C++ (Cpp) ReadByteAmd7930 Examples

Example #1

File: enternow_pci.c Project: appleorange1/asus-rt-n12-lx

static irqreturn_t
enpci_interrupt(int intno, void *dev_id)
{
	struct IsdnCardState *cs = dev_id;
	unsigned char s0val, s1val, ir;
	u_long flags;

	spin_lock_irqsave(&cs->lock, flags);
	s1val = inb(cs->hw.njet.base + NETJET_IRQSTAT1);

        /* AMD threw an interrupt */
	if (!(s1val & TJ_AMD_IRQ)) {
                /* read and clear interrupt-register */
		ir = ReadByteAmd7930(cs, 0x00);
		Amd7930_interrupt(cs, ir);
		s1val = 1;
	} else
		s1val = 0;
	s0val = inb(cs->hw.njet.base + NETJET_IRQSTAT0);
	if ((s0val | s1val)==0) { // shared IRQ
		spin_unlock_irqrestore(&cs->lock, flags);
		return IRQ_NONE;
	} 
	if (s0val)
		outb(s0val, cs->hw.njet.base + NETJET_IRQSTAT0);

	/* DMA-Interrupt: B-channel-stuff */
	/* set bits in sval to indicate which page is free */
	if (inl(cs->hw.njet.base + NETJET_DMA_WRITE_ADR) <
		inl(cs->hw.njet.base + NETJET_DMA_WRITE_IRQ))
		/* the 2nd write page is free */
		s0val = 0x08;
	else	/* the 1st write page is free */
		s0val = 0x04;
	if (inl(cs->hw.njet.base + NETJET_DMA_READ_ADR) <
		inl(cs->hw.njet.base + NETJET_DMA_READ_IRQ))
		/* the 2nd read page is free */
		s0val = s0val | 0x02;
	else	/* the 1st read page is free */
		s0val = s0val | 0x01;
	if (s0val != cs->hw.njet.last_is0) /* we have a DMA interrupt */
	{
		if (test_and_set_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags)) {
			spin_unlock_irqrestore(&cs->lock, flags);
			return IRQ_HANDLED;
		}
		cs->hw.njet.irqstat0 = s0val;
		if ((cs->hw.njet.irqstat0 & NETJET_IRQM0_READ) !=
			(cs->hw.njet.last_is0 & NETJET_IRQM0_READ))
			/* we have a read dma int */
			read_tiger(cs);
		if ((cs->hw.njet.irqstat0 & NETJET_IRQM0_WRITE) !=
			(cs->hw.njet.last_is0 & NETJET_IRQM0_WRITE))
			/* we have a write dma int */
			write_tiger(cs);
		test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags);
	}
	spin_unlock_irqrestore(&cs->lock, flags);
	return IRQ_HANDLED;
}

Example #2

File: enternow_pci.c Project: romanbb/android_kernel_lge_d851

static irqreturn_t
enpci_interrupt(int intno, void *dev_id)
{
	struct IsdnCardState *cs = dev_id;
	unsigned char s0val, s1val, ir;
	u_long flags;

	spin_lock_irqsave(&cs->lock, flags);
	s1val = inb(cs->hw.njet.base + NETJET_IRQSTAT1);

	/*                        */
	if (!(s1val & TJ_AMD_IRQ)) {
		/*                                   */
		ir = ReadByteAmd7930(cs, 0x00);
		Amd7930_interrupt(cs, ir);
		s1val = 1;
	} else
		s1val = 0;
	s0val = inb(cs->hw.njet.base + NETJET_IRQSTAT0);
	if ((s0val | s1val) == 0) { //           
		spin_unlock_irqrestore(&cs->lock, flags);
		return IRQ_NONE;
	}
	if (s0val)
		outb(s0val, cs->hw.njet.base + NETJET_IRQSTAT0);

	/*                                */
	/*                                                 */
	if (inl(cs->hw.njet.base + NETJET_DMA_WRITE_ADR) <
	    inl(cs->hw.njet.base + NETJET_DMA_WRITE_IRQ))
		/*                            */
		s0val = 0x08;
	else	/*                            */
		s0val = 0x04;
	if (inl(cs->hw.njet.base + NETJET_DMA_READ_ADR) <
	    inl(cs->hw.njet.base + NETJET_DMA_READ_IRQ))
		/*                           */
		s0val = s0val | 0x02;
	else	/*                           */
		s0val = s0val | 0x01;
	if (s0val != cs->hw.njet.last_is0) /*                         */
	{
		if (test_and_set_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags)) {
			spin_unlock_irqrestore(&cs->lock, flags);
			return IRQ_HANDLED;
		}
		cs->hw.njet.irqstat0 = s0val;
		if ((cs->hw.njet.irqstat0 & NETJET_IRQM0_READ) !=
		    (cs->hw.njet.last_is0 & NETJET_IRQM0_READ))
			/*                        */
			read_tiger(cs);
		if ((cs->hw.njet.irqstat0 & NETJET_IRQM0_WRITE) !=
		    (cs->hw.njet.last_is0 & NETJET_IRQM0_WRITE))
			/*                         */
			write_tiger(cs);
		test_and_clear_bit(FLG_LOCK_ATOMIC, &cs->HW_Flags);
	}
	spin_unlock_irqrestore(&cs->lock, flags);
	return IRQ_HANDLED;
}