projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 81dee67e SM |
1 | #ifndef LYNX_HELP_H__ |
| 2 | #define LYNX_HELP_H__ | |
| 3 | /*****************************************************************************\ | |
| 4 | * FIELD MACROS * | |
| 5 | \*****************************************************************************/ | |
| 6 | ||
| 7 | #define _LSB(f) (0 ? f) | |
| 8 | #define _MSB(f) (1 ? f) | |
| 9 | #define _COUNT(f) (_MSB(f) - _LSB(f) + 1) | |
| 10 | ||
| 11 | #define RAW_MASK(f) (0xFFFFFFFF >> (32 - _COUNT(f))) | |
| 12 | #define GET_MASK(f) (RAW_MASK(f) << _LSB(f)) | |
| 13 | #define GET_FIELD(d,f) (((d) >> _LSB(f)) & RAW_MASK(f)) | |
| 14 | #define TEST_FIELD(d,f,v) (GET_FIELD(d,f) == f ## _ ## v) | |
| 15 | #define SET_FIELD(d,f,v) (((d) & ~GET_MASK(f)) | \ | |
| 16 | (((f ## _ ## v) & RAW_MASK(f)) << _LSB(f))) | |
| 17 | #define SET_FIELDV(d,f,v) (((d) & ~GET_MASK(f)) | \ | |
| 18 | (((v) & RAW_MASK(f)) << _LSB(f))) | |
| 19 | ||
| 20 | ||
| 21 | //////////////////////////////////////////////////////////////////////////////// | |
| 22 | // // | |
| 23 | // Internal macros // | |
| 24 | // // | |
| 25 | //////////////////////////////////////////////////////////////////////////////// | |
| 26 | ||
| 27 | #define _F_START(f) (0 ? f) | |
| 28 | #define _F_END(f) (1 ? f) | |
| 29 | #define _F_SIZE(f) (1 + _F_END(f) - _F_START(f)) | |
| 30 | #define _F_MASK(f) (((1 << _F_SIZE(f)) - 1) << _F_START(f)) | |
| 31 | #define _F_NORMALIZE(v, f) (((v) & _F_MASK(f)) >> _F_START(f)) | |
| 32 | #define _F_DENORMALIZE(v, f) (((v) << _F_START(f)) & _F_MASK(f)) | |
| 33 | ||
| 34 | ||
| 35 | //////////////////////////////////////////////////////////////////////////////// | |
| 36 | // // | |
| 37 | // Global macros // | |
| 38 | // // | |
| 39 | //////////////////////////////////////////////////////////////////////////////// | |
| 40 | ||
| 41 | #define FIELD_GET(x, reg, field) \ | |
| 42 | ( \ | |
| 43 | _F_NORMALIZE((x), reg ## _ ## field) \ | |
| 44 | ) | |
| 45 | ||
| 46 | #define FIELD_SET(x, reg, field, value) \ | |
| 47 | ( \ | |
| 48 | (x & ~_F_MASK(reg ## _ ## field)) \ | |
| 49 | | _F_DENORMALIZE(reg ## _ ## field ## _ ## value, reg ## _ ## field) \ | |
| 50 | ) | |
| 51 | ||
| 52 | #define FIELD_VALUE(x, reg, field, value) \ | |
| 53 | ( \ | |
| 54 | (x & ~_F_MASK(reg ## _ ## field)) \ | |
| 55 | | _F_DENORMALIZE(value, reg ## _ ## field) \ | |
| 56 | ) | |
| 57 | ||
| 58 | #define FIELD_CLEAR(reg, field) \ | |
| 59 | ( \ | |
| 60 | ~ _F_MASK(reg ## _ ## field) \ | |
| 61 | ) | |
| 62 | ||
| 63 | ||
| 64 | //////////////////////////////////////////////////////////////////////////////// | |
| 65 | // // | |
| 66 | // Field Macros // | |
| 67 | // // | |
| 68 | //////////////////////////////////////////////////////////////////////////////// | |
| 69 | ||
| 70 | #define FIELD_START(field) (0 ? field) | |
| 71 | #define FIELD_END(field) (1 ? field) | |
| 72 | #define FIELD_SIZE(field) (1 + FIELD_END(field) - FIELD_START(field)) | |
| 73 | #define FIELD_MASK(field) (((1 << (FIELD_SIZE(field)-1)) | ((1 << (FIELD_SIZE(field)-1)) - 1)) << FIELD_START(field)) | |
| 74 | #define FIELD_NORMALIZE(reg, field) (((reg) & FIELD_MASK(field)) >> FIELD_START(field)) | |
| 75 | #define FIELD_DENORMALIZE(field, value) (((value) << FIELD_START(field)) & FIELD_MASK(field)) | |
| 76 | ||
| 77 | #define FIELD_INIT(reg, field, value) FIELD_DENORMALIZE(reg ## _ ## field, \ | |
| 78 | reg ## _ ## field ## _ ## value) | |
| 79 | #define FIELD_INIT_VAL(reg, field, value) \ | |
| 80 | (FIELD_DENORMALIZE(reg ## _ ## field, value)) | |
| 81 | #define FIELD_VAL_SET(x, r, f, v) x = x & ~FIELD_MASK(r ## _ ## f) \ | |
| 82 | | FIELD_DENORMALIZE(r ## _ ## f, r ## _ ## f ## _ ## v) | |
| 83 | ||
| 84 | #define RGB(r, g, b) \ | |
| 85 | ( \ | |
| 86 | (unsigned long) (((r) << 16) | ((g) << 8) | (b)) \ | |
| 87 | ) | |
| 88 | ||
| 89 | #define RGB16(r, g, b) \ | |
| 90 | ( \ | |
| 91 | (unsigned short) ((((r) & 0xF8) << 8) | (((g) & 0xFC) << 3) | (((b) & 0xF8) >> 3)) \ | |
| 92 | ) | |
| 93 | ||
| 94 | static inline unsigned int absDiff(unsigned int a,unsigned int b) | |
| 95 | { | |
| 96 | if(a<b) | |
| 97 | return b-a; | |
| 98 | else | |
| 99 | return a-b; | |
| 100 | } | |
| 101 | ||
| 102 | /* n / d + 1 / 2 = (2n + d) / 2d */ | |
| 103 | #define roundedDiv(num,denom) ((2 * (num) + (denom)) / (2 * (denom))) | |
| 104 | #define MB(x) ((x)<<20) | |
| 105 | #define KB(x) ((x)<<10) | |
| 106 | #define MHz(x) ((x) * 1000000) | |
| 107 | ||
| 108 | ||
| 109 | ||
| 110 | ||
| 111 | #endif |