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Diffstat (limited to 'drivers/net/ethernet/smsc/smc9194.h')
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diff --git a/drivers/net/ethernet/smsc/smc9194.h b/drivers/net/ethernet/smsc/smc9194.h new file mode 100644 index 000000000000..cf69d0a5a1cb --- /dev/null +++ b/drivers/net/ethernet/smsc/smc9194.h | |||
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1 | /*------------------------------------------------------------------------ | ||
2 | . smc9194.h | ||
3 | . Copyright (C) 1996 by Erik Stahlman | ||
4 | . | ||
5 | . This software may be used and distributed according to the terms | ||
6 | . of the GNU General Public License, incorporated herein by reference. | ||
7 | . | ||
8 | . This file contains register information and access macros for | ||
9 | . the SMC91xxx chipset. | ||
10 | . | ||
11 | . Information contained in this file was obtained from the SMC91C94 | ||
12 | . manual from SMC. To get a copy, if you really want one, you can find | ||
13 | . information under www.smc.com in the components division. | ||
14 | . ( this thanks to advice from Donald Becker ). | ||
15 | . | ||
16 | . Authors | ||
17 | . Erik Stahlman ( erik@vt.edu ) | ||
18 | . | ||
19 | . History | ||
20 | . 01/06/96 Erik Stahlman moved definitions here from main .c file | ||
21 | . 01/19/96 Erik Stahlman polished this up some, and added better | ||
22 | . error handling | ||
23 | . | ||
24 | ---------------------------------------------------------------------------*/ | ||
25 | #ifndef _SMC9194_H_ | ||
26 | #define _SMC9194_H_ | ||
27 | |||
28 | /* I want some simple types */ | ||
29 | |||
30 | typedef unsigned char byte; | ||
31 | typedef unsigned short word; | ||
32 | typedef unsigned long int dword; | ||
33 | |||
34 | |||
35 | /* Because of bank switching, the SMC91xxx uses only 16 I/O ports */ | ||
36 | |||
37 | #define SMC_IO_EXTENT 16 | ||
38 | |||
39 | |||
40 | /*--------------------------------------------------------------- | ||
41 | . | ||
42 | . A description of the SMC registers is probably in order here, | ||
43 | . although for details, the SMC datasheet is invaluable. | ||
44 | . | ||
45 | . Basically, the chip has 4 banks of registers ( 0 to 3 ), which | ||
46 | . are accessed by writing a number into the BANK_SELECT register | ||
47 | . ( I also use a SMC_SELECT_BANK macro for this ). | ||
48 | . | ||
49 | . The banks are configured so that for most purposes, bank 2 is all | ||
50 | . that is needed for simple run time tasks. | ||
51 | -----------------------------------------------------------------------*/ | ||
52 | |||
53 | /* | ||
54 | . Bank Select Register: | ||
55 | . | ||
56 | . yyyy yyyy 0000 00xx | ||
57 | . xx = bank number | ||
58 | . yyyy yyyy = 0x33, for identification purposes. | ||
59 | */ | ||
60 | #define BANK_SELECT 14 | ||
61 | |||
62 | /* BANK 0 */ | ||
63 | |||
64 | #define TCR 0 /* transmit control register */ | ||
65 | #define TCR_ENABLE 0x0001 /* if this is 1, we can transmit */ | ||
66 | #define TCR_FDUPLX 0x0800 /* receive packets sent out */ | ||
67 | #define TCR_STP_SQET 0x1000 /* stop transmitting if Signal quality error */ | ||
68 | #define TCR_MON_CNS 0x0400 /* monitors the carrier status */ | ||
69 | #define TCR_PAD_ENABLE 0x0080 /* pads short packets to 64 bytes */ | ||
70 | |||
71 | #define TCR_CLEAR 0 /* do NOTHING */ | ||
72 | /* the normal settings for the TCR register : */ | ||
73 | /* QUESTION: do I want to enable padding of short packets ? */ | ||
74 | #define TCR_NORMAL TCR_ENABLE | ||
75 | |||
76 | |||
77 | #define EPH_STATUS 2 | ||
78 | #define ES_LINK_OK 0x4000 /* is the link integrity ok ? */ | ||
79 | |||
80 | #define RCR 4 | ||
81 | #define RCR_SOFTRESET 0x8000 /* resets the chip */ | ||
82 | #define RCR_STRIP_CRC 0x200 /* strips CRC */ | ||
83 | #define RCR_ENABLE 0x100 /* IFF this is set, we can receive packets */ | ||
84 | #define RCR_ALMUL 0x4 /* receive all multicast packets */ | ||
85 | #define RCR_PROMISC 0x2 /* enable promiscuous mode */ | ||
86 | |||
87 | /* the normal settings for the RCR register : */ | ||
88 | #define RCR_NORMAL (RCR_STRIP_CRC | RCR_ENABLE) | ||
89 | #define RCR_CLEAR 0x0 /* set it to a base state */ | ||
90 | |||
91 | #define COUNTER 6 | ||
92 | #define MIR 8 | ||
93 | #define MCR 10 | ||
94 | /* 12 is reserved */ | ||
95 | |||
96 | /* BANK 1 */ | ||
97 | #define CONFIG 0 | ||
98 | #define CFG_AUI_SELECT 0x100 | ||
99 | #define BASE 2 | ||
100 | #define ADDR0 4 | ||
101 | #define ADDR1 6 | ||
102 | #define ADDR2 8 | ||
103 | #define GENERAL 10 | ||
104 | #define CONTROL 12 | ||
105 | #define CTL_POWERDOWN 0x2000 | ||
106 | #define CTL_LE_ENABLE 0x80 | ||
107 | #define CTL_CR_ENABLE 0x40 | ||
108 | #define CTL_TE_ENABLE 0x0020 | ||
109 | #define CTL_AUTO_RELEASE 0x0800 | ||
110 | #define CTL_EPROM_ACCESS 0x0003 /* high if Eprom is being read */ | ||
111 | |||
112 | /* BANK 2 */ | ||
113 | #define MMU_CMD 0 | ||
114 | #define MC_BUSY 1 /* only readable bit in the register */ | ||
115 | #define MC_NOP 0 | ||
116 | #define MC_ALLOC 0x20 /* or with number of 256 byte packets */ | ||
117 | #define MC_RESET 0x40 | ||
118 | #define MC_REMOVE 0x60 /* remove the current rx packet */ | ||
119 | #define MC_RELEASE 0x80 /* remove and release the current rx packet */ | ||
120 | #define MC_FREEPKT 0xA0 /* Release packet in PNR register */ | ||
121 | #define MC_ENQUEUE 0xC0 /* Enqueue the packet for transmit */ | ||
122 | |||
123 | #define PNR_ARR 2 | ||
124 | #define FIFO_PORTS 4 | ||
125 | |||
126 | #define FP_RXEMPTY 0x8000 | ||
127 | #define FP_TXEMPTY 0x80 | ||
128 | |||
129 | #define POINTER 6 | ||
130 | #define PTR_READ 0x2000 | ||
131 | #define PTR_RCV 0x8000 | ||
132 | #define PTR_AUTOINC 0x4000 | ||
133 | #define PTR_AUTO_INC 0x0040 | ||
134 | |||
135 | #define DATA_1 8 | ||
136 | #define DATA_2 10 | ||
137 | #define INTERRUPT 12 | ||
138 | |||
139 | #define INT_MASK 13 | ||
140 | #define IM_RCV_INT 0x1 | ||
141 | #define IM_TX_INT 0x2 | ||
142 | #define IM_TX_EMPTY_INT 0x4 | ||
143 | #define IM_ALLOC_INT 0x8 | ||
144 | #define IM_RX_OVRN_INT 0x10 | ||
145 | #define IM_EPH_INT 0x20 | ||
146 | #define IM_ERCV_INT 0x40 /* not on SMC9192 */ | ||
147 | |||
148 | /* BANK 3 */ | ||
149 | #define MULTICAST1 0 | ||
150 | #define MULTICAST2 2 | ||
151 | #define MULTICAST3 4 | ||
152 | #define MULTICAST4 6 | ||
153 | #define MGMT 8 | ||
154 | #define REVISION 10 /* ( hi: chip id low: rev # ) */ | ||
155 | |||
156 | |||
157 | /* this is NOT on SMC9192 */ | ||
158 | #define ERCV 12 | ||
159 | |||
160 | #define CHIP_9190 3 | ||
161 | #define CHIP_9194 4 | ||
162 | #define CHIP_9195 5 | ||
163 | #define CHIP_91100 7 | ||
164 | |||
165 | static const char * chip_ids[ 15 ] = { | ||
166 | NULL, NULL, NULL, | ||
167 | /* 3 */ "SMC91C90/91C92", | ||
168 | /* 4 */ "SMC91C94", | ||
169 | /* 5 */ "SMC91C95", | ||
170 | NULL, | ||
171 | /* 7 */ "SMC91C100", | ||
172 | /* 8 */ "SMC91C100FD", | ||
173 | NULL, NULL, NULL, | ||
174 | NULL, NULL, NULL}; | ||
175 | |||
176 | /* | ||
177 | . Transmit status bits | ||
178 | */ | ||
179 | #define TS_SUCCESS 0x0001 | ||
180 | #define TS_LOSTCAR 0x0400 | ||
181 | #define TS_LATCOL 0x0200 | ||
182 | #define TS_16COL 0x0010 | ||
183 | |||
184 | /* | ||
185 | . Receive status bits | ||
186 | */ | ||
187 | #define RS_ALGNERR 0x8000 | ||
188 | #define RS_BADCRC 0x2000 | ||
189 | #define RS_ODDFRAME 0x1000 | ||
190 | #define RS_TOOLONG 0x0800 | ||
191 | #define RS_TOOSHORT 0x0400 | ||
192 | #define RS_MULTICAST 0x0001 | ||
193 | #define RS_ERRORS (RS_ALGNERR | RS_BADCRC | RS_TOOLONG | RS_TOOSHORT) | ||
194 | |||
195 | static const char * interfaces[ 2 ] = { "TP", "AUI" }; | ||
196 | |||
197 | /*------------------------------------------------------------------------- | ||
198 | . I define some macros to make it easier to do somewhat common | ||
199 | . or slightly complicated, repeated tasks. | ||
200 | --------------------------------------------------------------------------*/ | ||
201 | |||
202 | /* select a register bank, 0 to 3 */ | ||
203 | |||
204 | #define SMC_SELECT_BANK(x) { outw( x, ioaddr + BANK_SELECT ); } | ||
205 | |||
206 | /* define a small delay for the reset */ | ||
207 | #define SMC_DELAY() { inw( ioaddr + RCR );\ | ||
208 | inw( ioaddr + RCR );\ | ||
209 | inw( ioaddr + RCR ); } | ||
210 | |||
211 | /* this enables an interrupt in the interrupt mask register */ | ||
212 | #define SMC_ENABLE_INT(x) {\ | ||
213 | unsigned char mask;\ | ||
214 | SMC_SELECT_BANK(2);\ | ||
215 | mask = inb( ioaddr + INT_MASK );\ | ||
216 | mask |= (x);\ | ||
217 | outb( mask, ioaddr + INT_MASK ); \ | ||
218 | } | ||
219 | |||
220 | /* this disables an interrupt from the interrupt mask register */ | ||
221 | |||
222 | #define SMC_DISABLE_INT(x) {\ | ||
223 | unsigned char mask;\ | ||
224 | SMC_SELECT_BANK(2);\ | ||
225 | mask = inb( ioaddr + INT_MASK );\ | ||
226 | mask &= ~(x);\ | ||
227 | outb( mask, ioaddr + INT_MASK ); \ | ||
228 | } | ||
229 | |||
230 | /*---------------------------------------------------------------------- | ||
231 | . Define the interrupts that I want to receive from the card | ||
232 | . | ||
233 | . I want: | ||
234 | . IM_EPH_INT, for nasty errors | ||
235 | . IM_RCV_INT, for happy received packets | ||
236 | . IM_RX_OVRN_INT, because I have to kick the receiver | ||
237 | --------------------------------------------------------------------------*/ | ||
238 | #define SMC_INTERRUPT_MASK (IM_EPH_INT | IM_RX_OVRN_INT | IM_RCV_INT) | ||
239 | |||
240 | #endif /* _SMC_9194_H_ */ | ||
241 | |||