1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2007 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 #ifndef _BOOT_SERIAL_H 27 #define _BOOT_SERIAL_H 28 29 #pragma ident "%Z%%M% %I% %E% SMI" 30 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 /* ---- ports on 16550 serial chips ---- */ 36 #define DAT 0 /* ... data */ 37 #define ICR 1 /* ... intr control reg */ 38 #define ISR 2 /* ... intr status reg */ 39 #define LCR 3 /* ... line control reg */ 40 #define MCR 4 /* ... modem control reg */ 41 #define LSR 5 /* ... line status reg */ 42 #define MSR 6 /* ... modem status reg */ 43 #define DLL 0 /* ... data latch low (used for baud rate) */ 44 #define DLH 1 /* ... data latch high (ditto) */ 45 #define FIFOR ISR /* ... fifo write reg */ 46 47 /* ---- LSR bits ---- */ 48 #define RCA 0x01 /* ... receive char avail */ 49 #define XHRE 0x20 /* ... xmit hold buffer empty */ 50 51 /* ---- Modem bits ---- */ 52 #define DTR 0x01 53 #define RTS 0x02 54 #define OUT2 0x08 55 56 #define FIFO_ON 0x01 57 #define FIFO_OFF 0x00 58 #define FIFORXFLSH 0x02 59 #define FIFOTXFLSH 0x04 60 #define FIFODMA 0x08 61 62 /* ---- LCR bits ---- */ 63 #define STOP1 00 64 #define STOP2 0x04 65 #define BITS5 0x00 /* 5 bits per char */ 66 #define BITS6 0x01 /* 6 bits per char */ 67 #define BITS7 0x02 /* 7 bits per char */ 68 #define BITS8 0x03 /* 8 bits per char */ 69 70 /* baud rate definitions */ 71 #define DLAB 0x80 /* divisor latch access bit */ 72 #define ASY110 1047 /* 110 baud rate for serial console */ 73 #define ASY150 768 /* 150 baud rate for serial console */ 74 #define ASY300 384 /* 300 baud rate for serial console */ 75 #define ASY600 192 /* 600 baud rate for serial console */ 76 #define ASY1200 96 /* 1200 baud rate for serial console */ 77 #define ASY2400 48 /* 2400 baud rate for serial console */ 78 #define ASY4800 24 /* 4800 baud rate for serial console */ 79 #define ASY9600 12 /* 9600 baud rate for serial console */ 80 #define ASY19200 6 /* 19200 baud rate for serial console */ 81 #define ASY38400 3 /* 38400 baud rate for serial console */ 82 #define ASY57600 2 /* 57600 baud rate for serial console */ 83 #define ASY115200 1 /* 115200 baud rate for serial console */ 84 85 86 /* 87 * Defines for the serial port 88 */ 89 90 #define SERIAL_FIFO_FLUSH 16 /* maximum number of chars to flush */ 91 92 /* ---- Bit 11 defines direct serial port ---- */ 93 #define SDIRECT 0x1000 94 95 /* ---- Bits 9-10 define flow control ---- */ 96 #define SSOFT 0x800 97 #define SHARD 0x400 98 99 /* ---- Bits 5-8 define baud rate ---- */ 100 #define S110 0x00 101 #define S150 0x20 102 #define S300 0x40 103 #define S600 0x60 104 #define S1200 0x80 105 #define S2400 0xa0 106 #define S4800 0xc0 107 #define S9600 0xe0 108 #define S19200 0x100 109 #define S38400 0x120 110 #define S57600 0x140 111 #define S76800 0x160 112 #define S115200 0x180 113 #define S153600 0x1a0 114 #define S230400 0x1c0 115 #define S307200 0x1e0 116 #define S460800 0x200 117 118 /* ---- Bits 3 & 4 are parity ---- */ 119 #define PARITY_NONE 0x10 120 #define PARITY_ODD 0x08 121 #define PARITY_EVEN 0x18 122 123 /* ---- Bit 2 is stop bit ---- */ 124 #define STOP_1 0x00 125 #define STOP_2 0x04 126 127 /* ---- Bits 0 & 1 are data bits ---- */ 128 #define DATA_8 0x03 129 #define DATA_7 0x02 130 #define DATA_6 0x01 131 #define DATA_5 0x00 132 133 /* ---- Line Status ---- */ 134 #define SERIAL_TIMEOUT 0x80 135 #define SERIAL_XMITSHFT 0x40 136 #define SERIAL_XMITHOLD 0x20 137 #define SERIAL_BREAK 0x10 138 #define SERIAL_FRAME 0x08 139 #define SERIAL_PARITY 0x04 140 #define SERIAL_OVERRUN 0x02 141 #define SERIAL_DATA 0x01 142 143 144 #ifdef __cplusplus 145 } 146 #endif 147 148 #endif /* _BOOT_SERIAL_H */ 149