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Diffstat (limited to 'sys/i386/isa/sio.c')
-rw-r--r--sys/i386/isa/sio.c250
1 files changed, 225 insertions, 25 deletions
diff --git a/sys/i386/isa/sio.c b/sys/i386/isa/sio.c
index 7660965a930af..b0ad5fc67eea6 100644
--- a/sys/i386/isa/sio.c
+++ b/sys/i386/isa/sio.c
@@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
- * $Id: sio.c,v 1.223 1999/01/12 01:04:37 eivind Exp $
+ * $Id: sio.c,v 1.214 1998/08/23 10:16:26 bde Exp $
*/
#include "opt_comconsole.h"
@@ -70,9 +70,6 @@
#include <machine/clock.h>
#include <machine/ipl.h>
-#ifndef SMP
-#include <machine/lock.h>
-#endif
#include <i386/isa/isa.h>
#include <i386/isa/isa_device.h>
@@ -86,7 +83,6 @@
#include "card.h"
#if NCARD > 0
-#include <sys/module.h>
#include <pccard/cardinfo.h>
#include <pccard/slot.h>
#endif
@@ -314,7 +310,6 @@ static int sioattach __P((struct isa_device *dev));
static timeout_t siobusycheck;
static timeout_t siodtrwakeup;
static void comhardclose __P((struct com_s *com));
-static ointhand2_t siointr;
static void siointr1 __P((struct com_s *com));
static int commctl __P((struct com_s *com, int bits, int how));
static int comparam __P((struct tty *tp, struct termios *t));
@@ -326,6 +321,9 @@ static timeout_t comwakeup;
static void disc_optim __P((struct tty *tp, struct termios *t,
struct com_s *com));
+#ifdef DSI_SOFT_MODEM
+static int LoadSoftModem __P((int unit,int base_io, u_long size, u_char *ptr));
+#endif /* DSI_SOFT_MODEM */
static char driver_name[] = "sio";
@@ -466,7 +464,17 @@ static int sioinit __P((struct pccard_devinfo *));
static void siounload __P((struct pccard_devinfo *));
static int card_intr __P((struct pccard_devinfo *));
-PCCARD_MODULE(sio, sioinit, siounload, card_intr, 0, tty_imask);
+static struct pccard_device sio_info = {
+ driver_name,
+ sioinit,
+ siounload,
+ card_intr,
+ 0, /* Attributes - presently unused */
+ &tty_imask /* Interrupt mask for device */
+ /* XXX - Should this also include net_imask? */
+};
+
+DATA_SET(pccarddrv_set, sio_info);
/*
* Initialize the device - called from Slot manager.
@@ -873,7 +881,6 @@ sioattach(isdp)
int s;
int unit;
- isdp->id_ointr = siointr;
isdp->id_ri_flags |= RI_FAST;
iobase = isdp->id_iobase;
unit = isdp->id_unit;
@@ -942,6 +949,12 @@ sioattach(isdp)
/* attempt to determine UART type */
printf("sio%d: type", unit);
+#ifdef DSI_SOFT_MODEM
+ if((inb(iobase+7) ^ inb(iobase+7)) & 0x80) {
+ printf(" Digicom Systems, Inc. SoftModem");
+ goto determined_type;
+ }
+#endif /* DSI_SOFT_MODEM */
#ifdef COM_MULTIPORT
if (!COM_ISMULTIPORT(isdp) && !COM_IIR_TXRDYBUG(isdp))
@@ -1456,7 +1469,7 @@ siodtrwakeup(chan)
wakeup(&com->dtr_wait);
}
-static void
+void
siointr(unit)
int unit;
{
@@ -1506,6 +1519,7 @@ 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;
@@ -1729,6 +1743,34 @@ sioioctl(dev, cmd, data, flag, p)
case TIOCGWINSZ:
bzero(data, sizeof(struct winsize));
return (0);
+#ifdef DSI_SOFT_MODEM
+ /*
+ * Download micro-code to Digicom modem.
+ */
+ case TIOCDSIMICROCODE:
+ {
+ u_long l;
+ u_char *p,*pi;
+
+ pi = (u_char*)(*(caddr_t*)data);
+ error = copyin(pi,&l,sizeof l);
+ if(error)
+ {return error;};
+ pi += sizeof l;
+
+ p = malloc(l,M_TEMP,M_NOWAIT);
+ if(!p)
+ {return ENOBUFS;}
+ error = copyin(pi,p,l);
+ if(error)
+ {free(p,M_TEMP); return error;};
+ if(error = LoadSoftModem(
+ MINOR_TO_UNIT(mynor),iobase,l,p))
+ {free(p,M_TEMP); return error;}
+ free(p,M_TEMP);
+ return(0);
+ }
+#endif /* DSI_SOFT_MODEM */
default:
return (ENOTTY);
}
@@ -1993,9 +2035,11 @@ comparam(tp, t)
int divisor;
u_char dlbh;
u_char dlbl;
+ int error;
Port_t iobase;
int s;
int unit;
+ int txtimeout;
/* do historical conversions */
if (t->c_ispeed == 0)
@@ -2061,8 +2105,54 @@ comparam(tp, t)
outb(iobase + com_fifo, com->fifo_image);
}
+ /*
+ * Some UARTs lock up if the divisor latch registers are selected
+ * while the UART is doing output (they refuse to transmit anything
+ * more until given a hard reset). Fix this by stopping filling
+ * the device buffers and waiting for them to drain. Reading the
+ * line status port outside of siointr1() might lose some receiver
+ * error bits, but that is acceptable here.
+ */
+ disable_intr();
+retry:
+ com->state &= ~CS_TTGO;
+ txtimeout = tp->t_timeout;
+ enable_intr();
+ while ((inb(com->line_status_port) & (LSR_TSRE | LSR_TXRDY))
+ != (LSR_TSRE | LSR_TXRDY)) {
+ tp->t_state |= TS_SO_OCOMPLETE;
+ error = ttysleep(tp, TSA_OCOMPLETE(tp), TTIPRI | PCATCH,
+ "siotx", hz / 100);
+ if ( txtimeout != 0
+ && (!error || error == EAGAIN)
+ && (txtimeout -= hz / 100) <= 0
+ )
+ error = EIO;
+ if (com->gone)
+ error = ENODEV;
+ if (error != 0 && error != EAGAIN) {
+ if (!(tp->t_state & TS_TTSTOP)) {
+ disable_intr();
+ com->state |= CS_TTGO;
+ enable_intr();
+ }
+ splx(s);
+ return (error);
+ }
+ }
+
disable_intr(); /* very important while com_data is hidden */
+ /*
+ * XXX - clearing CS_TTGO is not sufficient to stop further output,
+ * because siopoll() calls comstart() which usually sets it again
+ * because TS_TTSTOP is clear. Setting TS_TTSTOP would not be
+ * sufficient, for similar reasons.
+ */
+ if ((inb(com->line_status_port) & (LSR_TSRE | LSR_TXRDY))
+ != (LSR_TSRE | LSR_TXRDY))
+ goto retry;
+
if (divisor != 0) {
outb(iobase + com_cfcr, cfcr | CFCR_DLAB);
/*
@@ -2254,6 +2344,7 @@ siostop(tp, rw)
/* XXX avoid h/w bug. */
if (!com->esp)
#endif
+ /* XXX does this flush everything? */
outb(com->iobase + com_fifo,
FIFO_XMT_RST | com->fifo_image);
com->obufs[0].l_queued = FALSE;
@@ -2269,6 +2360,7 @@ siostop(tp, rw)
/* XXX avoid h/w bug. */
if (!com->esp)
#endif
+ /* XXX does this flush everything? */
outb(com->iobase + com_fifo,
FIFO_RCV_RST | com->fifo_image);
com_events -= (com->iptr - com->ibuf);
@@ -2479,18 +2571,6 @@ static void siocnclose __P((struct siocnstate *sp));
static void siocnopen __P((struct siocnstate *sp));
static void siocntxwait __P((void));
-/*
- * XXX: sciocnget() and sciocnputc() are not declared static, as they are
- * referred to from i386/i386/i386-gdbstub.c.
- */
-static cn_probe_t siocnprobe;
-static cn_init_t siocninit;
-static cn_checkc_t siocncheckc;
- cn_getc_t siocngetc;
- cn_putc_t siocnputc;
-
-CONS_DRIVER(sio, siocnprobe, siocninit, siocngetc, siocncheckc, siocnputc);
-
static void
siocntxwait()
{
@@ -2612,7 +2692,7 @@ siocnclose(sp)
outb(iobase + com_ier, sp->ier);
}
-static void
+void
siocnprobe(cp)
struct consdev *cp;
{
@@ -2678,14 +2758,14 @@ siocnprobe(cp)
}
}
-static void
+void
siocninit(cp)
struct consdev *cp;
{
comconsole = DEV_TO_UNIT(cp->cn_dev);
}
-static int
+int
siocncheckc(dev)
dev_t dev;
{
@@ -2743,6 +2823,126 @@ siocnputc(dev, c)
splx(s);
}
+#ifdef DSI_SOFT_MODEM
+/*
+ * The magic code to download microcode to a "Connection 14.4+Fax"
+ * modem from Digicom Systems Inc. Very magic.
+ */
+
+#define DSI_ERROR(str) { ptr = str; goto error; }
+static int
+LoadSoftModem(int unit, int base_io, u_long size, u_char *ptr)
+{
+ int int_c,int_k;
+ int data_0188, data_0187;
+
+ /*
+ * First see if it is a DSI SoftModem
+ */
+ if(!((inb(base_io+7) ^ inb(base_io+7)) & 0x80))
+ return ENODEV;
+
+ data_0188 = inb(base_io+4);
+ data_0187 = inb(base_io+3);
+ outb(base_io+3,0x80);
+ outb(base_io+4,0x0C);
+ outb(base_io+0,0x31);
+ outb(base_io+1,0x8C);
+ outb(base_io+7,0x10);
+ outb(base_io+7,0x19);
+
+ if(0x18 != (inb(base_io+7) & 0x1A))
+ DSI_ERROR("dsp bus not granted");
+
+ if(0x01 != (inb(base_io+7) & 0x01)) {
+ outb(base_io+7,0x18);
+ outb(base_io+7,0x19);
+ if(0x01 != (inb(base_io+7) & 0x01))
+ DSI_ERROR("program mem not granted");
+ }
+
+ int_c = 0;
+
+ while(1) {
+ if(int_c >= 7 || size <= 0x1800)
+ break;
+
+ for(int_k = 0 ; int_k < 0x800; int_k++) {
+ outb(base_io+0,*ptr++);
+ outb(base_io+1,*ptr++);
+ outb(base_io+2,*ptr++);
+ }
+
+ size -= 0x1800;
+ int_c++;
+ }
+
+ if(size > 0x1800) {
+ outb(base_io+7,0x18);
+ outb(base_io+7,0x19);
+ if(0x00 != (inb(base_io+7) & 0x01))
+ DSI_ERROR("program data not granted");
+
+ for(int_k = 0 ; int_k < 0x800; int_k++) {
+ outb(base_io+1,*ptr++);
+ outb(base_io+2,0);
+ outb(base_io+1,*ptr++);
+ outb(base_io+2,*ptr++);
+ }
+
+ size -= 0x1800;
+
+ while(size > 0x1800) {
+ for(int_k = 0 ; int_k < 0xC00; int_k++) {
+ outb(base_io+1,*ptr++);
+ outb(base_io+2,*ptr++);
+ }
+ size -= 0x1800;
+ }
+
+ if(size < 0x1800) {
+ for(int_k=0;int_k<size/2;int_k++) {
+ outb(base_io+1,*ptr++);
+ outb(base_io+2,*ptr++);
+ }
+ }
+
+ } else if (size > 0) {
+ if(int_c == 7) {
+ outb(base_io+7,0x18);
+ outb(base_io+7,0x19);
+ if(0x00 != (inb(base_io+7) & 0x01))
+ DSI_ERROR("program data not granted");
+ for(int_k = 0 ; int_k < size/3; int_k++) {
+ outb(base_io+1,*ptr++);
+ outb(base_io+2,0);
+ outb(base_io+1,*ptr++);
+ outb(base_io+2,*ptr++);
+ }
+ } else {
+ for(int_k = 0 ; int_k < size/3; int_k++) {
+ outb(base_io+0,*ptr++);
+ outb(base_io+1,*ptr++);
+ outb(base_io+2,*ptr++);
+ }
+ }
+ }
+ outb(base_io+7,0x11);
+ outb(base_io+7,3);
+
+ outb(base_io+4,data_0188 & 0xfb);
+
+ outb(base_io+3,data_0187);
+
+ return 0;
+error:
+ printf("sio%d: DSI SoftModem microcode load failed: <%s>\n",unit,ptr);
+ outb(base_io+7,0x00); \
+ outb(base_io+3,data_0187); \
+ outb(base_io+4,data_0188); \
+ return EIO;
+}
+#endif /* DSI_SOFT_MODEM */
/*
* support PnP cards if we are using 'em
@@ -2820,7 +3020,7 @@ siopnp_attach(u_long csn, u_long vend_id, char *name, struct isa_device *dev)
dev->id_iobase = d.port[0];
dev->id_irq = (1 << d.irq[0]);
- dev->id_ointr = siointr;
+ dev->id_intr = siointr;
dev->id_ri_flags = RI_FAST;
dev->id_drq = -1;
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-20 05:21:32 +0000