Async write requests for bigger transfer sizes

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>

1 files changed, 26 insertions, 0 deletions

diff --git a/src/download.c b/src/download.c
index b810a91..21df17d 100644
--- a/src/download.c
+++ b/src/download.c
@@ -195,6 +195,32 @@ int download_ready_read(struct context *context, off_t address, size_t length)
 	return 0;
 }
 
+int download_write_async(struct context *context, void *buffer, size_t length)
+{
+	struct download_write_async_request request;
+	struct download_response response;
+	int rc;
+
+	memset(&request, 0, sizeof(request));
+	request.command = DOWNLOAD_WRITE_ASYNC;
+	request.total_length = htole32(length);
+	request.length = htole32(length);
+
+	rc = hdlc_send(context, &request, sizeof(request));
+	if (rc < 0)
+		return -1;
+
+	rc = download_response(context);
+	if (rc < 0)
+		return -1;
+
+	rc = usb_send(context, buffer, length);
+	if (rc < 0)
+		return -1;
+
+	return 0;
+}
+
 int download_reset(struct context *context)
 {
 	int rc;