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1 /*
2  * Definitions for Intel 82593 CSMA/CD Core LAN Controller
3  * The definitions are taken from the 1992 users manual with Intel
4  * order number 297125-001.
5  *
6  * /usr/src/pc/RCS/i82593.h,v 1.1 1996/07/17 15:23:12 root Exp
7  *
8  * Copyright 1994, Anders Klemets <klemets@it.kth.se>
9  *
10  * HISTORY
11  * i82593.h,v
12  * Revision 1.4  2005/11/4  09:15:00  baroniunas
13  * Modified copyright with permission of author as follows:
14  *
15  *   "If I82539.H is the only file with my copyright statement
16  *    that is included in the Source Forge project, then you have
17  *    my approval to change the copyright statement to be a GPL
18  *    license, in the way you proposed on October 10."
19  *
20  * Revision 1.1  1996/07/17 15:23:12  root
21  * Initial revision
22  *
23  * Revision 1.3  1995/04/05  15:13:58  adj
24  * Initial alpha release
25  *
26  * Revision 1.2  1994/06/16  23:57:31  klemets
27  * Mirrored all the fields in the configuration block.
28  *
29  * Revision 1.1  1994/06/02  20:25:34  klemets
30  * Initial revision
31  *
32  *
33  */
34 #ifndef	_I82593_H
35 #define	_I82593_H
36 
37 /* Intel 82593 CSMA/CD Core LAN Controller */
38 
39 /* Port 0 Command Register definitions */
40 
41 /* Execution operations */
42 #define OP0_NOP			0	/* CHNL = 0 */
43 #define OP0_SWIT_TO_PORT_1	0	/* CHNL = 1 */
44 #define OP0_IA_SETUP		1
45 #define OP0_CONFIGURE		2
46 #define OP0_MC_SETUP		3
47 #define OP0_TRANSMIT		4
48 #define OP0_TDR			5
49 #define OP0_DUMP		6
50 #define OP0_DIAGNOSE		7
51 #define OP0_TRANSMIT_NO_CRC	9
52 #define OP0_RETRANSMIT		12
53 #define OP0_ABORT		13
54 /* Reception operations */
55 #define OP0_RCV_ENABLE		8
56 #define OP0_RCV_DISABLE		10
57 #define OP0_STOP_RCV		11
58 /* Status pointer control operations */
59 #define OP0_FIX_PTR		15	/* CHNL = 1 */
60 #define OP0_RLS_PTR		15	/* CHNL = 0 */
61 #define OP0_RESET		14
62 
63 #define CR0_CHNL		(1 << 4)	/* 0=Channel 0, 1=Channel 1 */
64 #define CR0_STATUS_0		0x00
65 #define CR0_STATUS_1		0x20
66 #define CR0_STATUS_2		0x40
67 #define CR0_STATUS_3		0x60
68 #define CR0_INT_ACK		(1 << 7)	/* 0=No ack, 1=acknowledge */
69 
70 /* Port 0 Status Register definitions */
71 
72 #define SR0_NO_RESULT		0		/* dummy */
73 #define SR0_EVENT_MASK		0x0f
74 #define SR0_IA_SETUP_DONE	1
75 #define SR0_CONFIGURE_DONE	2
76 #define SR0_MC_SETUP_DONE	3
77 #define SR0_TRANSMIT_DONE	4
78 #define SR0_TDR_DONE		5
79 #define SR0_DUMP_DONE		6
80 #define SR0_DIAGNOSE_PASSED	7
81 #define SR0_TRANSMIT_NO_CRC_DONE 9
82 #define SR0_RETRANSMIT_DONE	12
83 #define SR0_EXECUTION_ABORTED	13
84 #define SR0_END_OF_FRAME	8
85 #define SR0_RECEPTION_ABORTED	10
86 #define SR0_DIAGNOSE_FAILED	15
87 #define SR0_STOP_REG_HIT	11
88 
89 #define SR0_CHNL		(1 << 4)
90 #define SR0_EXECUTION		(1 << 5)
91 #define SR0_RECEPTION		(1 << 6)
92 #define SR0_INTERRUPT		(1 << 7)
93 #define SR0_BOTH_RX_TX		(SR0_EXECUTION | SR0_RECEPTION)
94 
95 #define SR3_EXEC_STATE_MASK	0x03
96 #define SR3_EXEC_IDLE		0
97 #define SR3_TX_ABORT_IN_PROGRESS 1
98 #define SR3_EXEC_ACTIVE		2
99 #define SR3_ABORT_IN_PROGRESS	3
100 #define SR3_EXEC_CHNL		(1 << 2)
101 #define SR3_STP_ON_NO_RSRC	(1 << 3)
102 #define SR3_RCVING_NO_RSRC	(1 << 4)
103 #define SR3_RCV_STATE_MASK	0x60
104 #define SR3_RCV_IDLE		0x00
105 #define SR3_RCV_READY		0x20
106 #define SR3_RCV_ACTIVE		0x40
107 #define SR3_RCV_STOP_IN_PROG	0x60
108 #define SR3_RCV_CHNL		(1 << 7)
109 
110 /* Port 1 Command Register definitions */
111 
112 #define OP1_NOP			0
113 #define OP1_SWIT_TO_PORT_0	1
114 #define OP1_INT_DISABLE		2
115 #define OP1_INT_ENABLE		3
116 #define OP1_SET_TS		5
117 #define OP1_RST_TS		7
118 #define OP1_POWER_DOWN		8
119 #define OP1_RESET_RING_MNGMT	11
120 #define OP1_RESET		14
121 #define OP1_SEL_RST		15
122 
123 #define CR1_STATUS_4		0x00
124 #define CR1_STATUS_5		0x20
125 #define CR1_STATUS_6		0x40
126 #define CR1_STOP_REG_UPDATE	(1 << 7)
127 
128 /* Receive frame status bits */
129 
130 #define	RX_RCLD			(1 << 0)
131 #define RX_IA_MATCH		(1 << 1)
132 #define	RX_NO_AD_MATCH		(1 << 2)
133 #define RX_NO_SFD		(1 << 3)
134 #define RX_SRT_FRM		(1 << 7)
135 #define RX_OVRRUN		(1 << 8)
136 #define RX_ALG_ERR		(1 << 10)
137 #define RX_CRC_ERR		(1 << 11)
138 #define RX_LEN_ERR		(1 << 12)
139 #define RX_RCV_OK		(1 << 13)
140 #define RX_TYP_LEN		(1 << 15)
141 
142 /* Transmit status bits */
143 
144 #define TX_NCOL_MASK		0x0f
145 #define TX_FRTL			(1 << 4)
146 #define TX_MAX_COL		(1 << 5)
147 #define TX_HRT_BEAT		(1 << 6)
148 #define TX_DEFER		(1 << 7)
149 #define TX_UND_RUN		(1 << 8)
150 #define TX_LOST_CTS		(1 << 9)
151 #define TX_LOST_CRS		(1 << 10)
152 #define TX_LTCOL		(1 << 11)
153 #define TX_OK			(1 << 13)
154 #define TX_COLL			(1 << 15)
155 
156 struct i82593_conf_block {
157   u_char fifo_limit : 4,
158   	 forgnesi   : 1,
159   	 fifo_32    : 1,
160   	 d6mod      : 1,
161   	 throttle_enb : 1;
162   u_char throttle   : 6,
163 	 cntrxint   : 1,
164 	 contin	    : 1;
165   u_char addr_len   : 3,
166   	 acloc 	    : 1,
167  	 preamb_len : 2,
168   	 loopback   : 2;
169   u_char lin_prio   : 3,
170 	 tbofstop   : 1,
171 	 exp_prio   : 3,
172 	 bof_met    : 1;
173   u_char	    : 4,
174 	 ifrm_spc   : 4;
175   u_char	    : 5,
176 	 slottim_low : 3;
177   u_char slottim_hi : 3,
178 		    : 1,
179 	 max_retr   : 4;
180   u_char prmisc     : 1,
181 	 bc_dis     : 1,
182   		    : 1,
183 	 crs_1	    : 1,
184 	 nocrc_ins  : 1,
185 	 crc_1632   : 1,
186   	 	    : 1,
187   	 crs_cdt    : 1;
188   u_char cs_filter  : 3,
189 	 crs_src    : 1,
190 	 cd_filter  : 3,
191 		    : 1;
192   u_char	    : 2,
193   	 min_fr_len : 6;
194   u_char lng_typ    : 1,
195 	 lng_fld    : 1,
196 	 rxcrc_xf   : 1,
197 	 artx	    : 1,
198 	 sarec	    : 1,
199 	 tx_jabber  : 1,	/* why is this called max_len in the manual? */
200 	 hash_1	    : 1,
201   	 lbpkpol    : 1;
202   u_char	    : 6,
203   	 fdx	    : 1,
204   	  	    : 1;
205   u_char dummy_6    : 6,	/* supposed to be ones */
206   	 mult_ia    : 1,
207   	 dis_bof    : 1;
208   u_char dummy_1    : 1,	/* supposed to be one */
209 	 tx_ifs_retrig : 2,
210 	 mc_all     : 1,
211 	 rcv_mon    : 2,
212 	 frag_acpt  : 1,
213   	 tstrttrs   : 1;
214   u_char fretx	    : 1,
215 	 runt_eop   : 1,
216 	 hw_sw_pin  : 1,
217 	 big_endn   : 1,
218 	 syncrqs    : 1,
219 	 sttlen     : 1,
220 	 tx_eop     : 1,
221   	 rx_eop	    : 1;
222   u_char rbuf_size  : 5,
223 	 rcvstop    : 1,
224   	 	    : 2;
225 };
226 
227 #define I82593_MAX_MULTICAST_ADDRESSES	128	/* Hardware hashed filter */
228 
229 #endif /* _I82593_H */
230