/* $Id: niccy.c,v 1.21.2.4 2004/01/13 23:48:39 keil 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/init.h>
#include "hisax.h"
#include "isac.h"
#include "hscx.h"
#include "isdnl1.h"
#include <linux/pci.h>
#include <linux/isapnp.h>
static const char *niccy_revision = "$Revision: 1.21.2.4 $";
#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 u_char readreg(unsigned int ale, unsigned int adr, u_char off)
{
register u_char ret;
byteout(ale, off);
ret = bytein(adr);
return ret;
}
static inline void readfifo(unsigned int ale, unsigned int adr, u_char off,
u_char *data, int size)
{
byteout(ale, off);
insb(adr, data, size);
}
static inline void writereg(unsigned int ale, unsigned int adr, u_char off,
u_char data)
{
byteout(ale, off);
byteout(adr, data);
}
static inline void writefifo(unsigned int ale, unsigned int adr, u_char off,
u_char *data, int size)
{
byteout(ale, off);
outsb(adr, data, size);
}
/* Interface functions */
static u_char ReadISAC(struct IsdnCardState *cs, u_char offset)
{
return readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset);
}
static void WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
{
writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, offset, value);
}
static void ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
{
readfifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
}
static void WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
{
writefifo(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, 0, data, size);
}
static u_char ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
{
return readreg(cs->hw.niccy.hscx_ale,
cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0));
}
static void WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset,
u_char value)
{
writereg(cs->hw.niccy.hscx_ale,
cs->hw.niccy.hscx, offset + (hscx ? 0x40 : 0), value);
}
#define READHSCX(cs, nr, reg) readreg(cs->hw.niccy.hscx_ale, \
cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0))
#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.niccy.hscx_ale, \
cs->hw.niccy.hscx, reg + (nr ? 0x40 : 0), data)
#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.niccy.hscx_ale, \
cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt)
#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.niccy.hscx_ale, \
cs->hw.niccy.hscx, (nr ? 0x40 : 0), ptr, cnt)
#include "hscx_irq.c"
static irqreturn_t niccy_interrupt(int intno, void *dev_id)
{
struct IsdnCardState *cs = dev_id;
u_char val;
u_long flags;
spin_lock_irqsave(&cs->lock, flags);
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) */
spin_unlock_irqrestore(&cs->lock, flags);
return IRQ_NONE;
}
outl(ival, cs->hw.niccy.cfg_reg + PCI_IRQ_CTRL_REG);
}
val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx,
HSCX_ISTA + 0x40);
Start_HSCX:
if (val)
hscx_int_main(cs, val);
val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA);
Start_ISAC:
if (val)
isac_interrupt(cs, val);
val = readreg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx,
HSCX_ISTA + 0x40);
if (val) {
if (cs->debug & L1_DEB_HSCX)
debugl1(cs, "HSCX IntStat after IntRoutine");
goto Start_HSCX;
}
val = readreg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_ISTA);
if (val) {
if (cs->debug & L1_DEB_ISAC)
debugl1(cs, "ISAC IntStat after IntRoutine");
goto Start_ISAC;
}
writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0xFF);
writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40,
0xFF);
writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0xFF);
writereg(cs->hw.niccy.isac_ale, cs->hw.niccy.isac, ISAC_MASK, 0);
writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK, 0);
writereg(cs->hw.niccy.hscx_ale, cs->hw.niccy.hscx, HSCX_MASK + 0x40, 0);
spin_unlock_irqrestore(&cs->lock, flags);
return IRQ_HANDLED;
}
static void release_io_niccy(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);
release_region(cs->hw.niccy.cfg_reg, 0x40);
release_region(cs->hw.niccy.isac, 4);
} else {
release_region(cs->hw.niccy.isac, 2);
release_region(cs->hw.niccy.isac_ale, 2);
}
}
static void 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);
}
inithscxisac(cs, 3);
}
static int niccy_card_msg(struct IsdnCardState *cs, int mt, void *arg)
{
u_long flags;
switch (mt) {
case CARD_RESET:
spin_lock_irqsave(&cs->lock, flags);
niccy_reset(cs);
spin_unlock_irqrestore(&cs->lock, flags);
return 0;
case CARD_RELEASE:
release_io_niccy(cs);
return 0;
case CARD_INIT:
spin_lock_irqsave(&cs->lock, flags);
niccy_reset(cs);
spin_unlock_irqrestore(&cs->lock, flags);
return 0;
case CARD_TEST:
return 0;
}
return 0;
}
#ifdef __ISAPNP__
static struct pnp_card *pnp_c = NULL;
#endif
int setup_niccy(struct IsdnCard *card)
{
struct IsdnCardState *cs = card->cs;
char tmp[64];
strcpy(tmp, niccy_revision);
printk(KERN_INFO "HiSax: Niccy driver Rev. %s\n", HiSax_getrev(tmp));
if (cs->typ != ISDN_CTYPE_NICCY)
return 0;
#ifdef __ISAPNP__
if (!card->para[1] && isapnp_present()) {
struct pnp_dev *pnp_d = NULL;
int err;
pnp_c = pnp_find_card(ISAPNP_VENDOR('S', 'D', 'A'),
ISAPNP_FUNCTION(0x0150), pnp_c);
if (pnp_c) {
pnp_d = pnp_find_dev(pnp_c,
ISAPNP_VENDOR('S', 'D', 'A'),
ISAPNP_FUNCTION(0x0150), pnp_d);
if (!pnp_d) {
printk(KERN_ERR "NiccyPnP: PnP error card "
"found, no device\n");
return 0;
}
pnp_disable_dev(pnp_d);
err = pnp_activate_dev(pnp_d);
if (err < 0) {
printk(KERN_WARNING "%s: pnp_activate_dev "
"ret(%d)\n", __func__, err);
return 0;
}
card->para[1] = pnp_port_start(pnp_d, 0);
card->para[2] = pnp_port_start(pnp_d, 1);
card->para[0] = pnp_irq(pnp_d, 0);
if (card->para[0] == -1 || !card->para[1] ||
!card->para[2]) {
printk(KERN_ERR "NiccyPnP:some resources are "
"missing %ld/%lx/%lx\n",
card->para[0], card->para[1],
card->para[2]);
pnp_disable_dev(pnp_d);
return 0;
}
} else
printk(KERN_INFO "NiccyPnP: no ISAPnP card found\n");
}
#endif
if (card->para[1]) {
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;
cs->subtyp = NICCY_PNP;
cs->irq = card->para[0];
if (!request_region(cs->hw.niccy.isac, 2, "niccy data")) {
printk(KERN_WARNING "HiSax: NICCY data port %x-%x "
"already in use\n",
cs->hw.niccy.isac, cs->hw.niccy.isac + 1);
return 0;
}
if (!request_region(cs->hw.niccy.isac_ale, 2, "niccy addr")) {
printk(KERN_WARNING "HiSax: NICCY address port %x-%x "
"already in use\n",
cs->hw.niccy.isac_ale,
cs->hw.niccy.isac_ale + 1);
release_region(cs->hw.niccy.isac, 2);
return 0;
}
} else {
#ifdef CONFIG_PCI
static struct pci_dev *niccy_dev;
u_int pci_ioaddr;
cs->subtyp = 0;
if ((niccy_dev = hisax_find_pci_device(PCI_VENDOR_ID_SATSAGEM,
PCI_DEVICE_ID_SATSAGEM_NICCY,
niccy_dev))) {
if (pci_enable_device(niccy_dev))
return 0;
/* get IRQ */
if (!niccy_dev->irq) {
printk(KERN_WARNING
"Niccy: No IRQ for PCI card found\n");
return 0;
}
cs->irq = niccy_dev->irq;
cs->hw.niccy.cfg_reg = pci_resource_start(niccy_dev, 0);
if (!cs->hw.niccy.cfg_reg) {
printk(KERN_WARNING
"Niccy: No IO-Adr for PCI cfg found\n");
return 0;
}
pci_ioaddr = pci_resource_start(niccy_dev, 1);
if (!pci_ioaddr) {
printk(KERN_WARNING
"Niccy: No IO-Adr for PCI card found\n");
return 0;
}
cs->subtyp = NICCY_PCI;
} else {
printk(KERN_WARNING "Niccy: No PCI card found\n");
return 0;
}
cs->irq_flags |= IRQF_SHARED;
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_region(cs->hw.niccy.isac, 4, "niccy")) {
printk(KERN_WARNING
"HiSax: NICCY data port %x-%x already in use\n",
cs->hw.niccy.isac, cs->hw.niccy.isac + 4);
return 0;
}
if (!request_region(cs->hw.niccy.cfg_reg, 0x40, "niccy pci")) {
printk(KERN_WARNING
"HiSax: NICCY pci port %x-%x already in use\n",
cs->hw.niccy.cfg_reg,
cs->hw.niccy.cfg_reg + 0x40);
release_region(cs->hw.niccy.isac, 4);
return 0;
}
#else
printk(KERN_WARNING "Niccy: io0 0 and NO_PCI_BIOS\n");
printk(KERN_WARNING "Niccy: unable to config NICCY PCI\n");
return 0;
#endif /* CONFIG_PCI */
}
printk(KERN_INFO "HiSax: NICCY %s config irq:%d data:0x%X ale:0x%X\n",
(cs->subtyp == 1) ? "PnP" : "PCI",
cs->irq, cs->hw.niccy.isac, cs->hw.niccy.isac_ale);
setup_isac(cs);
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 = &niccy_card_msg;
cs->irq_func = &niccy_interrupt;
ISACVersion(cs, "Niccy:");
if (HscxVersion(cs, "Niccy:")) {
printk(KERN_WARNING "Niccy: wrong HSCX versions check IO "
"address\n");
release_io_niccy(cs);
return 0;
}
return 1;
}
