1 files changed, 58 insertions, 0 deletions
diff --git a/src/include/device/pnp.h b/src/include/device/pnp.h
new file mode 100644
index 000000000000..0d39fc16630b
--- /dev/null
+++ b/src/include/device/pnp.h
@@ -0,0 +1,58 @@
+#ifndef DEVICE_PNP_H
+#define DEVICE_PNP_H
+
+static inline void pnp_write_config(unsigned char port, unsigned char value, unsigned char reg)
+{
+	outb(reg, port);
+	outb(value, port +1);
+}
+
+static inline unsigned char pnp_read_config(unsigned char port, unsigned char reg)
+{
+	outb(reg, port);
+	return inb(port +1);
+}
+
+static inline void pnp_set_logical_device(unsigned char port, int device)
+{
+	pnp_write_config(port, device, 0x07);
+}
+
+static inline void pnp_set_enable(unsigned char port, int enable)
+{
+	pnp_write_config(port, enable?0x1:0x0, 0x30);
+}
+
+static inline int pnp_read_enable(unsigned char port)
+{
+	return !!pnp_read_config(port, 0x30);
+}
+
+static inline void pnp_set_iobase0(unsigned char port, unsigned iobase)
+{
+	pnp_write_config(port, (iobase >> 8) & 0xff, 0x60);
+	pnp_write_config(port, iobase & 0xff, 0x61);
+}
+
+static inline void pnp_set_iobase1(unsigned char port, unsigned iobase)
+{
+	pnp_write_config(port, (iobase >> 8) & 0xff, 0x62);
+	pnp_write_config(port, iobase & 0xff, 0x63);
+}
+
+static inline void pnp_set_irq0(unsigned char port, unsigned irq)
+{
+	pnp_write_config(port, irq, 0x70);
+}
+
+static inline void pnp_set_irq1(unsigned char port, unsigned irq)
+{
+	pnp_write_config(port, irq, 0x72);
+}
+
+static inline void pnp_set_drq(unsigned char port, unsigned drq)
+{
+	pnp_write_config(port, drq & 0xff, 0x74);
+}
+
+#endif /* DEVICE_PNP_H */