--- /dev/null
+/*
+ * Copyright (c) 2009 Communication Group and Eislab at
+ * Lulea University of Technology
+ *
+ * Contact: Laurynas Riliskis, LTU
+ * Mail: laurynas.riliskis@ltu.se
+ * All rights reserved.
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ * - Neither the name of Communication Group at Lulea University of Technology
+ * nor the names of its contributors may be used to endorse or promote
+ * products derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL STANFORD
+ * UNIVERSITY OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * Copyright (c) 2006 Arch Rock Corporation
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the
+ * distribution.
+ * - Neither the name of the Arch Rock Corporation nor the names of
+ * its contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * ARCH ROCK OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE
+ */
+/**
+ * @author Alec Woo <awoo@archrock.com>
+ * @author Jonathan Hui <jhui@archrock.com>
+ */
+
+/*
+ * Copyright (c) 2004-2005 Crossbow Technology, Inc. All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software and its
+ * documentation for any purpose, without fee, and without written agreement is
+ * hereby granted, provided that the above copyright notice, the following
+ * two paragraphs and the author appear in all copies of this software.
+ *
+ * IN NO EVENT SHALL CROSSBOW TECHNOLOGY OR ANY OF ITS LICENSORS BE LIABLE TO
+ * ANY PARTY FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
+ * DAMAGES ARISING OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN
+ * IF CROSSBOW OR ITS LICENSOR HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH
+ * DAMAGE.
+ *
+ * CROSSBOW TECHNOLOGY AND ITS LICENSORS SPECIFICALLY DISCLAIM ALL WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
+ * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
+ * ON AN "AS IS" BASIS, AND NEITHER CROSSBOW NOR ANY LICENSOR HAS ANY
+ * OBLIGATION TO PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR
+ * MODIFICATIONS.
+ */
+/**
+ * @author Martin Turon <mturon@xbow.com>
+ * @author David Gay
+ */
+
+
+/**
+ * Generic HPL module for a Uart port on the M16c/62p MCU.
+ *
+ * @author Henrik Makitaavola <henrik.makitaavola@gmail.com>
+ */
+
+#include "M16c62pUart.h"
+
+generic module HplM16c62pUartP(uint8_t uartNr,
+ uint16_t tx_addr,
+ uint16_t rx_addr,
+ uint16_t brg_addr,
+ uint16_t mode_addr,
+ uint16_t ctrl0_addr,
+ uint16_t ctrl1_addr,
+ uint16_t txInterrupt_addr,
+ uint16_t rxInterrupt_addr)
+{
+ provides interface AsyncStdControl as UartTxControl;
+ provides interface AsyncStdControl as UartRxControl;
+ provides interface HplM16c62pUart as HplUart;
+
+ uses interface GeneralIO as TxIO;
+ uses interface GeneralIO as RxIO;
+ uses interface HplM16c62pUartInterrupt as Irq;
+ uses interface StopModeControl;
+
+}
+implementation
+{
+#define txBuf (*TCAST(volatile uint8_t* ONE, tx_addr))
+#define rxBuf (*TCAST(volatile uint8_t* ONE, rx_addr))
+#define txInterrupt (*TCAST(volatile uint8_t* ONE, txInterrupt_addr))
+#define rxInterrupt (*TCAST(volatile uint8_t* ONE, rxInterrupt_addr))
+#define brg (*TCAST(volatile uint8_t* ONE, brg_addr))
+#define mode (*TCAST(volatile uint8_t* ONE, mode_addr))
+#define ctrl0 (*TCAST(volatile uint8_t* ONE, ctrl0_addr))
+#define ctrl1 (*TCAST(volatile uint8_t* ONE, ctrl1_addr))
+
+ enum {
+ ON,
+ OFF
+ };
+
+ uint8_t state = OFF;
+ uart_speed_t current_speed = TOS_UART_57600;
+
+ async command void HplUart.on()
+ {
+ // Set 8 bit transfer
+ SET_BIT(mode, 0);
+ SET_BIT(mode, 2);
+
+ //no cts/rts.
+ SET_BIT(ctrl0, 4);
+ atomic switch (current_speed)
+ {
+ case TOS_UART_1200:
+ SET_BIT(ctrl0, 0);
+ CLR_BIT(ctrl0, 1);
+ break;
+ case TOS_UART_9600:
+ case TOS_UART_57600:
+ CLR_BIT(ctrl0, 0);
+ CLR_BIT(ctrl0, 1);
+ break;
+ default:
+ break;
+ }
+ call StopModeControl.allowStopMode(false);
+ atomic state = ON;
+ }
+
+ async command void HplUart.off()
+ {
+ CLR_BIT(mode, 0);
+ CLR_BIT(mode, 2);
+ call StopModeControl.allowStopMode(true);
+ atomic state = OFF;
+ }
+
+
+ async command error_t HplUart.setSpeed(uart_speed_t speed)
+ {
+ atomic if (state != OFF)
+ {
+ return FAIL;
+ }
+
+ switch (speed)
+ {
+ // TODO(henrik) These values are based on a mcu that runs on MAIN_CRYSTAL_SPEED and doesn't
+ // consider if the PLL is on which they should.
+ case TOS_UART_1200:
+ brg = (uint8_t)(((MAIN_CRYSTAL_SPEED * 1000000.0 / (128.0 * 1200.0))+ 0.5) - 1.0);
+ break;
+ case TOS_UART_9600:
+ brg = (uint8_t)(((MAIN_CRYSTAL_SPEED * 1000000.0 / (16.0 * 9600.0))+ 0.5) - 1.0);
+ break;
+ case TOS_UART_57600:
+ brg = (uint8_t)(((MAIN_CRYSTAL_SPEED * 1000000.0 / (16.0 * 57600.0))+ 0.5) - 1.0);
+ break;
+ default:
+ break;
+ }
+ atomic current_speed = speed;
+ return SUCCESS;
+ }
+
+ async command uart_speed_t HplUart.getSpeed()
+ {
+ atomic return current_speed;
+ }
+
+ async command void HplUart.setParity(uart_parity_t parity)
+ {
+ switch (parity)
+ {
+ case TOS_UART_PARITY_NONE:
+ CLR_BIT(mode, 6);
+ break;
+ case TOS_UART_PARITY_EVEN:
+ SET_BIT(mode, 6);
+ SET_BIT(mode, 5);
+ break;
+ case TOS_UART_PARITY_ODD:
+ SET_BIT(mode, 6);
+ CLR_BIT(mode, 5);
+ break;
+ default:
+ break;
+ }
+ }
+
+ async command uart_parity_t HplUart.getParity()
+ {
+ if (READ_BIT(mode, 6) && READ_BIT(mode, 5))
+ {
+ return TOS_UART_PARITY_EVEN;
+ }
+ else if (READ_BIT(mode, 6))
+ {
+ return TOS_UART_PARITY_ODD;
+ }
+ else
+ {
+ return TOS_UART_PARITY_NONE;
+ }
+ }
+
+ async command void HplUart.setStopBits(uart_stop_bits_t stop_bits)
+ {
+ switch (stop_bits)
+ {
+ case TOS_UART_STOP_BITS_1:
+ CLR_BIT(mode, 4);
+ break;
+ case TOS_UART_STOP_BITS_2:
+ SET_BIT(mode, 4);
+ break;
+ default:
+ break;
+ }
+ }
+
+ async command uart_stop_bits_t HplUart.getStopBits()
+ {
+ if (READ_BIT(mode, 4))
+ {
+ return TOS_UART_STOP_BITS_2;
+ }
+ else
+ {
+ return TOS_UART_STOP_BITS_1;
+ }
+ }
+
+
+ async command error_t UartTxControl.start()
+ {
+ call TxIO.makeOutput();
+ SET_BIT(ctrl1, 0);
+ return SUCCESS;
+ }
+
+ async command error_t UartTxControl.stop()
+ {
+ call TxIO.makeInput();
+ CLR_BIT(ctrl1, 0);
+ return SUCCESS;
+ }
+
+ async command error_t UartRxControl.start()
+ {
+ call RxIO.makeInput();
+ SET_BIT(ctrl1, 2);
+ return SUCCESS;
+ }
+
+ async command error_t UartRxControl.stop()
+ {
+ CLR_BIT(ctrl1, 2);
+ return SUCCESS;
+ }
+
+ async command error_t HplUart.enableTxInterrupt()
+ {
+ atomic
+ {
+ clear_interrupt(txInterrupt_addr);
+ SET_BIT(ctrl1, 1);
+ CLR_BIT(UCON.BYTE, uartNr);
+ SET_BIT(txInterrupt, 0);
+ }
+ return SUCCESS;
+ }
+
+ async command error_t HplUart.disableTxInterrupt()
+ {
+ CLR_BIT(txInterrupt, 0);
+ return SUCCESS;
+ }
+
+ async command error_t HplUart.enableRxInterrupt()
+ {
+ atomic
+ {
+ clear_interrupt(rxInterrupt_addr);
+ SET_BIT(rxInterrupt, 0);
+ }
+ return SUCCESS;
+ }
+
+ async command error_t HplUart.disableRxInterrupt()
+ {
+ CLR_BIT(rxInterrupt, 0);
+ return SUCCESS;
+ }
+
+ async command bool HplUart.isTxEmpty()
+ {
+ return READ_BIT(ctrl1, 1);
+ }
+
+ async command bool HplUart.isRxEmpty()
+ {
+ return !READ_BIT(ctrl1, 3);
+ }
+
+ async command uint8_t HplUart.rx()
+ {
+ return rxBuf;
+ }
+
+ async command void HplUart.tx(uint8_t data)
+ {
+ txBuf = data;
+ }
+
+ async event void Irq.rx()
+ {
+ if (!call HplUart.isRxEmpty()) {
+ signal HplUart.rxDone(call HplUart.rx());
+ }
+ }
+
+ async event void Irq.tx()
+ {
+ signal HplUart.txDone();
+ }
+
+ default async event void HplUart.txDone() {}
+ default async event void HplUart.rxDone(uint8_t data) {}
+}
projects / tinyos-2.x.git / blobdiff