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V4L/DVB (7616): em28xx-dvb: Properly selects digital mode at the right place

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The driver should be switched to digital mode, when trying to access the
frontend or when streaming.

This patch provides the correct code to support this feature.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Mauro Carvalho Chehab 2008-04-17 21:49:20 -03:00
parent c67ec53f8f
commit e3569abc1c
1 changed files with 17 additions and 0 deletions
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17
drivers/media/video/em28xx/em28xx-dvb.c
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@ -201,6 +201,18 @@ static int stop_feed(struct dvb_demux_feed *feed)
} }
/* ------------------------------------------------------------------ */
static int em28xx_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire)
{
struct em28xx *dev = fe->dvb->priv;
if (acquire)
return em28xx_set_mode(dev, EM28XX_DIGITAL_MODE);
else
return em28xx_set_mode(dev, EM28XX_MODE_UNDEFINED);
}
/* ------------------------------------------------------------------ */ /* ------------------------------------------------------------------ */
static struct lgdt330x_config em2880_lgdt3303_dev = { static struct lgdt330x_config em2880_lgdt3303_dev = {
@ -268,6 +280,10 @@ int register_dvb(struct em28xx_dvb *dvb,
dev->name, result); dev->name, result);
goto fail_adapter; goto fail_adapter;
} }
/* Ensure all frontends negotiate bus access */
dvb->frontend->ops.ts_bus_ctrl = em28xx_dvb_bus_ctrl;
dvb->adapter.priv = dev; dvb->adapter.priv = dev;
/* register frontend */ /* register frontend */
@ -287,6 +303,7 @@ int register_dvb(struct em28xx_dvb *dvb,
dvb->demux.feednum = 256; dvb->demux.feednum = 256;
dvb->demux.start_feed = start_feed; dvb->demux.start_feed = start_feed;
dvb->demux.stop_feed = stop_feed; dvb->demux.stop_feed = stop_feed;
result = dvb_dmx_init(&dvb->demux); result = dvb_dmx_init(&dvb->demux);
if (result < 0) { if (result < 0) {
printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n", printk(KERN_WARNING "%s: dvb_dmx_init failed (errno = %d)\n",