From: Maxim Levitsky Date: Thu, 27 Sep 2007 23:44:39 +0000 (-0300) Subject: V4L/DVB (6272): V4L: properly fix support for capturing interlaced video in saa7134 X-Git-Tag: v2.6.24-rc1~1463^2~33 X-Git-Url: http://pilppa.com/gitweb/?a=commitdiff_plain;h=11f7078c10944437b6cf335cea50ed7da675a8b1;p=linux-2.6-omap-h63xx.git V4L/DVB (6272): V4L: properly fix support for capturing interlaced video in saa7134 By "capturing interlaced video" I mean that card ensures that top field is really top and vice versa (I think it takes the filed ID from signal) Properly turn on/off that support depending on signal state Signed-off-by: Maxim Levitsky Signed-off-by: Mauro Carvalho Chehab --- diff --git a/drivers/media/video/saa7134/saa7134-core.c b/drivers/media/video/saa7134/saa7134-core.c index 7f5df32ed0e..fae0bfe7939 100644 --- a/drivers/media/video/saa7134/saa7134-core.c +++ b/drivers/media/video/saa7134/saa7134-core.c @@ -594,8 +594,10 @@ static irqreturn_t saa7134_irq(int irq, void *dev_id) print_irqstatus(dev,loop,report,status); - if (report & SAA7134_IRQ_REPORT_RDCAP /* _INTL */) - saa7134_irq_video_intl(dev); + if ((report & SAA7134_IRQ_REPORT_RDCAP) || + (report & SAA7134_IRQ_REPORT_INTL)) + saa7134_irq_video_signalchange(dev); + if ((report & SAA7134_IRQ_REPORT_DONE_RA0) && (status & 0x60) == 0) @@ -1081,7 +1083,7 @@ static int __devinit saa7134_initdev(struct pci_dev *pci_dev, mutex_unlock(&devlist_lock); /* check for signal */ - saa7134_irq_video_intl(dev); + saa7134_irq_video_signalchange(dev); if (saa7134_dmasound_init && !dev->dmasound.priv_data) { saa7134_dmasound_init(dev); diff --git a/drivers/media/video/saa7134/saa7134-video.c b/drivers/media/video/saa7134/saa7134-video.c index 24d579723b5..7c97ac15e66 100644 --- a/drivers/media/video/saa7134/saa7134-video.c +++ b/drivers/media/video/saa7134/saa7134-video.c @@ -40,7 +40,7 @@ static unsigned int video_debug = 0; static unsigned int gbuffers = 8; -static unsigned int noninterlaced = 1; +static unsigned int noninterlaced = 0; static unsigned int gbufsize = 720*576*4; static unsigned int gbufsize_max = 720*576*4; static char secam[] = "--"; @@ -2454,7 +2454,7 @@ int saa7134_video_init2(struct saa7134_dev *dev) return 0; } -void saa7134_irq_video_intl(struct saa7134_dev *dev) +void saa7134_irq_video_signalchange(struct saa7134_dev *dev) { static const char *st[] = { "(no signal)", "NTSC", "PAL", "SECAM" }; @@ -2466,24 +2466,28 @@ void saa7134_irq_video_intl(struct saa7134_dev *dev) (st1 & 0x40) ? "not locked" : "locked", (st2 & 0x40) ? "no" : "yes", st[st1 & 0x03]); - dev->nosignal = (st1 & 0x40) || (st2 & 0x40); + dev->nosignal = (st1 & 0x40) || (st2 & 0x40) || !(st2 & 0x1); 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 ((st2 & 0x80) && !noninterlaced && !dev->nosignal) + saa_clearb(SAA7134_SYNC_CTRL, 0x20); + else + saa_setb(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; diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h index 5b1f2260655..745b750cd3f 100644 --- a/drivers/media/video/saa7134/saa7134.h +++ b/drivers/media/video/saa7134/saa7134.h @@ -639,7 +639,7 @@ int saa7134_common_ioctl(struct saa7134_dev *dev, int saa7134_video_init1(struct saa7134_dev *dev); int saa7134_video_init2(struct saa7134_dev *dev); -void saa7134_irq_video_intl(struct saa7134_dev *dev); +void saa7134_irq_video_signalchange(struct saa7134_dev *dev); void saa7134_irq_video_done(struct saa7134_dev *dev, unsigned long status);