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Commit 4e03185f authored by Ben M Cahill's avatar Ben M Cahill Committed by John W. Linville
Browse files

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: default avatarBen Cahill <ben.m.cahill@intel.com>
Signed-off-by: default avatarReinette Chatre <reinette.chatre@intel.com>
Signed-off-by: default avatarJohn W. Linville <linville@tuxdriver.com>
parent 3305443c

drivers/net/wireless/iwlwifi/iwl-devtrace.c

+1 −0
Original line number Diff line number Diff line
@@ -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);

drivers/net/wireless/iwlwifi/iwl-devtrace.h

+16 −0
Original line number Diff line number Diff line
@@ -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),

drivers/net/wireless/iwlwifi/iwl-io.h

+20 −0
Original line number Diff line number Diff line
@@ -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);