mirror of
https://github.com/RIOT-OS/RIOT.git
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142 lines
5.6 KiB
C
142 lines
5.6 KiB
C
/*
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* Copyright (C) 2022 Gunar Schorcht
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup cpu_esp32
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* @ingroup drivers_periph_gpio
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* @{
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*
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* @file
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* @brief Architecture-specific GPIO definitions for ESP32-S2 variant (family)
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*
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* @author Gunar Schorcht <gunar@schorcht.net>
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* @}
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*/
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#include "gpio_arch.h"
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#include "soc/io_mux_reg.h"
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#if !IS_USED(MODULE_ESP_IDF_GPIO_HAL)
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/* GPIO to IOMUX register mapping (see Technical Reference, Section 5.14.2 Register Summary)
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https://www.espressif.com/sites/default/files/documentation/esp32-s2_technical_reference_manual_en.pdf */
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const uint32_t _gpio_to_iomux_reg[GPIO_PIN_NUMOF] =
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{
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PERIPHS_IO_MUX_GPIO0_U, /* GPIO0 */
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PERIPHS_IO_MUX_GPIO1_U, /* GPIO1 */
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PERIPHS_IO_MUX_GPIO2_U, /* GPIO2 */
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PERIPHS_IO_MUX_GPIO3_U, /* GPIO3 */
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PERIPHS_IO_MUX_GPIO4_U, /* GPIO4 */
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PERIPHS_IO_MUX_GPIO5_U, /* GPIO5 */
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PERIPHS_IO_MUX_GPIO6_U, /* GPIO6 */
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PERIPHS_IO_MUX_GPIO7_U, /* GPIO7 */
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PERIPHS_IO_MUX_GPIO8_U, /* GPIO8 */
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PERIPHS_IO_MUX_GPIO9_U, /* GPIO9 */
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PERIPHS_IO_MUX_GPIO10_U, /* GPIO10 */
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PERIPHS_IO_MUX_GPIO11_U, /* GPIO11 */
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PERIPHS_IO_MUX_GPIO12_U, /* GPIO12 */
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PERIPHS_IO_MUX_GPIO13_U, /* GPIO13 */
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PERIPHS_IO_MUX_GPIO14_U, /* GPIO14 */
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PERIPHS_IO_MUX_XTAL_32K_P_U, /* GPIO15 used for 32k XTAL */
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PERIPHS_IO_MUX_XTAL_32K_N_U, /* GPIO16 used for 32k XTAL */
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PERIPHS_IO_MUX_DAC_1_U, /* GPIO17 */
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PERIPHS_IO_MUX_DAC_2_U, /* GPIO18 */
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PERIPHS_IO_MUX_GPIO19_U, /* GPIO19 */
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PERIPHS_IO_MUX_GPIO20_U, /* GPIO20 */
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PERIPHS_IO_MUX_GPIO21_U, /* GPIO21 */
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0, /* GPIO22 is not available */
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0, /* GPIO23 is not available */
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0, /* GPIO24 is not available */
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0, /* GPIO25 is not available */
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PERIPHS_IO_MUX_SPICS1_U, /* GPIO26 used as SPI CS1 */
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PERIPHS_IO_MUX_SPIHD_U, /* GPIO27 used as SPI HS for Flash */
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PERIPHS_IO_MUX_SPIWP_U, /* GPIO28 used as SPI WP for Flash */
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PERIPHS_IO_MUX_SPICS0_U, /* GPIO29 used as SPI CS0 for Flash */
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PERIPHS_IO_MUX_SPICLK_U, /* GPIO30 used as SPI CLK for Flash */
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PERIPHS_IO_MUX_SPID_U, /* GPIO31 used as SPI D for Flash */
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PERIPHS_IO_MUX_SPIQ_U, /* GPIO32 used as SPI Q for Flash */
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PERIPHS_IO_MUX_GPIO33_U, /* GPIO33 */
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PERIPHS_IO_MUX_GPIO34_U, /* GPIO34 */
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PERIPHS_IO_MUX_GPIO35_U, /* GPIO35 */
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PERIPHS_IO_MUX_GPIO36_U, /* GPIO36 */
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PERIPHS_IO_MUX_GPIO37_U, /* GPIO37 */
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PERIPHS_IO_MUX_GPIO38_U, /* GPIO38 */
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PERIPHS_IO_MUX_MTCK_U, /* GPIO39 used as JTAG*/
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PERIPHS_IO_MUX_MTDO_U, /* GPIO40 used as JTAG*/
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PERIPHS_IO_MUX_MTDI_U, /* GPIO41 used as JTAG*/
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PERIPHS_IO_MUX_MTMS_U, /* GPIO42 used as JTAG*/
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PERIPHS_IO_MUX_U0TXD_U, /* GPIO43 used as UART0 TxD */
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PERIPHS_IO_MUX_U0RXD_U, /* GPIO44 used as UART0 RxD */
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PERIPHS_IO_MUX_GPIO45_U, /* GPIO45 */
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PERIPHS_IO_MUX_GPIO46_U, /* GPIO46 */
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};
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#endif /* !IS_USED(MODULE_ESP_IDF_GPIO_HAL) */
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/* Table of the usage type of each GPIO pin */
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gpio_pin_usage_t _gpio_pin_usage[GPIO_PIN_NUMOF] = {
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_GPIO, /* GPIO0 */
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_GPIO, /* GPIO1 */
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_GPIO, /* GPIO2 */
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_GPIO, /* GPIO3 */
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_GPIO, /* GPIO4 */
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_GPIO, /* GPIO5 */
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_GPIO, /* GPIO6 */
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_GPIO, /* GPIO7 */
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_GPIO, /* GPIO8 */
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_GPIO, /* GPIO9 */
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_GPIO, /* GPIO10 */
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_GPIO, /* GPIO11 */
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_GPIO, /* GPIO12 */
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_GPIO, /* GPIO13 */
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_GPIO, /* GPIO14 */
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#if MODULE_ESP_RTC_TIMER_32K
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_NOT_EXIST, /* GPIO15 is used for external 32K crystal */
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_NOT_EXIST, /* GPIO16 is used for external 32K crystal */
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#else
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_GPIO, /* GPIO15 */
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_GPIO, /* GPIO16 */
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#endif
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_GPIO, /* GPIO17 */
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_GPIO, /* GPIO18 */
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_GPIO, /* GPIO19 could be used for ESP USB/builtin USB2JTAG bridge */
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_GPIO, /* GPIO20 could be used for ESP USB/builtin USB2JTAG bridge */
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_GPIO, /* GPIO21 */
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_NOT_EXIST, /* GPIO22 does not exist */
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_NOT_EXIST, /* GPIO23 does not exist */
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_NOT_EXIST, /* GPIO24 does not exist */
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_NOT_EXIST, /* GPIO25 does not exist */
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_NOT_EXIST, /* GPIO26 is used as direct I/O SPI CS1 for Flash/PSRAM */
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#if defined(FLASH_MODE_QIO) || defined(FLASH_MODE_QOUT)
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_SPIF, /* GPIO27 is used as direct I/O SPI HD for Flash/PSRAM */
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_SPIF, /* GPIO28 is used as direct I/O SPI WP for Flash/PSRAM */
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#else
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_GPIO, /* GPIO27 */
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_GPIO, /* GPIO28 */
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#endif
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_SPIF, /* GPIO29 is used as direct I/O SPI CS0 for Flash/PSRAM */
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_SPIF, /* GPIO30 is used as direct I/O SPI CLK for Flash/PSRAM */
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_SPIF, /* GPIO31 is used as direct I/O SPI Q for Flash/PSRAM */
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_SPIF, /* GPIO32 is used as direct I/O SPI D for Flash/PSRAM */
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_GPIO, /* GPIO33 */
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_GPIO, /* GPIO34 */
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_GPIO, /* GPIO35 */
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_GPIO, /* GPIO36 */
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_GPIO, /* GPIO37 */
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_GPIO, /* GPIO38 */
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_GPIO, /* GPIO39 */
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_GPIO, /* GPIO40 */
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_GPIO, /* GPIO41 */
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_GPIO, /* GPIO42 */
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_UART, /* GPIO43 is used as direct I/O UART0 TxD */
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_UART, /* GPIO44 is used as direct I/O UART0 RxD */
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_GPIO, /* GPIO45 */
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_GPIO, /* GPIO46 */
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};
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