Commit 3306ce3d authored by Jiri Slaby's avatar Jiri Slaby Committed by Linus Torvalds
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[PATCH] Char: mxser_new, upgrade to 1.9.1



Change cloned experimental driver according to original 1.9.1 moxa driver.
Some int->ulong conversions, outb ~UART_IER_THRI constant.  Remove commented
stuff.

I also added printk line with info, if somebody wants to test it, he may
contact me as I can potentially debug the driver with him or just to confirm
it works properly.
Signed-off-by: default avatarJiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: default avatarAndrew Morton <akpm@osdl.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
parent 771f2d1a
/*
* mxser.c -- MOXA Smartio/Industio family multiport serial driver.
*
* Copyright (C) 1999-2001 Moxa Technologies (support@moxa.com.tw).
* Copyright (C) 1999-2006 Moxa Technologies (support@moxa.com.tw).
*
* This code is loosely based on the Linux serial driver, written by
* Linus Torvalds, Theodore T'so and others.
......@@ -20,15 +20,6 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*
* Original release 10/26/00
*
* 02/06/01 Support MOXA Industio family boards.
* 02/06/01 Support TIOCGICOUNT.
* 02/06/01 Fix the problem for connecting to serial mouse.
* 02/06/01 Fix the problem for H/W flow control.
* 02/06/01 Fix the compling warning when CONFIG_PCI
* don't be defined.
*
* Fed through a cleanup, indent and remove of non 2.6 code by Alan Cox
* <alan@redhat.com>. The original 1.8 code is available on www.moxa.com.
* - Fixed x86_64 cleanness
......@@ -66,7 +57,7 @@
#include "mxser_new.h"
#define MXSER_VERSION "1.8"
#define MXSER_VERSION "1.9.1"
#define MXSERMAJOR 174
#define MXSERCUMAJOR 175
......@@ -76,7 +67,7 @@
#define MXSER_BOARDS 4 /* Max. boards */
#define MXSER_PORTS 32 /* Max. ports */
#define MXSER_PORTS_PER_BOARD 8 /* Max. ports per board */
#define MXSER_ISR_PASS_LIMIT 256
#define MXSER_ISR_PASS_LIMIT 99999L
#define MXSER_ERR_IOADDR -1
#define MXSER_ERR_IRQ -2
......@@ -125,6 +116,9 @@ enum {
MXSER_BOARD_CP118U,
MXSER_BOARD_CP102UL,
MXSER_BOARD_CP102U,
MXSER_BOARD_CP118EL,
MXSER_BOARD_CP168EL,
MXSER_BOARD_CP104EL
};
static char *mxser_brdname[] = {
......@@ -149,6 +143,9 @@ static char *mxser_brdname[] = {
"CP-118U series",
"CP-102UL series",
"CP-102U series",
"CP-118EL series",
"CP-168EL series",
"CP-104EL series"
};
static int mxser_numports[] = {
......@@ -173,6 +170,9 @@ static int mxser_numports[] = {
8, /* CP118U */
2, /* CP102UL */
2, /* CP102U */
8, /* CP118EL */
8, /* CP168EL */
4 /* CP104EL */
};
#define UART_TYPE_NUM 2
......@@ -205,22 +205,43 @@ static const struct mxpciuart_info Gpci_uart_info[UART_INFO_NUM] = {
#ifdef CONFIG_PCI
static struct pci_device_id mxser_pcibrds[] = {
{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C168, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_C168_PCI},
{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C104, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_C104_PCI},
{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP132, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP132},
{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP114, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP114},
{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CT114, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CT114},
{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP102},
{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP104U},
{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP168U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP168U},
{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP132U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP132U},
{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP134U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP134U},
{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104JU, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP104JU},
{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_RC7000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_RC7000},
{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP118U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP118U},
{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102UL, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP102UL},
{PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102U, PCI_ANY_ID, PCI_ANY_ID, 0, 0, MXSER_BOARD_CP102U},
{0}
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C168),
.driver_data = MXSER_BOARD_C168_PCI },
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_C104),
.driver_data = MXSER_BOARD_C104_PCI },
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP132),
.driver_data = MXSER_BOARD_CP132 },
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP114),
.driver_data = MXSER_BOARD_CP114 },
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CT114),
.driver_data = MXSER_BOARD_CT114 },
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102),
.driver_data = MXSER_BOARD_CP102 },
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104U),
.driver_data = MXSER_BOARD_CP104U },
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP168U),
.driver_data = MXSER_BOARD_CP168U },
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP132U),
.driver_data = MXSER_BOARD_CP132U },
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP134U),
.driver_data = MXSER_BOARD_CP134U },
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104JU),
.driver_data = MXSER_BOARD_CP104JU },
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_RC7000),
.driver_data = MXSER_BOARD_RC7000 },
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP118U),
.driver_data = MXSER_BOARD_CP118U },
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102UL),
.driver_data = MXSER_BOARD_CP102UL },
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP102U),
.driver_data = MXSER_BOARD_CP102U },
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP118EL),
.driver_data = MXSER_BOARD_CP118EL },
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP168EL),
.driver_data = MXSER_BOARD_CP168EL },
{ PCI_DEVICE(PCI_VENDOR_ID_MOXA, PCI_DEVICE_ID_MOXA_CP104EL),
.driver_data = MXSER_BOARD_CP104EL },
{ }
};
MODULE_DEVICE_TABLE(pci, mxser_pcibrds);
......@@ -245,7 +266,6 @@ MODULE_AUTHOR("Casper Yang");
MODULE_DESCRIPTION("MOXA Smartio/Industio Family Multiport Board Device Driver");
module_param_array(ioaddr, int, NULL, 0);
module_param(ttymajor, int, 0);
module_param(calloutmajor, int, 0);
module_param(verbose, bool, 0);
MODULE_LICENSE("GPL");
......@@ -285,23 +305,23 @@ struct mxser_hwconf {
int board_type;
int ports;
int irq;
int vector;
int vector_mask;
unsigned long vector;
unsigned long vector_mask;
int uart_type;
int ioaddr[MXSER_PORTS_PER_BOARD];
unsigned long ioaddr[MXSER_PORTS_PER_BOARD];
int baud_base[MXSER_PORTS_PER_BOARD];
moxa_pci_info pciInfo;
int IsMoxaMustChipFlag; /* add by Victor Yu. 08-30-2002 */
int MaxCanSetBaudRate[MXSER_PORTS_PER_BOARD]; /* add by Victor Yu. 09-04-2002 */
int opmode_ioaddr[MXSER_PORTS_PER_BOARD]; /* add by Victor Yu. 01-05-2004 */
unsigned long opmode_ioaddr[MXSER_PORTS_PER_BOARD]; /* add by Victor Yu. 01-05-2004 */
};
struct mxser_struct {
int port;
int base; /* port base address */
unsigned long base; /* port base address */
int irq; /* port using irq no. */
int vector; /* port irq vector */
int vectormask; /* port vector mask */
unsigned long vector; /* port irq vector */
unsigned long vectormask; /* port vector mask */
int rx_high_water;
int rx_trigger; /* Rx fifo trigger level */
int rx_low_water;
......@@ -337,7 +357,7 @@ struct mxser_struct {
int timeout;
int IsMoxaMustChipFlag; /* add by Victor Yu. 08-30-2002 */
int MaxCanSetBaudRate; /* add by Victor Yu. 09-04-2002 */
int opmode_ioaddr; /* add by Victor Yu. 01-05-2004 */
unsigned long opmode_ioaddr; /* add by Victor Yu. 01-05-2004 */
unsigned char stop_rx;
unsigned char ldisc_stop_rx;
long realbaud;
......@@ -485,6 +505,9 @@ static int __init mxser_module_init(void)
if (verbose)
printk(KERN_DEBUG "Loading module mxser ...\n");
printk(KERN_INFO "This is mxser driver version 1.9.1 and needs TESTING."
"If your are willing to test this driver, please report to "
"jirislaby@gmail.com. Thanks.\n");
ret = mxser_init();
if (verbose)
printk(KERN_DEBUG "Done.\n");
......@@ -636,7 +659,7 @@ static int mxser_get_PCI_conf(int busnum, int devnum, int board_type, struct mxs
{
int i, j;
/* unsigned int val; */
unsigned int ioaddress;
unsigned long ioaddress;
struct pci_dev *pdev = hwconf->pciInfo.pdev;
/* io address */
......@@ -790,7 +813,7 @@ static int mxser_init(void)
/* Start finding ISA boards from module arg */
for (b = 0; b < MXSER_BOARDS && m < MXSER_BOARDS; b++) {
int cap;
unsigned long cap;
if (!(cap = ioaddr[b]))
continue;
......@@ -928,12 +951,10 @@ static void mxser_do_softint(void *private_)
tty = info->tty;
if (tty) {
if (test_and_clear_bit(MXSER_EVENT_TXLOW, &info->event))
tty_wakeup(tty);
if (test_and_clear_bit(MXSER_EVENT_HANGUP, &info->event))
tty_hangup(tty);
}
if (test_and_clear_bit(MXSER_EVENT_TXLOW, &info->event))
tty_wakeup(tty);
if (test_and_clear_bit(MXSER_EVENT_HANGUP, &info->event))
tty_hangup(tty);
}
static unsigned char mxser_get_msr(int baseaddr, int mode, int port, struct mxser_struct *info)
......@@ -979,6 +1000,7 @@ static int mxser_open(struct tty_struct *tty, struct file *filp)
/*
* Start up serial port
*/
info->count++;
retval = mxser_startup(info);
if (retval)
return retval;
......@@ -987,8 +1009,6 @@ static int mxser_open(struct tty_struct *tty, struct file *filp)
if (retval)
return retval;
info->count++;
if ((info->count == 1) && (info->flags & ASYNC_SPLIT_TERMIOS)) {
if (tty->driver->subtype == SERIAL_TYPE_NORMAL)
*tty->termios = info->normal_termios;
......@@ -1150,11 +1170,13 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou
total += c;
}
if (info->xmit_cnt && !tty->stopped && !(info->IER & UART_IER_THRI)) {
if (info->xmit_cnt && !tty->stopped
/*&& !(info->IER & UART_IER_THRI)*/) {
if (!tty->hw_stopped ||
(info->type == PORT_16550A) ||
(info->IsMoxaMustChipFlag)) {
spin_lock_irqsave(&info->slock, flags);
outb(info->IER & ~UART_IER_THRI, info->base + UART_IER);
info->IER |= UART_IER_THRI;
outb(info->IER, info->base + UART_IER);
spin_unlock_irqrestore(&info->slock, flags);
......@@ -1179,11 +1201,12 @@ static void mxser_put_char(struct tty_struct *tty, unsigned char ch)
info->xmit_head &= SERIAL_XMIT_SIZE - 1;
info->xmit_cnt++;
spin_unlock_irqrestore(&info->slock, flags);
if (!tty->stopped && !(info->IER & UART_IER_THRI)) {
if (!tty->stopped /*&& !(info->IER & UART_IER_THRI)*/) {
if (!tty->hw_stopped ||
(info->type == PORT_16550A) ||
info->IsMoxaMustChipFlag) {
spin_lock_irqsave(&info->slock, flags);
outb(info->IER & ~UART_IER_THRI, info->base + UART_IER);
info->IER |= UART_IER_THRI;
outb(info->IER, info->base + UART_IER);
spin_unlock_irqrestore(&info->slock, flags);
......@@ -1208,6 +1231,7 @@ static void mxser_flush_chars(struct tty_struct *tty)
spin_lock_irqsave(&info->slock, flags);
outb(info->IER & ~UART_IER_THRI, info->base + UART_IER);
info->IER |= UART_IER_THRI;
outb(info->IER, info->base + UART_IER);
......@@ -1228,7 +1252,12 @@ static int mxser_write_room(struct tty_struct *tty)
static int mxser_chars_in_buffer(struct tty_struct *tty)
{
struct mxser_struct *info = tty->driver_data;
return info->xmit_cnt;
int len = info->xmit_cnt;
if (!(inb(info->base + UART_LSR) & UART_LSR_THRE))
len++;
return len;
}
static void mxser_flush_buffer(struct tty_struct *tty)
......@@ -1270,7 +1299,8 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file, unsigned int c
/* following add by Victor Yu. 01-05-2004 */
if (cmd == MOXA_SET_OP_MODE || cmd == MOXA_GET_OP_MODE) {
int opmode, p;
int p;
unsigned long opmode;
static unsigned char ModeMask[] = { 0xfc, 0xf3, 0xcf, 0x3f };
int shiftbit;
unsigned char val, mask;
......@@ -1572,9 +1602,8 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
return -EFAULT;
return 0;
case MOXA_ASPP_MON_EXT: {
int status;
int opmode, p;
int shiftbit;
int status, p, shiftbit;
unsigned long opmode;
unsigned cflag, iflag;
for (i = 0; i < MXSER_PORTS; i++) {
......@@ -1654,73 +1683,52 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
static void mxser_stoprx(struct tty_struct *tty)
{
struct mxser_struct *info = tty->driver_data;
/* unsigned long flags; */
info->ldisc_stop_rx = 1;
if (I_IXOFF(tty)) {
/* MX_LOCK(&info->slock); */
/* following add by Victor Yu. 09-02-2002 */
if (info->IsMoxaMustChipFlag) {
info->IER &= ~MOXA_MUST_RECV_ISR;
outb(info->IER, info->base + UART_IER);
} else {
/* above add by Victor Yu. 09-02-2002 */
} else if (!(info->flags & ASYNC_CLOSING)) {
info->x_char = STOP_CHAR(tty);
/* mask by Victor Yu. 09-02-2002 */
/* outb(info->IER, 0); */
outb(0, info->base + UART_IER);
info->IER |= UART_IER_THRI;
/* force Tx interrupt */
outb(info->IER, info->base + UART_IER);
} /* add by Victor Yu. 09-02-2002 */
/* MX_UNLOCK(&info->slock); */
}
}
if (info->tty->termios->c_cflag & CRTSCTS) {
/* MX_LOCK(&info->slock); */
info->MCR &= ~UART_MCR_RTS;
outb(info->MCR, info->base + UART_MCR);
/* MX_UNLOCK(&info->slock); */
}
}
static void mxser_startrx(struct tty_struct *tty)
{
struct mxser_struct *info = tty->driver_data;
/* unsigned long flags; */
info->ldisc_stop_rx = 0;
if (I_IXOFF(tty)) {
if (info->x_char)
info->x_char = 0;
else {
/* MX_LOCK(&info->slock); */
/* following add by Victor Yu. 09-02-2002 */
if (info->IsMoxaMustChipFlag) {
info->IER |= MOXA_MUST_RECV_ISR;
outb(info->IER, info->base + UART_IER);
} else {
/* above add by Victor Yu. 09-02-2002 */
} else if (!(info->flags & ASYNC_CLOSING)) {
info->x_char = START_CHAR(tty);
/* mask by Victor Yu. 09-02-2002 */
/* outb(info->IER, 0); */
/* add by Victor Yu. 09-02-2002 */
outb(0, info->base + UART_IER);
/* force Tx interrupt */
info->IER |= UART_IER_THRI;
outb(info->IER, info->base + UART_IER);
} /* add by Victor Yu. 09-02-2002 */
/* MX_UNLOCK(&info->slock); */
}
}
}
if (info->tty->termios->c_cflag & CRTSCTS) {
/* MX_LOCK(&info->slock); */
info->MCR |= UART_MCR_RTS;
outb(info->MCR, info->base + UART_MCR);
/* MX_UNLOCK(&info->slock); */
}
}
......@@ -1730,22 +1738,22 @@ static void mxser_startrx(struct tty_struct *tty)
*/
static void mxser_throttle(struct tty_struct *tty)
{
/* struct mxser_struct *info = tty->driver_data; */
/* unsigned long flags; */
struct mxser_struct *info = tty->driver_data;
unsigned long flags;
/* MX_LOCK(&info->slock); */
spin_lock_irqsave(&info->slock, flags);
mxser_stoprx(tty);
/* MX_UNLOCK(&info->slock); */
spin_unlock_irqrestore(&info->slock, flags);
}
static void mxser_unthrottle(struct tty_struct *tty)
{
/* struct mxser_struct *info = tty->driver_data; */
/* unsigned long flags; */
struct mxser_struct *info = tty->driver_data;
unsigned long flags;
/* MX_LOCK(&info->slock); */
spin_lock_irqsave(&info->slock, flags);
mxser_startrx(tty);
/* MX_UNLOCK(&info->slock); */
spin_unlock_irqrestore(&info->slock, flags);
}
static void mxser_set_termios(struct tty_struct *tty, struct termios *old_termios)
......@@ -1807,7 +1815,9 @@ static void mxser_start(struct tty_struct *tty)
unsigned long flags;
spin_lock_irqsave(&info->slock, flags);
if (info->xmit_cnt && info->xmit_buf && !(info->IER & UART_IER_THRI)) {
if (info->xmit_cnt && info->xmit_buf
/* && !(info->IER & UART_IER_THRI) */) {
outb(info->IER & ~UART_IER_THRI, info->base + UART_IER);
info->IER |= UART_IER_THRI;
outb(info->IER, info->base + UART_IER);
}
......@@ -1927,6 +1937,7 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id, struct pt_regs *regs)
struct mxser_struct *port;
int max, irqbits, bits, msr;
int pass_counter = 0;
unsigned int int_cnt;
int handled = IRQ_NONE;
port = NULL;
......@@ -1957,90 +1968,77 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id, struct pt_regs *regs)
continue;
info = port + i;
/* following add by Victor Yu. 09-13-2002 */
iir = inb(info->base + UART_IIR);
if (iir & UART_IIR_NO_INT)
continue;
iir &= MOXA_MUST_IIR_MASK;
if (!info->tty) {
status = inb(info->base + UART_LSR);
outb(0x27, info->base + UART_FCR);
inb(info->base + UART_MSR);
continue;
}
/* above add by Victor Yu. 09-13-2002 */
/*
if (info->tty->flip.count < TTY_FLIPBUF_SIZE / 4) {
info->IER |= MOXA_MUST_RECV_ISR;
outb(info->IER, info->base + UART_IER);
}
*/
/* mask by Victor Yu. 09-13-2002
if ( !info->tty ||
(inb(info->base + UART_IIR) & UART_IIR_NO_INT) )
continue;
*/
/* mask by Victor Yu. 09-02-2002
status = inb(info->base + UART_LSR) & info->read_status_mask;
*/
/* following add by Victor Yu. 09-02-2002 */
status = inb(info->base + UART_LSR);
int_cnt = 0;
do {
/* following add by Victor Yu. 09-13-2002 */
iir = inb(info->base + UART_IIR);
if (iir & UART_IIR_NO_INT)
break;
iir &= MOXA_MUST_IIR_MASK;
if (!info->tty) {
status = inb(info->base + UART_LSR);
outb(0x27, info->base + UART_FCR);
inb(info->base + UART_MSR);
break;
}
/* above add by Victor Yu. 09-13-2002 */
if (status & UART_LSR_PE)
info->err_shadow |= NPPI_NOTIFY_PARITY;
if (status & UART_LSR_FE)
info->err_shadow |= NPPI_NOTIFY_FRAMING;
if (status & UART_LSR_OE)
info->err_shadow |= NPPI_NOTIFY_HW_OVERRUN;
if (status & UART_LSR_BI)
info->err_shadow |= NPPI_NOTIFY_BREAK;
spin_lock(&info->slock);
/* following add by Victor Yu. 09-02-2002 */
status = inb(info->base + UART_LSR);
if (info->IsMoxaMustChipFlag) {
/*
if ( (status & 0x02) && !(status & 0x01) ) {
outb(info->base+UART_FCR, 0x23);
continue;
}
*/
if (iir == MOXA_MUST_IIR_GDA ||
iir == MOXA_MUST_IIR_RDA ||
iir == MOXA_MUST_IIR_RTO ||
iir == MOXA_MUST_IIR_LSR)
mxser_receive_chars(info, &status);
if (status & UART_LSR_PE)
info->err_shadow |= NPPI_NOTIFY_PARITY;
if (status & UART_LSR_FE)
info->err_shadow |= NPPI_NOTIFY_FRAMING;
if (status & UART_LSR_OE)
info->err_shadow |=
NPPI_NOTIFY_HW_OVERRUN;
if (status & UART_LSR_BI)
info->err_shadow |= NPPI_NOTIFY_BREAK;
if (info->IsMoxaMustChipFlag) {
/*
if ( (status & 0x02) && !(status & 0x01) ) {
outb(info->base+UART_FCR, 0x23);
continue;
}
*/
if (iir == MOXA_MUST_IIR_GDA ||
iir == MOXA_MUST_IIR_RDA ||
iir == MOXA_MUST_IIR_RTO ||
iir == MOXA_MUST_IIR_LSR)
mxser_receive_chars(info,
&status);
} else {
/* above add by Victor Yu. 09-02-2002 */
} else {
/* above add by Victor Yu. 09-02-2002 */
status &= info->read_status_mask;
if (status & UART_LSR_DR)
mxser_receive_chars(info, &status);
}
msr = inb(info->base + UART_MSR);
if (msr & UART_MSR_ANY_DELTA) {
mxser_check_modem_status(info, msr);
}
/* following add by Victor Yu. 09-13-2002 */
if (info->IsMoxaMustChipFlag) {
if ((iir == 0x02) && (status & UART_LSR_THRE)) {
mxser_transmit_chars(info);
status &= info->read_status_mask;
if (status & UART_LSR_DR)
mxser_receive_chars(info,
&status);
}
} else {
/* above add by Victor Yu. 09-13-2002 */
msr = inb(info->base + UART_MSR);
if (msr & UART_MSR_ANY_DELTA)
mxser_check_modem_status(info, msr);
/* following add by Victor Yu. 09-13-2002 */
if (info->IsMoxaMustChipFlag) {
if (iir == 0x02 && (status &
UART_LSR_THRE))
mxser_transmit_chars(info);
} else {
/* above add by Victor Yu. 09-13-2002 */
if (status & UART_LSR_THRE) {
/* 8-2-99 by William
if ( info->x_char || (info->xmit_cnt > 0) )
*/
mxser_transmit_chars(info);
if (status & UART_LSR_THRE)
mxser_transmit_chars(info);
}
}
spin_unlock(&info->slock);
} while (int_cnt++ < MXSER_ISR_PASS_LIMIT);
}
if (pass_counter++ > MXSER_ISR_PASS_LIMIT) {
if (pass_counter++ > MXSER_ISR_PASS_LIMIT)
break; /* Prevent infinite loops */
}
}
irq_stop:
......@@ -2070,9 +2068,8 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
/* following add by Victor Yu. 09-02-2002 */
if (info->IsMoxaMustChipFlag != MOXA_OTHER_UART) {
if (*status & UART_LSR_SPECIAL) {
if (*status & UART_LSR_SPECIAL)
goto intr_old;
}
/* following add by Victor Yu. 02-11-2004 */
if (info->IsMoxaMustChipFlag == MOXA_MUST_MU860_HWID &&
(*status & MOXA_MUST_LSR_RERR))
......@@ -2097,12 +2094,6 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
ch = inb(info->base + UART_RX);
tty_insert_flip_char(tty, ch, 0);
cnt++;
/*
if ((cnt >= HI_WATER) && (info->stop_rx == 0)) {
mxser_stoprx(tty);
info->stop_rx = 1;
break;
} */
}
goto end_intr;
}
......@@ -2112,17 +2103,11 @@ static void mxser_receive_chars(struct mxser_struct *info, int *status)
do {
if (max-- < 0)
break;
/*
if ((cnt >= HI_WATER) && (info->stop_rx == 0)) {
mxser_stoprx(tty);
info->stop_rx=1;
break;
}
*/
ch = inb(info->base + UART_RX);
/* following add by Victor Yu. 09-02-2002 */
if (info->IsMoxaMustChipFlag && (*status & UART_LSR_OE) /*&& !(*status&UART_LSR_DR) */ )
if (info->IsMoxaMustChipFlag && (*status & UART_LSR_OE)
/*&& !(*status&UART_LSR_DR) */)