To fetch INTx irq line number.
Signed-off-by: Peter Xu <[email protected]>
---
lib/pci.c | 5 +++++
lib/pci.h | 1 +
2 files changed, 6 insertions(+)
diff --git a/lib/pci.c b/lib/pci.c
index 6416191..a7cfacb 100644
--- a/lib/pci.c
+++ b/lib/pci.c
@@ -327,6 +327,11 @@ void pci_scan_bars(struct pci_dev *dev)
}
}
+uint8_t pci_intx_line(struct pci_dev *dev)
+{
+ return pci_config_readb(dev->bdf, PCI_INTERRUPT_LINE);
+}
+
void pci_enable_defaults(struct pci_dev *dev)
{
pci_scan_bars(dev);
diff --git a/lib/pci.h b/lib/pci.h
index e71a05d..df86951 100644
--- a/lib/pci.h
+++ b/lib/pci.h
@@ -64,6 +64,7 @@ extern bool pci_bar_is_memory(struct pci_dev *dev, int
bar_num);
extern bool pci_bar_is_valid(struct pci_dev *dev, int bar_num);
extern void pci_bar_print(struct pci_dev *dev, int bar_num);
extern void pci_dev_print_id(pcidevaddr_t dev);
+extern uint8_t pci_intx_line(struct pci_dev *dev);
extern int pci_testdev(void);
--
2.7.4
