2083 	struct rate_estimator *est;  in idt77252_est_timer()  local
2090 	est = vc->estimator;  in idt77252_est_timer()
2091 	if (!est)  in idt77252_est_timer()
2094 	ncells = est->cells;  in idt77252_est_timer()
2096 	rate = ((u32)(ncells - est->last_cells)) << (7 - est->interval);  in idt77252_est_timer()
2097 	est->last_cells = ncells;  in idt77252_est_timer()
2098 	est->avcps += ((long)rate - (long)est->avcps) >> est->ewma_log;  in idt77252_est_timer()
2099 	est->cps = (est->avcps + 0x1f) >> 5;  in idt77252_est_timer()
2101 	cps = est->cps;  in idt77252_est_timer()
2102 	if (cps < (est->maxcps >> 4))  in idt77252_est_timer()
2103 		cps = est->maxcps >> 4;  in idt77252_est_timer()
2114 	est->timer.expires = jiffies + ((HZ / 4) << est->interval);  in idt77252_est_timer()
2115 	add_timer(&est->timer);  in idt77252_est_timer()
2124 	struct rate_estimator *est;  in idt77252_init_est()  local
2126 	est = kzalloc(sizeof(struct rate_estimator), GFP_KERNEL);  in idt77252_init_est()
2127 	if (!est)  in idt77252_init_est()
2129 	est->maxcps = pcr < 0 ? -pcr : pcr;  in idt77252_init_est()
2130 	est->cps = est->maxcps;  in idt77252_init_est()
2131 	est->avcps = est->cps << 5;  in idt77252_init_est()
2133 	est->interval = 2;		/* XXX: make this configurable */  in idt77252_init_est()
2134 	est->ewma_log = 2;		/* XXX: make this configurable */  in idt77252_init_est()
2135 	init_timer(&est->timer);  in idt77252_init_est()
2136 	est->timer.data = (unsigned long)vc;  in idt77252_init_est()
2137 	est->timer.function = idt77252_est_timer;  in idt77252_init_est()
2139 	est->timer.expires = jiffies + ((HZ / 4) << est->interval);  in idt77252_init_est()
2140 	add_timer(&est->timer);  in idt77252_init_est()
2142 	return est;  in idt77252_init_est()