/**
 * @brief This test has just run in the ESP32_Ethernet_V3 board, which featured
 * in PoE submodule and TLK110 PHY. The 50MHz clock used by MAC and PHY is
 * supplied by external oscillator through GPIO0.
 *
 * @file test_emac_deinit.c
 * @author morris
 * @date 2018-08-24
 */
#include <stdio.h>
#include <string.h>

#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/event_groups.h"
#include "esp_system.h"
#include "esp_err.h"
#include "esp_event_loop.h"
#include "esp_event.h"
#include "esp_log.h"
#include "esp_eth.h"
#include "unity.h"

#include "rom/gpio.h"

#include "tcpip_adapter.h"
#include "driver/gpio.h"
#include "driver/periph_ctrl.h"

#include "eth_phy/phy_tlk110.h"

#define DEFAULT_ETHERNET_PHY_CONFIG phy_tlk110_default_ethernet_config

static const char *TAG = "eth_test_deinit";

#define PIN_PHY_POWER 17
#define PIN_SMI_MDC 23
#define PIN_SMI_MDIO 18
#define CONFIG_PHY_ADDRESS 31
#define CONFIG_PHY_CLOCK_MODE 0

static EventGroupHandle_t eth_event_group = NULL;
static const int GOTIP_BIT = BIT0;

static void phy_device_power_enable_via_gpio(bool enable)
{
    if (!enable) {
        DEFAULT_ETHERNET_PHY_CONFIG.phy_power_enable(false);
    }

    gpio_pad_select_gpio(PIN_PHY_POWER);
    gpio_set_direction(PIN_PHY_POWER, GPIO_MODE_OUTPUT);
    if (enable == true) {
        gpio_set_level(PIN_PHY_POWER, 1);
        ESP_LOGI(TAG, "power on ethernet phy");
    } else {
        gpio_set_level(PIN_PHY_POWER, 0);
        ESP_LOGI(TAG, "power off ethernet phy");
    }

    vTaskDelay(1); // Allow the power up/down to take effect, min 300us

    if (enable) {
        /* operates the default phy-specific power on function */
        DEFAULT_ETHERNET_PHY_CONFIG.phy_power_enable(true);
    }
}

static void eth_gpio_config_rmii(void)
{
    phy_rmii_configure_data_interface_pins();
    phy_rmii_smi_configure_pins(PIN_SMI_MDC, PIN_SMI_MDIO);
}

static esp_err_t eth_event_handler(void *ctx, system_event_t *event)
{
    tcpip_adapter_ip_info_t ip;

    switch (event->event_id) {
    case SYSTEM_EVENT_ETH_CONNECTED:
        ESP_LOGI(TAG, "Ethernet Link Up");
        break;
    case SYSTEM_EVENT_ETH_DISCONNECTED:
        ESP_LOGI(TAG, "Ethernet Link Down");
        break;
    case SYSTEM_EVENT_ETH_START:
        ESP_LOGI(TAG, "Ethernet Started");
        break;
    case SYSTEM_EVENT_ETH_GOT_IP:
        memset(&ip, 0, sizeof(tcpip_adapter_ip_info_t));
        ESP_ERROR_CHECK(tcpip_adapter_get_ip_info(ESP_IF_ETH, &ip));
        ESP_LOGI(TAG, "Ethernet Got IP Addr");
        ESP_LOGI(TAG, "~~~~~~~~~~~");
        ESP_LOGI(TAG, "ETHIP:" IPSTR, IP2STR(&ip.ip));
        ESP_LOGI(TAG, "ETHMASK:" IPSTR, IP2STR(&ip.netmask));
        ESP_LOGI(TAG, "ETHGW:" IPSTR, IP2STR(&ip.gw));
        ESP_LOGI(TAG, "~~~~~~~~~~~");
        xEventGroupSetBits(eth_event_group, GOTIP_BIT);
        break;
    case SYSTEM_EVENT_ETH_STOP:
        ESP_LOGI(TAG, "Ethernet Stopped");
        break;
    default:
        break;
    }
    return ESP_OK;
}

TEST_CASE("start event loop", "[ethernet][ignore]")
{
    eth_event_group = xEventGroupCreate();
    tcpip_adapter_init();
    ESP_ERROR_CHECK(esp_event_loop_init(eth_event_handler, NULL));
}

TEST_CASE("test emac deinit", "[ethernet][ignore]")
{
    eth_config_t config = DEFAULT_ETHERNET_PHY_CONFIG;
    config.phy_addr = CONFIG_PHY_ADDRESS;
    config.gpio_config = eth_gpio_config_rmii;
    config.tcpip_input = tcpip_adapter_eth_input;
    config.clock_mode = CONFIG_PHY_CLOCK_MODE;
    config.phy_power_enable = phy_device_power_enable_via_gpio;

    ESP_ERROR_CHECK(esp_eth_init(&config));
    ESP_ERROR_CHECK(esp_eth_enable());

    xEventGroupWaitBits(eth_event_group, GOTIP_BIT, true, true, portMAX_DELAY);
    vTaskDelay(15000 / portTICK_RATE_MS);

    ESP_ERROR_CHECK(esp_eth_disable());
    ESP_ERROR_CHECK(esp_eth_deinit());
}