From 9fce1f717ee8d87d160efefd9380999dfd97a9fb Mon Sep 17 00:00:00 2001
From: Matthias Ringwald <matthias@ringwald.ch>
Date: Mon, 30 Sep 2024 13:57:03 +0200
Subject: [PATCH] btstack_util: add read/write single bytes to
 little_endian/big_endian functions

for symmetry reasons
---
 src/btstack_util.c | 17 +++++++++++++++++
 src/btstack_util.h | 13 +++++++++----
 2 files changed, 26 insertions(+), 4 deletions(-)

diff --git a/src/btstack_util.c b/src/btstack_util.c
index c7f17316a..7cd2bc913 100644
--- a/src/btstack_util.c
+++ b/src/btstack_util.c
@@ -74,6 +74,9 @@ void bd_addr_copy(bd_addr_t dest, const bd_addr_t src){
     (void)memcpy(dest, src, BD_ADDR_LEN);
 }
 
+uint8_t little_endian_read_08(const uint8_t* buffer, int position) {
+    return (uint8_t)buffer[position];
+}
 uint16_t little_endian_read_16(const uint8_t * buffer, int position){
     return (uint16_t)(((uint16_t) buffer[position]) | (((uint16_t)buffer[position+1]) << 8));
 }
@@ -84,6 +87,11 @@ uint32_t little_endian_read_32(const uint8_t * buffer, int position){
     return ((uint32_t) buffer[position]) | (((uint32_t)buffer[position+1]) << 8) | (((uint32_t)buffer[position+2]) << 16) | (((uint32_t) buffer[position+3]) << 24);
 }
 
+void little_endian_store_08(uint8_t* buffer, uint16_t position, uint8_t value) {
+    uint16_t pos = position;
+    buffer[pos] = value;
+}
+
 void little_endian_store_16(uint8_t * buffer, uint16_t position, uint16_t value){
     uint16_t pos = position;
     buffer[pos++] = (uint8_t)value;
@@ -105,6 +113,10 @@ void little_endian_store_32(uint8_t * buffer, uint16_t position, uint32_t value)
     buffer[pos++] = (uint8_t)(value >> 24);
 }
 
+uint32_t big_endian_read_08(const uint8_t* buffer, int position) {
+    return buffer[position];
+}
+
 uint32_t big_endian_read_16(const uint8_t * buffer, int position) {
     return (uint16_t)(((uint16_t) buffer[position+1]) | (((uint16_t)buffer[position]) << 8));
 }
@@ -117,6 +129,11 @@ uint32_t big_endian_read_32(const uint8_t * buffer, int position) {
     return ((uint32_t) buffer[position+3]) | (((uint32_t)buffer[position+2]) << 8) | (((uint32_t)buffer[position+1]) << 16) | (((uint32_t) buffer[position]) << 24);
 }
 
+void big_endian_store_08(uint8_t* buffer, uint16_t position, uint8_t value) {
+    uint16_t pos = position;
+    buffer[pos++] = (uint8_t)(value);
+}
+
 void big_endian_store_16(uint8_t * buffer, uint16_t position, uint16_t value){
     uint16_t pos = position;
     buffer[pos++] = (uint8_t)(value >> 8);
diff --git a/src/btstack_util.h b/src/btstack_util.h
index f6d154f62..caeeb29ff 100644
--- a/src/btstack_util.h
+++ b/src/btstack_util.h
@@ -105,41 +105,46 @@ int32_t btstack_time_delta(uint32_t time_a, uint32_t time_b);
 int16_t btstack_time16_delta(uint16_t time_a, uint16_t time_b);
 
 /** 
- * @brief Read 16/24/32 bit little endian value from buffer
+ * @brief Read 08/16/24/32 bit little endian value from buffer
  * @param buffer
  * @param position in buffer
  * @return value
  */
+uint8_t  little_endian_read_08(const uint8_t * buffer, int position);
 uint16_t little_endian_read_16(const uint8_t * buffer, int position);
 uint32_t little_endian_read_24(const uint8_t * buffer, int position);
 uint32_t little_endian_read_32(const uint8_t * buffer, int position);
 
+
 /** 
- * @brief Write 16/32 bit little endian value into buffer
+ * @brief Write 08/16/32 bit little endian value into buffer
  * @param buffer
  * @param position in buffer
  * @param value
  */
+void little_endian_store_08(uint8_t * buffer, uint16_t position, uint8_t value);
 void little_endian_store_16(uint8_t * buffer, uint16_t position, uint16_t value);
 void little_endian_store_24(uint8_t * buffer, uint16_t position, uint32_t value);
 void little_endian_store_32(uint8_t * buffer, uint16_t position, uint32_t value);
 
 /** 
- * @brief Read 16/24/32 bit big endian value from buffer
+ * @brief Read 08/16/24/32 bit big endian value from buffer
  * @param buffer
  * @param position in buffer
  * @return value
  */
+uint32_t big_endian_read_08(const uint8_t* buffer, int position);
 uint32_t big_endian_read_16(const uint8_t * buffer, int position);
 uint32_t big_endian_read_24(const uint8_t * buffer, int position);
 uint32_t big_endian_read_32(const uint8_t * buffer, int position);
 
 /** 
- * @brief Write 16/32 bit big endian value into buffer
+ * @brief Write 08/16/32 bit big endian value into buffer
  * @param buffer
  * @param position in buffer
  * @param value
  */
+void big_endian_store_08(uint8_t * buffer, uint16_t position, uint8_t value);
 void big_endian_store_16(uint8_t * buffer, uint16_t position, uint16_t value);
 void big_endian_store_24(uint8_t * buffer, uint16_t position, uint32_t value);
 void big_endian_store_32(uint8_t * buffer, uint16_t position, uint32_t value);