net/hamradio/scc.c

37    ! before you connect a radio to the SCC board and start to transmit or !
41    allowance/licence from the designer of the SCC Board and/or the
44    This program is free software; you can redistribute it and/or modify
50    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
284 static inline void or(struct scc_channel *scc, unsigned char reg, unsigned char val)
362 	or(scc,R3,ENT_HM|RxENABLE);  /* enable the receiver, hunt mode */
404 		or(scc,R10,ABUNDER);		/* re-install underrun protection */
508 		or(scc,R10,ABUNDER);
527 		or(scc,R3,ENT_HM);	/* enter hunt mode for next flag */
541 			or(scc, R3, ENT_HM);
557 		or(scc, R3, ENT_HM);
581 		or(scc,R3,ENT_HM);               /* enter hunt mode for next flag */
726 	or(scc,R14,BRENABL);		/* enable baudrate generator */
756  * WR4	XXXXXXXX	Tx/Rx control, async or sync mode
821    CLK_EXTERNAL: external clocking (G3RUH or DF9IC modem)
862 		or(scc,R15,SHDLCE|FIFOE);	/* enable FIFO, SDLC/HDLC Enhancements (From now R7 is R7') */
879 	or(scc,R1,INT_ALL_Rx|TxINT_ENAB|EXT_INT_ENAB); /* enable interrupts */
883 	or(scc,R9,MIE);			/* master interrupt enable */
917 		or(scc, R1, TxINT_ENAB);	/* t_maxkeyup may have reset these */
918 		or(scc, R15, TxUIE);
937 				or(scc,R5, TxENAB);
940 				or(scc,R5,RTS|TxENAB);	/* set the RTS line and enable TX */
954 				or(scc,R15, scc->kiss.softdcd? SYNCIE:DCDIE);
971 				or(scc,R5, TxENAB);
974 				or(scc,R5,RTS|TxENAB);	/* enable tx */
986 				or(scc, R15, scc->kiss.softdcd? SYNCIE:DCDIE);
1122  * fulldup == 0:  DCD is active or Rand > P-persistence: start t_busy timer
1125  * fulldup == 2:  mintime expired, reset status or key trx and start txdelay
1132 	if (scc->stat.tx_state == TXS_WAIT)	/* maxkeyup or idle timeout */
1299  * this will set the "hardware" parameters through KISS commands or ioctl()
1326 				or(scc, R15, SYNCIE);
1330 				or(scc, R15, DCDIE);
1678 	 * Start transmission if the trx state is idle or