/************************************************************
 * <bsn.cl fy=2014 v=onl>
 *
 *           Copyright 2014 Big Switch Networks, Inc.
 *           Copyright 2017 MiTAC Computing Technology Corporation.
 *
 * Licensed under the Eclipse Public License, Version 1.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 *
 *        http://www.eclipse.org/legal/epl-v10.html
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
 * either express or implied. See the License for the specific
 * language governing permissions and limitations under the
 * License.
 *
 * </bsn.cl>
 ************************************************************
 *
 *
 *
 ***********************************************************/
#include <onlp/platformi/ledi.h>
#include <sys/mman.h>
#include <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <onlplib/mmap.h>

#include "platform_lib.h"

#define prefix_path "/sys/class/leds/mitac_ly1200_b32h0_c3_led::"
#define filename    "brightness"

#define VALIDATE(_id)                           \
    do {                                        \
        if(!ONLP_OID_IS_LED(_id)) {             \
            return ONLP_STATUS_E_INVALID;       \
        }                                       \
    } while(0)

/* LED related data
 */
enum onlp_led_id
{
    LED_RESERVED = 0,
    LED_DIAG,
    LED_LOC,
    LED_FAN,
    LED_PSU1,
    LED_PSU2
};

enum led_light_mode {
    LED_MODE_OFF = 0,
    LED_MODE_GREEN,
    LED_MODE_AMBER,
    LED_MODE_RED,
    LED_MODE_BLUE,
    LED_MODE_GREEN_BLINK,
    LED_MODE_AMBER_BLINK,
    LED_MODE_RED_BLINK,
    LED_MODE_BLUE_BLINK,
    LED_MODE_AUTO,
    LED_MODE_UNKNOWN
};

typedef struct led_light_mode_map {
    enum onlp_led_id id;
    enum led_light_mode driver_led_mode;
    enum onlp_led_mode_e onlp_led_mode;
} led_light_mode_map_t;

led_light_mode_map_t led_map[] = {
{LED_DIAG, LED_MODE_OFF,   ONLP_LED_MODE_OFF},
{LED_DIAG, LED_MODE_GREEN, ONLP_LED_MODE_GREEN},
{LED_DIAG, LED_MODE_AMBER, ONLP_LED_MODE_ORANGE},
{LED_DIAG, LED_MODE_RED,   ONLP_LED_MODE_RED},
{LED_LOC,  LED_MODE_OFF,   ONLP_LED_MODE_OFF},
{LED_LOC,  LED_MODE_BLUE,  ONLP_LED_MODE_BLUE},
{LED_FAN,  LED_MODE_AUTO,  ONLP_LED_MODE_AUTO},
{LED_PSU1, LED_MODE_AUTO,  ONLP_LED_MODE_AUTO},
{LED_PSU2, LED_MODE_AUTO,  ONLP_LED_MODE_AUTO}
};

static char last_path[][10] =  /* must map with onlp_led_id */
{
    "reserved",
    "diag",
    "loc",
    "fan",
    "psu1",
    "psu2"
};

/*
 * Get the information for the given LED OID.
 */
static onlp_led_info_t linfo[] =
{
    { }, /* Not used */
    {
        { ONLP_LED_ID_CREATE(LED_DIAG), "Chassis LED 1 (DIAG LED)", 0 },
        ONLP_LED_STATUS_PRESENT,
        ONLP_LED_CAPS_ON_OFF | ONLP_LED_CAPS_GREEN | ONLP_LED_CAPS_RED | ONLP_LED_CAPS_ORANGE,
    },
    {
        { ONLP_LED_ID_CREATE(LED_LOC), "Chassis LED 2 (LOC LED)", 0 },
        ONLP_LED_STATUS_PRESENT,
        ONLP_LED_CAPS_ON_OFF | ONLP_LED_CAPS_BLUE,
    },
    {
        { ONLP_LED_ID_CREATE(LED_FAN), "Chassis LED 3 (FAN LED)", 0 },
        ONLP_LED_STATUS_PRESENT,
        ONLP_LED_CAPS_AUTO,
    },
    {
        { ONLP_LED_ID_CREATE(LED_PSU1), "Chassis LED 4 (PSU1 LED)", 0 },
        ONLP_LED_STATUS_PRESENT,
        ONLP_LED_CAPS_AUTO,
    },
    {
        { ONLP_LED_ID_CREATE(LED_PSU2), "Chassis LED 4 (PSU2 LED)", 0 },
        ONLP_LED_STATUS_PRESENT,
        ONLP_LED_CAPS_AUTO,
    },
};

static int driver_to_onlp_led_mode(enum onlp_led_id id, enum led_light_mode driver_led_mode)
{
    int i, nsize = sizeof(led_map)/sizeof(led_map[0]);

    for (i = 0; i < nsize; i++)
    {
        if (id == led_map[i].id && driver_led_mode == led_map[i].driver_led_mode)
        {
            return led_map[i].onlp_led_mode;
        }
    }

    return 0;
}

static int onlp_to_driver_led_mode(enum onlp_led_id id, onlp_led_mode_t onlp_led_mode)
{
    int i, nsize = sizeof(led_map)/sizeof(led_map[0]);

    for(i = 0; i < nsize; i++)
    {
        if (id == led_map[i].id && onlp_led_mode == led_map[i].onlp_led_mode)
        {
            return led_map[i].driver_led_mode;
        }
    }

    return 0;
}

/*
 * This function will be called prior to any other onlp_ledi_* functions.
 */
int
onlp_ledi_init(void)
{
    // FIXME: WARNING FREEZE
    if ( 0 ) {
        printf("%s\t%d", last_path[0], linfo[0].status);
        driver_to_onlp_led_mode(LED_RESERVED, LED_MODE_AUTO);
        onlp_to_driver_led_mode(LED_RESERVED, ONLP_LED_MODE_BLINKING);
    }
    // END WARNING FREEZE
    //printf("Hello, this is %s() in %s.\n", __func__, __FILE__);
    return ONLP_STATUS_OK;
}

int
onlp_ledi_info_get(onlp_oid_t id, onlp_led_info_t* info)
{
    return ONLP_STATUS_OK;
}

/*
 * Turn an LED on or off.
 *
 * This function will only be called if the LED OID supports the ONOFF
 * capability.
 *
 * What 'on' means in terms of colors or modes for multimode LEDs is
 * up to the platform to decide. This is intended as baseline toggle mechanism.
 */
int
onlp_ledi_set(onlp_oid_t id, int on_or_off)
{
    return ONLP_STATUS_E_UNSUPPORTED;
}

/*
 * This function puts the LED into the given mode. It is a more functional
 * interface for multimode LEDs.
 *
 * Only modes reported in the LED's capabilities will be attempted.
 */
int
onlp_ledi_mode_set(onlp_oid_t id, onlp_led_mode_t mode)
{
    return ONLP_STATUS_OK;
}

/*
 * Generic LED ioctl interface.
 */
int
onlp_ledi_ioctl(onlp_oid_t id, va_list vargs)
{
    return ONLP_STATUS_E_UNSUPPORTED;
}

/*
 * Additional Functions
 */
int
onlp_ledi_status_get(onlp_oid_t id, uint32_t* rv)
{
    return ONLP_STATUS_E_UNSUPPORTED;
}

int
onlp_ledi_hdr_get(onlp_oid_t id, onlp_oid_hdr_t* rv)
{
    return ONLP_STATUS_E_UNSUPPORTED;
}

int
onlp_ledi_char_set(onlp_oid_t id, char c)
{
    return ONLP_STATUS_E_UNSUPPORTED;
}

