diff options
Diffstat (limited to 'os/hal/platforms/MSP430/serial_lld.c')
| -rw-r--r-- | os/hal/platforms/MSP430/serial_lld.c | 292 |
1 files changed, 0 insertions, 292 deletions
diff --git a/os/hal/platforms/MSP430/serial_lld.c b/os/hal/platforms/MSP430/serial_lld.c deleted file mode 100644 index 4130432cd..000000000 --- a/os/hal/platforms/MSP430/serial_lld.c +++ /dev/null @@ -1,292 +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 MSP430/serial_lld.c
- * @brief MSP430 low level serial driver code
- * @addtogroup MSP430_SERIAL
- * @{
- */
-
-#include <ch.h>
-#include <serial.h>
-
-#include <signal.h>
-
-#include "board.h"
-
-#if USE_MSP430_USART0 || defined(__DOXYGEN__)
-/** @brief USART0 serial driver identifier.*/
-SerialDriver SD1;
-#endif
-#if USE_MSP430_USART1 || defined(__DOXYGEN__)
-/** @brief USART1 serial driver identifier.*/
-SerialDriver SD2;
-#endif
-
-/** @brief Driver default configuration.*/
-static const SerialDriverConfig default_config = {
- UBR(DEFAULT_USART_BITRATE),
- 0,
- CHAR
-};
-
-/*===========================================================================*/
-/* Low Level Driver local functions. */
-/*===========================================================================*/
-
-static void set_error(uint8_t urctl, SerialDriver *sdp) {
- sdflags_t sts = 0;
-
- if (urctl & OE)
- sts |= SD_OVERRUN_ERROR;
- if (urctl & PE)
- sts |= SD_PARITY_ERROR;
- if (urctl & FE)
- sts |= SD_FRAMING_ERROR;
- if (urctl & BRK)
- sts |= SD_BREAK_DETECTED;
- chSysLockFromIsr();
- sdAddFlagsI(sdp, sts);
- chSysUnlockFromIsr();
-}
-
-#if USE_MSP430_USART0 || defined(__DOXYGEN__)
-static void notify1(void) {
-
- if (!(U0IE & UTXIE0)) {
- chSysLockFromIsr();
- U0TXBUF = (uint8_t)sdRequestDataI(&SD1);
- chSysUnlockFromIsr();
- U0IE |= UTXIE0;
- }
-}
-
-/**
- * @brief USART0 initialization.
- * @param[in] config the architecture-dependent serial driver configuration
- */
-static void usart0_init(const SerialDriverConfig *config) {
-
- U0CTL = SWRST; /* Resets the USART, it should already be.*/
- /* USART init */
- U0TCTL = SSEL0 | SSEL1; /* SMCLK as clock source.*/
- U0MCTL = config->mod; /* Modulator.*/
- U0BR1 = (uint8_t)(config->div >> 8); /* Divider high.*/
- U0BR0 = (uint8_t)(config->div >> 0); /* Divider low.*/
- /* Clear USART status.*/
- (void)U0RXBUF;
- U0RCTL = 0;
- /* USART enable.*/
- U0ME |= UTXE0 + URXE0; /* Enables the USART.*/
- U0CTL = config->ctl & ~SWRST; /* Various settings, clears reset state.*/
- U0IE |= URXIE0; /* Enables RX interrupt.*/
-}
-
-/**
- * @brief USART0 de-initialization.
- */
-static void usart0_deinit(void) {
-
- U0IE &= ~URXIE0;
- U0CTL = SWRST;
-}
-#endif /* USE_MSP430_USART0 */
-
-#if USE_MSP430_USART1 || defined(__DOXYGEN__)
-static void notify2(void) {
-
- if (!(U1IE & UTXIE1)) {
- U1TXBUF = (uint8_t)sdRequestDataI(&SD2);
- U1IE |= UTXIE1;
- }
-}
-
-/**
- * @brief USART1 initialization.
- * @param[in] config the architecture-dependent serial driver configuration
- */
-static void usart1_init(const SerialDriverConfig *config) {
-
- U1CTL = SWRST; /* Resets the USART, it should already be.*/
- /* USART init.*/
- U1TCTL = SSEL0 | SSEL1; /* SMCLK as clock source.*/
- U1MCTL = config->mod; /* Modulator.*/
- U1BR1 = (uint8_t)(config->div >> 8); /* Divider high.*/
- U1BR0 = (uint8_t)(config->div >> 0); /* Divider low.*/
- /* Clear USART status.*/
- (void)U0RXBUF;
- U1RCTL = 0;
- /* USART enable.*/
- U1ME |= UTXE0 + URXE0; /* Enables the USART.*/
- U1CTL = config->ctl & ~SWRST; /* Various settings, clears reset state.*/
- U1IE |= URXIE0; /* Enables RX interrupt.*/
-}
-
-/**
- * @brief USART1 de-initialization.
- */
-static void usart1_deinit(void) {
-
- U1IE &= ~URXIE0;
- U1CTL = SWRST;
-}
-#endif /* USE_MSP430_USART1 */
-
-/*===========================================================================*/
-/* Low Level Driver interrupt handlers. */
-/*===========================================================================*/
-
-#if USE_MSP430_USART0 || defined(__DOXYGEN__)
-CH_IRQ_HANDLER(USART0TX_VECTOR) {
- msg_t b;
-
- CH_IRQ_PROLOGUE();
-
- chSysLockFromIsr();
- b = sdRequestDataI(&SD1);
- chSysUnlockFromIsr();
- if (b < Q_OK)
- U0IE &= ~UTXIE0;
- else
- U0TXBUF = b;
-
- CH_IRQ_EPILOGUE();
-}
-
-CH_IRQ_HANDLER(USART0RX_VECTOR) {
- uint8_t urctl;
-
- CH_IRQ_PROLOGUE();
-
- if ((urctl = U0RCTL) & RXERR)
- set_error(urctl, &SD1);
- chSysLockFromIsr();
- sdIncomingDataI(&SD1, U0RXBUF);
- chSysUnlockFromIsr();
-
- CH_IRQ_EPILOGUE();
-}
-#endif /* USE_MSP430_USART0 */
-
-#if USE_MSP430_USART1 || defined(__DOXYGEN__)
-CH_IRQ_HANDLER(USART1TX_VECTOR) {
- msg_t b;
-
- CH_IRQ_PROLOGUE();
-
- chSysLockFromIsr();
- b = sdRequestDataI(&SD2);
- chSysUnlockFromIsr();
- if (b < Q_OK)
- U1IE &= ~UTXIE1;
- else
- U1TXBUF = b;
-
- CH_IRQ_EPILOGUE();
-}
-
-CH_IRQ_HANDLER(USART1RX_VECTOR) {
- uint8_t urctl;
-
- CH_IRQ_PROLOGUE();
-
- if ((urctl = U1RCTL) & RXERR)
- set_error(urctl, &SD2);
- chSysLockFromIsr();
- sdIncomingDataI(&SD2, U1RXBUF);
- chSysUnlockFromIsr();
-
- CH_IRQ_EPILOGUE();
-}
-#endif /* USE_MSP430_USART1 */
-
-/*===========================================================================*/
-/* Low Level Driver exported functions. */
-/*===========================================================================*/
-
-/**
- * Low level serial driver initialization. - */
-void sd_lld_init(void) {
-
-#if USE_MSP430_USART0
- sdObjectInit(&SD1, NULL, notify1);
- /* I/O pins for USART0.*/
- P3SEL |= BV(4) + BV(5);
-#endif
-
-#if USE_MSP430_USART1
- sdObjectInit(&SD2, NULL, notify2);
- /* I/O pins for USART1.*/
- P3SEL |= BV(6) + BV(7);
-#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_MSP430_USART0
- if (&SD1 == sdp) {
- usart0_init(config);
- return;
- }
-#endif
-#if USE_MSP430_USART1
- if (&SD2 == sdp) {
- usart1_init(config);
- return;
- }
-#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_MSP430_USART0
- if (&SD1 == sdp) {
- usart0_deinit();
- return;
- }
-#endif
-#if USE_MSP430_USART1
- if (&SD2 == sdp) {
- usart1_deinit();
- return;
- }
-#endif
-}
-
-/** @} */
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