cregit-Linux how code gets into the kernel

Release 4.9 drivers/usb/serial/visor.c

Directory: drivers/usb/serial
/*
 * USB HandSpring Visor, Palm m50x, and Sony Clie driver
 * (supports all of the Palm OS USB devices)
 *
 *      Copyright (C) 1999 - 2004
 *          Greg Kroah-Hartman (greg@kroah.com)
 *
 *      This program is free software; you can redistribute it and/or
 *      modify it under the terms of the GNU General Public License version
 *      2 as published by the Free Software Foundation.
 *
 * See Documentation/usb/usb-serial.txt for more information on using this
 * driver
 *
 */

#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/tty.h>
#include <linux/tty_driver.h>
#include <linux/tty_flip.h>
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/spinlock.h>
#include <linux/uaccess.h>
#include <linux/usb.h>
#include <linux/usb/serial.h>
#include <linux/usb/cdc.h>
#include "visor.h"

/*
 * Version Information
 */

#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>"

#define DRIVER_DESC "USB HandSpring Visor / Palm OS driver"

/* function prototypes for a handspring visor */
static int  visor_open(struct tty_struct *tty, struct usb_serial_port *port);
static void visor_close(struct usb_serial_port *port);
static int  visor_probe(struct usb_serial *serial,
					const struct usb_device_id *id);
static int  visor_calc_num_ports(struct usb_serial *serial);
static void visor_read_int_callback(struct urb *urb);
static int  clie_3_5_startup(struct usb_serial *serial);
static int  treo_attach(struct usb_serial *serial);
static int clie_5_attach(struct usb_serial *serial);
static int palm_os_3_probe(struct usb_serial *serial,
					const struct usb_device_id *id);
static int palm_os_4_probe(struct usb_serial *serial,
					const struct usb_device_id *id);


static const struct usb_device_id id_table[] = {
	{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID),
		.driver_info = (kernel_ulong_t)&palm_os_3_probe },
	{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(ACER_VENDOR_ID, ACER_S10_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE_INTERFACE_CLASS(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID, 0xff),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ }					/* Terminating entry */
};


static const struct usb_device_id clie_id_5_table[] = {
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID),
		.driver_info = (kernel_ulong_t)&palm_os_4_probe },
	{ }					/* Terminating entry */
};


static const struct usb_device_id clie_id_3_5_table[] = {
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
	{ }					/* Terminating entry */
};


static const struct usb_device_id id_table_combined[] = {
	{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_VISOR_ID) },
	{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO_ID) },
	{ USB_DEVICE(HANDSPRING_VENDOR_ID, HANDSPRING_TREO600_ID) },
	{ USB_DEVICE(GSPDA_VENDOR_ID, GSPDA_XPLORE_M68_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M500_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M505_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M515_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_I705_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M100_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M125_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_M130_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_T_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_TREO_650) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_TUNGSTEN_Z_ID) },
	{ USB_DEVICE(PALM_VENDOR_ID, PALM_ZIRE_ID) },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_0_ID) },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_S360_ID) },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_4_1_ID) },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NX60_ID) },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_NZ90V_ID) },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_UX50_ID) },
	{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_TJ25_ID) },
	{ USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID) },
	{ USB_DEVICE(SAMSUNG_VENDOR_ID, SAMSUNG_SPH_I500_ID) },
	{ USB_DEVICE(TAPWAVE_VENDOR_ID, TAPWAVE_ZODIAC_ID) },
	{ USB_DEVICE(GARMIN_VENDOR_ID, GARMIN_IQUE_3600_ID) },
	{ USB_DEVICE(ACEECA_VENDOR_ID, ACEECA_MEZ1000_ID) },
	{ USB_DEVICE(KYOCERA_VENDOR_ID, KYOCERA_7135_ID) },
	{ USB_DEVICE(FOSSIL_VENDOR_ID, FOSSIL_ABACUS_ID) },
	{ }					/* Terminating entry */
};

MODULE_DEVICE_TABLE(usb, id_table_combined);

/* All of the device info needed for the Handspring Visor,
   and Palm 4.0 devices */

static struct usb_serial_driver handspring_device = {
	.driver = {
		.owner =	THIS_MODULE,
		.name =		"visor",
        },
	.description =		"Handspring Visor / Palm OS",
	.id_table =		id_table,
	.num_ports =		2,
	.bulk_out_size =	256,
	.open =			visor_open,
	.close =		visor_close,
	.throttle =		usb_serial_generic_throttle,
	.unthrottle =		usb_serial_generic_unthrottle,
	.attach =		treo_attach,
	.probe =		visor_probe,
	.calc_num_ports =	visor_calc_num_ports,
	.read_int_callback =	visor_read_int_callback,
};

/* All of the device info needed for the Clie UX50, TH55 Palm 5.0 devices */

static struct usb_serial_driver clie_5_device = {
	.driver = {
		.owner =	THIS_MODULE,
		.name =		"clie_5",
        },
	.description =		"Sony Clie 5.0",
	.id_table =		clie_id_5_table,
	.num_ports =		2,
	.bulk_out_size =	256,
	.open =			visor_open,
	.close =		visor_close,
	.throttle =		usb_serial_generic_throttle,
	.unthrottle =		usb_serial_generic_unthrottle,
	.attach =		clie_5_attach,
	.probe =		visor_probe,
	.calc_num_ports =	visor_calc_num_ports,
	.read_int_callback =	visor_read_int_callback,
};

/* device info for the Sony Clie OS version 3.5 */

static struct usb_serial_driver clie_3_5_device = {
	.driver = {
		.owner =	THIS_MODULE,
		.name =		"clie_3.5",
        },
	.description =		"Sony Clie 3.5",
	.id_table =		clie_id_3_5_table,
	.num_ports =		1,
	.bulk_out_size =	256,
	.open =			visor_open,
	.close =		visor_close,
	.throttle =		usb_serial_generic_throttle,
	.unthrottle =		usb_serial_generic_unthrottle,
	.attach =		clie_3_5_startup,
};


static struct usb_serial_driver * const serial_drivers[] = {
	&handspring_device, &clie_5_device, &clie_3_5_device, NULL
};

/******************************************************************************
 * Handspring Visor specific driver functions
 ******************************************************************************/



static int visor_open(struct tty_struct *tty, struct usb_serial_port *port)
{
	int result = 0;

	if (!port->read_urb) {
		/* this is needed for some brain dead Sony devices */
		dev_err(&port->dev, "Device lied about number of ports, please use a lower one.\n");
		return -ENODEV;
	}

	/* Start reading from the device */
	result = usb_serial_generic_open(tty, port);
	if (result)
		goto exit;

	if (port->interrupt_in_urb) {
		dev_dbg(&port->dev, "adding interrupt input for treo\n");
		result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
		if (result)
			dev_err(&port->dev,
			    "%s - failed submitting interrupt urb, error %d\n",
							__func__, result);
	}
exit:
	return result;
}



Contributors
PersonTokensPropCommitsCommitProp
pre-gitpre-git3732.46%212.50%


greg kroah-hartmangreg kroah-hartman2925.44%956.25%


johan hovoldjohan hovold2421.05%16.25%


linus torvaldslinus torvalds1815.79%212.50%


alan coxalan cox54.39%16.25%


harvey harrisonharvey harrison10.88%16.25%


Total114100.00%16100.00%






static void visor_close(struct usb_serial_port *port)
{
	unsigned char *transfer_buffer;

	usb_serial_generic_close(port);
	usb_kill_urb(port->interrupt_in_urb);

	transfer_buffer = kmalloc(0x12, GFP_KERNEL);
	if (!transfer_buffer)
		return;
	usb_control_msg(port->serial->dev,
					 usb_rcvctrlpipe(port->serial->dev, 0),
					 VISOR_CLOSE_NOTIFICATION, 0xc2,
					 0x0000, 0x0000,
					 transfer_buffer, 0x12, 300);
	kfree(transfer_buffer);
}


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pre-gitpre-git6478.05%337.50%


greg kroah-hartmangreg kroah-hartman1518.29%337.50%


johan hovoldjohan hovold33.66%225.00%


Total82100.00%8100.00%






static void visor_read_int_callback(struct urb *urb)
{
	struct usb_serial_port *port = urb->context;
	int status = urb->status;
	int result;

	switch (status) {
	case 0:
		/* success */
		break;
	case -ECONNRESET:
	case -ENOENT:
	case -ESHUTDOWN:
		/* this urb is terminated, clean up */
		dev_dbg(&port->dev, "%s - urb shutting down with status: %d\n",
			__func__, status);
		return;
	default:
		dev_dbg(&port->dev, "%s - nonzero urb status received: %d\n",
			__func__, status);
		goto exit;
	}

	/*
         * This information is still unknown what it can be used for.
         * If anyone has an idea, please let the author know...
         *
         * Rumor has it this endpoint is used to notify when data
         * is ready to be read from the bulk ones.
         */
	usb_serial_debug_data(&port->dev, __func__, urb->actual_length,
			      urb->transfer_buffer);

exit:
	result = usb_submit_urb(urb, GFP_ATOMIC);
	if (result)
		dev_err(&urb->dev->dev,
				"%s - Error %d submitting interrupt urb\n",
							__func__, result);
}


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johan hovoldjohan hovold6648.18%16.25%


pre-gitpre-git3525.55%425.00%


greg kroah-hartmangreg kroah-hartman3424.82%956.25%


oliver neukumoliver neukum10.73%16.25%


harvey harrisonharvey harrison10.73%16.25%


Total137100.00%16100.00%






static int palm_os_3_probe(struct usb_serial *serial,
						const struct usb_device_id *id)
{
	struct device *dev = &serial->dev->dev;
	struct visor_connection_info *connection_info;
	unsigned char *transfer_buffer;
	char *string;
	int retval = 0;
	int i;
	int num_ports = 0;

	transfer_buffer = kmalloc(sizeof(*connection_info), GFP_KERNEL);
	if (!transfer_buffer)
		return -ENOMEM;

	/* send a get connection info request */
	retval = usb_control_msg(serial->dev,
				  usb_rcvctrlpipe(serial->dev, 0),
				  VISOR_GET_CONNECTION_INFORMATION,
				  0xc2, 0x0000, 0x0000, transfer_buffer,
				  sizeof(*connection_info), 300);
	if (retval < 0) {
		dev_err(dev, "%s - error %d getting connection information\n",
			__func__, retval);
		goto exit;
	}

	if (retval == sizeof(*connection_info)) {
			connection_info = (struct visor_connection_info *)
							transfer_buffer;

		num_ports = le16_to_cpu(connection_info->num_ports);
		for (i = 0; i < num_ports; ++i) {
			switch (
			   connection_info->connections[i].port_function_id) {
			case VISOR_FUNCTION_GENERIC:
				string = "Generic";
				break;
			case VISOR_FUNCTION_DEBUGGER:
				string = "Debugger";
				break;
			case VISOR_FUNCTION_HOTSYNC:
				string = "HotSync";
				break;
			case VISOR_FUNCTION_CONSOLE:
				string = "Console";
				break;
			case VISOR_FUNCTION_REMOTE_FILE_SYS:
				string = "Remote File System";
				break;
			default:
				string = "unknown";
				break;
			}
			dev_info(dev, "%s: port %d, is for %s use\n",
				serial->type->description,
				connection_info->connections[i].port, string);
		}
	}
	/*
        * Handle devices that report invalid stuff here.
        */
	if (num_ports == 0 || num_ports > 2) {
		dev_warn(dev, "%s: No valid connect info available\n",
			serial->type->description);
		num_ports = 2;
	}

	dev_info(dev, "%s: Number of ports: %d\n", serial->type->description,
		num_ports);

	/*
         * save off our num_ports info so that we can use it in the
         * calc_num_ports callback
         */
	usb_set_serial_data(serial, (void *)(long)num_ports);

	/* ask for the number of bytes available, but ignore the
           response as it is broken */
	retval = usb_control_msg(serial->dev,
				  usb_rcvctrlpipe(serial->dev, 0),
				  VISOR_REQUEST_BYTES_AVAILABLE,
				  0xc2, 0x0000, 0x0005, transfer_buffer,
				  0x02, 300);
	if (retval < 0)
		dev_err(dev, "%s - error %d getting bytes available request\n",
			__func__, retval);
	retval = 0;

exit:
	kfree(transfer_buffer);

	return retval;
}


Contributors
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pre-gitpre-git16843.19%17.14%


greg kroah-hartmangreg kroah-hartman12131.11%857.14%


joe nardellijoe nardelli5714.65%17.14%


linus torvaldslinus torvalds379.51%17.14%


david s. millerdavid s. miller30.77%17.14%


harvey harrisonharvey harrison20.51%17.14%


alan coxalan cox10.26%17.14%


Total389100.00%14100.00%






static int palm_os_4_probe(struct usb_serial *serial,
						const struct usb_device_id *id)
{
	struct device *dev = &serial->dev->dev;
	struct palm_ext_connection_info *connection_info;
	unsigned char *transfer_buffer;
	int retval;

	transfer_buffer =  kmalloc(sizeof(*connection_info), GFP_KERNEL);
	if (!transfer_buffer)
		return -ENOMEM;

	retval = usb_control_msg(serial->dev,
				  usb_rcvctrlpipe(serial->dev, 0),
				  PALM_GET_EXT_CONNECTION_INFORMATION,
				  0xc2, 0x0000, 0x0000, transfer_buffer,
				  sizeof(*connection_info), 300);
	if (retval < 0)
		dev_err(dev, "%s - error %d getting connection info\n",
			__func__, retval);
	else
		usb_serial_debug_data(dev, __func__, retval, transfer_buffer);

	kfree(transfer_buffer);
	return 0;
}



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greg kroah-hartmangreg kroah-hartman8461.31%450.00%


linus torvaldslinus torvalds4935.77%112.50%


harvey harrisonharvey harrison21.46%112.50%


pre-gitpre-git10.73%112.50%


scott cytackiscott cytacki10.73%112.50%


Total137100.00%8100.00%






static int visor_probe(struct usb_serial *serial,
					const struct usb_device_id *id)
{
	int retval = 0;
	int (*startup)(struct usb_serial *serial,
					const struct usb_device_id *id);

	/*
         * some Samsung Android phones in modem mode have the same ID
         * as SPH-I500, but they are ACM devices, so dont bind to them
         */
	if (id->idVendor == SAMSUNG_VENDOR_ID &&
		id->idProduct == SAMSUNG_SPH_I500_ID &&
		serial->dev->descriptor.bDeviceClass == USB_CLASS_COMM &&
		serial->dev->descriptor.bDeviceSubClass ==
			USB_CDC_SUBCLASS_ACM)
		return -ENODEV;

	if (serial->dev->actconfig->desc.bConfigurationValue != 1) {
		dev_err(&serial->dev->dev, "active config #%d != 1 ??\n",
			serial->dev->actconfig->desc.bConfigurationValue);
		return -ENODEV;
	}

	if (id->driver_info) {
		startup = (void *)id->driver_info;
		retval = startup(serial, id);
	}

	return retval;
}


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greg kroah-hartmangreg kroah-hartman6744.37%350.00%


maciej szmigieromaciej szmigiero3925.83%116.67%


david brownelldavid brownell3321.85%116.67%


pre-gitpre-git127.95%116.67%


Total151100.00%6100.00%






static int visor_calc_num_ports(struct usb_serial *serial)
{
	int num_ports = (int)(long)(usb_get_serial_data(serial));

	if (num_ports)
		usb_set_serial_data(serial, NULL);

	return num_ports;
}


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greg kroah-hartmangreg kroah-hartman41100.00%2100.00%


Total41100.00%2100.00%






static int clie_3_5_startup(struct usb_serial *serial)
{
	struct device *dev = &serial->dev->dev;
	int result;
	u8 *data;

	data = kmalloc(1, GFP_KERNEL);
	if (!data)
		return -ENOMEM;

	/*
         * Note that PEG-300 series devices expect the following two calls.
         */

	/* get the config number */
	result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
				  USB_REQ_GET_CONFIGURATION, USB_DIR_IN,
				  0, 0, data, 1, 3000);
	if (result < 0) {
		dev_err(dev, "%s: get config number failed: %d\n",
							__func__, result);
		goto out;
	}
	if (result != 1) {
		dev_err(dev, "%s: get config number bad return length: %d\n",
							__func__, result);
		result = -EIO;
		goto out;
	}

	/* get the interface number */
	result = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
				  USB_REQ_GET_INTERFACE,
				  USB_DIR_IN | USB_RECIP_INTERFACE,
				  0, 0, data, 1, 3000);
	if (result < 0) {
		dev_err(dev, "%s: get interface number failed: %d\n",
							__func__, result);
		goto out;
	}
	if (result != 1) {
		dev_err(dev,
			"%s: get interface number bad return length: %d\n",
							__func__, result);
		result = -EIO;
		goto out;
	}

	result = 0;
out:
	kfree(data);

	return result;
}


Contributors
PersonTokensPropCommitsCommitProp
linus torvaldslinus torvalds14061.14%112.50%


johan hovoldjohan hovold5021.83%225.00%


greg kroah-hartmangreg kroah-hartman3314.41%337.50%


harvey harrisonharvey harrison41.75%112.50%


nishanth aravamudannishanth aravamudan20.87%112.50%


Total229100.00%8100.00%






static int treo_attach(struct usb_serial *serial)
{
	struct usb_serial_port *swap_port;

	/* Only do this endpoint hack for the Handspring devices with
         * interrupt in endpoints, which for now are the Treo devices. */
	if (!((le16_to_cpu(serial->dev->descriptor.idVendor)
						== HANDSPRING_VENDOR_ID) ||
		(le16_to_cpu(serial->dev->descriptor.idVendor)
						== KYOCERA_VENDOR_ID)) ||
		(serial->num_interrupt_in == 0))
		return 0;

	if (serial->num_bulk_in < 2 || serial->num_interrupt_in < 2) {
		dev_err(&serial->interface->dev, "missing endpoints\n");
		return -ENODEV;
	}

	/*
        * It appears that Treos and Kyoceras want to use the
        * 1st bulk in endpoint to communicate with the 2nd bulk out endpoint,
        * so let's swap the 1st and 2nd bulk in and interrupt endpoints.
        * Note that swapping the bulk out endpoints would break lots of
        * apps that want to communicate on the second port.
        */

#define COPY_PORT(dest, src)						\
	do { \
                int i;                                                  \
                                                                        \
                for (i = 0; i < ARRAY_SIZE(src->read_urbs); ++i) {      \
                        dest->read_urbs[i] = src->read_urbs[i];         \
                        dest->read_urbs[i]->context = dest;             \
                        dest->bulk_in_buffers[i] = src->bulk_in_buffers[i]; \
                }                                                       \
                dest->read_urb = src->read_urb;                         \
                dest->bulk_in_endpointAddress = src->bulk_in_endpointAddress;\
                dest->bulk_in_buffer = src->bulk_in_buffer;             \
                dest->bulk_in_size = src->bulk_in_size;                 \
                dest->interrupt_in_urb = src->interrupt_in_urb;         \
                dest->interrupt_in_urb->context = dest;                 \
                dest->interrupt_in_endpointAddress = \
                                        src->interrupt_in_endpointAddress;\
                dest->interrupt_in_buffer = src->interrupt_in_buffer;   \
        } while (0);

	swap_port = kmalloc(sizeof(*swap_port), GFP_KERNEL);
	if (!swap_port)
		return -ENOMEM;
	COPY_PORT(swap_port, serial->port[0]);
	COPY_PORT(serial->port[0], serial->port[1]);
	COPY_PORT(serial->port[1], swap_port);
	kfree(swap_port);

	return 0;
}


Contributors
PersonTokensPropCommitsCommitProp
greg kroah-hartmangreg kroah-hartman7341.24%225.00%


joe nardellijoe nardelli5028.25%112.50%


johan hovoldjohan hovold3720.90%337.50%


scott cytackiscott cytacki169.04%112.50%


alan coxalan cox10.56%112.50%


Total177100.00%8100.00%






static int clie_5_attach(struct usb_serial *serial)
{
	struct usb_serial_port *port;
	unsigned int pipe;
	int j;

	/* TH55 registers 2 ports.
           Communication in from the UX50/TH55 uses bulk_in_endpointAddress
           from port 0. Communication out to the UX50/TH55 uses
           bulk_out_endpointAddress from port 1

           Lets do a quick and dirty mapping
         */

	/* some sanity check */
	if (serial->num_bulk_out < 2) {
		dev_err(&serial->interface->dev, "missing bulk out endpoints\n");
		return -ENODEV;
	}

	/* port 0 now uses the modified endpoint Address */
	port = serial->port[0];
	port->bulk_out_endpointAddress =
				serial->port[1]->bulk_out_endpointAddress;

	pipe = usb_sndbulkpipe(serial->dev, port->bulk_out_endpointAddress);
	for (j = 0; j < ARRAY_SIZE(port->write_urbs); ++j)
		port->write_urbs[j]->pipe = pipe;

	return 0;
}


Contributors
PersonTokensPropCommitsCommitProp
johan hovoldjohan hovold5949.58%233.33%


martin lubichmartin lubich4134.45%116.67%


vladis dronovvladis dronov1613.45%116.67%


pete zaitcevpete zaitcev21.68%116.67%


alan coxalan cox10.84%116.67%


Total119100.00%6100.00%



module_usb_serial_driver(serial_drivers, id_table_combined);


MODULE_AUTHOR(DRIVER_AUTHOR);

MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");

Overall Contributors
PersonTokensPropCommitsCommitProp
greg kroah-hartmangreg kroah-hartman117840.54%5249.52%


pre-gitpre-git42714.69%1110.48%


linus torvaldslinus torvalds41514.28%1211.43%


johan hovoldjohan hovold2649.08%87.62%


martin lubichmartin lubich1424.89%10.95%


joe nardellijoe nardelli1073.68%10.95%


scott cytackiscott cytacki441.51%10.95%


maciej szmigieromaciej szmigiero421.45%10.95%


rusty russellrusty russell391.34%10.95%


david brownelldavid brownell331.14%10.95%


larry battrawlarry battraw270.93%10.95%


hendrik schweppehendrik schweppe270.93%10.95%


dax kelsondax kelson270.93%10.95%


juergen botzjuergen botz250.86%10.95%


alan sternalan stern220.76%10.95%


maximilian attemsmaximilian attems180.62%10.95%


vladis dronovvladis dronov160.55%10.95%


alan coxalan cox160.55%21.90%


erik arnesonerik arneson160.55%10.95%


harvey harrisonharvey harrison100.34%10.95%


david s. millerdavid s. miller30.10%10.95%


jason a. donenfeldjason a. donenfeld30.10%10.95%


nishanth aravamudannishanth aravamudan20.07%10.95%


pete zaitcevpete zaitcev20.07%10.95%


oliver neukumoliver neukum10.03%10.95%


Total2906100.00%105100.00%

  
Directory: drivers/usb/serial