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-rw-r--r--include/linux/serial.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/include/linux/serial.h b/include/linux/serial.h
new file mode 100644
index 000000000..3d6fe3ef9
--- /dev/null
+++ b/include/linux/serial.h
@@ -0,0 +1,38 @@
+/*
+ * include/linux/serial.h
+ *
+ * Copyright (C) 1992 by Theodore Ts'o.
+ *
+ * Redistribution of this file is permitted under the terms of the GNU
+ * Public License (GPL)
+ */
+#ifndef _LINUX_SERIAL_H
+#define _LINUX_SERIAL_H
+
+#include <uapi/linux/serial.h>
+#include <uapi/linux/serial_reg.h>
+
+/* Helper for dealing with UART_LCR_WLEN* defines */
+#define UART_LCR_WLEN(x) ((x) - 5)
+
+/* FIFO and shifting register empty */
+#define UART_LSR_BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
+
+static inline bool uart_lsr_tx_empty(u16 lsr)
+{
+ return (lsr & UART_LSR_BOTH_EMPTY) == UART_LSR_BOTH_EMPTY;
+}
+
+/*
+ * Counters of the input lines (CTS, DSR, RI, CD) interrupts
+ */
+
+struct async_icount {
+ __u32 cts, dsr, rng, dcd, tx, rx;
+ __u32 frame, parity, overrun, brk;
+ __u32 buf_overrun;
+};
+
+#include <linux/compiler.h>
+
+#endif /* _LINUX_SERIAL_H */