#ifndef SYMBOLS_H
#define SYMBOLS_H

enum
{
	// The offset for the MMIO area
#ifdef BSP23
	MMIO_BASE = 0x3F000000, // For Raspberry Pi 2 and 3
#else
	MMIO_BASE = 0xFE000000,
#endif

	// The offsets for reach register.
	GPIO_BASE = (MMIO_BASE + 0x200000),

	UART_FIFO_18 = 0,
	UART_FIFO_14 = 1,
	UART_FIFO_12 = 2,
	UART_FIFO_34 = 3,
	UART_FIFO_78 = 4,

	//// The base address for UART.
	UART0_BASE = (GPIO_BASE + 0x1000), // for raspi4 0xFE201000, raspi2 & 3 0x3F201000, and 0x20201000 for raspi1

	// The offsets for reach register for the UART.
	UART0_DR     = (UART0_BASE + 0x00),
	UART0_RSRECR = (UART0_BASE + 0x04),
	UART0_FR     = (UART0_BASE + 0x18),
	UART0_ILPR   = (UART0_BASE + 0x20),
	UART0_IBRD   = (UART0_BASE + 0x24),
	UART0_FBRD   = (UART0_BASE + 0x28),
	UART0_LCRH   = (UART0_BASE + 0x2C),
	UART0_CR     = (UART0_BASE + 0x30),
	UART0_IFLS   = (UART0_BASE + 0x34),
	UART0_IMSC   = (UART0_BASE + 0x38),
	UART0_RIS    = (UART0_BASE + 0x3C),
	UART0_MIS    = (UART0_BASE + 0x40),
	UART0_ICR    = (UART0_BASE + 0x44),
	UART0_DMACR  = (UART0_BASE + 0x48),
	UART0_ITCR   = (UART0_BASE + 0x80),
	UART0_ITIP   = (UART0_BASE + 0x84),
	UART0_ITOP   = (UART0_BASE + 0x88),
	UART0_TDR    = (UART0_BASE + 0x8C),

	// IRQ REGISTERS
	IRQ_BASE          = (MMIO_BASE + 0xB000),
	IRQ_BASIC_PENDING = (IRQ_BASE + 0x200),
	IRQ_PENDING1      = (IRQ_BASE + 0x204),
	IRQ_PENDING2      = (IRQ_BASE + 0x208),
	FIQ_CONTROL       = (IRQ_BASE + 0x20C),
	IRQ_ENABLE1       = (IRQ_BASE + 0x210),
	IRQ_ENABLE2       = (IRQ_BASE + 0x214),
	IRQ_BASIC_ENABLE  = (IRQ_BASE + 0x218),
	IRQ_DISABLE1      = (IRQ_BASE + 0x21C),
	IRQ_DISABLE2      = (IRQ_BASE + 0x220),
	IRQ_BASIC_DISABLE = (IRQ_BASE + 0x224),

	// Peripherals Interrupts
	UART_0_IRQ   = 57,
	GPIO_IRQ_0 = 49,
	GPIO_IRQ_1 = 50,
	GPIO_IRQ_2 = 51,
	GPIO_IRQ_3 = 52,

	FIQ_ENABLE_FLAG = 1<<7,

	// ARM Peripheral Interrupts
	TIMER_ARM_IRQ     = 0,
	MAILBOX_ARM_IRQ   = 1,
	DOORBELL0_ARM_IRQ = 2,
	DOORBELL1_ARM_IRQ = 3,
	GPU0HALT_ARM_IRQ  = 4,
	GPU1HALT_ARM_IRQ  = 5,

	// The offsets for Mailbox registers
	MBOX_BASE    = 0xB880,
	MBOX_READ    = (MBOX_BASE + 0x00),
	MBOX_STATUS  = (MBOX_BASE + 0x18),
	MBOX_WRITE   = (MBOX_BASE + 0x20),

	GPU_INTERRUPTS_ROUTING = 0x4000000C,

	CORE0_TIMER_IRQCNTL = 0x40000040,
	CORE1_TIMER_IRQCNTL = 0x40000044,
	CORE2_TIMER_IRQCNTL = 0x40000048,
	CORE3_TIMER_IRQCNTL = 0x4000004c,
	CORE0_MBOX_IRQCNTL  = 0x40000050,
	CORE1_MBOX_IRQCNTL  = 0x40000054,
	CORE2_MBOX_IRQCNTL  = 0x40000058,
	CORE3_MBOX_IRQCNTL  = 0x4000005c,
	CORE0_IRQ_SOURCE    = 0x40000060,
	CORE1_IRQ_SOURCE    = 0x40000064,
	CORE2_IRQ_SOURCE    = 0x40000068,
	CORE3_IRQ_SOURCE    = 0x4000006c,
	CORE0_FIQ_SOURCE    = 0x40000070,
	CORE1_FIQ_SOURCE    = 0x40000074,
	CORE2_FIQ_SOURCE    = 0x40000078,
	CORE3_FIQ_SOURCE    = 0x4000007c,

	SYS_TIMER_CS    = (MMIO_BASE + 0x3000),
	SYS_TIMER_CHI   = (MMIO_BASE + 0x3004),
	SYS_TIMER_CLO   = (MMIO_BASE + 0x3008),
	SYS_TIMER_C0    = (MMIO_BASE + 0x300c),
	SYS_TIMER_C1    = (MMIO_BASE + 0x3010),
	SYS_TIMER_C2    = (MMIO_BASE + 0x3014),
	SYS_TIMER_C3    = (MMIO_BASE + 0x3018),
	SYS_TIMER_SC_M0 = (1 << 0),
	SYS_TIMER_SC_M1 = (1 << 1),
	SYS_TIMER_SC_M2 = (1 << 2),
	SYS_TIMER_SC_M3 = (1 << 3),
};

#define GPFSEL0         ((volatile unsigned int*)(MMIO_BASE+0x00200000))
#define GPFSEL1         ((volatile unsigned int*)(MMIO_BASE+0x00200004))
#define GPFSEL2         ((volatile unsigned int*)(MMIO_BASE+0x00200008))
#define GPFSEL3         ((volatile unsigned int*)(MMIO_BASE+0x0020000C))
#define GPFSEL4         ((volatile unsigned int*)(MMIO_BASE+0x00200010))
#define GPFSEL5         ((volatile unsigned int*)(MMIO_BASE+0x00200014))
#define GPSET0          ((volatile unsigned int*)(MMIO_BASE+0x0020001C))
#define GPSET1          ((volatile unsigned int*)(MMIO_BASE+0x00200020))
#define GPCLR0          ((volatile unsigned int*)(MMIO_BASE+0x00200028))
#define GPLEV0          ((volatile unsigned int*)(MMIO_BASE+0x00200034))
#define GPLEV1          ((volatile unsigned int*)(MMIO_BASE+0x00200038))
#define GPEDS0          ((volatile unsigned int*)(MMIO_BASE+0x00200040))
#define GPEDS1          ((volatile unsigned int*)(MMIO_BASE+0x00200044))
#define GPREN0          ((volatile unsigned int*)(MMIO_BASE+0x0020004C))
#define GPREN1          ((volatile unsigned int*)(MMIO_BASE+0x00200050))
#define GPFEN0          ((volatile unsigned int*)(MMIO_BASE+0x00200058))
#define GPFEN1          ((volatile unsigned int*)(MMIO_BASE+0x0020005C))
#define GPAREN0          ((volatile unsigned int*)(MMIO_BASE+0x0020007C))
#define GPAREN1          ((volatile unsigned int*)(MMIO_BASE+0x00200080))
#define GPAFEN0          ((volatile unsigned int*)(MMIO_BASE+0x00200088))
#define GPAFEN1          ((volatile unsigned int*)(MMIO_BASE+0x0020008C))
#define GPHEN0          ((volatile unsigned int*)(MMIO_BASE+0x00200064))
#define GPHEN1          ((volatile unsigned int*)(MMIO_BASE+0x00200068))
// Controls actuation of pull up/down to ALL GPIO pins.
#define GPPUD           ((volatile unsigned int*)(MMIO_BASE+0x00200094))
//// Controls actuation of pull up/down for specific GPIO pin.
#define GPPUDCLK0       ((volatile unsigned int*)(MMIO_BASE+0x00200098))
#define GPPUDCLK1       ((volatile unsigned int*)(MMIO_BASE+0x0020009C))

#endif