mirror of
https://github.com/AetherDroid/android_kernel_samsung_on5xelte.git
synced 2025-09-09 01:28:05 -04:00
Fixed MTP to work with TWRP
This commit is contained in:
awab228
commit
f6dfaef42e
50820 changed files with 20846062 additions and 0 deletions
236
drivers/power/goldfish_battery.c
Normal file
236
drivers/power/goldfish_battery.c
Normal file
|
|
@ -0,0 +1,236 @@
|
|||
/*
|
||||
* Power supply driver for the goldfish emulator
|
||||
*
|
||||
* Copyright (C) 2008 Google, Inc.
|
||||
* Copyright (C) 2012 Intel, Inc.
|
||||
* Copyright (C) 2013 Intel, Inc.
|
||||
* Author: Mike Lockwood <lockwood@android.com>
|
||||
*
|
||||
* This software is licensed under the terms of the GNU General Public
|
||||
* License version 2, as published by the Free Software Foundation, and
|
||||
* may be copied, distributed, and modified under those terms.
|
||||
*
|
||||
* 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.
|
||||
*/
|
||||
|
||||
#include <linux/module.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/power_supply.h>
|
||||
#include <linux/types.h>
|
||||
#include <linux/pci.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/io.h>
|
||||
|
||||
struct goldfish_battery_data {
|
||||
void __iomem *reg_base;
|
||||
int irq;
|
||||
spinlock_t lock;
|
||||
|
||||
struct power_supply battery;
|
||||
struct power_supply ac;
|
||||
};
|
||||
|
||||
#define GOLDFISH_BATTERY_READ(data, addr) \
|
||||
(readl(data->reg_base + addr))
|
||||
#define GOLDFISH_BATTERY_WRITE(data, addr, x) \
|
||||
(writel(x, data->reg_base + addr))
|
||||
|
||||
/*
|
||||
* Temporary variable used between goldfish_battery_probe() and
|
||||
* goldfish_battery_open().
|
||||
*/
|
||||
static struct goldfish_battery_data *battery_data;
|
||||
|
||||
enum {
|
||||
/* status register */
|
||||
BATTERY_INT_STATUS = 0x00,
|
||||
/* set this to enable IRQ */
|
||||
BATTERY_INT_ENABLE = 0x04,
|
||||
|
||||
BATTERY_AC_ONLINE = 0x08,
|
||||
BATTERY_STATUS = 0x0C,
|
||||
BATTERY_HEALTH = 0x10,
|
||||
BATTERY_PRESENT = 0x14,
|
||||
BATTERY_CAPACITY = 0x18,
|
||||
|
||||
BATTERY_STATUS_CHANGED = 1U << 0,
|
||||
AC_STATUS_CHANGED = 1U << 1,
|
||||
BATTERY_INT_MASK = BATTERY_STATUS_CHANGED | AC_STATUS_CHANGED,
|
||||
};
|
||||
|
||||
|
||||
static int goldfish_ac_get_property(struct power_supply *psy,
|
||||
enum power_supply_property psp,
|
||||
union power_supply_propval *val)
|
||||
{
|
||||
struct goldfish_battery_data *data = container_of(psy,
|
||||
struct goldfish_battery_data, ac);
|
||||
int ret = 0;
|
||||
|
||||
switch (psp) {
|
||||
case POWER_SUPPLY_PROP_ONLINE:
|
||||
val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_AC_ONLINE);
|
||||
break;
|
||||
default:
|
||||
ret = -EINVAL;
|
||||
break;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int goldfish_battery_get_property(struct power_supply *psy,
|
||||
enum power_supply_property psp,
|
||||
union power_supply_propval *val)
|
||||
{
|
||||
struct goldfish_battery_data *data = container_of(psy,
|
||||
struct goldfish_battery_data, battery);
|
||||
int ret = 0;
|
||||
|
||||
switch (psp) {
|
||||
case POWER_SUPPLY_PROP_STATUS:
|
||||
val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_STATUS);
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_HEALTH:
|
||||
val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_HEALTH);
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_PRESENT:
|
||||
val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_PRESENT);
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_TECHNOLOGY:
|
||||
val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
|
||||
break;
|
||||
case POWER_SUPPLY_PROP_CAPACITY:
|
||||
val->intval = GOLDFISH_BATTERY_READ(data, BATTERY_CAPACITY);
|
||||
break;
|
||||
default:
|
||||
ret = -EINVAL;
|
||||
break;
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static enum power_supply_property goldfish_battery_props[] = {
|
||||
POWER_SUPPLY_PROP_STATUS,
|
||||
POWER_SUPPLY_PROP_HEALTH,
|
||||
POWER_SUPPLY_PROP_PRESENT,
|
||||
POWER_SUPPLY_PROP_TECHNOLOGY,
|
||||
POWER_SUPPLY_PROP_CAPACITY,
|
||||
};
|
||||
|
||||
static enum power_supply_property goldfish_ac_props[] = {
|
||||
POWER_SUPPLY_PROP_ONLINE,
|
||||
};
|
||||
|
||||
static irqreturn_t goldfish_battery_interrupt(int irq, void *dev_id)
|
||||
{
|
||||
unsigned long irq_flags;
|
||||
struct goldfish_battery_data *data = dev_id;
|
||||
uint32_t status;
|
||||
|
||||
spin_lock_irqsave(&data->lock, irq_flags);
|
||||
|
||||
/* read status flags, which will clear the interrupt */
|
||||
status = GOLDFISH_BATTERY_READ(data, BATTERY_INT_STATUS);
|
||||
status &= BATTERY_INT_MASK;
|
||||
|
||||
if (status & BATTERY_STATUS_CHANGED)
|
||||
power_supply_changed(&data->battery);
|
||||
if (status & AC_STATUS_CHANGED)
|
||||
power_supply_changed(&data->ac);
|
||||
|
||||
spin_unlock_irqrestore(&data->lock, irq_flags);
|
||||
return status ? IRQ_HANDLED : IRQ_NONE;
|
||||
}
|
||||
|
||||
|
||||
static int goldfish_battery_probe(struct platform_device *pdev)
|
||||
{
|
||||
int ret;
|
||||
struct resource *r;
|
||||
struct goldfish_battery_data *data;
|
||||
|
||||
data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL);
|
||||
if (data == NULL)
|
||||
return -ENOMEM;
|
||||
|
||||
spin_lock_init(&data->lock);
|
||||
|
||||
data->battery.properties = goldfish_battery_props;
|
||||
data->battery.num_properties = ARRAY_SIZE(goldfish_battery_props);
|
||||
data->battery.get_property = goldfish_battery_get_property;
|
||||
data->battery.name = "battery";
|
||||
data->battery.type = POWER_SUPPLY_TYPE_BATTERY;
|
||||
|
||||
data->ac.properties = goldfish_ac_props;
|
||||
data->ac.num_properties = ARRAY_SIZE(goldfish_ac_props);
|
||||
data->ac.get_property = goldfish_ac_get_property;
|
||||
data->ac.name = "ac";
|
||||
data->ac.type = POWER_SUPPLY_TYPE_MAINS;
|
||||
|
||||
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
||||
if (r == NULL) {
|
||||
dev_err(&pdev->dev, "platform_get_resource failed\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
data->reg_base = devm_ioremap(&pdev->dev, r->start, resource_size(r));
|
||||
if (data->reg_base == NULL) {
|
||||
dev_err(&pdev->dev, "unable to remap MMIO\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
|
||||
data->irq = platform_get_irq(pdev, 0);
|
||||
if (data->irq < 0) {
|
||||
dev_err(&pdev->dev, "platform_get_irq failed\n");
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
ret = devm_request_irq(&pdev->dev, data->irq, goldfish_battery_interrupt,
|
||||
IRQF_SHARED, pdev->name, data);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = power_supply_register(&pdev->dev, &data->ac);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = power_supply_register(&pdev->dev, &data->battery);
|
||||
if (ret) {
|
||||
power_supply_unregister(&data->ac);
|
||||
return ret;
|
||||
}
|
||||
|
||||
platform_set_drvdata(pdev, data);
|
||||
battery_data = data;
|
||||
|
||||
GOLDFISH_BATTERY_WRITE(data, BATTERY_INT_ENABLE, BATTERY_INT_MASK);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int goldfish_battery_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct goldfish_battery_data *data = platform_get_drvdata(pdev);
|
||||
|
||||
power_supply_unregister(&data->battery);
|
||||
power_supply_unregister(&data->ac);
|
||||
battery_data = NULL;
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct platform_driver goldfish_battery_device = {
|
||||
.probe = goldfish_battery_probe,
|
||||
.remove = goldfish_battery_remove,
|
||||
.driver = {
|
||||
.name = "goldfish-battery"
|
||||
}
|
||||
};
|
||||
module_platform_driver(goldfish_battery_device);
|
||||
|
||||
MODULE_AUTHOR("Mike Lockwood lockwood@android.com");
|
||||
MODULE_LICENSE("GPL");
|
||||
MODULE_DESCRIPTION("Battery driver for the Goldfish emulator");
|
||||
Loading…
Add table
Add a link
Reference in a new issue