diff options
Diffstat (limited to 'drivers/net/ni52.h')
-rw-r--r-- | drivers/net/ni52.h | 310 |
1 files changed, 310 insertions, 0 deletions
diff --git a/drivers/net/ni52.h b/drivers/net/ni52.h new file mode 100644 index 000000000000..68f19175afba --- /dev/null +++ b/drivers/net/ni52.h | |||
@@ -0,0 +1,310 @@ | |||
1 | /* | ||
2 | * Intel i82586 Ethernet definitions | ||
3 | * | ||
4 | * This is an extension to the Linux operating system, and is covered by the | ||
5 | * same GNU General Public License that covers that work. | ||
6 | * | ||
7 | * copyrights (c) 1994 by Michael Hipp (hippm@informatik.uni-tuebingen.de) | ||
8 | * | ||
9 | * I have done a look in the following sources: | ||
10 | * crynwr-packet-driver by Russ Nelson | ||
11 | * Garret A. Wollman's i82586-driver for BSD | ||
12 | */ | ||
13 | |||
14 | |||
15 | #define NI52_RESET 0 /* writing to this address, resets the i82586 */ | ||
16 | #define NI52_ATTENTION 1 /* channel attention, kick the 586 */ | ||
17 | #define NI52_TENA 3 /* 2-5 possibly wrong, Xmit enable */ | ||
18 | #define NI52_TDIS 2 /* Xmit disable */ | ||
19 | #define NI52_INTENA 5 /* Interrupt enable */ | ||
20 | #define NI52_INTDIS 4 /* Interrupt disable */ | ||
21 | #define NI52_MAGIC1 6 /* dunno exact function */ | ||
22 | #define NI52_MAGIC2 7 /* dunno exact function */ | ||
23 | |||
24 | #define NI52_MAGICVAL1 0x00 /* magic-values for ni5210 card */ | ||
25 | #define NI52_MAGICVAL2 0x55 | ||
26 | |||
27 | /* | ||
28 | * where to find the System Configuration Pointer (SCP) | ||
29 | */ | ||
30 | #define SCP_DEFAULT_ADDRESS 0xfffff4 | ||
31 | |||
32 | |||
33 | /* | ||
34 | * System Configuration Pointer Struct | ||
35 | */ | ||
36 | |||
37 | struct scp_struct | ||
38 | { | ||
39 | unsigned short zero_dum0; /* has to be zero */ | ||
40 | unsigned char sysbus; /* 0=16Bit,1=8Bit */ | ||
41 | unsigned char zero_dum1; /* has to be zero for 586 */ | ||
42 | unsigned short zero_dum2; | ||
43 | unsigned short zero_dum3; | ||
44 | char *iscp; /* pointer to the iscp-block */ | ||
45 | }; | ||
46 | |||
47 | |||
48 | /* | ||
49 | * Intermediate System Configuration Pointer (ISCP) | ||
50 | */ | ||
51 | struct iscp_struct | ||
52 | { | ||
53 | unsigned char busy; /* 586 clears after successful init */ | ||
54 | unsigned char zero_dummy; /* has to be zero */ | ||
55 | unsigned short scb_offset; /* pointeroffset to the scb_base */ | ||
56 | char *scb_base; /* base-address of all 16-bit offsets */ | ||
57 | }; | ||
58 | |||
59 | /* | ||
60 | * System Control Block (SCB) | ||
61 | */ | ||
62 | struct scb_struct | ||
63 | { | ||
64 | unsigned char rus; | ||
65 | unsigned char cus; | ||
66 | unsigned char cmd_ruc; /* command word: RU part */ | ||
67 | unsigned char cmd_cuc; /* command word: CU part & ACK */ | ||
68 | unsigned short cbl_offset; /* pointeroffset, command block list */ | ||
69 | unsigned short rfa_offset; /* pointeroffset, receive frame area */ | ||
70 | unsigned short crc_errs; /* CRC-Error counter */ | ||
71 | unsigned short aln_errs; /* alignmenterror counter */ | ||
72 | unsigned short rsc_errs; /* Resourceerror counter */ | ||
73 | unsigned short ovrn_errs; /* OVerrunerror counter */ | ||
74 | }; | ||
75 | |||
76 | /* | ||
77 | * possible command values for the command word | ||
78 | */ | ||
79 | #define RUC_MASK 0x0070 /* mask for RU commands */ | ||
80 | #define RUC_NOP 0x0000 /* NOP-command */ | ||
81 | #define RUC_START 0x0010 /* start RU */ | ||
82 | #define RUC_RESUME 0x0020 /* resume RU after suspend */ | ||
83 | #define RUC_SUSPEND 0x0030 /* suspend RU */ | ||
84 | #define RUC_ABORT 0x0040 /* abort receiver operation immediately */ | ||
85 | |||
86 | #define CUC_MASK 0x07 /* mask for CU command */ | ||
87 | #define CUC_NOP 0x00 /* NOP-command */ | ||
88 | #define CUC_START 0x01 /* start execution of 1. cmd on the CBL */ | ||
89 | #define CUC_RESUME 0x02 /* resume after suspend */ | ||
90 | #define CUC_SUSPEND 0x03 /* Suspend CU */ | ||
91 | #define CUC_ABORT 0x04 /* abort command operation immediately */ | ||
92 | |||
93 | #define ACK_MASK 0xf0 /* mask for ACK command */ | ||
94 | #define ACK_CX 0x80 /* acknowledges STAT_CX */ | ||
95 | #define ACK_FR 0x40 /* ack. STAT_FR */ | ||
96 | #define ACK_CNA 0x20 /* ack. STAT_CNA */ | ||
97 | #define ACK_RNR 0x10 /* ack. STAT_RNR */ | ||
98 | |||
99 | /* | ||
100 | * possible status values for the status word | ||
101 | */ | ||
102 | #define STAT_MASK 0xf0 /* mask for cause of interrupt */ | ||
103 | #define STAT_CX 0x80 /* CU finished cmd with its I bit set */ | ||
104 | #define STAT_FR 0x40 /* RU finished receiving a frame */ | ||
105 | #define STAT_CNA 0x20 /* CU left active state */ | ||
106 | #define STAT_RNR 0x10 /* RU left ready state */ | ||
107 | |||
108 | #define CU_STATUS 0x7 /* CU status, 0=idle */ | ||
109 | #define CU_SUSPEND 0x1 /* CU is suspended */ | ||
110 | #define CU_ACTIVE 0x2 /* CU is active */ | ||
111 | |||
112 | #define RU_STATUS 0x70 /* RU status, 0=idle */ | ||
113 | #define RU_SUSPEND 0x10 /* RU suspended */ | ||
114 | #define RU_NOSPACE 0x20 /* RU no resources */ | ||
115 | #define RU_READY 0x40 /* RU is ready */ | ||
116 | |||
117 | /* | ||
118 | * Receive Frame Descriptor (RFD) | ||
119 | */ | ||
120 | struct rfd_struct | ||
121 | { | ||
122 | unsigned char stat_low; /* status word */ | ||
123 | unsigned char stat_high; /* status word */ | ||
124 | unsigned char rfd_sf; /* 82596 mode only */ | ||
125 | unsigned char last; /* Bit15,Last Frame on List / Bit14,suspend */ | ||
126 | unsigned short next; /* linkoffset to next RFD */ | ||
127 | unsigned short rbd_offset; /* pointeroffset to RBD-buffer */ | ||
128 | unsigned char dest[6]; /* ethernet-address, destination */ | ||
129 | unsigned char source[6]; /* ethernet-address, source */ | ||
130 | unsigned short length; /* 802.3 frame-length */ | ||
131 | unsigned short zero_dummy; /* dummy */ | ||
132 | }; | ||
133 | |||
134 | #define RFD_LAST 0x80 /* last: last rfd in the list */ | ||
135 | #define RFD_SUSP 0x40 /* last: suspend RU after */ | ||
136 | #define RFD_COMPL 0x80 | ||
137 | #define RFD_OK 0x20 | ||
138 | #define RFD_BUSY 0x40 | ||
139 | #define RFD_ERR_LEN 0x10 /* Length error (if enabled length-checking */ | ||
140 | #define RFD_ERR_CRC 0x08 /* CRC error */ | ||
141 | #define RFD_ERR_ALGN 0x04 /* Alignment error */ | ||
142 | #define RFD_ERR_RNR 0x02 /* status: receiver out of resources */ | ||
143 | #define RFD_ERR_OVR 0x01 /* DMA Overrun! */ | ||
144 | |||
145 | #define RFD_ERR_FTS 0x0080 /* Frame to short */ | ||
146 | #define RFD_ERR_NEOP 0x0040 /* No EOP flag (for bitstuffing only) */ | ||
147 | #define RFD_ERR_TRUN 0x0020 /* (82596 only/SF mode) indicates truncated frame */ | ||
148 | #define RFD_MATCHADD 0x0002 /* status: Destinationaddress !matches IA (only 82596) */ | ||
149 | #define RFD_COLLDET 0x0001 /* Detected collision during reception */ | ||
150 | |||
151 | /* | ||
152 | * Receive Buffer Descriptor (RBD) | ||
153 | */ | ||
154 | struct rbd_struct | ||
155 | { | ||
156 | unsigned short status; /* status word,number of used bytes in buff */ | ||
157 | unsigned short next; /* pointeroffset to next RBD */ | ||
158 | char *buffer; /* receive buffer address pointer */ | ||
159 | unsigned short size; /* size of this buffer */ | ||
160 | unsigned short zero_dummy; /* dummy */ | ||
161 | }; | ||
162 | |||
163 | #define RBD_LAST 0x8000 /* last buffer */ | ||
164 | #define RBD_USED 0x4000 /* this buffer has data */ | ||
165 | #define RBD_MASK 0x3fff /* size-mask for length */ | ||
166 | |||
167 | /* | ||
168 | * Statusvalues for Commands/RFD | ||
169 | */ | ||
170 | #define STAT_COMPL 0x8000 /* status: frame/command is complete */ | ||
171 | #define STAT_BUSY 0x4000 /* status: frame/command is busy */ | ||
172 | #define STAT_OK 0x2000 /* status: frame/command is ok */ | ||
173 | |||
174 | /* | ||
175 | * Action-Commands | ||
176 | */ | ||
177 | #define CMD_NOP 0x0000 /* NOP */ | ||
178 | #define CMD_IASETUP 0x0001 /* initial address setup command */ | ||
179 | #define CMD_CONFIGURE 0x0002 /* configure command */ | ||
180 | #define CMD_MCSETUP 0x0003 /* MC setup command */ | ||
181 | #define CMD_XMIT 0x0004 /* transmit command */ | ||
182 | #define CMD_TDR 0x0005 /* time domain reflectometer (TDR) command */ | ||
183 | #define CMD_DUMP 0x0006 /* dump command */ | ||
184 | #define CMD_DIAGNOSE 0x0007 /* diagnose command */ | ||
185 | |||
186 | /* | ||
187 | * Action command bits | ||
188 | */ | ||
189 | #define CMD_LAST 0x8000 /* indicates last command in the CBL */ | ||
190 | #define CMD_SUSPEND 0x4000 /* suspend CU after this CB */ | ||
191 | #define CMD_INT 0x2000 /* generate interrupt after execution */ | ||
192 | |||
193 | /* | ||
194 | * NOP - command | ||
195 | */ | ||
196 | struct nop_cmd_struct | ||
197 | { | ||
198 | unsigned short cmd_status; /* status of this command */ | ||
199 | unsigned short cmd_cmd; /* the command itself (+bits) */ | ||
200 | unsigned short cmd_link; /* offsetpointer to next command */ | ||
201 | }; | ||
202 | |||
203 | /* | ||
204 | * IA Setup command | ||
205 | */ | ||
206 | struct iasetup_cmd_struct | ||
207 | { | ||
208 | unsigned short cmd_status; | ||
209 | unsigned short cmd_cmd; | ||
210 | unsigned short cmd_link; | ||
211 | unsigned char iaddr[6]; | ||
212 | }; | ||
213 | |||
214 | /* | ||
215 | * Configure command | ||
216 | */ | ||
217 | struct configure_cmd_struct | ||
218 | { | ||
219 | unsigned short cmd_status; | ||
220 | unsigned short cmd_cmd; | ||
221 | unsigned short cmd_link; | ||
222 | unsigned char byte_cnt; /* size of the config-cmd */ | ||
223 | unsigned char fifo; /* fifo/recv monitor */ | ||
224 | unsigned char sav_bf; /* save bad frames (bit7=1)*/ | ||
225 | unsigned char adr_len; /* adr_len(0-2),al_loc(3),pream(4-5),loopbak(6-7)*/ | ||
226 | unsigned char priority; /* lin_prio(0-2),exp_prio(4-6),bof_metd(7) */ | ||
227 | unsigned char ifs; /* inter frame spacing */ | ||
228 | unsigned char time_low; /* slot time low */ | ||
229 | unsigned char time_high; /* slot time high(0-2) and max. retries(4-7) */ | ||
230 | unsigned char promisc; /* promisc-mode(0) , et al (1-7) */ | ||
231 | unsigned char carr_coll; /* carrier(0-3)/collision(4-7) stuff */ | ||
232 | unsigned char fram_len; /* minimal frame len */ | ||
233 | unsigned char dummy; /* dummy */ | ||
234 | }; | ||
235 | |||
236 | /* | ||
237 | * Multicast Setup command | ||
238 | */ | ||
239 | struct mcsetup_cmd_struct | ||
240 | { | ||
241 | unsigned short cmd_status; | ||
242 | unsigned short cmd_cmd; | ||
243 | unsigned short cmd_link; | ||
244 | unsigned short mc_cnt; /* number of bytes in the MC-List */ | ||
245 | unsigned char mc_list[0][6]; /* pointer to 6 bytes entries */ | ||
246 | }; | ||
247 | |||
248 | /* | ||
249 | * DUMP command | ||
250 | */ | ||
251 | struct dump_cmd_struct | ||
252 | { | ||
253 | unsigned short cmd_status; | ||
254 | unsigned short cmd_cmd; | ||
255 | unsigned short cmd_link; | ||
256 | unsigned short dump_offset; /* pointeroffset to DUMP space */ | ||
257 | }; | ||
258 | |||
259 | /* | ||
260 | * transmit command | ||
261 | */ | ||
262 | struct transmit_cmd_struct | ||
263 | { | ||
264 | unsigned short cmd_status; | ||
265 | unsigned short cmd_cmd; | ||
266 | unsigned short cmd_link; | ||
267 | unsigned short tbd_offset; /* pointeroffset to TBD */ | ||
268 | unsigned char dest[6]; /* destination address of the frame */ | ||
269 | unsigned short length; /* user defined: 802.3 length / Ether type */ | ||
270 | }; | ||
271 | |||
272 | #define TCMD_ERRMASK 0x0fa0 | ||
273 | #define TCMD_MAXCOLLMASK 0x000f | ||
274 | #define TCMD_MAXCOLL 0x0020 | ||
275 | #define TCMD_HEARTBEAT 0x0040 | ||
276 | #define TCMD_DEFERRED 0x0080 | ||
277 | #define TCMD_UNDERRUN 0x0100 | ||
278 | #define TCMD_LOSTCTS 0x0200 | ||
279 | #define TCMD_NOCARRIER 0x0400 | ||
280 | #define TCMD_LATECOLL 0x0800 | ||
281 | |||
282 | struct tdr_cmd_struct | ||
283 | { | ||
284 | unsigned short cmd_status; | ||
285 | unsigned short cmd_cmd; | ||
286 | unsigned short cmd_link; | ||
287 | unsigned short status; | ||
288 | }; | ||
289 | |||
290 | #define TDR_LNK_OK 0x8000 /* No link problem identified */ | ||
291 | #define TDR_XCVR_PRB 0x4000 /* indicates a transceiver problem */ | ||
292 | #define TDR_ET_OPN 0x2000 /* open, no correct termination */ | ||
293 | #define TDR_ET_SRT 0x1000 /* TDR detected a short circuit */ | ||
294 | #define TDR_TIMEMASK 0x07ff /* mask for the time field */ | ||
295 | |||
296 | /* | ||
297 | * Transmit Buffer Descriptor (TBD) | ||
298 | */ | ||
299 | struct tbd_struct | ||
300 | { | ||
301 | unsigned short size; /* size + EOF-Flag(15) */ | ||
302 | unsigned short next; /* pointeroffset to next TBD */ | ||
303 | char *buffer; /* pointer to buffer */ | ||
304 | }; | ||
305 | |||
306 | #define TBD_LAST 0x8000 /* EOF-Flag, indicates last buffer in list */ | ||
307 | |||
308 | |||
309 | |||
310 | |||