firehose: Add logs to indicate the progress of flashing

Add logs to show the partition label curently being flashed and
progress as a percentage of completion.

Signed-off-by: Viswanath Kraleti <[email protected]>

firehose.c

@@ -317,6 +317,7 @@ static int firehose_erase(struct qdl_device *qdl, struct program *program)
 	xml_setpropf(node, "num_partition_sectors", "%d", program->num_sectors);
 	xml_setpropf(node, "start_sector", "%s", program->start_sector);
 
+	fprintf(stderr, "[PROGRAM] Please wait, flashing \"%s\" now...\n", program->label);
 	ret = firehose_write(qdl, doc);
 	if (ret < 0) {
 		fprintf(stderr, "[PROGRAM] failed to write program command\n");
@@ -401,6 +402,9 @@ static int firehose_program(struct qdl_device *qdl, struct program *program, int
 	lseek(fd, (off_t) program->file_offset * program->sector_size, SEEK_SET);
 	left = num_sectors;
 	while (left > 0) {
+		fprintf(stderr, "[PROGRAM] %d sectors remaining out of %d (%.2f%%)\r",
+		        left, num_sectors,
+			(float) (num_sectors - left) / num_sectors * 100.0);
 		chunk_size = MIN(max_payload_size / program->sector_size, left);
 
 		n = read(fd, buf, chunk_size * program->sector_size);
@@ -420,6 +424,7 @@ static int firehose_program(struct qdl_device *qdl, struct program *program, int
 		left -= chunk_size;
 	}
 
+	fprintf(stderr, "\n");
 	t = time(NULL) - t0;
 
 	ret = firehose_read(qdl, 30000, firehose_generic_parser, NULL);