From 99443ae04f7002530f666ba0747f7b1ecafb3002 Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Sun, 3 Feb 2008 23:48:09 -0300 Subject: [PATCH] V4L/DVB (7680): pvrusb2-dvb: add pvr2_dvb_bus_ctrl to allow frontends to negotiate bus access This function is just a skeleton for now - a placeholder to remind us to fix it. Signed-off-by: Michael Krufky Signed-off-by: Mike Isely Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/pvrusb2/pvrusb2-dvb.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/media/video/pvrusb2/pvrusb2-dvb.c b/drivers/media/video/pvrusb2/pvrusb2-dvb.c index 18c18db2fe..250462265a 100644 --- a/drivers/media/video/pvrusb2/pvrusb2-dvb.c +++ b/drivers/media/video/pvrusb2/pvrusb2-dvb.c @@ -39,6 +39,17 @@ static int pvr2_dvb_stop_feed(struct dvb_demux_feed *dvbdmxfeed) return 0; /* FIXME: pvr2_dvb_ctrl_feed(dvbdmxfeed, 0); */ } +static int pvr2_dvb_bus_ctrl(struct dvb_frontend *fe, int acquire) +{ + /* TO DO: This function will call into the core and request for + * input to be set to 'dtv' if (acquire) and if it isn't set already. + * + * If (!acquire) then we should do nothing -- don't switch inputs + * again unless the analog side of the driver requests the bus. + */ + return 0; +} + static int pvr2_dvb_adapter_init(struct pvr2_dvb_adapter *adap) { int ret; @@ -136,6 +147,9 @@ static int pvr2_dvb_frontend_init(struct pvr2_dvb_adapter *adap) if (adap->fe->ops.analog_ops.standby) adap->fe->ops.analog_ops.standby(adap->fe); + /* Ensure all frontends negotiate bus access */ + adap->fe->ops.ts_bus_ctrl = pvr2_dvb_bus_ctrl; + } else { err("no frontend was attached!"); return -ENODEV; -- 2.39.5