364 lines
8.3 KiB
C
364 lines
8.3 KiB
C
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/* $Id: command.c,v 1.4.10.1 2001/09/23 22:24:59 kai Exp $
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*
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* Copyright (C) 1996 SpellCaster Telecommunications Inc.
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*
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* This software may be used and distributed according to the terms
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* of the GNU General Public License, incorporated herein by reference.
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*
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* For more information, please contact gpl-info@spellcast.com or write:
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*
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* SpellCaster Telecommunications Inc.
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* 5621 Finch Avenue East, Unit #3
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* Scarborough, Ontario Canada
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* M1B 2T9
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* +1 (416) 297-8565
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* +1 (416) 297-6433 Facsimile
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*/
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#include <linux/module.h>
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#include "includes.h" /* This must be first */
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#include "hardware.h"
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#include "message.h"
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#include "card.h"
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#include "scioc.h"
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static int dial(int card, unsigned long channel, setup_parm setup);
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static int hangup(int card, unsigned long channel);
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static int answer(int card, unsigned long channel);
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static int clreaz(int card, unsigned long channel);
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static int seteaz(int card, unsigned long channel, char *);
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static int setl2(int card, unsigned long arg);
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static int setl3(int card, unsigned long arg);
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static int acceptb(int card, unsigned long channel);
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#ifdef DEBUG
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/*
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* Translate command codes to strings
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*/
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static char *commands[] = { "ISDN_CMD_IOCTL",
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"ISDN_CMD_DIAL",
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"ISDN_CMD_ACCEPTB",
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"ISDN_CMD_ACCEPTB",
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"ISDN_CMD_HANGUP",
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"ISDN_CMD_CLREAZ",
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"ISDN_CMD_SETEAZ",
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NULL,
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NULL,
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NULL,
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"ISDN_CMD_SETL2",
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NULL,
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"ISDN_CMD_SETL3",
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NULL,
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NULL,
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NULL,
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NULL,
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NULL, };
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/*
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* Translates ISDN4Linux protocol codes to strings for debug messages
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*/
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static char *l3protos[] = { "ISDN_PROTO_L3_TRANS" };
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static char *l2protos[] = { "ISDN_PROTO_L2_X75I",
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"ISDN_PROTO_L2_X75UI",
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"ISDN_PROTO_L2_X75BUI",
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"ISDN_PROTO_L2_HDLC",
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"ISDN_PROTO_L2_TRANS" };
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#endif
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int get_card_from_id(int driver)
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{
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int i;
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for(i = 0 ; i < cinst ; i++) {
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if(sc_adapter[i]->driverId == driver)
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return i;
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}
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return -ENODEV;
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}
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/*
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* command
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*/
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int command(isdn_ctrl *cmd)
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{
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int card;
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card = get_card_from_id(cmd->driver);
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if(!IS_VALID_CARD(card)) {
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pr_debug("Invalid param: %d is not a valid card id\n", card);
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return -ENODEV;
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}
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/*
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* Dispatch the command
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*/
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switch(cmd->command) {
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case ISDN_CMD_IOCTL:
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{
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unsigned long cmdptr;
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scs_ioctl ioc;
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memcpy(&cmdptr, cmd->parm.num, sizeof(unsigned long));
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if (copy_from_user(&ioc, (scs_ioctl __user *)cmdptr,
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sizeof(scs_ioctl))) {
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pr_debug("%s: Failed to verify user space 0x%lx\n",
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sc_adapter[card]->devicename, cmdptr);
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return -EFAULT;
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}
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return sc_ioctl(card, &ioc);
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}
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case ISDN_CMD_DIAL:
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return dial(card, cmd->arg, cmd->parm.setup);
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case ISDN_CMD_HANGUP:
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return hangup(card, cmd->arg);
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case ISDN_CMD_ACCEPTD:
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return answer(card, cmd->arg);
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case ISDN_CMD_ACCEPTB:
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return acceptb(card, cmd->arg);
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case ISDN_CMD_CLREAZ:
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return clreaz(card, cmd->arg);
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case ISDN_CMD_SETEAZ:
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return seteaz(card, cmd->arg, cmd->parm.num);
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case ISDN_CMD_SETL2:
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return setl2(card, cmd->arg);
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case ISDN_CMD_SETL3:
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return setl3(card, cmd->arg);
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default:
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return -EINVAL;
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}
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return 0;
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}
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/*
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* start the onboard firmware
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*/
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int startproc(int card)
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{
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int status;
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if(!IS_VALID_CARD(card)) {
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pr_debug("Invalid param: %d is not a valid card id\n", card);
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return -ENODEV;
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}
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/*
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* send start msg
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*/
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status = sendmessage(card, CMPID,cmReqType2,
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cmReqClass0,
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cmReqStartProc,
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0,0,NULL);
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pr_debug("%s: Sent startProc\n", sc_adapter[card]->devicename);
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return status;
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}
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/*
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* Dials the number passed in
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*/
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static int dial(int card, unsigned long channel, setup_parm setup)
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{
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int status;
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char Phone[48];
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if(!IS_VALID_CARD(card)) {
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pr_debug("Invalid param: %d is not a valid card id\n", card);
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return -ENODEV;
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}
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/*extract ISDN number to dial from eaz/msn string*/
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strcpy(Phone,setup.phone);
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/*send the connection message*/
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status = sendmessage(card, CEPID,ceReqTypePhy,
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ceReqClass1,
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ceReqPhyConnect,
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(unsigned char) channel+1,
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strlen(Phone),
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(unsigned int *) Phone);
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pr_debug("%s: Dialing %s on channel %lu\n",
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sc_adapter[card]->devicename, Phone, channel+1);
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return status;
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}
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/*
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* Answer an incoming call
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*/
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static int answer(int card, unsigned long channel)
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{
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if(!IS_VALID_CARD(card)) {
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pr_debug("Invalid param: %d is not a valid card id\n", card);
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return -ENODEV;
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}
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if(setup_buffers(card, channel+1)) {
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hangup(card, channel+1);
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return -ENOBUFS;
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}
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indicate_status(card, ISDN_STAT_BCONN,channel,NULL);
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pr_debug("%s: Answered incoming call on channel %lu\n",
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sc_adapter[card]->devicename, channel+1);
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return 0;
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}
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/*
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* Hangup up the call on specified channel
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*/
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static int hangup(int card, unsigned long channel)
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{
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int status;
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if(!IS_VALID_CARD(card)) {
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pr_debug("Invalid param: %d is not a valid card id\n", card);
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return -ENODEV;
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}
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status = sendmessage(card, CEPID, ceReqTypePhy,
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ceReqClass1,
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ceReqPhyDisconnect,
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(unsigned char) channel+1,
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0,
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NULL);
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pr_debug("%s: Sent HANGUP message to channel %lu\n",
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sc_adapter[card]->devicename, channel+1);
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return status;
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}
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/*
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* Set the layer 2 protocol (X.25, HDLC, Raw)
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*/
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static int setl2(int card, unsigned long arg)
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{
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int status =0;
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int protocol,channel;
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if(!IS_VALID_CARD(card)) {
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pr_debug("Invalid param: %d is not a valid card id\n", card);
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return -ENODEV;
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}
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protocol = arg >> 8;
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channel = arg & 0xff;
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sc_adapter[card]->channel[channel].l2_proto = protocol;
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/*
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* check that the adapter is also set to the correct protocol
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*/
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pr_debug("%s: Sending GetFrameFormat for channel %d\n",
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sc_adapter[card]->devicename, channel+1);
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status = sendmessage(card, CEPID, ceReqTypeCall,
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ceReqClass0,
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ceReqCallGetFrameFormat,
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(unsigned char)channel+1,
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1,
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(unsigned int *) protocol);
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if(status)
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return status;
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return 0;
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}
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/*
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* Set the layer 3 protocol
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*/
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static int setl3(int card, unsigned long channel)
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{
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int protocol = channel >> 8;
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if(!IS_VALID_CARD(card)) {
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pr_debug("Invalid param: %d is not a valid card id\n", card);
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return -ENODEV;
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}
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sc_adapter[card]->channel[channel].l3_proto = protocol;
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return 0;
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}
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static int acceptb(int card, unsigned long channel)
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{
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if(!IS_VALID_CARD(card)) {
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pr_debug("Invalid param: %d is not a valid card id\n", card);
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return -ENODEV;
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}
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if(setup_buffers(card, channel+1))
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{
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hangup(card, channel+1);
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return -ENOBUFS;
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}
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pr_debug("%s: B-Channel connection accepted on channel %lu\n",
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sc_adapter[card]->devicename, channel+1);
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indicate_status(card, ISDN_STAT_BCONN, channel, NULL);
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return 0;
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}
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static int clreaz(int card, unsigned long arg)
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{
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if(!IS_VALID_CARD(card)) {
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pr_debug("Invalid param: %d is not a valid card id\n", card);
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return -ENODEV;
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}
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strcpy(sc_adapter[card]->channel[arg].eazlist, "");
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sc_adapter[card]->channel[arg].eazclear = 1;
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pr_debug("%s: EAZ List cleared for channel %lu\n",
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sc_adapter[card]->devicename, arg+1);
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return 0;
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}
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static int seteaz(int card, unsigned long arg, char *num)
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{
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if(!IS_VALID_CARD(card)) {
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pr_debug("Invalid param: %d is not a valid card id\n", card);
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return -ENODEV;
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}
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strcpy(sc_adapter[card]->channel[arg].eazlist, num);
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sc_adapter[card]->channel[arg].eazclear = 0;
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pr_debug("%s: EAZ list for channel %lu set to: %s\n",
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sc_adapter[card]->devicename, arg+1,
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sc_adapter[card]->channel[arg].eazlist);
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return 0;
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}
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int reset(int card)
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{
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unsigned long flags;
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if(!IS_VALID_CARD(card)) {
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pr_debug("Invalid param: %d is not a valid card id\n", card);
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return -ENODEV;
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}
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indicate_status(card, ISDN_STAT_STOP, 0, NULL);
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if(sc_adapter[card]->EngineUp) {
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del_timer(&sc_adapter[card]->stat_timer);
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}
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sc_adapter[card]->EngineUp = 0;
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spin_lock_irqsave(&sc_adapter[card]->lock, flags);
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init_timer(&sc_adapter[card]->reset_timer);
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sc_adapter[card]->reset_timer.function = sc_check_reset;
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sc_adapter[card]->reset_timer.data = card;
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sc_adapter[card]->reset_timer.expires = jiffies + CHECKRESET_TIME;
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add_timer(&sc_adapter[card]->reset_timer);
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spin_unlock_irqrestore(&sc_adapter[card]->lock, flags);
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outb(0x1,sc_adapter[card]->ioport[SFT_RESET]);
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pr_debug("%s: Adapter Reset\n", sc_adapter[card]->devicename);
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return 0;
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}
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void flushreadfifo (int card)
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{
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while(inb(sc_adapter[card]->ioport[FIFO_STATUS]) & RF_HAS_DATA)
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inb(sc_adapter[card]->ioport[FIFO_READ]);
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}
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