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https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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c329795052
Current scheme is fragile and is likely to go off sync, especially on batfull->adapter charging automatic MBC transition. Query the status bit every time we need it instead. We need to export another function to query for USB presence because we can't read anything from PCF50633 (via I2C) inside irq context and that is needed by usb gadgets. Signed-off-by: Paul Fertser <fercerpav@gmail.com> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
135 lines
4.0 KiB
C
135 lines
4.0 KiB
C
/*
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* mbc.h -- Driver for NXP PCF50633 Main Battery Charger
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*
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* (C) 2006-2008 by Openmoko, Inc.
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*/
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#ifndef __LINUX_MFD_PCF50633_MBC_H
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#define __LINUX_MFD_PCF50633_MBC_H
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#include <linux/mfd/pcf50633/core.h>
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#include <linux/platform_device.h>
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#define PCF50633_REG_MBCC1 0x43
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#define PCF50633_REG_MBCC2 0x44
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#define PCF50633_REG_MBCC3 0x45
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#define PCF50633_REG_MBCC4 0x46
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#define PCF50633_REG_MBCC5 0x47
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#define PCF50633_REG_MBCC6 0x48
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#define PCF50633_REG_MBCC7 0x49
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#define PCF50633_REG_MBCC8 0x4a
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#define PCF50633_REG_MBCS1 0x4b
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#define PCF50633_REG_MBCS2 0x4c
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#define PCF50633_REG_MBCS3 0x4d
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enum pcf50633_reg_mbcc1 {
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PCF50633_MBCC1_CHGENA = 0x01, /* Charger enable */
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PCF50633_MBCC1_AUTOSTOP = 0x02,
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PCF50633_MBCC1_AUTORES = 0x04, /* automatic resume */
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PCF50633_MBCC1_RESUME = 0x08, /* explicit resume cmd */
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PCF50633_MBCC1_RESTART = 0x10, /* restart charging */
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PCF50633_MBCC1_PREWDTIME_60M = 0x20, /* max. precharging time */
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PCF50633_MBCC1_WDTIME_1H = 0x00,
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PCF50633_MBCC1_WDTIME_2H = 0x40,
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PCF50633_MBCC1_WDTIME_4H = 0x80,
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PCF50633_MBCC1_WDTIME_6H = 0xc0,
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};
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#define PCF50633_MBCC1_WDTIME_MASK 0xc0
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enum pcf50633_reg_mbcc2 {
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PCF50633_MBCC2_VBATCOND_2V7 = 0x00,
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PCF50633_MBCC2_VBATCOND_2V85 = 0x01,
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PCF50633_MBCC2_VBATCOND_3V0 = 0x02,
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PCF50633_MBCC2_VBATCOND_3V15 = 0x03,
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PCF50633_MBCC2_VMAX_4V = 0x00,
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PCF50633_MBCC2_VMAX_4V20 = 0x28,
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PCF50633_MBCC2_VRESDEBTIME_64S = 0x80, /* debounce time (32/64sec) */
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};
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enum pcf50633_reg_mbcc7 {
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PCF50633_MBCC7_USB_100mA = 0x00,
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PCF50633_MBCC7_USB_500mA = 0x01,
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PCF50633_MBCC7_USB_1000mA = 0x02,
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PCF50633_MBCC7_USB_SUSPEND = 0x03,
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PCF50633_MBCC7_BATTEMP_EN = 0x04,
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PCF50633_MBCC7_BATSYSIMAX_1A6 = 0x00,
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PCF50633_MBCC7_BATSYSIMAX_1A8 = 0x40,
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PCF50633_MBCC7_BATSYSIMAX_2A0 = 0x80,
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PCF50633_MBCC7_BATSYSIMAX_2A2 = 0xc0,
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};
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#define PCF50633_MBCC7_USB_MASK 0x03
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enum pcf50633_reg_mbcc8 {
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PCF50633_MBCC8_USBENASUS = 0x10,
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};
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enum pcf50633_reg_mbcs1 {
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PCF50633_MBCS1_USBPRES = 0x01,
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PCF50633_MBCS1_USBOK = 0x02,
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PCF50633_MBCS1_ADAPTPRES = 0x04,
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PCF50633_MBCS1_ADAPTOK = 0x08,
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PCF50633_MBCS1_TBAT_OK = 0x00,
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PCF50633_MBCS1_TBAT_ABOVE = 0x10,
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PCF50633_MBCS1_TBAT_BELOW = 0x20,
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PCF50633_MBCS1_TBAT_UNDEF = 0x30,
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PCF50633_MBCS1_PREWDTEXP = 0x40,
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PCF50633_MBCS1_WDTEXP = 0x80,
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};
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enum pcf50633_reg_mbcs2_mbcmod {
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PCF50633_MBCS2_MBC_PLAY = 0x00,
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PCF50633_MBCS2_MBC_USB_PRE = 0x01,
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PCF50633_MBCS2_MBC_USB_PRE_WAIT = 0x02,
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PCF50633_MBCS2_MBC_USB_FAST = 0x03,
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PCF50633_MBCS2_MBC_USB_FAST_WAIT = 0x04,
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PCF50633_MBCS2_MBC_USB_SUSPEND = 0x05,
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PCF50633_MBCS2_MBC_ADP_PRE = 0x06,
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PCF50633_MBCS2_MBC_ADP_PRE_WAIT = 0x07,
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PCF50633_MBCS2_MBC_ADP_FAST = 0x08,
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PCF50633_MBCS2_MBC_ADP_FAST_WAIT = 0x09,
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PCF50633_MBCS2_MBC_BAT_FULL = 0x0a,
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PCF50633_MBCS2_MBC_HALT = 0x0b,
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};
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#define PCF50633_MBCS2_MBC_MASK 0x0f
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enum pcf50633_reg_mbcs2_chgstat {
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PCF50633_MBCS2_CHGS_NONE = 0x00,
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PCF50633_MBCS2_CHGS_ADAPTER = 0x10,
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PCF50633_MBCS2_CHGS_USB = 0x20,
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PCF50633_MBCS2_CHGS_BOTH = 0x30,
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};
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#define PCF50633_MBCS2_RESSTAT_AUTO 0x40
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enum pcf50633_reg_mbcs3 {
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PCF50633_MBCS3_USBLIM_PLAY = 0x01,
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PCF50633_MBCS3_USBLIM_CGH = 0x02,
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PCF50633_MBCS3_TLIM_PLAY = 0x04,
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PCF50633_MBCS3_TLIM_CHG = 0x08,
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PCF50633_MBCS3_ILIM = 0x10, /* 1: Ibat > Icutoff */
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PCF50633_MBCS3_VLIM = 0x20, /* 1: Vbat == Vmax */
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PCF50633_MBCS3_VBATSTAT = 0x40, /* 1: Vbat > Vbatcond */
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PCF50633_MBCS3_VRES = 0x80, /* 1: Vbat > Vth(RES) */
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};
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#define PCF50633_MBCC2_VBATCOND_MASK 0x03
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#define PCF50633_MBCC2_VMAX_MASK 0x3c
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/* Charger status */
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#define PCF50633_MBC_USB_ONLINE 0x01
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#define PCF50633_MBC_USB_ACTIVE 0x02
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#define PCF50633_MBC_ADAPTER_ONLINE 0x04
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#define PCF50633_MBC_ADAPTER_ACTIVE 0x08
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int pcf50633_mbc_usb_curlim_set(struct pcf50633 *pcf, int ma);
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int pcf50633_mbc_get_status(struct pcf50633 *);
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int pcf50633_mbc_get_usb_online_status(struct pcf50633 *);
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#endif
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