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");
165 #define dev_to_port(D) (dev_to_hdlc(D)->priv)
555 printk("%s %s data:\n",info->device_name, label); in trace_block()
570 count -= linecount; in trace_block()
581 printk("tbuf_current=%d\n", info->tbuf_current); in dump_tbufs()
582 for (i=0 ; i < info->tbuf_count ; i++) { in dump_tbufs()
584 i, le16_to_cpu(info->tbufs[i].count), le16_to_cpu(info->tbufs[i].status)); in dump_tbufs()
595 printk("rbuf_current=%d\n", info->rbuf_current); in dump_rbufs()
596 for (i=0 ; i < info->rbuf_count ; i++) { in dump_rbufs()
598 i, le16_to_cpu(info->rbufs[i].count), le16_to_cpu(info->rbufs[i].status)); in dump_rbufs()
612 if (info->magic != MGSL_MAGIC) { in sanity_check()
629 * ldisc_receive_buf - pass receive data to line discipline
639 if (ld->ops->receive_buf) in ldisc_receive_buf()
640 ld->ops->receive_buf(tty, data, flags, count); in ldisc_receive_buf()
653 line = tty->index; in open()
656 return -ENODEV; in open()
660 while(info && info->line != line) in open()
661 info = info->next_device; in open()
662 if (sanity_check(info, tty->name, "open")) in open()
663 return -ENODEV; in open()
664 if (info->init_error) { in open()
665 DBGERR(("%s init error=%d\n", info->device_name, info->init_error)); in open()
666 return -ENODEV; in open()
669 tty->driver_data = info; in open()
670 info->port.tty = tty; in open()
672 DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->port.count)); in open()
674 mutex_lock(&info->port.mutex); in open()
675 info->port.low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0; in open()
677 spin_lock_irqsave(&info->netlock, flags); in open()
678 if (info->netcount) { in open()
679 retval = -EBUSY; in open()
680 spin_unlock_irqrestore(&info->netlock, flags); in open()
681 mutex_unlock(&info->port.mutex); in open()
684 info->port.count++; in open()
685 spin_unlock_irqrestore(&info->netlock, flags); in open()
687 if (info->port.count == 1) { in open()
691 mutex_unlock(&info->port.mutex); in open()
695 mutex_unlock(&info->port.mutex); in open()
698 DBGINFO(("%s block_til_ready rc=%d\n", info->device_name, retval)); in open()
706 if (tty->count == 1) in open()
707 info->port.tty = NULL; /* tty layer will release tty struct */ in open()
708 if(info->port.count) in open()
709 info->port.count--; in open()
712 DBGINFO(("%s open rc=%d\n", info->device_name, retval)); in open()
718 struct slgt_info *info = tty->driver_data; in close()
720 if (sanity_check(info, tty->name, "close")) in close()
722 DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count)); in close()
724 if (tty_port_close_start(&info->port, tty, filp) == 0) in close()
727 mutex_lock(&info->port.mutex); in close()
728 if (tty_port_initialized(&info->port)) in close()
729 wait_until_sent(tty, info->timeout); in close()
734 mutex_unlock(&info->port.mutex); in close()
736 tty_port_close_end(&info->port, tty); in close()
737 info->port.tty = NULL; in close()
739 DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count)); in close()
744 struct slgt_info *info = tty->driver_data; in hangup()
747 if (sanity_check(info, tty->name, "hangup")) in hangup()
749 DBGINFO(("%s hangup\n", info->device_name)); in hangup()
753 mutex_lock(&info->port.mutex); in hangup()
756 spin_lock_irqsave(&info->port.lock, flags); in hangup()
757 info->port.count = 0; in hangup()
758 info->port.tty = NULL; in hangup()
759 spin_unlock_irqrestore(&info->port.lock, flags); in hangup()
760 tty_port_set_active(&info->port, 0); in hangup()
761 mutex_unlock(&info->port.mutex); in hangup()
763 wake_up_interruptible(&info->port.open_wait); in hangup()
768 struct slgt_info *info = tty->driver_data; in set_termios()
771 DBGINFO(("%s set_termios\n", tty->driver->name)); in set_termios()
776 if ((old_termios->c_cflag & CBAUD) && !C_BAUD(tty)) { in set_termios()
777 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in set_termios()
778 spin_lock_irqsave(&info->lock,flags); in set_termios()
780 spin_unlock_irqrestore(&info->lock,flags); in set_termios()
784 if (!(old_termios->c_cflag & CBAUD) && C_BAUD(tty)) { in set_termios()
785 info->signals |= SerialSignal_DTR; in set_termios()
787 info->signals |= SerialSignal_RTS; in set_termios()
788 spin_lock_irqsave(&info->lock,flags); in set_termios()
790 spin_unlock_irqrestore(&info->lock,flags); in set_termios()
794 if ((old_termios->c_cflag & CRTSCTS) && !C_CRTSCTS(tty)) { in set_termios()
795 tty->hw_stopped = 0; in set_termios()
806 if (info->params.mode == MGSL_MODE_HDLC) { in update_tx_timer()
808 mod_timer(&info->tx_timer, jiffies + msecs_to_jiffies(timeout)); in update_tx_timer()
816 struct slgt_info *info = tty->driver_data; in write()
819 if (sanity_check(info, tty->name, "write")) in write()
820 return -EIO; in write()
822 DBGINFO(("%s write count=%d\n", info->device_name, count)); in write()
824 if (!info->tx_buf || (count > info->max_frame_size)) in write()
825 return -EIO; in write()
827 if (!count || tty->stopped || tty->hw_stopped) in write()
830 spin_lock_irqsave(&info->lock, flags); in write()
832 if (info->tx_count) { in write()
834 if (!tx_load(info, info->tx_buf, info->tx_count)) in write()
836 info->tx_count = 0; in write()
843 spin_unlock_irqrestore(&info->lock, flags); in write()
844 DBGINFO(("%s write rc=%d\n", info->device_name, ret)); in write()
850 struct slgt_info *info = tty->driver_data; in put_char()
854 if (sanity_check(info, tty->name, "put_char")) in put_char()
856 DBGINFO(("%s put_char(%d)\n", info->device_name, ch)); in put_char()
857 if (!info->tx_buf) in put_char()
859 spin_lock_irqsave(&info->lock,flags); in put_char()
860 if (info->tx_count < info->max_frame_size) { in put_char()
861 info->tx_buf[info->tx_count++] = ch; in put_char()
864 spin_unlock_irqrestore(&info->lock,flags); in put_char()
870 struct slgt_info *info = tty->driver_data; in send_xchar()
873 if (sanity_check(info, tty->name, "send_xchar")) in send_xchar()
875 DBGINFO(("%s send_xchar(%d)\n", info->device_name, ch)); in send_xchar()
876 info->x_char = ch; in send_xchar()
878 spin_lock_irqsave(&info->lock,flags); in send_xchar()
879 if (!info->tx_enabled) in send_xchar()
881 spin_unlock_irqrestore(&info->lock,flags); in send_xchar()
887 struct slgt_info *info = tty->driver_data; in wait_until_sent()
892 if (sanity_check(info, tty->name, "wait_until_sent")) in wait_until_sent()
894 DBGINFO(("%s wait_until_sent entry\n", info->device_name)); in wait_until_sent()
895 if (!tty_port_initialized(&info->port)) in wait_until_sent()
903 * Note: use tight timings here to satisfy the NIST-PCTS. in wait_until_sent()
906 if (info->params.data_rate) { in wait_until_sent()
907 char_time = info->timeout/(32 * 5); in wait_until_sent()
916 while (info->tx_active) { in wait_until_sent()
924 DBGINFO(("%s wait_until_sent exit\n", info->device_name)); in wait_until_sent()
929 struct slgt_info *info = tty->driver_data; in write_room()
932 if (sanity_check(info, tty->name, "write_room")) in write_room()
934 ret = (info->tx_active) ? 0 : HDLC_MAX_FRAME_SIZE; in write_room()
935 DBGINFO(("%s write_room=%d\n", info->device_name, ret)); in write_room()
941 struct slgt_info *info = tty->driver_data; in flush_chars()
944 if (sanity_check(info, tty->name, "flush_chars")) in flush_chars()
946 DBGINFO(("%s flush_chars entry tx_count=%d\n", info->device_name, info->tx_count)); in flush_chars()
948 if (info->tx_count <= 0 || tty->stopped || in flush_chars()
949 tty->hw_stopped || !info->tx_buf) in flush_chars()
952 DBGINFO(("%s flush_chars start transmit\n", info->device_name)); in flush_chars()
954 spin_lock_irqsave(&info->lock,flags); in flush_chars()
955 if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count)) in flush_chars()
956 info->tx_count = 0; in flush_chars()
957 spin_unlock_irqrestore(&info->lock,flags); in flush_chars()
962 struct slgt_info *info = tty->driver_data; in flush_buffer()
965 if (sanity_check(info, tty->name, "flush_buffer")) in flush_buffer()
967 DBGINFO(("%s flush_buffer\n", info->device_name)); in flush_buffer()
969 spin_lock_irqsave(&info->lock, flags); in flush_buffer()
970 info->tx_count = 0; in flush_buffer()
971 spin_unlock_irqrestore(&info->lock, flags); in flush_buffer()
981 struct slgt_info *info = tty->driver_data; in tx_hold()
984 if (sanity_check(info, tty->name, "tx_hold")) in tx_hold()
986 DBGINFO(("%s tx_hold\n", info->device_name)); in tx_hold()
987 spin_lock_irqsave(&info->lock,flags); in tx_hold()
988 if (info->tx_enabled && info->params.mode == MGSL_MODE_ASYNC) in tx_hold()
990 spin_unlock_irqrestore(&info->lock,flags); in tx_hold()
998 struct slgt_info *info = tty->driver_data; in tx_release()
1001 if (sanity_check(info, tty->name, "tx_release")) in tx_release()
1003 DBGINFO(("%s tx_release\n", info->device_name)); in tx_release()
1004 spin_lock_irqsave(&info->lock, flags); in tx_release()
1005 if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count)) in tx_release()
1006 info->tx_count = 0; in tx_release()
1007 spin_unlock_irqrestore(&info->lock, flags); in tx_release()
1024 struct slgt_info *info = tty->driver_data; in ioctl()
1028 if (sanity_check(info, tty->name, "ioctl")) in ioctl()
1029 return -ENODEV; in ioctl()
1030 DBGINFO(("%s ioctl() cmd=%08X\n", info->device_name, cmd)); in ioctl()
1035 return -EIO; in ioctl()
1058 mutex_lock(&info->port.mutex); in ioctl()
1091 ret = -ENOIOCTLCMD; in ioctl()
1093 mutex_unlock(&info->port.mutex); in ioctl()
1101 struct slgt_info *info = tty->driver_data; in get_icount()
1105 spin_lock_irqsave(&info->lock,flags); in get_icount()
1106 cnow = info->icount; in get_icount()
1107 spin_unlock_irqrestore(&info->lock,flags); in get_icount()
1109 icount->cts = cnow.cts; in get_icount()
1110 icount->dsr = cnow.dsr; in get_icount()
1111 icount->rng = cnow.rng; in get_icount()
1112 icount->dcd = cnow.dcd; in get_icount()
1113 icount->rx = cnow.rx; in get_icount()
1114 icount->tx = cnow.tx; in get_icount()
1115 icount->frame = cnow.frame; in get_icount()
1116 icount->overrun = cnow.overrun; in get_icount()
1117 icount->parity = cnow.parity; in get_icount()
1118 icount->brk = cnow.brk; in get_icount()
1119 icount->buf_overrun = cnow.buf_overrun; in get_icount()
1132 DBGINFO(("%s get_params32\n", info->device_name)); in get_params32()
1134 tmp_params.mode = (compat_ulong_t)info->params.mode; in get_params32()
1135 tmp_params.loopback = info->params.loopback; in get_params32()
1136 tmp_params.flags = info->params.flags; in get_params32()
1137 tmp_params.encoding = info->params.encoding; in get_params32()
1138 tmp_params.clock_speed = (compat_ulong_t)info->params.clock_speed; in get_params32()
1139 tmp_params.addr_filter = info->params.addr_filter; in get_params32()
1140 tmp_params.crc_type = info->params.crc_type; in get_params32()
1141 tmp_params.preamble_length = info->params.preamble_length; in get_params32()
1142 tmp_params.preamble = info->params.preamble; in get_params32()
1143 tmp_params.data_rate = (compat_ulong_t)info->params.data_rate; in get_params32()
1144 tmp_params.data_bits = info->params.data_bits; in get_params32()
1145 tmp_params.stop_bits = info->params.stop_bits; in get_params32()
1146 tmp_params.parity = info->params.parity; in get_params32()
1148 return -EFAULT; in get_params32()
1156 DBGINFO(("%s set_params32\n", info->device_name)); in set_params32()
1158 return -EFAULT; in set_params32()
1160 spin_lock(&info->lock); in set_params32()
1162 info->base_clock = tmp_params.clock_speed; in set_params32()
1164 info->params.mode = tmp_params.mode; in set_params32()
1165 info->params.loopback = tmp_params.loopback; in set_params32()
1166 info->params.flags = tmp_params.flags; in set_params32()
1167 info->params.encoding = tmp_params.encoding; in set_params32()
1168 info->params.clock_speed = tmp_params.clock_speed; in set_params32()
1169 info->params.addr_filter = tmp_params.addr_filter; in set_params32()
1170 info->params.crc_type = tmp_params.crc_type; in set_params32()
1171 info->params.preamble_length = tmp_params.preamble_length; in set_params32()
1172 info->params.preamble = tmp_params.preamble; in set_params32()
1173 info->params.data_rate = tmp_params.data_rate; in set_params32()
1174 info->params.data_bits = tmp_params.data_bits; in set_params32()
1175 info->params.stop_bits = tmp_params.stop_bits; in set_params32()
1176 info->params.parity = tmp_params.parity; in set_params32()
1178 spin_unlock(&info->lock); in set_params32()
1188 struct slgt_info *info = tty->driver_data; in slgt_compat_ioctl()
1191 if (sanity_check(info, tty->name, "compat_ioctl")) in slgt_compat_ioctl()
1192 return -ENODEV; in slgt_compat_ioctl()
1193 DBGINFO(("%s compat_ioctl() cmd=%08X\n", info->device_name, cmd)); in slgt_compat_ioctl()
1220 DBGINFO(("%s compat_ioctl() cmd=%08X rc=%d\n", info->device_name, cmd, rc)); in slgt_compat_ioctl()
1236 info->device_name, info->phys_reg_addr, in line_info()
1237 info->irq_level, info->max_frame_size); in line_info()
1240 spin_lock_irqsave(&info->lock,flags); in line_info()
1242 spin_unlock_irqrestore(&info->lock,flags); in line_info()
1246 if (info->signals & SerialSignal_RTS) in line_info()
1248 if (info->signals & SerialSignal_CTS) in line_info()
1250 if (info->signals & SerialSignal_DTR) in line_info()
1252 if (info->signals & SerialSignal_DSR) in line_info()
1254 if (info->signals & SerialSignal_DCD) in line_info()
1256 if (info->signals & SerialSignal_RI) in line_info()
1259 if (info->params.mode != MGSL_MODE_ASYNC) { in line_info()
1261 info->icount.txok, info->icount.rxok); in line_info()
1262 if (info->icount.txunder) in line_info()
1263 seq_printf(m, " txunder:%d", info->icount.txunder); in line_info()
1264 if (info->icount.txabort) in line_info()
1265 seq_printf(m, " txabort:%d", info->icount.txabort); in line_info()
1266 if (info->icount.rxshort) in line_info()
1267 seq_printf(m, " rxshort:%d", info->icount.rxshort); in line_info()
1268 if (info->icount.rxlong) in line_info()
1269 seq_printf(m, " rxlong:%d", info->icount.rxlong); in line_info()
1270 if (info->icount.rxover) in line_info()
1271 seq_printf(m, " rxover:%d", info->icount.rxover); in line_info()
1272 if (info->icount.rxcrc) in line_info()
1273 seq_printf(m, " rxcrc:%d", info->icount.rxcrc); in line_info()
1276 info->icount.tx, info->icount.rx); in line_info()
1277 if (info->icount.frame) in line_info()
1278 seq_printf(m, " fe:%d", info->icount.frame); in line_info()
1279 if (info->icount.parity) in line_info()
1280 seq_printf(m, " pe:%d", info->icount.parity); in line_info()
1281 if (info->icount.brk) in line_info()
1282 seq_printf(m, " brk:%d", info->icount.brk); in line_info()
1283 if (info->icount.overrun) in line_info()
1284 seq_printf(m, " oe:%d", info->icount.overrun); in line_info()
1291 info->tx_active,info->bh_requested,info->bh_running, in line_info()
1292 info->pending_bh); in line_info()
1306 info = info->next_device; in synclink_gt_proc_show()
1316 struct slgt_info *info = tty->driver_data; in chars_in_buffer()
1318 if (sanity_check(info, tty->name, "chars_in_buffer")) in chars_in_buffer()
1321 DBGINFO(("%s chars_in_buffer()=%d\n", info->device_name, count)); in chars_in_buffer()
1330 struct slgt_info *info = tty->driver_data; in throttle()
1333 if (sanity_check(info, tty->name, "throttle")) in throttle()
1335 DBGINFO(("%s throttle\n", info->device_name)); in throttle()
1339 spin_lock_irqsave(&info->lock,flags); in throttle()
1340 info->signals &= ~SerialSignal_RTS; in throttle()
1342 spin_unlock_irqrestore(&info->lock,flags); in throttle()
1351 struct slgt_info *info = tty->driver_data; in unthrottle()
1354 if (sanity_check(info, tty->name, "unthrottle")) in unthrottle()
1356 DBGINFO(("%s unthrottle\n", info->device_name)); in unthrottle()
1358 if (info->x_char) in unthrottle()
1359 info->x_char = 0; in unthrottle()
1364 spin_lock_irqsave(&info->lock,flags); in unthrottle()
1365 info->signals |= SerialSignal_RTS; in unthrottle()
1367 spin_unlock_irqrestore(&info->lock,flags); in unthrottle()
1373 * break_state -1=set break condition, 0=clear
1377 struct slgt_info *info = tty->driver_data; in set_break()
1381 if (sanity_check(info, tty->name, "set_break")) in set_break()
1382 return -EINVAL; in set_break()
1383 DBGINFO(("%s set_break(%d)\n", info->device_name, break_state)); in set_break()
1385 spin_lock_irqsave(&info->lock,flags); in set_break()
1387 if (break_state == -1) in set_break()
1392 spin_unlock_irqrestore(&info->lock,flags); in set_break()
1416 if (info->port.count) in hdlcdev_attach()
1417 return -EBUSY; in hdlcdev_attach()
1419 DBGINFO(("%s hdlcdev_attach\n", info->device_name)); in hdlcdev_attach()
1428 default: return -EINVAL; in hdlcdev_attach()
1436 default: return -EINVAL; in hdlcdev_attach()
1439 info->params.encoding = new_encoding; in hdlcdev_attach()
1440 info->params.crc_type = new_crctype; in hdlcdev_attach()
1443 if (info->netcount) in hdlcdev_attach()
1461 DBGINFO(("%s hdlc_xmit\n", dev->name)); in hdlcdev_xmit()
1463 if (!skb->len) in hdlcdev_xmit()
1470 dev->stats.tx_packets++; in hdlcdev_xmit()
1471 dev->stats.tx_bytes += skb->len; in hdlcdev_xmit()
1476 spin_lock_irqsave(&info->lock, flags); in hdlcdev_xmit()
1477 tx_load(info, skb->data, skb->len); in hdlcdev_xmit()
1478 spin_unlock_irqrestore(&info->lock, flags); in hdlcdev_xmit()
1501 return -EBUSY; in hdlcdev_open()
1503 DBGINFO(("%s hdlcdev_open\n", dev->name)); in hdlcdev_open()
1511 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_open()
1512 if (info->port.count != 0 || info->netcount != 0) { in hdlcdev_open()
1513 DBGINFO(("%s hdlc_open busy\n", dev->name)); in hdlcdev_open()
1514 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1515 return -EBUSY; in hdlcdev_open()
1517 info->netcount=1; in hdlcdev_open()
1518 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1522 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_open()
1523 info->netcount=0; in hdlcdev_open()
1524 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1529 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in hdlcdev_open()
1536 /* inform generic HDLC layer of current DCD status */ in hdlcdev_open()
1537 spin_lock_irqsave(&info->lock, flags); in hdlcdev_open()
1539 spin_unlock_irqrestore(&info->lock, flags); in hdlcdev_open()
1540 if (info->signals & SerialSignal_DCD) in hdlcdev_open()
1560 DBGINFO(("%s hdlcdev_close\n", dev->name)); in hdlcdev_close()
1569 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_close()
1570 info->netcount=0; in hdlcdev_close()
1571 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_close()
1590 sync_serial_settings __user *line = ifr->ifr_settings.ifs_ifsu.sync; in hdlcdev_ioctl()
1594 DBGINFO(("%s hdlcdev_ioctl\n", dev->name)); in hdlcdev_ioctl()
1597 if (info->port.count) in hdlcdev_ioctl()
1598 return -EBUSY; in hdlcdev_ioctl()
1605 switch(ifr->ifr_settings.type) { in hdlcdev_ioctl()
1608 ifr->ifr_settings.type = IF_IFACE_SYNC_SERIAL; in hdlcdev_ioctl()
1609 if (ifr->ifr_settings.size < size) { in hdlcdev_ioctl()
1610 ifr->ifr_settings.size = size; /* data size wanted */ in hdlcdev_ioctl()
1611 return -ENOBUFS; in hdlcdev_ioctl()
1614 flags = info->params.flags & (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL | in hdlcdev_ioctl()
1627 new_line.clock_rate = info->params.clock_speed; in hdlcdev_ioctl()
1628 new_line.loopback = info->params.loopback ? 1:0; in hdlcdev_ioctl()
1631 return -EFAULT; in hdlcdev_ioctl()
1637 return -EPERM; in hdlcdev_ioctl()
1639 return -EFAULT; in hdlcdev_ioctl()
1647 case CLOCK_DEFAULT: flags = info->params.flags & in hdlcdev_ioctl()
1652 default: return -EINVAL; in hdlcdev_ioctl()
1656 return -EINVAL; in hdlcdev_ioctl()
1658 info->params.flags &= ~(HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL | in hdlcdev_ioctl()
1662 info->params.flags |= flags; in hdlcdev_ioctl()
1664 info->params.loopback = new_line.loopback; in hdlcdev_ioctl()
1667 info->params.clock_speed = new_line.clock_rate; in hdlcdev_ioctl()
1669 info->params.clock_speed = 0; in hdlcdev_ioctl()
1672 if (info->netcount) in hdlcdev_ioctl()
1691 DBGINFO(("%s hdlcdev_tx_timeout\n", dev->name)); in hdlcdev_tx_timeout()
1693 dev->stats.tx_errors++; in hdlcdev_tx_timeout()
1694 dev->stats.tx_aborted_errors++; in hdlcdev_tx_timeout()
1696 spin_lock_irqsave(&info->lock,flags); in hdlcdev_tx_timeout()
1698 spin_unlock_irqrestore(&info->lock,flags); in hdlcdev_tx_timeout()
1711 if (netif_queue_stopped(info->netdev)) in hdlcdev_tx_done()
1712 netif_wake_queue(info->netdev); in hdlcdev_tx_done()
1726 struct net_device *dev = info->netdev; in hdlcdev_rx()
1728 DBGINFO(("%s hdlcdev_rx\n", dev->name)); in hdlcdev_rx()
1731 DBGERR(("%s: can't alloc skb, drop packet\n", dev->name)); in hdlcdev_rx()
1732 dev->stats.rx_dropped++; in hdlcdev_rx()
1738 skb->protocol = hdlc_type_trans(skb, dev); in hdlcdev_rx()
1740 dev->stats.rx_packets++; in hdlcdev_rx()
1741 dev->stats.rx_bytes += size; in hdlcdev_rx()
1772 printk(KERN_ERR "%s hdlc device alloc failure\n", info->device_name); in hdlcdev_init()
1773 return -ENOMEM; in hdlcdev_init()
1777 dev->mem_start = info->phys_reg_addr; in hdlcdev_init()
1778 dev->mem_end = info->phys_reg_addr + SLGT_REG_SIZE - 1; in hdlcdev_init()
1779 dev->irq = info->irq_level; in hdlcdev_init()
1782 dev->netdev_ops = &hdlcdev_ops; in hdlcdev_init()
1783 dev->watchdog_timeo = 10 * HZ; in hdlcdev_init()
1784 dev->tx_queue_len = 50; in hdlcdev_init()
1788 hdlc->attach = hdlcdev_attach; in hdlcdev_init()
1789 hdlc->xmit = hdlcdev_xmit; in hdlcdev_init()
1799 info->netdev = dev; in hdlcdev_init()
1811 unregister_hdlc_device(info->netdev); in hdlcdev_exit()
1812 free_netdev(info->netdev); in hdlcdev_exit()
1813 info->netdev = NULL; in hdlcdev_exit()
1823 struct mgsl_icount *icount = &info->icount; in rx_async()
1827 struct slgt_desc *bufs = info->rbufs; in rx_async()
1833 start = end = info->rbuf_current; in rx_async()
1836 count = desc_count(bufs[end]) - info->rbuf_index; in rx_async()
1837 p = bufs[end].buf + info->rbuf_index; in rx_async()
1839 DBGISR(("%s rx_async count=%d\n", info->device_name, count)); in rx_async()
1844 icount->rx++; in rx_async()
1851 icount->parity++; in rx_async()
1853 icount->frame++; in rx_async()
1855 if (status & info->ignore_status_mask) in rx_async()
1862 tty_insert_flip_char(&info->port, ch, stat); in rx_async()
1868 info->rbuf_index += i; in rx_async()
1869 mod_timer(&info->rx_timer, jiffies + 1); in rx_async()
1873 info->rbuf_index = 0; in rx_async()
1876 if (++end == info->rbuf_count) in rx_async()
1885 tty_flip_buffer_push(&info->port); in rx_async()
1896 spin_lock_irqsave(&info->lock,flags); in bh_action()
1898 if (info->pending_bh & BH_RECEIVE) { in bh_action()
1899 info->pending_bh &= ~BH_RECEIVE; in bh_action()
1901 } else if (info->pending_bh & BH_TRANSMIT) { in bh_action()
1902 info->pending_bh &= ~BH_TRANSMIT; in bh_action()
1904 } else if (info->pending_bh & BH_STATUS) { in bh_action()
1905 info->pending_bh &= ~BH_STATUS; in bh_action()
1909 info->bh_running = false; in bh_action()
1910 info->bh_requested = false; in bh_action()
1914 spin_unlock_irqrestore(&info->lock,flags); in bh_action()
1927 info->bh_running = true; in bh_handler()
1932 DBGBH(("%s bh receive\n", info->device_name)); in bh_handler()
1933 switch(info->params.mode) { in bh_handler()
1948 if (info->rx_restart) in bh_handler()
1955 DBGBH(("%s bh status\n", info->device_name)); in bh_handler()
1956 info->ri_chkcount = 0; in bh_handler()
1957 info->dsr_chkcount = 0; in bh_handler()
1958 info->dcd_chkcount = 0; in bh_handler()
1959 info->cts_chkcount = 0; in bh_handler()
1962 DBGBH(("%s unknown action\n", info->device_name)); in bh_handler()
1966 DBGBH(("%s bh_handler exit\n", info->device_name)); in bh_handler()
1971 struct tty_struct *tty = info->port.tty; in bh_transmit()
1973 DBGBH(("%s bh_transmit\n", info->device_name)); in bh_transmit()
1981 info->signals |= SerialSignal_DSR; in dsr_change()
1982 info->input_signal_events.dsr_up++; in dsr_change()
1984 info->signals &= ~SerialSignal_DSR; in dsr_change()
1985 info->input_signal_events.dsr_down++; in dsr_change()
1987 DBGISR(("dsr_change %s signals=%04X\n", info->device_name, info->signals)); in dsr_change()
1988 if ((info->dsr_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in dsr_change()
1992 info->icount.dsr++; in dsr_change()
1993 wake_up_interruptible(&info->status_event_wait_q); in dsr_change()
1994 wake_up_interruptible(&info->event_wait_q); in dsr_change()
1995 info->pending_bh |= BH_STATUS; in dsr_change()
2001 info->signals |= SerialSignal_CTS; in cts_change()
2002 info->input_signal_events.cts_up++; in cts_change()
2004 info->signals &= ~SerialSignal_CTS; in cts_change()
2005 info->input_signal_events.cts_down++; in cts_change()
2007 DBGISR(("cts_change %s signals=%04X\n", info->device_name, info->signals)); in cts_change()
2008 if ((info->cts_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in cts_change()
2012 info->icount.cts++; in cts_change()
2013 wake_up_interruptible(&info->status_event_wait_q); in cts_change()
2014 wake_up_interruptible(&info->event_wait_q); in cts_change()
2015 info->pending_bh |= BH_STATUS; in cts_change()
2017 if (tty_port_cts_enabled(&info->port)) { in cts_change()
2018 if (info->port.tty) { in cts_change()
2019 if (info->port.tty->hw_stopped) { in cts_change()
2020 if (info->signals & SerialSignal_CTS) { in cts_change()
2021 info->port.tty->hw_stopped = 0; in cts_change()
2022 info->pending_bh |= BH_TRANSMIT; in cts_change()
2026 if (!(info->signals & SerialSignal_CTS)) in cts_change()
2027 info->port.tty->hw_stopped = 1; in cts_change()
2036 info->signals |= SerialSignal_DCD; in dcd_change()
2037 info->input_signal_events.dcd_up++; in dcd_change()
2039 info->signals &= ~SerialSignal_DCD; in dcd_change()
2040 info->input_signal_events.dcd_down++; in dcd_change()
2042 DBGISR(("dcd_change %s signals=%04X\n", info->device_name, info->signals)); in dcd_change()
2043 if ((info->dcd_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in dcd_change()
2047 info->icount.dcd++; in dcd_change()
2049 if (info->netcount) { in dcd_change()
2050 if (info->signals & SerialSignal_DCD) in dcd_change()
2051 netif_carrier_on(info->netdev); in dcd_change()
2053 netif_carrier_off(info->netdev); in dcd_change()
2056 wake_up_interruptible(&info->status_event_wait_q); in dcd_change()
2057 wake_up_interruptible(&info->event_wait_q); in dcd_change()
2058 info->pending_bh |= BH_STATUS; in dcd_change()
2060 if (tty_port_check_carrier(&info->port)) { in dcd_change()
2061 if (info->signals & SerialSignal_DCD) in dcd_change()
2062 wake_up_interruptible(&info->port.open_wait); in dcd_change()
2064 if (info->port.tty) in dcd_change()
2065 tty_hangup(info->port.tty); in dcd_change()
2073 info->signals |= SerialSignal_RI; in ri_change()
2074 info->input_signal_events.ri_up++; in ri_change()
2076 info->signals &= ~SerialSignal_RI; in ri_change()
2077 info->input_signal_events.ri_down++; in ri_change()
2079 DBGISR(("ri_change %s signals=%04X\n", info->device_name, info->signals)); in ri_change()
2080 if ((info->ri_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in ri_change()
2084 info->icount.rng++; in ri_change()
2085 wake_up_interruptible(&info->status_event_wait_q); in ri_change()
2086 wake_up_interruptible(&info->event_wait_q); in ri_change()
2087 info->pending_bh |= BH_STATUS; in ri_change()
2092 unsigned int count = info->rbuf_fill_count; in isr_rxdata()
2093 unsigned int i = info->rbuf_fill_index; in isr_rxdata()
2098 DBGISR(("isr_rxdata %s RDR=%04X\n", info->device_name, reg)); in isr_rxdata()
2099 if (desc_complete(info->rbufs[i])) { in isr_rxdata()
2102 info->rx_restart = 1; in isr_rxdata()
2105 info->rbufs[i].buf[count++] = (unsigned char)reg; in isr_rxdata()
2107 if (info->params.mode == MGSL_MODE_ASYNC) in isr_rxdata()
2108 info->rbufs[i].buf[count++] = (unsigned char)(reg >> 8); in isr_rxdata()
2109 if (count == info->rbuf_fill_level || (reg & BIT10)) { in isr_rxdata()
2111 set_desc_count(info->rbufs[i], count); in isr_rxdata()
2112 set_desc_status(info->rbufs[i], BIT15 | (reg >> 8)); in isr_rxdata()
2113 info->rbuf_fill_count = count = 0; in isr_rxdata()
2114 if (++i == info->rbuf_count) in isr_rxdata()
2116 info->pending_bh |= BH_RECEIVE; in isr_rxdata()
2120 info->rbuf_fill_index = i; in isr_rxdata()
2121 info->rbuf_fill_count = count; in isr_rxdata()
2128 DBGISR(("%s isr_serial status=%04X\n", info->device_name, status)); in isr_serial()
2132 info->irq_occurred = true; in isr_serial()
2134 if (info->params.mode == MGSL_MODE_ASYNC) { in isr_serial()
2136 if (info->tx_active) in isr_serial()
2139 if (info->rx_pio && (status & IRQ_RXDATA)) in isr_serial()
2142 info->icount.brk++; in isr_serial()
2144 if (info->port.tty) { in isr_serial()
2145 if (!(status & info->ignore_status_mask)) { in isr_serial()
2146 if (info->read_status_mask & MASK_BREAK) { in isr_serial()
2147 tty_insert_flip_char(&info->port, 0, TTY_BREAK); in isr_serial()
2148 if (info->port.flags & ASYNC_SAK) in isr_serial()
2149 do_SAK(info->port.tty); in isr_serial()
2157 if (info->rx_pio && (status & IRQ_RXDATA)) in isr_serial()
2161 info->icount.rxidle++; in isr_serial()
2163 info->icount.exithunt++; in isr_serial()
2164 wake_up_interruptible(&info->event_wait_q); in isr_serial()
2185 DBGISR(("%s isr_rdma status=%08x\n", info->device_name, status)); in isr_rdma()
2201 DBGISR(("%s isr_rdma rx_restart=1\n", info->device_name)); in isr_rdma()
2202 info->rx_restart = true; in isr_rdma()
2204 info->pending_bh |= BH_RECEIVE; in isr_rdma()
2211 DBGISR(("%s isr_tdma status=%08x\n", info->device_name, status)); in isr_tdma()
2228 info->pending_bh |= BH_TRANSMIT; in isr_tdma()
2235 * if there are unsent buffers then info->tbuf_start
2240 unsigned int i = info->tbuf_current; in unsent_tbufs()
2250 i--; in unsent_tbufs()
2252 i = info->tbuf_count - 1; in unsent_tbufs()
2253 if (!desc_count(info->tbufs[i])) in unsent_tbufs()
2255 info->tbuf_start = i; in unsent_tbufs()
2257 } while (i != info->tbuf_current); in unsent_tbufs()
2264 DBGISR(("%s txeom status=%04x\n", info->device_name, status)); in isr_txeom()
2274 if (info->tx_active) { in isr_txeom()
2275 if (info->params.mode != MGSL_MODE_ASYNC) { in isr_txeom()
2277 info->icount.txunder++; in isr_txeom()
2279 info->icount.txok++; in isr_txeom()
2287 info->tx_active = false; in isr_txeom()
2289 del_timer(&info->tx_timer); in isr_txeom()
2291 if (info->params.mode != MGSL_MODE_ASYNC && info->drop_rts_on_tx_done) { in isr_txeom()
2292 info->signals &= ~SerialSignal_RTS; in isr_txeom()
2293 info->drop_rts_on_tx_done = false; in isr_txeom()
2298 if (info->netcount) in isr_txeom()
2303 if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) { in isr_txeom()
2307 info->pending_bh |= BH_TRANSMIT; in isr_txeom()
2317 for (w = info->gpio_wait_q, prev = NULL ; w != NULL ; w = w->next) { in isr_gpio()
2318 if (w->data & changed) { in isr_gpio()
2319 w->data = state; in isr_gpio()
2320 wake_up_interruptible(&w->q); in isr_gpio()
2322 prev->next = w->next; in isr_gpio()
2324 info->gpio_wait_q = w->next; in isr_gpio()
2341 DBGISR(("slgt_interrupt irq=%d entry\n", info->irq_level)); in slgt_interrupt()
2344 DBGISR(("%s gsr=%08x\n", info->device_name, gsr)); in slgt_interrupt()
2345 info->irq_occurred = true; in slgt_interrupt()
2346 for(i=0; i < info->port_count ; i++) { in slgt_interrupt()
2347 if (info->port_array[i] == NULL) in slgt_interrupt()
2349 spin_lock(&info->port_array[i]->lock); in slgt_interrupt()
2351 isr_serial(info->port_array[i]); in slgt_interrupt()
2353 isr_rdma(info->port_array[i]); in slgt_interrupt()
2355 isr_tdma(info->port_array[i]); in slgt_interrupt()
2356 spin_unlock(&info->port_array[i]->lock); in slgt_interrupt()
2360 if (info->gpio_present) { in slgt_interrupt()
2363 spin_lock(&info->lock); in slgt_interrupt()
2365 DBGISR(("%s iosr=%08x\n", info->device_name, changed)); in slgt_interrupt()
2370 for (i=0 ; i < info->port_count ; i++) { in slgt_interrupt()
2371 if (info->port_array[i] != NULL) in slgt_interrupt()
2372 isr_gpio(info->port_array[i], changed, state); in slgt_interrupt()
2375 spin_unlock(&info->lock); in slgt_interrupt()
2378 for(i=0; i < info->port_count ; i++) { in slgt_interrupt()
2379 struct slgt_info *port = info->port_array[i]; in slgt_interrupt()
2382 spin_lock(&port->lock); in slgt_interrupt()
2383 if ((port->port.count || port->netcount) && in slgt_interrupt()
2384 port->pending_bh && !port->bh_running && in slgt_interrupt()
2385 !port->bh_requested) { in slgt_interrupt()
2386 DBGISR(("%s bh queued\n", port->device_name)); in slgt_interrupt()
2387 schedule_work(&port->task); in slgt_interrupt()
2388 port->bh_requested = true; in slgt_interrupt()
2390 spin_unlock(&port->lock); in slgt_interrupt()
2393 DBGISR(("slgt_interrupt irq=%d exit\n", info->irq_level)); in slgt_interrupt()
2399 DBGINFO(("%s startup\n", info->device_name)); in startup()
2401 if (tty_port_initialized(&info->port)) in startup()
2404 if (!info->tx_buf) { in startup()
2405 info->tx_buf = kmalloc(info->max_frame_size, GFP_KERNEL); in startup()
2406 if (!info->tx_buf) { in startup()
2407 DBGERR(("%s can't allocate tx buffer\n", info->device_name)); in startup()
2408 return -ENOMEM; in startup()
2412 info->pending_bh = 0; in startup()
2414 memset(&info->icount, 0, sizeof(info->icount)); in startup()
2419 if (info->port.tty) in startup()
2420 clear_bit(TTY_IO_ERROR, &info->port.tty->flags); in startup()
2422 tty_port_set_initialized(&info->port, 1); in startup()
2434 if (!tty_port_initialized(&info->port)) in shutdown()
2437 DBGINFO(("%s shutdown\n", info->device_name)); in shutdown()
2441 wake_up_interruptible(&info->status_event_wait_q); in shutdown()
2442 wake_up_interruptible(&info->event_wait_q); in shutdown()
2444 del_timer_sync(&info->tx_timer); in shutdown()
2445 del_timer_sync(&info->rx_timer); in shutdown()
2447 kfree(info->tx_buf); in shutdown()
2448 info->tx_buf = NULL; in shutdown()
2450 spin_lock_irqsave(&info->lock,flags); in shutdown()
2457 if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) { in shutdown()
2458 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in shutdown()
2462 flush_cond_wait(&info->gpio_wait_q); in shutdown()
2464 spin_unlock_irqrestore(&info->lock,flags); in shutdown()
2466 if (info->port.tty) in shutdown()
2467 set_bit(TTY_IO_ERROR, &info->port.tty->flags); in shutdown()
2469 tty_port_set_initialized(&info->port, 0); in shutdown()
2476 spin_lock_irqsave(&info->lock,flags); in program_hw()
2481 if (info->params.mode != MGSL_MODE_ASYNC || in program_hw()
2482 info->netcount) in program_hw()
2489 info->dcd_chkcount = 0; in program_hw()
2490 info->cts_chkcount = 0; in program_hw()
2491 info->ri_chkcount = 0; in program_hw()
2492 info->dsr_chkcount = 0; in program_hw()
2497 if (info->netcount || in program_hw()
2498 (info->port.tty && info->port.tty->termios.c_cflag & CREAD)) in program_hw()
2501 spin_unlock_irqrestore(&info->lock,flags); in program_hw()
2512 if (!info->port.tty) in change_params()
2514 DBGINFO(("%s change_params\n", info->device_name)); in change_params()
2516 cflag = info->port.tty->termios.c_cflag; in change_params()
2521 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in change_params()
2523 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in change_params()
2528 case CS5: info->params.data_bits = 5; break; in change_params()
2529 case CS6: info->params.data_bits = 6; break; in change_params()
2530 case CS7: info->params.data_bits = 7; break; in change_params()
2531 case CS8: info->params.data_bits = 8; break; in change_params()
2532 default: info->params.data_bits = 7; break; in change_params()
2535 info->params.stop_bits = (cflag & CSTOPB) ? 2 : 1; in change_params()
2538 info->params.parity = (cflag & PARODD) ? ASYNC_PARITY_ODD : ASYNC_PARITY_EVEN; in change_params()
2540 info->params.parity = ASYNC_PARITY_NONE; in change_params()
2545 bits_per_char = info->params.data_bits + in change_params()
2546 info->params.stop_bits + 1; in change_params()
2548 info->params.data_rate = tty_get_baud_rate(info->port.tty); in change_params()
2550 if (info->params.data_rate) { in change_params()
2551 info->timeout = (32*HZ*bits_per_char) / in change_params()
2552 info->params.data_rate; in change_params()
2554 info->timeout += HZ/50; /* Add .02 seconds of slop */ in change_params()
2556 tty_port_set_cts_flow(&info->port, cflag & CRTSCTS); in change_params()
2557 tty_port_set_check_carrier(&info->port, ~cflag & CLOCAL); in change_params()
2561 info->read_status_mask = IRQ_RXOVER; in change_params()
2562 if (I_INPCK(info->port.tty)) in change_params()
2563 info->read_status_mask |= MASK_PARITY | MASK_FRAMING; in change_params()
2564 if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty)) in change_params()
2565 info->read_status_mask |= MASK_BREAK; in change_params()
2566 if (I_IGNPAR(info->port.tty)) in change_params()
2567 info->ignore_status_mask |= MASK_PARITY | MASK_FRAMING; in change_params()
2568 if (I_IGNBRK(info->port.tty)) { in change_params()
2569 info->ignore_status_mask |= MASK_BREAK; in change_params()
2573 if (I_IGNPAR(info->port.tty)) in change_params()
2574 info->ignore_status_mask |= MASK_OVERRUN; in change_params()
2582 DBGINFO(("%s get_stats\n", info->device_name)); in get_stats()
2584 memset(&info->icount, 0, sizeof(info->icount)); in get_stats()
2586 if (copy_to_user(user_icount, &info->icount, sizeof(struct mgsl_icount))) in get_stats()
2587 return -EFAULT; in get_stats()
2594 DBGINFO(("%s get_params\n", info->device_name)); in get_params()
2595 if (copy_to_user(user_params, &info->params, sizeof(MGSL_PARAMS))) in get_params()
2596 return -EFAULT; in get_params()
2605 DBGINFO(("%s set_params\n", info->device_name)); in set_params()
2607 return -EFAULT; in set_params()
2609 spin_lock_irqsave(&info->lock, flags); in set_params()
2611 info->base_clock = tmp_params.clock_speed; in set_params()
2613 memcpy(&info->params, &tmp_params, sizeof(MGSL_PARAMS)); in set_params()
2614 spin_unlock_irqrestore(&info->lock, flags); in set_params()
2623 DBGINFO(("%s get_txidle=%d\n", info->device_name, info->idle_mode)); in get_txidle()
2624 if (put_user(info->idle_mode, idle_mode)) in get_txidle()
2625 return -EFAULT; in get_txidle()
2632 DBGINFO(("%s set_txidle(%d)\n", info->device_name, idle_mode)); in set_txidle()
2633 spin_lock_irqsave(&info->lock,flags); in set_txidle()
2634 info->idle_mode = idle_mode; in set_txidle()
2635 if (info->params.mode != MGSL_MODE_ASYNC) in set_txidle()
2637 spin_unlock_irqrestore(&info->lock,flags); in set_txidle()
2644 DBGINFO(("%s tx_enable(%d)\n", info->device_name, enable)); in tx_enable()
2645 spin_lock_irqsave(&info->lock,flags); in tx_enable()
2647 if (!info->tx_enabled) in tx_enable()
2650 if (info->tx_enabled) in tx_enable()
2653 spin_unlock_irqrestore(&info->lock,flags); in tx_enable()
2663 DBGINFO(("%s tx_abort\n", info->device_name)); in tx_abort()
2664 spin_lock_irqsave(&info->lock,flags); in tx_abort()
2666 spin_unlock_irqrestore(&info->lock,flags); in tx_abort()
2674 DBGINFO(("%s rx_enable(%08x)\n", info->device_name, enable)); in rx_enable()
2675 spin_lock_irqsave(&info->lock,flags); in rx_enable()
2684 spin_unlock_irqrestore(&info->lock, flags); in rx_enable()
2685 return -EINVAL; in rx_enable()
2687 info->rbuf_fill_level = rbuf_fill_level; in rx_enable()
2689 info->rx_pio = 1; /* PIO mode */ in rx_enable()
2691 info->rx_pio = 0; /* DMA mode */ in rx_enable()
2703 if (!info->rx_enabled) in rx_enable()
2710 if (info->rx_enabled) in rx_enable()
2713 spin_unlock_irqrestore(&info->lock,flags); in rx_enable()
2732 return -EFAULT; in wait_mgsl_event()
2734 DBGINFO(("%s wait_mgsl_event(%d)\n", info->device_name, mask)); in wait_mgsl_event()
2736 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2740 s = info->signals; in wait_mgsl_event()
2748 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2753 cprev = info->icount; in wait_mgsl_event()
2754 oldsigs = info->input_signal_events; in wait_mgsl_event()
2764 add_wait_queue(&info->event_wait_q, &wait); in wait_mgsl_event()
2766 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2771 rc = -ERESTARTSYS; in wait_mgsl_event()
2776 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2777 cnow = info->icount; in wait_mgsl_event()
2778 newsigs = info->input_signal_events; in wait_mgsl_event()
2780 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2793 rc = -EIO; in wait_mgsl_event()
2815 remove_wait_queue(&info->event_wait_q, &wait); in wait_mgsl_event()
2820 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2821 if (!waitqueue_active(&info->event_wait_q)) { in wait_mgsl_event()
2826 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2836 DBGINFO(("%s get_interface=%x\n", info->device_name, info->if_mode)); in get_interface()
2837 if (put_user(info->if_mode, if_mode)) in get_interface()
2838 return -EFAULT; in get_interface()
2847 DBGINFO(("%s set_interface=%x)\n", info->device_name, if_mode)); in set_interface()
2848 spin_lock_irqsave(&info->lock,flags); in set_interface()
2849 info->if_mode = if_mode; in set_interface()
2855 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in set_interface()
2861 spin_unlock_irqrestore(&info->lock,flags); in set_interface()
2867 DBGINFO(("%s get_xsync=%x\n", info->device_name, info->xsync)); in get_xsync()
2868 if (put_user(info->xsync, xsync)) in get_xsync()
2869 return -EFAULT; in get_xsync()
2883 DBGINFO(("%s set_xsync=%x)\n", info->device_name, xsync)); in set_xsync()
2884 spin_lock_irqsave(&info->lock, flags); in set_xsync()
2885 info->xsync = xsync; in set_xsync()
2887 spin_unlock_irqrestore(&info->lock, flags); in set_xsync()
2893 DBGINFO(("%s get_xctrl=%x\n", info->device_name, info->xctrl)); in get_xctrl()
2894 if (put_user(info->xctrl, xctrl)) in get_xctrl()
2895 return -EFAULT; in get_xctrl()
2920 DBGINFO(("%s set_xctrl=%x)\n", info->device_name, xctrl)); in set_xctrl()
2921 spin_lock_irqsave(&info->lock, flags); in set_xctrl()
2922 info->xctrl = xctrl; in set_xctrl()
2924 spin_unlock_irqrestore(&info->lock, flags); in set_xctrl()
2943 if (!info->gpio_present) in set_gpio()
2944 return -EINVAL; in set_gpio()
2946 return -EFAULT; in set_gpio()
2948 info->device_name, gpio.state, gpio.smask, in set_gpio()
2951 spin_lock_irqsave(&info->port_array[0]->lock, flags); in set_gpio()
2964 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in set_gpio()
2975 if (!info->gpio_present) in get_gpio()
2976 return -EINVAL; in get_gpio()
2982 return -EFAULT; in get_gpio()
2984 info->device_name, gpio.state, gpio.dir)); in get_gpio()
2993 init_waitqueue_head(&w->q); in init_cond_wait()
2994 init_waitqueue_entry(&w->wait, current); in init_cond_wait()
2995 w->data = data; in init_cond_wait()
3001 add_wait_queue(&w->q, &w->wait); in add_cond_wait()
3002 w->next = *head; in add_cond_wait()
3009 remove_wait_queue(&cw->q, &cw->wait); in remove_cond_wait()
3011 for (w = *head, prev = NULL ; w != NULL ; prev = w, w = w->next) { in remove_cond_wait()
3014 prev->next = w->next; in remove_cond_wait()
3016 *head = w->next; in remove_cond_wait()
3025 wake_up_interruptible(&(*head)->q); in flush_cond_wait()
3026 *head = (*head)->next; in flush_cond_wait()
3034 * state - bit indicates target pin state
3035 * smask - set bit indicates watched pin
3038 * state. When 0 (no error) is returned, user_gpio->state is set to the
3054 if (!info->gpio_present) in wait_gpio()
3055 return -EINVAL; in wait_gpio()
3057 return -EFAULT; in wait_gpio()
3059 info->device_name, gpio.state, gpio.smask)); in wait_gpio()
3062 return -EINVAL; in wait_gpio()
3065 spin_lock_irqsave(&info->port_array[0]->lock, flags); in wait_gpio()
3076 add_cond_wait(&info->gpio_wait_q, &wait); in wait_gpio()
3077 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in wait_gpio()
3080 rc = -ERESTARTSYS; in wait_gpio()
3083 spin_lock_irqsave(&info->port_array[0]->lock, flags); in wait_gpio()
3084 remove_cond_wait(&info->gpio_wait_q, &wait); in wait_gpio()
3088 if (info->gpio_wait_q == NULL) in wait_gpio()
3090 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in wait_gpio()
3093 rc = -EFAULT; in wait_gpio()
3105 spin_lock_irqsave(&info->lock,flags); in modem_input_wait()
3106 cprev = info->icount; in modem_input_wait()
3107 add_wait_queue(&info->status_event_wait_q, &wait); in modem_input_wait()
3109 spin_unlock_irqrestore(&info->lock,flags); in modem_input_wait()
3114 rc = -ERESTARTSYS; in modem_input_wait()
3119 spin_lock_irqsave(&info->lock,flags); in modem_input_wait()
3120 cnow = info->icount; in modem_input_wait()
3122 spin_unlock_irqrestore(&info->lock,flags); in modem_input_wait()
3126 cnow.dcd == cprev.dcd && cnow.cts == cprev.cts) { in modem_input_wait()
3127 rc = -EIO; in modem_input_wait()
3134 (arg & TIOCM_CD && cnow.dcd != cprev.dcd) || in modem_input_wait()
3142 remove_wait_queue(&info->status_event_wait_q, &wait); in modem_input_wait()
3152 struct slgt_info *info = tty->driver_data; in tiocmget()
3156 spin_lock_irqsave(&info->lock,flags); in tiocmget()
3158 spin_unlock_irqrestore(&info->lock,flags); in tiocmget()
3160 result = ((info->signals & SerialSignal_RTS) ? TIOCM_RTS:0) + in tiocmget()
3161 ((info->signals & SerialSignal_DTR) ? TIOCM_DTR:0) + in tiocmget()
3162 ((info->signals & SerialSignal_DCD) ? TIOCM_CAR:0) + in tiocmget()
3163 ((info->signals & SerialSignal_RI) ? TIOCM_RNG:0) + in tiocmget()
3164 ((info->signals & SerialSignal_DSR) ? TIOCM_DSR:0) + in tiocmget()
3165 ((info->signals & SerialSignal_CTS) ? TIOCM_CTS:0); in tiocmget()
3167 DBGINFO(("%s tiocmget value=%08X\n", info->device_name, result)); in tiocmget()
3181 struct slgt_info *info = tty->driver_data; in tiocmset()
3184 DBGINFO(("%s tiocmset(%x,%x)\n", info->device_name, set, clear)); in tiocmset()
3187 info->signals |= SerialSignal_RTS; in tiocmset()
3189 info->signals |= SerialSignal_DTR; in tiocmset()
3191 info->signals &= ~SerialSignal_RTS; in tiocmset()
3193 info->signals &= ~SerialSignal_DTR; in tiocmset()
3195 spin_lock_irqsave(&info->lock,flags); in tiocmset()
3197 spin_unlock_irqrestore(&info->lock,flags); in tiocmset()
3206 spin_lock_irqsave(&info->lock,flags); in carrier_raised()
3208 spin_unlock_irqrestore(&info->lock,flags); in carrier_raised()
3209 return (info->signals & SerialSignal_DCD) ? 1 : 0; in carrier_raised()
3217 spin_lock_irqsave(&info->lock,flags); in dtr_rts()
3219 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in dtr_rts()
3221 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in dtr_rts()
3223 spin_unlock_irqrestore(&info->lock,flags); in dtr_rts()
3238 struct tty_port *port = &info->port; in block_til_ready()
3240 DBGINFO(("%s block_til_ready\n", tty->driver->name)); in block_til_ready()
3242 if (filp->f_flags & O_NONBLOCK || tty_io_error(tty)) { in block_til_ready()
3253 * this loop, port->count is dropped by one, so that in block_til_ready()
3259 add_wait_queue(&port->open_wait, &wait); in block_til_ready()
3261 spin_lock_irqsave(&info->lock, flags); in block_til_ready()
3262 port->count--; in block_til_ready()
3263 spin_unlock_irqrestore(&info->lock, flags); in block_til_ready()
3264 port->blocked_open++; in block_til_ready()
3273 retval = (port->flags & ASYNC_HUP_NOTIFY) ? in block_til_ready()
3274 -EAGAIN : -ERESTARTSYS; in block_til_ready()
3283 retval = -ERESTARTSYS; in block_til_ready()
3287 DBGINFO(("%s block_til_ready wait\n", tty->driver->name)); in block_til_ready()
3294 remove_wait_queue(&port->open_wait, &wait); in block_til_ready()
3297 port->count++; in block_til_ready()
3298 port->blocked_open--; in block_til_ready()
3303 DBGINFO(("%s block_til_ready ready, rc=%d\n", tty->driver->name, retval)); in block_til_ready()
3311 * 32-bit CRC and status byte when configured to do so
3315 info->tmp_rbuf = kmalloc(info->max_frame_size + 5, GFP_KERNEL); in alloc_tmp_rbuf()
3316 if (info->tmp_rbuf == NULL) in alloc_tmp_rbuf()
3317 return -ENOMEM; in alloc_tmp_rbuf()
3319 info->flag_buf = kzalloc(info->max_frame_size + 5, GFP_KERNEL); in alloc_tmp_rbuf()
3320 if (!info->flag_buf) { in alloc_tmp_rbuf()
3321 kfree(info->tmp_rbuf); in alloc_tmp_rbuf()
3322 info->tmp_rbuf = NULL; in alloc_tmp_rbuf()
3323 return -ENOMEM; in alloc_tmp_rbuf()
3330 kfree(info->tmp_rbuf); in free_tmp_rbuf()
3331 info->tmp_rbuf = NULL; in free_tmp_rbuf()
3332 kfree(info->flag_buf); in free_tmp_rbuf()
3333 info->flag_buf = NULL; in free_tmp_rbuf()
3345 info->bufs = pci_zalloc_consistent(info->pdev, DESC_LIST_SIZE, in alloc_desc()
3346 &info->bufs_dma_addr); in alloc_desc()
3347 if (info->bufs == NULL) in alloc_desc()
3348 return -ENOMEM; in alloc_desc()
3350 info->rbufs = (struct slgt_desc*)info->bufs; in alloc_desc()
3351 info->tbufs = ((struct slgt_desc*)info->bufs) + info->rbuf_count; in alloc_desc()
3353 pbufs = (unsigned int)info->bufs_dma_addr; in alloc_desc()
3359 for (i=0; i < info->rbuf_count; i++) { in alloc_desc()
3361 info->rbufs[i].pdesc = pbufs + (i * sizeof(struct slgt_desc)); in alloc_desc()
3364 if (i == info->rbuf_count - 1) in alloc_desc()
3365 info->rbufs[i].next = cpu_to_le32(pbufs); in alloc_desc()
3367 info->rbufs[i].next = cpu_to_le32(pbufs + ((i+1) * sizeof(struct slgt_desc))); in alloc_desc()
3368 set_desc_count(info->rbufs[i], DMABUFSIZE); in alloc_desc()
3371 for (i=0; i < info->tbuf_count; i++) { in alloc_desc()
3373 info->tbufs[i].pdesc = pbufs + ((info->rbuf_count + i) * sizeof(struct slgt_desc)); in alloc_desc()
3376 if (i == info->tbuf_count - 1) in alloc_desc()
3377 info->tbufs[i].next = cpu_to_le32(pbufs + info->rbuf_count * sizeof(struct slgt_desc)); in alloc_desc()
3379 …info->tbufs[i].next = cpu_to_le32(pbufs + ((info->rbuf_count + i + 1) * sizeof(struct slgt_desc))); in alloc_desc()
3387 if (info->bufs != NULL) { in free_desc()
3388 pci_free_consistent(info->pdev, DESC_LIST_SIZE, info->bufs, info->bufs_dma_addr); in free_desc()
3389 info->bufs = NULL; in free_desc()
3390 info->rbufs = NULL; in free_desc()
3391 info->tbufs = NULL; in free_desc()
3399 if ((bufs[i].buf = pci_alloc_consistent(info->pdev, DMABUFSIZE, &bufs[i].buf_dma_addr)) == NULL) in alloc_bufs()
3400 return -ENOMEM; in alloc_bufs()
3412 pci_free_consistent(info->pdev, DMABUFSIZE, bufs[i].buf, bufs[i].buf_dma_addr); in free_bufs()
3419 info->rbuf_count = 32; in alloc_dma_bufs()
3420 info->tbuf_count = 32; in alloc_dma_bufs()
3423 alloc_bufs(info, info->rbufs, info->rbuf_count) < 0 || in alloc_dma_bufs()
3424 alloc_bufs(info, info->tbufs, info->tbuf_count) < 0 || in alloc_dma_bufs()
3426 DBGERR(("%s DMA buffer alloc fail\n", info->device_name)); in alloc_dma_bufs()
3427 return -ENOMEM; in alloc_dma_bufs()
3435 if (info->bufs) { in free_dma_bufs()
3436 free_bufs(info, info->rbufs, info->rbuf_count); in free_dma_bufs()
3437 free_bufs(info, info->tbufs, info->tbuf_count); in free_dma_bufs()
3445 if (request_mem_region(info->phys_reg_addr, SLGT_REG_SIZE, "synclink_gt") == NULL) { in claim_resources()
3447 info->device_name, info->phys_reg_addr)); in claim_resources()
3448 info->init_error = DiagStatus_AddressConflict; in claim_resources()
3452 info->reg_addr_requested = true; in claim_resources()
3454 info->reg_addr = ioremap_nocache(info->phys_reg_addr, SLGT_REG_SIZE); in claim_resources()
3455 if (!info->reg_addr) { in claim_resources()
3457 info->device_name, info->phys_reg_addr)); in claim_resources()
3458 info->init_error = DiagStatus_CantAssignPciResources; in claim_resources()
3465 return -ENODEV; in claim_resources()
3470 if (info->irq_requested) { in release_resources()
3471 free_irq(info->irq_level, info); in release_resources()
3472 info->irq_requested = false; in release_resources()
3475 if (info->reg_addr_requested) { in release_resources()
3476 release_mem_region(info->phys_reg_addr, SLGT_REG_SIZE); in release_resources()
3477 info->reg_addr_requested = false; in release_resources()
3480 if (info->reg_addr) { in release_resources()
3481 iounmap(info->reg_addr); in release_resources()
3482 info->reg_addr = NULL; in release_resources()
3493 info->next_device = NULL; in add_device()
3494 info->line = slgt_device_count; in add_device()
3495 sprintf(info->device_name, "%s%d", tty_dev_prefix, info->line); in add_device()
3497 if (info->line < MAX_DEVICES) { in add_device()
3498 if (maxframe[info->line]) in add_device()
3499 info->max_frame_size = maxframe[info->line]; in add_device()
3508 while(current_dev->next_device) in add_device()
3509 current_dev = current_dev->next_device; in add_device()
3510 current_dev->next_device = info; in add_device()
3513 if (info->max_frame_size < 4096) in add_device()
3514 info->max_frame_size = 4096; in add_device()
3515 else if (info->max_frame_size > 65535) in add_device()
3516 info->max_frame_size = 65535; in add_device()
3518 switch(info->pdev->device) { in add_device()
3530 info->params.mode = MGSL_MODE_ASYNC; in add_device()
3536 devstr, info->device_name, info->phys_reg_addr, in add_device()
3537 info->irq_level, info->max_frame_size); in add_device()
3562 tty_port_init(&info->port); in alloc_dev()
3563 info->port.ops = &slgt_port_ops; in alloc_dev()
3564 info->magic = MGSL_MAGIC; in alloc_dev()
3565 INIT_WORK(&info->task, bh_handler); in alloc_dev()
3566 info->max_frame_size = 4096; in alloc_dev()
3567 info->base_clock = 14745600; in alloc_dev()
3568 info->rbuf_fill_level = DMABUFSIZE; in alloc_dev()
3569 info->port.close_delay = 5*HZ/10; in alloc_dev()
3570 info->port.closing_wait = 30*HZ; in alloc_dev()
3571 init_waitqueue_head(&info->status_event_wait_q); in alloc_dev()
3572 init_waitqueue_head(&info->event_wait_q); in alloc_dev()
3573 spin_lock_init(&info->netlock); in alloc_dev()
3574 memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS)); in alloc_dev()
3575 info->idle_mode = HDLC_TXIDLE_FLAGS; in alloc_dev()
3576 info->adapter_num = adapter_num; in alloc_dev()
3577 info->port_num = port_num; in alloc_dev()
3579 timer_setup(&info->tx_timer, tx_timeout, 0); in alloc_dev()
3580 timer_setup(&info->rx_timer, rx_timeout, 0); in alloc_dev()
3583 info->pdev = pdev; in alloc_dev()
3584 info->irq_level = pdev->irq; in alloc_dev()
3585 info->phys_reg_addr = pci_resource_start(pdev,0); in alloc_dev()
3587 info->bus_type = MGSL_BUS_TYPE_PCI; in alloc_dev()
3588 info->irq_flags = IRQF_SHARED; in alloc_dev()
3590 info->init_error = -1; /* assume error, set to 0 on successful init */ in alloc_dev()
3602 if (pdev->device == SYNCLINK_GT2_DEVICE_ID) in device_init()
3604 else if (pdev->device == SYNCLINK_GT4_DEVICE_ID) in device_init()
3611 for (--i; i >= 0; --i) { in device_init()
3612 tty_port_destroy(&port_array[i]->port); in device_init()
3621 memcpy(port_array[i]->port_array, port_array, sizeof(port_array)); in device_init()
3623 port_array[i]->port_count = port_count; in device_init()
3624 spin_lock_init(&port_array[i]->lock); in device_init()
3634 port_array[i]->irq_level = port_array[0]->irq_level; in device_init()
3635 port_array[i]->reg_addr = port_array[0]->reg_addr; in device_init()
3639 if (request_irq(port_array[0]->irq_level, in device_init()
3641 port_array[0]->irq_flags, in device_init()
3642 port_array[0]->device_name, in device_init()
3645 port_array[0]->device_name, in device_init()
3646 port_array[0]->irq_level)); in device_init()
3648 port_array[0]->irq_requested = true; in device_init()
3651 port_array[i]->init_error = port_array[0]->init_error; in device_init()
3652 port_array[i]->gpio_present = port_array[0]->gpio_present; in device_init()
3659 tty_port_register_device(&info->port, serial_driver, info->line, in device_init()
3660 &info->pdev->dev); in device_init()
3669 return -EIO; in init_one()
3715 for (info=slgt_device_list ; info != NULL ; info=info->next_device) in slgt_cleanup()
3716 tty_unregister_device(serial_driver, info->line); in slgt_cleanup()
3727 info = info->next_device; in slgt_cleanup()
3738 if (info->port_num == 0) in slgt_cleanup()
3741 info = info->next_device; in slgt_cleanup()
3742 tty_port_destroy(&tmp->port); in slgt_cleanup()
3762 return -ENOMEM; in slgt_init()
3767 serial_driver->driver_name = slgt_driver_name; in slgt_init()
3768 serial_driver->name = tty_dev_prefix; in slgt_init()
3769 serial_driver->major = ttymajor; in slgt_init()
3770 serial_driver->minor_start = 64; in slgt_init()
3771 serial_driver->type = TTY_DRIVER_TYPE_SERIAL; in slgt_init()
3772 serial_driver->subtype = SERIAL_TYPE_NORMAL; in slgt_init()
3773 serial_driver->init_termios = tty_std_termios; in slgt_init()
3774 serial_driver->init_termios.c_cflag = in slgt_init()
3776 serial_driver->init_termios.c_ispeed = 9600; in slgt_init()
3777 serial_driver->init_termios.c_ospeed = 9600; in slgt_init()
3778 serial_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV; in slgt_init()
3788 driver_name, serial_driver->major); in slgt_init()
3820 unsigned long reg_addr = ((unsigned long)info->reg_addr) + addr; \
3822 reg_addr += (info->port_num) * 32; \
3824 reg_addr += (info->port_num) * 16;
3898 if (info->params.mode != MGSL_MODE_ASYNC) { in enable_loopback()
3910 if (info->params.clock_speed) in enable_loopback()
3911 set_rate(info, info->params.clock_speed); in enable_loopback()
3923 unsigned int osc = info->base_clock; in set_rate()
3925 /* div = osc/rate - 1 in set_rate()
3934 div--; in set_rate()
3955 info->rx_enabled = false; in rx_stop()
3956 info->rx_restart = false; in rx_stop()
3976 if (info->rx_pio) { in rx_start()
3980 if (info->params.mode == MGSL_MODE_ASYNC) { in rx_start()
3988 wr_reg32(info, RDDAR, info->rbufs[0].pdesc); in rx_start()
3990 if (info->params.mode != MGSL_MODE_ASYNC) { in rx_start()
4004 info->rx_restart = false; in rx_start()
4005 info->rx_enabled = true; in rx_start()
4010 if (!info->tx_enabled) { in tx_start()
4013 info->tx_enabled = true; in tx_start()
4016 if (desc_count(info->tbufs[info->tbuf_start])) { in tx_start()
4017 info->drop_rts_on_tx_done = false; in tx_start()
4019 if (info->params.mode != MGSL_MODE_ASYNC) { in tx_start()
4020 if (info->params.flags & HDLC_FLAG_AUTO_RTS) { in tx_start()
4022 if (!(info->signals & SerialSignal_RTS)) { in tx_start()
4023 info->signals |= SerialSignal_RTS; in tx_start()
4025 info->drop_rts_on_tx_done = true; in tx_start()
4040 wr_reg32(info, TDDAR, info->tbufs[info->tbuf_start].pdesc); in tx_start()
4042 info->tx_active = true; in tx_start()
4050 del_timer(&info->tx_timer); in tx_stop()
4065 info->tx_enabled = false; in tx_stop()
4066 info->tx_active = false; in tx_stop()
4071 if (!info->reg_addr) in reset_port()
4077 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in reset_port()
4086 for (i=0; i < info->port_count; ++i) { in reset_adapter()
4087 if (info->port_array[i]) in reset_adapter()
4088 reset_port(info->port_array[i]); in reset_adapter()
4116 * 00 auto-CTS enable in async_mode()
4120 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in async_mode()
4123 if (info->params.parity != ASYNC_PARITY_NONE) { in async_mode()
4125 if (info->params.parity == ASYNC_PARITY_ODD) in async_mode()
4129 switch (info->params.data_bits) in async_mode()
4136 if (info->params.stop_bits != 1) in async_mode()
4139 if (info->params.flags & HDLC_FLAG_AUTO_CTS) in async_mode()
4159 * 00 auto-DCD enable in async_mode()
4163 if (info->params.parity != ASYNC_PARITY_NONE) { in async_mode()
4165 if (info->params.parity == ASYNC_PARITY_ODD) in async_mode()
4169 switch (info->params.data_bits) in async_mode()
4176 if (info->params.flags & HDLC_FLAG_AUTO_DCD) in async_mode()
4206 * 05 DCD IRQ enable in async_mode()
4209 * 02 1=txd->rxd internal loopback enable in async_mode()
4215 if ((rd_reg32(info, JCR) & BIT8) && info->params.data_rate && in async_mode()
4216 ((info->base_clock < (info->params.data_rate * 16)) || in async_mode()
4217 (info->base_clock % (info->params.data_rate * 16)))) { in async_mode()
4220 set_rate(info, info->params.data_rate * 8); in async_mode()
4223 set_rate(info, info->params.data_rate * 16); in async_mode()
4229 if (info->params.loopback) in async_mode()
4259 * 00 auto-CTS enable in sync_mode()
4263 switch(info->params.mode) { in sync_mode()
4271 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in sync_mode()
4274 switch(info->params.encoding) in sync_mode()
4285 switch (info->params.crc_type & HDLC_CRC_MASK) in sync_mode()
4291 if (info->params.preamble != HDLC_PREAMBLE_PATTERN_NONE) in sync_mode()
4294 switch (info->params.preamble_length) in sync_mode()
4301 if (info->params.flags & HDLC_FLAG_AUTO_CTS) in sync_mode()
4308 switch (info->params.preamble) in sync_mode()
4334 * 00 auto-DCD enable in sync_mode()
4338 switch(info->params.mode) { in sync_mode()
4347 switch(info->params.encoding) in sync_mode()
4358 switch (info->params.crc_type & HDLC_CRC_MASK) in sync_mode()
4364 if (info->params.flags & HDLC_FLAG_AUTO_DCD) in sync_mode()
4378 if (info->params.flags & HDLC_FLAG_TXC_BRG) in sync_mode()
4383 if (info->params.flags & HDLC_FLAG_RXC_DPLL) in sync_mode()
4388 else if (info->params.flags & HDLC_FLAG_TXC_DPLL) in sync_mode()
4390 else if (info->params.flags & HDLC_FLAG_TXC_RXCPIN) in sync_mode()
4393 if (info->params.flags & HDLC_FLAG_RXC_BRG) in sync_mode()
4395 else if (info->params.flags & HDLC_FLAG_RXC_DPLL) in sync_mode()
4397 else if (info->params.flags & HDLC_FLAG_RXC_TXCPIN) in sync_mode()
4400 if (info->params.clock_speed) in sync_mode()
4405 if (info->params.flags & (HDLC_FLAG_TXC_DPLL + HDLC_FLAG_RXC_DPLL)) in sync_mode()
4408 switch(info->params.encoding) in sync_mode()
4421 set_rate(info, info->params.clock_speed * 16); in sync_mode()
4424 set_rate(info, info->params.clock_speed); in sync_mode()
4442 * 05 DCD IRQ enable in sync_mode()
4445 * 02 1=txd->rxd internal loopback enable in sync_mode()
4451 if (info->params.loopback) in sync_mode()
4467 if (info->idle_mode & HDLC_TXIDLE_CUSTOM_16) { in tx_set_idle()
4471 wr_reg8(info, TPR, (unsigned char)((info->idle_mode >> 8) & 0xff)); in tx_set_idle()
4478 if (info->idle_mode & (HDLC_TXIDLE_CUSTOM_8 | HDLC_TXIDLE_CUSTOM_16)) { in tx_set_idle()
4480 val = (unsigned char)(info->idle_mode & 0xff); in tx_set_idle()
4483 switch(info->idle_mode) in tx_set_idle()
4505 info->signals &= SerialSignal_RTS | SerialSignal_DTR; in get_signals()
4508 info->signals |= SerialSignal_DSR; in get_signals()
4510 info->signals |= SerialSignal_CTS; in get_signals()
4512 info->signals |= SerialSignal_DCD; in get_signals()
4514 info->signals |= SerialSignal_RI; in get_signals()
4533 switch(info->if_mode & MGSL_INTERFACE_MASK) in msc_set_vcr()
4546 if (info->if_mode & MGSL_INTERFACE_MSB_FIRST) in msc_set_vcr()
4548 if (info->signals & SerialSignal_DTR) in msc_set_vcr()
4550 if (info->signals & SerialSignal_RTS) in msc_set_vcr()
4552 if (info->if_mode & MGSL_INTERFACE_LL) in msc_set_vcr()
4554 if (info->if_mode & MGSL_INTERFACE_RL) in msc_set_vcr()
4565 if (info->signals & SerialSignal_DTR) in set_signals()
4569 if (info->signals & SerialSignal_RTS) in set_signals()
4585 info->rbufs[i].status = 0; in free_rbufs()
4586 set_desc_count(info->rbufs[i], info->rbuf_fill_level); in free_rbufs()
4589 if (++i == info->rbuf_count) in free_rbufs()
4592 info->rbuf_current = i; in free_rbufs()
4600 free_rbufs(info, 0, info->rbuf_count - 1); in reset_rbufs()
4601 info->rbuf_fill_index = 0; in reset_rbufs()
4602 info->rbuf_fill_count = 0; in reset_rbufs()
4616 struct tty_struct *tty = info->port.tty; in rx_get_frame()
4620 switch (info->params.crc_type & HDLC_CRC_MASK) { in rx_get_frame()
4629 start = end = info->rbuf_current; in rx_get_frame()
4632 if (!desc_complete(info->rbufs[end])) in rx_get_frame()
4635 if (framesize == 0 && info->params.addr_filter != 0xff) in rx_get_frame()
4636 addr_field = info->rbufs[end].buf[0]; in rx_get_frame()
4638 framesize += desc_count(info->rbufs[end]); in rx_get_frame()
4640 if (desc_eof(info->rbufs[end])) in rx_get_frame()
4643 if (++end == info->rbuf_count) in rx_get_frame()
4646 if (end == info->rbuf_current) { in rx_get_frame()
4647 if (info->rx_enabled){ in rx_get_frame()
4648 spin_lock_irqsave(&info->lock,flags); in rx_get_frame()
4650 spin_unlock_irqrestore(&info->lock,flags); in rx_get_frame()
4665 status = desc_status(info->rbufs[end]); in rx_get_frame()
4668 if ((info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_NONE) in rx_get_frame()
4672 (addr_field != 0xff && addr_field != info->params.addr_filter)) { in rx_get_frame()
4678 info->icount.rxshort++; in rx_get_frame()
4681 info->icount.rxcrc++; in rx_get_frame()
4682 if (!(info->params.crc_type & HDLC_CRC_RETURN_EX)) in rx_get_frame()
4688 info->netdev->stats.rx_errors++; in rx_get_frame()
4689 info->netdev->stats.rx_frame_errors++; in rx_get_frame()
4694 info->device_name, status, framesize)); in rx_get_frame()
4695 DBGDATA(info, info->rbufs[start].buf, min_t(int, framesize, info->rbuf_fill_level), "rx"); in rx_get_frame()
4698 if (!(info->params.crc_type & HDLC_CRC_RETURN_EX)) { in rx_get_frame()
4699 framesize -= crc_size; in rx_get_frame()
4703 if (framesize > info->max_frame_size + crc_size) in rx_get_frame()
4704 info->icount.rxlong++; in rx_get_frame()
4709 unsigned char *p = info->tmp_rbuf; in rx_get_frame()
4710 info->tmp_rbuf_count = framesize; in rx_get_frame()
4712 info->icount.rxok++; in rx_get_frame()
4715 int partial_count = min_t(int, copy_count, info->rbuf_fill_level); in rx_get_frame()
4716 memcpy(p, info->rbufs[i].buf, partial_count); in rx_get_frame()
4718 copy_count -= partial_count; in rx_get_frame()
4719 if (++i == info->rbuf_count) in rx_get_frame()
4723 if (info->params.crc_type & HDLC_CRC_RETURN_EX) { in rx_get_frame()
4729 if (info->netcount) in rx_get_frame()
4730 hdlcdev_rx(info,info->tmp_rbuf, framesize); in rx_get_frame()
4733 ldisc_receive_buf(tty, info->tmp_rbuf, info->flag_buf, framesize); in rx_get_frame()
4749 unsigned int i = info->rbuf_current; in rx_get_buf()
4752 if (!desc_complete(info->rbufs[i])) in rx_get_buf()
4754 count = desc_count(info->rbufs[i]); in rx_get_buf()
4755 switch(info->params.mode) { in rx_get_buf()
4760 if (desc_residue(info->rbufs[i])) in rx_get_buf()
4761 count--; in rx_get_buf()
4764 DBGDATA(info, info->rbufs[i].buf, count, "rx"); in rx_get_buf()
4767 ldisc_receive_buf(info->port.tty, info->rbufs[i].buf, in rx_get_buf()
4768 info->flag_buf, count); in rx_get_buf()
4776 info->tbuf_current = 0; in reset_tbufs()
4777 for (i=0 ; i < info->tbuf_count ; i++) { in reset_tbufs()
4778 info->tbufs[i].status = 0; in reset_tbufs()
4779 info->tbufs[i].count = 0; in reset_tbufs()
4789 unsigned int i = info->tbuf_current; in free_tbuf_count()
4793 if (desc_count(info->tbufs[i])) in free_tbuf_count()
4796 if (++i == info->tbuf_count) in free_tbuf_count()
4798 } while (i != info->tbuf_current); in free_tbuf_count()
4802 --count; in free_tbuf_count()
4814 unsigned int i = info->tbuf_current; in tbuf_bytes()
4831 count = desc_count(info->tbufs[i]); in tbuf_bytes()
4835 active_buf_count = info->tbufs[i].buf_count; in tbuf_bytes()
4836 if (++i == info->tbuf_count) in tbuf_bytes()
4838 } while (i != info->tbuf_current); in tbuf_bytes()
4851 if (info->tx_active) in tbuf_bytes()
4884 info->tbuf_start = i = info->tbuf_current; in tx_load()
4887 d = &info->tbufs[i]; in tx_load()
4890 memcpy(d->buf, buf, count); in tx_load()
4892 size -= count; in tx_load()
4899 if ((!size && info->params.mode == MGSL_MODE_HDLC) || in tx_load()
4900 info->params.mode == MGSL_MODE_RAW) in tx_load()
4906 if (i != info->tbuf_start) in tx_load()
4908 d->buf_count = count; in tx_load()
4910 if (++i == info->tbuf_count) in tx_load()
4914 info->tbuf_current = i; in tx_load()
4917 d = &info->tbufs[info->tbuf_start]; in tx_load()
4918 set_desc_count(*d, d->buf_count); in tx_load()
4921 if (!info->tx_active) in tx_load()
4941 rc = -ENODEV; in register_test()
4945 info->gpio_present = (rd_reg32(info, JCR) & BIT5) ? 1 : 0; in register_test()
4946 info->init_error = rc ? 0 : DiagStatus_AddressFailure; in register_test()
4954 struct tty_struct *oldtty = info->port.tty; in irq_test()
4955 u32 speed = info->params.data_rate; in irq_test()
4957 info->params.data_rate = 921600; in irq_test()
4958 info->port.tty = NULL; in irq_test()
4960 spin_lock_irqsave(&info->lock, flags); in irq_test()
4972 info->init_error = DiagStatus_IrqFailure; in irq_test()
4973 info->irq_occurred = false; in irq_test()
4975 spin_unlock_irqrestore(&info->lock, flags); in irq_test()
4978 while(timeout-- && !info->irq_occurred) in irq_test()
4981 spin_lock_irqsave(&info->lock,flags); in irq_test()
4983 spin_unlock_irqrestore(&info->lock,flags); in irq_test()
4985 info->params.data_rate = speed; in irq_test()
4986 info->port.tty = oldtty; in irq_test()
4988 info->init_error = info->irq_occurred ? 0 : DiagStatus_IrqFailure; in irq_test()
4989 return info->irq_occurred ? 0 : -ENODEV; in irq_test()
4997 if (desc_complete(info->rbufs[0])) { in loopback_test_rx()
4998 count = desc_count(info->rbufs[0]); in loopback_test_rx()
4999 src = info->rbufs[0].buf; in loopback_test_rx()
5000 dest = info->tmp_rbuf; in loopback_test_rx()
5002 for( ; count ; count-=2, src+=2) { in loopback_test_rx()
5007 info->tmp_rbuf_count++; in loopback_test_rx()
5010 DBGDATA(info, info->tmp_rbuf, info->tmp_rbuf_count, "rx"); in loopback_test_rx()
5023 int rc = -ENODEV; in loopback_test()
5026 struct tty_struct *oldtty = info->port.tty; in loopback_test()
5029 memcpy(¶ms, &info->params, sizeof(params)); in loopback_test()
5031 info->params.mode = MGSL_MODE_ASYNC; in loopback_test()
5032 info->params.data_rate = 921600; in loopback_test()
5033 info->params.loopback = 1; in loopback_test()
5034 info->port.tty = NULL; in loopback_test()
5040 info->tmp_rbuf_count = 0; in loopback_test()
5041 memset(info->tmp_rbuf, 0, TESTFRAMESIZE); in loopback_test()
5044 spin_lock_irqsave(&info->lock,flags); in loopback_test()
5048 spin_unlock_irqrestore(&info->lock, flags); in loopback_test()
5051 for (timeout = 100; timeout; --timeout) { in loopback_test()
5060 if (!rc && (info->tmp_rbuf_count != count || in loopback_test()
5061 memcmp(buf, info->tmp_rbuf, count))) { in loopback_test()
5062 rc = -ENODEV; in loopback_test()
5065 spin_lock_irqsave(&info->lock,flags); in loopback_test()
5067 spin_unlock_irqrestore(&info->lock,flags); in loopback_test()
5069 memcpy(&info->params, ¶ms, sizeof(info->params)); in loopback_test()
5070 info->port.tty = oldtty; in loopback_test()
5072 info->init_error = rc ? DiagStatus_DmaFailure : 0; in loopback_test()
5078 DBGINFO(("testing %s\n", info->device_name)); in adapter_test()
5081 info->device_name, info->phys_reg_addr); in adapter_test()
5084 info->device_name, info->irq_level); in adapter_test()
5086 printk("loopback test failure %s\n", info->device_name); in adapter_test()
5088 return info->init_error; in adapter_test()
5099 DBGINFO(("%s tx_timeout\n", info->device_name)); in tx_timeout()
5100 if(info->tx_active && info->params.mode == MGSL_MODE_HDLC) { in tx_timeout()
5101 info->icount.txtimeout++; in tx_timeout()
5103 spin_lock_irqsave(&info->lock,flags); in tx_timeout()
5105 spin_unlock_irqrestore(&info->lock,flags); in tx_timeout()
5108 if (info->netcount) in tx_timeout()
5123 DBGINFO(("%s rx_timeout\n", info->device_name)); in rx_timeout()
5124 spin_lock_irqsave(&info->lock, flags); in rx_timeout()
5125 info->pending_bh |= BH_RECEIVE; in rx_timeout()
5126 spin_unlock_irqrestore(&info->lock, flags); in rx_timeout()
5127 bh_handler(&info->task); in rx_timeout()