xtensa/esp32: Added Userled support

boards/Kconfig

@@ -191,6 +191,7 @@ config ARCH_BOARD_QUICKFEATHER
 config ARCH_BOARD_ESP32CORE
 	bool "Espressif ESP32 Core board V2"
 	depends on ARCH_CHIP_ESP32
+	select ARCH_HAVE_LEDS
 	---help---
 		The ESP32 is a dual-core system from Espressif with two Harvard
 		architecture Xtensa LX6 CPUs. All embedded memory, external memory

boards/xtensa/esp32/esp32-core/configs/leds/defconfig

@@ -0,0 +1,52 @@
+#
+# 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-core"
+CONFIG_ARCH_BOARD_ESP32CORE=y
+CONFIG_ARCH_CHIP="esp32"
+CONFIG_ARCH_CHIP_ESP32=y
+CONFIG_ARCH_STACKDUMP=y
+CONFIG_ARCH_XTENSA=y
+CONFIG_BOARD_LOOPSPERMSEC=16717
+CONFIG_BUILTIN=y
+CONFIG_ESP32_UART0=y
+CONFIG_EXAMPLES_LEDS=y
+CONFIG_EXPERIMENTAL=y
+CONFIG_FS_PROCFS=y
+CONFIG_HAVE_CXX=y
+CONFIG_HAVE_CXXINITIALIZE=y
+CONFIG_IDLETHREAD_STACKSIZE=3072
+CONFIG_INTELHEX_BINARY=y
+CONFIG_MAX_TASKS=16
+CONFIG_MM_REGIONS=2
+CONFIG_NFILE_DESCRIPTORS=8
+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_SPI=y
+CONFIG_START_DAY=6
+CONFIG_START_MONTH=12
+CONFIG_START_YEAR=2011
+CONFIG_SYSTEM_NSH=y
+CONFIG_UART0_SERIAL_CONSOLE=y
+CONFIG_USERLED=y
+CONFIG_USERLED_LOWER=y
+CONFIG_USER_ENTRYPOINT="nsh_main"

boards/xtensa/esp32/esp32-core/configs/mmcsdspi/defconfig

@@ -5,6 +5,7 @@
 # You can then do "make savedefconfig" to generate a new defconfig file that includes your
 # modifications.
 #
+# CONFIG_ARCH_LEDS is not set
 # CONFIG_ESP32_SPI2_DMA is not set
 # CONFIG_MMCSD_HAVE_CARDDETECT is not set
 # CONFIG_MMCSD_HAVE_WRITEPROTECT is not set

boards/xtensa/esp32/esp32-core/configs/netnsh/defconfig

@@ -5,6 +5,7 @@
 # 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

boards/xtensa/esp32/esp32-core/configs/nsh/defconfig

@@ -5,6 +5,7 @@
 # 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

boards/xtensa/esp32/esp32-core/configs/ostest/defconfig

@@ -5,6 +5,7 @@
 # You can then do "make savedefconfig" to generate a new defconfig file that includes your
 # modifications.
 #
+# CONFIG_ARCH_LEDS is not set
 CONFIG_ARCH="xtensa"
 CONFIG_ARCH_BOARD="esp32-core"
 CONFIG_ARCH_BOARD_ESP32CORE=y

boards/xtensa/esp32/esp32-core/configs/pm/defconfig

@@ -5,6 +5,7 @@
 # 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

boards/xtensa/esp32/esp32-core/configs/psram/defconfig

@@ -5,6 +5,7 @@
 # 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

boards/xtensa/esp32/esp32-core/configs/random/defconfig

@@ -5,6 +5,7 @@
 # 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

boards/xtensa/esp32/esp32-core/configs/smp/defconfig

@@ -5,6 +5,7 @@
 # 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

boards/xtensa/esp32/esp32-core/configs/spiflash/defconfig

@@ -5,6 +5,7 @@
 # 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

boards/xtensa/esp32/esp32-core/configs/timer/defconfig

@@ -5,6 +5,7 @@
 # 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

boards/xtensa/esp32/esp32-core/configs/wapi/defconfig

@@ -5,6 +5,7 @@
 # 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

boards/xtensa/esp32/esp32-core/include/board.h

@@ -85,4 +85,11 @@
 #endif
 #endif
 
+/* LED definitions **********************************************************/
+
+/* Define how many LEDs this board has (needed by userleds) */
+
+#define BOARD_NLEDS       1
+#define GPIO_LED1         2  
+
 #endif /* __BOARDS_XTENSA_ESP32_ESP32_CORE_INCLUDE_BOARD_H */

boards/xtensa/esp32/esp32-core/src/Makefile

@@ -66,6 +66,10 @@ CSRCS += esp32_timer.c
 endif
 endif
 
+ifeq ($(CONFIG_USERLED),y)
+  CSRCS += esp32_userleds.c
+endif
+
 SCRIPTIN = $(SCRIPTDIR)$(DELIM)esp32.template.ld
 SCRIPTOUT = $(SCRIPTDIR)$(DELIM)esp32_out.ld
 

boards/xtensa/esp32/esp32-core/src/esp32_bringup.c

@@ -53,6 +53,11 @@
 #ifdef CONFIG_TIMER
 #  include <nuttx/timers/timer.h>
 #endif
+
+#ifdef CONFIG_USERLED
+#  include <nuttx/leds/userled.h>
+#endif
+
 #include <syslog.h>
 #include <sys/errno.h>
 
@@ -244,6 +249,16 @@ int esp32_bringup(void)
 #endif
 #endif
 
+#ifdef CONFIG_USERLED
+  /* Register the LED driver */
+
+  ret = userled_lower_initialize("/dev/userleds");
+  if (ret < 0)
+    {
+      syslog(LOG_ERR, "ERROR: userled_lower_initialize() failed: %d\n", ret);
+    }
+#endif
+
   /* If we got here then perhaps not all initialization was successful, but
    * at least enough succeeded to bring-up NSH with perhaps reduced
    * capabilities.

boards/xtensa/esp32/esp32-core/src/esp32_userleds.c

@@ -0,0 +1,91 @@
+/****************************************************************************
+ * boards/xtensa/esp32/esp32-core/src/esp32_userleds.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 <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+#include <arch/board/board.h>
+#include "esp32_gpio.h"
+#include "esp32-core.h"
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/* This array maps an LED number to GPIO pin configuration */
+
+static const uint32_t g_ledcfg[BOARD_NLEDS] =
+{
+  GPIO_LED1,
+};
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_userled_initialize
+ ****************************************************************************/
+
+uint32_t board_userled_initialize(void)
+{
+  uint8_t i;
+
+  for (i = 0; i < BOARD_NLEDS; i++)
+    {
+      esp32_configgpio(g_ledcfg[i], OUTPUT);
+    }
+
+  return BOARD_NLEDS;
+}
+
+/****************************************************************************
+ * Name: board_userled
+ ****************************************************************************/
+
+void board_userled(int led, bool ledon)
+{
+  if ((unsigned)led < BOARD_NLEDS)
+    {
+      esp32_gpiowrite(g_ledcfg[led], ledon);
+    }
+}
+
+/****************************************************************************
+ * Name: board_userled_all
+ ****************************************************************************/
+
+void board_userled_all(uint32_t ledset)
+{
+  uint8_t i;
+
+  /* Configure LED1-8 GPIOs for output */
+
+  for (i = 0; i < BOARD_NLEDS; i++)
+    {
+      esp32_gpiowrite(g_ledcfg[i], (ledset & (1 << i)) != 0);
+    }
+}
+