// SPDX-License-Identifier: GPL-2.0/* * 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) * * See Documentation/usb/usb-serial.rst 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/module.h>#include <linux/spinlock.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,					struct usb_serial_endpoints *epds);static int  clie_5_calc_num_ports(struct usb_serial *serial,					struct usb_serial_endpoints *epds);static void visor_read_int_callback(struct urb *urb);static int  clie_3_5_startup(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 = {		.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,	.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 = {		.name =		"clie_5",	},	.description =		"Sony Clie 5.0",	.id_table =		clie_id_5_table,	.num_ports =		2,	.num_bulk_out =		2,	.bulk_out_size =	256,	.open =			visor_open,	.close =		visor_close,	.throttle =		usb_serial_generic_throttle,	.unthrottle =		usb_serial_generic_unthrottle,	.probe =		visor_probe,	.calc_num_ports =	clie_5_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 = {		.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)		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)) {		dev_err(dev, "Invalid connection information received from device\n");		retval = -ENODEV;		goto exit;	} 	connection_info = (struct visor_connection_info *)transfer_buffer; 	num_ports = le16_to_cpu(connection_info->num_ports); 	/* 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;	} 	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);	}	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)		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,					struct usb_serial_endpoints *epds){	unsigned int vid = le16_to_cpu(serial->dev->descriptor.idVendor);	int num_ports = (int)(long)(usb_get_serial_data(serial)); 	if (num_ports)		usb_set_serial_data(serial, NULL); 	/*	 * Only swap the bulk endpoints for the Handspring devices with	 * interrupt in endpoints, which for now are the Treo devices.	 */	if (!(vid == HANDSPRING_VENDOR_ID || vid == KYOCERA_VENDOR_ID) ||			epds->num_interrupt_in == 0)		goto out; 	if (epds->num_bulk_in < 2 || epds->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.	 */	swap(epds->bulk_in[0], epds->bulk_in[1]);	swap(epds->interrupt_in[0], epds->interrupt_in[1]);out:	return num_ports;} static int clie_5_calc_num_ports(struct usb_serial *serial,					struct usb_serial_endpoints *epds){	/*	 * TH55 registers 2 ports.	 * Communication in from the UX50/TH55 uses the first bulk-in

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