fel: Factor out a new FEL library

The FEL utility had accumulated enough (mostly USB-related)
"low-level" code to justify moving that to a separate code unit.
This will allow us to keep better focus on the higher level
functionality in fel.c.

Signed-off-by: Bernhard Nortmann <bernhard.nortmann@web.de>

1 files changed, 54 insertions, 0 deletions

diff --git a/fel_lib.h b/fel_lib.h
new file mode 100644
index 0000000..7f0524e
--- /dev/null
+++ b/fel_lib.h
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2016 Bernhard Nortmann <bernhard.nortmann@web.de>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef _SUNXI_TOOLS_FEL_LIB_H
+#define _SUNXI_TOOLS_FEL_LIB_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "progress.h"
+#include "soc_info.h"
+
+/* USB identifiers for Allwinner device in FEL mode */
+#define AW_USB_VENDOR_ID	0x1F3A
+#define AW_USB_PRODUCT_ID	0xEFE8
+
+typedef struct _felusb_handle felusb_handle; /* opaque data type */
+
+/* More general FEL "device" handle, to be extended later */
+typedef struct {
+	felusb_handle *usb;
+} feldev_handle;
+
+/* FEL device management */
+
+void feldev_init(void);
+void feldev_done(feldev_handle *dev);
+
+feldev_handle *feldev_open(int busnum, int devnum,
+			   uint16_t vendor_id, uint16_t product_id);
+void feldev_close(feldev_handle *dev);
+
+/* FEL functions */
+
+void aw_fel_get_version(feldev_handle *dev, struct aw_fel_version *buf);
+void aw_fel_read(feldev_handle *dev, uint32_t offset, void *buf, size_t len);
+void aw_fel_write(feldev_handle *dev, void *buf, uint32_t offset, size_t len);
+void aw_fel_write_buffer(feldev_handle *dev, void *buf, uint32_t offset,
+			 size_t len, bool progress);
+void aw_fel_execute(feldev_handle *dev, uint32_t offset);
+
+#endif /* _SUNXI_TOOLS_FEL_LIB_H */