mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-21 08:53:41 +00:00
261 lines
6.7 KiB
C
261 lines
6.7 KiB
C
|
/* $Id: interrupt.c,v 1.4.8.3 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 "includes.h"
|
||
|
|
#include "hardware.h"
|
||
|
|
#include "message.h"
|
||
|
|
#include "card.h"
|
||
|
|
#include <linux/interrupt.h>
|
||
|
|
|
||
|
|
extern int indicate_status(int, int, ulong, char *);
|
||
|
|
extern void check_phystat(unsigned long);
|
||
|
|
extern int receivemessage(int, RspMessage *);
|
||
|
|
extern int sendmessage(int, unsigned int, unsigned int, unsigned int,
|
||
|
|
unsigned int, unsigned int, unsigned int, unsigned int *);
|
||
|
|
extern void rcvpkt(int, RspMessage *);
|
||
|
|
|
||
|
|
extern int cinst;
|
||
|
|
extern board *sc_adapter[];
|
||
|
|
|
||
|
|
int get_card_from_irq(int irq)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
for(i = 0 ; i < cinst ; i++) {
|
||
|
|
if(sc_adapter[i]->interrupt == irq)
|
||
|
|
return i;
|
||
|
|
}
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
irqreturn_t interrupt_handler(int interrupt, void *cardptr, struct pt_regs *regs)
|
||
|
|
{
|
||
|
|
|
||
|
|
RspMessage rcvmsg;
|
||
|
|
int channel;
|
||
|
|
int card;
|
||
|
|
|
||
|
|
card = get_card_from_irq(interrupt);
|
||
|
|
|
||
|
|
if(!IS_VALID_CARD(card)) {
|
||
|
|
pr_debug("Invalid param: %d is not a valid card id\n", card);
|
||
|
|
return IRQ_NONE;
|
||
|
|
}
|
||
|
|
|
||
|
|
pr_debug("%s: Entered Interrupt handler\n",
|
||
|
|
sc_adapter[card]->devicename);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Pull all of the waiting messages off the response queue
|
||
|
|
*/
|
||
|
|
while (!receivemessage(card, &rcvmsg)) {
|
||
|
|
/*
|
||
|
|
* Push the message to the adapter structure for
|
||
|
|
* send_and_receive to snoop
|
||
|
|
*/
|
||
|
|
if(sc_adapter[card]->want_async_messages)
|
||
|
|
memcpy(&(sc_adapter[card]->async_msg),
|
||
|
|
&rcvmsg, sizeof(RspMessage));
|
||
|
|
|
||
|
|
channel = (unsigned int) rcvmsg.phy_link_no;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Trap Invalid request messages
|
||
|
|
*/
|
||
|
|
if(IS_CM_MESSAGE(rcvmsg, 0, 0, Invalid)) {
|
||
|
|
pr_debug("%s: Invalid request Message, rsp_status = %d\n",
|
||
|
|
sc_adapter[card]->devicename,
|
||
|
|
rcvmsg.rsp_status);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Check for a linkRead message
|
||
|
|
*/
|
||
|
|
if (IS_CE_MESSAGE(rcvmsg, Lnk, 1, Read))
|
||
|
|
{
|
||
|
|
pr_debug("%s: Received packet 0x%x bytes long at 0x%x\n",
|
||
|
|
sc_adapter[card]->devicename,
|
||
|
|
rcvmsg.msg_data.response.msg_len,
|
||
|
|
rcvmsg.msg_data.response.buff_offset);
|
||
|
|
rcvpkt(card, &rcvmsg);
|
||
|
|
continue;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Handle a write acknoledgement
|
||
|
|
*/
|
||
|
|
if(IS_CE_MESSAGE(rcvmsg, Lnk, 1, Write)) {
|
||
|
|
pr_debug("%s: Packet Send ACK on channel %d\n",
|
||
|
|
sc_adapter[card]->devicename,
|
||
|
|
rcvmsg.phy_link_no);
|
||
|
|
sc_adapter[card]->channel[rcvmsg.phy_link_no-1].free_sendbufs++;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Handle a connection message
|
||
|
|
*/
|
||
|
|
if (IS_CE_MESSAGE(rcvmsg, Phy, 1, Connect))
|
||
|
|
{
|
||
|
|
unsigned int callid;
|
||
|
|
setup_parm setup;
|
||
|
|
pr_debug("%s: Connect message: line %d: status %d: cause 0x%x\n",
|
||
|
|
sc_adapter[card]->devicename,
|
||
|
|
rcvmsg.phy_link_no,
|
||
|
|
rcvmsg.rsp_status,
|
||
|
|
rcvmsg.msg_data.byte_array[2]);
|
||
|
|
|
||
|
|
memcpy(&callid,rcvmsg.msg_data.byte_array,sizeof(int));
|
||
|
|
if(callid>=0x8000 && callid<=0xFFFF)
|
||
|
|
{
|
||
|
|
pr_debug("%s: Got Dial-Out Rsp\n",
|
||
|
|
sc_adapter[card]->devicename);
|
||
|
|
indicate_status(card, ISDN_STAT_DCONN,
|
||
|
|
(unsigned long)rcvmsg.phy_link_no-1,NULL);
|
||
|
|
|
||
|
|
}
|
||
|
|
else if(callid>=0x0000 && callid<=0x7FFF)
|
||
|
|
{
|
||
|
|
pr_debug("%s: Got Incoming Call\n",
|
||
|
|
sc_adapter[card]->devicename);
|
||
|
|
strcpy(setup.phone,&(rcvmsg.msg_data.byte_array[4]));
|
||
|
|
strcpy(setup.eazmsn,
|
||
|
|
sc_adapter[card]->channel[rcvmsg.phy_link_no-1].dn);
|
||
|
|
setup.si1 = 7;
|
||
|
|
setup.si2 = 0;
|
||
|
|
setup.plan = 0;
|
||
|
|
setup.screen = 0;
|
||
|
|
|
||
|
|
indicate_status(card, ISDN_STAT_ICALL,(unsigned long)rcvmsg.phy_link_no-1,(char *)&setup);
|
||
|
|
indicate_status(card, ISDN_STAT_DCONN,(unsigned long)rcvmsg.phy_link_no-1,NULL);
|
||
|
|
}
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Handle a disconnection message
|
||
|
|
*/
|
||
|
|
if (IS_CE_MESSAGE(rcvmsg, Phy, 1, Disconnect))
|
||
|
|
{
|
||
|
|
pr_debug("%s: disconnect message: line %d: status %d: cause 0x%x\n",
|
||
|
|
sc_adapter[card]->devicename,
|
||
|
|
rcvmsg.phy_link_no,
|
||
|
|
rcvmsg.rsp_status,
|
||
|
|
rcvmsg.msg_data.byte_array[2]);
|
||
|
|
|
||
|
|
indicate_status(card, ISDN_STAT_BHUP,(unsigned long)rcvmsg.phy_link_no-1,NULL);
|
||
|
|
indicate_status(card, ISDN_STAT_DHUP,(unsigned long)rcvmsg.phy_link_no-1,NULL);
|
||
|
|
continue;
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Handle a startProc engine up message
|
||
|
|
*/
|
||
|
|
if (IS_CM_MESSAGE(rcvmsg, 5, 0, MiscEngineUp)) {
|
||
|
|
pr_debug("%s: Received EngineUp message\n",
|
||
|
|
sc_adapter[card]->devicename);
|
||
|
|
sc_adapter[card]->EngineUp = 1;
|
||
|
|
sendmessage(card, CEPID,ceReqTypeCall,ceReqClass0,ceReqCallGetMyNumber,1,0,NULL);
|
||
|
|
sendmessage(card, CEPID,ceReqTypeCall,ceReqClass0,ceReqCallGetMyNumber,2,0,NULL);
|
||
|
|
init_timer(&sc_adapter[card]->stat_timer);
|
||
|
|
sc_adapter[card]->stat_timer.function = check_phystat;
|
||
|
|
sc_adapter[card]->stat_timer.data = card;
|
||
|
|
sc_adapter[card]->stat_timer.expires = jiffies + CHECKSTAT_TIME;
|
||
|
|
add_timer(&sc_adapter[card]->stat_timer);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Start proc response
|
||
|
|
*/
|
||
|
|
if (IS_CM_MESSAGE(rcvmsg, 2, 0, StartProc)) {
|
||
|
|
pr_debug("%s: StartProc Response Status %d\n",
|
||
|
|
sc_adapter[card]->devicename,
|
||
|
|
rcvmsg.rsp_status);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Handle a GetMyNumber Rsp
|
||
|
|
*/
|
||
|
|
if (IS_CE_MESSAGE(rcvmsg,Call,0,GetMyNumber)){
|
||
|
|
strcpy(sc_adapter[card]->channel[rcvmsg.phy_link_no-1].dn,rcvmsg.msg_data.byte_array);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* PhyStatus response
|
||
|
|
*/
|
||
|
|
if(IS_CE_MESSAGE(rcvmsg, Phy, 2, Status)) {
|
||
|
|
unsigned int b1stat, b2stat;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Covert the message data to the adapter->phystat code
|
||
|
|
*/
|
||
|
|
b1stat = (unsigned int) rcvmsg.msg_data.byte_array[0];
|
||
|
|
b2stat = (unsigned int) rcvmsg.msg_data.byte_array[1];
|
||
|
|
|
||
|
|
sc_adapter[card]->nphystat = (b2stat >> 8) | b1stat; /* endian?? */
|
||
|
|
pr_debug("%s: PhyStat is 0x%2x\n",
|
||
|
|
sc_adapter[card]->devicename,
|
||
|
|
sc_adapter[card]->nphystat);
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Handle a GetFramFormat
|
||
|
|
*/
|
||
|
|
if(IS_CE_MESSAGE(rcvmsg, Call, 0, GetFrameFormat)) {
|
||
|
|
if(rcvmsg.msg_data.byte_array[0] != HDLC_PROTO) {
|
||
|
|
unsigned int proto = HDLC_PROTO;
|
||
|
|
/*
|
||
|
|
* Set board format to HDLC if it wasn't already
|
||
|
|
*/
|
||
|
|
pr_debug("%s: current frame format: 0x%x, will change to HDLC\n",
|
||
|
|
sc_adapter[card]->devicename,
|
||
|
|
rcvmsg.msg_data.byte_array[0]);
|
||
|
|
sendmessage(card, CEPID, ceReqTypeCall,
|
||
|
|
ceReqClass0,
|
||
|
|
ceReqCallSetFrameFormat,
|
||
|
|
(unsigned char) channel +1,
|
||
|
|
1,&proto);
|
||
|
|
}
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Hmm...
|
||
|
|
*/
|
||
|
|
pr_debug("%s: Received unhandled message (%d,%d,%d) link %d\n",
|
||
|
|
sc_adapter[card]->devicename,
|
||
|
|
rcvmsg.type, rcvmsg.class, rcvmsg.code,
|
||
|
|
rcvmsg.phy_link_no);
|
||
|
|
|
||
|
|
} /* while */
|
||
|
|
|
||
|
|
pr_debug("%s: Exiting Interrupt Handler\n",
|
||
|
|
sc_adapter[card]->devicename);
|
||
|
|
return IRQ_HANDLED;
|
||
|
|
}
|