[PATCH i-g-t v1 5/7] tools/vbt_decode: parse & dump VS/PE-O tables for LT

["Michał Grzelak" <michal.grzelak@intel.com>]

Dump VBT #57 tables for LT. Add a table of strings to store each table
purpose. Show the affected modes on dumping.

Signed-off-by: Michał Grzelak <michal.grzelak@intel.com>
---
 tools/intel_vbt_decode.c | 44 ++++++++++++++++++++++++++++++++--------
 1 file changed, 36 insertions(+), 8 deletions(-)

diff --git a/tools/intel_vbt_decode.c b/tools/intel_vbt_decode.c
index f7ba4bc3d5..6e5fd73473 100644
--- a/tools/intel_vbt_decode.c
+++ b/tools/intel_vbt_decode.c
@@ -3469,27 +3469,55 @@ static const char * const vspeo_levels[16] = {
 	"N/A  ",
 };
 
-static void dump_vswing_preemphasis(struct context *context,
-				    const struct bdb_block *block)
+static const char * const vspeo_lt_tables[6] = {
+	"UNUSED",
+	"UNUSED",
+	"UNUSED",
+	"UNUSED",
+	"DP 1.4",
+	"DP 2.1",
+};
+
+static void dump_vspeo_lt(const struct bdb_vswing_preemph *vspeo)
 {
-	const struct bdb_vswing_preemph *vspeo = block_data(block);
+	const unsigned int *tables = vspeo->tables;
+	const unsigned int *vals;
+	int num_rows = 16;
+	size_t offset = 0;
 
 	printf("\tNumber of vswing tables: %d\n", vspeo->num_tables);
 	printf("\tNumber of columns: %d\n", vspeo->num_columns);
+	printf("\tNumber of rows: %d\n", num-rows);
+	printf("\tPhy type: LT\n");
 
 	for (int idx = 0; idx < vspeo->num_tables; idx++) {
-		printf("\tVswing Table #%d:\n", idx+1);
+		printf("\tVswing Table #%d (%s):\n", idx+1, vspeo_lt_tables[idx]);
+		for (int row = 0; row < num_rows; row++) {
+			vals = &tables[offset];
 
-		for (int row = 0; row < 10; row++) {
 			printf("\t\t%s: ", vspeo_levels[row]);
+			printf("main-cursor: 0x%08x, ", vals[0]);
+			printf("pre-cursor: 0x%08x, ", vals[1]);
+			printf("post-cursor: 0x%08x\n", vals[2]);
 
-			for (int col = 0; col < vspeo->num_columns; col++)
-				printf(" 0x%08x", vspeo->tables[idx * 10 * vspeo->num_columns + row * col]);
-			printf("\n");
+			offset += vspeo->num_columns;
 		}
 	}
 }
 
+static void dump_vswing_preemphasis(struct context *context,
+				    const struct bdb_block *block)
+{
+	const struct bdb_vswing_preemph *vspeo = block_data(block);
+	const char *sgt = (char *) context->vbt->signature;
+
+	if (strstr(sgt, "NOVALAKE")) {
+		dump_vspeo_lt(vspeo);
+	} else {
+		printf("platform not supported\n");
+	}
+}
+
 static void dump_generic_dtd_entry(const struct generic_dtd_entry *dtd,
 				   const char *prefix)
 {
-- 
2.45.2