mirror of
https://github.com/openhwgroup/cvw
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48 lines
1.8 KiB
C
48 lines
1.8 KiB
C
#pragma once
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#include <stdint.h>
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// UART register addresses
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#define UART_BASE 0x10000000
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#define UART_RBR UART_BASE + 0x00
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#define UART_THR UART_BASE + 0x00
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#define UART_IER UART_BASE + 0x01
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#define UART_IIR UART_BASE + 0x02
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#define UART_FCR UART_BASE + 0x02
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#define UART_LCR UART_BASE + 0x03
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#define UART_MCR UART_BASE + 0x04
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#define UART_LSR UART_BASE + 0x05
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#define UART_MSR UART_BASE + 0x06
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#define UART_SCR UART_BASE + 0x07
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#define UART_DLL UART_BASE + 0x00
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#define UART_DLM UART_BASE + 0x01
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// Primary function prototypes
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void init_uart(uint32_t freq, uint32_t baud);
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void write_reg_u8(uintptr_t addr, uint8_t value);
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uint8_t read_reg_u8(uintptr_t addr);
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int read_serial(uint8_t *res);
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void print_uart(const char* str);
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void print_uart_int(uint32_t addr);
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void print_uart_dec(uint64_t addr);
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void print_uart_addr(uint64_t addr);
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void print_uart_hex(uint64_t addr, int n);
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void print_uart_byte(uint8_t byte);
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// Print numbers in hex with specified widths
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#define print_uart_int(addr) print_uart_hex(addr, 4)
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#define print_uart_addr(addr) print_uart_hex(addr, 8)
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#define print_uart_byte(addr) print_uart_hex(addr, 1)
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#define print_r7(addr) print_uart_hex(addr, 5)
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#define print_r1(addr) print_uart_byte(addr)
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// Print line with numbers utility macros
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#define println(msg) print_uart(msg "\r\n");
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#define println_with_dec(msg, num) print_uart(msg); print_uart_dec(num); print_uart("\r\n")
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#define println_with_byte(msg, num) print_uart(msg); print_uart_byte(num); print_uart("\r\n")
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#define println_with_int(msg, num) print_uart(msg); print_uart_int(num); print_uart("\r\n")
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#define println_with_addr(msg, num) print_uart(msg); print_uart_addr(num); print_uart("\r\n")
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#define println_with_r1(msg, num) print_uart(msg); print_r1(num); print_uart("\r\n")
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#define println_with_r7(msg, num) print_uart(msg); print_r7(num); print_uart("\r\n")
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