--- /dev/null
+/****************************************************************************
+ *
+ * Copyright 2016 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_tlc59116.c
+ *
+ * Copyright (C) 2009, 2011, 2013, 2015 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <gnutt@nuttx.org>
+ * Laurent Latil <laurent@latil.nom.fr>
+ *
+ * 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 <sys/types.h>
+
+#include <tinyara/board.h>
+#include <arch/board/board.h>
+#include <tinyara/i2c.h>
+#include <iotbus/iotbus_i2c.h>
+#include <sidk_s5jt200.h>
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+static struct i2c_dev_s *i2c_dev;
+static struct i2c_config_s configs;
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+static uint16_t tlc59xxx_write(uint8_t addr, uint8_t data)
+{
+ int32_t ret;
+ uint8_t reg[2];
+
+ reg[0] = addr;
+ reg[1] = data;
+
+ ret = i2c_write(i2c_dev, &configs, reg, 2);
+
+ return ret;
+}
+
+static uint32_t tlc59xxx_read(uint8_t addr, uint8_t *data, uint8_t bytecnt)
+{
+ int32_t ret;
+ uint8_t reg;
+
+ reg = addr;
+ ret = i2c_write(i2c_dev, &configs, ®, 1);
+
+ ret = i2c_read(i2c_dev, &configs, data, bytecnt);
+
+ return ret;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+void tlc59116_ledon(int led, uint8_t duty)
+{
+ switch (led) {
+ default:
+ case TLC59116_LED_0:
+ tlc59xxx_write(TLC59116_REG_PWM(0), duty);
+ tlc59xxx_write(TLC59116_REG_PWM(1), duty);
+ tlc59xxx_write(TLC59116_REG_PWM(2), duty);
+ break;
+
+ case TLC59116_LED_1:
+ tlc59xxx_write(TLC59116_REG_PWM(4), duty);
+ tlc59xxx_write(TLC59116_REG_PWM(5), duty);
+ tlc59xxx_write(TLC59116_REG_PWM(6), duty);
+ break;
+
+ case TLC59116_LED_2:
+ tlc59xxx_write(TLC59116_REG_PWM(9), duty);
+ tlc59xxx_write(TLC59116_REG_PWM(10), duty);
+ tlc59xxx_write(TLC59116_REG_PWM(11), duty);
+ break;
+
+ case TLC59116_LED_3:
+ tlc59xxx_write(TLC59116_REG_PWM(13), duty);
+ tlc59xxx_write(TLC59116_REG_PWM(14), duty);
+ tlc59xxx_write(TLC59116_REG_PWM(15), duty);
+ break;
+ }
+}
+
+void tlc59116_ledoff(int led, int rgb)
+{
+ switch (led) {
+ default:
+ case TLC59116_LED_0:
+ tlc59xxx_write(TLC59116_REG_PWM(4), 0x0);
+ tlc59xxx_write(TLC59116_REG_PWM(5), 0x0);
+ tlc59xxx_write(TLC59116_REG_PWM(6), 0x0);
+ break;
+
+ case TLC59116_LED_1:
+ tlc59xxx_write(TLC59116_REG_PWM(4), 0x0);
+ tlc59xxx_write(TLC59116_REG_PWM(5), 0x0);
+ tlc59xxx_write(TLC59116_REG_PWM(6), 0x0);
+ break;
+
+ case TLC59116_LED_2:
+ tlc59xxx_write(TLC59116_REG_PWM(4), 0x0);
+ tlc59xxx_write(TLC59116_REG_PWM(5), 0x0);
+ tlc59xxx_write(TLC59116_REG_PWM(6), 0x0);
+ break;
+
+ case TLC59116_LED_3:
+ tlc59xxx_write(TLC59116_REG_PWM(4), 0x0);
+ tlc59xxx_write(TLC59116_REG_PWM(5), 0x0);
+ tlc59xxx_write(TLC59116_REG_PWM(6), 0x0);
+ break;
+ }
+}
+
+int tlc59116_initialize(void)
+{
+ uint8_t port = 0;
+
+ i2c_dev = up_i2cinitialize(port);
+ if (i2c_dev == NULL) {
+ slldbg("i2ctest_main: up_i2cinitialize(i2c:%d) failed\n", port);
+ return ERROR;
+ }
+
+ configs.frequency = 100000;
+ configs.address = TLC59116_ADDR;
+ configs.addrlen = 7;
+
+ tlc59xxx_write(TLC59116_REG_MODE1, 0x00);
+ tlc59xxx_write(TLC59116_REG_MODE2, 0x00);
+
+ /*
+ * LED driver x is individual brightness and group dimming/blinking
+ * can be controlled through its PWMx register.
+ */
+ tlc59xxx_write(TLC59116_REG_LED(0), 0xFF);
+ tlc59xxx_write(TLC59116_REG_LED(1), 0xFF);
+ tlc59xxx_write(TLC59116_REG_LED(2), 0xFF);
+ tlc59xxx_write(TLC59116_REG_LED(3), 0xFF);
+
+ /*
+ * 97-kHz fixed frequency signal is used for each output.
+ * Set 8 steps to LED0~3 (duty 3.1%) as default.
+ */
+ tlc59116_ledon(TLC59116_LED_0, 0x8);
+ tlc59116_ledon(TLC59116_LED_1, 0x8);
+ tlc59116_ledon(TLC59116_LED_2, 0x8);
+ tlc59116_ledon(TLC59116_LED_3, 0x8);
+
+ return OK;
+}
projects / rtos / tinyara.git / commitdiff