Lines Matching refs:ch
35 static void neo_set_cts_flow_control(struct jsm_channel *ch) in neo_set_cts_flow_control() argument
38 ier = readb(&ch->ch_neo_uart->ier); in neo_set_cts_flow_control()
39 efr = readb(&ch->ch_neo_uart->efr); in neo_set_cts_flow_control()
41 jsm_dbg(PARAM, &ch->ch_bd->pci_dev, "Setting CTSFLOW\n"); in neo_set_cts_flow_control()
51 writeb(0, &ch->ch_neo_uart->efr); in neo_set_cts_flow_control()
54 writeb(efr, &ch->ch_neo_uart->efr); in neo_set_cts_flow_control()
57 writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY), &ch->ch_neo_uart->fctr); in neo_set_cts_flow_control()
60 writeb(8, &ch->ch_neo_uart->tfifo); in neo_set_cts_flow_control()
61 ch->ch_t_tlevel = 8; in neo_set_cts_flow_control()
63 writeb(ier, &ch->ch_neo_uart->ier); in neo_set_cts_flow_control()
66 static void neo_set_rts_flow_control(struct jsm_channel *ch) in neo_set_rts_flow_control() argument
69 ier = readb(&ch->ch_neo_uart->ier); in neo_set_rts_flow_control()
70 efr = readb(&ch->ch_neo_uart->efr); in neo_set_rts_flow_control()
72 jsm_dbg(PARAM, &ch->ch_bd->pci_dev, "Setting RTSFLOW\n"); in neo_set_rts_flow_control()
83 writeb(0, &ch->ch_neo_uart->efr); in neo_set_rts_flow_control()
86 writeb(efr, &ch->ch_neo_uart->efr); in neo_set_rts_flow_control()
88 writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY), &ch->ch_neo_uart->fctr); in neo_set_rts_flow_control()
89 ch->ch_r_watermark = 4; in neo_set_rts_flow_control()
91 writeb(56, &ch->ch_neo_uart->rfifo); in neo_set_rts_flow_control()
92 ch->ch_r_tlevel = 56; in neo_set_rts_flow_control()
94 writeb(ier, &ch->ch_neo_uart->ier); in neo_set_rts_flow_control()
102 ch->ch_mostat |= (UART_MCR_RTS); in neo_set_rts_flow_control()
106 static void neo_set_ixon_flow_control(struct jsm_channel *ch) in neo_set_ixon_flow_control() argument
109 ier = readb(&ch->ch_neo_uart->ier); in neo_set_ixon_flow_control()
110 efr = readb(&ch->ch_neo_uart->efr); in neo_set_ixon_flow_control()
112 jsm_dbg(PARAM, &ch->ch_bd->pci_dev, "Setting IXON FLOW\n"); in neo_set_ixon_flow_control()
122 writeb(0, &ch->ch_neo_uart->efr); in neo_set_ixon_flow_control()
125 writeb(efr, &ch->ch_neo_uart->efr); in neo_set_ixon_flow_control()
127 writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), &ch->ch_neo_uart->fctr); in neo_set_ixon_flow_control()
128 ch->ch_r_watermark = 4; in neo_set_ixon_flow_control()
130 writeb(32, &ch->ch_neo_uart->rfifo); in neo_set_ixon_flow_control()
131 ch->ch_r_tlevel = 32; in neo_set_ixon_flow_control()
134 writeb(ch->ch_startc, &ch->ch_neo_uart->xonchar1); in neo_set_ixon_flow_control()
135 writeb(0, &ch->ch_neo_uart->xonchar2); in neo_set_ixon_flow_control()
137 writeb(ch->ch_stopc, &ch->ch_neo_uart->xoffchar1); in neo_set_ixon_flow_control()
138 writeb(0, &ch->ch_neo_uart->xoffchar2); in neo_set_ixon_flow_control()
140 writeb(ier, &ch->ch_neo_uart->ier); in neo_set_ixon_flow_control()
143 static void neo_set_ixoff_flow_control(struct jsm_channel *ch) in neo_set_ixoff_flow_control() argument
146 ier = readb(&ch->ch_neo_uart->ier); in neo_set_ixoff_flow_control()
147 efr = readb(&ch->ch_neo_uart->efr); in neo_set_ixoff_flow_control()
149 jsm_dbg(PARAM, &ch->ch_bd->pci_dev, "Setting IXOFF FLOW\n"); in neo_set_ixoff_flow_control()
160 writeb(0, &ch->ch_neo_uart->efr); in neo_set_ixoff_flow_control()
163 writeb(efr, &ch->ch_neo_uart->efr); in neo_set_ixoff_flow_control()
166 writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), &ch->ch_neo_uart->fctr); in neo_set_ixoff_flow_control()
168 writeb(8, &ch->ch_neo_uart->tfifo); in neo_set_ixoff_flow_control()
169 ch->ch_t_tlevel = 8; in neo_set_ixoff_flow_control()
172 writeb(ch->ch_startc, &ch->ch_neo_uart->xonchar1); in neo_set_ixoff_flow_control()
173 writeb(0, &ch->ch_neo_uart->xonchar2); in neo_set_ixoff_flow_control()
175 writeb(ch->ch_stopc, &ch->ch_neo_uart->xoffchar1); in neo_set_ixoff_flow_control()
176 writeb(0, &ch->ch_neo_uart->xoffchar2); in neo_set_ixoff_flow_control()
178 writeb(ier, &ch->ch_neo_uart->ier); in neo_set_ixoff_flow_control()
181 static void neo_set_no_input_flow_control(struct jsm_channel *ch) in neo_set_no_input_flow_control() argument
184 ier = readb(&ch->ch_neo_uart->ier); in neo_set_no_input_flow_control()
185 efr = readb(&ch->ch_neo_uart->efr); in neo_set_no_input_flow_control()
187 jsm_dbg(PARAM, &ch->ch_bd->pci_dev, "Unsetting Input FLOW\n"); in neo_set_no_input_flow_control()
195 if (ch->ch_c_iflag & IXON) in neo_set_no_input_flow_control()
201 writeb(0, &ch->ch_neo_uart->efr); in neo_set_no_input_flow_control()
204 writeb(efr, &ch->ch_neo_uart->efr); in neo_set_no_input_flow_control()
207 writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), &ch->ch_neo_uart->fctr); in neo_set_no_input_flow_control()
209 ch->ch_r_watermark = 0; in neo_set_no_input_flow_control()
211 writeb(16, &ch->ch_neo_uart->tfifo); in neo_set_no_input_flow_control()
212 ch->ch_t_tlevel = 16; in neo_set_no_input_flow_control()
214 writeb(16, &ch->ch_neo_uart->rfifo); in neo_set_no_input_flow_control()
215 ch->ch_r_tlevel = 16; in neo_set_no_input_flow_control()
217 writeb(ier, &ch->ch_neo_uart->ier); in neo_set_no_input_flow_control()
220 static void neo_set_no_output_flow_control(struct jsm_channel *ch) in neo_set_no_output_flow_control() argument
223 ier = readb(&ch->ch_neo_uart->ier); in neo_set_no_output_flow_control()
224 efr = readb(&ch->ch_neo_uart->efr); in neo_set_no_output_flow_control()
226 jsm_dbg(PARAM, &ch->ch_bd->pci_dev, "Unsetting Output FLOW\n"); in neo_set_no_output_flow_control()
233 if (ch->ch_c_iflag & IXOFF) in neo_set_no_output_flow_control()
239 writeb(0, &ch->ch_neo_uart->efr); in neo_set_no_output_flow_control()
242 writeb(efr, &ch->ch_neo_uart->efr); in neo_set_no_output_flow_control()
245 writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), &ch->ch_neo_uart->fctr); in neo_set_no_output_flow_control()
247 ch->ch_r_watermark = 0; in neo_set_no_output_flow_control()
249 writeb(16, &ch->ch_neo_uart->tfifo); in neo_set_no_output_flow_control()
250 ch->ch_t_tlevel = 16; in neo_set_no_output_flow_control()
252 writeb(16, &ch->ch_neo_uart->rfifo); in neo_set_no_output_flow_control()
253 ch->ch_r_tlevel = 16; in neo_set_no_output_flow_control()
255 writeb(ier, &ch->ch_neo_uart->ier); in neo_set_no_output_flow_control()
258 static inline void neo_set_new_start_stop_chars(struct jsm_channel *ch) in neo_set_new_start_stop_chars() argument
262 if (ch->ch_c_cflag & CRTSCTS) in neo_set_new_start_stop_chars()
265 jsm_dbg(PARAM, &ch->ch_bd->pci_dev, "start\n"); in neo_set_new_start_stop_chars()
268 writeb(ch->ch_startc, &ch->ch_neo_uart->xonchar1); in neo_set_new_start_stop_chars()
269 writeb(0, &ch->ch_neo_uart->xonchar2); in neo_set_new_start_stop_chars()
271 writeb(ch->ch_stopc, &ch->ch_neo_uart->xoffchar1); in neo_set_new_start_stop_chars()
272 writeb(0, &ch->ch_neo_uart->xoffchar2); in neo_set_new_start_stop_chars()
275 static void neo_copy_data_from_uart_to_queue(struct jsm_channel *ch) in neo_copy_data_from_uart_to_queue() argument
286 head = ch->ch_r_head & RQUEUEMASK; in neo_copy_data_from_uart_to_queue()
287 tail = ch->ch_r_tail & RQUEUEMASK; in neo_copy_data_from_uart_to_queue()
290 linestatus = ch->ch_cached_lsr; in neo_copy_data_from_uart_to_queue()
291 ch->ch_cached_lsr = 0; in neo_copy_data_from_uart_to_queue()
304 if (!(ch->ch_flags & CH_FIFO_ENABLED)) in neo_copy_data_from_uart_to_queue()
307 total = readb(&ch->ch_neo_uart->rfifo); in neo_copy_data_from_uart_to_queue()
333 linestatus = readb(&ch->ch_neo_uart->lsr); in neo_copy_data_from_uart_to_queue()
360 ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); in neo_copy_data_from_uart_to_queue()
365 memcpy_fromio(ch->ch_rqueue + head, &ch->ch_neo_uart->txrxburst, n); in neo_copy_data_from_uart_to_queue()
371 memset(ch->ch_equeue + head, 0, n); in neo_copy_data_from_uart_to_queue()
377 ch->ch_rxcount += n; in neo_copy_data_from_uart_to_queue()
384 if (ch->ch_c_iflag & IGNBRK) in neo_copy_data_from_uart_to_queue()
397 linestatus |= readb(&ch->ch_neo_uart->lsr); in neo_copy_data_from_uart_to_queue()
405 ch->ch_cached_lsr = linestatus; in neo_copy_data_from_uart_to_queue()
419 ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); in neo_copy_data_from_uart_to_queue()
428 memcpy_fromio(&discard, &ch->ch_neo_uart->txrxburst, 1); in neo_copy_data_from_uart_to_queue()
441 jsm_dbg(READ, &ch->ch_bd->pci_dev, in neo_copy_data_from_uart_to_queue()
443 ch->ch_rqueue[tail], ch->ch_equeue[tail]); in neo_copy_data_from_uart_to_queue()
445 ch->ch_r_tail = tail = (tail + 1) & RQUEUEMASK; in neo_copy_data_from_uart_to_queue()
446 ch->ch_err_overrun++; in neo_copy_data_from_uart_to_queue()
450 memcpy_fromio(ch->ch_rqueue + head, &ch->ch_neo_uart->txrxburst, 1); in neo_copy_data_from_uart_to_queue()
451 ch->ch_equeue[head] = (u8) linestatus; in neo_copy_data_from_uart_to_queue()
453 jsm_dbg(READ, &ch->ch_bd->pci_dev, "DATA/LSR pair: %x %x\n", in neo_copy_data_from_uart_to_queue()
454 ch->ch_rqueue[head], ch->ch_equeue[head]); in neo_copy_data_from_uart_to_queue()
463 ch->ch_rxcount++; in neo_copy_data_from_uart_to_queue()
469 ch->ch_r_head = head & RQUEUEMASK; in neo_copy_data_from_uart_to_queue()
470 ch->ch_e_head = head & EQUEUEMASK; in neo_copy_data_from_uart_to_queue()
471 jsm_input(ch); in neo_copy_data_from_uart_to_queue()
474 static void neo_copy_data_from_queue_to_uart(struct jsm_channel *ch) in neo_copy_data_from_queue_to_uart() argument
484 if (!ch) in neo_copy_data_from_queue_to_uart()
487 circ = &ch->uart_port.state->xmit; in neo_copy_data_from_queue_to_uart()
494 if ((ch->ch_flags & CH_STOP) || (ch->ch_flags & CH_BREAK_SENDING)) in neo_copy_data_from_queue_to_uart()
499 if (!(ch->ch_flags & CH_FIFO_ENABLED)) { in neo_copy_data_from_queue_to_uart()
500 u8 lsrbits = readb(&ch->ch_neo_uart->lsr); in neo_copy_data_from_queue_to_uart()
502 ch->ch_cached_lsr |= lsrbits; in neo_copy_data_from_queue_to_uart()
503 if (ch->ch_cached_lsr & UART_LSR_THRE) { in neo_copy_data_from_queue_to_uart()
504 ch->ch_cached_lsr &= ~(UART_LSR_THRE); in neo_copy_data_from_queue_to_uart()
506 writeb(circ->buf[circ->tail], &ch->ch_neo_uart->txrx); in neo_copy_data_from_queue_to_uart()
507 jsm_dbg(WRITE, &ch->ch_bd->pci_dev, in neo_copy_data_from_queue_to_uart()
510 ch->ch_txcount++; in neo_copy_data_from_queue_to_uart()
518 if (!(ch->ch_flags & (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM))) in neo_copy_data_from_queue_to_uart()
521 n = UART_17158_TX_FIFOSIZE - ch->ch_t_tlevel; in neo_copy_data_from_queue_to_uart()
539 memcpy_toio(&ch->ch_neo_uart->txrxburst, circ->buf + tail, s); in neo_copy_data_from_queue_to_uart()
543 ch->ch_txcount += s; in neo_copy_data_from_queue_to_uart()
550 if (len_written >= ch->ch_t_tlevel) in neo_copy_data_from_queue_to_uart()
551 ch->ch_flags &= ~(CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); in neo_copy_data_from_queue_to_uart()
554 uart_write_wakeup(&ch->uart_port); in neo_copy_data_from_queue_to_uart()
557 static void neo_parse_modem(struct jsm_channel *ch, u8 signals) in neo_parse_modem() argument
561 jsm_dbg(MSIGS, &ch->ch_bd->pci_dev, in neo_parse_modem()
563 ch->ch_portnum, msignals); in neo_parse_modem()
570 uart_handle_dcd_change(&ch->uart_port, msignals & UART_MSR_DCD); in neo_parse_modem()
572 uart_handle_cts_change(&ch->uart_port, msignals & UART_MSR_CTS); in neo_parse_modem()
574 ch->ch_mistat |= UART_MSR_DCD; in neo_parse_modem()
576 ch->ch_mistat &= ~UART_MSR_DCD; in neo_parse_modem()
579 ch->ch_mistat |= UART_MSR_DSR; in neo_parse_modem()
581 ch->ch_mistat &= ~UART_MSR_DSR; in neo_parse_modem()
584 ch->ch_mistat |= UART_MSR_RI; in neo_parse_modem()
586 ch->ch_mistat &= ~UART_MSR_RI; in neo_parse_modem()
589 ch->ch_mistat |= UART_MSR_CTS; in neo_parse_modem()
591 ch->ch_mistat &= ~UART_MSR_CTS; in neo_parse_modem()
593 jsm_dbg(MSIGS, &ch->ch_bd->pci_dev, in neo_parse_modem()
595 ch->ch_portnum, in neo_parse_modem()
596 !!((ch->ch_mistat | ch->ch_mostat) & UART_MCR_DTR), in neo_parse_modem()
597 !!((ch->ch_mistat | ch->ch_mostat) & UART_MCR_RTS), in neo_parse_modem()
598 !!((ch->ch_mistat | ch->ch_mostat) & UART_MSR_CTS), in neo_parse_modem()
599 !!((ch->ch_mistat | ch->ch_mostat) & UART_MSR_DSR), in neo_parse_modem()
600 !!((ch->ch_mistat | ch->ch_mostat) & UART_MSR_RI), in neo_parse_modem()
601 !!((ch->ch_mistat | ch->ch_mostat) & UART_MSR_DCD)); in neo_parse_modem()
605 static void neo_assert_modem_signals(struct jsm_channel *ch) in neo_assert_modem_signals() argument
607 if (!ch) in neo_assert_modem_signals()
610 writeb(ch->ch_mostat, &ch->ch_neo_uart->mcr); in neo_assert_modem_signals()
613 neo_pci_posting_flush(ch->ch_bd); in neo_assert_modem_signals()
621 static void neo_flush_uart_write(struct jsm_channel *ch) in neo_flush_uart_write() argument
626 if (!ch) in neo_flush_uart_write()
629 writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_XMIT), &ch->ch_neo_uart->isr_fcr); in neo_flush_uart_write()
634 tmp = readb(&ch->ch_neo_uart->isr_fcr); in neo_flush_uart_write()
636 jsm_dbg(IOCTL, &ch->ch_bd->pci_dev, in neo_flush_uart_write()
644 ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); in neo_flush_uart_write()
653 static void neo_flush_uart_read(struct jsm_channel *ch) in neo_flush_uart_read() argument
658 if (!ch) in neo_flush_uart_read()
661 writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR), &ch->ch_neo_uart->isr_fcr); in neo_flush_uart_read()
666 tmp = readb(&ch->ch_neo_uart->isr_fcr); in neo_flush_uart_read()
668 jsm_dbg(IOCTL, &ch->ch_bd->pci_dev, in neo_flush_uart_read()
680 static void neo_clear_break(struct jsm_channel *ch) in neo_clear_break() argument
684 spin_lock_irqsave(&ch->ch_lock, lock_flags); in neo_clear_break()
687 if (ch->ch_flags & CH_BREAK_SENDING) { in neo_clear_break()
688 u8 temp = readb(&ch->ch_neo_uart->lcr); in neo_clear_break()
689 writeb((temp & ~UART_LCR_SBC), &ch->ch_neo_uart->lcr); in neo_clear_break()
691 ch->ch_flags &= ~(CH_BREAK_SENDING); in neo_clear_break()
692 jsm_dbg(IOCTL, &ch->ch_bd->pci_dev, in neo_clear_break()
697 neo_pci_posting_flush(ch->ch_bd); in neo_clear_break()
699 spin_unlock_irqrestore(&ch->ch_lock, lock_flags); in neo_clear_break()
707 struct jsm_channel *ch; in neo_parse_isr() local
718 ch = brd->channels[port]; in neo_parse_isr()
719 if (!ch) in neo_parse_isr()
725 isr = readb(&ch->ch_neo_uart->isr_fcr); in neo_parse_isr()
736 jsm_dbg(INTR, &ch->ch_bd->pci_dev, "%s:%d isr: %x\n", in neo_parse_isr()
741 neo_copy_data_from_uart_to_queue(ch); in neo_parse_isr()
744 spin_lock_irqsave(&ch->ch_lock, lock_flags); in neo_parse_isr()
745 jsm_check_queue_flow_control(ch); in neo_parse_isr()
746 spin_unlock_irqrestore(&ch->ch_lock, lock_flags); in neo_parse_isr()
751 spin_lock_irqsave(&ch->ch_lock, lock_flags); in neo_parse_isr()
752 ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); in neo_parse_isr()
753 spin_unlock_irqrestore(&ch->ch_lock, lock_flags); in neo_parse_isr()
754 neo_copy_data_from_queue_to_uart(ch); in neo_parse_isr()
758 cause = readb(&ch->ch_neo_uart->xoffchar1); in neo_parse_isr()
760 jsm_dbg(INTR, &ch->ch_bd->pci_dev, in neo_parse_isr()
769 spin_lock_irqsave(&ch->ch_lock, lock_flags); in neo_parse_isr()
773 ch->ch_flags &= ~(CH_STOP); in neo_parse_isr()
775 jsm_dbg(INTR, &ch->ch_bd->pci_dev, in neo_parse_isr()
781 ch->ch_flags |= CH_STOP; in neo_parse_isr()
782 jsm_dbg(INTR, &ch->ch_bd->pci_dev, in neo_parse_isr()
785 jsm_dbg(INTR, &ch->ch_bd->pci_dev, in neo_parse_isr()
789 spin_unlock_irqrestore(&ch->ch_lock, lock_flags); in neo_parse_isr()
797 cause = readb(&ch->ch_neo_uart->mcr); in neo_parse_isr()
800 spin_lock_irqsave(&ch->ch_lock, lock_flags); in neo_parse_isr()
803 ch->ch_mostat |= UART_MCR_RTS; in neo_parse_isr()
805 ch->ch_mostat &= ~(UART_MCR_RTS); in neo_parse_isr()
808 ch->ch_mostat |= UART_MCR_DTR; in neo_parse_isr()
810 ch->ch_mostat &= ~(UART_MCR_DTR); in neo_parse_isr()
812 spin_unlock_irqrestore(&ch->ch_lock, lock_flags); in neo_parse_isr()
816 jsm_dbg(INTR, &ch->ch_bd->pci_dev, in neo_parse_isr()
818 spin_lock_irqsave(&ch->uart_port.lock, lock_flags); in neo_parse_isr()
819 neo_parse_modem(ch, readb(&ch->ch_neo_uart->msr)); in neo_parse_isr()
820 spin_unlock_irqrestore(&ch->uart_port.lock, lock_flags); in neo_parse_isr()
826 struct jsm_channel *ch; in neo_parse_lsr() local
836 ch = brd->channels[port]; in neo_parse_lsr()
837 if (!ch) in neo_parse_lsr()
840 linestatus = readb(&ch->ch_neo_uart->lsr); in neo_parse_lsr()
842 jsm_dbg(INTR, &ch->ch_bd->pci_dev, "%s:%d port: %d linestatus: %x\n", in neo_parse_lsr()
845 ch->ch_cached_lsr |= linestatus; in neo_parse_lsr()
847 if (ch->ch_cached_lsr & UART_LSR_DR) { in neo_parse_lsr()
849 neo_copy_data_from_uart_to_queue(ch); in neo_parse_lsr()
850 spin_lock_irqsave(&ch->ch_lock, lock_flags); in neo_parse_lsr()
851 jsm_check_queue_flow_control(ch); in neo_parse_lsr()
852 spin_unlock_irqrestore(&ch->ch_lock, lock_flags); in neo_parse_lsr()
862 jsm_dbg(INTR, &ch->ch_bd->pci_dev, in neo_parse_lsr()
872 ch->ch_err_parity++; in neo_parse_lsr()
873 jsm_dbg(INTR, &ch->ch_bd->pci_dev, "%s:%d Port: %d. PAR ERR!\n", in neo_parse_lsr()
878 ch->ch_err_frame++; in neo_parse_lsr()
879 jsm_dbg(INTR, &ch->ch_bd->pci_dev, "%s:%d Port: %d. FRM ERR!\n", in neo_parse_lsr()
884 ch->ch_err_break++; in neo_parse_lsr()
885 jsm_dbg(INTR, &ch->ch_bd->pci_dev, in neo_parse_lsr()
897 ch->ch_err_overrun++; in neo_parse_lsr()
898 jsm_dbg(INTR, &ch->ch_bd->pci_dev, in neo_parse_lsr()
904 spin_lock_irqsave(&ch->ch_lock, lock_flags); in neo_parse_lsr()
905 ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); in neo_parse_lsr()
906 spin_unlock_irqrestore(&ch->ch_lock, lock_flags); in neo_parse_lsr()
909 neo_copy_data_from_queue_to_uart(ch); in neo_parse_lsr()
912 spin_lock_irqsave(&ch->ch_lock, lock_flags); in neo_parse_lsr()
913 ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); in neo_parse_lsr()
914 spin_unlock_irqrestore(&ch->ch_lock, lock_flags); in neo_parse_lsr()
917 neo_copy_data_from_queue_to_uart(ch); in neo_parse_lsr()
925 static void neo_param(struct jsm_channel *ch) in neo_param() argument
933 bd = ch->ch_bd; in neo_param()
940 if ((ch->ch_c_cflag & (CBAUD)) == 0) { in neo_param()
941 ch->ch_r_head = ch->ch_r_tail = 0; in neo_param()
942 ch->ch_e_head = ch->ch_e_tail = 0; in neo_param()
944 neo_flush_uart_write(ch); in neo_param()
945 neo_flush_uart_read(ch); in neo_param()
947 ch->ch_flags |= (CH_BAUD0); in neo_param()
948 ch->ch_mostat &= ~(UART_MCR_RTS | UART_MCR_DTR); in neo_param()
949 neo_assert_modem_signals(ch); in neo_param()
980 cflag = C_BAUD(ch->uart_port.state->port.tty); in neo_param()
989 if (ch->ch_flags & CH_BAUD0) in neo_param()
990 ch->ch_flags &= ~(CH_BAUD0); in neo_param()
993 if (ch->ch_c_cflag & PARENB) in neo_param()
996 if (!(ch->ch_c_cflag & PARODD)) in neo_param()
1004 if (ch->ch_c_cflag & CMSPAR) in neo_param()
1008 if (ch->ch_c_cflag & CSTOPB) in neo_param()
1011 switch (ch->ch_c_cflag & CSIZE) { in neo_param()
1027 ier = readb(&ch->ch_neo_uart->ier); in neo_param()
1028 uart_lcr = readb(&ch->ch_neo_uart->lcr); in neo_param()
1030 quot = ch->ch_bd->bd_dividend / baud; in neo_param()
1033 writeb(UART_LCR_DLAB, &ch->ch_neo_uart->lcr); in neo_param()
1034 writeb((quot & 0xff), &ch->ch_neo_uart->txrx); in neo_param()
1035 writeb((quot >> 8), &ch->ch_neo_uart->ier); in neo_param()
1036 writeb(lcr, &ch->ch_neo_uart->lcr); in neo_param()
1040 writeb(lcr, &ch->ch_neo_uart->lcr); in neo_param()
1042 if (ch->ch_c_cflag & CREAD) in neo_param()
1047 writeb(ier, &ch->ch_neo_uart->ier); in neo_param()
1050 neo_set_new_start_stop_chars(ch); in neo_param()
1052 if (ch->ch_c_cflag & CRTSCTS) in neo_param()
1053 neo_set_cts_flow_control(ch); in neo_param()
1054 else if (ch->ch_c_iflag & IXON) { in neo_param()
1056 if ((ch->ch_startc == __DISABLED_CHAR) || (ch->ch_stopc == __DISABLED_CHAR)) in neo_param()
1057 neo_set_no_output_flow_control(ch); in neo_param()
1059 neo_set_ixon_flow_control(ch); in neo_param()
1062 neo_set_no_output_flow_control(ch); in neo_param()
1064 if (ch->ch_c_cflag & CRTSCTS) in neo_param()
1065 neo_set_rts_flow_control(ch); in neo_param()
1066 else if (ch->ch_c_iflag & IXOFF) { in neo_param()
1068 if ((ch->ch_startc == __DISABLED_CHAR) || (ch->ch_stopc == __DISABLED_CHAR)) in neo_param()
1069 neo_set_no_input_flow_control(ch); in neo_param()
1071 neo_set_ixoff_flow_control(ch); in neo_param()
1074 neo_set_no_input_flow_control(ch); in neo_param()
1081 writeb(1, &ch->ch_neo_uart->rfifo); in neo_param()
1082 ch->ch_r_tlevel = 1; in neo_param()
1085 neo_assert_modem_signals(ch); in neo_param()
1088 neo_parse_modem(ch, readb(&ch->ch_neo_uart->msr)); in neo_param()
1100 struct jsm_channel *ch; in neo_intr() local
1176 ch = brd->channels[port]; in neo_intr()
1177 if (!ch) in neo_intr()
1180 neo_copy_data_from_uart_to_queue(ch); in neo_intr()
1183 spin_lock_irqsave(&ch->ch_lock, lock_flags2); in neo_intr()
1184 jsm_check_queue_flow_control(ch); in neo_intr()
1185 spin_unlock_irqrestore(&ch->ch_lock, lock_flags2); in neo_intr()
1244 static void neo_disable_receiver(struct jsm_channel *ch) in neo_disable_receiver() argument
1246 u8 tmp = readb(&ch->ch_neo_uart->ier); in neo_disable_receiver()
1248 writeb(tmp, &ch->ch_neo_uart->ier); in neo_disable_receiver()
1251 neo_pci_posting_flush(ch->ch_bd); in neo_disable_receiver()
1260 static void neo_enable_receiver(struct jsm_channel *ch) in neo_enable_receiver() argument
1262 u8 tmp = readb(&ch->ch_neo_uart->ier); in neo_enable_receiver()
1264 writeb(tmp, &ch->ch_neo_uart->ier); in neo_enable_receiver()
1267 neo_pci_posting_flush(ch->ch_bd); in neo_enable_receiver()
1270 static void neo_send_start_character(struct jsm_channel *ch) in neo_send_start_character() argument
1272 if (!ch) in neo_send_start_character()
1275 if (ch->ch_startc != __DISABLED_CHAR) { in neo_send_start_character()
1276 ch->ch_xon_sends++; in neo_send_start_character()
1277 writeb(ch->ch_startc, &ch->ch_neo_uart->txrx); in neo_send_start_character()
1280 neo_pci_posting_flush(ch->ch_bd); in neo_send_start_character()
1284 static void neo_send_stop_character(struct jsm_channel *ch) in neo_send_stop_character() argument
1286 if (!ch) in neo_send_stop_character()
1289 if (ch->ch_stopc != __DISABLED_CHAR) { in neo_send_stop_character()
1290 ch->ch_xoff_sends++; in neo_send_stop_character()
1291 writeb(ch->ch_stopc, &ch->ch_neo_uart->txrx); in neo_send_stop_character()
1294 neo_pci_posting_flush(ch->ch_bd); in neo_send_stop_character()
1301 static void neo_uart_init(struct jsm_channel *ch) in neo_uart_init() argument
1303 writeb(0, &ch->ch_neo_uart->ier); in neo_uart_init()
1304 writeb(0, &ch->ch_neo_uart->efr); in neo_uart_init()
1305 writeb(UART_EFR_ECB, &ch->ch_neo_uart->efr); in neo_uart_init()
1308 readb(&ch->ch_neo_uart->txrx); in neo_uart_init()
1309 writeb((UART_FCR_ENABLE_FIFO|UART_FCR_CLEAR_RCVR|UART_FCR_CLEAR_XMIT), &ch->ch_neo_uart->isr_fcr); in neo_uart_init()
1310 readb(&ch->ch_neo_uart->lsr); in neo_uart_init()
1311 readb(&ch->ch_neo_uart->msr); in neo_uart_init()
1313 ch->ch_flags |= CH_FIFO_ENABLED; in neo_uart_init()
1316 writeb(ch->ch_mostat, &ch->ch_neo_uart->mcr); in neo_uart_init()
1322 static void neo_uart_off(struct jsm_channel *ch) in neo_uart_off() argument
1325 writeb(0, &ch->ch_neo_uart->efr); in neo_uart_off()
1328 writeb(0, &ch->ch_neo_uart->ier); in neo_uart_off()
1331 static u32 neo_get_uart_bytes_left(struct jsm_channel *ch) in neo_get_uart_bytes_left() argument
1334 u8 lsr = readb(&ch->ch_neo_uart->lsr); in neo_get_uart_bytes_left()
1337 ch->ch_cached_lsr |= lsr; in neo_get_uart_bytes_left()
1343 ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); in neo_get_uart_bytes_left()
1351 static void neo_send_break(struct jsm_channel *ch) in neo_send_break() argument
1360 if (!(ch->ch_flags & CH_BREAK_SENDING)) { in neo_send_break()
1361 u8 temp = readb(&ch->ch_neo_uart->lcr); in neo_send_break()
1362 writeb((temp | UART_LCR_SBC), &ch->ch_neo_uart->lcr); in neo_send_break()
1363 ch->ch_flags |= (CH_BREAK_SENDING); in neo_send_break()
1366 neo_pci_posting_flush(ch->ch_bd); in neo_send_break()
1378 static void neo_send_immediate_char(struct jsm_channel *ch, unsigned char c) in neo_send_immediate_char() argument
1380 if (!ch) in neo_send_immediate_char()
1383 writeb(c, &ch->ch_neo_uart->txrx); in neo_send_immediate_char()
1386 neo_pci_posting_flush(ch->ch_bd); in neo_send_immediate_char()