diva.c
/* diva.c.shtml,v 1.1.1.1 2002/08/19 05:50:13 fritz Exp
* diva.c low level stuff for Eicon.Diehl Diva Family ISDN cards
*
* Author Karsten Keil (keil@temic-ech.spacenet.de)
*
* Thanks to Eicon Technology Diehl GmbH & Co. oHG for documents and informations
*
*
* diva.c.shtml,v
* Revision 1.1.1.1 2002/08/19 05:50:13 fritz
* - initial import
*
* Revision 1.8 1998/05/25 12:57:46 keil
* HiSax golden code from certification, Don't use !!!
* No leased lines, no X75, but many changes.
*
* Revision 1.7 1998/04/15 16:42:36 keil
* new init code
* new PCI init (2.1.94)
*
* Revision 1.6 1998/03/07 22:56:57 tsbogend
* made HiSax working on Linux/Alpha
*
* Revision 1.5 1998/02/02 13:29:38 keil
* fast io
*
* Revision 1.4 1997/11/08 21:35:44 keil
* new l1 init
*
* Revision 1.3 1997/11/06 17:13:33 keil
* New 2.1 init code
*
* Revision 1.2 1997/10/29 18:55:55 keil
* changes for 2.1.60 (irq2dev_map)
*
* Revision 1.1 1997/09/18 17:11:20 keil
* first version
*
*
*/
#define __NO_VERSION__
#include <linux/config.h>
#include "hisax.h"
#include "isac.h"
#include "hscx.h"
#include "isdnl1.h"
#include <linux/pci.h>
extern const char *CardType[];
const char *Diva_revision = "1.1.1.1";
#define byteout(addr,val) outb(val,addr)
#define bytein(addr) inb(addr)
#define DIVA_HSCX_DATA 0
#define DIVA_HSCX_ADR 4
#define DIVA_ISA_ISAC_DATA 2
#define DIVA_ISA_ISAC_ADR 6
#define DIVA_ISA_CTRL 7
#define DIVA_PCI_ISAC_DATA 8
#define DIVA_PCI_ISAC_ADR 0xc
#define DIVA_PCI_CTRL 0x10
/* SUB Types */
#define DIVA_ISA 1
#define DIVA_PCI 2
/* PCI stuff */
#define PCI_VENDOR_EICON_DIEHL 0x1133
#define PCI_DIVA20PRO_ID 0xe001
#define PCI_DIVA20_ID 0xe002
#define PCI_DIVA20PRO_U_ID 0xe003
#define PCI_DIVA20_U_ID 0xe004
/* CTRL (Read) */
#define DIVA_IRQ_STAT 0x01
#define DIVA_EEPROM_SDA 0x02
/* CTRL (Write) */
#define DIVA_IRQ_REQ 0x01
#define DIVA_RESET 0x08
#define DIVA_EEPROM_CLK 0x40
#define DIVA_PCI_LED_A 0x10
#define DIVA_PCI_LED_B 0x20
#define DIVA_ISA_LED_A 0x20
#define DIVA_ISA_LED_B 0x40
#define DIVA_IRQ_CLR 0x80
static inline u_char
readreg(unsigned int ale, unsigned int adr, u_char off)
{
register u_char ret;
long flags;
save_flags(flags);
cli();
byteout(ale, off);
ret = bytein(adr);
restore_flags(flags);
return (ret);
}
static inline void
readfifo(unsigned int ale, unsigned int adr, u_char off, u_char * data, int size)
{
/* fifo read without cli because it's allready done */
byteout(ale, off);
insb(adr, data, size);
}
static inline void
writereg(unsigned int ale, unsigned int adr, u_char off, u_char data)
{
long flags;
save_flags(flags);
cli();
byteout(ale, off);
byteout(adr, data);
restore_flags(flags);
}
static inline void
writefifo(unsigned int ale, unsigned int adr, u_char off, u_char *data, int size)
{
/* fifo write without cli because it's allready done */
byteout(ale, off);
outsb(adr, data, size);
}
/* Interface functions */
static u_char
ReadISAC(struct IsdnCardState *cs, u_char offset)
{
return(readreg(cs->hw.diva.isac_adr, cs->hw.diva.isac, offset));
}
static void
WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
{
writereg(cs->hw.diva.isac_adr, cs->hw.diva.isac, offset, value);
}
static void
ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
{
readfifo(cs->hw.diva.isac_adr, cs->hw.diva.isac, 0, data, size);
}
static void
WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
{
writefifo(cs->hw.diva.isac_adr, cs->hw.diva.isac, 0, data, size);
}
static u_char
ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
{
return(readreg(cs->hw.diva.hscx_adr,
cs->hw.diva.hscx, offset + (hscx ? 0x40 : 0)));
}
static void
WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
{
writereg(cs->hw.diva.hscx_adr,
cs->hw.diva.hscx, offset + (hscx ? 0x40 : 0), value);
}
/*
* fast interrupt HSCX stuff goes here
*/
#define READHSCX(cs, nr, reg) readreg(cs->hw.diva.hscx_adr, \
cs->hw.diva.hscx, reg + (nr ? 0x40 : 0))
#define WRITEHSCX(cs, nr, reg, data) writereg(cs->hw.diva.hscx_adr, \
cs->hw.diva.hscx, reg + (nr ? 0x40 : 0), data)
#define READHSCXFIFO(cs, nr, ptr, cnt) readfifo(cs->hw.diva.hscx_adr, \
cs->hw.diva.hscx, (nr ? 0x40 : 0), ptr, cnt)
#define WRITEHSCXFIFO(cs, nr, ptr, cnt) writefifo(cs->hw.diva.hscx_adr, \
cs->hw.diva.hscx, (nr ? 0x40 : 0), ptr, cnt)
#include "hscx_irq.c"
static void
diva_interrupt(int intno, void *dev_id, struct pt_regs *regs)
{
struct IsdnCardState *cs = dev_id;
u_char val, sval, stat = 0;
int cnt=8;
if (!cs) {
printk(KERN_WARNING "Diva: Spurious interrupt!\n");
return;
}
while (((sval = bytein(cs->hw.diva.ctrl)) & DIVA_IRQ_REQ) && cnt) {
val = readreg(cs->hw.diva.hscx_adr, cs->hw.diva.hscx, HSCX_ISTA + 0x40);
if (val) {
hscx_int_main(cs, val);
stat |= 1;
}
val = readreg(cs->hw.diva.isac_adr, cs->hw.diva.isac, ISAC_ISTA);
if (val) {
isac_interrupt(cs, val);
stat |= 2;
}
cnt--;
}
if (!cnt)
printk(KERN_WARNING "Diva: IRQ LOOP\n");
if (stat & 1) {
writereg(cs->hw.diva.hscx_adr, cs->hw.diva.hscx, HSCX_MASK, 0xFF);
writereg(cs->hw.diva.hscx_adr, cs->hw.diva.hscx, HSCX_MASK + 0x40, 0xFF);
writereg(cs->hw.diva.hscx_adr, cs->hw.diva.hscx, HSCX_MASK, 0x0);
writereg(cs->hw.diva.hscx_adr, cs->hw.diva.hscx, HSCX_MASK + 0x40, 0x0);
}
if (stat & 2) {
writereg(cs->hw.diva.isac_adr, cs->hw.diva.isac, ISAC_MASK, 0xFF);
writereg(cs->hw.diva.isac_adr, cs->hw.diva.isac, ISAC_MASK, 0x0);
}
}
void
release_io_diva(struct IsdnCardState *cs)
{
int bytecnt;
del_timer(&cs->hw.diva.tl);
if (cs->subtyp == DIVA_ISA)
bytecnt = 8;
else
bytecnt = 32;
if (cs->hw.diva.cfg_reg) {
byteout(cs->hw.diva.ctrl, 0); /* LED off, Reset */
release_region(cs->hw.diva.cfg_reg, bytecnt);
}
}
static void
reset_diva(struct IsdnCardState *cs)
{
long flags;
save_flags(flags);
sti();
cs->hw.diva.ctrl_reg = 0; /* Reset On */
byteout(cs->hw.diva.ctrl, cs->hw.diva.ctrl_reg);
current->state = TASK_INTERRUPTIBLE;
current->timeout = jiffies + (10 * HZ) / 1000; /* Timeout 10ms */
schedule();
cs->hw.diva.ctrl_reg |= DIVA_RESET; /* Reset Off */
byteout(cs->hw.diva.ctrl, cs->hw.diva.ctrl_reg);
current->state = TASK_INTERRUPTIBLE;
current->timeout = jiffies + (10 * HZ) / 1000; /* Timeout 10ms */
schedule();
if (cs->subtyp == DIVA_ISA)
cs->hw.diva.ctrl_reg |= DIVA_ISA_LED_A;
else
cs->hw.diva.ctrl_reg |= DIVA_PCI_LED_A;
byteout(cs->hw.diva.ctrl, cs->hw.diva.ctrl_reg);
}
#define DIVA_ASSIGN 1
static void
diva_led_handler(struct IsdnCardState *cs)
{
int blink = 0;
del_timer(&cs->hw.diva.tl);
if (cs->hw.diva.status & DIVA_ASSIGN)
cs->hw.diva.ctrl_reg |= (DIVA_ISA == cs->subtyp) ?
DIVA_ISA_LED_A : DIVA_PCI_LED_A;
else {
cs->hw.diva.ctrl_reg ^= (DIVA_ISA == cs->subtyp) ?
DIVA_ISA_LED_A : DIVA_PCI_LED_A;
blink = 250;
}
if (cs->hw.diva.status & 0xf000)
cs->hw.diva.ctrl_reg |= (DIVA_ISA == cs->subtyp) ?
DIVA_ISA_LED_B : DIVA_PCI_LED_B;
else if (cs->hw.diva.status & 0x0f00) {
cs->hw.diva.ctrl_reg ^= (DIVA_ISA == cs->subtyp) ?
DIVA_ISA_LED_B : DIVA_PCI_LED_B;
blink = 500;
} else
cs->hw.diva.ctrl_reg &= ~((DIVA_ISA == cs->subtyp) ?
DIVA_ISA_LED_B : DIVA_PCI_LED_B);
byteout(cs->hw.diva.ctrl, cs->hw.diva.ctrl_reg);
if (blink) {
init_timer(&cs->hw.diva.tl);
cs->hw.diva.tl.expires = jiffies + ((blink * HZ) / 1000);
add_timer(&cs->hw.diva.tl);
}
}
static int
Diva_card_msg(struct IsdnCardState *cs, int mt, void *arg)
{
switch (mt) {
case CARD_RESET:
reset_diva(cs);
return(0);
case CARD_RELEASE:
release_io_diva(cs);
return(0);
case CARD_SETIRQ:
return(request_irq(cs->irq, &diva_interrupt,
I4L_IRQ_FLAG, "HiSax", cs));
case CARD_INIT:
inithscxisac(cs, 3);
return(0);
case CARD_TEST:
return(0);
case (MDL_REMOVE | REQUEST):
cs->hw.diva.status = 0;
break;
case (MDL_ASSIGN | REQUEST):
cs->hw.diva.status |= DIVA_ASSIGN;
break;
case MDL_INFO_SETUP:
if ((long)arg)
cs->hw.diva.status |= 0x0200;
else
cs->hw.diva.status |= 0x0100;
break;
case MDL_INFO_CONN:
if ((long)arg)
cs->hw.diva.status |= 0x2000;
else
cs->hw.diva.status |= 0x1000;
break;
case MDL_INFO_REL:
if ((long)arg) {
cs->hw.diva.status &= ~0x2000;
cs->hw.diva.status &= ~0x0200;
} else {
cs->hw.diva.status &= ~0x1000;
cs->hw.diva.status &= ~0x0100;
}
break;
}
diva_led_handler(cs);
return(0);
}
static struct pci_dev *dev_diva __initdata = NULL;
static struct pci_dev *dev_diva_u __initdata = NULL;
__initfunc(int
setup_diva(struct IsdnCard *card))
{
int bytecnt;
struct IsdnCardState *cs = card->cs;
char tmp[64];
strcpy(tmp, Diva_revision);
printk(KERN_INFO "HiSax: Eicon.Diehl Diva driver Rev. %s\n", HiSax_getrev(tmp));
if (cs->typ != ISDN_CTYPE_DIEHLDIVA)
return(0);
cs->hw.diva.status = 0;
if (card->para[1]) {
cs->subtyp = DIVA_ISA;
cs->hw.diva.ctrl_reg = 0;
cs->hw.diva.cfg_reg = card->para[1];
cs->hw.diva.ctrl = card->para[1] + DIVA_ISA_CTRL;
cs->hw.diva.isac = card->para[1] + DIVA_ISA_ISAC_DATA;
cs->hw.diva.hscx = card->para[1] + DIVA_HSCX_DATA;
cs->hw.diva.isac_adr = card->para[1] + DIVA_ISA_ISAC_ADR;
cs->hw.diva.hscx_adr = card->para[1] + DIVA_HSCX_ADR;
cs->irq = card->para[0];
bytecnt = 8;
} else {
#if CONFIG_PCI
if (!pci_present()) {
printk(KERN_ERR "Diva: no PCI bus present\n");
return(0);
}
cs->subtyp = 0;
if ((dev_diva = pci_find_device(PCI_VENDOR_EICON_DIEHL,
PCI_DIVA20_ID, dev_diva))) {
cs->subtyp = DIVA_PCI;
/* get IRQ */
cs->irq = dev_diva->irq;
/* get IO address */
cs->hw.diva.cfg_reg = dev_diva->base_address[2]
& PCI_BASE_ADDRESS_IO_MASK;
} else if ((dev_diva_u = pci_find_device(PCI_VENDOR_EICON_DIEHL,
PCI_DIVA20_U_ID, dev_diva_u))) {
cs->subtyp = DIVA_PCI;
/* get IRQ */
cs->irq = dev_diva_u->irq;
/* get IO address */
cs->hw.diva.cfg_reg = dev_diva_u->base_address[2]
& PCI_BASE_ADDRESS_IO_MASK;
} else {
printk(KERN_WARNING "Diva: No PCI card found\n");
return(0);
}
if (!cs->irq) {
printk(KERN_WARNING "Diva: No IRQ for PCI card found\n");
return(0);
}
if (!cs->hw.diva.cfg_reg) {
printk(KERN_WARNING "Diva: No IO-Adr for PCI card found\n");
return(0);
}
cs->hw.diva.ctrl = cs->hw.diva.cfg_reg + DIVA_PCI_CTRL;
cs->hw.diva.isac = cs->hw.diva.cfg_reg + DIVA_PCI_ISAC_DATA;
cs->hw.diva.hscx = cs->hw.diva.cfg_reg + DIVA_HSCX_DATA;
cs->hw.diva.isac_adr = cs->hw.diva.cfg_reg + DIVA_PCI_ISAC_ADR;
cs->hw.diva.hscx_adr = cs->hw.diva.cfg_reg + DIVA_HSCX_ADR;
bytecnt = 32;
#else
printk(KERN_WARNING "Diva: cfgreg 0 and NO_PCI_BIOS\n");
printk(KERN_WARNING "Diva: unable to config DIVA PCI\n");
return (0);
#endif /* CONFIG_PCI */
}
printk(KERN_INFO
"Diva: %s card configured at 0x%x IRQ %d\n",
(cs->subtyp == DIVA_ISA) ? "ISA" : "PCI",
cs->hw.diva.cfg_reg, cs->irq);
if (check_region(cs->hw.diva.cfg_reg, bytecnt)) {
printk(KERN_WARNING
"HiSax: %s config port %x-%x already in use\n",
CardType[card->typ],
cs->hw.diva.cfg_reg,
cs->hw.diva.cfg_reg + bytecnt);
return (0);
} else {
request_region(cs->hw.diva.cfg_reg, bytecnt, "diva isdn");
}
reset_diva(cs);
cs->hw.diva.tl.function = (void *) diva_led_handler;
cs->hw.diva.tl.data = (long) cs;
init_timer(&cs->hw.diva.tl);
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 = &Diva_card_msg;
ISACVersion(cs, "Diva:");
if (HscxVersion(cs, "Diva:")) {
printk(KERN_WARNING
"Diva: wrong HSCX versions check IO address\n");
release_io_diva(cs);
return (0);
}
return (1);
}
