Lines Matching refs:up
232 static void ip22zilog_maybe_update_regs(struct uart_ip22zilog_port *up, in ip22zilog_maybe_update_regs() argument
235 if (!ZS_REGS_HELD(up)) { in ip22zilog_maybe_update_regs()
236 if (ZS_TX_ACTIVE(up)) { in ip22zilog_maybe_update_regs()
237 up->flags |= IP22ZILOG_FLAG_REGS_HELD; in ip22zilog_maybe_update_regs()
239 __load_zsregs(channel, up->curregs); in ip22zilog_maybe_update_regs()
247 static bool ip22zilog_receive_chars(struct uart_ip22zilog_port *up, in ip22zilog_receive_chars() argument
252 bool push = up->port.state != NULL; in ip22zilog_receive_chars()
270 ch &= up->parity_mask; in ip22zilog_receive_chars()
274 r1 |= up->tty_break; in ip22zilog_receive_chars()
278 up->port.icount.rx++; in ip22zilog_receive_chars()
280 up->tty_break = 0; in ip22zilog_receive_chars()
283 up->port.icount.brk++; in ip22zilog_receive_chars()
289 up->port.icount.parity++; in ip22zilog_receive_chars()
291 up->port.icount.frame++; in ip22zilog_receive_chars()
293 up->port.icount.overrun++; in ip22zilog_receive_chars()
294 r1 &= up->port.read_status_mask; in ip22zilog_receive_chars()
303 if (uart_handle_sysrq_char(&up->port, ch)) in ip22zilog_receive_chars()
307 uart_insert_char(&up->port, r1, Rx_OVR, ch, flag); in ip22zilog_receive_chars()
312 static void ip22zilog_status_handle(struct uart_ip22zilog_port *up, in ip22zilog_status_handle() argument
324 if (up->curregs[R15] & BRKIE) { in ip22zilog_status_handle()
325 if ((status & BRK_ABRT) && !(up->prev_status & BRK_ABRT)) { in ip22zilog_status_handle()
326 if (uart_handle_break(&up->port)) in ip22zilog_status_handle()
327 up->tty_break = Rx_SYS; in ip22zilog_status_handle()
329 up->tty_break = Rx_BRK; in ip22zilog_status_handle()
333 if (ZS_WANTS_MODEM_STATUS(up)) { in ip22zilog_status_handle()
335 up->port.icount.dsr++; in ip22zilog_status_handle()
341 if ((status ^ up->prev_status) ^ DCD) in ip22zilog_status_handle()
342 uart_handle_dcd_change(&up->port, in ip22zilog_status_handle()
344 if ((status ^ up->prev_status) ^ CTS) in ip22zilog_status_handle()
345 uart_handle_cts_change(&up->port, in ip22zilog_status_handle()
348 wake_up_interruptible(&up->port.state->port.delta_msr_wait); in ip22zilog_status_handle()
351 up->prev_status = status; in ip22zilog_status_handle()
354 static void ip22zilog_transmit_chars(struct uart_ip22zilog_port *up, in ip22zilog_transmit_chars() argument
360 if (ZS_IS_CONS(up)) { in ip22zilog_transmit_chars()
376 up->flags &= ~IP22ZILOG_FLAG_TX_ACTIVE; in ip22zilog_transmit_chars()
378 if (ZS_REGS_HELD(up)) { in ip22zilog_transmit_chars()
379 __load_zsregs(channel, up->curregs); in ip22zilog_transmit_chars()
380 up->flags &= ~IP22ZILOG_FLAG_REGS_HELD; in ip22zilog_transmit_chars()
383 if (ZS_TX_STOPPED(up)) { in ip22zilog_transmit_chars()
384 up->flags &= ~IP22ZILOG_FLAG_TX_STOPPED; in ip22zilog_transmit_chars()
388 if (up->port.x_char) { in ip22zilog_transmit_chars()
389 up->flags |= IP22ZILOG_FLAG_TX_ACTIVE; in ip22zilog_transmit_chars()
390 writeb(up->port.x_char, &channel->data); in ip22zilog_transmit_chars()
394 up->port.icount.tx++; in ip22zilog_transmit_chars()
395 up->port.x_char = 0; in ip22zilog_transmit_chars()
399 if (up->port.state == NULL) in ip22zilog_transmit_chars()
401 tport = &up->port.state->port; in ip22zilog_transmit_chars()
402 if (uart_tx_stopped(&up->port)) in ip22zilog_transmit_chars()
404 if (!uart_fifo_get(&up->port, &c)) in ip22zilog_transmit_chars()
407 up->flags |= IP22ZILOG_FLAG_TX_ACTIVE; in ip22zilog_transmit_chars()
413 uart_write_wakeup(&up->port); in ip22zilog_transmit_chars()
425 struct uart_ip22zilog_port *up; in ip22zilog_interrupt() local
430 up = &ip22zilog_port_table[CHANNEL_A]; in ip22zilog_interrupt()
431 channel = ZILOG_CHANNEL_FROM_PORT(&up->port); in ip22zilog_interrupt()
433 uart_port_lock(&up->port); in ip22zilog_interrupt()
443 push = ip22zilog_receive_chars(up, channel); in ip22zilog_interrupt()
445 ip22zilog_status_handle(up, channel); in ip22zilog_interrupt()
447 ip22zilog_transmit_chars(up, channel); in ip22zilog_interrupt()
449 uart_port_unlock(&up->port); in ip22zilog_interrupt()
452 tty_flip_buffer_push(&up->port.state->port); in ip22zilog_interrupt()
455 up = &ip22zilog_port_table[CHANNEL_B]; in ip22zilog_interrupt()
456 channel = ZILOG_CHANNEL_FROM_PORT(&up->port); in ip22zilog_interrupt()
459 uart_port_lock(&up->port); in ip22zilog_interrupt()
466 push = ip22zilog_receive_chars(up, channel); in ip22zilog_interrupt()
468 ip22zilog_status_handle(up, channel); in ip22zilog_interrupt()
470 ip22zilog_transmit_chars(up, channel); in ip22zilog_interrupt()
472 uart_port_unlock(&up->port); in ip22zilog_interrupt()
475 tty_flip_buffer_push(&up->port.state->port); in ip22zilog_interrupt()
538 struct uart_ip22zilog_port *up = in ip22zilog_set_mctrl() local
555 up->curregs[R5] |= set_bits; in ip22zilog_set_mctrl()
556 up->curregs[R5] &= ~clear_bits; in ip22zilog_set_mctrl()
557 write_zsreg(channel, R5, up->curregs[R5]); in ip22zilog_set_mctrl()
563 struct uart_ip22zilog_port *up = in ip22zilog_stop_tx() local
566 up->flags |= IP22ZILOG_FLAG_TX_STOPPED; in ip22zilog_stop_tx()
572 struct uart_ip22zilog_port *up = in ip22zilog_start_tx() local
577 up->flags |= IP22ZILOG_FLAG_TX_ACTIVE; in ip22zilog_start_tx()
578 up->flags &= ~IP22ZILOG_FLAG_TX_STOPPED; in ip22zilog_start_tx()
608 uart_write_wakeup(&up->port); in ip22zilog_start_tx()
615 struct uart_ip22zilog_port *up = UART_ZILOG(port); in ip22zilog_stop_rx() local
618 if (ZS_IS_CONS(up)) in ip22zilog_stop_rx()
624 up->curregs[R1] &= ~RxINT_MASK; in ip22zilog_stop_rx()
625 ip22zilog_maybe_update_regs(up, channel); in ip22zilog_stop_rx()
631 struct uart_ip22zilog_port *up = in ip22zilog_enable_ms() local
636 new_reg = up->curregs[R15] | (DCDIE | SYNCIE | CTSIE); in ip22zilog_enable_ms()
637 if (new_reg != up->curregs[R15]) { in ip22zilog_enable_ms()
638 up->curregs[R15] = new_reg; in ip22zilog_enable_ms()
641 write_zsreg(channel, R15, up->curregs[R15]); in ip22zilog_enable_ms()
648 struct uart_ip22zilog_port *up = in ip22zilog_break_ctl() local
663 new_reg = (up->curregs[R5] | set_bits) & ~clear_bits; in ip22zilog_break_ctl()
664 if (new_reg != up->curregs[R5]) { in ip22zilog_break_ctl()
665 up->curregs[R5] = new_reg; in ip22zilog_break_ctl()
668 write_zsreg(channel, R5, up->curregs[R5]); in ip22zilog_break_ctl()
674 static void __ip22zilog_reset(struct uart_ip22zilog_port *up) in __ip22zilog_reset() argument
679 if (up->flags & IP22ZILOG_FLAG_RESET_DONE) in __ip22zilog_reset()
683 channel = ZILOG_CHANNEL_FROM_PORT(&up->port); in __ip22zilog_reset()
691 up = &ip22zilog_port_table[CHANNEL_A]; in __ip22zilog_reset()
692 channel = ZILOG_CHANNEL_FROM_PORT(&up->port); in __ip22zilog_reset()
698 up->flags |= IP22ZILOG_FLAG_RESET_DONE; in __ip22zilog_reset()
699 up = &ip22zilog_port_table[CHANNEL_B]; in __ip22zilog_reset()
700 up->flags |= IP22ZILOG_FLAG_RESET_DONE; in __ip22zilog_reset()
703 static void __ip22zilog_startup(struct uart_ip22zilog_port *up) in __ip22zilog_startup() argument
707 channel = ZILOG_CHANNEL_FROM_PORT(&up->port); in __ip22zilog_startup()
709 __ip22zilog_reset(up); in __ip22zilog_startup()
711 __load_zsregs(channel, up->curregs); in __ip22zilog_startup()
713 write_zsreg(channel, R9, up->curregs[R9]); in __ip22zilog_startup()
714 up->prev_status = readb(&channel->control); in __ip22zilog_startup()
717 up->curregs[R3] |= RxENAB; in __ip22zilog_startup()
718 up->curregs[R5] |= TxENAB; in __ip22zilog_startup()
720 up->curregs[R1] |= EXT_INT_ENAB | INT_ALL_Rx | TxINT_ENAB; in __ip22zilog_startup()
721 ip22zilog_maybe_update_regs(up, channel); in __ip22zilog_startup()
726 struct uart_ip22zilog_port *up = UART_ZILOG(port); in ip22zilog_startup() local
729 if (ZS_IS_CONS(up)) in ip22zilog_startup()
733 __ip22zilog_startup(up); in ip22zilog_startup()
765 struct uart_ip22zilog_port *up = UART_ZILOG(port); in ip22zilog_shutdown() local
769 if (ZS_IS_CONS(up)) in ip22zilog_shutdown()
777 up->curregs[R3] &= ~RxENAB; in ip22zilog_shutdown()
778 up->curregs[R5] &= ~TxENAB; in ip22zilog_shutdown()
781 up->curregs[R1] &= ~(EXT_INT_ENAB | TxINT_ENAB | RxINT_MASK); in ip22zilog_shutdown()
782 up->curregs[R5] &= ~SND_BRK; in ip22zilog_shutdown()
783 ip22zilog_maybe_update_regs(up, channel); in ip22zilog_shutdown()
792 ip22zilog_convert_to_zs(struct uart_ip22zilog_port *up, unsigned int cflag, in ip22zilog_convert_to_zs() argument
796 up->curregs[R10] = NRZ; in ip22zilog_convert_to_zs()
797 up->curregs[R11] = TCBR | RCBR; in ip22zilog_convert_to_zs()
800 up->curregs[R4] &= ~XCLK_MASK; in ip22zilog_convert_to_zs()
801 up->curregs[R4] |= X16CLK; in ip22zilog_convert_to_zs()
802 up->curregs[R12] = brg & 0xff; in ip22zilog_convert_to_zs()
803 up->curregs[R13] = (brg >> 8) & 0xff; in ip22zilog_convert_to_zs()
804 up->curregs[R14] = BRENAB; in ip22zilog_convert_to_zs()
807 up->curregs[3] &= ~RxN_MASK; in ip22zilog_convert_to_zs()
808 up->curregs[5] &= ~TxN_MASK; in ip22zilog_convert_to_zs()
811 up->curregs[3] |= Rx5; in ip22zilog_convert_to_zs()
812 up->curregs[5] |= Tx5; in ip22zilog_convert_to_zs()
813 up->parity_mask = 0x1f; in ip22zilog_convert_to_zs()
816 up->curregs[3] |= Rx6; in ip22zilog_convert_to_zs()
817 up->curregs[5] |= Tx6; in ip22zilog_convert_to_zs()
818 up->parity_mask = 0x3f; in ip22zilog_convert_to_zs()
821 up->curregs[3] |= Rx7; in ip22zilog_convert_to_zs()
822 up->curregs[5] |= Tx7; in ip22zilog_convert_to_zs()
823 up->parity_mask = 0x7f; in ip22zilog_convert_to_zs()
827 up->curregs[3] |= Rx8; in ip22zilog_convert_to_zs()
828 up->curregs[5] |= Tx8; in ip22zilog_convert_to_zs()
829 up->parity_mask = 0xff; in ip22zilog_convert_to_zs()
832 up->curregs[4] &= ~0x0c; in ip22zilog_convert_to_zs()
834 up->curregs[4] |= SB2; in ip22zilog_convert_to_zs()
836 up->curregs[4] |= SB1; in ip22zilog_convert_to_zs()
838 up->curregs[4] |= PAR_ENAB; in ip22zilog_convert_to_zs()
840 up->curregs[4] &= ~PAR_ENAB; in ip22zilog_convert_to_zs()
842 up->curregs[4] |= PAR_EVEN; in ip22zilog_convert_to_zs()
844 up->curregs[4] &= ~PAR_EVEN; in ip22zilog_convert_to_zs()
846 up->port.read_status_mask = Rx_OVR; in ip22zilog_convert_to_zs()
848 up->port.read_status_mask |= CRC_ERR | PAR_ERR; in ip22zilog_convert_to_zs()
850 up->port.read_status_mask |= BRK_ABRT; in ip22zilog_convert_to_zs()
852 up->port.ignore_status_mask = 0; in ip22zilog_convert_to_zs()
854 up->port.ignore_status_mask |= CRC_ERR | PAR_ERR; in ip22zilog_convert_to_zs()
856 up->port.ignore_status_mask |= BRK_ABRT; in ip22zilog_convert_to_zs()
858 up->port.ignore_status_mask |= Rx_OVR; in ip22zilog_convert_to_zs()
862 up->port.ignore_status_mask = 0xff; in ip22zilog_convert_to_zs()
870 struct uart_ip22zilog_port *up = in ip22zilog_set_termios() local
877 uart_port_lock_irqsave(&up->port, &flags); in ip22zilog_set_termios()
881 ip22zilog_convert_to_zs(up, termios->c_cflag, termios->c_iflag, brg); in ip22zilog_set_termios()
883 if (UART_ENABLE_MS(&up->port, termios->c_cflag)) in ip22zilog_set_termios()
884 up->flags |= IP22ZILOG_FLAG_MODEM_STATUS; in ip22zilog_set_termios()
886 up->flags &= ~IP22ZILOG_FLAG_MODEM_STATUS; in ip22zilog_set_termios()
888 ip22zilog_maybe_update_regs(up, ZILOG_CHANNEL_FROM_PORT(port)); in ip22zilog_set_termios()
891 uart_port_unlock_irqrestore(&up->port, flags); in ip22zilog_set_termios()
969 struct uart_ip22zilog_port *up = &ip22zilog_port_table[con->index]; in ip22zilog_console_write() local
972 uart_port_lock_irqsave(&up->port, &flags); in ip22zilog_console_write()
973 uart_console_write(&up->port, s, count, ip22zilog_put_char); in ip22zilog_console_write()
975 uart_port_unlock_irqrestore(&up->port, flags); in ip22zilog_console_write()
980 struct uart_ip22zilog_port *up = &ip22zilog_port_table[con->index]; in ip22zilog_console_setup() local
986 up->flags |= IP22ZILOG_FLAG_IS_CONS; in ip22zilog_console_setup()
990 uart_port_lock_irqsave(&up->port, &flags); in ip22zilog_console_setup()
992 up->curregs[R15] |= BRKIE; in ip22zilog_console_setup()
994 __ip22zilog_startup(up); in ip22zilog_console_setup()
996 uart_port_unlock_irqrestore(&up->port, flags); in ip22zilog_console_setup()
1000 return uart_set_options(&up->port, con, baud, parity, bits, flow); in ip22zilog_console_setup()
1028 static void __init ip22zilog_prepare(struct uart_ip22zilog_port *up) in ip22zilog_prepare() argument
1033 spin_lock_init(&up->port.lock); in ip22zilog_prepare()
1035 up->port.iotype = UPIO_MEM; in ip22zilog_prepare()
1036 up->port.uartclk = ZS_CLOCK; in ip22zilog_prepare()
1037 up->port.fifosize = 1; in ip22zilog_prepare()
1038 up->port.has_sysrq = sysrq_on; in ip22zilog_prepare()
1039 up->port.ops = &ip22zilog_pops; in ip22zilog_prepare()
1040 up->port.type = PORT_IP22ZILOG; in ip22zilog_prepare()
1043 up->parity_mask = 0xff; in ip22zilog_prepare()
1044 up->curregs[R1] = EXT_INT_ENAB | INT_ALL_Rx | TxINT_ENAB; in ip22zilog_prepare()
1045 up->curregs[R4] = PAR_EVEN | X16CLK | SB1; in ip22zilog_prepare()
1046 up->curregs[R3] = RxENAB | Rx8; in ip22zilog_prepare()
1047 up->curregs[R5] = TxENAB | Tx8; in ip22zilog_prepare()
1048 up->curregs[R9] = NV | MIE; in ip22zilog_prepare()
1049 up->curregs[R10] = NRZ; in ip22zilog_prepare()
1050 up->curregs[R11] = TCBR | RCBR; in ip22zilog_prepare()
1052 up->curregs[R12] = (brg & 0xff); in ip22zilog_prepare()
1053 up->curregs[R13] = (brg >> 8) & 0xff; in ip22zilog_prepare()
1054 up->curregs[R14] = BRENAB; in ip22zilog_prepare()
1059 struct uart_ip22zilog_port *up; in ip22zilog_probe() local
1065 up = &ip22zilog_port_table[CHANNEL_B]; in ip22zilog_probe()
1066 if (up->port.dev) in ip22zilog_probe()
1077 ip22zilog_prepare(up); in ip22zilog_probe()
1079 up->port.mapbase = res->start + offsetof(struct zilog_layout, channelB); in ip22zilog_probe()
1080 up->port.membase = membase + offsetof(struct zilog_layout, channelB); in ip22zilog_probe()
1081 up->port.line = 0; in ip22zilog_probe()
1082 up->port.dev = &pdev->dev; in ip22zilog_probe()
1083 up->port.irq = irq; in ip22zilog_probe()
1085 up = &ip22zilog_port_table[CHANNEL_A]; in ip22zilog_probe()
1086 ip22zilog_prepare(up); in ip22zilog_probe()
1088 up->port.mapbase = res->start + offsetof(struct zilog_layout, channelA); in ip22zilog_probe()
1089 up->port.membase = membase + offsetof(struct zilog_layout, channelA); in ip22zilog_probe()
1090 up->port.line = 1; in ip22zilog_probe()
1091 up->port.dev = &pdev->dev; in ip22zilog_probe()
1092 up->port.irq = irq; in ip22zilog_probe()