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/drivers/char/ip2/ip2.h

https://bitbucket.org/evzijst/gittest
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  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