Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxx>
Signed-off-by: Kyungmin Park <kyungmin.park@xxxxxxxxxxx>
---
.../ABI/testing/configfs-usb-gadget-phonet | 8 +++
drivers/usb/gadget/Kconfig | 10 ++++
drivers/usb/gadget/f_phonet.c | 56 ++++++++++++++++++++
3 files changed, 74 insertions(+), 0 deletions(-)
create mode 100644 Documentation/ABI/testing/configfs-usb-gadget-phonet
diff --git a/Documentation/ABI/testing/configfs-usb-gadget-phonet b/Documentation/ABI/testing/configfs-usb-gadget-phonet
new file mode 100644
index 0000000..19b67d3
--- /dev/null
+++ b/Documentation/ABI/testing/configfs-usb-gadget-phonet
@@ -0,0 +1,8 @@
+What: /config/usb-gadget/gadget/functions/phonet.name
+Date: May 2013
+KenelVersion: 3.11
+Description:
+
+ This item contains just one readonly attribute: ifname.
+ It contains the network interface name assigned during
+ network device registration.
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 90149a3..6dd2192 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -657,6 +657,16 @@ config USB_CONFIGFS_ECM
favor of simpler vendor-specific hardware, but is widely
supported by firmware for smart network devices.
+config USB_CONFIGFS_PHONET
+ boolean "Phonet protocol"
+ depends on USB_CONFIGFS
+ depends on NET
+ depends on PHONET
+ select USB_U_ETHER
+ select USB_F_PHONET
+ help
+ The Phonet protocol implementation for USB device.
+
config USB_ZERO
tristate "Gadget Zero (DEVELOPMENT)"
diff --git a/drivers/usb/gadget/f_phonet.c b/drivers/usb/gadget/f_phonet.c
index 97b6f29..f265bbb 100644
--- a/drivers/usb/gadget/f_phonet.c
+++ b/drivers/usb/gadget/f_phonet.c
@@ -26,6 +26,7 @@
#include <linux/usb/composite.h>
#include "u_phonet.h"
+#include "u_ether.h"
#define PN_MEDIA_USB 0x1B
#define MAXPACKET 512
@@ -576,6 +577,58 @@ err:
return status;
}
+static inline struct f_phonet_opts *to_f_phonet_opts(struct config_item *item)
+{
+ return container_of(to_config_group(item), struct f_phonet_opts,
+ func_inst.group);
+}
+
+CONFIGFS_ATTR_STRUCT(f_phonet_opts);
+static ssize_t f_phonet_attr_show(struct config_item *item,
+ struct configfs_attribute *attr,
+ char *page)
+{
+ struct f_phonet_opts *opts = to_f_phonet_opts(item);
+ struct f_phonet_opts_attribute *f_phonet_opts_attr =
+ container_of(attr, struct f_phonet_opts_attribute, attr);
+ ssize_t ret = 0;
+
+ if (f_phonet_opts_attr->show)
+ ret = f_phonet_opts_attr->show(opts, page);
+ return ret;
+}
+
+static void phonet_attr_release(struct config_item *item)
+{
+ struct f_phonet_opts *opts = to_f_phonet_opts(item);
+
+ usb_put_function_instance(&opts->func_inst);
+}
+
+static struct configfs_item_operations phonet_item_ops = {
+ .release = phonet_attr_release,
+ .show_attribute = f_phonet_attr_show,
+};
+
+static ssize_t f_phonet_ifname_show(struct f_phonet_opts *opts, char *page)
+{
+ return gether_get_ifname(opts->net, page, PAGE_SIZE);
+}
+
+static struct f_phonet_opts_attribute f_phonet_ifname =
+ __CONFIGFS_ATTR_RO(ifname, f_phonet_ifname_show);
+
+static struct configfs_attribute *phonet_attrs[] = {
+ &f_phonet_ifname.attr,
+ NULL,
+};
+
+static struct config_item_type phonet_func_type = {
+ .ct_item_ops = &phonet_item_ops,
+ .ct_attrs = phonet_attrs,
+ .ct_owner = THIS_MODULE,
+};
+
static void phonet_free_inst(struct usb_function_instance *f)
{
struct f_phonet_opts *opts;
@@ -601,6 +654,9 @@ static struct usb_function_instance *phonet_alloc_inst(void)
if (IS_ERR(opts->net))
return ERR_PTR(PTR_ERR(opts->net));
+ config_group_init_type_name(&opts->func_inst.group, "",
+ &phonet_func_type);
+
return &opts->func_inst;
}
--
1.7.0.4
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