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android_kernel_cmhtcleo/arch/arm/mach-msm/htc_battery.c
Markinus e34adb00cb Add EVOs source as default
2010-08-27 11:19:57 +02:00

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/* arch/arm/mach-msm/htc_battery.c
*
* Copyright (C) 2008 HTC Corporation.
* Copyright (C) 2008 Google, 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.
*
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/err.h>
#include <linux/power_supply.h>
#include <linux/platform_device.h>
#include <linux/debugfs.h>
#include <linux/wakelock.h>
#include <asm/gpio.h>
#include <mach/msm_rpcrouter.h>
#include <mach/board.h>
#include <asm/mach-types.h>
#include <mach/board_htc.h>
#include <mach/msm_fb.h> /* Jay, to register display notifier */
#include <mach/htc_battery.h>
#include <linux/rtc.h>
#ifdef CONFIG_HTC_BATTCHG_SMEM
#include "smd_private.h"
#endif
#if defined(CONFIG_TROUT_BATTCHG_DOCK)
#include <mach/htc_one_wire.h>
#endif
#ifdef CONFIG_BATTERY_DS2784
#include <linux/ds2784_battery.h>
#elif CONFIG_BATTERY_DS2746
#include <linux/ds2746_battery.h>
#endif
#include <linux/smb329.h>
static struct wake_lock vbus_wake_lock;
enum {
HTC_BATT_DEBUG_M2A_RPC = 1U << 0,
HTC_BATT_DEBUG_A2M_RPC = 1U << 1,
HTC_BATT_DEBUG_UEVT = 1U << 2,
HTC_BATT_DEBUG_USER_QUERY = 1U << 3,
HTC_BATT_DEBUG_USB_NOTIFY = 1U << 4,
HTC_BATT_DEBUG_SMEM = 1U << 5,
};
static int htc_batt_debug_mask = HTC_BATT_DEBUG_M2A_RPC | HTC_BATT_DEBUG_A2M_RPC
| HTC_BATT_DEBUG_UEVT | HTC_BATT_DEBUG_USB_NOTIFY | HTC_BATT_DEBUG_SMEM;
module_param_named(debug_mask, htc_batt_debug_mask, int, S_IRUGO | S_IWUSR | S_IWGRP);
#define BATT_LOG(x...) do { \
struct timespec ts; \
struct rtc_time tm; \
getnstimeofday(&ts); \
rtc_time_to_tm(ts.tv_sec, &tm); \
printk(KERN_INFO "batt: " x); \
printk(" at %lld (%d-%02d-%02d %02d:%02d:%02d.%09lu UTC)\n", \
ktime_to_ns(ktime_get()), tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, \
tm.tm_hour, tm.tm_min, tm.tm_sec, ts.tv_nsec); \
} while (0)
#define BATT_ERR(x...) do { \
struct timespec ts; \
struct rtc_time tm; \
getnstimeofday(&ts); \
rtc_time_to_tm(ts.tv_sec, &tm); \
printk(KERN_ERR "batt: err:" x); \
printk(" at %lld (%d-%02d-%02d %02d:%02d:%02d.%09lu UTC)\n", \
ktime_to_ns(ktime_get()), tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, \
tm.tm_hour, tm.tm_min, tm.tm_sec, ts.tv_nsec); \
} while (0)
/* rpc related */
#define APP_BATT_PDEV_NAME "rs30100001:00000000"
#define APP_BATT_PROG 0x30100001
#define APP_BATT_VER MSM_RPC_VERS(0,0)
#define HTC_PROCEDURE_BATTERY_NULL 0
#define HTC_PROCEDURE_GET_BATT_LEVEL 1
#define HTC_PROCEDURE_GET_BATT_INFO 2
#define HTC_PROCEDURE_GET_CABLE_STATUS 3
#define HTC_PROCEDURE_SET_BATT_DELTA 4
#define HTC_PROCEDURE_CHARGER_SWITCH 6
#define HTC_PROCEDURE_SET_FULL_LEVEL 7
#define HTC_PROCEDURE_GET_USB_ACCESSORY_ADC_LEVEL 10
const char *charger_tags[] = {"none", "USB", "AC"};
struct htc_battery_info {
int device_id;
int present;
unsigned long update_time;
/* lock to protect the battery info */
struct mutex lock;
/* lock held while calling the arm9 to query the battery info */
struct mutex rpc_lock;
struct battery_info_reply rep;
int (*func_show_batt_attr)(struct device_attribute *attr, char *buf);
int gpio_mbat_in;
int gpio_usb_id;
int gpio_mchg_en_n;
int gpio_iset;
int guage_driver;
int m2a_cable_detect;
int charger;
};
static struct msm_rpc_endpoint *endpoint;
static struct htc_battery_info htc_batt_info;
/* Remove cache mechanism to prevent cable status not sync. */
static unsigned int cache_time;
static int htc_battery_initial = 0;
static int htc_full_level_flag = 0;
static enum power_supply_property htc_battery_properties[] = {
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 htc_power_properties[] = {
POWER_SUPPLY_PROP_ONLINE,
};
static char *supply_list[] = {
"battery",
};
/* HTC dedicated attributes */
static ssize_t htc_battery_show_property(struct device *dev,
struct device_attribute *attr,
char *buf);
static int htc_power_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val);
static int htc_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val);
static struct power_supply htc_power_supplies[] = {
{
.name = "battery",
.type = POWER_SUPPLY_TYPE_BATTERY,
.properties = htc_battery_properties,
.num_properties = ARRAY_SIZE(htc_battery_properties),
.get_property = htc_battery_get_property,
},
{
.name = "usb",
.type = POWER_SUPPLY_TYPE_USB,
.supplied_to = supply_list,
.num_supplicants = ARRAY_SIZE(supply_list),
.properties = htc_power_properties,
.num_properties = ARRAY_SIZE(htc_power_properties),
.get_property = htc_power_get_property,
},
{
.name = "ac",
.type = POWER_SUPPLY_TYPE_MAINS,
.supplied_to = supply_list,
.num_supplicants = ARRAY_SIZE(supply_list),
.properties = htc_power_properties,
.num_properties = ARRAY_SIZE(htc_power_properties),
.get_property = htc_power_get_property,
},
};
static int update_batt_info(void);
static void usb_status_notifier_func(int online);
//static int g_usb_online;
static struct t_usb_status_notifier usb_status_notifier = {
.name = "htc_battery",
.func = usb_status_notifier_func,
};
/* Move cable detection/notification to standard PMIC RPC. */
static BLOCKING_NOTIFIER_HEAD(cable_status_notifier_list);
int register_notifier_cable_status(struct notifier_block *nb)
{
return blocking_notifier_chain_register(&cable_status_notifier_list, nb);
}
int unregister_notifier_cable_status(struct notifier_block *nb)
{
return blocking_notifier_chain_unregister(&cable_status_notifier_list, nb);
}
/* -------------------------------------------------------------------------- */
/* For sleep charging screen. */
static int zcharge_enabled;
static int htc_is_zcharge_enabled(void)
{
return zcharge_enabled;
}
static int __init enable_zcharge_setup(char *str)
{
int cal = simple_strtol(str, NULL, 0);
zcharge_enabled = cal;
return 1;
}
__setup("enable_zcharge=", enable_zcharge_setup);
static int htc_is_cable_in(void)
{
if (!htc_batt_info.update_time) {
BATT_ERR("%s: battery driver hasn't been initialized yet.", __func__);
return -EINVAL;
}
return (htc_batt_info.rep.charging_source != CHARGER_BATTERY) ? 1 : 0;
}
/**
* htc_power_policy - check if it obeys our policy
* return 0 for no errors, to indicate it follows policy.
* non zero otherwise.
**/
static int __htc_power_policy(void)
{
if (!zcharge_enabled)
return 0;
if (htc_is_cable_in())
return 1;
return 0;
}
/*
* Jay, 7/1/09'
*/
static int htc_power_policy(struct notifier_block *nfb,
unsigned long action, void *ignored)
{
int rc;
switch (action) {
case NOTIFY_POWER:
pr_info("%s: enter.\n", __func__);
rc = __htc_power_policy();
if (rc)
return NOTIFY_STOP;
else
return NOTIFY_OK;
}
return NOTIFY_DONE; /* we did not care other action here */
}
unsigned int batt_get_status(enum power_supply_property psp)
{
union power_supply_propval val;
if (update_batt_info())
return -EINVAL;
switch (psp) {
case POWER_SUPPLY_PROP_CAPACITY:
mutex_lock(&htc_batt_info.lock);
val.intval = htc_batt_info.rep.level;
mutex_unlock(&htc_batt_info.lock);
/* prevent shutdown before battery driver ready. */
if (htc_batt_info.device_id == 0)
val.intval = 55; /* 55 == ?? */
break;
case POWER_SUPPLY_PROP_TEMP:
mutex_lock(&htc_batt_info.lock);
val.intval = htc_batt_info.rep.batt_temp;
mutex_unlock(&htc_batt_info.lock);
break;
case POWER_SUPPLY_PROP_VOLTAGE_NOW:
mutex_lock(&htc_batt_info.lock);
val.intval = htc_batt_info.rep.batt_vol;
mutex_unlock(&htc_batt_info.lock);
break;
default:
return -EINVAL;
}
return val.intval;
}
#if defined(CONFIG_DEBUG_FS)
static int htc_battery_set_charging(enum batt_ctl_t ctl);
static int batt_debug_set(void *data, u64 val)
{
return htc_battery_set_charging((enum batt_ctl_t) val);
}
static int batt_debug_get(void *data, u64 *val)
{
return -ENOSYS;
}
DEFINE_SIMPLE_ATTRIBUTE(batt_debug_fops, batt_debug_get, batt_debug_set, "%llu\n");
static int __init batt_debug_init(void)
{
struct dentry *dent;
dent = debugfs_create_dir("htc_battery", 0);
if (IS_ERR(dent))
return PTR_ERR(dent);
debugfs_create_file("charger_state", 0644, dent, NULL, &batt_debug_fops);
return 0;
}
device_initcall(batt_debug_init);
#endif
static int init_batt_gpio(void)
{
if (htc_batt_info.gpio_mbat_in > 0 &&
gpio_request(htc_batt_info.gpio_mbat_in, "batt_detect") < 0)
goto gpio_failed;
if (htc_batt_info.gpio_mchg_en_n > 0 &&
gpio_request(htc_batt_info.gpio_mchg_en_n, "charger_en") < 0)
goto gpio_failed;
if (htc_batt_info.gpio_iset > 0 &&
gpio_request(htc_batt_info.gpio_iset, "charge_current") < 0)
goto gpio_failed;
return 0;
gpio_failed:
return -EINVAL;
}
/*
* battery_charging_ctrl - battery charing control.
* @ctl: battery control command
*
*/
int battery_charging_ctrl(enum batt_ctl_t ctl)
{
int result = 0;
switch (ctl) {
case DISABLE:
BATT_LOG("charger OFF");
/* 0 for enable; 1 disable */
result = gpio_direction_output(htc_batt_info.gpio_mchg_en_n, 1);
break;
case ENABLE_SLOW_CHG:
BATT_LOG("charger ON (SLOW)");
result = gpio_direction_output(htc_batt_info.gpio_iset, 0);
result = gpio_direction_output(htc_batt_info.gpio_mchg_en_n, 0);
break;
case ENABLE_FAST_CHG:
BATT_LOG("charger ON (FAST)");
result = gpio_direction_output(htc_batt_info.gpio_iset, 1);
result = gpio_direction_output(htc_batt_info.gpio_mchg_en_n, 0);
break;
default:
BATT_ERR("%s: Not supported battery ctr called.!", __func__);
result = -EINVAL;
break;
}
return result;
}
static int htc_battery_set_charging(enum batt_ctl_t ctl)
{
int rc;
if ((rc = battery_charging_ctrl(ctl)) < 0)
goto result;
if (!htc_battery_initial) {
htc_batt_info.rep.charging_enabled = ctl & 0x3;
} else {
mutex_lock(&htc_batt_info.lock);
htc_batt_info.rep.charging_enabled = ctl & 0x3;
mutex_unlock(&htc_batt_info.lock);
}
result:
return rc;
}
static int htc_battery_status_update(u32 curr_level)
{
int notify;
if (!htc_battery_initial)
return 0;
mutex_lock(&htc_batt_info.lock);
notify = (htc_batt_info.rep.level != curr_level);
htc_batt_info.rep.level = curr_level;
mutex_unlock(&htc_batt_info.lock);
#if 0
if (notify) {
power_supply_changed(&htc_power_supplies[CHARGER_BATTERY]);
if (htc_batt_debug_mask & HTC_BATT_DEBUG_UEVT)
BATT_LOG("power_supply_changed: battery");
}
#else
/* we don't check level here for charging over temp RPC call */
power_supply_changed(&htc_power_supplies[CHARGER_BATTERY]);
if (htc_batt_debug_mask & HTC_BATT_DEBUG_UEVT)
BATT_LOG("batt:power_supply_changed: battery");
#endif
return 0;
}
static void update_wake_lock(int status)
{
if (status == CHARGER_USB) {
wake_lock(&vbus_wake_lock);
} else if (__htc_power_policy()) {
/* Lock suspend for DOPOD charging animation */
wake_lock(&vbus_wake_lock);
} else {
/* give userspace some time to see the uevent and update
* LED state or whatnot...
*/
wake_lock_timeout(&vbus_wake_lock, HZ * 5);
}
}
#ifdef CONFIG_HTC_BATTCHG_SMEM
static int htc_set_smem_cable_type(u32 cable_type);
#else
static int htc_set_smem_cable_type(u32 cable_type) { return -1; }
#endif
#if 1 //JH //this is for packet filter (notify port list while USB in/out)
int update_port_list_charging_state(int enable);
#endif
static int htc_cable_status_update(int status)
{
int rc = 0;
// unsigned last_source;
if (!htc_battery_initial)
return 0;
if (status < CHARGER_BATTERY || status > CHARGER_AC) {
BATT_ERR("%s: Not supported cable status received!", __func__);
return -EINVAL;
}
mutex_lock(&htc_batt_info.lock);
#if 1
pr_info("batt: %s: %d -> %d\n", __func__, htc_batt_info.rep.charging_source, status);
if (status == htc_batt_info.rep.charging_source) {
/* When cable overvoltage(5V => 7V) A9 will report the same source, so only sent the uevent */
if (status == CHARGER_USB) {
power_supply_changed(&htc_power_supplies[CHARGER_USB]);
if (htc_batt_debug_mask & HTC_BATT_DEBUG_UEVT)
BATT_LOG("batt:(htc_cable_status_update)power_supply_changed: OverVoltage");
}
mutex_unlock(&htc_batt_info.lock);
return 0;
}
/* TODO: replace charging_source to vbus_present */
htc_batt_info.rep.charging_source = status;
/* ARM9 should know the status it notifies,
* keep this code for old projects. */
/* htc_set_smem_cable_type(status); */
update_wake_lock(status);
/*ARM9 report CHARGER_AC while plug in htc_adaptor which is identify by usbid*/
/*don't need to notify usb driver*/
if ((htc_batt_info.guage_driver == GUAGE_MODEM) && (status == CHARGER_AC)) {
htc_set_smem_cable_type(CHARGER_AC);
power_supply_changed(&htc_power_supplies[CHARGER_AC]);
} else
msm_hsusb_set_vbus_state(!!htc_batt_info.rep.charging_source);
/* TODO: use power_supply_change to notify battery drivers. */
if (htc_batt_info.guage_driver == GUAGE_DS2784 ||
htc_batt_info.guage_driver == GUAGE_DS2746)
blocking_notifier_call_chain(&cable_status_notifier_list,
status, NULL);
if (status == CHARGER_BATTERY) {
htc_set_smem_cable_type(CHARGER_BATTERY);
power_supply_changed(&htc_power_supplies[CHARGER_BATTERY]);
if (htc_batt_debug_mask & HTC_BATT_DEBUG_UEVT)
BATT_LOG("batt:(htc_cable_status_update)power_supply_changed: battery");
}
#else
/* A9 reports USB charging when helf AC cable in and China AC charger. */
/* notify userspace USB charging first,
and then usb driver will notify AC while D+/D- Line short. */
/* China AC detection:
* Write SMEM as USB first, and update SMEM to AC
* if receives AC notification */
last_source = htc_batt_info.rep.charging_source;
if (status == CHARGER_USB && g_usb_online == 0) {
htc_set_smem_cable_type(CHARGER_USB);
htc_batt_info.rep.charging_source = CHARGER_USB;
} else {
htc_set_smem_cable_type(status);
htc_batt_info.rep.charging_source = status;
/* usb driver will not notify usb offline. */
if (status == CHARGER_BATTERY && g_usb_online != 0)
g_usb_online = 0;
}
msm_hsusb_set_vbus_state(status == CHARGER_USB);
if (htc_batt_info.guage_driver == GUAGE_DS2784 ||
htc_batt_info.guage_driver == GUAGE_DS2746)
blocking_notifier_call_chain(&cable_status_notifier_list,
htc_batt_info.rep.charging_source, NULL);
if (htc_batt_info.rep.charging_source != last_source) {
#if 1 //JH //this is for packet filter (notify port list while USB in/out)
update_port_list_charging_state(!(htc_batt_info.rep.charging_source == CHARGER_BATTERY));
#endif
/* Lock suspend only when USB in for ADB or other USB functions. */
if (htc_batt_info.rep.charging_source == CHARGER_USB) {
wake_lock(&vbus_wake_lock);
} else if (__htc_power_policy()) {
/* Lock suspend for DOPOD charging animation */
wake_lock(&vbus_wake_lock);
} else {
if (htc_batt_info.rep.charging_source == CHARGER_AC
&& last_source == CHARGER_USB)
BATT_ERR("%s: USB->AC\n", __func__);
/* give userspace some time to see the uevent and update
* LED state or whatnot...
*/
wake_lock_timeout(&vbus_wake_lock, HZ * 5);
}
if (htc_batt_info.rep.charging_source == CHARGER_BATTERY || last_source == CHARGER_BATTERY)
power_supply_changed(&htc_power_supplies[CHARGER_BATTERY]);
if (htc_batt_info.rep.charging_source == CHARGER_USB || last_source == CHARGER_USB)
power_supply_changed(&htc_power_supplies[CHARGER_USB]);
if (htc_batt_info.rep.charging_source == CHARGER_AC || last_source == CHARGER_AC)
power_supply_changed(&htc_power_supplies[CHARGER_AC]);
if (htc_batt_debug_mask & HTC_BATT_DEBUG_UEVT)
BATT_LOG("power_supply_changed: %s -> %s",
charger_tags[last_source], charger_tags[htc_batt_info.rep.charging_source]);
}
#endif
mutex_unlock(&htc_batt_info.lock);
return rc;
}
#ifdef CONFIG_USB_ACCESSORY_DETECT_BY_ADC
int htc_get_usb_accessory_adc_level(uint32_t *buffer)
{
struct rpc_request_hdr req;
struct htc_get_usb_adc_value_rep {
struct rpc_reply_hdr hdr;
uint32_t adc_value;
} rep;
int rc;
printk(KERN_INFO "%s\n", __func__);
if (buffer == NULL) {
printk(KERN_INFO "%s: buffer null\n", __func__);
return -EINVAL;
}
rc = msm_rpc_call_reply(endpoint, HTC_PROCEDURE_GET_USB_ACCESSORY_ADC_LEVEL,
&req, sizeof(req),
&rep, sizeof(rep),
5 * HZ);
if (rc < 0) {
printk(KERN_INFO "%s: msm_rpc_call_reply fail\n", __func__);
return rc;
}
*buffer = be32_to_cpu(rep.adc_value);
printk(KERN_INFO "%s: adc = %d\n", __func__, *buffer);
return 0;
}
EXPORT_SYMBOL(htc_get_usb_accessory_adc_level);
#endif
/* A9 reports USB charging when helf AC cable in and China AC charger. */
/* notify userspace USB charging first,
and then usb driver will notify AC while D+/D- Line short. */
static void usb_status_notifier_func(int online)
{
#if 1
pr_info("batt:online=%d",online);
/* TODO: replace charging_source to usb_status */
htc_batt_info.rep.charging_source = online;
htc_set_smem_cable_type(htc_batt_info.rep.charging_source);
/* TODO: use power_supply_change to notify battery drivers. */
if (htc_batt_info.guage_driver == GUAGE_DS2784 || htc_batt_info.guage_driver == GUAGE_DS2746)
blocking_notifier_call_chain(&cable_status_notifier_list,
htc_batt_info.rep.charging_source, NULL);
power_supply_changed(&htc_power_supplies[CHARGER_AC]);
power_supply_changed(&htc_power_supplies[CHARGER_USB]);
power_supply_changed(&htc_power_supplies[CHARGER_BATTERY]);
update_wake_lock(htc_batt_info.rep.charging_source);
#else
mutex_lock(&htc_batt_info.lock);
if (htc_batt_debug_mask & HTC_BATT_DEBUG_USB_NOTIFY)
BATT_LOG("%s: online=%d, g_usb_online=%d", __func__, online, g_usb_online);
if (g_usb_online != online) {
g_usb_online = online;
if (online == CHARGER_AC && htc_batt_info.rep.charging_source == CHARGER_USB) {
mutex_unlock(&htc_batt_info.lock);
htc_cable_status_update(CHARGER_AC);
mutex_lock(&htc_batt_info.lock);
}
}
mutex_unlock(&htc_batt_info.lock);
#endif
}
static int htc_get_batt_info(struct battery_info_reply *buffer)
{
struct rpc_request_hdr req;
struct htc_get_batt_info_rep {
struct rpc_reply_hdr hdr;
struct battery_info_reply info;
} rep;
int rc;
if (buffer == NULL)
return -EINVAL;
rc = msm_rpc_call_reply(endpoint, HTC_PROCEDURE_GET_BATT_INFO,
&req, sizeof(req),
&rep, sizeof(rep),
5 * HZ);
if ( rc < 0 )
return rc;
mutex_lock(&htc_batt_info.lock);
buffer->batt_id = be32_to_cpu(rep.info.batt_id);
buffer->batt_vol = be32_to_cpu(rep.info.batt_vol);
buffer->batt_temp = be32_to_cpu(rep.info.batt_temp);
buffer->batt_current = be32_to_cpu(rep.info.batt_current);
buffer->level = be32_to_cpu(rep.info.level);
/* Move the rules of charging_source to cable_status_update. */
/* buffer->charging_source = be32_to_cpu(rep.info.charging_source); */
buffer->charging_enabled = be32_to_cpu(rep.info.charging_enabled);
buffer->full_bat = be32_to_cpu(rep.info.full_bat);
/* Over_vchg only update in SMEM from A9 */
/* buffer->over_vchg = be32_to_cpu(rep.info.over_vchg); */
mutex_unlock(&htc_batt_info.lock);
if (htc_batt_debug_mask & HTC_BATT_DEBUG_A2M_RPC)
BATT_LOG("A2M_RPC: get_batt_info: batt_id=%d, batt_vol=%d, batt_temp=%d, "
"batt_current=%d, level=%d, charging_source=%d, "
"charging_enabled=%d, full_bat=%d, over_vchg=%d",
buffer->batt_id, buffer->batt_vol, buffer->batt_temp,
buffer->batt_current, buffer->level, buffer->charging_source,
buffer->charging_enabled, buffer->full_bat, buffer->over_vchg);
return 0;
}
#ifdef CONFIG_HTC_BATTCHG_SMEM
struct htc_batt_info_full {
u32 batt_id;
u32 batt_vol;
u32 batt_vol_last;
u32 batt_temp;
s32 batt_current;
s32 batt_current_last;
u32 batt_discharge_current;
u32 VREF_2;
u32 VREF;
u32 ADC4096_VREF;
u32 Rtemp;
s32 Temp;
s32 Temp_last;
u32 pd_M;
u32 MBAT_pd;
s32 I_MBAT;
u32 pd_temp;
u32 percent_last;
u32 percent_update;
u32 dis_percent;
u32 vbus;
u32 usbid;
u32 charging_source;
u32 MBAT_IN;
u32 full_bat;
u32 eval_current;
u32 eval_current_last;
u32 charging_enabled;
u32 timeout;
u32 fullcharge;
u32 level;
u32 delta;
u32 chg_time;
s32 level_change;
u32 sleep_timer_count;
u32 OT_led_on;
u32 overloading_charge;
u32 a2m_cable_type;
u32 vchg; // VCHG => 0: Not, 1: In
u32 over_vchg; /*over voltage charger detection, 0:VCHG normal(below 6V) 1:VCHG over(upper 6V)*/
u32 reserve4;
u32 reserve5;
};
/* SMEM_BATT_INFO is allocated by A9 after first A2M RPC is sent. */
static struct htc_batt_info_full *smem_batt_info;
static int htc_get_batt_info_smem(struct battery_info_reply *buffer)
{
if (!smem_batt_info) {
smem_batt_info = smem_alloc(SMEM_BATT_INFO,
sizeof(struct htc_batt_info_full));
if (!smem_batt_info) {
BATT_ERR("battery SMEM allocate fail, "
"use RPC instead of");
return htc_get_batt_info(buffer);
}
}
if (!buffer)
return -EINVAL;
mutex_lock(&htc_batt_info.lock);
buffer->batt_id = smem_batt_info->batt_id;
buffer->batt_vol = smem_batt_info->batt_vol;
buffer->batt_temp = smem_batt_info->Temp;
buffer->batt_current = smem_batt_info->batt_current;
buffer->eval_current = smem_batt_info->eval_current;
/* Fix issue that recharging percent drop to 99%. */
/* The level in SMEM is for A9 internal use,
* always use value reported by M2A level update RPC. */
#if 0
buffer->level = smem_batt_info->percent_update;
#endif
/* Move the rules of charging_source to cable_status_update. */
/* buffer->charging_source = be32_to_cpu(smem_batt_info->charging_source); */
buffer->charging_enabled = smem_batt_info->charging_enabled;
buffer->full_bat = smem_batt_info->full_bat;
buffer->over_vchg = smem_batt_info->over_vchg;
mutex_unlock(&htc_batt_info.lock);
if (htc_batt_debug_mask & HTC_BATT_DEBUG_SMEM)
BATT_LOG("SMEM_BATT: get_batt_info: batt_id=%d, batt_vol=%d, batt_temp=%d, "
"batt_current=%d, eval_current=%d, level=%d, charging_source=%d, "
"charging_enabled=%d, full_bat=%d, over_vchg=%d",
buffer->batt_id, buffer->batt_vol, buffer->batt_temp,
buffer->batt_current, buffer->eval_current, buffer->level, buffer->charging_source,
buffer->charging_enabled, buffer->full_bat, buffer->over_vchg);
return 0;
}
static ssize_t htc_battery_show_smem(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int len = 0;
if (!smem_batt_info) {
smem_batt_info = smem_alloc(SMEM_BATT_INFO,
sizeof(struct htc_batt_info_full));
if (!smem_batt_info) {
BATT_ERR("Show SMEM: allocate fail");
return 0;
}
}
if (!strcmp(attr->attr.name, "smem_raw")) {
len = sizeof(struct htc_batt_info_full);
memcpy(buf, smem_batt_info, len);
} else if (!strcmp(attr->attr.name, "smem_text")) {
len += scnprintf(buf + len, PAGE_SIZE - len,
"batt_id: %d\n"
"batt_vol: %d\n"
"batt_vol_last: %d\n"
"batt_temp: %d\n"
"batt_current: %d\n"
"batt_current_last: %d\n"
"batt_discharge_current: %d\n"
"VREF_2: %d\n"
"VREF: %d\n"
"ADC4096_VREF: %d\n"
"Rtemp: %d\n"
"Temp: %d\n"
"Temp_last: %d\n"
"pd_M: %d\n"
"MBAT_pd: %d\n"
"I_MBAT: %d\n"
"pd_temp: %d\n"
"percent_last: %d\n"
"percent_update: %d\n"
"dis_percent: %d\n"
"vbus: %d\n"
"usbid: %d\n"
"charging_source: %d\n"
"MBAT_IN: %d\n"
"full_bat: %d\n"
"eval_current: %d\n"
"eval_current_last: %d\n"
"charging_enabled: %d\n"
"timeout: %d\n"
"fullcharge: %d\n"
"level: %d\n"
"delta: %d\n"
"chg_time: %d\n"
"level_change: %d\n"
"sleep_timer_count: %d\n"
"OT_led_on: %d\n"
"overloading_charge: %d\n"
"a2m_cable_type: %d\n"
"vchg: %d\n"
"over_vchg: %d\n",
smem_batt_info->batt_id,
smem_batt_info->batt_vol,
smem_batt_info->batt_vol_last,
smem_batt_info->batt_temp,
smem_batt_info->batt_current,
smem_batt_info->batt_current_last,
smem_batt_info->batt_discharge_current,
smem_batt_info->VREF_2,
smem_batt_info->VREF,
smem_batt_info->ADC4096_VREF,
smem_batt_info->Rtemp,
smem_batt_info->Temp,
smem_batt_info->Temp_last,
smem_batt_info->pd_M,
smem_batt_info->MBAT_pd,
smem_batt_info->I_MBAT,
smem_batt_info->pd_temp,
smem_batt_info->percent_last,
smem_batt_info->percent_update,
smem_batt_info->dis_percent,
smem_batt_info->vbus,
smem_batt_info->usbid,
smem_batt_info->charging_source,
smem_batt_info->MBAT_IN,
smem_batt_info->full_bat,
smem_batt_info->eval_current,
smem_batt_info->eval_current_last,
smem_batt_info->charging_enabled,
smem_batt_info->timeout,
smem_batt_info->fullcharge,
smem_batt_info->level,
smem_batt_info->delta,
smem_batt_info->chg_time,
smem_batt_info->level_change,
smem_batt_info->sleep_timer_count,
smem_batt_info->OT_led_on,
smem_batt_info->overloading_charge,
smem_batt_info->a2m_cable_type,
smem_batt_info->vchg,
smem_batt_info->over_vchg);
}
return len;
}
static int htc_set_smem_cable_type(u32 cable_type)
{
if (!smem_batt_info) {
smem_batt_info = smem_alloc(SMEM_BATT_INFO,
sizeof(struct htc_batt_info_full));
if (!smem_batt_info) {
BATT_ERR("Update SMEM: allocate fail");
return -EINVAL;
}
}
smem_batt_info->a2m_cable_type = cable_type;
BATT_LOG("Update SMEM: cable type %d", cable_type);
return 0;
}
#endif
static ssize_t htc_battery_show_batt_attr(struct device *dev,
struct device_attribute *attr,
char *buf)
{
switch (htc_batt_info.guage_driver) {
case GUAGE_MODEM:
#ifdef CONFIG_HTC_BATTCHG_SMEM
return htc_battery_show_smem(dev, attr, buf);
#endif
break;
case GUAGE_DS2784:
case GUAGE_DS2746:
return htc_batt_info.func_show_batt_attr(attr, buf);
break;
}
return 0;
}
/* -------------------------------------------------------------------------- */
static int htc_power_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
enum charger_type_t charger;
mutex_lock(&htc_batt_info.lock);
charger = htc_batt_info.rep.charging_source;
/* ARM9 decides charging_enabled value by battery id */
if (htc_batt_info.rep.batt_id == 255)
charger = CHARGER_BATTERY;
mutex_unlock(&htc_batt_info.lock);
switch (psp) {
case POWER_SUPPLY_PROP_ONLINE:
if (psy->type == POWER_SUPPLY_TYPE_MAINS) {
val->intval = (charger == CHARGER_AC ? 1 : 0);
if (htc_batt_debug_mask & HTC_BATT_DEBUG_USER_QUERY)
BATT_LOG("%s: %s: online=%d", __func__, psy->name, val->intval);
} else if (psy->type == POWER_SUPPLY_TYPE_USB) {
val->intval = (charger == CHARGER_USB ? 1 : 0);
if (htc_batt_debug_mask & HTC_BATT_DEBUG_USER_QUERY)
BATT_LOG("%s: %s: online=%d", __func__, psy->name, val->intval);
} else
val->intval = 0;
break;
default:
return -EINVAL;
}
return 0;
}
/* Once charge full, set this flag */
static int htc_charge_full = 0;
static int htc_battery_get_charging_status(void)
{
u32 level;
enum charger_type_t charger;
int ret;
mutex_lock(&htc_batt_info.lock);
charger = htc_batt_info.rep.charging_source;
/* ARM9 decides charging_enabled value by battery id */
if (htc_batt_info.rep.batt_id == 255)
charger = CHARGER_UNKNOWN;
switch (charger) {
case CHARGER_BATTERY:
htc_charge_full = 0;
ret = POWER_SUPPLY_STATUS_NOT_CHARGING;
break;
case CHARGER_USB:
case CHARGER_AC:
if ((htc_charge_full) && (htc_batt_info.rep.full_level == 100)) {
htc_batt_info.rep.level = 100;
}
level = htc_batt_info.rep.level;
if (level == 100){
htc_charge_full = 1;}
if (htc_charge_full)
ret = POWER_SUPPLY_STATUS_FULL;
else if (htc_batt_info.rep.charging_enabled != 0)
ret = POWER_SUPPLY_STATUS_CHARGING;
else
ret = POWER_SUPPLY_STATUS_DISCHARGING;
break;
default:
ret = POWER_SUPPLY_STATUS_UNKNOWN;
}
mutex_unlock(&htc_batt_info.lock);
return ret;
}
static int htc_battery_get_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
{
switch (psp) {
case POWER_SUPPLY_PROP_STATUS:
val->intval = htc_battery_get_charging_status();
if (htc_batt_debug_mask & HTC_BATT_DEBUG_USER_QUERY)
BATT_LOG("%s: %s: status=%d", __func__, psy->name, val->intval);
break;
case POWER_SUPPLY_PROP_HEALTH:
val->intval = POWER_SUPPLY_HEALTH_GOOD;
if (machine_is_paradise() && (htc_batt_info.rep.batt_temp >= 500 ||
htc_batt_info.rep.batt_temp <= 0))
val->intval = POWER_SUPPLY_HEALTH_OVERHEAT;
else if (!machine_is_paradise() && (htc_batt_info.rep.batt_temp >= 480 ||
htc_batt_info.rep.batt_temp <= 0))
val->intval = POWER_SUPPLY_HEALTH_OVERHEAT;
if (htc_batt_debug_mask & HTC_BATT_DEBUG_USER_QUERY)
BATT_LOG("%s: %s: health=%d", __func__, psy->name, val->intval);
break;
case POWER_SUPPLY_PROP_PRESENT:
val->intval = htc_batt_info.present;
if (htc_batt_debug_mask & HTC_BATT_DEBUG_USER_QUERY)
BATT_LOG("%s: %s: present=%d", __func__, psy->name, val->intval);
break;
case POWER_SUPPLY_PROP_TECHNOLOGY:
val->intval = POWER_SUPPLY_TECHNOLOGY_LION;
if (htc_batt_debug_mask & HTC_BATT_DEBUG_USER_QUERY)
BATT_LOG("%s: %s: technology=%d", __func__, psy->name, val->intval);
break;
case POWER_SUPPLY_PROP_CAPACITY:
mutex_lock(&htc_batt_info.lock);
val->intval = htc_batt_info.rep.level;
/* prevent shutdown before battery driver ready. */
if (htc_batt_info.device_id == 0)
val->intval = 55; /* 55 == ?? */
mutex_unlock(&htc_batt_info.lock);
if (htc_batt_debug_mask & HTC_BATT_DEBUG_USER_QUERY)
BATT_LOG("%s: %s: capacity=%d", __func__, psy->name, val->intval);
break;
default:
return -EINVAL;
}
return 0;
}
#define HTC_BATTERY_ATTR(_name) \
{ \
.attr = { .name = #_name, .mode = S_IRUGO, .owner = THIS_MODULE }, \
.show = htc_battery_show_property, \
.store = NULL, \
}
static struct device_attribute htc_battery_attrs[] = {
HTC_BATTERY_ATTR(batt_id),
HTC_BATTERY_ATTR(batt_vol),
HTC_BATTERY_ATTR(batt_temp),
HTC_BATTERY_ATTR(batt_current),
HTC_BATTERY_ATTR(charging_source),
HTC_BATTERY_ATTR(charging_enabled),
HTC_BATTERY_ATTR(full_bat),
HTC_BATTERY_ATTR(over_vchg),
/*[FIXME]__ATTR(batt_attr_raw, S_IRUGO, htc_battery_show_batt_attr, NULL),*/
#ifdef CONFIG_HTC_BATTCHG_SMEM
__ATTR(smem_raw, S_IRUGO, htc_battery_show_smem, NULL),
__ATTR(smem_text, S_IRUGO, htc_battery_show_smem, NULL),
#else
__ATTR(batt_attr_text, S_IRUGO, htc_battery_show_batt_attr, NULL),
#endif
};
enum {
BATT_ID = 0,
BATT_VOL,
BATT_TEMP,
BATT_CURRENT,
CHARGING_SOURCE,
CHARGING_ENABLED,
FULL_BAT,
OVER_VCHG,
};
static int htc_rpc_set_delta(unsigned delta)
{
struct set_batt_delta_req {
struct rpc_request_hdr hdr;
uint32_t data;
} req;
req.data = cpu_to_be32(delta);
return msm_rpc_call(endpoint, HTC_PROCEDURE_SET_BATT_DELTA,
&req, sizeof(req), 5 * HZ);
}
static int htc_rpc_charger_switch(unsigned enable)
{
struct charger_switch_req {
struct rpc_request_hdr hdr;
uint32_t data;
} req;
req.data = cpu_to_be32(enable);
return msm_rpc_call(endpoint, HTC_PROCEDURE_CHARGER_SWITCH,
&req, sizeof(req), 5 * HZ);
}
static int htc_rpc_set_full_level(unsigned level)
{
struct set_batt_full_level_req {
struct rpc_request_hdr hdr;
uint32_t data;
} req;
req.data = cpu_to_be32(level);
return msm_rpc_call(endpoint, HTC_PROCEDURE_SET_FULL_LEVEL,
&req, sizeof(req), 5 * HZ);
}
static ssize_t htc_battery_set_delta(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int rc;
unsigned long delta = 0;
delta = simple_strtoul(buf, NULL, 10);
if (delta > 100)
return -EINVAL;
mutex_lock(&htc_batt_info.rpc_lock);
rc = htc_rpc_set_delta(delta);
mutex_unlock(&htc_batt_info.rpc_lock);
if (rc < 0)
return rc;
return count;
}
/*
* For PA and QA test
* 0x10-> fake temp to 250
* 0x11->TBD if needed
* 0x12->TBD if needed
* ....
*/
static ssize_t htc_battery_debug_flag(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
unsigned long debug_flag;
debug_flag = simple_strtoul(buf, NULL, 10);
if (debug_flag > 100 || debug_flag == 0)
return -EINVAL;
mutex_lock(&htc_batt_info.lock);
blocking_notifier_call_chain(&cable_status_notifier_list,
debug_flag, 0);
mutex_unlock(&htc_batt_info.lock);
return 0;
}
static ssize_t htc_battery_charger_switch(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int rc;
unsigned long enable = 0;
enable = simple_strtoul(buf, NULL, 10);
if (enable > 1 || enable < 0)
return -EINVAL;
mutex_lock(&htc_batt_info.rpc_lock);
rc = htc_rpc_charger_switch(enable);
mutex_unlock(&htc_batt_info.rpc_lock);
if (rc < 0)
return rc;
return count;
}
static ssize_t htc_battery_set_full_level(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
int rc = 0;
unsigned long percent = 100;
unsigned long param = 0;
percent = simple_strtoul(buf, NULL, 10);
if (percent > 100 || percent == 0)
return -EINVAL;
switch (htc_batt_info.guage_driver) {
case GUAGE_MODEM:
mutex_lock(&htc_batt_info.rpc_lock);
htc_batt_info.rep.full_level = percent;
rc = htc_rpc_set_full_level(percent);
mutex_unlock(&htc_batt_info.rpc_lock);
break;
case GUAGE_DS2784:
case GUAGE_DS2746:
if (htc_full_level_flag == 0) {
mutex_lock(&htc_batt_info.lock);
htc_full_level_flag = 1;
htc_batt_info.rep.full_level = percent;
param = percent;
blocking_notifier_call_chain(&cable_status_notifier_list,
0xff, (void *) &param);
mutex_unlock(&htc_batt_info.lock);
}
rc = 0;
break;
}
if (rc < 0)
return rc;
return rc;
}
static struct device_attribute htc_set_delta_attrs[] = {
__ATTR(delta, S_IWUSR | S_IWGRP, NULL, htc_battery_set_delta),
__ATTR(full_level, S_IWUSR | S_IWGRP, NULL, htc_battery_set_full_level),
__ATTR(batt_debug_flag,S_IWUSR | S_IWGRP, NULL, htc_battery_debug_flag),
__ATTR(charger_control, S_IWUSR | S_IWGRP, NULL, htc_battery_charger_switch),
};
static int htc_battery_create_attrs(struct device * dev)
{
int i = 0, j = 0, rc = 0;
for (i = 0; i < ARRAY_SIZE(htc_battery_attrs); i++) {
rc = device_create_file(dev, &htc_battery_attrs[i]);
if (rc)
goto htc_attrs_failed;
}
for (j = 0; j < ARRAY_SIZE(htc_set_delta_attrs); j++) {
rc = device_create_file(dev, &htc_set_delta_attrs[j]);
if (rc)
goto htc_delta_attrs_failed;
}
goto succeed;
htc_attrs_failed:
while (i--)
device_remove_file(dev, &htc_battery_attrs[i]);
htc_delta_attrs_failed:
while (j--)
device_remove_file(dev, &htc_set_delta_attrs[i]);
succeed:
return rc;
}
static int update_batt_info(void)
{
int ret = 0;
/* FIXME */
switch (htc_batt_info.guage_driver) {
case GUAGE_MODEM:
#ifdef CONFIG_HTC_BATTCHG_SMEM
if (htc_get_batt_info_smem(&htc_batt_info.rep) < 0) {
BATT_ERR("%s: smem read failed!!!", __func__);
ret = -1;
}
#else
if (htc_get_batt_info(&htc_batt_info.rep) < 0) {
BATT_ERR("%s: rpc failed!!!", __func__);
ret = -1;
}
#endif
break;
#ifdef CONFIG_BATTERY_DS2784
case GUAGE_DS2784:
if (ds2784_get_battery_info(&htc_batt_info.rep)) {
BATT_ERR("%s: ds2784 read failed!!!", __func__);
ret = -1;
}
break;
#elif CONFIG_BATTERY_DS2746
case GUAGE_DS2746:
if (ds2746_get_battery_info(&htc_batt_info.rep)) {
BATT_ERR("%s: ds2746 read failed!!!", __func__);
ret = -1;
}
break;
#endif
default:
return -EINVAL;
}
return ret;
}
static ssize_t htc_battery_show_property(struct device *dev,
struct device_attribute *attr,
char *buf)
{
int i = 0;
const ptrdiff_t off = attr - htc_battery_attrs;
/* rpc lock is used to prevent two threads from calling
* into the get info rpc at the same time
*/
mutex_lock(&htc_batt_info.rpc_lock);
/* check cache time to decide if we need to update */
if (htc_batt_info.update_time &&
time_before(jiffies, htc_batt_info.update_time +
msecs_to_jiffies(cache_time))) {
BATT_LOG("%s: use cached values", __func__);
goto dont_need_update;
}
if (!update_batt_info())
htc_batt_info.update_time = jiffies;
dont_need_update:
mutex_unlock(&htc_batt_info.rpc_lock);
mutex_lock(&htc_batt_info.lock);
switch (off) {
case BATT_ID:
i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
htc_batt_info.rep.batt_id);
break;
case BATT_VOL:
i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
htc_batt_info.rep.batt_vol);
break;
case BATT_TEMP:
i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
htc_batt_info.rep.batt_temp);
break;
case BATT_CURRENT:
i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
htc_batt_info.rep.batt_current);
break;
case CHARGING_SOURCE:
i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
htc_batt_info.rep.charging_source);
break;
case CHARGING_ENABLED:
i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
htc_batt_info.rep.charging_enabled);
break;
case FULL_BAT:
i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
htc_batt_info.rep.full_bat);
break;
case OVER_VCHG:
i += scnprintf(buf + i, PAGE_SIZE - i, "%d\n",
htc_batt_info.rep.over_vchg);
break;
default:
i = -EINVAL;
}
mutex_unlock(&htc_batt_info.lock);
if (htc_batt_debug_mask & HTC_BATT_DEBUG_USER_QUERY) {
if (i < 0)
BATT_LOG("%s: battery: attribute is not supported: %d", __func__, off);
else
BATT_LOG("%s: battery: %s=%s", __func__, attr->attr.name, buf);
}
return i;
}
static int htc_battery_core_probe(struct platform_device *pdev)
{
int i, rc;
/* init battery gpio */
if (htc_batt_info.charger == LINEAR_CHARGER) {
if ((rc = init_batt_gpio()) < 0) {
BATT_ERR("%s: init battery gpio failed!", __func__);
return rc;
}
}
/* init structure data member */
htc_batt_info.update_time = jiffies;
/* A9 will shutdown the phone if battery is pluged out, so this value is always 1.
htc_batt_info.present = gpio_get_value(GPIO_TROUT_MBAT_IN);
*/
htc_batt_info.present = 1;
/* init rpc */
endpoint = msm_rpc_connect(APP_BATT_PROG, APP_BATT_VER, 0);
if (IS_ERR(endpoint)) {
BATT_ERR("%s: init rpc failed! rc = %ld",
__func__, PTR_ERR(endpoint));
return -EINVAL;
}
/* init power supplier framework */
for (i = 0; i < ARRAY_SIZE(htc_power_supplies); i++) {
rc = power_supply_register(&pdev->dev, &htc_power_supplies[i]);
if (rc)
BATT_ERR("%s: Failed to register power supply (%d)", __func__, rc);
}
/* create htc detail attributes */
htc_battery_create_attrs(htc_power_supplies[CHARGER_BATTERY].dev);
/* After battery driver gets initialized, send rpc request to inquiry
* the battery status in case of we lost some info
*/
htc_battery_initial = 1;
mutex_lock(&htc_batt_info.rpc_lock);
htc_batt_info.rep.charging_source = CHARGER_BATTERY;
if (htc_get_batt_info(&htc_batt_info.rep) < 0)
BATT_ERR("%s: get info failed", __func__);
if (htc_rpc_set_delta(1) < 0)
BATT_ERR("%s: set delta failed", __func__);
htc_batt_info.update_time = jiffies;
mutex_unlock(&htc_batt_info.rpc_lock);
return 0;
}
static struct platform_driver htc_battery_core_driver = {
.probe = htc_battery_core_probe,
.driver = {
.name = APP_BATT_PDEV_NAME,
.owner = THIS_MODULE,
},
};
/* batt_mtoa server definitions */
#define BATT_MTOA_PROG 0x30100000
#define BATT_MTOA_VERS 0
#define RPC_BATT_MTOA_NULL 0
#define RPC_BATT_MTOA_SET_CHARGING_PROC 1
#define RPC_BATT_MTOA_CABLE_STATUS_UPDATE_PROC 2
#define RPC_BATT_MTOA_LEVEL_UPDATE_PROC 3
struct rpc_batt_mtoa_set_charging_args {
int enable;
};
struct rpc_batt_mtoa_cable_status_update_args {
int status;
};
struct rpc_dem_battery_update_args {
uint32_t level;
};
static int handle_battery_call(struct msm_rpc_server *server,
struct rpc_request_hdr *req, unsigned len)
{
switch (req->procedure) {
case RPC_BATT_MTOA_NULL:
return 0;
case RPC_BATT_MTOA_SET_CHARGING_PROC: {
struct rpc_batt_mtoa_set_charging_args *args;
args = (struct rpc_batt_mtoa_set_charging_args *)(req + 1);
args->enable = be32_to_cpu(args->enable);
if (htc_batt_debug_mask & HTC_BATT_DEBUG_M2A_RPC)
BATT_LOG("M2A_RPC: set_charging: %d", args->enable);
if (htc_batt_info.charger == SWITCH_CHARGER)
blocking_notifier_call_chain(&cable_status_notifier_list,
args->enable, NULL);
else {
htc_battery_set_charging(args->enable);
}
return 0;
}
case RPC_BATT_MTOA_CABLE_STATUS_UPDATE_PROC: {
struct rpc_batt_mtoa_cable_status_update_args *args;
args = (struct rpc_batt_mtoa_cable_status_update_args *)(req + 1);
args->status = be32_to_cpu(args->status);
if (htc_batt_debug_mask & HTC_BATT_DEBUG_M2A_RPC)
BATT_LOG("M2A_RPC: cable_update: %s", charger_tags[args->status]);
#if 0
/* FIXME: work arround for usb function, remove it after battery driver ready */
if (machine_is_incrediblec() && args->status == CHARGER_AC)
args->status = CHARGER_USB;
#endif
htc_cable_status_update(args->status);
#if defined(CONFIG_TROUT_BATTCHG_DOCK)
dock_detect_start(args->status);
#endif
return 0;
}
case RPC_BATT_MTOA_LEVEL_UPDATE_PROC: {
struct rpc_dem_battery_update_args *args;
args = (struct rpc_dem_battery_update_args *)(req + 1);
args->level = be32_to_cpu(args->level);
if (htc_batt_debug_mask & HTC_BATT_DEBUG_M2A_RPC)
BATT_LOG("M2A_RPC: level_update: %d", args->level);
htc_battery_status_update(args->level);
return 0;
}
default:
BATT_ERR("%s: program 0x%08x:%d: unknown procedure %d",
__func__, req->prog, req->vers, req->procedure);
return -ENODEV;
}
}
static struct msm_rpc_server battery_server = {
.prog = BATT_MTOA_PROG,
.vers = BATT_MTOA_VERS,
.rpc_call = handle_battery_call,
};
#if defined(CONFIG_BATTERY_DS2784) || defined(CONFIG_BATTERY_DS2746)
static int ds2784_notifier_func(struct notifier_block *nfb,
unsigned long action, void *param)
{
u8 arg = 0;
if (param)
arg = *(u8 *)param;
BATT_LOG("ds2784_notify: %ld %d", action, arg);
switch (action) {
case DS2784_CHARGING_CONTROL:
if (htc_batt_info.charger == LINEAR_CHARGER)
battery_charging_ctrl(arg);
// else if(htc_batt_info.charger == SWITCH_CHARGER)
// set_charger_ctrl(arg);
break;
case DS2784_LEVEL_UPDATE:
htc_battery_status_update(arg);
break;
case DS2784_BATTERY_FAULT:
case DS2784_OVER_TEMP:
htc_battery_status_update(htc_batt_info.rep.level);
break;
default:
return NOTIFY_BAD;
}
return NOTIFY_OK; /* we did not care other action here */
}
static struct notifier_block ds2784_notifier = {
.notifier_call = ds2784_notifier_func,
};
#endif
static int htc_battery_probe(struct platform_device *pdev)
{
struct htc_battery_platform_data *pdata = pdev->dev.platform_data;
htc_batt_info.device_id = pdev->id;
htc_batt_info.gpio_usb_id = pdata->gpio_usb_id;
htc_batt_info.guage_driver = pdata->guage_driver;
htc_batt_info.m2a_cable_detect = pdata->m2a_cable_detect;
htc_batt_info.func_show_batt_attr = pdata->func_show_batt_attr;
htc_batt_info.charger = pdata->charger;
htc_batt_info.rep.full_level = 100;
if (htc_batt_info.charger == LINEAR_CHARGER) {
htc_batt_info.gpio_mbat_in = pdata->gpio_mbat_in;
htc_batt_info.gpio_mchg_en_n = pdata->gpio_mchg_en_n;
htc_batt_info.gpio_iset = pdata->gpio_iset;
}
if (pdata->guage_driver == GUAGE_MODEM ||
pdata->m2a_cable_detect)
msm_rpc_create_server(&battery_server);
#ifdef CONFIG_BATTERY_DS2784
if (pdata->guage_driver == GUAGE_DS2784)
ds2784_register_notifier(&ds2784_notifier);
#elif CONFIG_BATTERY_DS2746
if (pdata->guage_driver == GUAGE_DS2746)
ds2746_register_notifier(&ds2784_notifier);
#endif
return 0;
}
int get_cable_status(void)
{
// if(htc_batt_info.rep.charging_source == CHARGER_AC || htc_batt_info.rep.charging_source == CHARGER_USB)
// htc_cable_status_update(htc_batt_info.rep.charging_source);
return htc_batt_info.rep.charging_source;
}
static struct platform_driver htc_battery_driver = {
.probe = htc_battery_probe,
.driver = {
.name = "htc_battery",
.owner = THIS_MODULE,
},
};
static struct notifier_block batt_notify = {
.notifier_call = htc_power_policy,
};
static BLOCKING_NOTIFIER_HEAD(battery_notifier_list);
int batt_register_client(struct notifier_block *nb)
{
return blocking_notifier_chain_register(&battery_notifier_list, nb);
}
int batt_unregister_client(struct notifier_block *nb)
{
return blocking_notifier_chain_unregister(&battery_notifier_list, nb);
}
int batt_notifier_call_chain(unsigned long val, void *v)
{
return blocking_notifier_call_chain(&battery_notifier_list, val, v);
}
static int __init htc_battery_init(void)
{
wake_lock_init(&vbus_wake_lock, WAKE_LOCK_SUSPEND, "vbus_present");
mutex_init(&htc_batt_info.lock);
mutex_init(&htc_batt_info.rpc_lock);
usb_register_notifier(&usb_status_notifier);
platform_driver_register(&htc_battery_driver);
platform_driver_register(&htc_battery_core_driver);
batt_register_client(&batt_notify);
/* Jay, The msm_fb need to consult htc_battery for power policy */
display_notifier(htc_power_policy, NOTIFY_POWER);
return 0;
}
module_init(htc_battery_init);
MODULE_DESCRIPTION("HTC Battery Driver");
MODULE_LICENSE("GPL");
EXPORT_SYMBOL(htc_is_cable_in);
EXPORT_SYMBOL(htc_is_zcharge_enabled);
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