ip2.h
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上传日期:2013-02-24
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- /*******************************************************************************
- *
- * (c) 1998 by Computone Corporation
- *
- ********************************************************************************
- *
- *
- * PACKAGE: Linux tty Device Driver for IntelliPort II family of multiport
- * serial I/O controllers.
- *
- * DESCRIPTION: Driver constants for configuration and tuning
- *
- * NOTES:
- *
- *******************************************************************************/
- #ifndef IP2_H
- #define IP2_H
- #include "ip2types.h"
- #include "i2cmd.h"
- /*************/
- /* Constants */
- /*************/
- /* Device major numbers
- * The first set are the major numbers allocated from the Linux Device Registry.
- * This was expanded from 64 to 128 with version 2.0.26. If this code is built
- * under earlier versions we use majors from the LOCAL/EXPERIMENTAL range.
- */
- #if MAX_CHRDEV > 64
- # define IP2_TTY_MAJOR 71
- # define IP2_CALLOUT_MAJOR 72
- # define IP2_IPL_MAJOR 73
- #else
- # define IP2_TTY_MAJOR 60
- # define IP2_CALLOUT_MAJOR 61
- # define IP2_IPL_MAJOR 62
- #endif
- /* Board configuration array.
- * This array defines the hardware irq and address for up to IP2_MAX_BOARDS
- * (4 supported per ip2_types.h) ISA board addresses and irqs MUST be specified,
- * PCI and EISA boards are probed for and automagicly configed
- * iff the addresses are set to 1 and 2 respectivily.
- * 0x0100 - 0x03f0 == ISA
- * 1 == PCI
- * 2 == EISA
- * 0 == (skip this board)
- * This array defines the hardware addresses for them. Special
- * addresses are EISA and PCI which go sniffing for boards.
- * In a multiboard system the position in the array determines which port
- * devices are assigned to each board:
- * board 0 is assigned ttyF0.. to ttyF63,
- * board 1 is assigned ttyF64 to ttyF127,
- * board 2 is assigned ttyF128 to ttyF191,
- * board 3 is assigned ttyF192 to ttyF255.
- *
- * In PCI and EISA bus systems each range is mapped to card in
- * monotonically increasing slot number order, ISA position is as specified
- * here.
- * If the irqs are ALL set to 0,0,0,0 all boards operate in
- * polled mode. For interrupt operation ISA boards require that the IRQ be
- * specified, while PCI and EISA boards any nonzero entry
- * will enable interrupts using the BIOS configured irq for the board.
- * An invalid irq entry will default to polled mode for that card and print
- * console warning.
-
- * When the driver is loaded as a module these setting can be overridden on the
- * modprobe command line or on an option line in /etc/modules.conf.
- * If the driver is built-in the configuration must be
- * set here for ISA cards and address set to 1 and 2 for PCI and EISA.
- *
- * Here is an example that shows most if not all possibe combinations:
- *static ip2config_t ip2config =
- *{
- * {11,1,0,0}, // irqs
- * { // Addresses
- * 0x0308, // Board 0, ttyF0 - ttyF63// ISA card at io=0x308, irq=11
- * 0x0001, // Board 1, ttyF64 - ttyF127//PCI card configured by BIOS
- * 0x0000, // Board 2, ttyF128 - ttyF191// Slot skipped
- * 0x0002 // Board 3, ttyF192 - ttyF255//EISA card configured by BIOS
- * // but polled not irq driven
- * }
- *};
- */
- /* this structure is zeroed out because the suggested method is to configure
- * the driver as a module, set up the parameters with an options line in
- * /etc/modules.conf and load with modprobe, kerneld or kmod, the kernel
- * module loader
- */
- /* This structure is NOW always initialized when the driver is initialized.
- * Compiled in defaults MUST be added to the io and irq arrays in
- * ip2.c. Those values are configurable from insmod parameters in the
- * case of modules or from command line parameters (ip2=io,irq) when
- * compiled in.
- */
- static ip2config_t ip2config =
- {
- {0,0,0,0}, // irqs
- { // Addresses
- /* Do NOT set compile time defaults HERE! Use the arrays in
- ip2.c! These WILL be overwritten! =mhw= */
- 0x0000, // Board 0, ttyF0 - ttyF63
- 0x0000, // Board 1, ttyF64 - ttyF127
- 0x0000, // Board 2, ttyF128 - ttyF191
- 0x0000 // Board 3, ttyF192 - ttyF255
- }
- };
- #endif