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 190struct 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 203struct Top { 204 u8 Unit; 205 u8 Link; 206}; 207 208#endif /* __rio_h__ */ 209