include/linux/wkup_m3_ipc.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  * TI Wakeup M3 for AMx3 SoCs Power Management Routines
   4  *
   5  * Copyright (C) 2015 Texas Instruments Incorporated - https://www.ti.com/
   6  * Dave Gerlach <d-gerlach@ti.com>
   7  */
   8
   9 #ifndef _LINUX_WKUP_M3_IPC_H
  10 #define _LINUX_WKUP_M3_IPC_H
  11
  12 #define WKUP_M3_DEEPSLEEP       1
  13 #define WKUP_M3_STANDBY         2
  14 #define WKUP_M3_IDLE            3
  15
  16 #include <linux/mailbox_client.h>
  17
  18 struct wkup_m3_ipc_ops;
  19
  20 struct wkup_m3_ipc {
  21         struct rproc *rproc;
  22
  23         void __iomem *ipc_mem_base;
  24         struct device *dev;
  25
  26         int mem_type;
  27         unsigned long resume_addr;
  28         int vtt_conf;
  29         int isolation_conf;
  30         int state;
  31         u32 halt;
  32
  33         unsigned long volt_scale_offsets;
  34         const char *sd_fw_name;
  35
  36         struct completion sync_complete;
  37         struct mbox_client mbox_client;
  38         struct mbox_chan *mbox;
  39
  40         struct wkup_m3_ipc_ops *ops;
  41         int is_rtc_only;
  42         struct dentry *dbg_path;
  43 };
  44
  45 struct wkup_m3_wakeup_src {
  46         int irq_nr;
  47         char src[10];
  48 };
  49
  50 struct wkup_m3_scale_data_header {
  51         u16 magic;
  52         u8 sleep_offset;
  53         u8 wake_offset;
  54 } __packed;
  55
  56 struct wkup_m3_ipc_ops {
  57         void (*set_mem_type)(struct wkup_m3_ipc *m3_ipc, int mem_type);
  58         void (*set_resume_address)(struct wkup_m3_ipc *m3_ipc, void *addr);
  59         int (*prepare_low_power)(struct wkup_m3_ipc *m3_ipc, int state);
  60         int (*finish_low_power)(struct wkup_m3_ipc *m3_ipc);
  61         int (*request_pm_status)(struct wkup_m3_ipc *m3_ipc);
  62         const char *(*request_wake_src)(struct wkup_m3_ipc *m3_ipc);
  63         void (*set_rtc_only)(struct wkup_m3_ipc *m3_ipc);
  64 };
  65
  66 struct wkup_m3_ipc *wkup_m3_ipc_get(void);
  67 void wkup_m3_ipc_put(struct wkup_m3_ipc *m3_ipc);
  68 void wkup_m3_set_rtc_only_mode(void);
  69 #endif /* _LINUX_WKUP_M3_IPC_H */