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/*
* Copyright (C) 2012 Spreadtrum Communications Inc.
*
* 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.
*/
#ifdef SPRDBAT_TWO_CHARGE_CHANNEL
#include <linux/kernel.h>
#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 <asm/io.h>
#include <linux/hrtimer.h>
#include <linux/spinlock.h>
#include <linux/gpio.h>
#include <linux/irq.h>
#include <linux/wakelock.h>
#include <linux/delay.h>
#include <mach/hardware.h>
#include <mach/adi.h>
#include <mach/adc.h>
#include <mach/gpio.h>
#include <linux/device.h>
#include <linux/slab.h>
#include <linux/jiffies.h>
#include "sprd_battery.h"
#include <mach/usb.h>
struct sprdchg_drivier_data_ext {
uint32_t gpio_vchg_ovi;
uint32_t irq_vchg_ovi;
uint32_t gpio_charge_en;
uint32_t gpio_charge_done;
struct work_struct ovi_irq_work;
};
static struct sprdchg_drivier_data_ext sprdchg_ext_ic;
int sprdchg_is_chg_done_ext(void)
{
return gpio_get_value(sprdchg_ext_ic.gpio_charge_done);
}
void sprdchg_start_charge_ext(void)
{
gpio_set_value(sprdchg_ext_ic.gpio_charge_en, 0);
}
void sprdchg_stop_charge_ext(void)
{
gpio_set_value(sprdchg_ext_ic.gpio_charge_en, 1);
}
void sprdchg_open_ovi_fun_ext(void)
{
irq_set_irq_type(sprdchg_ext_ic.irq_vchg_ovi, IRQ_TYPE_LEVEL_HIGH);
enable_irq(sprdchg_ext_ic.irq_vchg_ovi);
}
void sprdchg_close_ovi_fun_ext(void)
{
disable_irq_nosync(sprdchg_ext_ic.irq_vchg_ovi);
}
static void sprdchg_ovi_irq_works_ext(struct work_struct *work)
{
int value;
value = gpio_get_value(sprdchg_ext_ic.gpio_vchg_ovi);
if (value) {
sprdbat_charge_event_ext(SPRDBAT_CHG_EVENT_EXT_OVI);
} else {
sprdbat_charge_event_ext(SPRDBAT_CHG_EVENT_EXT_OVI_RESTART);
}
}
static __used irqreturn_t sprdchg_vchg_ovi_irq_ext(int irq, void *dev_id)
{
int value;
value = gpio_get_value(sprdchg_ext_ic.gpio_vchg_ovi);
if (value) {
printk("sprdchg_vchg_ovi_irq_ext ovi high\n");
irq_set_irq_type(sprdchg_ext_ic.irq_vchg_ovi, IRQ_TYPE_LEVEL_LOW);
} else {
printk("sprdchg_vchg_ovi_irq_ext ovi low\n");
irq_set_irq_type(sprdchg_ext_ic.irq_vchg_ovi, IRQ_TYPE_LEVEL_HIGH);
}
schedule_work(&sprdchg_ext_ic.ovi_irq_work);
return IRQ_HANDLED;
}
int sprdchg_charge_init_ext(struct platform_device *pdev)
{
int ret = -ENODEV;
struct resource *res = NULL;
res = platform_get_resource(pdev, IORESOURCE_IO, 3);
sprdchg_ext_ic.gpio_charge_done = res->start;
res = platform_get_resource(pdev, IORESOURCE_IO, 4);
sprdchg_ext_ic.gpio_charge_en = res->start;
res = platform_get_resource(pdev, IORESOURCE_IO, 5);
sprdchg_ext_ic.gpio_vchg_ovi = res->start;
gpio_request(sprdchg_ext_ic.gpio_vchg_ovi, "vchg_ovi_ext");
gpio_direction_input(sprdchg_ext_ic.gpio_vchg_ovi);
sprdchg_ext_ic.irq_vchg_ovi = gpio_to_irq(sprdchg_ext_ic.gpio_vchg_ovi);
set_irq_flags(sprdchg_ext_ic.irq_vchg_ovi, IRQF_VALID | IRQF_NOAUTOEN);
ret = request_irq(sprdchg_ext_ic.irq_vchg_ovi, sprdchg_vchg_ovi_irq_ext,
IRQF_NO_SUSPEND, "sprdbat_vchg_ovi_ext", NULL);
INIT_WORK(&sprdchg_ext_ic.ovi_irq_work, sprdchg_ovi_irq_works_ext);
gpio_request(sprdchg_ext_ic.gpio_charge_done, "chg_done_ext");
gpio_direction_input(sprdchg_ext_ic.gpio_charge_done);
gpio_request(sprdchg_ext_ic.gpio_charge_en, "charge_en_ext");
gpio_direction_output(sprdchg_ext_ic.gpio_charge_en, 1);
sprdchg_stop_charge_ext();
return ret;
}
void sprdchg_chg_monitor_cb_ext(void *data)
{
return;
}
#endif /* */
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