diff --git a/boards/xtensa/esp32/esp32-devkitc/configs/pwm/defconfig b/boards/xtensa/esp32/esp32-devkitc/configs/pwm/defconfig new file mode 100644 index 00000000000..0a620e4b350 --- /dev/null +++ b/boards/xtensa/esp32/esp32-devkitc/configs/pwm/defconfig @@ -0,0 +1,55 @@ +# +# This file is autogenerated: PLEASE DO NOT EDIT IT. +# +# You can use "make menuconfig" to make any modifications to the installed .config file. +# You can then do "make savedefconfig" to generate a new defconfig file that includes your +# modifications. +# +# CONFIG_ARCH_LEDS is not set +# CONFIG_NSH_ARGCAT is not set +# CONFIG_NSH_CMDOPT_HEXDUMP is not set +# CONFIG_NSH_CMDPARMS is not set +CONFIG_ARCH="xtensa" +CONFIG_ARCH_BOARD="esp32-devkitc" +CONFIG_ARCH_BOARD_ESP32_DEVKITC=y +CONFIG_ARCH_CHIP="esp32" +CONFIG_ARCH_CHIP_ESP32=y +CONFIG_ARCH_CHIP_ESP32WROVER=y +CONFIG_ARCH_STACKDUMP=y +CONFIG_ARCH_XTENSA=y +CONFIG_BOARD_LOOPSPERMSEC=16717 +CONFIG_BUILTIN=y +CONFIG_ESP32_LEDC=y +CONFIG_ESP32_LEDC_CHANNEL0_PIN=12 +CONFIG_ESP32_LEDC_CHANNEL1_PIN=13 +CONFIG_ESP32_LEDC_CHANNEL2_PIN=14 +CONFIG_ESP32_LEDC_CHANNEL3_PIN=15 +CONFIG_ESP32_LEDC_TIM0=y +CONFIG_ESP32_LEDC_TIM1=y +CONFIG_ESP32_UART0=y +CONFIG_EXAMPLES_PWM=y +CONFIG_EXAMPLES_PWM_FREQUENCY=10000 +CONFIG_FS_PROCFS=y +CONFIG_HAVE_CXX=y +CONFIG_HAVE_CXXINITIALIZE=y +CONFIG_IDLETHREAD_STACKSIZE=3072 +CONFIG_INIT_ENTRYPOINT="nsh_main" +CONFIG_INTELHEX_BINARY=y +CONFIG_MM_REGIONS=3 +CONFIG_NSH_ARCHINIT=y +CONFIG_NSH_BUILTIN_APPS=y +CONFIG_NSH_FILEIOSIZE=512 +CONFIG_NSH_LINELEN=64 +CONFIG_NSH_READLINE=y +CONFIG_PREALLOC_TIMERS=4 +CONFIG_RAM_SIZE=114688 +CONFIG_RAM_START=0x20000000 +CONFIG_RAW_BINARY=y +CONFIG_RR_INTERVAL=200 +CONFIG_SCHED_WAITPID=y +CONFIG_SDCLONE_DISABLE=y +CONFIG_START_DAY=6 +CONFIG_START_MONTH=12 +CONFIG_START_YEAR=2011 +CONFIG_SYSTEM_NSH=y +CONFIG_UART0_SERIAL_CONSOLE=y diff --git a/boards/xtensa/esp32/esp32-devkitc/src/Make.defs b/boards/xtensa/esp32/esp32-devkitc/src/Make.defs index 9400680ddca..dcc7c6b43cb 100644 --- a/boards/xtensa/esp32/esp32-devkitc/src/Make.defs +++ b/boards/xtensa/esp32/esp32-devkitc/src/Make.defs @@ -39,6 +39,10 @@ ifeq ($(CONFIG_DEV_GPIO),y) CSRCS += esp32_gpio.c endif +ifeq ($(CONFIG_PWM),y) +CSRCS += esp32_ledc.c +endif + ifeq ($(CONFIG_USERLED),y) CSRCS += esp32_userleds.c endif diff --git a/boards/xtensa/esp32/esp32-devkitc/src/esp32-devkitc.h b/boards/xtensa/esp32/esp32-devkitc/src/esp32-devkitc.h index ed5055654a7..2640f5a01d0 100644 --- a/boards/xtensa/esp32/esp32-devkitc/src/esp32-devkitc.h +++ b/boards/xtensa/esp32/esp32-devkitc/src/esp32-devkitc.h @@ -109,6 +109,18 @@ int esp32_mmcsd_initialize(int minor); int esp32_gpio_init(void); #endif +/**************************************************************************** + * Name: esp32_ledc_setup + * + * Description: + * Initialize LEDC PWM and register the PWM device. + * + ****************************************************************************/ + +#ifdef CONFIG_ESP32_LEDC +int esp32_pwm_setup(void); +#endif + /**************************************************************************** * Name: board_spidev_initialize * diff --git a/boards/xtensa/esp32/esp32-devkitc/src/esp32_bringup.c b/boards/xtensa/esp32/esp32-devkitc/src/esp32_bringup.c index b14cab07cc4..393e9025632 100644 --- a/boards/xtensa/esp32/esp32-devkitc/src/esp32_bringup.c +++ b/boards/xtensa/esp32/esp32-devkitc/src/esp32_bringup.c @@ -223,6 +223,14 @@ int esp32_bringup(void) } #endif +#ifdef CONFIG_ESP32_LEDC + ret = esp32_pwm_setup(); + if (ret < 0) + { + syslog(LOG_ERR, "ERROR: esp32_pwm_setup() failed: %d\n", ret); + } +#endif /* CONFIG_ESP32_LEDC */ + #ifdef CONFIG_ESP32_RT_TIMER ret = esp32_rt_timer_init(); if (ret < 0) diff --git a/boards/xtensa/esp32/esp32-devkitc/src/esp32_ledc.c b/boards/xtensa/esp32/esp32-devkitc/src/esp32_ledc.c new file mode 100644 index 00000000000..ed858387004 --- /dev/null +++ b/boards/xtensa/esp32/esp32-devkitc/src/esp32_ledc.c @@ -0,0 +1,134 @@ +/**************************************************************************** + * boards/xtensa/esp32/esp32-devkitc/src/esp32_ledc.c + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. The + * ASF licenses this file to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance with the + * License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the + * License for the specific language governing permissions and limitations + * under the License. + * + ****************************************************************************/ + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include + +#include +#include +#include + +#include +#include + +#include + +#include "chip.h" +#include "esp32_ledc.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: esp32_pwm_setup + * + * Description: + * Initialize LEDC PWM and register the PWM device. + * + ****************************************************************************/ + +int esp32_pwm_setup(void) +{ + int ret; + struct pwm_lowerhalf_s *pwm; + +#ifdef CONFIG_ESP32_LEDC_TIM0 + pwm = esp32_ledc_init(0); + if (!pwm) + { + syslog(LOG_ERR, "ERROR: Failed to get the LEDC PWM 0 lower half\n"); + return -ENODEV; + } + + /* Register the PWM driver at "/dev/pwm0" */ + + ret = pwm_register("/dev/pwm0", pwm); + if (ret < 0) + { + syslog(LOG_ERR, "ERROR: pwm_register failed: %d\n", ret); + return ret; + } +#endif + +#ifdef CONFIG_ESP32_LEDC_TIM1 + pwm = esp32_ledc_init(1); + if (!pwm) + { + syslog(LOG_ERR, "ERROR: Failed to get the LEDC PWM 1 lower half\n"); + return -ENODEV; + } + + /* Register the PWM driver at "/dev/pwm1" */ + + ret = pwm_register("/dev/pwm1", pwm); + if (ret < 0) + { + syslog(LOG_ERR, "ERROR: pwm_register failed: %d\n", ret); + return ret; + } +#endif + +#ifdef CONFIG_ESP32_LEDC_TIM2 + pwm = esp32_ledc_init(2); + if (!pwm) + { + syslog(LOG_ERR, "ERROR: Failed to get the LEDC PWM 2 lower half\n"); + return -ENODEV; + } + + /* Register the PWM driver at "/dev/pwm2" */ + + ret = pwm_register("/dev/pwm2", pwm); + if (ret < 0) + { + syslog(LOG_ERR, "ERROR: pwm_register failed: %d\n", ret); + return ret; + } +#endif + +#ifdef CONFIG_ESP32_LEDC_TIM3 + pwm = esp32_ledc_init(3); + if (!pwm) + { + syslog(LOG_ERR, "ERROR: Failed to get the LEDC PWM 3 lower half\n"); + return -ENODEV; + } + + /* Register the PWM driver at "/dev/pwm3" */ + + ret = pwm_register("/dev/pwm3", pwm); + if (ret < 0) + { + syslog(LOG_ERR, "ERROR: pwm_register failed: %d\n", ret); + return ret; + } +#endif + + return OK; +} +