C++ (Cpp) mp_cfg_special_intr示例

示例#1

文件： mpbios.c 项目： toddfries/OpenBSD-sys-patches

void
mp_cfg_eisa_intr(const struct mpbios_int *entry, u_int32_t *redir)
{
	int mpspo = (entry->int_flags >> MPS_INTPO_SHIFT) & MPS_INTPO_MASK;
	int mpstrig = (entry->int_flags >> MPS_INTTR_SHIFT) & MPS_INTTR_MASK;

	*redir &= ~IOAPIC_REDLO_DEL_MASK;
	switch (mpspo) {
	case MPS_INTPO_DEF:
	case MPS_INTPO_ACTHI:
		*redir &= ~IOAPIC_REDLO_ACTLO;
		break;
	case MPS_INTPO_ACTLO:
		*redir |= IOAPIC_REDLO_ACTLO;
		break;
	default:
		panic("unknown MPS interrupt polarity %d", mpspo);
	}

	if (entry->int_type != MPS_INTTYPE_INT) {
		mp_cfg_special_intr(entry, redir);
		return;
	}
	*redir |= (IOAPIC_REDLO_DEL_LOPRI<<IOAPIC_REDLO_DEL_SHIFT);

	switch (mpstrig) {
	case MPS_INTTR_LEVEL:
		*redir |= IOAPIC_REDLO_LEVEL;
		break;
	case MPS_INTTR_EDGE:
		*redir &= ~IOAPIC_REDLO_LEVEL;
		break;
	case MPS_INTTR_DEF:
		/*
		 * Set "default" setting based on ELCR value snagged
		 * earlier.
		 */
		if (mp_busses[entry->src_bus_id].mb_data &
		    (1<<entry->src_bus_irq)) {
			*redir |= IOAPIC_REDLO_LEVEL;
		} else {
			*redir &= ~IOAPIC_REDLO_LEVEL;
		}
		break;
	default:
		panic("unknown MPS interrupt trigger %d", mpstrig);
	}
}

示例#2

文件： mpbios.c 项目： toddfries/OpenBSD-sys-patches

void
mp_cfg_isa_intr(const struct mpbios_int *entry, u_int32_t *redir)
{
	int mpspo = (entry->int_flags >> MPS_INTPO_SHIFT) & MPS_INTPO_MASK;
	int mpstrig = (entry->int_flags >> MPS_INTTR_SHIFT) & MPS_INTTR_MASK;

	*redir &= ~IOAPIC_REDLO_DEL_MASK;
	switch (mpspo) {
	case MPS_INTPO_DEF:
	case MPS_INTPO_ACTHI:
		*redir &= ~IOAPIC_REDLO_ACTLO;
		break;
	case MPS_INTPO_ACTLO:
		*redir |= IOAPIC_REDLO_ACTLO;
		break;
	default:
		panic("unknown MPS interrupt polarity %d", mpspo);
	}

	if (entry->int_type != MPS_INTTYPE_INT) {
		mp_cfg_special_intr(entry, redir);
		return;
	}
	*redir |= (IOAPIC_REDLO_DEL_LOPRI << IOAPIC_REDLO_DEL_SHIFT);

	switch (mpstrig) {
	case MPS_INTTR_LEVEL:
		*redir |= IOAPIC_REDLO_LEVEL;
		break;
	case MPS_INTTR_DEF:
	case MPS_INTTR_EDGE:
		*redir &= ~IOAPIC_REDLO_LEVEL;
		break;
	default:
		panic("unknown MPS interrupt trigger %d", mpstrig);
	}
}

示例#3

文件： mpbios.c 项目： RyanLucchese/rumpkernel-netbsd-src

static void
mp_cfg_pci_intr(const struct mpbios_int *entry, uint32_t *redir)
{
	int mpspo = entry->int_flags & 0x03; /* XXX magic */
	int mpstrig = (entry->int_flags >> 2) & 0x03; /* XXX magic */

	*redir &= ~IOAPIC_REDLO_DEL_MASK;
	switch (mpspo) {
	case MPS_INTPO_ACTHI:
		*redir &= ~IOAPIC_REDLO_ACTLO;
		break;
	case MPS_INTPO_DEF:
	case MPS_INTPO_ACTLO:
		*redir |= IOAPIC_REDLO_ACTLO;
		break;
	default:
		panic("unknown MPS interrupt polarity %d", mpspo);
	}

	if (entry->int_type != MPS_INTTYPE_INT) {
		mp_cfg_special_intr(entry, redir);
		return;
	}
	*redir |= (IOAPIC_REDLO_DEL_FIXED<<IOAPIC_REDLO_DEL_SHIFT);

	switch (mpstrig) {
	case MPS_INTTR_DEF:
	case MPS_INTTR_LEVEL:
		*redir |= IOAPIC_REDLO_LEVEL;
		break;
	case MPS_INTTR_EDGE:
		*redir &= ~IOAPIC_REDLO_LEVEL;
		break;
	default:
		panic("unknown MPS interrupt trigger %d", mpstrig);
	}
}