/* * vivi/arch/s3c2410/smdk2410_test.c: test codes for SMDK-2410 * * Copyrigth (C) 2002 MIZI Research, Inc. * * Author: Janghoon Lyu <nandy@mizi.com> * Date  : $Date: 2004/02/04 06:22:25 $ * * $Revision: 1.1.1.1 $ */#include <config.h>#include <machine.h>#include <command.h>#include <printk.h>#include <string.h>#include <mmu.h>#include <time.h>#include <types.h>#include <serial.h>#define PM_RESUME	0#define PM_SUSPEND	2#define LOWLEVEL	0#define HIGHLEVEL	1#define FALLING_EDGE	2#define RISINGE_EDGE	4#define BOTH_EDGE	6#define EINT0		0int pm_set_gpios(int request){	switch (request) {	case PM_SUSPEND:		break;	case PM_RESUME:		break;	default:		return -1;	}	return 0;}int pm_send_all(int request){	switch (request) {	case PM_SUSPEND:		/* Suspend USB pads */		PMCTL1 |= (USBSPD1 | USBSPD0);		/* Disable LCD */		break;	case PM_RESUME:		/* Resume USB pads */		PMCTL1 &= ~(USBSPD1 | USBSPD0);		/* Enable LCD */		break;	default:		return -1;	}	return 0;}int pm_s3c2410_cpu_suspend(void){	/* save return address */	PMSR0 = 0x38;	printk("call SleepRamProc()\n");	cache_clean_invalidate();	tlb_invalidate();	__asm__(		"mov	r2, #0x34\n"		"mrc	p15, 0, r1, c1, c0, 0\n"	/* read ctrl register */		"bic	r1, r1, #0x0001\n"		/* MMU is off */			"mcr	p15, 0, r1, c1, c0, 0\n"	/* write ctrl register */		"mov	pc, r2\n"		"nop\n"		"nop\n");	for (;;) ;}int pm_cpu_suspend(void){	pm_set_gpios(PM_SUSPEND);	pm_s3c2410_cpu_suspend();	pm_set_gpios(PM_RESUME);	return 0;}int pm_sys_suspend(void){	int ret;	/* Disable all interrupts */	ret = pm_send_all(PM_SUSPEND);	pm_cpu_suspend();	ret = pm_send_all(PM_RESUME);	/* Enable all interrupts */		return 0;}int pm_go_suspend(void){	GPFCON = 2;	EXTINT0 = (FALLING_EDGE << EINT0);	SRCPND = 0xffffffff;	INTPND = 0xffffffff;	INTMOD = 0x00000000;	INTMSK = ~(0x1);	pm_sys_suspend();		return 0;}void wait_eint0(void){	unsigned long cpsr;	/* Setup power button */	__asm__("mrs %0, cpsr" : "=r" (cpsr));	cpsr &= ~(I_BIT);	__asm__("msr cpsr_c, %0" : : "r" (cpsr));       /* enable IRQ */	/* setup edge */	GPFCON = 2;	EXTINT0 = (FALLING_EDGE << EINT0);	SRCPND = 0xffffffff;	INTPND = 0xffffffff;	INTMOD = 0x00000000;	INTMSK = ~(0x1);}void z_car(void){	__u8 c = 0;	GPFCON = 0x55aa;	GPFUP = 0xff;	for (;;) {		GPFDAT = 0xe0;		mdelay(100);		GPFDAT = 0xd0;		mdelay(100);		GPFDAT = 0xb0;		mdelay(100);		GPFDAT = 0x70;		mdelay(100);		GPFDAT = 0xb0;		mdelay(100);		GPFDAT = 0xd0;		mdelay(100);		c = do_getc(NULL, 0x100, NULL);		if (c != 0) break;	}}static voidwait_int(int irq){	while (!(INTPND & (1 << irq))) ;	printk("OK. detected irq %d\n", irq);}void test_btn(void){	GPFCON = 2;	EXTINT0 = (BOTH_EDGE << EINT0);	SRCPND = 0xffffffff;	INTPND = 0xffffffff;	INTMOD = 0x00000000;	INTMSK = ~(0x1);	printk("GPFDAT = 0x%08lx\n", GPFDAT);	wait_int(EINT0);	printk("GPFDAT = 0x%08lx\n", GPFDAT);	SRCPND = 0xffffffff;	INTPND = 0xffffffff;	wait_int(EINT0);	printk("GPFDAT = 0x%08lx\n", GPFDAT);}void display_help(void){	printk("Usage:\n");	printk("\ttest sleep\t\t-- Test sleep mode. (pwbt is eint0)\n");	printk("\ttest int\t\t-- Test external interrupt 0\n");	printk("\ttest led\t\t-- Test LEDs\n");}void command_test(int argc, const char **argv){	switch (argc) {	case 2:		if (strncmp("sleep", argv[1], 4) == 0) {			pm_go_suspend();			break;		}		if (strncmp("int", argv[1], 3) == 0) {			wait_eint0();			break;		}		if (strncmp("led", argv[1], 3) == 0) {			z_car();			break;		}		if (strncmp("btn", argv[1], 3) == 0) {			test_btn();			break;		}	default:		display_help();	}}user_command_t test_cmd = {	"test",	command_test,	NULL,	"test [{cmds}]\t\t\t-- Test functions"};