File-copy from v4.4.100
This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Please refer to that tree for all history prior to this point.
Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/tools/firewire/decode-fcp.c b/tools/firewire/decode-fcp.c
new file mode 100644
index 0000000..e41223b
--- /dev/null
+++ b/tools/firewire/decode-fcp.c
@@ -0,0 +1,213 @@
+#include <linux/firewire-constants.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "list.h"
+#include "nosy-dump.h"
+
+#define CSR_FCP_COMMAND 0xfffff0000b00ull
+#define CSR_FCP_RESPONSE 0xfffff0000d00ull
+
+static const char * const ctype_names[] = {
+ [0x0] = "control", [0x8] = "not implemented",
+ [0x1] = "status", [0x9] = "accepted",
+ [0x2] = "specific inquiry", [0xa] = "rejected",
+ [0x3] = "notify", [0xb] = "in transition",
+ [0x4] = "general inquiry", [0xc] = "stable",
+ [0x5] = "(reserved 0x05)", [0xd] = "changed",
+ [0x6] = "(reserved 0x06)", [0xe] = "(reserved 0x0e)",
+ [0x7] = "(reserved 0x07)", [0xf] = "interim",
+};
+
+static const char * const subunit_type_names[] = {
+ [0x00] = "monitor", [0x10] = "(reserved 0x10)",
+ [0x01] = "audio", [0x11] = "(reserved 0x11)",
+ [0x02] = "printer", [0x12] = "(reserved 0x12)",
+ [0x03] = "disc", [0x13] = "(reserved 0x13)",
+ [0x04] = "tape recorder/player",[0x14] = "(reserved 0x14)",
+ [0x05] = "tuner", [0x15] = "(reserved 0x15)",
+ [0x06] = "ca", [0x16] = "(reserved 0x16)",
+ [0x07] = "camera", [0x17] = "(reserved 0x17)",
+ [0x08] = "(reserved 0x08)", [0x18] = "(reserved 0x18)",
+ [0x09] = "panel", [0x19] = "(reserved 0x19)",
+ [0x0a] = "bulletin board", [0x1a] = "(reserved 0x1a)",
+ [0x0b] = "camera storage", [0x1b] = "(reserved 0x1b)",
+ [0x0c] = "(reserved 0x0c)", [0x1c] = "vendor unique",
+ [0x0d] = "(reserved 0x0d)", [0x1d] = "all subunit types",
+ [0x0e] = "(reserved 0x0e)", [0x1e] = "subunit_type extended to next byte",
+ [0x0f] = "(reserved 0x0f)", [0x1f] = "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 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 {
+ uint32_t operand0:8;
+ uint32_t opcode:8;
+ uint32_t subunit_id:3;
+ uint32_t subunit_type:5;
+ uint32_t ctype:4;
+ uint32_t 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 =
+ ((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_REQUEST)
+ 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;
+}
+