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1da177e4 LT |
1 | /* sbni.h: definitions for a Granch SBNI12 driver, version 5.0.0 |
2 | * Written 2001 Denis I.Timofeev (timofeev@granch.ru) | |
3 | * This file is distributed under the GNU GPL | |
4 | */ | |
5 | ||
6 | #ifndef SBNI_H | |
7 | #define SBNI_H | |
8 | ||
9 | #ifdef SBNI_DEBUG | |
10 | #define DP( A ) A | |
11 | #else | |
12 | #define DP( A ) | |
13 | #endif | |
14 | ||
15 | ||
16 | /* We don't have official vendor id yet... */ | |
17 | #define SBNI_PCI_VENDOR 0x55 | |
18 | #define SBNI_PCI_DEVICE 0x9f | |
19 | ||
20 | #define ISA_MODE 0x00 | |
21 | #define PCI_MODE 0x01 | |
22 | ||
23 | #define SBNI_IO_EXTENT 4 | |
24 | ||
25 | enum sbni_reg { | |
26 | CSR0 = 0, | |
27 | CSR1 = 1, | |
28 | DAT = 2 | |
29 | }; | |
30 | ||
31 | /* CSR0 mapping */ | |
32 | enum { | |
33 | BU_EMP = 0x02, | |
34 | RC_CHK = 0x04, | |
35 | CT_ZER = 0x08, | |
36 | TR_REQ = 0x10, | |
37 | TR_RDY = 0x20, | |
38 | EN_INT = 0x40, | |
39 | RC_RDY = 0x80 | |
40 | }; | |
41 | ||
42 | ||
43 | /* CSR1 mapping */ | |
44 | #define PR_RES 0x80 | |
45 | ||
46 | struct sbni_csr1 { | |
47 | unsigned rxl : 5; | |
48 | unsigned rate : 2; | |
49 | unsigned : 1; | |
50 | }; | |
51 | ||
52 | /* fields in frame header */ | |
53 | #define FRAME_ACK_MASK (unsigned short)0x7000 | |
54 | #define FRAME_LEN_MASK (unsigned short)0x03FF | |
55 | #define FRAME_FIRST (unsigned short)0x8000 | |
56 | #define FRAME_RETRY (unsigned short)0x0800 | |
57 | ||
58 | #define FRAME_SENT_BAD (unsigned short)0x4000 | |
59 | #define FRAME_SENT_OK (unsigned short)0x3000 | |
60 | ||
61 | ||
62 | /* state flags */ | |
63 | enum { | |
64 | FL_WAIT_ACK = 0x01, | |
65 | FL_NEED_RESEND = 0x02, | |
66 | FL_PREV_OK = 0x04, | |
67 | FL_SLOW_MODE = 0x08, | |
68 | FL_SECONDARY = 0x10, | |
69 | #ifdef CONFIG_SBNI_MULTILINE | |
70 | FL_SLAVE = 0x20, | |
71 | #endif | |
72 | FL_LINE_DOWN = 0x40 | |
73 | }; | |
74 | ||
75 | ||
76 | enum { | |
77 | DEFAULT_IOBASEADDR = 0x210, | |
78 | DEFAULT_INTERRUPTNUMBER = 5, | |
79 | DEFAULT_RATE = 0, | |
80 | DEFAULT_FRAME_LEN = 1012 | |
81 | }; | |
82 | ||
83 | #define DEF_RXL_DELTA -1 | |
84 | #define DEF_RXL 0xf | |
85 | ||
86 | #define SBNI_SIG 0x5a | |
87 | ||
88 | #define SBNI_MIN_LEN 60 /* Shortest Ethernet frame without FCS */ | |
89 | #define SBNI_MAX_FRAME 1023 | |
90 | #define ETHER_MAX_LEN 1518 | |
91 | ||
92 | #define SBNI_TIMEOUT (HZ/10) | |
93 | ||
94 | #define TR_ERROR_COUNT 32 | |
95 | #define CHANGE_LEVEL_START_TICKS 4 | |
96 | ||
97 | #define SBNI_MAX_NUM_CARDS 16 | |
98 | ||
99 | /* internal SBNI-specific statistics */ | |
100 | struct sbni_in_stats { | |
101 | u32 all_rx_number; | |
102 | u32 bad_rx_number; | |
103 | u32 timeout_number; | |
104 | u32 all_tx_number; | |
105 | u32 resend_tx_number; | |
106 | }; | |
107 | ||
108 | /* SBNI ioctl params */ | |
109 | #define SIOCDEVGETINSTATS SIOCDEVPRIVATE | |
110 | #define SIOCDEVRESINSTATS SIOCDEVPRIVATE+1 | |
111 | #define SIOCDEVGHWSTATE SIOCDEVPRIVATE+2 | |
112 | #define SIOCDEVSHWSTATE SIOCDEVPRIVATE+3 | |
113 | #define SIOCDEVENSLAVE SIOCDEVPRIVATE+4 | |
114 | #define SIOCDEVEMANSIPATE SIOCDEVPRIVATE+5 | |
115 | ||
116 | ||
117 | /* data packet for SIOCDEVGHWSTATE/SIOCDEVSHWSTATE ioctl requests */ | |
118 | struct sbni_flags { | |
119 | u32 rxl : 4; | |
120 | u32 rate : 2; | |
121 | u32 fixed_rxl : 1; | |
122 | u32 slow_mode : 1; | |
123 | u32 mac_addr : 24; | |
124 | }; | |
125 | ||
126 | /* | |
127 | * CRC-32 stuff | |
128 | */ | |
129 | #define CRC32(c,crc) (crc32tab[((size_t)(crc) ^ (c)) & 0xff] ^ (((crc) >> 8) & 0x00FFFFFF)) | |
130 | /* CRC generator 0xEDB88320 */ | |
131 | /* CRC remainder 0x2144DF1C */ | |
132 | /* CRC initial value 0x00000000 */ | |
133 | #define CRC32_REMAINDER 0x2144DF1C | |
134 | #define CRC32_INITIAL 0x00000000 | |
135 | ||
136 | #ifndef __initdata | |
137 | #define __initdata | |
138 | #endif | |
139 | ||
140 | #endif | |
141 |