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/*
* drivers/usb/core/sec-dock.h
*
* Copyright (C) 2012 Samsung Electronics
* Author: Woo-kwang Lee <wookwang.lee@samsung.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*/
#if defined(CONFIG_MUIC_MAX77693_SUPPORT_OTG_AUDIO_DOCK)
#include <linux/mfd/max77693.h>
#endif /* CONFIG_MUIC_MAX77693_SUPPORT_OTG_AUDIO_DOCK */
#include <linux/power_supply.h>
#define PSY_CHG_NAME "max77693-charger"
int usb_open_count;
bool is_smartdock;
static struct usb_device_id battery_notify_exception_table[] = {
/* add exception table list */
{ USB_DEVICE(0x1d6b, 0x0001), }, /* OHCI Host Controller */
{ USB_DEVICE(0x1d6b, 0x0002), }, /* EHCI Host Controller */
{ USB_DEVICE(0x1519, 0x0020), }, /* HSIC Device */
{ USB_DEVICE(0x05c6, 0x904c), }, /* Qualcomm modem */
{ USB_DEVICE(0x05c6, 0x9008), }, /* Qualcomm modem */
{ USB_DEVICE(0x08bb, 0x27c4), }, /* TI USB Audio DAC */
{ } /* Terminating entry */
};
#if defined(CONFIG_MUIC_MAX77693_SUPPORT_OTG_AUDIO_DOCK)
static struct usb_device_id audio_dock_table[] = {
/* add exception table list */
{ USB_DEVICE(0x04e8, 0x1220), }, /* Samsung Audio Dock */
{ USB_DEVICE(0x08bb, 0x27c4), }, /* TI USB Audio DAC */
{ } /* Terminating entry */
};
static void call_audiodock_notify(struct usb_device *dev)
{
struct usb_device_id *id = audio_dock_table;
/* check VID, PID */
for (id = audio_dock_table; id->match_flags; id++) {
if ((id->match_flags & USB_DEVICE_ID_MATCH_VENDOR) &&
(id->match_flags & USB_DEVICE_ID_MATCH_PRODUCT) &&
id->idVendor == le16_to_cpu(dev->descriptor.idVendor) &&
id->idProduct == le16_to_cpu(dev->descriptor.idProduct)) {
dev_info(&dev->dev, "Audio Dock is connected!\n");
max77693_muic_attach_audio_dock();
return;
}
}
}
#endif /* CONFIG_MUIC_MAX77693_SUPPORT_OTG_AUDIO_DOCK */
/* real battery driver notification function */
static void set_online(int host_state)
{
struct power_supply *psy = power_supply_get_by_name(PSY_CHG_NAME);
union power_supply_propval value;
int sub_type;
if (!psy) {
pr_err("%s: fail to get %s psy\n", __func__, PSY_CHG_NAME);
return;
}
if (host_state)
sub_type = ONLINE_SUB_TYPE_SMART_OTG;
else
sub_type = ONLINE_SUB_TYPE_SMART_NOTG;
value.intval = 0;
value.intval = (sub_type << 8);
psy->set_property(psy, POWER_SUPPLY_PROP_ONLINE, &value);
return;
}
static int call_battery_notify(struct usb_device *dev, bool bOnOff)
{
struct usb_device_id *id = battery_notify_exception_table;
/* Smart Dock hub must be skipped */
if ((le16_to_cpu(dev->descriptor.idVendor) == 0x1a40 &&
le16_to_cpu(dev->descriptor.idProduct) == 0x0101)) {
if (bOnOff)
is_smartdock = 1;
else
is_smartdock = 0;
return 0;
}
/* check VID, PID */
for (id = battery_notify_exception_table; id->match_flags; id++) {
if ((id->match_flags & USB_DEVICE_ID_MATCH_VENDOR) &&
(id->match_flags & USB_DEVICE_ID_MATCH_PRODUCT) &&
id->idVendor == le16_to_cpu(dev->descriptor.idVendor) &&
id->idProduct == le16_to_cpu(dev->descriptor.idProduct)) {
pr_info("%s : VID : 0x%x, PID : 0x%x skipped.\n",
__func__, id->idVendor, id->idProduct);
return 0;
}
}
if (bOnOff)
usb_open_count++;
else
usb_open_count--;
/* battery driver notification */
if (usb_open_count == 1 && bOnOff && is_smartdock) {
pr_info("%s : VID : 0x%x, PID : 0x%x set 1000mA.\n",
__func__,
le16_to_cpu(dev->descriptor.idVendor),
le16_to_cpu(dev->descriptor.idProduct));
set_online(1);
} else if (usb_open_count == 0 && !bOnOff) {
pr_info("%s : VID : 0x%x, PID : 0x%x set 1700mA.\n",
__func__,
le16_to_cpu(dev->descriptor.idVendor),
le16_to_cpu(dev->descriptor.idProduct));
set_online(0);
} else {
pr_info("%s : VID : 0x%x, PID : 0x%x no action.\n",
__func__,
le16_to_cpu(dev->descriptor.idVendor),
le16_to_cpu(dev->descriptor.idProduct));
/* Nothing to do */
}
return 1;
}
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