78 lines
2.9 KiB
C
78 lines
2.9 KiB
C
/****************************************************************************
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* include/nuttx/power/mcp73871.h
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* Lower half driver for MCP73871 battery charger
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __DRIVERS_POWER_MCP73871_H
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#define __DRIVERS_POWER_MCP73871_H
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* This is the TABLE 5-1 STATUS OUTPUTS from MCP73871 datasheet
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* (20002090C.pdf)
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*/
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#define MCP73871_FAULT 0
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#define MCP73871_CHARGING 2
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#define MCP73871_BAT_LOW 3
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#define MCP73871_CHG_COMPLETE 4
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#define MCP73871_NO_BATTERY 6 /* Also could be Shutdown mode */
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#define MCP73871_NO_INPUT_PWR 7 /* Also could be Shutdown mode */
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/* MCP73871 configuration data structure */
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struct mcp73871_config_s
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{
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CODE int (*read_stat1)(void);
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CODE int (*read_stat2)(void);
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CODE int (*read_pg)(void);
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CODE void (*set_chg_ce)(bool on);
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};
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: mcp73871_initialize
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*
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* Description:
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* Initialize the BQ2425x battery driver and return an instance of the
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* lower_half interface that may be used with battery_charger_register();
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*
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* This driver requires:
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*
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* CONFIG_BATTERY_CHARGER - Upper half battery driver support
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*
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* Input Parameters:
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* config - The config structure with function pointers to read/write.
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*
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* Returned Value:
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* A pointer to the initialized lower-half driver instance. A NULL
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* pointer is returned on a failure to initialize the BQ2425x lower half.
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*
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****************************************************************************/
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FAR struct battery_charger_dev_s *
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mcp73871_initialize(FAR struct mcp73871_config_s *config);
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#endif /* __DRIVERS_POWER_MCP73871_H */
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