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gerrit-public.fairphone.software / kernel / msm-4.9 / 80e3c2b659515ef236f33f691ff5b22ae90ae8e4 / . / include / linux / stallion.h
blob: 13a37f137ea2169dd911551b8ac4d3f4a89c06c6 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]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
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]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 */
55typedef 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 */
70typedef 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 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;
100 stlrq_t tx;
101} stlport_t;
102
103typedef struct stlpanel {
104 unsigned long magic;
105 int panelnr;
106 int brdnr;
107 int pagenr;
108 int nrports;
109 int iobase;
110 void *uartp;
111 void (*isr)(struct stlpanel *panelp, unsigned int iobase);
112 unsigned int hwid;
113 unsigned int ackmask;
114 stlport_t *ports[STL_PORTSPERPANEL];
115} stlpanel_t;
116
117typedef struct stlbrd {
118 unsigned long magic;
119 int brdnr;
120 int brdtype;
121 int state;
122 int nrpanels;
123 int nrports;
124 int nrbnks;
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];
139 stlpanel_t *bnk2panel[STL_MAXBANKS];
140 stlpanel_t *panels[STL_MAXPANELS];
141} stlbrd_t;
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