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Commit 9f6d3c4b authored by Stefan Richter's avatar Stefan Richter
Browse files

tools/firewire: add userspace front-end of nosy 

This adds nosy-dump, the userspace part of nosy, the IEEE 1394 traffic
sniffer for Texas Instruments PCILynx/ PCILynx2 based cards.  Author is
Kristian Høgsberg.

The files added here are taken from
git://anongit.freedesktop.org/~krh/nosy

 commit ee29be97 (2009-11-10)
with the following changes by Stefan Richter:
  - Parts pertaining to the kernel module removed from Makefile.
  - dist target removed from the Makefile.
  - Mentioned nosy-dump in the Kconfig help to nosy's kernel component.
  - Add copyright notice to nosy-dump.c.  This is a duplicate of the
    respective notice in the kernel component nosy.c except for a time
    span of 2002 - 2006, according to Kristian's git log.

"git shortlog decode-fcp.c list.h nosy-dump.[ch]" from nosy's git
repository:

Jonathan Woithe (1):
      Save logs on Ctrl-C

Kristian Høgsberg (11):
      Pull over nosy from mercurial repo.
      Remove some fields from default view, add logging feature.
      Use infinite time out for poll(), mark more detail fields.
      Fix byte ordering macro.
      Add decoding of iso data and lock packets.
      Add flag to indicate data length field.
      Add cycle start packet decoding, add --iso and --cycle-start flags.
      Distinguish between phy-packets and 0-length iso data.
      Fix transaction and stats view.
      Add simple AV/C decoder.
      Don't break down on big payloads.

Signed-off-by: default avatarStefan Richter <stefanr@s5r6.in-berlin.de>
Acked-by: default avatarKristian Høgsberg <krh@bitplanet.net>
parent aed69d2b

MAINTAINERS

+1 −0
Original line number Diff line number Diff line
@@ -2256,6 +2256,7 @@ T: git git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6.git 
S:	Maintained

F:	drivers/firewire/

F:	include/linux/firewire*.h

F:	tools/firewire/



FIRMWARE LOADER (request_firmware)

S:	Orphan

drivers/firewire/Kconfig

+2 −1
Original line number Diff line number Diff line
@@ -85,7 +85,8 @@ config FIREWIRE_NOSY 
	  Apple Power Mac G3 blue & white (onboard controller).



	  To compile this driver as a module, say M here:  The module will be

	  called nosy.

	  called nosy.  Source code of a userspace interface to nosy, called

	  nosy-dump, can be found in tools/firewire/ of the kernel sources.



	  If unsure, say N.

tools/firewire/Makefile

0 → 100644
+19 −0
Original line number Diff line number Diff line 
version = 0.3

prefix = /usr



CC = gcc



all : nosy-dump



nosy-dump : CFLAGS = -Wall -O2 -g

nosy-dump : CPPFLAGS = -DVERSION=\"$(version)\" -I../../drivers/firewire

nosy-dump : LDFLAGS = -g

nosy-dump : LDLIBS = -lpopt



nosy-dump : nosy-dump.o decode-fcp.o



clean :

	rm -rf *.o nosy-dump



install :

	install nosy-dump $(prefix)/bin/nosy-dump

tools/firewire/decode-fcp.c

0 → 100644
+239 −0
Original line number Diff line number Diff line 
#include <stdlib.h>

#include <stdio.h>

#include "list.h"

#include "nosy-dump.h"



#define CSR_FCP_COMMAND			0xfffff0000b00ull

#define CSR_FCP_RESPONSE		0xfffff0000d00ull



static const char * const ctype_names[16] = {

    "control",

    "status",

    "specific inquiry",

    "notify",

    "general inquiry",

    "(reserved 0x05)",

    "(reserved 0x06)",

    "(reserved 0x07)",

    "not implemented",

    "accepted",

    "rejected",

    "in transition",

    "stable",

    "changed",

    "(reserved 0x0e)",

    "interim"

};



static const char * const subunit_type_names[32] = {

    "monitor",

    "audio",

    "printer",

    "disc",

    "tape recorder/player",

    "tuner",

    "ca",

    "camera",

    "(reserved 0x08)",

    "panel",

    "bulletin board",

    "camera storage",

    "(reserved 0x0c)",

    "(reserved 0x0d)",

    "(reserved 0x0e)",

    "(reserved 0x0f)",

    "(reserved 0x10)",

    "(reserved 0x11)",

    "(reserved 0x12)",

    "(reserved 0x13)",

    "(reserved 0x14)",

    "(reserved 0x15)",

    "(reserved 0x16)",

    "(reserved 0x17)",

    "(reserved 0x18)",

    "(reserved 0x19)",

    "(reserved 0x1a)",

    "(reserved 0x1b)",

    "vendor unique",

    "all subunit types",

    "subunit_type extended to next byte",

    "unit"

};



struct avc_enum {

    int value;

    const char *name;

};



struct avc_field {

  const char *name;	/* Short name for field. */

  int offset;		/* Location of field, specified in bits.

			 * Negative means from end of packet */

  int width;		/* Width of field, 0 means use data_length. */

  struct avc_enum *names;

};



struct avc_opcode_info {

    const char *name;

    struct avc_field fields[8];

};



struct avc_enum power_field_names[] = {

    { 0x70, "on" },

    { 0x60, "off" },

    { }

};



static const struct avc_opcode_info opcode_info[256] = {



    /* TA Document 1999026

     * AV/C Digital Interface Command Set General Specification

     * Version 4.0 */

    [0xb2] =

    { "power", {

	    { "state", 0, 8, power_field_names }

	}

    },

    [0x30] =

    { "unit info", {

	    { "foo", 0, 8 },

	    { "unit_type", 8, 5 },

	    { "unit", 13, 3 },

	    { "company id", 16, 24 },

	}

    },

    [0x31] = { "subunit info" },

    [0x01] = { "reserve" },

    [0xb0] = { "version" },

    [0x00] = { "vendor dependent" },



    [0x02] = { "plug info" },

    [0x12] = { "channel usage" },

    [0x24] = { "connect" },

    [0x20] = { "connect av" },

    [0x22] = { "connections" },

    [0x11] = { "digital input" },

    [0x10] = { "digital output" },

    [0x25] = { "disconnect" },

    [0x21] = { "disconnect av" },

    [0x19] = { "input plug signal format" },

    [0x18] = { "output plug signal format" },

    [0x1f] = { "general bus setup" },



    /* TA Document 1999025

     * AV/C Descriptor Mechanism Specification Version 1.0 */

    [0x0c] = { "create descriptor" },

    [0x08] = { "open descriptor" },

    [0x09] = { "read descriptor" },

    [0x0a] = { "write descriptor" },

    [0x05] = { "open info block" },

    [0x06] = { "read info block" },

    [0x07] = { "write info block" },

    [0x0b] = { "search descriptor" },

    [0x0d] = { "object number select" },



    /* TA Document 1999015

     * AV/C Command Set for Rate Control of Isochronous Data Flow 1.0 */

    [0xb3] = { "rate", {

	    { "subfunction", 0, 8 },

	    { "result", 8, 8 },

	    { "plug_type", 16, 8 },

	    { "plug_id", 16, 8 },

	}

    },



    /* TA Document 1999008

     * AV/C Audio Subunit Specification 1.0 */

    [0xb8] = { "function block" },



    /* TA Document 2001001

     * AV/C Panel Subunit Specification 1.1 */

    [0x7d] = { "gui update" },

    [0x7e] = { "push gui data" },

    [0x7f] = { "user action" },

    [0x7c] = { "pass through" },



    /* */

    [0x26] = { "asynchronous connection" },

};



struct avc_frame {

    unsigned int operand0 : 8;

    unsigned int opcode : 8;

    unsigned int subunit_id : 3;

    unsigned int subunit_type : 5;

    unsigned int ctype : 4;

    unsigned int cts : 4;

};



static void

decode_avc(struct link_transaction *t)

{

    struct avc_frame *frame = (struct avc_frame *) t->request->packet.write_block.data;

    const struct avc_opcode_info *info;

    const char *name;

    char buffer[32];

    int i;



    info = &opcode_info[frame->opcode];

    if (info->name == NULL) {

	snprintf(buffer, sizeof buffer, "(unknown opcode 0x%02x)", frame->opcode);

	name = buffer;

    } else {

	name = info->name;

    }



    printf("av/c %s, subunit_type=%s, subunit_id=%d, opcode=%s",

	   ctype_names[frame->ctype], subunit_type_names[frame->subunit_type],

	   frame->subunit_id, name);



    for (i = 0; info->fields[i].name != NULL; i++) {

	printf(", %s", info->fields[i].name);

    }



    printf("\n");

}





int

decode_fcp(struct link_transaction *t)

{

    struct avc_frame *frame = (struct avc_frame *) t->request->packet.write_block.data;

    unsigned long long offset;



    offset = ((unsigned long long) t->request->packet.common.offset_high << 32) |

	t->request->packet.common.offset_low;



    if (t->request->packet.common.tcode != TCODE_WRITE_BLOCK)

	return 0;



    if (offset == CSR_FCP_COMMAND || offset == CSR_FCP_RESPONSE) {

	switch (frame->cts) {

	case 0x00:

	    decode_avc(t);

	    break;

	case 0x01:

	    printf("cal fcp frame (cts=0x01)\n");

	    break;

	case 0x02:

	    printf("ehs fcp frame (cts=0x02)\n");

	    break;

	case 0x03:

	    printf("havi fcp frame (cts=0x03)\n");

	    break;

	case 0x0e:

	    printf("vendor specific fcp frame (cts=0x0e)\n");

	    break;

	case 0x0f:

	    printf("extended cts\n");

	    break;

	default:

	    printf("reserved fcp frame (ctx=0x%02x)\n", frame->cts);

	    break;

	}

	return 1;

    }



    return 0;

}

tools/firewire/list.h

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+62 −0
Original line number Diff line number Diff line 
struct list {

  struct list *next, *prev;

};



static inline void

list_init(struct list *list)

{

  list->next = list;

  list->prev = list;

}



static inline int

list_empty(struct list *list)

{

  return list->next == list;

}



static inline void

list_insert(struct list *link, struct list *new_link)

{

  new_link->prev       = link->prev;

  new_link->next       = link;

  new_link->prev->next = new_link;

  new_link->next->prev = new_link;

}



static inline void

list_append(struct list *list, struct list *new_link)

{

  list_insert((struct list *)list, new_link);

}



static inline void

list_prepend(struct list *list, struct list *new_link)

{

  list_insert(list->next, new_link);

}



static inline void

list_remove(struct list *link)

{

  link->prev->next = link->next;

  link->next->prev = link->prev;

}



#define list_entry(link, type, member) \

	((type *)((char *)(link)-(unsigned long)(&((type *)0)->member)))



#define list_head(list, type, member)		\

	list_entry((list)->next, type, member)



#define list_tail(list, type, member)		\

	list_entry((list)->prev, type, member)



#define list_next(elm, member)					\

	list_entry((elm)->member.next, typeof(*elm), member)



#define list_for_each_entry(pos, list, member)			\

	for (pos = list_head(list, typeof(*pos), member);	\

	     &pos->member != (list);				\

	     pos = list_next(pos, member))