include/uapi/regulator/regulator.h

   1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2 /*
   3  * Regulator uapi header
   4  *
   5  * Author: Naresh Solanki <Naresh.Solanki@9elements.com>
   6  */
   7
   8 #ifndef _UAPI_REGULATOR_H
   9 #define _UAPI_REGULATOR_H
  10
  11 #ifdef __KERNEL__
  12 #include <linux/types.h>
  13 #else
  14 #include <stdint.h>
  15 #endif
  16
  17 /*
  18  * Regulator notifier events.
  19  *
  20  * UNDER_VOLTAGE  Regulator output is under voltage.
  21  * OVER_CURRENT   Regulator output current is too high.
  22  * REGULATION_OUT Regulator output is out of regulation.
  23  * FAIL           Regulator output has failed.
  24  * OVER_TEMP      Regulator over temp.
  25  * FORCE_DISABLE  Regulator forcibly shut down by software.
  26  * VOLTAGE_CHANGE Regulator voltage changed.
  27  *                Data passed is old voltage cast to (void *).
  28  * DISABLE        Regulator was disabled.
  29  * PRE_VOLTAGE_CHANGE   Regulator is about to have voltage changed.
  30  *                      Data passed is "struct pre_voltage_change_data"
  31  * ABORT_VOLTAGE_CHANGE Regulator voltage change failed for some reason.
  32  *                      Data passed is old voltage cast to (void *).
  33  * PRE_DISABLE    Regulator is about to be disabled
  34  * ABORT_DISABLE  Regulator disable failed for some reason
  35  *
  36  * NOTE: These events can be OR'ed together when passed into handler.
  37  */
  38
  39 #define REGULATOR_EVENT_UNDER_VOLTAGE           0x01
  40 #define REGULATOR_EVENT_OVER_CURRENT            0x02
  41 #define REGULATOR_EVENT_REGULATION_OUT          0x04
  42 #define REGULATOR_EVENT_FAIL                    0x08
  43 #define REGULATOR_EVENT_OVER_TEMP               0x10
  44 #define REGULATOR_EVENT_FORCE_DISABLE           0x20
  45 #define REGULATOR_EVENT_VOLTAGE_CHANGE          0x40
  46 #define REGULATOR_EVENT_DISABLE                 0x80
  47 #define REGULATOR_EVENT_PRE_VOLTAGE_CHANGE      0x100
  48 #define REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE    0x200
  49 #define REGULATOR_EVENT_PRE_DISABLE             0x400
  50 #define REGULATOR_EVENT_ABORT_DISABLE           0x800
  51 #define REGULATOR_EVENT_ENABLE                  0x1000
  52 /*
  53  * Following notifications should be emitted only if detected condition
  54  * is such that the HW is likely to still be working but consumers should
  55  * take a recovery action to prevent problems escalating into errors.
  56  */
  57 #define REGULATOR_EVENT_UNDER_VOLTAGE_WARN      0x2000
  58 #define REGULATOR_EVENT_OVER_CURRENT_WARN       0x4000
  59 #define REGULATOR_EVENT_OVER_VOLTAGE_WARN       0x8000
  60 #define REGULATOR_EVENT_OVER_TEMP_WARN          0x10000
  61 #define REGULATOR_EVENT_WARN_MASK               0x1E000
  62
  63 struct reg_genl_event {
  64         char reg_name[32];
  65         uint64_t event;
  66 };
  67
  68 /* attributes of reg_genl_family */
  69 enum {
  70         REG_GENL_ATTR_UNSPEC,
  71         REG_GENL_ATTR_EVENT,    /* reg event info needed by user space */
  72         __REG_GENL_ATTR_MAX,
  73 };
  74
  75 #define REG_GENL_ATTR_MAX (__REG_GENL_ATTR_MAX - 1)
  76
  77 /* commands supported by the reg_genl_family */
  78 enum {
  79         REG_GENL_CMD_UNSPEC,
  80         REG_GENL_CMD_EVENT,     /* kernel->user notifications for reg events */
  81         __REG_GENL_CMD_MAX,
  82 };
  83
  84 #define REG_GENL_CMD_MAX (__REG_GENL_CMD_MAX - 1)
  85
  86 #define REG_GENL_FAMILY_NAME            "reg_event"
  87 #define REG_GENL_VERSION                0x01
  88 #define REG_GENL_MCAST_GROUP_NAME       "reg_mc_group"
  89
  90 #endif /* _UAPI_REGULATOR_H */