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1da177e4 LT |
1 | /* |
2 | ** ----------------------------------------------------------------------------- | |
3 | ** | |
4 | ** Perle Specialix driver for Linux | |
5 | ** Ported from existing RIO Driver for SCO sources. | |
6 | * | |
7 | * (C) 1990 - 1998 Specialix International Ltd., Byfleet, Surrey, UK. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | * | |
14 | * This program is distributed in the hope that it will be useful, | |
15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | * GNU General Public License for more details. | |
18 | * | |
19 | * You should have received a copy of the GNU General Public License | |
20 | * along with this program; if not, write to the Free Software | |
21 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
22 | ** | |
23 | ** Module : rio.h | |
24 | ** SID : 1.3 | |
25 | ** Last Modified : 11/6/98 11:34:13 | |
26 | ** Retrieved : 11/6/98 11:34:22 | |
27 | ** | |
28 | ** ident @(#)rio.h 1.3 | |
29 | ** | |
30 | ** ----------------------------------------------------------------------------- | |
31 | */ | |
32 | ||
33 | #ifndef __rio_rio_h__ | |
34 | #define __rio_rio_h__ | |
35 | ||
1da177e4 LT |
36 | /* |
37 | ** Maximum numbers of things | |
38 | */ | |
39 | #define RIO_SLOTS 4 /* number of configuration slots */ | |
40 | #define RIO_HOSTS 4 /* number of hosts that can be found */ | |
41 | #define PORTS_PER_HOST 128 /* number of ports per host */ | |
42 | #define LINKS_PER_UNIT 4 /* number of links from a host */ | |
8d8706e2 AM |
43 | #define RIO_PORTS (PORTS_PER_HOST * RIO_HOSTS) /* max. no. of ports */ |
44 | #define RTAS_PER_HOST (MAX_RUP) /* number of RTAs per host */ | |
1da177e4 LT |
45 | #define PORTS_PER_RTA (PORTS_PER_HOST/RTAS_PER_HOST) /* ports on a rta */ |
46 | #define PORTS_PER_MODULE 4 /* number of ports on a plug-in module */ | |
47 | /* number of modules on an RTA */ | |
48 | #define MODULES_PER_RTA (PORTS_PER_RTA/PORTS_PER_MODULE) | |
49 | #define MAX_PRODUCT 16 /* numbr of different product codes */ | |
50 | #define MAX_MODULE_TYPES 16 /* number of different types of module */ | |
51 | ||
52 | #define RIO_CONTROL_DEV 128 /* minor number of host/control device */ | |
53 | #define RIO_INVALID_MAJOR 0 /* test first host card's major no for validity */ | |
54 | ||
55 | /* | |
56 | ** number of RTAs that can be bound to a master | |
57 | */ | |
58 | #define MAX_RTA_BINDINGS (MAX_RUP * RIO_HOSTS) | |
59 | ||
60 | /* | |
61 | ** Unit types | |
62 | */ | |
63 | #define PC_RTA16 0x90000000 | |
64 | #define PC_RTA8 0xe0000000 | |
65 | #define TYPE_HOST 0 | |
66 | #define TYPE_RTA8 1 | |
67 | #define TYPE_RTA16 2 | |
68 | ||
69 | /* | |
70 | ** Flag values returned by functions | |
71 | */ | |
554b7c80 | 72 | |
1da177e4 | 73 | #define RIO_FAIL -1 |
1da177e4 LT |
74 | |
75 | /* | |
76 | ** SysPort value for something that hasn't any ports | |
77 | */ | |
78 | #define NO_PORT 0xFFFFFFFF | |
79 | ||
80 | /* | |
81 | ** Unit ID Of all hosts | |
82 | */ | |
83 | #define HOST_ID 0 | |
84 | ||
85 | /* | |
86 | ** Break bytes into nybles | |
87 | */ | |
88 | #define LONYBLE(X) ((X) & 0xF) | |
89 | #define HINYBLE(X) (((X)>>4) & 0xF) | |
90 | ||
91 | /* | |
92 | ** Flag values passed into some functions | |
93 | */ | |
94 | #define DONT_SLEEP 0 | |
95 | #define OK_TO_SLEEP 1 | |
96 | ||
97 | #define DONT_PRINT 1 | |
98 | #define DO_PRINT 0 | |
99 | ||
100 | #define PRINT_TO_LOG_CONS 0 | |
101 | #define PRINT_TO_CONS 1 | |
102 | #define PRINT_TO_LOG 2 | |
103 | ||
104 | /* | |
105 | ** Timeout has trouble with times of less than 3 ticks... | |
106 | */ | |
107 | #define MIN_TIMEOUT 3 | |
108 | ||
109 | /* | |
110 | ** Generally useful constants | |
111 | */ | |
554b7c80 AC |
112 | |
113 | #define HUNDRED_MS ((HZ/10)?(HZ/10):1) | |
1da177e4 LT |
114 | #define ONE_MEG 0x100000 |
115 | #define SIXTY_FOUR_K 0x10000 | |
116 | ||
117 | #define RIO_AT_MEM_SIZE SIXTY_FOUR_K | |
118 | #define RIO_EISA_MEM_SIZE SIXTY_FOUR_K | |
119 | #define RIO_MCA_MEM_SIZE SIXTY_FOUR_K | |
120 | ||
1da177e4 LT |
121 | #define COOK_WELL 0 |
122 | #define COOK_MEDIUM 1 | |
123 | #define COOK_RAW 2 | |
124 | ||
125 | /* | |
126 | ** Pointer manipulation stuff | |
127 | ** RIO_PTR takes hostp->Caddr and the offset into the DP RAM area | |
128 | ** and produces a UNIX caddr_t (pointer) to the object | |
129 | ** RIO_OBJ takes hostp->Caddr and a UNIX pointer to an object and | |
130 | ** returns the offset into the DP RAM area. | |
131 | */ | |
d886cb58 AV |
132 | #define RIO_PTR(C,O) (((unsigned char __iomem *)(C))+(0xFFFF&(O))) |
133 | #define RIO_OFF(C,O) ((unsigned char __iomem *)(O)-(unsigned char __iomem *)(C)) | |
1da177e4 LT |
134 | |
135 | /* | |
136 | ** How to convert from various different device number formats: | |
137 | ** DEV is a dev number, as passed to open, close etc - NOT a minor | |
138 | ** number! | |
554b7c80 AC |
139 | **/ |
140 | ||
1da177e4 LT |
141 | #define RIO_MODEM_MASK 0x1FF |
142 | #define RIO_MODEM_BIT 0x200 | |
143 | #define RIO_UNMODEM(DEV) (MINOR(DEV) & RIO_MODEM_MASK) | |
144 | #define RIO_ISMODEM(DEV) (MINOR(DEV) & RIO_MODEM_BIT) | |
145 | #define RIO_PORT(DEV,FIRST_MAJ) ( (MAJOR(DEV) - FIRST_MAJ) * PORTS_PER_HOST) \ | |
146 | + MINOR(DEV) | |
554b7c80 AC |
147 | #define CSUM(pkt_ptr) (((u16 *)(pkt_ptr))[0] + ((u16 *)(pkt_ptr))[1] + \ |
148 | ((u16 *)(pkt_ptr))[2] + ((u16 *)(pkt_ptr))[3] + \ | |
149 | ((u16 *)(pkt_ptr))[4] + ((u16 *)(pkt_ptr))[5] + \ | |
150 | ((u16 *)(pkt_ptr))[6] + ((u16 *)(pkt_ptr))[7] + \ | |
151 | ((u16 *)(pkt_ptr))[8] + ((u16 *)(pkt_ptr))[9] ) | |
1da177e4 | 152 | |
8d8706e2 | 153 | #define RIO_LINK_ENABLE 0x80FF /* FF is a hack, mainly for Mips, to */ |
1da177e4 LT |
154 | /* prevent a really stupid race condition. */ |
155 | ||
156 | #define NOT_INITIALISED 0 | |
157 | #define INITIALISED 1 | |
158 | ||
159 | #define NOT_POLLING 0 | |
160 | #define POLLING 1 | |
161 | ||
162 | #define NOT_CHANGED 0 | |
163 | #define CHANGED 1 | |
164 | ||
165 | #define NOT_INUSE 0 | |
166 | ||
167 | #define DISCONNECT 0 | |
168 | #define CONNECT 1 | |
169 | ||
554b7c80 | 170 | /* ------ Control Codes ------ */ |
1da177e4 | 171 | |
554b7c80 AC |
172 | #define CONTROL '^' |
173 | #define IFOAD ( CONTROL + 1 ) | |
174 | #define IDENTIFY ( CONTROL + 2 ) | |
175 | #define ZOMBIE ( CONTROL + 3 ) | |
176 | #define UFOAD ( CONTROL + 4 ) | |
177 | #define IWAIT ( CONTROL + 5 ) | |
178 | ||
179 | #define IFOAD_MAGIC 0xF0AD /* of course */ | |
180 | #define ZOMBIE_MAGIC (~0xDEAD) /* not dead -> zombie */ | |
181 | #define UFOAD_MAGIC 0xD1E /* kill-your-neighbour */ | |
182 | #define IWAIT_MAGIC 0xB1DE /* Bide your time */ | |
183 | ||
184 | /* ------ Error Codes ------ */ | |
185 | ||
186 | #define E_NO_ERROR ((ushort) 0) | |
187 | ||
188 | /* ------ Free Lists ------ */ | |
1da177e4 | 189 | |
554b7c80 AC |
190 | struct rio_free_list { |
191 | u16 next; | |
192 | u16 prev; | |
193 | }; | |
1da177e4 | 194 | |
554b7c80 AC |
195 | /* NULL for card side linked lists */ |
196 | #define TPNULL ((ushort)(0x8000)) | |
197 | /* We can add another packet to a transmit queue if the packet pointer pointed | |
198 | * to by the TxAdd pointer has PKT_IN_USE clear in its address. */ | |
199 | #define PKT_IN_USE 0x1 | |
1da177e4 | 200 | |
554b7c80 | 201 | /* ------ Topology ------ */ |
1da177e4 | 202 | |
554b7c80 AC |
203 | struct Top { |
204 | u8 Unit; | |
205 | u8 Link; | |
206 | }; | |
1da177e4 | 207 | |
8d8706e2 | 208 | #endif /* __rio_h__ */ |