#ifndef Pins_Arduino_h
#define Pins_Arduino_h

#include <stdint.h>

#define USB_VID 0x303a
#define USB_PID 0x1001

#define EXTERNAL_NUM_INTERRUPTS 46
#define NUM_DIGITAL_PINS        48
#define NUM_ANALOG_INPUTS       20

#define analogInputToDigitalPin(p)  (((p)<20)?(analogChannelToDigitalPin(p)):-1)
#define digitalPinToInterrupt(p)    (((p)<48)?(p):-1)
#define digitalPinHasPWM(p)         (p < 46)

static const uint8_t TX = 43;
static const uint8_t RX = 44;

static const uint8_t SDA = 45;
static const uint8_t SCL = 46;

static const uint8_t SS    = 34;
static const uint8_t MOSI  = 35;
static const uint8_t MISO  = 37;
static const uint8_t SCK   = 36;

static const uint8_t A0 = 1;
static const uint8_t A1 = 2;
static const uint8_t A2 = 3;

static const uint8_t T3 = 3;

// SDCARD Slot
#define BOARD_HAS_SDMMC
#define SDMMC_D2     33 // SDMMC Data2
#define SDMMC_D3     34 // SDMMC Data3 / SPI CS
#define SDMMC_CMD    35 // SDMMC CMD   / SPI MOSI
#define SDMMC_CLK    36 // SDMMC CLK   / SPI SCK
#define SDMMC_D0     37 // SDMMC Data0 / SPI MISO
#define SDMMC_D1     38 // SDMMC Data1
#define BOARD_MAX_SDMMC_FREQ SDMMC_FREQ_DEFAULT

// 240x240 LCD
#define BOARD_HAS_SPI_LCD
#define LCD_MODEL  ST7789
#define LCD_WIDTH	240
#define LCD_HEIGHT	240 // *RAM height is actually 320!
#define LCD_MISO     -1 // LCD Does not use MISO.
#define LCD_DC        4 // Used to switch data and command status.
#define LCD_CS        5 // used to enable LCD, low level to enable.
#define LCD_CLK       6 // LCD SPI Clock.
#define LCD_MOSI      7 // LCD SPI MOSI.
#define LCD_RST       8 // used to reset LCD, low level to reset.
#define LCD_BL        9 // LCD backlight control.

// Buttons
#define BUTTON_OK     0 // OK button, low level when pressed.
#define BUTTON_UP    10 // UP button, low level when pressed.
#define BUTTON_DOWN  11 // Down button, low level when pressed.
#define BUTTON_MENU  14 // Menu button, low level when pressed.

// LEDs
#define LED_GREEN    15 // the light is lit when set high level.
#define LED_YELLOW   16 // the light is lit when set high level.

// Board Controls
#define DEV_VBUS_EN  12 // High level to enable DEV_VBUS power supply.
#define BOOST_EN     13 // High level to enable Battery Boost circuit.
#define LIMIT_EN     17 // Enable USB_HOST current limiting IC, high level enable.
#define USB_HOST_EN  18 // Used to switch the USB interface. When high level, the USB_HOST interface is enabled. When low level, the USB_DEV interface is enabled.

// Board Sensors
#define OVER_CURRENT 21 // Current overrun signal, high level means overrun.
#define HOST_VOLTS    1 // USB_DEV voltage monitoring, ADC1 channel 0. actual_v = value_v * 3.7
#define BAT_VOLTS     2 // Battery voltage monitoring, ADC1 channel 1. actual_v = value_v * 2

// USB Port
#define USB_DN       19 // USB D-
#define USB_DP       20 // USB D+

// Bottom header
#define MTCK         39
#define MTDO         40
#define MTDI         41
#define MTMS         42
// #define FREE_6        3 // Idle, can be customized.
// #define FREE_4       26 // Idle, can be customized.
// #define FREE_1       45 // Idle, can be customized.
// #define FREE_2       46 // Idle, can be customized.
// #define FREE_5       47 // Idle, can be customized.
// #define FREE_3       48 // Idle, can be customized.

typedef enum { USB_HOST_POWER_OFF, USB_HOST_POWER_VBUS, USB_HOST_POWER_BAT } UsbHostPower_t;
void usbHostPower(UsbHostPower_t mode);
void usbHostEnable(bool enable);

#endif /* Pins_Arduino_h */