diff options
Diffstat (limited to 'ports/MSP430/msp430_serial.c')
| -rw-r--r-- | ports/MSP430/msp430_serial.c | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/ports/MSP430/msp430_serial.c b/ports/MSP430/msp430_serial.c deleted file mode 100644 index 69351b19d..000000000 --- a/ports/MSP430/msp430_serial.c +++ /dev/null @@ -1,216 +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 ports/MSP430/msp430_serial.c
- * @brief MSP430 Serial driver code.
- * @addtogroup MSP430_SERIAL
- * @{
- */
-
-#include <ch.h>
-#include <signal.h>
-
-#include "board.h"
-#include "msp430_serial.h"
-
-static void SetError(uint8_t urctl, FullDuplexDriver *com) {
- dflags_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();
- chFDDAddFlagsI(com, sts);
- chSysUnlockFromIsr();
-}
-
-#if USE_MSP430_USART0 || defined(__DOXYGEN__)
-
-/** @brief USART0 serial driver identifier.*/
-FullDuplexDriver COM1;
-
-static uint8_t ib1[SERIAL_BUFFERS_SIZE];
-static uint8_t ob1[SERIAL_BUFFERS_SIZE];
-
-CH_IRQ_HANDLER(USART0TX_VECTOR) {
- msg_t b;
-
- CH_IRQ_PROLOGUE();
-
- chSysLockFromIsr();
- b = chFDDRequestDataI(&COM1);
- 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)
- SetError(urctl, &COM1);
- chSysLockFromIsr();
- chFDDIncomingDataI(&COM1, U0RXBUF);
- chSysUnlockFromIsr();
-
- CH_IRQ_EPILOGUE();
-}
-
-static void OutNotify1(void) {
-
- if (!(U0IE & UTXIE0)) {
- chSysLockFromIsr();
- U0TXBUF = (uint8_t)chFDDRequestDataI(&COM1);
- chSysUnlockFromIsr();
- U0IE |= UTXIE0;
- }
-}
-
-/**
- * @brief USART0 setup.
- * @details This function must be invoked with interrupts disabled.
- * @param div The divider value as calculated by the @p UBR() macro.
- * @param mod The value for the @p U0MCTL register.
- * @param ctl The value for the @p U0CTL register.
- * @note Does not reset the I/O queues.
- */
-void usart0_setup(uint16_t div, uint8_t mod, uint8_t ctl) {
-
- U0CTL = SWRST; /* Resets the USART, it should already be */
- /* USART init */
- U0TCTL = SSEL0 | SSEL1; /* SMCLK as clock source */
- U0MCTL = mod; /* Modulator */
- U0BR1 = (uint8_t)(div >> 8); /* Divider high */
- U0BR0 = (uint8_t)(div >> 0); /* Divider low */
- /* Clear USART status */
- (void)U0RXBUF;
- U0RCTL = 0;
- /* USART enable */
- P3SEL |= BV(4) + BV(5); /* I/O pins for USART 0 */
- U0ME |= UTXE0 + URXE0; /* Enables the USART */
- U0CTL = ctl & ~SWRST; /* Various settings, clears reset state */
- U0IE |= URXIE0; /* Enables RX interrupt */
-}
-#endif /* USE_MSP430_USART0 */
-
-#if USE_MSP430_USART1 || defined(__DOXYGEN__)
-
-/** @brief USART1 serial driver identifier.*/
-FullDuplexDriver COM2;
-
-static uint8_t ib2[SERIAL_BUFFERS_SIZE];
-static uint8_t ob2[SERIAL_BUFFERS_SIZE];
-
-CH_IRQ_HANDLER(USART1TX_VECTOR) {
- msg_t b;
-
- CH_IRQ_PROLOGUE();
-
- chSysLockFromIsr();
- b = chFDDRequestDataI(&COM2);
- 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)
- SetError(urctl, &COM2);
- chSysLockFromIsr();
- chFDDIncomingDataI(&COM2, U1RXBUF);
- chSysUnlockFromIsr();
-
- CH_IRQ_EPILOGUE();
-}
-
-static void OutNotify2(void) {
-
- if (!(U1IE & UTXIE1)) {
- U1TXBUF = (uint8_t)chFDDRequestDataI(&COM2);
- U1IE |= UTXIE1;
- }
-}
-
-/**
- * @brief USART1 setup.
- * @details This function must be invoked with interrupts disabled.
- * @param[in] div the divider value as calculated by the @p UBR() macro
- * @param[in] mod the value for the @p U1MCTL register
- * @param[in] ctl the value for the @p U1CTL register.
- * @note Must be invoked with interrupts disabled.
- * @note Does not reset the I/O queues.
- */
-void usart1_setup(uint16_t div, uint8_t mod, uint8_t ctl) {
-
- U1CTL = SWRST; /* Resets the USART, it should already be */
- /* USART init */
- U1TCTL = SSEL0 | SSEL1; /* SMCLK as clock source */
- U1MCTL = mod; /* Modulator */
- U1BR1 = (uint8_t)(div >> 8); /* Divider high */
- U1BR0 = (uint8_t)(div >> 0); /* Divider low */
- /* Clear USART status */
- (void)U0RXBUF;
- U1RCTL = 0;
- /* USART enable */
- P3SEL |= BV(6) + BV(7); /* I/O pins for USART 1 */
- U1ME |= UTXE0 + URXE0; /* Enables the USART */
- U1CTL = ctl & ~SWRST; /* Various settings, clears reset state */
- U1IE |= URXIE0; /* Enables RX interrupt */
-}
-#endif
-
-/**
- * @brief Serial driver initialization.
- * @note The serial ports are initialized at @p 38400-8-N-1 by default. - */
-void serial_init(void) {
-
- /* I/O queues setup.*/
-#if USE_MSP430_USART0
- chFDDInit(&COM1, ib1, sizeof ib1, NULL, ob1, sizeof ob1, OutNotify1);
- usart0_setup(UBR(DEFAULT_USART_BITRATE), 0, CHAR);
-#endif
-
-#if USE_MSP430_USART1
- chFDDInit(&COM2, ib2, sizeof ib2, NULL, ob2, sizeof ob2, OutNotify2);
- usart1_setup(UBR(DEFAULT_USART_BITRATE), 0, CHAR);
-#endif
-}
-
-/** @} */
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