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Commit 0ad9e7d1 authored by Alan Cox's avatar Alan Cox Committed by Linus Torvalds
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mxser: use tty_port 

Switch mxser to use the new tty_port structure
Signed-off-by: default avatarAlan Cox <alan@redhat.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 9de6a51f
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Showing with 126 additions and 131 deletions
drivers/char/mxser.c
View file @ 0ad9e7d1
...@@ -222,8 +222,8 @@ struct mxser_mon_ext { ...@@ -222,8 +222,8 @@ struct mxser_mon_ext {
struct mxser_board; struct mxser_board;
struct mxser_port { struct mxser_port {
struct tty_port port;
struct mxser_board *board; struct mxser_board *board;
struct tty_struct *tty;
unsigned long ioaddr; unsigned long ioaddr;
unsigned long opmode_ioaddr; unsigned long opmode_ioaddr;
...@@ -234,7 +234,6 @@ struct mxser_port { ...@@ -234,7 +234,6 @@ struct mxser_port {
int rx_low_water; int rx_low_water;
int baud_base; /* max. speed */ int baud_base; /* max. speed */
int type; /* UART type */ int type; /* UART type */
int flags; /* defined in tty.h */
int x_char; /* xon/xoff character */ int x_char; /* xon/xoff character */
int IER; /* Interrupt Enable Register */ int IER; /* Interrupt Enable Register */
...@@ -249,15 +248,12 @@ struct mxser_port { ...@@ -249,15 +248,12 @@ struct mxser_port {
unsigned char err_shadow; unsigned char err_shadow;
unsigned long event; 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 */ struct async_icount icount; /* kernel counters for 4 input interrupts */
int timeout; int timeout;
int read_status_mask; int read_status_mask;
int ignore_status_mask; int ignore_status_mask;
int xmit_fifo_size; int xmit_fifo_size;
unsigned char *xmit_buf;
int xmit_head; int xmit_head;
int xmit_tail; int xmit_tail;
int xmit_cnt; int xmit_cnt;
...@@ -267,7 +263,6 @@ struct mxser_port { ...@@ -267,7 +263,6 @@ struct mxser_port {
struct mxser_mon mon_data; struct mxser_mon mon_data;
spinlock_t slock; spinlock_t slock;
wait_queue_head_t open_wait;
wait_queue_head_t delta_msr_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, ...@@ -575,7 +570,7 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp,
*/ */
if ((filp->f_flags & O_NONBLOCK) || if ((filp->f_flags & O_NONBLOCK) ||
test_bit(TTY_IO_ERROR, &tty->flags)) { test_bit(TTY_IO_ERROR, &tty->flags)) {
port->flags |= ASYNC_NORMAL_ACTIVE; port->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0; return 0;
} }
...@@ -585,32 +580,32 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp, ...@@ -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 * Block waiting for the carrier detect and the line to become
* free (i.e., not in use by the callout). While we are in * 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 * mxser_close() knows when to free things. We restore it upon
* exit, either normal or abnormal. * exit, either normal or abnormal.
*/ */
retval = 0; retval = 0;
add_wait_queue(&port->open_wait, &wait); add_wait_queue(&port->port.open_wait, &wait);
spin_lock_irqsave(&port->slock, flags); spin_lock_irqsave(&port->slock, flags);
if (!tty_hung_up_p(filp)) if (!tty_hung_up_p(filp))
port->count--; port->port.count--;
spin_unlock_irqrestore(&port->slock, flags); spin_unlock_irqrestore(&port->slock, flags);
port->blocked_open++; port->port.blocked_open++;
while (1) { while (1) {
spin_lock_irqsave(&port->slock, flags); spin_lock_irqsave(&port->slock, flags);
outb(inb(port->ioaddr + UART_MCR) | outb(inb(port->ioaddr + UART_MCR) |
UART_MCR_DTR | UART_MCR_RTS, port->ioaddr + UART_MCR); UART_MCR_DTR | UART_MCR_RTS, port->ioaddr + UART_MCR);
spin_unlock_irqrestore(&port->slock, flags); spin_unlock_irqrestore(&port->slock, flags);
set_current_state(TASK_INTERRUPTIBLE); set_current_state(TASK_INTERRUPTIBLE);
if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)) { if (tty_hung_up_p(filp) || !(port->port.flags & ASYNC_INITIALIZED)) {
if (port->flags & ASYNC_HUP_NOTIFY) if (port->port.flags & ASYNC_HUP_NOTIFY)
retval = -EAGAIN; retval = -EAGAIN;
else else
retval = -ERESTARTSYS; retval = -ERESTARTSYS;
break; break;
} }
if (!(port->flags & ASYNC_CLOSING) && if (!(port->port.flags & ASYNC_CLOSING) &&
(do_clocal || (do_clocal ||
(inb(port->ioaddr + UART_MSR) & UART_MSR_DCD))) (inb(port->ioaddr + UART_MSR) & UART_MSR_DCD)))
break; break;
...@@ -621,13 +616,13 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp, ...@@ -621,13 +616,13 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp,
schedule(); schedule();
} }
set_current_state(TASK_RUNNING); 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)) if (!tty_hung_up_p(filp))
port->count++; port->port.count++;
port->blocked_open--; port->port.blocked_open--;
if (retval) if (retval)
return retval; return retval;
port->flags |= ASYNC_NORMAL_ACTIVE; port->port.flags |= ASYNC_NORMAL_ACTIVE;
return 0; return 0;
} }
...@@ -636,7 +631,7 @@ static int mxser_set_baud(struct mxser_port *info, long newspd) ...@@ -636,7 +631,7 @@ static int mxser_set_baud(struct mxser_port *info, long newspd)
int quot = 0, baud; int quot = 0, baud;
unsigned char cval; unsigned char cval;
if (!info->tty || !info->tty->termios) if (!info->port.tty || !info->port.tty->termios)
return -1; return -1;
if (!(info->ioaddr)) if (!(info->ioaddr))
...@@ -647,13 +642,13 @@ static int mxser_set_baud(struct mxser_port *info, long newspd) ...@@ -647,13 +642,13 @@ static int mxser_set_baud(struct mxser_port *info, long newspd)
if (newspd == 134) { if (newspd == 134) {
quot = 2 * info->baud_base / 269; 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) { } else if (newspd) {
quot = info->baud_base / newspd; quot = info->baud_base / newspd;
if (quot == 0) if (quot == 0)
quot = 1; quot = 1;
baud = info->baud_base/quot; baud = info->baud_base/quot;
tty_encode_baud_rate(info->tty, baud, baud); tty_encode_baud_rate(info->port.tty, baud, baud);
} else { } else {
quot = 0; quot = 0;
} }
...@@ -679,7 +674,7 @@ static int mxser_set_baud(struct mxser_port *info, long newspd) ...@@ -679,7 +674,7 @@ static int mxser_set_baud(struct mxser_port *info, long newspd)
outb(cval, info->ioaddr + UART_LCR); /* reset DLAB */ outb(cval, info->ioaddr + UART_LCR); /* reset DLAB */
#ifdef BOTHER #ifdef BOTHER
if (C_BAUD(info->tty) == BOTHER) { if (C_BAUD(info->port.tty) == BOTHER) {
quot = info->baud_base % newspd; quot = info->baud_base % newspd;
quot *= 8; quot *= 8;
if (quot % newspd > newspd / 2) { if (quot % newspd > newspd / 2) {
...@@ -707,14 +702,14 @@ static int mxser_change_speed(struct mxser_port *info, ...@@ -707,14 +702,14 @@ static int mxser_change_speed(struct mxser_port *info,
int ret = 0; int ret = 0;
unsigned char status; unsigned char status;
if (!info->tty || !info->tty->termios) if (!info->port.tty || !info->port.tty->termios)
return ret; return ret;
cflag = info->tty->termios->c_cflag; cflag = info->port.tty->termios->c_cflag;
if (!(info->ioaddr)) if (!(info->ioaddr))
return ret; return ret;
if (mxser_set_baud_method[info->tty->index] == 0) if (mxser_set_baud_method[info->port.tty->index] == 0)
mxser_set_baud(info, tty_get_baud_rate(info->tty)); mxser_set_baud(info, tty_get_baud_rate(info->port.tty));
/* byte size and parity */ /* byte size and parity */
switch (cflag & CSIZE) { switch (cflag & CSIZE) {
...@@ -777,15 +772,15 @@ static int mxser_change_speed(struct mxser_port *info, ...@@ -777,15 +772,15 @@ static int mxser_change_speed(struct mxser_port *info,
info->IER &= ~UART_IER_MSI; info->IER &= ~UART_IER_MSI;
info->MCR &= ~UART_MCR_AFE; info->MCR &= ~UART_MCR_AFE;
if (cflag & CRTSCTS) { if (cflag & CRTSCTS) {
info->flags |= ASYNC_CTS_FLOW; info->port.flags |= ASYNC_CTS_FLOW;
info->IER |= UART_IER_MSI; info->IER |= UART_IER_MSI;
if ((info->type == PORT_16550A) || (info->board->chip_flag)) { if ((info->type == PORT_16550A) || (info->board->chip_flag)) {
info->MCR |= UART_MCR_AFE; info->MCR |= UART_MCR_AFE;
} else { } else {
status = inb(info->ioaddr + UART_MSR); status = inb(info->ioaddr + UART_MSR);
if (info->tty->hw_stopped) { if (info->port.tty->hw_stopped) {
if (status & UART_MSR_CTS) { if (status & UART_MSR_CTS) {
info->tty->hw_stopped = 0; info->port.tty->hw_stopped = 0;
if (info->type != PORT_16550A && if (info->type != PORT_16550A &&
!info->board->chip_flag) { !info->board->chip_flag) {
outb(info->IER & ~UART_IER_THRI, outb(info->IER & ~UART_IER_THRI,
...@@ -795,11 +790,11 @@ static int mxser_change_speed(struct mxser_port *info, ...@@ -795,11 +790,11 @@ static int mxser_change_speed(struct mxser_port *info,
outb(info->IER, info->ioaddr + outb(info->IER, info->ioaddr +
UART_IER); UART_IER);
} }
tty_wakeup(info->tty); tty_wakeup(info->port.tty);
} }
} else { } else {
if (!(status & UART_MSR_CTS)) { if (!(status & UART_MSR_CTS)) {
info->tty->hw_stopped = 1; info->port.tty->hw_stopped = 1;
if ((info->type != PORT_16550A) && if ((info->type != PORT_16550A) &&
(!info->board->chip_flag)) { (!info->board->chip_flag)) {
info->IER &= ~UART_IER_THRI; info->IER &= ~UART_IER_THRI;
...@@ -810,13 +805,13 @@ static int mxser_change_speed(struct mxser_port *info, ...@@ -810,13 +805,13 @@ static int mxser_change_speed(struct mxser_port *info,
} }
} }
} else { } else {
info->flags &= ~ASYNC_CTS_FLOW; info->port.flags &= ~ASYNC_CTS_FLOW;
} }
outb(info->MCR, info->ioaddr + UART_MCR); outb(info->MCR, info->ioaddr + UART_MCR);
if (cflag & CLOCAL) { if (cflag & CLOCAL) {
info->flags &= ~ASYNC_CHECK_CD; info->port.flags &= ~ASYNC_CHECK_CD;
} else { } else {
info->flags |= ASYNC_CHECK_CD; info->port.flags |= ASYNC_CHECK_CD;
info->IER |= UART_IER_MSI; info->IER |= UART_IER_MSI;
} }
outb(info->IER, info->ioaddr + UART_IER); outb(info->IER, info->ioaddr + UART_IER);
...@@ -825,21 +820,21 @@ static int mxser_change_speed(struct mxser_port *info, ...@@ -825,21 +820,21 @@ static int mxser_change_speed(struct mxser_port *info,
* Set up parity check flag * Set up parity check flag
*/ */
info->read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR; 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; 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->read_status_mask |= UART_LSR_BI;
info->ignore_status_mask = 0; info->ignore_status_mask = 0;
if (I_IGNBRK(info->tty)) { if (I_IGNBRK(info->port.tty)) {
info->ignore_status_mask |= UART_LSR_BI; info->ignore_status_mask |= UART_LSR_BI;
info->read_status_mask |= UART_LSR_BI; info->read_status_mask |= UART_LSR_BI;
/* /*
* If we're ignore parity and break indicators, ignore * If we're ignore parity and break indicators, ignore
* overruns too. (For real raw support). * overruns too. (For real raw support).
*/ */
if (I_IGNPAR(info->tty)) { if (I_IGNPAR(info->port.tty)) {
info->ignore_status_mask |= info->ignore_status_mask |=
UART_LSR_OE | UART_LSR_OE |
UART_LSR_PE | UART_LSR_PE |
...@@ -851,16 +846,16 @@ static int mxser_change_speed(struct mxser_port *info, ...@@ -851,16 +846,16 @@ static int mxser_change_speed(struct mxser_port *info,
} }
} }
if (info->board->chip_flag) { if (info->board->chip_flag) {
mxser_set_must_xon1_value(info->ioaddr, START_CHAR(info->tty)); mxser_set_must_xon1_value(info->ioaddr, START_CHAR(info->port.tty));
mxser_set_must_xoff1_value(info->ioaddr, STOP_CHAR(info->tty)); mxser_set_must_xoff1_value(info->ioaddr, STOP_CHAR(info->port.tty));
if (I_IXON(info->tty)) { if (I_IXON(info->port.tty)) {
mxser_enable_must_rx_software_flow_control( mxser_enable_must_rx_software_flow_control(
info->ioaddr); info->ioaddr);
} else { } else {
mxser_disable_must_rx_software_flow_control( mxser_disable_must_rx_software_flow_control(
info->ioaddr); info->ioaddr);
} }
if (I_IXOFF(info->tty)) { if (I_IXOFF(info->port.tty)) {
mxser_enable_must_tx_software_flow_control( mxser_enable_must_tx_software_flow_control(
info->ioaddr); info->ioaddr);
} else { } else {
...@@ -890,15 +885,15 @@ static void mxser_check_modem_status(struct mxser_port *port, int status) ...@@ -890,15 +885,15 @@ static void mxser_check_modem_status(struct mxser_port *port, int status)
port->mon_data.modem_status = status; port->mon_data.modem_status = status;
wake_up_interruptible(&port->delta_msr_wait); 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) 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->port.flags & ASYNC_CTS_FLOW) {
if (port->tty->hw_stopped) { if (port->port.tty->hw_stopped) {
if (status & UART_MSR_CTS) { if (status & UART_MSR_CTS) {
port->tty->hw_stopped = 0; port->port.tty->hw_stopped = 0;
if ((port->type != PORT_16550A) && if ((port->type != PORT_16550A) &&
(!port->board->chip_flag)) { (!port->board->chip_flag)) {
...@@ -908,11 +903,11 @@ static void mxser_check_modem_status(struct mxser_port *port, int status) ...@@ -908,11 +903,11 @@ static void mxser_check_modem_status(struct mxser_port *port, int status)
outb(port->IER, port->ioaddr + outb(port->IER, port->ioaddr +
UART_IER); UART_IER);
} }
tty_wakeup(port->tty); tty_wakeup(port->port.tty);
} }
} else { } else {
if (!(status & UART_MSR_CTS)) { if (!(status & UART_MSR_CTS)) {
port->tty->hw_stopped = 1; port->port.tty->hw_stopped = 1;
if (port->type != PORT_16550A && if (port->type != PORT_16550A &&
!port->board->chip_flag) { !port->board->chip_flag) {
port->IER &= ~UART_IER_THRI; port->IER &= ~UART_IER_THRI;
...@@ -935,23 +930,23 @@ static int mxser_startup(struct mxser_port *info) ...@@ -935,23 +930,23 @@ static int mxser_startup(struct mxser_port *info)
spin_lock_irqsave(&info->slock, flags); spin_lock_irqsave(&info->slock, flags);
if (info->flags & ASYNC_INITIALIZED) { if (info->port.flags & ASYNC_INITIALIZED) {
free_page(page); free_page(page);
spin_unlock_irqrestore(&info->slock, flags); spin_unlock_irqrestore(&info->slock, flags);
return 0; return 0;
} }
if (!info->ioaddr || !info->type) { if (!info->ioaddr || !info->type) {
if (info->tty) if (info->port.tty)
set_bit(TTY_IO_ERROR, &info->tty->flags); set_bit(TTY_IO_ERROR, &info->port.tty->flags);
free_page(page); free_page(page);
spin_unlock_irqrestore(&info->slock, flags); spin_unlock_irqrestore(&info->slock, flags);
return 0; return 0;
} }
if (info->xmit_buf) if (info->port.xmit_buf)
free_page(page); free_page(page);
else else
info->xmit_buf = (unsigned char *) page; info->port.xmit_buf = (unsigned char *) page;
/* /*
* Clear the FIFO buffers and disable them * Clear the FIFO buffers and disable them
...@@ -973,8 +968,8 @@ static int mxser_startup(struct mxser_port *info) ...@@ -973,8 +968,8 @@ static int mxser_startup(struct mxser_port *info)
if (inb(info->ioaddr + UART_LSR) == 0xff) { if (inb(info->ioaddr + UART_LSR) == 0xff) {
spin_unlock_irqrestore(&info->slock, flags); spin_unlock_irqrestore(&info->slock, flags);
if (capable(CAP_SYS_ADMIN)) { if (capable(CAP_SYS_ADMIN)) {
if (info->tty) if (info->port.tty)
set_bit(TTY_IO_ERROR, &info->tty->flags); set_bit(TTY_IO_ERROR, &info->port.tty->flags);
return 0; return 0;
} else } else
return -ENODEV; return -ENODEV;
...@@ -1012,15 +1007,15 @@ static int mxser_startup(struct mxser_port *info) ...@@ -1012,15 +1007,15 @@ static int mxser_startup(struct mxser_port *info)
(void) inb(info->ioaddr + UART_IIR); (void) inb(info->ioaddr + UART_IIR);
(void) inb(info->ioaddr + UART_MSR); (void) inb(info->ioaddr + UART_MSR);
if (info->tty) if (info->port.tty)
clear_bit(TTY_IO_ERROR, &info->tty->flags); clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
info->xmit_cnt = info->xmit_head = info->xmit_tail = 0; info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
/* /*
* and set the speed of the serial port * and set the speed of the serial port
*/ */
mxser_change_speed(info, NULL); mxser_change_speed(info, NULL);
info->flags |= ASYNC_INITIALIZED; info->port.flags |= ASYNC_INITIALIZED;
spin_unlock_irqrestore(&info->slock, flags); spin_unlock_irqrestore(&info->slock, flags);
return 0; return 0;
...@@ -1034,7 +1029,7 @@ static void mxser_shutdown(struct mxser_port *info) ...@@ -1034,7 +1029,7 @@ static void mxser_shutdown(struct mxser_port *info)
{ {
unsigned long flags; unsigned long flags;
if (!(info->flags & ASYNC_INITIALIZED)) if (!(info->port.flags & ASYNC_INITIALIZED))
return; return;
spin_lock_irqsave(&info->slock, flags); spin_lock_irqsave(&info->slock, flags);
...@@ -1048,15 +1043,15 @@ static void mxser_shutdown(struct mxser_port *info) ...@@ -1048,15 +1043,15 @@ static void mxser_shutdown(struct mxser_port *info)
/* /*
* Free the IRQ, if necessary * Free the IRQ, if necessary
*/ */
if (info->xmit_buf) { if (info->port.xmit_buf) {
free_page((unsigned long) info->xmit_buf); free_page((unsigned long) info->port.xmit_buf);
info->xmit_buf = NULL; info->port.xmit_buf = NULL;
} }
info->IER = 0; info->IER = 0;
outb(0x00, info->ioaddr + UART_IER); 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); info->MCR &= ~(UART_MCR_DTR | UART_MCR_RTS);
outb(info->MCR, info->ioaddr + UART_MCR); outb(info->MCR, info->ioaddr + UART_MCR);
...@@ -1072,10 +1067,10 @@ static void mxser_shutdown(struct mxser_port *info) ...@@ -1072,10 +1067,10 @@ static void mxser_shutdown(struct mxser_port *info)
/* read data port to reset things */ /* read data port to reset things */
(void) inb(info->ioaddr + UART_RX); (void) inb(info->ioaddr + UART_RX);
if (info->tty) if (info->port.tty)
set_bit(TTY_IO_ERROR, &info->tty->flags); set_bit(TTY_IO_ERROR, &info->port.tty->flags);
info->flags &= ~ASYNC_INITIALIZED; info->port.flags &= ~ASYNC_INITIALIZED;
if (info->board->chip_flag) if (info->board->chip_flag)
SET_MOXA_MUST_NO_SOFTWARE_FLOW_CONTROL(info->ioaddr); SET_MOXA_MUST_NO_SOFTWARE_FLOW_CONTROL(info->ioaddr);
...@@ -1105,12 +1100,12 @@ static int mxser_open(struct tty_struct *tty, struct file *filp) ...@@ -1105,12 +1100,12 @@ static int mxser_open(struct tty_struct *tty, struct file *filp)
return -ENODEV; return -ENODEV;
tty->driver_data = info; tty->driver_data = info;
info->tty = tty; info->port.tty = tty;
/* /*
* Start up serial port * Start up serial port
*/ */
spin_lock_irqsave(&info->slock, flags); spin_lock_irqsave(&info->slock, flags);
info->count++; info->port.count++;
spin_unlock_irqrestore(&info->slock, flags); spin_unlock_irqrestore(&info->slock, flags);
retval = mxser_startup(info); retval = mxser_startup(info);
if (retval) if (retval)
...@@ -1170,34 +1165,34 @@ static void mxser_close(struct tty_struct *tty, struct file *filp) ...@@ -1170,34 +1165,34 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
spin_unlock_irqrestore(&info->slock, flags); spin_unlock_irqrestore(&info->slock, flags);
return; 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 * 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 * be one in these conditions. If it's greater than
* one, we've got real problems, since it means the * one, we've got real problems, since it means the
* serial port won't be shutdown. * serial port won't be shutdown.
*/ */
printk(KERN_ERR "mxser_close: bad serial port count; " printk(KERN_ERR "mxser_close: bad serial port count; "
"tty->count is 1, info->count is %d\n", info->count); "tty->count is 1, info->port.count is %d\n", info->port.count);
info->count = 1; info->port.count = 1;
} }
if (--info->count < 0) { if (--info->port.count < 0) {
printk(KERN_ERR "mxser_close: bad serial port count for " printk(KERN_ERR "mxser_close: bad serial port count for "
"ttys%d: %d\n", tty->index, info->count); "ttys%d: %d\n", tty->index, info->port.count);
info->count = 0; info->port.count = 0;
} }
if (info->count) { if (info->port.count) {
spin_unlock_irqrestore(&info->slock, flags); spin_unlock_irqrestore(&info->slock, flags);
return; return;
} }
info->flags |= ASYNC_CLOSING; info->port.flags |= ASYNC_CLOSING;
spin_unlock_irqrestore(&info->slock, flags); spin_unlock_irqrestore(&info->slock, flags);
/* /*
* Save the termios structure, since this port may have * Save the termios structure, since this port may have
* separate termios for callout and dialin. * separate termios for callout and dialin.
*/ */
if (info->flags & ASYNC_NORMAL_ACTIVE) if (info->port.flags & ASYNC_NORMAL_ACTIVE)
info->normal_termios = *tty->termios; info->normal_termios = *tty->termios;
/* /*
* Now we wait for the transmit buffer to clear; and we notify * 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) ...@@ -1216,7 +1211,7 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
if (info->board->chip_flag) if (info->board->chip_flag)
info->IER &= ~MOXA_MUST_RECV_ISR; info->IER &= ~MOXA_MUST_RECV_ISR;
if (info->flags & ASYNC_INITIALIZED) { if (info->port.flags & ASYNC_INITIALIZED) {
outb(info->IER, info->ioaddr + UART_IER); outb(info->IER, info->ioaddr + UART_IER);
/* /*
* Before we drop DTR, make sure the UART transmitter * Before we drop DTR, make sure the UART transmitter
...@@ -1237,14 +1232,14 @@ static void mxser_close(struct tty_struct *tty, struct file *filp) ...@@ -1237,14 +1232,14 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
tty->closing = 0; tty->closing = 0;
info->event = 0; info->event = 0;
info->tty = NULL; info->port.tty = NULL;
if (info->blocked_open) { if (info->port.blocked_open) {
if (info->close_delay) if (info->close_delay)
schedule_timeout_interruptible(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) 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 ...@@ -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; struct mxser_port *info = tty->driver_data;
unsigned long flags; unsigned long flags;
if (!info->xmit_buf) if (!info->port.xmit_buf)
return 0; return 0;
while (1) { while (1) {
...@@ -1262,7 +1257,7 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou ...@@ -1262,7 +1257,7 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou
if (c <= 0) if (c <= 0)
break; 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); spin_lock_irqsave(&info->slock, flags);
info->xmit_head = (info->xmit_head + c) & info->xmit_head = (info->xmit_head + c) &
(SERIAL_XMIT_SIZE - 1); (SERIAL_XMIT_SIZE - 1);
...@@ -1294,14 +1289,14 @@ static int mxser_put_char(struct tty_struct *tty, unsigned char ch) ...@@ -1294,14 +1289,14 @@ static int mxser_put_char(struct tty_struct *tty, unsigned char ch)
struct mxser_port *info = tty->driver_data; struct mxser_port *info = tty->driver_data;
unsigned long flags; unsigned long flags;
if (!info->xmit_buf) if (!info->port.xmit_buf)
return 0; return 0;
if (info->xmit_cnt >= SERIAL_XMIT_SIZE - 1) if (info->xmit_cnt >= SERIAL_XMIT_SIZE - 1)
return 0; return 0;
spin_lock_irqsave(&info->slock, flags); 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_head &= SERIAL_XMIT_SIZE - 1;
info->xmit_cnt++; info->xmit_cnt++;
spin_unlock_irqrestore(&info->slock, flags); spin_unlock_irqrestore(&info->slock, flags);
...@@ -1327,7 +1322,7 @@ static void mxser_flush_chars(struct tty_struct *tty) ...@@ -1327,7 +1322,7 @@ static void mxser_flush_chars(struct tty_struct *tty)
if (info->xmit_cnt <= 0 || if (info->xmit_cnt <= 0 ||
tty->stopped || tty->stopped ||
!info->xmit_buf || !info->port.xmit_buf ||
(tty->hw_stopped && (tty->hw_stopped &&
(info->type != PORT_16550A) && (info->type != PORT_16550A) &&
(!info->board->chip_flag) (!info->board->chip_flag)
...@@ -1370,10 +1365,10 @@ static int mxser_get_serial_info(struct mxser_port *info, ...@@ -1370,10 +1365,10 @@ static int mxser_get_serial_info(struct mxser_port *info,
{ {
struct serial_struct tmp = { struct serial_struct tmp = {
.type = info->type, .type = info->type,
.line = info->tty->index, .line = info->port.tty->index,
.port = info->ioaddr, .port = info->ioaddr,
.irq = info->board->irq, .irq = info->board->irq,
.flags = info->flags, .flags = info->port.flags,
.baud_base = info->baud_base, .baud_base = info->baud_base,
.close_delay = info->close_delay, .close_delay = info->close_delay,
.closing_wait = info->closing_wait, .closing_wait = info->closing_wait,
...@@ -1403,33 +1398,33 @@ static int mxser_set_serial_info(struct mxser_port *info, ...@@ -1403,33 +1398,33 @@ static int mxser_set_serial_info(struct mxser_port *info,
new_serial.port != info->ioaddr) new_serial.port != info->ioaddr)
return -EINVAL; return -EINVAL;
flags = info->flags & ASYNC_SPD_MASK; flags = info->port.flags & ASYNC_SPD_MASK;
if (!capable(CAP_SYS_ADMIN)) { if (!capable(CAP_SYS_ADMIN)) {
if ((new_serial.baud_base != info->baud_base) || if ((new_serial.baud_base != info->baud_base) ||
(new_serial.close_delay != info->close_delay) || (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; return -EPERM;
info->flags = ((info->flags & ~ASYNC_USR_MASK) | info->port.flags = ((info->port.flags & ~ASYNC_USR_MASK) |
(new_serial.flags & ASYNC_USR_MASK)); (new_serial.flags & ASYNC_USR_MASK));
} else { } else {
/* /*
* OK, past this point, all the error checking has been done. * OK, past this point, all the error checking has been done.
* At this point, we start making changes..... * 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)); (new_serial.flags & ASYNC_FLAGS));
info->close_delay = new_serial.close_delay * HZ / 100; info->close_delay = new_serial.close_delay * HZ / 100;
info->closing_wait = new_serial.closing_wait * HZ / 100; info->closing_wait = new_serial.closing_wait * HZ / 100;
info->tty->low_latency = info->port.tty->low_latency =
(info->flags & ASYNC_LOW_LATENCY) ? 1 : 0; (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
info->tty->low_latency = 0; info->port.tty->low_latency = 0;
if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST && if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST &&
(new_serial.baud_base != info->baud_base || (new_serial.baud_base != info->baud_base ||
new_serial.custom_divisor != new_serial.custom_divisor !=
info->custom_divisor)) { info->custom_divisor)) {
baud = new_serial.baud_base / new_serial.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, ...@@ -1437,8 +1432,8 @@ static int mxser_set_serial_info(struct mxser_port *info,
process_txrx_fifo(info); process_txrx_fifo(info);
if (info->flags & ASYNC_INITIALIZED) { if (info->port.flags & ASYNC_INITIALIZED) {
if (flags != (info->flags & ASYNC_SPD_MASK)) { if (flags != (info->port.flags & ASYNC_SPD_MASK)) {
spin_lock_irqsave(&info->slock, sl_flags); spin_lock_irqsave(&info->slock, sl_flags);
mxser_change_speed(info, NULL); mxser_change_speed(info, NULL);
spin_unlock_irqrestore(&info->slock, sl_flags); spin_unlock_irqrestore(&info->slock, sl_flags);
...@@ -1693,12 +1688,12 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp) ...@@ -1693,12 +1688,12 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
continue; continue;
} }
if (!port->tty || !port->tty->termios) if (!port->port.tty || !port->port.tty->termios)
GMStatus[i].cflag = GMStatus[i].cflag =
port->normal_termios.c_cflag; port->normal_termios.c_cflag;
else else
GMStatus[i].cflag = GMStatus[i].cflag =
port->tty->termios->c_cflag; port->port.tty->termios->c_cflag;
status = inb(port->ioaddr + UART_MSR); status = inb(port->ioaddr + UART_MSR);
if (status & 0x80 /*UART_MSR_DCD */ ) if (status & 0x80 /*UART_MSR_DCD */ )
...@@ -1755,14 +1750,14 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp) ...@@ -1755,14 +1750,14 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
mon_data_ext.modem_status[i] = mon_data_ext.modem_status[i] =
port->mon_data.modem_status; port->mon_data.modem_status;
mon_data_ext.baudrate[i] = 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; cflag = port->normal_termios.c_cflag;
iflag = port->normal_termios.c_iflag; iflag = port->normal_termios.c_iflag;
} else { } else {
cflag = port->tty->termios->c_cflag; cflag = port->port.tty->termios->c_cflag;
iflag = port->tty->termios->c_iflag; iflag = port->port.tty->termios->c_iflag;
} }
mon_data_ext.databits[i] = cflag & CSIZE; mon_data_ext.databits[i] = cflag & CSIZE;
...@@ -1989,7 +1984,7 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file, ...@@ -1989,7 +1984,7 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file,
else else
info->mon_data.hold_reason |= NPPI_NOTIFY_XOFFXENT; 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; info->mon_data.hold_reason |= NPPI_NOTIFY_CTSHOLD;
else else
info->mon_data.hold_reason &= ~NPPI_NOTIFY_CTSHOLD; info->mon_data.hold_reason &= ~NPPI_NOTIFY_CTSHOLD;
...@@ -2038,7 +2033,7 @@ static void mxser_stoprx(struct tty_struct *tty) ...@@ -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; info->MCR &= ~UART_MCR_RTS;
outb(info->MCR, info->ioaddr + UART_MCR); outb(info->MCR, info->ioaddr + UART_MCR);
} }
...@@ -2075,7 +2070,7 @@ static void mxser_unthrottle(struct tty_struct *tty) ...@@ -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; info->MCR |= UART_MCR_RTS;
outb(info->MCR, info->ioaddr + UART_MCR); outb(info->MCR, info->ioaddr + UART_MCR);
} }
...@@ -2106,7 +2101,7 @@ static void mxser_start(struct tty_struct *tty) ...@@ -2106,7 +2101,7 @@ static void mxser_start(struct tty_struct *tty)
unsigned long flags; unsigned long flags;
spin_lock_irqsave(&info->slock, 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); outb(info->IER & ~UART_IER_THRI, info->ioaddr + UART_IER);
info->IER |= UART_IER_THRI; info->IER |= UART_IER_THRI;
outb(info->IER, info->ioaddr + UART_IER); outb(info->IER, info->ioaddr + UART_IER);
...@@ -2220,10 +2215,10 @@ static void mxser_hangup(struct tty_struct *tty) ...@@ -2220,10 +2215,10 @@ static void mxser_hangup(struct tty_struct *tty)
mxser_flush_buffer(tty); mxser_flush_buffer(tty);
mxser_shutdown(info); mxser_shutdown(info);
info->event = 0; info->event = 0;
info->count = 0; info->port.count = 0;
info->flags &= ~ASYNC_NORMAL_ACTIVE; info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
info->tty = NULL; info->port.tty = NULL;
wake_up_interruptible(&info->open_wait); wake_up_interruptible(&info->port.open_wait);
} }
/* /*
...@@ -2246,7 +2241,7 @@ static void mxser_rs_break(struct tty_struct *tty, int break_state) ...@@ -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) 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; unsigned char ch, gdl;
int ignored = 0; int ignored = 0;
int cnt = 0; int cnt = 0;
...@@ -2302,7 +2297,7 @@ static void mxser_receive_chars(struct mxser_port *port, int *status) ...@@ -2302,7 +2297,7 @@ static void mxser_receive_chars(struct mxser_port *port, int *status)
flag = TTY_BREAK; flag = TTY_BREAK;
port->icount.brk++; port->icount.brk++;
if (port->flags & ASYNC_SAK) if (port->port.flags & ASYNC_SAK)
do_SAK(tty); do_SAK(tty);
} else if (*status & UART_LSR_PE) { } else if (*status & UART_LSR_PE) {
flag = TTY_PARITY; flag = TTY_PARITY;
...@@ -2333,7 +2328,7 @@ static void mxser_receive_chars(struct mxser_port *port, int *status) ...@@ -2333,7 +2328,7 @@ static void mxser_receive_chars(struct mxser_port *port, int *status)
} while (*status & UART_LSR_DR); } while (*status & UART_LSR_DR);
end_intr: 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.rxcnt += cnt;
port->mon_data.up_rxcnt += cnt; port->mon_data.up_rxcnt += cnt;
...@@ -2354,18 +2349,18 @@ static void mxser_transmit_chars(struct mxser_port *port) ...@@ -2354,18 +2349,18 @@ static void mxser_transmit_chars(struct mxser_port *port)
if (port->x_char) { if (port->x_char) {
outb(port->x_char, port->ioaddr + UART_TX); outb(port->x_char, port->ioaddr + UART_TX);
port->x_char = 0; port->x_char = 0;
mxvar_log.txcnt[port->tty->index]++; mxvar_log.txcnt[port->port.tty->index]++;
port->mon_data.txcnt++; port->mon_data.txcnt++;
port->mon_data.up_txcnt++; port->mon_data.up_txcnt++;
port->icount.tx++; port->icount.tx++;
return; return;
} }
if (port->xmit_buf == NULL) if (port->port.xmit_buf == NULL)
return; return;
if ((port->xmit_cnt <= 0) || port->tty->stopped || if ((port->xmit_cnt <= 0) || port->port.tty->stopped ||
(port->tty->hw_stopped && (port->port.tty->hw_stopped &&
(port->type != PORT_16550A) && (port->type != PORT_16550A) &&
(!port->board->chip_flag))) { (!port->board->chip_flag))) {
port->IER &= ~UART_IER_THRI; port->IER &= ~UART_IER_THRI;
...@@ -2376,20 +2371,20 @@ static void mxser_transmit_chars(struct mxser_port *port) ...@@ -2376,20 +2371,20 @@ static void mxser_transmit_chars(struct mxser_port *port)
cnt = port->xmit_cnt; cnt = port->xmit_cnt;
count = port->xmit_fifo_size; count = port->xmit_fifo_size;
do { do {
outb(port->xmit_buf[port->xmit_tail++], outb(port->port.xmit_buf[port->xmit_tail++],
port->ioaddr + UART_TX); port->ioaddr + UART_TX);
port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE - 1); port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE - 1);
if (--port->xmit_cnt <= 0) if (--port->xmit_cnt <= 0)
break; break;
} while (--count > 0); } 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.txcnt += (cnt - port->xmit_cnt);
port->mon_data.up_txcnt += (cnt - port->xmit_cnt); port->mon_data.up_txcnt += (cnt - port->xmit_cnt);
port->icount.tx += (cnt - port->xmit_cnt); port->icount.tx += (cnt - port->xmit_cnt);
if (port->xmit_cnt < WAKEUP_CHARS) if (port->xmit_cnt < WAKEUP_CHARS)
tty_wakeup(port->tty); tty_wakeup(port->port.tty);
if (port->xmit_cnt <= 0) { if (port->xmit_cnt <= 0) {
port->IER &= ~UART_IER_THRI; port->IER &= ~UART_IER_THRI;
...@@ -2440,9 +2435,9 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id) ...@@ -2440,9 +2435,9 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id)
if (iir & UART_IIR_NO_INT) if (iir & UART_IIR_NO_INT)
break; break;
iir &= MOXA_MUST_IIR_MASK; iir &= MOXA_MUST_IIR_MASK;
if (!port->tty || if (!port->port.tty ||
(port->flags & ASYNC_CLOSING) || (port->port.flags & ASYNC_CLOSING) ||
!(port->flags & !(port->port.flags &
ASYNC_INITIALIZED)) { ASYNC_INITIALIZED)) {
status = inb(port->ioaddr + UART_LSR); status = inb(port->ioaddr + UART_LSR);
outb(0x27, port->ioaddr + UART_FCR); outb(0x27, port->ioaddr + UART_FCR);
...@@ -2558,7 +2553,7 @@ static int __devinit mxser_initbrd(struct mxser_board *brd, ...@@ -2558,7 +2553,7 @@ static int __devinit mxser_initbrd(struct mxser_board *brd,
if (brd->chip_flag != MOXA_OTHER_UART) if (brd->chip_flag != MOXA_OTHER_UART)
mxser_enable_must_enchance_mode(info->ioaddr); mxser_enable_must_enchance_mode(info->ioaddr);
info->flags = ASYNC_SHARE_IRQ; info->port.flags = ASYNC_SHARE_IRQ;
info->type = brd->uart_type; info->type = brd->uart_type;
process_txrx_fifo(info); process_txrx_fifo(info);
...@@ -2567,7 +2562,7 @@ static int __devinit mxser_initbrd(struct mxser_board *brd, ...@@ -2567,7 +2562,7 @@ static int __devinit mxser_initbrd(struct mxser_board *brd,
info->close_delay = 5 * HZ / 10; info->close_delay = 5 * HZ / 10;
info->closing_wait = 30 * HZ; info->closing_wait = 30 * HZ;
info->normal_termios = mxvar_sdriver->init_termios; 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); init_waitqueue_head(&info->delta_msr_wait);
memset(&info->mon_data, 0, sizeof(struct mxser_mon)); memset(&info->mon_data, 0, sizeof(struct mxser_mon));
info->err_shadow = 0; info->err_shadow = 0;
......
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