git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1104 35acf78f-673a-0410-8e92-d51de3d6d3f4
gdisirio
parent
d766e2622e
commit
f5d6a078c7
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@ -53,7 +53,7 @@ endif
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PROJECT = ch
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# Define linker script file here
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LDSCRIPT= ch.ld
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LDSCRIPT = ch.ld
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# Imported source files
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include ../../os/ports/GCC/ARMCM3/port.mk
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@ -116,7 +116,7 @@ INCDIR = $(PORTINC) $(KERNINC) $(TESTINC) \
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MCU = cortex-m3
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TRGT = arm-elf-
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TRGT = arm-none-eabi-
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CC = $(TRGT)gcc
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CPPC = $(TRGT)g++
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# Enable loading with g++ only if you need C++ runtime support.
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@ -0,0 +1,256 @@
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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 templates/serial_lld.c
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* @brief Serial Driver subsystem low level driver source template
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* @addtogroup SERIAL_LLD
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* @{
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*/
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#include <ch.h>
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#include <serial.h>
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#if USE_AVR_USART0 || defined(__DOXYGEN__)
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/**
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* @brief USART0 serial driver identifier.
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* @note The name does not follow the convention used in the other ports
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* (COMn) because a name conflict with the AVR headers.
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*/
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SerialDriver SD1;
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#endif
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#if USE_AVR_USART1 || defined(__DOXYGEN__)
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/**
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* @brief USART1 serial driver identifier.
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* @note The name does not follow the convention used in the other ports
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* (COMn) because a name conflict with the AVR headers.
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*/
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SerialDriver SD2;
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#endif
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/** @brief Driver default configuration.*/
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static const SerialDriverConfig default_config = {
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UBRR(DEFAULT_USART_BITRATE),
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(1 << UCSZ1) | (1 << UCSZ0)
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};
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/*===========================================================================*/
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/* Low Level Driver local functions. */
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/*===========================================================================*/
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static void set_error(uint8_t sra, SerialDriver *sdp) {
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dflags_t sts = 0;
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if (sra & (1 << DOR))
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sts |= SD_OVERRUN_ERROR;
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if (sra & (1 << UPE))
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sts |= SD_PARITY_ERROR;
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if (sra & (1 << FE))
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sts |= SD_FRAMING_ERROR;
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chSysLockFromIsr();
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sdAddFlagsI(sdp, sts);
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chSysUnlockFromIsr();
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}
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#if USE_AVR_USART0 || defined(__DOXYGEN__)
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static void notify1(void) {
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UCSR0B |= (1 << UDRIE);
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}
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/**
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* @brief USART0 initialization.
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* @param[in] config the architecture-dependent serial driver configuration
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*/
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void usart0_init(SerialDriverConfig *config) {
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UBRR0L = config->brr;
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UBRR0H = config->brr >> 8;
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UCSR0A = 0;
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UCSR0B = (1 << RXEN) | (1 << TXEN) | (1 << RXCIE);
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UCSR0C = config->csrc;
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}
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/**
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* @brief USART0 de-initialization.
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*/
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void usart0_deinit(void) {
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UCSR0A = 0;
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UCSR0B = 0;
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UCSR0C = 0;
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}
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#endif
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#if USE_AVR_USART1 || defined(__DOXYGEN__)
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static void notify2(void) {
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UCSR1B |= (1 << UDRIE);
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}
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/**
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* @brief USART1 initialization.
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* @param[in] config the architecture-dependent serial driver configuration
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*/
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void usart1_init(SerialDriverConfig *config) {
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UBRR1L = config->brr;
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UBRR1H = config->brr >> 8;
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UCSR1A = 0;
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UCSR1B = (1 << RXEN) | (1 << TXEN) | (1 << RXCIE);
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UCSR1C = config->csrc;
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}
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/**
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* @brief USART1 de-initialization.
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*/
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void usart1_deinit(void) {
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UCSR1A = 0;
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UCSR1B = 0;
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UCSR1C = 0;
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}
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#endif
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/*===========================================================================*/
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/* Low Level Driver interrupt handlers. */
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/*===========================================================================*/
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#if USE_AVR_USART0 || defined(__DOXYGEN__)
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CH_IRQ_HANDLER(USART0_RX_vect) {
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uint8_t sra;
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CH_IRQ_PROLOGUE();
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sra = UCSR0A;
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if (sra & ((1 << DOR) | (1 << UPE) | (1 << FE)))
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set_error(sra, &SER1);
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chSysLockFromIsr();
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sdIncomingDataI(&SER1, UDR0);
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chSysUnlockFromIsr();
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CH_IRQ_EPILOGUE();
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}
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CH_IRQ_HANDLER(USART0_UDRE_vect) {
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msg_t b;
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CH_IRQ_PROLOGUE();
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chSysLockFromIsr();
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b = sdRequestDataI(&SER1);
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chSysUnlockFromIsr();
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if (b < Q_OK)
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UCSR0B &= ~(1 << UDRIE);
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else
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UDR0 = b;
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CH_IRQ_EPILOGUE();
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}
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#endif /* USE_AVR_USART0 */
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#if USE_AVR_USART1 || defined(__DOXYGEN__)
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CH_IRQ_HANDLER(USART1_RX_vect) {
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uint8_t sra;
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CH_IRQ_PROLOGUE();
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sra = UCSR1A;
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if (sra & ((1 << DOR) | (1 << UPE) | (1 << FE)))
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set_error(sra, &SER2);
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chSysLockFromIsr();
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sdIncomingDataI(&SER2, UDR1);
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chSysUnlockFromIsr();
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CH_IRQ_EPILOGUE();
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}
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CH_IRQ_HANDLER(USART1_UDRE_vect) {
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msg_t b;
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CH_IRQ_PROLOGUE();
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chSysLockFromIsr();
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b = sdRequestDataI(&SER2);
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chSysUnlockFromIsr();
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if (b < Q_OK)
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UCSR1B &= ~(1 << UDRIE);
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else
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UDR1 = b;
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CH_IRQ_EPILOGUE();
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}
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#endif /* USE_AVR_USART1 */
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/*===========================================================================*/
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/* Low Level Driver exported functions. */
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/*===========================================================================*/
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/**
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* Low level serial driver initialization.
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*/
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void sd_lld_init(void) {
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#if USE_MSP430_USART0
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sdObjectInit(&COM1, NULL, notify1);
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#endif
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#if USE_MSP430_USART1
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sdObjectInit(&COM2, NULL, notify2);
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#endif
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}
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/**
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* @brief Low level serial driver configuration and (re)start.
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*
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* @param[in] sdp pointer to a @p SerialDriver object
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* @param[in] config the architecture-dependent serial driver configuration.
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* If this parameter is set to @p NULL then a default
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* configuration is used.
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*/
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void sd_lld_start(SerialDriver *sdp, const SerialDriverConfig *config) {
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if (config == NULL)
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config = &default_config;
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#if USE_AVR_USART0
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usart0_init(config);
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#endif
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#if USE_AVR_USART1
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usart1_init(config);
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#endif
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}
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/**
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* @brief Low level serial driver stop.
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* @details De-initializes the USART, stops the associated clock, resets the
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* interrupt vector.
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*
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* @param[in] sdp pointer to a @p SerialDriver object
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*/
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void sd_lld_stop(SerialDriver *sdp) {
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#if USE_AVR_USART0
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usart0_deinit();
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#endif
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#if USE_AVR_USART1
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usart1_deinit();
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#endif
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}
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/** @} */
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@ -0,0 +1,165 @@
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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 templates/serial_lld.h
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* @brief Serial Driver subsystem low level driver header template
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* @addtogroup SERIAL_LLD
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* @{
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*/
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#ifndef _SERIAL_LLD_H_
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#define _SERIAL_LLD_H_
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/*===========================================================================*/
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/* Driver pre-compile time settings. */
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/*===========================================================================*/
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/**
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* @brief Serial buffers size.
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* @details Configuration parameter, you can change the depth of the queue
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* buffers depending on the requirements of your application.
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* @note The default is 32 bytes for both the transmission and receive buffers.
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*/
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#if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
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#define SERIAL_BUFFERS_SIZE 32
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#endif
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/**
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* @brief Default bit rate.
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* @details Configuration parameter, at startup the UARTs are configured at
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* this speed.
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* @note It is possible to use @p SetUART() in order to change the working
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* parameters at runtime.
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*/
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#if !defined(DEFAULT_USART_BITRATE) || defined(__DOXYGEN__)
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#define DEFAULT_USART_BITRATE 38400
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#endif
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/**
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* @brief USART0 driver enable switch.
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* @details If set to @p TRUE the support for USART0 is included.
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* @note The default is @p FALSE.
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*/
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#if !defined(USE_AVR_USART0) || defined(__DOXYGEN__)
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#define USE_AVR_USART0 FALSE
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#endif
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/**
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* @brief USART1 driver enable switch.
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* @details If set to @p TRUE the support for USART1 is included.
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* @note The default is @p TRUE.
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*/
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#if !defined(USE_AVR_USART1) || defined(__DOXYGEN__)
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#define USE_AVR_USART1 TRUE
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#endif
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/*===========================================================================*/
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/* Unsupported event flags and custom events. */
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/*===========================================================================*/
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/*===========================================================================*/
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/* Driver data structures and types. */
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/*===========================================================================*/
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/**
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* Serial Driver condition flags type.
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*/
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typedef uint8_t sdflags_t;
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/**
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* @brief @p SerialDriver specific data.
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*/
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struct _serial_driver_data {
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/**
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* Input queue, incoming data can be read from this input queue by
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* using the queues APIs.
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*/
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InputQueue iqueue;
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/**
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* Output queue, outgoing data can be written to this output queue by
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* using the queues APIs.
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*/
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OutputQueue oqueue;
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/**
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* Status Change @p EventSource. This event is generated when one or more
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* condition flags change.
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*/
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EventSource sevent;
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/**
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* I/O driver status flags.
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*/
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sdflags_t flags;
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/**
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* Input circular buffer.
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*/
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uint8_t ib[SERIAL_BUFFERS_SIZE];
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/**
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* Output circular buffer.
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*/
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uint8_t ob[SERIAL_BUFFERS_SIZE];
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};
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/**
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* @brief Macro for baud rate computation.
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* @note Make sure the final baud rate is within tolerance.
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*/
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#define UBRR(b) ((F_CPU / (b << 4)) - 1)
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/**
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* @brief Generic Serial Driver static initializer.
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* @details An instance of this structure must be passed to @p sdStart()
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* in order to configure and start a serial driver operations.
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*
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* @note This structure content is architecture dependent, each driver
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* implementation defines its own version and the custom static
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* initializers.
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*/
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typedef struct {
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uint16_t brr;
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uint8_t csrc;
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} SerialDriverConfig;
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/*===========================================================================*/
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/* External declarations. */
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/*===========================================================================*/
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/** @cond never*/
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#if USE_AVR_USART0
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extern SerialDriver SD1;
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#endif
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#if USE_AVR_USART1
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extern SerialDriver SD2;
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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void sd_lld_init(void);
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void sd_lld_start(SerialDriver *sdp, const SerialDriverConfig *config);
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void sd_lld_stop(SerialDriver *sdp);
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#ifdef __cplusplus
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}
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#endif
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/** @endcond*/
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#endif /* _SERIAL_LLD_H_ */
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/** @} */
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|
@ -1,185 +0,0 @@
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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 AVR/avr_serial.c
|
||||
* @brief AVR Serial driver code.
|
||||
* @addtogroup AVR_SERIAL
|
||||
* @{
|
||||
*/
|
||||
|
||||
#include <ch.h>
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#include "avr_serial.h"
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static void SetError(uint8_t sra, FullDuplexDriver *com) {
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dflags_t sts = 0;
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|
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if (sra & (1 << DOR))
|
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sts |= SD_OVERRUN_ERROR;
|
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if (sra & (1 << UPE))
|
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sts |= SD_PARITY_ERROR;
|
||||
if (sra & (1 << FE))
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sts |= SD_FRAMING_ERROR;
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chSysLockFromIsr();
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chFDDAddFlagsI(com, sts);
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chSysUnlockFromIsr();
|
||||
}
|
||||
|
||||
#if USE_AVR_USART0 || defined(__DOXYGEN__)
|
||||
/** @brief USART0 serial driver identifier.*/
|
||||
FullDuplexDriver SER1;
|
||||
|
||||
static uint8_t ib1[SERIAL_BUFFERS_SIZE];
|
||||
static uint8_t ob1[SERIAL_BUFFERS_SIZE];
|
||||
|
||||
CH_IRQ_HANDLER(USART0_RX_vect) {
|
||||
uint8_t sra;
|
||||
|
||||
CH_IRQ_PROLOGUE();
|
||||
|
||||
sra = UCSR0A;
|
||||
if (sra & ((1 << DOR) | (1 << UPE) | (1 << FE)))
|
||||
SetError(sra, &SER1);
|
||||
chSysLockFromIsr();
|
||||
chFDDIncomingDataI(&SER1, UDR0);
|
||||
chSysUnlockFromIsr();
|
||||
|
||||
CH_IRQ_EPILOGUE();
|
||||
}
|
||||
|
||||
CH_IRQ_HANDLER(USART0_UDRE_vect) {
|
||||
msg_t b;
|
||||
|
||||
CH_IRQ_PROLOGUE();
|
||||
|
||||
chSysLockFromIsr();
|
||||
b = chFDDRequestDataI(&SER1);
|
||||
chSysUnlockFromIsr();
|
||||
if (b < Q_OK)
|
||||
UCSR0B &= ~(1 << UDRIE);
|
||||
else
|
||||
UDR0 = b;
|
||||
|
||||
CH_IRQ_EPILOGUE();
|
||||
}
|
||||
|
||||
static void OutNotify1(void) {
|
||||
|
||||
UCSR0B |= (1 << UDRIE);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief USART0 setup.
|
||||
* @details This function must be invoked with interrupts disabled.
|
||||
* @param[in] brr the divider value as calculated by the @p UBRR() macro
|
||||
* @param[in] csrc the value for the @p UCSR0C register
|
||||
* @note Must be invoked with interrupts disabled.
|
||||
* @note Does not reset the I/O queues.
|
||||
*/
|
||||
void usart0_setup(uint16_t brr, uint8_t csrc) {
|
||||
|
||||
UBRR0L = brr;
|
||||
UBRR0H = brr >> 8;
|
||||
UCSR0A = 0;
|
||||
UCSR0B = (1 << RXEN) | (1 << TXEN) | (1 << RXCIE);
|
||||
UCSR0C = csrc;
|
||||
}
|
||||
#endif /* USE_AVR_USART0 */
|
||||
|
||||
#if USE_AVR_USART1 || defined(__DOXYGEN__)
|
||||
/** @brief USART1 serial driver identifier.*/
|
||||
FullDuplexDriver SER2;
|
||||
|
||||
static uint8_t ib2[SERIAL_BUFFERS_SIZE];
|
||||
static uint8_t ob2[SERIAL_BUFFERS_SIZE];
|
||||
|
||||
CH_IRQ_HANDLER(USART1_RX_vect) {
|
||||
uint8_t sra;
|
||||
|
||||
CH_IRQ_PROLOGUE();
|
||||
|
||||
sra = UCSR1A;
|
||||
if (sra & ((1 << DOR) | (1 << UPE) | (1 << FE)))
|
||||
SetError(sra, &SER2);
|
||||
chSysLockFromIsr();
|
||||
chFDDIncomingDataI(&SER2, UDR1);
|
||||
chSysUnlockFromIsr();
|
||||
|
||||
CH_IRQ_EPILOGUE();
|
||||
}
|
||||
|
||||
CH_IRQ_HANDLER(USART1_UDRE_vect) {
|
||||
msg_t b;
|
||||
|
||||
CH_IRQ_PROLOGUE();
|
||||
|
||||
chSysLockFromIsr();
|
||||
b = chFDDRequestDataI(&SER2);
|
||||
chSysUnlockFromIsr();
|
||||
if (b < Q_OK)
|
||||
UCSR1B &= ~(1 << UDRIE);
|
||||
else
|
||||
UDR1 = b;
|
||||
|
||||
CH_IRQ_EPILOGUE();
|
||||
}
|
||||
|
||||
static void OutNotify2(void) {
|
||||
|
||||
UCSR1B |= (1 << UDRIE);
|
||||
}
|
||||
|
||||
/**
|
||||
* @brief USART1 setup.
|
||||
* @details This function must be invoked with interrupts disabled.
|
||||
* @param[in] brr the divider value as calculated by the @p UBRR() macro
|
||||
* @param[in] csrc the value for the @p UCSR1C register
|
||||
* @note Must be invoked with interrupts disabled.
|
||||
* @note Does not reset the I/O queues.
|
||||
*/
|
||||
void usart1_setup(uint16_t brr, uint8_t csrc) {
|
||||
|
||||
UBRR1L = brr;
|
||||
UBRR1H = brr >> 8;
|
||||
UCSR1A = 0;
|
||||
UCSR1B = (1 << RXEN) | (1 << TXEN) | (1 << RXCIE);
|
||||
UCSR1C = csrc;
|
||||
}
|
||||
#endif /* USE_AVR_USART1 */
|
||||
|
||||
/**
|
||||
* @brief Serial driver initialization.
|
||||
* @note The serial ports are initialized at @p 38400-8-N-1 by default.
|
||||
*/
|
||||
void serial_init(void) {
|
||||
|
||||
#if USE_AVR_USART0
|
||||
/* I/O queues setup.*/
|
||||
chFDDInit(&SER1, ib1, sizeof ib1, NULL, ob1, sizeof ob1, OutNotify1);
|
||||
usart0_setup(UBRR(DEFAULT_USART_BITRATE), (1 << UCSZ1) | (1 << UCSZ0));
|
||||
#endif
|
||||
|
||||
#if USE_AVR_USART1
|
||||
chFDDInit(&SER2, ib2, sizeof ib2, NULL, ob2, sizeof ob2, OutNotify2);
|
||||
usart1_setup(UBRR(DEFAULT_USART_BITRATE), (1 << UCSZ1) | (1 << UCSZ0));
|
||||
#endif
|
||||
}
|
||||
|
||||
/** @} */
|
||||
|
|
@ -1,92 +0,0 @@
|
|||
/*
|
||||
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 AVR/avr_serial.h
|
||||
* @brief AVR Serial driver macros and structures.
|
||||
* @addtogroup AVR_SERIAL
|
||||
* @{
|
||||
*/
|
||||
|
||||
#ifndef _AVR_SERIAL_H_
|
||||
#define _AVR_SERIAL_H_
|
||||
|
||||
/**
|
||||
* @brief Serial buffers size.
|
||||
* @details Configuration parameter, you can change the depth of the queue
|
||||
* buffers depending on the requirements of your application.
|
||||
* @note The default is 32 bytes for both the transmission and receive buffers.
|
||||
*/
|
||||
#if !defined(SERIAL_BUFFERS_SIZE) || defined(__DOXYGEN__)
|
||||
#define SERIAL_BUFFERS_SIZE 32
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief Default bit rate.
|
||||
* @details Configuration parameter, at startup the UARTs are configured at
|
||||
* this speed.
|
||||
* @note It is possible to use @p SetUART() in order to change the working
|
||||
* parameters at runtime.
|
||||
*/
|
||||
#if !defined(DEFAULT_USART_BITRATE) || defined(__DOXYGEN__)
|
||||
#define DEFAULT_USART_BITRATE 38400
|
||||
#endif
|
||||
|
||||
|
||||
/**
|
||||
* @brief USART0 driver enable switch.
|
||||
* @details If set to @p TRUE the support for USART0 is included.
|
||||
* @note The default is @p FALSE.
|
||||
*/
|
||||
#if !defined(USE_AVR_USART0) || defined(__DOXYGEN__)
|
||||
#define USE_AVR_USART0 FALSE
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief USART1 driver enable switch.
|
||||
* @details If set to @p TRUE the support for USART1 is included.
|
||||
* @note The default is @p TRUE.
|
||||
*/
|
||||
#if !defined(USE_AVR_USART1) || defined(__DOXYGEN__)
|
||||
#define USE_AVR_USART1 TRUE
|
||||
#endif
|
||||
|
||||
/**
|
||||
* @brief Macro for baud rate computation.
|
||||
* @note Make sure the final baud rate is within tolerance.
|
||||
*/
|
||||
#define UBRR(b) ((F_CPU / (b << 4)) - 1)
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif
|
||||
void serial_init(void);
|
||||
void usart0_setup(uint16_t brr, uint8_t csrc);
|
||||
void usart1_setup(uint16_t brr, uint8_t csrc);
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif
|
||||
|
||||
/** @cond never*/
|
||||
extern FullDuplexDriver SER1, SER2;
|
||||
/** @endcond*/
|
||||
|
||||
#endif /* _AVR_SERIAL_H_ */
|
||||
|
||||
/** @} */
|
||||
Loading…
Reference in New Issue