source: svn/newcon3bcm2_21bu/nexus/app/led.c @ 76

/***************************************************************************
 *     Copyright (c) 2003-2008, Broadcom Corporation
 *     All Rights Reserved
 *     Confidential Property of Broadcom Corporation
 *
 *  THIS SOFTWARE MAY ONLY BE USED SUBJECT TO AN EXECUTED SOFTWARE LICENSE
 *  AGREEMENT  BETWEEN THE USER AND BROADCOM.  YOU HAVE NO RIGHT TO USE OR
 *  EXPLOIT THIS MATERIAL EXCEPT SUBJECT TO THE TERMS OF SUCH AN AGREEMENT.
 *
 * $brcm_Workfile: $
 * $brcm_Revision: $
 * $brcm_Date: $
 *
 * Module Description:
 *
 * Revision History:
 *
 * $brcm_Log: $
 * 
 *
 ***************************************************************************/

#include "led.h"

#include "bapp_util.h"
#include "bapp_task.h"
#include "bstd.h"
#include "bdbg.h"

#define LED_ON(ms) (0x80000000 | (ms))
#define LED_OFF(ms) (0x7FFFFFFF & (ms))
#define IS_LED_ON(x) (0 != (0x80000000 & (x)))
#define END_OF_SEQ 0xFFFFFFFF

unsigned on_sequence[2] = {
    LED_ON(0),
    END_OF_SEQ
};

unsigned off_sequence[2] = {
    LED_OFF(0),
    END_OF_SEQ
};

unsigned hunt_sequence[3] = {
    LED_ON(1000),
    LED_OFF(1000),
    END_OF_SEQ
};

unsigned pending_sequence[5] = {
    LED_ON(250),
    LED_OFF(300),
    LED_ON(250),
    LED_OFF(1200),
    END_OF_SEQ
};

unsigned download_sequence[7] = {
    LED_ON(200),
    LED_OFF(300),
    LED_ON(200),
    LED_OFF(300),
    LED_ON(200),
    LED_OFF(1800),
    END_OF_SEQ
};

unsigned trouble_sequence[3] = {
    LED_ON(500),
    LED_OFF(500),
    END_OF_SEQ
};

unsigned authorization_sequence[11] = {
    LED_ON(4280),
    LED_OFF(80),
    LED_ON(80),
    LED_OFF(80),
    LED_ON(80),
    LED_OFF(80),
    LED_ON(80),
    LED_OFF(80),
    LED_ON(80),
    LED_OFF(80),
    END_OF_SEQ
};

struct led_state_t {
    enum led_mode_t mode;
    unsigned * sequence;
    unsigned seq_index;
    unsigned time_remains;
};

static struct led_state_t led_state = {led_off_mode, off_sequence, 0,0};

static void led_control(bool on);

unsigned led_set_mode(enum led_mode_t mode)
{
    led_state.mode = mode;
    led_state.seq_index = 0;
    switch(led_state.mode){
    case led_off_mode:
        led_state.sequence = off_sequence;
        break;
    case led_hunt_mode:
        led_state.sequence = hunt_sequence;
        break;
    case led_pending_init_mode:
        led_state.sequence = pending_sequence;
        break;
    case led_download_mode:
        led_state.sequence = download_sequence;
        break;
    case led_trouble_mode:
        led_state.sequence = trouble_sequence;
        break;
    case led_on_mode:
        led_state.sequence = on_sequence;
        break;
    case led_authorization_mode:
        led_state.sequence = authorization_sequence;
        break;
    default:
        BDBG_ASSERT(0);
        break;
    }
    led_state.time_remains = LED_OFF(led_state.sequence[led_state.seq_index]);
    led_control(IS_LED_ON(led_state.sequence[led_state.seq_index]));
    return led_state.time_remains;
}

unsigned led_update(unsigned elapsed_time)
{
    if(elapsed_time > led_state.time_remains){
        led_state.time_remains = 0;
    }else{
        led_state.time_remains -= elapsed_time;
    }
    
    if(0 == led_state.time_remains){
        ++led_state.seq_index;
        if(END_OF_SEQ == led_state.sequence[led_state.seq_index]){
            led_state.seq_index = 0; /* restart seq */
        }
        led_state.time_remains = LED_OFF(led_state.sequence[led_state.seq_index]);
        led_control(IS_LED_ON(led_state.sequence[led_state.seq_index]));
    }
    return led_state.time_remains;
}

void led_control(bool on)
{
#if 0
    unsigned value;
    value = ReadReg32(LED_DATA_REG);
    if(true == on){
        value |= LED_GREEN_MASK;
    }else{
        value &= ~LED_GREEN_MASK;
    }
    WriteReg32(LED_DATA_REG, value);
#endif
}