[deliverable/linux.git] / drivers / usb / gadget / nokia.c

/*
 * 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/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 "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"

/*-------------------------------------------------------------------------*/
USB_GADGET_COMPOSITE_OPTIONS();

#define NOKIA_VENDOR_ID			0x0421	/* Nokia */
#define NOKIA_PRODUCT_ID		0x01c8	/* Nokia Gadget */

/* string IDs are assigned dynamically */

#define STRING_DESCRIPTION_IDX		USB_GADGET_FIRST_AVAIL_IDX

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[] = {
	[USB_GADGET_MANUFACTURER_IDX].s = manufacturer_nokia,
	[USB_GADGET_PRODUCT_IDX].s = NOKIA_LONG_NAME,
	[USB_GADGET_SERIAL_IDX].s = "",
	[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_ids_tab(cdev, strings_dev);
	if (status < 0)
		goto err_usb;
	device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
	status = strings_dev[STRING_DESCRIPTION_IDX].id;
	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;

	usb_composite_overwrite_options(cdev, &coverwrite);
	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);
Commit	Line	Data
f358f5b4 FB	1	/*
	2	* nokia.c -- Nokia Composite Gadget Driver
	3	*
	4	* Copyright (C) 2008-2010 Nokia Corporation
	5	* Contact: Felipe Balbi <felipe.balbi@nokia.com>
	6	*
	7	* This gadget driver borrows from serial.c which is:
	8	*
	9	* Copyright (C) 2003 Al Borchers (alborchers@steinerpoint.com)
	10	* Copyright (C) 2008 by David Brownell
	11	* Copyright (C) 2008 by Nokia Corporation
	12	*
	13	* This software is distributed under the terms of the GNU General
	14	* Public License ("GPL") as published by the Free Software Foundation,
	15	* version 2 of that License.
	16	*/
	17
	18	#include <linux/kernel.h>
f358f5b4 FB	19	#include <linux/device.h>
	20
	21	#include "u_serial.h"
	22	#include "u_ether.h"
	23	#include "u_phonet.h"
	24	#include "gadget_chips.h"
	25
	26	/* Defines */
	27
	28	#define NOKIA_VERSION_NUM 0x0211
	29	#define NOKIA_LONG_NAME "N900 (PC-Suite Mode)"
	30
	31	/-------------------------------------------------------------------------/
	32
	33	/*
	34	* Kbuild is not very cooperative with respect to linking separately
	35	* compiled library objects into one module. So for now we won't use
	36	* separate compilation ... ensuring init/exit sections work to shrink
	37	* the runtime footprint, and giving us at least some parts of what
	38	* a "gcc --combine ... part1.c part2.c part3.c ... " build would.
	39	*/
f358f5b4 FB	40	#include "u_serial.c"
	41	#include "f_acm.c"
	42	#include "f_ecm.c"
	43	#include "f_obex.c"
	44	#include "f_serial.c"
	45	#include "f_phonet.c"
	46	#include "u_ether.c"
	47
	48	/-------------------------------------------------------------------------/
7d16e8d3	49	USB_GADGET_COMPOSITE_OPTIONS();
f358f5b4 FB	50
	51	#define NOKIA_VENDOR_ID 0x0421 /* Nokia */
	52	#define NOKIA_PRODUCT_ID 0x01c8 /* Nokia Gadget */
	53
	54	/* string IDs are assigned dynamically */
	55
276e2e4f	56	#define STRING_DESCRIPTION_IDX USB_GADGET_FIRST_AVAIL_IDX
f358f5b4 FB	57
	58	static char manufacturer_nokia[] = "Nokia";
	59	static const char product_nokia[] = NOKIA_LONG_NAME;
	60	static const char description_nokia[] = "PC-Suite Configuration";
	61
	62	static struct usb_string strings_dev[] = {
276e2e4f SAS	63	[USB_GADGET_MANUFACTURER_IDX].s = manufacturer_nokia,
	64	[USB_GADGET_PRODUCT_IDX].s = NOKIA_LONG_NAME,
	65	[USB_GADGET_SERIAL_IDX].s = "",
f358f5b4 FB	66	[STRING_DESCRIPTION_IDX].s = description_nokia,
	67	{ } /* end of list */
	68	};
	69
	70	static struct usb_gadget_strings stringtab_dev = {
	71	.language = 0x0409, /* en-us */
	72	.strings = strings_dev,
	73	};
	74
	75	static struct usb_gadget_strings *dev_strings[] = {
	76	&stringtab_dev,
	77	NULL,
	78	};
	79
	80	static struct usb_device_descriptor device_desc = {
	81	.bLength = USB_DT_DEVICE_SIZE,
	82	.bDescriptorType = USB_DT_DEVICE,
	83	.bcdUSB = __constant_cpu_to_le16(0x0200),
	84	.bDeviceClass = USB_CLASS_COMM,
	85	.idVendor = __constant_cpu_to_le16(NOKIA_VENDOR_ID),
	86	.idProduct = __constant_cpu_to_le16(NOKIA_PRODUCT_ID),
	87	/* .iManufacturer = DYNAMIC */
	88	/* .iProduct = DYNAMIC */
	89	.bNumConfigurations = 1,
	90	};
	91
	92	/-------------------------------------------------------------------------/
	93
	94	/* Module */
	95	MODULE_DESCRIPTION("Nokia composite gadget driver for N900");
	96	MODULE_AUTHOR("Felipe Balbi");
	97	MODULE_LICENSE("GPL");
	98
	99	/-------------------------------------------------------------------------/
	100
	101	static u8 hostaddr[ETH_ALEN];
	102
	103	static int __init nokia_bind_config(struct usb_configuration *c)
	104	{
	105	int status = 0;
	106
	107	status = phonet_bind_config(c);
	108	if (status)
	109	printk(KERN_DEBUG "could not bind phonet config\n");
	110
	111	status = obex_bind_config(c, 0);
	112	if (status)
	113	printk(KERN_DEBUG "could not bind obex config %d\n", 0);
	114
	115	status = obex_bind_config(c, 1);
	116	if (status)
	117	printk(KERN_DEBUG "could not bind obex config %d\n", 0);
	118
	119	status = acm_bind_config(c, 2);
	120	if (status)
	121	printk(KERN_DEBUG "could not bind acm config\n");
	122
	123	status = ecm_bind_config(c, hostaddr);
	124	if (status)
	125	printk(KERN_DEBUG "could not bind ecm config\n");
	126
	127	return status;
	128	}
	129
130	static struct usb_configuration nokia_config_500ma_driver = {
131	.label = "Bus Powered",
f358f5b4 FB	132	.bConfigurationValue = 1,
	133	/* .iConfiguration = DYNAMIC */
	134	.bmAttributes = USB_CONFIG_ATT_ONE,
	135	.bMaxPower = 250, /* 500mA */
	136	};
	137
	138	static struct usb_configuration nokia_config_100ma_driver = {
	139	.label = "Self Powered",
f358f5b4 FB	140	.bConfigurationValue = 2,
	141	/* .iConfiguration = DYNAMIC */
	142	.bmAttributes = USB_CONFIG_ATT_ONE \| USB_CONFIG_ATT_SELFPOWER,
	143	.bMaxPower = 50, /* 100 mA */
	144	};
	145
	146	static int __init nokia_bind(struct usb_composite_dev *cdev)
	147	{
	148	int gcnum;
	149	struct usb_gadget *gadget = cdev->gadget;
	150	int status;
	151
	152	status = gphonet_setup(cdev->gadget);
	153	if (status < 0)
	154	goto err_phonet;
	155
	156	status = gserial_setup(cdev->gadget, 3);
	157	if (status < 0)
	158	goto err_serial;
	159
	160	status = gether_setup(cdev->gadget, hostaddr);
	161	if (status < 0)
	162	goto err_ether;
	163
e1f15ccb	164	status = usb_string_ids_tab(cdev, strings_dev);
f358f5b4 FB	165	if (status < 0)
f358f5b4 FB	166	goto err_usb;
276e2e4f SAS	167	device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
276e2e4f SAS	168	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
e1f15ccb	169	status = strings_dev[STRING_DESCRIPTION_IDX].id;
f358f5b4 FB	170	nokia_config_500ma_driver.iConfiguration = status;
	171	nokia_config_100ma_driver.iConfiguration = status;
	172
	173	/* set up other descriptors */
	174	gcnum = usb_gadget_controller_number(gadget);
	175	if (gcnum >= 0)
	176	device_desc.bcdDevice = cpu_to_le16(NOKIA_VERSION_NUM);
	177	else {
	178	/* this should only work with hw that supports altsettings
	179	* and several endpoints, anything else, panic.
	180	*/
	181	pr_err("nokia_bind: controller '%s' not recognized\n",
	182	gadget->name);
	183	goto err_usb;
	184	}
	185
25985edc	186	/* finally register the configuration */
c9bfff9c UKK	187	status = usb_add_config(cdev, &nokia_config_500ma_driver,
c9bfff9c UKK	188	nokia_bind_config);
f358f5b4 FB	189	if (status < 0)
	190	goto err_usb;
	191
c9bfff9c UKK	192	status = usb_add_config(cdev, &nokia_config_100ma_driver,
c9bfff9c UKK	193	nokia_bind_config);
f358f5b4 FB	194	if (status < 0)
	195	goto err_usb;
	196
7d16e8d3	197	usb_composite_overwrite_options(cdev, &coverwrite);
f358f5b4 FB	198	dev_info(&gadget->dev, "%s\n", NOKIA_LONG_NAME);
	199
	200	return 0;
	201
	202	err_usb:
	203	gether_cleanup();
	204	err_ether:
	205	gserial_cleanup();
	206	err_serial:
	207	gphonet_cleanup();
	208	err_phonet:
	209	return status;
	210	}
	211
	212	static int __exit nokia_unbind(struct usb_composite_dev *cdev)
	213	{
	214	gphonet_cleanup();
	215	gserial_cleanup();
	216	gether_cleanup();
	217
	218	return 0;
	219	}
	220
c2ec75c2	221	static __refdata struct usb_composite_driver nokia_driver = {
f358f5b4 FB	222	.name = "g_nokia",
	223	.dev = &device_desc,
	224	.strings = dev_strings,
35a0e0bf	225	.max_speed = USB_SPEED_HIGH,
03e42bd5	226	.bind = nokia_bind,
f358f5b4 FB	227	.unbind = __exit_p(nokia_unbind),
	228	};
	229
	230	static int __init nokia_init(void)
	231	{
03e42bd5	232	return usb_composite_probe(&nokia_driver);
f358f5b4 FB	233	}
	234	module_init(nokia_init);
	235
	236	static void __exit nokia_cleanup(void)
	237	{
	238	usb_composite_unregister(&nokia_driver);
	239	}
	240	module_exit(nokia_cleanup);
	241