| rjw | 1f88458 | 2022-01-06 17:20:42 +0800 | [diff] [blame] | 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 | #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 */ |
| 69 | enum { |
| 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 | |
| 82 | enum { |
| 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 */ |
| 106 | struct 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 */ |
| 124 | struct 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 | |