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authorBen Cahill <ben.m.cahill@intel.com>2009-11-20 12:04:52 -0800
committerJohn W. Linville <linville@tuxdriver.com>2009-11-23 17:05:30 -0500
commit4e03185fb8e85d5624d3a68feced70cc9c9e2136 (patch)
treeb0dba38c77f74b7ea43b468e9a28c10044df6e84
parent3305443c968b98902199bea0abbd9443c6a2bb8d (diff)
iwlwifi: Add iwl_write8()
To support byte writes to CSR_INT_COALESCING and CSR_INT_PERIODIC registers, add iwl_write8(), including debug/trace support. Signed-off-by: Ben Cahill <ben.m.cahill@intel.com> Signed-off-by: Reinette Chatre <reinette.chatre@intel.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-devtrace.c1
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-devtrace.h16
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-io.h20
3 files changed, 37 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-devtrace.c b/drivers/net/wireless/iwlwifi/iwl-devtrace.c
index 4ef5acaa556d..e7d88d1da15d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-devtrace.c
+++ b/drivers/net/wireless/iwlwifi/iwl-devtrace.c
@@ -5,6 +5,7 @@
#define CREATE_TRACE_POINTS
#include "iwl-devtrace.h"
+EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_iowrite8);
EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_ioread32);
EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_iowrite32);
EXPORT_TRACEPOINT_SYMBOL(iwlwifi_dev_rx);
diff --git a/drivers/net/wireless/iwlwifi/iwl-devtrace.h b/drivers/net/wireless/iwlwifi/iwl-devtrace.h
index 8c7159208da1..f2d4b01ba466 100644
--- a/drivers/net/wireless/iwlwifi/iwl-devtrace.h
+++ b/drivers/net/wireless/iwlwifi/iwl-devtrace.h
@@ -32,6 +32,22 @@ TRACE_EVENT(iwlwifi_dev_ioread32,
TP_printk("[%p] read io[%#x] = %#x", __entry->priv, __entry->offs, __entry->val)
);
+TRACE_EVENT(iwlwifi_dev_iowrite8,
+ TP_PROTO(struct iwl_priv *priv, u32 offs, u8 val),
+ TP_ARGS(priv, offs, val),
+ TP_STRUCT__entry(
+ PRIV_ENTRY
+ __field(u32, offs)
+ __field(u8, val)
+ ),
+ TP_fast_assign(
+ PRIV_ASSIGN;
+ __entry->offs = offs;
+ __entry->val = val;
+ ),
+ TP_printk("[%p] write io[%#x] = %#x)", __entry->priv, __entry->offs, __entry->val)
+);
+
TRACE_EVENT(iwlwifi_dev_iowrite32,
TP_PROTO(struct iwl_priv *priv, u32 offs, u32 val),
TP_ARGS(priv, offs, val),
diff --git a/drivers/net/wireless/iwlwifi/iwl-io.h b/drivers/net/wireless/iwlwifi/iwl-io.h
index d0a358c9d96b..e552d4c4bdbe 100644
--- a/drivers/net/wireless/iwlwifi/iwl-io.h
+++ b/drivers/net/wireless/iwlwifi/iwl-io.h
@@ -62,6 +62,26 @@
*
*/
+static inline void _iwl_write8(struct iwl_priv *priv, u32 ofs, u8 val)
+{
+ trace_iwlwifi_dev_iowrite8(priv, ofs, val);
+ iowrite8(val, priv->hw_base + ofs);
+}
+
+#ifdef CONFIG_IWLWIFI_DEBUG
+static inline void __iwl_write8(const char *f, u32 l, struct iwl_priv *priv,
+ u32 ofs, u8 val)
+{
+ IWL_DEBUG_IO(priv, "write8(0x%08X, 0x%02X) - %s %d\n", ofs, val, f, l);
+ _iwl_write8(priv, ofs, val);
+}
+#define iwl_write8(priv, ofs, val) \
+ __iwl_write8(__FILE__, __LINE__, priv, ofs, val)
+#else
+#define iwl_write8(priv, ofs, val) _iwl_write8(priv, ofs, val)
+#endif
+
+
static inline void _iwl_write32(struct iwl_priv *priv, u32 ofs, u32 val)
{
trace_iwlwifi_dev_iowrite32(priv, ofs, val);