powerpc/hvsi: Move HVSI protocol definitions to a header file

This moves various HVSI protocol definitions from the hvsi.c
driver to a header file that can be used later on by a udbg
implementation

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

arch/powerpc/include/asm/hvsi.h

@@ -0,0 +1,68 @@
+#ifndef _HVSI_H
+#define _HVSI_H
+
+#define VS_DATA_PACKET_HEADER           0xff
+#define VS_CONTROL_PACKET_HEADER        0xfe
+#define VS_QUERY_PACKET_HEADER          0xfd
+#define VS_QUERY_RESPONSE_PACKET_HEADER 0xfc
+
+/* control verbs */
+#define VSV_SET_MODEM_CTL    1 /* to service processor only */
+#define VSV_MODEM_CTL_UPDATE 2 /* from service processor only */
+#define VSV_CLOSE_PROTOCOL   3
+
+/* query verbs */
+#define VSV_SEND_VERSION_NUMBER 1
+#define VSV_SEND_MODEM_CTL_STATUS 2
+
+/* yes, these masks are not consecutive. */
+#define HVSI_TSDTR 0x01
+#define HVSI_TSCD  0x20
+
+#define HVSI_MAX_OUTGOING_DATA 12
+#define HVSI_VERSION 1
+
+struct hvsi_header {
+	uint8_t  type;
+	uint8_t  len;
+	uint16_t seqno;
+} __attribute__((packed));
+
+struct hvsi_data {
+	uint8_t  type;
+	uint8_t  len;
+	uint16_t seqno;
+	uint8_t  data[HVSI_MAX_OUTGOING_DATA];
+} __attribute__((packed));
+
+struct hvsi_control {
+	uint8_t  type;
+	uint8_t  len;
+	uint16_t seqno;
+	uint16_t verb;
+	/* optional depending on verb: */
+	uint32_t word;
+	uint32_t mask;
+} __attribute__((packed));
+
+struct hvsi_query {
+	uint8_t  type;
+	uint8_t  len;
+	uint16_t seqno;
+	uint16_t verb;
+} __attribute__((packed));
+
+struct hvsi_query_response {
+	uint8_t  type;
+	uint8_t  len;
+	uint16_t seqno;
+	uint16_t verb;
+	uint16_t query_seqno;
+	union {
+		uint8_t  version;
+		uint32_t mctrl_word;
+	} u;
+} __attribute__((packed));
+
+
+#endif /* _HVSI_H */

drivers/tty/hvc/hvsi.c

@@ -49,6 +49,7 @@
 #include <asm/uaccess.h>
 #include <asm/vio.h>
 #include <asm/param.h>
+#include <asm/hvsi.h>
 
 #define HVSI_MAJOR	229
 #define HVSI_MINOR	128
@@ -109,68 +110,6 @@ enum HVSI_PROTOCOL_STATE {
 };
 #define HVSI_CONSOLE 0x1
 
-#define VS_DATA_PACKET_HEADER           0xff
-#define VS_CONTROL_PACKET_HEADER        0xfe
-#define VS_QUERY_PACKET_HEADER          0xfd
-#define VS_QUERY_RESPONSE_PACKET_HEADER 0xfc
-
-/* control verbs */
-#define VSV_SET_MODEM_CTL    1 /* to service processor only */
-#define VSV_MODEM_CTL_UPDATE 2 /* from service processor only */
-#define VSV_CLOSE_PROTOCOL   3
-
-/* query verbs */
-#define VSV_SEND_VERSION_NUMBER 1
-#define VSV_SEND_MODEM_CTL_STATUS 2
-
-/* yes, these masks are not consecutive. */
-#define HVSI_TSDTR 0x01
-#define HVSI_TSCD  0x20
-
-struct hvsi_header {
-	uint8_t  type;
-	uint8_t  len;
-	uint16_t seqno;
-} __attribute__((packed));
-
-struct hvsi_data {
-	uint8_t  type;
-	uint8_t  len;
-	uint16_t seqno;
-	uint8_t  data[HVSI_MAX_OUTGOING_DATA];
-} __attribute__((packed));
-
-struct hvsi_control {
-	uint8_t  type;
-	uint8_t  len;
-	uint16_t seqno;
-	uint16_t verb;
-	/* optional depending on verb: */
-	uint32_t word;
-	uint32_t mask;
-} __attribute__((packed));
-
-struct hvsi_query {
-	uint8_t  type;
-	uint8_t  len;
-	uint16_t seqno;
-	uint16_t verb;
-} __attribute__((packed));
-
-struct hvsi_query_response {
-	uint8_t  type;
-	uint8_t  len;
-	uint16_t seqno;
-	uint16_t verb;
-	uint16_t query_seqno;
-	union {
-		uint8_t  version;
-		uint32_t mctrl_word;
-	} u;
-} __attribute__((packed));
-
-
-
 static inline int is_console(struct hvsi_struct *hp)
 {
 	return hp->flags & HVSI_CONSOLE;