[mirror_ubuntu-bionic-kernel.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 "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);
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"
	42	#include "usbstring.c"
	43	#include "config.c"
	44	#include "epautoconf.c"
	45
	46	#include "u_serial.c"
	47	#include "f_acm.c"
	48	#include "f_ecm.c"
	49	#include "f_obex.c"
	50	#include "f_serial.c"
	51	#include "f_phonet.c"
	52	#include "u_ether.c"
	53
	54	/-------------------------------------------------------------------------/
	55
	56	#define NOKIA_VENDOR_ID 0x0421 /* Nokia */
	57	#define NOKIA_PRODUCT_ID 0x01c8 /* Nokia Gadget */
	58
	59	/* string IDs are assigned dynamically */
	60
	61	#define STRING_MANUFACTURER_IDX 0
	62	#define STRING_PRODUCT_IDX 1
	63	#define STRING_DESCRIPTION_IDX 2
	64
65	static char manufacturer_nokia[] = "Nokia";
66	static const char product_nokia[] = NOKIA_LONG_NAME;
67	static const char description_nokia[] = "PC-Suite Configuration";
68
69	static struct usb_string strings_dev[] = {
70	[STRING_MANUFACTURER_IDX].s = manufacturer_nokia,
71	[STRING_PRODUCT_IDX].s = NOKIA_LONG_NAME,
72	[STRING_DESCRIPTION_IDX].s = description_nokia,
73	{ } /* end of list */
74	};
75
76	static struct usb_gadget_strings stringtab_dev = {
77	.language = 0x0409, /* en-us */
78	.strings = strings_dev,
79	};
80
81	static struct usb_gadget_strings *dev_strings[] = {
82	&stringtab_dev,
83	NULL,
84	};
85
86	static struct usb_device_descriptor device_desc = {
87	.bLength = USB_DT_DEVICE_SIZE,
88	.bDescriptorType = USB_DT_DEVICE,
89	.bcdUSB = __constant_cpu_to_le16(0x0200),
90	.bDeviceClass = USB_CLASS_COMM,
91	.idVendor = __constant_cpu_to_le16(NOKIA_VENDOR_ID),
92	.idProduct = __constant_cpu_to_le16(NOKIA_PRODUCT_ID),
93	/* .iManufacturer = DYNAMIC */
94	/* .iProduct = DYNAMIC */
95	.bNumConfigurations = 1,
96	};
97
98	/-------------------------------------------------------------------------/
99
100	/* Module */
101	MODULE_DESCRIPTION("Nokia composite gadget driver for N900");
102	MODULE_AUTHOR("Felipe Balbi");
103	MODULE_LICENSE("GPL");
104
105	/-------------------------------------------------------------------------/
106
107	static u8 hostaddr[ETH_ALEN];
108
109	static int __init nokia_bind_config(struct usb_configuration *c)
110	{
111	int status = 0;
112
113	status = phonet_bind_config(c);
114	if (status)
115	printk(KERN_DEBUG "could not bind phonet config\n");
116
117	status = obex_bind_config(c, 0);
118	if (status)
119	printk(KERN_DEBUG "could not bind obex config %d\n", 0);
120
121	status = obex_bind_config(c, 1);
122	if (status)
123	printk(KERN_DEBUG "could not bind obex config %d\n", 0);
124
125	status = acm_bind_config(c, 2);
126	if (status)
127	printk(KERN_DEBUG "could not bind acm config\n");
128
129	status = ecm_bind_config(c, hostaddr);
130	if (status)
131	printk(KERN_DEBUG "could not bind ecm config\n");
132
133	return status;
134	}
135
136	static struct usb_configuration nokia_config_500ma_driver = {
137	.label = "Bus Powered",
f358f5b4 FB	138	.bConfigurationValue = 1,
	139	/* .iConfiguration = DYNAMIC */
	140	.bmAttributes = USB_CONFIG_ATT_ONE,
	141	.bMaxPower = 250, /* 500mA */
	142	};
	143
	144	static struct usb_configuration nokia_config_100ma_driver = {
	145	.label = "Self Powered",
f358f5b4 FB	146	.bConfigurationValue = 2,
	147	/* .iConfiguration = DYNAMIC */
	148	.bmAttributes = USB_CONFIG_ATT_ONE \| USB_CONFIG_ATT_SELFPOWER,
	149	.bMaxPower = 50, /* 100 mA */
	150	};
	151
	152	static int __init nokia_bind(struct usb_composite_dev *cdev)
	153	{
	154	int gcnum;
	155	struct usb_gadget *gadget = cdev->gadget;
	156	int status;
	157
	158	status = gphonet_setup(cdev->gadget);
	159	if (status < 0)
	160	goto err_phonet;
	161
	162	status = gserial_setup(cdev->gadget, 3);
	163	if (status < 0)
	164	goto err_serial;
	165
	166	status = gether_setup(cdev->gadget, hostaddr);
	167	if (status < 0)
	168	goto err_ether;
	169
	170	status = usb_string_id(cdev);
	171	if (status < 0)
	172	goto err_usb;
	173	strings_dev[STRING_MANUFACTURER_IDX].id = status;
	174
	175	device_desc.iManufacturer = status;
	176
	177	status = usb_string_id(cdev);
	178	if (status < 0)
	179	goto err_usb;
	180	strings_dev[STRING_PRODUCT_IDX].id = status;
	181
	182	device_desc.iProduct = status;
	183
	184	/* config description */
	185	status = usb_string_id(cdev);
	186	if (status < 0)
	187	goto err_usb;
	188	strings_dev[STRING_DESCRIPTION_IDX].id = status;
	189
	190	nokia_config_500ma_driver.iConfiguration = status;
	191	nokia_config_100ma_driver.iConfiguration = status;
	192
	193	/* set up other descriptors */
	194	gcnum = usb_gadget_controller_number(gadget);
	195	if (gcnum >= 0)
	196	device_desc.bcdDevice = cpu_to_le16(NOKIA_VERSION_NUM);
	197	else {
	198	/* this should only work with hw that supports altsettings
	199	* and several endpoints, anything else, panic.
	200	*/
	201	pr_err("nokia_bind: controller '%s' not recognized\n",
	202	gadget->name);
	203	goto err_usb;
	204	}
	205
25985edc	206	/* finally register the configuration */
c9bfff9c UKK	207	status = usb_add_config(cdev, &nokia_config_500ma_driver,
c9bfff9c UKK	208	nokia_bind_config);
f358f5b4 FB	209	if (status < 0)
	210	goto err_usb;
	211
c9bfff9c UKK	212	status = usb_add_config(cdev, &nokia_config_100ma_driver,
c9bfff9c UKK	213	nokia_bind_config);
f358f5b4 FB	214	if (status < 0)
	215	goto err_usb;
	216
	217	dev_info(&gadget->dev, "%s\n", NOKIA_LONG_NAME);
	218
	219	return 0;
	220
	221	err_usb:
	222	gether_cleanup();
	223	err_ether:
	224	gserial_cleanup();
	225	err_serial:
	226	gphonet_cleanup();
	227	err_phonet:
	228	return status;
	229	}
	230
	231	static int __exit nokia_unbind(struct usb_composite_dev *cdev)
	232	{
	233	gphonet_cleanup();
	234	gserial_cleanup();
	235	gether_cleanup();
	236
	237	return 0;
	238	}
	239
	240	static struct usb_composite_driver nokia_driver = {
	241	.name = "g_nokia",
	242	.dev = &device_desc,
	243	.strings = dev_strings,
35a0e0bf	244	.max_speed = USB_SPEED_HIGH,
f358f5b4 FB	245	.unbind = __exit_p(nokia_unbind),
	246	};
	247
	248	static int __init nokia_init(void)
	249	{
07a18bd7	250	return usb_composite_probe(&nokia_driver, nokia_bind);
f358f5b4 FB	251	}
	252	module_init(nokia_init);
	253
	254	static void __exit nokia_cleanup(void)
	255	{
	256	usb_composite_unregister(&nokia_driver);
	257	}
	258	module_exit(nokia_cleanup);
	259