Lines Matching refs:ch
44 static void neo_set_cts_flow_control(struct jsm_channel *ch) in neo_set_cts_flow_control() argument
47 ier = readb(&ch->ch_neo_uart->ier); in neo_set_cts_flow_control()
48 efr = readb(&ch->ch_neo_uart->efr); in neo_set_cts_flow_control()
50 jsm_dbg(PARAM, &ch->ch_bd->pci_dev, "Setting CTSFLOW\n"); in neo_set_cts_flow_control()
60 writeb(0, &ch->ch_neo_uart->efr); in neo_set_cts_flow_control()
63 writeb(efr, &ch->ch_neo_uart->efr); in neo_set_cts_flow_control()
66 writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY), &ch->ch_neo_uart->fctr); in neo_set_cts_flow_control()
69 writeb(8, &ch->ch_neo_uart->tfifo); in neo_set_cts_flow_control()
70 ch->ch_t_tlevel = 8; in neo_set_cts_flow_control()
72 writeb(ier, &ch->ch_neo_uart->ier); in neo_set_cts_flow_control()
75 static void neo_set_rts_flow_control(struct jsm_channel *ch) in neo_set_rts_flow_control() argument
78 ier = readb(&ch->ch_neo_uart->ier); in neo_set_rts_flow_control()
79 efr = readb(&ch->ch_neo_uart->efr); in neo_set_rts_flow_control()
81 jsm_dbg(PARAM, &ch->ch_bd->pci_dev, "Setting RTSFLOW\n"); in neo_set_rts_flow_control()
92 writeb(0, &ch->ch_neo_uart->efr); in neo_set_rts_flow_control()
95 writeb(efr, &ch->ch_neo_uart->efr); in neo_set_rts_flow_control()
97 writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_4DELAY), &ch->ch_neo_uart->fctr); in neo_set_rts_flow_control()
98 ch->ch_r_watermark = 4; in neo_set_rts_flow_control()
100 writeb(56, &ch->ch_neo_uart->rfifo); in neo_set_rts_flow_control()
101 ch->ch_r_tlevel = 56; in neo_set_rts_flow_control()
103 writeb(ier, &ch->ch_neo_uart->ier); in neo_set_rts_flow_control()
111 ch->ch_mostat |= (UART_MCR_RTS); in neo_set_rts_flow_control()
115 static void neo_set_ixon_flow_control(struct jsm_channel *ch) in neo_set_ixon_flow_control() argument
118 ier = readb(&ch->ch_neo_uart->ier); in neo_set_ixon_flow_control()
119 efr = readb(&ch->ch_neo_uart->efr); in neo_set_ixon_flow_control()
121 jsm_dbg(PARAM, &ch->ch_bd->pci_dev, "Setting IXON FLOW\n"); in neo_set_ixon_flow_control()
131 writeb(0, &ch->ch_neo_uart->efr); in neo_set_ixon_flow_control()
134 writeb(efr, &ch->ch_neo_uart->efr); in neo_set_ixon_flow_control()
136 writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), &ch->ch_neo_uart->fctr); in neo_set_ixon_flow_control()
137 ch->ch_r_watermark = 4; in neo_set_ixon_flow_control()
139 writeb(32, &ch->ch_neo_uart->rfifo); in neo_set_ixon_flow_control()
140 ch->ch_r_tlevel = 32; in neo_set_ixon_flow_control()
143 writeb(ch->ch_startc, &ch->ch_neo_uart->xonchar1); in neo_set_ixon_flow_control()
144 writeb(0, &ch->ch_neo_uart->xonchar2); in neo_set_ixon_flow_control()
146 writeb(ch->ch_stopc, &ch->ch_neo_uart->xoffchar1); in neo_set_ixon_flow_control()
147 writeb(0, &ch->ch_neo_uart->xoffchar2); in neo_set_ixon_flow_control()
149 writeb(ier, &ch->ch_neo_uart->ier); in neo_set_ixon_flow_control()
152 static void neo_set_ixoff_flow_control(struct jsm_channel *ch) in neo_set_ixoff_flow_control() argument
155 ier = readb(&ch->ch_neo_uart->ier); in neo_set_ixoff_flow_control()
156 efr = readb(&ch->ch_neo_uart->efr); in neo_set_ixoff_flow_control()
158 jsm_dbg(PARAM, &ch->ch_bd->pci_dev, "Setting IXOFF FLOW\n"); in neo_set_ixoff_flow_control()
169 writeb(0, &ch->ch_neo_uart->efr); in neo_set_ixoff_flow_control()
172 writeb(efr, &ch->ch_neo_uart->efr); in neo_set_ixoff_flow_control()
175 writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), &ch->ch_neo_uart->fctr); in neo_set_ixoff_flow_control()
177 writeb(8, &ch->ch_neo_uart->tfifo); in neo_set_ixoff_flow_control()
178 ch->ch_t_tlevel = 8; in neo_set_ixoff_flow_control()
181 writeb(ch->ch_startc, &ch->ch_neo_uart->xonchar1); in neo_set_ixoff_flow_control()
182 writeb(0, &ch->ch_neo_uart->xonchar2); in neo_set_ixoff_flow_control()
184 writeb(ch->ch_stopc, &ch->ch_neo_uart->xoffchar1); in neo_set_ixoff_flow_control()
185 writeb(0, &ch->ch_neo_uart->xoffchar2); in neo_set_ixoff_flow_control()
187 writeb(ier, &ch->ch_neo_uart->ier); in neo_set_ixoff_flow_control()
190 static void neo_set_no_input_flow_control(struct jsm_channel *ch) in neo_set_no_input_flow_control() argument
193 ier = readb(&ch->ch_neo_uart->ier); in neo_set_no_input_flow_control()
194 efr = readb(&ch->ch_neo_uart->efr); in neo_set_no_input_flow_control()
196 jsm_dbg(PARAM, &ch->ch_bd->pci_dev, "Unsetting Input FLOW\n"); in neo_set_no_input_flow_control()
204 if (ch->ch_c_iflag & IXON) in neo_set_no_input_flow_control()
210 writeb(0, &ch->ch_neo_uart->efr); in neo_set_no_input_flow_control()
213 writeb(efr, &ch->ch_neo_uart->efr); in neo_set_no_input_flow_control()
216 writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), &ch->ch_neo_uart->fctr); in neo_set_no_input_flow_control()
218 ch->ch_r_watermark = 0; in neo_set_no_input_flow_control()
220 writeb(16, &ch->ch_neo_uart->tfifo); in neo_set_no_input_flow_control()
221 ch->ch_t_tlevel = 16; in neo_set_no_input_flow_control()
223 writeb(16, &ch->ch_neo_uart->rfifo); in neo_set_no_input_flow_control()
224 ch->ch_r_tlevel = 16; in neo_set_no_input_flow_control()
226 writeb(ier, &ch->ch_neo_uart->ier); in neo_set_no_input_flow_control()
229 static void neo_set_no_output_flow_control(struct jsm_channel *ch) in neo_set_no_output_flow_control() argument
232 ier = readb(&ch->ch_neo_uart->ier); in neo_set_no_output_flow_control()
233 efr = readb(&ch->ch_neo_uart->efr); in neo_set_no_output_flow_control()
235 jsm_dbg(PARAM, &ch->ch_bd->pci_dev, "Unsetting Output FLOW\n"); in neo_set_no_output_flow_control()
242 if (ch->ch_c_iflag & IXOFF) in neo_set_no_output_flow_control()
248 writeb(0, &ch->ch_neo_uart->efr); in neo_set_no_output_flow_control()
251 writeb(efr, &ch->ch_neo_uart->efr); in neo_set_no_output_flow_control()
254 writeb((UART_17158_FCTR_TRGD | UART_17158_FCTR_RTS_8DELAY), &ch->ch_neo_uart->fctr); in neo_set_no_output_flow_control()
256 ch->ch_r_watermark = 0; in neo_set_no_output_flow_control()
258 writeb(16, &ch->ch_neo_uart->tfifo); in neo_set_no_output_flow_control()
259 ch->ch_t_tlevel = 16; in neo_set_no_output_flow_control()
261 writeb(16, &ch->ch_neo_uart->rfifo); in neo_set_no_output_flow_control()
262 ch->ch_r_tlevel = 16; in neo_set_no_output_flow_control()
264 writeb(ier, &ch->ch_neo_uart->ier); in neo_set_no_output_flow_control()
267 static inline void neo_set_new_start_stop_chars(struct jsm_channel *ch) in neo_set_new_start_stop_chars() argument
271 if (ch->ch_c_cflag & CRTSCTS) in neo_set_new_start_stop_chars()
274 jsm_dbg(PARAM, &ch->ch_bd->pci_dev, "start\n"); in neo_set_new_start_stop_chars()
277 writeb(ch->ch_startc, &ch->ch_neo_uart->xonchar1); in neo_set_new_start_stop_chars()
278 writeb(0, &ch->ch_neo_uart->xonchar2); in neo_set_new_start_stop_chars()
280 writeb(ch->ch_stopc, &ch->ch_neo_uart->xoffchar1); in neo_set_new_start_stop_chars()
281 writeb(0, &ch->ch_neo_uart->xoffchar2); in neo_set_new_start_stop_chars()
284 static void neo_copy_data_from_uart_to_queue(struct jsm_channel *ch) in neo_copy_data_from_uart_to_queue() argument
294 if (!ch) in neo_copy_data_from_uart_to_queue()
298 head = ch->ch_r_head & RQUEUEMASK; in neo_copy_data_from_uart_to_queue()
299 tail = ch->ch_r_tail & RQUEUEMASK; in neo_copy_data_from_uart_to_queue()
302 linestatus = ch->ch_cached_lsr; in neo_copy_data_from_uart_to_queue()
303 ch->ch_cached_lsr = 0; in neo_copy_data_from_uart_to_queue()
316 if (!(ch->ch_flags & CH_FIFO_ENABLED)) in neo_copy_data_from_uart_to_queue()
319 total = readb(&ch->ch_neo_uart->rfifo); in neo_copy_data_from_uart_to_queue()
345 linestatus = readb(&ch->ch_neo_uart->lsr); in neo_copy_data_from_uart_to_queue()
372 ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); in neo_copy_data_from_uart_to_queue()
377 memcpy_fromio(ch->ch_rqueue + head, &ch->ch_neo_uart->txrxburst, n); in neo_copy_data_from_uart_to_queue()
383 memset(ch->ch_equeue + head, 0, n); in neo_copy_data_from_uart_to_queue()
389 ch->ch_rxcount += n; in neo_copy_data_from_uart_to_queue()
396 if (ch->ch_c_iflag & IGNBRK) in neo_copy_data_from_uart_to_queue()
409 linestatus |= readb(&ch->ch_neo_uart->lsr); in neo_copy_data_from_uart_to_queue()
417 ch->ch_cached_lsr = linestatus; in neo_copy_data_from_uart_to_queue()
431 ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); in neo_copy_data_from_uart_to_queue()
440 memcpy_fromio(&discard, &ch->ch_neo_uart->txrxburst, 1); in neo_copy_data_from_uart_to_queue()
453 jsm_dbg(READ, &ch->ch_bd->pci_dev, in neo_copy_data_from_uart_to_queue()
455 ch->ch_rqueue[tail], ch->ch_equeue[tail]); in neo_copy_data_from_uart_to_queue()
457 ch->ch_r_tail = tail = (tail + 1) & RQUEUEMASK; in neo_copy_data_from_uart_to_queue()
458 ch->ch_err_overrun++; in neo_copy_data_from_uart_to_queue()
462 memcpy_fromio(ch->ch_rqueue + head, &ch->ch_neo_uart->txrxburst, 1); in neo_copy_data_from_uart_to_queue()
463 ch->ch_equeue[head] = (u8) linestatus; in neo_copy_data_from_uart_to_queue()
465 jsm_dbg(READ, &ch->ch_bd->pci_dev, "DATA/LSR pair: %x %x\n", in neo_copy_data_from_uart_to_queue()
466 ch->ch_rqueue[head], ch->ch_equeue[head]); in neo_copy_data_from_uart_to_queue()
475 ch->ch_rxcount++; in neo_copy_data_from_uart_to_queue()
481 ch->ch_r_head = head & RQUEUEMASK; in neo_copy_data_from_uart_to_queue()
482 ch->ch_e_head = head & EQUEUEMASK; in neo_copy_data_from_uart_to_queue()
483 jsm_input(ch); in neo_copy_data_from_uart_to_queue()
486 static void neo_copy_data_from_queue_to_uart(struct jsm_channel *ch) in neo_copy_data_from_queue_to_uart() argument
496 if (!ch) in neo_copy_data_from_queue_to_uart()
499 circ = &ch->uart_port.state->xmit; in neo_copy_data_from_queue_to_uart()
506 if ((ch->ch_flags & CH_STOP) || (ch->ch_flags & CH_BREAK_SENDING)) in neo_copy_data_from_queue_to_uart()
511 if (!(ch->ch_flags & CH_FIFO_ENABLED)) { in neo_copy_data_from_queue_to_uart()
512 u8 lsrbits = readb(&ch->ch_neo_uart->lsr); in neo_copy_data_from_queue_to_uart()
514 ch->ch_cached_lsr |= lsrbits; in neo_copy_data_from_queue_to_uart()
515 if (ch->ch_cached_lsr & UART_LSR_THRE) { in neo_copy_data_from_queue_to_uart()
516 ch->ch_cached_lsr &= ~(UART_LSR_THRE); in neo_copy_data_from_queue_to_uart()
518 writeb(circ->buf[circ->tail], &ch->ch_neo_uart->txrx); in neo_copy_data_from_queue_to_uart()
519 jsm_dbg(WRITE, &ch->ch_bd->pci_dev, in neo_copy_data_from_queue_to_uart()
522 ch->ch_txcount++; in neo_copy_data_from_queue_to_uart()
530 if (!(ch->ch_flags & (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM))) in neo_copy_data_from_queue_to_uart()
533 n = UART_17158_TX_FIFOSIZE - ch->ch_t_tlevel; in neo_copy_data_from_queue_to_uart()
551 memcpy_toio(&ch->ch_neo_uart->txrxburst, circ->buf + tail, s); in neo_copy_data_from_queue_to_uart()
555 ch->ch_txcount += s; in neo_copy_data_from_queue_to_uart()
562 if (len_written >= ch->ch_t_tlevel) in neo_copy_data_from_queue_to_uart()
563 ch->ch_flags &= ~(CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); in neo_copy_data_from_queue_to_uart()
566 uart_write_wakeup(&ch->uart_port); in neo_copy_data_from_queue_to_uart()
569 static void neo_parse_modem(struct jsm_channel *ch, u8 signals) in neo_parse_modem() argument
573 jsm_dbg(MSIGS, &ch->ch_bd->pci_dev, in neo_parse_modem()
575 ch->ch_portnum, msignals); in neo_parse_modem()
582 uart_handle_dcd_change(&ch->uart_port, msignals & UART_MSR_DCD); in neo_parse_modem()
584 uart_handle_cts_change(&ch->uart_port, msignals & UART_MSR_CTS); in neo_parse_modem()
586 ch->ch_mistat |= UART_MSR_DCD; in neo_parse_modem()
588 ch->ch_mistat &= ~UART_MSR_DCD; in neo_parse_modem()
591 ch->ch_mistat |= UART_MSR_DSR; in neo_parse_modem()
593 ch->ch_mistat &= ~UART_MSR_DSR; in neo_parse_modem()
596 ch->ch_mistat |= UART_MSR_RI; in neo_parse_modem()
598 ch->ch_mistat &= ~UART_MSR_RI; in neo_parse_modem()
601 ch->ch_mistat |= UART_MSR_CTS; in neo_parse_modem()
603 ch->ch_mistat &= ~UART_MSR_CTS; in neo_parse_modem()
605 jsm_dbg(MSIGS, &ch->ch_bd->pci_dev, in neo_parse_modem()
607 ch->ch_portnum, in neo_parse_modem()
608 !!((ch->ch_mistat | ch->ch_mostat) & UART_MCR_DTR), in neo_parse_modem()
609 !!((ch->ch_mistat | ch->ch_mostat) & UART_MCR_RTS), in neo_parse_modem()
610 !!((ch->ch_mistat | ch->ch_mostat) & UART_MSR_CTS), in neo_parse_modem()
611 !!((ch->ch_mistat | ch->ch_mostat) & UART_MSR_DSR), in neo_parse_modem()
612 !!((ch->ch_mistat | ch->ch_mostat) & UART_MSR_RI), in neo_parse_modem()
613 !!((ch->ch_mistat | ch->ch_mostat) & UART_MSR_DCD)); in neo_parse_modem()
617 static void neo_assert_modem_signals(struct jsm_channel *ch) in neo_assert_modem_signals() argument
619 if (!ch) in neo_assert_modem_signals()
622 writeb(ch->ch_mostat, &ch->ch_neo_uart->mcr); in neo_assert_modem_signals()
625 neo_pci_posting_flush(ch->ch_bd); in neo_assert_modem_signals()
633 static void neo_flush_uart_write(struct jsm_channel *ch) in neo_flush_uart_write() argument
638 if (!ch) in neo_flush_uart_write()
641 writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_XMIT), &ch->ch_neo_uart->isr_fcr); in neo_flush_uart_write()
646 tmp = readb(&ch->ch_neo_uart->isr_fcr); in neo_flush_uart_write()
648 jsm_dbg(IOCTL, &ch->ch_bd->pci_dev, in neo_flush_uart_write()
656 ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); in neo_flush_uart_write()
665 static void neo_flush_uart_read(struct jsm_channel *ch) in neo_flush_uart_read() argument
670 if (!ch) in neo_flush_uart_read()
673 writeb((UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR), &ch->ch_neo_uart->isr_fcr); in neo_flush_uart_read()
678 tmp = readb(&ch->ch_neo_uart->isr_fcr); in neo_flush_uart_read()
680 jsm_dbg(IOCTL, &ch->ch_bd->pci_dev, in neo_flush_uart_read()
692 static void neo_clear_break(struct jsm_channel *ch) in neo_clear_break() argument
696 spin_lock_irqsave(&ch->ch_lock, lock_flags); in neo_clear_break()
699 if (ch->ch_flags & CH_BREAK_SENDING) { in neo_clear_break()
700 u8 temp = readb(&ch->ch_neo_uart->lcr); in neo_clear_break()
701 writeb((temp & ~UART_LCR_SBC), &ch->ch_neo_uart->lcr); in neo_clear_break()
703 ch->ch_flags &= ~(CH_BREAK_SENDING); in neo_clear_break()
704 jsm_dbg(IOCTL, &ch->ch_bd->pci_dev, in neo_clear_break()
709 neo_pci_posting_flush(ch->ch_bd); in neo_clear_break()
711 spin_unlock_irqrestore(&ch->ch_lock, lock_flags); in neo_clear_break()
719 struct jsm_channel *ch; in neo_parse_isr() local
730 ch = brd->channels[port]; in neo_parse_isr()
731 if (!ch) in neo_parse_isr()
737 isr = readb(&ch->ch_neo_uart->isr_fcr); in neo_parse_isr()
748 jsm_dbg(INTR, &ch->ch_bd->pci_dev, "%s:%d isr: %x\n", in neo_parse_isr()
753 neo_copy_data_from_uart_to_queue(ch); in neo_parse_isr()
756 spin_lock_irqsave(&ch->ch_lock, lock_flags); in neo_parse_isr()
757 jsm_check_queue_flow_control(ch); in neo_parse_isr()
758 spin_unlock_irqrestore(&ch->ch_lock, lock_flags); in neo_parse_isr()
763 spin_lock_irqsave(&ch->ch_lock, lock_flags); in neo_parse_isr()
764 ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); in neo_parse_isr()
765 spin_unlock_irqrestore(&ch->ch_lock, lock_flags); in neo_parse_isr()
766 neo_copy_data_from_queue_to_uart(ch); in neo_parse_isr()
770 cause = readb(&ch->ch_neo_uart->xoffchar1); in neo_parse_isr()
772 jsm_dbg(INTR, &ch->ch_bd->pci_dev, in neo_parse_isr()
781 spin_lock_irqsave(&ch->ch_lock, lock_flags); in neo_parse_isr()
785 ch->ch_flags &= ~(CH_STOP); in neo_parse_isr()
787 jsm_dbg(INTR, &ch->ch_bd->pci_dev, in neo_parse_isr()
793 ch->ch_flags |= CH_STOP; in neo_parse_isr()
794 jsm_dbg(INTR, &ch->ch_bd->pci_dev, in neo_parse_isr()
797 jsm_dbg(INTR, &ch->ch_bd->pci_dev, in neo_parse_isr()
801 spin_unlock_irqrestore(&ch->ch_lock, lock_flags); in neo_parse_isr()
809 cause = readb(&ch->ch_neo_uart->mcr); in neo_parse_isr()
812 spin_lock_irqsave(&ch->ch_lock, lock_flags); in neo_parse_isr()
815 ch->ch_mostat |= UART_MCR_RTS; in neo_parse_isr()
817 ch->ch_mostat &= ~(UART_MCR_RTS); in neo_parse_isr()
820 ch->ch_mostat |= UART_MCR_DTR; in neo_parse_isr()
822 ch->ch_mostat &= ~(UART_MCR_DTR); in neo_parse_isr()
824 spin_unlock_irqrestore(&ch->ch_lock, lock_flags); in neo_parse_isr()
828 jsm_dbg(INTR, &ch->ch_bd->pci_dev, in neo_parse_isr()
830 neo_parse_modem(ch, readb(&ch->ch_neo_uart->msr)); in neo_parse_isr()
836 struct jsm_channel *ch; in neo_parse_lsr() local
846 ch = brd->channels[port]; in neo_parse_lsr()
847 if (!ch) in neo_parse_lsr()
850 linestatus = readb(&ch->ch_neo_uart->lsr); in neo_parse_lsr()
852 jsm_dbg(INTR, &ch->ch_bd->pci_dev, "%s:%d port: %d linestatus: %x\n", in neo_parse_lsr()
855 ch->ch_cached_lsr |= linestatus; in neo_parse_lsr()
857 if (ch->ch_cached_lsr & UART_LSR_DR) { in neo_parse_lsr()
859 neo_copy_data_from_uart_to_queue(ch); in neo_parse_lsr()
860 spin_lock_irqsave(&ch->ch_lock, lock_flags); in neo_parse_lsr()
861 jsm_check_queue_flow_control(ch); in neo_parse_lsr()
862 spin_unlock_irqrestore(&ch->ch_lock, lock_flags); in neo_parse_lsr()
872 jsm_dbg(INTR, &ch->ch_bd->pci_dev, in neo_parse_lsr()
882 ch->ch_err_parity++; in neo_parse_lsr()
883 jsm_dbg(INTR, &ch->ch_bd->pci_dev, "%s:%d Port: %d. PAR ERR!\n", in neo_parse_lsr()
888 ch->ch_err_frame++; in neo_parse_lsr()
889 jsm_dbg(INTR, &ch->ch_bd->pci_dev, "%s:%d Port: %d. FRM ERR!\n", in neo_parse_lsr()
894 ch->ch_err_break++; in neo_parse_lsr()
895 jsm_dbg(INTR, &ch->ch_bd->pci_dev, in neo_parse_lsr()
907 ch->ch_err_overrun++; in neo_parse_lsr()
908 jsm_dbg(INTR, &ch->ch_bd->pci_dev, in neo_parse_lsr()
914 spin_lock_irqsave(&ch->ch_lock, lock_flags); in neo_parse_lsr()
915 ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); in neo_parse_lsr()
916 spin_unlock_irqrestore(&ch->ch_lock, lock_flags); in neo_parse_lsr()
919 neo_copy_data_from_queue_to_uart(ch); in neo_parse_lsr()
922 spin_lock_irqsave(&ch->ch_lock, lock_flags); in neo_parse_lsr()
923 ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); in neo_parse_lsr()
924 spin_unlock_irqrestore(&ch->ch_lock, lock_flags); in neo_parse_lsr()
927 neo_copy_data_from_queue_to_uart(ch); in neo_parse_lsr()
935 static void neo_param(struct jsm_channel *ch) in neo_param() argument
943 bd = ch->ch_bd; in neo_param()
950 if ((ch->ch_c_cflag & (CBAUD)) == 0) { in neo_param()
951 ch->ch_r_head = ch->ch_r_tail = 0; in neo_param()
952 ch->ch_e_head = ch->ch_e_tail = 0; in neo_param()
954 neo_flush_uart_write(ch); in neo_param()
955 neo_flush_uart_read(ch); in neo_param()
957 ch->ch_flags |= (CH_BAUD0); in neo_param()
958 ch->ch_mostat &= ~(UART_MCR_RTS | UART_MCR_DTR); in neo_param()
959 neo_assert_modem_signals(ch); in neo_param()
990 cflag = C_BAUD(ch->uart_port.state->port.tty); in neo_param()
999 if (ch->ch_flags & CH_BAUD0) in neo_param()
1000 ch->ch_flags &= ~(CH_BAUD0); in neo_param()
1003 if (ch->ch_c_cflag & PARENB) in neo_param()
1006 if (!(ch->ch_c_cflag & PARODD)) in neo_param()
1014 if (ch->ch_c_cflag & CMSPAR) in neo_param()
1018 if (ch->ch_c_cflag & CSTOPB) in neo_param()
1021 switch (ch->ch_c_cflag & CSIZE) { in neo_param()
1037 ier = readb(&ch->ch_neo_uart->ier); in neo_param()
1038 uart_lcr = readb(&ch->ch_neo_uart->lcr); in neo_param()
1040 quot = ch->ch_bd->bd_dividend / baud; in neo_param()
1043 writeb(UART_LCR_DLAB, &ch->ch_neo_uart->lcr); in neo_param()
1044 writeb((quot & 0xff), &ch->ch_neo_uart->txrx); in neo_param()
1045 writeb((quot >> 8), &ch->ch_neo_uart->ier); in neo_param()
1046 writeb(lcr, &ch->ch_neo_uart->lcr); in neo_param()
1050 writeb(lcr, &ch->ch_neo_uart->lcr); in neo_param()
1052 if (ch->ch_c_cflag & CREAD) in neo_param()
1057 writeb(ier, &ch->ch_neo_uart->ier); in neo_param()
1060 neo_set_new_start_stop_chars(ch); in neo_param()
1062 if (ch->ch_c_cflag & CRTSCTS) in neo_param()
1063 neo_set_cts_flow_control(ch); in neo_param()
1064 else if (ch->ch_c_iflag & IXON) { in neo_param()
1066 if ((ch->ch_startc == __DISABLED_CHAR) || (ch->ch_stopc == __DISABLED_CHAR)) in neo_param()
1067 neo_set_no_output_flow_control(ch); in neo_param()
1069 neo_set_ixon_flow_control(ch); in neo_param()
1072 neo_set_no_output_flow_control(ch); in neo_param()
1074 if (ch->ch_c_cflag & CRTSCTS) in neo_param()
1075 neo_set_rts_flow_control(ch); in neo_param()
1076 else if (ch->ch_c_iflag & IXOFF) { in neo_param()
1078 if ((ch->ch_startc == __DISABLED_CHAR) || (ch->ch_stopc == __DISABLED_CHAR)) in neo_param()
1079 neo_set_no_input_flow_control(ch); in neo_param()
1081 neo_set_ixoff_flow_control(ch); in neo_param()
1084 neo_set_no_input_flow_control(ch); in neo_param()
1091 writeb(1, &ch->ch_neo_uart->rfifo); in neo_param()
1092 ch->ch_r_tlevel = 1; in neo_param()
1095 neo_assert_modem_signals(ch); in neo_param()
1098 neo_parse_modem(ch, readb(&ch->ch_neo_uart->msr)); in neo_param()
1110 struct jsm_channel *ch; in neo_intr() local
1186 ch = brd->channels[port]; in neo_intr()
1187 neo_copy_data_from_uart_to_queue(ch); in neo_intr()
1190 spin_lock_irqsave(&ch->ch_lock, lock_flags2); in neo_intr()
1191 jsm_check_queue_flow_control(ch); in neo_intr()
1192 spin_unlock_irqrestore(&ch->ch_lock, lock_flags2); in neo_intr()
1251 static void neo_disable_receiver(struct jsm_channel *ch) in neo_disable_receiver() argument
1253 u8 tmp = readb(&ch->ch_neo_uart->ier); in neo_disable_receiver()
1255 writeb(tmp, &ch->ch_neo_uart->ier); in neo_disable_receiver()
1258 neo_pci_posting_flush(ch->ch_bd); in neo_disable_receiver()
1267 static void neo_enable_receiver(struct jsm_channel *ch) in neo_enable_receiver() argument
1269 u8 tmp = readb(&ch->ch_neo_uart->ier); in neo_enable_receiver()
1271 writeb(tmp, &ch->ch_neo_uart->ier); in neo_enable_receiver()
1274 neo_pci_posting_flush(ch->ch_bd); in neo_enable_receiver()
1277 static void neo_send_start_character(struct jsm_channel *ch) in neo_send_start_character() argument
1279 if (!ch) in neo_send_start_character()
1282 if (ch->ch_startc != __DISABLED_CHAR) { in neo_send_start_character()
1283 ch->ch_xon_sends++; in neo_send_start_character()
1284 writeb(ch->ch_startc, &ch->ch_neo_uart->txrx); in neo_send_start_character()
1287 neo_pci_posting_flush(ch->ch_bd); in neo_send_start_character()
1291 static void neo_send_stop_character(struct jsm_channel *ch) in neo_send_stop_character() argument
1293 if (!ch) in neo_send_stop_character()
1296 if (ch->ch_stopc != __DISABLED_CHAR) { in neo_send_stop_character()
1297 ch->ch_xoff_sends++; in neo_send_stop_character()
1298 writeb(ch->ch_stopc, &ch->ch_neo_uart->txrx); in neo_send_stop_character()
1301 neo_pci_posting_flush(ch->ch_bd); in neo_send_stop_character()
1308 static void neo_uart_init(struct jsm_channel *ch) in neo_uart_init() argument
1310 writeb(0, &ch->ch_neo_uart->ier); in neo_uart_init()
1311 writeb(0, &ch->ch_neo_uart->efr); in neo_uart_init()
1312 writeb(UART_EFR_ECB, &ch->ch_neo_uart->efr); in neo_uart_init()
1315 readb(&ch->ch_neo_uart->txrx); in neo_uart_init()
1316 writeb((UART_FCR_ENABLE_FIFO|UART_FCR_CLEAR_RCVR|UART_FCR_CLEAR_XMIT), &ch->ch_neo_uart->isr_fcr); in neo_uart_init()
1317 readb(&ch->ch_neo_uart->lsr); in neo_uart_init()
1318 readb(&ch->ch_neo_uart->msr); in neo_uart_init()
1320 ch->ch_flags |= CH_FIFO_ENABLED; in neo_uart_init()
1323 writeb(ch->ch_mostat, &ch->ch_neo_uart->mcr); in neo_uart_init()
1329 static void neo_uart_off(struct jsm_channel *ch) in neo_uart_off() argument
1332 writeb(0, &ch->ch_neo_uart->efr); in neo_uart_off()
1335 writeb(0, &ch->ch_neo_uart->ier); in neo_uart_off()
1338 static u32 neo_get_uart_bytes_left(struct jsm_channel *ch) in neo_get_uart_bytes_left() argument
1341 u8 lsr = readb(&ch->ch_neo_uart->lsr); in neo_get_uart_bytes_left()
1344 ch->ch_cached_lsr |= lsr; in neo_get_uart_bytes_left()
1350 ch->ch_flags |= (CH_TX_FIFO_EMPTY | CH_TX_FIFO_LWM); in neo_get_uart_bytes_left()
1358 static void neo_send_break(struct jsm_channel *ch) in neo_send_break() argument
1367 if (!(ch->ch_flags & CH_BREAK_SENDING)) { in neo_send_break()
1368 u8 temp = readb(&ch->ch_neo_uart->lcr); in neo_send_break()
1369 writeb((temp | UART_LCR_SBC), &ch->ch_neo_uart->lcr); in neo_send_break()
1370 ch->ch_flags |= (CH_BREAK_SENDING); in neo_send_break()
1373 neo_pci_posting_flush(ch->ch_bd); in neo_send_break()
1385 static void neo_send_immediate_char(struct jsm_channel *ch, unsigned char c) in neo_send_immediate_char() argument
1387 if (!ch) in neo_send_immediate_char()
1390 writeb(c, &ch->ch_neo_uart->txrx); in neo_send_immediate_char()
1393 neo_pci_posting_flush(ch->ch_bd); in neo_send_immediate_char()