Move examples/ to examples/standalone

The current files in examples are all standalone application examples,
so put them in their own subdirectory for organizational purposes

Signed-off-by: Peter Tyser <ptyser@xes-inc.com>

1 files changed, 0 insertions, 349 deletions

diff --git a/examples/timer.c b/examples/timer.c
deleted file mode 100644
index 6628b21..0000000
--- a/examples/timer.c
+++ /dev/null
@@ -1,349 +0,0 @@
-/*
- * (C) Copyright 2000
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
- */
-
-#include <common.h>
-#include <commproc.h>
-#include <mpc8xx_irq.h>
-#include <exports.h>
-
-DECLARE_GLOBAL_DATA_PTR;
-
-#undef	DEBUG
-
-#define	TIMER_PERIOD	1000000		/* 1 second clock */
-
-static void timer_handler (void *arg);
-
-
-/* Access functions for the Machine State Register */
-static __inline__ unsigned long get_msr(void)
-{
-    unsigned long msr;
-
-    asm volatile("mfmsr %0" : "=r" (msr) :);
-    return msr;
-}
-
-static __inline__ void set_msr(unsigned long msr)
-{
-    asm volatile("mtmsr %0" : : "r" (msr));
-}
-
-/*
- * Definitions to access the CPM Timer registers
- * See 8xx_immap.h for Internal Memory Map layout,
- * and commproc.h for CPM Interrupt vectors (aka "IRQ"s)
- */
-
-typedef struct tid_8xx_cpmtimer_s {
-  int		 cpm_vec;	/* CPM Interrupt Vector for this timer	*/
-  ushort	*tgcrp;		/* Pointer to Timer Global Config Reg.	*/
-  ushort	*tmrp;		/* Pointer to Timer Mode Register	*/
-  ushort	*trrp;		/* Pointer to Timer Reference Register	*/
-  ushort	*tcrp;		/* Pointer to Timer Capture Register	*/
-  ushort	*tcnp;		/* Pointer to Timer Counter Register	*/
-  ushort	*terp;		/* Pointer to Timer Event Register	*/
-} tid_8xx_cpmtimer_t;
-
-#ifndef CLOCKRATE
-#  define CLOCKRATE 64
-#endif
-
-#define	CPMT_CLOCK_DIV		16
-#define	CPMT_MAX_PRESCALER	256
-#define CPMT_MAX_REFERENCE	65535	/* max. unsigned short */
-
-#define	CPMT_MAX_TICKS		(CPMT_MAX_REFERENCE * CPMT_MAX_PRESCALER)
-#define	CPMT_MAX_TICKS_WITH_DIV	(CPMT_MAX_REFERENCE * CPMT_MAX_PRESCALER * CPMT_CLOCK_DIV)
-#define	CPMT_MAX_INTERVAL	(CPMT_MAX_TICKS_WITH_DIV / CLOCKRATE)
-
-/* For now: always use max. prescaler value */
-#define	CPMT_PRESCALER		(CPMT_MAX_PRESCALER)
-
-/* CPM Timer Event Register Bits */
-#define	CPMT_EVENT_CAP		0x0001	/* Capture Event		*/
-#define	CPMT_EVENT_REF		0x0002	/* Reference Counter Event	*/
-
-/* CPM Timer Global Config Register */
-#define	CPMT_GCR_RST		0x0001	/* Reset  Timer			*/
-#define	CPMT_GCR_STP		0x0002	/* Stop   Timer			*/
-#define	CPMT_GCR_FRZ		0x0004	/* Freeze Timer			*/
-#define	CPMT_GCR_GM_CAS		0x0008	/* Gate Mode / Cascade Timers	*/
-#define	CPMT_GCR_MASK		(CPMT_GCR_RST|CPMT_GCR_STP|CPMT_GCR_FRZ|CPMT_GCR_GM_CAS)
-
-/* CPM Timer Mode register */
-#define	CPMT_MR_GE		0x0001	/* Gate Enable			*/
-#define	CPMT_MR_ICLK_CASC	0x0000	/* Clock internally cascaded	*/
-#define	CPMT_MR_ICLK_CLK	0x0002	/* Clock = system clock		*/
-#define	CPMT_MR_ICLK_CLKDIV	0x0004	/* Clock = system clock / 16	*/
-#define	CPMT_MR_ICLK_TIN	0x0006	/* Clock = TINx signal		*/
-#define	CPMT_MR_FRR		0x0008	/* Free Run / Restart		*/
-#define	CPMT_MR_ORI		0x0010	/* Out. Reference Interrupt En.	*/
-#define	CPMT_MR_OM		0x0020	/* Output Mode			*/
-#define	CPMT_MR_CE_DIS		0x0000	/* Capture/Interrupt disabled	*/
-#define	CPMT_MR_CE_RISE		0x0040	/* Capt./Interr. on rising  TIN	*/
-#define CPMT_MR_CE_FALL		0x0080	/* Capt./Interr. on falling TIN	*/
-#define	CPMT_MR_CE_ANY		0x00C0	/* Capt./Interr. on any TIN edge*/
-
-
-/*
- * which CPM timer to use - index starts at 0 (= timer 1)
- */
-#define	TID_TIMER_ID	0	/* use CPM timer 1		*/
-
-void setPeriod (tid_8xx_cpmtimer_t *hwp, ulong interval);
-
-static char *usage = "\n[q, b, e, ?] ";
-
-int timer (int argc, char *argv[])
-{
-	cpmtimer8xx_t *cpmtimerp;	/* Pointer to the CPM Timer structure   */
-	tid_8xx_cpmtimer_t hw;
-	tid_8xx_cpmtimer_t *hwp = &hw;
-	int c;
-	int running;
-
-	app_startup(argv);
-
-	/* Pointer to CPM Timer structure */
-	cpmtimerp = &((immap_t *) gd->bd->bi_immr_base)->im_cpmtimer;
-
-	printf ("TIMERS=0x%x\n", (unsigned) cpmtimerp);
-
-	/* Initialize pointers depending on which timer we use */
-	switch (TID_TIMER_ID) {
-	case 0:
-		hwp->tmrp = &(cpmtimerp->cpmt_tmr1);
-		hwp->trrp = &(cpmtimerp->cpmt_trr1);
-		hwp->tcrp = &(cpmtimerp->cpmt_tcr1);
-		hwp->tcnp = &(cpmtimerp->cpmt_tcn1);
-		hwp->terp = &(cpmtimerp->cpmt_ter1);
-		hwp->cpm_vec = CPMVEC_TIMER1;
-		break;
-	case 1:
-		hwp->tmrp = &(cpmtimerp->cpmt_tmr2);
-		hwp->trrp = &(cpmtimerp->cpmt_trr2);
-		hwp->tcrp = &(cpmtimerp->cpmt_tcr2);
-		hwp->tcnp = &(cpmtimerp->cpmt_tcn2);
-		hwp->terp = &(cpmtimerp->cpmt_ter2);
-		hwp->cpm_vec = CPMVEC_TIMER2;
-		break;
-	case 2:
-		hwp->tmrp = &(cpmtimerp->cpmt_tmr3);
-		hwp->trrp = &(cpmtimerp->cpmt_trr3);
-		hwp->tcrp = &(cpmtimerp->cpmt_tcr3);
-		hwp->tcnp = &(cpmtimerp->cpmt_tcn3);
-		hwp->terp = &(cpmtimerp->cpmt_ter3);
-		hwp->cpm_vec = CPMVEC_TIMER3;
-		break;
-	case 3:
-		hwp->tmrp = &(cpmtimerp->cpmt_tmr4);
-		hwp->trrp = &(cpmtimerp->cpmt_trr4);
-		hwp->tcrp = &(cpmtimerp->cpmt_tcr4);
-		hwp->tcnp = &(cpmtimerp->cpmt_tcn4);
-		hwp->terp = &(cpmtimerp->cpmt_ter4);
-		hwp->cpm_vec = CPMVEC_TIMER4;
-		break;
-	}
-
-	hwp->tgcrp = &cpmtimerp->cpmt_tgcr;
-
-	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,
-			(unsigned) hwp->tgcrp,
-			(unsigned) hwp->tmrp,
-			(unsigned) hwp->trrp,
-			(unsigned) hwp->tcrp,
-			(unsigned) hwp->tcnp,
-			(unsigned) hwp->terp
-			);
-
-	/* reset timer    */
-	*hwp->tgcrp &= ~(CPMT_GCR_MASK << TID_TIMER_ID);
-
-	/* clear all events */
-	*hwp->terp = (CPMT_EVENT_CAP | CPMT_EVENT_REF);
-
-	printf (usage);
-	running = 0;
-	while ((c = getc()) != 'q') {
-	    if (c == 'b') {
-
-		setPeriod (hwp, TIMER_PERIOD);	/* Set period and start ticking */
-
-		/* Install interrupt handler (enable timer in CIMR) */
-		install_hdlr (hwp->cpm_vec, timer_handler, hwp);
-
-		printf ("Enabling timer\n");
-
-		/* enable timer */
-		*hwp->tgcrp |= (CPMT_GCR_RST << TID_TIMER_ID);
-		running = 1;
-
-#ifdef	DEBUG
-		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
-	    } else if (c == 'e') {
-
-		printf ("Stopping timer\n");
-
-		*hwp->tgcrp &= ~(CPMT_GCR_MASK << TID_TIMER_ID);
-		running = 0;
-
-#ifdef	DEBUG
-		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 */
-		free_hdlr (hwp->cpm_vec);
-
-	    } else if (c == '?') {
-#ifdef	DEBUG
-		cpic8xx_t *cpm_icp = &((immap_t *) gd->bd->bi_immr_base)->im_cpic;
-		sysconf8xx_t *siup = &((immap_t *) gd->bd->bi_immr_base)->im_siu_conf;
-#endif
-
-		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
-		printf ("SIUMCR=0x%08lx, SYPCR=0x%08lx,"
-			" SIMASK=0x%08lx, SIPEND=0x%08lx\n",
-				siup->sc_siumcr,
-				siup->sc_sypcr,
-				siup->sc_simask,
-				siup->sc_sipend
-			);
-
-		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 {
-		printf ("\nEnter: q - quit, b - start timer, e - stop timer, ? - get status\n");
-	    }
-	    printf (usage);
-	}
-	if (running) {
-		printf ("Stopping timer\n");
-		*hwp->tgcrp &= ~(CPMT_GCR_MASK << TID_TIMER_ID);
-		free_hdlr (hwp->cpm_vec);
-	}
-
-	return (0);
-}
-
-
-/* Set period in microseconds and start.
- * Truncate to maximum period if more than this is requested - but warn about it.
- */
-
-void setPeriod (tid_8xx_cpmtimer_t *hwp, ulong interval)
-{
-	unsigned short prescaler;
-	unsigned long ticks;
-
-	printf ("Set interval %ld us\n", interval);
-
-	/* Warn if requesting longer period than possible */
-	if (interval > CPMT_MAX_INTERVAL) {
-		printf ("Truncate interval %ld to maximum (%d)\n",
-				interval, CPMT_MAX_INTERVAL);
-		interval = CPMT_MAX_INTERVAL;
-	}
-	/*
-	 * Check if we want to use clock divider:
-	 * Since the reference counter can be incremented only in integer steps,
-	 * we try to keep it as big as possible to allow the resulting period to be
-	 * as precise as possible.
-	 */
-	/* prescaler, enable interrupt, restart after ref count is reached */
-	prescaler = (ushort) ((CPMT_PRESCALER - 1) << 8) |
-			CPMT_MR_ORI |
-			CPMT_MR_FRR;
-
-	ticks = ((ulong) CLOCKRATE * interval);
-
-	if (ticks > CPMT_MAX_TICKS) {
-		ticks /= CPMT_CLOCK_DIV;
-		prescaler |= CPMT_MR_ICLK_CLKDIV;	/* use system clock divided by 16 */
-	} else {
-		prescaler |= CPMT_MR_ICLK_CLK;	/* use system clock without divider */
-	}
-
-#ifdef	DEBUG
-	printf ("clock/%d, prescale factor %d, reference %ld, ticks %ld\n",
-			(ticks > CPMT_MAX_TICKS) ? CPMT_CLOCK_DIV : 1,
-			CPMT_PRESCALER,
-			(ticks / CPMT_PRESCALER),
-			ticks
-			);
-#endif
-
-	/* set prescaler register */
-	*hwp->tmrp = prescaler;
-
-	/* clear timer counter */
-	*hwp->tcnp = 0;
-
-	/* set reference register */
-	*hwp->trrp = (unsigned short) (ticks / CPMT_PRESCALER);
-
-#ifdef	DEBUG
-	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
-}
-
-/*
- * Handler for CPMVEC_TIMER1 interrupt
- */
-static
-void timer_handler (void *arg)
-{
-	tid_8xx_cpmtimer_t *hwp = (tid_8xx_cpmtimer_t *)arg;
-
-	/* printf ("** TER1=%04x ** ", *hwp->terp); */
-
-	/* just for demonstration */
-	printf (".");
-
-	/* clear all possible events: Ref. and Cap. */
-	*hwp->terp = (CPMT_EVENT_CAP | CPMT_EVENT_REF);
-}