include/linux/platform_data/mlxcpld-hotplug.h

   1 /*
   2  * include/linux/platform_data/mlxcpld-hotplug.h
   3  * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
   4  * Copyright (c) 2016 Vadim Pasternak <vadimp@mellanox.com>
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. Neither the names of the copyright holders nor the names of its
  15  *    contributors may be used to endorse or promote products derived from
  16  *    this software without specific prior written permission.
  17  *
  18  * Alternatively, this software may be distributed under the terms of the
  19  * GNU General Public License ("GPL") version 2 as published by the Free
  20  * Software Foundation.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  23  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #ifndef __LINUX_PLATFORM_DATA_MLXCPLD_HOTPLUG_H
  36 #define __LINUX_PLATFORM_DATA_MLXCPLD_HOTPLUG_H
  37
  38 /**
  39  * struct mlxcpld_hotplug_device - I2C device data:
  40  * @adapter: I2C device adapter;
  41  * @client: I2C device client;
  42  * @brdinfo: device board information;
  43  * @bus: I2C bus, where device is attached;
  44  *
  45  * Structure represents I2C hotplug device static data (board topology) and
  46  * dynamic data (related kernel objects handles).
  47  */
  48 struct mlxcpld_hotplug_device {
  49         struct i2c_adapter *adapter;
  50         struct i2c_client *client;
  51         struct i2c_board_info brdinfo;
  52         u16 bus;
  53 };
  54
  55 /**
  56  * struct mlxcpld_hotplug_platform_data - device platform data:
  57  * @top_aggr_offset: offset of top aggregation interrupt register;
  58  * @top_aggr_mask: top aggregation interrupt common mask;
  59  * @top_aggr_psu_mask: top aggregation interrupt PSU mask;
  60  * @psu_reg_offset: offset of PSU interrupt register;
  61  * @psu_mask: PSU interrupt mask;
  62  * @psu_count: number of equipped replaceable PSUs;
  63  * @psu: pointer to PSU devices data array;
  64  * @top_aggr_pwr_mask: top aggregation interrupt power mask;
  65  * @pwr_reg_offset: offset of power interrupt register
  66  * @pwr_mask: power interrupt mask;
  67  * @pwr_count: number of power sources;
  68  * @pwr: pointer to power devices data array;
  69  * @top_aggr_fan_mask: top aggregation interrupt FAN mask;
  70  * @fan_reg_offset: offset of FAN interrupt register;
  71  * @fan_mask: FAN interrupt mask;
  72  * @fan_count: number of equipped replaceable FANs;
  73  * @fan: pointer to FAN devices data array;
  74  *
  75  * Structure represents board platform data, related to system hotplug events,
  76  * like FAN, PSU, power cable insertion and removing. This data provides the
  77  * number of hot-pluggable devices and hardware description for event handling.
  78  */
  79 struct mlxcpld_hotplug_platform_data {
  80         u16 top_aggr_offset;
  81         u8 top_aggr_mask;
  82         u8 top_aggr_psu_mask;
  83         u16 psu_reg_offset;
  84         u8 psu_mask;
  85         u8 psu_count;
  86         struct mlxcpld_hotplug_device *psu;
  87         u8 top_aggr_pwr_mask;
  88         u16 pwr_reg_offset;
  89         u8 pwr_mask;
  90         u8 pwr_count;
  91         struct mlxcpld_hotplug_device *pwr;
  92         u8 top_aggr_fan_mask;
  93         u16 fan_reg_offset;
  94         u8 fan_mask;
  95         u8 fan_count;
  96         struct mlxcpld_hotplug_device *fan;
  97 };
  98
  99 #endif /* __LINUX_PLATFORM_DATA_MLXCPLD_HOTPLUG_H */