208 lines
5.6 KiB
C
208 lines
5.6 KiB
C
/*
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** -----------------------------------------------------------------------------
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**
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** Perle Specialix driver for Linux
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** Ported from existing RIO Driver for SCO sources.
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*
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* (C) 1990 - 1998 Specialix International Ltd., Byfleet, Surrey, UK.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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**
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** Module : rio.h
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** SID : 1.3
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** Last Modified : 11/6/98 11:34:13
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** Retrieved : 11/6/98 11:34:22
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**
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** ident @(#)rio.h 1.3
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**
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** -----------------------------------------------------------------------------
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*/
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#ifndef __rio_rio_h__
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#define __rio_rio_h__
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/*
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** Maximum numbers of things
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*/
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#define RIO_SLOTS 4 /* number of configuration slots */
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#define RIO_HOSTS 4 /* number of hosts that can be found */
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#define PORTS_PER_HOST 128 /* number of ports per host */
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#define LINKS_PER_UNIT 4 /* number of links from a host */
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#define RIO_PORTS (PORTS_PER_HOST * RIO_HOSTS) /* max. no. of ports */
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#define RTAS_PER_HOST (MAX_RUP) /* number of RTAs per host */
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#define PORTS_PER_RTA (PORTS_PER_HOST/RTAS_PER_HOST) /* ports on a rta */
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#define PORTS_PER_MODULE 4 /* number of ports on a plug-in module */
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/* number of modules on an RTA */
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#define MODULES_PER_RTA (PORTS_PER_RTA/PORTS_PER_MODULE)
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#define MAX_PRODUCT 16 /* numbr of different product codes */
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#define MAX_MODULE_TYPES 16 /* number of different types of module */
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#define RIO_CONTROL_DEV 128 /* minor number of host/control device */
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#define RIO_INVALID_MAJOR 0 /* test first host card's major no for validity */
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/*
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** number of RTAs that can be bound to a master
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*/
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#define MAX_RTA_BINDINGS (MAX_RUP * RIO_HOSTS)
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/*
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** Unit types
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*/
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#define PC_RTA16 0x90000000
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#define PC_RTA8 0xe0000000
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#define TYPE_HOST 0
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#define TYPE_RTA8 1
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#define TYPE_RTA16 2
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/*
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** Flag values returned by functions
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*/
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#define RIO_FAIL -1
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/*
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** SysPort value for something that hasn't any ports
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*/
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#define NO_PORT 0xFFFFFFFF
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/*
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** Unit ID Of all hosts
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*/
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#define HOST_ID 0
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/*
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** Break bytes into nybles
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*/
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#define LONYBLE(X) ((X) & 0xF)
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#define HINYBLE(X) (((X)>>4) & 0xF)
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/*
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** Flag values passed into some functions
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*/
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#define DONT_SLEEP 0
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#define OK_TO_SLEEP 1
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#define DONT_PRINT 1
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#define DO_PRINT 0
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#define PRINT_TO_LOG_CONS 0
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#define PRINT_TO_CONS 1
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#define PRINT_TO_LOG 2
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/*
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** Timeout has trouble with times of less than 3 ticks...
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*/
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#define MIN_TIMEOUT 3
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/*
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** Generally useful constants
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*/
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#define HUNDRED_MS ((HZ/10)?(HZ/10):1)
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#define ONE_MEG 0x100000
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#define SIXTY_FOUR_K 0x10000
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#define RIO_AT_MEM_SIZE SIXTY_FOUR_K
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#define RIO_EISA_MEM_SIZE SIXTY_FOUR_K
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#define RIO_MCA_MEM_SIZE SIXTY_FOUR_K
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#define COOK_WELL 0
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#define COOK_MEDIUM 1
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#define COOK_RAW 2
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/*
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** Pointer manipulation stuff
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** RIO_PTR takes hostp->Caddr and the offset into the DP RAM area
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** and produces a UNIX caddr_t (pointer) to the object
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** RIO_OBJ takes hostp->Caddr and a UNIX pointer to an object and
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** returns the offset into the DP RAM area.
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*/
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#define RIO_PTR(C,O) (((unsigned char __iomem *)(C))+(0xFFFF&(O)))
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#define RIO_OFF(C,O) ((unsigned char __iomem *)(O)-(unsigned char __iomem *)(C))
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/*
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** How to convert from various different device number formats:
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** DEV is a dev number, as passed to open, close etc - NOT a minor
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** number!
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**/
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#define RIO_MODEM_MASK 0x1FF
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#define RIO_MODEM_BIT 0x200
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#define RIO_UNMODEM(DEV) (MINOR(DEV) & RIO_MODEM_MASK)
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#define RIO_ISMODEM(DEV) (MINOR(DEV) & RIO_MODEM_BIT)
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#define RIO_PORT(DEV,FIRST_MAJ) ( (MAJOR(DEV) - FIRST_MAJ) * PORTS_PER_HOST) \
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+ MINOR(DEV)
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#define CSUM(pkt_ptr) (((u16 *)(pkt_ptr))[0] + ((u16 *)(pkt_ptr))[1] + \
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((u16 *)(pkt_ptr))[2] + ((u16 *)(pkt_ptr))[3] + \
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((u16 *)(pkt_ptr))[4] + ((u16 *)(pkt_ptr))[5] + \
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((u16 *)(pkt_ptr))[6] + ((u16 *)(pkt_ptr))[7] + \
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((u16 *)(pkt_ptr))[8] + ((u16 *)(pkt_ptr))[9] )
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#define RIO_LINK_ENABLE 0x80FF /* FF is a hack, mainly for Mips, to */
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/* prevent a really stupid race condition. */
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#define NOT_INITIALISED 0
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#define INITIALISED 1
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#define NOT_POLLING 0
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#define POLLING 1
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#define NOT_CHANGED 0
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#define CHANGED 1
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#define NOT_INUSE 0
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#define DISCONNECT 0
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#define CONNECT 1
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/* ------ Control Codes ------ */
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#define CONTROL '^'
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#define IFOAD ( CONTROL + 1 )
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#define IDENTIFY ( CONTROL + 2 )
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#define ZOMBIE ( CONTROL + 3 )
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#define UFOAD ( CONTROL + 4 )
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#define IWAIT ( CONTROL + 5 )
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#define IFOAD_MAGIC 0xF0AD /* of course */
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#define ZOMBIE_MAGIC (~0xDEAD) /* not dead -> zombie */
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#define UFOAD_MAGIC 0xD1E /* kill-your-neighbour */
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#define IWAIT_MAGIC 0xB1DE /* Bide your time */
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/* ------ Error Codes ------ */
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#define E_NO_ERROR ((ushort) 0)
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/* ------ Free Lists ------ */
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struct rio_free_list {
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u16 next;
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u16 prev;
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};
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/* NULL for card side linked lists */
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#define TPNULL ((ushort)(0x8000))
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/* We can add another packet to a transmit queue if the packet pointer pointed
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* to by the TxAdd pointer has PKT_IN_USE clear in its address. */
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#define PKT_IN_USE 0x1
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/* ------ Topology ------ */
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struct Top {
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u8 Unit;
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u8 Link;
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};
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#endif /* __rio_h__ */
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