From 42bf1b9f13d9269d9a98de4bdc1a11365865ef42 Mon Sep 17 00:00:00 2001
From: Thomas Doerfler <Thomas.Doerfler@embedded-brains.de>
Date: Thu, 15 May 2008 15:10:38 +0000
Subject: adapted gen83xx to new board

---
 cpukit/libi2c/libi2c.c | 24 +++++++++++++++++-------
 cpukit/libi2c/libi2c.h | 13 ++++++++++++-
 2 files changed, 29 insertions(+), 8 deletions(-)

(limited to 'cpukit/libi2c')

diff --git a/cpukit/libi2c/libi2c.c b/cpukit/libi2c/libi2c.c
index 7adb793e3a..27c428064f 100644
--- a/cpukit/libi2c/libi2c.c
+++ b/cpukit/libi2c/libi2c.c
@@ -576,11 +576,9 @@ rtems_libi2c_ioctl (rtems_device_minor_number minor,
   va_list            ap;
   int sc = 0;
   void *args;
+  boolean is_started = FALSE;
   DECL_CHECKED_BH (busno, bush, minor, -)
-
-    if (not_started (busno))
-    return -RTEMS_NOT_OWNER_OF_RESOURCE;
-
+    
   va_start(ap, cmd);
   args = va_arg(ap, void *);
 
@@ -589,7 +587,17 @@ rtems_libi2c_ioctl (rtems_device_minor_number minor,
      * add ioctls defined for this level here:    
      */
     
+  case RTEMS_LIBI2C_IOCTL_GET_DRV_T:
+    /*
+     * query driver table entry
+     */
+    *(rtems_libi2c_drv_t **)args = (drvs[MINOR2DRV(minor)-1].drv);
+    break;
+
   case RTEMS_LIBI2C_IOCTL_START_TFM_READ_WRITE:
+    if (not_started (busno))
+      return -RTEMS_NOT_OWNER_OF_RESOURCE;
+
     /*
      * address device, then set transfer mode and perform read_write transfer
      */
@@ -598,6 +606,7 @@ rtems_libi2c_ioctl (rtems_device_minor_number minor,
      */
     if (sc == 0) {
       sc = rtems_libi2c_send_start (minor);
+      is_started = (sc == 0);
     }
     /*
      * set tfr mode
@@ -617,14 +626,15 @@ rtems_libi2c_ioctl (rtems_device_minor_number minor,
 	 RTEMS_LIBI2C_IOCTL_READ_WRITE, 
 	 &((rtems_libi2c_tfm_read_write_t *)args)->rd_wr);
     }
+    if ((sc < 0) && (is_started)) {
+      rtems_libi2c_send_stop (minor);
+    }
     break;
   default:
     sc = bush->ops->ioctl (bush, cmd, args);
     break;
   }
-  if (sc < 0)
-    rtems_libi2c_send_stop (minor);
-  return sc;
+    return sc;
 }
 
 static int
diff --git a/cpukit/libi2c/libi2c.h b/cpukit/libi2c/libi2c.h
index a3b98f8fd5..560fd53174 100644
--- a/cpukit/libi2c/libi2c.h
+++ b/cpukit/libi2c/libi2c.h
@@ -413,8 +413,19 @@ rtems_libi2c_ioctl (rtems_device_minor_number minor,
  * This call is only needed for SPI devices
  */
 
+#define RTEMS_LIBI2C_IOCTL_GET_DRV_T 4
 /*
- * arguemtn data structures for IOCTLs defined above
+ * retval = rtems_libi2c_ioctl(rtems_device_minor_number minor,
+ *                             RTEMS_LIBI2C_IOCTL_GET_DRV_T,
+ *                             const rtems_libi2c_drv_t *drv_t_ptr);
+ * 
+ * This call allows the a high-level driver to query its driver table entry,
+ * including its private data appended to it during creation of the entry
+ * 
+ */
+
+/*
+ * argument data structures for IOCTLs defined above
  */
 typedef struct {
   unsigned char       *rd_buf;
-- 
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