Lines Matching refs:bc
159 static inline void baycom_int_freq(struct baycom_state *bc) in baycom_int_freq() argument
166 bc->debug_vals.cur_intcnt++; in baycom_int_freq()
167 if (time_after_eq(cur_jiffies, bc->debug_vals.last_jiffies + HZ)) { in baycom_int_freq()
168 bc->debug_vals.last_jiffies = cur_jiffies; in baycom_int_freq()
169 bc->debug_vals.last_intcnt = bc->debug_vals.cur_intcnt; in baycom_int_freq()
170 bc->debug_vals.cur_intcnt = 0; in baycom_int_freq()
171 bc->debug_vals.last_pllcorr = bc->debug_vals.cur_pllcorr; in baycom_int_freq()
172 bc->debug_vals.cur_pllcorr = 0; in baycom_int_freq()
231 static __inline__ void ser12_rx(struct net_device *dev, struct baycom_state *bc, struct timeval *tv… in ser12_rx() argument
234 int bdus8 = bc->baud_us >> 3; in ser12_rx()
235 int bdus4 = bc->baud_us >> 2; in ser12_rx()
236 int bdus2 = bc->baud_us >> 1; in ser12_rx()
238 timediff = 1000000 + tv->tv_usec - bc->modem.ser12.pll_time; in ser12_rx()
242 timediff -= bc->baud_us; 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()
254 if (!bc->opt_dcd) 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()
277 bc->debug_vals.cur_pllcorr = timediff; in ser12_rx()
280 while (bc->modem.ser12.pll_time >= 1000000) in ser12_rx()
281 bc->modem.ser12.pll_time -= 1000000; in ser12_rx()
289 struct baycom_state *bc = netdev_priv(dev); in ser12_interrupt() local
294 if (!bc || bc->hdrv.magic != HDLCDRV_MAGIC) in ser12_interrupt()
303 if ((msr & 8) && bc->opt_dcd) in ser12_interrupt()
304 hdlcdrv_setdcd(&bc->hdrv, !((msr ^ bc->opt_dcd) & 0x80)); in ser12_interrupt()
322 baycom_int_freq(bc); in ser12_interrupt()
328 if (bc->modem.ptt) in ser12_interrupt()
329 outb(0x0e | (!!bc->modem.ser12.tx_bit), MCR(dev->base_addr)); in ser12_interrupt()
337 if ((msr & 8) && bc->opt_dcd) in ser12_interrupt()
338 hdlcdrv_setdcd(&bc->hdrv, !((msr ^ bc->opt_dcd) & 0x80)); in ser12_interrupt()
343 ser12_rx(dev, bc, &tv, msr & 0x10); /* CTS */ 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()
347 if (!hdlcdrv_ptt(&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()
359 hdlcdrv_arbitrate(dev, &bc->hdrv); in ser12_interrupt()
360 if (hdlcdrv_ptt(&bc->hdrv)) { in ser12_interrupt()
361 ser12_set_divisor(dev, bc->baud_uartdiv); in ser12_interrupt()
362 bc->modem.ser12.txshreg = 1; in ser12_interrupt()
363 bc->modem.ptt = 1; in ser12_interrupt()
366 hdlcdrv_transmitter(dev, &bc->hdrv); in ser12_interrupt()
367 hdlcdrv_receiver(dev, &bc->hdrv); in ser12_interrupt()
415 struct baycom_state *bc = netdev_priv(dev); in ser12_open() local
418 if (!dev || !bc) in ser12_open()
427 if (bc->baud < 300 || bc->baud > 4800) { in ser12_open()
437 memset(&bc->modem, 0, sizeof(bc->modem)); in ser12_open()
438 bc->hdrv.par.bitrate = bc->baud; in ser12_open()
439 bc->baud_us = 1000000/bc->baud; in ser12_open()
440 bc->baud_uartdiv = (115200/8)/bc->baud; in ser12_open()
471 hdlcdrv_setdcd(&bc->hdrv, 0); in ser12_open()
473 bc_drvname, dev->base_addr, dev->irq, bc->baud, uart_str[u]); in ser12_open()
481 struct baycom_state *bc = netdev_priv(dev); in ser12_close() local
483 if (!dev || !bc) in ser12_close()
519 static int baycom_setmode(struct baycom_state *bc, const char *modestr) in baycom_setmode() argument
526 bc->baud = baud*100; in baycom_setmode()
529 bc->opt_dcd = 0; in baycom_setmode()
531 bc->opt_dcd = -1; in baycom_setmode()
533 bc->opt_dcd = 1; in baycom_setmode()
542 struct baycom_state *bc; in baycom_ioctl() local
548 bc = netdev_priv(dev); in baycom_ioctl()
549 BUG_ON(bc->hdrv.magic != HDLCDRV_MAGIC); in baycom_ioctl()
558 sprintf(hi->data.modename, "ser%u", bc->baud / 100); in baycom_ioctl()
559 if (bc->opt_dcd <= 0) in baycom_ioctl()
560 strcat(hi->data.modename, (!bc->opt_dcd) ? "*" : "+"); in baycom_ioctl()
569 return baycom_setmode(bc, hi->data.modename); in baycom_ioctl()
590 bi.data.dbg.debug1 = bc->hdrv.ptt_keyed; in baycom_ioctl()
591 bi.data.dbg.debug2 = bc->debug_vals.last_intcnt; in baycom_ioctl()
592 bi.data.dbg.debug3 = bc->debug_vals.last_pllcorr; in baycom_ioctl()
639 struct baycom_state *bc; in init_baycomserfdx() local
655 bc = netdev_priv(dev); in init_baycomserfdx()
656 if (set_hw && baycom_setmode(bc, mode[i])) in init_baycomserfdx()
658 bc->baud = baud[i]; in init_baycomserfdx()