diff options
Diffstat (limited to 'drivers/usb/core/sec-dock.h')
| -rw-r--r-- | drivers/usb/core/sec-dock.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/drivers/usb/core/sec-dock.h b/drivers/usb/core/sec-dock.h new file mode 100644 index 0000000..1521b67 --- /dev/null +++ b/drivers/usb/core/sec-dock.h @@ -0,0 +1,133 @@ +/* + * 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; +} + |