mirror of
https://github.com/torvalds/linux.git
synced 2024-11-16 09:02:00 +00:00
8349304d12
For the vast majority of CardType[card->typ] uses (but not all!), the string is constant for each driver. Therefore, we may replace CardType[card->typ] with the actual string describing the driver, making each printk() a bit more simple. This also has the nice, intended side effect of greatly reducing external references to hisax global CardType[]. This will be of value once the ISDN drivers are converted to the ISA/PCI/PNP hotplug APIs. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
337 lines
7.7 KiB
C
337 lines
7.7 KiB
C
/* $Id: teleint.c,v 1.16.2.5 2004/01/19 15:31:50 keil Exp $
|
|
*
|
|
* low level stuff for TeleInt isdn cards
|
|
*
|
|
* Author Karsten Keil
|
|
* Copyright by Karsten Keil <keil@isdn4linux.de>
|
|
*
|
|
* This software may be used and distributed according to the terms
|
|
* of the GNU General Public License, incorporated herein by reference.
|
|
*
|
|
*/
|
|
|
|
#include <linux/init.h>
|
|
#include "hisax.h"
|
|
#include "isac.h"
|
|
#include "hfc_2bs0.h"
|
|
#include "isdnl1.h"
|
|
|
|
static const char *TeleInt_revision = "$Revision: 1.16.2.5 $";
|
|
|
|
#define byteout(addr,val) outb(val,addr)
|
|
#define bytein(addr) inb(addr)
|
|
|
|
static inline u_char
|
|
readreg(unsigned int ale, unsigned int adr, u_char off)
|
|
{
|
|
register u_char ret;
|
|
int max_delay = 2000;
|
|
|
|
byteout(ale, off);
|
|
ret = HFC_BUSY & bytein(ale);
|
|
while (ret && --max_delay)
|
|
ret = HFC_BUSY & bytein(ale);
|
|
if (!max_delay) {
|
|
printk(KERN_WARNING "TeleInt Busy not inactive\n");
|
|
return (0);
|
|
}
|
|
ret = bytein(adr);
|
|
return (ret);
|
|
}
|
|
|
|
static inline void
|
|
readfifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
|
|
{
|
|
register u_char ret;
|
|
register int max_delay = 20000;
|
|
register int i;
|
|
|
|
byteout(ale, off);
|
|
for (i = 0; i<size; i++) {
|
|
ret = HFC_BUSY & bytein(ale);
|
|
while (ret && --max_delay)
|
|
ret = HFC_BUSY & bytein(ale);
|
|
if (!max_delay) {
|
|
printk(KERN_WARNING "TeleInt Busy not inactive\n");
|
|
return;
|
|
}
|
|
data[i] = bytein(adr);
|
|
}
|
|
}
|
|
|
|
|
|
static inline void
|
|
writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
|
|
{
|
|
register u_char ret;
|
|
int max_delay = 2000;
|
|
|
|
byteout(ale, off);
|
|
ret = HFC_BUSY & bytein(ale);
|
|
while (ret && --max_delay)
|
|
ret = HFC_BUSY & bytein(ale);
|
|
if (!max_delay) {
|
|
printk(KERN_WARNING "TeleInt Busy not inactive\n");
|
|
return;
|
|
}
|
|
byteout(adr, data);
|
|
}
|
|
|
|
static inline void
|
|
writefifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
|
|
{
|
|
register u_char ret;
|
|
register int max_delay = 20000;
|
|
register int i;
|
|
|
|
byteout(ale, off);
|
|
for (i = 0; i<size; i++) {
|
|
ret = HFC_BUSY & bytein(ale);
|
|
while (ret && --max_delay)
|
|
ret = HFC_BUSY & bytein(ale);
|
|
if (!max_delay) {
|
|
printk(KERN_WARNING "TeleInt Busy not inactive\n");
|
|
return;
|
|
}
|
|
byteout(adr, data[i]);
|
|
}
|
|
}
|
|
|
|
/* Interface functions */
|
|
|
|
static u_char
|
|
ReadISAC(struct IsdnCardState *cs, u_char offset)
|
|
{
|
|
cs->hw.hfc.cip = offset;
|
|
return (readreg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, offset));
|
|
}
|
|
|
|
static void
|
|
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
|
|
{
|
|
cs->hw.hfc.cip = offset;
|
|
writereg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, offset, value);
|
|
}
|
|
|
|
static void
|
|
ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
|
|
{
|
|
cs->hw.hfc.cip = 0;
|
|
readfifo(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, 0, data, size);
|
|
}
|
|
|
|
static void
|
|
WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
|
|
{
|
|
cs->hw.hfc.cip = 0;
|
|
writefifo(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, 0, data, size);
|
|
}
|
|
|
|
static u_char
|
|
ReadHFC(struct IsdnCardState *cs, int data, u_char reg)
|
|
{
|
|
register u_char ret;
|
|
|
|
if (data) {
|
|
cs->hw.hfc.cip = reg;
|
|
byteout(cs->hw.hfc.addr | 1, reg);
|
|
ret = bytein(cs->hw.hfc.addr);
|
|
if (cs->debug & L1_DEB_HSCX_FIFO && (data != 2))
|
|
debugl1(cs, "hfc RD %02x %02x", reg, ret);
|
|
} else
|
|
ret = bytein(cs->hw.hfc.addr | 1);
|
|
return (ret);
|
|
}
|
|
|
|
static void
|
|
WriteHFC(struct IsdnCardState *cs, int data, u_char reg, u_char value)
|
|
{
|
|
byteout(cs->hw.hfc.addr | 1, reg);
|
|
cs->hw.hfc.cip = reg;
|
|
if (data)
|
|
byteout(cs->hw.hfc.addr, value);
|
|
if (cs->debug & L1_DEB_HSCX_FIFO && (data != 2))
|
|
debugl1(cs, "hfc W%c %02x %02x", data ? 'D' : 'C', reg, value);
|
|
}
|
|
|
|
static irqreturn_t
|
|
TeleInt_interrupt(int intno, void *dev_id)
|
|
{
|
|
struct IsdnCardState *cs = dev_id;
|
|
u_char val;
|
|
u_long flags;
|
|
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
val = readreg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, ISAC_ISTA);
|
|
Start_ISAC:
|
|
if (val)
|
|
isac_interrupt(cs, val);
|
|
val = readreg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, ISAC_ISTA);
|
|
if (val) {
|
|
if (cs->debug & L1_DEB_ISAC)
|
|
debugl1(cs, "ISAC IntStat after IntRoutine");
|
|
goto Start_ISAC;
|
|
}
|
|
writereg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, ISAC_MASK, 0xFF);
|
|
writereg(cs->hw.hfc.addr | 1, cs->hw.hfc.addr, ISAC_MASK, 0x0);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static void
|
|
TeleInt_Timer(struct IsdnCardState *cs)
|
|
{
|
|
int stat = 0;
|
|
u_long flags;
|
|
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
if (cs->bcs[0].mode) {
|
|
stat |= 1;
|
|
main_irq_hfc(&cs->bcs[0]);
|
|
}
|
|
if (cs->bcs[1].mode) {
|
|
stat |= 2;
|
|
main_irq_hfc(&cs->bcs[1]);
|
|
}
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
stat = HZ/100;
|
|
if (!stat)
|
|
stat = 1;
|
|
cs->hw.hfc.timer.expires = jiffies + stat;
|
|
add_timer(&cs->hw.hfc.timer);
|
|
}
|
|
|
|
static void
|
|
release_io_TeleInt(struct IsdnCardState *cs)
|
|
{
|
|
del_timer(&cs->hw.hfc.timer);
|
|
releasehfc(cs);
|
|
if (cs->hw.hfc.addr)
|
|
release_region(cs->hw.hfc.addr, 2);
|
|
}
|
|
|
|
static void
|
|
reset_TeleInt(struct IsdnCardState *cs)
|
|
{
|
|
printk(KERN_INFO "TeleInt: resetting card\n");
|
|
cs->hw.hfc.cirm |= HFC_RESET;
|
|
byteout(cs->hw.hfc.addr | 1, cs->hw.hfc.cirm); /* Reset On */
|
|
mdelay(10);
|
|
cs->hw.hfc.cirm &= ~HFC_RESET;
|
|
byteout(cs->hw.hfc.addr | 1, cs->hw.hfc.cirm); /* Reset Off */
|
|
mdelay(10);
|
|
}
|
|
|
|
static int
|
|
TeleInt_card_msg(struct IsdnCardState *cs, int mt, void *arg)
|
|
{
|
|
u_long flags;
|
|
int delay;
|
|
|
|
switch (mt) {
|
|
case CARD_RESET:
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
reset_TeleInt(cs);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
return(0);
|
|
case CARD_RELEASE:
|
|
release_io_TeleInt(cs);
|
|
return(0);
|
|
case CARD_INIT:
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
reset_TeleInt(cs);
|
|
inithfc(cs);
|
|
clear_pending_isac_ints(cs);
|
|
initisac(cs);
|
|
/* Reenable all IRQ */
|
|
cs->writeisac(cs, ISAC_MASK, 0);
|
|
cs->writeisac(cs, ISAC_CMDR, 0x41);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
delay = HZ/100;
|
|
if (!delay)
|
|
delay = 1;
|
|
cs->hw.hfc.timer.expires = jiffies + delay;
|
|
add_timer(&cs->hw.hfc.timer);
|
|
return(0);
|
|
case CARD_TEST:
|
|
return(0);
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
int __devinit
|
|
setup_TeleInt(struct IsdnCard *card)
|
|
{
|
|
struct IsdnCardState *cs = card->cs;
|
|
char tmp[64];
|
|
|
|
strcpy(tmp, TeleInt_revision);
|
|
printk(KERN_INFO "HiSax: TeleInt driver Rev. %s\n", HiSax_getrev(tmp));
|
|
if (cs->typ != ISDN_CTYPE_TELEINT)
|
|
return (0);
|
|
|
|
cs->hw.hfc.addr = card->para[1] & 0x3fe;
|
|
cs->irq = card->para[0];
|
|
cs->hw.hfc.cirm = HFC_CIRM;
|
|
cs->hw.hfc.isac_spcr = 0x00;
|
|
cs->hw.hfc.cip = 0;
|
|
cs->hw.hfc.ctmt = HFC_CTMT | HFC_CLTIMER;
|
|
cs->bcs[0].hw.hfc.send = NULL;
|
|
cs->bcs[1].hw.hfc.send = NULL;
|
|
cs->hw.hfc.fifosize = 7 * 1024 + 512;
|
|
cs->hw.hfc.timer.function = (void *) TeleInt_Timer;
|
|
cs->hw.hfc.timer.data = (long) cs;
|
|
init_timer(&cs->hw.hfc.timer);
|
|
if (!request_region(cs->hw.hfc.addr, 2, "TeleInt isdn")) {
|
|
printk(KERN_WARNING
|
|
"HiSax: TeleInt config port %x-%x already in use\n",
|
|
cs->hw.hfc.addr,
|
|
cs->hw.hfc.addr + 2);
|
|
return (0);
|
|
}
|
|
/* HW IO = IO */
|
|
byteout(cs->hw.hfc.addr, cs->hw.hfc.addr & 0xff);
|
|
byteout(cs->hw.hfc.addr | 1, ((cs->hw.hfc.addr & 0x300) >> 8) | 0x54);
|
|
switch (cs->irq) {
|
|
case 3:
|
|
cs->hw.hfc.cirm |= HFC_INTA;
|
|
break;
|
|
case 4:
|
|
cs->hw.hfc.cirm |= HFC_INTB;
|
|
break;
|
|
case 5:
|
|
cs->hw.hfc.cirm |= HFC_INTC;
|
|
break;
|
|
case 7:
|
|
cs->hw.hfc.cirm |= HFC_INTD;
|
|
break;
|
|
case 10:
|
|
cs->hw.hfc.cirm |= HFC_INTE;
|
|
break;
|
|
case 11:
|
|
cs->hw.hfc.cirm |= HFC_INTF;
|
|
break;
|
|
default:
|
|
printk(KERN_WARNING "TeleInt: wrong IRQ\n");
|
|
release_io_TeleInt(cs);
|
|
return (0);
|
|
}
|
|
byteout(cs->hw.hfc.addr | 1, cs->hw.hfc.cirm);
|
|
byteout(cs->hw.hfc.addr | 1, cs->hw.hfc.ctmt);
|
|
|
|
printk(KERN_INFO "TeleInt: defined at 0x%x IRQ %d\n",
|
|
cs->hw.hfc.addr, cs->irq);
|
|
|
|
setup_isac(cs);
|
|
cs->readisac = &ReadISAC;
|
|
cs->writeisac = &WriteISAC;
|
|
cs->readisacfifo = &ReadISACfifo;
|
|
cs->writeisacfifo = &WriteISACfifo;
|
|
cs->BC_Read_Reg = &ReadHFC;
|
|
cs->BC_Write_Reg = &WriteHFC;
|
|
cs->cardmsg = &TeleInt_card_msg;
|
|
cs->irq_func = &TeleInt_interrupt;
|
|
ISACVersion(cs, "TeleInt:");
|
|
return (1);
|
|
}
|