Freedom K64F: Add user LED support.

configs/freedom-k64f/include/board.h

@@ -132,7 +132,24 @@
  *   BLUE   PTB21/SPI2_SCK/FB_AD30/CMP1_OUT
  *   GREEN  PTE26/ENET_1588_CLKIN/UART4_CTS_b/RTC_CLKOUT/USB0_CLKIN
  *
- * If CONFIG_ARCH_LEDs is defined, then NuttX will control the LED on board
+ * If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in any
+ * way.  The following definitions are used to access individual LEDs.
+ */
+
+/* LED index values for use with board_userled() */
+
+#define BOARD_LED_R       0
+#define BOARD_LED_G       1
+#define BOARD_LED_B       2
+#define BOARD_NLEDS       3
+
+/* LED bits for use with board_userled_all() */
+
+#define BOARD_LED_R_BIT   (1 << BOARD_LED_R)
+#define BOARD_LED_G_BIT   (1 << BOARD_LED_G)
+#define BOARD_LED_B_BIT   (1 << BOARD_LED_B)
+
+/* If CONFIG_ARCH_LEDs is defined, then NuttX will control the LED on board
  * the Freedom K64F.  The following definitions describe how NuttX controls
  * the LEDs:
  *

configs/freedom-k64f/src/Makefile

@@ -40,6 +40,8 @@ CSRCS = k64_boot.c k64_spi.c
 
 ifeq ($(CONFIG_ARCH_LEDS),y)
 CSRCS += k64_autoleds.c
+else
+CSRCS += k64_userleds.c
 endif
 
 ifeq ($(CONFIG_ARCH_BUTTONS),y)

configs/freedom-k64f/src/k64_userleds.c

@@ -0,0 +1,109 @@
+/****************************************************************************
+ * configs/freedom-k64f/src/k64_userleds.c
+ *
+ *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <stdint.h>
+#include <stdbool.h>
+#include <debug.h>
+
+#include <nuttx/board.h>
+#include <arch/board/board.h>
+
+#include "chip.h"
+#include "kinetis.h"
+#include "freedom-k64f.h"
+
+#ifndef CONFIG_ARCH_LEDS
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: board_userled_initialize
+ ****************************************************************************/
+
+void board_userled_initialize(void)
+{
+  kinetis_pinconfig(GPIO_LED_R);
+  kinetis_pinconfig(GPIO_LED_G);
+  kinetis_pinconfig(GPIO_LED_B);
+}
+
+/****************************************************************************
+ * Name: board_userled
+ ****************************************************************************/
+
+void board_userled(int led, bool ledon)
+{
+  uint32_t ledcfg;
+
+  if (led == BOARD_LED_R)
+    {
+      ledcfg = GPIO_LED_R;
+    }
+  else if (led == BOARD_LED_G)
+    {
+      ledcfg = GPIO_LED_G;
+    }
+  else if (led == BOARD_LED_B)
+    {
+      ledcfg = GPIO_LED_B;
+    }
+  else
+    {
+      return;
+    }
+
+  kinetis_gpiowrite(ledcfg, !ledon); /* Low illuminates */
+}
+
+/****************************************************************************
+ * Name: board_userled_all
+ ****************************************************************************/
+
+void board_userled_all(uint8_t ledset)
+{
+  /* Low illuminates */
+
+  kinetis_gpiowrite(GPIO_LED_R, (ledset & BOARD_LED_R_BIT) == 0);
+  kinetis_gpiowrite(GPIO_LED_G, (ledset & BOARD_LED_G_BIT) == 0);
+  kinetis_gpiowrite(GPIO_LED_B, (ledset & BOARD_LED_B_BIT) == 0);
+}