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support frameworks(i.e. clk/reset/phy/tsensors/fuses...). The framework is still far from perfect and probably doesn't have stable interface yet, but we want to start testing it on more real boards and different architectures.
127 lines
4.7 KiB
C
127 lines
4.7 KiB
C
/*-
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* Copyright 2016 Michal Meloun <mmel@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _DEV_EXTRES_REGULATOR_H_
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#define _DEV_EXTRES_REGULATOR_H_
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#include "opt_platform.h"
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#include <sys/kobj.h>
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#ifdef FDT
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#include <dev/ofw/ofw_bus.h>
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#endif
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#include "regnode_if.h"
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#define REGULATOR_FLAGS_STATIC 0x00000001 /* Static strings */
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#define REGULATOR_FLAGS_NOT_DISABLE 0x00000002 /* Cannot be disabled */
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#define REGULATOR_STATUS_ENABLED 0x00000001
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#define REGULATOR_STATUS_OVERCURRENT 0x00000002
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typedef struct regulator *regulator_t;
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/* Standard regulator parameters. */
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struct regnode_std_param {
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int min_uvolt; /* In uV */
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int max_uvolt; /* In uV */
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int min_uamp; /* In uA */
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int max_uamp; /* In uA */
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int ramp_delay; /* In uV/usec */
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int enable_delay; /* In usec */
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bool boot_on; /* Is enabled on boot */
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bool always_on; /* Must be enabled */
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int enable_active_high;
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};
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/* Initialization parameters. */
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struct regnode_init_def {
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char *name; /* Regulator name */
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char *parent_name; /* Name of parent regulator */
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struct regnode_std_param std_param; /* Standard parameters */
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intptr_t id; /* Regulator ID */
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int flags; /* Flags */
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#ifdef FDT
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phandle_t ofw_node; /* OFW node of regulator */
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#endif
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};
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/*
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* Shorthands for constructing method tables.
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*/
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#define REGNODEMETHOD KOBJMETHOD
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#define REGNODEMETHOD_END KOBJMETHOD_END
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#define regnode_method_t kobj_method_t
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#define regnode_class_t kobj_class_t
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DECLARE_CLASS(regnode_class);
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/* Providers interface. */
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struct regnode *regnode_create(device_t pdev, regnode_class_t regnode_class,
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struct regnode_init_def *def);
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struct regnode *regnode_register(struct regnode *regnode);
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const char *regnode_get_name(struct regnode *regnode);
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const char *regnode_get_parent_name(struct regnode *regnode);
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struct regnode *regnode_get_parent(struct regnode *regnode);
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int regnode_get_flags(struct regnode *regnode);
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void *regnode_get_softc(struct regnode *regnode);
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device_t regnode_get_device(struct regnode *regnode);
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struct regnode_std_param *regnode_get_stdparam(struct regnode *regnode);
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void regnode_topo_unlock(void);
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void regnode_topo_xlock(void);
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void regnode_topo_slock(void);
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int regnode_enable(struct regnode *regnode);
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int regnode_disable(struct regnode *regnode);
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int regnode_stop(struct regnode *regnode, int depth);
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int regnode_status(struct regnode *regnode, int *status);
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int regnode_get_voltage(struct regnode *regnode, int *uvolt);
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int regnode_set_voltage(struct regnode *regnode, int min_uvolt, int max_uvolt);
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#ifdef FDT
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phandle_t regnode_get_ofw_node(struct regnode *regnode);
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#endif
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/* Consumers interface. */
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int regulator_get_by_name(device_t cdev, const char *name,
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regulator_t *regulator);
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int regulator_get_by_id(device_t cdev, device_t pdev, intptr_t id,
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regulator_t *regulator);
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int regulator_release(regulator_t regulator);
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const char *regulator_get_name(regulator_t regulator);
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int regulator_enable(regulator_t reg);
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int regulator_disable(regulator_t reg);
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int regulator_stop(regulator_t reg);
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int regulator_status(regulator_t reg, int *status);
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int regulator_get_voltage(regulator_t reg, int *uvolt);
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int regulator_set_voltage(regulator_t reg, int min_uvolt, int max_uvolt);
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#ifdef FDT
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int regulator_get_by_ofw_property(device_t dev, char *name, regulator_t *reg);
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int regulator_parse_ofw_stdparam(device_t dev, phandle_t node,
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struct regnode_init_def *def);
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#endif
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#endif /* _DEV_EXTRES_REGULATOR_H_ */
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