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changeset 1666:ac397049b1b7

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The I2C transfer routine waits now while the bus is busy instead of just return an error.
author asl
date Tue, 08 Jun 2004 17:52:31 +0000
parents 96994236ec07
children dc5f9783d45a
files packages/hal/arm/aim711/current/ChangeLog packages/hal/arm/aim711/current/src/aim711_misc.c
diffstat 2 files changed, 9 insertions(+), 5 deletions(-) [+]
line wrap: on
line diff
--- a/packages/hal/arm/aim711/current/ChangeLog
+++ b/packages/hal/arm/aim711/current/ChangeLog
@@ -1,3 +1,9 @@
+2004-06-07  Roland Cassebohm <roland.cassebohm@visionsystems.de>
+
+        * src/aim711_misc.c: 
+        The I2C transfer routine waits now while the bus is busy
+        instead of just return an error.
+
 2004-04-28  Roland Cassebohm <roland.cassebohm@visionsystems.de>
 
 	* include/plf_aux.h:
--- a/packages/hal/arm/aim711/current/src/aim711_misc.c
+++ b/packages/hal/arm/aim711/current/src/aim711_misc.c
@@ -396,12 +396,10 @@ hal_ks32c_i2c_transfer(cyg_uint32 nmsg, 
     }
 
     // is the bus free ?
-    HAL_READ_UINT32(KS32C_I2CCON, i2ccon);
-    if (i2ccon & KS32C_I2C_CON_BUSY)
+    do
     {
-        cyg_drv_mutex_unlock(&i2c_mutex);
-        RETURN(I2C_STATUS_BUSY);
-    }
+        HAL_READ_UINT32(KS32C_I2CCON, i2ccon);
+    } while (i2ccon & KS32C_I2C_CON_BUSY);
 
     // transfer the messages
     for (; nmsg > 0; --nmsg, ++pmsgs)