From 016af9b5c51e58ecda573f14dabe85a67363b20f Mon Sep 17 00:00:00 2001 From: Joel Fernandes Date: Sun, 18 Aug 2013 00:56:11 -0500 Subject: [PATCH] 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: Joe Perches Signed-off-by: Joel Fernandes Signed-off-by: Herbert Xu --- drivers/crypto/omap-aes.c | 24 +++++++++++++++++++++++- 1 file changed, 23 insertions(+), 1 deletion(-) diff --git a/drivers/crypto/omap-aes.c b/drivers/crypto/omap-aes.c index 5f7980586850..e5b2120a12b9 100644 --- a/drivers/crypto/omap-aes.c +++ b/drivers/crypto/omap-aes.c @@ -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 #include @@ -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) -- 2.39.2