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authorLinus Torvalds <torvalds@linux-foundation.org>2010-11-01 07:53:19 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-11-01 07:53:19 -0400
commitb3b2b6351a3f3342e6669b5c2defc85f6af75ee3 (patch)
tree9b47ae7b0111ab024d719214d2745b128db48beb
parent90ae83f7fc32733e5829d806306c0c590f1a383f (diff)
parent395bc5121828e570bd4bb6455c82b80e2f2b05b4 (diff)
Merge branch 'for-linus' of git://www.jni.nu/cris
* 'for-linus' of git://www.jni.nu/cris: CRIS: Add paths for CRISv10 serial driver CRIS: Fix RS485 delay handling. Add missing "struct" to in sizeof.
-rw-r--r--MAINTAINERS1
-rw-r--r--drivers/serial/crisv10.c23
2 files changed, 16 insertions, 8 deletions
diff --git a/MAINTAINERS b/MAINTAINERS
index cb8b58020352..0094224ca79b 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1757,6 +1757,7 @@ L: linux-cris-kernel@axis.com
W: http://developer.axis.com
S: Maintained
F: arch/cris/
+F: drivers/serial/crisv10.*
CRYPTO API
M: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/serial/crisv10.c b/drivers/serial/crisv10.c
index c856905bb3bd..fa62578fcd20 100644
--- a/drivers/serial/crisv10.c
+++ b/drivers/serial/crisv10.c
@@ -1411,11 +1411,12 @@ e100_enable_rs485(struct tty_struct *tty, struct serial_rs485 *r)
CONFIG_ETRAX_RS485_LTC1387_RXEN_PORT_G_BIT, 1);
#endif
- info->rs485.flags = r->flags;
- if (r->delay_rts_before_send >= 1000)
+ info->rs485 = *r;
+
+ /* Maximum delay before RTS equal to 1000 */
+ if (info->rs485.delay_rts_before_send >= 1000)
info->rs485.delay_rts_before_send = 1000;
- else
- info->rs485.delay_rts_before_send = r->delay_rts_before_send;
+
/* printk("rts: on send = %i, after = %i, enabled = %i",
info->rs485.rts_on_send,
info->rs485.rts_after_sent,
@@ -3234,9 +3235,9 @@ rs_write(struct tty_struct *tty,
e100_disable_rx(info);
e100_enable_rx_irq(info);
#endif
-
- if (info->rs485.delay_rts_before_send > 0)
- msleep(info->rs485.delay_rts_before_send);
+ if ((info->rs485.flags & SER_RS485_RTS_BEFORE_SEND) &&
+ (info->rs485.delay_rts_before_send > 0))
+ msleep(info->rs485.delay_rts_before_send);
}
#endif /* CONFIG_ETRAX_RS485 */
@@ -3694,6 +3695,11 @@ rs_ioctl(struct tty_struct *tty, struct file * file,
rs485data.delay_rts_before_send = rs485ctrl.delay_rts_before_send;
rs485data.flags = 0;
+ if (rs485data.delay_rts_before_send != 0)
+ rs485data.flags |= SER_RS485_RTS_BEFORE_SEND;
+ else
+ rs485data.flags &= ~(SER_RS485_RTS_BEFORE_SEND);
+
if (rs485ctrl.enabled)
rs485data.flags |= SER_RS485_ENABLED;
else
@@ -3731,7 +3737,7 @@ rs_ioctl(struct tty_struct *tty, struct file * file,
/* This is the ioctl to get RS485 data from user-space */
if (copy_to_user((struct serial_rs485 *) arg,
rs485data,
- sizeof(serial_rs485)))
+ sizeof(struct serial_rs485)))
return -EFAULT;
break;
}
@@ -4527,6 +4533,7 @@ static int __init rs_init(void)
/* Set sane defaults */
info->rs485.flags &= ~(SER_RS485_RTS_ON_SEND);
info->rs485.flags |= SER_RS485_RTS_AFTER_SEND;
+ info->rs485.flags &= ~(SER_RS485_RTS_BEFORE_SEND);
info->rs485.delay_rts_before_send = 0;
info->rs485.flags &= ~(SER_RS485_ENABLED);
#endif