1660 lines
40 KiB
C
1660 lines
40 KiB
C
/*-
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* Copyright (c) 2018 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 ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* 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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/*
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* X-Powers AXP803/813/818 PMU for Allwinner SoCs
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*/
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#include <sys/cdefs.h>
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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/bus.h>
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#include <sys/rman.h>
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#include <sys/kernel.h>
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#include <sys/reboot.h>
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#include <sys/gpio.h>
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#include <sys/module.h>
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#include <machine/bus.h>
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#include <dev/iicbus/iicbus.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 "gpio_if.h"
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#include "iicbus_if.h"
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#include "regdev_if.h"
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MALLOC_DEFINE(M_AXP8XX_REG, "AXP8xx regulator", "AXP8xx power regulator");
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#define AXP_POWERSRC 0x00
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#define AXP_POWERSRC_ACIN (1 << 7)
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#define AXP_POWERSRC_VBUS (1 << 5)
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#define AXP_POWERSRC_VBAT (1 << 3)
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#define AXP_POWERSRC_CHARING (1 << 2) /* Charging Direction */
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#define AXP_POWERSRC_SHORTED (1 << 1)
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#define AXP_POWERSRC_STARTUP (1 << 0)
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#define AXP_POWERMODE 0x01
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#define AXP_POWERMODE_BAT_CHARGING (1 << 6)
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#define AXP_POWERMODE_BAT_PRESENT (1 << 5)
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#define AXP_POWERMODE_BAT_VALID (1 << 4)
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#define AXP_ICTYPE 0x03
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#define AXP_POWERCTL1 0x10
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#define AXP_POWERCTL1_DCDC7 (1 << 6) /* AXP813/818 only */
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#define AXP_POWERCTL1_DCDC6 (1 << 5)
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#define AXP_POWERCTL1_DCDC5 (1 << 4)
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#define AXP_POWERCTL1_DCDC4 (1 << 3)
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#define AXP_POWERCTL1_DCDC3 (1 << 2)
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#define AXP_POWERCTL1_DCDC2 (1 << 1)
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#define AXP_POWERCTL1_DCDC1 (1 << 0)
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#define AXP_POWERCTL2 0x12
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#define AXP_POWERCTL2_DC1SW (1 << 7) /* AXP803 only */
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#define AXP_POWERCTL2_DLDO4 (1 << 6)
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#define AXP_POWERCTL2_DLDO3 (1 << 5)
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#define AXP_POWERCTL2_DLDO2 (1 << 4)
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#define AXP_POWERCTL2_DLDO1 (1 << 3)
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#define AXP_POWERCTL2_ELDO3 (1 << 2)
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#define AXP_POWERCTL2_ELDO2 (1 << 1)
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#define AXP_POWERCTL2_ELDO1 (1 << 0)
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#define AXP_POWERCTL3 0x13
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#define AXP_POWERCTL3_ALDO3 (1 << 7)
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#define AXP_POWERCTL3_ALDO2 (1 << 6)
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#define AXP_POWERCTL3_ALDO1 (1 << 5)
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#define AXP_POWERCTL3_FLDO3 (1 << 4) /* AXP813/818 only */
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#define AXP_POWERCTL3_FLDO2 (1 << 3)
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#define AXP_POWERCTL3_FLDO1 (1 << 2)
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#define AXP_VOLTCTL_DLDO1 0x15
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#define AXP_VOLTCTL_DLDO2 0x16
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#define AXP_VOLTCTL_DLDO3 0x17
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#define AXP_VOLTCTL_DLDO4 0x18
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#define AXP_VOLTCTL_ELDO1 0x19
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#define AXP_VOLTCTL_ELDO2 0x1A
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#define AXP_VOLTCTL_ELDO3 0x1B
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#define AXP_VOLTCTL_FLDO1 0x1C
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#define AXP_VOLTCTL_FLDO2 0x1D
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#define AXP_VOLTCTL_DCDC1 0x20
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#define AXP_VOLTCTL_DCDC2 0x21
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#define AXP_VOLTCTL_DCDC3 0x22
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#define AXP_VOLTCTL_DCDC4 0x23
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#define AXP_VOLTCTL_DCDC5 0x24
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#define AXP_VOLTCTL_DCDC6 0x25
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#define AXP_VOLTCTL_DCDC7 0x26
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#define AXP_VOLTCTL_ALDO1 0x28
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#define AXP_VOLTCTL_ALDO2 0x29
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#define AXP_VOLTCTL_ALDO3 0x2A
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#define AXP_VOLTCTL_STATUS (1 << 7)
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#define AXP_VOLTCTL_MASK 0x7f
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#define AXP_POWERBAT 0x32
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#define AXP_POWERBAT_SHUTDOWN (1 << 7)
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#define AXP_CHARGERCTL1 0x33
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#define AXP_CHARGERCTL1_MIN 0
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#define AXP_CHARGERCTL1_MAX 13
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#define AXP_CHARGERCTL1_CMASK 0xf
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#define AXP_IRQEN1 0x40
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#define AXP_IRQEN1_ACIN_HI (1 << 6)
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#define AXP_IRQEN1_ACIN_LO (1 << 5)
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#define AXP_IRQEN1_VBUS_HI (1 << 3)
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#define AXP_IRQEN1_VBUS_LO (1 << 2)
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#define AXP_IRQEN2 0x41
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#define AXP_IRQEN2_BAT_IN (1 << 7)
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#define AXP_IRQEN2_BAT_NO (1 << 6)
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#define AXP_IRQEN2_BATCHGC (1 << 3)
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#define AXP_IRQEN2_BATCHGD (1 << 2)
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#define AXP_IRQEN3 0x42
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#define AXP_IRQEN4 0x43
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#define AXP_IRQEN4_BATLVL_LO1 (1 << 1)
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#define AXP_IRQEN4_BATLVL_LO0 (1 << 0)
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#define AXP_IRQEN5 0x44
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#define AXP_IRQEN5_POKSIRQ (1 << 4)
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#define AXP_IRQEN5_POKLIRQ (1 << 3)
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#define AXP_IRQEN6 0x45
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#define AXP_IRQSTAT1 0x48
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#define AXP_IRQSTAT1_ACIN_HI (1 << 6)
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#define AXP_IRQSTAT1_ACIN_LO (1 << 5)
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#define AXP_IRQSTAT1_VBUS_HI (1 << 3)
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#define AXP_IRQSTAT1_VBUS_LO (1 << 2)
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#define AXP_IRQSTAT2 0x49
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#define AXP_IRQSTAT2_BAT_IN (1 << 7)
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#define AXP_IRQSTAT2_BAT_NO (1 << 6)
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#define AXP_IRQSTAT2_BATCHGC (1 << 3)
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#define AXP_IRQSTAT2_BATCHGD (1 << 2)
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#define AXP_IRQSTAT3 0x4a
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#define AXP_IRQSTAT4 0x4b
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#define AXP_IRQSTAT4_BATLVL_LO1 (1 << 1)
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#define AXP_IRQSTAT4_BATLVL_LO0 (1 << 0)
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#define AXP_IRQSTAT5 0x4c
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#define AXP_IRQSTAT5_POKSIRQ (1 << 4)
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#define AXP_IRQEN5_POKLIRQ (1 << 3)
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#define AXP_IRQSTAT6 0x4d
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#define AXP_BATSENSE_HI 0x78
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#define AXP_BATSENSE_LO 0x79
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#define AXP_BATCHG_HI 0x7a
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#define AXP_BATCHG_LO 0x7b
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#define AXP_BATDISCHG_HI 0x7c
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#define AXP_BATDISCHG_LO 0x7d
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#define AXP_GPIO0_CTRL 0x90
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#define AXP_GPIO0LDO_CTRL 0x91
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#define AXP_GPIO1_CTRL 0x92
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#define AXP_GPIO1LDO_CTRL 0x93
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#define AXP_GPIO_FUNC (0x7 << 0)
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#define AXP_GPIO_FUNC_SHIFT 0
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#define AXP_GPIO_FUNC_DRVLO 0
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#define AXP_GPIO_FUNC_DRVHI 1
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#define AXP_GPIO_FUNC_INPUT 2
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#define AXP_GPIO_FUNC_LDO_ON 3
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#define AXP_GPIO_FUNC_LDO_OFF 4
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#define AXP_GPIO_SIGBIT 0x94
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#define AXP_GPIO_PD 0x97
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#define AXP_FUEL_GAUGECTL 0xb8
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#define AXP_FUEL_GAUGECTL_EN (1 << 7)
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#define AXP_BAT_CAP 0xb9
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#define AXP_BAT_CAP_VALID (1 << 7)
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#define AXP_BAT_CAP_PERCENT 0x7f
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#define AXP_BAT_MAX_CAP_HI 0xe0
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#define AXP_BAT_MAX_CAP_VALID (1 << 7)
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#define AXP_BAT_MAX_CAP_LO 0xe1
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#define AXP_BAT_COULOMB_HI 0xe2
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#define AXP_BAT_COULOMB_VALID (1 << 7)
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#define AXP_BAT_COULOMB_LO 0xe3
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#define AXP_BAT_CAP_WARN 0xe6
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#define AXP_BAT_CAP_WARN_LV1 0xf0 /* Bits 4, 5, 6, 7 */
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#define AXP_BAP_CAP_WARN_LV1BASE 5 /* 5-20%, 1% per step */
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#define AXP_BAT_CAP_WARN_LV2 0xf /* Bits 0, 1, 2, 3 */
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/* Sensor conversion macros */
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#define AXP_SENSOR_BAT_H(hi) ((hi) << 4)
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#define AXP_SENSOR_BAT_L(lo) ((lo) & 0xf)
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#define AXP_SENSOR_COULOMB(hi, lo) (((hi & ~(1 << 7)) << 8) | (lo))
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static const struct {
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const char *name;
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uint8_t ctrl_reg;
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} axp8xx_pins[] = {
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{ "GPIO0", AXP_GPIO0_CTRL },
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{ "GPIO1", AXP_GPIO1_CTRL },
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};
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enum AXP8XX_TYPE {
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AXP803 = 1,
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AXP813,
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};
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static struct ofw_compat_data compat_data[] = {
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{ "x-powers,axp803", AXP803 },
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{ "x-powers,axp813", AXP813 },
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{ "x-powers,axp818", AXP813 },
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{ NULL, 0 }
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};
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static struct resource_spec axp8xx_spec[] = {
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{ SYS_RES_IRQ, 0, RF_ACTIVE },
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{ -1, 0 }
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};
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struct axp8xx_regdef {
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intptr_t id;
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char *name;
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char *supply_name;
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uint8_t enable_reg;
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uint8_t enable_mask;
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uint8_t enable_value;
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uint8_t disable_value;
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uint8_t voltage_reg;
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int voltage_min;
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int voltage_max;
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int voltage_step1;
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int voltage_nstep1;
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int voltage_step2;
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int voltage_nstep2;
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};
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enum axp8xx_reg_id {
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AXP8XX_REG_ID_DCDC1 = 100,
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AXP8XX_REG_ID_DCDC2,
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AXP8XX_REG_ID_DCDC3,
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AXP8XX_REG_ID_DCDC4,
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AXP8XX_REG_ID_DCDC5,
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AXP8XX_REG_ID_DCDC6,
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AXP813_REG_ID_DCDC7,
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AXP803_REG_ID_DC1SW,
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AXP8XX_REG_ID_DLDO1,
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AXP8XX_REG_ID_DLDO2,
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AXP8XX_REG_ID_DLDO3,
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AXP8XX_REG_ID_DLDO4,
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AXP8XX_REG_ID_ELDO1,
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AXP8XX_REG_ID_ELDO2,
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AXP8XX_REG_ID_ELDO3,
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AXP8XX_REG_ID_ALDO1,
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AXP8XX_REG_ID_ALDO2,
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AXP8XX_REG_ID_ALDO3,
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AXP8XX_REG_ID_FLDO1,
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AXP8XX_REG_ID_FLDO2,
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AXP813_REG_ID_FLDO3,
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AXP8XX_REG_ID_GPIO0_LDO,
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AXP8XX_REG_ID_GPIO1_LDO,
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};
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static struct axp8xx_regdef axp803_regdefs[] = {
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{
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.id = AXP803_REG_ID_DC1SW,
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.name = "dc1sw",
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.enable_reg = AXP_POWERCTL2,
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.enable_mask = (uint8_t) AXP_POWERCTL2_DC1SW,
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.enable_value = AXP_POWERCTL2_DC1SW,
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},
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};
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static struct axp8xx_regdef axp813_regdefs[] = {
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{
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.id = AXP813_REG_ID_DCDC7,
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.name = "dcdc7",
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.enable_reg = AXP_POWERCTL1,
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.enable_mask = (uint8_t) AXP_POWERCTL1_DCDC7,
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.enable_value = AXP_POWERCTL1_DCDC7,
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.voltage_reg = AXP_VOLTCTL_DCDC7,
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.voltage_min = 600,
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.voltage_max = 1520,
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.voltage_step1 = 10,
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.voltage_nstep1 = 50,
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.voltage_step2 = 20,
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.voltage_nstep2 = 21,
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},
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};
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static struct axp8xx_regdef axp8xx_common_regdefs[] = {
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{
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.id = AXP8XX_REG_ID_DCDC1,
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.name = "dcdc1",
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.enable_reg = AXP_POWERCTL1,
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.enable_mask = (uint8_t) AXP_POWERCTL1_DCDC1,
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.enable_value = AXP_POWERCTL1_DCDC1,
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.voltage_reg = AXP_VOLTCTL_DCDC1,
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.voltage_min = 1600,
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.voltage_max = 3400,
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.voltage_step1 = 100,
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.voltage_nstep1 = 18,
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},
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{
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.id = AXP8XX_REG_ID_DCDC2,
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.name = "dcdc2",
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.enable_reg = AXP_POWERCTL1,
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.enable_mask = (uint8_t) AXP_POWERCTL1_DCDC2,
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.enable_value = AXP_POWERCTL1_DCDC2,
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.voltage_reg = AXP_VOLTCTL_DCDC2,
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.voltage_min = 500,
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.voltage_max = 1300,
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.voltage_step1 = 10,
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.voltage_nstep1 = 70,
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.voltage_step2 = 20,
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.voltage_nstep2 = 5,
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},
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{
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.id = AXP8XX_REG_ID_DCDC3,
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.name = "dcdc3",
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.enable_reg = AXP_POWERCTL1,
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.enable_mask = (uint8_t) AXP_POWERCTL1_DCDC3,
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.enable_value = AXP_POWERCTL1_DCDC3,
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.voltage_reg = AXP_VOLTCTL_DCDC3,
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.voltage_min = 500,
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.voltage_max = 1300,
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.voltage_step1 = 10,
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.voltage_nstep1 = 70,
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.voltage_step2 = 20,
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.voltage_nstep2 = 5,
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},
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{
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.id = AXP8XX_REG_ID_DCDC4,
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.name = "dcdc4",
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.enable_reg = AXP_POWERCTL1,
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.enable_mask = (uint8_t) AXP_POWERCTL1_DCDC4,
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.enable_value = AXP_POWERCTL1_DCDC4,
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.voltage_reg = AXP_VOLTCTL_DCDC4,
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.voltage_min = 500,
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.voltage_max = 1300,
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.voltage_step1 = 10,
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.voltage_nstep1 = 70,
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.voltage_step2 = 20,
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.voltage_nstep2 = 5,
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},
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{
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.id = AXP8XX_REG_ID_DCDC5,
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.name = "dcdc5",
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.enable_reg = AXP_POWERCTL1,
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.enable_mask = (uint8_t) AXP_POWERCTL1_DCDC5,
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.enable_value = AXP_POWERCTL1_DCDC5,
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.voltage_reg = AXP_VOLTCTL_DCDC5,
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.voltage_min = 800,
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.voltage_max = 1840,
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.voltage_step1 = 10,
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.voltage_nstep1 = 42,
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.voltage_step2 = 20,
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.voltage_nstep2 = 36,
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},
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{
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.id = AXP8XX_REG_ID_DCDC6,
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.name = "dcdc6",
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.enable_reg = AXP_POWERCTL1,
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.enable_mask = (uint8_t) AXP_POWERCTL1_DCDC6,
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.enable_value = AXP_POWERCTL1_DCDC6,
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.voltage_reg = AXP_VOLTCTL_DCDC6,
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.voltage_min = 600,
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.voltage_max = 1520,
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.voltage_step1 = 10,
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.voltage_nstep1 = 50,
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.voltage_step2 = 20,
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.voltage_nstep2 = 21,
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},
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{
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.id = AXP8XX_REG_ID_DLDO1,
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.name = "dldo1",
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.enable_reg = AXP_POWERCTL2,
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.enable_mask = (uint8_t) AXP_POWERCTL2_DLDO1,
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.enable_value = AXP_POWERCTL2_DLDO1,
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.voltage_reg = AXP_VOLTCTL_DLDO1,
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.voltage_min = 700,
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.voltage_max = 3300,
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.voltage_step1 = 100,
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.voltage_nstep1 = 26,
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},
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{
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.id = AXP8XX_REG_ID_DLDO2,
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.name = "dldo2",
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.enable_reg = AXP_POWERCTL2,
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.enable_mask = (uint8_t) AXP_POWERCTL2_DLDO2,
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.enable_value = AXP_POWERCTL2_DLDO2,
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.voltage_reg = AXP_VOLTCTL_DLDO2,
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.voltage_min = 700,
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.voltage_max = 4200,
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.voltage_step1 = 100,
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.voltage_nstep1 = 27,
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.voltage_step2 = 200,
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.voltage_nstep2 = 4,
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},
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{
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.id = AXP8XX_REG_ID_DLDO3,
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.name = "dldo3",
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.enable_reg = AXP_POWERCTL2,
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.enable_mask = (uint8_t) AXP_POWERCTL2_DLDO3,
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.enable_value = AXP_POWERCTL2_DLDO3,
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.voltage_reg = AXP_VOLTCTL_DLDO3,
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.voltage_min = 700,
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.voltage_max = 3300,
|
|
.voltage_step1 = 100,
|
|
.voltage_nstep1 = 26,
|
|
},
|
|
{
|
|
.id = AXP8XX_REG_ID_DLDO4,
|
|
.name = "dldo4",
|
|
.enable_reg = AXP_POWERCTL2,
|
|
.enable_mask = (uint8_t) AXP_POWERCTL2_DLDO4,
|
|
.enable_value = AXP_POWERCTL2_DLDO4,
|
|
.voltage_reg = AXP_VOLTCTL_DLDO4,
|
|
.voltage_min = 700,
|
|
.voltage_max = 3300,
|
|
.voltage_step1 = 100,
|
|
.voltage_nstep1 = 26,
|
|
},
|
|
{
|
|
.id = AXP8XX_REG_ID_ALDO1,
|
|
.name = "aldo1",
|
|
.enable_reg = AXP_POWERCTL3,
|
|
.enable_mask = (uint8_t) AXP_POWERCTL3_ALDO1,
|
|
.enable_value = AXP_POWERCTL3_ALDO1,
|
|
.voltage_reg = AXP_VOLTCTL_ALDO1,
|
|
.voltage_min = 700,
|
|
.voltage_max = 3300,
|
|
.voltage_step1 = 100,
|
|
.voltage_nstep1 = 26,
|
|
},
|
|
{
|
|
.id = AXP8XX_REG_ID_ALDO2,
|
|
.name = "aldo2",
|
|
.enable_reg = AXP_POWERCTL3,
|
|
.enable_mask = (uint8_t) AXP_POWERCTL3_ALDO2,
|
|
.enable_value = AXP_POWERCTL3_ALDO2,
|
|
.voltage_reg = AXP_VOLTCTL_ALDO2,
|
|
.voltage_min = 700,
|
|
.voltage_max = 3300,
|
|
.voltage_step1 = 100,
|
|
.voltage_nstep1 = 26,
|
|
},
|
|
{
|
|
.id = AXP8XX_REG_ID_ALDO3,
|
|
.name = "aldo3",
|
|
.enable_reg = AXP_POWERCTL3,
|
|
.enable_mask = (uint8_t) AXP_POWERCTL3_ALDO3,
|
|
.enable_value = AXP_POWERCTL3_ALDO3,
|
|
.voltage_reg = AXP_VOLTCTL_ALDO3,
|
|
.voltage_min = 700,
|
|
.voltage_max = 3300,
|
|
.voltage_step1 = 100,
|
|
.voltage_nstep1 = 26,
|
|
},
|
|
{
|
|
.id = AXP8XX_REG_ID_ELDO1,
|
|
.name = "eldo1",
|
|
.enable_reg = AXP_POWERCTL2,
|
|
.enable_mask = (uint8_t) AXP_POWERCTL2_ELDO1,
|
|
.enable_value = AXP_POWERCTL2_ELDO1,
|
|
.voltage_reg = AXP_VOLTCTL_ELDO1,
|
|
.voltage_min = 700,
|
|
.voltage_max = 1900,
|
|
.voltage_step1 = 50,
|
|
.voltage_nstep1 = 24,
|
|
},
|
|
{
|
|
.id = AXP8XX_REG_ID_ELDO2,
|
|
.name = "eldo2",
|
|
.enable_reg = AXP_POWERCTL2,
|
|
.enable_mask = (uint8_t) AXP_POWERCTL2_ELDO2,
|
|
.enable_value = AXP_POWERCTL2_ELDO2,
|
|
.voltage_reg = AXP_VOLTCTL_ELDO2,
|
|
.voltage_min = 700,
|
|
.voltage_max = 1900,
|
|
.voltage_step1 = 50,
|
|
.voltage_nstep1 = 24,
|
|
},
|
|
{
|
|
.id = AXP8XX_REG_ID_ELDO3,
|
|
.name = "eldo3",
|
|
.enable_reg = AXP_POWERCTL2,
|
|
.enable_mask = (uint8_t) AXP_POWERCTL2_ELDO3,
|
|
.enable_value = AXP_POWERCTL2_ELDO3,
|
|
.voltage_reg = AXP_VOLTCTL_ELDO3,
|
|
.voltage_min = 700,
|
|
.voltage_max = 1900,
|
|
.voltage_step1 = 50,
|
|
.voltage_nstep1 = 24,
|
|
},
|
|
{
|
|
.id = AXP8XX_REG_ID_FLDO1,
|
|
.name = "fldo1",
|
|
.enable_reg = AXP_POWERCTL3,
|
|
.enable_mask = (uint8_t) AXP_POWERCTL3_FLDO1,
|
|
.enable_value = AXP_POWERCTL3_FLDO1,
|
|
.voltage_reg = AXP_VOLTCTL_FLDO1,
|
|
.voltage_min = 700,
|
|
.voltage_max = 1450,
|
|
.voltage_step1 = 50,
|
|
.voltage_nstep1 = 15,
|
|
},
|
|
{
|
|
.id = AXP8XX_REG_ID_FLDO2,
|
|
.name = "fldo2",
|
|
.enable_reg = AXP_POWERCTL3,
|
|
.enable_mask = (uint8_t) AXP_POWERCTL3_FLDO2,
|
|
.enable_value = AXP_POWERCTL3_FLDO2,
|
|
.voltage_reg = AXP_VOLTCTL_FLDO2,
|
|
.voltage_min = 700,
|
|
.voltage_max = 1450,
|
|
.voltage_step1 = 50,
|
|
.voltage_nstep1 = 15,
|
|
},
|
|
{
|
|
.id = AXP8XX_REG_ID_GPIO0_LDO,
|
|
.name = "ldo-io0",
|
|
.enable_reg = AXP_GPIO0_CTRL,
|
|
.enable_mask = (uint8_t) AXP_GPIO_FUNC,
|
|
.enable_value = AXP_GPIO_FUNC_LDO_ON,
|
|
.disable_value = AXP_GPIO_FUNC_LDO_OFF,
|
|
.voltage_reg = AXP_GPIO0LDO_CTRL,
|
|
.voltage_min = 700,
|
|
.voltage_max = 3300,
|
|
.voltage_step1 = 100,
|
|
.voltage_nstep1 = 26,
|
|
},
|
|
{
|
|
.id = AXP8XX_REG_ID_GPIO1_LDO,
|
|
.name = "ldo-io1",
|
|
.enable_reg = AXP_GPIO1_CTRL,
|
|
.enable_mask = (uint8_t) AXP_GPIO_FUNC,
|
|
.enable_value = AXP_GPIO_FUNC_LDO_ON,
|
|
.disable_value = AXP_GPIO_FUNC_LDO_OFF,
|
|
.voltage_reg = AXP_GPIO1LDO_CTRL,
|
|
.voltage_min = 700,
|
|
.voltage_max = 3300,
|
|
.voltage_step1 = 100,
|
|
.voltage_nstep1 = 26,
|
|
},
|
|
};
|
|
|
|
enum axp8xx_sensor {
|
|
AXP_SENSOR_ACIN_PRESENT,
|
|
AXP_SENSOR_VBUS_PRESENT,
|
|
AXP_SENSOR_BATT_PRESENT,
|
|
AXP_SENSOR_BATT_CHARGING,
|
|
AXP_SENSOR_BATT_CHARGE_STATE,
|
|
AXP_SENSOR_BATT_VOLTAGE,
|
|
AXP_SENSOR_BATT_CHARGE_CURRENT,
|
|
AXP_SENSOR_BATT_DISCHARGE_CURRENT,
|
|
AXP_SENSOR_BATT_CAPACITY_PERCENT,
|
|
AXP_SENSOR_BATT_MAXIMUM_CAPACITY,
|
|
AXP_SENSOR_BATT_CURRENT_CAPACITY,
|
|
};
|
|
|
|
enum battery_capacity_state {
|
|
BATT_CAPACITY_NORMAL = 1, /* normal cap in battery */
|
|
BATT_CAPACITY_WARNING, /* warning cap in battery */
|
|
BATT_CAPACITY_CRITICAL, /* critical cap in battery */
|
|
BATT_CAPACITY_HIGH, /* high cap in battery */
|
|
BATT_CAPACITY_MAX, /* maximum cap in battery */
|
|
BATT_CAPACITY_LOW /* low cap in battery */
|
|
};
|
|
|
|
struct axp8xx_sensors {
|
|
int id;
|
|
const char *name;
|
|
const char *desc;
|
|
const char *format;
|
|
};
|
|
|
|
static const struct axp8xx_sensors axp8xx_common_sensors[] = {
|
|
{
|
|
.id = AXP_SENSOR_ACIN_PRESENT,
|
|
.name = "acin",
|
|
.format = "I",
|
|
.desc = "ACIN Present",
|
|
},
|
|
{
|
|
.id = AXP_SENSOR_VBUS_PRESENT,
|
|
.name = "vbus",
|
|
.format = "I",
|
|
.desc = "VBUS Present",
|
|
},
|
|
{
|
|
.id = AXP_SENSOR_BATT_PRESENT,
|
|
.name = "bat",
|
|
.format = "I",
|
|
.desc = "Battery Present",
|
|
},
|
|
{
|
|
.id = AXP_SENSOR_BATT_CHARGING,
|
|
.name = "batcharging",
|
|
.format = "I",
|
|
.desc = "Battery Charging",
|
|
},
|
|
{
|
|
.id = AXP_SENSOR_BATT_CHARGE_STATE,
|
|
.name = "batchargestate",
|
|
.format = "I",
|
|
.desc = "Battery Charge State",
|
|
},
|
|
{
|
|
.id = AXP_SENSOR_BATT_VOLTAGE,
|
|
.name = "batvolt",
|
|
.format = "I",
|
|
.desc = "Battery Voltage",
|
|
},
|
|
{
|
|
.id = AXP_SENSOR_BATT_CHARGE_CURRENT,
|
|
.name = "batchargecurrent",
|
|
.format = "I",
|
|
.desc = "Average Battery Charging Current",
|
|
},
|
|
{
|
|
.id = AXP_SENSOR_BATT_DISCHARGE_CURRENT,
|
|
.name = "batdischargecurrent",
|
|
.format = "I",
|
|
.desc = "Average Battery Discharging Current",
|
|
},
|
|
{
|
|
.id = AXP_SENSOR_BATT_CAPACITY_PERCENT,
|
|
.name = "batcapacitypercent",
|
|
.format = "I",
|
|
.desc = "Battery Capacity Percentage",
|
|
},
|
|
{
|
|
.id = AXP_SENSOR_BATT_MAXIMUM_CAPACITY,
|
|
.name = "batmaxcapacity",
|
|
.format = "I",
|
|
.desc = "Battery Maximum Capacity",
|
|
},
|
|
{
|
|
.id = AXP_SENSOR_BATT_CURRENT_CAPACITY,
|
|
.name = "batcurrentcapacity",
|
|
.format = "I",
|
|
.desc = "Battery Current Capacity",
|
|
},
|
|
};
|
|
|
|
struct axp8xx_config {
|
|
const char *name;
|
|
int batsense_step; /* uV */
|
|
int charge_step; /* uA */
|
|
int discharge_step; /* uA */
|
|
int maxcap_step; /* uAh */
|
|
int coulomb_step; /* uAh */
|
|
};
|
|
|
|
static struct axp8xx_config axp803_config = {
|
|
.name = "AXP803",
|
|
.batsense_step = 1100,
|
|
.charge_step = 1000,
|
|
.discharge_step = 1000,
|
|
.maxcap_step = 1456,
|
|
.coulomb_step = 1456,
|
|
};
|
|
|
|
struct axp8xx_softc;
|
|
|
|
struct axp8xx_reg_sc {
|
|
struct regnode *regnode;
|
|
device_t base_dev;
|
|
struct axp8xx_regdef *def;
|
|
phandle_t xref;
|
|
struct regnode_std_param *param;
|
|
};
|
|
|
|
struct axp8xx_softc {
|
|
struct resource *res;
|
|
uint16_t addr;
|
|
void *ih;
|
|
device_t gpiodev;
|
|
struct mtx mtx;
|
|
int busy;
|
|
|
|
int type;
|
|
|
|
/* Configs */
|
|
const struct axp8xx_config *config;
|
|
|
|
/* Sensors */
|
|
const struct axp8xx_sensors *sensors;
|
|
int nsensors;
|
|
|
|
/* Regulators */
|
|
struct axp8xx_reg_sc **regs;
|
|
int nregs;
|
|
|
|
/* Warning, shutdown thresholds */
|
|
int warn_thres;
|
|
int shut_thres;
|
|
};
|
|
|
|
#define AXP_LOCK(sc) mtx_lock(&(sc)->mtx)
|
|
#define AXP_UNLOCK(sc) mtx_unlock(&(sc)->mtx)
|
|
static int axp8xx_regnode_set_voltage(struct regnode *regnode, int min_uvolt,
|
|
int max_uvolt, int *udelay);
|
|
|
|
static int
|
|
axp8xx_read(device_t dev, uint8_t reg, uint8_t *data, uint8_t size)
|
|
{
|
|
struct axp8xx_softc *sc;
|
|
struct iic_msg msg[2];
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
msg[0].slave = sc->addr;
|
|
msg[0].flags = IIC_M_WR;
|
|
msg[0].len = 1;
|
|
msg[0].buf = ®
|
|
|
|
msg[1].slave = sc->addr;
|
|
msg[1].flags = IIC_M_RD;
|
|
msg[1].len = size;
|
|
msg[1].buf = data;
|
|
|
|
return (iicbus_transfer(dev, msg, 2));
|
|
}
|
|
|
|
static int
|
|
axp8xx_write(device_t dev, uint8_t reg, uint8_t val)
|
|
{
|
|
struct axp8xx_softc *sc;
|
|
struct iic_msg msg[2];
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
msg[0].slave = sc->addr;
|
|
msg[0].flags = IIC_M_WR;
|
|
msg[0].len = 1;
|
|
msg[0].buf = ®
|
|
|
|
msg[1].slave = sc->addr;
|
|
msg[1].flags = IIC_M_WR;
|
|
msg[1].len = 1;
|
|
msg[1].buf = &val;
|
|
|
|
return (iicbus_transfer(dev, msg, 2));
|
|
}
|
|
|
|
static int
|
|
axp8xx_regnode_init(struct regnode *regnode)
|
|
{
|
|
struct regnode_std_param *param;
|
|
int rv, udelay;
|
|
|
|
param = regnode_get_stdparam(regnode);
|
|
if (param->min_uvolt == 0)
|
|
return (0);
|
|
|
|
/*
|
|
* Set the regulator at the correct voltage
|
|
* Do not enable it, this is will be done either by a
|
|
* consumer or by regnode_set_constraint if boot_on is true
|
|
*/
|
|
rv = axp8xx_regnode_set_voltage(regnode, param->min_uvolt,
|
|
param->max_uvolt, &udelay);
|
|
if (rv != 0)
|
|
DELAY(udelay);
|
|
|
|
return (rv);
|
|
}
|
|
|
|
static int
|
|
axp8xx_regnode_enable(struct regnode *regnode, bool enable, int *udelay)
|
|
{
|
|
struct axp8xx_reg_sc *sc;
|
|
uint8_t val;
|
|
|
|
sc = regnode_get_softc(regnode);
|
|
|
|
if (bootverbose)
|
|
device_printf(sc->base_dev, "%sable %s (%s)\n",
|
|
enable ? "En" : "Dis",
|
|
regnode_get_name(regnode),
|
|
sc->def->name);
|
|
|
|
axp8xx_read(sc->base_dev, sc->def->enable_reg, &val, 1);
|
|
val &= ~sc->def->enable_mask;
|
|
if (enable)
|
|
val |= sc->def->enable_value;
|
|
else {
|
|
if (sc->def->disable_value)
|
|
val |= sc->def->disable_value;
|
|
else
|
|
val &= ~sc->def->enable_value;
|
|
}
|
|
axp8xx_write(sc->base_dev, sc->def->enable_reg, val);
|
|
|
|
*udelay = 0;
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
axp8xx_regnode_reg_to_voltage(struct axp8xx_reg_sc *sc, uint8_t val, int *uv)
|
|
{
|
|
if (val < sc->def->voltage_nstep1)
|
|
*uv = sc->def->voltage_min + val * sc->def->voltage_step1;
|
|
else
|
|
*uv = sc->def->voltage_min +
|
|
(sc->def->voltage_nstep1 * sc->def->voltage_step1) +
|
|
((val - sc->def->voltage_nstep1) * sc->def->voltage_step2);
|
|
*uv *= 1000;
|
|
}
|
|
|
|
static int
|
|
axp8xx_regnode_voltage_to_reg(struct axp8xx_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_nstep1 && uvolt < min_uvolt;
|
|
nstep++) {
|
|
++nval;
|
|
uvolt += (sc->def->voltage_step1 * 1000);
|
|
}
|
|
for (nstep = 0; nstep < sc->def->voltage_nstep2 && uvolt < min_uvolt;
|
|
nstep++) {
|
|
++nval;
|
|
uvolt += (sc->def->voltage_step2 * 1000);
|
|
}
|
|
if (uvolt > max_uvolt)
|
|
return (EINVAL);
|
|
|
|
*val = nval;
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
axp8xx_regnode_status(struct regnode *regnode, int *status)
|
|
{
|
|
struct axp8xx_reg_sc *sc;
|
|
uint8_t val;
|
|
|
|
sc = regnode_get_softc(regnode);
|
|
|
|
*status = 0;
|
|
axp8xx_read(sc->base_dev, sc->def->enable_reg, &val, 1);
|
|
if (val & sc->def->enable_mask)
|
|
*status = REGULATOR_STATUS_ENABLED;
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
axp8xx_regnode_set_voltage(struct regnode *regnode, int min_uvolt,
|
|
int max_uvolt, int *udelay)
|
|
{
|
|
struct axp8xx_reg_sc *sc;
|
|
uint8_t val;
|
|
|
|
sc = regnode_get_softc(regnode);
|
|
|
|
if (bootverbose)
|
|
device_printf(sc->base_dev, "Setting %s (%s) to %d<->%d\n",
|
|
regnode_get_name(regnode),
|
|
sc->def->name,
|
|
min_uvolt, max_uvolt);
|
|
|
|
if (sc->def->voltage_step1 == 0)
|
|
return (ENXIO);
|
|
|
|
if (axp8xx_regnode_voltage_to_reg(sc, min_uvolt, max_uvolt, &val) != 0)
|
|
return (ERANGE);
|
|
|
|
axp8xx_write(sc->base_dev, sc->def->voltage_reg, val);
|
|
|
|
*udelay = 0;
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
axp8xx_regnode_get_voltage(struct regnode *regnode, int *uvolt)
|
|
{
|
|
struct axp8xx_reg_sc *sc;
|
|
uint8_t val;
|
|
|
|
sc = regnode_get_softc(regnode);
|
|
|
|
if (!sc->def->voltage_step1 || !sc->def->voltage_step2)
|
|
return (ENXIO);
|
|
|
|
axp8xx_read(sc->base_dev, sc->def->voltage_reg, &val, 1);
|
|
axp8xx_regnode_reg_to_voltage(sc, val & AXP_VOLTCTL_MASK, uvolt);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static regnode_method_t axp8xx_regnode_methods[] = {
|
|
/* Regulator interface */
|
|
REGNODEMETHOD(regnode_init, axp8xx_regnode_init),
|
|
REGNODEMETHOD(regnode_enable, axp8xx_regnode_enable),
|
|
REGNODEMETHOD(regnode_status, axp8xx_regnode_status),
|
|
REGNODEMETHOD(regnode_set_voltage, axp8xx_regnode_set_voltage),
|
|
REGNODEMETHOD(regnode_get_voltage, axp8xx_regnode_get_voltage),
|
|
REGNODEMETHOD(regnode_check_voltage, regnode_method_check_voltage),
|
|
REGNODEMETHOD_END
|
|
};
|
|
DEFINE_CLASS_1(axp8xx_regnode, axp8xx_regnode_class, axp8xx_regnode_methods,
|
|
sizeof(struct axp8xx_reg_sc), regnode_class);
|
|
|
|
static void
|
|
axp8xx_shutdown(void *devp, int howto)
|
|
{
|
|
device_t dev;
|
|
|
|
if ((howto & RB_POWEROFF) == 0)
|
|
return;
|
|
|
|
dev = devp;
|
|
|
|
if (bootverbose)
|
|
device_printf(dev, "Shutdown Axp8xx\n");
|
|
|
|
axp8xx_write(dev, AXP_POWERBAT, AXP_POWERBAT_SHUTDOWN);
|
|
}
|
|
|
|
static int
|
|
axp8xx_sysctl_chargecurrent(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
device_t dev = arg1;
|
|
uint8_t data;
|
|
int val, error;
|
|
|
|
error = axp8xx_read(dev, AXP_CHARGERCTL1, &data, 1);
|
|
if (error != 0)
|
|
return (error);
|
|
|
|
if (bootverbose)
|
|
device_printf(dev, "Raw CHARGECTL1 val: 0x%0x\n", data);
|
|
val = (data & AXP_CHARGERCTL1_CMASK);
|
|
error = sysctl_handle_int(oidp, &val, 0, req);
|
|
if (error || !req->newptr) /* error || read request */
|
|
return (error);
|
|
|
|
if ((val < AXP_CHARGERCTL1_MIN) || (val > AXP_CHARGERCTL1_MAX))
|
|
return (EINVAL);
|
|
|
|
val |= (data & (AXP_CHARGERCTL1_CMASK << 4));
|
|
axp8xx_write(dev, AXP_CHARGERCTL1, val);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
axp8xx_sysctl(SYSCTL_HANDLER_ARGS)
|
|
{
|
|
struct axp8xx_softc *sc;
|
|
device_t dev = arg1;
|
|
enum axp8xx_sensor sensor = arg2;
|
|
const struct axp8xx_config *c;
|
|
uint8_t data;
|
|
int val, i, found, batt_val;
|
|
uint8_t lo, hi;
|
|
|
|
sc = device_get_softc(dev);
|
|
c = sc->config;
|
|
|
|
for (found = 0, i = 0; i < sc->nsensors; i++) {
|
|
if (sc->sensors[i].id == sensor) {
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (found == 0)
|
|
return (ENOENT);
|
|
|
|
switch (sensor) {
|
|
case AXP_SENSOR_ACIN_PRESENT:
|
|
if (axp8xx_read(dev, AXP_POWERSRC, &data, 1) == 0)
|
|
val = !!(data & AXP_POWERSRC_ACIN);
|
|
break;
|
|
case AXP_SENSOR_VBUS_PRESENT:
|
|
if (axp8xx_read(dev, AXP_POWERSRC, &data, 1) == 0)
|
|
val = !!(data & AXP_POWERSRC_VBUS);
|
|
break;
|
|
case AXP_SENSOR_BATT_PRESENT:
|
|
if (axp8xx_read(dev, AXP_POWERMODE, &data, 1) == 0) {
|
|
if (data & AXP_POWERMODE_BAT_VALID)
|
|
val = !!(data & AXP_POWERMODE_BAT_PRESENT);
|
|
}
|
|
break;
|
|
case AXP_SENSOR_BATT_CHARGING:
|
|
if (axp8xx_read(dev, AXP_POWERMODE, &data, 1) == 0)
|
|
val = !!(data & AXP_POWERMODE_BAT_CHARGING);
|
|
break;
|
|
case AXP_SENSOR_BATT_CHARGE_STATE:
|
|
if (axp8xx_read(dev, AXP_BAT_CAP, &data, 1) == 0 &&
|
|
(data & AXP_BAT_CAP_VALID) != 0) {
|
|
batt_val = (data & AXP_BAT_CAP_PERCENT);
|
|
if (batt_val <= sc->shut_thres)
|
|
val = BATT_CAPACITY_CRITICAL;
|
|
else if (batt_val <= sc->warn_thres)
|
|
val = BATT_CAPACITY_WARNING;
|
|
else
|
|
val = BATT_CAPACITY_NORMAL;
|
|
}
|
|
break;
|
|
case AXP_SENSOR_BATT_CAPACITY_PERCENT:
|
|
if (axp8xx_read(dev, AXP_BAT_CAP, &data, 1) == 0 &&
|
|
(data & AXP_BAT_CAP_VALID) != 0)
|
|
val = (data & AXP_BAT_CAP_PERCENT);
|
|
break;
|
|
case AXP_SENSOR_BATT_VOLTAGE:
|
|
if (axp8xx_read(dev, AXP_BATSENSE_HI, &hi, 1) == 0 &&
|
|
axp8xx_read(dev, AXP_BATSENSE_LO, &lo, 1) == 0) {
|
|
val = (AXP_SENSOR_BAT_H(hi) | AXP_SENSOR_BAT_L(lo));
|
|
val *= c->batsense_step;
|
|
}
|
|
break;
|
|
case AXP_SENSOR_BATT_CHARGE_CURRENT:
|
|
if (axp8xx_read(dev, AXP_POWERSRC, &data, 1) == 0 &&
|
|
(data & AXP_POWERSRC_CHARING) != 0 &&
|
|
axp8xx_read(dev, AXP_BATCHG_HI, &hi, 1) == 0 &&
|
|
axp8xx_read(dev, AXP_BATCHG_LO, &lo, 1) == 0) {
|
|
val = (AXP_SENSOR_BAT_H(hi) | AXP_SENSOR_BAT_L(lo));
|
|
val *= c->charge_step;
|
|
}
|
|
break;
|
|
case AXP_SENSOR_BATT_DISCHARGE_CURRENT:
|
|
if (axp8xx_read(dev, AXP_POWERSRC, &data, 1) == 0 &&
|
|
(data & AXP_POWERSRC_CHARING) == 0 &&
|
|
axp8xx_read(dev, AXP_BATDISCHG_HI, &hi, 1) == 0 &&
|
|
axp8xx_read(dev, AXP_BATDISCHG_LO, &lo, 1) == 0) {
|
|
val = (AXP_SENSOR_BAT_H(hi) | AXP_SENSOR_BAT_L(lo));
|
|
val *= c->discharge_step;
|
|
}
|
|
break;
|
|
case AXP_SENSOR_BATT_MAXIMUM_CAPACITY:
|
|
if (axp8xx_read(dev, AXP_BAT_MAX_CAP_HI, &hi, 1) == 0 &&
|
|
axp8xx_read(dev, AXP_BAT_MAX_CAP_LO, &lo, 1) == 0) {
|
|
val = AXP_SENSOR_COULOMB(hi, lo);
|
|
val *= c->maxcap_step;
|
|
}
|
|
break;
|
|
case AXP_SENSOR_BATT_CURRENT_CAPACITY:
|
|
if (axp8xx_read(dev, AXP_BAT_COULOMB_HI, &hi, 1) == 0 &&
|
|
axp8xx_read(dev, AXP_BAT_COULOMB_LO, &lo, 1) == 0) {
|
|
val = AXP_SENSOR_COULOMB(hi, lo);
|
|
val *= c->coulomb_step;
|
|
}
|
|
break;
|
|
}
|
|
|
|
return sysctl_handle_opaque(oidp, &val, sizeof(val), req);
|
|
}
|
|
|
|
static void
|
|
axp8xx_intr(void *arg)
|
|
{
|
|
device_t dev;
|
|
uint8_t val;
|
|
int error;
|
|
|
|
dev = arg;
|
|
|
|
error = axp8xx_read(dev, AXP_IRQSTAT1, &val, 1);
|
|
if (error != 0)
|
|
return;
|
|
|
|
if (val) {
|
|
if (bootverbose)
|
|
device_printf(dev, "AXP_IRQSTAT1 val: %x\n", val);
|
|
if (val & AXP_IRQSTAT1_ACIN_HI)
|
|
devctl_notify("PMU", "AC", "plugged", NULL);
|
|
if (val & AXP_IRQSTAT1_ACIN_LO)
|
|
devctl_notify("PMU", "AC", "unplugged", NULL);
|
|
if (val & AXP_IRQSTAT1_VBUS_HI)
|
|
devctl_notify("PMU", "USB", "plugged", NULL);
|
|
if (val & AXP_IRQSTAT1_VBUS_LO)
|
|
devctl_notify("PMU", "USB", "unplugged", NULL);
|
|
/* Acknowledge */
|
|
axp8xx_write(dev, AXP_IRQSTAT1, val);
|
|
}
|
|
|
|
error = axp8xx_read(dev, AXP_IRQSTAT2, &val, 1);
|
|
if (error != 0)
|
|
return;
|
|
|
|
if (val) {
|
|
if (bootverbose)
|
|
device_printf(dev, "AXP_IRQSTAT2 val: %x\n", val);
|
|
if (val & AXP_IRQSTAT2_BATCHGD)
|
|
devctl_notify("PMU", "Battery", "charged", NULL);
|
|
if (val & AXP_IRQSTAT2_BATCHGC)
|
|
devctl_notify("PMU", "Battery", "charging", NULL);
|
|
if (val & AXP_IRQSTAT2_BAT_NO)
|
|
devctl_notify("PMU", "Battery", "absent", NULL);
|
|
if (val & AXP_IRQSTAT2_BAT_IN)
|
|
devctl_notify("PMU", "Battery", "plugged", NULL);
|
|
/* Acknowledge */
|
|
axp8xx_write(dev, AXP_IRQSTAT2, val);
|
|
}
|
|
|
|
error = axp8xx_read(dev, AXP_IRQSTAT3, &val, 1);
|
|
if (error != 0)
|
|
return;
|
|
|
|
if (val) {
|
|
/* Acknowledge */
|
|
axp8xx_write(dev, AXP_IRQSTAT3, val);
|
|
}
|
|
|
|
error = axp8xx_read(dev, AXP_IRQSTAT4, &val, 1);
|
|
if (error != 0)
|
|
return;
|
|
|
|
if (val) {
|
|
if (bootverbose)
|
|
device_printf(dev, "AXP_IRQSTAT4 val: %x\n", val);
|
|
if (val & AXP_IRQSTAT4_BATLVL_LO0)
|
|
devctl_notify("PMU", "Battery", "shutdown-threshold", NULL);
|
|
if (val & AXP_IRQSTAT4_BATLVL_LO1)
|
|
devctl_notify("PMU", "Battery", "warning-threshold", NULL);
|
|
/* Acknowledge */
|
|
axp8xx_write(dev, AXP_IRQSTAT4, val);
|
|
}
|
|
|
|
error = axp8xx_read(dev, AXP_IRQSTAT5, &val, 1);
|
|
if (error != 0)
|
|
return;
|
|
|
|
if (val != 0) {
|
|
if ((val & AXP_IRQSTAT5_POKSIRQ) != 0) {
|
|
if (bootverbose)
|
|
device_printf(dev, "Power button pressed\n");
|
|
shutdown_nice(RB_POWEROFF);
|
|
}
|
|
/* Acknowledge */
|
|
axp8xx_write(dev, AXP_IRQSTAT5, val);
|
|
}
|
|
|
|
error = axp8xx_read(dev, AXP_IRQSTAT6, &val, 1);
|
|
if (error != 0)
|
|
return;
|
|
|
|
if (val) {
|
|
/* Acknowledge */
|
|
axp8xx_write(dev, AXP_IRQSTAT6, val);
|
|
}
|
|
}
|
|
|
|
static device_t
|
|
axp8xx_gpio_get_bus(device_t dev)
|
|
{
|
|
struct axp8xx_softc *sc;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
return (sc->gpiodev);
|
|
}
|
|
|
|
static int
|
|
axp8xx_gpio_pin_max(device_t dev, int *maxpin)
|
|
{
|
|
*maxpin = nitems(axp8xx_pins) - 1;
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
axp8xx_gpio_pin_getname(device_t dev, uint32_t pin, char *name)
|
|
{
|
|
if (pin >= nitems(axp8xx_pins))
|
|
return (EINVAL);
|
|
|
|
snprintf(name, GPIOMAXNAME, "%s", axp8xx_pins[pin].name);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
axp8xx_gpio_pin_getcaps(device_t dev, uint32_t pin, uint32_t *caps)
|
|
{
|
|
if (pin >= nitems(axp8xx_pins))
|
|
return (EINVAL);
|
|
|
|
*caps = GPIO_PIN_INPUT | GPIO_PIN_OUTPUT;
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
axp8xx_gpio_pin_getflags(device_t dev, uint32_t pin, uint32_t *flags)
|
|
{
|
|
struct axp8xx_softc *sc;
|
|
uint8_t data, func;
|
|
int error;
|
|
|
|
if (pin >= nitems(axp8xx_pins))
|
|
return (EINVAL);
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
AXP_LOCK(sc);
|
|
error = axp8xx_read(dev, axp8xx_pins[pin].ctrl_reg, &data, 1);
|
|
if (error == 0) {
|
|
func = (data & AXP_GPIO_FUNC) >> AXP_GPIO_FUNC_SHIFT;
|
|
if (func == AXP_GPIO_FUNC_INPUT)
|
|
*flags = GPIO_PIN_INPUT;
|
|
else if (func == AXP_GPIO_FUNC_DRVLO ||
|
|
func == AXP_GPIO_FUNC_DRVHI)
|
|
*flags = GPIO_PIN_OUTPUT;
|
|
else
|
|
*flags = 0;
|
|
}
|
|
AXP_UNLOCK(sc);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
axp8xx_gpio_pin_setflags(device_t dev, uint32_t pin, uint32_t flags)
|
|
{
|
|
struct axp8xx_softc *sc;
|
|
uint8_t data;
|
|
int error;
|
|
|
|
if (pin >= nitems(axp8xx_pins))
|
|
return (EINVAL);
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
AXP_LOCK(sc);
|
|
error = axp8xx_read(dev, axp8xx_pins[pin].ctrl_reg, &data, 1);
|
|
if (error == 0) {
|
|
data &= ~AXP_GPIO_FUNC;
|
|
if ((flags & (GPIO_PIN_INPUT|GPIO_PIN_OUTPUT)) != 0) {
|
|
if ((flags & GPIO_PIN_OUTPUT) == 0)
|
|
data |= AXP_GPIO_FUNC_INPUT;
|
|
}
|
|
error = axp8xx_write(dev, axp8xx_pins[pin].ctrl_reg, data);
|
|
}
|
|
AXP_UNLOCK(sc);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
axp8xx_gpio_pin_get(device_t dev, uint32_t pin, unsigned int *val)
|
|
{
|
|
struct axp8xx_softc *sc;
|
|
uint8_t data, func;
|
|
int error;
|
|
|
|
if (pin >= nitems(axp8xx_pins))
|
|
return (EINVAL);
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
AXP_LOCK(sc);
|
|
error = axp8xx_read(dev, axp8xx_pins[pin].ctrl_reg, &data, 1);
|
|
if (error == 0) {
|
|
func = (data & AXP_GPIO_FUNC) >> AXP_GPIO_FUNC_SHIFT;
|
|
switch (func) {
|
|
case AXP_GPIO_FUNC_DRVLO:
|
|
*val = 0;
|
|
break;
|
|
case AXP_GPIO_FUNC_DRVHI:
|
|
*val = 1;
|
|
break;
|
|
case AXP_GPIO_FUNC_INPUT:
|
|
error = axp8xx_read(dev, AXP_GPIO_SIGBIT, &data, 1);
|
|
if (error == 0)
|
|
*val = (data & (1 << pin)) ? 1 : 0;
|
|
break;
|
|
default:
|
|
error = EIO;
|
|
break;
|
|
}
|
|
}
|
|
AXP_UNLOCK(sc);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
axp8xx_gpio_pin_set(device_t dev, uint32_t pin, unsigned int val)
|
|
{
|
|
struct axp8xx_softc *sc;
|
|
uint8_t data, func;
|
|
int error;
|
|
|
|
if (pin >= nitems(axp8xx_pins))
|
|
return (EINVAL);
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
AXP_LOCK(sc);
|
|
error = axp8xx_read(dev, axp8xx_pins[pin].ctrl_reg, &data, 1);
|
|
if (error == 0) {
|
|
func = (data & AXP_GPIO_FUNC) >> AXP_GPIO_FUNC_SHIFT;
|
|
switch (func) {
|
|
case AXP_GPIO_FUNC_DRVLO:
|
|
case AXP_GPIO_FUNC_DRVHI:
|
|
data &= ~AXP_GPIO_FUNC;
|
|
data |= (val << AXP_GPIO_FUNC_SHIFT);
|
|
break;
|
|
default:
|
|
error = EIO;
|
|
break;
|
|
}
|
|
}
|
|
if (error == 0)
|
|
error = axp8xx_write(dev, axp8xx_pins[pin].ctrl_reg, data);
|
|
AXP_UNLOCK(sc);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
axp8xx_gpio_pin_toggle(device_t dev, uint32_t pin)
|
|
{
|
|
struct axp8xx_softc *sc;
|
|
uint8_t data, func;
|
|
int error;
|
|
|
|
if (pin >= nitems(axp8xx_pins))
|
|
return (EINVAL);
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
AXP_LOCK(sc);
|
|
error = axp8xx_read(dev, axp8xx_pins[pin].ctrl_reg, &data, 1);
|
|
if (error == 0) {
|
|
func = (data & AXP_GPIO_FUNC) >> AXP_GPIO_FUNC_SHIFT;
|
|
switch (func) {
|
|
case AXP_GPIO_FUNC_DRVLO:
|
|
data &= ~AXP_GPIO_FUNC;
|
|
data |= (AXP_GPIO_FUNC_DRVHI << AXP_GPIO_FUNC_SHIFT);
|
|
break;
|
|
case AXP_GPIO_FUNC_DRVHI:
|
|
data &= ~AXP_GPIO_FUNC;
|
|
data |= (AXP_GPIO_FUNC_DRVLO << AXP_GPIO_FUNC_SHIFT);
|
|
break;
|
|
default:
|
|
error = EIO;
|
|
break;
|
|
}
|
|
}
|
|
if (error == 0)
|
|
error = axp8xx_write(dev, axp8xx_pins[pin].ctrl_reg, data);
|
|
AXP_UNLOCK(sc);
|
|
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
axp8xx_gpio_map_gpios(device_t bus, phandle_t dev, phandle_t gparent,
|
|
int gcells, pcell_t *gpios, uint32_t *pin, uint32_t *flags)
|
|
{
|
|
if (gpios[0] >= nitems(axp8xx_pins))
|
|
return (EINVAL);
|
|
|
|
*pin = gpios[0];
|
|
*flags = gpios[1];
|
|
|
|
return (0);
|
|
}
|
|
|
|
static phandle_t
|
|
axp8xx_get_node(device_t dev, device_t bus)
|
|
{
|
|
return (ofw_bus_get_node(dev));
|
|
}
|
|
|
|
static struct axp8xx_reg_sc *
|
|
axp8xx_reg_attach(device_t dev, phandle_t node,
|
|
struct axp8xx_regdef *def)
|
|
{
|
|
struct axp8xx_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)
|
|
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, &axp8xx_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
|
|
axp8xx_regdev_map(device_t dev, phandle_t xref, int ncells, pcell_t *cells,
|
|
intptr_t *num)
|
|
{
|
|
struct axp8xx_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 int
|
|
axp8xx_probe(device_t dev)
|
|
{
|
|
if (!ofw_bus_status_okay(dev))
|
|
return (ENXIO);
|
|
|
|
switch (ofw_bus_search_compatible(dev, compat_data)->ocd_data)
|
|
{
|
|
case AXP803:
|
|
device_set_desc(dev, "X-Powers AXP803 Power Management Unit");
|
|
break;
|
|
case AXP813:
|
|
device_set_desc(dev, "X-Powers AXP813 Power Management Unit");
|
|
break;
|
|
default:
|
|
return (ENXIO);
|
|
}
|
|
|
|
return (BUS_PROBE_DEFAULT);
|
|
}
|
|
|
|
static int
|
|
axp8xx_attach(device_t dev)
|
|
{
|
|
struct axp8xx_softc *sc;
|
|
struct axp8xx_reg_sc *reg;
|
|
uint8_t chip_id, val;
|
|
phandle_t rnode, child;
|
|
int error, i;
|
|
|
|
sc = device_get_softc(dev);
|
|
|
|
sc->addr = iicbus_get_addr(dev);
|
|
mtx_init(&sc->mtx, device_get_nameunit(dev), NULL, MTX_DEF);
|
|
|
|
error = bus_alloc_resources(dev, axp8xx_spec, &sc->res);
|
|
if (error != 0) {
|
|
device_printf(dev, "cannot allocate resources for device\n");
|
|
return (error);
|
|
}
|
|
|
|
if (bootverbose) {
|
|
axp8xx_read(dev, AXP_ICTYPE, &chip_id, 1);
|
|
device_printf(dev, "chip ID 0x%02x\n", chip_id);
|
|
}
|
|
|
|
sc->nregs = nitems(axp8xx_common_regdefs);
|
|
sc->type = ofw_bus_search_compatible(dev, compat_data)->ocd_data;
|
|
switch (sc->type) {
|
|
case AXP803:
|
|
sc->nregs += nitems(axp803_regdefs);
|
|
break;
|
|
case AXP813:
|
|
sc->nregs += nitems(axp813_regdefs);
|
|
break;
|
|
}
|
|
sc->config = &axp803_config;
|
|
sc->sensors = axp8xx_common_sensors;
|
|
sc->nsensors = nitems(axp8xx_common_sensors);
|
|
|
|
sc->regs = malloc(sizeof(struct axp8xx_reg_sc *) * sc->nregs,
|
|
M_AXP8XX_REG, M_WAITOK | M_ZERO);
|
|
|
|
/* 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++) {
|
|
char *regname;
|
|
struct axp8xx_regdef *regdef;
|
|
|
|
if (i <= nitems(axp8xx_common_regdefs)) {
|
|
regname = axp8xx_common_regdefs[i].name;
|
|
regdef = &axp8xx_common_regdefs[i];
|
|
} else {
|
|
int off;
|
|
|
|
off = i - nitems(axp8xx_common_regdefs);
|
|
switch (sc->type) {
|
|
case AXP803:
|
|
regname = axp803_regdefs[off].name;
|
|
regdef = &axp803_regdefs[off];
|
|
break;
|
|
case AXP813:
|
|
regname = axp813_regdefs[off].name;
|
|
regdef = &axp813_regdefs[off];
|
|
break;
|
|
}
|
|
}
|
|
child = ofw_bus_find_child(rnode,
|
|
regname);
|
|
if (child == 0)
|
|
continue;
|
|
reg = axp8xx_reg_attach(dev, child,
|
|
regdef);
|
|
if (reg == NULL) {
|
|
device_printf(dev,
|
|
"cannot attach regulator %s\n",
|
|
regname);
|
|
continue;
|
|
}
|
|
sc->regs[i] = reg;
|
|
}
|
|
}
|
|
|
|
/* Add sensors */
|
|
for (i = 0; i < sc->nsensors; i++) {
|
|
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, axp8xx_sysctl,
|
|
sc->sensors[i].format,
|
|
sc->sensors[i].desc);
|
|
}
|
|
SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev),
|
|
SYSCTL_CHILDREN(device_get_sysctl_tree(dev)),
|
|
OID_AUTO, "batchargecurrentstep",
|
|
CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT,
|
|
dev, 0, axp8xx_sysctl_chargecurrent,
|
|
"I", "Battery Charging Current Step, "
|
|
"0: 200mA, 1: 400mA, 2: 600mA, 3: 800mA, "
|
|
"4: 1000mA, 5: 1200mA, 6: 1400mA, 7: 1600mA, "
|
|
"8: 1800mA, 9: 2000mA, 10: 2200mA, 11: 2400mA, "
|
|
"12: 2600mA, 13: 2800mA");
|
|
|
|
/* Get thresholds */
|
|
if (axp8xx_read(dev, AXP_BAT_CAP_WARN, &val, 1) == 0) {
|
|
sc->warn_thres = (val & AXP_BAT_CAP_WARN_LV1) >> 4;
|
|
sc->warn_thres += AXP_BAP_CAP_WARN_LV1BASE;
|
|
sc->shut_thres = (val & AXP_BAT_CAP_WARN_LV2);
|
|
if (bootverbose) {
|
|
device_printf(dev,
|
|
"Raw reg val: 0x%02x\n", val);
|
|
device_printf(dev,
|
|
"Warning threshold: 0x%02x\n", sc->warn_thres);
|
|
device_printf(dev,
|
|
"Shutdown threshold: 0x%02x\n", sc->shut_thres);
|
|
}
|
|
}
|
|
|
|
/* Enable interrupts */
|
|
axp8xx_write(dev, AXP_IRQEN1,
|
|
AXP_IRQEN1_VBUS_LO |
|
|
AXP_IRQEN1_VBUS_HI |
|
|
AXP_IRQEN1_ACIN_LO |
|
|
AXP_IRQEN1_ACIN_HI);
|
|
axp8xx_write(dev, AXP_IRQEN2,
|
|
AXP_IRQEN2_BATCHGD |
|
|
AXP_IRQEN2_BATCHGC |
|
|
AXP_IRQEN2_BAT_NO |
|
|
AXP_IRQEN2_BAT_IN);
|
|
axp8xx_write(dev, AXP_IRQEN3, 0);
|
|
axp8xx_write(dev, AXP_IRQEN4,
|
|
AXP_IRQEN4_BATLVL_LO0 |
|
|
AXP_IRQEN4_BATLVL_LO1);
|
|
axp8xx_write(dev, AXP_IRQEN5,
|
|
AXP_IRQEN5_POKSIRQ |
|
|
AXP_IRQEN5_POKLIRQ);
|
|
axp8xx_write(dev, AXP_IRQEN6, 0);
|
|
|
|
/* Install interrupt handler */
|
|
error = bus_setup_intr(dev, sc->res, INTR_TYPE_MISC | INTR_MPSAFE,
|
|
NULL, axp8xx_intr, dev, &sc->ih);
|
|
if (error != 0) {
|
|
device_printf(dev, "cannot setup interrupt handler\n");
|
|
return (error);
|
|
}
|
|
|
|
EVENTHANDLER_REGISTER(shutdown_final, axp8xx_shutdown, dev,
|
|
SHUTDOWN_PRI_LAST);
|
|
|
|
sc->gpiodev = gpiobus_attach_bus(dev);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static device_method_t axp8xx_methods[] = {
|
|
/* Device interface */
|
|
DEVMETHOD(device_probe, axp8xx_probe),
|
|
DEVMETHOD(device_attach, axp8xx_attach),
|
|
|
|
/* GPIO interface */
|
|
DEVMETHOD(gpio_get_bus, axp8xx_gpio_get_bus),
|
|
DEVMETHOD(gpio_pin_max, axp8xx_gpio_pin_max),
|
|
DEVMETHOD(gpio_pin_getname, axp8xx_gpio_pin_getname),
|
|
DEVMETHOD(gpio_pin_getcaps, axp8xx_gpio_pin_getcaps),
|
|
DEVMETHOD(gpio_pin_getflags, axp8xx_gpio_pin_getflags),
|
|
DEVMETHOD(gpio_pin_setflags, axp8xx_gpio_pin_setflags),
|
|
DEVMETHOD(gpio_pin_get, axp8xx_gpio_pin_get),
|
|
DEVMETHOD(gpio_pin_set, axp8xx_gpio_pin_set),
|
|
DEVMETHOD(gpio_pin_toggle, axp8xx_gpio_pin_toggle),
|
|
DEVMETHOD(gpio_map_gpios, axp8xx_gpio_map_gpios),
|
|
|
|
/* Regdev interface */
|
|
DEVMETHOD(regdev_map, axp8xx_regdev_map),
|
|
|
|
/* OFW bus interface */
|
|
DEVMETHOD(ofw_bus_get_node, axp8xx_get_node),
|
|
|
|
DEVMETHOD_END
|
|
};
|
|
|
|
static driver_t axp8xx_driver = {
|
|
"axp8xx_pmu",
|
|
axp8xx_methods,
|
|
sizeof(struct axp8xx_softc),
|
|
};
|
|
|
|
extern driver_t ofw_gpiobus_driver, gpioc_driver;
|
|
|
|
EARLY_DRIVER_MODULE(axp8xx, iicbus, axp8xx_driver, 0, 0,
|
|
BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LAST);
|
|
EARLY_DRIVER_MODULE(ofw_gpiobus, axp8xx_pmu, ofw_gpiobus_driver, 0, 0,
|
|
BUS_PASS_INTERRUPT + BUS_PASS_ORDER_LAST);
|
|
DRIVER_MODULE(gpioc, axp8xx_pmu, gpioc_driver, 0, 0);
|
|
MODULE_VERSION(axp8xx, 1);
|
|
MODULE_DEPEND(axp8xx, iicbus, 1, 1, 1);
|
|
SIMPLEBUS_PNP_INFO(compat_data);
|