ath6kl: add tracing point for hif irqs

Add a tracing point for hif irq and dump the register content to user space. This is in hif.c as we could use the same code also with SPI but, as ath6kl doesn't SPI and most likely never will be, this is used just by SDIO so name the trace point as ath6kl_sdio_irq to make it easier to manage filters. Signed-off-by: Kalle Valo <[email protected]>
progmanos · Mar 18, 2013 · d57f093 · d57f093
1 parent e60c815
commit d57f093
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diff --git a/drivers/net/wireless/ath/ath6kl/hif.c b/drivers/net/wireless/ath/ath6kl/hif.c
@@ -22,6 +22,7 @@
 #include "target.h"
 #include "hif-ops.h"
 #include "debug.h"
+#include "trace.h"
 
 #define MAILBOX_FOR_BLOCK_SIZE          1
 
@@ -436,6 +437,8 @@ static int proc_pending_irqs(struct ath6kl_device *dev, bool *done)
 
 		ath6kl_dump_registers(dev, &dev->irq_proc_reg,
 				      &dev->irq_en_reg);
+		trace_ath6kl_sdio_irq(&dev->irq_en_reg,
+				      sizeof(dev->irq_en_reg));
 
 		/* Update only those registers that are enabled */
 		host_int_status = dev->irq_proc_reg.host_int_status &

diff --git a/drivers/net/wireless/ath/ath6kl/trace.h b/drivers/net/wireless/ath/ath6kl/trace.h
@@ -165,6 +165,26 @@ TRACE_EVENT(ath6kl_sdio_scat,
 	)
 );
 
+TRACE_EVENT(ath6kl_sdio_irq,
+	TP_PROTO(void *buf, size_t buf_len),
+
+	TP_ARGS(buf, buf_len),
+
+	TP_STRUCT__entry(
+		__field(size_t, buf_len)
+		__dynamic_array(u8, buf, buf_len)
+	),
+
+	TP_fast_assign(
+		__entry->buf_len = buf_len;
+		memcpy(__get_dynamic_array(buf), buf, buf_len);
+	),
+
+	TP_printk(
+		"irq len %d\n", __entry->buf_len
+	)
+);
+
 #endif /* _ ATH6KL_TRACE_H || TRACE_HEADER_MULTI_READ*/
 
 /* we don't want to use include/trace/events */