diff options
| -rw-r--r-- | drivers/char/mxser.c | 257 |
1 files changed, 126 insertions, 131 deletions
diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c index 4b81a85c5b5..e83ccee0316 100644 --- a/drivers/char/mxser.c +++ b/drivers/char/mxser.c @@ -222,8 +222,8 @@ struct mxser_mon_ext { struct mxser_board; struct mxser_port { + struct tty_port port; struct mxser_board *board; - struct tty_struct *tty; unsigned long ioaddr; unsigned long opmode_ioaddr; @@ -234,7 +234,6 @@ struct mxser_port { int rx_low_water; int baud_base; /* max. speed */ int type; /* UART type */ - int flags; /* defined in tty.h */ int x_char; /* xon/xoff character */ int IER; /* Interrupt Enable Register */ @@ -249,15 +248,12 @@ struct mxser_port { unsigned char err_shadow; unsigned long event; - int count; /* # of fd on device */ - int blocked_open; /* # of blocked opens */ struct async_icount icount; /* kernel counters for 4 input interrupts */ int timeout; int read_status_mask; int ignore_status_mask; int xmit_fifo_size; - unsigned char *xmit_buf; int xmit_head; int xmit_tail; int xmit_cnt; @@ -267,7 +263,6 @@ struct mxser_port { struct mxser_mon mon_data; spinlock_t slock; - wait_queue_head_t open_wait; wait_queue_head_t delta_msr_wait; }; @@ -575,7 +570,7 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp, */ if ((filp->f_flags & O_NONBLOCK) || test_bit(TTY_IO_ERROR, &tty->flags)) { - port->flags |= ASYNC_NORMAL_ACTIVE; + port->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -585,32 +580,32 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp, /* * Block waiting for the carrier detect and the line to become * free (i.e., not in use by the callout). While we are in - * this loop, port->count is dropped by one, so that + * this loop, port->port.count is dropped by one, so that * mxser_close() knows when to free things. We restore it upon * exit, either normal or abnormal. */ retval = 0; - add_wait_queue(&port->open_wait, &wait); + add_wait_queue(&port->port.open_wait, &wait); spin_lock_irqsave(&port->slock, flags); if (!tty_hung_up_p(filp)) - port->count--; + port->port.count--; spin_unlock_irqrestore(&port->slock, flags); - port->blocked_open++; + port->port.blocked_open++; while (1) { spin_lock_irqsave(&port->slock, flags); outb(inb(port->ioaddr + UART_MCR) | UART_MCR_DTR | UART_MCR_RTS, port->ioaddr + UART_MCR); spin_unlock_irqrestore(&port->slock, flags); set_current_state(TASK_INTERRUPTIBLE); - if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)) { - if (port->flags & ASYNC_HUP_NOTIFY) + if (tty_hung_up_p(filp) || !(port->port.flags & ASYNC_INITIALIZED)) { + if (port->port.flags & ASYNC_HUP_NOTIFY) retval = -EAGAIN; else retval = -ERESTARTSYS; break; } - if (!(port->flags & ASYNC_CLOSING) && + if (!(port->port.flags & ASYNC_CLOSING) && (do_clocal || (inb(port->ioaddr + UART_MSR) & UART_MSR_DCD))) break; @@ -621,13 +616,13 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp, schedule(); } set_current_state(TASK_RUNNING); - remove_wait_queue(&port->open_wait, &wait); + remove_wait_queue(&port->port.open_wait, &wait); if (!tty_hung_up_p(filp)) - port->count++; - port->blocked_open--; + port->port.count++; + port->port.blocked_open--; if (retval) return retval; - port->flags |= ASYNC_NORMAL_ACTIVE; + port->port.flags |= ASYNC_NORMAL_ACTIVE; return 0; } @@ -636,7 +631,7 @@ static int mxser_set_baud(struct mxser_port *info, long newspd) int quot = 0, baud; unsigned char cval; - if (!info->tty || !info->tty->termios) + if (!info->port.tty || !info->port.tty->termios) return -1; if (!(info->ioaddr)) @@ -647,13 +642,13 @@ static int mxser_set_baud(struct mxser_port *info, long newspd) if (newspd == 134) { quot = 2 * info->baud_base / 269; - tty_encode_baud_rate(info->tty, 134, 134); + tty_encode_baud_rate(info->port.tty, 134, 134); } else if (newspd) { quot = info->baud_base / newspd; if (quot == 0) quot = 1; baud = info->baud_base/quot; - tty_encode_baud_rate(info->tty, baud, baud); + tty_encode_baud_rate(info->port.tty, baud, baud); } else { quot = 0; } @@ -679,7 +674,7 @@ static int mxser_set_baud(struct mxser_port *info, long newspd) outb(cval, info->ioaddr + UART_LCR); /* reset DLAB */ #ifdef BOTHER - if (C_BAUD(info->tty) == BOTHER) { + if (C_BAUD(info->port.tty) == BOTHER) { quot = info->baud_base % newspd; quot *= 8; if (quot % newspd > newspd / 2) { @@ -707,14 +702,14 @@ static int mxser_change_speed(struct mxser_port *info, int ret = 0; unsigned char status; - if (!info->tty || !info->tty->termios) + if (!info->port.tty || !info->port.tty->termios) return ret; - cflag = info->tty->termios->c_cflag; + cflag = info->port.tty->termios->c_cflag; if (!(info->ioaddr)) return ret; - if (mxser_set_baud_method[info->tty->index] == 0) - mxser_set_baud(info, tty_get_baud_rate(info->tty)); + if (mxser_set_baud_method[info->port.tty->index] == 0) + mxser_set_baud(info, tty_get_baud_rate(info->port.tty)); /* byte size and parity */ switch (cflag & CSIZE) { @@ -777,15 +772,15 @@ static int mxser_change_speed(struct mxser_port *info, info->IER &= ~UART_IER_MSI; info->MCR &= ~UART_MCR_AFE; if (cflag & CRTSCTS) { - info->flags |= ASYNC_CTS_FLOW; + info->port.flags |= ASYNC_CTS_FLOW; info->IER |= UART_IER_MSI; if ((info->type == PORT_16550A) || (info->board->chip_flag)) { info->MCR |= UART_MCR_AFE; } else { status = inb(info->ioaddr + UART_MSR); - if (info->tty->hw_stopped) { + if (info->port.tty->hw_stopped) { if (status & UART_MSR_CTS) { - info->tty->hw_stopped = 0; + info->port.tty->hw_stopped = 0; if (info->type != PORT_16550A && !info->board->chip_flag) { outb(info->IER & ~UART_IER_THRI, @@ -795,11 +790,11 @@ static int mxser_change_speed(struct mxser_port *info, outb(info->IER, info->ioaddr + UART_IER); } - tty_wakeup(info->tty); + tty_wakeup(info->port.tty); } } else { if (!(status & UART_MSR_CTS)) { - info->tty->hw_stopped = 1; + info->port.tty->hw_stopped = 1; if ((info->type != PORT_16550A) && (!info->board->chip_flag)) { info->IER &= ~UART_IER_THRI; @@ -810,13 +805,13 @@ static int mxser_change_speed(struct mxser_port *info, } } } else { - info->flags &= ~ASYNC_CTS_FLOW; + info->port.flags &= ~ASYNC_CTS_FLOW; } outb(info->MCR, info->ioaddr + UART_MCR); if (cflag & CLOCAL) { - info->flags &= ~ASYNC_CHECK_CD; + info->port.flags &= ~ASYNC_CHECK_CD; } else { - info->flags |= ASYNC_CHECK_CD; + info->port.flags |= ASYNC_CHECK_CD; info->IER |= UART_IER_MSI; } outb(info->IER, info->ioaddr + UART_IER); @@ -825,21 +820,21 @@ static int mxser_change_speed(struct mxser_port *info, * Set up parity check flag */ info->read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR; - if (I_INPCK(info->tty)) + if (I_INPCK(info->port.tty)) info->read_status_mask |= UART_LSR_FE | UART_LSR_PE; - if (I_BRKINT(info->tty) || I_PARMRK(info->tty)) + if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty)) info->read_status_mask |= UART_LSR_BI; info->ignore_status_mask = 0; - if (I_IGNBRK(info->tty)) { + if (I_IGNBRK(info->port.tty)) { info->ignore_status_mask |= UART_LSR_BI; info->read_status_mask |= UART_LSR_BI; /* * If we're ignore parity and break indicators, ignore * overruns too. (For real raw support). */ - if (I_IGNPAR(info->tty)) { + if (I_IGNPAR(info->port.tty)) { info->ignore_status_mask |= UART_LSR_OE | UART_LSR_PE | @@ -851,16 +846,16 @@ static int mxser_change_speed(struct mxser_port *info, } } if (info->board->chip_flag) { - mxser_set_must_xon1_value(info->ioaddr, START_CHAR(info->tty)); - mxser_set_must_xoff1_value(info->ioaddr, STOP_CHAR(info->tty)); - if (I_IXON(info->tty)) { + mxser_set_must_xon1_value(info->ioaddr, START_CHAR(info->port.tty)); + mxser_set_must_xoff1_value(info->ioaddr, STOP_CHAR(info->port.tty)); + if (I_IXON(info->port.tty)) { mxser_enable_must_rx_software_flow_control( info->ioaddr); } else { mxser_disable_must_rx_software_flow_control( info->ioaddr); } - if (I_IXOFF(info->tty)) { + if (I_IXOFF(info->port.tty)) { mxser_enable_must_tx_software_flow_control( info->ioaddr); } else { @@ -890,15 +885,15 @@ static void mxser_check_modem_status(struct mxser_port *port, int status) port->mon_data.modem_status = status; wake_up_interruptible(&port->delta_msr_wait); - if ((port->flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) { + if ((port->port.flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) { if (status & UART_MSR_DCD) - wake_up_interruptible(&port->open_wait); + wake_up_interruptible(&port->port.open_wait); } - if (port->flags & ASYNC_CTS_FLOW) { - if (port->tty->hw_stopped) { + if (port->port.flags & ASYNC_CTS_FLOW) { + if (port->port.tty->hw_stopped) { if (status & UART_MSR_CTS) { - port->tty->hw_stopped = 0; + port->port.tty->hw_stopped = 0; if ((port->type != PORT_16550A) && (!port->board->chip_flag)) { @@ -908,11 +903,11 @@ static void mxser_check_modem_status(struct mxser_port *port, int status) outb(port->IER, port->ioaddr + UART_IER); } - tty_wakeup(port->tty); + tty_wakeup(port->port.tty); } } else { if (!(status & UART_MSR_CTS)) { - port->tty->hw_stopped = 1; + port->port.tty->hw_stopped = 1; if (port->type != PORT_16550A && !port->board->chip_flag) { port->IER &= ~UART_IER_THRI; @@ -935,23 +930,23 @@ static int mxser_startup(struct mxser_port *info) spin_lock_irqsave(&info->slock, flags); - if (info->flags & ASYNC_INITIALIZED) { + if (info->port.flags & ASYNC_INITIALIZED) { free_page(page); spin_unlock_irqrestore(&info->slock, flags); return 0; } if (!info->ioaddr || !info->type) { - if (info->tty) - set_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + set_bit(TTY_IO_ERROR, &info->port.tty->flags); free_page(page); spin_unlock_irqrestore(&info->slock, flags); return 0; } - if (info->xmit_buf) + if (info->port.xmit_buf) free_page(page); else - info->xmit_buf = (unsigned char *) page; + info->port.xmit_buf = (unsigned char *) page; /* * Clear the FIFO buffers and disable them @@ -973,8 +968,8 @@ static int mxser_startup(struct mxser_port *info) if (inb(info->ioaddr + UART_LSR) == 0xff) { spin_unlock_irqrestore(&info->slock, flags); if (capable(CAP_SYS_ADMIN)) { - if (info->tty) - set_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + set_bit(TTY_IO_ERROR, &info->port.tty->flags); return 0; } else return -ENODEV; @@ -1012,15 +1007,15 @@ static int mxser_startup(struct mxser_port *info) (void) inb(info->ioaddr + UART_IIR); (void) inb(info->ioaddr + UART_MSR); - if (info->tty) - clear_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + clear_bit(TTY_IO_ERROR, &info->port.tty->flags); info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; /* * and set the speed of the serial port */ mxser_change_speed(info, NULL); - info->flags |= ASYNC_INITIALIZED; + info->port.flags |= ASYNC_INITIALIZED; spin_unlock_irqrestore(&info->slock, flags); return 0; @@ -1034,7 +1029,7 @@ static void mxser_shutdown(struct mxser_port *info) { unsigned long flags; - if (!(info->flags & ASYNC_INITIALIZED)) + if (!(info->port.flags & ASYNC_INITIALIZED)) return; spin_lock_irqsave(&info->slock, flags); @@ -1048,15 +1043,15 @@ static void mxser_shutdown(struct mxser_port *info) /* * Free the IRQ, if necessary */ - if (info->xmit_buf) { - free_page((unsigned long) info->xmit_buf); - info->xmit_buf = NULL; + if (info->port.xmit_buf) { + free_page((unsigned long) info->port.xmit_buf); + info->port.xmit_buf = NULL; } info->IER = 0; outb(0x00, info->ioaddr + UART_IER); - if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) + if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL)) info->MCR &= ~(UART_MCR_DTR | UART_MCR_RTS); outb(info->MCR, info->ioaddr + UART_MCR); @@ -1072,10 +1067,10 @@ static void mxser_shutdown(struct mxser_port *info) /* read data port to reset things */ (void) inb(info->ioaddr + UART_RX); - if (info->tty) - set_bit(TTY_IO_ERROR, &info->tty->flags); + if (info->port.tty) + set_bit(TTY_IO_ERROR, &info->port.tty->flags); - info->flags &= ~ASYNC_INITIALIZED; + info->port.flags &= ~ASYNC_INITIALIZED; if (info->board->chip_flag) SET_MOXA_MUST_NO_SOFTWARE_FLOW_CONTROL(info->ioaddr); @@ -1105,12 +1100,12 @@ static int mxser_open(struct tty_struct *tty, struct file *filp) return -ENODEV; tty->driver_data = info; - info->tty = tty; + info->port.tty = tty; /* * Start up serial port */ spin_lock_irqsave(&info->slock, flags); - info->count++; + info->port.count++; spin_unlock_irqrestore(&info->slock, flags); retval = mxser_startup(info); if (retval) @@ -1170,34 +1165,34 @@ static void mxser_close(struct tty_struct *tty, struct file *filp) spin_unlock_irqrestore(&info->slock, flags); return; } - if ((tty->count == 1) && (info->count != 1)) { + if ((tty->count == 1) && (info->port.count != 1)) { /* * Uh, oh. tty->count is 1, which means that the tty - * structure will be freed. Info->count should always + * structure will be freed. Info->port.count should always * be one in these conditions. If it's greater than * one, we've got real problems, since it means the * serial port won't be shutdown. */ printk(KERN_ERR "mxser_close: bad serial port count; " - "tty->count is 1, info->count is %d\n", info->count); - info->count = 1; + "tty->count is 1, info->port.count is %d\n", info->port.count); + info->port.count = 1; } - if (--info->count < 0) { + if (--info->port.count < 0) { printk(KERN_ERR "mxser_close: bad serial port count for " - "ttys%d: %d\n", tty->index, info->count); - info->count = 0; + "ttys%d: %d\n", tty->index, info->port.count); + info->port.count = 0; } - if (info->count) { + if (info->port.count) { spin_unlock_irqrestore(&info->slock, flags); return; } - info->flags |= ASYNC_CLOSING; + info->port.flags |= ASYNC_CLOSING; spin_unlock_irqrestore(&info->slock, flags); /* * Save the termios structure, since this port may have * separate termios for callout and dialin. */ - if (info->flags & ASYNC_NORMAL_ACTIVE) + if (info->port.flags & ASYNC_NORMAL_ACTIVE) info->normal_termios = *tty->termios; /* * Now we wait for the transmit buffer to clear; and we notify @@ -1216,7 +1211,7 @@ static void mxser_close(struct tty_struct *tty, struct file *filp) if (info->board->chip_flag) info->IER &= ~MOXA_MUST_RECV_ISR; - if (info->flags & ASYNC_INITIALIZED) { + if (info->port.flags & ASYNC_INITIALIZED) { outb(info->IER, info->ioaddr + UART_IER); /* * Before we drop DTR, make sure the UART transmitter @@ -1237,14 +1232,14 @@ static void mxser_close(struct tty_struct *tty, struct file *filp) tty->closing = 0; info->event = 0; - info->tty = NULL; - if (info->blocked_open) { + info->port.tty = NULL; + if (info->port.blocked_open) { if (info->close_delay) schedule_timeout_interruptible(info->close_delay); - wake_up_interruptible(&info->open_wait); + wake_up_interruptible(&info->port.open_wait); } - info->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING); + info->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING); } static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int count) @@ -1253,7 +1248,7 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou struct mxser_port *info = tty->driver_data; unsigned long flags; - if (!info->xmit_buf) + if (!info->port.xmit_buf) return 0; while (1) { @@ -1262,7 +1257,7 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou if (c <= 0) break; - memcpy(info->xmit_buf + info->xmit_head, buf, c); + memcpy(info->port.xmit_buf + info->xmit_head, buf, c); spin_lock_irqsave(&info->slock, flags); info->xmit_head = (info->xmit_head + c) & (SERIAL_XMIT_SIZE - 1); @@ -1294,14 +1289,14 @@ static int mxser_put_char(struct tty_struct *tty, unsigned char ch) struct mxser_port *info = tty->driver_data; unsigned long flags; - if (!info->xmit_buf) + if (!info->port.xmit_buf) return 0; if (info->xmit_cnt >= SERIAL_XMIT_SIZE - 1) return 0; spin_lock_irqsave(&info->slock, flags); - info->xmit_buf[info->xmit_head++] = ch; + info->port.xmit_buf[info->xmit_head++] = ch; info->xmit_head &= SERIAL_XMIT_SIZE - 1; info->xmit_cnt++; spin_unlock_irqrestore(&info->slock, flags); @@ -1327,7 +1322,7 @@ static void mxser_flush_chars(struct tty_struct *tty) if (info->xmit_cnt <= 0 || tty->stopped || - !info->xmit_buf || + !info->port.xmit_buf || (tty->hw_stopped && (info->type != PORT_16550A) && (!info->board->chip_flag) @@ -1370,10 +1365,10 @@ static int mxser_get_serial_info(struct mxser_port *info, { struct serial_struct tmp = { .type = info->type, - .line = info->tty->index, + .line = info->port.tty->index, .port = info->ioaddr, .irq = info->board->irq, - .flags = info->flags, + .flags = info->port.flags, .baud_base = info->baud_base, .close_delay = info->close_delay, .closing_wait = info->closing_wait, @@ -1403,33 +1398,33 @@ static int mxser_set_serial_info(struct mxser_port *info, new_serial.port != info->ioaddr) return -EINVAL; - flags = info->flags & ASYNC_SPD_MASK; + flags = info->port.flags & ASYNC_SPD_MASK; if (!capable(CAP_SYS_ADMIN)) { if ((new_serial.baud_base != info->baud_base) || (new_serial.close_delay != info->close_delay) || - ((new_serial.flags & ~ASYNC_USR_MASK) != (info->flags & ~ASYNC_USR_MASK))) + ((new_serial.flags & ~ASYNC_USR_MASK) != (info->port.flags & ~ASYNC_USR_MASK))) return -EPERM; - info->flags = ((info->flags & ~ASYNC_USR_MASK) | + info->port.flags = ((info->port.flags & ~ASYNC_USR_MASK) | (new_serial.flags & ASYNC_USR_MASK)); } else { /* * OK, past this point, all the error checking has been done. * At this point, we start making changes..... */ - info->flags = ((info->flags & ~ASYNC_FLAGS) | + info->port.flags = ((info->port.flags & ~ASYNC_FLAGS) | (new_serial.flags & ASYNC_FLAGS)); info->close_delay = new_serial.close_delay * HZ / 100; info->closing_wait = new_serial.closing_wait * HZ / 100; - info->tty->low_latency = - (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0; - info->tty->low_latency = 0; - if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST && + info->port.tty->low_latency = + (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0; + info->port.tty->low_latency = 0; + if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST && (new_serial.baud_base != info->baud_base || new_serial.custom_divisor != info->custom_divisor)) { baud = new_serial.baud_base / new_serial.custom_divisor; - tty_encode_baud_rate(info->tty, baud, baud); + tty_encode_baud_rate(info->port.tty, baud, baud); } } @@ -1437,8 +1432,8 @@ static int mxser_set_serial_info(struct mxser_port *info, process_txrx_fifo(info); - if (info->flags & ASYNC_INITIALIZED) { - if (flags != (info->flags & ASYNC_SPD_MASK)) { + if (info->port.flags & ASYNC_INITIALIZED) { + if (flags != (info->port.flags & ASYNC_SPD_MASK)) { spin_lock_irqsave(&info->slock, sl_flags); mxser_change_speed(info, NULL); spin_unlock_irqrestore(&info->slock, sl_flags); @@ -1693,12 +1688,12 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp) continue; } - if (!port->tty || !port->tty->termios) + if (!port->port.tty || !port->port.tty->termios) GMStatus[i].cflag = port->normal_termios.c_cflag; else GMStatus[i].cflag = - port->tty->termios->c_cflag; + port->port.tty->termios->c_cflag; status = inb(port->ioaddr + UART_MSR); if (status & 0x80 /*UART_MSR_DCD */ ) @@ -1755,14 +1750,14 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp) mon_data_ext.modem_status[i] = port->mon_data.modem_status; mon_data_ext.baudrate[i] = - tty_get_baud_rate(port->tty); + tty_get_baud_rate(port->port.tty); - if (!port->tty || !port->tty->termios) { + if (!port->port.tty || !port->port.tty->termios) { cflag = port->normal_termios.c_cflag; iflag = port->normal_termios.c_iflag; } else { - cflag = port->tty->termios->c_cflag; - iflag = port->tty->termios->c_iflag; + cflag = port->port.tty->termios->c_cflag; + iflag = port->port.tty->termios->c_iflag; } mon_data_ext.databits[i] = cflag & CSIZE; @@ -1989,7 +1984,7 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file, else info->mon_data.hold_reason |= NPPI_NOTIFY_XOFFXENT; - if (info->tty->hw_stopped) + if (info->port.tty->hw_stopped) info->mon_data.hold_reason |= NPPI_NOTIFY_CTSHOLD; else info->mon_data.hold_reason &= ~NPPI_NOTIFY_CTSHOLD; @@ -2038,7 +2033,7 @@ static void mxser_stoprx(struct tty_struct *tty) } } - if (info->tty->termios->c_cflag & CRTSCTS) { + if (info->port.tty->termios->c_cflag & CRTSCTS) { info->MCR &= ~UART_MCR_RTS; outb(info->MCR, info->ioaddr + UART_MCR); } @@ -2075,7 +2070,7 @@ static void mxser_unthrottle(struct tty_struct *tty) } } - if (info->tty->termios->c_cflag & CRTSCTS) { + if (info->port.tty->termios->c_cflag & CRTSCTS) { info->MCR |= UART_MCR_RTS; outb(info->MCR, info->ioaddr + UART_MCR); } @@ -2106,7 +2101,7 @@ static void mxser_start(struct tty_struct *tty) unsigned long flags; spin_lock_irqsave(&info->slock, flags); - if (info->xmit_cnt && info->xmit_buf) { + if (info->xmit_cnt && info->port.xmit_buf) { outb(info->IER & ~UART_IER_THRI, info->ioaddr + UART_IER); info->IER |= UART_IER_THRI; outb(info->IER, info->ioaddr + UART_IER); @@ -2220,10 +2215,10 @@ static void mxser_hangup(struct tty_struct *tty) mxser_flush_buffer(tty); mxser_shutdown(info); info->event = 0; - info->count = 0; - info->flags &= ~ASYNC_NORMAL_ACTIVE; - info->tty = NULL; - wake_up_interruptible(&info->open_wait); + info->port.count = 0; + info->port.flags &= ~ASYNC_NORMAL_ACTIVE; + info->port.tty = NULL; + wake_up_interruptible(&info->port.open_wait); } /* @@ -2246,7 +2241,7 @@ static void mxser_rs_break(struct tty_struct *tty, int break_state) static void mxser_receive_chars(struct mxser_port *port, int *status) { - struct tty_struct *tty = port->tty; + struct tty_struct *tty = port->port.tty; unsigned char ch, gdl; int ignored = 0; int cnt = 0; @@ -2302,7 +2297,7 @@ intr_old: flag = TTY_BREAK; port->icount.brk++; - if (port->flags & ASYNC_SAK) + if (port->port.flags & ASYNC_SAK) do_SAK(tty); } else if (*status & UART_LSR_PE) { flag = TTY_PARITY; @@ -2333,7 +2328,7 @@ intr_old: } while (*status & UART_LSR_DR); end_intr: - mxvar_log.rxcnt[port->tty->index] += cnt; + mxvar_log.rxcnt[port->port.tty->index] += cnt; port->mon_data.rxcnt += cnt; port->mon_data.up_rxcnt += cnt; @@ -2354,18 +2349,18 @@ static void mxser_transmit_chars(struct mxser_port *port) if (port->x_char) { outb(port->x_char, port->ioaddr + UART_TX); port->x_char = 0; - mxvar_log.txcnt[port->tty->index]++; + mxvar_log.txcnt[port->port.tty->index]++; port->mon_data.txcnt++; port->mon_data.up_txcnt++; port->icount.tx++; return; } - if (port->xmit_buf == NULL) + if (port->port.xmit_buf == NULL) return; - if ((port->xmit_cnt <= 0) || port->tty->stopped || - (port->tty->hw_stopped && + if ((port->xmit_cnt <= 0) || port->port.tty->stopped || + (port->port.tty->hw_stopped && (port->type != PORT_16550A) && (!port->board->chip_flag))) { port->IER &= ~UART_IER_THRI; @@ -2376,20 +2371,20 @@ static void mxser_transmit_chars(struct mxser_port *port) cnt = port->xmit_cnt; count = port->xmit_fifo_size; do { - outb(port->xmit_buf[port->xmit_tail++], + outb(port->port.xmit_buf[port->xmit_tail++], port->ioaddr + UART_TX); port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE - 1); if (--port->xmit_cnt <= 0) break; } while (--count > 0); - mxvar_log.txcnt[port->tty->index] += (cnt - port->xmit_cnt); + mxvar_log.txcnt[port->port.tty->index] += (cnt - port->xmit_cnt); port->mon_data.txcnt += (cnt - port->xmit_cnt); port->mon_data.up_txcnt += (cnt - port->xmit_cnt); port->icount.tx += (cnt - port->xmit_cnt); if (port->xmit_cnt < WAKEUP_CHARS) - tty_wakeup(port->tty); + tty_wakeup(port->port.tty); if (port->xmit_cnt <= 0) { port->IER &= ~UART_IER_THRI; @@ -2440,9 +2435,9 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id) if (iir & UART_IIR_NO_INT) break; iir &= MOXA_MUST_IIR_MASK; - if (!port->tty || - (port->flags & ASYNC_CLOSING) || - !(port->flags & + if (!port->port.tty || + (port->port.flags & ASYNC_CLOSING) || + !(port->port.flags & ASYNC_INITIALIZED)) { status = inb(port->ioaddr + UART_LSR); outb(0x27, port->ioaddr + UART_FCR); @@ -2558,7 +2553,7 @@ static int __devinit mxser_initbrd(struct mxser_board *brd, if (brd->chip_flag != MOXA_OTHER_UART) mxser_enable_must_enchance_mode(info->ioaddr); - info->flags = ASYNC_SHARE_IRQ; + info->port.flags = ASYNC_SHARE_IRQ; info->type = brd->uart_type; process_txrx_fifo(info); @@ -2567,7 +2562,7 @@ static int __devinit mxser_initbrd(struct mxser_board *brd, info->close_delay = 5 * HZ / 10; info->closing_wait = 30 * HZ; info->normal_termios = mxvar_sdriver->init_termios; - init_waitqueue_head(&info->open_wait); + tty_port_init(&info->port); init_waitqueue_head(&info->delta_msr_wait); memset(&info->mon_data, 0, sizeof(struct mxser_mon)); info->err_shadow = 0; |