1 /* -*-C++-*- $NetBSD: arm_console.h,v 1.3 2001/05/08 18:51:24 uch Exp $ */ 2 3 /*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by UCHIYAMA Yasushi. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _HPCBOOT_ARM_CONSOLE_H_ 40 #define _HPCBOOT_ARM_CONSOLE_H_ 41 42 #include <hpcboot.h> 43 #include <console.h> 44 #include <memory.h> 45 46 class ARMConsole : public SerialConsole { 47 private: 48 typedef SerialConsole super; 49 50 static ARMConsole *_instance; 51 52 MemoryManager *&_mem; 53 vaddr_t _uart_base; 54 vaddr_t _uart_busy, _uart_transmit; 55 56 private: 57 ARMConsole(MemoryManager *& mem) : _mem(mem) { /* NO-OP */ } 58 59 virtual ~ARMConsole() { 60 _mem->unmapPhysicalPage(_uart_base); 61 } 62 63 void __tx_busy(void) { 64 u_int8_t reg; 65 do 66 reg = VOLATILE_REF8(_uart_busy); 67 while ((reg & 0x1) == 0x1 ||(reg & 0x4) == 0); 68 } 69 70 void __putc(const char s) { 71 __tx_busy(); // wait until previous transmit done. 72 VOLATILE_REF8(_uart_transmit) = 73 static_cast <u_int8_t>(0xff & s); 74 } 75 76 public: 77 static ARMConsole *Instance(MemoryManager *&); 78 static void Destroy(void); 79 virtual BOOL init(void); 80 virtual void print(const TCHAR *fmt, ...); 81 }; 82 #endif //_HPCBOOT_ARM_CONSOLE_H_ 83