コード例 #1
0
ファイル: ether.c プロジェクト: lchao-bit/linaro-kernel
static int __init eth_bind(struct usb_composite_dev *cdev)
{
	int			gcnum;
	struct usb_gadget	*gadget = cdev->gadget;
	int			status;

	/* set up network link layer */
	status = gether_setup(cdev->gadget, hostaddr);
	if (status < 0)
		return status;

	/* set up main config label and device descriptor */
	if (use_eem) {
		/* EEM */
		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);
	} else if (can_support_ecm(cdev->gadget)) {
		/* ECM */
		eth_config_driver.label = "CDC Ethernet (ECM)";
	} else {
		/* CDC Subset */
		eth_config_driver.label = "CDC Subset/SAFE";

		device_desc.idVendor = cpu_to_le16(SIMPLE_VENDOR_NUM);
		device_desc.idProduct = cpu_to_le16(SIMPLE_PRODUCT_NUM);
		if (!has_rndis())
			device_desc.bDeviceClass = USB_CLASS_VENDOR_SPEC;
	}

	if (has_rndis()) {
		/* RNDIS plus ECM-or-Subset */
		device_desc.idVendor = cpu_to_le16(RNDIS_VENDOR_NUM);
		device_desc.idProduct = cpu_to_le16(RNDIS_PRODUCT_NUM);
		device_desc.bNumConfigurations = 2;
	}

	gcnum = usb_gadget_controller_number(gadget);
	if (gcnum >= 0)
		device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum);
	else {
		/* We assume that can_support_ecm() tells the truth;
		 * but if the controller isn't recognized at all then
		 * that assumption is a bit more likely to be wrong.
		 */
		dev_warn(&gadget->dev,
				"controller '%s' not recognized; trying %s\n",
				gadget->name,
				eth_config_driver.label);
		device_desc.bcdDevice =
			cpu_to_le16(0x0300 | 0x0099);
	}


	/* Allocate string descriptor numbers ... note that string
	 * contents can be overridden by the composite_dev glue.
	 */

	/* device descriptor strings: manufacturer, product */
	snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
		init_utsname()->sysname, init_utsname()->release,
		gadget->name);
	status = usb_string_id(cdev);
	if (status < 0)
		goto fail;
	strings_dev[STRING_MANUFACTURER_IDX].id = status;
	device_desc.iManufacturer = status;

	status = usb_string_id(cdev);
	if (status < 0)
		goto fail;
	strings_dev[STRING_PRODUCT_IDX].id = status;
	device_desc.iProduct = status;

	/* register our configuration(s); RNDIS first, if it's used */
	if (has_rndis()) {
		status = usb_add_config(cdev, &rndis_config_driver,
				rndis_do_config);
		if (status < 0)
			goto fail;
	}

	status = usb_add_config(cdev, &eth_config_driver, eth_do_config);
	if (status < 0)
		goto fail;

	dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n",
			DRIVER_DESC);

	return 0;

fail:
	gether_cleanup();
	return status;
}
コード例 #2
0
static int __init eth_bind(struct usb_composite_dev *cdev)
{
	int			gcnum;
	struct usb_gadget	*gadget = cdev->gadget;
	int			status;

	
	status = gether_setup(cdev->gadget, hostaddr);
	if (status < 0)
		return status;

	
	if (use_eem) {
		
		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);
	} else if (can_support_ecm(cdev->gadget)) {
		
		eth_config_driver.label = "CDC Ethernet (ECM)";
	} else {
		
		eth_config_driver.label = "CDC Subset/SAFE";

		device_desc.idVendor = cpu_to_le16(SIMPLE_VENDOR_NUM);
		device_desc.idProduct = cpu_to_le16(SIMPLE_PRODUCT_NUM);
		if (!has_rndis())
			device_desc.bDeviceClass = USB_CLASS_VENDOR_SPEC;
	}

	if (has_rndis()) {
		
		device_desc.idVendor = cpu_to_le16(RNDIS_VENDOR_NUM);
		device_desc.idProduct = cpu_to_le16(RNDIS_PRODUCT_NUM);
		device_desc.bNumConfigurations = 2;
	}

	gcnum = usb_gadget_controller_number(gadget);
	if (gcnum >= 0)
		device_desc.bcdDevice = cpu_to_le16(0x0300 | gcnum);
	else {
		
		dev_warn(&gadget->dev,
				"controller '%s' not recognized; trying %s\n",
				gadget->name,
				eth_config_driver.label);
		device_desc.bcdDevice =
			cpu_to_le16(0x0300 | 0x0099);
	}


	

	
	snprintf(manufacturer, sizeof manufacturer, "%s %s with %s",
		init_utsname()->sysname, init_utsname()->release,
		gadget->name);
	status = usb_string_id(cdev);
	if (status < 0)
		goto fail;
	strings_dev[STRING_MANUFACTURER_IDX].id = status;
	device_desc.iManufacturer = status;

	status = usb_string_id(cdev);
	if (status < 0)
		goto fail;
	strings_dev[STRING_PRODUCT_IDX].id = status;
	device_desc.iProduct = status;

	
	if (has_rndis()) {
		status = usb_add_config(cdev, &rndis_config_driver);
		if (status < 0)
			goto fail;
	}

	status = usb_add_config(cdev, &eth_config_driver);
	if (status < 0)
		goto fail;

	dev_info(&gadget->dev, "%s, version: " DRIVER_VERSION "\n",
			DRIVER_DESC);

	return 0;

fail:
	gether_cleanup();
	return status;
}