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commit a44878134857ff1edca0aaffa8044e4b12351351
Author: raiden00pl <[email protected]>
AuthorDate: Sat Apr 11 12:22:05 2026 +0200

    boards/nucleo-c0XX: add qencoder support
    
    add qencoder support for nucleo-c0 boards
    
    Signed-off-by: raiden00pl <[email protected]>
---
 .../include/board_qencoder.h}                      | 93 +++++-----------------
 boards/arm/stm32f0l0g0/common/src/CMakeLists.txt   |  4 +
 boards/arm/stm32f0l0g0/common/src/Make.defs        |  4 +
 .../src/board_qencoder.c}                          | 82 +++++--------------
 .../nucleo-c071rb/configs/jumbo/defconfig          |  6 ++
 .../arm/stm32f0l0g0/nucleo-c071rb/include/board.h  |  8 ++
 .../stm32f0l0g0/nucleo-c071rb/src/stm32_bringup.c  | 17 ++++
 .../nucleo-c092rc/configs/jumbo/defconfig          |  6 ++
 .../arm/stm32f0l0g0/nucleo-c092rc/include/board.h  |  8 ++
 .../stm32f0l0g0/nucleo-c092rc/src/stm32_bringup.c  | 17 ++++
 10 files changed, 109 insertions(+), 136 deletions(-)

diff --git a/boards/arm/stm32f0l0g0/nucleo-c071rb/src/stm32_bringup.c 
b/boards/arm/stm32f0l0g0/common/include/board_qencoder.h
similarity index 52%
copy from boards/arm/stm32f0l0g0/nucleo-c071rb/src/stm32_bringup.c
copy to boards/arm/stm32f0l0g0/common/include/board_qencoder.h
index 3f03c3f063e..b16fbb020d0 100644
--- a/boards/arm/stm32f0l0g0/nucleo-c071rb/src/stm32_bringup.c
+++ b/boards/arm/stm32f0l0g0/common/include/board_qencoder.h
@@ -1,5 +1,5 @@
 /****************************************************************************
- * boards/arm/stm32f0l0g0/nucleo-c071rb/src/stm32_bringup.c
+ * boards/arm/stm32f0l0g0/common/include/board_qencoder.h
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -20,95 +20,44 @@
  *
  ****************************************************************************/
 
+#ifndef __BOARDS_ARM_STM32F0L0G0_COMMON_INCLUDE_BOARD_QENCODER_H
+#define __BOARDS_ARM_STM32F0L0G0_COMMON_INCLUDE_BOARD_QENCODER_H
+
 /****************************************************************************
  * Included Files
  ****************************************************************************/
 
 #include <nuttx/config.h>
 
-#include <nuttx/debug.h>
-
-#include <sys/types.h>
-
-#ifdef CONFIG_INPUT_BUTTONS
-#  include <nuttx/input/buttons.h>
-#endif
-
-#ifdef CONFIG_USERLED
-#  include <nuttx/leds/userled.h>
-#endif
-
-#ifdef CONFIG_STM32F0L0G0_IWDG
-#  include <stm32_wdg.h>
-#endif
-
-#include <arch/board/board.h>
-
-#include "nucleo-c071rb.h"
-
 /****************************************************************************
- * Pre-processor Definitions
+ * Public Data
  ****************************************************************************/
 
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
 /****************************************************************************
- * Public Functions
+ * Public Function Prototypes
  ****************************************************************************/
 
 /****************************************************************************
- * Name: stm32_bringup
+ * Name: board_qencoder_initialize
  *
  * Description:
- *   Perform architecture-specific initialization
- *
- *   CONFIG_BOARD_LATE_INITIALIZE=y :
- *     Called from board_late_initialize().
- *
- *   CONFIG_BOARD_LATE_INITIALIZE=n && CONFIG_BOARDCTL=y :
- *     Called from the NSH library
+ *   Initialize the quadrature encoder driver for the given timer
  *
  ****************************************************************************/
 
-int stm32_bringup(void)
-{
-  int ret;
-
-#ifdef CONFIG_STM32F0L0G0_IWDG
-  /* Initialize the watchdog timer */
-
-  stm32_iwdginitialize("/dev/watchdog0", STM32_LSI_FREQUENCY);
-#endif
-
-#if !defined(CONFIG_ARCH_LEDS) && defined(CONFIG_USERLED_LOWER)
-  /* Register the LED driver */
-
-  ret = userled_lower_initialize(LED_DRIVER_PATH);
-  if (ret < 0)
-    {
-      syslog(LOG_ERR, "ERROR: userled_lower_initialize() failed: %d\n", ret);
-      return ret;
-    }
-#endif
-
-#ifdef CONFIG_INPUT_BUTTONS
-  /* Register the BUTTON driver */
-
-  ret = btn_lower_initialize("/dev/buttons");
-  if (ret < 0)
-    {
-      syslog(LOG_ERR, "ERROR: btn_lower_initialize() failed: %d\n", ret);
-    }
-#endif
+int board_qencoder_initialize(int devno, int timerno);
 
-#ifdef CONFIG_ADC
-  /* Initialize ADC and register the ADC driver. */
-
-  ret = stm32_adc_setup();
-  if (ret < 0)
-    {
-      syslog(LOG_ERR, "ERROR: stm32_adc_setup failed: %d\n", ret);
-    }
+#undef EXTERN
+#ifdef __cplusplus
+}
 #endif
 
-  UNUSED(ret);
-  return OK;
-}
+#endif /* __BOARDS_ARM_STM32F0L0G0_COMMON_INCLUDE_BOARD_QENCODER_H */
diff --git a/boards/arm/stm32f0l0g0/common/src/CMakeLists.txt 
b/boards/arm/stm32f0l0g0/common/src/CMakeLists.txt
index 20eea72417b..45d0130bc75 100644
--- a/boards/arm/stm32f0l0g0/common/src/CMakeLists.txt
+++ b/boards/arm/stm32f0l0g0/common/src/CMakeLists.txt
@@ -26,5 +26,9 @@ if(CONFIG_ARCH_BOARD_COMMON)
     list(APPEND SRCS stm32_ssd1306.c)
   endif()
 
+  if(CONFIG_SENSORS_QENCODER)
+    list(APPEND SRCS stm32_qencoder.c)
+  endif()
+
 endif()
 target_sources(board PRIVATE ${SRCS})
diff --git a/boards/arm/stm32f0l0g0/common/src/Make.defs 
b/boards/arm/stm32f0l0g0/common/src/Make.defs
index 815643b9c0b..b3c6f854286 100644
--- a/boards/arm/stm32f0l0g0/common/src/Make.defs
+++ b/boards/arm/stm32f0l0g0/common/src/Make.defs
@@ -26,6 +26,10 @@ ifeq ($(CONFIG_LCD_SSD1306),y)
   CSRCS += stm32_ssd1306.c
 endif
 
+ifeq ($(CONFIG_SENSORS_QENCODER),y)
+  CSRCS += board_qencoder.c
+endif
+
 DEPPATH += --dep-path src
 VPATH += :src
 CFLAGS += 
${INCDIR_PREFIX}$(TOPDIR)$(DELIM)arch$(DELIM)$(CONFIG_ARCH)$(DELIM)src$(DELIM)board$(DELIM)src
diff --git a/boards/arm/stm32f0l0g0/nucleo-c071rb/src/stm32_bringup.c 
b/boards/arm/stm32f0l0g0/common/src/board_qencoder.c
similarity index 50%
copy from boards/arm/stm32f0l0g0/nucleo-c071rb/src/stm32_bringup.c
copy to boards/arm/stm32f0l0g0/common/src/board_qencoder.c
index 3f03c3f063e..6f7e6260977 100644
--- a/boards/arm/stm32f0l0g0/nucleo-c071rb/src/stm32_bringup.c
+++ b/boards/arm/stm32f0l0g0/common/src/board_qencoder.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * boards/arm/stm32f0l0g0/nucleo-c071rb/src/stm32_bringup.c
+ * boards/arm/stm32f0l0g0/common/src/board_qencoder.c
  *
  * SPDX-License-Identifier: Apache-2.0
  *
@@ -26,89 +26,43 @@
 
 #include <nuttx/config.h>
 
-#include <nuttx/debug.h>
-
-#include <sys/types.h>
-
-#ifdef CONFIG_INPUT_BUTTONS
-#  include <nuttx/input/buttons.h>
-#endif
-
-#ifdef CONFIG_USERLED
-#  include <nuttx/leds/userled.h>
-#endif
-
-#ifdef CONFIG_STM32F0L0G0_IWDG
-#  include <stm32_wdg.h>
-#endif
+#include <errno.h>
+#include <debug.h>
+#include <stdio.h>
 
+#include <nuttx/sensors/qencoder.h>
 #include <arch/board/board.h>
 
-#include "nucleo-c071rb.h"
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
+#include "chip.h"
+#include "arm_internal.h"
+#include "stm32_qencoder.h"
 
 /****************************************************************************
  * Public Functions
  ****************************************************************************/
 
 /****************************************************************************
- * Name: stm32_bringup
+ * Name: board_qencoder_initialize
  *
  * Description:
- *   Perform architecture-specific initialization
- *
- *   CONFIG_BOARD_LATE_INITIALIZE=y :
- *     Called from board_late_initialize().
- *
- *   CONFIG_BOARD_LATE_INITIALIZE=n && CONFIG_BOARDCTL=y :
- *     Called from the NSH library
+ *   Initialize the quadrature encoder driver for the given timer
  *
  ****************************************************************************/
 
-int stm32_bringup(void)
+int board_qencoder_initialize(int devno, int timerno)
 {
   int ret;
+  char devpath[12];
 
-#ifdef CONFIG_STM32F0L0G0_IWDG
-  /* Initialize the watchdog timer */
-
-  stm32_iwdginitialize("/dev/watchdog0", STM32_LSI_FREQUENCY);
-#endif
-
-#if !defined(CONFIG_ARCH_LEDS) && defined(CONFIG_USERLED_LOWER)
-  /* Register the LED driver */
-
-  ret = userled_lower_initialize(LED_DRIVER_PATH);
-  if (ret < 0)
-    {
-      syslog(LOG_ERR, "ERROR: userled_lower_initialize() failed: %d\n", ret);
-      return ret;
-    }
-#endif
-
-#ifdef CONFIG_INPUT_BUTTONS
-  /* Register the BUTTON driver */
-
-  ret = btn_lower_initialize("/dev/buttons");
-  if (ret < 0)
-    {
-      syslog(LOG_ERR, "ERROR: btn_lower_initialize() failed: %d\n", ret);
-    }
-#endif
-
-#ifdef CONFIG_ADC
-  /* Initialize ADC and register the ADC driver. */
+  /* Initialize a quadrature encoder interface. */
 
-  ret = stm32_adc_setup();
+  sninfo("Initializing the quadrature encoder using TIM%d\n", timerno);
+  snprintf(devpath, sizeof(devpath), "/dev/qe%d", devno);
+  ret = stm32_qeinitialize(devpath, timerno);
   if (ret < 0)
     {
-      syslog(LOG_ERR, "ERROR: stm32_adc_setup failed: %d\n", ret);
+      snerr("ERROR: stm32_qeinitialize failed: %d\n", ret);
     }
-#endif
 
-  UNUSED(ret);
-  return OK;
+  return ret;
 }
diff --git a/boards/arm/stm32f0l0g0/nucleo-c071rb/configs/jumbo/defconfig 
b/boards/arm/stm32f0l0g0/nucleo-c071rb/configs/jumbo/defconfig
index 037d009ebdd..e30d953d4a8 100644
--- a/boards/arm/stm32f0l0g0/nucleo-c071rb/configs/jumbo/defconfig
+++ b/boards/arm/stm32f0l0g0/nucleo-c071rb/configs/jumbo/defconfig
@@ -12,6 +12,7 @@ CONFIG_ADC=y
 CONFIG_ANALOG=y
 CONFIG_ARCH="arm"
 CONFIG_ARCH_BOARD="nucleo-c071rb"
+CONFIG_ARCH_BOARD_COMMON=y
 CONFIG_ARCH_BOARD_NUCLEO_C071RB=y
 CONFIG_ARCH_BUTTONS=y
 CONFIG_ARCH_CHIP="stm32f0l0g0"
@@ -38,6 +39,7 @@ CONFIG_EXAMPLES_ADC_GROUPSIZE=2
 CONFIG_EXAMPLES_ADC_SWTRIG=y
 CONFIG_EXAMPLES_BUTTONS=y
 CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_QENCODER=y
 CONFIG_EXAMPLES_WATCHDOG=y
 CONFIG_INIT_ENTRYPOINT="nsh_main"
 CONFIG_INIT_STACKSIZE=1536
@@ -60,6 +62,8 @@ CONFIG_RAM_START=0x20000000
 CONFIG_RAW_BINARY=y
 CONFIG_RR_INTERVAL=200
 CONFIG_SCHED_WAITPID=y
+CONFIG_SENSORS=y
+CONFIG_SENSORS_QENCODER=y
 CONFIG_START_DAY=19
 CONFIG_START_MONTH=5
 CONFIG_START_YEAR=2013
@@ -68,6 +72,8 @@ CONFIG_STM32F0L0G0_ADC1=y
 CONFIG_STM32F0L0G0_ADC_MAX_SAMPLES=6
 CONFIG_STM32F0L0G0_DMA1=y
 CONFIG_STM32F0L0G0_IWDG=y
+CONFIG_STM32F0L0G0_TIM3=y
+CONFIG_STM32F0L0G0_TIM3_QE=y
 CONFIG_STM32F0L0G0_USART2=y
 CONFIG_STM32F0L0G0_WWDG=y
 CONFIG_SYSTEM_NSH=y
diff --git a/boards/arm/stm32f0l0g0/nucleo-c071rb/include/board.h 
b/boards/arm/stm32f0l0g0/nucleo-c071rb/include/board.h
index e48c7aaefe0..154ae1e8941 100644
--- a/boards/arm/stm32f0l0g0/nucleo-c071rb/include/board.h
+++ b/boards/arm/stm32f0l0g0/nucleo-c071rb/include/board.h
@@ -162,6 +162,14 @@
 #define GPIO_USART2_RX      (GPIO_USART2_RX_1|GPIO_SPEED_HIGH)    /* PA3 */
 #define GPIO_USART2_TX      (GPIO_USART2_TX_1|GPIO_SPEED_HIGH)    /* PA2 */
 
+/* Qencoder on TIM3:
+ *   TIM3_CH1IN - PB4 (D5)
+ *   TIM3_CH2IN - PC7 (D3)
+ */
+
+#define GPIO_TIM3_CH1IN     (GPIO_TIM3_CH1IN_2|GPIO_SPEED_HIGH)
+#define GPIO_TIM3_CH2IN     (GPIO_TIM3_CH2IN_6|GPIO_SPEED_HIGH)
+
 /* DMA channels *************************************************************/
 
 /* ADC */
diff --git a/boards/arm/stm32f0l0g0/nucleo-c071rb/src/stm32_bringup.c 
b/boards/arm/stm32f0l0g0/nucleo-c071rb/src/stm32_bringup.c
index 3f03c3f063e..2ca3cf0ec3e 100644
--- a/boards/arm/stm32f0l0g0/nucleo-c071rb/src/stm32_bringup.c
+++ b/boards/arm/stm32f0l0g0/nucleo-c071rb/src/stm32_bringup.c
@@ -42,6 +42,10 @@
 #  include <stm32_wdg.h>
 #endif
 
+#ifdef CONFIG_SENSORS_QENCODER
+#  include "board_qencoder.h"
+#endif
+
 #include <arch/board/board.h>
 
 #include "nucleo-c071rb.h"
@@ -109,6 +113,19 @@ int stm32_bringup(void)
     }
 #endif
 
+#ifdef CONFIG_SENSORS_QENCODER
+  /* Initialize and register the qencoder driver - TIM3 */
+
+  ret = board_qencoder_initialize(0, 3);
+  if (ret != OK)
+    {
+      syslog(LOG_ERR,
+             "ERROR: Failed to register the qencoder: %d\n",
+             ret);
+      return ret;
+    }
+#endif
+
   UNUSED(ret);
   return OK;
 }
diff --git a/boards/arm/stm32f0l0g0/nucleo-c092rc/configs/jumbo/defconfig 
b/boards/arm/stm32f0l0g0/nucleo-c092rc/configs/jumbo/defconfig
index 08a40532ee7..06d19717044 100644
--- a/boards/arm/stm32f0l0g0/nucleo-c092rc/configs/jumbo/defconfig
+++ b/boards/arm/stm32f0l0g0/nucleo-c092rc/configs/jumbo/defconfig
@@ -12,6 +12,7 @@ CONFIG_ADC=y
 CONFIG_ANALOG=y
 CONFIG_ARCH="arm"
 CONFIG_ARCH_BOARD="nucleo-c092rc"
+CONFIG_ARCH_BOARD_COMMON=y
 CONFIG_ARCH_BOARD_NUCLEO_C092RC=y
 CONFIG_ARCH_BUTTONS=y
 CONFIG_ARCH_CHIP="stm32f0l0g0"
@@ -38,6 +39,7 @@ CONFIG_EXAMPLES_ADC_GROUPSIZE=2
 CONFIG_EXAMPLES_ADC_SWTRIG=y
 CONFIG_EXAMPLES_BUTTONS=y
 CONFIG_EXAMPLES_HELLO=y
+CONFIG_EXAMPLES_QENCODER=y
 CONFIG_EXAMPLES_WATCHDOG=y
 CONFIG_INIT_ENTRYPOINT="nsh_main"
 CONFIG_INIT_STACKSIZE=1536
@@ -60,6 +62,8 @@ CONFIG_RAM_START=0x20000000
 CONFIG_RAW_BINARY=y
 CONFIG_RR_INTERVAL=200
 CONFIG_SCHED_WAITPID=y
+CONFIG_SENSORS=y
+CONFIG_SENSORS_QENCODER=y
 CONFIG_START_DAY=19
 CONFIG_START_MONTH=5
 CONFIG_START_YEAR=2013
@@ -68,6 +72,8 @@ CONFIG_STM32F0L0G0_ADC1=y
 CONFIG_STM32F0L0G0_ADC_MAX_SAMPLES=2
 CONFIG_STM32F0L0G0_DMA1=y
 CONFIG_STM32F0L0G0_IWDG=y
+CONFIG_STM32F0L0G0_TIM3=y
+CONFIG_STM32F0L0G0_TIM3_QE=y
 CONFIG_STM32F0L0G0_USART2=y
 CONFIG_STM32F0L0G0_WWDG=y
 CONFIG_SYSTEM_NSH=y
diff --git a/boards/arm/stm32f0l0g0/nucleo-c092rc/include/board.h 
b/boards/arm/stm32f0l0g0/nucleo-c092rc/include/board.h
index 9b4b5d793f9..fe9f5cf786a 100644
--- a/boards/arm/stm32f0l0g0/nucleo-c092rc/include/board.h
+++ b/boards/arm/stm32f0l0g0/nucleo-c092rc/include/board.h
@@ -172,6 +172,14 @@
 #define GPIO_FDCAN1_RX      (GPIO_FDCAN1_RX_8|GPIO_SPEED_HIGH)    /* PD0 */
 #define GPIO_FDCAN1_TX      (GPIO_FDCAN1_TX_9|GPIO_SPEED_HIGH)    /* PD1 */
 
+/* Qencoder on TIM3:
+ *   TIM3_CH1IN - PB4 (D5)
+ *   TIM3_CH2IN - PC7 (D3)
+ */
+
+#define GPIO_TIM3_CH1IN     (GPIO_TIM3_CH1IN_2|GPIO_SPEED_HIGH)
+#define GPIO_TIM3_CH2IN     (GPIO_TIM3_CH2IN_6|GPIO_SPEED_HIGH)
+
 /* DMA channels *************************************************************/
 
 /* ADC */
diff --git a/boards/arm/stm32f0l0g0/nucleo-c092rc/src/stm32_bringup.c 
b/boards/arm/stm32f0l0g0/nucleo-c092rc/src/stm32_bringup.c
index 8cd1d4d7209..b51e3c42f45 100644
--- a/boards/arm/stm32f0l0g0/nucleo-c092rc/src/stm32_bringup.c
+++ b/boards/arm/stm32f0l0g0/nucleo-c092rc/src/stm32_bringup.c
@@ -42,6 +42,10 @@
 #  include <stm32_wdg.h>
 #endif
 
+#ifdef CONFIG_SENSORS_QENCODER
+#  include "board_qencoder.h"
+#endif
+
 #include <arch/board/board.h>
 
 #include "nucleo-c092rc.h"
@@ -129,6 +133,19 @@ int stm32_bringup(void)
     }
 #endif
 
+#ifdef CONFIG_SENSORS_QENCODER
+  /* Initialize and register the qencoder driver - TIM3 */
+
+  ret = board_qencoder_initialize(0, 3);
+  if (ret != OK)
+    {
+      syslog(LOG_ERR,
+             "ERROR: Failed to register the qencoder: %d\n",
+             ret);
+      return ret;
+    }
+#endif
+
   UNUSED(ret);
   return OK;
 }

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