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//=============================================================================

//

//      battery.c

//

//=============================================================================

//####ECOSGPLCOPYRIGHTBEGIN####

// -------------------------------------------

// This file is part of eCos, the Embedded Configurable Operating System.

// Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 Red Hat, Inc.

//

// eCos 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 or (at your option) any later version.

//

// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,

// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.

//

// As a special exception, if other files instantiate templates or use macros

// or inline functions from this file, or you compile this file and link it

// with other works to produce a work based on this file, this file does not

// by itself cause the resulting work to be covered by the GNU General Public

// License. However the source code for this file must still be made available

// in accordance with section (3) of the GNU General Public License.

//

// This exception does not invalidate any other reasons why a work based on

// this file might be covered by the GNU General Public License.

//

// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.

// at http://sources.redhat.com/ecos/ecos-license/

// -------------------------------------------

//####ECOSGPLCOPYRIGHTEND####

//=============================================================================

//#####DESCRIPTIONBEGIN####

//

// Author(s):   Scott Coulter, Jeff Frazier, Eric Breeden

// Contributors: Mark Salter

// Date:        2001-01-25

// Purpose:     

// Description: 

//

//####DESCRIPTIONEND####

//

//===========================================================================*/

#include <redboot.h>

#include <cyg/hal/hal_io.h>

#include "test_menu.h"

extern void diag_wait(void);

#define TEST_PATTERN 0x55555555

// test battery status

void

battery_status(MENU_ARG arg)

{

    unsigned short status;

    // read battery status port

    status = *IQ80321_BATTERY_STATUS;

    // examine bit b0 BATT_PRES#

    if (status & IQ80321_BATTERY_NOT_PRESENT) {

        diag_printf("No battery installed.\n");

        diag_wait();

        return;

    }

    diag_printf("A battery is installed.\n");

    if (status & IQ80321_BATTERY_CHARGE)

        diag_printf("Battery is fully charged.\n");

    else

        diag_printf("Battery is charging.\n");

    if (status & IQ80321_BATTERY_DISCHARGE)

        diag_printf("Battery is fully discharged.\n");

    else

        diag_printf("Battery voltage measures within normal operating range.\n");

    if (status & IQ80321_BATTERY_ENABLE)

        diag_printf("Battery Backup is enabled.\n");

    else

        diag_printf("Battery Backup is disabled.\n");

    diag_wait();

}

#ifdef CYGSEM_HAL_ARM_IQ80321_BATTERY_TEST

// Data to be written to address and read after the board has

// been powered off and powered back on

static void

battery_test_write (MENU_ARG arg)

{

    *IQ80321_BATTERY_STATUS |= IQ80321_BATTERY_ENABLE;

    if (*IQ80321_BATTERY_STATUS & IQ80321_BATTERY_ENABLE)

        diag_printf("The battery backup has now been enabled.\n");

    else

        diag_printf("Unable to enable battery backup.\n");

    *(volatile unsigned *)SDRAM_BATTERY_TEST_ADDR = TEST_PATTERN;

    diag_printf("The value '%p' is now written to DRAM at address %p.\n",

           TEST_PATTERN, SDRAM_BATTERY_TEST_ADDR);

    diag_printf("\nYou may now power the board off, wait 60 seconds and power it back on.\n");

    diag_printf("Then come back into the battery test menu and check data in DRAM.\n");

    diag_wait();

}

static void

battery_test_read (MENU_ARG arg)

{

    cyg_uint32 value;

    *IQ80321_BATTERY_STATUS &= ~IQ80321_BATTERY_ENABLE;

    if (*IQ80321_BATTERY_STATUS & IQ80321_BATTERY_ENABLE)

        diag_printf("Unable to disable battery backup.\n");

    else

        diag_printf("The battery backup has now been disabled.\n");

    value = *(volatile unsigned *)SDRAM_BATTERY_TEST_ADDR;

    diag_printf ("Value written at address %p: %p\n",

                 SDRAM_BATTERY_TEST_ADDR, TEST_PATTERN);

    diag_printf ("Value read: %p\n", value);

    if (value == TEST_PATTERN)

        diag_printf ("\nThe battery test is a success !");

    else {

        diag_printf ("\n****************************\n");

        diag_printf ("* The battery test failed. *\n");

        diag_printf ("****************************\n");

    }

    diag_wait();

}

void

battery_test_menu (MENU_ARG arg)

{

    // Test Menu Table

    static MENU_ITEM batteryMenu[] = {

        {"Write data to SDRAM", battery_test_write, NULL},

        {"Check data from SDRAM", battery_test_read, NULL},

    };

    unsigned int num_menu_items = (sizeof (batteryMenu) / sizeof (batteryMenu[0]));

    char *menu_title = "\n Battery Backup SDRAM memory test.";

    diag_printf ("\n*************************************************************************\n");

    diag_printf ("* This test will enable you to perform a battery test in 4 steps:       *\n");

    diag_printf ("*  1/  Select option 1 to write test pattern,                           *\n");

    diag_printf ("*  2/  Power the board off and wait 60 seconds,                         *\n");

    diag_printf ("*  3/  Power the board back on,                                         *\n");

    diag_printf ("*  4/  Select option 2 to read back and compare test pattern            *\n");

    diag_printf ("*************************************************************************");

    menu (batteryMenu, num_menu_items, menu_title, MENU_OPT_NONE);

    diag_printf ("\n");

}

#endif // CYGSEM_HAL_ARM_IQ80321_BATTERY_TEST