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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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#define CLKRATE 3686400 /* cogent motherboard serial clk = 3.6864MHz */
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#define DEFDIV 1 /* default to 230400 bps */
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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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