Zephyr API Documentation
4.0.0-rc2
A Scalable Open Source RTOS
Loading...
Searching...
No Matches
esp-pinctrl-common.h
Go to the documentation of this file.
1
/*
2
* Copyright (c) 2022 Espressif Systems (Shanghai) Co., Ltd.
3
*
4
* SPDX-License-Identifier: Apache-2.0
5
*/
6
7
#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_PINCTRL_ESP_PINCTRL_COMMON_H_
8
#define ZEPHYR_INCLUDE_DT_BINDINGS_PINCTRL_ESP_PINCTRL_COMMON_H_
9
10
#include <
zephyr/dt-bindings/dt-util.h
>
11
12
#define ESP32_PIN_NUM_SHIFT 0U
13
#define ESP32_PIN_NUM_MASK 0x3FU
14
15
/*
16
* Definitions used to extract I/O
17
* signal indexes used by the GPIO
18
* matrix signal routing mechanism
19
*/
20
#define ESP32_PIN_SIGI_MASK 0x1FFU
21
#define ESP32_PIN_SIGI_SHIFT 6U
22
#define ESP32_PIN_SIGO_MASK 0x1FFU
23
#define ESP32_PIN_SIGO_SHIFT 15U
24
#define ESP_SIG_INVAL ESP32_PIN_SIGI_MASK
25
26
#define ESP32_PINMUX(pin, sig_i, sig_o) \
27
(((pin & ESP32_PIN_NUM_MASK) << ESP32_PIN_NUM_SHIFT) | \
28
((sig_i & ESP32_PIN_SIGI_MASK) << ESP32_PIN_SIGI_SHIFT) | \
29
((sig_o & ESP32_PIN_SIGO_MASK) << ESP32_PIN_SIGO_SHIFT))
30
31
/*
32
* Definitions used to extract pin
33
* properties: bias, drive and
34
* initial pin level
35
*/
36
#define ESP32_PIN_BIAS_SHIFT 0U
37
#define ESP32_PIN_BIAS_MASK 0x3U
38
#define ESP32_PIN_DRV_SHIFT 2U
39
#define ESP32_PIN_DRV_MASK 0x3U
40
#define ESP32_PIN_OUT_SHIFT 4U
41
#define ESP32_PIN_OUT_MASK 0x3U
42
#define ESP32_PIN_EN_DIR_SHIFT 6U
43
#define ESP32_PIN_EN_DIR_MASK 0x3U
44
45
/* Bias definitions */
46
#define ESP32_NO_PULL 0x1
47
#define ESP32_PULL_UP 0x2
48
#define ESP32_PULL_DOWN 0x3
49
50
/* Pin drive definitions */
51
#define ESP32_PUSH_PULL 0x1
52
#define ESP32_OPEN_DRAIN 0x2
53
54
/*
55
* An output pin can be initialized
56
* to either high or low
57
*/
58
#define ESP32_PIN_OUT_HIGH 0x1
59
#define ESP32_PIN_OUT_LOW 0x2
60
61
/*
62
* Enable input or output on pin
63
* regardless of its direction
64
*/
65
#define ESP32_PIN_OUT_EN 0x1
66
#define ESP32_PIN_IN_EN 0x2
67
68
/*
69
* These flags are used by the pinctrl
70
* driver, based on the DTS properties
71
* assigned to a specific pin state
72
*/
73
#define ESP32_NO_PULL_FLAG BIT(0)
74
#define ESP32_PULL_UP_FLAG BIT(1)
75
#define ESP32_PULL_DOWN_FLAG BIT(2)
76
#define ESP32_PUSH_PULL_FLAG BIT(3)
77
#define ESP32_OPEN_DRAIN_FLAG BIT(4)
78
#define ESP32_DIR_INP_FLAG BIT(5)
79
#define ESP32_DIR_OUT_FLAG BIT(6)
80
#define ESP32_PIN_OUT_HIGH_FLAG BIT(7)
81
#define ESP32_PIN_OUT_LOW_FLAG BIT(8)
82
#define ESP32_PIN_OUT_EN_FLAG BIT(9)
83
#define ESP32_PIN_IN_EN_FLAG BIT(10)
84
85
#endif
/* ZEPHYR_INCLUDE_DT_BINDINGS_PINCTRL_ESP_PINCTRL_COMMON_H_ */
dt-util.h
zephyr
dt-bindings
pinctrl
esp-pinctrl-common.h
Generated on Sat Nov 9 2024 00:03:12 for Zephyr API Documentation by
1.12.0