Lines Matching refs:info
41 #define DBGDATA(info, buf, size, label) if (debug_level >= DEBUG_LEVEL_DATA) trace_block((info), (b… argument
395 #define slgt_irq_on(info, mask) \ argument
396 wr_reg16((info), SCR, (unsigned short)(rd_reg16((info), SCR) | (mask)))
397 #define slgt_irq_off(info, mask) \ argument
398 wr_reg16((info), SCR, (unsigned short)(rd_reg16((info), SCR) & ~(mask)))
400 static __u8 rd_reg8(struct slgt_info *info, unsigned int addr);
401 static void wr_reg8(struct slgt_info *info, unsigned int addr, __u8 value);
402 static __u16 rd_reg16(struct slgt_info *info, unsigned int addr);
403 static void wr_reg16(struct slgt_info *info, unsigned int addr, __u16 value);
404 static __u32 rd_reg32(struct slgt_info *info, unsigned int addr);
405 static void wr_reg32(struct slgt_info *info, unsigned int addr, __u32 value);
407 static void msc_set_vcr(struct slgt_info *info);
409 static int startup(struct slgt_info *info);
410 static int block_til_ready(struct tty_struct *tty, struct file * filp,struct slgt_info *info);
411 static void shutdown(struct slgt_info *info);
412 static void program_hw(struct slgt_info *info);
413 static void change_params(struct slgt_info *info);
415 static int adapter_test(struct slgt_info *info);
417 static void reset_port(struct slgt_info *info);
418 static void async_mode(struct slgt_info *info);
419 static void sync_mode(struct slgt_info *info);
421 static void rx_stop(struct slgt_info *info);
422 static void rx_start(struct slgt_info *info);
423 static void reset_rbufs(struct slgt_info *info);
424 static void free_rbufs(struct slgt_info *info, unsigned int first, unsigned int last);
425 static bool rx_get_frame(struct slgt_info *info);
426 static bool rx_get_buf(struct slgt_info *info);
428 static void tx_start(struct slgt_info *info);
429 static void tx_stop(struct slgt_info *info);
430 static void tx_set_idle(struct slgt_info *info);
431 static unsigned int tbuf_bytes(struct slgt_info *info);
432 static void reset_tbufs(struct slgt_info *info);
433 static void tdma_reset(struct slgt_info *info);
434 static bool tx_load(struct slgt_info *info, const u8 *buf, unsigned int count);
436 static void get_gtsignals(struct slgt_info *info);
437 static void set_gtsignals(struct slgt_info *info);
438 static void set_rate(struct slgt_info *info, u32 data_rate);
440 static void bh_transmit(struct slgt_info *info);
441 static void isr_txeom(struct slgt_info *info, unsigned short status);
449 static int get_stats(struct slgt_info *info, struct mgsl_icount __user *user_icount);
450 static int get_params(struct slgt_info *info, MGSL_PARAMS __user *params);
451 static int set_params(struct slgt_info *info, MGSL_PARAMS __user *params);
452 static int get_txidle(struct slgt_info *info, int __user *idle_mode);
453 static int set_txidle(struct slgt_info *info, int idle_mode);
454 static int tx_enable(struct slgt_info *info, int enable);
455 static int tx_abort(struct slgt_info *info);
456 static int rx_enable(struct slgt_info *info, int enable);
457 static int modem_input_wait(struct slgt_info *info,int arg);
458 static int wait_mgsl_event(struct slgt_info *info, int __user *mask_ptr);
459 static int get_interface(struct slgt_info *info, int __user *if_mode);
460 static int set_interface(struct slgt_info *info, int if_mode);
461 static int set_gpio(struct slgt_info *info, struct gpio_desc __user *gpio);
462 static int get_gpio(struct slgt_info *info, struct gpio_desc __user *gpio);
463 static int wait_gpio(struct slgt_info *info, struct gpio_desc __user *gpio);
464 static int get_xsync(struct slgt_info *info, int __user *if_mode);
465 static int set_xsync(struct slgt_info *info, int if_mode);
466 static int get_xctrl(struct slgt_info *info, int __user *if_mode);
467 static int set_xctrl(struct slgt_info *info, int if_mode);
472 static void release_resources(struct slgt_info *info);
491 static void trace_block(struct slgt_info *info, const char *data, int count, const char *label) in trace_block() argument
495 printk("%s %s data:\n",info->device_name, label); in trace_block()
514 #define DBGDATA(info, buf, size, label) argument
518 static void dump_tbufs(struct slgt_info *info) in dump_tbufs() argument
521 printk("tbuf_current=%d\n", info->tbuf_current); in dump_tbufs()
522 for (i=0 ; i < info->tbuf_count ; i++) { in dump_tbufs()
524 i, le16_to_cpu(info->tbufs[i].count), le16_to_cpu(info->tbufs[i].status)); in dump_tbufs()
528 #define DBGTBUF(info) argument
532 static void dump_rbufs(struct slgt_info *info) in dump_rbufs() argument
535 printk("rbuf_current=%d\n", info->rbuf_current); in dump_rbufs()
536 for (i=0 ; i < info->rbuf_count ; i++) { in dump_rbufs()
538 i, le16_to_cpu(info->rbufs[i].count), le16_to_cpu(info->rbufs[i].status)); in dump_rbufs()
542 #define DBGRBUF(info) argument
545 static inline int sanity_check(struct slgt_info *info, char *devname, const char *name) in sanity_check() argument
548 if (!info) { in sanity_check()
553 if (!info) in sanity_check()
585 struct slgt_info *info; in open() local
595 info = slgt_device_list; in open()
596 while(info && info->line != line) in open()
597 info = info->next_device; in open()
598 if (sanity_check(info, tty->name, "open")) in open()
600 if (info->init_error) { in open()
601 DBGERR(("%s init error=%d\n", info->device_name, info->init_error)); in open()
605 tty->driver_data = info; in open()
606 info->port.tty = tty; in open()
608 DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->port.count)); in open()
610 mutex_lock(&info->port.mutex); in open()
612 spin_lock_irqsave(&info->netlock, flags); in open()
613 if (info->netcount) { in open()
615 spin_unlock_irqrestore(&info->netlock, flags); in open()
616 mutex_unlock(&info->port.mutex); in open()
619 info->port.count++; in open()
620 spin_unlock_irqrestore(&info->netlock, flags); in open()
622 if (info->port.count == 1) { in open()
624 retval = startup(info); in open()
626 mutex_unlock(&info->port.mutex); in open()
630 mutex_unlock(&info->port.mutex); in open()
631 retval = block_til_ready(tty, filp, info); in open()
633 DBGINFO(("%s block_til_ready rc=%d\n", info->device_name, retval)); in open()
642 info->port.tty = NULL; /* tty layer will release tty struct */ in open()
643 if(info->port.count) in open()
644 info->port.count--; in open()
647 DBGINFO(("%s open rc=%d\n", info->device_name, retval)); in open()
653 struct slgt_info *info = tty->driver_data; in close() local
655 if (sanity_check(info, tty->name, "close")) in close()
657 DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count)); in close()
659 if (tty_port_close_start(&info->port, tty, filp) == 0) in close()
662 mutex_lock(&info->port.mutex); in close()
663 if (tty_port_initialized(&info->port)) in close()
664 wait_until_sent(tty, info->timeout); in close()
668 shutdown(info); in close()
669 mutex_unlock(&info->port.mutex); in close()
671 tty_port_close_end(&info->port, tty); in close()
672 info->port.tty = NULL; in close()
674 DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count)); in close()
679 struct slgt_info *info = tty->driver_data; in hangup() local
682 if (sanity_check(info, tty->name, "hangup")) in hangup()
684 DBGINFO(("%s hangup\n", info->device_name)); in hangup()
688 mutex_lock(&info->port.mutex); in hangup()
689 shutdown(info); in hangup()
691 spin_lock_irqsave(&info->port.lock, flags); in hangup()
692 info->port.count = 0; in hangup()
693 info->port.tty = NULL; in hangup()
694 spin_unlock_irqrestore(&info->port.lock, flags); in hangup()
695 tty_port_set_active(&info->port, false); in hangup()
696 mutex_unlock(&info->port.mutex); in hangup()
698 wake_up_interruptible(&info->port.open_wait); in hangup()
704 struct slgt_info *info = tty->driver_data; in set_termios() local
709 change_params(info); in set_termios()
713 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in set_termios()
714 spin_lock_irqsave(&info->lock,flags); in set_termios()
715 set_gtsignals(info); in set_termios()
716 spin_unlock_irqrestore(&info->lock,flags); in set_termios()
721 info->signals |= SerialSignal_DTR; in set_termios()
723 info->signals |= SerialSignal_RTS; in set_termios()
724 spin_lock_irqsave(&info->lock,flags); in set_termios()
725 set_gtsignals(info); in set_termios()
726 spin_unlock_irqrestore(&info->lock,flags); in set_termios()
736 static void update_tx_timer(struct slgt_info *info) in update_tx_timer() argument
742 if (info->params.mode == MGSL_MODE_HDLC) { in update_tx_timer()
743 int timeout = (tbuf_bytes(info) * 7) + 1000; in update_tx_timer()
744 mod_timer(&info->tx_timer, jiffies + msecs_to_jiffies(timeout)); in update_tx_timer()
751 struct slgt_info *info = tty->driver_data; in write() local
754 if (sanity_check(info, tty->name, "write")) in write()
757 DBGINFO(("%s write count=%zu\n", info->device_name, count)); in write()
759 if (!info->tx_buf || (count > info->max_frame_size)) in write()
765 spin_lock_irqsave(&info->lock, flags); in write()
767 if (info->tx_count) { in write()
769 if (!tx_load(info, info->tx_buf, info->tx_count)) in write()
771 info->tx_count = 0; in write()
774 if (tx_load(info, buf, count)) in write()
778 spin_unlock_irqrestore(&info->lock, flags); in write()
779 DBGINFO(("%s write rc=%d\n", info->device_name, ret)); in write()
785 struct slgt_info *info = tty->driver_data; in put_char() local
789 if (sanity_check(info, tty->name, "put_char")) in put_char()
791 DBGINFO(("%s put_char(%u)\n", info->device_name, ch)); in put_char()
792 if (!info->tx_buf) in put_char()
794 spin_lock_irqsave(&info->lock,flags); in put_char()
795 if (info->tx_count < info->max_frame_size) { in put_char()
796 info->tx_buf[info->tx_count++] = ch; in put_char()
799 spin_unlock_irqrestore(&info->lock,flags); in put_char()
805 struct slgt_info *info = tty->driver_data; in send_xchar() local
808 if (sanity_check(info, tty->name, "send_xchar")) in send_xchar()
810 DBGINFO(("%s send_xchar(%d)\n", info->device_name, ch)); in send_xchar()
811 info->x_char = ch; in send_xchar()
813 spin_lock_irqsave(&info->lock,flags); in send_xchar()
814 if (!info->tx_enabled) in send_xchar()
815 tx_start(info); in send_xchar()
816 spin_unlock_irqrestore(&info->lock,flags); in send_xchar()
822 struct slgt_info *info = tty->driver_data; in wait_until_sent() local
825 if (!info ) in wait_until_sent()
827 if (sanity_check(info, tty->name, "wait_until_sent")) in wait_until_sent()
829 DBGINFO(("%s wait_until_sent entry\n", info->device_name)); in wait_until_sent()
830 if (!tty_port_initialized(&info->port)) in wait_until_sent()
841 if (info->params.data_rate) { in wait_until_sent()
842 char_time = info->timeout/(32 * 5); in wait_until_sent()
851 while (info->tx_active) { in wait_until_sent()
859 DBGINFO(("%s wait_until_sent exit\n", info->device_name)); in wait_until_sent()
864 struct slgt_info *info = tty->driver_data; in write_room() local
867 if (sanity_check(info, tty->name, "write_room")) in write_room()
869 ret = (info->tx_active) ? 0 : HDLC_MAX_FRAME_SIZE; in write_room()
870 DBGINFO(("%s write_room=%u\n", info->device_name, ret)); in write_room()
876 struct slgt_info *info = tty->driver_data; in flush_chars() local
879 if (sanity_check(info, tty->name, "flush_chars")) in flush_chars()
881 DBGINFO(("%s flush_chars entry tx_count=%d\n", info->device_name, info->tx_count)); in flush_chars()
883 if (info->tx_count <= 0 || tty->flow.stopped || in flush_chars()
884 tty->hw_stopped || !info->tx_buf) in flush_chars()
887 DBGINFO(("%s flush_chars start transmit\n", info->device_name)); in flush_chars()
889 spin_lock_irqsave(&info->lock,flags); in flush_chars()
890 if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count)) in flush_chars()
891 info->tx_count = 0; in flush_chars()
892 spin_unlock_irqrestore(&info->lock,flags); in flush_chars()
897 struct slgt_info *info = tty->driver_data; in flush_buffer() local
900 if (sanity_check(info, tty->name, "flush_buffer")) in flush_buffer()
902 DBGINFO(("%s flush_buffer\n", info->device_name)); in flush_buffer()
904 spin_lock_irqsave(&info->lock, flags); in flush_buffer()
905 info->tx_count = 0; in flush_buffer()
906 spin_unlock_irqrestore(&info->lock, flags); in flush_buffer()
916 struct slgt_info *info = tty->driver_data; in tx_hold() local
919 if (sanity_check(info, tty->name, "tx_hold")) in tx_hold()
921 DBGINFO(("%s tx_hold\n", info->device_name)); in tx_hold()
922 spin_lock_irqsave(&info->lock,flags); in tx_hold()
923 if (info->tx_enabled && info->params.mode == MGSL_MODE_ASYNC) in tx_hold()
924 tx_stop(info); in tx_hold()
925 spin_unlock_irqrestore(&info->lock,flags); in tx_hold()
933 struct slgt_info *info = tty->driver_data; in tx_release() local
936 if (sanity_check(info, tty->name, "tx_release")) in tx_release()
938 DBGINFO(("%s tx_release\n", info->device_name)); in tx_release()
939 spin_lock_irqsave(&info->lock, flags); in tx_release()
940 if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count)) in tx_release()
941 info->tx_count = 0; in tx_release()
942 spin_unlock_irqrestore(&info->lock, flags); in tx_release()
959 struct slgt_info *info = tty->driver_data; in ioctl() local
963 if (sanity_check(info, tty->name, "ioctl")) in ioctl()
965 DBGINFO(("%s ioctl() cmd=%08X\n", info->device_name, cmd)); in ioctl()
974 return wait_mgsl_event(info, argp); in ioctl()
976 return modem_input_wait(info,(int)arg); in ioctl()
978 return set_gpio(info, argp); in ioctl()
980 return get_gpio(info, argp); in ioctl()
982 return wait_gpio(info, argp); in ioctl()
984 return get_xsync(info, argp); in ioctl()
986 return set_xsync(info, (int)arg); in ioctl()
988 return get_xctrl(info, argp); in ioctl()
990 return set_xctrl(info, (int)arg); in ioctl()
992 mutex_lock(&info->port.mutex); in ioctl()
995 ret = get_params(info, argp); in ioctl()
998 ret = set_params(info, argp); in ioctl()
1001 ret = get_txidle(info, argp); in ioctl()
1004 ret = set_txidle(info, (int)arg); in ioctl()
1007 ret = tx_enable(info, (int)arg); in ioctl()
1010 ret = rx_enable(info, (int)arg); in ioctl()
1013 ret = tx_abort(info); in ioctl()
1016 ret = get_stats(info, argp); in ioctl()
1019 ret = get_interface(info, argp); in ioctl()
1022 ret = set_interface(info,(int)arg); in ioctl()
1027 mutex_unlock(&info->port.mutex); in ioctl()
1035 struct slgt_info *info = tty->driver_data; in get_icount() local
1039 spin_lock_irqsave(&info->lock,flags); in get_icount()
1040 cnow = info->icount; in get_icount()
1041 spin_unlock_irqrestore(&info->lock,flags); in get_icount()
1062 static long get_params32(struct slgt_info *info, struct MGSL_PARAMS32 __user *user_params) in get_params32() argument
1066 DBGINFO(("%s get_params32\n", info->device_name)); in get_params32()
1068 tmp_params.mode = (compat_ulong_t)info->params.mode; in get_params32()
1069 tmp_params.loopback = info->params.loopback; in get_params32()
1070 tmp_params.flags = info->params.flags; in get_params32()
1071 tmp_params.encoding = info->params.encoding; in get_params32()
1072 tmp_params.clock_speed = (compat_ulong_t)info->params.clock_speed; in get_params32()
1073 tmp_params.addr_filter = info->params.addr_filter; in get_params32()
1074 tmp_params.crc_type = info->params.crc_type; in get_params32()
1075 tmp_params.preamble_length = info->params.preamble_length; in get_params32()
1076 tmp_params.preamble = info->params.preamble; in get_params32()
1077 tmp_params.data_rate = (compat_ulong_t)info->params.data_rate; in get_params32()
1078 tmp_params.data_bits = info->params.data_bits; in get_params32()
1079 tmp_params.stop_bits = info->params.stop_bits; in get_params32()
1080 tmp_params.parity = info->params.parity; in get_params32()
1086 static long set_params32(struct slgt_info *info, struct MGSL_PARAMS32 __user *new_params) in set_params32() argument
1091 DBGINFO(("%s set_params32\n", info->device_name)); in set_params32()
1095 spin_lock_irqsave(&info->lock, flags); in set_params32()
1097 info->base_clock = tmp_params.clock_speed; in set_params32()
1099 info->params.mode = tmp_params.mode; in set_params32()
1100 info->params.loopback = tmp_params.loopback; in set_params32()
1101 info->params.flags = tmp_params.flags; in set_params32()
1102 info->params.encoding = tmp_params.encoding; in set_params32()
1103 info->params.clock_speed = tmp_params.clock_speed; in set_params32()
1104 info->params.addr_filter = tmp_params.addr_filter; in set_params32()
1105 info->params.crc_type = tmp_params.crc_type; in set_params32()
1106 info->params.preamble_length = tmp_params.preamble_length; in set_params32()
1107 info->params.preamble = tmp_params.preamble; in set_params32()
1108 info->params.data_rate = tmp_params.data_rate; in set_params32()
1109 info->params.data_bits = tmp_params.data_bits; in set_params32()
1110 info->params.stop_bits = tmp_params.stop_bits; in set_params32()
1111 info->params.parity = tmp_params.parity; in set_params32()
1113 spin_unlock_irqrestore(&info->lock, flags); in set_params32()
1115 program_hw(info); in set_params32()
1123 struct slgt_info *info = tty->driver_data; in slgt_compat_ioctl() local
1126 if (sanity_check(info, tty->name, "compat_ioctl")) in slgt_compat_ioctl()
1128 DBGINFO(("%s compat_ioctl() cmd=%08X\n", info->device_name, cmd)); in slgt_compat_ioctl()
1132 rc = set_params32(info, compat_ptr(arg)); in slgt_compat_ioctl()
1136 rc = get_params32(info, compat_ptr(arg)); in slgt_compat_ioctl()
1155 DBGINFO(("%s compat_ioctl() cmd=%08X rc=%d\n", info->device_name, cmd, rc)); in slgt_compat_ioctl()
1165 static inline void line_info(struct seq_file *m, struct slgt_info *info) in line_info() argument
1171 info->device_name, info->phys_reg_addr, in line_info()
1172 info->irq_level, info->max_frame_size); in line_info()
1175 spin_lock_irqsave(&info->lock,flags); in line_info()
1176 get_gtsignals(info); in line_info()
1177 spin_unlock_irqrestore(&info->lock,flags); in line_info()
1181 if (info->signals & SerialSignal_RTS) in line_info()
1183 if (info->signals & SerialSignal_CTS) in line_info()
1185 if (info->signals & SerialSignal_DTR) in line_info()
1187 if (info->signals & SerialSignal_DSR) in line_info()
1189 if (info->signals & SerialSignal_DCD) in line_info()
1191 if (info->signals & SerialSignal_RI) in line_info()
1194 if (info->params.mode != MGSL_MODE_ASYNC) { in line_info()
1196 info->icount.txok, info->icount.rxok); in line_info()
1197 if (info->icount.txunder) in line_info()
1198 seq_printf(m, " txunder:%d", info->icount.txunder); in line_info()
1199 if (info->icount.txabort) in line_info()
1200 seq_printf(m, " txabort:%d", info->icount.txabort); in line_info()
1201 if (info->icount.rxshort) in line_info()
1202 seq_printf(m, " rxshort:%d", info->icount.rxshort); in line_info()
1203 if (info->icount.rxlong) in line_info()
1204 seq_printf(m, " rxlong:%d", info->icount.rxlong); in line_info()
1205 if (info->icount.rxover) in line_info()
1206 seq_printf(m, " rxover:%d", info->icount.rxover); in line_info()
1207 if (info->icount.rxcrc) in line_info()
1208 seq_printf(m, " rxcrc:%d", info->icount.rxcrc); in line_info()
1211 info->icount.tx, info->icount.rx); in line_info()
1212 if (info->icount.frame) in line_info()
1213 seq_printf(m, " fe:%d", info->icount.frame); in line_info()
1214 if (info->icount.parity) in line_info()
1215 seq_printf(m, " pe:%d", info->icount.parity); in line_info()
1216 if (info->icount.brk) in line_info()
1217 seq_printf(m, " brk:%d", info->icount.brk); in line_info()
1218 if (info->icount.overrun) in line_info()
1219 seq_printf(m, " oe:%d", info->icount.overrun); in line_info()
1226 info->tx_active,info->bh_requested,info->bh_running, in line_info()
1227 info->pending_bh); in line_info()
1234 struct slgt_info *info; in synclink_gt_proc_show() local
1238 info = slgt_device_list; in synclink_gt_proc_show()
1239 while( info ) { in synclink_gt_proc_show()
1240 line_info(m, info); in synclink_gt_proc_show()
1241 info = info->next_device; in synclink_gt_proc_show()
1251 struct slgt_info *info = tty->driver_data; in chars_in_buffer() local
1253 if (sanity_check(info, tty->name, "chars_in_buffer")) in chars_in_buffer()
1255 count = tbuf_bytes(info); in chars_in_buffer()
1256 DBGINFO(("%s chars_in_buffer()=%u\n", info->device_name, count)); in chars_in_buffer()
1265 struct slgt_info *info = tty->driver_data; in throttle() local
1268 if (sanity_check(info, tty->name, "throttle")) in throttle()
1270 DBGINFO(("%s throttle\n", info->device_name)); in throttle()
1274 spin_lock_irqsave(&info->lock,flags); in throttle()
1275 info->signals &= ~SerialSignal_RTS; in throttle()
1276 set_gtsignals(info); in throttle()
1277 spin_unlock_irqrestore(&info->lock,flags); in throttle()
1286 struct slgt_info *info = tty->driver_data; in unthrottle() local
1289 if (sanity_check(info, tty->name, "unthrottle")) in unthrottle()
1291 DBGINFO(("%s unthrottle\n", info->device_name)); in unthrottle()
1293 if (info->x_char) in unthrottle()
1294 info->x_char = 0; in unthrottle()
1299 spin_lock_irqsave(&info->lock,flags); in unthrottle()
1300 info->signals |= SerialSignal_RTS; in unthrottle()
1301 set_gtsignals(info); in unthrottle()
1302 spin_unlock_irqrestore(&info->lock,flags); in unthrottle()
1312 struct slgt_info *info = tty->driver_data; in set_break() local
1316 if (sanity_check(info, tty->name, "set_break")) in set_break()
1318 DBGINFO(("%s set_break(%d)\n", info->device_name, break_state)); in set_break()
1320 spin_lock_irqsave(&info->lock,flags); in set_break()
1321 value = rd_reg16(info, TCR); in set_break()
1326 wr_reg16(info, TCR, value); in set_break()
1327 spin_unlock_irqrestore(&info->lock,flags); in set_break()
1346 struct slgt_info *info = dev_to_port(dev); in hdlcdev_attach() local
1351 if (info->port.count) in hdlcdev_attach()
1354 DBGINFO(("%s hdlcdev_attach\n", info->device_name)); in hdlcdev_attach()
1374 info->params.encoding = new_encoding; in hdlcdev_attach()
1375 info->params.crc_type = new_crctype; in hdlcdev_attach()
1378 if (info->netcount) in hdlcdev_attach()
1379 program_hw(info); in hdlcdev_attach()
1392 struct slgt_info *info = dev_to_port(dev); in hdlcdev_xmit() local
1410 spin_lock_irqsave(&info->lock, flags); in hdlcdev_xmit()
1411 tx_load(info, skb->data, skb->len); in hdlcdev_xmit()
1412 spin_unlock_irqrestore(&info->lock, flags); in hdlcdev_xmit()
1430 struct slgt_info *info = dev_to_port(dev); in hdlcdev_open() local
1437 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_open()
1438 if (info->port.count != 0 || info->netcount != 0) { in hdlcdev_open()
1440 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1443 info->netcount=1; in hdlcdev_open()
1444 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1447 if ((rc = startup(info)) != 0) { in hdlcdev_open()
1448 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_open()
1449 info->netcount=0; in hdlcdev_open()
1450 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1457 shutdown(info); in hdlcdev_open()
1458 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_open()
1459 info->netcount = 0; in hdlcdev_open()
1460 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1465 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in hdlcdev_open()
1466 program_hw(info); in hdlcdev_open()
1473 spin_lock_irqsave(&info->lock, flags); in hdlcdev_open()
1474 get_gtsignals(info); in hdlcdev_open()
1475 spin_unlock_irqrestore(&info->lock, flags); in hdlcdev_open()
1476 if (info->signals & SerialSignal_DCD) in hdlcdev_open()
1493 struct slgt_info *info = dev_to_port(dev); in hdlcdev_close() local
1501 shutdown(info); in hdlcdev_close()
1505 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_close()
1506 info->netcount=0; in hdlcdev_close()
1507 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_close()
1525 struct slgt_info *info = dev_to_port(dev); in hdlcdev_ioctl() local
1531 if (info->port.count) in hdlcdev_ioctl()
1545 flags = info->params.flags & (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL | in hdlcdev_ioctl()
1558 new_line.clock_rate = info->params.clock_speed; in hdlcdev_ioctl()
1559 new_line.loopback = info->params.loopback ? 1:0; in hdlcdev_ioctl()
1578 case CLOCK_DEFAULT: flags = info->params.flags & in hdlcdev_ioctl()
1589 info->params.flags &= ~(HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL | in hdlcdev_ioctl()
1593 info->params.flags |= flags; in hdlcdev_ioctl()
1595 info->params.loopback = new_line.loopback; in hdlcdev_ioctl()
1598 info->params.clock_speed = new_line.clock_rate; in hdlcdev_ioctl()
1600 info->params.clock_speed = 0; in hdlcdev_ioctl()
1603 if (info->netcount) in hdlcdev_ioctl()
1604 program_hw(info); in hdlcdev_ioctl()
1619 struct slgt_info *info = dev_to_port(dev); in hdlcdev_tx_timeout() local
1627 spin_lock_irqsave(&info->lock,flags); in hdlcdev_tx_timeout()
1628 tx_stop(info); in hdlcdev_tx_timeout()
1629 spin_unlock_irqrestore(&info->lock,flags); in hdlcdev_tx_timeout()
1640 static void hdlcdev_tx_done(struct slgt_info *info) in hdlcdev_tx_done() argument
1642 if (netif_queue_stopped(info->netdev)) in hdlcdev_tx_done()
1643 netif_wake_queue(info->netdev); in hdlcdev_tx_done()
1654 static void hdlcdev_rx(struct slgt_info *info, char *buf, int size) in hdlcdev_rx() argument
1657 struct net_device *dev = info->netdev; in hdlcdev_rx()
1693 static int hdlcdev_init(struct slgt_info *info) in hdlcdev_init() argument
1701 dev = alloc_hdlcdev(info); in hdlcdev_init()
1703 printk(KERN_ERR "%s hdlc device alloc failure\n", info->device_name); in hdlcdev_init()
1708 dev->mem_start = info->phys_reg_addr; in hdlcdev_init()
1709 dev->mem_end = info->phys_reg_addr + SLGT_REG_SIZE - 1; in hdlcdev_init()
1710 dev->irq = info->irq_level; in hdlcdev_init()
1730 info->netdev = dev; in hdlcdev_init()
1740 static void hdlcdev_exit(struct slgt_info *info) in hdlcdev_exit() argument
1742 if (!info->netdev) in hdlcdev_exit()
1744 unregister_hdlc_device(info->netdev); in hdlcdev_exit()
1745 free_netdev(info->netdev); in hdlcdev_exit()
1746 info->netdev = NULL; in hdlcdev_exit()
1754 static void rx_async(struct slgt_info *info) in rx_async() argument
1756 struct mgsl_icount *icount = &info->icount; in rx_async()
1760 struct slgt_desc *bufs = info->rbufs; in rx_async()
1766 start = end = info->rbuf_current; in rx_async()
1769 count = desc_count(bufs[end]) - info->rbuf_index; in rx_async()
1770 p = bufs[end].buf + info->rbuf_index; in rx_async()
1772 DBGISR(("%s rx_async count=%d\n", info->device_name, count)); in rx_async()
1773 DBGDATA(info, p, count, "rx"); in rx_async()
1788 if (status & info->ignore_status_mask) in rx_async()
1795 tty_insert_flip_char(&info->port, ch, stat); in rx_async()
1801 info->rbuf_index += i; in rx_async()
1802 mod_timer(&info->rx_timer, jiffies + 1); in rx_async()
1806 info->rbuf_index = 0; in rx_async()
1807 free_rbufs(info, end, end); in rx_async()
1809 if (++end == info->rbuf_count) in rx_async()
1818 tty_flip_buffer_push(&info->port); in rx_async()
1824 static int bh_action(struct slgt_info *info) in bh_action() argument
1829 spin_lock_irqsave(&info->lock,flags); in bh_action()
1831 if (info->pending_bh & BH_RECEIVE) { in bh_action()
1832 info->pending_bh &= ~BH_RECEIVE; in bh_action()
1834 } else if (info->pending_bh & BH_TRANSMIT) { in bh_action()
1835 info->pending_bh &= ~BH_TRANSMIT; in bh_action()
1837 } else if (info->pending_bh & BH_STATUS) { in bh_action()
1838 info->pending_bh &= ~BH_STATUS; in bh_action()
1842 info->bh_running = false; in bh_action()
1843 info->bh_requested = false; in bh_action()
1847 spin_unlock_irqrestore(&info->lock,flags); in bh_action()
1857 struct slgt_info *info = container_of(work, struct slgt_info, task); in bh_handler() local
1860 info->bh_running = true; in bh_handler()
1862 while((action = bh_action(info))) { in bh_handler()
1865 DBGBH(("%s bh receive\n", info->device_name)); in bh_handler()
1866 switch(info->params.mode) { in bh_handler()
1868 rx_async(info); in bh_handler()
1871 while(rx_get_frame(info)); in bh_handler()
1877 while(rx_get_buf(info)); in bh_handler()
1881 if (info->rx_restart) in bh_handler()
1882 rx_start(info); in bh_handler()
1885 bh_transmit(info); in bh_handler()
1888 DBGBH(("%s bh status\n", info->device_name)); in bh_handler()
1889 info->ri_chkcount = 0; in bh_handler()
1890 info->dsr_chkcount = 0; in bh_handler()
1891 info->dcd_chkcount = 0; in bh_handler()
1892 info->cts_chkcount = 0; in bh_handler()
1895 DBGBH(("%s unknown action\n", info->device_name)); in bh_handler()
1899 DBGBH(("%s bh_handler exit\n", info->device_name)); in bh_handler()
1902 static void bh_transmit(struct slgt_info *info) in bh_transmit() argument
1904 struct tty_struct *tty = info->port.tty; in bh_transmit()
1906 DBGBH(("%s bh_transmit\n", info->device_name)); in bh_transmit()
1911 static void dsr_change(struct slgt_info *info, unsigned short status) in dsr_change() argument
1914 info->signals |= SerialSignal_DSR; in dsr_change()
1915 info->input_signal_events.dsr_up++; in dsr_change()
1917 info->signals &= ~SerialSignal_DSR; in dsr_change()
1918 info->input_signal_events.dsr_down++; in dsr_change()
1920 DBGISR(("dsr_change %s signals=%04X\n", info->device_name, info->signals)); in dsr_change()
1921 if ((info->dsr_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in dsr_change()
1922 slgt_irq_off(info, IRQ_DSR); in dsr_change()
1925 info->icount.dsr++; in dsr_change()
1926 wake_up_interruptible(&info->status_event_wait_q); in dsr_change()
1927 wake_up_interruptible(&info->event_wait_q); in dsr_change()
1928 info->pending_bh |= BH_STATUS; in dsr_change()
1931 static void cts_change(struct slgt_info *info, unsigned short status) in cts_change() argument
1934 info->signals |= SerialSignal_CTS; in cts_change()
1935 info->input_signal_events.cts_up++; in cts_change()
1937 info->signals &= ~SerialSignal_CTS; in cts_change()
1938 info->input_signal_events.cts_down++; in cts_change()
1940 DBGISR(("cts_change %s signals=%04X\n", info->device_name, info->signals)); in cts_change()
1941 if ((info->cts_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in cts_change()
1942 slgt_irq_off(info, IRQ_CTS); in cts_change()
1945 info->icount.cts++; in cts_change()
1946 wake_up_interruptible(&info->status_event_wait_q); in cts_change()
1947 wake_up_interruptible(&info->event_wait_q); in cts_change()
1948 info->pending_bh |= BH_STATUS; in cts_change()
1950 if (tty_port_cts_enabled(&info->port)) { in cts_change()
1951 if (info->port.tty) { in cts_change()
1952 if (info->port.tty->hw_stopped) { in cts_change()
1953 if (info->signals & SerialSignal_CTS) { in cts_change()
1954 info->port.tty->hw_stopped = false; in cts_change()
1955 info->pending_bh |= BH_TRANSMIT; in cts_change()
1959 if (!(info->signals & SerialSignal_CTS)) in cts_change()
1960 info->port.tty->hw_stopped = true; in cts_change()
1966 static void dcd_change(struct slgt_info *info, unsigned short status) in dcd_change() argument
1969 info->signals |= SerialSignal_DCD; in dcd_change()
1970 info->input_signal_events.dcd_up++; in dcd_change()
1972 info->signals &= ~SerialSignal_DCD; in dcd_change()
1973 info->input_signal_events.dcd_down++; in dcd_change()
1975 DBGISR(("dcd_change %s signals=%04X\n", info->device_name, info->signals)); in dcd_change()
1976 if ((info->dcd_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in dcd_change()
1977 slgt_irq_off(info, IRQ_DCD); in dcd_change()
1980 info->icount.dcd++; in dcd_change()
1982 if (info->netcount) { in dcd_change()
1983 if (info->signals & SerialSignal_DCD) in dcd_change()
1984 netif_carrier_on(info->netdev); in dcd_change()
1986 netif_carrier_off(info->netdev); in dcd_change()
1989 wake_up_interruptible(&info->status_event_wait_q); in dcd_change()
1990 wake_up_interruptible(&info->event_wait_q); in dcd_change()
1991 info->pending_bh |= BH_STATUS; in dcd_change()
1993 if (tty_port_check_carrier(&info->port)) { in dcd_change()
1994 if (info->signals & SerialSignal_DCD) in dcd_change()
1995 wake_up_interruptible(&info->port.open_wait); in dcd_change()
1997 if (info->port.tty) in dcd_change()
1998 tty_hangup(info->port.tty); in dcd_change()
2003 static void ri_change(struct slgt_info *info, unsigned short status) in ri_change() argument
2006 info->signals |= SerialSignal_RI; in ri_change()
2007 info->input_signal_events.ri_up++; in ri_change()
2009 info->signals &= ~SerialSignal_RI; in ri_change()
2010 info->input_signal_events.ri_down++; in ri_change()
2012 DBGISR(("ri_change %s signals=%04X\n", info->device_name, info->signals)); in ri_change()
2013 if ((info->ri_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in ri_change()
2014 slgt_irq_off(info, IRQ_RI); in ri_change()
2017 info->icount.rng++; in ri_change()
2018 wake_up_interruptible(&info->status_event_wait_q); in ri_change()
2019 wake_up_interruptible(&info->event_wait_q); in ri_change()
2020 info->pending_bh |= BH_STATUS; in ri_change()
2023 static void isr_rxdata(struct slgt_info *info) in isr_rxdata() argument
2025 unsigned int count = info->rbuf_fill_count; in isr_rxdata()
2026 unsigned int i = info->rbuf_fill_index; in isr_rxdata()
2029 while (rd_reg16(info, SSR) & IRQ_RXDATA) { in isr_rxdata()
2030 reg = rd_reg16(info, RDR); in isr_rxdata()
2031 DBGISR(("isr_rxdata %s RDR=%04X\n", info->device_name, reg)); in isr_rxdata()
2032 if (desc_complete(info->rbufs[i])) { in isr_rxdata()
2034 rx_stop(info); in isr_rxdata()
2035 info->rx_restart = true; in isr_rxdata()
2038 info->rbufs[i].buf[count++] = (unsigned char)reg; in isr_rxdata()
2040 if (info->params.mode == MGSL_MODE_ASYNC) in isr_rxdata()
2041 info->rbufs[i].buf[count++] = (unsigned char)(reg >> 8); in isr_rxdata()
2042 if (count == info->rbuf_fill_level || (reg & BIT10)) { in isr_rxdata()
2044 set_desc_count(info->rbufs[i], count); in isr_rxdata()
2045 set_desc_status(info->rbufs[i], BIT15 | (reg >> 8)); in isr_rxdata()
2046 info->rbuf_fill_count = count = 0; in isr_rxdata()
2047 if (++i == info->rbuf_count) in isr_rxdata()
2049 info->pending_bh |= BH_RECEIVE; in isr_rxdata()
2053 info->rbuf_fill_index = i; in isr_rxdata()
2054 info->rbuf_fill_count = count; in isr_rxdata()
2057 static void isr_serial(struct slgt_info *info) in isr_serial() argument
2059 unsigned short status = rd_reg16(info, SSR); in isr_serial()
2061 DBGISR(("%s isr_serial status=%04X\n", info->device_name, status)); in isr_serial()
2063 wr_reg16(info, SSR, status); /* clear pending */ in isr_serial()
2065 info->irq_occurred = true; in isr_serial()
2067 if (info->params.mode == MGSL_MODE_ASYNC) { in isr_serial()
2069 if (info->tx_active) in isr_serial()
2070 isr_txeom(info, status); in isr_serial()
2072 if (info->rx_pio && (status & IRQ_RXDATA)) in isr_serial()
2073 isr_rxdata(info); in isr_serial()
2075 info->icount.brk++; in isr_serial()
2077 if (info->port.tty) { in isr_serial()
2078 if (!(status & info->ignore_status_mask)) { in isr_serial()
2079 if (info->read_status_mask & MASK_BREAK) { in isr_serial()
2080 tty_insert_flip_char(&info->port, 0, TTY_BREAK); in isr_serial()
2081 if (info->port.flags & ASYNC_SAK) in isr_serial()
2082 do_SAK(info->port.tty); in isr_serial()
2089 isr_txeom(info, status); in isr_serial()
2090 if (info->rx_pio && (status & IRQ_RXDATA)) in isr_serial()
2091 isr_rxdata(info); in isr_serial()
2094 info->icount.rxidle++; in isr_serial()
2096 info->icount.exithunt++; in isr_serial()
2097 wake_up_interruptible(&info->event_wait_q); in isr_serial()
2101 rx_start(info); in isr_serial()
2105 dsr_change(info, status); in isr_serial()
2107 cts_change(info, status); in isr_serial()
2109 dcd_change(info, status); in isr_serial()
2111 ri_change(info, status); in isr_serial()
2114 static void isr_rdma(struct slgt_info *info) in isr_rdma() argument
2116 unsigned int status = rd_reg32(info, RDCSR); in isr_rdma()
2118 DBGISR(("%s isr_rdma status=%08x\n", info->device_name, status)); in isr_rdma()
2131 wr_reg32(info, RDCSR, status); /* clear pending */ in isr_rdma()
2134 DBGISR(("%s isr_rdma rx_restart=1\n", info->device_name)); in isr_rdma()
2135 info->rx_restart = true; in isr_rdma()
2137 info->pending_bh |= BH_RECEIVE; in isr_rdma()
2140 static void isr_tdma(struct slgt_info *info) in isr_tdma() argument
2142 unsigned int status = rd_reg32(info, TDCSR); in isr_tdma()
2144 DBGISR(("%s isr_tdma status=%08x\n", info->device_name, status)); in isr_tdma()
2156 wr_reg32(info, TDCSR, status); /* clear pending */ in isr_tdma()
2161 info->pending_bh |= BH_TRANSMIT; in isr_tdma()
2171 static bool unsent_tbufs(struct slgt_info *info) in unsent_tbufs() argument
2173 unsigned int i = info->tbuf_current; in unsent_tbufs()
2185 i = info->tbuf_count - 1; in unsent_tbufs()
2186 if (!desc_count(info->tbufs[i])) in unsent_tbufs()
2188 info->tbuf_start = i; in unsent_tbufs()
2190 } while (i != info->tbuf_current); in unsent_tbufs()
2195 static void isr_txeom(struct slgt_info *info, unsigned short status) in isr_txeom() argument
2197 DBGISR(("%s txeom status=%04x\n", info->device_name, status)); in isr_txeom()
2199 slgt_irq_off(info, IRQ_TXDATA + IRQ_TXIDLE + IRQ_TXUNDER); in isr_txeom()
2200 tdma_reset(info); in isr_txeom()
2202 unsigned short val = rd_reg16(info, TCR); in isr_txeom()
2203 wr_reg16(info, TCR, (unsigned short)(val | BIT2)); /* set reset bit */ in isr_txeom()
2204 wr_reg16(info, TCR, val); /* clear reset bit */ in isr_txeom()
2207 if (info->tx_active) { in isr_txeom()
2208 if (info->params.mode != MGSL_MODE_ASYNC) { in isr_txeom()
2210 info->icount.txunder++; in isr_txeom()
2212 info->icount.txok++; in isr_txeom()
2215 if (unsent_tbufs(info)) { in isr_txeom()
2216 tx_start(info); in isr_txeom()
2217 update_tx_timer(info); in isr_txeom()
2220 info->tx_active = false; in isr_txeom()
2222 del_timer(&info->tx_timer); in isr_txeom()
2224 if (info->params.mode != MGSL_MODE_ASYNC && info->drop_rts_on_tx_done) { in isr_txeom()
2225 info->signals &= ~SerialSignal_RTS; in isr_txeom()
2226 info->drop_rts_on_tx_done = false; in isr_txeom()
2227 set_gtsignals(info); in isr_txeom()
2231 if (info->netcount) in isr_txeom()
2232 hdlcdev_tx_done(info); in isr_txeom()
2236 if (info->port.tty && (info->port.tty->flow.stopped || info->port.tty->hw_stopped)) { in isr_txeom()
2237 tx_stop(info); in isr_txeom()
2240 info->pending_bh |= BH_TRANSMIT; in isr_txeom()
2245 static void isr_gpio(struct slgt_info *info, unsigned int changed, unsigned int state) in isr_gpio() argument
2250 for (w = info->gpio_wait_q, prev = NULL ; w != NULL ; w = w->next) { in isr_gpio()
2257 info->gpio_wait_q = w->next; in isr_gpio()
2270 struct slgt_info *info = dev_id; in slgt_interrupt() local
2274 DBGISR(("slgt_interrupt irq=%d entry\n", info->irq_level)); in slgt_interrupt()
2276 while((gsr = rd_reg32(info, GSR) & 0xffffff00)) { in slgt_interrupt()
2277 DBGISR(("%s gsr=%08x\n", info->device_name, gsr)); in slgt_interrupt()
2278 info->irq_occurred = true; in slgt_interrupt()
2279 for(i=0; i < info->port_count ; i++) { in slgt_interrupt()
2280 if (info->port_array[i] == NULL) in slgt_interrupt()
2282 spin_lock(&info->port_array[i]->lock); in slgt_interrupt()
2284 isr_serial(info->port_array[i]); in slgt_interrupt()
2286 isr_rdma(info->port_array[i]); in slgt_interrupt()
2288 isr_tdma(info->port_array[i]); in slgt_interrupt()
2289 spin_unlock(&info->port_array[i]->lock); in slgt_interrupt()
2293 if (info->gpio_present) { in slgt_interrupt()
2296 spin_lock(&info->lock); in slgt_interrupt()
2297 while ((changed = rd_reg32(info, IOSR)) != 0) { in slgt_interrupt()
2298 DBGISR(("%s iosr=%08x\n", info->device_name, changed)); in slgt_interrupt()
2300 state = rd_reg32(info, IOVR); in slgt_interrupt()
2302 wr_reg32(info, IOSR, changed); in slgt_interrupt()
2303 for (i=0 ; i < info->port_count ; i++) { in slgt_interrupt()
2304 if (info->port_array[i] != NULL) in slgt_interrupt()
2305 isr_gpio(info->port_array[i], changed, state); in slgt_interrupt()
2308 spin_unlock(&info->lock); in slgt_interrupt()
2311 for(i=0; i < info->port_count ; i++) { in slgt_interrupt()
2312 struct slgt_info *port = info->port_array[i]; in slgt_interrupt()
2326 DBGISR(("slgt_interrupt irq=%d exit\n", info->irq_level)); in slgt_interrupt()
2330 static int startup(struct slgt_info *info) in startup() argument
2332 DBGINFO(("%s startup\n", info->device_name)); in startup()
2334 if (tty_port_initialized(&info->port)) in startup()
2337 if (!info->tx_buf) { in startup()
2338 info->tx_buf = kmalloc(info->max_frame_size, GFP_KERNEL); in startup()
2339 if (!info->tx_buf) { in startup()
2340 DBGERR(("%s can't allocate tx buffer\n", info->device_name)); in startup()
2345 info->pending_bh = 0; in startup()
2347 memset(&info->icount, 0, sizeof(info->icount)); in startup()
2350 change_params(info); in startup()
2352 if (info->port.tty) in startup()
2353 clear_bit(TTY_IO_ERROR, &info->port.tty->flags); in startup()
2355 tty_port_set_initialized(&info->port, true); in startup()
2363 static void shutdown(struct slgt_info *info) in shutdown() argument
2367 if (!tty_port_initialized(&info->port)) in shutdown()
2370 DBGINFO(("%s shutdown\n", info->device_name)); in shutdown()
2374 wake_up_interruptible(&info->status_event_wait_q); in shutdown()
2375 wake_up_interruptible(&info->event_wait_q); in shutdown()
2377 del_timer_sync(&info->tx_timer); in shutdown()
2378 del_timer_sync(&info->rx_timer); in shutdown()
2380 kfree(info->tx_buf); in shutdown()
2381 info->tx_buf = NULL; in shutdown()
2383 spin_lock_irqsave(&info->lock,flags); in shutdown()
2385 tx_stop(info); in shutdown()
2386 rx_stop(info); in shutdown()
2388 slgt_irq_off(info, IRQ_ALL | IRQ_MASTER); in shutdown()
2390 if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) { in shutdown()
2391 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in shutdown()
2392 set_gtsignals(info); in shutdown()
2395 flush_cond_wait(&info->gpio_wait_q); in shutdown()
2397 spin_unlock_irqrestore(&info->lock,flags); in shutdown()
2399 if (info->port.tty) in shutdown()
2400 set_bit(TTY_IO_ERROR, &info->port.tty->flags); in shutdown()
2402 tty_port_set_initialized(&info->port, false); in shutdown()
2405 static void program_hw(struct slgt_info *info) in program_hw() argument
2409 spin_lock_irqsave(&info->lock,flags); in program_hw()
2411 rx_stop(info); in program_hw()
2412 tx_stop(info); in program_hw()
2414 if (info->params.mode != MGSL_MODE_ASYNC || in program_hw()
2415 info->netcount) in program_hw()
2416 sync_mode(info); in program_hw()
2418 async_mode(info); in program_hw()
2420 set_gtsignals(info); in program_hw()
2422 info->dcd_chkcount = 0; in program_hw()
2423 info->cts_chkcount = 0; in program_hw()
2424 info->ri_chkcount = 0; in program_hw()
2425 info->dsr_chkcount = 0; in program_hw()
2427 slgt_irq_on(info, IRQ_DCD | IRQ_CTS | IRQ_DSR | IRQ_RI); in program_hw()
2428 get_gtsignals(info); in program_hw()
2430 if (info->netcount || in program_hw()
2431 (info->port.tty && info->port.tty->termios.c_cflag & CREAD)) in program_hw()
2432 rx_start(info); in program_hw()
2434 spin_unlock_irqrestore(&info->lock,flags); in program_hw()
2440 static void change_params(struct slgt_info *info) in change_params() argument
2445 if (!info->port.tty) in change_params()
2447 DBGINFO(("%s change_params\n", info->device_name)); in change_params()
2449 cflag = info->port.tty->termios.c_cflag; in change_params()
2454 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in change_params()
2456 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in change_params()
2460 info->params.data_bits = tty_get_char_size(cflag); in change_params()
2461 info->params.stop_bits = (cflag & CSTOPB) ? 2 : 1; in change_params()
2464 info->params.parity = (cflag & PARODD) ? ASYNC_PARITY_ODD : ASYNC_PARITY_EVEN; in change_params()
2466 info->params.parity = ASYNC_PARITY_NONE; in change_params()
2471 bits_per_char = info->params.data_bits + in change_params()
2472 info->params.stop_bits + 1; in change_params()
2474 info->params.data_rate = tty_get_baud_rate(info->port.tty); in change_params()
2476 if (info->params.data_rate) { in change_params()
2477 info->timeout = (32*HZ*bits_per_char) / in change_params()
2478 info->params.data_rate; in change_params()
2480 info->timeout += HZ/50; /* Add .02 seconds of slop */ in change_params()
2482 tty_port_set_cts_flow(&info->port, cflag & CRTSCTS); in change_params()
2483 tty_port_set_check_carrier(&info->port, ~cflag & CLOCAL); in change_params()
2487 info->read_status_mask = IRQ_RXOVER; in change_params()
2488 if (I_INPCK(info->port.tty)) in change_params()
2489 info->read_status_mask |= MASK_PARITY | MASK_FRAMING; in change_params()
2490 if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty)) in change_params()
2491 info->read_status_mask |= MASK_BREAK; in change_params()
2492 if (I_IGNPAR(info->port.tty)) in change_params()
2493 info->ignore_status_mask |= MASK_PARITY | MASK_FRAMING; in change_params()
2494 if (I_IGNBRK(info->port.tty)) { in change_params()
2495 info->ignore_status_mask |= MASK_BREAK; in change_params()
2499 if (I_IGNPAR(info->port.tty)) in change_params()
2500 info->ignore_status_mask |= MASK_OVERRUN; in change_params()
2503 program_hw(info); in change_params()
2506 static int get_stats(struct slgt_info *info, struct mgsl_icount __user *user_icount) in get_stats() argument
2508 DBGINFO(("%s get_stats\n", info->device_name)); in get_stats()
2510 memset(&info->icount, 0, sizeof(info->icount)); in get_stats()
2512 if (copy_to_user(user_icount, &info->icount, sizeof(struct mgsl_icount))) in get_stats()
2518 static int get_params(struct slgt_info *info, MGSL_PARAMS __user *user_params) in get_params() argument
2520 DBGINFO(("%s get_params\n", info->device_name)); in get_params()
2521 if (copy_to_user(user_params, &info->params, sizeof(MGSL_PARAMS))) in get_params()
2526 static int set_params(struct slgt_info *info, MGSL_PARAMS __user *new_params) in set_params() argument
2531 DBGINFO(("%s set_params\n", info->device_name)); in set_params()
2535 spin_lock_irqsave(&info->lock, flags); in set_params()
2537 info->base_clock = tmp_params.clock_speed; in set_params()
2539 memcpy(&info->params, &tmp_params, sizeof(MGSL_PARAMS)); in set_params()
2540 spin_unlock_irqrestore(&info->lock, flags); in set_params()
2542 program_hw(info); in set_params()
2547 static int get_txidle(struct slgt_info *info, int __user *idle_mode) in get_txidle() argument
2549 DBGINFO(("%s get_txidle=%d\n", info->device_name, info->idle_mode)); in get_txidle()
2550 if (put_user(info->idle_mode, idle_mode)) in get_txidle()
2555 static int set_txidle(struct slgt_info *info, int idle_mode) in set_txidle() argument
2558 DBGINFO(("%s set_txidle(%d)\n", info->device_name, idle_mode)); in set_txidle()
2559 spin_lock_irqsave(&info->lock,flags); in set_txidle()
2560 info->idle_mode = idle_mode; in set_txidle()
2561 if (info->params.mode != MGSL_MODE_ASYNC) in set_txidle()
2562 tx_set_idle(info); in set_txidle()
2563 spin_unlock_irqrestore(&info->lock,flags); in set_txidle()
2567 static int tx_enable(struct slgt_info *info, int enable) in tx_enable() argument
2570 DBGINFO(("%s tx_enable(%d)\n", info->device_name, enable)); in tx_enable()
2571 spin_lock_irqsave(&info->lock,flags); in tx_enable()
2573 if (!info->tx_enabled) in tx_enable()
2574 tx_start(info); in tx_enable()
2576 if (info->tx_enabled) in tx_enable()
2577 tx_stop(info); in tx_enable()
2579 spin_unlock_irqrestore(&info->lock,flags); in tx_enable()
2586 static int tx_abort(struct slgt_info *info) in tx_abort() argument
2589 DBGINFO(("%s tx_abort\n", info->device_name)); in tx_abort()
2590 spin_lock_irqsave(&info->lock,flags); in tx_abort()
2591 tdma_reset(info); in tx_abort()
2592 spin_unlock_irqrestore(&info->lock,flags); in tx_abort()
2596 static int rx_enable(struct slgt_info *info, int enable) in rx_enable() argument
2600 DBGINFO(("%s rx_enable(%08x)\n", info->device_name, enable)); in rx_enable()
2601 spin_lock_irqsave(&info->lock,flags); in rx_enable()
2610 spin_unlock_irqrestore(&info->lock, flags); in rx_enable()
2613 info->rbuf_fill_level = rbuf_fill_level; in rx_enable()
2615 info->rx_pio = 1; /* PIO mode */ in rx_enable()
2617 info->rx_pio = 0; /* DMA mode */ in rx_enable()
2618 rx_stop(info); /* restart receiver to use new fill level */ in rx_enable()
2629 if (!info->rx_enabled) in rx_enable()
2630 rx_start(info); in rx_enable()
2633 wr_reg16(info, RCR, rd_reg16(info, RCR) | BIT3); in rx_enable()
2636 if (info->rx_enabled) in rx_enable()
2637 rx_stop(info); in rx_enable()
2639 spin_unlock_irqrestore(&info->lock,flags); in rx_enable()
2646 static int wait_mgsl_event(struct slgt_info *info, int __user *mask_ptr) in wait_mgsl_event() argument
2660 DBGINFO(("%s wait_mgsl_event(%d)\n", info->device_name, mask)); in wait_mgsl_event()
2662 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2665 get_gtsignals(info); in wait_mgsl_event()
2666 s = info->signals; in wait_mgsl_event()
2674 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2679 cprev = info->icount; in wait_mgsl_event()
2680 oldsigs = info->input_signal_events; in wait_mgsl_event()
2684 unsigned short val = rd_reg16(info, SCR); in wait_mgsl_event()
2686 wr_reg16(info, SCR, (unsigned short)(val | IRQ_RXIDLE)); in wait_mgsl_event()
2690 add_wait_queue(&info->event_wait_q, &wait); in wait_mgsl_event()
2692 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2702 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2703 cnow = info->icount; in wait_mgsl_event()
2704 newsigs = info->input_signal_events; in wait_mgsl_event()
2706 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2741 remove_wait_queue(&info->event_wait_q, &wait); in wait_mgsl_event()
2746 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2747 if (!waitqueue_active(&info->event_wait_q)) { in wait_mgsl_event()
2749 wr_reg16(info, SCR, in wait_mgsl_event()
2750 (unsigned short)(rd_reg16(info, SCR) & ~IRQ_RXIDLE)); in wait_mgsl_event()
2752 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2760 static int get_interface(struct slgt_info *info, int __user *if_mode) in get_interface() argument
2762 DBGINFO(("%s get_interface=%x\n", info->device_name, info->if_mode)); in get_interface()
2763 if (put_user(info->if_mode, if_mode)) in get_interface()
2768 static int set_interface(struct slgt_info *info, int if_mode) in set_interface() argument
2773 DBGINFO(("%s set_interface=%x)\n", info->device_name, if_mode)); in set_interface()
2774 spin_lock_irqsave(&info->lock,flags); in set_interface()
2775 info->if_mode = if_mode; in set_interface()
2777 msc_set_vcr(info); in set_interface()
2780 val = rd_reg16(info, TCR); in set_interface()
2781 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in set_interface()
2785 wr_reg16(info, TCR, val); in set_interface()
2787 spin_unlock_irqrestore(&info->lock,flags); in set_interface()
2791 static int get_xsync(struct slgt_info *info, int __user *xsync) in get_xsync() argument
2793 DBGINFO(("%s get_xsync=%x\n", info->device_name, info->xsync)); in get_xsync()
2794 if (put_user(info->xsync, xsync)) in get_xsync()
2805 static int set_xsync(struct slgt_info *info, int xsync) in set_xsync() argument
2809 DBGINFO(("%s set_xsync=%x)\n", info->device_name, xsync)); in set_xsync()
2810 spin_lock_irqsave(&info->lock, flags); in set_xsync()
2811 info->xsync = xsync; in set_xsync()
2812 wr_reg32(info, XSR, xsync); in set_xsync()
2813 spin_unlock_irqrestore(&info->lock, flags); in set_xsync()
2817 static int get_xctrl(struct slgt_info *info, int __user *xctrl) in get_xctrl() argument
2819 DBGINFO(("%s get_xctrl=%x\n", info->device_name, info->xctrl)); in get_xctrl()
2820 if (put_user(info->xctrl, xctrl)) in get_xctrl()
2842 static int set_xctrl(struct slgt_info *info, int xctrl) in set_xctrl() argument
2846 DBGINFO(("%s set_xctrl=%x)\n", info->device_name, xctrl)); in set_xctrl()
2847 spin_lock_irqsave(&info->lock, flags); in set_xctrl()
2848 info->xctrl = xctrl; in set_xctrl()
2849 wr_reg32(info, XCR, xctrl); in set_xctrl()
2850 spin_unlock_irqrestore(&info->lock, flags); in set_xctrl()
2863 static int set_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio) in set_gpio() argument
2869 if (!info->gpio_present) in set_gpio()
2874 info->device_name, gpio.state, gpio.smask, in set_gpio()
2877 spin_lock_irqsave(&info->port_array[0]->lock, flags); in set_gpio()
2879 data = rd_reg32(info, IODR); in set_gpio()
2882 wr_reg32(info, IODR, data); in set_gpio()
2885 data = rd_reg32(info, IOVR); in set_gpio()
2888 wr_reg32(info, IOVR, data); in set_gpio()
2890 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in set_gpio()
2898 static int get_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio) in get_gpio() argument
2901 if (!info->gpio_present) in get_gpio()
2903 gpio.state = rd_reg32(info, IOVR); in get_gpio()
2905 gpio.dir = rd_reg32(info, IODR); in get_gpio()
2910 info->device_name, gpio.state, gpio.dir)); in get_gpio()
2972 static int wait_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio) in wait_gpio() argument
2980 if (!info->gpio_present) in wait_gpio()
2985 info->device_name, gpio.state, gpio.smask)); in wait_gpio()
2987 if ((gpio.smask &= ~rd_reg32(info, IODR)) == 0) in wait_gpio()
2991 spin_lock_irqsave(&info->port_array[0]->lock, flags); in wait_gpio()
2993 wr_reg32(info, IOER, rd_reg32(info, IOER) | gpio.smask); in wait_gpio()
2995 state = rd_reg32(info, IOVR); in wait_gpio()
3002 add_cond_wait(&info->gpio_wait_q, &wait); in wait_gpio()
3003 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in wait_gpio()
3009 spin_lock_irqsave(&info->port_array[0]->lock, flags); in wait_gpio()
3010 remove_cond_wait(&info->gpio_wait_q, &wait); in wait_gpio()
3014 if (info->gpio_wait_q == NULL) in wait_gpio()
3015 wr_reg32(info, IOER, 0); in wait_gpio()
3016 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in wait_gpio()
3023 static int modem_input_wait(struct slgt_info *info,int arg) in modem_input_wait() argument
3031 spin_lock_irqsave(&info->lock,flags); in modem_input_wait()
3032 cprev = info->icount; in modem_input_wait()
3033 add_wait_queue(&info->status_event_wait_q, &wait); in modem_input_wait()
3035 spin_unlock_irqrestore(&info->lock,flags); in modem_input_wait()
3045 spin_lock_irqsave(&info->lock,flags); in modem_input_wait()
3046 cnow = info->icount; in modem_input_wait()
3048 spin_unlock_irqrestore(&info->lock,flags); in modem_input_wait()
3068 remove_wait_queue(&info->status_event_wait_q, &wait); in modem_input_wait()
3078 struct slgt_info *info = tty->driver_data; in tiocmget() local
3082 spin_lock_irqsave(&info->lock,flags); in tiocmget()
3083 get_gtsignals(info); in tiocmget()
3084 spin_unlock_irqrestore(&info->lock,flags); in tiocmget()
3086 result = ((info->signals & SerialSignal_RTS) ? TIOCM_RTS:0) + in tiocmget()
3087 ((info->signals & SerialSignal_DTR) ? TIOCM_DTR:0) + in tiocmget()
3088 ((info->signals & SerialSignal_DCD) ? TIOCM_CAR:0) + in tiocmget()
3089 ((info->signals & SerialSignal_RI) ? TIOCM_RNG:0) + in tiocmget()
3090 ((info->signals & SerialSignal_DSR) ? TIOCM_DSR:0) + in tiocmget()
3091 ((info->signals & SerialSignal_CTS) ? TIOCM_CTS:0); in tiocmget()
3093 DBGINFO(("%s tiocmget value=%08X\n", info->device_name, result)); in tiocmget()
3107 struct slgt_info *info = tty->driver_data; in tiocmset() local
3110 DBGINFO(("%s tiocmset(%x,%x)\n", info->device_name, set, clear)); in tiocmset()
3113 info->signals |= SerialSignal_RTS; in tiocmset()
3115 info->signals |= SerialSignal_DTR; in tiocmset()
3117 info->signals &= ~SerialSignal_RTS; in tiocmset()
3119 info->signals &= ~SerialSignal_DTR; in tiocmset()
3121 spin_lock_irqsave(&info->lock,flags); in tiocmset()
3122 set_gtsignals(info); in tiocmset()
3123 spin_unlock_irqrestore(&info->lock,flags); in tiocmset()
3130 struct slgt_info *info = container_of(port, struct slgt_info, port); in carrier_raised() local
3132 spin_lock_irqsave(&info->lock,flags); in carrier_raised()
3133 get_gtsignals(info); in carrier_raised()
3134 spin_unlock_irqrestore(&info->lock,flags); in carrier_raised()
3136 return info->signals & SerialSignal_DCD; in carrier_raised()
3142 struct slgt_info *info = container_of(port, struct slgt_info, port); in dtr_rts() local
3144 spin_lock_irqsave(&info->lock,flags); in dtr_rts()
3146 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in dtr_rts()
3148 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in dtr_rts()
3149 set_gtsignals(info); in dtr_rts()
3150 spin_unlock_irqrestore(&info->lock,flags); in dtr_rts()
3158 struct slgt_info *info) in block_til_ready() argument
3165 struct tty_port *port = &info->port; in block_til_ready()
3188 spin_lock_irqsave(&info->lock, flags); in block_til_ready()
3190 spin_unlock_irqrestore(&info->lock, flags); in block_til_ready()
3240 static int alloc_tmp_rbuf(struct slgt_info *info) in alloc_tmp_rbuf() argument
3242 info->tmp_rbuf = kmalloc(info->max_frame_size + 5, GFP_KERNEL); in alloc_tmp_rbuf()
3243 if (info->tmp_rbuf == NULL) in alloc_tmp_rbuf()
3249 static void free_tmp_rbuf(struct slgt_info *info) in free_tmp_rbuf() argument
3251 kfree(info->tmp_rbuf); in free_tmp_rbuf()
3252 info->tmp_rbuf = NULL; in free_tmp_rbuf()
3258 static int alloc_desc(struct slgt_info *info) in alloc_desc() argument
3264 info->bufs = dma_alloc_coherent(&info->pdev->dev, DESC_LIST_SIZE, in alloc_desc()
3265 &info->bufs_dma_addr, GFP_KERNEL); in alloc_desc()
3266 if (info->bufs == NULL) in alloc_desc()
3269 info->rbufs = (struct slgt_desc*)info->bufs; in alloc_desc()
3270 info->tbufs = ((struct slgt_desc*)info->bufs) + info->rbuf_count; in alloc_desc()
3272 pbufs = (unsigned int)info->bufs_dma_addr; in alloc_desc()
3278 for (i=0; i < info->rbuf_count; i++) { in alloc_desc()
3280 info->rbufs[i].pdesc = pbufs + (i * sizeof(struct slgt_desc)); in alloc_desc()
3283 if (i == info->rbuf_count - 1) in alloc_desc()
3284 info->rbufs[i].next = cpu_to_le32(pbufs); in alloc_desc()
3286 info->rbufs[i].next = cpu_to_le32(pbufs + ((i+1) * sizeof(struct slgt_desc))); in alloc_desc()
3287 set_desc_count(info->rbufs[i], DMABUFSIZE); in alloc_desc()
3290 for (i=0; i < info->tbuf_count; i++) { in alloc_desc()
3292 info->tbufs[i].pdesc = pbufs + ((info->rbuf_count + i) * sizeof(struct slgt_desc)); in alloc_desc()
3295 if (i == info->tbuf_count - 1) in alloc_desc()
3296 info->tbufs[i].next = cpu_to_le32(pbufs + info->rbuf_count * sizeof(struct slgt_desc)); in alloc_desc()
3298 …info->tbufs[i].next = cpu_to_le32(pbufs + ((info->rbuf_count + i + 1) * sizeof(struct slgt_desc))); in alloc_desc()
3304 static void free_desc(struct slgt_info *info) in free_desc() argument
3306 if (info->bufs != NULL) { in free_desc()
3307 dma_free_coherent(&info->pdev->dev, DESC_LIST_SIZE, in free_desc()
3308 info->bufs, info->bufs_dma_addr); in free_desc()
3309 info->bufs = NULL; in free_desc()
3310 info->rbufs = NULL; in free_desc()
3311 info->tbufs = NULL; in free_desc()
3315 static int alloc_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count) in alloc_bufs() argument
3319 bufs[i].buf = dma_alloc_coherent(&info->pdev->dev, DMABUFSIZE, in alloc_bufs()
3328 static void free_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count) in free_bufs() argument
3334 dma_free_coherent(&info->pdev->dev, DMABUFSIZE, bufs[i].buf, in free_bufs()
3340 static int alloc_dma_bufs(struct slgt_info *info) in alloc_dma_bufs() argument
3342 info->rbuf_count = 32; in alloc_dma_bufs()
3343 info->tbuf_count = 32; in alloc_dma_bufs()
3345 if (alloc_desc(info) < 0 || in alloc_dma_bufs()
3346 alloc_bufs(info, info->rbufs, info->rbuf_count) < 0 || in alloc_dma_bufs()
3347 alloc_bufs(info, info->tbufs, info->tbuf_count) < 0 || in alloc_dma_bufs()
3348 alloc_tmp_rbuf(info) < 0) { in alloc_dma_bufs()
3349 DBGERR(("%s DMA buffer alloc fail\n", info->device_name)); in alloc_dma_bufs()
3352 reset_rbufs(info); in alloc_dma_bufs()
3356 static void free_dma_bufs(struct slgt_info *info) in free_dma_bufs() argument
3358 if (info->bufs) { in free_dma_bufs()
3359 free_bufs(info, info->rbufs, info->rbuf_count); in free_dma_bufs()
3360 free_bufs(info, info->tbufs, info->tbuf_count); in free_dma_bufs()
3361 free_desc(info); in free_dma_bufs()
3363 free_tmp_rbuf(info); in free_dma_bufs()
3366 static int claim_resources(struct slgt_info *info) in claim_resources() argument
3368 if (request_mem_region(info->phys_reg_addr, SLGT_REG_SIZE, "synclink_gt") == NULL) { in claim_resources()
3370 info->device_name, info->phys_reg_addr)); in claim_resources()
3371 info->init_error = DiagStatus_AddressConflict; in claim_resources()
3375 info->reg_addr_requested = true; in claim_resources()
3377 info->reg_addr = ioremap(info->phys_reg_addr, SLGT_REG_SIZE); in claim_resources()
3378 if (!info->reg_addr) { in claim_resources()
3380 info->device_name, info->phys_reg_addr)); in claim_resources()
3381 info->init_error = DiagStatus_CantAssignPciResources; in claim_resources()
3387 release_resources(info); in claim_resources()
3391 static void release_resources(struct slgt_info *info) in release_resources() argument
3393 if (info->irq_requested) { in release_resources()
3394 free_irq(info->irq_level, info); in release_resources()
3395 info->irq_requested = false; in release_resources()
3398 if (info->reg_addr_requested) { in release_resources()
3399 release_mem_region(info->phys_reg_addr, SLGT_REG_SIZE); in release_resources()
3400 info->reg_addr_requested = false; in release_resources()
3403 if (info->reg_addr) { in release_resources()
3404 iounmap(info->reg_addr); in release_resources()
3405 info->reg_addr = NULL; in release_resources()
3412 static void add_device(struct slgt_info *info) in add_device() argument
3416 info->next_device = NULL; in add_device()
3417 info->line = slgt_device_count; in add_device()
3418 sprintf(info->device_name, "%s%d", tty_dev_prefix, info->line); in add_device()
3420 if (info->line < MAX_DEVICES) { in add_device()
3421 if (maxframe[info->line]) in add_device()
3422 info->max_frame_size = maxframe[info->line]; in add_device()
3428 slgt_device_list = info; in add_device()
3433 current_dev->next_device = info; in add_device()
3436 if (info->max_frame_size < 4096) in add_device()
3437 info->max_frame_size = 4096; in add_device()
3438 else if (info->max_frame_size > 65535) in add_device()
3439 info->max_frame_size = 65535; in add_device()
3441 switch(info->pdev->device) { in add_device()
3453 info->params.mode = MGSL_MODE_ASYNC; in add_device()
3459 devstr, info->device_name, info->phys_reg_addr, in add_device()
3460 info->irq_level, info->max_frame_size); in add_device()
3463 hdlcdev_init(info); in add_device()
3477 struct slgt_info *info; in alloc_dev() local
3479 info = kzalloc(sizeof(struct slgt_info), GFP_KERNEL); in alloc_dev()
3481 if (!info) { in alloc_dev()
3485 tty_port_init(&info->port); in alloc_dev()
3486 info->port.ops = &slgt_port_ops; in alloc_dev()
3487 INIT_WORK(&info->task, bh_handler); in alloc_dev()
3488 info->max_frame_size = 4096; in alloc_dev()
3489 info->base_clock = 14745600; in alloc_dev()
3490 info->rbuf_fill_level = DMABUFSIZE; in alloc_dev()
3491 init_waitqueue_head(&info->status_event_wait_q); in alloc_dev()
3492 init_waitqueue_head(&info->event_wait_q); in alloc_dev()
3493 spin_lock_init(&info->netlock); in alloc_dev()
3494 memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS)); in alloc_dev()
3495 info->idle_mode = HDLC_TXIDLE_FLAGS; in alloc_dev()
3496 info->adapter_num = adapter_num; in alloc_dev()
3497 info->port_num = port_num; in alloc_dev()
3499 timer_setup(&info->tx_timer, tx_timeout, 0); in alloc_dev()
3500 timer_setup(&info->rx_timer, rx_timeout, 0); in alloc_dev()
3503 info->pdev = pdev; in alloc_dev()
3504 info->irq_level = pdev->irq; in alloc_dev()
3505 info->phys_reg_addr = pci_resource_start(pdev,0); in alloc_dev()
3507 info->bus_type = MGSL_BUS_TYPE_PCI; in alloc_dev()
3508 info->irq_flags = IRQF_SHARED; in alloc_dev()
3510 info->init_error = -1; /* assume error, set to 0 on successful init */ in alloc_dev()
3513 return info; in alloc_dev()
3578 struct slgt_info *info = port_array[i]; in device_init() local
3579 tty_port_register_device(&info->port, serial_driver, info->line, in device_init()
3580 &info->pdev->dev); in device_init()
3628 struct slgt_info *info; in slgt_cleanup() local
3632 for (info=slgt_device_list ; info != NULL ; info=info->next_device) in slgt_cleanup()
3633 tty_unregister_device(serial_driver, info->line); in slgt_cleanup()
3639 info = slgt_device_list; in slgt_cleanup()
3640 while(info) { in slgt_cleanup()
3641 reset_port(info); in slgt_cleanup()
3642 info = info->next_device; in slgt_cleanup()
3646 info = slgt_device_list; in slgt_cleanup()
3647 while(info) { in slgt_cleanup()
3649 hdlcdev_exit(info); in slgt_cleanup()
3651 free_dma_bufs(info); in slgt_cleanup()
3652 free_tmp_rbuf(info); in slgt_cleanup()
3653 if (info->port_num == 0) in slgt_cleanup()
3654 release_resources(info); in slgt_cleanup()
3655 tmp = info; in slgt_cleanup()
3656 info = info->next_device; in slgt_cleanup()
3726 static inline void __iomem *calc_regaddr(struct slgt_info *info, in calc_regaddr() argument
3729 void __iomem *reg_addr = info->reg_addr + addr; in calc_regaddr()
3732 reg_addr += info->port_num * 32; in calc_regaddr()
3734 reg_addr += info->port_num * 16; in calc_regaddr()
3739 static __u8 rd_reg8(struct slgt_info *info, unsigned int addr) in rd_reg8() argument
3741 return readb(calc_regaddr(info, addr)); in rd_reg8()
3744 static void wr_reg8(struct slgt_info *info, unsigned int addr, __u8 value) in wr_reg8() argument
3746 writeb(value, calc_regaddr(info, addr)); in wr_reg8()
3749 static __u16 rd_reg16(struct slgt_info *info, unsigned int addr) in rd_reg16() argument
3751 return readw(calc_regaddr(info, addr)); in rd_reg16()
3754 static void wr_reg16(struct slgt_info *info, unsigned int addr, __u16 value) in wr_reg16() argument
3756 writew(value, calc_regaddr(info, addr)); in wr_reg16()
3759 static __u32 rd_reg32(struct slgt_info *info, unsigned int addr) in rd_reg32() argument
3761 return readl(calc_regaddr(info, addr)); in rd_reg32()
3764 static void wr_reg32(struct slgt_info *info, unsigned int addr, __u32 value) in wr_reg32() argument
3766 writel(value, calc_regaddr(info, addr)); in wr_reg32()
3769 static void rdma_reset(struct slgt_info *info) in rdma_reset() argument
3774 wr_reg32(info, RDCSR, BIT1); in rdma_reset()
3778 if (!(rd_reg32(info, RDCSR) & BIT0)) in rdma_reset()
3782 static void tdma_reset(struct slgt_info *info) in tdma_reset() argument
3787 wr_reg32(info, TDCSR, BIT1); in tdma_reset()
3791 if (!(rd_reg32(info, TDCSR) & BIT0)) in tdma_reset()
3800 static void enable_loopback(struct slgt_info *info) in enable_loopback() argument
3803 wr_reg16(info, SCR, (unsigned short)(rd_reg16(info, SCR) | BIT2)); in enable_loopback()
3805 if (info->params.mode != MGSL_MODE_ASYNC) { in enable_loopback()
3814 wr_reg8(info, CCR, 0x49); in enable_loopback()
3817 if (info->params.clock_speed) in enable_loopback()
3818 set_rate(info, info->params.clock_speed); in enable_loopback()
3820 set_rate(info, 3686400); in enable_loopback()
3827 static void set_rate(struct slgt_info *info, u32 rate) in set_rate() argument
3830 unsigned int osc = info->base_clock; in set_rate()
3842 wr_reg16(info, BDR, (unsigned short)div); in set_rate()
3846 static void rx_stop(struct slgt_info *info) in rx_stop() argument
3851 val = rd_reg16(info, RCR) & ~BIT1; /* clear enable bit */ in rx_stop()
3852 wr_reg16(info, RCR, (unsigned short)(val | BIT2)); /* set reset bit */ in rx_stop()
3853 wr_reg16(info, RCR, val); /* clear reset bit */ in rx_stop()
3855 slgt_irq_off(info, IRQ_RXOVER + IRQ_RXDATA + IRQ_RXIDLE); in rx_stop()
3858 wr_reg16(info, SSR, IRQ_RXIDLE + IRQ_RXOVER); in rx_stop()
3860 rdma_reset(info); in rx_stop()
3862 info->rx_enabled = false; in rx_stop()
3863 info->rx_restart = false; in rx_stop()
3866 static void rx_start(struct slgt_info *info) in rx_start() argument
3870 slgt_irq_off(info, IRQ_RXOVER + IRQ_RXDATA); in rx_start()
3873 wr_reg16(info, SSR, IRQ_RXOVER); in rx_start()
3876 val = rd_reg16(info, RCR) & ~BIT1; /* clear enable bit */ in rx_start()
3877 wr_reg16(info, RCR, (unsigned short)(val | BIT2)); /* set reset bit */ in rx_start()
3878 wr_reg16(info, RCR, val); /* clear reset bit */ in rx_start()
3880 rdma_reset(info); in rx_start()
3881 reset_rbufs(info); in rx_start()
3883 if (info->rx_pio) { in rx_start()
3885 wr_reg16(info, SCR, (unsigned short)(rd_reg16(info, SCR) & ~BIT14)); in rx_start()
3886 slgt_irq_on(info, IRQ_RXDATA); in rx_start()
3887 if (info->params.mode == MGSL_MODE_ASYNC) { in rx_start()
3889 wr_reg32(info, RDCSR, BIT6); in rx_start()
3893 wr_reg16(info, SCR, (unsigned short)(rd_reg16(info, SCR) | BIT14)); in rx_start()
3895 wr_reg32(info, RDDAR, info->rbufs[0].pdesc); in rx_start()
3897 if (info->params.mode != MGSL_MODE_ASYNC) { in rx_start()
3899 wr_reg32(info, RDCSR, (BIT2 + BIT0)); in rx_start()
3902 wr_reg32(info, RDCSR, (BIT6 + BIT2 + BIT0)); in rx_start()
3906 slgt_irq_on(info, IRQ_RXOVER); in rx_start()
3909 wr_reg16(info, RCR, (unsigned short)(rd_reg16(info, RCR) | BIT1)); in rx_start()
3911 info->rx_restart = false; in rx_start()
3912 info->rx_enabled = true; in rx_start()
3915 static void tx_start(struct slgt_info *info) in tx_start() argument
3917 if (!info->tx_enabled) { in tx_start()
3918 wr_reg16(info, TCR, in tx_start()
3919 (unsigned short)((rd_reg16(info, TCR) | BIT1) & ~BIT2)); in tx_start()
3920 info->tx_enabled = true; in tx_start()
3923 if (desc_count(info->tbufs[info->tbuf_start])) { in tx_start()
3924 info->drop_rts_on_tx_done = false; in tx_start()
3926 if (info->params.mode != MGSL_MODE_ASYNC) { in tx_start()
3927 if (info->params.flags & HDLC_FLAG_AUTO_RTS) { in tx_start()
3928 get_gtsignals(info); in tx_start()
3929 if (!(info->signals & SerialSignal_RTS)) { in tx_start()
3930 info->signals |= SerialSignal_RTS; in tx_start()
3931 set_gtsignals(info); in tx_start()
3932 info->drop_rts_on_tx_done = true; in tx_start()
3936 slgt_irq_off(info, IRQ_TXDATA); in tx_start()
3937 slgt_irq_on(info, IRQ_TXUNDER + IRQ_TXIDLE); in tx_start()
3939 wr_reg16(info, SSR, (unsigned short)(IRQ_TXIDLE + IRQ_TXUNDER)); in tx_start()
3941 slgt_irq_off(info, IRQ_TXDATA); in tx_start()
3942 slgt_irq_on(info, IRQ_TXIDLE); in tx_start()
3944 wr_reg16(info, SSR, IRQ_TXIDLE); in tx_start()
3947 wr_reg32(info, TDDAR, info->tbufs[info->tbuf_start].pdesc); in tx_start()
3948 wr_reg32(info, TDCSR, BIT2 + BIT0); in tx_start()
3949 info->tx_active = true; in tx_start()
3953 static void tx_stop(struct slgt_info *info) in tx_stop() argument
3957 del_timer(&info->tx_timer); in tx_stop()
3959 tdma_reset(info); in tx_stop()
3962 val = rd_reg16(info, TCR) & ~BIT1; /* clear enable bit */ in tx_stop()
3963 wr_reg16(info, TCR, (unsigned short)(val | BIT2)); /* set reset bit */ in tx_stop()
3965 slgt_irq_off(info, IRQ_TXDATA + IRQ_TXIDLE + IRQ_TXUNDER); in tx_stop()
3968 wr_reg16(info, SSR, (unsigned short)(IRQ_TXIDLE + IRQ_TXUNDER)); in tx_stop()
3970 reset_tbufs(info); in tx_stop()
3972 info->tx_enabled = false; in tx_stop()
3973 info->tx_active = false; in tx_stop()
3976 static void reset_port(struct slgt_info *info) in reset_port() argument
3978 if (!info->reg_addr) in reset_port()
3981 tx_stop(info); in reset_port()
3982 rx_stop(info); in reset_port()
3984 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in reset_port()
3985 set_gtsignals(info); in reset_port()
3987 slgt_irq_off(info, IRQ_ALL | IRQ_MASTER); in reset_port()
3990 static void reset_adapter(struct slgt_info *info) in reset_adapter() argument
3993 for (i=0; i < info->port_count; ++i) { in reset_adapter()
3994 if (info->port_array[i]) in reset_adapter()
3995 reset_port(info->port_array[i]); in reset_adapter()
3999 static void async_mode(struct slgt_info *info) in async_mode() argument
4003 slgt_irq_off(info, IRQ_ALL | IRQ_MASTER); in async_mode()
4004 tx_stop(info); in async_mode()
4005 rx_stop(info); in async_mode()
4027 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in async_mode()
4030 if (info->params.parity != ASYNC_PARITY_NONE) { in async_mode()
4032 if (info->params.parity == ASYNC_PARITY_ODD) in async_mode()
4036 switch (info->params.data_bits) in async_mode()
4043 if (info->params.stop_bits != 1) in async_mode()
4046 if (info->params.flags & HDLC_FLAG_AUTO_CTS) in async_mode()
4049 wr_reg16(info, TCR, val); in async_mode()
4070 if (info->params.parity != ASYNC_PARITY_NONE) { in async_mode()
4072 if (info->params.parity == ASYNC_PARITY_ODD) in async_mode()
4076 switch (info->params.data_bits) in async_mode()
4083 if (info->params.flags & HDLC_FLAG_AUTO_DCD) in async_mode()
4086 wr_reg16(info, RCR, val); in async_mode()
4097 wr_reg8(info, CCR, 0x69); in async_mode()
4099 msc_set_vcr(info); in async_mode()
4122 if ((rd_reg32(info, JCR) & BIT8) && info->params.data_rate && in async_mode()
4123 ((info->base_clock < (info->params.data_rate * 16)) || in async_mode()
4124 (info->base_clock % (info->params.data_rate * 16)))) { in async_mode()
4127 set_rate(info, info->params.data_rate * 8); in async_mode()
4130 set_rate(info, info->params.data_rate * 16); in async_mode()
4132 wr_reg16(info, SCR, val); in async_mode()
4134 slgt_irq_on(info, IRQ_RXBREAK | IRQ_RXOVER); in async_mode()
4136 if (info->params.loopback) in async_mode()
4137 enable_loopback(info); in async_mode()
4140 static void sync_mode(struct slgt_info *info) in sync_mode() argument
4144 slgt_irq_off(info, IRQ_ALL | IRQ_MASTER); in sync_mode()
4145 tx_stop(info); in sync_mode()
4146 rx_stop(info); in sync_mode()
4170 switch(info->params.mode) { in sync_mode()
4178 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in sync_mode()
4181 switch(info->params.encoding) in sync_mode()
4192 switch (info->params.crc_type & HDLC_CRC_MASK) in sync_mode()
4198 if (info->params.preamble != HDLC_PREAMBLE_PATTERN_NONE) in sync_mode()
4201 switch (info->params.preamble_length) in sync_mode()
4208 if (info->params.flags & HDLC_FLAG_AUTO_CTS) in sync_mode()
4211 wr_reg16(info, TCR, val); in sync_mode()
4215 switch (info->params.preamble) in sync_mode()
4224 wr_reg8(info, TPR, (unsigned char)val); in sync_mode()
4245 switch(info->params.mode) { in sync_mode()
4254 switch(info->params.encoding) in sync_mode()
4265 switch (info->params.crc_type & HDLC_CRC_MASK) in sync_mode()
4271 if (info->params.flags & HDLC_FLAG_AUTO_DCD) in sync_mode()
4274 wr_reg16(info, RCR, val); in sync_mode()
4285 if (info->params.flags & HDLC_FLAG_TXC_BRG) in sync_mode()
4290 if (info->params.flags & HDLC_FLAG_RXC_DPLL) in sync_mode()
4295 else if (info->params.flags & HDLC_FLAG_TXC_DPLL) in sync_mode()
4297 else if (info->params.flags & HDLC_FLAG_TXC_RXCPIN) in sync_mode()
4300 if (info->params.flags & HDLC_FLAG_RXC_BRG) in sync_mode()
4302 else if (info->params.flags & HDLC_FLAG_RXC_DPLL) in sync_mode()
4304 else if (info->params.flags & HDLC_FLAG_RXC_TXCPIN) in sync_mode()
4307 if (info->params.clock_speed) in sync_mode()
4310 wr_reg8(info, CCR, (unsigned char)val); in sync_mode()
4312 if (info->params.flags & (HDLC_FLAG_TXC_DPLL + HDLC_FLAG_RXC_DPLL)) in sync_mode()
4315 switch(info->params.encoding) in sync_mode()
4325 wr_reg16(info, RCR, (unsigned short)(rd_reg16(info, RCR) | val)); in sync_mode()
4328 set_rate(info, info->params.clock_speed * 16); in sync_mode()
4331 set_rate(info, info->params.clock_speed); in sync_mode()
4333 tx_set_idle(info); in sync_mode()
4335 msc_set_vcr(info); in sync_mode()
4356 wr_reg16(info, SCR, BIT15 + BIT14 + BIT0); in sync_mode()
4358 if (info->params.loopback) in sync_mode()
4359 enable_loopback(info); in sync_mode()
4365 static void tx_set_idle(struct slgt_info *info) in tx_set_idle() argument
4373 tcr = rd_reg16(info, TCR); in tx_set_idle()
4374 if (info->idle_mode & HDLC_TXIDLE_CUSTOM_16) { in tx_set_idle()
4378 wr_reg8(info, TPR, (unsigned char)((info->idle_mode >> 8) & 0xff)); in tx_set_idle()
4383 wr_reg16(info, TCR, tcr); in tx_set_idle()
4385 if (info->idle_mode & (HDLC_TXIDLE_CUSTOM_8 | HDLC_TXIDLE_CUSTOM_16)) { in tx_set_idle()
4387 val = (unsigned char)(info->idle_mode & 0xff); in tx_set_idle()
4390 switch(info->idle_mode) in tx_set_idle()
4401 wr_reg8(info, TIR, val); in tx_set_idle()
4407 static void get_gtsignals(struct slgt_info *info) in get_gtsignals() argument
4409 unsigned short status = rd_reg16(info, SSR); in get_gtsignals()
4412 info->signals &= SerialSignal_RTS | SerialSignal_DTR; in get_gtsignals()
4415 info->signals |= SerialSignal_DSR; in get_gtsignals()
4417 info->signals |= SerialSignal_CTS; in get_gtsignals()
4419 info->signals |= SerialSignal_DCD; in get_gtsignals()
4421 info->signals |= SerialSignal_RI; in get_gtsignals()
4427 static void msc_set_vcr(struct slgt_info *info) in msc_set_vcr() argument
4440 switch(info->if_mode & MGSL_INTERFACE_MASK) in msc_set_vcr()
4453 if (info->if_mode & MGSL_INTERFACE_MSB_FIRST) in msc_set_vcr()
4455 if (info->signals & SerialSignal_DTR) in msc_set_vcr()
4457 if (info->signals & SerialSignal_RTS) in msc_set_vcr()
4459 if (info->if_mode & MGSL_INTERFACE_LL) in msc_set_vcr()
4461 if (info->if_mode & MGSL_INTERFACE_RL) in msc_set_vcr()
4463 wr_reg8(info, VCR, val); in msc_set_vcr()
4469 static void set_gtsignals(struct slgt_info *info) in set_gtsignals() argument
4471 unsigned char val = rd_reg8(info, VCR); in set_gtsignals()
4472 if (info->signals & SerialSignal_DTR) in set_gtsignals()
4476 if (info->signals & SerialSignal_RTS) in set_gtsignals()
4480 wr_reg8(info, VCR, val); in set_gtsignals()
4486 static void free_rbufs(struct slgt_info *info, unsigned int i, unsigned int last) in free_rbufs() argument
4492 info->rbufs[i].status = 0; in free_rbufs()
4493 set_desc_count(info->rbufs[i], info->rbuf_fill_level); in free_rbufs()
4496 if (++i == info->rbuf_count) in free_rbufs()
4499 info->rbuf_current = i; in free_rbufs()
4505 static void reset_rbufs(struct slgt_info *info) in reset_rbufs() argument
4507 free_rbufs(info, 0, info->rbuf_count - 1); in reset_rbufs()
4508 info->rbuf_fill_index = 0; in reset_rbufs()
4509 info->rbuf_fill_count = 0; in reset_rbufs()
4517 static bool rx_get_frame(struct slgt_info *info) in rx_get_frame() argument
4523 struct tty_struct *tty = info->port.tty; in rx_get_frame()
4527 switch (info->params.crc_type & HDLC_CRC_MASK) { in rx_get_frame()
4536 start = end = info->rbuf_current; in rx_get_frame()
4539 if (!desc_complete(info->rbufs[end])) in rx_get_frame()
4542 if (framesize == 0 && info->params.addr_filter != 0xff) in rx_get_frame()
4543 addr_field = info->rbufs[end].buf[0]; in rx_get_frame()
4545 framesize += desc_count(info->rbufs[end]); in rx_get_frame()
4547 if (desc_eof(info->rbufs[end])) in rx_get_frame()
4550 if (++end == info->rbuf_count) in rx_get_frame()
4553 if (end == info->rbuf_current) { in rx_get_frame()
4554 if (info->rx_enabled){ in rx_get_frame()
4555 spin_lock_irqsave(&info->lock,flags); in rx_get_frame()
4556 rx_start(info); in rx_get_frame()
4557 spin_unlock_irqrestore(&info->lock,flags); in rx_get_frame()
4572 status = desc_status(info->rbufs[end]); in rx_get_frame()
4575 if ((info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_NONE) in rx_get_frame()
4579 (addr_field != 0xff && addr_field != info->params.addr_filter)) { in rx_get_frame()
4580 free_rbufs(info, start, end); in rx_get_frame()
4585 info->icount.rxshort++; in rx_get_frame()
4588 info->icount.rxcrc++; in rx_get_frame()
4589 if (!(info->params.crc_type & HDLC_CRC_RETURN_EX)) in rx_get_frame()
4595 info->netdev->stats.rx_errors++; in rx_get_frame()
4596 info->netdev->stats.rx_frame_errors++; in rx_get_frame()
4601 info->device_name, status, framesize)); in rx_get_frame()
4602 DBGDATA(info, info->rbufs[start].buf, min_t(int, framesize, info->rbuf_fill_level), "rx"); in rx_get_frame()
4605 if (!(info->params.crc_type & HDLC_CRC_RETURN_EX)) { in rx_get_frame()
4610 if (framesize > info->max_frame_size + crc_size) in rx_get_frame()
4611 info->icount.rxlong++; in rx_get_frame()
4616 unsigned char *p = info->tmp_rbuf; in rx_get_frame()
4617 info->tmp_rbuf_count = framesize; in rx_get_frame()
4619 info->icount.rxok++; in rx_get_frame()
4622 int partial_count = min_t(int, copy_count, info->rbuf_fill_level); in rx_get_frame()
4623 memcpy(p, info->rbufs[i].buf, partial_count); in rx_get_frame()
4626 if (++i == info->rbuf_count) in rx_get_frame()
4630 if (info->params.crc_type & HDLC_CRC_RETURN_EX) { in rx_get_frame()
4636 if (info->netcount) in rx_get_frame()
4637 hdlcdev_rx(info,info->tmp_rbuf, framesize); in rx_get_frame()
4640 ldisc_receive_buf(tty, info->tmp_rbuf, NULL, in rx_get_frame()
4644 free_rbufs(info, start, end); in rx_get_frame()
4655 static bool rx_get_buf(struct slgt_info *info) in rx_get_buf() argument
4657 unsigned int i = info->rbuf_current; in rx_get_buf()
4660 if (!desc_complete(info->rbufs[i])) in rx_get_buf()
4662 count = desc_count(info->rbufs[i]); in rx_get_buf()
4663 switch(info->params.mode) { in rx_get_buf()
4668 if (desc_residue(info->rbufs[i])) in rx_get_buf()
4672 DBGDATA(info, info->rbufs[i].buf, count, "rx"); in rx_get_buf()
4675 ldisc_receive_buf(info->port.tty, info->rbufs[i].buf, NULL, in rx_get_buf()
4677 free_rbufs(info, i, i); in rx_get_buf()
4681 static void reset_tbufs(struct slgt_info *info) in reset_tbufs() argument
4684 info->tbuf_current = 0; in reset_tbufs()
4685 for (i=0 ; i < info->tbuf_count ; i++) { in reset_tbufs()
4686 info->tbufs[i].status = 0; in reset_tbufs()
4687 info->tbufs[i].count = 0; in reset_tbufs()
4694 static unsigned int free_tbuf_count(struct slgt_info *info) in free_tbuf_count() argument
4697 unsigned int i = info->tbuf_current; in free_tbuf_count()
4701 if (desc_count(info->tbufs[i])) in free_tbuf_count()
4704 if (++i == info->tbuf_count) in free_tbuf_count()
4706 } while (i != info->tbuf_current); in free_tbuf_count()
4709 if (count && (rd_reg32(info, TDCSR) & BIT0)) in free_tbuf_count()
4719 static unsigned int tbuf_bytes(struct slgt_info *info) in tbuf_bytes() argument
4722 unsigned int i = info->tbuf_current; in tbuf_bytes()
4739 count = desc_count(info->tbufs[i]); in tbuf_bytes()
4743 active_buf_count = info->tbufs[i].buf_count; in tbuf_bytes()
4744 if (++i == info->tbuf_count) in tbuf_bytes()
4746 } while (i != info->tbuf_current); in tbuf_bytes()
4749 reg_value = rd_reg32(info, TDCSR); in tbuf_bytes()
4759 if (info->tx_active) in tbuf_bytes()
4769 static bool tx_load(struct slgt_info *info, const u8 *buf, unsigned int size) in tx_load() argument
4776 if (DIV_ROUND_UP(size, DMABUFSIZE) > free_tbuf_count(info)) in tx_load()
4779 DBGDATA(info, buf, size, "tx"); in tx_load()
4792 info->tbuf_start = i = info->tbuf_current; in tx_load()
4795 d = &info->tbufs[i]; in tx_load()
4807 if ((!size && info->params.mode == MGSL_MODE_HDLC) || in tx_load()
4808 info->params.mode == MGSL_MODE_RAW) in tx_load()
4814 if (i != info->tbuf_start) in tx_load()
4818 if (++i == info->tbuf_count) in tx_load()
4822 info->tbuf_current = i; in tx_load()
4825 d = &info->tbufs[info->tbuf_start]; in tx_load()
4829 if (!info->tx_active) in tx_load()
4830 tx_start(info); in tx_load()
4831 update_tx_timer(info); in tx_load()
4836 static int register_test(struct slgt_info *info) in register_test() argument
4845 wr_reg16(info, TIR, patterns[i]); in register_test()
4846 wr_reg16(info, BDR, patterns[(i+1)%count]); in register_test()
4847 if ((rd_reg16(info, TIR) != patterns[i]) || in register_test()
4848 (rd_reg16(info, BDR) != patterns[(i+1)%count])) { in register_test()
4853 info->gpio_present = (rd_reg32(info, JCR) & BIT5) ? 1 : 0; in register_test()
4854 info->init_error = rc ? 0 : DiagStatus_AddressFailure; in register_test()
4858 static int irq_test(struct slgt_info *info) in irq_test() argument
4862 struct tty_struct *oldtty = info->port.tty; in irq_test()
4863 u32 speed = info->params.data_rate; in irq_test()
4865 info->params.data_rate = 921600; in irq_test()
4866 info->port.tty = NULL; in irq_test()
4868 spin_lock_irqsave(&info->lock, flags); in irq_test()
4869 async_mode(info); in irq_test()
4870 slgt_irq_on(info, IRQ_TXIDLE); in irq_test()
4873 wr_reg16(info, TCR, in irq_test()
4874 (unsigned short)(rd_reg16(info, TCR) | BIT1)); in irq_test()
4877 wr_reg16(info, TDR, 0); in irq_test()
4880 info->init_error = DiagStatus_IrqFailure; in irq_test()
4881 info->irq_occurred = false; in irq_test()
4883 spin_unlock_irqrestore(&info->lock, flags); in irq_test()
4886 while(timeout-- && !info->irq_occurred) in irq_test()
4889 spin_lock_irqsave(&info->lock,flags); in irq_test()
4890 reset_port(info); in irq_test()
4891 spin_unlock_irqrestore(&info->lock,flags); in irq_test()
4893 info->params.data_rate = speed; in irq_test()
4894 info->port.tty = oldtty; in irq_test()
4896 info->init_error = info->irq_occurred ? 0 : DiagStatus_IrqFailure; in irq_test()
4897 return info->irq_occurred ? 0 : -ENODEV; in irq_test()
4900 static int loopback_test_rx(struct slgt_info *info) in loopback_test_rx() argument
4905 if (desc_complete(info->rbufs[0])) { in loopback_test_rx()
4906 count = desc_count(info->rbufs[0]); in loopback_test_rx()
4907 src = info->rbufs[0].buf; in loopback_test_rx()
4908 dest = info->tmp_rbuf; in loopback_test_rx()
4915 info->tmp_rbuf_count++; in loopback_test_rx()
4918 DBGDATA(info, info->tmp_rbuf, info->tmp_rbuf_count, "rx"); in loopback_test_rx()
4924 static int loopback_test(struct slgt_info *info) in loopback_test() argument
4934 struct tty_struct *oldtty = info->port.tty; in loopback_test()
4937 memcpy(¶ms, &info->params, sizeof(params)); in loopback_test()
4939 info->params.mode = MGSL_MODE_ASYNC; in loopback_test()
4940 info->params.data_rate = 921600; in loopback_test()
4941 info->params.loopback = 1; in loopback_test()
4942 info->port.tty = NULL; in loopback_test()
4948 info->tmp_rbuf_count = 0; in loopback_test()
4949 memset(info->tmp_rbuf, 0, TESTFRAMESIZE); in loopback_test()
4952 spin_lock_irqsave(&info->lock,flags); in loopback_test()
4953 async_mode(info); in loopback_test()
4954 rx_start(info); in loopback_test()
4955 tx_load(info, buf, count); in loopback_test()
4956 spin_unlock_irqrestore(&info->lock, flags); in loopback_test()
4961 if (loopback_test_rx(info)) { in loopback_test()
4968 if (!rc && (info->tmp_rbuf_count != count || in loopback_test()
4969 memcmp(buf, info->tmp_rbuf, count))) { in loopback_test()
4973 spin_lock_irqsave(&info->lock,flags); in loopback_test()
4974 reset_adapter(info); in loopback_test()
4975 spin_unlock_irqrestore(&info->lock,flags); in loopback_test()
4977 memcpy(&info->params, ¶ms, sizeof(info->params)); in loopback_test()
4978 info->port.tty = oldtty; in loopback_test()
4980 info->init_error = rc ? DiagStatus_DmaFailure : 0; in loopback_test()
4984 static int adapter_test(struct slgt_info *info) in adapter_test() argument
4986 DBGINFO(("testing %s\n", info->device_name)); in adapter_test()
4987 if (register_test(info) < 0) { in adapter_test()
4989 info->device_name, info->phys_reg_addr); in adapter_test()
4990 } else if (irq_test(info) < 0) { in adapter_test()
4992 info->device_name, info->irq_level); in adapter_test()
4993 } else if (loopback_test(info) < 0) { in adapter_test()
4994 printk("loopback test failure %s\n", info->device_name); in adapter_test()
4996 return info->init_error; in adapter_test()
5004 struct slgt_info *info = from_timer(info, t, tx_timer); in tx_timeout() local
5007 DBGINFO(("%s tx_timeout\n", info->device_name)); in tx_timeout()
5008 if(info->tx_active && info->params.mode == MGSL_MODE_HDLC) { in tx_timeout()
5009 info->icount.txtimeout++; in tx_timeout()
5011 spin_lock_irqsave(&info->lock,flags); in tx_timeout()
5012 tx_stop(info); in tx_timeout()
5013 spin_unlock_irqrestore(&info->lock,flags); in tx_timeout()
5016 if (info->netcount) in tx_timeout()
5017 hdlcdev_tx_done(info); in tx_timeout()
5020 bh_transmit(info); in tx_timeout()
5028 struct slgt_info *info = from_timer(info, t, rx_timer); in rx_timeout() local
5031 DBGINFO(("%s rx_timeout\n", info->device_name)); in rx_timeout()
5032 spin_lock_irqsave(&info->lock, flags); in rx_timeout()
5033 info->pending_bh |= BH_RECEIVE; in rx_timeout()
5034 spin_unlock_irqrestore(&info->lock, flags); in rx_timeout()
5035 bh_handler(&info->task); in rx_timeout()