trng: Rename rand to trng_rand

The declaration for rand conflicts with the standard library declaration
so rename it from "rand" to "trng_rand". This has the benefit of making
it obvious when we're using the true random number generator.

For consistency, this also renames init_trng/exit_trng to
trng_init/trng_exit.

BRANCH=none
BUG=b:234181908
TEST=./util/compare_build.sh -b all -j 120
     => MATCH

Signed-off-by: Tom Hughes <tomhughes@chromium.org>
Change-Id: Ic3305a91263c45786c051eaa5b3689e7464aa0ab
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/3712032
Reviewed-by: Bobby Casey <bobbycasey@google.com>
Reviewed-by: Jack Rosenthal <jrosenth@chromium.org>

1 files changed, 5 insertions, 7 deletions

diff --git a/include/trng.h b/include/trng.h
index cea4555b41..969366ae8e 100644
--- a/include/trng.h
+++ b/include/trng.h
@@ -14,32 +14,30 @@
  *
  * Not supported by all platforms.
  **/
-void init_trng(void);
+void trng_init(void);
 
 /**
  * Shutdown the true random number generator.
  *
- * The opposite operation of init_trng(), disable the hardware resources
+ * The opposite operation of trng_init(), disable the hardware resources
  * used by the TRNG to save power.
  *
  * Not supported by all platforms.
  **/
-void exit_trng(void);
+void trng_exit(void);
 
 /**
  * Retrieve a 32 bit random value.
  *
  * Not supported on all platforms.
  **/
-#ifndef HIDE_EC_STDLIB
-uint32_t rand(void);
-#endif
+uint32_t trng_rand(void);
 
 /**
  * Output len random bytes into buffer.
  *
  * Not supported on all platforms.
  **/
-void rand_bytes(void *buffer, size_t len);
+void trng_rand_bytes(void *buffer, size_t len);
 
 #endif /* __EC_INCLUDE_TRNG_H */