1 files changed, 181 insertions, 46 deletions

diff --git a/drivers/usb/gadget/f_obex.c b/drivers/usb/gadget/f_obex.c
index 36a004563b82..8aa2be5329bc 100644
--- a/drivers/usb/gadget/f_obex.c
+++ b/drivers/usb/gadget/f_obex.c
@@ -72,7 +72,7 @@ static struct usb_gadget_strings *obex_strings[] = {
 
 /*-------------------------------------------------------------------------*/
 
-static struct usb_interface_descriptor obex_control_intf __initdata = {
+static struct usb_interface_descriptor obex_control_intf = {
 	.bLength		= sizeof(obex_control_intf),
 	.bDescriptorType	= USB_DT_INTERFACE,
 	.bInterfaceNumber	= 0,
@@ -83,7 +83,7 @@ static struct usb_interface_descriptor obex_control_intf __initdata = {
 	.bInterfaceSubClass	= USB_CDC_SUBCLASS_OBEX,
 };
 
-static struct usb_interface_descriptor obex_data_nop_intf __initdata = {
+static struct usb_interface_descriptor obex_data_nop_intf = {
 	.bLength		= sizeof(obex_data_nop_intf),
 	.bDescriptorType	= USB_DT_INTERFACE,
 	.bInterfaceNumber	= 1,
@@ -93,7 +93,7 @@ static struct usb_interface_descriptor obex_data_nop_intf __initdata = {
 	.bInterfaceClass	= USB_CLASS_CDC_DATA,
 };
 
-static struct usb_interface_descriptor obex_data_intf __initdata = {
+static struct usb_interface_descriptor obex_data_intf = {
 	.bLength		= sizeof(obex_data_intf),
 	.bDescriptorType	= USB_DT_INTERFACE,
 	.bInterfaceNumber	= 2,
@@ -103,14 +103,14 @@ static struct usb_interface_descriptor obex_data_intf __initdata = {
 	.bInterfaceClass	= USB_CLASS_CDC_DATA,
 };
 
-static struct usb_cdc_header_desc obex_cdc_header_desc __initdata = {
+static struct usb_cdc_header_desc obex_cdc_header_desc = {
 	.bLength		= sizeof(obex_cdc_header_desc),
 	.bDescriptorType	= USB_DT_CS_INTERFACE,
 	.bDescriptorSubType	= USB_CDC_HEADER_TYPE,
 	.bcdCDC			= cpu_to_le16(0x0120),
 };
 
-static struct usb_cdc_union_desc obex_cdc_union_desc __initdata = {
+static struct usb_cdc_union_desc obex_cdc_union_desc = {
 	.bLength		= sizeof(obex_cdc_union_desc),
 	.bDescriptorType	= USB_DT_CS_INTERFACE,
 	.bDescriptorSubType	= USB_CDC_UNION_TYPE,
@@ -118,7 +118,7 @@ static struct usb_cdc_union_desc obex_cdc_union_desc __initdata = {
 	.bSlaveInterface0	= 2,
 };
 
-static struct usb_cdc_obex_desc obex_desc __initdata = {
+static struct usb_cdc_obex_desc obex_desc = {
 	.bLength		= sizeof(obex_desc),
 	.bDescriptorType	= USB_DT_CS_INTERFACE,
 	.bDescriptorSubType	= USB_CDC_OBEX_TYPE,
@@ -127,7 +127,7 @@ static struct usb_cdc_obex_desc obex_desc __initdata = {
 
 /* High-Speed Support */
 
-static struct usb_endpoint_descriptor obex_hs_ep_out_desc __initdata = {
+static struct usb_endpoint_descriptor obex_hs_ep_out_desc = {
 	.bLength		= USB_DT_ENDPOINT_SIZE,
 	.bDescriptorType	= USB_DT_ENDPOINT,
 
@@ -136,7 +136,7 @@ static struct usb_endpoint_descriptor obex_hs_ep_out_desc __initdata = {
 	.wMaxPacketSize		= cpu_to_le16(512),
 };
 
-static struct usb_endpoint_descriptor obex_hs_ep_in_desc __initdata = {
+static struct usb_endpoint_descriptor obex_hs_ep_in_desc = {
 	.bLength		= USB_DT_ENDPOINT_SIZE,
 	.bDescriptorType	= USB_DT_ENDPOINT,
 
@@ -145,7 +145,7 @@ static struct usb_endpoint_descriptor obex_hs_ep_in_desc __initdata = {
 	.wMaxPacketSize		= cpu_to_le16(512),
 };
 
-static struct usb_descriptor_header *hs_function[] __initdata = {
+static struct usb_descriptor_header *hs_function[] = {
 	(struct usb_descriptor_header *) &obex_control_intf,
 	(struct usb_descriptor_header *) &obex_cdc_header_desc,
 	(struct usb_descriptor_header *) &obex_desc,
@@ -160,7 +160,7 @@ static struct usb_descriptor_header *hs_function[] __initdata = {
 
 /* Full-Speed Support */
 
-static struct usb_endpoint_descriptor obex_fs_ep_in_desc __initdata = {
+static struct usb_endpoint_descriptor obex_fs_ep_in_desc = {
 	.bLength		= USB_DT_ENDPOINT_SIZE,
 	.bDescriptorType	= USB_DT_ENDPOINT,
 
@@ -168,7 +168,7 @@ static struct usb_endpoint_descriptor obex_fs_ep_in_desc __initdata = {
 	.bmAttributes		= USB_ENDPOINT_XFER_BULK,
 };
 
-static struct usb_endpoint_descriptor obex_fs_ep_out_desc __initdata = {
+static struct usb_endpoint_descriptor obex_fs_ep_out_desc = {
 	.bLength		= USB_DT_ENDPOINT_SIZE,
 	.bDescriptorType	= USB_DT_ENDPOINT,
 
@@ -176,7 +176,7 @@ static struct usb_endpoint_descriptor obex_fs_ep_out_desc __initdata = {
 	.bmAttributes		= USB_ENDPOINT_XFER_BULK,
 };
 
-static struct usb_descriptor_header *fs_function[] __initdata = {
+static struct usb_descriptor_header *fs_function[] = {
 	(struct usb_descriptor_header *) &obex_control_intf,
 	(struct usb_descriptor_header *) &obex_cdc_header_desc,
 	(struct usb_descriptor_header *) &obex_desc,
@@ -290,14 +290,43 @@ static void obex_disconnect(struct gserial *g)
 
 /*-------------------------------------------------------------------------*/
 
-static int __init
-obex_bind(struct usb_configuration *c, struct usb_function *f)
+/* Some controllers can't support CDC OBEX ... */
+static inline bool can_support_obex(struct usb_configuration *c)
+{
+	/* Since the first interface is a NOP, we can ignore the
+	 * issue of multi-interface support on most controllers.
+	 *
+	 * Altsettings are mandatory, however...
+	 */
+	if (!gadget_supports_altsettings(c->cdev->gadget))
+		return false;
+
+	/* everything else is *probably* fine ... */
+	return true;
+}
+
+static int obex_bind(struct usb_configuration *c, struct usb_function *f)
 {
 	struct usb_composite_dev *cdev = c->cdev;
 	struct f_obex		*obex = func_to_obex(f);
 	int			status;
 	struct usb_ep		*ep;
 
+	if (!can_support_obex(c))
+		return -EINVAL;
+
+	if (obex_string_defs[OBEX_CTRL_IDX].id == 0) {
+		status = usb_string_ids_tab(c->cdev, obex_string_defs);
+		if (status < 0)
+			return status;
+		obex_control_intf.iInterface =
+			obex_string_defs[OBEX_CTRL_IDX].id;
+
+		status = obex_string_defs[OBEX_DATA_IDX].id;
+		obex_data_nop_intf.iInterface = status;
+		obex_data_intf.iInterface = status;
+	}
+
 	/* allocate instance-specific interface IDs, and patch descriptors */
 
 	status = usb_interface_id(c, f);
@@ -319,6 +348,7 @@ obex_bind(struct usb_configuration *c, struct usb_function *f)
 
 	/* allocate instance-specific endpoints */
 
+	status = -ENODEV;
 	ep = usb_ep_autoconfig(cdev->gadget, &obex_fs_ep_in_desc);
 	if (!ep)
 		goto fail;
@@ -376,29 +406,16 @@ fail:
 	return status;
 }
 
+#ifdef USBF_OBEX_INCLUDED
+
 static void
-obex_unbind(struct usb_configuration *c, struct usb_function *f)
+obex_old_unbind(struct usb_configuration *c, struct usb_function *f)
 {
 	obex_string_defs[OBEX_CTRL_IDX].id = 0;
 	usb_free_all_descriptors(f);
 	kfree(func_to_obex(f));
 }
 
-/* Some controllers can't support CDC OBEX ... */
-static inline bool can_support_obex(struct usb_configuration *c)
-{
-	/* Since the first interface is a NOP, we can ignore the
-	 * issue of multi-interface support on most controllers.
-	 *
-	 * Altsettings are mandatory, however...
-	 */
-	if (!gadget_supports_altsettings(c->cdev->gadget))
-		return false;
-
-	/* everything else is *probably* fine ... */
-	return true;
-}
-
 /**
  * obex_bind_config - add a CDC OBEX function to a configuration
  * @c: the configuration to support the CDC OBEX instance
@@ -412,21 +429,6 @@ int __init obex_bind_config(struct usb_configuration *c, u8 port_num)
 	struct f_obex	*obex;
 	int		status;
 
-	if (!can_support_obex(c))
-		return -EINVAL;
-
-	if (obex_string_defs[OBEX_CTRL_IDX].id == 0) {
-		status = usb_string_ids_tab(c->cdev, obex_string_defs);
-		if (status < 0)
-			return status;
-		obex_control_intf.iInterface =
-			obex_string_defs[OBEX_CTRL_IDX].id;
-
-		status = obex_string_defs[OBEX_DATA_IDX].id;
-		obex_data_nop_intf.iInterface = status;
-		obex_data_intf.iInterface = status;
-	}
-
 	/* allocate and initialize one new instance */
 	obex = kzalloc(sizeof *obex, GFP_KERNEL);
 	if (!obex)
@@ -441,7 +443,7 @@ int __init obex_bind_config(struct usb_configuration *c, u8 port_num)
 	obex->port.func.strings = obex_strings;
 	/* descriptors are per-instance copies */
 	obex->port.func.bind = obex_bind;
-	obex->port.func.unbind = obex_unbind;
+	obex->port.func.unbind = obex_old_unbind;
 	obex->port.func.set_alt = obex_set_alt;
 	obex->port.func.get_alt = obex_get_alt;
 	obex->port.func.disable = obex_disable;
@@ -453,5 +455,138 @@ int __init obex_bind_config(struct usb_configuration *c, u8 port_num)
 	return status;
 }
 
+#else
+
+static inline struct f_serial_opts *to_f_serial_opts(struct config_item *item)
+{
+	return container_of(to_config_group(item), struct f_serial_opts,
+			    func_inst.group);
+}
+
+CONFIGFS_ATTR_STRUCT(f_serial_opts);
+static ssize_t f_obex_attr_show(struct config_item *item,
+				struct configfs_attribute *attr,
+				char *page)
+{
+	struct f_serial_opts *opts = to_f_serial_opts(item);
+	struct f_serial_opts_attribute *f_serial_opts_attr =
+		container_of(attr, struct f_serial_opts_attribute, attr);
+	ssize_t ret = 0;
+
+	if (f_serial_opts_attr->show)
+		ret = f_serial_opts_attr->show(opts, page);
+
+	return ret;
+}
+
+static void obex_attr_release(struct config_item *item)
+{
+	struct f_serial_opts *opts = to_f_serial_opts(item);
+
+	usb_put_function_instance(&opts->func_inst);
+}
+
+static struct configfs_item_operations obex_item_ops = {
+	.release	= obex_attr_release,
+	.show_attribute = f_obex_attr_show,
+};
+
+static ssize_t f_obex_port_num_show(struct f_serial_opts *opts, char *page)
+{
+	return sprintf(page, "%u\n", opts->port_num);
+}
+
+static struct f_serial_opts_attribute f_obex_port_num =
+	__CONFIGFS_ATTR_RO(port_num, f_obex_port_num_show);
+
+static struct configfs_attribute *acm_attrs[] = {
+	&f_obex_port_num.attr,
+	NULL,
+};
+
+static struct config_item_type obex_func_type = {
+	.ct_item_ops	= &obex_item_ops,
+	.ct_attrs	= acm_attrs,
+	.ct_owner	= THIS_MODULE,
+};
+
+static void obex_free_inst(struct usb_function_instance *f)
+{
+	struct f_serial_opts *opts;
+
+	opts = container_of(f, struct f_serial_opts, func_inst);
+	gserial_free_line(opts->port_num);
+	kfree(opts);
+}
+
+static struct usb_function_instance *obex_alloc_inst(void)
+{
+	struct f_serial_opts *opts;
+	int ret;
+
+	opts = kzalloc(sizeof(*opts), GFP_KERNEL);
+	if (!opts)
+		return ERR_PTR(-ENOMEM);
+
+	opts->func_inst.free_func_inst = obex_free_inst;
+	ret = gserial_alloc_line(&opts->port_num);
+	if (ret) {
+		kfree(opts);
+		return ERR_PTR(ret);
+	}
+	config_group_init_type_name(&opts->func_inst.group, "",
+				    &obex_func_type);
+
+	return &opts->func_inst;
+}
+
+static void obex_free(struct usb_function *f)
+{
+	struct f_obex *obex;
+
+	obex = func_to_obex(f);
+	kfree(obex);
+}
+
+static void obex_unbind(struct usb_configuration *c, struct usb_function *f)
+{
+	obex_string_defs[OBEX_CTRL_IDX].id = 0;
+	usb_free_all_descriptors(f);
+}
+
+struct usb_function *obex_alloc(struct usb_function_instance *fi)
+{
+	struct f_obex	*obex;
+	struct f_serial_opts *opts;
+
+	/* allocate and initialize one new instance */
+	obex = kzalloc(sizeof(*obex), GFP_KERNEL);
+	if (!obex)
+		return ERR_PTR(-ENOMEM);
+
+	opts = container_of(fi, struct f_serial_opts, func_inst);
+
+	obex->port_num = opts->port_num;
+
+	obex->port.connect = obex_connect;
+	obex->port.disconnect = obex_disconnect;
+
+	obex->port.func.name = "obex";
+	obex->port.func.strings = obex_strings;
+	/* descriptors are per-instance copies */
+	obex->port.func.bind = obex_bind;
+	obex->port.func.unbind = obex_unbind;
+	obex->port.func.set_alt = obex_set_alt;
+	obex->port.func.get_alt = obex_get_alt;
+	obex->port.func.disable = obex_disable;
+	obex->port.func.free_func = obex_free;
+
+	return &obex->port.func;
+}
+
+DECLARE_USB_FUNCTION_INIT(obex, obex_alloc_inst, obex_alloc);
+
+#endif
+
 MODULE_AUTHOR("Felipe Balbi");
 MODULE_LICENSE("GPL");