lps27hhw: added endianness support #7

Author: albezanc

lps27hhw_STdC/driver/lps27hhw_reg.c

@@ -6,7 +6,7 @@
  ******************************************************************************
  * @attention
  *
- * <h2><center>&copy; Copyright (c) 2019 STMicroelectronics.
+ * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.
  * All rights reserved.</center></h2>
  *
  * This software component is licensed by ST under BSD 3-Clause license,
@@ -418,10 +418,15 @@ int32_t lps27hhw_data_rate_get(stmdev_ctx_t *ctx, lps27hhw_odr_t *val)
   * @retval          interface status (MANDATORY: return 0 -> no Error)
   *
   */
-int32_t lps27hhw_pressure_ref_set(stmdev_ctx_t *ctx, uint8_t *buff)
+int32_t lps27hhw_pressure_ref_set(stmdev_ctx_t *ctx, int16_t val)
 {
+  uint8_t buff[2];
   int32_t ret;
+
+  buff[1] = (uint8_t) ((uint16_t)val / 256U);
+  buff[0] = (uint8_t) ((uint16_t)val - (buff[1] * 256U));
   ret = lps27hhw_write_reg(ctx, LPS27HHW_REF_P_L, buff, 2);
+
   return ret;
 }
 
@@ -436,10 +441,15 @@ int32_t lps27hhw_pressure_ref_set(stmdev_ctx_t *ctx, uint8_t *buff)
   * @retval          interface status (MANDATORY: return 0 -> no Error)
   *
   */
-int32_t lps27hhw_pressure_ref_get(stmdev_ctx_t *ctx, uint8_t *buff)
+int32_t lps27hhw_pressure_ref_get(stmdev_ctx_t *ctx, int16_t *val)
 {
+  uint8_t buff[2];
   int32_t ret;
+
   ret =  lps27hhw_read_reg(ctx, LPS27HHW_REF_P_L, buff, 2);
+  *val = (int16_t)buff[1];
+  *val = (*val * 256) + (int16_t)buff[0];
+
   return ret;
 }
 
@@ -453,10 +463,15 @@ int32_t lps27hhw_pressure_ref_get(stmdev_ctx_t *ctx, uint8_t *buff)
   * @retval          interface status (MANDATORY: return 0 -> no Error)
   *
   */
-int32_t lps27hhw_pressure_offset_set(stmdev_ctx_t *ctx, uint8_t *buff)
+int32_t lps27hhw_pressure_offset_set(stmdev_ctx_t *ctx, int16_t val)
 {
+  uint8_t buff[2];
   int32_t ret;
+
+  buff[1] = (uint8_t) ((uint16_t)val / 256U);
+  buff[0] = (uint8_t) ((uint16_t)val - (buff[1] * 256U));
   ret =  lps27hhw_write_reg(ctx, LPS27HHW_RPDS_L, buff, 2);
+
   return ret;
 }
 
@@ -471,10 +486,15 @@ int32_t lps27hhw_pressure_offset_set(stmdev_ctx_t *ctx, uint8_t *buff)
   * @retval          interface status (MANDATORY: return 0 -> no Error)
   *
   */
-int32_t lps27hhw_pressure_offset_get(stmdev_ctx_t *ctx, uint8_t *buff)
+int32_t lps27hhw_pressure_offset_get(stmdev_ctx_t *ctx, int16_t *val)
 {
+  uint8_t buff[2];
   int32_t ret;
+
   ret =  lps27hhw_read_reg(ctx, LPS27HHW_RPDS_L, buff, 2);
+  *val = (int16_t)buff[1];
+  *val = (*val * 256) + (int16_t)buff[0];
+
   return ret;
 }
 
@@ -576,10 +596,17 @@ int32_t lps27hhw_temp_flag_data_ready_get(stmdev_ctx_t *ctx, uint8_t *val)
   * @retval          interface status (MANDATORY: return 0 -> no Error)
   *
   */
-int32_t lps27hhw_pressure_raw_get(stmdev_ctx_t *ctx, uint8_t *buff)
+int32_t lps27hhw_pressure_raw_get(stmdev_ctx_t *ctx, uint32_t *buff)
 {
+  uint8_t reg[3];
   int32_t ret;
-  ret =  lps27hhw_read_reg(ctx, LPS27HHW_PRESS_OUT_XL, buff, 3);
+
+  ret =  lps27hhw_read_reg(ctx, LPS27HHW_PRESS_OUT_XL, reg, 3);
+  *buff = reg[2];
+  *buff = (*buff * 256) + reg[1];
+  *buff = (*buff * 256) + reg[0];
+  *buff *= 256;
+
   return ret;
 }
 
@@ -591,10 +618,15 @@ int32_t lps27hhw_pressure_raw_get(stmdev_ctx_t *ctx, uint8_t *buff)
   * @retval          interface status (MANDATORY: return 0 -> no Error)
   *
   */
-int32_t lps27hhw_temperature_raw_get(stmdev_ctx_t *ctx, uint8_t *buff)
+int32_t lps27hhw_temperature_raw_get(stmdev_ctx_t *ctx, int16_t *buff)
 {
+  uint8_t reg[2];
   int32_t ret;
-  ret =  lps27hhw_read_reg(ctx, LPS27HHW_TEMP_OUT_L, buff, 2);
+
+  ret =  lps27hhw_read_reg(ctx, LPS27HHW_TEMP_OUT_L, reg, 2);
+  *buff = reg[1];
+  *buff = (*buff * 256) + reg[0];
+
   return ret;
 }
 
@@ -606,10 +638,17 @@ int32_t lps27hhw_temperature_raw_get(stmdev_ctx_t *ctx, uint8_t *buff)
   * @retval          interface status (MANDATORY: return 0 -> no Error)
   *
   */
-int32_t lps27hhw_fifo_pressure_raw_get(stmdev_ctx_t *ctx, uint8_t *buff)
+int32_t lps27hhw_fifo_pressure_raw_get(stmdev_ctx_t *ctx, uint32_t *buff)
 {
+  uint8_t reg[3];
   int32_t ret;
-  ret =  lps27hhw_read_reg(ctx, LPS27HHW_FIFO_DATA_OUT_PRESS_XL, buff, 3);
+
+  ret =  lps27hhw_read_reg(ctx, LPS27HHW_FIFO_DATA_OUT_PRESS_XL, reg, 3);
+  *buff = reg[2];
+  *buff = (*buff * 256) + reg[1];
+  *buff = (*buff * 256) + reg[0];
+  *buff *= 256;
+
   return ret;
 }
 
@@ -621,10 +660,15 @@ int32_t lps27hhw_fifo_pressure_raw_get(stmdev_ctx_t *ctx, uint8_t *buff)
   * @retval          interface status (MANDATORY: return 0 -> no Error)
   *
   */
-int32_t lps27hhw_fifo_temperature_raw_get(stmdev_ctx_t *ctx, uint8_t *buff)
+int32_t lps27hhw_fifo_temperature_raw_get(stmdev_ctx_t *ctx, int16_t *buff)
 {
+  uint8_t reg[2];
   int32_t ret;
-  ret =  lps27hhw_read_reg(ctx, LPS27HHW_FIFO_DATA_OUT_TEMP_L, buff, 2);
+
+  ret =  lps27hhw_read_reg(ctx, LPS27HHW_FIFO_DATA_OUT_TEMP_L, reg, 2);
+  *buff = reg[1];
+  *buff = (*buff * 256) + reg[0];
+
   return ret;
 }