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V4L/DVB (6346): ivtvfb: YUV output size fix when ivtvfb is not loaded
If the ivtvfb module isn't loaded, the valid YUV output area should be set to full-screen. This patch fixes the case where the valid output area was not reset when the output broadcast format was changed from NTSC to PAL. This resulted in output being limited to the top 480 lines of the display. Signed-off-by: Ian Armstrong <ian@iarmst.demon.co.uk> Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Ian Armstrong
Mauro Carvalho Chehab
parent
0bfeb04a9f
commit
195b125251
@ -857,95 +857,101 @@ void ivtv_yuv_work_handler (struct ivtv *itv)
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static void ivtv_yuv_init (struct ivtv *itv)
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{
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struct yuv_playback_info *yi = &itv->yuv_info;
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IVTV_DEBUG_YUV("ivtv_yuv_init\n");
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/* Take a snapshot of the current register settings */
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itv->yuv_info.reg_2834 = read_reg(0x02834);
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itv->yuv_info.reg_2838 = read_reg(0x02838);
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itv->yuv_info.reg_283c = read_reg(0x0283c);
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itv->yuv_info.reg_2840 = read_reg(0x02840);
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itv->yuv_info.reg_2844 = read_reg(0x02844);
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itv->yuv_info.reg_2848 = read_reg(0x02848);
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itv->yuv_info.reg_2854 = read_reg(0x02854);
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itv->yuv_info.reg_285c = read_reg(0x0285c);
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itv->yuv_info.reg_2864 = read_reg(0x02864);
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itv->yuv_info.reg_2870 = read_reg(0x02870);
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itv->yuv_info.reg_2874 = read_reg(0x02874);
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itv->yuv_info.reg_2898 = read_reg(0x02898);
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itv->yuv_info.reg_2890 = read_reg(0x02890);
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yi->reg_2834 = read_reg(0x02834);
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yi->reg_2838 = read_reg(0x02838);
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yi->reg_283c = read_reg(0x0283c);
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yi->reg_2840 = read_reg(0x02840);
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yi->reg_2844 = read_reg(0x02844);
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yi->reg_2848 = read_reg(0x02848);
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yi->reg_2854 = read_reg(0x02854);
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yi->reg_285c = read_reg(0x0285c);
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yi->reg_2864 = read_reg(0x02864);
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yi->reg_2870 = read_reg(0x02870);
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yi->reg_2874 = read_reg(0x02874);
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yi->reg_2898 = read_reg(0x02898);
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yi->reg_2890 = read_reg(0x02890);
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itv->yuv_info.reg_289c = read_reg(0x0289c);
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itv->yuv_info.reg_2918 = read_reg(0x02918);
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itv->yuv_info.reg_291c = read_reg(0x0291c);
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itv->yuv_info.reg_2920 = read_reg(0x02920);
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itv->yuv_info.reg_2924 = read_reg(0x02924);
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itv->yuv_info.reg_2928 = read_reg(0x02928);
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itv->yuv_info.reg_292c = read_reg(0x0292c);
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itv->yuv_info.reg_2930 = read_reg(0x02930);
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itv->yuv_info.reg_2934 = read_reg(0x02934);
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itv->yuv_info.reg_2938 = read_reg(0x02938);
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itv->yuv_info.reg_293c = read_reg(0x0293c);
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itv->yuv_info.reg_2940 = read_reg(0x02940);
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itv->yuv_info.reg_2944 = read_reg(0x02944);
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itv->yuv_info.reg_2948 = read_reg(0x02948);
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itv->yuv_info.reg_294c = read_reg(0x0294c);
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itv->yuv_info.reg_2950 = read_reg(0x02950);
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itv->yuv_info.reg_2954 = read_reg(0x02954);
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itv->yuv_info.reg_2958 = read_reg(0x02958);
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itv->yuv_info.reg_295c = read_reg(0x0295c);
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itv->yuv_info.reg_2960 = read_reg(0x02960);
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itv->yuv_info.reg_2964 = read_reg(0x02964);
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itv->yuv_info.reg_2968 = read_reg(0x02968);
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itv->yuv_info.reg_296c = read_reg(0x0296c);
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itv->yuv_info.reg_2970 = read_reg(0x02970);
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yi->reg_289c = read_reg(0x0289c);
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yi->reg_2918 = read_reg(0x02918);
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yi->reg_291c = read_reg(0x0291c);
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yi->reg_2920 = read_reg(0x02920);
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yi->reg_2924 = read_reg(0x02924);
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yi->reg_2928 = read_reg(0x02928);
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yi->reg_292c = read_reg(0x0292c);
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yi->reg_2930 = read_reg(0x02930);
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yi->reg_2934 = read_reg(0x02934);
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yi->reg_2938 = read_reg(0x02938);
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yi->reg_293c = read_reg(0x0293c);
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yi->reg_2940 = read_reg(0x02940);
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yi->reg_2944 = read_reg(0x02944);
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yi->reg_2948 = read_reg(0x02948);
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yi->reg_294c = read_reg(0x0294c);
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yi->reg_2950 = read_reg(0x02950);
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yi->reg_2954 = read_reg(0x02954);
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yi->reg_2958 = read_reg(0x02958);
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yi->reg_295c = read_reg(0x0295c);
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yi->reg_2960 = read_reg(0x02960);
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yi->reg_2964 = read_reg(0x02964);
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yi->reg_2968 = read_reg(0x02968);
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yi->reg_296c = read_reg(0x0296c);
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yi->reg_2970 = read_reg(0x02970);
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itv->yuv_info.v_filter_1 = -1;
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itv->yuv_info.v_filter_2 = -1;
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itv->yuv_info.h_filter = -1;
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yi->v_filter_1 = -1;
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yi->v_filter_2 = -1;
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yi->h_filter = -1;
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/* Set some valid size info */
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itv->yuv_info.osd_x_offset = read_reg(0x02a04) & 0x00000FFF;
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itv->yuv_info.osd_y_offset = (read_reg(0x02a04) >> 16) & 0x00000FFF;
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yi->osd_x_offset = read_reg(0x02a04) & 0x00000FFF;
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yi->osd_y_offset = (read_reg(0x02a04) >> 16) & 0x00000FFF;
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/* Bit 2 of reg 2878 indicates current decoder output format
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0 : NTSC 1 : PAL */
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if (read_reg(0x2878) & 4)
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itv->yuv_info.decode_height = 576;
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yi->decode_height = 576;
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else
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itv->yuv_info.decode_height = 480;
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yi->decode_height = 480;
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/* If no visible size set, assume full size */
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if (!itv->yuv_info.osd_vis_w)
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itv->yuv_info.osd_vis_w = 720 - itv->yuv_info.osd_x_offset;
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if (!itv->yuv_info.osd_vis_h) {
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itv->yuv_info.osd_vis_h = itv->yuv_info.decode_height - itv->yuv_info.osd_y_offset;
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if (!itv->osd_info) {
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yi->osd_vis_w = 720 - yi->osd_x_offset;
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yi->osd_vis_h = yi->decode_height - yi->osd_y_offset;
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} else {
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/* If output video standard has changed, requested height may
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not be legal */
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if (itv->yuv_info.osd_vis_h + itv->yuv_info.osd_y_offset > itv->yuv_info.decode_height) {
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IVTV_DEBUG_WARN("Clipping yuv output - fb size (%d) exceeds video standard limit (%d)\n",
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itv->yuv_info.osd_vis_h + itv->yuv_info.osd_y_offset,
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itv->yuv_info.decode_height);
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itv->yuv_info.osd_vis_h = itv->yuv_info.decode_height - itv->yuv_info.osd_y_offset;
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/* If no visible size set, assume full size */
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if (!yi->osd_vis_w)
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yi->osd_vis_w = 720 - yi->osd_x_offset;
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if (!yi->osd_vis_h)
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yi->osd_vis_h = yi->decode_height - yi->osd_y_offset;
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else {
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/* If output video standard has changed, requested height may
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not be legal */
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if (yi->osd_vis_h + yi->osd_y_offset > yi->decode_height) {
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IVTV_DEBUG_WARN("Clipping yuv output - fb size (%d) exceeds video standard limit (%d)\n",
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yi->osd_vis_h + yi->osd_y_offset,
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yi->decode_height);
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yi->osd_vis_h = yi->decode_height - yi->osd_y_offset;
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}
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}
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}
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/* We need a buffer for blanking when Y plane is offset - non-fatal if we can't get one */
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itv->yuv_info.blanking_ptr = kzalloc(720*16,GFP_KERNEL);
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if (itv->yuv_info.blanking_ptr) {
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itv->yuv_info.blanking_dmaptr = pci_map_single(itv->dev, itv->yuv_info.blanking_ptr, 720*16, PCI_DMA_TODEVICE);
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}
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yi->blanking_ptr = kzalloc(720*16, GFP_KERNEL);
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if (yi->blanking_ptr)
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yi->blanking_dmaptr = pci_map_single(itv->dev, yi->blanking_ptr, 720*16, PCI_DMA_TODEVICE);
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else {
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itv->yuv_info.blanking_dmaptr = 0;
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IVTV_DEBUG_WARN ("Failed to allocate yuv blanking buffer\n");
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yi->blanking_dmaptr = 0;
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IVTV_DEBUG_WARN("Failed to allocate yuv blanking buffer\n");
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}
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/* Enable YUV decoder output */
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write_reg_sync(0x01, IVTV_REG_VDM);
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set_bit(IVTV_F_I_DECODING_YUV, &itv->i_flags);
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atomic_set(&itv->yuv_info.next_dma_frame,0);
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atomic_set(&yi->next_dma_frame, 0);
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}
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int ivtv_yuv_prep_frame(struct ivtv *itv, struct ivtv_dma_frame *args)
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