1 /*****************************************************************************/
4 * stallion.h -- stallion multiport serial driver.
6 * Copyright (C) 1996-1998 Stallion Technologies
7 * Copyright (C) 1994-1996 Greg Ungerer.
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.
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.
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.
24 /*****************************************************************************/
27 /*****************************************************************************/
30 * Define important driver constants here.
33 #define STL_MAXPANELS 4
34 #define STL_MAXBANKS 8
35 #define STL_PORTSPERPANEL 16
36 #define STL_MAXPORTS 64
37 #define STL_MAXDEVS (STL_MAXBRDS * STL_MAXPORTS)
41 * Define a set of structures to hold all the board/panel/port info
42 * for our ports. These will be dynamically allocated as required.
46 * Define a ring queue structure for each port. This will hold the
47 * TX data waiting to be output. Characters are fed into this buffer
48 * from the line discipline (or even direct from user space!) and
49 * then fed into the UARTs during interrupts. Will use a classic ring
50 * queue here for this. The good thing about this type of ring queue
51 * is that the head and tail pointers can be updated without interrupt
52 * protection - since "write" code only needs to change the head, and
53 * interrupt code only needs to change the tail.
62 * Port, panel and board structures to hold status info about each.
63 * The board structure contains pointers to structures for each panel
64 * connected to it, and in turn each panel structure contains pointers
65 * for each port structure for each port on that panel. Note that
66 * the port structure also contains the board and panel number that it
67 * is associated with, this makes it (fairly) easy to get back to the
68 * board/panel info for a port.
87 unsigned int rxignoremsk
;
88 unsigned int rxmarkmsk
;
90 unsigned int crenable
;
100 unsigned int panelnr
;
103 unsigned int nrports
;
106 void (*isr
)(struct stlpanel
*panelp
, unsigned int iobase
);
108 unsigned int ackmask
;
109 struct stlport
*ports
[STL_PORTSPERPANEL
];
115 unsigned int brdtype
;
117 unsigned int nrpanels
;
118 unsigned int nrports
;
122 int (*isr
)(struct stlbrd
*brdp
);
123 unsigned int ioaddr1
;
124 unsigned int ioaddr2
;
125 unsigned int iosize1
;
126 unsigned int iosize2
;
127 unsigned int iostatus
;
129 unsigned int ioctrlval
;
132 unsigned int bnkpageaddr
[STL_MAXBANKS
];
133 unsigned int bnkstataddr
[STL_MAXBANKS
];
134 struct stlpanel
*bnk2panel
[STL_MAXBANKS
];
135 struct stlpanel
*panels
[STL_MAXPANELS
];
140 * Define MAGIC numbers used for above structures.
142 #define STL_PORTMAGIC 0x5a7182c9
143 #define STL_PANELMAGIC 0x7ef621a1
144 #define STL_BOARDMAGIC 0xa2267f52
146 /*****************************************************************************/
This page took 0.03271 seconds and 5 git commands to generate.