lcd.c revision 1.2.6.2
1 1.2.6.2 bouyer /* $NetBSD: lcd.c,v 1.2.6.2 2000/11/20 20:10:25 bouyer Exp $ */ 2 1.2.6.2 bouyer 3 1.2.6.2 bouyer /*- 4 1.2.6.2 bouyer * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 1.2.6.2 bouyer * All rights reserved. 6 1.2.6.2 bouyer * 7 1.2.6.2 bouyer * This code is derived from software contributed to The NetBSD Foundation 8 1.2.6.2 bouyer * by Tohru Nishimura. 9 1.2.6.2 bouyer * 10 1.2.6.2 bouyer * Redistribution and use in source and binary forms, with or without 11 1.2.6.2 bouyer * modification, are permitted provided that the following conditions 12 1.2.6.2 bouyer * are met: 13 1.2.6.2 bouyer * 1. Redistributions of source code must retain the above copyright 14 1.2.6.2 bouyer * notice, this list of conditions and the following disclaimer. 15 1.2.6.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.6.2 bouyer * notice, this list of conditions and the following disclaimer in the 17 1.2.6.2 bouyer * documentation and/or other materials provided with the distribution. 18 1.2.6.2 bouyer * 3. All advertising materials mentioning features or use of this software 19 1.2.6.2 bouyer * must display the following acknowledgement: 20 1.2.6.2 bouyer * This product includes software developed by the NetBSD 21 1.2.6.2 bouyer * Foundation, Inc. and its contributors. 22 1.2.6.2 bouyer * 4. Neither the name of The NetBSD Foundation nor the names of its 23 1.2.6.2 bouyer * contributors may be used to endorse or promote products derived 24 1.2.6.2 bouyer * from this software without specific prior written permission. 25 1.2.6.2 bouyer * 26 1.2.6.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 1.2.6.2 bouyer * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 1.2.6.2 bouyer * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 1.2.6.2 bouyer * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 1.2.6.2 bouyer * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 1.2.6.2 bouyer * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 1.2.6.2 bouyer * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 1.2.6.2 bouyer * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 1.2.6.2 bouyer * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 1.2.6.2 bouyer * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 1.2.6.2 bouyer * POSSIBILITY OF SUCH DAMAGE. 37 1.2.6.2 bouyer */ 38 1.2.6.2 bouyer 39 1.2.6.2 bouyer #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 40 1.2.6.2 bouyer 41 1.2.6.2 bouyer __KERNEL_RCSID(0, "$NetBSD: lcd.c,v 1.2.6.2 2000/11/20 20:10:25 bouyer Exp $"); 42 1.2.6.2 bouyer 43 1.2.6.2 bouyer /* 44 1.2.6.2 bouyer * XXX 45 1.2.6.2 bouyer * Following code segments are subject to change. 46 1.2.6.2 bouyer * XXX 47 1.2.6.2 bouyer */ 48 1.2.6.2 bouyer 49 1.2.6.2 bouyer #include <sys/param.h> 50 1.2.6.2 bouyer #include <sys/systm.h> 51 1.2.6.2 bouyer #include <sys/device.h> 52 1.2.6.2 bouyer 53 1.2.6.2 bouyer #define PIO1_MODE_OUTPUT 0x84 54 1.2.6.2 bouyer #define PIO1_MODE_INPUT 0x94 55 1.2.6.2 bouyer 56 1.2.6.2 bouyer #define POWER 0x10 57 1.2.6.2 bouyer 58 1.2.6.2 bouyer #define ENABLE 0x80 59 1.2.6.2 bouyer #define DISABLE 0x00 60 1.2.6.2 bouyer 61 1.2.6.2 bouyer #define WRITE_CMD (0x00 | 0x00) 62 1.2.6.2 bouyer #define WRITE_DATA (0x00 | 0x40) 63 1.2.6.2 bouyer #define READ_BUSY (0x20 | 0x00) 64 1.2.6.2 bouyer #define READ_DATA (0x20 | 0x40) 65 1.2.6.2 bouyer 66 1.2.6.2 bouyer #define LCD_INIT 0x38 67 1.2.6.2 bouyer #define LCD_ENTRY 0x06 68 1.2.6.2 bouyer #define LCD_ON 0x0c 69 1.2.6.2 bouyer #define LCD_CLS 0x01 70 1.2.6.2 bouyer #define LCD_HOME 0x02 71 1.2.6.2 bouyer #define LCD_LOCATE(X, Y) (((Y) & 1 ? 0xc0 : 0x80) | ((X) & 0x0f)) 72 1.2.6.2 bouyer 73 1.2.6.2 bouyer struct pio { 74 1.2.6.2 bouyer volatile u_int8_t portA; 75 1.2.6.2 bouyer volatile u_int8_t portB; 76 1.2.6.2 bouyer volatile u_int8_t portC; 77 1.2.6.2 bouyer volatile u_int8_t cntrl; 78 1.2.6.2 bouyer }; 79 1.2.6.2 bouyer 80 1.2.6.2 bouyer void lcdbusywait __P((void)); 81 1.2.6.2 bouyer void lcdput __P((int)); 82 1.2.6.2 bouyer void lcdctrl __P((int)); 83 1.2.6.2 bouyer void lcdshow __P((char *)); 84 1.2.6.2 bouyer void greeting __P((void)); 85 1.2.6.2 bouyer /* "1234567890123456" */ 86 1.2.6.2 bouyer static char lcd_boot_message1[] = " NetBSD/luna68k "; 87 1.2.6.2 bouyer static char lcd_boot_message2[] = " SX-9100/DT "; 88 1.2.6.2 bouyer 89 1.2.6.2 bouyer void 90 1.2.6.2 bouyer lcdbusywait() 91 1.2.6.2 bouyer { 92 1.2.6.2 bouyer struct pio *p1 = (struct pio *)0x4D000000; 93 1.2.6.2 bouyer int msb, s; 94 1.2.6.2 bouyer 95 1.2.6.2 bouyer s = splhigh(); 96 1.2.6.2 bouyer p1->cntrl = PIO1_MODE_INPUT; 97 1.2.6.2 bouyer p1->portC = POWER | READ_BUSY | ENABLE; 98 1.2.6.2 bouyer splx(s); 99 1.2.6.2 bouyer 100 1.2.6.2 bouyer do { 101 1.2.6.2 bouyer msb = p1->portA & ENABLE; 102 1.2.6.2 bouyer delay(5); 103 1.2.6.2 bouyer } while (msb != 0); 104 1.2.6.2 bouyer 105 1.2.6.2 bouyer s = splhigh(); 106 1.2.6.2 bouyer p1->portC = POWER | READ_BUSY | DISABLE; 107 1.2.6.2 bouyer splx(s); 108 1.2.6.2 bouyer } 109 1.2.6.2 bouyer 110 1.2.6.2 bouyer void 111 1.2.6.2 bouyer lcdput(cc) 112 1.2.6.2 bouyer int cc; 113 1.2.6.2 bouyer { 114 1.2.6.2 bouyer struct pio *p1 = (struct pio *)0x4D000000; 115 1.2.6.2 bouyer int s; 116 1.2.6.2 bouyer 117 1.2.6.2 bouyer lcdbusywait(); 118 1.2.6.2 bouyer 119 1.2.6.2 bouyer s = splhigh(); 120 1.2.6.2 bouyer p1->cntrl = PIO1_MODE_OUTPUT; 121 1.2.6.2 bouyer 122 1.2.6.2 bouyer p1->portC = POWER | WRITE_DATA | ENABLE; 123 1.2.6.2 bouyer p1->portA = cc; 124 1.2.6.2 bouyer p1->portC = POWER | WRITE_DATA | DISABLE; 125 1.2.6.2 bouyer splx(s); 126 1.2.6.2 bouyer } 127 1.2.6.2 bouyer 128 1.2.6.2 bouyer void 129 1.2.6.2 bouyer lcdctrl(cc) 130 1.2.6.2 bouyer int cc; 131 1.2.6.2 bouyer { 132 1.2.6.2 bouyer struct pio *p1 = (struct pio *)0x4D000000; 133 1.2.6.2 bouyer int s; 134 1.2.6.2 bouyer 135 1.2.6.2 bouyer lcdbusywait(); 136 1.2.6.2 bouyer 137 1.2.6.2 bouyer s = splhigh(); 138 1.2.6.2 bouyer p1->cntrl = PIO1_MODE_OUTPUT; 139 1.2.6.2 bouyer 140 1.2.6.2 bouyer p1->portC = POWER | WRITE_CMD | ENABLE; 141 1.2.6.2 bouyer p1->portA = cc; 142 1.2.6.2 bouyer p1->portC = POWER | WRITE_CMD | DISABLE; 143 1.2.6.2 bouyer splx(s); 144 1.2.6.2 bouyer } 145 1.2.6.2 bouyer 146 1.2.6.2 bouyer void 147 1.2.6.2 bouyer lcdshow(s) 148 1.2.6.2 bouyer char *s; 149 1.2.6.2 bouyer { 150 1.2.6.2 bouyer int cc; 151 1.2.6.2 bouyer 152 1.2.6.2 bouyer while ((cc = *s++) != '\0') 153 1.2.6.2 bouyer lcdput(cc); 154 1.2.6.2 bouyer } 155 1.2.6.2 bouyer 156 1.2.6.2 bouyer void 157 1.2.6.2 bouyer greeting() 158 1.2.6.2 bouyer { 159 1.2.6.2 bouyer lcdctrl(LCD_INIT); 160 1.2.6.2 bouyer lcdctrl(LCD_ENTRY); 161 1.2.6.2 bouyer lcdctrl(LCD_ON); 162 1.2.6.2 bouyer 163 1.2.6.2 bouyer lcdctrl(LCD_CLS); 164 1.2.6.2 bouyer lcdctrl(LCD_HOME); 165 1.2.6.2 bouyer 166 1.2.6.2 bouyer lcdctrl(LCD_LOCATE(0, 0)); 167 1.2.6.2 bouyer lcdshow(lcd_boot_message1); 168 1.2.6.2 bouyer lcdctrl(LCD_LOCATE(0, 1)); 169 1.2.6.2 bouyer lcdshow(lcd_boot_message2); 170 1.2.6.2 bouyer } 171
Indexes created Thu Oct 02 14:10:14 GMT 2025