8054d7cc0d
charger configuration and provide some basic control knobs to set charger voltage and dump config on boot. Two loader tunables have been added: o hw.am335x_pmic.bootverbose set to 1 to get more info on the boot; o hw.am335x_pmic.vo: set to charger voltage to be applied on kernel initialization time, supported values are "4.10V", "4.15V", "4.20V" and "4.25V". Cleanup code a bit in general, move TPS65217 register definitions into a separate header, convert bit-banging defines into bitmap structures. Also threat the case when power source is neither "AC" nor "USB" as "Battery", not "Unknown".
115 lines
3.4 KiB
C
115 lines
3.4 KiB
C
/*-
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* Copyright (c) 2012 Damjan Marion <dmarion@FreeBSD.org>
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* Copyright (c) 2015 Maksym Sobolyev <sobomax@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef __TPS65217X_H__
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#define __TPS65217X_H__
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/*
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* TPS65217 PMIC is a companion chip for AM335x SoC sitting on I2C bus
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*/
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/* TPS65217 Reisters */
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#define TPS65217_CHIPID_REG 0x00
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struct tps65217_chipid_reg {
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unsigned int rev:4;
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unsigned int chip:4;
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#define TPS65217A 0x7
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#define TPS65217B 0xF
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#define TPS65217C 0xE
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#define TPS65217D 0x6
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} __attribute__((__packed__));
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#define TPS65217_INT_REG 0x02
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struct tps65217_int_reg {
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unsigned int usbi:1;
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unsigned int aci:1;
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unsigned int pbi:1;
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unsigned int reserved3:1;
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unsigned int usbm:1;
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unsigned int acm:1;
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unsigned int pbm:1;
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unsigned int reserved7:1;
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} __attribute__((__packed__));
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#define TPS65217_STATUS_REG 0x0A
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struct tps65217_status_reg {
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unsigned int pb:1;
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unsigned int reserved1:1;
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unsigned int usbpwr:1;
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unsigned int acpwr:1;
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unsigned int reserved4:3;
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unsigned int off:1;
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} __attribute__((__packed__));
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#define TPS65217_CHGCONFIG0_REG 0x03
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struct tps65217_chgconfig0_reg {
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unsigned int battemp:1;
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unsigned int pchgtout:1;
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unsigned int chgtout:1;
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unsigned int active:1;
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unsigned int termi:1;
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unsigned int tsusp:1;
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unsigned int dppm:1;
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unsigned int treg:1;
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} __attribute__((__packed__));
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#define TPS65217_CHGCONFIG1_REG 0x04
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struct tps65217_chgconfig1_reg {
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unsigned int chg_en:1;
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unsigned int susp:1;
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unsigned int term:1;
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unsigned int reset:1;
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unsigned int ntc_type:1;
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unsigned int tmr_en:1;
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unsigned int timer:2;
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} __attribute__((__packed__));
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#define TPS65217_CHGCONFIG2_REG 0x05
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struct tps65217_chgconfig2_reg {
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unsigned int reserved:4;
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unsigned int voreg:2;
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#define TPS65217_VO_410V 0b00
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#define TPS65217_VO_415V 0b01
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#define TPS65217_VO_420V 0b10
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#define TPS65217_VO_425V 0b11
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unsigned int vprechg:1;
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unsigned int dyntmr:1;
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} __attribute__((__packed__));
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#define TPS65217_CHGCONFIG3_REG 0x06
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struct tps65217_chgconfig3_reg {
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unsigned int trange:1;
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unsigned int termif:2;
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unsigned int pchrgt:1;
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unsigned int dppmth:2;
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unsigned int ichrg:2;
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} __attribute__((__packed__));
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#endif /* __TPS65217X_H__ */
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