/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
   cx231xx.h - driver for Conexant Cx23100/101/102 USB video capture devices

   Copyright (C) 2008 <srinivasa.deevi at conexant dot com>
        Based on em28xx driver

 */

#ifndef _CX231XX_H
#define _CX231XX_H

#include <linux/videodev2.h>
#include <linux/types.h>
#include <linux/ioctl.h>
#include <linux/i2c.h>
#include <linux/workqueue.h>
#include <linux/mutex.h>
#include <linux/usb.h>

#include <media/drv-intf/cx2341x.h>

#include <media/videobuf2-vmalloc.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ctrls.h>
#include <media/v4l2-fh.h>
#include <media/rc-core.h>
#include <media/i2c/ir-kbd-i2c.h>

#include "cx231xx-reg.h"
#include "cx231xx-pcb-cfg.h"
#include "cx231xx-conf-reg.h"

#define DRIVER_NAME                     "cx231xx"
#define PWR_SLEEP_INTERVAL              10

/* I2C addresses for control block in Cx231xx */
#define     AFE_DEVICE_ADDRESS          0x60
#define     I2S_BLK_DEVICE_ADDRESS      0x98
#define     VID_BLK_I2C_ADDRESS         0x88
#define     VERVE_I2C_ADDRESS           0x40
#define     DIF_USE_BASEBAND            0xFFFFFFFF

/* Boards supported by driver */
#define CX231XX_BOARD_UNKNOWN               0
#define CX231XX_BOARD_CNXT_CARRAERA     1
#define CX231XX_BOARD_CNXT_SHELBY       2
#define CX231XX_BOARD_CNXT_RDE_253S     3
#define CX231XX_BOARD_CNXT_RDU_253S     4
#define CX231XX_BOARD_CNXT_VIDEO_GRABBER        5
#define CX231XX_BOARD_CNXT_RDE_250      6
#define CX231XX_BOARD_CNXT_RDU_250      7
#define CX231XX_BOARD_HAUPPAUGE_EXETER  8
#define CX231XX_BOARD_HAUPPAUGE_USBLIVE2 9
#define CX231XX_BOARD_PV_PLAYTV_USB_HYBRID 10
#define CX231XX_BOARD_PV_XCAPTURE_USB 11
#define CX231XX_BOARD_KWORLD_UB430_USB_HYBRID 12
#define CX231XX_BOARD_ICONBIT_U100 13
#define CX231XX_BOARD_HAUPPAUGE_USB2_FM_PAL 14
#define CX231XX_BOARD_HAUPPAUGE_USB2_FM_NTSC 15
#define CX231XX_BOARD_ELGATO_VIDEO_CAPTURE_V2 16
#define CX231XX_BOARD_OTG102 17
#define CX231XX_BOARD_KWORLD_UB445_USB_HYBRID 18
#define CX231XX_BOARD_HAUPPAUGE_930C_HD_1113xx 19
#define CX231XX_BOARD_HAUPPAUGE_930C_HD_1114xx 20
#define CX231XX_BOARD_HAUPPAUGE_955Q 21
#define CX231XX_BOARD_TERRATEC_GRABBY 22
#define CX231XX_BOARD_EVROMEDIA_FULL_HYBRID_FULLHD 23
#define CX231XX_BOARD_ASTROMETA_T2HYBRID 24
#define CX231XX_BOARD_THE_IMAGING_SOURCE_DFG_USB2_PRO 25
#define CX231XX_BOARD_HAUPPAUGE_935C 26
#define CX231XX_BOARD_HAUPPAUGE_975 27

/* Limits minimum and default number of buffers */
#define CX231XX_MIN_BUF                 4
#define CX231XX_DEF_BUF                 12
#define CX231XX_DEF_VBI_BUF             6

#define VBI_LINE_COUNT                  17
#define VBI_LINE_LENGTH                 1440

/*Limits the max URB message size */
#define URB_MAX_CTRL_SIZE               80

/* Params for validated field */
#define CX231XX_BOARD_NOT_VALIDATED     1
#define CX231XX_BOARD_VALIDATED         0

/* maximum number of cx231xx boards */
#define CX231XX_MAXBOARDS               8

/* maximum number of frames that can be queued */
#define CX231XX_NUM_FRAMES              5

/* number of buffers for isoc transfers */
#define CX231XX_NUM_BUFS                8

/* number of packets for each buffer
   windows requests only 40 packets .. so we better do the same
   this is what I found out for all alternate numbers there!
 */
#define CX231XX_NUM_PACKETS             40

/* default alternate; 0 means choose the best */
#define CX231XX_PINOUT                  0

#define CX231XX_INTERLACED_DEFAULT      1

/* time to wait when stopping the isoc transfer */
#define CX231XX_URB_TIMEOUT             \
                msecs_to_jiffies(CX231XX_NUM_BUFS * CX231XX_NUM_PACKETS)

#define CX231xx_NORMS (\
        V4L2_STD_NTSC_M |  V4L2_STD_NTSC_M_JP |  V4L2_STD_NTSC_443 | \
        V4L2_STD_PAL_BG |  V4L2_STD_PAL_DK    |  V4L2_STD_PAL_I    | \
        V4L2_STD_PAL_M  |  V4L2_STD_PAL_N     |  V4L2_STD_PAL_Nc   | \
        V4L2_STD_PAL_60 |  V4L2_STD_SECAM_L   |  V4L2_STD_SECAM_DK)

#define SLEEP_S5H1432    30
#define CX23417_OSC_EN   8
#define CX23417_RESET    9

#define EP5_BUF_SIZE     4096
#define EP5_TIMEOUT_MS   2000

struct cx23417_fmt {
        u32   fourcc;          /* v4l2 format id */
        int   depth;
        int   flags;
        u32   cxformat;
};
enum cx231xx_mode {
        CX231XX_SUSPEND,
        CX231XX_ANALOG_MODE,
        CX231XX_DIGITAL_MODE,
};

enum cx231xx_std_mode {
        CX231XX_TV_AIR = 0,
        CX231XX_TV_CABLE
};

enum cx231xx_stream_state {
        STREAM_OFF,
        STREAM_INTERRUPT,
        STREAM_ON,
};

struct cx231xx;

struct cx231xx_isoc_ctl {
        /* max packet size of isoc transaction */
        int max_pkt_size;

        /* number of allocated urbs */
        int num_bufs;

        /* urb for isoc transfers */
        struct urb **urb;

        /* transfer buffers for isoc transfer */
        char **transfer_buffer;

        /* Last buffer command and region */
        u8 cmd;
        int pos, size, pktsize;

        /* Last field: ODD or EVEN? */
        int field;

        /* Stores incomplete commands */
        u32 tmp_buf;
        int tmp_buf_len;

        /* Stores already requested buffers */
        struct cx231xx_buffer *buf;

        /* Stores the number of received fields */
        int nfields;

        /* isoc urb callback */
        int (*isoc_copy) (struct cx231xx *dev, struct urb *urb);
};

struct cx231xx_bulk_ctl {
        /* max packet size of bulk transaction */
        int max_pkt_size;

        /* number of allocated urbs */
        int num_bufs;

        /* urb for bulk transfers */
        struct urb **urb;

        /* transfer buffers for bulk transfer */
        char **transfer_buffer;

        /* Last buffer command and region */
        u8 cmd;
        int pos, size, pktsize;

        /* Last field: ODD or EVEN? */
        int field;

        /* Stores incomplete commands */
        u32 tmp_buf;
        int tmp_buf_len;

        /* Stores already requested buffers */
        struct cx231xx_buffer *buf;

        /* Stores the number of received fields */
        int nfields;

        /* bulk urb callback */
        int (*bulk_copy) (struct cx231xx *dev, struct urb *urb);
};

struct cx231xx_fmt {
        char *name;
        u32 fourcc;             /* v4l2 format id */
        int depth;
        int reg;
};

/* buffer for one video frame */
struct cx231xx_buffer {
        /* common v4l buffer stuff -- must be first */
        struct vb2_v4l2_buffer vb;
        struct list_head list;
        struct list_head frame;
        int top_field;
        int receiving;
};

enum ps_package_head {
        CX231XX_NEED_ADD_PS_PACKAGE_HEAD = 0,
        CX231XX_NONEED_PS_PACKAGE_HEAD
};

struct cx231xx_dmaqueue {
        struct list_head active;

        wait_queue_head_t wq;

        /* Counters to control buffer fill */
        int pos;
        u8 is_partial_line;
        u8 partial_buf[8];
        u8 last_sav;
        int current_field;
        u32 bytes_left_in_line;
        u32 lines_completed;
        u8 field1_done;
        u32 lines_per_field;
        u32 sequence;

        /*Mpeg2 control buffer*/
        u8 *p_left_data;
        u32 left_data_count;
        u8 mpeg_buffer_done;
        u32 mpeg_buffer_completed;
        enum ps_package_head add_ps_package_head;
        char ps_head[10];
};

/* inputs */

#define MAX_CX231XX_INPUT               4

enum cx231xx_itype {
        CX231XX_VMUX_COMPOSITE1 = 1,
        CX231XX_VMUX_SVIDEO,
        CX231XX_VMUX_TELEVISION,
        CX231XX_VMUX_CABLE,
        CX231XX_RADIO,
        CX231XX_VMUX_DVB,
};

enum cx231xx_v_input {
        CX231XX_VIN_1_1 = 0x1,
        CX231XX_VIN_2_1,
        CX231XX_VIN_3_1,
        CX231XX_VIN_4_1,
        CX231XX_VIN_1_2 = 0x01,
        CX231XX_VIN_2_2,
        CX231XX_VIN_3_2,
        CX231XX_VIN_1_3 = 0x1,
        CX231XX_VIN_2_3,
        CX231XX_VIN_3_3,
};

/* cx231xx has two audio inputs: tuner and line in */
enum cx231xx_amux {
        /* This is the only entry for cx231xx tuner input */
        CX231XX_AMUX_VIDEO,     /* cx231xx tuner */
        CX231XX_AMUX_LINE_IN,   /* Line In */
};

struct cx231xx_reg_seq {
        unsigned char bit;
        unsigned char val;
        int sleep;
};

struct cx231xx_input {
        enum cx231xx_itype type;
        unsigned int vmux;
        enum cx231xx_amux amux;
        struct cx231xx_reg_seq *gpio;
};

#define INPUT(nr) (&cx231xx_boards[dev->model].input[nr])

enum cx231xx_decoder {
        CX231XX_NODECODER,
        CX231XX_AVDECODER
};

enum CX231XX_I2C_MASTER_PORT {
        I2C_0 = 0,       /* master 0 - internal connection */
        I2C_1 = 1,       /* master 1 - used with mux */
        I2C_2 = 2,       /* master 2 */
        I2C_1_MUX_1 = 3, /* master 1 - port 1 (I2C_DEMOD_EN = 0) */
        I2C_1_MUX_3 = 4  /* master 1 - port 3 (I2C_DEMOD_EN = 1) */
};

struct cx231xx_board {
        char *name;
        int vchannels;
        int tuner_type;
        int tuner_addr;
        v4l2_std_id norm;       /* tv norm */

        /* demod related */
        int demod_addr;
        int demod_addr2;
        u8 demod_xfer_mode;     /* 0 - Serial; 1 - parallel */

        /* GPIO Pins */
        struct cx231xx_reg_seq *dvb_gpio;
        struct cx231xx_reg_seq *suspend_gpio;
        struct cx231xx_reg_seq *tuner_gpio;
                /* Negative means don't use it */
        s8 tuner_sif_gpio;
        s8 tuner_scl_gpio;
        s8 tuner_sda_gpio;

        /* PIN ctrl */
        u32 ctl_pin_status_mask;
        u8 agc_analog_digital_select_gpio;
        u32 gpio_pin_status_mask;

        /* i2c masters */
        u8 tuner_i2c_master;
        u8 demod_i2c_master;
        u8 ir_i2c_master;

        /* for devices with I2C chips for IR */
        char *rc_map_name;

        unsigned int max_range_640_480:1;
        unsigned int has_dvb:1;
        unsigned int has_417:1;
        unsigned int valid:1;
        unsigned int no_alt_vanc:1;
        unsigned int external_av:1;

        unsigned char xclk, i2c_speed;

        enum cx231xx_decoder decoder;
        int output_mode;

        struct cx231xx_input input[MAX_CX231XX_INPUT];
        struct cx231xx_input radio;
        struct rc_map *ir_codes;
};

/* device states */
enum cx231xx_dev_state {
        DEV_INITIALIZED = 0x01,
        DEV_DISCONNECTED = 0x02,
};

enum AFE_MODE {
        AFE_MODE_LOW_IF,
        AFE_MODE_BASEBAND,
        AFE_MODE_EU_HI_IF,
        AFE_MODE_US_HI_IF,
        AFE_MODE_JAPAN_HI_IF
};

enum AUDIO_INPUT {
        AUDIO_INPUT_MUTE,
        AUDIO_INPUT_LINE,
        AUDIO_INPUT_TUNER_TV,
        AUDIO_INPUT_SPDIF,
        AUDIO_INPUT_TUNER_FM
};

#define CX231XX_AUDIO_BUFS              5
#define CX231XX_NUM_AUDIO_PACKETS       16
#define CX231XX_ISO_NUM_AUDIO_PACKETS   64

/* cx231xx extensions */
#define CX231XX_AUDIO                   0x10
#define CX231XX_DVB                     0x20

struct cx231xx_audio {
        char name[50];
        char *transfer_buffer[CX231XX_AUDIO_BUFS];
        struct urb *urb[CX231XX_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, shutdown;
        /* locks */
        spinlock_t slock;

        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 */
        u16 end_point_addr;
};

/*****************************************************************/
/* set/get i2c */
/* 00--1Mb/s, 01-400kb/s, 10--100kb/s, 11--5Mb/s */
#define I2C_SPEED_1M            0x0
#define I2C_SPEED_400K          0x1
#define I2C_SPEED_100K          0x2
#define I2C_SPEED_5M            0x3

/* 0-- STOP transaction */
#define I2C_STOP                0x0
/* 1-- do not transmit STOP at end of transaction */
#define I2C_NOSTOP              0x1
/* 1--allow slave to insert clock wait states */
#define I2C_SYNC                0x1

struct cx231xx_i2c {
        struct cx231xx *dev;

        int nr;

        /* i2c i/o */
        struct i2c_adapter i2c_adap;
        int i2c_rc;

        /* different settings for each bus */
        u8 i2c_period;
        u8 i2c_nostop;
        u8 i2c_reserve;
};

struct cx231xx_i2c_xfer_data {
        u8 dev_addr;
        u8 direction;           /* 1 - IN, 0 - OUT */
        u8 saddr_len;           /* sub address len */
        u16 saddr_dat;          /* sub addr data */
        u8 buf_size;            /* buffer size */
        u8 *p_buffer;           /* pointer to the buffer */
};

struct VENDOR_REQUEST_IN {
        u8 bRequest;
        u16 wValue;
        u16 wIndex;
        u16 wLength;
        u8 direction;
        u8 bData;
        u8 *pBuff;
};

struct cx231xx_tvnorm {
        char            *name;
        v4l2_std_id     id;
        u32             cxiformat;
        u32             cxoformat;
};

enum TRANSFER_TYPE {
        Raw_Video = 0,
        Audio,
        Vbi,                    /* VANC */
        Sliced_cc,              /* HANC */
        TS1_serial_mode,
        TS2,
        TS1_parallel_mode
} ;

struct cx231xx_video_mode {
        /* Isoc control struct */
        struct cx231xx_dmaqueue vidq;
        struct cx231xx_isoc_ctl isoc_ctl;
        struct cx231xx_bulk_ctl bulk_ctl;
        /* locks */
        spinlock_t slock;

        /* usb transfer */
        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 */
        u16 end_point_addr;
};

struct cx231xx_tsport {
        struct cx231xx *dev;

        int                        nr;
        int                        sram_chno;

        /* dma queues */

        u32                        ts_packet_size;
        u32                        ts_packet_count;

        int                        width;
        int                        height;

        /* locks */
        spinlock_t                 slock;

        /* registers */
        u32                        reg_gpcnt;
        u32                        reg_gpcnt_ctl;
        u32                        reg_dma_ctl;
        u32                        reg_lngth;
        u32                        reg_hw_sop_ctrl;
        u32                        reg_gen_ctrl;
        u32                        reg_bd_pkt_status;
        u32                        reg_sop_status;
        u32                        reg_fifo_ovfl_stat;
        u32                        reg_vld_misc;
        u32                        reg_ts_clk_en;
        u32                        reg_ts_int_msk;
        u32                        reg_ts_int_stat;
        u32                        reg_src_sel;

        /* Default register vals */
        int                        pci_irqmask;
        u32                        dma_ctl_val;
        u32                        ts_int_msk_val;
        u32                        gen_ctrl_val;
        u32                        ts_clk_en_val;
        u32                        src_sel_val;
        u32                        vld_misc_val;
        u32                        hw_sop_ctrl_val;

        /* Allow a single tsport to have multiple frontends */
        u32                        num_frontends;
        void                       *port_priv;
};

/* main device struct */
struct cx231xx {
        /* 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 */
        struct device *dev;     /* pointer to USB interface's dev */

        struct cx231xx_board board;

        /* For I2C IR support */
        struct IR_i2c_init_data    init_data;
        struct i2c_client          *ir_i2c_client;

        unsigned int stream_on:1;       /* Locks streams */
        unsigned int vbi_stream_on:1;   /* Locks streams for VBI */
        unsigned int has_audio_class:1;
        unsigned int has_alsa_audio:1;

        unsigned int i2c_scan_running:1; /* true only during i2c_scan */

        struct cx231xx_fmt *format;

        struct v4l2_device v4l2_dev;
        struct v4l2_subdev *sd_cx25840;
        struct v4l2_subdev *sd_tuner;
        struct v4l2_ctrl_handler ctrl_handler;
        struct v4l2_ctrl_handler radio_ctrl_handler;
        struct cx2341x_handler mpeg_ctrl_handler;

        struct work_struct wq_trigger;          /* Trigger to start/stop audio for alsa module */
        atomic_t           stream_started;      /* stream should be running if true */

        struct list_head devlist;

        int tuner_type;         /* type of the tuner */
        int tuner_addr;         /* tuner address */

        /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
        struct cx231xx_i2c i2c_bus[3];
        struct i2c_mux_core *muxc;
        struct i2c_adapter *i2c_mux_adap[2];

        unsigned int xc_fw_load_done:1;
        unsigned int port_3_switch_enabled:1;
        /* locks */
        struct mutex gpio_i2c_lock;
        struct mutex i2c_lock;

        /* 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_ainput;        /* selected audio input */

        /* frame properties */
        int width;              /* current frame width */
        int height;             /* current frame height */
        int interlaced;         /* 1=interlace fields, 0=just top fields */
        unsigned int size;

        struct cx231xx_audio adev;

        /* states */
        enum cx231xx_dev_state state;

        struct work_struct request_module_wk;

        /* locks */
        struct mutex lock;
        struct mutex ctrl_urb_lock;     /* protects urb_buf */
        struct list_head inqueue, outqueue;
        wait_queue_head_t open, wait_frame, wait_stream;
        struct video_device vbi_dev;
        struct video_device radio_dev;

#if defined(CONFIG_MEDIA_CONTROLLER)
        struct media_device *media_dev;
        struct media_pad video_pad, vbi_pad;
        struct media_entity input_ent[MAX_CX231XX_INPUT];
        struct media_pad input_pad[MAX_CX231XX_INPUT];
#endif

        struct vb2_queue vidq;
        struct vb2_queue vbiq;

        unsigned char eedata[256];

        struct cx231xx_video_mode video_mode;
        struct cx231xx_video_mode vbi_mode;
        struct cx231xx_video_mode sliced_cc_mode;
        struct cx231xx_video_mode ts1_mode;

        atomic_t devlist_count;

        struct usb_device *udev;        /* the usb device */
        char urb_buf[URB_MAX_CTRL_SIZE];        /* urb control msg buffer */

        /* helper funcs that call usb_control_msg */
        int (*cx231xx_read_ctrl_reg) (struct cx231xx *dev, u8 req, u16 reg,
                                      char *buf, int len);
        int (*cx231xx_write_ctrl_reg) (struct cx231xx *dev, u8 req, u16 reg,
                                       char *buf, int len);
        int (*cx231xx_send_usb_command) (struct cx231xx_i2c *i2c_bus,
                                struct cx231xx_i2c_xfer_data *req_data);
        int (*cx231xx_gpio_i2c_read) (struct cx231xx *dev, u8 dev_addr,
                                      u8 *buf, u8 len);
        int (*cx231xx_gpio_i2c_write) (struct cx231xx *dev, u8 dev_addr,
                                       u8 *buf, u8 len);

        int (*cx231xx_set_analog_freq) (struct cx231xx *dev, u32 freq);
        int (*cx231xx_reset_analog_tuner) (struct cx231xx *dev);

        enum cx231xx_mode mode;

        struct cx231xx_dvb *dvb;

        /* Cx231xx supported PCB config's */
        struct pcb_config current_pcb_config;
        u8 current_scenario_idx;
        u8 interface_count;
        u8 max_iad_interface_count;

        /* GPIO related register direction and values */
        u32 gpio_dir;
        u32 gpio_val;

        /* Power Modes */
        int power_mode;

        /* afe parameters */
        enum AFE_MODE afe_mode;
        u32 afe_ref_count;

        /* video related parameters */
        u32 video_input;
        u32 active_mode;
        u8 vbi_or_sliced_cc_mode;       /* 0 - vbi ; 1 - sliced cc mode */
        enum cx231xx_std_mode std_mode; /* 0 - Air; 1 - cable */

        /*mode: digital=1 or analog=0*/
        u8 mode_tv;

        u8 USE_ISO;
        struct cx231xx_tvnorm      encodernorm;
        struct cx231xx_tsport      ts1, ts2;
        struct vb2_queue           mpegq;
        struct video_device        v4l_device;
        atomic_t                   v4l_reader_count;
        u32                        freq;
        unsigned int               input;
        u32                        cx23417_mailbox;
        u32                        __iomem *lmmio;
        u8                         __iomem *bmmio;
};

extern struct list_head cx231xx_devlist;

#define cx25840_call(cx231xx, o, f, args...) \
        v4l2_subdev_call(cx231xx->sd_cx25840, o, f, ##args)
#define tuner_call(cx231xx, o, f, args...) \
        v4l2_subdev_call(cx231xx->sd_tuner, o, f, ##args)
#define call_all(dev, o, f, args...) \
        v4l2_device_call_until_err(&dev->v4l2_dev, 0, o, f, ##args)

struct cx231xx_ops {
        struct list_head next;
        char *name;
        int id;
        int (*init) (struct cx231xx *);
        int (*fini) (struct cx231xx *);
};

/* call back functions in dvb module */
int cx231xx_set_analog_freq(struct cx231xx *dev, u32 freq);
int cx231xx_reset_analog_tuner(struct cx231xx *dev);

/* Provided by cx231xx-i2c.c */
void cx231xx_do_i2c_scan(struct cx231xx *dev, int i2c_port);
int cx231xx_i2c_register(struct cx231xx_i2c *bus);
void cx231xx_i2c_unregister(struct cx231xx_i2c *bus);
int cx231xx_i2c_mux_create(struct cx231xx *dev);
int cx231xx_i2c_mux_register(struct cx231xx *dev, int mux_no);
void cx231xx_i2c_mux_unregister(struct cx231xx *dev);
struct i2c_adapter *cx231xx_get_i2c_adap(struct cx231xx *dev, int i2c_port);

/* Internal block control functions */
int cx231xx_read_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
                 u8 saddr_len, u32 *data, u8 data_len, int master);
int cx231xx_write_i2c_master(struct cx231xx *dev, u8 dev_addr, u16 saddr,
                 u8 saddr_len, u32 data, u8 data_len, int master);
int cx231xx_read_i2c_data(struct cx231xx *dev, u8 dev_addr,
                          u16 saddr, u8 saddr_len, u32 *data, u8 data_len);
int cx231xx_write_i2c_data(struct cx231xx *dev, u8 dev_addr,
                           u16 saddr, u8 saddr_len, u32 data, u8 data_len);
int cx231xx_reg_mask_write(struct cx231xx *dev, u8 dev_addr, u8 size,
                           u16 register_address, u8 bit_start, u8 bit_end,
                           u32 value);
int cx231xx_read_modify_write_i2c_dword(struct cx231xx *dev, u8 dev_addr,
                                        u16 saddr, u32 mask, u32 value);
u32 cx231xx_set_field(u32 field_mask, u32 data);

/*verve r/w*/
void initGPIO(struct cx231xx *dev);
void uninitGPIO(struct cx231xx *dev);
/* afe related functions */
int cx231xx_afe_init_super_block(struct cx231xx *dev, u32 ref_count);
int cx231xx_afe_init_channels(struct cx231xx *dev);
int cx231xx_afe_setup_AFE_for_baseband(struct cx231xx *dev);
int cx231xx_afe_set_input_mux(struct cx231xx *dev, u32 input_mux);
int cx231xx_afe_set_mode(struct cx231xx *dev, enum AFE_MODE mode);
int cx231xx_afe_update_power_control(struct cx231xx *dev,
                                        enum AV_MODE avmode);
int cx231xx_afe_adjust_ref_count(struct cx231xx *dev, u32 video_input);

/* i2s block related functions */
int cx231xx_i2s_blk_initialize(struct cx231xx *dev);
int cx231xx_i2s_blk_update_power_control(struct cx231xx *dev,
                                        enum AV_MODE avmode);
int cx231xx_i2s_blk_set_audio_input(struct cx231xx *dev, u8 audio_input);

/* DIF related functions */
int cx231xx_dif_configure_C2HH_for_low_IF(struct cx231xx *dev, u32 mode,
                                          u32 function_mode, u32 standard);
void cx231xx_set_Colibri_For_LowIF(struct cx231xx *dev, u32 if_freq,
                                         u8 spectral_invert, u32 mode);
u32 cx231xx_Get_Colibri_CarrierOffset(u32 mode, u32 standerd);
void cx231xx_set_DIF_bandpass(struct cx231xx *dev, u32 if_freq,
                                         u8 spectral_invert, u32 mode);
void cx231xx_Setup_AFE_for_LowIF(struct cx231xx *dev);
void reset_s5h1432_demod(struct cx231xx *dev);
void update_HH_register_after_set_DIF(struct cx231xx *dev);



int cx231xx_dif_set_standard(struct cx231xx *dev, u32 standard);
int cx231xx_tuner_pre_channel_change(struct cx231xx *dev);
int cx231xx_tuner_post_channel_change(struct cx231xx *dev);

/* video parser functions */
u8 cx231xx_find_next_SAV_EAV(u8 *p_buffer, u32 buffer_size,
                             u32 *p_bytes_used);
u8 cx231xx_find_boundary_SAV_EAV(u8 *p_buffer, u8 *partial_buf,
                                 u32 *p_bytes_used);
int cx231xx_do_copy(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
                    u8 *p_buffer, u32 bytes_to_copy);
void cx231xx_reset_video_buffer(struct cx231xx *dev,
                                struct cx231xx_dmaqueue *dma_q);
u8 cx231xx_is_buffer_done(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q);
u32 cx231xx_copy_video_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
                            u8 *p_line, u32 length, int field_number);
u32 cx231xx_get_video_line(struct cx231xx *dev, struct cx231xx_dmaqueue *dma_q,
                           u8 sav_eav, u8 *p_buffer, u32 buffer_size);
void cx231xx_swab(u16 *from, u16 *to, u16 len);

/* Provided by cx231xx-core.c */

u32 cx231xx_request_buffers(struct cx231xx *dev, u32 count);
void cx231xx_queue_unusedframes(struct cx231xx *dev);
void cx231xx_release_buffers(struct cx231xx *dev);

/* read from control pipe */
int cx231xx_read_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
                          char *buf, int len);

/* write to control pipe */
int cx231xx_write_ctrl_reg(struct cx231xx *dev, u8 req, u16 reg,
                           char *buf, int len);
int cx231xx_mode_register(struct cx231xx *dev, u16 address, u32 mode);

int cx231xx_send_vendor_cmd(struct cx231xx *dev,
                                struct VENDOR_REQUEST_IN *ven_req);
int cx231xx_send_usb_command(struct cx231xx_i2c *i2c_bus,
                                struct cx231xx_i2c_xfer_data *req_data);

/* Gpio related functions */
int cx231xx_send_gpio_cmd(struct cx231xx *dev, u32 gpio_bit, u8 *gpio_val,
                          u8 len, u8 request, u8 direction);
int cx231xx_set_gpio_value(struct cx231xx *dev, int pin_number, int pin_value);
int cx231xx_set_gpio_direction(struct cx231xx *dev, int pin_number,
                               int pin_value);

int cx231xx_gpio_i2c_start(struct cx231xx *dev);
int cx231xx_gpio_i2c_end(struct cx231xx *dev);
int cx231xx_gpio_i2c_write_byte(struct cx231xx *dev, u8 data);
int cx231xx_gpio_i2c_read_byte(struct cx231xx *dev, u8 *buf);
int cx231xx_gpio_i2c_read_ack(struct cx231xx *dev);
int cx231xx_gpio_i2c_write_ack(struct cx231xx *dev);
int cx231xx_gpio_i2c_write_nak(struct cx231xx *dev);

int cx231xx_gpio_i2c_read(struct cx231xx *dev, u8 dev_addr, u8 *buf, u8 len);
int cx231xx_gpio_i2c_write(struct cx231xx *dev, u8 dev_addr, u8 *buf, u8 len);

/* audio related functions */
int cx231xx_set_audio_decoder_input(struct cx231xx *dev,
                                    enum AUDIO_INPUT audio_input);

int cx231xx_capture_start(struct cx231xx *dev, int start, u8 media_type);
int cx231xx_set_video_alternate(struct cx231xx *dev);
int cx231xx_set_alt_setting(struct cx231xx *dev, u8 index, u8 alt);
int is_fw_load(struct cx231xx *dev);
int cx231xx_check_fw(struct cx231xx *dev);
int cx231xx_init_isoc(struct cx231xx *dev, int max_packets,
                      int num_bufs, int max_pkt_size,
                      int (*isoc_copy) (struct cx231xx *dev,
                                        struct urb *urb));
int cx231xx_init_bulk(struct cx231xx *dev, int max_packets,
                      int num_bufs, int max_pkt_size,
                      int (*bulk_copy) (struct cx231xx *dev,
                                        struct urb *urb));
void cx231xx_stop_TS1(struct cx231xx *dev);
void cx231xx_start_TS1(struct cx231xx *dev);
void cx231xx_uninit_isoc(struct cx231xx *dev);
void cx231xx_uninit_bulk(struct cx231xx *dev);
int cx231xx_set_mode(struct cx231xx *dev, enum cx231xx_mode set_mode);
int cx231xx_unmute_audio(struct cx231xx *dev);
int cx231xx_ep5_bulkout(struct cx231xx *dev, u8 *firmware, u16 size);
void cx231xx_disable656(struct cx231xx *dev);
void cx231xx_enable656(struct cx231xx *dev);
int cx231xx_demod_reset(struct cx231xx *dev);
int cx231xx_gpio_set(struct cx231xx *dev, struct cx231xx_reg_seq *gpio);

/* Device list functions */
void cx231xx_release_resources(struct cx231xx *dev);
void cx231xx_release_analog_resources(struct cx231xx *dev);
int cx231xx_register_analog_devices(struct cx231xx *dev);
void cx231xx_remove_from_devlist(struct cx231xx *dev);
void cx231xx_add_into_devlist(struct cx231xx *dev);
void cx231xx_init_extension(struct cx231xx *dev);
void cx231xx_close_extension(struct cx231xx *dev);

/* hardware init functions */
int cx231xx_dev_init(struct cx231xx *dev);
void cx231xx_dev_uninit(struct cx231xx *dev);
void cx231xx_config_i2c(struct cx231xx *dev);
int cx231xx_config(struct cx231xx *dev);

/* Stream control functions */
int cx231xx_start_stream(struct cx231xx *dev, u32 ep_mask);
int cx231xx_stop_stream(struct cx231xx *dev, u32 ep_mask);

int cx231xx_initialize_stream_xfer(struct cx231xx *dev, u32 media_type);

/* Power control functions */
int cx231xx_set_power_mode(struct cx231xx *dev, enum AV_MODE mode);

/* chip specific control functions */
int cx231xx_init_ctrl_pin_status(struct cx231xx *dev);
int cx231xx_set_agc_analog_digital_mux_select(struct cx231xx *dev,
                                              u8 analog_or_digital);
int cx231xx_enable_i2c_port_3(struct cx231xx *dev, bool is_port_3);

/* video audio decoder related functions */
void video_mux(struct cx231xx *dev, int index);
int cx231xx_set_video_input_mux(struct cx231xx *dev, u8 input);
int cx231xx_set_decoder_video_input(struct cx231xx *dev, u8 pin_type, u32 input);
int cx231xx_do_mode_ctrl_overrides(struct cx231xx *dev);
int cx231xx_set_audio_input(struct cx231xx *dev, u8 input);

/* Provided by cx231xx-video.c */
int cx231xx_register_extension(struct cx231xx_ops *dev);
void cx231xx_unregister_extension(struct cx231xx_ops *dev);
void cx231xx_init_extension(struct cx231xx *dev);
void cx231xx_close_extension(struct cx231xx *dev);
void cx231xx_v4l2_create_entities(struct cx231xx *dev);
int cx231xx_querycap(struct file *file, void *priv,
                           struct v4l2_capability *cap);
int cx231xx_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t);
int cx231xx_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t);
int cx231xx_g_frequency(struct file *file, void *priv,
                              struct v4l2_frequency *f);
int cx231xx_s_frequency(struct file *file, void *priv,
                              const struct v4l2_frequency *f);
int cx231xx_enum_input(struct file *file, void *priv,
                             struct v4l2_input *i);
int cx231xx_g_input(struct file *file, void *priv, unsigned int *i);
int cx231xx_s_input(struct file *file, void *priv, unsigned int i);
int cx231xx_g_chip_info(struct file *file, void *fh, struct v4l2_dbg_chip_info *chip);
int cx231xx_g_register(struct file *file, void *priv,
                             struct v4l2_dbg_register *reg);
int cx231xx_s_register(struct file *file, void *priv,
                             const struct v4l2_dbg_register *reg);

/* Provided by cx231xx-cards.c */
extern void cx231xx_pre_card_setup(struct cx231xx *dev);
extern void cx231xx_card_setup(struct cx231xx *dev);
extern struct cx231xx_board cx231xx_boards[];
extern struct usb_device_id cx231xx_id_table[];
int cx231xx_tuner_callback(void *ptr, int component, int command, int arg);

/* cx23885-417.c                                               */
extern int cx231xx_417_register(struct cx231xx *dev);
extern void cx231xx_417_unregister(struct cx231xx *dev);

/* cx23885-input.c                                             */

#if defined(CONFIG_VIDEO_CX231XX_RC)
int cx231xx_ir_init(struct cx231xx *dev);
void cx231xx_ir_exit(struct cx231xx *dev);
#else
static inline int cx231xx_ir_init(struct cx231xx *dev)
{
        return 0;
}
static inline void cx231xx_ir_exit(struct cx231xx *dev) {}
#endif

static inline unsigned int norm_maxw(struct cx231xx *dev)
{
        if (dev->board.max_range_640_480)
                return 640;
        else
                return 720;
}

static inline unsigned int norm_maxh(struct cx231xx *dev)
{
        if (dev->board.max_range_640_480)
                return 480;
        else
                return (dev->norm & V4L2_STD_625_50) ? 576 : 480;
}
#endif