1. Supporting a bogus 16550A compatible PCMCIA CARD stuffs
- IIR_TXRDY is never off even if reading a IIR register.
- Know as PIAFS "Palido 321S", "DC-*S" oemed by Sharp corp.
2. Omiting a restrict probing if it's already probed by pccardd.
Note: Define a new id_flags as follows
0x40000 - NO PROBE (Already probed as serial)
0x80000 - Has a bogus IIR_TXRDY register
Sato Junichi <junichi@astec.co.jp>
Nrihiro Kumagai <kuma@slab.tnr.sharp.co.jp>
Hirao Tetsuya <ai.cs.fujitsu.co.jp>
Toshiharu Asai <asai@mbc.infoshere.or.jp>
Shin'ya Kumabuchi <kumabu@t3.rim.or.jp>
Freebsd-users-jp@jp.freebsd.org
bsd-nomads@ai.cs.fujitsu.co.jp
This commit is contained in:
amurai
parent
03ec7b3a7c
commit
3c0a128d70
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
|
||||
* $Id: sio.c,v 1.192 1997/12/28 06:20:47 bde Exp $
|
||||
* $Id: sio.c,v 1.193 1997/12/28 06:36:35 bde Exp $
|
||||
*/
|
||||
|
||||
#include "opt_comconsole.h"
|
||||
@ -143,6 +143,10 @@
|
||||
#define COM_VERBOSE(dev) ((dev)->id_flags & 0x80)
|
||||
#define COM_NOTST3(dev) ((dev)->id_flags & 0x10000)
|
||||
#define COM_ST16650A(dev) ((dev)->id_flags & 0x20000)
|
||||
#define COM_C_NOPROBE (0x40000)
|
||||
#define COM_NOPROBE(dev) ((dev)->id_flags & COM_C_NOPROBE)
|
||||
#define COM_C_IIR_TXRDYBUG (0x80000)
|
||||
#define COM_IIR_TXRDYBUG(dev) ((dev)->id_flags & COM_C_IIR_TXRDYBUG)
|
||||
#define COM_FIFOSIZE(dev) (((dev)->id_flags & 0xff000000) >> 24)
|
||||
|
||||
#define com_scr 7 /* scratch register for 16450-16550 (R/W) */
|
||||
@ -211,6 +215,7 @@ struct lbq {
|
||||
|
||||
/* com device structure */
|
||||
struct com_s {
|
||||
u_int id_flags; /* Copy isa device falgas */
|
||||
u_char state; /* miscellaneous flag bits */
|
||||
bool_t active_out; /* nonzero if the callout device is open */
|
||||
u_char cfcr_image; /* copy of value written to CFCR */
|
||||
@ -262,6 +267,7 @@ struct com_s {
|
||||
Port_t modem_ctl_port;
|
||||
Port_t line_status_port;
|
||||
Port_t modem_status_port;
|
||||
Port_t intr_ctl_port; /* Ports of IIR register */
|
||||
|
||||
struct tty *tp; /* cross reference */
|
||||
|
||||
@ -504,6 +510,10 @@ sioinit(struct pccard_devinfo *devi)
|
||||
/* Make sure it isn't already probed. */
|
||||
if (com_addr(devi->isahd.id_unit))
|
||||
return(EBUSY);
|
||||
|
||||
/* It's already probed as serial by Upper */
|
||||
devi->isahd.id_flags |= COM_C_NOPROBE;
|
||||
|
||||
/*
|
||||
* Probe the device. If a value is returned, the
|
||||
* device was found at the location.
|
||||
@ -705,6 +715,37 @@ sioprobe(dev)
|
||||
/* EXTRA DELAY? */
|
||||
outb(iobase + com_mcr, mcr_image);
|
||||
|
||||
/*
|
||||
* It's a definitly Serial PCMCIA(16550A), but still be required
|
||||
* for IIR_TXRDY implementation ( Palido 321s, DC-1S... )
|
||||
*/
|
||||
if ( COM_NOPROBE(dev) ) {
|
||||
/* Reading IIR register twice */
|
||||
for ( fn = 0; fn < 2; fn ++ ) {
|
||||
DELAY(10000);
|
||||
failures[6] = inb(iobase + com_iir);
|
||||
}
|
||||
/* Check IIR_TXRDY clear ? */
|
||||
result = IO_COMSIZE;
|
||||
if ( failures[6] & IIR_TXRDY ) {
|
||||
/* Nop, Double check with clearing IER */
|
||||
outb(iobase + com_ier, 0);
|
||||
if ( inb(iobase + com_iir) & IIR_NOPEND ) {
|
||||
/* Ok. we're familia this gang */
|
||||
dev->id_flags |= COM_C_IIR_TXRDYBUG; /* Set IIR_TXRDYBUG */
|
||||
} else {
|
||||
/* Unknow, Just omit this chip.. XXX*/
|
||||
result = 0;
|
||||
}
|
||||
} else {
|
||||
/* OK. this is well-known guys */
|
||||
dev->id_flags &= ~COM_C_IIR_TXRDYBUG; /*Clear IIR_TXRDYBUG*/
|
||||
}
|
||||
outb(iobase + com_cfcr, CFCR_8BITS);
|
||||
enable_intr();
|
||||
return( result );
|
||||
}
|
||||
|
||||
/*
|
||||
* Check that
|
||||
* o the CFCR, IER and MCR in UART hold the values written to them
|
||||
@ -875,6 +916,7 @@ sioattach(isdp)
|
||||
com->mcr_image = inb(com->modem_ctl_port);
|
||||
com->line_status_port = iobase + com_lsr;
|
||||
com->modem_status_port = iobase + com_msr;
|
||||
com->intr_ctl_port = iobase + com_ier;
|
||||
|
||||
/*
|
||||
* We don't use all the flags from <sys/ttydefaults.h> since they
|
||||
@ -911,7 +953,9 @@ sioattach(isdp)
|
||||
#endif /* DSI_SOFT_MODEM */
|
||||
|
||||
#ifdef COM_MULTIPORT
|
||||
if (!COM_ISMULTIPORT(isdp))
|
||||
if (!COM_ISMULTIPORT(isdp) && !COM_IIR_TXRDYBUG(isdp))
|
||||
#else
|
||||
if (!COM_IIR_TXRDYBUG(isdp))
|
||||
#endif
|
||||
{
|
||||
u_char scr;
|
||||
@ -1015,6 +1059,8 @@ determined_type: ;
|
||||
#endif /* COM_MULTIPORT */
|
||||
if (unit == comconsole)
|
||||
printf(", console");
|
||||
if ( COM_IIR_TXRDYBUG(isdp) )
|
||||
printf(" with a bogus IIR_TXRDY register");
|
||||
printf("\n");
|
||||
|
||||
s = spltty();
|
||||
@ -1043,6 +1089,7 @@ determined_type: ;
|
||||
unit | CALLOUT_MASK | CONTROL_LOCK_STATE, DV_CHR,
|
||||
UID_UUCP, GID_DIALER, 0660, "cuala%n", unit);
|
||||
#endif
|
||||
com->id_flags = isdp->id_flags; /* Heritate id_flags for later */
|
||||
return (1);
|
||||
}
|
||||
|
||||
@ -1182,8 +1229,13 @@ sioopen(dev, flag, mode, p)
|
||||
(void) inb(com->data_port);
|
||||
com->prev_modem_status = com->last_modem_status
|
||||
= inb(com->modem_status_port);
|
||||
outb(iobase + com_ier, IER_ERXRDY | IER_ETXRDY | IER_ERLS
|
||||
| IER_EMSC);
|
||||
if (COM_IIR_TXRDYBUG(com)) {
|
||||
outb(com->intr_ctl_port, IER_ERXRDY | IER_ERLS
|
||||
| IER_EMSC);
|
||||
} else {
|
||||
outb(com->intr_ctl_port, IER_ERXRDY | IER_ETXRDY
|
||||
| IER_ERLS | IER_EMSC);
|
||||
}
|
||||
enable_intr();
|
||||
/*
|
||||
* Handle initial DCD. Callout devices get a fake initial
|
||||
@ -1457,6 +1509,12 @@ siointr1(com)
|
||||
u_char modem_status;
|
||||
u_char *ioptr;
|
||||
u_char recv_data;
|
||||
u_char int_ident;
|
||||
u_char int_ctl;
|
||||
u_char int_ctl_new;
|
||||
|
||||
int_ctl = inb(com->intr_ctl_port);
|
||||
int_ctl_new = int_ctl;
|
||||
|
||||
while (TRUE) {
|
||||
line_status = inb(com->line_status_port);
|
||||
@ -1583,6 +1641,9 @@ if (com->iptr - com->ibuf == 8)
|
||||
++com->bytes_out;
|
||||
}
|
||||
com->obufq.l_head = ioptr;
|
||||
if (COM_IIR_TXRDYBUG(com)) {
|
||||
int_ctl_new = int_ctl | IER_ETXRDY;
|
||||
}
|
||||
if (ioptr >= com->obufq.l_tail) {
|
||||
struct lbq *qp;
|
||||
|
||||
@ -1595,6 +1656,9 @@ if (com->iptr - com->ibuf == 8)
|
||||
com->obufq.l_next = qp;
|
||||
} else {
|
||||
/* output just completed */
|
||||
if ( COM_IIR_TXRDYBUG(com) ) {
|
||||
int_ctl_new = int_ctl & ~IER_ETXRDY;
|
||||
}
|
||||
com->state &= ~CS_BUSY;
|
||||
}
|
||||
if (!(com->state & CS_ODONE)) {
|
||||
@ -1603,6 +1667,9 @@ if (com->iptr - com->ibuf == 8)
|
||||
setsofttty(); /* handle at high level ASAP */
|
||||
}
|
||||
}
|
||||
if ( COM_IIR_TXRDYBUG(com) && (int_ctl != int_ctl_new)) {
|
||||
outb(com->intr_ctl_port, int_ctl_new);
|
||||
}
|
||||
}
|
||||
|
||||
/* finished? */
|
||||
|
||||
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
|
||||
* $Id: sio.c,v 1.192 1997/12/28 06:20:47 bde Exp $
|
||||
* $Id: sio.c,v 1.193 1997/12/28 06:36:35 bde Exp $
|
||||
*/
|
||||
|
||||
#include "opt_comconsole.h"
|
||||
@ -143,6 +143,10 @@
|
||||
#define COM_VERBOSE(dev) ((dev)->id_flags & 0x80)
|
||||
#define COM_NOTST3(dev) ((dev)->id_flags & 0x10000)
|
||||
#define COM_ST16650A(dev) ((dev)->id_flags & 0x20000)
|
||||
#define COM_C_NOPROBE (0x40000)
|
||||
#define COM_NOPROBE(dev) ((dev)->id_flags & COM_C_NOPROBE)
|
||||
#define COM_C_IIR_TXRDYBUG (0x80000)
|
||||
#define COM_IIR_TXRDYBUG(dev) ((dev)->id_flags & COM_C_IIR_TXRDYBUG)
|
||||
#define COM_FIFOSIZE(dev) (((dev)->id_flags & 0xff000000) >> 24)
|
||||
|
||||
#define com_scr 7 /* scratch register for 16450-16550 (R/W) */
|
||||
@ -211,6 +215,7 @@ struct lbq {
|
||||
|
||||
/* com device structure */
|
||||
struct com_s {
|
||||
u_int id_flags; /* Copy isa device falgas */
|
||||
u_char state; /* miscellaneous flag bits */
|
||||
bool_t active_out; /* nonzero if the callout device is open */
|
||||
u_char cfcr_image; /* copy of value written to CFCR */
|
||||
@ -262,6 +267,7 @@ struct com_s {
|
||||
Port_t modem_ctl_port;
|
||||
Port_t line_status_port;
|
||||
Port_t modem_status_port;
|
||||
Port_t intr_ctl_port; /* Ports of IIR register */
|
||||
|
||||
struct tty *tp; /* cross reference */
|
||||
|
||||
@ -504,6 +510,10 @@ sioinit(struct pccard_devinfo *devi)
|
||||
/* Make sure it isn't already probed. */
|
||||
if (com_addr(devi->isahd.id_unit))
|
||||
return(EBUSY);
|
||||
|
||||
/* It's already probed as serial by Upper */
|
||||
devi->isahd.id_flags |= COM_C_NOPROBE;
|
||||
|
||||
/*
|
||||
* Probe the device. If a value is returned, the
|
||||
* device was found at the location.
|
||||
@ -705,6 +715,37 @@ sioprobe(dev)
|
||||
/* EXTRA DELAY? */
|
||||
outb(iobase + com_mcr, mcr_image);
|
||||
|
||||
/*
|
||||
* It's a definitly Serial PCMCIA(16550A), but still be required
|
||||
* for IIR_TXRDY implementation ( Palido 321s, DC-1S... )
|
||||
*/
|
||||
if ( COM_NOPROBE(dev) ) {
|
||||
/* Reading IIR register twice */
|
||||
for ( fn = 0; fn < 2; fn ++ ) {
|
||||
DELAY(10000);
|
||||
failures[6] = inb(iobase + com_iir);
|
||||
}
|
||||
/* Check IIR_TXRDY clear ? */
|
||||
result = IO_COMSIZE;
|
||||
if ( failures[6] & IIR_TXRDY ) {
|
||||
/* Nop, Double check with clearing IER */
|
||||
outb(iobase + com_ier, 0);
|
||||
if ( inb(iobase + com_iir) & IIR_NOPEND ) {
|
||||
/* Ok. we're familia this gang */
|
||||
dev->id_flags |= COM_C_IIR_TXRDYBUG; /* Set IIR_TXRDYBUG */
|
||||
} else {
|
||||
/* Unknow, Just omit this chip.. XXX*/
|
||||
result = 0;
|
||||
}
|
||||
} else {
|
||||
/* OK. this is well-known guys */
|
||||
dev->id_flags &= ~COM_C_IIR_TXRDYBUG; /*Clear IIR_TXRDYBUG*/
|
||||
}
|
||||
outb(iobase + com_cfcr, CFCR_8BITS);
|
||||
enable_intr();
|
||||
return( result );
|
||||
}
|
||||
|
||||
/*
|
||||
* Check that
|
||||
* o the CFCR, IER and MCR in UART hold the values written to them
|
||||
@ -875,6 +916,7 @@ sioattach(isdp)
|
||||
com->mcr_image = inb(com->modem_ctl_port);
|
||||
com->line_status_port = iobase + com_lsr;
|
||||
com->modem_status_port = iobase + com_msr;
|
||||
com->intr_ctl_port = iobase + com_ier;
|
||||
|
||||
/*
|
||||
* We don't use all the flags from <sys/ttydefaults.h> since they
|
||||
@ -911,7 +953,9 @@ sioattach(isdp)
|
||||
#endif /* DSI_SOFT_MODEM */
|
||||
|
||||
#ifdef COM_MULTIPORT
|
||||
if (!COM_ISMULTIPORT(isdp))
|
||||
if (!COM_ISMULTIPORT(isdp) && !COM_IIR_TXRDYBUG(isdp))
|
||||
#else
|
||||
if (!COM_IIR_TXRDYBUG(isdp))
|
||||
#endif
|
||||
{
|
||||
u_char scr;
|
||||
@ -1015,6 +1059,8 @@ determined_type: ;
|
||||
#endif /* COM_MULTIPORT */
|
||||
if (unit == comconsole)
|
||||
printf(", console");
|
||||
if ( COM_IIR_TXRDYBUG(isdp) )
|
||||
printf(" with a bogus IIR_TXRDY register");
|
||||
printf("\n");
|
||||
|
||||
s = spltty();
|
||||
@ -1043,6 +1089,7 @@ determined_type: ;
|
||||
unit | CALLOUT_MASK | CONTROL_LOCK_STATE, DV_CHR,
|
||||
UID_UUCP, GID_DIALER, 0660, "cuala%n", unit);
|
||||
#endif
|
||||
com->id_flags = isdp->id_flags; /* Heritate id_flags for later */
|
||||
return (1);
|
||||
}
|
||||
|
||||
@ -1182,8 +1229,13 @@ sioopen(dev, flag, mode, p)
|
||||
(void) inb(com->data_port);
|
||||
com->prev_modem_status = com->last_modem_status
|
||||
= inb(com->modem_status_port);
|
||||
outb(iobase + com_ier, IER_ERXRDY | IER_ETXRDY | IER_ERLS
|
||||
| IER_EMSC);
|
||||
if (COM_IIR_TXRDYBUG(com)) {
|
||||
outb(com->intr_ctl_port, IER_ERXRDY | IER_ERLS
|
||||
| IER_EMSC);
|
||||
} else {
|
||||
outb(com->intr_ctl_port, IER_ERXRDY | IER_ETXRDY
|
||||
| IER_ERLS | IER_EMSC);
|
||||
}
|
||||
enable_intr();
|
||||
/*
|
||||
* Handle initial DCD. Callout devices get a fake initial
|
||||
@ -1457,6 +1509,12 @@ siointr1(com)
|
||||
u_char modem_status;
|
||||
u_char *ioptr;
|
||||
u_char recv_data;
|
||||
u_char int_ident;
|
||||
u_char int_ctl;
|
||||
u_char int_ctl_new;
|
||||
|
||||
int_ctl = inb(com->intr_ctl_port);
|
||||
int_ctl_new = int_ctl;
|
||||
|
||||
while (TRUE) {
|
||||
line_status = inb(com->line_status_port);
|
||||
@ -1583,6 +1641,9 @@ if (com->iptr - com->ibuf == 8)
|
||||
++com->bytes_out;
|
||||
}
|
||||
com->obufq.l_head = ioptr;
|
||||
if (COM_IIR_TXRDYBUG(com)) {
|
||||
int_ctl_new = int_ctl | IER_ETXRDY;
|
||||
}
|
||||
if (ioptr >= com->obufq.l_tail) {
|
||||
struct lbq *qp;
|
||||
|
||||
@ -1595,6 +1656,9 @@ if (com->iptr - com->ibuf == 8)
|
||||
com->obufq.l_next = qp;
|
||||
} else {
|
||||
/* output just completed */
|
||||
if ( COM_IIR_TXRDYBUG(com) ) {
|
||||
int_ctl_new = int_ctl & ~IER_ETXRDY;
|
||||
}
|
||||
com->state &= ~CS_BUSY;
|
||||
}
|
||||
if (!(com->state & CS_ODONE)) {
|
||||
@ -1603,6 +1667,9 @@ if (com->iptr - com->ibuf == 8)
|
||||
setsofttty(); /* handle at high level ASAP */
|
||||
}
|
||||
}
|
||||
if ( COM_IIR_TXRDYBUG(com) && (int_ctl != int_ctl_new)) {
|
||||
outb(com->intr_ctl_port, int_ctl_new);
|
||||
}
|
||||
}
|
||||
|
||||
/* finished? */
|
||||
|
||||
@ -31,7 +31,7 @@
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
|
||||
* $Id: sio.c,v 1.192 1997/12/28 06:20:47 bde Exp $
|
||||
* $Id: sio.c,v 1.193 1997/12/28 06:36:35 bde Exp $
|
||||
*/
|
||||
|
||||
#include "opt_comconsole.h"
|
||||
@ -143,6 +143,10 @@
|
||||
#define COM_VERBOSE(dev) ((dev)->id_flags & 0x80)
|
||||
#define COM_NOTST3(dev) ((dev)->id_flags & 0x10000)
|
||||
#define COM_ST16650A(dev) ((dev)->id_flags & 0x20000)
|
||||
#define COM_C_NOPROBE (0x40000)
|
||||
#define COM_NOPROBE(dev) ((dev)->id_flags & COM_C_NOPROBE)
|
||||
#define COM_C_IIR_TXRDYBUG (0x80000)
|
||||
#define COM_IIR_TXRDYBUG(dev) ((dev)->id_flags & COM_C_IIR_TXRDYBUG)
|
||||
#define COM_FIFOSIZE(dev) (((dev)->id_flags & 0xff000000) >> 24)
|
||||
|
||||
#define com_scr 7 /* scratch register for 16450-16550 (R/W) */
|
||||
@ -211,6 +215,7 @@ struct lbq {
|
||||
|
||||
/* com device structure */
|
||||
struct com_s {
|
||||
u_int id_flags; /* Copy isa device falgas */
|
||||
u_char state; /* miscellaneous flag bits */
|
||||
bool_t active_out; /* nonzero if the callout device is open */
|
||||
u_char cfcr_image; /* copy of value written to CFCR */
|
||||
@ -262,6 +267,7 @@ struct com_s {
|
||||
Port_t modem_ctl_port;
|
||||
Port_t line_status_port;
|
||||
Port_t modem_status_port;
|
||||
Port_t intr_ctl_port; /* Ports of IIR register */
|
||||
|
||||
struct tty *tp; /* cross reference */
|
||||
|
||||
@ -504,6 +510,10 @@ sioinit(struct pccard_devinfo *devi)
|
||||
/* Make sure it isn't already probed. */
|
||||
if (com_addr(devi->isahd.id_unit))
|
||||
return(EBUSY);
|
||||
|
||||
/* It's already probed as serial by Upper */
|
||||
devi->isahd.id_flags |= COM_C_NOPROBE;
|
||||
|
||||
/*
|
||||
* Probe the device. If a value is returned, the
|
||||
* device was found at the location.
|
||||
@ -705,6 +715,37 @@ sioprobe(dev)
|
||||
/* EXTRA DELAY? */
|
||||
outb(iobase + com_mcr, mcr_image);
|
||||
|
||||
/*
|
||||
* It's a definitly Serial PCMCIA(16550A), but still be required
|
||||
* for IIR_TXRDY implementation ( Palido 321s, DC-1S... )
|
||||
*/
|
||||
if ( COM_NOPROBE(dev) ) {
|
||||
/* Reading IIR register twice */
|
||||
for ( fn = 0; fn < 2; fn ++ ) {
|
||||
DELAY(10000);
|
||||
failures[6] = inb(iobase + com_iir);
|
||||
}
|
||||
/* Check IIR_TXRDY clear ? */
|
||||
result = IO_COMSIZE;
|
||||
if ( failures[6] & IIR_TXRDY ) {
|
||||
/* Nop, Double check with clearing IER */
|
||||
outb(iobase + com_ier, 0);
|
||||
if ( inb(iobase + com_iir) & IIR_NOPEND ) {
|
||||
/* Ok. we're familia this gang */
|
||||
dev->id_flags |= COM_C_IIR_TXRDYBUG; /* Set IIR_TXRDYBUG */
|
||||
} else {
|
||||
/* Unknow, Just omit this chip.. XXX*/
|
||||
result = 0;
|
||||
}
|
||||
} else {
|
||||
/* OK. this is well-known guys */
|
||||
dev->id_flags &= ~COM_C_IIR_TXRDYBUG; /*Clear IIR_TXRDYBUG*/
|
||||
}
|
||||
outb(iobase + com_cfcr, CFCR_8BITS);
|
||||
enable_intr();
|
||||
return( result );
|
||||
}
|
||||
|
||||
/*
|
||||
* Check that
|
||||
* o the CFCR, IER and MCR in UART hold the values written to them
|
||||
@ -875,6 +916,7 @@ sioattach(isdp)
|
||||
com->mcr_image = inb(com->modem_ctl_port);
|
||||
com->line_status_port = iobase + com_lsr;
|
||||
com->modem_status_port = iobase + com_msr;
|
||||
com->intr_ctl_port = iobase + com_ier;
|
||||
|
||||
/*
|
||||
* We don't use all the flags from <sys/ttydefaults.h> since they
|
||||
@ -911,7 +953,9 @@ sioattach(isdp)
|
||||
#endif /* DSI_SOFT_MODEM */
|
||||
|
||||
#ifdef COM_MULTIPORT
|
||||
if (!COM_ISMULTIPORT(isdp))
|
||||
if (!COM_ISMULTIPORT(isdp) && !COM_IIR_TXRDYBUG(isdp))
|
||||
#else
|
||||
if (!COM_IIR_TXRDYBUG(isdp))
|
||||
#endif
|
||||
{
|
||||
u_char scr;
|
||||
@ -1015,6 +1059,8 @@ determined_type: ;
|
||||
#endif /* COM_MULTIPORT */
|
||||
if (unit == comconsole)
|
||||
printf(", console");
|
||||
if ( COM_IIR_TXRDYBUG(isdp) )
|
||||
printf(" with a bogus IIR_TXRDY register");
|
||||
printf("\n");
|
||||
|
||||
s = spltty();
|
||||
@ -1043,6 +1089,7 @@ determined_type: ;
|
||||
unit | CALLOUT_MASK | CONTROL_LOCK_STATE, DV_CHR,
|
||||
UID_UUCP, GID_DIALER, 0660, "cuala%n", unit);
|
||||
#endif
|
||||
com->id_flags = isdp->id_flags; /* Heritate id_flags for later */
|
||||
return (1);
|
||||
}
|
||||
|
||||
@ -1182,8 +1229,13 @@ sioopen(dev, flag, mode, p)
|
||||
(void) inb(com->data_port);
|
||||
com->prev_modem_status = com->last_modem_status
|
||||
= inb(com->modem_status_port);
|
||||
outb(iobase + com_ier, IER_ERXRDY | IER_ETXRDY | IER_ERLS
|
||||
| IER_EMSC);
|
||||
if (COM_IIR_TXRDYBUG(com)) {
|
||||
outb(com->intr_ctl_port, IER_ERXRDY | IER_ERLS
|
||||
| IER_EMSC);
|
||||
} else {
|
||||
outb(com->intr_ctl_port, IER_ERXRDY | IER_ETXRDY
|
||||
| IER_ERLS | IER_EMSC);
|
||||
}
|
||||
enable_intr();
|
||||
/*
|
||||
* Handle initial DCD. Callout devices get a fake initial
|
||||
@ -1457,6 +1509,12 @@ siointr1(com)
|
||||
u_char modem_status;
|
||||
u_char *ioptr;
|
||||
u_char recv_data;
|
||||
u_char int_ident;
|
||||
u_char int_ctl;
|
||||
u_char int_ctl_new;
|
||||
|
||||
int_ctl = inb(com->intr_ctl_port);
|
||||
int_ctl_new = int_ctl;
|
||||
|
||||
while (TRUE) {
|
||||
line_status = inb(com->line_status_port);
|
||||
@ -1583,6 +1641,9 @@ if (com->iptr - com->ibuf == 8)
|
||||
++com->bytes_out;
|
||||
}
|
||||
com->obufq.l_head = ioptr;
|
||||
if (COM_IIR_TXRDYBUG(com)) {
|
||||
int_ctl_new = int_ctl | IER_ETXRDY;
|
||||
}
|
||||
if (ioptr >= com->obufq.l_tail) {
|
||||
struct lbq *qp;
|
||||
|
||||
@ -1595,6 +1656,9 @@ if (com->iptr - com->ibuf == 8)
|
||||
com->obufq.l_next = qp;
|
||||
} else {
|
||||
/* output just completed */
|
||||
if ( COM_IIR_TXRDYBUG(com) ) {
|
||||
int_ctl_new = int_ctl & ~IER_ETXRDY;
|
||||
}
|
||||
com->state &= ~CS_BUSY;
|
||||
}
|
||||
if (!(com->state & CS_ODONE)) {
|
||||
@ -1603,6 +1667,9 @@ if (com->iptr - com->ibuf == 8)
|
||||
setsofttty(); /* handle at high level ASAP */
|
||||
}
|
||||
}
|
||||
if ( COM_IIR_TXRDYBUG(com) && (int_ctl != int_ctl_new)) {
|
||||
outb(com->intr_ctl_port, int_ctl_new);
|
||||
}
|
||||
}
|
||||
|
||||
/* finished? */
|
||||
|
||||
Loading…
Reference in New Issue
Block a user