drivers/media/pci/cx23885/cx23885.h

   1 /*
   2  *  Driver for the Conexant CX23885 PCIe bridge
   3  *
   4  *  Copyright (c) 2006 Steven Toth <stoth@linuxtv.org>
   5  *
   6  *  This program is free software; you can redistribute it and/or modify
   7  *  it under the terms of the GNU General Public License as published by
   8  *  the Free Software Foundation; either version 2 of the License, or
   9  *  (at your option) any later version.
  10  *
  11  *  This program is distributed in the hope that it will be useful,
  12  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  *
  15  *  GNU General Public License for more details.
  16  *
  17  *  You should have received a copy of the GNU General Public License
  18  *  along with this program; if not, write to the Free Software
  19  *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  */
  21
  22 #include <linux/pci.h>
  23 #include <linux/i2c.h>
  24 #include <linux/kdev_t.h>
  25 #include <linux/slab.h>
  26
  27 #include <media/v4l2-device.h>
  28 #include <media/tuner.h>
  29 #include <media/tveeprom.h>
  30 #include <media/videobuf-dma-sg.h>
  31 #include <media/videobuf-dvb.h>
  32 #include <media/rc-core.h>
  33
  34 #include "btcx-risc.h"
  35 #include "cx23885-reg.h"
  36 #include "media/cx2341x.h"
  37
  38 #include <linux/mutex.h>
  39
  40 #define CX23885_VERSION "0.0.3"
  41
  42 #define UNSET (-1U)
  43
  44 #define CX23885_MAXBOARDS 8
  45
  46 /* Max number of inputs by card */
  47 #define MAX_CX23885_INPUT 8
  48 #define INPUT(nr) (&cx23885_boards[dev->board].input[nr])
  49 #define RESOURCE_OVERLAY       1
  50 #define RESOURCE_VIDEO         2
  51 #define RESOURCE_VBI           4
  52
  53 #define BUFFER_TIMEOUT     (HZ)  /* 0.5 seconds */
  54
  55 #define CX23885_BOARD_NOAUTO               UNSET
  56 #define CX23885_BOARD_UNKNOWN                  0
  57 #define CX23885_BOARD_HAUPPAUGE_HVR1800lp      1
  58 #define CX23885_BOARD_HAUPPAUGE_HVR1800        2
  59 #define CX23885_BOARD_HAUPPAUGE_HVR1250        3
  60 #define CX23885_BOARD_DVICO_FUSIONHDTV_5_EXP   4
  61 #define CX23885_BOARD_HAUPPAUGE_HVR1500Q       5
  62 #define CX23885_BOARD_HAUPPAUGE_HVR1500        6
  63 #define CX23885_BOARD_HAUPPAUGE_HVR1200        7
  64 #define CX23885_BOARD_HAUPPAUGE_HVR1700        8
  65 #define CX23885_BOARD_HAUPPAUGE_HVR1400        9
  66 #define CX23885_BOARD_DVICO_FUSIONHDTV_7_DUAL_EXP 10
  67 #define CX23885_BOARD_DVICO_FUSIONHDTV_DVB_T_DUAL_EXP 11
  68 #define CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H 12
  69 #define CX23885_BOARD_COMPRO_VIDEOMATE_E650F   13
  70 #define CX23885_BOARD_TBS_6920                 14
  71 #define CX23885_BOARD_TEVII_S470               15
  72 #define CX23885_BOARD_DVBWORLD_2005            16
  73 #define CX23885_BOARD_NETUP_DUAL_DVBS2_CI      17
  74 #define CX23885_BOARD_HAUPPAUGE_HVR1270        18
  75 #define CX23885_BOARD_HAUPPAUGE_HVR1275        19
  76 #define CX23885_BOARD_HAUPPAUGE_HVR1255        20
  77 #define CX23885_BOARD_HAUPPAUGE_HVR1210        21
  78 #define CX23885_BOARD_MYGICA_X8506             22
  79 #define CX23885_BOARD_MAGICPRO_PROHDTVE2       23
  80 #define CX23885_BOARD_HAUPPAUGE_HVR1850        24
  81 #define CX23885_BOARD_COMPRO_VIDEOMATE_E800    25
  82 #define CX23885_BOARD_HAUPPAUGE_HVR1290        26
  83 #define CX23885_BOARD_MYGICA_X8558PRO          27
  84 #define CX23885_BOARD_LEADTEK_WINFAST_PXTV1200 28
  85 #define CX23885_BOARD_GOTVIEW_X5_3D_HYBRID     29
  86 #define CX23885_BOARD_NETUP_DUAL_DVB_T_C_CI_RF 30
  87 #define CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H_XC4000 31
  88 #define CX23885_BOARD_MPX885                   32
  89 #define CX23885_BOARD_MYGICA_X8507             33
  90 #define CX23885_BOARD_TERRATEC_CINERGY_T_PCIE_DUAL 34
  91 #define CX23885_BOARD_TEVII_S471               35
  92 #define CX23885_BOARD_HAUPPAUGE_HVR1255_22111  36
  93 #define CX23885_BOARD_PROF_8000                37
  94 #define CX23885_BOARD_HAUPPAUGE_HVR4400        38
  95 #define CX23885_BOARD_AVERMEDIA_HC81R          39
  96
  97 #define GPIO_0 0x00000001
  98 #define GPIO_1 0x00000002
  99 #define GPIO_2 0x00000004
 100 #define GPIO_3 0x00000008
 101 #define GPIO_4 0x00000010
 102 #define GPIO_5 0x00000020
 103 #define GPIO_6 0x00000040
 104 #define GPIO_7 0x00000080
 105 #define GPIO_8 0x00000100
 106 #define GPIO_9 0x00000200
 107 #define GPIO_10 0x00000400
 108 #define GPIO_11 0x00000800
 109 #define GPIO_12 0x00001000
 110 #define GPIO_13 0x00002000
 111 #define GPIO_14 0x00004000
 112 #define GPIO_15 0x00008000
 113
 114 /* Currently unsupported by the driver: PAL/H, NTSC/Kr, SECAM B/G/H/LC */
 115 #define CX23885_NORMS (\
 116         V4L2_STD_NTSC_M |  V4L2_STD_NTSC_M_JP |  V4L2_STD_NTSC_443 | \
 117         V4L2_STD_PAL_BG |  V4L2_STD_PAL_DK    |  V4L2_STD_PAL_I    | \
 118         V4L2_STD_PAL_M  |  V4L2_STD_PAL_N     |  V4L2_STD_PAL_Nc   | \
 119         V4L2_STD_PAL_60 |  V4L2_STD_SECAM_L   |  V4L2_STD_SECAM_DK)
 120
 121 struct cx23885_fmt {
 122         char  *name;
 123         u32   fourcc;          /* v4l2 format id */
 124         int   depth;
 125         int   flags;
 126         u32   cxformat;
 127 };
 128
 129 struct cx23885_ctrl {
 130         struct v4l2_queryctrl v;
 131         u32                   off;
 132         u32                   reg;
 133         u32                   mask;
 134         u32                   shift;
 135 };
 136
 137 struct cx23885_tvnorm {
 138         char            *name;
 139         v4l2_std_id     id;
 140         u32             cxiformat;
 141         u32             cxoformat;
 142 };
 143
 144 struct cx23885_fh {
 145         struct cx23885_dev         *dev;
 146         enum v4l2_buf_type         type;
 147         int                        radio;
 148         u32                        resources;
 149
 150         /* video overlay */
 151         struct v4l2_window         win;
 152         struct v4l2_clip           *clips;
 153         unsigned int               nclips;
 154
 155         /* video capture */
 156         struct cx23885_fmt         *fmt;
 157         unsigned int               width, height;
 158
 159         /* vbi capture */
 160         struct videobuf_queue      vidq;
 161         struct videobuf_queue      vbiq;
 162
 163         /* MPEG Encoder specifics ONLY */
 164         struct videobuf_queue      mpegq;
 165         atomic_t                   v4l_reading;
 166 };
 167
 168 enum cx23885_itype {
 169         CX23885_VMUX_COMPOSITE1 = 1,
 170         CX23885_VMUX_COMPOSITE2,
 171         CX23885_VMUX_COMPOSITE3,
 172         CX23885_VMUX_COMPOSITE4,
 173         CX23885_VMUX_SVIDEO,
 174         CX23885_VMUX_COMPONENT,
 175         CX23885_VMUX_TELEVISION,
 176         CX23885_VMUX_CABLE,
 177         CX23885_VMUX_DVB,
 178         CX23885_VMUX_DEBUG,
 179         CX23885_RADIO,
 180 };
 181
 182 enum cx23885_src_sel_type {
 183         CX23885_SRC_SEL_EXT_656_VIDEO = 0,
 184         CX23885_SRC_SEL_PARALLEL_MPEG_VIDEO
 185 };
 186
 187 /* buffer for one video frame */
 188 struct cx23885_buffer {
 189         /* common v4l buffer stuff -- must be first */
 190         struct videobuf_buffer vb;
 191
 192         /* cx23885 specific */
 193         unsigned int           bpl;
 194         struct btcx_riscmem    risc;
 195         struct cx23885_fmt     *fmt;
 196         u32                    count;
 197 };
 198
 199 struct cx23885_input {
 200         enum cx23885_itype type;
 201         unsigned int    vmux;
 202         unsigned int    amux;
 203         u32             gpio0, gpio1, gpio2, gpio3;
 204 };
 205
 206 typedef enum {
 207         CX23885_MPEG_UNDEFINED = 0,
 208         CX23885_MPEG_DVB,
 209         CX23885_ANALOG_VIDEO,
 210         CX23885_MPEG_ENCODER,
 211 } port_t;
 212
 213 struct cx23885_board {
 214         char                    *name;
 215         port_t                  porta, portb, portc;
 216         int             num_fds_portb, num_fds_portc;
 217         unsigned int            tuner_type;
 218         unsigned int            radio_type;
 219         unsigned char           tuner_addr;
 220         unsigned char           radio_addr;
 221         unsigned int            tuner_bus;
 222
 223         /* Vendors can and do run the PCIe bridge at different
 224          * clock rates, driven physically by crystals on the PCBs.
 225          * The core has to accommodate this. This allows the user
 226          * to add new boards with new frequencys. The value is
 227          * expressed in Hz.
 228          *
 229          * The core framework will default this value based on
 230          * current designs, but it can vary.
 231          */
 232         u32                     clk_freq;
 233         struct cx23885_input    input[MAX_CX23885_INPUT];
 234         int                     ci_type; /* for NetUP */
 235         /* Force bottom field first during DMA (888 workaround) */
 236         u32                     force_bff;
 237 };
 238
 239 struct cx23885_subid {
 240         u16     subvendor;
 241         u16     subdevice;
 242         u32     card;
 243 };
 244
 245 struct cx23885_i2c {
 246         struct cx23885_dev *dev;
 247
 248         int                        nr;
 249
 250         /* i2c i/o */
 251         struct i2c_adapter         i2c_adap;
 252         struct i2c_client          i2c_client;
 253         u32                        i2c_rc;
 254
 255         /* 885 registers used for raw addess */
 256         u32                        i2c_period;
 257         u32                        reg_ctrl;
 258         u32                        reg_stat;
 259         u32                        reg_addr;
 260         u32                        reg_rdata;
 261         u32                        reg_wdata;
 262 };
 263
 264 struct cx23885_dmaqueue {
 265         struct list_head       active;
 266         struct list_head       queued;
 267         struct timer_list      timeout;
 268         struct btcx_riscmem    stopper;
 269         u32                    count;
 270 };
 271
 272 struct cx23885_tsport {
 273         struct cx23885_dev *dev;
 274
 275         int                        nr;
 276         int                        sram_chno;
 277
 278         struct videobuf_dvb_frontends frontends;
 279
 280         /* dma queues */
 281         struct cx23885_dmaqueue    mpegq;
 282         u32                        ts_packet_size;
 283         u32                        ts_packet_count;
 284
 285         int                        width;
 286         int                        height;
 287
 288         spinlock_t                 slock;
 289
 290         /* registers */
 291         u32                        reg_gpcnt;
 292         u32                        reg_gpcnt_ctl;
 293         u32                        reg_dma_ctl;
 294         u32                        reg_lngth;
 295         u32                        reg_hw_sop_ctrl;
 296         u32                        reg_gen_ctrl;
 297         u32                        reg_bd_pkt_status;
 298         u32                        reg_sop_status;
 299         u32                        reg_fifo_ovfl_stat;
 300         u32                        reg_vld_misc;
 301         u32                        reg_ts_clk_en;
 302         u32                        reg_ts_int_msk;
 303         u32                        reg_ts_int_stat;
 304         u32                        reg_src_sel;
 305
 306         /* Default register vals */
 307         int                        pci_irqmask;
 308         u32                        dma_ctl_val;
 309         u32                        ts_int_msk_val;
 310         u32                        gen_ctrl_val;
 311         u32                        ts_clk_en_val;
 312         u32                        src_sel_val;
 313         u32                        vld_misc_val;
 314         u32                        hw_sop_ctrl_val;
 315
 316         /* Allow a single tsport to have multiple frontends */
 317         u32                        num_frontends;
 318         void                (*gate_ctrl)(struct cx23885_tsport *port, int open);
 319         void                       *port_priv;
 320
 321         /* Workaround for a temp dvb_frontend that the tuner can attached to */
 322         struct dvb_frontend analog_fe;
 323 };
 324
 325 struct cx23885_kernel_ir {
 326         struct cx23885_dev      *cx;
 327         char                    *name;
 328         char                    *phys;
 329
 330         struct rc_dev           *rc;
 331 };
 332
 333 struct cx23885_audio_buffer {
 334         unsigned int            bpl;
 335         struct btcx_riscmem     risc;
 336         struct videobuf_dmabuf  dma;
 337 };
 338
 339 struct cx23885_audio_dev {
 340         struct cx23885_dev      *dev;
 341
 342         struct pci_dev          *pci;
 343
 344         struct snd_card         *card;
 345
 346         spinlock_t              lock;
 347
 348         atomic_t                count;
 349
 350         unsigned int            dma_size;
 351         unsigned int            period_size;
 352         unsigned int            num_periods;
 353
 354         struct videobuf_dmabuf  *dma_risc;
 355
 356         struct cx23885_audio_buffer   *buf;
 357
 358         struct snd_pcm_substream *substream;
 359 };
 360
 361 struct cx23885_dev {
 362         atomic_t                   refcount;
 363         struct v4l2_device         v4l2_dev;
 364
 365         /* pci stuff */
 366         struct pci_dev             *pci;
 367         unsigned char              pci_rev, pci_lat;
 368         int                        pci_bus, pci_slot;
 369         u32                        __iomem *lmmio;
 370         u8                         __iomem *bmmio;
 371         int                        pci_irqmask;
 372         spinlock_t                 pci_irqmask_lock; /* protects mask reg too */
 373         int                        hwrevision;
 374
 375         /* This valud is board specific and is used to configure the
 376          * AV core so we see nice clean and stable video and audio. */
 377         u32                        clk_freq;
 378
 379         /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
 380         struct cx23885_i2c         i2c_bus[3];
 381
 382         int                        nr;
 383         struct mutex               lock;
 384         struct mutex               gpio_lock;
 385
 386         /* board details */
 387         unsigned int               board;
 388         char                       name[32];
 389
 390         struct cx23885_tsport      ts1, ts2;
 391
 392         /* sram configuration */
 393         struct sram_channel        *sram_channels;
 394
 395         enum {
 396                 CX23885_BRIDGE_UNDEFINED = 0,
 397                 CX23885_BRIDGE_885 = 885,
 398                 CX23885_BRIDGE_887 = 887,
 399                 CX23885_BRIDGE_888 = 888,
 400         } bridge;
 401
 402         /* Analog video */
 403         u32                        resources;
 404         unsigned int               input;
 405         unsigned int               audinput; /* Selectable audio input */
 406         u32                        tvaudio;
 407         v4l2_std_id                tvnorm;
 408         unsigned int               tuner_type;
 409         unsigned char              tuner_addr;
 410         unsigned int               tuner_bus;
 411         unsigned int               radio_type;
 412         unsigned char              radio_addr;
 413         unsigned int               has_radio;
 414         struct v4l2_subdev         *sd_cx25840;
 415         struct work_struct         cx25840_work;
 416
 417         /* Infrared */
 418         struct v4l2_subdev         *sd_ir;
 419         struct work_struct         ir_rx_work;
 420         unsigned long              ir_rx_notifications;
 421         struct work_struct         ir_tx_work;
 422         unsigned long              ir_tx_notifications;
 423
 424         struct cx23885_kernel_ir   *kernel_ir;
 425         atomic_t                   ir_input_stopping;
 426
 427         /* V4l */
 428         u32                        freq;
 429         struct video_device        *video_dev;
 430         struct video_device        *vbi_dev;
 431         struct video_device        *radio_dev;
 432
 433         struct cx23885_dmaqueue    vidq;
 434         struct cx23885_dmaqueue    vbiq;
 435         spinlock_t                 slock;
 436
 437         /* MPEG Encoder ONLY settings */
 438         u32                        cx23417_mailbox;
 439         struct cx2341x_mpeg_params mpeg_params;
 440         struct video_device        *v4l_device;
 441         atomic_t                   v4l_reader_count;
 442         struct cx23885_tvnorm      encodernorm;
 443
 444         /* Analog raw audio */
 445         struct cx23885_audio_dev   *audio_dev;
 446
 447 };
 448
 449 static inline struct cx23885_dev *to_cx23885(struct v4l2_device *v4l2_dev)
 450 {
 451         return container_of(v4l2_dev, struct cx23885_dev, v4l2_dev);
 452 }
 453
 454 #define call_all(dev, o, f, args...) \
 455         v4l2_device_call_all(&dev->v4l2_dev, 0, o, f, ##args)
 456
 457 #define CX23885_HW_888_IR  (1 << 0)
 458 #define CX23885_HW_AV_CORE (1 << 1)
 459
 460 #define call_hw(dev, grpid, o, f, args...) \
 461         v4l2_device_call_all(&dev->v4l2_dev, grpid, o, f, ##args)
 462
 463 extern struct v4l2_subdev *cx23885_find_hw(struct cx23885_dev *dev, u32 hw);
 464
 465 #define SRAM_CH01  0 /* Video A */
 466 #define SRAM_CH02  1 /* VBI A */
 467 #define SRAM_CH03  2 /* Video B */
 468 #define SRAM_CH04  3 /* Transport via B */
 469 #define SRAM_CH05  4 /* VBI B */
 470 #define SRAM_CH06  5 /* Video C */
 471 #define SRAM_CH07  6 /* Transport via C */
 472 #define SRAM_CH08  7 /* Audio Internal A */
 473 #define SRAM_CH09  8 /* Audio Internal B */
 474 #define SRAM_CH10  9 /* Audio External */
 475 #define SRAM_CH11 10 /* COMB_3D_N */
 476 #define SRAM_CH12 11 /* Comb 3D N1 */
 477 #define SRAM_CH13 12 /* Comb 3D N2 */
 478 #define SRAM_CH14 13 /* MOE Vid */
 479 #define SRAM_CH15 14 /* MOE RSLT */
 480
 481 struct sram_channel {
 482         char *name;
 483         u32  cmds_start;
 484         u32  ctrl_start;
 485         u32  cdt;
 486         u32  fifo_start;
 487         u32  fifo_size;
 488         u32  ptr1_reg;
 489         u32  ptr2_reg;
 490         u32  cnt1_reg;
 491         u32  cnt2_reg;
 492         u32  jumponly;
 493 };
 494
 495 /* ----------------------------------------------------------- */
 496
 497 #define cx_read(reg)             readl(dev->lmmio + ((reg)>>2))
 498 #define cx_write(reg, value)     writel((value), dev->lmmio + ((reg)>>2))
 499
 500 #define cx_andor(reg, mask, value) \
 501   writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\
 502   ((value) & (mask)), dev->lmmio+((reg)>>2))
 503
 504 #define cx_set(reg, bit)          cx_andor((reg), (bit), (bit))
 505 #define cx_clear(reg, bit)        cx_andor((reg), (bit), 0)
 506
 507 /* ----------------------------------------------------------- */
 508 /* cx23885-core.c                                              */
 509
 510 extern int cx23885_sram_channel_setup(struct cx23885_dev *dev,
 511         struct sram_channel *ch,
 512         unsigned int bpl, u32 risc);
 513
 514 extern void cx23885_sram_channel_dump(struct cx23885_dev *dev,
 515         struct sram_channel *ch);
 516
 517 extern int cx23885_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
 518         u32 reg, u32 mask, u32 value);
 519
 520 extern int cx23885_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
 521         struct scatterlist *sglist,
 522         unsigned int top_offset, unsigned int bottom_offset,
 523         unsigned int bpl, unsigned int padding, unsigned int lines);
 524
 525 extern int cx23885_risc_vbibuffer(struct pci_dev *pci,
 526         struct btcx_riscmem *risc, struct scatterlist *sglist,
 527         unsigned int top_offset, unsigned int bottom_offset,
 528         unsigned int bpl, unsigned int padding, unsigned int lines);
 529
 530 void cx23885_cancel_buffers(struct cx23885_tsport *port);
 531
 532 extern int cx23885_restart_queue(struct cx23885_tsport *port,
 533                                 struct cx23885_dmaqueue *q);
 534
 535 extern void cx23885_wakeup(struct cx23885_tsport *port,
 536                            struct cx23885_dmaqueue *q, u32 count);
 537
 538 extern void cx23885_gpio_set(struct cx23885_dev *dev, u32 mask);
 539 extern void cx23885_gpio_clear(struct cx23885_dev *dev, u32 mask);
 540 extern u32 cx23885_gpio_get(struct cx23885_dev *dev, u32 mask);
 541 extern void cx23885_gpio_enable(struct cx23885_dev *dev, u32 mask,
 542         int asoutput);
 543
 544 extern void cx23885_irq_add_enable(struct cx23885_dev *dev, u32 mask);
 545 extern void cx23885_irq_enable(struct cx23885_dev *dev, u32 mask);
 546 extern void cx23885_irq_disable(struct cx23885_dev *dev, u32 mask);
 547 extern void cx23885_irq_remove(struct cx23885_dev *dev, u32 mask);
 548
 549 /* ----------------------------------------------------------- */
 550 /* cx23885-cards.c                                             */
 551 extern struct cx23885_board cx23885_boards[];
 552 extern const unsigned int cx23885_bcount;
 553
 554 extern struct cx23885_subid cx23885_subids[];
 555 extern const unsigned int cx23885_idcount;
 556
 557 extern int cx23885_tuner_callback(void *priv, int component,
 558         int command, int arg);
 559 extern void cx23885_card_list(struct cx23885_dev *dev);
 560 extern int  cx23885_ir_init(struct cx23885_dev *dev);
 561 extern void cx23885_ir_pci_int_enable(struct cx23885_dev *dev);
 562 extern void cx23885_ir_fini(struct cx23885_dev *dev);
 563 extern void cx23885_gpio_setup(struct cx23885_dev *dev);
 564 extern void cx23885_card_setup(struct cx23885_dev *dev);
 565 extern void cx23885_card_setup_pre_i2c(struct cx23885_dev *dev);
 566
 567 extern int cx23885_dvb_register(struct cx23885_tsport *port);
 568 extern int cx23885_dvb_unregister(struct cx23885_tsport *port);
 569
 570 extern int cx23885_buf_prepare(struct videobuf_queue *q,
 571                                struct cx23885_tsport *port,
 572                                struct cx23885_buffer *buf,
 573                                enum v4l2_field field);
 574 extern void cx23885_buf_queue(struct cx23885_tsport *port,
 575                               struct cx23885_buffer *buf);
 576 extern void cx23885_free_buffer(struct videobuf_queue *q,
 577                                 struct cx23885_buffer *buf);
 578
 579 /* ----------------------------------------------------------- */
 580 /* cx23885-video.c                                             */
 581 /* Video */
 582 extern int cx23885_video_register(struct cx23885_dev *dev);
 583 extern void cx23885_video_unregister(struct cx23885_dev *dev);
 584 extern int cx23885_video_irq(struct cx23885_dev *dev, u32 status);
 585 extern void cx23885_video_wakeup(struct cx23885_dev *dev,
 586         struct cx23885_dmaqueue *q, u32 count);
 587 int cx23885_enum_input(struct cx23885_dev *dev, struct v4l2_input *i);
 588 int cx23885_set_input(struct file *file, void *priv, unsigned int i);
 589 int cx23885_get_input(struct file *file, void *priv, unsigned int *i);
 590 int cx23885_set_frequency(struct file *file, void *priv, const struct v4l2_frequency *f);
 591 int cx23885_set_control(struct cx23885_dev *dev, struct v4l2_control *ctl);
 592 int cx23885_get_control(struct cx23885_dev *dev, struct v4l2_control *ctl);
 593 int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm);
 594
 595 /* ----------------------------------------------------------- */
 596 /* cx23885-vbi.c                                               */
 597 extern int cx23885_vbi_fmt(struct file *file, void *priv,
 598         struct v4l2_format *f);
 599 extern void cx23885_vbi_timeout(unsigned long data);
 600 extern struct videobuf_queue_ops cx23885_vbi_qops;
 601 extern int cx23885_restart_vbi_queue(struct cx23885_dev *dev,
 602         struct cx23885_dmaqueue *q);
 603 extern int cx23885_vbi_irq(struct cx23885_dev *dev, u32 status);
 604
 605 /* cx23885-i2c.c                                                */
 606 extern int cx23885_i2c_register(struct cx23885_i2c *bus);
 607 extern int cx23885_i2c_unregister(struct cx23885_i2c *bus);
 608 extern void cx23885_av_clk(struct cx23885_dev *dev, int enable);
 609
 610 /* ----------------------------------------------------------- */
 611 /* cx23885-417.c                                               */
 612 extern int cx23885_417_register(struct cx23885_dev *dev);
 613 extern void cx23885_417_unregister(struct cx23885_dev *dev);
 614 extern int cx23885_irq_417(struct cx23885_dev *dev, u32 status);
 615 extern void cx23885_417_check_encoder(struct cx23885_dev *dev);
 616 extern void cx23885_mc417_init(struct cx23885_dev *dev);
 617 extern int mc417_memory_read(struct cx23885_dev *dev, u32 address, u32 *value);
 618 extern int mc417_memory_write(struct cx23885_dev *dev, u32 address, u32 value);
 619 extern int mc417_register_read(struct cx23885_dev *dev,
 620                                 u16 address, u32 *value);
 621 extern int mc417_register_write(struct cx23885_dev *dev,
 622                                 u16 address, u32 value);
 623 extern void mc417_gpio_set(struct cx23885_dev *dev, u32 mask);
 624 extern void mc417_gpio_clear(struct cx23885_dev *dev, u32 mask);
 625 extern void mc417_gpio_enable(struct cx23885_dev *dev, u32 mask, int asoutput);
 626
 627 /* ----------------------------------------------------------- */
 628 /* cx23885-alsa.c                                             */
 629 extern struct cx23885_audio_dev *cx23885_audio_register(
 630                                         struct cx23885_dev *dev);
 631 extern void cx23885_audio_unregister(struct cx23885_dev *dev);
 632 extern int cx23885_audio_irq(struct cx23885_dev *dev, u32 status, u32 mask);
 633 extern int cx23885_risc_databuffer(struct pci_dev *pci,
 634                                    struct btcx_riscmem *risc,
 635                                    struct scatterlist *sglist,
 636                                    unsigned int bpl,
 637                                    unsigned int lines,
 638                                    unsigned int lpi);
 639
 640 /* ----------------------------------------------------------- */
 641 /* tv norms                                                    */
 642
 643 static inline unsigned int norm_maxw(v4l2_std_id norm)
 644 {
 645         return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 720 : 768;
 646 }
 647
 648 static inline unsigned int norm_maxh(v4l2_std_id norm)
 649 {
 650         return (norm & V4L2_STD_625_50) ? 576 : 480;
 651 }
 652
 653 static inline unsigned int norm_swidth(v4l2_std_id norm)
 654 {
 655         return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 754 : 922;
 656 }