projects / linux-2.6-block.git / blame
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1 | #ifndef _TWSI_H |
| 2 | #define _TWSI_H | |
| 3 | /* | |
| 05d6ac1d | 4 | * Copyright(c) 2015, 2016 Intel Corporation. |
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5 | * |
| 6 | * This file is provided under a dual BSD/GPLv2 license. When using or | |
| 7 | * redistributing this file, you may do so under either license. | |
| 8 | * | |
| 9 | * GPL LICENSE SUMMARY | |
| 10 | * | |
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11 | * This program is free software; you can redistribute it and/or modify |
| 12 | * it under the terms of version 2 of the GNU General Public License as | |
| 13 | * published by the Free Software Foundation. | |
| 14 | * | |
| 15 | * This program is distributed in the hope that it will be useful, but | |
| 16 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 18 | * General Public License for more details. | |
| 19 | * | |
| 20 | * BSD LICENSE | |
| 21 | * | |
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22 | * Redistribution and use in source and binary forms, with or without |
| 23 | * modification, are permitted provided that the following conditions | |
| 24 | * are met: | |
| 25 | * | |
| 26 | * - Redistributions of source code must retain the above copyright | |
| 27 | * notice, this list of conditions and the following disclaimer. | |
| 28 | * - Redistributions in binary form must reproduce the above copyright | |
| 29 | * notice, this list of conditions and the following disclaimer in | |
| 30 | * the documentation and/or other materials provided with the | |
| 31 | * distribution. | |
| 32 | * - Neither the name of Intel Corporation nor the names of its | |
| 33 | * contributors may be used to endorse or promote products derived | |
| 34 | * from this software without specific prior written permission. | |
| 35 | * | |
| 36 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 37 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 38 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 39 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 40 | * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 41 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 42 | * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 43 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 44 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 45 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 46 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 47 | * | |
| 48 | */ | |
| 49 | ||
| 50 | #define HFI1_TWSI_NO_DEV 0xFF | |
| 51 | ||
| 52 | struct hfi1_devdata; | |
| 53 | ||
| cfe3e656 | 54 | /* Bit position of SDA/SCL pins in ASIC_QSFP* registers */ |
| 77241056 | 55 | #define GPIO_SDA_NUM 1 |
| cfe3e656 | 56 | #define GPIO_SCL_NUM 0 |
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57 | |
| 58 | /* these functions must be called with qsfp_lock held */ | |
| 59 | int hfi1_twsi_reset(struct hfi1_devdata *dd, u32 target); | |
| 60 | int hfi1_twsi_blk_rd(struct hfi1_devdata *dd, u32 target, int dev, int addr, | |
| 61 | void *buffer, int len); | |
| 62 | int hfi1_twsi_blk_wr(struct hfi1_devdata *dd, u32 target, int dev, int addr, | |
| 63 | const void *buffer, int len); | |
| 64 | ||
| 77241056 | 65 | #endif /* _TWSI_H */ |