merge: http://kernellabs.com/hg/~dheitmueller/empire-fix

From: Mauro Carvalho Chehab <mchehab@redhat.com>

Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

28 files changed, 2833 insertions, 2019 deletions

diff --git a/linux/drivers/media/dvb/dvb-usb/cxusb.c b/linux/drivers/media/dvb/dvb-usb/cxusb.c
index f467cad8a..05da84c90 100644
--- a/linux/drivers/media/dvb/dvb-usb/cxusb.c
+++ b/linux/drivers/media/dvb/dvb-usb/cxusb.c
@@ -38,7 +38,7 @@
 #include "mxl5005s.h"
 #include "dib7000p.h"
 #include "dib0070.h"
-#include "lgs8gl5.h"
+#include "lgs8gxx.h"
 
 /* debug */
 static int dvb_usb_cxusb_debug;
@@ -1097,8 +1097,18 @@ static int cxusb_nano2_frontend_attach(struct dvb_usb_adapter *adap)
 	return -EIO;
 }
 
-static struct lgs8gl5_config lgs8gl5_cfg = {
+static struct lgs8gxx_config d680_lgs8gl5_cfg = {
+	.prod = LGS8GXX_PROD_LGS8GL5,
 	.demod_address = 0x19,
+	.serial_ts = 0,
+	.ts_clk_pol = 0,
+	.ts_clk_gated = 1,
+	.if_clk_freq = 30400, /* 30.4 MHz */
+	.if_freq = 5725, /* 5.725 MHz */
+	.if_neg_center = 0,
+	.ext_adc = 0,
+	.adc_signed = 0,
+	.if_neg_edge = 0,
 };
 
 static int cxusb_d680_dmb_frontend_attach(struct dvb_usb_adapter *adap)
@@ -1138,7 +1148,7 @@ static int cxusb_d680_dmb_frontend_attach(struct dvb_usb_adapter *adap)
 	msleep(100);
 
 	/* Attach frontend */
-	adap->fe = dvb_attach(lgs8gl5_attach, &lgs8gl5_cfg, &d->i2c_adap);
+	adap->fe = dvb_attach(lgs8gxx_attach, &d680_lgs8gl5_cfg, &d->i2c_adap);
 	if (adap->fe == NULL)
 		return -EIO;
 
diff --git a/linux/drivers/media/dvb/frontends/cx24113.c b/linux/drivers/media/dvb/frontends/cx24113.c
index e4fd533a4..075b2b57c 100644
--- a/linux/drivers/media/dvb/frontends/cx24113.c
+++ b/linux/drivers/media/dvb/frontends/cx24113.c
@@ -303,6 +303,7 @@ static void cx24113_calc_pll_nf(struct cx24113_state *state, u16 *n, s32 *f)
 {
 	s32 N;
 	s64 F;
+	u64 dividend;
 	u8 R, r;
 	u8 vcodiv;
 	u8 factor;
@@ -346,7 +347,10 @@ static void cx24113_calc_pll_nf(struct cx24113_state *state, u16 *n, s32 *f)
 	F = freq_hz;
 	F *= (u64) (R * vcodiv * 262144);
 	dprintk("1 N: %d, F: %lld, R: %d\n", N, (long long)F, R);
-	do_div(F, state->config->xtal_khz*1000 * factor * 2);
+	/* do_div needs an u64 as first argument */
+	dividend = F;
+	do_div(dividend, state->config->xtal_khz * 1000 * factor * 2);
+	F = dividend;
 	dprintk("2 N: %d, F: %lld, R: %d\n", N, (long long)F, R);
 	F -= (N + 32) * 262144;
 
diff --git a/linux/drivers/media/radio/Kconfig b/linux/drivers/media/radio/Kconfig
index 3315cac87..41bbec6df 100644
--- a/linux/drivers/media/radio/Kconfig
+++ b/linux/drivers/media/radio/Kconfig
@@ -351,29 +351,11 @@ config USB_DSBR
 	  To compile this driver as a module, choose M here: the
 	  module will be called dsbr100.
 
-config USB_SI470X
-	tristate "Silicon Labs Si470x FM Radio Receiver support"
-	depends on USB && VIDEO_V4L2
-	---help---
-	  This is a driver for USB devices with the Silicon Labs SI470x
-	  chip. Currently these devices are known to work:
-	  - 10c4:818a: Silicon Labs USB FM Radio Reference Design
-	  - 06e1:a155: ADS/Tech FM Radio Receiver (formerly Instant FM Music)
-	  - 1b80:d700: KWorld USB FM Radio SnapMusic Mobile 700 (FM700)
-
-	  Sound is provided by the ALSA USB Audio/MIDI driver. Therefore
-	  if you don't want to use the device solely for RDS receiving,
-	  it is recommended to also select SND_USB_AUDIO.
-
-	  Please have a look at the documentation, especially on how
-	  to redirect the audio stream from the radio to your sound device:
-	  Documentation/video4linux/si470x.txt
-
-	  Say Y here if you want to connect this type of radio to your
-	  computer's USB port.
+config RADIO_SI470X
+	bool "Silicon Labs Si470x FM Radio Receiver support"
+	depends on VIDEO_V4L2
 
-	  To compile this driver as a module, choose M here: the
-	  module will be called radio-si470x.
+source "drivers/media/radio/si470x/Kconfig"
 
 config USB_MR800
 	tristate "AverMedia MR 800 USB FM radio support"
diff --git a/linux/drivers/media/radio/Makefile b/linux/drivers/media/radio/Makefile
index 0f2b35b3e..18111e1fe 100644
--- a/linux/drivers/media/radio/Makefile
+++ b/linux/drivers/media/radio/Makefile
@@ -17,7 +17,7 @@ obj-$(CONFIG_RADIO_GEMTEK_PCI) += radio-gemtek-pci.o
 obj-$(CONFIG_RADIO_TRUST) += radio-trust.o
 obj-$(CONFIG_RADIO_MAESTRO) += radio-maestro.o
 obj-$(CONFIG_USB_DSBR) += dsbr100.o
-obj-$(CONFIG_USB_SI470X) += radio-si470x.o
+obj-$(CONFIG_RADIO_SI470X) += si470x/
 obj-$(CONFIG_USB_MR800) += radio-mr800.o
 obj-$(CONFIG_RADIO_TEA5764) += radio-tea5764.o
 
diff --git a/linux/drivers/media/radio/radio-si470x.c b/linux/drivers/media/radio/radio-si470x.c
deleted file mode 100644
index 5b4cab3d0..000000000
--- a/linux/drivers/media/radio/radio-si470x.c
+++ /dev/null
@@ -1,1870 +0,0 @@
-/*
- *  drivers/media/radio/radio-si470x.c
- *
- *  Driver for USB radios for the Silicon Labs Si470x FM Radio Receivers:
- *   - Silicon Labs USB FM Radio Reference Design
- *   - ADS/Tech FM Radio Receiver (formerly Instant FM Music) (RDX-155-EF)
- *   - KWorld USB FM Radio SnapMusic Mobile 700 (FM700)
- *   - Sanei Electric, Inc. FM USB Radio (sold as DealExtreme.com PCear)
- *
- *  Copyright (c) 2009 Tobias Lorenz <tobias.lorenz@gmx.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-
-/*
- * History:
- * 2008-01-12	Tobias Lorenz <tobias.lorenz@gmx.net>
- *		Version 1.0.0
- *		- First working version
- * 2008-01-13	Tobias Lorenz <tobias.lorenz@gmx.net>
- *		Version 1.0.1
- *		- Improved error handling, every function now returns errno
- *		- Improved multi user access (start/mute/stop)
- *		- Channel doesn't get lost anymore after start/mute/stop
- *		- RDS support added (polling mode via interrupt EP 1)
- *		- marked default module parameters with *value*
- *		- switched from bit structs to bit masks
- *		- header file cleaned and integrated
- * 2008-01-14	Tobias Lorenz <tobias.lorenz@gmx.net>
- * 		Version 1.0.2
- * 		- hex values are now lower case
- * 		- commented USB ID for ADS/Tech moved on todo list
- * 		- blacklisted si470x in hid-quirks.c
- * 		- rds buffer handling functions integrated into *_work, *_read
- * 		- rds_command in si470x_poll exchanged against simple retval
- * 		- check for firmware version 15
- * 		- code order and prototypes still remain the same
- * 		- spacing and bottom of band codes remain the same
- * 2008-01-16	Tobias Lorenz <tobias.lorenz@gmx.net>
- *		Version 1.0.3
- * 		- code reordered to avoid function prototypes
- *		- switch/case defaults are now more user-friendly
- *		- unified comment style
- *		- applied all checkpatch.pl v1.12 suggestions
- *		  except the warning about the too long lines with bit comments
- *		- renamed FMRADIO to RADIO to cut line length (checkpatch.pl)
- * 2008-01-22	Tobias Lorenz <tobias.lorenz@gmx.net>
- *		Version 1.0.4
- *		- avoid poss. locking when doing copy_to_user which may sleep
- *		- RDS is automatically activated on read now
- *		- code cleaned of unnecessary rds_commands
- *		- USB Vendor/Product ID for ADS/Tech FM Radio Receiver verified
- *		  (thanks to Guillaume RAMOUSSE)
- * 2008-01-27	Tobias Lorenz <tobias.lorenz@gmx.net>
- *		Version 1.0.5
- *		- number of seek_retries changed to tune_timeout
- *		- fixed problem with incomplete tune operations by own buffers
- *		- optimization of variables and printf types
- *		- improved error logging
- * 2008-01-31	Tobias Lorenz <tobias.lorenz@gmx.net>
- *		Oliver Neukum <oliver@neukum.org>
- *		Version 1.0.6
- *		- fixed coverity checker warnings in *_usb_driver_disconnect
- *		- probe()/open() race by correct ordering in probe()
- *		- DMA coherency rules by separate allocation of all buffers
- *		- use of endianness macros
- *		- abuse of spinlock, replaced by mutex
- *		- racy handling of timer in disconnect,
- *		  replaced by delayed_work
- *		- racy interruptible_sleep_on(),
- *		  replaced with wait_event_interruptible()
- *		- handle signals in read()
- * 2008-02-08	Tobias Lorenz <tobias.lorenz@gmx.net>
- *		Oliver Neukum <oliver@neukum.org>
- *		Version 1.0.7
- *		- usb autosuspend support
- *		- unplugging fixed
- * 2008-05-07	Tobias Lorenz <tobias.lorenz@gmx.net>
- *		Version 1.0.8
- *		- hardware frequency seek support
- *		- afc indication
- *		- more safety checks, let si470x_get_freq return errno
- *		- vidioc behavior corrected according to v4l2 spec
- * 2008-10-20	Alexey Klimov <klimov.linux@gmail.com>
- * 		- add support for KWorld USB FM Radio FM700
- * 		- blacklisted KWorld radio in hid-core.c and hid-ids.h
- * 2008-12-03	Mark Lord <mlord@pobox.com>
- *		- add support for DealExtreme USB Radio
- * 2009-01-31	Bob Ross <pigiron@gmx.com>
- *		- correction of stereo detection/setting
- *		- correction of signal strength indicator scaling
- * 2009-01-31	Rick Bronson <rick@efn.org>
- *		Tobias Lorenz <tobias.lorenz@gmx.net>
- *		- add LED status output
- *		- get HW/SW version from scratchpad
- * 2009-06-16   Edouard Lafargue <edouard@lafargue.name>
- *		Version 1.0.10
- *		- add support for interrupt mode for RDS endpoint,
- *                instead of polling.
- *                Improves RDS reception significantly
- *
- * ToDo:
- * - add firmware download/update support
- */
-
-
-/* driver definitions */
-#define DRIVER_AUTHOR "Tobias Lorenz <tobias.lorenz@gmx.net>"
-#define DRIVER_NAME "radio-si470x"
-#define DRIVER_KERNEL_VERSION KERNEL_VERSION(1, 0, 10)
-#define DRIVER_CARD "Silicon Labs Si470x FM Radio Receiver"
-#define DRIVER_DESC "USB radio driver for Si470x FM Radio Receivers"
-#define DRIVER_VERSION "1.0.10"
-
-
-/* kernel includes */
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/smp_lock.h>
-#include <linux/input.h>
-#include <linux/usb.h>
-#include <linux/hid.h>
-#include <linux/version.h>
-#include "compat.h"
-#include <linux/videodev2.h>
-#include <linux/mutex.h>
-#include <media/v4l2-common.h>
-#include <media/v4l2-ioctl.h>
-#include <media/rds.h>
-#include <asm/unaligned.h>
-
-
-/* USB Device ID List */
-static struct usb_device_id si470x_usb_driver_id_table[] = {
-	/* Silicon Labs USB FM Radio Reference Design */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x10c4, 0x818a, USB_CLASS_HID, 0, 0) },
-	/* ADS/Tech FM Radio Receiver (formerly Instant FM Music) */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x06e1, 0xa155, USB_CLASS_HID, 0, 0) },
-	/* KWorld USB FM Radio SnapMusic Mobile 700 (FM700) */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x1b80, 0xd700, USB_CLASS_HID, 0, 0) },
-	/* Sanei Electric, Inc. FM USB Radio (sold as DealExtreme.com PCear) */
-	{ USB_DEVICE_AND_INTERFACE_INFO(0x10c5, 0x819a, USB_CLASS_HID, 0, 0) },
-	/* Terminating entry */
-	{ }
-};
-MODULE_DEVICE_TABLE(usb, si470x_usb_driver_id_table);
-
-
-
-/**************************************************************************
- * Module Parameters
- **************************************************************************/
-
-/* Radio Nr */
-static int radio_nr = -1;
-module_param(radio_nr, int, 0444);
-MODULE_PARM_DESC(radio_nr, "Radio Nr");
-
-/* Spacing (kHz) */
-/* 0: 200 kHz (USA, Australia) */
-/* 1: 100 kHz (Europe, Japan) */
-/* 2:  50 kHz */
-static unsigned short space = 2;
-module_param(space, ushort, 0444);
-MODULE_PARM_DESC(space, "Spacing: 0=200kHz 1=100kHz *2=50kHz*");
-
-/* Bottom of Band (MHz) */
-/* 0: 87.5 - 108 MHz (USA, Europe)*/
-/* 1: 76   - 108 MHz (Japan wide band) */
-/* 2: 76   -  90 MHz (Japan) */
-static unsigned short band = 1;
-module_param(band, ushort, 0444);
-MODULE_PARM_DESC(band, "Band: 0=87.5..108MHz *1=76..108MHz* 2=76..90MHz");
-
-/* De-emphasis */
-/* 0: 75 us (USA) */
-/* 1: 50 us (Europe, Australia, Japan) */
-static unsigned short de = 1;
-module_param(de, ushort, 0444);
-MODULE_PARM_DESC(de, "De-emphasis: 0=75us *1=50us*");
-
-/* USB timeout */
-static unsigned int usb_timeout = 500;
-module_param(usb_timeout, uint, 0644);
-MODULE_PARM_DESC(usb_timeout, "USB timeout (ms): *500*");
-
-/* Tune timeout */
-static unsigned int tune_timeout = 3000;
-module_param(tune_timeout, uint, 0644);
-MODULE_PARM_DESC(tune_timeout, "Tune timeout: *3000*");
-
-/* Seek timeout */
-static unsigned int seek_timeout = 5000;
-module_param(seek_timeout, uint, 0644);
-MODULE_PARM_DESC(seek_timeout, "Seek timeout: *5000*");
-
-/* RDS buffer blocks */
-static unsigned int rds_buf = 100;
-module_param(rds_buf, uint, 0444);
-MODULE_PARM_DESC(rds_buf, "RDS buffer entries: *100*");
-
-/* RDS maximum block errors */
-static unsigned short max_rds_errors = 1;
-/* 0 means   0  errors requiring correction */
-/* 1 means 1-2  errors requiring correction (used by original USBRadio.exe) */
-/* 2 means 3-5  errors requiring correction */
-/* 3 means   6+ errors or errors in checkword, correction not possible */
-module_param(max_rds_errors, ushort, 0644);
-MODULE_PARM_DESC(max_rds_errors, "RDS maximum block errors: *1*");
-
-
-/**************************************************************************
- * Register Definitions
- **************************************************************************/
-#define RADIO_REGISTER_SIZE	2	/* 16 register bit width */
-#define RADIO_REGISTER_NUM	16	/* DEVICEID   ... RDSD */
-#define RDS_REGISTER_NUM	6	/* STATUSRSSI ... RDSD */
-
-#define DEVICEID		0	/* Device ID */
-#define DEVICEID_PN		0xf000	/* bits 15..12: Part Number */
-#define DEVICEID_MFGID		0x0fff	/* bits 11..00: Manufacturer ID */
-
-#define CHIPID			1	/* Chip ID */
-#define CHIPID_REV		0xfc00	/* bits 15..10: Chip Version */
-#define CHIPID_DEV		0x0200	/* bits 09..09: Device */
-#define CHIPID_FIRMWARE		0x01ff	/* bits 08..00: Firmware Version */
-
-#define POWERCFG		2	/* Power Configuration */
-#define POWERCFG_DSMUTE		0x8000	/* bits 15..15: Softmute Disable */
-#define POWERCFG_DMUTE		0x4000	/* bits 14..14: Mute Disable */
-#define POWERCFG_MONO		0x2000	/* bits 13..13: Mono Select */
-#define POWERCFG_RDSM		0x0800	/* bits 11..11: RDS Mode (Si4701 only) */
-#define POWERCFG_SKMODE		0x0400	/* bits 10..10: Seek Mode */
-#define POWERCFG_SEEKUP		0x0200	/* bits 09..09: Seek Direction */
-#define POWERCFG_SEEK		0x0100	/* bits 08..08: Seek */
-#define POWERCFG_DISABLE	0x0040	/* bits 06..06: Powerup Disable */
-#define POWERCFG_ENABLE		0x0001	/* bits 00..00: Powerup Enable */
-
-#define CHANNEL			3	/* Channel */
-#define CHANNEL_TUNE		0x8000	/* bits 15..15: Tune */
-#define CHANNEL_CHAN		0x03ff	/* bits 09..00: Channel Select */
-
-#define SYSCONFIG1		4	/* System Configuration 1 */
-#define SYSCONFIG1_RDSIEN	0x8000	/* bits 15..15: RDS Interrupt Enable (Si4701 only) */
-#define SYSCONFIG1_STCIEN	0x4000	/* bits 14..14: Seek/Tune Complete Interrupt Enable */
-#define SYSCONFIG1_RDS		0x1000	/* bits 12..12: RDS Enable (Si4701 only) */
-#define SYSCONFIG1_DE		0x0800	/* bits 11..11: De-emphasis (0=75us 1=50us) */
-#define SYSCONFIG1_AGCD		0x0400	/* bits 10..10: AGC Disable */
-#define SYSCONFIG1_BLNDADJ	0x00c0	/* bits 07..06: Stereo/Mono Blend Level Adjustment */
-#define SYSCONFIG1_GPIO3	0x0030	/* bits 05..04: General Purpose I/O 3 */
-#define SYSCONFIG1_GPIO2	0x000c	/* bits 03..02: General Purpose I/O 2 */
-#define SYSCONFIG1_GPIO1	0x0003	/* bits 01..00: General Purpose I/O 1 */
-
-#define SYSCONFIG2		5	/* System Configuration 2 */
-#define SYSCONFIG2_SEEKTH	0xff00	/* bits 15..08: RSSI Seek Threshold */
-#define SYSCONFIG2_BAND		0x0080	/* bits 07..06: Band Select */
-#define SYSCONFIG2_SPACE	0x0030	/* bits 05..04: Channel Spacing */
-#define SYSCONFIG2_VOLUME	0x000f	/* bits 03..00: Volume */
-
-#define SYSCONFIG3		6	/* System Configuration 3 */
-#define SYSCONFIG3_SMUTER	0xc000	/* bits 15..14: Softmute Attack/Recover Rate */
-#define SYSCONFIG3_SMUTEA	0x3000	/* bits 13..12: Softmute Attenuation */
-#define SYSCONFIG3_SKSNR	0x00f0	/* bits 07..04: Seek SNR Threshold */
-#define SYSCONFIG3_SKCNT	0x000f	/* bits 03..00: Seek FM Impulse Detection Threshold */
-
-#define TEST1			7	/* Test 1 */
-#define TEST1_AHIZEN		0x4000	/* bits 14..14: Audio High-Z Enable */
-
-#define TEST2			8	/* Test 2 */
-/* TEST2 only contains reserved bits */
-
-#define BOOTCONFIG		9	/* Boot Configuration */
-/* BOOTCONFIG only contains reserved bits */
-
-#define STATUSRSSI		10	/* Status RSSI */
-#define STATUSRSSI_RDSR		0x8000	/* bits 15..15: RDS Ready (Si4701 only) */
-#define STATUSRSSI_STC		0x4000	/* bits 14..14: Seek/Tune Complete */
-#define STATUSRSSI_SF		0x2000	/* bits 13..13: Seek Fail/Band Limit */
-#define STATUSRSSI_AFCRL	0x1000	/* bits 12..12: AFC Rail */
-#define STATUSRSSI_RDSS		0x0800	/* bits 11..11: RDS Synchronized (Si4701 only) */
-#define STATUSRSSI_BLERA	0x0600	/* bits 10..09: RDS Block A Errors (Si4701 only) */
-#define STATUSRSSI_ST		0x0100	/* bits 08..08: Stereo Indicator */
-#define STATUSRSSI_RSSI		0x00ff	/* bits 07..00: RSSI (Received Signal Strength Indicator) */
-
-#define READCHAN		11	/* Read Channel */
-#define READCHAN_BLERB		0xc000	/* bits 15..14: RDS Block D Errors (Si4701 only) */
-#define READCHAN_BLERC		0x3000	/* bits 13..12: RDS Block C Errors (Si4701 only) */
-#define READCHAN_BLERD		0x0c00	/* bits 11..10: RDS Block B Errors (Si4701 only) */
-#define READCHAN_READCHAN	0x03ff	/* bits 09..00: Read Channel */
-
-#define RDSA			12	/* RDSA */
-#define RDSA_RDSA		0xffff	/* bits 15..00: RDS Block A Data (Si4701 only) */
-
-#define RDSB			13	/* RDSB */
-#define RDSB_RDSB		0xffff	/* bits 15..00: RDS Block B Data (Si4701 only) */
-
-#define RDSC			14	/* RDSC */
-#define RDSC_RDSC		0xffff	/* bits 15..00: RDS Block C Data (Si4701 only) */
-
-#define RDSD			15	/* RDSD */
-#define RDSD_RDSD		0xffff	/* bits 15..00: RDS Block D Data (Si4701 only) */
-
-
-
-/**************************************************************************
- * USB HID Reports
- **************************************************************************/
-
-/* Reports 1-16 give direct read/write access to the 16 Si470x registers */
-/* with the (REPORT_ID - 1) corresponding to the register address across USB */
-/* endpoint 0 using GET_REPORT and SET_REPORT */
-#define REGISTER_REPORT_SIZE	(RADIO_REGISTER_SIZE + 1)
-#define REGISTER_REPORT(reg)	((reg) + 1)
-
-/* Report 17 gives direct read/write access to the entire Si470x register */
-/* map across endpoint 0 using GET_REPORT and SET_REPORT */
-#define ENTIRE_REPORT_SIZE	(RADIO_REGISTER_NUM * RADIO_REGISTER_SIZE + 1)
-#define ENTIRE_REPORT		17
-
-/* Report 18 is used to send the lowest 6 Si470x registers up the HID */
-/* interrupt endpoint 1 to Windows every 20 milliseconds for status */
-#define RDS_REPORT_SIZE		(RDS_REGISTER_NUM * RADIO_REGISTER_SIZE + 1)
-#define RDS_REPORT		18
-
-/* Report 19: LED state */
-#define LED_REPORT_SIZE		3
-#define LED_REPORT		19
-
-/* Report 19: stream */
-#define STREAM_REPORT_SIZE	3
-#define STREAM_REPORT		19
-
-/* Report 20: scratch */
-#define SCRATCH_PAGE_SIZE	63
-#define SCRATCH_REPORT_SIZE	(SCRATCH_PAGE_SIZE + 1)
-#define SCRATCH_REPORT		20
-
-/* Reports 19-22: flash upgrade of the C8051F321 */
-#define WRITE_REPORT_SIZE	4
-#define WRITE_REPORT		19
-#define FLASH_REPORT_SIZE	64
-#define FLASH_REPORT		20
-#define CRC_REPORT_SIZE		3
-#define CRC_REPORT		21
-#define RESPONSE_REPORT_SIZE	2
-#define RESPONSE_REPORT		22
-
-/* Report 23: currently unused, but can accept 60 byte reports on the HID */
-/* interrupt out endpoint 2 every 1 millisecond */
-#define UNUSED_REPORT		23
-
-
-
-/**************************************************************************
- * Software/Hardware Versions
- **************************************************************************/
-#define RADIO_SW_VERSION_NOT_BOOTLOADABLE	6
-#define RADIO_SW_VERSION			7
-#define RADIO_SW_VERSION_CURRENT		15
-#define RADIO_HW_VERSION			1
-
-#define SCRATCH_PAGE_SW_VERSION	1
-#define SCRATCH_PAGE_HW_VERSION	2
-
-
-
-/**************************************************************************
- * LED State Definitions
- **************************************************************************/
-#define LED_COMMAND		0x35
-
-#define NO_CHANGE_LED		0x00
-#define ALL_COLOR_LED		0x01	/* streaming state */
-#define BLINK_GREEN_LED		0x02	/* connect state */
-#define BLINK_RED_LED		0x04
-#define BLINK_ORANGE_LED	0x10	/* disconnect state */
-#define SOLID_GREEN_LED		0x20	/* tuning/seeking state */
-#define SOLID_RED_LED		0x40	/* bootload state */
-#define SOLID_ORANGE_LED	0x80
-
-
-
-/**************************************************************************
- * Stream State Definitions
- **************************************************************************/
-#define STREAM_COMMAND	0x36
-#define STREAM_VIDPID	0x00
-#define STREAM_AUDIO	0xff
-
-
-
-/**************************************************************************
- * Bootloader / Flash Commands
- **************************************************************************/
-
-/* unique id sent to bootloader and required to put into a bootload state */
-#define UNIQUE_BL_ID		0x34
-
-/* mask for the flash data */
-#define FLASH_DATA_MASK		0x55
-
-/* bootloader commands */
-#define GET_SW_VERSION_COMMAND	0x00
-#define SET_PAGE_COMMAND	0x01
-#define ERASE_PAGE_COMMAND	0x02
-#define WRITE_PAGE_COMMAND	0x03
-#define CRC_ON_PAGE_COMMAND	0x04
-#define READ_FLASH_BYTE_COMMAND	0x05
-#define RESET_DEVICE_COMMAND	0x06
-#define GET_HW_VERSION_COMMAND	0x07
-#define BLANK			0xff
-
-/* bootloader command responses */
-#define COMMAND_OK		0x01
-#define COMMAND_FAILED		0x02
-#define COMMAND_PENDING		0x03
-
-
-
-/**************************************************************************
- * General Driver Definitions
- **************************************************************************/
-
-/*
- * si470x_device - private data
- */
-struct si470x_device {
-	/* reference to USB and video device */
-	struct usb_device *usbdev;
-	struct usb_interface *intf;
-	struct video_device *videodev;
-
-	/* Interrupt endpoint handling */
-	char *int_in_buffer;
-	struct usb_endpoint_descriptor *int_in_endpoint;
-	struct urb *int_in_urb;
-	int int_in_running;
-
-	/* driver management */
-	unsigned int users;
-	unsigned char disconnected;
-	struct mutex disconnect_lock;
-
-	/* Silabs internal registers (0..15) */
-	unsigned short registers[RADIO_REGISTER_NUM];
-
-	/* RDS receive buffer */
-	wait_queue_head_t read_queue;
-	struct mutex lock;		/* buffer locking */
-	unsigned char *buffer;		/* size is always multiple of three */
-	unsigned int buf_size;
-	unsigned int rd_index;
-	unsigned int wr_index;
-
-	/* scratch page */
-	unsigned char software_version;
-	unsigned char hardware_version;
-};
-
-
-/*
- * The frequency is set in units of 62.5 Hz when using V4L2_TUNER_CAP_LOW,
- * 62.5 kHz otherwise.
- * The tuner is able to have a channel spacing of 50, 100 or 200 kHz.
- * tuner->capability is therefore set to V4L2_TUNER_CAP_LOW
- * The FREQ_MUL is then: 1 MHz / 62.5 Hz = 16000
- */
-#define FREQ_MUL (1000000 / 62.5)
-
-
-
-/**************************************************************************
- * General Driver Functions - REGISTER_REPORTs
- **************************************************************************/
-
-/*
- * si470x_get_report - receive a HID report
- */
-static int si470x_get_report(struct si470x_device *radio, void *buf, int size)
-{
-	unsigned char *report = (unsigned char *) buf;
-	int retval;
-
-	retval = usb_control_msg(radio->usbdev,
-		usb_rcvctrlpipe(radio->usbdev, 0),
-		HID_REQ_GET_REPORT,
-		USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
-		report[0], 2,
-		buf, size, usb_timeout);
-
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": si470x_get_report: usb_control_msg returned %d\n",
-			retval);
-	return retval;
-}
-
-
-/*
- * si470x_set_report - send a HID report
- */
-static int si470x_set_report(struct si470x_device *radio, void *buf, int size)
-{
-	unsigned char *report = (unsigned char *) buf;
-	int retval;
-
-	retval = usb_control_msg(radio->usbdev,
-		usb_sndctrlpipe(radio->usbdev, 0),
-		HID_REQ_SET_REPORT,
-		USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
-		report[0], 2,
-		buf, size, usb_timeout);
-
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": si470x_set_report: usb_control_msg returned %d\n",
-			retval);
-	return retval;
-}
-
-
-/*
- * si470x_get_register - read register
- */
-static int si470x_get_register(struct si470x_device *radio, int regnr)
-{
-	unsigned char buf[REGISTER_REPORT_SIZE];
-	int retval;
-
-	buf[0] = REGISTER_REPORT(regnr);
-
-	retval = si470x_get_report(radio, (void *) &buf, sizeof(buf));
-
-	if (retval >= 0)
-		radio->registers[regnr] = get_unaligned_be16(&buf[1]);
-
-	return (retval < 0) ? -EINVAL : 0;
-}
-
-
-/*
- * si470x_set_register - write register
- */
-static int si470x_set_register(struct si470x_device *radio, int regnr)
-{
-	unsigned char buf[REGISTER_REPORT_SIZE];
-	int retval;
-
-	buf[0] = REGISTER_REPORT(regnr);
-	put_unaligned_be16(radio->registers[regnr], &buf[1]);
-
-	retval = si470x_set_report(radio, (void *) &buf, sizeof(buf));
-
-	return (retval < 0) ? -EINVAL : 0;
-}
-
-
-/*
- * si470x_set_chan - set the channel
- */
-static int si470x_set_chan(struct si470x_device *radio, unsigned short chan)
-{
-	int retval;
-	unsigned long timeout;
-	bool timed_out = 0;
-
-	/* start tuning */
-	radio->registers[CHANNEL] &= ~CHANNEL_CHAN;
-	radio->registers[CHANNEL] |= CHANNEL_TUNE | chan;
-	retval = si470x_set_register(radio, CHANNEL);
-	if (retval < 0)
-		goto done;
-
-	/* wait till tune operation has completed */
-	timeout = jiffies + msecs_to_jiffies(tune_timeout);
-	do {
-		retval = si470x_get_register(radio, STATUSRSSI);
-		if (retval < 0)
-			goto stop;
-		timed_out = time_after(jiffies, timeout);
-	} while (((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) &&
-		(!timed_out));
-	if ((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0)
-		printk(KERN_WARNING DRIVER_NAME ": tune does not complete\n");
-	if (timed_out)
-		printk(KERN_WARNING DRIVER_NAME
-			": tune timed out after %u ms\n", tune_timeout);
-
-stop:
-	/* stop tuning */
-	radio->registers[CHANNEL] &= ~CHANNEL_TUNE;
-	retval = si470x_set_register(radio, CHANNEL);
-
-done:
-	return retval;
-}
-
-
-/*
- * si470x_get_freq - get the frequency
- */
-static int si470x_get_freq(struct si470x_device *radio, unsigned int *freq)
-{
-	unsigned int spacing, band_bottom;
-	unsigned short chan;
-	int retval;
-
-	/* Spacing (kHz) */
-	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_SPACE) >> 4) {
-	/* 0: 200 kHz (USA, Australia) */
-	case 0:
-		spacing = 0.200 * FREQ_MUL; break;
-	/* 1: 100 kHz (Europe, Japan) */
-	case 1:
-		spacing = 0.100 * FREQ_MUL; break;
-	/* 2:  50 kHz */
-	default:
-		spacing = 0.050 * FREQ_MUL; break;
-	};
-
-	/* Bottom of Band (MHz) */
-	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
-	/* 0: 87.5 - 108 MHz (USA, Europe) */
-	case 0:
-		band_bottom = 87.5 * FREQ_MUL; break;
-	/* 1: 76   - 108 MHz (Japan wide band) */
-	default:
-		band_bottom = 76   * FREQ_MUL; break;
-	/* 2: 76   -  90 MHz (Japan) */
-	case 2:
-		band_bottom = 76   * FREQ_MUL; break;
-	};
-
-	/* read channel */
-	retval = si470x_get_register(radio, READCHAN);
-	chan = radio->registers[READCHAN] & READCHAN_READCHAN;
-
-	/* Frequency (MHz) = Spacing (kHz) x Channel + Bottom of Band (MHz) */
-	*freq = chan * spacing + band_bottom;
-
-	return retval;
-}
-
-
-/*
- * si470x_set_freq - set the frequency
- */
-static int si470x_set_freq(struct si470x_device *radio, unsigned int freq)
-{
-	unsigned int spacing, band_bottom;
-	unsigned short chan;
-
-	/* Spacing (kHz) */
-	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_SPACE) >> 4) {
-	/* 0: 200 kHz (USA, Australia) */
-	case 0:
-		spacing = 0.200 * FREQ_MUL; break;
-	/* 1: 100 kHz (Europe, Japan) */
-	case 1:
-		spacing = 0.100 * FREQ_MUL; break;
-	/* 2:  50 kHz */
-	default:
-		spacing = 0.050 * FREQ_MUL; break;
-	};
-
-	/* Bottom of Band (MHz) */
-	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
-	/* 0: 87.5 - 108 MHz (USA, Europe) */
-	case 0:
-		band_bottom = 87.5 * FREQ_MUL; break;
-	/* 1: 76   - 108 MHz (Japan wide band) */
-	default:
-		band_bottom = 76   * FREQ_MUL; break;
-	/* 2: 76   -  90 MHz (Japan) */
-	case 2:
-		band_bottom = 76   * FREQ_MUL; break;
-	};
-
-	/* Chan = [ Freq (Mhz) - Bottom of Band (MHz) ] / Spacing (kHz) */
-	chan = (freq - band_bottom) / spacing;
-
-	return si470x_set_chan(radio, chan);
-}
-
-
-/*
- * si470x_set_seek - set seek
- */
-static int si470x_set_seek(struct si470x_device *radio,
-		unsigned int wrap_around, unsigned int seek_upward)
-{
-	int retval = 0;
-	unsigned long timeout;
-	bool timed_out = 0;
-
-	/* start seeking */
-	radio->registers[POWERCFG] |= POWERCFG_SEEK;
-	if (wrap_around == 1)
-		radio->registers[POWERCFG] &= ~POWERCFG_SKMODE;
-	else
-		radio->registers[POWERCFG] |= POWERCFG_SKMODE;
-	if (seek_upward == 1)
-		radio->registers[POWERCFG] |= POWERCFG_SEEKUP;
-	else
-		radio->registers[POWERCFG] &= ~POWERCFG_SEEKUP;
-	retval = si470x_set_register(radio, POWERCFG);
-	if (retval < 0)
-		goto done;
-
-	/* wait till seek operation has completed */
-	timeout = jiffies + msecs_to_jiffies(seek_timeout);
-	do {
-		retval = si470x_get_register(radio, STATUSRSSI);
-		if (retval < 0)
-			goto stop;
-		timed_out = time_after(jiffies, timeout);
-	} while (((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) &&
-		(!timed_out));
-	if ((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0)
-		printk(KERN_WARNING DRIVER_NAME ": seek does not complete\n");
-	if (radio->registers[STATUSRSSI] & STATUSRSSI_SF)
-		printk(KERN_WARNING DRIVER_NAME
-			": seek failed / band limit reached\n");
-	if (timed_out)
-		printk(KERN_WARNING DRIVER_NAME
-			": seek timed out after %u ms\n", seek_timeout);
-
-stop:
-	/* stop seeking */
-	radio->registers[POWERCFG] &= ~POWERCFG_SEEK;
-	retval = si470x_set_register(radio, POWERCFG);
-
-done:
-	/* try again, if timed out */
-	if ((retval == 0) && timed_out)
-		retval = -EAGAIN;
-
-	return retval;
-}
-
-
-/*
- * si470x_start - switch on radio
- */
-static int si470x_start(struct si470x_device *radio)
-{
-	int retval;
-
-	/* powercfg */
-	radio->registers[POWERCFG] =
-		POWERCFG_DMUTE | POWERCFG_ENABLE | POWERCFG_RDSM;
-	retval = si470x_set_register(radio, POWERCFG);
-	if (retval < 0)
-		goto done;
-
-	/* sysconfig 1 */
-	radio->registers[SYSCONFIG1] = SYSCONFIG1_DE;
-	retval = si470x_set_register(radio, SYSCONFIG1);
-	if (retval < 0)
-		goto done;
-
-	/* sysconfig 2 */
-	radio->registers[SYSCONFIG2] =
-		(0x3f  << 8) |				/* SEEKTH */
-		((band  << 6) & SYSCONFIG2_BAND)  |	/* BAND */
-		((space << 4) & SYSCONFIG2_SPACE) |	/* SPACE */
-		15;					/* VOLUME (max) */
-	retval = si470x_set_register(radio, SYSCONFIG2);
-	if (retval < 0)
-		goto done;
-
-	/* reset last channel */
-	retval = si470x_set_chan(radio,
-		radio->registers[CHANNEL] & CHANNEL_CHAN);
-
-done:
-	return retval;
-}
-
-
-/*
- * si470x_stop - switch off radio
- */
-static int si470x_stop(struct si470x_device *radio)
-{
-	int retval;
-
-	/* sysconfig 1 */
-	radio->registers[SYSCONFIG1] &= ~SYSCONFIG1_RDS;
-	retval = si470x_set_register(radio, SYSCONFIG1);
-	if (retval < 0)
-		goto done;
-
-	/* powercfg */
-	radio->registers[POWERCFG] &= ~POWERCFG_DMUTE;
-	/* POWERCFG_ENABLE has to automatically go low */
-	radio->registers[POWERCFG] |= POWERCFG_ENABLE |	POWERCFG_DISABLE;
-	retval = si470x_set_register(radio, POWERCFG);
-
-done:
-	return retval;
-}
-
-
-/*
- * si470x_rds_on - switch on rds reception
- */
-static int si470x_rds_on(struct si470x_device *radio)
-{
-	int retval;
-
-	/* sysconfig 1 */
-	mutex_lock(&radio->lock);
-	radio->registers[SYSCONFIG1] |= SYSCONFIG1_RDS;
-	retval = si470x_set_register(radio, SYSCONFIG1);
-	if (retval < 0)
-		radio->registers[SYSCONFIG1] &= ~SYSCONFIG1_RDS;
-	mutex_unlock(&radio->lock);
-
-	return retval;
-}
-
-
-
-/**************************************************************************
- * General Driver Functions - ENTIRE_REPORT
- **************************************************************************/
-
-/*
- * si470x_get_all_registers - read entire registers
- */
-static int si470x_get_all_registers(struct si470x_device *radio)
-{
-	unsigned char buf[ENTIRE_REPORT_SIZE];
-	int retval;
-	unsigned char regnr;
-
-	buf[0] = ENTIRE_REPORT;
-
-	retval = si470x_get_report(radio, (void *) &buf, sizeof(buf));
-
-	if (retval >= 0)
-		for (regnr = 0; regnr < RADIO_REGISTER_NUM; regnr++)
-			radio->registers[regnr] = get_unaligned_be16(
-				&buf[regnr * RADIO_REGISTER_SIZE + 1]);
-
-	return (retval < 0) ? -EINVAL : 0;
-}
-
-
-
-/**************************************************************************
- * General Driver Functions - LED_REPORT
- **************************************************************************/
-
-/*
- * si470x_set_led_state - sets the led state
- */
-static int si470x_set_led_state(struct si470x_device *radio,
-		unsigned char led_state)
-{
-	unsigned char buf[LED_REPORT_SIZE];
-	int retval;
-
-	buf[0] = LED_REPORT;
-	buf[1] = LED_COMMAND;
-	buf[2] = led_state;
-
-	retval = si470x_set_report(radio, (void *) &buf, sizeof(buf));
-
-	return (retval < 0) ? -EINVAL : 0;
-}
-
-
-
-/**************************************************************************
- * General Driver Functions - SCRATCH_REPORT
- **************************************************************************/
-
-/*
- * si470x_get_scratch_versions - gets the scratch page and version infos
- */
-static int si470x_get_scratch_page_versions(struct si470x_device *radio)
-{
-	unsigned char buf[SCRATCH_REPORT_SIZE];
-	int retval;
-
-	buf[0] = SCRATCH_REPORT;
-
-	retval = si470x_get_report(radio, (void *) &buf, sizeof(buf));
-
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME ": si470x_get_scratch: "
-			"si470x_get_report returned %d\n", retval);
-	else {
-		radio->software_version = buf[1];
-		radio->hardware_version = buf[2];
-	}
-
-	return (retval < 0) ? -EINVAL : 0;
-}
-
-
-
-/**************************************************************************
- * RDS Driver Functions
- **************************************************************************/
-
-/*
- * si470x_int_in_callback - rds callback and processing function
- *
- * TODO: do we need to use mutex locks in some sections?
- */
-static void si470x_int_in_callback(struct urb *urb)
-{
-	struct si470x_device *radio = urb->context;
-	unsigned char buf[RDS_REPORT_SIZE];
-	int retval;
-	unsigned char regnr;
-	unsigned char blocknum;
-	unsigned short bler; /* rds block errors */
-	unsigned short rds;
-	unsigned char tmpbuf[3];
-
-	if (urb->status) {
-		if (urb->status == -ENOENT ||
-				urb->status == -ECONNRESET ||
-				urb->status == -ESHUTDOWN) {
-			return;
-		} else {
-			printk(KERN_WARNING DRIVER_NAME
-			 ": non-zero urb status (%d)\n", urb->status);
-			goto resubmit; /* Maybe we can recover. */
-		}
-	}
-
-	/* safety checks */
-	if (radio->disconnected)
-		return;
-	if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0)
-		goto resubmit;
-
-	if (urb->actual_length > 0) {
-		/* Update RDS registers with URB data */
-		buf[0] = RDS_REPORT;
-		for (regnr = 0; regnr < RDS_REGISTER_NUM; regnr++)
-			radio->registers[STATUSRSSI + regnr] =
-			    get_unaligned_be16(&radio->int_in_buffer[
-				regnr * RADIO_REGISTER_SIZE + 1]);
-		/* get rds blocks */
-		if ((radio->registers[STATUSRSSI] & STATUSRSSI_RDSR) == 0) {
-			/* No RDS group ready, better luck next time */
-			goto resubmit;
-		}
-		if ((radio->registers[STATUSRSSI] & STATUSRSSI_RDSS) == 0) {
-			/* RDS decoder not synchronized */
-			goto resubmit;
-		}
-		for (blocknum = 0; blocknum < 4; blocknum++) {
-			switch (blocknum) {
-			default:
-				bler = (radio->registers[STATUSRSSI] &
-						STATUSRSSI_BLERA) >> 9;
-				rds = radio->registers[RDSA];
-				break;
-			case 1:
-				bler = (radio->registers[READCHAN] &
-						READCHAN_BLERB) >> 14;
-				rds = radio->registers[RDSB];
-				break;
-			case 2:
-				bler = (radio->registers[READCHAN] &
-						READCHAN_BLERC) >> 12;
-				rds = radio->registers[RDSC];
-				break;
-			case 3:
-				bler = (radio->registers[READCHAN] &
-						READCHAN_BLERD) >> 10;
-				rds = radio->registers[RDSD];
-				break;
-			};
-
-			/* Fill the V4L2 RDS buffer */
-			put_unaligned_le16(rds, &tmpbuf);
-			tmpbuf[2] = blocknum;		/* offset name */
-			tmpbuf[2] |= blocknum << 3;	/* received offset */
-			if (bler > max_rds_errors)
-				tmpbuf[2] |= 0x80; /* uncorrectable errors */
-			else if (bler > 0)
-				tmpbuf[2] |= 0x40; /* corrected error(s) */
-
-			/* copy RDS block to internal buffer */
-			memcpy(&radio->buffer[radio->wr_index], &tmpbuf, 3);
-			radio->wr_index += 3;
-
-			/* wrap write pointer */
-			if (radio->wr_index >= radio->buf_size)
-				radio->wr_index = 0;
-
-			/* check for overflow */
-			if (radio->wr_index == radio->rd_index) {
-				/* increment and wrap read pointer */
-				radio->rd_index += 3;
-				if (radio->rd_index >= radio->buf_size)
-					radio->rd_index = 0;
-			}
-		}
-		if (radio->wr_index != radio->rd_index)
-			wake_up_interruptible(&radio->read_queue);
-	}
-
-resubmit:
-	/* Resubmit if we're still running. */
-	if (radio->int_in_running && radio->usbdev) {
-		retval = usb_submit_urb(radio->int_in_urb, GFP_ATOMIC);
-		if (retval) {
-			printk(KERN_WARNING DRIVER_NAME
-			       ": resubmitting urb failed (%d)", retval);
-			radio->int_in_running = 0;
-		}
-	}
-}
-
-
-
-/**************************************************************************
- * File Operations Interface
- **************************************************************************/
-
-/*
- * si470x_fops_read - read RDS data
- */
-static ssize_t si470x_fops_read(struct file *file, char __user *buf,
-		size_t count, loff_t *ppos)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-	unsigned int block_count = 0;
-
-	/* switch on rds reception */
-	if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0) {
-		si470x_rds_on(radio);
-	}
-
-	/* block if no new data available */
-	while (radio->wr_index == radio->rd_index) {
-		if (file->f_flags & O_NONBLOCK) {
-			retval = -EWOULDBLOCK;
-			goto done;
-		}
-		if (wait_event_interruptible(radio->read_queue,
-			radio->wr_index != radio->rd_index) < 0) {
-			retval = -EINTR;
-			goto done;
-		}
-	}
-
-	/* calculate block count from byte count */
-	count /= 3;
-
-	/* copy RDS block out of internal buffer and to user buffer */
-	mutex_lock(&radio->lock);
-	while (block_count < count) {
-		if (radio->rd_index == radio->wr_index)
-			break;
-
-		/* always transfer rds complete blocks */
-		if (copy_to_user(buf, &radio->buffer[radio->rd_index], 3))
-			/* retval = -EFAULT; */
-			break;
-
-		/* increment and wrap read pointer */
-		radio->rd_index += 3;
-		if (radio->rd_index >= radio->buf_size)
-			radio->rd_index = 0;
-
-		/* increment counters */
-		block_count++;
-		buf += 3;
-		retval += 3;
-	}
-	mutex_unlock(&radio->lock);
-
-done:
-	return retval;
-}
-
-
-/*
- * si470x_fops_poll - poll RDS data
- */
-static unsigned int si470x_fops_poll(struct file *file,
-		struct poll_table_struct *pts)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-
-	/* switch on rds reception */
-	if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0) {
-		si470x_rds_on(radio);
-	}
-
-	poll_wait(file, &radio->read_queue, pts);
-
-	if (radio->rd_index != radio->wr_index)
-		retval = POLLIN | POLLRDNORM;
-
-	return retval;
-}
-
-
-/*
- * si470x_fops_open - file open
- */
-static int si470x_fops_open(struct file *file)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval;
-
-	lock_kernel();
-	radio->users++;
-
-	retval = usb_autopm_get_interface(radio->intf);
-	if (retval < 0) {
-		radio->users--;
-		retval = -EIO;
-		goto done;
-	}
-
-	if (radio->users == 1) {
-		/* start radio */
-		retval = si470x_start(radio);
-		if (retval < 0) {
-			usb_autopm_put_interface(radio->intf);
-			goto done;
-		}
-
-		/* initialize interrupt urb */
-		usb_fill_int_urb(radio->int_in_urb, radio->usbdev,
-			usb_rcvintpipe(radio->usbdev,
-			radio->int_in_endpoint->bEndpointAddress),
-			radio->int_in_buffer,
-			le16_to_cpu(radio->int_in_endpoint->wMaxPacketSize),
-			si470x_int_in_callback,
-			radio,
-			radio->int_in_endpoint->bInterval);
-
-		radio->int_in_running = 1;
-		mb();
-
-		retval = usb_submit_urb(radio->int_in_urb, GFP_KERNEL);
-		if (retval) {
-			printk(KERN_INFO DRIVER_NAME
-				 ": submitting int urb failed (%d)\n", retval);
-			radio->int_in_running = 0;
-			usb_autopm_put_interface(radio->intf);
-		}
-	}
-
-done:
-	unlock_kernel();
-	return retval;
-}
-
-
-/*
- * si470x_fops_release - file release
- */
-static int si470x_fops_release(struct file *file)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-
-	/* safety check */
-	if (!radio) {
-		retval = -ENODEV;
-		goto done;
-	}
-
-	mutex_lock(&radio->disconnect_lock);
-	radio->users--;
-	if (radio->users == 0) {
-		/* shutdown interrupt handler */
-		if (radio->int_in_running) {
-			radio->int_in_running = 0;
-		if (radio->int_in_urb)
-			usb_kill_urb(radio->int_in_urb);
-		}
-
-		if (radio->disconnected) {
-			video_unregister_device(radio->videodev);
-			kfree(radio->int_in_buffer);
-			kfree(radio->buffer);
-			kfree(radio);
-			goto unlock;
-		}
-
-		/* cancel read processes */
-		wake_up_interruptible(&radio->read_queue);
-
-		/* stop radio */
-		retval = si470x_stop(radio);
-		usb_autopm_put_interface(radio->intf);
-	}
-unlock:
-	mutex_unlock(&radio->disconnect_lock);
-done:
-	return retval;
-}
-
-
-/*
- * si470x_fops - file operations interface
- */
-static const struct v4l2_file_operations si470x_fops = {
-	.owner		= THIS_MODULE,
-	.read		= si470x_fops_read,
-	.poll		= si470x_fops_poll,
-	.ioctl		= video_ioctl2,
-	.open		= si470x_fops_open,
-	.release	= si470x_fops_release,
-};
-
-
-
-/**************************************************************************
- * Video4Linux Interface
- **************************************************************************/
-
-/*
- * si470x_vidioc_querycap - query device capabilities
- */
-static int si470x_vidioc_querycap(struct file *file, void *priv,
-		struct v4l2_capability *capability)
-{
-	struct si470x_device *radio = video_drvdata(file);
-
-	strlcpy(capability->driver, DRIVER_NAME, sizeof(capability->driver));
-	strlcpy(capability->card, DRIVER_CARD, sizeof(capability->card));
-	usb_make_path(radio->usbdev, capability->bus_info, sizeof(capability->bus_info));
-	capability->version = DRIVER_KERNEL_VERSION;
-	capability->capabilities = V4L2_CAP_HW_FREQ_SEEK |
-		V4L2_CAP_TUNER | V4L2_CAP_RADIO | V4L2_CAP_RDS_CAPTURE;
-
-	return 0;
-}
-
-
-/*
- * si470x_vidioc_queryctrl - enumerate control items
- */
-static int si470x_vidioc_queryctrl(struct file *file, void *priv,
-		struct v4l2_queryctrl *qc)
-{
-	int retval = -EINVAL;
-
-	/* abort if qc->id is below V4L2_CID_BASE */
-	if (qc->id < V4L2_CID_BASE)
-		goto done;
-
-	/* search video control */
-	switch (qc->id) {
-	case V4L2_CID_AUDIO_VOLUME:
-		return v4l2_ctrl_query_fill(qc, 0, 15, 1, 15);
-	case V4L2_CID_AUDIO_MUTE:
-		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
-	}
-
-	/* disable unsupported base controls */
-	/* to satisfy kradio and such apps */
-	if ((retval == -EINVAL) && (qc->id < V4L2_CID_LASTP1)) {
-		qc->flags = V4L2_CTRL_FLAG_DISABLED;
-		retval = 0;
-	}
-
-done:
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": query controls failed with %d\n", retval);
-	return retval;
-}
-
-
-/*
- * si470x_vidioc_g_ctrl - get the value of a control
- */
-static int si470x_vidioc_g_ctrl(struct file *file, void *priv,
-		struct v4l2_control *ctrl)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-
-	/* safety checks */
-	if (radio->disconnected) {
-		retval = -EIO;
-		goto done;
-	}
-
-	switch (ctrl->id) {
-	case V4L2_CID_AUDIO_VOLUME:
-		ctrl->value = radio->registers[SYSCONFIG2] &
-				SYSCONFIG2_VOLUME;
-		break;
-	case V4L2_CID_AUDIO_MUTE:
-		ctrl->value = ((radio->registers[POWERCFG] &
-				POWERCFG_DMUTE) == 0) ? 1 : 0;
-		break;
-	default:
-		retval = -EINVAL;
-	}
-
-done:
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": get control failed with %d\n", retval);
-	return retval;
-}
-
-
-/*
- * si470x_vidioc_s_ctrl - set the value of a control
- */
-static int si470x_vidioc_s_ctrl(struct file *file, void *priv,
-		struct v4l2_control *ctrl)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-
-	/* safety checks */
-	if (radio->disconnected) {
-		retval = -EIO;
-		goto done;
-	}
-
-	switch (ctrl->id) {
-	case V4L2_CID_AUDIO_VOLUME:
-		radio->registers[SYSCONFIG2] &= ~SYSCONFIG2_VOLUME;
-		radio->registers[SYSCONFIG2] |= ctrl->value;
-		retval = si470x_set_register(radio, SYSCONFIG2);
-		break;
-	case V4L2_CID_AUDIO_MUTE:
-		if (ctrl->value == 1)
-			radio->registers[POWERCFG] &= ~POWERCFG_DMUTE;
-		else
-			radio->registers[POWERCFG] |= POWERCFG_DMUTE;
-		retval = si470x_set_register(radio, POWERCFG);
-		break;
-	default:
-		retval = -EINVAL;
-	}
-
-done:
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": set control failed with %d\n", retval);
-	return retval;
-}
-
-
-/*
- * si470x_vidioc_g_audio - get audio attributes
- */
-static int si470x_vidioc_g_audio(struct file *file, void *priv,
-		struct v4l2_audio *audio)
-{
-	/* driver constants */
-	audio->index = 0;
-	strcpy(audio->name, "Radio");
-	audio->capability = V4L2_AUDCAP_STEREO;
-	audio->mode = 0;
-
-	return 0;
-}
-
-
-/*
- * si470x_vidioc_g_tuner - get tuner attributes
- */
-static int si470x_vidioc_g_tuner(struct file *file, void *priv,
-		struct v4l2_tuner *tuner)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-
-	/* safety checks */
-	if (radio->disconnected) {
-		retval = -EIO;
-		goto done;
-	}
-	if (tuner->index != 0) {
-		retval = -EINVAL;
-		goto done;
-	}
-
-	retval = si470x_get_register(radio, STATUSRSSI);
-	if (retval < 0)
-		goto done;
-
-	/* driver constants */
-	strcpy(tuner->name, "FM");
-	tuner->type = V4L2_TUNER_RADIO;
-	tuner->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO |
-			    V4L2_TUNER_CAP_RDS;
-
-	/* range limits */
-	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
-	/* 0: 87.5 - 108 MHz (USA, Europe, default) */
-	default:
-		tuner->rangelow  =  87.5 * FREQ_MUL;
-		tuner->rangehigh = 108   * FREQ_MUL;
-		break;
-	/* 1: 76   - 108 MHz (Japan wide band) */
-	case 1 :
-		tuner->rangelow  =  76   * FREQ_MUL;
-		tuner->rangehigh = 108   * FREQ_MUL;
-		break;
-	/* 2: 76   -  90 MHz (Japan) */
-	case 2 :
-		tuner->rangelow  =  76   * FREQ_MUL;
-		tuner->rangehigh =  90   * FREQ_MUL;
-		break;
-	};
-
-	/* stereo indicator == stereo (instead of mono) */
-	if ((radio->registers[STATUSRSSI] & STATUSRSSI_ST) == 0)
-		tuner->rxsubchans = V4L2_TUNER_SUB_MONO;
-	else
-		tuner->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
-	/* If there is a reliable method of detecting an RDS channel,
-	   then this code should check for that before setting this
-	   RDS subchannel. */
-	tuner->rxsubchans |= V4L2_TUNER_SUB_RDS;
-
-	/* mono/stereo selector */
-	if ((radio->registers[POWERCFG] & POWERCFG_MONO) == 0)
-		tuner->audmode = V4L2_TUNER_MODE_STEREO;
-	else
-		tuner->audmode = V4L2_TUNER_MODE_MONO;
-
-	/* min is worst, max is best; signal:0..0xffff; rssi: 0..0xff */
-	/* measured in units of dbµV in 1 db increments (max at ~75 dbµV) */
-	tuner->signal = (radio->registers[STATUSRSSI] & STATUSRSSI_RSSI);
-	/* the ideal factor is 0xffff/75 = 873,8 */
-	tuner->signal = (tuner->signal * 873) + (8 * tuner->signal / 10);
-
-	/* automatic frequency control: -1: freq to low, 1 freq to high */
-	/* AFCRL does only indicate that freq. differs, not if too low/high */
-	tuner->afc = (radio->registers[STATUSRSSI] & STATUSRSSI_AFCRL) ? 1 : 0;
-
-done:
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": get tuner failed with %d\n", retval);
-	return retval;
-}
-
-
-/*
- * si470x_vidioc_s_tuner - set tuner attributes
- */
-static int si470x_vidioc_s_tuner(struct file *file, void *priv,
-		struct v4l2_tuner *tuner)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = -EINVAL;
-
-	/* safety checks */
-	if (radio->disconnected) {
-		retval = -EIO;
-		goto done;
-	}
-	if (tuner->index != 0)
-		goto done;
-
-	/* mono/stereo selector */
-	switch (tuner->audmode) {
-	case V4L2_TUNER_MODE_MONO:
-		radio->registers[POWERCFG] |= POWERCFG_MONO;  /* force mono */
-		break;
-	case V4L2_TUNER_MODE_STEREO:
-		radio->registers[POWERCFG] &= ~POWERCFG_MONO; /* try stereo */
-		break;
-	default:
-		goto done;
-	}
-
-	retval = si470x_set_register(radio, POWERCFG);
-
-done:
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": set tuner failed with %d\n", retval);
-	return retval;
-}
-
-
-/*
- * si470x_vidioc_g_frequency - get tuner or modulator radio frequency
- */
-static int si470x_vidioc_g_frequency(struct file *file, void *priv,
-		struct v4l2_frequency *freq)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-
-	/* safety checks */
-	if (radio->disconnected) {
-		retval = -EIO;
-		goto done;
-	}
-	if (freq->tuner != 0) {
-		retval = -EINVAL;
-		goto done;
-	}
-
-	freq->type = V4L2_TUNER_RADIO;
-	retval = si470x_get_freq(radio, &freq->frequency);
-
-done:
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": get frequency failed with %d\n", retval);
-	return retval;
-}
-
-
-/*
- * si470x_vidioc_s_frequency - set tuner or modulator radio frequency
- */
-static int si470x_vidioc_s_frequency(struct file *file, void *priv,
-		struct v4l2_frequency *freq)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-
-	/* safety checks */
-	if (radio->disconnected) {
-		retval = -EIO;
-		goto done;
-	}
-	if (freq->tuner != 0) {
-		retval = -EINVAL;
-		goto done;
-	}
-
-	retval = si470x_set_freq(radio, freq->frequency);
-
-done:
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": set frequency failed with %d\n", retval);
-	return retval;
-}
-
-
-/*
- * si470x_vidioc_s_hw_freq_seek - set hardware frequency seek
- */
-static int si470x_vidioc_s_hw_freq_seek(struct file *file, void *priv,
-		struct v4l2_hw_freq_seek *seek)
-{
-	struct si470x_device *radio = video_drvdata(file);
-	int retval = 0;
-
-	/* safety checks */
-	if (radio->disconnected) {
-		retval = -EIO;
-		goto done;
-	}
-	if (seek->tuner != 0) {
-		retval = -EINVAL;
-		goto done;
-	}
-
-	retval = si470x_set_seek(radio, seek->wrap_around, seek->seek_upward);
-
-done:
-	if (retval < 0)
-		printk(KERN_WARNING DRIVER_NAME
-			": set hardware frequency seek failed with %d\n",
-			retval);
-	return retval;
-}
-
-
-/*
- * si470x_ioctl_ops - video device ioctl operations
- */
-static const struct v4l2_ioctl_ops si470x_ioctl_ops = {
-	.vidioc_querycap	= si470x_vidioc_querycap,
-	.vidioc_queryctrl	= si470x_vidioc_queryctrl,
-	.vidioc_g_ctrl		= si470x_vidioc_g_ctrl,
-	.vidioc_s_ctrl		= si470x_vidioc_s_ctrl,
-	.vidioc_g_audio		= si470x_vidioc_g_audio,
-	.vidioc_g_tuner		= si470x_vidioc_g_tuner,
-	.vidioc_s_tuner		= si470x_vidioc_s_tuner,
-	.vidioc_g_frequency	= si470x_vidioc_g_frequency,
-	.vidioc_s_frequency	= si470x_vidioc_s_frequency,
-	.vidioc_s_hw_freq_seek	= si470x_vidioc_s_hw_freq_seek,
-};
-
-
-/*
- * si470x_viddev_template - video device interface
- */
-static struct video_device si470x_viddev_template = {
-	.fops			= &si470x_fops,
-	.name			= DRIVER_NAME,
-	.release		= video_device_release,
-	.ioctl_ops		= &si470x_ioctl_ops,
-};
-
-
-
-/**************************************************************************
- * USB Interface
- **************************************************************************/
-
-/*
- * si470x_usb_driver_probe - probe for the device
- */
-static int si470x_usb_driver_probe(struct usb_interface *intf,
-		const struct usb_device_id *id)
-{
-	struct si470x_device *radio;
-	struct usb_host_interface *iface_desc;
-	struct usb_endpoint_descriptor *endpoint;
-	int i, int_end_size, retval = 0;
-
-	/* private data allocation and initialization */
-	radio = kzalloc(sizeof(struct si470x_device), GFP_KERNEL);
-	if (!radio) {
-		retval = -ENOMEM;
-		goto err_initial;
-	}
-	radio->users = 0;
-	radio->disconnected = 0;
-	radio->usbdev = interface_to_usbdev(intf);
-	radio->intf = intf;
-	mutex_init(&radio->disconnect_lock);
-	mutex_init(&radio->lock);
-
-	iface_desc = intf->cur_altsetting;
-
-	/* Set up interrupt endpoint information. */
-	for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
-		endpoint = &iface_desc->endpoint[i].desc;
-		if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
-		 USB_DIR_IN) && ((endpoint->bmAttributes &
-		 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT))
-			radio->int_in_endpoint = endpoint;
-	}
-	if (!radio->int_in_endpoint) {
-		printk(KERN_INFO DRIVER_NAME
-			": could not find interrupt in endpoint\n");
-		retval = -EIO;
-		goto err_radio;
-	}
-
-	int_end_size = le16_to_cpu(radio->int_in_endpoint->wMaxPacketSize);
-
-	radio->int_in_buffer = kmalloc(int_end_size, GFP_KERNEL);
-	if (!radio->int_in_buffer) {
-		printk(KERN_INFO DRIVER_NAME
-			"could not allocate int_in_buffer");
-		retval = -ENOMEM;
-		goto err_radio;
-	}
-
-	radio->int_in_urb = usb_alloc_urb(0, GFP_KERNEL);
-	if (!radio->int_in_urb) {
-		printk(KERN_INFO DRIVER_NAME "could not allocate int_in_urb");
-		retval = -ENOMEM;
-		goto err_intbuffer;
-	}
-
-	/* video device allocation and initialization */
-	radio->videodev = video_device_alloc();
-	if (!radio->videodev) {
-		retval = -ENOMEM;
-		goto err_intbuffer;
-	}
-	memcpy(radio->videodev, &si470x_viddev_template,
-			sizeof(si470x_viddev_template));
-	video_set_drvdata(radio->videodev, radio);
-
-	/* show some infos about the specific si470x device */
-	if (si470x_get_all_registers(radio) < 0) {
-		retval = -EIO;
-		goto err_video;
-	}
-	printk(KERN_INFO DRIVER_NAME ": DeviceID=0x%4.4hx ChipID=0x%4.4hx\n",
-			radio->registers[DEVICEID], radio->registers[CHIPID]);
-
-	/* get software and hardware versions */
-	if (si470x_get_scratch_page_versions(radio) < 0) {
-		retval = -EIO;
-		goto err_video;
-	}
-	printk(KERN_INFO DRIVER_NAME
-			": software version %d, hardware version %d\n",
-			radio->software_version, radio->hardware_version);
-
-	/* check if device and firmware is current */
-	if ((radio->registers[CHIPID] & CHIPID_FIRMWARE)
-			< RADIO_SW_VERSION_CURRENT) {
-		printk(KERN_WARNING DRIVER_NAME
-			": This driver is known to work with "
-			"firmware version %hu,\n", RADIO_SW_VERSION_CURRENT);
-		printk(KERN_WARNING DRIVER_NAME
-			": but the device has firmware version %hu.\n",
-			radio->registers[CHIPID] & CHIPID_FIRMWARE);
-		printk(KERN_WARNING DRIVER_NAME
-			": If you have some trouble using this driver,\n");
-		printk(KERN_WARNING DRIVER_NAME
-			": please report to V4L ML at "
-			"linux-media@vger.kernel.org\n");
-	}
-
-	/* set initial frequency */
-	si470x_set_freq(radio, 87.5 * FREQ_MUL); /* available in all regions */
-
-	/* set led to connect state */
-	si470x_set_led_state(radio, BLINK_GREEN_LED);
-
-	/* rds buffer allocation */
-	radio->buf_size = rds_buf * 3;
-	radio->buffer = kmalloc(radio->buf_size, GFP_KERNEL);
-	if (!radio->buffer) {
-		retval = -EIO;
-		goto err_video;
-	}
-
-	/* rds buffer configuration */
-	radio->wr_index = 0;
-	radio->rd_index = 0;
-	init_waitqueue_head(&radio->read_queue);
-
-	/* register video device */
-	retval = video_register_device(radio->videodev, VFL_TYPE_RADIO, radio_nr);
-	if (retval) {
-		printk(KERN_WARNING DRIVER_NAME
-				": Could not register video device\n");
-		goto err_all;
-	}
-	usb_set_intfdata(intf, radio);
-
-	return 0;
-err_all:
-	kfree(radio->buffer);
-err_video:
-	video_device_release(radio->videodev);
-err_intbuffer:
-	kfree(radio->int_in_buffer);
-err_radio:
-	kfree(radio);
-err_initial:
-	return retval;
-}
-
-
-/*
- * si470x_usb_driver_suspend - suspend the device
- */
-static int si470x_usb_driver_suspend(struct usb_interface *intf,
-		pm_message_t message)
-{
-	printk(KERN_INFO DRIVER_NAME ": suspending now...\n");
-
-	return 0;
-}
-
-
-/*
- * si470x_usb_driver_resume - resume the device
- */
-static int si470x_usb_driver_resume(struct usb_interface *intf)
-{
-	printk(KERN_INFO DRIVER_NAME ": resuming now...\n");
-
-	return 0;
-}
-
-
-/*
- * si470x_usb_driver_disconnect - disconnect the device
- */
-static void si470x_usb_driver_disconnect(struct usb_interface *intf)
-{
-	struct si470x_device *radio = usb_get_intfdata(intf);
-
-	mutex_lock(&radio->disconnect_lock);
-	radio->disconnected = 1;
-	usb_set_intfdata(intf, NULL);
-	if (radio->users == 0) {
-		/* set led to disconnect state */
-		si470x_set_led_state(radio, BLINK_ORANGE_LED);
-
-		/* Free data structures. */
-		usb_free_urb(radio->int_in_urb);
-
-		kfree(radio->int_in_buffer);
-		video_unregister_device(radio->videodev);
-		kfree(radio->buffer);
-		kfree(radio);
-	}
-	mutex_unlock(&radio->disconnect_lock);
-}
-
-
-/*
- * si470x_usb_driver - usb driver interface
- */
-static struct usb_driver si470x_usb_driver = {
-	.name			= DRIVER_NAME,
-	.probe			= si470x_usb_driver_probe,
-	.disconnect		= si470x_usb_driver_disconnect,
-	.suspend		= si470x_usb_driver_suspend,
-	.resume			= si470x_usb_driver_resume,
-	.id_table		= si470x_usb_driver_id_table,
-	.supports_autosuspend	= 1,
-};
-
-
-
-/**************************************************************************
- * Module Interface
- **************************************************************************/
-
-/*
- * si470x_module_init - module init
- */
-static int __init si470x_module_init(void)
-{
-	printk(KERN_INFO DRIVER_DESC ", Version " DRIVER_VERSION "\n");
-	return usb_register(&si470x_usb_driver);
-}
-
-
-/*
- * si470x_module_exit - module exit
- */
-static void __exit si470x_module_exit(void)
-{
-	usb_deregister(&si470x_usb_driver);
-}
-
-
-module_init(si470x_module_init);
-module_exit(si470x_module_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR(DRIVER_AUTHOR);
-MODULE_DESCRIPTION(DRIVER_DESC);
-MODULE_VERSION(DRIVER_VERSION);
diff --git a/linux/drivers/media/radio/si470x/Kconfig b/linux/drivers/media/radio/si470x/Kconfig
new file mode 100644
index 000000000..a466654ee
--- /dev/null
+++ b/linux/drivers/media/radio/si470x/Kconfig
@@ -0,0 +1,37 @@
+config USB_SI470X
+	tristate "Silicon Labs Si470x FM Radio Receiver support with USB"
+	depends on USB && RADIO_SI470X
+	---help---
+	  This is a driver for USB devices with the Silicon Labs SI470x
+	  chip. Currently these devices are known to work:
+	  - 10c4:818a: Silicon Labs USB FM Radio Reference Design
+	  - 06e1:a155: ADS/Tech FM Radio Receiver (formerly Instant FM Music)
+	  - 1b80:d700: KWorld USB FM Radio SnapMusic Mobile 700 (FM700)
+	  - 10c5:819a: Sanei Electric FM USB Radio (aka DealExtreme.com PCear)
+
+	  Sound is provided by the ALSA USB Audio/MIDI driver. Therefore
+	  if you don't want to use the device solely for RDS receiving,
+	  it is recommended to also select SND_USB_AUDIO.
+
+	  Please have a look at the documentation, especially on how
+	  to redirect the audio stream from the radio to your sound device:
+	  Documentation/video4linux/si470x.txt
+
+	  Say Y here if you want to connect this type of radio to your
+	  computer's USB port.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-usb-si470x.
+
+config I2C_SI470X
+	tristate "Silicon Labs Si470x FM Radio Receiver support with I2C"
+	depends on I2C && RADIO_SI470X && !USB_SI470X
+	---help---
+	  This is a driver for I2C devices with the Silicon Labs SI470x
+	  chip.
+
+	  Say Y here if you want to connect this type of radio to your
+	  computer's I2C port.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called radio-i2c-si470x.
diff --git a/linux/drivers/media/radio/si470x/Makefile b/linux/drivers/media/radio/si470x/Makefile
new file mode 100644
index 000000000..06964816c
--- /dev/null
+++ b/linux/drivers/media/radio/si470x/Makefile
@@ -0,0 +1,9 @@
+#
+# Makefile for radios with Silicon Labs Si470x FM Radio Receivers
+#
+
+radio-usb-si470x-objs	:= radio-si470x-usb.o radio-si470x-common.o
+radio-i2c-si470x-objs	:= radio-si470x-i2c.o radio-si470x-common.o
+
+obj-$(CONFIG_USB_SI470X) += radio-usb-si470x.o
+obj-$(CONFIG_I2C_SI470X) += radio-i2c-si470x.o
diff --git a/linux/drivers/media/radio/si470x/radio-si470x-common.c b/linux/drivers/media/radio/si470x/radio-si470x-common.c
new file mode 100644
index 000000000..f33315f2c
--- /dev/null
+++ b/linux/drivers/media/radio/si470x/radio-si470x-common.c
@@ -0,0 +1,798 @@
+/*
+ *  drivers/media/radio/si470x/radio-si470x-common.c
+ *
+ *  Driver for radios with Silicon Labs Si470x FM Radio Receivers
+ *
+ *  Copyright (c) 2009 Tobias Lorenz <tobias.lorenz@gmx.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+/*
+ * History:
+ * 2008-01-12	Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		Version 1.0.0
+ *		- First working version
+ * 2008-01-13	Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		Version 1.0.1
+ *		- Improved error handling, every function now returns errno
+ *		- Improved multi user access (start/mute/stop)
+ *		- Channel doesn't get lost anymore after start/mute/stop
+ *		- RDS support added (polling mode via interrupt EP 1)
+ *		- marked default module parameters with *value*
+ *		- switched from bit structs to bit masks
+ *		- header file cleaned and integrated
+ * 2008-01-14	Tobias Lorenz <tobias.lorenz@gmx.net>
+ * 		Version 1.0.2
+ * 		- hex values are now lower case
+ * 		- commented USB ID for ADS/Tech moved on todo list
+ * 		- blacklisted si470x in hid-quirks.c
+ * 		- rds buffer handling functions integrated into *_work, *_read
+ * 		- rds_command in si470x_poll exchanged against simple retval
+ * 		- check for firmware version 15
+ * 		- code order and prototypes still remain the same
+ * 		- spacing and bottom of band codes remain the same
+ * 2008-01-16	Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		Version 1.0.3
+ * 		- code reordered to avoid function prototypes
+ *		- switch/case defaults are now more user-friendly
+ *		- unified comment style
+ *		- applied all checkpatch.pl v1.12 suggestions
+ *		  except the warning about the too long lines with bit comments
+ *		- renamed FMRADIO to RADIO to cut line length (checkpatch.pl)
+ * 2008-01-22	Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		Version 1.0.4
+ *		- avoid poss. locking when doing copy_to_user which may sleep
+ *		- RDS is automatically activated on read now
+ *		- code cleaned of unnecessary rds_commands
+ *		- USB Vendor/Product ID for ADS/Tech FM Radio Receiver verified
+ *		  (thanks to Guillaume RAMOUSSE)
+ * 2008-01-27	Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		Version 1.0.5
+ *		- number of seek_retries changed to tune_timeout
+ *		- fixed problem with incomplete tune operations by own buffers
+ *		- optimization of variables and printf types
+ *		- improved error logging
+ * 2008-01-31	Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		Oliver Neukum <oliver@neukum.org>
+ *		Version 1.0.6
+ *		- fixed coverity checker warnings in *_usb_driver_disconnect
+ *		- probe()/open() race by correct ordering in probe()
+ *		- DMA coherency rules by separate allocation of all buffers
+ *		- use of endianness macros
+ *		- abuse of spinlock, replaced by mutex
+ *		- racy handling of timer in disconnect,
+ *		  replaced by delayed_work
+ *		- racy interruptible_sleep_on(),
+ *		  replaced with wait_event_interruptible()
+ *		- handle signals in read()
+ * 2008-02-08	Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		Oliver Neukum <oliver@neukum.org>
+ *		Version 1.0.7
+ *		- usb autosuspend support
+ *		- unplugging fixed
+ * 2008-05-07	Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		Version 1.0.8
+ *		- hardware frequency seek support
+ *		- afc indication
+ *		- more safety checks, let si470x_get_freq return errno
+ *		- vidioc behavior corrected according to v4l2 spec
+ * 2008-10-20	Alexey Klimov <klimov.linux@gmail.com>
+ * 		- add support for KWorld USB FM Radio FM700
+ * 		- blacklisted KWorld radio in hid-core.c and hid-ids.h
+ * 2008-12-03	Mark Lord <mlord@pobox.com>
+ *		- add support for DealExtreme USB Radio
+ * 2009-01-31	Bob Ross <pigiron@gmx.com>
+ *		- correction of stereo detection/setting
+ *		- correction of signal strength indicator scaling
+ * 2009-01-31	Rick Bronson <rick@efn.org>
+ *		Tobias Lorenz <tobias.lorenz@gmx.net>
+ *		- add LED status output
+ *		- get HW/SW version from scratchpad
+ * 2009-06-16   Edouard Lafargue <edouard@lafargue.name>
+ *		Version 1.0.10
+ *		- add support for interrupt mode for RDS endpoint,
+ *                instead of polling.
+ *                Improves RDS reception significantly
+ */
+
+
+/* kernel includes */
+#include "radio-si470x.h"
+
+
+
+/**************************************************************************
+ * Module Parameters
+ **************************************************************************/
+
+/* Spacing (kHz) */
+/* 0: 200 kHz (USA, Australia) */
+/* 1: 100 kHz (Europe, Japan) */
+/* 2:  50 kHz */
+static unsigned short space = 2;
+module_param(space, ushort, 0444);
+MODULE_PARM_DESC(space, "Spacing: 0=200kHz 1=100kHz *2=50kHz*");
+
+/* Bottom of Band (MHz) */
+/* 0: 87.5 - 108 MHz (USA, Europe)*/
+/* 1: 76   - 108 MHz (Japan wide band) */
+/* 2: 76   -  90 MHz (Japan) */
+static unsigned short band = 1;
+module_param(band, ushort, 0444);
+MODULE_PARM_DESC(band, "Band: 0=87.5..108MHz *1=76..108MHz* 2=76..90MHz");
+
+/* De-emphasis */
+/* 0: 75 us (USA) */
+/* 1: 50 us (Europe, Australia, Japan) */
+static unsigned short de = 1;
+module_param(de, ushort, 0444);
+MODULE_PARM_DESC(de, "De-emphasis: 0=75us *1=50us*");
+
+/* Tune timeout */
+static unsigned int tune_timeout = 3000;
+module_param(tune_timeout, uint, 0644);
+MODULE_PARM_DESC(tune_timeout, "Tune timeout: *3000*");
+
+/* Seek timeout */
+static unsigned int seek_timeout = 5000;
+module_param(seek_timeout, uint, 0644);
+MODULE_PARM_DESC(seek_timeout, "Seek timeout: *5000*");
+
+
+
+/**************************************************************************
+ * Generic Functions
+ **************************************************************************/
+
+/*
+ * si470x_set_chan - set the channel
+ */
+static int si470x_set_chan(struct si470x_device *radio, unsigned short chan)
+{
+	int retval;
+	unsigned long timeout;
+	bool timed_out = 0;
+
+	/* start tuning */
+	radio->registers[CHANNEL] &= ~CHANNEL_CHAN;
+	radio->registers[CHANNEL] |= CHANNEL_TUNE | chan;
+	retval = si470x_set_register(radio, CHANNEL);
+	if (retval < 0)
+		goto done;
+
+	/* wait till tune operation has completed */
+	timeout = jiffies + msecs_to_jiffies(tune_timeout);
+	do {
+		retval = si470x_get_register(radio, STATUSRSSI);
+		if (retval < 0)
+			goto stop;
+		timed_out = time_after(jiffies, timeout);
+	} while (((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) &&
+		(!timed_out));
+	if ((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0)
+		dev_warn(&radio->videodev->dev, "tune does not complete\n");
+	if (timed_out)
+		dev_warn(&radio->videodev->dev,
+			"tune timed out after %u ms\n", tune_timeout);
+
+stop:
+	/* stop tuning */
+	radio->registers[CHANNEL] &= ~CHANNEL_TUNE;
+	retval = si470x_set_register(radio, CHANNEL);
+
+done:
+	return retval;
+}
+
+
+/*
+ * si470x_get_freq - get the frequency
+ */
+static int si470x_get_freq(struct si470x_device *radio, unsigned int *freq)
+{
+	unsigned int spacing, band_bottom;
+	unsigned short chan;
+	int retval;
+
+	/* Spacing (kHz) */
+	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_SPACE) >> 4) {
+	/* 0: 200 kHz (USA, Australia) */
+	case 0:
+		spacing = 0.200 * FREQ_MUL; break;
+	/* 1: 100 kHz (Europe, Japan) */
+	case 1:
+		spacing = 0.100 * FREQ_MUL; break;
+	/* 2:  50 kHz */
+	default:
+		spacing = 0.050 * FREQ_MUL; break;
+	};
+
+	/* Bottom of Band (MHz) */
+	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
+	/* 0: 87.5 - 108 MHz (USA, Europe) */
+	case 0:
+		band_bottom = 87.5 * FREQ_MUL; break;
+	/* 1: 76   - 108 MHz (Japan wide band) */
+	default:
+		band_bottom = 76   * FREQ_MUL; break;
+	/* 2: 76   -  90 MHz (Japan) */
+	case 2:
+		band_bottom = 76   * FREQ_MUL; break;
+	};
+
+	/* read channel */
+	retval = si470x_get_register(radio, READCHAN);
+	chan = radio->registers[READCHAN] & READCHAN_READCHAN;
+
+	/* Frequency (MHz) = Spacing (kHz) x Channel + Bottom of Band (MHz) */
+	*freq = chan * spacing + band_bottom;
+
+	return retval;
+}
+
+
+/*
+ * si470x_set_freq - set the frequency
+ */
+int si470x_set_freq(struct si470x_device *radio, unsigned int freq)
+{
+	unsigned int spacing, band_bottom;
+	unsigned short chan;
+
+	/* Spacing (kHz) */
+	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_SPACE) >> 4) {
+	/* 0: 200 kHz (USA, Australia) */
+	case 0:
+		spacing = 0.200 * FREQ_MUL; break;
+	/* 1: 100 kHz (Europe, Japan) */
+	case 1:
+		spacing = 0.100 * FREQ_MUL; break;
+	/* 2:  50 kHz */
+	default:
+		spacing = 0.050 * FREQ_MUL; break;
+	};
+
+	/* Bottom of Band (MHz) */
+	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
+	/* 0: 87.5 - 108 MHz (USA, Europe) */
+	case 0:
+		band_bottom = 87.5 * FREQ_MUL; break;
+	/* 1: 76   - 108 MHz (Japan wide band) */
+	default:
+		band_bottom = 76   * FREQ_MUL; break;
+	/* 2: 76   -  90 MHz (Japan) */
+	case 2:
+		band_bottom = 76   * FREQ_MUL; break;
+	};
+
+	/* Chan = [ Freq (Mhz) - Bottom of Band (MHz) ] / Spacing (kHz) */
+	chan = (freq - band_bottom) / spacing;
+
+	return si470x_set_chan(radio, chan);
+}
+
+
+/*
+ * si470x_set_seek - set seek
+ */
+static int si470x_set_seek(struct si470x_device *radio,
+		unsigned int wrap_around, unsigned int seek_upward)
+{
+	int retval = 0;
+	unsigned long timeout;
+	bool timed_out = 0;
+
+	/* start seeking */
+	radio->registers[POWERCFG] |= POWERCFG_SEEK;
+	if (wrap_around == 1)
+		radio->registers[POWERCFG] &= ~POWERCFG_SKMODE;
+	else
+		radio->registers[POWERCFG] |= POWERCFG_SKMODE;
+	if (seek_upward == 1)
+		radio->registers[POWERCFG] |= POWERCFG_SEEKUP;
+	else
+		radio->registers[POWERCFG] &= ~POWERCFG_SEEKUP;
+	retval = si470x_set_register(radio, POWERCFG);
+	if (retval < 0)
+		goto done;
+
+	/* wait till seek operation has completed */
+	timeout = jiffies + msecs_to_jiffies(seek_timeout);
+	do {
+		retval = si470x_get_register(radio, STATUSRSSI);
+		if (retval < 0)
+			goto stop;
+		timed_out = time_after(jiffies, timeout);
+	} while (((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0) &&
+		(!timed_out));
+	if ((radio->registers[STATUSRSSI] & STATUSRSSI_STC) == 0)
+		dev_warn(&radio->videodev->dev, "seek does not complete\n");
+	if (radio->registers[STATUSRSSI] & STATUSRSSI_SF)
+		dev_warn(&radio->videodev->dev,
+			"seek failed / band limit reached\n");
+	if (timed_out)
+		dev_warn(&radio->videodev->dev,
+			"seek timed out after %u ms\n", seek_timeout);
+
+stop:
+	/* stop seeking */
+	radio->registers[POWERCFG] &= ~POWERCFG_SEEK;
+	retval = si470x_set_register(radio, POWERCFG);
+
+done:
+	/* try again, if timed out */
+	if ((retval == 0) && timed_out)
+		retval = -EAGAIN;
+
+	return retval;
+}
+
+
+/*
+ * si470x_start - switch on radio
+ */
+int si470x_start(struct si470x_device *radio)
+{
+	int retval;
+
+	/* powercfg */
+	radio->registers[POWERCFG] =
+		POWERCFG_DMUTE | POWERCFG_ENABLE | POWERCFG_RDSM;
+	retval = si470x_set_register(radio, POWERCFG);
+	if (retval < 0)
+		goto done;
+
+	/* sysconfig 1 */
+	radio->registers[SYSCONFIG1] = SYSCONFIG1_DE;
+	retval = si470x_set_register(radio, SYSCONFIG1);
+	if (retval < 0)
+		goto done;
+
+	/* sysconfig 2 */
+	radio->registers[SYSCONFIG2] =
+		(0x3f  << 8) |				/* SEEKTH */
+		((band  << 6) & SYSCONFIG2_BAND)  |	/* BAND */
+		((space << 4) & SYSCONFIG2_SPACE) |	/* SPACE */
+		15;					/* VOLUME (max) */
+	retval = si470x_set_register(radio, SYSCONFIG2);
+	if (retval < 0)
+		goto done;
+
+	/* reset last channel */
+	retval = si470x_set_chan(radio,
+		radio->registers[CHANNEL] & CHANNEL_CHAN);
+
+done:
+	return retval;
+}
+
+
+/*
+ * si470x_stop - switch off radio
+ */
+int si470x_stop(struct si470x_device *radio)
+{
+	int retval;
+
+	/* sysconfig 1 */
+	radio->registers[SYSCONFIG1] &= ~SYSCONFIG1_RDS;
+	retval = si470x_set_register(radio, SYSCONFIG1);
+	if (retval < 0)
+		goto done;
+
+	/* powercfg */
+	radio->registers[POWERCFG] &= ~POWERCFG_DMUTE;
+	/* POWERCFG_ENABLE has to automatically go low */
+	radio->registers[POWERCFG] |= POWERCFG_ENABLE |	POWERCFG_DISABLE;
+	retval = si470x_set_register(radio, POWERCFG);
+
+done:
+	return retval;
+}
+
+
+/*
+ * si470x_rds_on - switch on rds reception
+ */
+int si470x_rds_on(struct si470x_device *radio)
+{
+	int retval;
+
+	/* sysconfig 1 */
+	mutex_lock(&radio->lock);
+	radio->registers[SYSCONFIG1] |= SYSCONFIG1_RDS;
+	retval = si470x_set_register(radio, SYSCONFIG1);
+	if (retval < 0)
+		radio->registers[SYSCONFIG1] &= ~SYSCONFIG1_RDS;
+	mutex_unlock(&radio->lock);
+
+	return retval;
+}
+
+
+
+/**************************************************************************
+ * Video4Linux Interface
+ **************************************************************************/
+
+/*
+ * si470x_vidioc_queryctrl - enumerate control items
+ */
+static int si470x_vidioc_queryctrl(struct file *file, void *priv,
+		struct v4l2_queryctrl *qc)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = -EINVAL;
+
+	/* abort if qc->id is below V4L2_CID_BASE */
+	if (qc->id < V4L2_CID_BASE)
+		goto done;
+
+	/* search video control */
+	switch (qc->id) {
+	case V4L2_CID_AUDIO_VOLUME:
+		return v4l2_ctrl_query_fill(qc, 0, 15, 1, 15);
+	case V4L2_CID_AUDIO_MUTE:
+		return v4l2_ctrl_query_fill(qc, 0, 1, 1, 1);
+	}
+
+	/* disable unsupported base controls */
+	/* to satisfy kradio and such apps */
+	if ((retval == -EINVAL) && (qc->id < V4L2_CID_LASTP1)) {
+		qc->flags = V4L2_CTRL_FLAG_DISABLED;
+		retval = 0;
+	}
+
+done:
+	if (retval < 0)
+		dev_warn(&radio->videodev->dev,
+			"query controls failed with %d\n", retval);
+	return retval;
+}
+
+
+/*
+ * si470x_vidioc_g_ctrl - get the value of a control
+ */
+static int si470x_vidioc_g_ctrl(struct file *file, void *priv,
+		struct v4l2_control *ctrl)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* safety checks */
+	retval = si470x_disconnect_check(radio);
+	if (retval)
+		goto done;
+
+	switch (ctrl->id) {
+	case V4L2_CID_AUDIO_VOLUME:
+		ctrl->value = radio->registers[SYSCONFIG2] &
+				SYSCONFIG2_VOLUME;
+		break;
+	case V4L2_CID_AUDIO_MUTE:
+		ctrl->value = ((radio->registers[POWERCFG] &
+				POWERCFG_DMUTE) == 0) ? 1 : 0;
+		break;
+	default:
+		retval = -EINVAL;
+	}
+
+done:
+	if (retval < 0)
+		dev_warn(&radio->videodev->dev,
+			"get control failed with %d\n", retval);
+	return retval;
+}
+
+
+/*
+ * si470x_vidioc_s_ctrl - set the value of a control
+ */
+static int si470x_vidioc_s_ctrl(struct file *file, void *priv,
+		struct v4l2_control *ctrl)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* safety checks */
+	retval = si470x_disconnect_check(radio);
+	if (retval)
+		goto done;
+
+	switch (ctrl->id) {
+	case V4L2_CID_AUDIO_VOLUME:
+		radio->registers[SYSCONFIG2] &= ~SYSCONFIG2_VOLUME;
+		radio->registers[SYSCONFIG2] |= ctrl->value;
+		retval = si470x_set_register(radio, SYSCONFIG2);
+		break;
+	case V4L2_CID_AUDIO_MUTE:
+		if (ctrl->value == 1)
+			radio->registers[POWERCFG] &= ~POWERCFG_DMUTE;
+		else
+			radio->registers[POWERCFG] |= POWERCFG_DMUTE;
+		retval = si470x_set_register(radio, POWERCFG);
+		break;
+	default:
+		retval = -EINVAL;
+	}
+
+done:
+	if (retval < 0)
+		dev_warn(&radio->videodev->dev,
+			"set control failed with %d\n", retval);
+	return retval;
+}
+
+
+/*
+ * si470x_vidioc_g_audio - get audio attributes
+ */
+static int si470x_vidioc_g_audio(struct file *file, void *priv,
+		struct v4l2_audio *audio)
+{
+	/* driver constants */
+	audio->index = 0;
+	strcpy(audio->name, "Radio");
+	audio->capability = V4L2_AUDCAP_STEREO;
+	audio->mode = 0;
+
+	return 0;
+}
+
+
+/*
+ * si470x_vidioc_g_tuner - get tuner attributes
+ */
+static int si470x_vidioc_g_tuner(struct file *file, void *priv,
+		struct v4l2_tuner *tuner)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* safety checks */
+	retval = si470x_disconnect_check(radio);
+	if (retval)
+		goto done;
+
+	if (tuner->index != 0) {
+		retval = -EINVAL;
+		goto done;
+	}
+
+	retval = si470x_get_register(radio, STATUSRSSI);
+	if (retval < 0)
+		goto done;
+
+	/* driver constants */
+	strcpy(tuner->name, "FM");
+	tuner->type = V4L2_TUNER_RADIO;
+#if defined(CONFIG_USB_SI470X) || defined(CONFIG_USB_SI470X_MODULE)
+	tuner->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO |
+			    V4L2_TUNER_CAP_RDS;
+#else
+	tuner->capability = V4L2_TUNER_CAP_LOW | V4L2_TUNER_CAP_STEREO;
+#endif
+
+	/* range limits */
+	switch ((radio->registers[SYSCONFIG2] & SYSCONFIG2_BAND) >> 6) {
+	/* 0: 87.5 - 108 MHz (USA, Europe, default) */
+	default:
+		tuner->rangelow  =  87.5 * FREQ_MUL;
+		tuner->rangehigh = 108   * FREQ_MUL;
+		break;
+	/* 1: 76   - 108 MHz (Japan wide band) */
+	case 1:
+		tuner->rangelow  =  76   * FREQ_MUL;
+		tuner->rangehigh = 108   * FREQ_MUL;
+		break;
+	/* 2: 76   -  90 MHz (Japan) */
+	case 2:
+		tuner->rangelow  =  76   * FREQ_MUL;
+		tuner->rangehigh =  90   * FREQ_MUL;
+		break;
+	};
+
+	/* stereo indicator == stereo (instead of mono) */
+	if ((radio->registers[STATUSRSSI] & STATUSRSSI_ST) == 0)
+		tuner->rxsubchans = V4L2_TUNER_SUB_MONO;
+	else
+		tuner->rxsubchans = V4L2_TUNER_SUB_MONO | V4L2_TUNER_SUB_STEREO;
+#if defined(CONFIG_USB_SI470X) || defined(CONFIG_USB_SI470X_MODULE)
+	/* If there is a reliable method of detecting an RDS channel,
+	   then this code should check for that before setting this
+	   RDS subchannel. */
+	tuner->rxsubchans |= V4L2_TUNER_SUB_RDS;
+#endif
+
+	/* mono/stereo selector */
+	if ((radio->registers[POWERCFG] & POWERCFG_MONO) == 0)
+		tuner->audmode = V4L2_TUNER_MODE_STEREO;
+	else
+		tuner->audmode = V4L2_TUNER_MODE_MONO;
+
+	/* min is worst, max is best; signal:0..0xffff; rssi: 0..0xff */
+	/* measured in units of db쨉V in 1 db increments (max at ~75 db쨉V) */
+	tuner->signal = (radio->registers[STATUSRSSI] & STATUSRSSI_RSSI);
+	/* the ideal factor is 0xffff/75 = 873,8 */
+	tuner->signal = (tuner->signal * 873) + (8 * tuner->signal / 10);
+
+	/* automatic frequency control: -1: freq to low, 1 freq to high */
+	/* AFCRL does only indicate that freq. differs, not if too low/high */
+	tuner->afc = (radio->registers[STATUSRSSI] & STATUSRSSI_AFCRL) ? 1 : 0;
+
+done:
+	if (retval < 0)
+		dev_warn(&radio->videodev->dev,
+			"get tuner failed with %d\n", retval);
+	return retval;
+}
+
+
+/*
+ * si470x_vidioc_s_tuner - set tuner attributes
+ */
+static int si470x_vidioc_s_tuner(struct file *file, void *priv,
+		struct v4l2_tuner *tuner)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = -EINVAL;
+
+	/* safety checks */
+	retval = si470x_disconnect_check(radio);
+	if (retval)
+		goto done;
+
+	if (tuner->index != 0)
+		goto done;
+
+	/* mono/stereo selector */
+	switch (tuner->audmode) {
+	case V4L2_TUNER_MODE_MONO:
+		radio->registers[POWERCFG] |= POWERCFG_MONO;  /* force mono */
+		break;
+	case V4L2_TUNER_MODE_STEREO:
+		radio->registers[POWERCFG] &= ~POWERCFG_MONO; /* try stereo */
+		break;
+	default:
+		goto done;
+	}
+
+	retval = si470x_set_register(radio, POWERCFG);
+
+done:
+	if (retval < 0)
+		dev_warn(&radio->videodev->dev,
+			"set tuner failed with %d\n", retval);
+	return retval;
+}
+
+
+/*
+ * si470x_vidioc_g_frequency - get tuner or modulator radio frequency
+ */
+static int si470x_vidioc_g_frequency(struct file *file, void *priv,
+		struct v4l2_frequency *freq)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* safety checks */
+	retval = si470x_disconnect_check(radio);
+	if (retval)
+		goto done;
+
+	if (freq->tuner != 0) {
+		retval = -EINVAL;
+		goto done;
+	}
+
+	freq->type = V4L2_TUNER_RADIO;
+	retval = si470x_get_freq(radio, &freq->frequency);
+
+done:
+	if (retval < 0)
+		dev_warn(&radio->videodev->dev,
+			"get frequency failed with %d\n", retval);
+	return retval;
+}
+
+
+/*
+ * si470x_vidioc_s_frequency - set tuner or modulator radio frequency
+ */
+static int si470x_vidioc_s_frequency(struct file *file, void *priv,
+		struct v4l2_frequency *freq)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* safety checks */
+	retval = si470x_disconnect_check(radio);
+	if (retval)
+		goto done;
+
+	if (freq->tuner != 0) {
+		retval = -EINVAL;
+		goto done;
+	}
+
+	retval = si470x_set_freq(radio, freq->frequency);
+
+done:
+	if (retval < 0)
+		dev_warn(&radio->videodev->dev,
+			"set frequency failed with %d\n", retval);
+	return retval;
+}
+
+
+/*
+ * si470x_vidioc_s_hw_freq_seek - set hardware frequency seek
+ */
+static int si470x_vidioc_s_hw_freq_seek(struct file *file, void *priv,
+		struct v4l2_hw_freq_seek *seek)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* safety checks */
+	retval = si470x_disconnect_check(radio);
+	if (retval)
+		goto done;
+
+	if (seek->tuner != 0) {
+		retval = -EINVAL;
+		goto done;
+	}
+
+	retval = si470x_set_seek(radio, seek->wrap_around, seek->seek_upward);
+
+done:
+	if (retval < 0)
+		dev_warn(&radio->videodev->dev,
+			"set hardware frequency seek failed with %d\n", retval);
+	return retval;
+}
+
+
+/*
+ * si470x_ioctl_ops - video device ioctl operations
+ */
+static const struct v4l2_ioctl_ops si470x_ioctl_ops = {
+	.vidioc_querycap	= si470x_vidioc_querycap,
+	.vidioc_queryctrl	= si470x_vidioc_queryctrl,
+	.vidioc_g_ctrl		= si470x_vidioc_g_ctrl,
+	.vidioc_s_ctrl		= si470x_vidioc_s_ctrl,
+	.vidioc_g_audio		= si470x_vidioc_g_audio,
+	.vidioc_g_tuner		= si470x_vidioc_g_tuner,
+	.vidioc_s_tuner		= si470x_vidioc_s_tuner,
+	.vidioc_g_frequency	= si470x_vidioc_g_frequency,
+	.vidioc_s_frequency	= si470x_vidioc_s_frequency,
+	.vidioc_s_hw_freq_seek	= si470x_vidioc_s_hw_freq_seek,
+};
+
+
+/*
+ * si470x_viddev_template - video device interface
+ */
+struct video_device si470x_viddev_template = {
+	.fops			= &si470x_fops,
+	.name			= DRIVER_NAME,
+	.release		= video_device_release,
+	.ioctl_ops		= &si470x_ioctl_ops,
+};
diff --git a/linux/drivers/media/radio/si470x/radio-si470x-i2c.c b/linux/drivers/media/radio/si470x/radio-si470x-i2c.c
new file mode 100644
index 000000000..2d53b6a94
--- /dev/null
+++ b/linux/drivers/media/radio/si470x/radio-si470x-i2c.c
@@ -0,0 +1,401 @@
+/*
+ * drivers/media/radio/si470x/radio-si470x-i2c.c
+ *
+ * I2C driver for radios with Silicon Labs Si470x FM Radio Receivers
+ *
+ * Copyright (c) 2009 Samsung Electronics Co.Ltd
+ * Author: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+/*
+ * ToDo:
+ * - RDS support
+ */
+
+
+/* driver definitions */
+#define DRIVER_AUTHOR "Joonyoung Shim <jy0922.shim@samsung.com>";
+#define DRIVER_KERNEL_VERSION KERNEL_VERSION(1, 0, 0)
+#define DRIVER_CARD "Silicon Labs Si470x FM Radio Receiver"
+#define DRIVER_DESC "I2C radio driver for Si470x FM Radio Receivers"
+#define DRIVER_VERSION "1.0.0"
+
+/* kernel includes */
+#include <linux/i2c.h>
+#include <linux/delay.h>
+
+#include "radio-si470x.h"
+
+
+/* I2C Device ID List */
+static const struct i2c_device_id si470x_i2c_id[] = {
+	/* Generic Entry */
+	{ "si470x", 0 },
+	/* Terminating entry */
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, si470x_i2c_id);
+
+
+
+/**************************************************************************
+ * Module Parameters
+ **************************************************************************/
+
+/* Radio Nr */
+static int radio_nr = -1;
+module_param(radio_nr, int, 0444);
+MODULE_PARM_DESC(radio_nr, "Radio Nr");
+
+
+
+/**************************************************************************
+ * I2C Definitions
+ **************************************************************************/
+
+/* Write starts with the upper byte of register 0x02 */
+#define WRITE_REG_NUM		8
+#define WRITE_INDEX(i)		(i + 0x02)
+
+/* Read starts with the upper byte of register 0x0a */
+#define READ_REG_NUM		RADIO_REGISTER_NUM
+#define READ_INDEX(i)		((i + RADIO_REGISTER_NUM - 0x0a) % READ_REG_NUM)
+
+
+
+/**************************************************************************
+ * General Driver Functions - REGISTERs
+ **************************************************************************/
+
+/*
+ * si470x_get_register - read register
+ */
+int si470x_get_register(struct si470x_device *radio, int regnr)
+{
+	u16 buf[READ_REG_NUM];
+	struct i2c_msg msgs[1] = {
+		{ radio->client->addr, I2C_M_RD, sizeof(u16) * READ_REG_NUM,
+			(void *)buf },
+	};
+
+	if (i2c_transfer(radio->client->adapter, msgs, 1) != 1)
+		return -EIO;
+
+	radio->registers[regnr] = __be16_to_cpu(buf[READ_INDEX(regnr)]);
+
+	return 0;
+}
+
+
+/*
+ * si470x_set_register - write register
+ */
+int si470x_set_register(struct si470x_device *radio, int regnr)
+{
+	int i;
+	u16 buf[WRITE_REG_NUM];
+	struct i2c_msg msgs[1] = {
+		{ radio->client->addr, 0, sizeof(u16) * WRITE_REG_NUM,
+			(void *)buf },
+	};
+
+	for (i = 0; i < WRITE_REG_NUM; i++)
+		buf[i] = __cpu_to_be16(radio->registers[WRITE_INDEX(i)]);
+
+	if (i2c_transfer(radio->client->adapter, msgs, 1) != 1)
+		return -EIO;
+
+	return 0;
+}
+
+
+
+/**************************************************************************
+ * General Driver Functions - ENTIRE REGISTERS
+ **************************************************************************/
+
+/*
+ * si470x_get_all_registers - read entire registers
+ */
+static int si470x_get_all_registers(struct si470x_device *radio)
+{
+	int i;
+	u16 buf[READ_REG_NUM];
+	struct i2c_msg msgs[1] = {
+		{ radio->client->addr, I2C_M_RD, sizeof(u16) * READ_REG_NUM,
+			(void *)buf },
+	};
+
+	if (i2c_transfer(radio->client->adapter, msgs, 1) != 1)
+		return -EIO;
+
+	for (i = 0; i < READ_REG_NUM; i++)
+		radio->registers[i] = __be16_to_cpu(buf[READ_INDEX(i)]);
+
+	return 0;
+}
+
+
+
+/**************************************************************************
+ * General Driver Functions - DISCONNECT_CHECK
+ **************************************************************************/
+
+/*
+ * si470x_disconnect_check - check whether radio disconnects
+ */
+int si470x_disconnect_check(struct si470x_device *radio)
+{
+	return 0;
+}
+
+
+
+/**************************************************************************
+ * File Operations Interface
+ **************************************************************************/
+
+/*
+ * si470x_fops_open - file open
+ */
+static int si470x_fops_open(struct file *file)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	mutex_lock(&radio->lock);
+	radio->users++;
+
+	if (radio->users == 1)
+		/* start radio */
+		retval = si470x_start(radio);
+
+	mutex_unlock(&radio->lock);
+
+	return retval;
+}
+
+
+/*
+ * si470x_fops_release - file release
+ */
+static int si470x_fops_release(struct file *file)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* safety check */
+	if (!radio)
+		return -ENODEV;
+
+	mutex_lock(&radio->lock);
+	radio->users--;
+	if (radio->users == 0)
+		/* stop radio */
+		retval = si470x_stop(radio);
+
+	mutex_unlock(&radio->lock);
+
+	return retval;
+}
+
+
+/*
+ * si470x_fops - file operations interface
+ */
+const struct v4l2_file_operations si470x_fops = {
+	.owner		= THIS_MODULE,
+	.ioctl		= video_ioctl2,
+	.open		= si470x_fops_open,
+	.release	= si470x_fops_release,
+};
+
+
+
+/**************************************************************************
+ * Video4Linux Interface
+ **************************************************************************/
+
+/*
+ * si470x_vidioc_querycap - query device capabilities
+ */
+int si470x_vidioc_querycap(struct file *file, void *priv,
+		struct v4l2_capability *capability)
+{
+	strlcpy(capability->driver, DRIVER_NAME, sizeof(capability->driver));
+	strlcpy(capability->card, DRIVER_CARD, sizeof(capability->card));
+	capability->version = DRIVER_KERNEL_VERSION;
+	capability->capabilities = V4L2_CAP_HW_FREQ_SEEK |
+		V4L2_CAP_TUNER | V4L2_CAP_RADIO;
+
+	return 0;
+}
+
+
+
+/**************************************************************************
+ * I2C Interface
+ **************************************************************************/
+
+/*
+ * si470x_i2c_probe - probe for the device
+ */
+static int __devinit si470x_i2c_probe(struct i2c_client *client,
+		const struct i2c_device_id *id)
+{
+	struct si470x_device *radio;
+	int retval = 0;
+	unsigned char version_warning = 0;
+
+	/* private data allocation and initialization */
+	radio = kzalloc(sizeof(struct si470x_device), GFP_KERNEL);
+	if (!radio) {
+		retval = -ENOMEM;
+		goto err_initial;
+	}
+	radio->users = 0;
+	radio->client = client;
+	mutex_init(&radio->lock);
+
+	/* video device allocation and initialization */
+	radio->videodev = video_device_alloc();
+	if (!radio->videodev) {
+		retval = -ENOMEM;
+		goto err_radio;
+	}
+	memcpy(radio->videodev, &si470x_viddev_template,
+			sizeof(si470x_viddev_template));
+	video_set_drvdata(radio->videodev, radio);
+
+	/* power up : need 110ms */
+	radio->registers[POWERCFG] = POWERCFG_ENABLE;
+	if (si470x_set_register(radio, POWERCFG) < 0) {
+		retval = -EIO;
+		goto err_all;
+	}
+	msleep(110);
+
+	/* get device and chip versions */
+	if (si470x_get_all_registers(radio) < 0) {
+		retval = -EIO;
+		goto err_video;
+	}
+	dev_info(&client->dev, "DeviceID=0x%4.4hx ChipID=0x%4.4hx\n",
+			radio->registers[DEVICEID], radio->registers[CHIPID]);
+	if ((radio->registers[CHIPID] & CHIPID_FIRMWARE) < RADIO_FW_VERSION) {
+		dev_warn(&client->dev,
+			"This driver is known to work with "
+			"firmware version %hu,\n", RADIO_FW_VERSION);
+		dev_warn(&client->dev,
+			"but the device has firmware version %hu.\n",
+			radio->registers[CHIPID] & CHIPID_FIRMWARE);
+		version_warning = 1;
+	}
+
+	/* give out version warning */
+	if (version_warning == 1) {
+		dev_warn(&client->dev,
+			"If you have some trouble using this driver,\n");
+		dev_warn(&client->dev,
+			"please report to V4L ML at "
+			"linux-media@vger.kernel.org\n");
+	}
+
+	/* set initial frequency */
+	si470x_set_freq(radio, 87.5 * FREQ_MUL); /* available in all regions */
+
+	/* register video device */
+	retval = video_register_device(radio->videodev, VFL_TYPE_RADIO,
+			radio_nr);
+	if (retval) {
+		dev_warn(&client->dev, "Could not register video device\n");
+		goto err_all;
+	}
+	i2c_set_clientdata(client, radio);
+
+	return 0;
+err_all:
+err_video:
+	video_device_release(radio->videodev);
+err_radio:
+	kfree(radio);
+err_initial:
+	return retval;
+}
+
+
+/*
+ * si470x_i2c_remove - remove the device
+ */
+static __devexit int si470x_i2c_remove(struct i2c_client *client)
+{
+	struct si470x_device *radio = i2c_get_clientdata(client);
+
+	video_unregister_device(radio->videodev);
+	kfree(radio);
+	i2c_set_clientdata(client, NULL);
+
+	return 0;
+}
+
+
+/*
+ * si470x_i2c_driver - i2c driver interface
+ */
+static struct i2c_driver si470x_i2c_driver = {
+	.driver = {
+		.name		= "si470x",
+		.owner		= THIS_MODULE,
+	},
+	.probe			= si470x_i2c_probe,
+	.remove			= __devexit_p(si470x_i2c_remove),
+	.id_table		= si470x_i2c_id,
+};
+
+
+
+/**************************************************************************
+ * Module Interface
+ **************************************************************************/
+
+/*
+ * si470x_i2c_init - module init
+ */
+static int __init si470x_i2c_init(void)
+{
+	printk(KERN_INFO DRIVER_DESC ", Version " DRIVER_VERSION "\n");
+	return i2c_add_driver(&si470x_i2c_driver);
+}
+
+
+/*
+ * si470x_i2c_exit - module exit
+ */
+static void __exit si470x_i2c_exit(void)
+{
+	i2c_del_driver(&si470x_i2c_driver);
+}
+
+
+module_init(si470x_i2c_init);
+module_exit(si470x_i2c_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_VERSION(DRIVER_VERSION);
diff --git a/linux/drivers/media/radio/si470x/radio-si470x-usb.c b/linux/drivers/media/radio/si470x/radio-si470x-usb.c
new file mode 100644
index 000000000..f2d0e1ddb
--- /dev/null
+++ b/linux/drivers/media/radio/si470x/radio-si470x-usb.c
@@ -0,0 +1,988 @@
+/*
+ *  drivers/media/radio/si470x/radio-si470x-usb.c
+ *
+ *  USB driver for radios with Silicon Labs Si470x FM Radio Receivers
+ *
+ *  Copyright (c) 2009 Tobias Lorenz <tobias.lorenz@gmx.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+/*
+ * ToDo:
+ * - add firmware download/update support
+ */
+
+
+/* driver definitions */
+#define DRIVER_AUTHOR "Tobias Lorenz <tobias.lorenz@gmx.net>"
+#define DRIVER_KERNEL_VERSION KERNEL_VERSION(1, 0, 10)
+#define DRIVER_CARD "Silicon Labs Si470x FM Radio Receiver"
+#define DRIVER_DESC "USB radio driver for Si470x FM Radio Receivers"
+#define DRIVER_VERSION "1.0.10"
+
+/* kernel includes */
+#include <linux/usb.h>
+#include <linux/hid.h>
+
+#include "radio-si470x.h"
+
+
+/* USB Device ID List */
+static struct usb_device_id si470x_usb_driver_id_table[] = {
+	/* Silicon Labs USB FM Radio Reference Design */
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x10c4, 0x818a, USB_CLASS_HID, 0, 0) },
+	/* ADS/Tech FM Radio Receiver (formerly Instant FM Music) */
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x06e1, 0xa155, USB_CLASS_HID, 0, 0) },
+	/* KWorld USB FM Radio SnapMusic Mobile 700 (FM700) */
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x1b80, 0xd700, USB_CLASS_HID, 0, 0) },
+	/* Sanei Electric, Inc. FM USB Radio (sold as DealExtreme.com PCear) */
+	{ USB_DEVICE_AND_INTERFACE_INFO(0x10c5, 0x819a, USB_CLASS_HID, 0, 0) },
+	/* Terminating entry */
+	{ }
+};
+MODULE_DEVICE_TABLE(usb, si470x_usb_driver_id_table);
+
+
+
+/**************************************************************************
+ * Module Parameters
+ **************************************************************************/
+
+/* Radio Nr */
+static int radio_nr = -1;
+module_param(radio_nr, int, 0444);
+MODULE_PARM_DESC(radio_nr, "Radio Nr");
+
+/* USB timeout */
+static unsigned int usb_timeout = 500;
+module_param(usb_timeout, uint, 0644);
+MODULE_PARM_DESC(usb_timeout, "USB timeout (ms): *500*");
+
+/* RDS buffer blocks */
+static unsigned int rds_buf = 100;
+module_param(rds_buf, uint, 0444);
+MODULE_PARM_DESC(rds_buf, "RDS buffer entries: *100*");
+
+/* RDS maximum block errors */
+static unsigned short max_rds_errors = 1;
+/* 0 means   0  errors requiring correction */
+/* 1 means 1-2  errors requiring correction (used by original USBRadio.exe) */
+/* 2 means 3-5  errors requiring correction */
+/* 3 means   6+ errors or errors in checkword, correction not possible */
+module_param(max_rds_errors, ushort, 0644);
+MODULE_PARM_DESC(max_rds_errors, "RDS maximum block errors: *1*");
+
+
+
+/**************************************************************************
+ * USB HID Reports
+ **************************************************************************/
+
+/* Reports 1-16 give direct read/write access to the 16 Si470x registers */
+/* with the (REPORT_ID - 1) corresponding to the register address across USB */
+/* endpoint 0 using GET_REPORT and SET_REPORT */
+#define REGISTER_REPORT_SIZE	(RADIO_REGISTER_SIZE + 1)
+#define REGISTER_REPORT(reg)	((reg) + 1)
+
+/* Report 17 gives direct read/write access to the entire Si470x register */
+/* map across endpoint 0 using GET_REPORT and SET_REPORT */
+#define ENTIRE_REPORT_SIZE	(RADIO_REGISTER_NUM * RADIO_REGISTER_SIZE + 1)
+#define ENTIRE_REPORT		17
+
+/* Report 18 is used to send the lowest 6 Si470x registers up the HID */
+/* interrupt endpoint 1 to Windows every 20 milliseconds for status */
+#define RDS_REPORT_SIZE		(RDS_REGISTER_NUM * RADIO_REGISTER_SIZE + 1)
+#define RDS_REPORT		18
+
+/* Report 19: LED state */
+#define LED_REPORT_SIZE		3
+#define LED_REPORT		19
+
+/* Report 19: stream */
+#define STREAM_REPORT_SIZE	3
+#define STREAM_REPORT		19
+
+/* Report 20: scratch */
+#define SCRATCH_PAGE_SIZE	63
+#define SCRATCH_REPORT_SIZE	(SCRATCH_PAGE_SIZE + 1)
+#define SCRATCH_REPORT		20
+
+/* Reports 19-22: flash upgrade of the C8051F321 */
+#define WRITE_REPORT_SIZE	4
+#define WRITE_REPORT		19
+#define FLASH_REPORT_SIZE	64
+#define FLASH_REPORT		20
+#define CRC_REPORT_SIZE		3
+#define CRC_REPORT		21
+#define RESPONSE_REPORT_SIZE	2
+#define RESPONSE_REPORT		22
+
+/* Report 23: currently unused, but can accept 60 byte reports on the HID */
+/* interrupt out endpoint 2 every 1 millisecond */
+#define UNUSED_REPORT		23
+
+
+
+/**************************************************************************
+ * Software/Hardware Versions from Scratch Page
+ **************************************************************************/
+#define RADIO_SW_VERSION_NOT_BOOTLOADABLE	6
+#define RADIO_SW_VERSION			7
+#define RADIO_HW_VERSION			1
+
+
+
+/**************************************************************************
+ * LED State Definitions
+ **************************************************************************/
+#define LED_COMMAND		0x35
+
+#define NO_CHANGE_LED		0x00
+#define ALL_COLOR_LED		0x01	/* streaming state */
+#define BLINK_GREEN_LED		0x02	/* connect state */
+#define BLINK_RED_LED		0x04
+#define BLINK_ORANGE_LED	0x10	/* disconnect state */
+#define SOLID_GREEN_LED		0x20	/* tuning/seeking state */
+#define SOLID_RED_LED		0x40	/* bootload state */
+#define SOLID_ORANGE_LED	0x80
+
+
+
+/**************************************************************************
+ * Stream State Definitions
+ **************************************************************************/
+#define STREAM_COMMAND	0x36
+#define STREAM_VIDPID	0x00
+#define STREAM_AUDIO	0xff
+
+
+
+/**************************************************************************
+ * Bootloader / Flash Commands
+ **************************************************************************/
+
+/* unique id sent to bootloader and required to put into a bootload state */
+#define UNIQUE_BL_ID		0x34
+
+/* mask for the flash data */
+#define FLASH_DATA_MASK		0x55
+
+/* bootloader commands */
+#define GET_SW_VERSION_COMMAND	0x00
+#define SET_PAGE_COMMAND	0x01
+#define ERASE_PAGE_COMMAND	0x02
+#define WRITE_PAGE_COMMAND	0x03
+#define CRC_ON_PAGE_COMMAND	0x04
+#define READ_FLASH_BYTE_COMMAND	0x05
+#define RESET_DEVICE_COMMAND	0x06
+#define GET_HW_VERSION_COMMAND	0x07
+#define BLANK			0xff
+
+/* bootloader command responses */
+#define COMMAND_OK		0x01
+#define COMMAND_FAILED		0x02
+#define COMMAND_PENDING		0x03
+
+
+
+/**************************************************************************
+ * General Driver Functions - REGISTER_REPORTs
+ **************************************************************************/
+
+/*
+ * si470x_get_report - receive a HID report
+ */
+static int si470x_get_report(struct si470x_device *radio, void *buf, int size)
+{
+	unsigned char *report = (unsigned char *) buf;
+	int retval;
+
+	retval = usb_control_msg(radio->usbdev,
+		usb_rcvctrlpipe(radio->usbdev, 0),
+		HID_REQ_GET_REPORT,
+		USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN,
+		report[0], 2,
+		buf, size, usb_timeout);
+
+	if (retval < 0)
+		dev_warn(&radio->intf->dev,
+			"si470x_get_report: usb_control_msg returned %d\n",
+			retval);
+	return retval;
+}
+
+
+/*
+ * si470x_set_report - send a HID report
+ */
+static int si470x_set_report(struct si470x_device *radio, void *buf, int size)
+{
+	unsigned char *report = (unsigned char *) buf;
+	int retval;
+
+	retval = usb_control_msg(radio->usbdev,
+		usb_sndctrlpipe(radio->usbdev, 0),
+		HID_REQ_SET_REPORT,
+		USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
+		report[0], 2,
+		buf, size, usb_timeout);
+
+	if (retval < 0)
+		dev_warn(&radio->intf->dev,
+			"si470x_set_report: usb_control_msg returned %d\n",
+			retval);
+	return retval;
+}
+
+
+/*
+ * si470x_get_register - read register
+ */
+int si470x_get_register(struct si470x_device *radio, int regnr)
+{
+	unsigned char buf[REGISTER_REPORT_SIZE];
+	int retval;
+
+	buf[0] = REGISTER_REPORT(regnr);
+
+	retval = si470x_get_report(radio, (void *) &buf, sizeof(buf));
+
+	if (retval >= 0)
+		radio->registers[regnr] = get_unaligned_be16(&buf[1]);
+
+	return (retval < 0) ? -EINVAL : 0;
+}
+
+
+/*
+ * si470x_set_register - write register
+ */
+int si470x_set_register(struct si470x_device *radio, int regnr)
+{
+	unsigned char buf[REGISTER_REPORT_SIZE];
+	int retval;
+
+	buf[0] = REGISTER_REPORT(regnr);
+	put_unaligned_be16(radio->registers[regnr], &buf[1]);
+
+	retval = si470x_set_report(radio, (void *) &buf, sizeof(buf));
+
+	return (retval < 0) ? -EINVAL : 0;
+}
+
+
+
+/**************************************************************************
+ * General Driver Functions - ENTIRE_REPORT
+ **************************************************************************/
+
+/*
+ * si470x_get_all_registers - read entire registers
+ */
+static int si470x_get_all_registers(struct si470x_device *radio)
+{
+	unsigned char buf[ENTIRE_REPORT_SIZE];
+	int retval;
+	unsigned char regnr;
+
+	buf[0] = ENTIRE_REPORT;
+
+	retval = si470x_get_report(radio, (void *) &buf, sizeof(buf));
+
+	if (retval >= 0)
+		for (regnr = 0; regnr < RADIO_REGISTER_NUM; regnr++)
+			radio->registers[regnr] = get_unaligned_be16(
+				&buf[regnr * RADIO_REGISTER_SIZE + 1]);
+
+	return (retval < 0) ? -EINVAL : 0;
+}
+
+
+
+/**************************************************************************
+ * General Driver Functions - LED_REPORT
+ **************************************************************************/
+
+/*
+ * si470x_set_led_state - sets the led state
+ */
+static int si470x_set_led_state(struct si470x_device *radio,
+		unsigned char led_state)
+{
+	unsigned char buf[LED_REPORT_SIZE];
+	int retval;
+
+	buf[0] = LED_REPORT;
+	buf[1] = LED_COMMAND;
+	buf[2] = led_state;
+
+	retval = si470x_set_report(radio, (void *) &buf, sizeof(buf));
+
+	return (retval < 0) ? -EINVAL : 0;
+}
+
+
+
+/**************************************************************************
+ * General Driver Functions - SCRATCH_REPORT
+ **************************************************************************/
+
+/*
+ * si470x_get_scratch_versions - gets the scratch page and version infos
+ */
+static int si470x_get_scratch_page_versions(struct si470x_device *radio)
+{
+	unsigned char buf[SCRATCH_REPORT_SIZE];
+	int retval;
+
+	buf[0] = SCRATCH_REPORT;
+
+	retval = si470x_get_report(radio, (void *) &buf, sizeof(buf));
+
+	if (retval < 0)
+		dev_warn(&radio->intf->dev, "si470x_get_scratch: "
+			"si470x_get_report returned %d\n", retval);
+	else {
+		radio->software_version = buf[1];
+		radio->hardware_version = buf[2];
+	}
+
+	return (retval < 0) ? -EINVAL : 0;
+}
+
+
+
+/**************************************************************************
+ * General Driver Functions - DISCONNECT_CHECK
+ **************************************************************************/
+
+/*
+ * si470x_disconnect_check - check whether radio disconnects
+ */
+int si470x_disconnect_check(struct si470x_device *radio)
+{
+	if (radio->disconnected)
+		return -EIO;
+	else
+		return 0;
+}
+
+
+
+/**************************************************************************
+ * RDS Driver Functions
+ **************************************************************************/
+
+/*
+ * si470x_int_in_callback - rds callback and processing function
+ *
+ * TODO: do we need to use mutex locks in some sections?
+ */
+static void si470x_int_in_callback(struct urb *urb)
+{
+	struct si470x_device *radio = urb->context;
+	unsigned char buf[RDS_REPORT_SIZE];
+	int retval;
+	unsigned char regnr;
+	unsigned char blocknum;
+	unsigned short bler; /* rds block errors */
+	unsigned short rds;
+	unsigned char tmpbuf[3];
+
+	if (urb->status) {
+		if (urb->status == -ENOENT ||
+				urb->status == -ECONNRESET ||
+				urb->status == -ESHUTDOWN) {
+			return;
+		} else {
+			dev_warn(&radio->intf->dev,
+			 "non-zero urb status (%d)\n", urb->status);
+			goto resubmit; /* Maybe we can recover. */
+		}
+	}
+
+	/* safety checks */
+	if (radio->disconnected)
+		return;
+	if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0)
+		goto resubmit;
+
+	if (urb->actual_length > 0) {
+		/* Update RDS registers with URB data */
+		buf[0] = RDS_REPORT;
+		for (regnr = 0; regnr < RDS_REGISTER_NUM; regnr++)
+			radio->registers[STATUSRSSI + regnr] =
+			    get_unaligned_be16(&radio->int_in_buffer[
+				regnr * RADIO_REGISTER_SIZE + 1]);
+		/* get rds blocks */
+		if ((radio->registers[STATUSRSSI] & STATUSRSSI_RDSR) == 0) {
+			/* No RDS group ready, better luck next time */
+			goto resubmit;
+		}
+		if ((radio->registers[STATUSRSSI] & STATUSRSSI_RDSS) == 0) {
+			/* RDS decoder not synchronized */
+			goto resubmit;
+		}
+		for (blocknum = 0; blocknum < 4; blocknum++) {
+			switch (blocknum) {
+			default:
+				bler = (radio->registers[STATUSRSSI] &
+						STATUSRSSI_BLERA) >> 9;
+				rds = radio->registers[RDSA];
+				break;
+			case 1:
+				bler = (radio->registers[READCHAN] &
+						READCHAN_BLERB) >> 14;
+				rds = radio->registers[RDSB];
+				break;
+			case 2:
+				bler = (radio->registers[READCHAN] &
+						READCHAN_BLERC) >> 12;
+				rds = radio->registers[RDSC];
+				break;
+			case 3:
+				bler = (radio->registers[READCHAN] &
+						READCHAN_BLERD) >> 10;
+				rds = radio->registers[RDSD];
+				break;
+			};
+
+			/* Fill the V4L2 RDS buffer */
+			put_unaligned_le16(rds, &tmpbuf);
+			tmpbuf[2] = blocknum;		/* offset name */
+			tmpbuf[2] |= blocknum << 3;	/* received offset */
+			if (bler > max_rds_errors)
+				tmpbuf[2] |= 0x80; /* uncorrectable errors */
+			else if (bler > 0)
+				tmpbuf[2] |= 0x40; /* corrected error(s) */
+
+			/* copy RDS block to internal buffer */
+			memcpy(&radio->buffer[radio->wr_index], &tmpbuf, 3);
+			radio->wr_index += 3;
+
+			/* wrap write pointer */
+			if (radio->wr_index >= radio->buf_size)
+				radio->wr_index = 0;
+
+			/* check for overflow */
+			if (radio->wr_index == radio->rd_index) {
+				/* increment and wrap read pointer */
+				radio->rd_index += 3;
+				if (radio->rd_index >= radio->buf_size)
+					radio->rd_index = 0;
+			}
+		}
+		if (radio->wr_index != radio->rd_index)
+			wake_up_interruptible(&radio->read_queue);
+	}
+
+resubmit:
+	/* Resubmit if we're still running. */
+	if (radio->int_in_running && radio->usbdev) {
+		retval = usb_submit_urb(radio->int_in_urb, GFP_ATOMIC);
+		if (retval) {
+			dev_warn(&radio->intf->dev,
+			       "resubmitting urb failed (%d)", retval);
+			radio->int_in_running = 0;
+		}
+	}
+}
+
+
+
+/**************************************************************************
+ * File Operations Interface
+ **************************************************************************/
+
+/*
+ * si470x_fops_read - read RDS data
+ */
+static ssize_t si470x_fops_read(struct file *file, char __user *buf,
+		size_t count, loff_t *ppos)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+	unsigned int block_count = 0;
+
+	/* switch on rds reception */
+	if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0)
+		si470x_rds_on(radio);
+
+	/* block if no new data available */
+	while (radio->wr_index == radio->rd_index) {
+		if (file->f_flags & O_NONBLOCK) {
+			retval = -EWOULDBLOCK;
+			goto done;
+		}
+		if (wait_event_interruptible(radio->read_queue,
+			radio->wr_index != radio->rd_index) < 0) {
+			retval = -EINTR;
+			goto done;
+		}
+	}
+
+	/* calculate block count from byte count */
+	count /= 3;
+
+	/* copy RDS block out of internal buffer and to user buffer */
+	mutex_lock(&radio->lock);
+	while (block_count < count) {
+		if (radio->rd_index == radio->wr_index)
+			break;
+
+		/* always transfer rds complete blocks */
+		if (copy_to_user(buf, &radio->buffer[radio->rd_index], 3))
+			/* retval = -EFAULT; */
+			break;
+
+		/* increment and wrap read pointer */
+		radio->rd_index += 3;
+		if (radio->rd_index >= radio->buf_size)
+			radio->rd_index = 0;
+
+		/* increment counters */
+		block_count++;
+		buf += 3;
+		retval += 3;
+	}
+	mutex_unlock(&radio->lock);
+
+done:
+	return retval;
+}
+
+
+/*
+ * si470x_fops_poll - poll RDS data
+ */
+static unsigned int si470x_fops_poll(struct file *file,
+		struct poll_table_struct *pts)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* switch on rds reception */
+	if ((radio->registers[SYSCONFIG1] & SYSCONFIG1_RDS) == 0)
+		si470x_rds_on(radio);
+
+	poll_wait(file, &radio->read_queue, pts);
+
+	if (radio->rd_index != radio->wr_index)
+		retval = POLLIN | POLLRDNORM;
+
+	return retval;
+}
+
+
+/*
+ * si470x_fops_open - file open
+ */
+static int si470x_fops_open(struct file *file)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval;
+
+	lock_kernel();
+	radio->users++;
+
+	retval = usb_autopm_get_interface(radio->intf);
+	if (retval < 0) {
+		radio->users--;
+		retval = -EIO;
+		goto done;
+	}
+
+	if (radio->users == 1) {
+		/* start radio */
+		retval = si470x_start(radio);
+		if (retval < 0) {
+			usb_autopm_put_interface(radio->intf);
+			goto done;
+		}
+
+		/* initialize interrupt urb */
+		usb_fill_int_urb(radio->int_in_urb, radio->usbdev,
+			usb_rcvintpipe(radio->usbdev,
+			radio->int_in_endpoint->bEndpointAddress),
+			radio->int_in_buffer,
+			le16_to_cpu(radio->int_in_endpoint->wMaxPacketSize),
+			si470x_int_in_callback,
+			radio,
+			radio->int_in_endpoint->bInterval);
+
+		radio->int_in_running = 1;
+		mb();
+
+		retval = usb_submit_urb(radio->int_in_urb, GFP_KERNEL);
+		if (retval) {
+			dev_info(&radio->intf->dev,
+				 "submitting int urb failed (%d)\n", retval);
+			radio->int_in_running = 0;
+			usb_autopm_put_interface(radio->intf);
+		}
+	}
+
+done:
+	unlock_kernel();
+	return retval;
+}
+
+
+/*
+ * si470x_fops_release - file release
+ */
+static int si470x_fops_release(struct file *file)
+{
+	struct si470x_device *radio = video_drvdata(file);
+	int retval = 0;
+
+	/* safety check */
+	if (!radio) {
+		retval = -ENODEV;
+		goto done;
+	}
+
+	mutex_lock(&radio->disconnect_lock);
+	radio->users--;
+	if (radio->users == 0) {
+		/* shutdown interrupt handler */
+		if (radio->int_in_running) {
+			radio->int_in_running = 0;
+		if (radio->int_in_urb)
+			usb_kill_urb(radio->int_in_urb);
+		}
+
+		if (radio->disconnected) {
+			video_unregister_device(radio->videodev);
+			kfree(radio->int_in_buffer);
+			kfree(radio->buffer);
+			kfree(radio);
+			goto unlock;
+		}
+
+		/* cancel read processes */
+		wake_up_interruptible(&radio->read_queue);
+
+		/* stop radio */
+		retval = si470x_stop(radio);
+		usb_autopm_put_interface(radio->intf);
+	}
+unlock:
+	mutex_unlock(&radio->disconnect_lock);
+done:
+	return retval;
+}
+
+
+/*
+ * si470x_fops - file operations interface
+ */
+const struct v4l2_file_operations si470x_fops = {
+	.owner		= THIS_MODULE,
+	.read		= si470x_fops_read,
+	.poll		= si470x_fops_poll,
+	.ioctl		= video_ioctl2,
+	.open		= si470x_fops_open,
+	.release	= si470x_fops_release,
+};
+
+
+
+/**************************************************************************
+ * Video4Linux Interface
+ **************************************************************************/
+
+/*
+ * si470x_vidioc_querycap - query device capabilities
+ */
+int si470x_vidioc_querycap(struct file *file, void *priv,
+		struct v4l2_capability *capability)
+{
+	struct si470x_device *radio = video_drvdata(file);
+
+	strlcpy(capability->driver, DRIVER_NAME, sizeof(capability->driver));
+	strlcpy(capability->card, DRIVER_CARD, sizeof(capability->card));
+	usb_make_path(radio->usbdev, capability->bus_info,
+			sizeof(capability->bus_info));
+	capability->version = DRIVER_KERNEL_VERSION;
+	capability->capabilities = V4L2_CAP_HW_FREQ_SEEK |
+		V4L2_CAP_TUNER | V4L2_CAP_RADIO | V4L2_CAP_RDS_CAPTURE;
+
+	return 0;
+}
+
+
+
+/**************************************************************************
+ * USB Interface
+ **************************************************************************/
+
+/*
+ * si470x_usb_driver_probe - probe for the device
+ */
+static int si470x_usb_driver_probe(struct usb_interface *intf,
+		const struct usb_device_id *id)
+{
+	struct si470x_device *radio;
+	struct usb_host_interface *iface_desc;
+	struct usb_endpoint_descriptor *endpoint;
+	int i, int_end_size, retval = 0;
+	unsigned char version_warning = 0;
+
+	/* private data allocation and initialization */
+	radio = kzalloc(sizeof(struct si470x_device), GFP_KERNEL);
+	if (!radio) {
+		retval = -ENOMEM;
+		goto err_initial;
+	}
+	radio->users = 0;
+	radio->disconnected = 0;
+	radio->usbdev = interface_to_usbdev(intf);
+	radio->intf = intf;
+	mutex_init(&radio->disconnect_lock);
+	mutex_init(&radio->lock);
+
+	iface_desc = intf->cur_altsetting;
+
+	/* Set up interrupt endpoint information. */
+	for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
+		endpoint = &iface_desc->endpoint[i].desc;
+		if (((endpoint->bEndpointAddress & USB_ENDPOINT_DIR_MASK) ==
+		 USB_DIR_IN) && ((endpoint->bmAttributes &
+		 USB_ENDPOINT_XFERTYPE_MASK) == USB_ENDPOINT_XFER_INT))
+			radio->int_in_endpoint = endpoint;
+	}
+	if (!radio->int_in_endpoint) {
+		dev_info(&intf->dev, "could not find interrupt in endpoint\n");
+		retval = -EIO;
+		goto err_radio;
+	}
+
+	int_end_size = le16_to_cpu(radio->int_in_endpoint->wMaxPacketSize);
+
+	radio->int_in_buffer = kmalloc(int_end_size, GFP_KERNEL);
+	if (!radio->int_in_buffer) {
+		dev_info(&intf->dev, "could not allocate int_in_buffer");
+		retval = -ENOMEM;
+		goto err_radio;
+	}
+
+	radio->int_in_urb = usb_alloc_urb(0, GFP_KERNEL);
+	if (!radio->int_in_urb) {
+		dev_info(&intf->dev, "could not allocate int_in_urb");
+		retval = -ENOMEM;
+		goto err_intbuffer;
+	}
+
+	/* video device allocation and initialization */
+	radio->videodev = video_device_alloc();
+	if (!radio->videodev) {
+		retval = -ENOMEM;
+		goto err_intbuffer;
+	}
+	memcpy(radio->videodev, &si470x_viddev_template,
+			sizeof(si470x_viddev_template));
+	video_set_drvdata(radio->videodev, radio);
+
+	/* get device and chip versions */
+	if (si470x_get_all_registers(radio) < 0) {
+		retval = -EIO;
+		goto err_video;
+	}
+	dev_info(&intf->dev, "DeviceID=0x%4.4hx ChipID=0x%4.4hx\n",
+			radio->registers[DEVICEID], radio->registers[CHIPID]);
+	if ((radio->registers[CHIPID] & CHIPID_FIRMWARE) < RADIO_FW_VERSION) {
+		dev_warn(&intf->dev,
+			"This driver is known to work with "
+			"firmware version %hu,\n", RADIO_FW_VERSION);
+		dev_warn(&intf->dev,
+			"but the device has firmware version %hu.\n",
+			radio->registers[CHIPID] & CHIPID_FIRMWARE);
+		version_warning = 1;
+	}
+
+	/* get software and hardware versions */
+	if (si470x_get_scratch_page_versions(radio) < 0) {
+		retval = -EIO;
+		goto err_video;
+	}
+	dev_info(&intf->dev, "software version %d, hardware version %d\n",
+			radio->software_version, radio->hardware_version);
+	if (radio->software_version < RADIO_SW_VERSION) {
+		dev_warn(&intf->dev,
+			"This driver is known to work with "
+			"software version %hu,\n", RADIO_SW_VERSION);
+		dev_warn(&intf->dev,
+			"but the device has software version %hu.\n",
+			radio->software_version);
+		version_warning = 1;
+	}
+	if (radio->hardware_version < RADIO_HW_VERSION) {
+		dev_warn(&intf->dev,
+			"This driver is known to work with "
+			"hardware version %hu,\n", RADIO_HW_VERSION);
+		dev_warn(&intf->dev,
+			"but the device has hardware version %hu.\n",
+			radio->hardware_version);
+		version_warning = 1;
+	}
+
+	/* give out version warning */
+	if (version_warning == 1) {
+		dev_warn(&intf->dev,
+			"If you have some trouble using this driver,\n");
+		dev_warn(&intf->dev,
+			"please report to V4L ML at "
+			"linux-media@vger.kernel.org\n");
+	}
+
+	/* set initial frequency */
+	si470x_set_freq(radio, 87.5 * FREQ_MUL); /* available in all regions */
+
+	/* set led to connect state */
+	si470x_set_led_state(radio, BLINK_GREEN_LED);
+
+	/* rds buffer allocation */
+	radio->buf_size = rds_buf * 3;
+	radio->buffer = kmalloc(radio->buf_size, GFP_KERNEL);
+	if (!radio->buffer) {
+		retval = -EIO;
+		goto err_video;
+	}
+
+	/* rds buffer configuration */
+	radio->wr_index = 0;
+	radio->rd_index = 0;
+	init_waitqueue_head(&radio->read_queue);
+
+	/* register video device */
+	retval = video_register_device(radio->videodev, VFL_TYPE_RADIO,
+			radio_nr);
+	if (retval) {
+		dev_warn(&intf->dev, "Could not register video device\n");
+		goto err_all;
+	}
+	usb_set_intfdata(intf, radio);
+
+	return 0;
+err_all:
+	kfree(radio->buffer);
+err_video:
+	video_device_release(radio->videodev);
+err_intbuffer:
+	kfree(radio->int_in_buffer);
+err_radio:
+	kfree(radio);
+err_initial:
+	return retval;
+}
+
+
+/*
+ * si470x_usb_driver_suspend - suspend the device
+ */
+static int si470x_usb_driver_suspend(struct usb_interface *intf,
+		pm_message_t message)
+{
+	dev_info(&intf->dev, "suspending now...\n");
+
+	return 0;
+}
+
+
+/*
+ * si470x_usb_driver_resume - resume the device
+ */
+static int si470x_usb_driver_resume(struct usb_interface *intf)
+{
+	dev_info(&intf->dev, "resuming now...\n");
+
+	return 0;
+}
+
+
+/*
+ * si470x_usb_driver_disconnect - disconnect the device
+ */
+static void si470x_usb_driver_disconnect(struct usb_interface *intf)
+{
+	struct si470x_device *radio = usb_get_intfdata(intf);
+
+	mutex_lock(&radio->disconnect_lock);
+	radio->disconnected = 1;
+	usb_set_intfdata(intf, NULL);
+	if (radio->users == 0) {
+		/* set led to disconnect state */
+		si470x_set_led_state(radio, BLINK_ORANGE_LED);
+
+		/* Free data structures. */
+		usb_free_urb(radio->int_in_urb);
+
+		kfree(radio->int_in_buffer);
+		video_unregister_device(radio->videodev);
+		kfree(radio->buffer);
+		kfree(radio);
+	}
+	mutex_unlock(&radio->disconnect_lock);
+}
+
+
+/*
+ * si470x_usb_driver - usb driver interface
+ */
+static struct usb_driver si470x_usb_driver = {
+	.name			= DRIVER_NAME,
+	.probe			= si470x_usb_driver_probe,
+	.disconnect		= si470x_usb_driver_disconnect,
+	.suspend		= si470x_usb_driver_suspend,
+	.resume			= si470x_usb_driver_resume,
+	.id_table		= si470x_usb_driver_id_table,
+	.supports_autosuspend	= 1,
+};
+
+
+
+/**************************************************************************
+ * Module Interface
+ **************************************************************************/
+
+/*
+ * si470x_module_init - module init
+ */
+static int __init si470x_module_init(void)
+{
+	printk(KERN_INFO DRIVER_DESC ", Version " DRIVER_VERSION "\n");
+	return usb_register(&si470x_usb_driver);
+}
+
+
+/*
+ * si470x_module_exit - module exit
+ */
+static void __exit si470x_module_exit(void)
+{
+	usb_deregister(&si470x_usb_driver);
+}
+
+
+module_init(si470x_module_init);
+module_exit(si470x_module_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR(DRIVER_AUTHOR);
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_VERSION(DRIVER_VERSION);
diff --git a/linux/drivers/media/radio/si470x/radio-si470x.h b/linux/drivers/media/radio/si470x/radio-si470x.h
new file mode 100644
index 000000000..f931789c2
--- /dev/null
+++ b/linux/drivers/media/radio/si470x/radio-si470x.h
@@ -0,0 +1,226 @@
+/*
+ *  drivers/media/radio/si470x/radio-si470x.h
+ *
+ *  Driver for radios with Silicon Labs Si470x FM Radio Receivers
+ *
+ *  Copyright (c) 2009 Tobias Lorenz <tobias.lorenz@gmx.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+/* driver definitions */
+#define DRIVER_NAME "radio-si470x"
+
+
+/* kernel includes */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/smp_lock.h>
+#include <linux/input.h>
+#include <linux/version.h>
+#include "compat.h"
+#include <linux/videodev2.h>
+#include <linux/mutex.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
+#include <media/rds.h>
+#include <asm/unaligned.h>
+
+
+
+/**************************************************************************
+ * Register Definitions
+ **************************************************************************/
+#define RADIO_REGISTER_SIZE	2	/* 16 register bit width */
+#define RADIO_REGISTER_NUM	16	/* DEVICEID   ... RDSD */
+#define RDS_REGISTER_NUM	6	/* STATUSRSSI ... RDSD */
+
+#define DEVICEID		0	/* Device ID */
+#define DEVICEID_PN		0xf000	/* bits 15..12: Part Number */
+#define DEVICEID_MFGID		0x0fff	/* bits 11..00: Manufacturer ID */
+
+#define CHIPID			1	/* Chip ID */
+#define CHIPID_REV		0xfc00	/* bits 15..10: Chip Version */
+#define CHIPID_DEV		0x0200	/* bits 09..09: Device */
+#define CHIPID_FIRMWARE		0x01ff	/* bits 08..00: Firmware Version */
+
+#define POWERCFG		2	/* Power Configuration */
+#define POWERCFG_DSMUTE		0x8000	/* bits 15..15: Softmute Disable */
+#define POWERCFG_DMUTE		0x4000	/* bits 14..14: Mute Disable */
+#define POWERCFG_MONO		0x2000	/* bits 13..13: Mono Select */
+#define POWERCFG_RDSM		0x0800	/* bits 11..11: RDS Mode (Si4701 only) */
+#define POWERCFG_SKMODE		0x0400	/* bits 10..10: Seek Mode */
+#define POWERCFG_SEEKUP		0x0200	/* bits 09..09: Seek Direction */
+#define POWERCFG_SEEK		0x0100	/* bits 08..08: Seek */
+#define POWERCFG_DISABLE	0x0040	/* bits 06..06: Powerup Disable */
+#define POWERCFG_ENABLE		0x0001	/* bits 00..00: Powerup Enable */
+
+#define CHANNEL			3	/* Channel */
+#define CHANNEL_TUNE		0x8000	/* bits 15..15: Tune */
+#define CHANNEL_CHAN		0x03ff	/* bits 09..00: Channel Select */
+
+#define SYSCONFIG1		4	/* System Configuration 1 */
+#define SYSCONFIG1_RDSIEN	0x8000	/* bits 15..15: RDS Interrupt Enable (Si4701 only) */
+#define SYSCONFIG1_STCIEN	0x4000	/* bits 14..14: Seek/Tune Complete Interrupt Enable */
+#define SYSCONFIG1_RDS		0x1000	/* bits 12..12: RDS Enable (Si4701 only) */
+#define SYSCONFIG1_DE		0x0800	/* bits 11..11: De-emphasis (0=75us 1=50us) */
+#define SYSCONFIG1_AGCD		0x0400	/* bits 10..10: AGC Disable */
+#define SYSCONFIG1_BLNDADJ	0x00c0	/* bits 07..06: Stereo/Mono Blend Level Adjustment */
+#define SYSCONFIG1_GPIO3	0x0030	/* bits 05..04: General Purpose I/O 3 */
+#define SYSCONFIG1_GPIO2	0x000c	/* bits 03..02: General Purpose I/O 2 */
+#define SYSCONFIG1_GPIO1	0x0003	/* bits 01..00: General Purpose I/O 1 */
+
+#define SYSCONFIG2		5	/* System Configuration 2 */
+#define SYSCONFIG2_SEEKTH	0xff00	/* bits 15..08: RSSI Seek Threshold */
+#define SYSCONFIG2_BAND		0x0080	/* bits 07..06: Band Select */
+#define SYSCONFIG2_SPACE	0x0030	/* bits 05..04: Channel Spacing */
+#define SYSCONFIG2_VOLUME	0x000f	/* bits 03..00: Volume */
+
+#define SYSCONFIG3		6	/* System Configuration 3 */
+#define SYSCONFIG3_SMUTER	0xc000	/* bits 15..14: Softmute Attack/Recover Rate */
+#define SYSCONFIG3_SMUTEA	0x3000	/* bits 13..12: Softmute Attenuation */
+#define SYSCONFIG3_SKSNR	0x00f0	/* bits 07..04: Seek SNR Threshold */
+#define SYSCONFIG3_SKCNT	0x000f	/* bits 03..00: Seek FM Impulse Detection Threshold */
+
+#define TEST1			7	/* Test 1 */
+#define TEST1_AHIZEN		0x4000	/* bits 14..14: Audio High-Z Enable */
+
+#define TEST2			8	/* Test 2 */
+/* TEST2 only contains reserved bits */
+
+#define BOOTCONFIG		9	/* Boot Configuration */
+/* BOOTCONFIG only contains reserved bits */
+
+#define STATUSRSSI		10	/* Status RSSI */
+#define STATUSRSSI_RDSR		0x8000	/* bits 15..15: RDS Ready (Si4701 only) */
+#define STATUSRSSI_STC		0x4000	/* bits 14..14: Seek/Tune Complete */
+#define STATUSRSSI_SF		0x2000	/* bits 13..13: Seek Fail/Band Limit */
+#define STATUSRSSI_AFCRL	0x1000	/* bits 12..12: AFC Rail */
+#define STATUSRSSI_RDSS		0x0800	/* bits 11..11: RDS Synchronized (Si4701 only) */
+#define STATUSRSSI_BLERA	0x0600	/* bits 10..09: RDS Block A Errors (Si4701 only) */
+#define STATUSRSSI_ST		0x0100	/* bits 08..08: Stereo Indicator */
+#define STATUSRSSI_RSSI		0x00ff	/* bits 07..00: RSSI (Received Signal Strength Indicator) */
+
+#define READCHAN		11	/* Read Channel */
+#define READCHAN_BLERB		0xc000	/* bits 15..14: RDS Block D Errors (Si4701 only) */
+#define READCHAN_BLERC		0x3000	/* bits 13..12: RDS Block C Errors (Si4701 only) */
+#define READCHAN_BLERD		0x0c00	/* bits 11..10: RDS Block B Errors (Si4701 only) */
+#define READCHAN_READCHAN	0x03ff	/* bits 09..00: Read Channel */
+
+#define RDSA			12	/* RDSA */
+#define RDSA_RDSA		0xffff	/* bits 15..00: RDS Block A Data (Si4701 only) */
+
+#define RDSB			13	/* RDSB */
+#define RDSB_RDSB		0xffff	/* bits 15..00: RDS Block B Data (Si4701 only) */
+
+#define RDSC			14	/* RDSC */
+#define RDSC_RDSC		0xffff	/* bits 15..00: RDS Block C Data (Si4701 only) */
+
+#define RDSD			15	/* RDSD */
+#define RDSD_RDSD		0xffff	/* bits 15..00: RDS Block D Data (Si4701 only) */
+
+
+
+/**************************************************************************
+ * General Driver Definitions
+ **************************************************************************/
+
+/*
+ * si470x_device - private data
+ */
+struct si470x_device {
+	struct video_device *videodev;
+
+	/* driver management */
+	unsigned int users;
+
+	/* Silabs internal registers (0..15) */
+	unsigned short registers[RADIO_REGISTER_NUM];
+
+	/* RDS receive buffer */
+	wait_queue_head_t read_queue;
+	struct mutex lock;		/* buffer locking */
+	unsigned char *buffer;		/* size is always multiple of three */
+	unsigned int buf_size;
+	unsigned int rd_index;
+	unsigned int wr_index;
+
+#if defined(CONFIG_USB_SI470X) || defined(CONFIG_USB_SI470X_MODULE)
+	/* reference to USB and video device */
+	struct usb_device *usbdev;
+	struct usb_interface *intf;
+
+	/* Interrupt endpoint handling */
+	char *int_in_buffer;
+	struct usb_endpoint_descriptor *int_in_endpoint;
+	struct urb *int_in_urb;
+	int int_in_running;
+
+	/* scratch page */
+	unsigned char software_version;
+	unsigned char hardware_version;
+
+	/* driver management */
+	unsigned char disconnected;
+	struct mutex disconnect_lock;
+#endif
+
+#if defined(CONFIG_I2C_SI470X) || defined(CONFIG_I2C_SI470X_MODULE)
+	struct i2c_client *client;
+#endif
+};
+
+
+
+/**************************************************************************
+ * Firmware Versions
+ **************************************************************************/
+
+#define RADIO_FW_VERSION	15
+
+
+
+/**************************************************************************
+ * Frequency Multiplicator
+ **************************************************************************/
+
+/*
+ * The frequency is set in units of 62.5 Hz when using V4L2_TUNER_CAP_LOW,
+ * 62.5 kHz otherwise.
+ * The tuner is able to have a channel spacing of 50, 100 or 200 kHz.
+ * tuner->capability is therefore set to V4L2_TUNER_CAP_LOW
+ * The FREQ_MUL is then: 1 MHz / 62.5 Hz = 16000
+ */
+#define FREQ_MUL (1000000 / 62.5)
+
+
+
+/**************************************************************************
+ * Common Functions
+ **************************************************************************/
+extern const struct v4l2_file_operations si470x_fops;
+extern struct video_device si470x_viddev_template;
+int si470x_get_register(struct si470x_device *radio, int regnr);
+int si470x_set_register(struct si470x_device *radio, int regnr);
+int si470x_disconnect_check(struct si470x_device *radio);
+int si470x_set_freq(struct si470x_device *radio, unsigned int freq);
+int si470x_start(struct si470x_device *radio);
+int si470x_stop(struct si470x_device *radio);
+int si470x_rds_on(struct si470x_device *radio);
+int si470x_vidioc_querycap(struct file *file, void *priv,
+		struct v4l2_capability *capability);
diff --git a/linux/drivers/media/video/Kconfig b/linux/drivers/media/video/Kconfig
index 8460013a0..e8a6e4de4 100644
--- a/linux/drivers/media/video/Kconfig
+++ b/linux/drivers/media/video/Kconfig
@@ -991,6 +991,8 @@ source "drivers/media/video/pwc/Kconfig"
 config USB_ZR364XX
 	tristate "USB ZR364XX Camera support"
 	depends on VIDEO_V4L2
+	select VIDEOBUF_GEN
+	select VIDEOBUF_VMALLOC
 	---help---
 	  Say Y here if you want to connect this type of camera to your
 	  computer's USB port.
diff --git a/linux/drivers/media/video/em28xx/em28xx-cards.c b/linux/drivers/media/video/em28xx/em28xx-cards.c
index 2f4777f76..4b7526fa2 100644
--- a/linux/drivers/media/video/em28xx/em28xx-cards.c
+++ b/linux/drivers/media/video/em28xx/em28xx-cards.c
@@ -231,7 +231,7 @@ static struct em28xx_reg_seq silvercrest_reg_seq[] = {
 struct em28xx_board em28xx_boards[] = {
 	[EM2750_BOARD_UNKNOWN] = {
 		.name          = "EM2710/EM2750/EM2751 webcam grabber",
-		.xclk          = EM28XX_XCLK_FREQUENCY_48MHZ,
+		.xclk          = EM28XX_XCLK_FREQUENCY_20MHZ,
 		.tuner_type    = TUNER_ABSENT,
 		.is_webcam     = 1,
 		.no_audio      = 1,
@@ -1613,6 +1613,8 @@ struct usb_device_id em28xx_id_table[] = {
 			.driver_info = EM2750_BOARD_UNKNOWN },
 	{ USB_DEVICE(0xeb1a, 0x2800),
 			.driver_info = EM2800_BOARD_UNKNOWN },
+	{ USB_DEVICE(0xeb1a, 0x2710),
+			.driver_info = EM2820_BOARD_UNKNOWN },
 	{ USB_DEVICE(0xeb1a, 0x2820),
 			.driver_info = EM2820_BOARD_UNKNOWN },
 	{ USB_DEVICE(0xeb1a, 0x2821),
@@ -1836,6 +1838,7 @@ static int em28xx_hint_sensor(struct em28xx *dev)
 	__be16 version_be;
 	u16 version;
 
+	/* Micron sensor detection */
 	dev->i2c_client.addr = 0xba >> 1;
 	cmd = 0;
 	i2c_master_send(&dev->i2c_client, &cmd, 1);
@@ -1844,16 +1847,27 @@ static int em28xx_hint_sensor(struct em28xx *dev)
 		return -EINVAL;
 
 	version = be16_to_cpu(version_be);
-
 	switch (version) {
 	case 0x8232:		/* mt9v011 640x480 1.3 Mpix sensor */
 	case 0x8243:		/* mt9v011 rev B 640x480 1.3 Mpix sensor */
 		dev->model = EM2820_BOARD_SILVERCREST_WEBCAM;
+		em28xx_set_model(dev);
+
 		sensor_name = "mt9v011";
 		dev->em28xx_sensor = EM28XX_MT9V011;
 		dev->sensor_xres = 640;
 		dev->sensor_yres = 480;
-		dev->sensor_xtal = 6300000;
+		/*
+		 * FIXME: mt9v011 uses I2S speed as xtal clk - at least with
+		 * the Silvercrest cam I have here for testing - for higher
+		 * resolutions, a high clock cause horizontal artifacts, so we
+		 * need to use a lower xclk frequency.
+		 * Yet, it would be possible to adjust xclk depending on the
+		 * desired resolution, since this affects directly the
+		 * frame rate.
+		 */
+		dev->board.xclk = EM28XX_XCLK_FREQUENCY_4_3MHZ;
+		dev->sensor_xtal = 4300000;
 
 		/* probably means GRGB 16 bit bayer */
 		dev->vinmode = 0x0d;
@@ -1866,6 +1880,8 @@ static int em28xx_hint_sensor(struct em28xx *dev)
 #endif
 	case 0x8431:
 		dev->model = EM2750_BOARD_UNKNOWN;
+		em28xx_set_model(dev);
+
 		sensor_name = "mt9m001";
 		dev->em28xx_sensor = EM28XX_MT9M001;
 		em28xx_initialize_mt9m001(dev);
@@ -1882,6 +1898,9 @@ static int em28xx_hint_sensor(struct em28xx *dev)
 		return -EINVAL;
 	}
 
+	/* Setup webcam defaults */
+	em28xx_pre_card_setup(dev);
+
 	em28xx_errdev("Sensor is %s, using model %s entry.\n",
 		      sensor_name, em28xx_boards[dev->model].name);
 
@@ -1893,60 +1912,6 @@ static int em28xx_hint_sensor(struct em28xx *dev)
  */
 void em28xx_pre_card_setup(struct em28xx *dev)
 {
-	int rc;
-
-	em28xx_set_model(dev);
-
-	em28xx_info("Identified as %s (card=%d)\n",
-		    dev->board.name, dev->model);
-
-	/* Set the default GPO/GPIO for legacy devices */
-	dev->reg_gpo_num = EM2880_R04_GPO;
-	dev->reg_gpio_num = EM28XX_R08_GPIO;
-
-	dev->wait_after_write = 5;
-
-	/* Based on the Chip ID, set the device configuration */
-	rc = em28xx_read_reg(dev, EM28XX_R0A_CHIPID);
-	if (rc > 0) {
-		dev->chip_id = rc;
-
-		switch (dev->chip_id) {
-		case CHIP_ID_EM2750:
-			em28xx_info("chip ID is em2750\n");
-			break;
-		case CHIP_ID_EM2820:
-			em28xx_info("chip ID is em2710 or em2820\n");
-			break;
-		case CHIP_ID_EM2840:
-			em28xx_info("chip ID is em2840\n");
-			break;
-		case CHIP_ID_EM2860:
-			em28xx_info("chip ID is em2860\n");
-			break;
-		case CHIP_ID_EM2870:
-			em28xx_info("chip ID is em2870\n");
-			dev->wait_after_write = 0;
-			break;
-		case CHIP_ID_EM2874:
-			em28xx_info("chip ID is em2874\n");
-			dev->reg_gpio_num = EM2874_R80_GPIO;
-			dev->wait_after_write = 0;
-			break;
-		case CHIP_ID_EM2883:
-			em28xx_info("chip ID is em2882/em2883\n");
-			dev->wait_after_write = 0;
-			break;
-		default:
-			em28xx_info("em28xx chip ID = %d\n", dev->chip_id);
-		}
-	}
-
-	/* Prepopulate cached GPO register content */
-	rc = em28xx_read_reg(dev, dev->reg_gpo_num);
-	if (rc >= 0)
-		dev->reg_gpo = rc;
-
 	/* Set the initial XCLK and I2C clock values based on the board
 	   definition */
 	em28xx_write_reg(dev, EM28XX_R0F_XCLK, dev->board.xclk & 0x7f);
@@ -2329,7 +2294,20 @@ void em28xx_register_i2c_ir(struct em28xx *dev)
 
 void em28xx_card_setup(struct em28xx *dev)
 {
-	em28xx_set_model(dev);
+	/*
+	 * If the device can be a webcam, seek for a sensor.
+	 * If sensor is not found, then it isn't a webcam.
+	 */
+	if (dev->board.is_webcam) {
+		if (em28xx_hint_sensor(dev) < 0)
+			dev->board.is_webcam = 0;
+		else
+			dev->progressive = 1;
+	} else
+		em28xx_set_model(dev);
+
+	em28xx_info("Identified as %s (card=%d)\n",
+		    dev->board.name, dev->model);
 
 	dev->tuner_type = em28xx_boards[dev->model].tuner_type;
 	if (em28xx_boards[dev->model].tuner_addr)
@@ -2403,10 +2381,6 @@ void em28xx_card_setup(struct em28xx *dev)
 		em28xx_gpio_set(dev, dev->board.tuner_gpio);
 		em28xx_set_mode(dev, EM28XX_ANALOG_MODE);
 		break;
-	case EM2820_BOARD_SILVERCREST_WEBCAM:
-		/* FIXME: need to document the registers bellow */
-		em28xx_write_reg(dev, 0x0d, 0x42);
-		em28xx_write_reg(dev, 0x13, 0x08);
 	}
 
 	if (dev->board.has_snapshot_button)
@@ -2563,7 +2537,7 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
 			   int minor)
 {
 	struct em28xx *dev = *devhandle;
-	int retval = -ENOMEM;
+	int retval;
 	int errCode;
 
 	dev->udev = udev;
@@ -2580,6 +2554,58 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
 	dev->em28xx_read_reg_req = em28xx_read_reg_req;
 	dev->board.is_em2800 = em28xx_boards[dev->model].is_em2800;
 
+	em28xx_set_model(dev);
+
+	/* Set the default GPO/GPIO for legacy devices */
+	dev->reg_gpo_num = EM2880_R04_GPO;
+	dev->reg_gpio_num = EM28XX_R08_GPIO;
+
+	dev->wait_after_write = 5;
+
+	/* Based on the Chip ID, set the device configuration */
+	retval = em28xx_read_reg(dev, EM28XX_R0A_CHIPID);
+	if (retval > 0) {
+		dev->chip_id = retval;
+
+		switch (dev->chip_id) {
+		case CHIP_ID_EM2710:
+			em28xx_info("chip ID is em2710\n");
+			break;
+		case CHIP_ID_EM2750:
+			em28xx_info("chip ID is em2750\n");
+			break;
+		case CHIP_ID_EM2820:
+			em28xx_info("chip ID is em2820 (or em2710)\n");
+			break;
+		case CHIP_ID_EM2840:
+			em28xx_info("chip ID is em2840\n");
+			break;
+		case CHIP_ID_EM2860:
+			em28xx_info("chip ID is em2860\n");
+			break;
+		case CHIP_ID_EM2870:
+			em28xx_info("chip ID is em2870\n");
+			dev->wait_after_write = 0;
+			break;
+		case CHIP_ID_EM2874:
+			em28xx_info("chip ID is em2874\n");
+			dev->reg_gpio_num = EM2874_R80_GPIO;
+			dev->wait_after_write = 0;
+			break;
+		case CHIP_ID_EM2883:
+			em28xx_info("chip ID is em2882/em2883\n");
+			dev->wait_after_write = 0;
+			break;
+		default:
+			em28xx_info("em28xx chip ID = %d\n", dev->chip_id);
+		}
+	}
+
+	/* Prepopulate cached GPO register content */
+	retval = em28xx_read_reg(dev, dev->reg_gpo_num);
+	if (retval >= 0)
+		dev->reg_gpo = retval;
+
 	em28xx_pre_card_setup(dev);
 
 	if (!dev->board.is_em2800) {
@@ -2614,14 +2640,6 @@ static int em28xx_init_dev(struct em28xx **devhandle, struct usb_device *udev,
 	dev->vinmode = 0x10;
 	dev->vinctl  = 0x11;
 
-	/*
-	 * If the device can be a webcam, seek for a sensor.
-	 * If sensor is not found, then it isn't a webcam.
-	 */
-	if (dev->board.is_webcam)
-		if (em28xx_hint_sensor(dev) < 0)
-			dev->board.is_webcam = 0;
-
 	/* Do board specific init and eeprom reading */
 	em28xx_card_setup(dev);
 
diff --git a/linux/drivers/media/video/em28xx/em28xx-core.c b/linux/drivers/media/video/em28xx/em28xx-core.c
index a1de593ec..46cb13182 100644
--- a/linux/drivers/media/video/em28xx/em28xx-core.c
+++ b/linux/drivers/media/video/em28xx/em28xx-core.c
@@ -632,6 +632,9 @@ int em28xx_capture_start(struct em28xx *dev, int start)
 		return rc;
 	}
 
+	if (dev->board.is_webcam)
+		rc = em28xx_write_reg(dev, 0x13, 0x0c);
+
 	/* enable video capture */
 	rc = em28xx_write_reg(dev, 0x48, 0x00);
 
@@ -720,7 +723,10 @@ int em28xx_resolution_set(struct em28xx *dev)
 {
 	int width, height;
 	width = norm_maxw(dev);
-	height = norm_maxh(dev) >> 1;
+	height = norm_maxh(dev);
+
+	if (!dev->progressive)
+		height >>= norm_maxh(dev);
 
 	em28xx_set_outfmt(dev);
 
diff --git a/linux/drivers/media/video/em28xx/em28xx-reg.h b/linux/drivers/media/video/em28xx/em28xx-reg.h
index a2676d63c..6bf84bd78 100644
--- a/linux/drivers/media/video/em28xx/em28xx-reg.h
+++ b/linux/drivers/media/video/em28xx/em28xx-reg.h
@@ -176,7 +176,8 @@
 
 /* FIXME: Need to be populated with the other chip ID's */
 enum em28xx_chip_id {
-	CHIP_ID_EM2820 = 18,	/* Also used by em2710 */
+	CHIP_ID_EM2710 = 17,
+	CHIP_ID_EM2820 = 18,	/* Also used by some em2710 */
 	CHIP_ID_EM2840 = 20,
 	CHIP_ID_EM2750 = 33,
 	CHIP_ID_EM2860 = 34,
diff --git a/linux/drivers/media/video/em28xx/em28xx-video.c b/linux/drivers/media/video/em28xx/em28xx-video.c
index 258cd38ce..c7d723a03 100644
--- a/linux/drivers/media/video/em28xx/em28xx-video.c
+++ b/linux/drivers/media/video/em28xx/em28xx-video.c
@@ -212,15 +212,24 @@ static void em28xx_copy_video(struct em28xx *dev,
 	startread = p;
 	remain = len;
 
-	/* Interlaces frame */
-	if (buf->top_field)
+	if (dev->progressive)
 		fieldstart = outp;
-	else
-		fieldstart = outp + bytesperline;
+	else {
+		/* Interlaces two half frames */
+		if (buf->top_field)
+			fieldstart = outp;
+		else
+			fieldstart = outp + bytesperline;
+	}
 
 	linesdone = dma_q->pos / bytesperline;
 	currlinedone = dma_q->pos % bytesperline;
-	offset = linesdone * bytesperline * 2 + currlinedone;
+
+	if (dev->progressive)
+		offset = linesdone * bytesperline + currlinedone;
+	else
+		offset = linesdone * bytesperline * 2 + currlinedone;
+
 	startwrite = fieldstart + offset;
 	lencopy = bytesperline - currlinedone;
 	lencopy = lencopy > remain ? remain : lencopy;
@@ -398,7 +407,7 @@ static inline int em28xx_isoc_copy(struct em28xx *dev, struct urb *urb)
 			em28xx_isocdbg("Video frame %d, length=%i, %s\n", p[2],
 				       len, (p[2] & 1) ? "odd" : "even");
 
-			if (!(p[2] & 1)) {
+			if (dev->progressive || !(p[2] & 1)) {
 				if (buf != NULL)
 					buffer_filled(dev, dma_q, buf);
 				get_next_buf(dma_q, &buf);
@@ -742,7 +751,10 @@ static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 	f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
 
 	/* FIXME: TOP? NONE? BOTTOM? ALTENATE? */
-	f->fmt.pix.field = dev->interlaced ?
+	if (dev->progressive)
+		f->fmt.pix.field = V4L2_FIELD_NONE;
+	else
+		f->fmt.pix.field = dev->interlaced ?
 			   V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
 
 	mutex_unlock(&dev->lock);
@@ -806,7 +818,11 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 	f->fmt.pix.bytesperline = (dev->width * fmt->depth + 7) >> 3;
 	f->fmt.pix.sizeimage = f->fmt.pix.bytesperline * height;
 	f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
-	f->fmt.pix.field = V4L2_FIELD_INTERLACED;
+	if (dev->progressive)
+		f->fmt.pix.field = V4L2_FIELD_NONE;
+	else
+		f->fmt.pix.field = dev->interlaced ?
+			   V4L2_FIELD_INTERLACED : V4L2_FIELD_TOP;
 
 	return 0;
 }
@@ -899,6 +915,41 @@ static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id *norm)
 	return 0;
 }
 
+static int vidioc_g_parm(struct file *file, void *priv,
+			 struct v4l2_streamparm *p)
+{
+	struct em28xx_fh   *fh  = priv;
+	struct em28xx      *dev = fh->dev;
+	int rc = 0;
+
+	if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	if (dev->board.is_webcam)
+		rc = v4l2_device_call_until_err(&dev->v4l2_dev, 0,
+						video, g_parm, p);
+	else
+		v4l2_video_std_frame_period(dev->norm,
+						 &p->parm.capture.timeperframe);
+
+	return rc;
+}
+
+static int vidioc_s_parm(struct file *file, void *priv,
+			 struct v4l2_streamparm *p)
+{
+	struct em28xx_fh   *fh  = priv;
+	struct em28xx      *dev = fh->dev;
+
+	if (!dev->board.is_webcam)
+		return -EINVAL;
+
+	if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	return v4l2_device_call_until_err(&dev->v4l2_dev, 0, video, s_parm, p);
+}
+
 static const char *iname[] = {
 	[EM28XX_VMUX_COMPOSITE1] = "Composite1",
 	[EM28XX_VMUX_COMPOSITE2] = "Composite2",
@@ -1291,8 +1342,9 @@ static int vidioc_g_register(struct file *file, void *priv,
 		v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg);
 		return 0;
 	case V4L2_CHIP_MATCH_I2C_ADDR:
-		/* Not supported yet */
-		return -EINVAL;
+		/* TODO: is this correct? */
+		v4l2_device_call_all(&dev->v4l2_dev, 0, core, g_register, reg);
+		return 0;
 	default:
 		if (!v4l2_chip_match_host(&reg->match))
 			return -EINVAL;
@@ -1343,8 +1395,9 @@ static int vidioc_s_register(struct file *file, void *priv,
 		v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg);
 		return 0;
 	case V4L2_CHIP_MATCH_I2C_ADDR:
-		/* Not supported yet */
-		return -EINVAL;
+		/* TODO: is this correct? */
+		v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_register, reg);
+		return 0;
 	default:
 		if (!v4l2_chip_match_host(&reg->match))
 			return -EINVAL;
@@ -1730,6 +1783,7 @@ static int em28xx_v4l2_open(struct file *filp)
 	struct em28xx *dev;
 	enum v4l2_buf_type fh_type;
 	struct em28xx_fh *fh;
+	enum v4l2_field field;
 
 	dev = em28xx_get_device(minor, &fh_type, &radio);
 
@@ -1786,8 +1840,13 @@ static int em28xx_v4l2_open(struct file *filp)
 
 	dev->users++;
 
+	if (dev->progressive)
+		field = V4L2_FIELD_NONE;
+	else
+		field = V4L2_FIELD_INTERLACED;
+
 	videobuf_queue_vmalloc_init(&fh->vb_vidq, &em28xx_video_qops,
-			NULL, &dev->slock, fh->type, V4L2_FIELD_INTERLACED,
+			NULL, &dev->slock, fh->type, field,
 			sizeof(struct em28xx_buffer), fh);
 
 	mutex_unlock(&dev->lock);
@@ -2011,6 +2070,8 @@ static const struct v4l2_ioctl_ops video_ioctl_ops = {
 	.vidioc_qbuf                = vidioc_qbuf,
 	.vidioc_dqbuf               = vidioc_dqbuf,
 	.vidioc_s_std               = vidioc_s_std,
+	.vidioc_g_parm		    = vidioc_g_parm,
+	.vidioc_s_parm		    = vidioc_s_parm,
 	.vidioc_enum_input          = vidioc_enum_input,
 	.vidioc_g_input             = vidioc_g_input,
 	.vidioc_s_input             = vidioc_s_input,
diff --git a/linux/drivers/media/video/em28xx/em28xx.h b/linux/drivers/media/video/em28xx/em28xx.h
index 3c4cd00b2..c76da6985 100644
--- a/linux/drivers/media/video/em28xx/em28xx.h
+++ b/linux/drivers/media/video/em28xx/em28xx.h
@@ -494,6 +494,9 @@ struct em28xx {
 	int sensor_xres, sensor_yres;
 	int sensor_xtal;
 
+	/* Allows progressive (e. g. non-interlaced) mode */
+	int progressive;
+
 	/* Vinmode/Vinctl used at the driver */
 	int vinmode, vinctl;
 
diff --git a/linux/drivers/media/video/gspca/m5602/m5602_s5k83a.c b/linux/drivers/media/video/gspca/m5602/m5602_s5k83a.c
index 7127321ac..6b89f33a4 100644
--- a/linux/drivers/media/video/gspca/m5602/m5602_s5k83a.c
+++ b/linux/drivers/media/video/gspca/m5602/m5602_s5k83a.c
@@ -178,8 +178,10 @@ sensor_found:
 
 	sens_priv->settings =
 	kmalloc(sizeof(s32)*ARRAY_SIZE(s5k83a_ctrls), GFP_KERNEL);
-	if (!sens_priv->settings)
+	if (!sens_priv->settings) {
+		kfree(sens_priv);
 		return -ENOMEM;
+	}
 
 	sd->gspca_dev.cam.cam_mode = s5k83a_modes;
 	sd->gspca_dev.cam.nmodes = ARRAY_SIZE(s5k83a_modes);
diff --git a/linux/drivers/media/video/hdpvr/hdpvr-video.c b/linux/drivers/media/video/hdpvr/hdpvr-video.c
index 5937de23c..2eb9dc2eb 100644
--- a/linux/drivers/media/video/hdpvr/hdpvr-video.c
+++ b/linux/drivers/media/video/hdpvr/hdpvr-video.c
@@ -1222,6 +1222,8 @@ static const struct video_device hdpvr_video_template = {
 		V4L2_STD_PAL_G | V4L2_STD_PAL_H | V4L2_STD_PAL_I |
 		V4L2_STD_PAL_D | V4L2_STD_PAL_M | V4L2_STD_PAL_N |
 		V4L2_STD_PAL_60,
+	.current_norm 		= V4L2_STD_NTSC | V4L2_STD_PAL_M |
+		V4L2_STD_PAL_60,
 };
 
 int hdpvr_register_videodev(struct hdpvr_device *dev, struct device *parent,
diff --git a/linux/drivers/media/video/mt9v011.c b/linux/drivers/media/video/mt9v011.c
index c9706b889..70d359d84 100644
--- a/linux/drivers/media/video/mt9v011.c
+++ b/linux/drivers/media/video/mt9v011.c
@@ -62,13 +62,34 @@ static struct v4l2_queryctrl mt9v011_qctrl[] = {
 		.step = 1,
 		.default_value = 0,
 		.flags = 0,
-	},
+	}, {
+		.id      = V4L2_CID_HFLIP,
+		.type    = V4L2_CTRL_TYPE_BOOLEAN,
+		.name    = "Mirror",
+		.minimum = 0,
+		.maximum = 1,
+		.step    = 1,
+		.default_value = 0,
+		.flags = 0,
+	}, {
+		.id      = V4L2_CID_VFLIP,
+		.type    = V4L2_CTRL_TYPE_BOOLEAN,
+		.name    = "Vflip",
+		.minimum = 0,
+		.maximum = 1,
+		.step    = 1,
+		.default_value = 0,
+		.flags = 0,
+	}, {
+	}
 };
 
 struct mt9v011 {
 	struct v4l2_subdev sd;
 	unsigned width, height;
 	unsigned xtal;
+	unsigned hflip:1;
+	unsigned vflip:1;
 
 	u16 global_gain, red_bal, blue_bal;
 };
@@ -141,7 +162,6 @@ static const struct i2c_reg_value mt9v011_init_default[] = {
 
 		{ R0A_MT9V011_CLK_SPEED, 0x0000 },
 		{ R1E_MT9V011_DIGITAL_ZOOM,  0x0000 },
-		{ R20_MT9V011_READ_MODE, 0x1000 },
 
 		{ R07_MT9V011_OUT_CTRL, 0x0002 },	/* chip enable */
 };
@@ -166,7 +186,7 @@ static void set_balance(struct v4l2_subdev *sd)
 	mt9v011_write(sd, R2D_MT9V011_RED_GAIN, red_gain);
 }
 
-static void calc_fps(struct v4l2_subdev *sd)
+static void calc_fps(struct v4l2_subdev *sd, u32 *numerator, u32 *denominator)
 {
 	struct mt9v011 *core = to_mt9v011(sd);
 	unsigned height, width, hblank, vblank, speed;
@@ -189,6 +209,51 @@ static void calc_fps(struct v4l2_subdev *sd)
 
 	v4l2_dbg(1, debug, sd, "Programmed to %u.%03u fps (%d pixel clcks)\n",
 		tmp / 1000, tmp % 1000, t_time);
+
+	if (numerator && denominator) {
+		*numerator = 1000;
+		*denominator = (u32)frames_per_ms;
+	}
+}
+
+static u16 calc_speed(struct v4l2_subdev *sd, u32 numerator, u32 denominator)
+{
+	struct mt9v011 *core = to_mt9v011(sd);
+	unsigned height, width, hblank, vblank;
+	unsigned row_time, line_time;
+	u64 t_time, speed;
+
+	/* Avoid bogus calculus */
+	if (!numerator || !denominator)
+		return 0;
+
+	height = mt9v011_read(sd, R03_MT9V011_HEIGHT);
+	width = mt9v011_read(sd, R04_MT9V011_WIDTH);
+	hblank = mt9v011_read(sd, R05_MT9V011_HBLANK);
+	vblank = mt9v011_read(sd, R06_MT9V011_VBLANK);
+
+	row_time = width + 113 + hblank;
+	line_time = height + vblank + 1;
+
+	t_time = core->xtal * ((u64)numerator);
+	/* round to the closest value */
+	t_time += denominator / 2;
+	do_div(t_time, denominator);
+
+	speed = t_time;
+	do_div(speed, row_time * line_time);
+
+	/* Avoid having a negative value for speed */
+	if (speed < 2)
+		speed = 0;
+	else
+		speed -= 2;
+
+	/* Avoid speed overflow */
+	if (speed > 15)
+		return 15;
+
+	return (u16)speed;
 }
 
 static void set_res(struct v4l2_subdev *sd)
@@ -217,9 +282,23 @@ static void set_res(struct v4l2_subdev *sd)
 	mt9v011_write(sd, R03_MT9V011_HEIGHT, core->height);
 	mt9v011_write(sd, R06_MT9V011_VBLANK, 508 - core->height);
 
-	calc_fps(sd);
+	calc_fps(sd, NULL, NULL);
 };
 
+static void set_read_mode(struct v4l2_subdev *sd)
+{
+	struct mt9v011 *core = to_mt9v011(sd);
+	unsigned mode = 0x1000;
+
+	if (core->hflip)
+		mode |= 0x4000;
+
+	if (core->vflip)
+		mode |= 0x8000;
+
+	mt9v011_write(sd, R20_MT9V011_READ_MODE, mode);
+}
+
 static int mt9v011_reset(struct v4l2_subdev *sd, u32 val)
 {
 	int i;
@@ -230,6 +309,7 @@ static int mt9v011_reset(struct v4l2_subdev *sd, u32 val)
 
 	set_balance(sd);
 	set_res(sd);
+	set_read_mode(sd);
 
 	return 0;
 };
@@ -250,6 +330,12 @@ static int mt9v011_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 	case V4L2_CID_BLUE_BALANCE:
 		ctrl->value = core->blue_bal;
 		return 0;
+	case V4L2_CID_HFLIP:
+		ctrl->value = core->hflip ? 1 : 0;
+		return 0;
+	case V4L2_CID_VFLIP:
+		ctrl->value = core->vflip ? 1 : 0;
+		return 0;
 	}
 	return -EINVAL;
 }
@@ -298,6 +384,14 @@ static int mt9v011_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 	case V4L2_CID_BLUE_BALANCE:
 		core->blue_bal = ctrl->value;
 		break;
+	case V4L2_CID_HFLIP:
+		core->hflip = ctrl->value;
+		set_read_mode(sd);
+		return 0;
+	case V4L2_CID_VFLIP:
+		core->vflip = ctrl->value;
+		set_read_mode(sd);
+		return 0;
 	default:
 		return -EINVAL;
 	}
@@ -332,6 +426,44 @@ static int mt9v011_try_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
 	return 0;
 }
 
+static int mt9v011_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms)
+{
+	struct v4l2_captureparm *cp = &parms->parm.capture;
+
+	if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+
+	memset(cp, 0, sizeof(struct v4l2_captureparm));
+	cp->capability = V4L2_CAP_TIMEPERFRAME;
+	calc_fps(sd,
+		 &cp->timeperframe.numerator,
+		 &cp->timeperframe.denominator);
+
+	return 0;
+}
+
+static int mt9v011_s_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *parms)
+{
+	struct v4l2_captureparm *cp = &parms->parm.capture;
+	struct v4l2_fract *tpf = &cp->timeperframe;
+	u16 speed;
+
+	if (parms->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+		return -EINVAL;
+	if (cp->extendedmode != 0)
+		return -EINVAL;
+
+	speed = calc_speed(sd, tpf->numerator, tpf->denominator);
+
+	mt9v011_write(sd, R0A_MT9V011_CLK_SPEED, speed);
+	v4l2_dbg(1, debug, sd, "Setting speed to %d\n", speed);
+
+	/* Recalculate and update fps info */
+	calc_fps(sd, &tpf->numerator, &tpf->denominator);
+
+	return 0;
+}
+
 static int mt9v011_s_fmt(struct v4l2_subdev *sd, struct v4l2_format *fmt)
 {
 	struct v4l2_pix_format *pix = &fmt->fmt.pix;
@@ -429,6 +561,8 @@ static const struct v4l2_subdev_video_ops mt9v011_video_ops = {
 	.enum_fmt = mt9v011_enum_fmt,
 	.try_fmt = mt9v011_try_fmt,
 	.s_fmt = mt9v011_s_fmt,
+	.g_parm = mt9v011_g_parm,
+	.s_parm = mt9v011_s_parm,
 };
 
 static const struct v4l2_subdev_ops mt9v011_ops = {
diff --git a/linux/drivers/media/video/mx1_camera.c b/linux/drivers/media/video/mx1_camera.c
index 2d075205b..736c31d23 100644
--- a/linux/drivers/media/video/mx1_camera.c
+++ b/linux/drivers/media/video/mx1_camera.c
@@ -234,6 +234,7 @@ static int mx1_camera_setup_dma(struct mx1_camera_dev *pcdev)
 	return ret;
 }
 
+/* Called under spinlock_irqsave(&pcdev->lock, ...) */
 static void mx1_videobuf_queue(struct videobuf_queue *vq,
 						struct videobuf_buffer *vb)
 {
@@ -241,13 +242,10 @@ static void mx1_videobuf_queue(struct videobuf_queue *vq,
 	struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
 	struct mx1_camera_dev *pcdev = ici->priv;
 	struct mx1_buffer *buf = container_of(vb, struct mx1_buffer, vb);
-	unsigned long flags;
 
 	dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %d\n", __func__,
 		vb, vb->baddr, vb->bsize);
 
-	spin_lock_irqsave(&pcdev->lock, flags);
-
 	list_add_tail(&vb->queue, &pcdev->capture);
 
 	vb->state = VIDEOBUF_ACTIVE;
@@ -264,8 +262,6 @@ static void mx1_videobuf_queue(struct videobuf_queue *vq,
 			__raw_writel(temp, pcdev->base + CSICR1);
 		}
 	}
-
-	spin_unlock_irqrestore(&pcdev->lock, flags);
 }
 
 static void mx1_videobuf_release(struct videobuf_queue *vq,
diff --git a/linux/drivers/media/video/mx3_camera.c b/linux/drivers/media/video/mx3_camera.c
index e605c076e..9770cb793 100644
--- a/linux/drivers/media/video/mx3_camera.c
+++ b/linux/drivers/media/video/mx3_camera.c
@@ -332,7 +332,10 @@ static enum pixel_fmt fourcc_to_ipu_pix(__u32 fourcc)
 	}
 }
 
-/* Called with .vb_lock held */
+/*
+ * Called with .vb_lock mutex held and
+ * under spinlock_irqsave(&mx3_cam->lock, ...)
+ */
 static void mx3_videobuf_queue(struct videobuf_queue *vq,
 			       struct videobuf_buffer *vb)
 {
@@ -346,7 +349,8 @@ static void mx3_videobuf_queue(struct videobuf_queue *vq,
 	struct idmac_video_param *video = &ichan->params.video;
 	const struct soc_camera_data_format *data_fmt = icd->current_fmt;
 	dma_cookie_t cookie;
-	unsigned long flags;
+
+	BUG_ON(!irqs_disabled());
 
 	/* This is the configuration of one sg-element */
 	video->out_pixel_fmt	= fourcc_to_ipu_pix(data_fmt->fourcc);
@@ -359,8 +363,6 @@ static void mx3_videobuf_queue(struct videobuf_queue *vq,
 	memset((void *)vb->baddr, 0xaa, vb->bsize);
 #endif
 
-	spin_lock_irqsave(&mx3_cam->lock, flags);
-
 	list_add_tail(&vb->queue, &mx3_cam->capture);
 
 	if (!mx3_cam->active) {
@@ -370,24 +372,23 @@ static void mx3_videobuf_queue(struct videobuf_queue *vq,
 		vb->state = VIDEOBUF_QUEUED;
 	}
 
-	spin_unlock_irqrestore(&mx3_cam->lock, flags);
+	spin_unlock_irq(&mx3_cam->lock);
 
 	cookie = txd->tx_submit(txd);
 	dev_dbg(&icd->dev, "Submitted cookie %d DMA 0x%08x\n", cookie, sg_dma_address(&buf->sg));
+
+	spin_lock_irq(&mx3_cam->lock);
+
 	if (cookie >= 0)
 		return;
 
 	/* Submit error */
 	vb->state = VIDEOBUF_PREPARED;
 
-	spin_lock_irqsave(&mx3_cam->lock, flags);
-
 	list_del_init(&vb->queue);
 
 	if (mx3_cam->active == buf)
 		mx3_cam->active = NULL;
-
-	spin_unlock_irqrestore(&mx3_cam->lock, flags);
 }
 
 /* Called with .vb_lock held */
diff --git a/linux/drivers/media/video/pvrusb2/pvrusb2-audio.c b/linux/drivers/media/video/pvrusb2/pvrusb2-audio.c
index 42875ec21..d8c9e6632 100644
--- a/linux/drivers/media/video/pvrusb2/pvrusb2-audio.c
+++ b/linux/drivers/media/video/pvrusb2/pvrusb2-audio.c
@@ -66,9 +66,10 @@ void pvr2_msp3400_subdev_update(struct pvr2_hdw *hdw, struct v4l2_subdev *sd)
 		u32 input;
 
 		pvr2_trace(PVR2_TRACE_CHIPS, "subdev msp3400 v4l2 set_stereo");
+		sp = (sid < ARRAY_SIZE(routing_schemes)) ?
+			routing_schemes[sid] : NULL;
 
-		if ((sid < ARRAY_SIZE(routing_schemes)) &&
-		    ((sp = routing_schemes[sid]) != NULL) &&
+		if ((sp != NULL) &&
 		    (hdw->input_val >= 0) &&
 		    (hdw->input_val < sp->cnt)) {
 			input = sp->def[hdw->input_val];
diff --git a/linux/drivers/media/video/pxa_camera.c b/linux/drivers/media/video/pxa_camera.c
index 3f1b63e4e..92fb8b191 100644
--- a/linux/drivers/media/video/pxa_camera.c
+++ b/linux/drivers/media/video/pxa_camera.c
@@ -624,6 +624,7 @@ static void pxa_camera_stop_capture(struct pxa_camera_dev *pcdev)
 	dev_dbg(pcdev->soc_host.dev, "%s\n", __func__);
 }
 
+/* Called under spinlock_irqsave(&pcdev->lock, ...) */
 static void pxa_videobuf_queue(struct videobuf_queue *vq,
 			       struct videobuf_buffer *vb)
 {
@@ -631,13 +632,10 @@ static void pxa_videobuf_queue(struct videobuf_queue *vq,
 	struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
 	struct pxa_camera_dev *pcdev = ici->priv;
 	struct pxa_buffer *buf = container_of(vb, struct pxa_buffer, vb);
-	unsigned long flags;
 
 	dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %d active=%p\n", __func__,
 		vb, vb->baddr, vb->bsize, pcdev->active);
 
-	spin_lock_irqsave(&pcdev->lock, flags);
-
 	list_add_tail(&vb->queue, &pcdev->capture);
 
 	vb->state = VIDEOBUF_ACTIVE;
@@ -645,8 +643,6 @@ static void pxa_videobuf_queue(struct videobuf_queue *vq,
 
 	if (!pcdev->active)
 		pxa_camera_start_capture(pcdev);
-
-	spin_unlock_irqrestore(&pcdev->lock, flags);
 }
 
 static void pxa_videobuf_release(struct videobuf_queue *vq,
diff --git a/linux/drivers/media/video/saa7134/saa7134-cards.c b/linux/drivers/media/video/saa7134/saa7134-cards.c
index c18b41ee6..3ab7732e6 100644
--- a/linux/drivers/media/video/saa7134/saa7134-cards.c
+++ b/linux/drivers/media/video/saa7134/saa7134-cards.c
@@ -1633,7 +1633,7 @@ struct saa7134_board saa7134_boards[] = {
 		}},
 		.radio = {
 			.name = name_radio,
-			.amux = LINE1,
+			.amux = TV,
 			.gpio = 0x00300001,
 		},
 		.mute = {
@@ -4900,7 +4900,7 @@ struct saa7134_board saa7134_boards[] = {
 		/* Igor Kuznetsov <igk@igk.ru> */
 		.name           = "Beholder BeholdTV H6",
 		.audio_clock    = 0x00187de7,
-		.tuner_type     = TUNER_PHILIPS_FMD1216ME_MK3,
+		.tuner_type     = TUNER_PHILIPS_FMD1216MEX_MK3,
 		.radio_type     = UNSET,
 		.tuner_addr     = ADDR_UNSET,
 		.radio_addr     = ADDR_UNSET,
diff --git a/linux/drivers/media/video/saa7134/saa7134-dvb.c b/linux/drivers/media/video/saa7134/saa7134-dvb.c
index a5263c391..afd9b7e5c 100644
--- a/linux/drivers/media/video/saa7134/saa7134-dvb.c
+++ b/linux/drivers/media/video/saa7134/saa7134-dvb.c
@@ -1461,7 +1461,7 @@ static int dvb_init(struct saa7134_dev *dev)
 		if (fe0->dvb.frontend) {
 			dvb_attach(simple_tuner_attach, fe0->dvb.frontend,
 				   &dev->i2c_adap, 0x61,
-				   TUNER_PHILIPS_FMD1216ME_MK3);
+				   TUNER_PHILIPS_FMD1216MEX_MK3);
 		}
 		break;
 	case SAA7134_BOARD_AVERMEDIA_A700_PRO:
diff --git a/linux/drivers/media/video/sh_mobile_ceu_camera.c b/linux/drivers/media/video/sh_mobile_ceu_camera.c
index 7ea2a0edf..1bae28a98 100644
--- a/linux/drivers/media/video/sh_mobile_ceu_camera.c
+++ b/linux/drivers/media/video/sh_mobile_ceu_camera.c
@@ -283,27 +283,24 @@ out:
 	return ret;
 }
 
+/* Called under spinlock_irqsave(&pcdev->lock, ...) */
 static void sh_mobile_ceu_videobuf_queue(struct videobuf_queue *vq,
 					 struct videobuf_buffer *vb)
 {
 	struct soc_camera_device *icd = vq->priv_data;
 	struct soc_camera_host *ici = to_soc_camera_host(icd->dev.parent);
 	struct sh_mobile_ceu_dev *pcdev = ici->priv;
-	unsigned long flags;
 
 	dev_dbg(&icd->dev, "%s (vb=0x%p) 0x%08lx %zd\n", __func__,
 		vb, vb->baddr, vb->bsize);
 
 	vb->state = VIDEOBUF_QUEUED;
-	spin_lock_irqsave(&pcdev->lock, flags);
 	list_add_tail(&vb->queue, &pcdev->capture);
 
 	if (!pcdev->active) {
 		pcdev->active = vb;
 		sh_mobile_ceu_capture(pcdev);
 	}
-
-	spin_unlock_irqrestore(&pcdev->lock, flags);
 }
 
 static void sh_mobile_ceu_videobuf_release(struct videobuf_queue *vq,
diff --git a/linux/drivers/media/video/v4l2-ioctl.c b/linux/drivers/media/video/v4l2-ioctl.c
index 80c94dc5a..d746d9555 100644
--- a/linux/drivers/media/video/v4l2-ioctl.c
+++ b/linux/drivers/media/video/v4l2-ioctl.c
@@ -1088,8 +1088,10 @@ static long __video_do_ioctl(struct file *file,
 		/* Calls the specific handler */
 		if (ops->vidioc_g_std)
 			ret = ops->vidioc_g_std(file, fh, id);
-		else
+		else if (vfd->current_norm)
 			*id = vfd->current_norm;
+		else
+			ret = -EINVAL;
 
 		if (!ret)
 			dbgarg(cmd, "std=0x%08Lx\n", (long long unsigned)*id);
@@ -1560,12 +1562,19 @@ static long __video_do_ioctl(struct file *file,
 				break;
 			ret = ops->vidioc_g_parm(file, fh, p);
 		} else {
+			v4l2_std_id std = vfd->current_norm;
+
 			if (p->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
 				return -EINVAL;
 
-			v4l2_video_std_frame_period(vfd->current_norm,
-						    &p->parm.capture.timeperframe);
 			ret = 0;
+			if (ops->vidioc_g_std)
+				ret = ops->vidioc_g_std(file, fh, &std);
+			else if (std == 0)
+				ret = -EINVAL;
+			if (ret == 0)
+				v4l2_video_std_frame_period(std,
+						    &p->parm.capture.timeperframe);
 		}
 
 		dbgarg(cmd, "type=%d\n", p->type);