1 /* $Id: gazel.c,v 2.19.2.4 2004/01/14 16:04:48 keil Exp $
3 * low level stuff for Gazel isdn cards
6 * based on source code from Karsten Keil
7 * Copyright by BeWan Systems
9 * This software may be used and distributed according to the terms
10 * of the GNU General Public License, incorporated herein by reference.
14 #include <linux/init.h>
20 #include <linux/pci.h>
22 static const char *gazel_revision = "$Revision: 2.19.2.4 $";
29 #define PLX_CNTRL 0x50 /* registre de controle PLX */
30 #define RESET_GAZEL 0x4
31 #define RESET_9050 0x40000000
32 #define PLX_INCSR 0x4C /* registre d'IT du 9050 */
33 #define INT_ISAC_EN 0x8 /* 1 = enable IT isac */
34 #define INT_ISAC 0x20 /* 1 = IT isac en cours */
35 #define INT_HSCX_EN 0x1 /* 1 = enable IT hscx */
36 #define INT_HSCX 0x4 /* 1 = IT hscx en cours */
37 #define INT_PCI_EN 0x40 /* 1 = enable IT PCI */
38 #define INT_IPAC_EN 0x3 /* enable IT ipac */
41 #define byteout(addr, val) outb(val, addr)
42 #define bytein(addr) inb(addr)
45 readreg(unsigned int adr, u_short off)
47 return bytein(adr + off);
51 writereg(unsigned int adr, u_short off, u_char data)
53 byteout(adr + off, data);
58 read_fifo(unsigned int adr, u_char *data, int size)
60 insb(adr, data, size);
64 write_fifo(unsigned int adr, u_char *data, int size)
66 outsb(adr, data, size);
70 readreg_ipac(unsigned int adr, u_short off)
75 ret = bytein(adr + 4);
80 writereg_ipac(unsigned int adr, u_short off, u_char data)
83 byteout(adr + 4, data);
88 read_fifo_ipac(unsigned int adr, u_short off, u_char *data, int size)
91 insb(adr + 4, data, size);
95 write_fifo_ipac(unsigned int adr, u_short off, u_char *data, int size)
98 outsb(adr + 4, data, size);
101 /* Interface functions */
104 ReadISAC(struct IsdnCardState *cs, u_char offset)
106 u_short off2 = offset;
108 switch (cs->subtyp) {
110 off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
113 return (readreg(cs->hw.gazel.isac, off2));
116 return (readreg_ipac(cs->hw.gazel.ipac, 0x80 + off2));
122 WriteISAC(struct IsdnCardState *cs, u_char offset, u_char value)
124 u_short off2 = offset;
126 switch (cs->subtyp) {
128 off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
131 writereg(cs->hw.gazel.isac, off2, value);
135 writereg_ipac(cs->hw.gazel.ipac, 0x80 + off2, value);
141 ReadISACfifo(struct IsdnCardState *cs, u_char *data, int size)
143 switch (cs->subtyp) {
146 read_fifo(cs->hw.gazel.isacfifo, data, size);
150 read_fifo_ipac(cs->hw.gazel.ipac, 0x80, data, size);
156 WriteISACfifo(struct IsdnCardState *cs, u_char *data, int size)
158 switch (cs->subtyp) {
161 write_fifo(cs->hw.gazel.isacfifo, data, size);
165 write_fifo_ipac(cs->hw.gazel.ipac, 0x80, data, size);
171 ReadHSCXfifo(struct IsdnCardState *cs, int hscx, u_char *data, int size)
173 switch (cs->subtyp) {
176 read_fifo(cs->hw.gazel.hscxfifo[hscx], data, size);
180 read_fifo_ipac(cs->hw.gazel.ipac, hscx * 0x40, data, size);
186 WriteHSCXfifo(struct IsdnCardState *cs, int hscx, u_char *data, int size)
188 switch (cs->subtyp) {
191 write_fifo(cs->hw.gazel.hscxfifo[hscx], data, size);
195 write_fifo_ipac(cs->hw.gazel.ipac, hscx * 0x40, data, size);
201 ReadHSCX(struct IsdnCardState *cs, int hscx, u_char offset)
203 u_short off2 = offset;
205 switch (cs->subtyp) {
207 off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
210 return (readreg(cs->hw.gazel.hscx[hscx], off2));
213 return (readreg_ipac(cs->hw.gazel.ipac, hscx * 0x40 + off2));
219 WriteHSCX(struct IsdnCardState *cs, int hscx, u_char offset, u_char value)
221 u_short off2 = offset;
223 switch (cs->subtyp) {
225 off2 = ((off2 << 8 & 0xf000) | (off2 & 0xf));
228 writereg(cs->hw.gazel.hscx[hscx], off2, value);
232 writereg_ipac(cs->hw.gazel.ipac, hscx * 0x40 + off2, value);
238 * fast interrupt HSCX stuff goes here
241 #define READHSCX(cs, nr, reg) ReadHSCX(cs, nr, reg)
242 #define WRITEHSCX(cs, nr, reg, data) WriteHSCX(cs, nr, reg, data)
243 #define READHSCXFIFO(cs, nr, ptr, cnt) ReadHSCXfifo(cs, nr, ptr, cnt)
244 #define WRITEHSCXFIFO(cs, nr, ptr, cnt) WriteHSCXfifo(cs, nr, ptr, cnt)
246 #include "hscx_irq.c"
249 gazel_interrupt(int intno, void *dev_id)
252 struct IsdnCardState *cs = dev_id;
253 u_char valisac, valhscx;
257 spin_lock_irqsave(&cs->lock, flags);
259 valhscx = ReadHSCX(cs, 1, HSCX_ISTA);
261 hscx_int_main(cs, valhscx);
262 valisac = ReadISAC(cs, ISAC_ISTA);
264 isac_interrupt(cs, valisac);
266 } while ((valhscx || valisac) && (count < MAXCOUNT));
268 WriteHSCX(cs, 0, HSCX_MASK, 0xFF);
269 WriteHSCX(cs, 1, HSCX_MASK, 0xFF);
270 WriteISAC(cs, ISAC_MASK, 0xFF);
271 WriteISAC(cs, ISAC_MASK, 0x0);
272 WriteHSCX(cs, 0, HSCX_MASK, 0x0);
273 WriteHSCX(cs, 1, HSCX_MASK, 0x0);
274 spin_unlock_irqrestore(&cs->lock, flags);
280 gazel_interrupt_ipac(int intno, void *dev_id)
282 struct IsdnCardState *cs = dev_id;
287 spin_lock_irqsave(&cs->lock, flags);
288 ista = ReadISAC(cs, IPAC_ISTA - 0x80);
291 val = ReadHSCX(cs, 1, HSCX_ISTA);
299 hscx_int_main(cs, val);
303 val = 0xfe & ReadISAC(cs, ISAC_ISTA);
305 isac_interrupt(cs, val);
310 isac_interrupt(cs, val);
312 ista = ReadISAC(cs, IPAC_ISTA - 0x80);
315 while ((ista & 0x3f) && (count < MAXCOUNT));
317 WriteISAC(cs, IPAC_MASK - 0x80, 0xFF);
318 WriteISAC(cs, IPAC_MASK - 0x80, 0xC0);
319 spin_unlock_irqrestore(&cs->lock, flags);
324 release_io_gazel(struct IsdnCardState *cs)
328 switch (cs->subtyp) {
330 for (i = 0x0000; i < 0xC000; i += 0x1000)
331 release_region(i + cs->hw.gazel.hscx[0], 16);
332 release_region(0xC000 + cs->hw.gazel.hscx[0], 1);
336 release_region(cs->hw.gazel.hscx[0], 0x100);
337 release_region(cs->hw.gazel.cfg_reg, 0x80);
341 release_region(cs->hw.gazel.ipac, 0x8);
342 release_region(cs->hw.gazel.cfg_reg, 0x80);
346 release_region(cs->hw.gazel.ipac, 8);
352 reset_gazel(struct IsdnCardState *cs)
354 unsigned long plxcntrl, addr = cs->hw.gazel.cfg_reg;
356 switch (cs->subtyp) {
358 writereg(addr, 0, 0);
360 writereg(addr, 0, 1);
364 plxcntrl = inl(addr + PLX_CNTRL);
365 plxcntrl |= (RESET_9050 + RESET_GAZEL);
366 outl(plxcntrl, addr + PLX_CNTRL);
367 plxcntrl &= ~(RESET_9050 + RESET_GAZEL);
369 outl(plxcntrl, addr + PLX_CNTRL);
371 outb(INT_ISAC_EN + INT_HSCX_EN + INT_PCI_EN, addr + PLX_INCSR);
374 plxcntrl = inl(addr + PLX_CNTRL);
375 plxcntrl |= (RESET_9050 + RESET_GAZEL);
376 outl(plxcntrl, addr + PLX_CNTRL);
377 plxcntrl &= ~(RESET_9050 + RESET_GAZEL);
378 WriteISAC(cs, IPAC_POTA2 - 0x80, 0x20);
380 outl(plxcntrl, addr + PLX_CNTRL);
382 WriteISAC(cs, IPAC_POTA2 - 0x80, 0x00);
383 WriteISAC(cs, IPAC_ACFG - 0x80, 0xff);
384 WriteISAC(cs, IPAC_AOE - 0x80, 0x0);
385 WriteISAC(cs, IPAC_MASK - 0x80, 0xff);
386 WriteISAC(cs, IPAC_CONF - 0x80, 0x1);
387 outb(INT_IPAC_EN + INT_PCI_EN, addr + PLX_INCSR);
388 WriteISAC(cs, IPAC_MASK - 0x80, 0xc0);
391 WriteISAC(cs, IPAC_POTA2 - 0x80, 0x20);
393 WriteISAC(cs, IPAC_POTA2 - 0x80, 0x00);
394 WriteISAC(cs, IPAC_ACFG - 0x80, 0xff);
395 WriteISAC(cs, IPAC_AOE - 0x80, 0x0);
396 WriteISAC(cs, IPAC_MASK - 0x80, 0xff);
397 WriteISAC(cs, IPAC_CONF - 0x80, 0x1);
398 WriteISAC(cs, IPAC_MASK - 0x80, 0xc0);
405 Gazel_card_msg(struct IsdnCardState *cs, int mt, void *arg)
411 spin_lock_irqsave(&cs->lock, flags);
413 spin_unlock_irqrestore(&cs->lock, flags);
416 release_io_gazel(cs);
419 spin_lock_irqsave(&cs->lock, flags);
421 if ((cs->subtyp == R647) || (cs->subtyp == R685)) {
423 for (i = 0; i < (2 + MAX_WAITING_CALLS); i++) {
424 cs->bcs[i].hw.hscx.tsaxr0 = 0x1f;
425 cs->bcs[i].hw.hscx.tsaxr1 = 0x23;
428 spin_unlock_irqrestore(&cs->lock, flags);
437 reserve_regions(struct IsdnCard *card, struct IsdnCardState *cs)
439 unsigned int i, j, base = 0, adr = 0, len = 0;
441 switch (cs->subtyp) {
443 base = cs->hw.gazel.hscx[0];
444 if (!request_region(adr = (0xC000 + base), len = 1, "gazel"))
446 for (i = 0x0000; i < 0xC000; i += 0x1000) {
447 if (!request_region(adr = (i + base), len = 16, "gazel"))
451 for (j = 0; j < i; j += 0x1000)
452 release_region(j + base, 16);
453 release_region(0xC000 + base, 1);
459 if (!request_region(adr = cs->hw.gazel.hscx[0], len = 0x100, "gazel"))
461 if (!request_region(adr = cs->hw.gazel.cfg_reg, len = 0x80, "gazel")) {
462 release_region(cs->hw.gazel.hscx[0], 0x100);
468 if (!request_region(adr = cs->hw.gazel.ipac, len = 0x8, "gazel"))
470 if (!request_region(adr = cs->hw.gazel.cfg_reg, len = 0x80, "gazel")) {
471 release_region(cs->hw.gazel.ipac, 8);
477 if (!request_region(adr = cs->hw.gazel.ipac, len = 0x8, "gazel"))
485 printk(KERN_WARNING "Gazel: io ports 0x%x-0x%x already in use\n",
490 static int setup_gazelisa(struct IsdnCard *card, struct IsdnCardState *cs)
492 printk(KERN_INFO "Gazel: ISA PnP card automatic recognition\n");
493 // we got an irq parameter, assume it is an ISA card
494 // R742 decodes address even in not started...
495 // R647 returns FF if not present or not started
496 // eventually needs improvment
497 if (readreg_ipac(card->para[1], IPAC_ID) == 1)
503 cs->hw.gazel.cfg_reg = card->para[1] + 0xC000;
504 cs->hw.gazel.ipac = card->para[1];
505 cs->hw.gazel.isac = card->para[1] + 0x8000;
506 cs->hw.gazel.hscx[0] = card->para[1];
507 cs->hw.gazel.hscx[1] = card->para[1] + 0x4000;
508 cs->irq = card->para[0];
509 cs->hw.gazel.isacfifo = cs->hw.gazel.isac;
510 cs->hw.gazel.hscxfifo[0] = cs->hw.gazel.hscx[0];
511 cs->hw.gazel.hscxfifo[1] = cs->hw.gazel.hscx[1];
513 switch (cs->subtyp) {
515 printk(KERN_INFO "Gazel: Card ISA R647/R648 found\n");
516 cs->dc.isac.adf2 = 0x87;
518 "Gazel: config irq:%d isac:0x%X cfg:0x%X\n",
519 cs->irq, cs->hw.gazel.isac, cs->hw.gazel.cfg_reg);
521 "Gazel: hscx A:0x%X hscx B:0x%X\n",
522 cs->hw.gazel.hscx[0], cs->hw.gazel.hscx[1]);
526 printk(KERN_INFO "Gazel: Card ISA R742 found\n");
527 test_and_set_bit(HW_IPAC, &cs->HW_Flags);
529 "Gazel: config irq:%d ipac:0x%X\n",
530 cs->irq, cs->hw.gazel.ipac);
538 static struct pci_dev *dev_tel = NULL;
540 static int setup_gazelpci(struct IsdnCardState *cs)
542 u_int pci_ioaddr0 = 0, pci_ioaddr1 = 0;
543 u_char pci_irq = 0, found;
544 u_int nbseek, seekcard;
546 printk(KERN_WARNING "Gazel: PCI card automatic recognition\n");
549 seekcard = PCI_DEVICE_ID_PLX_R685;
550 for (nbseek = 0; nbseek < 4; nbseek++) {
551 if ((dev_tel = hisax_find_pci_device(PCI_VENDOR_ID_PLX,
552 seekcard, dev_tel))) {
553 if (pci_enable_device(dev_tel))
555 pci_irq = dev_tel->irq;
556 pci_ioaddr0 = pci_resource_start(dev_tel, 1);
557 pci_ioaddr1 = pci_resource_start(dev_tel, 2);
564 case PCI_DEVICE_ID_PLX_R685:
565 seekcard = PCI_DEVICE_ID_PLX_R753;
567 case PCI_DEVICE_ID_PLX_R753:
568 seekcard = PCI_DEVICE_ID_PLX_DJINN_ITOO;
570 case PCI_DEVICE_ID_PLX_DJINN_ITOO:
571 seekcard = PCI_DEVICE_ID_PLX_OLITEC;
577 printk(KERN_WARNING "Gazel: No PCI card found\n");
581 printk(KERN_WARNING "Gazel: No IRQ for PCI card found\n");
584 cs->hw.gazel.pciaddr[0] = pci_ioaddr0;
585 cs->hw.gazel.pciaddr[1] = pci_ioaddr1;
587 pci_ioaddr1 &= 0xfffe;
588 cs->hw.gazel.cfg_reg = pci_ioaddr0 & 0xfffe;
589 cs->hw.gazel.ipac = pci_ioaddr1;
590 cs->hw.gazel.isac = pci_ioaddr1 + 0x80;
591 cs->hw.gazel.hscx[0] = pci_ioaddr1;
592 cs->hw.gazel.hscx[1] = pci_ioaddr1 + 0x40;
593 cs->hw.gazel.isacfifo = cs->hw.gazel.isac;
594 cs->hw.gazel.hscxfifo[0] = cs->hw.gazel.hscx[0];
595 cs->hw.gazel.hscxfifo[1] = cs->hw.gazel.hscx[1];
597 cs->irq_flags |= IRQF_SHARED;
600 case PCI_DEVICE_ID_PLX_R685:
601 printk(KERN_INFO "Gazel: Card PCI R685 found\n");
603 cs->dc.isac.adf2 = 0x87;
605 "Gazel: config irq:%d isac:0x%X cfg:0x%X\n",
606 cs->irq, cs->hw.gazel.isac, cs->hw.gazel.cfg_reg);
608 "Gazel: hscx A:0x%X hscx B:0x%X\n",
609 cs->hw.gazel.hscx[0], cs->hw.gazel.hscx[1]);
611 case PCI_DEVICE_ID_PLX_R753:
612 case PCI_DEVICE_ID_PLX_DJINN_ITOO:
613 case PCI_DEVICE_ID_PLX_OLITEC:
614 printk(KERN_INFO "Gazel: Card PCI R753 found\n");
616 test_and_set_bit(HW_IPAC, &cs->HW_Flags);
618 "Gazel: config irq:%d ipac:0x%X cfg:0x%X\n",
619 cs->irq, cs->hw.gazel.ipac, cs->hw.gazel.cfg_reg);
625 #endif /* CONFIG_PCI */
627 int setup_gazel(struct IsdnCard *card)
629 struct IsdnCardState *cs = card->cs;
633 strcpy(tmp, gazel_revision);
634 printk(KERN_INFO "Gazel: Driver Revision %s\n", HiSax_getrev(tmp));
636 if (cs->typ != ISDN_CTYPE_GAZEL)
640 if (setup_gazelisa(card, cs))
645 if (setup_gazelpci(cs))
648 printk(KERN_WARNING "Gazel: Card PCI requested and NO_PCI_BIOS, unable to config\n");
650 #endif /* CONFIG_PCI */
653 if (reserve_regions(card, cs)) {
656 if (reset_gazel(cs)) {
657 printk(KERN_WARNING "Gazel: wrong IRQ\n");
658 release_io_gazel(cs);
661 cs->readisac = &ReadISAC;
662 cs->writeisac = &WriteISAC;
663 cs->readisacfifo = &ReadISACfifo;
664 cs->writeisacfifo = &WriteISACfifo;
665 cs->BC_Read_Reg = &ReadHSCX;
666 cs->BC_Write_Reg = &WriteHSCX;
667 cs->BC_Send_Data = &hscx_fill_fifo;
668 cs->cardmsg = &Gazel_card_msg;
670 switch (cs->subtyp) {
673 cs->irq_func = &gazel_interrupt;
674 ISACVersion(cs, "Gazel:");
675 if (HscxVersion(cs, "Gazel:")) {
677 "Gazel: wrong HSCX versions check IO address\n");
678 release_io_gazel(cs);
684 cs->irq_func = &gazel_interrupt_ipac;
685 val = ReadISAC(cs, IPAC_ID - 0x80);
686 printk(KERN_INFO "Gazel: IPAC version %x\n", val);