1 files changed, 279 insertions, 0 deletions
diff --git a/drivers/usb/gadget/nokia.c b/drivers/usb/gadget/nokia.c
new file mode 100644
index 00000000..3b344b41
--- /dev/null
+++ b/drivers/usb/gadget/nokia.c
@@ -0,0 +1,279 @@
+/*
+ * 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.
+ */
+#define USBF_OBEX_INCLUDED
+#include "f_ecm.c"
+#include "f_obex.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),
+	.bcdDevice		= cpu_to_le16(NOKIA_VERSION_NUM),
+	/* .iManufacturer = DYNAMIC */
+	/* .iProduct = DYNAMIC */
+	.bNumConfigurations =	1,
+};
+
+/*-------------------------------------------------------------------------*/
+
+/* Module */
+MODULE_DESCRIPTION("Nokia composite gadget driver for N900");
+MODULE_AUTHOR("Felipe Balbi");
+MODULE_LICENSE("GPL");
+
+/*-------------------------------------------------------------------------*/
+static struct usb_function *f_acm_cfg1;
+static struct usb_function *f_acm_cfg2;
+static u8 hostaddr[ETH_ALEN];
+static struct eth_dev *the_dev;
+
+enum {
+	TTY_PORT_OBEX0,
+	TTY_PORT_OBEX1,
+	TTY_PORTS_MAX,
+};
+
+static unsigned char tty_lines[TTY_PORTS_MAX];
+
+static struct usb_configuration nokia_config_500ma_driver = {
+	.label		= "Bus Powered",
+	.bConfigurationValue = 1,
+	/* .iConfiguration = DYNAMIC */
+	.bmAttributes	= USB_CONFIG_ATT_ONE,
+	.MaxPower	= 500,
+};
+
+static struct usb_configuration nokia_config_100ma_driver = {
+	.label		= "Self Powered",
+	.bConfigurationValue = 2,
+	/* .iConfiguration = DYNAMIC */
+	.bmAttributes	= USB_CONFIG_ATT_ONE | USB_CONFIG_ATT_SELFPOWER,
+	.MaxPower	= 100,
+};
+
+static struct usb_function_instance *fi_acm;
+
+static int __init nokia_bind_config(struct usb_configuration *c)
+{
+	struct usb_function *f_acm;
+	int status = 0;
+
+	status = phonet_bind_config(c);
+	if (status)
+		printk(KERN_DEBUG "could not bind phonet config\n");
+
+	status = obex_bind_config(c, tty_lines[TTY_PORT_OBEX0]);
+	if (status)
+		printk(KERN_DEBUG "could not bind obex config %d\n", 0);
+
+	status = obex_bind_config(c, tty_lines[TTY_PORT_OBEX1]);
+	if (status)
+		printk(KERN_DEBUG "could not bind obex config %d\n", 0);
+
+	f_acm = usb_get_function(fi_acm);
+	if (IS_ERR(f_acm))
+		return PTR_ERR(f_acm);
+
+	status = usb_add_function(c, f_acm);
+	if (status)
+		goto err_conf;
+
+	status = ecm_bind_config(c, hostaddr, the_dev);
+	if (status) {
+		pr_debug("could not bind ecm config %d\n", status);
+		goto err_ecm;
+	}
+	if (c == &nokia_config_500ma_driver)
+		f_acm_cfg1 = f_acm;
+	else
+		f_acm_cfg2 = f_acm;
+
+	return status;
+err_ecm:
+	usb_remove_function(c, f_acm);
+err_conf:
+	usb_put_function(f_acm);
+	return status;
+}
+
+static int __init nokia_bind(struct usb_composite_dev *cdev)
+{
+	struct usb_gadget	*gadget = cdev->gadget;
+	int			status;
+	int			cur_line;
+
+	status = gphonet_setup(cdev->gadget);
+	if (status < 0)
+		goto err_phonet;
+
+	for (cur_line = 0; cur_line < TTY_PORTS_MAX; cur_line++) {
+		status = gserial_alloc_line(&tty_lines[cur_line]);
+		if (status)
+			goto err_ether;
+	}
+
+	the_dev = gether_setup(cdev->gadget, hostaddr);
+	if (IS_ERR(the_dev)) {
+		status = PTR_ERR(the_dev);
+		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;
+
+	if (!gadget_supports_altsettings(gadget))
+		goto err_usb;
+
+	fi_acm = usb_get_function_instance("acm");
+	if (IS_ERR(fi_acm))
+		goto err_usb;
+
+	/* finally register the configuration */
+	status = usb_add_config(cdev, &nokia_config_500ma_driver,
+			nokia_bind_config);
+	if (status < 0)
+		goto err_acm_inst;
+
+	status = usb_add_config(cdev, &nokia_config_100ma_driver,
+			nokia_bind_config);
+	if (status < 0)
+		goto err_put_cfg1;
+
+	usb_composite_overwrite_options(cdev, &coverwrite);
+	dev_info(&gadget->dev, "%s\n", NOKIA_LONG_NAME);
+
+	return 0;
+
+err_put_cfg1:
+	usb_put_function(f_acm_cfg1);
+err_acm_inst:
+	usb_put_function_instance(fi_acm);
+err_usb:
+	gether_cleanup(the_dev);
+err_ether:
+	cur_line--;
+	while (cur_line >= 0)
+		gserial_free_line(tty_lines[cur_line--]);
+
+	gphonet_cleanup();
+err_phonet:
+	return status;
+}
+
+static int __exit nokia_unbind(struct usb_composite_dev *cdev)
+{
+	int i;
+
+	usb_put_function(f_acm_cfg1);
+	usb_put_function(f_acm_cfg2);
+	usb_put_function_instance(fi_acm);
+	gphonet_cleanup();
+
+	for (i = 0; i < TTY_PORTS_MAX; i++)
+		gserial_free_line(tty_lines[i]);
+
+	gether_cleanup(the_dev);
+
+	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);