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/*
 * cleopatre/application/managerd/inc/led.h
 *
 * (C) Copyright 2010 SPiDCOM Technologies
     *
 * 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
 */
#ifndef LED_H
#define LED_H

#include "../../linux/autoconf.h"

struct managerd_ctx;

/** LED GPIO numbers */
#define LED_ATTACHMENT_GPIO_NUM 3
#if (defined CONFIG_MACH_SPK300G || defined CONFIG_MACH_SPK300)
#  define LED1_GPIO_NUM 13
#  define LED2_GPIO_NUM 12
#endif

/** Blinking timers */
#define LED_FAST_TIMER_US   100000
#define LED_LOW_TIMER_US    500000

/**
 * Handle SIGALRM reception.
 *
 * \param  signal_nb  signal identifier
 */
void
led_signal_handler (int signal_nb);

/**
 * When timer expires, this function is called to invert current value of LED,
 * in order to make it blink.
 */
void
led_flashing (void);

/**
 * LED attachment event.
 *
 * \param  ctx  managerd context
 * \param  status  current status value from hpav.info
 * \param  is_sc  current Simple Connect value from hpav.info
 * \return  error code
 */
int
led_attachment_event (struct managerd_ctx *ctx, const char *status,
                      libspid_boolean_t is_sc);

/**
 * LED1 event.
 *
 * \param  ctx  managerd context
  * \param  cco  current CCo value from hpav.info
 * \return  error code
 */
int
led1_event (struct managerd_ctx *ctx, const char *cco);

/**
 * LED2 event.
 *
 * \param  ctx  managerd context
  * \param  is_backup_cco  current backup CCo value from hpav.info
 * \return  error code
 */
int
led2_event (struct managerd_ctx *ctx, libspid_boolean_t is_backup_cco);

/**
 * Initialize LED-s: set GPIO direction and value.
 *
 * \param  ctx  managerd context
 * \return  error code
 */
int
led_init (struct managerd_ctx *ctx);

/**
 * Uninitialize LED-s: reset GPIO value.
 *
 * \param  ctx  managerd context
 */
void
led_uninit (struct managerd_ctx *ctx);

#endif /* LED_H */