Lines Matching +full:dcd +full:- +full:override
1 // SPDX-License-Identifier: GPL-1.0+
28 * DBGINFO information - most verbose output
131 MODULE_PARM_DESC(ttymajor, "TTY major device number override: 0=auto assigned");
147 #define dev_to_port(D) (dev_to_hdlc(D)->priv)
500 printk("%s %s data:\n",info->device_name, label); in trace_block()
515 count -= linecount; in trace_block()
526 printk("tbuf_current=%d\n", info->tbuf_current); in dump_tbufs()
527 for (i=0 ; i < info->tbuf_count ; i++) { in dump_tbufs()
529 i, le16_to_cpu(info->tbufs[i].count), le16_to_cpu(info->tbufs[i].status)); in dump_tbufs()
540 printk("rbuf_current=%d\n", info->rbuf_current); in dump_rbufs()
541 for (i=0 ; i < info->rbuf_count ; i++) { in dump_rbufs()
543 i, le16_to_cpu(info->rbufs[i].count), le16_to_cpu(info->rbufs[i].status)); in dump_rbufs()
557 if (info->magic != MGSL_MAGIC) { in sanity_check()
574 * ldisc_receive_buf - pass receive data to line discipline
584 if (ld->ops->receive_buf) in ldisc_receive_buf()
585 ld->ops->receive_buf(tty, data, flags, count); in ldisc_receive_buf()
598 line = tty->index; in open()
601 return -ENODEV; in open()
605 while(info && info->line != line) in open()
606 info = info->next_device; in open()
607 if (sanity_check(info, tty->name, "open")) in open()
608 return -ENODEV; in open()
609 if (info->init_error) { in open()
610 DBGERR(("%s init error=%d\n", info->device_name, info->init_error)); in open()
611 return -ENODEV; in open()
614 tty->driver_data = info; in open()
615 info->port.tty = tty; in open()
617 DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->port.count)); in open()
619 mutex_lock(&info->port.mutex); in open()
621 spin_lock_irqsave(&info->netlock, flags); in open()
622 if (info->netcount) { in open()
623 retval = -EBUSY; in open()
624 spin_unlock_irqrestore(&info->netlock, flags); in open()
625 mutex_unlock(&info->port.mutex); in open()
628 info->port.count++; in open()
629 spin_unlock_irqrestore(&info->netlock, flags); in open()
631 if (info->port.count == 1) { in open()
635 mutex_unlock(&info->port.mutex); in open()
639 mutex_unlock(&info->port.mutex); in open()
642 DBGINFO(("%s block_til_ready rc=%d\n", info->device_name, retval)); in open()
650 if (tty->count == 1) in open()
651 info->port.tty = NULL; /* tty layer will release tty struct */ in open()
652 if(info->port.count) in open()
653 info->port.count--; in open()
656 DBGINFO(("%s open rc=%d\n", info->device_name, retval)); in open()
662 struct slgt_info *info = tty->driver_data; in close()
664 if (sanity_check(info, tty->name, "close")) in close()
666 DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count)); in close()
668 if (tty_port_close_start(&info->port, tty, filp) == 0) in close()
671 mutex_lock(&info->port.mutex); in close()
672 if (tty_port_initialized(&info->port)) in close()
673 wait_until_sent(tty, info->timeout); in close()
678 mutex_unlock(&info->port.mutex); in close()
680 tty_port_close_end(&info->port, tty); in close()
681 info->port.tty = NULL; in close()
683 DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count)); in close()
688 struct slgt_info *info = tty->driver_data; in hangup()
691 if (sanity_check(info, tty->name, "hangup")) in hangup()
693 DBGINFO(("%s hangup\n", info->device_name)); in hangup()
697 mutex_lock(&info->port.mutex); in hangup()
700 spin_lock_irqsave(&info->port.lock, flags); in hangup()
701 info->port.count = 0; in hangup()
702 info->port.tty = NULL; in hangup()
703 spin_unlock_irqrestore(&info->port.lock, flags); in hangup()
704 tty_port_set_active(&info->port, 0); in hangup()
705 mutex_unlock(&info->port.mutex); in hangup()
707 wake_up_interruptible(&info->port.open_wait); in hangup()
712 struct slgt_info *info = tty->driver_data; in set_termios()
715 DBGINFO(("%s set_termios\n", tty->driver->name)); in set_termios()
720 if ((old_termios->c_cflag & CBAUD) && !C_BAUD(tty)) { in set_termios()
721 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in set_termios()
722 spin_lock_irqsave(&info->lock,flags); in set_termios()
724 spin_unlock_irqrestore(&info->lock,flags); in set_termios()
728 if (!(old_termios->c_cflag & CBAUD) && C_BAUD(tty)) { in set_termios()
729 info->signals |= SerialSignal_DTR; in set_termios()
731 info->signals |= SerialSignal_RTS; in set_termios()
732 spin_lock_irqsave(&info->lock,flags); in set_termios()
734 spin_unlock_irqrestore(&info->lock,flags); in set_termios()
738 if ((old_termios->c_cflag & CRTSCTS) && !C_CRTSCTS(tty)) { in set_termios()
739 tty->hw_stopped = 0; in set_termios()
750 if (info->params.mode == MGSL_MODE_HDLC) { in update_tx_timer()
752 mod_timer(&info->tx_timer, jiffies + msecs_to_jiffies(timeout)); in update_tx_timer()
760 struct slgt_info *info = tty->driver_data; in write()
763 if (sanity_check(info, tty->name, "write")) in write()
764 return -EIO; in write()
766 DBGINFO(("%s write count=%d\n", info->device_name, count)); in write()
768 if (!info->tx_buf || (count > info->max_frame_size)) in write()
769 return -EIO; in write()
771 if (!count || tty->flow.stopped || tty->hw_stopped) in write()
774 spin_lock_irqsave(&info->lock, flags); in write()
776 if (info->tx_count) { in write()
778 if (!tx_load(info, info->tx_buf, info->tx_count)) in write()
780 info->tx_count = 0; in write()
787 spin_unlock_irqrestore(&info->lock, flags); in write()
788 DBGINFO(("%s write rc=%d\n", info->device_name, ret)); in write()
794 struct slgt_info *info = tty->driver_data; in put_char()
798 if (sanity_check(info, tty->name, "put_char")) in put_char()
800 DBGINFO(("%s put_char(%d)\n", info->device_name, ch)); in put_char()
801 if (!info->tx_buf) in put_char()
803 spin_lock_irqsave(&info->lock,flags); in put_char()
804 if (info->tx_count < info->max_frame_size) { in put_char()
805 info->tx_buf[info->tx_count++] = ch; in put_char()
808 spin_unlock_irqrestore(&info->lock,flags); in put_char()
814 struct slgt_info *info = tty->driver_data; in send_xchar()
817 if (sanity_check(info, tty->name, "send_xchar")) in send_xchar()
819 DBGINFO(("%s send_xchar(%d)\n", info->device_name, ch)); in send_xchar()
820 info->x_char = ch; in send_xchar()
822 spin_lock_irqsave(&info->lock,flags); in send_xchar()
823 if (!info->tx_enabled) in send_xchar()
825 spin_unlock_irqrestore(&info->lock,flags); in send_xchar()
831 struct slgt_info *info = tty->driver_data; in wait_until_sent()
836 if (sanity_check(info, tty->name, "wait_until_sent")) in wait_until_sent()
838 DBGINFO(("%s wait_until_sent entry\n", info->device_name)); in wait_until_sent()
839 if (!tty_port_initialized(&info->port)) in wait_until_sent()
847 * Note: use tight timings here to satisfy the NIST-PCTS. in wait_until_sent()
850 if (info->params.data_rate) { in wait_until_sent()
851 char_time = info->timeout/(32 * 5); in wait_until_sent()
860 while (info->tx_active) { in wait_until_sent()
868 DBGINFO(("%s wait_until_sent exit\n", info->device_name)); in wait_until_sent()
873 struct slgt_info *info = tty->driver_data; in write_room()
876 if (sanity_check(info, tty->name, "write_room")) in write_room()
878 ret = (info->tx_active) ? 0 : HDLC_MAX_FRAME_SIZE; in write_room()
879 DBGINFO(("%s write_room=%u\n", info->device_name, ret)); in write_room()
885 struct slgt_info *info = tty->driver_data; in flush_chars()
888 if (sanity_check(info, tty->name, "flush_chars")) in flush_chars()
890 DBGINFO(("%s flush_chars entry tx_count=%d\n", info->device_name, info->tx_count)); in flush_chars()
892 if (info->tx_count <= 0 || tty->flow.stopped || in flush_chars()
893 tty->hw_stopped || !info->tx_buf) in flush_chars()
896 DBGINFO(("%s flush_chars start transmit\n", info->device_name)); in flush_chars()
898 spin_lock_irqsave(&info->lock,flags); in flush_chars()
899 if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count)) in flush_chars()
900 info->tx_count = 0; in flush_chars()
901 spin_unlock_irqrestore(&info->lock,flags); in flush_chars()
906 struct slgt_info *info = tty->driver_data; in flush_buffer()
909 if (sanity_check(info, tty->name, "flush_buffer")) in flush_buffer()
911 DBGINFO(("%s flush_buffer\n", info->device_name)); in flush_buffer()
913 spin_lock_irqsave(&info->lock, flags); in flush_buffer()
914 info->tx_count = 0; in flush_buffer()
915 spin_unlock_irqrestore(&info->lock, flags); in flush_buffer()
925 struct slgt_info *info = tty->driver_data; in tx_hold()
928 if (sanity_check(info, tty->name, "tx_hold")) in tx_hold()
930 DBGINFO(("%s tx_hold\n", info->device_name)); in tx_hold()
931 spin_lock_irqsave(&info->lock,flags); in tx_hold()
932 if (info->tx_enabled && info->params.mode == MGSL_MODE_ASYNC) in tx_hold()
934 spin_unlock_irqrestore(&info->lock,flags); in tx_hold()
942 struct slgt_info *info = tty->driver_data; in tx_release()
945 if (sanity_check(info, tty->name, "tx_release")) in tx_release()
947 DBGINFO(("%s tx_release\n", info->device_name)); in tx_release()
948 spin_lock_irqsave(&info->lock, flags); in tx_release()
949 if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count)) in tx_release()
950 info->tx_count = 0; in tx_release()
951 spin_unlock_irqrestore(&info->lock, flags); in tx_release()
968 struct slgt_info *info = tty->driver_data; in ioctl()
972 if (sanity_check(info, tty->name, "ioctl")) in ioctl()
973 return -ENODEV; in ioctl()
974 DBGINFO(("%s ioctl() cmd=%08X\n", info->device_name, cmd)); in ioctl()
978 return -EIO; in ioctl()
1001 mutex_lock(&info->port.mutex); in ioctl()
1034 ret = -ENOIOCTLCMD; in ioctl()
1036 mutex_unlock(&info->port.mutex); in ioctl()
1044 struct slgt_info *info = tty->driver_data; in get_icount()
1048 spin_lock_irqsave(&info->lock,flags); in get_icount()
1049 cnow = info->icount; in get_icount()
1050 spin_unlock_irqrestore(&info->lock,flags); in get_icount()
1052 icount->cts = cnow.cts; in get_icount()
1053 icount->dsr = cnow.dsr; in get_icount()
1054 icount->rng = cnow.rng; in get_icount()
1055 icount->dcd = cnow.dcd; in get_icount()
1056 icount->rx = cnow.rx; in get_icount()
1057 icount->tx = cnow.tx; in get_icount()
1058 icount->frame = cnow.frame; in get_icount()
1059 icount->overrun = cnow.overrun; in get_icount()
1060 icount->parity = cnow.parity; in get_icount()
1061 icount->brk = cnow.brk; in get_icount()
1062 icount->buf_overrun = cnow.buf_overrun; in get_icount()
1075 DBGINFO(("%s get_params32\n", info->device_name)); in get_params32()
1077 tmp_params.mode = (compat_ulong_t)info->params.mode; in get_params32()
1078 tmp_params.loopback = info->params.loopback; in get_params32()
1079 tmp_params.flags = info->params.flags; in get_params32()
1080 tmp_params.encoding = info->params.encoding; in get_params32()
1081 tmp_params.clock_speed = (compat_ulong_t)info->params.clock_speed; in get_params32()
1082 tmp_params.addr_filter = info->params.addr_filter; in get_params32()
1083 tmp_params.crc_type = info->params.crc_type; in get_params32()
1084 tmp_params.preamble_length = info->params.preamble_length; in get_params32()
1085 tmp_params.preamble = info->params.preamble; in get_params32()
1086 tmp_params.data_rate = (compat_ulong_t)info->params.data_rate; in get_params32()
1087 tmp_params.data_bits = info->params.data_bits; in get_params32()
1088 tmp_params.stop_bits = info->params.stop_bits; in get_params32()
1089 tmp_params.parity = info->params.parity; in get_params32()
1091 return -EFAULT; in get_params32()
1099 DBGINFO(("%s set_params32\n", info->device_name)); in set_params32()
1101 return -EFAULT; in set_params32()
1103 spin_lock(&info->lock); in set_params32()
1105 info->base_clock = tmp_params.clock_speed; in set_params32()
1107 info->params.mode = tmp_params.mode; in set_params32()
1108 info->params.loopback = tmp_params.loopback; in set_params32()
1109 info->params.flags = tmp_params.flags; in set_params32()
1110 info->params.encoding = tmp_params.encoding; in set_params32()
1111 info->params.clock_speed = tmp_params.clock_speed; in set_params32()
1112 info->params.addr_filter = tmp_params.addr_filter; in set_params32()
1113 info->params.crc_type = tmp_params.crc_type; in set_params32()
1114 info->params.preamble_length = tmp_params.preamble_length; in set_params32()
1115 info->params.preamble = tmp_params.preamble; in set_params32()
1116 info->params.data_rate = tmp_params.data_rate; in set_params32()
1117 info->params.data_bits = tmp_params.data_bits; in set_params32()
1118 info->params.stop_bits = tmp_params.stop_bits; in set_params32()
1119 info->params.parity = tmp_params.parity; in set_params32()
1121 spin_unlock(&info->lock); in set_params32()
1131 struct slgt_info *info = tty->driver_data; in slgt_compat_ioctl()
1134 if (sanity_check(info, tty->name, "compat_ioctl")) in slgt_compat_ioctl()
1135 return -ENODEV; in slgt_compat_ioctl()
1136 DBGINFO(("%s compat_ioctl() cmd=%08X\n", info->device_name, cmd)); in slgt_compat_ioctl()
1163 DBGINFO(("%s compat_ioctl() cmd=%08X rc=%d\n", info->device_name, cmd, rc)); in slgt_compat_ioctl()
1179 info->device_name, info->phys_reg_addr, in line_info()
1180 info->irq_level, info->max_frame_size); in line_info()
1183 spin_lock_irqsave(&info->lock,flags); in line_info()
1185 spin_unlock_irqrestore(&info->lock,flags); in line_info()
1189 if (info->signals & SerialSignal_RTS) in line_info()
1191 if (info->signals & SerialSignal_CTS) in line_info()
1193 if (info->signals & SerialSignal_DTR) in line_info()
1195 if (info->signals & SerialSignal_DSR) in line_info()
1197 if (info->signals & SerialSignal_DCD) in line_info()
1199 if (info->signals & SerialSignal_RI) in line_info()
1202 if (info->params.mode != MGSL_MODE_ASYNC) { in line_info()
1204 info->icount.txok, info->icount.rxok); in line_info()
1205 if (info->icount.txunder) in line_info()
1206 seq_printf(m, " txunder:%d", info->icount.txunder); in line_info()
1207 if (info->icount.txabort) in line_info()
1208 seq_printf(m, " txabort:%d", info->icount.txabort); in line_info()
1209 if (info->icount.rxshort) in line_info()
1210 seq_printf(m, " rxshort:%d", info->icount.rxshort); in line_info()
1211 if (info->icount.rxlong) in line_info()
1212 seq_printf(m, " rxlong:%d", info->icount.rxlong); in line_info()
1213 if (info->icount.rxover) in line_info()
1214 seq_printf(m, " rxover:%d", info->icount.rxover); in line_info()
1215 if (info->icount.rxcrc) in line_info()
1216 seq_printf(m, " rxcrc:%d", info->icount.rxcrc); in line_info()
1219 info->icount.tx, info->icount.rx); in line_info()
1220 if (info->icount.frame) in line_info()
1221 seq_printf(m, " fe:%d", info->icount.frame); in line_info()
1222 if (info->icount.parity) in line_info()
1223 seq_printf(m, " pe:%d", info->icount.parity); in line_info()
1224 if (info->icount.brk) in line_info()
1225 seq_printf(m, " brk:%d", info->icount.brk); in line_info()
1226 if (info->icount.overrun) in line_info()
1227 seq_printf(m, " oe:%d", info->icount.overrun); in line_info()
1234 info->tx_active,info->bh_requested,info->bh_running, in line_info()
1235 info->pending_bh); in line_info()
1249 info = info->next_device; in synclink_gt_proc_show()
1259 struct slgt_info *info = tty->driver_data; in chars_in_buffer()
1261 if (sanity_check(info, tty->name, "chars_in_buffer")) in chars_in_buffer()
1264 DBGINFO(("%s chars_in_buffer()=%u\n", info->device_name, count)); in chars_in_buffer()
1273 struct slgt_info *info = tty->driver_data; in throttle()
1276 if (sanity_check(info, tty->name, "throttle")) in throttle()
1278 DBGINFO(("%s throttle\n", info->device_name)); in throttle()
1282 spin_lock_irqsave(&info->lock,flags); in throttle()
1283 info->signals &= ~SerialSignal_RTS; in throttle()
1285 spin_unlock_irqrestore(&info->lock,flags); in throttle()
1294 struct slgt_info *info = tty->driver_data; in unthrottle()
1297 if (sanity_check(info, tty->name, "unthrottle")) in unthrottle()
1299 DBGINFO(("%s unthrottle\n", info->device_name)); in unthrottle()
1301 if (info->x_char) in unthrottle()
1302 info->x_char = 0; in unthrottle()
1307 spin_lock_irqsave(&info->lock,flags); in unthrottle()
1308 info->signals |= SerialSignal_RTS; in unthrottle()
1310 spin_unlock_irqrestore(&info->lock,flags); in unthrottle()
1316 * break_state -1=set break condition, 0=clear
1320 struct slgt_info *info = tty->driver_data; in set_break()
1324 if (sanity_check(info, tty->name, "set_break")) in set_break()
1325 return -EINVAL; in set_break()
1326 DBGINFO(("%s set_break(%d)\n", info->device_name, break_state)); in set_break()
1328 spin_lock_irqsave(&info->lock,flags); in set_break()
1330 if (break_state == -1) in set_break()
1335 spin_unlock_irqrestore(&info->lock,flags); in set_break()
1342 * hdlcdev_attach - called by generic HDLC layer when protocol selected (PPP, frame relay, etc.)
1359 if (info->port.count) in hdlcdev_attach()
1360 return -EBUSY; in hdlcdev_attach()
1362 DBGINFO(("%s hdlcdev_attach\n", info->device_name)); in hdlcdev_attach()
1371 default: return -EINVAL; in hdlcdev_attach()
1379 default: return -EINVAL; in hdlcdev_attach()
1382 info->params.encoding = new_encoding; in hdlcdev_attach()
1383 info->params.crc_type = new_crctype; in hdlcdev_attach()
1386 if (info->netcount) in hdlcdev_attach()
1393 * hdlcdev_xmit - called by generic HDLC layer to send a frame
1403 DBGINFO(("%s hdlc_xmit\n", dev->name)); in hdlcdev_xmit()
1405 if (!skb->len) in hdlcdev_xmit()
1412 dev->stats.tx_packets++; in hdlcdev_xmit()
1413 dev->stats.tx_bytes += skb->len; in hdlcdev_xmit()
1418 spin_lock_irqsave(&info->lock, flags); in hdlcdev_xmit()
1419 tx_load(info, skb->data, skb->len); in hdlcdev_xmit()
1420 spin_unlock_irqrestore(&info->lock, flags); in hdlcdev_xmit()
1429 * hdlcdev_open - called by network layer when interface enabled
1443 return -EBUSY; in hdlcdev_open()
1445 DBGINFO(("%s hdlcdev_open\n", dev->name)); in hdlcdev_open()
1453 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_open()
1454 if (info->port.count != 0 || info->netcount != 0) { in hdlcdev_open()
1455 DBGINFO(("%s hdlc_open busy\n", dev->name)); in hdlcdev_open()
1456 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1457 return -EBUSY; in hdlcdev_open()
1459 info->netcount=1; in hdlcdev_open()
1460 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1464 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_open()
1465 info->netcount=0; in hdlcdev_open()
1466 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1471 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in hdlcdev_open()
1478 /* inform generic HDLC layer of current DCD status */ in hdlcdev_open()
1479 spin_lock_irqsave(&info->lock, flags); in hdlcdev_open()
1481 spin_unlock_irqrestore(&info->lock, flags); in hdlcdev_open()
1482 if (info->signals & SerialSignal_DCD) in hdlcdev_open()
1490 * hdlcdev_close - called by network layer when interface is disabled
1502 DBGINFO(("%s hdlcdev_close\n", dev->name)); in hdlcdev_close()
1511 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_close()
1512 info->netcount=0; in hdlcdev_close()
1513 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_close()
1520 * hdlcdev_ioctl - called by network layer to process IOCTL call to network device
1531 sync_serial_settings __user *line = ifs->ifs_ifsu.sync; in hdlcdev_ioctl()
1535 DBGINFO(("%s hdlcdev_ioctl\n", dev->name)); in hdlcdev_ioctl()
1538 if (info->port.count) in hdlcdev_ioctl()
1539 return -EBUSY; in hdlcdev_ioctl()
1543 switch (ifs->type) { in hdlcdev_ioctl()
1546 ifs->type = IF_IFACE_SYNC_SERIAL; in hdlcdev_ioctl()
1547 if (ifs->size < size) { in hdlcdev_ioctl()
1548 ifs->size = size; /* data size wanted */ in hdlcdev_ioctl()
1549 return -ENOBUFS; in hdlcdev_ioctl()
1552 flags = info->params.flags & (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL | in hdlcdev_ioctl()
1565 new_line.clock_rate = info->params.clock_speed; in hdlcdev_ioctl()
1566 new_line.loopback = info->params.loopback ? 1:0; in hdlcdev_ioctl()
1569 return -EFAULT; in hdlcdev_ioctl()
1575 return -EPERM; in hdlcdev_ioctl()
1577 return -EFAULT; in hdlcdev_ioctl()
1585 case CLOCK_DEFAULT: flags = info->params.flags & in hdlcdev_ioctl()
1590 default: return -EINVAL; in hdlcdev_ioctl()
1594 return -EINVAL; in hdlcdev_ioctl()
1596 info->params.flags &= ~(HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL | in hdlcdev_ioctl()
1600 info->params.flags |= flags; in hdlcdev_ioctl()
1602 info->params.loopback = new_line.loopback; in hdlcdev_ioctl()
1605 info->params.clock_speed = new_line.clock_rate; in hdlcdev_ioctl()
1607 info->params.clock_speed = 0; in hdlcdev_ioctl()
1610 if (info->netcount) in hdlcdev_ioctl()
1620 * hdlcdev_tx_timeout - called by network layer when transmit timeout is detected
1629 DBGINFO(("%s hdlcdev_tx_timeout\n", dev->name)); in hdlcdev_tx_timeout()
1631 dev->stats.tx_errors++; in hdlcdev_tx_timeout()
1632 dev->stats.tx_aborted_errors++; in hdlcdev_tx_timeout()
1634 spin_lock_irqsave(&info->lock,flags); in hdlcdev_tx_timeout()
1636 spin_unlock_irqrestore(&info->lock,flags); in hdlcdev_tx_timeout()
1642 * hdlcdev_tx_done - called by device driver when transmit completes
1649 if (netif_queue_stopped(info->netdev)) in hdlcdev_tx_done()
1650 netif_wake_queue(info->netdev); in hdlcdev_tx_done()
1654 * hdlcdev_rx - called by device driver when frame received
1664 struct net_device *dev = info->netdev; in hdlcdev_rx()
1666 DBGINFO(("%s hdlcdev_rx\n", dev->name)); in hdlcdev_rx()
1669 DBGERR(("%s: can't alloc skb, drop packet\n", dev->name)); in hdlcdev_rx()
1670 dev->stats.rx_dropped++; in hdlcdev_rx()
1676 skb->protocol = hdlc_type_trans(skb, dev); in hdlcdev_rx()
1678 dev->stats.rx_packets++; in hdlcdev_rx()
1679 dev->stats.rx_bytes += size; in hdlcdev_rx()
1693 * hdlcdev_init - called by device driver when adding device instance
1710 printk(KERN_ERR "%s hdlc device alloc failure\n", info->device_name); in hdlcdev_init()
1711 return -ENOMEM; in hdlcdev_init()
1715 dev->mem_start = info->phys_reg_addr; in hdlcdev_init()
1716 dev->mem_end = info->phys_reg_addr + SLGT_REG_SIZE - 1; in hdlcdev_init()
1717 dev->irq = info->irq_level; in hdlcdev_init()
1720 dev->netdev_ops = &hdlcdev_ops; in hdlcdev_init()
1721 dev->watchdog_timeo = 10 * HZ; in hdlcdev_init()
1722 dev->tx_queue_len = 50; in hdlcdev_init()
1726 hdlc->attach = hdlcdev_attach; in hdlcdev_init()
1727 hdlc->xmit = hdlcdev_xmit; in hdlcdev_init()
1737 info->netdev = dev; in hdlcdev_init()
1742 * hdlcdev_exit - called by device driver when removing device instance
1749 unregister_hdlc_device(info->netdev); in hdlcdev_exit()
1750 free_netdev(info->netdev); in hdlcdev_exit()
1751 info->netdev = NULL; in hdlcdev_exit()
1761 struct mgsl_icount *icount = &info->icount; in rx_async()
1765 struct slgt_desc *bufs = info->rbufs; in rx_async()
1771 start = end = info->rbuf_current; in rx_async()
1774 count = desc_count(bufs[end]) - info->rbuf_index; in rx_async()
1775 p = bufs[end].buf + info->rbuf_index; in rx_async()
1777 DBGISR(("%s rx_async count=%d\n", info->device_name, count)); in rx_async()
1782 icount->rx++; in rx_async()
1789 icount->parity++; in rx_async()
1791 icount->frame++; in rx_async()
1793 if (status & info->ignore_status_mask) in rx_async()
1800 tty_insert_flip_char(&info->port, ch, stat); in rx_async()
1806 info->rbuf_index += i; in rx_async()
1807 mod_timer(&info->rx_timer, jiffies + 1); in rx_async()
1811 info->rbuf_index = 0; in rx_async()
1814 if (++end == info->rbuf_count) in rx_async()
1823 tty_flip_buffer_push(&info->port); in rx_async()
1834 spin_lock_irqsave(&info->lock,flags); in bh_action()
1836 if (info->pending_bh & BH_RECEIVE) { in bh_action()
1837 info->pending_bh &= ~BH_RECEIVE; in bh_action()
1839 } else if (info->pending_bh & BH_TRANSMIT) { in bh_action()
1840 info->pending_bh &= ~BH_TRANSMIT; in bh_action()
1842 } else if (info->pending_bh & BH_STATUS) { in bh_action()
1843 info->pending_bh &= ~BH_STATUS; in bh_action()
1847 info->bh_running = false; in bh_action()
1848 info->bh_requested = false; in bh_action()
1852 spin_unlock_irqrestore(&info->lock,flags); in bh_action()
1865 info->bh_running = true; in bh_handler()
1870 DBGBH(("%s bh receive\n", info->device_name)); in bh_handler()
1871 switch(info->params.mode) { in bh_handler()
1886 if (info->rx_restart) in bh_handler()
1893 DBGBH(("%s bh status\n", info->device_name)); in bh_handler()
1894 info->ri_chkcount = 0; in bh_handler()
1895 info->dsr_chkcount = 0; in bh_handler()
1896 info->dcd_chkcount = 0; in bh_handler()
1897 info->cts_chkcount = 0; in bh_handler()
1900 DBGBH(("%s unknown action\n", info->device_name)); in bh_handler()
1904 DBGBH(("%s bh_handler exit\n", info->device_name)); in bh_handler()
1909 struct tty_struct *tty = info->port.tty; in bh_transmit()
1911 DBGBH(("%s bh_transmit\n", info->device_name)); in bh_transmit()
1919 info->signals |= SerialSignal_DSR; in dsr_change()
1920 info->input_signal_events.dsr_up++; in dsr_change()
1922 info->signals &= ~SerialSignal_DSR; in dsr_change()
1923 info->input_signal_events.dsr_down++; in dsr_change()
1925 DBGISR(("dsr_change %s signals=%04X\n", info->device_name, info->signals)); in dsr_change()
1926 if ((info->dsr_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in dsr_change()
1930 info->icount.dsr++; in dsr_change()
1931 wake_up_interruptible(&info->status_event_wait_q); in dsr_change()
1932 wake_up_interruptible(&info->event_wait_q); in dsr_change()
1933 info->pending_bh |= BH_STATUS; in dsr_change()
1939 info->signals |= SerialSignal_CTS; in cts_change()
1940 info->input_signal_events.cts_up++; in cts_change()
1942 info->signals &= ~SerialSignal_CTS; in cts_change()
1943 info->input_signal_events.cts_down++; in cts_change()
1945 DBGISR(("cts_change %s signals=%04X\n", info->device_name, info->signals)); in cts_change()
1946 if ((info->cts_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in cts_change()
1950 info->icount.cts++; in cts_change()
1951 wake_up_interruptible(&info->status_event_wait_q); in cts_change()
1952 wake_up_interruptible(&info->event_wait_q); in cts_change()
1953 info->pending_bh |= BH_STATUS; in cts_change()
1955 if (tty_port_cts_enabled(&info->port)) { in cts_change()
1956 if (info->port.tty) { in cts_change()
1957 if (info->port.tty->hw_stopped) { in cts_change()
1958 if (info->signals & SerialSignal_CTS) { in cts_change()
1959 info->port.tty->hw_stopped = 0; in cts_change()
1960 info->pending_bh |= BH_TRANSMIT; in cts_change()
1964 if (!(info->signals & SerialSignal_CTS)) in cts_change()
1965 info->port.tty->hw_stopped = 1; in cts_change()
1974 info->signals |= SerialSignal_DCD; in dcd_change()
1975 info->input_signal_events.dcd_up++; in dcd_change()
1977 info->signals &= ~SerialSignal_DCD; in dcd_change()
1978 info->input_signal_events.dcd_down++; in dcd_change()
1980 DBGISR(("dcd_change %s signals=%04X\n", info->device_name, info->signals)); in dcd_change()
1981 if ((info->dcd_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in dcd_change()
1985 info->icount.dcd++; in dcd_change()
1987 if (info->netcount) { in dcd_change()
1988 if (info->signals & SerialSignal_DCD) in dcd_change()
1989 netif_carrier_on(info->netdev); in dcd_change()
1991 netif_carrier_off(info->netdev); in dcd_change()
1994 wake_up_interruptible(&info->status_event_wait_q); in dcd_change()
1995 wake_up_interruptible(&info->event_wait_q); in dcd_change()
1996 info->pending_bh |= BH_STATUS; in dcd_change()
1998 if (tty_port_check_carrier(&info->port)) { in dcd_change()
1999 if (info->signals & SerialSignal_DCD) in dcd_change()
2000 wake_up_interruptible(&info->port.open_wait); in dcd_change()
2002 if (info->port.tty) in dcd_change()
2003 tty_hangup(info->port.tty); in dcd_change()
2011 info->signals |= SerialSignal_RI; in ri_change()
2012 info->input_signal_events.ri_up++; in ri_change()
2014 info->signals &= ~SerialSignal_RI; in ri_change()
2015 info->input_signal_events.ri_down++; in ri_change()
2017 DBGISR(("ri_change %s signals=%04X\n", info->device_name, info->signals)); in ri_change()
2018 if ((info->ri_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in ri_change()
2022 info->icount.rng++; in ri_change()
2023 wake_up_interruptible(&info->status_event_wait_q); in ri_change()
2024 wake_up_interruptible(&info->event_wait_q); in ri_change()
2025 info->pending_bh |= BH_STATUS; in ri_change()
2030 unsigned int count = info->rbuf_fill_count; in isr_rxdata()
2031 unsigned int i = info->rbuf_fill_index; in isr_rxdata()
2036 DBGISR(("isr_rxdata %s RDR=%04X\n", info->device_name, reg)); in isr_rxdata()
2037 if (desc_complete(info->rbufs[i])) { in isr_rxdata()
2040 info->rx_restart = true; in isr_rxdata()
2043 info->rbufs[i].buf[count++] = (unsigned char)reg; in isr_rxdata()
2045 if (info->params.mode == MGSL_MODE_ASYNC) in isr_rxdata()
2046 info->rbufs[i].buf[count++] = (unsigned char)(reg >> 8); in isr_rxdata()
2047 if (count == info->rbuf_fill_level || (reg & BIT10)) { in isr_rxdata()
2049 set_desc_count(info->rbufs[i], count); in isr_rxdata()
2050 set_desc_status(info->rbufs[i], BIT15 | (reg >> 8)); in isr_rxdata()
2051 info->rbuf_fill_count = count = 0; in isr_rxdata()
2052 if (++i == info->rbuf_count) in isr_rxdata()
2054 info->pending_bh |= BH_RECEIVE; in isr_rxdata()
2058 info->rbuf_fill_index = i; in isr_rxdata()
2059 info->rbuf_fill_count = count; in isr_rxdata()
2066 DBGISR(("%s isr_serial status=%04X\n", info->device_name, status)); in isr_serial()
2070 info->irq_occurred = true; in isr_serial()
2072 if (info->params.mode == MGSL_MODE_ASYNC) { in isr_serial()
2074 if (info->tx_active) in isr_serial()
2077 if (info->rx_pio && (status & IRQ_RXDATA)) in isr_serial()
2080 info->icount.brk++; in isr_serial()
2082 if (info->port.tty) { in isr_serial()
2083 if (!(status & info->ignore_status_mask)) { in isr_serial()
2084 if (info->read_status_mask & MASK_BREAK) { in isr_serial()
2085 tty_insert_flip_char(&info->port, 0, TTY_BREAK); in isr_serial()
2086 if (info->port.flags & ASYNC_SAK) in isr_serial()
2087 do_SAK(info->port.tty); in isr_serial()
2095 if (info->rx_pio && (status & IRQ_RXDATA)) in isr_serial()
2099 info->icount.rxidle++; in isr_serial()
2101 info->icount.exithunt++; in isr_serial()
2102 wake_up_interruptible(&info->event_wait_q); in isr_serial()
2123 DBGISR(("%s isr_rdma status=%08x\n", info->device_name, status)); in isr_rdma()
2139 DBGISR(("%s isr_rdma rx_restart=1\n", info->device_name)); in isr_rdma()
2140 info->rx_restart = true; in isr_rdma()
2142 info->pending_bh |= BH_RECEIVE; in isr_rdma()
2149 DBGISR(("%s isr_tdma status=%08x\n", info->device_name, status)); in isr_tdma()
2166 info->pending_bh |= BH_TRANSMIT; in isr_tdma()
2173 * if there are unsent buffers then info->tbuf_start
2178 unsigned int i = info->tbuf_current; in unsent_tbufs()
2188 i--; in unsent_tbufs()
2190 i = info->tbuf_count - 1; in unsent_tbufs()
2191 if (!desc_count(info->tbufs[i])) in unsent_tbufs()
2193 info->tbuf_start = i; in unsent_tbufs()
2195 } while (i != info->tbuf_current); in unsent_tbufs()
2202 DBGISR(("%s txeom status=%04x\n", info->device_name, status)); in isr_txeom()
2212 if (info->tx_active) { in isr_txeom()
2213 if (info->params.mode != MGSL_MODE_ASYNC) { in isr_txeom()
2215 info->icount.txunder++; in isr_txeom()
2217 info->icount.txok++; in isr_txeom()
2225 info->tx_active = false; in isr_txeom()
2227 del_timer(&info->tx_timer); in isr_txeom()
2229 if (info->params.mode != MGSL_MODE_ASYNC && info->drop_rts_on_tx_done) { in isr_txeom()
2230 info->signals &= ~SerialSignal_RTS; in isr_txeom()
2231 info->drop_rts_on_tx_done = false; in isr_txeom()
2236 if (info->netcount) in isr_txeom()
2241 if (info->port.tty && (info->port.tty->flow.stopped || info->port.tty->hw_stopped)) { in isr_txeom()
2245 info->pending_bh |= BH_TRANSMIT; in isr_txeom()
2255 for (w = info->gpio_wait_q, prev = NULL ; w != NULL ; w = w->next) { in isr_gpio()
2256 if (w->data & changed) { in isr_gpio()
2257 w->data = state; in isr_gpio()
2258 wake_up_interruptible(&w->q); in isr_gpio()
2260 prev->next = w->next; in isr_gpio()
2262 info->gpio_wait_q = w->next; in isr_gpio()
2279 DBGISR(("slgt_interrupt irq=%d entry\n", info->irq_level)); in slgt_interrupt()
2282 DBGISR(("%s gsr=%08x\n", info->device_name, gsr)); in slgt_interrupt()
2283 info->irq_occurred = true; in slgt_interrupt()
2284 for(i=0; i < info->port_count ; i++) { in slgt_interrupt()
2285 if (info->port_array[i] == NULL) in slgt_interrupt()
2287 spin_lock(&info->port_array[i]->lock); in slgt_interrupt()
2289 isr_serial(info->port_array[i]); in slgt_interrupt()
2291 isr_rdma(info->port_array[i]); in slgt_interrupt()
2293 isr_tdma(info->port_array[i]); in slgt_interrupt()
2294 spin_unlock(&info->port_array[i]->lock); in slgt_interrupt()
2298 if (info->gpio_present) { in slgt_interrupt()
2301 spin_lock(&info->lock); in slgt_interrupt()
2303 DBGISR(("%s iosr=%08x\n", info->device_name, changed)); in slgt_interrupt()
2308 for (i=0 ; i < info->port_count ; i++) { in slgt_interrupt()
2309 if (info->port_array[i] != NULL) in slgt_interrupt()
2310 isr_gpio(info->port_array[i], changed, state); in slgt_interrupt()
2313 spin_unlock(&info->lock); in slgt_interrupt()
2316 for(i=0; i < info->port_count ; i++) { in slgt_interrupt()
2317 struct slgt_info *port = info->port_array[i]; in slgt_interrupt()
2320 spin_lock(&port->lock); in slgt_interrupt()
2321 if ((port->port.count || port->netcount) && in slgt_interrupt()
2322 port->pending_bh && !port->bh_running && in slgt_interrupt()
2323 !port->bh_requested) { in slgt_interrupt()
2324 DBGISR(("%s bh queued\n", port->device_name)); in slgt_interrupt()
2325 schedule_work(&port->task); in slgt_interrupt()
2326 port->bh_requested = true; in slgt_interrupt()
2328 spin_unlock(&port->lock); in slgt_interrupt()
2331 DBGISR(("slgt_interrupt irq=%d exit\n", info->irq_level)); in slgt_interrupt()
2337 DBGINFO(("%s startup\n", info->device_name)); in startup()
2339 if (tty_port_initialized(&info->port)) in startup()
2342 if (!info->tx_buf) { in startup()
2343 info->tx_buf = kmalloc(info->max_frame_size, GFP_KERNEL); in startup()
2344 if (!info->tx_buf) { in startup()
2345 DBGERR(("%s can't allocate tx buffer\n", info->device_name)); in startup()
2346 return -ENOMEM; in startup()
2350 info->pending_bh = 0; in startup()
2352 memset(&info->icount, 0, sizeof(info->icount)); in startup()
2357 if (info->port.tty) in startup()
2358 clear_bit(TTY_IO_ERROR, &info->port.tty->flags); in startup()
2360 tty_port_set_initialized(&info->port, 1); in startup()
2372 if (!tty_port_initialized(&info->port)) in shutdown()
2375 DBGINFO(("%s shutdown\n", info->device_name)); in shutdown()
2379 wake_up_interruptible(&info->status_event_wait_q); in shutdown()
2380 wake_up_interruptible(&info->event_wait_q); in shutdown()
2382 del_timer_sync(&info->tx_timer); in shutdown()
2383 del_timer_sync(&info->rx_timer); in shutdown()
2385 kfree(info->tx_buf); in shutdown()
2386 info->tx_buf = NULL; in shutdown()
2388 spin_lock_irqsave(&info->lock,flags); in shutdown()
2395 if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) { in shutdown()
2396 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in shutdown()
2400 flush_cond_wait(&info->gpio_wait_q); in shutdown()
2402 spin_unlock_irqrestore(&info->lock,flags); in shutdown()
2404 if (info->port.tty) in shutdown()
2405 set_bit(TTY_IO_ERROR, &info->port.tty->flags); in shutdown()
2407 tty_port_set_initialized(&info->port, 0); in shutdown()
2414 spin_lock_irqsave(&info->lock,flags); in program_hw()
2419 if (info->params.mode != MGSL_MODE_ASYNC || in program_hw()
2420 info->netcount) in program_hw()
2427 info->dcd_chkcount = 0; in program_hw()
2428 info->cts_chkcount = 0; in program_hw()
2429 info->ri_chkcount = 0; in program_hw()
2430 info->dsr_chkcount = 0; in program_hw()
2435 if (info->netcount || in program_hw()
2436 (info->port.tty && info->port.tty->termios.c_cflag & CREAD)) in program_hw()
2439 spin_unlock_irqrestore(&info->lock,flags); in program_hw()
2450 if (!info->port.tty) in change_params()
2452 DBGINFO(("%s change_params\n", info->device_name)); in change_params()
2454 cflag = info->port.tty->termios.c_cflag; in change_params()
2459 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in change_params()
2461 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in change_params()
2465 info->params.data_bits = tty_get_char_size(cflag); in change_params()
2466 info->params.stop_bits = (cflag & CSTOPB) ? 2 : 1; in change_params()
2469 info->params.parity = (cflag & PARODD) ? ASYNC_PARITY_ODD : ASYNC_PARITY_EVEN; in change_params()
2471 info->params.parity = ASYNC_PARITY_NONE; in change_params()
2476 bits_per_char = info->params.data_bits + in change_params()
2477 info->params.stop_bits + 1; in change_params()
2479 info->params.data_rate = tty_get_baud_rate(info->port.tty); in change_params()
2481 if (info->params.data_rate) { in change_params()
2482 info->timeout = (32*HZ*bits_per_char) / in change_params()
2483 info->params.data_rate; in change_params()
2485 info->timeout += HZ/50; /* Add .02 seconds of slop */ in change_params()
2487 tty_port_set_cts_flow(&info->port, cflag & CRTSCTS); in change_params()
2488 tty_port_set_check_carrier(&info->port, ~cflag & CLOCAL); in change_params()
2492 info->read_status_mask = IRQ_RXOVER; in change_params()
2493 if (I_INPCK(info->port.tty)) in change_params()
2494 info->read_status_mask |= MASK_PARITY | MASK_FRAMING; in change_params()
2495 if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty)) in change_params()
2496 info->read_status_mask |= MASK_BREAK; in change_params()
2497 if (I_IGNPAR(info->port.tty)) in change_params()
2498 info->ignore_status_mask |= MASK_PARITY | MASK_FRAMING; in change_params()
2499 if (I_IGNBRK(info->port.tty)) { in change_params()
2500 info->ignore_status_mask |= MASK_BREAK; in change_params()
2504 if (I_IGNPAR(info->port.tty)) in change_params()
2505 info->ignore_status_mask |= MASK_OVERRUN; in change_params()
2513 DBGINFO(("%s get_stats\n", info->device_name)); in get_stats()
2515 memset(&info->icount, 0, sizeof(info->icount)); in get_stats()
2517 if (copy_to_user(user_icount, &info->icount, sizeof(struct mgsl_icount))) in get_stats()
2518 return -EFAULT; in get_stats()
2525 DBGINFO(("%s get_params\n", info->device_name)); in get_params()
2526 if (copy_to_user(user_params, &info->params, sizeof(MGSL_PARAMS))) in get_params()
2527 return -EFAULT; in get_params()
2536 DBGINFO(("%s set_params\n", info->device_name)); in set_params()
2538 return -EFAULT; in set_params()
2540 spin_lock_irqsave(&info->lock, flags); in set_params()
2542 info->base_clock = tmp_params.clock_speed; in set_params()
2544 memcpy(&info->params, &tmp_params, sizeof(MGSL_PARAMS)); in set_params()
2545 spin_unlock_irqrestore(&info->lock, flags); in set_params()
2554 DBGINFO(("%s get_txidle=%d\n", info->device_name, info->idle_mode)); in get_txidle()
2555 if (put_user(info->idle_mode, idle_mode)) in get_txidle()
2556 return -EFAULT; in get_txidle()
2563 DBGINFO(("%s set_txidle(%d)\n", info->device_name, idle_mode)); in set_txidle()
2564 spin_lock_irqsave(&info->lock,flags); in set_txidle()
2565 info->idle_mode = idle_mode; in set_txidle()
2566 if (info->params.mode != MGSL_MODE_ASYNC) in set_txidle()
2568 spin_unlock_irqrestore(&info->lock,flags); in set_txidle()
2575 DBGINFO(("%s tx_enable(%d)\n", info->device_name, enable)); in tx_enable()
2576 spin_lock_irqsave(&info->lock,flags); in tx_enable()
2578 if (!info->tx_enabled) in tx_enable()
2581 if (info->tx_enabled) in tx_enable()
2584 spin_unlock_irqrestore(&info->lock,flags); in tx_enable()
2594 DBGINFO(("%s tx_abort\n", info->device_name)); in tx_abort()
2595 spin_lock_irqsave(&info->lock,flags); in tx_abort()
2597 spin_unlock_irqrestore(&info->lock,flags); in tx_abort()
2605 DBGINFO(("%s rx_enable(%08x)\n", info->device_name, enable)); in rx_enable()
2606 spin_lock_irqsave(&info->lock,flags); in rx_enable()
2615 spin_unlock_irqrestore(&info->lock, flags); in rx_enable()
2616 return -EINVAL; in rx_enable()
2618 info->rbuf_fill_level = rbuf_fill_level; in rx_enable()
2620 info->rx_pio = 1; /* PIO mode */ in rx_enable()
2622 info->rx_pio = 0; /* DMA mode */ in rx_enable()
2634 if (!info->rx_enabled) in rx_enable()
2641 if (info->rx_enabled) in rx_enable()
2644 spin_unlock_irqrestore(&info->lock,flags); in rx_enable()
2663 return -EFAULT; in wait_mgsl_event()
2665 DBGINFO(("%s wait_mgsl_event(%d)\n", info->device_name, mask)); in wait_mgsl_event()
2667 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2671 s = info->signals; in wait_mgsl_event()
2679 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2684 cprev = info->icount; in wait_mgsl_event()
2685 oldsigs = info->input_signal_events; in wait_mgsl_event()
2695 add_wait_queue(&info->event_wait_q, &wait); in wait_mgsl_event()
2697 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2702 rc = -ERESTARTSYS; in wait_mgsl_event()
2707 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2708 cnow = info->icount; in wait_mgsl_event()
2709 newsigs = info->input_signal_events; in wait_mgsl_event()
2711 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2724 rc = -EIO; in wait_mgsl_event()
2746 remove_wait_queue(&info->event_wait_q, &wait); in wait_mgsl_event()
2751 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2752 if (!waitqueue_active(&info->event_wait_q)) { in wait_mgsl_event()
2757 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2767 DBGINFO(("%s get_interface=%x\n", info->device_name, info->if_mode)); in get_interface()
2768 if (put_user(info->if_mode, if_mode)) in get_interface()
2769 return -EFAULT; in get_interface()
2778 DBGINFO(("%s set_interface=%x)\n", info->device_name, if_mode)); in set_interface()
2779 spin_lock_irqsave(&info->lock,flags); in set_interface()
2780 info->if_mode = if_mode; in set_interface()
2786 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in set_interface()
2792 spin_unlock_irqrestore(&info->lock,flags); in set_interface()
2798 DBGINFO(("%s get_xsync=%x\n", info->device_name, info->xsync)); in get_xsync()
2799 if (put_user(info->xsync, xsync)) in get_xsync()
2800 return -EFAULT; in get_xsync()
2814 DBGINFO(("%s set_xsync=%x)\n", info->device_name, xsync)); in set_xsync()
2815 spin_lock_irqsave(&info->lock, flags); in set_xsync()
2816 info->xsync = xsync; in set_xsync()
2818 spin_unlock_irqrestore(&info->lock, flags); in set_xsync()
2824 DBGINFO(("%s get_xctrl=%x\n", info->device_name, info->xctrl)); in get_xctrl()
2825 if (put_user(info->xctrl, xctrl)) in get_xctrl()
2826 return -EFAULT; in get_xctrl()
2851 DBGINFO(("%s set_xctrl=%x)\n", info->device_name, xctrl)); in set_xctrl()
2852 spin_lock_irqsave(&info->lock, flags); in set_xctrl()
2853 info->xctrl = xctrl; in set_xctrl()
2855 spin_unlock_irqrestore(&info->lock, flags); in set_xctrl()
2874 if (!info->gpio_present) in set_gpio()
2875 return -EINVAL; in set_gpio()
2877 return -EFAULT; in set_gpio()
2879 info->device_name, gpio.state, gpio.smask, in set_gpio()
2882 spin_lock_irqsave(&info->port_array[0]->lock, flags); in set_gpio()
2895 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in set_gpio()
2906 if (!info->gpio_present) in get_gpio()
2907 return -EINVAL; in get_gpio()
2913 return -EFAULT; in get_gpio()
2915 info->device_name, gpio.state, gpio.dir)); in get_gpio()
2924 init_waitqueue_head(&w->q); in init_cond_wait()
2925 init_waitqueue_entry(&w->wait, current); in init_cond_wait()
2926 w->data = data; in init_cond_wait()
2932 add_wait_queue(&w->q, &w->wait); in add_cond_wait()
2933 w->next = *head; in add_cond_wait()
2940 remove_wait_queue(&cw->q, &cw->wait); in remove_cond_wait()
2942 for (w = *head, prev = NULL ; w != NULL ; prev = w, w = w->next) { in remove_cond_wait()
2945 prev->next = w->next; in remove_cond_wait()
2947 *head = w->next; in remove_cond_wait()
2956 wake_up_interruptible(&(*head)->q); in flush_cond_wait()
2957 *head = (*head)->next; in flush_cond_wait()
2965 * state - bit indicates target pin state
2966 * smask - set bit indicates watched pin
2969 * state. When 0 (no error) is returned, user_gpio->state is set to the
2985 if (!info->gpio_present) in wait_gpio()
2986 return -EINVAL; in wait_gpio()
2988 return -EFAULT; in wait_gpio()
2990 info->device_name, gpio.state, gpio.smask)); in wait_gpio()
2993 return -EINVAL; in wait_gpio()
2996 spin_lock_irqsave(&info->port_array[0]->lock, flags); in wait_gpio()
3007 add_cond_wait(&info->gpio_wait_q, &wait); in wait_gpio()
3008 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in wait_gpio()
3011 rc = -ERESTARTSYS; in wait_gpio()
3014 spin_lock_irqsave(&info->port_array[0]->lock, flags); in wait_gpio()
3015 remove_cond_wait(&info->gpio_wait_q, &wait); in wait_gpio()
3019 if (info->gpio_wait_q == NULL) in wait_gpio()
3021 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in wait_gpio()
3024 rc = -EFAULT; in wait_gpio()
3036 spin_lock_irqsave(&info->lock,flags); in modem_input_wait()
3037 cprev = info->icount; in modem_input_wait()
3038 add_wait_queue(&info->status_event_wait_q, &wait); in modem_input_wait()
3040 spin_unlock_irqrestore(&info->lock,flags); in modem_input_wait()
3045 rc = -ERESTARTSYS; in modem_input_wait()
3050 spin_lock_irqsave(&info->lock,flags); in modem_input_wait()
3051 cnow = info->icount; in modem_input_wait()
3053 spin_unlock_irqrestore(&info->lock,flags); in modem_input_wait()
3057 cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) { in modem_input_wait()
3058 rc = -EIO; in modem_input_wait()
3065 (arg & TIOCM_CD && cnow.dcd != cprev.dcd) || in modem_input_wait()
3073 remove_wait_queue(&info->status_event_wait_q, &wait); in modem_input_wait()
3083 struct slgt_info *info = tty->driver_data; in tiocmget()
3087 spin_lock_irqsave(&info->lock,flags); in tiocmget()
3089 spin_unlock_irqrestore(&info->lock,flags); in tiocmget()
3091 result = ((info->signals & SerialSignal_RTS) ? TIOCM_RTS:0) + in tiocmget()
3092 ((info->signals & SerialSignal_DTR) ? TIOCM_DTR:0) + in tiocmget()
3093 ((info->signals & SerialSignal_DCD) ? TIOCM_CAR:0) + in tiocmget()
3094 ((info->signals & SerialSignal_RI) ? TIOCM_RNG:0) + in tiocmget()
3095 ((info->signals & SerialSignal_DSR) ? TIOCM_DSR:0) + in tiocmget()
3096 ((info->signals & SerialSignal_CTS) ? TIOCM_CTS:0); in tiocmget()
3098 DBGINFO(("%s tiocmget value=%08X\n", info->device_name, result)); in tiocmget()
3112 struct slgt_info *info = tty->driver_data; in tiocmset()
3115 DBGINFO(("%s tiocmset(%x,%x)\n", info->device_name, set, clear)); in tiocmset()
3118 info->signals |= SerialSignal_RTS; in tiocmset()
3120 info->signals |= SerialSignal_DTR; in tiocmset()
3122 info->signals &= ~SerialSignal_RTS; in tiocmset()
3124 info->signals &= ~SerialSignal_DTR; in tiocmset()
3126 spin_lock_irqsave(&info->lock,flags); in tiocmset()
3128 spin_unlock_irqrestore(&info->lock,flags); in tiocmset()
3137 spin_lock_irqsave(&info->lock,flags); in carrier_raised()
3139 spin_unlock_irqrestore(&info->lock,flags); in carrier_raised()
3140 return (info->signals & SerialSignal_DCD) ? 1 : 0; in carrier_raised()
3148 spin_lock_irqsave(&info->lock,flags); in dtr_rts()
3150 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in dtr_rts()
3152 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in dtr_rts()
3154 spin_unlock_irqrestore(&info->lock,flags); in dtr_rts()
3169 struct tty_port *port = &info->port; in block_til_ready()
3171 DBGINFO(("%s block_til_ready\n", tty->driver->name)); in block_til_ready()
3173 if (filp->f_flags & O_NONBLOCK || tty_io_error(tty)) { in block_til_ready()
3184 * this loop, port->count is dropped by one, so that in block_til_ready()
3190 add_wait_queue(&port->open_wait, &wait); in block_til_ready()
3192 spin_lock_irqsave(&info->lock, flags); in block_til_ready()
3193 port->count--; in block_til_ready()
3194 spin_unlock_irqrestore(&info->lock, flags); in block_til_ready()
3195 port->blocked_open++; in block_til_ready()
3204 retval = (port->flags & ASYNC_HUP_NOTIFY) ? in block_til_ready()
3205 -EAGAIN : -ERESTARTSYS; in block_til_ready()
3214 retval = -ERESTARTSYS; in block_til_ready()
3218 DBGINFO(("%s block_til_ready wait\n", tty->driver->name)); in block_til_ready()
3225 remove_wait_queue(&port->open_wait, &wait); in block_til_ready()
3228 port->count++; in block_til_ready()
3229 port->blocked_open--; in block_til_ready()
3234 DBGINFO(("%s block_til_ready ready, rc=%d\n", tty->driver->name, retval)); in block_til_ready()
3242 * 32-bit CRC and status byte when configured to do so
3246 info->tmp_rbuf = kmalloc(info->max_frame_size + 5, GFP_KERNEL); in alloc_tmp_rbuf()
3247 if (info->tmp_rbuf == NULL) in alloc_tmp_rbuf()
3248 return -ENOMEM; in alloc_tmp_rbuf()
3250 info->flag_buf = kzalloc(info->max_frame_size + 5, GFP_KERNEL); in alloc_tmp_rbuf()
3251 if (!info->flag_buf) { in alloc_tmp_rbuf()
3252 kfree(info->tmp_rbuf); in alloc_tmp_rbuf()
3253 info->tmp_rbuf = NULL; in alloc_tmp_rbuf()
3254 return -ENOMEM; in alloc_tmp_rbuf()
3261 kfree(info->tmp_rbuf); in free_tmp_rbuf()
3262 info->tmp_rbuf = NULL; in free_tmp_rbuf()
3263 kfree(info->flag_buf); in free_tmp_rbuf()
3264 info->flag_buf = NULL; in free_tmp_rbuf()
3276 info->bufs = dma_alloc_coherent(&info->pdev->dev, DESC_LIST_SIZE, in alloc_desc()
3277 &info->bufs_dma_addr, GFP_KERNEL); in alloc_desc()
3278 if (info->bufs == NULL) in alloc_desc()
3279 return -ENOMEM; in alloc_desc()
3281 info->rbufs = (struct slgt_desc*)info->bufs; in alloc_desc()
3282 info->tbufs = ((struct slgt_desc*)info->bufs) + info->rbuf_count; in alloc_desc()
3284 pbufs = (unsigned int)info->bufs_dma_addr; in alloc_desc()
3290 for (i=0; i < info->rbuf_count; i++) { in alloc_desc()
3292 info->rbufs[i].pdesc = pbufs + (i * sizeof(struct slgt_desc)); in alloc_desc()
3295 if (i == info->rbuf_count - 1) in alloc_desc()
3296 info->rbufs[i].next = cpu_to_le32(pbufs); in alloc_desc()
3298 info->rbufs[i].next = cpu_to_le32(pbufs + ((i+1) * sizeof(struct slgt_desc))); in alloc_desc()
3299 set_desc_count(info->rbufs[i], DMABUFSIZE); in alloc_desc()
3302 for (i=0; i < info->tbuf_count; i++) { in alloc_desc()
3304 info->tbufs[i].pdesc = pbufs + ((info->rbuf_count + i) * sizeof(struct slgt_desc)); in alloc_desc()
3307 if (i == info->tbuf_count - 1) in alloc_desc()
3308 info->tbufs[i].next = cpu_to_le32(pbufs + info->rbuf_count * sizeof(struct slgt_desc)); in alloc_desc()
3310 …info->tbufs[i].next = cpu_to_le32(pbufs + ((info->rbuf_count + i + 1) * sizeof(struct slgt_desc))); in alloc_desc()
3318 if (info->bufs != NULL) { in free_desc()
3319 dma_free_coherent(&info->pdev->dev, DESC_LIST_SIZE, in free_desc()
3320 info->bufs, info->bufs_dma_addr); in free_desc()
3321 info->bufs = NULL; in free_desc()
3322 info->rbufs = NULL; in free_desc()
3323 info->tbufs = NULL; in free_desc()
3331 bufs[i].buf = dma_alloc_coherent(&info->pdev->dev, DMABUFSIZE, in alloc_bufs()
3334 return -ENOMEM; in alloc_bufs()
3346 dma_free_coherent(&info->pdev->dev, DMABUFSIZE, bufs[i].buf, in free_bufs()
3354 info->rbuf_count = 32; in alloc_dma_bufs()
3355 info->tbuf_count = 32; in alloc_dma_bufs()
3358 alloc_bufs(info, info->rbufs, info->rbuf_count) < 0 || in alloc_dma_bufs()
3359 alloc_bufs(info, info->tbufs, info->tbuf_count) < 0 || in alloc_dma_bufs()
3361 DBGERR(("%s DMA buffer alloc fail\n", info->device_name)); in alloc_dma_bufs()
3362 return -ENOMEM; in alloc_dma_bufs()
3370 if (info->bufs) { in free_dma_bufs()
3371 free_bufs(info, info->rbufs, info->rbuf_count); in free_dma_bufs()
3372 free_bufs(info, info->tbufs, info->tbuf_count); in free_dma_bufs()
3380 if (request_mem_region(info->phys_reg_addr, SLGT_REG_SIZE, "synclink_gt") == NULL) { in claim_resources()
3382 info->device_name, info->phys_reg_addr)); in claim_resources()
3383 info->init_error = DiagStatus_AddressConflict; in claim_resources()
3387 info->reg_addr_requested = true; in claim_resources()
3389 info->reg_addr = ioremap(info->phys_reg_addr, SLGT_REG_SIZE); in claim_resources()
3390 if (!info->reg_addr) { in claim_resources()
3392 info->device_name, info->phys_reg_addr)); in claim_resources()
3393 info->init_error = DiagStatus_CantAssignPciResources; in claim_resources()
3400 return -ENODEV; in claim_resources()
3405 if (info->irq_requested) { in release_resources()
3406 free_irq(info->irq_level, info); in release_resources()
3407 info->irq_requested = false; in release_resources()
3410 if (info->reg_addr_requested) { in release_resources()
3411 release_mem_region(info->phys_reg_addr, SLGT_REG_SIZE); in release_resources()
3412 info->reg_addr_requested = false; in release_resources()
3415 if (info->reg_addr) { in release_resources()
3416 iounmap(info->reg_addr); in release_resources()
3417 info->reg_addr = NULL; in release_resources()
3428 info->next_device = NULL; in add_device()
3429 info->line = slgt_device_count; in add_device()
3430 sprintf(info->device_name, "%s%d", tty_dev_prefix, info->line); in add_device()
3432 if (info->line < MAX_DEVICES) { in add_device()
3433 if (maxframe[info->line]) in add_device()
3434 info->max_frame_size = maxframe[info->line]; in add_device()
3443 while(current_dev->next_device) in add_device()
3444 current_dev = current_dev->next_device; in add_device()
3445 current_dev->next_device = info; in add_device()
3448 if (info->max_frame_size < 4096) in add_device()
3449 info->max_frame_size = 4096; in add_device()
3450 else if (info->max_frame_size > 65535) in add_device()
3451 info->max_frame_size = 65535; in add_device()
3453 switch(info->pdev->device) { in add_device()
3465 info->params.mode = MGSL_MODE_ASYNC; in add_device()
3471 devstr, info->device_name, info->phys_reg_addr, in add_device()
3472 info->irq_level, info->max_frame_size); in add_device()
3497 tty_port_init(&info->port); in alloc_dev()
3498 info->port.ops = &slgt_port_ops; in alloc_dev()
3499 info->magic = MGSL_MAGIC; in alloc_dev()
3500 INIT_WORK(&info->task, bh_handler); in alloc_dev()
3501 info->max_frame_size = 4096; in alloc_dev()
3502 info->base_clock = 14745600; in alloc_dev()
3503 info->rbuf_fill_level = DMABUFSIZE; in alloc_dev()
3504 init_waitqueue_head(&info->status_event_wait_q); in alloc_dev()
3505 init_waitqueue_head(&info->event_wait_q); in alloc_dev()
3506 spin_lock_init(&info->netlock); in alloc_dev()
3507 memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS)); in alloc_dev()
3508 info->idle_mode = HDLC_TXIDLE_FLAGS; in alloc_dev()
3509 info->adapter_num = adapter_num; in alloc_dev()
3510 info->port_num = port_num; in alloc_dev()
3512 timer_setup(&info->tx_timer, tx_timeout, 0); in alloc_dev()
3513 timer_setup(&info->rx_timer, rx_timeout, 0); in alloc_dev()
3516 info->pdev = pdev; in alloc_dev()
3517 info->irq_level = pdev->irq; in alloc_dev()
3518 info->phys_reg_addr = pci_resource_start(pdev,0); in alloc_dev()
3520 info->bus_type = MGSL_BUS_TYPE_PCI; in alloc_dev()
3521 info->irq_flags = IRQF_SHARED; in alloc_dev()
3523 info->init_error = -1; /* assume error, set to 0 on successful init */ in alloc_dev()
3535 if (pdev->device == SYNCLINK_GT2_DEVICE_ID) in device_init()
3537 else if (pdev->device == SYNCLINK_GT4_DEVICE_ID) in device_init()
3544 for (--i; i >= 0; --i) { in device_init()
3545 tty_port_destroy(&port_array[i]->port); in device_init()
3554 memcpy(port_array[i]->port_array, port_array, sizeof(port_array)); in device_init()
3556 port_array[i]->port_count = port_count; in device_init()
3557 spin_lock_init(&port_array[i]->lock); in device_init()
3567 port_array[i]->irq_level = port_array[0]->irq_level; in device_init()
3568 port_array[i]->reg_addr = port_array[0]->reg_addr; in device_init()
3572 if (request_irq(port_array[0]->irq_level, in device_init()
3574 port_array[0]->irq_flags, in device_init()
3575 port_array[0]->device_name, in device_init()
3578 port_array[0]->device_name, in device_init()
3579 port_array[0]->irq_level)); in device_init()
3581 port_array[0]->irq_requested = true; in device_init()
3584 port_array[i]->init_error = port_array[0]->init_error; in device_init()
3585 port_array[i]->gpio_present = port_array[0]->gpio_present; in device_init()
3592 tty_port_register_device(&info->port, serial_driver, info->line, in device_init()
3593 &info->pdev->dev); in device_init()
3602 return -EIO; in init_one()
3647 for (info=slgt_device_list ; info != NULL ; info=info->next_device) in slgt_cleanup()
3648 tty_unregister_device(serial_driver, info->line); in slgt_cleanup()
3657 info = info->next_device; in slgt_cleanup()
3668 if (info->port_num == 0) in slgt_cleanup()
3671 info = info->next_device; in slgt_cleanup()
3672 tty_port_destroy(&tmp->port); in slgt_cleanup()
3698 serial_driver->driver_name = slgt_driver_name; in slgt_init()
3699 serial_driver->name = tty_dev_prefix; in slgt_init()
3700 serial_driver->major = ttymajor; in slgt_init()
3701 serial_driver->minor_start = 64; in slgt_init()
3702 serial_driver->type = TTY_DRIVER_TYPE_SERIAL; in slgt_init()
3703 serial_driver->subtype = SERIAL_TYPE_NORMAL; in slgt_init()
3704 serial_driver->init_termios = tty_std_termios; in slgt_init()
3705 serial_driver->init_termios.c_cflag = in slgt_init()
3707 serial_driver->init_termios.c_ispeed = 9600; in slgt_init()
3708 serial_driver->init_termios.c_ospeed = 9600; in slgt_init()
3718 driver_name, serial_driver->major); in slgt_init()
3750 unsigned long reg_addr = ((unsigned long)info->reg_addr) + addr; \
3752 reg_addr += (info->port_num) * 32; \
3754 reg_addr += (info->port_num) * 16;
3828 if (info->params.mode != MGSL_MODE_ASYNC) { in enable_loopback()
3840 if (info->params.clock_speed) in enable_loopback()
3841 set_rate(info, info->params.clock_speed); in enable_loopback()
3853 unsigned int osc = info->base_clock; in set_rate()
3855 /* div = osc/rate - 1 in set_rate()
3864 div--; in set_rate()
3885 info->rx_enabled = false; in rx_stop()
3886 info->rx_restart = false; in rx_stop()
3906 if (info->rx_pio) { in rx_start()
3910 if (info->params.mode == MGSL_MODE_ASYNC) { in rx_start()
3918 wr_reg32(info, RDDAR, info->rbufs[0].pdesc); in rx_start()
3920 if (info->params.mode != MGSL_MODE_ASYNC) { in rx_start()
3934 info->rx_restart = false; in rx_start()
3935 info->rx_enabled = true; in rx_start()
3940 if (!info->tx_enabled) { in tx_start()
3943 info->tx_enabled = true; in tx_start()
3946 if (desc_count(info->tbufs[info->tbuf_start])) { in tx_start()
3947 info->drop_rts_on_tx_done = false; in tx_start()
3949 if (info->params.mode != MGSL_MODE_ASYNC) { in tx_start()
3950 if (info->params.flags & HDLC_FLAG_AUTO_RTS) { in tx_start()
3952 if (!(info->signals & SerialSignal_RTS)) { in tx_start()
3953 info->signals |= SerialSignal_RTS; in tx_start()
3955 info->drop_rts_on_tx_done = true; in tx_start()
3970 wr_reg32(info, TDDAR, info->tbufs[info->tbuf_start].pdesc); in tx_start()
3972 info->tx_active = true; in tx_start()
3980 del_timer(&info->tx_timer); in tx_stop()
3995 info->tx_enabled = false; in tx_stop()
3996 info->tx_active = false; in tx_stop()
4001 if (!info->reg_addr) in reset_port()
4007 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in reset_port()
4016 for (i=0; i < info->port_count; ++i) { in reset_adapter()
4017 if (info->port_array[i]) in reset_adapter()
4018 reset_port(info->port_array[i]); in reset_adapter()
4046 * 00 auto-CTS enable in async_mode()
4050 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in async_mode()
4053 if (info->params.parity != ASYNC_PARITY_NONE) { in async_mode()
4055 if (info->params.parity == ASYNC_PARITY_ODD) in async_mode()
4059 switch (info->params.data_bits) in async_mode()
4066 if (info->params.stop_bits != 1) in async_mode()
4069 if (info->params.flags & HDLC_FLAG_AUTO_CTS) in async_mode()
4089 * 00 auto-DCD enable in async_mode()
4093 if (info->params.parity != ASYNC_PARITY_NONE) { in async_mode()
4095 if (info->params.parity == ASYNC_PARITY_ODD) in async_mode()
4099 switch (info->params.data_bits) in async_mode()
4106 if (info->params.flags & HDLC_FLAG_AUTO_DCD) in async_mode()
4136 * 05 DCD IRQ enable in async_mode()
4139 * 02 1=txd->rxd internal loopback enable in async_mode()
4145 if ((rd_reg32(info, JCR) & BIT8) && info->params.data_rate && in async_mode()
4146 ((info->base_clock < (info->params.data_rate * 16)) || in async_mode()
4147 (info->base_clock % (info->params.data_rate * 16)))) { in async_mode()
4150 set_rate(info, info->params.data_rate * 8); in async_mode()
4153 set_rate(info, info->params.data_rate * 16); in async_mode()
4159 if (info->params.loopback) in async_mode()
4189 * 00 auto-CTS enable in sync_mode()
4193 switch(info->params.mode) { in sync_mode()
4201 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in sync_mode()
4204 switch(info->params.encoding) in sync_mode()
4215 switch (info->params.crc_type & HDLC_CRC_MASK) in sync_mode()
4221 if (info->params.preamble != HDLC_PREAMBLE_PATTERN_NONE) in sync_mode()
4224 switch (info->params.preamble_length) in sync_mode()
4231 if (info->params.flags & HDLC_FLAG_AUTO_CTS) in sync_mode()
4238 switch (info->params.preamble) in sync_mode()
4264 * 00 auto-DCD enable in sync_mode()
4268 switch(info->params.mode) { in sync_mode()
4277 switch(info->params.encoding) in sync_mode()
4288 switch (info->params.crc_type & HDLC_CRC_MASK) in sync_mode()
4294 if (info->params.flags & HDLC_FLAG_AUTO_DCD) in sync_mode()
4308 if (info->params.flags & HDLC_FLAG_TXC_BRG) in sync_mode()
4313 if (info->params.flags & HDLC_FLAG_RXC_DPLL) in sync_mode()
4318 else if (info->params.flags & HDLC_FLAG_TXC_DPLL) in sync_mode()
4320 else if (info->params.flags & HDLC_FLAG_TXC_RXCPIN) in sync_mode()
4323 if (info->params.flags & HDLC_FLAG_RXC_BRG) in sync_mode()
4325 else if (info->params.flags & HDLC_FLAG_RXC_DPLL) in sync_mode()
4327 else if (info->params.flags & HDLC_FLAG_RXC_TXCPIN) in sync_mode()
4330 if (info->params.clock_speed) in sync_mode()
4335 if (info->params.flags & (HDLC_FLAG_TXC_DPLL + HDLC_FLAG_RXC_DPLL)) in sync_mode()
4338 switch(info->params.encoding) in sync_mode()
4351 set_rate(info, info->params.clock_speed * 16); in sync_mode()
4354 set_rate(info, info->params.clock_speed); in sync_mode()
4372 * 05 DCD IRQ enable in sync_mode()
4375 * 02 1=txd->rxd internal loopback enable in sync_mode()
4381 if (info->params.loopback) in sync_mode()
4397 if (info->idle_mode & HDLC_TXIDLE_CUSTOM_16) { in tx_set_idle()
4401 wr_reg8(info, TPR, (unsigned char)((info->idle_mode >> 8) & 0xff)); in tx_set_idle()
4408 if (info->idle_mode & (HDLC_TXIDLE_CUSTOM_8 | HDLC_TXIDLE_CUSTOM_16)) { in tx_set_idle()
4410 val = (unsigned char)(info->idle_mode & 0xff); in tx_set_idle()
4413 switch(info->idle_mode) in tx_set_idle()
4435 info->signals &= SerialSignal_RTS | SerialSignal_DTR; in get_gtsignals()
4438 info->signals |= SerialSignal_DSR; in get_gtsignals()
4440 info->signals |= SerialSignal_CTS; in get_gtsignals()
4442 info->signals |= SerialSignal_DCD; in get_gtsignals()
4444 info->signals |= SerialSignal_RI; in get_gtsignals()
4463 switch(info->if_mode & MGSL_INTERFACE_MASK) in msc_set_vcr()
4476 if (info->if_mode & MGSL_INTERFACE_MSB_FIRST) in msc_set_vcr()
4478 if (info->signals & SerialSignal_DTR) in msc_set_vcr()
4480 if (info->signals & SerialSignal_RTS) in msc_set_vcr()
4482 if (info->if_mode & MGSL_INTERFACE_LL) in msc_set_vcr()
4484 if (info->if_mode & MGSL_INTERFACE_RL) in msc_set_vcr()
4495 if (info->signals & SerialSignal_DTR) in set_gtsignals()
4499 if (info->signals & SerialSignal_RTS) in set_gtsignals()
4515 info->rbufs[i].status = 0; in free_rbufs()
4516 set_desc_count(info->rbufs[i], info->rbuf_fill_level); in free_rbufs()
4519 if (++i == info->rbuf_count) in free_rbufs()
4522 info->rbuf_current = i; in free_rbufs()
4530 free_rbufs(info, 0, info->rbuf_count - 1); in reset_rbufs()
4531 info->rbuf_fill_index = 0; in reset_rbufs()
4532 info->rbuf_fill_count = 0; in reset_rbufs()
4546 struct tty_struct *tty = info->port.tty; in rx_get_frame()
4550 switch (info->params.crc_type & HDLC_CRC_MASK) { in rx_get_frame()
4559 start = end = info->rbuf_current; in rx_get_frame()
4562 if (!desc_complete(info->rbufs[end])) in rx_get_frame()
4565 if (framesize == 0 && info->params.addr_filter != 0xff) in rx_get_frame()
4566 addr_field = info->rbufs[end].buf[0]; in rx_get_frame()
4568 framesize += desc_count(info->rbufs[end]); in rx_get_frame()
4570 if (desc_eof(info->rbufs[end])) in rx_get_frame()
4573 if (++end == info->rbuf_count) in rx_get_frame()
4576 if (end == info->rbuf_current) { in rx_get_frame()
4577 if (info->rx_enabled){ in rx_get_frame()
4578 spin_lock_irqsave(&info->lock,flags); in rx_get_frame()
4580 spin_unlock_irqrestore(&info->lock,flags); in rx_get_frame()
4595 status = desc_status(info->rbufs[end]); in rx_get_frame()
4598 if ((info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_NONE) in rx_get_frame()
4602 (addr_field != 0xff && addr_field != info->params.addr_filter)) { in rx_get_frame()
4608 info->icount.rxshort++; in rx_get_frame()
4611 info->icount.rxcrc++; in rx_get_frame()
4612 if (!(info->params.crc_type & HDLC_CRC_RETURN_EX)) in rx_get_frame()
4618 info->netdev->stats.rx_errors++; in rx_get_frame()
4619 info->netdev->stats.rx_frame_errors++; in rx_get_frame()
4624 info->device_name, status, framesize)); in rx_get_frame()
4625 DBGDATA(info, info->rbufs[start].buf, min_t(int, framesize, info->rbuf_fill_level), "rx"); in rx_get_frame()
4628 if (!(info->params.crc_type & HDLC_CRC_RETURN_EX)) { in rx_get_frame()
4629 framesize -= crc_size; in rx_get_frame()
4633 if (framesize > info->max_frame_size + crc_size) in rx_get_frame()
4634 info->icount.rxlong++; in rx_get_frame()
4639 unsigned char *p = info->tmp_rbuf; in rx_get_frame()
4640 info->tmp_rbuf_count = framesize; in rx_get_frame()
4642 info->icount.rxok++; in rx_get_frame()
4645 int partial_count = min_t(int, copy_count, info->rbuf_fill_level); in rx_get_frame()
4646 memcpy(p, info->rbufs[i].buf, partial_count); in rx_get_frame()
4648 copy_count -= partial_count; in rx_get_frame()
4649 if (++i == info->rbuf_count) in rx_get_frame()
4653 if (info->params.crc_type & HDLC_CRC_RETURN_EX) { in rx_get_frame()
4659 if (info->netcount) in rx_get_frame()
4660 hdlcdev_rx(info,info->tmp_rbuf, framesize); in rx_get_frame()
4663 ldisc_receive_buf(tty, info->tmp_rbuf, info->flag_buf, framesize); in rx_get_frame()
4679 unsigned int i = info->rbuf_current; in rx_get_buf()
4682 if (!desc_complete(info->rbufs[i])) in rx_get_buf()
4684 count = desc_count(info->rbufs[i]); in rx_get_buf()
4685 switch(info->params.mode) { in rx_get_buf()
4690 if (desc_residue(info->rbufs[i])) in rx_get_buf()
4691 count--; in rx_get_buf()
4694 DBGDATA(info, info->rbufs[i].buf, count, "rx"); in rx_get_buf()
4697 ldisc_receive_buf(info->port.tty, info->rbufs[i].buf, in rx_get_buf()
4698 info->flag_buf, count); in rx_get_buf()
4706 info->tbuf_current = 0; in reset_tbufs()
4707 for (i=0 ; i < info->tbuf_count ; i++) { in reset_tbufs()
4708 info->tbufs[i].status = 0; in reset_tbufs()
4709 info->tbufs[i].count = 0; in reset_tbufs()
4719 unsigned int i = info->tbuf_current; in free_tbuf_count()
4723 if (desc_count(info->tbufs[i])) in free_tbuf_count()
4726 if (++i == info->tbuf_count) in free_tbuf_count()
4728 } while (i != info->tbuf_current); in free_tbuf_count()
4732 --count; in free_tbuf_count()
4744 unsigned int i = info->tbuf_current; in tbuf_bytes()
4761 count = desc_count(info->tbufs[i]); in tbuf_bytes()
4765 active_buf_count = info->tbufs[i].buf_count; in tbuf_bytes()
4766 if (++i == info->tbuf_count) in tbuf_bytes()
4768 } while (i != info->tbuf_current); in tbuf_bytes()
4781 if (info->tx_active) in tbuf_bytes()
4814 info->tbuf_start = i = info->tbuf_current; in tx_load()
4817 d = &info->tbufs[i]; in tx_load()
4820 memcpy(d->buf, buf, count); in tx_load()
4822 size -= count; in tx_load()
4829 if ((!size && info->params.mode == MGSL_MODE_HDLC) || in tx_load()
4830 info->params.mode == MGSL_MODE_RAW) in tx_load()
4836 if (i != info->tbuf_start) in tx_load()
4838 d->buf_count = count; in tx_load()
4840 if (++i == info->tbuf_count) in tx_load()
4844 info->tbuf_current = i; in tx_load()
4847 d = &info->tbufs[info->tbuf_start]; in tx_load()
4848 set_desc_count(*d, d->buf_count); in tx_load()
4851 if (!info->tx_active) in tx_load()
4871 rc = -ENODEV; in register_test()
4875 info->gpio_present = (rd_reg32(info, JCR) & BIT5) ? 1 : 0; in register_test()
4876 info->init_error = rc ? 0 : DiagStatus_AddressFailure; in register_test()
4884 struct tty_struct *oldtty = info->port.tty; in irq_test()
4885 u32 speed = info->params.data_rate; in irq_test()
4887 info->params.data_rate = 921600; in irq_test()
4888 info->port.tty = NULL; in irq_test()
4890 spin_lock_irqsave(&info->lock, flags); in irq_test()
4902 info->init_error = DiagStatus_IrqFailure; in irq_test()
4903 info->irq_occurred = false; in irq_test()
4905 spin_unlock_irqrestore(&info->lock, flags); in irq_test()
4908 while(timeout-- && !info->irq_occurred) in irq_test()
4911 spin_lock_irqsave(&info->lock,flags); in irq_test()
4913 spin_unlock_irqrestore(&info->lock,flags); in irq_test()
4915 info->params.data_rate = speed; in irq_test()
4916 info->port.tty = oldtty; in irq_test()
4918 info->init_error = info->irq_occurred ? 0 : DiagStatus_IrqFailure; in irq_test()
4919 return info->irq_occurred ? 0 : -ENODEV; in irq_test()
4927 if (desc_complete(info->rbufs[0])) { in loopback_test_rx()
4928 count = desc_count(info->rbufs[0]); in loopback_test_rx()
4929 src = info->rbufs[0].buf; in loopback_test_rx()
4930 dest = info->tmp_rbuf; in loopback_test_rx()
4932 for( ; count ; count-=2, src+=2) { in loopback_test_rx()
4937 info->tmp_rbuf_count++; in loopback_test_rx()
4940 DBGDATA(info, info->tmp_rbuf, info->tmp_rbuf_count, "rx"); in loopback_test_rx()
4953 int rc = -ENODEV; in loopback_test()
4956 struct tty_struct *oldtty = info->port.tty; in loopback_test()
4959 memcpy(¶ms, &info->params, sizeof(params)); in loopback_test()
4961 info->params.mode = MGSL_MODE_ASYNC; in loopback_test()
4962 info->params.data_rate = 921600; in loopback_test()
4963 info->params.loopback = 1; in loopback_test()
4964 info->port.tty = NULL; in loopback_test()
4970 info->tmp_rbuf_count = 0; in loopback_test()
4971 memset(info->tmp_rbuf, 0, TESTFRAMESIZE); in loopback_test()
4974 spin_lock_irqsave(&info->lock,flags); in loopback_test()
4978 spin_unlock_irqrestore(&info->lock, flags); in loopback_test()
4981 for (timeout = 100; timeout; --timeout) { in loopback_test()
4990 if (!rc && (info->tmp_rbuf_count != count || in loopback_test()
4991 memcmp(buf, info->tmp_rbuf, count))) { in loopback_test()
4992 rc = -ENODEV; in loopback_test()
4995 spin_lock_irqsave(&info->lock,flags); in loopback_test()
4997 spin_unlock_irqrestore(&info->lock,flags); in loopback_test()
4999 memcpy(&info->params, ¶ms, sizeof(info->params)); in loopback_test()
5000 info->port.tty = oldtty; in loopback_test()
5002 info->init_error = rc ? DiagStatus_DmaFailure : 0; in loopback_test()
5008 DBGINFO(("testing %s\n", info->device_name)); in adapter_test()
5011 info->device_name, info->phys_reg_addr); in adapter_test()
5014 info->device_name, info->irq_level); in adapter_test()
5016 printk("loopback test failure %s\n", info->device_name); in adapter_test()
5018 return info->init_error; in adapter_test()
5029 DBGINFO(("%s tx_timeout\n", info->device_name)); in tx_timeout()
5030 if(info->tx_active && info->params.mode == MGSL_MODE_HDLC) { in tx_timeout()
5031 info->icount.txtimeout++; in tx_timeout()
5033 spin_lock_irqsave(&info->lock,flags); in tx_timeout()
5035 spin_unlock_irqrestore(&info->lock,flags); in tx_timeout()
5038 if (info->netcount) in tx_timeout()
5053 DBGINFO(("%s rx_timeout\n", info->device_name)); in rx_timeout()
5054 spin_lock_irqsave(&info->lock, flags); in rx_timeout()
5055 info->pending_bh |= BH_RECEIVE; in rx_timeout()
5056 spin_unlock_irqrestore(&info->lock, flags); in rx_timeout()
5057 bh_handler(&info->task); in rx_timeout()