![Panagiotis Issaris](/assets/img/avatar_default.png)
Conversions from kmalloc+memset to k(z|c)alloc. Signed-off-by: Panagiotis Issaris <takis@issaris.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
2455 lines
61 KiB
C
2455 lines
61 KiB
C
/*
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*
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* device driver for philips saa7134 based TV cards
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* video4linux video interface
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*
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* (c) 2001-03 Gerd Knorr <kraxel@bytesex.org> [SuSE Labs]
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <linux/init.h>
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#include <linux/list.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include "saa7134-reg.h"
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#include "saa7134.h"
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#include <media/v4l2-common.h>
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/* Include V4L1 specific functions. Should be removed soon */
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#include <linux/videodev.h>
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/* ------------------------------------------------------------------ */
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static unsigned int video_debug = 0;
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static unsigned int gbuffers = 8;
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static unsigned int noninterlaced = 0;
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static unsigned int gbufsize = 720*576*4;
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static unsigned int gbufsize_max = 720*576*4;
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module_param(video_debug, int, 0644);
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MODULE_PARM_DESC(video_debug,"enable debug messages [video]");
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module_param(gbuffers, int, 0444);
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MODULE_PARM_DESC(gbuffers,"number of capture buffers, range 2-32");
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module_param(noninterlaced, int, 0644);
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MODULE_PARM_DESC(noninterlaced,"video input is noninterlaced");
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#define dprintk(fmt, arg...) if (video_debug) \
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printk(KERN_DEBUG "%s/video: " fmt, dev->name , ## arg)
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/* ------------------------------------------------------------------ */
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/* Defines for Video Output Port Register at address 0x191 */
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/* Bit 0: VIP code T bit polarity */
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#define VP_T_CODE_P_NON_INVERTED 0x00
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#define VP_T_CODE_P_INVERTED 0x01
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/* ------------------------------------------------------------------ */
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/* Defines for Video Output Port Register at address 0x195 */
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/* Bit 2: Video output clock delay control */
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#define VP_CLK_CTRL2_NOT_DELAYED 0x00
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#define VP_CLK_CTRL2_DELAYED 0x04
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/* Bit 1: Video output clock invert control */
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#define VP_CLK_CTRL1_NON_INVERTED 0x00
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#define VP_CLK_CTRL1_INVERTED 0x02
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/* ------------------------------------------------------------------ */
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/* Defines for Video Output Port Register at address 0x196 */
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/* Bits 2 to 0: VSYNC pin video vertical sync type */
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#define VP_VS_TYPE_MASK 0x07
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#define VP_VS_TYPE_OFF 0x00
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#define VP_VS_TYPE_V123 0x01
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#define VP_VS_TYPE_V_ITU 0x02
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#define VP_VS_TYPE_VGATE_L 0x03
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#define VP_VS_TYPE_RESERVED1 0x04
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#define VP_VS_TYPE_RESERVED2 0x05
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#define VP_VS_TYPE_F_ITU 0x06
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#define VP_VS_TYPE_SC_FID 0x07
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/* ------------------------------------------------------------------ */
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/* data structs for video */
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static int video_out[][9] = {
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[CCIR656] = { 0x00, 0xb1, 0x00, 0xa1, 0x00, 0x04, 0x06, 0x00, 0x00 },
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};
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static struct saa7134_format formats[] = {
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{
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.name = "8 bpp gray",
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.fourcc = V4L2_PIX_FMT_GREY,
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.depth = 8,
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.pm = 0x06,
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},{
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.name = "15 bpp RGB, le",
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.fourcc = V4L2_PIX_FMT_RGB555,
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.depth = 16,
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.pm = 0x13 | 0x80,
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},{
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.name = "15 bpp RGB, be",
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.fourcc = V4L2_PIX_FMT_RGB555X,
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.depth = 16,
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.pm = 0x13 | 0x80,
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.bswap = 1,
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},{
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.name = "16 bpp RGB, le",
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.fourcc = V4L2_PIX_FMT_RGB565,
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.depth = 16,
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.pm = 0x10 | 0x80,
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},{
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.name = "16 bpp RGB, be",
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.fourcc = V4L2_PIX_FMT_RGB565X,
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.depth = 16,
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.pm = 0x10 | 0x80,
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.bswap = 1,
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},{
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.name = "24 bpp RGB, le",
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.fourcc = V4L2_PIX_FMT_BGR24,
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.depth = 24,
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.pm = 0x11,
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},{
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.name = "24 bpp RGB, be",
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.fourcc = V4L2_PIX_FMT_RGB24,
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.depth = 24,
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.pm = 0x11,
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.bswap = 1,
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},{
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.name = "32 bpp RGB, le",
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.fourcc = V4L2_PIX_FMT_BGR32,
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.depth = 32,
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.pm = 0x12,
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},{
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.name = "32 bpp RGB, be",
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.fourcc = V4L2_PIX_FMT_RGB32,
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.depth = 32,
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.pm = 0x12,
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.bswap = 1,
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.wswap = 1,
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},{
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.name = "4:2:2 packed, YUYV",
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.fourcc = V4L2_PIX_FMT_YUYV,
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.depth = 16,
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.pm = 0x00,
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.bswap = 1,
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.yuv = 1,
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},{
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.name = "4:2:2 packed, UYVY",
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.fourcc = V4L2_PIX_FMT_UYVY,
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.depth = 16,
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.pm = 0x00,
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.yuv = 1,
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},{
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.name = "4:2:2 planar, Y-Cb-Cr",
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.fourcc = V4L2_PIX_FMT_YUV422P,
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.depth = 16,
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.pm = 0x09,
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.yuv = 1,
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.planar = 1,
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.hshift = 1,
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.vshift = 0,
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},{
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.name = "4:2:0 planar, Y-Cb-Cr",
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.fourcc = V4L2_PIX_FMT_YUV420,
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.depth = 12,
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.pm = 0x0a,
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.yuv = 1,
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.planar = 1,
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.hshift = 1,
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.vshift = 1,
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},{
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.name = "4:2:0 planar, Y-Cb-Cr",
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.fourcc = V4L2_PIX_FMT_YVU420,
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.depth = 12,
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.pm = 0x0a,
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.yuv = 1,
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.planar = 1,
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.uvswap = 1,
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.hshift = 1,
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.vshift = 1,
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}
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};
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#define FORMATS ARRAY_SIZE(formats)
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#define NORM_625_50 \
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.h_start = 0, \
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.h_stop = 719, \
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.video_v_start = 24, \
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.video_v_stop = 311, \
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.vbi_v_start_0 = 7, \
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.vbi_v_stop_0 = 22, \
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.vbi_v_start_1 = 319, \
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.src_timing = 4
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#define NORM_525_60 \
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.h_start = 0, \
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.h_stop = 703, \
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.video_v_start = 23, \
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.video_v_stop = 262, \
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.vbi_v_start_0 = 10, \
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.vbi_v_stop_0 = 21, \
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.vbi_v_start_1 = 273, \
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.src_timing = 7
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static struct saa7134_tvnorm tvnorms[] = {
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{
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.name = "PAL", /* autodetect */
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.id = V4L2_STD_PAL,
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NORM_625_50,
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.sync_control = 0x18,
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.luma_control = 0x40,
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.chroma_ctrl1 = 0x81,
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.chroma_gain = 0x2a,
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.chroma_ctrl2 = 0x06,
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.vgate_misc = 0x1c,
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},{
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.name = "PAL-BG",
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.id = V4L2_STD_PAL_BG,
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NORM_625_50,
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.sync_control = 0x18,
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.luma_control = 0x40,
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.chroma_ctrl1 = 0x81,
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.chroma_gain = 0x2a,
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.chroma_ctrl2 = 0x06,
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.vgate_misc = 0x1c,
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},{
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.name = "PAL-I",
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.id = V4L2_STD_PAL_I,
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NORM_625_50,
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.sync_control = 0x18,
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.luma_control = 0x40,
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.chroma_ctrl1 = 0x81,
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.chroma_gain = 0x2a,
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.chroma_ctrl2 = 0x06,
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.vgate_misc = 0x1c,
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},{
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.name = "PAL-DK",
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.id = V4L2_STD_PAL_DK,
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NORM_625_50,
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.sync_control = 0x18,
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.luma_control = 0x40,
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.chroma_ctrl1 = 0x81,
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.chroma_gain = 0x2a,
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.chroma_ctrl2 = 0x06,
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.vgate_misc = 0x1c,
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},{
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.name = "NTSC",
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.id = V4L2_STD_NTSC,
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NORM_525_60,
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.sync_control = 0x59,
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.luma_control = 0x40,
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.chroma_ctrl1 = 0x89,
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.chroma_gain = 0x2a,
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.chroma_ctrl2 = 0x0e,
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.vgate_misc = 0x18,
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},{
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.name = "SECAM",
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.id = V4L2_STD_SECAM,
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NORM_625_50,
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.sync_control = 0x18, /* old: 0x58, */
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.luma_control = 0x1b,
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.chroma_ctrl1 = 0xd1,
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.chroma_gain = 0x80,
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.chroma_ctrl2 = 0x00,
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.vgate_misc = 0x1c,
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},{
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.name = "PAL-M",
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.id = V4L2_STD_PAL_M,
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NORM_525_60,
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.sync_control = 0x59,
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.luma_control = 0x40,
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.chroma_ctrl1 = 0xb9,
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.chroma_gain = 0x2a,
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.chroma_ctrl2 = 0x0e,
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.vgate_misc = 0x18,
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},{
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.name = "PAL-Nc",
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.id = V4L2_STD_PAL_Nc,
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NORM_625_50,
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.sync_control = 0x18,
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.luma_control = 0x40,
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.chroma_ctrl1 = 0xa1,
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.chroma_gain = 0x2a,
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.chroma_ctrl2 = 0x06,
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.vgate_misc = 0x1c,
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},{
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.name = "PAL-60",
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.id = V4L2_STD_PAL_60,
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.h_start = 0,
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.h_stop = 719,
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.video_v_start = 23,
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.video_v_stop = 262,
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.vbi_v_start_0 = 10,
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.vbi_v_stop_0 = 21,
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.vbi_v_start_1 = 273,
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.src_timing = 7,
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.sync_control = 0x18,
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.luma_control = 0x40,
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.chroma_ctrl1 = 0x81,
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.chroma_gain = 0x2a,
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.chroma_ctrl2 = 0x06,
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.vgate_misc = 0x1c,
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}
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};
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#define TVNORMS ARRAY_SIZE(tvnorms)
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#define V4L2_CID_PRIVATE_INVERT (V4L2_CID_PRIVATE_BASE + 0)
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#define V4L2_CID_PRIVATE_Y_ODD (V4L2_CID_PRIVATE_BASE + 1)
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#define V4L2_CID_PRIVATE_Y_EVEN (V4L2_CID_PRIVATE_BASE + 2)
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#define V4L2_CID_PRIVATE_AUTOMUTE (V4L2_CID_PRIVATE_BASE + 3)
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#define V4L2_CID_PRIVATE_LASTP1 (V4L2_CID_PRIVATE_BASE + 4)
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static const struct v4l2_queryctrl no_ctrl = {
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.name = "42",
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.flags = V4L2_CTRL_FLAG_DISABLED,
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};
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static const struct v4l2_queryctrl video_ctrls[] = {
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/* --- video --- */
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{
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.id = V4L2_CID_BRIGHTNESS,
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.name = "Brightness",
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.minimum = 0,
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.maximum = 255,
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.step = 1,
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.default_value = 128,
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.type = V4L2_CTRL_TYPE_INTEGER,
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},{
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.id = V4L2_CID_CONTRAST,
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.name = "Contrast",
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.minimum = 0,
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.maximum = 127,
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.step = 1,
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.default_value = 68,
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.type = V4L2_CTRL_TYPE_INTEGER,
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},{
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.id = V4L2_CID_SATURATION,
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.name = "Saturation",
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.minimum = 0,
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.maximum = 127,
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.step = 1,
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.default_value = 64,
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.type = V4L2_CTRL_TYPE_INTEGER,
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},{
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.id = V4L2_CID_HUE,
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.name = "Hue",
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.minimum = -128,
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.maximum = 127,
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.step = 1,
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.default_value = 0,
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.type = V4L2_CTRL_TYPE_INTEGER,
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},{
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.id = V4L2_CID_HFLIP,
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.name = "Mirror",
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.minimum = 0,
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.maximum = 1,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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},
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/* --- audio --- */
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{
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.id = V4L2_CID_AUDIO_MUTE,
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.name = "Mute",
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.minimum = 0,
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.maximum = 1,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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},{
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.id = V4L2_CID_AUDIO_VOLUME,
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.name = "Volume",
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.minimum = -15,
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.maximum = 15,
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.step = 1,
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.default_value = 0,
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.type = V4L2_CTRL_TYPE_INTEGER,
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},
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/* --- private --- */
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{
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.id = V4L2_CID_PRIVATE_INVERT,
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.name = "Invert",
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.minimum = 0,
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.maximum = 1,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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},{
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.id = V4L2_CID_PRIVATE_Y_ODD,
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.name = "y offset odd field",
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.minimum = 0,
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.maximum = 128,
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.default_value = 0,
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.type = V4L2_CTRL_TYPE_INTEGER,
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},{
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.id = V4L2_CID_PRIVATE_Y_EVEN,
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.name = "y offset even field",
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.minimum = 0,
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.maximum = 128,
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.default_value = 0,
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.type = V4L2_CTRL_TYPE_INTEGER,
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},{
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.id = V4L2_CID_PRIVATE_AUTOMUTE,
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.name = "automute",
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.minimum = 0,
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.maximum = 1,
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.default_value = 1,
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.type = V4L2_CTRL_TYPE_BOOLEAN,
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}
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};
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static const unsigned int CTRLS = ARRAY_SIZE(video_ctrls);
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static const struct v4l2_queryctrl* ctrl_by_id(unsigned int id)
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{
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unsigned int i;
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for (i = 0; i < CTRLS; i++)
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if (video_ctrls[i].id == id)
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return video_ctrls+i;
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return NULL;
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}
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static struct saa7134_format* format_by_fourcc(unsigned int fourcc)
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{
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unsigned int i;
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for (i = 0; i < FORMATS; i++)
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if (formats[i].fourcc == fourcc)
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return formats+i;
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return NULL;
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}
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/* ----------------------------------------------------------------------- */
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/* resource management */
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static int res_get(struct saa7134_dev *dev, struct saa7134_fh *fh, unsigned int bit)
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{
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if (fh->resources & bit)
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/* have it already allocated */
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return 1;
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/* is it free? */
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down(&dev->lock);
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if (dev->resources & bit) {
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/* no, someone else uses it */
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up(&dev->lock);
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return 0;
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}
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/* it's free, grab it */
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fh->resources |= bit;
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dev->resources |= bit;
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dprintk("res: get %d\n",bit);
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up(&dev->lock);
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return 1;
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}
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static
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int res_check(struct saa7134_fh *fh, unsigned int bit)
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{
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return (fh->resources & bit);
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}
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static
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int res_locked(struct saa7134_dev *dev, unsigned int bit)
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{
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return (dev->resources & bit);
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}
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static
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void res_free(struct saa7134_dev *dev, struct saa7134_fh *fh, unsigned int bits)
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{
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if ((fh->resources & bits) != bits)
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BUG();
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down(&dev->lock);
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fh->resources &= ~bits;
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dev->resources &= ~bits;
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dprintk("res: put %d\n",bits);
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up(&dev->lock);
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}
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/* ------------------------------------------------------------------ */
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|
|
|
static void set_tvnorm(struct saa7134_dev *dev, struct saa7134_tvnorm *norm)
|
|
{
|
|
int luma_control,sync_control,mux;
|
|
|
|
dprintk("set tv norm = %s\n",norm->name);
|
|
dev->tvnorm = norm;
|
|
|
|
mux = card_in(dev,dev->ctl_input).vmux;
|
|
luma_control = norm->luma_control;
|
|
sync_control = norm->sync_control;
|
|
|
|
if (mux > 5)
|
|
luma_control |= 0x80; /* svideo */
|
|
if (noninterlaced || dev->nosignal)
|
|
sync_control |= 0x20;
|
|
|
|
/* setup cropping */
|
|
dev->crop_bounds.left = norm->h_start;
|
|
dev->crop_defrect.left = norm->h_start;
|
|
dev->crop_bounds.width = norm->h_stop - norm->h_start +1;
|
|
dev->crop_defrect.width = norm->h_stop - norm->h_start +1;
|
|
|
|
dev->crop_bounds.top = (norm->vbi_v_stop_0+1)*2;
|
|
dev->crop_defrect.top = norm->video_v_start*2;
|
|
dev->crop_bounds.height = ((norm->id & V4L2_STD_525_60) ? 524 : 624)
|
|
- dev->crop_bounds.top;
|
|
dev->crop_defrect.height = (norm->video_v_stop - norm->video_v_start +1)*2;
|
|
|
|
dev->crop_current = dev->crop_defrect;
|
|
|
|
/* setup video decoder */
|
|
saa_writeb(SAA7134_INCR_DELAY, 0x08);
|
|
saa_writeb(SAA7134_ANALOG_IN_CTRL1, 0xc0 | mux);
|
|
saa_writeb(SAA7134_ANALOG_IN_CTRL2, 0x00);
|
|
|
|
saa_writeb(SAA7134_ANALOG_IN_CTRL3, 0x90);
|
|
saa_writeb(SAA7134_ANALOG_IN_CTRL4, 0x90);
|
|
saa_writeb(SAA7134_HSYNC_START, 0xeb);
|
|
saa_writeb(SAA7134_HSYNC_STOP, 0xe0);
|
|
saa_writeb(SAA7134_SOURCE_TIMING1, norm->src_timing);
|
|
|
|
saa_writeb(SAA7134_SYNC_CTRL, sync_control);
|
|
saa_writeb(SAA7134_LUMA_CTRL, luma_control);
|
|
saa_writeb(SAA7134_DEC_LUMA_BRIGHT, dev->ctl_bright);
|
|
saa_writeb(SAA7134_DEC_LUMA_CONTRAST, dev->ctl_contrast);
|
|
|
|
saa_writeb(SAA7134_DEC_CHROMA_SATURATION, dev->ctl_saturation);
|
|
saa_writeb(SAA7134_DEC_CHROMA_HUE, dev->ctl_hue);
|
|
saa_writeb(SAA7134_CHROMA_CTRL1, norm->chroma_ctrl1);
|
|
saa_writeb(SAA7134_CHROMA_GAIN, norm->chroma_gain);
|
|
|
|
saa_writeb(SAA7134_CHROMA_CTRL2, norm->chroma_ctrl2);
|
|
saa_writeb(SAA7134_MODE_DELAY_CTRL, 0x00);
|
|
|
|
saa_writeb(SAA7134_ANALOG_ADC, 0x01);
|
|
saa_writeb(SAA7134_VGATE_START, 0x11);
|
|
saa_writeb(SAA7134_VGATE_STOP, 0xfe);
|
|
saa_writeb(SAA7134_MISC_VGATE_MSB, norm->vgate_misc);
|
|
saa_writeb(SAA7134_RAW_DATA_GAIN, 0x40);
|
|
saa_writeb(SAA7134_RAW_DATA_OFFSET, 0x80);
|
|
|
|
saa7134_i2c_call_clients(dev,VIDIOC_S_STD,&norm->id);
|
|
}
|
|
|
|
static void video_mux(struct saa7134_dev *dev, int input)
|
|
{
|
|
dprintk("video input = %d [%s]\n",input,card_in(dev,input).name);
|
|
dev->ctl_input = input;
|
|
set_tvnorm(dev,dev->tvnorm);
|
|
saa7134_tvaudio_setinput(dev,&card_in(dev,input));
|
|
}
|
|
|
|
static void set_h_prescale(struct saa7134_dev *dev, int task, int prescale)
|
|
{
|
|
static const struct {
|
|
int xpsc;
|
|
int xacl;
|
|
int xc2_1;
|
|
int xdcg;
|
|
int vpfy;
|
|
} vals[] = {
|
|
/* XPSC XACL XC2_1 XDCG VPFY */
|
|
{ 1, 0, 0, 0, 0 },
|
|
{ 2, 2, 1, 2, 2 },
|
|
{ 3, 4, 1, 3, 2 },
|
|
{ 4, 8, 1, 4, 2 },
|
|
{ 5, 8, 1, 4, 2 },
|
|
{ 6, 8, 1, 4, 3 },
|
|
{ 7, 8, 1, 4, 3 },
|
|
{ 8, 15, 0, 4, 3 },
|
|
{ 9, 15, 0, 4, 3 },
|
|
{ 10, 16, 1, 5, 3 },
|
|
};
|
|
static const int count = ARRAY_SIZE(vals);
|
|
int i;
|
|
|
|
for (i = 0; i < count; i++)
|
|
if (vals[i].xpsc == prescale)
|
|
break;
|
|
if (i == count)
|
|
return;
|
|
|
|
saa_writeb(SAA7134_H_PRESCALE(task), vals[i].xpsc);
|
|
saa_writeb(SAA7134_ACC_LENGTH(task), vals[i].xacl);
|
|
saa_writeb(SAA7134_LEVEL_CTRL(task),
|
|
(vals[i].xc2_1 << 3) | (vals[i].xdcg));
|
|
saa_andorb(SAA7134_FIR_PREFILTER_CTRL(task), 0x0f,
|
|
(vals[i].vpfy << 2) | vals[i].vpfy);
|
|
}
|
|
|
|
static void set_v_scale(struct saa7134_dev *dev, int task, int yscale)
|
|
{
|
|
int val,mirror;
|
|
|
|
saa_writeb(SAA7134_V_SCALE_RATIO1(task), yscale & 0xff);
|
|
saa_writeb(SAA7134_V_SCALE_RATIO2(task), yscale >> 8);
|
|
|
|
mirror = (dev->ctl_mirror) ? 0x02 : 0x00;
|
|
if (yscale < 2048) {
|
|
/* LPI */
|
|
dprintk("yscale LPI yscale=%d\n",yscale);
|
|
saa_writeb(SAA7134_V_FILTER(task), 0x00 | mirror);
|
|
saa_writeb(SAA7134_LUMA_CONTRAST(task), 0x40);
|
|
saa_writeb(SAA7134_CHROMA_SATURATION(task), 0x40);
|
|
} else {
|
|
/* ACM */
|
|
val = 0x40 * 1024 / yscale;
|
|
dprintk("yscale ACM yscale=%d val=0x%x\n",yscale,val);
|
|
saa_writeb(SAA7134_V_FILTER(task), 0x01 | mirror);
|
|
saa_writeb(SAA7134_LUMA_CONTRAST(task), val);
|
|
saa_writeb(SAA7134_CHROMA_SATURATION(task), val);
|
|
}
|
|
saa_writeb(SAA7134_LUMA_BRIGHT(task), 0x80);
|
|
}
|
|
|
|
static void set_size(struct saa7134_dev *dev, int task,
|
|
int width, int height, int interlace)
|
|
{
|
|
int prescale,xscale,yscale,y_even,y_odd;
|
|
int h_start, h_stop, v_start, v_stop;
|
|
int div = interlace ? 2 : 1;
|
|
|
|
/* setup video scaler */
|
|
h_start = dev->crop_current.left;
|
|
v_start = dev->crop_current.top/2;
|
|
h_stop = (dev->crop_current.left + dev->crop_current.width -1);
|
|
v_stop = (dev->crop_current.top + dev->crop_current.height -1)/2;
|
|
|
|
saa_writeb(SAA7134_VIDEO_H_START1(task), h_start & 0xff);
|
|
saa_writeb(SAA7134_VIDEO_H_START2(task), h_start >> 8);
|
|
saa_writeb(SAA7134_VIDEO_H_STOP1(task), h_stop & 0xff);
|
|
saa_writeb(SAA7134_VIDEO_H_STOP2(task), h_stop >> 8);
|
|
saa_writeb(SAA7134_VIDEO_V_START1(task), v_start & 0xff);
|
|
saa_writeb(SAA7134_VIDEO_V_START2(task), v_start >> 8);
|
|
saa_writeb(SAA7134_VIDEO_V_STOP1(task), v_stop & 0xff);
|
|
saa_writeb(SAA7134_VIDEO_V_STOP2(task), v_stop >> 8);
|
|
|
|
prescale = dev->crop_current.width / width;
|
|
if (0 == prescale)
|
|
prescale = 1;
|
|
xscale = 1024 * dev->crop_current.width / prescale / width;
|
|
yscale = 512 * div * dev->crop_current.height / height;
|
|
dprintk("prescale=%d xscale=%d yscale=%d\n",prescale,xscale,yscale);
|
|
set_h_prescale(dev,task,prescale);
|
|
saa_writeb(SAA7134_H_SCALE_INC1(task), xscale & 0xff);
|
|
saa_writeb(SAA7134_H_SCALE_INC2(task), xscale >> 8);
|
|
set_v_scale(dev,task,yscale);
|
|
|
|
saa_writeb(SAA7134_VIDEO_PIXELS1(task), width & 0xff);
|
|
saa_writeb(SAA7134_VIDEO_PIXELS2(task), width >> 8);
|
|
saa_writeb(SAA7134_VIDEO_LINES1(task), height/div & 0xff);
|
|
saa_writeb(SAA7134_VIDEO_LINES2(task), height/div >> 8);
|
|
|
|
/* deinterlace y offsets */
|
|
y_odd = dev->ctl_y_odd;
|
|
y_even = dev->ctl_y_even;
|
|
saa_writeb(SAA7134_V_PHASE_OFFSET0(task), y_odd);
|
|
saa_writeb(SAA7134_V_PHASE_OFFSET1(task), y_even);
|
|
saa_writeb(SAA7134_V_PHASE_OFFSET2(task), y_odd);
|
|
saa_writeb(SAA7134_V_PHASE_OFFSET3(task), y_even);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------ */
|
|
|
|
struct cliplist {
|
|
__u16 position;
|
|
__u8 enable;
|
|
__u8 disable;
|
|
};
|
|
|
|
static void sort_cliplist(struct cliplist *cl, int entries)
|
|
{
|
|
struct cliplist swap;
|
|
int i,j,n;
|
|
|
|
for (i = entries-2; i >= 0; i--) {
|
|
for (n = 0, j = 0; j <= i; j++) {
|
|
if (cl[j].position > cl[j+1].position) {
|
|
swap = cl[j];
|
|
cl[j] = cl[j+1];
|
|
cl[j+1] = swap;
|
|
n++;
|
|
}
|
|
}
|
|
if (0 == n)
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void set_cliplist(struct saa7134_dev *dev, int reg,
|
|
struct cliplist *cl, int entries, char *name)
|
|
{
|
|
__u8 winbits = 0;
|
|
int i;
|
|
|
|
for (i = 0; i < entries; i++) {
|
|
winbits |= cl[i].enable;
|
|
winbits &= ~cl[i].disable;
|
|
if (i < 15 && cl[i].position == cl[i+1].position)
|
|
continue;
|
|
saa_writeb(reg + 0, winbits);
|
|
saa_writeb(reg + 2, cl[i].position & 0xff);
|
|
saa_writeb(reg + 3, cl[i].position >> 8);
|
|
dprintk("clip: %s winbits=%02x pos=%d\n",
|
|
name,winbits,cl[i].position);
|
|
reg += 8;
|
|
}
|
|
for (; reg < 0x400; reg += 8) {
|
|
saa_writeb(reg+ 0, 0);
|
|
saa_writeb(reg + 1, 0);
|
|
saa_writeb(reg + 2, 0);
|
|
saa_writeb(reg + 3, 0);
|
|
}
|
|
}
|
|
|
|
static int clip_range(int val)
|
|
{
|
|
if (val < 0)
|
|
val = 0;
|
|
return val;
|
|
}
|
|
|
|
static int setup_clipping(struct saa7134_dev *dev, struct v4l2_clip *clips,
|
|
int nclips, int interlace)
|
|
{
|
|
struct cliplist col[16], row[16];
|
|
int cols, rows, i;
|
|
int div = interlace ? 2 : 1;
|
|
|
|
memset(col,0,sizeof(col)); cols = 0;
|
|
memset(row,0,sizeof(row)); rows = 0;
|
|
for (i = 0; i < nclips && i < 8; i++) {
|
|
col[cols].position = clip_range(clips[i].c.left);
|
|
col[cols].enable = (1 << i);
|
|
cols++;
|
|
col[cols].position = clip_range(clips[i].c.left+clips[i].c.width);
|
|
col[cols].disable = (1 << i);
|
|
cols++;
|
|
row[rows].position = clip_range(clips[i].c.top / div);
|
|
row[rows].enable = (1 << i);
|
|
rows++;
|
|
row[rows].position = clip_range((clips[i].c.top + clips[i].c.height)
|
|
/ div);
|
|
row[rows].disable = (1 << i);
|
|
rows++;
|
|
}
|
|
sort_cliplist(col,cols);
|
|
sort_cliplist(row,rows);
|
|
set_cliplist(dev,0x380,col,cols,"cols");
|
|
set_cliplist(dev,0x384,row,rows,"rows");
|
|
return 0;
|
|
}
|
|
|
|
static int verify_preview(struct saa7134_dev *dev, struct v4l2_window *win)
|
|
{
|
|
enum v4l2_field field;
|
|
int maxw, maxh;
|
|
|
|
if (NULL == dev->ovbuf.base)
|
|
return -EINVAL;
|
|
if (NULL == dev->ovfmt)
|
|
return -EINVAL;
|
|
if (win->w.width < 48 || win->w.height < 32)
|
|
return -EINVAL;
|
|
if (win->clipcount > 2048)
|
|
return -EINVAL;
|
|
|
|
field = win->field;
|
|
maxw = dev->crop_current.width;
|
|
maxh = dev->crop_current.height;
|
|
|
|
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:
|
|
maxh = maxh / 2;
|
|
break;
|
|
case V4L2_FIELD_INTERLACED:
|
|
break;
|
|
default:
|
|
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 start_preview(struct saa7134_dev *dev, struct saa7134_fh *fh)
|
|
{
|
|
unsigned long base,control,bpl;
|
|
int err;
|
|
|
|
err = verify_preview(dev,&fh->win);
|
|
if (0 != err)
|
|
return err;
|
|
|
|
dev->ovfield = fh->win.field;
|
|
dprintk("start_preview %dx%d+%d+%d %s field=%s\n",
|
|
fh->win.w.width,fh->win.w.height,
|
|
fh->win.w.left,fh->win.w.top,
|
|
dev->ovfmt->name,v4l2_field_names[dev->ovfield]);
|
|
|
|
/* setup window + clipping */
|
|
set_size(dev,TASK_B,fh->win.w.width,fh->win.w.height,
|
|
V4L2_FIELD_HAS_BOTH(dev->ovfield));
|
|
setup_clipping(dev,fh->clips,fh->nclips,
|
|
V4L2_FIELD_HAS_BOTH(dev->ovfield));
|
|
if (dev->ovfmt->yuv)
|
|
saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x03);
|
|
else
|
|
saa_andorb(SAA7134_DATA_PATH(TASK_B), 0x3f, 0x01);
|
|
saa_writeb(SAA7134_OFMT_VIDEO_B, dev->ovfmt->pm | 0x20);
|
|
|
|
/* dma: setup channel 1 (= Video Task B) */
|
|
base = (unsigned long)dev->ovbuf.base;
|
|
base += dev->ovbuf.fmt.bytesperline * fh->win.w.top;
|
|
base += dev->ovfmt->depth/8 * fh->win.w.left;
|
|
bpl = dev->ovbuf.fmt.bytesperline;
|
|
control = SAA7134_RS_CONTROL_BURST_16;
|
|
if (dev->ovfmt->bswap)
|
|
control |= SAA7134_RS_CONTROL_BSWAP;
|
|
if (dev->ovfmt->wswap)
|
|
control |= SAA7134_RS_CONTROL_WSWAP;
|
|
if (V4L2_FIELD_HAS_BOTH(dev->ovfield)) {
|
|
saa_writel(SAA7134_RS_BA1(1),base);
|
|
saa_writel(SAA7134_RS_BA2(1),base+bpl);
|
|
saa_writel(SAA7134_RS_PITCH(1),bpl*2);
|
|
saa_writel(SAA7134_RS_CONTROL(1),control);
|
|
} else {
|
|
saa_writel(SAA7134_RS_BA1(1),base);
|
|
saa_writel(SAA7134_RS_BA2(1),base);
|
|
saa_writel(SAA7134_RS_PITCH(1),bpl);
|
|
saa_writel(SAA7134_RS_CONTROL(1),control);
|
|
}
|
|
|
|
/* start dma */
|
|
dev->ovenable = 1;
|
|
saa7134_set_dmabits(dev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int stop_preview(struct saa7134_dev *dev, struct saa7134_fh *fh)
|
|
{
|
|
dev->ovenable = 0;
|
|
saa7134_set_dmabits(dev);
|
|
return 0;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------ */
|
|
|
|
static int buffer_activate(struct saa7134_dev *dev,
|
|
struct saa7134_buf *buf,
|
|
struct saa7134_buf *next)
|
|
{
|
|
unsigned long base,control,bpl;
|
|
unsigned long bpl_uv,lines_uv,base2,base3,tmp; /* planar */
|
|
|
|
dprintk("buffer_activate buf=%p\n",buf);
|
|
buf->vb.state = STATE_ACTIVE;
|
|
buf->top_seen = 0;
|
|
|
|
set_size(dev,TASK_A,buf->vb.width,buf->vb.height,
|
|
V4L2_FIELD_HAS_BOTH(buf->vb.field));
|
|
if (buf->fmt->yuv)
|
|
saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x03);
|
|
else
|
|
saa_andorb(SAA7134_DATA_PATH(TASK_A), 0x3f, 0x01);
|
|
saa_writeb(SAA7134_OFMT_VIDEO_A, buf->fmt->pm);
|
|
|
|
/* DMA: setup channel 0 (= Video Task A0) */
|
|
base = saa7134_buffer_base(buf);
|
|
if (buf->fmt->planar)
|
|
bpl = buf->vb.width;
|
|
else
|
|
bpl = (buf->vb.width * buf->fmt->depth) / 8;
|
|
control = SAA7134_RS_CONTROL_BURST_16 |
|
|
SAA7134_RS_CONTROL_ME |
|
|
(buf->pt->dma >> 12);
|
|
if (buf->fmt->bswap)
|
|
control |= SAA7134_RS_CONTROL_BSWAP;
|
|
if (buf->fmt->wswap)
|
|
control |= SAA7134_RS_CONTROL_WSWAP;
|
|
if (V4L2_FIELD_HAS_BOTH(buf->vb.field)) {
|
|
/* interlaced */
|
|
saa_writel(SAA7134_RS_BA1(0),base);
|
|
saa_writel(SAA7134_RS_BA2(0),base+bpl);
|
|
saa_writel(SAA7134_RS_PITCH(0),bpl*2);
|
|
} else {
|
|
/* non-interlaced */
|
|
saa_writel(SAA7134_RS_BA1(0),base);
|
|
saa_writel(SAA7134_RS_BA2(0),base);
|
|
saa_writel(SAA7134_RS_PITCH(0),bpl);
|
|
}
|
|
saa_writel(SAA7134_RS_CONTROL(0),control);
|
|
|
|
if (buf->fmt->planar) {
|
|
/* DMA: setup channel 4+5 (= planar task A) */
|
|
bpl_uv = bpl >> buf->fmt->hshift;
|
|
lines_uv = buf->vb.height >> buf->fmt->vshift;
|
|
base2 = base + bpl * buf->vb.height;
|
|
base3 = base2 + bpl_uv * lines_uv;
|
|
if (buf->fmt->uvswap)
|
|
tmp = base2, base2 = base3, base3 = tmp;
|
|
dprintk("uv: bpl=%ld lines=%ld base2/3=%ld/%ld\n",
|
|
bpl_uv,lines_uv,base2,base3);
|
|
if (V4L2_FIELD_HAS_BOTH(buf->vb.field)) {
|
|
/* interlaced */
|
|
saa_writel(SAA7134_RS_BA1(4),base2);
|
|
saa_writel(SAA7134_RS_BA2(4),base2+bpl_uv);
|
|
saa_writel(SAA7134_RS_PITCH(4),bpl_uv*2);
|
|
saa_writel(SAA7134_RS_BA1(5),base3);
|
|
saa_writel(SAA7134_RS_BA2(5),base3+bpl_uv);
|
|
saa_writel(SAA7134_RS_PITCH(5),bpl_uv*2);
|
|
} else {
|
|
/* non-interlaced */
|
|
saa_writel(SAA7134_RS_BA1(4),base2);
|
|
saa_writel(SAA7134_RS_BA2(4),base2);
|
|
saa_writel(SAA7134_RS_PITCH(4),bpl_uv);
|
|
saa_writel(SAA7134_RS_BA1(5),base3);
|
|
saa_writel(SAA7134_RS_BA2(5),base3);
|
|
saa_writel(SAA7134_RS_PITCH(5),bpl_uv);
|
|
}
|
|
saa_writel(SAA7134_RS_CONTROL(4),control);
|
|
saa_writel(SAA7134_RS_CONTROL(5),control);
|
|
}
|
|
|
|
/* start DMA */
|
|
saa7134_set_dmabits(dev);
|
|
mod_timer(&dev->video_q.timeout, jiffies+BUFFER_TIMEOUT);
|
|
return 0;
|
|
}
|
|
|
|
static int buffer_prepare(struct videobuf_queue *q,
|
|
struct videobuf_buffer *vb,
|
|
enum v4l2_field field)
|
|
{
|
|
struct saa7134_fh *fh = q->priv_data;
|
|
struct saa7134_dev *dev = fh->dev;
|
|
struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
|
|
unsigned int size;
|
|
int err;
|
|
|
|
/* sanity checks */
|
|
if (NULL == fh->fmt)
|
|
return -EINVAL;
|
|
if (fh->width < 48 ||
|
|
fh->height < 32 ||
|
|
fh->width/4 > dev->crop_current.width ||
|
|
fh->height/4 > dev->crop_current.height ||
|
|
fh->width > dev->crop_bounds.width ||
|
|
fh->height > dev->crop_bounds.height)
|
|
return -EINVAL;
|
|
size = (fh->width * fh->height * fh->fmt->depth) >> 3;
|
|
if (0 != buf->vb.baddr && buf->vb.bsize < size)
|
|
return -EINVAL;
|
|
|
|
dprintk("buffer_prepare [%d,size=%dx%d,bytes=%d,fields=%s,%s]\n",
|
|
vb->i,fh->width,fh->height,size,v4l2_field_names[field],
|
|
fh->fmt->name);
|
|
if (buf->vb.width != fh->width ||
|
|
buf->vb.height != fh->height ||
|
|
buf->vb.size != size ||
|
|
buf->vb.field != field ||
|
|
buf->fmt != fh->fmt) {
|
|
saa7134_dma_free(dev,buf);
|
|
}
|
|
|
|
if (STATE_NEEDS_INIT == buf->vb.state) {
|
|
buf->vb.width = fh->width;
|
|
buf->vb.height = fh->height;
|
|
buf->vb.size = size;
|
|
buf->vb.field = field;
|
|
buf->fmt = fh->fmt;
|
|
buf->pt = &fh->pt_cap;
|
|
|
|
err = videobuf_iolock(dev->pci,&buf->vb,&dev->ovbuf);
|
|
if (err)
|
|
goto oops;
|
|
err = saa7134_pgtable_build(dev->pci,buf->pt,
|
|
buf->vb.dma.sglist,
|
|
buf->vb.dma.sglen,
|
|
saa7134_buffer_startpage(buf));
|
|
if (err)
|
|
goto oops;
|
|
}
|
|
buf->vb.state = STATE_PREPARED;
|
|
buf->activate = buffer_activate;
|
|
return 0;
|
|
|
|
oops:
|
|
saa7134_dma_free(dev,buf);
|
|
return err;
|
|
}
|
|
|
|
static int
|
|
buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
|
|
{
|
|
struct saa7134_fh *fh = q->priv_data;
|
|
|
|
*size = fh->fmt->depth * fh->width * fh->height >> 3;
|
|
if (0 == *count)
|
|
*count = gbuffers;
|
|
*count = saa7134_buffer_count(*size,*count);
|
|
return 0;
|
|
}
|
|
|
|
static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
|
|
{
|
|
struct saa7134_fh *fh = q->priv_data;
|
|
struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
|
|
|
|
saa7134_buffer_queue(fh->dev,&fh->dev->video_q,buf);
|
|
}
|
|
|
|
static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
|
|
{
|
|
struct saa7134_fh *fh = q->priv_data;
|
|
struct saa7134_buf *buf = container_of(vb,struct saa7134_buf,vb);
|
|
|
|
saa7134_dma_free(fh->dev,buf);
|
|
}
|
|
|
|
static struct videobuf_queue_ops video_qops = {
|
|
.buf_setup = buffer_setup,
|
|
.buf_prepare = buffer_prepare,
|
|
.buf_queue = buffer_queue,
|
|
.buf_release = buffer_release,
|
|
};
|
|
|
|
/* ------------------------------------------------------------------ */
|
|
|
|
static int get_control(struct saa7134_dev *dev, struct v4l2_control *c)
|
|
{
|
|
const struct v4l2_queryctrl* ctrl;
|
|
|
|
ctrl = ctrl_by_id(c->id);
|
|
if (NULL == ctrl)
|
|
return -EINVAL;
|
|
switch (c->id) {
|
|
case V4L2_CID_BRIGHTNESS:
|
|
c->value = dev->ctl_bright;
|
|
break;
|
|
case V4L2_CID_HUE:
|
|
c->value = dev->ctl_hue;
|
|
break;
|
|
case V4L2_CID_CONTRAST:
|
|
c->value = dev->ctl_contrast;
|
|
break;
|
|
case V4L2_CID_SATURATION:
|
|
c->value = dev->ctl_saturation;
|
|
break;
|
|
case V4L2_CID_AUDIO_MUTE:
|
|
c->value = dev->ctl_mute;
|
|
break;
|
|
case V4L2_CID_AUDIO_VOLUME:
|
|
c->value = dev->ctl_volume;
|
|
break;
|
|
case V4L2_CID_PRIVATE_INVERT:
|
|
c->value = dev->ctl_invert;
|
|
break;
|
|
case V4L2_CID_HFLIP:
|
|
c->value = dev->ctl_mirror;
|
|
break;
|
|
case V4L2_CID_PRIVATE_Y_EVEN:
|
|
c->value = dev->ctl_y_even;
|
|
break;
|
|
case V4L2_CID_PRIVATE_Y_ODD:
|
|
c->value = dev->ctl_y_odd;
|
|
break;
|
|
case V4L2_CID_PRIVATE_AUTOMUTE:
|
|
c->value = dev->ctl_automute;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int set_control(struct saa7134_dev *dev, struct saa7134_fh *fh,
|
|
struct v4l2_control *c)
|
|
{
|
|
const struct v4l2_queryctrl* ctrl;
|
|
unsigned long flags;
|
|
int restart_overlay = 0;
|
|
|
|
ctrl = ctrl_by_id(c->id);
|
|
if (NULL == ctrl)
|
|
return -EINVAL;
|
|
dprintk("set_control name=%s val=%d\n",ctrl->name,c->value);
|
|
switch (ctrl->type) {
|
|
case V4L2_CTRL_TYPE_BOOLEAN:
|
|
case V4L2_CTRL_TYPE_MENU:
|
|
case V4L2_CTRL_TYPE_INTEGER:
|
|
if (c->value < ctrl->minimum)
|
|
c->value = ctrl->minimum;
|
|
if (c->value > ctrl->maximum)
|
|
c->value = ctrl->maximum;
|
|
break;
|
|
default:
|
|
/* nothing */;
|
|
};
|
|
switch (c->id) {
|
|
case V4L2_CID_BRIGHTNESS:
|
|
dev->ctl_bright = c->value;
|
|
saa_writeb(SAA7134_DEC_LUMA_BRIGHT, dev->ctl_bright);
|
|
break;
|
|
case V4L2_CID_HUE:
|
|
dev->ctl_hue = c->value;
|
|
saa_writeb(SAA7134_DEC_CHROMA_HUE, dev->ctl_hue);
|
|
break;
|
|
case V4L2_CID_CONTRAST:
|
|
dev->ctl_contrast = c->value;
|
|
saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
|
|
dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
|
|
break;
|
|
case V4L2_CID_SATURATION:
|
|
dev->ctl_saturation = c->value;
|
|
saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
|
|
dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
|
|
break;
|
|
case V4L2_CID_AUDIO_MUTE:
|
|
dev->ctl_mute = c->value;
|
|
saa7134_tvaudio_setmute(dev);
|
|
break;
|
|
case V4L2_CID_AUDIO_VOLUME:
|
|
dev->ctl_volume = c->value;
|
|
saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
|
|
break;
|
|
case V4L2_CID_PRIVATE_INVERT:
|
|
dev->ctl_invert = c->value;
|
|
saa_writeb(SAA7134_DEC_LUMA_CONTRAST,
|
|
dev->ctl_invert ? -dev->ctl_contrast : dev->ctl_contrast);
|
|
saa_writeb(SAA7134_DEC_CHROMA_SATURATION,
|
|
dev->ctl_invert ? -dev->ctl_saturation : dev->ctl_saturation);
|
|
break;
|
|
case V4L2_CID_HFLIP:
|
|
dev->ctl_mirror = c->value;
|
|
restart_overlay = 1;
|
|
break;
|
|
case V4L2_CID_PRIVATE_Y_EVEN:
|
|
dev->ctl_y_even = c->value;
|
|
restart_overlay = 1;
|
|
break;
|
|
case V4L2_CID_PRIVATE_Y_ODD:
|
|
dev->ctl_y_odd = c->value;
|
|
restart_overlay = 1;
|
|
break;
|
|
case V4L2_CID_PRIVATE_AUTOMUTE:
|
|
dev->ctl_automute = c->value;
|
|
if (dev->tda9887_conf) {
|
|
if (dev->ctl_automute)
|
|
dev->tda9887_conf |= TDA9887_AUTOMUTE;
|
|
else
|
|
dev->tda9887_conf &= ~TDA9887_AUTOMUTE;
|
|
saa7134_i2c_call_clients(dev, TDA9887_SET_CONFIG,
|
|
&dev->tda9887_conf);
|
|
}
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
if (restart_overlay && fh && res_check(fh, RESOURCE_OVERLAY)) {
|
|
spin_lock_irqsave(&dev->slock,flags);
|
|
stop_preview(dev,fh);
|
|
start_preview(dev,fh);
|
|
spin_unlock_irqrestore(&dev->slock,flags);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* ------------------------------------------------------------------ */
|
|
|
|
static struct videobuf_queue* saa7134_queue(struct saa7134_fh *fh)
|
|
{
|
|
struct videobuf_queue* q = NULL;
|
|
|
|
switch (fh->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
q = &fh->cap;
|
|
break;
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
|
q = &fh->vbi;
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
return q;
|
|
}
|
|
|
|
static int saa7134_resource(struct saa7134_fh *fh)
|
|
{
|
|
int res = 0;
|
|
|
|
switch (fh->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
res = RESOURCE_VIDEO;
|
|
break;
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
|
res = RESOURCE_VBI;
|
|
break;
|
|
default:
|
|
BUG();
|
|
}
|
|
return res;
|
|
}
|
|
|
|
static int video_open(struct inode *inode, struct file *file)
|
|
{
|
|
int minor = iminor(inode);
|
|
struct saa7134_dev *h,*dev = NULL;
|
|
struct saa7134_fh *fh;
|
|
struct list_head *list;
|
|
enum v4l2_buf_type type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
|
|
int radio = 0;
|
|
list_for_each(list,&saa7134_devlist) {
|
|
h = list_entry(list, struct saa7134_dev, devlist);
|
|
if (h->video_dev && (h->video_dev->minor == minor))
|
|
dev = h;
|
|
if (h->radio_dev && (h->radio_dev->minor == minor)) {
|
|
radio = 1;
|
|
dev = h;
|
|
}
|
|
if (h->vbi_dev && (h->vbi_dev->minor == minor)) {
|
|
type = V4L2_BUF_TYPE_VBI_CAPTURE;
|
|
dev = h;
|
|
}
|
|
}
|
|
if (NULL == dev)
|
|
return -ENODEV;
|
|
|
|
dprintk("open minor=%d radio=%d type=%s\n",minor,radio,
|
|
v4l2_type_names[type]);
|
|
|
|
/* allocate + initialize per filehandle data */
|
|
fh = kzalloc(sizeof(*fh),GFP_KERNEL);
|
|
if (NULL == fh)
|
|
return -ENOMEM;
|
|
file->private_data = fh;
|
|
fh->dev = dev;
|
|
fh->radio = radio;
|
|
fh->type = type;
|
|
fh->fmt = format_by_fourcc(V4L2_PIX_FMT_BGR24);
|
|
fh->width = 720;
|
|
fh->height = 576;
|
|
v4l2_prio_open(&dev->prio,&fh->prio);
|
|
|
|
videobuf_queue_init(&fh->cap, &video_qops,
|
|
dev->pci, &dev->slock,
|
|
V4L2_BUF_TYPE_VIDEO_CAPTURE,
|
|
V4L2_FIELD_INTERLACED,
|
|
sizeof(struct saa7134_buf),
|
|
fh);
|
|
videobuf_queue_init(&fh->vbi, &saa7134_vbi_qops,
|
|
dev->pci, &dev->slock,
|
|
V4L2_BUF_TYPE_VBI_CAPTURE,
|
|
V4L2_FIELD_SEQ_TB,
|
|
sizeof(struct saa7134_buf),
|
|
fh);
|
|
saa7134_pgtable_alloc(dev->pci,&fh->pt_cap);
|
|
saa7134_pgtable_alloc(dev->pci,&fh->pt_vbi);
|
|
|
|
if (fh->radio) {
|
|
/* switch to radio mode */
|
|
saa7134_tvaudio_setinput(dev,&card(dev).radio);
|
|
saa7134_i2c_call_clients(dev,AUDC_SET_RADIO, NULL);
|
|
} else {
|
|
/* switch to video/vbi mode */
|
|
video_mux(dev,dev->ctl_input);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static ssize_t
|
|
video_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
|
|
{
|
|
struct saa7134_fh *fh = file->private_data;
|
|
|
|
switch (fh->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
if (res_locked(fh->dev,RESOURCE_VIDEO))
|
|
return -EBUSY;
|
|
return videobuf_read_one(saa7134_queue(fh),
|
|
data, count, ppos,
|
|
file->f_flags & O_NONBLOCK);
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
|
if (!res_get(fh->dev,fh,RESOURCE_VBI))
|
|
return -EBUSY;
|
|
return videobuf_read_stream(saa7134_queue(fh),
|
|
data, count, ppos, 1,
|
|
file->f_flags & O_NONBLOCK);
|
|
break;
|
|
default:
|
|
BUG();
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
static unsigned int
|
|
video_poll(struct file *file, struct poll_table_struct *wait)
|
|
{
|
|
struct saa7134_fh *fh = file->private_data;
|
|
struct videobuf_buffer *buf = NULL;
|
|
|
|
if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type)
|
|
return videobuf_poll_stream(file, &fh->vbi, wait);
|
|
|
|
if (res_check(fh,RESOURCE_VIDEO)) {
|
|
if (!list_empty(&fh->cap.stream))
|
|
buf = list_entry(fh->cap.stream.next, struct videobuf_buffer, stream);
|
|
} else {
|
|
down(&fh->cap.lock);
|
|
if (UNSET == fh->cap.read_off) {
|
|
/* need to capture a new frame */
|
|
if (res_locked(fh->dev,RESOURCE_VIDEO)) {
|
|
up(&fh->cap.lock);
|
|
return POLLERR;
|
|
}
|
|
if (0 != fh->cap.ops->buf_prepare(&fh->cap,fh->cap.read_buf,fh->cap.field)) {
|
|
up(&fh->cap.lock);
|
|
return POLLERR;
|
|
}
|
|
fh->cap.ops->buf_queue(&fh->cap,fh->cap.read_buf);
|
|
fh->cap.read_off = 0;
|
|
}
|
|
up(&fh->cap.lock);
|
|
buf = fh->cap.read_buf;
|
|
}
|
|
|
|
if (!buf)
|
|
return POLLERR;
|
|
|
|
poll_wait(file, &buf->done, wait);
|
|
if (buf->state == STATE_DONE ||
|
|
buf->state == STATE_ERROR)
|
|
return POLLIN|POLLRDNORM;
|
|
return 0;
|
|
}
|
|
|
|
static int video_release(struct inode *inode, struct file *file)
|
|
{
|
|
struct saa7134_fh *fh = file->private_data;
|
|
struct saa7134_dev *dev = fh->dev;
|
|
unsigned long flags;
|
|
|
|
/* turn off overlay */
|
|
if (res_check(fh, RESOURCE_OVERLAY)) {
|
|
spin_lock_irqsave(&dev->slock,flags);
|
|
stop_preview(dev,fh);
|
|
spin_unlock_irqrestore(&dev->slock,flags);
|
|
res_free(dev,fh,RESOURCE_OVERLAY);
|
|
}
|
|
|
|
/* stop video capture */
|
|
if (res_check(fh, RESOURCE_VIDEO)) {
|
|
videobuf_streamoff(&fh->cap);
|
|
res_free(dev,fh,RESOURCE_VIDEO);
|
|
}
|
|
if (fh->cap.read_buf) {
|
|
buffer_release(&fh->cap,fh->cap.read_buf);
|
|
kfree(fh->cap.read_buf);
|
|
}
|
|
|
|
/* stop vbi capture */
|
|
if (res_check(fh, RESOURCE_VBI)) {
|
|
if (fh->vbi.streaming)
|
|
videobuf_streamoff(&fh->vbi);
|
|
if (fh->vbi.reading)
|
|
videobuf_read_stop(&fh->vbi);
|
|
res_free(dev,fh,RESOURCE_VBI);
|
|
}
|
|
|
|
/* ts-capture will not work in planar mode, so turn it off Hac: 04.05*/
|
|
saa_andorb(SAA7134_OFMT_VIDEO_A, 0x1f, 0);
|
|
saa_andorb(SAA7134_OFMT_VIDEO_B, 0x1f, 0);
|
|
saa_andorb(SAA7134_OFMT_DATA_A, 0x1f, 0);
|
|
saa_andorb(SAA7134_OFMT_DATA_B, 0x1f, 0);
|
|
|
|
saa7134_i2c_call_clients(dev, TUNER_SET_STANDBY, NULL);
|
|
|
|
/* free stuff */
|
|
videobuf_mmap_free(&fh->cap);
|
|
videobuf_mmap_free(&fh->vbi);
|
|
saa7134_pgtable_free(dev->pci,&fh->pt_cap);
|
|
saa7134_pgtable_free(dev->pci,&fh->pt_vbi);
|
|
|
|
v4l2_prio_close(&dev->prio,&fh->prio);
|
|
file->private_data = NULL;
|
|
kfree(fh);
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
video_mmap(struct file *file, struct vm_area_struct * vma)
|
|
{
|
|
struct saa7134_fh *fh = file->private_data;
|
|
|
|
return videobuf_mmap_mapper(saa7134_queue(fh), vma);
|
|
}
|
|
|
|
/* ------------------------------------------------------------------ */
|
|
|
|
static void saa7134_vbi_fmt(struct saa7134_dev *dev, struct v4l2_format *f)
|
|
{
|
|
struct saa7134_tvnorm *norm = dev->tvnorm;
|
|
|
|
f->fmt.vbi.sampling_rate = 6750000 * 4;
|
|
f->fmt.vbi.samples_per_line = 2048 /* VBI_LINE_LENGTH */;
|
|
f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
|
|
f->fmt.vbi.offset = 64 * 4;
|
|
f->fmt.vbi.start[0] = norm->vbi_v_start_0;
|
|
f->fmt.vbi.count[0] = norm->vbi_v_stop_0 - norm->vbi_v_start_0 +1;
|
|
f->fmt.vbi.start[1] = norm->vbi_v_start_1;
|
|
f->fmt.vbi.count[1] = f->fmt.vbi.count[0];
|
|
f->fmt.vbi.flags = 0; /* VBI_UNSYNC VBI_INTERLACED */
|
|
|
|
}
|
|
|
|
static int saa7134_g_fmt(struct saa7134_dev *dev, struct saa7134_fh *fh,
|
|
struct v4l2_format *f)
|
|
{
|
|
switch (f->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
memset(&f->fmt.pix,0,sizeof(f->fmt.pix));
|
|
f->fmt.pix.width = fh->width;
|
|
f->fmt.pix.height = fh->height;
|
|
f->fmt.pix.field = fh->cap.field;
|
|
f->fmt.pix.pixelformat = fh->fmt->fourcc;
|
|
f->fmt.pix.bytesperline =
|
|
(f->fmt.pix.width * fh->fmt->depth) >> 3;
|
|
f->fmt.pix.sizeimage =
|
|
f->fmt.pix.height * f->fmt.pix.bytesperline;
|
|
return 0;
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
f->fmt.win = fh->win;
|
|
return 0;
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
|
saa7134_vbi_fmt(dev,f);
|
|
return 0;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static int saa7134_try_fmt(struct saa7134_dev *dev, struct saa7134_fh *fh,
|
|
struct v4l2_format *f)
|
|
{
|
|
int err;
|
|
|
|
switch (f->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
{
|
|
struct saa7134_format *fmt;
|
|
enum v4l2_field field;
|
|
unsigned int maxw, maxh;
|
|
|
|
fmt = format_by_fourcc(f->fmt.pix.pixelformat);
|
|
if (NULL == fmt)
|
|
return -EINVAL;
|
|
|
|
field = f->fmt.pix.field;
|
|
maxw = min(dev->crop_current.width*4, dev->crop_bounds.width);
|
|
maxh = min(dev->crop_current.height*4, dev->crop_bounds.height);
|
|
|
|
if (V4L2_FIELD_ANY == field) {
|
|
field = (f->fmt.pix.height > maxh/2)
|
|
? V4L2_FIELD_INTERLACED
|
|
: V4L2_FIELD_BOTTOM;
|
|
}
|
|
switch (field) {
|
|
case V4L2_FIELD_TOP:
|
|
case V4L2_FIELD_BOTTOM:
|
|
maxh = maxh / 2;
|
|
break;
|
|
case V4L2_FIELD_INTERLACED:
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
|
|
f->fmt.pix.field = field;
|
|
if (f->fmt.pix.width < 48)
|
|
f->fmt.pix.width = 48;
|
|
if (f->fmt.pix.height < 32)
|
|
f->fmt.pix.height = 32;
|
|
if (f->fmt.pix.width > maxw)
|
|
f->fmt.pix.width = maxw;
|
|
if (f->fmt.pix.height > maxh)
|
|
f->fmt.pix.height = maxh;
|
|
f->fmt.pix.width &= ~0x03;
|
|
f->fmt.pix.bytesperline =
|
|
(f->fmt.pix.width * fmt->depth) >> 3;
|
|
f->fmt.pix.sizeimage =
|
|
f->fmt.pix.height * f->fmt.pix.bytesperline;
|
|
|
|
return 0;
|
|
}
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
err = verify_preview(dev,&f->fmt.win);
|
|
if (0 != err)
|
|
return err;
|
|
return 0;
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
|
saa7134_vbi_fmt(dev,f);
|
|
return 0;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
static int saa7134_s_fmt(struct saa7134_dev *dev, struct saa7134_fh *fh,
|
|
struct v4l2_format *f)
|
|
{
|
|
unsigned long flags;
|
|
int err;
|
|
|
|
switch (f->type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
err = saa7134_try_fmt(dev,fh,f);
|
|
if (0 != err)
|
|
return err;
|
|
|
|
fh->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
|
|
fh->width = f->fmt.pix.width;
|
|
fh->height = f->fmt.pix.height;
|
|
fh->cap.field = f->fmt.pix.field;
|
|
return 0;
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
err = verify_preview(dev,&f->fmt.win);
|
|
if (0 != err)
|
|
return err;
|
|
|
|
down(&dev->lock);
|
|
fh->win = f->fmt.win;
|
|
fh->nclips = f->fmt.win.clipcount;
|
|
if (fh->nclips > 8)
|
|
fh->nclips = 8;
|
|
if (copy_from_user(fh->clips,f->fmt.win.clips,
|
|
sizeof(struct v4l2_clip)*fh->nclips)) {
|
|
up(&dev->lock);
|
|
return -EFAULT;
|
|
}
|
|
|
|
if (res_check(fh, RESOURCE_OVERLAY)) {
|
|
spin_lock_irqsave(&dev->slock,flags);
|
|
stop_preview(dev,fh);
|
|
start_preview(dev,fh);
|
|
spin_unlock_irqrestore(&dev->slock,flags);
|
|
}
|
|
up(&dev->lock);
|
|
return 0;
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
|
saa7134_vbi_fmt(dev,f);
|
|
return 0;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
int saa7134_common_ioctl(struct saa7134_dev *dev,
|
|
unsigned int cmd, void *arg)
|
|
{
|
|
int err;
|
|
|
|
switch (cmd) {
|
|
case VIDIOC_QUERYCTRL:
|
|
{
|
|
const struct v4l2_queryctrl *ctrl;
|
|
struct v4l2_queryctrl *c = arg;
|
|
|
|
if ((c->id < V4L2_CID_BASE ||
|
|
c->id >= V4L2_CID_LASTP1) &&
|
|
(c->id < V4L2_CID_PRIVATE_BASE ||
|
|
c->id >= V4L2_CID_PRIVATE_LASTP1))
|
|
return -EINVAL;
|
|
ctrl = ctrl_by_id(c->id);
|
|
*c = (NULL != ctrl) ? *ctrl : no_ctrl;
|
|
return 0;
|
|
}
|
|
case VIDIOC_G_CTRL:
|
|
return get_control(dev,arg);
|
|
case VIDIOC_S_CTRL:
|
|
{
|
|
down(&dev->lock);
|
|
err = set_control(dev,NULL,arg);
|
|
up(&dev->lock);
|
|
return err;
|
|
}
|
|
/* --- input switching --------------------------------------- */
|
|
case VIDIOC_ENUMINPUT:
|
|
{
|
|
struct v4l2_input *i = arg;
|
|
unsigned int n;
|
|
|
|
n = i->index;
|
|
if (n >= SAA7134_INPUT_MAX)
|
|
return -EINVAL;
|
|
if (NULL == card_in(dev,i->index).name)
|
|
return -EINVAL;
|
|
memset(i,0,sizeof(*i));
|
|
i->index = n;
|
|
i->type = V4L2_INPUT_TYPE_CAMERA;
|
|
strcpy(i->name,card_in(dev,n).name);
|
|
if (card_in(dev,n).tv)
|
|
i->type = V4L2_INPUT_TYPE_TUNER;
|
|
i->audioset = 1;
|
|
if (n == dev->ctl_input) {
|
|
int v1 = saa_readb(SAA7134_STATUS_VIDEO1);
|
|
int v2 = saa_readb(SAA7134_STATUS_VIDEO2);
|
|
|
|
if (0 != (v1 & 0x40))
|
|
i->status |= V4L2_IN_ST_NO_H_LOCK;
|
|
if (0 != (v2 & 0x40))
|
|
i->status |= V4L2_IN_ST_NO_SYNC;
|
|
if (0 != (v2 & 0x0e))
|
|
i->status |= V4L2_IN_ST_MACROVISION;
|
|
}
|
|
for (n = 0; n < TVNORMS; n++)
|
|
i->std |= tvnorms[n].id;
|
|
return 0;
|
|
}
|
|
case VIDIOC_G_INPUT:
|
|
{
|
|
int *i = arg;
|
|
*i = dev->ctl_input;
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_INPUT:
|
|
{
|
|
int *i = arg;
|
|
|
|
if (*i < 0 || *i >= SAA7134_INPUT_MAX)
|
|
return -EINVAL;
|
|
if (NULL == card_in(dev,*i).name)
|
|
return -EINVAL;
|
|
down(&dev->lock);
|
|
video_mux(dev,*i);
|
|
up(&dev->lock);
|
|
return 0;
|
|
}
|
|
|
|
}
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL(saa7134_common_ioctl);
|
|
|
|
/*
|
|
* This function is _not_ called directly, but from
|
|
* video_generic_ioctl (and maybe others). userspace
|
|
* copying is done already, arg is a kernel pointer.
|
|
*/
|
|
static int video_do_ioctl(struct inode *inode, struct file *file,
|
|
unsigned int cmd, void *arg)
|
|
{
|
|
struct saa7134_fh *fh = file->private_data;
|
|
struct saa7134_dev *dev = fh->dev;
|
|
unsigned long flags;
|
|
int err;
|
|
|
|
if (video_debug > 1)
|
|
v4l_print_ioctl(dev->name,cmd);
|
|
|
|
switch (cmd) {
|
|
case VIDIOC_S_CTRL:
|
|
case VIDIOC_S_STD:
|
|
case VIDIOC_S_INPUT:
|
|
case VIDIOC_S_TUNER:
|
|
case VIDIOC_S_FREQUENCY:
|
|
err = v4l2_prio_check(&dev->prio,&fh->prio);
|
|
if (0 != err)
|
|
return err;
|
|
}
|
|
|
|
switch (cmd) {
|
|
case VIDIOC_QUERYCAP:
|
|
{
|
|
struct v4l2_capability *cap = arg;
|
|
unsigned int tuner_type = dev->tuner_type;
|
|
|
|
memset(cap,0,sizeof(*cap));
|
|
strcpy(cap->driver, "saa7134");
|
|
strlcpy(cap->card, saa7134_boards[dev->board].name,
|
|
sizeof(cap->card));
|
|
sprintf(cap->bus_info,"PCI:%s",pci_name(dev->pci));
|
|
cap->version = SAA7134_VERSION_CODE;
|
|
cap->capabilities =
|
|
V4L2_CAP_VIDEO_CAPTURE |
|
|
V4L2_CAP_VIDEO_OVERLAY |
|
|
V4L2_CAP_VBI_CAPTURE |
|
|
V4L2_CAP_READWRITE |
|
|
V4L2_CAP_STREAMING |
|
|
V4L2_CAP_TUNER;
|
|
|
|
if ((tuner_type == TUNER_ABSENT) || (tuner_type == UNSET))
|
|
cap->capabilities &= ~V4L2_CAP_TUNER;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* --- tv standards ------------------------------------------ */
|
|
case VIDIOC_ENUMSTD:
|
|
{
|
|
struct v4l2_standard *e = arg;
|
|
unsigned int i;
|
|
|
|
i = e->index;
|
|
if (i >= TVNORMS)
|
|
return -EINVAL;
|
|
err = v4l2_video_std_construct(e, tvnorms[e->index].id,
|
|
tvnorms[e->index].name);
|
|
e->index = i;
|
|
if (err < 0)
|
|
return err;
|
|
return 0;
|
|
}
|
|
case VIDIOC_G_STD:
|
|
{
|
|
v4l2_std_id *id = arg;
|
|
|
|
*id = dev->tvnorm->id;
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_STD:
|
|
{
|
|
v4l2_std_id *id = arg;
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < TVNORMS; i++)
|
|
if (*id == tvnorms[i].id)
|
|
break;
|
|
if (i == TVNORMS)
|
|
for (i = 0; i < TVNORMS; i++)
|
|
if (*id & tvnorms[i].id)
|
|
break;
|
|
if (i == TVNORMS)
|
|
return -EINVAL;
|
|
|
|
down(&dev->lock);
|
|
if (res_check(fh, RESOURCE_OVERLAY)) {
|
|
spin_lock_irqsave(&dev->slock,flags);
|
|
stop_preview(dev,fh);
|
|
set_tvnorm(dev,&tvnorms[i]);
|
|
start_preview(dev,fh);
|
|
spin_unlock_irqrestore(&dev->slock,flags);
|
|
} else
|
|
set_tvnorm(dev,&tvnorms[i]);
|
|
saa7134_tvaudio_do_scan(dev);
|
|
up(&dev->lock);
|
|
return 0;
|
|
}
|
|
|
|
case VIDIOC_CROPCAP:
|
|
{
|
|
struct v4l2_cropcap *cap = arg;
|
|
|
|
if (cap->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
|
|
cap->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
|
|
return -EINVAL;
|
|
cap->bounds = dev->crop_bounds;
|
|
cap->defrect = dev->crop_defrect;
|
|
cap->pixelaspect.numerator = 1;
|
|
cap->pixelaspect.denominator = 1;
|
|
if (dev->tvnorm->id & V4L2_STD_525_60) {
|
|
cap->pixelaspect.numerator = 11;
|
|
cap->pixelaspect.denominator = 10;
|
|
}
|
|
if (dev->tvnorm->id & V4L2_STD_625_50) {
|
|
cap->pixelaspect.numerator = 54;
|
|
cap->pixelaspect.denominator = 59;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
case VIDIOC_G_CROP:
|
|
{
|
|
struct v4l2_crop * crop = arg;
|
|
|
|
if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
|
|
crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
|
|
return -EINVAL;
|
|
crop->c = dev->crop_current;
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_CROP:
|
|
{
|
|
struct v4l2_crop *crop = arg;
|
|
struct v4l2_rect *b = &dev->crop_bounds;
|
|
|
|
if (crop->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
|
|
crop->type != V4L2_BUF_TYPE_VIDEO_OVERLAY)
|
|
return -EINVAL;
|
|
if (crop->c.height < 0)
|
|
return -EINVAL;
|
|
if (crop->c.width < 0)
|
|
return -EINVAL;
|
|
|
|
if (res_locked(fh->dev,RESOURCE_OVERLAY))
|
|
return -EBUSY;
|
|
if (res_locked(fh->dev,RESOURCE_VIDEO))
|
|
return -EBUSY;
|
|
|
|
if (crop->c.top < b->top)
|
|
crop->c.top = b->top;
|
|
if (crop->c.top > b->top + b->height)
|
|
crop->c.top = b->top + b->height;
|
|
if (crop->c.height > b->top - crop->c.top + b->height)
|
|
crop->c.height = b->top - crop->c.top + b->height;
|
|
|
|
if (crop->c.left < b->left)
|
|
crop->c.left = b->left;
|
|
if (crop->c.left > b->left + b->width)
|
|
crop->c.left = b->left + b->width;
|
|
if (crop->c.width > b->left - crop->c.left + b->width)
|
|
crop->c.width = b->left - crop->c.left + b->width;
|
|
|
|
dev->crop_current = crop->c;
|
|
return 0;
|
|
}
|
|
|
|
/* --- tuner ioctls ------------------------------------------ */
|
|
case VIDIOC_G_TUNER:
|
|
{
|
|
struct v4l2_tuner *t = arg;
|
|
int n;
|
|
|
|
if (0 != t->index)
|
|
return -EINVAL;
|
|
memset(t,0,sizeof(*t));
|
|
for (n = 0; n < SAA7134_INPUT_MAX; n++)
|
|
if (card_in(dev,n).tv)
|
|
break;
|
|
if (NULL != card_in(dev,n).name) {
|
|
strcpy(t->name, "Television");
|
|
t->type = V4L2_TUNER_ANALOG_TV;
|
|
t->capability = V4L2_TUNER_CAP_NORM |
|
|
V4L2_TUNER_CAP_STEREO |
|
|
V4L2_TUNER_CAP_LANG1 |
|
|
V4L2_TUNER_CAP_LANG2;
|
|
t->rangehigh = 0xffffffffUL;
|
|
t->rxsubchans = saa7134_tvaudio_getstereo(dev);
|
|
t->audmode = saa7134_tvaudio_rx2mode(t->rxsubchans);
|
|
}
|
|
if (0 != (saa_readb(SAA7134_STATUS_VIDEO1) & 0x03))
|
|
t->signal = 0xffff;
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_TUNER:
|
|
{
|
|
struct v4l2_tuner *t = arg;
|
|
int rx,mode;
|
|
|
|
mode = dev->thread.mode;
|
|
if (UNSET == mode) {
|
|
rx = saa7134_tvaudio_getstereo(dev);
|
|
mode = saa7134_tvaudio_rx2mode(t->rxsubchans);
|
|
}
|
|
if (mode != t->audmode) {
|
|
dev->thread.mode = t->audmode;
|
|
}
|
|
return 0;
|
|
}
|
|
case VIDIOC_G_FREQUENCY:
|
|
{
|
|
struct v4l2_frequency *f = arg;
|
|
|
|
memset(f,0,sizeof(*f));
|
|
f->type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
|
|
f->frequency = dev->ctl_freq;
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_FREQUENCY:
|
|
{
|
|
struct v4l2_frequency *f = arg;
|
|
|
|
if (0 != f->tuner)
|
|
return -EINVAL;
|
|
if (0 == fh->radio && V4L2_TUNER_ANALOG_TV != f->type)
|
|
return -EINVAL;
|
|
if (1 == fh->radio && V4L2_TUNER_RADIO != f->type)
|
|
return -EINVAL;
|
|
down(&dev->lock);
|
|
dev->ctl_freq = f->frequency;
|
|
|
|
saa7134_i2c_call_clients(dev,VIDIOC_S_FREQUENCY,f);
|
|
|
|
saa7134_tvaudio_do_scan(dev);
|
|
up(&dev->lock);
|
|
return 0;
|
|
}
|
|
|
|
/* --- control ioctls ---------------------------------------- */
|
|
case VIDIOC_ENUMINPUT:
|
|
case VIDIOC_G_INPUT:
|
|
case VIDIOC_S_INPUT:
|
|
case VIDIOC_QUERYCTRL:
|
|
case VIDIOC_G_CTRL:
|
|
case VIDIOC_S_CTRL:
|
|
return saa7134_common_ioctl(dev, cmd, arg);
|
|
|
|
case VIDIOC_G_AUDIO:
|
|
{
|
|
struct v4l2_audio *a = arg;
|
|
|
|
memset(a,0,sizeof(*a));
|
|
strcpy(a->name,"audio");
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_AUDIO:
|
|
return 0;
|
|
case VIDIOC_G_PARM:
|
|
{
|
|
struct v4l2_captureparm *parm = arg;
|
|
memset(parm,0,sizeof(*parm));
|
|
return 0;
|
|
}
|
|
|
|
case VIDIOC_G_PRIORITY:
|
|
{
|
|
enum v4l2_priority *p = arg;
|
|
|
|
*p = v4l2_prio_max(&dev->prio);
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_PRIORITY:
|
|
{
|
|
enum v4l2_priority *prio = arg;
|
|
|
|
return v4l2_prio_change(&dev->prio, &fh->prio, *prio);
|
|
}
|
|
|
|
/* --- preview ioctls ---------------------------------------- */
|
|
case VIDIOC_ENUM_FMT:
|
|
{
|
|
struct v4l2_fmtdesc *f = arg;
|
|
enum v4l2_buf_type type;
|
|
unsigned int index;
|
|
|
|
index = f->index;
|
|
type = f->type;
|
|
switch (type) {
|
|
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
|
|
case V4L2_BUF_TYPE_VIDEO_OVERLAY:
|
|
if (index >= FORMATS)
|
|
return -EINVAL;
|
|
if (f->type == V4L2_BUF_TYPE_VIDEO_OVERLAY &&
|
|
formats[index].planar)
|
|
return -EINVAL;
|
|
memset(f,0,sizeof(*f));
|
|
f->index = index;
|
|
f->type = type;
|
|
strlcpy(f->description,formats[index].name,sizeof(f->description));
|
|
f->pixelformat = formats[index].fourcc;
|
|
break;
|
|
case V4L2_BUF_TYPE_VBI_CAPTURE:
|
|
if (0 != index)
|
|
return -EINVAL;
|
|
memset(f,0,sizeof(*f));
|
|
f->index = index;
|
|
f->type = type;
|
|
f->pixelformat = V4L2_PIX_FMT_GREY;
|
|
strcpy(f->description,"vbi data");
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
}
|
|
return 0;
|
|
}
|
|
case VIDIOC_G_FBUF:
|
|
{
|
|
struct v4l2_framebuffer *fb = arg;
|
|
|
|
*fb = dev->ovbuf;
|
|
fb->capability = V4L2_FBUF_CAP_LIST_CLIPPING;
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_FBUF:
|
|
{
|
|
struct v4l2_framebuffer *fb = arg;
|
|
struct saa7134_format *fmt;
|
|
|
|
if(!capable(CAP_SYS_ADMIN) &&
|
|
!capable(CAP_SYS_RAWIO))
|
|
return -EPERM;
|
|
|
|
/* check args */
|
|
fmt = format_by_fourcc(fb->fmt.pixelformat);
|
|
if (NULL == fmt)
|
|
return -EINVAL;
|
|
|
|
/* ok, accept it */
|
|
dev->ovbuf = *fb;
|
|
dev->ovfmt = fmt;
|
|
if (0 == dev->ovbuf.fmt.bytesperline)
|
|
dev->ovbuf.fmt.bytesperline =
|
|
dev->ovbuf.fmt.width*fmt->depth/8;
|
|
return 0;
|
|
}
|
|
case VIDIOC_OVERLAY:
|
|
{
|
|
int *on = arg;
|
|
|
|
if (*on) {
|
|
if (!res_get(dev,fh,RESOURCE_OVERLAY))
|
|
return -EBUSY;
|
|
spin_lock_irqsave(&dev->slock,flags);
|
|
start_preview(dev,fh);
|
|
spin_unlock_irqrestore(&dev->slock,flags);
|
|
}
|
|
if (!*on) {
|
|
if (!res_check(fh, RESOURCE_OVERLAY))
|
|
return -EINVAL;
|
|
spin_lock_irqsave(&dev->slock,flags);
|
|
stop_preview(dev,fh);
|
|
spin_unlock_irqrestore(&dev->slock,flags);
|
|
res_free(dev,fh,RESOURCE_OVERLAY);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* --- capture ioctls ---------------------------------------- */
|
|
case VIDIOC_G_FMT:
|
|
{
|
|
struct v4l2_format *f = arg;
|
|
return saa7134_g_fmt(dev,fh,f);
|
|
}
|
|
case VIDIOC_S_FMT:
|
|
{
|
|
struct v4l2_format *f = arg;
|
|
return saa7134_s_fmt(dev,fh,f);
|
|
}
|
|
case VIDIOC_TRY_FMT:
|
|
{
|
|
struct v4l2_format *f = arg;
|
|
return saa7134_try_fmt(dev,fh,f);
|
|
}
|
|
#ifdef HAVE_V4L1
|
|
case VIDIOCGMBUF:
|
|
{
|
|
struct video_mbuf *mbuf = arg;
|
|
struct videobuf_queue *q;
|
|
struct v4l2_requestbuffers req;
|
|
unsigned int i;
|
|
|
|
q = saa7134_queue(fh);
|
|
memset(&req,0,sizeof(req));
|
|
req.type = q->type;
|
|
req.count = gbuffers;
|
|
req.memory = V4L2_MEMORY_MMAP;
|
|
err = videobuf_reqbufs(q,&req);
|
|
if (err < 0)
|
|
return err;
|
|
memset(mbuf,0,sizeof(*mbuf));
|
|
mbuf->frames = req.count;
|
|
mbuf->size = 0;
|
|
for (i = 0; i < mbuf->frames; i++) {
|
|
mbuf->offsets[i] = q->bufs[i]->boff;
|
|
mbuf->size += q->bufs[i]->bsize;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
case VIDIOC_REQBUFS:
|
|
return videobuf_reqbufs(saa7134_queue(fh),arg);
|
|
|
|
case VIDIOC_QUERYBUF:
|
|
return videobuf_querybuf(saa7134_queue(fh),arg);
|
|
|
|
case VIDIOC_QBUF:
|
|
return videobuf_qbuf(saa7134_queue(fh),arg);
|
|
|
|
case VIDIOC_DQBUF:
|
|
return videobuf_dqbuf(saa7134_queue(fh),arg,
|
|
file->f_flags & O_NONBLOCK);
|
|
|
|
case VIDIOC_STREAMON:
|
|
{
|
|
int res = saa7134_resource(fh);
|
|
|
|
if (!res_get(dev,fh,res))
|
|
return -EBUSY;
|
|
return videobuf_streamon(saa7134_queue(fh));
|
|
}
|
|
case VIDIOC_STREAMOFF:
|
|
{
|
|
int res = saa7134_resource(fh);
|
|
|
|
err = videobuf_streamoff(saa7134_queue(fh));
|
|
if (err < 0)
|
|
return err;
|
|
res_free(dev,fh,res);
|
|
return 0;
|
|
}
|
|
|
|
default:
|
|
return v4l_compat_translate_ioctl(inode,file,cmd,arg,
|
|
video_do_ioctl);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int video_ioctl(struct inode *inode, struct file *file,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
return video_usercopy(inode, file, cmd, arg, video_do_ioctl);
|
|
}
|
|
|
|
static int radio_do_ioctl(struct inode *inode, struct file *file,
|
|
unsigned int cmd, void *arg)
|
|
{
|
|
struct saa7134_fh *fh = file->private_data;
|
|
struct saa7134_dev *dev = fh->dev;
|
|
|
|
if (video_debug > 1)
|
|
v4l_print_ioctl(dev->name,cmd);
|
|
switch (cmd) {
|
|
case VIDIOC_QUERYCAP:
|
|
{
|
|
struct v4l2_capability *cap = arg;
|
|
|
|
memset(cap,0,sizeof(*cap));
|
|
strcpy(cap->driver, "saa7134");
|
|
strlcpy(cap->card, saa7134_boards[dev->board].name,
|
|
sizeof(cap->card));
|
|
sprintf(cap->bus_info,"PCI:%s",pci_name(dev->pci));
|
|
cap->version = SAA7134_VERSION_CODE;
|
|
cap->capabilities = V4L2_CAP_TUNER;
|
|
return 0;
|
|
}
|
|
case VIDIOC_G_TUNER:
|
|
{
|
|
struct v4l2_tuner *t = arg;
|
|
|
|
if (0 != t->index)
|
|
return -EINVAL;
|
|
|
|
memset(t,0,sizeof(*t));
|
|
strcpy(t->name, "Radio");
|
|
t->type = V4L2_TUNER_RADIO;
|
|
|
|
saa7134_i2c_call_clients(dev, VIDIOC_G_TUNER, t);
|
|
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_TUNER:
|
|
{
|
|
struct v4l2_tuner *t = arg;
|
|
|
|
if (0 != t->index)
|
|
return -EINVAL;
|
|
|
|
saa7134_i2c_call_clients(dev,VIDIOC_S_TUNER,t);
|
|
|
|
return 0;
|
|
}
|
|
case VIDIOC_ENUMINPUT:
|
|
{
|
|
struct v4l2_input *i = arg;
|
|
|
|
if (i->index != 0)
|
|
return -EINVAL;
|
|
strcpy(i->name,"Radio");
|
|
i->type = V4L2_INPUT_TYPE_TUNER;
|
|
return 0;
|
|
}
|
|
case VIDIOC_G_INPUT:
|
|
{
|
|
int *i = arg;
|
|
*i = 0;
|
|
return 0;
|
|
}
|
|
case VIDIOC_G_AUDIO:
|
|
{
|
|
struct v4l2_audio *a = arg;
|
|
|
|
memset(a,0,sizeof(*a));
|
|
strcpy(a->name,"Radio");
|
|
return 0;
|
|
}
|
|
case VIDIOC_G_STD:
|
|
{
|
|
v4l2_std_id *id = arg;
|
|
*id = 0;
|
|
return 0;
|
|
}
|
|
case VIDIOC_S_AUDIO:
|
|
case VIDIOC_S_INPUT:
|
|
case VIDIOC_S_STD:
|
|
return 0;
|
|
|
|
case VIDIOC_QUERYCTRL:
|
|
{
|
|
const struct v4l2_queryctrl *ctrl;
|
|
struct v4l2_queryctrl *c = arg;
|
|
|
|
if (c->id < V4L2_CID_BASE ||
|
|
c->id >= V4L2_CID_LASTP1)
|
|
return -EINVAL;
|
|
if (c->id == V4L2_CID_AUDIO_MUTE) {
|
|
ctrl = ctrl_by_id(c->id);
|
|
*c = *ctrl;
|
|
} else
|
|
*c = no_ctrl;
|
|
return 0;
|
|
}
|
|
|
|
case VIDIOC_G_CTRL:
|
|
case VIDIOC_S_CTRL:
|
|
case VIDIOC_G_FREQUENCY:
|
|
case VIDIOC_S_FREQUENCY:
|
|
return video_do_ioctl(inode,file,cmd,arg);
|
|
|
|
default:
|
|
return v4l_compat_translate_ioctl(inode,file,cmd,arg,
|
|
radio_do_ioctl);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
static int radio_ioctl(struct inode *inode, struct file *file,
|
|
unsigned int cmd, unsigned long arg)
|
|
{
|
|
return video_usercopy(inode, file, cmd, arg, radio_do_ioctl);
|
|
}
|
|
|
|
static struct file_operations video_fops =
|
|
{
|
|
.owner = THIS_MODULE,
|
|
.open = video_open,
|
|
.release = video_release,
|
|
.read = video_read,
|
|
.poll = video_poll,
|
|
.mmap = video_mmap,
|
|
.ioctl = video_ioctl,
|
|
.compat_ioctl = v4l_compat_ioctl32,
|
|
.llseek = no_llseek,
|
|
};
|
|
|
|
static struct file_operations radio_fops =
|
|
{
|
|
.owner = THIS_MODULE,
|
|
.open = video_open,
|
|
.release = video_release,
|
|
.ioctl = radio_ioctl,
|
|
.compat_ioctl = v4l_compat_ioctl32,
|
|
.llseek = no_llseek,
|
|
};
|
|
|
|
/* ----------------------------------------------------------- */
|
|
/* exported stuff */
|
|
|
|
struct video_device saa7134_video_template =
|
|
{
|
|
.name = "saa7134-video",
|
|
.type = VID_TYPE_CAPTURE|VID_TYPE_TUNER|VID_TYPE_OVERLAY|
|
|
VID_TYPE_CLIPPING|VID_TYPE_SCALES,
|
|
.hardware = 0,
|
|
.fops = &video_fops,
|
|
.minor = -1,
|
|
};
|
|
|
|
struct video_device saa7134_vbi_template =
|
|
{
|
|
.name = "saa7134-vbi",
|
|
.type = VID_TYPE_TUNER|VID_TYPE_TELETEXT,
|
|
.hardware = 0,
|
|
.fops = &video_fops,
|
|
.minor = -1,
|
|
};
|
|
|
|
struct video_device saa7134_radio_template =
|
|
{
|
|
.name = "saa7134-radio",
|
|
.type = VID_TYPE_TUNER,
|
|
.hardware = 0,
|
|
.fops = &radio_fops,
|
|
.minor = -1,
|
|
};
|
|
|
|
int saa7134_video_init1(struct saa7134_dev *dev)
|
|
{
|
|
/* sanitycheck insmod options */
|
|
if (gbuffers < 2 || gbuffers > VIDEO_MAX_FRAME)
|
|
gbuffers = 2;
|
|
if (gbufsize < 0 || gbufsize > gbufsize_max)
|
|
gbufsize = gbufsize_max;
|
|
gbufsize = (gbufsize + PAGE_SIZE - 1) & PAGE_MASK;
|
|
|
|
/* put some sensible defaults into the data structures ... */
|
|
dev->ctl_bright = ctrl_by_id(V4L2_CID_BRIGHTNESS)->default_value;
|
|
dev->ctl_contrast = ctrl_by_id(V4L2_CID_CONTRAST)->default_value;
|
|
dev->ctl_hue = ctrl_by_id(V4L2_CID_HUE)->default_value;
|
|
dev->ctl_saturation = ctrl_by_id(V4L2_CID_SATURATION)->default_value;
|
|
dev->ctl_volume = ctrl_by_id(V4L2_CID_AUDIO_VOLUME)->default_value;
|
|
dev->ctl_mute = 1; // ctrl_by_id(V4L2_CID_AUDIO_MUTE)->default_value;
|
|
dev->ctl_invert = ctrl_by_id(V4L2_CID_PRIVATE_INVERT)->default_value;
|
|
dev->ctl_automute = ctrl_by_id(V4L2_CID_PRIVATE_AUTOMUTE)->default_value;
|
|
|
|
if (dev->tda9887_conf && dev->ctl_automute)
|
|
dev->tda9887_conf |= TDA9887_AUTOMUTE;
|
|
dev->automute = 0;
|
|
|
|
INIT_LIST_HEAD(&dev->video_q.queue);
|
|
init_timer(&dev->video_q.timeout);
|
|
dev->video_q.timeout.function = saa7134_buffer_timeout;
|
|
dev->video_q.timeout.data = (unsigned long)(&dev->video_q);
|
|
dev->video_q.dev = dev;
|
|
|
|
if (saa7134_boards[dev->board].video_out) {
|
|
/* enable video output */
|
|
int vo = saa7134_boards[dev->board].video_out;
|
|
int video_reg;
|
|
unsigned int vid_port_opts = saa7134_boards[dev->board].vid_port_opts;
|
|
saa_writeb(SAA7134_VIDEO_PORT_CTRL0, video_out[vo][0]);
|
|
video_reg = video_out[vo][1];
|
|
if (vid_port_opts & SET_T_CODE_POLARITY_NON_INVERTED)
|
|
video_reg &= ~VP_T_CODE_P_INVERTED;
|
|
saa_writeb(SAA7134_VIDEO_PORT_CTRL1, video_reg);
|
|
saa_writeb(SAA7134_VIDEO_PORT_CTRL2, video_out[vo][2]);
|
|
saa_writeb(SAA7134_VIDEO_PORT_CTRL3, video_out[vo][3]);
|
|
saa_writeb(SAA7134_VIDEO_PORT_CTRL4, video_out[vo][4]);
|
|
video_reg = video_out[vo][5];
|
|
if (vid_port_opts & SET_CLOCK_NOT_DELAYED)
|
|
video_reg &= ~VP_CLK_CTRL2_DELAYED;
|
|
if (vid_port_opts & SET_CLOCK_INVERTED)
|
|
video_reg |= VP_CLK_CTRL1_INVERTED;
|
|
saa_writeb(SAA7134_VIDEO_PORT_CTRL5, video_reg);
|
|
video_reg = video_out[vo][6];
|
|
if (vid_port_opts & SET_VSYNC_OFF) {
|
|
video_reg &= ~VP_VS_TYPE_MASK;
|
|
video_reg |= VP_VS_TYPE_OFF;
|
|
}
|
|
saa_writeb(SAA7134_VIDEO_PORT_CTRL6, video_reg);
|
|
saa_writeb(SAA7134_VIDEO_PORT_CTRL7, video_out[vo][7]);
|
|
saa_writeb(SAA7134_VIDEO_PORT_CTRL8, video_out[vo][8]);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int saa7134_video_init2(struct saa7134_dev *dev)
|
|
{
|
|
/* init video hw */
|
|
set_tvnorm(dev,&tvnorms[0]);
|
|
video_mux(dev,0);
|
|
saa7134_tvaudio_setmute(dev);
|
|
saa7134_tvaudio_setvolume(dev,dev->ctl_volume);
|
|
return 0;
|
|
}
|
|
|
|
int saa7134_video_fini(struct saa7134_dev *dev)
|
|
{
|
|
/* nothing */
|
|
return 0;
|
|
}
|
|
|
|
void saa7134_irq_video_intl(struct saa7134_dev *dev)
|
|
{
|
|
static const char *st[] = {
|
|
"(no signal)", "NTSC", "PAL", "SECAM" };
|
|
u32 st1,st2;
|
|
|
|
st1 = saa_readb(SAA7134_STATUS_VIDEO1);
|
|
st2 = saa_readb(SAA7134_STATUS_VIDEO2);
|
|
dprintk("DCSDT: pll: %s, sync: %s, norm: %s\n",
|
|
(st1 & 0x40) ? "not locked" : "locked",
|
|
(st2 & 0x40) ? "no" : "yes",
|
|
st[st1 & 0x03]);
|
|
dev->nosignal = (st1 & 0x40) || (st2 & 0x40);
|
|
|
|
if (dev->nosignal) {
|
|
/* no video signal -> mute audio */
|
|
if (dev->ctl_automute)
|
|
dev->automute = 1;
|
|
saa7134_tvaudio_setmute(dev);
|
|
saa_setb(SAA7134_SYNC_CTRL, 0x20);
|
|
} else {
|
|
/* wake up tvaudio audio carrier scan thread */
|
|
saa7134_tvaudio_do_scan(dev);
|
|
if (!noninterlaced)
|
|
saa_clearb(SAA7134_SYNC_CTRL, 0x20);
|
|
}
|
|
if (dev->mops && dev->mops->signal_change)
|
|
dev->mops->signal_change(dev);
|
|
}
|
|
|
|
void saa7134_irq_video_done(struct saa7134_dev *dev, unsigned long status)
|
|
{
|
|
enum v4l2_field field;
|
|
|
|
spin_lock(&dev->slock);
|
|
if (dev->video_q.curr) {
|
|
dev->video_fieldcount++;
|
|
field = dev->video_q.curr->vb.field;
|
|
if (V4L2_FIELD_HAS_BOTH(field)) {
|
|
/* make sure we have seen both fields */
|
|
if ((status & 0x10) == 0x00) {
|
|
dev->video_q.curr->top_seen = 1;
|
|
goto done;
|
|
}
|
|
if (!dev->video_q.curr->top_seen)
|
|
goto done;
|
|
} else if (field == V4L2_FIELD_TOP) {
|
|
if ((status & 0x10) != 0x10)
|
|
goto done;
|
|
} else if (field == V4L2_FIELD_BOTTOM) {
|
|
if ((status & 0x10) != 0x00)
|
|
goto done;
|
|
}
|
|
dev->video_q.curr->vb.field_count = dev->video_fieldcount;
|
|
saa7134_buffer_finish(dev,&dev->video_q,STATE_DONE);
|
|
}
|
|
saa7134_buffer_next(dev,&dev->video_q);
|
|
|
|
done:
|
|
spin_unlock(&dev->slock);
|
|
}
|
|
|
|
/* ----------------------------------------------------------- */
|
|
/*
|
|
* Local variables:
|
|
* c-basic-offset: 8
|
|
* End:
|
|
*/
|