text: /*
   * nokia.c -- Nokia Composite Gadget Driver
   *
   * Copyright (C) 2008-2010 Nokia Corporation
   * Contact: Felipe Balbi <felipe.balbi@nokia.com>
   *
   * This gadget driver borrows from serial.c which is:
   *
   * Copyright (C) 2003 Al Borchers (alborchers@steinerpoint.com)
   * Copyright (C) 2008 by David Brownell
   * Copyright (C) 2008 by Nokia Corporation
   *
   * This software is distributed under the terms of the GNU General
   * Public License ("GPL") as published by the Free Software Foundation,
   * version 2 of that License.
   */
  
  #include <linux/kernel.h>
  #include <linux/utsname.h>
  #include <linux/device.h>
  
  #include "u_serial.h"
  #include "u_ether.h"
  #include "u_phonet.h"
  #include "gadget_chips.h"
  
  /* Defines */
  
  #define NOKIA_VERSION_NUM		0x0211
  #define NOKIA_LONG_NAME			"N900 (PC-Suite Mode)"
  
  /*-------------------------------------------------------------------------*/
  
  /*
   * Kbuild is not very cooperative with respect to linking separately
   * compiled library objects into one module.  So for now we won't use
   * separate compilation ... ensuring init/exit sections work to shrink
   * the runtime footprint, and giving us at least some parts of what
   * a "gcc --combine ... part1.c part2.c part3.c ... " build would.
   */
  #include "composite.c"
  #include "usbstring.c"
  #include "config.c"
  #include "epautoconf.c"
  
  #include "u_serial.c"
  #include "f_acm.c"
  #include "f_ecm.c"
  #include "f_obex.c"
  #include "f_serial.c"
  #include "f_phonet.c"
  #include "u_ether.c"
  
  /*-------------------------------------------------------------------------*/
  
  #define NOKIA_VENDOR_ID			0x0421	/* Nokia */
  #define NOKIA_PRODUCT_ID		0x01c8	/* Nokia Gadget */
  
  /* string IDs are assigned dynamically */
  
  #define STRING_MANUFACTURER_IDX		0
  #define STRING_PRODUCT_IDX		1
  #define STRING_DESCRIPTION_IDX		2
  
  static char manufacturer_nokia[] = "Nokia";
  static const char product_nokia[] = NOKIA_LONG_NAME;
  static const char description_nokia[] = "PC-Suite Configuration";
  
  static struct usb_string strings_dev[] = {
  	[STRING_MANUFACTURER_IDX].s = manufacturer_nokia,
  	[STRING_PRODUCT_IDX].s = NOKIA_LONG_NAME,
  	[STRING_DESCRIPTION_IDX].s = description_nokia,
  	{  } /* end of list */
  };
  
  static struct usb_gadget_strings stringtab_dev = {
  	.language	= 0x0409,	/* en-us */
  	.strings	= strings_dev,
  };
  
  static struct usb_gadget_strings *dev_strings[] = {
  	&stringtab_dev,
  	NULL,
  };
  
  static struct usb_device_descriptor device_desc = {
  	.bLength		= USB_DT_DEVICE_SIZE,
  	.bDescriptorType	= USB_DT_DEVICE,
  	.bcdUSB			= __constant_cpu_to_le16(0x0200),
  	.bDeviceClass		= USB_CLASS_COMM,
  	.idVendor		= __constant_cpu_to_le16(NOKIA_VENDOR_ID),
  	.idProduct		= __constant_cpu_to_le16(NOKIA_PRODUCT_ID),
  	/* .iManufacturer = DYNAMIC */
  	/* .iProduct = DYNAMIC */
  	.bNumConfigurations =	1,
  };
  
  /*-------------------------------------------------------------------------*/
  
  /* Module */
  MODULE_DESCRIPTION("Nokia composite gadget driver for N900");
  MODULE_AUTHOR("Felipe Balbi");
  MODULE_LICENSE("GPL");
  
  /*-------------------------------------------------------------------------*/
  
  static u8 hostaddr[ETH_ALEN];
  
  static int __init nokia_bind_config(struct usb_configuration *c)
  {
  	int status = 0;
  
  	status = phonet_bind_config(c);
  	if (status)
  		printk(KERN_DEBUG "could not bind phonet config\n");
  
  	status = obex_bind_config(c, 0);
  	if (status)
  		printk(KERN_DEBUG "could not bind obex config %d\n", 0);
  
  	status = obex_bind_config(c, 1);
  	if (status)
  		printk(KERN_DEBUG "could not bind obex config %d\n", 0);
  
  	status = acm_bind_config(c, 2);
  	if (status)
  		printk(KERN_DEBUG "could not bind acm config\n");
  
  	status = ecm_bind_config(c, hostaddr);
  	if (status)
  		printk(KERN_DEBUG "could not bind ecm config\n");
  
  	return status;
  }
  
  static struct usb_configuration nokia_config_500ma_driver = {
  	.label		= "Bus Powered",
  	.bConfigurationValue = 1,
  	/* .iConfiguration = DYNAMIC */
  	.bmAttributes	= USB_CONFIG_ATT_ONE,
  	.bMaxPower	= 250, /* 500mA */
  };
  
  static struct usb_configuration nokia_config_100ma_driver = {
  	.label		= "Self Powered",
  	.bConfigurationValue = 2,
  	/* .iConfiguration = DYNAMIC */
  	.bmAttributes	= USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
  	.bMaxPower	= 50, /* 100 mA */
  };
  
  static int __init nokia_bind(struct usb_composite_dev *cdev)
  {
  	int			gcnum;
  	struct usb_gadget	*gadget = cdev->gadget;
  	int			status;
  
  	status = gphonet_setup(cdev->gadget);
  	if (status < 0)
  		goto err_phonet;
  
  	status = gserial_setup(cdev->gadget, 3);
  	if (status < 0)
  		goto err_serial;
  
  	status = gether_setup(cdev->gadget, hostaddr);
  	if (status < 0)
  		goto err_ether;
  
  	status = usb_string_id(cdev);
  	if (status < 0)
  		goto err_usb;
  	strings_dev[STRING_MANUFACTURER_IDX].id = status;
  
  	device_desc.iManufacturer = status;
  
  	status = usb_string_id(cdev);
  	if (status < 0)
  		goto err_usb;
  	strings_dev[STRING_PRODUCT_IDX].id = status;
  
  	device_desc.iProduct = status;
  
  	/* config description */
  	status = usb_string_id(cdev);
  	if (status < 0)
  		goto err_usb;
  	strings_dev[STRING_DESCRIPTION_IDX].id = status;
  
  	nokia_config_500ma_driver.iConfiguration = status;
  	nokia_config_100ma_driver.iConfiguration = status;
  
  	/* set up other descriptors */
  	gcnum = usb_gadget_controller_number(gadget);
  	if (gcnum >= 0)
  		device_desc.bcdDevice = cpu_to_le16(NOKIA_VERSION_NUM);
  	else {
  		/* this should only work with hw that supports altsettings
  		 * and several endpoints, anything else, panic.
  		 */
  		pr_err("nokia_bind: controller '%s' not recognized\n",
  			gadget->name);
  		goto err_usb;
  	}
  
  	/* finally register the configuration */
  	status = usb_add_config(cdev, &nokia_config_500ma_driver,
  			nokia_bind_config);
  	if (status < 0)
  		goto err_usb;
  
  	status = usb_add_config(cdev, &nokia_config_100ma_driver,
  			nokia_bind_config);
  	if (status < 0)
  		goto err_usb;
  
  	dev_info(&gadget->dev, "%s\n", NOKIA_LONG_NAME);
  
  	return 0;
  
  err_usb:
  	gether_cleanup();
  err_ether:
  	gserial_cleanup();
  err_serial:
  	gphonet_cleanup();
  err_phonet:
  	return status;
  }
  
  static int __exit nokia_unbind(struct usb_composite_dev *cdev)
  {
  	gphonet_cleanup();
  	gserial_cleanup();
  	gether_cleanup();
  
  	return 0;
  }
  
  static struct usb_composite_driver nokia_driver = {
  	.name		= "g_nokia",
  	.dev		= &device_desc,
  	.strings	= dev_strings,
  	.max_speed	= USB_SPEED_HIGH,
  	.unbind		= __exit_p(nokia_unbind),
  };
  
  static int __init nokia_init(void)
  {
  	return usb_composite_probe(&nokia_driver, nokia_bind);
  }
  module_init(nokia_init);
  
  static void __exit nokia_cleanup(void)
  {
  	usb_composite_unregister(&nokia_driver);
  }
  module_exit(nokia_cleanup);
  
  