New serial speed handling: First implementation

From: Alan Cox
Date: Fri Aug 25 2006 - 10:53:00 EST

Enclosed is a draft patch for the serial update which implements
arbitary speeds in the core and fixes up some drivers.

What needs doing:

Architecture Maintainer
-----------------------
Define struct termios_v1 to be the existing "old style" termios
structure
Create a struct termios which adds speed_t type fields for c_ispeed and
c_ospeed. You may wish to follow the glibc struct termios for
simplicity.
Find an unused speed value and define it for other (BOTHER). For most
platforms CBAUDEX|0 is unused.
Add ioctl values for TCGETS2/TCSETS2/TCSETSW2/TCSETSF2 to match the
existing TCGETS/SETS ioctls but with struct termios (the new version)
Add user_termios_to_kernel_termios_1 and the reverse for copying old
style termios structures


Driver Author
-------------
From the point this change goes into the base kernel the baud rate is
always in tty->termios.c_ispeed (input rate) and tty->termios.c_ospeed
(output rate). tty_get_baud_rate() will continue to give the correct
answer but does not allow for differing input/output rates if your
hardware can do it. Please move to using ispeed/ospeed directly.
In your speed changing routine set the baud rates to the one you set if
it differs from the requested speed. If you need to change it then - set
the c_cflags CBAUD bits either to the Bxxx version of the speed or
BOTHER and set c_ispeed/c_ospeed appropriately. If a lot of people need
this I will add a helper.
In your init_termios ensure that you set valid c_ispeed/c_ospeed values
to match the termios structure Bxxx value you are currently specifiying.


Compatibility
-------------
tty_get_baud_rate() remains doing the right thing
Peeking at CBAUD bits works for "old" speeds still
All the application functionality will continue with the
cfget/set*speed functions in glibc
For the moment the code handles anything except a pty (all ptys are
sorted) which forgets to set c_ispeed/c_ospeed on its init_termios. That
will become a warning in time.


Thanks to Roland for reviewing ideas and pointing out CBAUDEX|0.


diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/epca.c linux-2.6.18-rc4-mm2/drivers/char/epca.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/epca.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/epca.c 2006-08-25 14:56:58.000000000 +0100
@@ -1240,6 +1240,8 @@
pc_driver->init_termios.c_oflag = 0;
pc_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL;
pc_driver->init_termios.c_lflag = 0;
+ pc_driver->init_termios.c_ispeed = 9600;
+ pc_driver->init_termios.c_ospeed = 9600;
pc_driver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(pc_driver, &pc_ops);

@@ -1254,6 +1256,8 @@
pc_info->init_termios.c_oflag = 0;
pc_info->init_termios.c_lflag = 0;
pc_info->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL;
+ pc_info->init_termios.c_ispeed = 9600;
+ pc_info->init_termios.c_ospeed = 9600;
pc_info->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(pc_info, &info_ops);

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/generic_serial.c linux-2.6.18-rc4-mm2/drivers/char/generic_serial.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/generic_serial.c 2006-08-21 14:17:16.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/generic_serial.c 2006-08-25 14:18:47.000000000 +0100
@@ -746,11 +746,9 @@
gs_dprintk (GS_DEBUG_TERMIOS, "termios structure (%p):\n", tiosp);
}

-#if 0
/* This is an optimization that is only allowed for dumb cards */
/* Smart cards require knowledge of iflags and oflags too: that
might change hardware cooking mode.... */
-#endif
if (old_termios) {
if( (tiosp->c_iflag == old_termios->c_iflag)
&& (tiosp->c_oflag == old_termios->c_oflag)
@@ -774,14 +772,7 @@
if(!memcmp(tiosp->c_cc, old_termios->c_cc, NCC)) printk("c_cc changed\n");
}

- baudrate = tiosp->c_cflag & CBAUD;
- if (baudrate & CBAUDEX) {
- baudrate &= ~CBAUDEX;
- if ((baudrate < 1) || (baudrate > 4))
- tiosp->c_cflag &= ~CBAUDEX;
- else
- baudrate += 15;
- }
+ baudrate = tty_get_baud_rate(tty);

baudrate = gs_baudrates[baudrate];
if ((tiosp->c_cflag & CBAUD) == B38400) {
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/hvcs.c linux-2.6.18-rc4-mm2/drivers/char/hvcs.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/hvcs.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/hvcs.c 2006-08-25 14:19:19.000000000 +0100
@@ -196,7 +196,9 @@
.c_iflag = IGNBRK | IGNPAR,
.c_oflag = OPOST,
.c_cflag = B38400 | CS8 | CREAD | HUPCL,
- .c_cc = INIT_C_CC
+ .c_cc = INIT_C_CC,
+ .c_ispeed = 38400,
+ .c_ospeed = 38400
};

/*
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/hvsi.c linux-2.6.18-rc4-mm2/drivers/char/hvsi.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/hvsi.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/hvsi.c 2006-08-25 14:20:15.000000000 +0100
@@ -1159,6 +1159,8 @@
hvsi_driver->type = TTY_DRIVER_TYPE_SYSTEM;
hvsi_driver->init_termios = tty_std_termios;
hvsi_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL;
+ hvsi_driver->init_termios.c_ispeed = 9600;
+ hvsi_driver->init_termios.c_ospeed = 9600;
hvsi_driver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(hvsi_driver, &hvsi_ops);

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/istallion.c linux-2.6.18-rc4-mm2/drivers/char/istallion.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/istallion.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/istallion.c 2006-08-25 14:24:27.000000000 +0100
@@ -197,6 +197,8 @@
static struct termios stli_deftermios = {
.c_cflag = (B9600 | CS8 | CREAD | HUPCL | CLOCAL),
.c_cc = INIT_C_CC,
+ .c_ispeed = 9600,
+ .c_ospeed = 9600,
};

/*
@@ -612,16 +614,6 @@
#define MINOR2BRD(min) (((min) & 0xc0) >> 6)
#define MINOR2PORT(min) ((min) & 0x3f)

-/*
- * Define a baud rate table that converts termios baud rate selector
- * into the actual baud rate value. All baud rate calculations are based
- * on the actual baud rate required.
- */
-static unsigned int stli_baudrates[] = {
- 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800,
- 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600
-};
-
/*****************************************************************************/

/*
@@ -2747,15 +2739,7 @@
/*
* Start of by setting the baud, char size, parity and stop bit info.
*/
- pp->baudout = tiosp->c_cflag & CBAUD;
- if (pp->baudout & CBAUDEX) {
- pp->baudout &= ~CBAUDEX;
- if ((pp->baudout < 1) || (pp->baudout > 4))
- tiosp->c_cflag &= ~CBAUDEX;
- else
- pp->baudout += 15;
- }
- pp->baudout = stli_baudrates[pp->baudout];
+ pp->baudout = tty_get_baud_rate(portp->tty);
if ((tiosp->c_cflag & CBAUD) == B38400) {
if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
pp->baudout = 57600;
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/moxa.c linux-2.6.18-rc4-mm2/drivers/char/moxa.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/moxa.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/moxa.c 2006-08-25 14:57:25.000000000 +0100
@@ -259,7 +259,7 @@
static void MoxaPortDisable(int);
static long MoxaPortGetMaxBaud(int);
static long MoxaPortSetBaud(int, long);
-static int MoxaPortSetTermio(int, struct termios *);
+static int MoxaPortSetTermio(int, struct termios *, speed_t);
static int MoxaPortGetLineOut(int, int *, int *);
static void MoxaPortLineCtrl(int, int, int);
static void MoxaPortFlowCtrl(int, int, int, int, int, int);
@@ -350,6 +350,8 @@
moxaDriver->init_termios.c_oflag = 0;
moxaDriver->init_termios.c_cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL;
moxaDriver->init_termios.c_lflag = 0;
+ moxaDriver->init_termios.c_ispeed = 9600;
+ moxaDriver->init_termios.c_ospeed = 9600;
moxaDriver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(moxaDriver, &moxa_ops);

@@ -985,7 +987,7 @@
if (ts->c_iflag & IXANY)
xany = 1;
MoxaPortFlowCtrl(ch->port, rts, cts, txflow, rxflow, xany);
- MoxaPortSetTermio(ch->port, ts);
+ MoxaPortSetTermio(ch->port, ts, tty_get_baud_rate(tty));
}

static int block_till_ready(struct tty_struct *tty, struct file *filp,
@@ -1897,9 +1899,10 @@
*
* Function 12: Configure the port.
* Syntax:
- * int MoxaPortSetTermio(int port, struct termios *termio);
+ * int MoxaPortSetTermio(int port, struct termios *termio, speed_t baud);
* int port : port number (0 - 127)
* struct termios * termio : termio structure pointer
+ * speed_t baud : baud rate
*
* return: -1 : this port is invalid or termio == NULL
* 0 : setting O.K.
@@ -2179,11 +2182,10 @@
return (baud);
}

-int MoxaPortSetTermio(int port, struct termios *termio)
+int MoxaPortSetTermio(int port, struct termios *termio, speed_t baud)
{
void __iomem *ofsAddr;
tcflag_t cflag;
- long baud;
tcflag_t mode = 0;

if (moxaChkPort[port] == 0 || termio == 0)
@@ -2218,78 +2220,10 @@
mode |= MX_PARNONE;

moxafunc(ofsAddr, FC_SetDataMode, (ushort) mode);
-
- cflag &= (CBAUD | CBAUDEX);
-#ifndef B921600
-#define B921600 (B460800+1)
-#endif
- switch (cflag) {
- case B921600:
- baud = 921600L;
- break;
- case B460800:
- baud = 460800L;
- break;
- case B230400:
- baud = 230400L;
- break;
- case B115200:
- baud = 115200L;
- break;
- case B57600:
- baud = 57600L;
- break;
- case B38400:
- baud = 38400L;
- break;
- case B19200:
- baud = 19200L;
- break;
- case B9600:
- baud = 9600L;
- break;
- case B4800:
- baud = 4800L;
- break;
- case B2400:
- baud = 2400L;
- break;
- case B1800:
- baud = 1800L;
- break;
- case B1200:
- baud = 1200L;
- break;
- case B600:
- baud = 600L;
- break;
- case B300:
- baud = 300L;
- break;
- case B200:
- baud = 200L;
- break;
- case B150:
- baud = 150L;
- break;
- case B134:
- baud = 134L;
- break;
- case B110:
- baud = 110L;
- break;
- case B75:
- baud = 75L;
- break;
- case B50:
- baud = 50L;
- break;
- default:
- baud = 0;
- }
+
if ((moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_ISA) ||
(moxa_boards[port / MAX_PORTS_PER_BOARD].boardType == MOXA_BOARD_C320_PCI)) {
- if (baud == 921600L)
+ if (baud >= 921600L)
return (-1);
}
MoxaPortSetBaud(port, baud);
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/mxser.c linux-2.6.18-rc4-mm2/drivers/char/mxser.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/mxser.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/mxser.c 2006-08-25 14:29:16.000000000 +0100
@@ -748,6 +748,8 @@
mxvar_sdriver->subtype = SERIAL_TYPE_NORMAL;
mxvar_sdriver->init_termios = tty_std_termios;
mxvar_sdriver->init_termios.c_cflag = B9600|CS8|CREAD|HUPCL|CLOCAL;
+ mxvar_sdriver->init_termios.c_ispeed = 9600;
+ mxvar_sdriver->init_termios.c_ospeed = 9600;
mxvar_sdriver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(mxvar_sdriver, &mxser_ops);
mxvar_sdriver->ttys = mxvar_tty;
@@ -2540,71 +2542,7 @@
#define B921600 (B460800 +1)
#endif
if (mxser_set_baud_method[info->port] == 0) {
- switch (cflag & (CBAUD | CBAUDEX)) {
- case B921600:
- baud = 921600;
- break;
- case B460800:
- baud = 460800;
- break;
- case B230400:
- baud = 230400;
- break;
- case B115200:
- baud = 115200;
- break;
- case B57600:
- baud = 57600;
- break;
- case B38400:
- baud = 38400;
- break;
- case B19200:
- baud = 19200;
- break;
- case B9600:
- baud = 9600;
- break;
- case B4800:
- baud = 4800;
- break;
- case B2400:
- baud = 2400;
- break;
- case B1800:
- baud = 1800;
- break;
- case B1200:
- baud = 1200;
- break;
- case B600:
- baud = 600;
- break;
- case B300:
- baud = 300;
- break;
- case B200:
- baud = 200;
- break;
- case B150:
- baud = 150;
- break;
- case B134:
- baud = 134;
- break;
- case B110:
- baud = 110;
- break;
- case B75:
- baud = 75;
- break;
- case B50:
- baud = 50;
- break;
- default:
- baud = 0;
- break;
- }
+ baud = tty_get_baud_rate(info->tty);
mxser_set_baud(info, baud);
}

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/pty.c linux-2.6.18-rc4-mm2/drivers/char/pty.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/pty.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/pty.c 2006-08-25 14:54:27.000000000 +0100
@@ -272,6 +272,8 @@
pty_driver->init_termios.c_oflag = 0;
pty_driver->init_termios.c_cflag = B38400 | CS8 | CREAD;
pty_driver->init_termios.c_lflag = 0;
+ pty_driver->init_termios.c_ispeed = 38400;
+ pty_driver->init_termios.c_ospeed = 38400;
pty_driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW;
pty_driver->other = pty_slave_driver;
tty_set_operations(pty_driver, &pty_ops);
@@ -286,6 +288,8 @@
pty_slave_driver->subtype = PTY_TYPE_SLAVE;
pty_slave_driver->init_termios = tty_std_termios;
pty_slave_driver->init_termios.c_cflag = B38400 | CS8 | CREAD;
+ pty_slave_driver->init_termios.c_ispeed = 38400;
+ pty_slave_driver->init_termios.c_ospeed = 38400;
pty_slave_driver->flags = TTY_DRIVER_RESET_TERMIOS |
TTY_DRIVER_REAL_RAW;
pty_slave_driver->other = pty_driver;
@@ -366,6 +370,8 @@
ptm_driver->init_termios.c_oflag = 0;
ptm_driver->init_termios.c_cflag = B38400 | CS8 | CREAD;
ptm_driver->init_termios.c_lflag = 0;
+ ptm_driver->init_termios.c_ispeed = 38400;
+ ptm_driver->init_termios.c_ospeed = 38400;
ptm_driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW |
TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_DEVPTS_MEM;
ptm_driver->other = pts_driver;
@@ -381,6 +387,8 @@
pts_driver->subtype = PTY_TYPE_SLAVE;
pts_driver->init_termios = tty_std_termios;
pts_driver->init_termios.c_cflag = B38400 | CS8 | CREAD;
+ pts_driver->init_termios.c_ispeed = 38400;
+ pts_driver->init_termios.c_ospeed = 38400;
pts_driver->flags = TTY_DRIVER_RESET_TERMIOS | TTY_DRIVER_REAL_RAW |
TTY_DRIVER_DYNAMIC_DEV | TTY_DRIVER_DEVPTS_MEM;
pts_driver->other = ptm_driver;
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/riscom8.c linux-2.6.18-rc4-mm2/drivers/char/riscom8.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/riscom8.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/riscom8.c 2006-08-25 14:33:48.000000000 +0100
@@ -675,26 +675,12 @@
port->COR2 = 0;
port->MSVR = MSVR_RTS;

- baud = C_BAUD(tty);
-
- if (baud & CBAUDEX) {
- baud &= ~CBAUDEX;
- if (baud < 1 || baud > 2)
- port->tty->termios->c_cflag &= ~CBAUDEX;
- else
- baud += 15;
- }
- if (baud == 15) {
- if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
- baud ++;
- if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
- baud += 2;
- }
+ baud = tty_get_baud_rate(tty);

/* Select port on the board */
rc_out(bp, CD180_CAR, port_No(port));

- if (!baud_table[baud]) {
+ if (!baud) {
/* Drop DTR & exit */
bp->DTR |= (1u << port_No(port));
rc_out(bp, RC_DTR, bp->DTR);
@@ -710,7 +696,7 @@
*/

/* Set baud rate for port */
- tmp = (((RC_OSCFREQ + baud_table[baud]/2) / baud_table[baud] +
+ tmp = (((RC_OSCFREQ + baud/2) / baud +
CD180_TPC/2) / CD180_TPC);

rc_out(bp, CD180_RBPRH, (tmp >> 8) & 0xff);
@@ -718,7 +704,7 @@
rc_out(bp, CD180_RBPRL, tmp & 0xff);
rc_out(bp, CD180_TBPRL, tmp & 0xff);

- baud = (baud_table[baud] + 5) / 10; /* Estimated CPS */
+ baud = (baud + 5) / 10; /* Estimated CPS */

/* Two timer ticks seems enough to wakeup something like SLIP driver */
tmp = ((baud + HZ/2) / HZ) * 2 - CD180_NFIFO;
@@ -1640,6 +1626,8 @@
riscom_driver->init_termios = tty_std_termios;
riscom_driver->init_termios.c_cflag =
B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ riscom_driver->init_termios.c_ispeed = 9600;
+ riscom_driver->init_termios.c_ospeed = 9600;
riscom_driver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(riscom_driver, &riscom_ops);
if ((error = tty_register_driver(riscom_driver))) {
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/rocket.c linux-2.6.18-rc4-mm2/drivers/char/rocket.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/rocket.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/rocket.c 2006-08-25 14:34:54.000000000 +0100
@@ -2436,6 +2436,8 @@
rocket_driver->init_termios = tty_std_termios;
rocket_driver->init_termios.c_cflag =
B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ rocket_driver->init_termios.c_ispeed = 9600;
+ rocket_driver->init_termios.c_ospeed = 9600;
#ifdef ROCKET_SOFT_FLOW
rocket_driver->flags |= TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
#endif
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/ser_a2232.c linux-2.6.18-rc4-mm2/drivers/char/ser_a2232.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/ser_a2232.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/ser_a2232.c 2006-08-25 14:35:30.000000000 +0100
@@ -695,6 +695,8 @@
a2232_driver->init_termios = tty_std_termios;
a2232_driver->init_termios.c_cflag =
B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ a2232_driver->init_termios.c_ispeed = 9600;
+ a2232_driver->init_termios.c_ospeed = 9600;
a2232_driver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(a2232_driver, &a2232_ops);
if ((error = tty_register_driver(a2232_driver))) {
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/specialix.c linux-2.6.18-rc4-mm2/drivers/char/specialix.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/specialix.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/specialix.c 2006-08-25 14:37:42.000000000 +0100
@@ -1087,24 +1087,16 @@
port->MSVR = (sx_in(bp, CD186x_MSVR) & MSVR_RTS);
spin_unlock_irqrestore(&bp->lock, flags);
dprintk (SX_DEBUG_TERMIOS, "sx: got MSVR=%02x.\n", port->MSVR);
- baud = C_BAUD(tty);
+ baud = tty_get_baud_rate(tty);

- if (baud & CBAUDEX) {
- baud &= ~CBAUDEX;
- if (baud < 1 || baud > 2)
- port->tty->termios->c_cflag &= ~CBAUDEX;
- else
- baud += 15;
- }
- if (baud == 15) {
+ if (baud == 38400) {
if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
baud ++;
if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
baud += 2;
}

-
- if (!baud_table[baud]) {
+ if (!baud) {
/* Drop DTR & exit */
dprintk (SX_DEBUG_TERMIOS, "Dropping DTR... Hmm....\n");
if (!SX_CRTSCTS (tty)) {
@@ -1134,7 +1126,7 @@
"This is an untested option, please be carefull.\n",
port_No (port), tmp);
else
- tmp = (((SX_OSCFREQ + baud_table[baud]/2) / baud_table[baud] +
+ tmp = (((SX_OSCFREQ + baud/2) / baud +
CD186x_TPC/2) / CD186x_TPC);

if ((tmp < 0x10) && time_before(again, jiffies)) {
@@ -2420,6 +2412,8 @@
specialix_driver->init_termios = tty_std_termios;
specialix_driver->init_termios.c_cflag =
B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ specialix_driver->init_termios.c_ispeed = 9600;
+ specialix_driver->init_termios.c_ospeed = 9600;
specialix_driver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(specialix_driver, &sx_ops);

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/stallion.c linux-2.6.18-rc4-mm2/drivers/char/stallion.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/stallion.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/stallion.c 2006-08-25 14:41:06.000000000 +0100
@@ -146,6 +146,8 @@
static struct termios stl_deftermios = {
.c_cflag = (B9600 | CS8 | CREAD | HUPCL | CLOCAL),
.c_cc = INIT_C_CC,
+ .c_ispeed = 9600,
+ .c_ospeed = 9600,
};

/*
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/sx.c linux-2.6.18-rc4-mm2/drivers/char/sx.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/sx.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/sx.c 2006-08-25 14:43:48.000000000 +0100
@@ -2263,6 +2263,8 @@
sx_driver->init_termios = tty_std_termios;
sx_driver->init_termios.c_cflag =
B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ sx_driver->init_termios.c_ispeed = 9600;
+ sx_driver->init_termios.c_ospeed = 9600;
sx_driver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(sx_driver, &sx_ops);

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/synclink.c linux-2.6.18-rc4-mm2/drivers/char/synclink.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/synclink.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/synclink.c 2006-08-25 14:48:40.000000000 +0100
@@ -4404,6 +4404,8 @@
serial_driver->init_termios = tty_std_termios;
serial_driver->init_termios.c_cflag =
B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ serial_driver->init_termios.c_ispeed = 9600;
+ serial_driver->init_termios.c_ospeed = 9600;
serial_driver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(serial_driver, &mgsl_ops);
if ((rc = tty_register_driver(serial_driver)) < 0) {
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/synclink_gt.c linux-2.6.18-rc4-mm2/drivers/char/synclink_gt.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/synclink_gt.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/synclink_gt.c 2006-08-25 14:48:33.000000000 +0100
@@ -3537,6 +3537,8 @@
serial_driver->init_termios = tty_std_termios;
serial_driver->init_termios.c_cflag =
B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ serial_driver->init_termios.c_ispeed = 9600;
+ serial_driver->init_termios.c_ospeed = 9600;
serial_driver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(serial_driver, &ops);
if ((rc = tty_register_driver(serial_driver)) < 0) {
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/synclinkmp.c linux-2.6.18-rc4-mm2/drivers/char/synclinkmp.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/synclinkmp.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/synclinkmp.c 2006-08-25 14:49:17.000000000 +0100
@@ -4033,6 +4033,8 @@
serial_driver->init_termios = tty_std_termios;
serial_driver->init_termios.c_cflag =
B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ serial_driver->init_termios.c_ispeed = 9600;
+ serial_driver->init_termios.c_ospeed = 9600;
serial_driver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(serial_driver, &ops);
if ((rc = tty_register_driver(serial_driver)) < 0) {
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/tty_io.c linux-2.6.18-rc4-mm2/drivers/char/tty_io.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/tty_io.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/tty_io.c 2006-08-25 14:53:55.000000000 +0100
@@ -1250,6 +1250,21 @@
}

EXPORT_SYMBOL_GPL(tty_ldisc_flush);
+
+/**
+ * tty_reset_termios - reset terminal state
+ * @tty: tty to reset
+ *
+ * Restore a terminal to the driver default state
+ */
+
+static void tty_reset_termios(struct tty_struct *tty)
+{
+ mutex_lock(&tty->termios_mutex);
+ *tty->termios = tty->driver->init_termios;
+ tty->termios->c_ispeed = tty->termios->c_ospeed = tty_get_baud_rate(tty);
+ mutex_unlock(&tty->termios_mutex);
+}

/**
* do_tty_hangup - actual handler for hangup events
@@ -1337,11 +1352,7 @@
* N_TTY.
*/
if (tty->driver->flags & TTY_DRIVER_RESET_TERMIOS)
- {
- mutex_lock(&tty->termios_mutex);
- *tty->termios = tty->driver->init_termios;
- mutex_unlock(&tty->termios_mutex);
- }
+ tty_reset_termios(tty);

/* Defer ldisc switch */
/* tty_deferred_ldisc_switch(N_TTY);
@@ -1986,6 +1999,8 @@
*ltp_loc = ltp;
tty->termios = *tp_loc;
tty->termios_locked = *ltp_loc;
+ /* Compatibility until drivers always set this */
+ tty->termios->c_ispeed = tty->termios->c_ospeed = tty_get_baud_rate(tty);
driver->refcount++;
tty->count++;

@@ -3448,83 +3469,6 @@
tty_ldisc_deref(disc);
}

-/*
- * Routine which returns the baud rate of the tty
- *
- * Note that the baud_table needs to be kept in sync with the
- * include/asm/termbits.h file.
- */
-static int baud_table[] = {
- 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800,
- 9600, 19200, 38400, 57600, 115200, 230400, 460800,
-#ifdef __sparc__
- 76800, 153600, 307200, 614400, 921600
-#else
- 500000, 576000, 921600, 1000000, 1152000, 1500000, 2000000,
- 2500000, 3000000, 3500000, 4000000
-#endif
-};
-
-static int n_baud_table = ARRAY_SIZE(baud_table);
-
-/**
- * tty_termios_baud_rate
- * @termios: termios structure
- *
- * Convert termios baud rate data into a speed. This should be called
- * with the termios lock held if this termios is a terminal termios
- * structure. May change the termios data.
- *
- * Locking: none
- */
-
-int tty_termios_baud_rate(struct termios *termios)
-{
- unsigned int cbaud;
-
- cbaud = termios->c_cflag & CBAUD;
-
- if (cbaud & CBAUDEX) {
- cbaud &= ~CBAUDEX;
-
- if (cbaud < 1 || cbaud + 15 > n_baud_table)
- termios->c_cflag &= ~CBAUDEX;
- else
- cbaud += 15;
- }
- return baud_table[cbaud];
-}
-
-EXPORT_SYMBOL(tty_termios_baud_rate);
-
-/**
- * tty_get_baud_rate - get tty bit rates
- * @tty: tty to query
- *
- * Returns the baud rate as an integer for this terminal. The
- * termios lock must be held by the caller and the terminal bit
- * flags may be updated.
- *
- * Locking: none
- */
-
-int tty_get_baud_rate(struct tty_struct *tty)
-{
- int baud = tty_termios_baud_rate(tty->termios);
-
- if (baud == 38400 && tty->alt_speed) {
- if (!tty->warned) {
- printk(KERN_WARNING "Use of setserial/setrocket to "
- "set SPD_* flags is deprecated\n");
- tty->warned = 1;
- }
- baud = tty->alt_speed;
- }
-
- return baud;
-}
-
-EXPORT_SYMBOL(tty_get_baud_rate);

/**
* tty_flip_buffer_push - terminal
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/tty_ioctl.c linux-2.6.18-rc4-mm2/drivers/char/tty_ioctl.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/tty_ioctl.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/tty_ioctl.c 2006-08-25 11:53:29.000000000 +0100
@@ -36,6 +36,7 @@
#define TERMIOS_FLUSH 1
#define TERMIOS_WAIT 2
#define TERMIOS_TERMIO 4
+#define TERMIOS_OLD 8


/**
@@ -107,6 +108,90 @@
old->c_cc[i] : termios->c_cc[i];
}

+/*
+ * Routine which returns the baud rate of the tty
+ *
+ * Note that the baud_table needs to be kept in sync with the
+ * include/asm/termbits.h file.
+ */
+static const speed_t baud_table[] = {
+ 0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800,
+ 9600, 19200, 38400, 57600, 115200, 230400, 460800,
+#ifdef __sparc__
+ 76800, 153600, 307200, 614400, 921600
+#else
+ 500000, 576000, 921600, 1000000, 1152000, 1500000, 2000000,
+ 2500000, 3000000, 3500000, 4000000
+#endif
+};
+
+static int n_baud_table = ARRAY_SIZE(baud_table);
+
+/**
+ * tty_termios_baud_rate
+ * @termios: termios structure
+ *
+ * Convert termios baud rate data into a speed. This should be called
+ * with the termios lock held if this termios is a terminal termios
+ * structure. May change the termios data.
+ *
+ * Directional speed is not yet supported.
+ *
+ * Locking: none
+ */
+
+speed_t tty_termios_baud_rate(struct termios *termios)
+{
+ unsigned int cbaud;
+
+ cbaud = termios->c_cflag & CBAUD;
+
+ /* Magic token for arbitary speed via c_ispeed/c_ospeed */
+ if (cbaud == BOTHER)
+ return termios->c_ospeed;
+
+ if (cbaud & CBAUDEX) {
+ cbaud &= ~CBAUDEX;
+
+ if (cbaud < 1 || cbaud + 15 > n_baud_table)
+ termios->c_cflag &= ~CBAUDEX;
+ else
+ cbaud += 15;
+ }
+ return baud_table[cbaud];
+}
+
+EXPORT_SYMBOL(tty_termios_baud_rate);
+
+/**
+ * tty_get_baud_rate - get tty bit rates
+ * @tty: tty to query
+ *
+ * Returns the baud rate as an integer for this terminal. The
+ * termios lock must be held by the caller and the terminal bit
+ * flags may be updated.
+ *
+ * Locking: none
+ */
+
+speed_t tty_get_baud_rate(struct tty_struct *tty)
+{
+ speed_t baud = tty_termios_baud_rate(tty->termios);
+
+ if (baud == 38400 && tty->alt_speed) {
+ if (!tty->warned) {
+ printk(KERN_WARNING "Use of setserial/setrocket to "
+ "set SPD_* flags is deprecated\n");
+ tty->warned = 1;
+ }
+ baud = tty->alt_speed;
+ }
+
+ return baud;
+}
+
+EXPORT_SYMBOL(tty_get_baud_rate);
+
/**
* change_termios - update termios values
* @tty: tty to update
@@ -207,10 +292,20 @@
if (user_termio_to_kernel_termios(&tmp_termios,
(struct termio __user *)arg))
return -EFAULT;
+ tmp_termios.c_ispeed = tmp_termios.c_ospeed = tty_termios_baud_rate(&tmp_termios);
+ } else if (opt & TERMIOS_OLD) {
+ memcpy(&tmp_termios, tty->termios, sizeof(struct termios));
+ if (user_termios_to_kernel_termios_1(&tmp_termios,
+ (struct termios __user *)arg))
+ return -EFAULT;
+ tmp_termios.c_ispeed = tmp_termios.c_ospeed = tty_termios_baud_rate(&tmp_termios);
} else {
if (user_termios_to_kernel_termios(&tmp_termios,
(struct termios __user *)arg))
return -EFAULT;
+ /* If old style Bfoo values are used then load c_ispeed/c_ospeed with the real speed
+ so its unconditionally usable */
+ tmp_termios.c_ispeed = tmp_termios.c_ospeed = tty_termios_baud_rate(&tmp_termios);
}

ld = tty_ldisc_ref(tty);
@@ -286,8 +381,8 @@
struct sgttyb tmp;

mutex_lock(&tty->termios_mutex);
- tmp.sg_ispeed = 0;
- tmp.sg_ospeed = 0;
+ tmp.sg_ispeed = tty_get_baud_rate(tty);
+ tmp.sg_ospeed = tty_get_baud_rate(tty);
tmp.sg_erase = tty->termios->c_cc[VERASE];
tmp.sg_kill = tty->termios->c_cc[VKILL];
tmp.sg_flags = get_sgflags(tty);
@@ -351,6 +446,11 @@
termios.c_cc[VERASE] = tmp.sg_erase;
termios.c_cc[VKILL] = tmp.sg_kill;
set_sgflags(&termios, tmp.sg_flags);
+
+ termios.c_ispeed = sgttyb->sg_ispeed;
+ termios.c_ospeed = sgttyb->sg_ospeed;
+ termios.c_cflags &= ~CBAUD;
+ termios.c_cflags |= BOTHER;
mutex_unlock(&tty->termios_mutex);
change_termios(tty, &termios);
return 0;
@@ -423,24 +523,28 @@
*
* Send a high priority character to the tty even if stopped
*
- * Locking: none
- *
- * FIXME: overlapping calls with start/stop tty lose state of tty
+ * Locking: none for xchar method, write ordering for write method.
*/

-static void send_prio_char(struct tty_struct *tty, char ch)
+static int send_prio_char(struct tty_struct *tty, char ch)
{
int was_stopped = tty->stopped;

if (tty->driver->send_xchar) {
tty->driver->send_xchar(tty, ch);
- return;
+ return 0;
}
+
+ if (mutex_lock_interruptible(&tty->atomic_write_lock))
+ return -ERESTARTSYS;
+
if (was_stopped)
start_tty(tty);
tty->driver->write(tty, &ch, 1);
if (was_stopped)
stop_tty(tty);
+ mutex_unlock(&tty->atomic_write_lock);
+ return 0;
}

int n_tty_ioctl(struct tty_struct * tty, struct file * file,
@@ -478,14 +582,24 @@
return set_ltchars(real_tty, p);
#endif
case TCGETS:
- if (kernel_termios_to_user_termios((struct termios __user *)arg, real_tty->termios))
+ if (kernel_termios_to_user_termios_1((struct termios __user *)arg, real_tty->termios))
return -EFAULT;
return 0;
case TCSETSF:
- return set_termios(real_tty, p, TERMIOS_FLUSH | TERMIOS_WAIT);
+ return set_termios(real_tty, p, TERMIOS_FLUSH | TERMIOS_WAIT | TERMIOS_OLD);
case TCSETSW:
- return set_termios(real_tty, p, TERMIOS_WAIT);
+ return set_termios(real_tty, p, TERMIOS_WAIT | TERMIOS_OLD);
case TCSETS:
+ return set_termios(real_tty, p, TERMIOS_OLD);
+ case TCGETS2:
+ if (kernel_termios_to_user_termios((struct termios __user *)arg, real_tty->termios))
+ return -EFAULT;
+ return 0;
+ case TCSETSF2:
+ return set_termios(real_tty, p, TERMIOS_FLUSH | TERMIOS_WAIT);
+ case TCSETSW2:
+ return set_termios(real_tty, p, TERMIOS_WAIT);
+ case TCSETS2:
return set_termios(real_tty, p, 0);
case TCGETA:
return get_termio(real_tty, p);
@@ -514,11 +628,11 @@
break;
case TCIOFF:
if (STOP_CHAR(tty) != __DISABLED_CHAR)
- send_prio_char(tty, STOP_CHAR(tty));
+ return send_prio_char(tty, STOP_CHAR(tty));
break;
case TCION:
if (START_CHAR(tty) != __DISABLED_CHAR)
- send_prio_char(tty, START_CHAR(tty));
+ return send_prio_char(tty, START_CHAR(tty));
break;
default:
return -EINVAL;
@@ -574,6 +688,7 @@
{
int pktmode;

+ /* FIXME: audit tty->packet locking */
if (tty->driver->type != TTY_DRIVER_TYPE_PTY ||
tty->driver->subtype != PTY_TYPE_MASTER)
return -ENOTTY;
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/char/vme_scc.c linux-2.6.18-rc4-mm2/drivers/char/vme_scc.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/char/vme_scc.c 2006-08-21 14:18:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/char/vme_scc.c 2006-08-25 14:50:20.000000000 +0100
@@ -153,6 +153,8 @@
scc_driver->init_termios = tty_std_termios;
scc_driver->init_termios.c_cflag =
B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ scc_driver->init_termios.c_ispeed = 9600;
+ scc_driver->init_termios.c_ospeed = 9600;
scc_driver->flags = TTY_DRIVER_REAL_RAW;
tty_set_operations(scc_driver, &scc_ops);

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/serial/crisv10.c linux-2.6.18-rc4-mm2/drivers/serial/crisv10.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/serial/crisv10.c 2006-08-21 14:18:54.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/serial/crisv10.c 2006-08-25 13:58:48.000000000 +0100
@@ -4877,6 +4877,8 @@
driver->init_termios = tty_std_termios;
driver->init_termios.c_cflag =
B115200 | CS8 | CREAD | HUPCL | CLOCAL; /* is normally B9600 default... */
+ driver->init_termios.c_ispeed = 115200;
+ driver->init_termios.c_ospeed = 115200;
driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
driver->termios = serial_termios;
driver->termios_locked = serial_termios_locked;
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/drivers/serial/serial_core.c linux-2.6.18-rc4-mm2/drivers/serial/serial_core.c
--- linux.vanilla-2.6.18-rc4-mm2/drivers/serial/serial_core.c 2006-08-21 14:18:54.000000000 +0100
+++ linux-2.6.18-rc4-mm2/drivers/serial/serial_core.c 2006-08-25 14:10:53.000000000 +0100
@@ -2170,6 +2170,7 @@
normal->subtype = SERIAL_TYPE_NORMAL;
normal->init_termios = tty_std_termios;
normal->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL;
+ normal->init_termios.c_ispeed = normal->init_termios.c_ospeed = 9600;
normal->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_DYNAMIC_DEV;
normal->driver_state = drv;
tty_set_operations(normal, &uart_ops);
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/include/asm-i386/ioctls.h linux-2.6.18-rc4-mm2/include/asm-i386/ioctls.h
--- linux.vanilla-2.6.18-rc4-mm2/include/asm-i386/ioctls.h 2006-08-21 14:17:52.000000000 +0100
+++ linux-2.6.18-rc4-mm2/include/asm-i386/ioctls.h 2006-08-25 11:23:20.000000000 +0100
@@ -47,6 +47,12 @@
#define TIOCSBRK 0x5427 /* BSD compatibility */
#define TIOCCBRK 0x5428 /* BSD compatibility */
#define TIOCGSID 0x5429 /* Return the session ID of FD */
+
+#define TCGETS2 0x542A
+#define TCSETS2 0x542B
+#define TCSETSW2 0x542C
+#define TCSETSF2 0x542D
+
#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/include/asm-i386/termbits.h linux-2.6.18-rc4-mm2/include/asm-i386/termbits.h
--- linux.vanilla-2.6.18-rc4-mm2/include/asm-i386/termbits.h 2006-08-21 14:17:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/include/asm-i386/termbits.h 2006-08-25 11:21:16.000000000 +0100
@@ -8,6 +8,16 @@
typedef unsigned int tcflag_t;

#define NCCS 19
+
+struct termios_v1 { /* Deprecated termios */
+ tcflag_t c_iflag; /* input mode flags */
+ tcflag_t c_oflag; /* output mode flags */
+ tcflag_t c_cflag; /* control mode flags */
+ tcflag_t c_lflag; /* local mode flags */
+ cc_t c_line; /* line discipline */
+ cc_t c_cc[NCCS]; /* control characters */
+};
+
struct termios {
tcflag_t c_iflag; /* input mode flags */
tcflag_t c_oflag; /* output mode flags */
@@ -15,6 +25,8 @@
tcflag_t c_lflag; /* local mode flags */
cc_t c_line; /* line discipline */
cc_t c_cc[NCCS]; /* control characters */
+ speed_t c_ispeed; /* input speed */
+ speed_t c_ospeed; /* output speed */
};

/* c_cc characters */
@@ -118,6 +130,7 @@
#define HUPCL 0002000
#define CLOCAL 0004000
#define CBAUDEX 0010000
+#define BOTHER 0010000 /* non standard rate */
#define B57600 0010001
#define B115200 0010002
#define B230400 0010003
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/include/asm-i386/termios.h linux-2.6.18-rc4-mm2/include/asm-i386/termios.h
--- linux.vanilla-2.6.18-rc4-mm2/include/asm-i386/termios.h 2006-08-21 14:17:53.000000000 +0100
+++ linux-2.6.18-rc4-mm2/include/asm-i386/termios.h 2006-08-25 11:29:34.000000000 +0100
@@ -99,6 +99,8 @@
copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
})

+#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios_1))
+#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios_1))
#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/include/asm-x86_64/ioctls.h linux-2.6.18-rc4-mm2/include/asm-x86_64/ioctls.h
--- linux.vanilla-2.6.18-rc4-mm2/include/asm-x86_64/ioctls.h 2006-08-21 14:17:55.000000000 +0100
+++ linux-2.6.18-rc4-mm2/include/asm-x86_64/ioctls.h 2006-08-25 11:23:45.000000000 +0100
@@ -46,6 +46,12 @@
#define TIOCSBRK 0x5427 /* BSD compatibility */
#define TIOCCBRK 0x5428 /* BSD compatibility */
#define TIOCGSID 0x5429 /* Return the session ID of FD */
+
+#define TCGETS2 0x542A
+#define TCSETS2 0x542B
+#define TCSETSW2 0x542C
+#define TCSETSF2 0x542D
+
#define TIOCGPTN _IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
#define TIOCSPTLCK _IOW('T',0x31, int) /* Lock/unlock Pty */

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/include/asm-x86_64/termbits.h linux-2.6.18-rc4-mm2/include/asm-x86_64/termbits.h
--- linux.vanilla-2.6.18-rc4-mm2/include/asm-x86_64/termbits.h 2006-08-21 14:17:55.000000000 +0100
+++ linux-2.6.18-rc4-mm2/include/asm-x86_64/termbits.h 2006-08-25 11:21:05.000000000 +0100
@@ -8,6 +8,15 @@
typedef unsigned int tcflag_t;

#define NCCS 19
+struct termios_v1 {
+ tcflag_t c_iflag; /* input mode flags */
+ tcflag_t c_oflag; /* output mode flags */
+ tcflag_t c_cflag; /* control mode flags */
+ tcflag_t c_lflag; /* local mode flags */
+ cc_t c_line; /* line discipline */
+ cc_t c_cc[NCCS]; /* control characters */
+};
+
struct termios {
tcflag_t c_iflag; /* input mode flags */
tcflag_t c_oflag; /* output mode flags */
@@ -15,8 +24,11 @@
tcflag_t c_lflag; /* local mode flags */
cc_t c_line; /* line discipline */
cc_t c_cc[NCCS]; /* control characters */
+ speed_t c_ispeed; /* input speed */
+ speed_t c_ospeed; /* output speed */
};

+
/* c_cc characters */
#define VINTR 0
#define VQUIT 1
@@ -118,6 +130,7 @@
#define HUPCL 0002000
#define CLOCAL 0004000
#define CBAUDEX 0010000
+#define BOTHER 0010000 /* non standard rate */
#define B57600 0010001
#define B115200 0010002
#define B230400 0010003
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/include/asm-x86_64/termios.h linux-2.6.18-rc4-mm2/include/asm-x86_64/termios.h
--- linux.vanilla-2.6.18-rc4-mm2/include/asm-x86_64/termios.h 2006-08-21 14:17:55.000000000 +0100
+++ linux-2.6.18-rc4-mm2/include/asm-x86_64/termios.h 2006-08-25 11:54:05.000000000 +0100
@@ -98,6 +98,8 @@
copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
})

+#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios_v1))
+#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios_v1))
#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))

diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-rc4-mm2/include/linux/tty.h linux-2.6.18-rc4-mm2/include/linux/tty.h
--- linux.vanilla-2.6.18-rc4-mm2/include/linux/tty.h 2006-08-21 14:18:57.000000000 +0100
+++ linux-2.6.18-rc4-mm2/include/linux/tty.h 2006-08-25 11:52:15.000000000 +0100
@@ -294,8 +294,8 @@
extern void do_SAK(struct tty_struct *tty);
extern void disassociate_ctty(int priv);
extern void tty_flip_buffer_push(struct tty_struct *tty);
-extern int tty_get_baud_rate(struct tty_struct *tty);
-extern int tty_termios_baud_rate(struct termios *termios);
+extern speed_t tty_get_baud_rate(struct tty_struct *tty);
+extern speed_t tty_termios_baud_rate(struct termios *termios);

extern struct tty_ldisc *tty_ldisc_ref(struct tty_struct *);
extern void tty_ldisc_deref(struct tty_ldisc *);

-
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