sensor: add upoload f/w API

Add Firmware upload API

Signed-off-by: Armando Visconti <[email protected]>

Author: avisconti

drivers/sensor/sensor_handlers.c

@@ -68,6 +68,15 @@ static inline int z_vrfy_sensor_get_decoder(const struct device *dev,
 }
 #include <zephyr/syscalls/sensor_get_decoder_mrsh.c>
 
+static inline int z_vrfy_sensor_upload_fw(const struct device *dev,
+					  const void *fw_buf, size_t fw_len)
+{
+	K_OOPS(K_SYSCALL_OBJ(dev, K_OBJ_DRIVER_SENSOR));
+	K_OOPS(K_SYSCALL_MEMORY_READ(fw_buf, fw_len));
+	return z_impl_sensor_upload_fw(dev, fw_buf, fw_len);
+}
+#include <zephyr/syscalls/sensor_upload_fw_mrsh.c>
+
 static inline int z_vrfy_sensor_reconfigure_read_iodev(struct rtio_iodev *iodev,
 						       const struct device *sensor,
 						       const struct sensor_chan_spec *channels,

include/zephyr/drivers/sensor.h

@@ -705,6 +705,9 @@ struct sensor_read_config {
 /* Used to submit an RTIO sqe to the sensor's iodev */
 typedef void (*sensor_submit_t)(const struct device *sensor, struct rtio_iodev_sqe *sqe);
 
+/* Used to provide a driver specific callback to upload a f/w in the sensor */
+typedef int (*sensor_upload_fw_t)(const struct device *dev, const void *fw_buf, size_t fw_len);
+
 /* The default decoder API */
 extern const struct sensor_decoder_api __sensor_default_decoder;
 
@@ -719,6 +722,7 @@ __subsystem struct sensor_driver_api {
 	sensor_channel_get_t channel_get;
 	sensor_get_decoder_t get_decoder;
 	sensor_submit_t submit;
+	sensor_upload_fw_t upload_fw;
 };
 
 /**
@@ -1004,6 +1008,32 @@ static inline int z_impl_sensor_get_decoder(const struct device *dev,
 	return api->get_decoder(dev, decoder);
 }
 
+/**
+ * @brief Upload a Firmware to the sensor
+ *
+ * @param[in] dev The sensor device
+ * @param[in] fw_buf Pointer to the Firmware buffer
+ * @param[in] fw_len Length of Firmware
+ * @return 0 on success
+ * @return < 0 on error
+ */
+__syscall int sensor_upload_fw(const struct device *dev,
+			       const void *fw_buf, size_t fw_len);
+
+static inline int z_impl_sensor_upload_fw(const struct device *dev,
+					  const void *fw_buf, size_t fw_len)
+{
+	const struct sensor_driver_api *api = (const struct sensor_driver_api *)dev->api;
+
+	__ASSERT_NO_MSG(api != NULL);
+
+	if (api->upload_fw == NULL) {
+		return -ENOSYS;
+	}
+
+	return api->upload_fw(dev, fw_buf, fw_len);
+}
+
 /**
  * @brief Reconfigure a reading iodev
  *