litmus-rt.git - The LITMUS^RT kernel.

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Diffstat (limited to 'include/linux/raid/md.h')

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/* * Power supply driver for testing. * * Copyright 2010 Anton Vorontsov <cbouatmailru@gmail.com> * * Dynamic module parameter code from the Virtual Battery Driver * Copyright (C) 2008 Pylone, Inc. * By: Masashi YOKOTA <yokota@pylone.jp> * Originally found here: * http://downloads.pylone.jp/src/virtual_battery/virtual_battery-0.0.1.tar.bz2 * * 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 ac_online = 1; static int usb_online = 1; static int battery_status = POWER_SUPPLY_STATUS_DISCHARGING; static int battery_health = POWER_SUPPLY_HEALTH_GOOD; static int battery_present = 1; /* true */ static int battery_technology = POWER_SUPPLY_TECHNOLOGY_LION; static int battery_capacity = 50; static int battery_voltage = 3300; static bool module_initialized; 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 = ac_online; break; default: return -EINVAL; } return 0; } static int test_power_get_usb_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { switch (psp) { case POWER_SUPPLY_PROP_ONLINE: val->intval = usb_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 = battery_status; break; case POWER_SUPPLY_PROP_CHARGE_TYPE: val->intval = POWER_SUPPLY_CHARGE_TYPE_FAST; break; case POWER_SUPPLY_PROP_HEALTH: val->intval = battery_health; break; case POWER_SUPPLY_PROP_PRESENT: val->intval = battery_present; break; case POWER_SUPPLY_PROP_TECHNOLOGY: val->intval = battery_technology; break; case POWER_SUPPLY_PROP_CAPACITY_LEVEL: val->intval = POWER_SUPPLY_CAPACITY_LEVEL_NORMAL; break; case POWER_SUPPLY_PROP_CAPACITY: case POWER_SUPPLY_PROP_CHARGE_NOW: val->intval = battery_capacity; break; case POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN: case POWER_SUPPLY_PROP_CHARGE_FULL: val->intval = 100; break; case POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG: case POWER_SUPPLY_PROP_TIME_TO_FULL_NOW: val->intval = 3600; break; case POWER_SUPPLY_PROP_TEMP: val->intval = 26; break; case POWER_SUPPLY_PROP_VOLTAGE_NOW: val->intval = battery_voltage; 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_PRESENT, POWER_SUPPLY_PROP_TECHNOLOGY, POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, POWER_SUPPLY_PROP_CHARGE_FULL, POWER_SUPPLY_PROP_CHARGE_NOW, 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, POWER_SUPPLY_PROP_TEMP, POWER_SUPPLY_PROP_VOLTAGE_NOW, }; 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, }, { .name = "test_usb", .type = POWER_SUPPLY_TYPE_USB, .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_usb_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; } } module_initialized = true; 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... */ ac_online = 0; usb_online = 0; 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_initialized = false; } module_exit(test_power_exit); #define MAX_KEYLENGTH 256 struct battery_property_map { int value; char const *key; }; static struct battery_property_map map_ac_online[] = { { 0, "off" }, { 1, "on" }, { -1, NULL }, }; static struct battery_property_map map_status[] = { { POWER_SUPPLY_STATUS_CHARGING, "charging" }, { POWER_SUPPLY_STATUS_DISCHARGING, "discharging" }, { POWER_SUPPLY_STATUS_NOT_CHARGING, "not-charging" }, { POWER_SUPPLY_STATUS_FULL, "full" }, { -1, NULL }, }; static struct battery_property_map map_health[] = { { POWER_SUPPLY_HEALTH_GOOD, "good" }, { POWER_SUPPLY_HEALTH_OVERHEAT, "overheat" }, { POWER_SUPPLY_HEALTH_DEAD, "dead" }, { POWER_SUPPLY_HEALTH_OVERVOLTAGE, "overvoltage" }, { POWER_SUPPLY_HEALTH_UNSPEC_FAILURE, "failure" }, { -1, NULL }, }; static struct battery_property_map map_present[] = { { 0, "false" }, { 1, "true" }, { -1, NULL }, }; static struct battery_property_map map_technology[] = { { POWER_SUPPLY_TECHNOLOGY_NiMH, "NiMH" }, { POWER_SUPPLY_TECHNOLOGY_LION, "LION" }, { POWER_SUPPLY_TECHNOLOGY_LIPO, "LIPO" }, { POWER_SUPPLY_TECHNOLOGY_LiFe, "LiFe" }, { POWER_SUPPLY_TECHNOLOGY_NiCd, "NiCd" }, { POWER_SUPPLY_TECHNOLOGY_LiMn, "LiMn" }, { -1, NULL }, }; static int map_get_value(struct battery_property_map *map, const char *key, int def_val) { char buf[MAX_KEYLENGTH]; int cr; strncpy(buf, key, MAX_KEYLENGTH); buf[MAX_KEYLENGTH-1] = '\0'; cr = strnlen(buf, MAX_KEYLENGTH) - 1; if (buf[cr] == '\n') buf[cr] = '\0'; while (map->key) { if (strncasecmp(map->key, buf, MAX_KEYLENGTH) == 0) return map->value; map++; } return def_val; } static const char *map_get_key(struct battery_property_map *map, int value, const char *def_key) { while (map->key) { if (map->value == value) return map->key; map++; } return def_key; } static inline void signal_power_supply_changed(struct power_supply *psy) { if (module_initialized) power_supply_changed(psy); } static int param_set_ac_online(const char *key, const struct kernel_param *kp) { ac_online = map_get_value(map_ac_online, key, ac_online); signal_power_supply_changed(&test_power_supplies[0]); return 0; } static int param_get_ac_online(char *buffer, const struct kernel_param *kp) { strcpy(buffer, map_get_key(map_ac_online, ac_online, "unknown")); return strlen(buffer); } static int param_set_usb_online(const char *key, const struct kernel_param *kp) { usb_online = map_get_value(map_ac_online, key, usb_online); signal_power_supply_changed(&test_power_supplies[2]); return 0; }


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