Zephyr Project API  3.3.0
A Scalable Open Source RTOS
gecko-pinctrl.h
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1/*
2 * Copyright (c) 2022 Silicon Labs
3 * SPDX-License-Identifier: Apache-2.0
4 */
5
6#ifndef ZEPHYR_INCLUDE_DT_BINDINGS_PINCTRL_GECKO_PINCTRL_H_
7#define ZEPHYR_INCLUDE_DT_BINDINGS_PINCTRL_GECKO_PINCTRL_H_
8
9/*
10 * The whole GECKO_pin configuration information is encoded in a 32-bit bitfield
11 * organized as follows:
12 *
13 * - 31..24: Pin function.
14 * - 23..16: Reserved.
15 * - 15..8: Port for UART_RX/UART_TX functions.
16 * - 7..0: Pin number for UART_RX/UART_TX functions.
17 * - 15..8: Reserved for UART_LOC function.
18 * - 7..0: Loc for UART_LOC function.
19 */
20
27#define GECKO_FUN_POS 24U
29#define GECKO_FUN_MSK 0xFFFU
30
32#define GECKO_PIN_POS 0U
34#define GECKO_PIN_MSK 0xFFU
35
37#define GECKO_PORT_POS 8U
39#define GECKO_PORT_MSK 0xFFU
40
42#define GECKO_LOC_POS 0U
44#define GECKO_LOC_MSK 0xFFU
45
54#define GECKO_FUN_UART_TX 0U
56#define GECKO_FUN_UART_RX 1U
58#define GECKO_FUN_UART_RTS 2U
60#define GECKO_FUN_UART_CTS 3U
62#define GECKO_FUN_UART_LOC 4U
63
64#define GECKO_FUN_SPI_MISO 5U
65#define GECKO_FUN_SPI_MOSI 6U
66#define GECKO_FUN_SPI_CSN 7U
67#define GECKO_FUN_SPI_SCK 8U
68
78#define GECKO_PSEL(fun, port, pin) \
79 (((GECKO_PORT_##port & GECKO_PORT_MSK) << GECKO_PORT_POS) | \
80 ((GECKO_PIN(##pin##) & GECKO_PIN_MSK) << GECKO_PIN_POS) | \
81 ((GECKO_FUN_##fun & GECKO_FUN_MSK) << GECKO_FUN_POS))
82
89#define GECKO_LOC(fun, loc) \
90 (((GECKO_LOCATION(##loc##) & GECKO_LOC_MSK) << GECKO_LOC_POS) | \
91 ((GECKO_FUN_##fun##_LOC & GECKO_FUN_MSK) << GECKO_FUN_POS))
92
93#endif /* ZEPHYR_INCLUDE_DT_BINDINGS_PINCTRL_GECKO_PINCTRL_H_ */