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 #ifdef __cplusplus 30 extern "C" { 31 #endif 32 33 /* ---- ports on 16550 serial chips ---- */ 34 #define DAT 0 /* ... data */ 35 #define ICR 1 /* ... intr control reg */ 36 #define ISR 2 /* ... intr status reg */ 37 #define LCR 3 /* ... line control reg */ 38 #define MCR 4 /* ... modem control reg */ 39 #define LSR 5 /* ... line status reg */ 40 #define MSR 6 /* ... modem status reg */ 41 #define DLL 0 /* ... data latch low (used for baud rate) */ 42 #define DLH 1 /* ... data latch high (ditto) */ 43 #define FIFOR ISR /* ... fifo write reg */ 44 45 /* ---- LSR bits ---- */ 46 #define RCA 0x01 /* ... receive char avail */ 47 #define XHRE 0x20 /* ... xmit hold buffer empty */ 48 49 /* ---- Modem bits ---- */ 50 #define DTR 0x01 51 #define RTS 0x02 52 #define OUT2 0x08 53 54 #define FIFO_ON 0x01 55 #define FIFO_OFF 0x00 56 #define FIFORXFLSH 0x02 57 #define FIFOTXFLSH 0x04 58 #define FIFODMA 0x08 59 60 /* ---- LCR bits ---- */ 61 #define STOP1 00 62 #define STOP2 0x04 63 #define BITS5 0x00 /* 5 bits per char */ 64 #define BITS6 0x01 /* 6 bits per char */ 65 #define BITS7 0x02 /* 7 bits per char */ 66 #define BITS8 0x03 /* 8 bits per char */ 67 68 /* baud rate definitions */ 69 #define DLAB 0x80 /* divisor latch access bit */ 70 #define ASY110 1047 /* 110 baud rate for serial console */ 71 #define ASY150 768 /* 150 baud rate for serial console */ 72 #define ASY300 384 /* 300 baud rate for serial console */ 73 #define ASY600 192 /* 600 baud rate for serial console */ 74 #define ASY1200 96 /* 1200 baud rate for serial console */ 75 #define ASY2400 48 /* 2400 baud rate for serial console */ 76 #define ASY4800 24 /* 4800 baud rate for serial console */ 77 #define ASY9600 12 /* 9600 baud rate for serial console */ 78 #define ASY19200 6 /* 19200 baud rate for serial console */ 79 #define ASY38400 3 /* 38400 baud rate for serial console */ 80 #define ASY57600 2 /* 57600 baud rate for serial console */ 81 #define ASY115200 1 /* 115200 baud rate for serial console */ 82 83 84 /* 85 * Defines for the serial port 86 */ 87 88 #define SERIAL_FIFO_FLUSH 16 /* maximum number of chars to flush */ 89 90 /* ---- Bit 11 defines direct serial port ---- */ 91 #define SDIRECT 0x1000 92 93 /* ---- Bits 9-10 define flow control ---- */ 94 #define SSOFT 0x800 95 #define SHARD 0x400 96 97 /* ---- Bits 5-8 define baud rate ---- */ 98 #define S110 0x00 99 #define S150 0x20 100 #define S300 0x40 101 #define S600 0x60 102 #define S1200 0x80 103 #define S2400 0xa0 104 #define S4800 0xc0 105 #define S9600 0xe0 106 #define S19200 0x100 107 #define S38400 0x120 108 #define S57600 0x140 109 #define S76800 0x160 110 #define S115200 0x180 111 #define S153600 0x1a0 112 #define S230400 0x1c0 113 #define S307200 0x1e0 114 #define S460800 0x200 115 116 /* ---- Bits 3 & 4 are parity ---- */ 117 #define PARITY_NONE 0x10 118 #define PARITY_ODD 0x08 119 #define PARITY_EVEN 0x18 120 121 /* ---- Bit 2 is stop bit ---- */ 122 #define STOP_1 0x00 123 #define STOP_2 0x04 124 125 /* ---- Bits 0 & 1 are data bits ---- */ 126 #define DATA_8 0x03 127 #define DATA_7 0x02 128 #define DATA_6 0x01 129 #define DATA_5 0x00 130 131 /* ---- Line Status ---- */ 132 #define SERIAL_TIMEOUT 0x80 133 #define SERIAL_XMITSHFT 0x40 134 #define SERIAL_XMITHOLD 0x20 135 #define SERIAL_BREAK 0x10 136 #define SERIAL_FRAME 0x08 137 #define SERIAL_PARITY 0x04 138 #define SERIAL_OVERRUN 0x02 139 #define SERIAL_DATA 0x01 140 141 142 #ifdef __cplusplus 143 } 144 #endif 145 146 #endif /* _BOOT_SERIAL_H */ 147