2005-04-16 18:20:36 -04:00
|
|
|
/* $Id: nj_s.c,v 2.13.2.4 2004/01/16 01:53:48 keil Exp $
|
|
|
|
*
|
|
|
|
* This software may be used and distributed according to the terms
|
|
|
|
* of the GNU General Public License, incorporated herein by reference.
|
|
|
|
*
|
|
|
|
*/
|
|
|
|
|
|
|
|
#include <linux/config.h>
|
|
|
|
#include <linux/init.h>
|
|
|
|
#include "hisax.h"
|
|
|
|
#include "isac.h"
|
|
|
|
#include "isdnl1.h"
|
|
|
|
#include <linux/pci.h>
|
|
|
|
#include <linux/interrupt.h>
|
|
|
|
#include <linux/ppp_defs.h>
|
|
|
|
#include "netjet.h"
|
|
|
|
|
2005-06-25 17:59:18 -04:00
|
|
|
static const char *NETjet_S_revision = "$Revision: 2.13.2.4 $";
|
2005-04-16 18:20:36 -04:00
|
|
|
|
|
|
|
static u_char dummyrr(struct IsdnCardState *cs, int chan, u_char off)
|
|
|
|
{
|
|
|
|
return(5);
|
|
|
|
}
|
|
|
|
|
|
|
|
static void dummywr(struct IsdnCardState *cs, int chan, u_char off, u_char value)
|
|
|
|
{
|
|
|
|
}
|
|
|
|
|
|
|
|
static irqreturn_t
|
|
|
|
netjet_s_interrupt(int intno, void *dev_id, struct pt_regs *regs)
|
|
|
|
{
|
|
|
|
struct IsdnCardState *cs = dev_id;
|
|
|
|
u_char val, s1val, s0val;
|
|
|
|
u_long flags;
|
|
|
|
|
|
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
|
|
s1val = bytein(cs->hw.njet.base + NETJET_IRQSTAT1);
|
|
|
|
if (!(s1val & NETJET_ISACIRQ)) {
|
|
|
|
val = NETjet_ReadIC(cs, ISAC_ISTA);
|
|
|
|
if (cs->debug & L1_DEB_ISAC)
|
|
|
|
debugl1(cs, "tiger: i1 %x %x", s1val, val);
|
|
|
|
if (val) {
|
|
|
|
isac_interrupt(cs, val);
|
|
|
|
NETjet_WriteIC(cs, ISAC_MASK, 0xFF);
|
|
|
|
NETjet_WriteIC(cs, ISAC_MASK, 0x0);
|
|
|
|
}
|
|
|
|
s1val = 1;
|
|
|
|
} else
|
|
|
|
s1val = 0;
|
|
|
|
/*
|
|
|
|
* read/write stat0 is better, because lower IRQ rate
|
|
|
|
* Note the IRQ is on for 125 us if a condition match
|
|
|
|
* thats long on modern CPU and so the IRQ is reentered
|
|
|
|
* all the time.
|
|
|
|
*/
|
|
|
|
s0val = bytein(cs->hw.njet.base + NETJET_IRQSTAT0);
|
|
|
|
if ((s0val | s1val)==0) { // shared IRQ
|
|
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
|
|
return IRQ_NONE;
|
|
|
|
}
|
|
|
|
if (s0val)
|
|
|
|
byteout(cs->hw.njet.base + NETJET_IRQSTAT0, s0val);
|
|
|
|
/* start new code 13/07/00 GE */
|
|
|
|
/* set bits in sval to indicate which page is free */
|
|
|
|
if (inl(cs->hw.njet.base + NETJET_DMA_WRITE_ADR) <
|
|
|
|
inl(cs->hw.njet.base + NETJET_DMA_WRITE_IRQ))
|
|
|
|
/* the 2nd write page is free */
|
|
|
|
s0val = 0x08;
|
|
|
|
else /* the 1st write page is free */
|
|
|
|
s0val = 0x04;
|
|
|
|
if (inl(cs->hw.njet.base + NETJET_DMA_READ_ADR) <
|
|
|
|
inl(cs->hw.njet.base + NETJET_DMA_READ_IRQ))
|
|
|
|
/* the 2nd read page is free */
|
|
|
|
s0val |= 0x02;
|
|
|
|
else /* the 1st read page is free */
|
|
|
|
s0val |= 0x01;
|
|
|
|
if (s0val != cs->hw.njet.last_is0) /* we have a DMA interrupt */
|
|
|
|
{
|
|
|
|
if (test_and_set_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags)) {
|
|
|
|
printk(KERN_WARNING "nj LOCK_ATOMIC s0val %x->%x\n",
|
|
|
|
cs->hw.njet.last_is0, s0val);
|
|
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
|
|
return IRQ_HANDLED;
|
|
|
|
}
|
|
|
|
cs->hw.njet.irqstat0 = s0val;
|
|
|
|
if ((cs->hw.njet.irqstat0 & NETJET_IRQM0_READ) !=
|
|
|
|
(cs->hw.njet.last_is0 & NETJET_IRQM0_READ))
|
|
|
|
/* we have a read dma int */
|
|
|
|
read_tiger(cs);
|
|
|
|
if ((cs->hw.njet.irqstat0 & NETJET_IRQM0_WRITE) !=
|
|
|
|
(cs->hw.njet.last_is0 & NETJET_IRQM0_WRITE))
|
|
|
|
/* we have a write dma int */
|
|
|
|
write_tiger(cs);
|
|
|
|
/* end new code 13/07/00 GE */
|
|
|
|
test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags);
|
|
|
|
}
|
|
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
|
|
return IRQ_HANDLED;
|
|
|
|
}
|
|
|
|
|
|
|
|
static void
|
|
|
|
reset_netjet_s(struct IsdnCardState *cs)
|
|
|
|
{
|
|
|
|
cs->hw.njet.ctrl_reg = 0xff; /* Reset On */
|
|
|
|
byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg);
|
|
|
|
mdelay(10);
|
|
|
|
/* now edge triggered for TJ320 GE 13/07/00 */
|
|
|
|
/* see comment in IRQ function */
|
|
|
|
if (cs->subtyp) /* TJ320 */
|
|
|
|
cs->hw.njet.ctrl_reg = 0x40; /* Reset Off and status read clear */
|
|
|
|
else
|
|
|
|
cs->hw.njet.ctrl_reg = 0x00; /* Reset Off and status read clear */
|
|
|
|
byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg);
|
|
|
|
mdelay(10);
|
|
|
|
cs->hw.njet.auxd = 0;
|
|
|
|
cs->hw.njet.dmactrl = 0;
|
|
|
|
byteout(cs->hw.njet.base + NETJET_AUXCTRL, ~NETJET_ISACIRQ);
|
|
|
|
byteout(cs->hw.njet.base + NETJET_IRQMASK1, NETJET_ISACIRQ);
|
|
|
|
byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
|
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
NETjet_S_card_msg(struct IsdnCardState *cs, int mt, void *arg)
|
|
|
|
{
|
|
|
|
u_long flags;
|
|
|
|
|
|
|
|
switch (mt) {
|
|
|
|
case CARD_RESET:
|
|
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
|
|
reset_netjet_s(cs);
|
|
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
|
|
return(0);
|
|
|
|
case CARD_RELEASE:
|
|
|
|
release_io_netjet(cs);
|
|
|
|
return(0);
|
|
|
|
case CARD_INIT:
|
|
|
|
reset_netjet_s(cs);
|
|
|
|
inittiger(cs);
|
|
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
|
|
clear_pending_isac_ints(cs);
|
|
|
|
initisac(cs);
|
|
|
|
/* Reenable all IRQ */
|
|
|
|
cs->writeisac(cs, ISAC_MASK, 0);
|
|
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
|
|
return(0);
|
|
|
|
case CARD_TEST:
|
|
|
|
return(0);
|
|
|
|
}
|
|
|
|
return(0);
|
|
|
|
}
|
|
|
|
|
|
|
|
static struct pci_dev *dev_netjet __initdata = NULL;
|
|
|
|
|
|
|
|
int __init
|
|
|
|
setup_netjet_s(struct IsdnCard *card)
|
|
|
|
{
|
|
|
|
int bytecnt,cfg;
|
|
|
|
struct IsdnCardState *cs = card->cs;
|
|
|
|
char tmp[64];
|
|
|
|
|
|
|
|
#ifdef __BIG_ENDIAN
|
|
|
|
#error "not running on big endian machines now"
|
|
|
|
#endif
|
|
|
|
strcpy(tmp, NETjet_S_revision);
|
|
|
|
printk(KERN_INFO "HiSax: Traverse Tech. NETjet-S driver Rev. %s\n", HiSax_getrev(tmp));
|
|
|
|
if (cs->typ != ISDN_CTYPE_NETJET_S)
|
|
|
|
return(0);
|
|
|
|
test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags);
|
|
|
|
|
|
|
|
#ifdef CONFIG_PCI
|
|
|
|
|
|
|
|
for ( ;; )
|
|
|
|
{
|
|
|
|
if ((dev_netjet = pci_find_device(PCI_VENDOR_ID_TIGERJET,
|
|
|
|
PCI_DEVICE_ID_TIGERJET_300, dev_netjet))) {
|
|
|
|
if (pci_enable_device(dev_netjet))
|
|
|
|
return(0);
|
|
|
|
pci_set_master(dev_netjet);
|
|
|
|
cs->irq = dev_netjet->irq;
|
|
|
|
if (!cs->irq) {
|
|
|
|
printk(KERN_WARNING "NETjet-S: No IRQ for PCI card found\n");
|
|
|
|
return(0);
|
|
|
|
}
|
|
|
|
cs->hw.njet.base = pci_resource_start(dev_netjet, 0);
|
|
|
|
if (!cs->hw.njet.base) {
|
|
|
|
printk(KERN_WARNING "NETjet-S: No IO-Adr for PCI card found\n");
|
|
|
|
return(0);
|
|
|
|
}
|
|
|
|
/* the TJ300 and TJ320 must be detected, the IRQ handling is different
|
|
|
|
* unfortunatly the chips use the same device ID, but the TJ320 has
|
|
|
|
* the bit20 in status PCI cfg register set
|
|
|
|
*/
|
|
|
|
pci_read_config_dword(dev_netjet, 0x04, &cfg);
|
|
|
|
if (cfg & 0x00100000)
|
|
|
|
cs->subtyp = 1; /* TJ320 */
|
|
|
|
else
|
|
|
|
cs->subtyp = 0; /* TJ300 */
|
|
|
|
/* 2001/10/04 Christoph Ersfeld, Formula-n Europe AG www.formula-n.com */
|
|
|
|
if ((dev_netjet->subsystem_vendor == 0x55) &&
|
|
|
|
(dev_netjet->subsystem_device == 0x02)) {
|
|
|
|
printk(KERN_WARNING "Netjet: You tried to load this driver with an incompatible TigerJet-card\n");
|
|
|
|
printk(KERN_WARNING "Use type=41 for Formula-n enter:now ISDN PCI and compatible\n");
|
|
|
|
return(0);
|
|
|
|
}
|
|
|
|
/* end new code */
|
|
|
|
} else {
|
|
|
|
printk(KERN_WARNING "NETjet-S: No PCI card found\n");
|
|
|
|
return(0);
|
|
|
|
}
|
|
|
|
|
|
|
|
cs->hw.njet.auxa = cs->hw.njet.base + NETJET_AUXDATA;
|
|
|
|
cs->hw.njet.isac = cs->hw.njet.base | NETJET_ISAC_OFF;
|
|
|
|
|
|
|
|
cs->hw.njet.ctrl_reg = 0xff; /* Reset On */
|
|
|
|
byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg);
|
|
|
|
mdelay(10);
|
|
|
|
|
|
|
|
cs->hw.njet.ctrl_reg = 0x00; /* Reset Off and status read clear */
|
|
|
|
byteout(cs->hw.njet.base + NETJET_CTRL, cs->hw.njet.ctrl_reg);
|
|
|
|
mdelay(10);
|
|
|
|
|
|
|
|
cs->hw.njet.auxd = 0xC0;
|
|
|
|
cs->hw.njet.dmactrl = 0;
|
|
|
|
|
|
|
|
byteout(cs->hw.njet.base + NETJET_AUXCTRL, ~NETJET_ISACIRQ);
|
|
|
|
byteout(cs->hw.njet.base + NETJET_IRQMASK1, NETJET_ISACIRQ);
|
|
|
|
byteout(cs->hw.njet.auxa, cs->hw.njet.auxd);
|
|
|
|
|
|
|
|
switch ( ( ( NETjet_ReadIC( cs, ISAC_RBCH ) >> 5 ) & 3 ) )
|
|
|
|
{
|
|
|
|
case 0 :
|
|
|
|
break;
|
|
|
|
|
|
|
|
case 3 :
|
|
|
|
printk( KERN_WARNING "NETjet-S: NETspider-U PCI card found\n" );
|
|
|
|
continue;
|
|
|
|
|
|
|
|
default :
|
|
|
|
printk( KERN_WARNING "NETjet-S: No PCI card found\n" );
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
#else
|
|
|
|
|
|
|
|
printk(KERN_WARNING "NETjet-S: NO_PCI_BIOS\n");
|
|
|
|
printk(KERN_WARNING "NETjet-S: unable to config NETJET-S PCI\n");
|
|
|
|
return (0);
|
|
|
|
|
|
|
|
#endif /* CONFIG_PCI */
|
|
|
|
|
|
|
|
bytecnt = 256;
|
|
|
|
|
|
|
|
printk(KERN_INFO
|
|
|
|
"NETjet-S: %s card configured at %#lx IRQ %d\n",
|
|
|
|
cs->subtyp ? "TJ320" : "TJ300", cs->hw.njet.base, cs->irq);
|
|
|
|
if (!request_region(cs->hw.njet.base, bytecnt, "netjet-s isdn")) {
|
|
|
|
printk(KERN_WARNING
|
|
|
|
"HiSax: %s config port %#lx-%#lx already in use\n",
|
|
|
|
CardType[card->typ],
|
|
|
|
cs->hw.njet.base,
|
|
|
|
cs->hw.njet.base + bytecnt);
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
cs->readisac = &NETjet_ReadIC;
|
|
|
|
cs->writeisac = &NETjet_WriteIC;
|
|
|
|
cs->readisacfifo = &NETjet_ReadICfifo;
|
|
|
|
cs->writeisacfifo = &NETjet_WriteICfifo;
|
|
|
|
cs->BC_Read_Reg = &dummyrr;
|
|
|
|
cs->BC_Write_Reg = &dummywr;
|
|
|
|
cs->BC_Send_Data = &netjet_fill_dma;
|
|
|
|
setup_isac(cs);
|
|
|
|
cs->cardmsg = &NETjet_S_card_msg;
|
|
|
|
cs->irq_func = &netjet_s_interrupt;
|
|
|
|
cs->irq_flags |= SA_SHIRQ;
|
|
|
|
ISACVersion(cs, "NETjet-S:");
|
|
|
|
return (1);
|
|
|
|
}
|