1 // SPDX-License-Identifier: GPL-2.0-or-later
20  *	28-Jun-1994 sw	Edit v1.6.
21  *			MCA: Added support for the SK-NET FDDI-FM2 adapter. The
33 /* 28-Jun-1994 sw - Note: hwt_restart() is also used in module 'drvfbi.c'. */
40  *	Start hardware timer (clock ticks are 16us).
46  *	smc - A pointer to the SMT Context structure.
48  *	time - The time in units of 16us to load the timer with.
62 	smc->hw.t_start = time ;  in hwt_start()
63 	smc->hw.t_stop = 0L ;  in hwt_start()
67 	 * if time < 16 us  in hwt_start()
68 	 *	time = 16 us  in hwt_start()
76 	smc->hw.timer_activ = TRUE ;  in hwt_start()
88  *	smc - A pointer to the SMT Context structure.
98 	smc->hw.timer_activ = FALSE ;  in hwt_stop()
110  *	smc - A pointer to the SMT Context structure.
117 	smc->hw.t_start = 0 ;  in hwt_init()
118 	smc->hw.t_stop	= 0 ;  in hwt_init()
119 	smc->hw.timer_activ = FALSE ;  in hwt_init()
133  *	smc - A pointer to the SMT Context structure.
151  *	smc - A pointer to the SMT Context structure.
153  *	The elapsed time since last start in units of 16us.
161 	if (smc->hw.timer_activ) {  in hwt_read()
167 		if ((tr > smc->hw.t_start) || (is & IS_TIMINT)) {  in hwt_read()
169 			smc->hw.t_stop = smc->hw.t_start ;  in hwt_read()
172 			smc->hw.t_stop = smc->hw.t_start - tr ;  in hwt_read()
174 	return smc->hw.t_stop;  in hwt_read()
186  *	smc - A pointer to the SMT Context structure.
208  *	hwt_wait_time(smc,start,duration)
214  *	duration	time to wait
219 void hwt_wait_time(struct s_smc *smc, u_long start, long int duration)  in hwt_wait_time()  argument
228 	if (smc->hw.timer_activ == FALSE ||  in hwt_wait_time()
234 	if (interval > duration) {  in hwt_wait_time()
236 			diff = (long)(start - hwt_quick_read(smc)) ;  in hwt_wait_time()
240 		} while (diff <= duration) ;  in hwt_wait_time()
257 		} while (diff <= duration) ;  in hwt_wait_time()