From guido@gvr.win.tue.nl Wed Sep 8 13:34:16 1993
That is because TIOCMGET was broken. Yes...this is known for some time and no, we (Bruce and me) never posted it. Why? Simply because we choose to post fixes when we fixed most of the bugs. Anyway..now that the slip problems are coming, here is a fix for correct TIOCMGET behaviour. -Guido Note: this should be tested first (Rich?). Tested by rgrimes
This commit is contained in:
Rodney W. Grimes
parent
572de91566
commit
e793dbb026
@ -41,7 +41,7 @@
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* into the patch kit. Added in sioselect
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* from com.c. Added port 4 support.
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*/
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static char rcsid[] = "$Header: /a/cvs/386BSD/src/sys/i386/isa/sio.c,v 1.6 1993/08/28 03:02:49 rgrimes Exp $";
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static char rcsid[] = "$Header: /a/cvs/386BSD/src/sys/i386/isa/sio.c,v 1.7 1993/09/08 17:38:05 rgrimes Exp $";
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#include "sio.h"
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#if NSIO > 0
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@ -270,6 +270,7 @@ static int sioprobe __P((struct isa_device *dev));
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static void compoll __P((void));
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static int comstart __P((struct tty *tp));
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static void comwakeup __P((void));
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static int tiocm2mcr __P((int));
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/* table and macro for fast conversion from a unit number to its com struct */
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static struct com_s *p_com_addr[NSIO];
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@ -975,6 +976,15 @@ comintr1(struct com_s *com)
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}
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}
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static int
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tiocm2mcr(data)
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int data;
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{
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register m = 0;
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if (data & TIOCM_DTR) m |= MCR_DTR;
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if (data & TIOCM_RTS) m |= MCR_RTS;
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return m;
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}
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int
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sioioctl(dev, cmd, data, flag, p)
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dev_t dev;
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@ -1014,16 +1024,28 @@ sioioctl(dev, cmd, data, flag, p)
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(void) commctl(com, MCR_DTR | MCR_RTS, DMBIC);
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break;
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case TIOCMSET:
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(void) commctl(com, *(int *)data, DMSET);
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(void) commctl(com, tiocm2mcr(*(int *)data), DMSET);
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break;
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case TIOCMBIS:
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(void) commctl(com, *(int *)data, DMBIS);
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(void) commctl(com, tiocm2mcr(*(int *)data), DMBIS);
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break;
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case TIOCMBIC:
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(void) commctl(com, *(int *)data, DMBIC);
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(void) commctl(com, tiocm2mcr(*(int *)data), DMBIC);
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break;
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case TIOCMGET:
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*(int *)data = commctl(com, 0, DMGET);
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{
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register int bits = 0, mode;
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mode = commctl(com, 0, DMGET);
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if (inb(com->iobase+com_ier)) bits |= TIOCM_LE; /* XXX */
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if (mode & MSR_DCD) bits |= TIOCM_CD;
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if (mode & MSR_CTS) bits |= TIOCM_CTS;
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if (mode & MSR_DSR) bits |= TIOCM_DSR;
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if (mode & (MCR_DTR<<8)) bits |= TIOCM_DTR;
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if (mode & (MCR_RTS<<8)) bits |= TIOCM_RTS;
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if (mode & (MSR_RI|MSR_TERI)) bits |= TIOCM_RI;
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*(int *)data = bits;
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}
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break;
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#ifdef COM_BIDIR
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case TIOCMSBIDIR:
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@ -1493,7 +1515,7 @@ commctl(com, bits, how)
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com->mcr_image &= ~(bits & ~MCR_IENABLE));
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break;
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case DMGET:
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bits = com->prev_modem_status;
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bits = com->prev_modem_status | (com->mcr_image << 8);
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break;
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}
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enable_intr();
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@ -41,7 +41,7 @@
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* into the patch kit. Added in sioselect
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* from com.c. Added port 4 support.
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*/
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static char rcsid[] = "$Header: /a/cvs/386BSD/src/sys/i386/isa/sio.c,v 1.6 1993/08/28 03:02:49 rgrimes Exp $";
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static char rcsid[] = "$Header: /a/cvs/386BSD/src/sys/i386/isa/sio.c,v 1.7 1993/09/08 17:38:05 rgrimes Exp $";
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#include "sio.h"
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#if NSIO > 0
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@ -270,6 +270,7 @@ static int sioprobe __P((struct isa_device *dev));
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static void compoll __P((void));
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static int comstart __P((struct tty *tp));
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static void comwakeup __P((void));
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static int tiocm2mcr __P((int));
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/* table and macro for fast conversion from a unit number to its com struct */
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static struct com_s *p_com_addr[NSIO];
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@ -975,6 +976,15 @@ comintr1(struct com_s *com)
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}
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}
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static int
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tiocm2mcr(data)
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int data;
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{
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register m = 0;
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if (data & TIOCM_DTR) m |= MCR_DTR;
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if (data & TIOCM_RTS) m |= MCR_RTS;
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return m;
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}
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int
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sioioctl(dev, cmd, data, flag, p)
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dev_t dev;
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@ -1014,16 +1024,28 @@ sioioctl(dev, cmd, data, flag, p)
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(void) commctl(com, MCR_DTR | MCR_RTS, DMBIC);
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break;
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case TIOCMSET:
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(void) commctl(com, *(int *)data, DMSET);
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(void) commctl(com, tiocm2mcr(*(int *)data), DMSET);
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break;
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case TIOCMBIS:
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(void) commctl(com, *(int *)data, DMBIS);
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(void) commctl(com, tiocm2mcr(*(int *)data), DMBIS);
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break;
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case TIOCMBIC:
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(void) commctl(com, *(int *)data, DMBIC);
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(void) commctl(com, tiocm2mcr(*(int *)data), DMBIC);
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break;
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case TIOCMGET:
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*(int *)data = commctl(com, 0, DMGET);
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{
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register int bits = 0, mode;
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mode = commctl(com, 0, DMGET);
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if (inb(com->iobase+com_ier)) bits |= TIOCM_LE; /* XXX */
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if (mode & MSR_DCD) bits |= TIOCM_CD;
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if (mode & MSR_CTS) bits |= TIOCM_CTS;
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if (mode & MSR_DSR) bits |= TIOCM_DSR;
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if (mode & (MCR_DTR<<8)) bits |= TIOCM_DTR;
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if (mode & (MCR_RTS<<8)) bits |= TIOCM_RTS;
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if (mode & (MSR_RI|MSR_TERI)) bits |= TIOCM_RI;
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*(int *)data = bits;
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}
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break;
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#ifdef COM_BIDIR
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case TIOCMSBIDIR:
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@ -1493,7 +1515,7 @@ commctl(com, bits, how)
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com->mcr_image &= ~(bits & ~MCR_IENABLE));
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break;
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case DMGET:
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bits = com->prev_modem_status;
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bits = com->prev_modem_status | (com->mcr_image << 8);
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break;
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}
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enable_intr();
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@ -41,7 +41,7 @@
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* into the patch kit. Added in sioselect
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* from com.c. Added port 4 support.
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*/
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static char rcsid[] = "$Header: /a/cvs/386BSD/src/sys/i386/isa/sio.c,v 1.6 1993/08/28 03:02:49 rgrimes Exp $";
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static char rcsid[] = "$Header: /a/cvs/386BSD/src/sys/i386/isa/sio.c,v 1.7 1993/09/08 17:38:05 rgrimes Exp $";
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#include "sio.h"
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#if NSIO > 0
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@ -270,6 +270,7 @@ static int sioprobe __P((struct isa_device *dev));
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static void compoll __P((void));
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static int comstart __P((struct tty *tp));
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static void comwakeup __P((void));
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static int tiocm2mcr __P((int));
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/* table and macro for fast conversion from a unit number to its com struct */
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static struct com_s *p_com_addr[NSIO];
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@ -975,6 +976,15 @@ comintr1(struct com_s *com)
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}
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}
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static int
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tiocm2mcr(data)
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int data;
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{
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register m = 0;
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if (data & TIOCM_DTR) m |= MCR_DTR;
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if (data & TIOCM_RTS) m |= MCR_RTS;
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return m;
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}
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int
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sioioctl(dev, cmd, data, flag, p)
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dev_t dev;
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@ -1014,16 +1024,28 @@ sioioctl(dev, cmd, data, flag, p)
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(void) commctl(com, MCR_DTR | MCR_RTS, DMBIC);
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break;
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case TIOCMSET:
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(void) commctl(com, *(int *)data, DMSET);
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(void) commctl(com, tiocm2mcr(*(int *)data), DMSET);
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break;
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case TIOCMBIS:
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(void) commctl(com, *(int *)data, DMBIS);
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(void) commctl(com, tiocm2mcr(*(int *)data), DMBIS);
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break;
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case TIOCMBIC:
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(void) commctl(com, *(int *)data, DMBIC);
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(void) commctl(com, tiocm2mcr(*(int *)data), DMBIC);
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break;
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case TIOCMGET:
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*(int *)data = commctl(com, 0, DMGET);
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{
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register int bits = 0, mode;
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mode = commctl(com, 0, DMGET);
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if (inb(com->iobase+com_ier)) bits |= TIOCM_LE; /* XXX */
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if (mode & MSR_DCD) bits |= TIOCM_CD;
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if (mode & MSR_CTS) bits |= TIOCM_CTS;
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if (mode & MSR_DSR) bits |= TIOCM_DSR;
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if (mode & (MCR_DTR<<8)) bits |= TIOCM_DTR;
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if (mode & (MCR_RTS<<8)) bits |= TIOCM_RTS;
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if (mode & (MSR_RI|MSR_TERI)) bits |= TIOCM_RI;
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*(int *)data = bits;
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}
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break;
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#ifdef COM_BIDIR
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case TIOCMSBIDIR:
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@ -1493,7 +1515,7 @@ commctl(com, bits, how)
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com->mcr_image &= ~(bits & ~MCR_IENABLE));
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break;
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case DMGET:
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bits = com->prev_modem_status;
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bits = com->prev_modem_status | (com->mcr_image << 8);
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break;
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}
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enable_intr();
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