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drivers/media/video/ivtv/ivtv-yuv.c
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/* yuv support Copyright (C) 2007 Ian Armstrong <ian@iarmst.demon.co.uk> This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "ivtv-driver.h" |
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#include "ivtv-udma.h" |
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#include "ivtv-yuv.h" |
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/* YUV buffer offsets */ const u32 yuv_offset[IVTV_YUV_BUFFERS] = { 0x001a8600, 0x00240400, 0x002d8200, 0x00370000, 0x00029000, 0x000C0E00, 0x006B0400, 0x00748200 |
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}; |
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static int ivtv_yuv_prep_user_dma(struct ivtv *itv, struct ivtv_user_dma *dma, |
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struct ivtv_dma_frame *args) |
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{ struct ivtv_dma_page_info y_dma; struct ivtv_dma_page_info uv_dma; |
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struct yuv_playback_info *yi = &itv->yuv_info; u8 frame = yi->draw_frame; struct yuv_frame_info *f = &yi->new_frame_info[frame]; |
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int i; int y_pages, uv_pages; |
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unsigned long y_buffer_offset, uv_buffer_offset; int y_decode_height, uv_decode_height, y_size; |
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y_buffer_offset = IVTV_DECODER_OFFSET + yuv_offset[frame]; |
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uv_buffer_offset = y_buffer_offset + IVTV_YUV_BUFFER_UV_OFFSET; |
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y_decode_height = uv_decode_height = f->src_h + f->src_y; |
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if (f->offset_y) |
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y_buffer_offset += 720 * 16; if (y_decode_height & 15) y_decode_height = (y_decode_height + 16) & ~15; if (uv_decode_height & 31) uv_decode_height = (uv_decode_height + 32) & ~31; y_size = 720 * y_decode_height; /* Still in USE */ if (dma->SG_length || dma->page_count) { |
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IVTV_DEBUG_WARN ("prep_user_dma: SG_length %d page_count %d still full? ", dma->SG_length, dma->page_count); |
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return -EBUSY; } ivtv_udma_get_page_info (&y_dma, (unsigned long)args->y_source, 720 * y_decode_height); ivtv_udma_get_page_info (&uv_dma, (unsigned long)args->uv_source, 360 * uv_decode_height); /* Get user pages for DMA Xfer */ down_read(¤t->mm->mmap_sem); y_pages = get_user_pages(current, current->mm, y_dma.uaddr, y_dma.page_count, 0, 1, &dma->map[0], NULL); |
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uv_pages = 0; /* silence gcc. value is set and consumed only if: */ if (y_pages == y_dma.page_count) { uv_pages = get_user_pages(current, current->mm, uv_dma.uaddr, uv_dma.page_count, 0, 1, &dma->map[y_pages], NULL); } |
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up_read(¤t->mm->mmap_sem); |
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if (y_pages != y_dma.page_count || uv_pages != uv_dma.page_count) { int rc = -EFAULT; if (y_pages == y_dma.page_count) { IVTV_DEBUG_WARN ("failed to map uv user pages, returned %d " "expecting %d ", uv_pages, uv_dma.page_count); if (uv_pages >= 0) { for (i = 0; i < uv_pages; i++) put_page(dma->map[y_pages + i]); rc = -EFAULT; } else { rc = uv_pages; } } else { IVTV_DEBUG_WARN ("failed to map y user pages, returned %d " "expecting %d ", y_pages, y_dma.page_count); |
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} |
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if (y_pages >= 0) { for (i = 0; i < y_pages; i++) put_page(dma->map[i]); /* * Inherit the -EFAULT from rc's * initialization, but allow it to be * overriden by uv_pages above if it was an * actual errno. */ } else { rc = y_pages; } return rc; |
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} |
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dma->page_count = y_pages + uv_pages; |
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/* Fill & map SG List */ |
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if (ivtv_udma_fill_sg_list (dma, &uv_dma, ivtv_udma_fill_sg_list (dma, &y_dma, 0)) < 0) { |
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IVTV_DEBUG_WARN("could not allocate bounce buffers for highmem userspace buffers "); for (i = 0; i < dma->page_count; i++) { put_page(dma->map[i]); } dma->page_count = 0; return -ENOMEM; } |
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dma->SG_length = pci_map_sg(itv->pdev, dma->SGlist, dma->page_count, PCI_DMA_TODEVICE); |
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/* Fill SG Array with new values */ |
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ivtv_udma_fill_sg_array(dma, y_buffer_offset, uv_buffer_offset, y_size); |
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/* If we've offset the y plane, ensure top area is blanked */ |
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if (f->offset_y && yi->blanking_dmaptr) { |
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dma->SGarray[dma->SG_length].size = cpu_to_le32(720*16); |
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dma->SGarray[dma->SG_length].src = cpu_to_le32(yi->blanking_dmaptr); |
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dma->SGarray[dma->SG_length].dst = cpu_to_le32(IVTV_DECODER_OFFSET + yuv_offset[frame]); dma->SG_length++; |
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} /* Tag SG Array with Interrupt Bit */ dma->SGarray[dma->SG_length - 1].size |= cpu_to_le32(0x80000000); ivtv_udma_sync_for_device(itv); return 0; } /* We rely on a table held in the firmware - Quick check. */ int ivtv_yuv_filter_check(struct ivtv *itv) { |
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int i, y, uv; |
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for (i = 0, y = 16, uv = 4; i < 16; i++, y += 24, uv += 12) { if ((read_dec(IVTV_YUV_HORIZONTAL_FILTER_OFFSET + y) != i << 16) || (read_dec(IVTV_YUV_VERTICAL_FILTER_OFFSET + uv) != i << 16)) { |
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IVTV_WARN ("YUV filter table not found in firmware. "); return -1; } } return 0; } static void ivtv_yuv_filter(struct ivtv *itv, int h_filter, int v_filter_1, int v_filter_2) { |
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u32 i, line; |
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/* If any filter is -1, then don't update it */ if (h_filter > -1) { |
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if (h_filter > 4) h_filter = 4; i = IVTV_YUV_HORIZONTAL_FILTER_OFFSET + (h_filter * 384); for (line = 0; line < 16; line++) { write_reg(read_dec(i), 0x02804); write_reg(read_dec(i), 0x0281c); i += 4; write_reg(read_dec(i), 0x02808); write_reg(read_dec(i), 0x02820); i += 4; write_reg(read_dec(i), 0x0280c); write_reg(read_dec(i), 0x02824); i += 4; write_reg(read_dec(i), 0x02810); write_reg(read_dec(i), 0x02828); i += 4; write_reg(read_dec(i), 0x02814); write_reg(read_dec(i), 0x0282c); i += 8; |
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write_reg(0, 0x02818); write_reg(0, 0x02830); |
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} |
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IVTV_DEBUG_YUV("h_filter -> %d ", h_filter); |
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} if (v_filter_1 > -1) { |
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if (v_filter_1 > 4) v_filter_1 = 4; i = IVTV_YUV_VERTICAL_FILTER_OFFSET + (v_filter_1 * 192); for (line = 0; line < 16; line++) { write_reg(read_dec(i), 0x02900); i += 4; write_reg(read_dec(i), 0x02904); i += 8; |
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write_reg(0, 0x02908); |
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} |
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IVTV_DEBUG_YUV("v_filter_1 -> %d ", v_filter_1); |
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} if (v_filter_2 > -1) { |
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if (v_filter_2 > 4) v_filter_2 = 4; i = IVTV_YUV_VERTICAL_FILTER_OFFSET + (v_filter_2 * 192); for (line = 0; line < 16; line++) { write_reg(read_dec(i), 0x0290c); i += 4; write_reg(read_dec(i), 0x02910); i += 8; |
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write_reg(0, 0x02914); |
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} |
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IVTV_DEBUG_YUV("v_filter_2 -> %d ", v_filter_2); |
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} } |
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static void ivtv_yuv_handle_horizontal(struct ivtv *itv, struct yuv_frame_info *f) |
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{ |
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struct yuv_playback_info *yi = &itv->yuv_info; |
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u32 reg_2834, reg_2838, reg_283c; u32 reg_2844, reg_2854, reg_285c; u32 reg_2864, reg_2874, reg_2890; u32 reg_2870, reg_2870_base, reg_2870_offset; int x_cutoff; int h_filter; u32 master_width; |
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IVTV_DEBUG_WARN ("Adjust to width %d src_w %d dst_w %d src_x %d dst_x %d ", f->tru_w, f->src_w, f->dst_w, f->src_x, f->dst_x); |
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/* How wide is the src image */ |
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x_cutoff = f->src_w + f->src_x; |
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/* Set the display width */ |
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reg_2834 = f->dst_w; |
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reg_2838 = reg_2834; /* Set the display position */ |
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reg_2890 = f->dst_x; |
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/* Index into the image horizontally */ reg_2870 = 0; /* 2870 is normally fudged to align video coords with osd coords. If running full screen, it causes an unwanted left shift Remove the fudge if we almost fill the screen. Gradually adjust the offset to avoid the video 'snapping' left/right if it gets dragged through this region. Only do this if osd is full width. */ |
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if (f->vis_w == 720) { if ((f->tru_x - f->pan_x > -1) && (f->tru_x - f->pan_x <= 40) && (f->dst_w >= 680)) reg_2870 = 10 - (f->tru_x - f->pan_x) / 4; else if ((f->tru_x - f->pan_x < 0) && (f->tru_x - f->pan_x >= -20) && (f->dst_w >= 660)) reg_2870 = (10 + (f->tru_x - f->pan_x) / 2); |
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if (f->dst_w >= f->src_w) |
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reg_2870 = reg_2870 << 16 | reg_2870; else reg_2870 = ((reg_2870 & ~1) << 15) | (reg_2870 & ~1); } |
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if (f->dst_w < f->src_w) |
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reg_2870 = 0x000d000e - reg_2870; else reg_2870 = 0x0012000e - reg_2870; /* We're also using 2870 to shift the image left (src_x & negative dst_x) */ |
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reg_2870_offset = (f->src_x * ((f->dst_w << 21) / f->src_w)) >> 19; |
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if (f->dst_w >= f->src_w) { |
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x_cutoff &= ~1; |
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master_width = (f->src_w * 0x00200000) / (f->dst_w); if (master_width * f->dst_w != f->src_w * 0x00200000) master_width++; |
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reg_2834 = (reg_2834 << 16) | x_cutoff; reg_2838 = (reg_2838 << 16) | x_cutoff; reg_283c = master_width >> 2; reg_2844 = master_width >> 2; reg_2854 = master_width; reg_285c = master_width >> 1; reg_2864 = master_width >> 1; /* We also need to factor in the scaling (src_w - dst_w) / (src_w / 4) */ |
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if (f->dst_w > f->src_w) reg_2870_base = ((f->dst_w - f->src_w)<<16) / (f->src_w <<14); |
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else reg_2870_base = 0; reg_2870 += (((reg_2870_offset << 14) & 0xFFFF0000) | reg_2870_offset >> 2) + (reg_2870_base << 17 | reg_2870_base); reg_2874 = 0; |
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} else if (f->dst_w < f->src_w / 2) { master_width = (f->src_w * 0x00080000) / f->dst_w; if (master_width * f->dst_w != f->src_w * 0x00080000) master_width++; |
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reg_2834 = (reg_2834 << 16) | x_cutoff; reg_2838 = (reg_2838 << 16) | x_cutoff; reg_283c = master_width >> 2; reg_2844 = master_width >> 1; reg_2854 = master_width; reg_285c = master_width >> 1; reg_2864 = master_width >> 1; |
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reg_2870 += ((reg_2870_offset << 15) & 0xFFFF0000) | reg_2870_offset; reg_2870 += (5 - (((f->src_w + f->src_w / 2) - 1) / f->dst_w)) << 16; |
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reg_2874 = 0x00000012; |
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} else { master_width = (f->src_w * 0x00100000) / f->dst_w; if (master_width * f->dst_w != f->src_w * 0x00100000) master_width++; |
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reg_2834 = (reg_2834 << 16) | x_cutoff; reg_2838 = (reg_2838 << 16) | x_cutoff; reg_283c = master_width >> 2; reg_2844 = master_width >> 1; reg_2854 = master_width; reg_285c = master_width >> 1; reg_2864 = master_width >> 1; |
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reg_2870 += ((reg_2870_offset << 14) & 0xFFFF0000) | reg_2870_offset >> 1; reg_2870 += (5 - (((f->src_w * 3) - 1) / f->dst_w)) << 16; |
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reg_2874 = 0x00000001; } /* Select the horizontal filter */ |
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if (f->src_w == f->dst_w) { |
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/* An exact size match uses filter 0 */ h_filter = 0; |
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} else { |
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/* Figure out which filter to use */ |
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h_filter = ((f->src_w << 16) / f->dst_w) >> 15; |
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h_filter = (h_filter >> 1) + (h_filter & 1); /* Only an exact size match can use filter 0 */ |
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h_filter += !h_filter; |
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} write_reg(reg_2834, 0x02834); write_reg(reg_2838, 0x02838); |
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IVTV_DEBUG_YUV("Update reg 0x2834 %08x->%08x 0x2838 %08x->%08x ", yi->reg_2834, reg_2834, yi->reg_2838, reg_2838); |
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write_reg(reg_283c, 0x0283c); write_reg(reg_2844, 0x02844); |
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IVTV_DEBUG_YUV("Update reg 0x283c %08x->%08x 0x2844 %08x->%08x ", yi->reg_283c, reg_283c, yi->reg_2844, reg_2844); |
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write_reg(0x00080514, 0x02840); write_reg(0x00100514, 0x02848); |
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IVTV_DEBUG_YUV("Update reg 0x2840 %08x->%08x 0x2848 %08x->%08x ", yi->reg_2840, 0x00080514, yi->reg_2848, 0x00100514); |
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write_reg(reg_2854, 0x02854); |
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IVTV_DEBUG_YUV("Update reg 0x2854 %08x->%08x ", yi->reg_2854, reg_2854); |
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write_reg(reg_285c, 0x0285c); write_reg(reg_2864, 0x02864); |
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IVTV_DEBUG_YUV("Update reg 0x285c %08x->%08x 0x2864 %08x->%08x ", yi->reg_285c, reg_285c, yi->reg_2864, reg_2864); |
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write_reg(reg_2874, 0x02874); |
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IVTV_DEBUG_YUV("Update reg 0x2874 %08x->%08x ", yi->reg_2874, reg_2874); |
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write_reg(reg_2870, 0x02870); |
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IVTV_DEBUG_YUV("Update reg 0x2870 %08x->%08x ", yi->reg_2870, reg_2870); |
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write_reg(reg_2890, 0x02890); IVTV_DEBUG_YUV("Update reg 0x2890 %08x->%08x ", yi->reg_2890, reg_2890); |
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/* Only update the filter if we really need to */ |
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if (h_filter != yi->h_filter) { ivtv_yuv_filter(itv, h_filter, -1, -1); yi->h_filter = h_filter; |
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} } |
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static void ivtv_yuv_handle_vertical(struct ivtv *itv, struct yuv_frame_info *f) |
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{ |
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struct yuv_playback_info *yi = &itv->yuv_info; |
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u32 master_height; u32 reg_2918, reg_291c, reg_2920, reg_2928; u32 reg_2930, reg_2934, reg_293c; u32 reg_2940, reg_2944, reg_294c; u32 reg_2950, reg_2954, reg_2958, reg_295c; u32 reg_2960, reg_2964, reg_2968, reg_296c; u32 reg_289c; |
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u32 src_major_y, src_minor_y; u32 src_major_uv, src_minor_uv; |
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u32 reg_2964_base, reg_2968_base; int v_filter_1, v_filter_2; |
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IVTV_DEBUG_WARN ("Adjust to height %d src_h %d dst_h %d src_y %d dst_y %d ", f->tru_h, f->src_h, f->dst_h, f->src_y, f->dst_y); |
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/* What scaling mode is being used... */ |
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IVTV_DEBUG_YUV("Scaling mode Y: %s ", f->interlaced_y ? "Interlaced" : "Progressive"); |
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IVTV_DEBUG_YUV("Scaling mode UV: %s ", f->interlaced_uv ? "Interlaced" : "Progressive"); |
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/* What is the source video being treated as... */ |
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IVTV_DEBUG_WARN("Source video: %s ", f->interlaced ? "Interlaced" : "Progressive"); |
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/* We offset into the image using two different index methods, so split the y source coord into two parts. */ |
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if (f->src_y < 8) { src_minor_uv = f->src_y; src_major_uv = 0; } else { src_minor_uv = 8; src_major_uv = f->src_y - 8; |
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} |
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src_minor_y = src_minor_uv; src_major_y = src_major_uv; |
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if (f->offset_y) src_minor_y += 16; |
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if (f->interlaced_y) reg_2918 = (f->dst_h << 16) | (f->src_h + src_minor_y); |
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else |
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reg_2918 = (f->dst_h << 16) | ((f->src_h + src_minor_y) << 1); |
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if (f->interlaced_uv) reg_291c = (f->dst_h << 16) | ((f->src_h + src_minor_uv) >> 1); |
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else |
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reg_291c = (f->dst_h << 16) | (f->src_h + src_minor_uv); |
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|
456 457 |
reg_2964_base = (src_minor_y * ((f->dst_h << 16) / f->src_h)) >> 14; reg_2968_base = (src_minor_uv * ((f->dst_h << 16) / f->src_h)) >> 14; |
1a0adaf37
|
458 |
|
2b057e8dc
|
459 460 461 462 |
if (f->dst_h / 2 >= f->src_h && !f->interlaced_y) { master_height = (f->src_h * 0x00400000) / f->dst_h; if ((f->src_h * 0x00400000) - (master_height * f->dst_h) >= f->dst_h / 2) master_height++; |
1a0adaf37
|
463 464 465 466 467 468 469 |
reg_2920 = master_height >> 2; reg_2928 = master_height >> 3; reg_2930 = master_height; reg_2940 = master_height >> 1; reg_2964_base >>= 3; reg_2968_base >>= 3; reg_296c = 0x00000000; |
2b057e8dc
|
470 471 |
} else if (f->dst_h >= f->src_h) { master_height = (f->src_h * 0x00400000) / f->dst_h; |
1a0adaf37
|
472 473 474 475 476 477 |
master_height = (master_height >> 1) + (master_height & 1); reg_2920 = master_height >> 2; reg_2928 = master_height >> 2; reg_2930 = master_height; reg_2940 = master_height >> 1; reg_296c = 0x00000000; |
2b057e8dc
|
478 |
if (f->interlaced_y) { |
1a0adaf37
|
479 |
reg_2964_base >>= 3; |
2b057e8dc
|
480 481 |
} else { reg_296c++; |
1a0adaf37
|
482 483 |
reg_2964_base >>= 2; } |
2b057e8dc
|
484 485 |
if (f->interlaced_uv) reg_2928 >>= 1; |
1a0adaf37
|
486 |
reg_2968_base >>= 3; |
2b057e8dc
|
487 488 |
} else if (f->dst_h >= f->src_h / 2) { master_height = (f->src_h * 0x00200000) / f->dst_h; |
1a0adaf37
|
489 490 491 492 493 494 |
master_height = (master_height >> 1) + (master_height & 1); reg_2920 = master_height >> 2; reg_2928 = master_height >> 2; reg_2930 = master_height; reg_2940 = master_height; reg_296c = 0x00000101; |
2b057e8dc
|
495 |
if (f->interlaced_y) { |
1a0adaf37
|
496 |
reg_2964_base >>= 2; |
2b057e8dc
|
497 498 |
} else { reg_296c++; |
1a0adaf37
|
499 500 |
reg_2964_base >>= 1; } |
2b057e8dc
|
501 502 |
if (f->interlaced_uv) reg_2928 >>= 1; |
1a0adaf37
|
503 |
reg_2968_base >>= 2; |
2b057e8dc
|
504 505 |
} else { master_height = (f->src_h * 0x00100000) / f->dst_h; |
1a0adaf37
|
506 507 508 509 510 511 512 513 514 515 516 517 |
master_height = (master_height >> 1) + (master_height & 1); reg_2920 = master_height >> 2; reg_2928 = master_height >> 2; reg_2930 = master_height; reg_2940 = master_height; reg_2964_base >>= 1; reg_2968_base >>= 2; reg_296c = 0x00000102; } /* FIXME These registers change depending on scaled / unscaled output We really need to work out what they should be */ |
2b057e8dc
|
518 |
if (f->src_h == f->dst_h) { |
1a0adaf37
|
519 520 521 522 |
reg_2934 = 0x00020000; reg_293c = 0x00100000; reg_2944 = 0x00040000; reg_294c = 0x000b0000; |
2b057e8dc
|
523 |
} else { |
1a0adaf37
|
524 525 526 527 528 529 530 |
reg_2934 = 0x00000FF0; reg_293c = 0x00000FF0; reg_2944 = 0x00000FF0; reg_294c = 0x00000FF0; } /* The first line to be displayed */ |
2b057e8dc
|
531 532 533 |
reg_2950 = 0x00010000 + src_major_y; if (f->interlaced_y) reg_2950 += 0x00010000; |
1a0adaf37
|
534 |
reg_2954 = reg_2950 + 1; |
2b057e8dc
|
535 536 537 |
reg_2958 = 0x00010000 + (src_major_y >> 1); if (f->interlaced_uv) reg_2958 += 0x00010000; |
1a0adaf37
|
538 |
reg_295c = reg_2958 + 1; |
2b057e8dc
|
539 |
if (yi->decode_height == 480) |
1a0adaf37
|
540 541 542 |
reg_289c = 0x011e0017; else reg_289c = 0x01500017; |
2b057e8dc
|
543 544 |
if (f->dst_y < 0) reg_289c = (reg_289c - ((f->dst_y & ~1)<<15))-(f->dst_y >>1); |
1a0adaf37
|
545 |
else |
2b057e8dc
|
546 |
reg_289c = (reg_289c + ((f->dst_y & ~1)<<15))+(f->dst_y >>1); |
1a0adaf37
|
547 548 549 |
/* How much of the source to decode. Take into account the source offset */ |
2b057e8dc
|
550 551 |
reg_2960 = ((src_minor_y + f->src_h + src_major_y) - 1) | (((src_minor_uv + f->src_h + src_major_uv - 1) & ~1) << 15); |
1a0adaf37
|
552 553 |
/* Calculate correct value for register 2964 */ |
2b057e8dc
|
554 |
if (f->src_h == f->dst_h) { |
1a0adaf37
|
555 |
reg_2964 = 1; |
2b057e8dc
|
556 557 |
} else { reg_2964 = 2 + ((f->dst_h << 1) / f->src_h); |
1a0adaf37
|
558 559 560 561 562 563 564 565 566 567 568 569 570 571 |
reg_2964 = (reg_2964 >> 1) + (reg_2964 & 1); } reg_2968 = (reg_2964 << 16) + reg_2964 + (reg_2964 >> 1); reg_2964 = (reg_2964 << 16) + reg_2964 + (reg_2964 * 46 / 94); /* Okay, we've wasted time working out the correct value, but if we use it, it fouls the the window alignment. Fudge it to what we want... */ reg_2964 = 0x00010001 + ((reg_2964 & 0x0000FFFF) - (reg_2964 >> 16)); reg_2968 = 0x00010001 + ((reg_2968 & 0x0000FFFF) - (reg_2968 >> 16)); /* Deviate further from what it should be. I find the flicker headache inducing so try to reduce it slightly. Leave 2968 as-is otherwise colours foul. */ |
2b057e8dc
|
572 573 |
if ((reg_2964 != 0x00010001) && (f->dst_h / 2 <= f->src_h)) reg_2964 = (reg_2964 & 0xFFFF0000) + ((reg_2964 & 0x0000FFFF) / 2); |
1a0adaf37
|
574 |
|
2b057e8dc
|
575 576 577 578 |
if (!f->interlaced_y) reg_2964 -= 0x00010001; if (!f->interlaced_uv) reg_2968 -= 0x00010001; |
1a0adaf37
|
579 580 581 582 583 |
reg_2964 += ((reg_2964_base << 16) | reg_2964_base); reg_2968 += ((reg_2968_base << 16) | reg_2968_base); /* Select the vertical filter */ |
2b057e8dc
|
584 |
if (f->src_h == f->dst_h) { |
1a0adaf37
|
585 586 587 |
/* An exact size match uses filter 0/1 */ v_filter_1 = 0; v_filter_2 = 1; |
2b057e8dc
|
588 |
} else { |
1a0adaf37
|
589 |
/* Figure out which filter to use */ |
2b057e8dc
|
590 |
v_filter_1 = ((f->src_h << 16) / f->dst_h) >> 15; |
1a0adaf37
|
591 592 |
v_filter_1 = (v_filter_1 >> 1) + (v_filter_1 & 1); /* Only an exact size match can use filter 0 */ |
2b057e8dc
|
593 |
v_filter_1 += !v_filter_1; |
1a0adaf37
|
594 595 596 597 598 |
v_filter_2 = v_filter_1; } write_reg(reg_2934, 0x02934); write_reg(reg_293c, 0x0293c); |
2b057e8dc
|
599 600 601 |
IVTV_DEBUG_YUV("Update reg 0x2934 %08x->%08x 0x293c %08x->%08x ", yi->reg_2934, reg_2934, yi->reg_293c, reg_293c); |
1a0adaf37
|
602 603 |
write_reg(reg_2944, 0x02944); write_reg(reg_294c, 0x0294c); |
2b057e8dc
|
604 605 606 |
IVTV_DEBUG_YUV("Update reg 0x2944 %08x->%08x 0x294c %08x->%08x ", yi->reg_2944, reg_2944, yi->reg_294c, reg_294c); |
1a0adaf37
|
607 608 609 |
/* Ensure 2970 is 0 (does it ever change ?) */ /* write_reg(0,0x02970); */ |
2b057e8dc
|
610 611 |
/* IVTV_DEBUG_YUV("Update reg 0x2970 %08x->%08x ", yi->reg_2970, 0); */ |
1a0adaf37
|
612 613 614 |
write_reg(reg_2930, 0x02938); write_reg(reg_2930, 0x02930); |
2b057e8dc
|
615 616 617 |
IVTV_DEBUG_YUV("Update reg 0x2930 %08x->%08x 0x2938 %08x->%08x ", yi->reg_2930, reg_2930, yi->reg_2938, reg_2930); |
1a0adaf37
|
618 619 |
write_reg(reg_2928, 0x02928); |
2b057e8dc
|
620 621 622 623 |
write_reg(reg_2928 + 0x514, 0x0292C); IVTV_DEBUG_YUV("Update reg 0x2928 %08x->%08x 0x292c %08x->%08x ", yi->reg_2928, reg_2928, yi->reg_292c, reg_2928 + 0x514); |
1a0adaf37
|
624 625 |
write_reg(reg_2920, 0x02920); |
2b057e8dc
|
626 627 628 629 |
write_reg(reg_2920 + 0x514, 0x02924); IVTV_DEBUG_YUV("Update reg 0x2920 %08x->%08x 0x2924 %08x->%08x ", yi->reg_2920, reg_2920, yi->reg_2924, reg_2920 + 0x514); |
1a0adaf37
|
630 |
|
2b057e8dc
|
631 632 633 634 635 |
write_reg(reg_2918, 0x02918); write_reg(reg_291c, 0x0291C); IVTV_DEBUG_YUV("Update reg 0x2918 %08x->%08x 0x291C %08x->%08x ", yi->reg_2918, reg_2918, yi->reg_291c, reg_291c); |
1a0adaf37
|
636 637 |
write_reg(reg_296c, 0x0296c); |
2b057e8dc
|
638 639 640 |
IVTV_DEBUG_YUV("Update reg 0x296c %08x->%08x ", yi->reg_296c, reg_296c); |
1a0adaf37
|
641 642 643 |
write_reg(reg_2940, 0x02948); write_reg(reg_2940, 0x02940); |
2b057e8dc
|
644 645 646 |
IVTV_DEBUG_YUV("Update reg 0x2940 %08x->%08x 0x2948 %08x->%08x ", yi->reg_2940, reg_2940, yi->reg_2948, reg_2940); |
1a0adaf37
|
647 648 649 |
write_reg(reg_2950, 0x02950); write_reg(reg_2954, 0x02954); |
2b057e8dc
|
650 651 652 |
IVTV_DEBUG_YUV("Update reg 0x2950 %08x->%08x 0x2954 %08x->%08x ", yi->reg_2950, reg_2950, yi->reg_2954, reg_2954); |
1a0adaf37
|
653 654 655 |
write_reg(reg_2958, 0x02958); write_reg(reg_295c, 0x0295C); |
2b057e8dc
|
656 657 658 |
IVTV_DEBUG_YUV("Update reg 0x2958 %08x->%08x 0x295C %08x->%08x ", yi->reg_2958, reg_2958, yi->reg_295c, reg_295c); |
1a0adaf37
|
659 660 |
write_reg(reg_2960, 0x02960); |
2b057e8dc
|
661 662 663 |
IVTV_DEBUG_YUV("Update reg 0x2960 %08x->%08x ", yi->reg_2960, reg_2960); |
1a0adaf37
|
664 665 666 |
write_reg(reg_2964, 0x02964); write_reg(reg_2968, 0x02968); |
2b057e8dc
|
667 668 669 |
IVTV_DEBUG_YUV("Update reg 0x2964 %08x->%08x 0x2968 %08x->%08x ", yi->reg_2964, reg_2964, yi->reg_2968, reg_2968); |
1a0adaf37
|
670 |
|
2b057e8dc
|
671 672 673 674 |
write_reg(reg_289c, 0x0289c); IVTV_DEBUG_YUV("Update reg 0x289c %08x->%08x ", yi->reg_289c, reg_289c); |
1a0adaf37
|
675 676 |
/* Only update filter 1 if we really need to */ |
2b057e8dc
|
677 678 679 |
if (v_filter_1 != yi->v_filter_1) { ivtv_yuv_filter(itv, -1, v_filter_1, -1); yi->v_filter_1 = v_filter_1; |
1a0adaf37
|
680 681 682 |
} /* Only update filter 2 if we really need to */ |
2b057e8dc
|
683 684 685 |
if (v_filter_2 != yi->v_filter_2) { ivtv_yuv_filter(itv, -1, -1, v_filter_2); yi->v_filter_2 = v_filter_2; |
1a0adaf37
|
686 |
} |
1a0adaf37
|
687 688 689 |
} /* Modify the supplied coordinate information to fit the visible osd area */ |
3b5c1c8e7
|
690 |
static u32 ivtv_yuv_window_setup(struct ivtv *itv, struct yuv_frame_info *f) |
1a0adaf37
|
691 |
{ |
3b5c1c8e7
|
692 693 |
struct yuv_frame_info *of = &itv->yuv_info.old_frame_info; int osd_crop; |
1a0adaf37
|
694 695 |
u32 osd_scale; u32 yuv_update = 0; |
1a0adaf37
|
696 |
/* Sorry, but no negative coords for src */ |
3b5c1c8e7
|
697 698 699 700 |
if (f->src_x < 0) f->src_x = 0; if (f->src_y < 0) f->src_y = 0; |
1a0adaf37
|
701 702 |
/* Can only reduce width down to 1/4 original size */ |
3b5c1c8e7
|
703 704 705 706 707 |
if ((osd_crop = f->src_w - 4 * f->dst_w) > 0) { f->src_x += osd_crop / 2; f->src_w = (f->src_w - osd_crop) & ~3; f->dst_w = f->src_w / 4; f->dst_w += f->dst_w & 1; |
1a0adaf37
|
708 709 710 |
} /* Can only reduce height down to 1/4 original size */ |
3b5c1c8e7
|
711 712 713 714 |
if (f->src_h / f->dst_h >= 2) { /* Overflow may be because we're running progressive, so force mode switch */ f->interlaced_y = 1; |
1a0adaf37
|
715 |
/* Make sure we're still within limits for interlace */ |
3b5c1c8e7
|
716 |
if ((osd_crop = f->src_h - 4 * f->dst_h) > 0) { |
1a0adaf37
|
717 |
/* If we reach here we'll have to force the height. */ |
3b5c1c8e7
|
718 719 720 721 |
f->src_y += osd_crop / 2; f->src_h = (f->src_h - osd_crop) & ~3; f->dst_h = f->src_h / 4; f->dst_h += f->dst_h & 1; |
1a0adaf37
|
722 723 724 725 |
} } /* If there's nothing to safe to display, we may as well stop now */ |
3b5c1c8e7
|
726 |
if ((int)f->dst_w <= 2 || (int)f->dst_h <= 2 || |
2b057e8dc
|
727 |
(int)f->src_w <= 2 || (int)f->src_h <= 2) { |
0bfeb04a9
|
728 |
return IVTV_YUV_UPDATE_INVALID; |
1a0adaf37
|
729 730 731 |
} /* Ensure video remains inside OSD area */ |
3b5c1c8e7
|
732 |
osd_scale = (f->src_h << 16) / f->dst_h; |
1a0adaf37
|
733 |
|
3b5c1c8e7
|
734 |
if ((osd_crop = f->pan_y - f->dst_y) > 0) { |
1a0adaf37
|
735 |
/* Falls off the upper edge - crop */ |
3b5c1c8e7
|
736 737 738 739 740 741 |
f->src_y += (osd_scale * osd_crop) >> 16; f->src_h -= (osd_scale * osd_crop) >> 16; f->dst_h -= osd_crop; f->dst_y = 0; } else { f->dst_y -= f->pan_y; |
1a0adaf37
|
742 |
} |
3b5c1c8e7
|
743 |
if ((osd_crop = f->dst_h + f->dst_y - f->vis_h) > 0) { |
1a0adaf37
|
744 |
/* Falls off the lower edge - crop */ |
3b5c1c8e7
|
745 746 |
f->dst_h -= osd_crop; f->src_h -= (osd_scale * osd_crop) >> 16; |
1a0adaf37
|
747 |
} |
3b5c1c8e7
|
748 |
osd_scale = (f->src_w << 16) / f->dst_w; |
1a0adaf37
|
749 |
|
3b5c1c8e7
|
750 |
if ((osd_crop = f->pan_x - f->dst_x) > 0) { |
1a0adaf37
|
751 |
/* Fall off the left edge - crop */ |
3b5c1c8e7
|
752 753 754 755 756 757 |
f->src_x += (osd_scale * osd_crop) >> 16; f->src_w -= (osd_scale * osd_crop) >> 16; f->dst_w -= osd_crop; f->dst_x = 0; } else { f->dst_x -= f->pan_x; |
1a0adaf37
|
758 |
} |
3b5c1c8e7
|
759 |
if ((osd_crop = f->dst_w + f->dst_x - f->vis_w) > 0) { |
1a0adaf37
|
760 |
/* Falls off the right edge - crop */ |
3b5c1c8e7
|
761 762 |
f->dst_w -= osd_crop; f->src_w -= (osd_scale * osd_crop) >> 16; |
1a0adaf37
|
763 |
} |
88ab075ae
|
764 765 766 767 768 |
if (itv->yuv_info.track_osd) { /* The OSD can be moved. Track to it */ f->dst_x += itv->yuv_info.osd_x_offset; f->dst_y += itv->yuv_info.osd_y_offset; } |
1a0adaf37
|
769 770 771 |
/* Width & height for both src & dst must be even. Same for coordinates. */ |
3b5c1c8e7
|
772 773 |
f->dst_w &= ~1; f->dst_x &= ~1; |
1a0adaf37
|
774 |
|
3b5c1c8e7
|
775 776 |
f->src_w += f->src_x & 1; f->src_x &= ~1; |
1a0adaf37
|
777 |
|
3b5c1c8e7
|
778 779 |
f->src_w &= ~1; f->dst_w &= ~1; |
1a0adaf37
|
780 |
|
3b5c1c8e7
|
781 782 |
f->dst_h &= ~1; f->dst_y &= ~1; |
1a0adaf37
|
783 |
|
3b5c1c8e7
|
784 785 |
f->src_h += f->src_y & 1; f->src_y &= ~1; |
1a0adaf37
|
786 |
|
3b5c1c8e7
|
787 788 |
f->src_h &= ~1; f->dst_h &= ~1; |
1a0adaf37
|
789 |
|
3b5c1c8e7
|
790 791 792 793 794 795 796 |
/* Due to rounding, we may have reduced the output size to <1/4 of the source. Check again, but this time just resize. Don't change source coordinates */ if (f->dst_w < f->src_w / 4) { f->src_w &= ~3; f->dst_w = f->src_w / 4; f->dst_w += f->dst_w & 1; |
1a0adaf37
|
797 |
} |
3b5c1c8e7
|
798 799 800 801 |
if (f->dst_h < f->src_h / 4) { f->src_h &= ~3; f->dst_h = f->src_h / 4; f->dst_h += f->dst_h & 1; |
1a0adaf37
|
802 803 804 |
} /* Check again. If there's nothing to safe to display, stop now */ |
3b5c1c8e7
|
805 |
if ((int)f->dst_w <= 2 || (int)f->dst_h <= 2 || |
2b057e8dc
|
806 |
(int)f->src_w <= 2 || (int)f->src_h <= 2) { |
0bfeb04a9
|
807 |
return IVTV_YUV_UPDATE_INVALID; |
1a0adaf37
|
808 809 810 |
} /* Both x offset & width are linked, so they have to be done together */ |
3b5c1c8e7
|
811 |
if ((of->dst_w != f->dst_w) || (of->src_w != f->src_w) || |
2b057e8dc
|
812 813 |
(of->dst_x != f->dst_x) || (of->src_x != f->src_x) || (of->pan_x != f->pan_x) || (of->vis_w != f->vis_w)) { |
1a0adaf37
|
814 815 |
yuv_update |= IVTV_YUV_UPDATE_HORIZONTAL; } |
3b5c1c8e7
|
816 |
if ((of->src_h != f->src_h) || (of->dst_h != f->dst_h) || |
2b057e8dc
|
817 818 819 820 821 |
(of->dst_y != f->dst_y) || (of->src_y != f->src_y) || (of->pan_y != f->pan_y) || (of->vis_h != f->vis_h) || (of->lace_mode != f->lace_mode) || (of->interlaced_y != f->interlaced_y) || (of->interlaced_uv != f->interlaced_uv)) { |
1a0adaf37
|
822 823 824 825 826 827 828 |
yuv_update |= IVTV_YUV_UPDATE_VERTICAL; } return yuv_update; } /* Update the scaling register to the requested value */ |
2b057e8dc
|
829 |
void ivtv_yuv_work_handler(struct ivtv *itv) |
1a0adaf37
|
830 |
{ |
3b5c1c8e7
|
831 832 833 |
struct yuv_playback_info *yi = &itv->yuv_info; struct yuv_frame_info f; int frame = yi->update_frame; |
1a0adaf37
|
834 |
u32 yuv_update; |
2b057e8dc
|
835 836 |
IVTV_DEBUG_YUV("Update yuv registers for frame %d ", frame); |
3b5c1c8e7
|
837 |
f = yi->new_frame_info[frame]; |
1a0adaf37
|
838 |
|
88ab075ae
|
839 840 841 842 843 844 845 846 847 848 849 850 851 |
if (yi->track_osd) { /* Snapshot the osd pan info */ f.pan_x = yi->osd_x_pan; f.pan_y = yi->osd_y_pan; f.vis_w = yi->osd_vis_w; f.vis_h = yi->osd_vis_h; } else { /* Not tracking the osd, so assume full screen */ f.pan_x = 0; f.pan_y = 0; f.vis_w = 720; f.vis_h = yi->decode_height; } |
1a0adaf37
|
852 853 |
/* Calculate the display window coordinates. Exit if nothing left */ |
2b057e8dc
|
854 |
if (!(yuv_update = ivtv_yuv_window_setup(itv, &f))) |
1a0adaf37
|
855 |
return; |
0bfeb04a9
|
856 857 858 859 |
if (yuv_update & IVTV_YUV_UPDATE_INVALID) { write_reg(0x01008080, 0x2898); } else if (yuv_update) { write_reg(0x00108080, 0x2898); |
1a0adaf37
|
860 |
|
0bfeb04a9
|
861 |
if (yuv_update & IVTV_YUV_UPDATE_HORIZONTAL) |
3b5c1c8e7
|
862 |
ivtv_yuv_handle_horizontal(itv, &f); |
0bfeb04a9
|
863 864 |
if (yuv_update & IVTV_YUV_UPDATE_VERTICAL) |
3b5c1c8e7
|
865 |
ivtv_yuv_handle_vertical(itv, &f); |
0bfeb04a9
|
866 |
} |
3b5c1c8e7
|
867 |
yi->old_frame_info = f; |
1a0adaf37
|
868 |
} |
2b057e8dc
|
869 |
static void ivtv_yuv_init(struct ivtv *itv) |
1a0adaf37
|
870 |
{ |
195b12525
|
871 |
struct yuv_playback_info *yi = &itv->yuv_info; |
1a0adaf37
|
872 873 874 875 |
IVTV_DEBUG_YUV("ivtv_yuv_init "); /* Take a snapshot of the current register settings */ |
195b12525
|
876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 |
yi->reg_2834 = read_reg(0x02834); yi->reg_2838 = read_reg(0x02838); yi->reg_283c = read_reg(0x0283c); yi->reg_2840 = read_reg(0x02840); yi->reg_2844 = read_reg(0x02844); yi->reg_2848 = read_reg(0x02848); yi->reg_2854 = read_reg(0x02854); yi->reg_285c = read_reg(0x0285c); yi->reg_2864 = read_reg(0x02864); yi->reg_2870 = read_reg(0x02870); yi->reg_2874 = read_reg(0x02874); yi->reg_2898 = read_reg(0x02898); yi->reg_2890 = read_reg(0x02890); yi->reg_289c = read_reg(0x0289c); yi->reg_2918 = read_reg(0x02918); yi->reg_291c = read_reg(0x0291c); yi->reg_2920 = read_reg(0x02920); yi->reg_2924 = read_reg(0x02924); yi->reg_2928 = read_reg(0x02928); yi->reg_292c = read_reg(0x0292c); yi->reg_2930 = read_reg(0x02930); yi->reg_2934 = read_reg(0x02934); yi->reg_2938 = read_reg(0x02938); yi->reg_293c = read_reg(0x0293c); yi->reg_2940 = read_reg(0x02940); yi->reg_2944 = read_reg(0x02944); yi->reg_2948 = read_reg(0x02948); yi->reg_294c = read_reg(0x0294c); yi->reg_2950 = read_reg(0x02950); yi->reg_2954 = read_reg(0x02954); yi->reg_2958 = read_reg(0x02958); yi->reg_295c = read_reg(0x0295c); yi->reg_2960 = read_reg(0x02960); yi->reg_2964 = read_reg(0x02964); yi->reg_2968 = read_reg(0x02968); yi->reg_296c = read_reg(0x0296c); yi->reg_2970 = read_reg(0x02970); yi->v_filter_1 = -1; yi->v_filter_2 = -1; yi->h_filter = -1; |
1a0adaf37
|
918 919 |
/* Set some valid size info */ |
195b12525
|
920 921 |
yi->osd_x_offset = read_reg(0x02a04) & 0x00000FFF; yi->osd_y_offset = (read_reg(0x02a04) >> 16) & 0x00000FFF; |
1a0adaf37
|
922 923 924 925 |
/* Bit 2 of reg 2878 indicates current decoder output format 0 : NTSC 1 : PAL */ if (read_reg(0x2878) & 4) |
195b12525
|
926 |
yi->decode_height = 576; |
1a0adaf37
|
927 |
else |
195b12525
|
928 |
yi->decode_height = 480; |
b4b38bd63
|
929 |
|
195b12525
|
930 931 932 |
if (!itv->osd_info) { yi->osd_vis_w = 720 - yi->osd_x_offset; yi->osd_vis_h = yi->decode_height - yi->osd_y_offset; |
b4b38bd63
|
933 |
} else { |
195b12525
|
934 935 936 |
/* If no visible size set, assume full size */ if (!yi->osd_vis_w) yi->osd_vis_w = 720 - yi->osd_x_offset; |
2b057e8dc
|
937 |
if (!yi->osd_vis_h) { |
195b12525
|
938 |
yi->osd_vis_h = yi->decode_height - yi->osd_y_offset; |
2b057e8dc
|
939 |
} else if (yi->osd_vis_h + yi->osd_y_offset > yi->decode_height) { |
195b12525
|
940 |
/* If output video standard has changed, requested height may |
2b057e8dc
|
941 942 943 944 945 946 |
not be legal */ IVTV_DEBUG_WARN("Clipping yuv output - fb size (%d) exceeds video standard limit (%d) ", yi->osd_vis_h + yi->osd_y_offset, yi->decode_height); yi->osd_vis_h = yi->decode_height - yi->osd_y_offset; |
b4b38bd63
|
947 948 |
} } |
1a0adaf37
|
949 950 |
/* We need a buffer for blanking when Y plane is offset - non-fatal if we can't get one */ |
3f98387ef
|
951 |
yi->blanking_ptr = kzalloc(720 * 16, GFP_KERNEL|__GFP_NOWARN); |
2b057e8dc
|
952 |
if (yi->blanking_ptr) { |
8ac05ae31
|
953 |
yi->blanking_dmaptr = pci_map_single(itv->pdev, yi->blanking_ptr, 720*16, PCI_DMA_TODEVICE); |
2b057e8dc
|
954 |
} else { |
195b12525
|
955 956 957 |
yi->blanking_dmaptr = 0; IVTV_DEBUG_WARN("Failed to allocate yuv blanking buffer "); |
1a0adaf37
|
958 |
} |
1a0adaf37
|
959 960 961 962 |
/* Enable YUV decoder output */ write_reg_sync(0x01, IVTV_REG_VDM); set_bit(IVTV_F_I_DECODING_YUV, &itv->i_flags); |
195b12525
|
963 |
atomic_set(&yi->next_dma_frame, 0); |
1a0adaf37
|
964 |
} |
a3e5f5e2d
|
965 |
/* Get next available yuv buffer on PVR350 */ |
5eedc4667
|
966 |
static void ivtv_yuv_next_free(struct ivtv *itv) |
1a0adaf37
|
967 |
{ |
a3e5f5e2d
|
968 969 |
int draw, display; struct yuv_playback_info *yi = &itv->yuv_info; |
1a0adaf37
|
970 |
|
a3e5f5e2d
|
971 972 |
if (atomic_read(&yi->next_dma_frame) == -1) ivtv_yuv_init(itv); |
1a0adaf37
|
973 |
|
a3e5f5e2d
|
974 975 |
draw = atomic_read(&yi->next_fill_frame); display = atomic_read(&yi->next_dma_frame); |
1a0adaf37
|
976 |
|
a3e5f5e2d
|
977 978 |
if (display > draw) display -= IVTV_YUV_BUFFERS; |
1a0adaf37
|
979 |
|
a3e5f5e2d
|
980 981 982 983 984 985 986 987 988 |
if (draw - display >= yi->max_frames_buffered) draw = (u8)(draw - 1) % IVTV_YUV_BUFFERS; else yi->new_frame_info[draw].update = 0; yi->draw_frame = draw; } /* Set up frame according to ivtv_dma_frame parameters */ |
5eedc4667
|
989 |
static void ivtv_yuv_setup_frame(struct ivtv *itv, struct ivtv_dma_frame *args) |
a3e5f5e2d
|
990 991 992 |
{ struct yuv_playback_info *yi = &itv->yuv_info; u8 frame = yi->draw_frame; |
3b5c1c8e7
|
993 994 995 996 |
u8 last_frame = (u8)(frame - 1) % IVTV_YUV_BUFFERS; struct yuv_frame_info *nf = &yi->new_frame_info[frame]; struct yuv_frame_info *of = &yi->new_frame_info[last_frame]; int lace_threshold = yi->lace_threshold; |
a3e5f5e2d
|
997 998 |
/* Preserve old update flag in case we're overwriting a queued frame */ |
3b5c1c8e7
|
999 |
int update = nf->update; |
1a0adaf37
|
1000 1001 |
/* Take a snapshot of the yuv coordinate information */ |
3b5c1c8e7
|
1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 |
nf->src_x = args->src.left; nf->src_y = args->src.top; nf->src_w = args->src.width; nf->src_h = args->src.height; nf->dst_x = args->dst.left; nf->dst_y = args->dst.top; nf->dst_w = args->dst.width; nf->dst_h = args->dst.height; nf->tru_x = args->dst.left; nf->tru_w = args->src_width; nf->tru_h = args->src_height; |
bfd7beacf
|
1013 |
|
1a0adaf37
|
1014 |
/* Are we going to offset the Y plane */ |
3b5c1c8e7
|
1015 |
nf->offset_y = (nf->tru_h + nf->src_x < 512 - 16) ? 1 : 0; |
1a0adaf37
|
1016 |
|
3b5c1c8e7
|
1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 |
nf->update = 0; nf->interlaced_y = 0; nf->interlaced_uv = 0; nf->delay = 0; nf->sync_field = 0; nf->lace_mode = yi->lace_mode & IVTV_YUV_MODE_MASK; if (lace_threshold < 0) lace_threshold = yi->decode_height - 1; /* Work out the lace settings */ switch (nf->lace_mode) { case IVTV_YUV_MODE_PROGRESSIVE: /* Progressive mode */ nf->interlaced = 0; if (nf->tru_h < 512 || (nf->tru_h > 576 && nf->tru_h < 1021)) nf->interlaced_y = 0; else nf->interlaced_y = 1; if (nf->tru_h < 1021 && (nf->dst_h >= nf->src_h / 2)) nf->interlaced_uv = 0; else nf->interlaced_uv = 1; break; case IVTV_YUV_MODE_AUTO: if (nf->tru_h <= lace_threshold || nf->tru_h > 576 || nf->tru_w > 720) { nf->interlaced = 0; if ((nf->tru_h < 512) || |
2b057e8dc
|
1046 1047 |
(nf->tru_h > 576 && nf->tru_h < 1021) || (nf->tru_w > 720 && nf->tru_h < 1021)) |
3b5c1c8e7
|
1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 |
nf->interlaced_y = 0; else nf->interlaced_y = 1; if (nf->tru_h < 1021 && (nf->dst_h >= nf->src_h / 2)) nf->interlaced_uv = 0; else nf->interlaced_uv = 1; } else { nf->interlaced = 1; nf->interlaced_y = 1; nf->interlaced_uv = 1; } break; case IVTV_YUV_MODE_INTERLACED: /* Interlace mode */ default: nf->interlaced = 1; nf->interlaced_y = 1; nf->interlaced_uv = 1; break; |
1a0adaf37
|
1068 |
} |
3b5c1c8e7
|
1069 1070 1071 |
if (memcmp(&yi->old_frame_info_args, nf, sizeof(*nf))) { yi->old_frame_info_args = *nf; nf->update = 1; |
2b057e8dc
|
1072 1073 |
IVTV_DEBUG_YUV("Requesting reg update for frame %d ", frame); |
3b5c1c8e7
|
1074 |
} |
943e8910d
|
1075 |
|
3b5c1c8e7
|
1076 1077 1078 |
nf->update |= update; nf->sync_field = yi->lace_sync_field; nf->delay = nf->sync_field != of->sync_field; |
a3e5f5e2d
|
1079 1080 1081 1082 1083 1084 1085 1086 |
} /* Frame is complete & ready for display */ void ivtv_yuv_frame_complete(struct ivtv *itv) { atomic_set(&itv->yuv_info.next_fill_frame, (itv->yuv_info.draw_frame + 1) % IVTV_YUV_BUFFERS); } |
5eedc4667
|
1087 |
static int ivtv_yuv_udma_frame(struct ivtv *itv, struct ivtv_dma_frame *args) |
a3e5f5e2d
|
1088 1089 1090 1091 |
{ DEFINE_WAIT(wait); int rc = 0; int got_sig = 0; |
1a0adaf37
|
1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 |
/* DMA the frame */ mutex_lock(&itv->udma.lock); if ((rc = ivtv_yuv_prep_user_dma(itv, &itv->udma, args)) != 0) { mutex_unlock(&itv->udma.lock); return rc; } ivtv_udma_prepare(itv); prepare_to_wait(&itv->dma_waitq, &wait, TASK_INTERRUPTIBLE); /* if no UDMA is pending and no UDMA is in progress, then the DMA |
2b057e8dc
|
1103 |
is finished */ |
ec105a42a
|
1104 1105 |
while (test_bit(IVTV_F_I_UDMA_PENDING, &itv->i_flags) || test_bit(IVTV_F_I_UDMA, &itv->i_flags)) { |
1a0adaf37
|
1106 |
/* don't interrupt if the DMA is in progress but break off |
2b057e8dc
|
1107 |
a still pending DMA. */ |
1a0adaf37
|
1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 |
got_sig = signal_pending(current); if (got_sig && test_and_clear_bit(IVTV_F_I_UDMA_PENDING, &itv->i_flags)) break; got_sig = 0; schedule(); } finish_wait(&itv->dma_waitq, &wait); /* Unmap Last DMA Xfer */ ivtv_udma_unmap(itv); if (got_sig) { IVTV_DEBUG_INFO("User stopped YUV UDMA "); mutex_unlock(&itv->udma.lock); return -EINTR; } |
a3e5f5e2d
|
1125 |
ivtv_yuv_frame_complete(itv); |
1a0adaf37
|
1126 1127 1128 1129 |
mutex_unlock(&itv->udma.lock); return rc; } |
77aded6ba
|
1130 1131 1132 1133 1134 1135 1136 1137 1138 |
/* Setup frame according to V4L2 parameters */ void ivtv_yuv_setup_stream_frame(struct ivtv *itv) { struct yuv_playback_info *yi = &itv->yuv_info; struct ivtv_dma_frame dma_args; ivtv_yuv_next_free(itv); /* Copy V4L2 parameters to an ivtv_dma_frame struct... */ |
a6a3a17b7
|
1139 1140 |
dma_args.y_source = NULL; dma_args.uv_source = NULL; |
77aded6ba
|
1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 |
dma_args.src.left = 0; dma_args.src.top = 0; dma_args.src.width = yi->v4l2_src_w; dma_args.src.height = yi->v4l2_src_h; dma_args.dst = yi->main_rect; dma_args.src_width = yi->v4l2_src_w; dma_args.src_height = yi->v4l2_src_h; /* ... and use the same setup routine as ivtv_yuv_prep_frame */ ivtv_yuv_setup_frame(itv, &dma_args); if (!itv->dma_data_req_offset) itv->dma_data_req_offset = yuv_offset[yi->draw_frame]; } /* Attempt to dma a frame from a user buffer */ |
b0510f8dc
|
1157 |
int ivtv_yuv_udma_stream_frame(struct ivtv *itv, void __user *src) |
77aded6ba
|
1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 |
{ struct yuv_playback_info *yi = &itv->yuv_info; struct ivtv_dma_frame dma_args; ivtv_yuv_setup_stream_frame(itv); /* We only need to supply source addresses for this */ dma_args.y_source = src; dma_args.uv_source = src + 720 * ((yi->v4l2_src_h + 31) & ~31); return ivtv_yuv_udma_frame(itv, &dma_args); } /* IVTV_IOC_DMA_FRAME ioctl handler */ int ivtv_yuv_prep_frame(struct ivtv *itv, struct ivtv_dma_frame *args) { |
2b057e8dc
|
1173 1174 |
/* IVTV_DEBUG_INFO("yuv_prep_frame "); */ |
77aded6ba
|
1175 1176 1177 1178 1179 |
ivtv_yuv_next_free(itv); ivtv_yuv_setup_frame(itv, args); return ivtv_yuv_udma_frame(itv, args); } |
1a0adaf37
|
1180 1181 |
void ivtv_yuv_close(struct ivtv *itv) { |
2b057e8dc
|
1182 |
struct yuv_playback_info *yi = &itv->yuv_info; |
1a0adaf37
|
1183 1184 1185 1186 1187 |
int h_filter, v_filter_1, v_filter_2; IVTV_DEBUG_YUV("ivtv_yuv_close "); ivtv_waitq(&itv->vsync_waitq); |
2bd7ac55c
|
1188 |
yi->running = 0; |
2b057e8dc
|
1189 1190 |
atomic_set(&yi->next_dma_frame, -1); atomic_set(&yi->next_fill_frame, 0); |
1a0adaf37
|
1191 1192 1193 1194 1195 1196 |
/* Reset registers we have changed so mpeg playback works */ /* If we fully restore this register, the display may remain active. Restore, but set one bit to blank the video. Firmware will always clear this bit when needed, so not a problem. */ |
2b057e8dc
|
1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 |
write_reg(yi->reg_2898 | 0x01000000, 0x2898); write_reg(yi->reg_2834, 0x02834); write_reg(yi->reg_2838, 0x02838); write_reg(yi->reg_283c, 0x0283c); write_reg(yi->reg_2840, 0x02840); write_reg(yi->reg_2844, 0x02844); write_reg(yi->reg_2848, 0x02848); write_reg(yi->reg_2854, 0x02854); write_reg(yi->reg_285c, 0x0285c); write_reg(yi->reg_2864, 0x02864); write_reg(yi->reg_2870, 0x02870); write_reg(yi->reg_2874, 0x02874); write_reg(yi->reg_2890, 0x02890); write_reg(yi->reg_289c, 0x0289c); write_reg(yi->reg_2918, 0x02918); write_reg(yi->reg_291c, 0x0291c); write_reg(yi->reg_2920, 0x02920); write_reg(yi->reg_2924, 0x02924); write_reg(yi->reg_2928, 0x02928); write_reg(yi->reg_292c, 0x0292c); write_reg(yi->reg_2930, 0x02930); write_reg(yi->reg_2934, 0x02934); write_reg(yi->reg_2938, 0x02938); write_reg(yi->reg_293c, 0x0293c); write_reg(yi->reg_2940, 0x02940); write_reg(yi->reg_2944, 0x02944); write_reg(yi->reg_2948, 0x02948); write_reg(yi->reg_294c, 0x0294c); write_reg(yi->reg_2950, 0x02950); write_reg(yi->reg_2954, 0x02954); write_reg(yi->reg_2958, 0x02958); write_reg(yi->reg_295c, 0x0295c); write_reg(yi->reg_2960, 0x02960); write_reg(yi->reg_2964, 0x02964); write_reg(yi->reg_2968, 0x02968); write_reg(yi->reg_296c, 0x0296c); write_reg(yi->reg_2970, 0x02970); |
1a0adaf37
|
1236 1237 1238 1239 |
/* Prepare to restore filters */ /* First the horizontal filter */ |
2b057e8dc
|
1240 |
if ((yi->reg_2834 & 0x0000FFFF) == (yi->reg_2834 >> 16)) { |
1a0adaf37
|
1241 1242 |
/* An exact size match uses filter 0 */ h_filter = 0; |
2b057e8dc
|
1243 |
} else { |
1a0adaf37
|
1244 |
/* Figure out which filter to use */ |
2b057e8dc
|
1245 |
h_filter = ((yi->reg_2834 << 16) / (yi->reg_2834 >> 16)) >> 15; |
1a0adaf37
|
1246 1247 |
h_filter = (h_filter >> 1) + (h_filter & 1); /* Only an exact size match can use filter 0. */ |
2b057e8dc
|
1248 |
h_filter += !h_filter; |
1a0adaf37
|
1249 1250 1251 |
} /* Now the vertical filter */ |
2b057e8dc
|
1252 |
if ((yi->reg_2918 & 0x0000FFFF) == (yi->reg_2918 >> 16)) { |
1a0adaf37
|
1253 1254 1255 |
/* An exact size match uses filter 0/1 */ v_filter_1 = 0; v_filter_2 = 1; |
2b057e8dc
|
1256 |
} else { |
1a0adaf37
|
1257 |
/* Figure out which filter to use */ |
2b057e8dc
|
1258 |
v_filter_1 = ((yi->reg_2918 << 16) / (yi->reg_2918 >> 16)) >> 15; |
1a0adaf37
|
1259 1260 |
v_filter_1 = (v_filter_1 >> 1) + (v_filter_1 & 1); /* Only an exact size match can use filter 0 */ |
2b057e8dc
|
1261 |
v_filter_1 += !v_filter_1; |
1a0adaf37
|
1262 1263 1264 1265 |
v_filter_2 = v_filter_1; } /* Now restore the filters */ |
2b057e8dc
|
1266 |
ivtv_yuv_filter(itv, h_filter, v_filter_1, v_filter_2); |
1a0adaf37
|
1267 1268 1269 1270 1271 1272 1273 1274 |
/* and clear a few registers */ write_reg(0, 0x02814); write_reg(0, 0x0282c); write_reg(0, 0x02904); write_reg(0, 0x02910); /* Release the blanking buffer */ |
2b057e8dc
|
1275 1276 1277 |
if (yi->blanking_ptr) { kfree(yi->blanking_ptr); yi->blanking_ptr = NULL; |
8ac05ae31
|
1278 |
pci_unmap_single(itv->pdev, yi->blanking_dmaptr, 720*16, PCI_DMA_TODEVICE); |
1a0adaf37
|
1279 1280 1281 |
} /* Invalidate the old dimension information */ |
2b057e8dc
|
1282 1283 1284 1285 |
yi->old_frame_info.src_w = 0; yi->old_frame_info.src_h = 0; yi->old_frame_info_args.src_w = 0; yi->old_frame_info_args.src_h = 0; |
1a0adaf37
|
1286 1287 1288 1289 |
/* All done. */ clear_bit(IVTV_F_I_DECODING_YUV, &itv->i_flags); } |