[PATCH v4 34/46] usb/gadget: multi: convert to new interface of f_rndis

[Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx>]

Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
 drivers/usb/gadget/Kconfig |    1 +
 drivers/usb/gadget/multi.c |   40 ++++++++++++++++++++++++++++++++++------
 2 files changed, 35 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 46cef77..b9e615f 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -960,6 +960,7 @@ config USB_G_MULTI
 	select USB_F_ACM
 	select USB_F_MASS_STORAGE
 	select USB_F_ECM
+	select USB_F_RNDIS
 	help
 	  The Multifunction Composite Gadget provides Ethernet (RNDIS
 	  and/or CDC Ethernet), mass storage and ACM serial link
diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c
index 7404d53..77930b6 100644
--- a/drivers/usb/gadget/multi.c
+++ b/drivers/usb/gadget/multi.c
@@ -45,8 +45,7 @@ MODULE_LICENSE("GPL");
 
 #include "u_ecm.h"
 #ifdef USB_ETH_RNDIS
-#  define USB_FRNDIS_INCLUDED
-#  include "f_rndis.c"
+#  include "u_rndis.h"
 #  include "rndis.h"
 #endif
 #include "u_ether.h"
@@ -142,28 +141,43 @@ static struct usb_function_instance *fi_fsg;
 
 static struct usb_function_instance *fi_ecm;
 
+static struct usb_function_instance *fi_rndis;
+
 /********** RNDIS **********/
 
 #ifdef USB_ETH_RNDIS
 static struct usb_function *f_acm_rndis;
 static struct usb_function *f_fsg_rndis;
+static struct usb_function *f_rndis_rndis;
 
 static __init int rndis_do_config(struct usb_configuration *c)
 {
+	struct f_rndis_opts *rndis_opts;
 	int ret;
 
 	if (gadget_is_otg(c->cdev->gadget)) {
 		c->descriptors = otg_desc;
 		c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
 	}
+	rndis_opts = container_of(fi_rndis, struct f_rndis_opts, func_inst);
+	rndis_opts->ethaddr = hostaddr;
+	rndis_opts->vendor_id = 0;
+	rndis_opts->manufacturer = NULL;
+	rndis_opts->dev = the_dev;
+
+	f_rndis_rndis = usb_get_function(fi_rndis);
+	if (IS_ERR(f_rndis_rndis))
+		return PTR_ERR(f_rndis_rndis);
 
-	ret = rndis_bind_config(c, hostaddr, the_dev);
-	if (ret < 0)
-		return ret;
+	ret = usb_add_function(c, f_rndis_rndis);
+	if (ret)
+		goto err_func_rndis;
 
 	f_acm_rndis = usb_get_function(fi_acm);
-	if (IS_ERR(f_acm_rndis))
+	if (IS_ERR(f_acm_rndis)) {
+		ret = PTR_ERR(f_acm_rndis);
 		goto err_func_acm;
+	}
 
 	ret = usb_add_function(c, f_acm_rndis);
 	if (ret)
@@ -187,6 +201,9 @@ err_fsg:
 err_conf:
 	usb_put_function(f_acm_rndis);
 err_func_acm:
+	usb_remove_function(c, f_rndis_rndis);
+err_func_rndis:
+	usb_put_function(f_rndis_rndis);
 	return ret;
 }
 
@@ -324,6 +341,12 @@ static int __ref multi_bind(struct usb_composite_dev *cdev)
 		goto fail;
 	}
 
+	fi_rndis = usb_get_function_instance("rndis");
+	if (IS_ERR(fi_rndis)) {
+		status = PTR_ERR(fi_rndis);
+		goto fail_get_rndis;
+	}
+
 	/* set up serial link layer */
 	fi_acm = usb_get_function_instance("acm");
 	if (IS_ERR(fi_acm)) {
@@ -372,6 +395,7 @@ fail4:
 #ifdef USB_ETH_RNDIS
 	usb_put_function(f_acm_rndis);
 	usb_put_function(f_fsg_rndis);
+	usb_put_function(f_rndis_rndis);
 #endif
 fail3:
 	fsg_common_put(fsg_common);
@@ -380,6 +404,8 @@ fail2:
 fail1:
 	usb_put_function_instance(fi_acm);
 fail0:
+	usb_put_function_instance(fi_rndis);
+fail_get_rndis:
 	usb_put_function_instance(fi_ecm);
 fail:
 	gether_cleanup(the_dev);
@@ -396,7 +422,9 @@ static int __exit multi_unbind(struct usb_composite_dev *cdev)
 #ifdef USB_ETH_RNDIS
 	usb_put_function(f_acm_rndis);
 	usb_put_function(f_fsg_rndis);
+	usb_put_function(f_rndis_rndis);
 #endif
+	usb_put_function_instance(fi_rndis);
 	usb_put_function_instance(fi_acm);
 	usb_put_function_instance(fi_fsg);
 	usb_put_function_instance(fi_ecm);
-- 
1.7.0.4

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