diff options
Diffstat (limited to 'os/hal/platforms/LPC111x/serial_lld.h')
| -rw-r--r-- | os/hal/platforms/LPC111x/serial_lld.h | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/os/hal/platforms/LPC111x/serial_lld.h b/os/hal/platforms/LPC111x/serial_lld.h new file mode 100644 index 000000000..f98e19050 --- /dev/null +++ b/os/hal/platforms/LPC111x/serial_lld.h @@ -0,0 +1,158 @@ +/*
+ ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010 Giovanni Di Sirio.
+
+ This file is part of ChibiOS/RT.
+
+ ChibiOS/RT is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ ChibiOS/RT is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/**
+ * @file LPC111x/serial_lld.h
+ * @brief LPC111x low level serial driver header.
+ *
+ * @addtogroup LPC111x_SERIAL
+ * @{
+ */
+
+#ifndef _SERIAL_LLD_H_
+#define _SERIAL_LLD_H_
+
+#if CH_HAL_USE_SERIAL || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver pre-compile time settings. */
+/*===========================================================================*/
+
+/**
+ * @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(USE_LPC111x_UART0) || defined(__DOXYGEN__)
+#define USE_LPC111x_UART0 TRUE
+#endif
+
+/**
+ * @brief FIFO preload parameter.
+ * @details Configuration parameter, this values defines how many bytes are
+ * preloaded in the HW transmit FIFO for each interrupt, the maximum value is
+ * 16 the minimum is 1.
+ * @note An high value reduces the number of interrupts generated but can
+ * also increase the worst case interrupt response time because the
+ * preload loops.
+ */
+#if !defined(LPC111x_UART_FIFO_PRELOAD) || defined(__DOXYGEN__)
+#define LPC111x_UART_FIFO_PRELOAD 16
+#endif
+
+/**
+ * @brief UART0 interrupt priority level setting.
+ */
+#if !defined(LPC111x_UART0_PRIORITY) || defined(__DOXYGEN__)
+#define LPC111x_UART0_PRIORITY 3
+#endif
+
+/*===========================================================================*/
+/* Derived constants and error checks. */
+/*===========================================================================*/
+
+#if (LPC111x_UART_FIFO_PRELOAD < 1) || (LPC111x_UART_FIFO_PRELOAD > 16)
+#error "invalid LPC214x_UART_FIFO_PRELOAD setting"
+#endif
+
+/*===========================================================================*/
+/* Driver data structures and types. */
+/*===========================================================================*/
+
+/**
+ * @brief Serial Driver condition flags type.
+ */
+typedef uint32_t sdflags_t;
+
+/**
+ * @brief LPC214x 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.
+ */
+typedef struct {
+ /**
+ * @brief Bit rate.
+ */
+ uint32_t sc_speed;
+ /**
+ * @brief Initialization value for the LCR register.
+ */
+ uint32_t sc_lcr;
+ /**
+ * @brief Initialization value for the FCR register.
+ */
+ uint32_t sc_fcr;
+} SerialConfig;
+
+/**
+ * @brief @p SerialDriver specific data.
+ */
+#define _serial_driver_data \
+ _base_asynchronous_channel_data \
+ /* Driver state.*/ \
+ sdstate_t state; \
+ /* Current configuration data.*/ \
+ const SerialConfig *config; \
+ /* Input queue.*/ \
+ InputQueue iqueue; \
+ /* Output queue.*/ \
+ OutputQueue oqueue; \
+ /* Status Change @p EventSource.*/ \
+ EventSource sevent; \
+ /* I/O driver status flags.*/ \
+ sdflags_t flags; \
+ /* Input circular buffer.*/ \
+ uint8_t ib[SERIAL_BUFFERS_SIZE]; \
+ /* Output circular buffer.*/ \
+ uint8_t ob[SERIAL_BUFFERS_SIZE]; \
+ /* End of the mandatory fields.*/ \
+ /* Pointer to the USART registers block.*/ \
+ LPC_UART_TypeDef *uart;
+
+/*===========================================================================*/
+/* Driver macros. */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations. */
+/*===========================================================================*/
+
+#if USE_LPC111x_UART0 && !defined(__DOXYGEN__)
+extern SerialDriver SD1;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+ void sd_lld_init(void);
+ void sd_lld_start(SerialDriver *sdp);
+ void sd_lld_stop(SerialDriver *sdp);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* CH_HAL_USE_SERIAL */
+
+#endif /* _SERIAL_LLD_H_ */
+
+/** @} */
|