| 1 |
1275 |
phoenix |
/*
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| 2 |
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* This software may be used and distributed according to the terms
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| 3 |
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* of the GNU General Public License, incorporated herein by reference.
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| 4 |
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*
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| 5 |
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*/
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| 6 |
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| 7 |
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#include <linux/module.h>
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| 8 |
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#include <linux/init.h>
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| 9 |
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#include "includes.h"
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| 10 |
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#include "hardware.h"
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| 11 |
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#include "card.h"
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| 12 |
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| 13 |
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MODULE_DESCRIPTION("ISDN4Linux: Driver for Spellcaster card");
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| 14 |
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MODULE_AUTHOR("Spellcaster Telecommunications Inc.");
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| 15 |
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MODULE_LICENSE("GPL");
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| 16 |
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MODULE_PARM( io, "1-" __MODULE_STRING(MAX_CARDS) "i");
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| 17 |
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MODULE_PARM(irq, "1-" __MODULE_STRING(MAX_CARDS) "i");
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| 18 |
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MODULE_PARM(ram, "1-" __MODULE_STRING(MAX_CARDS) "i");
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| 19 |
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MODULE_PARM(do_reset, "i");
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| 20 |
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| 21 |
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board *adapter[MAX_CARDS];
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| 22 |
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int cinst;
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| 23 |
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| 24 |
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static char devname[] = "scX";
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| 25 |
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const char version[] = "2.0b1";
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| 26 |
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| 27 |
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const char *boardname[] = { "DataCommute/BRI", "DataCommute/PRI", "TeleCommute/BRI" };
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| 28 |
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| 29 |
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/* insmod set parameters */
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| 30 |
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static unsigned int io[] = {0,0,0,0};
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| 31 |
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static unsigned char irq[] = {0,0,0,0};
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| 32 |
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static unsigned long ram[] = {0,0,0,0};
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| 33 |
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static int do_reset = 0;
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| 34 |
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| 35 |
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static int sup_irq[] = { 11, 10, 9, 5, 12, 14, 7, 3, 4, 6 };
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| 36 |
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#define MAX_IRQS 10
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| 37 |
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| 38 |
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extern void interrupt_handler(int, void *, struct pt_regs *);
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| 39 |
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extern int sndpkt(int, int, int, struct sk_buff *);
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| 40 |
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extern int command(isdn_ctrl *);
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| 41 |
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extern int indicate_status(int, int, ulong, char*);
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| 42 |
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extern int reset(int);
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| 43 |
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| 44 |
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int identify_board(unsigned long, unsigned int);
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| 45 |
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| 46 |
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int irq_supported(int irq_x)
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| 47 |
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{
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| 48 |
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int i;
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| 49 |
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for(i=0 ; i < MAX_IRQS ; i++) {
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| 50 |
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if(sup_irq[i] == irq_x)
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| 51 |
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return 1;
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| 52 |
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}
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| 53 |
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return 0;
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| 54 |
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}
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| 55 |
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| 56 |
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static int __init sc_init(void)
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| 57 |
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{
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| 58 |
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int b = -1;
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| 59 |
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int i, j;
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| 60 |
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int status = -ENODEV;
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| 61 |
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| 62 |
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unsigned long memsize = 0;
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| 63 |
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unsigned long features = 0;
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| 64 |
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isdn_if *interface;
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| 65 |
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unsigned char channels;
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| 66 |
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unsigned char pgport;
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| 67 |
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unsigned long magic;
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| 68 |
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int model;
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| 69 |
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int last_base = IOBASE_MIN;
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| 70 |
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int probe_exhasted = 0;
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| 71 |
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| 72 |
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#ifdef MODULE
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| 73 |
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pr_info("SpellCaster ISA ISDN Adapter Driver rev. %s Loaded\n", version);
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| 74 |
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#else
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| 75 |
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pr_info("SpellCaster ISA ISDN Adapter Driver rev. %s\n", version);
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| 76 |
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#endif
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| 77 |
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pr_info("Copyright (C) 1996 SpellCaster Telecommunications Inc.\n");
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| 78 |
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| 79 |
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while(b++ < MAX_CARDS - 1) {
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| 80 |
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pr_debug("Probing for adapter #%d\n", b);
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| 81 |
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/*
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| 82 |
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* Initialize reusable variables
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| 83 |
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*/
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| 84 |
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model = -1;
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| 85 |
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magic = 0;
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| 86 |
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channels = 0;
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| 87 |
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pgport = 0;
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| 88 |
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| 89 |
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/*
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| 90 |
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* See if we should probe for IO base
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| 91 |
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*/
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| 92 |
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pr_debug("I/O Base for board %d is 0x%x, %s probe\n", b, io[b],
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| 93 |
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io[b] == 0 ? "will" : "won't");
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| 94 |
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if(io[b]) {
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| 95 |
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/*
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| 96 |
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* No, I/O Base has been provided
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| 97 |
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*/
|
| 98 |
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for (i = 0 ; i < MAX_IO_REGS - 1 ; i++) {
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| 99 |
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if(check_region(io[b] + i * 0x400, 1)) {
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| 100 |
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pr_debug("check_region for 0x%x failed\n", io[b] + i * 0x400);
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| 101 |
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io[b] = 0;
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| 102 |
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break;
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| 103 |
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}
|
| 104 |
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}
|
| 105 |
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| 106 |
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/*
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| 107 |
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* Confirm the I/O Address with a test
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| 108 |
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*/
|
| 109 |
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if(io[b] == 0) {
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| 110 |
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pr_debug("I/O Address 0x%x is in use.\n");
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| 111 |
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continue;
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| 112 |
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}
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| 113 |
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| 114 |
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outb(0x18, io[b] + 0x400 * EXP_PAGE0);
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| 115 |
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if(inb(io[b] + 0x400 * EXP_PAGE0) != 0x18) {
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| 116 |
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pr_debug("I/O Base 0x%x fails test\n");
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| 117 |
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continue;
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| 118 |
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}
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| 119 |
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}
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| 120 |
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else {
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| 121 |
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/*
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| 122 |
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* Yes, probe for I/O Base
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| 123 |
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*/
|
| 124 |
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if(probe_exhasted) {
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| 125 |
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pr_debug("All probe addresses exhasted, skipping\n");
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| 126 |
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continue;
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| 127 |
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}
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| 128 |
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pr_debug("Probing for I/O...\n");
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| 129 |
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for (i = last_base ; i <= IOBASE_MAX ; i += IOBASE_OFFSET) {
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| 130 |
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int found_io = 1;
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| 131 |
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if (i == IOBASE_MAX) {
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| 132 |
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probe_exhasted = 1; /* No more addresses to probe */
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| 133 |
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pr_debug("End of Probes\n");
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| 134 |
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}
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| 135 |
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last_base = i + IOBASE_OFFSET;
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| 136 |
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pr_debug(" checking 0x%x...", i);
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| 137 |
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for ( j = 0 ; j < MAX_IO_REGS - 1 ; j++) {
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| 138 |
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if(check_region(i + j * 0x400, 1)) {
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| 139 |
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pr_debug("Failed\n");
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| 140 |
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found_io = 0;
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| 141 |
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break;
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| 142 |
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}
|
| 143 |
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}
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| 144 |
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|
| 145 |
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if(found_io) {
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| 146 |
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io[b] = i;
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| 147 |
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outb(0x18, io[b] + 0x400 * EXP_PAGE0);
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| 148 |
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if(inb(io[b] + 0x400 * EXP_PAGE0) != 0x18) {
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| 149 |
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pr_debug("Failed by test\n");
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| 150 |
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continue;
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| 151 |
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}
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| 152 |
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pr_debug("Passed\n");
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| 153 |
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break;
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| 154 |
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}
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| 155 |
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}
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| 156 |
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if(probe_exhasted) {
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| 157 |
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continue;
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| 158 |
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}
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| 159 |
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}
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| 160 |
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| 161 |
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/*
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| 162 |
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* See if we should probe for shared RAM
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| 163 |
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*/
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| 164 |
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if(do_reset) {
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| 165 |
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pr_debug("Doing a SAFE probe reset\n");
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| 166 |
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outb(0xFF, io[b] + RESET_OFFSET);
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| 167 |
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set_current_state(TASK_INTERRUPTIBLE);
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| 168 |
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schedule_timeout(milliseconds(10000));
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| 169 |
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}
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| 170 |
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pr_debug("RAM Base for board %d is 0x%x, %s probe\n", b, ram[b],
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| 171 |
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ram[b] == 0 ? "will" : "won't");
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| 172 |
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| 173 |
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if(ram[b]) {
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| 174 |
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/*
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| 175 |
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* No, the RAM base has been provided
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| 176 |
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* Just look for a signature and ID the
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| 177 |
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* board model
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| 178 |
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*/
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| 179 |
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if(!check_region(ram[b], SRAM_PAGESIZE)) {
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| 180 |
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pr_debug("check_region for RAM base 0x%x succeeded\n", ram[b]);
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| 181 |
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model = identify_board(ram[b], io[b]);
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| 182 |
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}
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| 183 |
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}
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| 184 |
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else {
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| 185 |
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/*
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| 186 |
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* Yes, probe for free RAM and look for
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| 187 |
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* a signature and id the board model
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| 188 |
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*/
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| 189 |
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for (i = SRAM_MIN ; i < SRAM_MAX ; i += SRAM_PAGESIZE) {
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| 190 |
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pr_debug("Checking RAM address 0x%x...\n", i);
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| 191 |
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if(!check_region(i, SRAM_PAGESIZE)) {
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| 192 |
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pr_debug(" check_region succeeded\n");
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| 193 |
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model = identify_board(i, io[b]);
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| 194 |
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if (model >= 0) {
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| 195 |
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pr_debug(" Identified a %s\n",
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| 196 |
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boardname[model]);
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| 197 |
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ram[b] = i;
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| 198 |
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break;
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| 199 |
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}
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| 200 |
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pr_debug(" Unidentifed or inaccessible\n");
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| 201 |
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continue;
|
| 202 |
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}
|
| 203 |
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pr_debug(" check_region failed\n");
|
| 204 |
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}
|
| 205 |
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}
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| 206 |
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/*
|
| 207 |
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* See if we found free RAM and the board model
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| 208 |
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*/
|
| 209 |
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if(!ram[b] || model < 0) {
|
| 210 |
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/*
|
| 211 |
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* Nope, there was no place in RAM for the
|
| 212 |
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* board, or it couldn't be identified
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| 213 |
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*/
|
| 214 |
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pr_debug("Failed to find an adapter at 0x%x\n", ram[b]);
|
| 215 |
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continue;
|
| 216 |
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}
|
| 217 |
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|
| 218 |
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/*
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| 219 |
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* Set the board's magic number, memory size and page register
|
| 220 |
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*/
|
| 221 |
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switch(model) {
|
| 222 |
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case PRI_BOARD:
|
| 223 |
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channels = 23;
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| 224 |
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magic = 0x20000;
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| 225 |
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memsize = 0x100000;
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| 226 |
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features = PRI_FEATURES;
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| 227 |
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break;
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| 228 |
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| 229 |
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case BRI_BOARD:
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| 230 |
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case POTS_BOARD:
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| 231 |
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channels = 2;
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| 232 |
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magic = 0x60000;
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| 233 |
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memsize = 0x10000;
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| 234 |
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features = BRI_FEATURES;
|
| 235 |
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break;
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| 236 |
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}
|
| 237 |
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switch(ram[b] >> 12 & 0x0F) {
|
| 238 |
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case 0x0:
|
| 239 |
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pr_debug("RAM Page register set to EXP_PAGE0\n");
|
| 240 |
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pgport = EXP_PAGE0;
|
| 241 |
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break;
|
| 242 |
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|
| 243 |
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case 0x4:
|
| 244 |
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pr_debug("RAM Page register set to EXP_PAGE1\n");
|
| 245 |
|
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pgport = EXP_PAGE1;
|
| 246 |
|
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break;
|
| 247 |
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|
| 248 |
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case 0x8:
|
| 249 |
|
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pr_debug("RAM Page register set to EXP_PAGE2\n");
|
| 250 |
|
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pgport = EXP_PAGE2;
|
| 251 |
|
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break;
|
| 252 |
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|
| 253 |
|
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case 0xC:
|
| 254 |
|
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pr_debug("RAM Page register set to EXP_PAGE3\n");
|
| 255 |
|
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pgport = EXP_PAGE3;
|
| 256 |
|
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break;
|
| 257 |
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|
| 258 |
|
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default:
|
| 259 |
|
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pr_debug("RAM base address doesn't fall on 16K boundary\n");
|
| 260 |
|
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continue;
|
| 261 |
|
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}
|
| 262 |
|
|
|
| 263 |
|
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pr_debug("current IRQ: %d b: %d\n",irq[b],b);
|
| 264 |
|
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/*
|
| 265 |
|
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* See if we should probe for an irq
|
| 266 |
|
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*/
|
| 267 |
|
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if(irq[b]) {
|
| 268 |
|
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/*
|
| 269 |
|
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* No we were given one
|
| 270 |
|
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* See that it is supported and free
|
| 271 |
|
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*/
|
| 272 |
|
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pr_debug("Trying for IRQ: %d\n",irq[b]);
|
| 273 |
|
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if (irq_supported(irq[b])) {
|
| 274 |
|
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if(REQUEST_IRQ(irq[b], interrupt_handler,
|
| 275 |
|
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SA_PROBE, "sc_probe", NULL)) {
|
| 276 |
|
|
pr_debug("IRQ %d is already in use\n",
|
| 277 |
|
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irq[b]);
|
| 278 |
|
|
continue;
|
| 279 |
|
|
}
|
| 280 |
|
|
FREE_IRQ(irq[b], NULL);
|
| 281 |
|
|
}
|
| 282 |
|
|
}
|
| 283 |
|
|
else {
|
| 284 |
|
|
/*
|
| 285 |
|
|
* Yes, we need to probe for an IRQ
|
| 286 |
|
|
*/
|
| 287 |
|
|
pr_debug("Probing for IRQ...\n");
|
| 288 |
|
|
for (i = 0; i < MAX_IRQS ; i++) {
|
| 289 |
|
|
if(!REQUEST_IRQ(sup_irq[i], interrupt_handler, SA_PROBE, "sc_probe", NULL)) {
|
| 290 |
|
|
pr_debug("Probed for and found IRQ %d\n", sup_irq[i]);
|
| 291 |
|
|
FREE_IRQ(sup_irq[i], NULL);
|
| 292 |
|
|
irq[b] = sup_irq[i];
|
| 293 |
|
|
break;
|
| 294 |
|
|
}
|
| 295 |
|
|
}
|
| 296 |
|
|
}
|
| 297 |
|
|
|
| 298 |
|
|
/*
|
| 299 |
|
|
* Make sure we got an IRQ
|
| 300 |
|
|
*/
|
| 301 |
|
|
if(!irq[b]) {
|
| 302 |
|
|
/*
|
| 303 |
|
|
* No interrupt could be used
|
| 304 |
|
|
*/
|
| 305 |
|
|
pr_debug("Failed to acquire an IRQ line\n");
|
| 306 |
|
|
continue;
|
| 307 |
|
|
}
|
| 308 |
|
|
|
| 309 |
|
|
/*
|
| 310 |
|
|
* Horray! We found a board, Make sure we can register
|
| 311 |
|
|
* it with ISDN4Linux
|
| 312 |
|
|
*/
|
| 313 |
|
|
interface = kmalloc(sizeof(isdn_if), GFP_KERNEL);
|
| 314 |
|
|
if (interface == NULL) {
|
| 315 |
|
|
/*
|
| 316 |
|
|
* Oops, can't malloc isdn_if
|
| 317 |
|
|
*/
|
| 318 |
|
|
continue;
|
| 319 |
|
|
}
|
| 320 |
|
|
memset(interface, 0, sizeof(isdn_if));
|
| 321 |
|
|
|
| 322 |
|
|
interface->hl_hdrlen = 0;
|
| 323 |
|
|
interface->channels = channels;
|
| 324 |
|
|
interface->maxbufsize = BUFFER_SIZE;
|
| 325 |
|
|
interface->features = features;
|
| 326 |
|
|
interface->writebuf_skb = sndpkt;
|
| 327 |
|
|
interface->writecmd = NULL;
|
| 328 |
|
|
interface->command = command;
|
| 329 |
|
|
strcpy(interface->id, devname);
|
| 330 |
|
|
interface->id[2] = '0' + cinst;
|
| 331 |
|
|
|
| 332 |
|
|
/*
|
| 333 |
|
|
* Allocate the board structure
|
| 334 |
|
|
*/
|
| 335 |
|
|
adapter[cinst] = kmalloc(sizeof(board), GFP_KERNEL);
|
| 336 |
|
|
if (adapter[cinst] == NULL) {
|
| 337 |
|
|
/*
|
| 338 |
|
|
* Oops, can't alloc memory for the board
|
| 339 |
|
|
*/
|
| 340 |
|
|
kfree(interface);
|
| 341 |
|
|
continue;
|
| 342 |
|
|
}
|
| 343 |
|
|
memset(adapter[cinst], 0, sizeof(board));
|
| 344 |
|
|
|
| 345 |
|
|
if(!register_isdn(interface)) {
|
| 346 |
|
|
/*
|
| 347 |
|
|
* Oops, couldn't register for some reason
|
| 348 |
|
|
*/
|
| 349 |
|
|
kfree(interface);
|
| 350 |
|
|
kfree(adapter[cinst]);
|
| 351 |
|
|
continue;
|
| 352 |
|
|
}
|
| 353 |
|
|
|
| 354 |
|
|
adapter[cinst]->card = interface;
|
| 355 |
|
|
adapter[cinst]->driverId = interface->channels;
|
| 356 |
|
|
strcpy(adapter[cinst]->devicename, interface->id);
|
| 357 |
|
|
adapter[cinst]->nChannels = channels;
|
| 358 |
|
|
adapter[cinst]->ramsize = memsize;
|
| 359 |
|
|
adapter[cinst]->shmem_magic = magic;
|
| 360 |
|
|
adapter[cinst]->shmem_pgport = pgport;
|
| 361 |
|
|
adapter[cinst]->StartOnReset = 1;
|
| 362 |
|
|
|
| 363 |
|
|
/*
|
| 364 |
|
|
* Allocate channels status structures
|
| 365 |
|
|
*/
|
| 366 |
|
|
adapter[cinst]->channel = kmalloc(sizeof(bchan) * channels, GFP_KERNEL);
|
| 367 |
|
|
if (adapter[cinst]->channel == NULL) {
|
| 368 |
|
|
/*
|
| 369 |
|
|
* Oops, can't alloc memory for the channels
|
| 370 |
|
|
*/
|
| 371 |
|
|
indicate_status(cinst, ISDN_STAT_UNLOAD, 0, NULL); /* Fix me */
|
| 372 |
|
|
kfree(interface);
|
| 373 |
|
|
kfree(adapter[cinst]);
|
| 374 |
|
|
continue;
|
| 375 |
|
|
}
|
| 376 |
|
|
memset(adapter[cinst]->channel, 0, sizeof(bchan) * channels);
|
| 377 |
|
|
|
| 378 |
|
|
/*
|
| 379 |
|
|
* Lock down the hardware resources
|
| 380 |
|
|
*/
|
| 381 |
|
|
adapter[cinst]->interrupt = irq[b];
|
| 382 |
|
|
REQUEST_IRQ(adapter[cinst]->interrupt, interrupt_handler, SA_INTERRUPT,
|
| 383 |
|
|
interface->id, NULL);
|
| 384 |
|
|
adapter[cinst]->iobase = io[b];
|
| 385 |
|
|
for(i = 0 ; i < MAX_IO_REGS - 1 ; i++) {
|
| 386 |
|
|
adapter[cinst]->ioport[i] = io[b] + i * 0x400;
|
| 387 |
|
|
request_region(adapter[cinst]->ioport[i], 1, interface->id);
|
| 388 |
|
|
pr_debug("Requesting I/O Port %#x\n", adapter[cinst]->ioport[i]);
|
| 389 |
|
|
}
|
| 390 |
|
|
adapter[cinst]->ioport[IRQ_SELECT] = io[b] + 0x2;
|
| 391 |
|
|
request_region(adapter[cinst]->ioport[IRQ_SELECT], 1, interface->id);
|
| 392 |
|
|
pr_debug("Requesting I/O Port %#x\n", adapter[cinst]->ioport[IRQ_SELECT]);
|
| 393 |
|
|
adapter[cinst]->rambase = ram[b];
|
| 394 |
|
|
request_region(adapter[cinst]->rambase, SRAM_PAGESIZE, interface->id);
|
| 395 |
|
|
|
| 396 |
|
|
pr_info(" %s (%d) - %s %d channels IRQ %d, I/O Base 0x%x, RAM Base 0x%lx\n",
|
| 397 |
|
|
adapter[cinst]->devicename, adapter[cinst]->driverId,
|
| 398 |
|
|
boardname[model], channels, irq[b], io[b], ram[b]);
|
| 399 |
|
|
|
| 400 |
|
|
/*
|
| 401 |
|
|
* reset the adapter to put things in motion
|
| 402 |
|
|
*/
|
| 403 |
|
|
reset(cinst);
|
| 404 |
|
|
|
| 405 |
|
|
cinst++;
|
| 406 |
|
|
status = 0;
|
| 407 |
|
|
}
|
| 408 |
|
|
if (status)
|
| 409 |
|
|
pr_info("Failed to find any adapters, driver unloaded\n");
|
| 410 |
|
|
return status;
|
| 411 |
|
|
}
|
| 412 |
|
|
|
| 413 |
|
|
static void __exit sc_exit(void)
|
| 414 |
|
|
{
|
| 415 |
|
|
int i, j;
|
| 416 |
|
|
|
| 417 |
|
|
for(i = 0 ; i < cinst ; i++) {
|
| 418 |
|
|
pr_debug("Cleaning up after adapter %d\n", i);
|
| 419 |
|
|
/*
|
| 420 |
|
|
* kill the timers
|
| 421 |
|
|
*/
|
| 422 |
|
|
del_timer(&(adapter[i]->reset_timer));
|
| 423 |
|
|
del_timer(&(adapter[i]->stat_timer));
|
| 424 |
|
|
|
| 425 |
|
|
/*
|
| 426 |
|
|
* Tell I4L we're toast
|
| 427 |
|
|
*/
|
| 428 |
|
|
indicate_status(i, ISDN_STAT_STOP, 0, NULL);
|
| 429 |
|
|
indicate_status(i, ISDN_STAT_UNLOAD, 0, NULL);
|
| 430 |
|
|
|
| 431 |
|
|
/*
|
| 432 |
|
|
* Release shared RAM
|
| 433 |
|
|
*/
|
| 434 |
|
|
release_region(adapter[i]->rambase, SRAM_PAGESIZE);
|
| 435 |
|
|
|
| 436 |
|
|
/*
|
| 437 |
|
|
* Release the IRQ
|
| 438 |
|
|
*/
|
| 439 |
|
|
FREE_IRQ(adapter[i]->interrupt, NULL);
|
| 440 |
|
|
|
| 441 |
|
|
/*
|
| 442 |
|
|
* Reset for a clean start
|
| 443 |
|
|
*/
|
| 444 |
|
|
outb(0xFF, adapter[i]->ioport[SFT_RESET]);
|
| 445 |
|
|
|
| 446 |
|
|
/*
|
| 447 |
|
|
* Release the I/O Port regions
|
| 448 |
|
|
*/
|
| 449 |
|
|
for(j = 0 ; j < MAX_IO_REGS - 1; j++) {
|
| 450 |
|
|
release_region(adapter[i]->ioport[j], 1);
|
| 451 |
|
|
pr_debug("Releasing I/O Port %#x\n", adapter[i]->ioport[j]);
|
| 452 |
|
|
}
|
| 453 |
|
|
release_region(adapter[i]->ioport[IRQ_SELECT], 1);
|
| 454 |
|
|
pr_debug("Releasing I/O Port %#x\n", adapter[i]->ioport[IRQ_SELECT]);
|
| 455 |
|
|
|
| 456 |
|
|
/*
|
| 457 |
|
|
* Release any memory we alloced
|
| 458 |
|
|
*/
|
| 459 |
|
|
kfree(adapter[i]->channel);
|
| 460 |
|
|
kfree(adapter[i]->card);
|
| 461 |
|
|
kfree(adapter[i]);
|
| 462 |
|
|
}
|
| 463 |
|
|
pr_info("SpellCaster ISA ISDN Adapter Driver Unloaded.\n");
|
| 464 |
|
|
}
|
| 465 |
|
|
|
| 466 |
|
|
int identify_board(unsigned long rambase, unsigned int iobase)
|
| 467 |
|
|
{
|
| 468 |
|
|
unsigned int pgport;
|
| 469 |
|
|
unsigned long sig;
|
| 470 |
|
|
DualPortMemory *dpm;
|
| 471 |
|
|
RspMessage rcvmsg;
|
| 472 |
|
|
ReqMessage sndmsg;
|
| 473 |
|
|
HWConfig_pl hwci;
|
| 474 |
|
|
int x;
|
| 475 |
|
|
|
| 476 |
|
|
pr_debug("Attempting to identify adapter @ 0x%x io 0x%x\n",
|
| 477 |
|
|
rambase, iobase);
|
| 478 |
|
|
|
| 479 |
|
|
/*
|
| 480 |
|
|
* Enable the base pointer
|
| 481 |
|
|
*/
|
| 482 |
|
|
outb(rambase >> 12, iobase + 0x2c00);
|
| 483 |
|
|
|
| 484 |
|
|
switch(rambase >> 12 & 0x0F) {
|
| 485 |
|
|
case 0x0:
|
| 486 |
|
|
pgport = iobase + PG0_OFFSET;
|
| 487 |
|
|
pr_debug("Page Register offset is 0x%x\n", PG0_OFFSET);
|
| 488 |
|
|
break;
|
| 489 |
|
|
|
| 490 |
|
|
case 0x4:
|
| 491 |
|
|
pgport = iobase + PG1_OFFSET;
|
| 492 |
|
|
pr_debug("Page Register offset is 0x%x\n", PG1_OFFSET);
|
| 493 |
|
|
break;
|
| 494 |
|
|
|
| 495 |
|
|
case 0x8:
|
| 496 |
|
|
pgport = iobase + PG2_OFFSET;
|
| 497 |
|
|
pr_debug("Page Register offset is 0x%x\n", PG2_OFFSET);
|
| 498 |
|
|
break;
|
| 499 |
|
|
|
| 500 |
|
|
case 0xC:
|
| 501 |
|
|
pgport = iobase + PG3_OFFSET;
|
| 502 |
|
|
pr_debug("Page Register offset is 0x%x\n", PG3_OFFSET);
|
| 503 |
|
|
break;
|
| 504 |
|
|
default:
|
| 505 |
|
|
pr_debug("Invalid rambase 0x%lx\n", rambase);
|
| 506 |
|
|
return -1;
|
| 507 |
|
|
}
|
| 508 |
|
|
|
| 509 |
|
|
/*
|
| 510 |
|
|
* Try to identify a PRI card
|
| 511 |
|
|
*/
|
| 512 |
|
|
outb(PRI_BASEPG_VAL, pgport);
|
| 513 |
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
| 514 |
|
|
schedule_timeout(HZ);
|
| 515 |
|
|
sig = readl(rambase + SIG_OFFSET);
|
| 516 |
|
|
pr_debug("Looking for a signature, got 0x%x\n", sig);
|
| 517 |
|
|
if(sig == SIGNATURE)
|
| 518 |
|
|
return PRI_BOARD;
|
| 519 |
|
|
|
| 520 |
|
|
/*
|
| 521 |
|
|
* Try to identify a PRI card
|
| 522 |
|
|
*/
|
| 523 |
|
|
outb(BRI_BASEPG_VAL, pgport);
|
| 524 |
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
| 525 |
|
|
schedule_timeout(HZ);
|
| 526 |
|
|
sig = readl(rambase + SIG_OFFSET);
|
| 527 |
|
|
pr_debug("Looking for a signature, got 0x%x\n", sig);
|
| 528 |
|
|
if(sig == SIGNATURE)
|
| 529 |
|
|
return BRI_BOARD;
|
| 530 |
|
|
|
| 531 |
|
|
return -1;
|
| 532 |
|
|
|
| 533 |
|
|
/*
|
| 534 |
|
|
* Try to spot a card
|
| 535 |
|
|
*/
|
| 536 |
|
|
sig = readl(rambase + SIG_OFFSET);
|
| 537 |
|
|
pr_debug("Looking for a signature, got 0x%x\n", sig);
|
| 538 |
|
|
if(sig != SIGNATURE)
|
| 539 |
|
|
return -1;
|
| 540 |
|
|
|
| 541 |
|
|
dpm = (DualPortMemory *) rambase;
|
| 542 |
|
|
|
| 543 |
|
|
memset(&sndmsg, 0, MSG_LEN);
|
| 544 |
|
|
sndmsg.msg_byte_cnt = 3;
|
| 545 |
|
|
sndmsg.type = cmReqType1;
|
| 546 |
|
|
sndmsg.class = cmReqClass0;
|
| 547 |
|
|
sndmsg.code = cmReqHWConfig;
|
| 548 |
|
|
memcpy_toio(&(dpm->req_queue[dpm->req_head++]), &sndmsg, MSG_LEN);
|
| 549 |
|
|
outb(0, iobase + 0x400);
|
| 550 |
|
|
pr_debug("Sent HWConfig message\n");
|
| 551 |
|
|
/*
|
| 552 |
|
|
* Wait for the response
|
| 553 |
|
|
*/
|
| 554 |
|
|
x = 0;
|
| 555 |
|
|
while((inb(iobase + FIFOSTAT_OFFSET) & RF_HAS_DATA) && x < 100) {
|
| 556 |
|
|
set_current_state(TASK_INTERRUPTIBLE);
|
| 557 |
|
|
schedule_timeout(1);
|
| 558 |
|
|
x++;
|
| 559 |
|
|
}
|
| 560 |
|
|
if(x == 100) {
|
| 561 |
|
|
pr_debug("Timeout waiting for response\n");
|
| 562 |
|
|
return -1;
|
| 563 |
|
|
}
|
| 564 |
|
|
|
| 565 |
|
|
memcpy_fromio(&rcvmsg, &(dpm->rsp_queue[dpm->rsp_tail]), MSG_LEN);
|
| 566 |
|
|
pr_debug("Got HWConfig response, status = 0x%x\n", rcvmsg.rsp_status);
|
| 567 |
|
|
memcpy(&hwci, &(rcvmsg.msg_data.HWCresponse), sizeof(HWConfig_pl));
|
| 568 |
|
|
pr_debug("Hardware Config: Interface: %s, RAM Size: %d, Serial: %s\n"
|
| 569 |
|
|
" Part: %s, Rev: %s\n",
|
| 570 |
|
|
hwci.st_u_sense ? "S/T" : "U", hwci.ram_size,
|
| 571 |
|
|
hwci.serial_no, hwci.part_no, hwci.rev_no);
|
| 572 |
|
|
|
| 573 |
|
|
if(!strncmp(PRI_PARTNO, hwci.part_no, 6))
|
| 574 |
|
|
return PRI_BOARD;
|
| 575 |
|
|
if(!strncmp(BRI_PARTNO, hwci.part_no, 6))
|
| 576 |
|
|
return BRI_BOARD;
|
| 577 |
|
|
|
| 578 |
|
|
return -1;
|
| 579 |
|
|
}
|
| 580 |
|
|
|
| 581 |
|
|
module_init(sc_init);
|
| 582 |
|
|
module_exit(sc_exit);
|
