mirror of
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Update the reprogram timer stuff, now the frequency of timer 0
can only be changed at the "right" times. Accuracy should be assured.
This commit is contained in:
Søren Schmidt
parent
e88064ec8a
commit
bc36c8064b
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=1442
@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)clock.c 7.2 (Berkeley) 5/12/91
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* $Id: clock.c,v 1.7 1994/04/21 14:19:16 sos Exp $
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* $Id: clock.c,v 1.6 1994/02/06 22:48:13 davidg Exp $
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*/
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/*
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@ -59,57 +59,78 @@
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#define TIMER_DIV(x) ((TIMER_FREQ+(x)/2)/(x))
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void hardclock();
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static void findcpuspeed(void);
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static char timer0_in_use = 0, timer2_in_use = 0;
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static int timer0_rate = 100; /* XXX should be hz */
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static void (*timer_func)() = hardclock;
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static unsigned int prescale = 0;
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static unsigned int hardclock_prescale;
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static int beeping;
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unsigned int delaycount; /* calibrated loop variable (1 millisecond) */
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static int beeping;
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int timer0_divisor = TIMER_DIV(100); /* XXX should be hz */
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u_int timer0_prescale;
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static char timer0_state = 0, timer2_state = 0;
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static char timer0_reprogram = 0;
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static void (*timer_func)() = hardclock;
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static void (*new_function)();
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static u_int new_rate;
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static u_int hardclock_divisor;
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void
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timerintr(struct intrframe frame)
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{
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timer_func(frame);
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if (timer0_in_use)
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if (prescale++ >= hardclock_prescale) {
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switch (timer0_state) {
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case 0:
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break;
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case 1:
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if ((timer0_prescale+=timer0_divisor) >= hardclock_divisor) {
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hardclock(frame);
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prescale = 0;
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timer0_prescale = 0;
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}
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break;
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case 2:
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disable_intr();
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outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
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outb(TIMER_CNTR0, TIMER_DIV(new_rate)%256);
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outb(TIMER_CNTR0, TIMER_DIV(new_rate)/256);
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enable_intr();
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timer0_divisor = TIMER_DIV(new_rate);
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timer0_prescale = 0;
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timer_func = new_function;
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timer0_state = 1;
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break;
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case 3:
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if ((timer0_prescale+=timer0_divisor) >= hardclock_divisor) {
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hardclock(frame);
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disable_intr();
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outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
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outb(TIMER_CNTR0, TIMER_DIV(hz)%256);
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outb(TIMER_CNTR0, TIMER_DIV(hz)/256);
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enable_intr();
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timer0_divisor = TIMER_DIV(hz);
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timer0_prescale = 0;
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timer_func = hardclock;;
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timer0_state = 0;
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}
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break;
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}
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}
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int
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acquire_timer0(int rate, void (*function)() )
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{
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#ifndef INACCURATE_MICROTIME_IS_OK
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return -1;
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#else
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if (timer0_in_use) /* XXX || (rate < 20000 && rate % hz)) */
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if (timer0_state || !function)
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return -1;
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timer0_in_use = 1;
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timer0_rate = rate;
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prescale = 0;
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hardclock_prescale = rate/hz;
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outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
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outb(TIMER_CNTR0, TIMER_DIV(rate)%256);
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outb(TIMER_CNTR0, TIMER_DIV(rate)/256);
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if (function)
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timer_func = function;
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new_function = function;
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new_rate = rate;
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timer0_state = 2;
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return 0;
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#endif
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}
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int
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acquire_timer2(int mode)
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{
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if (timer2_in_use)
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if (timer2_state)
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return -1;
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timer2_in_use = 1;
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timer2_state = 1;
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outb(TIMER_MODE, TIMER_SEL2 | (mode &0x3f));
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return 0;
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}
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@ -118,14 +139,9 @@ acquire_timer2(int mode)
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int
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release_timer0()
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{
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if (!timer0_in_use)
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if (!timer0_state)
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return -1;
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timer0_in_use = 0;
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timer0_rate = hz;
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outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
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outb(TIMER_CNTR0, TIMER_DIV(hz)%256);
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outb(TIMER_CNTR0, TIMER_DIV(hz)/256);
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timer_func = hardclock;
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timer0_state = 3;
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return 0;
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}
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@ -133,9 +149,9 @@ release_timer0()
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int
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release_timer2()
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{
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if (!timer2_in_use)
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if (!timer2_state)
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return -1;
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timer2_in_use = 0;
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timer2_state = 0;
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outb(TIMER_MODE, TIMER_SEL2|TIMER_SQWAVE|TIMER_16BIT);
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return 0;
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}
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@ -147,7 +163,6 @@ getit()
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int high, low;
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disable_intr();
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/* select timer0 and latch counter value */
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outb(TIMER_MODE, TIMER_SEL0);
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low = inb(TIMER_CNTR0);
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@ -201,14 +216,13 @@ DELAY(int n)
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+ usec * ((TIMER_FREQ % 1000000) / 1000) / 1000
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+ usec * (TIMER_FREQ % 1000) / 1000000;
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counter_limit = TIMER_FREQ/timer0_rate;
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while (ticks_left > 0) {
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tick = getit(0, 0);
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#ifdef DELAYDEBUG
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++getit_calls;
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#endif
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if (tick > prev_tick)
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ticks_left -= prev_tick - (tick - counter_limit);
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ticks_left -= prev_tick - (tick - timer0_divisor);
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else
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ticks_left -= prev_tick - tick;
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prev_tick = tick;
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@ -222,7 +236,7 @@ DELAY(int n)
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static void
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sysbeepstop() /* SOS XXX dummy is not needed */
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sysbeepstop()
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{
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outb(IO_PPI, inb(IO_PPI)&0xFC); /* disable counter2 output to speaker */
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release_timer2();
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@ -236,8 +250,10 @@ sysbeep(int pitch, int period)
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if (acquire_timer2(TIMER_SQWAVE|TIMER_16BIT))
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return -1;
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disable_intr();
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outb(TIMER_CNTR2, pitch);
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outb(TIMER_CNTR2, (pitch>>8));
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enable_intr();
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if (!beeping) {
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outb(IO_PPI, inb(IO_PPI) | 3); /* enable counter2 output to speaker */
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beeping = period;
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@ -252,15 +268,13 @@ startrtclock()
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{
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int s;
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findcpuspeed(); /* use the clock (while it's free)
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to find the cpu speed */
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/* initialize 8253 clock */
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outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
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/* Correct rounding will buy us a better precision in timekeeping */
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outb (IO_TIMER1, TIMER_DIV(hz)%256);
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outb (IO_TIMER1, TIMER_DIV(hz)/256);
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timer0_rate = hz;
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timer0_divisor = hardclock_divisor = TIMER_DIV(hz);
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/* initialize brain-dead battery powered clock */
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outb (IO_RTC, RTC_STATUSA);
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@ -274,30 +288,6 @@ startrtclock()
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}
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#define FIRST_GUESS 0x2000
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static void
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findcpuspeed()
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{
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unsigned char low;
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unsigned int remainder;
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/* Put counter in count down mode */
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outb(TIMER_MODE, TIMER_16BIT|TIMER_RATEGEN);
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outb(IO_TIMER1, 0xff);
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outb(IO_TIMER1, 0xff);
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delaycount = FIRST_GUESS;
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spinwait(1);
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/* Read the value left in the counter */
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low = inb(IO_TIMER1); /* least siginifcant */
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remainder = inb(IO_TIMER1); /* most significant */
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remainder = (remainder<<8) + low ;
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/* Formula for delaycount is :
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* (loopcount * timer clock speed)/ (counter ticks * 1000)
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*/
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delaycount = (FIRST_GUESS * (TIMER_FREQ/1000)) / (0xffff-remainder);
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}
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/* convert 2 digit BCD number */
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int
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bcd(int i)
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@ -368,7 +358,7 @@ inittodr(time_t base)
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if (sec < 1970)
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sec += 100;
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leap = !(sec % 4); sec = ytos(sec); /* year */
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leap = !(sec % 4); sec = ytos(sec); /* year */
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yd = mtos(bcd(rtcin(RTC_MONTH)),leap); sec+=yd; /* month */
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t = (bcd(rtcin(RTC_DAY))-1) * 24*60*60; sec+=t; yd+=t; /* date */
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day_week = rtcin(RTC_WDAY); /* day */
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@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)clock.c 7.2 (Berkeley) 5/12/91
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* $Id: clock.c,v 1.7 1994/04/21 14:19:16 sos Exp $
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* $Id: clock.c,v 1.6 1994/02/06 22:48:13 davidg Exp $
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*/
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/*
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@ -59,57 +59,78 @@
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#define TIMER_DIV(x) ((TIMER_FREQ+(x)/2)/(x))
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void hardclock();
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static void findcpuspeed(void);
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static char timer0_in_use = 0, timer2_in_use = 0;
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static int timer0_rate = 100; /* XXX should be hz */
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static void (*timer_func)() = hardclock;
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static unsigned int prescale = 0;
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static unsigned int hardclock_prescale;
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static int beeping;
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unsigned int delaycount; /* calibrated loop variable (1 millisecond) */
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static int beeping;
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int timer0_divisor = TIMER_DIV(100); /* XXX should be hz */
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u_int timer0_prescale;
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static char timer0_state = 0, timer2_state = 0;
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static char timer0_reprogram = 0;
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static void (*timer_func)() = hardclock;
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static void (*new_function)();
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static u_int new_rate;
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static u_int hardclock_divisor;
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void
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timerintr(struct intrframe frame)
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{
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timer_func(frame);
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if (timer0_in_use)
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if (prescale++ >= hardclock_prescale) {
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switch (timer0_state) {
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case 0:
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break;
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case 1:
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if ((timer0_prescale+=timer0_divisor) >= hardclock_divisor) {
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hardclock(frame);
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prescale = 0;
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timer0_prescale = 0;
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}
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break;
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case 2:
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disable_intr();
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outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
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outb(TIMER_CNTR0, TIMER_DIV(new_rate)%256);
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outb(TIMER_CNTR0, TIMER_DIV(new_rate)/256);
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enable_intr();
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timer0_divisor = TIMER_DIV(new_rate);
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timer0_prescale = 0;
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timer_func = new_function;
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timer0_state = 1;
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break;
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case 3:
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if ((timer0_prescale+=timer0_divisor) >= hardclock_divisor) {
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hardclock(frame);
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disable_intr();
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outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
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outb(TIMER_CNTR0, TIMER_DIV(hz)%256);
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outb(TIMER_CNTR0, TIMER_DIV(hz)/256);
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enable_intr();
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timer0_divisor = TIMER_DIV(hz);
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timer0_prescale = 0;
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timer_func = hardclock;;
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timer0_state = 0;
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}
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break;
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}
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}
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int
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acquire_timer0(int rate, void (*function)() )
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{
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#ifndef INACCURATE_MICROTIME_IS_OK
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return -1;
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#else
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if (timer0_in_use) /* XXX || (rate < 20000 && rate % hz)) */
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if (timer0_state || !function)
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return -1;
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timer0_in_use = 1;
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timer0_rate = rate;
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prescale = 0;
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hardclock_prescale = rate/hz;
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outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
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outb(TIMER_CNTR0, TIMER_DIV(rate)%256);
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outb(TIMER_CNTR0, TIMER_DIV(rate)/256);
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if (function)
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timer_func = function;
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new_function = function;
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new_rate = rate;
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timer0_state = 2;
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return 0;
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#endif
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}
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int
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acquire_timer2(int mode)
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{
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if (timer2_in_use)
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if (timer2_state)
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return -1;
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timer2_in_use = 1;
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timer2_state = 1;
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outb(TIMER_MODE, TIMER_SEL2 | (mode &0x3f));
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return 0;
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}
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@ -118,14 +139,9 @@ acquire_timer2(int mode)
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int
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release_timer0()
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{
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if (!timer0_in_use)
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if (!timer0_state)
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return -1;
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timer0_in_use = 0;
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timer0_rate = hz;
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outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
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outb(TIMER_CNTR0, TIMER_DIV(hz)%256);
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outb(TIMER_CNTR0, TIMER_DIV(hz)/256);
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timer_func = hardclock;
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timer0_state = 3;
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return 0;
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}
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@ -133,9 +149,9 @@ release_timer0()
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int
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release_timer2()
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{
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if (!timer2_in_use)
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if (!timer2_state)
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return -1;
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timer2_in_use = 0;
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timer2_state = 0;
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outb(TIMER_MODE, TIMER_SEL2|TIMER_SQWAVE|TIMER_16BIT);
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return 0;
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}
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@ -147,7 +163,6 @@ getit()
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int high, low;
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disable_intr();
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/* select timer0 and latch counter value */
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outb(TIMER_MODE, TIMER_SEL0);
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low = inb(TIMER_CNTR0);
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@ -201,14 +216,13 @@ DELAY(int n)
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+ usec * ((TIMER_FREQ % 1000000) / 1000) / 1000
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+ usec * (TIMER_FREQ % 1000) / 1000000;
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counter_limit = TIMER_FREQ/timer0_rate;
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while (ticks_left > 0) {
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tick = getit(0, 0);
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#ifdef DELAYDEBUG
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++getit_calls;
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#endif
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if (tick > prev_tick)
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ticks_left -= prev_tick - (tick - counter_limit);
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ticks_left -= prev_tick - (tick - timer0_divisor);
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else
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ticks_left -= prev_tick - tick;
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prev_tick = tick;
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@ -222,7 +236,7 @@ DELAY(int n)
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static void
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sysbeepstop() /* SOS XXX dummy is not needed */
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sysbeepstop()
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{
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outb(IO_PPI, inb(IO_PPI)&0xFC); /* disable counter2 output to speaker */
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release_timer2();
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@ -236,8 +250,10 @@ sysbeep(int pitch, int period)
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if (acquire_timer2(TIMER_SQWAVE|TIMER_16BIT))
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return -1;
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disable_intr();
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outb(TIMER_CNTR2, pitch);
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outb(TIMER_CNTR2, (pitch>>8));
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enable_intr();
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if (!beeping) {
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outb(IO_PPI, inb(IO_PPI) | 3); /* enable counter2 output to speaker */
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beeping = period;
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@ -252,15 +268,13 @@ startrtclock()
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{
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int s;
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findcpuspeed(); /* use the clock (while it's free)
|
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to find the cpu speed */
|
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/* initialize 8253 clock */
|
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outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
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|
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/* Correct rounding will buy us a better precision in timekeeping */
|
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outb (IO_TIMER1, TIMER_DIV(hz)%256);
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outb (IO_TIMER1, TIMER_DIV(hz)/256);
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timer0_rate = hz;
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timer0_divisor = hardclock_divisor = TIMER_DIV(hz);
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/* initialize brain-dead battery powered clock */
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outb (IO_RTC, RTC_STATUSA);
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@ -274,30 +288,6 @@ startrtclock()
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}
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#define FIRST_GUESS 0x2000
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static void
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findcpuspeed()
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{
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unsigned char low;
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||||
unsigned int remainder;
|
||||
|
||||
/* Put counter in count down mode */
|
||||
outb(TIMER_MODE, TIMER_16BIT|TIMER_RATEGEN);
|
||||
outb(IO_TIMER1, 0xff);
|
||||
outb(IO_TIMER1, 0xff);
|
||||
delaycount = FIRST_GUESS;
|
||||
spinwait(1);
|
||||
/* Read the value left in the counter */
|
||||
low = inb(IO_TIMER1); /* least siginifcant */
|
||||
remainder = inb(IO_TIMER1); /* most significant */
|
||||
remainder = (remainder<<8) + low ;
|
||||
/* Formula for delaycount is :
|
||||
* (loopcount * timer clock speed)/ (counter ticks * 1000)
|
||||
*/
|
||||
delaycount = (FIRST_GUESS * (TIMER_FREQ/1000)) / (0xffff-remainder);
|
||||
}
|
||||
|
||||
|
||||
/* convert 2 digit BCD number */
|
||||
int
|
||||
bcd(int i)
|
||||
@ -368,7 +358,7 @@ inittodr(time_t base)
|
||||
if (sec < 1970)
|
||||
sec += 100;
|
||||
|
||||
leap = !(sec % 4); sec = ytos(sec); /* year */
|
||||
leap = !(sec % 4); sec = ytos(sec); /* year */
|
||||
yd = mtos(bcd(rtcin(RTC_MONTH)),leap); sec+=yd; /* month */
|
||||
t = (bcd(rtcin(RTC_DAY))-1) * 24*60*60; sec+=t; yd+=t; /* date */
|
||||
day_week = rtcin(RTC_WDAY); /* day */
|
||||
|
||||
@ -34,7 +34,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)clock.c 7.2 (Berkeley) 5/12/91
|
||||
* $Id: clock.c,v 1.7 1994/04/21 14:19:16 sos Exp $
|
||||
* $Id: clock.c,v 1.6 1994/02/06 22:48:13 davidg Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -59,57 +59,78 @@
|
||||
#define TIMER_DIV(x) ((TIMER_FREQ+(x)/2)/(x))
|
||||
|
||||
void hardclock();
|
||||
static void findcpuspeed(void);
|
||||
|
||||
static char timer0_in_use = 0, timer2_in_use = 0;
|
||||
static int timer0_rate = 100; /* XXX should be hz */
|
||||
static void (*timer_func)() = hardclock;
|
||||
static unsigned int prescale = 0;
|
||||
static unsigned int hardclock_prescale;
|
||||
static int beeping;
|
||||
unsigned int delaycount; /* calibrated loop variable (1 millisecond) */
|
||||
static int beeping;
|
||||
int timer0_divisor = TIMER_DIV(100); /* XXX should be hz */
|
||||
u_int timer0_prescale;
|
||||
static char timer0_state = 0, timer2_state = 0;
|
||||
static char timer0_reprogram = 0;
|
||||
static void (*timer_func)() = hardclock;
|
||||
static void (*new_function)();
|
||||
static u_int new_rate;
|
||||
static u_int hardclock_divisor;
|
||||
|
||||
|
||||
void
|
||||
timerintr(struct intrframe frame)
|
||||
{
|
||||
timer_func(frame);
|
||||
if (timer0_in_use)
|
||||
if (prescale++ >= hardclock_prescale) {
|
||||
switch (timer0_state) {
|
||||
case 0:
|
||||
break;
|
||||
case 1:
|
||||
if ((timer0_prescale+=timer0_divisor) >= hardclock_divisor) {
|
||||
hardclock(frame);
|
||||
prescale = 0;
|
||||
timer0_prescale = 0;
|
||||
}
|
||||
break;
|
||||
case 2:
|
||||
disable_intr();
|
||||
outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(new_rate)%256);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(new_rate)/256);
|
||||
enable_intr();
|
||||
timer0_divisor = TIMER_DIV(new_rate);
|
||||
timer0_prescale = 0;
|
||||
timer_func = new_function;
|
||||
timer0_state = 1;
|
||||
break;
|
||||
case 3:
|
||||
if ((timer0_prescale+=timer0_divisor) >= hardclock_divisor) {
|
||||
hardclock(frame);
|
||||
disable_intr();
|
||||
outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(hz)%256);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(hz)/256);
|
||||
enable_intr();
|
||||
timer0_divisor = TIMER_DIV(hz);
|
||||
timer0_prescale = 0;
|
||||
timer_func = hardclock;;
|
||||
timer0_state = 0;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
int
|
||||
acquire_timer0(int rate, void (*function)() )
|
||||
{
|
||||
#ifndef INACCURATE_MICROTIME_IS_OK
|
||||
return -1;
|
||||
#else
|
||||
if (timer0_in_use) /* XXX || (rate < 20000 && rate % hz)) */
|
||||
if (timer0_state || !function)
|
||||
return -1;
|
||||
timer0_in_use = 1;
|
||||
timer0_rate = rate;
|
||||
prescale = 0;
|
||||
hardclock_prescale = rate/hz;
|
||||
outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(rate)%256);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(rate)/256);
|
||||
if (function)
|
||||
timer_func = function;
|
||||
|
||||
new_function = function;
|
||||
new_rate = rate;
|
||||
timer0_state = 2;
|
||||
return 0;
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
int
|
||||
acquire_timer2(int mode)
|
||||
{
|
||||
if (timer2_in_use)
|
||||
if (timer2_state)
|
||||
return -1;
|
||||
timer2_in_use = 1;
|
||||
timer2_state = 1;
|
||||
outb(TIMER_MODE, TIMER_SEL2 | (mode &0x3f));
|
||||
return 0;
|
||||
}
|
||||
@ -118,14 +139,9 @@ acquire_timer2(int mode)
|
||||
int
|
||||
release_timer0()
|
||||
{
|
||||
if (!timer0_in_use)
|
||||
if (!timer0_state)
|
||||
return -1;
|
||||
timer0_in_use = 0;
|
||||
timer0_rate = hz;
|
||||
outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(hz)%256);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(hz)/256);
|
||||
timer_func = hardclock;
|
||||
timer0_state = 3;
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -133,9 +149,9 @@ release_timer0()
|
||||
int
|
||||
release_timer2()
|
||||
{
|
||||
if (!timer2_in_use)
|
||||
if (!timer2_state)
|
||||
return -1;
|
||||
timer2_in_use = 0;
|
||||
timer2_state = 0;
|
||||
outb(TIMER_MODE, TIMER_SEL2|TIMER_SQWAVE|TIMER_16BIT);
|
||||
return 0;
|
||||
}
|
||||
@ -147,7 +163,6 @@ getit()
|
||||
int high, low;
|
||||
|
||||
disable_intr();
|
||||
|
||||
/* select timer0 and latch counter value */
|
||||
outb(TIMER_MODE, TIMER_SEL0);
|
||||
low = inb(TIMER_CNTR0);
|
||||
@ -201,14 +216,13 @@ DELAY(int n)
|
||||
+ usec * ((TIMER_FREQ % 1000000) / 1000) / 1000
|
||||
+ usec * (TIMER_FREQ % 1000) / 1000000;
|
||||
|
||||
counter_limit = TIMER_FREQ/timer0_rate;
|
||||
while (ticks_left > 0) {
|
||||
tick = getit(0, 0);
|
||||
#ifdef DELAYDEBUG
|
||||
++getit_calls;
|
||||
#endif
|
||||
if (tick > prev_tick)
|
||||
ticks_left -= prev_tick - (tick - counter_limit);
|
||||
ticks_left -= prev_tick - (tick - timer0_divisor);
|
||||
else
|
||||
ticks_left -= prev_tick - tick;
|
||||
prev_tick = tick;
|
||||
@ -222,7 +236,7 @@ DELAY(int n)
|
||||
|
||||
|
||||
static void
|
||||
sysbeepstop() /* SOS XXX dummy is not needed */
|
||||
sysbeepstop()
|
||||
{
|
||||
outb(IO_PPI, inb(IO_PPI)&0xFC); /* disable counter2 output to speaker */
|
||||
release_timer2();
|
||||
@ -236,8 +250,10 @@ sysbeep(int pitch, int period)
|
||||
|
||||
if (acquire_timer2(TIMER_SQWAVE|TIMER_16BIT))
|
||||
return -1;
|
||||
disable_intr();
|
||||
outb(TIMER_CNTR2, pitch);
|
||||
outb(TIMER_CNTR2, (pitch>>8));
|
||||
enable_intr();
|
||||
if (!beeping) {
|
||||
outb(IO_PPI, inb(IO_PPI) | 3); /* enable counter2 output to speaker */
|
||||
beeping = period;
|
||||
@ -252,15 +268,13 @@ startrtclock()
|
||||
{
|
||||
int s;
|
||||
|
||||
findcpuspeed(); /* use the clock (while it's free)
|
||||
to find the cpu speed */
|
||||
/* initialize 8253 clock */
|
||||
outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
|
||||
|
||||
/* Correct rounding will buy us a better precision in timekeeping */
|
||||
outb (IO_TIMER1, TIMER_DIV(hz)%256);
|
||||
outb (IO_TIMER1, TIMER_DIV(hz)/256);
|
||||
timer0_rate = hz;
|
||||
timer0_divisor = hardclock_divisor = TIMER_DIV(hz);
|
||||
|
||||
/* initialize brain-dead battery powered clock */
|
||||
outb (IO_RTC, RTC_STATUSA);
|
||||
@ -274,30 +288,6 @@ startrtclock()
|
||||
}
|
||||
|
||||
|
||||
#define FIRST_GUESS 0x2000
|
||||
static void
|
||||
findcpuspeed()
|
||||
{
|
||||
unsigned char low;
|
||||
unsigned int remainder;
|
||||
|
||||
/* Put counter in count down mode */
|
||||
outb(TIMER_MODE, TIMER_16BIT|TIMER_RATEGEN);
|
||||
outb(IO_TIMER1, 0xff);
|
||||
outb(IO_TIMER1, 0xff);
|
||||
delaycount = FIRST_GUESS;
|
||||
spinwait(1);
|
||||
/* Read the value left in the counter */
|
||||
low = inb(IO_TIMER1); /* least siginifcant */
|
||||
remainder = inb(IO_TIMER1); /* most significant */
|
||||
remainder = (remainder<<8) + low ;
|
||||
/* Formula for delaycount is :
|
||||
* (loopcount * timer clock speed)/ (counter ticks * 1000)
|
||||
*/
|
||||
delaycount = (FIRST_GUESS * (TIMER_FREQ/1000)) / (0xffff-remainder);
|
||||
}
|
||||
|
||||
|
||||
/* convert 2 digit BCD number */
|
||||
int
|
||||
bcd(int i)
|
||||
@ -368,7 +358,7 @@ inittodr(time_t base)
|
||||
if (sec < 1970)
|
||||
sec += 100;
|
||||
|
||||
leap = !(sec % 4); sec = ytos(sec); /* year */
|
||||
leap = !(sec % 4); sec = ytos(sec); /* year */
|
||||
yd = mtos(bcd(rtcin(RTC_MONTH)),leap); sec+=yd; /* month */
|
||||
t = (bcd(rtcin(RTC_DAY))-1) * 24*60*60; sec+=t; yd+=t; /* date */
|
||||
day_week = rtcin(RTC_WDAY); /* day */
|
||||
|
||||
@ -34,7 +34,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)clock.c 7.2 (Berkeley) 5/12/91
|
||||
* $Id: clock.c,v 1.7 1994/04/21 14:19:16 sos Exp $
|
||||
* $Id: clock.c,v 1.6 1994/02/06 22:48:13 davidg Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -59,57 +59,78 @@
|
||||
#define TIMER_DIV(x) ((TIMER_FREQ+(x)/2)/(x))
|
||||
|
||||
void hardclock();
|
||||
static void findcpuspeed(void);
|
||||
|
||||
static char timer0_in_use = 0, timer2_in_use = 0;
|
||||
static int timer0_rate = 100; /* XXX should be hz */
|
||||
static void (*timer_func)() = hardclock;
|
||||
static unsigned int prescale = 0;
|
||||
static unsigned int hardclock_prescale;
|
||||
static int beeping;
|
||||
unsigned int delaycount; /* calibrated loop variable (1 millisecond) */
|
||||
static int beeping;
|
||||
int timer0_divisor = TIMER_DIV(100); /* XXX should be hz */
|
||||
u_int timer0_prescale;
|
||||
static char timer0_state = 0, timer2_state = 0;
|
||||
static char timer0_reprogram = 0;
|
||||
static void (*timer_func)() = hardclock;
|
||||
static void (*new_function)();
|
||||
static u_int new_rate;
|
||||
static u_int hardclock_divisor;
|
||||
|
||||
|
||||
void
|
||||
timerintr(struct intrframe frame)
|
||||
{
|
||||
timer_func(frame);
|
||||
if (timer0_in_use)
|
||||
if (prescale++ >= hardclock_prescale) {
|
||||
switch (timer0_state) {
|
||||
case 0:
|
||||
break;
|
||||
case 1:
|
||||
if ((timer0_prescale+=timer0_divisor) >= hardclock_divisor) {
|
||||
hardclock(frame);
|
||||
prescale = 0;
|
||||
timer0_prescale = 0;
|
||||
}
|
||||
break;
|
||||
case 2:
|
||||
disable_intr();
|
||||
outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(new_rate)%256);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(new_rate)/256);
|
||||
enable_intr();
|
||||
timer0_divisor = TIMER_DIV(new_rate);
|
||||
timer0_prescale = 0;
|
||||
timer_func = new_function;
|
||||
timer0_state = 1;
|
||||
break;
|
||||
case 3:
|
||||
if ((timer0_prescale+=timer0_divisor) >= hardclock_divisor) {
|
||||
hardclock(frame);
|
||||
disable_intr();
|
||||
outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(hz)%256);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(hz)/256);
|
||||
enable_intr();
|
||||
timer0_divisor = TIMER_DIV(hz);
|
||||
timer0_prescale = 0;
|
||||
timer_func = hardclock;;
|
||||
timer0_state = 0;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
int
|
||||
acquire_timer0(int rate, void (*function)() )
|
||||
{
|
||||
#ifndef INACCURATE_MICROTIME_IS_OK
|
||||
return -1;
|
||||
#else
|
||||
if (timer0_in_use) /* XXX || (rate < 20000 && rate % hz)) */
|
||||
if (timer0_state || !function)
|
||||
return -1;
|
||||
timer0_in_use = 1;
|
||||
timer0_rate = rate;
|
||||
prescale = 0;
|
||||
hardclock_prescale = rate/hz;
|
||||
outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(rate)%256);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(rate)/256);
|
||||
if (function)
|
||||
timer_func = function;
|
||||
|
||||
new_function = function;
|
||||
new_rate = rate;
|
||||
timer0_state = 2;
|
||||
return 0;
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
int
|
||||
acquire_timer2(int mode)
|
||||
{
|
||||
if (timer2_in_use)
|
||||
if (timer2_state)
|
||||
return -1;
|
||||
timer2_in_use = 1;
|
||||
timer2_state = 1;
|
||||
outb(TIMER_MODE, TIMER_SEL2 | (mode &0x3f));
|
||||
return 0;
|
||||
}
|
||||
@ -118,14 +139,9 @@ acquire_timer2(int mode)
|
||||
int
|
||||
release_timer0()
|
||||
{
|
||||
if (!timer0_in_use)
|
||||
if (!timer0_state)
|
||||
return -1;
|
||||
timer0_in_use = 0;
|
||||
timer0_rate = hz;
|
||||
outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(hz)%256);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(hz)/256);
|
||||
timer_func = hardclock;
|
||||
timer0_state = 3;
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -133,9 +149,9 @@ release_timer0()
|
||||
int
|
||||
release_timer2()
|
||||
{
|
||||
if (!timer2_in_use)
|
||||
if (!timer2_state)
|
||||
return -1;
|
||||
timer2_in_use = 0;
|
||||
timer2_state = 0;
|
||||
outb(TIMER_MODE, TIMER_SEL2|TIMER_SQWAVE|TIMER_16BIT);
|
||||
return 0;
|
||||
}
|
||||
@ -147,7 +163,6 @@ getit()
|
||||
int high, low;
|
||||
|
||||
disable_intr();
|
||||
|
||||
/* select timer0 and latch counter value */
|
||||
outb(TIMER_MODE, TIMER_SEL0);
|
||||
low = inb(TIMER_CNTR0);
|
||||
@ -201,14 +216,13 @@ DELAY(int n)
|
||||
+ usec * ((TIMER_FREQ % 1000000) / 1000) / 1000
|
||||
+ usec * (TIMER_FREQ % 1000) / 1000000;
|
||||
|
||||
counter_limit = TIMER_FREQ/timer0_rate;
|
||||
while (ticks_left > 0) {
|
||||
tick = getit(0, 0);
|
||||
#ifdef DELAYDEBUG
|
||||
++getit_calls;
|
||||
#endif
|
||||
if (tick > prev_tick)
|
||||
ticks_left -= prev_tick - (tick - counter_limit);
|
||||
ticks_left -= prev_tick - (tick - timer0_divisor);
|
||||
else
|
||||
ticks_left -= prev_tick - tick;
|
||||
prev_tick = tick;
|
||||
@ -222,7 +236,7 @@ DELAY(int n)
|
||||
|
||||
|
||||
static void
|
||||
sysbeepstop() /* SOS XXX dummy is not needed */
|
||||
sysbeepstop()
|
||||
{
|
||||
outb(IO_PPI, inb(IO_PPI)&0xFC); /* disable counter2 output to speaker */
|
||||
release_timer2();
|
||||
@ -236,8 +250,10 @@ sysbeep(int pitch, int period)
|
||||
|
||||
if (acquire_timer2(TIMER_SQWAVE|TIMER_16BIT))
|
||||
return -1;
|
||||
disable_intr();
|
||||
outb(TIMER_CNTR2, pitch);
|
||||
outb(TIMER_CNTR2, (pitch>>8));
|
||||
enable_intr();
|
||||
if (!beeping) {
|
||||
outb(IO_PPI, inb(IO_PPI) | 3); /* enable counter2 output to speaker */
|
||||
beeping = period;
|
||||
@ -252,15 +268,13 @@ startrtclock()
|
||||
{
|
||||
int s;
|
||||
|
||||
findcpuspeed(); /* use the clock (while it's free)
|
||||
to find the cpu speed */
|
||||
/* initialize 8253 clock */
|
||||
outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
|
||||
|
||||
/* Correct rounding will buy us a better precision in timekeeping */
|
||||
outb (IO_TIMER1, TIMER_DIV(hz)%256);
|
||||
outb (IO_TIMER1, TIMER_DIV(hz)/256);
|
||||
timer0_rate = hz;
|
||||
timer0_divisor = hardclock_divisor = TIMER_DIV(hz);
|
||||
|
||||
/* initialize brain-dead battery powered clock */
|
||||
outb (IO_RTC, RTC_STATUSA);
|
||||
@ -274,30 +288,6 @@ startrtclock()
|
||||
}
|
||||
|
||||
|
||||
#define FIRST_GUESS 0x2000
|
||||
static void
|
||||
findcpuspeed()
|
||||
{
|
||||
unsigned char low;
|
||||
unsigned int remainder;
|
||||
|
||||
/* Put counter in count down mode */
|
||||
outb(TIMER_MODE, TIMER_16BIT|TIMER_RATEGEN);
|
||||
outb(IO_TIMER1, 0xff);
|
||||
outb(IO_TIMER1, 0xff);
|
||||
delaycount = FIRST_GUESS;
|
||||
spinwait(1);
|
||||
/* Read the value left in the counter */
|
||||
low = inb(IO_TIMER1); /* least siginifcant */
|
||||
remainder = inb(IO_TIMER1); /* most significant */
|
||||
remainder = (remainder<<8) + low ;
|
||||
/* Formula for delaycount is :
|
||||
* (loopcount * timer clock speed)/ (counter ticks * 1000)
|
||||
*/
|
||||
delaycount = (FIRST_GUESS * (TIMER_FREQ/1000)) / (0xffff-remainder);
|
||||
}
|
||||
|
||||
|
||||
/* convert 2 digit BCD number */
|
||||
int
|
||||
bcd(int i)
|
||||
@ -368,7 +358,7 @@ inittodr(time_t base)
|
||||
if (sec < 1970)
|
||||
sec += 100;
|
||||
|
||||
leap = !(sec % 4); sec = ytos(sec); /* year */
|
||||
leap = !(sec % 4); sec = ytos(sec); /* year */
|
||||
yd = mtos(bcd(rtcin(RTC_MONTH)),leap); sec+=yd; /* month */
|
||||
t = (bcd(rtcin(RTC_DAY))-1) * 24*60*60; sec+=t; yd+=t; /* date */
|
||||
day_week = rtcin(RTC_WDAY); /* day */
|
||||
|
||||
130
sys/isa/atrtc.c
130
sys/isa/atrtc.c
@ -34,7 +34,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)clock.c 7.2 (Berkeley) 5/12/91
|
||||
* $Id: clock.c,v 1.7 1994/04/21 14:19:16 sos Exp $
|
||||
* $Id: clock.c,v 1.6 1994/02/06 22:48:13 davidg Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -59,57 +59,78 @@
|
||||
#define TIMER_DIV(x) ((TIMER_FREQ+(x)/2)/(x))
|
||||
|
||||
void hardclock();
|
||||
static void findcpuspeed(void);
|
||||
|
||||
static char timer0_in_use = 0, timer2_in_use = 0;
|
||||
static int timer0_rate = 100; /* XXX should be hz */
|
||||
static void (*timer_func)() = hardclock;
|
||||
static unsigned int prescale = 0;
|
||||
static unsigned int hardclock_prescale;
|
||||
static int beeping;
|
||||
unsigned int delaycount; /* calibrated loop variable (1 millisecond) */
|
||||
static int beeping;
|
||||
int timer0_divisor = TIMER_DIV(100); /* XXX should be hz */
|
||||
u_int timer0_prescale;
|
||||
static char timer0_state = 0, timer2_state = 0;
|
||||
static char timer0_reprogram = 0;
|
||||
static void (*timer_func)() = hardclock;
|
||||
static void (*new_function)();
|
||||
static u_int new_rate;
|
||||
static u_int hardclock_divisor;
|
||||
|
||||
|
||||
void
|
||||
timerintr(struct intrframe frame)
|
||||
{
|
||||
timer_func(frame);
|
||||
if (timer0_in_use)
|
||||
if (prescale++ >= hardclock_prescale) {
|
||||
switch (timer0_state) {
|
||||
case 0:
|
||||
break;
|
||||
case 1:
|
||||
if ((timer0_prescale+=timer0_divisor) >= hardclock_divisor) {
|
||||
hardclock(frame);
|
||||
prescale = 0;
|
||||
timer0_prescale = 0;
|
||||
}
|
||||
break;
|
||||
case 2:
|
||||
disable_intr();
|
||||
outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(new_rate)%256);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(new_rate)/256);
|
||||
enable_intr();
|
||||
timer0_divisor = TIMER_DIV(new_rate);
|
||||
timer0_prescale = 0;
|
||||
timer_func = new_function;
|
||||
timer0_state = 1;
|
||||
break;
|
||||
case 3:
|
||||
if ((timer0_prescale+=timer0_divisor) >= hardclock_divisor) {
|
||||
hardclock(frame);
|
||||
disable_intr();
|
||||
outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(hz)%256);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(hz)/256);
|
||||
enable_intr();
|
||||
timer0_divisor = TIMER_DIV(hz);
|
||||
timer0_prescale = 0;
|
||||
timer_func = hardclock;;
|
||||
timer0_state = 0;
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
int
|
||||
acquire_timer0(int rate, void (*function)() )
|
||||
{
|
||||
#ifndef INACCURATE_MICROTIME_IS_OK
|
||||
return -1;
|
||||
#else
|
||||
if (timer0_in_use) /* XXX || (rate < 20000 && rate % hz)) */
|
||||
if (timer0_state || !function)
|
||||
return -1;
|
||||
timer0_in_use = 1;
|
||||
timer0_rate = rate;
|
||||
prescale = 0;
|
||||
hardclock_prescale = rate/hz;
|
||||
outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(rate)%256);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(rate)/256);
|
||||
if (function)
|
||||
timer_func = function;
|
||||
|
||||
new_function = function;
|
||||
new_rate = rate;
|
||||
timer0_state = 2;
|
||||
return 0;
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
int
|
||||
acquire_timer2(int mode)
|
||||
{
|
||||
if (timer2_in_use)
|
||||
if (timer2_state)
|
||||
return -1;
|
||||
timer2_in_use = 1;
|
||||
timer2_state = 1;
|
||||
outb(TIMER_MODE, TIMER_SEL2 | (mode &0x3f));
|
||||
return 0;
|
||||
}
|
||||
@ -118,14 +139,9 @@ acquire_timer2(int mode)
|
||||
int
|
||||
release_timer0()
|
||||
{
|
||||
if (!timer0_in_use)
|
||||
if (!timer0_state)
|
||||
return -1;
|
||||
timer0_in_use = 0;
|
||||
timer0_rate = hz;
|
||||
outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(hz)%256);
|
||||
outb(TIMER_CNTR0, TIMER_DIV(hz)/256);
|
||||
timer_func = hardclock;
|
||||
timer0_state = 3;
|
||||
return 0;
|
||||
}
|
||||
|
||||
@ -133,9 +149,9 @@ release_timer0()
|
||||
int
|
||||
release_timer2()
|
||||
{
|
||||
if (!timer2_in_use)
|
||||
if (!timer2_state)
|
||||
return -1;
|
||||
timer2_in_use = 0;
|
||||
timer2_state = 0;
|
||||
outb(TIMER_MODE, TIMER_SEL2|TIMER_SQWAVE|TIMER_16BIT);
|
||||
return 0;
|
||||
}
|
||||
@ -147,7 +163,6 @@ getit()
|
||||
int high, low;
|
||||
|
||||
disable_intr();
|
||||
|
||||
/* select timer0 and latch counter value */
|
||||
outb(TIMER_MODE, TIMER_SEL0);
|
||||
low = inb(TIMER_CNTR0);
|
||||
@ -201,14 +216,13 @@ DELAY(int n)
|
||||
+ usec * ((TIMER_FREQ % 1000000) / 1000) / 1000
|
||||
+ usec * (TIMER_FREQ % 1000) / 1000000;
|
||||
|
||||
counter_limit = TIMER_FREQ/timer0_rate;
|
||||
while (ticks_left > 0) {
|
||||
tick = getit(0, 0);
|
||||
#ifdef DELAYDEBUG
|
||||
++getit_calls;
|
||||
#endif
|
||||
if (tick > prev_tick)
|
||||
ticks_left -= prev_tick - (tick - counter_limit);
|
||||
ticks_left -= prev_tick - (tick - timer0_divisor);
|
||||
else
|
||||
ticks_left -= prev_tick - tick;
|
||||
prev_tick = tick;
|
||||
@ -222,7 +236,7 @@ DELAY(int n)
|
||||
|
||||
|
||||
static void
|
||||
sysbeepstop() /* SOS XXX dummy is not needed */
|
||||
sysbeepstop()
|
||||
{
|
||||
outb(IO_PPI, inb(IO_PPI)&0xFC); /* disable counter2 output to speaker */
|
||||
release_timer2();
|
||||
@ -236,8 +250,10 @@ sysbeep(int pitch, int period)
|
||||
|
||||
if (acquire_timer2(TIMER_SQWAVE|TIMER_16BIT))
|
||||
return -1;
|
||||
disable_intr();
|
||||
outb(TIMER_CNTR2, pitch);
|
||||
outb(TIMER_CNTR2, (pitch>>8));
|
||||
enable_intr();
|
||||
if (!beeping) {
|
||||
outb(IO_PPI, inb(IO_PPI) | 3); /* enable counter2 output to speaker */
|
||||
beeping = period;
|
||||
@ -252,15 +268,13 @@ startrtclock()
|
||||
{
|
||||
int s;
|
||||
|
||||
findcpuspeed(); /* use the clock (while it's free)
|
||||
to find the cpu speed */
|
||||
/* initialize 8253 clock */
|
||||
outb(TIMER_MODE, TIMER_SEL0|TIMER_RATEGEN|TIMER_16BIT);
|
||||
|
||||
/* Correct rounding will buy us a better precision in timekeeping */
|
||||
outb (IO_TIMER1, TIMER_DIV(hz)%256);
|
||||
outb (IO_TIMER1, TIMER_DIV(hz)/256);
|
||||
timer0_rate = hz;
|
||||
timer0_divisor = hardclock_divisor = TIMER_DIV(hz);
|
||||
|
||||
/* initialize brain-dead battery powered clock */
|
||||
outb (IO_RTC, RTC_STATUSA);
|
||||
@ -274,30 +288,6 @@ startrtclock()
|
||||
}
|
||||
|
||||
|
||||
#define FIRST_GUESS 0x2000
|
||||
static void
|
||||
findcpuspeed()
|
||||
{
|
||||
unsigned char low;
|
||||
unsigned int remainder;
|
||||
|
||||
/* Put counter in count down mode */
|
||||
outb(TIMER_MODE, TIMER_16BIT|TIMER_RATEGEN);
|
||||
outb(IO_TIMER1, 0xff);
|
||||
outb(IO_TIMER1, 0xff);
|
||||
delaycount = FIRST_GUESS;
|
||||
spinwait(1);
|
||||
/* Read the value left in the counter */
|
||||
low = inb(IO_TIMER1); /* least siginifcant */
|
||||
remainder = inb(IO_TIMER1); /* most significant */
|
||||
remainder = (remainder<<8) + low ;
|
||||
/* Formula for delaycount is :
|
||||
* (loopcount * timer clock speed)/ (counter ticks * 1000)
|
||||
*/
|
||||
delaycount = (FIRST_GUESS * (TIMER_FREQ/1000)) / (0xffff-remainder);
|
||||
}
|
||||
|
||||
|
||||
/* convert 2 digit BCD number */
|
||||
int
|
||||
bcd(int i)
|
||||
@ -368,7 +358,7 @@ inittodr(time_t base)
|
||||
if (sec < 1970)
|
||||
sec += 100;
|
||||
|
||||
leap = !(sec % 4); sec = ytos(sec); /* year */
|
||||
leap = !(sec % 4); sec = ytos(sec); /* year */
|
||||
yd = mtos(bcd(rtcin(RTC_MONTH)),leap); sec+=yd; /* month */
|
||||
t = (bcd(rtcin(RTC_DAY))-1) * 24*60*60; sec+=t; yd+=t; /* date */
|
||||
day_week = rtcin(RTC_WDAY); /* day */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user