+ return ((curtime.tv_usec < lasttime.tv_usec) ?
+ 1000000 - lasttime.tv_usec + curtime.tv_usec :
+ curtime.tv_usec - lasttime.tv_usec);
+}
+
+static void stv0299_sleep_until (struct timeval *waketime, u32 add_usec)
+{
+ struct timeval lasttime;
+ s32 delta, newdelta;
+
+ waketime->tv_usec += add_usec;
+ if (waketime->tv_usec >= 1000000) {
+ waketime->tv_usec -= 1000000;
+ waketime->tv_sec++;
+ }
+
+ do_gettimeofday (&lasttime);
+ delta = stv0299_calc_usec_delay (lasttime, *waketime);
+ if (delta > 2500) {
+ msleep ((delta - 1500) / 1000);
+ do_gettimeofday (&lasttime);
+ newdelta = stv0299_calc_usec_delay (lasttime, *waketime);
+ delta = (newdelta > delta) ? 0 : newdelta;
+ }
+ if (delta > 0)
+ udelay (delta);
+}
+
+static int stv0299_send_legacy_dish_cmd (struct dvb_frontend* fe, u32 cmd)
+{
+ struct stv0299_state* state = fe->demodulator_priv;
+ u8 reg0x08;
+ u8 reg0x0c;
+ u8 lv_mask = 0x40;