/* $Id: niccy.c,v 1.15.6.6 2001/10/20 22:08:24 kai Exp $
*
* low level stuff for Dr. Neuhaus NICCY PnP and NICCY PCI and
* compatible (SAGEM cybermodem)
*
* 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 Dr. Neuhaus and SAGEM for information
*
*/
#include <linux/config.h>
#include <linux/init.h>
#include "hisax.h"
#include "isac.h"
#include "hscx.h"
#include "isdnl1.h"
#include <linux/pci.h>
#include <linux/isapnp.h>
extern const char *CardType[];
const char *niccy_revision = "$Revision: 1.15.6.6 $";
static spinlock_t niccy_lock = SPIN_LOCK_UNLOCKED;
#define byteout(addr,val) outb(val,addr)
#define bytein(addr) inb(addr)
#define ISAC_PCI_DATA 0
#define HSCX_PCI_DATA 1
#define ISAC_PCI_ADDR 2
#define HSCX_PCI_ADDR 3
#define ISAC_PNP 0
#define HSCX_PNP 1
/* SUB Types */
#define NICCY_PNP 1
#define NICCY_PCI 2
/* PCI stuff */
#define PCI_IRQ_CTRL_REG 0x38
#define PCI_IRQ_ENABLE 0x1f00
#define PCI_IRQ_DISABLE 0xff0000
#define PCI_IRQ_ASSERT 0x800000
static inline u8
readreg(unsigned int ale, unsigned int adr, u8 off)
{
u8 ret;
unsigned long flags;
spin_lock_irqsave(&niccy_lock, flags);
byteout(ale, off);
ret = bytein(adr);
spin_unlock_irqrestore(&niccy_lock, flags);
return ret;
}
static inline void
writereg(unsigned int ale, unsigned int adr, u8 off, u8 data)
{
unsigned long flags;
spin_lock_irqsave(&niccy_lock, flags);
byteout(ale, off);
byteout(adr, data);
spin_unlock_irqrestore(&niccy_lock, flags);
}
static inline void
readfifo(unsigned int ale, unsigned int adr, u8 off, u8 * data, int size)
{
byteout(ale, off);
insb(adr, data, size);
}
static inline void
writefifo(unsigned int ale, unsigned int adr, u8 off, u8 * data, int size)
{
byteout(ale, off);
outsb(adr, data, size);
}
static u8
isac_read(struct IsdnCardState *cs, u8 offset)
{
return readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset);
}
static void
isac_write(struct IsdnCardState *cs, u8 offset, u8 value)
{
writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset, value);
}
static void
isac_read_fifo(struct IsdnCardState *cs, u8 *data, int size)
{
readfifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
}
static void
isac_write_fifo(struct IsdnCardState *cs, u8 *data, int size)
{
writefifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
}
static struct dc_hw_ops isac_ops = {
.read_reg = isac_read,
.write_reg = isac_write,
.read_fifo = isac_read_fifo,
.write_fifo = isac_write_fifo,
};
static u8
hscx_read(struct IsdnCardState *cs, int hscx, u8 offset)
{
return readreg(cs->hw.niccy.hscx_ale,
cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0));
}
static void
hscx_write(struct IsdnCardState *cs, int hscx, u8 offset, u8 value)
{
writereg(cs->hw.niccy.hscx_ale,
cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0), value);
}
static void
hscx_read_fifo(struct IsdnCardState *cs, int hscx, u8 *data, int size)
{
readfifo(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx,
hscx ? 0x40 : 0, data, size);
}
static void
hscx_write_fifo(struct IsdnCardState *cs, int hscx, u8 *data, int size)
{
writefifo(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx,
hscx ? 0x40 : 0, data, size);
}
static struct bc_hw_ops hscx_ops = {
.read_reg = hscx_read,
.write_reg = hscx_write,
.read_fifo = hscx_read_fifo,
.write_fifo = hscx_write_fifo,
};
static irqreturn_t
niccy_interrupt(int intno, void *dev_id, struct pt_regs *regs)
{
struct IsdnCardState *cs = dev_id;
if (cs->subtyp == NICCY_PCI) {
int ival;
ival = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
if (!(ival & PCI_IRQ_ASSERT)) /* IRQ not for us (shared) */
return IRQ_NONE;
outl(ival, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
}
return hscxisac_irq(intno, dev_id, regs);
}
void
niccy_release(struct IsdnCardState *cs)
{
if (cs->subtyp == NICCY_PCI) {
int val;
val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
val &= PCI_IRQ_DISABLE;
outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
}
hisax_release_resources(cs);
}
static int
niccy_reset(struct IsdnCardState *cs)
{
if (cs->subtyp == NICCY_PCI) {
int val;
val = inl(cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
val |= PCI_IRQ_ENABLE;
outl(val, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
}
return 0;
}
static struct card_ops niccy_ops = {
.init = inithscxisac,
.reset = niccy_reset,
.release = niccy_release,
.irq_func = niccy_interrupt,
};
static int __init
niccy_probe(struct IsdnCardState *cs)
{
printk(KERN_INFO "HiSax: %s %s config irq:%d data:0x%X ale:0x%X\n",
CardType[cs->typ], (cs->subtyp==1) ? "PnP":"PCI",
cs->irq, cs->hw.niccy.isac, cs->hw.niccy.isac_ale);
cs->card_ops = &niccy_ops;
if (hscxisac_setup(cs, &isac_ops, &hscx_ops))
return -EBUSY;
return 0;
}
static int __init
niccy_pnp_probe(struct IsdnCardState *cs, struct IsdnCard *card)
{
cs->subtyp = NICCY_PNP;
cs->irq = card->para[0];
cs->hw.niccy.isac = card->para[1] + ISAC_PNP;
cs->hw.niccy.hscx = card->para[1] + HSCX_PNP;
cs->hw.niccy.isac_ale = card->para[2] + ISAC_PNP;
cs->hw.niccy.hscx_ale = card->para[2] + HSCX_PNP;
cs->hw.niccy.cfg_reg = 0;
if (!request_io(&cs->rs, cs->hw.niccy.isac, 2, "niccy data"))
goto err;
if (!request_io(&cs->rs, cs->hw.niccy.isac_ale, 2, "niccy addr"))
goto err;
if (niccy_probe(cs) < 0)
goto err;
return 0;
err:
hisax_release_resources(cs);
return -EBUSY;
}
static int __init
niccy_pci_probe(struct IsdnCardState *cs, struct pci_dev *pdev)
{
u32 pci_ioaddr;
if (pci_enable_device(pdev))
goto err;
cs->subtyp = NICCY_PCI;
cs->irq = pdev->irq;
cs->irq_flags |= SA_SHIRQ;
cs->hw.niccy.cfg_reg = pci_resource_start(pdev, 0);
pci_ioaddr = pci_resource_start(pdev, 1);
cs->hw.niccy.isac = pci_ioaddr + ISAC_PCI_DATA;
cs->hw.niccy.isac_ale = pci_ioaddr + ISAC_PCI_ADDR;
cs->hw.niccy.hscx = pci_ioaddr + HSCX_PCI_DATA;
cs->hw.niccy.hscx_ale = pci_ioaddr + HSCX_PCI_ADDR;
if (!request_io(&cs->rs, cs->hw.niccy.isac, 4, "niccy"))
goto err;
if (!request_io(&cs->rs, cs->hw.niccy.cfg_reg, 0x40, "niccy pci"))
goto err;
if (niccy_probe(cs) < 0)
goto err;
return 0;
err:
hisax_release_resources(cs);
return -EBUSY;
}
static struct pci_dev *niccy_dev __initdata = NULL;
#ifdef __ISAPNP__
static struct pnp_card *pnp_c __devinitdata = NULL;
#endif
int __init
setup_niccy(struct IsdnCard *card)
{
char tmp[64];
strcpy(tmp, niccy_revision);
printk(KERN_INFO "HiSax: Niccy driver Rev. %s\n", HiSax_getrev(tmp));
#ifdef __ISAPNP__
if (!card->para[1] && isapnp_present()) {
struct pnp_card *pb;
struct pnp_dev *pd;
if ((pb = pnp_find_card(
ISAPNP_VENDOR('S', 'D', 'A'),
ISAPNP_FUNCTION(0x0150), pnp_c))) {
pnp_c = pb;
pd = NULL;
if (!(pd = pnp_find_dev(pnp_c,
ISAPNP_VENDOR('S', 'D', 'A'),
ISAPNP_FUNCTION(0x0150), pd))) {
printk(KERN_ERR "NiccyPnP: PnP error card found, no device\n");
return (0);
}
if (pnp_device_attach(pd) < 0) {
printk(KERN_ERR "NiccyPnP: attach failed\n");
return 0;
}
if (pnp_activate_dev(pd) < 0) {
printk(KERN_ERR "NiccyPnP: activate failed\n");
pnp_device_detach(pd);
return 0;
}
if (!pnp_irq_valid(pd, 0) || !pnp_port_valid(pd, 0) || !pnp_port_valid(pd, 1)) {
printk(KERN_ERR "NiccyPnP:some resources are missing %ld/%lx/%lx\n",
pnp_irq(pd, 0), pnp_port_start(pd, 0), pnp_port_start(pd, 1));
pnp_device_detach(pd);
return(0);
}
card->para[1] = pnp_port_start(pd, 0);
card->para[2] = pnp_port_start(pd, 1);
card->para[0] = pnp_irq(pd, 0);
} else {
printk(KERN_INFO "NiccyPnP: no ISAPnP card found\n");
}
}
#endif
if (card->para[1]) {
if (niccy_pnp_probe(card->cs, card) < 0)
return 0;
return 1;
} else {
#ifdef CONFIG_PCI
if ((niccy_dev = pci_find_device(PCI_VENDOR_ID_SATSAGEM,
PCI_DEVICE_ID_SATSAGEM_NICCY, niccy_dev))) {
if (niccy_pci_probe(card->cs, niccy_dev) < 0)
return 0;
return 1;
}
#endif /* CONFIG_PCI */
}
return 0;
}
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