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1da177e4 LT |
1 | /**************************************************************************** |
2 | ******* ******* | |
3 | ******* P H B H E A D E R ******* | |
4 | ******* ******* | |
5 | **************************************************************************** | |
6 | ||
7 | Author : Ian Nandhra, Jeremy Rolls | |
8 | Date : | |
9 | ||
10 | * | |
11 | * (C) 1990 - 2000 Specialix International Ltd., Byfleet, Surrey, UK. | |
12 | * | |
13 | * This program is free software; you can redistribute it and/or modify | |
14 | * it under the terms of the GNU General Public License as published by | |
15 | * the Free Software Foundation; either version 2 of the License, or | |
16 | * (at your option) any later version. | |
17 | * | |
18 | * This program is distributed in the hope that it will be useful, | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
21 | * GNU General Public License for more details. | |
22 | * | |
23 | * You should have received a copy of the GNU General Public License | |
24 | * along with this program; if not, write to the Free Software | |
25 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
26 | ||
27 | Version : 0.01 | |
28 | ||
29 | ||
30 | Mods | |
31 | ---------------------------------------------------------------------------- | |
32 | Date By Description | |
33 | ---------------------------------------------------------------------------- | |
34 | ||
35 | ***************************************************************************/ | |
36 | ||
37 | #ifndef _phb_h | |
38 | #define _phb_h 1 | |
39 | ||
1da177e4 LT |
40 | /************************************************* |
41 | * Handshake asserted. Deasserted by the LTT(s) | |
42 | ************************************************/ | |
8d8706e2 | 43 | #define PHB_HANDSHAKE_SET ((ushort) 0x001) /* Set by LRT */ |
1da177e4 | 44 | |
8d8706e2 | 45 | #define PHB_HANDSHAKE_RESET ((ushort) 0x002) /* Set by ISR / driver */ |
1da177e4 LT |
46 | |
47 | #define PHB_HANDSHAKE_FLAGS (PHB_HANDSHAKE_RESET | PHB_HANDSHAKE_SET) | |
8d8706e2 | 48 | /* Reset by ltt */ |
1da177e4 LT |
49 | |
50 | ||
51 | /************************************************* | |
52 | * Maximum number of PHB's | |
53 | ************************************************/ | |
8d8706e2 | 54 | #define MAX_PHB ((ushort) 128) /* range 0-127 */ |
1da177e4 LT |
55 | |
56 | /************************************************* | |
57 | * Defines for the mode fields | |
58 | ************************************************/ | |
8d8706e2 AM |
59 | #define TXPKT_INCOMPLETE 0x0001 /* Previous tx packet not completed */ |
60 | #define TXINTR_ENABLED 0x0002 /* Tx interrupt is enabled */ | |
61 | #define TX_TAB3 0x0004 /* TAB3 mode */ | |
62 | #define TX_OCRNL 0x0008 /* OCRNL mode */ | |
63 | #define TX_ONLCR 0x0010 /* ONLCR mode */ | |
64 | #define TX_SENDSPACES 0x0020 /* Send n spaces command needs | |
65 | completing */ | |
66 | #define TX_SENDNULL 0x0040 /* Escaping NULL needs completing */ | |
67 | #define TX_SENDLF 0x0080 /* LF -> CR LF needs completing */ | |
68 | #define TX_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel | |
69 | port */ | |
1da177e4 LT |
70 | #define TX_HANGOVER (TX_SENDSPACES | TX_SENDLF | TX_SENDNULL) |
71 | #define TX_DTRFLOW 0x0200 /* DTR tx flow control */ | |
72 | #define TX_DTRFLOWED 0x0400 /* DTR is low - don't allow more data | |
73 | into the FIFO */ | |
74 | #define TX_DATAINFIFO 0x0800 /* There is data in the FIFO */ | |
75 | #define TX_BUSY 0x1000 /* Data in FIFO, shift or holding regs */ | |
76 | ||
8d8706e2 AM |
77 | #define RX_SPARE 0x0001 /* SPARE */ |
78 | #define RXINTR_ENABLED 0x0002 /* Rx interrupt enabled */ | |
79 | #define RX_ICRNL 0x0008 /* ICRNL mode */ | |
80 | #define RX_INLCR 0x0010 /* INLCR mode */ | |
81 | #define RX_IGNCR 0x0020 /* IGNCR mode */ | |
82 | #define RX_CTSFLOW 0x0040 /* CTSFLOW enabled */ | |
83 | #define RX_IXOFF 0x0080 /* IXOFF enabled */ | |
84 | #define RX_CTSFLOWED 0x0100 /* CTSFLOW and CTS dropped */ | |
85 | #define RX_IXOFFED 0x0200 /* IXOFF and xoff sent */ | |
86 | #define RX_BUFFERED 0x0400 /* Try and pass on complete packets */ | |
1da177e4 | 87 | |
8d8706e2 AM |
88 | #define PORT_ISOPEN 0x0001 /* Port open? */ |
89 | #define PORT_HUPCL 0x0002 /* Hangup on close? */ | |
90 | #define PORT_MOPENPEND 0x0004 /* Modem open pending */ | |
91 | #define PORT_ISPARALLEL 0x0008 /* Parallel port */ | |
92 | #define PORT_BREAK 0x0010 /* Port on break */ | |
93 | #define PORT_STATUSPEND 0x0020 /* Status packet pending */ | |
94 | #define PORT_BREAKPEND 0x0040 /* Break packet pending */ | |
95 | #define PORT_MODEMPEND 0x0080 /* Modem status packet pending */ | |
96 | #define PORT_PARALLELBUG 0x0100 /* CD1400 LF -> CR LF bug on parallel | |
97 | port */ | |
98 | #define PORT_FULLMODEM 0x0200 /* Full modem signals */ | |
99 | #define PORT_RJ45 0x0400 /* RJ45 connector - no RI signal */ | |
100 | #define PORT_RESTRICTED 0x0600 /* Restricted connector - no RI / DTR */ | |
1da177e4 | 101 | |
8d8706e2 | 102 | #define PORT_MODEMBITS 0x0600 /* Mask for modem fields */ |
1da177e4 | 103 | |
8d8706e2 | 104 | #define PORT_WCLOSE 0x0800 /* Waiting for close */ |
1da177e4 LT |
105 | #define PORT_HANDSHAKEFIX 0x1000 /* Port has H/W flow control fix */ |
106 | #define PORT_WASPCLOSED 0x2000 /* Port closed with PCLOSE */ | |
107 | #define DUMPMODE 0x4000 /* Dump RTA mem */ | |
108 | #define READ_REG 0x8000 /* Read CD1400 register */ | |
109 | ||
110 | ||
111 | ||
112 | /************************************************************************** | |
113 | * PHB Structure | |
114 | * A few words. | |
115 | * | |
116 | * Normally Packets are added to the end of the list and removed from | |
117 | * the start. The pointer tx_add points to a SPACE to put a Packet. | |
118 | * The pointer tx_remove points to the next Packet to remove | |
119 | *************************************************************************/ | |
57c2d60e | 120 | |
1da177e4 | 121 | struct PHB { |
74769abf AC |
122 | u8 source; |
123 | u8 handshake; | |
124 | u8 status; | |
125 | u16 timeout; /* Maximum of 1.9 seconds */ | |
126 | u8 link; /* Send down this link */ | |
127 | u8 destination; | |
128 | u16 tx_start; | |
129 | u16 tx_end; | |
130 | u16 tx_add; | |
131 | u16 tx_remove; | |
132 | ||
133 | u16 rx_start; | |
134 | u16 rx_end; | |
135 | u16 rx_add; | |
136 | u16 rx_remove; | |
1da177e4 | 137 | |
8d8706e2 | 138 | }; |
1da177e4 LT |
139 | |
140 | #endif | |
141 | ||
142 | /*********** end of file ***********/ |