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Posted to commits@nuttx.apache.org by ag...@apache.org on 2020/12/09 21:55:39 UTC
[incubator-nuttx] branch master updated: boards/arm/stm32: add
common and stm32f103-minimum support for WS2812 LEDs.
This is an automated email from the ASF dual-hosted git repository.
aguettouche pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/incubator-nuttx.git
The following commit(s) were added to refs/heads/master by this push:
new 375211f boards/arm/stm32: add common and stm32f103-minimum support for WS2812 LEDs.
375211f is described below
commit 375211f5a176ce5a3cdaa36ed8a5cbddddf1fedf
Author: Diego Herranz <di...@diegoherranz.com>
AuthorDate: Sun Dec 6 12:25:50 2020 +0000
boards/arm/stm32: add common and stm32f103-minimum support for WS2812 LEDs.
---
boards/arm/stm32/common/include/stm32_ws2812.h | 85 ++++++++++++++++
boards/arm/stm32/common/src/Make.defs | 4 +
boards/arm/stm32/common/src/stm32_ws2812.c | 109 +++++++++++++++++++++
.../stm32/stm32f103-minimum/src/stm32_bringup.c | 14 +++
.../stm32f103-minimum/src/stm32f103_minimum.h | 5 +
5 files changed, 217 insertions(+)
diff --git a/boards/arm/stm32/common/include/stm32_ws2812.h b/boards/arm/stm32/common/include/stm32_ws2812.h
new file mode 100644
index 0000000..4a002db
--- /dev/null
+++ b/boards/arm/stm32/common/include/stm32_ws2812.h
@@ -0,0 +1,85 @@
+/****************************************************************************
+ * boards/arm/stm32/common/include/stm32_ws2812.h
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+#ifndef __STM32_WS2812_H
+#define __STM32_WS2812_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Type Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+#ifdef __cplusplus
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Inline Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_ws2812_initialize
+ *
+ * Description:
+ * Initialize and register the WS2812 LED driver.
+ *
+ * Input Parameters:
+ * devno - The device number, used to build the device path as /dev/leddrvN
+ * spino - SPI port number
+ * nleds - number of LEDs
+ *
+ * Returned Value:
+ * Zero (OK) on success; a negated errno value on failure.
+ *
+ ****************************************************************************/
+
+int board_ws2812_initialize(int devno, int spino, uint16_t nleds);
+
+#undef EXTERN
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __STM32_WS2812_H
diff --git a/boards/arm/stm32/common/src/Make.defs b/boards/arm/stm32/common/src/Make.defs
index 4ff9bb9..531757f 100644
--- a/boards/arm/stm32/common/src/Make.defs
+++ b/boards/arm/stm32/common/src/Make.defs
@@ -26,6 +26,10 @@ ifeq ($(CONFIG_LEDS_APA102),y)
CSRCS += stm32_apa102.c
endif
+ifeq ($(CONFIG_WS2812),y)
+ CSRCS += stm32_ws2812.c
+endif
+
ifeq ($(CONFIG_SENSORS_MAX6675),y)
CSRCS += stm32_max6675.c
endif
diff --git a/boards/arm/stm32/common/src/stm32_ws2812.c b/boards/arm/stm32/common/src/stm32_ws2812.c
new file mode 100644
index 0000000..fcd3414
--- /dev/null
+++ b/boards/arm/stm32/common/src/stm32_ws2812.c
@@ -0,0 +1,109 @@
+/****************************************************************************
+ * boards/arm/stm32/common/src/stm32_ws2812.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 <errno.h>
+#include <debug.h>
+#include <stdio.h>
+
+#include <nuttx/spi/spi.h>
+#include <nuttx/leds/ws2812.h>
+
+#include "stm32.h"
+#include "stm32_spi.h"
+
+#ifdef CONFIG_WS2812
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Function Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_ws2812_initialize
+ *
+ * Description:
+ * Initialize and register the WS2812 LED driver.
+ *
+ * Input Parameters:
+ * devno - The device number, used to build the device path as /dev/leddrvN
+ * spino - SPI port number
+ * nleds - number of LEDs
+ *
+ * Returned Value:
+ * Zero (OK) on success; a negated errno value on failure.
+ *
+ ****************************************************************************/
+
+int board_ws2812_initialize(int devno, int spino, uint16_t nleds)
+{
+ FAR struct spi_dev_s *spi;
+ char devpath[13];
+ int ret;
+
+ spi = stm32_spibus_initialize(spino);
+ if (spi == NULL)
+ {
+ return -ENODEV;
+ }
+
+ /* Register the WS2812 driver at the specified location. */
+
+ snprintf(devpath, 13, "/dev/leddrv%d", devno);
+ ret = ws2812_leds_register(devpath, spi, nleds);
+ if (ret < 0)
+ {
+ lederr("ERROR: ws2812_leds_register(%s) failed: %d\n",
+ devpath, ret);
+ return ret;
+ }
+
+ return OK;
+}
+
+#endif
diff --git a/boards/arm/stm32/stm32f103-minimum/src/stm32_bringup.c b/boards/arm/stm32/stm32f103-minimum/src/stm32_bringup.c
index 21f8a05..c0b39b3 100644
--- a/boards/arm/stm32/stm32f103-minimum/src/stm32_bringup.c
+++ b/boards/arm/stm32/stm32f103-minimum/src/stm32_bringup.c
@@ -93,6 +93,10 @@
#include "stm32_apa102.h"
#endif
+#ifdef CONFIG_WS2812
+#include "stm32_ws2812.h"
+#endif
+
#ifdef CONFIG_SENSORS_MAX6675
#include "stm32_max6675.h"
#endif
@@ -323,6 +327,16 @@ int stm32_bringup(void)
}
#endif
+#ifdef CONFIG_WS2812
+ /* Configure and initialize the WS2812 LEDs. */
+
+ ret = board_ws2812_initialize(0, WS2812_SPI, WS2812_NLEDS);
+ if (ret < 0)
+ {
+ syslog(LOG_ERR, "ERROR: board_ws2812_initialize() failed: %d\n", ret);
+ }
+#endif
+
#ifdef CONFIG_LM75_I2C
/* Configure and initialize the LM75 sensor */
diff --git a/boards/arm/stm32/stm32f103-minimum/src/stm32f103_minimum.h b/boards/arm/stm32/stm32f103-minimum/src/stm32f103_minimum.h
index 171a2e0..9e352cf 100644
--- a/boards/arm/stm32/stm32f103-minimum/src/stm32f103_minimum.h
+++ b/boards/arm/stm32/stm32f103-minimum/src/stm32f103_minimum.h
@@ -197,6 +197,11 @@
#define GPIO_INT1 (GPIO_INPUT|GPIO_CNF_INFLOAT|GPIO_PORTA|GPIO_PIN2)
+/* WS2812 LEDs */
+
+#define WS2812_NLEDS 2
+#define WS2812_SPI 1
+
/****************************************************************************
* Public Function Prototypes
****************************************************************************/