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Date: Mon, 19 Nov 2007 14:49:10 +0000
From: Alan Cox <alan@...rguk.ukuu.org.uk>
To: jirislaby@...il.com, linux-kernel@...r.kernel.org
Subject: [PATCH] mxser/mxser_new: First pass over termios reporting for the
mxser cards
Signed-off-by: Alan Cox <alan@...hat.com>
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.24-rc2-mm1/drivers/char/mxser.c linux-2.6.24-rc2-mm1/drivers/char/mxser.c
--- linux.vanilla-2.6.24-rc2-mm1/drivers/char/mxser.c 2007-11-16 17:55:11.000000000 +0000
+++ linux-2.6.24-rc2-mm1/drivers/char/mxser.c 2007-11-16 18:19:13.000000000 +0000
@@ -1391,7 +1391,8 @@
long baud;
if (get_user(baud, (long __user *)argp))
return -EFAULT;
- mxser_set_baud(info, baud);
+ if (mxser_set_baud(info, baud) == -1)
+ return -1;
return 0;
}
case MOXA_ASPP_GETBAUD:
@@ -2517,7 +2518,13 @@
#endif
if (mxser_set_baud_method[info->port] == 0) {
baud = tty_get_baud_rate(info->tty);
- mxser_set_baud(info, baud);
+ if (mxser_set_baud(info, baud) == -1) {
+ /* Use previous rate on a failure */
+ if (old_termios) {
+ baud = tty_termios_baud_rate(old_termios);
+ tty_encode_baud_rate(info->tty, baud, baud);
+ }
+ }
}
/* byte size and parity */
@@ -2691,27 +2698,31 @@
{
int quot = 0;
unsigned char cval;
- int ret = 0;
unsigned long flags;
+ unsigned int baud;
if (!info->tty || !info->tty->termios)
- return ret;
+ return -1;
if (!(info->base))
- return ret;
+ return -1;
if (newspd > info->MaxCanSetBaudRate)
- return 0;
+ return -1;
info->realbaud = newspd;
if (newspd == 134) {
quot = (2 * info->baud_base / 269);
+ tty_encode_baud_rate(info->tty, 134, 134);
} else if (newspd) {
quot = info->baud_base / newspd;
if (quot == 0)
quot = 1;
+ baud = info->baud_base / quot;
+ tty_encode_baud_rate(info->tty, baud, baud);
} else {
quot = 0;
+ tty_encode_baud_rate(info->tty, 0, 0);
}
info->timeout = ((info->xmit_fifo_size * HZ * 10 * quot) / info->baud_base);
@@ -2727,7 +2738,7 @@
info->MCR &= ~UART_MCR_DTR;
outb(info->MCR, info->base + UART_MCR);
spin_unlock_irqrestore(&info->slock, flags);
- return ret;
+ return 0;
}
cval = inb(info->base + UART_LCR);
@@ -2739,7 +2750,7 @@
outb(cval, info->base + UART_LCR); /* reset DLAB */
- return ret;
+ return 0;
}
/*
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.24-rc2-mm1/drivers/char/mxser_new.c linux-2.6.24-rc2-mm1/drivers/char/mxser_new.c
--- linux.vanilla-2.6.24-rc2-mm1/drivers/char/mxser_new.c 2007-11-16 17:55:11.000000000 +0000
+++ linux-2.6.24-rc2-mm1/drivers/char/mxser_new.c 2007-11-16 18:19:21.000000000 +0000
@@ -452,18 +452,17 @@
static int mxser_set_baud(struct mxser_port *info, long newspd)
{
unsigned int i;
- int quot = 0;
+ int quot = 0, baud;
unsigned char cval;
- int ret = 0;
if (!info->tty || !info->tty->termios)
- return ret;
+ return -1;
if (!(info->ioaddr))
- return ret;
+ return -1;
if (newspd > info->max_baud)
- return 0;
+ return -1;
info->realbaud = newspd;
for (i = 0; i < BAUD_TABLE_NO; i++)
@@ -476,10 +475,13 @@
} else {
if (newspd == 134) {
quot = (2 * info->baud_base / 269);
+ tty_encode_baud_rate(info->tty, 134, 134);
} else if (newspd) {
quot = info->baud_base / newspd;
if (quot == 0)
quot = 1;
+ baud = info->baud_base/quot;
+ tty_encode_baud_rate(info->tty, baud, baud);
} else {
quot = 0;
}
@@ -494,7 +496,7 @@
} else {
info->MCR &= ~UART_MCR_DTR;
outb(info->MCR, info->ioaddr + UART_MCR);
- return ret;
+ return 0;
}
cval = inb(info->ioaddr + UART_LCR);
@@ -518,7 +520,7 @@
} else
SET_MOXA_MUST_ENUM_VALUE(info->ioaddr, 0);
- return ret;
+ return 0;
}
/*
-
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