1#ifndef _TWSI_H 2#define _TWSI_H 3/* 4 * 5 * This file is provided under a dual BSD/GPLv2 license. When using or 6 * redistributing this file, you may do so under either license. 7 * 8 * GPL LICENSE SUMMARY 9 * 10 * Copyright(c) 2015 Intel Corporation. 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of version 2 of the GNU General Public License as 14 * published by the Free Software Foundation. 15 * 16 * This program is distributed in the hope that it will be useful, but 17 * WITHOUT ANY WARRANTY; without even the implied warranty of 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 19 * General Public License for more details. 20 * 21 * BSD LICENSE 22 * 23 * Copyright(c) 2015 Intel Corporation. 24 * 25 * Redistribution and use in source and binary forms, with or without 26 * modification, are permitted provided that the following conditions 27 * are met: 28 * 29 * - Redistributions of source code must retain the above copyright 30 * notice, this list of conditions and the following disclaimer. 31 * - Redistributions in binary form must reproduce the above copyright 32 * notice, this list of conditions and the following disclaimer in 33 * the documentation and/or other materials provided with the 34 * distribution. 35 * - Neither the name of Intel Corporation nor the names of its 36 * contributors may be used to endorse or promote products derived 37 * from this software without specific prior written permission. 38 * 39 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 40 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 41 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 42 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 43 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 45 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 46 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 47 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 48 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 49 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 50 * 51 */ 52 53#define HFI1_TWSI_NO_DEV 0xFF 54 55struct hfi1_devdata; 56 57/* Bit position of SDA pin in ASIC_QSFP* registers */ 58#define GPIO_SDA_NUM 1 59 60/* these functions must be called with qsfp_lock held */ 61int hfi1_twsi_reset(struct hfi1_devdata *dd, u32 target); 62int hfi1_twsi_blk_rd(struct hfi1_devdata *dd, u32 target, int dev, int addr, 63 void *buffer, int len); 64int hfi1_twsi_blk_wr(struct hfi1_devdata *dd, u32 target, int dev, int addr, 65 const void *buffer, int len); 66 67 68#endif /* _TWSI_H */ 69