nrfx: hal: uarte: Add function for setting PTR and MAXCNT

There are cases where only PTR or MAXCNT need to be updated and not
both. Since register access is costly use dedicated function instead
of setting both at once.

Signed-off-by: Krzysztof Chruściński <[email protected]>

Author: nordic-krch

nrfx/hal/nrf_uarte.h

@@ -703,6 +703,24 @@ NRF_STATIC_INLINE void nrf_uarte_configure(NRF_UARTE_Type           * p_reg,
 NRF_STATIC_INLINE void nrf_uarte_baudrate_set(NRF_UARTE_Type *     p_reg,
                                               nrf_uarte_baudrate_t baudrate);
 
+/**
+ * @brief Function for setting the transmit buffer length.
+ *
+ * @param[in] p_reg    Pointer to the structure of registers of the peripheral.
+ * @param[in] length   Maximum number of data bytes to receive.
+ */
+NRF_STATIC_INLINE void nrf_uarte_tx_maxcnt_set(NRF_UARTE_Type * p_reg,
+                                               size_t           length);
+
+/**
+ * @brief Function for setting the transmit buffer pointer.
+ *
+ * @param[in] p_reg    Pointer to the structure of registers of the peripheral.
+ * @param[in] p_buffer Pointer to the buffer for received data.
+ */
+NRF_STATIC_INLINE void nrf_uarte_tx_ptr_set(NRF_UARTE_Type * p_reg,
+                                            uint8_t  const * p_buffer);
+
 /**
  * @brief Function for setting the transmit buffer.
  *
@@ -732,6 +750,24 @@ NRF_STATIC_INLINE uint8_t const * nrf_uarte_tx_buffer_get(NRF_UARTE_Type * p_reg
  */
 NRF_STATIC_INLINE uint32_t nrf_uarte_tx_amount_get(NRF_UARTE_Type const * p_reg);
 
+/**
+ * @brief Function for setting the receive buffer length.
+ *
+ * @param[in] p_reg    Pointer to the structure of registers of the peripheral.
+ * @param[in] length   Maximum number of data bytes to receive.
+ */
+NRF_STATIC_INLINE void nrf_uarte_rx_maxcnt_set(NRF_UARTE_Type * p_reg,
+                                               size_t           length);
+
+/**
+ * @brief Function for setting the receive buffer pointer.
+ *
+ * @param[in] p_reg    Pointer to the structure of registers of the peripheral.
+ * @param[in] p_buffer Pointer to the buffer for received data.
+ */
+NRF_STATIC_INLINE void nrf_uarte_rx_ptr_set(NRF_UARTE_Type * p_reg,
+                                            uint8_t *        p_buffer);
+
 /**
  * @brief Function for setting the receive buffer.
  *
@@ -1020,19 +1056,34 @@ NRF_STATIC_INLINE void nrf_uarte_baudrate_set(NRF_UARTE_Type * p_reg, nrf_uarte_
     p_reg->BAUDRATE = baudrate;
 }
 
-NRF_STATIC_INLINE void nrf_uarte_tx_buffer_set(NRF_UARTE_Type * p_reg,
-                                               uint8_t  const * p_buffer,
+NRF_STATIC_INLINE void nrf_uarte_tx_maxcnt_set(NRF_UARTE_Type * p_reg,
                                                size_t           length)
 {
 #if NRF_UARTE_HAS_DMA_REG
-    p_reg->DMA.TX.PTR    = (uint32_t)p_buffer;
     p_reg->DMA.TX.MAXCNT = length;
 #else
-    p_reg->TXD.PTR    = (uint32_t)p_buffer;
     p_reg->TXD.MAXCNT = length;
 #endif
 }
 
+NRF_STATIC_INLINE void nrf_uarte_tx_ptr_set(NRF_UARTE_Type * p_reg,
+                                            uint8_t  const * p_buffer)
+{
+#if NRF_UARTE_HAS_DMA_REG
+    p_reg->DMA.TX.PTR = (uint32_t)p_buffer;
+#else
+    p_reg->TXD.PTR = (uint32_t)p_buffer;
+#endif
+}
+
+NRF_STATIC_INLINE void nrf_uarte_tx_buffer_set(NRF_UARTE_Type * p_reg,
+                                               uint8_t  const * p_buffer,
+                                               size_t           length)
+{
+    nrf_uarte_tx_ptr_set(p_reg, p_buffer);
+    nrf_uarte_tx_maxcnt_set(p_reg, length);
+}
+
 NRF_STATIC_INLINE uint8_t const * nrf_uarte_tx_buffer_get(NRF_UARTE_Type * p_reg)
 {
 #if NRF_UARTE_HAS_DMA_REG
@@ -1051,19 +1102,34 @@ NRF_STATIC_INLINE uint32_t nrf_uarte_tx_amount_get(NRF_UARTE_Type const * p_reg)
 #endif
 }
 
-NRF_STATIC_INLINE void nrf_uarte_rx_buffer_set(NRF_UARTE_Type * p_reg,
-                                               uint8_t *        p_buffer,
+NRF_STATIC_INLINE void nrf_uarte_rx_maxcnt_set(NRF_UARTE_Type * p_reg,
                                                size_t           length)
 {
 #if NRF_UARTE_HAS_DMA_REG
-    p_reg->DMA.RX.PTR    = (uint32_t)p_buffer;
     p_reg->DMA.RX.MAXCNT = length;
 #else
-    p_reg->RXD.PTR    = (uint32_t)p_buffer;
     p_reg->RXD.MAXCNT = length;
 #endif
 }
 
+NRF_STATIC_INLINE void nrf_uarte_rx_ptr_set(NRF_UARTE_Type * p_reg,
+                                            uint8_t *        p_buffer)
+{
+#if NRF_UARTE_HAS_DMA_REG
+    p_reg->DMA.RX.PTR = (uint32_t)p_buffer;
+#else
+    p_reg->RXD.PTR = (uint32_t)p_buffer;
+#endif
+}
+
+NRF_STATIC_INLINE void nrf_uarte_rx_buffer_set(NRF_UARTE_Type * p_reg,
+                                               uint8_t *        p_buffer,
+                                               size_t           length)
+{
+    nrf_uarte_rx_ptr_set(p_reg, p_buffer);
+    nrf_uarte_rx_maxcnt_set(p_reg, length);
+}
+
 NRF_STATIC_INLINE uint8_t * nrf_uarte_rx_buffer_get(NRF_UARTE_Type * p_reg)
 {
 #if NRF_UARTE_HAS_DMA_REG