144 	} modem;  member
238 	timediff = 1000000 + tv->tv_usec - bc->modem.ser12.pll_time;  in ser12_rx()
243 		bc->modem.ser12.pll_time += bc->baud_us;  in ser12_rx()
244 		bc->modem.ser12.dcd_time--;  in ser12_rx()
246 		if (bc->modem.shreg & 1) {  in ser12_rx()
247 			hdlcdrv_putbits(&bc->hdrv, (bc->modem.shreg >> 1) ^ 0xffff);  in ser12_rx()
248 			bc->modem.shreg = 0x10000;  in ser12_rx()
251 		bc->modem.shreg >>= 1;  in ser12_rx()
253 	if (bc->modem.ser12.dcd_time <= 0) {  in ser12_rx()
255 			hdlcdrv_setdcd(&bc->hdrv, (bc->modem.ser12.dcd_sum0 +   in ser12_rx()
256 						   bc->modem.ser12.dcd_sum1 +   in ser12_rx()
257 						   bc->modem.ser12.dcd_sum2) < 0);  in ser12_rx()
258 		bc->modem.ser12.dcd_sum2 = bc->modem.ser12.dcd_sum1;  in ser12_rx()
259 		bc->modem.ser12.dcd_sum1 = bc->modem.ser12.dcd_sum0;  in ser12_rx()
260 		bc->modem.ser12.dcd_sum0 = 2; /* slight bias */  in ser12_rx()
261 		bc->modem.ser12.dcd_time += 120;  in ser12_rx()
263 	if (bc->modem.ser12.last_rxbit != curs) {  in ser12_rx()
264 		bc->modem.ser12.last_rxbit = curs;  in ser12_rx()
265 		bc->modem.shreg |= 0x10000;  in ser12_rx()
268 			bc->modem.ser12.pll_time += bdus8;  in ser12_rx()
270 			bc->modem.ser12.pll_time += 1000000 - bdus8;  in ser12_rx()
273 			bc->modem.ser12.dcd_sum0 += 4;  in ser12_rx()
275 			bc->modem.ser12.dcd_sum0--;  in ser12_rx()
280 	while (bc->modem.ser12.pll_time >= 1000000)  in ser12_rx()
281 		bc->modem.ser12.pll_time -= 1000000;  in ser12_rx()
328 			if (bc->modem.ptt)  in ser12_interrupt()
329 				outb(0x0e | (!!bc->modem.ser12.tx_bit), MCR(dev->base_addr));  in ser12_interrupt()
344 	if (bc->modem.ptt && txcount) {  in ser12_interrupt()
345 		if (bc->modem.ser12.txshreg <= 1) {  in ser12_interrupt()
346 			bc->modem.ser12.txshreg = 0x10000 | hdlcdrv_getbits(&bc->hdrv);  in ser12_interrupt()
349 				bc->modem.ptt = 0;  in ser12_interrupt()
353 		bc->modem.ser12.tx_bit = !(bc->modem.ser12.tx_bit ^ (bc->modem.ser12.txshreg & 1));  in ser12_interrupt()
354 		bc->modem.ser12.txshreg >>= 1;  in ser12_interrupt()
358 	if (!bc->modem.ptt && txcount) {  in ser12_interrupt()
362 			bc->modem.ser12.txshreg = 1;  in ser12_interrupt()
363 			bc->modem.ptt = 1;  in ser12_interrupt()
437 	memset(&bc->modem, 0, sizeof(bc->modem));  in ser12_open()