1 files changed, 122 insertions, 0 deletions
diff --git a/watch-library/hardware/hal/src/hal_rand_sync.c b/watch-library/hardware/hal/src/hal_rand_sync.c
new file mode 100755
index 00000000..8b29ed1b
--- /dev/null
+++ b/watch-library/hardware/hal/src/hal_rand_sync.c
@@ -0,0 +1,122 @@
+/**
+ * \file
+ *
+ * \brief Generic Random Number Generator (RNG) functionality declaration.
+ *
+ * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries.
+ *
+ * \asf_license_start
+ *
+ * \page License
+ *
+ * Subject to your compliance with these terms, you may use Microchip
+ * software and any derivatives exclusively with Microchip products.
+ * It is your responsibility to comply with third party license terms applicable
+ * to your use of third party software (including open source software) that
+ * may accompany Microchip software.
+ *
+ * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES,
+ * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE,
+ * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY,
+ * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE
+ * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL
+ * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE
+ * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE
+ * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE.  TO THE FULLEST EXTENT
+ * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY
+ * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
+ * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE.
+ *
+ * \asf_license_stop
+ *
+ */
+
+#include <utils.h>
+#include "hal_rand_sync.h"
+
+#define HAL_RNG_SYNC_VERSION 0x00000001u
+
+int32_t rand_sync_init(struct rand_sync_desc *const desc, void *const hw)
+{
+	ASSERT(desc);
+
+	return _rand_sync_init(&desc->dev, hw);
+}
+
+void rand_sync_deinit(struct rand_sync_desc *const desc)
+{
+	ASSERT(desc);
+	_rand_sync_deinit(&desc->dev);
+}
+
+int32_t rand_sync_enable(struct rand_sync_desc *const desc)
+{
+	ASSERT(desc);
+	return _rand_sync_enable(&desc->dev);
+}
+
+void rand_sync_disable(struct rand_sync_desc *const desc)
+{
+	ASSERT(desc);
+	_rand_sync_disable(&desc->dev);
+}
+
+int32_t rand_sync_set_seed(struct rand_sync_desc *const desc, const uint32_t seed)
+{
+	ASSERT(desc);
+	return _rand_sync_set_seed(&desc->dev, seed);
+}
+
+/**
+ * \brief Read data bits
+ */
+static uint32_t _rand_sync_read_data(const struct _rand_sync_dev *dev, const uint8_t n_bits)
+{
+	uint8_t r_bits = (dev->n_bits < 1) ? 32 : dev->n_bits;
+	if (r_bits < n_bits) {
+		uint8_t  i;
+		uint32_t d = 0;
+		/* Join read bits */
+		for (i = 0; i < n_bits; i += r_bits) {
+			d |= (uint32_t)(_rand_sync_read_one(dev) << i);
+		}
+		return d;
+	} else {
+		return _rand_sync_read_one(dev);
+	}
+}
+
+uint8_t rand_sync_read8(const struct rand_sync_desc *const desc)
+{
+	ASSERT(desc);
+	return (uint8_t)_rand_sync_read_data(&desc->dev, 8);
+}
+
+uint32_t rand_sync_read32(const struct rand_sync_desc *const desc)
+{
+	ASSERT(desc);
+	return (uint32_t)_rand_sync_read_data(&desc->dev, 32);
+}
+
+void rand_sync_read_buf8(const struct rand_sync_desc *const desc, uint8_t *buf, uint32_t len)
+{
+	uint32_t i;
+	ASSERT(desc && (buf && len));
+	for (i = 0; i < len; i++) {
+		buf[i] = (uint8_t)_rand_sync_read_data(&desc->dev, 8);
+	}
+}
+
+void rand_sync_read_buf32(const struct rand_sync_desc *const desc, uint32_t *buf, uint32_t len)
+{
+	uint32_t i;
+	ASSERT(desc && (buf && len));
+	for (i = 0; i < len; i++) {
+		buf[i] = (uint32_t)_rand_sync_read_data(&desc->dev, 32);
+	}
+}
+
+uint32_t rand_sync_get_version(void)
+{
+	return HAL_RNG_SYNC_VERSION;
+}