Digicom Systems Inc, makes "softmodems". What this means is simply that

you download the microcode to the DSP everytime you power on your system.
They provide a dos-program to do so, but no other support.  This commit adds
code to the sio-driver, which implement an ioctl, which will down-load the
micro-code.

To get this functionality, you must define DSI_SOFT_MODEM.

The program to actually employ the ioctl is not included, but the entire
source looks like this:

        #include <sys/ioctl.h>
        #include <stdio.h>

        main()
        {
                unsigned char buffer[100000];
                int i;

                read(0,buffer,100000);
                if((i = ioctl(1,TIOCDSIMICROCODE,buffer)) < 0)
                    perror("ioctl");
                return i;
        }

And you use it like this:
	smload < data144b.dsi > /dev/ttyid3

You need to copy the *.DSI files from the dos-media provide with your modem.
You can see what is downloaded by issuing the ATI3 command to the modem.
DSI's scheme for what code you can run on your modem isn't violated by this.

Poul-Henning Kamp
phk@freefall.cdrom.com
This commit is contained in:
Poul-Henning Kamp 1994-09-13 03:30:31 +00:00
parent 38d6a6908d
commit 5b7ffe398f
3 changed files with 492 additions and 6 deletions
sys
dev/sio
i386/isa
isa

View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
* $Id: sio.c,v 1.50 1994/08/23 07:52:23 paul Exp $
* $Id: sio.c,v 1.51 1994/08/25 10:15:28 bde Exp $
*/
#include "sio.h"
@ -278,6 +278,10 @@ static void comstart __P((struct tty *tp));
static timeout_t comwakeup;
static int tiocm_xxx2mcr __P((int tiocm_xxx));
#ifdef DSI_SOFT_MODEM
static int LoadSoftModem __P((int unit,int base_io, u_long size, u_char *ptr));
#endif /* DSI_SOFT_MODEM */
/* table and macro for fast conversion from a unit number to its com struct */
static struct com_s *p_com_addr[NSIO];
#define com_addr(unit) (p_com_addr[unit])
@ -592,6 +596,14 @@ 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))
#endif
@ -931,6 +943,7 @@ siowrite(dev, uio, flag)
mynor = minor(dev);
if (mynor & CONTROL_MASK)
return (ENODEV);
unit = MINOR_TO_UNIT(mynor);
tp = com_addr(unit)->tp;
/*
@ -1156,6 +1169,7 @@ sioioctl(dev, cmd, data, flag, p)
mynor = minor(dev);
com = com_addr(MINOR_TO_UNIT(mynor));
iobase = com->iobase;
if (mynor & CONTROL_MASK) {
struct termios *ct;
@ -1185,6 +1199,34 @@ 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);
}
@ -1218,7 +1260,6 @@ sioioctl(dev, cmd, data, flag, p)
error = ttioctl(tp, cmd, data, flag);
if (error >= 0)
return (error);
iobase = com->iobase;
s = spltty();
switch (cmd) {
case TIOCSBRK:
@ -1954,4 +1995,125 @@ 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",ptr);
outb(base_io+7,0x00); \
outb(base_io+3,data_0187); \
outb(base_io+4,data_0188); \
return EIO;
}
#endif /* DSI_SOFT_MODEM */
#endif /* NSIO > 0 */

View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
* $Id: sio.c,v 1.50 1994/08/23 07:52:23 paul Exp $
* $Id: sio.c,v 1.51 1994/08/25 10:15:28 bde Exp $
*/
#include "sio.h"
@ -278,6 +278,10 @@ static void comstart __P((struct tty *tp));
static timeout_t comwakeup;
static int tiocm_xxx2mcr __P((int tiocm_xxx));
#ifdef DSI_SOFT_MODEM
static int LoadSoftModem __P((int unit,int base_io, u_long size, u_char *ptr));
#endif /* DSI_SOFT_MODEM */
/* table and macro for fast conversion from a unit number to its com struct */
static struct com_s *p_com_addr[NSIO];
#define com_addr(unit) (p_com_addr[unit])
@ -592,6 +596,14 @@ 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))
#endif
@ -931,6 +943,7 @@ siowrite(dev, uio, flag)
mynor = minor(dev);
if (mynor & CONTROL_MASK)
return (ENODEV);
unit = MINOR_TO_UNIT(mynor);
tp = com_addr(unit)->tp;
/*
@ -1156,6 +1169,7 @@ sioioctl(dev, cmd, data, flag, p)
mynor = minor(dev);
com = com_addr(MINOR_TO_UNIT(mynor));
iobase = com->iobase;
if (mynor & CONTROL_MASK) {
struct termios *ct;
@ -1185,6 +1199,34 @@ 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);
}
@ -1218,7 +1260,6 @@ sioioctl(dev, cmd, data, flag, p)
error = ttioctl(tp, cmd, data, flag);
if (error >= 0)
return (error);
iobase = com->iobase;
s = spltty();
switch (cmd) {
case TIOCSBRK:
@ -1954,4 +1995,125 @@ 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",ptr);
outb(base_io+7,0x00); \
outb(base_io+3,data_0187); \
outb(base_io+4,data_0188); \
return EIO;
}
#endif /* DSI_SOFT_MODEM */
#endif /* NSIO > 0 */

View File

@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
* $Id: sio.c,v 1.50 1994/08/23 07:52:23 paul Exp $
* $Id: sio.c,v 1.51 1994/08/25 10:15:28 bde Exp $
*/
#include "sio.h"
@ -278,6 +278,10 @@ static void comstart __P((struct tty *tp));
static timeout_t comwakeup;
static int tiocm_xxx2mcr __P((int tiocm_xxx));
#ifdef DSI_SOFT_MODEM
static int LoadSoftModem __P((int unit,int base_io, u_long size, u_char *ptr));
#endif /* DSI_SOFT_MODEM */
/* table and macro for fast conversion from a unit number to its com struct */
static struct com_s *p_com_addr[NSIO];
#define com_addr(unit) (p_com_addr[unit])
@ -592,6 +596,14 @@ 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))
#endif
@ -931,6 +943,7 @@ siowrite(dev, uio, flag)
mynor = minor(dev);
if (mynor & CONTROL_MASK)
return (ENODEV);
unit = MINOR_TO_UNIT(mynor);
tp = com_addr(unit)->tp;
/*
@ -1156,6 +1169,7 @@ sioioctl(dev, cmd, data, flag, p)
mynor = minor(dev);
com = com_addr(MINOR_TO_UNIT(mynor));
iobase = com->iobase;
if (mynor & CONTROL_MASK) {
struct termios *ct;
@ -1185,6 +1199,34 @@ 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);
}
@ -1218,7 +1260,6 @@ sioioctl(dev, cmd, data, flag, p)
error = ttioctl(tp, cmd, data, flag);
if (error >= 0)
return (error);
iobase = com->iobase;
s = spltty();
switch (cmd) {
case TIOCSBRK:
@ -1954,4 +1995,125 @@ 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",ptr);
outb(base_io+7,0x00); \
outb(base_io+3,data_0187); \
outb(base_io+4,data_0188); \
return EIO;
}
#endif /* DSI_SOFT_MODEM */
#endif /* NSIO > 0 */