601 void usc_DisableMasterIrqBit( struct mgsl_struct *info );
602 void usc_EnableMasterIrqBit( struct mgsl_struct *info );
603 void usc_EnableInterrupts( struct mgsl_struct *info, u16 IrqMask );
604 void usc_DisableInterrupts( struct mgsl_struct *info, u16 IrqMask );
605 void usc_ClearIrqPendingBits( struct mgsl_struct *info, u16 IrqMask );
665 static u16  usc_InDmaReg( struct mgsl_struct *info, u16 Port );
666 static void usc_OutDmaReg( struct mgsl_struct *info, u16 Port, u16 Value );
667 static void usc_DmaCmd( struct mgsl_struct *info, u16 Cmd );
669 static u16  usc_InReg( struct mgsl_struct *info, u16 Port );
670 static void usc_OutReg( struct mgsl_struct *info, u16 Port, u16 Value );
671 static void usc_RTCmd( struct mgsl_struct *info, u16 Cmd );
672 void usc_RCmd( struct mgsl_struct *info, u16 Cmd );
673 void usc_TCmd( struct mgsl_struct *info, u16 Cmd );
680 static void usc_process_rxoverrun_sync( struct mgsl_struct *info );
681 static void usc_start_receiver( struct mgsl_struct *info );
682 static void usc_stop_receiver( struct mgsl_struct *info );
684 static void usc_start_transmitter( struct mgsl_struct *info );
685 static void usc_stop_transmitter( struct mgsl_struct *info );
686 static void usc_set_txidle( struct mgsl_struct *info );
687 static void usc_load_txfifo( struct mgsl_struct *info );
689 static void usc_enable_aux_clock( struct mgsl_struct *info, u32 DataRate );
690 static void usc_enable_loopback( struct mgsl_struct *info, int enable );
692 static void usc_get_serial_signals( struct mgsl_struct *info );
693 static void usc_set_serial_signals( struct mgsl_struct *info );
695 static void usc_reset( struct mgsl_struct *info );
697 static void usc_set_sync_mode( struct mgsl_struct *info );
698 static void usc_set_sdlc_mode( struct mgsl_struct *info );
699 static void usc_set_async_mode( struct mgsl_struct *info );
700 static void usc_enable_async_clock( struct mgsl_struct *info, u32 DataRate );
702 static void usc_loopback_frame( struct mgsl_struct *info );
707 static void usc_loopmode_cancel_transmit( struct mgsl_struct * info );
708 static void usc_loopmode_insert_request( struct mgsl_struct * info );
709 static int usc_loopmode_active( struct mgsl_struct * info);
710 static void usc_loopmode_send_done( struct mgsl_struct * info );
712 static int mgsl_ioctl_common(struct mgsl_struct *info, unsigned int cmd, unsigned long arg);
716 static void hdlcdev_tx_done(struct mgsl_struct *info);
717 static void hdlcdev_rx(struct mgsl_struct *info, char *buf, int size);
718 static int  hdlcdev_init(struct mgsl_struct *info);
719 static void hdlcdev_exit(struct mgsl_struct *info);
738 static void mgsl_trace_block(struct mgsl_struct *info,const char* data, int count, int xmit);
743 static bool mgsl_register_test( struct mgsl_struct *info );
744 static bool mgsl_irq_test( struct mgsl_struct *info );
745 static bool mgsl_dma_test( struct mgsl_struct *info );
746 static bool mgsl_memory_test( struct mgsl_struct *info );
747 static int mgsl_adapter_test( struct mgsl_struct *info );
752 static int mgsl_claim_resources(struct mgsl_struct *info);
753 static void mgsl_release_resources(struct mgsl_struct *info);
754 static void mgsl_add_device(struct mgsl_struct *info);
760 static void mgsl_free_rx_frame_buffers( struct mgsl_struct *info, unsigned int StartIndex, unsigned…
761 static bool mgsl_get_rx_frame( struct mgsl_struct *info );
762 static bool mgsl_get_raw_rx_frame( struct mgsl_struct *info );
763 static void mgsl_reset_rx_dma_buffers( struct mgsl_struct *info );
764 static void mgsl_reset_tx_dma_buffers( struct mgsl_struct *info );
765 static int num_free_tx_dma_buffers(struct mgsl_struct *info);
766 static void mgsl_load_tx_dma_buffer( struct mgsl_struct *info, const char *Buffer, unsigned int Buf…
772 static int  mgsl_allocate_dma_buffers(struct mgsl_struct *info);
773 static void mgsl_free_dma_buffers(struct mgsl_struct *info);
774 static int  mgsl_alloc_frame_memory(struct mgsl_struct *info, DMABUFFERENTRY *BufferList,int Buffer…
775 static void mgsl_free_frame_memory(struct mgsl_struct *info, DMABUFFERENTRY *BufferList,int Bufferc…
776 static int  mgsl_alloc_buffer_list_memory(struct mgsl_struct *info);
777 static void mgsl_free_buffer_list_memory(struct mgsl_struct *info);
778 static int mgsl_alloc_intermediate_rxbuffer_memory(struct mgsl_struct *info);
779 static void mgsl_free_intermediate_rxbuffer_memory(struct mgsl_struct *info);
780 static int mgsl_alloc_intermediate_txbuffer_memory(struct mgsl_struct *info);
781 static void mgsl_free_intermediate_txbuffer_memory(struct mgsl_struct *info);
782 static bool load_next_tx_holding_buffer(struct mgsl_struct *info);
783 static int save_tx_buffer_request(struct mgsl_struct *info,const char *Buffer, unsigned int BufferS…
789 static void mgsl_bh_receive(struct mgsl_struct *info);
790 static void mgsl_bh_transmit(struct mgsl_struct *info);
791 static void mgsl_bh_status(struct mgsl_struct *info);
796 static void mgsl_isr_null( struct mgsl_struct *info );
797 static void mgsl_isr_transmit_data( struct mgsl_struct *info );
798 static void mgsl_isr_receive_data( struct mgsl_struct *info );
799 static void mgsl_isr_receive_status( struct mgsl_struct *info );
800 static void mgsl_isr_transmit_status( struct mgsl_struct *info );
801 static void mgsl_isr_io_pin( struct mgsl_struct *info );
802 static void mgsl_isr_misc( struct mgsl_struct *info );
803 static void mgsl_isr_receive_dma( struct mgsl_struct *info );
804 static void mgsl_isr_transmit_dma( struct mgsl_struct *info );
825 static int mgsl_get_stats(struct mgsl_struct * info, struct mgsl_icount
827 static int mgsl_get_params(struct mgsl_struct * info, MGSL_PARAMS  __user *user_params);
828 static int mgsl_set_params(struct mgsl_struct * info, MGSL_PARAMS  __user *new_params);
829 static int mgsl_get_txidle(struct mgsl_struct * info, int __user *idle_mode);
830 static int mgsl_set_txidle(struct mgsl_struct * info, int idle_mode);
831 static int mgsl_txenable(struct mgsl_struct * info, int enable);
832 static int mgsl_txabort(struct mgsl_struct * info);
833 static int mgsl_rxenable(struct mgsl_struct * info, int enable);
834 static int mgsl_wait_event(struct mgsl_struct * info, int __user *mask);
835 static int mgsl_loopmode_send_done( struct mgsl_struct * info );
909 static void mgsl_change_params(struct mgsl_struct *info);
923 static inline int mgsl_paranoia_check(struct mgsl_struct *info,  in mgsl_paranoia_check()  argument
932 	if (!info) {  in mgsl_paranoia_check()
936 	if (info->magic != MGSL_MAGIC) {  in mgsl_paranoia_check()
941 	if (!info)  in mgsl_paranoia_check()
977 	struct mgsl_struct *info = tty->driver_data;  in mgsl_stop()  local
980 	if (mgsl_paranoia_check(info, tty->name, "mgsl_stop"))  in mgsl_stop()
984 		printk("mgsl_stop(%s)\n",info->device_name);	  in mgsl_stop()
986 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_stop()
987 	if (info->tx_enabled)  in mgsl_stop()
988 	 	usc_stop_transmitter(info);  in mgsl_stop()
989 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_stop()
1000 	struct mgsl_struct *info = tty->driver_data;  in mgsl_start()  local
1003 	if (mgsl_paranoia_check(info, tty->name, "mgsl_start"))  in mgsl_start()
1007 		printk("mgsl_start(%s)\n",info->device_name);	  in mgsl_start()
1009 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_start()
1010 	if (!info->tx_enabled)  in mgsl_start()
1011 	 	usc_start_transmitter(info);  in mgsl_start()
1012 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_start()
1023 static int mgsl_bh_action(struct mgsl_struct *info)  in mgsl_bh_action()  argument
1028 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_bh_action()
1030 	if (info->pending_bh & BH_RECEIVE) {  in mgsl_bh_action()
1031 		info->pending_bh &= ~BH_RECEIVE;  in mgsl_bh_action()
1033 	} else if (info->pending_bh & BH_TRANSMIT) {  in mgsl_bh_action()
1034 		info->pending_bh &= ~BH_TRANSMIT;  in mgsl_bh_action()
1036 	} else if (info->pending_bh & BH_STATUS) {  in mgsl_bh_action()
1037 		info->pending_bh &= ~BH_STATUS;  in mgsl_bh_action()
1043 		info->bh_running = false;  in mgsl_bh_action()
1044 		info->bh_requested = false;  in mgsl_bh_action()
1047 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_bh_action()
1057 	struct mgsl_struct *info =  in mgsl_bh_handler()  local
1063 			__FILE__,__LINE__,info->device_name);  in mgsl_bh_handler()
1065 	info->bh_running = true;  in mgsl_bh_handler()
1067 	while((action = mgsl_bh_action(info)) != 0) {  in mgsl_bh_handler()
1077 			mgsl_bh_receive(info);  in mgsl_bh_handler()
1080 			mgsl_bh_transmit(info);  in mgsl_bh_handler()
1083 			mgsl_bh_status(info);  in mgsl_bh_handler()
1094 			__FILE__,__LINE__,info->device_name);  in mgsl_bh_handler()
1097 static void mgsl_bh_receive(struct mgsl_struct *info)  in mgsl_bh_receive()  argument
1099 	bool (*get_rx_frame)(struct mgsl_struct *info) =  in mgsl_bh_receive()
1100 		(info->params.mode == MGSL_MODE_HDLC ? mgsl_get_rx_frame : mgsl_get_raw_rx_frame);  in mgsl_bh_receive()
1104 			__FILE__,__LINE__,info->device_name);  in mgsl_bh_receive()
1108 		if (info->rx_rcc_underrun) {  in mgsl_bh_receive()
1110 			spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_bh_receive()
1111 			usc_start_receiver(info);  in mgsl_bh_receive()
1112 			spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_bh_receive()
1115 	} while(get_rx_frame(info));  in mgsl_bh_receive()
1118 static void mgsl_bh_transmit(struct mgsl_struct *info)  in mgsl_bh_transmit()  argument
1120 	struct tty_struct *tty = info->port.tty;  in mgsl_bh_transmit()
1125 			__FILE__,__LINE__,info->device_name);  in mgsl_bh_transmit()
1133 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_bh_transmit()
1134  	if ( !info->tx_active && info->loopmode_send_done_requested )  in mgsl_bh_transmit()
1135  		usc_loopmode_send_done( info );  in mgsl_bh_transmit()
1136 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_bh_transmit()
1139 static void mgsl_bh_status(struct mgsl_struct *info)  in mgsl_bh_status()  argument
1143 			__FILE__,__LINE__,info->device_name);  in mgsl_bh_status()
1145 	info->ri_chkcount = 0;  in mgsl_bh_status()
1146 	info->dsr_chkcount = 0;  in mgsl_bh_status()
1147 	info->dcd_chkcount = 0;  in mgsl_bh_status()
1148 	info->cts_chkcount = 0;  in mgsl_bh_status()
1160 static void mgsl_isr_receive_status( struct mgsl_struct *info )  in mgsl_isr_receive_status()  argument
1162 	u16 status = usc_InReg( info, RCSR );  in mgsl_isr_receive_status()
1169 		info->loopmode_insert_requested &&  in mgsl_isr_receive_status()
1170  		usc_loopmode_active(info) )  in mgsl_isr_receive_status()
1172 		++info->icount.rxabort;  in mgsl_isr_receive_status()
1173 	 	info->loopmode_insert_requested = false;  in mgsl_isr_receive_status()
1176 		info->cmr_value &= ~BIT13;  in mgsl_isr_receive_status()
1177  		usc_OutReg(info, CMR, info->cmr_value);  in mgsl_isr_receive_status()
1180 	 	usc_OutReg(info, RICR,  in mgsl_isr_receive_status()
1181  			(usc_InReg(info, RICR) & ~RXSTATUS_ABORT_RECEIVED));  in mgsl_isr_receive_status()
1186 			info->icount.exithunt++;  in mgsl_isr_receive_status()
1188 			info->icount.rxidle++;  in mgsl_isr_receive_status()
1189 		wake_up_interruptible(&info->event_wait_q);  in mgsl_isr_receive_status()
1193 		info->icount.rxover++;  in mgsl_isr_receive_status()
1194 		usc_process_rxoverrun_sync( info );  in mgsl_isr_receive_status()
1197 	usc_ClearIrqPendingBits( info, RECEIVE_STATUS );  in mgsl_isr_receive_status()
1198 	usc_UnlatchRxstatusBits( info, status );  in mgsl_isr_receive_status()
1212 static void mgsl_isr_transmit_status( struct mgsl_struct *info )  in mgsl_isr_transmit_status()  argument
1214 	u16 status = usc_InReg( info, TCSR );  in mgsl_isr_transmit_status()
1220 	usc_ClearIrqPendingBits( info, TRANSMIT_STATUS );  in mgsl_isr_transmit_status()
1221 	usc_UnlatchTxstatusBits( info, status );  in mgsl_isr_transmit_status()
1230  		usc_DmaCmd( info, DmaCmd_ResetTxChannel );  in mgsl_isr_transmit_status()
1231  		usc_RTCmd( info, RTCmd_PurgeTxFifo );  in mgsl_isr_transmit_status()
1235 		info->icount.txok++;  in mgsl_isr_transmit_status()
1237 		info->icount.txunder++;  in mgsl_isr_transmit_status()
1239 		info->icount.txabort++;  in mgsl_isr_transmit_status()
1241 		info->icount.txunder++;  in mgsl_isr_transmit_status()
1243 	info->tx_active = false;  in mgsl_isr_transmit_status()
1244 	info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;  in mgsl_isr_transmit_status()
1245 	del_timer(&info->tx_timer);	  in mgsl_isr_transmit_status()
1247 	if ( info->drop_rts_on_tx_done ) {  in mgsl_isr_transmit_status()
1248 		usc_get_serial_signals( info );  in mgsl_isr_transmit_status()
1249 		if ( info->serial_signals & SerialSignal_RTS ) {  in mgsl_isr_transmit_status()
1250 			info->serial_signals &= ~SerialSignal_RTS;  in mgsl_isr_transmit_status()
1251 			usc_set_serial_signals( info );  in mgsl_isr_transmit_status()
1253 		info->drop_rts_on_tx_done = false;  in mgsl_isr_transmit_status()
1257 	if (info->netcount)  in mgsl_isr_transmit_status()
1258 		hdlcdev_tx_done(info);  in mgsl_isr_transmit_status()
1262 		if (info->port.tty->stopped || info->port.tty->hw_stopped) {  in mgsl_isr_transmit_status()
1263 			usc_stop_transmitter(info);  in mgsl_isr_transmit_status()
1266 		info->pending_bh |= BH_TRANSMIT;  in mgsl_isr_transmit_status()
1279 static void mgsl_isr_io_pin( struct mgsl_struct *info )  in mgsl_isr_io_pin()  argument
1282 	u16 status = usc_InReg( info, MISR );  in mgsl_isr_io_pin()
1288 	usc_ClearIrqPendingBits( info, IO_PIN );  in mgsl_isr_io_pin()
1289 	usc_UnlatchIostatusBits( info, status );  in mgsl_isr_io_pin()
1293 		icount = &info->icount;  in mgsl_isr_io_pin()
1296 			if ((info->ri_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT)  in mgsl_isr_io_pin()
1297 				usc_DisablestatusIrqs(info,SICR_RI);  in mgsl_isr_io_pin()
1300 				info->input_signal_events.ri_up++;	  in mgsl_isr_io_pin()
1302 				info->input_signal_events.ri_down++;	  in mgsl_isr_io_pin()
1305 			if ((info->dsr_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT)  in mgsl_isr_io_pin()
1306 				usc_DisablestatusIrqs(info,SICR_DSR);  in mgsl_isr_io_pin()
1309 				info->input_signal_events.dsr_up++;  in mgsl_isr_io_pin()
1311 				info->input_signal_events.dsr_down++;  in mgsl_isr_io_pin()
1314 			if ((info->dcd_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT)  in mgsl_isr_io_pin()
1315 				usc_DisablestatusIrqs(info,SICR_DCD);  in mgsl_isr_io_pin()
1318 				info->input_signal_events.dcd_up++;  in mgsl_isr_io_pin()
1320 				info->input_signal_events.dcd_down++;  in mgsl_isr_io_pin()
1322 			if (info->netcount) {  in mgsl_isr_io_pin()
1324 					netif_carrier_on(info->netdev);  in mgsl_isr_io_pin()
1326 					netif_carrier_off(info->netdev);  in mgsl_isr_io_pin()
1332 			if ((info->cts_chkcount)++ >= IO_PIN_SHUTDOWN_LIMIT)  in mgsl_isr_io_pin()
1333 				usc_DisablestatusIrqs(info,SICR_CTS);  in mgsl_isr_io_pin()
1336 				info->input_signal_events.cts_up++;  in mgsl_isr_io_pin()
1338 				info->input_signal_events.cts_down++;  in mgsl_isr_io_pin()
1340 		wake_up_interruptible(&info->status_event_wait_q);  in mgsl_isr_io_pin()
1341 		wake_up_interruptible(&info->event_wait_q);  in mgsl_isr_io_pin()
1343 		if ( (info->port.flags & ASYNC_CHECK_CD) &&   in mgsl_isr_io_pin()
1346 				printk("%s CD now %s...", info->device_name,  in mgsl_isr_io_pin()
1349 				wake_up_interruptible(&info->port.open_wait);  in mgsl_isr_io_pin()
1353 				if (info->port.tty)  in mgsl_isr_io_pin()
1354 					tty_hangup(info->port.tty);  in mgsl_isr_io_pin()
1358 		if (tty_port_cts_enabled(&info->port) &&  in mgsl_isr_io_pin()
1360 			if (info->port.tty->hw_stopped) {  in mgsl_isr_io_pin()
1364 					if (info->port.tty)  in mgsl_isr_io_pin()
1365 						info->port.tty->hw_stopped = 0;  in mgsl_isr_io_pin()
1366 					usc_start_transmitter(info);  in mgsl_isr_io_pin()
1367 					info->pending_bh |= BH_TRANSMIT;  in mgsl_isr_io_pin()
1374 					if (info->port.tty)  in mgsl_isr_io_pin()
1375 						info->port.tty->hw_stopped = 1;  in mgsl_isr_io_pin()
1376 					usc_stop_transmitter(info);  in mgsl_isr_io_pin()
1382 	info->pending_bh |= BH_STATUS;  in mgsl_isr_io_pin()
1386 		usc_OutReg( info, SICR,  in mgsl_isr_io_pin()
1387 			(unsigned short)(usc_InReg(info,SICR) & ~(SICR_TXC_ACTIVE+SICR_TXC_INACTIVE)) );  in mgsl_isr_io_pin()
1388 		usc_UnlatchIostatusBits( info, MISCSTATUS_TXC_LATCHED );  in mgsl_isr_io_pin()
1389 		info->irq_occurred = true;  in mgsl_isr_io_pin()
1401 static void mgsl_isr_transmit_data( struct mgsl_struct *info )  in mgsl_isr_transmit_data()  argument
1405 			__FILE__,__LINE__,info->xmit_cnt);  in mgsl_isr_transmit_data()
1407 	usc_ClearIrqPendingBits( info, TRANSMIT_DATA );  in mgsl_isr_transmit_data()
1409 	if (info->port.tty->stopped || info->port.tty->hw_stopped) {  in mgsl_isr_transmit_data()
1410 		usc_stop_transmitter(info);  in mgsl_isr_transmit_data()
1414 	if ( info->xmit_cnt )  in mgsl_isr_transmit_data()
1415 		usc_load_txfifo( info );  in mgsl_isr_transmit_data()
1417 		info->tx_active = false;  in mgsl_isr_transmit_data()
1419 	if (info->xmit_cnt < WAKEUP_CHARS)  in mgsl_isr_transmit_data()
1420 		info->pending_bh |= BH_TRANSMIT;  in mgsl_isr_transmit_data()
1433 static void mgsl_isr_receive_data( struct mgsl_struct *info )  in mgsl_isr_receive_data()  argument
1439  	struct	mgsl_icount *icount = &info->icount;  in mgsl_isr_receive_data()
1445 	usc_ClearIrqPendingBits( info, RECEIVE_DATA );  in mgsl_isr_receive_data()
1448 	usc_RCmd( info, RCmd_SelectRicrRxFifostatus );  in mgsl_isr_receive_data()
1452 	usc_OutReg( info, RICR+LSBONLY, (u16)(usc_InReg(info, RICR+LSBONLY) & ~BIT3 ));  in mgsl_isr_receive_data()
1456 	while( (Fifocount = (usc_InReg(info,RICR) >> 8)) ) {  in mgsl_isr_receive_data()
1460 		outw( (inw(info->io_base + CCAR) & 0x0780) | (RDR+LSBONLY),  in mgsl_isr_receive_data()
1461 		      info->io_base + CCAR );  in mgsl_isr_receive_data()
1462 		DataByte = inb( info->io_base + CCAR );  in mgsl_isr_receive_data()
1465 		status = usc_InReg(info, RCSR);  in mgsl_isr_receive_data()
1468 			usc_UnlatchRxstatusBits(info,RXSTATUS_ALL);  in mgsl_isr_receive_data()
1487 				usc_RTCmd(info,RTCmd_PurgeRxFifo);  in mgsl_isr_receive_data()
1492 			if (status & info->ignore_status_mask)  in mgsl_isr_receive_data()
1495 			status &= info->read_status_mask;  in mgsl_isr_receive_data()
1499 				if (info->port.flags & ASYNC_SAK)  in mgsl_isr_receive_data()
1500 					do_SAK(info->port.tty);  in mgsl_isr_receive_data()
1506 		tty_insert_flip_char(&info->port, DataByte, flag);  in mgsl_isr_receive_data()
1512 			work += tty_insert_flip_char(&info->port, 0, TTY_OVERRUN);  in mgsl_isr_receive_data()
1523 		tty_flip_buffer_push(&info->port);  in mgsl_isr_receive_data()
1533 static void mgsl_isr_misc( struct mgsl_struct *info )  in mgsl_isr_misc()  argument
1535 	u16 status = usc_InReg( info, MISR );  in mgsl_isr_misc()
1542 	    (info->params.mode == MGSL_MODE_HDLC)) {  in mgsl_isr_misc()
1545 		usc_EnableReceiver(info,DISABLE_UNCONDITIONAL);  in mgsl_isr_misc()
1546 		usc_DmaCmd(info, DmaCmd_ResetRxChannel);  in mgsl_isr_misc()
1547 		usc_UnlatchRxstatusBits(info, RXSTATUS_ALL);  in mgsl_isr_misc()
1548 		usc_ClearIrqPendingBits(info, RECEIVE_DATA | RECEIVE_STATUS);  in mgsl_isr_misc()
1549 		usc_DisableInterrupts(info, RECEIVE_DATA | RECEIVE_STATUS);  in mgsl_isr_misc()
1552 		info->pending_bh |= BH_RECEIVE;  in mgsl_isr_misc()
1553 		info->rx_rcc_underrun = true;  in mgsl_isr_misc()
1556 	usc_ClearIrqPendingBits( info, MISC );  in mgsl_isr_misc()
1557 	usc_UnlatchMiscstatusBits( info, status );  in mgsl_isr_misc()
1569 static void mgsl_isr_null( struct mgsl_struct *info )  in mgsl_isr_null()  argument
1593 static void mgsl_isr_receive_dma( struct mgsl_struct *info )  in mgsl_isr_receive_dma()  argument
1598 	usc_OutDmaReg( info, CDIR, BIT9 | BIT1 );  in mgsl_isr_receive_dma()
1602 	status = usc_InDmaReg( info, RDMR );  in mgsl_isr_receive_dma()
1606 			__FILE__,__LINE__,info->device_name,status);  in mgsl_isr_receive_dma()
1608 	info->pending_bh |= BH_RECEIVE;  in mgsl_isr_receive_dma()
1611 		info->rx_overflow = true;  in mgsl_isr_receive_dma()
1612 		info->icount.buf_overrun++;  in mgsl_isr_receive_dma()
1637 static void mgsl_isr_transmit_dma( struct mgsl_struct *info )  in mgsl_isr_transmit_dma()  argument
1642 	usc_OutDmaReg(info, CDIR, BIT8 | BIT0 );  in mgsl_isr_transmit_dma()
1647 	status = usc_InDmaReg( info, TDMR );  in mgsl_isr_transmit_dma()
1651 			__FILE__,__LINE__,info->device_name,status);  in mgsl_isr_transmit_dma()
1654 		--info->tx_dma_buffers_used;  in mgsl_isr_transmit_dma()
1659 		if ( load_next_tx_holding_buffer(info) ) {  in mgsl_isr_transmit_dma()
1663 			info->pending_bh |= BH_TRANSMIT;  in mgsl_isr_transmit_dma()
1682 	struct mgsl_struct *info = dev_id;  in mgsl_interrupt()  local
1688 			__FILE__, __LINE__, info->irq_level);  in mgsl_interrupt()
1690 	spin_lock(&info->irq_spinlock);  in mgsl_interrupt()
1694 		UscVector = usc_InReg(info, IVR) >> 9;  in mgsl_interrupt()
1695 		DmaVector = usc_InDmaReg(info, DIVR);  in mgsl_interrupt()
1699 				__FILE__,__LINE__,info->device_name,UscVector,DmaVector);  in mgsl_interrupt()
1706 			(*UscIsrTable[UscVector])(info);  in mgsl_interrupt()
1708 			mgsl_isr_transmit_dma(info);  in mgsl_interrupt()
1710 			mgsl_isr_receive_dma(info);  in mgsl_interrupt()
1712 		if ( info->isr_overflow ) {  in mgsl_interrupt()
1714 				__FILE__, __LINE__, info->device_name, info->irq_level);  in mgsl_interrupt()
1715 			usc_DisableMasterIrqBit(info);  in mgsl_interrupt()
1716 			usc_DisableDmaInterrupts(info,DICR_MASTER);  in mgsl_interrupt()
1725 	if ( info->pending_bh && !info->bh_running && !info->bh_requested ) {  in mgsl_interrupt()
1728 				__FILE__,__LINE__,info->device_name);  in mgsl_interrupt()
1729 		schedule_work(&info->task);  in mgsl_interrupt()
1730 		info->bh_requested = true;  in mgsl_interrupt()
1733 	spin_unlock(&info->irq_spinlock);  in mgsl_interrupt()
1737 			__FILE__, __LINE__, info->irq_level);  in mgsl_interrupt()
1749 static int startup(struct mgsl_struct * info)  in startup()  argument
1754 		printk("%s(%d):mgsl_startup(%s)\n",__FILE__,__LINE__,info->device_name);  in startup()
1756 	if (info->port.flags & ASYNC_INITIALIZED)  in startup()
1759 	if (!info->xmit_buf) {  in startup()
1761 		info->xmit_buf = (unsigned char *)get_zeroed_page(GFP_KERNEL);  in startup()
1762 		if (!info->xmit_buf) {  in startup()
1764 				__FILE__,__LINE__,info->device_name);  in startup()
1769 	info->pending_bh = 0;  in startup()
1771 	memset(&info->icount, 0, sizeof(info->icount));  in startup()
1773 	setup_timer(&info->tx_timer, mgsl_tx_timeout, (unsigned long)info);  in startup()
1776 	retval = mgsl_claim_resources(info);  in startup()
1780 		retval = mgsl_adapter_test(info);  in startup()
1783   		if (capable(CAP_SYS_ADMIN) && info->port.tty)  in startup()
1784 			set_bit(TTY_IO_ERROR, &info->port.tty->flags);  in startup()
1785 		mgsl_release_resources(info);  in startup()
1790 	mgsl_change_params(info);  in startup()
1792 	if (info->port.tty)  in startup()
1793 		clear_bit(TTY_IO_ERROR, &info->port.tty->flags);  in startup()
1795 	info->port.flags |= ASYNC_INITIALIZED;  in startup()
1808 static void shutdown(struct mgsl_struct * info)  in shutdown()  argument
1812 	if (!(info->port.flags & ASYNC_INITIALIZED))  in shutdown()
1817 			 __FILE__,__LINE__, info->device_name );  in shutdown()
1821 	wake_up_interruptible(&info->status_event_wait_q);  in shutdown()
1822 	wake_up_interruptible(&info->event_wait_q);  in shutdown()
1824 	del_timer_sync(&info->tx_timer);  in shutdown()
1826 	if (info->xmit_buf) {  in shutdown()
1827 		free_page((unsigned long) info->xmit_buf);  in shutdown()
1828 		info->xmit_buf = NULL;  in shutdown()
1831 	spin_lock_irqsave(&info->irq_spinlock,flags);  in shutdown()
1832 	usc_DisableMasterIrqBit(info);  in shutdown()
1833 	usc_stop_receiver(info);  in shutdown()
1834 	usc_stop_transmitter(info);  in shutdown()
1835 	usc_DisableInterrupts(info,RECEIVE_DATA | RECEIVE_STATUS |  in shutdown()
1837 	usc_DisableDmaInterrupts(info,DICR_MASTER + DICR_TRANSMIT + DICR_RECEIVE);  in shutdown()
1842 	usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT15) | BIT14));  in shutdown()
1847 	usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) | BIT12));  in shutdown()
1849 	if (!info->port.tty || info->port.tty->termios.c_cflag & HUPCL) {  in shutdown()
1850 		info->serial_signals &= ~(SerialSignal_RTS | SerialSignal_DTR);  in shutdown()
1851 		usc_set_serial_signals(info);  in shutdown()
1854 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in shutdown()
1856 	mgsl_release_resources(info);	  in shutdown()
1858 	if (info->port.tty)  in shutdown()
1859 		set_bit(TTY_IO_ERROR, &info->port.tty->flags);  in shutdown()
1861 	info->port.flags &= ~ASYNC_INITIALIZED;  in shutdown()
1865 static void mgsl_program_hw(struct mgsl_struct *info)  in mgsl_program_hw()  argument
1869 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_program_hw()
1871 	usc_stop_receiver(info);  in mgsl_program_hw()
1872 	usc_stop_transmitter(info);  in mgsl_program_hw()
1873 	info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;  in mgsl_program_hw()
1875 	if (info->params.mode == MGSL_MODE_HDLC ||  in mgsl_program_hw()
1876 	    info->params.mode == MGSL_MODE_RAW ||  in mgsl_program_hw()
1877 	    info->netcount)  in mgsl_program_hw()
1878 		usc_set_sync_mode(info);  in mgsl_program_hw()
1880 		usc_set_async_mode(info);  in mgsl_program_hw()
1882 	usc_set_serial_signals(info);  in mgsl_program_hw()
1884 	info->dcd_chkcount = 0;  in mgsl_program_hw()
1885 	info->cts_chkcount = 0;  in mgsl_program_hw()
1886 	info->ri_chkcount = 0;  in mgsl_program_hw()
1887 	info->dsr_chkcount = 0;  in mgsl_program_hw()
1889 	usc_EnableStatusIrqs(info,SICR_CTS+SICR_DSR+SICR_DCD+SICR_RI);  in mgsl_program_hw()
1890 	usc_EnableInterrupts(info, IO_PIN);  in mgsl_program_hw()
1891 	usc_get_serial_signals(info);  in mgsl_program_hw()
1893 	if (info->netcount || info->port.tty->termios.c_cflag & CREAD)  in mgsl_program_hw()
1894 		usc_start_receiver(info);  in mgsl_program_hw()
1896 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_program_hw()
1901 static void mgsl_change_params(struct mgsl_struct *info)  in mgsl_change_params()  argument
1906 	if (!info->port.tty)  in mgsl_change_params()
1911 			 __FILE__,__LINE__, info->device_name );  in mgsl_change_params()
1913 	cflag = info->port.tty->termios.c_cflag;  in mgsl_change_params()
1918 		info->serial_signals |= SerialSignal_RTS | SerialSignal_DTR;  in mgsl_change_params()
1920 		info->serial_signals &= ~(SerialSignal_RTS | SerialSignal_DTR);  in mgsl_change_params()
1925 	      case CS5: info->params.data_bits = 5; break;  in mgsl_change_params()
1926 	      case CS6: info->params.data_bits = 6; break;  in mgsl_change_params()
1927 	      case CS7: info->params.data_bits = 7; break;  in mgsl_change_params()
1928 	      case CS8: info->params.data_bits = 8; break;  in mgsl_change_params()
1930 	      default:  info->params.data_bits = 7; break;  in mgsl_change_params()
1934 		info->params.stop_bits = 2;  in mgsl_change_params()
1936 		info->params.stop_bits = 1;  in mgsl_change_params()
1938 	info->params.parity = ASYNC_PARITY_NONE;  in mgsl_change_params()
1941 			info->params.parity = ASYNC_PARITY_ODD;  in mgsl_change_params()
1943 			info->params.parity = ASYNC_PARITY_EVEN;  in mgsl_change_params()
1946 			info->params.parity = ASYNC_PARITY_SPACE;  in mgsl_change_params()
1953 	bits_per_char = info->params.data_bits +   in mgsl_change_params()
1954 			info->params.stop_bits + 1;  in mgsl_change_params()
1960 	if (info->params.data_rate <= 460800)  in mgsl_change_params()
1961 		info->params.data_rate = tty_get_baud_rate(info->port.tty);  in mgsl_change_params()
1963 	if ( info->params.data_rate ) {  in mgsl_change_params()
1964 		info->timeout = (32*HZ*bits_per_char) /   in mgsl_change_params()
1965 				info->params.data_rate;  in mgsl_change_params()
1967 	info->timeout += HZ/50;		/* Add .02 seconds of slop */  in mgsl_change_params()
1970 		info->port.flags |= ASYNC_CTS_FLOW;  in mgsl_change_params()
1972 		info->port.flags &= ~ASYNC_CTS_FLOW;  in mgsl_change_params()
1975 		info->port.flags &= ~ASYNC_CHECK_CD;  in mgsl_change_params()
1977 		info->port.flags |= ASYNC_CHECK_CD;  in mgsl_change_params()
1981 	info->read_status_mask = RXSTATUS_OVERRUN;  in mgsl_change_params()
1982 	if (I_INPCK(info->port.tty))  in mgsl_change_params()
1983 		info->read_status_mask |= RXSTATUS_PARITY_ERROR | RXSTATUS_FRAMING_ERROR;  in mgsl_change_params()
1984  	if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))  in mgsl_change_params()
1985  		info->read_status_mask |= RXSTATUS_BREAK_RECEIVED;  in mgsl_change_params()
1987 	if (I_IGNPAR(info->port.tty))  in mgsl_change_params()
1988 		info->ignore_status_mask |= RXSTATUS_PARITY_ERROR | RXSTATUS_FRAMING_ERROR;  in mgsl_change_params()
1989 	if (I_IGNBRK(info->port.tty)) {  in mgsl_change_params()
1990 		info->ignore_status_mask |= RXSTATUS_BREAK_RECEIVED;  in mgsl_change_params()
1994 		if (I_IGNPAR(info->port.tty))  in mgsl_change_params()
1995 			info->ignore_status_mask |= RXSTATUS_OVERRUN;  in mgsl_change_params()
1998 	mgsl_program_hw(info);  in mgsl_change_params()
2013 	struct mgsl_struct *info = tty->driver_data;  in mgsl_put_char()  local
2019 			__FILE__, __LINE__, ch, info->device_name);  in mgsl_put_char()
2022 	if (mgsl_paranoia_check(info, tty->name, "mgsl_put_char"))  in mgsl_put_char()
2025 	if (!info->xmit_buf)  in mgsl_put_char()
2028 	spin_lock_irqsave(&info->irq_spinlock, flags);  in mgsl_put_char()
2030 	if ((info->params.mode == MGSL_MODE_ASYNC ) || !info->tx_active) {  in mgsl_put_char()
2031 		if (info->xmit_cnt < SERIAL_XMIT_SIZE - 1) {  in mgsl_put_char()
2032 			info->xmit_buf[info->xmit_head++] = ch;  in mgsl_put_char()
2033 			info->xmit_head &= SERIAL_XMIT_SIZE-1;  in mgsl_put_char()
2034 			info->xmit_cnt++;  in mgsl_put_char()
2038 	spin_unlock_irqrestore(&info->irq_spinlock, flags);  in mgsl_put_char()
2053 	struct mgsl_struct *info = tty->driver_data;  in mgsl_flush_chars()  local
2058 			__FILE__,__LINE__,info->device_name,info->xmit_cnt);  in mgsl_flush_chars()
2060 	if (mgsl_paranoia_check(info, tty->name, "mgsl_flush_chars"))  in mgsl_flush_chars()
2063 	if (info->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||  in mgsl_flush_chars()
2064 	    !info->xmit_buf)  in mgsl_flush_chars()
2069 			__FILE__,__LINE__,info->device_name );  in mgsl_flush_chars()
2071 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_flush_chars()
2073 	if (!info->tx_active) {  in mgsl_flush_chars()
2074 		if ( (info->params.mode == MGSL_MODE_HDLC ||  in mgsl_flush_chars()
2075 			info->params.mode == MGSL_MODE_RAW) && info->xmit_cnt ) {  in mgsl_flush_chars()
2079 			mgsl_load_tx_dma_buffer(info,  in mgsl_flush_chars()
2080 				 info->xmit_buf,info->xmit_cnt);  in mgsl_flush_chars()
2082 	 	usc_start_transmitter(info);  in mgsl_flush_chars()
2085 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_flush_chars()
2105 	struct mgsl_struct *info = tty->driver_data;  in mgsl_write()  local
2110 			__FILE__,__LINE__,info->device_name,count);  in mgsl_write()
2112 	if (mgsl_paranoia_check(info, tty->name, "mgsl_write"))  in mgsl_write()
2115 	if (!info->xmit_buf)  in mgsl_write()
2118 	if ( info->params.mode == MGSL_MODE_HDLC ||  in mgsl_write()
2119 			info->params.mode == MGSL_MODE_RAW ) {  in mgsl_write()
2121 		if (info->tx_active) {  in mgsl_write()
2123 			if ( info->params.mode == MGSL_MODE_HDLC ) {  in mgsl_write()
2132 			if (info->tx_holding_count >= info->num_tx_holding_buffers ) {  in mgsl_write()
2140 			save_tx_buffer_request(info,buf,count);  in mgsl_write()
2145 			spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_write()
2146 			load_next_tx_holding_buffer(info);  in mgsl_write()
2147 			spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_write()
2155 		if ( (info->params.flags & HDLC_FLAG_HDLC_LOOPMODE) &&  in mgsl_write()
2156 			!usc_loopmode_active(info) )  in mgsl_write()
2162 		if ( info->xmit_cnt ) {  in mgsl_write()
2169 			mgsl_load_tx_dma_buffer(info,  in mgsl_write()
2170 				info->xmit_buf,info->xmit_cnt);  in mgsl_write()
2173 					__FILE__,__LINE__,info->device_name);  in mgsl_write()
2177 					__FILE__,__LINE__,info->device_name);  in mgsl_write()
2179 			info->xmit_cnt = count;  in mgsl_write()
2180 			mgsl_load_tx_dma_buffer(info,buf,count);  in mgsl_write()
2184 			spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_write()
2186 				min(SERIAL_XMIT_SIZE - info->xmit_cnt - 1,  in mgsl_write()
2187 				    SERIAL_XMIT_SIZE - info->xmit_head));  in mgsl_write()
2189 				spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_write()
2192 			memcpy(info->xmit_buf + info->xmit_head, buf, c);  in mgsl_write()
2193 			info->xmit_head = ((info->xmit_head + c) &  in mgsl_write()
2195 			info->xmit_cnt += c;  in mgsl_write()
2196 			spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_write()
2203  	if (info->xmit_cnt && !tty->stopped && !tty->hw_stopped) {  in mgsl_write()
2204 		spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_write()
2205 		if (!info->tx_active)  in mgsl_write()
2206 		 	usc_start_transmitter(info);  in mgsl_write()
2207 		spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_write()
2212 			__FILE__,__LINE__,info->device_name,ret);  in mgsl_write()
2227 	struct mgsl_struct *info = tty->driver_data;  in mgsl_write_room()  local
2230 	if (mgsl_paranoia_check(info, tty->name, "mgsl_write_room"))  in mgsl_write_room()
2232 	ret = SERIAL_XMIT_SIZE - info->xmit_cnt - 1;  in mgsl_write_room()
2238 			 __FILE__,__LINE__, info->device_name,ret );  in mgsl_write_room()
2240 	if ( info->params.mode == MGSL_MODE_HDLC ||  in mgsl_write_room()
2241 		info->params.mode == MGSL_MODE_RAW ) {  in mgsl_write_room()
2243 		if ( info->tx_active )  in mgsl_write_room()
2262 	struct mgsl_struct *info = tty->driver_data;  in mgsl_chars_in_buffer()  local
2266 			 __FILE__,__LINE__, info->device_name );  in mgsl_chars_in_buffer()
2268 	if (mgsl_paranoia_check(info, tty->name, "mgsl_chars_in_buffer"))  in mgsl_chars_in_buffer()
2273 			 __FILE__,__LINE__, info->device_name,info->xmit_cnt );  in mgsl_chars_in_buffer()
2275 	if ( info->params.mode == MGSL_MODE_HDLC ||  in mgsl_chars_in_buffer()
2276 		info->params.mode == MGSL_MODE_RAW ) {  in mgsl_chars_in_buffer()
2278 		if ( info->tx_active )  in mgsl_chars_in_buffer()
2279 			return info->max_frame_size;  in mgsl_chars_in_buffer()
2284 	return info->xmit_cnt;  in mgsl_chars_in_buffer()
2296 	struct mgsl_struct *info = tty->driver_data;  in mgsl_flush_buffer()  local
2301 			 __FILE__,__LINE__, info->device_name );  in mgsl_flush_buffer()
2303 	if (mgsl_paranoia_check(info, tty->name, "mgsl_flush_buffer"))  in mgsl_flush_buffer()
2306 	spin_lock_irqsave(&info->irq_spinlock,flags);   in mgsl_flush_buffer()
2307 	info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;  in mgsl_flush_buffer()
2308 	del_timer(&info->tx_timer);	  in mgsl_flush_buffer()
2309 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_flush_buffer()
2324 	struct mgsl_struct *info = tty->driver_data;  in mgsl_send_xchar()  local
2329 			 __FILE__,__LINE__, info->device_name, ch );  in mgsl_send_xchar()
2331 	if (mgsl_paranoia_check(info, tty->name, "mgsl_send_xchar"))  in mgsl_send_xchar()
2334 	info->x_char = ch;  in mgsl_send_xchar()
2337 		spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_send_xchar()
2338 		if (!info->tx_enabled)  in mgsl_send_xchar()
2339 		 	usc_start_transmitter(info);  in mgsl_send_xchar()
2340 		spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_send_xchar()
2353 	struct mgsl_struct *info = tty->driver_data;  in mgsl_throttle()  local
2358 			 __FILE__,__LINE__, info->device_name );  in mgsl_throttle()
2360 	if (mgsl_paranoia_check(info, tty->name, "mgsl_throttle"))  in mgsl_throttle()
2367 		spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_throttle()
2368 		info->serial_signals &= ~SerialSignal_RTS;  in mgsl_throttle()
2369 	 	usc_set_serial_signals(info);  in mgsl_throttle()
2370 		spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_throttle()
2383 	struct mgsl_struct *info = tty->driver_data;  in mgsl_unthrottle()  local
2388 			 __FILE__,__LINE__, info->device_name );  in mgsl_unthrottle()
2390 	if (mgsl_paranoia_check(info, tty->name, "mgsl_unthrottle"))  in mgsl_unthrottle()
2394 		if (info->x_char)  in mgsl_unthrottle()
2395 			info->x_char = 0;  in mgsl_unthrottle()
2401 		spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_unthrottle()
2402 		info->serial_signals |= SerialSignal_RTS;  in mgsl_unthrottle()
2403 	 	usc_set_serial_signals(info);  in mgsl_unthrottle()
2404 		spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_unthrottle()
2418 static int mgsl_get_stats(struct mgsl_struct * info, struct mgsl_icount __user *user_icount)  in mgsl_get_stats()  argument
2424 			 __FILE__,__LINE__, info->device_name);  in mgsl_get_stats()
2427 		memset(&info->icount, 0, sizeof(info->icount));  in mgsl_get_stats()
2429 		mutex_lock(&info->port.mutex);  in mgsl_get_stats()
2430 		COPY_TO_USER(err, user_icount, &info->icount, sizeof(struct mgsl_icount));  in mgsl_get_stats()
2431 		mutex_unlock(&info->port.mutex);  in mgsl_get_stats()
2449 static int mgsl_get_params(struct mgsl_struct * info, MGSL_PARAMS __user *user_params)  in mgsl_get_params()  argument
2454 			 __FILE__,__LINE__, info->device_name);  in mgsl_get_params()
2456 	mutex_lock(&info->port.mutex);  in mgsl_get_params()
2457 	COPY_TO_USER(err,user_params, &info->params, sizeof(MGSL_PARAMS));  in mgsl_get_params()
2458 	mutex_unlock(&info->port.mutex);  in mgsl_get_params()
2462 				__FILE__,__LINE__,info->device_name);  in mgsl_get_params()
2481 static int mgsl_set_params(struct mgsl_struct * info, MGSL_PARAMS __user *new_params)  in mgsl_set_params()  argument
2489 			info->device_name );  in mgsl_set_params()
2494 				__FILE__,__LINE__,info->device_name);  in mgsl_set_params()
2498 	mutex_lock(&info->port.mutex);  in mgsl_set_params()
2499 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_set_params()
2500 	memcpy(&info->params,&tmp_params,sizeof(MGSL_PARAMS));  in mgsl_set_params()
2501 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_set_params()
2503  	mgsl_change_params(info);  in mgsl_set_params()
2504 	mutex_unlock(&info->port.mutex);  in mgsl_set_params()
2519 static int mgsl_get_txidle(struct mgsl_struct * info, int __user *idle_mode)  in mgsl_get_txidle()  argument
2525 			 __FILE__,__LINE__, info->device_name, info->idle_mode);  in mgsl_get_txidle()
2527 	COPY_TO_USER(err,idle_mode, &info->idle_mode, sizeof(int));  in mgsl_get_txidle()
2531 				__FILE__,__LINE__,info->device_name);  in mgsl_get_txidle()
2546 static int mgsl_set_txidle(struct mgsl_struct * info, int idle_mode)  in mgsl_set_txidle()  argument
2552 			info->device_name, idle_mode );  in mgsl_set_txidle()
2554 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_set_txidle()
2555 	info->idle_mode = idle_mode;  in mgsl_set_txidle()
2556 	usc_set_txidle( info );  in mgsl_set_txidle()
2557 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_set_txidle()
2573 static int mgsl_txenable(struct mgsl_struct * info, int enable)  in mgsl_txenable()  argument
2579 			info->device_name, enable);  in mgsl_txenable()
2581 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_txenable()
2583 		if ( !info->tx_enabled ) {  in mgsl_txenable()
2585 			usc_start_transmitter(info);  in mgsl_txenable()
2593 			if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE )  in mgsl_txenable()
2594 				usc_loopmode_insert_request( info );  in mgsl_txenable()
2597 		if ( info->tx_enabled )  in mgsl_txenable()
2598 			usc_stop_transmitter(info);  in mgsl_txenable()
2600 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_txenable()
2610 static int mgsl_txabort(struct mgsl_struct * info)  in mgsl_txabort()  argument
2616 			info->device_name);  in mgsl_txabort()
2618 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_txabort()
2619 	if ( info->tx_active && info->params.mode == MGSL_MODE_HDLC )  in mgsl_txabort()
2621 		if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE )  in mgsl_txabort()
2622 			usc_loopmode_cancel_transmit( info );  in mgsl_txabort()
2624 			usc_TCmd(info,TCmd_SendAbort);  in mgsl_txabort()
2626 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_txabort()
2637 static int mgsl_rxenable(struct mgsl_struct * info, int enable)  in mgsl_rxenable()  argument
2643 			info->device_name, enable);  in mgsl_rxenable()
2645 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_rxenable()
2647 		if ( !info->rx_enabled )  in mgsl_rxenable()
2648 			usc_start_receiver(info);  in mgsl_rxenable()
2650 		if ( info->rx_enabled )  in mgsl_rxenable()
2651 			usc_stop_receiver(info);  in mgsl_rxenable()
2653 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_rxenable()
2666 static int mgsl_wait_event(struct mgsl_struct * info, int __user * mask_ptr)  in mgsl_wait_event()  argument
2684 			info->device_name, mask);  in mgsl_wait_event()
2686 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_wait_event()
2689 	usc_get_serial_signals(info);  in mgsl_wait_event()
2690 	s = info->serial_signals;  in mgsl_wait_event()
2697 		spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_wait_event()
2702 	cprev = info->icount;  in mgsl_wait_event()
2703 	oldsigs = info->input_signal_events;  in mgsl_wait_event()
2707 		u16 oldreg = usc_InReg(info,RICR);  in mgsl_wait_event()
2712 			usc_OutReg(info, RICR, newreg);  in mgsl_wait_event()
2716 	add_wait_queue(&info->event_wait_q, &wait);  in mgsl_wait_event()
2718 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_wait_event()
2729 		spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_wait_event()
2730 		cnow = info->icount;  in mgsl_wait_event()
2731 		newsigs = info->input_signal_events;  in mgsl_wait_event()
2733 		spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_wait_event()
2768 	remove_wait_queue(&info->event_wait_q, &wait);  in mgsl_wait_event()
2772 		spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_wait_event()
2773 		if (!waitqueue_active(&info->event_wait_q)) {  in mgsl_wait_event()
2775 			usc_OutReg(info, RICR, usc_InReg(info,RICR) &  in mgsl_wait_event()
2778 		spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_wait_event()
2788 static int modem_input_wait(struct mgsl_struct *info,int arg)  in modem_input_wait()  argument
2796 	spin_lock_irqsave(&info->irq_spinlock,flags);  in modem_input_wait()
2797 	cprev = info->icount;  in modem_input_wait()
2798 	add_wait_queue(&info->status_event_wait_q, &wait);  in modem_input_wait()
2800 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in modem_input_wait()
2810 		spin_lock_irqsave(&info->irq_spinlock,flags);  in modem_input_wait()
2811 		cnow = info->icount;  in modem_input_wait()
2813 		spin_unlock_irqrestore(&info->irq_spinlock,flags);  in modem_input_wait()
2833 	remove_wait_queue(&info->status_event_wait_q, &wait);  in modem_input_wait()
2842 	struct mgsl_struct *info = tty->driver_data;  in tiocmget()  local
2846 	spin_lock_irqsave(&info->irq_spinlock,flags);  in tiocmget()
2847  	usc_get_serial_signals(info);  in tiocmget()
2848 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in tiocmget()
2850 	result = ((info->serial_signals & SerialSignal_RTS) ? TIOCM_RTS:0) +  in tiocmget()
2851 		((info->serial_signals & SerialSignal_DTR) ? TIOCM_DTR:0) +  in tiocmget()
2852 		((info->serial_signals & SerialSignal_DCD) ? TIOCM_CAR:0) +  in tiocmget()
2853 		((info->serial_signals & SerialSignal_RI)  ? TIOCM_RNG:0) +  in tiocmget()
2854 		((info->serial_signals & SerialSignal_DSR) ? TIOCM_DSR:0) +  in tiocmget()
2855 		((info->serial_signals & SerialSignal_CTS) ? TIOCM_CTS:0);  in tiocmget()
2859 			 __FILE__,__LINE__, info->device_name, result );  in tiocmget()
2868 	struct mgsl_struct *info = tty->driver_data;  in tiocmset()  local
2873 			__FILE__,__LINE__,info->device_name, set, clear);  in tiocmset()
2876 		info->serial_signals |= SerialSignal_RTS;  in tiocmset()
2878 		info->serial_signals |= SerialSignal_DTR;  in tiocmset()
2880 		info->serial_signals &= ~SerialSignal_RTS;  in tiocmset()
2882 		info->serial_signals &= ~SerialSignal_DTR;  in tiocmset()
2884 	spin_lock_irqsave(&info->irq_spinlock,flags);  in tiocmset()
2885  	usc_set_serial_signals(info);  in tiocmset()
2886 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in tiocmset()
2899 	struct mgsl_struct * info = tty->driver_data;  in mgsl_break()  local
2904 			 __FILE__,__LINE__, info->device_name, break_state);  in mgsl_break()
2906 	if (mgsl_paranoia_check(info, tty->name, "mgsl_break"))  in mgsl_break()
2909 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_break()
2911 		usc_OutReg(info,IOCR,(u16)(usc_InReg(info,IOCR) | BIT7));  in mgsl_break()
2913 		usc_OutReg(info,IOCR,(u16)(usc_InReg(info,IOCR) & ~BIT7));  in mgsl_break()
2914 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_break()
2929 	struct mgsl_struct * info = tty->driver_data;  in msgl_get_icount()  local
2933 	spin_lock_irqsave(&info->irq_spinlock,flags);  in msgl_get_icount()
2934 	cnow = info->icount;  in msgl_get_icount()
2935 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in msgl_get_icount()
2964 	struct mgsl_struct * info = tty->driver_data;  in mgsl_ioctl()  local
2968 			info->device_name, cmd );  in mgsl_ioctl()
2970 	if (mgsl_paranoia_check(info, tty->name, "mgsl_ioctl"))  in mgsl_ioctl()
2979 	return mgsl_ioctl_common(info, cmd, arg);  in mgsl_ioctl()
2982 static int mgsl_ioctl_common(struct mgsl_struct *info, unsigned int cmd, unsigned long arg)  in mgsl_ioctl_common()  argument
2988 			return mgsl_get_params(info, argp);  in mgsl_ioctl_common()
2990 			return mgsl_set_params(info, argp);  in mgsl_ioctl_common()
2992 			return mgsl_get_txidle(info, argp);  in mgsl_ioctl_common()
2994 			return mgsl_set_txidle(info,(int)arg);  in mgsl_ioctl_common()
2996 			return mgsl_txenable(info,(int)arg);  in mgsl_ioctl_common()
2998 			return mgsl_rxenable(info,(int)arg);  in mgsl_ioctl_common()
3000 			return mgsl_txabort(info);  in mgsl_ioctl_common()
3002 			return mgsl_get_stats(info, argp);  in mgsl_ioctl_common()
3004 			return mgsl_wait_event(info, argp);  in mgsl_ioctl_common()
3006 			return mgsl_loopmode_send_done(info);  in mgsl_ioctl_common()
3011 			return modem_input_wait(info,(int)arg);  in mgsl_ioctl_common()
3032 	struct mgsl_struct *info = tty->driver_data;  in mgsl_set_termios()  local
3039 	mgsl_change_params(info);  in mgsl_set_termios()
3044 		info->serial_signals &= ~(SerialSignal_RTS | SerialSignal_DTR);  in mgsl_set_termios()
3045 		spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_set_termios()
3046 	 	usc_set_serial_signals(info);  in mgsl_set_termios()
3047 		spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_set_termios()
3053 		info->serial_signals |= SerialSignal_DTR;  in mgsl_set_termios()
3056 			info->serial_signals |= SerialSignal_RTS;  in mgsl_set_termios()
3058 		spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_set_termios()
3059 	 	usc_set_serial_signals(info);  in mgsl_set_termios()
3060 		spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_set_termios()
3086 	struct mgsl_struct * info = tty->driver_data;  in mgsl_close()  local
3088 	if (mgsl_paranoia_check(info, tty->name, "mgsl_close"))  in mgsl_close()
3093 			 __FILE__,__LINE__, info->device_name, info->port.count);  in mgsl_close()
3095 	if (tty_port_close_start(&info->port, tty, filp) == 0)  in mgsl_close()
3098 	mutex_lock(&info->port.mutex);  in mgsl_close()
3099  	if (info->port.flags & ASYNC_INITIALIZED)  in mgsl_close()
3100  		mgsl_wait_until_sent(tty, info->timeout);  in mgsl_close()
3103 	shutdown(info);  in mgsl_close()
3104 	mutex_unlock(&info->port.mutex);  in mgsl_close()
3106 	tty_port_close_end(&info->port, tty);	  in mgsl_close()
3107 	info->port.tty = NULL;  in mgsl_close()
3111 			tty->driver->name, info->port.count);  in mgsl_close()
3128 	struct mgsl_struct * info = tty->driver_data;  in mgsl_wait_until_sent()  local
3131 	if (!info )  in mgsl_wait_until_sent()
3136 			 __FILE__,__LINE__, info->device_name );  in mgsl_wait_until_sent()
3138 	if (mgsl_paranoia_check(info, tty->name, "mgsl_wait_until_sent"))  in mgsl_wait_until_sent()
3141 	if (!(info->port.flags & ASYNC_INITIALIZED))  in mgsl_wait_until_sent()
3152 	if ( info->params.data_rate ) {  in mgsl_wait_until_sent()
3153 	       	char_time = info->timeout/(32 * 5);  in mgsl_wait_until_sent()
3162 	if ( info->params.mode == MGSL_MODE_HDLC ||  in mgsl_wait_until_sent()
3163 		info->params.mode == MGSL_MODE_RAW ) {  in mgsl_wait_until_sent()
3164 		while (info->tx_active) {  in mgsl_wait_until_sent()
3172 		while (!(usc_InReg(info,TCSR) & TXSTATUS_ALL_SENT) &&  in mgsl_wait_until_sent()
3173 			info->tx_enabled) {  in mgsl_wait_until_sent()
3185 			 __FILE__,__LINE__, info->device_name );  in mgsl_wait_until_sent()
3199 	struct mgsl_struct * info = tty->driver_data;  in mgsl_hangup()  local
3203 			 __FILE__,__LINE__, info->device_name );  in mgsl_hangup()
3205 	if (mgsl_paranoia_check(info, tty->name, "mgsl_hangup"))  in mgsl_hangup()
3209 	shutdown(info);  in mgsl_hangup()
3211 	info->port.count = 0;	  in mgsl_hangup()
3212 	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;  in mgsl_hangup()
3213 	info->port.tty = NULL;  in mgsl_hangup()
3215 	wake_up_interruptible(&info->port.open_wait);  in mgsl_hangup()
3228 	struct mgsl_struct *info = container_of(port, struct mgsl_struct, port);  in carrier_raised()  local
3230 	spin_lock_irqsave(&info->irq_spinlock, flags);  in carrier_raised()
3231  	usc_get_serial_signals(info);  in carrier_raised()
3232 	spin_unlock_irqrestore(&info->irq_spinlock, flags);  in carrier_raised()
3233 	return (info->serial_signals & SerialSignal_DCD) ? 1 : 0;  in carrier_raised()
3238 	struct mgsl_struct *info = container_of(port, struct mgsl_struct, port);  in dtr_rts()  local
3241 	spin_lock_irqsave(&info->irq_spinlock,flags);  in dtr_rts()
3243 		info->serial_signals |= SerialSignal_RTS | SerialSignal_DTR;  in dtr_rts()
3245 		info->serial_signals &= ~(SerialSignal_RTS | SerialSignal_DTR);  in dtr_rts()
3246  	usc_set_serial_signals(info);  in dtr_rts()
3247 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in dtr_rts()
3265 			   struct mgsl_struct *info)  in block_til_ready()  argument
3272 	struct tty_port *port = &info->port;  in block_til_ready()
3301 	spin_lock_irqsave(&info->irq_spinlock, flags);  in block_til_ready()
3303 	spin_unlock_irqrestore(&info->irq_spinlock, flags);  in block_til_ready()
3318 		dcd = tty_port_carrier_raised(&info->port);  in block_til_ready()
3358 	struct mgsl_struct *info;  in mgsl_install()  local
3369 	info = mgsl_device_list;  in mgsl_install()
3370 	while (info && info->line != line)  in mgsl_install()
3371 		info = info->next_device;  in mgsl_install()
3372 	if (mgsl_paranoia_check(info, tty->name, "mgsl_open"))  in mgsl_install()
3374 	tty->driver_data = info;  in mgsl_install()
3376 	return tty_port_install(&info->port, driver, tty);  in mgsl_install()
3391 	struct mgsl_struct *info = tty->driver_data;  in mgsl_open()  local
3395 	info->port.tty = tty;  in mgsl_open()
3399 			 __FILE__,__LINE__,tty->driver->name, info->port.count);  in mgsl_open()
3402 	if (info->port.flags & ASYNC_CLOSING){  in mgsl_open()
3403 		wait_event_interruptible_tty(tty, info->port.close_wait,  in mgsl_open()
3404 				     !(info->port.flags & ASYNC_CLOSING));  in mgsl_open()
3405 		retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?  in mgsl_open()
3410 	info->port.low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;  in mgsl_open()
3412 	spin_lock_irqsave(&info->netlock, flags);  in mgsl_open()
3413 	if (info->netcount) {  in mgsl_open()
3415 		spin_unlock_irqrestore(&info->netlock, flags);  in mgsl_open()
3418 	info->port.count++;  in mgsl_open()
3419 	spin_unlock_irqrestore(&info->netlock, flags);  in mgsl_open()
3421 	if (info->port.count == 1) {  in mgsl_open()
3423 		retval = startup(info);  in mgsl_open()
3428 	retval = block_til_ready(tty, filp, info);  in mgsl_open()
3432 				 __FILE__,__LINE__, info->device_name, retval);  in mgsl_open()
3438 			 __FILE__,__LINE__, info->device_name);  in mgsl_open()
3444 			info->port.tty = NULL; /* tty layer will release tty struct */  in mgsl_open()
3445 		if(info->port.count)  in mgsl_open()
3446 			info->port.count--;  in mgsl_open()
3457 static inline void line_info(struct seq_file *m, struct mgsl_struct *info)  in line_info()  argument
3462 	if (info->bus_type == MGSL_BUS_TYPE_PCI) {  in line_info()
3464 			info->device_name, info->io_base, info->irq_level,  in line_info()
3465 			info->phys_memory_base, info->phys_lcr_base);  in line_info()
3468 			info->device_name, info->io_base,   in line_info()
3469 			info->irq_level, info->dma_level);  in line_info()
3473 	spin_lock_irqsave(&info->irq_spinlock,flags);  in line_info()
3474  	usc_get_serial_signals(info);  in line_info()
3475 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in line_info()
3479 	if (info->serial_signals & SerialSignal_RTS)  in line_info()
3481 	if (info->serial_signals & SerialSignal_CTS)  in line_info()
3483 	if (info->serial_signals & SerialSignal_DTR)  in line_info()
3485 	if (info->serial_signals & SerialSignal_DSR)  in line_info()
3487 	if (info->serial_signals & SerialSignal_DCD)  in line_info()
3489 	if (info->serial_signals & SerialSignal_RI)  in line_info()
3492 	if (info->params.mode == MGSL_MODE_HDLC ||  in line_info()
3493 	    info->params.mode == MGSL_MODE_RAW ) {  in line_info()
3495 			      info->icount.txok, info->icount.rxok);  in line_info()
3496 		if (info->icount.txunder)  in line_info()
3497 			seq_printf(m, " txunder:%d", info->icount.txunder);  in line_info()
3498 		if (info->icount.txabort)  in line_info()
3499 			seq_printf(m, " txabort:%d", info->icount.txabort);  in line_info()
3500 		if (info->icount.rxshort)  in line_info()
3501 			seq_printf(m, " rxshort:%d", info->icount.rxshort);  in line_info()
3502 		if (info->icount.rxlong)  in line_info()
3503 			seq_printf(m, " rxlong:%d", info->icount.rxlong);  in line_info()
3504 		if (info->icount.rxover)  in line_info()
3505 			seq_printf(m, " rxover:%d", info->icount.rxover);  in line_info()
3506 		if (info->icount.rxcrc)  in line_info()
3507 			seq_printf(m, " rxcrc:%d", info->icount.rxcrc);  in line_info()
3510 			      info->icount.tx, info->icount.rx);  in line_info()
3511 		if (info->icount.frame)  in line_info()
3512 			seq_printf(m, " fe:%d", info->icount.frame);  in line_info()
3513 		if (info->icount.parity)  in line_info()
3514 			seq_printf(m, " pe:%d", info->icount.parity);  in line_info()
3515 		if (info->icount.brk)  in line_info()
3516 			seq_printf(m, " brk:%d", info->icount.brk);  in line_info()
3517 		if (info->icount.overrun)  in line_info()
3518 			seq_printf(m, " oe:%d", info->icount.overrun);  in line_info()
3525 	 info->tx_active,info->bh_requested,info->bh_running,  in line_info()
3526 	 info->pending_bh);  in line_info()
3528 	spin_lock_irqsave(&info->irq_spinlock,flags);  in line_info()
3530 	u16 Tcsr = usc_InReg( info, TCSR );  in line_info()
3531 	u16 Tdmr = usc_InDmaReg( info, TDMR );  in line_info()
3532 	u16 Ticr = usc_InReg( info, TICR );  in line_info()
3533 	u16 Rscr = usc_InReg( info, RCSR );  in line_info()
3534 	u16 Rdmr = usc_InDmaReg( info, RDMR );  in line_info()
3535 	u16 Ricr = usc_InReg( info, RICR );  in line_info()
3536 	u16 Icr = usc_InReg( info, ICR );  in line_info()
3537 	u16 Dccr = usc_InReg( info, DCCR );  in line_info()
3538 	u16 Tmr = usc_InReg( info, TMR );  in line_info()
3539 	u16 Tccr = usc_InReg( info, TCCR );  in line_info()
3540 	u16 Ccar = inw( info->io_base + CCAR );  in line_info()
3545 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in line_info()
3551 	struct mgsl_struct *info;  in mgsl_proc_show()  local
3555 	info = mgsl_device_list;  in mgsl_proc_show()
3556 	while( info ) {  in mgsl_proc_show()
3557 		line_info(m, info);  in mgsl_proc_show()
3558 		info = info->next_device;  in mgsl_proc_show()
3584 static int mgsl_allocate_dma_buffers(struct mgsl_struct *info)  in mgsl_allocate_dma_buffers()  argument
3588 	info->last_mem_alloc = 0;  in mgsl_allocate_dma_buffers()
3595 	BuffersPerFrame = (unsigned short)(info->max_frame_size/DMABUFFERSIZE);  in mgsl_allocate_dma_buffers()
3596 	if ( info->max_frame_size % DMABUFFERSIZE )  in mgsl_allocate_dma_buffers()
3599 	if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {  in mgsl_allocate_dma_buffers()
3622 		info->tx_buffer_count = info->num_tx_dma_buffers * BuffersPerFrame;  in mgsl_allocate_dma_buffers()
3623 		info->rx_buffer_count = 62 - info->tx_buffer_count;  in mgsl_allocate_dma_buffers()
3635 		info->tx_buffer_count = info->num_tx_dma_buffers * BuffersPerFrame;  in mgsl_allocate_dma_buffers()
3636 		info->rx_buffer_count = (BuffersPerFrame * MAXRXFRAMES) + 6;  in mgsl_allocate_dma_buffers()
3643 		if ( (info->tx_buffer_count + info->rx_buffer_count) > 62 )  in mgsl_allocate_dma_buffers()
3644 			info->rx_buffer_count = 62 - info->tx_buffer_count;  in mgsl_allocate_dma_buffers()
3650 			__FILE__,__LINE__, info->tx_buffer_count,info->rx_buffer_count);  in mgsl_allocate_dma_buffers()
3652 	if ( mgsl_alloc_buffer_list_memory( info ) < 0 ||  in mgsl_allocate_dma_buffers()
3653 		  mgsl_alloc_frame_memory(info, info->rx_buffer_list, info->rx_buffer_count) < 0 ||   in mgsl_allocate_dma_buffers()
3654 		  mgsl_alloc_frame_memory(info, info->tx_buffer_list, info->tx_buffer_count) < 0 ||   in mgsl_allocate_dma_buffers()
3655 		  mgsl_alloc_intermediate_rxbuffer_memory(info) < 0  ||  in mgsl_allocate_dma_buffers()
3656 		  mgsl_alloc_intermediate_txbuffer_memory(info) < 0 ) {  in mgsl_allocate_dma_buffers()
3661 	mgsl_reset_rx_dma_buffers( info );  in mgsl_allocate_dma_buffers()
3662   	mgsl_reset_tx_dma_buffers( info );  in mgsl_allocate_dma_buffers()
3691 static int mgsl_alloc_buffer_list_memory( struct mgsl_struct *info )  in mgsl_alloc_buffer_list_memory()  argument
3695 	if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {  in mgsl_alloc_buffer_list_memory()
3697 		info->buffer_list = info->memory_base + info->last_mem_alloc;  in mgsl_alloc_buffer_list_memory()
3698 		info->buffer_list_phys = info->last_mem_alloc;  in mgsl_alloc_buffer_list_memory()
3699 		info->last_mem_alloc += BUFFERLISTSIZE;  in mgsl_alloc_buffer_list_memory()
3707 …info->buffer_list = dma_alloc_coherent(NULL, BUFFERLISTSIZE, &info->buffer_list_dma_addr, GFP_KERN…  in mgsl_alloc_buffer_list_memory()
3708 		if (info->buffer_list == NULL)  in mgsl_alloc_buffer_list_memory()
3710 		info->buffer_list_phys = (u32)(info->buffer_list_dma_addr);  in mgsl_alloc_buffer_list_memory()
3715 	memset( info->buffer_list, 0, BUFFERLISTSIZE );  in mgsl_alloc_buffer_list_memory()
3720 	info->rx_buffer_list = (DMABUFFERENTRY *)info->buffer_list;  in mgsl_alloc_buffer_list_memory()
3721 	info->tx_buffer_list = (DMABUFFERENTRY *)info->buffer_list;  in mgsl_alloc_buffer_list_memory()
3722 	info->tx_buffer_list += info->rx_buffer_count;  in mgsl_alloc_buffer_list_memory()
3733 	for ( i = 0; i < info->rx_buffer_count; i++ ) {  in mgsl_alloc_buffer_list_memory()
3735 		info->rx_buffer_list[i].phys_entry =  in mgsl_alloc_buffer_list_memory()
3736 			info->buffer_list_phys + (i * sizeof(DMABUFFERENTRY));  in mgsl_alloc_buffer_list_memory()
3741 		info->rx_buffer_list[i].link = info->buffer_list_phys;  in mgsl_alloc_buffer_list_memory()
3743 		if ( i < info->rx_buffer_count - 1 )  in mgsl_alloc_buffer_list_memory()
3744 			info->rx_buffer_list[i].link += (i + 1) * sizeof(DMABUFFERENTRY);  in mgsl_alloc_buffer_list_memory()
3747 	for ( i = 0; i < info->tx_buffer_count; i++ ) {  in mgsl_alloc_buffer_list_memory()
3749 		info->tx_buffer_list[i].phys_entry = info->buffer_list_phys +  in mgsl_alloc_buffer_list_memory()
3750 			((info->rx_buffer_count + i) * sizeof(DMABUFFERENTRY));  in mgsl_alloc_buffer_list_memory()
3755 		info->tx_buffer_list[i].link = info->buffer_list_phys +  in mgsl_alloc_buffer_list_memory()
3756 			info->rx_buffer_count * sizeof(DMABUFFERENTRY);  in mgsl_alloc_buffer_list_memory()
3758 		if ( i < info->tx_buffer_count - 1 )  in mgsl_alloc_buffer_list_memory()
3759 			info->tx_buffer_list[i].link += (i + 1) * sizeof(DMABUFFERENTRY);  in mgsl_alloc_buffer_list_memory()
3775 static void mgsl_free_buffer_list_memory( struct mgsl_struct *info )  in mgsl_free_buffer_list_memory()  argument
3777 	if (info->buffer_list && info->bus_type != MGSL_BUS_TYPE_PCI)  in mgsl_free_buffer_list_memory()
3778 		dma_free_coherent(NULL, BUFFERLISTSIZE, info->buffer_list, info->buffer_list_dma_addr);  in mgsl_free_buffer_list_memory()
3780 	info->buffer_list = NULL;  in mgsl_free_buffer_list_memory()
3781 	info->rx_buffer_list = NULL;  in mgsl_free_buffer_list_memory()
3782 	info->tx_buffer_list = NULL;  in mgsl_free_buffer_list_memory()
3802 static int mgsl_alloc_frame_memory(struct mgsl_struct *info,DMABUFFERENTRY *BufferList,int Bufferco…  in mgsl_alloc_frame_memory()  argument
3810 		if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {  in mgsl_alloc_frame_memory()
3812 			BufferList[i].virt_addr = info->memory_base + info->last_mem_alloc;  in mgsl_alloc_frame_memory()
3813 			phys_addr = info->last_mem_alloc;  in mgsl_alloc_frame_memory()
3814 			info->last_mem_alloc += DMABUFFERSIZE;  in mgsl_alloc_frame_memory()
3843 static void mgsl_free_frame_memory(struct mgsl_struct *info, DMABUFFERENTRY *BufferList, int Buffer…  in mgsl_free_frame_memory()  argument
3850 				if ( info->bus_type != MGSL_BUS_TYPE_PCI )  in mgsl_free_frame_memory()
3866 static void mgsl_free_dma_buffers( struct mgsl_struct *info )  in mgsl_free_dma_buffers()  argument
3868 	mgsl_free_frame_memory( info, info->rx_buffer_list, info->rx_buffer_count );  in mgsl_free_dma_buffers()
3869 	mgsl_free_frame_memory( info, info->tx_buffer_list, info->tx_buffer_count );  in mgsl_free_dma_buffers()
3870 	mgsl_free_buffer_list_memory( info );  in mgsl_free_dma_buffers()
3887 static int mgsl_alloc_intermediate_rxbuffer_memory(struct mgsl_struct *info)  in mgsl_alloc_intermediate_rxbuffer_memory()  argument
3889 	info->intermediate_rxbuffer = kmalloc(info->max_frame_size, GFP_KERNEL | GFP_DMA);  in mgsl_alloc_intermediate_rxbuffer_memory()
3890 	if ( info->intermediate_rxbuffer == NULL )  in mgsl_alloc_intermediate_rxbuffer_memory()
3893 	info->flag_buf = kzalloc(info->max_frame_size, GFP_KERNEL);  in mgsl_alloc_intermediate_rxbuffer_memory()
3894 	if (!info->flag_buf) {  in mgsl_alloc_intermediate_rxbuffer_memory()
3895 		kfree(info->intermediate_rxbuffer);  in mgsl_alloc_intermediate_rxbuffer_memory()
3896 		info->intermediate_rxbuffer = NULL;  in mgsl_alloc_intermediate_rxbuffer_memory()
3913 static void mgsl_free_intermediate_rxbuffer_memory(struct mgsl_struct *info)  in mgsl_free_intermediate_rxbuffer_memory()  argument
3915 	kfree(info->intermediate_rxbuffer);  in mgsl_free_intermediate_rxbuffer_memory()
3916 	info->intermediate_rxbuffer = NULL;  in mgsl_free_intermediate_rxbuffer_memory()
3917 	kfree(info->flag_buf);  in mgsl_free_intermediate_rxbuffer_memory()
3918 	info->flag_buf = NULL;  in mgsl_free_intermediate_rxbuffer_memory()
3935 static int mgsl_alloc_intermediate_txbuffer_memory(struct mgsl_struct *info)  in mgsl_alloc_intermediate_txbuffer_memory()  argument
3941 				info->device_name, __FILE__,__LINE__,info->num_tx_holding_buffers);  in mgsl_alloc_intermediate_txbuffer_memory()
3943 	memset(info->tx_holding_buffers,0,sizeof(info->tx_holding_buffers));  in mgsl_alloc_intermediate_txbuffer_memory()
3945 	for ( i=0; i<info->num_tx_holding_buffers; ++i) {  in mgsl_alloc_intermediate_txbuffer_memory()
3946 		info->tx_holding_buffers[i].buffer =  in mgsl_alloc_intermediate_txbuffer_memory()
3947 			kmalloc(info->max_frame_size, GFP_KERNEL);  in mgsl_alloc_intermediate_txbuffer_memory()
3948 		if (info->tx_holding_buffers[i].buffer == NULL) {  in mgsl_alloc_intermediate_txbuffer_memory()
3950 				kfree(info->tx_holding_buffers[i].buffer);  in mgsl_alloc_intermediate_txbuffer_memory()
3951 				info->tx_holding_buffers[i].buffer = NULL;  in mgsl_alloc_intermediate_txbuffer_memory()
3971 static void mgsl_free_intermediate_txbuffer_memory(struct mgsl_struct *info)  in mgsl_free_intermediate_txbuffer_memory()  argument
3975 	for ( i=0; i<info->num_tx_holding_buffers; ++i ) {  in mgsl_free_intermediate_txbuffer_memory()
3976 		kfree(info->tx_holding_buffers[i].buffer);  in mgsl_free_intermediate_txbuffer_memory()
3977 		info->tx_holding_buffers[i].buffer = NULL;  in mgsl_free_intermediate_txbuffer_memory()
3980 	info->get_tx_holding_index = 0;  in mgsl_free_intermediate_txbuffer_memory()
3981 	info->put_tx_holding_index = 0;  in mgsl_free_intermediate_txbuffer_memory()
3982 	info->tx_holding_count = 0;  in mgsl_free_intermediate_txbuffer_memory()
4001 static bool load_next_tx_holding_buffer(struct mgsl_struct *info)  in load_next_tx_holding_buffer()  argument
4005 	if ( info->tx_holding_count ) {  in load_next_tx_holding_buffer()
4010 			&info->tx_holding_buffers[info->get_tx_holding_index];  in load_next_tx_holding_buffer()
4011 		int num_free = num_free_tx_dma_buffers(info);  in load_next_tx_holding_buffer()
4017 			info->xmit_cnt = ptx->buffer_size;  in load_next_tx_holding_buffer()
4018 			mgsl_load_tx_dma_buffer(info,ptx->buffer,ptx->buffer_size);  in load_next_tx_holding_buffer()
4020 			--info->tx_holding_count;  in load_next_tx_holding_buffer()
4021 			if ( ++info->get_tx_holding_index >= info->num_tx_holding_buffers)  in load_next_tx_holding_buffer()
4022 				info->get_tx_holding_index=0;  in load_next_tx_holding_buffer()
4025 			mod_timer(&info->tx_timer, jiffies + msecs_to_jiffies(5000));  in load_next_tx_holding_buffer()
4047 static int save_tx_buffer_request(struct mgsl_struct *info,const char *Buffer, unsigned int BufferS…  in save_tx_buffer_request()  argument
4051 	if ( info->tx_holding_count >= info->num_tx_holding_buffers ) {  in save_tx_buffer_request()
4055 	ptx = &info->tx_holding_buffers[info->put_tx_holding_index];  in save_tx_buffer_request()
4059 	++info->tx_holding_count;  in save_tx_buffer_request()
4060 	if ( ++info->put_tx_holding_index >= info->num_tx_holding_buffers)  in save_tx_buffer_request()
4061 		info->put_tx_holding_index=0;  in save_tx_buffer_request()
4066 static int mgsl_claim_resources(struct mgsl_struct *info)  in mgsl_claim_resources()  argument
4068 	if (request_region(info->io_base,info->io_addr_size,"synclink") == NULL) {  in mgsl_claim_resources()
4070 			__FILE__,__LINE__,info->device_name, info->io_base);  in mgsl_claim_resources()
4073 	info->io_addr_requested = true;  in mgsl_claim_resources()
4075 	if ( request_irq(info->irq_level,mgsl_interrupt,info->irq_flags,  in mgsl_claim_resources()
4076 		info->device_name, info ) < 0 ) {  in mgsl_claim_resources()
4078 			__FILE__,__LINE__,info->device_name, info->irq_level );  in mgsl_claim_resources()
4081 	info->irq_requested = true;  in mgsl_claim_resources()
4083 	if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {  in mgsl_claim_resources()
4084 		if (request_mem_region(info->phys_memory_base,0x40000,"synclink") == NULL) {  in mgsl_claim_resources()
4086 				__FILE__,__LINE__,info->device_name, info->phys_memory_base);  in mgsl_claim_resources()
4089 		info->shared_mem_requested = true;  in mgsl_claim_resources()
4090 		if (request_mem_region(info->phys_lcr_base + info->lcr_offset,128,"synclink") == NULL) {  in mgsl_claim_resources()
4092 				__FILE__,__LINE__,info->device_name, info->phys_lcr_base + info->lcr_offset);  in mgsl_claim_resources()
4095 		info->lcr_mem_requested = true;  in mgsl_claim_resources()
4097 		info->memory_base = ioremap_nocache(info->phys_memory_base,  in mgsl_claim_resources()
4099 		if (!info->memory_base) {  in mgsl_claim_resources()
4101 				__FILE__,__LINE__,info->device_name, info->phys_memory_base );  in mgsl_claim_resources()
4105 		if ( !mgsl_memory_test(info) ) {  in mgsl_claim_resources()
4107 				__FILE__,__LINE__,info->device_name, info->phys_memory_base );  in mgsl_claim_resources()
4111 		info->lcr_base = ioremap_nocache(info->phys_lcr_base,  in mgsl_claim_resources()
4113 		if (!info->lcr_base) {  in mgsl_claim_resources()
4115 				__FILE__,__LINE__,info->device_name, info->phys_lcr_base );  in mgsl_claim_resources()
4118 		info->lcr_base += info->lcr_offset;  in mgsl_claim_resources()
4123 		if (request_dma(info->dma_level,info->device_name) < 0){  in mgsl_claim_resources()
4125 				__FILE__,__LINE__,info->device_name, info->dma_level );  in mgsl_claim_resources()
4126 			mgsl_release_resources( info );  in mgsl_claim_resources()
4129 		info->dma_requested = true;  in mgsl_claim_resources()
4132 		set_dma_mode(info->dma_level,DMA_MODE_CASCADE);  in mgsl_claim_resources()
4133 		enable_dma(info->dma_level);  in mgsl_claim_resources()
4136 	if ( mgsl_allocate_dma_buffers(info) < 0 ) {  in mgsl_claim_resources()
4138 			__FILE__,__LINE__,info->device_name, info->dma_level );  in mgsl_claim_resources()
4144 	mgsl_release_resources(info);  in mgsl_claim_resources()
4149 static void mgsl_release_resources(struct mgsl_struct *info)  in mgsl_release_resources()  argument
4153 			__FILE__,__LINE__,info->device_name );  in mgsl_release_resources()
4155 	if ( info->irq_requested ) {  in mgsl_release_resources()
4156 		free_irq(info->irq_level, info);  in mgsl_release_resources()
4157 		info->irq_requested = false;  in mgsl_release_resources()
4159 	if ( info->dma_requested ) {  in mgsl_release_resources()
4160 		disable_dma(info->dma_level);  in mgsl_release_resources()
4161 		free_dma(info->dma_level);  in mgsl_release_resources()
4162 		info->dma_requested = false;  in mgsl_release_resources()
4164 	mgsl_free_dma_buffers(info);  in mgsl_release_resources()
4165 	mgsl_free_intermediate_rxbuffer_memory(info);  in mgsl_release_resources()
4166      	mgsl_free_intermediate_txbuffer_memory(info);  in mgsl_release_resources()
4168 	if ( info->io_addr_requested ) {  in mgsl_release_resources()
4169 		release_region(info->io_base,info->io_addr_size);  in mgsl_release_resources()
4170 		info->io_addr_requested = false;  in mgsl_release_resources()
4172 	if ( info->shared_mem_requested ) {  in mgsl_release_resources()
4173 		release_mem_region(info->phys_memory_base,0x40000);  in mgsl_release_resources()
4174 		info->shared_mem_requested = false;  in mgsl_release_resources()
4176 	if ( info->lcr_mem_requested ) {  in mgsl_release_resources()
4177 		release_mem_region(info->phys_lcr_base + info->lcr_offset,128);  in mgsl_release_resources()
4178 		info->lcr_mem_requested = false;  in mgsl_release_resources()
4180 	if (info->memory_base){  in mgsl_release_resources()
4181 		iounmap(info->memory_base);  in mgsl_release_resources()
4182 		info->memory_base = NULL;  in mgsl_release_resources()
4184 	if (info->lcr_base){  in mgsl_release_resources()
4185 		iounmap(info->lcr_base - info->lcr_offset);  in mgsl_release_resources()
4186 		info->lcr_base = NULL;  in mgsl_release_resources()
4191 			__FILE__,__LINE__,info->device_name );  in mgsl_release_resources()
4203 static void mgsl_add_device( struct mgsl_struct *info )  in mgsl_add_device()  argument
4205 	info->next_device = NULL;  in mgsl_add_device()
4206 	info->line = mgsl_device_count;  in mgsl_add_device()
4207 	sprintf(info->device_name,"ttySL%d",info->line);  in mgsl_add_device()
4209 	if (info->line < MAX_TOTAL_DEVICES) {  in mgsl_add_device()
4210 		if (maxframe[info->line])  in mgsl_add_device()
4211 			info->max_frame_size = maxframe[info->line];  in mgsl_add_device()
4213 		if (txdmabufs[info->line]) {  in mgsl_add_device()
4214 			info->num_tx_dma_buffers = txdmabufs[info->line];  in mgsl_add_device()
4215 			if (info->num_tx_dma_buffers < 1)  in mgsl_add_device()
4216 				info->num_tx_dma_buffers = 1;  in mgsl_add_device()
4219 		if (txholdbufs[info->line]) {  in mgsl_add_device()
4220 			info->num_tx_holding_buffers = txholdbufs[info->line];  in mgsl_add_device()
4221 			if (info->num_tx_holding_buffers < 1)  in mgsl_add_device()
4222 				info->num_tx_holding_buffers = 1;  in mgsl_add_device()
4223 			else if (info->num_tx_holding_buffers > MAX_TX_HOLDING_BUFFERS)  in mgsl_add_device()
4224 				info->num_tx_holding_buffers = MAX_TX_HOLDING_BUFFERS;  in mgsl_add_device()
4231 		mgsl_device_list = info;  in mgsl_add_device()
4236 		current_dev->next_device = info;  in mgsl_add_device()
4239 	if ( info->max_frame_size < 4096 )  in mgsl_add_device()
4240 		info->max_frame_size = 4096;  in mgsl_add_device()
4241 	else if ( info->max_frame_size > 65535 )  in mgsl_add_device()
4242 		info->max_frame_size = 65535;  in mgsl_add_device()
4244 	if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {  in mgsl_add_device()
4246 			info->hw_version + 1, info->device_name, info->io_base, info->irq_level,  in mgsl_add_device()
4247 			info->phys_memory_base, info->phys_lcr_base,  in mgsl_add_device()
4248 		     	info->max_frame_size );  in mgsl_add_device()
4251 			info->device_name, info->io_base, info->irq_level, info->dma_level,  in mgsl_add_device()
4252 		     	info->max_frame_size );  in mgsl_add_device()
4256 	hdlcdev_init(info);  in mgsl_add_device()
4276 	struct mgsl_struct *info;  in mgsl_allocate_device()  local
4278 	info = kzalloc(sizeof(struct mgsl_struct),  in mgsl_allocate_device()
4281 	if (!info) {  in mgsl_allocate_device()
4284 		tty_port_init(&info->port);  in mgsl_allocate_device()
4285 		info->port.ops = &mgsl_port_ops;  in mgsl_allocate_device()
4286 		info->magic = MGSL_MAGIC;  in mgsl_allocate_device()
4287 		INIT_WORK(&info->task, mgsl_bh_handler);  in mgsl_allocate_device()
4288 		info->max_frame_size = 4096;  in mgsl_allocate_device()
4289 		info->port.close_delay = 5*HZ/10;  in mgsl_allocate_device()
4290 		info->port.closing_wait = 30*HZ;  in mgsl_allocate_device()
4291 		init_waitqueue_head(&info->status_event_wait_q);  in mgsl_allocate_device()
4292 		init_waitqueue_head(&info->event_wait_q);  in mgsl_allocate_device()
4293 		spin_lock_init(&info->irq_spinlock);  in mgsl_allocate_device()
4294 		spin_lock_init(&info->netlock);  in mgsl_allocate_device()
4295 		memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS));  in mgsl_allocate_device()
4296 		info->idle_mode = HDLC_TXIDLE_FLAGS;  in mgsl_allocate_device()
4297 		info->num_tx_dma_buffers = 1;  in mgsl_allocate_device()
4298 		info->num_tx_holding_buffers = 0;  in mgsl_allocate_device()
4301 	return info;  in mgsl_allocate_device()
4373 	struct mgsl_struct *info;  in mgsl_enum_isa_devices()  local
4383 		info = mgsl_allocate_device();  in mgsl_enum_isa_devices()
4384 		if ( !info ) {  in mgsl_enum_isa_devices()
4392 		info->io_base = (unsigned int)io[i];  in mgsl_enum_isa_devices()
4393 		info->irq_level = (unsigned int)irq[i];  in mgsl_enum_isa_devices()
4394 		info->irq_level = irq_canonicalize(info->irq_level);  in mgsl_enum_isa_devices()
4395 		info->dma_level = (unsigned int)dma[i];  in mgsl_enum_isa_devices()
4396 		info->bus_type = MGSL_BUS_TYPE_ISA;  in mgsl_enum_isa_devices()
4397 		info->io_addr_size = 16;  in mgsl_enum_isa_devices()
4398 		info->irq_flags = 0;  in mgsl_enum_isa_devices()
4400 		mgsl_add_device( info );  in mgsl_enum_isa_devices()
4407 	struct mgsl_struct *info;  in synclink_cleanup()  local
4419 	info = mgsl_device_list;  in synclink_cleanup()
4420 	while(info) {  in synclink_cleanup()
4422 		hdlcdev_exit(info);  in synclink_cleanup()
4424 		mgsl_release_resources(info);  in synclink_cleanup()
4425 		tmp = info;  in synclink_cleanup()
4426 		info = info->next_device;  in synclink_cleanup()
4491 static void usc_RTCmd( struct mgsl_struct *info, u16 Cmd )  in usc_RTCmd()  argument
4496 	outw( Cmd + info->loopback_bits, info->io_base + CCAR );  in usc_RTCmd()
4499 	if ( info->bus_type == MGSL_BUS_TYPE_PCI )  in usc_RTCmd()
4500 		inw( info->io_base + CCAR );  in usc_RTCmd()
4518 static void usc_DmaCmd( struct mgsl_struct *info, u16 Cmd )  in usc_DmaCmd()  argument
4521 	outw( Cmd + info->mbre_bit, info->io_base );  in usc_DmaCmd()
4524 	if ( info->bus_type == MGSL_BUS_TYPE_PCI )  in usc_DmaCmd()
4525 		inw( info->io_base );  in usc_DmaCmd()
4545 static void usc_OutDmaReg( struct mgsl_struct *info, u16 RegAddr, u16 RegValue )  in usc_OutDmaReg()  argument
4550 	outw( RegAddr + info->mbre_bit, info->io_base );  in usc_OutDmaReg()
4551 	outw( RegValue, info->io_base );  in usc_OutDmaReg()
4554 	if ( info->bus_type == MGSL_BUS_TYPE_PCI )  in usc_OutDmaReg()
4555 		inw( info->io_base );  in usc_OutDmaReg()
4574 static u16 usc_InDmaReg( struct mgsl_struct *info, u16 RegAddr )  in usc_InDmaReg()  argument
4579 	outw( RegAddr + info->mbre_bit, info->io_base );  in usc_InDmaReg()
4580 	return inw( info->io_base );  in usc_InDmaReg()
4601 static void usc_OutReg( struct mgsl_struct *info, u16 RegAddr, u16 RegValue )  in usc_OutReg()  argument
4603 	outw( RegAddr + info->loopback_bits, info->io_base + CCAR );  in usc_OutReg()
4604 	outw( RegValue, info->io_base + CCAR );  in usc_OutReg()
4607 	if ( info->bus_type == MGSL_BUS_TYPE_PCI )  in usc_OutReg()
4608 		inw( info->io_base + CCAR );  in usc_OutReg()
4626 static u16 usc_InReg( struct mgsl_struct *info, u16 RegAddr )  in usc_InReg()  argument
4628 	outw( RegAddr + info->loopback_bits, info->io_base + CCAR );  in usc_InReg()
4629 	return inw( info->io_base + CCAR );  in usc_InReg()
4640 static void usc_set_sdlc_mode( struct mgsl_struct *info )  in usc_set_sdlc_mode()  argument
4654 	usc_OutReg(info,TMCR,0x1f);  in usc_set_sdlc_mode()
4655 	RegValue=usc_InReg(info,TMDR);  in usc_set_sdlc_mode()
4658  	if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE )  in usc_set_sdlc_mode()
4692 		if (info->params.mode == MGSL_MODE_RAW) {  in usc_set_sdlc_mode()
4695 			usc_OutReg( info, IOCR,		/* Set IOCR DCD is RxSync Detect Input */  in usc_set_sdlc_mode()
4696 				(unsigned short)((usc_InReg(info, IOCR) & ~(BIT13|BIT12)) | BIT12));  in usc_set_sdlc_mode()
4716 		if ( info->params.flags & HDLC_FLAG_UNDERRUN_ABORT15 )  in usc_set_sdlc_mode()
4718 		else if ( info->params.flags & HDLC_FLAG_UNDERRUN_FLAG )  in usc_set_sdlc_mode()
4720 		else if ( info->params.flags & HDLC_FLAG_UNDERRUN_CRC )  in usc_set_sdlc_mode()
4724 		if ( info->params.preamble != HDLC_PREAMBLE_PATTERN_NONE )  in usc_set_sdlc_mode()
4728 	if ( info->params.mode == MGSL_MODE_HDLC &&  in usc_set_sdlc_mode()
4729 		(info->params.flags & HDLC_FLAG_SHARE_ZERO) )  in usc_set_sdlc_mode()
4732 	if ( info->params.addr_filter != 0xff )  in usc_set_sdlc_mode()
4735 		usc_OutReg( info, RSR, info->params.addr_filter );  in usc_set_sdlc_mode()
4739 	usc_OutReg( info, CMR, RegValue );  in usc_set_sdlc_mode()
4740 	info->cmr_value = RegValue;  in usc_set_sdlc_mode()
4759 	switch ( info->params.encoding ) {  in usc_set_sdlc_mode()
4769 	if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_16_CCITT )  in usc_set_sdlc_mode()
4771 	else if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_32_CCITT )  in usc_set_sdlc_mode()
4774 	usc_OutReg( info, RMR, RegValue );  in usc_set_sdlc_mode()
4783 	usc_OutReg( info, RCLR, RCLRVALUE );  in usc_set_sdlc_mode()
4785 	usc_RCmd( info, RCmd_SelectRicrdma_level );  in usc_set_sdlc_mode()
4805 	RegValue = usc_InReg( info, RICR ) & 0xc0;  in usc_set_sdlc_mode()
4807 	if ( info->bus_type == MGSL_BUS_TYPE_PCI )  in usc_set_sdlc_mode()
4808 		usc_OutReg( info, RICR, (u16)(0x030a | RegValue) );  in usc_set_sdlc_mode()
4810 		usc_OutReg( info, RICR, (u16)(0x140a | RegValue) );  in usc_set_sdlc_mode()
4814 	usc_UnlatchRxstatusBits( info, RXSTATUS_ALL );  in usc_set_sdlc_mode()
4815 	usc_ClearIrqPendingBits( info, RECEIVE_STATUS );  in usc_set_sdlc_mode()
4834 	switch ( info->params.encoding ) {  in usc_set_sdlc_mode()
4844 	if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_16_CCITT )  in usc_set_sdlc_mode()
4846 	else if ( (info->params.crc_type & HDLC_CRC_MASK) == HDLC_CRC_32_CCITT )  in usc_set_sdlc_mode()
4849 	usc_OutReg( info, TMR, RegValue );  in usc_set_sdlc_mode()
4851 	usc_set_txidle( info );  in usc_set_sdlc_mode()
4854 	usc_TCmd( info, TCmd_SelectTicrdma_level );  in usc_set_sdlc_mode()
4871 	if ( info->bus_type == MGSL_BUS_TYPE_PCI )  in usc_set_sdlc_mode()
4872 		usc_OutReg( info, TICR, 0x0736 );  in usc_set_sdlc_mode()
4874 		usc_OutReg( info, TICR, 0x1436 );  in usc_set_sdlc_mode()
4876 	usc_UnlatchTxstatusBits( info, TXSTATUS_ALL );  in usc_set_sdlc_mode()
4877 	usc_ClearIrqPendingBits( info, TRANSMIT_STATUS );  in usc_set_sdlc_mode()
4896 	info->tcsr_value = 0;  in usc_set_sdlc_mode()
4899 		info->tcsr_value |= TCSR_UNDERWAIT;  in usc_set_sdlc_mode()
4901 	usc_OutReg( info, TCSR, info->tcsr_value );  in usc_set_sdlc_mode()
4918 	if ( info->params.flags & HDLC_FLAG_RXC_DPLL )  in usc_set_sdlc_mode()
4920 	else if ( info->params.flags & HDLC_FLAG_RXC_BRG )  in usc_set_sdlc_mode()
4922  	else if ( info->params.flags & HDLC_FLAG_RXC_TXCPIN)  in usc_set_sdlc_mode()
4927 	if ( info->params.flags & HDLC_FLAG_TXC_DPLL )  in usc_set_sdlc_mode()
4929 	else if ( info->params.flags & HDLC_FLAG_TXC_BRG )  in usc_set_sdlc_mode()
4931  	else if ( info->params.flags & HDLC_FLAG_TXC_RXCPIN)  in usc_set_sdlc_mode()
4936 	usc_OutReg( info, CMCR, RegValue );  in usc_set_sdlc_mode()
4956 	if ( info->params.flags & (HDLC_FLAG_RXC_DPLL | HDLC_FLAG_TXC_DPLL) ) {  in usc_set_sdlc_mode()
4964 		if ( info->bus_type == MGSL_BUS_TYPE_PCI )  in usc_set_sdlc_mode()
4969 		if ( info->params.flags & HDLC_FLAG_DPLL_DIV16 ) {  in usc_set_sdlc_mode()
4973 		else if ( info->params.flags & HDLC_FLAG_DPLL_DIV8 ) {  in usc_set_sdlc_mode()
4994  		if ( info->params.clock_speed )  in usc_set_sdlc_mode()
4996 			Tc = (u16)((XtalSpeed/DpllDivisor)/info->params.clock_speed);  in usc_set_sdlc_mode()
4997 			if ( !((((XtalSpeed/DpllDivisor) % info->params.clock_speed) * 2)  in usc_set_sdlc_mode()
4998 			       / info->params.clock_speed) )  in usc_set_sdlc_mode()
5006 		usc_OutReg( info, TC1R, Tc );  in usc_set_sdlc_mode()
5010 		switch ( info->params.encoding ) {  in usc_set_sdlc_mode()
5022 	usc_OutReg( info, HCR, RegValue );  in usc_set_sdlc_mode()
5043 	usc_OutReg( info, CCSR, 0x1020 );  in usc_set_sdlc_mode()
5046 	if ( info->params.flags & HDLC_FLAG_AUTO_CTS ) {  in usc_set_sdlc_mode()
5047 		usc_OutReg( info, SICR,  in usc_set_sdlc_mode()
5048 			    (u16)(usc_InReg(info,SICR) | SICR_CTS_INACTIVE) );  in usc_set_sdlc_mode()
5053 	usc_EnableMasterIrqBit( info );  in usc_set_sdlc_mode()
5055 	usc_ClearIrqPendingBits( info, RECEIVE_STATUS | RECEIVE_DATA |  in usc_set_sdlc_mode()
5059 	usc_OutReg(info, SICR, (u16)(usc_InReg(info,SICR) | BIT3));  in usc_set_sdlc_mode()
5060 	usc_EnableInterrupts(info, MISC);  in usc_set_sdlc_mode()
5062 	info->mbre_bit = 0;  in usc_set_sdlc_mode()
5063 	outw( 0, info->io_base ); 			/* clear Master Bus Enable (DCAR) */  in usc_set_sdlc_mode()
5064 	usc_DmaCmd( info, DmaCmd_ResetAllChannels );	/* disable both DMA channels */  in usc_set_sdlc_mode()
5065 	info->mbre_bit = BIT8;  in usc_set_sdlc_mode()
5066 	outw( BIT8, info->io_base );			/* set Master Bus Enable (DCAR) */  in usc_set_sdlc_mode()
5068 	if (info->bus_type == MGSL_BUS_TYPE_ISA) {  in usc_set_sdlc_mode()
5071 		usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT15) & ~BIT14));  in usc_set_sdlc_mode()
5096 	if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {  in usc_set_sdlc_mode()
5098 		usc_OutDmaReg( info, DCR, 0xa00b );  in usc_set_sdlc_mode()
5101 		usc_OutDmaReg( info, DCR, 0x800b );  in usc_set_sdlc_mode()
5117 	usc_OutDmaReg( info, RDMR, 0xf200 );  in usc_set_sdlc_mode()
5133 	usc_OutDmaReg( info, TDMR, 0xf200 );  in usc_set_sdlc_mode()
5149 	usc_OutDmaReg( info, DICR, 0x9000 );  in usc_set_sdlc_mode()
5151 	usc_InDmaReg( info, RDMR );		/* clear pending receive DMA IRQ bits */  in usc_set_sdlc_mode()
5152 	usc_InDmaReg( info, TDMR );		/* clear pending transmit DMA IRQ bits */  in usc_set_sdlc_mode()
5153 	usc_OutDmaReg( info, CDIR, 0x0303 );	/* clear IUS and Pending for Tx and Rx */  in usc_set_sdlc_mode()
5171 	switch ( info->params.preamble_length ) {  in usc_set_sdlc_mode()
5177 	switch ( info->params.preamble ) {  in usc_set_sdlc_mode()
5184 	usc_OutReg( info, CCR, RegValue );  in usc_set_sdlc_mode()
5194 	if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {  in usc_set_sdlc_mode()
5196 		usc_OutDmaReg( info, BDCR, 0x0000 );  in usc_set_sdlc_mode()
5199 		usc_OutDmaReg( info, BDCR, 0x2000 );  in usc_set_sdlc_mode()
5201 	usc_stop_transmitter(info);  in usc_set_sdlc_mode()
5202 	usc_stop_receiver(info);  in usc_set_sdlc_mode()
5216 static void usc_enable_loopback(struct mgsl_struct *info, int enable)  in usc_enable_loopback()  argument
5220 		usc_OutReg(info,IOCR,usc_InReg(info,IOCR) | (BIT7 | BIT6));  in usc_enable_loopback()
5235 		usc_OutReg( info, CMCR, 0x0f64 );  in usc_enable_loopback()
5239 		if (info->params.clock_speed) {  in usc_enable_loopback()
5240 			if (info->bus_type == MGSL_BUS_TYPE_PCI)  in usc_enable_loopback()
5241 				usc_OutReg(info, TC0R, (u16)((11059200/info->params.clock_speed)-1));  in usc_enable_loopback()
5243 				usc_OutReg(info, TC0R, (u16)((14745600/info->params.clock_speed)-1));  in usc_enable_loopback()
5245 			usc_OutReg(info, TC0R, (u16)8);  in usc_enable_loopback()
5249 		usc_OutReg( info, HCR, (u16)((usc_InReg( info, HCR ) & ~BIT1) | BIT0) );  in usc_enable_loopback()
5252 		usc_OutReg(info, IOCR, (u16)((usc_InReg(info, IOCR) & 0xfff8) | 0x0004));  in usc_enable_loopback()
5255 		info->loopback_bits = 0x300;  in usc_enable_loopback()
5256 		outw( 0x0300, info->io_base + CCAR );  in usc_enable_loopback()
5259 		usc_OutReg(info,IOCR,usc_InReg(info,IOCR) & ~(BIT7 | BIT6));  in usc_enable_loopback()
5262 		info->loopback_bits = 0;  in usc_enable_loopback()
5263 		outw( 0,info->io_base + CCAR );  in usc_enable_loopback()
5280 static void usc_enable_aux_clock( struct mgsl_struct *info, u32 data_rate )  in usc_enable_aux_clock()  argument
5286 		if ( info->bus_type == MGSL_BUS_TYPE_PCI )  in usc_enable_aux_clock()
5304 		usc_OutReg( info, TC0R, Tc );  in usc_enable_aux_clock()
5312 		usc_OutReg( info, HCR, (u16)((usc_InReg( info, HCR ) & ~BIT1) | BIT0) );  in usc_enable_aux_clock()
5315 		usc_OutReg( info, IOCR, (u16)((usc_InReg(info, IOCR) & 0xfff8) | 0x0004) );  in usc_enable_aux_clock()
5318 		usc_OutReg( info, HCR, (u16)(usc_InReg( info, HCR ) & ~BIT0) );  in usc_enable_aux_clock()
5337 static void usc_process_rxoverrun_sync( struct mgsl_struct *info )  in usc_process_rxoverrun_sync()  argument
5346 	DMABUFFERENTRY *buffer_list = info->rx_buffer_list;  in usc_process_rxoverrun_sync()
5349 	usc_DmaCmd( info, DmaCmd_PauseRxChannel );  in usc_process_rxoverrun_sync()
5350 	usc_RCmd( info, RCmd_EnterHuntmode );  in usc_process_rxoverrun_sync()
5351 	usc_RTCmd( info, RTCmd_PurgeRxFifo );  in usc_process_rxoverrun_sync()
5356 	frame_start_index = start_index = end_index = info->current_rx_buffer;  in usc_process_rxoverrun_sync()
5389   		if ( end_index == info->rx_buffer_count )  in usc_process_rxoverrun_sync()
5397 			mgsl_reset_rx_dma_buffers( info );  in usc_process_rxoverrun_sync()
5418 			*((unsigned long *)&(info->rx_buffer_list[start_index++].count)) = DMABUFFERSIZE;  in usc_process_rxoverrun_sync()
5421   			if ( start_index == info->rx_buffer_count )  in usc_process_rxoverrun_sync()
5431 		usc_UnlatchRxstatusBits(info,RXSTATUS_ALL);  in usc_process_rxoverrun_sync()
5432 		usc_ClearIrqPendingBits(info, RECEIVE_DATA|RECEIVE_STATUS);  in usc_process_rxoverrun_sync()
5433 		usc_UnlatchRxstatusBits(info, RECEIVE_DATA|RECEIVE_STATUS);  in usc_process_rxoverrun_sync()
5435 		usc_EnableReceiver(info,DISABLE_UNCONDITIONAL);  in usc_process_rxoverrun_sync()
5438 		usc_OutReg( info, CCSR, (u16)(usc_InReg(info,CCSR) | BIT13) );  in usc_process_rxoverrun_sync()
5441 		phys_addr = info->rx_buffer_list[frame_start_index].phys_entry;  in usc_process_rxoverrun_sync()
5442 		usc_OutDmaReg( info, NRARL, (u16)phys_addr );  in usc_process_rxoverrun_sync()
5443 		usc_OutDmaReg( info, NRARU, (u16)(phys_addr >> 16) );  in usc_process_rxoverrun_sync()
5445 		usc_UnlatchRxstatusBits( info, RXSTATUS_ALL );  in usc_process_rxoverrun_sync()
5446 		usc_ClearIrqPendingBits( info, RECEIVE_DATA | RECEIVE_STATUS );  in usc_process_rxoverrun_sync()
5447 		usc_EnableInterrupts( info, RECEIVE_STATUS );  in usc_process_rxoverrun_sync()
5452 		usc_OutDmaReg( info, RDIAR, BIT3 | BIT2 );  in usc_process_rxoverrun_sync()
5453 		usc_OutDmaReg( info, DICR, (u16)(usc_InDmaReg(info,DICR) | BIT1) );  in usc_process_rxoverrun_sync()
5454 		usc_DmaCmd( info, DmaCmd_InitRxChannel );  in usc_process_rxoverrun_sync()
5455 		if ( info->params.flags & HDLC_FLAG_AUTO_DCD )  in usc_process_rxoverrun_sync()
5456 			usc_EnableReceiver(info,ENABLE_AUTO_DCD);  in usc_process_rxoverrun_sync()
5458 			usc_EnableReceiver(info,ENABLE_UNCONDITIONAL);  in usc_process_rxoverrun_sync()
5463 		usc_OutReg( info, CCSR, (u16)(usc_InReg(info,CCSR) | BIT13) );  in usc_process_rxoverrun_sync()
5464 		usc_RTCmd( info, RTCmd_PurgeRxFifo );  in usc_process_rxoverrun_sync()
5476 static void usc_stop_receiver( struct mgsl_struct *info )  in usc_stop_receiver()  argument
5480 			 __FILE__,__LINE__, info->device_name );  in usc_stop_receiver()
5484 	usc_DmaCmd( info, DmaCmd_ResetRxChannel );  in usc_stop_receiver()
5486 	usc_UnlatchRxstatusBits( info, RXSTATUS_ALL );  in usc_stop_receiver()
5487 	usc_ClearIrqPendingBits( info, RECEIVE_DATA | RECEIVE_STATUS );  in usc_stop_receiver()
5488 	usc_DisableInterrupts( info, RECEIVE_DATA | RECEIVE_STATUS );  in usc_stop_receiver()
5490 	usc_EnableReceiver(info,DISABLE_UNCONDITIONAL);  in usc_stop_receiver()
5493 	usc_OutReg( info, CCSR, (u16)(usc_InReg(info,CCSR) | BIT13) );  in usc_stop_receiver()
5494 	usc_RTCmd( info, RTCmd_PurgeRxFifo );  in usc_stop_receiver()
5496 	info->rx_enabled = false;  in usc_stop_receiver()
5497 	info->rx_overflow = false;  in usc_stop_receiver()
5498 	info->rx_rcc_underrun = false;  in usc_stop_receiver()
5509 static void usc_start_receiver( struct mgsl_struct *info )  in usc_start_receiver()  argument
5515 			 __FILE__,__LINE__, info->device_name );  in usc_start_receiver()
5517 	mgsl_reset_rx_dma_buffers( info );  in usc_start_receiver()
5518 	usc_stop_receiver( info );  in usc_start_receiver()
5520 	usc_OutReg( info, CCSR, (u16)(usc_InReg(info,CCSR) | BIT13) );  in usc_start_receiver()
5521 	usc_RTCmd( info, RTCmd_PurgeRxFifo );  in usc_start_receiver()
5523 	if ( info->params.mode == MGSL_MODE_HDLC ||  in usc_start_receiver()
5524 		info->params.mode == MGSL_MODE_RAW ) {  in usc_start_receiver()
5530 		phys_addr = info->rx_buffer_list[0].phys_entry;  in usc_start_receiver()
5531 		usc_OutDmaReg( info, NRARL, (u16)phys_addr );  in usc_start_receiver()
5532 		usc_OutDmaReg( info, NRARU, (u16)(phys_addr >> 16) );  in usc_start_receiver()
5534 		usc_UnlatchRxstatusBits( info, RXSTATUS_ALL );  in usc_start_receiver()
5535 		usc_ClearIrqPendingBits( info, RECEIVE_DATA | RECEIVE_STATUS );  in usc_start_receiver()
5536 		usc_EnableInterrupts( info, RECEIVE_STATUS );  in usc_start_receiver()
5541 		usc_OutDmaReg( info, RDIAR, BIT3 | BIT2 );  in usc_start_receiver()
5542 		usc_OutDmaReg( info, DICR, (u16)(usc_InDmaReg(info,DICR) | BIT1) );  in usc_start_receiver()
5543 		usc_DmaCmd( info, DmaCmd_InitRxChannel );  in usc_start_receiver()
5544 		if ( info->params.flags & HDLC_FLAG_AUTO_DCD )  in usc_start_receiver()
5545 			usc_EnableReceiver(info,ENABLE_AUTO_DCD);  in usc_start_receiver()
5547 			usc_EnableReceiver(info,ENABLE_UNCONDITIONAL);  in usc_start_receiver()
5549 		usc_UnlatchRxstatusBits(info, RXSTATUS_ALL);  in usc_start_receiver()
5550 		usc_ClearIrqPendingBits(info, RECEIVE_DATA | RECEIVE_STATUS);  in usc_start_receiver()
5551 		usc_EnableInterrupts(info, RECEIVE_DATA);  in usc_start_receiver()
5553 		usc_RTCmd( info, RTCmd_PurgeRxFifo );  in usc_start_receiver()
5554 		usc_RCmd( info, RCmd_EnterHuntmode );  in usc_start_receiver()
5556 		usc_EnableReceiver(info,ENABLE_UNCONDITIONAL);  in usc_start_receiver()
5559 	usc_OutReg( info, CCSR, 0x1020 );  in usc_start_receiver()
5561 	info->rx_enabled = true;  in usc_start_receiver()
5573 static void usc_start_transmitter( struct mgsl_struct *info )  in usc_start_transmitter()  argument
5580 			 __FILE__,__LINE__, info->device_name );  in usc_start_transmitter()
5582 	if ( info->xmit_cnt ) {  in usc_start_transmitter()
5588 		info->drop_rts_on_tx_done = false;  in usc_start_transmitter()
5590 		if ( info->params.flags & HDLC_FLAG_AUTO_RTS ) {  in usc_start_transmitter()
5591 			usc_get_serial_signals( info );  in usc_start_transmitter()
5592 			if ( !(info->serial_signals & SerialSignal_RTS) ) {  in usc_start_transmitter()
5593 				info->serial_signals |= SerialSignal_RTS;  in usc_start_transmitter()
5594 				usc_set_serial_signals( info );  in usc_start_transmitter()
5595 				info->drop_rts_on_tx_done = true;  in usc_start_transmitter()
5600 		if ( info->params.mode == MGSL_MODE_ASYNC ) {  in usc_start_transmitter()
5601 			if ( !info->tx_active ) {  in usc_start_transmitter()
5602 				usc_UnlatchTxstatusBits(info, TXSTATUS_ALL);  in usc_start_transmitter()
5603 				usc_ClearIrqPendingBits(info, TRANSMIT_STATUS + TRANSMIT_DATA);  in usc_start_transmitter()
5604 				usc_EnableInterrupts(info, TRANSMIT_DATA);  in usc_start_transmitter()
5605 				usc_load_txfifo(info);  in usc_start_transmitter()
5609 			usc_DmaCmd( info, DmaCmd_ResetTxChannel );  in usc_start_transmitter()
5614 			FrameSize = info->tx_buffer_list[info->start_tx_dma_buffer].rcc;  in usc_start_transmitter()
5620 	    		if ( info->params.mode == MGSL_MODE_RAW )  in usc_start_transmitter()
5621 				info->tx_buffer_list[info->start_tx_dma_buffer].rcc = 0;  in usc_start_transmitter()
5625 			usc_OutReg( info, TCLR, (u16)FrameSize );  in usc_start_transmitter()
5627 			usc_RTCmd( info, RTCmd_PurgeTxFifo );  in usc_start_transmitter()
5630 			phys_addr = info->tx_buffer_list[info->start_tx_dma_buffer].phys_entry;  in usc_start_transmitter()
5631 			usc_OutDmaReg( info, NTARL, (u16)phys_addr );  in usc_start_transmitter()
5632 			usc_OutDmaReg( info, NTARU, (u16)(phys_addr >> 16) );  in usc_start_transmitter()
5634 			usc_UnlatchTxstatusBits( info, TXSTATUS_ALL );  in usc_start_transmitter()
5635 			usc_ClearIrqPendingBits( info, TRANSMIT_STATUS );  in usc_start_transmitter()
5636 			usc_EnableInterrupts( info, TRANSMIT_STATUS );  in usc_start_transmitter()
5638 			if ( info->params.mode == MGSL_MODE_RAW &&  in usc_start_transmitter()
5639 					info->num_tx_dma_buffers > 1 ) {  in usc_start_transmitter()
5647 			   usc_OutDmaReg( info, TDIAR, BIT2|BIT3 );  in usc_start_transmitter()
5648 			   usc_OutDmaReg( info, DICR, (u16)(usc_InDmaReg(info,DICR) | BIT0) );  in usc_start_transmitter()
5652 			usc_DmaCmd( info, DmaCmd_InitTxChannel );  in usc_start_transmitter()
5654 			usc_TCmd( info, TCmd_SendFrame );  in usc_start_transmitter()
5656 			mod_timer(&info->tx_timer, jiffies +  in usc_start_transmitter()
5659 		info->tx_active = true;  in usc_start_transmitter()
5662 	if ( !info->tx_enabled ) {  in usc_start_transmitter()
5663 		info->tx_enabled = true;  in usc_start_transmitter()
5664 		if ( info->params.flags & HDLC_FLAG_AUTO_CTS )  in usc_start_transmitter()
5665 			usc_EnableTransmitter(info,ENABLE_AUTO_CTS);  in usc_start_transmitter()
5667 			usc_EnableTransmitter(info,ENABLE_UNCONDITIONAL);  in usc_start_transmitter()
5679 static void usc_stop_transmitter( struct mgsl_struct *info )  in usc_stop_transmitter()  argument
5683 			 __FILE__,__LINE__, info->device_name );  in usc_stop_transmitter()
5685 	del_timer(&info->tx_timer);	  in usc_stop_transmitter()
5687 	usc_UnlatchTxstatusBits( info, TXSTATUS_ALL );  in usc_stop_transmitter()
5688 	usc_ClearIrqPendingBits( info, TRANSMIT_STATUS + TRANSMIT_DATA );  in usc_stop_transmitter()
5689 	usc_DisableInterrupts( info, TRANSMIT_STATUS + TRANSMIT_DATA );  in usc_stop_transmitter()
5691 	usc_EnableTransmitter(info,DISABLE_UNCONDITIONAL);  in usc_stop_transmitter()
5692 	usc_DmaCmd( info, DmaCmd_ResetTxChannel );  in usc_stop_transmitter()
5693 	usc_RTCmd( info, RTCmd_PurgeTxFifo );  in usc_stop_transmitter()
5695 	info->tx_enabled = false;  in usc_stop_transmitter()
5696 	info->tx_active = false;  in usc_stop_transmitter()
5708 static void usc_load_txfifo( struct mgsl_struct *info )  in usc_load_txfifo()  argument
5713 	if ( !info->xmit_cnt && !info->x_char )  in usc_load_txfifo()
5717 	usc_TCmd( info, TCmd_SelectTicrTxFifostatus );  in usc_load_txfifo()
5721 	while( (Fifocount = usc_InReg(info, TICR) >> 8) && info->xmit_cnt ) {  in usc_load_txfifo()
5725 		if ( (info->xmit_cnt > 1) && (Fifocount > 1) && !info->x_char ) {  in usc_load_txfifo()
5728 			TwoBytes[0] = info->xmit_buf[info->xmit_tail++];  in usc_load_txfifo()
5729 			info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1);  in usc_load_txfifo()
5730 			TwoBytes[1] = info->xmit_buf[info->xmit_tail++];  in usc_load_txfifo()
5731 			info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1);  in usc_load_txfifo()
5733 			outw( *((u16 *)TwoBytes), info->io_base + DATAREG);  in usc_load_txfifo()
5735 			info->xmit_cnt -= 2;  in usc_load_txfifo()
5736 			info->icount.tx += 2;  in usc_load_txfifo()
5740 			outw( (inw( info->io_base + CCAR) & 0x0780) | (TDR+LSBONLY),  in usc_load_txfifo()
5741 				info->io_base + CCAR );  in usc_load_txfifo()
5743 			if (info->x_char) {  in usc_load_txfifo()
5745 				outw( info->x_char,info->io_base + CCAR );  in usc_load_txfifo()
5746 				info->x_char = 0;  in usc_load_txfifo()
5748 				outw( info->xmit_buf[info->xmit_tail++],info->io_base + CCAR );  in usc_load_txfifo()
5749 				info->xmit_tail = info->xmit_tail & (SERIAL_XMIT_SIZE-1);  in usc_load_txfifo()
5750 				info->xmit_cnt--;  in usc_load_txfifo()
5752 			info->icount.tx++;  in usc_load_txfifo()
5765 static void usc_reset( struct mgsl_struct *info )  in usc_reset()  argument
5767 	if ( info->bus_type == MGSL_BUS_TYPE_PCI ) {  in usc_reset()
5774 		volatile u32 *MiscCtrl = (u32 *)(info->lcr_base + 0x50);  in usc_reset()
5775 		u32 *LCR0BRDR = (u32 *)(info->lcr_base + 0x28);  in usc_reset()
5777 		info->misc_ctrl_value |= BIT30;  in usc_reset()
5778 		*MiscCtrl = info->misc_ctrl_value;  in usc_reset()
5788 		info->misc_ctrl_value &= ~BIT30;  in usc_reset()
5789 		*MiscCtrl = info->misc_ctrl_value;  in usc_reset()
5803 		outb( 0,info->io_base + 8 );  in usc_reset()
5806 	info->mbre_bit = 0;  in usc_reset()
5807 	info->loopback_bits = 0;  in usc_reset()
5808 	info->usc_idle_mode = 0;  in usc_reset()
5827 	outw( 0x000c,info->io_base + SDPIN );  in usc_reset()
5830 	outw( 0,info->io_base );  in usc_reset()
5831 	outw( 0,info->io_base + CCAR );  in usc_reset()
5834 	usc_RTCmd( info, RTCmd_SelectLittleEndian );  in usc_reset()
5851 	usc_OutReg( info, PCR, 0xf0f5 );  in usc_reset()
5868 	usc_OutReg( info, IOCR, 0x0004 );  in usc_reset()
5879 static void usc_set_async_mode( struct mgsl_struct *info )  in usc_set_async_mode()  argument
5884 	usc_DisableMasterIrqBit( info );  in usc_set_async_mode()
5886 	outw( 0, info->io_base ); 			/* clear Master Bus Enable (DCAR) */  in usc_set_async_mode()
5887 	usc_DmaCmd( info, DmaCmd_ResetAllChannels );	/* disable both DMA channels */  in usc_set_async_mode()
5889 	usc_loopback_frame( info );  in usc_set_async_mode()
5904 	if ( info->params.stop_bits != 1 )  in usc_set_async_mode()
5906 	usc_OutReg( info, CMR, RegValue );  in usc_set_async_mode()
5923 	if ( info->params.data_bits != 8 )  in usc_set_async_mode()
5926 	if ( info->params.parity != ASYNC_PARITY_NONE ) {  in usc_set_async_mode()
5928 		if ( info->params.parity != ASYNC_PARITY_ODD )  in usc_set_async_mode()
5932 	usc_OutReg( info, RMR, RegValue );  in usc_set_async_mode()
5937 	usc_RCmd( info, RCmd_SelectRicrIntLevel );  in usc_set_async_mode()
5960 	usc_OutReg( info, RICR, 0x0000 );  in usc_set_async_mode()
5962 	usc_UnlatchRxstatusBits( info, RXSTATUS_ALL );  in usc_set_async_mode()
5963 	usc_ClearIrqPendingBits( info, RECEIVE_STATUS );  in usc_set_async_mode()
5980 	if ( info->params.data_bits != 8 )  in usc_set_async_mode()
5983 	if ( info->params.parity != ASYNC_PARITY_NONE ) {  in usc_set_async_mode()
5985 		if ( info->params.parity != ASYNC_PARITY_ODD )  in usc_set_async_mode()
5989 	usc_OutReg( info, TMR, RegValue );  in usc_set_async_mode()
5991 	usc_set_txidle( info );  in usc_set_async_mode()
5996 	usc_TCmd( info, TCmd_SelectTicrIntLevel );  in usc_set_async_mode()
6014 	usc_OutReg( info, TICR, 0x1f40 );  in usc_set_async_mode()
6016 	usc_UnlatchTxstatusBits( info, TXSTATUS_ALL );  in usc_set_async_mode()
6017 	usc_ClearIrqPendingBits( info, TRANSMIT_STATUS );  in usc_set_async_mode()
6019 	usc_enable_async_clock( info, info->params.data_rate );  in usc_set_async_mode()
6040 	usc_OutReg( info, CCSR, 0x0020 );  in usc_set_async_mode()
6042 	usc_DisableInterrupts( info, TRANSMIT_STATUS + TRANSMIT_DATA +  in usc_set_async_mode()
6045 	usc_ClearIrqPendingBits( info, TRANSMIT_STATUS + TRANSMIT_DATA +  in usc_set_async_mode()
6048 	usc_EnableMasterIrqBit( info );  in usc_set_async_mode()
6050 	if (info->bus_type == MGSL_BUS_TYPE_ISA) {  in usc_set_async_mode()
6053 		usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) & ~BIT12));  in usc_set_async_mode()
6056 	if (info->params.loopback) {  in usc_set_async_mode()
6057 		info->loopback_bits = 0x300;  in usc_set_async_mode()
6058 		outw(0x0300, info->io_base + CCAR);  in usc_set_async_mode()
6077 static void usc_loopback_frame( struct mgsl_struct *info )  in usc_loopback_frame()  argument
6080 	unsigned long oldmode = info->params.mode;  in usc_loopback_frame()
6082 	info->params.mode = MGSL_MODE_HDLC;  in usc_loopback_frame()
6084 	usc_DisableMasterIrqBit( info );  in usc_loopback_frame()
6086 	usc_set_sdlc_mode( info );  in usc_loopback_frame()
6087 	usc_enable_loopback( info, 1 );  in usc_loopback_frame()
6090 	usc_OutReg( info, TC0R, 0 );  in usc_loopback_frame()
6106 	usc_OutReg( info, CCR, 0x0100 );  in usc_loopback_frame()
6109 	usc_RTCmd( info, RTCmd_PurgeRxFifo );  in usc_loopback_frame()
6110 	usc_EnableReceiver(info,ENABLE_UNCONDITIONAL);  in usc_loopback_frame()
6115 	usc_OutReg( info, TCLR, 2 );  in usc_loopback_frame()
6116 	usc_RTCmd( info, RTCmd_PurgeTxFifo );  in usc_loopback_frame()
6119 	usc_UnlatchTxstatusBits(info,TXSTATUS_ALL);  in usc_loopback_frame()
6120 	outw(0,info->io_base + DATAREG);  in usc_loopback_frame()
6123 	usc_TCmd( info, TCmd_SendFrame );  in usc_loopback_frame()
6124 	usc_EnableTransmitter(info,ENABLE_UNCONDITIONAL);  in usc_loopback_frame()
6128 		if (usc_InReg( info, RCSR ) & (BIT8 | BIT4 | BIT3 | BIT1))  in usc_loopback_frame()
6132 	usc_enable_loopback(info, 0);  in usc_loopback_frame()
6134 	usc_EnableMasterIrqBit(info);  in usc_loopback_frame()
6136 	info->params.mode = oldmode;  in usc_loopback_frame()
6145 static void usc_set_sync_mode( struct mgsl_struct *info )  in usc_set_sync_mode()  argument
6147 	usc_loopback_frame( info );  in usc_set_sync_mode()
6148 	usc_set_sdlc_mode( info );  in usc_set_sync_mode()
6150 	if (info->bus_type == MGSL_BUS_TYPE_ISA) {  in usc_set_sync_mode()
6153 		usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) & ~BIT12));  in usc_set_sync_mode()
6156 	usc_enable_aux_clock(info, info->params.clock_speed);  in usc_set_sync_mode()
6158 	if (info->params.loopback)  in usc_set_sync_mode()
6159 		usc_enable_loopback(info,1);  in usc_set_sync_mode()
6168 static void usc_set_txidle( struct mgsl_struct *info )  in usc_set_txidle()  argument
6174 	switch( info->idle_mode ){  in usc_set_txidle()
6184 	info->usc_idle_mode = usc_idle_mode;  in usc_set_txidle()
6186 	info->tcsr_value &= ~IDLEMODE_MASK;	/* clear idle mode bits */  in usc_set_txidle()
6187 	info->tcsr_value += usc_idle_mode;  in usc_set_txidle()
6188 	usc_OutReg(info, TCSR, info->tcsr_value);  in usc_set_txidle()
6197 	if ( info->params.mode == MGSL_MODE_RAW ) {  in usc_set_txidle()
6199 		switch( info->idle_mode ) {  in usc_set_txidle()
6219 		usc_SetTransmitSyncChars(info,syncpat,syncpat);  in usc_set_txidle()
6231 static void usc_get_serial_signals( struct mgsl_struct *info )  in usc_get_serial_signals()  argument
6236 	info->serial_signals &= SerialSignal_RTS | SerialSignal_DTR;  in usc_get_serial_signals()
6241 	status = usc_InReg( info, MISR );  in usc_get_serial_signals()
6246 		info->serial_signals |= SerialSignal_CTS;  in usc_get_serial_signals()
6249 		info->serial_signals |= SerialSignal_DCD;  in usc_get_serial_signals()
6252 		info->serial_signals |= SerialSignal_RI;  in usc_get_serial_signals()
6255 		info->serial_signals |= SerialSignal_DSR;  in usc_get_serial_signals()
6267 static void usc_set_serial_signals( struct mgsl_struct *info )  in usc_set_serial_signals()  argument
6270 	unsigned char V24Out = info->serial_signals;  in usc_set_serial_signals()
6274 	Control = usc_InReg( info, PCR );  in usc_set_serial_signals()
6286 	usc_OutReg( info, PCR, Control );  in usc_set_serial_signals()
6299 static void usc_enable_async_clock( struct mgsl_struct *info, u32 data_rate )  in usc_enable_async_clock()  argument
6316 		usc_OutReg( info, CMCR, 0x0f64 );  in usc_enable_async_clock()
6325 		if ( info->bus_type == MGSL_BUS_TYPE_PCI )  in usc_enable_async_clock()
6326 			usc_OutReg( info, TC0R, (u16)((691200/data_rate) - 1) );  in usc_enable_async_clock()
6328 			usc_OutReg( info, TC0R, (u16)((921600/data_rate) - 1) );  in usc_enable_async_clock()
6337 		usc_OutReg( info, HCR,  in usc_enable_async_clock()
6338 			    (u16)((usc_InReg( info, HCR ) & ~BIT1) | BIT0) );  in usc_enable_async_clock()
6343 		usc_OutReg( info, IOCR,  in usc_enable_async_clock()
6344 			    (u16)((usc_InReg(info, IOCR) & 0xfff8) | 0x0004) );  in usc_enable_async_clock()
6347 		usc_OutReg( info, HCR, (u16)(usc_InReg( info, HCR ) & ~BIT0) );  in usc_enable_async_clock()
6409 static void mgsl_reset_tx_dma_buffers( struct mgsl_struct *info )  in mgsl_reset_tx_dma_buffers()  argument
6413 	for ( i = 0; i < info->tx_buffer_count; i++ ) {  in mgsl_reset_tx_dma_buffers()
6414 		*((unsigned long *)&(info->tx_buffer_list[i].count)) = 0;  in mgsl_reset_tx_dma_buffers()
6417 	info->current_tx_buffer = 0;  in mgsl_reset_tx_dma_buffers()
6418 	info->start_tx_dma_buffer = 0;  in mgsl_reset_tx_dma_buffers()
6419 	info->tx_dma_buffers_used = 0;  in mgsl_reset_tx_dma_buffers()
6421 	info->get_tx_holding_index = 0;  in mgsl_reset_tx_dma_buffers()
6422 	info->put_tx_holding_index = 0;  in mgsl_reset_tx_dma_buffers()
6423 	info->tx_holding_count = 0;  in mgsl_reset_tx_dma_buffers()
6435 static int num_free_tx_dma_buffers(struct mgsl_struct *info)  in num_free_tx_dma_buffers()  argument
6437 	return info->tx_buffer_count - info->tx_dma_buffers_used;  in num_free_tx_dma_buffers()
6450 static void mgsl_reset_rx_dma_buffers( struct mgsl_struct *info )  in mgsl_reset_rx_dma_buffers()  argument
6454 	for ( i = 0; i < info->rx_buffer_count; i++ ) {  in mgsl_reset_rx_dma_buffers()
6455 		*((unsigned long *)&(info->rx_buffer_list[i].count)) = DMABUFFERSIZE;  in mgsl_reset_rx_dma_buffers()
6460 	info->current_rx_buffer = 0;  in mgsl_reset_rx_dma_buffers()
6478 static void mgsl_free_rx_frame_buffers( struct mgsl_struct *info, unsigned int StartIndex, unsigned…  in mgsl_free_rx_frame_buffers()  argument
6490 		pBufEntry = &(info->rx_buffer_list[Index]);  in mgsl_free_rx_frame_buffers()
6504 		if ( Index == info->rx_buffer_count )  in mgsl_free_rx_frame_buffers()
6509 	info->current_rx_buffer = Index;  in mgsl_free_rx_frame_buffers()
6521 static bool mgsl_get_rx_frame(struct mgsl_struct *info)  in mgsl_get_rx_frame()  argument
6529 	struct tty_struct *tty = info->port.tty;  in mgsl_get_rx_frame()
6539 	StartIndex = EndIndex = info->current_rx_buffer;  in mgsl_get_rx_frame()
6541 	while( !info->rx_buffer_list[EndIndex].status ) {  in mgsl_get_rx_frame()
6549 		if ( info->rx_buffer_list[EndIndex].count )  in mgsl_get_rx_frame()
6554 		if ( EndIndex == info->rx_buffer_count )  in mgsl_get_rx_frame()
6564 			if ( info->rx_enabled ){  in mgsl_get_rx_frame()
6565 				spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_get_rx_frame()
6566 				usc_start_receiver(info);  in mgsl_get_rx_frame()
6567 				spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_get_rx_frame()
6576 	status = info->rx_buffer_list[EndIndex].status;  in mgsl_get_rx_frame()
6581 			info->icount.rxshort++;  in mgsl_get_rx_frame()
6583 			info->icount.rxabort++;  in mgsl_get_rx_frame()
6585 			info->icount.rxover++;  in mgsl_get_rx_frame()
6587 			info->icount.rxcrc++;  in mgsl_get_rx_frame()
6588 			if ( info->params.crc_type & HDLC_CRC_RETURN_EX )  in mgsl_get_rx_frame()
6594 			info->netdev->stats.rx_errors++;  in mgsl_get_rx_frame()
6595 			info->netdev->stats.rx_frame_errors++;  in mgsl_get_rx_frame()
6608 		framesize = RCLRVALUE - info->rx_buffer_list[EndIndex].rcc;  in mgsl_get_rx_frame()
6611 		if ( info->params.crc_type == HDLC_CRC_16_CCITT )  in mgsl_get_rx_frame()
6613 		else if ( info->params.crc_type == HDLC_CRC_32_CCITT )  in mgsl_get_rx_frame()
6619 			__FILE__,__LINE__,info->device_name,status,framesize);  in mgsl_get_rx_frame()
6622 		mgsl_trace_block(info,info->rx_buffer_list[StartIndex].virt_addr,  in mgsl_get_rx_frame()
6626 		if ( ( (info->params.crc_type & HDLC_CRC_RETURN_EX) &&  in mgsl_get_rx_frame()
6627 				((framesize+1) > info->max_frame_size) ) ||  in mgsl_get_rx_frame()
6628 			(framesize > info->max_frame_size) )  in mgsl_get_rx_frame()
6629 			info->icount.rxlong++;  in mgsl_get_rx_frame()
6634 			unsigned char *ptmp = info->intermediate_rxbuffer;  in mgsl_get_rx_frame()
6637 			info->icount.rxok++;  in mgsl_get_rx_frame()
6646 				pBufEntry = &(info->rx_buffer_list[index]);  in mgsl_get_rx_frame()
6651 				if ( ++index == info->rx_buffer_count )  in mgsl_get_rx_frame()
6655 			if ( info->params.crc_type & HDLC_CRC_RETURN_EX ) {  in mgsl_get_rx_frame()
6663 						__FILE__,__LINE__,info->device_name,  in mgsl_get_rx_frame()
6668 			if (info->netcount)  in mgsl_get_rx_frame()
6669 				hdlcdev_rx(info,info->intermediate_rxbuffer,framesize);  in mgsl_get_rx_frame()
6672 				ldisc_receive_buf(tty, info->intermediate_rxbuffer, info->flag_buf, framesize);  in mgsl_get_rx_frame()
6676 	mgsl_free_rx_frame_buffers( info, StartIndex, EndIndex );  in mgsl_get_rx_frame()
6682 	if ( info->rx_enabled && info->rx_overflow ) {  in mgsl_get_rx_frame()
6688 		if ( !info->rx_buffer_list[EndIndex].status &&  in mgsl_get_rx_frame()
6689 			info->rx_buffer_list[EndIndex].count ) {  in mgsl_get_rx_frame()
6690 			spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_get_rx_frame()
6691 			usc_start_receiver(info);  in mgsl_get_rx_frame()
6692 			spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_get_rx_frame()
6719 static bool mgsl_get_raw_rx_frame(struct mgsl_struct *info)  in mgsl_get_raw_rx_frame()  argument
6727 	struct tty_struct *tty = info->port.tty;  in mgsl_get_raw_rx_frame()
6744 	CurrentIndex = NextIndex = info->current_rx_buffer;  in mgsl_get_raw_rx_frame()
6746 	if ( NextIndex == info->rx_buffer_count )  in mgsl_get_raw_rx_frame()
6749 	if ( info->rx_buffer_list[CurrentIndex].status != 0 ||  in mgsl_get_raw_rx_frame()
6750 		(info->rx_buffer_list[CurrentIndex].count == 0 &&  in mgsl_get_raw_rx_frame()
6751 			info->rx_buffer_list[NextIndex].count == 0)) {  in mgsl_get_raw_rx_frame()
6759 		status = info->rx_buffer_list[CurrentIndex].status;  in mgsl_get_raw_rx_frame()
6764 				info->icount.rxshort++;  in mgsl_get_raw_rx_frame()
6766 				info->icount.rxabort++;  in mgsl_get_raw_rx_frame()
6768 				info->icount.rxover++;  in mgsl_get_raw_rx_frame()
6770 				info->icount.rxcrc++;  in mgsl_get_raw_rx_frame()
6808 				if ( info->rx_buffer_list[CurrentIndex].rcc )  in mgsl_get_raw_rx_frame()
6809 					framesize = RCLRVALUE - info->rx_buffer_list[CurrentIndex].rcc;  in mgsl_get_raw_rx_frame()
6830 				__FILE__,__LINE__,info->device_name,status,framesize);  in mgsl_get_raw_rx_frame()
6833 			mgsl_trace_block(info,info->rx_buffer_list[CurrentIndex].virt_addr,  in mgsl_get_raw_rx_frame()
6840 			pBufEntry = &(info->rx_buffer_list[CurrentIndex]);  in mgsl_get_raw_rx_frame()
6841 			memcpy( info->intermediate_rxbuffer, pBufEntry->virt_addr, framesize);  in mgsl_get_raw_rx_frame()
6842 			info->icount.rxok++;  in mgsl_get_raw_rx_frame()
6844 			ldisc_receive_buf(tty, info->intermediate_rxbuffer, info->flag_buf, framesize);  in mgsl_get_raw_rx_frame()
6848 		mgsl_free_rx_frame_buffers( info, CurrentIndex, CurrentIndex );  in mgsl_get_raw_rx_frame()
6854 	if ( info->rx_enabled && info->rx_overflow ) {  in mgsl_get_raw_rx_frame()
6860 		if ( !info->rx_buffer_list[CurrentIndex].status &&  in mgsl_get_raw_rx_frame()
6861 			info->rx_buffer_list[CurrentIndex].count ) {  in mgsl_get_raw_rx_frame()
6862 			spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_get_raw_rx_frame()
6863 			usc_start_receiver(info);  in mgsl_get_raw_rx_frame()
6864 			spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_get_raw_rx_frame()
6884 static void mgsl_load_tx_dma_buffer(struct mgsl_struct *info,  in mgsl_load_tx_dma_buffer()  argument
6892 		mgsl_trace_block(info,Buffer, min_t(int, BufferSize, DMABUFFERSIZE), 1);  in mgsl_load_tx_dma_buffer()
6894 	if (info->params.flags & HDLC_FLAG_HDLC_LOOPMODE) {  in mgsl_load_tx_dma_buffer()
6898 	 	info->cmr_value |= BIT13;  in mgsl_load_tx_dma_buffer()
6905 	i = info->current_tx_buffer;  in mgsl_load_tx_dma_buffer()
6906 	info->start_tx_dma_buffer = i;  in mgsl_load_tx_dma_buffer()
6911 	info->tx_buffer_list[i].status = info->cmr_value & 0xf000;  in mgsl_load_tx_dma_buffer()
6912 	info->tx_buffer_list[i].rcc    = BufferSize;  in mgsl_load_tx_dma_buffer()
6913 	info->tx_buffer_list[i].count  = BufferSize;  in mgsl_load_tx_dma_buffer()
6920 		pBufEntry = &info->tx_buffer_list[i++];  in mgsl_load_tx_dma_buffer()
6922 		if ( i == info->tx_buffer_count )  in mgsl_load_tx_dma_buffer()
6934 		if ( info->bus_type == MGSL_BUS_TYPE_PCI )  in mgsl_load_tx_dma_buffer()
6945 		++info->tx_dma_buffers_used;  in mgsl_load_tx_dma_buffer()
6949 	info->current_tx_buffer = i;  in mgsl_load_tx_dma_buffer()
6961 static bool mgsl_register_test( struct mgsl_struct *info )  in mgsl_register_test()  argument
6970 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_register_test()
6971 	usc_reset(info);  in mgsl_register_test()
6975 	if ( (usc_InReg( info, SICR ) != 0) ||  in mgsl_register_test()
6976 		  (usc_InReg( info, IVR  ) != 0) ||  in mgsl_register_test()
6977 		  (usc_InDmaReg( info, DIVR ) != 0) ){  in mgsl_register_test()
6986 			usc_OutReg( info, TC0R, BitPatterns[i] );  in mgsl_register_test()
6987 			usc_OutReg( info, TC1R, BitPatterns[(i+1)%Patterncount] );  in mgsl_register_test()
6988 			usc_OutReg( info, TCLR, BitPatterns[(i+2)%Patterncount] );  in mgsl_register_test()
6989 			usc_OutReg( info, RCLR, BitPatterns[(i+3)%Patterncount] );  in mgsl_register_test()
6990 			usc_OutReg( info, RSR,  BitPatterns[(i+4)%Patterncount] );  in mgsl_register_test()
6991 			usc_OutDmaReg( info, TBCR, BitPatterns[(i+5)%Patterncount] );  in mgsl_register_test()
6993 			if ( (usc_InReg( info, TC0R ) != BitPatterns[i]) ||  in mgsl_register_test()
6994 				  (usc_InReg( info, TC1R ) != BitPatterns[(i+1)%Patterncount]) ||  in mgsl_register_test()
6995 				  (usc_InReg( info, TCLR ) != BitPatterns[(i+2)%Patterncount]) ||  in mgsl_register_test()
6996 				  (usc_InReg( info, RCLR ) != BitPatterns[(i+3)%Patterncount]) ||  in mgsl_register_test()
6997 				  (usc_InReg( info, RSR )  != BitPatterns[(i+4)%Patterncount]) ||  in mgsl_register_test()
6998 				  (usc_InDmaReg( info, TBCR ) != BitPatterns[(i+5)%Patterncount]) ){  in mgsl_register_test()
7005 	usc_reset(info);  in mgsl_register_test()
7006 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_register_test()
7017 static bool mgsl_irq_test( struct mgsl_struct *info )  in mgsl_irq_test()  argument
7022 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_irq_test()
7023 	usc_reset(info);  in mgsl_irq_test()
7030 	info->irq_occurred = false;  in mgsl_irq_test()
7036 	usc_OutReg( info, PCR, (unsigned short)((usc_InReg(info, PCR) | BIT13) & ~BIT12) );  in mgsl_irq_test()
7038 	usc_EnableMasterIrqBit(info);  in mgsl_irq_test()
7039 	usc_EnableInterrupts(info, IO_PIN);  in mgsl_irq_test()
7040 	usc_ClearIrqPendingBits(info, IO_PIN);  in mgsl_irq_test()
7042 	usc_UnlatchIostatusBits(info, MISCSTATUS_TXC_LATCHED);  in mgsl_irq_test()
7043 	usc_EnableStatusIrqs(info, SICR_TXC_ACTIVE + SICR_TXC_INACTIVE);  in mgsl_irq_test()
7045 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_irq_test()
7048 	while( EndTime-- && !info->irq_occurred ) {  in mgsl_irq_test()
7052 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_irq_test()
7053 	usc_reset(info);  in mgsl_irq_test()
7054 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_irq_test()
7056 	return info->irq_occurred;  in mgsl_irq_test()
7069 static bool mgsl_dma_test( struct mgsl_struct *info )  in mgsl_dma_test()  argument
7083 	memcpy(&tmp_params,&info->params,sizeof(MGSL_PARAMS));  in mgsl_dma_test()
7085 	memcpy(&info->params,&default_params,sizeof(MGSL_PARAMS));  in mgsl_dma_test()
7089 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_dma_test()
7093 	usc_reset(info);  in mgsl_dma_test()
7094 	usc_set_sdlc_mode(info);  in mgsl_dma_test()
7095 	usc_enable_loopback(info,1);  in mgsl_dma_test()
7117 	usc_OutDmaReg( info, RDMR, 0xe200 );  in mgsl_dma_test()
7119 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_dma_test()
7129 	info->tx_buffer_list[0].count  = FrameSize;  in mgsl_dma_test()
7130 	info->tx_buffer_list[0].rcc    = FrameSize;  in mgsl_dma_test()
7131 	info->tx_buffer_list[0].status = 0x4000;  in mgsl_dma_test()
7135 	TmpPtr = info->tx_buffer_list[0].virt_addr;  in mgsl_dma_test()
7142 	info->rx_buffer_list[0].status = 0;  in mgsl_dma_test()
7143 	info->rx_buffer_list[0].count = FrameSize + 4;  in mgsl_dma_test()
7147 	memset( info->rx_buffer_list[0].virt_addr, 0, FrameSize + 4 );  in mgsl_dma_test()
7152 	info->tx_buffer_list[1].count = 0;  in mgsl_dma_test()
7153 	info->rx_buffer_list[1].count = 0;  in mgsl_dma_test()
7160 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_dma_test()
7163 	usc_RTCmd( info, RTCmd_PurgeRxFifo );  in mgsl_dma_test()
7166 	phys_addr = info->rx_buffer_list[0].phys_entry;  in mgsl_dma_test()
7167 	usc_OutDmaReg( info, NRARL, (unsigned short)phys_addr );  in mgsl_dma_test()
7168 	usc_OutDmaReg( info, NRARU, (unsigned short)(phys_addr >> 16) );  in mgsl_dma_test()
7171 	usc_InDmaReg( info, RDMR );  in mgsl_dma_test()
7172 	usc_DmaCmd( info, DmaCmd_InitRxChannel );  in mgsl_dma_test()
7175 	usc_OutReg( info, RMR, (unsigned short)((usc_InReg(info, RMR) & 0xfffc) | 0x0002) );  in mgsl_dma_test()
7177 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_dma_test()
7193 		spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_dma_test()
7194 		status = usc_InDmaReg( info, RDMR );  in mgsl_dma_test()
7195 		spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_dma_test()
7210 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_dma_test()
7215 	usc_OutReg( info, TCLR, (unsigned short)info->tx_buffer_list[0].count );  in mgsl_dma_test()
7216 	usc_RTCmd( info, RTCmd_PurgeTxFifo );  in mgsl_dma_test()
7220 	phys_addr = info->tx_buffer_list[0].phys_entry;  in mgsl_dma_test()
7221 	usc_OutDmaReg( info, NTARL, (unsigned short)phys_addr );  in mgsl_dma_test()
7222 	usc_OutDmaReg( info, NTARU, (unsigned short)(phys_addr >> 16) );  in mgsl_dma_test()
7226 	usc_OutReg( info, TCSR, (unsigned short)(( usc_InReg(info, TCSR) & 0x0f00) | 0xfa) );  in mgsl_dma_test()
7227 	usc_DmaCmd( info, DmaCmd_InitTxChannel );  in mgsl_dma_test()
7231 	usc_TCmd( info, TCmd_SelectTicrTxFifostatus );  in mgsl_dma_test()
7233 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_dma_test()
7249 		spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_dma_test()
7250 		FifoLevel = usc_InReg(info, TICR) >> 8;  in mgsl_dma_test()
7251 		spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_dma_test()
7269 		spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_dma_test()
7272 		usc_TCmd( info, TCmd_SendFrame );  in mgsl_dma_test()
7273 		usc_OutReg( info, TMR, (unsigned short)((usc_InReg(info, TMR) & 0xfffc) | 0x0002) );  in mgsl_dma_test()
7275 		spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_dma_test()
7287 		spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_dma_test()
7288 		status = usc_InReg( info, TCSR );  in mgsl_dma_test()
7289 		spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_dma_test()
7297 			spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_dma_test()
7298 			status = usc_InReg( info, TCSR );  in mgsl_dma_test()
7299 			spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_dma_test()
7317 		status=info->rx_buffer_list[0].status;  in mgsl_dma_test()
7323 			status=info->rx_buffer_list[0].status;  in mgsl_dma_test()
7330 		status = info->rx_buffer_list[0].status;  in mgsl_dma_test()
7336 			if ( memcmp( info->tx_buffer_list[0].virt_addr ,  in mgsl_dma_test()
7337 				info->rx_buffer_list[0].virt_addr, FrameSize ) ){  in mgsl_dma_test()
7343 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_dma_test()
7344 	usc_reset( info );  in mgsl_dma_test()
7345 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_dma_test()
7348 	memcpy(&info->params,&tmp_params,sizeof(MGSL_PARAMS));  in mgsl_dma_test()
7361 static int mgsl_adapter_test( struct mgsl_struct *info )  in mgsl_adapter_test()  argument
7365 			__FILE__,__LINE__,info->device_name );  in mgsl_adapter_test()
7367 	if ( !mgsl_register_test( info ) ) {  in mgsl_adapter_test()
7368 		info->init_error = DiagStatus_AddressFailure;  in mgsl_adapter_test()
7370 			__FILE__,__LINE__,info->device_name, (unsigned short)(info->io_base) );  in mgsl_adapter_test()
7374 	if ( !mgsl_irq_test( info ) ) {  in mgsl_adapter_test()
7375 		info->init_error = DiagStatus_IrqFailure;  in mgsl_adapter_test()
7377 			__FILE__,__LINE__,info->device_name, (unsigned short)(info->irq_level) );  in mgsl_adapter_test()
7381 	if ( !mgsl_dma_test( info ) ) {  in mgsl_adapter_test()
7382 		info->init_error = DiagStatus_DmaFailure;  in mgsl_adapter_test()
7384 			__FILE__,__LINE__,info->device_name, (unsigned short)(info->dma_level) );  in mgsl_adapter_test()
7390 			__FILE__,__LINE__,info->device_name );  in mgsl_adapter_test()
7403 static bool mgsl_memory_test( struct mgsl_struct *info )  in mgsl_memory_test()  argument
7412 	if ( info->bus_type != MGSL_BUS_TYPE_PCI )  in mgsl_memory_test()
7415 	TestAddr = (unsigned long *)info->memory_base;  in mgsl_memory_test()
7433 	TestAddr = (unsigned long *)info->memory_base;  in mgsl_memory_test()
7441 	memset( info->memory_base, 0, SHARED_MEM_ADDRESS_SIZE );  in mgsl_memory_test()
7506 static void mgsl_trace_block(struct mgsl_struct *info,const char* data, int count, int xmit)  in mgsl_trace_block()  argument
7511 		printk("%s tx data:\n",info->device_name);  in mgsl_trace_block()
7513 		printk("%s rx data:\n",info->device_name);  in mgsl_trace_block()
7548 	struct mgsl_struct *info = (struct mgsl_struct*)context;  in mgsl_tx_timeout()  local
7553 			__FILE__,__LINE__,info->device_name);  in mgsl_tx_timeout()
7554 	if(info->tx_active &&  in mgsl_tx_timeout()
7555 	   (info->params.mode == MGSL_MODE_HDLC ||  in mgsl_tx_timeout()
7556 	    info->params.mode == MGSL_MODE_RAW) ) {  in mgsl_tx_timeout()
7557 		info->icount.txtimeout++;  in mgsl_tx_timeout()
7559 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_tx_timeout()
7560 	info->tx_active = false;  in mgsl_tx_timeout()
7561 	info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;  in mgsl_tx_timeout()
7563 	if ( info->params.flags & HDLC_FLAG_HDLC_LOOPMODE )  in mgsl_tx_timeout()
7564 		usc_loopmode_cancel_transmit( info );  in mgsl_tx_timeout()
7566 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_tx_timeout()
7569 	if (info->netcount)  in mgsl_tx_timeout()
7570 		hdlcdev_tx_done(info);  in mgsl_tx_timeout()
7573 		mgsl_bh_transmit(info);  in mgsl_tx_timeout()
7581 static int mgsl_loopmode_send_done( struct mgsl_struct * info )  in mgsl_loopmode_send_done()  argument
7585 	spin_lock_irqsave(&info->irq_spinlock,flags);  in mgsl_loopmode_send_done()
7586 	if (info->params.flags & HDLC_FLAG_HDLC_LOOPMODE) {  in mgsl_loopmode_send_done()
7587 		if (info->tx_active)  in mgsl_loopmode_send_done()
7588 			info->loopmode_send_done_requested = true;  in mgsl_loopmode_send_done()
7590 			usc_loopmode_send_done(info);  in mgsl_loopmode_send_done()
7592 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in mgsl_loopmode_send_done()
7600 static void usc_loopmode_send_done( struct mgsl_struct * info )  in usc_loopmode_send_done()  argument
7602  	info->loopmode_send_done_requested = false;  in usc_loopmode_send_done()
7604  	info->cmr_value &= ~BIT13;  in usc_loopmode_send_done()
7605  	usc_OutReg(info, CMR, info->cmr_value);  in usc_loopmode_send_done()
7610 static void usc_loopmode_cancel_transmit( struct mgsl_struct * info )  in usc_loopmode_cancel_transmit()  argument
7613  	usc_RTCmd( info, RTCmd_PurgeTxFifo );  in usc_loopmode_cancel_transmit()
7614  	usc_DmaCmd( info, DmaCmd_ResetTxChannel );  in usc_loopmode_cancel_transmit()
7615   	usc_loopmode_send_done( info );  in usc_loopmode_cancel_transmit()
7622 static void usc_loopmode_insert_request( struct mgsl_struct * info )  in usc_loopmode_insert_request()  argument
7624  	info->loopmode_insert_requested = true;  in usc_loopmode_insert_request()
7629  	usc_OutReg( info, RICR,   in usc_loopmode_insert_request()
7630 		(usc_InReg( info, RICR ) | RXSTATUS_ABORT_RECEIVED ) );  in usc_loopmode_insert_request()
7633 	info->cmr_value |= BIT13;  in usc_loopmode_insert_request()
7634  	usc_OutReg(info, CMR, info->cmr_value);  in usc_loopmode_insert_request()
7639 static int usc_loopmode_active( struct mgsl_struct * info)  in usc_loopmode_active()  argument
7641  	return usc_InReg( info, CCSR ) & BIT7 ? 1 : 0 ;  in usc_loopmode_active()
7659 	struct mgsl_struct *info = dev_to_port(dev);  in hdlcdev_attach()  local
7664 	if (info->port.count)  in hdlcdev_attach()
7685 	info->params.encoding = new_encoding;  in hdlcdev_attach()
7686 	info->params.crc_type = new_crctype;  in hdlcdev_attach()
7689 	if (info->netcount)  in hdlcdev_attach()
7690 		mgsl_program_hw(info);  in hdlcdev_attach()
7704 	struct mgsl_struct *info = dev_to_port(dev);  in hdlcdev_xmit()  local
7714 	info->xmit_cnt = skb->len;  in hdlcdev_xmit()
7715 	mgsl_load_tx_dma_buffer(info, skb->data, skb->len);  in hdlcdev_xmit()
7728 	spin_lock_irqsave(&info->irq_spinlock,flags);  in hdlcdev_xmit()
7729 	if (!info->tx_active)  in hdlcdev_xmit()
7730 	 	usc_start_transmitter(info);  in hdlcdev_xmit()
7731 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in hdlcdev_xmit()
7746 	struct mgsl_struct *info = dev_to_port(dev);  in hdlcdev_open()  local
7758 	spin_lock_irqsave(&info->netlock, flags);  in hdlcdev_open()
7759 	if (info->port.count != 0 || info->netcount != 0) {  in hdlcdev_open()
7761 		spin_unlock_irqrestore(&info->netlock, flags);  in hdlcdev_open()
7764 	info->netcount=1;  in hdlcdev_open()
7765 	spin_unlock_irqrestore(&info->netlock, flags);  in hdlcdev_open()
7768 	if ((rc = startup(info)) != 0) {  in hdlcdev_open()
7769 		spin_lock_irqsave(&info->netlock, flags);  in hdlcdev_open()
7770 		info->netcount=0;  in hdlcdev_open()
7771 		spin_unlock_irqrestore(&info->netlock, flags);  in hdlcdev_open()
7776 	info->serial_signals |= SerialSignal_RTS | SerialSignal_DTR;  in hdlcdev_open()
7777 	mgsl_program_hw(info);  in hdlcdev_open()
7784 	spin_lock_irqsave(&info->irq_spinlock, flags);  in hdlcdev_open()
7785 	usc_get_serial_signals(info);  in hdlcdev_open()
7786 	spin_unlock_irqrestore(&info->irq_spinlock, flags);  in hdlcdev_open()
7787 	if (info->serial_signals & SerialSignal_DCD)  in hdlcdev_open()
7804 	struct mgsl_struct *info = dev_to_port(dev);  in hdlcdev_close()  local
7813 	shutdown(info);  in hdlcdev_close()
7817 	spin_lock_irqsave(&info->netlock, flags);  in hdlcdev_close()
7818 	info->netcount=0;  in hdlcdev_close()
7819 	spin_unlock_irqrestore(&info->netlock, flags);  in hdlcdev_close()
7838 	struct mgsl_struct *info = dev_to_port(dev);  in hdlcdev_ioctl()  local
7845 	if (info->port.count)  in hdlcdev_ioctl()
7860 		flags = info->params.flags & (HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |  in hdlcdev_ioctl()
7874 		new_line.clock_rate = info->params.clock_speed;  in hdlcdev_ioctl()
7875 		new_line.loopback   = info->params.loopback ? 1:0;  in hdlcdev_ioctl()
7894 		case CLOCK_DEFAULT:  flags = info->params.flags &  in hdlcdev_ioctl()
7905 		info->params.flags &= ~(HDLC_FLAG_RXC_RXCPIN | HDLC_FLAG_RXC_DPLL |  in hdlcdev_ioctl()
7909 		info->params.flags |= flags;  in hdlcdev_ioctl()
7911 		info->params.loopback = new_line.loopback;  in hdlcdev_ioctl()
7914 			info->params.clock_speed = new_line.clock_rate;  in hdlcdev_ioctl()
7916 			info->params.clock_speed = 0;  in hdlcdev_ioctl()
7919 		if (info->netcount)  in hdlcdev_ioctl()
7920 			mgsl_program_hw(info);  in hdlcdev_ioctl()
7935 	struct mgsl_struct *info = dev_to_port(dev);  in hdlcdev_tx_timeout()  local
7944 	spin_lock_irqsave(&info->irq_spinlock,flags);  in hdlcdev_tx_timeout()
7945 	usc_stop_transmitter(info);  in hdlcdev_tx_timeout()
7946 	spin_unlock_irqrestore(&info->irq_spinlock,flags);  in hdlcdev_tx_timeout()
7957 static void hdlcdev_tx_done(struct mgsl_struct *info)  in hdlcdev_tx_done()  argument
7959 	if (netif_queue_stopped(info->netdev))  in hdlcdev_tx_done()
7960 		netif_wake_queue(info->netdev);  in hdlcdev_tx_done()
7971 static void hdlcdev_rx(struct mgsl_struct *info, char *buf, int size)  in hdlcdev_rx()  argument
7974 	struct net_device *dev = info->netdev;  in hdlcdev_rx()
8013 static int hdlcdev_init(struct mgsl_struct *info)  in hdlcdev_init()  argument
8021 	if (!(dev = alloc_hdlcdev(info))) {  in hdlcdev_init()
8027 	dev->base_addr = info->io_base;  in hdlcdev_init()
8028 	dev->irq       = info->irq_level;  in hdlcdev_init()
8029 	dev->dma       = info->dma_level;  in hdlcdev_init()
8048 	info->netdev = dev;  in hdlcdev_init()
8058 static void hdlcdev_exit(struct mgsl_struct *info)  in hdlcdev_exit()  argument
8060 	unregister_hdlc_device(info->netdev);  in hdlcdev_exit()
8061 	free_netdev(info->netdev);  in hdlcdev_exit()
8062 	info->netdev = NULL;  in hdlcdev_exit()
8071 	struct mgsl_struct *info;  in synclink_init_one()  local
8078 	if (!(info = mgsl_allocate_device())) {  in synclink_init_one()
8085 	info->io_base = pci_resource_start(dev, 2);  in synclink_init_one()
8086 	info->irq_level = dev->irq;  in synclink_init_one()
8087 	info->phys_memory_base = pci_resource_start(dev, 3);  in synclink_init_one()
8093 	info->phys_lcr_base = pci_resource_start(dev, 0);  in synclink_init_one()
8094 	info->lcr_offset    = info->phys_lcr_base & (PAGE_SIZE-1);  in synclink_init_one()
8095 	info->phys_lcr_base &= ~(PAGE_SIZE-1);  in synclink_init_one()
8097 	info->bus_type = MGSL_BUS_TYPE_PCI;  in synclink_init_one()
8098 	info->io_addr_size = 8;  in synclink_init_one()
8099 	info->irq_flags = IRQF_SHARED;  in synclink_init_one()
8103 		info->misc_ctrl_value = 0x007c4080;  in synclink_init_one()
8104 		info->hw_version = 1;  in synclink_init_one()
8111 		info->misc_ctrl_value = 0x087e4546;  in synclink_init_one()
8112 		info->hw_version = 0;  in synclink_init_one()
8115 	mgsl_add_device(info);  in synclink_init_one()