80 lines
2.9 KiB
C++
80 lines
2.9 KiB
C++
/* -*-C++-*- $NetBSD: arm_console.h,v 1.1 2001/02/09 18:34:54 uch Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by UCHIYAMA Yasushi.
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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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* 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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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 THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _HPCBOOT_ARM_CONSOLE_H_
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#define _HPCBOOT_ARM_CONSOLE_H_
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#include <hpcboot.h>
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#include <console.h>
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#include <memory.h>
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class ARMConsole : public SerialConsole {
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private:
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static ARMConsole *_instance;
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MemoryManager *&_mem;
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vaddr_t _uart_base;
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vaddr_t _uart_busy, _uart_transmit;
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private:
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ARMConsole(MemoryManager *& mem) : _mem(mem) { /* NO-OP */ }
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virtual ~ARMConsole() {
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_mem->unmapPhysicalPage(_uart_base);
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}
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void __tx_busy(void) {
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u_int8_t reg;
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do
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reg = VOLATILE_REF8(_uart_busy);
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while ((reg & 0x1) == 0x1 ||(reg & 0x4) == 0);
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}
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void __putc(const char s) {
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__tx_busy(); // wait until previous transmit done.
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VOLATILE_REF8(_uart_transmit) = static_cast <u_int8_t>(0xff & s);
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}
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public:
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static ARMConsole *Instance(MemoryManager *&);
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static void Destroy(void);
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virtual BOOL init(void);
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virtual void print(const TCHAR *fmt, ...);
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};
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#endif //_HPCBOOT_ARM_CONSOLE_H_
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