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   1 /*
   2  *  Driver for the Conexant CX23885 PCIe bridge
   3  *
   4  *  Copyright (c) 2006 Steven Toth <stoth@hauppauge.com>
   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/i2c-algo-bit.h>
  25 #include <linux/kdev_t.h>
  26
  27 #include <media/v4l2-common.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
  33 #include "btcx-risc.h"
  34 #include "cx23885-reg.h"
  35
  36 #include <linux/version.h>
  37 #include <linux/mutex.h>
  38
  39 #define CX23885_VERSION_CODE KERNEL_VERSION(0,0,1)
  40
  41 #define UNSET (-1U)
  42
  43 #define CX23885_MAXBOARDS 8
  44
  45 /* Max number of inputs by card */
  46 #define MAX_CX23885_INPUT 8
  47 #define INPUT(nr) (&cx23885_boards[dev->board].input[nr])
  48 #define RESOURCE_OVERLAY       1
  49 #define RESOURCE_VIDEO         2
  50 #define RESOURCE_VBI           4
  51
  52 #define BUFFER_TIMEOUT     (HZ)  /* 0.5 seconds */
  53
  54 #define CX23885_BOARD_NOAUTO               UNSET
  55 #define CX23885_BOARD_UNKNOWN                  0
  56 #define CX23885_BOARD_HAUPPAUGE_HVR1800lp      1
  57 #define CX23885_BOARD_HAUPPAUGE_HVR1800        2
  58 #define CX23885_BOARD_HAUPPAUGE_HVR1250        3
  59 #define CX23885_BOARD_DVICO_FUSIONHDTV_5_EXP   4
  60 #define CX23885_BOARD_HAUPPAUGE_HVR1500Q       5
  61 #define CX23885_BOARD_HAUPPAUGE_HVR1500        6
  62 #define CX23885_BOARD_HAUPPAUGE_HVR1200        7
  63 #define CX23885_BOARD_HAUPPAUGE_HVR1700        8
  64
  65 /* Currently unsupported by the driver: PAL/H, NTSC/Kr, SECAM B/G/H/LC */
  66 #define CX23885_NORMS (\
  67         V4L2_STD_NTSC_M |  V4L2_STD_NTSC_M_JP |  V4L2_STD_NTSC_443 | \
  68         V4L2_STD_PAL_BG |  V4L2_STD_PAL_DK    |  V4L2_STD_PAL_I    | \
  69         V4L2_STD_PAL_M  |  V4L2_STD_PAL_N     |  V4L2_STD_PAL_Nc   | \
  70         V4L2_STD_PAL_60 |  V4L2_STD_SECAM_L   |  V4L2_STD_SECAM_DK)
  71
  72 struct cx23885_fmt {
  73         char  *name;
  74         u32   fourcc;          /* v4l2 format id */
  75         int   depth;
  76         int   flags;
  77         u32   cxformat;
  78 };
  79
  80 struct cx23885_ctrl {
  81         struct v4l2_queryctrl v;
  82         u32                   off;
  83         u32                   reg;
  84         u32                   mask;
  85         u32                   shift;
  86 };
  87
  88 struct cx23885_tvnorm {
  89         char            *name;
  90         v4l2_std_id     id;
  91         u32             cxiformat;
  92         u32             cxoformat;
  93 };
  94
  95 struct cx23885_fh {
  96         struct cx23885_dev         *dev;
  97         enum v4l2_buf_type         type;
  98         int                        radio;
  99         u32                        resources;
 100
 101         /* video overlay */
 102         struct v4l2_window         win;
 103         struct v4l2_clip           *clips;
 104         unsigned int               nclips;
 105
 106         /* video capture */
 107         struct cx23885_fmt         *fmt;
 108         unsigned int               width, height;
 109
 110         /* vbi capture */
 111         struct videobuf_queue      vidq;
 112         struct videobuf_queue      vbiq;
 113
 114         /* MPEG Encoder specifics ONLY */
 115         struct videobuf_queue      mpegq;
 116         atomic_t                   v4l_reading;
 117 };
 118
 119 enum cx23885_itype {
 120         CX23885_VMUX_COMPOSITE1 = 1,
 121         CX23885_VMUX_COMPOSITE2,
 122         CX23885_VMUX_COMPOSITE3,
 123         CX23885_VMUX_COMPOSITE4,
 124         CX23885_VMUX_SVIDEO,
 125         CX23885_VMUX_TELEVISION,
 126         CX23885_VMUX_CABLE,
 127         CX23885_VMUX_DVB,
 128         CX23885_VMUX_DEBUG,
 129         CX23885_RADIO,
 130 };
 131
 132 enum cx23885_src_sel_type {
 133         CX23885_SRC_SEL_EXT_656_VIDEO = 0,
 134         CX23885_SRC_SEL_PARALLEL_MPEG_VIDEO
 135 };
 136
 137 /* buffer for one video frame */
 138 struct cx23885_buffer {
 139         /* common v4l buffer stuff -- must be first */
 140         struct videobuf_buffer vb;
 141
 142         /* cx23885 specific */
 143         unsigned int           bpl;
 144         struct btcx_riscmem    risc;
 145         struct cx23885_fmt     *fmt;
 146         u32                    count;
 147 };
 148
 149 struct cx23885_input {
 150         enum cx23885_itype type;
 151         unsigned int    vmux;
 152         u32             gpio0, gpio1, gpio2, gpio3;
 153 };
 154
 155 typedef enum {
 156         CX23885_MPEG_UNDEFINED = 0,
 157         CX23885_MPEG_DVB,
 158         CX23885_ANALOG_VIDEO,
 159 } port_t;
 160
 161 struct cx23885_board {
 162         char                    *name;
 163         port_t                  porta, portb, portc;
 164         unsigned int            tuner_type;
 165         unsigned int            radio_type;
 166         unsigned char           tuner_addr;
 167         unsigned char           radio_addr;
 168
 169         /* Vendors can and do run the PCIe bridge at different
 170          * clock rates, driven physically by crystals on the PCBs.
 171          * The core has to accomodate this. This allows the user
 172          * to add new boards with new frequencys. The value is
 173          * expressed in Hz.
 174          *
 175          * The core framework will default this value based on
 176          * current designs, but it can vary.
 177          */
 178         u32                     clk_freq;
 179         struct cx23885_input    input[MAX_CX23885_INPUT];
 180 };
 181
 182 struct cx23885_subid {
 183         u16     subvendor;
 184         u16     subdevice;
 185         u32     card;
 186 };
 187
 188 struct cx23885_i2c {
 189         struct cx23885_dev *dev;
 190
 191         int                        nr;
 192
 193         /* i2c i/o */
 194         struct i2c_adapter         i2c_adap;
 195         struct i2c_algo_bit_data   i2c_algo;
 196         struct i2c_client          i2c_client;
 197         u32                        i2c_rc;
 198
 199         /* 885 registers used for raw addess */
 200         u32                        i2c_period;
 201         u32                        reg_ctrl;
 202         u32                        reg_stat;
 203         u32                        reg_addr;
 204         u32                        reg_rdata;
 205         u32                        reg_wdata;
 206 };
 207
 208 struct cx23885_dmaqueue {
 209         struct list_head       active;
 210         struct list_head       queued;
 211         struct timer_list      timeout;
 212         struct btcx_riscmem    stopper;
 213         u32                    count;
 214 };
 215
 216 struct cx23885_tsport {
 217         struct cx23885_dev *dev;
 218
 219         int                        nr;
 220         int                        sram_chno;
 221
 222         struct videobuf_dvb        dvb;
 223
 224         /* dma queues */
 225         struct cx23885_dmaqueue    mpegq;
 226         u32                        ts_packet_size;
 227         u32                        ts_packet_count;
 228
 229         int                        width;
 230         int                        height;
 231
 232         spinlock_t                 slock;
 233
 234         /* registers */
 235         u32                        reg_gpcnt;
 236         u32                        reg_gpcnt_ctl;
 237         u32                        reg_dma_ctl;
 238         u32                        reg_lngth;
 239         u32                        reg_hw_sop_ctrl;
 240         u32                        reg_gen_ctrl;
 241         u32                        reg_bd_pkt_status;
 242         u32                        reg_sop_status;
 243         u32                        reg_fifo_ovfl_stat;
 244         u32                        reg_vld_misc;
 245         u32                        reg_ts_clk_en;
 246         u32                        reg_ts_int_msk;
 247         u32                        reg_ts_int_stat;
 248         u32                        reg_src_sel;
 249
 250         /* Default register vals */
 251         int                        pci_irqmask;
 252         u32                        dma_ctl_val;
 253         u32                        ts_int_msk_val;
 254         u32                        gen_ctrl_val;
 255         u32                        ts_clk_en_val;
 256         u32                        src_sel_val;
 257 };
 258
 259 struct cx23885_dev {
 260         struct list_head           devlist;
 261         atomic_t                   refcount;
 262
 263         /* pci stuff */
 264         struct pci_dev             *pci;
 265         unsigned char              pci_rev, pci_lat;
 266         int                        pci_bus, pci_slot;
 267         u32                        __iomem *lmmio;
 268         u8                         __iomem *bmmio;
 269         int                        pci_irqmask;
 270         int                        hwrevision;
 271
 272         /* This valud is board specific and is used to configure the
 273          * AV core so we see nice clean and stable video and audio. */
 274         u32                        clk_freq;
 275
 276         /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
 277         struct cx23885_i2c         i2c_bus[3];
 278
 279         int                        nr;
 280         struct mutex               lock;
 281
 282         /* board details */
 283         unsigned int               board;
 284         char                       name[32];
 285
 286         struct cx23885_tsport      ts1, ts2;
 287
 288         /* sram configuration */
 289         struct sram_channel        *sram_channels;
 290
 291         enum {
 292                 CX23885_BRIDGE_UNDEFINED = 0,
 293                 CX23885_BRIDGE_885 = 885,
 294                 CX23885_BRIDGE_887 = 887,
 295         } bridge;
 296
 297         /* Analog video */
 298         u32                        resources;
 299         unsigned int               input;
 300         u32                        tvaudio;
 301         v4l2_std_id                tvnorm;
 302         unsigned int               tuner_type;
 303         unsigned char              tuner_addr;
 304         unsigned int               radio_type;
 305         unsigned char              radio_addr;
 306         unsigned int               has_radio;
 307
 308         /* V4l */
 309         u32                        freq;
 310         struct video_device        *video_dev;
 311         struct video_device        *vbi_dev;
 312         struct video_device        *radio_dev;
 313
 314         struct cx23885_dmaqueue    vidq;
 315         struct cx23885_dmaqueue    vbiq;
 316         spinlock_t                 slock;
 317 };
 318
 319 extern struct list_head cx23885_devlist;
 320
 321 #define SRAM_CH01  0 /* Video A */
 322 #define SRAM_CH02  1 /* VBI A */
 323 #define SRAM_CH03  2 /* Video B */
 324 #define SRAM_CH04  3 /* Transport via B */
 325 #define SRAM_CH05  4 /* VBI B */
 326 #define SRAM_CH06  5 /* Video C */
 327 #define SRAM_CH07  6 /* Transport via C */
 328 #define SRAM_CH08  7 /* Audio Internal A */
 329 #define SRAM_CH09  8 /* Audio Internal B */
 330 #define SRAM_CH10  9 /* Audio External */
 331 #define SRAM_CH11 10 /* COMB_3D_N */
 332 #define SRAM_CH12 11 /* Comb 3D N1 */
 333 #define SRAM_CH13 12 /* Comb 3D N2 */
 334 #define SRAM_CH14 13 /* MOE Vid */
 335 #define SRAM_CH15 14 /* MOE RSLT */
 336
 337 struct sram_channel {
 338         char *name;
 339         u32  cmds_start;
 340         u32  ctrl_start;
 341         u32  cdt;
 342         u32  fifo_start;;
 343         u32  fifo_size;
 344         u32  ptr1_reg;
 345         u32  ptr2_reg;
 346         u32  cnt1_reg;
 347         u32  cnt2_reg;
 348         u32  jumponly;
 349 };
 350
 351 /* ----------------------------------------------------------- */
 352
 353 #define cx_read(reg)             readl(dev->lmmio + ((reg)>>2))
 354 #define cx_write(reg,value)      writel((value), dev->lmmio + ((reg)>>2))
 355
 356 #define cx_andor(reg,mask,value) \
 357   writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\
 358   ((value) & (mask)), dev->lmmio+((reg)>>2))
 359
 360 #define cx_set(reg,bit)          cx_andor((reg),(bit),(bit))
 361 #define cx_clear(reg,bit)        cx_andor((reg),(bit),0)
 362
 363 /* ----------------------------------------------------------- */
 364 /* cx23885-core.c                                              */
 365
 366 extern int cx23885_sram_channel_setup(struct cx23885_dev *dev,
 367         struct sram_channel *ch,
 368         unsigned int bpl, u32 risc);
 369
 370 extern void cx23885_sram_channel_dump(struct cx23885_dev *dev,
 371         struct sram_channel *ch);
 372
 373 extern int cx23885_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
 374         u32 reg, u32 mask, u32 value);
 375
 376 extern int cx23885_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
 377         struct scatterlist *sglist,
 378         unsigned int top_offset, unsigned int bottom_offset,
 379         unsigned int bpl, unsigned int padding, unsigned int lines);
 380
 381 void cx23885_cancel_buffers(struct cx23885_tsport *port);
 382
 383 extern int cx23885_restart_queue(struct cx23885_tsport *port,
 384                                 struct cx23885_dmaqueue *q);
 385
 386 extern void cx23885_wakeup(struct cx23885_tsport *port,
 387                            struct cx23885_dmaqueue *q, u32 count);
 388
 389
 390 /* ----------------------------------------------------------- */
 391 /* cx23885-cards.c                                             */
 392 extern struct cx23885_board cx23885_boards[];
 393 extern const unsigned int cx23885_bcount;
 394
 395 extern struct cx23885_subid cx23885_subids[];
 396 extern const unsigned int cx23885_idcount;
 397
 398 extern int cx23885_tuner_callback(void *priv, int command, int arg);
 399 extern void cx23885_card_list(struct cx23885_dev *dev);
 400 extern int  cx23885_ir_init(struct cx23885_dev *dev);
 401 extern void cx23885_gpio_setup(struct cx23885_dev *dev);
 402 extern void cx23885_card_setup(struct cx23885_dev *dev);
 403 extern void cx23885_card_setup_pre_i2c(struct cx23885_dev *dev);
 404
 405 extern int cx23885_dvb_register(struct cx23885_tsport *port);
 406 extern int cx23885_dvb_unregister(struct cx23885_tsport *port);
 407
 408 extern int cx23885_buf_prepare(struct videobuf_queue *q,
 409                                struct cx23885_tsport *port,
 410                                struct cx23885_buffer *buf,
 411                                enum v4l2_field field);
 412 extern void cx23885_buf_queue(struct cx23885_tsport *port,
 413                               struct cx23885_buffer *buf);
 414 extern void cx23885_free_buffer(struct videobuf_queue *q,
 415                                 struct cx23885_buffer *buf);
 416
 417 /* ----------------------------------------------------------- */
 418 /* cx23885-video.c                                             */
 419 /* Video */
 420 extern int cx23885_video_register(struct cx23885_dev *dev);
 421 extern void cx23885_video_unregister(struct cx23885_dev *dev);
 422 extern int cx23885_video_irq(struct cx23885_dev *dev, u32 status);
 423
 424 /* ----------------------------------------------------------- */
 425 /* cx23885-vbi.c                                               */
 426 extern int cx23885_vbi_fmt(struct file *file, void *priv,
 427         struct v4l2_format *f);
 428 extern void cx23885_vbi_timeout(unsigned long data);
 429 extern struct videobuf_queue_ops cx23885_vbi_qops;
 430
 431 /* cx23885-i2c.c                                                */
 432 extern int cx23885_i2c_register(struct cx23885_i2c *bus);
 433 extern int cx23885_i2c_unregister(struct cx23885_i2c *bus);
 434 extern void cx23885_call_i2c_clients(struct cx23885_i2c *bus, unsigned int cmd,
 435                                      void *arg);
 436
 437 /* ----------------------------------------------------------- */
 438 /* tv norms                                                    */
 439
 440 static inline unsigned int norm_maxw(v4l2_std_id norm)
 441 {
 442         return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 720 : 768;
 443 }
 444
 445 static inline unsigned int norm_maxh(v4l2_std_id norm)
 446 {
 447         return (norm & V4L2_STD_625_50) ? 576 : 480;
 448 }
 449
 450 static inline unsigned int norm_swidth(v4l2_std_id norm)
 451 {
 452         return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 754 : 922;
 453 }
 454
 455
 456 /*
 457  * Local variables:
 458  * c-basic-offset: 8
 459  * End:
 460  * kate: eol "unix"; indent-width 3; remove-trailing-space on; replace-trailing-space-save on; tab-width 8; replace-tabs off; space-indent off; mixed-indent off
 461  */