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| author | areviu <areviu.info@gmail.com> | 2017-11-14 20:06:06 +0000 |
|---|---|---|
| committer | areviu <areviu.info@gmail.com> | 2017-11-14 20:06:06 +0000 |
| commit | 060f9c5954480b82f7e82782e8abe5026d73a317 (patch) | |
| tree | b8aa3f4d6ce5b82fb8fafa8a3fa69642382a1f85 /os | |
| parent | 006e9f17a421ffd26741462b6217c8789c3811df (diff) | |
| download | ChibiOS-060f9c5954480b82f7e82782e8abe5026d73a317.tar.gz ChibiOS-060f9c5954480b82f7e82782e8abe5026d73a317.tar.bz2 ChibiOS-060f9c5954480b82f7e82782e8abe5026d73a317.zip | |
added SAMA TRNG driver
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@11003 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os')
| -rw-r--r-- | os/hal/ports/SAMA/LLD/TRNGv1/driver.mk | 5 | ||||
| -rw-r--r-- | os/hal/ports/SAMA/LLD/TRNGv1/sama_trng_lld.c | 53 | ||||
| -rw-r--r-- | os/hal/ports/SAMA/LLD/TRNGv1/sama_trng_lld.h | 36 |
3 files changed, 94 insertions, 0 deletions
diff --git a/os/hal/ports/SAMA/LLD/TRNGv1/driver.mk b/os/hal/ports/SAMA/LLD/TRNGv1/driver.mk new file mode 100644 index 000000000..92d59e051 --- /dev/null +++ b/os/hal/ports/SAMA/LLD/TRNGv1/driver.mk @@ -0,0 +1,5 @@ +PLATFORMSRC +=$(CHIBIOS)/os/hal/ports/SAMA/LLD/TRNGv1/sama_trng_lld.c
+
+
+
+PLATFORMINC +=$(CHIBIOS)/os/hal/ports/SAMA/LLD/TRNGv1
\ No newline at end of file diff --git a/os/hal/ports/SAMA/LLD/TRNGv1/sama_trng_lld.c b/os/hal/ports/SAMA/LLD/TRNGv1/sama_trng_lld.c new file mode 100644 index 000000000..2c416b6ad --- /dev/null +++ b/os/hal/ports/SAMA/LLD/TRNGv1/sama_trng_lld.c @@ -0,0 +1,53 @@ +/*
+ ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+#include "hal.h"
+#include "sama_trng_lld.h"
+
+
+void trng_lld_init(void) {
+ pmcEnableTRNG();
+}
+
+void trng_lld_start(void) {
+
+ TRNG->TRNG_CR = TRNG_CR_ENABLE | TRNG_CR_KEY_PASSWD;
+ //enable interrupt
+ // TRNG->TRNG_IER = TRNG_IER_DATRDY;
+
+
+}
+
+void trng_lld_getrandom(uint32_t * random) {
+
+ //generate a random every 84 clock cycles.
+ while (!(TRNG->TRNG_ISR & TRNG_ISR_DATRDY));
+
+ *random = TRNG->TRNG_ODATA;
+
+}
+
+void trng_lld_stop(void) {
+ //disable interrupt
+ //TRNG->TRNG_IDR = TRNG_IDR_DATRDY;
+ TRNG->TRNG_CR = TRNG_CR_KEY_PASSWD;
+ pmcDisableTRNG();
+}
+
+
+
+
+
+
diff --git a/os/hal/ports/SAMA/LLD/TRNGv1/sama_trng_lld.h b/os/hal/ports/SAMA/LLD/TRNGv1/sama_trng_lld.h new file mode 100644 index 000000000..83dd36174 --- /dev/null +++ b/os/hal/ports/SAMA/LLD/TRNGv1/sama_trng_lld.h @@ -0,0 +1,36 @@ +/*
+ ChibiOS - Copyright (C) 2006..2016 Giovanni Di Sirio
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+*/
+#ifndef HAL_LLD_SAMA_TRNG_H_
+#define HAL_LLD_SAMA_TRNG_H_
+
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+extern void trng_lld_init(void);
+extern void trng_lld_start(void);
+extern void trng_lld_stop(void);
+extern void trng_lld_getrandom(uint32_t * random);
+
+#ifdef __cplusplus
+}
+#endif
+
+
+
+#endif /* HAL_LLD_SAMA_TRNG_H_ */
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