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1da177e4 LT |
1 | /*****************************************************************************/ |
2 | ||
3 | /* | |
4 | * stallion.h -- stallion 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 | ||
1da177e4 LT |
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 | */ | |
ca7ed0f2 | 55 | struct stlrq { |
1da177e4 LT |
56 | char *buf; |
57 | char *head; | |
58 | char *tail; | |
ca7ed0f2 | 59 | }; |
1da177e4 LT |
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 | */ | |
ca7ed0f2 | 70 | struct stlport { |
1da177e4 | 71 | unsigned long magic; |
6b2c9457 JS |
72 | unsigned int portnr; |
73 | unsigned int panelnr; | |
74 | unsigned int brdnr; | |
1da177e4 LT |
75 | int ioaddr; |
76 | int uartaddr; | |
6b2c9457 | 77 | unsigned int pagenr; |
1da177e4 LT |
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 | unsigned int sigs; | |
88 | unsigned int rxignoremsk; | |
89 | unsigned int rxmarkmsk; | |
90 | unsigned int imr; | |
91 | unsigned int crenable; | |
92 | unsigned long clk; | |
93 | unsigned long hwid; | |
94 | void *uartp; | |
95 | struct tty_struct *tty; | |
96 | wait_queue_head_t open_wait; | |
97 | wait_queue_head_t close_wait; | |
98 | struct work_struct tqueue; | |
99 | comstats_t stats; | |
ca7ed0f2 JS |
100 | struct stlrq tx; |
101 | }; | |
1da177e4 | 102 | |
ca7ed0f2 | 103 | struct stlpanel { |
1da177e4 | 104 | unsigned long magic; |
6b2c9457 JS |
105 | unsigned int panelnr; |
106 | unsigned int brdnr; | |
107 | unsigned int pagenr; | |
108 | unsigned int nrports; | |
1da177e4 LT |
109 | int iobase; |
110 | void *uartp; | |
111 | void (*isr)(struct stlpanel *panelp, unsigned int iobase); | |
112 | unsigned int hwid; | |
113 | unsigned int ackmask; | |
ca7ed0f2 JS |
114 | struct stlport *ports[STL_PORTSPERPANEL]; |
115 | }; | |
1da177e4 | 116 | |
ca7ed0f2 | 117 | struct stlbrd { |
1da177e4 | 118 | unsigned long magic; |
6b2c9457 JS |
119 | unsigned int brdnr; |
120 | unsigned int brdtype; | |
121 | unsigned int state; | |
122 | unsigned int nrpanels; | |
123 | unsigned int nrports; | |
124 | unsigned int nrbnks; | |
1da177e4 LT |
125 | int irq; |
126 | int irqtype; | |
127 | int (*isr)(struct stlbrd *brdp); | |
128 | unsigned int ioaddr1; | |
129 | unsigned int ioaddr2; | |
130 | unsigned int iosize1; | |
131 | unsigned int iosize2; | |
132 | unsigned int iostatus; | |
133 | unsigned int ioctrl; | |
134 | unsigned int ioctrlval; | |
135 | unsigned int hwid; | |
136 | unsigned long clk; | |
137 | unsigned int bnkpageaddr[STL_MAXBANKS]; | |
138 | unsigned int bnkstataddr[STL_MAXBANKS]; | |
ca7ed0f2 JS |
139 | struct stlpanel *bnk2panel[STL_MAXBANKS]; |
140 | struct stlpanel *panels[STL_MAXPANELS]; | |
141 | }; | |
1da177e4 LT |
142 | |
143 | ||
144 | /* | |
145 | * Define MAGIC numbers used for above structures. | |
146 | */ | |
147 | #define STL_PORTMAGIC 0x5a7182c9 | |
148 | #define STL_PANELMAGIC 0x7ef621a1 | |
149 | #define STL_BOARDMAGIC 0xa2267f52 | |
150 | ||
151 | /*****************************************************************************/ | |
152 | #endif |