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
25enum sbni_reg {
26	CSR0 = 0,
27	CSR1 = 1,
28	DAT  = 2
29};
30
31/* CSR0 mapping */
32enum {
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
46struct sbni_csr1 {
47#ifdef __LITTLE_ENDIAN_BITFIELD
48	u8 rxl	: 5;
49	u8 rate	: 2;
50	u8 	: 1;
51#else
52	u8 	: 1;
53	u8 rate	: 2;
54	u8 rxl	: 5;
55#endif
56};
57
58/* fields in frame header */
59#define FRAME_ACK_MASK  (unsigned short)0x7000
60#define FRAME_LEN_MASK  (unsigned short)0x03FF
61#define FRAME_FIRST     (unsigned short)0x8000
62#define FRAME_RETRY     (unsigned short)0x0800
63
64#define FRAME_SENT_BAD  (unsigned short)0x4000
65#define FRAME_SENT_OK   (unsigned short)0x3000
66
67
68/* state flags */
69enum {
70	FL_WAIT_ACK    = 0x01,
71	FL_NEED_RESEND = 0x02,
72	FL_PREV_OK     = 0x04,
73	FL_SLOW_MODE   = 0x08,
74	FL_SECONDARY   = 0x10,
75#ifdef CONFIG_SBNI_MULTILINE
76	FL_SLAVE       = 0x20,
77#endif
78	FL_LINE_DOWN   = 0x40
79};
80
81
82enum {
83	DEFAULT_IOBASEADDR = 0x210,
84	DEFAULT_INTERRUPTNUMBER = 5,
85	DEFAULT_RATE = 0,
86	DEFAULT_FRAME_LEN = 1012
87};
88
89#define DEF_RXL_DELTA	-1
90#define DEF_RXL		0xf
91
92#define SBNI_SIG 0x5a
93
94#define	SBNI_MIN_LEN	60	/* Shortest Ethernet frame without FCS */
95#define SBNI_MAX_FRAME	1023
96#define ETHER_MAX_LEN	1518
97
98#define SBNI_TIMEOUT	(HZ/10)
99
100#define TR_ERROR_COUNT	32
101#define CHANGE_LEVEL_START_TICKS 4
102
103#define SBNI_MAX_NUM_CARDS	16
104
105/* internal SBNI-specific statistics */
106struct sbni_in_stats {
107	u32	all_rx_number;
108	u32	bad_rx_number;
109	u32	timeout_number;
110	u32	all_tx_number;
111	u32	resend_tx_number;
112};
113
114/* SBNI ioctl params */
115#define SIOCDEVGETINSTATS 	SIOCDEVPRIVATE
116#define SIOCDEVRESINSTATS 	SIOCDEVPRIVATE+1
117#define SIOCDEVGHWSTATE   	SIOCDEVPRIVATE+2
118#define SIOCDEVSHWSTATE   	SIOCDEVPRIVATE+3
119#define SIOCDEVENSLAVE  	SIOCDEVPRIVATE+4
120#define SIOCDEVEMANSIPATE  	SIOCDEVPRIVATE+5
121
122
123/* data packet for SIOCDEVGHWSTATE/SIOCDEVSHWSTATE ioctl requests */
124struct sbni_flags {
125	u32	rxl		: 4;
126	u32	rate		: 2;
127	u32	fixed_rxl	: 1;
128	u32	slow_mode	: 1;
129	u32	mac_addr	: 24;
130};
131
132/*
133 * CRC-32 stuff
134 */
135#define CRC32(c,crc) (crc32tab[((size_t)(crc) ^ (c)) & 0xff] ^ (((crc) >> 8) & 0x00FFFFFF))
136      /* CRC generator 0xEDB88320 */
137      /* CRC remainder 0x2144DF1C */
138      /* CRC initial value 0x00000000 */
139#define CRC32_REMAINDER 0x2144DF1C
140#define CRC32_INITIAL 0x00000000
141
142#ifndef __initdata
143#define __initdata
144#endif
145
146#endif
147
148