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Diffstat (limited to 'include/ns16550.h')
-rw-r--r--include/ns16550.h21
1 files changed, 12 insertions, 9 deletions
diff --git a/include/ns16550.h b/include/ns16550.h
index bef2961032..bef2071998 100644
--- a/include/ns16550.h
+++ b/include/ns16550.h
@@ -21,6 +21,9 @@
* will not allocate storage for arrays of size 0
*/
+#ifndef __ns16550_h
+#define __ns16550_h
+
#include <linux/types.h>
#ifdef CONFIG_DM_SERIAL
@@ -82,7 +85,7 @@ struct ns16550_plat {
struct udevice;
-struct NS16550 {
+struct ns16550 {
UART_REG(rbr); /* 0 */
UART_REG(ier); /* 1 */
UART_REG(fcr); /* 2 */
@@ -120,8 +123,6 @@ struct NS16550 {
#define dll rbr
#define dlm ier
-typedef struct NS16550 *NS16550_t;
-
/*
* These are the definitions for the FIFO Control Register
*/
@@ -221,11 +222,11 @@ typedef struct NS16550 *NS16550_t;
/* useful defaults for LCR */
#define UART_LCR_8N1 0x03
-void NS16550_init(NS16550_t com_port, int baud_divisor);
-void NS16550_putc(NS16550_t com_port, char c);
-char NS16550_getc(NS16550_t com_port);
-int NS16550_tstc(NS16550_t com_port);
-void NS16550_reinit(NS16550_t com_port, int baud_divisor);
+void ns16550_init(struct ns16550 *com_port, int baud_divisor);
+void ns16550_putc(struct ns16550 *com_port, char c);
+char ns16550_getc(struct ns16550 *com_port);
+int ns16550_tstc(struct ns16550 *com_port);
+void ns16550_reinit(struct ns16550 *com_port, int baud_divisor);
/**
* ns16550_calc_divisor() - calculate the divisor given clock and baud rate
@@ -238,7 +239,7 @@ void NS16550_reinit(NS16550_t com_port, int baud_divisor);
* @baudrate: Required baud rate
* @return baud rate divisor that should be used
*/
-int ns16550_calc_divisor(NS16550_t port, int clock, int baudrate);
+int ns16550_calc_divisor(struct ns16550 *port, int clock, int baudrate);
/**
* ns16550_serial_of_to_plat() - convert DT to platform data
@@ -266,3 +267,5 @@ int ns16550_serial_probe(struct udevice *dev);
* These should be used by the client driver for the driver's 'ops' member
*/
extern const struct dm_serial_ops ns16550_serial_ops;
+
+#endif /* __ns16550_h */