diff options
author | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2023-03-02 15:57:23 +0300 |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@kernel.org> | 2023-03-20 02:27:04 +0300 |
commit | 7777694f80669cb2cdb467fc0fadf3376fbf836d (patch) | |
tree | c5e519b2dd3625fb22d8b2e0924f4071cadec16b /drivers/media/common | |
parent | d75d29eb3596cc566b08e21d1c194d6ee737be1d (diff) | |
download | linux-7777694f80669cb2cdb467fc0fadf3376fbf836d.tar.xz |
media: saa7146: drop overlay support
Destructive overlay support (i.e. where the video frame is DMA-ed
straight into a framebuffer) is effectively dead. It was a
necessary evil in the early days when computers were not fast enough
to copy SDTV video frames around, but today that's no longer a problem.
It requires access to the framebuffer memory, which is a bad idea and
very hard to do safely. In addition, in drm it is today almost
impossible to get hold of the framebuffer address.
So drop support for this.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Diffstat (limited to 'drivers/media/common')
-rw-r--r-- | drivers/media/common/saa7146/saa7146_fops.c | 26 | ||||
-rw-r--r-- | drivers/media/common/saa7146/saa7146_hlp.c | 296 | ||||
-rw-r--r-- | drivers/media/common/saa7146/saa7146_video.c | 326 |
3 files changed, 6 insertions, 642 deletions
diff --git a/drivers/media/common/saa7146/saa7146_fops.c b/drivers/media/common/saa7146/saa7146_fops.c index e9a15de6126e..08c8e73cef2c 100644 --- a/drivers/media/common/saa7146/saa7146_fops.c +++ b/drivers/media/common/saa7146/saa7146_fops.c @@ -516,28 +516,10 @@ int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv) configuration data) */ dev->ext_vv_data = ext_vv; - vv->d_clipping.cpu_addr = - dma_alloc_coherent(&dev->pci->dev, SAA7146_CLIPPING_MEM, - &vv->d_clipping.dma_handle, GFP_KERNEL); - if( NULL == vv->d_clipping.cpu_addr ) { - ERR("out of memory. aborting.\n"); - kfree(vv); - v4l2_ctrl_handler_free(hdl); - v4l2_device_unregister(&dev->v4l2_dev); - return -ENOMEM; - } - saa7146_video_uops.init(dev,vv); if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) saa7146_vbi_uops.init(dev,vv); - vv->ov_fb.fmt.width = vv->standard->h_max_out; - vv->ov_fb.fmt.height = vv->standard->v_max_out; - vv->ov_fb.fmt.pixelformat = V4L2_PIX_FMT_RGB565; - vv->ov_fb.fmt.bytesperline = 2 * vv->ov_fb.fmt.width; - vv->ov_fb.fmt.sizeimage = vv->ov_fb.fmt.bytesperline * vv->ov_fb.fmt.height; - vv->ov_fb.fmt.colorspace = V4L2_COLORSPACE_SRGB; - fmt = &vv->video_fmt; fmt->width = 384; fmt->height = 288; @@ -561,8 +543,6 @@ int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv) timer_setup(&vv->vbi_read_timeout, NULL, 0); - vv->ov_fb.capability = V4L2_FBUF_CAP_LIST_CLIPPING; - vv->ov_fb.flags = V4L2_FBUF_FLAG_PRIMARY; dev->vv_data = vv; dev->vv_callback = &vv_callback; @@ -577,8 +557,6 @@ int saa7146_vv_release(struct saa7146_dev* dev) DEB_EE("dev:%p\n", dev); v4l2_device_unregister(&dev->v4l2_dev); - dma_free_coherent(&dev->pci->dev, SAA7146_CLIPPING_MEM, - vv->d_clipping.cpu_addr, vv->d_clipping.dma_handle); v4l2_ctrl_handler_free(&dev->ctrl_handler); kfree(vv); dev->vv_data = NULL; @@ -608,7 +586,7 @@ int saa7146_register_device(struct video_device *vfd, struct saa7146_dev *dev, for (i = 0; i < dev->ext_vv_data->num_stds; i++) vfd->tvnorms |= dev->ext_vv_data->stds[i].id; strscpy(vfd->name, name, sizeof(vfd->name)); - vfd->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY | + vfd->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING; vfd->device_caps |= dev->ext_vv_data->capabilities; if (type == VFL_TYPE_VIDEO) @@ -616,7 +594,7 @@ int saa7146_register_device(struct video_device *vfd, struct saa7146_dev *dev, ~(V4L2_CAP_VBI_CAPTURE | V4L2_CAP_SLICED_VBI_OUTPUT); else vfd->device_caps &= - ~(V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY | V4L2_CAP_AUDIO); + ~(V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_AUDIO); video_set_drvdata(vfd, dev); err = video_register_device(vfd, type, -1); diff --git a/drivers/media/common/saa7146/saa7146_hlp.c b/drivers/media/common/saa7146/saa7146_hlp.c index 6c9946a402ee..6792a96d0ba3 100644 --- a/drivers/media/common/saa7146/saa7146_hlp.c +++ b/drivers/media/common/saa7146/saa7146_hlp.c @@ -306,221 +306,6 @@ static int calculate_v_scale_registers(struct saa7146_dev *dev, enum v4l2_field } /* simple bubble-sort algorithm with duplicate elimination */ -static int sort_and_eliminate(u32* values, int* count) -{ - int low = 0, high = 0, top = 0; - int cur = 0, next = 0; - - /* sanity checks */ - if( (0 > *count) || (NULL == values) ) { - return -EINVAL; - } - - /* bubble sort the first @count items of the array @values */ - for( top = *count; top > 0; top--) { - for( low = 0, high = 1; high < top; low++, high++) { - if( values[low] > values[high] ) - swap(values[low], values[high]); - } - } - - /* remove duplicate items */ - for( cur = 0, next = 1; next < *count; next++) { - if( values[cur] != values[next]) - values[++cur] = values[next]; - } - - *count = cur + 1; - - return 0; -} - -static void calculate_clipping_registers_rect(struct saa7146_dev *dev, struct saa7146_fh *fh, - struct saa7146_video_dma *vdma2, u32* clip_format, u32* arbtr_ctrl, enum v4l2_field field) -{ - struct saa7146_vv *vv = dev->vv_data; - __le32 *clipping = vv->d_clipping.cpu_addr; - - int width = vv->ov.win.w.width; - int height = vv->ov.win.w.height; - int clipcount = vv->ov.nclips; - - u32 line_list[32]; - u32 pixel_list[32]; - int numdwords = 0; - - int i = 0, j = 0; - int cnt_line = 0, cnt_pixel = 0; - - int x[32], y[32], w[32], h[32]; - - /* clear out memory */ - memset(&line_list[0], 0x00, sizeof(u32)*32); - memset(&pixel_list[0], 0x00, sizeof(u32)*32); - memset(clipping, 0x00, SAA7146_CLIPPING_MEM); - - /* fill the line and pixel-lists */ - for(i = 0; i < clipcount; i++) { - int l = 0, r = 0, t = 0, b = 0; - - x[i] = vv->ov.clips[i].c.left; - y[i] = vv->ov.clips[i].c.top; - w[i] = vv->ov.clips[i].c.width; - h[i] = vv->ov.clips[i].c.height; - - if( w[i] < 0) { - x[i] += w[i]; w[i] = -w[i]; - } - if( h[i] < 0) { - y[i] += h[i]; h[i] = -h[i]; - } - if( x[i] < 0) { - w[i] += x[i]; x[i] = 0; - } - if( y[i] < 0) { - h[i] += y[i]; y[i] = 0; - } - if( 0 != vv->vflip ) { - y[i] = height - y[i] - h[i]; - } - - l = x[i]; - r = x[i]+w[i]; - t = y[i]; - b = y[i]+h[i]; - - /* insert left/right coordinates */ - pixel_list[ 2*i ] = min_t(int, l, width); - pixel_list[(2*i)+1] = min_t(int, r, width); - /* insert top/bottom coordinates */ - line_list[ 2*i ] = min_t(int, t, height); - line_list[(2*i)+1] = min_t(int, b, height); - } - - /* sort and eliminate lists */ - cnt_line = cnt_pixel = 2*clipcount; - sort_and_eliminate( &pixel_list[0], &cnt_pixel ); - sort_and_eliminate( &line_list[0], &cnt_line ); - - /* calculate the number of used u32s */ - numdwords = max_t(int, (cnt_line+1), (cnt_pixel+1))*2; - numdwords = max_t(int, 4, numdwords); - numdwords = min_t(int, 64, numdwords); - - /* fill up cliptable */ - for(i = 0; i < cnt_pixel; i++) { - clipping[2*i] |= cpu_to_le32(pixel_list[i] << 16); - } - for(i = 0; i < cnt_line; i++) { - clipping[(2*i)+1] |= cpu_to_le32(line_list[i] << 16); - } - - /* fill up cliptable with the display infos */ - for(j = 0; j < clipcount; j++) { - - for(i = 0; i < cnt_pixel; i++) { - - if( x[j] < 0) - x[j] = 0; - - if( pixel_list[i] < (x[j] + w[j])) { - - if ( pixel_list[i] >= x[j] ) { - clipping[2*i] |= cpu_to_le32(1 << j); - } - } - } - for(i = 0; i < cnt_line; i++) { - - if( y[j] < 0) - y[j] = 0; - - if( line_list[i] < (y[j] + h[j]) ) { - - if( line_list[i] >= y[j] ) { - clipping[(2*i)+1] |= cpu_to_le32(1 << j); - } - } - } - } - - /* adjust arbitration control register */ - *arbtr_ctrl &= 0xffff00ff; - *arbtr_ctrl |= 0x00001c00; - - vdma2->base_even = vv->d_clipping.dma_handle; - vdma2->base_odd = vv->d_clipping.dma_handle; - vdma2->prot_addr = vv->d_clipping.dma_handle+((sizeof(u32))*(numdwords)); - vdma2->base_page = 0x04; - vdma2->pitch = 0x00; - vdma2->num_line_byte = (0 << 16 | (sizeof(u32))*(numdwords-1) ); - - /* set clipping-mode. this depends on the field(s) used */ - *clip_format &= 0xfffffff7; - if (V4L2_FIELD_HAS_BOTH(field)) { - *clip_format |= 0x00000008; - } else { - *clip_format |= 0x00000000; - } -} - -/* disable clipping */ -static void saa7146_disable_clipping(struct saa7146_dev *dev) -{ - u32 clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL); - - /* mask out relevant bits (=lower word)*/ - clip_format &= MASK_W1; - - /* upload clipping-registers*/ - saa7146_write(dev, CLIP_FORMAT_CTRL,clip_format); - saa7146_write(dev, MC2, (MASK_05 | MASK_21)); - - /* disable video dma2 */ - saa7146_write(dev, MC1, MASK_21); -} - -static void saa7146_set_clipping_rect(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - enum v4l2_field field = vv->ov.win.field; - struct saa7146_video_dma vdma2; - u32 clip_format; - u32 arbtr_ctrl; - - /* check clipcount, disable clipping if clipcount == 0*/ - if (vv->ov.nclips == 0) { - saa7146_disable_clipping(dev); - return; - } - - clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL); - arbtr_ctrl = saa7146_read(dev, PCI_BT_V1); - - calculate_clipping_registers_rect(dev, fh, &vdma2, &clip_format, &arbtr_ctrl, field); - - /* set clipping format */ - clip_format &= 0xffff0008; - clip_format |= (SAA7146_CLIPPING_RECT << 4); - - /* prepare video dma2 */ - saa7146_write(dev, BASE_EVEN2, vdma2.base_even); - saa7146_write(dev, BASE_ODD2, vdma2.base_odd); - saa7146_write(dev, PROT_ADDR2, vdma2.prot_addr); - saa7146_write(dev, BASE_PAGE2, vdma2.base_page); - saa7146_write(dev, PITCH2, vdma2.pitch); - saa7146_write(dev, NUM_LINE_BYTE2, vdma2.num_line_byte); - - /* prepare the rest */ - saa7146_write(dev, CLIP_FORMAT_CTRL,clip_format); - saa7146_write(dev, PCI_BT_V1, arbtr_ctrl); - - /* upload clip_control-register, clipping-registers, enable video dma2 */ - saa7146_write(dev, MC2, (MASK_05 | MASK_21 | MASK_03 | MASK_19)); - saa7146_write(dev, MC1, (MASK_05 | MASK_21)); -} - static void saa7146_set_window(struct saa7146_dev *dev, int width, int height, enum v4l2_field field) { struct saa7146_vv *vv = dev->vv_data; @@ -556,62 +341,6 @@ static void saa7146_set_window(struct saa7146_dev *dev, int width, int height, e saa7146_write(dev, MC2, (MASK_05 | MASK_06 | MASK_21 | MASK_22) ); } -/* calculate the new memory offsets for a desired position */ -static void saa7146_set_position(struct saa7146_dev *dev, int w_x, int w_y, int w_height, enum v4l2_field field, u32 pixelformat) -{ - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev, pixelformat); - - int b_depth = vv->ov_fmt->depth; - int b_bpl = vv->ov_fb.fmt.bytesperline; - /* The unsigned long cast is to remove a 64-bit compile warning since - it looks like a 64-bit address is cast to a 32-bit value, even - though the base pointer is really a 32-bit physical address that - goes into a 32-bit DMA register. - FIXME: might not work on some 64-bit platforms, but see the FIXME - in struct v4l2_framebuffer (videodev2.h) for that. - */ - u32 base = (u32)(unsigned long)vv->ov_fb.base; - - struct saa7146_video_dma vdma1; - - /* calculate memory offsets for picture, look if we shall top-down-flip */ - vdma1.pitch = 2*b_bpl; - if ( 0 == vv->vflip ) { - vdma1.base_even = base + (w_y * (vdma1.pitch/2)) + (w_x * (b_depth / 8)); - vdma1.base_odd = vdma1.base_even + (vdma1.pitch / 2); - vdma1.prot_addr = vdma1.base_even + (w_height * (vdma1.pitch / 2)); - } - else { - vdma1.base_even = base + ((w_y+w_height) * (vdma1.pitch/2)) + (w_x * (b_depth / 8)); - vdma1.base_odd = vdma1.base_even - (vdma1.pitch / 2); - vdma1.prot_addr = vdma1.base_odd - (w_height * (vdma1.pitch / 2)); - } - - if (V4L2_FIELD_HAS_BOTH(field)) { - } else if (field == V4L2_FIELD_ALTERNATE) { - /* fixme */ - vdma1.base_odd = vdma1.prot_addr; - vdma1.pitch /= 2; - } else if (field == V4L2_FIELD_TOP) { - vdma1.base_odd = vdma1.prot_addr; - vdma1.pitch /= 2; - } else if (field == V4L2_FIELD_BOTTOM) { - vdma1.base_odd = vdma1.base_even; - vdma1.base_even = vdma1.prot_addr; - vdma1.pitch /= 2; - } - - if ( 0 != vv->vflip ) { - vdma1.pitch *= -1; - } - - vdma1.base_page = sfmt->swap; - vdma1.num_line_byte = (vv->standard->v_field<<16)+vv->standard->h_pixels; - - saa7146_write_out_dma(dev, 1, &vdma1); -} - static void saa7146_set_output_format(struct saa7146_dev *dev, unsigned long palette) { u32 clip_format = saa7146_read(dev, CLIP_FORMAT_CTRL); @@ -645,30 +374,6 @@ void saa7146_set_hps_source_and_sync(struct saa7146_dev *dev, int source, int sy } EXPORT_SYMBOL_GPL(saa7146_set_hps_source_and_sync); -int saa7146_enable_overlay(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - - saa7146_set_window(dev, vv->ov.win.w.width, vv->ov.win.w.height, vv->ov.win.field); - saa7146_set_position(dev, vv->ov.win.w.left, vv->ov.win.w.top, vv->ov.win.w.height, vv->ov.win.field, vv->ov_fmt->pixelformat); - saa7146_set_output_format(dev, vv->ov_fmt->trans); - saa7146_set_clipping_rect(fh); - - /* enable video dma1 */ - saa7146_write(dev, MC1, (MASK_06 | MASK_22)); - return 0; -} - -void saa7146_disable_overlay(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - - /* disable clipping + video dma1 */ - saa7146_disable_clipping(dev); - saa7146_write(dev, MC1, MASK_22); -} - void saa7146_write_out_dma(struct saa7146_dev* dev, int which, struct saa7146_video_dma* vdma) { int where = 0; @@ -1011,7 +716,6 @@ void saa7146_set_capture(struct saa7146_dev *dev, struct saa7146_buf *buf, struc saa7146_set_window(dev, buf->fmt->width, buf->fmt->height, buf->fmt->field); saa7146_set_output_format(dev, sfmt->trans); - saa7146_disable_clipping(dev); if ( vv->last_field == V4L2_FIELD_INTERLACED ) { } else if ( vv->last_field == V4L2_FIELD_TOP ) { diff --git a/drivers/media/common/saa7146/saa7146_video.c b/drivers/media/common/saa7146/saa7146_video.c index 2296765079a4..27c97218ee53 100644 --- a/drivers/media/common/saa7146/saa7146_video.c +++ b/drivers/media/common/saa7146/saa7146_video.c @@ -14,9 +14,6 @@ MODULE_PARM_DESC(max_memory, "maximum memory usage for capture buffers (default: #define IS_CAPTURE_ACTIVE(fh) \ (((vv->video_status & STATUS_CAPTURE) != 0) && (vv->video_fh == fh)) -#define IS_OVERLAY_ACTIVE(fh) \ - (((vv->video_status & STATUS_OVERLAY) != 0) && (vv->video_fh == fh)) - /* format descriptions for capture and preview */ static struct saa7146_format formats[] = { { @@ -91,105 +88,6 @@ struct saa7146_format* saa7146_format_by_fourcc(struct saa7146_dev *dev, int fou return NULL; } -static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f); - -int saa7146_start_preview(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - struct v4l2_format fmt; - int ret = 0, err = 0; - - DEB_EE("dev:%p, fh:%p\n", dev, fh); - - /* check if we have overlay information */ - if (vv->ov.fh == NULL) { - DEB_D("no overlay data available. try S_FMT first.\n"); - return -EAGAIN; - } - - /* check if streaming capture is running */ - if (IS_CAPTURE_ACTIVE(fh) != 0) { - DEB_D("streaming capture is active\n"); - return -EBUSY; - } - - /* check if overlay is running */ - if (IS_OVERLAY_ACTIVE(fh) != 0) { - if (vv->video_fh == fh) { - DEB_D("overlay is already active\n"); - return 0; - } - DEB_D("overlay is already active in another open\n"); - return -EBUSY; - } - - if (0 == saa7146_res_get(fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP)) { - DEB_D("cannot get necessary overlay resources\n"); - return -EBUSY; - } - - fmt.fmt.win = vv->ov.win; - err = vidioc_try_fmt_vid_overlay(NULL, fh, &fmt); - if (0 != err) { - saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP); - return -EBUSY; - } - vv->ov.win = fmt.fmt.win; - - DEB_D("%dx%d+%d+%d 0x%08x field=%s\n", - vv->ov.win.w.width, vv->ov.win.w.height, - vv->ov.win.w.left, vv->ov.win.w.top, - vv->ov_fmt->pixelformat, v4l2_field_names[vv->ov.win.field]); - - if (0 != (ret = saa7146_enable_overlay(fh))) { - DEB_D("enabling overlay failed: %d\n", ret); - saa7146_res_free(vv->video_fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP); - return ret; - } - - vv->video_status = STATUS_OVERLAY; - vv->video_fh = fh; - - return 0; -} -EXPORT_SYMBOL_GPL(saa7146_start_preview); - -int saa7146_stop_preview(struct saa7146_fh *fh) -{ - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - - DEB_EE("dev:%p, fh:%p\n", dev, fh); - - /* check if streaming capture is running */ - if (IS_CAPTURE_ACTIVE(fh) != 0) { - DEB_D("streaming capture is active\n"); - return -EBUSY; - } - - /* check if overlay is running at all */ - if ((vv->video_status & STATUS_OVERLAY) == 0) { - DEB_D("no active overlay\n"); - return 0; - } - - if (vv->video_fh != fh) { - DEB_D("overlay is active, but in another open\n"); - return -EBUSY; - } - - vv->video_status = 0; - vv->video_fh = NULL; - - saa7146_disable_overlay(fh); - - saa7146_res_free(fh, RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP); - - return 0; -} -EXPORT_SYMBOL_GPL(saa7146_stop_preview); - /********************************************************************************/ /* common pagetable functions */ @@ -319,7 +217,7 @@ static int video_begin(struct saa7146_fh *fh) struct saa7146_vv *vv = dev->vv_data; struct saa7146_format *fmt = NULL; unsigned int resource; - int ret = 0, err = 0; + int ret = 0; DEB_EE("dev:%p, fh:%p\n", dev, fh); @@ -332,16 +230,6 @@ static int video_begin(struct saa7146_fh *fh) return -EBUSY; } - if ((vv->video_status & STATUS_OVERLAY) != 0) { - DEB_S("warning: suspending overlay video for streaming capture\n"); - vv->ov_suspend = vv->video_fh; - err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */ - if (0 != err) { - DEB_D("suspending video failed. aborting\n"); - return err; - } - } - fmt = saa7146_format_by_fourcc(dev, vv->video_fmt.pixelformat); /* we need to have a valid format set here */ if (!fmt) @@ -356,10 +244,6 @@ static int video_begin(struct saa7146_fh *fh) ret = saa7146_res_get(fh, resource); if (0 == ret) { DEB_S("cannot get capture resource %d\n", resource); - if (vv->ov_suspend != NULL) { - saa7146_start_preview(vv->ov_suspend); - vv->ov_suspend = NULL; - } return -EBUSY; } @@ -429,11 +313,6 @@ static int video_end(struct saa7146_fh *fh, struct file *file) saa7146_res_free(fh, resource); - if (vv->ov_suspend != NULL) { - saa7146_start_preview(vv->ov_suspend); - vv->ov_suspend = NULL; - } - return 0; } @@ -443,64 +322,13 @@ static int vidioc_querycap(struct file *file, void *fh, struct v4l2_capability * strscpy((char *)cap->driver, "saa7146 v4l2", sizeof(cap->driver)); strscpy((char *)cap->card, dev->ext->name, sizeof(cap->card)); - cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_VIDEO_OVERLAY | + cap->capabilities = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE | V4L2_CAP_STREAMING | V4L2_CAP_DEVICE_CAPS; cap->capabilities |= dev->ext_vv_data->capabilities; return 0; } -static int vidioc_g_fbuf(struct file *file, void *fh, struct v4l2_framebuffer *fb) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - - *fb = vv->ov_fb; - fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING; - fb->flags = V4L2_FBUF_FLAG_PRIMARY; - return 0; -} - -static int vidioc_s_fbuf(struct file *file, void *fh, const struct v4l2_framebuffer *fb) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - struct saa7146_format *fmt; - - DEB_EE("VIDIOC_S_FBUF\n"); - - if (!capable(CAP_SYS_ADMIN) && !capable(CAP_SYS_RAWIO)) - return -EPERM; - - /* check args */ - fmt = saa7146_format_by_fourcc(dev, fb->fmt.pixelformat); - if (NULL == fmt) - return -EINVAL; - - /* planar formats are not allowed for overlay video, clipping and video dma would clash */ - if (fmt->flags & FORMAT_IS_PLANAR) - DEB_S("planar pixelformat '%4.4s' not allowed for overlay\n", - (char *)&fmt->pixelformat); - - /* check if overlay is running */ - if (IS_OVERLAY_ACTIVE(fh) != 0) { - if (vv->video_fh != fh) { - DEB_D("refusing to change framebuffer information while overlay is active in another open\n"); - return -EBUSY; - } - } - - /* ok, accept it */ - vv->ov_fb = *fb; - vv->ov_fmt = fmt; - - if (vv->ov_fb.fmt.bytesperline < vv->ov_fb.fmt.width) { - vv->ov_fb.fmt.bytesperline = vv->ov_fb.fmt.width * fmt->depth / 8; - DEB_D("setting bytesperline to %d\n", vv->ov_fb.fmt.bytesperline); - } - return 0; -} - static int vidioc_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdesc *f) { if (f->index >= ARRAY_SIZE(formats)) @@ -557,13 +385,6 @@ int saa7146_s_ctrl(struct v4l2_ctrl *ctrl) default: return -EINVAL; } - - if ((vv->video_status & STATUS_OVERLAY) != 0) { /* CHECK: && (vv->video_fh == fh)) */ - struct saa7146_fh *fh = vv->video_fh; - - saa7146_stop_preview(fh); - saa7146_start_preview(fh); - } return 0; } @@ -590,15 +411,6 @@ static int vidioc_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format return 0; } -static int vidioc_g_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - - f->fmt.win = vv->ov.win; - return 0; -} - static int vidioc_g_fmt_vbi_cap(struct file *file, void *fh, struct v4l2_format *f) { struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; @@ -673,66 +485,6 @@ static int vidioc_try_fmt_vid_cap(struct file *file, void *fh, struct v4l2_forma return 0; } - -static int vidioc_try_fmt_vid_overlay(struct file *file, void *fh, struct v4l2_format *f) -{ - struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; - struct saa7146_vv *vv = dev->vv_data; - struct v4l2_window *win = &f->fmt.win; - enum v4l2_field field; - int maxw, maxh; - - DEB_EE("dev:%p\n", dev); - - if (NULL == vv->ov_fb.base) { - DEB_D("no fb base set\n"); - return -EINVAL; - } - if (NULL == vv->ov_fmt) { - DEB_D("no fb fmt set\n"); - return -EINVAL; - } - if (win->w.width < 48 || win->w.height < 32) { - DEB_D("min width/height. (%d,%d)\n", - win->w.width, win->w.height); - return -EINVAL; - } - if (win->clipcount > 16) { - DEB_D("clipcount too big\n"); - return -EINVAL; - } - - field = win->field; - maxw = vv->standard->h_max_out; - maxh = vv->standard->v_max_out; - - if (V4L2_FIELD_ANY == field) { - field = (win->w.height > maxh / 2) - ? V4L2_FIELD_INTERLACED - : V4L2_FIELD_TOP; - } - switch (field) { - case V4L2_FIELD_TOP: - case V4L2_FIELD_BOTTOM: - case V4L2_FIELD_ALTERNATE: - maxh = maxh / 2; - break; - case V4L2_FIELD_INTERLACED: - break; - default: - DEB_D("no known field mode '%d'\n", field); - return -EINVAL; - } - - win->field = field; - if (win->w.width > maxw) - win->w.width = maxw; - if (win->w.height > maxh) - win->w.height = maxh; - - return 0; -} - static int vidioc_s_fmt_vid_cap(struct file *file, void *__fh, struct v4l2_format *f) { struct saa7146_fh *fh = __fh; @@ -754,35 +506,6 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *__fh, struct v4l2_forma return 0; } -static int vidioc_s_fmt_vid_overlay(struct file *file, void *__fh, struct v4l2_format *f) -{ - struct saa7146_fh *fh = __fh; - struct saa7146_dev *dev = fh->dev; - struct saa7146_vv *vv = dev->vv_data; - int err; - - DEB_EE("V4L2_BUF_TYPE_VIDEO_OVERLAY: dev:%p, fh:%p\n", dev, fh); - err = vidioc_try_fmt_vid_overlay(file, fh, f); - if (0 != err) - return err; - vv->ov.win = f->fmt.win; - vv->ov.nclips = f->fmt.win.clipcount; - if (vv->ov.nclips > 16) - vv->ov.nclips = 16; - memcpy(vv->ov.clips, f->fmt.win.clips, - sizeof(struct v4l2_clip) * vv->ov.nclips); - - /* vv->ov.fh is used to indicate that we have valid overlay information, too */ - vv->ov.fh = fh; - - /* check if our current overlay is active */ - if (IS_OVERLAY_ACTIVE(fh) != 0) { - saa7146_stop_preview(fh); - saa7146_start_preview(fh); - } - return 0; -} - static int vidioc_g_std(struct file *file, void *fh, v4l2_std_id *norm) { struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; @@ -815,7 +538,7 @@ static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id id) struct saa7146_dev *dev = ((struct saa7146_fh *)fh)->dev; struct saa7146_vv *vv = dev->vv_data; int found = 0; - int err, i; + int i; DEB_EE("VIDIOC_S_STD\n"); @@ -824,15 +547,6 @@ static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id id) return -EBUSY; } - if ((vv->video_status & STATUS_OVERLAY) != 0) { - vv->ov_suspend = vv->video_fh; - err = saa7146_stop_preview(vv->video_fh); /* side effect: video_status is now 0, video_fh is NULL */ - if (0 != err) { - DEB_D("suspending video failed. aborting\n"); - return err; - } - } - for (i = 0; i < dev->ext_vv_data->num_stds; i++) if (id & dev->ext_vv_data->stds[i].id) break; @@ -843,11 +557,6 @@ static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id id) found = 1; } - if (vv->ov_suspend != NULL) { - saa7146_start_preview(vv->ov_suspend); - vv->ov_suspend = NULL; - } - if (!found) { DEB_EE("VIDIOC_S_STD: standard not found\n"); return -EINVAL; @@ -857,18 +566,6 @@ static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id id) return 0; } -static int vidioc_overlay(struct file *file, void *fh, unsigned int on) -{ - int err; - - DEB_D("VIDIOC_OVERLAY on:%d\n", on); - if (on) - err = saa7146_start_preview(fh); - else - err = saa7146_stop_preview(fh); - return err; -} - static int vidioc_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *b) { struct saa7146_fh *fh = __fh; @@ -969,17 +666,10 @@ static int vidioc_streamoff(struct file *file, void *__fh, enum v4l2_buf_type ty const struct v4l2_ioctl_ops saa7146_video_ioctl_ops = { .vidioc_querycap = vidioc_querycap, .vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap, - .vidioc_enum_fmt_vid_overlay = vidioc_enum_fmt_vid_cap, .vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap, .vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap, .vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap, - .vidioc_g_fmt_vid_overlay = vidioc_g_fmt_vid_overlay, - .vidioc_try_fmt_vid_overlay = vidioc_try_fmt_vid_overlay, - .vidioc_s_fmt_vid_overlay = vidioc_s_fmt_vid_overlay, - .vidioc_overlay = vidioc_overlay, - .vidioc_g_fbuf = vidioc_g_fbuf, - .vidioc_s_fbuf = vidioc_s_fbuf, .vidioc_reqbufs = vidioc_reqbufs, .vidioc_querybuf = vidioc_querybuf, .vidioc_qbuf = vidioc_qbuf, @@ -1096,7 +786,7 @@ static int buffer_prepare(struct videobuf_queue *q, saa7146_pgtable_alloc(dev->pci, &buf->pt[0]); } - err = videobuf_iolock(q,&buf->vb, &vv->ov_fb); + err = videobuf_iolock(q, &buf->vb, NULL); if (err) goto oops; err = saa7146_pgtable_build(dev,buf); @@ -1211,8 +901,6 @@ static void video_close(struct saa7146_dev *dev, struct file *file) if (IS_CAPTURE_ACTIVE(fh) != 0) video_end(fh, file); - else if (IS_OVERLAY_ACTIVE(fh) != 0) - saa7146_stop_preview(fh); videobuf_stop(q); /* hmm, why is this function declared void? */ @@ -1268,12 +956,6 @@ static ssize_t video_read(struct file *file, char __user *data, size_t count, lo ret = video_end(fh, file); } out: - /* restart overlay if it was active before */ - if (vv->ov_suspend != NULL) { - saa7146_start_preview(vv->ov_suspend); - vv->ov_suspend = NULL; - } - return ret; } |