[PATCH xf86-input-wacom 2/3] Add a wcmClose helper function

[Hans de Goede]

This is a preparation patch for adding server managed fds support.

Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
 src/wcmConfig.c | 13 ++-----------
 src/xf86Wacom.c | 32 ++++++++++++++++++++++----------
 src/xf86Wacom.h |  3 +++
 3 files changed, 27 insertions(+), 21 deletions(-)

diff --git a/src/wcmConfig.c b/src/wcmConfig.c
index bb2c975..d19b9b4 100644
--- a/src/wcmConfig.c
+++ b/src/wcmConfig.c
@@ -601,11 +601,7 @@ static int wcmPreInit(InputDriverPtr drv, InputInfoPtr pInfo, int flags)
 		wcmHotplugOthers(pInfo, oldname);
 	}
 
-	if (pInfo->fd != -1)
-	{
-		close(pInfo->fd);
-		pInfo->fd = -1;
-	}
+	wcmClose(pInfo);
 
 	/* only link them once per port. We need to try for both tablet tool
 	 * and touch since we do not know which tool will be added first.
@@ -623,12 +619,7 @@ SetupProc_fail:
 	if (common && priv)
 		common->wcmDevices = priv->next;
 
-	if (pInfo->fd != -1)
-	{
-		close(pInfo->fd);
-		pInfo->fd = -1;
-	}
-
+	wcmClose(pInfo);
 	free(type);
 	free(oldname);
 	return BadMatch;
diff --git a/src/xf86Wacom.c b/src/xf86Wacom.c
index b0a60ff..3057d7a 100644
--- a/src/xf86Wacom.c
+++ b/src/xf86Wacom.c
@@ -55,6 +55,10 @@
 #define XIGetKnownProperty(prop) 0
 #endif
 
+#ifndef XI86_SERVER_FD
+#define XI86_SERVER_FD 0x20
+#endif
+
 static int wcmDevOpen(DeviceIntPtr pWcm);
 static int wcmReady(InputInfoPtr pInfo);
 static void wcmDevReadInput(InputInfoPtr pInfo);
@@ -544,6 +548,22 @@ Bool wcmOpen(InputInfoPtr pInfo)
 }
 
 /*****************************************************************************
+ * wcmClose --
+ ****************************************************************************/
+
+void wcmClose(InputInfoPtr pInfo)
+{
+	WacomDevicePtr priv = (WacomDevicePtr)pInfo->private;
+
+	DBG(1, priv, "closing device file\n");
+
+	if (pInfo->fd > -1 && !(pInfo->flags & XI86_SERVER_FD)) {
+		xf86CloseSerial(pInfo->fd);
+		pInfo->fd = -1;
+	}
+}
+
+/*****************************************************************************
  * wcmDevOpen --
  *    Open the physical device and init information structs.
  ****************************************************************************/
@@ -564,12 +584,7 @@ static int wcmDevOpen(DeviceIntPtr pWcm)
 		if ((wcmOpen (pInfo) != Success) || !common->device_path)
 		{
 			DBG(1, priv, "Failed to open device (fd=%d)\n", pInfo->fd);
-			if (pInfo->fd >= 0)
-			{
-				DBG(1, priv, "Closing device\n");
-				xf86CloseSerial(pInfo->fd);
-			}
-			pInfo->fd = -1;
+			wcmClose(pInfo);
 			return FALSE;
 		}
 
@@ -745,10 +760,7 @@ static void wcmDevClose(InputInfoPtr pInfo)
 	{
 		pInfo->fd = -1;
 		if (!--common->fd_refs)
-		{
-			DBG(1, common, "Closing device; uninitializing.\n");
-			xf86CloseSerial (common->fd);
-		}
+			wcmClose(pInfo);
 	}
 }
 
diff --git a/src/xf86Wacom.h b/src/xf86Wacom.h
index c0448f2..882d8cd 100644
--- a/src/xf86Wacom.h
+++ b/src/xf86Wacom.h
@@ -106,6 +106,9 @@ struct _WacomModule
 /* Open the device with the right serial parmeters */
 extern Bool wcmOpen(InputInfoPtr pInfo);
 
+/* Close the device */
+extern void wcmClose(InputInfoPtr pInfo);
+
 /* device autoprobing */
 char *wcmEventAutoDevProbe (InputInfoPtr pInfo);
 
-- 
1.9.0