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linux/drivers/isdn/hisax/teles3.c
Adrian Bunk 672c3fd906 [PATCH] drivers/isdn/hisax/: possible cleanups 
This patch contains the following possible cleanups:
- make needlessly global code static
- remove the compiled but unused st5481_hdlc.{c,h}
- kill enternow.h
- enternow_pci.c: kill InByte/OutByte/BYTE
- isdnl2.c: kill FreeSkb
- remove or #if 0 the following unused functions:
  - config.c: IsdnCardState
  - ipacx.c: ipacx_new_ph
  - ipacx.c: dch_bh
  - ipacx.c: setup_ipacx
  - isdnl2.c: IsRR

Signed-off-by: Adrian Bunk <bunk@stusta.de>
Acked-by: Kai Germaschewski <kai@germaschewski.name>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-06-25 16:25:07 -07:00

499 lines
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/* $Id: teles3.c,v 2.19.2.4 2004/01/13 23:48:39 keil Exp $
*
* low level stuff for Teles 16.3 & PNP 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.
*
* Thanks to Jan den Ouden
* Fritz Elfert
* Beat Doebeli
*
*/
#include <linux/init.h>
#include <linux/isapnp.h>
#include "hisax.h"
#include "isac.h"
#include "hscx.h"
#include "isdnl1.h"
extern const char *CardType[];
static const char *teles3_revision = "$Revision: 2.19.2.4 $";
#define byteout(addr,val) outb(val,addr)
#define bytein(addr) inb(addr)
static inline u_char
readreg(unsigned int adr, u_char off)
{
return (bytein(adr + off));
}
static inline void
writereg(unsigned int adr, u_char off, u_char data)
{
byteout(adr + off, data);
}
static inline void
read_fifo(unsigned int adr, u_char * data, int size)
{
insb(adr, data, size);
}
static void
write_fifo(unsigned int adr, u_char * data, int size)
{
outsb(adr, data, size);
}
/* Interface functions */
static u_char
ReadISAC(struct IsdnCardState *cs, u_char offset)
{
return (readreg(cs->hw.teles3.isac, offset));
}
static void
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
{
writereg(cs->hw.teles3.isac, offset, value);
}
static void
ReadISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
read_fifo(cs->hw.teles3.isacfifo, data, size);
}
static void
WriteISACfifo(struct IsdnCardState *cs, u_char * data, int size)
{
write_fifo(cs->hw.teles3.isacfifo, data, size);
}
static u_char
ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
{
return (readreg(cs->hw.teles3.hscx[hscx], offset));
}
static void
WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
{
writereg(cs->hw.teles3.hscx[hscx], offset, value);
}
/*
* fast interrupt HSCX stuff goes here
*/
#define READHSCX(cs, nr, reg) readreg(cs->hw.teles3.hscx[nr], reg)
#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.teles3.hscx[nr], reg, data)
#define READHSCXFIFO(cs, nr, ptr, cnt) read_fifo(cs->hw.teles3.hscxfifo[nr], ptr, cnt)
#define WRITEHSCXFIFO(cs, nr, ptr, cnt) write_fifo(cs->hw.teles3.hscxfifo[nr], ptr, cnt)
#include "hscx_irq.c"
static irqreturn_t
teles3_interrupt(int intno, void *dev_id, struct pt_regs *regs)
{
#define MAXCOUNT 5
struct IsdnCardState *cs = dev_id;
u_char val;
u_long flags;
int count = 0;
spin_lock_irqsave(&cs->lock, flags);
val = readreg(cs->hw.teles3.hscx[1], HSCX_ISTA);
Start_HSCX:
if (val)
hscx_int_main(cs, val);
val = readreg(cs->hw.teles3.isac, ISAC_ISTA);
Start_ISAC:
if (val)
isac_interrupt(cs, val);
count++;
val = readreg(cs->hw.teles3.hscx[1], HSCX_ISTA);
if (val && count < MAXCOUNT) {
if (cs->debug & L1_DEB_HSCX)
debugl1(cs, "HSCX IntStat after IntRoutine");
goto Start_HSCX;
}
val = readreg(cs->hw.teles3.isac, ISAC_ISTA);
if (val && count < MAXCOUNT) {
if (cs->debug & L1_DEB_ISAC)
debugl1(cs, "ISAC IntStat after IntRoutine");
goto Start_ISAC;
}
if (count >= MAXCOUNT)
printk(KERN_WARNING "Teles3: more than %d loops in teles3_interrupt\n", count);
writereg(cs->hw.teles3.hscx[0], HSCX_MASK, 0xFF);
writereg(cs->hw.teles3.hscx[1], HSCX_MASK, 0xFF);
writereg(cs->hw.teles3.isac, ISAC_MASK, 0xFF);
writereg(cs->hw.teles3.isac, ISAC_MASK, 0x0);
writereg(cs->hw.teles3.hscx[0], HSCX_MASK, 0x0);
writereg(cs->hw.teles3.hscx[1], HSCX_MASK, 0x0);
spin_unlock_irqrestore(&cs->lock, flags);
return IRQ_HANDLED;
}
inline static void
release_ioregs(struct IsdnCardState *cs, int mask)
{
if (mask & 1)
release_region(cs->hw.teles3.isac + 32, 32);
if (mask & 2)
release_region(cs->hw.teles3.hscx[0] + 32, 32);
if (mask & 4)
release_region(cs->hw.teles3.hscx[1] + 32, 32);
}
static void
release_io_teles3(struct IsdnCardState *cs)
{
if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
release_region(cs->hw.teles3.hscx[1], 96);
} else {
if (cs->hw.teles3.cfg_reg) {
if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
release_region(cs->hw.teles3.cfg_reg, 1);
} else {
release_region(cs->hw.teles3.cfg_reg, 8);
}
}
release_ioregs(cs, 0x7);
}
}
static int
reset_teles3(struct IsdnCardState *cs)
{
u_char irqcfg;
if (cs->typ != ISDN_CTYPE_TELESPCMCIA) {
if ((cs->hw.teles3.cfg_reg) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA)) {
switch (cs->irq) {
case 2:
case 9:
irqcfg = 0x00;
break;
case 3:
irqcfg = 0x02;
break;
case 4:
irqcfg = 0x04;
break;
case 5:
irqcfg = 0x06;
break;
case 10:
irqcfg = 0x08;
break;
case 11:
irqcfg = 0x0A;
break;
case 12:
irqcfg = 0x0C;
break;
case 15:
irqcfg = 0x0E;
break;
default:
return(1);
}
byteout(cs->hw.teles3.cfg_reg + 4, irqcfg);
HZDELAY(HZ / 10 + 1);
byteout(cs->hw.teles3.cfg_reg + 4, irqcfg | 1);
HZDELAY(HZ / 10 + 1);
} else if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
byteout(cs->hw.teles3.cfg_reg, 0xff);
HZDELAY(2);
byteout(cs->hw.teles3.cfg_reg, 0x00);
HZDELAY(2);
} else {
/* Reset off for 16.3 PnP , thanks to Georg Acher */
byteout(cs->hw.teles3.isac + 0x3c, 0);
HZDELAY(2);
byteout(cs->hw.teles3.isac + 0x3c, 1);
HZDELAY(2);
}
}
return(0);
}
static int
Teles_card_msg(struct IsdnCardState *cs, int mt, void *arg)
{
u_long flags;
switch (mt) {
case CARD_RESET:
spin_lock_irqsave(&cs->lock, flags);
reset_teles3(cs);
spin_unlock_irqrestore(&cs->lock, flags);
return(0);
case CARD_RELEASE:
release_io_teles3(cs);
return(0);
case CARD_INIT:
spin_lock_irqsave(&cs->lock, flags);
inithscxisac(cs, 3);
spin_unlock_irqrestore(&cs->lock, flags);
return(0);
case CARD_TEST:
return(0);
}
return(0);
}
#ifdef __ISAPNP__
static struct isapnp_device_id teles_ids[] __devinitdata = {
{ ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2110),
ISAPNP_VENDOR('T', 'A', 'G'), ISAPNP_FUNCTION(0x2110),
(unsigned long) "Teles 16.3 PnP" },
{ ISAPNP_VENDOR('C', 'T', 'X'), ISAPNP_FUNCTION(0x0),
ISAPNP_VENDOR('C', 'T', 'X'), ISAPNP_FUNCTION(0x0),
(unsigned long) "Creatix 16.3 PnP" },
{ ISAPNP_VENDOR('C', 'P', 'Q'), ISAPNP_FUNCTION(0x1002),
ISAPNP_VENDOR('C', 'P', 'Q'), ISAPNP_FUNCTION(0x1002),
(unsigned long) "Compaq ISDN S0" },
{ 0, }
};
static struct isapnp_device_id *ipid __devinitdata = &teles_ids[0];
static struct pnp_card *pnp_c __devinitdata = NULL;
#endif
int __devinit
setup_teles3(struct IsdnCard *card)
{
u_char val;
struct IsdnCardState *cs = card->cs;
char tmp[64];
strcpy(tmp, teles3_revision);
printk(KERN_INFO "HiSax: Teles IO driver Rev. %s\n", HiSax_getrev(tmp));
if ((cs->typ != ISDN_CTYPE_16_3) && (cs->typ != ISDN_CTYPE_PNP)
&& (cs->typ != ISDN_CTYPE_TELESPCMCIA) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA))
return (0);
#ifdef __ISAPNP__
if (!card->para[1] && isapnp_present()) {
struct pnp_dev *pnp_d;
while(ipid->card_vendor) {
if ((pnp_c = pnp_find_card(ipid->card_vendor,
ipid->card_device, pnp_c))) {
pnp_d = NULL;
if ((pnp_d = pnp_find_dev(pnp_c,
ipid->vendor, ipid->function, pnp_d))) {
int err;
printk(KERN_INFO "HiSax: %s detected\n",
(char *)ipid->driver_data);
pnp_disable_dev(pnp_d);
err = pnp_activate_dev(pnp_d);
if (err<0) {
printk(KERN_WARNING "%s: pnp_activate_dev ret(%d)\n",
__FUNCTION__, err);
return(0);
}
card->para[3] = pnp_port_start(pnp_d, 2);
card->para[2] = pnp_port_start(pnp_d, 1);
card->para[1] = pnp_port_start(pnp_d, 0);
card->para[0] = pnp_irq(pnp_d, 0);
if (!card->para[0] || !card->para[1] || !card->para[2]) {
printk(KERN_ERR "Teles PnP:some resources are missing %ld/%lx/%lx\n",
card->para[0], card->para[1], card->para[2]);
pnp_disable_dev(pnp_d);
return(0);
}
break;
} else {
printk(KERN_ERR "Teles PnP: PnP error card found, no device\n");
}
}
ipid++;
pnp_c = NULL;
}
if (!ipid->card_vendor) {
printk(KERN_INFO "Teles PnP: no ISAPnP card found\n");
return(0);
}
}
#endif
if (cs->typ == ISDN_CTYPE_16_3) {
cs->hw.teles3.cfg_reg = card->para[1];
switch (cs->hw.teles3.cfg_reg) {
case 0x180:
case 0x280:
case 0x380:
cs->hw.teles3.cfg_reg |= 0xc00;
break;
}
cs->hw.teles3.isac = cs->hw.teles3.cfg_reg - 0x420;
cs->hw.teles3.hscx[0] = cs->hw.teles3.cfg_reg - 0xc20;
cs->hw.teles3.hscx[1] = cs->hw.teles3.cfg_reg - 0x820;
} else if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
cs->hw.teles3.cfg_reg = 0;
cs->hw.teles3.hscx[0] = card->para[1] - 0x20;
cs->hw.teles3.hscx[1] = card->para[1];
cs->hw.teles3.isac = card->para[1] + 0x20;
} else if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
cs->hw.teles3.cfg_reg = card->para[3];
cs->hw.teles3.isac = card->para[2] - 32;
cs->hw.teles3.hscx[0] = card->para[1] - 32;
cs->hw.teles3.hscx[1] = card->para[1];
} else { /* PNP */
cs->hw.teles3.cfg_reg = 0;
cs->hw.teles3.isac = card->para[1] - 32;
cs->hw.teles3.hscx[0] = card->para[2] - 32;
cs->hw.teles3.hscx[1] = card->para[2];
}
cs->irq = card->para[0];
cs->hw.teles3.isacfifo = cs->hw.teles3.isac + 0x3e;
cs->hw.teles3.hscxfifo[0] = cs->hw.teles3.hscx[0] + 0x3e;
cs->hw.teles3.hscxfifo[1] = cs->hw.teles3.hscx[1] + 0x3e;
if (cs->typ == ISDN_CTYPE_TELESPCMCIA) {
if (!request_region(cs->hw.teles3.hscx[1], 96, "HiSax Teles PCMCIA")) {
printk(KERN_WARNING
"HiSax: %s ports %x-%x already in use\n",
CardType[cs->typ],
cs->hw.teles3.hscx[1],
cs->hw.teles3.hscx[1] + 96);
return (0);
}
} else {
if (cs->hw.teles3.cfg_reg) {
if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
if (!request_region(cs->hw.teles3.cfg_reg, 1, "teles3 cfg")) {
printk(KERN_WARNING
"HiSax: %s config port %x already in use\n",
CardType[card->typ],
cs->hw.teles3.cfg_reg);
return (0);
}
} else {
if (!request_region(cs->hw.teles3.cfg_reg, 8, "teles3 cfg")) {
printk(KERN_WARNING
"HiSax: %s config port %x-%x already in use\n",
CardType[card->typ],
cs->hw.teles3.cfg_reg,
cs->hw.teles3.cfg_reg + 8);
return (0);
}
}
}
if (!request_region(cs->hw.teles3.isac + 32, 32, "HiSax isac")) {
printk(KERN_WARNING
"HiSax: %s isac ports %x-%x already in use\n",
CardType[cs->typ],
cs->hw.teles3.isac + 32,
cs->hw.teles3.isac + 64);
if (cs->hw.teles3.cfg_reg) {
if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
release_region(cs->hw.teles3.cfg_reg, 1);
} else {
release_region(cs->hw.teles3.cfg_reg, 8);
}
}
return (0);
}
if (!request_region(cs->hw.teles3.hscx[0] + 32, 32, "HiSax hscx A")) {
printk(KERN_WARNING
"HiSax: %s hscx A ports %x-%x already in use\n",
CardType[cs->typ],
cs->hw.teles3.hscx[0] + 32,
cs->hw.teles3.hscx[0] + 64);
if (cs->hw.teles3.cfg_reg) {
if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
release_region(cs->hw.teles3.cfg_reg, 1);
} else {
release_region(cs->hw.teles3.cfg_reg, 8);
}
}
release_ioregs(cs, 1);
return (0);
}
if (!request_region(cs->hw.teles3.hscx[1] + 32, 32, "HiSax hscx B")) {
printk(KERN_WARNING
"HiSax: %s hscx B ports %x-%x already in use\n",
CardType[cs->typ],
cs->hw.teles3.hscx[1] + 32,
cs->hw.teles3.hscx[1] + 64);
if (cs->hw.teles3.cfg_reg) {
if (cs->typ == ISDN_CTYPE_COMPAQ_ISA) {
release_region(cs->hw.teles3.cfg_reg, 1);
} else {
release_region(cs->hw.teles3.cfg_reg, 8);
}
}
release_ioregs(cs, 3);
return (0);
}
}
if ((cs->hw.teles3.cfg_reg) && (cs->typ != ISDN_CTYPE_COMPAQ_ISA)) {
if ((val = bytein(cs->hw.teles3.cfg_reg + 0)) != 0x51) {
printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
cs->hw.teles3.cfg_reg + 0, val);
release_io_teles3(cs);
return (0);
}
if ((val = bytein(cs->hw.teles3.cfg_reg + 1)) != 0x93) {
printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
cs->hw.teles3.cfg_reg + 1, val);
release_io_teles3(cs);
return (0);
}
val = bytein(cs->hw.teles3.cfg_reg + 2);/* 0x1e=without AB
* 0x1f=with AB
* 0x1c 16.3 ???
* 0x39 16.3 1.1
* 0x38 16.3 1.3
* 0x46 16.3 with AB + Video (Teles-Vision)
*/
if (val != 0x46 && val != 0x39 && val != 0x38 && val != 0x1c && val != 0x1e && val != 0x1f) {
printk(KERN_WARNING "Teles: 16.3 Byte at %x is %x\n",
cs->hw.teles3.cfg_reg + 2, val);
release_io_teles3(cs);
return (0);
}
}
printk(KERN_INFO
"HiSax: %s config irq:%d isac:0x%X cfg:0x%X\n",
CardType[cs->typ], cs->irq,
cs->hw.teles3.isac + 32, cs->hw.teles3.cfg_reg);
printk(KERN_INFO
"HiSax: hscx A:0x%X hscx B:0x%X\n",
cs->hw.teles3.hscx[0] + 32, cs->hw.teles3.hscx[1] + 32);
setup_isac(cs);
if (reset_teles3(cs)) {
printk(KERN_WARNING "Teles3: wrong IRQ\n");
release_io_teles3(cs);
return (0);
}
cs->readisac = &ReadISAC;
cs->writeisac = &WriteISAC;
cs->readisacfifo = &ReadISACfifo;
cs->writeisacfifo = &WriteISACfifo;
cs->BC_Read_Reg = &ReadHSCX;
cs->BC_Write_Reg = &WriteHSCX;
cs->BC_Send_Data = &hscx_fill_fifo;
cs->cardmsg = &Teles_card_msg;
cs->irq_func = &teles3_interrupt;
ISACVersion(cs, "Teles3:");
if (HscxVersion(cs, "Teles3:")) {
printk(KERN_WARNING
"Teles3: wrong HSCX versions check IO address\n");
release_io_teles3(cs);
return (0);
}
return (1);
}
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