forked from nuttx/nuttx-update
esp32/common: Added support for rgb led driver on esp32
Signed-off-by: simonatoaca <simona.alexandra2000@gmail.com> esp32-sparrow-kit: Added rgb led driver to bringup and to defconfig Signed-off-by: simonatoaca <simona.alexandra2000@gmail.com> Fixed checkstyle Signed-off-by: simonatoaca <simona.alexandra2000@gmail.com> Update esp32_rgbled.h Update boards/xtensa/esp32/common/src/esp32_rgbled.c Co-authored-by: Petro Karashchenko <petro.karashchenko@gmail.com> Update boards/xtensa/esp32/common/src/esp32_rgbled.c Co-authored-by: Petro Karashchenko <petro.karashchenko@gmail.com> Update boards/xtensa/esp32/common/src/esp32_rgbled.c Co-authored-by: Petro Karashchenko <petro.karashchenko@gmail.com> Update boards/xtensa/esp32/common/src/esp32_rgbled.c Co-authored-by: Petro Karashchenko <petro.karashchenko@gmail.com> Removed ret 0 as an error in the case of nx_write()
This commit is contained in:
simonatoaca
Alan Carvalho de Assis
parent
c3576d79d9
commit
a4708d217a
5 changed files with 274 additions and 0 deletions
89
boards/xtensa/esp32/common/include/esp32_rgbled.h
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89
boards/xtensa/esp32/common/include/esp32_rgbled.h
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@ -0,0 +1,89 @@
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/****************************************************************************
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* boards/xtensa/esp32/common/include/esp32_rgbled.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifndef __BOARDS_XTENSA_ESP32_COMMON_INCLUDE_ESP32_RGBLED_H
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#define __BOARDS_XTENSA_ESP32_COMMON_INCLUDE_ESP32_RGBLED_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#define RGB_LED_TIMER TIMER0
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#define RGB_R_CHANN 0
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#define RGB_G_CHANN 1
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#define RGB_B_CHANN 2
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/****************************************************************************
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* Type Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef __cplusplus
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Inline Functions
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****************************************************************************/
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: esp32_rgbled_initialize
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*
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* Description:
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*
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*
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* Input Parameters:
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* devname - The name under which the RGB led will be registered
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*
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* Returned Value:
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* Zero (OK) on success; a negated errno value on failure.
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*
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****************************************************************************/
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int esp32_rgbled_initialize(const char *devname);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* __BOARDS_XTENSA_ESP32_COMMON_INCLUDE_ESP32_RGBLED_H */
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@ -120,6 +120,10 @@ ifeq ($(CONFIG_LCD_SSD1680),y)
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CSRCS += esp32_ssd1680.c
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endif
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ifeq ($(CONFIG_RGBLED),y)
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CSRCS += esp32_rgbled.c
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endif
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DEPPATH += --dep-path src
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VPATH += :src
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CFLAGS += ${INCDIR_PREFIX}$(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)src
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152
boards/xtensa/esp32/common/src/esp32_rgbled.c
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boards/xtensa/esp32/common/src/esp32_rgbled.c
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@ -0,0 +1,152 @@
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/****************************************************************************
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* boards/xtensa/esp32/common/src/esp32_rgbled.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <debug.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <errno.h>
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#include <nuttx/board.h>
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#include <arch/board/board.h>
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#include <nuttx/fs/fs.h>
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#include <nuttx/timers/pwm.h>
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#include <nuttx/leds/rgbled.h>
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#include "esp32-sparrow-kit.h"
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#include "esp32_gpio.h"
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#include "esp32_ledc.h"
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#include "esp32_rgbled.h"
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#if defined(CONFIG_ESP32_TIMER0) && \
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defined(CONFIG_ESP32_LEDC) && \
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defined(CONFIG_ESP32_LEDC_TIM0) && \
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(CONFIG_ESP32_LEDC_TIM0_CHANNELS >= 3) && \
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defined(CONFIG_PWM_MULTICHAN) && (CONFIG_PWM_NCHANNELS >= 3)
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: esp32_rgbled_initialize
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*
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* Description:
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* Initialize support for RGB LED using PWM.
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*
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****************************************************************************/
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int esp32_rgbled_initialize(const char *devname)
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{
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static bool initialized = false;
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FAR struct pwm_lowerhalf_s *ledr;
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FAR struct pwm_lowerhalf_s *ledg;
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FAR struct pwm_lowerhalf_s *ledb;
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int ret;
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/* Have we already initialized? */
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if (!initialized)
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{
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ledr = esp32_ledc_init(RGB_LED_TIMER);
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if (!ledr)
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{
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lederr("ERROR: Failed to get the ESP32 PWM lower half to LEDR\n");
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return -ENODEV;
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}
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/* Initialize LED R */
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ledr->ops->setup(ledr);
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ledg = esp32_ledc_init(RGB_LED_TIMER);
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if (!ledg)
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{
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lederr("ERROR: Failed to get the ESP32 PWM lower half to LEDG\n");
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return -ENODEV;
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}
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/* Initialize LED G */
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ledg->ops->setup(ledg);
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ledb = esp32_ledc_init(RGB_LED_TIMER);
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if (!ledb)
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{
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lederr("ERROR: Failed to get the ESP32 PWM lower half to LEDB\n");
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return -ENODEV;
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}
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/* Initialize LED B */
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ledb->ops->setup(ledb);
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/* Register the RGB LED diver at <devname> */
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ret = rgbled_register(devname, ledr, ledg, ledb, RGB_R_CHANN,
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RGB_G_CHANN,
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RGB_B_CHANN);
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if (ret < 0)
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{
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lederr("ERROR: rgbled_register failed: %d\n", ret);
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return ret;
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}
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int fd = nx_open(devname, O_WRONLY);
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if (fd < 0)
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{
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lederr("ERROR: rgbled_open failed\n");
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return fd;
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}
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/* Turn OFF the LED */
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ret = nx_write(fd, "#000000", 8);
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nx_close(fd);
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if (ret < 0)
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{
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lederr("ERROR: rgbled_write failed: %d\n", ret);
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return ret;
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}
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/* Now we are initialized */
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initialized = true;
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}
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return OK;
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}
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#else
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# error "RGB LED bad configuration"
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#endif
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@ -27,11 +27,18 @@ CONFIG_BUILTIN=y
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CONFIG_DRIVERS_VIDEO=y
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CONFIG_ESP32_I2C0=y
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CONFIG_ESP32_I2C0_SDAPIN=21
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CONFIG_ESP32_LEDC=y
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CONFIG_ESP32_LEDC_CHANNEL0_PIN=14
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CONFIG_ESP32_LEDC_CHANNEL1_PIN=13
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CONFIG_ESP32_LEDC_CHANNEL2_PIN=15
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CONFIG_ESP32_LEDC_TIM0=y
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CONFIG_ESP32_LEDC_TIM0_CHANNELS=3
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CONFIG_ESP32_SPI2=y
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CONFIG_ESP32_SPI2_CLKPIN=18
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CONFIG_ESP32_SPI2_CSPIN=5
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CONFIG_ESP32_SPI2_MISOPIN=19
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CONFIG_ESP32_SPI2_MOSIPIN=23
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CONFIG_ESP32_TIMER0=y
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CONFIG_ESP32_UART0=y
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CONFIG_FAT_LCNAMES=y
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CONFIG_FAT_LFN=y
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@ -58,8 +65,14 @@ CONFIG_NSH_LINELEN=64
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CONFIG_NSH_MMCSDSPIPORTNO=2
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CONFIG_NSH_READLINE=y
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CONFIG_PREALLOC_TIMERS=4
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CONFIG_PWM_MULTICHAN=y
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CONFIG_PWM_NCHANNELS=3
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CONFIG_RAM_SIZE=114688
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CONFIG_RAM_START=0x20000000
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CONFIG_RGBLED=y
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CONFIG_RGBLED_INVERT=y
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CONFIG_RGBLED_LIGHTNESS_CORRECTION=y
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CONFIG_RGBLED_PWM_FREQ=200
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CONFIG_RR_INTERVAL=200
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CONFIG_SCHED_WAITPID=y
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CONFIG_SENSORS=y
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@ -69,5 +82,7 @@ CONFIG_START_MONTH=12
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CONFIG_START_YEAR=2011
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CONFIG_SYSLOG_BUFFER=y
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CONFIG_SYSTEM_NSH=y
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CONFIG_TIMER=y
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CONFIG_TIMER_ARCH=y
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CONFIG_UART0_SERIAL_CONSOLE=y
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CONFIG_VIDEO_FB=y
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@ -48,6 +48,10 @@
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# include <nuttx/leds/userled.h>
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#endif
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#ifdef CONFIG_RGBLED
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# include "esp32_rgbled.h"
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#endif
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#ifdef CONFIG_TIMER
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#include <esp32_tim_lowerhalf.h>
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#endif
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@ -400,6 +404,16 @@ int esp32_bringup(void)
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}
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#endif
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#ifdef CONFIG_RGBLED
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/* Register RGB Driver */
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ret = esp32_rgbled_initialize("/dev/rgbled0");
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if (ret < 0)
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{
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syslog(LOG_ERR, "ERROR: esp32_rgbled_initialize() failed: %d\n", ret);
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}
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#endif
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/* If we got here then perhaps not all initialization was successful, but
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* at least enough succeeded to bring-up NSH with perhaps reduced
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* capabilities.
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