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author | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2009-11-29 08:48:27 +0000 |
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committer | gdisirio <gdisirio@35acf78f-673a-0410-8e92-d51de3d6d3f4> | 2009-11-29 08:48:27 +0000 |
commit | 87417b01023059aa833f376d9bd7aea5174a5f1b (patch) | |
tree | f9136baa6e46c8f51621463010d6488383fb388d /os/io/platforms/AVR/serial_lld.c | |
parent | 19bcadbd6cb2000c06bc7a5f019178c1b1ed701a (diff) | |
download | ChibiOS-87417b01023059aa833f376d9bd7aea5174a5f1b.tar.gz ChibiOS-87417b01023059aa833f376d9bd7aea5174a5f1b.tar.bz2 ChibiOS-87417b01023059aa833f376d9bd7aea5174a5f1b.zip |
git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@1350 35acf78f-673a-0410-8e92-d51de3d6d3f4
Diffstat (limited to 'os/io/platforms/AVR/serial_lld.c')
-rw-r--r-- | os/io/platforms/AVR/serial_lld.c | 256 |
1 files changed, 0 insertions, 256 deletions
diff --git a/os/io/platforms/AVR/serial_lld.c b/os/io/platforms/AVR/serial_lld.c deleted file mode 100644 index 0acf15700..000000000 --- a/os/io/platforms/AVR/serial_lld.c +++ /dev/null @@ -1,256 +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/serial_lld.c
- * @brief AVR low level serial driver code
- * @addtogroup AVR_SERIAL
- * @{
- */
-
-#include <ch.h>
-#include <serial.h>
-
-#if USE_AVR_USART0 || defined(__DOXYGEN__)
-/**
- * @brief USART0 serial driver identifier.
- * @note The name does not follow the convention used in the other ports
- * (COMn) because a name conflict with the AVR headers.
- */
-SerialDriver SD1;
-#endif
-#if USE_AVR_USART1 || defined(__DOXYGEN__)
-/**
- * @brief USART1 serial driver identifier.
- * @note The name does not follow the convention used in the other ports
- * (COMn) because a name conflict with the AVR headers.
- */
-SerialDriver SD2;
-#endif
-
-/** @brief Driver default configuration.*/
-static const SerialDriverConfig default_config = {
- UBRR(DEFAULT_USART_BITRATE),
- (1 << UCSZ1) | (1 << UCSZ0)
-};
-
-/*===========================================================================*/
-/* Low Level Driver local functions. */
-/*===========================================================================*/
-
-static void set_error(uint8_t sra, SerialDriver *sdp) {
- sdflags_t sts = 0;
-
- if (sra & (1 << DOR))
- sts |= SD_OVERRUN_ERROR;
- if (sra & (1 << UPE))
- sts |= SD_PARITY_ERROR;
- if (sra & (1 << FE))
- sts |= SD_FRAMING_ERROR;
- chSysLockFromIsr();
- sdAddFlagsI(sdp, sts);
- chSysUnlockFromIsr();
-}
-
-#if USE_AVR_USART0 || defined(__DOXYGEN__)
-static void notify1(void) {
-
- UCSR0B |= (1 << UDRIE);
-}
-
-/**
- * @brief USART0 initialization.
- * @param[in] config the architecture-dependent serial driver configuration
- */
-static void usart0_init(const SerialDriverConfig *config) {
-
- UBRR0L = config->brr;
- UBRR0H = config->brr >> 8;
- UCSR0A = 0;
- UCSR0B = (1 << RXEN) | (1 << TXEN) | (1 << RXCIE);
- UCSR0C = config->csrc;
-}
-
-/**
- * @brief USART0 de-initialization.
- */
-static void usart0_deinit(void) {
-
- UCSR0A = 0;
- UCSR0B = 0;
- UCSR0C = 0;
-}
-#endif
-
-#if USE_AVR_USART1 || defined(__DOXYGEN__)
-static void notify2(void) {
-
- UCSR1B |= (1 << UDRIE);
-}
-
-/**
- * @brief USART1 initialization.
- * @param[in] config the architecture-dependent serial driver configuration
- */
-static void usart1_init(const SerialDriverConfig *config) {
-
- UBRR1L = config->brr;
- UBRR1H = config->brr >> 8;
- UCSR1A = 0;
- UCSR1B = (1 << RXEN) | (1 << TXEN) | (1 << RXCIE);
- UCSR1C = config->csrc;
-}
-
-/**
- * @brief USART1 de-initialization.
- */
-static void usart1_deinit(void) {
-
- UCSR1A = 0;
- UCSR1B = 0;
- UCSR1C = 0;
-}
-#endif
-
-/*===========================================================================*/
-/* Low Level Driver interrupt handlers. */
-/*===========================================================================*/
-
-#if USE_AVR_USART0 || defined(__DOXYGEN__)
-CH_IRQ_HANDLER(USART0_RX_vect) {
- uint8_t sra;
-
- CH_IRQ_PROLOGUE();
-
- sra = UCSR0A;
- if (sra & ((1 << DOR) | (1 << UPE) | (1 << FE)))
- set_error(sra, &SD1);
- chSysLockFromIsr();
- sdIncomingDataI(&SD1, UDR0);
- chSysUnlockFromIsr();
-
- CH_IRQ_EPILOGUE();
-}
-
-CH_IRQ_HANDLER(USART0_UDRE_vect) {
- msg_t b;
-
- CH_IRQ_PROLOGUE();
-
- chSysLockFromIsr();
- b = sdRequestDataI(&SER1);
- chSysUnlockFromIsr();
- if (b < Q_OK)
- UCSR0B &= ~(1 << UDRIE);
- else
- UDR0 = b;
-
- CH_IRQ_EPILOGUE();
-}
-#endif /* USE_AVR_USART0 */
-
-#if USE_AVR_USART1 || defined(__DOXYGEN__)
-CH_IRQ_HANDLER(USART1_RX_vect) {
- uint8_t sra;
-
- CH_IRQ_PROLOGUE();
-
- sra = UCSR1A;
- if (sra & ((1 << DOR) | (1 << UPE) | (1 << FE)))
- set_error(sra, &SD2);
- chSysLockFromIsr();
- sdIncomingDataI(&SD2, UDR1);
- chSysUnlockFromIsr();
-
- CH_IRQ_EPILOGUE();
-}
-
-CH_IRQ_HANDLER(USART1_UDRE_vect) {
- msg_t b;
-
- CH_IRQ_PROLOGUE();
-
- chSysLockFromIsr();
- b = sdRequestDataI(&SD2);
- chSysUnlockFromIsr();
- if (b < Q_OK)
- UCSR1B &= ~(1 << UDRIE);
- else
- UDR1 = b;
-
- CH_IRQ_EPILOGUE();
-}
-#endif /* USE_AVR_USART1 */
-
-/*===========================================================================*/
-/* Low Level Driver exported functions. */
-/*===========================================================================*/
-
-/**
- * Low level serial driver initialization. - */
-void sd_lld_init(void) {
-
-#if USE_AVR_USART0
- sdObjectInit(&SD1, NULL, notify1);
-#endif
-#if USE_AVR_USART1
- sdObjectInit(&SD2, NULL, notify2);
-#endif
-}
-
-/**
- * @brief Low level serial driver configuration and (re)start.
- *
- * @param[in] sdp pointer to a @p SerialDriver object
- * @param[in] config the architecture-dependent serial driver configuration.
- * If this parameter is set to @p NULL then a default
- * configuration is used.
- */
-void sd_lld_start(SerialDriver *sdp, const SerialDriverConfig *config) {
-
- if (config == NULL)
- config = &default_config;
-
-#if USE_AVR_USART0
- usart0_init(config);
-#endif
-#if USE_AVR_USART1
- usart1_init(config);
-#endif
-}
-
-/**
- * @brief Low level serial driver stop.
- * @details De-initializes the USART, stops the associated clock, resets the
- * interrupt vector.
- *
- * @param[in] sdp pointer to a @p SerialDriver object
- */
-void sd_lld_stop(SerialDriver *sdp) {
-
-#if USE_AVR_USART0
- usart0_deinit();
-#endif
-#if USE_AVR_USART1
- usart1_deinit();
-#endif
-}
-
-/** @} */
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