265 lines
13 KiB
C
265 lines
13 KiB
C
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/**
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* \file
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* <!--
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* This file is part of BeRTOS.
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*
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* Bertos 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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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*
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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, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* As a special exception, you may use this file as part of a free software
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* library without restriction. Specifically, if other files instantiate
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* templates or use macros or inline functions from this file, or you compile
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* this file and link it with other files to produce an executable, this
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* file does not by itself cause the resulting executable to be covered by
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* the GNU General Public License. This exception does not however
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* invalidate any other reasons why the executable file might be covered by
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* the GNU General Public License.
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*
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* Copyright 2009 Develer S.r.l. (http://www.develer.com/)
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*
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* -->
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*
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*
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* \author Luca Ottaviano <lottaviano@develer.com>
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*
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* AT91SAM7 SSC register definitions.
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* This file is based on NUT/OS implementation. See license below.
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*/
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/*
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* Copyright (C) 2006-2007 by egnite Software GmbH. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holders nor the names of
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY EGNITE SOFTWARE GMBH AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL EGNITE
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* SOFTWARE GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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* THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* For additional information see http://www.ethernut.de/
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*/
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#ifndef AT91_SSC_H
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#define AT91_SSC_H
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#include <io/at91sam7.h>
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/**
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* SSC Control Register
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*/
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/*\{*/
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#define SSC_CR_OFF 0x00000000 ///< Control register offset.
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#define SSC_RXEN 0 ///< Receive enable.
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#define SSC_RXDIS 1 ///< Receive disable.
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#define SSC_TXEN 8 ///< Transmit enable.
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#define SSC_TXDIS 9 ///< Transmit disable.
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#define SSC_SWRST 15 ///< Software reset.
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/*\}*/
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/**
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* SSC Clock Mode Register
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*/
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/*\{*/
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#define SSC_CMR_OFF 0x00000004 ///< Clock mode register offset.
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#define SSC_DIV_MASK 0x00000FFF ///< Clock divider.
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/*\}*/
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/**
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* SSC Receive/Transmit Clock Mode Register
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*/
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/*\{*/
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#define SSC_RCMR_OFF 0x00000010 ///< Receive clock mode register offset.
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#define SSC_TCMR_OFF 0x00000018 ///< Transmit clock mode register offset.
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#define SSC_CKS_MASK 0x00000003 ///< Receive clock selection.
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#define SSC_CKS_DIV 0x00000000 ///< Divided clock.
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#define SSC_CKS_CLK 0x00000001 ///< RK/TK clock signal.
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#define SSC_CKS_PIN 0x00000002 ///< TK/RK pin.
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#define SSC_CKO_MASK 0x0000001C ///< Receive clock output mode selection.
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#define SSC_CKO_NONE 0x00000000 ///< None.
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#define SSC_CKO_CONT 0x00000004 ///< Continous receive clock.
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#define SSC_CKO_TRAN 0x00000008 ///< Receive clock only during data transfers.
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#define SSC_CKI 5 ///< Receive clock inversion.
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#define SSC_CKG_MASK 0x000000C0 ///< Receive clock gating selection.
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#define SSC_CKG_NONE 0x00000000 ///< None, continous clock.
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#define SSC_CKG_FL 0x00000040 ///< Continous receive clock.
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#define SSC_CKG_FH 0x00000080 ///< Receive clock only during data transfers.
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#define SSC_START_MASK 0x00000F00 ///< Receive start selection.
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#define SSC_START_CONT 0x00000000 ///< Receive start as soon as enabled.
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#define SSC_START_TX 0x00000100 ///< Receive start on transmit start.
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#define SSC_START_RX 0x00000100 ///< Receive start on receive start.
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#define SSC_START_LOW_F 0x00000200 ///< Receive start on low level RF.
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#define SSC_START_HIGH_F 0x00000300 ///< Receive start on high level RF.
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#define SSC_START_FALL_F 0x00000400 ///< Receive start on falling edge RF.
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#define SSC_START_RISE_F 0x00000500 ///< Receive start on rising edge RF.
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#define SSC_START_LEVEL_F 0x00000600 ///< Receive start on any RF level change.
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#define SSC_START_EDGE_F 0x00000700 ///< Receive start on any RF edge.
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#define SSC_START_COMP0 0x00000800 ///< Receive on compare 0.
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#define SSC_STOP 12 ///< Receive stop selection.
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#define SSC_STTDLY_MASK 0x00FF0000 ///< Receive start delay.
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#define SSC_STTDLY_SHIFT 16 ///< Least significant bit of receive start delay.
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#define SSC_PERIOD_MASK 0xFF000000 ///< Receive period divider selection.
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#define SSC_PERIOD_SHIFT 24 ///< Least significant bit of receive period divider selection.
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/*\}*/
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/**
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* SSC Receive/Transmit Frame Mode Registers
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*/
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/*\{*/
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#define SSC_RFMR_OFF 0x00000014 ///< Receive frame mode register offset.
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#define SSC_TFMR_OFF 0x0000001C ///< Transmit frame mode register offset.
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#define SSC_DATLEN_MASK 0x0000001F ///< Data length.
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#define SSC_LOOP 5 ///< Receiver loop mode.
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#define SSC_DATDEF 5 ///< Transmit default value.
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#define SSC_MSBF 7 ///< Most significant bit first.
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#define SSC_DATNB_MASK 0x00000F00 ///< Data number per frame.
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#define SSC_DATNB_SHIFT 8 ///< Least significant bit of data number per frame.
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#define SSC_FSLEN_MASK 0x000F0000 ///< Receive frame sync. length.
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#define SSC_FSLEN_SHIFT 16 ///< Least significant bit of receive frame sync. length.
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#define SSC_FSOS 0x00700000 ///< Receive frame sync. output selection.
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#define SSC_FSOS_NONE 0x00000000 ///< No frame sync. Line set to input.
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#define SSC_FSOS_NEGATIVE 0x00100000 ///< Negative pulse.
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#define SSC_FSOS_POSITIVE 0x00200000 ///< Positive pulse.
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#define SSC_FSOS_LOW 0x00300000 ///< Low during transfer.
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#define SSC_FSOS_HIGH 0x00400000 ///< High during transfer.
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#define SSC_FSOS_TOGGLE 0x00500000 ///< Toggling at each start.
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#define SSC_FSDEN 23 ///< Frame sync. data enable.
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#define SSC_FSEDGE 24 ///< Frame sync. edge detection.
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/*\}*/
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/**
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* SSC Receive Holding Register
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*/
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/*\{*/
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#define SSC_RHR_OFF 0x00000020 ///< Receive holding register offset.
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/*\}*/
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/**
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* SSC Transmit Holding Register
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*/
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/*\{*/
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#define SSC_THR_OFF 0x00000024 ///< Transmit holding register offset.
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/*\}*/
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/**
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* SSC Receive Sync. Holding Register
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*/
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/*\{*/
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#define SSC_RSHR_OFF 0x00000030 ///< Receive sync. holding register offset.
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/*\}*/
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/**
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* SSC Transmit Sync. Holding Register
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*/
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/*\{*/
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#define SSC_TSHR_OFF 0x00000034 ///< Transmit sync. holding register offset.
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/*\}*/
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/**
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* SSC Receive Compare 0 Register
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*/
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/*\{*/
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#define SSC_RC0R_OFF 0x00000038 ///< Receive compare 0 register offset.
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/*\}*/
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/**
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* SSC Receive Compare 1 Register
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*/
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/*\{*/
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#define SSC_RC1R_OFF 0x0000003C ///< Receive compare 1 register offset.
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/*\}*/
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/**
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* SSC Status and Interrupt Register
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*/
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/*\{*/
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#define SSC_SR_OFF 0x00000040 ///< Status register offset.
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#define SSC_IER_OFF 0x00000044 ///< Interrupt enable register offset.
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#define SSC_IDR_OFF 0x00000048 ///< Interrupt disable register offset.
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#define SSC_IMR_OFF 0x0000004C ///< Interrupt mask register offset.
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#define SSC_TXRDY 0 ///< Transmit ready.
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#define SSC_TXEMPTY 1 ///< Transmit empty.
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#define SSC_ENDTX 2 ///< End of transmission.
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#define SSC_TXBUFE 3 ///< Transmit buffer empty.
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#define SSC_RXRDY 4 ///< Receive ready.
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#define SSC_OVRUN 5 ///< Receive overrun.
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#define SSC_ENDRX 6 ///< End of receiption.
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#define SSC_RXBUFF 7 ///< Receive buffer full.
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#define SSC_CP0 8 ///< Compare 0.
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#define SSC_CP1 9 ///< Compare 1.
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#define SSC_TXSYN 10 ///< Transmit sync.
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#define SSC_RXSYN 11 ///< Receive sync.
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#define SSC_TXENA 16 ///< Transmit enable.
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#define SSC_RXENA 17 ///< Receive enable.
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#if defined(SSC_BASE)
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#define SSC_CR (*((reg32_t *)(SSC_BASE + SSC_CR_OFF))) ///< Control register address.
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#define SSC_CMR (*((reg32_t *)(SSC_BASE + SSC_CMR_OFF))) ///< Clock mode register address.
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#define SSC_RCMR (*((reg32_t *)(SSC_BASE + SSC_RCMR_OFF))) ///< Receive clock mode register address.
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#define SSC_TCMR (*((reg32_t *)(SSC_BASE + SSC_TCMR_OFF))) ///< Transmit clock mode register address.
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#define SSC_RFMR (*((reg32_t *)(SSC_BASE + SSC_RFMR_OFF))) ///< Receive frame mode register address.
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#define SSC_TFMR (*((reg32_t *)(SSC_BASE + SSC_TFMR_OFF))) ///< Transmit frame mode register address.
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#define SSC_RHR (*((reg32_t *)(SSC_BASE + SSC_RHR_OFF))) ///< Receive holding register address.
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#define SSC_THR (*((reg32_t *)(SSC_BASE + SSC_THR_OFF))) ///< Transmit holding register address.
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#define SSC_RSHR (*((reg32_t *)(SSC_BASE + SSC_RSHR_OFF))) ///< Receive sync. holding register address.
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#define SSC_TSHR (*((reg32_t *)(SSC_BASE + SSC_TSHR_OFF))) ///< Transmit sync. holding register address.
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#define SSC_RC0R (*((reg32_t *)(SSC_BASE + SSC_RC0R_OFF))) ///< Receive compare 0 register address.
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#define SSC_RC1R (*((reg32_t *)(SSC_BASE + SSC_RC1R_OFF))) ///< Receive compare 1 register address.
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#define SSC_SR (*((reg32_t *)(SSC_BASE + SSC_SR_OFF))) ///< Status register address.
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#define SSC_IER (*((reg32_t *)(SSC_BASE + SSC_IER_OFF))) ///< Interrupt enable register address.
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#define SSC_IDR (*((reg32_t *)(SSC_BASE + SSC_IDR_OFF))) ///< Interrupt disable register address.
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#define SSC_IMR (*((reg32_t *)(SSC_BASE + SSC_IMR_OFF))) ///< Interrupt mask register address.
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#if defined(SSC_HAS_PDC)
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#define SSC_RPR (*((reg32_t *)(SSC_BASE + PERIPH_RPR_OFF))) ///< PDC receive pointer register address.
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#define SSC_RCR (*((reg32_t *)(SSC_BASE + PERIPH_RCR_OFF))) ///< PDC receive counter register address.
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#define SSC_TPR (*((reg32_t *)(SSC_BASE + PERIPH_TPR_OFF))) ///< PDC transmit pointer register address.
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#define SSC_TCR (*((reg32_t *)(SSC_BASE + PERIPH_TCR_OFF))) ///< PDC transmit counter register address.
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#define SSC_RNPR (*((reg32_t *)(SSC_BASE + PERIPH_RNPR_OFF))) ///< PDC receive next pointer register address.
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#define SSC_RNCR (*((reg32_t *)(SSC_BASE + PERIPH_RNCR_OFF))) ///< PDC receive next counter register address.
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#define SSC_TNPR (*((reg32_t *)(SSC_BASE + PERIPH_TNPR_OFF))) ///< PDC transmit next pointer register address.
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#define SSC_TNCR (*((reg32_t *)(SSC_BASE + PERIPH_TNCR_OFF))) ///< PDC transmit next counter register address.
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#define SSC_PTCR (*((reg32_t *)(SSC_BASE + PERIPH_PTCR_OFF))) ///< PDC transfer control register address.
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#define SSC_PTSR (*((reg32_t *)(SSC_BASE + PERIPH_PTSR_OFF))) ///< PDC transfer status register address.
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#endif /* SSC_HAS_PDC */
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#endif /* SSC_BASE */
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#endif /* AT91_SSC_H */
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