+
static void print_supported_features(struct toshiba_acpi_dev *dev)
{
pr_info("Supported laptop features:");
remove_toshiba_proc_entries(dev);
+#if IS_ENABLED(CONFIG_HWMON)
+ if (dev->hwmon_device)
+ hwmon_device_unregister(dev->hwmon_device);
+#endif
+
if (dev->accelerometer_supported && dev->indio_dev) {
iio_device_unregister(dev->indio_dev);
iio_device_free(dev->indio_dev);
ret = get_fan_rpm(dev, &dummy);
dev->fan_rpm_supported = !ret;
+#if IS_ENABLED(CONFIG_HWMON)
+ if (dev->fan_rpm_supported) {
+ dev->hwmon_device = hwmon_device_register_with_info(
+ &dev->acpi_dev->dev, "toshiba_acpi_sensors", NULL,
+ &toshiba_acpi_hwmon_chip_info, NULL);
+ if (IS_ERR(dev->hwmon_device)) {
+ dev->hwmon_device = NULL;
+ pr_warn("unable to register hwmon device, skipping\n");
+ }
+ }
+#endif
+
toshiba_wwan_available(dev);
if (dev->wwan_supported)
toshiba_acpi_setup_wwan_rfkill(dev);