sbni.h
上传用户:lgb322
上传日期:2013-02-24
资源大小:30529k
文件大小:3k
- /* sbni.h: definitions for a Granch SBNI12 driver, version 5.0.0
- * Written 2001 Denis I.Timofeev (timofeev@granch.ru)
- * This file is distributed under the GNU GPL
- */
- #ifndef SBNI_H
- #define SBNI_H
- #if SBNI_DEBUG
- #define DP( A ) A
- #else
- #define DP( A )
- #endif
- /* We don't have official vendor id yet... */
- #define SBNI_PCI_VENDOR 0x55
- #define SBNI_PCI_DEVICE 0x9f
- #define ISA_MODE 0x00
- #define PCI_MODE 0x01
- #define SBNI_IO_EXTENT 4
- enum sbni_reg {
- CSR0 = 0,
- CSR1 = 1,
- DAT = 2
- };
- /* CSR0 mapping */
- enum {
- BU_EMP = 0x02,
- RC_CHK = 0x04,
- CT_ZER = 0x08,
- TR_REQ = 0x10,
- TR_RDY = 0x20,
- EN_INT = 0x40,
- RC_RDY = 0x80
- };
- /* CSR1 mapping */
- #define PR_RES 0x80
- struct sbni_csr1 {
- unsigned rxl : 5;
- unsigned rate : 2;
- unsigned : 1;
- };
- /* fields in frame header */
- #define FRAME_ACK_MASK (unsigned short)0x7000
- #define FRAME_LEN_MASK (unsigned short)0x03FF
- #define FRAME_FIRST (unsigned short)0x8000
- #define FRAME_RETRY (unsigned short)0x0800
- #define FRAME_SENT_BAD (unsigned short)0x4000
- #define FRAME_SENT_OK (unsigned short)0x3000
- /* state flags */
- enum {
- FL_WAIT_ACK = 0x01,
- FL_NEED_RESEND = 0x02,
- FL_PREV_OK = 0x04,
- FL_SLOW_MODE = 0x08,
- FL_SECONDARY = 0x10,
- #ifdef CONFIG_SBNI_MULTILINE
- FL_SLAVE = 0x20,
- #endif
- FL_LINE_DOWN = 0x40
- };
- enum {
- DEFAULT_IOBASEADDR = 0x210,
- DEFAULT_INTERRUPTNUMBER = 5,
- DEFAULT_RATE = 0,
- DEFAULT_FRAME_LEN = 1012
- };
- #define DEF_RXL_DELTA -1
- #define DEF_RXL 0xf
- #define SBNI_SIG 0x5a
- #define SBNI_MIN_LEN 60 /* Shortest Ethernet frame without FCS */
- #define SBNI_MAX_FRAME 1023
- #define ETHER_MAX_LEN 1518
- #define SBNI_TIMEOUT (HZ/10)
- #define TR_ERROR_COUNT 32
- #define CHANGE_LEVEL_START_TICKS 4
- #define SBNI_MAX_NUM_CARDS 16
- /* internal SBNI-specific statistics */
- struct sbni_in_stats {
- u32 all_rx_number;
- u32 bad_rx_number;
- u32 timeout_number;
- u32 all_tx_number;
- u32 resend_tx_number;
- };
- /* SBNI ioctl params */
- #define SIOCDEVGETINSTATS SIOCDEVPRIVATE
- #define SIOCDEVRESINSTATS SIOCDEVPRIVATE+1
- #define SIOCDEVGHWSTATE SIOCDEVPRIVATE+2
- #define SIOCDEVSHWSTATE SIOCDEVPRIVATE+3
- #define SIOCDEVENSLAVE SIOCDEVPRIVATE+4
- #define SIOCDEVEMANSIPATE SIOCDEVPRIVATE+5
- /* data packet for SIOCDEVGHWSTATE/SIOCDEVSHWSTATE ioctl requests */
- struct sbni_flags {
- u32 rxl : 4;
- u32 rate : 2;
- u32 fixed_rxl : 1;
- u32 slow_mode : 1;
- u32 mac_addr : 24;
- };
- /*
- * CRC-32 stuff
- */
- #define CRC32(c,crc) (crc32tab[((size_t)(crc) ^ (c)) & 0xff] ^ (((crc) >> 8) & 0x00FFFFFF))
- /* CRC generator 0xEDB88320 */
- /* CRC remainder 0x2144DF1C */
- /* CRC initial value 0x00000000 */
- #define CRC32_REMAINDER 0x2144DF1C
- #define CRC32_INITIAL 0x00000000
- #ifndef __initdata
- #define __initdata
- #endif
- #endif