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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 | /*****************************************************************************/ /* * stallion.h -- stallion multiport serial driver. * * Copyright (C) 1996-1998 Stallion Technologies * Copyright (C) 1994-1996 Greg Ungerer. * * 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. */ /*****************************************************************************/ #ifndef _STALLION_H #define _STALLION_H /*****************************************************************************/ /* * Define important driver constants here. */ #define STL_MAXBRDS 4 #define STL_MAXPANELS 4 #define STL_MAXBANKS 8 #define STL_PORTSPERPANEL 16 #define STL_MAXPORTS 64 #define STL_MAXDEVS (STL_MAXBRDS * STL_MAXPORTS) /* * Define a set of structures to hold all the board/panel/port info * for our ports. These will be dynamically allocated as required. */ /* * Define a ring queue structure for each port. This will hold the * TX data waiting to be output. Characters are fed into this buffer * from the line discipline (or even direct from user space!) and * then fed into the UARTs during interrupts. Will use a classic ring * queue here for this. The good thing about this type of ring queue * is that the head and tail pointers can be updated without interrupt * protection - since "write" code only needs to change the head, and * interrupt code only needs to change the tail. */ struct stlrq { char *buf; char *head; char *tail; }; /* * Port, panel and board structures to hold status info about each. * The board structure contains pointers to structures for each panel * connected to it, and in turn each panel structure contains pointers * for each port structure for each port on that panel. Note that * the port structure also contains the board and panel number that it * is associated with, this makes it (fairly) easy to get back to the * board/panel info for a port. */ struct stlport { unsigned long magic; struct tty_port port; unsigned int portnr; unsigned int panelnr; unsigned int brdnr; int ioaddr; int uartaddr; unsigned int pagenr; unsigned long istate; int baud_base; int custom_divisor; int close_delay; int closing_wait; int openwaitcnt; int brklen; unsigned int sigs; unsigned int rxignoremsk; unsigned int rxmarkmsk; unsigned int imr; unsigned int crenable; unsigned long clk; unsigned long hwid; void *uartp; comstats_t stats; struct stlrq tx; }; struct stlpanel { unsigned long magic; unsigned int panelnr; unsigned int brdnr; unsigned int pagenr; unsigned int nrports; int iobase; void *uartp; void (*isr)(struct stlpanel *panelp, unsigned int iobase); unsigned int hwid; unsigned int ackmask; struct stlport *ports[STL_PORTSPERPANEL]; }; struct stlbrd { unsigned long magic; unsigned int brdnr; unsigned int brdtype; unsigned int state; unsigned int nrpanels; unsigned int nrports; unsigned int nrbnks; int irq; int irqtype; int (*isr)(struct stlbrd *brdp); unsigned int ioaddr1; unsigned int ioaddr2; unsigned int iosize1; unsigned int iosize2; unsigned int iostatus; unsigned int ioctrl; unsigned int ioctrlval; unsigned int hwid; unsigned long clk; unsigned int bnkpageaddr[STL_MAXBANKS]; unsigned int bnkstataddr[STL_MAXBANKS]; struct stlpanel *bnk2panel[STL_MAXBANKS]; struct stlpanel *panels[STL_MAXPANELS]; }; /* * Define MAGIC numbers used for above structures. */ #define STL_PORTMAGIC 0x5a7182c9 #define STL_PANELMAGIC 0x7ef621a1 #define STL_BOARDMAGIC 0xa2267f52 /*****************************************************************************/ #endif |