| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 |