| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <20ADAB092842284E95860F279283C5643BCC3F@BGSMSX101.gar.corp.intel.com>
Date: Thu, 18 Oct 2012 11:19:23 +0000
From: "Tc, Jenny" <jenny.tc@...el.com>
To: Anton Vorontsov <cbouatmailru@...il.com>,
Anton Vorontsov <anton.vorontsov@...aro.org>,
"dwmw2@...radead.org" <dwmw2@...radead.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC: "David Rajamanickam, Ajay Thomas"
<ajay.thomas.david.rajamanickam@...el.com>,
"Pallala, Ramakrishna" <ramakrishna.pallala@...el.com>
Subject: RE: [PATCH V2] power_supply : Introduce battery identification
framework
Anton,
Please ignore this patch. I submitted this as part of charging framework.
-jtc
> -----Original Message-----
> From: linux-kernel-owner@...r.kernel.org [mailto:linux-kernel-
> owner@...r.kernel.org] On Behalf Of Jenny TC
> Sent: Friday, October 12, 2012 10:13 PM
> To: Anton Vorontsov; Anton Vorontsov; dwmw2@...radead.org; linux-
> kernel@...r.kernel.org
> Cc: Tc, Jenny; David Rajamanickam, Ajay Thomas; Pallala, Ramakrishna
> Subject: [PATCH V2] power_supply : Introduce battery identification
> framework
>
> This patch introduces generic battid framework. Different battid drivers
> sitting on different linux kernel subsystem (1wire, I2C, SFI etc) can interface
> with the power supply susbsytem using the APIs exposed in the power
> supply usbsystem. The consumers (charger driver/battery driver/power
> management drivers) can register for notification from the battery id drivers
> using the APIs from this framework
>
> Signed-off-by: Jenny TC <jenny.tc@...el.com>
> Signed-off-by: adavidra <ajay.thomas.david.rajamanickam@...el.com>
> ---
> V1: Submitted the initialcode
> V2:
> Added file headers
>
> drivers/power/Kconfig | 8 ++++
> drivers/power/Makefile | 1 +
> drivers/power/battery_id.c | 94
> ++++++++++++++++++++++++++++++++++++++
> include/linux/power/battery_id.h | 50 ++++++++++++++++++++
> 4 files changed, 153 insertions(+)
> create mode 100644 drivers/power/battery_id.c create mode 100644
> include/linux/power/battery_id.h
>
> diff --git a/drivers/power/Kconfig b/drivers/power/Kconfig index
> 49a8939..74b297d 100644
> --- a/drivers/power/Kconfig
> +++ b/drivers/power/Kconfig
> @@ -8,6 +8,14 @@ menuconfig POWER_SUPPLY
>
> if POWER_SUPPLY
>
> +config POWER_SUPPLY_BATTID
> + bool "Power Supply Battery Identification Framework"
> + help
> + Say Y here to enable the power supply battery idnetification
> + framework. The framework would allow different battery
> identification
> + drivers to interface with power supply subsystem. Also it allows
> consumer
> + drivers to register for notification from the power_supply
> subsystem.
> +
> config POWER_SUPPLY_DEBUG
> bool "Power supply debug"
> help
> diff --git a/drivers/power/Makefile b/drivers/power/Makefile index
> b949cf8..6a63f45 100644
> --- a/drivers/power/Makefile
> +++ b/drivers/power/Makefile
> @@ -3,6 +3,7 @@ ccflags-$(CONFIG_POWER_SUPPLY_DEBUG) := -DDEBUG
> power_supply-y := power_supply_core.o
> power_supply-$(CONFIG_SYSFS) += power_supply_sysfs.o
> power_supply-$(CONFIG_LEDS_TRIGGERS) += power_supply_leds.o
> +power_supply-$(CONFIG_POWER_SUPPLY_BATTID) += battery_id.o
>
> obj-$(CONFIG_POWER_SUPPLY) += power_supply.o
> obj-$(CONFIG_GENERIC_ADC_BATTERY) += generic-adc-battery.o
> diff --git a/drivers/power/battery_id.c b/drivers/power/battery_id.c new file
> mode 100644 index 0000000..f6160b6
> --- /dev/null
> +++ b/drivers/power/battery_id.c
> @@ -0,0 +1,94 @@
> +/*
> + * battery_id.c - Power supply battery identification framework
> + *
> + * Copyright (C) 2012 Intel Corporation
> + *
> + *
> +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> ~~~~~~~~~~~~~~
> +~~~
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; version 2 of the License.
> + *
> + * This program is distributed in the hope that it will be useful, but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> GNU
> + * General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> +along
> + * with this program; if not, write to the Free Software Foundation,
> +Inc.,
> + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
> + *
> + *
> +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> ~~~~~~~~~~~~~~
> +~~~
> + * Author: Jenny TC <jenny.tc@...el.com>
> + * Author: David Rajamanickam, Ajay Thomas
> + * <ajay.thomas.david.rajamanickam@...el.com>
> + */
> +
> +#include <linux/module.h>
> +#include <linux/slab.h>
> +#include <linux/io.h>
> +#include <linux/err.h>
> +#include <linux/notifier.h>
> +#include <linux/power/battery_id.h>
> +
> +ATOMIC_NOTIFIER_HEAD(batt_id_notifier);
> +
> +static struct ps_batt_chg_prof *batt_property; static int batt_status;
> +
> +int batt_id_reg_notifier(struct notifier_block *nb) {
> + return atomic_notifier_chain_register(&batt_id_notifier, nb); }
> +EXPORT_SYMBOL_GPL(batt_id_reg_notifier);
> +
> +void batt_id_unreg_notifier(struct notifier_block *nb) {
> + atomic_notifier_chain_unregister(&batt_id_notifier, nb); }
> +EXPORT_SYMBOL_GPL(batt_id_unreg_notifier);
> +
> +
> +/**
> + * battery_prop_changed - Update properties when battery connection
> status
> + * changes
> + * @battery_conn_stat : The current connection status of battery
> + * @batt_prop : Address of the ps_batt_chg_prof structure with the
> updated
> + * values passed from the calling function
> + *
> + * Whenever the battery connection status changes this function will be
> +called
> + * to indicate a change in the status and to update the status and
> +value of
> + * properties
> + */
> +void battery_prop_changed(int battery_conn_stat,
> + struct ps_batt_chg_prof *batt_prop)
> +{
> + if (batt_status != battery_conn_stat) {
> + if (battery_conn_stat ==
> POWER_SUPPLY_BATTERY_INSERTED)
> + batt_property = batt_prop;
> + else
> + batt_property = NULL;
> +
> + batt_status = battery_conn_stat;
> + }
> +
> + atomic_notifier_call_chain(&batt_id_notifier,
> + 0, &(batt_property));
> +
> +}
> +EXPORT_SYMBOL_GPL(battery_prop_changed);
> +
> +/**
> + * get_batt_prop - Get the battery connection status and updated
> +properties
> + * @batt_prop : battery properties structure copied to this address */
> +int get_batt_prop(struct ps_batt_chg_prof *batt_prop) {
> + if (batt_property)
> + memcpy(batt_prop, batt_property,
> + sizeof(struct ps_batt_chg_prof));
> + else
> + return -ENOMEM;
> + return 0;
> +}
> +EXPORT_SYMBOL_GPL(get_batt_prop);
> diff --git a/include/linux/power/battery_id.h
> b/include/linux/power/battery_id.h
> new file mode 100644
> index 0000000..9a4832e
> --- /dev/null
> +++ b/include/linux/power/battery_id.h
> @@ -0,0 +1,50 @@
> +/*
> + * battery_id.h - Power supply battery identification framework header
> +file
> + *
> + * Copyright (C) 2012 Intel Corporation
> + *
> + *
> +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> ~~~~~~~~~~~~~~
> +~~~
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License as published by
> + * the Free Software Foundation; version 2 of the License.
> + *
> + * This program is distributed in the hope that it will be useful, but
> + * WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
> GNU
> + * General Public License for more details.
> + *
> + * You should have received a copy of the GNU General Public License
> +along
> + * with this program; if not, write to the Free Software Foundation,
> +Inc.,
> + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
> + *
> + *
> +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> ~~~~~~~~~~~~~~
> +~~~
> + * Author: Jenny TC <jenny.tc@...el.com>
> + * Author: David Rajamanickam, Ajay Thomas
> + * <ajay.thomas.david.rajamanickam@...el.com>
> + */
> +
> +#ifndef __BATTERY_ID_H__
> +
> +#define __BATTERY_ID_H__
> +
> +enum {
> + POWER_SUPPLY_BATTERY_REMOVED = 0,
> + POWER_SUPPLY_BATTERY_INSERTED,
> +};
> +
> +/* charging profile structure definition */ struct ps_batt_chg_prof {
> + enum batt_chrg_prof_type chrg_prof_type;
> + void *batt_prof;
> +};
> +
> +/*For notification during battery change event*/
> +extern struct atomic_notifier_head batt_id_notifier;
> +
> +extern void battery_prop_changed(int battery_conn_stat,
> + struct ps_batt_chg_prof *batt_prop); extern
> int
> +get_batt_prop(struct ps_batt_chg_prof *batt_prop); extern int
> +batt_id_reg_notifier(struct notifier_block *nb); extern void
> +batt_id_unreg_notifier(struct notifier_block *nb); #endif
> --
> 1.7.9.5
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the
> body of a message to majordomo@...r.kernel.org More majordomo info at
> http://vger.kernel.org/majordomo-info.html
> Please read the FAQ at http://www.tux.org/lkml/
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists