Architectural Support: x86_64 (#37)

[lunaix-os.git] / lunaix-os / arch / x86 / includes / sys / pci_hba.h

diff --git a/lunaix-os/arch/x86/includes/sys/pci_hba.h b/lunaix-os/arch/x86/includes/sys/pci_hba.h
new file mode 100644 (file)
index 0000000..74d9c03
--- /dev/null
+++ b/lunaix-os/arch/x86/includes/sys/pci_hba.h
@@ -0,0 +1,37 @@
+#ifndef __LUNAIX_PCI_HBA_H
+#define __LUNAIX_PCI_HBA_H
+
+#include <hal/pci.h>
+#include <lunaix/types.h>
+
+#include "port_io.h"
+
+#define PCI_CONFIG_ADDR 0xcf8
+#define PCI_CONFIG_DATA 0xcfc
+
+static inline pci_reg_t
+pci_read_cspace(ptr_t base, int offset)
+{
+    port_wrdword(PCI_CONFIG_ADDR, base | (offset & ~0x3));
+    return port_rddword(PCI_CONFIG_DATA);
+}
+
+static inline void
+pci_write_cspace(ptr_t base, int offset, pci_reg_t data)
+{
+    port_wrdword(PCI_CONFIG_ADDR, base | (offset & ~0x3));
+    port_wrdword(PCI_CONFIG_DATA, data);
+}
+
+static inline u16_t 
+pci_config_msi_data(int vector) {
+    return vector;
+}
+
+static inline ptr_t 
+pci_get_msi_base() {
+    return 0xFEE00000;
+}
+
+
+#endif /* __LUNAIX_PCI_HBA_H */