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Diffstat (limited to 'drivers/char/rio/rio.h')
| -rw-r--r-- | drivers/char/rio/rio.h | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/drivers/char/rio/rio.h b/drivers/char/rio/rio.h new file mode 100644 index 0000000..1bf3622 --- /dev/null +++ b/drivers/char/rio/rio.h @@ -0,0 +1,208 @@ +/* +** ----------------------------------------------------------------------------- +** +** Perle Specialix driver for Linux +** Ported from existing RIO Driver for SCO sources. + * + * (C) 1990 - 1998 Specialix International Ltd., Byfleet, Surrey, UK. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +** +** Module : rio.h +** SID : 1.3 +** Last Modified : 11/6/98 11:34:13 +** Retrieved : 11/6/98 11:34:22 +** +** ident @(#)rio.h 1.3 +** +** ----------------------------------------------------------------------------- +*/ + +#ifndef __rio_rio_h__ +#define __rio_rio_h__ + +/* +** Maximum numbers of things +*/ +#define RIO_SLOTS 4 /* number of configuration slots */ +#define RIO_HOSTS 4 /* number of hosts that can be found */ +#define PORTS_PER_HOST 128 /* number of ports per host */ +#define LINKS_PER_UNIT 4 /* number of links from a host */ +#define RIO_PORTS (PORTS_PER_HOST * RIO_HOSTS) /* max. no. of ports */ +#define RTAS_PER_HOST (MAX_RUP) /* number of RTAs per host */ +#define PORTS_PER_RTA (PORTS_PER_HOST/RTAS_PER_HOST) /* ports on a rta */ +#define PORTS_PER_MODULE 4 /* number of ports on a plug-in module */ + /* number of modules on an RTA */ +#define MODULES_PER_RTA (PORTS_PER_RTA/PORTS_PER_MODULE) +#define MAX_PRODUCT 16 /* numbr of different product codes */ +#define MAX_MODULE_TYPES 16 /* number of different types of module */ + +#define RIO_CONTROL_DEV 128 /* minor number of host/control device */ +#define RIO_INVALID_MAJOR 0 /* test first host card's major no for validity */ + +/* +** number of RTAs that can be bound to a master +*/ +#define MAX_RTA_BINDINGS (MAX_RUP * RIO_HOSTS) + +/* +** Unit types +*/ +#define PC_RTA16 0x90000000 +#define PC_RTA8 0xe0000000 +#define TYPE_HOST 0 +#define TYPE_RTA8 1 +#define TYPE_RTA16 2 + +/* +** Flag values returned by functions +*/ + +#define RIO_FAIL -1 + +/* +** SysPort value for something that hasn't any ports +*/ +#define NO_PORT 0xFFFFFFFF + +/* +** Unit ID Of all hosts +*/ +#define HOST_ID 0 + +/* +** Break bytes into nybles +*/ +#define LONYBLE(X) ((X) & 0xF) +#define HINYBLE(X) (((X)>>4) & 0xF) + +/* +** Flag values passed into some functions +*/ +#define DONT_SLEEP 0 +#define OK_TO_SLEEP 1 + +#define DONT_PRINT 1 +#define DO_PRINT 0 + +#define PRINT_TO_LOG_CONS 0 +#define PRINT_TO_CONS 1 +#define PRINT_TO_LOG 2 + +/* +** Timeout has trouble with times of less than 3 ticks... +*/ +#define MIN_TIMEOUT 3 + +/* +** Generally useful constants +*/ + +#define HUNDRED_MS ((HZ/10)?(HZ/10):1) +#define ONE_MEG 0x100000 +#define SIXTY_FOUR_K 0x10000 + +#define RIO_AT_MEM_SIZE SIXTY_FOUR_K +#define RIO_EISA_MEM_SIZE SIXTY_FOUR_K +#define RIO_MCA_MEM_SIZE SIXTY_FOUR_K + +#define COOK_WELL 0 +#define COOK_MEDIUM 1 +#define COOK_RAW 2 + +/* +** Pointer manipulation stuff +** RIO_PTR takes hostp->Caddr and the offset into the DP RAM area +** and produces a UNIX caddr_t (pointer) to the object +** RIO_OBJ takes hostp->Caddr and a UNIX pointer to an object and +** returns the offset into the DP RAM area. +*/ +#define RIO_PTR(C,O) (((unsigned char __iomem *)(C))+(0xFFFF&(O))) +#define RIO_OFF(C,O) ((unsigned char __iomem *)(O)-(unsigned char __iomem *)(C)) + +/* +** How to convert from various different device number formats: +** DEV is a dev number, as passed to open, close etc - NOT a minor +** number! +**/ + +#define RIO_MODEM_MASK 0x1FF +#define RIO_MODEM_BIT 0x200 +#define RIO_UNMODEM(DEV) (MINOR(DEV) & RIO_MODEM_MASK) +#define RIO_ISMODEM(DEV) (MINOR(DEV) & RIO_MODEM_BIT) +#define RIO_PORT(DEV,FIRST_MAJ) ( (MAJOR(DEV) - FIRST_MAJ) * PORTS_PER_HOST) \ + + MINOR(DEV) +#define CSUM(pkt_ptr) (((u16 *)(pkt_ptr))[0] + ((u16 *)(pkt_ptr))[1] + \ + ((u16 *)(pkt_ptr))[2] + ((u16 *)(pkt_ptr))[3] + \ + ((u16 *)(pkt_ptr))[4] + ((u16 *)(pkt_ptr))[5] + \ + ((u16 *)(pkt_ptr))[6] + ((u16 *)(pkt_ptr))[7] + \ + ((u16 *)(pkt_ptr))[8] + ((u16 *)(pkt_ptr))[9] ) + +#define RIO_LINK_ENABLE 0x80FF /* FF is a hack, mainly for Mips, to */ + /* prevent a really stupid race condition. */ + +#define NOT_INITIALISED 0 +#define INITIALISED 1 + +#define NOT_POLLING 0 +#define POLLING 1 + +#define NOT_CHANGED 0 +#define CHANGED 1 + +#define NOT_INUSE 0 + +#define DISCONNECT 0 +#define CONNECT 1 + +/* ------ Control Codes ------ */ + +#define CONTROL '^' +#define IFOAD ( CONTROL + 1 ) +#define IDENTIFY ( CONTROL + 2 ) +#define ZOMBIE ( CONTROL + 3 ) +#define UFOAD ( CONTROL + 4 ) +#define IWAIT ( CONTROL + 5 ) + +#define IFOAD_MAGIC 0xF0AD /* of course */ +#define ZOMBIE_MAGIC (~0xDEAD) /* not dead -> zombie */ +#define UFOAD_MAGIC 0xD1E /* kill-your-neighbour */ +#define IWAIT_MAGIC 0xB1DE /* Bide your time */ + +/* ------ Error Codes ------ */ + +#define E_NO_ERROR ((ushort) 0) + +/* ------ Free Lists ------ */ + +struct rio_free_list { + u16 next; + u16 prev; +}; + +/* NULL for card side linked lists */ +#define TPNULL ((ushort)(0x8000)) +/* We can add another packet to a transmit queue if the packet pointer pointed + * to by the TxAdd pointer has PKT_IN_USE clear in its address. */ +#define PKT_IN_USE 0x1 + +/* ------ Topology ------ */ + +struct Top { + u8 Unit; + u8 Link; +}; + +#endif /* __rio_h__ */ |
