include/linux/mfd/rave-sp.h

   1 /* SPDX-License-Identifier: GPL-2.0+ */
   2
   3 /*
   4  * Core definitions for RAVE SP MFD driver.
   5  *
   6  * Copyright (C) 2017 Zodiac Inflight Innovations
   7  */
   8
   9 #ifndef _LINUX_RAVE_SP_H_
  10 #define _LINUX_RAVE_SP_H_
  11
  12 #include <linux/notifier.h>
  13
  14 enum rave_sp_command {
  15         RAVE_SP_CMD_GET_FIRMWARE_VERSION        = 0x20,
  16         RAVE_SP_CMD_GET_BOOTLOADER_VERSION      = 0x21,
  17         RAVE_SP_CMD_BOOT_SOURCE                 = 0x26,
  18         RAVE_SP_CMD_GET_BOARD_COPPER_REV        = 0x2B,
  19         RAVE_SP_CMD_GET_GPIO_STATE              = 0x2F,
  20
  21         RAVE_SP_CMD_STATUS                      = 0xA0,
  22         RAVE_SP_CMD_SW_WDT                      = 0xA1,
  23         RAVE_SP_CMD_PET_WDT                     = 0xA2,
  24         RAVE_SP_CMD_RESET                       = 0xA7,
  25         RAVE_SP_CMD_RESET_REASON                = 0xA8,
  26
  27         RAVE_SP_CMD_REQ_COPPER_REV              = 0xB6,
  28         RAVE_SP_CMD_GET_I2C_DEVICE_STATUS       = 0xBA,
  29         RAVE_SP_CMD_GET_SP_SILICON_REV          = 0xB9,
  30         RAVE_SP_CMD_CONTROL_EVENTS              = 0xBB,
  31
  32         RAVE_SP_EVNT_BASE                       = 0xE0,
  33 };
  34
  35 struct rave_sp;
  36
  37 static inline unsigned long rave_sp_action_pack(u8 event, u8 value)
  38 {
  39         return ((unsigned long)value << 8) | event;
  40 }
  41
  42 static inline u8 rave_sp_action_unpack_event(unsigned long action)
  43 {
  44         return action;
  45 }
  46
  47 static inline u8 rave_sp_action_unpack_value(unsigned long action)
  48 {
  49         return action >> 8;
  50 }
  51
  52 int rave_sp_exec(struct rave_sp *sp,
  53                  void *__data,  size_t data_size,
  54                  void *reply_data, size_t reply_data_size);
  55
  56 struct device;
  57 int devm_rave_sp_register_event_notifier(struct device *dev,
  58                                          struct notifier_block *nb);
  59
  60 #endif /* _LINUX_RAVE_SP_H_ */