1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
/* SPDX-License-Identifier: GPL-2.0-only
*
* Copyright (c) 2021, MediaTek Inc.
* Copyright (c) 2021-2022, Intel Corporation.
*
* Authors:
* Amir Hanania <amir.hanania@intel.com>
* Haijun Liu <haijun.liu@mediatek.com>
* Moises Veleta <moises.veleta@intel.com>
*
* Contributors:
* Eliot Lee <eliot.lee@intel.com>
* Ricardo Martinez <ricardo.martinez@linux.intel.com>
* Sreehari Kancharla <sreehari.kancharla@intel.com>
*/
#ifndef __T7XX_MONITOR_H__
#define __T7XX_MONITOR_H__
#include <linux/bits.h>
#include <linux/sched.h>
#include <linux/spinlock.h>
#include <linux/types.h>
#include <linux/wait.h>
#include "t7xx_modem_ops.h"
enum t7xx_fsm_state {
FSM_STATE_INIT,
FSM_STATE_PRE_START,
FSM_STATE_STARTING,
FSM_STATE_READY,
FSM_STATE_EXCEPTION,
FSM_STATE_STOPPING,
FSM_STATE_STOPPED,
};
enum t7xx_fsm_event_state {
FSM_EVENT_INVALID,
FSM_EVENT_MD_HS2,
FSM_EVENT_MD_EX,
FSM_EVENT_MD_EX_REC_OK,
FSM_EVENT_MD_EX_PASS,
FSM_EVENT_MD_HS2_EXIT,
FSM_EVENT_MAX
};
enum t7xx_fsm_cmd_state {
FSM_CMD_INVALID,
FSM_CMD_START,
FSM_CMD_EXCEPTION,
FSM_CMD_PRE_STOP,
FSM_CMD_STOP,
};
enum t7xx_ex_reason {
EXCEPTION_HS_TIMEOUT,
EXCEPTION_EVENT,
};
enum t7xx_md_irq_type {
MD_IRQ_WDT,
MD_IRQ_CCIF_EX,
MD_IRQ_PORT_ENUM,
};
enum md_state {
MD_STATE_INVALID,
MD_STATE_WAITING_FOR_HS1,
MD_STATE_WAITING_FOR_HS2,
MD_STATE_READY,
MD_STATE_EXCEPTION,
MD_STATE_WAITING_TO_STOP,
MD_STATE_STOPPED,
};
#define FSM_CMD_FLAG_WAIT_FOR_COMPLETION BIT(0)
#define FSM_CMD_FLAG_FLIGHT_MODE BIT(1)
#define FSM_CMD_FLAG_IN_INTERRUPT BIT(2)
#define FSM_CMD_EX_REASON GENMASK(23, 16)
struct t7xx_fsm_ctl {
struct t7xx_modem *md;
enum md_state md_state;
unsigned int curr_state;
struct list_head command_queue;
struct list_head event_queue;
wait_queue_head_t command_wq;
wait_queue_head_t event_wq;
wait_queue_head_t async_hk_wq;
spinlock_t event_lock; /* Protects event queue */
spinlock_t command_lock; /* Protects command queue */
struct task_struct *fsm_thread;
bool exp_flg;
spinlock_t notifier_lock; /* Protects notifier list */
struct list_head notifier_list;
};
struct t7xx_fsm_event {
struct list_head entry;
enum t7xx_fsm_event_state event_id;
unsigned int length;
unsigned char data[];
};
struct t7xx_fsm_command {
struct list_head entry;
enum t7xx_fsm_cmd_state cmd_id;
unsigned int flag;
struct completion *done;
int *ret;
};
struct t7xx_fsm_notifier {
struct list_head entry;
int (*notifier_fn)(enum md_state state, void *data);
void *data;
};
int t7xx_fsm_append_cmd(struct t7xx_fsm_ctl *ctl, enum t7xx_fsm_cmd_state cmd_id,
unsigned int flag);
int t7xx_fsm_append_event(struct t7xx_fsm_ctl *ctl, enum t7xx_fsm_event_state event_id,
unsigned char *data, unsigned int length);
void t7xx_fsm_clr_event(struct t7xx_fsm_ctl *ctl, enum t7xx_fsm_event_state event_id);
void t7xx_fsm_broadcast_state(struct t7xx_fsm_ctl *ctl, enum md_state state);
void t7xx_fsm_reset(struct t7xx_modem *md);
int t7xx_fsm_init(struct t7xx_modem *md);
void t7xx_fsm_uninit(struct t7xx_modem *md);
int t7xx_fsm_recv_md_intr(struct t7xx_fsm_ctl *ctl, enum t7xx_md_irq_type type);
enum md_state t7xx_fsm_get_md_state(struct t7xx_fsm_ctl *ctl);
unsigned int t7xx_fsm_get_ctl_state(struct t7xx_fsm_ctl *ctl);
void t7xx_fsm_notifier_register(struct t7xx_modem *md, struct t7xx_fsm_notifier *notifier);
void t7xx_fsm_notifier_unregister(struct t7xx_modem *md, struct t7xx_fsm_notifier *notifier);
#endif /* __T7XX_MONITOR_H__ */
|
