1/*******************************************************************************
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
108