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/*
ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
This file is part of ChibiOS/RT.
ChibiOS/RT is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
ChibiOS/RT is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* @file serial.h
* @brief Serial Drivers macros and structures.
* @addtogroup Serial
* @{
*/
#ifndef _SERIAL_H_
#define _SERIAL_H_
#if CH_USE_SERIAL_FULLDUPLEX
/** No pending conditions.*/
#define SD_NO_ERROR 0
/** Connection happened.*/
#define SD_CONNECTED 1
/** Disconnection happened.*/
#define SD_DISCONNECTED 2
/** Parity error happened.*/
#define SD_PARITY_ERROR 4
/** Framing error happened.*/
#define SD_FRAMING_ERROR 8
/** Overflow happened.*/
#define SD_OVERRUN_ERROR 16
/** Break detected.*/
#define SD_BREAK_DETECTED 32
/** Serial Driver condition flags type.*/
typedef uint8_t dflags_t;
/**
* @brief @p FullDuplexDriver specific methods.
*/
struct _full_duplex_driver_methods {
};
/**
* @brief @p FullDuplexDriver specific data.
*/
struct _full_duplex_driver_data {
/**
* Input queue, incoming data can be read from this input queue by
* using the queues APIs.
*/
InputQueue iqueue;
/**
* Output queue, outgoing data can be written to this output queue by
* using the queues APIs.
*/
OutputQueue oqueue;
/**
* Status Change @p EventSource. This event is generated when one or more
* condition flags change.
*/
EventSource sevent;
/**
* I/O driver status flags.
*/
dflags_t flags;
};
/**
* @brief @p FullDuplexDriver virtual methods table.
*/
struct FullDuplexDriverVMT {
/**
* @p BaseChannel class inherited methods.
*/
struct _base_channel_methods m0;
/**
* @p BaseAsynchronousChannel class inherited methods.
*/
struct _base_asynchronous_channel_methods m1;
/**
* @p FullDuplexDriver specific methods.
*/
struct _full_duplex_driver_methods m2;
};
/**
* @extends BaseAsynchronousChannel
*
* @brief Full duplex serial driver class.
* @details This class extends @p GenericSerialDriver by adding physical I/O
* queues.
*/
typedef struct {
/**
* Virtual Methods Table.
*/
const struct FullDuplexDriverVMT *vmt;
/**
* @p BaseChannel class inherited data.
*/
struct _base_channel_data d0;
/**
* @p BaseAsynchronousChannel class inherited data.
*/
struct _base_asynchronous_channel_data d1;
/**
* @p FullDuplexDriver specific data.
*/
struct _full_duplex_driver_data d2;
} FullDuplexDriver;
#ifdef __cplusplus
extern "C" {
#endif
void chFDDInit(FullDuplexDriver *sd,
uint8_t *ib, size_t isize, qnotify_t inotify,
uint8_t *ob, size_t osize, qnotify_t onotify);
void chFDDIncomingDataI(FullDuplexDriver *sd, uint8_t b);
msg_t chFDDRequestDataI(FullDuplexDriver *sd);
void chFDDAddFlagsI(FullDuplexDriver *sd, dflags_t mask);
dflags_t chFDDGetAndClearFlags(FullDuplexDriver *sd);
#ifdef __cplusplus
}
#endif
/**
* @brief Direct output check on a @p FullDuplexDriver.
* @details This function bypasses the indirect access to the channel and
* checks directly the output queue. This is faster but cannot
* be used to check different channels implementations.
* @see chIOPutWouldBlock()
*/
#define chFDDPutWouldBlock(sd) chOQIsFull(&(sd)->d2.oqueue)
/**
* @brief Direct input check on a @p FullDuplexDriver.
* @details This function bypasses the indirect access to the channel and
* checks directly the input queue. This is faster but cannot
* be used to check different channels implementations.
* @see chIOGetWouldBlock()
*/
#define chFDDGetWouldBlock(sd) chIQIsEmpty(&(sd)->d2.iqueue)
/**
* @brief Direct blocking write to a @p FullDuplexDriver.
* @details This function bypasses the indirect access to the channel and
* writes directly on the output queue. This is faster but cannot
* be used to write to different channels implementations.
* @see chIOPut()
*/
#define chFDDPut(sd, b) chOQPut(&(sd)->d2.oqueue, b)
/**
* @brief Direct blocking write on a @p FullDuplexDriver with timeout
* specification.
* @details This function bypasses the indirect access to the channel and
* writes directly on the output queue. This is faster but cannot
* be used to write to different channels implementations.
* @see chIOPutTimeout()
*/
#define chFDDPutTimeout(sd, b, t) chOQPutTimeout(&(sd)->d2.iqueue, b, t)
/**
* @brief Direct blocking read from a @p FullDuplexDriver.
* @details This function bypasses the indirect access to the channel and
* reads directly from the input queue. This is faster but cannot
* be used to read from different channels implementations.
* @see chIOGet()
*/
#define chFDDGet(sd) chIQGet(&(sd)->d2.iqueue)
/**
* @brief Direct blocking read from a @p FullDuplexDriver with timeout
* specification.
* @details This function bypasses the indirect access to the channel and
* reads directly from the input queue. This is faster but cannot
* be used to read from different channels implementations.
* @see chIOGetTimeout()
*/
#define chFDDGetTimeout(sd, t) chIQGetTimeout(&(sd)->d2.iqueue, t)
/**
* @brief Direct non-blocking write to a @p FullDuplexDriver.
* @details This function bypasses the indirect access to the channel and
* writes directly to the output queue. This is faster but cannot
* be used to write from different channels implementations.
* @see chIOWrite()
*/
#define chFDDWrite(sd, b, n) chOQWrite(&(sd)->d2.oqueue, b, n)
/**
* @brief Direct non-blocking read on a @p FullDuplexDriver.
* @details This function bypasses the indirect access to the channel and
* reads directly from the input queue. This is faster but cannot
* be used to read from different channels implementations.
* @see chIORead()
*/
#define chFDDRead(sd, b, n) chIQRead(&(sd)->d2.iqueue, b, n)
#endif /* CH_USE_SERIAL_FULLDUPLEX */
#endif /* _SERIAL_H_ */
/** @} */
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