diff options
Diffstat (limited to 'drivers/media/video/em28xx')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-video.c | 869 |
1 files changed, 427 insertions, 442 deletions
diff --git a/drivers/media/video/em28xx/em28xx-video.c b/drivers/media/video/em28xx/em28xx-video.c index d8d02c44c9d..1b0e10d5edd 100644 --- a/drivers/media/video/em28xx/em28xx-video.c +++ b/drivers/media/video/em28xx/em28xx-video.c @@ -1012,19 +1012,15 @@ static int em28xx_set_fmt(struct em28xx *dev, unsigned int cmd, struct v4l2_form width /= 2; } - if ((hscale = - (((unsigned long)maxw) << 12) / width - 4096L) >= - 0x4000) + if ((hscale = (((unsigned long)maxw) << 12) / width - 4096L) >= 0x4000) hscale = 0x3fff; - width = - (((unsigned long)maxw) << 12) / (hscale + 4096L); - if ((vscale = - (((unsigned long)maxh) << 12) / height - 4096L) >= - 0x4000) + width = (((unsigned long)maxw) << 12) / (hscale + 4096L); + + if ((vscale = (((unsigned long)maxh) << 12) / height - 4096L) >= 0x4000) vscale = 0x3fff; - height = - (((unsigned long)maxh) << 12) / (vscale + 4096L); + + height = (((unsigned long)maxh) << 12) / (vscale + 4096L); format->fmt.pix.width = width; format->fmt.pix.height = height; @@ -1035,10 +1031,9 @@ static int em28xx_set_fmt(struct em28xx *dev, unsigned int cmd, struct v4l2_form format->fmt.pix.field = V4L2_FIELD_INTERLACED; em28xx_videodbg("%s: returned %dx%d (%d, %d)\n", - cmd == - VIDIOC_TRY_FMT ? "VIDIOC_TRY_FMT" : - "VIDIOC_S_FMT", format->fmt.pix.width, - format->fmt.pix.height, hscale, vscale); + cmd == VIDIOC_TRY_FMT ? + "VIDIOC_TRY_FMT" :"VIDIOC_S_FMT", + format->fmt.pix.width, format->fmt.pix.height, hscale, vscale); if (cmd == VIDIOC_TRY_FMT) return 0; @@ -1064,7 +1059,7 @@ static int em28xx_set_fmt(struct em28xx *dev, unsigned int cmd, struct v4l2_form dev->width = width; dev->height = height; dev->frame_size = dev->width * dev->height * 2; - dev->field_size = dev->frame_size >> 1; /*both_fileds ? dev->frame_size>>1 : dev->frame_size; */ + dev->field_size = dev->frame_size >> 1; dev->bytesperline = dev->width * 2; dev->hscale = hscale; dev->vscale = vscale; @@ -1092,374 +1087,367 @@ static int em28xx_do_ioctl(struct inode *inode, struct file *filp, switch (cmd) { /* ---------- tv norms ---------- */ case VIDIOC_ENUMSTD: - { - struct v4l2_standard *e = arg; - unsigned int i; + { + struct v4l2_standard *e = arg; + unsigned int i; - i = e->index; - if (i >= TVNORMS) - return -EINVAL; - ret = v4l2_video_std_construct(e, tvnorms[e->index].id, - tvnorms[e->index].name); - e->index = i; - if (ret < 0) - return ret; - return 0; - } + i = e->index; + if (i >= TVNORMS) + return -EINVAL; + ret = v4l2_video_std_construct(e, tvnorms[e->index].id, + tvnorms[e->index].name); + e->index = i; + if (ret < 0) + return ret; + return 0; + } case VIDIOC_G_STD: - { - v4l2_std_id *id = arg; + { + v4l2_std_id *id = arg; - *id = dev->tvnorm->id; - return 0; - } + *id = dev->tvnorm->id; + return 0; + } case VIDIOC_S_STD: - { - v4l2_std_id *id = arg; - unsigned int i; + { + v4l2_std_id *id = arg; + unsigned int i; + for (i = 0; i < TVNORMS; i++) + if (*id == tvnorms[i].id) + break; + if (i == TVNORMS) for (i = 0; i < TVNORMS; i++) - if (*id == tvnorms[i].id) + if (*id & tvnorms[i].id) break; - if (i == TVNORMS) - for (i = 0; i < TVNORMS; i++) - if (*id & tvnorms[i].id) - break; - if (i == TVNORMS) - return -EINVAL; + if (i == TVNORMS) + return -EINVAL; - down(&dev->lock); - dev->tvnorm = &tvnorms[i]; + down(&dev->lock); + dev->tvnorm = &tvnorms[i]; - em28xx_set_norm(dev, dev->width, dev->height); + em28xx_set_norm(dev, dev->width, dev->height); - em28xx_i2c_call_clients(dev, DECODER_SET_NORM, - &tvnorms[i].mode); - em28xx_i2c_call_clients(dev, VIDIOC_S_STD, - &dev->tvnorm->id); + em28xx_i2c_call_clients(dev, DECODER_SET_NORM, + &tvnorms[i].mode); + em28xx_i2c_call_clients(dev, VIDIOC_S_STD, + &dev->tvnorm->id); - up(&dev->lock); + up(&dev->lock); - return 0; - } + return 0; + } - /* ------ input switching ---------- */ + /* ------ input switching ---------- */ case VIDIOC_ENUMINPUT: - { - struct v4l2_input *i = arg; - unsigned int n; - static const char *iname[] = { - [EM28XX_VMUX_COMPOSITE1] = "Composite1", - [EM28XX_VMUX_COMPOSITE2] = "Composite2", - [EM28XX_VMUX_COMPOSITE3] = "Composite3", - [EM28XX_VMUX_COMPOSITE4] = "Composite4", - [EM28XX_VMUX_SVIDEO] = "S-Video", - [EM28XX_VMUX_TELEVISION] = "Television", - [EM28XX_VMUX_CABLE] = "Cable TV", - [EM28XX_VMUX_DVB] = "DVB", - [EM28XX_VMUX_DEBUG] = "for debug only", - }; - - n = i->index; - if (n >= MAX_EM28XX_INPUT) - return -EINVAL; - if (0 == INPUT(n)->type) - return -EINVAL; - memset(i, 0, sizeof(*i)); - i->index = n; - i->type = V4L2_INPUT_TYPE_CAMERA; - strcpy(i->name, iname[INPUT(n)->type]); - if ((EM28XX_VMUX_TELEVISION == INPUT(n)->type) || - (EM28XX_VMUX_CABLE == INPUT(n)->type)) - i->type = V4L2_INPUT_TYPE_TUNER; - for (n = 0; n < ARRAY_SIZE(tvnorms); n++) - i->std |= tvnorms[n].id; - return 0; - } - + { + struct v4l2_input *i = arg; + unsigned int n; + static const char *iname[] = { + [EM28XX_VMUX_COMPOSITE1] = "Composite1", + [EM28XX_VMUX_COMPOSITE2] = "Composite2", + [EM28XX_VMUX_COMPOSITE3] = "Composite3", + [EM28XX_VMUX_COMPOSITE4] = "Composite4", + [EM28XX_VMUX_SVIDEO] = "S-Video", + [EM28XX_VMUX_TELEVISION] = "Television", + [EM28XX_VMUX_CABLE] = "Cable TV", + [EM28XX_VMUX_DVB] = "DVB", + [EM28XX_VMUX_DEBUG] = "for debug only", + }; + + n = i->index; + if (n >= MAX_EM28XX_INPUT) + return -EINVAL; + if (0 == INPUT(n)->type) + return -EINVAL; + memset(i, 0, sizeof(*i)); + i->index = n; + i->type = V4L2_INPUT_TYPE_CAMERA; + strcpy(i->name, iname[INPUT(n)->type]); + if ((EM28XX_VMUX_TELEVISION == INPUT(n)->type) || + (EM28XX_VMUX_CABLE == INPUT(n)->type)) + i->type = V4L2_INPUT_TYPE_TUNER; + for (n = 0; n < ARRAY_SIZE(tvnorms); n++) + i->std |= tvnorms[n].id; + return 0; + } case VIDIOC_G_INPUT: - { - int *i = arg; - *i = dev->ctl_input; - - return 0; - } + { + int *i = arg; + *i = dev->ctl_input; + return 0; + } case VIDIOC_S_INPUT: - { - int *index = arg; - - if (*index >= MAX_EM28XX_INPUT) - return -EINVAL; - if (0 == INPUT(*index)->type) - return -EINVAL; + { + int *index = arg; - down(&dev->lock); - video_mux(dev, *index); - up(&dev->lock); + if (*index >= MAX_EM28XX_INPUT) + return -EINVAL; + if (0 == INPUT(*index)->type) + return -EINVAL; - return 0; - } + down(&dev->lock); + video_mux(dev, *index); + up(&dev->lock); + return 0; + } case VIDIOC_G_AUDIO: - { - struct v4l2_audio *a = arg; - unsigned int index = a->index; + { + struct v4l2_audio *a = arg; + unsigned int index = a->index; - if (a->index > 1) - return -EINVAL; - memset(a, 0, sizeof(*a)); - index = dev->ctl_ainput; + if (a->index > 1) + return -EINVAL; + memset(a, 0, sizeof(*a)); + index = dev->ctl_ainput; - if (index == 0) { - strcpy(a->name, "Television"); - } else { - strcpy(a->name, "Line In"); - } - a->capability = V4L2_AUDCAP_STEREO; - a->index = index; - return 0; + if (index == 0) { + strcpy(a->name, "Television"); + } else { + strcpy(a->name, "Line In"); } - + a->capability = V4L2_AUDCAP_STEREO; + a->index = index; + return 0; + } case VIDIOC_S_AUDIO: - { - struct v4l2_audio *a = arg; - if (a->index != dev->ctl_ainput) - return -EINVAL; + { + struct v4l2_audio *a = arg; - return 0; - } + if (a->index != dev->ctl_ainput) + return -EINVAL; + + return 0; + } - /* --- controls ---------------------------------------------- */ + /* --- controls ---------------------------------------------- */ case VIDIOC_QUERYCTRL: - { - struct v4l2_queryctrl *qc = arg; - int i, id=qc->id; - - memset(qc,0,sizeof(*qc)); - qc->id=id; - - if (!dev->has_msp34xx) { - for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { - if (qc->id && qc->id == em28xx_qctrl[i].id) { - memcpy(qc, &(em28xx_qctrl[i]), - sizeof(*qc)); - return 0; - } - } - } - if (dev->decoder == EM28XX_TVP5150) { - em28xx_i2c_call_clients(dev,cmd,qc); - if (qc->type) - return 0; - else - return -EINVAL; - } - for (i = 0; i < ARRAY_SIZE(saa711x_qctrl); i++) { - if (qc->id && qc->id == saa711x_qctrl[i].id) { - memcpy(qc, &(saa711x_qctrl[i]), - sizeof(*qc)); + { + struct v4l2_queryctrl *qc = arg; + int i, id=qc->id; + + memset(qc,0,sizeof(*qc)); + qc->id=id; + + if (!dev->has_msp34xx) { + for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { + if (qc->id && qc->id == em28xx_qctrl[i].id) { + memcpy(qc, &(em28xx_qctrl[i]), + sizeof(*qc)); return 0; } } - - return -EINVAL; + } + if (dev->decoder == EM28XX_TVP5150) { + em28xx_i2c_call_clients(dev,cmd,qc); + if (qc->type) + return 0; + else + return -EINVAL; + } + for (i = 0; i < ARRAY_SIZE(saa711x_qctrl); i++) { + if (qc->id && qc->id == saa711x_qctrl[i].id) { + memcpy(qc, &(saa711x_qctrl[i]), + sizeof(*qc)); + return 0; + } } + return -EINVAL; + } case VIDIOC_G_CTRL: - { - struct v4l2_control *ctrl = arg; - int retval=-EINVAL; - - if (!dev->has_msp34xx) - retval=em28xx_get_ctrl(dev, ctrl); - if (retval==-EINVAL) { - if (dev->decoder == EM28XX_TVP5150) { - em28xx_i2c_call_clients(dev,cmd,arg); - return 0; - } + { + struct v4l2_control *ctrl = arg; + int retval=-EINVAL; - return saa711x_get_ctrl(dev, ctrl); - } else return retval; - } + if (!dev->has_msp34xx) + retval=em28xx_get_ctrl(dev, ctrl); + if (retval==-EINVAL) { + if (dev->decoder == EM28XX_TVP5150) { + em28xx_i2c_call_clients(dev,cmd,arg); + return 0; + } + return saa711x_get_ctrl(dev, ctrl); + } else return retval; + } case VIDIOC_S_CTRL: - { - struct v4l2_control *ctrl = arg; - u8 i; - - if (!dev->has_msp34xx){ - for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { - if (ctrl->id == em28xx_qctrl[i].id) { - if (ctrl->value < - em28xx_qctrl[i].minimum - || ctrl->value > - em28xx_qctrl[i].maximum) - return -ERANGE; - return em28xx_set_ctrl(dev, ctrl); - } + { + struct v4l2_control *ctrl = arg; + u8 i; + + if (!dev->has_msp34xx){ + for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { + if (ctrl->id == em28xx_qctrl[i].id) { + if (ctrl->value < + em28xx_qctrl[i].minimum + || ctrl->value > + em28xx_qctrl[i].maximum) + return -ERANGE; + return em28xx_set_ctrl(dev, ctrl); } } + } - if (dev->decoder == EM28XX_TVP5150) { - em28xx_i2c_call_clients(dev,cmd,arg); - return 0; - } else if (!dev->has_msp34xx) { - for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { - if (ctrl->id == em28xx_qctrl[i].id) { - if (ctrl->value < - em28xx_qctrl[i].minimum - || ctrl->value > - em28xx_qctrl[i].maximum) - return -ERANGE; - return em28xx_set_ctrl(dev, ctrl); - } + if (dev->decoder == EM28XX_TVP5150) { + em28xx_i2c_call_clients(dev,cmd,arg); + return 0; + } else if (!dev->has_msp34xx) { + for (i = 0; i < ARRAY_SIZE(em28xx_qctrl); i++) { + if (ctrl->id == em28xx_qctrl[i].id) { + if (ctrl->value < + em28xx_qctrl[i].minimum + || ctrl->value > + em28xx_qctrl[i].maximum) + return -ERANGE; + return em28xx_set_ctrl(dev, ctrl); } - for (i = 0; i < ARRAY_SIZE(saa711x_qctrl); i++) { - if (ctrl->id == saa711x_qctrl[i].id) { - if (ctrl->value < - saa711x_qctrl[i].minimum - || ctrl->value > - saa711x_qctrl[i].maximum) - return -ERANGE; - return saa711x_set_ctrl(dev, ctrl); - } + } + for (i = 0; i < ARRAY_SIZE(saa711x_qctrl); i++) { + if (ctrl->id == saa711x_qctrl[i].id) { + if (ctrl->value < + saa711x_qctrl[i].minimum + || ctrl->value > + saa711x_qctrl[i].maximum) + return -ERANGE; + return saa711x_set_ctrl(dev, ctrl); } } - - return -EINVAL; } - /* --- tuner ioctls ------------------------------------------ */ + return -EINVAL; + } + /* --- tuner ioctls ------------------------------------------ */ case VIDIOC_G_TUNER: - { - struct v4l2_tuner *t = arg; - int status = 0; + { + struct v4l2_tuner *t = arg; + int status = 0; - if (0 != t->index) - return -EINVAL; + if (0 != t->index) + return -EINVAL; - memset(t, 0, sizeof(*t)); - strcpy(t->name, "Tuner"); - t->type = V4L2_TUNER_ANALOG_TV; - t->capability = V4L2_TUNER_CAP_NORM; - t->rangehigh = 0xffffffffUL; /* FIXME: set correct range */ + memset(t, 0, sizeof(*t)); + strcpy(t->name, "Tuner"); + t->type = V4L2_TUNER_ANALOG_TV; + t->capability = V4L2_TUNER_CAP_NORM; + t->rangehigh = 0xffffffffUL; /* FIXME: set correct range */ /* t->signal = 0xffff;*/ /* em28xx_i2c_call_clients(dev,VIDIOC_G_TUNER,t);*/ - /* No way to get signal strength? */ - down(&dev->lock); - em28xx_i2c_call_clients(dev, DECODER_GET_STATUS, - &status); - up(&dev->lock); - t->signal = - (status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0; - - em28xx_videodbg("VIDIO_G_TUNER: signal=%x, afc=%x\n", t->signal, - t->afc); - return 0; - } + /* No way to get signal strength? */ + down(&dev->lock); + em28xx_i2c_call_clients(dev, DECODER_GET_STATUS, + &status); + up(&dev->lock); + t->signal = + (status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0; + + em28xx_videodbg("VIDIO_G_TUNER: signal=%x, afc=%x\n", t->signal, + t->afc); + return 0; + } case VIDIOC_S_TUNER: - { - struct v4l2_tuner *t = arg; - int status = 0; + { + struct v4l2_tuner *t = arg; + int status = 0; - if (0 != t->index) - return -EINVAL; - memset(t, 0, sizeof(*t)); - strcpy(t->name, "Tuner"); - t->type = V4L2_TUNER_ANALOG_TV; - t->capability = V4L2_TUNER_CAP_NORM; - t->rangehigh = 0xffffffffUL; /* FIXME: set correct range */ + if (0 != t->index) + return -EINVAL; + memset(t, 0, sizeof(*t)); + strcpy(t->name, "Tuner"); + t->type = V4L2_TUNER_ANALOG_TV; + t->capability = V4L2_TUNER_CAP_NORM; + t->rangehigh = 0xffffffffUL; /* FIXME: set correct range */ /* t->signal = 0xffff; */ - /* No way to get signal strength? */ - down(&dev->lock); - em28xx_i2c_call_clients(dev, DECODER_GET_STATUS, - &status); - up(&dev->lock); - t->signal = - (status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0; - - em28xx_videodbg("VIDIO_S_TUNER: signal=%x, afc=%x\n", - t->signal, t->afc); - return 0; - } + /* No way to get signal strength? */ + down(&dev->lock); + em28xx_i2c_call_clients(dev, DECODER_GET_STATUS, + &status); + up(&dev->lock); + t->signal = + (status & DECODER_STATUS_GOOD) != 0 ? 0xffff : 0; + + em28xx_videodbg("VIDIO_S_TUNER: signal=%x, afc=%x\n", + t->signal, t->afc); + return 0; + } case VIDIOC_G_FREQUENCY: - { - struct v4l2_frequency *f = arg; + { + struct v4l2_frequency *f = arg; - memset(f, 0, sizeof(*f)); - f->type = V4L2_TUNER_ANALOG_TV; - f->frequency = dev->ctl_freq; + memset(f, 0, sizeof(*f)); + f->type = V4L2_TUNER_ANALOG_TV; + f->frequency = dev->ctl_freq; - return 0; - } + return 0; + } case VIDIOC_S_FREQUENCY: - { - struct v4l2_frequency *f = arg; - - if (0 != f->tuner) - return -EINVAL; + { + struct v4l2_frequency *f = arg; - if (V4L2_TUNER_ANALOG_TV != f->type) - return -EINVAL; + if (0 != f->tuner) + return -EINVAL; - down(&dev->lock); - dev->ctl_freq = f->frequency; - em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, f); - up(&dev->lock); - return 0; - } + if (V4L2_TUNER_ANALOG_TV != f->type) + return -EINVAL; + down(&dev->lock); + dev->ctl_freq = f->frequency; + em28xx_i2c_call_clients(dev, VIDIOC_S_FREQUENCY, f); + up(&dev->lock); + return 0; + } case VIDIOC_CROPCAP: - { - struct v4l2_cropcap *cc = arg; + { + struct v4l2_cropcap *cc = arg; - if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) - return -EINVAL; - cc->bounds.left = 0; - cc->bounds.top = 0; - cc->bounds.width = dev->width; - cc->bounds.height = dev->height; - cc->defrect = cc->bounds; - cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */ - cc->pixelaspect.denominator = 59; - return 0; - } + if (cc->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + return -EINVAL; + cc->bounds.left = 0; + cc->bounds.top = 0; + cc->bounds.width = dev->width; + cc->bounds.height = dev->height; + cc->defrect = cc->bounds; + cc->pixelaspect.numerator = 54; /* 4:3 FIXME: remove magic numbers */ + cc->pixelaspect.denominator = 59; + return 0; + } case VIDIOC_STREAMON: - { - int *type = arg; + { + int *type = arg; - if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE - || dev->io != IO_MMAP) - return -EINVAL; + if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE + || dev->io != IO_MMAP) + return -EINVAL; - if (list_empty(&dev->inqueue)) - return -EINVAL; + if (list_empty(&dev->inqueue)) + return -EINVAL; - dev->stream = STREAM_ON; /* FIXME: Start video capture here? */ + dev->stream = STREAM_ON; /* FIXME: Start video capture here? */ - em28xx_videodbg("VIDIOC_STREAMON: starting stream\n"); + em28xx_videodbg("VIDIOC_STREAMON: starting stream\n"); - return 0; - } + return 0; + } case VIDIOC_STREAMOFF: - { - int *type = arg; - int ret; - - if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE - || dev->io != IO_MMAP) - return -EINVAL; + { + int *type = arg; + int ret; - if (dev->stream == STREAM_ON) { - em28xx_videodbg ("VIDIOC_STREAMOFF: interrupting stream\n"); - if ((ret = em28xx_stream_interrupt(dev))) - return ret; - } - em28xx_empty_framequeues(dev); + if (*type != V4L2_BUF_TYPE_VIDEO_CAPTURE + || dev->io != IO_MMAP) + return -EINVAL; - return 0; + if (dev->stream == STREAM_ON) { + em28xx_videodbg ("VIDIOC_STREAMOFF: interrupting stream\n"); + if ((ret = em28xx_stream_interrupt(dev))) + return ret; } + em28xx_empty_framequeues(dev); + + return 0; + } default: return v4l_compat_translate_ioctl(inode, filp, cmd, arg, driver_ioctl); @@ -1489,40 +1477,38 @@ static int em28xx_video_do_ioctl(struct inode *inode, struct file *filp, /* --- capabilities ------------------------------------------ */ case VIDIOC_QUERYCAP: { - struct v4l2_capability *cap = arg; - - memset(cap, 0, sizeof(*cap)); - strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); - strlcpy(cap->card, em28xx_boards[dev->model].name, - sizeof(cap->card)); - strlcpy(cap->bus_info, dev->udev->dev.bus_id, - sizeof(cap->bus_info)); - cap->version = EM28XX_VERSION_CODE; - cap->capabilities = - V4L2_CAP_SLICED_VBI_CAPTURE | - V4L2_CAP_VIDEO_CAPTURE | - V4L2_CAP_AUDIO | - V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; - if (dev->has_tuner) - cap->capabilities |= V4L2_CAP_TUNER; - return 0; - } - - /* --- capture ioctls ---------------------------------------- */ + struct v4l2_capability *cap = arg; + + memset(cap, 0, sizeof(*cap)); + strlcpy(cap->driver, "em28xx", sizeof(cap->driver)); + strlcpy(cap->card, em28xx_boards[dev->model].name, + sizeof(cap->card)); + strlcpy(cap->bus_info, dev->udev->dev.bus_id, + sizeof(cap->bus_info)); + cap->version = EM28XX_VERSION_CODE; + cap->capabilities = + V4L2_CAP_SLICED_VBI_CAPTURE | + V4L2_CAP_VIDEO_CAPTURE | + V4L2_CAP_AUDIO | + V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; + if (dev->has_tuner) + cap->capabilities |= V4L2_CAP_TUNER; + return 0; + } + /* --- capture ioctls ---------------------------------------- */ case VIDIOC_ENUM_FMT: - { - struct v4l2_fmtdesc *fmtd = arg; - - if (fmtd->index != 0) - return -EINVAL; - memset(fmtd, 0, sizeof(*fmtd)); - fmtd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; - strcpy(fmtd->description, "Packed YUY2"); - fmtd->pixelformat = V4L2_PIX_FMT_YUYV; - memset(fmtd->reserved, 0, sizeof(fmtd->reserved)); - return 0; - } + { + struct v4l2_fmtdesc *fmtd = arg; + if (fmtd->index != 0) + return -EINVAL; + memset(fmtd, 0, sizeof(*fmtd)); + fmtd->type = V4L2_BUF_TYPE_VIDEO_CAPTURE; + strcpy(fmtd->description, "Packed YUY2"); + fmtd->pixelformat = V4L2_PIX_FMT_YUYV; + memset(fmtd->reserved, 0, sizeof(fmtd->reserved)); + return 0; + } case VIDIOC_G_FMT: return em28xx_get_fmt(dev, (struct v4l2_format *) arg); @@ -1531,131 +1517,130 @@ static int em28xx_video_do_ioctl(struct inode *inode, struct file *filp, return em28xx_set_fmt(dev, cmd, (struct v4l2_format *)arg); case VIDIOC_REQBUFS: - { - struct v4l2_requestbuffers *rb = arg; - u32 i; - int ret; - - if (rb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || - rb->memory != V4L2_MEMORY_MMAP) - return -EINVAL; + { + struct v4l2_requestbuffers *rb = arg; + u32 i; + int ret; - if (dev->io == IO_READ) { - em28xx_videodbg ("method is set to read;" - " close and open the device again to" - " choose the mmap I/O method\n"); - return -EINVAL; - } + if (rb->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + rb->memory != V4L2_MEMORY_MMAP) + return -EINVAL; - for (i = 0; i < dev->num_frames; i++) - if (dev->frame[i].vma_use_count) { - em28xx_videodbg ("VIDIOC_REQBUFS failed; previous buffers are still mapped\n"); - return -EINVAL; - } + if (dev->io == IO_READ) { + em28xx_videodbg ("method is set to read;" + " close and open the device again to" + " choose the mmap I/O method\n"); + return -EINVAL; + } - if (dev->stream == STREAM_ON) { - em28xx_videodbg("VIDIOC_REQBUFS: interrupting stream\n"); - if ((ret = em28xx_stream_interrupt(dev))) - return ret; + for (i = 0; i < dev->num_frames; i++) + if (dev->frame[i].vma_use_count) { + em28xx_videodbg ("VIDIOC_REQBUFS failed; previous buffers are still mapped\n"); + return -EINVAL; } - em28xx_empty_framequeues(dev); + if (dev->stream == STREAM_ON) { + em28xx_videodbg("VIDIOC_REQBUFS: interrupting stream\n"); + if ((ret = em28xx_stream_interrupt(dev))) + return ret; + } - em28xx_release_buffers(dev); - if (rb->count) - rb->count = - em28xx_request_buffers(dev, rb->count); + em28xx_empty_framequeues(dev); - dev->frame_current = NULL; + em28xx_release_buffers(dev); + if (rb->count) + rb->count = + em28xx_request_buffers(dev, rb->count); - em28xx_videodbg ("VIDIOC_REQBUFS: setting io method to mmap: num bufs %i\n", - rb->count); - dev->io = rb->count ? IO_MMAP : IO_NONE; - return 0; - } + dev->frame_current = NULL; + em28xx_videodbg ("VIDIOC_REQBUFS: setting io method to mmap: num bufs %i\n", + rb->count); + dev->io = rb->count ? IO_MMAP : IO_NONE; + return 0; + } case VIDIOC_QUERYBUF: - { - struct v4l2_buffer *b = arg; + { + struct v4l2_buffer *b = arg; - if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || - b->index >= dev->num_frames || dev->io != IO_MMAP) - return -EINVAL; + if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + b->index >= dev->num_frames || dev->io != IO_MMAP) + return -EINVAL; - memcpy(b, &dev->frame[b->index].buf, sizeof(*b)); + memcpy(b, &dev->frame[b->index].buf, sizeof(*b)); - if (dev->frame[b->index].vma_use_count) { - b->flags |= V4L2_BUF_FLAG_MAPPED; - } - if (dev->frame[b->index].state == F_DONE) - b->flags |= V4L2_BUF_FLAG_DONE; - else if (dev->frame[b->index].state != F_UNUSED) - b->flags |= V4L2_BUF_FLAG_QUEUED; - return 0; + if (dev->frame[b->index].vma_use_count) { + b->flags |= V4L2_BUF_FLAG_MAPPED; } + if (dev->frame[b->index].state == F_DONE) + b->flags |= V4L2_BUF_FLAG_DONE; + else if (dev->frame[b->index].state != F_UNUSED) + b->flags |= V4L2_BUF_FLAG_QUEUED; + return 0; + } case VIDIOC_QBUF: - { - struct v4l2_buffer *b = arg; - unsigned long lock_flags; + { + struct v4l2_buffer *b = arg; + unsigned long lock_flags; - if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || - b->index >= dev->num_frames || dev->io != IO_MMAP) { - return -EINVAL; - } + if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE || + b->index >= dev->num_frames || dev->io != IO_MMAP) { + return -EINVAL; + } - if (dev->frame[b->index].state != F_UNUSED) { - return -EAGAIN; - } - dev->frame[b->index].state = F_QUEUED; + if (dev->frame[b->index].state != F_UNUSED) { + return -EAGAIN; + } + dev->frame[b->index].state = F_QUEUED; - /* add frame to fifo */ - spin_lock_irqsave(&dev->queue_lock, lock_flags); - list_add_tail(&dev->frame[b->index].frame, - &dev->inqueue); - spin_unlock_irqrestore(&dev->queue_lock, lock_flags); + /* add frame to fifo */ + spin_lock_irqsave(&dev->queue_lock, lock_flags); + list_add_tail(&dev->frame[b->index].frame, + &dev->inqueue); + spin_unlock_irqrestore(&dev->queue_lock, lock_flags); - return 0; - } + return 0; + } case VIDIOC_DQBUF: - { - struct v4l2_buffer *b = arg; - struct em28xx_frame_t *f; - unsigned long lock_flags; - int ret = 0; + { + struct v4l2_buffer *b = arg; + struct em28xx_frame_t *f; + unsigned long lock_flags; + int ret = 0; - if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE - || dev->io != IO_MMAP) - return -EINVAL; + if (b->type != V4L2_BUF_TYPE_VIDEO_CAPTURE + || dev->io != IO_MMAP) + return -EINVAL; - if (list_empty(&dev->outqueue)) { - if (dev->stream == STREAM_OFF) - return -EINVAL; - if (filp->f_flags & O_NONBLOCK) - return -EAGAIN; - ret = wait_event_interruptible - (dev->wait_frame, - (!list_empty(&dev->outqueue)) || - (dev->state & DEV_DISCONNECTED)); - if (ret) - return ret; - if (dev->state & DEV_DISCONNECTED) - return -ENODEV; - } + if (list_empty(&dev->outqueue)) { + if (dev->stream == STREAM_OFF) + return -EINVAL; + if (filp->f_flags & O_NONBLOCK) + return -EAGAIN; + ret = wait_event_interruptible + (dev->wait_frame, + (!list_empty(&dev->outqueue)) || + (dev->state & DEV_DISCONNECTED)); + if (ret) + return ret; + if (dev->state & DEV_DISCONNECTED) + return -ENODEV; + } - spin_lock_irqsave(&dev->queue_lock, lock_flags); - f = list_entry(dev->outqueue.next, - struct em28xx_frame_t, frame); - list_del(dev->outqueue.next); - spin_unlock_irqrestore(&dev->queue_lock, lock_flags); + spin_lock_irqsave(&dev->queue_lock, lock_flags); + f = list_entry(dev->outqueue.next, + struct em28xx_frame_t, frame); + list_del(dev->outqueue.next); + spin_unlock_irqrestore(&dev->queue_lock, lock_flags); - f->state = F_UNUSED; - memcpy(b, &f->buf, sizeof(*b)); + f->state = F_UNUSED; + memcpy(b, &f->buf, sizeof(*b)); - if (f->vma_use_count) - b->flags |= V4L2_BUF_FLAG_MAPPED; + if (f->vma_use_count) + b->flags |= V4L2_BUF_FLAG_MAPPED; - return 0; - } + return 0; + } default: return em28xx_do_ioctl(inode, filp, dev, cmd, arg, em28xx_video_do_ioctl); |