[GitHub/mt8127/android_kernel_alcatel_ttab.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/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 "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>
	19	#include <linux/utsname.h>
	20	#include <linux/device.h>
	21
	22	#include "u_serial.h"
	23	#include "u_ether.h"
	24	#include "u_phonet.h"
	25	#include "gadget_chips.h"
	26
	27	/* Defines */
	28
	29	#define NOKIA_VERSION_NUM 0x0211
	30	#define NOKIA_LONG_NAME "N900 (PC-Suite Mode)"
	31
	32	/-------------------------------------------------------------------------/
	33
	34	/*
	35	* Kbuild is not very cooperative with respect to linking separately
	36	* compiled library objects into one module. So for now we won't use
	37	* separate compilation ... ensuring init/exit sections work to shrink
	38	* the runtime footprint, and giving us at least some parts of what
	39	* a "gcc --combine ... part1.c part2.c part3.c ... " build would.
	40	*/
	41	#include "composite.c"
f358f5b4 FB	42
	43	#include "u_serial.c"
	44	#include "f_acm.c"
	45	#include "f_ecm.c"
	46	#include "f_obex.c"
	47	#include "f_serial.c"
	48	#include "f_phonet.c"
	49	#include "u_ether.c"
	50
	51	/-------------------------------------------------------------------------/
7d16e8d3	52	USB_GADGET_COMPOSITE_OPTIONS();
f358f5b4 FB	53
	54	#define NOKIA_VENDOR_ID 0x0421 /* Nokia */
	55	#define NOKIA_PRODUCT_ID 0x01c8 /* Nokia Gadget */
	56
	57	/* string IDs are assigned dynamically */
	58
276e2e4f	59	#define STRING_DESCRIPTION_IDX USB_GADGET_FIRST_AVAIL_IDX
f358f5b4 FB	60
	61	static char manufacturer_nokia[] = "Nokia";
	62	static const char product_nokia[] = NOKIA_LONG_NAME;
	63	static const char description_nokia[] = "PC-Suite Configuration";
	64
	65	static struct usb_string strings_dev[] = {
276e2e4f SAS	66	[USB_GADGET_MANUFACTURER_IDX].s = manufacturer_nokia,
	67	[USB_GADGET_PRODUCT_IDX].s = NOKIA_LONG_NAME,
	68	[USB_GADGET_SERIAL_IDX].s = "",
f358f5b4 FB	69	[STRING_DESCRIPTION_IDX].s = description_nokia,
	70	{ } /* end of list */
	71	};
	72
	73	static struct usb_gadget_strings stringtab_dev = {
	74	.language = 0x0409, /* en-us */
	75	.strings = strings_dev,
	76	};
	77
	78	static struct usb_gadget_strings *dev_strings[] = {
	79	&stringtab_dev,
	80	NULL,
	81	};
	82
	83	static struct usb_device_descriptor device_desc = {
	84	.bLength = USB_DT_DEVICE_SIZE,
	85	.bDescriptorType = USB_DT_DEVICE,
	86	.bcdUSB = __constant_cpu_to_le16(0x0200),
	87	.bDeviceClass = USB_CLASS_COMM,
	88	.idVendor = __constant_cpu_to_le16(NOKIA_VENDOR_ID),
	89	.idProduct = __constant_cpu_to_le16(NOKIA_PRODUCT_ID),
	90	/* .iManufacturer = DYNAMIC */
	91	/* .iProduct = DYNAMIC */
	92	.bNumConfigurations = 1,
	93	};
	94
	95	/-------------------------------------------------------------------------/
	96
	97	/* Module */
	98	MODULE_DESCRIPTION("Nokia composite gadget driver for N900");
	99	MODULE_AUTHOR("Felipe Balbi");
	100	MODULE_LICENSE("GPL");
	101
	102	/-------------------------------------------------------------------------/
	103
	104	static u8 hostaddr[ETH_ALEN];
	105
	106	static int __init nokia_bind_config(struct usb_configuration *c)
	107	{
	108	int status = 0;
	109
	110	status = phonet_bind_config(c);
	111	if (status)
	112	printk(KERN_DEBUG "could not bind phonet config\n");
	113
	114	status = obex_bind_config(c, 0);
	115	if (status)
	116	printk(KERN_DEBUG "could not bind obex config %d\n", 0);
	117
	118	status = obex_bind_config(c, 1);
	119	if (status)
	120	printk(KERN_DEBUG "could not bind obex config %d\n", 0);
	121
	122	status = acm_bind_config(c, 2);
	123	if (status)
	124	printk(KERN_DEBUG "could not bind acm config\n");
	125
	126	status = ecm_bind_config(c, hostaddr);
	127	if (status)
	128	printk(KERN_DEBUG "could not bind ecm config\n");
	129
	130	return status;
	131	}
	132
133	static struct usb_configuration nokia_config_500ma_driver = {
134	.label = "Bus Powered",
f358f5b4 FB	135	.bConfigurationValue = 1,
	136	/* .iConfiguration = DYNAMIC */
	137	.bmAttributes = USB_CONFIG_ATT_ONE,
	138	.bMaxPower = 250, /* 500mA */
	139	};
	140
	141	static struct usb_configuration nokia_config_100ma_driver = {
	142	.label = "Self Powered",
f358f5b4 FB	143	.bConfigurationValue = 2,
	144	/* .iConfiguration = DYNAMIC */
	145	.bmAttributes = USB_CONFIG_ATT_ONE \| USB_CONFIG_ATT_SELFPOWER,
	146	.bMaxPower = 50, /* 100 mA */
	147	};
	148
	149	static int __init nokia_bind(struct usb_composite_dev *cdev)
	150	{
	151	int gcnum;
	152	struct usb_gadget *gadget = cdev->gadget;
	153	int status;
	154
	155	status = gphonet_setup(cdev->gadget);
	156	if (status < 0)
	157	goto err_phonet;
	158
	159	status = gserial_setup(cdev->gadget, 3);
	160	if (status < 0)
	161	goto err_serial;
	162
	163	status = gether_setup(cdev->gadget, hostaddr);
	164	if (status < 0)
	165	goto err_ether;
	166
e1f15ccb	167	status = usb_string_ids_tab(cdev, strings_dev);
f358f5b4 FB	168	if (status < 0)
f358f5b4 FB	169	goto err_usb;
276e2e4f SAS	170	device_desc.iManufacturer = strings_dev[USB_GADGET_MANUFACTURER_IDX].id;
276e2e4f SAS	171	device_desc.iProduct = strings_dev[USB_GADGET_PRODUCT_IDX].id;
e1f15ccb	172	status = strings_dev[STRING_DESCRIPTION_IDX].id;
f358f5b4 FB	173	nokia_config_500ma_driver.iConfiguration = status;
	174	nokia_config_100ma_driver.iConfiguration = status;
	175
	176	/* set up other descriptors */
	177	gcnum = usb_gadget_controller_number(gadget);
	178	if (gcnum >= 0)
	179	device_desc.bcdDevice = cpu_to_le16(NOKIA_VERSION_NUM);
	180	else {
	181	/* this should only work with hw that supports altsettings
	182	* and several endpoints, anything else, panic.
	183	*/
	184	pr_err("nokia_bind: controller '%s' not recognized\n",
	185	gadget->name);
	186	goto err_usb;
	187	}
	188
25985edc	189	/* finally register the configuration */
c9bfff9c UKK	190	status = usb_add_config(cdev, &nokia_config_500ma_driver,
c9bfff9c UKK	191	nokia_bind_config);
f358f5b4 FB	192	if (status < 0)
	193	goto err_usb;
	194
c9bfff9c UKK	195	status = usb_add_config(cdev, &nokia_config_100ma_driver,
c9bfff9c UKK	196	nokia_bind_config);
f358f5b4 FB	197	if (status < 0)
	198	goto err_usb;
	199
7d16e8d3	200	usb_composite_overwrite_options(cdev, &coverwrite);
f358f5b4 FB	201	dev_info(&gadget->dev, "%s\n", NOKIA_LONG_NAME);
	202
	203	return 0;
	204
	205	err_usb:
	206	gether_cleanup();
	207	err_ether:
	208	gserial_cleanup();
	209	err_serial:
	210	gphonet_cleanup();
	211	err_phonet:
	212	return status;
	213	}
	214
	215	static int __exit nokia_unbind(struct usb_composite_dev *cdev)
	216	{
	217	gphonet_cleanup();
	218	gserial_cleanup();
	219	gether_cleanup();
	220
	221	return 0;
	222	}
	223
c2ec75c2	224	static __refdata struct usb_composite_driver nokia_driver = {
f358f5b4 FB	225	.name = "g_nokia",
	226	.dev = &device_desc,
	227	.strings = dev_strings,
35a0e0bf	228	.max_speed = USB_SPEED_HIGH,
03e42bd5	229	.bind = nokia_bind,
f358f5b4 FB	230	.unbind = __exit_p(nokia_unbind),
	231	};
	232
	233	static int __init nokia_init(void)
	234	{
03e42bd5	235	return usb_composite_probe(&nokia_driver);
f358f5b4 FB	236	}
	237	module_init(nokia_init);
	238
	239	static void __exit nokia_cleanup(void)
	240	{
	241	usb_composite_unregister(&nokia_driver);
	242	}
	243	module_exit(nokia_cleanup);
	244