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/*
* Copyright (c) 2017 Mellanox Technologies. All rights reserved.
* Copyright (c) 2017 Vadim Pasternak <vadimp@mellanox.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the names of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* Alternatively, this software may be distributed under the terms of the
* GNU General Public License ("GPL") version 2 as published by the Free
* Software Foundation.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __LINUX_PLATFORM_DATA_MLXREG_H
#define __LINUX_PLATFORM_DATA_MLXREG_H
#define MLXREG_CORE_LABEL_MAX_SIZE 32
#define MLXREG_CORE_WD_FEATURE_NOWAYOUT BIT(0)
#define MLXREG_CORE_WD_FEATURE_START_AT_BOOT BIT(1)
/**
* enum mlxreg_wdt_type - type of HW watchdog
*
* TYPE1 HW watchdog implementation exist in old systems.
* All new systems have TYPE2 HW watchdog.
* TYPE3 HW watchdog can exist on all systems with new CPLD.
* TYPE3 is selected by WD capability bit.
*/
enum mlxreg_wdt_type {
MLX_WDT_TYPE1,
MLX_WDT_TYPE2,
MLX_WDT_TYPE3,
};
/**
* struct mlxreg_hotplug_device - I2C device data:
*
* @adapter: I2C device adapter;
* @client: I2C device client;
* @brdinfo: device board information;
* @nr: I2C device adapter number, to which device is to be attached;
*
* Structure represents I2C hotplug device static data (board topology) and
* dynamic data (related kernel objects handles).
*/
struct mlxreg_hotplug_device {
struct i2c_adapter *adapter;
struct i2c_client *client;
struct i2c_board_info *brdinfo;
int nr;
};
/**
* struct mlxreg_core_data - attributes control data:
*
* @label: attribute label;
* @reg: attribute register;
* @mask: attribute access mask;
* @bit: attribute effective bit;
* @capability: attribute capability register;
* @reg_prsnt: attribute presence register;
* @mode: access mode;
* @np - pointer to node platform associated with attribute;
* @hpdev - hotplug device data;
* @health_cntr: dynamic device health indication counter;
* @attached: true if device has been attached after good health indication;
* @regnum: number of registers occupied by multi-register attribute;
*/
struct mlxreg_core_data {
char label[MLXREG_CORE_LABEL_MAX_SIZE];
u32 reg;
u32 mask;
u32 bit;
u32 capability;
u32 reg_prsnt;
umode_t mode;
struct device_node *np;
struct mlxreg_hotplug_device hpdev;
u32 health_cntr;
bool attached;
u8 regnum;
};
/**
* struct mlxreg_core_item - same type components controlled by the driver:
*
* @data: component data;
* @aggr_mask: group aggregation mask;
* @reg: group interrupt status register;
* @mask: group interrupt mask;
* @capability: group capability register;
* @cache: last status value for elements fro the same group;
* @count: number of available elements in the group;
* @ind: element's index inside the group;
* @inversed: if 0: 0 for signal status is OK, if 1 - 1 is OK;
* @health: true if device has health indication, false in other case;
*/
struct mlxreg_core_item {
struct mlxreg_core_data *data;
u32 aggr_mask;
u32 reg;
u32 mask;
u32 capability;
u32 cache;
u8 count;
u8 ind;
u8 inversed;
u8 health;
};
/**
* struct mlxreg_core_platform_data - platform data:
*
* @data: instance private data;
* @regmap: register map of parent device;
* @counter: number of instances;
* @features: supported features of device;
* @version: implementation version;
* @identity: device identity name;
*/
struct mlxreg_core_platform_data {
struct mlxreg_core_data *data;
void *regmap;
int counter;
u32 features;
u32 version;
char identity[MLXREG_CORE_LABEL_MAX_SIZE];
};
/**
* struct mlxreg_core_hotplug_platform_data - hotplug platform data:
*
* @items: same type components with the hotplug capability;
* @irq: platform interrupt number;
* @regmap: register map of parent device;
* @counter: number of the components with the hotplug capability;
* @cell: location of top aggregation interrupt register;
* @mask: top aggregation interrupt common mask;
* @cell_low: location of low aggregation interrupt register;
* @mask_low: low aggregation interrupt common mask;
* @deferred_nr: I2C adapter number must be exist prior probing execution;
* @shift_nr: I2C adapter numbers must be incremented by this value;
*/
struct mlxreg_core_hotplug_platform_data {
struct mlxreg_core_item *items;
int irq;
void *regmap;
int counter;
u32 cell;
u32 mask;
u32 cell_low;
u32 mask_low;
int deferred_nr;
int shift_nr;
};
#endif /* __LINUX_PLATFORM_DATA_MLXREG_H */
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