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1.1 root 1: /*-
2: * Copyright (c) 1991 The Regents of the University of California.
3: * All rights reserved.
4: *
5: * This code is derived from software contributed to Berkeley by
6: * Computer Consoles Inc.
7: *
8: * Redistribution and use in source and binary forms, with or without
9: * modification, are permitted provided that the following conditions
10: * are met:
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. All advertising materials mentioning features or use of this software
17: * must display the following acknowledgement:
18: * This product includes software developed by the University of
19: * California, Berkeley and its contributors.
20: * 4. Neither the name of the University nor the names of its contributors
21: * may be used to endorse or promote products derived from this software
22: * without specific prior written permission.
23: *
24: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
25: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
28: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
29: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
30: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
31: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
32: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
33: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34: * SUCH DAMAGE.
35: *
36: * @(#)if_enpreg.h 7.2 (Berkeley) 5/8/91
37: */
38:
39: /* Copyright (c) 1984 by Communication Machinery Corporation
40: *
41: * This file contains material which is proprietary to
42: * Communication Machinery Corporation (CMC) and which
43: * may not be divulged without the written permission
44: * of CMC.
45: *
46: * ENP-10 Ram Definition
47: *
48: * 3/15/85 Jon Phares
49: * Update 7/10/85 S. Holmgren
50: * ENP-10 update 7/21/85 J. Mullen
51: * ENP-20 update 8/11/85 J. Mullen
52: * Mods for CCI TAHOE system 8/14/85 J. Mullen
53: */
54:
55: #define K *1024
56:
57: struct ether_addr {
58: u_char ea_addr[6];
59: };
60:
61: typedef struct ethlist {
62: int e_listsize; /* active addr entries */
63: struct ether_addr e_baseaddr; /* addr lance is working with */
64: struct ether_addr e_addrs[16]; /* possible addresses */
65: } ETHLIST;
66:
67: typedef struct {
68: u_long e_xmit_successful; /* Successful transmissions */
69: u_long e_mult_retry; /* multiple retries on xmit */
70: u_long e_one_retry; /* single retries */
71: u_long e_fail_retry; /* too many retries */
72: u_long e_deferrals; /* xmit delayed 'cuz cable busy */
73: u_long e_xmit_buff_err; /* xmit data chaining failed --
74: "can't happen" */
75: u_long e_silo_underrun; /* transmit data fetch failed */
76: u_long e_late_coll; /* collision after xmit */
77: u_long e_lost_carrier;
78: u_long e_babble; /* xmit length > 1518 */
79: u_long e_collision;
80: u_long e_xmit_mem_err;
81: u_long e_rcv_successful; /* good receptions */
82: u_long e_rcv_missed; /* no recv buff available */
83: u_long e_crc_err; /* checksum failed */
84: u_long e_frame_err; /* crc error & data length != 0 mod 8 */
85: u_long e_rcv_buff_err; /* rcv data chain failure --
86: "can't happen" */
87: u_long e_silo_overrun; /* receive data store failed */
88: u_long e_rcv_mem_err;
89: } ENPSTAT;
90:
91: typedef struct RING {
92: short r_rdidx;
93: short r_wrtidx;
94: short r_size;
95: short r_pad;
96: int r_slot[1];
97: } RING;
98:
99: typedef struct RING32 {
100: short r_rdidx;
101: short r_wrtidx;
102: short r_size;
103: short r_pad; /* to make VAXen happy */
104: int r_slot[32];
105: } RING32;
106:
107: /*
108: * ENP Ram data layout
109: */
110:
111: /*
112: * Note: paged window (4 K) is identity mapped by ENP kernel to provide
113: * 124 K contiguous RAM (as reflected in RAM_SIZE)
114: */
115: #define RAM_WINDOW (128 K)
116: #define IOACCESS_WINDOW (512)
117: #define FIXED_WINDOW (RAM_WINDOW - IOACCESS_WINDOW)
118: #define RAMROM_SWAP (4 K)
119: #define RAM_SIZE (FIXED_WINDOW - RAMROM_SWAP)
120:
121: #define HOST_RAMSIZE (48 K)
122: #define ENP_RAMSIZE (20 K)
123:
124: typedef struct iow20 {
125: char pad0;
126: char hst2enp_interrupt;
127: char pad1[510];
128: } iow20;
129:
130: struct enpdevice {
131: #ifdef notdef
132: char enp_ram_rom[4 K];
133: #endif notdef
134: union {
135: char all_ram[RAM_SIZE];
136: struct {
137: u_int t_go;
138: u_int t_pstart;
139: } t;
140: struct {
141: char nram[RAM_SIZE - (HOST_RAMSIZE + ENP_RAMSIZE)];
142: char hram[HOST_RAMSIZE];
143: char kram[ENP_RAMSIZE];
144: } u_ram;
145: struct {
146: char pad7[0x100]; /* starts 0x1100 - 0x2000 */
147: short e_enpstate; /* 1102 */
148: short e_enpmode; /* 1104 */
149: int e_enpbase; /* 1104 */
150: int e_enprun; /* 1108 */
151: u_short e_intrvec;
152: u_short e_dummy[3];
153: RING32 h_toenp; /* 110C */
154: RING32 h_hostfree;
155: RING32 e_tohost;
156: RING32 e_enpfree;
157: ENPSTAT e_stat;
158: ETHLIST e_netaddr;
159: } iface;
160: } enp_u;
161: iow20 enp_iow;
162: };
163:
164: #define enp_ram enp_u.all_ram
165: #define enp_nram enp_u.u_ram.nram
166: #define enp_hram enp_u.u_ram.hram
167: #define enp_kram enp_u.u_ram.kram
168: #define enp_go enp_u.t.t_go
169: #define enp_prog_start enp_u.t.t_pstart
170: #define enp_intrvec enp_u.iface.e_intrvec
171: #define enp_state enp_u.iface.e_enpstate
172: #define enp_mode enp_u.iface.e_enpmode
173: #define enp_base enp_u.iface.e_enpbase
174: #define enp_enprun enp_u.iface.e_enprun
175: #define enp_toenp enp_u.iface.h_toenp
176: #define enp_hostfree enp_u.iface.h_hostfree
177: #define enp_tohost enp_u.iface.e_tohost
178: #define enp_enpfree enp_u.iface.e_enpfree
179: #define enp_freembuf enp_u.iface.h_freembuf
180: #define enp_stat enp_u.iface.e_stat
181: #define enp_addr enp_u.iface.e_netaddr
182:
183: #define ENPVAL 0xff /* enp_iow.hst2enp_interrupt poke value */
184: #define RESETVAL 0x00 /* enp_iow.enp2hst_clear_intr poke value */
185:
186: #define INTR_ENP(addr) (addr->enp_iow.hst2enp_interrupt = ENPVAL)
187:
188: #if ENP == 30
189: #define ACK_ENP_INTR(addr) (addr->enp_iow.enp2hst_clear_intr = RESETVAL)
190: #define IS_ENP_INTR(addr) (addr->enp_iow.enp2hst_clear_intr&0x80)
191: #endif
192:
193: #ifdef notdef
194: #define RESET_ENP(addr) (addr->enp_iow.hst2enp_reset = 01)
195: #else
196: #ifdef lint
197: #define RESET_ENP(addr) ((addr) = (addr))
198: #else
199: #define RESET_ENP(addr)
200: #endif lint
201: #endif notdef
202:
203: #ifdef tahoe
204: #define ENP_GO(addr,start) { \
205: int v = start; \
206: enpcopy((u_char *)&v, (u_char *)&addr->enp_prog_start, sizeof(v) ); \
207: v = 0x80800000; \
208: enpcopy((u_char *)&v, (u_char *)&addr->enp_go, sizeof(v) ); \
209: }
210: #else
211: #define ENP_GO(addr,start,intvec ) { \
212: addr->enp_prog_start = (u_int)(start); \
213: addr->enp_intrvec = (u_short) intvec; \
214: addr->enp_go = 0x80800000; \
215: }
216: #endif tahoe
217:
218: /*
219: * State bits
220: */
221: #define S_ENPRESET 01 /* enp is in reset state */
222: #define S_ENPRUN 02 /* enp is in run state */
223:
224: /*
225: * Mode bits
226: */
227: #define E_SWAP16 0x1 /* swap two octets within 16 */
228: #define E_SWAP32 0x2 /* swap 16s within 32 */
229: #define E_SWAPRD 0x4 /* swap on read */
230: #define E_SWAPWRT 0x8 /* swap on write */
231: #define E_DMA 0x10 /* enp does data moving */
232:
233: #define E_EXAM_LIST 0x80000000 /* enp should examine addrlist */
234: #define E_ADDR_SUPP 0x40000000 /* enp should use supplied addr */
235:
236: /*
237: * Download ioctl definitions
238: */
239: #define ENPIOGO _IO('S',1) /* start the enp */
240: #define ENPIORESET _IO('S',2) /* reset the enp */
241:
242: /*
243: * The ENP Data Buffer Structure
244: */
245: typedef struct BCB {
246: struct BCB *b_link;
247: short b_stat;
248: short b_len;
249: u_char *b_addr;
250: short b_msglen;
251: short b_reserved;
252: } BCB;
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