4digitdisplay: added new 4digitdisplay module

Signed-off-by: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>

examples/4digitdisplay.cxx

@@ -0,0 +1,42 @@
+/*
+ * Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
+ * Copyright (c) 2014 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <unistd.h>
+#include <iostream>
+#include "tm1637.h"
+
+int
+main(int argc, char **argv)
+{
+	uint8_t data[] = { 0xaa, 0xff, 0xff, 0xff };
+
+    upm::TM1637 *display = new upm::TM1637(8, 9); // di - 8, dcki - 9
+	display->write ("1981");
+	
+	std::cout << "exiting application" << std::endl;
+
+	delete display;
+
+    return 0;
+}

examples/CMakeLists.txt

@@ -5,12 +5,14 @@ add_executable (lcm-lcd lcm-lcd.cxx)
 add_executable (rgb-lcd rgb-lcd.cxx)
 add_executable (buzzer-sound buzzer-sound.cxx)
 add_executable (led-bar led-bar.cxx)
+add_executable (seg-lcd 4digitdisplay.cxx)
 
 include_directories (${PROJECT_SOURCE_DIR}/src/hmc5883l)
 include_directories (${PROJECT_SOURCE_DIR}/src/grove)
 include_directories (${PROJECT_SOURCE_DIR}/src/lcd)
 include_directories (${PROJECT_SOURCE_DIR}/src/buzzer)
 include_directories (${PROJECT_SOURCE_DIR}/src/ledbar)
+include_directories (${PROJECT_SOURCE_DIR}/src/4digitdisplay)
 
 target_link_libraries (compass hmc5883l ${CMAKE_THREAD_LIBS_INIT})
 target_link_libraries (groveled grove ${CMAKE_THREAD_LIBS_INIT})
@@ -19,3 +21,4 @@ target_link_libraries (lcm-lcd i2clcd ${CMAKE_THREAD_LIBS_INIT})
 target_link_libraries (rgb-lcd i2clcd ${CMAKE_THREAD_LIBS_INIT})
 target_link_libraries (buzzer-sound buzzer ${CMAKE_THREAD_LIBS_INIT})
 target_link_libraries (led-bar ledbar ${CMAKE_THREAD_LIBS_INIT})
+target_link_libraries (seg-lcd 4digitdisplay ${CMAKE_THREAD_LIBS_INIT})

src/4digitdisplay/CMakeLists.txt

@@ -0,0 +1,4 @@
+set (libname "4digitdisplay")
+add_library (4digitdisplay SHARED tm1637.cxx)
+include_directories (${MAA_INCLUDE_DIR})
+target_link_libraries (4digitdisplay ${MAA_LIBRARIES})

src/4digitdisplay/jsupm_tm1637.i

@@ -0,0 +1,7 @@
+%module jsupm_tm1637
+
+%{
+    #include "tm1637.h"
+%}
+
+%include "tm1637.h"

src/4digitdisplay/pyupm_tm1637.i

@@ -0,0 +1,8 @@
+%module pyupm_tm1637
+
+%feature("autodoc", "3");
+
+%include "tm1637.h"
+%{
+    #include "tm1637.h"
+%}

src/4digitdisplay/tm1637.cxx

@@ -0,0 +1,190 @@
+/*
+ * Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
+ * Copyright (c) 2014 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <iostream>
+#include <unistd.h>
+
+#include "tm1637.h"
+
+using namespace upm;
+
+const uint8_t digitToSegment[] = {
+ 	// XGFEDCBA
+	0b00111111,    // 0
+	0b00000110,    // 1
+	0b01011011,    // 2
+	0b01001111,    // 3
+	0b01100110,    // 4
+	0b01101101,    // 5
+	0b01111101,    // 6
+	0b00000111,    // 7
+	0b01111111,    // 8
+	0b01101111,    // 9
+	0b01110111,    // A
+	0b01111100,    // B
+	0b00111001,    // C
+	0b01000111,    // D
+	0b01111001,    // E
+	0b01110001     // F
+};
+
+TM1637::TM1637 (uint8_t di, uint8_t dcki) {
+	maa_result_t error = MAA_SUCCESS;
+	maa_init();
+
+	// init clock context
+	m_clkPinCtx = maa_gpio_init(dcki);
+	if (m_clkPinCtx == NULL) {
+        fprintf(stderr, "Are you sure that pin%d you requested is valid on your platform?", dcki);
+		exit(1);
+	}
+	// init data context
+	m_dataPinCtx = maa_gpio_init(di);
+	if (m_dataPinCtx == NULL) {
+        fprintf(stderr, "Are you sure that pin%d you requested is valid on your platform?", di);
+		exit(1);
+	}
+	
+	// set direction (out)
+	error = maa_gpio_dir(m_clkPinCtx, MAA_GPIO_IN);
+    if (error != MAA_SUCCESS) {
+        maa_result_print(error);
+    }
+
+	// set direction (out)
+	error = maa_gpio_dir(m_dataPinCtx, MAA_GPIO_IN);
+    if (error != MAA_SUCCESS) {
+        maa_result_print(error);
+    }
+
+	error = maa_gpio_write (m_dataPinCtx, LOW);
+	error = maa_gpio_write (m_clkPinCtx, LOW);
+}
+
+TM1637::~TM1637() {
+	maa_result_t error = MAA_SUCCESS;
+	error = maa_gpio_close (m_dataPinCtx);
+    if (error != MAA_SUCCESS) {
+        maa_result_print(error);
+    }
+	error = maa_gpio_close (m_clkPinCtx);
+    if (error != MAA_SUCCESS) {
+        maa_result_print(error);
+    }
+}
+
+maa_result_t 
+TM1637::setBrightness (uint8_t level) {
+	m_brightness = level;
+}
+
+maa_result_t 
+TM1637::setSegments (const uint8_t segments[], uint8_t length, uint8_t pos) {
+	start();
+	writeByte(TM1637_I2C_COMM1);
+	stop();
+
+	start();
+	writeByte(TM1637_I2C_COMM2 + (pos & 0x03));
+	for (uint8_t idx = 0; idx < length; idx++) {
+		writeByte(segments[idx]);
+	}
+	stop();
+
+	start();
+	writeByte(TM1637_I2C_COMM3 + (m_brightness & 0x0f));
+	stop();
+}
+
+maa_result_t 
+TM1637::write (std::string msg) {
+	char leter = '\0';
+	uint8_t data[] = { 0x0, 0x0, 0x0, 0x0 };
+	for (uint8_t idx = 0; idx < msg.length(); idx++) {
+		leter = msg[idx];
+		if (idx < 4) {
+			data[idx] = digitToSegment[strtol(&leter, NULL, 16)];
+		}
+	}
+	setBrightness (0x0f);
+	setSegments(data);
+}
+
+maa_result_t 
+TM1637::pinMode (maa_gpio_context ctx, gpio_dir_t mode) {
+	maa_result_t error = MAA_SUCCESS;
+	error = maa_gpio_dir(ctx, mode);
+    if (error != MAA_SUCCESS) {
+        maa_result_print(error);
+    }
+}
+
+maa_result_t 
+TM1637::start() {
+	pinMode (m_dataPinCtx, MAA_GPIO_OUT);
+	usleep(PULSE_LENGTH);
+}
+
+maa_result_t 
+TM1637::stop() {
+	pinMode (m_dataPinCtx, MAA_GPIO_OUT);
+	usleep(PULSE_LENGTH);
+	pinMode (m_clkPinCtx, MAA_GPIO_IN);
+	usleep(PULSE_LENGTH);
+	pinMode (m_dataPinCtx, MAA_GPIO_IN);
+	usleep(PULSE_LENGTH);
+}
+
+maa_result_t 
+TM1637::writeByte(uint8_t value) {
+	for (uint8_t idx = 0; idx < 8; idx++) {
+		pinMode(m_clkPinCtx, MAA_GPIO_OUT);
+		usleep(PULSE_LENGTH);
+		if (value & 0x01) {
+	  		pinMode(m_dataPinCtx, MAA_GPIO_IN);
+		} else {
+	  		pinMode(m_dataPinCtx, MAA_GPIO_OUT);
+		}
+		usleep(PULSE_LENGTH);
+
+		pinMode(m_clkPinCtx, MAA_GPIO_IN);
+		usleep(PULSE_LENGTH);
+		value = value >> 1;
+	}
+
+	pinMode(m_clkPinCtx, MAA_GPIO_OUT);
+	pinMode(m_dataPinCtx, MAA_GPIO_IN);
+	usleep(PULSE_LENGTH);
+
+	pinMode(m_clkPinCtx, MAA_GPIO_IN);
+	usleep(PULSE_LENGTH);
+
+	uint8_t ack = maa_gpio_read (m_dataPinCtx);
+	if (ack == 0) {
+    	pinMode(m_dataPinCtx, MAA_GPIO_OUT);
+	} usleep(PULSE_LENGTH);
+
+	pinMode(m_clkPinCtx, MAA_GPIO_OUT);
+	usleep(50);
+}

src/4digitdisplay/tm1637.h

@@ -0,0 +1,82 @@
+/*
+ * Author: Yevgeniy Kiveisha <yevgeniy.kiveisha@intel.com>
+ * Copyright (c) 2014 Intel Corporation.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+#pragma once
+
+#include <string>
+#include <maa/aio.h>
+#include <maa/gpio.h>
+
+//
+//      A
+//     ---
+//  F |   | B
+//     -G-
+//  E |   | C
+//     ---
+//      D
+
+#define SEG_A   			0b00000001
+#define SEG_B   			0b00000010
+#define SEG_C   			0b00000100
+#define SEG_D   			0b00001000
+#define SEG_E   			0b00010000
+#define SEG_F   			0b00100000
+#define SEG_G   			0b01000000
+
+#define TM1637_I2C_COMM1    0x40
+#define TM1637_I2C_COMM2    0xC0
+#define TM1637_I2C_COMM3    0x80
+
+#define PULSE_LENGTH		50
+
+#define HIGH          		1
+#define LOW	        		0
+
+namespace upm {
+
+class TM1637 {
+    public:
+		TM1637 (uint8_t di, uint8_t dcki);
+		~TM1637 ();
+		maa_result_t setBrightness (uint8_t level);
+		maa_result_t setSegments (const uint8_t segments[], uint8_t length = 4, uint8_t pos = 0);
+		maa_result_t write (std::string msg);
+		
+		std::string name()
+        {
+            return m_name;
+        }
+	private:
+		maa_result_t start();
+		maa_result_t stop();
+		maa_result_t writeByte (uint8_t value);
+		maa_result_t pinMode (maa_gpio_context ctx, gpio_dir_t mode);
+
+		std::string m_name;
+		maa_gpio_context m_clkPinCtx;
+		maa_gpio_context m_dataPinCtx;
+		uint8_t m_brightness;
+};
+
+}

src/CMakeLists.txt

@@ -3,3 +3,4 @@ add_subdirectory (grove)
 add_subdirectory (lcd)
 add_subdirectory (buzzer)
 add_subdirectory (ledbar)
+add_subdirectory (4digitdisplay)