// +build nucleof103rb

package machine

import (
	"device/stm32"
	"runtime/interrupt"
)

const (
	PA0  = portA + 0
	PA1  = portA + 1
	PA2  = portA + 2
	PA3  = portA + 3
	PA4  = portA + 4
	PA5  = portA + 5
	PA6  = portA + 6
	PA7  = portA + 7
	PA8  = portA + 8
	PA9  = portA + 9
	PA10 = portA + 10
	PA11 = portA + 11
	PA12 = portA + 12
	PA13 = portA + 13
	PA14 = portA + 14
	PA15 = portA + 15

	PB0  = portB + 0
	PB1  = portB + 1
	PB2  = portB + 2
	PB3  = portB + 3
	PB4  = portB + 4
	PB5  = portB + 5
	PB6  = portB + 6
	PB7  = portB + 7
	PB8  = portB + 8
	PB9  = portB + 9
	PB10 = portB + 10
	PB11 = portB + 11
	PB12 = portB + 12
	PB13 = portB + 13
	PB14 = portB + 14
	PB15 = portB + 15

	PC0  = portC + 0
	PC1  = portC + 1
	PC2  = portC + 2
	PC3  = portC + 3
	PC4  = portC + 4
	PC5  = portC + 5
	PC6  = portC + 6
	PC7  = portC + 7
	PC8  = portC + 8
	PC9  = portC + 9
	PC10 = portC + 10
	PC11 = portC + 11
	PC12 = portC + 12
	PC13 = portC + 13
	PC14 = portC + 14
	PC15 = portC + 15

	PD0  = portD + 0
	PD1  = portD + 1
	PD2  = portD + 2
	PD3  = portD + 3
	PD4  = portD + 4
	PD5  = portD + 5
	PD6  = portD + 6
	PD7  = portD + 7
	PD8  = portD + 8
	PD9  = portD + 9
	PD10 = portD + 10
	PD11 = portD + 11
	PD12 = portD + 12
	PD13 = portD + 13
	PD14 = portD + 14
	PD15 = portD + 15
)

const (
	LED         = LED_BUILTIN
	LED_BUILTIN = LED_GREEN
	LED_GREEN   = PA5
)

const (
	BUTTON      = BUTTON_USER
	BUTTON_USER = PC13
)

// UART pins
const (
	UART_TX_PIN     = PA2
	UART_RX_PIN     = PA3
	UART_ALT_TX_PIN = PD5
	UART_ALT_RX_PIN = PD6
)

var (
	// USART2 is the hardware serial port connected to the onboard ST-LINK
	// debugger to be exposed as virtual COM port over USB on Nucleo boards.
	// Both UART0 and UART1 refer to USART2.
	UART0 = UART{
		Buffer: NewRingBuffer(),
		Bus:    stm32.USART2,
	}
	UART2 = &UART0
)

func init() {
	UART0.Interrupt = interrupt.New(stm32.IRQ_USART2, UART0.handleInterrupt)
}

// SPI pins
const (
	SPI0_SCK_PIN = PA5
	SPI0_SDI_PIN = PA6
	SPI0_SDO_PIN = PA7
)

// I2C pins
const (
	SCL_PIN = PB6
	SDA_PIN = PB7
)