fixup! drivers/at86rf2xx: add support for ATmegaRF MCUs

RIOT-OS · Oct 22, 2019 · 35dfad6 · 35dfad6
1 parent 8892ff9
commit 35dfad6
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Showing 3 changed files with 19 additions and 2 deletions.
diff --git a/drivers/at86rf2xx/at86rf2xx_internal.c b/drivers/at86rf2xx/at86rf2xx_internal.c
@@ -220,7 +220,7 @@ void at86rf2xx_configure_phy(at86rf2xx_t *dev)
     at86rf2xx_set_state(dev, prev_state);
 }
 
-#if defined(MODULE_AT86RF233) || defined(MODULE_AT86RF231) || defined(MODULE_AT86RFA1) || defined(MODULE_AT86RFR2)
+#if AT86RF2XX_RANDOM_NUMBER_GENERATOR
 void at86rf2xx_get_random(const at86rf2xx_t *dev, uint8_t *data, size_t len)
 {
     for (size_t byteCount = 0; byteCount < len; ++byteCount) {

diff --git a/drivers/at86rf2xx/include/at86rf2xx_internal.h b/drivers/at86rf2xx/include/at86rf2xx_internal.h
@@ -225,7 +225,7 @@ void at86rf2xx_hardware_reset(at86rf2xx_t *dev);
  */
 void at86rf2xx_configure_phy(at86rf2xx_t *dev);
 
-#if defined(MODULE_AT86RF233) || defined(MODULE_AT86RF231) || defined(MODULE_AT86RFR2) || defined(DOXYGEN)
+#if AT86RF2XX_RANDOM_NUMBER_GENERATOR || defined(DOXYGEN)
 /**
  * @brief   Read random data from the RNG
  *

diff --git a/drivers/include/at86rf2xx.h b/drivers/include/at86rf2xx.h
@@ -133,6 +133,23 @@ extern "C" {
 #define AT86RF2XX_HAVE_RETRIES             (0)
 #endif
 
+/**
+ * @brief   Random Number Generator
+ *
+ * Most AT86RF radios have the option to use the highest bits of the RSSI
+ * register as a source of randomness.
+ * See Section 11.2 of the at86rf233 reference manual. (RND_VALUE)
+ */
+#if defined(MODULE_AT86RF233) || defined(MODULE_AT86RF231) || defined(MODULE_AT86RFA1) || defined(MODULE_AT86RFR2)
+#ifndef AT86RF2XX_RANDOM_NUMBER_GENERATOR
+#define AT86RF2XX_RANDOM_NUMBER_GENERATOR  (1)
+#endif
+#else
+#ifndef AT86RF2XX_RANDOM_NUMBER_GENERATOR
+#define AT86RF2XX_RANDOM_NUMBER_GENERATOR  (0)
+#endif
+#endif
+
 /**
  * @brief   Smart idle listening feature
  *