--- /dev/null
+/****************************************************************************
+ *
+ * Copyright 2017 Samsung Electronics All Rights Reserved.
+ *
+ * Licensed 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.
+ *
+ ****************************************************************************/
+/****************************************************************************
+ * arch/arm/src/sidk_s5jt200/src/s5jt200_led.c
+ *
+ * Copyright (C) 2009, 2011, 2013, 2015 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 <tinyara/config.h>
+
+#include <debug.h>
+#include <assert.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <tinyara/pwm.h>
+
+#include <tinyara/board.h>
+#include <arch/board/board.h>
+
+pid_t g_rgbled_tid;
+FAR struct pwm_lowerhalf_s *ledr;
+FAR struct pwm_lowerhalf_s *ledg;
+FAR struct pwm_lowerhalf_s *ledb;
+
+int s5jt200_rgbled_state_task(void)
+{
+ char freq;
+ struct pwm_info_s info;
+
+ info.duty = 30;
+
+ while(1) {
+ /* pwm pulse frequency will be set from 0KHz to 50Khz */
+ for (freq = 0; freq < 50; freq++) {
+ info.frequency = freq * 1000;
+
+ switch(freq % 3) {
+ case 0:
+ ledb->ops->start(ledr, &info);
+ break;
+ case 1:
+ ledg->ops->start(ledg, &info);
+ break;
+ case 2:
+ ledr->ops->start(ledb, &info);
+ break;
+ default:
+ break;
+ }
+
+ sleep(1);
+ }
+ }
+
+ return OK;
+}
+
+/*
+ * PWM1 to B1 Out
+ * PWM2 to G1 Out
+ * PWM3 to R1 Out
+ */
+int s5jt200_rgbled_setup(void)
+{
+ static bool initialized = false;
+ struct pwm_info_s info;
+
+ /* Have we already initialized? */
+ if (!initialized) {
+ lldbg("RGB on!!\n");
+
+ /* Initialize LED B */
+ /* Call s5j_pwminitialize() to get an instance of the PWM interface */
+ ledb = (struct pwm_lowerhalf_s*)s5j_pwminitialize(1);
+ if (!ledb) {
+ lldbg("ERROR: Failed to get the STM32 PWM lower half to LEDR\n");
+ return -ENODEV;
+ }
+
+ /* Define frequency and duty cycle */
+ info.frequency = 5000;
+ info.duty = 20;
+
+ ledb->ops->setup(ledb);
+ ledb->ops->start(ledb, &info);
+
+ /* Initialize LED G */
+ /* Call s5j_pwminitialize() to get an instance of the PWM interface */
+ ledg = (struct pwm_lowerhalf_s*)s5j_pwminitialize(2);
+ if (!ledg) {
+ lldbg("ERROR: Failed to get the STM32 PWM lower half to LEDG\n");
+ return -ENODEV;
+ }
+
+ ledg->ops->setup(ledg);
+ ledg->ops->start(ledg, &info);
+
+ /* Initialize LED R */
+ /* Call s5j_pwminitialize() to get an instance of the PWM interface */
+ ledr = (struct pwm_lowerhalf_s*)s5j_pwminitialize(3);
+ if (!ledr) {
+ lldbg("ERROR: Failed to get the STM32 PWM lower half to LEDB\n");
+ return -ENODEV;
+ }
+
+ ledr->ops->setup(ledr);
+ ledr->ops->start(ledr, &info);
+
+#ifdef CONFIG_RGBLED
+ /* Register the RGB LED diver at "/dev/rgbled0" */
+ ret = rgbled_register("/dev/rgbled0", ledr, ledg, ledb);
+ if (ret < 0) {
+ lldbg("ERROR: rgbled_register failed: %d\n", ret);
+ return ret;
+ }
+#endif
+
+ /* Now we are initialized */
+ initialized = true;
+ }
+
+ return OK;
+}
+
+int s5j_ledinitialize(void)
+{
+ /* RGB LED controlled by S8300 LED DRIVER ID with PWM */
+ s5jt200_rgbled_setup();
+
+ g_rgbled_tid = task_create("s5jt200 rgbstate", 100, 1024,
+ s5jt200_rgbled_state_task, NULL);
+ lldbg("Create rgbled task..\n");
+
+ if (!g_rgbled_tid) {
+ lldbg("Failed to run rgbled task..\n");
+ return -ESRCH;
+ }
+
+ return OK;
+}
projects / rtos / tinyara.git / commitdiff