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first (incomplete) attempt to get cts/rts working

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This commit is contained in:
phil 1994-04-17 07:52:15 +00:00
parent 79e6634ac0
commit 08cc626223
1 changed files with 60 additions and 10 deletions
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70
sys/arch/pc532/dev/scn.c
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@ -31,7 +31,7 @@
* SUCH DAMAGE.
*
* from: @(#)com.c 7.5 (Berkeley) 5/16/91
* $Id: scn.c,v 1.7 1994/03/22 00:15:23 phil Exp $
* $Id: scn.c,v 1.8 1994/04/17 07:52:15 phil Exp $
*/
#include "scn.h"
@ -354,9 +354,11 @@ struct pc532_device *dp;
WR_ADR (u_char, rs->cmd_port, CMD_MR1);
WR_ADR (u_char, rs->mr_port, 0); /* No receiver control of RTS. */
WR_ADR (u_char, rs->mr_port, 0);
#if 0
WR_ADR (u_char, rs->mr_port, 0x80); /* Enable receiver control of RTS */
WR_ADR (u_char, rs->mr_port, 0x10); /* Enable CTS transmitter control */
#if 1
if (unit != 0) {
WR_ADR (u_char, rs->mr_port, 0x80); /* Enable receiver control of RTS */
WR_ADR (u_char, rs->mr_port, 0x10); /* Enable CTS transmitter control */
}
#endif
/* Initialize the uart structure if this is channel A. */
@ -456,7 +458,7 @@ if (unit==1) printf ("scnopen 1\n");
tp->t_iflag = TTYDEF_IFLAG;
tp->t_oflag = TTYDEF_OFLAG;
tp->t_cflag = TTYDEF_CFLAG;
/* i386 if (sc->sc_swflags & COM_SW_CLOCAL)
/* 386 if (sc->sc_swflags & COM_SW_CLOCAL)
tp->t_cflag |= CLOCAL;
if (sc->sc_swflags & COM_SW_CRTSCTS)
tp->t_cflag |= CRTSCTS; */
@ -550,6 +552,10 @@ scnwrite(dev, uio, flag)
return ((*linesw[tp->t_line].l_write)(tp, uio, flag));
}
void cts_int (struct rs232_s *rs, struct tty *tp)
{
}
#if 0
scnintr(int uart_no)
{
@ -689,9 +695,15 @@ if (line1==1)printf ("\n");
#if 0
/* RTS/CTS stuff! */
if (rs_ipcr & IPCR_CTS)
cts_int(rs0);
cts_int(rs0, tp0);
if (rs_ipcr & (IPCR_CTS << 1))
cts_int(rs1);
cts_int(rs1, tp1);
#endif
#if 0
if (rs_ipcr & ACR_DCD)
dcd_int(rs0, tp0);
if (rs_ipcr & (ACR_DCD << 1))
dcd_int(rs1, tp1);
#endif
}
}
@ -731,11 +743,13 @@ scnioctl(dev, cmd, data, flag, p)
break;
case TIOCSDTR:
WR_ADR(u_char, rs->opset_port, DTR_BIT << rs->a_or_b);
WR_ADR(u_char, rs->opset_port,
(DTR_BIT | RTS_BIT) << rs->a_or_b);
break;
case TIOCCDTR:
WR_ADR(u_char, rs->opclr_port, DTR_BIT << rs->a_or_b);
WR_ADR(u_char, rs->opclr_port,
(DTR_BIT | RTS_BIT) << rs->a_or_b);
break;
case TIOCMSET:
@ -758,8 +772,44 @@ scnioctl(dev, cmd, data, flag, p)
*(int *)data = rs->scn_bits;
break;
/* 386 case TIOCGFLAGS: {
int bits = 0;
if (sc->sc_swflags & COM_SW_SOFTCAR)
bits |= TIOCFLAG_SOFTCAR;
if (sc->sc_swflags & COM_SW_CLOCAL)
bits |= TIOCFLAG_CLOCAL;
if (sc->sc_swflags & COM_SW_CRTSCTS)
bits |= TIOCFLAG_CRTSCTS;
if (sc->sc_swflags & COM_SW_MDMBUF)
bits |= TIOCFLAG_MDMBUF;
*(int *)data = bits;
break;
}
case TIOCSFLAGS: {
int userbits, driverbits = 0;
error = suser(p->p_ucred, &p->p_acflag);
if (error != 0)
return(EPERM);
userbits = *(int *)data;
if ((userbits & TIOCFLAG_SOFTCAR) ||
(sc->sc_hwflags & COM_HW_CONSOLE))
driverbits |= COM_SW_SOFTCAR;
if (userbits & TIOCFLAG_CLOCAL)
driverbits |= COM_SW_CLOCAL;
if (userbits & TIOCFLAG_CRTSCTS)
driverbits |= COM_SW_CRTSCTS;
if (userbits & TIOCFLAG_MDMBUF)
driverbits |= COM_SW_MDMBUF;
sc->sc_swflags = driverbits;
break;
}
*/
default:
/* printf ("scn.c: bad ioctl 0x%x\n", cmd); */
return (ENOTTY);
}
return (0);