These changes are the raw update to qemu-2.6.

[kvmfornfv.git] / qemu / roms / ipxe / src / arch / x86 / include / bits / uart.h

diff --git a/qemu/roms/ipxe/src/arch/x86/include/bits/uart.h b/qemu/roms/ipxe/src/arch/x86/include/bits/uart.h
new file mode 100644 (file)
index 0000000..e09cd3f
--- /dev/null
+++ b/qemu/roms/ipxe/src/arch/x86/include/bits/uart.h
@@ -0,0 +1,41 @@
+#ifndef _BITS_UART_H
+#define _BITS_UART_H
+
+/** @file
+ *
+ * 16550-compatible UART
+ *
+ */
+
+FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
+
+#include <stdint.h>
+#include <ipxe/io.h>
+
+/**
+ * Write to UART register
+ *
+ * @v uart             UART
+ * @v addr             Register address
+ * @v data             Data
+ */
+static inline __attribute__ (( always_inline )) void
+uart_write ( struct uart *uart, unsigned int addr, uint8_t data ) {
+       outb ( data, ( uart->base + addr ) );
+}
+
+/**
+ * Read from UART register
+ *
+ * @v uart             UART
+ * @v addr             Register address
+ * @ret data           Data
+ */
+static inline __attribute__ (( always_inline )) uint8_t
+uart_read ( struct uart *uart, unsigned int addr ) {
+       return inb ( uart->base + addr );
+}
+
+extern int uart_select ( struct uart *uart, unsigned int port );
+
+#endif /* _BITS_UART_H */