git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1079 35acf78f-673a-0410-8e92-d51de3d6d3f4
gdisirio
parent
5b043b62ef
commit
f6b7b4d844
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@ -8,7 +8,6 @@ KERNSRC = ../../os/kernel/src/chsys.c ../../os/kernel/src/chdebug.c \
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../../os/kernel/src/chmsg.c ../../os/kernel/src/chmboxes.c \
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../../os/kernel/src/chqueues.c ../../os/kernel/src/chheap.c \
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../../os/kernel/src/chmempools.c
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# ../../os/kernel/src/chserial.c
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# Required include directories
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KERNINC = ../../os/kernel/include
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@ -1,168 +0,0 @@
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/*
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ChibiOS/RT - Copyright (C) 2006-2007 Giovanni Di Sirio.
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This file is part of ChibiOS/RT.
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ChibiOS/RT 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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ChibiOS/RT is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file chserial.c
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* @brief Serial Drivers code.
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* @addtogroup Serial
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* @{
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*/
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#include <ch.h>
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#if CH_USE_SERIAL_FULLDUPLEX
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/*
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* Interface implementation, the following functions just invoke the equivalent
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* queue-level function or macro.
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*/
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static bool_t putwouldblock(void *instance) {
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return chOQIsFull(&((FullDuplexDriver *)instance)->d2.oqueue);
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}
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static bool_t getwouldblock(void *instance) {
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return chIQIsEmpty(&((FullDuplexDriver *)instance)->d2.iqueue);
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}
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static msg_t put(void *instance, uint8_t b, systime_t timeout) {
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return chOQPutTimeout(&((FullDuplexDriver *)instance)->d2.oqueue, b, timeout);
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}
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static msg_t get(void *instance, systime_t timeout) {
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return chIQGetTimeout(&((FullDuplexDriver *)instance)->d2.iqueue, timeout);
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}
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static size_t write(void *instance, uint8_t *buffer, size_t n) {
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return chOQWrite(&((FullDuplexDriver *)instance)->d2.oqueue, buffer, n);
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}
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static size_t read(void *instance, uint8_t *buffer, size_t n) {
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return chIQRead(&((FullDuplexDriver *)instance)->d2.iqueue, buffer, n);
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}
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static const struct FullDuplexDriverVMT vmt = {
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{putwouldblock, getwouldblock, put, get},
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{write, read},
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{}
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};
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/**
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* @brief Initializes a generic full duplex driver.
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* @details The HW dependent part of the initialization has to be performed
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* outside, usually in the hardware initialization code.
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*
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* @param[out] sd pointer to a @p FullDuplexDriver structure
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* @param[in] ib pointer to a memory area allocated for the Input Queue buffer
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* @param[in] isize size of the Input Queue buffer
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* @param[in] inotify pointer to a callback function that is invoked when
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* some data is read from the Queue. The value can be
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* @p NULL.
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* @param[in] ob pointer to a memory area allocated for the Output Queue buffer
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* @param[in] osize size of the Output Queue buffer
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* @param[in] onotify pointer to a callback function that is invoked when
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* some data is written in the Queue. The value can be
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* @p NULL.
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*/
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void chFDDInit(FullDuplexDriver *sd,
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uint8_t *ib, size_t isize, qnotify_t inotify,
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uint8_t *ob, size_t osize, qnotify_t onotify) {
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chDbgCheck((sd != NULL) && (ib != NULL) && (ob != NULL) &&
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(isize > 0) && (osize > 0), "chFDDInit");
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sd->vmt = &vmt;
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chEvtInit(&sd->d1.ievent);
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chEvtInit(&sd->d1.oevent);
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chEvtInit(&sd->d2.sevent);
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sd->d2.flags = SD_NO_ERROR;
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chIQInit(&sd->d2.iqueue, ib, isize, inotify);
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chOQInit(&sd->d2.oqueue, ob, osize, onotify);
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}
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/**
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* @brief Handles incoming data.
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* @details This function must be called from the input interrupt service
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* routine in order to enqueue incoming data and generate the
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* related events.
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* @param[in] sd pointer to a @p FullDuplexDriver structure
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* @param[in] b the byte to be written in the driver's Input Queue
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*/
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void chFDDIncomingDataI(FullDuplexDriver *sd, uint8_t b) {
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if (chIQPutI(&sd->d2.iqueue, b) < Q_OK)
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chFDDAddFlagsI(sd, SD_OVERRUN_ERROR);
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else
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chEvtBroadcastI(&sd->d1.ievent);
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}
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/**
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* @brief Handles outgoing data.
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* @details Must be called from the output interrupt service routine in order
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* to get the next byte to be transmitted.
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*
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* @param[in] sd pointer to a @p FullDuplexDriver structure
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* @return The byte value read from the driver's output queue.
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* @retval Q_EMPTY if the queue is empty (the lower driver usually disables
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* the interrupt source when this happens).
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*/
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msg_t chFDDRequestDataI(FullDuplexDriver *sd) {
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msg_t b = chOQGetI(&sd->d2.oqueue);
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if (b < Q_OK)
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chEvtBroadcastI(&sd->d1.oevent);
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return b;
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}
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/**
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* @brief Handles communication events/errors.
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* @details Must be called from the I/O interrupt service routine in order to
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* notify I/O conditions as errors, signals change etc.
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*
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* @param[in] sd pointer to a @p FullDuplexDriver structure
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* @param[in] mask condition flags to be added to the mask
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*/
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void chFDDAddFlagsI(FullDuplexDriver *sd, dflags_t mask) {
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sd->d2.flags |= mask;
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chEvtBroadcastI(&sd->d2.sevent);
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}
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/**
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* @brief Returns and clears the errors mask associated to the driver.
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*
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* @param[in] sd pointer to a @p FullDuplexDriver structure
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* @return The condition flags modified since last time this function was
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* invoked.
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*/
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dflags_t chFDDGetAndClearFlags(FullDuplexDriver *sd) {
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dflags_t mask;
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mask = sd->d2.flags;
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sd->d2.flags = SD_NO_ERROR;
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return mask;
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}
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#endif /* CH_USE_SERIAL_FULLDUPLEX */
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/** @} */
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@ -233,16 +233,6 @@
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#define CH_USE_QUEUES TRUE
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#endif
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/**
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* If specified then the full duplex serial driver APIs are included in the
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* kernel.
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* @note The default is @p TRUE.
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* @note Requires @p CH_USE_QUEUES and @p CH_USE_EVENTS.
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*/
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#if !defined(CH_USE_SERIAL_FULLDUPLEX) || defined(__DOXYGEN__)
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#define CH_USE_SERIAL_FULLDUPLEX TRUE
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#endif
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/**
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* If specified then the memory heap allocator APIs are included in the kernel.
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* @note The default is @p TRUE.
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