amd64: rtl8139 driver with basic rx support

1 files changed, 15 insertions, 0 deletions

diff --git a/src/kernel/arch/amd64/pci.h b/src/kernel/arch/amd64/pci.h
new file mode 100644
index 0000000..0efe24e
--- /dev/null
+++ b/src/kernel/arch/amd64/pci.h
@@ -0,0 +1,15 @@
+#pragma once
+#include <stdint.h>
+
+#define PCICFG_CMD 0x4
+
+uint8_t pcicfg_r8(uint32_t bdf, uint32_t offset);
+uint16_t pcicfg_r16(uint32_t bdf, uint32_t offset);
+uint32_t pcicfg_r32(uint32_t bdf, uint32_t offset);
+
+void pcicfg_w16(uint32_t bdf, uint32_t offset, uint32_t value);
+void pcicfg_w32(uint32_t bdf, uint32_t offset, uint32_t value);
+
+uint16_t pcicfg_iobase(uint32_t bdf);
+
+void pci_init(void);