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// See LICENSE for license details.
#ifndef SIFIVE_SHARED_H
#define SIFIVE_SHARED_H
#include "uart.h"
#include "gpio.h"
#include "plic.h"
// Some things missing from the official encoding.h
#define MCAUSE_INT 0x80000000
#define MCAUSE_CAUSE 0x7FFFFFFF
/****************************************************************************
* Platform definitions
*****************************************************************************/
#define MTIMECMP_BASE_ADDR 0x44004000UL
#define MTIME_ADDR 0x4400BFF8UL
#define PLIC_BASE_ADDR 0x40000000UL
#define UART_BASE_ADDR 0x48000000UL
#define GPIO_BASE_ADDR 0x48002000UL
#define SPI_BASE_ADDR 0x48001000UL
/****************************************************************************
* Clock Parameters
*****************************************************************************/
#define RTC_PRESCALER 100
#define CLOCK_FREQUENCY 62500000
/****************************************************************************
* GPIO Connections
*****************************************************************************/
// Each of these OFFSETS holds 4 bits.
#define RED_LEDS_OFFSET 0
#define GREEN_LEDS_OFFSET 4
#define BLUE_LEDS_OFFSET 8
#define JA_OUT_OFFSET 12 // JA Pins 1-4 are outputs.
#define BUTTONS_OFFSET 16
#define SWITCHES_OFFSET 20
#define JA_IN_OFFSET 24 // JA Pins 7-10 are inputs.
// reserved input offset 38 // Tied to zero.
/****************************************************************************
* External Interrupts handled by PLIC.
*****************************************************************************/
// Interrupt devices
#define INT_DEVICE_BUTTON_0 1
#define INT_DEVICE_BUTTON_1 2
#define INT_DEVICE_BUTTON_2 3
#define INT_DEVICE_BUTTON_3 4
#define INT_DEVICE_JA_7 5
#define INT_DEVICE_JA_8 6
#define INT_DEVICE_JA_9 7
#define INT_DEVICE_JA_10 8
// Setting these correctly makes the initialization scripts
// run faster.
#define PLIC_NUM_SOURCES 31
#define PLIC_NUM_PRIORITIES 0
void write_hex(int fd, uint32_t hex);
#endif
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