diff options
author | Marcel Apfelbaum <marcel.a@redhat.com> | 2013-10-07 10:36:35 +0300 |
---|---|---|
committer | Michael S. Tsirkin <mst@redhat.com> | 2013-10-14 17:11:44 +0300 |
commit | d98f08f54e0882b4da1177345161afabb8d47d94 (patch) | |
tree | 6eb01653c0c0430899c085cc5bb15ab0eae353b1 /include/hw | |
parent | a8a9d30bab2fae2e0ab3436fa0a40d89fbb0cf4e (diff) | |
download | hqemu-d98f08f54e0882b4da1177345161afabb8d47d94.zip hqemu-d98f08f54e0882b4da1177345161afabb8d47d94.tar.gz |
hw/pci: add pci wrappers for allocating and asserting irqs
Interrupt pin is selected and saved into PCI_INTERRUPT_PIN
register during device initialization. Devices should not call
directly qemu_set_irq and specify the INTx pin on each call.
Added pci_* wrappers to replace qemu_set_irq, qemu_irq_raise,
qemu_irq_lower and qemu_irq_pulse, setting the irq
based on PCI_INTERRUPT_PIN.
Added pci_allocate_irq wrapper to be used by devices that
still need PCIDevice infrastructure to assert irqs.
Renamed a static method which was named already pci_set_irq.
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'include/hw')
-rw-r--r-- | include/hw/pci/pci.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index 4b90e5d..990342c 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -632,6 +632,29 @@ PCIDevice *pci_create_simple_multifunction(PCIBus *bus, int devfn, PCIDevice *pci_create(PCIBus *bus, int devfn, const char *name); PCIDevice *pci_create_simple(PCIBus *bus, int devfn, const char *name); +qemu_irq pci_allocate_irq(PCIDevice *pci_dev); +void pci_set_irq(PCIDevice *pci_dev, int level); + +static inline void pci_irq_assert(PCIDevice *pci_dev) +{ + pci_set_irq(pci_dev, 1); +} + +static inline void pci_irq_deassert(PCIDevice *pci_dev) +{ + pci_set_irq(pci_dev, 0); +} + +/* + * FIXME: PCI does not work this way. + * All the callers to this method should be fixed. + */ +static inline void pci_irq_pulse(PCIDevice *pci_dev) +{ + pci_irq_assert(pci_dev); + pci_irq_deassert(pci_dev); +} + static inline int pci_is_express(const PCIDevice *d) { return d->cap_present & QEMU_PCI_CAP_EXPRESS; |