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()
676 if (info->port.flags & ASYNC_CLOSING){ in open()
677 wait_event_interruptible_tty(tty, info->port.close_wait, in open()
678 !(info->port.flags & ASYNC_CLOSING)); in open()
679 retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ? in open()
684 mutex_lock(&info->port.mutex); in open()
685 info->port.low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0; in open()
687 spin_lock_irqsave(&info->netlock, flags); in open()
688 if (info->netcount) { in open()
690 spin_unlock_irqrestore(&info->netlock, flags); in open()
691 mutex_unlock(&info->port.mutex); in open()
694 info->port.count++; in open()
695 spin_unlock_irqrestore(&info->netlock, flags); in open()
697 if (info->port.count == 1) { in open()
699 retval = startup(info); in open()
701 mutex_unlock(&info->port.mutex); in open()
705 mutex_unlock(&info->port.mutex); in open()
706 retval = block_til_ready(tty, filp, info); in open()
708 DBGINFO(("%s block_til_ready rc=%d\n", info->device_name, retval)); in open()
717 info->port.tty = NULL; /* tty layer will release tty struct */ in open()
718 if(info->port.count) in open()
719 info->port.count--; in open()
722 DBGINFO(("%s open rc=%d\n", info->device_name, retval)); in open()
728 struct slgt_info *info = tty->driver_data; in close() local
730 if (sanity_check(info, tty->name, "close")) in close()
732 DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count)); in close()
734 if (tty_port_close_start(&info->port, tty, filp) == 0) in close()
737 mutex_lock(&info->port.mutex); in close()
738 if (info->port.flags & ASYNC_INITIALIZED) in close()
739 wait_until_sent(tty, info->timeout); in close()
743 shutdown(info); in close()
744 mutex_unlock(&info->port.mutex); in close()
746 tty_port_close_end(&info->port, tty); in close()
747 info->port.tty = NULL; in close()
749 DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count)); in close()
754 struct slgt_info *info = tty->driver_data; in hangup() local
757 if (sanity_check(info, tty->name, "hangup")) in hangup()
759 DBGINFO(("%s hangup\n", info->device_name)); in hangup()
763 mutex_lock(&info->port.mutex); in hangup()
764 shutdown(info); in hangup()
766 spin_lock_irqsave(&info->port.lock, flags); in hangup()
767 info->port.count = 0; in hangup()
768 info->port.flags &= ~ASYNC_NORMAL_ACTIVE; in hangup()
769 info->port.tty = NULL; in hangup()
770 spin_unlock_irqrestore(&info->port.lock, flags); in hangup()
771 mutex_unlock(&info->port.mutex); in hangup()
773 wake_up_interruptible(&info->port.open_wait); in hangup()
778 struct slgt_info *info = tty->driver_data; in set_termios() local
783 change_params(info); in set_termios()
788 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in set_termios()
789 spin_lock_irqsave(&info->lock,flags); in set_termios()
790 set_signals(info); in set_termios()
791 spin_unlock_irqrestore(&info->lock,flags); in set_termios()
797 info->signals |= SerialSignal_DTR; in set_termios()
800 info->signals |= SerialSignal_RTS; in set_termios()
802 spin_lock_irqsave(&info->lock,flags); in set_termios()
803 set_signals(info); in set_termios()
804 spin_unlock_irqrestore(&info->lock,flags); in set_termios()
815 static void update_tx_timer(struct slgt_info *info) in update_tx_timer() argument
821 if (info->params.mode == MGSL_MODE_HDLC) { in update_tx_timer()
822 int timeout = (tbuf_bytes(info) * 7) + 1000; in update_tx_timer()
823 mod_timer(&info->tx_timer, jiffies + msecs_to_jiffies(timeout)); in update_tx_timer()
831 struct slgt_info *info = tty->driver_data; in write() local
834 if (sanity_check(info, tty->name, "write")) in write()
837 DBGINFO(("%s write count=%d\n", info->device_name, count)); in write()
839 if (!info->tx_buf || (count > info->max_frame_size)) in write()
845 spin_lock_irqsave(&info->lock, flags); in write()
847 if (info->tx_count) { in write()
849 if (!tx_load(info, info->tx_buf, info->tx_count)) in write()
851 info->tx_count = 0; in write()
854 if (tx_load(info, buf, count)) in write()
858 spin_unlock_irqrestore(&info->lock, flags); in write()
859 DBGINFO(("%s write rc=%d\n", info->device_name, ret)); in write()
865 struct slgt_info *info = tty->driver_data; in put_char() local
869 if (sanity_check(info, tty->name, "put_char")) in put_char()
871 DBGINFO(("%s put_char(%d)\n", info->device_name, ch)); in put_char()
872 if (!info->tx_buf) in put_char()
874 spin_lock_irqsave(&info->lock,flags); in put_char()
875 if (info->tx_count < info->max_frame_size) { in put_char()
876 info->tx_buf[info->tx_count++] = ch; in put_char()
879 spin_unlock_irqrestore(&info->lock,flags); in put_char()
885 struct slgt_info *info = tty->driver_data; in send_xchar() local
888 if (sanity_check(info, tty->name, "send_xchar")) in send_xchar()
890 DBGINFO(("%s send_xchar(%d)\n", info->device_name, ch)); in send_xchar()
891 info->x_char = ch; in send_xchar()
893 spin_lock_irqsave(&info->lock,flags); in send_xchar()
894 if (!info->tx_enabled) in send_xchar()
895 tx_start(info); in send_xchar()
896 spin_unlock_irqrestore(&info->lock,flags); in send_xchar()
902 struct slgt_info *info = tty->driver_data; in wait_until_sent() local
905 if (!info ) in wait_until_sent()
907 if (sanity_check(info, tty->name, "wait_until_sent")) in wait_until_sent()
909 DBGINFO(("%s wait_until_sent entry\n", info->device_name)); in wait_until_sent()
910 if (!(info->port.flags & ASYNC_INITIALIZED)) in wait_until_sent()
921 if (info->params.data_rate) { in wait_until_sent()
922 char_time = info->timeout/(32 * 5); in wait_until_sent()
931 while (info->tx_active) { in wait_until_sent()
939 DBGINFO(("%s wait_until_sent exit\n", info->device_name)); in wait_until_sent()
944 struct slgt_info *info = tty->driver_data; in write_room() local
947 if (sanity_check(info, tty->name, "write_room")) in write_room()
949 ret = (info->tx_active) ? 0 : HDLC_MAX_FRAME_SIZE; in write_room()
950 DBGINFO(("%s write_room=%d\n", info->device_name, ret)); in write_room()
956 struct slgt_info *info = tty->driver_data; in flush_chars() local
959 if (sanity_check(info, tty->name, "flush_chars")) in flush_chars()
961 DBGINFO(("%s flush_chars entry tx_count=%d\n", info->device_name, info->tx_count)); in flush_chars()
963 if (info->tx_count <= 0 || tty->stopped || in flush_chars()
964 tty->hw_stopped || !info->tx_buf) in flush_chars()
967 DBGINFO(("%s flush_chars start transmit\n", info->device_name)); in flush_chars()
969 spin_lock_irqsave(&info->lock,flags); in flush_chars()
970 if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count)) in flush_chars()
971 info->tx_count = 0; in flush_chars()
972 spin_unlock_irqrestore(&info->lock,flags); in flush_chars()
977 struct slgt_info *info = tty->driver_data; in flush_buffer() local
980 if (sanity_check(info, tty->name, "flush_buffer")) in flush_buffer()
982 DBGINFO(("%s flush_buffer\n", info->device_name)); in flush_buffer()
984 spin_lock_irqsave(&info->lock, flags); in flush_buffer()
985 info->tx_count = 0; in flush_buffer()
986 spin_unlock_irqrestore(&info->lock, flags); in flush_buffer()
996 struct slgt_info *info = tty->driver_data; in tx_hold() local
999 if (sanity_check(info, tty->name, "tx_hold")) in tx_hold()
1001 DBGINFO(("%s tx_hold\n", info->device_name)); in tx_hold()
1002 spin_lock_irqsave(&info->lock,flags); in tx_hold()
1003 if (info->tx_enabled && info->params.mode == MGSL_MODE_ASYNC) in tx_hold()
1004 tx_stop(info); in tx_hold()
1005 spin_unlock_irqrestore(&info->lock,flags); in tx_hold()
1013 struct slgt_info *info = tty->driver_data; in tx_release() local
1016 if (sanity_check(info, tty->name, "tx_release")) in tx_release()
1018 DBGINFO(("%s tx_release\n", info->device_name)); in tx_release()
1019 spin_lock_irqsave(&info->lock, flags); in tx_release()
1020 if (info->tx_count && tx_load(info, info->tx_buf, info->tx_count)) in tx_release()
1021 info->tx_count = 0; in tx_release()
1022 spin_unlock_irqrestore(&info->lock, flags); in tx_release()
1039 struct slgt_info *info = tty->driver_data; in ioctl() local
1043 if (sanity_check(info, tty->name, "ioctl")) in ioctl()
1045 DBGINFO(("%s ioctl() cmd=%08X\n", info->device_name, cmd)); in ioctl()
1055 return wait_mgsl_event(info, argp); in ioctl()
1057 return modem_input_wait(info,(int)arg); in ioctl()
1059 return set_gpio(info, argp); in ioctl()
1061 return get_gpio(info, argp); in ioctl()
1063 return wait_gpio(info, argp); in ioctl()
1065 return get_xsync(info, argp); in ioctl()
1067 return set_xsync(info, (int)arg); in ioctl()
1069 return get_xctrl(info, argp); in ioctl()
1071 return set_xctrl(info, (int)arg); in ioctl()
1073 mutex_lock(&info->port.mutex); in ioctl()
1076 ret = get_params(info, argp); in ioctl()
1079 ret = set_params(info, argp); in ioctl()
1082 ret = get_txidle(info, argp); in ioctl()
1085 ret = set_txidle(info, (int)arg); in ioctl()
1088 ret = tx_enable(info, (int)arg); in ioctl()
1091 ret = rx_enable(info, (int)arg); in ioctl()
1094 ret = tx_abort(info); in ioctl()
1097 ret = get_stats(info, argp); in ioctl()
1100 ret = get_interface(info, argp); in ioctl()
1103 ret = set_interface(info,(int)arg); in ioctl()
1108 mutex_unlock(&info->port.mutex); in ioctl()
1116 struct slgt_info *info = tty->driver_data; in get_icount() local
1120 spin_lock_irqsave(&info->lock,flags); in get_icount()
1121 cnow = info->icount; in get_icount()
1122 spin_unlock_irqrestore(&info->lock,flags); in get_icount()
1143 static long get_params32(struct slgt_info *info, struct MGSL_PARAMS32 __user *user_params) in get_params32() argument
1147 DBGINFO(("%s get_params32\n", info->device_name)); in get_params32()
1149 tmp_params.mode = (compat_ulong_t)info->params.mode; in get_params32()
1150 tmp_params.loopback = info->params.loopback; in get_params32()
1151 tmp_params.flags = info->params.flags; in get_params32()
1152 tmp_params.encoding = info->params.encoding; in get_params32()
1153 tmp_params.clock_speed = (compat_ulong_t)info->params.clock_speed; in get_params32()
1154 tmp_params.addr_filter = info->params.addr_filter; in get_params32()
1155 tmp_params.crc_type = info->params.crc_type; in get_params32()
1156 tmp_params.preamble_length = info->params.preamble_length; in get_params32()
1157 tmp_params.preamble = info->params.preamble; in get_params32()
1158 tmp_params.data_rate = (compat_ulong_t)info->params.data_rate; in get_params32()
1159 tmp_params.data_bits = info->params.data_bits; in get_params32()
1160 tmp_params.stop_bits = info->params.stop_bits; in get_params32()
1161 tmp_params.parity = info->params.parity; in get_params32()
1167 static long set_params32(struct slgt_info *info, struct MGSL_PARAMS32 __user *new_params) in set_params32() argument
1171 DBGINFO(("%s set_params32\n", info->device_name)); in set_params32()
1175 spin_lock(&info->lock); in set_params32()
1177 info->base_clock = tmp_params.clock_speed; in set_params32()
1179 info->params.mode = tmp_params.mode; in set_params32()
1180 info->params.loopback = tmp_params.loopback; in set_params32()
1181 info->params.flags = tmp_params.flags; in set_params32()
1182 info->params.encoding = tmp_params.encoding; in set_params32()
1183 info->params.clock_speed = tmp_params.clock_speed; in set_params32()
1184 info->params.addr_filter = tmp_params.addr_filter; in set_params32()
1185 info->params.crc_type = tmp_params.crc_type; in set_params32()
1186 info->params.preamble_length = tmp_params.preamble_length; in set_params32()
1187 info->params.preamble = tmp_params.preamble; in set_params32()
1188 info->params.data_rate = tmp_params.data_rate; in set_params32()
1189 info->params.data_bits = tmp_params.data_bits; in set_params32()
1190 info->params.stop_bits = tmp_params.stop_bits; in set_params32()
1191 info->params.parity = tmp_params.parity; in set_params32()
1193 spin_unlock(&info->lock); in set_params32()
1195 program_hw(info); in set_params32()
1203 struct slgt_info *info = tty->driver_data; in slgt_compat_ioctl() local
1206 if (sanity_check(info, tty->name, "compat_ioctl")) in slgt_compat_ioctl()
1208 DBGINFO(("%s compat_ioctl() cmd=%08X\n", info->device_name, cmd)); in slgt_compat_ioctl()
1213 rc = set_params32(info, compat_ptr(arg)); in slgt_compat_ioctl()
1217 rc = get_params32(info, compat_ptr(arg)); in slgt_compat_ioctl()
1243 DBGINFO(("%s compat_ioctl() cmd=%08X rc=%d\n", info->device_name, cmd, rc)); in slgt_compat_ioctl()
1253 static inline void line_info(struct seq_file *m, struct slgt_info *info) in line_info() argument
1259 info->device_name, info->phys_reg_addr, in line_info()
1260 info->irq_level, info->max_frame_size); in line_info()
1263 spin_lock_irqsave(&info->lock,flags); in line_info()
1264 get_signals(info); in line_info()
1265 spin_unlock_irqrestore(&info->lock,flags); in line_info()
1269 if (info->signals & SerialSignal_RTS) in line_info()
1271 if (info->signals & SerialSignal_CTS) in line_info()
1273 if (info->signals & SerialSignal_DTR) in line_info()
1275 if (info->signals & SerialSignal_DSR) in line_info()
1277 if (info->signals & SerialSignal_DCD) in line_info()
1279 if (info->signals & SerialSignal_RI) in line_info()
1282 if (info->params.mode != MGSL_MODE_ASYNC) { in line_info()
1284 info->icount.txok, info->icount.rxok); in line_info()
1285 if (info->icount.txunder) in line_info()
1286 seq_printf(m, " txunder:%d", info->icount.txunder); in line_info()
1287 if (info->icount.txabort) in line_info()
1288 seq_printf(m, " txabort:%d", info->icount.txabort); in line_info()
1289 if (info->icount.rxshort) in line_info()
1290 seq_printf(m, " rxshort:%d", info->icount.rxshort); in line_info()
1291 if (info->icount.rxlong) in line_info()
1292 seq_printf(m, " rxlong:%d", info->icount.rxlong); in line_info()
1293 if (info->icount.rxover) in line_info()
1294 seq_printf(m, " rxover:%d", info->icount.rxover); in line_info()
1295 if (info->icount.rxcrc) in line_info()
1296 seq_printf(m, " rxcrc:%d", info->icount.rxcrc); in line_info()
1299 info->icount.tx, info->icount.rx); in line_info()
1300 if (info->icount.frame) in line_info()
1301 seq_printf(m, " fe:%d", info->icount.frame); in line_info()
1302 if (info->icount.parity) in line_info()
1303 seq_printf(m, " pe:%d", info->icount.parity); in line_info()
1304 if (info->icount.brk) in line_info()
1305 seq_printf(m, " brk:%d", info->icount.brk); in line_info()
1306 if (info->icount.overrun) in line_info()
1307 seq_printf(m, " oe:%d", info->icount.overrun); in line_info()
1314 info->tx_active,info->bh_requested,info->bh_running, in line_info()
1315 info->pending_bh); in line_info()
1322 struct slgt_info *info; in synclink_gt_proc_show() local
1326 info = slgt_device_list; in synclink_gt_proc_show()
1327 while( info ) { in synclink_gt_proc_show()
1328 line_info(m, info); in synclink_gt_proc_show()
1329 info = info->next_device; in synclink_gt_proc_show()
1352 struct slgt_info *info = tty->driver_data; in chars_in_buffer() local
1354 if (sanity_check(info, tty->name, "chars_in_buffer")) in chars_in_buffer()
1356 count = tbuf_bytes(info); in chars_in_buffer()
1357 DBGINFO(("%s chars_in_buffer()=%d\n", info->device_name, count)); in chars_in_buffer()
1366 struct slgt_info *info = tty->driver_data; in throttle() local
1369 if (sanity_check(info, tty->name, "throttle")) in throttle()
1371 DBGINFO(("%s throttle\n", info->device_name)); in throttle()
1375 spin_lock_irqsave(&info->lock,flags); in throttle()
1376 info->signals &= ~SerialSignal_RTS; in throttle()
1377 set_signals(info); in throttle()
1378 spin_unlock_irqrestore(&info->lock,flags); in throttle()
1387 struct slgt_info *info = tty->driver_data; in unthrottle() local
1390 if (sanity_check(info, tty->name, "unthrottle")) in unthrottle()
1392 DBGINFO(("%s unthrottle\n", info->device_name)); in unthrottle()
1394 if (info->x_char) in unthrottle()
1395 info->x_char = 0; in unthrottle()
1400 spin_lock_irqsave(&info->lock,flags); in unthrottle()
1401 info->signals |= SerialSignal_RTS; in unthrottle()
1402 set_signals(info); in unthrottle()
1403 spin_unlock_irqrestore(&info->lock,flags); in unthrottle()
1413 struct slgt_info *info = tty->driver_data; in set_break() local
1417 if (sanity_check(info, tty->name, "set_break")) in set_break()
1419 DBGINFO(("%s set_break(%d)\n", info->device_name, break_state)); in set_break()
1421 spin_lock_irqsave(&info->lock,flags); in set_break()
1422 value = rd_reg16(info, TCR); in set_break()
1427 wr_reg16(info, TCR, value); in set_break()
1428 spin_unlock_irqrestore(&info->lock,flags); in set_break()
1447 struct slgt_info *info = dev_to_port(dev); in hdlcdev_attach() local
1452 if (info->port.count) in hdlcdev_attach()
1455 DBGINFO(("%s hdlcdev_attach\n", info->device_name)); in hdlcdev_attach()
1475 info->params.encoding = new_encoding; in hdlcdev_attach()
1476 info->params.crc_type = new_crctype; in hdlcdev_attach()
1479 if (info->netcount) in hdlcdev_attach()
1480 program_hw(info); in hdlcdev_attach()
1494 struct slgt_info *info = dev_to_port(dev); in hdlcdev_xmit() local
1512 spin_lock_irqsave(&info->lock, flags); in hdlcdev_xmit()
1513 tx_load(info, skb->data, skb->len); in hdlcdev_xmit()
1514 spin_unlock_irqrestore(&info->lock, flags); in hdlcdev_xmit()
1532 struct slgt_info *info = dev_to_port(dev); in hdlcdev_open() local
1546 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_open()
1547 if (info->port.count != 0 || info->netcount != 0) { in hdlcdev_open()
1549 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1552 info->netcount=1; in hdlcdev_open()
1553 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1556 if ((rc = startup(info)) != 0) { in hdlcdev_open()
1557 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_open()
1558 info->netcount=0; in hdlcdev_open()
1559 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_open()
1564 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in hdlcdev_open()
1565 program_hw(info); in hdlcdev_open()
1572 spin_lock_irqsave(&info->lock, flags); in hdlcdev_open()
1573 get_signals(info); in hdlcdev_open()
1574 spin_unlock_irqrestore(&info->lock, flags); in hdlcdev_open()
1575 if (info->signals & SerialSignal_DCD) in hdlcdev_open()
1592 struct slgt_info *info = dev_to_port(dev); in hdlcdev_close() local
1600 shutdown(info); in hdlcdev_close()
1604 spin_lock_irqsave(&info->netlock, flags); in hdlcdev_close()
1605 info->netcount=0; in hdlcdev_close()
1606 spin_unlock_irqrestore(&info->netlock, flags); in hdlcdev_close()
1626 struct slgt_info *info = dev_to_port(dev); in hdlcdev_ioctl() local
1632 if (info->port.count) in hdlcdev_ioctl()
1649 flags = info->params.flags & (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL | in hdlcdev_ioctl()
1662 new_line.clock_rate = info->params.clock_speed; in hdlcdev_ioctl()
1663 new_line.loopback = info->params.loopback ? 1:0; in hdlcdev_ioctl()
1682 case CLOCK_DEFAULT: flags = info->params.flags & in hdlcdev_ioctl()
1693 info->params.flags &= ~(HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL | in hdlcdev_ioctl()
1697 info->params.flags |= flags; in hdlcdev_ioctl()
1699 info->params.loopback = new_line.loopback; in hdlcdev_ioctl()
1702 info->params.clock_speed = new_line.clock_rate; in hdlcdev_ioctl()
1704 info->params.clock_speed = 0; in hdlcdev_ioctl()
1707 if (info->netcount) in hdlcdev_ioctl()
1708 program_hw(info); in hdlcdev_ioctl()
1723 struct slgt_info *info = dev_to_port(dev); in hdlcdev_tx_timeout() local
1731 spin_lock_irqsave(&info->lock,flags); in hdlcdev_tx_timeout()
1732 tx_stop(info); in hdlcdev_tx_timeout()
1733 spin_unlock_irqrestore(&info->lock,flags); in hdlcdev_tx_timeout()
1744 static void hdlcdev_tx_done(struct slgt_info *info) in hdlcdev_tx_done() argument
1746 if (netif_queue_stopped(info->netdev)) in hdlcdev_tx_done()
1747 netif_wake_queue(info->netdev); in hdlcdev_tx_done()
1758 static void hdlcdev_rx(struct slgt_info *info, char *buf, int size) in hdlcdev_rx() argument
1761 struct net_device *dev = info->netdev; in hdlcdev_rx()
1798 static int hdlcdev_init(struct slgt_info *info) in hdlcdev_init() argument
1806 if (!(dev = alloc_hdlcdev(info))) { in hdlcdev_init()
1807 printk(KERN_ERR "%s hdlc device alloc failure\n", info->device_name); in hdlcdev_init()
1812 dev->mem_start = info->phys_reg_addr; in hdlcdev_init()
1813 dev->mem_end = info->phys_reg_addr + SLGT_REG_SIZE - 1; in hdlcdev_init()
1814 dev->irq = info->irq_level; in hdlcdev_init()
1833 info->netdev = dev; in hdlcdev_init()
1843 static void hdlcdev_exit(struct slgt_info *info) in hdlcdev_exit() argument
1845 unregister_hdlc_device(info->netdev); in hdlcdev_exit()
1846 free_netdev(info->netdev); in hdlcdev_exit()
1847 info->netdev = NULL; in hdlcdev_exit()
1855 static void rx_async(struct slgt_info *info) in rx_async() argument
1857 struct mgsl_icount *icount = &info->icount; in rx_async()
1861 struct slgt_desc *bufs = info->rbufs; in rx_async()
1867 start = end = info->rbuf_current; in rx_async()
1870 count = desc_count(bufs[end]) - info->rbuf_index; in rx_async()
1871 p = bufs[end].buf + info->rbuf_index; in rx_async()
1873 DBGISR(("%s rx_async count=%d\n", info->device_name, count)); in rx_async()
1874 DBGDATA(info, p, count, "rx"); in rx_async()
1888 if (status & info->ignore_status_mask) in rx_async()
1895 tty_insert_flip_char(&info->port, ch, stat); in rx_async()
1901 info->rbuf_index += i; in rx_async()
1902 mod_timer(&info->rx_timer, jiffies + 1); in rx_async()
1906 info->rbuf_index = 0; in rx_async()
1907 free_rbufs(info, end, end); in rx_async()
1909 if (++end == info->rbuf_count) in rx_async()
1918 tty_flip_buffer_push(&info->port); in rx_async()
1924 static int bh_action(struct slgt_info *info) in bh_action() argument
1929 spin_lock_irqsave(&info->lock,flags); in bh_action()
1931 if (info->pending_bh & BH_RECEIVE) { in bh_action()
1932 info->pending_bh &= ~BH_RECEIVE; in bh_action()
1934 } else if (info->pending_bh & BH_TRANSMIT) { in bh_action()
1935 info->pending_bh &= ~BH_TRANSMIT; in bh_action()
1937 } else if (info->pending_bh & BH_STATUS) { in bh_action()
1938 info->pending_bh &= ~BH_STATUS; in bh_action()
1942 info->bh_running = false; in bh_action()
1943 info->bh_requested = false; in bh_action()
1947 spin_unlock_irqrestore(&info->lock,flags); in bh_action()
1957 struct slgt_info *info = container_of(work, struct slgt_info, task); in bh_handler() local
1960 info->bh_running = true; in bh_handler()
1962 while((action = bh_action(info))) { in bh_handler()
1965 DBGBH(("%s bh receive\n", info->device_name)); in bh_handler()
1966 switch(info->params.mode) { in bh_handler()
1968 rx_async(info); in bh_handler()
1971 while(rx_get_frame(info)); in bh_handler()
1977 while(rx_get_buf(info)); in bh_handler()
1981 if (info->rx_restart) in bh_handler()
1982 rx_start(info); in bh_handler()
1985 bh_transmit(info); in bh_handler()
1988 DBGBH(("%s bh status\n", info->device_name)); in bh_handler()
1989 info->ri_chkcount = 0; in bh_handler()
1990 info->dsr_chkcount = 0; in bh_handler()
1991 info->dcd_chkcount = 0; in bh_handler()
1992 info->cts_chkcount = 0; in bh_handler()
1995 DBGBH(("%s unknown action\n", info->device_name)); in bh_handler()
1999 DBGBH(("%s bh_handler exit\n", info->device_name)); in bh_handler()
2002 static void bh_transmit(struct slgt_info *info) in bh_transmit() argument
2004 struct tty_struct *tty = info->port.tty; in bh_transmit()
2006 DBGBH(("%s bh_transmit\n", info->device_name)); in bh_transmit()
2011 static void dsr_change(struct slgt_info *info, unsigned short status) in dsr_change() argument
2014 info->signals |= SerialSignal_DSR; in dsr_change()
2015 info->input_signal_events.dsr_up++; in dsr_change()
2017 info->signals &= ~SerialSignal_DSR; in dsr_change()
2018 info->input_signal_events.dsr_down++; in dsr_change()
2020 DBGISR(("dsr_change %s signals=%04X\n", info->device_name, info->signals)); in dsr_change()
2021 if ((info->dsr_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in dsr_change()
2022 slgt_irq_off(info, IRQ_DSR); in dsr_change()
2025 info->icount.dsr++; in dsr_change()
2026 wake_up_interruptible(&info->status_event_wait_q); in dsr_change()
2027 wake_up_interruptible(&info->event_wait_q); in dsr_change()
2028 info->pending_bh |= BH_STATUS; in dsr_change()
2031 static void cts_change(struct slgt_info *info, unsigned short status) in cts_change() argument
2034 info->signals |= SerialSignal_CTS; in cts_change()
2035 info->input_signal_events.cts_up++; in cts_change()
2037 info->signals &= ~SerialSignal_CTS; in cts_change()
2038 info->input_signal_events.cts_down++; in cts_change()
2040 DBGISR(("cts_change %s signals=%04X\n", info->device_name, info->signals)); in cts_change()
2041 if ((info->cts_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in cts_change()
2042 slgt_irq_off(info, IRQ_CTS); in cts_change()
2045 info->icount.cts++; in cts_change()
2046 wake_up_interruptible(&info->status_event_wait_q); in cts_change()
2047 wake_up_interruptible(&info->event_wait_q); in cts_change()
2048 info->pending_bh |= BH_STATUS; in cts_change()
2050 if (tty_port_cts_enabled(&info->port)) { in cts_change()
2051 if (info->port.tty) { in cts_change()
2052 if (info->port.tty->hw_stopped) { in cts_change()
2053 if (info->signals & SerialSignal_CTS) { in cts_change()
2054 info->port.tty->hw_stopped = 0; in cts_change()
2055 info->pending_bh |= BH_TRANSMIT; in cts_change()
2059 if (!(info->signals & SerialSignal_CTS)) in cts_change()
2060 info->port.tty->hw_stopped = 1; in cts_change()
2066 static void dcd_change(struct slgt_info *info, unsigned short status) in dcd_change() argument
2069 info->signals |= SerialSignal_DCD; in dcd_change()
2070 info->input_signal_events.dcd_up++; in dcd_change()
2072 info->signals &= ~SerialSignal_DCD; in dcd_change()
2073 info->input_signal_events.dcd_down++; in dcd_change()
2075 DBGISR(("dcd_change %s signals=%04X\n", info->device_name, info->signals)); in dcd_change()
2076 if ((info->dcd_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in dcd_change()
2077 slgt_irq_off(info, IRQ_DCD); in dcd_change()
2080 info->icount.dcd++; in dcd_change()
2082 if (info->netcount) { in dcd_change()
2083 if (info->signals & SerialSignal_DCD) in dcd_change()
2084 netif_carrier_on(info->netdev); in dcd_change()
2086 netif_carrier_off(info->netdev); in dcd_change()
2089 wake_up_interruptible(&info->status_event_wait_q); in dcd_change()
2090 wake_up_interruptible(&info->event_wait_q); in dcd_change()
2091 info->pending_bh |= BH_STATUS; in dcd_change()
2093 if (info->port.flags & ASYNC_CHECK_CD) { in dcd_change()
2094 if (info->signals & SerialSignal_DCD) in dcd_change()
2095 wake_up_interruptible(&info->port.open_wait); in dcd_change()
2097 if (info->port.tty) in dcd_change()
2098 tty_hangup(info->port.tty); in dcd_change()
2103 static void ri_change(struct slgt_info *info, unsigned short status) in ri_change() argument
2106 info->signals |= SerialSignal_RI; in ri_change()
2107 info->input_signal_events.ri_up++; in ri_change()
2109 info->signals &= ~SerialSignal_RI; in ri_change()
2110 info->input_signal_events.ri_down++; in ri_change()
2112 DBGISR(("ri_change %s signals=%04X\n", info->device_name, info->signals)); in ri_change()
2113 if ((info->ri_chkcount)++ == IO_PIN_SHUTDOWN_LIMIT) { in ri_change()
2114 slgt_irq_off(info, IRQ_RI); in ri_change()
2117 info->icount.rng++; in ri_change()
2118 wake_up_interruptible(&info->status_event_wait_q); in ri_change()
2119 wake_up_interruptible(&info->event_wait_q); in ri_change()
2120 info->pending_bh |= BH_STATUS; in ri_change()
2123 static void isr_rxdata(struct slgt_info *info) in isr_rxdata() argument
2125 unsigned int count = info->rbuf_fill_count; in isr_rxdata()
2126 unsigned int i = info->rbuf_fill_index; in isr_rxdata()
2129 while (rd_reg16(info, SSR) & IRQ_RXDATA) { in isr_rxdata()
2130 reg = rd_reg16(info, RDR); in isr_rxdata()
2131 DBGISR(("isr_rxdata %s RDR=%04X\n", info->device_name, reg)); in isr_rxdata()
2132 if (desc_complete(info->rbufs[i])) { in isr_rxdata()
2134 rx_stop(info); in isr_rxdata()
2135 info->rx_restart = 1; in isr_rxdata()
2138 info->rbufs[i].buf[count++] = (unsigned char)reg; in isr_rxdata()
2140 if (info->params.mode == MGSL_MODE_ASYNC) in isr_rxdata()
2141 info->rbufs[i].buf[count++] = (unsigned char)(reg >> 8); in isr_rxdata()
2142 if (count == info->rbuf_fill_level || (reg & BIT10)) { in isr_rxdata()
2144 set_desc_count(info->rbufs[i], count); in isr_rxdata()
2145 set_desc_status(info->rbufs[i], BIT15 | (reg >> 8)); in isr_rxdata()
2146 info->rbuf_fill_count = count = 0; in isr_rxdata()
2147 if (++i == info->rbuf_count) in isr_rxdata()
2149 info->pending_bh |= BH_RECEIVE; in isr_rxdata()
2153 info->rbuf_fill_index = i; in isr_rxdata()
2154 info->rbuf_fill_count = count; in isr_rxdata()
2157 static void isr_serial(struct slgt_info *info) in isr_serial() argument
2159 unsigned short status = rd_reg16(info, SSR); in isr_serial()
2161 DBGISR(("%s isr_serial status=%04X\n", info->device_name, status)); in isr_serial()
2163 wr_reg16(info, SSR, status); /* clear pending */ in isr_serial()
2165 info->irq_occurred = true; in isr_serial()
2167 if (info->params.mode == MGSL_MODE_ASYNC) { in isr_serial()
2169 if (info->tx_active) in isr_serial()
2170 isr_txeom(info, status); in isr_serial()
2172 if (info->rx_pio && (status & IRQ_RXDATA)) in isr_serial()
2173 isr_rxdata(info); in isr_serial()
2175 info->icount.brk++; in isr_serial()
2177 if (info->port.tty) { in isr_serial()
2178 if (!(status & info->ignore_status_mask)) { in isr_serial()
2179 if (info->read_status_mask & MASK_BREAK) { in isr_serial()
2180 tty_insert_flip_char(&info->port, 0, TTY_BREAK); in isr_serial()
2181 if (info->port.flags & ASYNC_SAK) in isr_serial()
2182 do_SAK(info->port.tty); in isr_serial()
2189 isr_txeom(info, status); in isr_serial()
2190 if (info->rx_pio && (status & IRQ_RXDATA)) in isr_serial()
2191 isr_rxdata(info); in isr_serial()
2194 info->icount.rxidle++; in isr_serial()
2196 info->icount.exithunt++; in isr_serial()
2197 wake_up_interruptible(&info->event_wait_q); in isr_serial()
2201 rx_start(info); in isr_serial()
2205 dsr_change(info, status); in isr_serial()
2207 cts_change(info, status); in isr_serial()
2209 dcd_change(info, status); in isr_serial()
2211 ri_change(info, status); in isr_serial()
2214 static void isr_rdma(struct slgt_info *info) in isr_rdma() argument
2216 unsigned int status = rd_reg32(info, RDCSR); in isr_rdma()
2218 DBGISR(("%s isr_rdma status=%08x\n", info->device_name, status)); in isr_rdma()
2231 wr_reg32(info, RDCSR, status); /* clear pending */ in isr_rdma()
2234 DBGISR(("%s isr_rdma rx_restart=1\n", info->device_name)); in isr_rdma()
2235 info->rx_restart = true; in isr_rdma()
2237 info->pending_bh |= BH_RECEIVE; in isr_rdma()
2240 static void isr_tdma(struct slgt_info *info) in isr_tdma() argument
2242 unsigned int status = rd_reg32(info, TDCSR); in isr_tdma()
2244 DBGISR(("%s isr_tdma status=%08x\n", info->device_name, status)); in isr_tdma()
2256 wr_reg32(info, TDCSR, status); /* clear pending */ in isr_tdma()
2261 info->pending_bh |= BH_TRANSMIT; in isr_tdma()
2271 static bool unsent_tbufs(struct slgt_info *info) in unsent_tbufs() argument
2273 unsigned int i = info->tbuf_current; in unsent_tbufs()
2285 i = info->tbuf_count - 1; in unsent_tbufs()
2286 if (!desc_count(info->tbufs[i])) in unsent_tbufs()
2288 info->tbuf_start = i; in unsent_tbufs()
2290 } while (i != info->tbuf_current); in unsent_tbufs()
2295 static void isr_txeom(struct slgt_info *info, unsigned short status) in isr_txeom() argument
2297 DBGISR(("%s txeom status=%04x\n", info->device_name, status)); in isr_txeom()
2299 slgt_irq_off(info, IRQ_TXDATA + IRQ_TXIDLE + IRQ_TXUNDER); in isr_txeom()
2300 tdma_reset(info); in isr_txeom()
2302 unsigned short val = rd_reg16(info, TCR); in isr_txeom()
2303 wr_reg16(info, TCR, (unsigned short)(val | BIT2)); /* set reset bit */ in isr_txeom()
2304 wr_reg16(info, TCR, val); /* clear reset bit */ in isr_txeom()
2307 if (info->tx_active) { in isr_txeom()
2308 if (info->params.mode != MGSL_MODE_ASYNC) { in isr_txeom()
2310 info->icount.txunder++; in isr_txeom()
2312 info->icount.txok++; in isr_txeom()
2315 if (unsent_tbufs(info)) { in isr_txeom()
2316 tx_start(info); in isr_txeom()
2317 update_tx_timer(info); in isr_txeom()
2320 info->tx_active = false; in isr_txeom()
2322 del_timer(&info->tx_timer); in isr_txeom()
2324 if (info->params.mode != MGSL_MODE_ASYNC && info->drop_rts_on_tx_done) { in isr_txeom()
2325 info->signals &= ~SerialSignal_RTS; in isr_txeom()
2326 info->drop_rts_on_tx_done = false; in isr_txeom()
2327 set_signals(info); in isr_txeom()
2331 if (info->netcount) in isr_txeom()
2332 hdlcdev_tx_done(info); in isr_txeom()
2336 if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) { in isr_txeom()
2337 tx_stop(info); in isr_txeom()
2340 info->pending_bh |= BH_TRANSMIT; in isr_txeom()
2345 static void isr_gpio(struct slgt_info *info, unsigned int changed, unsigned int state) in isr_gpio() argument
2350 for (w = info->gpio_wait_q, prev = NULL ; w != NULL ; w = w->next) { in isr_gpio()
2357 info->gpio_wait_q = w->next; in isr_gpio()
2370 struct slgt_info *info = dev_id; in slgt_interrupt() local
2374 DBGISR(("slgt_interrupt irq=%d entry\n", info->irq_level)); in slgt_interrupt()
2376 while((gsr = rd_reg32(info, GSR) & 0xffffff00)) { in slgt_interrupt()
2377 DBGISR(("%s gsr=%08x\n", info->device_name, gsr)); in slgt_interrupt()
2378 info->irq_occurred = true; in slgt_interrupt()
2379 for(i=0; i < info->port_count ; i++) { in slgt_interrupt()
2380 if (info->port_array[i] == NULL) in slgt_interrupt()
2382 spin_lock(&info->port_array[i]->lock); in slgt_interrupt()
2384 isr_serial(info->port_array[i]); in slgt_interrupt()
2386 isr_rdma(info->port_array[i]); in slgt_interrupt()
2388 isr_tdma(info->port_array[i]); in slgt_interrupt()
2389 spin_unlock(&info->port_array[i]->lock); in slgt_interrupt()
2393 if (info->gpio_present) { in slgt_interrupt()
2396 spin_lock(&info->lock); in slgt_interrupt()
2397 while ((changed = rd_reg32(info, IOSR)) != 0) { in slgt_interrupt()
2398 DBGISR(("%s iosr=%08x\n", info->device_name, changed)); in slgt_interrupt()
2400 state = rd_reg32(info, IOVR); in slgt_interrupt()
2402 wr_reg32(info, IOSR, changed); in slgt_interrupt()
2403 for (i=0 ; i < info->port_count ; i++) { in slgt_interrupt()
2404 if (info->port_array[i] != NULL) in slgt_interrupt()
2405 isr_gpio(info->port_array[i], changed, state); in slgt_interrupt()
2408 spin_unlock(&info->lock); in slgt_interrupt()
2411 for(i=0; i < info->port_count ; i++) { in slgt_interrupt()
2412 struct slgt_info *port = info->port_array[i]; in slgt_interrupt()
2426 DBGISR(("slgt_interrupt irq=%d exit\n", info->irq_level)); in slgt_interrupt()
2430 static int startup(struct slgt_info *info) in startup() argument
2432 DBGINFO(("%s startup\n", info->device_name)); in startup()
2434 if (info->port.flags & ASYNC_INITIALIZED) in startup()
2437 if (!info->tx_buf) { in startup()
2438 info->tx_buf = kmalloc(info->max_frame_size, GFP_KERNEL); in startup()
2439 if (!info->tx_buf) { in startup()
2440 DBGERR(("%s can't allocate tx buffer\n", info->device_name)); in startup()
2445 info->pending_bh = 0; in startup()
2447 memset(&info->icount, 0, sizeof(info->icount)); in startup()
2450 change_params(info); in startup()
2452 if (info->port.tty) in startup()
2453 clear_bit(TTY_IO_ERROR, &info->port.tty->flags); in startup()
2455 info->port.flags |= ASYNC_INITIALIZED; in startup()
2463 static void shutdown(struct slgt_info *info) in shutdown() argument
2467 if (!(info->port.flags & ASYNC_INITIALIZED)) in shutdown()
2470 DBGINFO(("%s shutdown\n", info->device_name)); in shutdown()
2474 wake_up_interruptible(&info->status_event_wait_q); in shutdown()
2475 wake_up_interruptible(&info->event_wait_q); in shutdown()
2477 del_timer_sync(&info->tx_timer); in shutdown()
2478 del_timer_sync(&info->rx_timer); in shutdown()
2480 kfree(info->tx_buf); in shutdown()
2481 info->tx_buf = NULL; in shutdown()
2483 spin_lock_irqsave(&info->lock,flags); in shutdown()
2485 tx_stop(info); in shutdown()
2486 rx_stop(info); in shutdown()
2488 slgt_irq_off(info, IRQ_ALL | IRQ_MASTER); in shutdown()
2490 if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) { in shutdown()
2491 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in shutdown()
2492 set_signals(info); in shutdown()
2495 flush_cond_wait(&info->gpio_wait_q); in shutdown()
2497 spin_unlock_irqrestore(&info->lock,flags); in shutdown()
2499 if (info->port.tty) in shutdown()
2500 set_bit(TTY_IO_ERROR, &info->port.tty->flags); in shutdown()
2502 info->port.flags &= ~ASYNC_INITIALIZED; in shutdown()
2505 static void program_hw(struct slgt_info *info) in program_hw() argument
2509 spin_lock_irqsave(&info->lock,flags); in program_hw()
2511 rx_stop(info); in program_hw()
2512 tx_stop(info); in program_hw()
2514 if (info->params.mode != MGSL_MODE_ASYNC || in program_hw()
2515 info->netcount) in program_hw()
2516 sync_mode(info); in program_hw()
2518 async_mode(info); in program_hw()
2520 set_signals(info); in program_hw()
2522 info->dcd_chkcount = 0; in program_hw()
2523 info->cts_chkcount = 0; in program_hw()
2524 info->ri_chkcount = 0; in program_hw()
2525 info->dsr_chkcount = 0; in program_hw()
2527 slgt_irq_on(info, IRQ_DCD | IRQ_CTS | IRQ_DSR | IRQ_RI); in program_hw()
2528 get_signals(info); in program_hw()
2530 if (info->netcount || in program_hw()
2531 (info->port.tty && info->port.tty->termios.c_cflag & CREAD)) in program_hw()
2532 rx_start(info); in program_hw()
2534 spin_unlock_irqrestore(&info->lock,flags); in program_hw()
2540 static void change_params(struct slgt_info *info) in change_params() argument
2545 if (!info->port.tty) in change_params()
2547 DBGINFO(("%s change_params\n", info->device_name)); in change_params()
2549 cflag = info->port.tty->termios.c_cflag; in change_params()
2554 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in change_params()
2556 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in change_params()
2561 case CS5: info->params.data_bits = 5; break; in change_params()
2562 case CS6: info->params.data_bits = 6; break; in change_params()
2563 case CS7: info->params.data_bits = 7; break; in change_params()
2564 case CS8: info->params.data_bits = 8; break; in change_params()
2565 default: info->params.data_bits = 7; break; in change_params()
2568 info->params.stop_bits = (cflag & CSTOPB) ? 2 : 1; in change_params()
2571 info->params.parity = (cflag & PARODD) ? ASYNC_PARITY_ODD : ASYNC_PARITY_EVEN; in change_params()
2573 info->params.parity = ASYNC_PARITY_NONE; in change_params()
2578 bits_per_char = info->params.data_bits + in change_params()
2579 info->params.stop_bits + 1; in change_params()
2581 info->params.data_rate = tty_get_baud_rate(info->port.tty); in change_params()
2583 if (info->params.data_rate) { in change_params()
2584 info->timeout = (32*HZ*bits_per_char) / in change_params()
2585 info->params.data_rate; in change_params()
2587 info->timeout += HZ/50; /* Add .02 seconds of slop */ in change_params()
2590 info->port.flags |= ASYNC_CTS_FLOW; in change_params()
2592 info->port.flags &= ~ASYNC_CTS_FLOW; in change_params()
2595 info->port.flags &= ~ASYNC_CHECK_CD; in change_params()
2597 info->port.flags |= ASYNC_CHECK_CD; in change_params()
2601 info->read_status_mask = IRQ_RXOVER; in change_params()
2602 if (I_INPCK(info->port.tty)) in change_params()
2603 info->read_status_mask |= MASK_PARITY | MASK_FRAMING; in change_params()
2604 if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty)) in change_params()
2605 info->read_status_mask |= MASK_BREAK; in change_params()
2606 if (I_IGNPAR(info->port.tty)) in change_params()
2607 info->ignore_status_mask |= MASK_PARITY | MASK_FRAMING; in change_params()
2608 if (I_IGNBRK(info->port.tty)) { in change_params()
2609 info->ignore_status_mask |= MASK_BREAK; in change_params()
2613 if (I_IGNPAR(info->port.tty)) in change_params()
2614 info->ignore_status_mask |= MASK_OVERRUN; in change_params()
2617 program_hw(info); in change_params()
2620 static int get_stats(struct slgt_info *info, struct mgsl_icount __user *user_icount) in get_stats() argument
2622 DBGINFO(("%s get_stats\n", info->device_name)); in get_stats()
2624 memset(&info->icount, 0, sizeof(info->icount)); in get_stats()
2626 if (copy_to_user(user_icount, &info->icount, sizeof(struct mgsl_icount))) in get_stats()
2632 static int get_params(struct slgt_info *info, MGSL_PARAMS __user *user_params) in get_params() argument
2634 DBGINFO(("%s get_params\n", info->device_name)); in get_params()
2635 if (copy_to_user(user_params, &info->params, sizeof(MGSL_PARAMS))) in get_params()
2640 static int set_params(struct slgt_info *info, MGSL_PARAMS __user *new_params) in set_params() argument
2645 DBGINFO(("%s set_params\n", info->device_name)); in set_params()
2649 spin_lock_irqsave(&info->lock, flags); in set_params()
2651 info->base_clock = tmp_params.clock_speed; in set_params()
2653 memcpy(&info->params, &tmp_params, sizeof(MGSL_PARAMS)); in set_params()
2654 spin_unlock_irqrestore(&info->lock, flags); in set_params()
2656 program_hw(info); in set_params()
2661 static int get_txidle(struct slgt_info *info, int __user *idle_mode) in get_txidle() argument
2663 DBGINFO(("%s get_txidle=%d\n", info->device_name, info->idle_mode)); in get_txidle()
2664 if (put_user(info->idle_mode, idle_mode)) in get_txidle()
2669 static int set_txidle(struct slgt_info *info, int idle_mode) in set_txidle() argument
2672 DBGINFO(("%s set_txidle(%d)\n", info->device_name, idle_mode)); in set_txidle()
2673 spin_lock_irqsave(&info->lock,flags); in set_txidle()
2674 info->idle_mode = idle_mode; in set_txidle()
2675 if (info->params.mode != MGSL_MODE_ASYNC) in set_txidle()
2676 tx_set_idle(info); in set_txidle()
2677 spin_unlock_irqrestore(&info->lock,flags); in set_txidle()
2681 static int tx_enable(struct slgt_info *info, int enable) in tx_enable() argument
2684 DBGINFO(("%s tx_enable(%d)\n", info->device_name, enable)); in tx_enable()
2685 spin_lock_irqsave(&info->lock,flags); in tx_enable()
2687 if (!info->tx_enabled) in tx_enable()
2688 tx_start(info); in tx_enable()
2690 if (info->tx_enabled) in tx_enable()
2691 tx_stop(info); in tx_enable()
2693 spin_unlock_irqrestore(&info->lock,flags); in tx_enable()
2700 static int tx_abort(struct slgt_info *info) in tx_abort() argument
2703 DBGINFO(("%s tx_abort\n", info->device_name)); in tx_abort()
2704 spin_lock_irqsave(&info->lock,flags); in tx_abort()
2705 tdma_reset(info); in tx_abort()
2706 spin_unlock_irqrestore(&info->lock,flags); in tx_abort()
2710 static int rx_enable(struct slgt_info *info, int enable) in rx_enable() argument
2714 DBGINFO(("%s rx_enable(%08x)\n", info->device_name, enable)); in rx_enable()
2715 spin_lock_irqsave(&info->lock,flags); in rx_enable()
2724 spin_unlock_irqrestore(&info->lock, flags); in rx_enable()
2727 info->rbuf_fill_level = rbuf_fill_level; in rx_enable()
2729 info->rx_pio = 1; /* PIO mode */ in rx_enable()
2731 info->rx_pio = 0; /* DMA mode */ in rx_enable()
2732 rx_stop(info); /* restart receiver to use new fill level */ in rx_enable()
2743 if (!info->rx_enabled) in rx_enable()
2744 rx_start(info); in rx_enable()
2747 wr_reg16(info, RCR, rd_reg16(info, RCR) | BIT3); in rx_enable()
2750 if (info->rx_enabled) in rx_enable()
2751 rx_stop(info); in rx_enable()
2753 spin_unlock_irqrestore(&info->lock,flags); in rx_enable()
2760 static int wait_mgsl_event(struct slgt_info *info, int __user *mask_ptr) in wait_mgsl_event() argument
2774 DBGINFO(("%s wait_mgsl_event(%d)\n", info->device_name, mask)); in wait_mgsl_event()
2776 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2779 get_signals(info); in wait_mgsl_event()
2780 s = info->signals; in wait_mgsl_event()
2788 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2793 cprev = info->icount; in wait_mgsl_event()
2794 oldsigs = info->input_signal_events; in wait_mgsl_event()
2798 unsigned short val = rd_reg16(info, SCR); in wait_mgsl_event()
2800 wr_reg16(info, SCR, (unsigned short)(val | IRQ_RXIDLE)); in wait_mgsl_event()
2804 add_wait_queue(&info->event_wait_q, &wait); in wait_mgsl_event()
2806 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2816 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2817 cnow = info->icount; in wait_mgsl_event()
2818 newsigs = info->input_signal_events; in wait_mgsl_event()
2820 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2855 remove_wait_queue(&info->event_wait_q, &wait); in wait_mgsl_event()
2860 spin_lock_irqsave(&info->lock,flags); in wait_mgsl_event()
2861 if (!waitqueue_active(&info->event_wait_q)) { in wait_mgsl_event()
2863 wr_reg16(info, SCR, in wait_mgsl_event()
2864 (unsigned short)(rd_reg16(info, SCR) & ~IRQ_RXIDLE)); in wait_mgsl_event()
2866 spin_unlock_irqrestore(&info->lock,flags); in wait_mgsl_event()
2874 static int get_interface(struct slgt_info *info, int __user *if_mode) in get_interface() argument
2876 DBGINFO(("%s get_interface=%x\n", info->device_name, info->if_mode)); in get_interface()
2877 if (put_user(info->if_mode, if_mode)) in get_interface()
2882 static int set_interface(struct slgt_info *info, int if_mode) in set_interface() argument
2887 DBGINFO(("%s set_interface=%x)\n", info->device_name, if_mode)); in set_interface()
2888 spin_lock_irqsave(&info->lock,flags); in set_interface()
2889 info->if_mode = if_mode; in set_interface()
2891 msc_set_vcr(info); in set_interface()
2894 val = rd_reg16(info, TCR); in set_interface()
2895 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in set_interface()
2899 wr_reg16(info, TCR, val); in set_interface()
2901 spin_unlock_irqrestore(&info->lock,flags); in set_interface()
2905 static int get_xsync(struct slgt_info *info, int __user *xsync) in get_xsync() argument
2907 DBGINFO(("%s get_xsync=%x\n", info->device_name, info->xsync)); in get_xsync()
2908 if (put_user(info->xsync, xsync)) in get_xsync()
2919 static int set_xsync(struct slgt_info *info, int xsync) in set_xsync() argument
2923 DBGINFO(("%s set_xsync=%x)\n", info->device_name, xsync)); in set_xsync()
2924 spin_lock_irqsave(&info->lock, flags); in set_xsync()
2925 info->xsync = xsync; in set_xsync()
2926 wr_reg32(info, XSR, xsync); in set_xsync()
2927 spin_unlock_irqrestore(&info->lock, flags); in set_xsync()
2931 static int get_xctrl(struct slgt_info *info, int __user *xctrl) in get_xctrl() argument
2933 DBGINFO(("%s get_xctrl=%x\n", info->device_name, info->xctrl)); in get_xctrl()
2934 if (put_user(info->xctrl, xctrl)) in get_xctrl()
2956 static int set_xctrl(struct slgt_info *info, int xctrl) in set_xctrl() argument
2960 DBGINFO(("%s set_xctrl=%x)\n", info->device_name, xctrl)); in set_xctrl()
2961 spin_lock_irqsave(&info->lock, flags); in set_xctrl()
2962 info->xctrl = xctrl; in set_xctrl()
2963 wr_reg32(info, XCR, xctrl); in set_xctrl()
2964 spin_unlock_irqrestore(&info->lock, flags); in set_xctrl()
2977 static int set_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio) in set_gpio() argument
2983 if (!info->gpio_present) in set_gpio()
2988 info->device_name, gpio.state, gpio.smask, in set_gpio()
2991 spin_lock_irqsave(&info->port_array[0]->lock, flags); in set_gpio()
2993 data = rd_reg32(info, IODR); in set_gpio()
2996 wr_reg32(info, IODR, data); in set_gpio()
2999 data = rd_reg32(info, IOVR); in set_gpio()
3002 wr_reg32(info, IOVR, data); in set_gpio()
3004 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in set_gpio()
3012 static int get_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio) in get_gpio() argument
3015 if (!info->gpio_present) in get_gpio()
3017 gpio.state = rd_reg32(info, IOVR); in get_gpio()
3019 gpio.dir = rd_reg32(info, IODR); in get_gpio()
3024 info->device_name, gpio.state, gpio.dir)); in get_gpio()
3086 static int wait_gpio(struct slgt_info *info, struct gpio_desc __user *user_gpio) in wait_gpio() argument
3094 if (!info->gpio_present) in wait_gpio()
3099 info->device_name, gpio.state, gpio.smask)); in wait_gpio()
3101 if ((gpio.smask &= ~rd_reg32(info, IODR)) == 0) in wait_gpio()
3105 spin_lock_irqsave(&info->port_array[0]->lock, flags); in wait_gpio()
3107 wr_reg32(info, IOER, rd_reg32(info, IOER) | gpio.smask); in wait_gpio()
3109 state = rd_reg32(info, IOVR); in wait_gpio()
3116 add_cond_wait(&info->gpio_wait_q, &wait); in wait_gpio()
3117 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in wait_gpio()
3123 spin_lock_irqsave(&info->port_array[0]->lock, flags); in wait_gpio()
3124 remove_cond_wait(&info->gpio_wait_q, &wait); in wait_gpio()
3128 if (info->gpio_wait_q == NULL) in wait_gpio()
3129 wr_reg32(info, IOER, 0); in wait_gpio()
3130 spin_unlock_irqrestore(&info->port_array[0]->lock, flags); in wait_gpio()
3137 static int modem_input_wait(struct slgt_info *info,int arg) in modem_input_wait() argument
3145 spin_lock_irqsave(&info->lock,flags); in modem_input_wait()
3146 cprev = info->icount; in modem_input_wait()
3147 add_wait_queue(&info->status_event_wait_q, &wait); in modem_input_wait()
3149 spin_unlock_irqrestore(&info->lock,flags); in modem_input_wait()
3159 spin_lock_irqsave(&info->lock,flags); in modem_input_wait()
3160 cnow = info->icount; in modem_input_wait()
3162 spin_unlock_irqrestore(&info->lock,flags); in modem_input_wait()
3182 remove_wait_queue(&info->status_event_wait_q, &wait); in modem_input_wait()
3192 struct slgt_info *info = tty->driver_data; in tiocmget() local
3196 spin_lock_irqsave(&info->lock,flags); in tiocmget()
3197 get_signals(info); in tiocmget()
3198 spin_unlock_irqrestore(&info->lock,flags); in tiocmget()
3200 result = ((info->signals & SerialSignal_RTS) ? TIOCM_RTS:0) + in tiocmget()
3201 ((info->signals & SerialSignal_DTR) ? TIOCM_DTR:0) + in tiocmget()
3202 ((info->signals & SerialSignal_DCD) ? TIOCM_CAR:0) + in tiocmget()
3203 ((info->signals & SerialSignal_RI) ? TIOCM_RNG:0) + in tiocmget()
3204 ((info->signals & SerialSignal_DSR) ? TIOCM_DSR:0) + in tiocmget()
3205 ((info->signals & SerialSignal_CTS) ? TIOCM_CTS:0); in tiocmget()
3207 DBGINFO(("%s tiocmget value=%08X\n", info->device_name, result)); in tiocmget()
3221 struct slgt_info *info = tty->driver_data; in tiocmset() local
3224 DBGINFO(("%s tiocmset(%x,%x)\n", info->device_name, set, clear)); in tiocmset()
3227 info->signals |= SerialSignal_RTS; in tiocmset()
3229 info->signals |= SerialSignal_DTR; in tiocmset()
3231 info->signals &= ~SerialSignal_RTS; in tiocmset()
3233 info->signals &= ~SerialSignal_DTR; in tiocmset()
3235 spin_lock_irqsave(&info->lock,flags); in tiocmset()
3236 set_signals(info); in tiocmset()
3237 spin_unlock_irqrestore(&info->lock,flags); in tiocmset()
3244 struct slgt_info *info = container_of(port, struct slgt_info, port); in carrier_raised() local
3246 spin_lock_irqsave(&info->lock,flags); in carrier_raised()
3247 get_signals(info); in carrier_raised()
3248 spin_unlock_irqrestore(&info->lock,flags); in carrier_raised()
3249 return (info->signals & SerialSignal_DCD) ? 1 : 0; in carrier_raised()
3255 struct slgt_info *info = container_of(port, struct slgt_info, port); in dtr_rts() local
3257 spin_lock_irqsave(&info->lock,flags); in dtr_rts()
3259 info->signals |= SerialSignal_RTS | SerialSignal_DTR; in dtr_rts()
3261 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in dtr_rts()
3262 set_signals(info); in dtr_rts()
3263 spin_unlock_irqrestore(&info->lock,flags); in dtr_rts()
3271 struct slgt_info *info) in block_til_ready() argument
3278 struct tty_port *port = &info->port; in block_til_ready()
3301 spin_lock_irqsave(&info->lock, flags); in block_til_ready()
3303 spin_unlock_irqrestore(&info->lock, flags); in block_til_ready()
3354 static int alloc_tmp_rbuf(struct slgt_info *info) in alloc_tmp_rbuf() argument
3356 info->tmp_rbuf = kmalloc(info->max_frame_size + 5, GFP_KERNEL); in alloc_tmp_rbuf()
3357 if (info->tmp_rbuf == NULL) in alloc_tmp_rbuf()
3360 info->flag_buf = kzalloc(info->max_frame_size + 5, GFP_KERNEL); in alloc_tmp_rbuf()
3361 if (!info->flag_buf) { in alloc_tmp_rbuf()
3362 kfree(info->tmp_rbuf); in alloc_tmp_rbuf()
3363 info->tmp_rbuf = NULL; in alloc_tmp_rbuf()
3369 static void free_tmp_rbuf(struct slgt_info *info) in free_tmp_rbuf() argument
3371 kfree(info->tmp_rbuf); in free_tmp_rbuf()
3372 info->tmp_rbuf = NULL; in free_tmp_rbuf()
3373 kfree(info->flag_buf); in free_tmp_rbuf()
3374 info->flag_buf = NULL; in free_tmp_rbuf()
3380 static int alloc_desc(struct slgt_info *info) in alloc_desc() argument
3386 info->bufs = pci_zalloc_consistent(info->pdev, DESC_LIST_SIZE, in alloc_desc()
3387 &info->bufs_dma_addr); in alloc_desc()
3388 if (info->bufs == NULL) in alloc_desc()
3391 info->rbufs = (struct slgt_desc*)info->bufs; in alloc_desc()
3392 info->tbufs = ((struct slgt_desc*)info->bufs) + info->rbuf_count; in alloc_desc()
3394 pbufs = (unsigned int)info->bufs_dma_addr; in alloc_desc()
3400 for (i=0; i < info->rbuf_count; i++) { in alloc_desc()
3402 info->rbufs[i].pdesc = pbufs + (i * sizeof(struct slgt_desc)); in alloc_desc()
3405 if (i == info->rbuf_count - 1) in alloc_desc()
3406 info->rbufs[i].next = cpu_to_le32(pbufs); in alloc_desc()
3408 info->rbufs[i].next = cpu_to_le32(pbufs + ((i+1) * sizeof(struct slgt_desc))); in alloc_desc()
3409 set_desc_count(info->rbufs[i], DMABUFSIZE); in alloc_desc()
3412 for (i=0; i < info->tbuf_count; i++) { in alloc_desc()
3414 info->tbufs[i].pdesc = pbufs + ((info->rbuf_count + i) * sizeof(struct slgt_desc)); in alloc_desc()
3417 if (i == info->tbuf_count - 1) in alloc_desc()
3418 info->tbufs[i].next = cpu_to_le32(pbufs + info->rbuf_count * sizeof(struct slgt_desc)); in alloc_desc()
3420 …info->tbufs[i].next = cpu_to_le32(pbufs + ((info->rbuf_count + i + 1) * sizeof(struct slgt_desc))); in alloc_desc()
3426 static void free_desc(struct slgt_info *info) in free_desc() argument
3428 if (info->bufs != NULL) { in free_desc()
3429 pci_free_consistent(info->pdev, DESC_LIST_SIZE, info->bufs, info->bufs_dma_addr); in free_desc()
3430 info->bufs = NULL; in free_desc()
3431 info->rbufs = NULL; in free_desc()
3432 info->tbufs = NULL; in free_desc()
3436 static int alloc_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count) in alloc_bufs() argument
3440 if ((bufs[i].buf = pci_alloc_consistent(info->pdev, DMABUFSIZE, &bufs[i].buf_dma_addr)) == NULL) in alloc_bufs()
3447 static void free_bufs(struct slgt_info *info, struct slgt_desc *bufs, int count) in free_bufs() argument
3453 pci_free_consistent(info->pdev, DMABUFSIZE, bufs[i].buf, bufs[i].buf_dma_addr); in free_bufs()
3458 static int alloc_dma_bufs(struct slgt_info *info) in alloc_dma_bufs() argument
3460 info->rbuf_count = 32; in alloc_dma_bufs()
3461 info->tbuf_count = 32; in alloc_dma_bufs()
3463 if (alloc_desc(info) < 0 || in alloc_dma_bufs()
3464 alloc_bufs(info, info->rbufs, info->rbuf_count) < 0 || in alloc_dma_bufs()
3465 alloc_bufs(info, info->tbufs, info->tbuf_count) < 0 || in alloc_dma_bufs()
3466 alloc_tmp_rbuf(info) < 0) { in alloc_dma_bufs()
3467 DBGERR(("%s DMA buffer alloc fail\n", info->device_name)); in alloc_dma_bufs()
3470 reset_rbufs(info); in alloc_dma_bufs()
3474 static void free_dma_bufs(struct slgt_info *info) in free_dma_bufs() argument
3476 if (info->bufs) { in free_dma_bufs()
3477 free_bufs(info, info->rbufs, info->rbuf_count); in free_dma_bufs()
3478 free_bufs(info, info->tbufs, info->tbuf_count); in free_dma_bufs()
3479 free_desc(info); in free_dma_bufs()
3481 free_tmp_rbuf(info); in free_dma_bufs()
3484 static int claim_resources(struct slgt_info *info) in claim_resources() argument
3486 if (request_mem_region(info->phys_reg_addr, SLGT_REG_SIZE, "synclink_gt") == NULL) { in claim_resources()
3488 info->device_name, info->phys_reg_addr)); in claim_resources()
3489 info->init_error = DiagStatus_AddressConflict; in claim_resources()
3493 info->reg_addr_requested = true; in claim_resources()
3495 info->reg_addr = ioremap_nocache(info->phys_reg_addr, SLGT_REG_SIZE); in claim_resources()
3496 if (!info->reg_addr) { in claim_resources()
3498 info->device_name, info->phys_reg_addr)); in claim_resources()
3499 info->init_error = DiagStatus_CantAssignPciResources; in claim_resources()
3505 release_resources(info); in claim_resources()
3509 static void release_resources(struct slgt_info *info) in release_resources() argument
3511 if (info->irq_requested) { in release_resources()
3512 free_irq(info->irq_level, info); in release_resources()
3513 info->irq_requested = false; in release_resources()
3516 if (info->reg_addr_requested) { in release_resources()
3517 release_mem_region(info->phys_reg_addr, SLGT_REG_SIZE); in release_resources()
3518 info->reg_addr_requested = false; in release_resources()
3521 if (info->reg_addr) { in release_resources()
3522 iounmap(info->reg_addr); in release_resources()
3523 info->reg_addr = NULL; in release_resources()
3530 static void add_device(struct slgt_info *info) in add_device() argument
3534 info->next_device = NULL; in add_device()
3535 info->line = slgt_device_count; in add_device()
3536 sprintf(info->device_name, "%s%d", tty_dev_prefix, info->line); in add_device()
3538 if (info->line < MAX_DEVICES) { in add_device()
3539 if (maxframe[info->line]) in add_device()
3540 info->max_frame_size = maxframe[info->line]; in add_device()
3546 slgt_device_list = info; in add_device()
3551 current_dev->next_device = info; in add_device()
3554 if (info->max_frame_size < 4096) in add_device()
3555 info->max_frame_size = 4096; in add_device()
3556 else if (info->max_frame_size > 65535) in add_device()
3557 info->max_frame_size = 65535; in add_device()
3559 switch(info->pdev->device) { in add_device()
3571 info->params.mode = MGSL_MODE_ASYNC; in add_device()
3577 devstr, info->device_name, info->phys_reg_addr, in add_device()
3578 info->irq_level, info->max_frame_size); in add_device()
3581 hdlcdev_init(info); in add_device()
3595 struct slgt_info *info; in alloc_dev() local
3597 info = kzalloc(sizeof(struct slgt_info), GFP_KERNEL); in alloc_dev()
3599 if (!info) { in alloc_dev()
3603 tty_port_init(&info->port); in alloc_dev()
3604 info->port.ops = &slgt_port_ops; in alloc_dev()
3605 info->magic = MGSL_MAGIC; in alloc_dev()
3606 INIT_WORK(&info->task, bh_handler); in alloc_dev()
3607 info->max_frame_size = 4096; in alloc_dev()
3608 info->base_clock = 14745600; in alloc_dev()
3609 info->rbuf_fill_level = DMABUFSIZE; in alloc_dev()
3610 info->port.close_delay = 5*HZ/10; in alloc_dev()
3611 info->port.closing_wait = 30*HZ; in alloc_dev()
3612 init_waitqueue_head(&info->status_event_wait_q); in alloc_dev()
3613 init_waitqueue_head(&info->event_wait_q); in alloc_dev()
3614 spin_lock_init(&info->netlock); in alloc_dev()
3615 memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS)); in alloc_dev()
3616 info->idle_mode = HDLC_TXIDLE_FLAGS; in alloc_dev()
3617 info->adapter_num = adapter_num; in alloc_dev()
3618 info->port_num = port_num; in alloc_dev()
3620 setup_timer(&info->tx_timer, tx_timeout, (unsigned long)info); in alloc_dev()
3621 setup_timer(&info->rx_timer, rx_timeout, (unsigned long)info); in alloc_dev()
3624 info->pdev = pdev; in alloc_dev()
3625 info->irq_level = pdev->irq; in alloc_dev()
3626 info->phys_reg_addr = pci_resource_start(pdev,0); in alloc_dev()
3628 info->bus_type = MGSL_BUS_TYPE_PCI; in alloc_dev()
3629 info->irq_flags = IRQF_SHARED; in alloc_dev()
3631 info->init_error = -1; /* assume error, set to 0 on successful init */ in alloc_dev()
3634 return info; in alloc_dev()
3699 struct slgt_info *info = port_array[i]; in device_init() local
3700 tty_port_register_device(&info->port, serial_driver, info->line, in device_init()
3701 &info->pdev->dev); in device_init()
3750 struct slgt_info *info; in slgt_cleanup() local
3756 for (info=slgt_device_list ; info != NULL ; info=info->next_device) in slgt_cleanup()
3757 tty_unregister_device(serial_driver, info->line); in slgt_cleanup()
3764 info = slgt_device_list; in slgt_cleanup()
3765 while(info) { in slgt_cleanup()
3766 reset_port(info); in slgt_cleanup()
3767 info = info->next_device; in slgt_cleanup()
3771 info = slgt_device_list; in slgt_cleanup()
3772 while(info) { in slgt_cleanup()
3774 hdlcdev_exit(info); in slgt_cleanup()
3776 free_dma_bufs(info); in slgt_cleanup()
3777 free_tmp_rbuf(info); in slgt_cleanup()
3778 if (info->port_num == 0) in slgt_cleanup()
3779 release_resources(info); in slgt_cleanup()
3780 tmp = info; in slgt_cleanup()
3781 info = info->next_device; in slgt_cleanup()
3860 unsigned long reg_addr = ((unsigned long)info->reg_addr) + addr; \
3862 reg_addr += (info->port_num) * 32; \
3864 reg_addr += (info->port_num) * 16;
3866 static __u8 rd_reg8(struct slgt_info *info, unsigned int addr) in rd_reg8() argument
3872 static void wr_reg8(struct slgt_info *info, unsigned int addr, __u8 value) in wr_reg8() argument
3878 static __u16 rd_reg16(struct slgt_info *info, unsigned int addr) in rd_reg16() argument
3884 static void wr_reg16(struct slgt_info *info, unsigned int addr, __u16 value) in wr_reg16() argument
3890 static __u32 rd_reg32(struct slgt_info *info, unsigned int addr) in rd_reg32() argument
3896 static void wr_reg32(struct slgt_info *info, unsigned int addr, __u32 value) in wr_reg32() argument
3902 static void rdma_reset(struct slgt_info *info) in rdma_reset() argument
3907 wr_reg32(info, RDCSR, BIT1); in rdma_reset()
3911 if (!(rd_reg32(info, RDCSR) & BIT0)) in rdma_reset()
3915 static void tdma_reset(struct slgt_info *info) in tdma_reset() argument
3920 wr_reg32(info, TDCSR, BIT1); in tdma_reset()
3924 if (!(rd_reg32(info, TDCSR) & BIT0)) in tdma_reset()
3933 static void enable_loopback(struct slgt_info *info) in enable_loopback() argument
3936 wr_reg16(info, SCR, (unsigned short)(rd_reg16(info, SCR) | BIT2)); in enable_loopback()
3938 if (info->params.mode != MGSL_MODE_ASYNC) { in enable_loopback()
3947 wr_reg8(info, CCR, 0x49); in enable_loopback()
3950 if (info->params.clock_speed) in enable_loopback()
3951 set_rate(info, info->params.clock_speed); in enable_loopback()
3953 set_rate(info, 3686400); in enable_loopback()
3960 static void set_rate(struct slgt_info *info, u32 rate) in set_rate() argument
3963 unsigned int osc = info->base_clock; in set_rate()
3975 wr_reg16(info, BDR, (unsigned short)div); in set_rate()
3979 static void rx_stop(struct slgt_info *info) in rx_stop() argument
3984 val = rd_reg16(info, RCR) & ~BIT1; /* clear enable bit */ in rx_stop()
3985 wr_reg16(info, RCR, (unsigned short)(val | BIT2)); /* set reset bit */ in rx_stop()
3986 wr_reg16(info, RCR, val); /* clear reset bit */ in rx_stop()
3988 slgt_irq_off(info, IRQ_RXOVER + IRQ_RXDATA + IRQ_RXIDLE); in rx_stop()
3991 wr_reg16(info, SSR, IRQ_RXIDLE + IRQ_RXOVER); in rx_stop()
3993 rdma_reset(info); in rx_stop()
3995 info->rx_enabled = false; in rx_stop()
3996 info->rx_restart = false; in rx_stop()
3999 static void rx_start(struct slgt_info *info) in rx_start() argument
4003 slgt_irq_off(info, IRQ_RXOVER + IRQ_RXDATA); in rx_start()
4006 wr_reg16(info, SSR, IRQ_RXOVER); in rx_start()
4009 val = rd_reg16(info, RCR) & ~BIT1; /* clear enable bit */ in rx_start()
4010 wr_reg16(info, RCR, (unsigned short)(val | BIT2)); /* set reset bit */ in rx_start()
4011 wr_reg16(info, RCR, val); /* clear reset bit */ in rx_start()
4013 rdma_reset(info); in rx_start()
4014 reset_rbufs(info); in rx_start()
4016 if (info->rx_pio) { in rx_start()
4018 wr_reg16(info, SCR, (unsigned short)(rd_reg16(info, SCR) & ~BIT14)); in rx_start()
4019 slgt_irq_on(info, IRQ_RXDATA); in rx_start()
4020 if (info->params.mode == MGSL_MODE_ASYNC) { in rx_start()
4022 wr_reg32(info, RDCSR, BIT6); in rx_start()
4026 wr_reg16(info, SCR, (unsigned short)(rd_reg16(info, SCR) | BIT14)); in rx_start()
4028 wr_reg32(info, RDDAR, info->rbufs[0].pdesc); in rx_start()
4030 if (info->params.mode != MGSL_MODE_ASYNC) { in rx_start()
4032 wr_reg32(info, RDCSR, (BIT2 + BIT0)); in rx_start()
4035 wr_reg32(info, RDCSR, (BIT6 + BIT2 + BIT0)); in rx_start()
4039 slgt_irq_on(info, IRQ_RXOVER); in rx_start()
4042 wr_reg16(info, RCR, (unsigned short)(rd_reg16(info, RCR) | BIT1)); in rx_start()
4044 info->rx_restart = false; in rx_start()
4045 info->rx_enabled = true; in rx_start()
4048 static void tx_start(struct slgt_info *info) in tx_start() argument
4050 if (!info->tx_enabled) { in tx_start()
4051 wr_reg16(info, TCR, in tx_start()
4052 (unsigned short)((rd_reg16(info, TCR) | BIT1) & ~BIT2)); in tx_start()
4053 info->tx_enabled = true; in tx_start()
4056 if (desc_count(info->tbufs[info->tbuf_start])) { in tx_start()
4057 info->drop_rts_on_tx_done = false; in tx_start()
4059 if (info->params.mode != MGSL_MODE_ASYNC) { in tx_start()
4060 if (info->params.flags & HDLC_FLAG_AUTO_RTS) { in tx_start()
4061 get_signals(info); in tx_start()
4062 if (!(info->signals & SerialSignal_RTS)) { in tx_start()
4063 info->signals |= SerialSignal_RTS; in tx_start()
4064 set_signals(info); in tx_start()
4065 info->drop_rts_on_tx_done = true; in tx_start()
4069 slgt_irq_off(info, IRQ_TXDATA); in tx_start()
4070 slgt_irq_on(info, IRQ_TXUNDER + IRQ_TXIDLE); in tx_start()
4072 wr_reg16(info, SSR, (unsigned short)(IRQ_TXIDLE + IRQ_TXUNDER)); in tx_start()
4074 slgt_irq_off(info, IRQ_TXDATA); in tx_start()
4075 slgt_irq_on(info, IRQ_TXIDLE); in tx_start()
4077 wr_reg16(info, SSR, IRQ_TXIDLE); in tx_start()
4080 wr_reg32(info, TDDAR, info->tbufs[info->tbuf_start].pdesc); in tx_start()
4081 wr_reg32(info, TDCSR, BIT2 + BIT0); in tx_start()
4082 info->tx_active = true; in tx_start()
4086 static void tx_stop(struct slgt_info *info) in tx_stop() argument
4090 del_timer(&info->tx_timer); in tx_stop()
4092 tdma_reset(info); in tx_stop()
4095 val = rd_reg16(info, TCR) & ~BIT1; /* clear enable bit */ in tx_stop()
4096 wr_reg16(info, TCR, (unsigned short)(val | BIT2)); /* set reset bit */ in tx_stop()
4098 slgt_irq_off(info, IRQ_TXDATA + IRQ_TXIDLE + IRQ_TXUNDER); in tx_stop()
4101 wr_reg16(info, SSR, (unsigned short)(IRQ_TXIDLE + IRQ_TXUNDER)); in tx_stop()
4103 reset_tbufs(info); in tx_stop()
4105 info->tx_enabled = false; in tx_stop()
4106 info->tx_active = false; in tx_stop()
4109 static void reset_port(struct slgt_info *info) in reset_port() argument
4111 if (!info->reg_addr) in reset_port()
4114 tx_stop(info); in reset_port()
4115 rx_stop(info); in reset_port()
4117 info->signals &= ~(SerialSignal_RTS | SerialSignal_DTR); in reset_port()
4118 set_signals(info); in reset_port()
4120 slgt_irq_off(info, IRQ_ALL | IRQ_MASTER); in reset_port()
4123 static void reset_adapter(struct slgt_info *info) in reset_adapter() argument
4126 for (i=0; i < info->port_count; ++i) { in reset_adapter()
4127 if (info->port_array[i]) in reset_adapter()
4128 reset_port(info->port_array[i]); in reset_adapter()
4132 static void async_mode(struct slgt_info *info) in async_mode() argument
4136 slgt_irq_off(info, IRQ_ALL | IRQ_MASTER); in async_mode()
4137 tx_stop(info); in async_mode()
4138 rx_stop(info); in async_mode()
4160 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in async_mode()
4163 if (info->params.parity != ASYNC_PARITY_NONE) { in async_mode()
4165 if (info->params.parity == ASYNC_PARITY_ODD) in async_mode()
4169 switch (info->params.data_bits) in async_mode()
4176 if (info->params.stop_bits != 1) in async_mode()
4179 if (info->params.flags & HDLC_FLAG_AUTO_CTS) in async_mode()
4182 wr_reg16(info, TCR, val); in async_mode()
4203 if (info->params.parity != ASYNC_PARITY_NONE) { in async_mode()
4205 if (info->params.parity == ASYNC_PARITY_ODD) in async_mode()
4209 switch (info->params.data_bits) in async_mode()
4216 if (info->params.flags & HDLC_FLAG_AUTO_DCD) in async_mode()
4219 wr_reg16(info, RCR, val); in async_mode()
4230 wr_reg8(info, CCR, 0x69); in async_mode()
4232 msc_set_vcr(info); in async_mode()
4255 if ((rd_reg32(info, JCR) & BIT8) && info->params.data_rate && in async_mode()
4256 ((info->base_clock < (info->params.data_rate * 16)) || in async_mode()
4257 (info->base_clock % (info->params.data_rate * 16)))) { in async_mode()
4260 set_rate(info, info->params.data_rate * 8); in async_mode()
4263 set_rate(info, info->params.data_rate * 16); in async_mode()
4265 wr_reg16(info, SCR, val); in async_mode()
4267 slgt_irq_on(info, IRQ_RXBREAK | IRQ_RXOVER); in async_mode()
4269 if (info->params.loopback) in async_mode()
4270 enable_loopback(info); in async_mode()
4273 static void sync_mode(struct slgt_info *info) in sync_mode() argument
4277 slgt_irq_off(info, IRQ_ALL | IRQ_MASTER); in sync_mode()
4278 tx_stop(info); in sync_mode()
4279 rx_stop(info); in sync_mode()
4303 switch(info->params.mode) { in sync_mode()
4311 if (info->if_mode & MGSL_INTERFACE_RTS_EN) in sync_mode()
4314 switch(info->params.encoding) in sync_mode()
4325 switch (info->params.crc_type & HDLC_CRC_MASK) in sync_mode()
4331 if (info->params.preamble != HDLC_PREAMBLE_PATTERN_NONE) in sync_mode()
4334 switch (info->params.preamble_length) in sync_mode()
4341 if (info->params.flags & HDLC_FLAG_AUTO_CTS) in sync_mode()
4344 wr_reg16(info, TCR, val); in sync_mode()
4348 switch (info->params.preamble) in sync_mode()
4357 wr_reg8(info, TPR, (unsigned char)val); in sync_mode()
4378 switch(info->params.mode) { in sync_mode()
4387 switch(info->params.encoding) in sync_mode()
4398 switch (info->params.crc_type & HDLC_CRC_MASK) in sync_mode()
4404 if (info->params.flags & HDLC_FLAG_AUTO_DCD) in sync_mode()
4407 wr_reg16(info, RCR, val); in sync_mode()
4418 if (info->params.flags & HDLC_FLAG_TXC_BRG) in sync_mode()
4423 if (info->params.flags & HDLC_FLAG_RXC_DPLL) in sync_mode()
4428 else if (info->params.flags & HDLC_FLAG_TXC_DPLL) in sync_mode()
4430 else if (info->params.flags & HDLC_FLAG_TXC_RXCPIN) in sync_mode()
4433 if (info->params.flags & HDLC_FLAG_RXC_BRG) in sync_mode()
4435 else if (info->params.flags & HDLC_FLAG_RXC_DPLL) in sync_mode()
4437 else if (info->params.flags & HDLC_FLAG_RXC_TXCPIN) in sync_mode()
4440 if (info->params.clock_speed) in sync_mode()
4443 wr_reg8(info, CCR, (unsigned char)val); in sync_mode()
4445 if (info->params.flags & (HDLC_FLAG_TXC_DPLL + HDLC_FLAG_RXC_DPLL)) in sync_mode()
4448 switch(info->params.encoding) in sync_mode()
4458 wr_reg16(info, RCR, (unsigned short)(rd_reg16(info, RCR) | val)); in sync_mode()
4461 set_rate(info, info->params.clock_speed * 16); in sync_mode()
4464 set_rate(info, info->params.clock_speed); in sync_mode()
4466 tx_set_idle(info); in sync_mode()
4468 msc_set_vcr(info); in sync_mode()
4489 wr_reg16(info, SCR, BIT15 + BIT14 + BIT0); in sync_mode()
4491 if (info->params.loopback) in sync_mode()
4492 enable_loopback(info); in sync_mode()
4498 static void tx_set_idle(struct slgt_info *info) in tx_set_idle() argument
4506 tcr = rd_reg16(info, TCR); in tx_set_idle()
4507 if (info->idle_mode & HDLC_TXIDLE_CUSTOM_16) { in tx_set_idle()
4511 wr_reg8(info, TPR, (unsigned char)((info->idle_mode >> 8) & 0xff)); in tx_set_idle()
4516 wr_reg16(info, TCR, tcr); in tx_set_idle()
4518 if (info->idle_mode & (HDLC_TXIDLE_CUSTOM_8 | HDLC_TXIDLE_CUSTOM_16)) { in tx_set_idle()
4520 val = (unsigned char)(info->idle_mode & 0xff); in tx_set_idle()
4523 switch(info->idle_mode) in tx_set_idle()
4534 wr_reg8(info, TIR, val); in tx_set_idle()
4540 static void get_signals(struct slgt_info *info) in get_signals() argument
4542 unsigned short status = rd_reg16(info, SSR); in get_signals()
4545 info->signals &= SerialSignal_RTS | SerialSignal_DTR; in get_signals()
4548 info->signals |= SerialSignal_DSR; in get_signals()
4550 info->signals |= SerialSignal_CTS; in get_signals()
4552 info->signals |= SerialSignal_DCD; in get_signals()
4554 info->signals |= SerialSignal_RI; in get_signals()
4560 static void msc_set_vcr(struct slgt_info *info) in msc_set_vcr() argument
4573 switch(info->if_mode & MGSL_INTERFACE_MASK) in msc_set_vcr()
4586 if (info->if_mode & MGSL_INTERFACE_MSB_FIRST) in msc_set_vcr()
4588 if (info->signals & SerialSignal_DTR) in msc_set_vcr()
4590 if (info->signals & SerialSignal_RTS) in msc_set_vcr()
4592 if (info->if_mode & MGSL_INTERFACE_LL) in msc_set_vcr()
4594 if (info->if_mode & MGSL_INTERFACE_RL) in msc_set_vcr()
4596 wr_reg8(info, VCR, val); in msc_set_vcr()
4602 static void set_signals(struct slgt_info *info) in set_signals() argument
4604 unsigned char val = rd_reg8(info, VCR); in set_signals()
4605 if (info->signals & SerialSignal_DTR) in set_signals()
4609 if (info->signals & SerialSignal_RTS) in set_signals()
4613 wr_reg8(info, VCR, val); in set_signals()
4619 static void free_rbufs(struct slgt_info *info, unsigned int i, unsigned int last) in free_rbufs() argument
4625 info->rbufs[i].status = 0; in free_rbufs()
4626 set_desc_count(info->rbufs[i], info->rbuf_fill_level); in free_rbufs()
4629 if (++i == info->rbuf_count) in free_rbufs()
4632 info->rbuf_current = i; in free_rbufs()
4638 static void reset_rbufs(struct slgt_info *info) in reset_rbufs() argument
4640 free_rbufs(info, 0, info->rbuf_count - 1); in reset_rbufs()
4641 info->rbuf_fill_index = 0; in reset_rbufs()
4642 info->rbuf_fill_count = 0; in reset_rbufs()
4650 static bool rx_get_frame(struct slgt_info *info) in rx_get_frame() argument
4656 struct tty_struct *tty = info->port.tty; in rx_get_frame()
4660 switch (info->params.crc_type & HDLC_CRC_MASK) { in rx_get_frame()
4669 start = end = info->rbuf_current; in rx_get_frame()
4672 if (!desc_complete(info->rbufs[end])) in rx_get_frame()
4675 if (framesize == 0 && info->params.addr_filter != 0xff) in rx_get_frame()
4676 addr_field = info->rbufs[end].buf[0]; in rx_get_frame()
4678 framesize += desc_count(info->rbufs[end]); in rx_get_frame()
4680 if (desc_eof(info->rbufs[end])) in rx_get_frame()
4683 if (++end == info->rbuf_count) in rx_get_frame()
4686 if (end == info->rbuf_current) { in rx_get_frame()
4687 if (info->rx_enabled){ in rx_get_frame()
4688 spin_lock_irqsave(&info->lock,flags); in rx_get_frame()
4689 rx_start(info); in rx_get_frame()
4690 spin_unlock_irqrestore(&info->lock,flags); in rx_get_frame()
4705 status = desc_status(info->rbufs[end]); in rx_get_frame()
4708 if ((info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_NONE) in rx_get_frame()
4712 (addr_field != 0xff && addr_field != info->params.addr_filter)) { in rx_get_frame()
4713 free_rbufs(info, start, end); in rx_get_frame()
4718 info->icount.rxshort++; in rx_get_frame()
4721 info->icount.rxcrc++; in rx_get_frame()
4722 if (!(info->params.crc_type & HDLC_CRC_RETURN_EX)) in rx_get_frame()
4728 info->netdev->stats.rx_errors++; in rx_get_frame()
4729 info->netdev->stats.rx_frame_errors++; in rx_get_frame()
4734 info->device_name, status, framesize)); in rx_get_frame()
4735 DBGDATA(info, info->rbufs[start].buf, min_t(int, framesize, info->rbuf_fill_level), "rx"); in rx_get_frame()
4738 if (!(info->params.crc_type & HDLC_CRC_RETURN_EX)) { in rx_get_frame()
4743 if (framesize > info->max_frame_size + crc_size) in rx_get_frame()
4744 info->icount.rxlong++; in rx_get_frame()
4749 unsigned char *p = info->tmp_rbuf; in rx_get_frame()
4750 info->tmp_rbuf_count = framesize; in rx_get_frame()
4752 info->icount.rxok++; in rx_get_frame()
4755 int partial_count = min_t(int, copy_count, info->rbuf_fill_level); in rx_get_frame()
4756 memcpy(p, info->rbufs[i].buf, partial_count); in rx_get_frame()
4759 if (++i == info->rbuf_count) in rx_get_frame()
4763 if (info->params.crc_type & HDLC_CRC_RETURN_EX) { in rx_get_frame()
4769 if (info->netcount) in rx_get_frame()
4770 hdlcdev_rx(info,info->tmp_rbuf, framesize); in rx_get_frame()
4773 ldisc_receive_buf(tty, info->tmp_rbuf, info->flag_buf, framesize); in rx_get_frame()
4776 free_rbufs(info, start, end); in rx_get_frame()
4787 static bool rx_get_buf(struct slgt_info *info) in rx_get_buf() argument
4789 unsigned int i = info->rbuf_current; in rx_get_buf()
4792 if (!desc_complete(info->rbufs[i])) in rx_get_buf()
4794 count = desc_count(info->rbufs[i]); in rx_get_buf()
4795 switch(info->params.mode) { in rx_get_buf()
4800 if (desc_residue(info->rbufs[i])) in rx_get_buf()
4804 DBGDATA(info, info->rbufs[i].buf, count, "rx"); in rx_get_buf()
4807 ldisc_receive_buf(info->port.tty, info->rbufs[i].buf, in rx_get_buf()
4808 info->flag_buf, count); in rx_get_buf()
4809 free_rbufs(info, i, i); in rx_get_buf()
4813 static void reset_tbufs(struct slgt_info *info) in reset_tbufs() argument
4816 info->tbuf_current = 0; in reset_tbufs()
4817 for (i=0 ; i < info->tbuf_count ; i++) { in reset_tbufs()
4818 info->tbufs[i].status = 0; in reset_tbufs()
4819 info->tbufs[i].count = 0; in reset_tbufs()
4826 static unsigned int free_tbuf_count(struct slgt_info *info) in free_tbuf_count() argument
4829 unsigned int i = info->tbuf_current; in free_tbuf_count()
4833 if (desc_count(info->tbufs[i])) in free_tbuf_count()
4836 if (++i == info->tbuf_count) in free_tbuf_count()
4838 } while (i != info->tbuf_current); in free_tbuf_count()
4841 if (count && (rd_reg32(info, TDCSR) & BIT0)) in free_tbuf_count()
4851 static unsigned int tbuf_bytes(struct slgt_info *info) in tbuf_bytes() argument
4854 unsigned int i = info->tbuf_current; in tbuf_bytes()
4871 count = desc_count(info->tbufs[i]); in tbuf_bytes()
4875 active_buf_count = info->tbufs[i].buf_count; in tbuf_bytes()
4876 if (++i == info->tbuf_count) in tbuf_bytes()
4878 } while (i != info->tbuf_current); in tbuf_bytes()
4881 reg_value = rd_reg32(info, TDCSR); in tbuf_bytes()
4891 if (info->tx_active) in tbuf_bytes()
4901 static bool tx_load(struct slgt_info *info, const char *buf, unsigned int size) in tx_load() argument
4908 if (DIV_ROUND_UP(size, DMABUFSIZE) > free_tbuf_count(info)) in tx_load()
4911 DBGDATA(info, buf, size, "tx"); in tx_load()
4924 info->tbuf_start = i = info->tbuf_current; in tx_load()
4927 d = &info->tbufs[i]; in tx_load()
4939 if ((!size && info->params.mode == MGSL_MODE_HDLC) || in tx_load()
4940 info->params.mode == MGSL_MODE_RAW) in tx_load()
4946 if (i != info->tbuf_start) in tx_load()
4950 if (++i == info->tbuf_count) in tx_load()
4954 info->tbuf_current = i; in tx_load()
4957 d = &info->tbufs[info->tbuf_start]; in tx_load()
4961 if (!info->tx_active) in tx_load()
4962 tx_start(info); in tx_load()
4963 update_tx_timer(info); in tx_load()
4968 static int register_test(struct slgt_info *info) in register_test() argument
4977 wr_reg16(info, TIR, patterns[i]); in register_test()
4978 wr_reg16(info, BDR, patterns[(i+1)%count]); in register_test()
4979 if ((rd_reg16(info, TIR) != patterns[i]) || in register_test()
4980 (rd_reg16(info, BDR) != patterns[(i+1)%count])) { in register_test()
4985 info->gpio_present = (rd_reg32(info, JCR) & BIT5) ? 1 : 0; in register_test()
4986 info->init_error = rc ? 0 : DiagStatus_AddressFailure; in register_test()
4990 static int irq_test(struct slgt_info *info) in irq_test() argument
4994 struct tty_struct *oldtty = info->port.tty; in irq_test()
4995 u32 speed = info->params.data_rate; in irq_test()
4997 info->params.data_rate = 921600; in irq_test()
4998 info->port.tty = NULL; in irq_test()
5000 spin_lock_irqsave(&info->lock, flags); in irq_test()
5001 async_mode(info); in irq_test()
5002 slgt_irq_on(info, IRQ_TXIDLE); in irq_test()
5005 wr_reg16(info, TCR, in irq_test()
5006 (unsigned short)(rd_reg16(info, TCR) | BIT1)); in irq_test()
5009 wr_reg16(info, TDR, 0); in irq_test()
5012 info->init_error = DiagStatus_IrqFailure; in irq_test()
5013 info->irq_occurred = false; in irq_test()
5015 spin_unlock_irqrestore(&info->lock, flags); in irq_test()
5018 while(timeout-- && !info->irq_occurred) in irq_test()
5021 spin_lock_irqsave(&info->lock,flags); in irq_test()
5022 reset_port(info); in irq_test()
5023 spin_unlock_irqrestore(&info->lock,flags); in irq_test()
5025 info->params.data_rate = speed; in irq_test()
5026 info->port.tty = oldtty; in irq_test()
5028 info->init_error = info->irq_occurred ? 0 : DiagStatus_IrqFailure; in irq_test()
5029 return info->irq_occurred ? 0 : -ENODEV; in irq_test()
5032 static int loopback_test_rx(struct slgt_info *info) in loopback_test_rx() argument
5037 if (desc_complete(info->rbufs[0])) { in loopback_test_rx()
5038 count = desc_count(info->rbufs[0]); in loopback_test_rx()
5039 src = info->rbufs[0].buf; in loopback_test_rx()
5040 dest = info->tmp_rbuf; in loopback_test_rx()
5047 info->tmp_rbuf_count++; in loopback_test_rx()
5050 DBGDATA(info, info->tmp_rbuf, info->tmp_rbuf_count, "rx"); in loopback_test_rx()
5056 static int loopback_test(struct slgt_info *info) in loopback_test() argument
5066 struct tty_struct *oldtty = info->port.tty; in loopback_test()
5069 memcpy(¶ms, &info->params, sizeof(params)); in loopback_test()
5071 info->params.mode = MGSL_MODE_ASYNC; in loopback_test()
5072 info->params.data_rate = 921600; in loopback_test()
5073 info->params.loopback = 1; in loopback_test()
5074 info->port.tty = NULL; in loopback_test()
5080 info->tmp_rbuf_count = 0; in loopback_test()
5081 memset(info->tmp_rbuf, 0, TESTFRAMESIZE); in loopback_test()
5084 spin_lock_irqsave(&info->lock,flags); in loopback_test()
5085 async_mode(info); in loopback_test()
5086 rx_start(info); in loopback_test()
5087 tx_load(info, buf, count); in loopback_test()
5088 spin_unlock_irqrestore(&info->lock, flags); in loopback_test()
5093 if (loopback_test_rx(info)) { in loopback_test()
5100 if (!rc && (info->tmp_rbuf_count != count || in loopback_test()
5101 memcmp(buf, info->tmp_rbuf, count))) { in loopback_test()
5105 spin_lock_irqsave(&info->lock,flags); in loopback_test()
5106 reset_adapter(info); in loopback_test()
5107 spin_unlock_irqrestore(&info->lock,flags); in loopback_test()
5109 memcpy(&info->params, ¶ms, sizeof(info->params)); in loopback_test()
5110 info->port.tty = oldtty; in loopback_test()
5112 info->init_error = rc ? DiagStatus_DmaFailure : 0; in loopback_test()
5116 static int adapter_test(struct slgt_info *info) in adapter_test() argument
5118 DBGINFO(("testing %s\n", info->device_name)); in adapter_test()
5119 if (register_test(info) < 0) { in adapter_test()
5121 info->device_name, info->phys_reg_addr); in adapter_test()
5122 } else if (irq_test(info) < 0) { in adapter_test()
5124 info->device_name, info->irq_level); in adapter_test()
5125 } else if (loopback_test(info) < 0) { in adapter_test()
5126 printk("loopback test failure %s\n", info->device_name); in adapter_test()
5128 return info->init_error; in adapter_test()
5136 struct slgt_info *info = (struct slgt_info*)context; in tx_timeout() local
5139 DBGINFO(("%s tx_timeout\n", info->device_name)); in tx_timeout()
5140 if(info->tx_active && info->params.mode == MGSL_MODE_HDLC) { in tx_timeout()
5141 info->icount.txtimeout++; in tx_timeout()
5143 spin_lock_irqsave(&info->lock,flags); in tx_timeout()
5144 tx_stop(info); in tx_timeout()
5145 spin_unlock_irqrestore(&info->lock,flags); in tx_timeout()
5148 if (info->netcount) in tx_timeout()
5149 hdlcdev_tx_done(info); in tx_timeout()
5152 bh_transmit(info); in tx_timeout()
5160 struct slgt_info *info = (struct slgt_info*)context; in rx_timeout() local
5163 DBGINFO(("%s rx_timeout\n", info->device_name)); in rx_timeout()
5164 spin_lock_irqsave(&info->lock, flags); in rx_timeout()
5165 info->pending_bh |= BH_RECEIVE; in rx_timeout()
5166 spin_unlock_irqrestore(&info->lock, flags); in rx_timeout()
5167 bh_handler(&info->task); in rx_timeout()