1 /*****************************************************************************/
2
3 /*
4 * stallion.h -- stallion multiport serial driver.
5 *
6 * Copyright (C) 1996-1998 Stallion Technologies (support@stallion.oz.au).
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 _STALLION_H
26 #define _STALLION_H
27 /*****************************************************************************/
28
29 /*
30 * Define important driver constants here.
31 */
32 #define STL_MAXBRDS 4
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)
38
39
40 /*
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.
43 */
44
45 /*
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.
54 */
55 typedef struct {
56 char *buf;
57 char *head;
58 char *tail;
59 } stlrq_t;
60
61 /*
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.
69 */
70 typedef struct stlport {
71 unsigned long magic;
72 int portnr;
73 int panelnr;
74 int brdnr;
75 int ioaddr;
76 int uartaddr;
77 int pagenr;
78 long istate;
79 int flags;
80 int baud_base;
81 int custom_divisor;
82 int close_delay;
83 int closing_wait;
84 int refcount;
85 int openwaitcnt;
86 int brklen;
87 long session;
88 long pgrp;
89 unsigned int sigs;
90 unsigned int rxignoremsk;
91 unsigned int rxmarkmsk;
92 unsigned int imr;
93 unsigned int crenable;
94 unsigned long clk;
95 unsigned long hwid;
96 void *uartp;
97 struct tty_struct *tty;
98 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,3,0))
99 struct wait_queue *open_wait;
100 struct wait_queue *close_wait;
101 #else
102 wait_queue_head_t open_wait;
103 wait_queue_head_t close_wait;
104 #endif
105 struct termios normaltermios;
106 struct termios callouttermios;
107 struct tq_struct tqueue;
108 comstats_t stats;
109 stlrq_t tx;
110 } stlport_t;
111
112 typedef struct stlpanel {
113 unsigned long magic;
114 int panelnr;
115 int brdnr;
116 int pagenr;
117 int nrports;
118 int iobase;
119 void *uartp;
120 void (*isr)(struct stlpanel *panelp, unsigned int iobase);
121 unsigned int hwid;
122 unsigned int ackmask;
123 stlport_t *ports[STL_PORTSPERPANEL];
124 } stlpanel_t;
125
126 typedef struct stlbrd {
127 unsigned long magic;
128 int brdnr;
129 int brdtype;
130 int state;
131 int nrpanels;
132 int nrports;
133 int nrbnks;
134 int irq;
135 int irqtype;
136 void (*isr)(struct stlbrd *brdp);
137 unsigned int ioaddr1;
138 unsigned int ioaddr2;
139 unsigned int iosize1;
140 unsigned int iosize2;
141 unsigned int iostatus;
142 unsigned int ioctrl;
143 unsigned int ioctrlval;
144 unsigned int hwid;
145 unsigned long clk;
146 unsigned int bnkpageaddr[STL_MAXBANKS];
147 unsigned int bnkstataddr[STL_MAXBANKS];
148 stlpanel_t *bnk2panel[STL_MAXBANKS];
149 stlpanel_t *panels[STL_MAXPANELS];
150 } stlbrd_t;
151
152
153 /*
154 * Define MAGIC numbers used for above structures.
155 */
156 #define STL_PORTMAGIC 0x5a7182c9
157 #define STL_PANELMAGIC 0x7ef621a1
158 #define STL_BOARDMAGIC 0xa2267f52
159
160 /*****************************************************************************/
161 #endif
162
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