1 /* $NetBSD: dhureg.h,v 1.5 2003/04/06 15:45:12 ragge Exp $ */ 2 /* 3 * Copyright (c) 1996 Ken C. Wellsch. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34 #ifdef notdef 35 union w_b 36 { 37 u_short word; 38 struct { 39 u_char byte_lo; 40 u_char byte_hi; 41 } bytes; 42 }; 43 44 struct DHUregs 45 { 46 volatile union w_b u_csr; /* Control/Status Register (R/W) */ 47 volatile u_short dhu_rbuf; /* Receive Buffer (R only) */ 48 #define dhu_txchar dhu_rbuf /* Transmit Character (W only) */ 49 volatile u_short dhu_lpr; /* Line Parameter Register (R/W) */ 50 volatile u_short dhu_stat; /* Line Status (R only) */ 51 volatile u_short dhu_lnctrl; /* Line Control (R/W) */ 52 volatile u_short dhu_tbufad1; /* Transmit Buffer Address 1 (R/W) */ 53 volatile u_short dhu_tbufad2; /* Transmit Buffer Address 2 (R/W) */ 54 volatile u_short dhu_tbufcnt; /* Transmit Buffer Count (R/W) */ 55 }; 56 57 #define dhu_csr u_csr.word 58 #define dhu_csr_lo u_csr.bytes.byte_lo 59 #define dhu_csr_hi u_csr.bytes.byte_hi 60 61 typedef struct DHUregs dhuregs; 62 #endif 63 64 #define DHU_UBA_CSR 0 65 #define DHU_UBA_CSR_HI 1 66 #define DHU_UBA_RBUF 2 67 #define DHU_UBA_TXCHAR 2 68 #define DHU_UBA_RXTIME DHU_UBA_TXCHAR /* on a real dhu only */ 69 #define DHU_UBA_LPR 4 70 #define DHU_UBA_STAT 6 71 #define DHU_UBA_FIFO DHU_UBA_STAT /* on a real dhu only */ 72 #define DHU_UBA_LNCTRL 8 73 #define DHU_UBA_TBUFAD1 10 74 #define DHU_UBA_TBUFAD2 12 75 #define DHU_UBA_TBUFCNT 14 76 77 /* CSR bits */ 78 79 #define DHU_CSR_TX_ACTION 0100000 80 #define DHU_CSR_TXIE 0040000 81 #define DHU_CSR_DIAG_FAIL 0020000 82 #define DHU_CSR_TX_DMA_ERROR 0010000 83 #define DHU_CSR_TX_LINE_MASK 0007400 84 #define DHU_CSR_RX_DATA_AVAIL 0000200 85 #define DHU_CSR_RXIE 0000100 86 #define DHU_CSR_MASTER_RESET 0000040 87 #define DHU_CSR_UNUSED 0000020 88 #define DHU_CSR_CHANNEL_MASK 0000017 89 90 /* RBUF bits */ 91 92 #define DHU_RBUF_DATA_VALID 0100000 93 #define DHU_RBUF_OVERRUN_ERR 0040000 94 #define DHU_RBUF_FRAMING_ERR 0020000 95 #define DHU_RBUF_PARITY_ERR 0010000 96 #define DHU_RBUF_RX_LINE_MASK 0007400 97 98 #define DHU_DIAG_CODE 0070001 99 #define DHU_MODEM_CODE 0070000 100 101 /* TXCHAR bits */ 102 103 #define DHU_TXCHAR_DATA_VALID 0100000 104 105 /* LPR bits */ 106 107 #define DHU_LPR_B50 0x0 108 #define DHU_LPR_B75 0x1 109 #define DHU_LPR_B110 0x2 110 #define DHU_LPR_B134 0x3 111 #define DHU_LPR_B150 0x4 112 #define DHU_LPR_B300 0x5 113 #define DHU_LPR_B600 0x6 114 #define DHU_LPR_B1200 0x7 115 #define DHU_LPR_B1800 0x8 116 #define DHU_LPR_B2000 0x9 117 #define DHU_LPR_B2400 0xA 118 #define DHU_LPR_B4800 0xB 119 #define DHU_LPR_B7200 0xC 120 #define DHU_LPR_B9600 0xD 121 #define DHU_LPR_B19200 0xE 122 #define DHU_LPR_B38400 0xF 123 124 #define DHU_LPR_5_BIT_CHAR 0000000 125 #define DHU_LPR_6_BIT_CHAR 0000010 126 #define DHU_LPR_7_BIT_CHAR 0000020 127 #define DHU_LPR_8_BIT_CHAR 0000030 128 #define DHU_LPR_PARENB 0000040 129 #define DHU_LPR_EPAR 0000100 130 #define DHU_LPR_2_STOP 0000200 131 132 /* STAT bits */ 133 134 #define DHU_STAT_DSR 0100000 135 #define DHU_STAT_RI 0020000 136 #define DHU_STAT_DCD 0010000 137 #define DHU_STAT_CTS 0004000 138 #define DHU_STAT_MDL 0001000 139 #define DHU_STAT_DHU 0000400 140 141 /* LNCTRL bits */ 142 143 #define DHU_LNCTRL_DMA_ABORT 0000001 144 #define DHU_LNCTRL_IAUTO 0000002 145 #define DHU_LNCTRL_RX_ENABLE 0000004 146 #define DHU_LNCTRL_BREAK 0000010 147 #define DHU_LNCTRL_OAUTO 0000020 148 #define DHU_LNCTRL_FORCE_XOFF 0000040 149 #define DHU_LNCTRL_LINK_TYPE 0000400 150 #define DHU_LNCTRL_DTR 0001000 151 #define DHU_LNCTRL_RTS 0010000 152 153 /* TBUFAD2 bits */ 154 155 #define DHU_TBUFAD2_DMA_START 0000200 156 #define DHU_TBUFAD2_TX_ENABLE 0100000 157