include/linux/wkup_m3_ipc.h

   1 /*
   2  * TI Wakeup M3 for AMx3 SoCs Power Management Routines
   3  *
   4  * Copyright (C) 2015 Texas Instruments Incorporated - http://www.ti.com/
   5  * Dave Gerlach <d-gerlach@ti.com>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation version 2.
  10  *
  11  * This program is distributed "as is" WITHOUT ANY WARRANTY of any
  12  * kind, whether express or implied; without even the implied warranty
  13  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  */
  16
  17 #ifndef _LINUX_WKUP_M3_IPC_H
  18 #define _LINUX_WKUP_M3_IPC_H
  19
  20 #define WKUP_M3_DEEPSLEEP       1
  21 #define WKUP_M3_STANDBY         2
  22 #define WKUP_M3_IDLE            3
  23
  24 #include <linux/mailbox_client.h>
  25
  26 struct wkup_m3_ipc_ops;
  27
  28 struct wkup_m3_ipc {
  29         struct rproc *rproc;
  30
  31         void __iomem *ipc_mem_base;
  32         struct device *dev;
  33
  34         int mem_type;
  35         unsigned long resume_addr;
  36         int state;
  37
  38         struct completion sync_complete;
  39         struct mbox_client mbox_client;
  40         struct mbox_chan *mbox;
  41
  42         struct wkup_m3_ipc_ops *ops;
  43 };
  44
  45 struct wkup_m3_ipc_ops {
  46         void (*set_mem_type)(struct wkup_m3_ipc *m3_ipc, int mem_type);
  47         void (*set_resume_address)(struct wkup_m3_ipc *m3_ipc, void *addr);
  48         int (*prepare_low_power)(struct wkup_m3_ipc *m3_ipc, int state);
  49         int (*finish_low_power)(struct wkup_m3_ipc *m3_ipc);
  50         int (*request_pm_status)(struct wkup_m3_ipc *m3_ipc);
  51 };
  52
  53 struct wkup_m3_ipc *wkup_m3_ipc_get(void);
  54 void wkup_m3_ipc_put(struct wkup_m3_ipc *m3_ipc);
  55 #endif /* _LINUX_WKUP_M3_IPC_H */