1 /* 2 ** ----------------------------------------------------------------------------- 3 ** 4 ** Perle Specialix driver for Linux 5 ** Ported from existing RIO Driver for SCO sources. 6 * 7 * (C) 1990 - 1998 Specialix International Ltd., Byfleet, Surrey, UK. 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or 12 * (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but WITHOUT ANY WARRANTY; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 22 ** 23 ** Module : rio.h 24 ** SID : 1.3 25 ** Last Modified : 11/6/98 11:34:13 26 ** Retrieved : 11/6/98 11:34:22 27 ** 28 ** ident @(#)rio.h 1.3 29 ** 30 ** ----------------------------------------------------------------------------- 31 */ 32 33 #ifndef __rio_rio_h__ 34 #define __rio_rio_h__ 35 36 /* 37 ** Maximum numbers of things 38 */ 39 #define RIO_SLOTS 4 /* number of configuration slots */ 40 #define RIO_HOSTS 4 /* number of hosts that can be found */ 41 #define PORTS_PER_HOST 128 /* number of ports per host */ 42 #define LINKS_PER_UNIT 4 /* number of links from a host */ 43 #define RIO_PORTS (PORTS_PER_HOST * RIO_HOSTS) /* max. no. of ports */ 44 #define RTAS_PER_HOST (MAX_RUP) /* number of RTAs per host */ 45 #define PORTS_PER_RTA (PORTS_PER_HOST/RTAS_PER_HOST) /* ports on a rta */ 46 #define PORTS_PER_MODULE 4 /* number of ports on a plug-in module */ 47 /* number of modules on an RTA */ 48 #define MODULES_PER_RTA (PORTS_PER_RTA/PORTS_PER_MODULE) 49 #define MAX_PRODUCT 16 /* numbr of different product codes */ 50 #define MAX_MODULE_TYPES 16 /* number of different types of module */ 51 52 #define RIO_CONTROL_DEV 128 /* minor number of host/control device */ 53 #define RIO_INVALID_MAJOR 0 /* test first host card's major no for validity */ 54 55 /* 56 ** number of RTAs that can be bound to a master 57 */ 58 #define MAX_RTA_BINDINGS (MAX_RUP * RIO_HOSTS) 59 60 /* 61 ** Unit types 62 */ 63 #define PC_RTA16 0x90000000 64 #define PC_RTA8 0xe0000000 65 #define TYPE_HOST 0 66 #define TYPE_RTA8 1 67 #define TYPE_RTA16 2 68 69 /* 70 ** Flag values returned by functions 71 */ 72 73 #define RIO_FAIL -1 74 75 /* 76 ** SysPort value for something that hasn't any ports 77 */ 78 #define NO_PORT 0xFFFFFFFF 79 80 /* 81 ** Unit ID Of all hosts 82 */ 83 #define HOST_ID 0 84 85 /* 86 ** Break bytes into nybles 87 */ 88 #define LONYBLE(X) ((X) & 0xF) 89 #define HINYBLE(X) (((X)>>4) & 0xF) 90 91 /* 92 ** Flag values passed into some functions 93 */ 94 #define DONT_SLEEP 0 95 #define OK_TO_SLEEP 1 96 97 #define DONT_PRINT 1 98 #define DO_PRINT 0 99 100 #define PRINT_TO_LOG_CONS 0 101 #define PRINT_TO_CONS 1 102 #define PRINT_TO_LOG 2 103 104 /* 105 ** Timeout has trouble with times of less than 3 ticks... 106 */ 107 #define MIN_TIMEOUT 3 108 109 /* 110 ** Generally useful constants 111 */ 112 113 #define HUNDRED_MS ((HZ/10)?(HZ/10):1) 114 #define ONE_MEG 0x100000 115 #define SIXTY_FOUR_K 0x10000 116 117 #define RIO_AT_MEM_SIZE SIXTY_FOUR_K 118 #define RIO_EISA_MEM_SIZE SIXTY_FOUR_K 119 #define RIO_MCA_MEM_SIZE SIXTY_FOUR_K 120 121 #define COOK_WELL 0 122 #define COOK_MEDIUM 1 123 #define COOK_RAW 2 124 125 /* 126 ** Pointer manipulation stuff 127 ** RIO_PTR takes hostp->Caddr and the offset into the DP RAM area 128 ** and produces a UNIX caddr_t (pointer) to the object 129 ** RIO_OBJ takes hostp->Caddr and a UNIX pointer to an object and 130 ** returns the offset into the DP RAM area. 131 */ 132 #define RIO_PTR(C,O) (((unsigned char __iomem *)(C))+(0xFFFF&(O))) 133 #define RIO_OFF(C,O) ((unsigned char __iomem *)(O)-(unsigned char __iomem *)(C)) 134 135 /* 136 ** How to convert from various different device number formats: 137 ** DEV is a dev number, as passed to open, close etc - NOT a minor 138 ** number! 139 **/ 140 141 #define RIO_MODEM_MASK 0x1FF 142 #define RIO_MODEM_BIT 0x200 143 #define RIO_UNMODEM(DEV) (MINOR(DEV) & RIO_MODEM_MASK) 144 #define RIO_ISMODEM(DEV) (MINOR(DEV) & RIO_MODEM_BIT) 145 #define RIO_PORT(DEV,FIRST_MAJ) ( (MAJOR(DEV) - FIRST_MAJ) * PORTS_PER_HOST) \ 146 + MINOR(DEV) 147 #define CSUM(pkt_ptr) (((u16 *)(pkt_ptr))[0] + ((u16 *)(pkt_ptr))[1] + \ 148 ((u16 *)(pkt_ptr))[2] + ((u16 *)(pkt_ptr))[3] + \ 149 ((u16 *)(pkt_ptr))[4] + ((u16 *)(pkt_ptr))[5] + \ 150 ((u16 *)(pkt_ptr))[6] + ((u16 *)(pkt_ptr))[7] + \ 151 ((u16 *)(pkt_ptr))[8] + ((u16 *)(pkt_ptr))[9] ) 152 153 #define RIO_LINK_ENABLE 0x80FF /* FF is a hack, mainly for Mips, to */ 154 /* prevent a really stupid race condition. */ 155 156 #define NOT_INITIALISED 0 157 #define INITIALISED 1 158 159 #define NOT_POLLING 0 160 #define POLLING 1 161 162 #define NOT_CHANGED 0 163 #define CHANGED 1 164 165 #define NOT_INUSE 0 166 167 #define DISCONNECT 0 168 #define CONNECT 1 169 170 /* ------ Control Codes ------ */ 171 172 #define CONTROL '^' 173 #define IFOAD ( CONTROL + 1 ) 174 #define IDENTIFY ( CONTROL + 2 ) 175 #define ZOMBIE ( CONTROL + 3 ) 176 #define UFOAD ( CONTROL + 4 ) 177 #define IWAIT ( CONTROL + 5 ) 178 179 #define IFOAD_MAGIC 0xF0AD /* of course */ 180 #define ZOMBIE_MAGIC (~0xDEAD) /* not dead -> zombie */ 181 #define UFOAD_MAGIC 0xD1E /* kill-your-neighbour */ 182 #define IWAIT_MAGIC 0xB1DE /* Bide your time */ 183 184 /* ------ Error Codes ------ */ 185 186 #define E_NO_ERROR ((ushort) 0) 187 188 /* ------ Free Lists ------ */ 189 190 struct rio_free_list { 191 u16 next; 192 u16 prev; 193 }; 194 195 /* NULL for card side linked lists */ 196 #define TPNULL ((ushort)(0x8000)) 197 /* We can add another packet to a transmit queue if the packet pointer pointed 198 * to by the TxAdd pointer has PKT_IN_USE clear in its address. */ 199 #define PKT_IN_USE 0x1 200 201 /* ------ Topology ------ */ 202 203 struct Top { 204 u8 Unit; 205 u8 Link; 206 }; 207 208 #endif /* __rio_h__ */ 209