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/*
* 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 "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 __refdata struct usb_composite_driver nokia_driver = {
.name = "g_nokia",
.dev = &device_desc,
.strings = dev_strings,
.max_speed = USB_SPEED_HIGH,
.bind = nokia_bind,
.unbind = __exit_p(nokia_unbind),
};
static int __init nokia_init(void)
{
return usb_composite_probe(&nokia_driver);
}
module_init(nokia_init);
static void __exit nokia_cleanup(void)
{
usb_composite_unregister(&nokia_driver);
}
module_exit(nokia_cleanup);
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