include/linux/power/imx6_usb_charger.h

   1 /*
   2  * Copyright (C) 2013 Freescale Semiconductor, Inc. All Rights Reserved.
   3  *
   4  * The code contained herein is licensed under the GNU General Public
   5  * License. You may obtain a copy of the GNU General Public License
   6  * Version 2 or later at the following locations:
   7  *
   8  * http://www.opensource.org/licenses/gpl-license.html
   9  * http://www.gnu.org/copyleft/gpl.html
  10  */
  11
  12 #ifndef __IMXUSB6_CHARGER_H
  13 #define __IMXUSB6_CHARGER_H
  14
  15 #include <linux/power_supply.h>
  16 enum battery_charging_spec {
  17         BATTERY_CHARGING_SPEC_NONE = 0,
  18         BATTERY_CHARGING_SPEC_UNKNOWN,
  19         BATTERY_CHARGING_SPEC_1_0,
  20         BATTERY_CHARGING_SPEC_1_1,
  21         BATTERY_CHARGING_SPEC_1_2,
  22 };
  23
  24 struct usb_charger {
  25         /* The anatop regmap */
  26         struct regmap           *anatop;
  27         /* USB controller */
  28         struct device           *dev;
  29         struct power_supply     psy;
  30         struct mutex            lock;
  31
  32         /* Compliant with Battery Charging Specification version (if any) */
  33         enum battery_charging_spec      bc;
  34
  35         /* properties */
  36         unsigned                present:1;
  37         unsigned                online:1;
  38         unsigned                max_current;
  39         int     (*connect)(struct usb_charger *charger);
  40         int     (*disconnect)(struct usb_charger *charger);
  41         int     (*set_power)(struct usb_charger *charger, unsigned mA);
  42
  43         int     (*detect)(struct usb_charger *charger);
  44 };
  45
  46 #ifdef CONFIG_IMX6_USB_CHARGER
  47 extern void imx6_usb_remove_charger(struct usb_charger *charger);
  48 extern int imx6_usb_create_charger(struct usb_charger *charger,
  49                 const char *name);
  50 extern int imx6_usb_vbus_disconnect(struct usb_charger *charger);
  51 extern int imx6_usb_vbus_connect(struct usb_charger *charger);
  52 extern int imx6_usb_charger_detect_post(struct usb_charger *charger);
  53 #else
  54 void imx6_usb_remove_charger(struct usb_charger *charger)
  55 {
  56
  57 }
  58
  59 int imx6_usb_create_charger(struct usb_charger *charger,
  60                 const char *name)
  61 {
  62         return -ENODEV;
  63 }
  64
  65 int imx6_usb_vbus_disconnect(struct usb_charger *charger)
  66 {
  67         return -ENODEV;
  68 }
  69
  70 int imx6_usb_vbus_connect(struct usb_charger *charger)
  71 {
  72         return -ENODEV;
  73 }
  74 int imx6_usb_charger_detect_post(struct usb_charger *charger)
  75 {
  76         return -ENODEV;
  77 }
  78 #endif
  79
  80 #endif /* __IMXUSB6_CHARGER_H */