From 57876eb2129d928785e62f0c3452fa49e0db2ab8 Mon Sep 17 00:00:00 2001
From: Florian Pose <fp@igh-essen.com>
Date: Wed, 4 Jun 2008 08:30:18 +0000
Subject: [PATCH] Enable sync managers only if SII enable is set and size is
greater zero.
---
master/sync.c | 9 ++++++---
1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/master/sync.c b/master/sync.c
index de6cd37e..d1a60f81 100644
--- a/master/sync.c
+++ b/master/sync.c
@@ -105,17 +105,20 @@ void ec_sync_config(
uint8_t *data /**> Configuration memory. */
)
{
+ // enable only if SII enable is set and size is > 0.
+ uint16_t enable = sync->enable && data_size;
+
if (sync->slave->master->debug_level) {
- EC_DBG("SM%i: Addr 0x%04X, Size %3i, Ctrl 0x%02X, En %i\n",
+ EC_DBG("SM%u: Addr 0x%04X, Size %3u, Ctrl 0x%02X, En %u\n",
sync->index, sync->physical_start_address,
- data_size, sync->control_register, sync->enable);
+ data_size, sync->control_register, enable);
}
EC_WRITE_U16(data, sync->physical_start_address);
EC_WRITE_U16(data + 2, data_size);
EC_WRITE_U8 (data + 4, sync->control_register);
EC_WRITE_U8 (data + 5, 0x00); // status byte (read only)
- EC_WRITE_U16(data + 6, sync->enable ? 0x0001 : 0x0000); // enable
+ EC_WRITE_U16(data + 6, enable);
}
/*****************************************************************************/
--
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