4 * Copyright (c) 1995 John Hay.
5 * Copyright (c) 1996 SDL Communications, Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the author nor the names of any co-contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * $Id: if_ntwoc_isareg.h,v 1.1 2000/01/04 06:29:21 chopps Exp $
34 #ifndef _IF_NTWOC_ISAREG_H_
35 #define _IF_NTWOC_ISAREG_H_
37 #define NTWOC_ISA_NCHAN 2 /* A HD64570 chip have 2 channels */
39 #define NTWOC_BUF_SIZ 512
40 #define NTWOC_TX_BLOCKS 2 /* Sepperate sets of tx buffers */
42 #define NTWOC_CRD_N2 1
47 #define NTWOC_SRC_IOPORT_SIZE 0x08 /* also uses 0x8400 -> 0xAxxx */
49 /* config flags are as follows */
51 * 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0
52 * +-------------+ +-----+ +-----+ + +---+ +-+ + +---+ +-+ +
53 * tmc tdiv rdiv e1 rxs1 ts1 e0 rxs0 txs0 nports - 1
55 #define NTWOC_FLAGS_NPORT_MASK 0x00000001 /* nports - 1 */
56 #define NTWOC_FLAGS_CLK0_MASK 0x000000fc /* port 0 clock info mask */
57 #define NTWOC_FLAGS_CLK1_MASK 0x0000fc00 /* port 1 clock info mask */
58 #define NTWOC_FLAGS_RXDIV_MASK 0x000F0000 /* rx div mask */
59 #define NTWOC_FLAGS_TXDIV_MASK 0x00F00000 /* tx div mask */
60 #define NTWOC_FLAGS_TMC_MASK 0xFF000000 /* tmc port 0 mask */
62 #define NTWOC_FLAGS_CLK1_SHIFT 8
64 /* these are used after you shift down to the clock byte for the resp. port */
65 #define NTWOC_FLAGS_TXS_SHIFT 2
66 #define NTWOC_FLAGS_TXS_MASK 0x0000000c /* port 0 tx clk source mask */
67 #define NTWOC_FLAGS_TXS_LINE 0 /* use the line clock */
68 #define NTWOC_FLAGS_TXS_INTERNAL 1 /* use the internal clock */
69 #define NTWOC_FLAGS_TXS_RXCLOCK 2 /* use the receive clock */
71 #define NTWOC_FLAGS_RXS_SHIFT 4
72 #define NTWOC_FLAGS_RXS_MASK 0x00000070 /* port 0 rx clk source mask */
73 #define NTWOC_FLAGS_RXS_LINE 0 /* use the line clock */
74 #define NTWOC_FLAGS_RXS_LINE_SN 1 /* use line with noise supp. */
75 #define NTWOC_FLAGS_RXS_INTERNAL 2 /* use internal clock */
76 #define NTWOC_FLAGS_RXS_ADPLL_OUT 3 /* use brg out for adpll clk */
77 #define NTWOC_FLAGS_RXS_ADPLL_IN 4 /* use line in for adpll clk */
79 #define NTWOC_FLAGS_ECLOCK_SHIFT 7 /* generate external clock */
80 #define NTWOC_FLAGS_ECLOCK_MASK 0x00000080 /* port 0 ext clk gen mask */
82 /* these are used on the flags directly */
83 #define NTWOC_FLAGS_RXDIV_SHIFT 16
84 #define NTWOC_FLAGS_TXDIV_SHIFT 20
85 #define NTWOC_FLAGS_TMC_SHIFT 24
88 #define NTWOC_PCR 0x00 /* RW, PC Control Register */
89 #define NTWOC_BAR 0x02 /* RW, Base Address Register */
90 #define NTWOC_PSR 0x04 /* RW, Page Scan Register */
91 #define NTWOC_MCR 0x06 /* RW, Modem Control Register */
93 #define NTWOC_PCR_SCARUN 0x01 /* !Reset */
94 #define NTWOC_PCR_EN_VPM 0x02 /* Running above 1M */
95 #define NTWOC_PCR_MEM_WIN 0x04 /* Open memory window */
96 #define NTWOC_PCR_ISA16 0x08 /* 16 bit ISA mode */
97 #define NTWOC_PCR_16M_SEL 0xF0 /* A20-A23 Addresses */
99 #define NTWOC_PSR_PG_SEL 0x1F /* Page 0 - 31 select */
100 #define NTWOC_PG_MSK 0x1F
101 #define NTWOC_PSR_WIN_SIZ 0x60 /* Window size select */
102 #define NTWOC_PSR_WIN_16K 0x00
103 #define NTWOC_PSR_WIN_32K 0x20
104 #define NTWOC_PSR_WIN_64K 0x40
105 #define NTWOC_PSR_WIN_128K 0x60
106 #define NTWOC_PSR_EN_SCA_DMA 0x80 /* Enable the SCA DMA */
108 #define NTWOC_MCR_DTR0 0x01 /* Deactivate DTR0 */
109 #define NTWOC_MCR_DTR1 0x02 /* Deactivate DTR1 */
110 #define NTWOC_MCR_DSR0 0x04 /* DSR0 Status */
111 #define NTWOC_MCR_DSR1 0x08 /* DSR1 Status */
112 #define NTWOC_MCR_TE0 0x10 /* Enable RS422 TXD */
113 #define NTWOC_MCR_TE1 0x20 /* Enable RS422 TXD */
114 #define NTWOC_MCR_ETC0 0x40 /* Enable Ext Clock out */
115 #define NTWOC_MCR_ETC1 0x80 /* Enable Ext Clock out */
117 #endif /* _IF_NTWOC_ISAREG_H_ */