drivers/media/usb/go7007/go7007-priv.h - kernel/bruno - Git at Google

 /*
  * Copyright (C) 2005-2006 Micronas USA Inc.
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License (Version 2) as
  * published by the Free Software Foundation.
  *
  * 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.
  */

 /*
  * This is the private include file for the go7007 driver.  It should not
  * be included by anybody but the driver itself, and especially not by
  * user-space applications.
  */

 #include <media/v4l2-device.h>
 #include <media/v4l2-ctrls.h>
 #include <media/v4l2-fh.h>
 #include <media/videobuf2-v4l2.h>

 struct go7007;

 /* IDs to activate board-specific support code */
 #define GO7007_BOARDID_MATRIX_II	0
 #define GO7007_BOARDID_MATRIX_RELOAD	1
 #define GO7007_BOARDID_STAR_TREK	2
 #define GO7007_BOARDID_PCI_VOYAGER	3
 #define GO7007_BOARDID_XMEN		4
 #define GO7007_BOARDID_XMEN_II		5
 #define GO7007_BOARDID_XMEN_III		6
 #define GO7007_BOARDID_MATRIX_REV	7
 #define GO7007_BOARDID_PX_M402U		8
 #define GO7007_BOARDID_PX_TV402U	9
 #define GO7007_BOARDID_LIFEVIEW_LR192	10 /* TV Walker Ultra */
 #define GO7007_BOARDID_ENDURA		11
 #define GO7007_BOARDID_ADLINK_MPG24	12
 #define GO7007_BOARDID_SENSORAY_2250	13 /* Sensoray 2250/2251 */
 #define GO7007_BOARDID_ADS_USBAV_709    14

 /* Various characteristics of each board */
 #define GO7007_BOARD_HAS_AUDIO		(1<<0)
 #define GO7007_BOARD_USE_ONBOARD_I2C	(1<<1)
 #define GO7007_BOARD_HAS_TUNER		(1<<2)

 /* Characteristics of sensor devices */
 #define GO7007_SENSOR_VALID_POLAR	(1<<0)
 #define GO7007_SENSOR_HREF_POLAR	(1<<1)
 #define GO7007_SENSOR_VREF_POLAR	(1<<2)
 #define GO7007_SENSOR_FIELD_ID_POLAR	(1<<3)
 #define GO7007_SENSOR_BIT_WIDTH		(1<<4)
 #define GO7007_SENSOR_VALID_ENABLE	(1<<5)
 #define GO7007_SENSOR_656		(1<<6)
 #define GO7007_SENSOR_CONFIG_MASK	0x7f
 #define GO7007_SENSOR_TV		(1<<7)
 #define GO7007_SENSOR_VBI		(1<<8)
 #define GO7007_SENSOR_SCALING		(1<<9)
 #define GO7007_SENSOR_SAA7115		(1<<10)

 /* Characteristics of audio sensor devices */
 #define GO7007_AUDIO_I2S_MODE_1		(1)
 #define GO7007_AUDIO_I2S_MODE_2		(2)
 #define GO7007_AUDIO_I2S_MODE_3		(3)
 #define GO7007_AUDIO_BCLK_POLAR		(1<<2)
 #define GO7007_AUDIO_WORD_14		(14<<4)
 #define GO7007_AUDIO_WORD_16		(16<<4)
 #define GO7007_AUDIO_ONE_CHANNEL	(1<<11)
 #define GO7007_AUDIO_I2S_MASTER		(1<<16)
 #define GO7007_AUDIO_OKI_MODE		(1<<17)

 #define GO7007_CID_CUSTOM_BASE		(V4L2_CID_DETECT_CLASS_BASE + 0x1000)
 #define V4L2_CID_PIXEL_THRESHOLD0	(GO7007_CID_CUSTOM_BASE+1)
 #define V4L2_CID_MOTION_THRESHOLD0	(GO7007_CID_CUSTOM_BASE+2)
 #define V4L2_CID_MB_THRESHOLD0		(GO7007_CID_CUSTOM_BASE+3)
 #define V4L2_CID_PIXEL_THRESHOLD1	(GO7007_CID_CUSTOM_BASE+4)
 #define V4L2_CID_MOTION_THRESHOLD1	(GO7007_CID_CUSTOM_BASE+5)
 #define V4L2_CID_MB_THRESHOLD1		(GO7007_CID_CUSTOM_BASE+6)
 #define V4L2_CID_PIXEL_THRESHOLD2	(GO7007_CID_CUSTOM_BASE+7)
 #define V4L2_CID_MOTION_THRESHOLD2	(GO7007_CID_CUSTOM_BASE+8)
 #define V4L2_CID_MB_THRESHOLD2		(GO7007_CID_CUSTOM_BASE+9)
 #define V4L2_CID_PIXEL_THRESHOLD3	(GO7007_CID_CUSTOM_BASE+10)
 #define V4L2_CID_MOTION_THRESHOLD3	(GO7007_CID_CUSTOM_BASE+11)
 #define V4L2_CID_MB_THRESHOLD3		(GO7007_CID_CUSTOM_BASE+12)

 struct go7007_board_info {
 	unsigned int flags;
 	int hpi_buffer_cap;
 	unsigned int sensor_flags;
 	int sensor_width;
 	int sensor_height;
 	int sensor_framerate;
 	int sensor_h_offset;
 	int sensor_v_offset;
 	unsigned int audio_flags;
 	int audio_rate;
 	int audio_bclk_div;
 	int audio_main_div;
 	int num_i2c_devs;
 	struct go_i2c {
 		const char *type;
 		unsigned int is_video:1;
 		unsigned int is_audio:1;
 		int addr;
 		u32 flags;
 	} i2c_devs[5];
 	int num_inputs;
 	struct {
 		int video_input;
 		int audio_index;
 		char *name;
 	} inputs[4];
 	int video_config;
 	int num_aud_inputs;
 	struct {
 		int audio_input;
 		char *name;
 	} aud_inputs[3];
 };

 struct go7007_hpi_ops {
 	int (*interface_reset)(struct go7007 *go);
 	int (*write_interrupt)(struct go7007 *go, int addr, int data);
 	int (*read_interrupt)(struct go7007 *go);
 	int (*stream_start)(struct go7007 *go);
 	int (*stream_stop)(struct go7007 *go);
 	int (*send_firmware)(struct go7007 *go, u8 *data, int len);
 	int (*send_command)(struct go7007 *go, unsigned int cmd, void *arg);
 	void (*release)(struct go7007 *go);
 };

 /* The video buffer size must be a multiple of PAGE_SIZE */
 #define	GO7007_BUF_PAGES	(128 * 1024 / PAGE_SIZE)
 #define	GO7007_BUF_SIZE		(GO7007_BUF_PAGES << PAGE_SHIFT)

 struct go7007_buffer {
 	struct vb2_v4l2_buffer vb;
 	struct list_head list;
 	unsigned int frame_offset;
 	u32 modet_active;
 };

 #define GO7007_RATIO_1_1	0
 #define GO7007_RATIO_4_3	1
 #define GO7007_RATIO_16_9	2

 enum go7007_parser_state {
 	STATE_DATA,
 	STATE_00,
 	STATE_00_00,
 	STATE_00_00_01,
 	STATE_FF,
 	STATE_VBI_LEN_A,
 	STATE_VBI_LEN_B,
 	STATE_MODET_MAP,
 	STATE_UNPARSED,
 };

 struct go7007 {
 	struct device *dev;
 	u8 bus_info[32];
 	const struct go7007_board_info *board_info;
 	unsigned int board_id;
 	int tuner_type;
 	int channel_number; /* for multi-channel boards like Adlink PCI-MPG24 */
 	char name[64];
 	struct video_device vdev;
 	void *boot_fw;
 	unsigned boot_fw_len;
 	struct v4l2_device v4l2_dev;
 	struct v4l2_ctrl_handler hdl;
 	struct v4l2_ctrl *mpeg_video_encoding;
 	struct v4l2_ctrl *mpeg_video_gop_size;
 	struct v4l2_ctrl *mpeg_video_gop_closure;
 	struct v4l2_ctrl *mpeg_video_bitrate;
 	struct v4l2_ctrl *mpeg_video_aspect_ratio;
 	struct v4l2_ctrl *mpeg_video_b_frames;
 	struct v4l2_ctrl *mpeg_video_rep_seqheader;
 	struct v4l2_ctrl *modet_mode;
 	enum { STATUS_INIT, STATUS_ONLINE, STATUS_SHUTDOWN } status;
 	spinlock_t spinlock;
 	struct mutex hw_lock;
 	struct mutex serialize_lock;
 	int audio_enabled;
 	struct v4l2_subdev *sd_video;
 	struct v4l2_subdev *sd_audio;
 	u8 usb_buf[16];

 	/* Video input */
 	int input;
 	int aud_input;
 	enum { GO7007_STD_NTSC, GO7007_STD_PAL, GO7007_STD_OTHER } standard;
 	v4l2_std_id std;
 	int sensor_framerate;
 	int width;
 	int height;
 	int encoder_h_offset;
 	int encoder_v_offset;
 	unsigned int encoder_h_halve:1;
 	unsigned int encoder_v_halve:1;
 	unsigned int encoder_subsample:1;

 	/* Encoder config */
 	u32 format;
 	int bitrate;
 	int fps_scale;
 	int pali;
 	int aspect_ratio;
 	int gop_size;
 	unsigned int ipb:1;
 	unsigned int closed_gop:1;
 	unsigned int repeat_seqhead:1;
 	unsigned int seq_header_enable:1;
 	unsigned int gop_header_enable:1;
 	unsigned int dvd_mode:1;
 	unsigned int interlace_coding:1;

 	/* Motion detection */
 	unsigned int modet_enable:1;
 	struct {
 		unsigned int enable:1;
 		int pixel_threshold;
 		int motion_threshold;
 		int mb_threshold;
 	} modet[4];
 	unsigned char modet_map[1624];
 	unsigned char active_map[216];
 	u32 modet_event_status;

 	/* Video streaming */
 	struct mutex queue_lock;
 	struct vb2_queue vidq;
 	enum go7007_parser_state state;
 	int parse_length;
 	u16 modet_word;
 	int seen_frame;
 	u32 next_seq;
 	struct list_head vidq_active;
 	wait_queue_head_t frame_waitq;
 	struct go7007_buffer *active_buf;

 	/* Audio streaming */
 	void (*audio_deliver)(struct go7007 *go, u8 *buf, int length);
 	void *snd_context;

 	/* I2C */
 	int i2c_adapter_online;
 	struct i2c_adapter i2c_adapter;

 	/* HPI driver */
 	struct go7007_hpi_ops *hpi_ops;
 	void *hpi_context;
 	int interrupt_available;
 	wait_queue_head_t interrupt_waitq;
 	unsigned short interrupt_value;
 	unsigned short interrupt_data;
 };

 static inline struct go7007 *to_go7007(struct v4l2_device *v4l2_dev)
 {
 	return container_of(v4l2_dev, struct go7007, v4l2_dev);
 }

 /* All of these must be called with the hpi_lock mutex held! */
 #define go7007_interface_reset(go) \
 			((go)->hpi_ops->interface_reset(go))
 #define	go7007_write_interrupt(go, x, y) \
 			((go)->hpi_ops->write_interrupt)((go), (x), (y))
 #define go7007_stream_start(go) \
 			((go)->hpi_ops->stream_start(go))
 #define go7007_stream_stop(go) \
 			((go)->hpi_ops->stream_stop(go))
 #define	go7007_send_firmware(go, x, y) \
 			((go)->hpi_ops->send_firmware)((go), (x), (y))
 #define go7007_write_addr(go, x, y) \
 			((go)->hpi_ops->write_interrupt)((go), (x)|0x8000, (y))

 /* go7007-driver.c */
 int go7007_read_addr(struct go7007 *go, u16 addr, u16 *data);
 int go7007_read_interrupt(struct go7007 *go, u16 *value, u16 *data);
 int go7007_boot_encoder(struct go7007 *go, int init_i2c);
 int go7007_reset_encoder(struct go7007 *go);
 int go7007_register_encoder(struct go7007 *go, unsigned num_i2c_devs);
 int go7007_start_encoder(struct go7007 *go);
 void go7007_parse_video_stream(struct go7007 *go, u8 *buf, int length);
 struct go7007 *go7007_alloc(const struct go7007_board_info *board,
 					struct device *dev);
 void go7007_update_board(struct go7007 *go);

 /* go7007-fw.c */
 int go7007_construct_fw_image(struct go7007 *go, u8 **fw, int *fwlen);

 /* go7007-i2c.c */
 int go7007_i2c_init(struct go7007 *go);
 int go7007_i2c_remove(struct go7007 *go);

 /* go7007-v4l2.c */
 int go7007_v4l2_init(struct go7007 *go);
 int go7007_v4l2_ctrl_init(struct go7007 *go);
 void go7007_v4l2_remove(struct go7007 *go);

 /* snd-go7007.c */
 int go7007_snd_init(struct go7007 *go);
 int go7007_snd_remove(struct go7007 *go);
	/*
	* Copyright (C) 2005-2006 Micronas USA Inc.
	*
	* This program is free software; you can redistribute it and/or modify
	* it under the terms of the GNU General Public License (Version 2) as
	* published by the Free Software Foundation.
	*
	* 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.
	*/

	/*
	* This is the private include file for the go7007 driver. It should not
	* be included by anybody but the driver itself, and especially not by
	* user-space applications.
	*/

	#include <media/v4l2-device.h>
	#include <media/v4l2-ctrls.h>
	#include <media/v4l2-fh.h>
	#include <media/videobuf2-v4l2.h>

	struct go7007;

	/* IDs to activate board-specific support code */
	#define GO7007_BOARDID_MATRIX_II 0
	#define GO7007_BOARDID_MATRIX_RELOAD 1
	#define GO7007_BOARDID_STAR_TREK 2
	#define GO7007_BOARDID_PCI_VOYAGER 3
	#define GO7007_BOARDID_XMEN 4
	#define GO7007_BOARDID_XMEN_II 5
	#define GO7007_BOARDID_XMEN_III 6
	#define GO7007_BOARDID_MATRIX_REV 7
	#define GO7007_BOARDID_PX_M402U 8
	#define GO7007_BOARDID_PX_TV402U 9
	#define GO7007_BOARDID_LIFEVIEW_LR192 10 /* TV Walker Ultra */
	#define GO7007_BOARDID_ENDURA 11
	#define GO7007_BOARDID_ADLINK_MPG24 12
	#define GO7007_BOARDID_SENSORAY_2250 13 /* Sensoray 2250/2251 */
	#define GO7007_BOARDID_ADS_USBAV_709 14

	/* Various characteristics of each board */
	#define GO7007_BOARD_HAS_AUDIO (1<<0)
	#define GO7007_BOARD_USE_ONBOARD_I2C (1<<1)
	#define GO7007_BOARD_HAS_TUNER (1<<2)

	/* Characteristics of sensor devices */
	#define GO7007_SENSOR_VALID_POLAR (1<<0)
	#define GO7007_SENSOR_HREF_POLAR (1<<1)
	#define GO7007_SENSOR_VREF_POLAR (1<<2)
	#define GO7007_SENSOR_FIELD_ID_POLAR (1<<3)
	#define GO7007_SENSOR_BIT_WIDTH (1<<4)
	#define GO7007_SENSOR_VALID_ENABLE (1<<5)
	#define GO7007_SENSOR_656 (1<<6)
	#define GO7007_SENSOR_CONFIG_MASK 0x7f
	#define GO7007_SENSOR_TV (1<<7)
	#define GO7007_SENSOR_VBI (1<<8)
	#define GO7007_SENSOR_SCALING (1<<9)
	#define GO7007_SENSOR_SAA7115 (1<<10)

	/* Characteristics of audio sensor devices */
	#define GO7007_AUDIO_I2S_MODE_1 (1)
	#define GO7007_AUDIO_I2S_MODE_2 (2)
	#define GO7007_AUDIO_I2S_MODE_3 (3)
	#define GO7007_AUDIO_BCLK_POLAR (1<<2)
	#define GO7007_AUDIO_WORD_14 (14<<4)
	#define GO7007_AUDIO_WORD_16 (16<<4)
	#define GO7007_AUDIO_ONE_CHANNEL (1<<11)
	#define GO7007_AUDIO_I2S_MASTER (1<<16)
	#define GO7007_AUDIO_OKI_MODE (1<<17)

	#define GO7007_CID_CUSTOM_BASE (V4L2_CID_DETECT_CLASS_BASE + 0x1000)
	#define V4L2_CID_PIXEL_THRESHOLD0 (GO7007_CID_CUSTOM_BASE+1)
	#define V4L2_CID_MOTION_THRESHOLD0 (GO7007_CID_CUSTOM_BASE+2)
	#define V4L2_CID_MB_THRESHOLD0 (GO7007_CID_CUSTOM_BASE+3)
	#define V4L2_CID_PIXEL_THRESHOLD1 (GO7007_CID_CUSTOM_BASE+4)
	#define V4L2_CID_MOTION_THRESHOLD1 (GO7007_CID_CUSTOM_BASE+5)
	#define V4L2_CID_MB_THRESHOLD1 (GO7007_CID_CUSTOM_BASE+6)
	#define V4L2_CID_PIXEL_THRESHOLD2 (GO7007_CID_CUSTOM_BASE+7)
	#define V4L2_CID_MOTION_THRESHOLD2 (GO7007_CID_CUSTOM_BASE+8)
	#define V4L2_CID_MB_THRESHOLD2 (GO7007_CID_CUSTOM_BASE+9)
	#define V4L2_CID_PIXEL_THRESHOLD3 (GO7007_CID_CUSTOM_BASE+10)
	#define V4L2_CID_MOTION_THRESHOLD3 (GO7007_CID_CUSTOM_BASE+11)
	#define V4L2_CID_MB_THRESHOLD3 (GO7007_CID_CUSTOM_BASE+12)

	struct go7007_board_info {
	unsigned int flags;
	int hpi_buffer_cap;
	unsigned int sensor_flags;
	int sensor_width;
	int sensor_height;
	int sensor_framerate;
	int sensor_h_offset;
	int sensor_v_offset;
	unsigned int audio_flags;
	int audio_rate;
	int audio_bclk_div;
	int audio_main_div;
	int num_i2c_devs;
	struct go_i2c {
	const char *type;
	unsigned int is_video:1;
	unsigned int is_audio:1;
	int addr;
	u32 flags;
	} i2c_devs[5];
	int num_inputs;
	struct {
	int video_input;
	int audio_index;
	char *name;
	} inputs[4];
	int video_config;
	int num_aud_inputs;
	struct {
	int audio_input;
	char *name;
	} aud_inputs[3];
	};

	struct go7007_hpi_ops {
	int (interface_reset)(struct go7007 go);
	int (write_interrupt)(struct go7007 go, int addr, int data);
	int (read_interrupt)(struct go7007 go);
	int (stream_start)(struct go7007 go);
	int (stream_stop)(struct go7007 go);
	int (send_firmware)(struct go7007 go, u8 *data, int len);
	int (send_command)(struct go7007 go, unsigned int cmd, void *arg);
	void (release)(struct go7007 go);
	};

	/* The video buffer size must be a multiple of PAGE_SIZE */
	#define GO7007_BUF_PAGES (128 * 1024 / PAGE_SIZE)
	#define GO7007_BUF_SIZE (GO7007_BUF_PAGES << PAGE_SHIFT)

	struct go7007_buffer {
	struct vb2_v4l2_buffer vb;
	struct list_head list;
	unsigned int frame_offset;
	u32 modet_active;
	};

	#define GO7007_RATIO_1_1 0
	#define GO7007_RATIO_4_3 1
	#define GO7007_RATIO_16_9 2

	enum go7007_parser_state {
	STATE_DATA,
	STATE_00,
	STATE_00_00,
	STATE_00_00_01,
	STATE_FF,
	STATE_VBI_LEN_A,
	STATE_VBI_LEN_B,
	STATE_MODET_MAP,
	STATE_UNPARSED,
	};

	struct go7007 {
	struct device *dev;
	u8 bus_info[32];
	const struct go7007_board_info *board_info;
	unsigned int board_id;
	int tuner_type;
	int channel_number; /* for multi-channel boards like Adlink PCI-MPG24 */
	char name[64];
	struct video_device vdev;
	void *boot_fw;
	unsigned boot_fw_len;
	struct v4l2_device v4l2_dev;
	struct v4l2_ctrl_handler hdl;
	struct v4l2_ctrl *mpeg_video_encoding;
	struct v4l2_ctrl *mpeg_video_gop_size;
	struct v4l2_ctrl *mpeg_video_gop_closure;
	struct v4l2_ctrl *mpeg_video_bitrate;
	struct v4l2_ctrl *mpeg_video_aspect_ratio;
	struct v4l2_ctrl *mpeg_video_b_frames;
	struct v4l2_ctrl *mpeg_video_rep_seqheader;
	struct v4l2_ctrl *modet_mode;
	enum { STATUS_INIT, STATUS_ONLINE, STATUS_SHUTDOWN } status;
	spinlock_t spinlock;
	struct mutex hw_lock;
	struct mutex serialize_lock;
	int audio_enabled;
	struct v4l2_subdev *sd_video;
	struct v4l2_subdev *sd_audio;
	u8 usb_buf[16];

	/* Video input */
	int input;
	int aud_input;
	enum { GO7007_STD_NTSC, GO7007_STD_PAL, GO7007_STD_OTHER } standard;
	v4l2_std_id std;
	int sensor_framerate;
	int width;
	int height;
	int encoder_h_offset;
	int encoder_v_offset;
	unsigned int encoder_h_halve:1;
	unsigned int encoder_v_halve:1;
	unsigned int encoder_subsample:1;

	/* Encoder config */
	u32 format;
	int bitrate;
	int fps_scale;
	int pali;
	int aspect_ratio;
	int gop_size;
	unsigned int ipb:1;
	unsigned int closed_gop:1;
	unsigned int repeat_seqhead:1;
	unsigned int seq_header_enable:1;
	unsigned int gop_header_enable:1;
	unsigned int dvd_mode:1;
	unsigned int interlace_coding:1;

	/* Motion detection */
	unsigned int modet_enable:1;
	struct {
	unsigned int enable:1;
	int pixel_threshold;
	int motion_threshold;
	int mb_threshold;
	} modet[4];
	unsigned char modet_map[1624];
	unsigned char active_map[216];
	u32 modet_event_status;

	/* Video streaming */
	struct mutex queue_lock;
	struct vb2_queue vidq;
	enum go7007_parser_state state;
	int parse_length;
	u16 modet_word;
	int seen_frame;
	u32 next_seq;
	struct list_head vidq_active;
	wait_queue_head_t frame_waitq;
	struct go7007_buffer *active_buf;

	/* Audio streaming */
	void (audio_deliver)(struct go7007 go, u8 *buf, int length);
	void *snd_context;

	/* I2C */
	int i2c_adapter_online;
	struct i2c_adapter i2c_adapter;

	/* HPI driver */
	struct go7007_hpi_ops *hpi_ops;
	void *hpi_context;
	int interrupt_available;
	wait_queue_head_t interrupt_waitq;
	unsigned short interrupt_value;
	unsigned short interrupt_data;
	};

	static inline struct go7007 to_go7007(struct v4l2_device v4l2_dev)
	{
	return container_of(v4l2_dev, struct go7007, v4l2_dev);
	}

	/* All of these must be called with the hpi_lock mutex held! */
	#define go7007_interface_reset(go) \
	((go)->hpi_ops->interface_reset(go))
	#define go7007_write_interrupt(go, x, y) \
	((go)->hpi_ops->write_interrupt)((go), (x), (y))
	#define go7007_stream_start(go) \
	((go)->hpi_ops->stream_start(go))
	#define go7007_stream_stop(go) \
	((go)->hpi_ops->stream_stop(go))
	#define go7007_send_firmware(go, x, y) \
	((go)->hpi_ops->send_firmware)((go), (x), (y))
	#define go7007_write_addr(go, x, y) \
	((go)->hpi_ops->write_interrupt)((go), (x)\|0x8000, (y))

	/* go7007-driver.c */
	int go7007_read_addr(struct go7007 go, u16 addr, u16 data);
	int go7007_read_interrupt(struct go7007 go, u16 value, u16 *data);
	int go7007_boot_encoder(struct go7007 *go, int init_i2c);
	int go7007_reset_encoder(struct go7007 *go);
	int go7007_register_encoder(struct go7007 *go, unsigned num_i2c_devs);
	int go7007_start_encoder(struct go7007 *go);
	void go7007_parse_video_stream(struct go7007 go, u8 buf, int length);
	struct go7007 go7007_alloc(const struct go7007_board_info board,
	struct device *dev);
	void go7007_update_board(struct go7007 *go);

	/* go7007-fw.c */
	int go7007_construct_fw_image(struct go7007 go, u8 fw, int fwlen);

	/* go7007-i2c.c */
	int go7007_i2c_init(struct go7007 *go);
	int go7007_i2c_remove(struct go7007 *go);

	/* go7007-v4l2.c */
	int go7007_v4l2_init(struct go7007 *go);
	int go7007_v4l2_ctrl_init(struct go7007 *go);
	void go7007_v4l2_remove(struct go7007 *go);

	/* snd-go7007.c */
	int go7007_snd_init(struct go7007 *go);
	int go7007_snd_remove(struct go7007 *go);