1 /*****************************************************************************/ 2 3 /* 4 * istallion.h -- stallion intelligent multiport serial driver. 5 * 6 * Copyright (C) 1996-1998 Stallion Technologies 7 * Copyright (C) 1994-1996 Greg Ungerer. 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 24 /*****************************************************************************/ 25 #ifndef _ISTALLION_H 26 #define _ISTALLION_H 27 /*****************************************************************************/ 28 29 /* 30 * Define important driver constants here. 31 */ 32 #define STL_MAXBRDS 4 33 #define STL_MAXPANELS 4 34 #define STL_MAXPORTS 64 35 #define STL_MAXCHANS (STL_MAXPORTS + 1) 36 #define STL_MAXDEVS (STL_MAXBRDS * STL_MAXPORTS) 37 38 39 /* 40 * Define a set of structures to hold all the board/panel/port info 41 * for our ports. These will be dynamically allocated as required at 42 * driver initialization time. 43 */ 44 45 /* 46 * Port and board structures to hold status info about each object. 47 * The board structure contains pointers to structures for each port 48 * connected to it. Panels are not distinguished here, since 49 * communication with the slave board will always be on a per port 50 * basis. 51 */ 52 struct stliport { 53 unsigned long magic; 54 struct tty_port port; 55 unsigned int portnr; 56 unsigned int panelnr; 57 unsigned int brdnr; 58 unsigned long state; 59 unsigned int devnr; 60 int baud_base; 61 int custom_divisor; 62 int closing_wait; 63 int rc; 64 int argsize; 65 void *argp; 66 unsigned int rxmarkmsk; 67 wait_queue_head_t raw_wait; 68 struct asysigs asig; 69 unsigned long addr; 70 unsigned long rxoffset; 71 unsigned long txoffset; 72 unsigned long sigs; 73 unsigned long pflag; 74 unsigned int rxsize; 75 unsigned int txsize; 76 unsigned char reqbit; 77 unsigned char portidx; 78 unsigned char portbit; 79 }; 80 81 /* 82 * Use a structure of function pointers to do board level operations. 83 * These include, enable/disable, paging shared memory, interrupting, etc. 84 */ 85 struct stlibrd { 86 unsigned long magic; 87 unsigned int brdnr; 88 unsigned int brdtype; 89 unsigned int state; 90 unsigned int nrpanels; 91 unsigned int nrports; 92 unsigned int nrdevs; 93 unsigned int iobase; 94 int iosize; 95 unsigned long memaddr; 96 void __iomem *membase; 97 unsigned long memsize; 98 int pagesize; 99 int hostoffset; 100 int slaveoffset; 101 int bitsize; 102 int enabval; 103 unsigned int panels[STL_MAXPANELS]; 104 int panelids[STL_MAXPANELS]; 105 void (*init)(struct stlibrd *brdp); 106 void (*enable)(struct stlibrd *brdp); 107 void (*reenable)(struct stlibrd *brdp); 108 void (*disable)(struct stlibrd *brdp); 109 void __iomem *(*getmemptr)(struct stlibrd *brdp, unsigned long offset, int line); 110 void (*intr)(struct stlibrd *brdp); 111 void (*reset)(struct stlibrd *brdp); 112 struct stliport *ports[STL_MAXPORTS]; 113 }; 114 115 116 /* 117 * Define MAGIC numbers used for above structures. 118 */ 119 #define STLI_PORTMAGIC 0xe671c7a1 120 #define STLI_BOARDMAGIC 0x4bc6c825 121 122 /*****************************************************************************/ 123 #endif 124