[PATCH v4 24/46] usb/gadget: nokia: convert to new interface of f_ecm

[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/nokia.c |   52 ++++++++++++++++++++++++++++++++++++-------
 2 files changed, 44 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index aebdc14..039de79 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -917,6 +917,7 @@ config USB_G_NOKIA
 	select USB_U_SERIAL
 	select USB_U_ETHER
 	select USB_F_ACM
+	select USB_F_ECM
 	help
 	  The Nokia composite gadget provides support for acm, obex
 	  and phonet in only one composite gadget driver.
diff --git a/drivers/usb/gadget/nokia.c b/drivers/usb/gadget/nokia.c
index b27f3a3..5b98239 100644
--- a/drivers/usb/gadget/nokia.c
+++ b/drivers/usb/gadget/nokia.c
@@ -21,6 +21,7 @@
 #include "u_serial.h"
 #include "u_ether.h"
 #include "u_phonet.h"
+#include "u_ecm.h"
 #include "gadget_chips.h"
 
 /* Defines */
@@ -37,12 +38,9 @@
  * the runtime footprint, and giving us at least some parts of what
  * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
  */
-#define USB_FECM_INCLUDED
-#include "f_ecm.c"
 #include "f_obex.c"
 #include "f_serial.c"
 #include "f_phonet.c"
-#include "u_ether.h"
 
 /*-------------------------------------------------------------------------*/
 USB_GADGET_COMPOSITE_OPTIONS();
@@ -99,6 +97,8 @@ MODULE_LICENSE("GPL");
 /*-------------------------------------------------------------------------*/
 static struct usb_function *f_acm_cfg1;
 static struct usb_function *f_acm_cfg2;
+static struct usb_function *f_ecm_cfg1;
+static struct usb_function *f_ecm_cfg2;
 static u8 hostaddr[ETH_ALEN];
 static struct eth_dev *the_dev;
 
@@ -127,10 +127,13 @@ static struct usb_configuration nokia_config_100ma_driver = {
 };
 
 static struct usb_function_instance *fi_acm;
+static struct usb_function_instance *fi_ecm;
 
 static int __init nokia_bind_config(struct usb_configuration *c)
 {
 	struct usb_function *f_acm;
+	struct usb_function *f_ecm;
+	struct f_ecm_opts *ecm_opts;
 	int status = 0;
 
 	status = phonet_bind_config(c);
@@ -149,24 +152,39 @@ static int __init nokia_bind_config(struct usb_configuration *c)
 	if (IS_ERR(f_acm))
 		return PTR_ERR(f_acm);
 
+	ecm_opts = container_of(fi_ecm, struct f_ecm_opts, func_inst);
+	ecm_opts->ethaddr = hostaddr;
+	ecm_opts->dev = the_dev;
+
+	f_ecm = usb_get_function(fi_ecm);
+	if (IS_ERR(f_ecm)) {
+		status = PTR_ERR(f_ecm);
+		goto err_get_ecm;
+	}
+
 	status = usb_add_function(c, f_acm);
 	if (status)
 		goto err_conf;
 
-	status = ecm_bind_config(c, hostaddr, the_dev);
+	status = usb_add_function(c, f_ecm);
 	if (status) {
 		pr_debug("could not bind ecm config %d\n", status);
 		goto err_ecm;
 	}
-	if (c == &nokia_config_500ma_driver)
+	if (c == &nokia_config_500ma_driver) {
 		f_acm_cfg1 = f_acm;
-	else
+		f_ecm_cfg1 = f_ecm;
+	} else {
 		f_acm_cfg2 = f_acm;
+		f_ecm_cfg2 = f_ecm;
+	}
 
 	return status;
 err_ecm:
 	usb_remove_function(c, f_acm);
 err_conf:
+	usb_put_function(f_ecm);
+err_get_ecm:
 	usb_put_function(f_acm);
 	return status;
 }
@@ -202,18 +220,28 @@ static int __init nokia_bind(struct usb_composite_dev *cdev)
 	nokia_config_500ma_driver.iConfiguration = status;
 	nokia_config_100ma_driver.iConfiguration = status;
 
-	if (!gadget_supports_altsettings(gadget))
+	if (!gadget_supports_altsettings(gadget)) {
+		status = -ENODEV;
 		goto err_usb;
+	}
 
 	fi_acm = usb_get_function_instance("acm");
-	if (IS_ERR(fi_acm))
+	if (IS_ERR(fi_acm)) {
+		status = PTR_ERR(fi_acm);
 		goto err_usb;
+	}
+
+	fi_ecm = usb_get_function_instance("ecm");
+	if (IS_ERR(fi_ecm)) {
+		status = PTR_ERR(fi_ecm);
+		goto err_acm_inst;
+	}
 
 	/* finally register the configuration */
 	status = usb_add_config(cdev, &nokia_config_500ma_driver,
 			nokia_bind_config);
 	if (status < 0)
-		goto err_acm_inst;
+		goto err_ecm_inst;
 
 	status = usb_add_config(cdev, &nokia_config_100ma_driver,
 			nokia_bind_config);
@@ -227,6 +255,9 @@ static int __init nokia_bind(struct usb_composite_dev *cdev)
 
 err_put_cfg1:
 	usb_put_function(f_acm_cfg1);
+	usb_put_function(f_ecm_cfg1);
+err_ecm_inst:
+	usb_put_function_instance(fi_ecm);
 err_acm_inst:
 	usb_put_function_instance(fi_acm);
 err_usb:
@@ -247,7 +278,10 @@ static int __exit nokia_unbind(struct usb_composite_dev *cdev)
 
 	usb_put_function(f_acm_cfg1);
 	usb_put_function(f_acm_cfg2);
+	usb_put_function(f_ecm_cfg1);
+	usb_put_function(f_ecm_cfg2);
 	usb_put_function_instance(fi_acm);
+	usb_put_function_instance(fi_ecm);
 	gphonet_cleanup();
 
 	for (i = 0; i < TTY_PORTS_MAX; i++)
-- 
1.7.0.4

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