| # Smartbond TRNG configuration |
| |
| # Copyright (c) 2023 Renesas Electronics Corporation |
| # SPDX-License-Identifier: Apache-2.0 |
| |
| |
| config ENTROPY_SMARTBOND_TRNG |
| bool "Renesas Smartbond MCU Family True Random Number Generator (TRNG) Driver" |
| default y |
| depends on DT_HAS_RENESAS_SMARTBOND_TRNG_ENABLED |
| select ENTROPY_HAS_DRIVER |
| help |
| Enable True Random Number Generator (TRNG) driver for Renesas Smartbond MCUs. |
| |
| if ENTROPY_SMARTBOND_TRNG |
| |
| config ENTROPY_SMARTBOND_THR_POOL_SIZE |
| int "Thread-mode random number pool size" |
| range ENTROPY_SMARTBOND_THR_THRESHOLD 256 |
| default 8 |
| help |
| Buffer length in bytes used to store entropy bytes generated by the |
| hardware to make them ready for thread mode consumers. |
| Please note, that size of the pool must be a power of 2. |
| |
| config ENTROPY_SMARTBOND_THR_THRESHOLD |
| int "Thread-mode random number pool low-water threshold" |
| range 4 255 |
| help |
| Low water-mark threshold in bytes to trigger entropy generation for |
| thread mode consumers. As soon as the number of available bytes in the |
| buffer goes below this number hardware entropy generation will be |
| started. |
| |
| config ENTROPY_SMARTBOND_ISR_POOL_SIZE |
| int "ISR-mode random number pool size" |
| range ENTROPY_SMARTBOND_ISR_THRESHOLD 256 |
| default 16 |
| help |
| Buffer length in bytes used to store entropy bytes generated by the |
| hardware to make them ready for ISR consumers. |
| Please note, that size of the pool must be a power of 2. |
| |
| config ENTROPY_SMARTBOND_ISR_THRESHOLD |
| int "ISR-mode random number pool low-water threshold" |
| range 12 255 |
| help |
| Low water-mark threshold in bytes to trigger entropy generation for |
| ISR consumers. As soon as the number of available bytes in the |
| buffer goes below this number hardware entropy generation will be |
| started. |
| |
| endif # ENTROPY_SMARTBOND_TRNG |
