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			16 lines
		
	
	
		
			566 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			16 lines
		
	
	
		
			566 B
		
	
	
	
		
			C
		
	
	
	
	
	
| /* Line Status Register bits */
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| #define LSR_DR		0x01	/* Data ready */
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| #define LSR_OE		0x02	/* Overrun */
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| #define LSR_PE		0x04	/* Parity error */
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| #define LSR_FE		0x08	/* Framing error */
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| #define LSR_BI		0x10	/* Break */
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| #define LSR_THRE	0x20	/* Xmit holding register empty */
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| #define LSR_TEMT	0x40	/* Xmitter empty */
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| #define LSR_ERR		0x80	/* Error */
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| 
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| #define CLKRATE		3686400	/* cogent motherboard serial clk = 3.6864MHz */
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| #define DEFDIV		1	/* default to 230400 bps */
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| 
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| #define br_to_div(br)	(CLKRATE / (16 * (br)))
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| #define div_to_br(div)	(CLKRATE / (16 * (div)))
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