[U-Boot] [PATCH v1 1/2] usb: dfu: add config option to use in dfu mode fullspeed only

[Heiko Schocher]

add the new config option CONFIG_DFU_FULLSPEED. With this
option enabled, DFU uses fullspeed only.

Signed-off-by: Heiko Schocher <hs at denx.de>
Cc: Tom Rini <trini at ti.com>
Cc: Lukasz Majewski <l.majewski at samsung.com>
Cc: Marek Vasut <marex at denx.de>
Cc: Liu Bin <b-liu at ti.com>
Cc: Lukas Stockmann <lukas.stockmann at siemens.com>
---
 README                     | 3 +++
 drivers/usb/gadget/f_dfu.c | 3 +++
 drivers/usb/gadget/g_dnl.c | 3 +++
 3 files changed, 9 insertions(+)

diff --git a/README b/README
index 0a0f528..1413392 100644
--- a/README
+++ b/README
@@ -1607,6 +1607,9 @@ The following options need to be configured:
 		entering dfuMANIFEST state. Host waits this timeout, before
 		sending again an USB request to the device.
 
+		CONFIG_DFU_FULLSPEED
+		use for the dfu functionality fullspeed only.
+
 - USB Device Android Fastboot support:
 		CONFIG_CMD_FASTBOOT
 		This enables the command "fastboot" which enables the Android
diff --git a/drivers/usb/gadget/f_dfu.c b/drivers/usb/gadget/f_dfu.c
index 1145aab..dfa9f3b 100644
--- a/drivers/usb/gadget/f_dfu.c
+++ b/drivers/usb/gadget/f_dfu.c
@@ -238,6 +238,7 @@ static inline void to_dfu_mode(struct f_dfu *f_dfu)
 {
 	f_dfu->usb_function.strings = dfu_strings;
 	f_dfu->usb_function.hs_descriptors = f_dfu->function;
+	f_dfu->usb_function.descriptors = f_dfu->function;
 	f_dfu->dfu_state = DFU_STATE_dfuIDLE;
 }
 
@@ -245,6 +246,7 @@ static inline void to_runtime_mode(struct f_dfu *f_dfu)
 {
 	f_dfu->usb_function.strings = NULL;
 	f_dfu->usb_function.hs_descriptors = dfu_runtime_descs;
+	f_dfu->usb_function.descriptors = dfu_runtime_descs;
 }
 
 static int handle_upload(struct usb_request *req, u16 len)
@@ -809,6 +811,7 @@ static int dfu_bind_config(struct usb_configuration *c)
 		return -ENOMEM;
 	f_dfu->usb_function.name = "dfu";
 	f_dfu->usb_function.hs_descriptors = dfu_runtime_descs;
+	f_dfu->usb_function.descriptors = dfu_runtime_descs;
 	f_dfu->usb_function.bind = dfu_bind;
 	f_dfu->usb_function.unbind = dfu_unbind;
 	f_dfu->usb_function.set_alt = dfu_set_alt;
diff --git a/drivers/usb/gadget/g_dnl.c b/drivers/usb/gadget/g_dnl.c
index 58cad11..79e0c9c 100644
--- a/drivers/usb/gadget/g_dnl.c
+++ b/drivers/usb/gadget/g_dnl.c
@@ -143,6 +143,9 @@ static int g_dnl_config_register(struct usb_composite_dev *cdev)
 	config->bConfigurationValue = CONFIGURATION_NUMBER;
 	config->iConfiguration = STRING_USBDOWN;
 	config->bind = g_dnl_do_config;
+#if defined(CONFIG_DFU_FULLSPEED)
+	config->fullspeed = 1;
+#endif
 
 	return usb_add_config(cdev, config);
 }
-- 
1.8.3.1