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()
620 info->port.low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0; in open()
622 spin_lock_irqsave(&info->netlock, flags); in open()
623 if (info->netcount) { in open()
624 retval = -EBUSY; in open()
625 spin_unlock_irqrestore(&info->netlock, flags); in open()
626 mutex_unlock(&info->port.mutex); in open()
629 info->port.count++; in open()
630 spin_unlock_irqrestore(&info->netlock, flags); in open()
632 if (info->port.count == 1) { in open()
636 mutex_unlock(&info->port.mutex); in open()
640 mutex_unlock(&info->port.mutex); in open()
643 DBGINFO(("%s block_til_ready rc=%d\n", info->device_name, retval)); in open()
651 if (tty->count == 1) in open()
652 info->port.tty = NULL; /* tty layer will release tty struct */ in open()
653 if(info->port.count) in open()
654 info->port.count--; in open()
657 DBGINFO(("%s open rc=%d\n", info->device_name, retval)); in open()
663 struct slgt_info *info = tty->driver_data; in close()
665 if (sanity_check(info, tty->name, "close")) in close()
667 DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count)); in close()
669 if (tty_port_close_start(&info->port, tty, filp) == 0) in close()
672 mutex_lock(&info->port.mutex); in close()
673 if (tty_port_initialized(&info->port)) in close()
674 wait_until_sent(tty, info->timeout); in close()
679 mutex_unlock(&info->port.mutex); in close()
681 tty_port_close_end(&info->port, tty); in close()
682 info->port.tty = NULL; in close()
684 DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count)); in close()
689 struct slgt_info *info = tty->driver_data; in hangup()
692 if (sanity_check(info, tty->name, "hangup")) in hangup()
694 DBGINFO(("%s hangup\n", info->device_name)); in hangup()
698 mutex_lock(&info->port.mutex); in hangup()
701 spin_lock_irqsave(&info->port.lock, flags); in hangup()
702 info->port.count = 0; in hangup()
703 info->port.tty = NULL; in hangup()
704 spin_unlock_irqrestore(&info->port.lock, flags); in hangup()
705 tty_port_set_active(&info->port, 0); in hangup()
706 mutex_unlock(&info->port.mutex); in hangup()
708 wake_up_interruptible(&info->port.open_wait); in hangup()
713 struct slgt_info *info = tty->driver_data; in set_termios()
716 DBGINFO(("%s set_termios\n", tty->driver->name)); in set_termios()
721 if ((old_termios->c_cflag & CBAUD) && !C_BAUD(tty)) { in set_termios()
722 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in set_termios()
723 spin_lock_irqsave(&info->lock,flags); in set_termios()
725 spin_unlock_irqrestore(&info->lock,flags); in set_termios()
729 if (!(old_termios->c_cflag & CBAUD) && C_BAUD(tty)) { in set_termios()
730 info->signals |= SerialSignal_DTR; in set_termios()
732 info->signals |= SerialSignal_RTS; in set_termios()
733 spin_lock_irqsave(&info->lock,flags); in set_termios()
735 spin_unlock_irqrestore(&info->lock,flags); in set_termios()
739 if ((old_termios->c_cflag & CRTSCTS) && !C_CRTSCTS(tty)) { in set_termios()
740 tty->hw_stopped = 0; in set_termios()
751 if (info->params.mode == MGSL_MODE_HDLC) { in update_tx_timer()
753 mod_timer(&info->tx_timer, jiffies + msecs_to_jiffies(timeout)); in update_tx_timer()
761 struct slgt_info *info = tty->driver_data; in write()
764 if (sanity_check(info, tty->name, "write")) in write()
765 return -EIO; in write()
767 DBGINFO(("%s write count=%d\n", info->device_name, count)); in write()
769 if (!info->tx_buf || (count > info->max_frame_size)) in write()
770 return -EIO; in write()
772 if (!count || tty->stopped || tty->hw_stopped) in write()
775 spin_lock_irqsave(&info->lock, flags); in write()
777 if (info->tx_count) { in write()
779 if (!tx_load(info, info->tx_buf, info->tx_count)) in write()
781 info->tx_count = 0; in write()
788 spin_unlock_irqrestore(&info->lock, flags); in write()
789 DBGINFO(("%s write rc=%d\n", info->device_name, ret)); in write()
795 struct slgt_info *info = tty->driver_data; in put_char()
799 if (sanity_check(info, tty->name, "put_char")) in put_char()
801 DBGINFO(("%s put_char(%d)\n", info->device_name, ch)); in put_char()
802 if (!info->tx_buf) in put_char()
804 spin_lock_irqsave(&info->lock,flags); in put_char()
805 if (info->tx_count < info->max_frame_size) { in put_char()
806 info->tx_buf[info->tx_count++] = ch; in put_char()
809 spin_unlock_irqrestore(&info->lock,flags); in put_char()
815 struct slgt_info *info = tty->driver_data; in send_xchar()
818 if (sanity_check(info, tty->name, "send_xchar")) in send_xchar()
820 DBGINFO(("%s send_xchar(%d)\n", info->device_name, ch)); in send_xchar()
821 info->x_char = ch; in send_xchar()
823 spin_lock_irqsave(&info->lock,flags); in send_xchar()
824 if (!info->tx_enabled) in send_xchar()
826 spin_unlock_irqrestore(&info->lock,flags); in send_xchar()
832 struct slgt_info *info = tty->driver_data; in wait_until_sent()
837 if (sanity_check(info, tty->name, "wait_until_sent")) in wait_until_sent()
839 DBGINFO(("%s wait_until_sent entry\n", info->device_name)); in wait_until_sent()
840 if (!tty_port_initialized(&info->port)) in wait_until_sent()
848 * Note: use tight timings here to satisfy the NIST-PCTS. in wait_until_sent()
851 if (info->params.data_rate) { in wait_until_sent()
852 char_time = info->timeout/(32 * 5); in wait_until_sent()
861 while (info->tx_active) { in wait_until_sent()
869 DBGINFO(("%s wait_until_sent exit\n", info->device_name)); in wait_until_sent()
874 struct slgt_info *info = tty->driver_data; in write_room()
877 if (sanity_check(info, tty->name, "write_room")) in write_room()
879 ret = (info->tx_active) ? 0 : HDLC_MAX_FRAME_SIZE; in write_room()
880 DBGINFO(("%s write_room=%d\n", info->device_name, ret)); in write_room()
886 struct slgt_info *info = tty->driver_data; in flush_chars()
889 if (sanity_check(info, tty->name, "flush_chars")) in flush_chars()
891 DBGINFO(("%s flush_chars entry tx_count=%d\n", info->device_name, info->tx_count)); in flush_chars()
893 if (info->tx_count <= 0 || tty->stopped || in flush_chars()
894 tty->hw_stopped || !info->tx_buf) in flush_chars()
897 DBGINFO(("%s flush_chars start transmit\n", info->device_name)); in flush_chars()
899 spin_lock_irqsave(&info->lock,flags); in flush_chars()
900 if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count)) in flush_chars()
901 info->tx_count = 0; in flush_chars()
902 spin_unlock_irqrestore(&info->lock,flags); in flush_chars()
907 struct slgt_info *info = tty->driver_data; in flush_buffer()
910 if (sanity_check(info, tty->name, "flush_buffer")) in flush_buffer()
912 DBGINFO(("%s flush_buffer\n", info->device_name)); in flush_buffer()
914 spin_lock_irqsave(&info->lock, flags); in flush_buffer()
915 info->tx_count = 0; in flush_buffer()
916 spin_unlock_irqrestore(&info->lock, flags); in flush_buffer()
926 struct slgt_info *info = tty->driver_data; in tx_hold()
929 if (sanity_check(info, tty->name, "tx_hold")) in tx_hold()
931 DBGINFO(("%s tx_hold\n", info->device_name)); in tx_hold()
932 spin_lock_irqsave(&info->lock,flags); in tx_hold()
933 if (info->tx_enabled && info->params.mode == MGSL_MODE_ASYNC) in tx_hold()
935 spin_unlock_irqrestore(&info->lock,flags); in tx_hold()
943 struct slgt_info *info = tty->driver_data; in tx_release()
946 if (sanity_check(info, tty->name, "tx_release")) in tx_release()
948 DBGINFO(("%s tx_release\n", info->device_name)); in tx_release()
949 spin_lock_irqsave(&info->lock, flags); in tx_release()
950 if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count)) in tx_release()
951 info->tx_count = 0; in tx_release()
952 spin_unlock_irqrestore(&info->lock, flags); in tx_release()
969 struct slgt_info *info = tty->driver_data; in ioctl()
973 if (sanity_check(info, tty->name, "ioctl")) in ioctl()
974 return -ENODEV; in ioctl()
975 DBGINFO(("%s ioctl() cmd=%08X\n", info->device_name, cmd)); in ioctl()
979 return -EIO; in ioctl()
1002 mutex_lock(&info->port.mutex); in ioctl()
1035 ret = -ENOIOCTLCMD; in ioctl()
1037 mutex_unlock(&info->port.mutex); in ioctl()
1045 struct slgt_info *info = tty->driver_data; in get_icount()
1049 spin_lock_irqsave(&info->lock,flags); in get_icount()
1050 cnow = info->icount; in get_icount()
1051 spin_unlock_irqrestore(&info->lock,flags); in get_icount()
1053 icount->cts = cnow.cts; in get_icount()
1054 icount->dsr = cnow.dsr; in get_icount()
1055 icount->rng = cnow.rng; in get_icount()
1056 icount->dcd = cnow.dcd; in get_icount()
1057 icount->rx = cnow.rx; in get_icount()
1058 icount->tx = cnow.tx; in get_icount()
1059 icount->frame = cnow.frame; in get_icount()
1060 icount->overrun = cnow.overrun; in get_icount()
1061 icount->parity = cnow.parity; in get_icount()
1062 icount->brk = cnow.brk; in get_icount()
1063 icount->buf_overrun = cnow.buf_overrun; in get_icount()
1076 DBGINFO(("%s get_params32\n", info->device_name)); in get_params32()
1078 tmp_params.mode = (compat_ulong_t)info->params.mode; in get_params32()
1079 tmp_params.loopback = info->params.loopback; in get_params32()
1080 tmp_params.flags = info->params.flags; in get_params32()
1081 tmp_params.encoding = info->params.encoding; in get_params32()
1082 tmp_params.clock_speed = (compat_ulong_t)info->params.clock_speed; in get_params32()
1083 tmp_params.addr_filter = info->params.addr_filter; in get_params32()
1084 tmp_params.crc_type = info->params.crc_type; in get_params32()
1085 tmp_params.preamble_length = info->params.preamble_length; in get_params32()
1086 tmp_params.preamble = info->params.preamble; in get_params32()
1087 tmp_params.data_rate = (compat_ulong_t)info->params.data_rate; in get_params32()
1088 tmp_params.data_bits = info->params.data_bits; in get_params32()
1089 tmp_params.stop_bits = info->params.stop_bits; in get_params32()
1090 tmp_params.parity = info->params.parity; in get_params32()
1092 return -EFAULT; in get_params32()
1100 DBGINFO(("%s set_params32\n", info->device_name)); in set_params32()
1102 return -EFAULT; in set_params32()
1104 spin_lock(&info->lock); in set_params32()
1106 info->base_clock = tmp_params.clock_speed; in set_params32()
1108 info->params.mode = tmp_params.mode; in set_params32()
1109 info->params.loopback = tmp_params.loopback; in set_params32()
1110 info->params.flags = tmp_params.flags; in set_params32()
1111 info->params.encoding = tmp_params.encoding; in set_params32()
1112 info->params.clock_speed = tmp_params.clock_speed; in set_params32()
1113 info->params.addr_filter = tmp_params.addr_filter; in set_params32()
1114 info->params.crc_type = tmp_params.crc_type; in set_params32()
1115 info->params.preamble_length = tmp_params.preamble_length; in set_params32()
1116 info->params.preamble = tmp_params.preamble; in set_params32()
1117 info->params.data_rate = tmp_params.data_rate; in set_params32()
1118 info->params.data_bits = tmp_params.data_bits; in set_params32()
1119 info->params.stop_bits = tmp_params.stop_bits; in set_params32()
1120 info->params.parity = tmp_params.parity; in set_params32()
1122 spin_unlock(&info->lock); in set_params32()
1132 struct slgt_info *info = tty->driver_data; in slgt_compat_ioctl()
1135 if (sanity_check(info, tty->name, "compat_ioctl")) in slgt_compat_ioctl()
1136 return -ENODEV; in slgt_compat_ioctl()
1137 DBGINFO(("%s compat_ioctl() cmd=%08X\n", info->device_name, cmd)); in slgt_compat_ioctl()
1164 DBGINFO(("%s compat_ioctl() cmd=%08X rc=%d\n", info->device_name, cmd, rc)); in slgt_compat_ioctl()
1180 info->device_name, info->phys_reg_addr, in line_info()
1181 info->irq_level, info->max_frame_size); in line_info()
1184 spin_lock_irqsave(&info->lock,flags); in line_info()
1186 spin_unlock_irqrestore(&info->lock,flags); in line_info()
1190 if (info->signals & SerialSignal_RTS) in line_info()
1192 if (info->signals & SerialSignal_CTS) in line_info()
1194 if (info->signals & SerialSignal_DTR) in line_info()
1196 if (info->signals & SerialSignal_DSR) in line_info()
1198 if (info->signals & SerialSignal_DCD) in line_info()
1200 if (info->signals & SerialSignal_RI) in line_info()
1203 if (info->params.mode != MGSL_MODE_ASYNC) { in line_info()
1205 info->icount.txok, info->icount.rxok); in line_info()
1206 if (info->icount.txunder) in line_info()
1207 seq_printf(m, " txunder:%d", info->icount.txunder); in line_info()
1208 if (info->icount.txabort) in line_info()
1209 seq_printf(m, " txabort:%d", info->icount.txabort); in line_info()
1210 if (info->icount.rxshort) in line_info()
1211 seq_printf(m, " rxshort:%d", info->icount.rxshort); in line_info()
1212 if (info->icount.rxlong) in line_info()
1213 seq_printf(m, " rxlong:%d", info->icount.rxlong); in line_info()
1214 if (info->icount.rxover) in line_info()
1215 seq_printf(m, " rxover:%d", info->icount.rxover); in line_info()
1216 if (info->icount.rxcrc) in line_info()
1217 seq_printf(m, " rxcrc:%d", info->icount.rxcrc); in line_info()
1220 info->icount.tx, info->icount.rx); in line_info()
1221 if (info->icount.frame) in line_info()
1222 seq_printf(m, " fe:%d", info->icount.frame); in line_info()
1223 if (info->icount.parity) in line_info()
1224 seq_printf(m, " pe:%d", info->icount.parity); in line_info()
1225 if (info->icount.brk) in line_info()
1226 seq_printf(m, " brk:%d", info->icount.brk); in line_info()
1227 if (info->icount.overrun) in line_info()
1228 seq_printf(m, " oe:%d", info->icount.overrun); in line_info()
1235 info->tx_active,info->bh_requested,info->bh_running, in line_info()
1236 info->pending_bh); in line_info()
1250 info = info->next_device; in synclink_gt_proc_show()
1260 struct slgt_info *info = tty->driver_data; in chars_in_buffer()
1262 if (sanity_check(info, tty->name, "chars_in_buffer")) in chars_in_buffer()
1265 DBGINFO(("%s chars_in_buffer()=%d\n", info->device_name, count)); in chars_in_buffer()
1274 struct slgt_info *info = tty->driver_data; in throttle()
1277 if (sanity_check(info, tty->name, "throttle")) in throttle()
1279 DBGINFO(("%s throttle\n", info->device_name)); in throttle()
1283 spin_lock_irqsave(&info->lock,flags); in throttle()
1284 info->signals &= ~SerialSignal_RTS; in throttle()
1286 spin_unlock_irqrestore(&info->lock,flags); in throttle()
1295 struct slgt_info *info = tty->driver_data; in unthrottle()
1298 if (sanity_check(info, tty->name, "unthrottle")) in unthrottle()
1300 DBGINFO(("%s unthrottle\n", info->device_name)); in unthrottle()
1302 if (info->x_char) in unthrottle()
1303 info->x_char = 0; in unthrottle()
1308 spin_lock_irqsave(&info->lock,flags); in unthrottle()
1309 info->signals |= SerialSignal_RTS; in unthrottle()
1311 spin_unlock_irqrestore(&info->lock,flags); in unthrottle()
1317 * break_state -1=set break condition, 0=clear
1321 struct slgt_info *info = tty->driver_data; in set_break()
1325 if (sanity_check(info, tty->name, "set_break")) in set_break()
1326 return -EINVAL; in set_break()
1327 DBGINFO(("%s set_break(%d)\n", info->device_name, break_state)); in set_break()
1329 spin_lock_irqsave(&info->lock,flags); in set_break()
1331 if (break_state == -1) in set_break()
1336 spin_unlock_irqrestore(&info->lock,flags); in set_break()
1343 * hdlcdev_attach - called by generic HDLC layer when protocol selected (PPP, frame relay, etc.)
1360 if (info->port.count) in hdlcdev_attach()
1361 return -EBUSY; in hdlcdev_attach()
1363 DBGINFO(("%s hdlcdev_attach\n", info->device_name)); in hdlcdev_attach()
1372 default: return -EINVAL; in hdlcdev_attach()
1380 default: return -EINVAL; in hdlcdev_attach()
1383 info->params.encoding = new_encoding; in hdlcdev_attach()
1384 info->params.crc_type = new_crctype; in hdlcdev_attach()
1387 if (info->netcount) in hdlcdev_attach()
1394 * hdlcdev_xmit - called by generic HDLC layer to send a frame
1404 DBGINFO(("%s hdlc_xmit\n", dev->name)); in hdlcdev_xmit()
1406 if (!skb->len) in hdlcdev_xmit()
1413 dev->stats.tx_packets++; in hdlcdev_xmit()
1414 dev->stats.tx_bytes += skb->len; in hdlcdev_xmit()
1419 spin_lock_irqsave(&info->lock, flags); in hdlcdev_xmit()
1420 tx_load(info, skb->data, skb->len); in hdlcdev_xmit()
1421 spin_unlock_irqrestore(&info->lock, flags); in hdlcdev_xmit()
1430 * hdlcdev_open - called by network layer when interface enabled
1444 return -EBUSY; in hdlcdev_open()
1446 DBGINFO(("%s hdlcdev_open\n", dev->name)); in hdlcdev_open()
1454 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_open()
1455 if (info->port.count != 0 || info->netcount != 0) { in hdlcdev_open()
1456 DBGINFO(("%s hdlc_open busy\n", dev->name)); in hdlcdev_open()
1457 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1458 return -EBUSY; in hdlcdev_open()
1460 info->netcount=1; in hdlcdev_open()
1461 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1465 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_open()
1466 info->netcount=0; in hdlcdev_open()
1467 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1472 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in hdlcdev_open()
1479 /* inform generic HDLC layer of current DCD status */ in hdlcdev_open()
1480 spin_lock_irqsave(&info->lock, flags); in hdlcdev_open()
1482 spin_unlock_irqrestore(&info->lock, flags); in hdlcdev_open()
1483 if (info->signals & SerialSignal_DCD) in hdlcdev_open()
1491 * hdlcdev_close - called by network layer when interface is disabled
1503 DBGINFO(("%s hdlcdev_close\n", dev->name)); in hdlcdev_close()
1512 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_close()
1513 info->netcount=0; in hdlcdev_close()
1514 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_close()
1521 * hdlcdev_ioctl - called by network layer to process IOCTL call to network device
1532 sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync; in hdlcdev_ioctl()
1536 DBGINFO(("%s hdlcdev_ioctl\n", dev->name)); in hdlcdev_ioctl()
1539 if (info->port.count) in hdlcdev_ioctl()
1540 return -EBUSY; in hdlcdev_ioctl()
1547 switch(ifr->ifr_settings.type) { in hdlcdev_ioctl()
1550 ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL; in hdlcdev_ioctl()
1551 if (ifr->ifr_settings.size < size) { in hdlcdev_ioctl()
1552 ifr->ifr_settings.size = size; /* data size wanted */ in hdlcdev_ioctl()
1553 return -ENOBUFS; in hdlcdev_ioctl()
1556 flags = info->params.flags & (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL | in hdlcdev_ioctl()
1569 new_line.clock_rate = info->params.clock_speed; in hdlcdev_ioctl()
1570 new_line.loopback = info->params.loopback ? 1:0; in hdlcdev_ioctl()
1573 return -EFAULT; in hdlcdev_ioctl()
1579 return -EPERM; in hdlcdev_ioctl()
1581 return -EFAULT; in hdlcdev_ioctl()
1589 case CLOCK_DEFAULT: flags = info->params.flags & in hdlcdev_ioctl()
1594 default: return -EINVAL; in hdlcdev_ioctl()
1598 return -EINVAL; in hdlcdev_ioctl()
1600 info->params.flags &= ~(HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL | in hdlcdev_ioctl()
1604 info->params.flags |= flags; in hdlcdev_ioctl()
1606 info->params.loopback = new_line.loopback; in hdlcdev_ioctl()
1609 info->params.clock_speed = new_line.clock_rate; in hdlcdev_ioctl()
1611 info->params.clock_speed = 0; in hdlcdev_ioctl()
1614 if (info->netcount) in hdlcdev_ioctl()
1624 * hdlcdev_tx_timeout - called by network layer when transmit timeout is detected
1632 DBGINFO(("%s hdlcdev_tx_timeout\n", dev->name)); in hdlcdev_tx_timeout()
1634 dev->stats.tx_errors++; in hdlcdev_tx_timeout()
1635 dev->stats.tx_aborted_errors++; in hdlcdev_tx_timeout()
1637 spin_lock_irqsave(&info->lock,flags); in hdlcdev_tx_timeout()
1639 spin_unlock_irqrestore(&info->lock,flags); in hdlcdev_tx_timeout()
1645 * hdlcdev_tx_done - called by device driver when transmit completes
1652 if (netif_queue_stopped(info->netdev)) in hdlcdev_tx_done()
1653 netif_wake_queue(info->netdev); in hdlcdev_tx_done()
1657 * hdlcdev_rx - called by device driver when frame received
1667 struct net_device *dev = info->netdev; in hdlcdev_rx()
1669 DBGINFO(("%s hdlcdev_rx\n", dev->name)); in hdlcdev_rx()
1672 DBGERR(("%s: can't alloc skb, drop packet\n", dev->name)); in hdlcdev_rx()
1673 dev->stats.rx_dropped++; in hdlcdev_rx()
1679 skb->protocol = hdlc_type_trans(skb, dev); in hdlcdev_rx()
1681 dev->stats.rx_packets++; in hdlcdev_rx()
1682 dev->stats.rx_bytes += size; in hdlcdev_rx()
1696 * hdlcdev_init - called by device driver when adding device instance
1713 printk(KERN_ERR "%s hdlc device alloc failure\n", info->device_name); in hdlcdev_init()
1714 return -ENOMEM; in hdlcdev_init()
1718 dev->mem_start = info->phys_reg_addr; in hdlcdev_init()
1719 dev->mem_end = info->phys_reg_addr + SLGT_REG_SIZE - 1; in hdlcdev_init()
1720 dev->irq = info->irq_level; in hdlcdev_init()
1723 dev->netdev_ops = &hdlcdev_ops; in hdlcdev_init()
1724 dev->watchdog_timeo = 10 * HZ; in hdlcdev_init()
1725 dev->tx_queue_len = 50; in hdlcdev_init()
1729 hdlc->attach = hdlcdev_attach; in hdlcdev_init()
1730 hdlc->xmit = hdlcdev_xmit; in hdlcdev_init()
1740 info->netdev = dev; in hdlcdev_init()
1745 * hdlcdev_exit - called by device driver when removing device instance
1752 unregister_hdlc_device(info->netdev); in hdlcdev_exit()
1753 free_netdev(info->netdev); in hdlcdev_exit()
1754 info->netdev = NULL; in hdlcdev_exit()
1764 struct mgsl_icount *icount = &info->icount; in rx_async()
1768 struct slgt_desc *bufs = info->rbufs; in rx_async()
1774 start = end = info->rbuf_current; in rx_async()
1777 count = desc_count(bufs[end]) - info->rbuf_index; in rx_async()
1778 p = bufs[end].buf + info->rbuf_index; in rx_async()
1780 DBGISR(("%s rx_async count=%d\n", info->device_name, count)); in rx_async()
1785 icount->rx++; in rx_async()
1792 icount->parity++; in rx_async()
1794 icount->frame++; in rx_async()
1796 if (status & info->ignore_status_mask) in rx_async()
1803 tty_insert_flip_char(&info->port, ch, stat); in rx_async()
1809 info->rbuf_index += i; in rx_async()
1810 mod_timer(&info->rx_timer, jiffies + 1); in rx_async()
1814 info->rbuf_index = 0; in rx_async()
1817 if (++end == info->rbuf_count) in rx_async()
1826 tty_flip_buffer_push(&info->port); in rx_async()
1837 spin_lock_irqsave(&info->lock,flags); in bh_action()
1839 if (info->pending_bh & BH_RECEIVE) { in bh_action()
1840 info->pending_bh &= ~BH_RECEIVE; in bh_action()
1842 } else if (info->pending_bh & BH_TRANSMIT) { in bh_action()
1843 info->pending_bh &= ~BH_TRANSMIT; in bh_action()
1845 } else if (info->pending_bh & BH_STATUS) { in bh_action()
1846 info->pending_bh &= ~BH_STATUS; in bh_action()
1850 info->bh_running = false; in bh_action()
1851 info->bh_requested = false; in bh_action()
1855 spin_unlock_irqrestore(&info->lock,flags); in bh_action()
1868 info->bh_running = true; in bh_handler()
1873 DBGBH(("%s bh receive\n", info->device_name)); in bh_handler()
1874 switch(info->params.mode) { in bh_handler()
1889 if (info->rx_restart) in bh_handler()
1896 DBGBH(("%s bh status\n", info->device_name)); in bh_handler()
1897 info->ri_chkcount = 0; in bh_handler()
1898 info->dsr_chkcount = 0; in bh_handler()
1899 info->dcd_chkcount = 0; in bh_handler()
1900 info->cts_chkcount = 0; in bh_handler()
1903 DBGBH(("%s unknown action\n", info->device_name)); in bh_handler()
1907 DBGBH(("%s bh_handler exit\n", info->device_name)); in bh_handler()
1912 struct tty_struct *tty = info->port.tty; in bh_transmit()
1914 DBGBH(("%s bh_transmit\n", info->device_name)); in bh_transmit()
1922 info->signals |= SerialSignal_DSR; in dsr_change()
1923 info->input_signal_events.dsr_up++; in dsr_change()
1925 info->signals &= ~SerialSignal_DSR; in dsr_change()
1926 info->input_signal_events.dsr_down++; in dsr_change()
1928 DBGISR(("dsr_change %s signals=%04X\n", info->device_name, info->signals)); in dsr_change()
1929 if ((info->dsr_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in dsr_change()
1933 info->icount.dsr++; in dsr_change()
1934 wake_up_interruptible(&info->status_event_wait_q); in dsr_change()
1935 wake_up_interruptible(&info->event_wait_q); in dsr_change()
1936 info->pending_bh |= BH_STATUS; in dsr_change()
1942 info->signals |= SerialSignal_CTS; in cts_change()
1943 info->input_signal_events.cts_up++; in cts_change()
1945 info->signals &= ~SerialSignal_CTS; in cts_change()
1946 info->input_signal_events.cts_down++; in cts_change()
1948 DBGISR(("cts_change %s signals=%04X\n", info->device_name, info->signals)); in cts_change()
1949 if ((info->cts_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in cts_change()
1953 info->icount.cts++; in cts_change()
1954 wake_up_interruptible(&info->status_event_wait_q); in cts_change()
1955 wake_up_interruptible(&info->event_wait_q); in cts_change()
1956 info->pending_bh |= BH_STATUS; in cts_change()
1958 if (tty_port_cts_enabled(&info->port)) { in cts_change()
1959 if (info->port.tty) { in cts_change()
1960 if (info->port.tty->hw_stopped) { in cts_change()
1961 if (info->signals & SerialSignal_CTS) { in cts_change()
1962 info->port.tty->hw_stopped = 0; in cts_change()
1963 info->pending_bh |= BH_TRANSMIT; in cts_change()
1967 if (!(info->signals & SerialSignal_CTS)) in cts_change()
1968 info->port.tty->hw_stopped = 1; in cts_change()
1977 info->signals |= SerialSignal_DCD; in dcd_change()
1978 info->input_signal_events.dcd_up++; in dcd_change()
1980 info->signals &= ~SerialSignal_DCD; in dcd_change()
1981 info->input_signal_events.dcd_down++; in dcd_change()
1983 DBGISR(("dcd_change %s signals=%04X\n", info->device_name, info->signals)); in dcd_change()
1984 if ((info->dcd_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in dcd_change()
1988 info->icount.dcd++; in dcd_change()
1990 if (info->netcount) { in dcd_change()
1991 if (info->signals & SerialSignal_DCD) in dcd_change()
1992 netif_carrier_on(info->netdev); in dcd_change()
1994 netif_carrier_off(info->netdev); in dcd_change()
1997 wake_up_interruptible(&info->status_event_wait_q); in dcd_change()
1998 wake_up_interruptible(&info->event_wait_q); in dcd_change()
1999 info->pending_bh |= BH_STATUS; in dcd_change()
2001 if (tty_port_check_carrier(&info->port)) { in dcd_change()
2002 if (info->signals & SerialSignal_DCD) in dcd_change()
2003 wake_up_interruptible(&info->port.open_wait); in dcd_change()
2005 if (info->port.tty) in dcd_change()
2006 tty_hangup(info->port.tty); in dcd_change()
2014 info->signals |= SerialSignal_RI; in ri_change()
2015 info->input_signal_events.ri_up++; in ri_change()
2017 info->signals &= ~SerialSignal_RI; in ri_change()
2018 info->input_signal_events.ri_down++; in ri_change()
2020 DBGISR(("ri_change %s signals=%04X\n", info->device_name, info->signals)); in ri_change()
2021 if ((info->ri_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in ri_change()
2025 info->icount.rng++; in ri_change()
2026 wake_up_interruptible(&info->status_event_wait_q); in ri_change()
2027 wake_up_interruptible(&info->event_wait_q); in ri_change()
2028 info->pending_bh |= BH_STATUS; in ri_change()
2033 unsigned int count = info->rbuf_fill_count; in isr_rxdata()
2034 unsigned int i = info->rbuf_fill_index; in isr_rxdata()
2039 DBGISR(("isr_rxdata %s RDR=%04X\n", info->device_name, reg)); in isr_rxdata()
2040 if (desc_complete(info->rbufs[i])) { in isr_rxdata()
2043 info->rx_restart = true; in isr_rxdata()
2046 info->rbufs[i].buf[count++] = (unsigned char)reg; in isr_rxdata()
2048 if (info->params.mode == MGSL_MODE_ASYNC) in isr_rxdata()
2049 info->rbufs[i].buf[count++] = (unsigned char)(reg >> 8); in isr_rxdata()
2050 if (count == info->rbuf_fill_level || (reg & BIT10)) { in isr_rxdata()
2052 set_desc_count(info->rbufs[i], count); in isr_rxdata()
2053 set_desc_status(info->rbufs[i], BIT15 | (reg >> 8)); in isr_rxdata()
2054 info->rbuf_fill_count = count = 0; in isr_rxdata()
2055 if (++i == info->rbuf_count) in isr_rxdata()
2057 info->pending_bh |= BH_RECEIVE; in isr_rxdata()
2061 info->rbuf_fill_index = i; in isr_rxdata()
2062 info->rbuf_fill_count = count; in isr_rxdata()
2069 DBGISR(("%s isr_serial status=%04X\n", info->device_name, status)); in isr_serial()
2073 info->irq_occurred = true; in isr_serial()
2075 if (info->params.mode == MGSL_MODE_ASYNC) { in isr_serial()
2077 if (info->tx_active) in isr_serial()
2080 if (info->rx_pio && (status & IRQ_RXDATA)) in isr_serial()
2083 info->icount.brk++; in isr_serial()
2085 if (info->port.tty) { in isr_serial()
2086 if (!(status & info->ignore_status_mask)) { in isr_serial()
2087 if (info->read_status_mask & MASK_BREAK) { in isr_serial()
2088 tty_insert_flip_char(&info->port, 0, TTY_BREAK); in isr_serial()
2089 if (info->port.flags & ASYNC_SAK) in isr_serial()
2090 do_SAK(info->port.tty); in isr_serial()
2098 if (info->rx_pio && (status & IRQ_RXDATA)) in isr_serial()
2102 info->icount.rxidle++; in isr_serial()
2104 info->icount.exithunt++; in isr_serial()
2105 wake_up_interruptible(&info->event_wait_q); in isr_serial()
2126 DBGISR(("%s isr_rdma status=%08x\n", info->device_name, status)); in isr_rdma()
2142 DBGISR(("%s isr_rdma rx_restart=1\n", info->device_name)); in isr_rdma()
2143 info->rx_restart = true; in isr_rdma()
2145 info->pending_bh |= BH_RECEIVE; in isr_rdma()
2152 DBGISR(("%s isr_tdma status=%08x\n", info->device_name, status)); in isr_tdma()
2169 info->pending_bh |= BH_TRANSMIT; in isr_tdma()
2176 * if there are unsent buffers then info->tbuf_start
2181 unsigned int i = info->tbuf_current; in unsent_tbufs()
2191 i--; in unsent_tbufs()
2193 i = info->tbuf_count - 1; in unsent_tbufs()
2194 if (!desc_count(info->tbufs[i])) in unsent_tbufs()
2196 info->tbuf_start = i; in unsent_tbufs()
2198 } while (i != info->tbuf_current); in unsent_tbufs()
2205 DBGISR(("%s txeom status=%04x\n", info->device_name, status)); in isr_txeom()
2215 if (info->tx_active) { in isr_txeom()
2216 if (info->params.mode != MGSL_MODE_ASYNC) { in isr_txeom()
2218 info->icount.txunder++; in isr_txeom()
2220 info->icount.txok++; in isr_txeom()
2228 info->tx_active = false; in isr_txeom()
2230 del_timer(&info->tx_timer); in isr_txeom()
2232 if (info->params.mode != MGSL_MODE_ASYNC && info->drop_rts_on_tx_done) { in isr_txeom()
2233 info->signals &= ~SerialSignal_RTS; in isr_txeom()
2234 info->drop_rts_on_tx_done = false; in isr_txeom()
2239 if (info->netcount) in isr_txeom()
2244 if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) { in isr_txeom()
2248 info->pending_bh |= BH_TRANSMIT; in isr_txeom()
2258 for (w = info->gpio_wait_q, prev = NULL ; w != NULL ; w = w->next) { in isr_gpio()
2259 if (w->data & changed) { in isr_gpio()
2260 w->data = state; in isr_gpio()
2261 wake_up_interruptible(&w->q); in isr_gpio()
2263 prev->next = w->next; in isr_gpio()
2265 info->gpio_wait_q = w->next; in isr_gpio()
2282 DBGISR(("slgt_interrupt irq=%d entry\n", info->irq_level)); in slgt_interrupt()
2285 DBGISR(("%s gsr=%08x\n", info->device_name, gsr)); in slgt_interrupt()
2286 info->irq_occurred = true; in slgt_interrupt()
2287 for(i=0; i < info->port_count ; i++) { in slgt_interrupt()
2288 if (info->port_array[i] == NULL) in slgt_interrupt()
2290 spin_lock(&info->port_array[i]->lock); in slgt_interrupt()
2292 isr_serial(info->port_array[i]); in slgt_interrupt()
2294 isr_rdma(info->port_array[i]); in slgt_interrupt()
2296 isr_tdma(info->port_array[i]); in slgt_interrupt()
2297 spin_unlock(&info->port_array[i]->lock); in slgt_interrupt()
2301 if (info->gpio_present) { in slgt_interrupt()
2304 spin_lock(&info->lock); in slgt_interrupt()
2306 DBGISR(("%s iosr=%08x\n", info->device_name, changed)); in slgt_interrupt()
2311 for (i=0 ; i < info->port_count ; i++) { in slgt_interrupt()
2312 if (info->port_array[i] != NULL) in slgt_interrupt()
2313 isr_gpio(info->port_array[i], changed, state); in slgt_interrupt()
2316 spin_unlock(&info->lock); in slgt_interrupt()
2319 for(i=0; i < info->port_count ; i++) { in slgt_interrupt()
2320 struct slgt_info *port = info->port_array[i]; in slgt_interrupt()
2323 spin_lock(&port->lock); in slgt_interrupt()
2324 if ((port->port.count || port->netcount) && in slgt_interrupt()
2325 port->pending_bh && !port->bh_running && in slgt_interrupt()
2326 !port->bh_requested) { in slgt_interrupt()
2327 DBGISR(("%s bh queued\n", port->device_name)); in slgt_interrupt()
2328 schedule_work(&port->task); in slgt_interrupt()
2329 port->bh_requested = true; in slgt_interrupt()
2331 spin_unlock(&port->lock); in slgt_interrupt()
2334 DBGISR(("slgt_interrupt irq=%d exit\n", info->irq_level)); in slgt_interrupt()
2340 DBGINFO(("%s startup\n", info->device_name)); in startup()
2342 if (tty_port_initialized(&info->port)) in startup()
2345 if (!info->tx_buf) { in startup()
2346 info->tx_buf = kmalloc(info->max_frame_size, GFP_KERNEL); in startup()
2347 if (!info->tx_buf) { in startup()
2348 DBGERR(("%s can't allocate tx buffer\n", info->device_name)); in startup()
2349 return -ENOMEM; in startup()
2353 info->pending_bh = 0; in startup()
2355 memset(&info->icount, 0, sizeof(info->icount)); in startup()
2360 if (info->port.tty) in startup()
2361 clear_bit(TTY_IO_ERROR, &info->port.tty->flags); in startup()
2363 tty_port_set_initialized(&info->port, 1); in startup()
2375 if (!tty_port_initialized(&info->port)) in shutdown()
2378 DBGINFO(("%s shutdown\n", info->device_name)); in shutdown()
2382 wake_up_interruptible(&info->status_event_wait_q); in shutdown()
2383 wake_up_interruptible(&info->event_wait_q); in shutdown()
2385 del_timer_sync(&info->tx_timer); in shutdown()
2386 del_timer_sync(&info->rx_timer); in shutdown()
2388 kfree(info->tx_buf); in shutdown()
2389 info->tx_buf = NULL; in shutdown()
2391 spin_lock_irqsave(&info->lock,flags); in shutdown()
2398 if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) { in shutdown()
2399 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in shutdown()
2403 flush_cond_wait(&info->gpio_wait_q); in shutdown()
2405 spin_unlock_irqrestore(&info->lock,flags); in shutdown()
2407 if (info->port.tty) in shutdown()
2408 set_bit(TTY_IO_ERROR, &info->port.tty->flags); in shutdown()
2410 tty_port_set_initialized(&info->port, 0); in shutdown()
2417 spin_lock_irqsave(&info->lock,flags); in program_hw()
2422 if (info->params.mode != MGSL_MODE_ASYNC || in program_hw()
2423 info->netcount) in program_hw()
2430 info->dcd_chkcount = 0; in program_hw()
2431 info->cts_chkcount = 0; in program_hw()
2432 info->ri_chkcount = 0; in program_hw()
2433 info->dsr_chkcount = 0; in program_hw()
2438 if (info->netcount || in program_hw()
2439 (info->port.tty && info->port.tty->termios.c_cflag & CREAD)) in program_hw()
2442 spin_unlock_irqrestore(&info->lock,flags); in program_hw()
2453 if (!info->port.tty) in change_params()
2455 DBGINFO(("%s change_params\n", info->device_name)); in change_params()
2457 cflag = info->port.tty->termios.c_cflag; in change_params()
2462 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in change_params()
2464 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in change_params()
2469 case CS5: info->params.data_bits = 5; break; in change_params()
2470 case CS6: info->params.data_bits = 6; break; in change_params()
2471 case CS7: info->params.data_bits = 7; break; in change_params()
2472 case CS8: info->params.data_bits = 8; break; in change_params()
2473 default: info->params.data_bits = 7; break; in change_params()
2476 info->params.stop_bits = (cflag & CSTOPB) ? 2 : 1; in change_params()
2479 info->params.parity = (cflag & PARODD) ? ASYNC_PARITY_ODD : ASYNC_PARITY_EVEN; in change_params()
2481 info->params.parity = ASYNC_PARITY_NONE; in change_params()
2486 bits_per_char = info->params.data_bits + in change_params()
2487 info->params.stop_bits + 1; in change_params()
2489 info->params.data_rate = tty_get_baud_rate(info->port.tty); in change_params()
2491 if (info->params.data_rate) { in change_params()
2492 info->timeout = (32*HZ*bits_per_char) / in change_params()
2493 info->params.data_rate; in change_params()
2495 info->timeout += HZ/50; /* Add .02 seconds of slop */ in change_params()
2497 tty_port_set_cts_flow(&info->port, cflag & CRTSCTS); in change_params()
2498 tty_port_set_check_carrier(&info->port, ~cflag & CLOCAL); in change_params()
2502 info->read_status_mask = IRQ_RXOVER; in change_params()
2503 if (I_INPCK(info->port.tty)) in change_params()
2504 info->read_status_mask |= MASK_PARITY | MASK_FRAMING; in change_params()
2505 if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty)) in change_params()
2506 info->read_status_mask |= MASK_BREAK; in change_params()
2507 if (I_IGNPAR(info->port.tty)) in change_params()
2508 info->ignore_status_mask |= MASK_PARITY | MASK_FRAMING; in change_params()
2509 if (I_IGNBRK(info->port.tty)) { in change_params()
2510 info->ignore_status_mask |= MASK_BREAK; in change_params()
2514 if (I_IGNPAR(info->port.tty)) in change_params()
2515 info->ignore_status_mask |= MASK_OVERRUN; in change_params()
2523 DBGINFO(("%s get_stats\n", info->device_name)); in get_stats()
2525 memset(&info->icount, 0, sizeof(info->icount)); in get_stats()
2527 if (copy_to_user(user_icount, &info->icount, sizeof(struct mgsl_icount))) in get_stats()
2528 return -EFAULT; in get_stats()
2535 DBGINFO(("%s get_params\n", info->device_name)); in get_params()
2536 if (copy_to_user(user_params, &info->params, sizeof(MGSL_PARAMS))) in get_params()
2537 return -EFAULT; in get_params()
2546 DBGINFO(("%s set_params\n", info->device_name)); in set_params()
2548 return -EFAULT; in set_params()
2550 spin_lock_irqsave(&info->lock, flags); in set_params()
2552 info->base_clock = tmp_params.clock_speed; in set_params()
2554 memcpy(&info->params, &tmp_params, sizeof(MGSL_PARAMS)); in set_params()
2555 spin_unlock_irqrestore(&info->lock, flags); in set_params()
2564 DBGINFO(("%s get_txidle=%d\n", info->device_name, info->idle_mode)); in get_txidle()
2565 if (put_user(info->idle_mode, idle_mode)) in get_txidle()
2566 return -EFAULT; in get_txidle()
2573 DBGINFO(("%s set_txidle(%d)\n", info->device_name, idle_mode)); in set_txidle()
2574 spin_lock_irqsave(&info->lock,flags); in set_txidle()
2575 info->idle_mode = idle_mode; in set_txidle()
2576 if (info->params.mode != MGSL_MODE_ASYNC) in set_txidle()
2578 spin_unlock_irqrestore(&info->lock,flags); in set_txidle()
2585 DBGINFO(("%s tx_enable(%d)\n", info->device_name, enable)); in tx_enable()
2586 spin_lock_irqsave(&info->lock,flags); in tx_enable()
2588 if (!info->tx_enabled) in tx_enable()
2591 if (info->tx_enabled) in tx_enable()
2594 spin_unlock_irqrestore(&info->lock,flags); in tx_enable()
2604 DBGINFO(("%s tx_abort\n", info->device_name)); in tx_abort()
2605 spin_lock_irqsave(&info->lock,flags); in tx_abort()
2607 spin_unlock_irqrestore(&info->lock,flags); in tx_abort()
2615 DBGINFO(("%s rx_enable(%08x)\n", info->device_name, enable)); in rx_enable()
2616 spin_lock_irqsave(&info->lock,flags); in rx_enable()
2625 spin_unlock_irqrestore(&info->lock, flags); in rx_enable()
2626 return -EINVAL; in rx_enable()
2628 info->rbuf_fill_level = rbuf_fill_level; in rx_enable()
2630 info->rx_pio = 1; /* PIO mode */ in rx_enable()
2632 info->rx_pio = 0; /* DMA mode */ in rx_enable()
2644 if (!info->rx_enabled) in rx_enable()
2651 if (info->rx_enabled) in rx_enable()
2654 spin_unlock_irqrestore(&info->lock,flags); in rx_enable()
2673 return -EFAULT; in wait_mgsl_event()
2675 DBGINFO(("%s wait_mgsl_event(%d)\n", info->device_name, mask)); in wait_mgsl_event()
2677 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2681 s = info->signals; in wait_mgsl_event()
2689 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2694 cprev = info->icount; in wait_mgsl_event()
2695 oldsigs = info->input_signal_events; in wait_mgsl_event()
2705 add_wait_queue(&info->event_wait_q, &wait); in wait_mgsl_event()
2707 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2712 rc = -ERESTARTSYS; in wait_mgsl_event()
2717 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2718 cnow = info->icount; in wait_mgsl_event()
2719 newsigs = info->input_signal_events; in wait_mgsl_event()
2721 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2734 rc = -EIO; in wait_mgsl_event()
2756 remove_wait_queue(&info->event_wait_q, &wait); in wait_mgsl_event()
2761 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2762 if (!waitqueue_active(&info->event_wait_q)) { in wait_mgsl_event()
2767 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2777 DBGINFO(("%s get_interface=%x\n", info->device_name, info->if_mode)); in get_interface()
2778 if (put_user(info->if_mode, if_mode)) in get_interface()
2779 return -EFAULT; in get_interface()
2788 DBGINFO(("%s set_interface=%x)\n", info->device_name, if_mode)); in set_interface()
2789 spin_lock_irqsave(&info->lock,flags); in set_interface()
2790 info->if_mode = if_mode; in set_interface()
2796 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in set_interface()
2802 spin_unlock_irqrestore(&info->lock,flags); in set_interface()
2808 DBGINFO(("%s get_xsync=%x\n", info->device_name, info->xsync)); in get_xsync()
2809 if (put_user(info->xsync, xsync)) in get_xsync()
2810 return -EFAULT; in get_xsync()
2824 DBGINFO(("%s set_xsync=%x)\n", info->device_name, xsync)); in set_xsync()
2825 spin_lock_irqsave(&info->lock, flags); in set_xsync()
2826 info->xsync = xsync; in set_xsync()
2828 spin_unlock_irqrestore(&info->lock, flags); in set_xsync()
2834 DBGINFO(("%s get_xctrl=%x\n", info->device_name, info->xctrl)); in get_xctrl()
2835 if (put_user(info->xctrl, xctrl)) in get_xctrl()
2836 return -EFAULT; in get_xctrl()
2861 DBGINFO(("%s set_xctrl=%x)\n", info->device_name, xctrl)); in set_xctrl()
2862 spin_lock_irqsave(&info->lock, flags); in set_xctrl()
2863 info->xctrl = xctrl; in set_xctrl()
2865 spin_unlock_irqrestore(&info->lock, flags); in set_xctrl()
2884 if (!info->gpio_present) in set_gpio()
2885 return -EINVAL; in set_gpio()
2887 return -EFAULT; in set_gpio()
2889 info->device_name, gpio.state, gpio.smask, in set_gpio()
2892 spin_lock_irqsave(&info->port_array[0]->lock, flags); in set_gpio()
2905 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in set_gpio()
2916 if (!info->gpio_present) in get_gpio()
2917 return -EINVAL; in get_gpio()
2923 return -EFAULT; in get_gpio()
2925 info->device_name, gpio.state, gpio.dir)); in get_gpio()
2934 init_waitqueue_head(&w->q); in init_cond_wait()
2935 init_waitqueue_entry(&w->wait, current); in init_cond_wait()
2936 w->data = data; in init_cond_wait()
2942 add_wait_queue(&w->q, &w->wait); in add_cond_wait()
2943 w->next = *head; in add_cond_wait()
2950 remove_wait_queue(&cw->q, &cw->wait); in remove_cond_wait()
2952 for (w = *head, prev = NULL ; w != NULL ; prev = w, w = w->next) { in remove_cond_wait()
2955 prev->next = w->next; in remove_cond_wait()
2957 *head = w->next; in remove_cond_wait()
2966 wake_up_interruptible(&(*head)->q); in flush_cond_wait()
2967 *head = (*head)->next; in flush_cond_wait()
2975 * state - bit indicates target pin state
2976 * smask - set bit indicates watched pin
2979 * state. When 0 (no error) is returned, user_gpio->state is set to the
2995 if (!info->gpio_present) in wait_gpio()
2996 return -EINVAL; in wait_gpio()
2998 return -EFAULT; in wait_gpio()
3000 info->device_name, gpio.state, gpio.smask)); in wait_gpio()
3003 return -EINVAL; in wait_gpio()
3006 spin_lock_irqsave(&info->port_array[0]->lock, flags); in wait_gpio()
3017 add_cond_wait(&info->gpio_wait_q, &wait); in wait_gpio()
3018 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in wait_gpio()
3021 rc = -ERESTARTSYS; in wait_gpio()
3024 spin_lock_irqsave(&info->port_array[0]->lock, flags); in wait_gpio()
3025 remove_cond_wait(&info->gpio_wait_q, &wait); in wait_gpio()
3029 if (info->gpio_wait_q == NULL) in wait_gpio()
3031 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in wait_gpio()
3034 rc = -EFAULT; in wait_gpio()
3046 spin_lock_irqsave(&info->lock,flags); in modem_input_wait()
3047 cprev = info->icount; in modem_input_wait()
3048 add_wait_queue(&info->status_event_wait_q, &wait); in modem_input_wait()
3050 spin_unlock_irqrestore(&info->lock,flags); in modem_input_wait()
3055 rc = -ERESTARTSYS; in modem_input_wait()
3060 spin_lock_irqsave(&info->lock,flags); in modem_input_wait()
3061 cnow = info->icount; in modem_input_wait()
3063 spin_unlock_irqrestore(&info->lock,flags); in modem_input_wait()
3067 cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) { in modem_input_wait()
3068 rc = -EIO; in modem_input_wait()
3075 (arg & TIOCM_CD && cnow.dcd != cprev.dcd) || in modem_input_wait()
3083 remove_wait_queue(&info->status_event_wait_q, &wait); in modem_input_wait()
3093 struct slgt_info *info = tty->driver_data; in tiocmget()
3097 spin_lock_irqsave(&info->lock,flags); in tiocmget()
3099 spin_unlock_irqrestore(&info->lock,flags); in tiocmget()
3101 result = ((info->signals & SerialSignal_RTS) ? TIOCM_RTS:0) + in tiocmget()
3102 ((info->signals & SerialSignal_DTR) ? TIOCM_DTR:0) + in tiocmget()
3103 ((info->signals & SerialSignal_DCD) ? TIOCM_CAR:0) + in tiocmget()
3104 ((info->signals & SerialSignal_RI) ? TIOCM_RNG:0) + in tiocmget()
3105 ((info->signals & SerialSignal_DSR) ? TIOCM_DSR:0) + in tiocmget()
3106 ((info->signals & SerialSignal_CTS) ? TIOCM_CTS:0); in tiocmget()
3108 DBGINFO(("%s tiocmget value=%08X\n", info->device_name, result)); in tiocmget()
3122 struct slgt_info *info = tty->driver_data; in tiocmset()
3125 DBGINFO(("%s tiocmset(%x,%x)\n", info->device_name, set, clear)); in tiocmset()
3128 info->signals |= SerialSignal_RTS; in tiocmset()
3130 info->signals |= SerialSignal_DTR; in tiocmset()
3132 info->signals &= ~SerialSignal_RTS; in tiocmset()
3134 info->signals &= ~SerialSignal_DTR; in tiocmset()
3136 spin_lock_irqsave(&info->lock,flags); in tiocmset()
3138 spin_unlock_irqrestore(&info->lock,flags); in tiocmset()
3147 spin_lock_irqsave(&info->lock,flags); in carrier_raised()
3149 spin_unlock_irqrestore(&info->lock,flags); in carrier_raised()
3150 return (info->signals & SerialSignal_DCD) ? 1 : 0; in carrier_raised()
3158 spin_lock_irqsave(&info->lock,flags); in dtr_rts()
3160 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in dtr_rts()
3162 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in dtr_rts()
3164 spin_unlock_irqrestore(&info->lock,flags); in dtr_rts()
3179 struct tty_port *port = &info->port; in block_til_ready()
3181 DBGINFO(("%s block_til_ready\n", tty->driver->name)); in block_til_ready()
3183 if (filp->f_flags & O_NONBLOCK || tty_io_error(tty)) { in block_til_ready()
3194 * this loop, port->count is dropped by one, so that in block_til_ready()
3200 add_wait_queue(&port->open_wait, &wait); in block_til_ready()
3202 spin_lock_irqsave(&info->lock, flags); in block_til_ready()
3203 port->count--; in block_til_ready()
3204 spin_unlock_irqrestore(&info->lock, flags); in block_til_ready()
3205 port->blocked_open++; in block_til_ready()
3214 retval = (port->flags & ASYNC_HUP_NOTIFY) ? in block_til_ready()
3215 -EAGAIN : -ERESTARTSYS; in block_til_ready()
3224 retval = -ERESTARTSYS; in block_til_ready()
3228 DBGINFO(("%s block_til_ready wait\n", tty->driver->name)); in block_til_ready()
3235 remove_wait_queue(&port->open_wait, &wait); in block_til_ready()
3238 port->count++; in block_til_ready()
3239 port->blocked_open--; in block_til_ready()
3244 DBGINFO(("%s block_til_ready ready, rc=%d\n", tty->driver->name, retval)); in block_til_ready()
3252 * 32-bit CRC and status byte when configured to do so
3256 info->tmp_rbuf = kmalloc(info->max_frame_size + 5, GFP_KERNEL); in alloc_tmp_rbuf()
3257 if (info->tmp_rbuf == NULL) in alloc_tmp_rbuf()
3258 return -ENOMEM; in alloc_tmp_rbuf()
3260 info->flag_buf = kzalloc(info->max_frame_size + 5, GFP_KERNEL); in alloc_tmp_rbuf()
3261 if (!info->flag_buf) { in alloc_tmp_rbuf()
3262 kfree(info->tmp_rbuf); in alloc_tmp_rbuf()
3263 info->tmp_rbuf = NULL; in alloc_tmp_rbuf()
3264 return -ENOMEM; in alloc_tmp_rbuf()
3271 kfree(info->tmp_rbuf); in free_tmp_rbuf()
3272 info->tmp_rbuf = NULL; in free_tmp_rbuf()
3273 kfree(info->flag_buf); in free_tmp_rbuf()
3274 info->flag_buf = NULL; in free_tmp_rbuf()
3286 info->bufs = dma_alloc_coherent(&info->pdev->dev, DESC_LIST_SIZE, in alloc_desc()
3287 &info->bufs_dma_addr, GFP_KERNEL); in alloc_desc()
3288 if (info->bufs == NULL) in alloc_desc()
3289 return -ENOMEM; in alloc_desc()
3291 info->rbufs = (struct slgt_desc*)info->bufs; in alloc_desc()
3292 info->tbufs = ((struct slgt_desc*)info->bufs) + info->rbuf_count; in alloc_desc()
3294 pbufs = (unsigned int)info->bufs_dma_addr; in alloc_desc()
3300 for (i=0; i < info->rbuf_count; i++) { in alloc_desc()
3302 info->rbufs[i].pdesc = pbufs + (i * sizeof(struct slgt_desc)); in alloc_desc()
3305 if (i == info->rbuf_count - 1) in alloc_desc()
3306 info->rbufs[i].next = cpu_to_le32(pbufs); in alloc_desc()
3308 info->rbufs[i].next = cpu_to_le32(pbufs + ((i+1) * sizeof(struct slgt_desc))); in alloc_desc()
3309 set_desc_count(info->rbufs[i], DMABUFSIZE); in alloc_desc()
3312 for (i=0; i < info->tbuf_count; i++) { in alloc_desc()
3314 info->tbufs[i].pdesc = pbufs + ((info->rbuf_count + i) * sizeof(struct slgt_desc)); in alloc_desc()
3317 if (i == info->tbuf_count - 1) in alloc_desc()
3318 info->tbufs[i].next = cpu_to_le32(pbufs + info->rbuf_count * sizeof(struct slgt_desc)); in alloc_desc()
3320 …info->tbufs[i].next = cpu_to_le32(pbufs + ((info->rbuf_count + i + 1) * sizeof(struct slgt_desc))); in alloc_desc()
3328 if (info->bufs != NULL) { in free_desc()
3329 dma_free_coherent(&info->pdev->dev, DESC_LIST_SIZE, in free_desc()
3330 info->bufs, info->bufs_dma_addr); in free_desc()
3331 info->bufs = NULL; in free_desc()
3332 info->rbufs = NULL; in free_desc()
3333 info->tbufs = NULL; in free_desc()
3341 bufs[i].buf = dma_alloc_coherent(&info->pdev->dev, DMABUFSIZE, in alloc_bufs()
3344 return -ENOMEM; in alloc_bufs()
3356 dma_free_coherent(&info->pdev->dev, DMABUFSIZE, bufs[i].buf, in free_bufs()
3364 info->rbuf_count = 32; in alloc_dma_bufs()
3365 info->tbuf_count = 32; in alloc_dma_bufs()
3368 alloc_bufs(info, info->rbufs, info->rbuf_count) < 0 || in alloc_dma_bufs()
3369 alloc_bufs(info, info->tbufs, info->tbuf_count) < 0 || in alloc_dma_bufs()
3371 DBGERR(("%s DMA buffer alloc fail\n", info->device_name)); in alloc_dma_bufs()
3372 return -ENOMEM; in alloc_dma_bufs()
3380 if (info->bufs) { in free_dma_bufs()
3381 free_bufs(info, info->rbufs, info->rbuf_count); in free_dma_bufs()
3382 free_bufs(info, info->tbufs, info->tbuf_count); in free_dma_bufs()
3390 if (request_mem_region(info->phys_reg_addr, SLGT_REG_SIZE, "synclink_gt") == NULL) { in claim_resources()
3392 info->device_name, info->phys_reg_addr)); in claim_resources()
3393 info->init_error = DiagStatus_AddressConflict; in claim_resources()
3397 info->reg_addr_requested = true; in claim_resources()
3399 info->reg_addr = ioremap(info->phys_reg_addr, SLGT_REG_SIZE); in claim_resources()
3400 if (!info->reg_addr) { in claim_resources()
3402 info->device_name, info->phys_reg_addr)); in claim_resources()
3403 info->init_error = DiagStatus_CantAssignPciResources; in claim_resources()
3410 return -ENODEV; in claim_resources()
3415 if (info->irq_requested) { in release_resources()
3416 free_irq(info->irq_level, info); in release_resources()
3417 info->irq_requested = false; in release_resources()
3420 if (info->reg_addr_requested) { in release_resources()
3421 release_mem_region(info->phys_reg_addr, SLGT_REG_SIZE); in release_resources()
3422 info->reg_addr_requested = false; in release_resources()
3425 if (info->reg_addr) { in release_resources()
3426 iounmap(info->reg_addr); in release_resources()
3427 info->reg_addr = NULL; in release_resources()
3438 info->next_device = NULL; in add_device()
3439 info->line = slgt_device_count; in add_device()
3440 sprintf(info->device_name, "%s%d", tty_dev_prefix, info->line); in add_device()
3442 if (info->line < MAX_DEVICES) { in add_device()
3443 if (maxframe[info->line]) in add_device()
3444 info->max_frame_size = maxframe[info->line]; in add_device()
3453 while(current_dev->next_device) in add_device()
3454 current_dev = current_dev->next_device; in add_device()
3455 current_dev->next_device = info; in add_device()
3458 if (info->max_frame_size < 4096) in add_device()
3459 info->max_frame_size = 4096; in add_device()
3460 else if (info->max_frame_size > 65535) in add_device()
3461 info->max_frame_size = 65535; in add_device()
3463 switch(info->pdev->device) { in add_device()
3475 info->params.mode = MGSL_MODE_ASYNC; in add_device()
3481 devstr, info->device_name, info->phys_reg_addr, in add_device()
3482 info->irq_level, info->max_frame_size); in add_device()
3507 tty_port_init(&info->port); in alloc_dev()
3508 info->port.ops = &slgt_port_ops; in alloc_dev()
3509 info->magic = MGSL_MAGIC; in alloc_dev()
3510 INIT_WORK(&info->task, bh_handler); in alloc_dev()
3511 info->max_frame_size = 4096; in alloc_dev()
3512 info->base_clock = 14745600; in alloc_dev()
3513 info->rbuf_fill_level = DMABUFSIZE; in alloc_dev()
3514 info->port.close_delay = 5*HZ/10; in alloc_dev()
3515 info->port.closing_wait = 30*HZ; in alloc_dev()
3516 init_waitqueue_head(&info->status_event_wait_q); in alloc_dev()
3517 init_waitqueue_head(&info->event_wait_q); in alloc_dev()
3518 spin_lock_init(&info->netlock); in alloc_dev()
3519 memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS)); in alloc_dev()
3520 info->idle_mode = HDLC_TXIDLE_FLAGS; in alloc_dev()
3521 info->adapter_num = adapter_num; in alloc_dev()
3522 info->port_num = port_num; in alloc_dev()
3524 timer_setup(&info->tx_timer, tx_timeout, 0); in alloc_dev()
3525 timer_setup(&info->rx_timer, rx_timeout, 0); in alloc_dev()
3528 info->pdev = pdev; in alloc_dev()
3529 info->irq_level = pdev->irq; in alloc_dev()
3530 info->phys_reg_addr = pci_resource_start(pdev,0); in alloc_dev()
3532 info->bus_type = MGSL_BUS_TYPE_PCI; in alloc_dev()
3533 info->irq_flags = IRQF_SHARED; in alloc_dev()
3535 info->init_error = -1; /* assume error, set to 0 on successful init */ in alloc_dev()
3547 if (pdev->device == SYNCLINK_GT2_DEVICE_ID) in device_init()
3549 else if (pdev->device == SYNCLINK_GT4_DEVICE_ID) in device_init()
3556 for (--i; i >= 0; --i) { in device_init()
3557 tty_port_destroy(&port_array[i]->port); in device_init()
3566 memcpy(port_array[i]->port_array, port_array, sizeof(port_array)); in device_init()
3568 port_array[i]->port_count = port_count; in device_init()
3569 spin_lock_init(&port_array[i]->lock); in device_init()
3579 port_array[i]->irq_level = port_array[0]->irq_level; in device_init()
3580 port_array[i]->reg_addr = port_array[0]->reg_addr; in device_init()
3584 if (request_irq(port_array[0]->irq_level, in device_init()
3586 port_array[0]->irq_flags, in device_init()
3587 port_array[0]->device_name, in device_init()
3590 port_array[0]->device_name, in device_init()
3591 port_array[0]->irq_level)); in device_init()
3593 port_array[0]->irq_requested = true; in device_init()
3596 port_array[i]->init_error = port_array[0]->init_error; in device_init()
3597 port_array[i]->gpio_present = port_array[0]->gpio_present; in device_init()
3604 tty_port_register_device(&info->port, serial_driver, info->line, in device_init()
3605 &info->pdev->dev); in device_init()
3614 return -EIO; in init_one()
3660 for (info=slgt_device_list ; info != NULL ; info=info->next_device) in slgt_cleanup()
3661 tty_unregister_device(serial_driver, info->line); in slgt_cleanup()
3672 info = info->next_device; in slgt_cleanup()
3683 if (info->port_num == 0) in slgt_cleanup()
3686 info = info->next_device; in slgt_cleanup()
3687 tty_port_destroy(&tmp->port); in slgt_cleanup()
3707 return -ENOMEM; in slgt_init()
3712 serial_driver->driver_name = slgt_driver_name; in slgt_init()
3713 serial_driver->name = tty_dev_prefix; in slgt_init()
3714 serial_driver->major = ttymajor; in slgt_init()
3715 serial_driver->minor_start = 64; in slgt_init()
3716 serial_driver->type = TTY_DRIVER_TYPE_SERIAL; in slgt_init()
3717 serial_driver->subtype = SERIAL_TYPE_NORMAL; in slgt_init()
3718 serial_driver->init_termios = tty_std_termios; in slgt_init()
3719 serial_driver->init_termios.c_cflag = in slgt_init()
3721 serial_driver->init_termios.c_ispeed = 9600; in slgt_init()
3722 serial_driver->init_termios.c_ospeed = 9600; in slgt_init()
3723 serial_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; in slgt_init()
3733 driver_name, serial_driver->major); in slgt_init()
3765 unsigned long reg_addr = ((unsigned long)info->reg_addr) + addr; \
3767 reg_addr += (info->port_num) * 32; \
3769 reg_addr += (info->port_num) * 16;
3843 if (info->params.mode != MGSL_MODE_ASYNC) { in enable_loopback()
3855 if (info->params.clock_speed) in enable_loopback()
3856 set_rate(info, info->params.clock_speed); in enable_loopback()
3868 unsigned int osc = info->base_clock; in set_rate()
3870 /* div = osc/rate - 1 in set_rate()
3879 div--; in set_rate()
3900 info->rx_enabled = false; in rx_stop()
3901 info->rx_restart = false; in rx_stop()
3921 if (info->rx_pio) { in rx_start()
3925 if (info->params.mode == MGSL_MODE_ASYNC) { in rx_start()
3933 wr_reg32(info, RDDAR, info->rbufs[0].pdesc); in rx_start()
3935 if (info->params.mode != MGSL_MODE_ASYNC) { in rx_start()
3949 info->rx_restart = false; in rx_start()
3950 info->rx_enabled = true; in rx_start()
3955 if (!info->tx_enabled) { in tx_start()
3958 info->tx_enabled = true; in tx_start()
3961 if (desc_count(info->tbufs[info->tbuf_start])) { in tx_start()
3962 info->drop_rts_on_tx_done = false; in tx_start()
3964 if (info->params.mode != MGSL_MODE_ASYNC) { in tx_start()
3965 if (info->params.flags & HDLC_FLAG_AUTO_RTS) { in tx_start()
3967 if (!(info->signals & SerialSignal_RTS)) { in tx_start()
3968 info->signals |= SerialSignal_RTS; in tx_start()
3970 info->drop_rts_on_tx_done = true; in tx_start()
3985 wr_reg32(info, TDDAR, info->tbufs[info->tbuf_start].pdesc); in tx_start()
3987 info->tx_active = true; in tx_start()
3995 del_timer(&info->tx_timer); in tx_stop()
4010 info->tx_enabled = false; in tx_stop()
4011 info->tx_active = false; in tx_stop()
4016 if (!info->reg_addr) in reset_port()
4022 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in reset_port()
4031 for (i=0; i < info->port_count; ++i) { in reset_adapter()
4032 if (info->port_array[i]) in reset_adapter()
4033 reset_port(info->port_array[i]); in reset_adapter()
4061 * 00 auto-CTS enable in async_mode()
4065 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in async_mode()
4068 if (info->params.parity != ASYNC_PARITY_NONE) { in async_mode()
4070 if (info->params.parity == ASYNC_PARITY_ODD) in async_mode()
4074 switch (info->params.data_bits) in async_mode()
4081 if (info->params.stop_bits != 1) in async_mode()
4084 if (info->params.flags & HDLC_FLAG_AUTO_CTS) in async_mode()
4104 * 00 auto-DCD enable in async_mode()
4108 if (info->params.parity != ASYNC_PARITY_NONE) { in async_mode()
4110 if (info->params.parity == ASYNC_PARITY_ODD) in async_mode()
4114 switch (info->params.data_bits) in async_mode()
4121 if (info->params.flags & HDLC_FLAG_AUTO_DCD) in async_mode()
4151 * 05 DCD IRQ enable in async_mode()
4154 * 02 1=txd->rxd internal loopback enable in async_mode()
4160 if ((rd_reg32(info, JCR) & BIT8) && info->params.data_rate && in async_mode()
4161 ((info->base_clock < (info->params.data_rate * 16)) || in async_mode()
4162 (info->base_clock % (info->params.data_rate * 16)))) { in async_mode()
4165 set_rate(info, info->params.data_rate * 8); in async_mode()
4168 set_rate(info, info->params.data_rate * 16); in async_mode()
4174 if (info->params.loopback) in async_mode()
4204 * 00 auto-CTS enable in sync_mode()
4208 switch(info->params.mode) { in sync_mode()
4216 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in sync_mode()
4219 switch(info->params.encoding) in sync_mode()
4230 switch (info->params.crc_type & HDLC_CRC_MASK) in sync_mode()
4236 if (info->params.preamble != HDLC_PREAMBLE_PATTERN_NONE) in sync_mode()
4239 switch (info->params.preamble_length) in sync_mode()
4246 if (info->params.flags & HDLC_FLAG_AUTO_CTS) in sync_mode()
4253 switch (info->params.preamble) in sync_mode()
4279 * 00 auto-DCD enable in sync_mode()
4283 switch(info->params.mode) { in sync_mode()
4292 switch(info->params.encoding) in sync_mode()
4303 switch (info->params.crc_type & HDLC_CRC_MASK) in sync_mode()
4309 if (info->params.flags & HDLC_FLAG_AUTO_DCD) in sync_mode()
4323 if (info->params.flags & HDLC_FLAG_TXC_BRG) in sync_mode()
4328 if (info->params.flags & HDLC_FLAG_RXC_DPLL) in sync_mode()
4333 else if (info->params.flags & HDLC_FLAG_TXC_DPLL) in sync_mode()
4335 else if (info->params.flags & HDLC_FLAG_TXC_RXCPIN) in sync_mode()
4338 if (info->params.flags & HDLC_FLAG_RXC_BRG) in sync_mode()
4340 else if (info->params.flags & HDLC_FLAG_RXC_DPLL) in sync_mode()
4342 else if (info->params.flags & HDLC_FLAG_RXC_TXCPIN) in sync_mode()
4345 if (info->params.clock_speed) in sync_mode()
4350 if (info->params.flags & (HDLC_FLAG_TXC_DPLL + HDLC_FLAG_RXC_DPLL)) in sync_mode()
4353 switch(info->params.encoding) in sync_mode()
4366 set_rate(info, info->params.clock_speed * 16); in sync_mode()
4369 set_rate(info, info->params.clock_speed); in sync_mode()
4387 * 05 DCD IRQ enable in sync_mode()
4390 * 02 1=txd->rxd internal loopback enable in sync_mode()
4396 if (info->params.loopback) in sync_mode()
4412 if (info->idle_mode & HDLC_TXIDLE_CUSTOM_16) { in tx_set_idle()
4416 wr_reg8(info, TPR, (unsigned char)((info->idle_mode >> 8) & 0xff)); in tx_set_idle()
4423 if (info->idle_mode & (HDLC_TXIDLE_CUSTOM_8 | HDLC_TXIDLE_CUSTOM_16)) { in tx_set_idle()
4425 val = (unsigned char)(info->idle_mode & 0xff); in tx_set_idle()
4428 switch(info->idle_mode) in tx_set_idle()
4450 info->signals &= SerialSignal_RTS | SerialSignal_DTR; in get_gtsignals()
4453 info->signals |= SerialSignal_DSR; in get_gtsignals()
4455 info->signals |= SerialSignal_CTS; in get_gtsignals()
4457 info->signals |= SerialSignal_DCD; in get_gtsignals()
4459 info->signals |= SerialSignal_RI; in get_gtsignals()
4478 switch(info->if_mode & MGSL_INTERFACE_MASK) in msc_set_vcr()
4491 if (info->if_mode & MGSL_INTERFACE_MSB_FIRST) in msc_set_vcr()
4493 if (info->signals & SerialSignal_DTR) in msc_set_vcr()
4495 if (info->signals & SerialSignal_RTS) in msc_set_vcr()
4497 if (info->if_mode & MGSL_INTERFACE_LL) in msc_set_vcr()
4499 if (info->if_mode & MGSL_INTERFACE_RL) in msc_set_vcr()
4510 if (info->signals & SerialSignal_DTR) in set_gtsignals()
4514 if (info->signals & SerialSignal_RTS) in set_gtsignals()
4530 info->rbufs[i].status = 0; in free_rbufs()
4531 set_desc_count(info->rbufs[i], info->rbuf_fill_level); in free_rbufs()
4534 if (++i == info->rbuf_count) in free_rbufs()
4537 info->rbuf_current = i; in free_rbufs()
4545 free_rbufs(info, 0, info->rbuf_count - 1); in reset_rbufs()
4546 info->rbuf_fill_index = 0; in reset_rbufs()
4547 info->rbuf_fill_count = 0; in reset_rbufs()
4561 struct tty_struct *tty = info->port.tty; in rx_get_frame()
4565 switch (info->params.crc_type & HDLC_CRC_MASK) { in rx_get_frame()
4574 start = end = info->rbuf_current; in rx_get_frame()
4577 if (!desc_complete(info->rbufs[end])) in rx_get_frame()
4580 if (framesize == 0 && info->params.addr_filter != 0xff) in rx_get_frame()
4581 addr_field = info->rbufs[end].buf[0]; in rx_get_frame()
4583 framesize += desc_count(info->rbufs[end]); in rx_get_frame()
4585 if (desc_eof(info->rbufs[end])) in rx_get_frame()
4588 if (++end == info->rbuf_count) in rx_get_frame()
4591 if (end == info->rbuf_current) { in rx_get_frame()
4592 if (info->rx_enabled){ in rx_get_frame()
4593 spin_lock_irqsave(&info->lock,flags); in rx_get_frame()
4595 spin_unlock_irqrestore(&info->lock,flags); in rx_get_frame()
4610 status = desc_status(info->rbufs[end]); in rx_get_frame()
4613 if ((info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_NONE) in rx_get_frame()
4617 (addr_field != 0xff && addr_field != info->params.addr_filter)) { in rx_get_frame()
4623 info->icount.rxshort++; in rx_get_frame()
4626 info->icount.rxcrc++; in rx_get_frame()
4627 if (!(info->params.crc_type & HDLC_CRC_RETURN_EX)) in rx_get_frame()
4633 info->netdev->stats.rx_errors++; in rx_get_frame()
4634 info->netdev->stats.rx_frame_errors++; in rx_get_frame()
4639 info->device_name, status, framesize)); in rx_get_frame()
4640 DBGDATA(info, info->rbufs[start].buf, min_t(int, framesize, info->rbuf_fill_level), "rx"); in rx_get_frame()
4643 if (!(info->params.crc_type & HDLC_CRC_RETURN_EX)) { in rx_get_frame()
4644 framesize -= crc_size; in rx_get_frame()
4648 if (framesize > info->max_frame_size + crc_size) in rx_get_frame()
4649 info->icount.rxlong++; in rx_get_frame()
4654 unsigned char *p = info->tmp_rbuf; in rx_get_frame()
4655 info->tmp_rbuf_count = framesize; in rx_get_frame()
4657 info->icount.rxok++; in rx_get_frame()
4660 int partial_count = min_t(int, copy_count, info->rbuf_fill_level); in rx_get_frame()
4661 memcpy(p, info->rbufs[i].buf, partial_count); in rx_get_frame()
4663 copy_count -= partial_count; in rx_get_frame()
4664 if (++i == info->rbuf_count) in rx_get_frame()
4668 if (info->params.crc_type & HDLC_CRC_RETURN_EX) { in rx_get_frame()
4674 if (info->netcount) in rx_get_frame()
4675 hdlcdev_rx(info,info->tmp_rbuf, framesize); in rx_get_frame()
4678 ldisc_receive_buf(tty, info->tmp_rbuf, info->flag_buf, framesize); in rx_get_frame()
4694 unsigned int i = info->rbuf_current; in rx_get_buf()
4697 if (!desc_complete(info->rbufs[i])) in rx_get_buf()
4699 count = desc_count(info->rbufs[i]); in rx_get_buf()
4700 switch(info->params.mode) { in rx_get_buf()
4705 if (desc_residue(info->rbufs[i])) in rx_get_buf()
4706 count--; in rx_get_buf()
4709 DBGDATA(info, info->rbufs[i].buf, count, "rx"); in rx_get_buf()
4712 ldisc_receive_buf(info->port.tty, info->rbufs[i].buf, in rx_get_buf()
4713 info->flag_buf, count); in rx_get_buf()
4721 info->tbuf_current = 0; in reset_tbufs()
4722 for (i=0 ; i < info->tbuf_count ; i++) { in reset_tbufs()
4723 info->tbufs[i].status = 0; in reset_tbufs()
4724 info->tbufs[i].count = 0; in reset_tbufs()
4734 unsigned int i = info->tbuf_current; in free_tbuf_count()
4738 if (desc_count(info->tbufs[i])) in free_tbuf_count()
4741 if (++i == info->tbuf_count) in free_tbuf_count()
4743 } while (i != info->tbuf_current); in free_tbuf_count()
4747 --count; in free_tbuf_count()
4759 unsigned int i = info->tbuf_current; in tbuf_bytes()
4776 count = desc_count(info->tbufs[i]); in tbuf_bytes()
4780 active_buf_count = info->tbufs[i].buf_count; in tbuf_bytes()
4781 if (++i == info->tbuf_count) in tbuf_bytes()
4783 } while (i != info->tbuf_current); in tbuf_bytes()
4796 if (info->tx_active) in tbuf_bytes()
4829 info->tbuf_start = i = info->tbuf_current; in tx_load()
4832 d = &info->tbufs[i]; in tx_load()
4835 memcpy(d->buf, buf, count); in tx_load()
4837 size -= count; in tx_load()
4844 if ((!size && info->params.mode == MGSL_MODE_HDLC) || in tx_load()
4845 info->params.mode == MGSL_MODE_RAW) in tx_load()
4851 if (i != info->tbuf_start) in tx_load()
4853 d->buf_count = count; in tx_load()
4855 if (++i == info->tbuf_count) in tx_load()
4859 info->tbuf_current = i; in tx_load()
4862 d = &info->tbufs[info->tbuf_start]; in tx_load()
4863 set_desc_count(*d, d->buf_count); in tx_load()
4866 if (!info->tx_active) in tx_load()
4886 rc = -ENODEV; in register_test()
4890 info->gpio_present = (rd_reg32(info, JCR) & BIT5) ? 1 : 0; in register_test()
4891 info->init_error = rc ? 0 : DiagStatus_AddressFailure; in register_test()
4899 struct tty_struct *oldtty = info->port.tty; in irq_test()
4900 u32 speed = info->params.data_rate; in irq_test()
4902 info->params.data_rate = 921600; in irq_test()
4903 info->port.tty = NULL; in irq_test()
4905 spin_lock_irqsave(&info->lock, flags); in irq_test()
4917 info->init_error = DiagStatus_IrqFailure; in irq_test()
4918 info->irq_occurred = false; in irq_test()
4920 spin_unlock_irqrestore(&info->lock, flags); in irq_test()
4923 while(timeout-- && !info->irq_occurred) in irq_test()
4926 spin_lock_irqsave(&info->lock,flags); in irq_test()
4928 spin_unlock_irqrestore(&info->lock,flags); in irq_test()
4930 info->params.data_rate = speed; in irq_test()
4931 info->port.tty = oldtty; in irq_test()
4933 info->init_error = info->irq_occurred ? 0 : DiagStatus_IrqFailure; in irq_test()
4934 return info->irq_occurred ? 0 : -ENODEV; in irq_test()
4942 if (desc_complete(info->rbufs[0])) { in loopback_test_rx()
4943 count = desc_count(info->rbufs[0]); in loopback_test_rx()
4944 src = info->rbufs[0].buf; in loopback_test_rx()
4945 dest = info->tmp_rbuf; in loopback_test_rx()
4947 for( ; count ; count-=2, src+=2) { in loopback_test_rx()
4952 info->tmp_rbuf_count++; in loopback_test_rx()
4955 DBGDATA(info, info->tmp_rbuf, info->tmp_rbuf_count, "rx"); in loopback_test_rx()
4968 int rc = -ENODEV; in loopback_test()
4971 struct tty_struct *oldtty = info->port.tty; in loopback_test()
4974 memcpy(¶ms, &info->params, sizeof(params)); in loopback_test()
4976 info->params.mode = MGSL_MODE_ASYNC; in loopback_test()
4977 info->params.data_rate = 921600; in loopback_test()
4978 info->params.loopback = 1; in loopback_test()
4979 info->port.tty = NULL; in loopback_test()
4985 info->tmp_rbuf_count = 0; in loopback_test()
4986 memset(info->tmp_rbuf, 0, TESTFRAMESIZE); in loopback_test()
4989 spin_lock_irqsave(&info->lock,flags); in loopback_test()
4993 spin_unlock_irqrestore(&info->lock, flags); in loopback_test()
4996 for (timeout = 100; timeout; --timeout) { in loopback_test()
5005 if (!rc && (info->tmp_rbuf_count != count || in loopback_test()
5006 memcmp(buf, info->tmp_rbuf, count))) { in loopback_test()
5007 rc = -ENODEV; in loopback_test()
5010 spin_lock_irqsave(&info->lock,flags); in loopback_test()
5012 spin_unlock_irqrestore(&info->lock,flags); in loopback_test()
5014 memcpy(&info->params, ¶ms, sizeof(info->params)); in loopback_test()
5015 info->port.tty = oldtty; in loopback_test()
5017 info->init_error = rc ? DiagStatus_DmaFailure : 0; in loopback_test()
5023 DBGINFO(("testing %s\n", info->device_name)); in adapter_test()
5026 info->device_name, info->phys_reg_addr); in adapter_test()
5029 info->device_name, info->irq_level); in adapter_test()
5031 printk("loopback test failure %s\n", info->device_name); in adapter_test()
5033 return info->init_error; in adapter_test()
5044 DBGINFO(("%s tx_timeout\n", info->device_name)); in tx_timeout()
5045 if(info->tx_active && info->params.mode == MGSL_MODE_HDLC) { in tx_timeout()
5046 info->icount.txtimeout++; in tx_timeout()
5048 spin_lock_irqsave(&info->lock,flags); in tx_timeout()
5050 spin_unlock_irqrestore(&info->lock,flags); in tx_timeout()
5053 if (info->netcount) in tx_timeout()
5068 DBGINFO(("%s rx_timeout\n", info->device_name)); in rx_timeout()
5069 spin_lock_irqsave(&info->lock, flags); in rx_timeout()
5070 info->pending_bh |= BH_RECEIVE; in rx_timeout()
5071 spin_unlock_irqrestore(&info->lock, flags); in rx_timeout()
5072 bh_handler(&info->task); in rx_timeout()