37eddd479d
The S3IP (Simplified Switch System INtegration Program) sysfs specification defines a unified interface to access peripheral hardware on devices from different vendors, making it easier for SONiC to support different devices and platforms. PDDF is a framework to simplify the driver and SONiC platform APIs development for new platforms. This effort is first step in combining the two frameworks. This specific PR adds S3IP supported sysfs attribute in common FAN driver of PDDF.
101 lines
3.4 KiB
C
101 lines
3.4 KiB
C
/*
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* Copyright 2019 Broadcom.
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* The term “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*
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* Description:
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* Platform FAN defines/structures header file
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*/
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#ifndef __PDDF_FAN_DEFS_H__
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#define __PDDF_FAN_DEFS_H__
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#define MAX_NUM_FAN 12
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#define MAX_FAN_ATTRS 128
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#define ATTR_NAME_LEN 32
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#define STR_ATTR_SIZE 32
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#define DEV_TYPE_LEN 32
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/* Each client has this additional data
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*/
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typedef struct FAN_DATA_ATTR
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{
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char aname[ATTR_NAME_LEN]; // attr name, taken from enum fan_sysfs_attributes
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char devtype[DEV_TYPE_LEN]; // Type of FAN controller, i.e EMC2305, EMC2302, or FAN-CPLD etc
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char devname[DEV_TYPE_LEN]; // Name of the device from where this informatin is to be read
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uint32_t devaddr;
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uint32_t offset;
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uint32_t mask;
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uint32_t cmpval;
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uint32_t len;
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int mult; // Multiplication factor to get the actual data
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uint8_t is_divisor; // Check if the value is a divisor and mult is dividend
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void *access_data;
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}FAN_DATA_ATTR;
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typedef struct FAN_SYSFS_ATTR_DATA
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{
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int index;
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unsigned short mode;
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ssize_t (*show)(struct device *dev, struct device_attribute *da, char *buf);
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int (*pre_get)(void *client, FAN_DATA_ATTR *adata, void *data);
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int (*do_get)(void *client, FAN_DATA_ATTR *adata, void *data);
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int (*post_get)(void *client, FAN_DATA_ATTR *adata, void *data);
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ssize_t (*store)(struct device *dev, struct device_attribute *da, const char *buf, size_t count);
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int (*pre_set)(void *client, FAN_DATA_ATTR *adata, void *data);
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int (*do_set)(void *client, FAN_DATA_ATTR *adata, void *data);
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int (*post_set)(void *client, FAN_DATA_ATTR *adata, void *data);
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void *data;
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} FAN_SYSFS_ATTR_DATA;
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typedef struct FAN_SYSFS_ATTR_DATA_ENTRY
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{
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char name[ATTR_NAME_LEN];
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FAN_SYSFS_ATTR_DATA *a_ptr;
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} FAN_SYSFS_ATTR_DATA_ENTRY;
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/* FAN CLIENT DATA - PLATFORM DATA FOR FAN CLIENT */
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typedef struct FAN_DATA
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{
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int num_fantrays; // num of fans controlled by this fan client
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FAN_DATA_ATTR fan_attr;
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int len; // no of valid attributes for this fan client
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FAN_DATA_ATTR fan_attrs[MAX_FAN_ATTRS];
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}FAN_DATA;
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typedef struct FAN_PDATA
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{
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int num_fantrays; // num of fans controlled by this fan client
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int len; // no of valid attributes for this fan client
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FAN_DATA_ATTR *fan_attrs;
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}FAN_PDATA;
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struct pddf_fan_ops_t
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{
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/*Fan duty cycle conversion ops*/
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uint32_t (*duty_cycle_to_reg_value)(uint32_t dc);
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uint32_t (*reg_value_to_duty_cycle)(uint32_t reg_val);
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};
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extern int board_i2c_cpld_read(unsigned short cpld_addr, u8 reg);
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extern int board_i2c_cpld_write(unsigned short cpld_addr, u8 reg, u8 value);
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extern int board_i2c_fpga_read(unsigned short cpld_addr, u8 reg);
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extern int board_i2c_fpga_write(unsigned short cpld_addr, u8 reg, u8 value);
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#endif
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