-#define dmfrsp dmfrbuf /* receive silo parameter register (wo) */
-#define dmftbuf dmfun.dmfirc[0] /* transmit buffer */
-#define dmftsc dmfun.dmfirc[0] /* transmit silo count */
-#define dmfrms dmfun.dmfirc[1] /* receive modem status */
-#define dmflctms dmfun.dmfirw /* line control, transmit modem status */
-#define dmftba dmfun.dmfirw /* transmit buffer address */
-#define dmftcc dmfun.dmfirw /* transmit character count */
-
-/* bits in dmfcsr */
-#define DMF_TI 0100000 /* transmit interrupt */
-#define DMF_TIE 0040000 /* transmit interrupt enable */
-#define DMF_NXM 0020000 /* non-existant memory */
-#define DMF_LIN 0003400 /* transmit line number */
-#define DMF_RI 0000200 /* receiver interrupt */
-#define DMF_RIE 0000100 /* receiver interrupt enable */
-#define DMF_CLR 0000040 /* master reset */
-#define DMF_IAD 0000037 /* indirect address register */
-
-#define DMFIR_TBUF 000 /* select tbuf indirect register */
-#define DMFIR_LCR 010 /* select lcr indirect register */
-#define DMFIR_TBA 020 /* select tba indirect register */
-#define DMFIR_TCC 030 /* select tcc indirect register */
-
-/* bits in dmflpr */
-#define BITS6 (01<<3)
-#define BITS7 (02<<3)
-#define BITS8 (03<<3)
-#define TWOSB 0200
-#define PENABLE 040
-#define EPAR 0100
-
-#define DMF_IE (DMF_TIE|DMF_RIE)
-
-#define DMF_SILOCNT 32 /* size of DMF output silo (per line) */
-
-/* bits in dmfrbuf */
-#define DMF_DSC 0004000 /* data set change */
-#define DMF_PE 0010000 /* parity error */
-#define DMF_FE 0020000 /* framing error */
-#define DMF_DO 0040000 /* data overrun */
-
-/* bits in dmfrms */
-#define DMF_USRR 0004 /* user modem signal (pin 25) */
-#define DMF_SR 0010 /* secondary receive */
-#define DMF_CTS 0020 /* clear to send */
-#define DMF_CAR 0040 /* carrier detect */
-#define DMF_RNG 0100 /* ring */
-#define DMF_DSR 0200 /* data set ready */
-
-/* bits in dmftms */
-#define DMF_USRW 0001 /* user modem signal (pin 18) */
-#define DMF_DTR 0002 /* data terminal ready */
-#define DMF_RATE 0004 /* data signal rate select */
-#define DMF_ST 0010 /* secondary transmit */
-#define DMF_RTS 0020 /* request to send */
-#define DMF_BRK 0040 /* pseudo break bit */
-#define DMF_PREEMPT 0200 /* preempt output */
-
-/* flags for modem control */
-#define DMF_ON (DMF_DTR|DMF_RTS)
-#define DMF_OFF 0
-
-/* bits in dmflctms */
-#define DMF_MIE 0040 /* modem interrupt enable */
-#define DMF_FLUSH 0020 /* flush transmit silo */
-#define DMF_RBRK 0010 /* real break bit */
-#define DMF_RE 0004 /* receive enable */
-#define DMF_AUTOX 0002 /* auto XON/XOFF */
-#define DMF_TE 0001 /* transmit enable */
-
-#define DMFLCR_ENA (DMF_MIE|DMF_RE|DMF_TE)
-
-/* bits in dm lsr, copied from dh.c */
-#define DML_USR 0001000 /* usr modem sig, not a real DM bit */
-#define DML_DSR 0000400 /* data set ready, not a real DM bit */
-#define DML_RNG 0000200 /* ring */
-#define DML_CAR 0000100 /* carrier detect */
-#define DML_CTS 0000040 /* clear to send */
-#define DML_SR 0000020 /* secondary receive */
-#define DML_ST 0000010 /* secondary transmit */
-#define DML_RTS 0000004 /* request to send */
-#define DML_DTR 0000002 /* data terminal ready */
-#define DML_LE 0000001 /* line enable */