-
-
Notifications
You must be signed in to change notification settings - Fork 7.4k
/
machine_uart.c
187 lines (153 loc) · 7.33 KB
/
machine_uart.c
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
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2023 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "py/runtime.h"
#include "py/stream.h"
#if MICROPY_PY_MACHINE_UART
#include "extmod/modmachine.h"
#include "shared/runtime/mpirq.h"
// The port must provide implementations of these low-level UART functions.
static void mp_machine_uart_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind);
static void mp_machine_uart_init_helper(machine_uart_obj_t *self, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args);
static mp_obj_t mp_machine_uart_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args);
static void mp_machine_uart_deinit(machine_uart_obj_t *self);
static mp_int_t mp_machine_uart_any(machine_uart_obj_t *self);
static bool mp_machine_uart_txdone(machine_uart_obj_t *self);
#if MICROPY_PY_MACHINE_UART_SENDBREAK
static void mp_machine_uart_sendbreak(machine_uart_obj_t *self);
#endif
#if MICROPY_PY_MACHINE_UART_READCHAR_WRITECHAR
static mp_int_t mp_machine_uart_readchar(machine_uart_obj_t *self);
static void mp_machine_uart_writechar(machine_uart_obj_t *self, uint16_t data);
#endif
#if MICROPY_PY_MACHINE_UART_IRQ
static mp_irq_obj_t *mp_machine_uart_irq(machine_uart_obj_t *self, bool any_args, mp_arg_val_t *args);
#endif
static mp_uint_t mp_machine_uart_read(mp_obj_t self_in, void *buf_in, mp_uint_t size, int *errcode);
static mp_uint_t mp_machine_uart_write(mp_obj_t self_in, const void *buf_in, mp_uint_t size, int *errcode);
static mp_uint_t mp_machine_uart_ioctl(mp_obj_t self_in, mp_uint_t request, uintptr_t arg, int *errcode);
// The port provides implementations of the above in this file.
#include MICROPY_PY_MACHINE_UART_INCLUDEFILE
// UART.init(...)
static mp_obj_t machine_uart_init(size_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
mp_machine_uart_init_helper(MP_OBJ_TO_PTR(args[0]), n_args - 1, args + 1, kw_args);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(machine_uart_init_obj, 1, machine_uart_init);
// UART.deinit()
static mp_obj_t machine_uart_deinit(mp_obj_t self_in) {
machine_uart_obj_t *self = MP_OBJ_TO_PTR(self_in);
mp_machine_uart_deinit(self);
return mp_const_none;
}
static MP_DEFINE_CONST_FUN_OBJ_1(machine_uart_deinit_obj, machine_uart_deinit);
// UART.any()
static mp_obj_t machine_uart_any(mp_obj_t self_in) {
machine_uart_obj_t *self = MP_OBJ_TO_PTR(self_in);
return MP_OBJ_NEW_SMALL_INT(mp_machine_uart_any(self));
}
static MP_DEFINE_CONST_FUN_OBJ_1(machine_uart_any_obj, machine_uart_any);
// UART.txdone()
static mp_obj_t machine_uart_txdone(mp_obj_t self_in) {
machine_uart_obj_t *self = MP_OBJ_TO_PTR(self_in);
return mp_obj_new_bool(mp_machine_uart_txdone(self));
}
static MP_DEFINE_CONST_FUN_OBJ_1(machine_uart_txdone_obj, machine_uart_txdone);
#if MICROPY_PY_MACHINE_UART_SENDBREAK
// UART.sendbreak()
static mp_obj_t machine_uart_sendbreak(mp_obj_t self_in) {
machine_uart_obj_t *self = MP_OBJ_TO_PTR(self_in);
mp_machine_uart_sendbreak(self);
return mp_const_none;
}
static MP_DEFINE_CONST_FUN_OBJ_1(machine_uart_sendbreak_obj, machine_uart_sendbreak);
#endif
#if MICROPY_PY_MACHINE_UART_READCHAR_WRITECHAR
// UART.readchar()
static mp_obj_t machine_uart_readchar(mp_obj_t self_in) {
machine_uart_obj_t *self = MP_OBJ_TO_PTR(self_in);
return MP_OBJ_NEW_SMALL_INT(mp_machine_uart_readchar(self));
}
static MP_DEFINE_CONST_FUN_OBJ_1(machine_uart_readchar_obj, machine_uart_readchar);
// UART.writechar(char)
static mp_obj_t machine_uart_writechar(mp_obj_t self_in, mp_obj_t char_in) {
machine_uart_obj_t *self = MP_OBJ_TO_PTR(self_in);
mp_machine_uart_writechar(self, mp_obj_get_int(char_in));
return mp_const_none;
}
static MP_DEFINE_CONST_FUN_OBJ_2(machine_uart_writechar_obj, machine_uart_writechar);
#endif
#if MICROPY_PY_MACHINE_UART_IRQ
// UART.irq(handler, trigger, hard)
static mp_obj_t machine_uart_irq(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
mp_arg_val_t args[MP_IRQ_ARG_INIT_NUM_ARGS];
mp_arg_parse_all(n_args - 1, pos_args + 1, kw_args, MP_IRQ_ARG_INIT_NUM_ARGS, mp_irq_init_args, args);
machine_uart_obj_t *self = MP_OBJ_TO_PTR(pos_args[0]);
bool any_args = n_args > 1 || kw_args->used != 0;
return MP_OBJ_FROM_PTR(mp_machine_uart_irq(self, any_args, args));
}
static MP_DEFINE_CONST_FUN_OBJ_KW(machine_uart_irq_obj, 1, machine_uart_irq);
#endif
static const mp_rom_map_elem_t machine_uart_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_init), MP_ROM_PTR(&machine_uart_init_obj) },
{ MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&machine_uart_deinit_obj) },
{ MP_ROM_QSTR(MP_QSTR_flush), MP_ROM_PTR(&mp_stream_flush_obj) },
{ MP_ROM_QSTR(MP_QSTR_read), MP_ROM_PTR(&mp_stream_read_obj) },
{ MP_ROM_QSTR(MP_QSTR_readline), MP_ROM_PTR(&mp_stream_unbuffered_readline_obj) },
{ MP_ROM_QSTR(MP_QSTR_readinto), MP_ROM_PTR(&mp_stream_readinto_obj) },
{ MP_ROM_QSTR(MP_QSTR_write), MP_ROM_PTR(&mp_stream_write_obj) },
{ MP_ROM_QSTR(MP_QSTR_any), MP_ROM_PTR(&machine_uart_any_obj) },
{ MP_ROM_QSTR(MP_QSTR_txdone), MP_ROM_PTR(&machine_uart_txdone_obj) },
#if MICROPY_PY_MACHINE_UART_SENDBREAK
{ MP_ROM_QSTR(MP_QSTR_sendbreak), MP_ROM_PTR(&machine_uart_sendbreak_obj) },
#endif
#if MICROPY_PY_MACHINE_UART_READCHAR_WRITECHAR
{ MP_ROM_QSTR(MP_QSTR_readchar), MP_ROM_PTR(&machine_uart_readchar_obj) },
{ MP_ROM_QSTR(MP_QSTR_writechar), MP_ROM_PTR(&machine_uart_writechar_obj) },
#endif
#if MICROPY_PY_MACHINE_UART_IRQ
{ MP_ROM_QSTR(MP_QSTR_irq), MP_ROM_PTR(&machine_uart_irq_obj) },
#endif
// A port must add UART class constants defining the following macro.
// It can be defined to nothing if there are no constants.
MICROPY_PY_MACHINE_UART_CLASS_CONSTANTS
};
static MP_DEFINE_CONST_DICT(machine_uart_locals_dict, machine_uart_locals_dict_table);
static const mp_stream_p_t uart_stream_p = {
.read = mp_machine_uart_read,
.write = mp_machine_uart_write,
.ioctl = mp_machine_uart_ioctl,
.is_text = false,
};
MP_DEFINE_CONST_OBJ_TYPE(
machine_uart_type,
MP_QSTR_UART,
MP_TYPE_FLAG_ITER_IS_STREAM,
make_new, mp_machine_uart_make_new,
print, mp_machine_uart_print,
protocol, &uart_stream_p,
locals_dict, &machine_uart_locals_dict
);
#endif // MICROPY_PY_MACHINE_UART