Following patch adds the functionality to check if the dvb framework is idle or currently processing some commands. The return value of that function is true if fepriv->thread is set and false if not. This might become important for devices which supports video4linux (analogue TV) and digital TV. In case of a firmware reupload for a specific mode one framework has to be idle and should not interfere, this function adds the possibility for checking the current status of the DVB side. Signed-off-by: Markus Rechberger <markus.rechberger@xxxxxxx> http://mcentral.de/~mrec/patches/dvb_frontend_eventstatus.diff diff -r cae47793b091 linux/drivers/media/dvb/dvb-core/dvb_frontend.c --- a/linux/drivers/media/dvb/dvb-core/dvb_frontend.c Tue Aug 07 10:52:55 2007 -0300 +++ b/linux/drivers/media/dvb/dvb-core/dvb_frontend.c Thu Aug 09 13:53:47 2007 +0200 @@ -133,6 +133,25 @@ struct dvb_frontend_private { }; static void dvb_frontend_wakeup(struct dvb_frontend *fe); + +int dvb_frontend_eventstatus(struct dvb_frontend *fe) +{ + struct dvb_frontend_private *fepriv = fe->frontend_priv; + struct dvb_fe_events *events = &fepriv->events; + int ret; + + if (mutex_lock_interruptible (&events->mtx)) + return -EINTR; + + ret = (fepriv->thread) ? true:false; + mutex_unlock (&events->mtx); + + return ret; +} + + + +EXPORT_SYMBOL(dvb_frontend_eventstatus); static void dvb_frontend_add_event(struct dvb_frontend *fe, fe_status_t status) { diff -r cae47793b091 linux/drivers/media/dvb/dvb-core/dvb_frontend.h --- a/linux/drivers/media/dvb/dvb-core/dvb_frontend.h Tue Aug 07 10:52:55 2007 -0300 +++ b/linux/drivers/media/dvb/dvb-core/dvb_frontend.h Thu Aug 09 13:52:26 2007 +0200 @@ -170,6 +170,8 @@ extern void dvb_frontend_detach(struct d extern void dvb_frontend_reinitialise(struct dvb_frontend *fe); +extern int dvb_frontend_eventstatus(struct dvb_frontend *fe); + extern void dvb_frontend_sleep_until(struct timeval *waketime, u32 add_usec); extern s32 timeval_usec_diff(struct timeval lasttime, struct timeval curtime); _______________________________________________ linux-dvb mailing list linux-dvb@xxxxxxxxxxx http://www.linuxtv.org/cgi-bin/mailman/listinfo/linux-dvb
