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Commit 016af9b5 authored by Joel Fernandes's avatar Joel Fernandes Committed by Herbert Xu
Browse files

crypto: omap-aes - Add useful debug macros 



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.

Using statement expression macros in read path as,
Suggested-by: default avatarJoe Perches <joe@perches.com>

Signed-off-by: default avatarJoel Fernandes <joelf@ti.com>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 257aff51

drivers/crypto/omap-aes.c

+23 −1
Original line number Diff line number Diff line
@@ -13,7 +13,9 @@ 
 *

 */



#define pr_fmt(fmt) "%s: " fmt, __func__

#define pr_fmt(fmt) "%20s: " fmt, __func__

#define prn(num) pr_debug(#num "=%d\n", num)

#define prx(num) pr_debug(#num "=%x\n", num)



#include <linux/err.h>

#include <linux/module.h>
@@ -172,16 +174,36 @@ struct omap_aes_dev { 
static LIST_HEAD(dev_list);

static DEFINE_SPINLOCK(list_lock);



#ifdef DEBUG

#define omap_aes_read(dd, offset)				\

({								\

	int _read_ret;						\

	_read_ret = __raw_readl(dd->io_base + offset);		\

	pr_debug("omap_aes_read(" #offset "=%#x)= %#x\n",	\

		 offset, _read_ret);				\

	_read_ret;						\

})

#else

static inline u32 omap_aes_read(struct omap_aes_dev *dd, u32 offset)

{

	return __raw_readl(dd->io_base + offset);

}

#endif



#ifdef DEBUG

#define omap_aes_write(dd, offset, value)				\

	do {								\

		pr_debug("omap_aes_write(" #offset "=%#x) value=%#x\n",	\

			 offset, value);				\

		__raw_writel(value, dd->io_base + offset);		\

	} while (0)

#else

static inline void omap_aes_write(struct omap_aes_dev *dd, u32 offset,

				  u32 value)

{

	__raw_writel(value, dd->io_base + offset);

}

#endif



static inline void omap_aes_write_mask(struct omap_aes_dev *dd, u32 offset,

					u32 value, u32 mask)