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