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external/tile/tile_lib/drivers/tile_random_driver.h

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+/**
+ * NOTICE
+ * 
+ * Copyright 2020 Tile Inc.  All Rights Reserved.
+ * All code or other information included in the accompanying files ("Tile Source Material")
+ * is PROPRIETARY information of Tile Inc. ("Tile") and access and use of the Tile Source Material
+ * is subject to these terms. The Tile Source Material may only be used for demonstration purposes,
+ * and may not be otherwise distributed or made available to others, including for commercial purposes.
+ * Without limiting the foregoing , you understand and agree that no production use
+ * of the Tile Source Material is allowed without a Tile ID properly obtained under a separate
+ * agreement with Tile.
+ * You also understand and agree that Tile may terminate the limited rights granted under these terms
+ * at any time in its discretion.
+ * All Tile Source Material is provided AS-IS without warranty of any kind.
+ * Tile does not warrant that the Tile Source Material will be error-free or fit for your purposes.
+ * Tile will not be liable for any damages resulting from your use of or inability to use
+ * the Tile Source Material.
+ *
+ * Support: firmware_support@tile.com
+ */
+
+/** @file tile_random_driver.h
+ ** @brief Tile Random Bytes Generation. Provides TileLib an interface to generate random numbers.
+ */
+
+#ifndef TILE_RANDOM_DRIVER_H_
+#define TILE_RANDOM_DRIVER_H_
+
+#include <stdint.h>
+
+
+/**
+ * Tile random number driver
+ */
+struct tile_random_driver
+{
+  /**
+   * Generate random bytes.
+   *
+   * @param[out] dst    Buffer to write random bytes to.
+   * @param[in]  length Number of random bytes to generate.
+   *
+   * @return See @ref TILE_ERROR_CODES.
+   */
+  int (*random_bytes)(uint8_t *dst, uint8_t length);
+};
+
+
+/**
+ * Register the Tile random driver.
+ */
+int tile_random_register(struct tile_random_driver *driver);
+
+#endif