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