l4re-base-25.08.0

src/l4/pkg/drivers-frst/uart/include/uart_lpuart.h

@@ -0,0 +1,35 @@
+/*
+ * Copyright (C) 2019, 2023-2024 Kernkonzept GmbH.
+ * Author(s): Adam Lackorzynski <adam@l4re.org>
+ *
+ * License: see LICENSE.spdx (in this directory or the directories above)
+ */
+#pragma once
+
+#include "uart_base.h"
+
+namespace L4 {
+
+class Uart_lpuart : public Uart
+{
+public:
+  /** freq == 0 means unknown and don't change baud rate */
+  Uart_lpuart(unsigned freq = 0) : _freq(freq) {}
+  bool startup(Io_register_block const *) override;
+  void shutdown() override;
+  bool change_mode(Transfer_mode m, Baud_rate r) override;
+  int tx_avail() const;
+  void wait_tx_done() const {}
+  inline void out_char(char c) const;
+  int write(char const *s, unsigned long count,
+            bool blocking = true) const override;
+
+  bool enable_rx_irq(bool enable = true) override;
+  int char_avail() const override;
+  int get_char(bool blocking = true) const override;
+
+private:
+  unsigned _freq;
+};
+
+} // namespace L4