Kernel: Add basic support for PCI and rtl8139

This implementation is very messy and is currently not used.

1 files changed, 11 insertions, 1 deletions

diff --git a/drivers/pci.h b/drivers/pci.h
index 855a7de..7511cee 100644
--- a/drivers/pci.h
+++ b/drivers/pci.h
@@ -1,16 +1,26 @@
 #include <stdint.h>
 
+struct GENERAL_DEVICE {
+  uint32_t base_mem_io;
+  uint8_t interrupt_line;
+};
+
 struct PCI_DEVICE {
   uint16_t vendor;
   uint16_t device;
   uint8_t bus;
   uint8_t slot;
+  union {
+    struct GENERAL_DEVICE gen;
+  };
 };
 
 uint32_t pci_config_read32(const struct PCI_DEVICE *device, uint8_t func,
                            uint8_t offset);
 void pci_config_write32(const struct PCI_DEVICE *device, uint8_t func,
-                            uint8_t offset, uint32_t data);
+                        uint8_t offset, uint32_t data);
 
 int pci_populate_device_struct(uint16_t vendor, uint16_t device,
                                struct PCI_DEVICE *pci_device);
+
+uint8_t pci_get_interrupt_line(const struct PCI_DEVICE *device);