1422 lines
33 KiB
C
1422 lines
33 KiB
C
/*-
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* Copyright (c) 2015-2016 Emmanuel Vadot <manu@freebsd.org>
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* Copyright (c) 2016 Jared McNeill <jmcneill@invisible.ca>
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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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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* X-Power AXP209/AXP211 PMU for Allwinner SoCs
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/eventhandler.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/clock.h>
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#include <sys/time.h>
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#include <sys/bus.h>
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#include <sys/proc.h>
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#include <sys/gpio.h>
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#include <sys/reboot.h>
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#include <sys/resource.h>
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#include <sys/rman.h>
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#include <sys/sysctl.h>
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#include <dev/iicbus/iiconf.h>
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#include <dev/gpio/gpiobusvar.h>
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#include <dev/ofw/ofw_bus.h>
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#include <dev/ofw/ofw_bus_subr.h>
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#include <dev/extres/regulator/regulator.h>
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#include <arm/allwinner/axp209reg.h>
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#include "gpio_if.h"
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#include "regdev_if.h"
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MALLOC_DEFINE(M_AXP2XX_REG, "Axp2XX regulator", "Axp2XX power regulator");
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struct axp2xx_regdef {
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intptr_t id;
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char *name;
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uint8_t enable_reg;
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uint8_t enable_mask;
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uint8_t voltage_reg;
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uint8_t voltage_mask;
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uint8_t voltage_shift;
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int voltage_min;
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int voltage_max;
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int voltage_step;
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int voltage_nstep;
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};
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static struct axp2xx_regdef axp209_regdefs[] = {
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{
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.id = AXP209_REG_ID_DCDC2,
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.name = "dcdc2",
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.enable_reg = AXP209_POWERCTL,
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.enable_mask = AXP209_POWERCTL_DCDC2,
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.voltage_reg = AXP209_REG_DCDC2_VOLTAGE,
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.voltage_mask = 0x3f,
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.voltage_min = 700,
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.voltage_max = 2275,
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.voltage_step = 25,
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.voltage_nstep = 64,
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},
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{
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.id = AXP209_REG_ID_DCDC3,
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.name = "dcdc3",
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.enable_reg = AXP209_POWERCTL,
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.enable_mask = AXP209_POWERCTL_DCDC3,
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.voltage_reg = AXP209_REG_DCDC3_VOLTAGE,
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.voltage_mask = 0x7f,
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.voltage_min = 700,
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.voltage_max = 3500,
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.voltage_step = 25,
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.voltage_nstep = 128,
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},
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{
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.id = AXP209_REG_ID_LDO2,
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.name = "ldo2",
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.enable_reg = AXP209_POWERCTL,
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.enable_mask = AXP209_POWERCTL_LDO2,
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.voltage_reg = AXP209_REG_LDO24_VOLTAGE,
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.voltage_mask = 0xf0,
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.voltage_shift = 4,
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.voltage_min = 1800,
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.voltage_max = 3300,
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.voltage_step = 100,
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.voltage_nstep = 16,
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},
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{
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.id = AXP209_REG_ID_LDO3,
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.name = "ldo3",
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.enable_reg = AXP209_POWERCTL,
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.enable_mask = AXP209_POWERCTL_LDO3,
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.voltage_reg = AXP209_REG_LDO3_VOLTAGE,
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.voltage_mask = 0x7f,
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.voltage_min = 700,
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.voltage_max = 2275,
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.voltage_step = 25,
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.voltage_nstep = 128,
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},
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};
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static struct axp2xx_regdef axp221_regdefs[] = {
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{
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.id = AXP221_REG_ID_DLDO1,
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.name = "dldo1",
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.enable_reg = AXP221_POWERCTL_2,
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.enable_mask = AXP221_POWERCTL2_DLDO1,
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.voltage_reg = AXP221_REG_DLDO1_VOLTAGE,
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.voltage_mask = 0x1f,
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.voltage_min = 700,
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.voltage_max = 3300,
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.voltage_step = 100,
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.voltage_nstep = 26,
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},
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{
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.id = AXP221_REG_ID_DLDO2,
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.name = "dldo2",
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.enable_reg = AXP221_POWERCTL_2,
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.enable_mask = AXP221_POWERCTL2_DLDO2,
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.voltage_reg = AXP221_REG_DLDO2_VOLTAGE,
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.voltage_mask = 0x1f,
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.voltage_min = 700,
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.voltage_max = 3300,
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.voltage_step = 100,
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.voltage_nstep = 26,
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},
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{
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.id = AXP221_REG_ID_DLDO3,
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.name = "dldo3",
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.enable_reg = AXP221_POWERCTL_2,
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.enable_mask = AXP221_POWERCTL2_DLDO3,
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.voltage_reg = AXP221_REG_DLDO3_VOLTAGE,
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.voltage_mask = 0x1f,
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.voltage_min = 700,
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.voltage_max = 3300,
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.voltage_step = 100,
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.voltage_nstep = 26,
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},
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{
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.id = AXP221_REG_ID_DLDO4,
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.name = "dldo4",
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.enable_reg = AXP221_POWERCTL_2,
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.enable_mask = AXP221_POWERCTL2_DLDO4,
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.voltage_reg = AXP221_REG_DLDO4_VOLTAGE,
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.voltage_mask = 0x1f,
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.voltage_min = 700,
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.voltage_max = 3300,
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.voltage_step = 100,
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.voltage_nstep = 26,
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},
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{
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.id = AXP221_REG_ID_ELDO1,
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.name = "eldo1",
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.enable_reg = AXP221_POWERCTL_2,
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.enable_mask = AXP221_POWERCTL2_ELDO1,
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.voltage_reg = AXP221_REG_ELDO1_VOLTAGE,
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.voltage_mask = 0x1f,
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.voltage_min = 700,
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.voltage_max = 3300,
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.voltage_step = 100,
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.voltage_nstep = 26,
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},
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{
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.id = AXP221_REG_ID_ELDO2,
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.name = "eldo2",
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.enable_reg = AXP221_POWERCTL_2,
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.enable_mask = AXP221_POWERCTL2_ELDO2,
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.voltage_reg = AXP221_REG_ELDO2_VOLTAGE,
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.voltage_mask = 0x1f,
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.voltage_min = 700,
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.voltage_max = 3300,
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.voltage_step = 100,
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.voltage_nstep = 26,
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},
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{
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.id = AXP221_REG_ID_ELDO3,
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.name = "eldo3",
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.enable_reg = AXP221_POWERCTL_2,
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.enable_mask = AXP221_POWERCTL2_ELDO3,
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.voltage_reg = AXP221_REG_ELDO3_VOLTAGE,
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.voltage_mask = 0x1f,
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.voltage_min = 700,
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.voltage_max = 3300,
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.voltage_step = 100,
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.voltage_nstep = 26,
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},
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{
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.id = AXP221_REG_ID_DC5LDO,
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.name = "dc5ldo",
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.enable_reg = AXP221_POWERCTL_1,
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.enable_mask = AXP221_POWERCTL1_DC5LDO,
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.voltage_reg = AXP221_REG_DC5LDO_VOLTAGE,
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.voltage_mask = 0x3,
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.voltage_min = 700,
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.voltage_max = 1400,
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.voltage_step = 100,
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.voltage_nstep = 7,
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},
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{
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.id = AXP221_REG_ID_DCDC1,
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.name = "dcdc1",
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.enable_reg = AXP221_POWERCTL_1,
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.enable_mask = AXP221_POWERCTL1_DCDC1,
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.voltage_reg = AXP221_REG_DCDC1_VOLTAGE,
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.voltage_mask = 0x1f,
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.voltage_min = 1600,
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.voltage_max = 3400,
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.voltage_step = 100,
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.voltage_nstep = 18,
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},
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{
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.id = AXP221_REG_ID_DCDC2,
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.name = "dcdc2",
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.enable_reg = AXP221_POWERCTL_1,
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.enable_mask = AXP221_POWERCTL1_DCDC2,
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.voltage_reg = AXP221_REG_DCDC2_VOLTAGE,
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.voltage_mask = 0x3f,
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.voltage_min = 600,
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.voltage_max = 1540,
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.voltage_step = 20,
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.voltage_nstep = 47,
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},
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{
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.id = AXP221_REG_ID_DCDC3,
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.name = "dcdc3",
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.enable_reg = AXP221_POWERCTL_1,
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.enable_mask = AXP221_POWERCTL1_DCDC3,
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.voltage_reg = AXP221_REG_DCDC3_VOLTAGE,
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.voltage_mask = 0x3f,
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.voltage_min = 600,
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.voltage_max = 1860,
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.voltage_step = 20,
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.voltage_nstep = 63,
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},
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{
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.id = AXP221_REG_ID_DCDC4,
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.name = "dcdc4",
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.enable_reg = AXP221_POWERCTL_1,
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.enable_mask = AXP221_POWERCTL1_DCDC4,
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.voltage_reg = AXP221_REG_DCDC4_VOLTAGE,
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.voltage_mask = 0x3f,
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.voltage_min = 600,
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.voltage_max = 1540,
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.voltage_step = 20,
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.voltage_nstep = 47,
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},
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{
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.id = AXP221_REG_ID_DCDC5,
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.name = "dcdc5",
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.enable_reg = AXP221_POWERCTL_1,
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.enable_mask = AXP221_POWERCTL1_DCDC5,
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.voltage_reg = AXP221_REG_DCDC5_VOLTAGE,
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.voltage_mask = 0x1f,
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.voltage_min = 1000,
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.voltage_max = 2550,
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.voltage_step = 50,
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.voltage_nstep = 31,
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},
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{
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.id = AXP221_REG_ID_ALDO1,
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.name = "aldo1",
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.enable_reg = AXP221_POWERCTL_1,
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.enable_mask = AXP221_POWERCTL1_ALDO1,
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.voltage_reg = AXP221_REG_ALDO1_VOLTAGE,
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.voltage_mask = 0x1f,
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.voltage_min = 700,
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.voltage_max = 3300,
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.voltage_step = 100,
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.voltage_nstep = 26,
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},
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{
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.id = AXP221_REG_ID_ALDO2,
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.name = "aldo2",
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.enable_reg = AXP221_POWERCTL_1,
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.enable_mask = AXP221_POWERCTL1_ALDO2,
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.voltage_reg = AXP221_REG_ALDO2_VOLTAGE,
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.voltage_mask = 0x1f,
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.voltage_min = 700,
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.voltage_max = 3300,
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.voltage_step = 100,
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.voltage_nstep = 26,
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},
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{
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.id = AXP221_REG_ID_ALDO3,
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.name = "aldo3",
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.enable_reg = AXP221_POWERCTL_3,
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.enable_mask = AXP221_POWERCTL3_ALDO3,
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.voltage_reg = AXP221_REG_ALDO3_VOLTAGE,
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.voltage_mask = 0x1f,
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.voltage_min = 700,
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.voltage_max = 3300,
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.voltage_step = 100,
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.voltage_nstep = 26,
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},
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{
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.id = AXP221_REG_ID_DC1SW,
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.name = "dc1sw",
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.enable_reg = AXP221_POWERCTL_2,
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.enable_mask = AXP221_POWERCTL2_DC1SW,
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},
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};
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struct axp2xx_reg_sc {
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struct regnode *regnode;
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device_t base_dev;
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struct axp2xx_regdef *def;
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phandle_t xref;
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struct regnode_std_param *param;
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};
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struct axp2xx_pins {
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const char *name;
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uint8_t ctrl_reg;
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uint8_t status_reg;
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uint8_t status_mask;
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uint8_t status_shift;
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};
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/* GPIO3 is different, don't expose it for now */
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static const struct axp2xx_pins axp209_pins[] = {
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{
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.name = "GPIO0",
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.ctrl_reg = AXP2XX_GPIO0_CTRL,
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.status_reg = AXP2XX_GPIO_STATUS,
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.status_mask = 0x10,
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.status_shift = 4,
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},
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{
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.name = "GPIO1",
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.ctrl_reg = AXP2XX_GPIO1_CTRL,
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.status_reg = AXP2XX_GPIO_STATUS,
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.status_mask = 0x20,
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.status_shift = 5,
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},
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{
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.name = "GPIO2",
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.ctrl_reg = AXP209_GPIO2_CTRL,
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.status_reg = AXP2XX_GPIO_STATUS,
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.status_mask = 0x40,
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.status_shift = 6,
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},
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};
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static const struct axp2xx_pins axp221_pins[] = {
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{
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.name = "GPIO0",
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.ctrl_reg = AXP2XX_GPIO0_CTRL,
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.status_reg = AXP2XX_GPIO_STATUS,
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.status_mask = 0x1,
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.status_shift = 0x0,
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},
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{
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.name = "GPIO1",
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.ctrl_reg = AXP2XX_GPIO0_CTRL,
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.status_reg = AXP2XX_GPIO_STATUS,
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.status_mask = 0x2,
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.status_shift = 0x1,
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},
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};
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struct axp2xx_sensors {
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int id;
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const char *name;
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const char *desc;
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const char *format;
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uint8_t enable_reg;
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uint8_t enable_mask;
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uint8_t value_reg;
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uint8_t value_size;
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uint8_t h_value_mask;
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uint8_t h_value_shift;
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uint8_t l_value_mask;
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uint8_t l_value_shift;
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int value_step;
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int value_convert;
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};
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static const struct axp2xx_sensors axp209_sensors[] = {
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{
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.id = AXP209_ACVOLT,
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.name = "acvolt",
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.desc = "AC Voltage (microvolt)",
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.format = "I",
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.enable_reg = AXP2XX_ADC_ENABLE1,
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.enable_mask = AXP209_ADC1_ACVOLT,
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.value_reg = AXP209_ACIN_VOLTAGE,
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.value_size = 2,
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.h_value_mask = 0xff,
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.h_value_shift = 4,
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.l_value_mask = 0xf,
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.l_value_shift = 0,
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.value_step = AXP209_VOLT_STEP,
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},
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{
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.id = AXP209_ACCURRENT,
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.name = "accurrent",
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.desc = "AC Current (microAmpere)",
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.format = "I",
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.enable_reg = AXP2XX_ADC_ENABLE1,
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.enable_mask = AXP209_ADC1_ACCURRENT,
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.value_reg = AXP209_ACIN_CURRENT,
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.value_size = 2,
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.h_value_mask = 0xff,
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.h_value_shift = 4,
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.l_value_mask = 0xf,
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.l_value_shift = 0,
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.value_step = AXP209_ACCURRENT_STEP,
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},
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{
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.id = AXP209_VBUSVOLT,
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.name = "vbusvolt",
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.desc = "VBUS Voltage (microVolt)",
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.format = "I",
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.enable_reg = AXP2XX_ADC_ENABLE1,
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.enable_mask = AXP209_ADC1_VBUSVOLT,
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.value_reg = AXP209_VBUS_VOLTAGE,
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.value_size = 2,
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.h_value_mask = 0xff,
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.h_value_shift = 4,
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.l_value_mask = 0xf,
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.l_value_shift = 0,
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.value_step = AXP209_VOLT_STEP,
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},
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{
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.id = AXP209_VBUSCURRENT,
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.name = "vbuscurrent",
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.desc = "VBUS Current (microAmpere)",
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.format = "I",
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.enable_reg = AXP2XX_ADC_ENABLE1,
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.enable_mask = AXP209_ADC1_VBUSCURRENT,
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.value_reg = AXP209_VBUS_CURRENT,
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.value_size = 2,
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.h_value_mask = 0xff,
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.h_value_shift = 4,
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.l_value_mask = 0xf,
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.l_value_shift = 0,
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.value_step = AXP209_VBUSCURRENT_STEP,
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},
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{
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.id = AXP2XX_BATVOLT,
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.name = "batvolt",
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.desc = "Battery Voltage (microVolt)",
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.format = "I",
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.enable_reg = AXP2XX_ADC_ENABLE1,
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.enable_mask = AXP2XX_ADC1_BATVOLT,
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.value_reg = AXP2XX_BAT_VOLTAGE,
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.value_size = 2,
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.h_value_mask = 0xff,
|
|
.h_value_shift = 4,
|
|
.l_value_mask = 0xf,
|
|
.l_value_shift = 0,
|
|
.value_step = AXP2XX_BATVOLT_STEP,
|
|
},
|
|
{
|
|
.id = AXP2XX_BATCHARGECURRENT,
|
|
.name = "batchargecurrent",
|
|
.desc = "Battery Charging Current (microAmpere)",
|
|
.format = "I",
|
|
.enable_reg = AXP2XX_ADC_ENABLE1,
|
|
.enable_mask = AXP2XX_ADC1_BATCURRENT,
|
|
.value_reg = AXP2XX_BAT_CHARGE_CURRENT,
|
|
.value_size = 2,
|
|
.h_value_mask = 0xff,
|
|
.h_value_shift = 5,
|
|
.l_value_mask = 0x1f,
|
|
.l_value_shift = 0,
|
|
.value_step = AXP2XX_BATCURRENT_STEP,
|
|
},
|
|
{
|
|
.id = AXP2XX_BATDISCHARGECURRENT,
|
|
.name = "batdischargecurrent",
|
|
.desc = "Battery Discharging Current (microAmpere)",
|
|
.format = "I",
|
|
.enable_reg = AXP2XX_ADC_ENABLE1,
|
|
.enable_mask = AXP2XX_ADC1_BATCURRENT,
|
|
.value_reg = AXP2XX_BAT_DISCHARGE_CURRENT,
|
|
.value_size = 2,
|
|
.h_value_mask = 0xff,
|
|
.h_value_shift = 5,
|
|
.l_value_mask = 0x1f,
|
|
.l_value_shift = 0,
|
|
.value_step = AXP2XX_BATCURRENT_STEP,
|
|
},
|
|
{
|
|
.id = AXP2XX_TEMP,
|
|
.name = "temp",
|
|
.desc = "Internal Temperature",
|
|
.format = "IK",
|
|
.enable_reg = AXP209_ADC_ENABLE2,
|
|
.enable_mask = AXP209_ADC2_TEMP,
|
|
.value_reg = AXP209_TEMPMON,
|
|
.value_size = 2,
|
|
.h_value_mask = 0xff,
|
|
.h_value_shift = 4,
|
|
.l_value_mask = 0xf,
|
|
.l_value_shift = 0,
|
|
.value_step = 1,
|
|
.value_convert = -(AXP209_TEMPMON_MIN - AXP209_0C_TO_K),
|
|
},
|
|
};
|
|
|
|
static const struct axp2xx_sensors axp221_sensors[] = {
|
|
{
|
|
.id = AXP2XX_BATVOLT,
|
|
.name = "batvolt",
|
|
.desc = "Battery Voltage (microVolt)",
|
|
.format = "I",
|
|
.enable_reg = AXP2XX_ADC_ENABLE1,
|
|
.enable_mask = AXP2XX_ADC1_BATVOLT,
|
|
.value_reg = AXP2XX_BAT_VOLTAGE,
|
|
.value_size = 2,
|
|
.h_value_mask = 0xff,
|
|
.h_value_shift = 4,
|
|
.l_value_mask = 0xf,
|
|
.l_value_shift = 0,
|
|
.value_step = AXP2XX_BATVOLT_STEP,
|
|
},
|
|
{
|
|
.id = AXP2XX_BATCHARGECURRENT,
|
|
.name = "batchargecurrent",
|
|
.desc = "Battery Charging Current (microAmpere)",
|
|
.format = "I",
|
|
.enable_reg = AXP2XX_ADC_ENABLE1,
|
|
.enable_mask = AXP2XX_ADC1_BATCURRENT,
|
|
.value_reg = AXP2XX_BAT_CHARGE_CURRENT,
|
|
.value_size = 2,
|
|
.h_value_mask = 0xff,
|
|
.h_value_shift = 5,
|
|
.l_value_mask = 0x1f,
|
|
.l_value_shift = 0,
|
|
.value_step = AXP2XX_BATCURRENT_STEP,
|
|
},
|
|
{
|
|
.id = AXP2XX_BATDISCHARGECURRENT,
|
|
.name = "batdischargecurrent",
|
|
.desc = "Battery Discharging Current (microAmpere)",
|
|
.format = "I",
|
|
.enable_reg = AXP2XX_ADC_ENABLE1,
|
|
.enable_mask = AXP2XX_ADC1_BATCURRENT,
|
|
.value_reg = AXP2XX_BAT_DISCHARGE_CURRENT,
|
|
.value_size = 2,
|
|
.h_value_mask = 0xff,
|
|
.h_value_shift = 5,
|
|
.l_value_mask = 0x1f,
|
|
.l_value_shift = 0,
|
|
.value_step = AXP2XX_BATCURRENT_STEP,
|
|
},
|
|
{
|
|
.id = AXP2XX_TEMP,
|
|
.name = "temp",
|
|
.desc = "Internal Temperature",
|
|
.format = "IK",
|
|
.enable_reg = AXP2XX_ADC_ENABLE1,
|
|
.enable_mask = AXP221_ADC1_TEMP,
|
|
.value_reg = AXP221_TEMPMON,
|
|
.value_size = 2,
|
|
.h_value_mask = 0xff,
|
|
.h_value_shift = 4,
|
|
.l_value_mask = 0xf,
|
|
.l_value_shift = 0,
|
|
.value_step = 1,
|
|
.value_convert = -(AXP221_TEMPMON_MIN - AXP209_0C_TO_K),
|
|
},
|
|
};
|
|
|
|
enum AXP2XX_TYPE {
|
|
AXP209 = 1,
|
|
AXP221,
|
|
};
|
|
|
|
struct axp2xx_softc {
|
|
device_t dev;
|
|
struct resource * res[1];
|
|
void * intrcookie;
|
|
struct intr_config_hook intr_hook;
|
|
struct mtx mtx;
|
|
uint8_t type;
|
|
|
|
/* GPIO */
|
|
device_t gpiodev;
|
|
int npins;
|
|
const struct axp2xx_pins *pins;
|
|
|
|
/* Sensors */
|
|
const struct axp2xx_sensors *sensors;
|
|
int nsensors;
|
|
|
|
/* Regulators */
|
|
struct axp2xx_reg_sc **regs;
|
|
int nregs;
|
|
struct axp2xx_regdef *regdefs;
|
|
};
|
|
|
|
static struct ofw_compat_data compat_data[] = {
|
|
{ "x-powers,axp209", AXP209 },
|
|
{ "x-powers,axp221", AXP221 },
|
|
{ NULL, 0 }
|
|
};
|
|
|
|
static struct resource_spec axp_res_spec[] = {
|
|
{ SYS_RES_IRQ, 0, RF_ACTIVE },
|
|
{ -1, 0, 0 }
|
|
};
|
|
|
|
#define AXP_LOCK(sc) mtx_lock(&(sc)->mtx)
|
|
#define AXP_UNLOCK(sc) mtx_unlock(&(sc)->mtx)
|
|
|
|
static int
|
|
axp2xx_read(device_t dev, uint8_t reg, uint8_t *data, uint8_t size)
|
|
{
|
|
|
|
return (iicdev_readfrom(dev, reg, data, size, IIC_INTRWAIT));
|
|
}
|
|
|
|
static int
|
|
axp2xx_write(device_t dev, uint8_t reg, uint8_t data)
|
|
{
|
|
|
|
return (iicdev_writeto(dev, reg, &data, sizeof(data), IIC_INTRWAIT));
|
|
}
|
|
|
|
static int
|
|
axp2xx_regnode_init(struct regnode *regnode)
|
|
{
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
axp2xx_regnode_enable(struct regnode *regnode, bool enable, int *udelay)
|
|
{
|
|
struct axp2xx_reg_sc *sc;
|
|
uint8_t val;
|
|
|
|
sc = regnode_get_softc(regnode);
|
|
|
|
axp2xx_read(sc->base_dev, sc->def->enable_reg, &val, 1);
|
|
if (enable)
|
|
val |= sc->def->enable_mask;
|
|
else
|
|
val &= ~sc->def->enable_mask;
|
|
axp2xx_write(sc->base_dev, sc->def->enable_reg, val);
|
|
|
|
*udelay = 0;
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
axp2xx_regnode_reg_to_voltage(struct axp2xx_reg_sc *sc, uint8_t val, int *uv)
|
|
{
|
|
if (val < sc->def->voltage_nstep)
|
|
*uv = sc->def->voltage_min + val * sc->def->voltage_step;
|
|
else
|
|
*uv = sc->def->voltage_min +
|
|
(sc->def->voltage_nstep * sc->def->voltage_step);
|
|
*uv *= 1000;
|
|
}
|
|
|
|
static int
|
|
axp2xx_regnode_voltage_to_reg(struct axp2xx_reg_sc *sc, int min_uvolt,
|
|
int max_uvolt, uint8_t *val)
|
|
{
|
|
uint8_t nval;
|
|
int nstep, uvolt;
|
|
|
|
nval = 0;
|
|
uvolt = sc->def->voltage_min * 1000;
|
|
|
|
for (nstep = 0; nstep < sc->def->voltage_nstep && uvolt < min_uvolt;
|
|
nstep++) {
|
|
++nval;
|
|
uvolt += (sc->def->voltage_step * 1000);
|
|
}
|
|
if (uvolt > max_uvolt)
|
|
return (EINVAL);
|
|
|
|
*val = nval;
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
axp2xx_regnode_status(struct regnode *regnode, int *status)
|
|
{
|
|
struct axp2xx_reg_sc *sc;
|
|
uint8_t val;
|
|
|
|
sc = regnode_get_softc(regnode);
|
|
|
|
*status = 0;
|
|
axp2xx_read(sc->base_dev, sc->def->enable_reg, &val, 1);
|
|
if (val & sc->def->enable_mask)
|
|
*status = REGULATOR_STATUS_ENABLED;
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
axp2xx_regnode_set_voltage(struct regnode *regnode, int min_uvolt,
|
|
int max_uvolt, int *udelay)
|
|
{
|
|
struct axp2xx_reg_sc *sc;
|
|
uint8_t val;
|
|
|
|
sc = regnode_get_softc(regnode);
|
|
|
|
if (!sc->def->voltage_step)
|
|
return (ENXIO);
|
|
|
|
if (axp2xx_regnode_voltage_to_reg(sc, min_uvolt, max_uvolt, &val) != 0)
|
|
return (ERANGE);
|
|
|
|
axp2xx_write(sc->base_dev, sc->def->voltage_reg, val);
|
|
|
|
*udelay = 0;
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
axp2xx_regnode_get_voltage(struct regnode *regnode, int *uvolt)
|
|
{
|
|
struct axp2xx_reg_sc *sc;
|
|
uint8_t val;
|
|
|
|
sc = regnode_get_softc(regnode);
|
|
|
|
if (!sc->def->voltage_step)
|
|
return (ENXIO);
|
|
|
|
axp2xx_read(sc->base_dev, sc->def->voltage_reg, &val, 1);
|
|
axp2xx_regnode_reg_to_voltage(sc, val & sc->def->voltage_mask, uvolt);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static regnode_method_t axp2xx_regnode_methods[] = {
|
|
/* Regulator interface */
|
|
REGNODEMETHOD(regnode_init, axp2xx_regnode_init),
|
|
REGNODEMETHOD(regnode_enable, axp2xx_regnode_enable),
|
|
REGNODEMETHOD(regnode_status, axp2xx_regnode_status),
|
|
REGNODEMETHOD(regnode_set_voltage, axp2xx_regnode_set_voltage),
|
|
REGNODEMETHOD(regnode_get_voltage, axp2xx_regnode_get_voltage),
|
|
REGNODEMETHOD(regnode_check_voltage, regnode_method_check_voltage),
|
|
REGNODEMETHOD_END
|
|
};
|
|
DEFINE_CLASS_1(axp2xx_regnode, axp2xx_regnode_class, axp2xx_regnode_methods,
|
|
sizeof(struct axp2xx_reg_sc), regnode_class);
|
|
|
|
static int
|
|
axp2xx_sysctl(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct axp2xx_softc *sc;
|
|
device_t dev = arg1;
|
|
enum axp2xx_sensor sensor = arg2;
|
|
uint8_t data[2];
|
|
int val, error, i, found;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
for (found = 0, i = 0; i < sc->nsensors; i++) {
|
|
if (sc->sensors[i].id == sensor) {
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (found == 0)
|
|
return (ENOENT);
|
|
|
|
error = axp2xx_read(dev, sc->sensors[i].value_reg, data, 2);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
val = ((data[0] & sc->sensors[i].h_value_mask) <<
|
|
sc->sensors[i].h_value_shift);
|
|
val |= ((data[1] & sc->sensors[i].l_value_mask) <<
|
|
sc->sensors[i].l_value_shift);
|
|
val *= sc->sensors[i].value_step;
|
|
val += sc->sensors[i].value_convert;
|
|
|
|
return sysctl_handle_opaque(oidp, &val, sizeof(val), req);
|
|
}
|
|
|
|
static void
|
|
axp2xx_shutdown(void *devp, int howto)
|
|
{
|
|
device_t dev;
|
|
|
|
if (!(howto & RB_POWEROFF))
|
|
return;
|
|
dev = (device_t)devp;
|
|
|
|
if (bootverbose)
|
|
device_printf(dev, "Shutdown AXP2xx\n");
|
|
|
|
axp2xx_write(dev, AXP2XX_SHUTBAT, AXP2XX_SHUTBAT_SHUTDOWN);
|
|
}
|
|
|
|
static void
|
|
axp2xx_intr(void *arg)
|
|
{
|
|
struct axp2xx_softc *sc;
|
|
uint8_t reg;
|
|
|
|
sc = arg;
|
|
|
|
axp2xx_read(sc->dev, AXP2XX_IRQ1_STATUS, ®, 1);
|
|
if (reg) {
|
|
if (reg & AXP2XX_IRQ1_AC_OVERVOLT)
|
|
devctl_notify("PMU", "AC", "overvoltage", NULL);
|
|
if (reg & AXP2XX_IRQ1_VBUS_OVERVOLT)
|
|
devctl_notify("PMU", "USB", "overvoltage", NULL);
|
|
if (reg & AXP2XX_IRQ1_VBUS_LOW)
|
|
devctl_notify("PMU", "USB", "undervoltage", NULL);
|
|
if (reg & AXP2XX_IRQ1_AC_CONN)
|
|
devctl_notify("PMU", "AC", "plugged", NULL);
|
|
if (reg & AXP2XX_IRQ1_AC_DISCONN)
|
|
devctl_notify("PMU", "AC", "unplugged", NULL);
|
|
if (reg & AXP2XX_IRQ1_VBUS_CONN)
|
|
devctl_notify("PMU", "USB", "plugged", NULL);
|
|
if (reg & AXP2XX_IRQ1_VBUS_DISCONN)
|
|
devctl_notify("PMU", "USB", "unplugged", NULL);
|
|
axp2xx_write(sc->dev, AXP2XX_IRQ1_STATUS, AXP2XX_IRQ_ACK);
|
|
}
|
|
|
|
axp2xx_read(sc->dev, AXP2XX_IRQ2_STATUS, ®, 1);
|
|
if (reg) {
|
|
if (reg & AXP2XX_IRQ2_BATT_CHARGED)
|
|
devctl_notify("PMU", "Battery", "charged", NULL);
|
|
if (reg & AXP2XX_IRQ2_BATT_CHARGING)
|
|
devctl_notify("PMU", "Battery", "charging", NULL);
|
|
if (reg & AXP2XX_IRQ2_BATT_CONN)
|
|
devctl_notify("PMU", "Battery", "connected", NULL);
|
|
if (reg & AXP2XX_IRQ2_BATT_DISCONN)
|
|
devctl_notify("PMU", "Battery", "disconnected", NULL);
|
|
if (reg & AXP2XX_IRQ2_BATT_TEMP_LOW)
|
|
devctl_notify("PMU", "Battery", "low-temp", NULL);
|
|
if (reg & AXP2XX_IRQ2_BATT_TEMP_OVER)
|
|
devctl_notify("PMU", "Battery", "high-temp", NULL);
|
|
axp2xx_write(sc->dev, AXP2XX_IRQ2_STATUS, AXP2XX_IRQ_ACK);
|
|
}
|
|
|
|
axp2xx_read(sc->dev, AXP2XX_IRQ3_STATUS, ®, 1);
|
|
if (reg) {
|
|
if (reg & AXP2XX_IRQ3_PEK_SHORT)
|
|
shutdown_nice(RB_POWEROFF);
|
|
axp2xx_write(sc->dev, AXP2XX_IRQ3_STATUS, AXP2XX_IRQ_ACK);
|
|
}
|
|
|
|
axp2xx_read(sc->dev, AXP2XX_IRQ4_STATUS, ®, 1);
|
|
if (reg) {
|
|
axp2xx_write(sc->dev, AXP2XX_IRQ4_STATUS, AXP2XX_IRQ_ACK);
|
|
}
|
|
|
|
axp2xx_read(sc->dev, AXP2XX_IRQ5_STATUS, ®, 1);
|
|
if (reg) {
|
|
axp2xx_write(sc->dev, AXP2XX_IRQ5_STATUS, AXP2XX_IRQ_ACK);
|
|
}
|
|
}
|
|
|
|
static device_t
|
|
axp2xx_gpio_get_bus(device_t dev)
|
|
{
|
|
struct axp2xx_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
return (sc->gpiodev);
|
|
}
|
|
|
|
static int
|
|
axp2xx_gpio_pin_max(device_t dev, int *maxpin)
|
|
{
|
|
struct axp2xx_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
*maxpin = sc->npins - 1;
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
axp2xx_gpio_pin_getname(device_t dev, uint32_t pin, char *name)
|
|
{
|
|
struct axp2xx_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
if (pin >= sc->npins)
|
|
return (EINVAL);
|
|
|
|
snprintf(name, GPIOMAXNAME, "%s", axp209_pins[pin].name);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
axp2xx_gpio_pin_getcaps(device_t dev, uint32_t pin, uint32_t *caps)
|
|
{
|
|
struct axp2xx_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
if (pin >= sc->npins)
|
|
return (EINVAL);
|
|
|
|
*caps = GPIO_PIN_INPUT | GPIO_PIN_OUTPUT;
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
axp2xx_gpio_pin_getflags(device_t dev, uint32_t pin, uint32_t *flags)
|
|
{
|
|
struct axp2xx_softc *sc;
|
|
uint8_t data, func;
|
|
int error;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
if (pin >= sc->npins)
|
|
return (EINVAL);
|
|
|
|
AXP_LOCK(sc);
|
|
error = axp2xx_read(dev, sc->pins[pin].ctrl_reg, &data, 1);
|
|
if (error == 0) {
|
|
func = data & AXP2XX_GPIO_FUNC_MASK;
|
|
if (func == AXP2XX_GPIO_FUNC_INPUT)
|
|
*flags = GPIO_PIN_INPUT;
|
|
else if (func == AXP2XX_GPIO_FUNC_DRVLO ||
|
|
func == AXP2XX_GPIO_FUNC_DRVHI)
|
|
*flags = GPIO_PIN_OUTPUT;
|
|
else
|
|
*flags = 0;
|
|
}
|
|
AXP_UNLOCK(sc);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
axp2xx_gpio_pin_setflags(device_t dev, uint32_t pin, uint32_t flags)
|
|
{
|
|
struct axp2xx_softc *sc;
|
|
uint8_t data;
|
|
int error;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
if (pin >= sc->npins)
|
|
return (EINVAL);
|
|
|
|
AXP_LOCK(sc);
|
|
error = axp2xx_read(dev, sc->pins[pin].ctrl_reg, &data, 1);
|
|
if (error == 0) {
|
|
data &= ~AXP2XX_GPIO_FUNC_MASK;
|
|
if ((flags & (GPIO_PIN_INPUT|GPIO_PIN_OUTPUT)) != 0) {
|
|
if ((flags & GPIO_PIN_OUTPUT) == 0)
|
|
data |= AXP2XX_GPIO_FUNC_INPUT;
|
|
}
|
|
error = axp2xx_write(dev, sc->pins[pin].ctrl_reg, data);
|
|
}
|
|
AXP_UNLOCK(sc);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
axp2xx_gpio_pin_get(device_t dev, uint32_t pin, unsigned int *val)
|
|
{
|
|
struct axp2xx_softc *sc;
|
|
uint8_t data, func;
|
|
int error;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
if (pin >= sc->npins)
|
|
return (EINVAL);
|
|
|
|
AXP_LOCK(sc);
|
|
error = axp2xx_read(dev, sc->pins[pin].ctrl_reg, &data, 1);
|
|
if (error == 0) {
|
|
func = data & AXP2XX_GPIO_FUNC_MASK;
|
|
switch (func) {
|
|
case AXP2XX_GPIO_FUNC_DRVLO:
|
|
*val = 0;
|
|
break;
|
|
case AXP2XX_GPIO_FUNC_DRVHI:
|
|
*val = 1;
|
|
break;
|
|
case AXP2XX_GPIO_FUNC_INPUT:
|
|
error = axp2xx_read(dev, sc->pins[pin].status_reg,
|
|
&data, 1);
|
|
if (error == 0) {
|
|
*val = (data & sc->pins[pin].status_mask);
|
|
*val >>= sc->pins[pin].status_shift;
|
|
}
|
|
break;
|
|
default:
|
|
error = EIO;
|
|
break;
|
|
}
|
|
}
|
|
AXP_UNLOCK(sc);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
axp2xx_gpio_pin_set(device_t dev, uint32_t pin, unsigned int val)
|
|
{
|
|
struct axp2xx_softc *sc;
|
|
uint8_t data, func;
|
|
int error;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
if (pin >= sc->npins)
|
|
return (EINVAL);
|
|
|
|
AXP_LOCK(sc);
|
|
error = axp2xx_read(dev, sc->pins[pin].ctrl_reg, &data, 1);
|
|
if (error == 0) {
|
|
func = data & AXP2XX_GPIO_FUNC_MASK;
|
|
switch (func) {
|
|
case AXP2XX_GPIO_FUNC_DRVLO:
|
|
case AXP2XX_GPIO_FUNC_DRVHI:
|
|
/* GPIO2 can't be set to 1 */
|
|
if (pin == 2 && val == 1) {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
data &= ~AXP2XX_GPIO_FUNC_MASK;
|
|
data |= val;
|
|
break;
|
|
default:
|
|
error = EIO;
|
|
break;
|
|
}
|
|
}
|
|
if (error == 0)
|
|
error = axp2xx_write(dev, sc->pins[pin].ctrl_reg, data);
|
|
AXP_UNLOCK(sc);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
axp2xx_gpio_pin_toggle(device_t dev, uint32_t pin)
|
|
{
|
|
struct axp2xx_softc *sc;
|
|
uint8_t data, func;
|
|
int error;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
if (pin >= sc->npins)
|
|
return (EINVAL);
|
|
|
|
AXP_LOCK(sc);
|
|
error = axp2xx_read(dev, sc->pins[pin].ctrl_reg, &data, 1);
|
|
if (error == 0) {
|
|
func = data & AXP2XX_GPIO_FUNC_MASK;
|
|
switch (func) {
|
|
case AXP2XX_GPIO_FUNC_DRVLO:
|
|
/* Pin 2 can't be set to 1*/
|
|
if (pin == 2) {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
data &= ~AXP2XX_GPIO_FUNC_MASK;
|
|
data |= AXP2XX_GPIO_FUNC_DRVHI;
|
|
break;
|
|
case AXP2XX_GPIO_FUNC_DRVHI:
|
|
data &= ~AXP2XX_GPIO_FUNC_MASK;
|
|
data |= AXP2XX_GPIO_FUNC_DRVLO;
|
|
break;
|
|
default:
|
|
error = EIO;
|
|
break;
|
|
}
|
|
}
|
|
if (error == 0)
|
|
error = axp2xx_write(dev, sc->pins[pin].ctrl_reg, data);
|
|
AXP_UNLOCK(sc);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
axp2xx_gpio_map_gpios(device_t bus, phandle_t dev, phandle_t gparent,
|
|
int gcells, pcell_t *gpios, uint32_t *pin, uint32_t *flags)
|
|
{
|
|
struct axp2xx_softc *sc;
|
|
|
|
sc = device_get_softc(bus);
|
|
|
|
if (gpios[0] >= sc->npins)
|
|
return (EINVAL);
|
|
|
|
*pin = gpios[0];
|
|
*flags = gpios[1];
|
|
|
|
return (0);
|
|
}
|
|
|
|
static phandle_t
|
|
axp2xx_get_node(device_t dev, device_t bus)
|
|
{
|
|
return (ofw_bus_get_node(dev));
|
|
}
|
|
|
|
static struct axp2xx_reg_sc *
|
|
axp2xx_reg_attach(device_t dev, phandle_t node,
|
|
struct axp2xx_regdef *def)
|
|
{
|
|
struct axp2xx_reg_sc *reg_sc;
|
|
struct regnode_init_def initdef;
|
|
struct regnode *regnode;
|
|
|
|
memset(&initdef, 0, sizeof(initdef));
|
|
if (regulator_parse_ofw_stdparam(dev, node, &initdef) != 0) {
|
|
device_printf(dev, "cannot create regulator\n");
|
|
return (NULL);
|
|
}
|
|
if (initdef.std_param.min_uvolt == 0)
|
|
initdef.std_param.min_uvolt = def->voltage_min * 1000;
|
|
if (initdef.std_param.max_uvolt == 0)
|
|
initdef.std_param.max_uvolt = def->voltage_max * 1000;
|
|
initdef.id = def->id;
|
|
initdef.ofw_node = node;
|
|
regnode = regnode_create(dev, &axp2xx_regnode_class, &initdef);
|
|
if (regnode == NULL) {
|
|
device_printf(dev, "cannot create regulator\n");
|
|
return (NULL);
|
|
}
|
|
|
|
reg_sc = regnode_get_softc(regnode);
|
|
reg_sc->regnode = regnode;
|
|
reg_sc->base_dev = dev;
|
|
reg_sc->def = def;
|
|
reg_sc->xref = OF_xref_from_node(node);
|
|
reg_sc->param = regnode_get_stdparam(regnode);
|
|
|
|
regnode_register(regnode);
|
|
|
|
return (reg_sc);
|
|
}
|
|
|
|
static int
|
|
axp2xx_regdev_map(device_t dev, phandle_t xref, int ncells, pcell_t *cells,
|
|
intptr_t *num)
|
|
{
|
|
struct axp2xx_softc *sc;
|
|
int i;
|
|
|
|
sc = device_get_softc(dev);
|
|
for (i = 0; i < sc->nregs; i++) {
|
|
if (sc->regs[i] == NULL)
|
|
continue;
|
|
if (sc->regs[i]->xref == xref) {
|
|
*num = sc->regs[i]->def->id;
|
|
return (0);
|
|
}
|
|
}
|
|
|
|
return (ENXIO);
|
|
}
|
|
|
|
static void
|
|
axp2xx_start(void *pdev)
|
|
{
|
|
device_t dev;
|
|
struct axp2xx_softc *sc;
|
|
const char *pwr_name[] = {"Battery", "AC", "USB", "AC and USB"};
|
|
int i;
|
|
uint8_t reg, data;
|
|
uint8_t pwr_src;
|
|
|
|
dev = pdev;
|
|
|
|
sc = device_get_softc(dev);
|
|
sc->dev = dev;
|
|
|
|
if (bootverbose) {
|
|
/*
|
|
* Read the Power State register.
|
|
* Shift the AC presence into bit 0.
|
|
* Shift the Battery presence into bit 1.
|
|
*/
|
|
axp2xx_read(dev, AXP2XX_PSR, &data, 1);
|
|
pwr_src = ((data & AXP2XX_PSR_ACIN) >> AXP2XX_PSR_ACIN_SHIFT) |
|
|
((data & AXP2XX_PSR_VBUS) >> (AXP2XX_PSR_VBUS_SHIFT - 1));
|
|
|
|
device_printf(dev, "Powered by %s\n",
|
|
pwr_name[pwr_src]);
|
|
}
|
|
|
|
/* Only enable interrupts that we are interested in */
|
|
axp2xx_write(dev, AXP2XX_IRQ1_ENABLE,
|
|
AXP2XX_IRQ1_AC_OVERVOLT |
|
|
AXP2XX_IRQ1_AC_DISCONN |
|
|
AXP2XX_IRQ1_AC_CONN |
|
|
AXP2XX_IRQ1_VBUS_OVERVOLT |
|
|
AXP2XX_IRQ1_VBUS_DISCONN |
|
|
AXP2XX_IRQ1_VBUS_CONN);
|
|
axp2xx_write(dev, AXP2XX_IRQ2_ENABLE,
|
|
AXP2XX_IRQ2_BATT_CONN |
|
|
AXP2XX_IRQ2_BATT_DISCONN |
|
|
AXP2XX_IRQ2_BATT_CHARGE_ACCT_ON |
|
|
AXP2XX_IRQ2_BATT_CHARGE_ACCT_OFF |
|
|
AXP2XX_IRQ2_BATT_CHARGING |
|
|
AXP2XX_IRQ2_BATT_CHARGED |
|
|
AXP2XX_IRQ2_BATT_TEMP_OVER |
|
|
AXP2XX_IRQ2_BATT_TEMP_LOW);
|
|
axp2xx_write(dev, AXP2XX_IRQ3_ENABLE,
|
|
AXP2XX_IRQ3_PEK_SHORT | AXP2XX_IRQ3_PEK_LONG);
|
|
axp2xx_write(dev, AXP2XX_IRQ4_ENABLE, AXP2XX_IRQ4_APS_LOW_2);
|
|
axp2xx_write(dev, AXP2XX_IRQ5_ENABLE, 0x0);
|
|
|
|
EVENTHANDLER_REGISTER(shutdown_final, axp2xx_shutdown, dev,
|
|
SHUTDOWN_PRI_LAST);
|
|
|
|
/* Enable ADC sensors */
|
|
for (i = 0; i < sc->nsensors; i++) {
|
|
if (axp2xx_read(dev, sc->sensors[i].enable_reg, ®, 1) == -1) {
|
|
device_printf(dev, "Cannot enable sensor '%s'\n",
|
|
sc->sensors[i].name);
|
|
continue;
|
|
}
|
|
reg |= sc->sensors[i].enable_mask;
|
|
if (axp2xx_write(dev, sc->sensors[i].enable_reg, reg) == -1) {
|
|
device_printf(dev, "Cannot enable sensor '%s'\n",
|
|
sc->sensors[i].name);
|
|
continue;
|
|
}
|
|
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
|
|
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
|
|
OID_AUTO, sc->sensors[i].name,
|
|
CTLTYPE_INT | CTLFLAG_RD | CTLFLAG_NEEDGIANT,
|
|
dev, sc->sensors[i].id, axp2xx_sysctl,
|
|
sc->sensors[i].format,
|
|
sc->sensors[i].desc);
|
|
}
|
|
|
|
if ((bus_setup_intr(dev, sc->res[0], INTR_TYPE_MISC | INTR_MPSAFE,
|
|
NULL, axp2xx_intr, sc, &sc->intrcookie)))
|
|
device_printf(dev, "unable to register interrupt handler\n");
|
|
|
|
config_intrhook_disestablish(&sc->intr_hook);
|
|
}
|
|
|
|
static int
|
|
axp2xx_probe(device_t dev)
|
|
{
|
|
|
|
if (!ofw_bus_status_okay(dev))
|
|
return (ENXIO);
|
|
|
|
switch (ofw_bus_search_compatible(dev, compat_data)->ocd_data)
|
|
{
|
|
case AXP209:
|
|
device_set_desc(dev, "X-Powers AXP209 Power Management Unit");
|
|
break;
|
|
case AXP221:
|
|
device_set_desc(dev, "X-Powers AXP221 Power Management Unit");
|
|
break;
|
|
default:
|
|
return (ENXIO);
|
|
}
|
|
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
|
|
static int
|
|
axp2xx_attach(device_t dev)
|
|
{
|
|
struct axp2xx_softc *sc;
|
|
struct axp2xx_reg_sc *reg;
|
|
struct axp2xx_regdef *regdefs;
|
|
phandle_t rnode, child;
|
|
int i;
|
|
|
|
sc = device_get_softc(dev);
|
|
mtx_init(&sc->mtx, device_get_nameunit(dev), NULL, MTX_DEF);
|
|
|
|
if (bus_alloc_resources(dev, axp_res_spec, sc->res) != 0) {
|
|
device_printf(dev, "can't allocate device resources\n");
|
|
return (ENXIO);
|
|
}
|
|
|
|
sc->type = ofw_bus_search_compatible(dev, compat_data)->ocd_data;
|
|
switch (sc->type) {
|
|
case AXP209:
|
|
sc->pins = axp209_pins;
|
|
sc->npins = nitems(axp209_pins);
|
|
sc->gpiodev = gpiobus_attach_bus(dev);
|
|
|
|
sc->sensors = axp209_sensors;
|
|
sc->nsensors = nitems(axp209_sensors);
|
|
|
|
regdefs = axp209_regdefs;
|
|
sc->nregs = nitems(axp209_regdefs);
|
|
break;
|
|
case AXP221:
|
|
sc->pins = axp221_pins;
|
|
sc->npins = nitems(axp221_pins);
|
|
sc->gpiodev = gpiobus_attach_bus(dev);
|
|
|
|
sc->sensors = axp221_sensors;
|
|
sc->nsensors = nitems(axp221_sensors);
|
|
|
|
regdefs = axp221_regdefs;
|
|
sc->nregs = nitems(axp221_regdefs);
|
|
break;
|
|
}
|
|
|
|
sc->regs = malloc(sizeof(struct axp2xx_reg_sc *) * sc->nregs,
|
|
M_AXP2XX_REG, M_WAITOK | M_ZERO);
|
|
|
|
sc->intr_hook.ich_func = axp2xx_start;
|
|
sc->intr_hook.ich_arg = dev;
|
|
|
|
if (config_intrhook_establish(&sc->intr_hook) != 0)
|
|
return (ENOMEM);
|
|
|
|
/* Attach known regulators that exist in the DT */
|
|
rnode = ofw_bus_find_child(ofw_bus_get_node(dev), "regulators");
|
|
if (rnode > 0) {
|
|
for (i = 0; i < sc->nregs; i++) {
|
|
child = ofw_bus_find_child(rnode,
|
|
regdefs[i].name);
|
|
if (child == 0)
|
|
continue;
|
|
reg = axp2xx_reg_attach(dev, child, ®defs[i]);
|
|
if (reg == NULL) {
|
|
device_printf(dev,
|
|
"cannot attach regulator %s\n",
|
|
regdefs[i].name);
|
|
continue;
|
|
}
|
|
sc->regs[i] = reg;
|
|
if (bootverbose)
|
|
device_printf(dev, "Regulator %s attached\n",
|
|
regdefs[i].name);
|
|
}
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t axp2xx_methods[] = {
|
|
DEVMETHOD(device_probe, axp2xx_probe),
|
|
DEVMETHOD(device_attach, axp2xx_attach),
|
|
|
|
/* GPIO interface */
|
|
DEVMETHOD(gpio_get_bus, axp2xx_gpio_get_bus),
|
|
DEVMETHOD(gpio_pin_max, axp2xx_gpio_pin_max),
|
|
DEVMETHOD(gpio_pin_getname, axp2xx_gpio_pin_getname),
|
|
DEVMETHOD(gpio_pin_getcaps, axp2xx_gpio_pin_getcaps),
|
|
DEVMETHOD(gpio_pin_getflags, axp2xx_gpio_pin_getflags),
|
|
DEVMETHOD(gpio_pin_setflags, axp2xx_gpio_pin_setflags),
|
|
DEVMETHOD(gpio_pin_get, axp2xx_gpio_pin_get),
|
|
DEVMETHOD(gpio_pin_set, axp2xx_gpio_pin_set),
|
|
DEVMETHOD(gpio_pin_toggle, axp2xx_gpio_pin_toggle),
|
|
DEVMETHOD(gpio_map_gpios, axp2xx_gpio_map_gpios),
|
|
|
|
/* Regdev interface */
|
|
DEVMETHOD(regdev_map, axp2xx_regdev_map),
|
|
|
|
/* OFW bus interface */
|
|
DEVMETHOD(ofw_bus_get_node, axp2xx_get_node),
|
|
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
static driver_t axp2xx_driver = {
|
|
"axp2xx_pmu",
|
|
axp2xx_methods,
|
|
sizeof(struct axp2xx_softc),
|
|
};
|
|
|
|
extern driver_t ofw_gpiobus_driver, gpioc_driver;
|
|
|
|
EARLY_DRIVER_MODULE(axp2xx, iicbus, axp2xx_driver, 0, 0,
|
|
BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LATE);
|
|
EARLY_DRIVER_MODULE(ofw_gpiobus, axp2xx_pmu, ofw_gpiobus_driver, 0, 0,
|
|
BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LATE);
|
|
DRIVER_MODULE(gpioc, axp2xx_pmu, gpioc_driver, 0, 0);
|
|
MODULE_VERSION(axp2xx, 1);
|
|
MODULE_DEPEND(axp2xx, iicbus, IICBUS_MINVER, IICBUS_PREFVER, IICBUS_MAXVER);
|