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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
#pragma once
#include "pb-types.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* \ingroup pbdrv-mod
* \defgroup pb_route Routing
* \internal
* \brief Parsed message handler routing
*
* These functions form a tree-shaped call graph, and are used to handle
* specific commands received from \c pb_i2c_recv().
*
* \{
*/
/**
* \brief Handle a message with type {\ref PB_CMD_PROP "PROP", \ref
* PB_CMD_STATE "STATE", \ref PB_CMD_MAGIC "MAGIC"}
*
* Calls the next handler depending on \c msg->type.
*/
void pb_route_msg(pb_msg_t * msg);
/**
* \brief Handle a \ref PB_CMD_PROP "PROP" message with action {\ref
* pb_route_cmd_prop_req "REQ", \ref pb_route_cmd_prop_res "RES", \ref
* pb_route_cmd_prop_set "SET"}
*
* Calls the next handler depending on \c msg->action.
*/
void pb_route_cmd_prop(pb_msg_t * msg);
/**
* \brief Handle a \ref PB_CMD_STATE "STATE" message with action {\ref
* pb_route_cmd_state_req "REQ", \ref pb_route_cmd_state_res "RES", \ref
* pb_route_cmd_state_set "SET"}
*
* Calls the next handler depending on \c msg->action.
*/
void pb_route_cmd_state(pb_msg_t * msg);
/**
* \brief Handle a \ref PB_CMD_MAGIC "MAGIC" message with action {\ref
* pb_route_cmd_magic_req "REQ", \ref pb_route_cmd_magic_res "RES"}
*
* Calls the next handler depending on \c msg->action.
*
* \note Messages with type \c MAGIC and action \c SET will be silently
* ignored, as there is no such command.
*/
void pb_route_cmd_magic(pb_msg_t * msg);
/**
* \brief Handle a \ref PB_CMD_PROP "PROP" message with action \ref
* PB_ACTION_REQ "REQ"
*
* The default implementation of this function is empty, as puzzle module
* properties are user-defined.
*/
void pb_route_cmd_prop_req(pb_msg_t * msg);
/**
* \brief Handle a \ref PB_CMD_PROP "PROP" message with action \ref
* PB_ACTION_RES "RES"
*
* The default implementation of this function is empty, as puzzle module
* properties are user-defined.
*/
void pb_route_cmd_prop_res(pb_msg_t * msg);
/**
* \brief Handle a \ref PB_CMD_PROP "PROP" message with action \ref
* PB_ACTION_SET "SET"
*
* The default implementation of this function is empty, as puzzle module
* properties are user-defined.
*/
void pb_route_cmd_prop_set(pb_msg_t * msg);
/**
* \brief Handle a \ref PB_CMD_STATE "STATE" message with action \ref
* PB_ACTION_REQ "REQ"
*
* The default implementation of this function does the following:
* - Call \c pb_hook_ev_module_init() if this is the first received \c STATE \c
* REQ command.
* - Call \c pb_hook_ev_main_state_update() if the main controller state has
* changed.
* - Reply with a \c STATE \c RES message.
*/
void pb_route_cmd_state_req(pb_msg_t * msg);
/**
* \brief Handle a \ref PB_CMD_STATE "STATE" message with action \ref
* PB_ACTION_RES "RES"
*
* The default implementation of this function is empty, as only the main
* controller handles this type of command.
*/
void pb_route_cmd_state_res(pb_msg_t * msg);
// TODO: add link to pb_route_cmd_state_res handler in main/i2c.c
/**
* \brief Handle a \ref PB_CMD_STATE "STATE" message with action \ref
* PB_ACTION_SET "SET"
*
* The default implementation of this function does the following:
* - Write the global state variable using \c pb_hook_mod_state_write().
*/
void pb_route_cmd_state_set(pb_msg_t * msg);
/**
* \brief Handle a \ref PB_CMD_MAGIC "MAGIC" message with action \ref
* PB_ACTION_REQ "REQ"
*
* The default implementation of this function does the following:
* - Verify the size of the magic string
* - Verify the content of the magic string
* - Reply with a \c MAGIC \c RES message.
*/
void pb_route_cmd_magic_req(pb_msg_t * msg);
/**
* \brief Handle a \ref PB_CMD_MAGIC "MAGIC" message with action \ref
* PB_ACTION_RES "RES"
*
* The default implementation of this function is empty, as only the main
* controller handles this type of command. (\ref main_route_cmd_magic_res
* "link")
*/
void pb_route_cmd_magic_res(pb_msg_t * msg);
/// \}
/**
* \ingroup pb_hook
* \defgroup pb_hook_route Routing
* \brief Conditionally use substitute or extend the built-in message handlers
* \{
*/
/**
* \brief \c pb_route_msg() hook
*
* The default implementation of this function immediately returns false.
*
* \return \c true if execution should continue to the default handler, or \c
* false if it should stop (i.e. the message was handled).
*/
bool pb_hook_route_msg(pb_msg_t * msg);
//! \c pb_route_cmd_prop() hook \copydetails pb_hook_route_msg
bool pb_hook_route_cmd_prop(pb_msg_t * msg);
//! \c pb_route_cmd_state() hook \copydetails pb_hook_route_msg
bool pb_hook_route_cmd_state(pb_msg_t * msg);
//! \c pb_route_cmd_magic() hook \copydetails pb_hook_route_msg
bool pb_hook_route_cmd_magic(pb_msg_t * msg);
/// \}
/**
* \ingroup pb_hook
* \defgroup pb_hook_ev Events
* \brief Functions called on puzzle bus-related events
* \{
*/
/**
* \brief Main controller state update hook
*
* The default implementation of this function is empty.
*
* \param state New state of main controller
*
* \note This function is also called when the first \c STATE \c REQ command is
* received, as the main controller state variable used to check if the state
* actually changed is initialized to \ref PB_GS_NOINIT. In this case, this
* function is called *after* \c pb_hook_ev_module_init().
*/
void pb_hook_ev_main_state_update(pb_global_state_t state);
/**
* \brief Module initialized hook
*
* The default implementation of this function calls \c
* pb_hook_mod_state_write() with \ref PB_GS_IDLE.
*
* This function is called when the first \c STATE \c REQ command is received,
* indicating this puzzle module has been registered successfully by the main
* controller, and is now part of an active play session.
*/
void pb_hook_ev_module_init();
/// \}
#ifdef __cplusplus
}
#endif
|