| Shad Ansari | 2f7f9be | 2017-06-07 13:34:53 -0700 | [diff] [blame] | 1 | /* |
| 2 | <:copyright-BRCM:2016:DUAL/GPL:standard |
| 3 | |
| 4 | Broadcom Proprietary and Confidential.(c) 2016 Broadcom |
| 5 | All Rights Reserved |
| 6 | |
| 7 | Unless you and Broadcom execute a separate written software license |
| 8 | agreement governing use of this software, this software is licensed |
| 9 | to you under the terms of the GNU General Public License version 2 |
| 10 | (the "GPL"), available at http://www.broadcom.com/licenses/GPLv2.php, |
| 11 | with the following added to such license: |
| 12 | |
| 13 | As a special exception, the copyright holders of this software give |
| 14 | you permission to link this software with independent modules, and |
| 15 | to copy and distribute the resulting executable under terms of your |
| 16 | choice, provided that you also meet, for each linked independent |
| 17 | module, the terms and conditions of the license of that module. |
| 18 | An independent module is a module which is not derived from this |
| 19 | software. The special exception does not apply to any modifications |
| 20 | of the software. |
| 21 | |
| 22 | Not withstanding the above, under no circumstances may you combine |
| 23 | this software in any way with any other Broadcom software provided |
| 24 | under a license other than the GPL, without Broadcom's express prior |
| 25 | written consent. |
| 26 | |
| 27 | :> |
| 28 | */ |
| 29 | |
| 30 | #ifndef BCMOS_PACK_H_ |
| 31 | #define BCMOS_PACK_H_ |
| 32 | |
| 33 | |
| 34 | /* |
| 35 | * Packing macros |
| 36 | * |
| 37 | * Usage: |
| 38 | * struct __PACKED_ATTR_START__ my_packed_struct |
| 39 | * { |
| 40 | * ... |
| 41 | * } __PACKED_ATTR_END__ ; |
| 42 | * |
| 43 | */ |
| 44 | |
| 45 | #ifdef __GNUC__ |
| 46 | |
| 47 | #define __PACKED_ATTR_START__ |
| 48 | #define __PACKED_ATTR_END__ __attribute__ ((packed)) |
| 49 | |
| 50 | #else |
| 51 | |
| 52 | #error define __PACKED_ATTR_START__, __PACKED_ATTR_END__ for this compiler |
| 53 | |
| 54 | #endif |
| 55 | |
| 56 | /* |
| 57 | * Macros for bit-field manipulation |
| 58 | * For each field F requires 2 constants |
| 59 | * - F_S - field shift |
| 60 | * - F_W - field width |
| 61 | */ |
| 62 | #define BCM_FIELD_GET(_w, _f) (((_w)>>_f ## _S) & ((1 << _f ## _W) - 1)) |
| 63 | #define BCM_FIELD(_f, _v) ((_v & ((1 << _f ## _W) - 1)) << _f ## _S) |
| 64 | #define BCM_FIELD_SET(_w, _f, _v) (_w) |= BCM_FIELD(_f, _v) |
| 65 | |
| 66 | |
| 67 | #endif /* BCMOS_PACK_H_ */ |