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: Stefan Richter <stefanr@s5r6.in-berlin.de>
Acked-by: Kristian Høgsberg <krh@bitplanet.net>

1 files changed, 292 insertions, 0 deletions

diff --git a/tools/firewire/nosy-dump.h b/tools/firewire/nosy-dump.h
new file mode 100644
index 00000000000..d8bcb61ab95
--- /dev/null
+++ b/tools/firewire/nosy-dump.h
@@ -0,0 +1,292 @@
+#ifndef __nosy_dump_h__
+#define __nosy_dump_h__
+
+#define array_length(array) (sizeof(array) / sizeof(array[0]))
+
+#define TCODE_WRITE_QUADLET         0x0
+#define TCODE_WRITE_BLOCK           0x1
+#define TCODE_WRITE_RESPONSE        0x2
+#define TCODE_READ_QUADLET          0x4
+#define TCODE_READ_BLOCK            0x5
+#define TCODE_READ_QUADLET_RESPONSE 0x6
+#define TCODE_READ_BLOCK_RESPONSE   0x7
+#define TCODE_CYCLE_START           0x8
+#define TCODE_LOCK_REQUEST          0x9
+#define TCODE_ISO_DATA              0xa
+#define TCODE_LOCK_RESPONSE         0xb
+#define TCODE_PHY_PACKET            0x10
+
+#define ACK_NO_ACK               0x0
+#define ACK_COMPLETE             0x1
+#define ACK_PENDING              0x2
+#define ACK_BUSY_X               0x4
+#define ACK_BUSY_A               0x5
+#define ACK_BUSY_B               0x6
+#define ACK_DATA_ERROR           0xd
+#define ACK_TYPE_ERROR           0xe 
+
+#define ACK_DONE(a)  ((a >> 2) == 0)
+#define ACK_BUSY(a)  ((a >> 2) == 1)
+#define ACK_ERROR(a) ((a >> 2) == 3)
+
+#define SPEED_100                0x0
+#define SPEED_200                0x1
+#define SPEED_400                0x2
+
+struct phy_packet {
+  unsigned long timestamp;
+
+  union {
+    struct {
+      unsigned int zero : 24;
+      unsigned int phy_id : 6;
+      unsigned int identifier : 2;
+    } common, link_on;
+    struct {
+      unsigned int zero : 16;
+      unsigned int gap_count : 6;
+      unsigned int set_gap_count : 1;
+      unsigned int set_root : 1;
+      unsigned int root_id : 6;
+      unsigned int identifier : 2;
+    } phy_config;
+    struct {
+      unsigned int more_packets : 1;
+      unsigned int initiated_reset : 1;
+      unsigned int port2 : 2;
+      unsigned int port1 : 2;
+      unsigned int port0 : 2;
+      unsigned int power_class : 3;
+      unsigned int contender : 1;
+      unsigned int phy_delay : 2;
+      unsigned int phy_speed : 2;
+      unsigned int gap_count : 6;
+      unsigned int link_active : 1;
+      unsigned int extended : 1;
+      unsigned int phy_id : 6;
+      unsigned int identifier : 2;
+    } self_id;
+
+    struct {
+      unsigned int more_packets : 1;
+      unsigned int reserved1 : 1;
+      unsigned int porth : 2;
+      unsigned int portg : 2;
+      unsigned int portf : 2;
+      unsigned int porte : 2;
+      unsigned int portd : 2;
+      unsigned int portc : 2;
+      unsigned int portb : 2;
+      unsigned int porta : 2;
+      unsigned int reserved0 : 2;
+      unsigned int sequence : 3;
+      unsigned int extended : 1;
+      unsigned int phy_id : 6;
+      unsigned int identifier : 2;
+    } ext_self_id;
+  };
+
+  unsigned long inverted;
+  unsigned long ack;
+};
+
+#define PHY_PACKET_CONFIGURATION 0x00
+#define PHY_PACKET_LINK_ON 0x01
+#define PHY_PACKET_SELF_ID 0x02
+
+struct link_packet {
+  unsigned long timestamp;
+
+  union {
+    struct {
+      unsigned int priority : 4;
+      unsigned int tcode : 4;
+      unsigned int rt : 2;
+      unsigned int tlabel : 6;
+      unsigned int destination : 16;
+
+      unsigned int offset_high : 16;
+      unsigned int source : 16;
+
+      unsigned long offset_low;
+    } common;
+
+    struct {
+      unsigned int priority : 4;
+      unsigned int tcode : 4;
+      unsigned int rt : 2;
+      unsigned int tlabel : 6;
+      unsigned int destination : 16;
+
+      unsigned int offset_high : 16;
+      unsigned int source : 16;
+
+      unsigned long offset_low;
+
+      unsigned long crc;
+    } read_quadlet;
+
+    struct {
+      unsigned int priority : 4;
+      unsigned int tcode : 4;
+      unsigned int rt : 2;
+      unsigned int tlabel : 6;
+      unsigned int destination : 16;
+
+      unsigned int reserved0 : 12;
+      unsigned int rcode : 4;
+      unsigned int source : 16;
+
+      unsigned long reserved1;
+
+      unsigned long data;
+ 
+      unsigned long crc; 
+    } read_quadlet_response;
+
+    struct {
+      unsigned int priority : 4;
+      unsigned int tcode : 4;
+      unsigned int rt : 2;
+      unsigned int tlabel : 6;
+      unsigned int destination : 16;
+
+      unsigned int offset_high : 16;
+      unsigned int source : 16;
+
+      unsigned long offset_low;
+
+      unsigned int extended_tcode : 16;
+      unsigned int data_length : 16;
+
+      unsigned long crc;
+    } read_block;
+
+    struct {
+      unsigned int priority : 4;
+      unsigned int tcode : 4;
+      unsigned int rt : 2;
+      unsigned int tlabel : 6;
+      unsigned int destination : 16;
+
+      unsigned int reserved0 : 12;
+      unsigned int rcode : 4;
+      unsigned int source : 16;
+
+      unsigned long reserved1;
+
+      unsigned int extended_tcode : 16;
+      unsigned int data_length : 16;
+
+      unsigned long crc; 
+
+      unsigned long data[0];
+
+      /* crc and ack follows. */
+
+    } read_block_response;
+
+    struct {
+      unsigned int priority : 4;
+      unsigned int tcode : 4;
+      unsigned int rt : 2;
+      unsigned int tlabel : 6;
+      unsigned int destination : 16;
+
+      unsigned int offset_high : 16;
+      unsigned int source : 16;
+
+      unsigned long offset_low;
+
+      unsigned long data;
+ 
+      unsigned long crc; 
+
+    } write_quadlet;
+
+    struct {
+      unsigned int priority : 4;
+      unsigned int tcode : 4;
+      unsigned int rt : 2;
+      unsigned int tlabel : 6;
+      unsigned int destination : 16;
+
+      unsigned int offset_high : 16;
+      unsigned int source : 16;
+
+      unsigned int offset_low : 32;
+
+      unsigned int extended_tcode : 16;
+      unsigned int data_length : 16;
+ 
+      unsigned long crc; 
+      unsigned long data[0];
+
+      /* crc and ack follows. */
+
+    } write_block;
+
+    struct {
+      unsigned int priority : 4;
+      unsigned int tcode : 4;
+      unsigned int rt : 2;
+      unsigned int tlabel : 6;
+      unsigned int destination : 16;
+
+      unsigned int reserved0 : 12;
+      unsigned int rcode : 4;
+      unsigned int source : 16;
+
+      unsigned long reserved1;
+
+      unsigned long crc; 
+    } write_response;
+
+    struct {
+      unsigned int priority : 4;
+      unsigned int tcode : 4;
+      unsigned int rt : 2;
+      unsigned int tlabel : 6;
+      unsigned int destination : 16;
+
+      unsigned int offset_high : 16;
+      unsigned int source : 16;
+
+      unsigned long offset_low;
+
+      unsigned long data;
+
+      unsigned long crc; 
+    } cycle_start;
+
+    struct {
+      unsigned int sy : 4;
+      unsigned int tcode : 4;
+      unsigned int channel : 6;
+      unsigned int tag : 2;
+      unsigned int data_length : 16;
+
+      unsigned long crc;
+    } iso_data;
+
+  };
+
+};
+
+struct subaction {
+  unsigned long ack;
+  size_t length;
+  struct list link;
+  struct link_packet packet;
+};
+
+struct link_transaction {
+  int request_node, response_node, tlabel;
+  struct subaction *request, *response;
+  struct list request_list, response_list;
+  struct list link;
+};
+
+int decode_fcp(struct link_transaction *t);
+
+#endif /* __nosy_dump_h__ */