a3dd3f55f9
This change introduces PDDF which is described here: https://github.com/Azure/SONiC/pull/536 Most of the platform bring up effort goes in developing the platform device drivers, SONiC platform APIs and validating them. Typically each platform vendor writes their own drivers and platform APIs which is very tailor made to that platform. This involves writing code, building, installing it on the target platform devices and testing. Many of the details of the platform are hard coded into these drivers, from the HW spec. They go through this cycle repetitively till everything works fine, and is validated before upstreaming the code. PDDF aims to make this platform driver and platform APIs development process much simpler by providing a data driven development framework. This is enabled by: JSON descriptor files for platform data Generic data-driven drivers for various devices Generic SONiC platform APIs Vendor specific extensions for customisation and extensibility Signed-off-by: Fuzail Khan <fuzail.khan@broadcom.com>
77 lines
2.1 KiB
C
77 lines
2.1 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 CPLDMUX defines/structures header file
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*/
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#ifndef __PDDF_CPLDMUX_DEFS_H__
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#define __PDDF_CPLDMUX_DEFS_H__
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#include <linux/i2c-mux.h>
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#define MAX_CPLDMUX_CHAN 64
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typedef struct CPLDMUX_CHAN_DATA
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{
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int chan_num;
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char chan_device[128]; /* Could be multiple devices, mentioned as " " seperated array */
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int cpld_devaddr;
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int cpld_offset;
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int cpld_sel;
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int cpld_desel;
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}PDDF_CPLDMUX_CHAN_DATA;
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/* CPLDMUX DATA - DATA FOR CPLDMUX CLIENT*/
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typedef struct CPLDMUX_DATA
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{
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int base_chan;
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int num_chan;
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int chan_cache;
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uint32_t cpld_addr;
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char cpld_name[32];
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PDDF_CPLDMUX_CHAN_DATA chan_data[MAX_CPLDMUX_CHAN];
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}PDDF_CPLDMUX_DATA;
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typedef struct CPLDMUX_PDATA
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{
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int parent_bus;
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int base_chan;
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int num_chan;
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int chan_cache;
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struct i2c_client *cpld;
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PDDF_CPLDMUX_CHAN_DATA *chan_data;
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}PDDF_CPLDMUX_PDATA;
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typedef struct CPLDMUX_PRIV_DATA{
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struct i2c_adapter *parent;
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uint32_t last_chan; /* Will be used in case channel caching is enabled */
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PDDF_CPLDMUX_PDATA data;
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}PDDF_CPLDMUX_PRIV_DATA;
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typedef struct pldmux_ops_t
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{
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int (*select)(struct i2c_mux_core *muxc, uint32_t chan);
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int (*deselect)(struct i2c_mux_core *muxc, uint32_t chan);
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}PDDF_CPLDMUX_OPS;
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int pddf_cpldmux_select_default(struct i2c_mux_core *muxc, uint32_t chan);
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int pddf_cpldmux_deselect_default(struct i2c_mux_core *muxc, uint32_t chan);
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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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#endif
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