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linux_dsm_epyc7002/drivers/usb/serial/visor.c
Johan Hovold 420021a395 USB: visor: fix initialisation of Treo/Kyocera devices 
Fix regression introduced by commit 214916f2e ("USB: visor: reimplement
using generic framework") which broke initialisation of Treo/Kyocera
devices that re-mapped bulk-in endpoints.

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2013-05-29 10:47:45 +09:00

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/*
* 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/init.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 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(SAMSUNG_VENDOR_ID, SAMSUNG_SCH_I330_ID),
.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 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 struct usb_device_id clie_id_3_5_table [] = {
{ USB_DEVICE(SONY_VENDOR_ID, SONY_CLIE_3_5_ID) },
{ } /* Terminating entry */
};
static 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;
}
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);
}
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);
}
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) {
dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __func__,
sizeof(*connection_info));
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;
}
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) {
dev_err(dev, "%s - kmalloc(%Zd) failed.\n", __func__,
sizeof(*connection_info));
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;
}
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;
}
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;
}
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;
}
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;
/*
* 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;
}
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_ports < 2)
return -1;
/* 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;
}
module_usb_serial_driver(serial_drivers, id_table_combined);
MODULE_AUTHOR(DRIVER_AUTHOR);
MODULE_DESCRIPTION(DRIVER_DESC);
MODULE_LICENSE("GPL");
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