text: /*
   *
   * v4l2 device driver for cx2388x based TV cards
   *
   * (c) 2003,04 Gerd Knorr <kraxel@bytesex.org> [SUSE Labs]
   *
   *  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/pci.h>
  #include <linux/i2c.h>
  #include <linux/i2c-algo-bit.h>
  #include <linux/videodev2.h>
  #include <linux/kdev_t.h>
  
  #include <media/v4l2-device.h>
  #include <media/v4l2-fh.h>
  #include <media/tuner.h>
  #include <media/tveeprom.h>
  #include <media/videobuf-dma-sg.h>
  #include <media/v4l2-chip-ident.h>
  #include <media/cx2341x.h>
  #include <media/videobuf-dvb.h>
  #include <media/ir-kbd-i2c.h>
  #include <media/wm8775.h>
  
  #include "btcx-risc.h"
  #include "cx88-reg.h"
  #include "tuner-xc2028.h"
  
  #include <linux/mutex.h>
  
  #define CX88_VERSION "0.0.9"
  
  #define UNSET (-1U)
  
  #define CX88_MAXBOARDS 8
  
  /* Max number of inputs by card */
  #define MAX_CX88_INPUT 8
  
  /* ----------------------------------------------------------- */
  /* defines and enums                                           */
  
  /* Currently unsupported by the driver: PAL/H, NTSC/Kr, SECAM/LC */
  #define CX88_NORMS (V4L2_STD_ALL 		\
  		    & ~V4L2_STD_PAL_H		\
  		    & ~V4L2_STD_NTSC_M_KR	\
  		    & ~V4L2_STD_SECAM_LC)
  
  #define FORMAT_FLAGS_PACKED       0x01
  #define FORMAT_FLAGS_PLANAR       0x02
  
  #define VBI_LINE_COUNT              17
  #define VBI_LINE_LENGTH           2048
  
  #define AUD_RDS_LINES		     4
  
  /* need "shadow" registers for some write-only ones ... */
  #define SHADOW_AUD_VOL_CTL           1
  #define SHADOW_AUD_BAL_CTL           2
  #define SHADOW_MAX                   3
  
  /* FM Radio deemphasis type */
  enum cx88_deemph_type {
  	FM_NO_DEEMPH = 0,
  	FM_DEEMPH_50,
  	FM_DEEMPH_75
  };
  
  enum cx88_board_type {
  	CX88_BOARD_NONE = 0,
  	CX88_MPEG_DVB,
  	CX88_MPEG_BLACKBIRD
  };
  
  enum cx8802_board_access {
  	CX8802_DRVCTL_SHARED    = 1,
  	CX8802_DRVCTL_EXCLUSIVE = 2,
  };
  
  /* ----------------------------------------------------------- */
  /* tv norms                                                    */
  
  static unsigned int inline norm_maxw(v4l2_std_id norm)
  {
  	return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 720 : 768;
  }
  
  
  static unsigned int inline norm_maxh(v4l2_std_id norm)
  {
  	return (norm & V4L2_STD_625_50) ? 576 : 480;
  }
  
  /* ----------------------------------------------------------- */
  /* static data                                                 */
  
  struct cx8800_fmt {
  	const char  *name;
  	u32   fourcc;          /* v4l2 format id */
  	int   depth;
  	int   flags;
  	u32   cxformat;
  };
  
  /* ----------------------------------------------------------- */
  /* SRAM memory management data (see cx88-core.c)               */
  
  #define SRAM_CH21 0   /* video */
  #define SRAM_CH22 1
  #define SRAM_CH23 2
  #define SRAM_CH24 3   /* vbi   */
  #define SRAM_CH25 4   /* audio */
  #define SRAM_CH26 5
  #define SRAM_CH28 6   /* mpeg */
  #define SRAM_CH27 7   /* audio rds */
  /* more */
  
  struct sram_channel {
  	const char *name;
  	u32  cmds_start;
  	u32  ctrl_start;
  	u32  cdt;
  	u32  fifo_start;
  	u32  fifo_size;
  	u32  ptr1_reg;
  	u32  ptr2_reg;
  	u32  cnt1_reg;
  	u32  cnt2_reg;
  };
  extern const struct sram_channel cx88_sram_channels[];
  
  /* ----------------------------------------------------------- */
  /* card configuration                                          */
  
  #define CX88_BOARD_NOAUTO               UNSET
  #define CX88_BOARD_UNKNOWN                  0
  #define CX88_BOARD_HAUPPAUGE                1
  #define CX88_BOARD_GDI                      2
  #define CX88_BOARD_PIXELVIEW                3
  #define CX88_BOARD_ATI_WONDER_PRO           4
  #define CX88_BOARD_WINFAST2000XP_EXPERT     5
  #define CX88_BOARD_AVERTV_STUDIO_303        6
  #define CX88_BOARD_MSI_TVANYWHERE_MASTER    7
  #define CX88_BOARD_WINFAST_DV2000           8
  #define CX88_BOARD_LEADTEK_PVR2000          9
  #define CX88_BOARD_IODATA_GVVCP3PCI        10
  #define CX88_BOARD_PROLINK_PLAYTVPVR       11
  #define CX88_BOARD_ASUS_PVR_416            12
  #define CX88_BOARD_MSI_TVANYWHERE          13
  #define CX88_BOARD_KWORLD_DVB_T            14
  #define CX88_BOARD_DVICO_FUSIONHDTV_DVB_T1 15
  #define CX88_BOARD_KWORLD_LTV883           16
  #define CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_Q  17
  #define CX88_BOARD_HAUPPAUGE_DVB_T1        18
  #define CX88_BOARD_CONEXANT_DVB_T1         19
  #define CX88_BOARD_PROVIDEO_PV259          20
  #define CX88_BOARD_DVICO_FUSIONHDTV_DVB_T_PLUS 21
  #define CX88_BOARD_PCHDTV_HD3000           22
  #define CX88_BOARD_DNTV_LIVE_DVB_T         23
  #define CX88_BOARD_HAUPPAUGE_ROSLYN        24
  #define CX88_BOARD_DIGITALLOGIC_MEC        25
  #define CX88_BOARD_IODATA_GVBCTV7E         26
  #define CX88_BOARD_PIXELVIEW_PLAYTV_ULTRA_PRO 27
  #define CX88_BOARD_DVICO_FUSIONHDTV_3_GOLD_T  28
  #define CX88_BOARD_ADSTECH_DVB_T_PCI          29
  #define CX88_BOARD_TERRATEC_CINERGY_1400_DVB_T1  30
  #define CX88_BOARD_DVICO_FUSIONHDTV_5_GOLD 31
  #define CX88_BOARD_AVERMEDIA_ULTRATV_MC_550 32
  #define CX88_BOARD_KWORLD_VSTREAM_EXPERT_DVD 33
  #define CX88_BOARD_ATI_HDTVWONDER          34
  #define CX88_BOARD_WINFAST_DTV1000         35
  #define CX88_BOARD_AVERTV_303              36
  #define CX88_BOARD_HAUPPAUGE_NOVASPLUS_S1  37
  #define CX88_BOARD_HAUPPAUGE_NOVASE2_S1    38
  #define CX88_BOARD_KWORLD_DVBS_100         39
  #define CX88_BOARD_HAUPPAUGE_HVR1100       40
  #define CX88_BOARD_HAUPPAUGE_HVR1100LP     41
  #define CX88_BOARD_DNTV_LIVE_DVB_T_PRO     42
  #define CX88_BOARD_KWORLD_DVB_T_CX22702    43
  #define CX88_BOARD_DVICO_FUSIONHDTV_DVB_T_DUAL 44
  #define CX88_BOARD_KWORLD_HARDWARE_MPEG_TV_XPERT 45
  #define CX88_BOARD_DVICO_FUSIONHDTV_DVB_T_HYBRID 46
  #define CX88_BOARD_PCHDTV_HD5500           47
  #define CX88_BOARD_KWORLD_MCE200_DELUXE    48
  #define CX88_BOARD_PIXELVIEW_PLAYTV_P7000  49
  #define CX88_BOARD_NPGTECH_REALTV_TOP10FM  50
  #define CX88_BOARD_WINFAST_DTV2000H        51
  #define CX88_BOARD_GENIATECH_DVBS          52
  #define CX88_BOARD_HAUPPAUGE_HVR3000       53
  #define CX88_BOARD_NORWOOD_MICRO           54
  #define CX88_BOARD_TE_DTV_250_OEM_SWANN    55
  #define CX88_BOARD_HAUPPAUGE_HVR1300       56
  #define CX88_BOARD_ADSTECH_PTV_390         57
  #define CX88_BOARD_PINNACLE_PCTV_HD_800i   58
  #define CX88_BOARD_DVICO_FUSIONHDTV_5_PCI_NANO 59
  #define CX88_BOARD_PINNACLE_HYBRID_PCTV    60
  #define CX88_BOARD_WINFAST_TV2000_XP_GLOBAL 61
  #define CX88_BOARD_POWERCOLOR_REAL_ANGEL   62
  #define CX88_BOARD_GENIATECH_X8000_MT      63
  #define CX88_BOARD_DVICO_FUSIONHDTV_DVB_T_PRO 64
  #define CX88_BOARD_DVICO_FUSIONHDTV_7_GOLD 65
  #define CX88_BOARD_PROLINK_PV_8000GT       66
  #define CX88_BOARD_KWORLD_ATSC_120         67
  #define CX88_BOARD_HAUPPAUGE_HVR4000       68
  #define CX88_BOARD_HAUPPAUGE_HVR4000LITE   69
  #define CX88_BOARD_TEVII_S460              70
  #define CX88_BOARD_OMICOM_SS4_PCI          71
  #define CX88_BOARD_TBS_8920                72
  #define CX88_BOARD_TEVII_S420              73
  #define CX88_BOARD_PROLINK_PV_GLOBAL_XTREME 74
  #define CX88_BOARD_PROF_7300               75
  #define CX88_BOARD_SATTRADE_ST4200         76
  #define CX88_BOARD_TBS_8910                77
  #define CX88_BOARD_PROF_6200               78
  #define CX88_BOARD_TERRATEC_CINERGY_HT_PCI_MKII 79
  #define CX88_BOARD_HAUPPAUGE_IRONLY        80
  #define CX88_BOARD_WINFAST_DTV1800H        81
  #define CX88_BOARD_WINFAST_DTV2000H_J      82
  #define CX88_BOARD_PROF_7301               83
  #define CX88_BOARD_SAMSUNG_SMT_7020        84
  #define CX88_BOARD_TWINHAN_VP1027_DVBS     85
  #define CX88_BOARD_TEVII_S464              86
  #define CX88_BOARD_WINFAST_DTV2000H_PLUS   87
  #define CX88_BOARD_WINFAST_DTV1800H_XC4000 88
  #define CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F36 89
  #define CX88_BOARD_WINFAST_TV2000_XP_GLOBAL_6F43 90
  
  enum cx88_itype {
  	CX88_VMUX_COMPOSITE1 = 1,
  	CX88_VMUX_COMPOSITE2,
  	CX88_VMUX_COMPOSITE3,
  	CX88_VMUX_COMPOSITE4,
  	CX88_VMUX_SVIDEO,
  	CX88_VMUX_TELEVISION,
  	CX88_VMUX_CABLE,
  	CX88_VMUX_DVB,
  	CX88_VMUX_DEBUG,
  	CX88_RADIO,
  };
  
  struct cx88_input {
  	enum cx88_itype type;
  	u32             gpio0, gpio1, gpio2, gpio3;
  	unsigned int    vmux:2;
  	unsigned int    audioroute:4;
  };
  
  struct cx88_board {
  	const char              *name;
  	unsigned int            tuner_type;
  	unsigned int		radio_type;
  	unsigned char		tuner_addr;
  	unsigned char		radio_addr;
  	int                     tda9887_conf;
  	struct cx88_input       input[MAX_CX88_INPUT];
  	struct cx88_input       radio;
  	enum cx88_board_type    mpeg;
  	unsigned int            audio_chip;
  	int			num_frontends;
  
  	/* Used for I2S devices */
  	int			i2sinputcntl;
  };
  
  struct cx88_subid {
  	u16     subvendor;
  	u16     subdevice;
  	u32     card;
  };
  
  enum cx88_tvaudio {
  	WW_NONE = 1,
  	WW_BTSC,
  	WW_BG,
  	WW_DK,
  	WW_I,
  	WW_L,
  	WW_EIAJ,
  	WW_I2SPT,
  	WW_FM,
  	WW_I2SADC,
  	WW_M
  };
  
  #define INPUT(nr) (core->board.input[nr])
  
  /* ----------------------------------------------------------- */
  /* device / file handle status                                 */
  
  #define RESOURCE_OVERLAY       1
  #define RESOURCE_VIDEO         2
  #define RESOURCE_VBI           4
  
  #define BUFFER_TIMEOUT     msecs_to_jiffies(2000)
  
  /* buffer for one video frame */
  struct cx88_buffer {
  	/* common v4l buffer stuff -- must be first */
  	struct videobuf_buffer vb;
  
  	/* cx88 specific */
  	unsigned int           bpl;
  	struct btcx_riscmem    risc;
  	const struct cx8800_fmt *fmt;
  	u32                    count;
  };
  
  struct cx88_dmaqueue {
  	struct list_head       active;
  	struct list_head       queued;
  	struct timer_list      timeout;
  	struct btcx_riscmem    stopper;
  	u32                    count;
  };
  
  struct cx88_core {
  	struct list_head           devlist;
  	atomic_t                   refcount;
  
  	/* board name */
  	int                        nr;
  	char                       name[32];
  
  	/* pci stuff */
  	int                        pci_bus;
  	int                        pci_slot;
  	u32                        __iomem *lmmio;
  	u8                         __iomem *bmmio;
  	u32                        shadow[SHADOW_MAX];
  	int                        pci_irqmask;
  
  	/* i2c i/o */
  	struct i2c_adapter         i2c_adap;
  	struct i2c_algo_bit_data   i2c_algo;
  	struct i2c_client          i2c_client;
  	u32                        i2c_state, i2c_rc;
  
  	/* config info -- analog */
  	struct v4l2_device 	   v4l2_dev;
  	struct v4l2_ctrl_handler   video_hdl;
  	struct v4l2_ctrl	   *chroma_agc;
  	struct v4l2_ctrl_handler   audio_hdl;
  	struct v4l2_subdev	   *sd_wm8775;
  	struct i2c_client 	   *i2c_rtc;
  	unsigned int               boardnr;
  	struct cx88_board	   board;
  
  	/* Supported V4L _STD_ tuner formats */
  	unsigned int               tuner_formats;
  
  	/* config info -- dvb */
  #if defined(CONFIG_VIDEO_CX88_DVB) || defined(CONFIG_VIDEO_CX88_DVB_MODULE)
  	int 			   (*prev_set_voltage)(struct dvb_frontend *fe, fe_sec_voltage_t voltage);
  #endif
  	void			   (*gate_ctrl)(struct cx88_core  *core, int open);
  
  	/* state info */
  	struct task_struct         *kthread;
  	v4l2_std_id                tvnorm;
  	enum cx88_tvaudio          tvaudio;
  	u32                        audiomode_manual;
  	u32                        audiomode_current;
  	u32                        input;
  	u32                        last_analog_input;
  	u32                        astat;
  	u32			   use_nicam;
  	unsigned long		   last_change;
  
  	/* IR remote control state */
  	struct cx88_IR             *ir;
  
  	/* I2C remote data */
  	struct IR_i2c_init_data    init_data;
  	struct wm8775_platform_data wm8775_data;
  
  	struct mutex               lock;
  	/* various v4l controls */
  	u32                        freq;
  	int                        users;
  	int                        mpeg_users;
  
  	/* cx88-video needs to access cx8802 for hybrid tuner pll access. */
  	struct cx8802_dev          *dvbdev;
  	enum cx88_board_type       active_type_id;
  	int			   active_ref;
  	int			   active_fe_id;
  };
  
  static inline struct cx88_core *to_core(struct v4l2_device *v4l2_dev)
  {
  	return container_of(v4l2_dev, struct cx88_core, v4l2_dev);
  }
  
  #define call_hw(core, grpid, o, f, args...) \
  	do {							\
  		if (!core->i2c_rc) {				\
  			if (core->gate_ctrl)			\
  				core->gate_ctrl(core, 1);	\
  			v4l2_device_call_all(&core->v4l2_dev, grpid, o, f, ##args); \
  			if (core->gate_ctrl)			\
  				core->gate_ctrl(core, 0);	\
  		}						\
  	} while (0)
  
  #define call_all(core, o, f, args...) call_hw(core, 0, o, f, ##args)
  
  #define WM8775_GID      (1 << 0)
  
  #define wm8775_s_ctrl(core, id, val) \
  	do {									\
  		struct v4l2_ctrl *ctrl_ =					\
  			v4l2_ctrl_find(core->sd_wm8775->ctrl_handler, id);	\
  		if (ctrl_ && !core->i2c_rc) {					\
  			if (core->gate_ctrl)					\
  				core->gate_ctrl(core, 1);			\
  			v4l2_ctrl_s_ctrl(ctrl_, val);				\
  			if (core->gate_ctrl)					\
  				core->gate_ctrl(core, 0);			\
  		}								\
  	} while (0)
  
  #define wm8775_g_ctrl(core, id) \
  	({									\
  		struct v4l2_ctrl *ctrl_ =					\
  			v4l2_ctrl_find(core->sd_wm8775->ctrl_handler, id);	\
  		s32 val = 0;							\
  		if (ctrl_ && !core->i2c_rc) {					\
  			if (core->gate_ctrl)					\
  				core->gate_ctrl(core, 1);			\
  			val = v4l2_ctrl_g_ctrl(ctrl_);				\
  			if (core->gate_ctrl)					\
  				core->gate_ctrl(core, 0);			\
  		}								\
  		val;								\
  	})
  
  struct cx8800_dev;
  struct cx8802_dev;
  
  /* ----------------------------------------------------------- */
  /* function 0: video stuff                                     */
  
  struct cx8800_fh {
  	struct v4l2_fh		   fh;
  	struct cx8800_dev          *dev;
  	unsigned int               resources;
  
  	/* video capture */
  	struct videobuf_queue      vidq;
  
  	/* vbi capture */
  	struct videobuf_queue      vbiq;
  };
  
  struct cx8800_suspend_state {
  	int                        disabled;
  };
  
  struct cx8800_dev {
  	struct cx88_core           *core;
  	spinlock_t                 slock;
  
  	/* various device info */
  	unsigned int               resources;
  	struct video_device        *video_dev;
  	struct video_device        *vbi_dev;
  	struct video_device        *radio_dev;
  
  	/* pci i/o */
  	struct pci_dev             *pci;
  	unsigned char              pci_rev,pci_lat;
  
  	const struct cx8800_fmt    *fmt;
  	unsigned int               width, height;
  
  	/* capture queues */
  	struct cx88_dmaqueue       vidq;
  	struct cx88_dmaqueue       vbiq;
  
  	/* various v4l controls */
  
  	/* other global state info */
  	struct cx8800_suspend_state state;
  };
  
  /* ----------------------------------------------------------- */
  /* function 1: audio/alsa stuff                                */
  /* =============> moved to cx88-alsa.c <====================== */
  
  
  /* ----------------------------------------------------------- */
  /* function 2: mpeg stuff                                      */
  
  struct cx8802_fh {
  	struct v4l2_fh		   fh;
  	struct cx8802_dev          *dev;
  	struct videobuf_queue      mpegq;
  };
  
  struct cx8802_suspend_state {
  	int                        disabled;
  };
  
  struct cx8802_driver {
  	struct cx88_core *core;
  
  	/* List of drivers attached to device */
  	struct list_head drvlist;
  
  	/* Type of driver and access required */
  	enum cx88_board_type type_id;
  	enum cx8802_board_access hw_access;
  
  	/* MPEG 8802 internal only */
  	int (*suspend)(struct pci_dev *pci_dev, pm_message_t state);
  	int (*resume)(struct pci_dev *pci_dev);
  
  	/* Callers to the following functions must hold core->lock */
  
  	/* MPEG 8802 -> mini driver - Driver probe and configuration */
  	int (*probe)(struct cx8802_driver *drv);
  	int (*remove)(struct cx8802_driver *drv);
  
  	/* MPEG 8802 -> mini driver - Access for hardware control */
  	int (*advise_acquire)(struct cx8802_driver *drv);
  	int (*advise_release)(struct cx8802_driver *drv);
  
  	/* MPEG 8802 <- mini driver - Access for hardware control */
  	int (*request_acquire)(struct cx8802_driver *drv);
  	int (*request_release)(struct cx8802_driver *drv);
  };
  
  struct cx8802_dev {
  	struct cx88_core           *core;
  	spinlock_t                 slock;
  
  	/* pci i/o */
  	struct pci_dev             *pci;
  	unsigned char              pci_rev,pci_lat;
  
  	/* dma queues */
  	struct cx88_dmaqueue       mpegq;
  	u32                        ts_packet_size;
  	u32                        ts_packet_count;
  
  	/* other global state info */
  	struct cx8802_suspend_state state;
  
  	/* for blackbird only */
  	struct list_head           devlist;
  #if defined(CONFIG_VIDEO_CX88_BLACKBIRD) || \
      defined(CONFIG_VIDEO_CX88_BLACKBIRD_MODULE)
  	struct video_device        *mpeg_dev;
  	u32                        mailbox;
  	int                        width;
  	int                        height;
  	unsigned char              mpeg_active; /* nonzero if mpeg encoder is active */
  
  	/* mpeg params */
  	struct cx2341x_handler     cxhdl;
  #endif
  
  #if defined(CONFIG_VIDEO_CX88_DVB) || defined(CONFIG_VIDEO_CX88_DVB_MODULE)
  	/* for dvb only */
  	struct videobuf_dvb_frontends frontends;
  #endif
  
  #if defined(CONFIG_VIDEO_CX88_VP3054) || \
      defined(CONFIG_VIDEO_CX88_VP3054_MODULE)
  	/* For VP3045 secondary I2C bus support */
  	struct vp3054_i2c_state	   *vp3054;
  #endif
  	/* for switching modulation types */
  	unsigned char              ts_gen_cntrl;
  
  	/* List of attached drivers; must hold core->lock to access */
  	struct list_head	   drvlist;
  
  	struct work_struct	   request_module_wk;
  };
  
  /* ----------------------------------------------------------- */
  
  #define cx_read(reg)             readl(core->lmmio + ((reg)>>2))
  #define cx_write(reg,value)      writel((value), core->lmmio + ((reg)>>2))
  #define cx_writeb(reg,value)     writeb((value), core->bmmio + (reg))
  
  #define cx_andor(reg,mask,value) \
    writel((readl(core->lmmio+((reg)>>2)) & ~(mask)) |\
    ((value) & (mask)), core->lmmio+((reg)>>2))
  #define cx_set(reg,bit)          cx_andor((reg),(bit),(bit))
  #define cx_clear(reg,bit)        cx_andor((reg),(bit),0)
  
  #define cx_wait(d) { if (need_resched()) schedule(); else udelay(d); }
  
  /* shadow registers */
  #define cx_sread(sreg)		    (core->shadow[sreg])
  #define cx_swrite(sreg,reg,value) \
    (core->shadow[sreg] = value, \
     writel(core->shadow[sreg], core->lmmio + ((reg)>>2)))
  #define cx_sandor(sreg,reg,mask,value) \
    (core->shadow[sreg] = (core->shadow[sreg] & ~(mask)) | ((value) & (mask)), \
     writel(core->shadow[sreg], core->lmmio + ((reg)>>2)))
  
  /* ----------------------------------------------------------- */
  /* cx88-core.c                                                 */
  
  extern void cx88_print_irqbits(const char *name, const char *tag, const char *strings[],
  			       int len, u32 bits, u32 mask);
  
  extern int cx88_core_irq(struct cx88_core *core, u32 status);
  extern void cx88_wakeup(struct cx88_core *core,
  			struct cx88_dmaqueue *q, u32 count);
  extern void cx88_shutdown(struct cx88_core *core);
  extern int cx88_reset(struct cx88_core *core);
  
  extern int
  cx88_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
  		 struct scatterlist *sglist,
  		 unsigned int top_offset, unsigned int bottom_offset,
  		 unsigned int bpl, unsigned int padding, unsigned int lines);
  extern int
  cx88_risc_databuffer(struct pci_dev *pci, struct btcx_riscmem *risc,
  		     struct scatterlist *sglist, unsigned int bpl,
  		     unsigned int lines, unsigned int lpi);
  extern int
  cx88_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
  		  u32 reg, u32 mask, u32 value);
  extern void
  cx88_free_buffer(struct videobuf_queue *q, struct cx88_buffer *buf);
  
  extern void cx88_risc_disasm(struct cx88_core *core,
  			     struct btcx_riscmem *risc);
  extern int cx88_sram_channel_setup(struct cx88_core *core,
  				   const struct sram_channel *ch,
  				   unsigned int bpl, u32 risc);
  extern void cx88_sram_channel_dump(struct cx88_core *core,
  				   const struct sram_channel *ch);
  
  extern int cx88_set_scale(struct cx88_core *core, unsigned int width,
  			  unsigned int height, enum v4l2_field field);
  extern int cx88_set_tvnorm(struct cx88_core *core, v4l2_std_id norm);
  
  extern struct video_device *cx88_vdev_init(struct cx88_core *core,
  					   struct pci_dev *pci,
  					   const struct video_device *template_,
  					   const char *type);
  extern struct cx88_core* cx88_core_get(struct pci_dev *pci);
  extern void cx88_core_put(struct cx88_core *core,
  			  struct pci_dev *pci);
  
  extern int cx88_start_audio_dma(struct cx88_core *core);
  extern int cx88_stop_audio_dma(struct cx88_core *core);
  
  
  /* ----------------------------------------------------------- */
  /* cx88-vbi.c                                                  */
  
  /* Can be used as g_vbi_fmt, try_vbi_fmt and s_vbi_fmt */
  int cx8800_vbi_fmt (struct file *file, void *priv,
  					struct v4l2_format *f);
  
  /*
  int cx8800_start_vbi_dma(struct cx8800_dev    *dev,
  			 struct cx88_dmaqueue *q,
  			 struct cx88_buffer   *buf);
  */
  int cx8800_stop_vbi_dma(struct cx8800_dev *dev);
  int cx8800_restart_vbi_queue(struct cx8800_dev    *dev,
  			     struct cx88_dmaqueue *q);
  void cx8800_vbi_timeout(unsigned long data);
  
  extern const struct videobuf_queue_ops cx8800_vbi_qops;
  
  /* ----------------------------------------------------------- */
  /* cx88-i2c.c                                                  */
  
  extern int cx88_i2c_init(struct cx88_core *core, struct pci_dev *pci);
  
  
  /* ----------------------------------------------------------- */
  /* cx88-cards.c                                                */
  
  extern int cx88_tuner_callback(void *dev, int component, int command, int arg);
  extern int cx88_get_resources(const struct cx88_core *core,
  			      struct pci_dev *pci);
  extern struct cx88_core *cx88_core_create(struct pci_dev *pci, int nr);
  extern void cx88_setup_xc3028(struct cx88_core *core, struct xc2028_ctrl *ctl);
  
  /* ----------------------------------------------------------- */
  /* cx88-tvaudio.c                                              */
  
  void cx88_set_tvaudio(struct cx88_core *core);
  void cx88_newstation(struct cx88_core *core);
  void cx88_get_stereo(struct cx88_core *core, struct v4l2_tuner *t);
  void cx88_set_stereo(struct cx88_core *core, u32 mode, int manual);
  int cx88_audio_thread(void *data);
  
  int cx8802_register_driver(struct cx8802_driver *drv);
  int cx8802_unregister_driver(struct cx8802_driver *drv);
  
  /* Caller must hold core->lock */
  struct cx8802_driver * cx8802_get_driver(struct cx8802_dev *dev, enum cx88_board_type btype);
  
  /* ----------------------------------------------------------- */
  /* cx88-dsp.c                                                  */
  
  s32 cx88_dsp_detect_stereo_sap(struct cx88_core *core);
  
  /* ----------------------------------------------------------- */
  /* cx88-input.c                                                */
  
  int cx88_ir_init(struct cx88_core *core, struct pci_dev *pci);
  int cx88_ir_fini(struct cx88_core *core);
  void cx88_ir_irq(struct cx88_core *core);
  int cx88_ir_start(struct cx88_core *core);
  void cx88_ir_stop(struct cx88_core *core);
  extern void cx88_i2c_init_ir(struct cx88_core *core);
  
  /* ----------------------------------------------------------- */
  /* cx88-mpeg.c                                                 */
  
  int cx8802_buf_prepare(struct videobuf_queue *q,struct cx8802_dev *dev,
  			struct cx88_buffer *buf, enum v4l2_field field);
  void cx8802_buf_queue(struct cx8802_dev *dev, struct cx88_buffer *buf);
  void cx8802_cancel_buffers(struct cx8802_dev *dev);
  
  /* ----------------------------------------------------------- */
  /* cx88-video.c*/
  int cx88_enum_input (struct cx88_core  *core,struct v4l2_input *i);
  int cx88_set_freq (struct cx88_core  *core,struct v4l2_frequency *f);
  int cx88_video_mux(struct cx88_core *core, unsigned int input);
  void cx88_querycap(struct file *file, struct cx88_core *core,
  		struct v4l2_capability *cap);
  