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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*******************************************************************************
2*
3* (c) 1998 by Computone Corporation
4*
5********************************************************************************
6*
7*
8* PACKAGE: Linux tty Device Driver for IntelliPort II family of multiport
9* serial I/O controllers.
10*
11* DESCRIPTION: Driver constants for configuration and tuning
12*
13* NOTES:
14*
15*******************************************************************************/
16#ifndef IP2_H
17#define IP2_H
18
19#include "ip2types.h"
20#include "i2cmd.h"
21
22/*************/
23/* Constants */
24/*************/
25
26/* Device major numbers - since version 2.0.26. */
27#define IP2_TTY_MAJOR 71
28#define IP2_CALLOUT_MAJOR 72
29#define IP2_IPL_MAJOR 73
30
31/* Board configuration array.
32 * This array defines the hardware irq and address for up to IP2_MAX_BOARDS
33 * (4 supported per ip2_types.h) ISA board addresses and irqs MUST be specified,
34 * PCI and EISA boards are probed for and automagicly configed
35 * iff the addresses are set to 1 and 2 respectivily.
36 * 0x0100 - 0x03f0 == ISA
37 * 1 == PCI
38 * 2 == EISA
39 * 0 == (skip this board)
40 * This array defines the hardware addresses for them. Special
41 * addresses are EISA and PCI which go sniffing for boards.
42
43 * In a multiboard system the position in the array determines which port
44 * devices are assigned to each board:
45 * board 0 is assigned ttyF0.. to ttyF63,
46 * board 1 is assigned ttyF64 to ttyF127,
47 * board 2 is assigned ttyF128 to ttyF191,
48 * board 3 is assigned ttyF192 to ttyF255.
49 *
50 * In PCI and EISA bus systems each range is mapped to card in
51 * monotonically increasing slot number order, ISA position is as specified
52 * here.
53
54 * If the irqs are ALL set to 0,0,0,0 all boards operate in
55 * polled mode. For interrupt operation ISA boards require that the IRQ be
56 * specified, while PCI and EISA boards any nonzero entry
57 * will enable interrupts using the BIOS configured irq for the board.
58 * An invalid irq entry will default to polled mode for that card and print
59 * console warning.
60
61 * When the driver is loaded as a module these setting can be overridden on the
62 * modprobe command line or on an option line in /etc/modprobe.conf.
63 * If the driver is built-in the configuration must be
64 * set here for ISA cards and address set to 1 and 2 for PCI and EISA.
65 *
66 * Here is an example that shows most if not all possibe combinations:
67
68 *static ip2config_t ip2config =
69 *{
70 * {11,1,0,0}, // irqs
71 * { // Addresses
72 * 0x0308, // Board 0, ttyF0 - ttyF63// ISA card at io=0x308, irq=11
73 * 0x0001, // Board 1, ttyF64 - ttyF127//PCI card configured by BIOS
74 * 0x0000, // Board 2, ttyF128 - ttyF191// Slot skipped
75 * 0x0002 // Board 3, ttyF192 - ttyF255//EISA card configured by BIOS
76 * // but polled not irq driven
77 * }
78 *};
79 */
80
81 /* this structure is zeroed out because the suggested method is to configure
82 * the driver as a module, set up the parameters with an options line in
83 * /etc/modprobe.conf and load with modprobe or kmod, the kernel
84 * module loader
85 */
86
87 /* This structure is NOW always initialized when the driver is initialized.
88 * Compiled in defaults MUST be added to the io and irq arrays in
89 * ip2.c. Those values are configurable from insmod parameters in the
90 * case of modules or from command line parameters (ip2=io,irq) when
91 * compiled in.
92 */
93
94static ip2config_t ip2config =
95{
96 {0,0,0,0}, // irqs
97 { // Addresses
98 /* Do NOT set compile time defaults HERE! Use the arrays in
99 ip2.c! These WILL be overwritten! =mhw= */
100 0x0000, // Board 0, ttyF0 - ttyF63
101 0x0000, // Board 1, ttyF64 - ttyF127
102 0x0000, // Board 2, ttyF128 - ttyF191
103 0x0000 // Board 3, ttyF192 - ttyF255
104 }
105};
106
107#endif