51 lines
1.4 KiB
C
51 lines
1.4 KiB
C
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/*
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* Copyright (c) CompanyNameMagicTag 2012-2019. All rights reserved.
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* Description: serial_dw.h code
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* Author: CompanyName
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* Create: 2012-12-14
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*/
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#ifndef __SERIAL_DW_H__
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#define __SERIAL_DW_H__
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#define DW_UART_RBR 0x00 /* Receive buff. */
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#define DW_UART_THR 0x00 /* Transmit Holding */
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#define DW_UART_DLL 0x00 /* Divisor Latch Low */
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#define DW_UART_DLH 0x04 /* Divisor Latch High */
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#define DW_UART_IER 0x04 /* int enable */
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#define DW_UART_IIR 0x08 /* interrupt indentification REG */
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#define DW_UART_FCR 0x08 /* FIFO control */
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#define DW_UART_LCR 0x0C /* Line control */
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#define DW_UART_MCR 0x10 /* Modem control */
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#define DW_UART_LSR 0x14 /* Line statue */
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#define DW_UART_USR 0x7C /* Uart statues */
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#define DW_UART_HTX 0xA4 /* Halt Tx */
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#define DE_FIFO_DEPTH 0x10 /* 16bytes FIFO */
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/*
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*
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* DW_UART_LCR bit field
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*
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*/
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#define DW_UART_DLAB (1 << 7)
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#define DW_UART_BREAK (1 << 6)
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#define DW_UART_EPS (1 << 4)
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#define DW_UART_PEN (1 << 3)
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#define DW_UART_STOP (1 << 2)
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#define DW_UART_8BIT 0x03
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void serial_init(unsigned int g_uart_baseaddr, unsigned int baud_rate);
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void serial_exit(unsigned int g_uart_baseaddr);
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void serial_putc(const char c);
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void console_puthex(unsigned long h, unsigned char print_all); /* for debug */
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void serial_puts(const char *s);
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int serial_getc(void);
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int serial_tstc(void);
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#endif
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