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1da177e4 LT |
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 | ||
94 | static 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 |