diff options
author | Samuel Iglesias Gonsalvez <siglesias@igalia.com> | 2012-12-10 05:50:08 -0500 |
---|---|---|
committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2013-01-15 21:24:39 -0500 |
commit | e0f8d323f34dee3f47388dc3d87e7c428b077a0d (patch) | |
tree | ad0c03cfb1a579fa893adf48843cbf88dee5d26c | |
parent | b0d17fbdacb32f9f4b9ee1ad2b8f42f6a480d842 (diff) |
ipack/devices/ipoctal: added shutdown callback
Added shutdown callback to disable RX and TX when there is no other client
accesing the device.
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r-- | drivers/ipack/devices/ipoctal.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/ipack/devices/ipoctal.c b/drivers/ipack/devices/ipoctal.c index 8666d2d05eef..0b3c4b8fe830 100644 --- a/drivers/ipack/devices/ipoctal.c +++ b/drivers/ipack/devices/ipoctal.c | |||
@@ -625,6 +625,22 @@ static void ipoctal_hangup(struct tty_struct *tty) | |||
625 | wake_up_interruptible(&channel->tty_port.open_wait); | 625 | wake_up_interruptible(&channel->tty_port.open_wait); |
626 | } | 626 | } |
627 | 627 | ||
628 | static void ipoctal_shutdown(struct tty_struct *tty) | ||
629 | { | ||
630 | struct ipoctal_channel *channel = tty->driver_data; | ||
631 | |||
632 | if (channel == NULL) | ||
633 | return; | ||
634 | |||
635 | iowrite8(CR_DISABLE_RX | CR_DISABLE_TX, &channel->regs->w.cr); | ||
636 | channel->rx_enable = 0; | ||
637 | iowrite8(CR_CMD_RESET_RX, &channel->regs->w.cr); | ||
638 | iowrite8(CR_CMD_RESET_TX, &channel->regs->w.cr); | ||
639 | iowrite8(CR_CMD_RESET_ERR_STATUS, &channel->regs->w.cr); | ||
640 | iowrite8(CR_CMD_RESET_MR, &channel->regs->w.cr); | ||
641 | clear_bit(ASYNCB_INITIALIZED, &channel->tty_port.flags); | ||
642 | } | ||
643 | |||
628 | static const struct tty_operations ipoctal_fops = { | 644 | static const struct tty_operations ipoctal_fops = { |
629 | .ioctl = NULL, | 645 | .ioctl = NULL, |
630 | .open = ipoctal_open, | 646 | .open = ipoctal_open, |
@@ -635,6 +651,7 @@ static const struct tty_operations ipoctal_fops = { | |||
635 | .chars_in_buffer = ipoctal_chars_in_buffer, | 651 | .chars_in_buffer = ipoctal_chars_in_buffer, |
636 | .get_icount = ipoctal_get_icount, | 652 | .get_icount = ipoctal_get_icount, |
637 | .hangup = ipoctal_hangup, | 653 | .hangup = ipoctal_hangup, |
654 | .shutdown = ipoctal_shutdown, | ||
638 | }; | 655 | }; |
639 | 656 | ||
640 | static int ipoctal_probe(struct ipack_device *dev) | 657 | static int ipoctal_probe(struct ipack_device *dev) |