drivers/media/dvb/siano/smsusb.c - kernel/msm-4.9 - Gitiles

 /*
  *  Driver for the Siano SMS10xx USB dongle
  *
  *  author: Anatoly Greenblat
  *
  *  Copyright (c), 2005-2008 Siano Mobile Silicon, Inc.
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License version 3 as
  *  published by the Free Software Foundation;
  *
  *  Software distributed under the License is distributed on an "AS IS"
  *  basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
  *
  *  See the GNU General Public License for more details.
  *
  *  You should have received a copy of the GNU General Public License
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */

 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/usb.h>
 #include <linux/firmware.h>

 #include "smscoreapi.h"

 #define USB1_BUFFER_SIZE		0x1000
 #define USB2_BUFFER_SIZE		0x4000

 #define MAX_BUFFERS		50
 #define MAX_URBS		10

 typedef struct _smsusb_device smsusb_device_t;

 typedef struct _smsusb_urb
 {
 	smscore_buffer_t *cb;
 	smsusb_device_t	*dev;

 	struct urb		urb;
 } smsusb_urb_t;

 typedef struct _smsusb_device
 {
 	struct usb_device *udev;
 	smscore_device_t *coredev;

 	smsusb_urb_t 	surbs[MAX_URBS];

 	int				response_alignment;
 	int				buffer_size;
 } *psmsusb_device_t;

 int smsusb_submit_urb(smsusb_device_t *dev, smsusb_urb_t *surb);

 void smsusb_onresponse(struct urb *urb)
 {
 	smsusb_urb_t *surb = (smsusb_urb_t *) urb->context;
 	smsusb_device_t *dev = surb->dev;

 	if (urb->status < 0)
 	{
 		printk(KERN_INFO "%s error, urb status %d, %d bytes\n", __func__, urb->status, urb->actual_length);
 		return;
 	}

 	if (urb->actual_length > 0)
 	{
 		SmsMsgHdr_ST *phdr = (SmsMsgHdr_ST *) surb->cb->p;

 		if (urb->actual_length >= phdr->msgLength)
 		{
 			surb->cb->size = phdr->msgLength;

 			if (dev->response_alignment && (phdr->msgFlags & MSG_HDR_FLAG_SPLIT_MSG))
 			{
 				surb->cb->offset = dev->response_alignment + ((phdr->msgFlags >> 8) & 3);

 				// sanity check
 				if (((int) phdr->msgLength + surb->cb->offset) > urb->actual_length)
 				{
 					printk("%s: invalid response msglen %d offset %d size %d\n", __func__, phdr->msgLength, surb->cb->offset, urb->actual_length);
 					goto exit_and_resubmit;
 				}

 				// move buffer pointer and copy header to its new location
 				memcpy((char *) phdr + surb->cb->offset,
 				       phdr, sizeof(SmsMsgHdr_ST));
 			}
 			else
 				surb->cb->offset = 0;

 			smscore_onresponse(dev->coredev, surb->cb);
 			surb->cb = NULL;
 		}
 		else
 		{
 			printk("%s invalid response msglen %d actual %d\n", __func__, phdr->msgLength, urb->actual_length);
 		}
 	}

 exit_and_resubmit:
 	smsusb_submit_urb(dev, surb);
 }

 int smsusb_submit_urb(smsusb_device_t *dev, smsusb_urb_t *surb)
 {
 	if (!surb->cb)
 	{
 		surb->cb = smscore_getbuffer(dev->coredev);
 		if (!surb->cb)
 		{
 			printk(KERN_INFO "%s smscore_getbuffer(...) returned NULL\n", __func__);
 			return -ENOMEM;
 		}
 	}

 	usb_fill_bulk_urb(
 		&surb->urb,
 		dev->udev,
 		usb_rcvbulkpipe(dev->udev, 0x81),
 		surb->cb->p,
 		dev->buffer_size,
 		smsusb_onresponse,
 		surb
 	);
 	surb->urb.transfer_dma = surb->cb->phys;
 	surb->urb.transfer_flags |= URB_NO_TRANSFER_DMA_MAP;

 	return usb_submit_urb(&surb->urb, GFP_ATOMIC);
 }

 void smsusb_stop_streaming(smsusb_device_t *dev)
 {
 	int i;

 	for (i = 0; i < MAX_URBS; i ++)
 	{
 		usb_kill_urb(&dev->surbs[i].urb);

 		if (dev->surbs[i].cb)
 		{
 			smscore_putbuffer(dev->coredev, dev->surbs[i].cb);
 			dev->surbs[i].cb = NULL;
 		}
 	}
 }

 int smsusb_start_streaming(smsusb_device_t *dev)
 {
 	int i, rc;

 	for (i = 0; i < MAX_URBS; i ++)
 	{
 		rc = smsusb_submit_urb(dev, &dev->surbs[i]);
 		if (rc < 0)
 		{
 			printk(KERN_INFO "%s smsusb_submit_urb(...) failed\n", __func__);
 			smsusb_stop_streaming(dev);
 			break;
 		}
 	}

 	return rc;
 }

 int smsusb_sendrequest(void *context, void *buffer, size_t size)
 {
 	smsusb_device_t *dev = (smsusb_device_t *) context;
 	int dummy;

 	return usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 2), buffer, size, &dummy, 1000);
 }

 char *smsusb1_fw_lkup[] =
 {
 	"dvbt_stellar_usb.inp",
 	"dvbh_stellar_usb.inp",
 	"tdmb_stellar_usb.inp",
 	"none",
 	"dvbt_bda_stellar_usb.inp",
 };

 int smsusb1_load_firmware(struct usb_device *udev, int id)
 {
 	const struct firmware *fw;
 	u8 *fw_buffer;
 	int rc, dummy;

 	if (id < DEVICE_MODE_DVBT || id > DEVICE_MODE_DVBT_BDA)
 	{
 		printk(KERN_INFO "%s invalid firmware id specified %d\n", __func__, id);
 		return -EINVAL;
 	}

 	rc = request_firmware(&fw, smsusb1_fw_lkup[id], &udev->dev);
 	if (rc < 0)
 	{
 		printk(KERN_INFO "%s failed to open \"%s\" mode %d\n", __func__, smsusb1_fw_lkup[id], id);
 		return rc;
 	}

 	fw_buffer = kmalloc(fw->size, GFP_KERNEL);
 	if (fw_buffer)
 	{
 		memcpy(fw_buffer, fw->data, fw->size);

 		rc = usb_bulk_msg(udev, usb_sndbulkpipe(udev, 2), fw_buffer, fw->size, &dummy, 1000);

 		printk(KERN_INFO "%s: sent %d(%d) bytes, rc %d\n", __func__, fw->size, dummy, rc);

 		kfree(fw_buffer);
 	}
 	else
 	{
 		printk(KERN_INFO "failed to allocate firmware buffer\n");
 		rc = -ENOMEM;
 	}

 	release_firmware(fw);

 	return rc;
 }

 void smsusb1_detectmode(void *context, int *mode)
 {
 	char *product_string = ((smsusb_device_t *) context)->udev->product;

 	*mode = DEVICE_MODE_NONE;

 	if (!product_string)
 	{
 		product_string = "none";
 		printk("%s product string not found\n", __func__);
 	}
 	else
 	{
 		if (strstr(product_string, "DVBH"))
 			*mode = 1;
 		else if (strstr(product_string, "BDA"))
 			*mode = 4;
 		else if (strstr(product_string, "DVBT"))
 			*mode = 0;
 		else if (strstr(product_string, "TDMB"))
 			*mode = 2;
 	}

 	printk("%s: %d \"%s\"\n", __func__, *mode, product_string);
 }

 int smsusb1_setmode(void *context, int mode)
 {
 	SmsMsgHdr_ST Msg = { MSG_SW_RELOAD_REQ, 0, HIF_TASK, sizeof(SmsMsgHdr_ST), 0 };

 	if (mode < DEVICE_MODE_DVBT || mode > DEVICE_MODE_DVBT_BDA)
 	{
 		printk(KERN_INFO "%s invalid firmware id specified %d\n", __func__, mode);
 		return -EINVAL;
 	}

 	return smsusb_sendrequest(context, &Msg, sizeof(Msg));
 }

 void smsusb_term_device(struct usb_interface *intf)
 {
 	smsusb_device_t *dev = (smsusb_device_t *) usb_get_intfdata(intf);

 	if (dev)
 	{
 		smsusb_stop_streaming(dev);

 		// unregister from smscore
 		if (dev->coredev)
 			smscore_unregister_device(dev->coredev);

 		kfree(dev);

 		printk(KERN_INFO "%s device %p destroyed\n", __func__, dev);
 	}

 	usb_set_intfdata(intf, NULL);
 }

 int smsusb_init_device(struct usb_interface *intf)
 {
 	smsdevice_params_t params;
 	smsusb_device_t *dev;
 	int i, rc;

 	// create device object
 	dev = kzalloc(sizeof(smsusb_device_t), GFP_KERNEL);
 	if (!dev)
 	{
 		printk(KERN_INFO "%s kzalloc(sizeof(smsusb_device_t) failed\n", __func__);
 		return -ENOMEM;
 	}

 	memset(&params, 0, sizeof(params));
 	usb_set_intfdata(intf, dev);
 	dev->udev = interface_to_usbdev(intf);

 	switch (dev->udev->descriptor.idProduct) {
 	case 0x100:
 		dev->buffer_size = USB1_BUFFER_SIZE;

 		params.setmode_handler = smsusb1_setmode;
 		params.detectmode_handler = smsusb1_detectmode;
 		params.device_type = SMS_STELLAR;
 		printk(KERN_INFO "%s stellar device found\n", __func__ );
 		break;
 	default:
 		if (dev->udev->descriptor.idProduct == 0x200) {
 			params.device_type = SMS_NOVA_A0;
 			printk(KERN_INFO "%s nova A0 found\n", __FUNCTION__ );
 		} else if (dev->udev->descriptor.idProduct == 0x201) {
 			params.device_type = SMS_NOVA_B0;
 			printk(KERN_INFO "%s nova B0 found\n", __FUNCTION__);
 		} else {
 			params.device_type = SMS_VEGA;
 			printk(KERN_INFO "%s Vega found\n", __FUNCTION__);
 		}

 		dev->buffer_size = USB2_BUFFER_SIZE;
 		dev->response_alignment = dev->udev->ep_in[1]->desc.wMaxPacketSize - sizeof(SmsMsgHdr_ST);

 		params.flags |= SMS_DEVICE_FAMILY2;
 		break;
 	}

 	params.device = &dev->udev->dev;
 	params.buffer_size = dev->buffer_size;
 	params.num_buffers = MAX_BUFFERS;
 	params.sendrequest_handler = smsusb_sendrequest;
 	params.context = dev;
 	snprintf(params.devpath, sizeof(params.devpath), "usb\\%d-%s", dev->udev->bus->busnum, dev->udev->devpath);

 	// register in smscore
 	rc = smscore_register_device(&params, &dev->coredev);
 	if (rc < 0)
 	{
 		printk(KERN_INFO "%s smscore_register_device(...) failed, rc %d\n", __func__, rc);
 		smsusb_term_device(intf);
 		return rc;
 	}

 	// initialize urbs
 	for (i = 0; i < MAX_URBS; i ++)
 	{
 		dev->surbs[i].dev = dev;
 		usb_init_urb(&dev->surbs[i].urb);
 	}

 	printk(KERN_INFO "%s smsusb_start_streaming(...).\n", __func__);
 	rc = smsusb_start_streaming(dev);
 	if (rc < 0)
 	{
 		printk(KERN_INFO "%s smsusb_start_streaming(...) failed\n", __func__);
 		smsusb_term_device(intf);
 		return rc;
 	}

 	rc = smscore_start_device(dev->coredev);
 	if (rc < 0)
 	{
 		printk(KERN_INFO "%s smscore_start_device(...) failed\n", __func__);
 		smsusb_term_device(intf);
 		return rc;
 	}

 	printk(KERN_INFO "%s device %p created\n", __func__, dev);

 	return rc;
 }

 int smsusb_probe(struct usb_interface *intf, const struct usb_device_id *id)
 {
 	struct usb_device *udev = interface_to_usbdev(intf);
 	char devpath[32];
 	int i, rc;

 	rc = usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x81));
 	rc = usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x02));

 	if (intf->num_altsetting > 0)
 	{
 		rc = usb_set_interface(udev, intf->cur_altsetting->desc.bInterfaceNumber, 0);
 		if (rc < 0)
 		{
 			printk(KERN_INFO "%s usb_set_interface failed, rc %d\n", __func__, rc);
 			return rc;
 		}
 	}

 	printk(KERN_INFO "smsusb_probe %d\n", intf->cur_altsetting->desc.bInterfaceNumber);
 	for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i ++)
 		printk(KERN_INFO "endpoint %d %02x %02x %d\n", i, intf->cur_altsetting->endpoint[i].desc.bEndpointAddress, intf->cur_altsetting->endpoint[i].desc.bmAttributes, intf->cur_altsetting->endpoint[i].desc.wMaxPacketSize);

 	if (udev->actconfig->desc.bNumInterfaces == 2 && intf->cur_altsetting->desc.bInterfaceNumber == 0)
 	{
 		printk(KERN_INFO "rom interface 0 is not used\n");
 		return -ENODEV;
 	}

 	if (intf->cur_altsetting->desc.bInterfaceNumber == 1)
 	{
 		snprintf(devpath, sizeof(devpath), "usb\\%d-%s", udev->bus->busnum, udev->devpath);
 		printk(KERN_INFO "stellar device was found.\n");
 		return smsusb1_load_firmware(udev, smscore_registry_getmode(devpath));
 	}

 	rc = smsusb_init_device(intf);
 	printk(KERN_INFO  "%s  rc %d\n", __FUNCTION__, rc);
 	return rc;
 }

 void smsusb_disconnect(struct usb_interface *intf)
 {
 	smsusb_term_device(intf);
 }

 static struct usb_device_id smsusb_id_table [] = {
 	{ USB_DEVICE(0x187F, 0x0010) },
 	{ USB_DEVICE(0x187F, 0x0100) },
 	{ USB_DEVICE(0x187F, 0x0200) },
 	{ }		/* Terminating entry */
 };
 MODULE_DEVICE_TABLE (usb, smsusb_id_table);

 static struct usb_driver smsusb_driver = {
 	.name			= "smsusb",
 	.probe			= smsusb_probe,
 	.disconnect 	= smsusb_disconnect,
 	.id_table		= smsusb_id_table,
 };

 int smsusb_register(void)
 {
 	int rc = usb_register(&smsusb_driver);
 	if (rc)
 		printk(KERN_INFO "usb_register failed. Error number %d\n", rc);

 	printk(KERN_INFO "%s\n", __func__);

 	return rc;
 }

 void smsusb_unregister(void)
 {
 	/* Regular USB Cleanup */
 	usb_deregister(&smsusb_driver);
 	printk(KERN_INFO "%s\n", __func__);
 }
	/*
	* Driver for the Siano SMS10xx USB dongle
	*
	* author: Anatoly Greenblat
	*
	* Copyright (c), 2005-2008 Siano Mobile Silicon, Inc.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License version 3 as
	* published by the Free Software Foundation;
	*
	* Software distributed under the License is distributed on an "AS IS"
	* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.
	*
	* See the GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
	*/

	#include <linux/kernel.h>
	#include <linux/init.h>
	#include <linux/usb.h>
	#include <linux/firmware.h>

	#include "smscoreapi.h"

	#define USB1_BUFFER_SIZE 0x1000
	#define USB2_BUFFER_SIZE 0x4000

	#define MAX_BUFFERS 50
	#define MAX_URBS 10

	typedef struct _smsusb_device smsusb_device_t;

	typedef struct _smsusb_urb
	{
	smscore_buffer_t *cb;
	smsusb_device_t *dev;

	struct urb urb;
	} smsusb_urb_t;

	typedef struct _smsusb_device
	{
	struct usb_device *udev;
	smscore_device_t *coredev;

	smsusb_urb_t surbs[MAX_URBS];

	int response_alignment;
	int buffer_size;
	} *psmsusb_device_t;

	int smsusb_submit_urb(smsusb_device_t dev, smsusb_urb_t surb);

	void smsusb_onresponse(struct urb *urb)
	{
	smsusb_urb_t surb = (smsusb_urb_t ) urb->context;
	smsusb_device_t *dev = surb->dev;

	if (urb->status < 0)
	{
	printk(KERN_INFO "%s error, urb status %d, %d bytes\n", __func__, urb->status, urb->actual_length);
	return;
	}

	if (urb->actual_length > 0)
	{
	SmsMsgHdr_ST phdr = (SmsMsgHdr_ST ) surb->cb->p;

	if (urb->actual_length >= phdr->msgLength)
	{
	surb->cb->size = phdr->msgLength;

	if (dev->response_alignment && (phdr->msgFlags & MSG_HDR_FLAG_SPLIT_MSG))
	{
	surb->cb->offset = dev->response_alignment + ((phdr->msgFlags >> 8) & 3);

	// sanity check
	if (((int) phdr->msgLength + surb->cb->offset) > urb->actual_length)
	{
	printk("%s: invalid response msglen %d offset %d size %d\n", __func__, phdr->msgLength, surb->cb->offset, urb->actual_length);
	goto exit_and_resubmit;
	}

	// move buffer pointer and copy header to its new location
	memcpy((char *) phdr + surb->cb->offset,
	phdr, sizeof(SmsMsgHdr_ST));
	}
	else
	surb->cb->offset = 0;

	smscore_onresponse(dev->coredev, surb->cb);
	surb->cb = NULL;
	}
	else
	{
	printk("%s invalid response msglen %d actual %d\n", __func__, phdr->msgLength, urb->actual_length);
	}
	}

	exit_and_resubmit:
	smsusb_submit_urb(dev, surb);
	}

	int smsusb_submit_urb(smsusb_device_t dev, smsusb_urb_t surb)
	{
	if (!surb->cb)
	{
	surb->cb = smscore_getbuffer(dev->coredev);
	if (!surb->cb)
	{
	printk(KERN_INFO "%s smscore_getbuffer(...) returned NULL\n", __func__);
	return -ENOMEM;
	}
	}

	usb_fill_bulk_urb(
	&surb->urb,
	dev->udev,
	usb_rcvbulkpipe(dev->udev, 0x81),
	surb->cb->p,
	dev->buffer_size,
	smsusb_onresponse,
	surb
	);
	surb->urb.transfer_dma = surb->cb->phys;
	surb->urb.transfer_flags \|= URB_NO_TRANSFER_DMA_MAP;

	return usb_submit_urb(&surb->urb, GFP_ATOMIC);
	}

	void smsusb_stop_streaming(smsusb_device_t *dev)
	{
	int i;

	for (i = 0; i < MAX_URBS; i ++)
	{
	usb_kill_urb(&dev->surbs[i].urb);

	if (dev->surbs[i].cb)
	{
	smscore_putbuffer(dev->coredev, dev->surbs[i].cb);
	dev->surbs[i].cb = NULL;
	}
	}
	}

	int smsusb_start_streaming(smsusb_device_t *dev)
	{
	int i, rc;

	for (i = 0; i < MAX_URBS; i ++)
	{
	rc = smsusb_submit_urb(dev, &dev->surbs[i]);
	if (rc < 0)
	{
	printk(KERN_INFO "%s smsusb_submit_urb(...) failed\n", __func__);
	smsusb_stop_streaming(dev);
	break;
	}
	}

	return rc;
	}

	int smsusb_sendrequest(void context, void buffer, size_t size)
	{
	smsusb_device_t dev = (smsusb_device_t ) context;
	int dummy;

	return usb_bulk_msg(dev->udev, usb_sndbulkpipe(dev->udev, 2), buffer, size, &dummy, 1000);
	}

	char *smsusb1_fw_lkup[] =
	{
	"dvbt_stellar_usb.inp",
	"dvbh_stellar_usb.inp",
	"tdmb_stellar_usb.inp",
	"none",
	"dvbt_bda_stellar_usb.inp",
	};

	int smsusb1_load_firmware(struct usb_device *udev, int id)
	{
	const struct firmware *fw;
	u8 *fw_buffer;
	int rc, dummy;

	if (id < DEVICE_MODE_DVBT \|\| id > DEVICE_MODE_DVBT_BDA)
	{
	printk(KERN_INFO "%s invalid firmware id specified %d\n", __func__, id);
	return -EINVAL;
	}

	rc = request_firmware(&fw, smsusb1_fw_lkup[id], &udev->dev);
	if (rc < 0)
	{
	printk(KERN_INFO "%s failed to open \"%s\" mode %d\n", __func__, smsusb1_fw_lkup[id], id);
	return rc;
	}

	fw_buffer = kmalloc(fw->size, GFP_KERNEL);
	if (fw_buffer)
	{
	memcpy(fw_buffer, fw->data, fw->size);

	rc = usb_bulk_msg(udev, usb_sndbulkpipe(udev, 2), fw_buffer, fw->size, &dummy, 1000);

	printk(KERN_INFO "%s: sent %d(%d) bytes, rc %d\n", __func__, fw->size, dummy, rc);

	kfree(fw_buffer);
	}
	else
	{
	printk(KERN_INFO "failed to allocate firmware buffer\n");
	rc = -ENOMEM;
	}

	release_firmware(fw);

	return rc;
	}

	void smsusb1_detectmode(void context, int mode)
	{
	char product_string = ((smsusb_device_t ) context)->udev->product;

	*mode = DEVICE_MODE_NONE;

	if (!product_string)
	{
	product_string = "none";
	printk("%s product string not found\n", __func__);
	}
	else
	{
	if (strstr(product_string, "DVBH"))
	*mode = 1;
	else if (strstr(product_string, "BDA"))
	*mode = 4;
	else if (strstr(product_string, "DVBT"))
	*mode = 0;
	else if (strstr(product_string, "TDMB"))
	*mode = 2;
	}

	printk("%s: %d \"%s\"\n", __func__, *mode, product_string);
	}

	int smsusb1_setmode(void *context, int mode)
	{
	SmsMsgHdr_ST Msg = { MSG_SW_RELOAD_REQ, 0, HIF_TASK, sizeof(SmsMsgHdr_ST), 0 };

	if (mode < DEVICE_MODE_DVBT \|\| mode > DEVICE_MODE_DVBT_BDA)
	{
	printk(KERN_INFO "%s invalid firmware id specified %d\n", __func__, mode);
	return -EINVAL;
	}

	return smsusb_sendrequest(context, &Msg, sizeof(Msg));
	}

	void smsusb_term_device(struct usb_interface *intf)
	{
	smsusb_device_t dev = (smsusb_device_t ) usb_get_intfdata(intf);

	if (dev)
	{
	smsusb_stop_streaming(dev);

	// unregister from smscore
	if (dev->coredev)
	smscore_unregister_device(dev->coredev);

	kfree(dev);

	printk(KERN_INFO "%s device %p destroyed\n", __func__, dev);
	}

	usb_set_intfdata(intf, NULL);
	}

	int smsusb_init_device(struct usb_interface *intf)
	{
	smsdevice_params_t params;
	smsusb_device_t *dev;
	int i, rc;

	// create device object
	dev = kzalloc(sizeof(smsusb_device_t), GFP_KERNEL);
	if (!dev)
	{
	printk(KERN_INFO "%s kzalloc(sizeof(smsusb_device_t) failed\n", __func__);
	return -ENOMEM;
	}

	memset(&params, 0, sizeof(params));
	usb_set_intfdata(intf, dev);
	dev->udev = interface_to_usbdev(intf);

	switch (dev->udev->descriptor.idProduct) {
	case 0x100:
	dev->buffer_size = USB1_BUFFER_SIZE;

	params.setmode_handler = smsusb1_setmode;
	params.detectmode_handler = smsusb1_detectmode;
	params.device_type = SMS_STELLAR;
	printk(KERN_INFO "%s stellar device found\n", __func__ );
	break;
	default:
	if (dev->udev->descriptor.idProduct == 0x200) {
	params.device_type = SMS_NOVA_A0;
	printk(KERN_INFO "%s nova A0 found\n", __FUNCTION__ );
	} else if (dev->udev->descriptor.idProduct == 0x201) {
	params.device_type = SMS_NOVA_B0;
	printk(KERN_INFO "%s nova B0 found\n", __FUNCTION__);
	} else {
	params.device_type = SMS_VEGA;
	printk(KERN_INFO "%s Vega found\n", __FUNCTION__);
	}

	dev->buffer_size = USB2_BUFFER_SIZE;
	dev->response_alignment = dev->udev->ep_in[1]->desc.wMaxPacketSize - sizeof(SmsMsgHdr_ST);

	params.flags \|= SMS_DEVICE_FAMILY2;
	break;
	}

	params.device = &dev->udev->dev;
	params.buffer_size = dev->buffer_size;
	params.num_buffers = MAX_BUFFERS;
	params.sendrequest_handler = smsusb_sendrequest;
	params.context = dev;
	snprintf(params.devpath, sizeof(params.devpath), "usb\\%d-%s", dev->udev->bus->busnum, dev->udev->devpath);

	// register in smscore
	rc = smscore_register_device(&params, &dev->coredev);
	if (rc < 0)
	{
	printk(KERN_INFO "%s smscore_register_device(...) failed, rc %d\n", __func__, rc);
	smsusb_term_device(intf);
	return rc;
	}

	// initialize urbs
	for (i = 0; i < MAX_URBS; i ++)
	{
	dev->surbs[i].dev = dev;
	usb_init_urb(&dev->surbs[i].urb);
	}

	printk(KERN_INFO "%s smsusb_start_streaming(...).\n", __func__);
	rc = smsusb_start_streaming(dev);
	if (rc < 0)
	{
	printk(KERN_INFO "%s smsusb_start_streaming(...) failed\n", __func__);
	smsusb_term_device(intf);
	return rc;
	}

	rc = smscore_start_device(dev->coredev);
	if (rc < 0)
	{
	printk(KERN_INFO "%s smscore_start_device(...) failed\n", __func__);
	smsusb_term_device(intf);
	return rc;
	}

	printk(KERN_INFO "%s device %p created\n", __func__, dev);

	return rc;
	}

	int smsusb_probe(struct usb_interface intf, const struct usb_device_id id)
	{
	struct usb_device *udev = interface_to_usbdev(intf);
	char devpath[32];
	int i, rc;

	rc = usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x81));
	rc = usb_clear_halt(udev, usb_rcvbulkpipe(udev, 0x02));

	if (intf->num_altsetting > 0)
	{
	rc = usb_set_interface(udev, intf->cur_altsetting->desc.bInterfaceNumber, 0);
	if (rc < 0)
	{
	printk(KERN_INFO "%s usb_set_interface failed, rc %d\n", __func__, rc);
	return rc;
	}
	}

	printk(KERN_INFO "smsusb_probe %d\n", intf->cur_altsetting->desc.bInterfaceNumber);
	for (i = 0; i < intf->cur_altsetting->desc.bNumEndpoints; i ++)
	printk(KERN_INFO "endpoint %d %02x %02x %d\n", i, intf->cur_altsetting->endpoint[i].desc.bEndpointAddress, intf->cur_altsetting->endpoint[i].desc.bmAttributes, intf->cur_altsetting->endpoint[i].desc.wMaxPacketSize);

	if (udev->actconfig->desc.bNumInterfaces == 2 && intf->cur_altsetting->desc.bInterfaceNumber == 0)
	{
	printk(KERN_INFO "rom interface 0 is not used\n");
	return -ENODEV;
	}

	if (intf->cur_altsetting->desc.bInterfaceNumber == 1)
	{
	snprintf(devpath, sizeof(devpath), "usb\\%d-%s", udev->bus->busnum, udev->devpath);
	printk(KERN_INFO "stellar device was found.\n");
	return smsusb1_load_firmware(udev, smscore_registry_getmode(devpath));
	}

	rc = smsusb_init_device(intf);
	printk(KERN_INFO "%s rc %d\n", __FUNCTION__, rc);
	return rc;
	}

	void smsusb_disconnect(struct usb_interface *intf)
	{
	smsusb_term_device(intf);
	}

	static struct usb_device_id smsusb_id_table [] = {
	{ USB_DEVICE(0x187F, 0x0010) },
	{ USB_DEVICE(0x187F, 0x0100) },
	{ USB_DEVICE(0x187F, 0x0200) },
	{ } /* Terminating entry */
	};
	MODULE_DEVICE_TABLE (usb, smsusb_id_table);

	static struct usb_driver smsusb_driver = {
	.name = "smsusb",
	.probe = smsusb_probe,
	.disconnect = smsusb_disconnect,
	.id_table = smsusb_id_table,
	};

	int smsusb_register(void)
	{
	int rc = usb_register(&smsusb_driver);
	if (rc)
	printk(KERN_INFO "usb_register failed. Error number %d\n", rc);

	printk(KERN_INFO "%s\n", __func__);

	return rc;
	}

	void smsusb_unregister(void)
	{
	/* Regular USB Cleanup */
	usb_deregister(&smsusb_driver);
	printk(KERN_INFO "%s\n", __func__);
	}