Esempio n. 1
0
File: elsa.c Progetto: nhanh0/hah
static void
elsa_interrupt_ipac(int intno, void *dev_id, struct pt_regs *regs)
{
	struct IsdnCardState *cs = dev_id;
	u_char ista,val;
	int icnt=5;

	if (!cs) {
		printk(KERN_WARNING "Elsa: Spurious interrupt!\n");
		return;
	}
	if (cs->subtyp == ELSA_QS1000PCI || cs->subtyp == ELSA_QS3000PCI) {
		val = bytein(cs->hw.elsa.cfg + 0x4c); /* PCI IRQ */
		if (!(val & ELSA_PCI_IRQ_MASK))
			return;
	}
#if ARCOFI_USE
	if (cs->hw.elsa.MFlag) {
		val = serial_inp(cs, UART_IIR);
		if (!(val & UART_IIR_NO_INT)) {
			debugl1(cs,"IIR %02x", val);
			rs_interrupt_elsa(intno, cs);
		}
	}
#endif
	ista = readreg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_ISTA);
Start_IPAC:
	if (cs->debug & L1_DEB_IPAC)
		debugl1(cs, "IPAC ISTA %02X", ista);
	if (ista & 0x0f) {
		val = readreg(cs->hw.elsa.ale, cs->hw.elsa.hscx, HSCX_ISTA + 0x40);
		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.elsa.ale, cs->hw.elsa.isac, ISAC_ISTA + 0x80);
		if (val) {
			isac_interrupt(cs, val);
		}
	}
	if (ista & 0x10) {
		val = 0x01;
		isac_interrupt(cs, val);
	}
	ista  = readreg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_ISTA);
	if ((ista & 0x3f) && icnt) {
		icnt--;
		goto Start_IPAC;
	}
	if (!icnt)
		printk(KERN_WARNING "ELSA IRQ LOOP\n");
	writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_MASK, 0xFF);
	writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_MASK, 0xC0);
}
Esempio n. 2
0
static irqreturn_t
elsa_interrupt_ipac(int intno, void *dev_id, struct pt_regs *regs)
{
	struct IsdnCardState *cs = dev_id;
	u8 val;

	if (!cs) {
		printk(KERN_WARNING "Elsa: Spurious interrupt!\n");
		return IRQ_NONE;
	}
	if (cs->subtyp == ELSA_QS1000PCI || cs->subtyp == ELSA_QS3000PCI) {
		val = bytein(cs->hw.elsa.cfg + 0x4c); /* PCI IRQ */
		if (!test_bit(FLG_BUGGY_PLX9050, &cs->HW_Flags) && 
		    !(val & ELSA_PCI_IRQ_MASK))
			return IRQ_NONE;
	}
#if ARCOFI_USE
	if (cs->hw.elsa.MFlag) {
		val = serial_inp(cs, UART_IIR);
		if (!(val & UART_IIR_NO_INT)) {
			debugl1(cs,"IIR %02x", val);
			spin_lock(&cs->lock);
			rs_interrupt_elsa(intno, cs);
			spin_unlock(&cs->lock);
		}
	}
#endif
	return ipac_irq(intno, dev_id, regs);
}
Esempio n. 3
0
static irqreturn_t
elsa_interrupt(int intno, void *dev_id, struct pt_regs *regs)
{
	struct IsdnCardState *cs = dev_id;
	u8 val;

	if ((cs->typ == ISDN_CTYPE_ELSA_PCMCIA) && (*cs->busy_flag == 1)) {
	/* The card tends to generate interrupts while being removed
	   causing us to just crash the kernel. bad. */
		printk(KERN_WARNING "Elsa: card not available!\n");
		return IRQ_NONE;
	}
#if ARCOFI_USE
	if (cs->hw.elsa.MFlag) {
		val = serial_inp(cs, UART_IIR);
		if (!(val & UART_IIR_NO_INT)) {
			debugl1(cs,"IIR %02x", val);
			spin_lock(&cs->lock);
			rs_interrupt_elsa(intno, cs);
			spin_unlock(&cs->lock);
		}
	}
#endif
	hscxisac_irq(intno, dev_id, regs);

	if (cs->hw.elsa.status & ELSA_TIMER_AKTIV) {
		if (!TimerRun(cs)) {
			/* Timer Restart */
			byteout(cs->hw.elsa.timer, 0);
			cs->hw.elsa.counter++;
		}
	}
#if ARCOFI_USE
	if (cs->hw.elsa.MFlag) {
		val = serial_inp(cs, UART_MCR);
		val ^= 0x8;
		serial_outp(cs, UART_MCR, val);
		val = serial_inp(cs, UART_MCR);
		val ^= 0x8;
		serial_outp(cs, UART_MCR, val);
	}
#endif
	if (cs->hw.elsa.trig)
		byteout(cs->hw.elsa.trig, 0x00);
	return IRQ_HANDLED;
}
Esempio n. 4
0
static irqreturn_t
elsa_interrupt(int intno, void *dev_id, struct pt_regs *regs)
{
	struct IsdnCardState *cs = dev_id;
	u_long flags;
	u_char val;
	int icnt=5;

	if ((cs->typ == ISDN_CTYPE_ELSA_PCMCIA) && (*cs->busy_flag == 1)) {
	/* The card tends to generate interrupts while being removed
	   causing us to just crash the kernel. bad. */
		printk(KERN_WARNING "Elsa: card not available!\n");
		return IRQ_NONE;
	}
	spin_lock_irqsave(&cs->lock, flags);
#if ARCOFI_USE
	if (cs->hw.elsa.MFlag) {
		val = serial_inp(cs, UART_IIR);
		if (!(val & UART_IIR_NO_INT)) {
			debugl1(cs,"IIR %02x", val);
			rs_interrupt_elsa(intno, cs);
		}
	}
#endif
	val = readreg(cs->hw.elsa.ale, cs->hw.elsa.hscx, HSCX_ISTA + 0x40);
      Start_HSCX:
	if (val) {
		hscx_int_main(cs, val);
	}
	val = readreg(cs->hw.elsa.ale, cs->hw.elsa.isac, ISAC_ISTA);
      Start_ISAC:
	if (val) {
		isac_interrupt(cs, val);
	}
	val = readreg(cs->hw.elsa.ale, cs->hw.elsa.hscx, HSCX_ISTA + 0x40);
	if (val && icnt) {
		if (cs->debug & L1_DEB_HSCX)
			debugl1(cs, "HSCX IntStat after IntRoutine");
		icnt--;
		goto Start_HSCX;
	}
	val = readreg(cs->hw.elsa.ale, cs->hw.elsa.isac, ISAC_ISTA);
	if (val && icnt) {
		if (cs->debug & L1_DEB_ISAC)
			debugl1(cs, "ISAC IntStat after IntRoutine");
		icnt--;
		goto Start_ISAC;
	}
	if (!icnt)
		printk(KERN_WARNING"ELSA IRQ LOOP\n");
	writereg(cs->hw.elsa.ale, cs->hw.elsa.hscx, HSCX_MASK, 0xFF);
	writereg(cs->hw.elsa.ale, cs->hw.elsa.hscx, HSCX_MASK + 0x40, 0xFF);
	writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, ISAC_MASK, 0xFF);
	if (cs->hw.elsa.status & ELSA_TIMER_AKTIV) {
		if (!TimerRun(cs)) {
			/* Timer Restart */
			byteout(cs->hw.elsa.timer, 0);
			cs->hw.elsa.counter++;
		}
	}
#if ARCOFI_USE
	if (cs->hw.elsa.MFlag) {
		val = serial_inp(cs, UART_MCR);
		val ^= 0x8;
		serial_outp(cs, UART_MCR, val);
		val = serial_inp(cs, UART_MCR);
		val ^= 0x8;
		serial_outp(cs, UART_MCR, val);
	}
#endif
	if (cs->hw.elsa.trig)
		byteout(cs->hw.elsa.trig, 0x00);
	writereg(cs->hw.elsa.ale, cs->hw.elsa.hscx, HSCX_MASK, 0x0);
	writereg(cs->hw.elsa.ale, cs->hw.elsa.hscx, HSCX_MASK + 0x40, 0x0);
	writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, ISAC_MASK, 0x0);
	spin_unlock_irqrestore(&cs->lock, flags);
	return IRQ_HANDLED;
}
Esempio n. 5
0
static irqreturn_t
elsa_interrupt_ipac(int intno, void *dev_id)
{
	struct IsdnCardState *cs = dev_id;
	u_long flags;
	u_char ista,val;
	int icnt=5;

	spin_lock_irqsave(&cs->lock, flags);
	if (cs->subtyp == ELSA_QS1000PCI || cs->subtyp == ELSA_QS3000PCI) {
		val = bytein(cs->hw.elsa.cfg + 0x4c); /* PCI IRQ */
		if (!(val & ELSA_PCI_IRQ_MASK)) {
			spin_unlock_irqrestore(&cs->lock, flags);
			return IRQ_NONE;
		}
	}
#if ARCOFI_USE
	if (cs->hw.elsa.MFlag) {
		val = serial_inp(cs, UART_IIR);
		if (!(val & UART_IIR_NO_INT)) {
			debugl1(cs,"IIR %02x", val);
			rs_interrupt_elsa(cs);
		}
	}
#endif
	ista = readreg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_ISTA);
Start_IPAC:
	if (cs->debug & L1_DEB_IPAC)
		debugl1(cs, "IPAC ISTA %02X", ista);
	if (ista & 0x0f) {
		val = readreg(cs->hw.elsa.ale, cs->hw.elsa.hscx, HSCX_ISTA + 0x40);
		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.elsa.ale, cs->hw.elsa.isac, ISAC_ISTA + 0x80);
		if (val) {
			isac_interrupt(cs, val);
		}
	}
	if (ista & 0x10) {
		val = 0x01;
		isac_interrupt(cs, val);
	}
	ista  = readreg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_ISTA);
	if ((ista & 0x3f) && icnt) {
		icnt--;
		goto Start_IPAC;
	}
	if (!icnt)
#ifdef CONFIG_DEBUG_PRINTK
		printk(KERN_WARNING "ELSA IRQ LOOP\n");
#else
		;
#endif
	writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_MASK, 0xFF);
	writereg(cs->hw.elsa.ale, cs->hw.elsa.isac, IPAC_MASK, 0xC0);
	spin_unlock_irqrestore(&cs->lock, flags);
	return IRQ_HANDLED;
}