mirror of
git://projects.qi-hardware.com/nn-usb-fpga.git
synced 2025-01-09 19:30:14 +02:00
109 lines
2.5 KiB
C
109 lines
2.5 KiB
C
#ifndef SPIKEHW_H
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#define SPIKEHW_H
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#define PROMSTART 0x00000000
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#define RAMSTART 0x00000800
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#define RAMSIZE 0x400
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#define RAMEND (RAMSTART + RAMSIZE)
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#define RAM_START 0x40000000
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#define RAM_SIZE 0x04000000
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#define FCPU 50000000
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#define UART_RXBUFSIZE 32
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/****************************************************************************
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* Types
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*/
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typedef unsigned int uint32_t; // 32 Bit
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typedef signed int int32_t; // 32 Bit
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typedef unsigned char uint8_t; // 8 Bit
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typedef signed char int8_t; // 8 Bit
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/****************************************************************************
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* Interrupt handling
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*/
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typedef void(*isr_ptr_t)(void);
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void irq_enable();
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void irq_disable();
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void irq_set_mask(uint32_t mask);
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uint32_t irq_get_mak();
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void isr_init();
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void isr_register(int irq, isr_ptr_t isr);
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void isr_unregister(int irq);
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/****************************************************************************
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* General Stuff
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*/
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void halt();
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void jump(uint32_t addr);
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/****************************************************************************
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* Timer
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*/
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#define TIMER_EN 0x08 // Enable Timer
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#define TIMER_AR 0x04 // Auto-Reload
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#define TIMER_IRQEN 0x02 // IRQ Enable
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#define TIMER_TRIG 0x01 // Triggered (reset when writing to TCR)
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typedef struct {
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volatile uint32_t tcr0;
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volatile uint32_t compare0;
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volatile uint32_t counter0;
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volatile uint32_t tcr1;
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volatile uint32_t compare1;
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volatile uint32_t counter1;
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} timer_t;
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void msleep(uint32_t msec);
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void nsleep(uint32_t nsec);
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void tic_init();
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/***************************************************************************
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* GPIO0
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*/
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typedef struct {
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volatile uint32_t ctrl;
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volatile uint32_t dummy1;
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volatile uint32_t dummy2;
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volatile uint32_t dummy3;
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volatile uint32_t in;
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volatile uint32_t out;
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volatile uint32_t oe;
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} gpio_t;
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/***************************************************************************
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* UART0
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*/
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#define UART_DR 0x01 // RX Data Ready
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#define UART_ERR 0x02 // RX Error
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#define UART_BUSY 0x10 // TX Busy
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typedef struct {
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volatile uint32_t ucr;
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volatile uint32_t rxtx;
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} uart_t;
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void uart_init();
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void uart_putchar(char c);
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void uart_putstr(char *str);
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char uart_getchar();
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/***************************************************************************
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* Pointer to actual components
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*/
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extern timer_t *timer0;
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extern uart_t *uart0;
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extern gpio_t *gpio0;
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extern uint32_t *sram0;
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#endif // SPIKEHW_H
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