9ba02bec38
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Karsten Keil <kkeil@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
243 lines
6.5 KiB
C
243 lines
6.5 KiB
C
/* $Id: nj_u.c,v 2.14.2.3 2004/01/13 14:31:26 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/init.h>
|
|
#include "hisax.h"
|
|
#include "icc.h"
|
|
#include "isdnl1.h"
|
|
#include <linux/pci.h>
|
|
#include <linux/interrupt.h>
|
|
#include <linux/ppp_defs.h>
|
|
#include "netjet.h"
|
|
|
|
static const char *NETjet_U_revision = "$Revision: 2.14.2.3 $";
|
|
|
|
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_u_interrupt(int intno, void *dev_id, struct pt_regs *regs)
|
|
{
|
|
struct IsdnCardState *cs = dev_id;
|
|
u_char val, sval;
|
|
u_long flags;
|
|
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
if (!((sval = bytein(cs->hw.njet.base + NETJET_IRQSTAT1)) &
|
|
NETJET_ISACIRQ)) {
|
|
val = NETjet_ReadIC(cs, ICC_ISTA);
|
|
if (cs->debug & L1_DEB_ISAC)
|
|
debugl1(cs, "tiger: i1 %x %x", sval, val);
|
|
if (val) {
|
|
icc_interrupt(cs, val);
|
|
NETjet_WriteIC(cs, ICC_MASK, 0xFF);
|
|
NETjet_WriteIC(cs, ICC_MASK, 0x0);
|
|
}
|
|
}
|
|
/* 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 */
|
|
sval = 0x08;
|
|
else /* the 1st write page is free */
|
|
sval = 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 */
|
|
sval = sval | 0x02;
|
|
else /* the 1st read page is free */
|
|
sval = sval | 0x01;
|
|
if (sval != cs->hw.njet.last_is0) /* we have a DMA interrupt */
|
|
{
|
|
if (test_and_set_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags)) {
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
return IRQ_HANDLED;
|
|
}
|
|
cs->hw.njet.irqstat0 = sval;
|
|
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_u(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);
|
|
cs->hw.njet.ctrl_reg = 0x40; /* Reset Off and status read clear */
|
|
/* now edge triggered for TJ320 GE 13/07/00 */
|
|
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.auxa, 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_U_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_u(cs);
|
|
spin_unlock_irqrestore(&cs->lock, flags);
|
|
return(0);
|
|
case CARD_RELEASE:
|
|
release_io_netjet(cs);
|
|
return(0);
|
|
case CARD_INIT:
|
|
spin_lock_irqsave(&cs->lock, flags);
|
|
inittiger(cs);
|
|
reset_netjet_u(cs);
|
|
clear_pending_icc_ints(cs);
|
|
initicc(cs);
|
|
/* Reenable all IRQ */
|
|
cs->writeisac(cs, ICC_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_u(struct IsdnCard *card)
|
|
{
|
|
int bytecnt;
|
|
struct IsdnCardState *cs = card->cs;
|
|
char tmp[64];
|
|
#ifdef CONFIG_PCI
|
|
#endif
|
|
#ifdef __BIG_ENDIAN
|
|
#error "not running on big endian machines now"
|
|
#endif
|
|
strcpy(tmp, NETjet_U_revision);
|
|
printk(KERN_INFO "HiSax: Traverse Tech. NETspider-U driver Rev. %s\n", HiSax_getrev(tmp));
|
|
if (cs->typ != ISDN_CTYPE_NETJET_U)
|
|
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 "NETspider-U: 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 "NETspider-U: No IO-Adr for PCI card found\n");
|
|
return(0);
|
|
}
|
|
} else {
|
|
printk(KERN_WARNING "NETspider-U: 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;
|
|
mdelay(10);
|
|
|
|
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.auxa, 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, ICC_RBCH ) >> 5 ) & 3 ) )
|
|
{
|
|
case 3 :
|
|
break;
|
|
|
|
case 0 :
|
|
printk( KERN_WARNING "NETspider-U: NETjet-S PCI card found\n" );
|
|
continue;
|
|
|
|
default :
|
|
printk( KERN_WARNING "NETspider-U: No PCI card found\n" );
|
|
return 0;
|
|
}
|
|
break;
|
|
}
|
|
#else
|
|
|
|
printk(KERN_WARNING "NETspider-U: NO_PCI_BIOS\n");
|
|
printk(KERN_WARNING "NETspider-U: unable to config NETspider-U PCI\n");
|
|
return (0);
|
|
|
|
#endif /* CONFIG_PCI */
|
|
|
|
bytecnt = 256;
|
|
|
|
printk(KERN_INFO
|
|
"NETspider-U: PCI card configured at %#lx IRQ %d\n",
|
|
cs->hw.njet.base, cs->irq);
|
|
if (!request_region(cs->hw.njet.base, bytecnt, "netspider-u 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);
|
|
}
|
|
setup_icc(cs);
|
|
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;
|
|
cs->cardmsg = &NETjet_U_card_msg;
|
|
cs->irq_func = &netjet_u_interrupt;
|
|
cs->irq_flags |= IRQF_SHARED;
|
|
ICCVersion(cs, "NETspider-U:");
|
|
return (1);
|
|
}
|