Convert the legacy multi gadget to the new interface of f_ecm,
so that later the compatibility layer in f_ecm can be removed.
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 | 68 ++++++++++++++++++++++++++++++++++++++-----
2 files changed, 61 insertions(+), 8 deletions(-)
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 1897b96..07e271c 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -1070,6 +1070,7 @@ config USB_G_MULTI_CDC
bool "CDC Ethernet + CDC Serial + Storage configuration"
depends on USB_G_MULTI
default n
+ select USB_F_ECM
help
This option enables a configuration with CDC Ethernet (ECM), CDC
Serial and Mass Storage functions available in the Multifunction
diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c
index 42a5bed..7dd5544 100644
--- a/drivers/usb/gadget/multi.c
+++ b/drivers/usb/gadget/multi.c
@@ -15,6 +15,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
+#include <linux/netdevice.h>
#include "u_serial.h"
#if defined USB_ETH_RNDIS
@@ -44,8 +45,7 @@ MODULE_LICENSE("GPL");
#define USB_FMS_INCLUDED
#include "f_mass_storage.c"
-#define USBF_ECM_INCLUDED
-#include "f_ecm.c"
+#include "u_ecm.h"
#ifdef USB_ETH_RNDIS
# define USB_FRNDIS_INCLUDED
# include "f_rndis.c"
@@ -151,14 +151,14 @@ FSG_MODULE_PARAMETERS(/* no prefix */, fsg_mod_data);
static struct fsg_common fsg_common;
-static u8 host_mac[ETH_ALEN];
-
static struct usb_function_instance *fi_acm;
static struct eth_dev *the_dev;
/********** RNDIS **********/
#ifdef USB_ETH_RNDIS
+static u8 host_mac[ETH_ALEN];
+
static struct usb_function *f_acm_rndis;
static __init int rndis_do_config(struct usb_configuration *c)
@@ -220,7 +220,9 @@ static __ref int rndis_config_register(struct usb_composite_dev *cdev)
/********** CDC ECM **********/
#ifdef CONFIG_USB_G_MULTI_CDC
+static struct usb_function_instance *fi_ecm;
static struct usb_function *f_acm_multi;
+static struct usb_function *f_ecm;
static __init int cdc_do_config(struct usb_configuration *c)
{
@@ -231,14 +233,20 @@ static __init int cdc_do_config(struct usb_configuration *c)
c->bmAttributes |= USB_CONFIG_ATT_WAKEUP;
}
- ret = ecm_bind_config(c, host_mac, the_dev);
+ f_ecm = usb_get_function(fi_ecm);
+ if (IS_ERR(f_ecm))
+ return PTR_ERR(f_ecm);
+
+ ret = usb_add_function(c, f_ecm);
if (ret < 0)
- return ret;
+ goto err_func_ecm;
/* implicit port_num is zero */
f_acm_multi = usb_get_function(fi_acm);
- if (IS_ERR(f_acm_multi))
- return PTR_ERR(f_acm_multi);
+ if (IS_ERR(f_acm_multi)) {
+ ret = PTR_ERR(f_acm_multi);
+ goto err_func_acm;
+ }
ret = usb_add_function(c, f_acm_multi);
if (ret)
@@ -253,6 +261,10 @@ err_fsg:
usb_remove_function(c, f_acm_multi);
err_conf:
usb_put_function(f_acm_multi);
+err_func_acm:
+ usb_remove_function(c, f_ecm);
+err_func_ecm:
+ usb_put_function(f_ecm);
return ret;
}
@@ -285,6 +297,9 @@ static __ref int cdc_config_register(struct usb_composite_dev *cdev)
static int __ref multi_bind(struct usb_composite_dev *cdev)
{
struct usb_gadget *gadget = cdev->gadget;
+#ifdef CONFIG_USB_G_MULTI_CDC
+ struct f_ecm_opts *ecm_opts;
+#endif
int status;
if (!can_support_ecm(cdev->gadget)) {
@@ -293,11 +308,39 @@ static int __ref multi_bind(struct usb_composite_dev *cdev)
return -EINVAL;
}
+#ifdef CONFIG_USB_G_MULTI_CDC
+ fi_ecm = usb_get_function_instance("ecm");
+ if (IS_ERR(fi_ecm))
+ return PTR_ERR(fi_ecm);
+
+ ecm_opts = container_of(fi_ecm, struct f_ecm_opts, func_inst);
+
+ gether_set_qmult(ecm_opts->net, qmult);
+ if (!gether_set_host_addr(ecm_opts->net, host_addr))
+ pr_info("using host ethernet address: %s", host_addr);
+ if (!gether_set_dev_addr(ecm_opts->net, dev_addr))
+ pr_info("using self ethernet address: %s", dev_addr);
+
+ the_dev = netdev_priv(ecm_opts->net);
+
+#elif defined USB_ETH_RNDIS
+
/* set up network link layer */
the_dev = gether_setup(cdev->gadget, dev_addr, host_addr, host_mac,
qmult);
if (IS_ERR(the_dev))
return PTR_ERR(the_dev);
+#endif
+
+#if (defined CONFIG_USB_G_MULTI_CDC && defined USB_ETH_RNDIS)
+ gether_set_gadget(ecm_opts->net, cdev->gadget);
+ status = gether_register_netdev(ecm_opts->net);
+ if (status)
+ goto fail0;
+ ecm_opts->bound = true;
+
+ gether_get_host_addr_u8(ecm_opts->net, host_mac);
+#endif
/* set up serial link layer */
fi_acm = usb_get_function_instance("acm");
@@ -345,7 +388,11 @@ fail2:
fail1:
usb_put_function_instance(fi_acm);
fail0:
+#ifdef CONFIG_USB_G_MULTI_CDC
+ usb_put_function_instance(fi_ecm);
+#else
gether_cleanup(the_dev);
+#endif
return status;
}
@@ -358,7 +405,12 @@ static int __exit multi_unbind(struct usb_composite_dev *cdev)
usb_put_function(f_acm_rndis);
#endif
usb_put_function_instance(fi_acm);
+#ifdef CONFIG_USB_G_MULTI_CDC
+ usb_put_function(f_ecm);
+ usb_put_function_instance(fi_ecm);
+#else
gether_cleanup(the_dev);
+#endif
return 0;
}
--
1.7.0.4
--
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