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[media] DVB: allow to read back of detected parameters through S2API

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Signed-off-by: Andreas Oberritter <obi@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Andreas Oberritter 2011-05-08 20:03:41 -03:00 committed by Mauro Carvalho Chehab
parent a5959dbea3
commit bbe880b4a7
1 changed files with 15 additions and 4 deletions
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19
drivers/media/dvb/dvb-core/dvb_frontend.c
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@ -1023,10 +1023,9 @@ static int is_legacy_delivery_system(fe_delivery_system_t s)
* it's being used for the legacy or new API, reducing code and complexity.
*/
static void dtv_property_cache_sync(struct dvb_frontend *fe,
struct dvb_frontend_parameters *p)
struct dtv_frontend_properties *c,
const struct dvb_frontend_parameters *p)
{
struct dtv_frontend_properties *c = &fe->dtv_property_cache;
c->frequency = p->frequency;
c->inversion = p->inversion;
@ -1200,8 +1199,20 @@ static int dtv_property_process_get(struct dvb_frontend *fe,
struct file *file)
{
const struct dtv_frontend_properties *c = &fe->dtv_property_cache;
struct dvb_frontend_private *fepriv = fe->frontend_priv;
struct dtv_frontend_properties cdetected;
int r;
/*
* If the driver implements a get_frontend function, then convert
* detected parameters to S2API properties.
*/
if (fe->ops.get_frontend) {
cdetected = *c;
dtv_property_cache_sync(fe, &cdetected, &fepriv->parameters_out);
c = &cdetected;
}
switch(tvp->cmd) {
case DTV_FREQUENCY:
tvp->u.data = c->frequency;
@ -1812,7 +1823,7 @@ static int dvb_frontend_ioctl_legacy(struct file *file,
memcpy (&fepriv->parameters_in, parg,
sizeof (struct dvb_frontend_parameters));
dtv_property_cache_sync(fe, &fepriv->parameters_in);
dtv_property_cache_sync(fe, c, &fepriv->parameters_in);
}
memset(&fetunesettings, 0, sizeof(struct dvb_frontend_tune_settings));