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Diffstat (limited to 'drivers/char/ip2/ip2.h')
| -rw-r--r-- | drivers/char/ip2/ip2.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/drivers/char/ip2/ip2.h b/drivers/char/ip2/ip2.h new file mode 100644 index 00000000000..936ccc53394 --- /dev/null +++ b/drivers/char/ip2/ip2.h @@ -0,0 +1,107 @@ +/******************************************************************************* +* +* (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 - since version 2.0.26. */ +#define IP2_TTY_MAJOR 71 +#define IP2_CALLOUT_MAJOR 72 +#define IP2_IPL_MAJOR 73 + +/* 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/modprobe.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/modprobe.conf and load with modprobe 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 |