Lines Matching refs:info
42 #define DBGDATA(info, buf, size, label) if (debug_level >= DEBUG_LEVEL_DATA) trace_block((info), (b… argument
167 static void hdlcdev_tx_done(struct slgt_info *info);
168 static void hdlcdev_rx(struct slgt_info *info, char *buf, int size);
169 static int hdlcdev_init(struct slgt_info *info);
170 static void hdlcdev_exit(struct slgt_info *info);
427 #define slgt_irq_on(info, mask) \ argument
428 wr_reg16((info), SCR, (unsigned short)(rd_reg16((info), SCR) | (mask)))
429 #define slgt_irq_off(info, mask) \ argument
430 wr_reg16((info), SCR, (unsigned short)(rd_reg16((info), SCR) & ~(mask)))
432 static __u8 rd_reg8(struct slgt_info *info, unsigned int addr);
433 static void wr_reg8(struct slgt_info *info, unsigned int addr, __u8 value);
434 static __u16 rd_reg16(struct slgt_info *info, unsigned int addr);
435 static void wr_reg16(struct slgt_info *info, unsigned int addr, __u16 value);
436 static __u32 rd_reg32(struct slgt_info *info, unsigned int addr);
437 static void wr_reg32(struct slgt_info *info, unsigned int addr, __u32 value);
439 static void msc_set_vcr(struct slgt_info *info);
441 static int startup(struct slgt_info *info);
442 static int block_til_ready(struct tty_struct *tty, struct file * filp,struct slgt_info *info);
443 static void shutdown(struct slgt_info *info);
444 static void program_hw(struct slgt_info *info);
445 static void change_params(struct slgt_info *info);
447 static int register_test(struct slgt_info *info);
448 static int irq_test(struct slgt_info *info);
449 static int loopback_test(struct slgt_info *info);
450 static int adapter_test(struct slgt_info *info);
452 static void reset_adapter(struct slgt_info *info);
453 static void reset_port(struct slgt_info *info);
454 static void async_mode(struct slgt_info *info);
455 static void sync_mode(struct slgt_info *info);
457 static void rx_stop(struct slgt_info *info);
458 static void rx_start(struct slgt_info *info);
459 static void reset_rbufs(struct slgt_info *info);
460 static void free_rbufs(struct slgt_info *info, unsigned int first, unsigned int last);
461 static void rdma_reset(struct slgt_info *info);
462 static bool rx_get_frame(struct slgt_info *info);
463 static bool rx_get_buf(struct slgt_info *info);
465 static void tx_start(struct slgt_info *info);
466 static void tx_stop(struct slgt_info *info);
467 static void tx_set_idle(struct slgt_info *info);
468 static unsigned int free_tbuf_count(struct slgt_info *info);
469 static unsigned int tbuf_bytes(struct slgt_info *info);
470 static void reset_tbufs(struct slgt_info *info);
471 static void tdma_reset(struct slgt_info *info);
472 static bool tx_load(struct slgt_info *info, const char *buf, unsigned int count);
474 static void get_signals(struct slgt_info *info);
475 static void set_signals(struct slgt_info *info);
476 static void enable_loopback(struct slgt_info *info);
477 static void set_rate(struct slgt_info *info, u32 data_rate);
479 static int bh_action(struct slgt_info *info);
481 static void bh_transmit(struct slgt_info *info);
482 static void isr_serial(struct slgt_info *info);
483 static void isr_rdma(struct slgt_info *info);
484 static void isr_txeom(struct slgt_info *info, unsigned short status);
485 static void isr_tdma(struct slgt_info *info);
487 static int alloc_dma_bufs(struct slgt_info *info);
488 static void free_dma_bufs(struct slgt_info *info);
489 static int alloc_desc(struct slgt_info *info);
490 static void free_desc(struct slgt_info *info);
491 static int alloc_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count);
492 static void free_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count);
494 static int alloc_tmp_rbuf(struct slgt_info *info);
495 static void free_tmp_rbuf(struct slgt_info *info);
503 static int get_stats(struct slgt_info *info, struct mgsl_icount __user *user_icount);
504 static int get_params(struct slgt_info *info, MGSL_PARAMS __user *params);
505 static int set_params(struct slgt_info *info, MGSL_PARAMS __user *params);
506 static int get_txidle(struct slgt_info *info, int __user *idle_mode);
507 static int set_txidle(struct slgt_info *info, int idle_mode);
508 static int tx_enable(struct slgt_info *info, int enable);
509 static int tx_abort(struct slgt_info *info);
510 static int rx_enable(struct slgt_info *info, int enable);
511 static int modem_input_wait(struct slgt_info *info,int arg);
512 static int wait_mgsl_event(struct slgt_info *info, int __user *mask_ptr);
517 static int get_interface(struct slgt_info *info, int __user *if_mode);
518 static int set_interface(struct slgt_info *info, int if_mode);
519 static int set_gpio(struct slgt_info *info, struct gpio_desc __user *gpio);
520 static int get_gpio(struct slgt_info *info, struct gpio_desc __user *gpio);
521 static int wait_gpio(struct slgt_info *info, struct gpio_desc __user *gpio);
522 static int get_xsync(struct slgt_info *info, int __user *if_mode);
523 static int set_xsync(struct slgt_info *info, int if_mode);
524 static int get_xctrl(struct slgt_info *info, int __user *if_mode);
525 static int set_xctrl(struct slgt_info *info, int if_mode);
530 static void add_device(struct slgt_info *info);
532 static int claim_resources(struct slgt_info *info);
533 static void release_resources(struct slgt_info *info);
552 static void trace_block(struct slgt_info *info, const char *data, int count, const char *label) in trace_block() argument
556 printk("%s %s data:\n",info->device_name, label); in trace_block()
575 #define DBGDATA(info, buf, size, label) argument
579 static void dump_tbufs(struct slgt_info *info) in dump_tbufs() argument
582 printk("tbuf_current=%d\n", info->tbuf_current); in dump_tbufs()
583 for (i=0 ; i < info->tbuf_count ; i++) { in dump_tbufs()
585 i, le16_to_cpu(info->tbufs[i].count), le16_to_cpu(info->tbufs[i].status)); in dump_tbufs()
589 #define DBGTBUF(info) argument
593 static void dump_rbufs(struct slgt_info *info) in dump_rbufs() argument
596 printk("rbuf_current=%d\n", info->rbuf_current); in dump_rbufs()
597 for (i=0 ; i < info->rbuf_count ; i++) { in dump_rbufs()
599 i, le16_to_cpu(info->rbufs[i].count), le16_to_cpu(info->rbufs[i].status)); in dump_rbufs()
603 #define DBGRBUF(info) argument
606 static inline int sanity_check(struct slgt_info *info, char *devname, const char *name) in sanity_check() argument
609 if (!info) { in sanity_check()
613 if (info->magic != MGSL_MAGIC) { in sanity_check()
618 if (!info) in sanity_check()
650 struct slgt_info *info; in open() local
660 info = slgt_device_list; in open()
661 while(info && info->line != line) in open()
662 info = info->next_device; in open()
663 if (sanity_check(info, tty->name, "open")) in open()
665 if (info->init_error) { in open()
666 DBGERR(("%s init error=%d\n", info->device_name, info->init_error)); in open()
670 tty->driver_data = info; in open()
671 info->port.tty = tty; in open()
673 DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->port.count)); in open()
675 mutex_lock(&info->port.mutex); in open()
676 info->port.low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0; in open()
678 spin_lock_irqsave(&info->netlock, flags); in open()
679 if (info->netcount) { in open()
681 spin_unlock_irqrestore(&info->netlock, flags); in open()
682 mutex_unlock(&info->port.mutex); in open()
685 info->port.count++; in open()
686 spin_unlock_irqrestore(&info->netlock, flags); in open()
688 if (info->port.count == 1) { in open()
690 retval = startup(info); in open()
692 mutex_unlock(&info->port.mutex); in open()
696 mutex_unlock(&info->port.mutex); in open()
697 retval = block_til_ready(tty, filp, info); in open()
699 DBGINFO(("%s block_til_ready rc=%d\n", info->device_name, retval)); in open()
708 info->port.tty = NULL; /* tty layer will release tty struct */ in open()
709 if(info->port.count) in open()
710 info->port.count--; in open()
713 DBGINFO(("%s open rc=%d\n", info->device_name, retval)); in open()
719 struct slgt_info *info = tty->driver_data; in close() local
721 if (sanity_check(info, tty->name, "close")) in close()
723 DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count)); in close()
725 if (tty_port_close_start(&info->port, tty, filp) == 0) in close()
728 mutex_lock(&info->port.mutex); in close()
729 if (info->port.flags & ASYNC_INITIALIZED) in close()
730 wait_until_sent(tty, info->timeout); in close()
734 shutdown(info); in close()
735 mutex_unlock(&info->port.mutex); in close()
737 tty_port_close_end(&info->port, tty); in close()
738 info->port.tty = NULL; in close()
740 DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count)); in close()
745 struct slgt_info *info = tty->driver_data; in hangup() local
748 if (sanity_check(info, tty->name, "hangup")) in hangup()
750 DBGINFO(("%s hangup\n", info->device_name)); in hangup()
754 mutex_lock(&info->port.mutex); in hangup()
755 shutdown(info); in hangup()
757 spin_lock_irqsave(&info->port.lock, flags); in hangup()
758 info->port.count = 0; in hangup()
759 info->port.flags &= ~ASYNC_NORMAL_ACTIVE; in hangup()
760 info->port.tty = NULL; in hangup()
761 spin_unlock_irqrestore(&info->port.lock, flags); in hangup()
762 mutex_unlock(&info->port.mutex); in hangup()
764 wake_up_interruptible(&info->port.open_wait); in hangup()
769 struct slgt_info *info = tty->driver_data; in set_termios() local
774 change_params(info); in set_termios()
779 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in set_termios()
780 spin_lock_irqsave(&info->lock,flags); in set_termios()
781 set_signals(info); in set_termios()
782 spin_unlock_irqrestore(&info->lock,flags); in set_termios()
788 info->signals |= SerialSignal_DTR; in set_termios()
791 info->signals |= SerialSignal_RTS; in set_termios()
793 spin_lock_irqsave(&info->lock,flags); in set_termios()
794 set_signals(info); in set_termios()
795 spin_unlock_irqrestore(&info->lock,flags); in set_termios()
806 static void update_tx_timer(struct slgt_info *info) in update_tx_timer() argument
812 if (info->params.mode == MGSL_MODE_HDLC) { in update_tx_timer()
813 int timeout = (tbuf_bytes(info) * 7) + 1000; in update_tx_timer()
814 mod_timer(&info->tx_timer, jiffies + msecs_to_jiffies(timeout)); in update_tx_timer()
822 struct slgt_info *info = tty->driver_data; in write() local
825 if (sanity_check(info, tty->name, "write")) in write()
828 DBGINFO(("%s write count=%d\n", info->device_name, count)); in write()
830 if (!info->tx_buf || (count > info->max_frame_size)) in write()
836 spin_lock_irqsave(&info->lock, flags); in write()
838 if (info->tx_count) { in write()
840 if (!tx_load(info, info->tx_buf, info->tx_count)) in write()
842 info->tx_count = 0; in write()
845 if (tx_load(info, buf, count)) in write()
849 spin_unlock_irqrestore(&info->lock, flags); in write()
850 DBGINFO(("%s write rc=%d\n", info->device_name, ret)); in write()
856 struct slgt_info *info = tty->driver_data; in put_char() local
860 if (sanity_check(info, tty->name, "put_char")) in put_char()
862 DBGINFO(("%s put_char(%d)\n", info->device_name, ch)); in put_char()
863 if (!info->tx_buf) in put_char()
865 spin_lock_irqsave(&info->lock,flags); in put_char()
866 if (info->tx_count < info->max_frame_size) { in put_char()
867 info->tx_buf[info->tx_count++] = ch; in put_char()
870 spin_unlock_irqrestore(&info->lock,flags); in put_char()
876 struct slgt_info *info = tty->driver_data; in send_xchar() local
879 if (sanity_check(info, tty->name, "send_xchar")) in send_xchar()
881 DBGINFO(("%s send_xchar(%d)\n", info->device_name, ch)); in send_xchar()
882 info->x_char = ch; in send_xchar()
884 spin_lock_irqsave(&info->lock,flags); in send_xchar()
885 if (!info->tx_enabled) in send_xchar()
886 tx_start(info); in send_xchar()
887 spin_unlock_irqrestore(&info->lock,flags); in send_xchar()
893 struct slgt_info *info = tty->driver_data; in wait_until_sent() local
896 if (!info ) in wait_until_sent()
898 if (sanity_check(info, tty->name, "wait_until_sent")) in wait_until_sent()
900 DBGINFO(("%s wait_until_sent entry\n", info->device_name)); in wait_until_sent()
901 if (!(info->port.flags & ASYNC_INITIALIZED)) in wait_until_sent()
912 if (info->params.data_rate) { in wait_until_sent()
913 char_time = info->timeout/(32 * 5); in wait_until_sent()
922 while (info->tx_active) { in wait_until_sent()
930 DBGINFO(("%s wait_until_sent exit\n", info->device_name)); in wait_until_sent()
935 struct slgt_info *info = tty->driver_data; in write_room() local
938 if (sanity_check(info, tty->name, "write_room")) in write_room()
940 ret = (info->tx_active) ? 0 : HDLC_MAX_FRAME_SIZE; in write_room()
941 DBGINFO(("%s write_room=%d\n", info->device_name, ret)); in write_room()
947 struct slgt_info *info = tty->driver_data; in flush_chars() local
950 if (sanity_check(info, tty->name, "flush_chars")) in flush_chars()
952 DBGINFO(("%s flush_chars entry tx_count=%d\n", info->device_name, info->tx_count)); in flush_chars()
954 if (info->tx_count <= 0 || tty->stopped || in flush_chars()
955 tty->hw_stopped || !info->tx_buf) in flush_chars()
958 DBGINFO(("%s flush_chars start transmit\n", info->device_name)); in flush_chars()
960 spin_lock_irqsave(&info->lock,flags); in flush_chars()
961 if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count)) in flush_chars()
962 info->tx_count = 0; in flush_chars()
963 spin_unlock_irqrestore(&info->lock,flags); in flush_chars()
968 struct slgt_info *info = tty->driver_data; in flush_buffer() local
971 if (sanity_check(info, tty->name, "flush_buffer")) in flush_buffer()
973 DBGINFO(("%s flush_buffer\n", info->device_name)); in flush_buffer()
975 spin_lock_irqsave(&info->lock, flags); in flush_buffer()
976 info->tx_count = 0; in flush_buffer()
977 spin_unlock_irqrestore(&info->lock, flags); in flush_buffer()
987 struct slgt_info *info = tty->driver_data; in tx_hold() local
990 if (sanity_check(info, tty->name, "tx_hold")) in tx_hold()
992 DBGINFO(("%s tx_hold\n", info->device_name)); in tx_hold()
993 spin_lock_irqsave(&info->lock,flags); in tx_hold()
994 if (info->tx_enabled && info->params.mode == MGSL_MODE_ASYNC) in tx_hold()
995 tx_stop(info); in tx_hold()
996 spin_unlock_irqrestore(&info->lock,flags); in tx_hold()
1004 struct slgt_info *info = tty->driver_data; in tx_release() local
1007 if (sanity_check(info, tty->name, "tx_release")) in tx_release()
1009 DBGINFO(("%s tx_release\n", info->device_name)); in tx_release()
1010 spin_lock_irqsave(&info->lock, flags); in tx_release()
1011 if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count)) in tx_release()
1012 info->tx_count = 0; in tx_release()
1013 spin_unlock_irqrestore(&info->lock, flags); in tx_release()
1030 struct slgt_info *info = tty->driver_data; in ioctl() local
1034 if (sanity_check(info, tty->name, "ioctl")) in ioctl()
1036 DBGINFO(("%s ioctl() cmd=%08X\n", info->device_name, cmd)); in ioctl()
1046 return wait_mgsl_event(info, argp); in ioctl()
1048 return modem_input_wait(info,(int)arg); in ioctl()
1050 return set_gpio(info, argp); in ioctl()
1052 return get_gpio(info, argp); in ioctl()
1054 return wait_gpio(info, argp); in ioctl()
1056 return get_xsync(info, argp); in ioctl()
1058 return set_xsync(info, (int)arg); in ioctl()
1060 return get_xctrl(info, argp); in ioctl()
1062 return set_xctrl(info, (int)arg); in ioctl()
1064 mutex_lock(&info->port.mutex); in ioctl()
1067 ret = get_params(info, argp); in ioctl()
1070 ret = set_params(info, argp); in ioctl()
1073 ret = get_txidle(info, argp); in ioctl()
1076 ret = set_txidle(info, (int)arg); in ioctl()
1079 ret = tx_enable(info, (int)arg); in ioctl()
1082 ret = rx_enable(info, (int)arg); in ioctl()
1085 ret = tx_abort(info); in ioctl()
1088 ret = get_stats(info, argp); in ioctl()
1091 ret = get_interface(info, argp); in ioctl()
1094 ret = set_interface(info,(int)arg); in ioctl()
1099 mutex_unlock(&info->port.mutex); in ioctl()
1107 struct slgt_info *info = tty->driver_data; in get_icount() local
1111 spin_lock_irqsave(&info->lock,flags); in get_icount()
1112 cnow = info->icount; in get_icount()
1113 spin_unlock_irqrestore(&info->lock,flags); in get_icount()
1134 static long get_params32(struct slgt_info *info, struct MGSL_PARAMS32 __user *user_params) in get_params32() argument
1138 DBGINFO(("%s get_params32\n", info->device_name)); in get_params32()
1140 tmp_params.mode = (compat_ulong_t)info->params.mode; in get_params32()
1141 tmp_params.loopback = info->params.loopback; in get_params32()
1142 tmp_params.flags = info->params.flags; in get_params32()
1143 tmp_params.encoding = info->params.encoding; in get_params32()
1144 tmp_params.clock_speed = (compat_ulong_t)info->params.clock_speed; in get_params32()
1145 tmp_params.addr_filter = info->params.addr_filter; in get_params32()
1146 tmp_params.crc_type = info->params.crc_type; in get_params32()
1147 tmp_params.preamble_length = info->params.preamble_length; in get_params32()
1148 tmp_params.preamble = info->params.preamble; in get_params32()
1149 tmp_params.data_rate = (compat_ulong_t)info->params.data_rate; in get_params32()
1150 tmp_params.data_bits = info->params.data_bits; in get_params32()
1151 tmp_params.stop_bits = info->params.stop_bits; in get_params32()
1152 tmp_params.parity = info->params.parity; in get_params32()
1158 static long set_params32(struct slgt_info *info, struct MGSL_PARAMS32 __user *new_params) in set_params32() argument
1162 DBGINFO(("%s set_params32\n", info->device_name)); in set_params32()
1166 spin_lock(&info->lock); in set_params32()
1168 info->base_clock = tmp_params.clock_speed; in set_params32()
1170 info->params.mode = tmp_params.mode; in set_params32()
1171 info->params.loopback = tmp_params.loopback; in set_params32()
1172 info->params.flags = tmp_params.flags; in set_params32()
1173 info->params.encoding = tmp_params.encoding; in set_params32()
1174 info->params.clock_speed = tmp_params.clock_speed; in set_params32()
1175 info->params.addr_filter = tmp_params.addr_filter; in set_params32()
1176 info->params.crc_type = tmp_params.crc_type; in set_params32()
1177 info->params.preamble_length = tmp_params.preamble_length; in set_params32()
1178 info->params.preamble = tmp_params.preamble; in set_params32()
1179 info->params.data_rate = tmp_params.data_rate; in set_params32()
1180 info->params.data_bits = tmp_params.data_bits; in set_params32()
1181 info->params.stop_bits = tmp_params.stop_bits; in set_params32()
1182 info->params.parity = tmp_params.parity; in set_params32()
1184 spin_unlock(&info->lock); in set_params32()
1186 program_hw(info); in set_params32()
1194 struct slgt_info *info = tty->driver_data; in slgt_compat_ioctl() local
1197 if (sanity_check(info, tty->name, "compat_ioctl")) in slgt_compat_ioctl()
1199 DBGINFO(("%s compat_ioctl() cmd=%08X\n", info->device_name, cmd)); in slgt_compat_ioctl()
1204 rc = set_params32(info, compat_ptr(arg)); in slgt_compat_ioctl()
1208 rc = get_params32(info, compat_ptr(arg)); in slgt_compat_ioctl()
1234 DBGINFO(("%s compat_ioctl() cmd=%08X rc=%d\n", info->device_name, cmd, rc)); in slgt_compat_ioctl()
1244 static inline void line_info(struct seq_file *m, struct slgt_info *info) in line_info() argument
1250 info->device_name, info->phys_reg_addr, in line_info()
1251 info->irq_level, info->max_frame_size); in line_info()
1254 spin_lock_irqsave(&info->lock,flags); in line_info()
1255 get_signals(info); in line_info()
1256 spin_unlock_irqrestore(&info->lock,flags); in line_info()
1260 if (info->signals & SerialSignal_RTS) in line_info()
1262 if (info->signals & SerialSignal_CTS) in line_info()
1264 if (info->signals & SerialSignal_DTR) in line_info()
1266 if (info->signals & SerialSignal_DSR) in line_info()
1268 if (info->signals & SerialSignal_DCD) in line_info()
1270 if (info->signals & SerialSignal_RI) in line_info()
1273 if (info->params.mode != MGSL_MODE_ASYNC) { in line_info()
1275 info->icount.txok, info->icount.rxok); in line_info()
1276 if (info->icount.txunder) in line_info()
1277 seq_printf(m, " txunder:%d", info->icount.txunder); in line_info()
1278 if (info->icount.txabort) in line_info()
1279 seq_printf(m, " txabort:%d", info->icount.txabort); in line_info()
1280 if (info->icount.rxshort) in line_info()
1281 seq_printf(m, " rxshort:%d", info->icount.rxshort); in line_info()
1282 if (info->icount.rxlong) in line_info()
1283 seq_printf(m, " rxlong:%d", info->icount.rxlong); in line_info()
1284 if (info->icount.rxover) in line_info()
1285 seq_printf(m, " rxover:%d", info->icount.rxover); in line_info()
1286 if (info->icount.rxcrc) in line_info()
1287 seq_printf(m, " rxcrc:%d", info->icount.rxcrc); in line_info()
1290 info->icount.tx, info->icount.rx); in line_info()
1291 if (info->icount.frame) in line_info()
1292 seq_printf(m, " fe:%d", info->icount.frame); in line_info()
1293 if (info->icount.parity) in line_info()
1294 seq_printf(m, " pe:%d", info->icount.parity); in line_info()
1295 if (info->icount.brk) in line_info()
1296 seq_printf(m, " brk:%d", info->icount.brk); in line_info()
1297 if (info->icount.overrun) in line_info()
1298 seq_printf(m, " oe:%d", info->icount.overrun); in line_info()
1305 info->tx_active,info->bh_requested,info->bh_running, in line_info()
1306 info->pending_bh); in line_info()
1313 struct slgt_info *info; in synclink_gt_proc_show() local
1317 info = slgt_device_list; in synclink_gt_proc_show()
1318 while( info ) { in synclink_gt_proc_show()
1319 line_info(m, info); in synclink_gt_proc_show()
1320 info = info->next_device; in synclink_gt_proc_show()
1343 struct slgt_info *info = tty->driver_data; in chars_in_buffer() local
1345 if (sanity_check(info, tty->name, "chars_in_buffer")) in chars_in_buffer()
1347 count = tbuf_bytes(info); in chars_in_buffer()
1348 DBGINFO(("%s chars_in_buffer()=%d\n", info->device_name, count)); in chars_in_buffer()
1357 struct slgt_info *info = tty->driver_data; in throttle() local
1360 if (sanity_check(info, tty->name, "throttle")) in throttle()
1362 DBGINFO(("%s throttle\n", info->device_name)); in throttle()
1366 spin_lock_irqsave(&info->lock,flags); in throttle()
1367 info->signals &= ~SerialSignal_RTS; in throttle()
1368 set_signals(info); in throttle()
1369 spin_unlock_irqrestore(&info->lock,flags); in throttle()
1378 struct slgt_info *info = tty->driver_data; in unthrottle() local
1381 if (sanity_check(info, tty->name, "unthrottle")) in unthrottle()
1383 DBGINFO(("%s unthrottle\n", info->device_name)); in unthrottle()
1385 if (info->x_char) in unthrottle()
1386 info->x_char = 0; in unthrottle()
1391 spin_lock_irqsave(&info->lock,flags); in unthrottle()
1392 info->signals |= SerialSignal_RTS; in unthrottle()
1393 set_signals(info); in unthrottle()
1394 spin_unlock_irqrestore(&info->lock,flags); in unthrottle()
1404 struct slgt_info *info = tty->driver_data; in set_break() local
1408 if (sanity_check(info, tty->name, "set_break")) in set_break()
1410 DBGINFO(("%s set_break(%d)\n", info->device_name, break_state)); in set_break()
1412 spin_lock_irqsave(&info->lock,flags); in set_break()
1413 value = rd_reg16(info, TCR); in set_break()
1418 wr_reg16(info, TCR, value); in set_break()
1419 spin_unlock_irqrestore(&info->lock,flags); in set_break()
1438 struct slgt_info *info = dev_to_port(dev); in hdlcdev_attach() local
1443 if (info->port.count) in hdlcdev_attach()
1446 DBGINFO(("%s hdlcdev_attach\n", info->device_name)); in hdlcdev_attach()
1466 info->params.encoding = new_encoding; in hdlcdev_attach()
1467 info->params.crc_type = new_crctype; in hdlcdev_attach()
1470 if (info->netcount) in hdlcdev_attach()
1471 program_hw(info); in hdlcdev_attach()
1485 struct slgt_info *info = dev_to_port(dev); in hdlcdev_xmit() local
1503 spin_lock_irqsave(&info->lock, flags); in hdlcdev_xmit()
1504 tx_load(info, skb->data, skb->len); in hdlcdev_xmit()
1505 spin_unlock_irqrestore(&info->lock, flags); in hdlcdev_xmit()
1523 struct slgt_info *info = dev_to_port(dev); in hdlcdev_open() local
1538 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_open()
1539 if (info->port.count != 0 || info->netcount != 0) { in hdlcdev_open()
1541 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1544 info->netcount=1; in hdlcdev_open()
1545 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1548 if ((rc = startup(info)) != 0) { in hdlcdev_open()
1549 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_open()
1550 info->netcount=0; in hdlcdev_open()
1551 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1556 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in hdlcdev_open()
1557 program_hw(info); in hdlcdev_open()
1564 spin_lock_irqsave(&info->lock, flags); in hdlcdev_open()
1565 get_signals(info); in hdlcdev_open()
1566 spin_unlock_irqrestore(&info->lock, flags); in hdlcdev_open()
1567 if (info->signals & SerialSignal_DCD) in hdlcdev_open()
1584 struct slgt_info *info = dev_to_port(dev); in hdlcdev_close() local
1592 shutdown(info); in hdlcdev_close()
1596 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_close()
1597 info->netcount=0; in hdlcdev_close()
1598 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_close()
1618 struct slgt_info *info = dev_to_port(dev); in hdlcdev_ioctl() local
1624 if (info->port.count) in hdlcdev_ioctl()
1641 flags = info->params.flags & (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL | in hdlcdev_ioctl()
1654 new_line.clock_rate = info->params.clock_speed; in hdlcdev_ioctl()
1655 new_line.loopback = info->params.loopback ? 1:0; in hdlcdev_ioctl()
1674 case CLOCK_DEFAULT: flags = info->params.flags & in hdlcdev_ioctl()
1685 info->params.flags &= ~(HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL | in hdlcdev_ioctl()
1689 info->params.flags |= flags; in hdlcdev_ioctl()
1691 info->params.loopback = new_line.loopback; in hdlcdev_ioctl()
1694 info->params.clock_speed = new_line.clock_rate; in hdlcdev_ioctl()
1696 info->params.clock_speed = 0; in hdlcdev_ioctl()
1699 if (info->netcount) in hdlcdev_ioctl()
1700 program_hw(info); in hdlcdev_ioctl()
1715 struct slgt_info *info = dev_to_port(dev); in hdlcdev_tx_timeout() local
1723 spin_lock_irqsave(&info->lock,flags); in hdlcdev_tx_timeout()
1724 tx_stop(info); in hdlcdev_tx_timeout()
1725 spin_unlock_irqrestore(&info->lock,flags); in hdlcdev_tx_timeout()
1736 static void hdlcdev_tx_done(struct slgt_info *info) in hdlcdev_tx_done() argument
1738 if (netif_queue_stopped(info->netdev)) in hdlcdev_tx_done()
1739 netif_wake_queue(info->netdev); in hdlcdev_tx_done()
1750 static void hdlcdev_rx(struct slgt_info *info, char *buf, int size) in hdlcdev_rx() argument
1753 struct net_device *dev = info->netdev; in hdlcdev_rx()
1790 static int hdlcdev_init(struct slgt_info *info) in hdlcdev_init() argument
1798 dev = alloc_hdlcdev(info); in hdlcdev_init()
1800 printk(KERN_ERR "%s hdlc device alloc failure\n", info->device_name); in hdlcdev_init()
1805 dev->mem_start = info->phys_reg_addr; in hdlcdev_init()
1806 dev->mem_end = info->phys_reg_addr + SLGT_REG_SIZE - 1; in hdlcdev_init()
1807 dev->irq = info->irq_level; in hdlcdev_init()
1827 info->netdev = dev; in hdlcdev_init()
1837 static void hdlcdev_exit(struct slgt_info *info) in hdlcdev_exit() argument
1839 unregister_hdlc_device(info->netdev); in hdlcdev_exit()
1840 free_netdev(info->netdev); in hdlcdev_exit()
1841 info->netdev = NULL; in hdlcdev_exit()
1849 static void rx_async(struct slgt_info *info) in rx_async() argument
1851 struct mgsl_icount *icount = &info->icount; in rx_async()
1855 struct slgt_desc *bufs = info->rbufs; in rx_async()
1861 start = end = info->rbuf_current; in rx_async()
1864 count = desc_count(bufs[end]) - info->rbuf_index; in rx_async()
1865 p = bufs[end].buf + info->rbuf_index; in rx_async()
1867 DBGISR(("%s rx_async count=%d\n", info->device_name, count)); in rx_async()
1868 DBGDATA(info, p, count, "rx"); in rx_async()
1883 if (status & info->ignore_status_mask) in rx_async()
1890 tty_insert_flip_char(&info->port, ch, stat); in rx_async()
1896 info->rbuf_index += i; in rx_async()
1897 mod_timer(&info->rx_timer, jiffies + 1); in rx_async()
1901 info->rbuf_index = 0; in rx_async()
1902 free_rbufs(info, end, end); in rx_async()
1904 if (++end == info->rbuf_count) in rx_async()
1913 tty_flip_buffer_push(&info->port); in rx_async()
1919 static int bh_action(struct slgt_info *info) in bh_action() argument
1924 spin_lock_irqsave(&info->lock,flags); in bh_action()
1926 if (info->pending_bh & BH_RECEIVE) { in bh_action()
1927 info->pending_bh &= ~BH_RECEIVE; in bh_action()
1929 } else if (info->pending_bh & BH_TRANSMIT) { in bh_action()
1930 info->pending_bh &= ~BH_TRANSMIT; in bh_action()
1932 } else if (info->pending_bh & BH_STATUS) { in bh_action()
1933 info->pending_bh &= ~BH_STATUS; in bh_action()
1937 info->bh_running = false; in bh_action()
1938 info->bh_requested = false; in bh_action()
1942 spin_unlock_irqrestore(&info->lock,flags); in bh_action()
1952 struct slgt_info *info = container_of(work, struct slgt_info, task); in bh_handler() local
1955 info->bh_running = true; in bh_handler()
1957 while((action = bh_action(info))) { in bh_handler()
1960 DBGBH(("%s bh receive\n", info->device_name)); in bh_handler()
1961 switch(info->params.mode) { in bh_handler()
1963 rx_async(info); in bh_handler()
1966 while(rx_get_frame(info)); in bh_handler()
1972 while(rx_get_buf(info)); in bh_handler()
1976 if (info->rx_restart) in bh_handler()
1977 rx_start(info); in bh_handler()
1980 bh_transmit(info); in bh_handler()
1983 DBGBH(("%s bh status\n", info->device_name)); in bh_handler()
1984 info->ri_chkcount = 0; in bh_handler()
1985 info->dsr_chkcount = 0; in bh_handler()
1986 info->dcd_chkcount = 0; in bh_handler()
1987 info->cts_chkcount = 0; in bh_handler()
1990 DBGBH(("%s unknown action\n", info->device_name)); in bh_handler()
1994 DBGBH(("%s bh_handler exit\n", info->device_name)); in bh_handler()
1997 static void bh_transmit(struct slgt_info *info) in bh_transmit() argument
1999 struct tty_struct *tty = info->port.tty; in bh_transmit()
2001 DBGBH(("%s bh_transmit\n", info->device_name)); in bh_transmit()
2006 static void dsr_change(struct slgt_info *info, unsigned short status) in dsr_change() argument
2009 info->signals |= SerialSignal_DSR; in dsr_change()
2010 info->input_signal_events.dsr_up++; in dsr_change()
2012 info->signals &= ~SerialSignal_DSR; in dsr_change()
2013 info->input_signal_events.dsr_down++; in dsr_change()
2015 DBGISR(("dsr_change %s signals=%04X\n", info->device_name, info->signals)); in dsr_change()
2016 if ((info->dsr_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in dsr_change()
2017 slgt_irq_off(info, IRQ_DSR); in dsr_change()
2020 info->icount.dsr++; in dsr_change()
2021 wake_up_interruptible(&info->status_event_wait_q); in dsr_change()
2022 wake_up_interruptible(&info->event_wait_q); in dsr_change()
2023 info->pending_bh |= BH_STATUS; in dsr_change()
2026 static void cts_change(struct slgt_info *info, unsigned short status) in cts_change() argument
2029 info->signals |= SerialSignal_CTS; in cts_change()
2030 info->input_signal_events.cts_up++; in cts_change()
2032 info->signals &= ~SerialSignal_CTS; in cts_change()
2033 info->input_signal_events.cts_down++; in cts_change()
2035 DBGISR(("cts_change %s signals=%04X\n", info->device_name, info->signals)); in cts_change()
2036 if ((info->cts_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in cts_change()
2037 slgt_irq_off(info, IRQ_CTS); in cts_change()
2040 info->icount.cts++; in cts_change()
2041 wake_up_interruptible(&info->status_event_wait_q); in cts_change()
2042 wake_up_interruptible(&info->event_wait_q); in cts_change()
2043 info->pending_bh |= BH_STATUS; in cts_change()
2045 if (tty_port_cts_enabled(&info->port)) { in cts_change()
2046 if (info->port.tty) { in cts_change()
2047 if (info->port.tty->hw_stopped) { in cts_change()
2048 if (info->signals & SerialSignal_CTS) { in cts_change()
2049 info->port.tty->hw_stopped = 0; in cts_change()
2050 info->pending_bh |= BH_TRANSMIT; in cts_change()
2054 if (!(info->signals & SerialSignal_CTS)) in cts_change()
2055 info->port.tty->hw_stopped = 1; in cts_change()
2061 static void dcd_change(struct slgt_info *info, unsigned short status) in dcd_change() argument
2064 info->signals |= SerialSignal_DCD; in dcd_change()
2065 info->input_signal_events.dcd_up++; in dcd_change()
2067 info->signals &= ~SerialSignal_DCD; in dcd_change()
2068 info->input_signal_events.dcd_down++; in dcd_change()
2070 DBGISR(("dcd_change %s signals=%04X\n", info->device_name, info->signals)); in dcd_change()
2071 if ((info->dcd_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in dcd_change()
2072 slgt_irq_off(info, IRQ_DCD); in dcd_change()
2075 info->icount.dcd++; in dcd_change()
2077 if (info->netcount) { in dcd_change()
2078 if (info->signals & SerialSignal_DCD) in dcd_change()
2079 netif_carrier_on(info->netdev); in dcd_change()
2081 netif_carrier_off(info->netdev); in dcd_change()
2084 wake_up_interruptible(&info->status_event_wait_q); in dcd_change()
2085 wake_up_interruptible(&info->event_wait_q); in dcd_change()
2086 info->pending_bh |= BH_STATUS; in dcd_change()
2088 if (info->port.flags & ASYNC_CHECK_CD) { in dcd_change()
2089 if (info->signals & SerialSignal_DCD) in dcd_change()
2090 wake_up_interruptible(&info->port.open_wait); in dcd_change()
2092 if (info->port.tty) in dcd_change()
2093 tty_hangup(info->port.tty); in dcd_change()
2098 static void ri_change(struct slgt_info *info, unsigned short status) in ri_change() argument
2101 info->signals |= SerialSignal_RI; in ri_change()
2102 info->input_signal_events.ri_up++; in ri_change()
2104 info->signals &= ~SerialSignal_RI; in ri_change()
2105 info->input_signal_events.ri_down++; in ri_change()
2107 DBGISR(("ri_change %s signals=%04X\n", info->device_name, info->signals)); in ri_change()
2108 if ((info->ri_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in ri_change()
2109 slgt_irq_off(info, IRQ_RI); in ri_change()
2112 info->icount.rng++; in ri_change()
2113 wake_up_interruptible(&info->status_event_wait_q); in ri_change()
2114 wake_up_interruptible(&info->event_wait_q); in ri_change()
2115 info->pending_bh |= BH_STATUS; in ri_change()
2118 static void isr_rxdata(struct slgt_info *info) in isr_rxdata() argument
2120 unsigned int count = info->rbuf_fill_count; in isr_rxdata()
2121 unsigned int i = info->rbuf_fill_index; in isr_rxdata()
2124 while (rd_reg16(info, SSR) & IRQ_RXDATA) { in isr_rxdata()
2125 reg = rd_reg16(info, RDR); in isr_rxdata()
2126 DBGISR(("isr_rxdata %s RDR=%04X\n", info->device_name, reg)); in isr_rxdata()
2127 if (desc_complete(info->rbufs[i])) { in isr_rxdata()
2129 rx_stop(info); in isr_rxdata()
2130 info->rx_restart = 1; in isr_rxdata()
2133 info->rbufs[i].buf[count++] = (unsigned char)reg; in isr_rxdata()
2135 if (info->params.mode == MGSL_MODE_ASYNC) in isr_rxdata()
2136 info->rbufs[i].buf[count++] = (unsigned char)(reg >> 8); in isr_rxdata()
2137 if (count == info->rbuf_fill_level || (reg & BIT10)) { in isr_rxdata()
2139 set_desc_count(info->rbufs[i], count); in isr_rxdata()
2140 set_desc_status(info->rbufs[i], BIT15 | (reg >> 8)); in isr_rxdata()
2141 info->rbuf_fill_count = count = 0; in isr_rxdata()
2142 if (++i == info->rbuf_count) in isr_rxdata()
2144 info->pending_bh |= BH_RECEIVE; in isr_rxdata()
2148 info->rbuf_fill_index = i; in isr_rxdata()
2149 info->rbuf_fill_count = count; in isr_rxdata()
2152 static void isr_serial(struct slgt_info *info) in isr_serial() argument
2154 unsigned short status = rd_reg16(info, SSR); in isr_serial()
2156 DBGISR(("%s isr_serial status=%04X\n", info->device_name, status)); in isr_serial()
2158 wr_reg16(info, SSR, status); /* clear pending */ in isr_serial()
2160 info->irq_occurred = true; in isr_serial()
2162 if (info->params.mode == MGSL_MODE_ASYNC) { in isr_serial()
2164 if (info->tx_active) in isr_serial()
2165 isr_txeom(info, status); in isr_serial()
2167 if (info->rx_pio && (status & IRQ_RXDATA)) in isr_serial()
2168 isr_rxdata(info); in isr_serial()
2170 info->icount.brk++; in isr_serial()
2172 if (info->port.tty) { in isr_serial()
2173 if (!(status & info->ignore_status_mask)) { in isr_serial()
2174 if (info->read_status_mask & MASK_BREAK) { in isr_serial()
2175 tty_insert_flip_char(&info->port, 0, TTY_BREAK); in isr_serial()
2176 if (info->port.flags & ASYNC_SAK) in isr_serial()
2177 do_SAK(info->port.tty); in isr_serial()
2184 isr_txeom(info, status); in isr_serial()
2185 if (info->rx_pio && (status & IRQ_RXDATA)) in isr_serial()
2186 isr_rxdata(info); in isr_serial()
2189 info->icount.rxidle++; in isr_serial()
2191 info->icount.exithunt++; in isr_serial()
2192 wake_up_interruptible(&info->event_wait_q); in isr_serial()
2196 rx_start(info); in isr_serial()
2200 dsr_change(info, status); in isr_serial()
2202 cts_change(info, status); in isr_serial()
2204 dcd_change(info, status); in isr_serial()
2206 ri_change(info, status); in isr_serial()
2209 static void isr_rdma(struct slgt_info *info) in isr_rdma() argument
2211 unsigned int status = rd_reg32(info, RDCSR); in isr_rdma()
2213 DBGISR(("%s isr_rdma status=%08x\n", info->device_name, status)); in isr_rdma()
2226 wr_reg32(info, RDCSR, status); /* clear pending */ in isr_rdma()
2229 DBGISR(("%s isr_rdma rx_restart=1\n", info->device_name)); in isr_rdma()
2230 info->rx_restart = true; in isr_rdma()
2232 info->pending_bh |= BH_RECEIVE; in isr_rdma()
2235 static void isr_tdma(struct slgt_info *info) in isr_tdma() argument
2237 unsigned int status = rd_reg32(info, TDCSR); in isr_tdma()
2239 DBGISR(("%s isr_tdma status=%08x\n", info->device_name, status)); in isr_tdma()
2251 wr_reg32(info, TDCSR, status); /* clear pending */ in isr_tdma()
2256 info->pending_bh |= BH_TRANSMIT; in isr_tdma()
2266 static bool unsent_tbufs(struct slgt_info *info) in unsent_tbufs() argument
2268 unsigned int i = info->tbuf_current; in unsent_tbufs()
2280 i = info->tbuf_count - 1; in unsent_tbufs()
2281 if (!desc_count(info->tbufs[i])) in unsent_tbufs()
2283 info->tbuf_start = i; in unsent_tbufs()
2285 } while (i != info->tbuf_current); in unsent_tbufs()
2290 static void isr_txeom(struct slgt_info *info, unsigned short status) in isr_txeom() argument
2292 DBGISR(("%s txeom status=%04x\n", info->device_name, status)); in isr_txeom()
2294 slgt_irq_off(info, IRQ_TXDATA + IRQ_TXIDLE + IRQ_TXUNDER); in isr_txeom()
2295 tdma_reset(info); in isr_txeom()
2297 unsigned short val = rd_reg16(info, TCR); in isr_txeom()
2298 wr_reg16(info, TCR, (unsigned short)(val | BIT2)); /* set reset bit */ in isr_txeom()
2299 wr_reg16(info, TCR, val); /* clear reset bit */ in isr_txeom()
2302 if (info->tx_active) { in isr_txeom()
2303 if (info->params.mode != MGSL_MODE_ASYNC) { in isr_txeom()
2305 info->icount.txunder++; in isr_txeom()
2307 info->icount.txok++; in isr_txeom()
2310 if (unsent_tbufs(info)) { in isr_txeom()
2311 tx_start(info); in isr_txeom()
2312 update_tx_timer(info); in isr_txeom()
2315 info->tx_active = false; in isr_txeom()
2317 del_timer(&info->tx_timer); in isr_txeom()
2319 if (info->params.mode != MGSL_MODE_ASYNC && info->drop_rts_on_tx_done) { in isr_txeom()
2320 info->signals &= ~SerialSignal_RTS; in isr_txeom()
2321 info->drop_rts_on_tx_done = false; in isr_txeom()
2322 set_signals(info); in isr_txeom()
2326 if (info->netcount) in isr_txeom()
2327 hdlcdev_tx_done(info); in isr_txeom()
2331 if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) { in isr_txeom()
2332 tx_stop(info); in isr_txeom()
2335 info->pending_bh |= BH_TRANSMIT; in isr_txeom()
2340 static void isr_gpio(struct slgt_info *info, unsigned int changed, unsigned int state) in isr_gpio() argument
2345 for (w = info->gpio_wait_q, prev = NULL ; w != NULL ; w = w->next) { in isr_gpio()
2352 info->gpio_wait_q = w->next; in isr_gpio()
2365 struct slgt_info *info = dev_id; in slgt_interrupt() local
2369 DBGISR(("slgt_interrupt irq=%d entry\n", info->irq_level)); in slgt_interrupt()
2371 while((gsr = rd_reg32(info, GSR) & 0xffffff00)) { in slgt_interrupt()
2372 DBGISR(("%s gsr=%08x\n", info->device_name, gsr)); in slgt_interrupt()
2373 info->irq_occurred = true; in slgt_interrupt()
2374 for(i=0; i < info->port_count ; i++) { in slgt_interrupt()
2375 if (info->port_array[i] == NULL) in slgt_interrupt()
2377 spin_lock(&info->port_array[i]->lock); in slgt_interrupt()
2379 isr_serial(info->port_array[i]); in slgt_interrupt()
2381 isr_rdma(info->port_array[i]); in slgt_interrupt()
2383 isr_tdma(info->port_array[i]); in slgt_interrupt()
2384 spin_unlock(&info->port_array[i]->lock); in slgt_interrupt()
2388 if (info->gpio_present) { in slgt_interrupt()
2391 spin_lock(&info->lock); in slgt_interrupt()
2392 while ((changed = rd_reg32(info, IOSR)) != 0) { in slgt_interrupt()
2393 DBGISR(("%s iosr=%08x\n", info->device_name, changed)); in slgt_interrupt()
2395 state = rd_reg32(info, IOVR); in slgt_interrupt()
2397 wr_reg32(info, IOSR, changed); in slgt_interrupt()
2398 for (i=0 ; i < info->port_count ; i++) { in slgt_interrupt()
2399 if (info->port_array[i] != NULL) in slgt_interrupt()
2400 isr_gpio(info->port_array[i], changed, state); in slgt_interrupt()
2403 spin_unlock(&info->lock); in slgt_interrupt()
2406 for(i=0; i < info->port_count ; i++) { in slgt_interrupt()
2407 struct slgt_info *port = info->port_array[i]; in slgt_interrupt()
2421 DBGISR(("slgt_interrupt irq=%d exit\n", info->irq_level)); in slgt_interrupt()
2425 static int startup(struct slgt_info *info) in startup() argument
2427 DBGINFO(("%s startup\n", info->device_name)); in startup()
2429 if (info->port.flags & ASYNC_INITIALIZED) in startup()
2432 if (!info->tx_buf) { in startup()
2433 info->tx_buf = kmalloc(info->max_frame_size, GFP_KERNEL); in startup()
2434 if (!info->tx_buf) { in startup()
2435 DBGERR(("%s can't allocate tx buffer\n", info->device_name)); in startup()
2440 info->pending_bh = 0; in startup()
2442 memset(&info->icount, 0, sizeof(info->icount)); in startup()
2445 change_params(info); in startup()
2447 if (info->port.tty) in startup()
2448 clear_bit(TTY_IO_ERROR, &info->port.tty->flags); in startup()
2450 info->port.flags |= ASYNC_INITIALIZED; in startup()
2458 static void shutdown(struct slgt_info *info) in shutdown() argument
2462 if (!(info->port.flags & ASYNC_INITIALIZED)) in shutdown()
2465 DBGINFO(("%s shutdown\n", info->device_name)); in shutdown()
2469 wake_up_interruptible(&info->status_event_wait_q); in shutdown()
2470 wake_up_interruptible(&info->event_wait_q); in shutdown()
2472 del_timer_sync(&info->tx_timer); in shutdown()
2473 del_timer_sync(&info->rx_timer); in shutdown()
2475 kfree(info->tx_buf); in shutdown()
2476 info->tx_buf = NULL; in shutdown()
2478 spin_lock_irqsave(&info->lock,flags); in shutdown()
2480 tx_stop(info); in shutdown()
2481 rx_stop(info); in shutdown()
2483 slgt_irq_off(info, IRQ_ALL | IRQ_MASTER); in shutdown()
2485 if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) { in shutdown()
2486 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in shutdown()
2487 set_signals(info); in shutdown()
2490 flush_cond_wait(&info->gpio_wait_q); in shutdown()
2492 spin_unlock_irqrestore(&info->lock,flags); in shutdown()
2494 if (info->port.tty) in shutdown()
2495 set_bit(TTY_IO_ERROR, &info->port.tty->flags); in shutdown()
2497 info->port.flags &= ~ASYNC_INITIALIZED; in shutdown()
2500 static void program_hw(struct slgt_info *info) in program_hw() argument
2504 spin_lock_irqsave(&info->lock,flags); in program_hw()
2506 rx_stop(info); in program_hw()
2507 tx_stop(info); in program_hw()
2509 if (info->params.mode != MGSL_MODE_ASYNC || in program_hw()
2510 info->netcount) in program_hw()
2511 sync_mode(info); in program_hw()
2513 async_mode(info); in program_hw()
2515 set_signals(info); in program_hw()
2517 info->dcd_chkcount = 0; in program_hw()
2518 info->cts_chkcount = 0; in program_hw()
2519 info->ri_chkcount = 0; in program_hw()
2520 info->dsr_chkcount = 0; in program_hw()
2522 slgt_irq_on(info, IRQ_DCD | IRQ_CTS | IRQ_DSR | IRQ_RI); in program_hw()
2523 get_signals(info); in program_hw()
2525 if (info->netcount || in program_hw()
2526 (info->port.tty && info->port.tty->termios.c_cflag & CREAD)) in program_hw()
2527 rx_start(info); in program_hw()
2529 spin_unlock_irqrestore(&info->lock,flags); in program_hw()
2535 static void change_params(struct slgt_info *info) in change_params() argument
2540 if (!info->port.tty) in change_params()
2542 DBGINFO(("%s change_params\n", info->device_name)); in change_params()
2544 cflag = info->port.tty->termios.c_cflag; in change_params()
2549 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in change_params()
2551 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in change_params()
2556 case CS5: info->params.data_bits = 5; break; in change_params()
2557 case CS6: info->params.data_bits = 6; break; in change_params()
2558 case CS7: info->params.data_bits = 7; break; in change_params()
2559 case CS8: info->params.data_bits = 8; break; in change_params()
2560 default: info->params.data_bits = 7; break; in change_params()
2563 info->params.stop_bits = (cflag & CSTOPB) ? 2 : 1; in change_params()
2566 info->params.parity = (cflag & PARODD) ? ASYNC_PARITY_ODD : ASYNC_PARITY_EVEN; in change_params()
2568 info->params.parity = ASYNC_PARITY_NONE; in change_params()
2573 bits_per_char = info->params.data_bits + in change_params()
2574 info->params.stop_bits + 1; in change_params()
2576 info->params.data_rate = tty_get_baud_rate(info->port.tty); in change_params()
2578 if (info->params.data_rate) { in change_params()
2579 info->timeout = (32*HZ*bits_per_char) / in change_params()
2580 info->params.data_rate; in change_params()
2582 info->timeout += HZ/50; /* Add .02 seconds of slop */ in change_params()
2585 info->port.flags |= ASYNC_CTS_FLOW; in change_params()
2587 info->port.flags &= ~ASYNC_CTS_FLOW; in change_params()
2590 info->port.flags &= ~ASYNC_CHECK_CD; in change_params()
2592 info->port.flags |= ASYNC_CHECK_CD; in change_params()
2596 info->read_status_mask = IRQ_RXOVER; in change_params()
2597 if (I_INPCK(info->port.tty)) in change_params()
2598 info->read_status_mask |= MASK_PARITY | MASK_FRAMING; in change_params()
2599 if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty)) in change_params()
2600 info->read_status_mask |= MASK_BREAK; in change_params()
2601 if (I_IGNPAR(info->port.tty)) in change_params()
2602 info->ignore_status_mask |= MASK_PARITY | MASK_FRAMING; in change_params()
2603 if (I_IGNBRK(info->port.tty)) { in change_params()
2604 info->ignore_status_mask |= MASK_BREAK; in change_params()
2608 if (I_IGNPAR(info->port.tty)) in change_params()
2609 info->ignore_status_mask |= MASK_OVERRUN; in change_params()
2612 program_hw(info); in change_params()
2615 static int get_stats(struct slgt_info *info, struct mgsl_icount __user *user_icount) in get_stats() argument
2617 DBGINFO(("%s get_stats\n", info->device_name)); in get_stats()
2619 memset(&info->icount, 0, sizeof(info->icount)); in get_stats()
2621 if (copy_to_user(user_icount, &info->icount, sizeof(struct mgsl_icount))) in get_stats()
2627 static int get_params(struct slgt_info *info, MGSL_PARAMS __user *user_params) in get_params() argument
2629 DBGINFO(("%s get_params\n", info->device_name)); in get_params()
2630 if (copy_to_user(user_params, &info->params, sizeof(MGSL_PARAMS))) in get_params()
2635 static int set_params(struct slgt_info *info, MGSL_PARAMS __user *new_params) in set_params() argument
2640 DBGINFO(("%s set_params\n", info->device_name)); in set_params()
2644 spin_lock_irqsave(&info->lock, flags); in set_params()
2646 info->base_clock = tmp_params.clock_speed; in set_params()
2648 memcpy(&info->params, &tmp_params, sizeof(MGSL_PARAMS)); in set_params()
2649 spin_unlock_irqrestore(&info->lock, flags); in set_params()
2651 program_hw(info); in set_params()
2656 static int get_txidle(struct slgt_info *info, int __user *idle_mode) in get_txidle() argument
2658 DBGINFO(("%s get_txidle=%d\n", info->device_name, info->idle_mode)); in get_txidle()
2659 if (put_user(info->idle_mode, idle_mode)) in get_txidle()
2664 static int set_txidle(struct slgt_info *info, int idle_mode) in set_txidle() argument
2667 DBGINFO(("%s set_txidle(%d)\n", info->device_name, idle_mode)); in set_txidle()
2668 spin_lock_irqsave(&info->lock,flags); in set_txidle()
2669 info->idle_mode = idle_mode; in set_txidle()
2670 if (info->params.mode != MGSL_MODE_ASYNC) in set_txidle()
2671 tx_set_idle(info); in set_txidle()
2672 spin_unlock_irqrestore(&info->lock,flags); in set_txidle()
2676 static int tx_enable(struct slgt_info *info, int enable) in tx_enable() argument
2679 DBGINFO(("%s tx_enable(%d)\n", info->device_name, enable)); in tx_enable()
2680 spin_lock_irqsave(&info->lock,flags); in tx_enable()
2682 if (!info->tx_enabled) in tx_enable()
2683 tx_start(info); in tx_enable()
2685 if (info->tx_enabled) in tx_enable()
2686 tx_stop(info); in tx_enable()
2688 spin_unlock_irqrestore(&info->lock,flags); in tx_enable()
2695 static int tx_abort(struct slgt_info *info) in tx_abort() argument
2698 DBGINFO(("%s tx_abort\n", info->device_name)); in tx_abort()
2699 spin_lock_irqsave(&info->lock,flags); in tx_abort()
2700 tdma_reset(info); in tx_abort()
2701 spin_unlock_irqrestore(&info->lock,flags); in tx_abort()
2705 static int rx_enable(struct slgt_info *info, int enable) in rx_enable() argument
2709 DBGINFO(("%s rx_enable(%08x)\n", info->device_name, enable)); in rx_enable()
2710 spin_lock_irqsave(&info->lock,flags); in rx_enable()
2719 spin_unlock_irqrestore(&info->lock, flags); in rx_enable()
2722 info->rbuf_fill_level = rbuf_fill_level; in rx_enable()
2724 info->rx_pio = 1; /* PIO mode */ in rx_enable()
2726 info->rx_pio = 0; /* DMA mode */ in rx_enable()
2727 rx_stop(info); /* restart receiver to use new fill level */ in rx_enable()
2738 if (!info->rx_enabled) in rx_enable()
2739 rx_start(info); in rx_enable()
2742 wr_reg16(info, RCR, rd_reg16(info, RCR) | BIT3); in rx_enable()
2745 if (info->rx_enabled) in rx_enable()
2746 rx_stop(info); in rx_enable()
2748 spin_unlock_irqrestore(&info->lock,flags); in rx_enable()
2755 static int wait_mgsl_event(struct slgt_info *info, int __user *mask_ptr) in wait_mgsl_event() argument
2769 DBGINFO(("%s wait_mgsl_event(%d)\n", info->device_name, mask)); in wait_mgsl_event()
2771 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2774 get_signals(info); in wait_mgsl_event()
2775 s = info->signals; in wait_mgsl_event()
2783 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2788 cprev = info->icount; in wait_mgsl_event()
2789 oldsigs = info->input_signal_events; in wait_mgsl_event()
2793 unsigned short val = rd_reg16(info, SCR); in wait_mgsl_event()
2795 wr_reg16(info, SCR, (unsigned short)(val | IRQ_RXIDLE)); in wait_mgsl_event()
2799 add_wait_queue(&info->event_wait_q, &wait); in wait_mgsl_event()
2801 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2811 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2812 cnow = info->icount; in wait_mgsl_event()
2813 newsigs = info->input_signal_events; in wait_mgsl_event()
2815 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2850 remove_wait_queue(&info->event_wait_q, &wait); in wait_mgsl_event()
2855 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2856 if (!waitqueue_active(&info->event_wait_q)) { in wait_mgsl_event()
2858 wr_reg16(info, SCR, in wait_mgsl_event()
2859 (unsigned short)(rd_reg16(info, SCR) & ~IRQ_RXIDLE)); in wait_mgsl_event()
2861 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2869 static int get_interface(struct slgt_info *info, int __user *if_mode) in get_interface() argument
2871 DBGINFO(("%s get_interface=%x\n", info->device_name, info->if_mode)); in get_interface()
2872 if (put_user(info->if_mode, if_mode)) in get_interface()
2877 static int set_interface(struct slgt_info *info, int if_mode) in set_interface() argument
2882 DBGINFO(("%s set_interface=%x)\n", info->device_name, if_mode)); in set_interface()
2883 spin_lock_irqsave(&info->lock,flags); in set_interface()
2884 info->if_mode = if_mode; in set_interface()
2886 msc_set_vcr(info); in set_interface()
2889 val = rd_reg16(info, TCR); in set_interface()
2890 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in set_interface()
2894 wr_reg16(info, TCR, val); in set_interface()
2896 spin_unlock_irqrestore(&info->lock,flags); in set_interface()
2900 static int get_xsync(struct slgt_info *info, int __user *xsync) in get_xsync() argument
2902 DBGINFO(("%s get_xsync=%x\n", info->device_name, info->xsync)); in get_xsync()
2903 if (put_user(info->xsync, xsync)) in get_xsync()
2914 static int set_xsync(struct slgt_info *info, int xsync) in set_xsync() argument
2918 DBGINFO(("%s set_xsync=%x)\n", info->device_name, xsync)); in set_xsync()
2919 spin_lock_irqsave(&info->lock, flags); in set_xsync()
2920 info->xsync = xsync; in set_xsync()
2921 wr_reg32(info, XSR, xsync); in set_xsync()
2922 spin_unlock_irqrestore(&info->lock, flags); in set_xsync()
2926 static int get_xctrl(struct slgt_info *info, int __user *xctrl) in get_xctrl() argument
2928 DBGINFO(("%s get_xctrl=%x\n", info->device_name, info->xctrl)); in get_xctrl()
2929 if (put_user(info->xctrl, xctrl)) in get_xctrl()
2951 static int set_xctrl(struct slgt_info *info, int xctrl) in set_xctrl() argument
2955 DBGINFO(("%s set_xctrl=%x)\n", info->device_name, xctrl)); in set_xctrl()
2956 spin_lock_irqsave(&info->lock, flags); in set_xctrl()
2957 info->xctrl = xctrl; in set_xctrl()
2958 wr_reg32(info, XCR, xctrl); in set_xctrl()
2959 spin_unlock_irqrestore(&info->lock, flags); in set_xctrl()
2972 static int set_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio) in set_gpio() argument
2978 if (!info->gpio_present) in set_gpio()
2983 info->device_name, gpio.state, gpio.smask, in set_gpio()
2986 spin_lock_irqsave(&info->port_array[0]->lock, flags); in set_gpio()
2988 data = rd_reg32(info, IODR); in set_gpio()
2991 wr_reg32(info, IODR, data); in set_gpio()
2994 data = rd_reg32(info, IOVR); in set_gpio()
2997 wr_reg32(info, IOVR, data); in set_gpio()
2999 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in set_gpio()
3007 static int get_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio) in get_gpio() argument
3010 if (!info->gpio_present) in get_gpio()
3012 gpio.state = rd_reg32(info, IOVR); in get_gpio()
3014 gpio.dir = rd_reg32(info, IODR); in get_gpio()
3019 info->device_name, gpio.state, gpio.dir)); in get_gpio()
3081 static int wait_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio) in wait_gpio() argument
3089 if (!info->gpio_present) in wait_gpio()
3094 info->device_name, gpio.state, gpio.smask)); in wait_gpio()
3096 if ((gpio.smask &= ~rd_reg32(info, IODR)) == 0) in wait_gpio()
3100 spin_lock_irqsave(&info->port_array[0]->lock, flags); in wait_gpio()
3102 wr_reg32(info, IOER, rd_reg32(info, IOER) | gpio.smask); in wait_gpio()
3104 state = rd_reg32(info, IOVR); in wait_gpio()
3111 add_cond_wait(&info->gpio_wait_q, &wait); in wait_gpio()
3112 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in wait_gpio()
3118 spin_lock_irqsave(&info->port_array[0]->lock, flags); in wait_gpio()
3119 remove_cond_wait(&info->gpio_wait_q, &wait); in wait_gpio()
3123 if (info->gpio_wait_q == NULL) in wait_gpio()
3124 wr_reg32(info, IOER, 0); in wait_gpio()
3125 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in wait_gpio()
3132 static int modem_input_wait(struct slgt_info *info,int arg) in modem_input_wait() argument
3140 spin_lock_irqsave(&info->lock,flags); in modem_input_wait()
3141 cprev = info->icount; in modem_input_wait()
3142 add_wait_queue(&info->status_event_wait_q, &wait); in modem_input_wait()
3144 spin_unlock_irqrestore(&info->lock,flags); in modem_input_wait()
3154 spin_lock_irqsave(&info->lock,flags); in modem_input_wait()
3155 cnow = info->icount; in modem_input_wait()
3157 spin_unlock_irqrestore(&info->lock,flags); in modem_input_wait()
3177 remove_wait_queue(&info->status_event_wait_q, &wait); in modem_input_wait()
3187 struct slgt_info *info = tty->driver_data; in tiocmget() local
3191 spin_lock_irqsave(&info->lock,flags); in tiocmget()
3192 get_signals(info); in tiocmget()
3193 spin_unlock_irqrestore(&info->lock,flags); in tiocmget()
3195 result = ((info->signals & SerialSignal_RTS) ? TIOCM_RTS:0) + in tiocmget()
3196 ((info->signals & SerialSignal_DTR) ? TIOCM_DTR:0) + in tiocmget()
3197 ((info->signals & SerialSignal_DCD) ? TIOCM_CAR:0) + in tiocmget()
3198 ((info->signals & SerialSignal_RI) ? TIOCM_RNG:0) + in tiocmget()
3199 ((info->signals & SerialSignal_DSR) ? TIOCM_DSR:0) + in tiocmget()
3200 ((info->signals & SerialSignal_CTS) ? TIOCM_CTS:0); in tiocmget()
3202 DBGINFO(("%s tiocmget value=%08X\n", info->device_name, result)); in tiocmget()
3216 struct slgt_info *info = tty->driver_data; in tiocmset() local
3219 DBGINFO(("%s tiocmset(%x,%x)\n", info->device_name, set, clear)); in tiocmset()
3222 info->signals |= SerialSignal_RTS; in tiocmset()
3224 info->signals |= SerialSignal_DTR; in tiocmset()
3226 info->signals &= ~SerialSignal_RTS; in tiocmset()
3228 info->signals &= ~SerialSignal_DTR; in tiocmset()
3230 spin_lock_irqsave(&info->lock,flags); in tiocmset()
3231 set_signals(info); in tiocmset()
3232 spin_unlock_irqrestore(&info->lock,flags); in tiocmset()
3239 struct slgt_info *info = container_of(port, struct slgt_info, port); in carrier_raised() local
3241 spin_lock_irqsave(&info->lock,flags); in carrier_raised()
3242 get_signals(info); in carrier_raised()
3243 spin_unlock_irqrestore(&info->lock,flags); in carrier_raised()
3244 return (info->signals & SerialSignal_DCD) ? 1 : 0; in carrier_raised()
3250 struct slgt_info *info = container_of(port, struct slgt_info, port); in dtr_rts() local
3252 spin_lock_irqsave(&info->lock,flags); in dtr_rts()
3254 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in dtr_rts()
3256 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in dtr_rts()
3257 set_signals(info); in dtr_rts()
3258 spin_unlock_irqrestore(&info->lock,flags); in dtr_rts()
3266 struct slgt_info *info) in block_til_ready() argument
3273 struct tty_port *port = &info->port; in block_til_ready()
3296 spin_lock_irqsave(&info->lock, flags); in block_til_ready()
3298 spin_unlock_irqrestore(&info->lock, flags); in block_til_ready()
3348 static int alloc_tmp_rbuf(struct slgt_info *info) in alloc_tmp_rbuf() argument
3350 info->tmp_rbuf = kmalloc(info->max_frame_size + 5, GFP_KERNEL); in alloc_tmp_rbuf()
3351 if (info->tmp_rbuf == NULL) in alloc_tmp_rbuf()
3354 info->flag_buf = kzalloc(info->max_frame_size + 5, GFP_KERNEL); in alloc_tmp_rbuf()
3355 if (!info->flag_buf) { in alloc_tmp_rbuf()
3356 kfree(info->tmp_rbuf); in alloc_tmp_rbuf()
3357 info->tmp_rbuf = NULL; in alloc_tmp_rbuf()
3363 static void free_tmp_rbuf(struct slgt_info *info) in free_tmp_rbuf() argument
3365 kfree(info->tmp_rbuf); in free_tmp_rbuf()
3366 info->tmp_rbuf = NULL; in free_tmp_rbuf()
3367 kfree(info->flag_buf); in free_tmp_rbuf()
3368 info->flag_buf = NULL; in free_tmp_rbuf()
3374 static int alloc_desc(struct slgt_info *info) in alloc_desc() argument
3380 info->bufs = pci_zalloc_consistent(info->pdev, DESC_LIST_SIZE, in alloc_desc()
3381 &info->bufs_dma_addr); in alloc_desc()
3382 if (info->bufs == NULL) in alloc_desc()
3385 info->rbufs = (struct slgt_desc*)info->bufs; in alloc_desc()
3386 info->tbufs = ((struct slgt_desc*)info->bufs) + info->rbuf_count; in alloc_desc()
3388 pbufs = (unsigned int)info->bufs_dma_addr; in alloc_desc()
3394 for (i=0; i < info->rbuf_count; i++) { in alloc_desc()
3396 info->rbufs[i].pdesc = pbufs + (i * sizeof(struct slgt_desc)); in alloc_desc()
3399 if (i == info->rbuf_count - 1) in alloc_desc()
3400 info->rbufs[i].next = cpu_to_le32(pbufs); in alloc_desc()
3402 info->rbufs[i].next = cpu_to_le32(pbufs + ((i+1) * sizeof(struct slgt_desc))); in alloc_desc()
3403 set_desc_count(info->rbufs[i], DMABUFSIZE); in alloc_desc()
3406 for (i=0; i < info->tbuf_count; i++) { in alloc_desc()
3408 info->tbufs[i].pdesc = pbufs + ((info->rbuf_count + i) * sizeof(struct slgt_desc)); in alloc_desc()
3411 if (i == info->tbuf_count - 1) in alloc_desc()
3412 info->tbufs[i].next = cpu_to_le32(pbufs + info->rbuf_count * sizeof(struct slgt_desc)); in alloc_desc()
3414 …info->tbufs[i].next = cpu_to_le32(pbufs + ((info->rbuf_count + i + 1) * sizeof(struct slgt_desc))); in alloc_desc()
3420 static void free_desc(struct slgt_info *info) in free_desc() argument
3422 if (info->bufs != NULL) { in free_desc()
3423 pci_free_consistent(info->pdev, DESC_LIST_SIZE, info->bufs, info->bufs_dma_addr); in free_desc()
3424 info->bufs = NULL; in free_desc()
3425 info->rbufs = NULL; in free_desc()
3426 info->tbufs = NULL; in free_desc()
3430 static int alloc_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count) in alloc_bufs() argument
3434 if ((bufs[i].buf = pci_alloc_consistent(info->pdev, DMABUFSIZE, &bufs[i].buf_dma_addr)) == NULL) in alloc_bufs()
3441 static void free_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count) in free_bufs() argument
3447 pci_free_consistent(info->pdev, DMABUFSIZE, bufs[i].buf, bufs[i].buf_dma_addr); in free_bufs()
3452 static int alloc_dma_bufs(struct slgt_info *info) in alloc_dma_bufs() argument
3454 info->rbuf_count = 32; in alloc_dma_bufs()
3455 info->tbuf_count = 32; in alloc_dma_bufs()
3457 if (alloc_desc(info) < 0 || in alloc_dma_bufs()
3458 alloc_bufs(info, info->rbufs, info->rbuf_count) < 0 || in alloc_dma_bufs()
3459 alloc_bufs(info, info->tbufs, info->tbuf_count) < 0 || in alloc_dma_bufs()
3460 alloc_tmp_rbuf(info) < 0) { in alloc_dma_bufs()
3461 DBGERR(("%s DMA buffer alloc fail\n", info->device_name)); in alloc_dma_bufs()
3464 reset_rbufs(info); in alloc_dma_bufs()
3468 static void free_dma_bufs(struct slgt_info *info) in free_dma_bufs() argument
3470 if (info->bufs) { in free_dma_bufs()
3471 free_bufs(info, info->rbufs, info->rbuf_count); in free_dma_bufs()
3472 free_bufs(info, info->tbufs, info->tbuf_count); in free_dma_bufs()
3473 free_desc(info); in free_dma_bufs()
3475 free_tmp_rbuf(info); in free_dma_bufs()
3478 static int claim_resources(struct slgt_info *info) in claim_resources() argument
3480 if (request_mem_region(info->phys_reg_addr, SLGT_REG_SIZE, "synclink_gt") == NULL) { in claim_resources()
3482 info->device_name, info->phys_reg_addr)); in claim_resources()
3483 info->init_error = DiagStatus_AddressConflict; in claim_resources()
3487 info->reg_addr_requested = true; in claim_resources()
3489 info->reg_addr = ioremap_nocache(info->phys_reg_addr, SLGT_REG_SIZE); in claim_resources()
3490 if (!info->reg_addr) { in claim_resources()
3492 info->device_name, info->phys_reg_addr)); in claim_resources()
3493 info->init_error = DiagStatus_CantAssignPciResources; in claim_resources()
3499 release_resources(info); in claim_resources()
3503 static void release_resources(struct slgt_info *info) in release_resources() argument
3505 if (info->irq_requested) { in release_resources()
3506 free_irq(info->irq_level, info); in release_resources()
3507 info->irq_requested = false; in release_resources()
3510 if (info->reg_addr_requested) { in release_resources()
3511 release_mem_region(info->phys_reg_addr, SLGT_REG_SIZE); in release_resources()
3512 info->reg_addr_requested = false; in release_resources()
3515 if (info->reg_addr) { in release_resources()
3516 iounmap(info->reg_addr); in release_resources()
3517 info->reg_addr = NULL; in release_resources()
3524 static void add_device(struct slgt_info *info) in add_device() argument
3528 info->next_device = NULL; in add_device()
3529 info->line = slgt_device_count; in add_device()
3530 sprintf(info->device_name, "%s%d", tty_dev_prefix, info->line); in add_device()
3532 if (info->line < MAX_DEVICES) { in add_device()
3533 if (maxframe[info->line]) in add_device()
3534 info->max_frame_size = maxframe[info->line]; in add_device()
3540 slgt_device_list = info; in add_device()
3545 current_dev->next_device = info; in add_device()
3548 if (info->max_frame_size < 4096) in add_device()
3549 info->max_frame_size = 4096; in add_device()
3550 else if (info->max_frame_size > 65535) in add_device()
3551 info->max_frame_size = 65535; in add_device()
3553 switch(info->pdev->device) { in add_device()
3565 info->params.mode = MGSL_MODE_ASYNC; in add_device()
3571 devstr, info->device_name, info->phys_reg_addr, in add_device()
3572 info->irq_level, info->max_frame_size); in add_device()
3575 hdlcdev_init(info); in add_device()
3589 struct slgt_info *info; in alloc_dev() local
3591 info = kzalloc(sizeof(struct slgt_info), GFP_KERNEL); in alloc_dev()
3593 if (!info) { in alloc_dev()
3597 tty_port_init(&info->port); in alloc_dev()
3598 info->port.ops = &slgt_port_ops; in alloc_dev()
3599 info->magic = MGSL_MAGIC; in alloc_dev()
3600 INIT_WORK(&info->task, bh_handler); in alloc_dev()
3601 info->max_frame_size = 4096; in alloc_dev()
3602 info->base_clock = 14745600; in alloc_dev()
3603 info->rbuf_fill_level = DMABUFSIZE; in alloc_dev()
3604 info->port.close_delay = 5*HZ/10; in alloc_dev()
3605 info->port.closing_wait = 30*HZ; in alloc_dev()
3606 init_waitqueue_head(&info->status_event_wait_q); in alloc_dev()
3607 init_waitqueue_head(&info->event_wait_q); in alloc_dev()
3608 spin_lock_init(&info->netlock); in alloc_dev()
3609 memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS)); in alloc_dev()
3610 info->idle_mode = HDLC_TXIDLE_FLAGS; in alloc_dev()
3611 info->adapter_num = adapter_num; in alloc_dev()
3612 info->port_num = port_num; in alloc_dev()
3614 setup_timer(&info->tx_timer, tx_timeout, (unsigned long)info); in alloc_dev()
3615 setup_timer(&info->rx_timer, rx_timeout, (unsigned long)info); in alloc_dev()
3618 info->pdev = pdev; in alloc_dev()
3619 info->irq_level = pdev->irq; in alloc_dev()
3620 info->phys_reg_addr = pci_resource_start(pdev,0); in alloc_dev()
3622 info->bus_type = MGSL_BUS_TYPE_PCI; in alloc_dev()
3623 info->irq_flags = IRQF_SHARED; in alloc_dev()
3625 info->init_error = -1; /* assume error, set to 0 on successful init */ in alloc_dev()
3628 return info; in alloc_dev()
3693 struct slgt_info *info = port_array[i]; in device_init() local
3694 tty_port_register_device(&info->port, serial_driver, info->line, in device_init()
3695 &info->pdev->dev); in device_init()
3744 struct slgt_info *info; in slgt_cleanup() local
3750 for (info=slgt_device_list ; info != NULL ; info=info->next_device) in slgt_cleanup()
3751 tty_unregister_device(serial_driver, info->line); in slgt_cleanup()
3759 info = slgt_device_list; in slgt_cleanup()
3760 while(info) { in slgt_cleanup()
3761 reset_port(info); in slgt_cleanup()
3762 info = info->next_device; in slgt_cleanup()
3766 info = slgt_device_list; in slgt_cleanup()
3767 while(info) { in slgt_cleanup()
3769 hdlcdev_exit(info); in slgt_cleanup()
3771 free_dma_bufs(info); in slgt_cleanup()
3772 free_tmp_rbuf(info); in slgt_cleanup()
3773 if (info->port_num == 0) in slgt_cleanup()
3774 release_resources(info); in slgt_cleanup()
3775 tmp = info; in slgt_cleanup()
3776 info = info->next_device; in slgt_cleanup()
3855 unsigned long reg_addr = ((unsigned long)info->reg_addr) + addr; \
3857 reg_addr += (info->port_num) * 32; \
3859 reg_addr += (info->port_num) * 16;
3861 static __u8 rd_reg8(struct slgt_info *info, unsigned int addr) in rd_reg8() argument
3867 static void wr_reg8(struct slgt_info *info, unsigned int addr, __u8 value) in wr_reg8() argument
3873 static __u16 rd_reg16(struct slgt_info *info, unsigned int addr) in rd_reg16() argument
3879 static void wr_reg16(struct slgt_info *info, unsigned int addr, __u16 value) in wr_reg16() argument
3885 static __u32 rd_reg32(struct slgt_info *info, unsigned int addr) in rd_reg32() argument
3891 static void wr_reg32(struct slgt_info *info, unsigned int addr, __u32 value) in wr_reg32() argument
3897 static void rdma_reset(struct slgt_info *info) in rdma_reset() argument
3902 wr_reg32(info, RDCSR, BIT1); in rdma_reset()
3906 if (!(rd_reg32(info, RDCSR) & BIT0)) in rdma_reset()
3910 static void tdma_reset(struct slgt_info *info) in tdma_reset() argument
3915 wr_reg32(info, TDCSR, BIT1); in tdma_reset()
3919 if (!(rd_reg32(info, TDCSR) & BIT0)) in tdma_reset()
3928 static void enable_loopback(struct slgt_info *info) in enable_loopback() argument
3931 wr_reg16(info, SCR, (unsigned short)(rd_reg16(info, SCR) | BIT2)); in enable_loopback()
3933 if (info->params.mode != MGSL_MODE_ASYNC) { in enable_loopback()
3942 wr_reg8(info, CCR, 0x49); in enable_loopback()
3945 if (info->params.clock_speed) in enable_loopback()
3946 set_rate(info, info->params.clock_speed); in enable_loopback()
3948 set_rate(info, 3686400); in enable_loopback()
3955 static void set_rate(struct slgt_info *info, u32 rate) in set_rate() argument
3958 unsigned int osc = info->base_clock; in set_rate()
3970 wr_reg16(info, BDR, (unsigned short)div); in set_rate()
3974 static void rx_stop(struct slgt_info *info) in rx_stop() argument
3979 val = rd_reg16(info, RCR) & ~BIT1; /* clear enable bit */ in rx_stop()
3980 wr_reg16(info, RCR, (unsigned short)(val | BIT2)); /* set reset bit */ in rx_stop()
3981 wr_reg16(info, RCR, val); /* clear reset bit */ in rx_stop()
3983 slgt_irq_off(info, IRQ_RXOVER + IRQ_RXDATA + IRQ_RXIDLE); in rx_stop()
3986 wr_reg16(info, SSR, IRQ_RXIDLE + IRQ_RXOVER); in rx_stop()
3988 rdma_reset(info); in rx_stop()
3990 info->rx_enabled = false; in rx_stop()
3991 info->rx_restart = false; in rx_stop()
3994 static void rx_start(struct slgt_info *info) in rx_start() argument
3998 slgt_irq_off(info, IRQ_RXOVER + IRQ_RXDATA); in rx_start()
4001 wr_reg16(info, SSR, IRQ_RXOVER); in rx_start()
4004 val = rd_reg16(info, RCR) & ~BIT1; /* clear enable bit */ in rx_start()
4005 wr_reg16(info, RCR, (unsigned short)(val | BIT2)); /* set reset bit */ in rx_start()
4006 wr_reg16(info, RCR, val); /* clear reset bit */ in rx_start()
4008 rdma_reset(info); in rx_start()
4009 reset_rbufs(info); in rx_start()
4011 if (info->rx_pio) { in rx_start()
4013 wr_reg16(info, SCR, (unsigned short)(rd_reg16(info, SCR) & ~BIT14)); in rx_start()
4014 slgt_irq_on(info, IRQ_RXDATA); in rx_start()
4015 if (info->params.mode == MGSL_MODE_ASYNC) { in rx_start()
4017 wr_reg32(info, RDCSR, BIT6); in rx_start()
4021 wr_reg16(info, SCR, (unsigned short)(rd_reg16(info, SCR) | BIT14)); in rx_start()
4023 wr_reg32(info, RDDAR, info->rbufs[0].pdesc); in rx_start()
4025 if (info->params.mode != MGSL_MODE_ASYNC) { in rx_start()
4027 wr_reg32(info, RDCSR, (BIT2 + BIT0)); in rx_start()
4030 wr_reg32(info, RDCSR, (BIT6 + BIT2 + BIT0)); in rx_start()
4034 slgt_irq_on(info, IRQ_RXOVER); in rx_start()
4037 wr_reg16(info, RCR, (unsigned short)(rd_reg16(info, RCR) | BIT1)); in rx_start()
4039 info->rx_restart = false; in rx_start()
4040 info->rx_enabled = true; in rx_start()
4043 static void tx_start(struct slgt_info *info) in tx_start() argument
4045 if (!info->tx_enabled) { in tx_start()
4046 wr_reg16(info, TCR, in tx_start()
4047 (unsigned short)((rd_reg16(info, TCR) | BIT1) & ~BIT2)); in tx_start()
4048 info->tx_enabled = true; in tx_start()
4051 if (desc_count(info->tbufs[info->tbuf_start])) { in tx_start()
4052 info->drop_rts_on_tx_done = false; in tx_start()
4054 if (info->params.mode != MGSL_MODE_ASYNC) { in tx_start()
4055 if (info->params.flags & HDLC_FLAG_AUTO_RTS) { in tx_start()
4056 get_signals(info); in tx_start()
4057 if (!(info->signals & SerialSignal_RTS)) { in tx_start()
4058 info->signals |= SerialSignal_RTS; in tx_start()
4059 set_signals(info); in tx_start()
4060 info->drop_rts_on_tx_done = true; in tx_start()
4064 slgt_irq_off(info, IRQ_TXDATA); in tx_start()
4065 slgt_irq_on(info, IRQ_TXUNDER + IRQ_TXIDLE); in tx_start()
4067 wr_reg16(info, SSR, (unsigned short)(IRQ_TXIDLE + IRQ_TXUNDER)); in tx_start()
4069 slgt_irq_off(info, IRQ_TXDATA); in tx_start()
4070 slgt_irq_on(info, IRQ_TXIDLE); in tx_start()
4072 wr_reg16(info, SSR, IRQ_TXIDLE); in tx_start()
4075 wr_reg32(info, TDDAR, info->tbufs[info->tbuf_start].pdesc); in tx_start()
4076 wr_reg32(info, TDCSR, BIT2 + BIT0); in tx_start()
4077 info->tx_active = true; in tx_start()
4081 static void tx_stop(struct slgt_info *info) in tx_stop() argument
4085 del_timer(&info->tx_timer); in tx_stop()
4087 tdma_reset(info); in tx_stop()
4090 val = rd_reg16(info, TCR) & ~BIT1; /* clear enable bit */ in tx_stop()
4091 wr_reg16(info, TCR, (unsigned short)(val | BIT2)); /* set reset bit */ in tx_stop()
4093 slgt_irq_off(info, IRQ_TXDATA + IRQ_TXIDLE + IRQ_TXUNDER); in tx_stop()
4096 wr_reg16(info, SSR, (unsigned short)(IRQ_TXIDLE + IRQ_TXUNDER)); in tx_stop()
4098 reset_tbufs(info); in tx_stop()
4100 info->tx_enabled = false; in tx_stop()
4101 info->tx_active = false; in tx_stop()
4104 static void reset_port(struct slgt_info *info) in reset_port() argument
4106 if (!info->reg_addr) in reset_port()
4109 tx_stop(info); in reset_port()
4110 rx_stop(info); in reset_port()
4112 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in reset_port()
4113 set_signals(info); in reset_port()
4115 slgt_irq_off(info, IRQ_ALL | IRQ_MASTER); in reset_port()
4118 static void reset_adapter(struct slgt_info *info) in reset_adapter() argument
4121 for (i=0; i < info->port_count; ++i) { in reset_adapter()
4122 if (info->port_array[i]) in reset_adapter()
4123 reset_port(info->port_array[i]); in reset_adapter()
4127 static void async_mode(struct slgt_info *info) in async_mode() argument
4131 slgt_irq_off(info, IRQ_ALL | IRQ_MASTER); in async_mode()
4132 tx_stop(info); in async_mode()
4133 rx_stop(info); in async_mode()
4155 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in async_mode()
4158 if (info->params.parity != ASYNC_PARITY_NONE) { in async_mode()
4160 if (info->params.parity == ASYNC_PARITY_ODD) in async_mode()
4164 switch (info->params.data_bits) in async_mode()
4171 if (info->params.stop_bits != 1) in async_mode()
4174 if (info->params.flags & HDLC_FLAG_AUTO_CTS) in async_mode()
4177 wr_reg16(info, TCR, val); in async_mode()
4198 if (info->params.parity != ASYNC_PARITY_NONE) { in async_mode()
4200 if (info->params.parity == ASYNC_PARITY_ODD) in async_mode()
4204 switch (info->params.data_bits) in async_mode()
4211 if (info->params.flags & HDLC_FLAG_AUTO_DCD) in async_mode()
4214 wr_reg16(info, RCR, val); in async_mode()
4225 wr_reg8(info, CCR, 0x69); in async_mode()
4227 msc_set_vcr(info); in async_mode()
4250 if ((rd_reg32(info, JCR) & BIT8) && info->params.data_rate && in async_mode()
4251 ((info->base_clock < (info->params.data_rate * 16)) || in async_mode()
4252 (info->base_clock % (info->params.data_rate * 16)))) { in async_mode()
4255 set_rate(info, info->params.data_rate * 8); in async_mode()
4258 set_rate(info, info->params.data_rate * 16); in async_mode()
4260 wr_reg16(info, SCR, val); in async_mode()
4262 slgt_irq_on(info, IRQ_RXBREAK | IRQ_RXOVER); in async_mode()
4264 if (info->params.loopback) in async_mode()
4265 enable_loopback(info); in async_mode()
4268 static void sync_mode(struct slgt_info *info) in sync_mode() argument
4272 slgt_irq_off(info, IRQ_ALL | IRQ_MASTER); in sync_mode()
4273 tx_stop(info); in sync_mode()
4274 rx_stop(info); in sync_mode()
4298 switch(info->params.mode) { in sync_mode()
4306 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in sync_mode()
4309 switch(info->params.encoding) in sync_mode()
4320 switch (info->params.crc_type & HDLC_CRC_MASK) in sync_mode()
4326 if (info->params.preamble != HDLC_PREAMBLE_PATTERN_NONE) in sync_mode()
4329 switch (info->params.preamble_length) in sync_mode()
4336 if (info->params.flags & HDLC_FLAG_AUTO_CTS) in sync_mode()
4339 wr_reg16(info, TCR, val); in sync_mode()
4343 switch (info->params.preamble) in sync_mode()
4352 wr_reg8(info, TPR, (unsigned char)val); in sync_mode()
4373 switch(info->params.mode) { in sync_mode()
4382 switch(info->params.encoding) in sync_mode()
4393 switch (info->params.crc_type & HDLC_CRC_MASK) in sync_mode()
4399 if (info->params.flags & HDLC_FLAG_AUTO_DCD) in sync_mode()
4402 wr_reg16(info, RCR, val); in sync_mode()
4413 if (info->params.flags & HDLC_FLAG_TXC_BRG) in sync_mode()
4418 if (info->params.flags & HDLC_FLAG_RXC_DPLL) in sync_mode()
4423 else if (info->params.flags & HDLC_FLAG_TXC_DPLL) in sync_mode()
4425 else if (info->params.flags & HDLC_FLAG_TXC_RXCPIN) in sync_mode()
4428 if (info->params.flags & HDLC_FLAG_RXC_BRG) in sync_mode()
4430 else if (info->params.flags & HDLC_FLAG_RXC_DPLL) in sync_mode()
4432 else if (info->params.flags & HDLC_FLAG_RXC_TXCPIN) in sync_mode()
4435 if (info->params.clock_speed) in sync_mode()
4438 wr_reg8(info, CCR, (unsigned char)val); in sync_mode()
4440 if (info->params.flags & (HDLC_FLAG_TXC_DPLL + HDLC_FLAG_RXC_DPLL)) in sync_mode()
4443 switch(info->params.encoding) in sync_mode()
4453 wr_reg16(info, RCR, (unsigned short)(rd_reg16(info, RCR) | val)); in sync_mode()
4456 set_rate(info, info->params.clock_speed * 16); in sync_mode()
4459 set_rate(info, info->params.clock_speed); in sync_mode()
4461 tx_set_idle(info); in sync_mode()
4463 msc_set_vcr(info); in sync_mode()
4484 wr_reg16(info, SCR, BIT15 + BIT14 + BIT0); in sync_mode()
4486 if (info->params.loopback) in sync_mode()
4487 enable_loopback(info); in sync_mode()
4493 static void tx_set_idle(struct slgt_info *info) in tx_set_idle() argument
4501 tcr = rd_reg16(info, TCR); in tx_set_idle()
4502 if (info->idle_mode & HDLC_TXIDLE_CUSTOM_16) { in tx_set_idle()
4506 wr_reg8(info, TPR, (unsigned char)((info->idle_mode >> 8) & 0xff)); in tx_set_idle()
4511 wr_reg16(info, TCR, tcr); in tx_set_idle()
4513 if (info->idle_mode & (HDLC_TXIDLE_CUSTOM_8 | HDLC_TXIDLE_CUSTOM_16)) { in tx_set_idle()
4515 val = (unsigned char)(info->idle_mode & 0xff); in tx_set_idle()
4518 switch(info->idle_mode) in tx_set_idle()
4529 wr_reg8(info, TIR, val); in tx_set_idle()
4535 static void get_signals(struct slgt_info *info) in get_signals() argument
4537 unsigned short status = rd_reg16(info, SSR); in get_signals()
4540 info->signals &= SerialSignal_RTS | SerialSignal_DTR; in get_signals()
4543 info->signals |= SerialSignal_DSR; in get_signals()
4545 info->signals |= SerialSignal_CTS; in get_signals()
4547 info->signals |= SerialSignal_DCD; in get_signals()
4549 info->signals |= SerialSignal_RI; in get_signals()
4555 static void msc_set_vcr(struct slgt_info *info) in msc_set_vcr() argument
4568 switch(info->if_mode & MGSL_INTERFACE_MASK) in msc_set_vcr()
4581 if (info->if_mode & MGSL_INTERFACE_MSB_FIRST) in msc_set_vcr()
4583 if (info->signals & SerialSignal_DTR) in msc_set_vcr()
4585 if (info->signals & SerialSignal_RTS) in msc_set_vcr()
4587 if (info->if_mode & MGSL_INTERFACE_LL) in msc_set_vcr()
4589 if (info->if_mode & MGSL_INTERFACE_RL) in msc_set_vcr()
4591 wr_reg8(info, VCR, val); in msc_set_vcr()
4597 static void set_signals(struct slgt_info *info) in set_signals() argument
4599 unsigned char val = rd_reg8(info, VCR); in set_signals()
4600 if (info->signals & SerialSignal_DTR) in set_signals()
4604 if (info->signals & SerialSignal_RTS) in set_signals()
4608 wr_reg8(info, VCR, val); in set_signals()
4614 static void free_rbufs(struct slgt_info *info, unsigned int i, unsigned int last) in free_rbufs() argument
4620 info->rbufs[i].status = 0; in free_rbufs()
4621 set_desc_count(info->rbufs[i], info->rbuf_fill_level); in free_rbufs()
4624 if (++i == info->rbuf_count) in free_rbufs()
4627 info->rbuf_current = i; in free_rbufs()
4633 static void reset_rbufs(struct slgt_info *info) in reset_rbufs() argument
4635 free_rbufs(info, 0, info->rbuf_count - 1); in reset_rbufs()
4636 info->rbuf_fill_index = 0; in reset_rbufs()
4637 info->rbuf_fill_count = 0; in reset_rbufs()
4645 static bool rx_get_frame(struct slgt_info *info) in rx_get_frame() argument
4651 struct tty_struct *tty = info->port.tty; in rx_get_frame()
4655 switch (info->params.crc_type & HDLC_CRC_MASK) { in rx_get_frame()
4664 start = end = info->rbuf_current; in rx_get_frame()
4667 if (!desc_complete(info->rbufs[end])) in rx_get_frame()
4670 if (framesize == 0 && info->params.addr_filter != 0xff) in rx_get_frame()
4671 addr_field = info->rbufs[end].buf[0]; in rx_get_frame()
4673 framesize += desc_count(info->rbufs[end]); in rx_get_frame()
4675 if (desc_eof(info->rbufs[end])) in rx_get_frame()
4678 if (++end == info->rbuf_count) in rx_get_frame()
4681 if (end == info->rbuf_current) { in rx_get_frame()
4682 if (info->rx_enabled){ in rx_get_frame()
4683 spin_lock_irqsave(&info->lock,flags); in rx_get_frame()
4684 rx_start(info); in rx_get_frame()
4685 spin_unlock_irqrestore(&info->lock,flags); in rx_get_frame()
4700 status = desc_status(info->rbufs[end]); in rx_get_frame()
4703 if ((info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_NONE) in rx_get_frame()
4707 (addr_field != 0xff && addr_field != info->params.addr_filter)) { in rx_get_frame()
4708 free_rbufs(info, start, end); in rx_get_frame()
4713 info->icount.rxshort++; in rx_get_frame()
4716 info->icount.rxcrc++; in rx_get_frame()
4717 if (!(info->params.crc_type & HDLC_CRC_RETURN_EX)) in rx_get_frame()
4723 info->netdev->stats.rx_errors++; in rx_get_frame()
4724 info->netdev->stats.rx_frame_errors++; in rx_get_frame()
4729 info->device_name, status, framesize)); in rx_get_frame()
4730 DBGDATA(info, info->rbufs[start].buf, min_t(int, framesize, info->rbuf_fill_level), "rx"); in rx_get_frame()
4733 if (!(info->params.crc_type & HDLC_CRC_RETURN_EX)) { in rx_get_frame()
4738 if (framesize > info->max_frame_size + crc_size) in rx_get_frame()
4739 info->icount.rxlong++; in rx_get_frame()
4744 unsigned char *p = info->tmp_rbuf; in rx_get_frame()
4745 info->tmp_rbuf_count = framesize; in rx_get_frame()
4747 info->icount.rxok++; in rx_get_frame()
4750 int partial_count = min_t(int, copy_count, info->rbuf_fill_level); in rx_get_frame()
4751 memcpy(p, info->rbufs[i].buf, partial_count); in rx_get_frame()
4754 if (++i == info->rbuf_count) in rx_get_frame()
4758 if (info->params.crc_type & HDLC_CRC_RETURN_EX) { in rx_get_frame()
4764 if (info->netcount) in rx_get_frame()
4765 hdlcdev_rx(info,info->tmp_rbuf, framesize); in rx_get_frame()
4768 ldisc_receive_buf(tty, info->tmp_rbuf, info->flag_buf, framesize); in rx_get_frame()
4771 free_rbufs(info, start, end); in rx_get_frame()
4782 static bool rx_get_buf(struct slgt_info *info) in rx_get_buf() argument
4784 unsigned int i = info->rbuf_current; in rx_get_buf()
4787 if (!desc_complete(info->rbufs[i])) in rx_get_buf()
4789 count = desc_count(info->rbufs[i]); in rx_get_buf()
4790 switch(info->params.mode) { in rx_get_buf()
4795 if (desc_residue(info->rbufs[i])) in rx_get_buf()
4799 DBGDATA(info, info->rbufs[i].buf, count, "rx"); in rx_get_buf()
4802 ldisc_receive_buf(info->port.tty, info->rbufs[i].buf, in rx_get_buf()
4803 info->flag_buf, count); in rx_get_buf()
4804 free_rbufs(info, i, i); in rx_get_buf()
4808 static void reset_tbufs(struct slgt_info *info) in reset_tbufs() argument
4811 info->tbuf_current = 0; in reset_tbufs()
4812 for (i=0 ; i < info->tbuf_count ; i++) { in reset_tbufs()
4813 info->tbufs[i].status = 0; in reset_tbufs()
4814 info->tbufs[i].count = 0; in reset_tbufs()
4821 static unsigned int free_tbuf_count(struct slgt_info *info) in free_tbuf_count() argument
4824 unsigned int i = info->tbuf_current; in free_tbuf_count()
4828 if (desc_count(info->tbufs[i])) in free_tbuf_count()
4831 if (++i == info->tbuf_count) in free_tbuf_count()
4833 } while (i != info->tbuf_current); in free_tbuf_count()
4836 if (count && (rd_reg32(info, TDCSR) & BIT0)) in free_tbuf_count()
4846 static unsigned int tbuf_bytes(struct slgt_info *info) in tbuf_bytes() argument
4849 unsigned int i = info->tbuf_current; in tbuf_bytes()
4866 count = desc_count(info->tbufs[i]); in tbuf_bytes()
4870 active_buf_count = info->tbufs[i].buf_count; in tbuf_bytes()
4871 if (++i == info->tbuf_count) in tbuf_bytes()
4873 } while (i != info->tbuf_current); in tbuf_bytes()
4876 reg_value = rd_reg32(info, TDCSR); in tbuf_bytes()
4886 if (info->tx_active) in tbuf_bytes()
4896 static bool tx_load(struct slgt_info *info, const char *buf, unsigned int size) in tx_load() argument
4903 if (DIV_ROUND_UP(size, DMABUFSIZE) > free_tbuf_count(info)) in tx_load()
4906 DBGDATA(info, buf, size, "tx"); in tx_load()
4919 info->tbuf_start = i = info->tbuf_current; in tx_load()
4922 d = &info->tbufs[i]; in tx_load()
4934 if ((!size && info->params.mode == MGSL_MODE_HDLC) || in tx_load()
4935 info->params.mode == MGSL_MODE_RAW) in tx_load()
4941 if (i != info->tbuf_start) in tx_load()
4945 if (++i == info->tbuf_count) in tx_load()
4949 info->tbuf_current = i; in tx_load()
4952 d = &info->tbufs[info->tbuf_start]; in tx_load()
4956 if (!info->tx_active) in tx_load()
4957 tx_start(info); in tx_load()
4958 update_tx_timer(info); in tx_load()
4963 static int register_test(struct slgt_info *info) in register_test() argument
4972 wr_reg16(info, TIR, patterns[i]); in register_test()
4973 wr_reg16(info, BDR, patterns[(i+1)%count]); in register_test()
4974 if ((rd_reg16(info, TIR) != patterns[i]) || in register_test()
4975 (rd_reg16(info, BDR) != patterns[(i+1)%count])) { in register_test()
4980 info->gpio_present = (rd_reg32(info, JCR) & BIT5) ? 1 : 0; in register_test()
4981 info->init_error = rc ? 0 : DiagStatus_AddressFailure; in register_test()
4985 static int irq_test(struct slgt_info *info) in irq_test() argument
4989 struct tty_struct *oldtty = info->port.tty; in irq_test()
4990 u32 speed = info->params.data_rate; in irq_test()
4992 info->params.data_rate = 921600; in irq_test()
4993 info->port.tty = NULL; in irq_test()
4995 spin_lock_irqsave(&info->lock, flags); in irq_test()
4996 async_mode(info); in irq_test()
4997 slgt_irq_on(info, IRQ_TXIDLE); in irq_test()
5000 wr_reg16(info, TCR, in irq_test()
5001 (unsigned short)(rd_reg16(info, TCR) | BIT1)); in irq_test()
5004 wr_reg16(info, TDR, 0); in irq_test()
5007 info->init_error = DiagStatus_IrqFailure; in irq_test()
5008 info->irq_occurred = false; in irq_test()
5010 spin_unlock_irqrestore(&info->lock, flags); in irq_test()
5013 while(timeout-- && !info->irq_occurred) in irq_test()
5016 spin_lock_irqsave(&info->lock,flags); in irq_test()
5017 reset_port(info); in irq_test()
5018 spin_unlock_irqrestore(&info->lock,flags); in irq_test()
5020 info->params.data_rate = speed; in irq_test()
5021 info->port.tty = oldtty; in irq_test()
5023 info->init_error = info->irq_occurred ? 0 : DiagStatus_IrqFailure; in irq_test()
5024 return info->irq_occurred ? 0 : -ENODEV; in irq_test()
5027 static int loopback_test_rx(struct slgt_info *info) in loopback_test_rx() argument
5032 if (desc_complete(info->rbufs[0])) { in loopback_test_rx()
5033 count = desc_count(info->rbufs[0]); in loopback_test_rx()
5034 src = info->rbufs[0].buf; in loopback_test_rx()
5035 dest = info->tmp_rbuf; in loopback_test_rx()
5042 info->tmp_rbuf_count++; in loopback_test_rx()
5045 DBGDATA(info, info->tmp_rbuf, info->tmp_rbuf_count, "rx"); in loopback_test_rx()
5051 static int loopback_test(struct slgt_info *info) in loopback_test() argument
5061 struct tty_struct *oldtty = info->port.tty; in loopback_test()
5064 memcpy(¶ms, &info->params, sizeof(params)); in loopback_test()
5066 info->params.mode = MGSL_MODE_ASYNC; in loopback_test()
5067 info->params.data_rate = 921600; in loopback_test()
5068 info->params.loopback = 1; in loopback_test()
5069 info->port.tty = NULL; in loopback_test()
5075 info->tmp_rbuf_count = 0; in loopback_test()
5076 memset(info->tmp_rbuf, 0, TESTFRAMESIZE); in loopback_test()
5079 spin_lock_irqsave(&info->lock,flags); in loopback_test()
5080 async_mode(info); in loopback_test()
5081 rx_start(info); in loopback_test()
5082 tx_load(info, buf, count); in loopback_test()
5083 spin_unlock_irqrestore(&info->lock, flags); in loopback_test()
5088 if (loopback_test_rx(info)) { in loopback_test()
5095 if (!rc && (info->tmp_rbuf_count != count || in loopback_test()
5096 memcmp(buf, info->tmp_rbuf, count))) { in loopback_test()
5100 spin_lock_irqsave(&info->lock,flags); in loopback_test()
5101 reset_adapter(info); in loopback_test()
5102 spin_unlock_irqrestore(&info->lock,flags); in loopback_test()
5104 memcpy(&info->params, ¶ms, sizeof(info->params)); in loopback_test()
5105 info->port.tty = oldtty; in loopback_test()
5107 info->init_error = rc ? DiagStatus_DmaFailure : 0; in loopback_test()
5111 static int adapter_test(struct slgt_info *info) in adapter_test() argument
5113 DBGINFO(("testing %s\n", info->device_name)); in adapter_test()
5114 if (register_test(info) < 0) { in adapter_test()
5116 info->device_name, info->phys_reg_addr); in adapter_test()
5117 } else if (irq_test(info) < 0) { in adapter_test()
5119 info->device_name, info->irq_level); in adapter_test()
5120 } else if (loopback_test(info) < 0) { in adapter_test()
5121 printk("loopback test failure %s\n", info->device_name); in adapter_test()
5123 return info->init_error; in adapter_test()
5131 struct slgt_info *info = (struct slgt_info*)context; in tx_timeout() local
5134 DBGINFO(("%s tx_timeout\n", info->device_name)); in tx_timeout()
5135 if(info->tx_active && info->params.mode == MGSL_MODE_HDLC) { in tx_timeout()
5136 info->icount.txtimeout++; in tx_timeout()
5138 spin_lock_irqsave(&info->lock,flags); in tx_timeout()
5139 tx_stop(info); in tx_timeout()
5140 spin_unlock_irqrestore(&info->lock,flags); in tx_timeout()
5143 if (info->netcount) in tx_timeout()
5144 hdlcdev_tx_done(info); in tx_timeout()
5147 bh_transmit(info); in tx_timeout()
5155 struct slgt_info *info = (struct slgt_info*)context; in rx_timeout() local
5158 DBGINFO(("%s rx_timeout\n", info->device_name)); in rx_timeout()
5159 spin_lock_irqsave(&info->lock, flags); in rx_timeout()
5160 info->pending_bh |= BH_RECEIVE; in rx_timeout()
5161 spin_unlock_irqrestore(&info->lock, flags); in rx_timeout()
5162 bh_handler(&info->task); in rx_timeout()