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/************************************************************************************
* arch/arm/src/nuc1xx/nuc_lowputc.h
*
* Copyright (C) 2013 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_NUC1XX_NUC_LOWPUTC_H
#define __ARCH_ARM_SRC_NUC1XX_NUC_LOWPUTC_H
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include "nuc_config.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: nuc_lowsetup
*
* Description:
* Called at the very beginning of _start. Performs low level initialization.
*
************************************************************************************/
void nuc_lowsetup(void);
/****************************************************************************
* Name: nuc_setbaud
*
* Description:
* Set the BAUD divxisor for the selected UART
*
* Mode DIV_X_EN DIV_X_ONE Divider X BRD (Baud rate equation)
* -------------------------------------------------------------
* 0 Disable 0 B A UART_CLK / [16 * (A+2)]
* 1 Enable 0 B A UART_CLK / [(B+1) * (A+2)] , B must >= 8
* 2 Enable 1 Don't care A UART_CLK / (A+2), A must >=3
*
* Here we assume that the default clock source for the UART modules is
* the external high speed crystal.
*
*****************************************************************************/
#ifdef HAVE_UART
void nuc_setbaud(uintptr_t base, uint32_t baud);
#endif
/****************************************************************************
* Name: nuc_lowputc
*
* Description:
* Output one character to the UART using a simple polling method.
*
*****************************************************************************/
#ifdef HAVE_SERIAL_CONSOLE
void nuc_lowputc(uint32_t ch);
#endif
#undef EXTERN
#if defined(__cplusplus)
}
#endif
#endif /* __ASSEMBLY__ */
#endif /* __ARCH_ARM_SRC_NUC1XX_NUC_LOWPUTC_H */
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