power_supply: Add test_power driver (a1e50fd4) · Commits · e / devices / android_kernel_fairphone_FP5

drivers/power/Kconfig

+5 −0

Original line number	Diff line number	Diff line
		@@ -57,6 +57,11 @@ config WM8350_POWER
		Say Y here to enable support for the power management unit
		provided by the Wolfson Microelectronics WM8350 PMIC.

		config TEST_POWER
		tristate "Test power driver"
		help
		This driver is used for testing. It's safe to say M here.

		config BATTERY_DS2760
		tristate "DS2760 battery driver (HP iPAQ & others)"
		select W1

drivers/power/Makefile

+1 −0

Original line number	Diff line number	Diff line
		@@ -20,6 +20,7 @@ obj-$(CONFIG_MAX8925_POWER) += max8925_power.o
		obj-$(CONFIG_WM831X_BACKUP) += wm831x_backup.o
		obj-$(CONFIG_WM831X_POWER) += wm831x_power.o
		obj-$(CONFIG_WM8350_POWER) += wm8350_power.o
		obj-$(CONFIG_TEST_POWER) += test_power.o

		obj-$(CONFIG_BATTERY_DS2760) += ds2760_battery.o
		obj-$(CONFIG_BATTERY_DS2782) += ds2782_battery.o

drivers/power/test_power.c

0 → 100644

+163 −0

Original line number	Diff line number	Diff line
		/*
		* Power supply driver for testing.
		*
		* Copyright 2010 Anton Vorontsov <cbouatmailru@gmail.com>
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 as
		* published by the Free Software Foundation.
		*/

		#include <linux/kernel.h>
		#include <linux/module.h>
		#include <linux/power_supply.h>
		#include <linux/errno.h>
		#include <linux/delay.h>
		#include <linux/vermagic.h>

		static int test_power_ac_online = 1;
		static int test_power_battery_status = POWER_SUPPLY_STATUS_CHARGING;

		static int test_power_get_ac_property(struct power_supply *psy,
		enum power_supply_property psp,
		union power_supply_propval *val)
		{
		switch (psp) {
		case POWER_SUPPLY_PROP_ONLINE:
		val->intval = test_power_ac_online;
		break;
		default:
		return -EINVAL;
		}
		return 0;
		}

		static int test_power_get_battery_property(struct power_supply *psy,
		enum power_supply_property psp,
		union power_supply_propval *val)
		{
		switch (psp) {
		case POWER_SUPPLY_PROP_MODEL_NAME:
		val->strval = "Test battery";
		break;
		case POWER_SUPPLY_PROP_MANUFACTURER:
		val->strval = "Linux";
		break;
		case POWER_SUPPLY_PROP_SERIAL_NUMBER:
		val->strval = UTS_RELEASE;
		break;
		case POWER_SUPPLY_PROP_STATUS:
		val->intval = test_power_battery_status;
		break;
		case POWER_SUPPLY_PROP_CHARGE_TYPE:
		val->intval = POWER_SUPPLY_CHARGE_TYPE_FAST;
		break;
		case POWER_SUPPLY_PROP_HEALTH:
		val->intval = POWER_SUPPLY_HEALTH_GOOD;
		break;
		case POWER_SUPPLY_PROP_TECHNOLOGY:
		val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
		break;
		case POWER_SUPPLY_PROP_CAPACITY_LEVEL:
		val->intval = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL;
		break;
		case POWER_SUPPLY_PROP_CAPACITY:
		val->intval = 50;
		break;
		case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG:
		case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW:
		val->intval = 3600;
		break;
		default:
		pr_info("%s: some properties deliberately report errors.\n",
		__func__);
		return -EINVAL;
		}
		return 0;
		}

		static enum power_supply_property test_power_ac_props[] = {
		POWER_SUPPLY_PROP_ONLINE,
		};

		static enum power_supply_property test_power_battery_props[] = {
		POWER_SUPPLY_PROP_STATUS,
		POWER_SUPPLY_PROP_CHARGE_TYPE,
		POWER_SUPPLY_PROP_HEALTH,
		POWER_SUPPLY_PROP_TECHNOLOGY,
		POWER_SUPPLY_PROP_CHARGE_FULL,
		POWER_SUPPLY_PROP_CHARGE_EMPTY,
		POWER_SUPPLY_PROP_CAPACITY,
		POWER_SUPPLY_PROP_CAPACITY_LEVEL,
		POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG,
		POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
		POWER_SUPPLY_PROP_MODEL_NAME,
		POWER_SUPPLY_PROP_MANUFACTURER,
		POWER_SUPPLY_PROP_SERIAL_NUMBER,
		};

		static char *test_power_ac_supplied_to[] = {
		"test_battery",
		};

		static struct power_supply test_power_supplies[] = {
		{
		.name = "test_ac",
		.type = POWER_SUPPLY_TYPE_MAINS,
		.supplied_to = test_power_ac_supplied_to,
		.num_supplicants = ARRAY_SIZE(test_power_ac_supplied_to),
		.properties = test_power_ac_props,
		.num_properties = ARRAY_SIZE(test_power_ac_props),
		.get_property = test_power_get_ac_property,
		}, {
		.name = "test_battery",
		.type = POWER_SUPPLY_TYPE_BATTERY,
		.properties = test_power_battery_props,
		.num_properties = ARRAY_SIZE(test_power_battery_props),
		.get_property = test_power_get_battery_property,
		},
		};

		static int __init test_power_init(void)
		{
		int i;
		int ret;

		for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++) {
		ret = power_supply_register(NULL, &test_power_supplies[i]);
		if (ret) {
		pr_err("%s: failed to register %s\n", __func__,
		test_power_supplies[i].name);
		goto failed;
		}
		}

		return 0;
		failed:
		while (--i >= 0)
		power_supply_unregister(&test_power_supplies[i]);
		return ret;
		}
		module_init(test_power_init);

		static void __exit test_power_exit(void)
		{
		int i;

		/* Let's see how we handle changes... */
		test_power_ac_online = 0;
		test_power_battery_status = POWER_SUPPLY_STATUS_DISCHARGING;
		for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++)
		power_supply_changed(&test_power_supplies[i]);
		pr_info("%s: 'changed' event sent, sleeping for 10 seconds...\n",
		__func__);
		ssleep(10);

		for (i = 0; i < ARRAY_SIZE(test_power_supplies); i++)
		power_supply_unregister(&test_power_supplies[i]);
		}
		module_exit(test_power_exit);

		MODULE_DESCRIPTION("Power supply driver for testing");
		MODULE_AUTHOR("Anton Vorontsov <cbouatmailru@gmail.com>");
		MODULE_LICENSE("GPL");