1 files changed, 448 insertions, 0 deletions
diff --git a/os/hal/ports/TIVA/LLD/UART/hal_serial_lld.h b/os/hal/ports/TIVA/LLD/UART/hal_serial_lld.h
new file mode 100644
index 0000000..bde999e
--- /dev/null
+++ b/os/hal/ports/TIVA/LLD/UART/hal_serial_lld.h
@@ -0,0 +1,448 @@
+/*
+    Copyright (C) 2014..2017 Marco Veeneman
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    UART/hal_serial_lld.h
+ * @brief   Tiva low level serial driver header.
+ *
+ * @addtogroup SERIAL
+ * @{
+ */
+
+#ifndef HAL_SERIAL_LLD_H
+#define HAL_SERIAL_LLD_H
+
+#if HAL_USE_SERIAL || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants.                                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   Advanced buffering support switch.
+ * @details This constants enables the advanced buffering support in the
+ *          low level driver, the queue buffer is no more part of the
+ *          @p SerialDriver structure, each driver can have a different
+ *          queue size.
+ */
+#define SERIAL_ADVANCED_BUFFERING_SUPPORT   TRUE
+
+/*===========================================================================*/
+/* Driver pre-compile time settings.                                         */
+/*===========================================================================*/
+
+/**
+ * @name    Configuration options
+ * @{
+ */
+/**
+ * @brief   UART0 driver enable switch.
+ * @details If set to @p TRUE the support for UART0 is included.
+ * @note    The default is @p TRUE.
+ */
+#if !defined(TIVA_SERIAL_USE_UART0) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_USE_UART0           FALSE
+#endif
+
+/**
+ * @brief   UART1 driver enable switch.
+ * @details If set to @p TRUE the support for UART1 is included.
+ * @note    The default is @p FALSE .
+ */
+#if !defined(TIVA_SERIAL_USE_UART1) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_USE_UART1           FALSE
+#endif
+
+/**
+ * @brief   UART2 driver enable switch.
+ * @details If set to @p TRUE the support for UART2 is included.
+ * @note    The default is @p FALSE .
+ */
+#if !defined(TIVA_SERIAL_USE_UART2) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_USE_UART2           FALSE
+#endif
+
+/**
+ * @brief   UART3 driver enable switch.
+ * @details If set to @p TRUE the support for UART3 is included.
+ * @note    The default is @p FALSE .
+ */
+#if !defined(TIVA_SERIAL_USE_UART3) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_USE_UART3           FALSE
+#endif
+
+/**
+ * @brief   UART4 driver enable switch.
+ * @details If set to @p TRUE the support for UART4 is included.
+ * @note    The default is @p FALSE .
+ */
+#if !defined(TIVA_SERIAL_USE_UART4) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_USE_UART4           FALSE
+#endif
+
+/**
+ * @brief   UART5 driver enable switch.
+ * @details If set to @p TRUE the support for UART5 is included.
+ * @note    The default is @p FALSE .
+ */
+#if !defined(TIVA_SERIAL_USE_UART5) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_USE_UART5           FALSE
+#endif
+
+/**
+ * @brief   UART6 driver enable switch.
+ * @details If set to @p TRUE the support for UART6 is included.
+ * @note    The default is @p FALSE .
+ */
+#if !defined(TIVA_SERIAL_USE_UART6) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_USE_UART6           FALSE
+#endif
+
+/**
+ * @brief   UART7 driver enable switch.
+ * @details If set to @p TRUE the support for UART7 is included.
+ * @note    The default is @p FALSE .
+ */
+#if !defined(TIVA_SERIAL_USE_UART7) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_USE_UART7           FALSE
+#endif
+
+/**
+ * @brief   UART0 interrupt priority level setting.
+ */
+#if !defined(TIVA_SERIAL_UART0_PRIORITY) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART0_PRIORITY      5
+#endif
+
+/**
+ * @brief   UART1 interrupt priority level setting.
+ */
+#if !defined(TIVA_SERIAL_UART1_PRIORITY) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART1_PRIORITY      5
+#endif
+
+/**
+ * @brief   UART2 interrupt priority level setting.
+ */
+#if !defined(TIVA_SERIAL_UART2_PRIORITY) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART2_PRIORITY      5
+#endif
+
+/**
+ * @brief   UART3 interrupt priority level setting.
+ */
+#if !defined(TIVA_SERIAL_UART3_PRIORITY) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART3_PRIORITY      5
+#endif
+
+/**
+ * @brief   UART4 interrupt priority level setting.
+ */
+#if !defined(TIVA_SERIAL_UART4_PRIORITY) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART4_PRIORITY      5
+#endif
+
+/**
+ * @brief   UART5 interrupt priority level setting.
+ */
+#if !defined(TIVA_SERIAL_UART5_PRIORITY) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART5_PRIORITY      5
+#endif
+
+/**
+ * @brief   UART6 interrupt priority level setting.
+ */
+#if !defined(TIVA_SERIAL_UART6_PRIORITY) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART6_PRIORITY      5
+#endif
+
+/**
+ * @brief   UART7 interrupt priority level setting.
+ */
+#if !defined(TIVA_SERIAL_UART7_PRIORITY) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART7_PRIORITY      5
+#endif
+
+/**
+ * @brief   Input buffer size for UART0.
+ */
+#if !defined(TIVA_SERIAL_UART0_IN_BUF_SIZE) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART0_IN_BUF_SIZE   SERIAL_BUFFERS_SIZE
+#endif
+
+/**
+ * @brief   Output buffer size for UART0.
+ */
+#if !defined(TIVA_SERIAL_UART0_OUT_BUF_SIZE) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART0_OUT_BUF_SIZE  SERIAL_BUFFERS_SIZE
+#endif
+
+/**
+ * @brief   Input buffer size for UART1.
+ */
+#if !defined(TIVA_SERIAL_UART1_IN_BUF_SIZE) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART1_IN_BUF_SIZE   SERIAL_BUFFERS_SIZE
+#endif
+
+/**
+ * @brief   Output buffer size for UART1.
+ */
+#if !defined(TIVA_SERIAL_UART1_OUT_BUF_SIZE) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART1_OUT_BUF_SIZE  SERIAL_BUFFERS_SIZE
+#endif
+
+/**
+ * @brief   Input buffer size for UART2.
+ */
+#if !defined(TIVA_SERIAL_UART2_IN_BUF_SIZE) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART2_IN_BUF_SIZE   SERIAL_BUFFERS_SIZE
+#endif
+
+/**
+ * @brief   Output buffer size for UART2.
+ */
+#if !defined(TIVA_SERIAL_UART2_OUT_BUF_SIZE) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART2_OUT_BUF_SIZE  SERIAL_BUFFERS_SIZE
+#endif
+
+/**
+ * @brief   Input buffer size for UART3.
+ */
+#if !defined(TIVA_SERIAL_UART3_IN_BUF_SIZE) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART3_IN_BUF_SIZE   SERIAL_BUFFERS_SIZE
+#endif
+
+/**
+ * @brief   Output buffer size for UART3.
+ */
+#if !defined(TIVA_SERIAL_UART3_OUT_BUF_SIZE) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART3_OUT_BUF_SIZE  SERIAL_BUFFERS_SIZE
+#endif
+
+/**
+ * @brief   Input buffer size for UART4.
+ */
+#if !defined(TIVA_SERIAL_UART4_IN_BUF_SIZE) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART4_IN_BUF_SIZE   SERIAL_BUFFERS_SIZE
+#endif
+
+/**
+ * @brief   Output buffer size for UART4.
+ */
+#if !defined(TIVA_SERIAL_UART4_OUT_BUF_SIZE) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART4_OUT_BUF_SIZE  SERIAL_BUFFERS_SIZE
+#endif
+
+/**
+ * @brief   Input buffer size for UART5.
+ */
+#if !defined(TIVA_SERIAL_UART5_IN_BUF_SIZE) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART5_IN_BUF_SIZE   SERIAL_BUFFERS_SIZE
+#endif
+
+/**
+ * @brief   Output buffer size for UART5.
+ */
+#if !defined(TIVA_SERIAL_UART5_OUT_BUF_SIZE) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART5_OUT_BUF_SIZE  SERIAL_BUFFERS_SIZE
+#endif
+
+/**
+ * @brief   Input buffer size for UART6.
+ */
+#if !defined(TIVA_SERIAL_UART6_IN_BUF_SIZE) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART6_IN_BUF_SIZE   SERIAL_BUFFERS_SIZE
+#endif
+
+/**
+ * @brief   Output buffer size for UART6.
+ */
+#if !defined(TIVA_SERIAL_UART6_OUT_BUF_SIZE) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART6_OUT_BUF_SIZE  SERIAL_BUFFERS_SIZE
+#endif
+
+/**
+ * @brief   Input buffer size for UART7.
+ */
+#if !defined(TIVA_SERIAL_UART7_IN_BUF_SIZE) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART7_IN_BUF_SIZE   SERIAL_BUFFERS_SIZE
+#endif
+
+/**
+ * @brief   Output buffer size for UART7.
+ */
+#if !defined(TIVA_SERIAL_UART7_OUT_BUF_SIZE) || defined(__DOXYGEN__)
+#define TIVA_SERIAL_UART7_OUT_BUF_SIZE  SERIAL_BUFFERS_SIZE
+#endif
+/** @} */
+
+/*===========================================================================*/
+/* Derived constants and error checks.                                       */
+/*===========================================================================*/
+
+#if !TIVA_SERIAL_USE_UART0 && !TIVA_SERIAL_USE_UART1 && \
+    !TIVA_SERIAL_USE_UART2 && !TIVA_SERIAL_USE_UART3 && \
+	!TIVA_SERIAL_USE_UART4 && !TIVA_SERIAL_USE_UART5 && \
+    !TIVA_SERIAL_USE_UART6 && !TIVA_SERIAL_USE_UART7
+#error "SERIAL driver activated but no UART peripheral assigned"
+#endif
+
+#if TIVA_SERIAL_USE_UART0 && \
+    !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_SERIAL_UART0_PRIORITY)
+#error "Invalid IRQ priority assigned to UART0"
+#endif
+
+#if TIVA_SERIAL_USE_UART1 && \
+    !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_SERIAL_UART1_PRIORITY)
+#error "Invalid IRQ priority assigned to UART1"
+#endif
+
+#if TIVA_SERIAL_USE_UART2 && \
+    !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_SERIAL_UART2_PRIORITY)
+#error "Invalid IRQ priority assigned to UART2"
+#endif
+
+#if TIVA_SERIAL_USE_UART3 && \
+    !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_SERIAL_UART3_PRIORITY)
+#error "Invalid IRQ priority assigned to UART3"
+#endif
+
+#if TIVA_SERIAL_USE_UART4 && \
+    !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_SERIAL_UART4_PRIORITY)
+#error "Invalid IRQ priority assigned to UART4"
+#endif
+
+#if TIVA_SERIAL_USE_UART5 && \
+    !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_SERIAL_UART5_PRIORITY)
+#error "Invalid IRQ priority assigned to UART5"
+#endif
+
+#if TIVA_SERIAL_USE_UART6 && \
+    !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_SERIAL_UART6_PRIORITY)
+#error "Invalid IRQ priority assigned to UART6"
+#endif
+
+#if TIVA_SERIAL_USE_UART7 && \
+    !OSAL_IRQ_IS_VALID_PRIORITY(TIVA_SERIAL_UART7_PRIORITY)
+#error "Invalid IRQ priority assigned to UART7"
+#endif
+
+/*===========================================================================*/
+/* Driver data structures and types.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   Tiva Serial Driver configuration structure.
+ * @details An instance of this structure must be passed to @p sdStart()
+ *          in order to configure and start a serial driver operations.
+ * @note    This structure content is architecture dependent, each driver
+ *          implementation defines its own version and the custom static
+ *          initializers.
+ */
+typedef struct {
+  /**
+   * @brief Bit rate.
+   */
+  uint32_t                  speed;
+  /* End of the mandatory fields. */
+  /**
+   * @brief Initialization value for the CTL register.
+   */
+  uint16_t                  ctl;
+  /**
+   * @brief Initialization value for the LCRH register.
+   */
+  uint8_t                   lcrh;
+  /**
+   * @brief Initialization value for the IFLS register.
+   */
+  uint8_t                   ifls;
+  /**
+   * @brief Initialization value for the CC register.
+   */
+  uint8_t                   cc;
+} SerialConfig;
+
+/**
+ * @brief @p SerialDriver specific data.
+ */
+#define _serial_driver_data                                                 \
+  _base_asynchronous_channel_data                                           \
+  /* Driver state.*/                                                        \
+  sdstate_t                 state;                                          \
+  /* Input queue.*/                                                         \
+  input_queue_t             iqueue;                                         \
+  /* Output queue.*/                                                        \
+  output_queue_t            oqueue;                                         \
+  /* End of the mandatory fields.*/                                         \
+  /* Pointer to the USART registers block.*/                                \
+  uint32_t                  uart;
+
+/*===========================================================================*/
+/* Driver macros.                                                            */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations.                                                    */
+/*===========================================================================*/
+
+#if TIVA_SERIAL_USE_UART0 && !defined(__DOXYGEN__)
+extern SerialDriver SD1;
+#endif
+
+#if TIVA_SERIAL_USE_UART1 && !defined(__DOXYGEN__)
+extern SerialDriver SD2;
+#endif
+
+#if TIVA_SERIAL_USE_UART2 && !defined(__DOXYGEN__)
+extern SerialDriver SD3;
+#endif
+
+#if TIVA_SERIAL_USE_UART3 && !defined(__DOXYGEN__)
+extern SerialDriver SD4;
+#endif
+
+#if TIVA_SERIAL_USE_UART4 && !defined(__DOXYGEN__)
+extern SerialDriver SD5;
+#endif
+
+#if TIVA_SERIAL_USE_UART5 && !defined(__DOXYGEN__)
+extern SerialDriver SD6;
+#endif
+
+#if TIVA_SERIAL_USE_UART6 && !defined(__DOXYGEN__)
+extern SerialDriver SD7;
+#endif
+
+#if TIVA_SERIAL_USE_UART7 && !defined(__DOXYGEN__)
+extern SerialDriver SD8;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void sd_lld_init(void);
+  void sd_lld_start(SerialDriver *sdp, const SerialConfig *config);
+  void sd_lld_stop(SerialDriver *sdp);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_SERIAL */
+
+#endif /* HAL_SERIAL_LLD_H */
+
+/** @} */