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/** LoBo
 *  @function :     ForceFactoryBoot
 *  @description:   Add by Imtiaz @ Syrp for failsafe mode
 *
 *  @inputs:        void
 */
const uint32_t GPIO_PIN_MUX_REG[GPIO_PIN_COUNT] = {
    IO_MUX_GPIO0_REG,
    IO_MUX_GPIO1_REG,
    IO_MUX_GPIO2_REG,
    IO_MUX_GPIO3_REG,
    IO_MUX_GPIO4_REG,
    IO_MUX_GPIO5_REG,
    IO_MUX_GPIO6_REG,
    IO_MUX_GPIO7_REG,
    IO_MUX_GPIO8_REG,
    IO_MUX_GPIO9_REG,
    IO_MUX_GPIO10_REG,
    IO_MUX_GPIO11_REG,
    IO_MUX_GPIO12_REG,
    IO_MUX_GPIO13_REG,
    IO_MUX_GPIO14_REG,
    IO_MUX_GPIO15_REG,
    IO_MUX_GPIO16_REG,
    IO_MUX_GPIO17_REG,
    IO_MUX_GPIO18_REG,
    IO_MUX_GPIO19_REG,
    0,
    IO_MUX_GPIO21_REG,
    IO_MUX_GPIO22_REG,
    IO_MUX_GPIO23_REG,
    0,
    IO_MUX_GPIO25_REG,
    IO_MUX_GPIO26_REG,
    IO_MUX_GPIO27_REG,
    0,
    0,
    0,
    0,
    IO_MUX_GPIO32_REG,
    IO_MUX_GPIO33_REG,
    IO_MUX_GPIO34_REG,
    IO_MUX_GPIO35_REG,
    IO_MUX_GPIO36_REG,
    IO_MUX_GPIO37_REG,
    IO_MUX_GPIO38_REG,
    IO_MUX_GPIO39_REG,
};

static uint8_t ForceFactoryBoot(void)
{
    #if CONFIG_GPIO_INPUT_FORCE_FACTORY
    uint8_t timer = 0;
    uint32_t mux_reg = GPIO_PIN_MUX_REG[CONFIG_GPIO_PIN_FORCE_FACTORY];
    if (mux_reg == 0) return 0;

    /*if (CONFIG_GPIO_PIN_FORCE_FACTORY < 28)*/ gpio_pad_select_gpio(CONFIG_GPIO_PIN_FORCE_FACTORY);
    //output disable
    if (CONFIG_GPIO_PIN_FORCE_FACTORY < 32) gpio_output_set(0,0,0, 1<<CONFIG_GPIO_PIN_FORCE_FACTORY);
    else gpio_output_set_high(0,0,0, 1<<(CONFIG_GPIO_PIN_FORCE_FACTORY-32));
    // Enable input
    PIN_INPUT_ENABLE(mux_reg);

    ets_delay_us(10000); //delay 10 msecs

    ESP_LOGI(TAG, "Check force Factory boot Pin %d for level %d [current=%d]",
             CONFIG_GPIO_PIN_FORCE_FACTORY, CONFIG_GPIO_LEVEL_FORCE_FACTORY, GPIO_INPUT_GET(CONFIG_GPIO_PIN_FORCE_FACTORY));
    while (GPIO_INPUT_GET(CONFIG_GPIO_PIN_FORCE_FACTORY) == CONFIG_GPIO_LEVEL_FORCE_FACTORY) {
        if ((timer % 5) == 0) {
            ESP_LOGE(TAG, "Force Factory boot Pin is Active!");
        }
        ets_delay_us(100000); // wait 100 ms
        timer++;
        if (timer == 30) {
            ESP_LOGE(TAG, "Forcing boot to Factory partition");
            return 1;
        }
    }
    ESP_LOGW(TAG, "Normal boot");
    #endif
    return 0;
}

/* Return the index of the selected boot partition.

   This is the preferred boot partition, as determined by the partition table &
   any OTA sequence number found in OTA data.

   This partition will only be booted if it contains a valid app image, otherwise load_boot_image() will search
   for a valid partition using this selection as the starting point.
*/
static int get_selected_boot_partition(const bootloader_state_t *bs)
{
    esp_ota_select_entry_t sa,sb;
    const esp_ota_select_entry_t *ota_select_map;

    if (bs->ota_info.offset != 0 && !ForceFactoryBoot()) { // LoBo
        // partition table has OTA data partition

Code: Select all

    config GPIO_PIN_FORCE_FACTORY
        int "GPIO to force boot from Factory partition"
    	depends on GPIO_INPUT_FORCE_FACTORY
        range 0 39
        default 0
        help
        Set GPIO pin to be used to force boot from Factory partition

    config GPIO_LEVEL_FORCE_FACTORY
    	depends on GPIO_INPUT_FORCE_FACTORY
        int "GPIO level to force boot from Factory partition"
        range 0 1
        default 0
        help
        Set GPIO pin level to force boot from Factory partition

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/**
 *  @function :     bootloader_main
 *  @description:   entry function of 2nd bootloader
 *
 *  @inputs:        void
 */

void bootloader_main()
{
    vddsdio_configure();
    flash_gpio_configure();
    bootloader_clock_configure();
    uart_console_configure();
    wdt_reset_check();

    #if CONFIG_BOOT_SET_LED >= 0
    gpio_pad_select_gpio(CONFIG_BOOT_SET_LED);
    if (CONFIG_BOOT_SET_LED < 32) gpio_output_set(CONFIG_BOOT_LED_ON << CONFIG_BOOT_SET_LED, (CONFIG_BOOT_LED_ON ? 0 : 1) << CONFIG_BOOT_SET_LED, 1<<CONFIG_BOOT_SET_LED,0);
    else gpio_output_set_high(CONFIG_BOOT_LED_ON << (CONFIG_BOOT_SET_LED-32), (CONFIG_BOOT_LED_ON ? 0 : 1) << (CONFIG_BOOT_SET_LED-32), 1<<(CONFIG_BOOT_SET_LED-32),0);
    ESP_LOGI(TAG, "BOOT LED set to %d", CONFIG_BOOT_LED_ON);
    #endif

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    config BOOT_SET_LED
        int "Activate LED (gpio) on boot"
        range -1 33
        default -1
        help
        Set to GPIO pin to use as LED indication during boot
        not used if set to -1

    config BOOT_LED_ON
    	depends on BOOT_SET_LED >= 0
        int "Set boot LED On level"
        range 0 1
        default 0
        help
        Set to GPIO pin level for boot LED On state

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# Name,   Type, SubType, Offset,   Size
nvs,      data, nvs,     0x9000,  0x4000
otadata,  data, ota,     0xd000,  0x2000
phy_init, data, phy,     0xf000,  0x1000
factory,  app,  factory, 0x10000,  512K
[color=#FF0000]test, app, test, 0x90000, 512K[/color]
ota_0,    app,  ota_0,   ,         1M
ota_1,    app,  ota_1,   ,         1M