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
|
/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2016 Scott Shawcroft for Adafruit Industries
* Copyright (c) 2019 Lucian Copeland for Adafruit Industries
*
* 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 "shared-bindings/microcontroller/Pin.h"
#include "shared-bindings/digitalio/DigitalInOut.h"
#include "supervisor/shared/rgb_led_status.h"
#include "py/mphal.h"
#include "pins.h"
#ifdef MICROPY_HW_NEOPIXEL
bool neopixel_in_use;
#endif
#if defined(TFBGA216)
GPIO_TypeDef * ports[] = {GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, GPIOF, GPIOG, GPIOH, GPIOI, GPIOJ, GPIOK};
#elif defined(LQFP144)
GPIO_TypeDef * ports[] = {GPIOA, GPIOB, GPIOC, GPIOD, GPIOE, GPIOF, GPIOG};
#elif defined(LQFP100_f4) || (LQFP100_x7)
GPIO_TypeDef * ports[] = {GPIOA, GPIOB, GPIOC, GPIOD, GPIOE};
#elif defined(LQFP64)
GPIO_TypeDef * ports[] = {GPIOA, GPIOB, GPIOC, GPIOD};
#elif defined(UFQFPN48)
GPIO_TypeDef * ports[] = {GPIOA, GPIOB, GPIOC};
#endif
#define GPIO_PORT_COUNT (MP_ARRAY_SIZE(ports))
STATIC uint16_t claimed_pins[GPIO_PORT_COUNT];
STATIC uint16_t __ALIGNED(4) never_reset_pins[GPIO_PORT_COUNT];
void reset_all_pins(void) {
// Reset claimed pins
for (uint8_t i = 0; i < GPIO_PORT_COUNT; i++) {
claimed_pins[i] = never_reset_pins[i];
}
for (uint8_t i = 0; i < GPIO_PORT_COUNT; i++) {
HAL_GPIO_DeInit(ports[i], ~never_reset_pins[i]);
}
#ifdef MICROPY_HW_NEOPIXEL
neopixel_in_use = false;
#endif
}
// Mark pin as free and return it to a quiescent state.
void reset_pin_number(uint8_t pin_port, uint8_t pin_number) {
if (pin_port == 0x0F) {
return;
}
// Clear claimed bit & reset
claimed_pins[pin_port] &= ~(1<<pin_number);
never_reset_pins[pin_port] &= ~(1<<pin_number);
HAL_GPIO_DeInit(ports[pin_port], 1<<pin_number);
#ifdef MICROPY_HW_NEOPIXEL
if (pin_port == MICROPY_HW_NEOPIXEL->port && pin_number == MICROPY_HW_NEOPIXEL->number) {
neopixel_in_use = false;
rgb_led_status_init();
return;
}
#endif
}
void never_reset_pin_number(uint8_t pin_port, uint8_t pin_number) {
never_reset_pins[pin_port] |= 1<<pin_number;
// Make sure never reset pins are also always claimed
claimed_pins[pin_port] |= 1<<pin_number;
}
void common_hal_never_reset_pin(const mcu_pin_obj_t* pin) {
never_reset_pin_number(pin->port, pin->number);
}
void common_hal_reset_pin(const mcu_pin_obj_t* pin) {
reset_pin_number(pin->port, pin->number);
}
void claim_pin(uint8_t pin_port, uint8_t pin_number) {
// Set bit in claimed_pins bitmask.
claimed_pins[pin_port] |= 1<<pin_number;
}
bool pin_number_is_free(uint8_t pin_port, uint8_t pin_number) {
return !(claimed_pins[pin_port] & 1<<pin_number);
}
bool common_hal_mcu_pin_is_free(const mcu_pin_obj_t *pin) {
#ifdef MICROPY_HW_NEOPIXEL
if (pin == MICROPY_HW_NEOPIXEL) {
return !neopixel_in_use;
}
#endif
return pin_number_is_free(pin->port, pin->number);
}
GPIO_TypeDef * pin_port(uint8_t pin_port) {
return ports[pin_port];
}
uint16_t pin_mask(uint8_t pin_number) {
return 1<<pin_number;
}
uint8_t common_hal_mcu_pin_number(const mcu_pin_obj_t* pin) {
return pin->port * 16 + pin->number;
}
void common_hal_mcu_pin_claim(const mcu_pin_obj_t* pin) {
claim_pin(pin->port, pin->number);
#ifdef MICROPY_HW_NEOPIXEL
if (pin == MICROPY_HW_NEOPIXEL) {
neopixel_in_use = true;
}
#endif
}
void common_hal_mcu_pin_reset_number(uint8_t pin_no) {
reset_pin_number(pin_no / 16, pin_no % 16);
}
|
