xpp.r6616: More sysfs migration, FXO enhancements, BRI fixes

  * Fix cases where the command_queue overflowed during initialization.
  * More migrations to sysfs:
    - Add a 'transport' attribute to our astribank devices which
      points to the usb device we use. E.g:
       /sys/bus/astribanks/devices/xbus-00/transport is symlinked to
       ../../../../../../devices/pci0000:00/0000:00:10.4/usb5/5-4
    - Move /proc/xpp/XBUS-??/XPD-??/span to
      /sys/bus/xpds/devices/??:?:?/span
    - Migrate from /proc/xpp/sync to:
      /sys/bus/astribanks/drivers/xppdrv/sync
  * PRI: change the "timing" priority to match the convention used by
         other PRI cards -- I.e: lower numbers (not 0) have higher
        priority.
  * FXO:
    - Power denial: create two module parameters instead of hard-coded
      constants (power_denial_safezone, power_denial_minlen).
      For sites that get non-standard power-denial signals from central
      office on offhook.
    - Don't hangup on power-denial, just notify Dahdi and wait for
    - Fix caller-id detection for the case central office sends it before
      first ring without any indication before.
      Asterisk's desicion.


git-svn-id: http://svn.asterisk.org/svn/dahdi/linux/trunk@5663 a0bf4364-ded3-4de4-8d8a-66a801d63aff

1 files changed, 3 insertions, 1 deletions

diff --git a/drivers/dahdi/xpp/card_global.c b/drivers/dahdi/xpp/card_global.c
index a8264e4..7f7397b 100644
--- a/drivers/dahdi/xpp/card_global.c
+++ b/drivers/dahdi/xpp/card_global.c
@@ -374,7 +374,9 @@ static int proc_xpd_register_write(struct file *file, const char __user *buffer,
 			XPD_NOTICE(xpd, "Failed writing command: '%s'\n", buf);
 			return ret;
 		}
-		msleep(1);	/* don't overflow command queue */
+		/* Don't flood command_queue */
+		if(xframe_queue_count(&xpd->xbus->command_queue) > 5)
+			msleep(6);
 	}
 	return count;
 }