pios_annunc.c

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/* 
 * 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 3 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, see <http://www.gnu.org/licenses/>
 */


/* Project Includes */
#include "pios.h"
#include "openpilot.h"
#include "hwsimulation.h"

#if defined(PIOS_INCLUDE_ANNUNC)

/* Private Function Prototypes */

DONT_BUILD_IF(PIOS_ANNUNC_NUM < HWSIMULATION_LEDSTATE_NUMELEM, piosLedNumWrong);
DONT_BUILD_IF(PIOS_LED_ALARM != HWSIMULATION_LEDSTATE_ALARM, idxMismatch1);
DONT_BUILD_IF(PIOS_LED_HEARTBEAT != HWSIMULATION_LEDSTATE_HEARTBEAT, idxMismatch2);

/* Local Variables */
static uint8_t ledState[PIOS_ANNUNC_NUM];

static inline void set_led(uint32_t led, uint8_t stat) {
        PIOS_Assert(led < PIOS_ANNUNC_NUM);

        uint8_t old_state = ledState[led];
        uint8_t new_state = stat ? HWSIMULATION_LEDSTATE_ON : HWSIMULATION_LEDSTATE_OFF;

        if (old_state == new_state)
                return;
        ledState[led] = new_state;

        HwSimulationLedStateSet(ledState);

#if 0
        char leds[PIOS_ANNUNC_NUM + 1];
        for (int i = 0; i < HWSIMULATION_LEDSTATE_NUMELEM; i++) {
                leds[i] = (ledState[i] == HWSIMULATION_LEDSTATE_ON) ? '*' : '.';
        }
        leds[PIOS_ANNUNC_NUM] = '\0';
        printf("LEDS\t%d\t%d\t%s\n", PIOS_Thread_Systime(),
                        PIOS_DELAY_GetRaw(), leds);
#endif
}

void PIOS_ANNUNC_Init(void)
{
}

bool PIOS_ANNUNC_GetStatus(uint32_t led)
{
        PIOS_Assert(led < PIOS_ANNUNC_NUM);

        return ledState[led] == HWSIMULATION_LEDSTATE_ON;
}

void PIOS_ANNUNC_On(uint32_t led)
{
        set_led(led, 1);
}


void PIOS_ANNUNC_Off(uint32_t led)
{
        set_led(led, 0);
}


void PIOS_ANNUNC_Toggle(uint32_t led)
{
        PIOS_Assert(led < PIOS_ANNUNC_NUM);

        set_led(led, !PIOS_ANNUNC_GetStatus(led));
}

#endif