[media] rename most media/video usb drivers to media/usb

Rename all USB drivers with their own directory under
drivers/media/video into drivers/media/usb and update the
building system.

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

1 files changed, 809 insertions, 0 deletions

diff --git a/drivers/media/usb/em28xx/em28xx.h b/drivers/media/usb/em28xx/em28xx.h
new file mode 100644
index 000000000000..8757523e6863
--- /dev/null
+++ b/drivers/media/usb/em28xx/em28xx.h
@@ -0,0 +1,809 @@
+/*
+   em28xx.h - driver for Empia EM2800/EM2820/2840 USB video capture devices
+
+   Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com>
+		      Ludovico Cavedon <cavedon@sssup.it>
+		      Mauro Carvalho Chehab <mchehab@infradead.org>
+
+   Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de>
+
+   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 _EM28XX_H
+#define _EM28XX_H
+
+#include <linux/workqueue.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <linux/videodev2.h>
+
+#include <media/videobuf-vmalloc.h>
+#include <media/v4l2-device.h>
+#include <media/ir-kbd-i2c.h>
+#include <media/rc-core.h>
+#if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE)
+#include <media/videobuf-dvb.h>
+#endif
+#include "tuner-xc2028.h"
+#include "xc5000.h"
+#include "em28xx-reg.h"
+
+/* Boards supported by driver */
+#define EM2800_BOARD_UNKNOWN			0
+#define EM2820_BOARD_UNKNOWN			1
+#define EM2820_BOARD_TERRATEC_CINERGY_250	2
+#define EM2820_BOARD_PINNACLE_USB_2		3
+#define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2      4
+#define EM2820_BOARD_MSI_VOX_USB_2              5
+#define EM2800_BOARD_TERRATEC_CINERGY_200       6
+#define EM2800_BOARD_LEADTEK_WINFAST_USBII      7
+#define EM2800_BOARD_KWORLD_USB2800             8
+#define EM2820_BOARD_PINNACLE_DVC_90		9
+#define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900	10
+#define EM2880_BOARD_TERRATEC_HYBRID_XS		11
+#define EM2820_BOARD_KWORLD_PVRTV2800RF		12
+#define EM2880_BOARD_TERRATEC_PRODIGY_XS	13
+#define EM2820_BOARD_PROLINK_PLAYTV_USB2	14
+#define EM2800_BOARD_VGEAR_POCKETTV             15
+#define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_950	16
+#define EM2880_BOARD_PINNACLE_PCTV_HD_PRO	17
+#define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2	18
+#define EM2860_BOARD_SAA711X_REFERENCE_DESIGN	19
+#define EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600   20
+#define EM2800_BOARD_GRABBEEX_USB2800           21
+#define EM2750_BOARD_UNKNOWN			  22
+#define EM2750_BOARD_DLCW_130			  23
+#define EM2820_BOARD_DLINK_USB_TV		  24
+#define EM2820_BOARD_GADMEI_UTV310		  25
+#define EM2820_BOARD_HERCULES_SMART_TV_USB2	  26
+#define EM2820_BOARD_PINNACLE_USB_2_FM1216ME	  27
+#define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28
+#define EM2860_BOARD_TVP5150_REFERENCE_DESIGN	  29
+#define EM2820_BOARD_VIDEOLOGY_20K14XUSB	  30
+#define EM2821_BOARD_USBGEAR_VD204		  31
+#define EM2821_BOARD_SUPERCOMP_USB_2		  32
+#define EM2860_BOARD_ELGATO_VIDEO_CAPTURE	  33
+#define EM2860_BOARD_TERRATEC_HYBRID_XS		  34
+#define EM2860_BOARD_TYPHOON_DVD_MAKER		  35
+#define EM2860_BOARD_NETGMBH_CAM		  36
+#define EM2860_BOARD_GADMEI_UTV330		  37
+#define EM2861_BOARD_YAKUMO_MOVIE_MIXER		  38
+#define EM2861_BOARD_KWORLD_PVRTV_300U		  39
+#define EM2861_BOARD_PLEXTOR_PX_TV100U		  40
+#define EM2870_BOARD_KWORLD_350U		  41
+#define EM2870_BOARD_KWORLD_355U		  42
+#define EM2870_BOARD_TERRATEC_XS		  43
+#define EM2870_BOARD_TERRATEC_XS_MT2060		  44
+#define EM2870_BOARD_PINNACLE_PCTV_DVB		  45
+#define EM2870_BOARD_COMPRO_VIDEOMATE		  46
+#define EM2880_BOARD_KWORLD_DVB_305U		  47
+#define EM2880_BOARD_KWORLD_DVB_310U		  48
+#define EM2880_BOARD_MSI_DIGIVOX_AD		  49
+#define EM2880_BOARD_MSI_DIGIVOX_AD_II		  50
+#define EM2880_BOARD_TERRATEC_HYBRID_XS_FR	  51
+#define EM2881_BOARD_DNT_DA2_HYBRID		  52
+#define EM2881_BOARD_PINNACLE_HYBRID_PRO	  53
+#define EM2882_BOARD_KWORLD_VS_DVBT		  54
+#define EM2882_BOARD_TERRATEC_HYBRID_XS		  55
+#define EM2882_BOARD_PINNACLE_HYBRID_PRO_330E	  56
+#define EM2883_BOARD_KWORLD_HYBRID_330U                  57
+#define EM2820_BOARD_COMPRO_VIDEOMATE_FORYOU	  58
+#define EM2883_BOARD_HAUPPAUGE_WINTV_HVR_850	  60
+#define EM2820_BOARD_PROLINK_PLAYTV_BOX4_USB2	  61
+#define EM2820_BOARD_GADMEI_TVR200		  62
+#define EM2860_BOARD_KAIOMY_TVNPC_U2              63
+#define EM2860_BOARD_EASYCAP                      64
+#define EM2820_BOARD_IODATA_GVMVP_SZ		  65
+#define EM2880_BOARD_EMPIRE_DUAL_TV		  66
+#define EM2860_BOARD_TERRATEC_GRABBY		  67
+#define EM2860_BOARD_TERRATEC_AV350		  68
+#define EM2882_BOARD_KWORLD_ATSC_315U		  69
+#define EM2882_BOARD_EVGA_INDTUBE		  70
+#define EM2820_BOARD_SILVERCREST_WEBCAM           71
+#define EM2861_BOARD_GADMEI_UTV330PLUS           72
+#define EM2870_BOARD_REDDO_DVB_C_USB_BOX          73
+#define EM2800_BOARD_VC211A			  74
+#define EM2882_BOARD_DIKOM_DK300		  75
+#define EM2870_BOARD_KWORLD_A340		  76
+#define EM2874_BOARD_LEADERSHIP_ISDBT		  77
+#define EM28174_BOARD_PCTV_290E                   78
+#define EM2884_BOARD_TERRATEC_H5		  79
+#define EM28174_BOARD_PCTV_460E                   80
+#define EM2884_BOARD_HAUPPAUGE_WINTV_HVR_930C	  81
+#define EM2884_BOARD_CINERGY_HTC_STICK		  82
+#define EM2860_BOARD_HT_VIDBOX_NW03 		  83
+#define EM2874_BOARD_MAXMEDIA_UB425_TC            84
+#define EM2884_BOARD_PCTV_510E                    85
+#define EM2884_BOARD_PCTV_520E                    86
+
+/* Limits minimum and default number of buffers */
+#define EM28XX_MIN_BUF 4
+#define EM28XX_DEF_BUF 8
+
+/*Limits the max URB message size */
+#define URB_MAX_CTRL_SIZE 80
+
+/* Params for validated field */
+#define EM28XX_BOARD_NOT_VALIDATED 1
+#define EM28XX_BOARD_VALIDATED	   0
+
+/* Params for em28xx_cmd() audio */
+#define EM28XX_START_AUDIO      1
+#define EM28XX_STOP_AUDIO       0
+
+/* maximum number of em28xx boards */
+#define EM28XX_MAXBOARDS 4 /*FIXME: should be bigger */
+
+/* maximum number of frames that can be queued */
+#define EM28XX_NUM_FRAMES 5
+/* number of frames that get used for v4l2_read() */
+#define EM28XX_NUM_READ_FRAMES 2
+
+/* number of buffers for isoc transfers */
+#define EM28XX_NUM_BUFS 5
+#define EM28XX_DVB_NUM_BUFS 5
+
+/* number of packets for each buffer
+   windows requests only 64 packets .. so we better do the same
+   this is what I found out for all alternate numbers there!
+ */
+#define EM28XX_NUM_PACKETS 64
+#define EM28XX_DVB_MAX_PACKETS 64
+
+#define EM28XX_INTERLACED_DEFAULT 1
+
+/*
+#define (use usbview if you want to get the other alternate number infos)
+#define
+#define alternate number 2
+#define 			Endpoint Address: 82
+			Direction: in
+			Attribute: 1
+			Type: Isoc
+			Max Packet Size: 1448
+			Interval: 125us
+
+  alternate number 7
+
+			Endpoint Address: 82
+			Direction: in
+			Attribute: 1
+			Type: Isoc
+			Max Packet Size: 3072
+			Interval: 125us
+*/
+
+/* time to wait when stopping the isoc transfer */
+#define EM28XX_URB_TIMEOUT \
+			msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS)
+
+/* time in msecs to wait for i2c writes to finish */
+#define EM2800_I2C_WRITE_TIMEOUT 20
+
+enum em28xx_mode {
+	EM28XX_SUSPEND,
+	EM28XX_ANALOG_MODE,
+	EM28XX_DIGITAL_MODE,
+};
+
+
+struct em28xx;
+
+struct em28xx_usb_isoc_bufs {
+		/* max packet size of isoc transaction */
+	int				max_pkt_size;
+
+		/* number of packets in each buffer */
+	int				num_packets;
+
+		/* number of allocated urbs */
+	int				num_bufs;
+
+		/* urb for isoc transfers */
+	struct urb			**urb;
+
+		/* transfer buffers for isoc transfer */
+	char				**transfer_buffer;
+};
+
+struct em28xx_usb_isoc_ctl {
+		/* isoc transfer buffers for analog mode */
+	struct em28xx_usb_isoc_bufs	analog_bufs;
+
+		/* isoc transfer buffers for digital mode */
+	struct em28xx_usb_isoc_bufs	digital_bufs;
+
+		/* Stores already requested buffers */
+	struct em28xx_buffer    	*vid_buf;
+	struct em28xx_buffer    	*vbi_buf;
+
+		/* isoc urb callback */
+	int (*isoc_copy) (struct em28xx *dev, struct urb *urb);
+
+};
+
+/* Struct to enumberate video formats */
+struct em28xx_fmt {
+	char  *name;
+	u32   fourcc;          /* v4l2 format id */
+	int   depth;
+	int   reg;
+};
+
+/* buffer for one video frame */
+struct em28xx_buffer {
+	/* common v4l buffer stuff -- must be first */
+	struct videobuf_buffer vb;
+
+	struct list_head frame;
+	int top_field;
+};
+
+struct em28xx_dmaqueue {
+	struct list_head       active;
+
+	wait_queue_head_t          wq;
+
+	/* Counters to control buffer fill */
+	int                        pos;
+};
+
+/* inputs */
+
+#define MAX_EM28XX_INPUT 4
+enum enum28xx_itype {
+	EM28XX_VMUX_COMPOSITE1 = 1,
+	EM28XX_VMUX_COMPOSITE2,
+	EM28XX_VMUX_COMPOSITE3,
+	EM28XX_VMUX_COMPOSITE4,
+	EM28XX_VMUX_SVIDEO,
+	EM28XX_VMUX_TELEVISION,
+	EM28XX_VMUX_CABLE,
+	EM28XX_VMUX_DVB,
+	EM28XX_VMUX_DEBUG,
+	EM28XX_RADIO,
+};
+
+enum em28xx_ac97_mode {
+	EM28XX_NO_AC97 = 0,
+	EM28XX_AC97_EM202,
+	EM28XX_AC97_SIGMATEL,
+	EM28XX_AC97_OTHER,
+};
+
+struct em28xx_audio_mode {
+	enum em28xx_ac97_mode ac97;
+
+	u16 ac97_feat;
+	u32 ac97_vendor_id;
+
+	unsigned int has_audio:1;
+
+	unsigned int i2s_3rates:1;
+	unsigned int i2s_5rates:1;
+};
+
+/* em28xx has two audio inputs: tuner and line in.
+   However, on most devices, an auxiliary AC97 codec device is used.
+   The AC97 device may have several different inputs and outputs,
+   depending on their model. So, it is possible to use AC97 mixer to
+   address more than two different entries.
+ */
+enum em28xx_amux {
+	/* This is the only entry for em28xx tuner input */
+	EM28XX_AMUX_VIDEO,	/* em28xx tuner, AC97 mixer Video */
+
+	EM28XX_AMUX_LINE_IN,	/* AC97 mixer Line In */
+
+	/* Some less-common mixer setups */
+	EM28XX_AMUX_VIDEO2,	/* em28xx Line in, AC97 mixer Video */
+	EM28XX_AMUX_PHONE,
+	EM28XX_AMUX_MIC,
+	EM28XX_AMUX_CD,
+	EM28XX_AMUX_AUX,
+	EM28XX_AMUX_PCM_OUT,
+};
+
+enum em28xx_aout {
+	/* AC97 outputs */
+	EM28XX_AOUT_MASTER = 1 << 0,
+	EM28XX_AOUT_LINE   = 1 << 1,
+	EM28XX_AOUT_MONO   = 1 << 2,
+	EM28XX_AOUT_LFE    = 1 << 3,
+	EM28XX_AOUT_SURR   = 1 << 4,
+
+	/* PCM IN Mixer - used by AC97_RECORD_SELECT register */
+	EM28XX_AOUT_PCM_IN = 1 << 7,
+
+	/* Bits 10-8 are used to indicate the PCM IN record select */
+	EM28XX_AOUT_PCM_MIC_PCM = 0 << 8,
+	EM28XX_AOUT_PCM_CD	= 1 << 8,
+	EM28XX_AOUT_PCM_VIDEO	= 2 << 8,
+	EM28XX_AOUT_PCM_AUX	= 3 << 8,
+	EM28XX_AOUT_PCM_LINE	= 4 << 8,
+	EM28XX_AOUT_PCM_STEREO	= 5 << 8,
+	EM28XX_AOUT_PCM_MONO	= 6 << 8,
+	EM28XX_AOUT_PCM_PHONE	= 7 << 8,
+};
+
+static inline int ac97_return_record_select(int a_out)
+{
+	return (a_out & 0x700) >> 8;
+}
+
+struct em28xx_reg_seq {
+	int reg;
+	unsigned char val, mask;
+	int sleep;
+};
+
+struct em28xx_input {
+	enum enum28xx_itype type;
+	unsigned int vmux;
+	enum em28xx_amux amux;
+	enum em28xx_aout aout;
+	struct em28xx_reg_seq *gpio;
+};
+
+#define INPUT(nr) (&em28xx_boards[dev->model].input[nr])
+
+enum em28xx_decoder {
+	EM28XX_NODECODER = 0,
+	EM28XX_TVP5150,
+	EM28XX_SAA711X,
+};
+
+enum em28xx_sensor {
+	EM28XX_NOSENSOR = 0,
+	EM28XX_MT9V011,
+	EM28XX_MT9M001,
+	EM28XX_MT9M111,
+};
+
+enum em28xx_adecoder {
+	EM28XX_NOADECODER = 0,
+	EM28XX_TVAUDIO,
+};
+
+struct em28xx_board {
+	char *name;
+	int vchannels;
+	int tuner_type;
+	int tuner_addr;
+
+	/* i2c flags */
+	unsigned int tda9887_conf;
+
+	/* GPIO sequences */
+	struct em28xx_reg_seq *dvb_gpio;
+	struct em28xx_reg_seq *suspend_gpio;
+	struct em28xx_reg_seq *tuner_gpio;
+	struct em28xx_reg_seq *mute_gpio;
+
+	unsigned int is_em2800:1;
+	unsigned int has_msp34xx:1;
+	unsigned int mts_firmware:1;
+	unsigned int max_range_640_480:1;
+	unsigned int has_dvb:1;
+	unsigned int has_snapshot_button:1;
+	unsigned int is_webcam:1;
+	unsigned int valid:1;
+	unsigned int has_ir_i2c:1;
+
+	unsigned char xclk, i2c_speed;
+	unsigned char radio_addr;
+	unsigned short tvaudio_addr;
+
+	enum em28xx_decoder decoder;
+	enum em28xx_adecoder adecoder;
+
+	struct em28xx_input       input[MAX_EM28XX_INPUT];
+	struct em28xx_input	  radio;
+	char			  *ir_codes;
+};
+
+struct em28xx_eeprom {
+	u32 id;			/* 0x9567eb1a */
+	u16 vendor_ID;
+	u16 product_ID;
+
+	u16 chip_conf;
+
+	u16 board_conf;
+
+	u16 string1, string2, string3;
+
+	u8 string_idx_table;
+};
+
+/* device states */
+enum em28xx_dev_state {
+	DEV_INITIALIZED = 0x01,
+	DEV_DISCONNECTED = 0x02,
+	DEV_MISCONFIGURED = 0x04,
+};
+
+#define EM28XX_AUDIO_BUFS 5
+#define EM28XX_NUM_AUDIO_PACKETS 64
+#define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */
+#define EM28XX_CAPTURE_STREAM_EN 1
+
+/* em28xx extensions */
+#define EM28XX_AUDIO   0x10
+#define EM28XX_DVB     0x20
+#define EM28XX_RC      0x30
+
+/* em28xx resource types (used for res_get/res_lock etc */
+#define EM28XX_RESOURCE_VIDEO 0x01
+#define EM28XX_RESOURCE_VBI   0x02
+
+struct em28xx_audio {
+	char name[50];
+	char *transfer_buffer[EM28XX_AUDIO_BUFS];
+	struct urb *urb[EM28XX_AUDIO_BUFS];
+	struct usb_device *udev;
+	unsigned int capture_transfer_done;
+	struct snd_pcm_substream   *capture_pcm_substream;
+
+	unsigned int hwptr_done_capture;
+	struct snd_card            *sndcard;
+
+	int users;
+	spinlock_t slock;
+};
+
+struct em28xx;
+
+struct em28xx_fh {
+	struct em28xx *dev;
+	int           radio;
+	unsigned int  resources;
+
+	struct videobuf_queue        vb_vidq;
+	struct videobuf_queue        vb_vbiq;
+
+	enum v4l2_buf_type           type;
+};
+
+/* main device struct */
+struct em28xx {
+	/* generic device properties */
+	char name[30];		/* name (including minor) of the device */
+	int model;		/* index in the device_data struct */
+	int devno;		/* marks the number of this device */
+	enum em28xx_chip_id chip_id;
+
+	int audio_ifnum;
+
+	struct v4l2_device v4l2_dev;
+	struct em28xx_board board;
+
+	/* Webcam specific fields */
+	enum em28xx_sensor em28xx_sensor;
+	int sensor_xres, sensor_yres;
+	int sensor_xtal;
+
+	/* Allows progressive (e. g. non-interlaced) mode */
+	int progressive;
+
+	/* Vinmode/Vinctl used at the driver */
+	int vinmode, vinctl;
+
+	unsigned int has_audio_class:1;
+	unsigned int has_alsa_audio:1;
+	unsigned int is_audio_only:1;
+
+	/* Controls audio streaming */
+	struct work_struct wq_trigger;              /* Trigger to start/stop audio for alsa module */
+	 atomic_t       stream_started;      /* stream should be running if true */
+
+	struct em28xx_fmt *format;
+
+	struct em28xx_IR *ir;
+
+	/* Some older em28xx chips needs a waiting time after writing */
+	unsigned int wait_after_write;
+
+	struct list_head	devlist;
+
+	u32 i2s_speed;		/* I2S speed for audio digital stream */
+
+	struct em28xx_audio_mode audio_mode;
+
+	int tuner_type;		/* type of the tuner */
+	int tuner_addr;		/* tuner address */
+	int tda9887_conf;
+	/* i2c i/o */
+	struct i2c_adapter i2c_adap;
+	struct i2c_client i2c_client;
+	/* video for linux */
+	int users;		/* user count for exclusive use */
+	struct video_device *vdev;	/* video for linux device struct */
+	v4l2_std_id norm;	/* selected tv norm */
+	int ctl_freq;		/* selected frequency */
+	unsigned int ctl_input;	/* selected input */
+	unsigned int ctl_ainput;/* selected audio input */
+	unsigned int ctl_aoutput;/* selected audio output */
+	int mute;
+	int volume;
+	/* frame properties */
+	int width;		/* current frame width */
+	int height;		/* current frame height */
+	unsigned hscale;	/* horizontal scale factor (see datasheet) */
+	unsigned vscale;	/* vertical scale factor (see datasheet) */
+	int interlaced;		/* 1=interlace fileds, 0=just top fileds */
+	unsigned int video_bytesread;	/* Number of bytes read */
+
+	unsigned long hash;	/* eeprom hash - for boards with generic ID */
+	unsigned long i2c_hash;	/* i2c devicelist hash -
+				   for boards with generic ID */
+
+	struct em28xx_audio adev;
+
+	/* states */
+	enum em28xx_dev_state state;
+
+	/* vbi related state tracking */
+	int capture_type;
+	int vbi_read;
+	unsigned char cur_field;
+	unsigned int vbi_width;
+	unsigned int vbi_height; /* lines per field */
+
+	struct work_struct         request_module_wk;
+
+	/* locks */
+	struct mutex lock;
+	struct mutex ctrl_urb_lock;	/* protects urb_buf */
+	/* spinlock_t queue_lock; */
+	struct list_head inqueue, outqueue;
+	struct video_device *vbi_dev;
+	struct video_device *radio_dev;
+
+	/* resources in use */
+	unsigned int resources;
+
+	unsigned char eedata[256];
+
+	/* Isoc control struct */
+	struct em28xx_dmaqueue vidq;
+	struct em28xx_dmaqueue vbiq;
+	struct em28xx_usb_isoc_ctl isoc_ctl;
+	spinlock_t slock;
+
+	/* usb transfer */
+	struct usb_device *udev;	/* the usb device */
+	int alt;		/* alternate */
+	int max_pkt_size;	/* max packet size of isoc transaction */
+	int num_alt;		/* Number of alternative settings */
+	unsigned int *alt_max_pkt_size;	/* array of wMaxPacketSize */
+	int dvb_alt;				/* alternate for DVB */
+	unsigned int dvb_max_pkt_size;		/* wMaxPacketSize for DVB */
+	char urb_buf[URB_MAX_CTRL_SIZE];	/* urb control msg buffer */
+
+	/* helper funcs that call usb_control_msg */
+	int (*em28xx_write_regs) (struct em28xx *dev, u16 reg,
+					char *buf, int len);
+	int (*em28xx_read_reg) (struct em28xx *dev, u16 reg);
+	int (*em28xx_read_reg_req_len) (struct em28xx *dev, u8 req, u16 reg,
+					char *buf, int len);
+	int (*em28xx_write_regs_req) (struct em28xx *dev, u8 req, u16 reg,
+				      char *buf, int len);
+	int (*em28xx_read_reg_req) (struct em28xx *dev, u8 req, u16 reg);
+
+	enum em28xx_mode mode;
+
+	/* register numbers for GPO/GPIO registers */
+	u16 reg_gpo_num, reg_gpio_num;
+
+	/* Caches GPO and GPIO registers */
+	unsigned char	reg_gpo, reg_gpio;
+
+	/* Snapshot button */
+	char snapshot_button_path[30];	/* path of the input dev */
+	struct input_dev *sbutton_input_dev;
+	struct delayed_work sbutton_query_work;
+
+	struct em28xx_dvb *dvb;
+
+	/* I2C keyboard data */
+	struct IR_i2c_init_data init_data;
+};
+
+struct em28xx_ops {
+	struct list_head next;
+	char *name;
+	int id;
+	int (*init)(struct em28xx *);
+	int (*fini)(struct em28xx *);
+};
+
+/* Provided by em28xx-i2c.c */
+void em28xx_do_i2c_scan(struct em28xx *dev);
+int  em28xx_i2c_register(struct em28xx *dev);
+int  em28xx_i2c_unregister(struct em28xx *dev);
+
+/* Provided by em28xx-core.c */
+
+u32 em28xx_request_buffers(struct em28xx *dev, u32 count);
+void em28xx_queue_unusedframes(struct em28xx *dev);
+void em28xx_release_buffers(struct em28xx *dev);
+
+int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg,
+			    char *buf, int len);
+int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg);
+int em28xx_read_reg(struct em28xx *dev, u16 reg);
+int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf,
+			  int len);
+int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len);
+int em28xx_write_reg(struct em28xx *dev, u16 reg, u8 val);
+int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val,
+				 u8 bitmask);
+
+int em28xx_read_ac97(struct em28xx *dev, u8 reg);
+int em28xx_write_ac97(struct em28xx *dev, u8 reg, u16 val);
+
+int em28xx_audio_analog_set(struct em28xx *dev);
+int em28xx_audio_setup(struct em28xx *dev);
+
+int em28xx_colorlevels_set_default(struct em28xx *dev);
+int em28xx_capture_start(struct em28xx *dev, int start);
+int em28xx_vbi_supported(struct em28xx *dev);
+int em28xx_set_outfmt(struct em28xx *dev);
+int em28xx_resolution_set(struct em28xx *dev);
+int em28xx_set_alternate(struct em28xx *dev);
+int em28xx_alloc_isoc(struct em28xx *dev, enum em28xx_mode mode,
+		      int max_packets, int num_bufs, int max_pkt_size);
+int em28xx_init_isoc(struct em28xx *dev, enum em28xx_mode mode,
+		     int max_packets, int num_bufs, int max_pkt_size,
+		     int (*isoc_copy) (struct em28xx *dev, struct urb *urb));
+void em28xx_uninit_isoc(struct em28xx *dev, enum em28xx_mode mode);
+void em28xx_stop_urbs(struct em28xx *dev);
+int em28xx_isoc_dvb_max_packetsize(struct em28xx *dev);
+int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode);
+int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio);
+void em28xx_wake_i2c(struct em28xx *dev);
+int em28xx_register_extension(struct em28xx_ops *dev);
+void em28xx_unregister_extension(struct em28xx_ops *dev);
+void em28xx_init_extension(struct em28xx *dev);
+void em28xx_close_extension(struct em28xx *dev);
+
+/* Provided by em28xx-video.c */
+int em28xx_register_analog_devices(struct em28xx *dev);
+void em28xx_release_analog_resources(struct em28xx *dev);
+
+/* Provided by em28xx-cards.c */
+extern int em2800_variant_detect(struct usb_device *udev, int model);
+extern struct em28xx_board em28xx_boards[];
+extern struct usb_device_id em28xx_id_table[];
+extern const unsigned int em28xx_bcount;
+int em28xx_tuner_callback(void *ptr, int component, int command, int arg);
+void em28xx_release_resources(struct em28xx *dev);
+
+/* Provided by em28xx-vbi.c */
+extern struct videobuf_queue_ops em28xx_vbi_qops;
+
+/* printk macros */
+
+#define em28xx_err(fmt, arg...) do {\
+	printk(KERN_ERR fmt , ##arg); } while (0)
+
+#define em28xx_errdev(fmt, arg...) do {\
+	printk(KERN_ERR "%s: "fmt,\
+			dev->name , ##arg); } while (0)
+
+#define em28xx_info(fmt, arg...) do {\
+	printk(KERN_INFO "%s: "fmt,\
+			dev->name , ##arg); } while (0)
+#define em28xx_warn(fmt, arg...) do {\
+	printk(KERN_WARNING "%s: "fmt,\
+			dev->name , ##arg); } while (0)
+
+static inline int em28xx_compression_disable(struct em28xx *dev)
+{
+	/* side effect of disabling scaler and mixer */
+	return em28xx_write_reg(dev, EM28XX_R26_COMPR, 0x00);
+}
+
+static inline int em28xx_contrast_get(struct em28xx *dev)
+{
+	return em28xx_read_reg(dev, EM28XX_R20_YGAIN) & 0x1f;
+}
+
+static inline int em28xx_brightness_get(struct em28xx *dev)
+{
+	return em28xx_read_reg(dev, EM28XX_R21_YOFFSET);
+}
+
+static inline int em28xx_saturation_get(struct em28xx *dev)
+{
+	return em28xx_read_reg(dev, EM28XX_R22_UVGAIN) & 0x1f;
+}
+
+static inline int em28xx_u_balance_get(struct em28xx *dev)
+{
+	return em28xx_read_reg(dev, EM28XX_R23_UOFFSET);
+}
+
+static inline int em28xx_v_balance_get(struct em28xx *dev)
+{
+	return em28xx_read_reg(dev, EM28XX_R24_VOFFSET);
+}
+
+static inline int em28xx_gamma_get(struct em28xx *dev)
+{
+	return em28xx_read_reg(dev, EM28XX_R14_GAMMA) & 0x3f;
+}
+
+static inline int em28xx_contrast_set(struct em28xx *dev, s32 val)
+{
+	u8 tmp = (u8) val;
+	return em28xx_write_regs(dev, EM28XX_R20_YGAIN, &tmp, 1);
+}
+
+static inline int em28xx_brightness_set(struct em28xx *dev, s32 val)
+{
+	u8 tmp = (u8) val;
+	return em28xx_write_regs(dev, EM28XX_R21_YOFFSET, &tmp, 1);
+}
+
+static inline int em28xx_saturation_set(struct em28xx *dev, s32 val)
+{
+	u8 tmp = (u8) val;
+	return em28xx_write_regs(dev, EM28XX_R22_UVGAIN, &tmp, 1);
+}
+
+static inline int em28xx_u_balance_set(struct em28xx *dev, s32 val)
+{
+	u8 tmp = (u8) val;
+	return em28xx_write_regs(dev, EM28XX_R23_UOFFSET, &tmp, 1);
+}
+
+static inline int em28xx_v_balance_set(struct em28xx *dev, s32 val)
+{
+	u8 tmp = (u8) val;
+	return em28xx_write_regs(dev, EM28XX_R24_VOFFSET, &tmp, 1);
+}
+
+static inline int em28xx_gamma_set(struct em28xx *dev, s32 val)
+{
+	u8 tmp = (u8) val;
+	return em28xx_write_regs(dev, EM28XX_R14_GAMMA, &tmp, 1);
+}
+
+/*FIXME: maxw should be dependent of alt mode */
+static inline unsigned int norm_maxw(struct em28xx *dev)
+{
+	if (dev->board.is_webcam)
+		return dev->sensor_xres;
+
+	if (dev->board.max_range_640_480)
+		return 640;
+
+	return 720;
+}
+
+static inline unsigned int norm_maxh(struct em28xx *dev)
+{
+	if (dev->board.is_webcam)
+		return dev->sensor_yres;
+
+	if (dev->board.max_range_640_480)
+		return 480;
+
+	return (dev->norm & V4L2_STD_625_50) ? 576 : 480;
+}
+#endif