drivers/media/pci/sta2x11/sta2x11_vip.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * This is the driver for the STA2x11 Video Input Port.
   4  *
   5  * Copyright (C) 2012       ST Microelectronics
   6  *     author: Federico Vaga <federico.vaga@gmail.com>
   7  * Copyright (C) 2010       WindRiver Systems, Inc.
   8  *     authors: Andreas Kies <andreas.kies@windriver.com>
   9  *              Vlad Lungu   <vlad.lungu@windriver.com>
  10  */
  11
  12 #include <linux/types.h>
  13 #include <linux/kernel.h>
  14 #include <linux/module.h>
  15 #include <linux/init.h>
  16 #include <linux/videodev2.h>
  17 #include <linux/kmod.h>
  18 #include <linux/pci.h>
  19 #include <linux/interrupt.h>
  20 #include <linux/io.h>
  21 #include <linux/gpio/consumer.h>
  22 #include <linux/gpio.h>
  23 #include <linux/i2c.h>
  24 #include <linux/delay.h>
  25 #include <media/v4l2-common.h>
  26 #include <media/v4l2-device.h>
  27 #include <media/v4l2-ctrls.h>
  28 #include <media/v4l2-ioctl.h>
  29 #include <media/v4l2-fh.h>
  30 #include <media/v4l2-event.h>
  31 #include <media/videobuf2-dma-contig.h>
  32
  33 #include "sta2x11_vip.h"
  34
  35 #define DRV_VERSION "1.3"
  36
  37 #ifndef PCI_DEVICE_ID_STMICRO_VIP
  38 #define PCI_DEVICE_ID_STMICRO_VIP 0xCC0D
  39 #endif
  40
  41 #define MAX_FRAMES 4
  42
  43 /*Register offsets*/
  44 #define DVP_CTL         0x00
  45 #define DVP_TFO         0x04
  46 #define DVP_TFS         0x08
  47 #define DVP_BFO         0x0C
  48 #define DVP_BFS         0x10
  49 #define DVP_VTP         0x14
  50 #define DVP_VBP         0x18
  51 #define DVP_VMP         0x1C
  52 #define DVP_ITM         0x98
  53 #define DVP_ITS         0x9C
  54 #define DVP_STA         0xA0
  55 #define DVP_HLFLN       0xA8
  56 #define DVP_RGB         0xC0
  57 #define DVP_PKZ         0xF0
  58
  59 /*Register fields*/
  60 #define DVP_CTL_ENA     0x00000001
  61 #define DVP_CTL_RST     0x80000000
  62 #define DVP_CTL_DIS     (~0x00040001)
  63
  64 #define DVP_IT_VSB      0x00000008
  65 #define DVP_IT_VST      0x00000010
  66 #define DVP_IT_FIFO     0x00000020
  67
  68 #define DVP_HLFLN_SD    0x00000001
  69
  70 #define SAVE_COUNT 8
  71 #define AUX_COUNT 3
  72 #define IRQ_COUNT 1
  73
  74
  75 struct vip_buffer {
  76         struct vb2_v4l2_buffer vb;
  77         struct list_head        list;
  78         dma_addr_t              dma;
  79 };
  80 static inline struct vip_buffer *to_vip_buffer(struct vb2_v4l2_buffer *vb2)
  81 {
  82         return container_of(vb2, struct vip_buffer, vb);
  83 }
  84
  85 /**
  86  * struct sta2x11_vip - All internal data for one instance of device
  87  * @v4l2_dev: device registered in v4l layer
  88  * @video_dev: properties of our device
  89  * @pdev: PCI device
  90  * @adapter: contains I2C adapter information
  91  * @register_save_area: All relevant register are saved here during suspend
  92  * @decoder: contains information about video DAC
  93  * @ctrl_hdl: handler for control framework
  94  * @format: pixel format, fixed UYVY
  95  * @std: video standard (e.g. PAL/NTSC)
  96  * @input: input line for video signal ( 0 or 1 )
  97  * @disabled: Device is in power down state
  98  * @slock: for excluse access of registers
  99  * @vb_vidq: queue maintained by videobuf2 layer
 100  * @buffer_list: list of buffer in use
 101  * @sequence: sequence number of acquired buffer
 102  * @active: current active buffer
 103  * @lock: used in videobuf2 callback
 104  * @v4l_lock: serialize its video4linux ioctls
 105  * @tcount: Number of top frames
 106  * @bcount: Number of bottom frames
 107  * @overflow: Number of FIFO overflows
 108  * @iomem: hardware base address
 109  * @config: I2C and gpio config from platform
 110  *
 111  * All non-local data is accessed via this structure.
 112  */
 113 struct sta2x11_vip {
 114         struct v4l2_device v4l2_dev;
 115         struct video_device video_dev;
 116         struct pci_dev *pdev;
 117         struct i2c_adapter *adapter;
 118         unsigned int register_save_area[IRQ_COUNT + SAVE_COUNT + AUX_COUNT];
 119         struct v4l2_subdev *decoder;
 120         struct v4l2_ctrl_handler ctrl_hdl;
 121
 122
 123         struct v4l2_pix_format format;
 124         v4l2_std_id std;
 125         unsigned int input;
 126         int disabled;
 127         spinlock_t slock;
 128
 129         struct vb2_queue vb_vidq;
 130         struct list_head buffer_list;
 131         unsigned int sequence;
 132         struct vip_buffer *active; /* current active buffer */
 133         spinlock_t lock; /* Used in videobuf2 callback */
 134         struct mutex v4l_lock;
 135
 136         /* Interrupt counters */
 137         int tcount, bcount;
 138         int overflow;
 139
 140         void __iomem *iomem;    /* I/O Memory */
 141         struct vip_config *config;
 142 };
 143
 144 static const unsigned int registers_to_save[AUX_COUNT] = {
 145         DVP_HLFLN, DVP_RGB, DVP_PKZ
 146 };
 147
 148 static struct v4l2_pix_format formats_50[] = {
 149         {                       /*PAL interlaced */
 150          .width = 720,
 151          .height = 576,
 152          .pixelformat = V4L2_PIX_FMT_UYVY,
 153          .field = V4L2_FIELD_INTERLACED,
 154          .bytesperline = 720 * 2,
 155          .sizeimage = 720 * 2 * 576,
 156          .colorspace = V4L2_COLORSPACE_SMPTE170M},
 157         {                       /*PAL top */
 158          .width = 720,
 159          .height = 288,
 160          .pixelformat = V4L2_PIX_FMT_UYVY,
 161          .field = V4L2_FIELD_TOP,
 162          .bytesperline = 720 * 2,
 163          .sizeimage = 720 * 2 * 288,
 164          .colorspace = V4L2_COLORSPACE_SMPTE170M},
 165         {                       /*PAL bottom */
 166          .width = 720,
 167          .height = 288,
 168          .pixelformat = V4L2_PIX_FMT_UYVY,
 169          .field = V4L2_FIELD_BOTTOM,
 170          .bytesperline = 720 * 2,
 171          .sizeimage = 720 * 2 * 288,
 172          .colorspace = V4L2_COLORSPACE_SMPTE170M},
 173
 174 };
 175
 176 static struct v4l2_pix_format formats_60[] = {
 177         {                       /*NTSC interlaced */
 178          .width = 720,
 179          .height = 480,
 180          .pixelformat = V4L2_PIX_FMT_UYVY,
 181          .field = V4L2_FIELD_INTERLACED,
 182          .bytesperline = 720 * 2,
 183          .sizeimage = 720 * 2 * 480,
 184          .colorspace = V4L2_COLORSPACE_SMPTE170M},
 185         {                       /*NTSC top */
 186          .width = 720,
 187          .height = 240,
 188          .pixelformat = V4L2_PIX_FMT_UYVY,
 189          .field = V4L2_FIELD_TOP,
 190          .bytesperline = 720 * 2,
 191          .sizeimage = 720 * 2 * 240,
 192          .colorspace = V4L2_COLORSPACE_SMPTE170M},
 193         {                       /*NTSC bottom */
 194          .width = 720,
 195          .height = 240,
 196          .pixelformat = V4L2_PIX_FMT_UYVY,
 197          .field = V4L2_FIELD_BOTTOM,
 198          .bytesperline = 720 * 2,
 199          .sizeimage = 720 * 2 * 240,
 200          .colorspace = V4L2_COLORSPACE_SMPTE170M},
 201 };
 202
 203 /* Write VIP register */
 204 static inline void reg_write(struct sta2x11_vip *vip, unsigned int reg, u32 val)
 205 {
 206         iowrite32((val), (vip->iomem)+(reg));
 207 }
 208 /* Read VIP register */
 209 static inline u32 reg_read(struct sta2x11_vip *vip, unsigned int reg)
 210 {
 211         return  ioread32((vip->iomem)+(reg));
 212 }
 213 /* Start DMA acquisition */
 214 static void start_dma(struct sta2x11_vip *vip, struct vip_buffer *vip_buf)
 215 {
 216         unsigned long offset = 0;
 217
 218         if (vip->format.field == V4L2_FIELD_INTERLACED)
 219                 offset = vip->format.width * 2;
 220
 221         spin_lock_irq(&vip->slock);
 222         /* Enable acquisition */
 223         reg_write(vip, DVP_CTL, reg_read(vip, DVP_CTL) | DVP_CTL_ENA);
 224         /* Set Top and Bottom Field memory address */
 225         reg_write(vip, DVP_VTP, (u32)vip_buf->dma);
 226         reg_write(vip, DVP_VBP, (u32)vip_buf->dma + offset);
 227         spin_unlock_irq(&vip->slock);
 228 }
 229
 230 /* Fetch the next buffer to activate */
 231 static void vip_active_buf_next(struct sta2x11_vip *vip)
 232 {
 233         /* Get the next buffer */
 234         spin_lock(&vip->lock);
 235         if (list_empty(&vip->buffer_list)) {/* No available buffer */
 236                 spin_unlock(&vip->lock);
 237                 return;
 238         }
 239         vip->active = list_first_entry(&vip->buffer_list,
 240                                        struct vip_buffer,
 241                                        list);
 242         /* Reset Top and Bottom counter */
 243         vip->tcount = 0;
 244         vip->bcount = 0;
 245         spin_unlock(&vip->lock);
 246         if (vb2_is_streaming(&vip->vb_vidq)) {  /* streaming is on */
 247                 start_dma(vip, vip->active);    /* start dma capture */
 248         }
 249 }
 250
 251
 252 /* Videobuf2 Operations */
 253 static int queue_setup(struct vb2_queue *vq,
 254                        unsigned int *nbuffers, unsigned int *nplanes,
 255                        unsigned int sizes[], struct device *alloc_devs[])
 256 {
 257         struct sta2x11_vip *vip = vb2_get_drv_priv(vq);
 258
 259         if (!(*nbuffers) || *nbuffers < MAX_FRAMES)
 260                 *nbuffers = MAX_FRAMES;
 261
 262         *nplanes = 1;
 263         sizes[0] = vip->format.sizeimage;
 264
 265         vip->sequence = 0;
 266         vip->active = NULL;
 267         vip->tcount = 0;
 268         vip->bcount = 0;
 269
 270         return 0;
 271 };
 272 static int buffer_init(struct vb2_buffer *vb)
 273 {
 274         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 275         struct vip_buffer *vip_buf = to_vip_buffer(vbuf);
 276
 277         vip_buf->dma = vb2_dma_contig_plane_dma_addr(vb, 0);
 278         INIT_LIST_HEAD(&vip_buf->list);
 279         return 0;
 280 }
 281
 282 static int buffer_prepare(struct vb2_buffer *vb)
 283 {
 284         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 285         struct sta2x11_vip *vip = vb2_get_drv_priv(vb->vb2_queue);
 286         struct vip_buffer *vip_buf = to_vip_buffer(vbuf);
 287         unsigned long size;
 288
 289         size = vip->format.sizeimage;
 290         if (vb2_plane_size(vb, 0) < size) {
 291                 v4l2_err(&vip->v4l2_dev, "buffer too small (%lu < %lu)\n",
 292                          vb2_plane_size(vb, 0), size);
 293                 return -EINVAL;
 294         }
 295
 296         vb2_set_plane_payload(&vip_buf->vb.vb2_buf, 0, size);
 297
 298         return 0;
 299 }
 300 static void buffer_queue(struct vb2_buffer *vb)
 301 {
 302         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 303         struct sta2x11_vip *vip = vb2_get_drv_priv(vb->vb2_queue);
 304         struct vip_buffer *vip_buf = to_vip_buffer(vbuf);
 305
 306         spin_lock(&vip->lock);
 307         list_add_tail(&vip_buf->list, &vip->buffer_list);
 308         if (!vip->active) {     /* No active buffer, active the first one */
 309                 vip->active = list_first_entry(&vip->buffer_list,
 310                                                struct vip_buffer,
 311                                                list);
 312                 if (vb2_is_streaming(&vip->vb_vidq))    /* streaming is on */
 313                         start_dma(vip, vip_buf);        /* start dma capture */
 314         }
 315         spin_unlock(&vip->lock);
 316 }
 317 static void buffer_finish(struct vb2_buffer *vb)
 318 {
 319         struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
 320         struct sta2x11_vip *vip = vb2_get_drv_priv(vb->vb2_queue);
 321         struct vip_buffer *vip_buf = to_vip_buffer(vbuf);
 322
 323         /* Buffer handled, remove it from the list */
 324         spin_lock(&vip->lock);
 325         list_del_init(&vip_buf->list);
 326         spin_unlock(&vip->lock);
 327
 328         if (vb2_is_streaming(vb->vb2_queue))
 329                 vip_active_buf_next(vip);
 330 }
 331
 332 static int start_streaming(struct vb2_queue *vq, unsigned int count)
 333 {
 334         struct sta2x11_vip *vip = vb2_get_drv_priv(vq);
 335
 336         spin_lock_irq(&vip->slock);
 337         /* Enable interrupt VSYNC Top and Bottom*/
 338         reg_write(vip, DVP_ITM, DVP_IT_VSB | DVP_IT_VST);
 339         spin_unlock_irq(&vip->slock);
 340
 341         if (count)
 342                 start_dma(vip, vip->active);
 343
 344         return 0;
 345 }
 346
 347 /* abort streaming and wait for last buffer */
 348 static void stop_streaming(struct vb2_queue *vq)
 349 {
 350         struct sta2x11_vip *vip = vb2_get_drv_priv(vq);
 351         struct vip_buffer *vip_buf, *node;
 352
 353         /* Disable acquisition */
 354         reg_write(vip, DVP_CTL, reg_read(vip, DVP_CTL) & ~DVP_CTL_ENA);
 355         /* Disable all interrupts */
 356         reg_write(vip, DVP_ITM, 0);
 357
 358         /* Release all active buffers */
 359         spin_lock(&vip->lock);
 360         list_for_each_entry_safe(vip_buf, node, &vip->buffer_list, list) {
 361                 vb2_buffer_done(&vip_buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
 362                 list_del(&vip_buf->list);
 363         }
 364         spin_unlock(&vip->lock);
 365 }
 366
 367 static const struct vb2_ops vip_video_qops = {
 368         .queue_setup            = queue_setup,
 369         .buf_init               = buffer_init,
 370         .buf_prepare            = buffer_prepare,
 371         .buf_finish             = buffer_finish,
 372         .buf_queue              = buffer_queue,
 373         .start_streaming        = start_streaming,
 374         .stop_streaming         = stop_streaming,
 375 };
 376
 377
 378 /* File Operations */
 379 static const struct v4l2_file_operations vip_fops = {
 380         .owner = THIS_MODULE,
 381         .open = v4l2_fh_open,
 382         .release = vb2_fop_release,
 383         .unlocked_ioctl = video_ioctl2,
 384         .read = vb2_fop_read,
 385         .mmap = vb2_fop_mmap,
 386         .poll = vb2_fop_poll
 387 };
 388
 389
 390 /**
 391  * vidioc_querycap - return capabilities of device
 392  * @file: descriptor of device
 393  * @cap: contains return values
 394  * @priv: unused
 395  *
 396  * the capabilities of the device are returned
 397  *
 398  * return value: 0, no error.
 399  */
 400 static int vidioc_querycap(struct file *file, void *priv,
 401                            struct v4l2_capability *cap)
 402 {
 403         strscpy(cap->driver, KBUILD_MODNAME, sizeof(cap->driver));
 404         strscpy(cap->card, KBUILD_MODNAME, sizeof(cap->card));
 405         return 0;
 406 }
 407
 408 /**
 409  * vidioc_s_std - set video standard
 410  * @file: descriptor of device
 411  * @std: contains standard to be set
 412  * @priv: unused
 413  *
 414  * the video standard is set
 415  *
 416  * return value: 0, no error.
 417  *
 418  * -EIO, no input signal detected
 419  *
 420  * other, returned from video DAC.
 421  */
 422 static int vidioc_s_std(struct file *file, void *priv, v4l2_std_id std)
 423 {
 424         struct sta2x11_vip *vip = video_drvdata(file);
 425
 426         /*
 427          * This is here for backwards compatibility only.
 428          * The use of V4L2_STD_ALL to trigger a querystd is non-standard.
 429          */
 430         if (std == V4L2_STD_ALL) {
 431                 v4l2_subdev_call(vip->decoder, video, querystd, &std);
 432                 if (std == V4L2_STD_UNKNOWN)
 433                         return -EIO;
 434         }
 435
 436         if (vip->std != std) {
 437                 vip->std = std;
 438                 if (V4L2_STD_525_60 & std)
 439                         vip->format = formats_60[0];
 440                 else
 441                         vip->format = formats_50[0];
 442         }
 443
 444         return v4l2_subdev_call(vip->decoder, video, s_std, std);
 445 }
 446
 447 /**
 448  * vidioc_g_std - get video standard
 449  * @file: descriptor of device
 450  * @priv: unused
 451  * @std: contains return values
 452  *
 453  * the current video standard is returned
 454  *
 455  * return value: 0, no error.
 456  */
 457 static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *std)
 458 {
 459         struct sta2x11_vip *vip = video_drvdata(file);
 460
 461         *std = vip->std;
 462         return 0;
 463 }
 464
 465 /**
 466  * vidioc_querystd - get possible video standards
 467  * @file: descriptor of device
 468  * @priv: unused
 469  * @std: contains return values
 470  *
 471  * all possible video standards are returned
 472  *
 473  * return value: delivered by video DAC routine.
 474  */
 475 static int vidioc_querystd(struct file *file, void *priv, v4l2_std_id *std)
 476 {
 477         struct sta2x11_vip *vip = video_drvdata(file);
 478
 479         return v4l2_subdev_call(vip->decoder, video, querystd, std);
 480 }
 481
 482 static int vidioc_enum_input(struct file *file, void *priv,
 483                              struct v4l2_input *inp)
 484 {
 485         if (inp->index > 1)
 486                 return -EINVAL;
 487
 488         inp->type = V4L2_INPUT_TYPE_CAMERA;
 489         inp->std = V4L2_STD_ALL;
 490         sprintf(inp->name, "Camera %u", inp->index);
 491
 492         return 0;
 493 }
 494
 495 /**
 496  * vidioc_s_input - set input line
 497  * @file: descriptor of device
 498  * @priv: unused
 499  * @i: new input line number
 500  *
 501  * the current active input line is set
 502  *
 503  * return value: 0, no error.
 504  *
 505  * -EINVAL, line number out of range
 506  */
 507 static int vidioc_s_input(struct file *file, void *priv, unsigned int i)
 508 {
 509         struct sta2x11_vip *vip = video_drvdata(file);
 510         int ret;
 511
 512         if (i > 1)
 513                 return -EINVAL;
 514         ret = v4l2_subdev_call(vip->decoder, video, s_routing, i, 0, 0);
 515
 516         if (!ret)
 517                 vip->input = i;
 518
 519         return 0;
 520 }
 521
 522 /**
 523  * vidioc_g_input - return input line
 524  * @file: descriptor of device
 525  * @priv: unused
 526  * @i: returned input line number
 527  *
 528  * the current active input line is returned
 529  *
 530  * return value: always 0.
 531  */
 532 static int vidioc_g_input(struct file *file, void *priv, unsigned int *i)
 533 {
 534         struct sta2x11_vip *vip = video_drvdata(file);
 535
 536         *i = vip->input;
 537         return 0;
 538 }
 539
 540 /**
 541  * vidioc_enum_fmt_vid_cap - return video capture format
 542  * @file: descriptor of device
 543  * @priv: unused
 544  * @f: returned format information
 545  *
 546  * returns name and format of video capture
 547  * Only UYVY is supported by hardware.
 548  *
 549  * return value: always 0.
 550  */
 551 static int vidioc_enum_fmt_vid_cap(struct file *file, void *priv,
 552                                    struct v4l2_fmtdesc *f)
 553 {
 554
 555         if (f->index != 0)
 556                 return -EINVAL;
 557
 558         f->pixelformat = V4L2_PIX_FMT_UYVY;
 559         return 0;
 560 }
 561
 562 /**
 563  * vidioc_try_fmt_vid_cap - set video capture format
 564  * @file: descriptor of device
 565  * @priv: unused
 566  * @f: new format
 567  *
 568  * new video format is set which includes width and
 569  * field type. width is fixed to 720, no scaling.
 570  * Only UYVY is supported by this hardware.
 571  * the minimum height is 200, the maximum is 576 (PAL)
 572  *
 573  * return value: 0, no error
 574  *
 575  * -EINVAL, pixel or field format not supported
 576  *
 577  */
 578 static int vidioc_try_fmt_vid_cap(struct file *file, void *priv,
 579                                   struct v4l2_format *f)
 580 {
 581         struct sta2x11_vip *vip = video_drvdata(file);
 582         int interlace_lim;
 583
 584         if (V4L2_PIX_FMT_UYVY != f->fmt.pix.pixelformat) {
 585                 v4l2_warn(&vip->v4l2_dev, "Invalid format, only UYVY supported\n");
 586                 return -EINVAL;
 587         }
 588
 589         if (V4L2_STD_525_60 & vip->std)
 590                 interlace_lim = 240;
 591         else
 592                 interlace_lim = 288;
 593
 594         switch (f->fmt.pix.field) {
 595         default:
 596         case V4L2_FIELD_ANY:
 597                 if (interlace_lim < f->fmt.pix.height)
 598                         f->fmt.pix.field = V4L2_FIELD_INTERLACED;
 599                 else
 600                         f->fmt.pix.field = V4L2_FIELD_BOTTOM;
 601                 break;
 602         case V4L2_FIELD_TOP:
 603         case V4L2_FIELD_BOTTOM:
 604                 if (interlace_lim < f->fmt.pix.height)
 605                         f->fmt.pix.height = interlace_lim;
 606                 break;
 607         case V4L2_FIELD_INTERLACED:
 608                 break;
 609         }
 610
 611         /* It is the only supported format */
 612         f->fmt.pix.pixelformat = V4L2_PIX_FMT_UYVY;
 613         f->fmt.pix.height &= ~1;
 614         if (2 * interlace_lim < f->fmt.pix.height)
 615                 f->fmt.pix.height = 2 * interlace_lim;
 616         if (200 > f->fmt.pix.height)
 617                 f->fmt.pix.height = 200;
 618         f->fmt.pix.width = 720;
 619         f->fmt.pix.bytesperline = f->fmt.pix.width * 2;
 620         f->fmt.pix.sizeimage = f->fmt.pix.width * 2 * f->fmt.pix.height;
 621         f->fmt.pix.colorspace = V4L2_COLORSPACE_SMPTE170M;
 622         return 0;
 623 }
 624
 625 /**
 626  * vidioc_s_fmt_vid_cap - set current video format parameters
 627  * @file: descriptor of device
 628  * @priv: unused
 629  * @f: returned format information
 630  *
 631  * set new capture format
 632  * return value: 0, no error
 633  *
 634  * other, delivered by video DAC routine.
 635  */
 636 static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
 637                                 struct v4l2_format *f)
 638 {
 639         struct sta2x11_vip *vip = video_drvdata(file);
 640         unsigned int t_stop, b_stop, pitch;
 641         int ret;
 642
 643         ret = vidioc_try_fmt_vid_cap(file, priv, f);
 644         if (ret)
 645                 return ret;
 646
 647         if (vb2_is_busy(&vip->vb_vidq)) {
 648                 /* Can't change format during acquisition */
 649                 v4l2_err(&vip->v4l2_dev, "device busy\n");
 650                 return -EBUSY;
 651         }
 652         vip->format = f->fmt.pix;
 653         switch (vip->format.field) {
 654         case V4L2_FIELD_INTERLACED:
 655                 t_stop = ((vip->format.height / 2 - 1) << 16) |
 656                          (2 * vip->format.width - 1);
 657                 b_stop = t_stop;
 658                 pitch = 4 * vip->format.width;
 659                 break;
 660         case V4L2_FIELD_TOP:
 661                 t_stop = ((vip->format.height - 1) << 16) |
 662                          (2 * vip->format.width - 1);
 663                 b_stop = (0 << 16) | (2 * vip->format.width - 1);
 664                 pitch = 2 * vip->format.width;
 665                 break;
 666         case V4L2_FIELD_BOTTOM:
 667                 t_stop = (0 << 16) | (2 * vip->format.width - 1);
 668                 b_stop = (vip->format.height << 16) |
 669                          (2 * vip->format.width - 1);
 670                 pitch = 2 * vip->format.width;
 671                 break;
 672         default:
 673                 v4l2_err(&vip->v4l2_dev, "unknown field format\n");
 674                 return -EINVAL;
 675         }
 676
 677         spin_lock_irq(&vip->slock);
 678         /* Y-X Top Field Offset */
 679         reg_write(vip, DVP_TFO, 0);
 680         /* Y-X Bottom Field Offset */
 681         reg_write(vip, DVP_BFO, 0);
 682         /* Y-X Top Field Stop*/
 683         reg_write(vip, DVP_TFS, t_stop);
 684         /* Y-X Bottom Field Stop */
 685         reg_write(vip, DVP_BFS, b_stop);
 686         /* Video Memory Pitch */
 687         reg_write(vip, DVP_VMP, pitch);
 688         spin_unlock_irq(&vip->slock);
 689
 690         return 0;
 691 }
 692
 693 /**
 694  * vidioc_g_fmt_vid_cap - get current video format parameters
 695  * @file: descriptor of device
 696  * @priv: unused
 697  * @f: contains format information
 698  *
 699  * returns current video format parameters
 700  *
 701  * return value: 0, always successful
 702  */
 703 static int vidioc_g_fmt_vid_cap(struct file *file, void *priv,
 704                                 struct v4l2_format *f)
 705 {
 706         struct sta2x11_vip *vip = video_drvdata(file);
 707
 708         f->fmt.pix = vip->format;
 709
 710         return 0;
 711 }
 712
 713 static const struct v4l2_ioctl_ops vip_ioctl_ops = {
 714         .vidioc_querycap = vidioc_querycap,
 715         /* FMT handling */
 716         .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
 717         .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
 718         .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
 719         .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
 720         /* Buffer handlers */
 721         .vidioc_create_bufs = vb2_ioctl_create_bufs,
 722         .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
 723         .vidioc_reqbufs = vb2_ioctl_reqbufs,
 724         .vidioc_querybuf = vb2_ioctl_querybuf,
 725         .vidioc_qbuf = vb2_ioctl_qbuf,
 726         .vidioc_dqbuf = vb2_ioctl_dqbuf,
 727         /* Stream on/off */
 728         .vidioc_streamon = vb2_ioctl_streamon,
 729         .vidioc_streamoff = vb2_ioctl_streamoff,
 730         /* Standard handling */
 731         .vidioc_g_std = vidioc_g_std,
 732         .vidioc_s_std = vidioc_s_std,
 733         .vidioc_querystd = vidioc_querystd,
 734         /* Input handling */
 735         .vidioc_enum_input = vidioc_enum_input,
 736         .vidioc_g_input = vidioc_g_input,
 737         .vidioc_s_input = vidioc_s_input,
 738         /* Log status ioctl */
 739         .vidioc_log_status = v4l2_ctrl_log_status,
 740         /* Event handling */
 741         .vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
 742         .vidioc_unsubscribe_event = v4l2_event_unsubscribe,
 743 };
 744
 745 static const struct video_device video_dev_template = {
 746         .name = KBUILD_MODNAME,
 747         .release = video_device_release_empty,
 748         .fops = &vip_fops,
 749         .ioctl_ops = &vip_ioctl_ops,
 750         .tvnorms = V4L2_STD_ALL,
 751         .device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE |
 752                        V4L2_CAP_STREAMING,
 753 };
 754
 755 /**
 756  * vip_irq - interrupt routine
 757  * @irq: Number of interrupt ( not used, correct number is assumed )
 758  * @data: local data structure containing all information
 759  *
 760  * check for both frame interrupts set ( top and bottom ).
 761  * check FIFO overflow, but limit number of log messages after open.
 762  * signal a complete buffer if done
 763  *
 764  * return value: IRQ_NONE, interrupt was not generated by VIP
 765  *
 766  * IRQ_HANDLED, interrupt done.
 767  */
 768 static irqreturn_t vip_irq(int irq, void *data)
 769 {
 770         struct sta2x11_vip *vip = data;
 771         unsigned int status;
 772
 773         status = reg_read(vip, DVP_ITS);
 774
 775         if (!status)            /* No interrupt to handle */
 776                 return IRQ_NONE;
 777
 778         if (status & DVP_IT_FIFO)
 779                 if (vip->overflow++ > 5)
 780                         pr_info("VIP: fifo overflow\n");
 781
 782         if ((status & DVP_IT_VST) && (status & DVP_IT_VSB)) {
 783                 /* this is bad, we are too slow, hope the condition is gone
 784                  * on the next frame */
 785                 return IRQ_HANDLED;
 786         }
 787
 788         if (status & DVP_IT_VST)
 789                 if ((++vip->tcount) < 2)
 790                         return IRQ_HANDLED;
 791         if (status & DVP_IT_VSB) {
 792                 vip->bcount++;
 793                 return IRQ_HANDLED;
 794         }
 795
 796         if (vip->active) { /* Acquisition is over on this buffer */
 797                 /* Disable acquisition */
 798                 reg_write(vip, DVP_CTL, reg_read(vip, DVP_CTL) & ~DVP_CTL_ENA);
 799                 /* Remove the active buffer from the list */
 800                 vip->active->vb.vb2_buf.timestamp = ktime_get_ns();
 801                 vip->active->vb.sequence = vip->sequence++;
 802                 vb2_buffer_done(&vip->active->vb.vb2_buf, VB2_BUF_STATE_DONE);
 803         }
 804
 805         return IRQ_HANDLED;
 806 }
 807
 808 static void sta2x11_vip_init_register(struct sta2x11_vip *vip)
 809 {
 810         /* Register initialization */
 811         spin_lock_irq(&vip->slock);
 812         /* Clean interrupt */
 813         reg_read(vip, DVP_ITS);
 814         /* Enable Half Line per vertical */
 815         reg_write(vip, DVP_HLFLN, DVP_HLFLN_SD);
 816         /* Reset VIP control */
 817         reg_write(vip, DVP_CTL, DVP_CTL_RST);
 818         /* Clear VIP control */
 819         reg_write(vip, DVP_CTL, 0);
 820         spin_unlock_irq(&vip->slock);
 821 }
 822 static void sta2x11_vip_clear_register(struct sta2x11_vip *vip)
 823 {
 824         spin_lock_irq(&vip->slock);
 825         /* Disable interrupt */
 826         reg_write(vip, DVP_ITM, 0);
 827         /* Reset VIP Control */
 828         reg_write(vip, DVP_CTL, DVP_CTL_RST);
 829         /* Clear VIP Control */
 830         reg_write(vip, DVP_CTL, 0);
 831         /* Clean VIP Interrupt */
 832         reg_read(vip, DVP_ITS);
 833         spin_unlock_irq(&vip->slock);
 834 }
 835 static int sta2x11_vip_init_buffer(struct sta2x11_vip *vip)
 836 {
 837         int err;
 838
 839         err = dma_set_coherent_mask(&vip->pdev->dev, DMA_BIT_MASK(29));
 840         if (err) {
 841                 v4l2_err(&vip->v4l2_dev, "Cannot configure coherent mask");
 842                 return err;
 843         }
 844         memset(&vip->vb_vidq, 0, sizeof(struct vb2_queue));
 845         vip->vb_vidq.type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
 846         vip->vb_vidq.io_modes = VB2_MMAP | VB2_READ;
 847         vip->vb_vidq.drv_priv = vip;
 848         vip->vb_vidq.buf_struct_size = sizeof(struct vip_buffer);
 849         vip->vb_vidq.ops = &vip_video_qops;
 850         vip->vb_vidq.mem_ops = &vb2_dma_contig_memops;
 851         vip->vb_vidq.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
 852         vip->vb_vidq.dev = &vip->pdev->dev;
 853         vip->vb_vidq.lock = &vip->v4l_lock;
 854         err = vb2_queue_init(&vip->vb_vidq);
 855         if (err)
 856                 return err;
 857         INIT_LIST_HEAD(&vip->buffer_list);
 858         spin_lock_init(&vip->lock);
 859         return 0;
 860 }
 861
 862 static int sta2x11_vip_init_controls(struct sta2x11_vip *vip)
 863 {
 864         /*
 865          * Inititialize an empty control so VIP can inerithing controls
 866          * from ADV7180
 867          */
 868         v4l2_ctrl_handler_init(&vip->ctrl_hdl, 0);
 869
 870         vip->v4l2_dev.ctrl_handler = &vip->ctrl_hdl;
 871         if (vip->ctrl_hdl.error) {
 872                 int err = vip->ctrl_hdl.error;
 873
 874                 v4l2_ctrl_handler_free(&vip->ctrl_hdl);
 875                 return err;
 876         }
 877
 878         return 0;
 879 }
 880
 881 /**
 882  * vip_gpio_reserve - reserve gpio pin
 883  * @dev: device
 884  * @pin: GPIO pin number
 885  * @dir: direction, input or output
 886  * @name: GPIO pin name
 887  *
 888  */
 889 static int vip_gpio_reserve(struct device *dev, int pin, int dir,
 890                             const char *name)
 891 {
 892         struct gpio_desc *desc = gpio_to_desc(pin);
 893         int ret = -ENODEV;
 894
 895         if (!gpio_is_valid(pin))
 896                 return ret;
 897
 898         ret = gpio_request(pin, name);
 899         if (ret) {
 900                 dev_err(dev, "Failed to allocate pin %d (%s)\n", pin, name);
 901                 return ret;
 902         }
 903
 904         ret = gpiod_direction_output(desc, dir);
 905         if (ret) {
 906                 dev_err(dev, "Failed to set direction for pin %d (%s)\n",
 907                         pin, name);
 908                 gpio_free(pin);
 909                 return ret;
 910         }
 911
 912         ret = gpiod_export(desc, false);
 913         if (ret) {
 914                 dev_err(dev, "Failed to export pin %d (%s)\n", pin, name);
 915                 gpio_free(pin);
 916                 return ret;
 917         }
 918
 919         return 0;
 920 }
 921
 922 /**
 923  * vip_gpio_release - release gpio pin
 924  * @dev: device
 925  * @pin: GPIO pin number
 926  * @name: GPIO pin name
 927  *
 928  */
 929 static void vip_gpio_release(struct device *dev, int pin, const char *name)
 930 {
 931         if (gpio_is_valid(pin)) {
 932                 struct gpio_desc *desc = gpio_to_desc(pin);
 933
 934                 dev_dbg(dev, "releasing pin %d (%s)\n", pin, name);
 935                 gpiod_unexport(desc);
 936                 gpio_free(pin);
 937         }
 938 }
 939
 940 /**
 941  * sta2x11_vip_init_one - init one instance of video device
 942  * @pdev: PCI device
 943  * @ent: (not used)
 944  *
 945  * allocate reset pins for DAC.
 946  * Reset video DAC, this is done via reset line.
 947  * allocate memory for managing device
 948  * request interrupt
 949  * map IO region
 950  * register device
 951  * find and initialize video DAC
 952  *
 953  * return value: 0, no error
 954  *
 955  * -ENOMEM, no memory
 956  *
 957  * -ENODEV, device could not be detected or registered
 958  */
 959 static int sta2x11_vip_init_one(struct pci_dev *pdev,
 960                                 const struct pci_device_id *ent)
 961 {
 962         int ret;
 963         struct sta2x11_vip *vip;
 964         struct vip_config *config;
 965
 966         /* Check if hardware support 26-bit DMA */
 967         if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(26))) {
 968                 dev_err(&pdev->dev, "26-bit DMA addressing not available\n");
 969                 return -EINVAL;
 970         }
 971         /* Enable PCI */
 972         ret = pci_enable_device(pdev);
 973         if (ret)
 974                 return ret;
 975
 976         /* Get VIP platform data */
 977         config = dev_get_platdata(&pdev->dev);
 978         if (!config) {
 979                 dev_info(&pdev->dev, "VIP slot disabled\n");
 980                 ret = -EINVAL;
 981                 goto disable;
 982         }
 983
 984         /* Power configuration */
 985         ret = vip_gpio_reserve(&pdev->dev, config->pwr_pin, 0,
 986                                config->pwr_name);
 987         if (ret)
 988                 goto disable;
 989
 990         ret = vip_gpio_reserve(&pdev->dev, config->reset_pin, 0,
 991                                config->reset_name);
 992         if (ret) {
 993                 vip_gpio_release(&pdev->dev, config->pwr_pin,
 994                                  config->pwr_name);
 995                 goto disable;
 996         }
 997
 998         if (gpio_is_valid(config->pwr_pin)) {
 999                 /* Datasheet says 5ms between PWR and RST */
1000                 usleep_range(5000, 25000);
1001                 gpio_direction_output(config->pwr_pin, 1);
1002         }
1003
1004         if (gpio_is_valid(config->reset_pin)) {
1005                 /* Datasheet says 5ms between PWR and RST */
1006                 usleep_range(5000, 25000);
1007                 gpio_direction_output(config->reset_pin, 1);
1008         }
1009         usleep_range(5000, 25000);
1010
1011         /* Allocate a new VIP instance */
1012         vip = kzalloc(sizeof(struct sta2x11_vip), GFP_KERNEL);
1013         if (!vip) {
1014                 ret = -ENOMEM;
1015                 goto release_gpios;
1016         }
1017         vip->pdev = pdev;
1018         vip->std = V4L2_STD_PAL;
1019         vip->format = formats_50[0];
1020         vip->config = config;
1021         mutex_init(&vip->v4l_lock);
1022
1023         ret = sta2x11_vip_init_controls(vip);
1024         if (ret)
1025                 goto free_mem;
1026         ret = v4l2_device_register(&pdev->dev, &vip->v4l2_dev);
1027         if (ret)
1028                 goto free_mem;
1029
1030         dev_dbg(&pdev->dev, "BAR #0 at 0x%lx 0x%lx irq %d\n",
1031                 (unsigned long)pci_resource_start(pdev, 0),
1032                 (unsigned long)pci_resource_len(pdev, 0), pdev->irq);
1033
1034         pci_set_master(pdev);
1035
1036         ret = pci_request_regions(pdev, KBUILD_MODNAME);
1037         if (ret)
1038                 goto unreg;
1039
1040         vip->iomem = pci_iomap(pdev, 0, 0x100);
1041         if (!vip->iomem) {
1042                 ret = -ENOMEM;
1043                 goto release;
1044         }
1045
1046         pci_enable_msi(pdev);
1047
1048         /* Initialize buffer */
1049         ret = sta2x11_vip_init_buffer(vip);
1050         if (ret)
1051                 goto unmap;
1052
1053         spin_lock_init(&vip->slock);
1054
1055         ret = request_irq(pdev->irq, vip_irq, IRQF_SHARED, KBUILD_MODNAME, vip);
1056         if (ret) {
1057                 dev_err(&pdev->dev, "request_irq failed\n");
1058                 ret = -ENODEV;
1059                 goto release_buf;
1060         }
1061
1062         /* Initialize and register video device */
1063         vip->video_dev = video_dev_template;
1064         vip->video_dev.v4l2_dev = &vip->v4l2_dev;
1065         vip->video_dev.queue = &vip->vb_vidq;
1066         vip->video_dev.lock = &vip->v4l_lock;
1067         video_set_drvdata(&vip->video_dev, vip);
1068
1069         ret = video_register_device(&vip->video_dev, VFL_TYPE_VIDEO, -1);
1070         if (ret)
1071                 goto vrelease;
1072
1073         /* Get ADV7180 subdevice */
1074         vip->adapter = i2c_get_adapter(vip->config->i2c_id);
1075         if (!vip->adapter) {
1076                 ret = -ENODEV;
1077                 dev_err(&pdev->dev, "no I2C adapter found\n");
1078                 goto vunreg;
1079         }
1080
1081         vip->decoder = v4l2_i2c_new_subdev(&vip->v4l2_dev, vip->adapter,
1082                                            "adv7180", vip->config->i2c_addr,
1083                                            NULL);
1084         if (!vip->decoder) {
1085                 ret = -ENODEV;
1086                 dev_err(&pdev->dev, "no decoder found\n");
1087                 goto vunreg;
1088         }
1089
1090         i2c_put_adapter(vip->adapter);
1091         v4l2_subdev_call(vip->decoder, core, init, 0);
1092
1093         sta2x11_vip_init_register(vip);
1094
1095         dev_info(&pdev->dev, "STA2X11 Video Input Port (VIP) loaded\n");
1096         return 0;
1097
1098 vunreg:
1099         video_set_drvdata(&vip->video_dev, NULL);
1100 vrelease:
1101         vb2_video_unregister_device(&vip->video_dev);
1102         free_irq(pdev->irq, vip);
1103 release_buf:
1104         pci_disable_msi(pdev);
1105 unmap:
1106         pci_iounmap(pdev, vip->iomem);
1107 release:
1108         pci_release_regions(pdev);
1109 unreg:
1110         v4l2_device_unregister(&vip->v4l2_dev);
1111 free_mem:
1112         kfree(vip);
1113 release_gpios:
1114         vip_gpio_release(&pdev->dev, config->reset_pin, config->reset_name);
1115         vip_gpio_release(&pdev->dev, config->pwr_pin, config->pwr_name);
1116 disable:
1117         /*
1118          * do not call pci_disable_device on sta2x11 because it break all
1119          * other Bus masters on this EP
1120          */
1121         return ret;
1122 }
1123
1124 /**
1125  * sta2x11_vip_remove_one - release device
1126  * @pdev: PCI device
1127  *
1128  * Undo everything done in .._init_one
1129  *
1130  * unregister video device
1131  * free interrupt
1132  * unmap ioadresses
1133  * free memory
1134  * free GPIO pins
1135  */
1136 static void sta2x11_vip_remove_one(struct pci_dev *pdev)
1137 {
1138         struct v4l2_device *v4l2_dev = pci_get_drvdata(pdev);
1139         struct sta2x11_vip *vip =
1140             container_of(v4l2_dev, struct sta2x11_vip, v4l2_dev);
1141
1142         sta2x11_vip_clear_register(vip);
1143
1144         video_set_drvdata(&vip->video_dev, NULL);
1145         vb2_video_unregister_device(&vip->video_dev);
1146         free_irq(pdev->irq, vip);
1147         pci_disable_msi(pdev);
1148         pci_iounmap(pdev, vip->iomem);
1149         pci_release_regions(pdev);
1150
1151         v4l2_device_unregister(&vip->v4l2_dev);
1152
1153         vip_gpio_release(&pdev->dev, vip->config->pwr_pin,
1154                          vip->config->pwr_name);
1155         vip_gpio_release(&pdev->dev, vip->config->reset_pin,
1156                          vip->config->reset_name);
1157
1158         kfree(vip);
1159         /*
1160          * do not call pci_disable_device on sta2x11 because it break all
1161          * other Bus masters on this EP
1162          */
1163 }
1164
1165 /**
1166  * sta2x11_vip_suspend - set device into power save mode
1167  * @dev_d: PCI device
1168  *
1169  * all relevant registers are saved and an attempt to set a new state is made.
1170  *
1171  * return value: 0 always indicate success,
1172  * even if device could not be disabled. (workaround for hardware problem)
1173  */
1174 static int __maybe_unused sta2x11_vip_suspend(struct device *dev_d)
1175 {
1176         struct v4l2_device *v4l2_dev = dev_get_drvdata(dev_d);
1177         struct sta2x11_vip *vip =
1178             container_of(v4l2_dev, struct sta2x11_vip, v4l2_dev);
1179         unsigned long flags;
1180         int i;
1181
1182         spin_lock_irqsave(&vip->slock, flags);
1183         vip->register_save_area[0] = reg_read(vip, DVP_CTL);
1184         reg_write(vip, DVP_CTL, vip->register_save_area[0] & DVP_CTL_DIS);
1185         vip->register_save_area[SAVE_COUNT] = reg_read(vip, DVP_ITM);
1186         reg_write(vip, DVP_ITM, 0);
1187         for (i = 1; i < SAVE_COUNT; i++)
1188                 vip->register_save_area[i] = reg_read(vip, 4 * i);
1189         for (i = 0; i < AUX_COUNT; i++)
1190                 vip->register_save_area[SAVE_COUNT + IRQ_COUNT + i] =
1191                     reg_read(vip, registers_to_save[i]);
1192         spin_unlock_irqrestore(&vip->slock, flags);
1193
1194         vip->disabled = 1;
1195
1196         pr_info("VIP: suspend\n");
1197         return 0;
1198 }
1199
1200 /**
1201  * sta2x11_vip_resume - resume device operation
1202  * @dev_d : PCI device
1203  *
1204  * return value: 0, no error.
1205  *
1206  * other, could not set device to power on state.
1207  */
1208 static int __maybe_unused sta2x11_vip_resume(struct device *dev_d)
1209 {
1210         struct v4l2_device *v4l2_dev = dev_get_drvdata(dev_d);
1211         struct sta2x11_vip *vip =
1212             container_of(v4l2_dev, struct sta2x11_vip, v4l2_dev);
1213         unsigned long flags;
1214         int i;
1215
1216         pr_info("VIP: resume\n");
1217
1218         vip->disabled = 0;
1219
1220         spin_lock_irqsave(&vip->slock, flags);
1221         for (i = 1; i < SAVE_COUNT; i++)
1222                 reg_write(vip, 4 * i, vip->register_save_area[i]);
1223         for (i = 0; i < AUX_COUNT; i++)
1224                 reg_write(vip, registers_to_save[i],
1225                           vip->register_save_area[SAVE_COUNT + IRQ_COUNT + i]);
1226         reg_write(vip, DVP_CTL, vip->register_save_area[0]);
1227         reg_write(vip, DVP_ITM, vip->register_save_area[SAVE_COUNT]);
1228         spin_unlock_irqrestore(&vip->slock, flags);
1229         return 0;
1230 }
1231
1232 static const struct pci_device_id sta2x11_vip_pci_tbl[] = {
1233         {PCI_DEVICE(PCI_VENDOR_ID_STMICRO, PCI_DEVICE_ID_STMICRO_VIP)},
1234         {0,}
1235 };
1236
1237 static SIMPLE_DEV_PM_OPS(sta2x11_vip_pm_ops,
1238                          sta2x11_vip_suspend,
1239                          sta2x11_vip_resume);
1240
1241 static struct pci_driver sta2x11_vip_driver = {
1242         .name = KBUILD_MODNAME,
1243         .probe = sta2x11_vip_init_one,
1244         .remove = sta2x11_vip_remove_one,
1245         .id_table = sta2x11_vip_pci_tbl,
1246         .driver.pm = &sta2x11_vip_pm_ops,
1247 };
1248
1249 static int __init sta2x11_vip_init_module(void)
1250 {
1251         return pci_register_driver(&sta2x11_vip_driver);
1252 }
1253
1254 static void __exit sta2x11_vip_exit_module(void)
1255 {
1256         pci_unregister_driver(&sta2x11_vip_driver);
1257 }
1258
1259 #ifdef MODULE
1260 module_init(sta2x11_vip_init_module);
1261 module_exit(sta2x11_vip_exit_module);
1262 #else
1263 late_initcall_sync(sta2x11_vip_init_module);
1264 #endif
1265
1266 MODULE_DESCRIPTION("STA2X11 Video Input Port driver");
1267 MODULE_AUTHOR("Wind River");
1268 MODULE_LICENSE("GPL v2");
1269 MODULE_VERSION(DRV_VERSION);
1270 MODULE_DEVICE_TABLE(pci, sta2x11_vip_pci_tbl);