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* Implement new mechanism to export U-Boot's functions to standalone

Browse source 
applications: instead of using (PPC-specific) system calls we now
  use a jump table; please see doc/README.standalone for details

* Patch by Dave Westwood, 24 Jul 2003:
  added support for Unity OS (a proprietary OS)
This commit is contained in:
wdenk 2003-07-24 23:38:38 +00:00
parent 2535d60277
commit 27b207fd0a
72 changed files with 950 additions and 1092 deletions
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48
examples/timer.c
View file

@ -24,7 +24,7 @@
#include <common.h>
#include <commproc.h>
#include <mpc8xx_irq.h>
#include <syscall.h>
#include <exports.h>
#undef DEBUG
@ -123,10 +123,12 @@ int timer (int argc, char *argv[])
int c;
int running;
app_startup(argv);
/* Pointer to CPM Timer structure */
cpmtimerp = &((immap_t *) gd->bd->bi_immr_base)->im_cpmtimer;
mon_printf ("TIMERS=0x%x\n", (unsigned) cpmtimerp);
printf ("TIMERS=0x%x\n", (unsigned) cpmtimerp);
/* Initialize pointers depending on which timer we use */
switch (TID_TIMER_ID) {
@ -166,7 +168,7 @@ int timer (int argc, char *argv[])
hwp->tgcrp = &cpmtimerp->cpmt_tgcr;
mon_printf ("Using timer %d\n"
printf ("Using timer %d\n"
"tgcr @ 0x%x, tmr @ 0x%x, trr @ 0x%x,"
" tcr @ 0x%x, tcn @ 0x%x, ter @ 0x%x\n",
TID_TIMER_ID + 1,
@ -184,24 +186,24 @@ int timer (int argc, char *argv[])
/* clear all events */
*hwp->terp = (CPMT_EVENT_CAP | CPMT_EVENT_REF);
mon_printf (usage);
printf (usage);
running = 0;
while ((c = mon_getc()) != 'q') {
while ((c = getc()) != 'q') {
if (c == 'b') {
setPeriod (hwp, TIMER_PERIOD); /* Set period and start ticking */
/* Install interrupt handler (enable timer in CIMR) */
mon_install_hdlr (hwp->cpm_vec, timer_handler, hwp);
install_hdlr (hwp->cpm_vec, timer_handler, hwp);
mon_printf ("Enabling timer\n");
printf ("Enabling timer\n");
/* enable timer */
*hwp->tgcrp |= (CPMT_GCR_RST << TID_TIMER_ID);
running = 1;
#ifdef DEBUG
mon_printf ("tgcr=0x%x, tmr=0x%x, trr=0x%x,"
printf ("tgcr=0x%x, tmr=0x%x, trr=0x%x,"
" tcr=0x%x, tcn=0x%x, ter=0x%x\n",
*hwp->tgcrp, *hwp->tmrp, *hwp->trrp,
*hwp->tcrp, *hwp->tcnp, *hwp->terp
@ -209,20 +211,20 @@ int timer (int argc, char *argv[])
#endif
} else if (c == 'e') {
mon_printf ("Stopping timer\n");
printf ("Stopping timer\n");
*hwp->tgcrp &= ~(CPMT_GCR_MASK << TID_TIMER_ID);
running = 0;
#ifdef DEBUG
mon_printf ("tgcr=0x%x, tmr=0x%x, trr=0x%x,"
printf ("tgcr=0x%x, tmr=0x%x, trr=0x%x,"
" tcr=0x%x, tcn=0x%x, ter=0x%x\n",
*hwp->tgcrp, *hwp->tmrp, *hwp->trrp,
*hwp->tcrp, *hwp->tcnp, *hwp->terp
);
#endif
/* Uninstall interrupt handler */
mon_free_hdlr (hwp->cpm_vec);
free_hdlr (hwp->cpm_vec);
} else if (c == '?') {
#ifdef DEBUG
@ -230,13 +232,13 @@ int timer (int argc, char *argv[])
sysconf8xx_t *siup = &((immap_t *) gd->bd->bi_immr_base)->im_siu_conf;
#endif
mon_printf ("\ntgcr=0x%x, tmr=0x%x, trr=0x%x,"
printf ("\ntgcr=0x%x, tmr=0x%x, trr=0x%x,"
" tcr=0x%x, tcn=0x%x, ter=0x%x\n",
*hwp->tgcrp, *hwp->tmrp, *hwp->trrp,
*hwp->tcrp, *hwp->tcnp, *hwp->terp
);
#ifdef DEBUG
mon_printf ("SIUMCR=0x%08lx, SYPCR=0x%08lx,"
printf ("SIUMCR=0x%08lx, SYPCR=0x%08lx,"
" SIMASK=0x%08lx, SIPEND=0x%08lx\n",
siup->sc_siumcr,
siup->sc_sypcr,
@ -244,21 +246,21 @@ int timer (int argc, char *argv[])
siup->sc_sipend
);
mon_printf ("CIMR=0x%08lx, CICR=0x%08lx, CIPR=0x%08lx\n",
printf ("CIMR=0x%08lx, CICR=0x%08lx, CIPR=0x%08lx\n",
cpm_icp->cpic_cimr,
cpm_icp->cpic_cicr,
cpm_icp->cpic_cipr
);
#endif
} else {
mon_printf ("\nEnter: q - quit, b - start timer, e - stop timer, ? - get status\n");
printf ("\nEnter: q - quit, b - start timer, e - stop timer, ? - get status\n");
}
mon_printf (usage);
printf (usage);
}
if (running) {
mon_printf ("Stopping timer\n");
printf ("Stopping timer\n");
*hwp->tgcrp &= ~(CPMT_GCR_MASK << TID_TIMER_ID);
mon_free_hdlr (hwp->cpm_vec);
free_hdlr (hwp->cpm_vec);
}
return (0);
@ -274,11 +276,11 @@ void setPeriod (tid_8xx_cpmtimer_t *hwp, ulong interval)
unsigned short prescaler;
unsigned long ticks;
mon_printf ("Set interval %ld us\n", interval);
printf ("Set interval %ld us\n", interval);
/* Warn if requesting longer period than possible */
if (interval > CPMT_MAX_INTERVAL) {
mon_printf ("Truncate interval %ld to maximum (%d)\n",
printf ("Truncate interval %ld to maximum (%d)\n",
interval, CPMT_MAX_INTERVAL);
interval = CPMT_MAX_INTERVAL;
}
@ -303,7 +305,7 @@ void setPeriod (tid_8xx_cpmtimer_t *hwp, ulong interval)
}
#ifdef DEBUG
mon_printf ("clock/%d, prescale factor %d, reference %ld, ticks %ld\n",
printf ("clock/%d, prescale factor %d, reference %ld, ticks %ld\n",
(ticks > CPMT_MAX_TICKS) ? CPMT_CLOCK_DIV : 1,
CPMT_PRESCALER,
(ticks / CPMT_PRESCALER),
@ -321,7 +323,7 @@ void setPeriod (tid_8xx_cpmtimer_t *hwp, ulong interval)
*hwp->trrp = (unsigned short) (ticks / CPMT_PRESCALER);
#ifdef DEBUG
mon_printf ("tgcr=0x%x, tmr=0x%x, trr=0x%x,"
printf ("tgcr=0x%x, tmr=0x%x, trr=0x%x,"
" tcr=0x%x, tcn=0x%x, ter=0x%x\n",
*hwp->tgcrp, *hwp->tmrp, *hwp->trrp,
*hwp->tcrp, *hwp->tcnp, *hwp->terp
@ -340,7 +342,7 @@ void timer_handler (void *arg)
/* printf ("** TER1=%04x ** ", *hwp->terp); */
/* just for demonstration */
mon_printf (".");
printf (".");
/* clear all possible events: Ref. and Cap. */
*hwp->terp = (CPMT_EVENT_CAP | CPMT_EVENT_REF);