293 lines
9.4 KiB
C
293 lines
9.4 KiB
C
/****************************************************************************
|
|
* include/nuttx/power/smps.h
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed with
|
|
* this work for additional information regarding copyright ownership. The
|
|
* ASF licenses this file to you under the Apache License, Version 2.0 (the
|
|
* "License"); you may not use this file except in compliance with the
|
|
* License. You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
|
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
|
* License for the specific language governing permissions and limitations
|
|
* under the License.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __INCLUDE_NUTTX_DRIVERS_POWER_SMPS_H
|
|
#define __INCLUDE_NUTTX_DRIVERS_POWER_SMPS_H
|
|
|
|
/* The SMPS (switched-mode power supply) driver is split into two parts:
|
|
*
|
|
* 1) An "upper half", generic driver that provides the common SMPS interface
|
|
* to application level code, and
|
|
* 2) A "lower half", platform-specific driver that implements the low-level
|
|
* functionality eg.:
|
|
* - timer controls to implement the PWM signals,
|
|
* - analog peripherals configuration such as ADC, DAC and comparators,
|
|
* - control algorithm for SMPS action (eg. PID loop)
|
|
*
|
|
* NOTE: This driver can also be used as "upper half" driver for programmable
|
|
* digital PWM controllers (eg. ADP1046), but it is not the main goal of
|
|
* current development.
|
|
*
|
|
*/
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
#include <nuttx/compiler.h>
|
|
|
|
#include <nuttx/power/power_ioctl.h>
|
|
#include <nuttx/semaphore.h>
|
|
|
|
#ifdef CONFIG_DRIVERS_SMPS
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
|
|
/* SMPS operation modes */
|
|
|
|
enum smps_opmode_e
|
|
{
|
|
SMPS_OPMODE_INIT = 0, /* Initial mode */
|
|
SMPS_OPMODE_CC = 1, /* Constant current mode */
|
|
SMPS_OPMODE_CV = 2, /* Constant voltage mode */
|
|
SMPS_OPMODE_CP = 3 /* Constant power mode */
|
|
};
|
|
|
|
/* SMPS state */
|
|
|
|
enum smps_state_e
|
|
{
|
|
SMPS_STATE_INIT = 0, /* Initial state */
|
|
SMPS_STATE_IDLE = 1, /* IDLE state */
|
|
SMPS_STATE_RUN = 2, /* Run state */
|
|
SMPS_STATE_FAULT = 3, /* Fault state */
|
|
SMPS_STATE_CRITICAL = 4 /* Critical Fault state */
|
|
};
|
|
|
|
/* SMPS fault type */
|
|
|
|
enum smps_fault_e
|
|
{
|
|
SMPS_FAULT_OVERCURRENT = (1 << 0), /* Over-current Fault */
|
|
SMPS_FAULT_OVERVOLTAGE = (1 << 1), /* Over-voltage Fault */
|
|
SMPS_FAULT_OVERPOWER = (1 << 2), /* Over-power Fault */
|
|
SMPS_FAULT_OVERTEMP = (1 << 3), /* Over-temperature Fault */
|
|
SMPS_FAULT_INVAL_PARAM = (1 << 4), /* Invalid parameter */
|
|
SMPS_FAULT_OTHER = (1 << 5) /* Other */
|
|
};
|
|
|
|
/* SMPS operation flags */
|
|
|
|
enum smps_opflags_s
|
|
{
|
|
SMPS_FLAG_NOLOAD = (1 << 0), /* No load */
|
|
SMPS_FLAG_SHARED_LOAD = (1 << 1), /* Shared Load mode */
|
|
SMPS_FLAG_BURST_MODE = (1 << 2) /* Burst mode */
|
|
};
|
|
|
|
/* This structure contain feedback data from converter */
|
|
|
|
struct smps_feedback_s
|
|
{
|
|
#ifdef CONFIG_SMPS_HAVE_OUTPUT_VOLTAGE
|
|
float v_out; /* Output Voltage */
|
|
#endif
|
|
#ifdef CONFIG_SMPS_HAVE_INPUT_VOLTAGE
|
|
float v_in; /* Input Voltage */
|
|
#endif
|
|
#ifdef CONFIG_SMPS_HAVE_OUTPUT_CURRENT
|
|
float i_out; /* Output Current */
|
|
#endif
|
|
#ifdef CONFIG_SMPS_HAVE_INPUT_CURRENT
|
|
float i_in; /* Input Current */
|
|
#endif
|
|
#ifdef CONFIG_SMPS_HAVE_INPUT_POWER
|
|
float p_in; /* Input Power */
|
|
#endif
|
|
#ifdef CONFIG_SMPS_HAVE_OUTPUT_POWER
|
|
float p_out; /* Output Power */
|
|
#endif
|
|
#ifdef CONFIG_SMPS_HAVE_EFFICIENCY
|
|
float eff; /* Converter Efficiency */
|
|
#endif
|
|
};
|
|
|
|
/* This structure describes converter state */
|
|
|
|
struct smps_state_s
|
|
{
|
|
uint8_t state; /* SMPS state */
|
|
uint8_t fault; /* SMPS faults state */
|
|
struct smps_feedback_s fb; /* Feedback from SMPS */
|
|
};
|
|
|
|
/* SMPS absolute limits. Exceeding this limits should cause critical error.
|
|
* This structure must be configured before SMPS params_set call.
|
|
* When limit is set to 0 then it is ignored.
|
|
*/
|
|
|
|
struct smps_limits_s
|
|
{
|
|
bool lock; /* This bit must be set after
|
|
* limits configuration.
|
|
*/
|
|
float v_in; /* Maximum input voltage */
|
|
float v_out; /* Maximum output voltage */
|
|
float i_in; /* Maximum input current */
|
|
float i_out; /* Maximum output current */
|
|
float p_in; /* Maximum input power */
|
|
float p_out; /* Maximum output power */
|
|
};
|
|
|
|
/* SMPS parameters */
|
|
|
|
struct smps_params_s
|
|
{
|
|
bool lock; /* Lock this structure. Set this bit
|
|
* if there is no need to change SMPS
|
|
* parameter during run-time.
|
|
*/
|
|
float v_out; /* */
|
|
float i_out; /* */
|
|
float p_out; /* */
|
|
};
|
|
|
|
/* SMPS private data structure */
|
|
|
|
struct smps_s
|
|
{
|
|
uint8_t opmode; /* SMPS operation mode */
|
|
uint8_t opflags; /* SMPS operation flags */
|
|
struct smps_limits_s limits; /* SMPS absolute limits */
|
|
struct smps_params_s param; /* SMPS settings */
|
|
struct smps_state_s state; /* SMPS state */
|
|
FAR void *priv; /* Private data */
|
|
};
|
|
|
|
/* SMPS operations used to call from the upper-half, generic SMPS driver
|
|
* into lower-half, platform-specific logic.
|
|
*/
|
|
|
|
struct smps_dev_s;
|
|
struct smps_ops_s
|
|
{
|
|
/* Configure SMPS */
|
|
|
|
CODE int (*setup)(FAR struct smps_dev_s *dev);
|
|
|
|
/* Disable converter action */
|
|
|
|
CODE int (*shutdown)(FAR struct smps_dev_s *dev);
|
|
|
|
/* Stop SMPS action */
|
|
|
|
CODE int (*stop)(FAR struct smps_dev_s *dev);
|
|
|
|
/* Start SMPS action */
|
|
|
|
CODE int (*start)(FAR struct smps_dev_s *dev);
|
|
|
|
/* Set SMPS parameters */
|
|
|
|
CODE int (*params_set)(FAR struct smps_dev_s *dev,
|
|
FAR struct smps_params_s *param);
|
|
|
|
/* Set SMPS operation mode */
|
|
|
|
CODE int (*mode_set)(FAR struct smps_dev_s *dev, uint8_t mode);
|
|
|
|
/* Set SMPS limits */
|
|
|
|
CODE int (*limits_set)(FAR struct smps_dev_s *dev,
|
|
FAR struct smps_limits_s *limits);
|
|
|
|
/* Set SMPS fault */
|
|
|
|
CODE int (*fault_set)(FAR struct smps_dev_s *dev, uint8_t fault);
|
|
|
|
/* Get SMPS state */
|
|
|
|
CODE int (*state_get)(FAR struct smps_dev_s *dev,
|
|
FAR struct smps_state_s *state);
|
|
|
|
/* Get current fault state */
|
|
|
|
CODE int (*fault_get)(FAR struct smps_dev_s *dev, FAR uint8_t *fault);
|
|
|
|
/* Clean fault state */
|
|
|
|
CODE int (*fault_clean)(FAR struct smps_dev_s *dev, uint8_t fault);
|
|
|
|
/* Lower-half logic may support platform-specific ioctl commands */
|
|
|
|
CODE int (*ioctl)(FAR struct smps_dev_s *dev, int cmd, unsigned long arg);
|
|
};
|
|
|
|
/* SMPS device structure used by the driver. The caller of smps_register
|
|
* must allocate and initialize this structure. The calling logic need
|
|
* provide 'ops', 'priv' and 'lower' elements.
|
|
*/
|
|
|
|
struct smps_dev_s
|
|
{
|
|
/* Fields managed by common upper half SMPS logic */
|
|
|
|
uint8_t ocount; /* The number of times the device
|
|
* has been opened
|
|
*/
|
|
sem_t closesem; /* Locks out new opens while close
|
|
* is in progress
|
|
*/
|
|
|
|
/* Fields provided by lower half SMPS logic */
|
|
|
|
FAR const struct smps_ops_s *ops; /* Arch-specific operations */
|
|
FAR void *priv; /* Reference to SMPS private data */
|
|
FAR void *lower; /* Reference to lower level drivers */
|
|
};
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
#ifdef __cplusplus
|
|
#define EXTERN extern "C"
|
|
extern "C"
|
|
{
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Name: smps_register
|
|
****************************************************************************/
|
|
|
|
int smps_register(FAR const char *path, FAR struct smps_dev_s *dev,
|
|
FAR void *lower);
|
|
|
|
#undef EXTERN
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* CONFIG_DRIVERS_SMPS */
|
|
#endif /* __INCLUDE_NUTTX_DRIVERS_POWER_SMPS_H */
|