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author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-07-07 15:29:13 +0000 |
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committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-07-07 15:29:13 +0000 |
commit | ac94ef18a7373645f708c1256df06e369ea9f371 (patch) | |
tree | f687b0a066cf60cf2f9bcd25b2e15fccf12f2849 /nuttx/arch/arm/src/lpc43xx/lpc43_uart.h | |
parent | 873dfa2ae7f7eb298fbae5a1e3e22d4877bbcb30 (diff) | |
download | px4-nuttx-ac94ef18a7373645f708c1256df06e369ea9f371.tar.gz px4-nuttx-ac94ef18a7373645f708c1256df06e369ea9f371.tar.bz2 px4-nuttx-ac94ef18a7373645f708c1256df06e369ea9f371.zip |
Straighten out LPC32 UART clocking (still some baud calculation issues)
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4917 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/arch/arm/src/lpc43xx/lpc43_uart.h')
-rw-r--r-- | nuttx/arch/arm/src/lpc43xx/lpc43_uart.h | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/nuttx/arch/arm/src/lpc43xx/lpc43_uart.h b/nuttx/arch/arm/src/lpc43xx/lpc43_uart.h new file mode 100644 index 000000000..1eeafc20b --- /dev/null +++ b/nuttx/arch/arm/src/lpc43xx/lpc43_uart.h @@ -0,0 +1,142 @@ +/**************************************************************************** + * arch/arm/src/lpc43xx/lpc43_uart.h + * + * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __ARCH_ARM_SRC_LPC43XX_LPC43_LOWSETUP_H +#define __ARCH_ARM_SRC_LPC43XX_LPC43_LOWSETUP_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include <nuttx/config.h> +#include "chip.h" +#include "chip/lpc43_uart.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Public Types + ****************************************************************************/ + +/**************************************************************************** + * Public Data + ****************************************************************************/ + +#ifndef __ASSEMBLY__ + +#undef EXTERN +#if defined(__cplusplus) +#define EXTERN extern "C" +extern "C" { +#else +#define EXTERN extern +#endif + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: lpc43_lowsetup + * + * Description: + * Called at the very beginning of _start. Performs low level + * initialization of the serial console. + * + ****************************************************************************/ + +EXTERN void lpc43_lowsetup(void); + +/**************************************************************************** + * Name: lpc43_usart0_reset, lpc43_uart1_reset, lpc43_usart2_reset, and + * lpc43_usart3_reset + * + * Description: + * Reset a U[S]ART. These functions are used by the serial driver when a + * U[S]ART is closed. + * + ****************************************************************************/ + +#ifdef CONFIG_LPC43_USART0 +EXTERN void lpc43_usart0_reset(void); +#endif +#ifdef CONFIG_LPC43_UART1 +EXTERN void lpc43_uart1_reset(void); +#endif +#ifdef CONFIG_LPC43_USART2 +EXTERN void lpc43_usart2_reset(void); +#endif +#ifdef CONFIG_LPC43_USART3 +EXTERN void lpc43_usart3_reset(void); +#endif + +/**************************************************************************** + * Name: lpc43_usart0_setup, lpc43_uart1_setup, lpc43_usart2_setup, and + * lpc43_usart3_setup + * + * Description: + * Configure the U[S]ART. This involves: + * + * 1. Connecting the input clock to the U[S]ART as specified in the + * board.h file, + * 2. Configuring the U[S]ART pins + * + ****************************************************************************/ + +#ifdef CONFIG_LPC43_USART0 +EXTERN void lpc43_usart0_setup(void); +#endif + +#ifdef CONFIG_LPC43_UART1 +EXTERN void lpc43_uart1_setup(void); +#endif + +#ifdef CONFIG_LPC43_USART2 +EXTERN void lpc43_usart2_setup(void); +#endif + +#ifdef CONFIG_LPC43_USART3 +EXTERN void lpc43_usart3_setup(void); +#endif + +#undef EXTERN +#if defined(__cplusplus) +} +#endif + +#endif /* __ASSEMBLY__ */ +#endif /* __ARCH_ARM_SRC_LPC43XX_LPC43_LOWSETUP_H */ |