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Commit 94b5573e authored by Andrzej Pietrasiewicz's avatar Andrzej Pietrasiewicz Committed by Felipe Balbi
Browse files

usb: gadget: ether: convert to new interface of f_eem 



use new interface so old one can be removed.

Signed-off-by: default avatarAndrzej Pietrasiewicz <andrzej.p@samsung.com>
Signed-off-by: default avatarKyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: default avatarFelipe Balbi <balbi@ti.com>
parent b29002a1

drivers/usb/gadget/Kconfig

+1 −0
Original line number Diff line number Diff line
@@ -681,6 +681,7 @@ config USB_ETH_EEM 
       bool "Ethernet Emulation Model (EEM) support"

       depends on USB_ETH

	select USB_LIBCOMPOSITE

	select USB_F_EEM

       default n

       help

         CDC EEM is a newer USB standard that is somewhat simpler than CDC ECM

drivers/usb/gadget/ether.c

+45 −9
Original line number Diff line number Diff line
@@ -109,8 +109,7 @@ static inline bool has_rndis(void) 
#include "rndis.h"

#endif



#define USB_FEEM_INCLUDED

#include "f_eem.c"

#include "u_eem.h"



/*-------------------------------------------------------------------------*/

USB_GADGET_COMPOSITE_OPTIONS();
@@ -217,6 +216,9 @@ static struct eth_dev *the_dev; 
static struct usb_function_instance *fi_ecm;

static struct usb_function *f_ecm;



static struct usb_function_instance *fi_eem;

static struct usb_function *f_eem;



/*-------------------------------------------------------------------------*/



/*
@@ -267,9 +269,17 @@ static int __init eth_do_config(struct usb_configuration *c) 
		c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;

	}



	if (use_eem)

		return eem_bind_config(c, the_dev);

	else if (can_support_ecm(c->cdev->gadget)) {

	if (use_eem) {

		f_eem = usb_get_function(fi_eem);

		if (IS_ERR(f_eem))

			return PTR_ERR(f_eem);



		status = usb_add_function(c, f_eem);

		if (status < 0)

			usb_put_function(f_eem);



		return status;

	} else if (can_support_ecm(c->cdev->gadget)) {

		f_ecm = usb_get_function(fi_ecm);

		if (IS_ERR(f_ecm))

			return PTR_ERR(f_ecm);
@@ -296,10 +306,11 @@ static struct usb_configuration eth_config_driver = { 
static int __init eth_bind(struct usb_composite_dev *cdev)

{

	struct usb_gadget	*gadget = cdev->gadget;

	struct f_eem_opts	*eem_opts = NULL;

	struct f_ecm_opts	*ecm_opts = NULL;

	int			status;



	if (use_eem || !can_support_ecm(gadget)) {

	if (!use_eem && !can_support_ecm(gadget)) {

		/* set up network link layer */

		the_dev = gether_setup(cdev->gadget, dev_addr, host_addr,

				host_mac, qmult);
@@ -310,6 +321,20 @@ static int __init eth_bind(struct usb_composite_dev *cdev) 
	/* set up main config label and device descriptor */

	if (use_eem) {

		/* EEM */

		fi_eem = usb_get_function_instance("eem");

		if (IS_ERR(fi_eem))

			return PTR_ERR(fi_eem);



		eem_opts = container_of(fi_eem, struct f_eem_opts, func_inst);



		gether_set_qmult(eem_opts->net, qmult);

		if (!gether_set_host_addr(eem_opts->net, host_addr))

			pr_info("using host ethernet address: %s", host_addr);

		if (!gether_set_dev_addr(eem_opts->net, dev_addr))

			pr_info("using self ethernet address: %s", dev_addr);



		the_dev = netdev_priv(eem_opts->net);



		eth_config_driver.label = "CDC Ethernet (EEM)";

		device_desc.idVendor = cpu_to_le16(EEM_VENDOR_NUM);

		device_desc.idProduct = cpu_to_le16(EEM_PRODUCT_NUM);
@@ -343,7 +368,14 @@ static int __init eth_bind(struct usb_composite_dev *cdev) 


	if (has_rndis()) {

		/* RNDIS plus ECM-or-Subset */

		if (!use_eem && can_support_ecm(gadget)) {

		if (use_eem) {

			gether_set_gadget(eem_opts->net, cdev->gadget);

			status = gether_register_netdev(eem_opts->net);

			if (status)

				goto fail;

			eem_opts->bound = true;

			gether_get_host_addr_u8(eem_opts->net, host_mac);

		} else if (can_support_ecm(gadget)) {

			gether_set_gadget(ecm_opts->net, cdev->gadget);

			status = gether_register_netdev(ecm_opts->net);

			if (status)
@@ -386,8 +418,10 @@ static int __init eth_bind(struct usb_composite_dev *cdev) 
	return 0;



fail:

	if (use_eem || !can_support_ecm(gadget))

	if (!use_eem && !can_support_ecm(gadget))

		gether_cleanup(the_dev);

	else if (use_eem)

		usb_put_function_instance(fi_eem);

	else

		usb_put_function_instance(fi_ecm);

	return status;
@@ -395,8 +429,10 @@ fail: 


static int __exit eth_unbind(struct usb_composite_dev *cdev)

{

	if (use_eem || !can_support_ecm(cdev->gadget))

	if (!use_eem && !can_support_ecm(cdev->gadget))

		gether_cleanup(the_dev);

	else if (use_eem)

		usb_put_function_instance(fi_eem);

	else

		usb_put_function_instance(fi_ecm);

	return 0;