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 */
70
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