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72 lines
3.2 KiB
C
72 lines
3.2 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_COM COM layer functions
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* @brief Hardware communication layer
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* @{
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*
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* @file pios_com.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 COM layer functions header
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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_COM_H
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#define PIOS_COM_H
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typedef uint16_t (*pios_com_callback)(uint32_t context, uint8_t *buf, uint16_t buf_len, uint16_t *headroom, bool *task_woken);
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struct pios_com_driver {
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void (*init)(uint32_t id);
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void (*set_baud)(uint32_t id, uint32_t baud);
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void (*tx_start)(uint32_t id, uint16_t tx_bytes_avail);
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void (*rx_start)(uint32_t id, uint16_t rx_bytes_avail);
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void (*bind_rx_cb)(uint32_t id, pios_com_callback rx_in_cb, uint32_t context);
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void (*bind_tx_cb)(uint32_t id, pios_com_callback tx_out_cb, uint32_t context);
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uint32_t (*available)(uint32_t id);
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};
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/* Public Functions */
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extern int32_t PIOS_COM_Init(uint32_t *com_id, const struct pios_com_driver *driver, uint32_t lower_id, uint8_t *rx_buffer, uint16_t rx_buffer_len, uint8_t *tx_buffer, uint16_t tx_buffer_len);
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extern int32_t PIOS_COM_ChangeBaud(uint32_t com_id, uint32_t baud);
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extern int32_t PIOS_COM_SendCharNonBlocking(uint32_t com_id, char c);
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extern int32_t PIOS_COM_SendChar(uint32_t com_id, char c);
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extern int32_t PIOS_COM_SendBufferNonBlocking(uint32_t com_id, const uint8_t *buffer, uint16_t len);
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extern int32_t PIOS_COM_SendBuffer(uint32_t com_id, const uint8_t *buffer, uint16_t len);
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extern int32_t PIOS_COM_SendStringNonBlocking(uint32_t com_id, const char *str);
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extern int32_t PIOS_COM_SendString(uint32_t com_id, const char *str);
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extern int32_t PIOS_COM_SendFormattedStringNonBlocking(uint32_t com_id, const char *format, ...);
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extern int32_t PIOS_COM_SendFormattedString(uint32_t com_id, const char *format, ...);
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extern uint16_t PIOS_COM_ReceiveBuffer(uint32_t com_id, uint8_t *buf, uint16_t buf_len, uint32_t timeout_ms);
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extern uint32_t PIOS_COM_Available(uint32_t com_id);
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#define COM_AVAILABLE_NONE (0)
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#define COM_AVAILABLE_RX (1 << 0)
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#define COM_AVAILABLE_TX (1 << 1)
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#define COM_AVAILABLE_RXTX (COM_AVAILABLE_RX | COM_AVAILABLE_TX)
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#endif /* PIOS_COM_H */
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/**
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* @}
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* @}
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*/
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