grblHAL core  20250514
expanders_init.h
Go to the documentation of this file.
1 /*
2  expanders_init.h - An embedded CNC Controller with rs274/ngc (g-code) support
3 
4  Calls the init function of enabled expanders, this file is typically included early in driver.h
5  io_expanders_init() should be called at the end of the drivers driver_init() implementation,
6  just before the driver claims ports.
7 
8  These are NOT referenced in the core grbl code
9 
10  Part of grblHAL
11 
12  Copyright (c) 2025 Terje Io
13 
14  grblHAL is free software: you can redistribute it and/or modify
15  it under the terms of the GNU General Public License as published by
16  the Free Software Foundation, either version 3 of the License, or
17  (at your option) any later version.
18 
19  grblHAL is distributed in the hope that it will be useful,
20  but WITHOUT ANY WARRANTY; without even the implied warranty of
21  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22  GNU General Public License for more details.
23 
24  You should have received a copy of the GNU General Public License
25  along with grblHAL. If not, see <http://www.gnu.org/licenses/>.
26 */
27 
28 #pragma once
29 
30 extern void board_ports_init (void); // default is a weak function
31 
32 // I2C expanders
33 
34 #if PCA9654E_ENABLE || MCP3221_ENABLE || MCP4725_ENABLE
35 
36 #if defined(I2C_ENABLE) && !I2C_ENABLE
37 #undef I2C_ENABLE
38 #endif
39 
40 #ifndef I2C_ENABLE
41 #define I2C_ENABLE 1
42 #endif
43 
44 #if MCP3221_ENABLE
45 extern void mcp3221_init (void);
46 #endif
47 
48 #if MCP4725_ENABLE
49 extern void mcp4725_init (void);
50 #endif
51 
52 #if PCA9654E_ENABLE
53 extern void pca9654e_init(void);
54 #endif
55 
56 // Third party I2C expander plugins goes after this line
57 
58 #endif // I2C expanders
59 
60 // SPI expanders
61 
62 //
63 
64 // ModBus expanders
65 
66 #if PICOHAL_IO_ENABLE || R4SLS08_ENABLE
67 
68 #if !defined(MODBUS_ENABLE) || !(MODBUS_ENABLE & MODBUS_RTU_ENABLED)
69 #error "Enabled IO expander(s) require Modbus RTU!"
70 #endif
71 
72 #if R4SLS08_ENABLE
73 extern void r4sls08_init (void);
74 #endif
75 
76 // Third party Modbus expander plugins goes after this line
77 
78 #if PICOHAL_IO_ENABLE
79 extern void picohal_io_init (void);
80 #endif
81 
82 #endif // ModBus expanders
83 
84 // CANBus expanders
85 
86 //
87 
88 // Other expanders
89 
90 //
91 
92 static inline void io_expanders_init (void)
93 {
94  board_ports_init(); // can be implemented by board specific code
95 
96 #if MCP3221_ENABLE
97  mcp3221_init();
98 #endif
99 
100 #if MCP4725_ENABLE
101  mcp4725_init();
102 #endif
103 
104 #if R4SLS08_ENABLE
105  r4sls08_init();
106 #endif
107 
108 #if PCA9654E_ENABLE
109  pca9654e_init();
110 #endif
111 
112 #if PICOHAL_IO_ENABLE
113  picohal_io_init();
114 #endif
115 }
board_ports_init
void board_ports_init(void)
Definition: grbllib.c:103