When DEBUG is enabled, these macros can be used to print variables
in integer and hex format, and clearly display which registers,
offsets and values are being read/written , including printing the
names of the offsets and their values.
Signed-off-by: Joel Fernandes <joelf@xxxxxx>
---
drivers/crypto/omap-aes.c | 30 ++++++++++++++++++++++++++++++
1 file changed, 30 insertions(+)
diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c
index ee15b0f..3838e0a 100644
--- a/drivers/crypto/omap-aes.c
+++ b/drivers/crypto/omap-aes.c
@@ -15,6 +15,14 @@
#define pr_fmt(fmt) "%s: " fmt, __func__
+#ifdef DEBUG
+#define prn(num) printk(#num "=%d\n", num)
+#define prx(num) printk(#num "=%x\n", num)
+#else
+#define prn(num) do { } while (0)
+#define prx(num) do { } while (0)
+#endif
+
#include <linux/err.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -172,13 +180,35 @@ struct omap_aes_dev {
static LIST_HEAD(dev_list);
static DEFINE_SPINLOCK(list_lock);
+#ifdef DEBUG
+#define omap_aes_read(dd, offset) \
+ do { \
+ omap_aes_read_1(dd, offset); \
+ pr_debug("omap_aes_read(" #offset ")\n"); \
+ } while (0)
+
+static inline u32 omap_aes_read_1(struct omap_aes_dev *dd, u32 offset)
+#else
static inline u32 omap_aes_read(struct omap_aes_dev *dd, u32 offset)
+#endif
{
return __raw_readl(dd->io_base + offset);
}
+#ifdef DEBUG
+#define omap_aes_write(dd, offset, value) \
+ do { \
+ pr_debug("omap_aes_write(" #offset "=%x) value=%d\n", \
+ offset, value); \
+ omap_aes_write_1(dd, offset, value); \
+ } while (0)
+
+static inline void omap_aes_write_1(struct omap_aes_dev *dd, u32 offset,
+ u32 value)
+#else
static inline void omap_aes_write(struct omap_aes_dev *dd, u32 offset,
u32 value)
+#endif
{
__raw_writel(value, dd->io_base + offset);
}
--
1.7.9.5
--
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