diff options
Diffstat (limited to 'drivers/staging/sm750fb/sm750_help.h')
-rw-r--r-- | drivers/staging/sm750fb/sm750_help.h | 56 |
1 files changed, 0 insertions, 56 deletions
diff --git a/drivers/staging/sm750fb/sm750_help.h b/drivers/staging/sm750fb/sm750_help.h deleted file mode 100644 index c070cf25a7d6..000000000000 --- a/drivers/staging/sm750fb/sm750_help.h +++ /dev/null @@ -1,56 +0,0 @@ -#ifndef LYNX_HELP_H__ -#define LYNX_HELP_H__ - -/* Internal macros */ -#define _F_START(f) (0 ? f) -#define _F_END(f) (1 ? f) -#define _F_SIZE(f) (1 + _F_END(f) - _F_START(f)) -#define _F_MASK(f) (((1 << _F_SIZE(f)) - 1) << _F_START(f)) -#define _F_NORMALIZE(v, f) (((v) & _F_MASK(f)) >> _F_START(f)) -#define _F_DENORMALIZE(v, f) (((v) << _F_START(f)) & _F_MASK(f)) - -/* Global macros */ -#define FIELD_GET(x, reg, field) \ -( \ - _F_NORMALIZE((x), reg ## _ ## field) \ -) - -#define FIELD_SET(x, reg, field, value) \ -( \ - (x & ~_F_MASK(reg ## _ ## field)) \ - | _F_DENORMALIZE(reg ## _ ## field ## _ ## value, reg ## _ ## field) \ -) - -#define FIELD_VALUE(x, reg, field, value) \ -( \ - (x & ~_F_MASK(reg ## _ ## field)) \ - | _F_DENORMALIZE(value, reg ## _ ## field) \ -) - -#define FIELD_CLEAR(reg, field) \ -( \ - ~_F_MASK(reg ## _ ## field) \ -) - -/* Field Macros */ -#define FIELD_START(field) (0 ? field) -#define FIELD_END(field) (1 ? field) -#define FIELD_SIZE(field) (1 + FIELD_END(field) - FIELD_START(field)) -#define FIELD_MASK(field) (((1 << (FIELD_SIZE(field)-1)) | ((1 << (FIELD_SIZE(field)-1)) - 1)) << FIELD_START(field)) - -static inline unsigned int absDiff(unsigned int a, unsigned int b) -{ - if (a < b) - return b-a; - else - return a-b; -} - -/* n / d + 1 / 2 = (2n + d) / 2d */ -#define roundedDiv(num, denom) ((2 * (num) + (denom)) / (2 * (denom))) -#define MHz(x) ((x) * 1000000) - - - - -#endif |