diff mbox

xc4000 patches folded

Message ID 4DEB7E9E.6040102@redhat.com (mailing list archive)
State Accepted
Headers show

Commit Message

Mauro Carvalho Chehab June 5, 2011, 1:03 p.m. UTC
In order to make easier for review, I've folded all the following xc4000 patches into one
patch:

Davide Ferri (1):
      [media] dib0700: add initial code for PCTV 340e by Davide Ferri

Devin Heitmueller (22):
      [media] dib0700: add USB id for PCTV 340eSE
      [media] dib0700: properly setup GPIOs for PCTV 340e
      [media] dib0700: successfully connect to xc4000 over i2c for PCTV 340e
      [media] dib0700: add a sleep before attempting to detect dib7000p
      [media] dib7000p: setup dev.parent for i2c master built into 7000p
      [media] xc4000: pull in firmware management code from xc3028
      [media] xc4000: cut over to using xc5000 version for loading i2c sequences
      [media] xc4000: properly set type for init1 firmware
      [media] xc4000: remove XREG_BUSY code only supported in xc5000
      [media] xc4000: remove xc5000 firmware loading routine
      [media] xc4000: add code to do standard and scode firmware loading
      [media] xc4000: continued cleanup of the firmware loading routine
      [media] xc4000: use if_khz provided in xc4000_config
      [media] xc4000: setup dib7000p AGC config for PCTV 340e
      [media] xc4000: handle dib0700 broken i2c stretching
      [media] dib0700: fixup PLL config for PCTV 340e
      [media] xc4000: get rid of hard-coded 8MHz firmware config
      [media] dib0700: make PCTV 340e work!
      [media] xc4000: turn off debug logging by default
      [media] xc4000: rename firmware image filename
      [media] xc4000: cleanup dmesg logging
      [media] dib0700: remove notes from bringup of PCTV 340e

Istvan Varga (19):
      [media] XC4000: code cleanup
      [media] XC4000: updated standards table
      [media] XC4000: added support for 7 MHz DVB-T
      [media] XC4000: added mutex
      [media] XC4000: fixed frequency error
      [media] XC4000: added firmware_name parameter
      [media] XC4000: simplified seek_firmware()
      [media] XC4000: simplified load_scode
      [media] XC4000: check_firmware() cleanup
      [media] XC4000: added card_type
      [media] XC4000: implemented power management
      [media] XC4000: firmware initialization
      [media] XC4000: debug message improvements
      [media] XC4000: setting registers
      [media] XC4000: added audio_std module parameter
      [media] XC4000: implemented analog TV and radio
      [media] XC4000: xc_tune_channel() cleanup
      [media] XC4000: removed redundant tuner reset
      [media] XC4000: detect XC4100

Mauro Carvalho Chehab (1):
      [media] xc4000: Fix a few bad whitespaces on it

 Documentation/video4linux/CARDLIST.tuner    |    1 +
 drivers/media/common/tuners/Kconfig         |   10 +
 drivers/media/common/tuners/Makefile        |    1 +
 drivers/media/common/tuners/tuner-types.c   |    4 +
 drivers/media/common/tuners/xc4000.c        | 1731 +++++++++++++++++++++++++++
 drivers/media/common/tuners/xc4000.h        |   66 +
 drivers/media/dvb/dvb-usb/dib0700_devices.c |  185 +++
 drivers/media/dvb/dvb-usb/dvb-usb-ids.h     |    2 +
 drivers/media/dvb/frontends/dib7000p.c      |    5 +
 drivers/media/video/tuner-core.c            |   14 +
 include/media/tuner.h                       |    2 +
 11 files changed, 2021 insertions(+), 0 deletions(-)
 create mode 100644 drivers/media/common/tuners/xc4000.c
 create mode 100644 drivers/media/common/tuners/xc4000.h

I'll be replying to this email for the xc4000 driver review.

Cheers,
Mauro.

--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Comments

Mauro Carvalho Chehab June 5, 2011, 1:58 p.m. UTC | #1
Em 05-06-2011 10:03, Mauro Carvalho Chehab escreveu:
> In order to make easier for review, I've folded all the following xc4000 patches into one
> patch:

I'm c/c Patrick, as this patch adds two dib0700 boards with xc4000.

> 
> Davide Ferri (1):
>       [media] dib0700: add initial code for PCTV 340e by Davide Ferri
> 
> Devin Heitmueller (22):
>       [media] dib0700: add USB id for PCTV 340eSE
>       [media] dib0700: properly setup GPIOs for PCTV 340e
>       [media] dib0700: successfully connect to xc4000 over i2c for PCTV 340e
>       [media] dib0700: add a sleep before attempting to detect dib7000p
>       [media] dib7000p: setup dev.parent for i2c master built into 7000p
>       [media] xc4000: pull in firmware management code from xc3028
>       [media] xc4000: cut over to using xc5000 version for loading i2c sequences
>       [media] xc4000: properly set type for init1 firmware
>       [media] xc4000: remove XREG_BUSY code only supported in xc5000
>       [media] xc4000: remove xc5000 firmware loading routine
>       [media] xc4000: add code to do standard and scode firmware loading
>       [media] xc4000: continued cleanup of the firmware loading routine
>       [media] xc4000: use if_khz provided in xc4000_config
>       [media] xc4000: setup dib7000p AGC config for PCTV 340e
>       [media] xc4000: handle dib0700 broken i2c stretching
>       [media] dib0700: fixup PLL config for PCTV 340e
>       [media] xc4000: get rid of hard-coded 8MHz firmware config
>       [media] dib0700: make PCTV 340e work!
>       [media] xc4000: turn off debug logging by default
>       [media] xc4000: rename firmware image filename
>       [media] xc4000: cleanup dmesg logging
>       [media] dib0700: remove notes from bringup of PCTV 340e
> 
> Istvan Varga (19):
>       [media] XC4000: code cleanup
>       [media] XC4000: updated standards table
>       [media] XC4000: added support for 7 MHz DVB-T
>       [media] XC4000: added mutex
>       [media] XC4000: fixed frequency error
>       [media] XC4000: added firmware_name parameter
>       [media] XC4000: simplified seek_firmware()
>       [media] XC4000: simplified load_scode
>       [media] XC4000: check_firmware() cleanup
>       [media] XC4000: added card_type
>       [media] XC4000: implemented power management
>       [media] XC4000: firmware initialization
>       [media] XC4000: debug message improvements
>       [media] XC4000: setting registers
>       [media] XC4000: added audio_std module parameter
>       [media] XC4000: implemented analog TV and radio
>       [media] XC4000: xc_tune_channel() cleanup
>       [media] XC4000: removed redundant tuner reset
>       [media] XC4000: detect XC4100
> 
> Mauro Carvalho Chehab (1):
>       [media] xc4000: Fix a few bad whitespaces on it
> 
>  Documentation/video4linux/CARDLIST.tuner    |    1 +
>  drivers/media/common/tuners/Kconfig         |   10 +
>  drivers/media/common/tuners/Makefile        |    1 +
>  drivers/media/common/tuners/tuner-types.c   |    4 +
>  drivers/media/common/tuners/xc4000.c        | 1731 +++++++++++++++++++++++++++
>  drivers/media/common/tuners/xc4000.h        |   66 +
>  drivers/media/dvb/dvb-usb/dib0700_devices.c |  185 +++
>  drivers/media/dvb/dvb-usb/dvb-usb-ids.h     |    2 +
>  drivers/media/dvb/frontends/dib7000p.c      |    5 +
>  drivers/media/video/tuner-core.c            |   14 +
>  include/media/tuner.h                       |    2 +
>  11 files changed, 2021 insertions(+), 0 deletions(-)
>  create mode 100644 drivers/media/common/tuners/xc4000.c
>  create mode 100644 drivers/media/common/tuners/xc4000.h
> 
> I'll be replying to this email for the xc4000 driver review.

Checkpatch reports total: 9 errors, 34 warnings, 2105 lines checked

I won't be commenting on such issues. They should be easy to fix later.

> 
> Cheers,
> Mauro.
> 
> diff --git a/Documentation/video4linux/CARDLIST.tuner b/Documentation/video4linux/CARDLIST.tuner
> index 562d7fa..6323b7a 100644
> --- a/Documentation/video4linux/CARDLIST.tuner
> +++ b/Documentation/video4linux/CARDLIST.tuner
> @@ -78,6 +78,7 @@ tuner=77 - TCL tuner MF02GIP-5N-E
>  tuner=78 - Philips FMD1216MEX MK3 Hybrid Tuner
>  tuner=79 - Philips PAL/SECAM multi (FM1216 MK5)
>  tuner=80 - Philips FQ1216LME MK3 PAL/SECAM w/active loopthrough
> +tuner=81 - Xceive 4000 tuner
>  tuner=81 - Partsnic (Daewoo) PTI-5NF05
>  tuner=82 - Philips CU1216L
>  tuner=83 - NXP TDA18271
> diff --git a/drivers/media/common/tuners/Kconfig b/drivers/media/common/tuners/Kconfig
> index 22d3ca3..996302a 100644
> --- a/drivers/media/common/tuners/Kconfig
> +++ b/drivers/media/common/tuners/Kconfig
> @@ -23,6 +23,7 @@ config MEDIA_TUNER
>  	depends on VIDEO_MEDIA && I2C
>  	select MEDIA_TUNER_XC2028 if !MEDIA_TUNER_CUSTOMISE
>  	select MEDIA_TUNER_XC5000 if !MEDIA_TUNER_CUSTOMISE
> +	select MEDIA_TUNER_XC4000 if !MEDIA_TUNER_CUSTOMISE
>  	select MEDIA_TUNER_MT20XX if !MEDIA_TUNER_CUSTOMISE
>  	select MEDIA_TUNER_TDA8290 if !MEDIA_TUNER_CUSTOMISE
>  	select MEDIA_TUNER_TEA5761 if !MEDIA_TUNER_CUSTOMISE
> @@ -152,6 +153,15 @@ config MEDIA_TUNER_XC5000
>  	  This device is only used inside a SiP called together with a
>  	  demodulator for now.
>  
> +config MEDIA_TUNER_XC4000
> +	tristate "Xceive XC4000 silicon tuner"
> +	depends on VIDEO_MEDIA && I2C
> +	default m if MEDIA_TUNER_CUSTOMISE
> +	help
> +	  A driver for the silicon tuner XC4000 from Xceive.
> +	  This device is only used inside a SiP called together with a
> +	  demodulator for now.

The autoselect for dib0700 to compile MEDIA_TUNER_XC4000 if !CUSTOMISE
is missing.

> +
>  config MEDIA_TUNER_MXL5005S
>  	tristate "MaxLinear MSL5005S silicon tuner"
>  	depends on VIDEO_MEDIA && I2C
> diff --git a/drivers/media/common/tuners/Makefile b/drivers/media/common/tuners/Makefile
> index 2cb4f53..20d24fc 100644
> --- a/drivers/media/common/tuners/Makefile
> +++ b/drivers/media/common/tuners/Makefile
> @@ -16,6 +16,7 @@ obj-$(CONFIG_MEDIA_TUNER_TDA9887) += tda9887.o
>  obj-$(CONFIG_MEDIA_TUNER_TDA827X) += tda827x.o
>  obj-$(CONFIG_MEDIA_TUNER_TDA18271) += tda18271.o
>  obj-$(CONFIG_MEDIA_TUNER_XC5000) += xc5000.o
> +obj-$(CONFIG_MEDIA_TUNER_XC4000) += xc4000.o
>  obj-$(CONFIG_MEDIA_TUNER_MT2060) += mt2060.o
>  obj-$(CONFIG_MEDIA_TUNER_MT2266) += mt2266.o
>  obj-$(CONFIG_MEDIA_TUNER_QT1010) += qt1010.o
> diff --git a/drivers/media/common/tuners/tuner-types.c b/drivers/media/common/tuners/tuner-types.c
> index afba6dc..94a603a 100644
> --- a/drivers/media/common/tuners/tuner-types.c
> +++ b/drivers/media/common/tuners/tuner-types.c
> @@ -1805,6 +1805,10 @@ struct tunertype tuners[] = {
>  		.name   = "Xceive 5000 tuner",
>  		/* see xc5000.c for details */
>  	},
> +	[TUNER_XC4000] = { /* Xceive 4000 */
> +		.name   = "Xceive 4000 tuner",
> +		/* see xc4000.c for details */
> +	},
>  	[TUNER_TCL_MF02GIP_5N] = { /* TCL tuner MF02GIP-5N-E */
>  		.name   = "TCL tuner MF02GIP-5N-E",
>  		.params = tuner_tcl_mf02gip_5n_params,
> diff --git a/drivers/media/common/tuners/xc4000.c b/drivers/media/common/tuners/xc4000.c
> new file mode 100644
> index 0000000..160ca26
> --- /dev/null
> +++ b/drivers/media/common/tuners/xc4000.c
> @@ -0,0 +1,1731 @@
> +/*
> + *  Driver for Xceive XC4000 "QAM/8VSB single chip tuner"
> + *
> + *  Copyright (c) 2007 Xceive Corporation
> + *  Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
> + *  Copyright (c) 2009 Devin Heitmueller <dheitmueller@kernellabs.com>
> + *  Copyright (c) 2009 Davide Ferri <d.ferri@zero11.it>
> + *
> + *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
> + */
> +
> +#include <linux/module.h>
> +#include <linux/moduleparam.h>
> +#include <linux/videodev2.h>
> +#include <linux/delay.h>
> +#include <linux/dvb/frontend.h>
> +#include <linux/i2c.h>
> +#include <linux/mutex.h>
> +#include <asm/unaligned.h>
> +
> +#include "dvb_frontend.h"
> +
> +#include "xc4000.h"
> +#include "tuner-i2c.h"
> +#include "tuner-xc2028-types.h"
> +
> +static int debug;
> +module_param(debug, int, 0644);
> +MODULE_PARM_DESC(debug, "\n\t\tDebugging level (0 to 2, default: 0 (off)).");
> +
> +static int no_poweroff;
> +module_param(no_poweroff, int, 0644);
> +MODULE_PARM_DESC(no_poweroff, "\n\t\t1: keep device energized and with tuner "
> +	"ready all the times.\n"
> +	"\t\tFaster, but consumes more power and keeps the device hotter.\n"
> +	"\t\t2: powers device off when not used.\n"
> +	"\t\t0 (default): use device-specific default mode.");

Don't add \n\t\t at the beginning of the param_desc. Even the extra \t and \n
format stuff in the middle of the description is unusual. It is better to avoid,
as it may break scripts.

> +
> +#define XC4000_AUDIO_STD_B		 1
> +#define XC4000_AUDIO_STD_A2		 2
> +#define XC4000_AUDIO_STD_K3		 4
> +#define XC4000_AUDIO_STD_L		 8
> +#define XC4000_AUDIO_STD_INPUT1		16
> +#define XC4000_AUDIO_STD_MONO		32
> +
> +static int audio_std;
> +module_param(audio_std, int, 0644);
> +MODULE_PARM_DESC(audio_std, "\n\t\tAudio standard. XC4000 audio decoder "
> +	"explicitly needs to know\n"
> +	"\t\twhat audio standard is needed for some video standards with\n"
> +	"\t\taudio A2 or NICAM.\n"
> +	"\t\tThe valid settings are a sum of:\n"
> +	"\t\t 1: use NICAM/B or A2/B instead of NICAM/A or A2/A\n"
> +	"\t\t 2: use A2 instead of NICAM or BTSC\n"
> +	"\t\t 4: use SECAM/K3 instead of K1\n"
> +	"\t\t 8: use PAL-D/K audio for SECAM-D/K\n"
> +	"\t\t16: use FM radio input 1 instead of input 2\n"
> +	"\t\t32: use mono audio (the lower three bits are ignored)");

Same as above. Please put all those parameters together.

> +
> +#define XC4000_DEFAULT_FIRMWARE "xc4000.fw"

Better to prefix it with dvb-fe- and prefix with the firmware version.

> +
> +static char firmware_name[30];
> +module_param_string(firmware_name, firmware_name, sizeof(firmware_name), 0);
> +MODULE_PARM_DESC(firmware_name, "\n\t\tFirmware file name. Allows overriding "
> +	"the default firmware\n"
> +	"\t\tname.");

Same as above. Please put all parameters together. Makes easier for
reviewers.

> +
> +static DEFINE_MUTEX(xc4000_list_mutex);
> +static LIST_HEAD(hybrid_tuner_instance_list);
> +
> +#define dprintk(level, fmt, arg...) if (debug >= level) \
> +	printk(KERN_INFO "%s: " fmt, "xc4000", ## arg)
> +
> +/* struct for storing firmware table */
> +struct firmware_description {
> +	unsigned int  type;
> +	v4l2_std_id   id;
> +	__u16         int_freq;
> +	unsigned char *ptr;
> +	unsigned int  size;
> +};
> +
> +struct firmware_properties {
> +	unsigned int	type;
> +	v4l2_std_id	id;
> +	v4l2_std_id	std_req;
> +	__u16		int_freq;
> +	unsigned int	scode_table;
> +	int		scode_nr;
> +};
> +
> +struct xc4000_priv {
> +	struct tuner_i2c_props i2c_props;
> +	struct list_head hybrid_tuner_instance_list;
> +	struct firmware_description *firm;
> +	int	firm_size;
> +	__u16	firm_version;
> +	u32	if_khz;
> +	u32	freq_hz;
> +	u32	bandwidth;
> +	u8	video_standard;
> +	u8	rf_mode;
> +	u8	card_type;

Don't add a card_type. Just add the features that are needed for
XC4000_CARD_WINFAST_CX88 to work.

For example, in this code,

+       if (priv->card_type == XC4000_CARD_WINFAST_CX88) {
+               if (xc_write_reg(priv, XREG_D_CODE, 0) == 0)
+                       ret = 0;
+               if (xc_write_reg(priv, XREG_AMPLITUDE,
+                                (priv->firm_version == 0x0102 ? 132 : 134))
+                   != 0)
+                       ret = -EREMOTEIO;
+               if (xc_write_reg(priv, XREG_SMOOTHEDCVBS, 1) != 0)
+                       ret = -EREMOTEIO;
+               if (ret != 0) {
+                       printk(KERN_ERR "xc4000: setting registers failed\n");
+                       /* goto fail; */
+               }
+       }

you may add a parameter like: 

struct xc4000_priv {
	...
	bool set_smoothedcvbs;

and convert the above to:

	if (priv->set_smoothedcvbs) {
		ret = xc_write_reg(priv, XREG_D_CODE, 0);
		if (ret)
			goto fail;		
		ret = xc_write_reg(priv, XREG_D_CODE, 0);
		if (ret)
			goto fail;
		ret = xc_write_reg(priv, XREG_AMPLITUDE, (priv->firm_version == 0x0102 ? 132 : 134));
		if (ret)
			goto fail;
		ret = xc_write_reg(priv, XREG_SMOOTHEDCVBS, 1);
		if (ret)
			goto fail;
	}

	...
fail:
	printk(KERN_ERR "xc4000: setting registers failed\n");

of course, the same parameters should be added at struct xc4000_config,
and the attach logic should copy them into the priv struct.

> +	u8	ignore_i2c_write_errors;

> + /*	struct xc2028_ctrl	ctrl; */

Please remove the above line.

> +	struct firmware_properties cur_fw;
> +	__u16	hwmodel;
> +	__u16	hwvers;
> +	struct mutex	lock;
> +};
> +
> +/* Misc Defines */
> +#define MAX_TV_STANDARD			24
> +#define XC_MAX_I2C_WRITE_LENGTH		64
> +#define XC_POWERED_DOWN			0x80000000U
> +
> +/* Signal Types */
> +#define XC_RF_MODE_AIR			0
> +#define XC_RF_MODE_CABLE		1
> +
> +/* Result codes */
> +#define XC_RESULT_SUCCESS		0
> +#define XC_RESULT_RESET_FAILURE		1
> +#define XC_RESULT_I2C_WRITE_FAILURE	2
> +#define XC_RESULT_I2C_READ_FAILURE	3
> +#define XC_RESULT_OUT_OF_RANGE		5

Errors are always negative. Please avoid defining new
error codes. just use the ones that already exists.

> +
> +/* Product id */
> +#define XC_PRODUCT_ID_FW_NOT_LOADED	0x2000
> +#define XC_PRODUCT_ID_XC4000		0x0FA0
> +#define XC_PRODUCT_ID_XC4100		0x1004
> +
> +/* Registers (Write-only) */
> +#define XREG_INIT         0x00
> +#define XREG_VIDEO_MODE   0x01
> +#define XREG_AUDIO_MODE   0x02
> +#define XREG_RF_FREQ      0x03
> +#define XREG_D_CODE       0x04
> +#define XREG_DIRECTSITTING_MODE 0x05
> +#define XREG_SEEK_MODE    0x06
> +#define XREG_POWER_DOWN   0x08
> +#define XREG_SIGNALSOURCE 0x0A
> +#define XREG_SMOOTHEDCVBS 0x0E
> +#define XREG_AMPLITUDE    0x10
> +
> +/* Registers (Read-only) */
> +#define XREG_ADC_ENV      0x00
> +#define XREG_QUALITY      0x01
> +#define XREG_FRAME_LINES  0x02
> +#define XREG_HSYNC_FREQ   0x03
> +#define XREG_LOCK         0x04
> +#define XREG_FREQ_ERROR   0x05
> +#define XREG_SNR          0x06
> +#define XREG_VERSION      0x07
> +#define XREG_PRODUCT_ID   0x08
> +
> +/*
> +   Basic firmware description. This will remain with
> +   the driver for documentation purposes.
> +
> +   This represents an I2C firmware file encoded as a
> +   string of unsigned char. Format is as follows:
> +
> +   char[0  ]=len0_MSB  -> len = len_MSB * 256 + len_LSB
> +   char[1  ]=len0_LSB  -> length of first write transaction
> +   char[2  ]=data0 -> first byte to be sent
> +   char[3  ]=data1
> +   char[4  ]=data2
> +   char[   ]=...
> +   char[M  ]=dataN  -> last byte to be sent
> +   char[M+1]=len1_MSB  -> len = len_MSB * 256 + len_LSB
> +   char[M+2]=len1_LSB  -> length of second write transaction
> +   char[M+3]=data0
> +   char[M+4]=data1
> +   ...
> +   etc.
> +
> +   The [len] value should be interpreted as follows:
> +
> +   len= len_MSB _ len_LSB
> +   len=1111_1111_1111_1111   : End of I2C_SEQUENCE
> +   len=0000_0000_0000_0000   : Reset command: Do hardware reset
> +   len=0NNN_NNNN_NNNN_NNNN   : Normal transaction: number of bytes = {1:32767)
> +   len=1WWW_WWWW_WWWW_WWWW   : Wait command: wait for {1:32767} ms
> +
> +   For the RESET and WAIT commands, the two following bytes will contain
> +   immediately the length of the following transaction.
> +*/
> +
> +struct XC_TV_STANDARD {
> +	const char  *Name;
> +	u16	    AudioMode;
> +	u16	    VideoMode;
> +	u16	    int_freq;
> +};
> +
> +/* Tuner standards */
> +#define XC4000_MN_NTSC_PAL_BTSC		0
> +#define XC4000_MN_NTSC_PAL_A2		1
> +#define XC4000_MN_NTSC_PAL_EIAJ		2
> +#define XC4000_MN_NTSC_PAL_Mono		3
> +#define XC4000_BG_PAL_A2		4
> +#define XC4000_BG_PAL_NICAM		5
> +#define XC4000_BG_PAL_MONO		6
> +#define XC4000_I_PAL_NICAM		7
> +#define XC4000_I_PAL_NICAM_MONO		8
> +#define XC4000_DK_PAL_A2		9
> +#define XC4000_DK_PAL_NICAM		10
> +#define XC4000_DK_PAL_MONO		11
> +#define XC4000_DK_SECAM_A2DK1		12
> +#define XC4000_DK_SECAM_A2LDK3		13
> +#define XC4000_DK_SECAM_A2MONO		14
> +#define XC4000_DK_SECAM_NICAM		15
> +#define XC4000_L_SECAM_NICAM		16
> +#define XC4000_LC_SECAM_NICAM		17
> +#define XC4000_DTV6			18
> +#define XC4000_DTV8			19
> +#define XC4000_DTV7_8			20
> +#define XC4000_DTV7			21
> +#define XC4000_FM_Radio_INPUT2		22
> +#define XC4000_FM_Radio_INPUT1		23
> +
> +static struct XC_TV_STANDARD XC4000_Standard[MAX_TV_STANDARD] = {
> +	{"M/N-NTSC/PAL-BTSC",	0x0000, 0x80A0, 4500},
> +	{"M/N-NTSC/PAL-A2",	0x0000, 0x80A0, 4600},
> +	{"M/N-NTSC/PAL-EIAJ",	0x0040, 0x80A0, 4500},
> +	{"M/N-NTSC/PAL-Mono",	0x0078, 0x80A0, 4500},
> +	{"B/G-PAL-A2",		0x0000, 0x8159, 5640},
> +	{"B/G-PAL-NICAM",	0x0004, 0x8159, 5740},
> +	{"B/G-PAL-MONO",	0x0078, 0x8159, 5500},
> +	{"I-PAL-NICAM",		0x0080, 0x8049, 6240},
> +	{"I-PAL-NICAM-MONO",	0x0078, 0x8049, 6000},
> +	{"D/K-PAL-A2",		0x0000, 0x8049, 6380},
> +	{"D/K-PAL-NICAM",	0x0080, 0x8049, 6200},
> +	{"D/K-PAL-MONO",	0x0078, 0x8049, 6500},
> +	{"D/K-SECAM-A2 DK1",	0x0000, 0x8049, 6340},
> +	{"D/K-SECAM-A2 L/DK3",	0x0000, 0x8049, 6000},
> +	{"D/K-SECAM-A2 MONO",	0x0078, 0x8049, 6500},
> +	{"D/K-SECAM-NICAM",	0x0080, 0x8049, 6200},
> +	{"L-SECAM-NICAM",	0x8080, 0x0009, 6200},
> +	{"L'-SECAM-NICAM",	0x8080, 0x4009, 6200},
> +	{"DTV6",		0x00C0, 0x8002,    0},
> +	{"DTV8",		0x00C0, 0x800B,    0},
> +	{"DTV7/8",		0x00C0, 0x801B,    0},
> +	{"DTV7",		0x00C0, 0x8007,    0},
> +	{"FM Radio-INPUT2",	0x0008, 0x9800,10700},
> +	{"FM Radio-INPUT1",	0x0008, 0x9000,10700}
> +};
> +
> +static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val);
> +static int xc4000_TunerReset(struct dvb_frontend *fe);
> +static void xc_debug_dump(struct xc4000_priv *priv);
> +
> +static int xc_send_i2c_data(struct xc4000_priv *priv, u8 *buf, int len)
> +{
> +	struct i2c_msg msg = { .addr = priv->i2c_props.addr,
> +			       .flags = 0, .buf = buf, .len = len };
> +	if (i2c_transfer(priv->i2c_props.adap, &msg, 1) != 1) {
> +		if (priv->ignore_i2c_write_errors == 0) {
> +			printk(KERN_ERR "xc4000: I2C write failed (len=%i)\n",
> +			       len);
> +			if (len == 4) {
> +				printk("bytes %02x %02x %02x %02x\n", buf[0],
> +				       buf[1], buf[2], buf[3]);
> +			}
> +			return XC_RESULT_I2C_WRITE_FAILURE;
> +		}
> +	}
> +	return XC_RESULT_SUCCESS;
> +}
> +
> +static void xc_wait(int wait_ms)
> +{
> +	msleep(wait_ms);
> +}

Why to re-define xc_wait? Just replace it with msleep where needed.

> +
> +static int xc4000_TunerReset(struct dvb_frontend *fe)
> +{
> +	struct xc4000_priv *priv = fe->tuner_priv;
> +	int ret;
> +
> +	dprintk(1, "%s()\n", __func__);
> +
> +	if (fe->callback) {
> +		ret = fe->callback(((fe->dvb) && (fe->dvb->priv)) ?
> +					   fe->dvb->priv :
> +					   priv->i2c_props.adap->algo_data,
> +					   DVB_FRONTEND_COMPONENT_TUNER,
> +					   XC4000_TUNER_RESET, 0);
> +		if (ret) {
> +			printk(KERN_ERR "xc4000: reset failed\n");
> +			return XC_RESULT_RESET_FAILURE;
> +		}
> +	} else {
> +		printk(KERN_ERR "xc4000: no tuner reset callback function, fatal\n");
> +		return XC_RESULT_RESET_FAILURE;
> +	}
> +	return XC_RESULT_SUCCESS;
> +}
> +
> +static int xc_write_reg(struct xc4000_priv *priv, u16 regAddr, u16 i2cData)
> +{
> +	u8 buf[4];
> +	int result;
> +
> +	buf[0] = (regAddr >> 8) & 0xFF;
> +	buf[1] = regAddr & 0xFF;
> +	buf[2] = (i2cData >> 8) & 0xFF;
> +	buf[3] = i2cData & 0xFF;
> +	result = xc_send_i2c_data(priv, buf, 4);
> +
> +	return result;
> +}
> +
> +static int xc_load_i2c_sequence(struct dvb_frontend *fe, const u8 *i2c_sequence)
> +{
> +	struct xc4000_priv *priv = fe->tuner_priv;
> +
> +	int i, nbytes_to_send, result;
> +	unsigned int len, pos, index;
> +	u8 buf[XC_MAX_I2C_WRITE_LENGTH];
> +
> +	index = 0;
> +	while ((i2c_sequence[index] != 0xFF) ||
> +		(i2c_sequence[index + 1] != 0xFF)) {
> +		len = i2c_sequence[index] * 256 + i2c_sequence[index+1];
> +		if (len == 0x0000) {
> +			/* RESET command */
> +			index += 2;
> +#if 0			/* not needed, as already called by check_firmware() */
> +			result = xc4000_TunerReset(fe);
> +			if (result != XC_RESULT_SUCCESS)
> +				return result;
> +#endif

If not needed, maybe you can just remove it.

> +		} else if (len & 0x8000) {
> +			/* WAIT command */
> +			xc_wait(len & 0x7FFF);
> +			index += 2;
> +		} else {
> +			/* Send i2c data whilst ensuring individual transactions
> +			 * do not exceed XC_MAX_I2C_WRITE_LENGTH bytes.
> +			 */
> +			index += 2;
> +			buf[0] = i2c_sequence[index];
> +			buf[1] = i2c_sequence[index + 1];
> +			pos = 2;
> +			while (pos < len) {
> +				if ((len - pos) > XC_MAX_I2C_WRITE_LENGTH - 2)
> +					nbytes_to_send =
> +						XC_MAX_I2C_WRITE_LENGTH;
> +				else
> +					nbytes_to_send = (len - pos + 2);
> +				for (i = 2; i < nbytes_to_send; i++) {
> +					buf[i] = i2c_sequence[index + pos +
> +						i - 2];
> +				}
> +				result = xc_send_i2c_data(priv, buf,
> +					nbytes_to_send);
> +
> +				if (result != XC_RESULT_SUCCESS)
> +					return result;
> +
> +				pos += nbytes_to_send - 2;
> +			}
> +			index += len;
> +		}
> +	}
> +	return XC_RESULT_SUCCESS;
> +}
> +
> +static int xc_SetTVStandard(struct xc4000_priv *priv,
> +	u16 VideoMode, u16 AudioMode)

Kernel style is to not use camelcase.

> +{
> +	int ret;
> +	dprintk(1, "%s(0x%04x,0x%04x)\n", __func__, VideoMode, AudioMode);
> +	dprintk(1, "%s() Standard = %s\n",
> +		__func__,
> +		XC4000_Standard[priv->video_standard].Name);
> +
> +	/* Don't complain when the request fails because of i2c stretching */
> +	priv->ignore_i2c_write_errors = 1;
> +
> +	ret = xc_write_reg(priv, XREG_VIDEO_MODE, VideoMode);
> +	if (ret == XC_RESULT_SUCCESS)
> +		ret = xc_write_reg(priv, XREG_AUDIO_MODE, AudioMode);
> +
> +	priv->ignore_i2c_write_errors = 0;
> +
> +	return ret;
> +}
> +
> +static int xc_SetSignalSource(struct xc4000_priv *priv, u16 rf_mode)
> +{
> +	dprintk(1, "%s(%d) Source = %s\n", __func__, rf_mode,
> +		rf_mode == XC_RF_MODE_AIR ? "ANTENNA" : "CABLE");
> +
> +	if ((rf_mode != XC_RF_MODE_AIR) && (rf_mode != XC_RF_MODE_CABLE)) {
> +		rf_mode = XC_RF_MODE_CABLE;
> +		printk(KERN_ERR
> +			"%s(), Invalid mode, defaulting to CABLE",
> +			__func__);
> +	}
> +	return xc_write_reg(priv, XREG_SIGNALSOURCE, rf_mode);
> +}
> +
> +static const struct dvb_tuner_ops xc4000_tuner_ops;
> +
> +static int xc_set_RF_frequency(struct xc4000_priv *priv, u32 freq_hz)
> +{
> +	u16 freq_code;
> +
> +	dprintk(1, "%s(%u)\n", __func__, freq_hz);
> +
> +	if ((freq_hz > xc4000_tuner_ops.info.frequency_max) ||
> +		(freq_hz < xc4000_tuner_ops.info.frequency_min))
> +		return XC_RESULT_OUT_OF_RANGE;

return code should be -EINVAL.

> +
> +	freq_code = (u16)(freq_hz / 15625);
> +
> +	/* WAS: Starting in firmware version 1.1.44, Xceive recommends using the
> +	   FINERFREQ for all normal tuning (the doc indicates reg 0x03 should
> +	   only be used for fast scanning for channel lock) */
> +	return xc_write_reg(priv, XREG_RF_FREQ, freq_code); /* WAS: XREG_FINERFREQ */
> +}
> +
> +static int xc_get_ADC_Envelope(struct xc4000_priv *priv, u16 *adc_envelope)
> +{
> +	return xc4000_readreg(priv, XREG_ADC_ENV, adc_envelope);
> +}
> +
> +static int xc_get_frequency_error(struct xc4000_priv *priv, u32 *freq_error_hz)
> +{
> +	int result;
> +	u16 regData;
> +	u32 tmp;
> +
> +	result = xc4000_readreg(priv, XREG_FREQ_ERROR, &regData);
> +	if (result != XC_RESULT_SUCCESS)
> +		return result;
> +
> +	tmp = (u32)regData & 0xFFFFU;
> +	tmp = (tmp < 0x8000U ? tmp : 0x10000U - tmp);
> +	(*freq_error_hz) = tmp * 15625;
> +	return result;
> +}
> +
> +static int xc_get_lock_status(struct xc4000_priv *priv, u16 *lock_status)
> +{
> +	return xc4000_readreg(priv, XREG_LOCK, lock_status);
> +}
> +
> +static int xc_get_version(struct xc4000_priv *priv,
> +	u8 *hw_majorversion, u8 *hw_minorversion,
> +	u8 *fw_majorversion, u8 *fw_minorversion)
> +{
> +	u16 data;
> +	int result;
> +
> +	result = xc4000_readreg(priv, XREG_VERSION, &data);
> +	if (result != XC_RESULT_SUCCESS)
> +		return result;
> +
> +	(*hw_majorversion) = (data >> 12) & 0x0F;
> +	(*hw_minorversion) = (data >>  8) & 0x0F;
> +	(*fw_majorversion) = (data >>  4) & 0x0F;
> +	(*fw_minorversion) = data & 0x0F;
> +
> +	return 0;
> +}
> +
> +static int xc_get_hsync_freq(struct xc4000_priv *priv, u32 *hsync_freq_hz)
> +{
> +	u16 regData;
> +	int result;
> +
> +	result = xc4000_readreg(priv, XREG_HSYNC_FREQ, &regData);
> +	if (result != XC_RESULT_SUCCESS)
> +		return result;
> +
> +	(*hsync_freq_hz) = ((regData & 0x0fff) * 763)/100;
> +	return result;
> +}
> +
> +static int xc_get_frame_lines(struct xc4000_priv *priv, u16 *frame_lines)
> +{
> +	return xc4000_readreg(priv, XREG_FRAME_LINES, frame_lines);
> +}
> +
> +static int xc_get_quality(struct xc4000_priv *priv, u16 *quality)
> +{
> +	return xc4000_readreg(priv, XREG_QUALITY, quality);
> +}
> +
> +static u16 WaitForLock(struct xc4000_priv *priv)
> +{
> +	u16 lockState = 0;
> +	int watchDogCount = 40;
> +
> +	while ((lockState == 0) && (watchDogCount > 0)) {
> +		xc_get_lock_status(priv, &lockState);
> +		if (lockState != 1) {
> +			xc_wait(5);
> +			watchDogCount--;
> +		}
> +	}
> +	return lockState;
> +}
> +
> +static int xc_tune_channel(struct xc4000_priv *priv, u32 freq_hz)
> +{
> +	int	found = 1;
> +	int	result;
> +
> +	dprintk(1, "%s(%u)\n", __func__, freq_hz);
> +
> +	/* Don't complain when the request fails because of i2c stretching */
> +	priv->ignore_i2c_write_errors = 1;
> +	result = xc_set_RF_frequency(priv, freq_hz);
> +	priv->ignore_i2c_write_errors = 0;
> +
> +	if (result != XC_RESULT_SUCCESS)
> +		return 0;
> +
> +	/* wait for lock only in analog TV mode */
> +	if ((priv->cur_fw.type & (FM | DTV6 | DTV7 | DTV78 | DTV8)) == 0) {
> +		if (WaitForLock(priv) != 1)
> +			found = 0;
> +	}
> +
> +	/* Wait for stats to stabilize.
> +	 * Frame Lines needs two frame times after initial lock
> +	 * before it is valid.
> +	 */
> +	xc_wait(debug ? 100 : 10);
> +
> +	if (debug)
> +		xc_debug_dump(priv);
> +
> +	return found;
> +}
> +
> +static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val)
> +{
> +	u8 buf[2] = { reg >> 8, reg & 0xff };
> +	u8 bval[2] = { 0, 0 };
> +	struct i2c_msg msg[2] = {
> +		{ .addr = priv->i2c_props.addr,
> +			.flags = 0, .buf = &buf[0], .len = 2 },
> +		{ .addr = priv->i2c_props.addr,
> +			.flags = I2C_M_RD, .buf = &bval[0], .len = 2 },
> +	};
> +
> +	if (i2c_transfer(priv->i2c_props.adap, msg, 2) != 2) {
> +		printk(KERN_WARNING "xc4000: I2C read failed\n");
> +		return -EREMOTEIO;
> +	}
> +
> +	*val = (bval[0] << 8) | bval[1];
> +	return XC_RESULT_SUCCESS;
> +}
> +
> +#define dump_firm_type(t)	dump_firm_type_and_int_freq(t, 0)
> +static void dump_firm_type_and_int_freq(unsigned int type, u16 int_freq)
> +{
> +	 if (type & BASE)
> +		printk("BASE ");
> +	 if (type & INIT1)
> +		printk("INIT1 ");
> +	 if (type & F8MHZ)
> +		printk("F8MHZ ");
> +	 if (type & MTS)
> +		printk("MTS ");
> +	 if (type & D2620)
> +		printk("D2620 ");
> +	 if (type & D2633)
> +		printk("D2633 ");
> +	 if (type & DTV6)
> +		printk("DTV6 ");
> +	 if (type & QAM)
> +		printk("QAM ");
> +	 if (type & DTV7)
> +		printk("DTV7 ");
> +	 if (type & DTV78)
> +		printk("DTV78 ");
> +	 if (type & DTV8)
> +		printk("DTV8 ");
> +	 if (type & FM)
> +		printk("FM ");
> +	 if (type & INPUT1)
> +		printk("INPUT1 ");
> +	 if (type & LCD)
> +		printk("LCD ");
> +	 if (type & NOGD)
> +		printk("NOGD ");
> +	 if (type & MONO)
> +		printk("MONO ");
> +	 if (type & ATSC)
> +		printk("ATSC ");
> +	 if (type & IF)
> +		printk("IF ");
> +	 if (type & LG60)
> +		printk("LG60 ");
> +	 if (type & ATI638)
> +		printk("ATI638 ");
> +	 if (type & OREN538)
> +		printk("OREN538 ");
> +	 if (type & OREN36)
> +		printk("OREN36 ");
> +	 if (type & TOYOTA388)
> +		printk("TOYOTA388 ");
> +	 if (type & TOYOTA794)
> +		printk("TOYOTA794 ");
> +	 if (type & DIBCOM52)
> +		printk("DIBCOM52 ");
> +	 if (type & ZARLINK456)
> +		printk("ZARLINK456 ");
> +	 if (type & CHINA)
> +		printk("CHINA ");
> +	 if (type & F6MHZ)
> +		printk("F6MHZ ");
> +	 if (type & INPUT2)
> +		printk("INPUT2 ");
> +	 if (type & SCODE)
> +		printk("SCODE ");
> +	 if (type & HAS_IF)
> +		printk("HAS_IF_%d ", int_freq);
> +}
> +
> +static int seek_firmware(struct dvb_frontend *fe, unsigned int type,
> +			 v4l2_std_id *id)
> +{
> +	struct xc4000_priv *priv = fe->tuner_priv;
> +	int		i, best_i = -1;
> +	unsigned int	best_nr_diffs = 255U;
> +
> +	if (!priv->firm) {
> +		printk("Error! firmware not loaded\n");
> +		return -EINVAL;
> +	}
> +
> +	if (((type & ~SCODE) == 0) && (*id == 0))
> +		*id = V4L2_STD_PAL;
> +
> +	/* Seek for generic video standard match */
> +	for (i = 0; i < priv->firm_size; i++) {
> +		v4l2_std_id	id_diff_mask =
> +			(priv->firm[i].id ^ (*id)) & (*id);
> +		unsigned int	type_diff_mask =
> +			(priv->firm[i].type ^ type)
> +			& (BASE_TYPES | DTV_TYPES | LCD | NOGD | MONO | SCODE);
> +		unsigned int	nr_diffs;
> +
> +		if (type_diff_mask
> +		    & (BASE | INIT1 | FM | DTV6 | DTV7 | DTV78 | DTV8 | SCODE))
> +			continue;
> +
> +		nr_diffs = hweight64(id_diff_mask) + hweight32(type_diff_mask);
> +		if (!nr_diffs)	/* Supports all the requested standards */
> +			goto found;
> +
> +		if (nr_diffs < best_nr_diffs) {
> +			best_nr_diffs = nr_diffs;
> +			best_i = i;
> +		}
> +	}
> +
> +	/* FIXME: Would make sense to seek for type "hint" match ? */
> +	if (best_i < 0) {
> +		i = -ENOENT;
> +		goto ret;
> +	}
> +
> +	if (best_nr_diffs > 0U) {
> +		printk("Selecting best matching firmware (%u bits differ) for "
> +		       "type=", best_nr_diffs);
> +		printk("(%x), id %016llx:\n", type, (unsigned long long)*id);
> +		i = best_i;
> +	}
> +
> +found:
> +	*id = priv->firm[i].id;
> +
> +ret:
> +	if (debug) {
> +		printk("%s firmware for type=", (i < 0) ? "Can't find" :
> +		       "Found");
> +		dump_firm_type(type);
> +		printk("(%x), id %016llx.\n", type, (unsigned long long)*id);
> +	}
> +	return i;
> +}
> +
> +static int load_firmware(struct dvb_frontend *fe, unsigned int type,
> +			 v4l2_std_id *id)
> +{
> +	struct xc4000_priv *priv = fe->tuner_priv;
> +	int                pos, rc;
> +	unsigned char      *p;
> +
> +	pos = seek_firmware(fe, type, id);
> +	if (pos < 0)
> +		return pos;
> +
> +	p = priv->firm[pos].ptr;
> +
> +	/* Don't complain when the request fails because of i2c stretching */
> +	priv->ignore_i2c_write_errors = 1;
> +
> +	rc = xc_load_i2c_sequence(fe, p);
> +
> +	priv->ignore_i2c_write_errors = 0;
> +
> +	return rc;
> +}
> +
> +static int xc4000_fwupload(struct dvb_frontend *fe)
> +{
> +	struct xc4000_priv *priv = fe->tuner_priv;
> +	const struct firmware *fw   = NULL;
> +	const unsigned char   *p, *endp;
> +	int                   rc = 0;
> +	int		      n, n_array;
> +	char		      name[33];
> +	const char	      *fname;
> +
> +	if (firmware_name[0] != '\0')
> +		fname = firmware_name;
> +	else
> +		fname = XC4000_DEFAULT_FIRMWARE;
> +
> +	printk("Reading firmware %s\n",  fname);
> +	rc = request_firmware(&fw, fname, priv->i2c_props.adap->dev.parent);
> +	if (rc < 0) {
> +		if (rc == -ENOENT)
> +			printk("Error: firmware %s not found.\n",
> +				   fname);
> +		else
> +			printk("Error %d while requesting firmware %s \n",
> +				   rc, fname);
> +
> +		return rc;
> +	}
> +	p = fw->data;
> +	endp = p + fw->size;
> +
> +	if (fw->size < sizeof(name) - 1 + 2 + 2) {
> +		printk("Error: firmware file %s has invalid size!\n",
> +		       fname);
> +		goto corrupt;
> +	}
> +
> +	memcpy(name, p, sizeof(name) - 1);
> +	name[sizeof(name) - 1] = 0;

Better to use memlcpy.

> +	p += sizeof(name) - 1;
> +
> +	priv->firm_version = get_unaligned_le16(p);
> +	p += 2;
> +
> +	n_array = get_unaligned_le16(p);
> +	p += 2;
> +
> +	dprintk(1, "Loading %d firmware images from %s, type: %s, ver %d.%d\n",
> +		n_array, fname, name,
> +		priv->firm_version >> 8, priv->firm_version & 0xff);
> +
> +	priv->firm = kzalloc(sizeof(*priv->firm) * n_array, GFP_KERNEL);
> +	if (priv->firm == NULL) {
> +		printk("Not enough memory to load firmware file.\n");
> +		rc = -ENOMEM;
> +		goto err;
> +	}
> +	priv->firm_size = n_array;
> +
> +	n = -1;
> +	while (p < endp) {
> +		__u32 type, size;
> +		v4l2_std_id id;
> +		__u16 int_freq = 0;
> +
> +		n++;
> +		if (n >= n_array) {
> +			printk("More firmware images in file than "
> +			       "were expected!\n");
> +			goto corrupt;
> +		}
> +
> +		/* Checks if there's enough bytes to read */
> +		if (endp - p < sizeof(type) + sizeof(id) + sizeof(size))
> +			goto header;
> +
> +		type = get_unaligned_le32(p);
> +		p += sizeof(type);
> +
> +		id = get_unaligned_le64(p);
> +		p += sizeof(id);
> +
> +		if (type & HAS_IF) {
> +			int_freq = get_unaligned_le16(p);
> +			p += sizeof(int_freq);
> +			if (endp - p < sizeof(size))
> +				goto header;
> +		}
> +
> +		size = get_unaligned_le32(p);
> +		p += sizeof(size);
> +
> +		if (!size || size > endp - p) {
> +			printk("Firmware type (%x), id %llx is corrupted "
> +			       "(size=%d, expected %d)\n",
> +			       type, (unsigned long long)id,
> +			       (unsigned)(endp - p), size);
> +			goto corrupt;
> +		}
> +
> +		priv->firm[n].ptr = kzalloc(size, GFP_KERNEL);
> +		if (priv->firm[n].ptr == NULL) {
> +			printk("Not enough memory to load firmware file.\n");
> +			rc = -ENOMEM;
> +			goto err;
> +		}
> +
> +		if (debug) {
> +			printk("Reading firmware type ");
> +			dump_firm_type_and_int_freq(type, int_freq);
> +			printk("(%x), id %llx, size=%d.\n",
> +			       type, (unsigned long long)id, size);
> +		}
> +
> +		memcpy(priv->firm[n].ptr, p, size);
> +		priv->firm[n].type = type;
> +		priv->firm[n].id   = id;
> +		priv->firm[n].size = size;
> +		priv->firm[n].int_freq = int_freq;
> +
> +		p += size;
> +	}
> +
> +	if (n + 1 != priv->firm_size) {
> +		printk("Firmware file is incomplete!\n");
> +		goto corrupt;
> +	}
> +
> +	goto done;
> +
> +header:
> +	printk("Firmware header is incomplete!\n");
> +corrupt:
> +	rc = -EINVAL;
> +	printk("Error: firmware file is corrupted!\n");
> +
> +err:
> +	printk("Releasing partially loaded firmware file.\n");
> +
> +done:
> +	release_firmware(fw);
> +	if (rc == 0)
> +		dprintk(1, "Firmware files loaded.\n");
> +
> +	return rc;
> +}
> +
> +static int load_scode(struct dvb_frontend *fe, unsigned int type,
> +			 v4l2_std_id *id, __u16 int_freq, int scode)
> +{
> +	struct xc4000_priv *priv = fe->tuner_priv;
> +	int		pos, rc;
> +	unsigned char	*p;
> +	u8		scode_buf[13];
> +	u8		indirect_mode[5];
> +
> +	dprintk(1, "%s called int_freq=%d\n", __func__, int_freq);
> +
> +	if (!int_freq) {
> +		pos = seek_firmware(fe, type, id);
> +		if (pos < 0)
> +			return pos;
> +	} else {
> +		for (pos = 0; pos < priv->firm_size; pos++) {
> +			if ((priv->firm[pos].int_freq == int_freq) &&
> +			    (priv->firm[pos].type & HAS_IF))
> +				break;
> +		}
> +		if (pos == priv->firm_size)
> +			return -ENOENT;
> +	}
> +
> +	p = priv->firm[pos].ptr;
> +
> +	if (priv->firm[pos].size != 12 * 16 || scode >= 16)
> +		return -EINVAL;
> +	p += 12 * scode;
> +
> +	tuner_info("Loading SCODE for type=");
> +	dump_firm_type_and_int_freq(priv->firm[pos].type,
> +				    priv->firm[pos].int_freq);
> +	printk("(%x), id %016llx.\n", priv->firm[pos].type,
> +	       (unsigned long long)*id);
> +
> +	scode_buf[0] = 0x00;
> +	memcpy(&scode_buf[1], p, 12);
> +
> +	/* Enter direct-mode */
> +	rc = xc_write_reg(priv, XREG_DIRECTSITTING_MODE, 0);
> +	if (rc < 0) {
> +		printk("failed to put device into direct mode!\n");
> +		return -EIO;
> +	}
> +
> +	rc = xc_send_i2c_data(priv, scode_buf, 13);
> +	if (rc != XC_RESULT_SUCCESS) {
> +		/* Even if the send failed, make sure we set back to indirect
> +		   mode */
> +		printk("Failed to set scode %d\n", rc);
> +	}
> +
> +	/* Switch back to indirect-mode */
> +	memset(indirect_mode, 0, sizeof(indirect_mode));
> +	indirect_mode[4] = 0x88;
> +	xc_send_i2c_data(priv, indirect_mode, sizeof(indirect_mode));
> +	msleep(10);
> +
> +	return 0;
> +}
> +
> +static int check_firmware(struct dvb_frontend *fe, unsigned int type,
> +			  v4l2_std_id std, __u16 int_freq)
> +{
> +	struct xc4000_priv         *priv = fe->tuner_priv;
> +	struct firmware_properties new_fw;
> +	int			   rc = 0, is_retry = 0;
> +	u16			   version = 0, hwmodel;
> +	v4l2_std_id		   std0;
> +	u8			   hw_major, hw_minor, fw_major, fw_minor;
> +
> +	dprintk(1, "%s called\n", __func__);
> +
> +	if (!priv->firm) {
> +		rc = xc4000_fwupload(fe);
> +		if (rc < 0)
> +			return rc;
> +	}
> +
> +#ifdef DJH_DEBUG
> +	if (priv->ctrl.mts && !(type & FM))
> +		type |= MTS;
> +#endif

Probably can be removed.

> +
> +retry:
> +	new_fw.type = type;
> +	new_fw.id = std;
> +	new_fw.std_req = std;
> +	new_fw.scode_table = SCODE /* | priv->ctrl.scode_table */;
> +	new_fw.scode_nr = 0;
> +	new_fw.int_freq = int_freq;
> +
> +	dprintk(1, "checking firmware, user requested type=");
> +	if (debug) {
> +		dump_firm_type(new_fw.type);
> +		printk("(%x), id %016llx, ", new_fw.type,
> +		       (unsigned long long)new_fw.std_req);

contintuation lines should do:
	printk(KERN_CONT ...

This supresses the checkpatch compliant and properly identifies at
the code that the line is a continuation of a previous message.

> +		if (!int_freq) {
> +			printk("scode_tbl ");

> +#ifdef DJH_DEBUG
> +			dump_firm_type(priv->ctrl.scode_table);
> +			printk("(%x), ", priv->ctrl.scode_table);
> +#endif

Maybe it can also be removed.

> +		} else
> +			printk("int_freq %d, ", new_fw.int_freq);
> +		printk("scode_nr %d\n", new_fw.scode_nr);
> +	}
> +
> +	/* No need to reload base firmware if it matches */
> +	if (priv->cur_fw.type & BASE) {
> +		dprintk(1, "BASE firmware not changed.\n");
> +		goto skip_base;
> +	}
> +
> +	/* Updating BASE - forget about all currently loaded firmware */
> +	memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
> +
> +	/* Reset is needed before loading firmware */
> +	rc = xc4000_TunerReset(fe);
> +	if (rc < 0)
> +		goto fail;
> +
> +	/* BASE firmwares are all std0 */
> +	std0 = 0;
> +	rc = load_firmware(fe, BASE, &std0);
> +	if (rc < 0) {
> +		printk("Error %d while loading base firmware\n", rc);
> +		goto fail;
> +	}
> +
> +	/* Load INIT1, if needed */
> +	dprintk(1, "Load init1 firmware, if exists\n");
> +
> +	rc = load_firmware(fe, BASE | INIT1, &std0);
> +	if (rc == -ENOENT)
> +		rc = load_firmware(fe, BASE | INIT1, &std0);
> +	if (rc < 0 && rc != -ENOENT) {
> +		tuner_err("Error %d while loading init1 firmware\n",
> +			  rc);
> +		goto fail;
> +	}
> +
> +skip_base:
> +	/*
> +	 * No need to reload standard specific firmware if base firmware
> +	 * was not reloaded and requested video standards have not changed.
> +	 */
> +	if (priv->cur_fw.type == (BASE | new_fw.type) &&
> +	    priv->cur_fw.std_req == std) {
> +		dprintk(1, "Std-specific firmware already loaded.\n");
> +		goto skip_std_specific;
> +	}
> +
> +	/* Reloading std-specific firmware forces a SCODE update */
> +	priv->cur_fw.scode_table = 0;
> +
> +	/* Load the standard firmware */
> +	rc = load_firmware(fe, new_fw.type, &new_fw.id);
> +
> +	if (rc < 0)
> +		goto fail;
> +
> +skip_std_specific:
> +	if (priv->cur_fw.scode_table == new_fw.scode_table &&
> +	    priv->cur_fw.scode_nr == new_fw.scode_nr) {
> +		dprintk(1, "SCODE firmware already loaded.\n");
> +		goto check_device;
> +	}
> +
> +	/* Load SCODE firmware, if exists */
> +	rc = load_scode(fe, new_fw.type | new_fw.scode_table, &new_fw.id,
> +			new_fw.int_freq, new_fw.scode_nr);
> +	if (rc != XC_RESULT_SUCCESS)
> +		dprintk(1, "load scode failed %d\n", rc);
> +
> +check_device:
> +	rc = xc4000_readreg(priv, XREG_PRODUCT_ID, &hwmodel);
> +
> +	if (xc_get_version(priv, &hw_major, &hw_minor, &fw_major,
> +			   &fw_minor) != XC_RESULT_SUCCESS) {
> +		printk("Unable to read tuner registers.\n");
> +		goto fail;
> +	}
> +
> +	dprintk(1, "Device is Xceive %d version %d.%d, "
> +		"firmware version %d.%d\n",
> +		hwmodel, hw_major, hw_minor, fw_major, fw_minor);
> +
> +	/* Check firmware version against what we downloaded. */
> +#ifdef DJH_DEBUG
> +	if (priv->firm_version != ((version & 0xf0) << 4 | (version & 0x0f))) {
> +		printk("Incorrect readback of firmware version %x.\n",
> +		       (version & 0xff));
> +		goto fail;
> +	}
> +#endif

I would enable the above code, if this device can provide the firmware version.
Some buggy xc3028 devices sometimes require that a firmware to be loaded 2 or 3
times. Maybe the same trouble may also happen with xc4000. If it doesn't, the
above code won't cause any harm.

> +
> +	/* Check that the tuner hardware model remains consistent over time. */
> +	if (priv->hwmodel == 0 &&
> +	    (hwmodel == XC_PRODUCT_ID_XC4000 ||
> +	     hwmodel == XC_PRODUCT_ID_XC4100)) {
> +		priv->hwmodel = hwmodel;
> +		priv->hwvers  = version & 0xff00;
> +	} else if (priv->hwmodel == 0 || priv->hwmodel != hwmodel ||
> +		   priv->hwvers != (version & 0xff00)) {
> +		printk("Read invalid device hardware information - tuner "
> +		       "hung?\n");
> +		goto fail;
> +	}
> +
> +	memcpy(&priv->cur_fw, &new_fw, sizeof(priv->cur_fw));
> +
> +	/*
> +	 * By setting BASE in cur_fw.type only after successfully loading all
> +	 * firmwares, we can:
> +	 * 1. Identify that BASE firmware with type=0 has been loaded;
> +	 * 2. Tell whether BASE firmware was just changed the next time through.
> +	 */
> +	priv->cur_fw.type |= BASE;
> +
> +	return 0;
> +
> +fail:
> +	memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
> +	if (!is_retry) {
> +		msleep(50);
> +		is_retry = 1;
> +		dprintk(1, "Retrying firmware load\n");
> +		goto retry;
> +	}
> +
> +	if (rc == -ENOENT)
> +		rc = -EINVAL;
> +	return rc;
> +}
> +
> +static void xc_debug_dump(struct xc4000_priv *priv)
> +{
> +	u16	adc_envelope;
> +	u32	freq_error_hz = 0;
> +	u16	lock_status;
> +	u32	hsync_freq_hz = 0;
> +	u16	frame_lines;
> +	u16	quality;
> +	u8	hw_majorversion = 0, hw_minorversion = 0;
> +	u8	fw_majorversion = 0, fw_minorversion = 0;
> +
> +	xc_get_ADC_Envelope(priv, &adc_envelope);
> +	dprintk(1, "*** ADC envelope (0-1023) = %d\n", adc_envelope);
> +
> +	xc_get_frequency_error(priv, &freq_error_hz);
> +	dprintk(1, "*** Frequency error = %d Hz\n", freq_error_hz);
> +
> +	xc_get_lock_status(priv, &lock_status);
> +	dprintk(1, "*** Lock status (0-Wait, 1-Locked, 2-No-signal) = %d\n",
> +		lock_status);
> +
> +	xc_get_version(priv, &hw_majorversion, &hw_minorversion,
> +		       &fw_majorversion, &fw_minorversion);
> +	dprintk(1, "*** HW: V%02x.%02x, FW: V%02x.%02x\n",
> +		hw_majorversion, hw_minorversion,
> +		fw_majorversion, fw_minorversion);
> +
> +	if (priv->video_standard < XC4000_DTV6) {
> +		xc_get_hsync_freq(priv, &hsync_freq_hz);
> +		dprintk(1, "*** Horizontal sync frequency = %d Hz\n",
> +			hsync_freq_hz);
> +
> +		xc_get_frame_lines(priv, &frame_lines);
> +		dprintk(1, "*** Frame lines = %d\n", frame_lines);
> +	}
> +
> +	xc_get_quality(priv, &quality);
> +	dprintk(1, "*** Quality (0:<8dB, 7:>56dB) = %d\n", quality);
> +}
> +
> +static int xc4000_set_params(struct dvb_frontend *fe,
> +	struct dvb_frontend_parameters *params)
> +{
> +	struct xc4000_priv *priv = fe->tuner_priv;
> +	unsigned int type;
> +	int	ret = -EREMOTEIO;
> +
> +	dprintk(1, "%s() frequency=%d (Hz)\n", __func__, params->frequency);
> +
> +	mutex_lock(&priv->lock);
> +
> +	if (fe->ops.info.type == FE_ATSC) {
> +		dprintk(1, "%s() ATSC\n", __func__);
> +		switch (params->u.vsb.modulation) {
> +		case VSB_8:
> +		case VSB_16:
> +			dprintk(1, "%s() VSB modulation\n", __func__);
> +			priv->rf_mode = XC_RF_MODE_AIR;
> +			priv->freq_hz = params->frequency - 1750000;
> +			priv->bandwidth = BANDWIDTH_6_MHZ;
> +			priv->video_standard = XC4000_DTV6;
> +			type = DTV6;
> +			break;
> +		case QAM_64:
> +		case QAM_256:
> +		case QAM_AUTO:
> +			dprintk(1, "%s() QAM modulation\n", __func__);
> +			priv->rf_mode = XC_RF_MODE_CABLE;
> +			priv->freq_hz = params->frequency - 1750000;
> +			priv->bandwidth = BANDWIDTH_6_MHZ;
> +			priv->video_standard = XC4000_DTV6;
> +			type = DTV6;
> +			break;
> +		default:
> +			ret = -EINVAL;
> +			goto fail;
> +		}
> +	} else if (fe->ops.info.type == FE_OFDM) {
> +		dprintk(1, "%s() OFDM\n", __func__);
> +		switch (params->u.ofdm.bandwidth) {
> +		case BANDWIDTH_6_MHZ:
> +			priv->bandwidth = BANDWIDTH_6_MHZ;
> +			priv->video_standard = XC4000_DTV6;
> +			priv->freq_hz = params->frequency - 1750000;
> +			type = DTV6;
> +			break;
> +		case BANDWIDTH_7_MHZ:
> +			priv->bandwidth = BANDWIDTH_7_MHZ;
> +			priv->video_standard = XC4000_DTV7;
> +			priv->freq_hz = params->frequency - 2250000;
> +			type = DTV7;
> +			break;
> +		case BANDWIDTH_8_MHZ:
> +			priv->bandwidth = BANDWIDTH_8_MHZ;
> +			priv->video_standard = XC4000_DTV8;
> +			priv->freq_hz = params->frequency - 2750000;
> +			type = DTV8;
> +			break;
> +		case BANDWIDTH_AUTO:
> +			if (params->frequency < 400000000) {
> +				priv->bandwidth = BANDWIDTH_7_MHZ;
> +				priv->freq_hz = params->frequency - 2250000;
> +			} else {
> +				priv->bandwidth = BANDWIDTH_8_MHZ;
> +				priv->freq_hz = params->frequency - 2750000;
> +			}
> +			priv->video_standard = XC4000_DTV7_8;
> +			type = DTV78;
> +			break;
> +		default:
> +			printk(KERN_ERR "xc4000 bandwidth not set!\n");
> +			ret = -EINVAL;
> +			goto fail;
> +		}
> +		priv->rf_mode = XC_RF_MODE_AIR;
> +	} else {
> +		printk(KERN_ERR "xc4000 modulation type not supported!\n");
> +		ret = -EINVAL;
> +		goto fail;
> +	}
> +
> +	dprintk(1, "%s() frequency=%d (compensated)\n",
> +		__func__, priv->freq_hz);
> +
> +	/* Make sure the correct firmware type is loaded */
> +	if (check_firmware(fe, type, 0, priv->if_khz) != XC_RESULT_SUCCESS)
> +		goto fail;
> +
> +	ret = xc_SetSignalSource(priv, priv->rf_mode);
> +	if (ret != XC_RESULT_SUCCESS) {
> +		printk(KERN_ERR
> +		       "xc4000: xc_SetSignalSource(%d) failed\n",
> +		       priv->rf_mode);
> +		goto fail;
> +	} else {
> +		u16	video_mode, audio_mode;
> +		video_mode = XC4000_Standard[priv->video_standard].VideoMode;
> +		audio_mode = XC4000_Standard[priv->video_standard].AudioMode;
> +		if (type == DTV6 && priv->firm_version != 0x0102)
> +			video_mode |= 0x0001;
> +		ret = xc_SetTVStandard(priv, video_mode, audio_mode);
> +		if (ret != XC_RESULT_SUCCESS) {
> +			printk(KERN_ERR "xc4000: xc_SetTVStandard failed\n");
> +			/* DJH - do not return when it fails... */
> +			/* goto fail; */
> +		}
> +	}
> +
> +	if (priv->card_type == XC4000_CARD_WINFAST_CX88) {
> +		if (xc_write_reg(priv, XREG_D_CODE, 0) == 0)
> +			ret = 0;
> +		if (xc_write_reg(priv, XREG_AMPLITUDE,
> +				 (priv->firm_version == 0x0102 ? 132 : 134))
> +		    != 0)
> +			ret = -EREMOTEIO;
> +		if (xc_write_reg(priv, XREG_SMOOTHEDCVBS, 1) != 0)
> +			ret = -EREMOTEIO;
> +		if (ret != 0) {
> +			printk(KERN_ERR "xc4000: setting registers failed\n");
> +			/* goto fail; */
> +		}
> +	}

Should be replaced by a check for an specific feature needed, as I've pointed
before.

> +
> +	xc_tune_channel(priv, priv->freq_hz);
> +
> +	ret = 0;
> +
> +fail:
> +	mutex_unlock(&priv->lock);
> +
> +	return ret;
> +}
> +
> +static int xc4000_set_analog_params(struct dvb_frontend *fe,
> +	struct analog_parameters *params)
> +{
> +	struct xc4000_priv *priv = fe->tuner_priv;
> +	unsigned int type = 0;
> +	int	ret = -EREMOTEIO;
> +
> +	if (params->mode == V4L2_TUNER_RADIO) {
> +		dprintk(1, "%s() frequency=%d (in units of 62.5Hz)\n",
> +			__func__, params->frequency);
> +
> +		mutex_lock(&priv->lock);
> +
> +		params->std = 0;
> +		priv->freq_hz = params->frequency * 125L / 2;
> +
> +		if (audio_std & XC4000_AUDIO_STD_INPUT1) {
> +			priv->video_standard = XC4000_FM_Radio_INPUT1;
> +			type = FM | INPUT1;
> +		} else {
> +			priv->video_standard = XC4000_FM_Radio_INPUT2;
> +			type = FM | INPUT2;
> +		}
> +
> +		goto tune_channel;
> +	}
> +
> +	dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n",
> +		__func__, params->frequency);
> +
> +	mutex_lock(&priv->lock);
> +
> +	/* params->frequency is in units of 62.5khz */
> +	priv->freq_hz = params->frequency * 62500;
> +
> +	params->std &= V4L2_STD_ALL;
> +	/* if std is not defined, choose one */
> +	if (!params->std)
> +		params->std = V4L2_STD_PAL_BG;
> +
> +	if (audio_std & XC4000_AUDIO_STD_MONO)
> +		type = MONO;
> +
> +	if (params->std & V4L2_STD_MN) {
> +		params->std = V4L2_STD_MN;
> +		if (audio_std & XC4000_AUDIO_STD_MONO) {
> +			priv->video_standard = XC4000_MN_NTSC_PAL_Mono;
> +		} else if (audio_std & XC4000_AUDIO_STD_A2) {
> +			params->std |= V4L2_STD_A2;
> +			priv->video_standard = XC4000_MN_NTSC_PAL_A2;
> +		} else {
> +			params->std |= V4L2_STD_BTSC;
> +			priv->video_standard = XC4000_MN_NTSC_PAL_BTSC;
> +		}
> +		goto tune_channel;
> +	}
> +
> +	if (params->std & V4L2_STD_PAL_BG) {
> +		params->std = V4L2_STD_PAL_BG;
> +		if (audio_std & XC4000_AUDIO_STD_MONO) {
> +			priv->video_standard = XC4000_BG_PAL_MONO;
> +		} else if (!(audio_std & XC4000_AUDIO_STD_A2)) {
> +			if (!(audio_std & XC4000_AUDIO_STD_B)) {
> +				params->std |= V4L2_STD_NICAM_A;
> +				priv->video_standard = XC4000_BG_PAL_NICAM;
> +			} else {
> +				params->std |= V4L2_STD_NICAM_B;
> +				priv->video_standard = XC4000_BG_PAL_NICAM;
> +			}
> +		} else {
> +			if (!(audio_std & XC4000_AUDIO_STD_B)) {
> +				params->std |= V4L2_STD_A2_A;
> +				priv->video_standard = XC4000_BG_PAL_A2;
> +			} else {
> +				params->std |= V4L2_STD_A2_B;
> +				priv->video_standard = XC4000_BG_PAL_A2;
> +			}
> +		}
> +		goto tune_channel;
> +	}
> +
> +	if (params->std & V4L2_STD_PAL_I) {
> +		/* default to NICAM audio standard */
> +		params->std = V4L2_STD_PAL_I | V4L2_STD_NICAM;
> +		if (audio_std & XC4000_AUDIO_STD_MONO) {
> +			priv->video_standard = XC4000_I_PAL_NICAM_MONO;
> +		} else {
> +			priv->video_standard = XC4000_I_PAL_NICAM;
> +		}
> +		goto tune_channel;
> +	}
> +
> +	if (params->std & V4L2_STD_PAL_DK) {
> +		params->std = V4L2_STD_PAL_DK;
> +		if (audio_std & XC4000_AUDIO_STD_MONO) {
> +			priv->video_standard = XC4000_DK_PAL_MONO;
> +		} else if (audio_std & XC4000_AUDIO_STD_A2) {
> +			params->std |= V4L2_STD_A2;
> +			priv->video_standard = XC4000_DK_PAL_A2;
> +		} else {
> +			params->std |= V4L2_STD_NICAM;
> +			priv->video_standard = XC4000_DK_PAL_NICAM;
> +		}
> +		goto tune_channel;
> +	}
> +
> +	if (params->std & V4L2_STD_SECAM_DK) {
> +		/* default to A2 audio standard */
> +		params->std = V4L2_STD_SECAM_DK | V4L2_STD_A2;
> +		if (audio_std & XC4000_AUDIO_STD_L) {
> +			type = 0;
> +			priv->video_standard = XC4000_DK_SECAM_NICAM;
> +		} else if (audio_std & XC4000_AUDIO_STD_MONO) {
> +			priv->video_standard = XC4000_DK_SECAM_A2MONO;
> +		} else if (audio_std & XC4000_AUDIO_STD_K3) {
> +			params->std |= V4L2_STD_SECAM_K3;
> +			priv->video_standard = XC4000_DK_SECAM_A2LDK3;
> +		} else {
> +			priv->video_standard = XC4000_DK_SECAM_A2DK1;
> +		}
> +		goto tune_channel;
> +	}
> +
> +	if (params->std & V4L2_STD_SECAM_L) {
> +		/* default to NICAM audio standard */
> +		type = 0;
> +		params->std = V4L2_STD_SECAM_L | V4L2_STD_NICAM;
> +		priv->video_standard = XC4000_L_SECAM_NICAM;
> +		goto tune_channel;
> +	}
> +
> +	if (params->std & V4L2_STD_SECAM_LC) {
> +		/* default to NICAM audio standard */
> +		type = 0;
> +		params->std = V4L2_STD_SECAM_LC | V4L2_STD_NICAM;
> +		priv->video_standard = XC4000_LC_SECAM_NICAM;
> +		goto tune_channel;
> +	}
> +
> +tune_channel:
> +	/* Fix me: it could be air. */
> +	priv->rf_mode = XC_RF_MODE_CABLE;
> +
> +	if (check_firmware(fe, type, params->std,
> +			   XC4000_Standard[priv->video_standard].int_freq)
> +	    != XC_RESULT_SUCCESS) {
> +		goto fail;
> +	}
> +
> +	ret = xc_SetSignalSource(priv, priv->rf_mode);
> +	if (ret != XC_RESULT_SUCCESS) {
> +		printk(KERN_ERR
> +		       "xc4000: xc_SetSignalSource(%d) failed\n",
> +		       priv->rf_mode);
> +		goto fail;
> +	} else {
> +		u16	video_mode, audio_mode;
> +		video_mode = XC4000_Standard[priv->video_standard].VideoMode;
> +		audio_mode = XC4000_Standard[priv->video_standard].AudioMode;
> +		if (priv->video_standard < XC4000_BG_PAL_A2) {
> +			if (0 /*type & NOGD*/)

The above is my hack to avoid compilation breakage. Please fix.

> +				video_mode &= 0xFF7F;
> +		} else if (priv->video_standard < XC4000_I_PAL_NICAM) {
> +			if (priv->card_type == XC4000_CARD_WINFAST_CX88 &&
> +			    priv->firm_version == 0x0102)
> +				video_mode &= 0xFEFF;

Please use a generic parameter. In this case, it seems that it is just
disabling one video mode. I don't think you need this here, as the better
is to disable such video mode in cx88. Hard to tell without seeing the
cx88 code that adds support for the Winfast xc4000-based card.

> +			if (audio_std & XC4000_AUDIO_STD_B)
> +				video_mode |= 0x0080;
> +		}
> +		ret = xc_SetTVStandard(priv, video_mode, audio_mode);
> +		if (ret != XC_RESULT_SUCCESS) {
> +			printk(KERN_ERR "xc4000: xc_SetTVStandard failed\n");
> +			goto fail;
> +		}
> +	}
> +
> +	if (priv->card_type == XC4000_CARD_WINFAST_CX88) {
> +		if (xc_write_reg(priv, XREG_D_CODE, 0) == 0)
> +			ret = 0;
> +		if (xc_write_reg(priv, XREG_AMPLITUDE, 1) != 0)
> +			ret = -EREMOTEIO;
> +		if (xc_write_reg(priv, XREG_SMOOTHEDCVBS, 1) != 0)
> +			ret = -EREMOTEIO;
> +		if (ret != 0) {
> +			printk(KERN_ERR "xc4000: setting registers failed\n");
> +			goto fail;
> +		}
> +	}

Should be replaced by a check for an specific feature needed, as I've pointed
before.

> +
> +	xc_tune_channel(priv, priv->freq_hz);
> +
> +	ret = 0;
> +
> +fail:
> +	mutex_unlock(&priv->lock);
> +
> +	return ret;
> +}
> +
> +static int xc4000_get_frequency(struct dvb_frontend *fe, u32 *freq)
> +{
> +	struct xc4000_priv *priv = fe->tuner_priv;
> +
> +	*freq = priv->freq_hz;
> +
> +	if (debug) {
> +		mutex_lock(&priv->lock);
> +		if ((priv->cur_fw.type
> +		     & (BASE | FM | DTV6 | DTV7 | DTV78 | DTV8)) == BASE) {
> +			u16	snr = 0;
> +			if (xc4000_readreg(priv, XREG_SNR, &snr) == 0) {
> +				mutex_unlock(&priv->lock);
> +				dprintk(1, "%s() freq = %u, SNR = %d\n",
> +					__func__, *freq, snr);
> +				return 0;
> +			}
> +		}
> +		mutex_unlock(&priv->lock);
> +	}
> +
> +	dprintk(1, "%s()\n", __func__);
> +
> +	return 0;
> +}
> +
> +static int xc4000_get_bandwidth(struct dvb_frontend *fe, u32 *bw)
> +{
> +	struct xc4000_priv *priv = fe->tuner_priv;
> +	dprintk(1, "%s()\n", __func__);
> +
> +	*bw = priv->bandwidth;
> +	return 0;
> +}
> +
> +static int xc4000_get_status(struct dvb_frontend *fe, u32 *status)
> +{
> +	struct xc4000_priv *priv = fe->tuner_priv;
> +	u16	lock_status = 0;
> +
> +	mutex_lock(&priv->lock);
> +
> +	if (priv->cur_fw.type & BASE)
> +		xc_get_lock_status(priv, &lock_status);
> +
> +	*status = (lock_status == 1 ?
> +		   TUNER_STATUS_LOCKED | TUNER_STATUS_STEREO : 0);
> +	if (priv->cur_fw.type & (DTV6 | DTV7 | DTV78 | DTV8))
> +		*status &= (~TUNER_STATUS_STEREO);
> +
> +	mutex_unlock(&priv->lock);
> +
> +	dprintk(2, "%s() lock_status = %d\n", __func__, lock_status);
> +
> +	return 0;
> +}
> +
> +static int xc4000_sleep(struct dvb_frontend *fe)
> +{
> +	struct xc4000_priv *priv = fe->tuner_priv;
> +	int	ret = XC_RESULT_SUCCESS;
> +
> +	dprintk(1, "%s()\n", __func__);
> +
> +	mutex_lock(&priv->lock);
> +
> +	/* Avoid firmware reload on slow devices */
> +	if ((no_poweroff == 2 ||
> +	     (no_poweroff == 0 &&
> +	      priv->card_type != XC4000_CARD_WINFAST_CX88)) &&
> +	    (priv->cur_fw.type & BASE) != 0) {
> +		/* force reset and firmware reload */
> +		priv->cur_fw.type = XC_POWERED_DOWN;
> +
> +		if (xc_write_reg(priv, XREG_POWER_DOWN, 0)
> +		    != XC_RESULT_SUCCESS) {
> +			printk(KERN_ERR
> +			       "xc4000: %s() unable to shutdown tuner\n",
> +			       __func__);
> +			ret = -EREMOTEIO;
> +		}

the cx88-specific test should be replaced by a check for an specific feature needed, 
as I've pointed before. something like:

	bool need_firmware_reload_after_suspend;

> +		xc_wait(20);
> +	}
> +
> +	mutex_unlock(&priv->lock);
> +
> +	return ret;
> +}
> +
> +static int xc4000_init(struct dvb_frontend *fe)
> +{
> +	dprintk(1, "%s()\n", __func__);
> +
> +	return 0;
> +}
> +
> +static int xc4000_release(struct dvb_frontend *fe)
> +{
> +	struct xc4000_priv *priv = fe->tuner_priv;
> +
> +	dprintk(1, "%s()\n", __func__);
> +
> +	mutex_lock(&xc4000_list_mutex);
> +
> +	if (priv)
> +		hybrid_tuner_release_state(priv);
> +
> +	mutex_unlock(&xc4000_list_mutex);
> +
> +	fe->tuner_priv = NULL;
> +
> +	return 0;
> +}
> +
> +static const struct dvb_tuner_ops xc4000_tuner_ops = {
> +	.info = {
> +		.name           = "Xceive XC4000",
> +		.frequency_min  =    1000000,
> +		.frequency_max  = 1023000000,
> +		.frequency_step =      50000,
> +	},
> +
> +	.release	   = xc4000_release,
> +	.init		   = xc4000_init,
> +	.sleep		   = xc4000_sleep,
> +
> +	.set_params	   = xc4000_set_params,
> +	.set_analog_params = xc4000_set_analog_params,
> +	.get_frequency	   = xc4000_get_frequency,
> +	.get_bandwidth	   = xc4000_get_bandwidth,
> +	.get_status	   = xc4000_get_status
> +};
> +
> +struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe,
> +				   struct i2c_adapter *i2c,
> +				   struct xc4000_config *cfg)
> +{
> +	struct xc4000_priv *priv = NULL;
> +	int	instance;
> +	u16	id = 0;
> +
> +	if (cfg->card_type != XC4000_CARD_GENERIC) {
> +		if (cfg->card_type == XC4000_CARD_WINFAST_CX88) {
> +			cfg->i2c_address = 0x61;
> +			cfg->if_khz = 4560;
> +		} else {			/* default to PCTV 340E */
> +			cfg->i2c_address = 0x61;
> +			cfg->if_khz = 5400;
> +		}
> +	}

Should be replaced by a check for an specific feature needed, as I've pointed
before.

In this case, you can just remove the above, and be sure that xc4000_config
will have the i2c_address and the if_khz value set.

> +
> +	dprintk(1, "%s(%d-%04x)\n", __func__,
> +		i2c ? i2c_adapter_id(i2c) : -1,
> +		cfg ? cfg->i2c_address : -1);
> +
> +	mutex_lock(&xc4000_list_mutex);
> +
> +	instance = hybrid_tuner_request_state(struct xc4000_priv, priv,
> +					      hybrid_tuner_instance_list,
> +					      i2c, cfg->i2c_address, "xc4000");
> +	if (cfg->card_type != XC4000_CARD_GENERIC)
> +		priv->card_type = cfg->card_type;
> +	switch (instance) {
> +	case 0:
> +		goto fail;
> +		break;
> +	case 1:
> +		/* new tuner instance */
> +		priv->bandwidth = BANDWIDTH_6_MHZ;
> +		mutex_init(&priv->lock);
> +		fe->tuner_priv = priv;
> +		break;
> +	default:
> +		/* existing tuner instance */
> +		fe->tuner_priv = priv;
> +		break;
> +	}
> +
> +	if (cfg->if_khz != 0) {
> +		/* If the IF hasn't been set yet, use the value provided by
> +		   the caller (occurs in hybrid devices where the analog
> +		   call to xc4000_attach occurs before the digital side) */
> +		priv->if_khz = cfg->if_khz;
> +	}
> +
> +	/* Check if firmware has been loaded. It is possible that another
> +	   instance of the driver has loaded the firmware.
> +	 */
> +
> +	if (instance == 1) {
> +		if (xc4000_readreg(priv, XREG_PRODUCT_ID, &id)
> +		    != XC_RESULT_SUCCESS)
> +			goto fail;
> +	} else {
> +		id = ((priv->cur_fw.type & BASE) != 0 ?
> +		      priv->hwmodel : XC_PRODUCT_ID_FW_NOT_LOADED);
> +	}
> +
> +	switch (id) {
> +	case XC_PRODUCT_ID_XC4000:
> +	case XC_PRODUCT_ID_XC4100:
> +		printk(KERN_INFO
> +			"xc4000: Successfully identified at address 0x%02x\n",
> +			cfg->i2c_address);
> +		printk(KERN_INFO
> +			"xc4000: Firmware has been loaded previously\n");
> +		break;
> +	case XC_PRODUCT_ID_FW_NOT_LOADED:
> +		printk(KERN_INFO
> +			"xc4000: Successfully identified at address 0x%02x\n",
> +			cfg->i2c_address);
> +		printk(KERN_INFO
> +			"xc4000: Firmware has not been loaded previously\n");
> +		break;
> +	default:
> +		printk(KERN_ERR
> +			"xc4000: Device not found at addr 0x%02x (0x%x)\n",
> +			cfg->i2c_address, id);
> +		goto fail;
> +	}
> +
> +	mutex_unlock(&xc4000_list_mutex);
> +
> +	memcpy(&fe->ops.tuner_ops, &xc4000_tuner_ops,
> +		sizeof(struct dvb_tuner_ops));
> +
> +	if (instance == 1) {
> +		int	ret;
> +		mutex_lock(&priv->lock);
> +		ret = xc4000_fwupload(fe);
> +		mutex_unlock(&priv->lock);
> +		if (ret != XC_RESULT_SUCCESS)
> +			goto fail2;
> +	}
> +
> +	return fe;
> +fail:
> +	mutex_unlock(&xc4000_list_mutex);
> +fail2:
> +	xc4000_release(fe);
> +	return NULL;
> +}
> +EXPORT_SYMBOL(xc4000_attach);
> +
> +MODULE_AUTHOR("Steven Toth, Davide Ferri");
> +MODULE_DESCRIPTION("Xceive xc4000 silicon tuner driver");
> +MODULE_LICENSE("GPL");
> diff --git a/drivers/media/common/tuners/xc4000.h b/drivers/media/common/tuners/xc4000.h
> new file mode 100644
> index 0000000..d560d01
> --- /dev/null
> +++ b/drivers/media/common/tuners/xc4000.h
> @@ -0,0 +1,66 @@
> +/*
> + *  Driver for Xceive XC4000 "QAM/8VSB single chip tuner"
> + *
> + *  Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
> + *
> + *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
> + */
> +
> +#ifndef __XC4000_H__
> +#define __XC4000_H__
> +
> +#include <linux/firmware.h>
> +
> +struct dvb_frontend;
> +struct i2c_adapter;
> +
> +#define XC4000_CARD_GENERIC		0
> +#define XC4000_CARD_PCTV_340E		1
> +#define XC4000_CARD_WINFAST_CX88	2

Just remove the above.

> +
> +struct xc4000_config {
> +	u8	card_type;	/* if card type is not generic, all other */
> +	u8	i2c_address;	/* parameters are automatically set */
> +	u32	if_khz;
> +};

The board-specific parameters should be added to the above
struct.

> +
> +/* xc4000 callback command */
> +#define XC4000_TUNER_RESET		0
> +
> +/* For each bridge framework, when it attaches either analog or digital,
> + * it has to store a reference back to its _core equivalent structure,
> + * so that it can service the hardware by steering gpio's etc.
> + * Each bridge implementation is different so cast devptr accordingly.
> + * The xc4000 driver cares not for this value, other than ensuring
> + * it's passed back to a bridge during tuner_callback().
> + */
> +
> +#if defined(CONFIG_MEDIA_TUNER_XC4000) || \
> +    (defined(CONFIG_MEDIA_TUNER_XC4000_MODULE) && defined(MODULE))
> +extern struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe,
> +					  struct i2c_adapter *i2c,
> +					  struct xc4000_config *cfg);
> +#else
> +static inline struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe,
> +						 struct i2c_adapter *i2c,
> +						 struct xc4000_config *cfg)
> +{
> +	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
> +	return NULL;
> +}
> +#endif
> +
> +#endif
> diff --git a/drivers/media/dvb/dvb-usb/dib0700_devices.c b/drivers/media/dvb/dvb-usb/dib0700_devices.c
> index c519ad5..a5212a5 100644
> --- a/drivers/media/dvb/dvb-usb/dib0700_devices.c
> +++ b/drivers/media/dvb/dvb-usb/dib0700_devices.c
> @@ -17,6 +17,7 @@
>  #include "mt2266.h"
>  #include "tuner-xc2028.h"
>  #include "xc5000.h"
> +#include "xc4000.h"
>  #include "s5h1411.h"
>  #include "dib0070.h"
>  #include "dib0090.h"
> @@ -2655,6 +2656,153 @@ static int xc5000_tuner_attach(struct dvb_usb_adapter *adap)
>  		== NULL ? -ENODEV : 0;
>  }
>  
> +static int dib0700_xc4000_tuner_callback(void *priv, int component,
> +					 int command, int arg)
> +{
> +	struct dvb_usb_adapter *adap = priv;
> +
> +	if (command == XC4000_TUNER_RESET) {
> +		/* Reset the tuner */
> +		dib7000p_set_gpio(adap->fe, 8, 0, 0);
> +		msleep(10);
> +		dib7000p_set_gpio(adap->fe, 8, 0, 1);
> +	} else {
> +		err("xc4000: unknown tuner callback command: %d\n", command);
> +		return -EINVAL;
> +	}
> +
> +	return 0;
> +}
> +
> +static struct dibx000_agc_config stk7700p_7000p_xc4000_agc_config = {
> +	.band_caps = BAND_UHF | BAND_VHF,
> +	.setup = 0x64,
> +	.inv_gain = 0x02c8,
> +	.time_stabiliz = 0x15,
> +	.alpha_level = 0x00,
> +	.thlock = 0x76,
> +	.wbd_inv = 0x01,
> +	.wbd_ref = 0x0b33,
> +	.wbd_sel = 0x00,
> +	.wbd_alpha = 0x02,
> +	.agc1_max = 0x00,
> +	.agc1_min = 0x00,
> +	.agc2_max = 0x9b26,
> +	.agc2_min = 0x26ca,
> +	.agc1_pt1 = 0x00,
> +	.agc1_pt2 = 0x00,
> +	.agc1_pt3 = 0x00,
> +	.agc1_slope1 = 0x00,
> +	.agc1_slope2 = 0x00,
> +	.agc2_pt1 = 0x00,
> +	.agc2_pt2 = 0x80,
> +	.agc2_slope1 = 0x1d,
> +	.agc2_slope2 = 0x1d,
> +	.alpha_mant = 0x11,
> +	.alpha_exp = 0x1b,
> +	.beta_mant = 0x17,
> +	.beta_exp = 0x33,
> +	.perform_agc_softsplit = 0x00,
> +};
> +
> +static struct dibx000_bandwidth_config stk7700p_xc4000_pll_config = {
> +	60000, 30000, // internal, sampling
> +	1, 8, 3, 1, 0, // pll_cfg: prediv, ratio, range, reset, bypass
> +	0, 0, 1, 1, 0, // misc: refdiv, bypclk_div, IO_CLK_en_core, ADClkSrc, modulo
> +	(3 << 14) | (1 << 12) | (524 << 0), // sad_cfg: refsel, sel, freq_15k
> +	39370534, // ifreq
> +	20452225, // timf
> +	30000000, // xtal
> +};

Don't use // for comments.

> +
> +/* FIXME: none of these inputs are validated yet */
> +static struct dib7000p_config pctv_340e_config = {
> +	.output_mpeg2_in_188_bytes = 1,
> +
> +	.agc_config_count = 1,
> +	.agc = &stk7700p_7000p_xc4000_agc_config,
> +	.bw  = &stk7700p_xc4000_pll_config,
> +
> +	.gpio_dir = DIB7000M_GPIO_DEFAULT_DIRECTIONS,
> +	.gpio_val = DIB7000M_GPIO_DEFAULT_VALUES,
> +	.gpio_pwm_pos = DIB7000M_GPIO_DEFAULT_PWM_POS,
> +};
> +
> +/* PCTV 340e GPIOs map:
> +   dib0700:
> +   GPIO2  - CX25843 sleep
> +   GPIO3  - CS5340 reset
> +   GPIO5  - IRD
> +   GPIO6  - Power Supply
> +   GPIO8  - LNA (1=off 0=on)
> +   GPIO10 - CX25843 reset
> +   dib7000:
> +   GPIO8  - xc4000 reset
> + */
> +static int pctv340e_frontend_attach(struct dvb_usb_adapter *adap)
> +{
> +	struct dib0700_state *st = adap->dev->priv;
> +
> +	/* Power Supply on */
> +	dib0700_set_gpio(adap->dev, GPIO6,  GPIO_OUT, 0);
> +	msleep(50);
> +	dib0700_set_gpio(adap->dev, GPIO6,  GPIO_OUT, 1);
> +	msleep(100); /* Allow power supply to settle before probing */
> +
> +	/* cx25843 reset */
> +	dib0700_set_gpio(adap->dev, GPIO10,  GPIO_OUT, 0);
> +	msleep(1); /* cx25843 datasheet say 350us required */
> +	dib0700_set_gpio(adap->dev, GPIO10,  GPIO_OUT, 1);
> +
> +	/* LNA off for now */
> +	dib0700_set_gpio(adap->dev, GPIO8,  GPIO_OUT, 1);
> +
> +	/* Put the CX25843 to sleep for now since we're in digital mode */
> +	dib0700_set_gpio(adap->dev, GPIO2, GPIO_OUT, 1);
> +
> +	/* FIXME: not verified yet */
> +	dib0700_ctrl_clock(adap->dev, 72, 1);
> +
> +	msleep(500);
> +
> +	if (dib7000pc_detection(&adap->dev->i2c_adap) == 0) {
> +		/* Demodulator not found for some reason? */
> +		return -ENODEV;
> +	}
> +
> +	adap->fe = dvb_attach(dib7000p_attach, &adap->dev->i2c_adap, 0x12,
> +			      &pctv_340e_config);
> +	st->is_dib7000pc = 1;
> +
> +	return adap->fe == NULL ? -ENODEV : 0;
> +}
> +
> +
> +static struct xc4000_config dib7000p_xc4000_tunerconfig = {
> +	.i2c_address      = 0x61,
> +	.if_khz           = 5400,
> +};
> +
> +static int xc4000_tuner_attach(struct dvb_usb_adapter *adap)
> +{
> +	struct i2c_adapter *tun_i2c;
> +
> +	/* The xc4000 is not on the main i2c bus */
> +	tun_i2c = dib7000p_get_i2c_master(adap->fe,
> +					  DIBX000_I2C_INTERFACE_TUNER, 1);
> +	if (tun_i2c == NULL) {
> +		printk("Could not reach tuner i2c bus\n");
> +		return 0;
> +	}
> +
> +	/* Setup the reset callback */
> +	adap->fe->callback = dib0700_xc4000_tuner_callback;
> +
> +	return dvb_attach(xc4000_attach, adap->fe, tun_i2c,
> +			  &dib7000p_xc4000_tunerconfig)
> +		== NULL ? -ENODEV : 0;
> +}
> +
>  static struct lgdt3305_config hcw_lgdt3305_config = {
>  	.i2c_addr           = 0x0e,
>  	.mpeg_mode          = LGDT3305_MPEG_PARALLEL,
> @@ -2802,6 +2950,8 @@ struct usb_device_id dib0700_usb_id_table[] = {
>  	{ USB_DEVICE(USB_VID_DIBCOM,    USB_PID_DIBCOM_TFE7090PVR) },
>  	{ USB_DEVICE(USB_VID_TECHNISAT, USB_PID_TECHNISAT_AIRSTAR_TELESTICK_2) },
>  /* 75 */{ USB_DEVICE(USB_VID_MEDION,    USB_PID_CREATIX_CTX1921) },
> +	{ USB_DEVICE(USB_VID_PINNACLE,  USB_PID_PINNACLE_PCTV340E) },
> +	{ USB_DEVICE(USB_VID_PINNACLE,  USB_PID_PINNACLE_PCTV340E_SE) },
>  	{ 0 }		/* Terminating entry */
>  };
>  MODULE_DEVICE_TABLE(usb, dib0700_usb_id_table);
> @@ -3772,6 +3922,41 @@ struct dvb_usb_device_properties dib0700_devices[] = {
>  					    RC_TYPE_NEC,
>  			.change_protocol  = dib0700_change_protocol,
>  		},
> +	}, { DIB0700_DEFAULT_DEVICE_PROPERTIES,
> +		.num_adapters = 1,
> +		.adapter = {
> +			{
> +				.frontend_attach  = pctv340e_frontend_attach,
> +				.tuner_attach     = xc4000_tuner_attach,
> +
> +				DIB0700_DEFAULT_STREAMING_CONFIG(0x02),
> +
> +				.size_of_priv = sizeof(struct
> +						dib0700_adapter_state),
> +			},
> +		},
> +
> +		.num_device_descs = 2,
> +		.devices = {
> +			{   "Pinnacle PCTV 340e HD Pro USB Stick",
> +				{ &dib0700_usb_id_table[76], NULL },
> +				{ NULL },
> +			},
> +			{   "Pinnacle PCTV Hybrid Stick Solo",
> +				{ &dib0700_usb_id_table[77], NULL },
> +				{ NULL },
> +			},
> +		},
> +		.rc.core = {
> +			.rc_interval      = DEFAULT_RC_INTERVAL,
> +			.rc_codes         = RC_MAP_DIB0700_RC5_TABLE,
> +			.module_name	  = "dib0700",
> +			.rc_query         = dib0700_rc_query_old_firmware,
> +			.allowed_protos   = RC_TYPE_RC5 |
> +					    RC_TYPE_RC6 |
> +					    RC_TYPE_NEC,
> +			.change_protocol  = dib0700_change_protocol,
> +		},
>  	},
>  };
>  
> diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h
> index 21b1549..20e4788 100644
> --- a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h
> +++ b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h
> @@ -230,6 +230,8 @@
>  #define USB_PID_PINNACLE_PCTV310E			0x3211
>  #define USB_PID_PINNACLE_PCTV801E			0x023a
>  #define USB_PID_PINNACLE_PCTV801E_SE			0x023b
> +#define USB_PID_PINNACLE_PCTV340E			0x023d
> +#define USB_PID_PINNACLE_PCTV340E_SE			0x023e
>  #define USB_PID_PINNACLE_PCTV73A			0x0243
>  #define USB_PID_PINNACLE_PCTV73ESE			0x0245
>  #define USB_PID_PINNACLE_PCTV74E			0x0246
> diff --git a/drivers/media/dvb/frontends/dib7000p.c b/drivers/media/dvb/frontends/dib7000p.c
> index 0c9f40c..a64a538 100644
> --- a/drivers/media/dvb/frontends/dib7000p.c
> +++ b/drivers/media/dvb/frontends/dib7000p.c
> @@ -2336,6 +2336,11 @@ struct dvb_frontend *dib7000p_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr,
>  		request_firmware() will hit an OOPS (this should be moved somewhere
>  		more common) */
>  
> +	/* FIXME: make sure the dev.parent field is initialized, or else
> +	   request_firmware() will hit an OOPS (this should be moved somewhere
> +	   more common) */
> +	st->i2c_master.gated_tuner_i2c_adap.dev.parent = i2c_adap->dev.parent;
> +
>  	dibx000_init_i2c_master(&st->i2c_master, DIB7000P, st->i2c_adap, st->i2c_addr);
>  
>  	/* init 7090 tuner adapter */
> diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c
> index 9363ed9..417c6d1 100644
> --- a/drivers/media/video/tuner-core.c
> +++ b/drivers/media/video/tuner-core.c
> @@ -39,6 +39,7 @@
>  #include "tda9887.h"
>  #include "xc5000.h"
>  #include "tda18271.h"
> +#include "xc4000.h"
>  
>  #define UNSET (-1U)
>  
> @@ -391,6 +392,19 @@ static void set_type(struct i2c_client *c, unsigned int type,
>  		tune_now = 0;
>  		break;
>  	}
> +	case TUNER_XC4000:
> +	{
> +		struct xc4000_config xc4000_cfg = {
> +			.i2c_address	  = t->i2c->addr,
> +			/* if_khz will be set when the digital dvb_attach() occurs */
> +			.if_khz	  = 0,
> +		};
> +		if (!dvb_attach(xc4000_attach,
> +				&t->fe, t->i2c->adapter, &xc4000_cfg))
> +			goto attach_failed;
> +		tune_now = 0;
> +		break;
> +	}
>  	default:
>  		if (!dvb_attach(simple_tuner_attach, &t->fe,
>  				t->i2c->adapter, t->i2c->addr, t->type))
> diff --git a/include/media/tuner.h b/include/media/tuner.h
> index 963e334..89c290b 100644
> --- a/include/media/tuner.h
> +++ b/include/media/tuner.h
> @@ -127,6 +127,8 @@
>  #define TUNER_PHILIPS_FMD1216MEX_MK3	78
>  #define TUNER_PHILIPS_FM1216MK5		79
>  #define TUNER_PHILIPS_FQ1216LME_MK3	80	/* Active loopthrough, no FM */
> +#define TUNER_XC4000			81	/* Xceive Silicon Tuner */
> +
>  #define TUNER_PARTSNIC_PTI_5NF05	81
>  #define TUNER_PHILIPS_CU1216L           82
>  #define TUNER_NXP_TDA18271		83
> --
> To unsubscribe from this list: send the line "unsubscribe linux-media" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
istvan_v@mailbox.hu June 5, 2011, 3:13 p.m. UTC | #2
On 06/05/2011 03:58 PM, Mauro Carvalho Chehab wrote:

> Don't add \n\t\t at the beginning of the param_desc. Even the extra \t and \n
> format stuff in the middle of the description is unusual. It is better to avoid,
> as it may break scripts.

OK, I will remove the tabs. Is the use of \n allowed in the description?

> Please put all parameters together.

Does this mean that the macro definitions should be moved from between
the parameter definitions ?

> Don't add a card_type. Just add the features that are needed for
> XC4000_CARD_WINFAST_CX88 to work.

Yes, this is a change I have already planned. The following parameters
will be added to the priv and config structures:
  - the default enabling of power management
  - amplitude for DVB-T
The other conditionals might not actually be necessary, they were just
added to avoid changing the behavior of the driver with the PCTV 340e
which I cannot test. A third parameter could be added to enable/disable
the use of XREG_SMOOTHEDCVBS, although it is not really needed with the
currently supported cards (always enabling it should not be a problem).

> Please use a generic parameter. In this case, it seems that it is just
> disabling one video mode. I don't think you need this here, as the better
> is to disable such video mode in cx88. Hard to tell without seeing the
> cx88 code that adds support for the Winfast xc4000-based card.

I do not think making it card-specific is really needed. It is probably
best to just remove the card_type check here. Also, the code is there
only to improve support for old (1.2) firmware versions.

For xc4000.c and xc4000.h, is it enough to create the following three
patches, or should the changes be broken up into more smaller patches ?
  - removing the use of card_type
  - uncommenting the firmware version check
  - coding style / cleanup
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Mauro Carvalho Chehab June 5, 2011, 4:40 p.m. UTC | #3
Em 05-06-2011 12:13, Istvan Varga escreveu:
> On 06/05/2011 03:58 PM, Mauro Carvalho Chehab wrote:
> 
>> Don't add \n\t\t at the beginning of the param_desc. Even the extra \t and \n
>> format stuff in the middle of the description is unusual. It is better to avoid,
>> as it may break scripts.
> 
> OK, I will remove the tabs. Is the use of \n allowed in the description?

Never saw \n on a param description. The description is generally just a
summary. The full parameters description should be at 
Documentation/kernel-parameters.txt (although, unfortunately, people
generally forget to update the parameters there).

>> Please put all parameters together.
> 
> Does this mean that the macro definitions should be moved from between
> the parameter definitions ?

We generally put macro definitions after that. Some drivers just move all
parameters to the end of the file.

>> Don't add a card_type. Just add the features that are needed for
>> XC4000_CARD_WINFAST_CX88 to work.
> 
> Yes, this is a change I have already planned. The following parameters
> will be added to the priv and config structures:
>   - the default enabling of power management
>   - amplitude for DVB-T
> The other conditionals might not actually be necessary, they were just
> added to avoid changing the behavior of the driver with the PCTV 340e
> which I cannot test.

Ok. Well, we can ask Devin or one of the PCTV owners to test. 

> A third parameter could be added to enable/disable
> the use of XREG_SMOOTHEDCVBS, although it is not really needed with the
> currently supported cards (always enabling it should not be a problem).

Ok.

>> Please use a generic parameter. In this case, it seems that it is just
>> disabling one video mode. I don't think you need this here, as the better
>> is to disable such video mode in cx88. Hard to tell without seeing the
>> cx88 code that adds support for the Winfast xc4000-based card.
> 
> I do not think making it card-specific is really needed. It is probably
> best to just remove the card_type check here. Also, the code is there
> only to improve support for old (1.2) firmware versions.

Ok.

> For xc4000.c and xc4000.h, is it enough to create the following three
> patches, or should the changes be broken up into more smaller patches ?
>   - removing the use of card_type
>   - uncommenting the firmware version check
>   - coding style / cleanup

I think so.

Ah, we need also to work at the firmware stuff. The better is to add the
firmware files at the firmware tree, at kernel.org. If this is not possible,
then we need to work on another way to provide it.

Thanks!
Mauro
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Devin Heitmueller June 5, 2011, 6:11 p.m. UTC | #4
On Sunday, June 5, 2011, Mauro Carvalho Chehab <mchehab@redhat.com> wrote:
> Em 05-06-2011 12:13, Istvan Varga escreveu:
>> On 06/05/2011 03:58 PM, Mauro Carvalho Chehab wrote:
>>
>>> Don't add \n\t\t at the beginning of the param_desc. Even the extra \t and \n
>>> format stuff in the middle of the description is unusual. It is better to avoid,
>>> as it may break scripts.
>>
>> OK, I will remove the tabs. Is the use of \n allowed in the description?
>
> Never saw \n on a param description. The description is generally just a
> summary. The full parameters description should be at
> Documentation/kernel-parameters.txt (although, unfortunately, people
> generally forget to update the parameters there).
>
>>> Please put all parameters together.
>>
>> Does this mean that the macro definitions should be moved from between
>> the parameter definitions ?
>
> We generally put macro definitions after that. Some drivers just move all
> parameters to the end of the file.
>
>>> Don't add a card_type. Just add the features that are needed for
>>> XC4000_CARD_WINFAST_CX88 to work.
>>
>> Yes, this is a change I have already planned. The following parameters
>> will be added to the priv and config structures:
>>   - the default enabling of power management
>>   - amplitude for DVB-T
>> The other conditionals might not actually be necessary, they were just
>> added to avoid changing the behavior of the driver with the PCTV 340e
>> which I cannot test.
>
> Ok. Well, we can ask Devin or one of the PCTV owners to test.
>
>> A third parameter could be added to enable/disable
>> the use of XREG_SMOOTHEDCVBS, although it is not really needed with the
>> currently supported cards (always enabling it should not be a problem).
>
> Ok.
>
>>> Please use a generic parameter. In this case, it seems that it is just
>>> disabling one video mode. I don't think you need this here, as the better
>>> is to disable such video mode in cx88. Hard to tell without seeing the
>>> cx88 code that adds support for the Winfast xc4000-based card.
>>
>> I do not think making it card-specific is really needed. It is probably
>> best to just remove the card_type check here. Also, the code is there
>> only to improve support for old (1.2) firmware versions.
>
> Ok.
>
>> For xc4000.c and xc4000.h, is it enough to create the following three
>> patches, or should the changes be broken up into more smaller patches ?
>>   - removing the use of card_type
>>   - uncommenting the firmware version check
>>   - coding style / cleanup
>
> I think so.
>
> Ah, we need also to work at the firmware stuff. The better is to add the
> firmware files at the firmware tree, at kernel.org. If this is not possible,
> then we need to work on another way to provide it.

I'll be working with Istvan on this.  I secured the redistribution
rights with xceive so this shouldn't be an issue.

Devin
diff mbox

Patch

diff --git a/Documentation/video4linux/CARDLIST.tuner b/Documentation/video4linux/CARDLIST.tuner
index 562d7fa..6323b7a 100644
--- a/Documentation/video4linux/CARDLIST.tuner
+++ b/Documentation/video4linux/CARDLIST.tuner
@@ -78,6 +78,7 @@  tuner=77 - TCL tuner MF02GIP-5N-E
 tuner=78 - Philips FMD1216MEX MK3 Hybrid Tuner
 tuner=79 - Philips PAL/SECAM multi (FM1216 MK5)
 tuner=80 - Philips FQ1216LME MK3 PAL/SECAM w/active loopthrough
+tuner=81 - Xceive 4000 tuner
 tuner=81 - Partsnic (Daewoo) PTI-5NF05
 tuner=82 - Philips CU1216L
 tuner=83 - NXP TDA18271
diff --git a/drivers/media/common/tuners/Kconfig b/drivers/media/common/tuners/Kconfig
index 22d3ca3..996302a 100644
--- a/drivers/media/common/tuners/Kconfig
+++ b/drivers/media/common/tuners/Kconfig
@@ -23,6 +23,7 @@  config MEDIA_TUNER
 	depends on VIDEO_MEDIA && I2C
 	select MEDIA_TUNER_XC2028 if !MEDIA_TUNER_CUSTOMISE
 	select MEDIA_TUNER_XC5000 if !MEDIA_TUNER_CUSTOMISE
+	select MEDIA_TUNER_XC4000 if !MEDIA_TUNER_CUSTOMISE
 	select MEDIA_TUNER_MT20XX if !MEDIA_TUNER_CUSTOMISE
 	select MEDIA_TUNER_TDA8290 if !MEDIA_TUNER_CUSTOMISE
 	select MEDIA_TUNER_TEA5761 if !MEDIA_TUNER_CUSTOMISE
@@ -152,6 +153,15 @@  config MEDIA_TUNER_XC5000
 	  This device is only used inside a SiP called together with a
 	  demodulator for now.
 
+config MEDIA_TUNER_XC4000
+	tristate "Xceive XC4000 silicon tuner"
+	depends on VIDEO_MEDIA && I2C
+	default m if MEDIA_TUNER_CUSTOMISE
+	help
+	  A driver for the silicon tuner XC4000 from Xceive.
+	  This device is only used inside a SiP called together with a
+	  demodulator for now.
+
 config MEDIA_TUNER_MXL5005S
 	tristate "MaxLinear MSL5005S silicon tuner"
 	depends on VIDEO_MEDIA && I2C
diff --git a/drivers/media/common/tuners/Makefile b/drivers/media/common/tuners/Makefile
index 2cb4f53..20d24fc 100644
--- a/drivers/media/common/tuners/Makefile
+++ b/drivers/media/common/tuners/Makefile
@@ -16,6 +16,7 @@  obj-$(CONFIG_MEDIA_TUNER_TDA9887) += tda9887.o
 obj-$(CONFIG_MEDIA_TUNER_TDA827X) += tda827x.o
 obj-$(CONFIG_MEDIA_TUNER_TDA18271) += tda18271.o
 obj-$(CONFIG_MEDIA_TUNER_XC5000) += xc5000.o
+obj-$(CONFIG_MEDIA_TUNER_XC4000) += xc4000.o
 obj-$(CONFIG_MEDIA_TUNER_MT2060) += mt2060.o
 obj-$(CONFIG_MEDIA_TUNER_MT2266) += mt2266.o
 obj-$(CONFIG_MEDIA_TUNER_QT1010) += qt1010.o
diff --git a/drivers/media/common/tuners/tuner-types.c b/drivers/media/common/tuners/tuner-types.c
index afba6dc..94a603a 100644
--- a/drivers/media/common/tuners/tuner-types.c
+++ b/drivers/media/common/tuners/tuner-types.c
@@ -1805,6 +1805,10 @@  struct tunertype tuners[] = {
 		.name   = "Xceive 5000 tuner",
 		/* see xc5000.c for details */
 	},
+	[TUNER_XC4000] = { /* Xceive 4000 */
+		.name   = "Xceive 4000 tuner",
+		/* see xc4000.c for details */
+	},
 	[TUNER_TCL_MF02GIP_5N] = { /* TCL tuner MF02GIP-5N-E */
 		.name   = "TCL tuner MF02GIP-5N-E",
 		.params = tuner_tcl_mf02gip_5n_params,
diff --git a/drivers/media/common/tuners/xc4000.c b/drivers/media/common/tuners/xc4000.c
new file mode 100644
index 0000000..160ca26
--- /dev/null
+++ b/drivers/media/common/tuners/xc4000.c
@@ -0,0 +1,1731 @@ 
+/*
+ *  Driver for Xceive XC4000 "QAM/8VSB single chip tuner"
+ *
+ *  Copyright (c) 2007 Xceive Corporation
+ *  Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
+ *  Copyright (c) 2009 Devin Heitmueller <dheitmueller@kernellabs.com>
+ *  Copyright (c) 2009 Davide Ferri <d.ferri@zero11.it>
+ *
+ *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/videodev2.h>
+#include <linux/delay.h>
+#include <linux/dvb/frontend.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <asm/unaligned.h>
+
+#include "dvb_frontend.h"
+
+#include "xc4000.h"
+#include "tuner-i2c.h"
+#include "tuner-xc2028-types.h"
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "\n\t\tDebugging level (0 to 2, default: 0 (off)).");
+
+static int no_poweroff;
+module_param(no_poweroff, int, 0644);
+MODULE_PARM_DESC(no_poweroff, "\n\t\t1: keep device energized and with tuner "
+	"ready all the times.\n"
+	"\t\tFaster, but consumes more power and keeps the device hotter.\n"
+	"\t\t2: powers device off when not used.\n"
+	"\t\t0 (default): use device-specific default mode.");
+
+#define XC4000_AUDIO_STD_B		 1
+#define XC4000_AUDIO_STD_A2		 2
+#define XC4000_AUDIO_STD_K3		 4
+#define XC4000_AUDIO_STD_L		 8
+#define XC4000_AUDIO_STD_INPUT1		16
+#define XC4000_AUDIO_STD_MONO		32
+
+static int audio_std;
+module_param(audio_std, int, 0644);
+MODULE_PARM_DESC(audio_std, "\n\t\tAudio standard. XC4000 audio decoder "
+	"explicitly needs to know\n"
+	"\t\twhat audio standard is needed for some video standards with\n"
+	"\t\taudio A2 or NICAM.\n"
+	"\t\tThe valid settings are a sum of:\n"
+	"\t\t 1: use NICAM/B or A2/B instead of NICAM/A or A2/A\n"
+	"\t\t 2: use A2 instead of NICAM or BTSC\n"
+	"\t\t 4: use SECAM/K3 instead of K1\n"
+	"\t\t 8: use PAL-D/K audio for SECAM-D/K\n"
+	"\t\t16: use FM radio input 1 instead of input 2\n"
+	"\t\t32: use mono audio (the lower three bits are ignored)");
+
+#define XC4000_DEFAULT_FIRMWARE "xc4000.fw"
+
+static char firmware_name[30];
+module_param_string(firmware_name, firmware_name, sizeof(firmware_name), 0);
+MODULE_PARM_DESC(firmware_name, "\n\t\tFirmware file name. Allows overriding "
+	"the default firmware\n"
+	"\t\tname.");
+
+static DEFINE_MUTEX(xc4000_list_mutex);
+static LIST_HEAD(hybrid_tuner_instance_list);
+
+#define dprintk(level, fmt, arg...) if (debug >= level) \
+	printk(KERN_INFO "%s: " fmt, "xc4000", ## arg)
+
+/* struct for storing firmware table */
+struct firmware_description {
+	unsigned int  type;
+	v4l2_std_id   id;
+	__u16         int_freq;
+	unsigned char *ptr;
+	unsigned int  size;
+};
+
+struct firmware_properties {
+	unsigned int	type;
+	v4l2_std_id	id;
+	v4l2_std_id	std_req;
+	__u16		int_freq;
+	unsigned int	scode_table;
+	int		scode_nr;
+};
+
+struct xc4000_priv {
+	struct tuner_i2c_props i2c_props;
+	struct list_head hybrid_tuner_instance_list;
+	struct firmware_description *firm;
+	int	firm_size;
+	__u16	firm_version;
+	u32	if_khz;
+	u32	freq_hz;
+	u32	bandwidth;
+	u8	video_standard;
+	u8	rf_mode;
+	u8	card_type;
+	u8	ignore_i2c_write_errors;
+ /*	struct xc2028_ctrl	ctrl; */
+	struct firmware_properties cur_fw;
+	__u16	hwmodel;
+	__u16	hwvers;
+	struct mutex	lock;
+};
+
+/* Misc Defines */
+#define MAX_TV_STANDARD			24
+#define XC_MAX_I2C_WRITE_LENGTH		64
+#define XC_POWERED_DOWN			0x80000000U
+
+/* Signal Types */
+#define XC_RF_MODE_AIR			0
+#define XC_RF_MODE_CABLE		1
+
+/* Result codes */
+#define XC_RESULT_SUCCESS		0
+#define XC_RESULT_RESET_FAILURE		1
+#define XC_RESULT_I2C_WRITE_FAILURE	2
+#define XC_RESULT_I2C_READ_FAILURE	3
+#define XC_RESULT_OUT_OF_RANGE		5
+
+/* Product id */
+#define XC_PRODUCT_ID_FW_NOT_LOADED	0x2000
+#define XC_PRODUCT_ID_XC4000		0x0FA0
+#define XC_PRODUCT_ID_XC4100		0x1004
+
+/* Registers (Write-only) */
+#define XREG_INIT         0x00
+#define XREG_VIDEO_MODE   0x01
+#define XREG_AUDIO_MODE   0x02
+#define XREG_RF_FREQ      0x03
+#define XREG_D_CODE       0x04
+#define XREG_DIRECTSITTING_MODE 0x05
+#define XREG_SEEK_MODE    0x06
+#define XREG_POWER_DOWN   0x08
+#define XREG_SIGNALSOURCE 0x0A
+#define XREG_SMOOTHEDCVBS 0x0E
+#define XREG_AMPLITUDE    0x10
+
+/* Registers (Read-only) */
+#define XREG_ADC_ENV      0x00
+#define XREG_QUALITY      0x01
+#define XREG_FRAME_LINES  0x02
+#define XREG_HSYNC_FREQ   0x03
+#define XREG_LOCK         0x04
+#define XREG_FREQ_ERROR   0x05
+#define XREG_SNR          0x06
+#define XREG_VERSION      0x07
+#define XREG_PRODUCT_ID   0x08
+
+/*
+   Basic firmware description. This will remain with
+   the driver for documentation purposes.
+
+   This represents an I2C firmware file encoded as a
+   string of unsigned char. Format is as follows:
+
+   char[0  ]=len0_MSB  -> len = len_MSB * 256 + len_LSB
+   char[1  ]=len0_LSB  -> length of first write transaction
+   char[2  ]=data0 -> first byte to be sent
+   char[3  ]=data1
+   char[4  ]=data2
+   char[   ]=...
+   char[M  ]=dataN  -> last byte to be sent
+   char[M+1]=len1_MSB  -> len = len_MSB * 256 + len_LSB
+   char[M+2]=len1_LSB  -> length of second write transaction
+   char[M+3]=data0
+   char[M+4]=data1
+   ...
+   etc.
+
+   The [len] value should be interpreted as follows:
+
+   len= len_MSB _ len_LSB
+   len=1111_1111_1111_1111   : End of I2C_SEQUENCE
+   len=0000_0000_0000_0000   : Reset command: Do hardware reset
+   len=0NNN_NNNN_NNNN_NNNN   : Normal transaction: number of bytes = {1:32767)
+   len=1WWW_WWWW_WWWW_WWWW   : Wait command: wait for {1:32767} ms
+
+   For the RESET and WAIT commands, the two following bytes will contain
+   immediately the length of the following transaction.
+*/
+
+struct XC_TV_STANDARD {
+	const char  *Name;
+	u16	    AudioMode;
+	u16	    VideoMode;
+	u16	    int_freq;
+};
+
+/* Tuner standards */
+#define XC4000_MN_NTSC_PAL_BTSC		0
+#define XC4000_MN_NTSC_PAL_A2		1
+#define XC4000_MN_NTSC_PAL_EIAJ		2
+#define XC4000_MN_NTSC_PAL_Mono		3
+#define XC4000_BG_PAL_A2		4
+#define XC4000_BG_PAL_NICAM		5
+#define XC4000_BG_PAL_MONO		6
+#define XC4000_I_PAL_NICAM		7
+#define XC4000_I_PAL_NICAM_MONO		8
+#define XC4000_DK_PAL_A2		9
+#define XC4000_DK_PAL_NICAM		10
+#define XC4000_DK_PAL_MONO		11
+#define XC4000_DK_SECAM_A2DK1		12
+#define XC4000_DK_SECAM_A2LDK3		13
+#define XC4000_DK_SECAM_A2MONO		14
+#define XC4000_DK_SECAM_NICAM		15
+#define XC4000_L_SECAM_NICAM		16
+#define XC4000_LC_SECAM_NICAM		17
+#define XC4000_DTV6			18
+#define XC4000_DTV8			19
+#define XC4000_DTV7_8			20
+#define XC4000_DTV7			21
+#define XC4000_FM_Radio_INPUT2		22
+#define XC4000_FM_Radio_INPUT1		23
+
+static struct XC_TV_STANDARD XC4000_Standard[MAX_TV_STANDARD] = {
+	{"M/N-NTSC/PAL-BTSC",	0x0000, 0x80A0, 4500},
+	{"M/N-NTSC/PAL-A2",	0x0000, 0x80A0, 4600},
+	{"M/N-NTSC/PAL-EIAJ",	0x0040, 0x80A0, 4500},
+	{"M/N-NTSC/PAL-Mono",	0x0078, 0x80A0, 4500},
+	{"B/G-PAL-A2",		0x0000, 0x8159, 5640},
+	{"B/G-PAL-NICAM",	0x0004, 0x8159, 5740},
+	{"B/G-PAL-MONO",	0x0078, 0x8159, 5500},
+	{"I-PAL-NICAM",		0x0080, 0x8049, 6240},
+	{"I-PAL-NICAM-MONO",	0x0078, 0x8049, 6000},
+	{"D/K-PAL-A2",		0x0000, 0x8049, 6380},
+	{"D/K-PAL-NICAM",	0x0080, 0x8049, 6200},
+	{"D/K-PAL-MONO",	0x0078, 0x8049, 6500},
+	{"D/K-SECAM-A2 DK1",	0x0000, 0x8049, 6340},
+	{"D/K-SECAM-A2 L/DK3",	0x0000, 0x8049, 6000},
+	{"D/K-SECAM-A2 MONO",	0x0078, 0x8049, 6500},
+	{"D/K-SECAM-NICAM",	0x0080, 0x8049, 6200},
+	{"L-SECAM-NICAM",	0x8080, 0x0009, 6200},
+	{"L'-SECAM-NICAM",	0x8080, 0x4009, 6200},
+	{"DTV6",		0x00C0, 0x8002,    0},
+	{"DTV8",		0x00C0, 0x800B,    0},
+	{"DTV7/8",		0x00C0, 0x801B,    0},
+	{"DTV7",		0x00C0, 0x8007,    0},
+	{"FM Radio-INPUT2",	0x0008, 0x9800,10700},
+	{"FM Radio-INPUT1",	0x0008, 0x9000,10700}
+};
+
+static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val);
+static int xc4000_TunerReset(struct dvb_frontend *fe);
+static void xc_debug_dump(struct xc4000_priv *priv);
+
+static int xc_send_i2c_data(struct xc4000_priv *priv, u8 *buf, int len)
+{
+	struct i2c_msg msg = { .addr = priv->i2c_props.addr,
+			       .flags = 0, .buf = buf, .len = len };
+	if (i2c_transfer(priv->i2c_props.adap, &msg, 1) != 1) {
+		if (priv->ignore_i2c_write_errors == 0) {
+			printk(KERN_ERR "xc4000: I2C write failed (len=%i)\n",
+			       len);
+			if (len == 4) {
+				printk("bytes %02x %02x %02x %02x\n", buf[0],
+				       buf[1], buf[2], buf[3]);
+			}
+			return XC_RESULT_I2C_WRITE_FAILURE;
+		}
+	}
+	return XC_RESULT_SUCCESS;
+}
+
+static void xc_wait(int wait_ms)
+{
+	msleep(wait_ms);
+}
+
+static int xc4000_TunerReset(struct dvb_frontend *fe)
+{
+	struct xc4000_priv *priv = fe->tuner_priv;
+	int ret;
+
+	dprintk(1, "%s()\n", __func__);
+
+	if (fe->callback) {
+		ret = fe->callback(((fe->dvb) && (fe->dvb->priv)) ?
+					   fe->dvb->priv :
+					   priv->i2c_props.adap->algo_data,
+					   DVB_FRONTEND_COMPONENT_TUNER,
+					   XC4000_TUNER_RESET, 0);
+		if (ret) {
+			printk(KERN_ERR "xc4000: reset failed\n");
+			return XC_RESULT_RESET_FAILURE;
+		}
+	} else {
+		printk(KERN_ERR "xc4000: no tuner reset callback function, fatal\n");
+		return XC_RESULT_RESET_FAILURE;
+	}
+	return XC_RESULT_SUCCESS;
+}
+
+static int xc_write_reg(struct xc4000_priv *priv, u16 regAddr, u16 i2cData)
+{
+	u8 buf[4];
+	int result;
+
+	buf[0] = (regAddr >> 8) & 0xFF;
+	buf[1] = regAddr & 0xFF;
+	buf[2] = (i2cData >> 8) & 0xFF;
+	buf[3] = i2cData & 0xFF;
+	result = xc_send_i2c_data(priv, buf, 4);
+
+	return result;
+}
+
+static int xc_load_i2c_sequence(struct dvb_frontend *fe, const u8 *i2c_sequence)
+{
+	struct xc4000_priv *priv = fe->tuner_priv;
+
+	int i, nbytes_to_send, result;
+	unsigned int len, pos, index;
+	u8 buf[XC_MAX_I2C_WRITE_LENGTH];
+
+	index = 0;
+	while ((i2c_sequence[index] != 0xFF) ||
+		(i2c_sequence[index + 1] != 0xFF)) {
+		len = i2c_sequence[index] * 256 + i2c_sequence[index+1];
+		if (len == 0x0000) {
+			/* RESET command */
+			index += 2;
+#if 0			/* not needed, as already called by check_firmware() */
+			result = xc4000_TunerReset(fe);
+			if (result != XC_RESULT_SUCCESS)
+				return result;
+#endif
+		} else if (len & 0x8000) {
+			/* WAIT command */
+			xc_wait(len & 0x7FFF);
+			index += 2;
+		} else {
+			/* Send i2c data whilst ensuring individual transactions
+			 * do not exceed XC_MAX_I2C_WRITE_LENGTH bytes.
+			 */
+			index += 2;
+			buf[0] = i2c_sequence[index];
+			buf[1] = i2c_sequence[index + 1];
+			pos = 2;
+			while (pos < len) {
+				if ((len - pos) > XC_MAX_I2C_WRITE_LENGTH - 2)
+					nbytes_to_send =
+						XC_MAX_I2C_WRITE_LENGTH;
+				else
+					nbytes_to_send = (len - pos + 2);
+				for (i = 2; i < nbytes_to_send; i++) {
+					buf[i] = i2c_sequence[index + pos +
+						i - 2];
+				}
+				result = xc_send_i2c_data(priv, buf,
+					nbytes_to_send);
+
+				if (result != XC_RESULT_SUCCESS)
+					return result;
+
+				pos += nbytes_to_send - 2;
+			}
+			index += len;
+		}
+	}
+	return XC_RESULT_SUCCESS;
+}
+
+static int xc_SetTVStandard(struct xc4000_priv *priv,
+	u16 VideoMode, u16 AudioMode)
+{
+	int ret;
+	dprintk(1, "%s(0x%04x,0x%04x)\n", __func__, VideoMode, AudioMode);
+	dprintk(1, "%s() Standard = %s\n",
+		__func__,
+		XC4000_Standard[priv->video_standard].Name);
+
+	/* Don't complain when the request fails because of i2c stretching */
+	priv->ignore_i2c_write_errors = 1;
+
+	ret = xc_write_reg(priv, XREG_VIDEO_MODE, VideoMode);
+	if (ret == XC_RESULT_SUCCESS)
+		ret = xc_write_reg(priv, XREG_AUDIO_MODE, AudioMode);
+
+	priv->ignore_i2c_write_errors = 0;
+
+	return ret;
+}
+
+static int xc_SetSignalSource(struct xc4000_priv *priv, u16 rf_mode)
+{
+	dprintk(1, "%s(%d) Source = %s\n", __func__, rf_mode,
+		rf_mode == XC_RF_MODE_AIR ? "ANTENNA" : "CABLE");
+
+	if ((rf_mode != XC_RF_MODE_AIR) && (rf_mode != XC_RF_MODE_CABLE)) {
+		rf_mode = XC_RF_MODE_CABLE;
+		printk(KERN_ERR
+			"%s(), Invalid mode, defaulting to CABLE",
+			__func__);
+	}
+	return xc_write_reg(priv, XREG_SIGNALSOURCE, rf_mode);
+}
+
+static const struct dvb_tuner_ops xc4000_tuner_ops;
+
+static int xc_set_RF_frequency(struct xc4000_priv *priv, u32 freq_hz)
+{
+	u16 freq_code;
+
+	dprintk(1, "%s(%u)\n", __func__, freq_hz);
+
+	if ((freq_hz > xc4000_tuner_ops.info.frequency_max) ||
+		(freq_hz < xc4000_tuner_ops.info.frequency_min))
+		return XC_RESULT_OUT_OF_RANGE;
+
+	freq_code = (u16)(freq_hz / 15625);
+
+	/* WAS: Starting in firmware version 1.1.44, Xceive recommends using the
+	   FINERFREQ for all normal tuning (the doc indicates reg 0x03 should
+	   only be used for fast scanning for channel lock) */
+	return xc_write_reg(priv, XREG_RF_FREQ, freq_code); /* WAS: XREG_FINERFREQ */
+}
+
+static int xc_get_ADC_Envelope(struct xc4000_priv *priv, u16 *adc_envelope)
+{
+	return xc4000_readreg(priv, XREG_ADC_ENV, adc_envelope);
+}
+
+static int xc_get_frequency_error(struct xc4000_priv *priv, u32 *freq_error_hz)
+{
+	int result;
+	u16 regData;
+	u32 tmp;
+
+	result = xc4000_readreg(priv, XREG_FREQ_ERROR, &regData);
+	if (result != XC_RESULT_SUCCESS)
+		return result;
+
+	tmp = (u32)regData & 0xFFFFU;
+	tmp = (tmp < 0x8000U ? tmp : 0x10000U - tmp);
+	(*freq_error_hz) = tmp * 15625;
+	return result;
+}
+
+static int xc_get_lock_status(struct xc4000_priv *priv, u16 *lock_status)
+{
+	return xc4000_readreg(priv, XREG_LOCK, lock_status);
+}
+
+static int xc_get_version(struct xc4000_priv *priv,
+	u8 *hw_majorversion, u8 *hw_minorversion,
+	u8 *fw_majorversion, u8 *fw_minorversion)
+{
+	u16 data;
+	int result;
+
+	result = xc4000_readreg(priv, XREG_VERSION, &data);
+	if (result != XC_RESULT_SUCCESS)
+		return result;
+
+	(*hw_majorversion) = (data >> 12) & 0x0F;
+	(*hw_minorversion) = (data >>  8) & 0x0F;
+	(*fw_majorversion) = (data >>  4) & 0x0F;
+	(*fw_minorversion) = data & 0x0F;
+
+	return 0;
+}
+
+static int xc_get_hsync_freq(struct xc4000_priv *priv, u32 *hsync_freq_hz)
+{
+	u16 regData;
+	int result;
+
+	result = xc4000_readreg(priv, XREG_HSYNC_FREQ, &regData);
+	if (result != XC_RESULT_SUCCESS)
+		return result;
+
+	(*hsync_freq_hz) = ((regData & 0x0fff) * 763)/100;
+	return result;
+}
+
+static int xc_get_frame_lines(struct xc4000_priv *priv, u16 *frame_lines)
+{
+	return xc4000_readreg(priv, XREG_FRAME_LINES, frame_lines);
+}
+
+static int xc_get_quality(struct xc4000_priv *priv, u16 *quality)
+{
+	return xc4000_readreg(priv, XREG_QUALITY, quality);
+}
+
+static u16 WaitForLock(struct xc4000_priv *priv)
+{
+	u16 lockState = 0;
+	int watchDogCount = 40;
+
+	while ((lockState == 0) && (watchDogCount > 0)) {
+		xc_get_lock_status(priv, &lockState);
+		if (lockState != 1) {
+			xc_wait(5);
+			watchDogCount--;
+		}
+	}
+	return lockState;
+}
+
+static int xc_tune_channel(struct xc4000_priv *priv, u32 freq_hz)
+{
+	int	found = 1;
+	int	result;
+
+	dprintk(1, "%s(%u)\n", __func__, freq_hz);
+
+	/* Don't complain when the request fails because of i2c stretching */
+	priv->ignore_i2c_write_errors = 1;
+	result = xc_set_RF_frequency(priv, freq_hz);
+	priv->ignore_i2c_write_errors = 0;
+
+	if (result != XC_RESULT_SUCCESS)
+		return 0;
+
+	/* wait for lock only in analog TV mode */
+	if ((priv->cur_fw.type & (FM | DTV6 | DTV7 | DTV78 | DTV8)) == 0) {
+		if (WaitForLock(priv) != 1)
+			found = 0;
+	}
+
+	/* Wait for stats to stabilize.
+	 * Frame Lines needs two frame times after initial lock
+	 * before it is valid.
+	 */
+	xc_wait(debug ? 100 : 10);
+
+	if (debug)
+		xc_debug_dump(priv);
+
+	return found;
+}
+
+static int xc4000_readreg(struct xc4000_priv *priv, u16 reg, u16 *val)
+{
+	u8 buf[2] = { reg >> 8, reg & 0xff };
+	u8 bval[2] = { 0, 0 };
+	struct i2c_msg msg[2] = {
+		{ .addr = priv->i2c_props.addr,
+			.flags = 0, .buf = &buf[0], .len = 2 },
+		{ .addr = priv->i2c_props.addr,
+			.flags = I2C_M_RD, .buf = &bval[0], .len = 2 },
+	};
+
+	if (i2c_transfer(priv->i2c_props.adap, msg, 2) != 2) {
+		printk(KERN_WARNING "xc4000: I2C read failed\n");
+		return -EREMOTEIO;
+	}
+
+	*val = (bval[0] << 8) | bval[1];
+	return XC_RESULT_SUCCESS;
+}
+
+#define dump_firm_type(t)	dump_firm_type_and_int_freq(t, 0)
+static void dump_firm_type_and_int_freq(unsigned int type, u16 int_freq)
+{
+	 if (type & BASE)
+		printk("BASE ");
+	 if (type & INIT1)
+		printk("INIT1 ");
+	 if (type & F8MHZ)
+		printk("F8MHZ ");
+	 if (type & MTS)
+		printk("MTS ");
+	 if (type & D2620)
+		printk("D2620 ");
+	 if (type & D2633)
+		printk("D2633 ");
+	 if (type & DTV6)
+		printk("DTV6 ");
+	 if (type & QAM)
+		printk("QAM ");
+	 if (type & DTV7)
+		printk("DTV7 ");
+	 if (type & DTV78)
+		printk("DTV78 ");
+	 if (type & DTV8)
+		printk("DTV8 ");
+	 if (type & FM)
+		printk("FM ");
+	 if (type & INPUT1)
+		printk("INPUT1 ");
+	 if (type & LCD)
+		printk("LCD ");
+	 if (type & NOGD)
+		printk("NOGD ");
+	 if (type & MONO)
+		printk("MONO ");
+	 if (type & ATSC)
+		printk("ATSC ");
+	 if (type & IF)
+		printk("IF ");
+	 if (type & LG60)
+		printk("LG60 ");
+	 if (type & ATI638)
+		printk("ATI638 ");
+	 if (type & OREN538)
+		printk("OREN538 ");
+	 if (type & OREN36)
+		printk("OREN36 ");
+	 if (type & TOYOTA388)
+		printk("TOYOTA388 ");
+	 if (type & TOYOTA794)
+		printk("TOYOTA794 ");
+	 if (type & DIBCOM52)
+		printk("DIBCOM52 ");
+	 if (type & ZARLINK456)
+		printk("ZARLINK456 ");
+	 if (type & CHINA)
+		printk("CHINA ");
+	 if (type & F6MHZ)
+		printk("F6MHZ ");
+	 if (type & INPUT2)
+		printk("INPUT2 ");
+	 if (type & SCODE)
+		printk("SCODE ");
+	 if (type & HAS_IF)
+		printk("HAS_IF_%d ", int_freq);
+}
+
+static int seek_firmware(struct dvb_frontend *fe, unsigned int type,
+			 v4l2_std_id *id)
+{
+	struct xc4000_priv *priv = fe->tuner_priv;
+	int		i, best_i = -1;
+	unsigned int	best_nr_diffs = 255U;
+
+	if (!priv->firm) {
+		printk("Error! firmware not loaded\n");
+		return -EINVAL;
+	}
+
+	if (((type & ~SCODE) == 0) && (*id == 0))
+		*id = V4L2_STD_PAL;
+
+	/* Seek for generic video standard match */
+	for (i = 0; i < priv->firm_size; i++) {
+		v4l2_std_id	id_diff_mask =
+			(priv->firm[i].id ^ (*id)) & (*id);
+		unsigned int	type_diff_mask =
+			(priv->firm[i].type ^ type)
+			& (BASE_TYPES | DTV_TYPES | LCD | NOGD | MONO | SCODE);
+		unsigned int	nr_diffs;
+
+		if (type_diff_mask
+		    & (BASE | INIT1 | FM | DTV6 | DTV7 | DTV78 | DTV8 | SCODE))
+			continue;
+
+		nr_diffs = hweight64(id_diff_mask) + hweight32(type_diff_mask);
+		if (!nr_diffs)	/* Supports all the requested standards */
+			goto found;
+
+		if (nr_diffs < best_nr_diffs) {
+			best_nr_diffs = nr_diffs;
+			best_i = i;
+		}
+	}
+
+	/* FIXME: Would make sense to seek for type "hint" match ? */
+	if (best_i < 0) {
+		i = -ENOENT;
+		goto ret;
+	}
+
+	if (best_nr_diffs > 0U) {
+		printk("Selecting best matching firmware (%u bits differ) for "
+		       "type=", best_nr_diffs);
+		printk("(%x), id %016llx:\n", type, (unsigned long long)*id);
+		i = best_i;
+	}
+
+found:
+	*id = priv->firm[i].id;
+
+ret:
+	if (debug) {
+		printk("%s firmware for type=", (i < 0) ? "Can't find" :
+		       "Found");
+		dump_firm_type(type);
+		printk("(%x), id %016llx.\n", type, (unsigned long long)*id);
+	}
+	return i;
+}
+
+static int load_firmware(struct dvb_frontend *fe, unsigned int type,
+			 v4l2_std_id *id)
+{
+	struct xc4000_priv *priv = fe->tuner_priv;
+	int                pos, rc;
+	unsigned char      *p;
+
+	pos = seek_firmware(fe, type, id);
+	if (pos < 0)
+		return pos;
+
+	p = priv->firm[pos].ptr;
+
+	/* Don't complain when the request fails because of i2c stretching */
+	priv->ignore_i2c_write_errors = 1;
+
+	rc = xc_load_i2c_sequence(fe, p);
+
+	priv->ignore_i2c_write_errors = 0;
+
+	return rc;
+}
+
+static int xc4000_fwupload(struct dvb_frontend *fe)
+{
+	struct xc4000_priv *priv = fe->tuner_priv;
+	const struct firmware *fw   = NULL;
+	const unsigned char   *p, *endp;
+	int                   rc = 0;
+	int		      n, n_array;
+	char		      name[33];
+	const char	      *fname;
+
+	if (firmware_name[0] != '\0')
+		fname = firmware_name;
+	else
+		fname = XC4000_DEFAULT_FIRMWARE;
+
+	printk("Reading firmware %s\n",  fname);
+	rc = request_firmware(&fw, fname, priv->i2c_props.adap->dev.parent);
+	if (rc < 0) {
+		if (rc == -ENOENT)
+			printk("Error: firmware %s not found.\n",
+				   fname);
+		else
+			printk("Error %d while requesting firmware %s \n",
+				   rc, fname);
+
+		return rc;
+	}
+	p = fw->data;
+	endp = p + fw->size;
+
+	if (fw->size < sizeof(name) - 1 + 2 + 2) {
+		printk("Error: firmware file %s has invalid size!\n",
+		       fname);
+		goto corrupt;
+	}
+
+	memcpy(name, p, sizeof(name) - 1);
+	name[sizeof(name) - 1] = 0;
+	p += sizeof(name) - 1;
+
+	priv->firm_version = get_unaligned_le16(p);
+	p += 2;
+
+	n_array = get_unaligned_le16(p);
+	p += 2;
+
+	dprintk(1, "Loading %d firmware images from %s, type: %s, ver %d.%d\n",
+		n_array, fname, name,
+		priv->firm_version >> 8, priv->firm_version & 0xff);
+
+	priv->firm = kzalloc(sizeof(*priv->firm) * n_array, GFP_KERNEL);
+	if (priv->firm == NULL) {
+		printk("Not enough memory to load firmware file.\n");
+		rc = -ENOMEM;
+		goto err;
+	}
+	priv->firm_size = n_array;
+
+	n = -1;
+	while (p < endp) {
+		__u32 type, size;
+		v4l2_std_id id;
+		__u16 int_freq = 0;
+
+		n++;
+		if (n >= n_array) {
+			printk("More firmware images in file than "
+			       "were expected!\n");
+			goto corrupt;
+		}
+
+		/* Checks if there's enough bytes to read */
+		if (endp - p < sizeof(type) + sizeof(id) + sizeof(size))
+			goto header;
+
+		type = get_unaligned_le32(p);
+		p += sizeof(type);
+
+		id = get_unaligned_le64(p);
+		p += sizeof(id);
+
+		if (type & HAS_IF) {
+			int_freq = get_unaligned_le16(p);
+			p += sizeof(int_freq);
+			if (endp - p < sizeof(size))
+				goto header;
+		}
+
+		size = get_unaligned_le32(p);
+		p += sizeof(size);
+
+		if (!size || size > endp - p) {
+			printk("Firmware type (%x), id %llx is corrupted "
+			       "(size=%d, expected %d)\n",
+			       type, (unsigned long long)id,
+			       (unsigned)(endp - p), size);
+			goto corrupt;
+		}
+
+		priv->firm[n].ptr = kzalloc(size, GFP_KERNEL);
+		if (priv->firm[n].ptr == NULL) {
+			printk("Not enough memory to load firmware file.\n");
+			rc = -ENOMEM;
+			goto err;
+		}
+
+		if (debug) {
+			printk("Reading firmware type ");
+			dump_firm_type_and_int_freq(type, int_freq);
+			printk("(%x), id %llx, size=%d.\n",
+			       type, (unsigned long long)id, size);
+		}
+
+		memcpy(priv->firm[n].ptr, p, size);
+		priv->firm[n].type = type;
+		priv->firm[n].id   = id;
+		priv->firm[n].size = size;
+		priv->firm[n].int_freq = int_freq;
+
+		p += size;
+	}
+
+	if (n + 1 != priv->firm_size) {
+		printk("Firmware file is incomplete!\n");
+		goto corrupt;
+	}
+
+	goto done;
+
+header:
+	printk("Firmware header is incomplete!\n");
+corrupt:
+	rc = -EINVAL;
+	printk("Error: firmware file is corrupted!\n");
+
+err:
+	printk("Releasing partially loaded firmware file.\n");
+
+done:
+	release_firmware(fw);
+	if (rc == 0)
+		dprintk(1, "Firmware files loaded.\n");
+
+	return rc;
+}
+
+static int load_scode(struct dvb_frontend *fe, unsigned int type,
+			 v4l2_std_id *id, __u16 int_freq, int scode)
+{
+	struct xc4000_priv *priv = fe->tuner_priv;
+	int		pos, rc;
+	unsigned char	*p;
+	u8		scode_buf[13];
+	u8		indirect_mode[5];
+
+	dprintk(1, "%s called int_freq=%d\n", __func__, int_freq);
+
+	if (!int_freq) {
+		pos = seek_firmware(fe, type, id);
+		if (pos < 0)
+			return pos;
+	} else {
+		for (pos = 0; pos < priv->firm_size; pos++) {
+			if ((priv->firm[pos].int_freq == int_freq) &&
+			    (priv->firm[pos].type & HAS_IF))
+				break;
+		}
+		if (pos == priv->firm_size)
+			return -ENOENT;
+	}
+
+	p = priv->firm[pos].ptr;
+
+	if (priv->firm[pos].size != 12 * 16 || scode >= 16)
+		return -EINVAL;
+	p += 12 * scode;
+
+	tuner_info("Loading SCODE for type=");
+	dump_firm_type_and_int_freq(priv->firm[pos].type,
+				    priv->firm[pos].int_freq);
+	printk("(%x), id %016llx.\n", priv->firm[pos].type,
+	       (unsigned long long)*id);
+
+	scode_buf[0] = 0x00;
+	memcpy(&scode_buf[1], p, 12);
+
+	/* Enter direct-mode */
+	rc = xc_write_reg(priv, XREG_DIRECTSITTING_MODE, 0);
+	if (rc < 0) {
+		printk("failed to put device into direct mode!\n");
+		return -EIO;
+	}
+
+	rc = xc_send_i2c_data(priv, scode_buf, 13);
+	if (rc != XC_RESULT_SUCCESS) {
+		/* Even if the send failed, make sure we set back to indirect
+		   mode */
+		printk("Failed to set scode %d\n", rc);
+	}
+
+	/* Switch back to indirect-mode */
+	memset(indirect_mode, 0, sizeof(indirect_mode));
+	indirect_mode[4] = 0x88;
+	xc_send_i2c_data(priv, indirect_mode, sizeof(indirect_mode));
+	msleep(10);
+
+	return 0;
+}
+
+static int check_firmware(struct dvb_frontend *fe, unsigned int type,
+			  v4l2_std_id std, __u16 int_freq)
+{
+	struct xc4000_priv         *priv = fe->tuner_priv;
+	struct firmware_properties new_fw;
+	int			   rc = 0, is_retry = 0;
+	u16			   version = 0, hwmodel;
+	v4l2_std_id		   std0;
+	u8			   hw_major, hw_minor, fw_major, fw_minor;
+
+	dprintk(1, "%s called\n", __func__);
+
+	if (!priv->firm) {
+		rc = xc4000_fwupload(fe);
+		if (rc < 0)
+			return rc;
+	}
+
+#ifdef DJH_DEBUG
+	if (priv->ctrl.mts && !(type & FM))
+		type |= MTS;
+#endif
+
+retry:
+	new_fw.type = type;
+	new_fw.id = std;
+	new_fw.std_req = std;
+	new_fw.scode_table = SCODE /* | priv->ctrl.scode_table */;
+	new_fw.scode_nr = 0;
+	new_fw.int_freq = int_freq;
+
+	dprintk(1, "checking firmware, user requested type=");
+	if (debug) {
+		dump_firm_type(new_fw.type);
+		printk("(%x), id %016llx, ", new_fw.type,
+		       (unsigned long long)new_fw.std_req);
+		if (!int_freq) {
+			printk("scode_tbl ");
+#ifdef DJH_DEBUG
+			dump_firm_type(priv->ctrl.scode_table);
+			printk("(%x), ", priv->ctrl.scode_table);
+#endif
+		} else
+			printk("int_freq %d, ", new_fw.int_freq);
+		printk("scode_nr %d\n", new_fw.scode_nr);
+	}
+
+	/* No need to reload base firmware if it matches */
+	if (priv->cur_fw.type & BASE) {
+		dprintk(1, "BASE firmware not changed.\n");
+		goto skip_base;
+	}
+
+	/* Updating BASE - forget about all currently loaded firmware */
+	memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
+
+	/* Reset is needed before loading firmware */
+	rc = xc4000_TunerReset(fe);
+	if (rc < 0)
+		goto fail;
+
+	/* BASE firmwares are all std0 */
+	std0 = 0;
+	rc = load_firmware(fe, BASE, &std0);
+	if (rc < 0) {
+		printk("Error %d while loading base firmware\n", rc);
+		goto fail;
+	}
+
+	/* Load INIT1, if needed */
+	dprintk(1, "Load init1 firmware, if exists\n");
+
+	rc = load_firmware(fe, BASE | INIT1, &std0);
+	if (rc == -ENOENT)
+		rc = load_firmware(fe, BASE | INIT1, &std0);
+	if (rc < 0 && rc != -ENOENT) {
+		tuner_err("Error %d while loading init1 firmware\n",
+			  rc);
+		goto fail;
+	}
+
+skip_base:
+	/*
+	 * No need to reload standard specific firmware if base firmware
+	 * was not reloaded and requested video standards have not changed.
+	 */
+	if (priv->cur_fw.type == (BASE | new_fw.type) &&
+	    priv->cur_fw.std_req == std) {
+		dprintk(1, "Std-specific firmware already loaded.\n");
+		goto skip_std_specific;
+	}
+
+	/* Reloading std-specific firmware forces a SCODE update */
+	priv->cur_fw.scode_table = 0;
+
+	/* Load the standard firmware */
+	rc = load_firmware(fe, new_fw.type, &new_fw.id);
+
+	if (rc < 0)
+		goto fail;
+
+skip_std_specific:
+	if (priv->cur_fw.scode_table == new_fw.scode_table &&
+	    priv->cur_fw.scode_nr == new_fw.scode_nr) {
+		dprintk(1, "SCODE firmware already loaded.\n");
+		goto check_device;
+	}
+
+	/* Load SCODE firmware, if exists */
+	rc = load_scode(fe, new_fw.type | new_fw.scode_table, &new_fw.id,
+			new_fw.int_freq, new_fw.scode_nr);
+	if (rc != XC_RESULT_SUCCESS)
+		dprintk(1, "load scode failed %d\n", rc);
+
+check_device:
+	rc = xc4000_readreg(priv, XREG_PRODUCT_ID, &hwmodel);
+
+	if (xc_get_version(priv, &hw_major, &hw_minor, &fw_major,
+			   &fw_minor) != XC_RESULT_SUCCESS) {
+		printk("Unable to read tuner registers.\n");
+		goto fail;
+	}
+
+	dprintk(1, "Device is Xceive %d version %d.%d, "
+		"firmware version %d.%d\n",
+		hwmodel, hw_major, hw_minor, fw_major, fw_minor);
+
+	/* Check firmware version against what we downloaded. */
+#ifdef DJH_DEBUG
+	if (priv->firm_version != ((version & 0xf0) << 4 | (version & 0x0f))) {
+		printk("Incorrect readback of firmware version %x.\n",
+		       (version & 0xff));
+		goto fail;
+	}
+#endif
+
+	/* Check that the tuner hardware model remains consistent over time. */
+	if (priv->hwmodel == 0 &&
+	    (hwmodel == XC_PRODUCT_ID_XC4000 ||
+	     hwmodel == XC_PRODUCT_ID_XC4100)) {
+		priv->hwmodel = hwmodel;
+		priv->hwvers  = version & 0xff00;
+	} else if (priv->hwmodel == 0 || priv->hwmodel != hwmodel ||
+		   priv->hwvers != (version & 0xff00)) {
+		printk("Read invalid device hardware information - tuner "
+		       "hung?\n");
+		goto fail;
+	}
+
+	memcpy(&priv->cur_fw, &new_fw, sizeof(priv->cur_fw));
+
+	/*
+	 * By setting BASE in cur_fw.type only after successfully loading all
+	 * firmwares, we can:
+	 * 1. Identify that BASE firmware with type=0 has been loaded;
+	 * 2. Tell whether BASE firmware was just changed the next time through.
+	 */
+	priv->cur_fw.type |= BASE;
+
+	return 0;
+
+fail:
+	memset(&priv->cur_fw, 0, sizeof(priv->cur_fw));
+	if (!is_retry) {
+		msleep(50);
+		is_retry = 1;
+		dprintk(1, "Retrying firmware load\n");
+		goto retry;
+	}
+
+	if (rc == -ENOENT)
+		rc = -EINVAL;
+	return rc;
+}
+
+static void xc_debug_dump(struct xc4000_priv *priv)
+{
+	u16	adc_envelope;
+	u32	freq_error_hz = 0;
+	u16	lock_status;
+	u32	hsync_freq_hz = 0;
+	u16	frame_lines;
+	u16	quality;
+	u8	hw_majorversion = 0, hw_minorversion = 0;
+	u8	fw_majorversion = 0, fw_minorversion = 0;
+
+	xc_get_ADC_Envelope(priv, &adc_envelope);
+	dprintk(1, "*** ADC envelope (0-1023) = %d\n", adc_envelope);
+
+	xc_get_frequency_error(priv, &freq_error_hz);
+	dprintk(1, "*** Frequency error = %d Hz\n", freq_error_hz);
+
+	xc_get_lock_status(priv, &lock_status);
+	dprintk(1, "*** Lock status (0-Wait, 1-Locked, 2-No-signal) = %d\n",
+		lock_status);
+
+	xc_get_version(priv, &hw_majorversion, &hw_minorversion,
+		       &fw_majorversion, &fw_minorversion);
+	dprintk(1, "*** HW: V%02x.%02x, FW: V%02x.%02x\n",
+		hw_majorversion, hw_minorversion,
+		fw_majorversion, fw_minorversion);
+
+	if (priv->video_standard < XC4000_DTV6) {
+		xc_get_hsync_freq(priv, &hsync_freq_hz);
+		dprintk(1, "*** Horizontal sync frequency = %d Hz\n",
+			hsync_freq_hz);
+
+		xc_get_frame_lines(priv, &frame_lines);
+		dprintk(1, "*** Frame lines = %d\n", frame_lines);
+	}
+
+	xc_get_quality(priv, &quality);
+	dprintk(1, "*** Quality (0:<8dB, 7:>56dB) = %d\n", quality);
+}
+
+static int xc4000_set_params(struct dvb_frontend *fe,
+	struct dvb_frontend_parameters *params)
+{
+	struct xc4000_priv *priv = fe->tuner_priv;
+	unsigned int type;
+	int	ret = -EREMOTEIO;
+
+	dprintk(1, "%s() frequency=%d (Hz)\n", __func__, params->frequency);
+
+	mutex_lock(&priv->lock);
+
+	if (fe->ops.info.type == FE_ATSC) {
+		dprintk(1, "%s() ATSC\n", __func__);
+		switch (params->u.vsb.modulation) {
+		case VSB_8:
+		case VSB_16:
+			dprintk(1, "%s() VSB modulation\n", __func__);
+			priv->rf_mode = XC_RF_MODE_AIR;
+			priv->freq_hz = params->frequency - 1750000;
+			priv->bandwidth = BANDWIDTH_6_MHZ;
+			priv->video_standard = XC4000_DTV6;
+			type = DTV6;
+			break;
+		case QAM_64:
+		case QAM_256:
+		case QAM_AUTO:
+			dprintk(1, "%s() QAM modulation\n", __func__);
+			priv->rf_mode = XC_RF_MODE_CABLE;
+			priv->freq_hz = params->frequency - 1750000;
+			priv->bandwidth = BANDWIDTH_6_MHZ;
+			priv->video_standard = XC4000_DTV6;
+			type = DTV6;
+			break;
+		default:
+			ret = -EINVAL;
+			goto fail;
+		}
+	} else if (fe->ops.info.type == FE_OFDM) {
+		dprintk(1, "%s() OFDM\n", __func__);
+		switch (params->u.ofdm.bandwidth) {
+		case BANDWIDTH_6_MHZ:
+			priv->bandwidth = BANDWIDTH_6_MHZ;
+			priv->video_standard = XC4000_DTV6;
+			priv->freq_hz = params->frequency - 1750000;
+			type = DTV6;
+			break;
+		case BANDWIDTH_7_MHZ:
+			priv->bandwidth = BANDWIDTH_7_MHZ;
+			priv->video_standard = XC4000_DTV7;
+			priv->freq_hz = params->frequency - 2250000;
+			type = DTV7;
+			break;
+		case BANDWIDTH_8_MHZ:
+			priv->bandwidth = BANDWIDTH_8_MHZ;
+			priv->video_standard = XC4000_DTV8;
+			priv->freq_hz = params->frequency - 2750000;
+			type = DTV8;
+			break;
+		case BANDWIDTH_AUTO:
+			if (params->frequency < 400000000) {
+				priv->bandwidth = BANDWIDTH_7_MHZ;
+				priv->freq_hz = params->frequency - 2250000;
+			} else {
+				priv->bandwidth = BANDWIDTH_8_MHZ;
+				priv->freq_hz = params->frequency - 2750000;
+			}
+			priv->video_standard = XC4000_DTV7_8;
+			type = DTV78;
+			break;
+		default:
+			printk(KERN_ERR "xc4000 bandwidth not set!\n");
+			ret = -EINVAL;
+			goto fail;
+		}
+		priv->rf_mode = XC_RF_MODE_AIR;
+	} else {
+		printk(KERN_ERR "xc4000 modulation type not supported!\n");
+		ret = -EINVAL;
+		goto fail;
+	}
+
+	dprintk(1, "%s() frequency=%d (compensated)\n",
+		__func__, priv->freq_hz);
+
+	/* Make sure the correct firmware type is loaded */
+	if (check_firmware(fe, type, 0, priv->if_khz) != XC_RESULT_SUCCESS)
+		goto fail;
+
+	ret = xc_SetSignalSource(priv, priv->rf_mode);
+	if (ret != XC_RESULT_SUCCESS) {
+		printk(KERN_ERR
+		       "xc4000: xc_SetSignalSource(%d) failed\n",
+		       priv->rf_mode);
+		goto fail;
+	} else {
+		u16	video_mode, audio_mode;
+		video_mode = XC4000_Standard[priv->video_standard].VideoMode;
+		audio_mode = XC4000_Standard[priv->video_standard].AudioMode;
+		if (type == DTV6 && priv->firm_version != 0x0102)
+			video_mode |= 0x0001;
+		ret = xc_SetTVStandard(priv, video_mode, audio_mode);
+		if (ret != XC_RESULT_SUCCESS) {
+			printk(KERN_ERR "xc4000: xc_SetTVStandard failed\n");
+			/* DJH - do not return when it fails... */
+			/* goto fail; */
+		}
+	}
+
+	if (priv->card_type == XC4000_CARD_WINFAST_CX88) {
+		if (xc_write_reg(priv, XREG_D_CODE, 0) == 0)
+			ret = 0;
+		if (xc_write_reg(priv, XREG_AMPLITUDE,
+				 (priv->firm_version == 0x0102 ? 132 : 134))
+		    != 0)
+			ret = -EREMOTEIO;
+		if (xc_write_reg(priv, XREG_SMOOTHEDCVBS, 1) != 0)
+			ret = -EREMOTEIO;
+		if (ret != 0) {
+			printk(KERN_ERR "xc4000: setting registers failed\n");
+			/* goto fail; */
+		}
+	}
+
+	xc_tune_channel(priv, priv->freq_hz);
+
+	ret = 0;
+
+fail:
+	mutex_unlock(&priv->lock);
+
+	return ret;
+}
+
+static int xc4000_set_analog_params(struct dvb_frontend *fe,
+	struct analog_parameters *params)
+{
+	struct xc4000_priv *priv = fe->tuner_priv;
+	unsigned int type = 0;
+	int	ret = -EREMOTEIO;
+
+	if (params->mode == V4L2_TUNER_RADIO) {
+		dprintk(1, "%s() frequency=%d (in units of 62.5Hz)\n",
+			__func__, params->frequency);
+
+		mutex_lock(&priv->lock);
+
+		params->std = 0;
+		priv->freq_hz = params->frequency * 125L / 2;
+
+		if (audio_std & XC4000_AUDIO_STD_INPUT1) {
+			priv->video_standard = XC4000_FM_Radio_INPUT1;
+			type = FM | INPUT1;
+		} else {
+			priv->video_standard = XC4000_FM_Radio_INPUT2;
+			type = FM | INPUT2;
+		}
+
+		goto tune_channel;
+	}
+
+	dprintk(1, "%s() frequency=%d (in units of 62.5khz)\n",
+		__func__, params->frequency);
+
+	mutex_lock(&priv->lock);
+
+	/* params->frequency is in units of 62.5khz */
+	priv->freq_hz = params->frequency * 62500;
+
+	params->std &= V4L2_STD_ALL;
+	/* if std is not defined, choose one */
+	if (!params->std)
+		params->std = V4L2_STD_PAL_BG;
+
+	if (audio_std & XC4000_AUDIO_STD_MONO)
+		type = MONO;
+
+	if (params->std & V4L2_STD_MN) {
+		params->std = V4L2_STD_MN;
+		if (audio_std & XC4000_AUDIO_STD_MONO) {
+			priv->video_standard = XC4000_MN_NTSC_PAL_Mono;
+		} else if (audio_std & XC4000_AUDIO_STD_A2) {
+			params->std |= V4L2_STD_A2;
+			priv->video_standard = XC4000_MN_NTSC_PAL_A2;
+		} else {
+			params->std |= V4L2_STD_BTSC;
+			priv->video_standard = XC4000_MN_NTSC_PAL_BTSC;
+		}
+		goto tune_channel;
+	}
+
+	if (params->std & V4L2_STD_PAL_BG) {
+		params->std = V4L2_STD_PAL_BG;
+		if (audio_std & XC4000_AUDIO_STD_MONO) {
+			priv->video_standard = XC4000_BG_PAL_MONO;
+		} else if (!(audio_std & XC4000_AUDIO_STD_A2)) {
+			if (!(audio_std & XC4000_AUDIO_STD_B)) {
+				params->std |= V4L2_STD_NICAM_A;
+				priv->video_standard = XC4000_BG_PAL_NICAM;
+			} else {
+				params->std |= V4L2_STD_NICAM_B;
+				priv->video_standard = XC4000_BG_PAL_NICAM;
+			}
+		} else {
+			if (!(audio_std & XC4000_AUDIO_STD_B)) {
+				params->std |= V4L2_STD_A2_A;
+				priv->video_standard = XC4000_BG_PAL_A2;
+			} else {
+				params->std |= V4L2_STD_A2_B;
+				priv->video_standard = XC4000_BG_PAL_A2;
+			}
+		}
+		goto tune_channel;
+	}
+
+	if (params->std & V4L2_STD_PAL_I) {
+		/* default to NICAM audio standard */
+		params->std = V4L2_STD_PAL_I | V4L2_STD_NICAM;
+		if (audio_std & XC4000_AUDIO_STD_MONO) {
+			priv->video_standard = XC4000_I_PAL_NICAM_MONO;
+		} else {
+			priv->video_standard = XC4000_I_PAL_NICAM;
+		}
+		goto tune_channel;
+	}
+
+	if (params->std & V4L2_STD_PAL_DK) {
+		params->std = V4L2_STD_PAL_DK;
+		if (audio_std & XC4000_AUDIO_STD_MONO) {
+			priv->video_standard = XC4000_DK_PAL_MONO;
+		} else if (audio_std & XC4000_AUDIO_STD_A2) {
+			params->std |= V4L2_STD_A2;
+			priv->video_standard = XC4000_DK_PAL_A2;
+		} else {
+			params->std |= V4L2_STD_NICAM;
+			priv->video_standard = XC4000_DK_PAL_NICAM;
+		}
+		goto tune_channel;
+	}
+
+	if (params->std & V4L2_STD_SECAM_DK) {
+		/* default to A2 audio standard */
+		params->std = V4L2_STD_SECAM_DK | V4L2_STD_A2;
+		if (audio_std & XC4000_AUDIO_STD_L) {
+			type = 0;
+			priv->video_standard = XC4000_DK_SECAM_NICAM;
+		} else if (audio_std & XC4000_AUDIO_STD_MONO) {
+			priv->video_standard = XC4000_DK_SECAM_A2MONO;
+		} else if (audio_std & XC4000_AUDIO_STD_K3) {
+			params->std |= V4L2_STD_SECAM_K3;
+			priv->video_standard = XC4000_DK_SECAM_A2LDK3;
+		} else {
+			priv->video_standard = XC4000_DK_SECAM_A2DK1;
+		}
+		goto tune_channel;
+	}
+
+	if (params->std & V4L2_STD_SECAM_L) {
+		/* default to NICAM audio standard */
+		type = 0;
+		params->std = V4L2_STD_SECAM_L | V4L2_STD_NICAM;
+		priv->video_standard = XC4000_L_SECAM_NICAM;
+		goto tune_channel;
+	}
+
+	if (params->std & V4L2_STD_SECAM_LC) {
+		/* default to NICAM audio standard */
+		type = 0;
+		params->std = V4L2_STD_SECAM_LC | V4L2_STD_NICAM;
+		priv->video_standard = XC4000_LC_SECAM_NICAM;
+		goto tune_channel;
+	}
+
+tune_channel:
+	/* Fix me: it could be air. */
+	priv->rf_mode = XC_RF_MODE_CABLE;
+
+	if (check_firmware(fe, type, params->std,
+			   XC4000_Standard[priv->video_standard].int_freq)
+	    != XC_RESULT_SUCCESS) {
+		goto fail;
+	}
+
+	ret = xc_SetSignalSource(priv, priv->rf_mode);
+	if (ret != XC_RESULT_SUCCESS) {
+		printk(KERN_ERR
+		       "xc4000: xc_SetSignalSource(%d) failed\n",
+		       priv->rf_mode);
+		goto fail;
+	} else {
+		u16	video_mode, audio_mode;
+		video_mode = XC4000_Standard[priv->video_standard].VideoMode;
+		audio_mode = XC4000_Standard[priv->video_standard].AudioMode;
+		if (priv->video_standard < XC4000_BG_PAL_A2) {
+			if (0 /*type & NOGD*/)
+				video_mode &= 0xFF7F;
+		} else if (priv->video_standard < XC4000_I_PAL_NICAM) {
+			if (priv->card_type == XC4000_CARD_WINFAST_CX88 &&
+			    priv->firm_version == 0x0102)
+				video_mode &= 0xFEFF;
+			if (audio_std & XC4000_AUDIO_STD_B)
+				video_mode |= 0x0080;
+		}
+		ret = xc_SetTVStandard(priv, video_mode, audio_mode);
+		if (ret != XC_RESULT_SUCCESS) {
+			printk(KERN_ERR "xc4000: xc_SetTVStandard failed\n");
+			goto fail;
+		}
+	}
+
+	if (priv->card_type == XC4000_CARD_WINFAST_CX88) {
+		if (xc_write_reg(priv, XREG_D_CODE, 0) == 0)
+			ret = 0;
+		if (xc_write_reg(priv, XREG_AMPLITUDE, 1) != 0)
+			ret = -EREMOTEIO;
+		if (xc_write_reg(priv, XREG_SMOOTHEDCVBS, 1) != 0)
+			ret = -EREMOTEIO;
+		if (ret != 0) {
+			printk(KERN_ERR "xc4000: setting registers failed\n");
+			goto fail;
+		}
+	}
+
+	xc_tune_channel(priv, priv->freq_hz);
+
+	ret = 0;
+
+fail:
+	mutex_unlock(&priv->lock);
+
+	return ret;
+}
+
+static int xc4000_get_frequency(struct dvb_frontend *fe, u32 *freq)
+{
+	struct xc4000_priv *priv = fe->tuner_priv;
+
+	*freq = priv->freq_hz;
+
+	if (debug) {
+		mutex_lock(&priv->lock);
+		if ((priv->cur_fw.type
+		     & (BASE | FM | DTV6 | DTV7 | DTV78 | DTV8)) == BASE) {
+			u16	snr = 0;
+			if (xc4000_readreg(priv, XREG_SNR, &snr) == 0) {
+				mutex_unlock(&priv->lock);
+				dprintk(1, "%s() freq = %u, SNR = %d\n",
+					__func__, *freq, snr);
+				return 0;
+			}
+		}
+		mutex_unlock(&priv->lock);
+	}
+
+	dprintk(1, "%s()\n", __func__);
+
+	return 0;
+}
+
+static int xc4000_get_bandwidth(struct dvb_frontend *fe, u32 *bw)
+{
+	struct xc4000_priv *priv = fe->tuner_priv;
+	dprintk(1, "%s()\n", __func__);
+
+	*bw = priv->bandwidth;
+	return 0;
+}
+
+static int xc4000_get_status(struct dvb_frontend *fe, u32 *status)
+{
+	struct xc4000_priv *priv = fe->tuner_priv;
+	u16	lock_status = 0;
+
+	mutex_lock(&priv->lock);
+
+	if (priv->cur_fw.type & BASE)
+		xc_get_lock_status(priv, &lock_status);
+
+	*status = (lock_status == 1 ?
+		   TUNER_STATUS_LOCKED | TUNER_STATUS_STEREO : 0);
+	if (priv->cur_fw.type & (DTV6 | DTV7 | DTV78 | DTV8))
+		*status &= (~TUNER_STATUS_STEREO);
+
+	mutex_unlock(&priv->lock);
+
+	dprintk(2, "%s() lock_status = %d\n", __func__, lock_status);
+
+	return 0;
+}
+
+static int xc4000_sleep(struct dvb_frontend *fe)
+{
+	struct xc4000_priv *priv = fe->tuner_priv;
+	int	ret = XC_RESULT_SUCCESS;
+
+	dprintk(1, "%s()\n", __func__);
+
+	mutex_lock(&priv->lock);
+
+	/* Avoid firmware reload on slow devices */
+	if ((no_poweroff == 2 ||
+	     (no_poweroff == 0 &&
+	      priv->card_type != XC4000_CARD_WINFAST_CX88)) &&
+	    (priv->cur_fw.type & BASE) != 0) {
+		/* force reset and firmware reload */
+		priv->cur_fw.type = XC_POWERED_DOWN;
+
+		if (xc_write_reg(priv, XREG_POWER_DOWN, 0)
+		    != XC_RESULT_SUCCESS) {
+			printk(KERN_ERR
+			       "xc4000: %s() unable to shutdown tuner\n",
+			       __func__);
+			ret = -EREMOTEIO;
+		}
+		xc_wait(20);
+	}
+
+	mutex_unlock(&priv->lock);
+
+	return ret;
+}
+
+static int xc4000_init(struct dvb_frontend *fe)
+{
+	dprintk(1, "%s()\n", __func__);
+
+	return 0;
+}
+
+static int xc4000_release(struct dvb_frontend *fe)
+{
+	struct xc4000_priv *priv = fe->tuner_priv;
+
+	dprintk(1, "%s()\n", __func__);
+
+	mutex_lock(&xc4000_list_mutex);
+
+	if (priv)
+		hybrid_tuner_release_state(priv);
+
+	mutex_unlock(&xc4000_list_mutex);
+
+	fe->tuner_priv = NULL;
+
+	return 0;
+}
+
+static const struct dvb_tuner_ops xc4000_tuner_ops = {
+	.info = {
+		.name           = "Xceive XC4000",
+		.frequency_min  =    1000000,
+		.frequency_max  = 1023000000,
+		.frequency_step =      50000,
+	},
+
+	.release	   = xc4000_release,
+	.init		   = xc4000_init,
+	.sleep		   = xc4000_sleep,
+
+	.set_params	   = xc4000_set_params,
+	.set_analog_params = xc4000_set_analog_params,
+	.get_frequency	   = xc4000_get_frequency,
+	.get_bandwidth	   = xc4000_get_bandwidth,
+	.get_status	   = xc4000_get_status
+};
+
+struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe,
+				   struct i2c_adapter *i2c,
+				   struct xc4000_config *cfg)
+{
+	struct xc4000_priv *priv = NULL;
+	int	instance;
+	u16	id = 0;
+
+	if (cfg->card_type != XC4000_CARD_GENERIC) {
+		if (cfg->card_type == XC4000_CARD_WINFAST_CX88) {
+			cfg->i2c_address = 0x61;
+			cfg->if_khz = 4560;
+		} else {			/* default to PCTV 340E */
+			cfg->i2c_address = 0x61;
+			cfg->if_khz = 5400;
+		}
+	}
+
+	dprintk(1, "%s(%d-%04x)\n", __func__,
+		i2c ? i2c_adapter_id(i2c) : -1,
+		cfg ? cfg->i2c_address : -1);
+
+	mutex_lock(&xc4000_list_mutex);
+
+	instance = hybrid_tuner_request_state(struct xc4000_priv, priv,
+					      hybrid_tuner_instance_list,
+					      i2c, cfg->i2c_address, "xc4000");
+	if (cfg->card_type != XC4000_CARD_GENERIC)
+		priv->card_type = cfg->card_type;
+	switch (instance) {
+	case 0:
+		goto fail;
+		break;
+	case 1:
+		/* new tuner instance */
+		priv->bandwidth = BANDWIDTH_6_MHZ;
+		mutex_init(&priv->lock);
+		fe->tuner_priv = priv;
+		break;
+	default:
+		/* existing tuner instance */
+		fe->tuner_priv = priv;
+		break;
+	}
+
+	if (cfg->if_khz != 0) {
+		/* If the IF hasn't been set yet, use the value provided by
+		   the caller (occurs in hybrid devices where the analog
+		   call to xc4000_attach occurs before the digital side) */
+		priv->if_khz = cfg->if_khz;
+	}
+
+	/* Check if firmware has been loaded. It is possible that another
+	   instance of the driver has loaded the firmware.
+	 */
+
+	if (instance == 1) {
+		if (xc4000_readreg(priv, XREG_PRODUCT_ID, &id)
+		    != XC_RESULT_SUCCESS)
+			goto fail;
+	} else {
+		id = ((priv->cur_fw.type & BASE) != 0 ?
+		      priv->hwmodel : XC_PRODUCT_ID_FW_NOT_LOADED);
+	}
+
+	switch (id) {
+	case XC_PRODUCT_ID_XC4000:
+	case XC_PRODUCT_ID_XC4100:
+		printk(KERN_INFO
+			"xc4000: Successfully identified at address 0x%02x\n",
+			cfg->i2c_address);
+		printk(KERN_INFO
+			"xc4000: Firmware has been loaded previously\n");
+		break;
+	case XC_PRODUCT_ID_FW_NOT_LOADED:
+		printk(KERN_INFO
+			"xc4000: Successfully identified at address 0x%02x\n",
+			cfg->i2c_address);
+		printk(KERN_INFO
+			"xc4000: Firmware has not been loaded previously\n");
+		break;
+	default:
+		printk(KERN_ERR
+			"xc4000: Device not found at addr 0x%02x (0x%x)\n",
+			cfg->i2c_address, id);
+		goto fail;
+	}
+
+	mutex_unlock(&xc4000_list_mutex);
+
+	memcpy(&fe->ops.tuner_ops, &xc4000_tuner_ops,
+		sizeof(struct dvb_tuner_ops));
+
+	if (instance == 1) {
+		int	ret;
+		mutex_lock(&priv->lock);
+		ret = xc4000_fwupload(fe);
+		mutex_unlock(&priv->lock);
+		if (ret != XC_RESULT_SUCCESS)
+			goto fail2;
+	}
+
+	return fe;
+fail:
+	mutex_unlock(&xc4000_list_mutex);
+fail2:
+	xc4000_release(fe);
+	return NULL;
+}
+EXPORT_SYMBOL(xc4000_attach);
+
+MODULE_AUTHOR("Steven Toth, Davide Ferri");
+MODULE_DESCRIPTION("Xceive xc4000 silicon tuner driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/media/common/tuners/xc4000.h b/drivers/media/common/tuners/xc4000.h
new file mode 100644
index 0000000..d560d01
--- /dev/null
+++ b/drivers/media/common/tuners/xc4000.h
@@ -0,0 +1,66 @@ 
+/*
+ *  Driver for Xceive XC4000 "QAM/8VSB single chip tuner"
+ *
+ *  Copyright (c) 2007 Steven Toth <stoth@linuxtv.org>
+ *
+ *  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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef __XC4000_H__
+#define __XC4000_H__
+
+#include <linux/firmware.h>
+
+struct dvb_frontend;
+struct i2c_adapter;
+
+#define XC4000_CARD_GENERIC		0
+#define XC4000_CARD_PCTV_340E		1
+#define XC4000_CARD_WINFAST_CX88	2
+
+struct xc4000_config {
+	u8	card_type;	/* if card type is not generic, all other */
+	u8	i2c_address;	/* parameters are automatically set */
+	u32	if_khz;
+};
+
+/* xc4000 callback command */
+#define XC4000_TUNER_RESET		0
+
+/* For each bridge framework, when it attaches either analog or digital,
+ * it has to store a reference back to its _core equivalent structure,
+ * so that it can service the hardware by steering gpio's etc.
+ * Each bridge implementation is different so cast devptr accordingly.
+ * The xc4000 driver cares not for this value, other than ensuring
+ * it's passed back to a bridge during tuner_callback().
+ */
+
+#if defined(CONFIG_MEDIA_TUNER_XC4000) || \
+    (defined(CONFIG_MEDIA_TUNER_XC4000_MODULE) && defined(MODULE))
+extern struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe,
+					  struct i2c_adapter *i2c,
+					  struct xc4000_config *cfg);
+#else
+static inline struct dvb_frontend *xc4000_attach(struct dvb_frontend *fe,
+						 struct i2c_adapter *i2c,
+						 struct xc4000_config *cfg)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+#endif
+
+#endif
diff --git a/drivers/media/dvb/dvb-usb/dib0700_devices.c b/drivers/media/dvb/dvb-usb/dib0700_devices.c
index c519ad5..a5212a5 100644
--- a/drivers/media/dvb/dvb-usb/dib0700_devices.c
+++ b/drivers/media/dvb/dvb-usb/dib0700_devices.c
@@ -17,6 +17,7 @@ 
 #include "mt2266.h"
 #include "tuner-xc2028.h"
 #include "xc5000.h"
+#include "xc4000.h"
 #include "s5h1411.h"
 #include "dib0070.h"
 #include "dib0090.h"
@@ -2655,6 +2656,153 @@  static int xc5000_tuner_attach(struct dvb_usb_adapter *adap)
 		== NULL ? -ENODEV : 0;
 }
 
+static int dib0700_xc4000_tuner_callback(void *priv, int component,
+					 int command, int arg)
+{
+	struct dvb_usb_adapter *adap = priv;
+
+	if (command == XC4000_TUNER_RESET) {
+		/* Reset the tuner */
+		dib7000p_set_gpio(adap->fe, 8, 0, 0);
+		msleep(10);
+		dib7000p_set_gpio(adap->fe, 8, 0, 1);
+	} else {
+		err("xc4000: unknown tuner callback command: %d\n", command);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static struct dibx000_agc_config stk7700p_7000p_xc4000_agc_config = {
+	.band_caps = BAND_UHF | BAND_VHF,
+	.setup = 0x64,
+	.inv_gain = 0x02c8,
+	.time_stabiliz = 0x15,
+	.alpha_level = 0x00,
+	.thlock = 0x76,
+	.wbd_inv = 0x01,
+	.wbd_ref = 0x0b33,
+	.wbd_sel = 0x00,
+	.wbd_alpha = 0x02,
+	.agc1_max = 0x00,
+	.agc1_min = 0x00,
+	.agc2_max = 0x9b26,
+	.agc2_min = 0x26ca,
+	.agc1_pt1 = 0x00,
+	.agc1_pt2 = 0x00,
+	.agc1_pt3 = 0x00,
+	.agc1_slope1 = 0x00,
+	.agc1_slope2 = 0x00,
+	.agc2_pt1 = 0x00,
+	.agc2_pt2 = 0x80,
+	.agc2_slope1 = 0x1d,
+	.agc2_slope2 = 0x1d,
+	.alpha_mant = 0x11,
+	.alpha_exp = 0x1b,
+	.beta_mant = 0x17,
+	.beta_exp = 0x33,
+	.perform_agc_softsplit = 0x00,
+};
+
+static struct dibx000_bandwidth_config stk7700p_xc4000_pll_config = {
+	60000, 30000, // internal, sampling
+	1, 8, 3, 1, 0, // pll_cfg: prediv, ratio, range, reset, bypass
+	0, 0, 1, 1, 0, // misc: refdiv, bypclk_div, IO_CLK_en_core, ADClkSrc, modulo
+	(3 << 14) | (1 << 12) | (524 << 0), // sad_cfg: refsel, sel, freq_15k
+	39370534, // ifreq
+	20452225, // timf
+	30000000, // xtal
+};
+
+/* FIXME: none of these inputs are validated yet */
+static struct dib7000p_config pctv_340e_config = {
+	.output_mpeg2_in_188_bytes = 1,
+
+	.agc_config_count = 1,
+	.agc = &stk7700p_7000p_xc4000_agc_config,
+	.bw  = &stk7700p_xc4000_pll_config,
+
+	.gpio_dir = DIB7000M_GPIO_DEFAULT_DIRECTIONS,
+	.gpio_val = DIB7000M_GPIO_DEFAULT_VALUES,
+	.gpio_pwm_pos = DIB7000M_GPIO_DEFAULT_PWM_POS,
+};
+
+/* PCTV 340e GPIOs map:
+   dib0700:
+   GPIO2  - CX25843 sleep
+   GPIO3  - CS5340 reset
+   GPIO5  - IRD
+   GPIO6  - Power Supply
+   GPIO8  - LNA (1=off 0=on)
+   GPIO10 - CX25843 reset
+   dib7000:
+   GPIO8  - xc4000 reset
+ */
+static int pctv340e_frontend_attach(struct dvb_usb_adapter *adap)
+{
+	struct dib0700_state *st = adap->dev->priv;
+
+	/* Power Supply on */
+	dib0700_set_gpio(adap->dev, GPIO6,  GPIO_OUT, 0);
+	msleep(50);
+	dib0700_set_gpio(adap->dev, GPIO6,  GPIO_OUT, 1);
+	msleep(100); /* Allow power supply to settle before probing */
+
+	/* cx25843 reset */
+	dib0700_set_gpio(adap->dev, GPIO10,  GPIO_OUT, 0);
+	msleep(1); /* cx25843 datasheet say 350us required */
+	dib0700_set_gpio(adap->dev, GPIO10,  GPIO_OUT, 1);
+
+	/* LNA off for now */
+	dib0700_set_gpio(adap->dev, GPIO8,  GPIO_OUT, 1);
+
+	/* Put the CX25843 to sleep for now since we're in digital mode */
+	dib0700_set_gpio(adap->dev, GPIO2, GPIO_OUT, 1);
+
+	/* FIXME: not verified yet */
+	dib0700_ctrl_clock(adap->dev, 72, 1);
+
+	msleep(500);
+
+	if (dib7000pc_detection(&adap->dev->i2c_adap) == 0) {
+		/* Demodulator not found for some reason? */
+		return -ENODEV;
+	}
+
+	adap->fe = dvb_attach(dib7000p_attach, &adap->dev->i2c_adap, 0x12,
+			      &pctv_340e_config);
+	st->is_dib7000pc = 1;
+
+	return adap->fe == NULL ? -ENODEV : 0;
+}
+
+
+static struct xc4000_config dib7000p_xc4000_tunerconfig = {
+	.i2c_address      = 0x61,
+	.if_khz           = 5400,
+};
+
+static int xc4000_tuner_attach(struct dvb_usb_adapter *adap)
+{
+	struct i2c_adapter *tun_i2c;
+
+	/* The xc4000 is not on the main i2c bus */
+	tun_i2c = dib7000p_get_i2c_master(adap->fe,
+					  DIBX000_I2C_INTERFACE_TUNER, 1);
+	if (tun_i2c == NULL) {
+		printk("Could not reach tuner i2c bus\n");
+		return 0;
+	}
+
+	/* Setup the reset callback */
+	adap->fe->callback = dib0700_xc4000_tuner_callback;
+
+	return dvb_attach(xc4000_attach, adap->fe, tun_i2c,
+			  &dib7000p_xc4000_tunerconfig)
+		== NULL ? -ENODEV : 0;
+}
+
 static struct lgdt3305_config hcw_lgdt3305_config = {
 	.i2c_addr           = 0x0e,
 	.mpeg_mode          = LGDT3305_MPEG_PARALLEL,
@@ -2802,6 +2950,8 @@  struct usb_device_id dib0700_usb_id_table[] = {
 	{ USB_DEVICE(USB_VID_DIBCOM,    USB_PID_DIBCOM_TFE7090PVR) },
 	{ USB_DEVICE(USB_VID_TECHNISAT, USB_PID_TECHNISAT_AIRSTAR_TELESTICK_2) },
 /* 75 */{ USB_DEVICE(USB_VID_MEDION,    USB_PID_CREATIX_CTX1921) },
+	{ USB_DEVICE(USB_VID_PINNACLE,  USB_PID_PINNACLE_PCTV340E) },
+	{ USB_DEVICE(USB_VID_PINNACLE,  USB_PID_PINNACLE_PCTV340E_SE) },
 	{ 0 }		/* Terminating entry */
 };
 MODULE_DEVICE_TABLE(usb, dib0700_usb_id_table);
@@ -3772,6 +3922,41 @@  struct dvb_usb_device_properties dib0700_devices[] = {
 					    RC_TYPE_NEC,
 			.change_protocol  = dib0700_change_protocol,
 		},
+	}, { DIB0700_DEFAULT_DEVICE_PROPERTIES,
+		.num_adapters = 1,
+		.adapter = {
+			{
+				.frontend_attach  = pctv340e_frontend_attach,
+				.tuner_attach     = xc4000_tuner_attach,
+
+				DIB0700_DEFAULT_STREAMING_CONFIG(0x02),
+
+				.size_of_priv = sizeof(struct
+						dib0700_adapter_state),
+			},
+		},
+
+		.num_device_descs = 2,
+		.devices = {
+			{   "Pinnacle PCTV 340e HD Pro USB Stick",
+				{ &dib0700_usb_id_table[76], NULL },
+				{ NULL },
+			},
+			{   "Pinnacle PCTV Hybrid Stick Solo",
+				{ &dib0700_usb_id_table[77], NULL },
+				{ NULL },
+			},
+		},
+		.rc.core = {
+			.rc_interval      = DEFAULT_RC_INTERVAL,
+			.rc_codes         = RC_MAP_DIB0700_RC5_TABLE,
+			.module_name	  = "dib0700",
+			.rc_query         = dib0700_rc_query_old_firmware,
+			.allowed_protos   = RC_TYPE_RC5 |
+					    RC_TYPE_RC6 |
+					    RC_TYPE_NEC,
+			.change_protocol  = dib0700_change_protocol,
+		},
 	},
 };
 
diff --git a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h
index 21b1549..20e4788 100644
--- a/drivers/media/dvb/dvb-usb/dvb-usb-ids.h
+++ b/drivers/media/dvb/dvb-usb/dvb-usb-ids.h
@@ -230,6 +230,8 @@ 
 #define USB_PID_PINNACLE_PCTV310E			0x3211
 #define USB_PID_PINNACLE_PCTV801E			0x023a
 #define USB_PID_PINNACLE_PCTV801E_SE			0x023b
+#define USB_PID_PINNACLE_PCTV340E			0x023d
+#define USB_PID_PINNACLE_PCTV340E_SE			0x023e
 #define USB_PID_PINNACLE_PCTV73A			0x0243
 #define USB_PID_PINNACLE_PCTV73ESE			0x0245
 #define USB_PID_PINNACLE_PCTV74E			0x0246
diff --git a/drivers/media/dvb/frontends/dib7000p.c b/drivers/media/dvb/frontends/dib7000p.c
index 0c9f40c..a64a538 100644
--- a/drivers/media/dvb/frontends/dib7000p.c
+++ b/drivers/media/dvb/frontends/dib7000p.c
@@ -2336,6 +2336,11 @@  struct dvb_frontend *dib7000p_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr,
 		request_firmware() will hit an OOPS (this should be moved somewhere
 		more common) */
 
+	/* FIXME: make sure the dev.parent field is initialized, or else
+	   request_firmware() will hit an OOPS (this should be moved somewhere
+	   more common) */
+	st->i2c_master.gated_tuner_i2c_adap.dev.parent = i2c_adap->dev.parent;
+
 	dibx000_init_i2c_master(&st->i2c_master, DIB7000P, st->i2c_adap, st->i2c_addr);
 
 	/* init 7090 tuner adapter */
diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c
index 9363ed9..417c6d1 100644
--- a/drivers/media/video/tuner-core.c
+++ b/drivers/media/video/tuner-core.c
@@ -39,6 +39,7 @@ 
 #include "tda9887.h"
 #include "xc5000.h"
 #include "tda18271.h"
+#include "xc4000.h"
 
 #define UNSET (-1U)
 
@@ -391,6 +392,19 @@  static void set_type(struct i2c_client *c, unsigned int type,
 		tune_now = 0;
 		break;
 	}
+	case TUNER_XC4000:
+	{
+		struct xc4000_config xc4000_cfg = {
+			.i2c_address	  = t->i2c->addr,
+			/* if_khz will be set when the digital dvb_attach() occurs */
+			.if_khz	  = 0,
+		};
+		if (!dvb_attach(xc4000_attach,
+				&t->fe, t->i2c->adapter, &xc4000_cfg))
+			goto attach_failed;
+		tune_now = 0;
+		break;
+	}
 	default:
 		if (!dvb_attach(simple_tuner_attach, &t->fe,
 				t->i2c->adapter, t->i2c->addr, t->type))
diff --git a/include/media/tuner.h b/include/media/tuner.h
index 963e334..89c290b 100644
--- a/include/media/tuner.h
+++ b/include/media/tuner.h
@@ -127,6 +127,8 @@ 
 #define TUNER_PHILIPS_FMD1216MEX_MK3	78
 #define TUNER_PHILIPS_FM1216MK5		79
 #define TUNER_PHILIPS_FQ1216LME_MK3	80	/* Active loopthrough, no FM */
+#define TUNER_XC4000			81	/* Xceive Silicon Tuner */
+
 #define TUNER_PARTSNIC_PTI_5NF05	81
 #define TUNER_PHILIPS_CU1216L           82
 #define TUNER_NXP_TDA18271		83