121 lines
4.4 KiB
C
121 lines
4.4 KiB
C
/****************************************************************************
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* arch/arm/src/lpc17xx_40xx/lpc17_40_serial.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __ARCH_ARM_SRC_LPC17XX_40XX_LPC17_40_SERIAL_H
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#define __ARCH_ARM_SRC_LPC17XX_40XX_LPC17_40_SERIAL_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <arch/board/board.h>
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#include "hardware/lpc17_40_uart.h"
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#include "hardware/lpc17_40_syscon.h"
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#include "lpc17_40_gpio.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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/* Are any UARTs enabled? */
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#undef HAVE_UART
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#if defined(CONFIG_LPC17_40_UART0) || defined(CONFIG_LPC17_40_UART1) || \
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defined(CONFIG_LPC17_40_UART2) || defined(CONFIG_LPC17_40_UART3)
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# define HAVE_UART 1
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#endif
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/* Is there a serial console? There should be at most one defined.
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* It could be on any UARTn, n=0,1,2,3
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*/
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#if defined(CONFIG_UART0_SERIAL_CONSOLE) && defined(CONFIG_LPC17_40_UART0)
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# undef CONFIG_UART1_SERIAL_CONSOLE
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# undef CONFIG_UART2_SERIAL_CONSOLE
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# undef CONFIG_UART3_SERIAL_CONSOLE
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# define HAVE_CONSOLE 1
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#elif defined(CONFIG_UART1_SERIAL_CONSOLE) && defined(CONFIG_LPC17_40_UART1)
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# undef CONFIG_UART0_SERIAL_CONSOLE
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# undef CONFIG_UART2_SERIAL_CONSOLE
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# undef CONFIG_UART3_SERIAL_CONSOLE
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# define HAVE_CONSOLE 1
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#elif defined(CONFIG_UART2_SERIAL_CONSOLE) && defined(CONFIG_LPC17_40_UART2)
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# undef CONFIG_UART0_SERIAL_CONSOLE
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# undef CONFIG_UART1_SERIAL_CONSOLE
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# undef CONFIG_UART3_SERIAL_CONSOLE
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# define HAVE_CONSOLE 1
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#elif defined(CONFIG_UART3_SERIAL_CONSOLE) && defined(CONFIG_LPC17_40_UART3)
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# undef CONFIG_UART0_SERIAL_CONSOLE
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# undef CONFIG_UART1_SERIAL_CONSOLE
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# undef CONFIG_UART2_SERIAL_CONSOLE
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# define HAVE_CONSOLE 1
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#else
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# undef CONFIG_UART0_SERIAL_CONSOLE
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# undef CONFIG_UART1_SERIAL_CONSOLE
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# undef CONFIG_UART2_SERIAL_CONSOLE
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# undef CONFIG_UART3_SERIAL_CONSOLE
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# undef HAVE_CONSOLE
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#endif
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/* Check UART flow control (Only supported by UART1) */
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# undef CONFIG_UART0_IFLOWCONTROL
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# undef CONFIG_UART0_OFLOWCONTROL
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# undef CONFIG_UART2_IFLOWCONTROL
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# undef CONFIG_UART2_OFLOWCONTROL
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# undef CONFIG_UART3_IFLOWCONTROL
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# undef CONFIG_UART3_OFLOWCONTROL
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#ifndef CONFIG_LPC17_40_UART1
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# undef CONFIG_UART1_IFLOWCONTROL
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# undef CONFIG_UART1_OFLOWCONTROL
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#endif
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/* We cannot allow the DLM/DLL divisor to become to small or will will lose
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* too much accuracy. This following is a "fudge factor" that represents the
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* minimum value of the divisor that we will permit.
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*/
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#define UART_MINDL 32
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Inline Functions
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****************************************************************************/
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/****************************************************************************
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* Public Functions Prototypes
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****************************************************************************/
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void up_setbaud(uintptr_t uartbase, uint32_t basefreq, uint32_t baud);
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#endif /* __ARCH_ARM_SRC_LPC17XX_40XX_LPC17_40_SERIAL_H */
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