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Commit 725e789f authored by Benjamin Herrenschmidt's avatar Benjamin Herrenschmidt
Browse files

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: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 8a0360a5

arch/powerpc/include/asm/hvsi.h

0 → 100644
+68 −0
Original line number Diff line number Diff line 
#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

+1 −62
Original line number Diff line number Diff line
@@ -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;