From 05341a87646aceac90a63624fbd5fa620f8dc263 Mon Sep 17 00:00:00 2001
From: "B, Ravi" <ravibabu@ti.com>
Date: Thu, 28 Jul 2016 17:39:15 +0530
Subject: common: dfu: saperate the dfu common functionality

The cmd_dfu functionality is been used by both SPL and
u-boot, saperating the core dfu functionality moving
it to common/dfu.c.

Signed-off-by: Ravi Babu <ravibabu@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
---
 common/Makefile |  2 ++
 common/dfu.c    | 87 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 89 insertions(+)
 create mode 100644 common/dfu.c

(limited to 'common')

diff --git a/common/Makefile b/common/Makefile
index 6b4456e..ecc23e6 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -89,6 +89,7 @@ obj-$(CONFIG_USB_KEYBOARD) += usb_kbd.o
 endif # !CONFIG_SPL_BUILD
 
 ifdef CONFIG_SPL_BUILD
+obj-$(CONFIG_SPL_DFU_SUPPORT) += dfu.o
 obj-$(CONFIG_SPL_DFU_SUPPORT) += cli_hush.o
 obj-$(CONFIG_SPL_HASH_SUPPORT) += hash.o
 obj-$(CONFIG_ENV_IS_IN_FLASH) += env_flash.o
@@ -172,6 +173,7 @@ obj-$(CONFIG_CMDLINE) += cli_simple.o
 
 obj-y += cli.o
 obj-$(CONFIG_CMDLINE) += cli_readline.o
+obj-$(CONFIG_CMD_DFU) += dfu.o
 obj-y += command.o
 obj-y += s_record.o
 obj-y += xyzModem.o
diff --git a/common/dfu.c b/common/dfu.c
new file mode 100644
index 0000000..14b60f1
--- /dev/null
+++ b/common/dfu.c
@@ -0,0 +1,87 @@
+/*
+ * dfu.c -- dfu command
+ *
+ * Copyright (C) 2015
+ * Lukasz Majewski <l.majewski@majess.pl>
+ *
+ * Copyright (C) 2012 Samsung Electronics
+ * authors: Andrzej Pietrasiewicz <andrzej.p@samsung.com>
+ *	    Lukasz Majewski <l.majewski@samsung.com>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <watchdog.h>
+#include <dfu.h>
+#include <console.h>
+#include <g_dnl.h>
+#include <usb.h>
+#include <net.h>
+
+int run_usb_dnl_gadget(int usbctrl_index, char *usb_dnl_gadget)
+{
+	bool dfu_reset = false;
+	int ret, i = 0;
+
+	board_usb_init(usbctrl_index, USB_INIT_DEVICE);
+	g_dnl_clear_detach();
+	g_dnl_register(usb_dnl_gadget);
+	while (1) {
+		if (g_dnl_detach()) {
+			/*
+			 * Check if USB bus reset is performed after detach,
+			 * which indicates that -R switch has been passed to
+			 * dfu-util. In this case reboot the device
+			 */
+			if (dfu_usb_get_reset()) {
+				dfu_reset = true;
+				goto exit;
+			}
+
+			/*
+			 * This extra number of usb_gadget_handle_interrupts()
+			 * calls is necessary to assure correct transmission
+			 * completion with dfu-util
+			 */
+			if (++i == 10000)
+				goto exit;
+		}
+
+		if (ctrlc())
+			goto exit;
+
+		if (dfu_get_defer_flush()) {
+			/*
+			 * Call to usb_gadget_handle_interrupts() is necessary
+			 * to act on ZLP OUT transaction from HOST PC after
+			 * transmitting the whole file.
+			 *
+			 * If this ZLP OUT packet is NAK'ed, the HOST libusb
+			 * function fails after timeout (by default it is set to
+			 * 5 seconds). In such situation the dfu-util program
+			 * exits with error message.
+			 */
+			usb_gadget_handle_interrupts(usbctrl_index);
+			ret = dfu_flush(dfu_get_defer_flush(), NULL, 0, 0);
+			dfu_set_defer_flush(NULL);
+			if (ret) {
+				error("Deferred dfu_flush() failed!");
+				goto exit;
+			}
+		}
+
+		WATCHDOG_RESET();
+		usb_gadget_handle_interrupts(usbctrl_index);
+	}
+exit:
+	g_dnl_unregister();
+	board_usb_cleanup(usbctrl_index, USB_INIT_DEVICE);
+
+	if (dfu_reset)
+		run_command("reset", 0);
+
+	g_dnl_clear_detach();
+
+	return ret;
+}
-- 
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