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>

1 files changed, 16 insertions, 0 deletions

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),