sedlbauer.c

arm平台上的uclinux系统全部源代码

		if (ista & 0x01)
			val |= 0x01;
		if (ista & 0x04)
			val |= 0x02;
		if (ista & 0x08)
			val |= 0x04;
		if (val)
			hscx_int_main(cs, val);
	}
	if (ista & 0x20) {
		val = 0xfe & readreg(cs->hw.sedl.adr, cs->hw.sedl.isac, ISAC_ISTA | 0x80);
		if (val) {
			isac_interrupt(cs, val);
		}
	}
	if (ista & 0x10) {
		val = 0x01;
		isac_interrupt(cs, val);
	}
	ista  = readreg(cs->hw.sedl.adr, cs->hw.sedl.isac, IPAC_ISTA);
	if ((ista & 0x3f) && icnt) {
		icnt--;
		goto Start_IPAC;
	}
	if (!icnt)
		printk(KERN_WARNING "Sedlbauer IRQ LOOP\n");
	writereg(cs->hw.sedl.adr, cs->hw.sedl.isac, IPAC_MASK, 0xFF);
	writereg(cs->hw.sedl.adr, cs->hw.sedl.isac, IPAC_MASK, 0xC0);
}

static void
sedlbauer_interrupt_isar(int intno, void *dev_id, struct pt_regs *regs)
{
	struct IsdnCardState *cs = dev_id;
	u_char val;
	int cnt = 20;

	if (!cs) {
		printk(KERN_WARNING "Sedlbauer: Spurious interrupt!\n");
		return;
	}

	val = readreg(cs->hw.sedl.adr, cs->hw.sedl.hscx, ISAR_IRQBIT);
      Start_ISAR:
	if (val & ISAR_IRQSTA)
		isar_int_main(cs);
	val = readreg(cs->hw.sedl.adr, cs->hw.sedl.isac, ISAC_ISTA);
      Start_ISAC:
	if (val)
		isac_interrupt(cs, val);
	val = readreg(cs->hw.sedl.adr, cs->hw.sedl.hscx, ISAR_IRQBIT);
	if ((val & ISAR_IRQSTA) && --cnt) {
		if (cs->debug & L1_DEB_HSCX)
			debugl1(cs, "ISAR IntStat after IntRoutine");
		goto Start_ISAR;
	}
	val = readreg(cs->hw.sedl.adr, cs->hw.sedl.isac, ISAC_ISTA);
	if (val && --cnt) {
		if (cs->debug & L1_DEB_ISAC)
			debugl1(cs, "ISAC IntStat after IntRoutine");
		goto Start_ISAC;
	}
	if (!cnt)
		printk(KERN_WARNING "Sedlbauer IRQ LOOP\n");

	writereg(cs->hw.sedl.adr, cs->hw.sedl.hscx, ISAR_IRQBIT, 0);
	writereg(cs->hw.sedl.adr, cs->hw.sedl.isac, ISAC_MASK, 0xFF);
	writereg(cs->hw.sedl.adr, cs->hw.sedl.isac, ISAC_MASK, 0x0);
	writereg(cs->hw.sedl.adr, cs->hw.sedl.hscx, ISAR_IRQBIT, ISAR_IRQMSK);
}

void
release_io_sedlbauer(struct IsdnCardState *cs)
{
	int bytecnt = (cs->subtyp == SEDL_SPEED_FAX) ? 16 : 8;

	if (cs->hw.sedl.bus == SEDL_BUS_PCI) {
		bytecnt = 256;
	}
	if (cs->hw.sedl.cfg_reg)
		release_region(cs->hw.sedl.cfg_reg, bytecnt);
}

static void
reset_sedlbauer(struct IsdnCardState *cs)
{
	long flags;

	printk(KERN_INFO "Sedlbauer: resetting card\n");

	if (!((cs->hw.sedl.bus == SEDL_BUS_PCMCIA) &&
	   (cs->hw.sedl.chip == SEDL_CHIP_ISAC_HSCX))) {
		if (cs->hw.sedl.chip == SEDL_CHIP_IPAC) {
			writereg(cs->hw.sedl.adr, cs->hw.sedl.isac, IPAC_POTA2, 0x20);
			save_flags(flags);
			sti();
			current->state = TASK_INTERRUPTIBLE;
			current->timeout = jiffies + 1;
			schedule();
			writereg(cs->hw.sedl.adr, cs->hw.sedl.isac, IPAC_POTA2, 0x0);
			current->state = TASK_INTERRUPTIBLE;
			current->timeout = jiffies + 1;
			schedule();
			writereg(cs->hw.sedl.adr, cs->hw.sedl.isac, IPAC_CONF, 0x0);
			writereg(cs->hw.sedl.adr, cs->hw.sedl.isac, IPAC_ACFG, 0xff);
			writereg(cs->hw.sedl.adr, cs->hw.sedl.isac, IPAC_AOE, 0x0);
			writereg(cs->hw.sedl.adr, cs->hw.sedl.isac, IPAC_MASK, 0xc0);
			writereg(cs->hw.sedl.adr, cs->hw.sedl.isac, IPAC_PCFG, 0x12);
			restore_flags(flags);
		} else {		
			byteout(cs->hw.sedl.reset_on, SEDL_RESET);	/* Reset On */
			save_flags(flags);
			sti();
			current->state = TASK_INTERRUPTIBLE;
			current->timeout = jiffies + 1;
			schedule();
			byteout(cs->hw.sedl.reset_off, 0);	/* Reset Off */
			current->state = TASK_INTERRUPTIBLE;
			current->timeout = jiffies + 1;
			schedule();
			restore_flags(flags);
		}
	}
}

static int
Sedl_card_msg(struct IsdnCardState *cs, int mt, void *arg)
{
	switch (mt) {
		case CARD_RESET:
			reset_sedlbauer(cs);
			return(0);
		case CARD_RELEASE:
			release_io_sedlbauer(cs);
			return(0);
		case CARD_SETIRQ:
			if (cs->hw.sedl.chip == SEDL_CHIP_ISAC_ISAR) {
				return(request_irq(cs->irq, &sedlbauer_interrupt_isar,
					I4L_IRQ_FLAG, "HiSax", cs));
			} else if (cs->hw.sedl.chip == SEDL_CHIP_IPAC) {
				return(request_irq(cs->irq, &sedlbauer_interrupt_ipac,
					I4L_IRQ_FLAG, "HiSax", cs));
			} else {
				return(request_irq(cs->irq, &sedlbauer_interrupt,
					I4L_IRQ_FLAG, "HiSax", cs));
			}
		case CARD_INIT:
			if (cs->hw.sedl.chip == SEDL_CHIP_ISAC_ISAR) {
				clear_pending_isac_ints(cs);
				writereg(cs->hw.sedl.adr, cs->hw.sedl.hscx,
					ISAR_IRQBIT, 0);
				initisac(cs);
				initisar(cs);
				/* Reenable all IRQ */
				cs->writeisac(cs, ISAC_MASK, 0);
				/* RESET Receiver and Transmitter */
				cs->writeisac(cs, ISAC_CMDR, 0x41);
			} else {
				inithscxisac(cs, 3);
			}
			return(0);
		case CARD_TEST:
			return(0);
		case CARD_LOAD_FIRM:
			if (cs->hw.sedl.chip == SEDL_CHIP_ISAC_ISAR) {
				if (isar_load_firmware(cs, arg))
					return(1);
				else 
					ll_run(cs);
			}
			return(0);
	}
	return(0);
}


#ifdef SEDLBAUER_PCI
static  int pci_index __initdata = 0;
#endif

__initfunc(int
setup_sedlbauer(struct IsdnCard *card))
{
	int bytecnt, ver, val;
	struct IsdnCardState *cs = card->cs;
	char tmp[64];

	strcpy(tmp, Sedlbauer_revision);
	printk(KERN_INFO "HiSax: Sedlbauer driver Rev. %s\n", HiSax_getrev(tmp));
	
 	if (cs->typ == ISDN_CTYPE_SEDLBAUER) {
 		cs->subtyp = SEDL_SPEED_CARD_WIN;
		cs->hw.sedl.bus = SEDL_BUS_ISA;
		cs->hw.sedl.chip = SEDL_CHIP_TEST;
 	} else if (cs->typ == ISDN_CTYPE_SEDLBAUER_PCMCIA) {	
 		cs->subtyp = SEDL_SPEED_STAR;
		cs->hw.sedl.bus = SEDL_BUS_PCMCIA;
		cs->hw.sedl.chip = SEDL_CHIP_TEST;
 	} else if (cs->typ == ISDN_CTYPE_SEDLBAUER_FAX) {	
 		cs->subtyp = SEDL_SPEED_FAX;
		cs->hw.sedl.bus = SEDL_BUS_ISA;
		cs->hw.sedl.chip = SEDL_CHIP_ISAC_ISAR;
 	} else
		return (0);

	bytecnt = 8;
	if (card->para[1]) {
		cs->hw.sedl.cfg_reg = card->para[1];
		cs->irq = card->para[0];
		if (cs->hw.sedl.chip == SEDL_CHIP_ISAC_ISAR) {
			bytecnt = 16;
		}
	} else {
/* Probe for Sedlbauer speed pci */
#if SEDLBAUER_PCI
#if CONFIG_PCI
		for (; pci_index < 255; pci_index++) {
			unsigned char pci_bus, pci_device_fn;
			unsigned int ioaddr;
			unsigned char irq;

			if (pcibios_find_device (PCI_VENDOR_SEDLBAUER,
						PCI_SPEEDPCI_ID, pci_index,
						&pci_bus, &pci_device_fn) != 0) {
				continue;
			}
			pcibios_read_config_byte(pci_bus, pci_device_fn,
					PCI_INTERRUPT_LINE, &irq);
			pcibios_read_config_dword(pci_bus, pci_device_fn,
					PCI_BASE_ADDRESS_0, &ioaddr);
			cs->irq = irq;
			cs->hw.sedl.cfg_reg = ioaddr & PCI_BASE_ADDRESS_IO_MASK; 
			if (!cs->hw.sedl.cfg_reg) {
				printk(KERN_WARNING "Sedlbauer: No IO-Adr for PCI card found\n");
				return(0);
			}
			cs->hw.sedl.bus = SEDL_BUS_PCI;
			cs->hw.sedl.chip = SEDL_CHIP_IPAC;
			cs->subtyp = SEDL_SPEED_PCI;
			bytecnt = 256;
			byteout(cs->hw.sedl.cfg_reg, 0xff);
			byteout(cs->hw.sedl.cfg_reg, 0x00);
			byteout(cs->hw.sedl.cfg_reg+ 2, 0xdd);
			byteout(cs->hw.sedl.cfg_reg+ 5, 0x02);
			break;
		}	
		if (pci_index == 255) {
			printk(KERN_WARNING "Sedlbauer: No PCI card found\n");
			return(0);
		}
		pci_index++;
#else
		printk(KERN_WARNING "Sedlbauer: NO_PCI_BIOS\n");
		return (0);
#endif /* CONFIG_PCI */
#endif /* SEDLBAUER_PCI */
	}	
	
       	/* In case of the sedlbauer pcmcia card, this region is in use,
           reserved for us by the card manager. So we do not check it
           here, it would fail. */
	if (cs->hw.sedl.bus != SEDL_BUS_PCMCIA &&
		check_region((cs->hw.sedl.cfg_reg), bytecnt)) {
		printk(KERN_WARNING
			"HiSax: %s config port %x-%x already in use\n",
			CardType[card->typ],
			cs->hw.sedl.cfg_reg,
			cs->hw.sedl.cfg_reg + bytecnt);
			return (0);
	} else {
		request_region(cs->hw.sedl.cfg_reg, bytecnt, "sedlbauer isdn");
	}

	printk(KERN_INFO
	       "Sedlbauer: defined at 0x%x-0x%x IRQ %d\n",
	       cs->hw.sedl.cfg_reg,
	       cs->hw.sedl.cfg_reg + bytecnt,
	       cs->irq);

	cs->BC_Read_Reg = &ReadHSCX;
	cs->BC_Write_Reg = &WriteHSCX;
	cs->BC_Send_Data = &hscx_fill_fifo;
	cs->cardmsg = &Sedl_card_msg;

/*
 * testing ISA and PCMCIA Cards for IPAC, default is ISAC 
 * do not test for PCI card, because ports are different
 * and PCI card uses only IPAC (for the moment)
 */	
	if (cs->hw.sedl.bus != SEDL_BUS_PCI) {
		val = readreg(cs->hw.sedl.cfg_reg + SEDL_IPAC_ANY_ADR,
        	        cs->hw.sedl.cfg_reg + SEDL_IPAC_ANY_IPAC, IPAC_ID);
	        if (val == 1) {
		/* IPAC */
                	cs->subtyp = SEDL_SPEED_WIN2_PC104;
			if (cs->hw.sedl.bus == SEDL_BUS_PCMCIA) {
				cs->subtyp = SEDL_SPEED_STAR2;
			}
			cs->hw.sedl.chip = SEDL_CHIP_IPAC;
		} else {
		/* ISAC_HSCX oder ISAC_ISAR */
			if (cs->hw.sedl.chip == SEDL_CHIP_TEST) {
				cs->hw.sedl.chip = SEDL_CHIP_ISAC_HSCX;
			}
		}
	}

/*
 * hw.sedl.chip is now properly set
 */
	printk(KERN_INFO "Sedlbauer: %s detected\n",
		Sedlbauer_Types[cs->subtyp]);


	if (cs->hw.sedl.chip == SEDL_CHIP_IPAC) {
	/* IPAC */
		if (cs->hw.sedl.bus == SEDL_BUS_PCI) {
	                cs->hw.sedl.adr  = cs->hw.sedl.cfg_reg + SEDL_IPAC_PCI_ADR;
        	        cs->hw.sedl.isac = cs->hw.sedl.cfg_reg + SEDL_IPAC_PCI_IPAC;
                	cs->hw.sedl.hscx = cs->hw.sedl.cfg_reg + SEDL_IPAC_PCI_IPAC;
		} else {
	                cs->hw.sedl.adr  = cs->hw.sedl.cfg_reg + SEDL_IPAC_ANY_ADR;
        	        cs->hw.sedl.isac = cs->hw.sedl.cfg_reg + SEDL_IPAC_ANY_IPAC;
                	cs->hw.sedl.hscx = cs->hw.sedl.cfg_reg + SEDL_IPAC_ANY_IPAC;
		}
                test_and_set_bit(HW_IPAC, &cs->HW_Flags);
                cs->readisac = &ReadISAC_IPAC;
                cs->writeisac = &WriteISAC_IPAC;
                cs->readisacfifo = &ReadISACfifo_IPAC;
                cs->writeisacfifo = &WriteISACfifo_IPAC;

		val = readreg(cs->hw.sedl.adr,cs->hw.sedl.isac, IPAC_ID);
                printk(KERN_INFO "Sedlbauer: IPAC version %x\n", val);
		reset_sedlbauer(cs);
	} else {
	/* ISAC_HSCX oder ISAC_ISAR */
		cs->readisac = &ReadISAC;
		cs->writeisac = &WriteISAC;
		cs->readisacfifo = &ReadISACfifo;
		cs->writeisacfifo = &WriteISACfifo;
		if (cs->hw.sedl.chip == SEDL_CHIP_ISAC_ISAR) {
			cs->hw.sedl.adr = cs->hw.sedl.cfg_reg + SEDL_ISAR_ISA_ADR;
			cs->hw.sedl.isac = cs->hw.sedl.cfg_reg + SEDL_ISAR_ISA_ISAC;
			cs->hw.sedl.hscx = cs->hw.sedl.cfg_reg + SEDL_ISAR_ISA_ISAR;
			cs->hw.sedl.reset_on = cs->hw.sedl.cfg_reg + SEDL_ISAR_ISA_ISAR_RESET_ON;
			cs->hw.sedl.reset_off = cs->hw.sedl.cfg_reg + SEDL_ISAR_ISA_ISAR_RESET_OFF;
			cs->bcs[0].hw.isar.reg = &cs->hw.sedl.isar;
			cs->bcs[1].hw.isar.reg = &cs->hw.sedl.isar;
			test_and_set_bit(HW_ISAR, &cs->HW_Flags);
	
			ISACVersion(cs, "Sedlbauer:");
		
			cs->BC_Read_Reg = &ReadISAR;
			cs->BC_Write_Reg = &WriteISAR;
			cs->BC_Send_Data = &isar_fill_fifo;
			ver = ISARVersion(cs, "Sedlbauer:");
			if (ver < 0) {
				printk(KERN_WARNING
					"Sedlbauer: wrong ISAR version (ret = %d)\n", ver);
				release_io_sedlbauer(cs);
				return (0);
			}
		} else {
			if (cs->hw.sedl.bus == SEDL_BUS_PCMCIA) {
				cs->hw.sedl.adr = cs->hw.sedl.cfg_reg + SEDL_HSCX_PCMCIA_ADR;
				cs->hw.sedl.isac = cs->hw.sedl.cfg_reg + SEDL_HSCX_PCMCIA_ISAC;
				cs->hw.sedl.hscx = cs->hw.sedl.cfg_reg + SEDL_HSCX_PCMCIA_HSCX;
				cs->hw.sedl.reset_on = cs->hw.sedl.cfg_reg + SEDL_HSCX_PCMCIA_RESET;
				cs->hw.sedl.reset_off = cs->hw.sedl.cfg_reg + SEDL_HSCX_PCMCIA_RESET;
			} else {
				cs->hw.sedl.adr = cs->hw.sedl.cfg_reg + SEDL_HSCX_ISA_ADR;
				cs->hw.sedl.isac = cs->hw.sedl.cfg_reg + SEDL_HSCX_ISA_ISAC;
				cs->hw.sedl.hscx = cs->hw.sedl.cfg_reg + SEDL_HSCX_ISA_HSCX;
				cs->hw.sedl.reset_on = cs->hw.sedl.cfg_reg + SEDL_HSCX_ISA_RESET_ON;
				cs->hw.sedl.reset_off = cs->hw.sedl.cfg_reg + SEDL_HSCX_ISA_RESET_OFF;
			}
			ISACVersion(cs, "Sedlbauer:");
		
			if (HscxVersion(cs, "Sedlbauer:")) {
				printk(KERN_WARNING
					"Sedlbauer: wrong HSCX versions check IO address\n");
				release_io_sedlbauer(cs);
				return (0);
			}
			reset_sedlbauer(cs);
		}
	}
	return (1);
}