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841b0d3d6d
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@2771 ebee16cc-31ac-478f-84a7-5cbb03baadba
78 lines
2.3 KiB
C
78 lines
2.3 KiB
C
/**
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******************************************************************************
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* @addtogroup PIOS PIOS Core hardware abstraction layer
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* @{
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* @addtogroup PIOS_USART USART Functions
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* @brief PIOS interface for USART port
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* @{
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*
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* @file pios_usart_priv.h
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* @author The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
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* Parts by Thorsten Klose (tk@midibox.org)
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* @brief USART private definitions.
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* @see The GNU Public License (GPL) Version 3
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*
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*****************************************************************************/
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/*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef PIOS_USART_PRIV_H
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#define PIOS_USART_PRIV_H
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#include <pios.h>
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#include <pios_stm32.h>
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#include "fifo_buffer.h"
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#include "pios_usart.h"
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extern const struct pios_com_driver pios_usart_com_driver;
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struct pios_usart_cfg {
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USART_TypeDef *regs;
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uint32_t remap; /* GPIO_Remap_* */
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USART_InitTypeDef init;
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struct stm32_gpio rx;
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struct stm32_gpio tx;
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struct stm32_irq irq;
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};
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enum pios_usart_dev_magic {
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PIOS_USART_DEV_MAGIC = 0x11223344,
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};
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struct pios_usart_dev {
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enum pios_usart_dev_magic magic;
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const struct pios_usart_cfg * cfg;
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// align to 32-bit to try and provide speed improvement;
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uint8_t rx_buffer[PIOS_USART_RX_BUFFER_SIZE] __attribute__ ((aligned(4)));
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t_fifo_buffer rx;
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// align to 32-bit to try and provide speed improvement;
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uint8_t tx_buffer[PIOS_USART_TX_BUFFER_SIZE] __attribute__ ((aligned(4)));
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t_fifo_buffer tx;
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};
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extern int32_t PIOS_USART_Init(uint32_t * usart_id, const struct pios_usart_cfg * cfg);
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extern void PIOS_USART_IRQ_Handler(uint32_t usart_id);
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#endif /* PIOS_USART_PRIV_H */
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/**
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* @}
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* @}
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*/
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