--- /dev/null
+/**************************************************************************/
+/*!
+ @file s6b33b6x.c
+ @author K. Townsend (www.adafruit.com)
+
+ @section DESCRIPTION
+
+ Driver for S6B33B6X 128x128 pixel RGB OLED displays.
+
+ This driver uses a 3 or 4-pin SPI interface and 16-bit RGB565 colours.
+
+ @section LICENSE
+
+ Software License Agreement (BSD License)
+
+ Copyright (c) 2012, Adafruit Industries
+ All rights reserved.
+
+ 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 of the copyright holders 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 ''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 HOLDER 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.
+*/
+/**************************************************************************/
+#include "s6b33b6x.h"
+#include "core/systick/systick.h"
+
+static volatile lcdOrientation_t lcdOrientation = LCD_ORIENTATION_PORTRAIT;
+static lcdProperties_t s6b33b6xProperties = { 128, 128, false, false, false, false, false };
+
+/*************************************************/
+/* Private Methods */
+/*************************************************/
+
+#define CMD(c) do { CLR_DC; CLR_CS; s6b33b6xSendByte( c, 1 ); SET_CS; } while (0)
+#define DATA(c) do { SET_DC; CLR_CS; s6b33b6xSendByte( c, 0 ); SET_CS; } while (0)
+#define DELAY(ms) do { systickDelay( ms / CFG_SYSTICK_DELAY_IN_MS ); } while(0)
+
+/**************************************************************************/
+/*!
+ @brief Simulates an SPI write using GPIO.
+
+ @param[in] byte
+ The byte to send
+ @param[in] command
+ 1 if this is a command, 0 if it is data
+*/
+/**************************************************************************/
+void s6b33b6xSendByte(uint8_t byte, uint8_t command)
+{
+ int8_t i;
+
+ // Make sure clock pin starts high (CPOL = 1)
+ SET_SCK;
+
+#if defined S6B33B6X_BUS_SPI3
+ CLR_SCK;
+ if (command)
+ {
+ CLR_SID;
+ }
+ else
+ {
+ SET_SID;
+ }
+ // Read on rising edge (CPHA = 1)
+ SET_SCK
+#endif
+
+ for (i=0; i<8; i++)
+ {
+ // Set clock pin low
+ CLR_SCK;
+ // Set data pin high or low depending on the value of the current bit
+ if((byte & 0x80) == 0x80)
+ {
+ SET_SID;
+ }
+ else
+ {
+ CLR_SID;
+ }
+ // Set clock pin high (CPHA = 1, read on rising edge)
+ SET_SCK;
+ byte = (byte << 1);
+ }
+}
+
+/**************************************************************************/
+/*!
+ @brief Sets the cursor to the specified X/Y position
+*/
+/**************************************************************************/
+void s6b33b6xSetCursor(uint8_t x, uint8_t y)
+{
+ if ((x >= s6b33b6xProperties.width) || (y >= s6b33b6xProperties.height))
+ return;
+
+ CMD(S6B33B6X_CMD_ROWADDRESSAREASET);
+ CMD(2+y); // Start Address
+ CMD(129); // End Address (129)
+
+ CMD(S6B33B6X_CMD_COLUMNADDRESSAREASET);
+ CMD(2+x); // Start Address
+ CMD(129); // End Address (129)
+}
+
+/*************************************************/
+/* Public Methods */
+/*************************************************/
+
+/**************************************************************************/
+/*!
+ @brief Configures any pins or HW and initialises the LCD controller
+*/
+/**************************************************************************/
+void lcdInit(void)
+{
+ gpioInit();
+
+ // Make sure CS starts high
+ SET_CS;
+
+ // Make sure clock pin starts high (CPOL = 1)
+ SET_SCK;
+
+ // Set all pins to output
+ gpioSetDir(S6B33B6X_SCK_PORT, S6B33B6X_SCK_PIN, gpioDirection_Output);
+ gpioSetDir(S6B33B6X_SID_PORT, S6B33B6X_SID_PIN, gpioDirection_Output);
+ gpioSetDir(S6B33B6X_RST_PORT, S6B33B6X_RST_PIN, gpioDirection_Output);
+ gpioSetDir(S6B33B6X_CS_PORT, S6B33B6X_CS_PIN, gpioDirection_Output);
+
+#if !defined S6B33B6X_BUS_SPI3
+ gpioSetDir(S6B33B6X_DC_PORT, S6B33B6X_DC_PIN, gpioDirection_Output);
+#endif
+
+ // Reset the LCD
+ SET_RST;
+ DELAY(20);
+ CLR_RST;
+ DELAY(50);
+ SET_RST;
+ DELAY(20);
+
+ // Init sequence
+ CMD(S6B33B6X_CMD_STANDBYMODEOFF);
+ DELAY(50);
+ CMD(S6B33B6X_CMD_OSCILLATIONMODESET);
+ CMD(0x01);
+ CMD(S6B33B6X_CMD_DCDCCONTROL);
+ CMD(0x0f);
+ CMD(S6B33B6X_CMD_DCDCAMPONOFFSET);
+ CMD(0x0f);
+ DELAY(50);
+ CMD(S6B33B6X_CMD_TEMPCOMPENSATIONSET);
+ CMD(0x01);
+ CMD(0x2e);
+ CMD(S6B33B6X_CMD_RAMSKIPAREASET);
+ CMD(0x00);
+ CMD(S6B33B6X_CMD_SPECIFIEDDISPLAYPATTERN);
+ CMD(0x00);
+ CMD(S6B33B6X_CMD_DRIVEROUTPUTMODESET);
+ CMD(0x03);
+ CMD(S6B33B6X_CMD_DCDCCLOCKDIVISIONSET);
+ CMD(0x22);
+ CMD(S6B33B6X_CMD_ADDRESSINGMODESET);
+ CMD(0x1d);
+ CMD(S6B33B6X_CMD_ROWVECTORMODESET);
+ CMD(0x0e);
+ CMD(S6B33B6X_CMD_ENTRYMODESET);
+ CMD(0x80);
+ CMD(S6B33B6X_CMD_ROWADDRESSAREASET);
+ CMD(0x00);
+ CMD(0x83);
+ CMD(S6B33B6X_CMD_COLUMNADDRESSAREASET);
+ CMD(0x00);
+ CMD(0x83);
+ CMD(S6B33B6X_CMD_NBLOCKINVERSIONSET);
+ CMD(0x8d);
+ CMD(S6B33B6X_CMD_CONTRASTCONTROL);
+ CMD(0x45);
+ CMD(0x2b);
+ CMD(0x69);
+ CMD(0x22);
+ CMD(0x11);
+ CMD(S6B33B6X_CMD_PARTIALDISPLAYMODESET);
+ CMD(0x00);
+ CMD(S6B33B6X_CMD_PARTIALDISPLAYSTARTLINE);
+ CMD(0x00);
+ CMD(S6B33B6X_CMD_PARTIALDISPLAYENDLINE);
+ CMD(0x9f);
+ CMD(0x59);
+ CMD(0x00);
+ CMD(0x00);
+ CMD(0x9f);
+ CMD(0x00);
+ CMD(S6B33B6X_CMD_DISPLAYON);
+ DELAY(500);
+
+ // Clear screen
+ lcdFillRGB(COLOR_RED);
+}
+
+/**************************************************************************/
+/*!
+ @brief Enables or disables the LCD backlight
+*/
+/**************************************************************************/
+void lcdBacklight(bool state)
+{
+ // ToDo: Add BL pin and toggle here
+}
+
+/**************************************************************************/
+/*!
+ @brief Renders a simple test pattern on the LCD
+*/
+/**************************************************************************/
+void lcdTest(void)
+{
+ uint32_t i,j;
+ s6b33b6xSetCursor(0, 0);
+
+ for(i=0;i<128;i++)
+ {
+ for(j=0;j<128;j++)
+ {
+ if(i>111){DATA(COLOR_WHITE>>8);DATA((uint8_t)COLOR_WHITE);}
+ else if(i>95){DATA(COLOR_BLUE>>8);DATA((uint8_t)COLOR_BLUE);}
+ else if(i>79){DATA(COLOR_GREEN>>8);DATA((uint8_t)COLOR_GREEN);}
+ else if(i>63){DATA(COLOR_CYAN>>8);DATA((uint8_t)COLOR_CYAN);}
+ else if(i>47){DATA(COLOR_RED>>8);DATA((uint8_t)COLOR_RED);}
+ else if(i>31){DATA(COLOR_MAGENTA>>8);DATA((uint8_t)COLOR_MAGENTA);}
+ else if(i>15){DATA(COLOR_YELLOW>>8);DATA((uint8_t)COLOR_YELLOW);}
+ else {DATA(COLOR_BLACK>>8);DATA((uint8_t)COLOR_BLACK);}
+ }
+ }
+}
+
+/**************************************************************************/
+/*!
+ @brief Fills the LCD with the specified 16-bit color
+*/
+/**************************************************************************/
+void lcdFillRGB(uint16_t data)
+{
+ uint16_t x,y;
+
+ s6b33b6xSetCursor(0, 0);
+
+ for(x=0;x<128;x++)
+ {
+ for(y=0;y<128;y++)
+ {
+ DATA(data>>8);
+ DATA(data & 0xFF);
+ }
+ }
+}
+
+/**************************************************************************/
+/*!
+ @brief Draws a single pixel at the specified X/Y location
+*/
+/**************************************************************************/
+void lcdDrawPixel(uint16_t x, uint16_t y, uint16_t color)
+{
+ if ((x >= s6b33b6xProperties.width) || (y >= s6b33b6xProperties.height))
+ return;
+
+ s6b33b6xSetCursor((uint8_t)x, (uint8_t)y);
+ DATA(color >> 8);
+ DATA(color);
+}
+
+/**************************************************************************/
+/*!
+ @brief Draws an array of consecutive RGB565 pixels (much
+ faster than addressing each pixel individually)
+*/
+/**************************************************************************/
+void lcdDrawPixels(uint16_t x, uint16_t y, uint16_t *data, uint32_t len)
+{
+ // ToDo
+}
+
+/**************************************************************************/
+/*!
+ @brief Optimised routine to draw a horizontal line faster than
+ setting individual pixels
+*/
+/**************************************************************************/
+void lcdDrawHLine(uint16_t x0, uint16_t x1, uint16_t y, uint16_t color)
+{
+ // ToDo
+}
+
+/**************************************************************************/
+/*!
+ @brief Optimised routine to draw a vertical line faster than
+ setting individual pixels
+*/
+/**************************************************************************/
+void lcdDrawVLine(uint16_t x, uint16_t y0, uint16_t y1, uint16_t color)
+{
+ // Not supported
+}
+
+/**************************************************************************/
+/*!
+ @brief Gets the 16-bit color of the pixel at the specified location
+*/
+/**************************************************************************/
+uint16_t lcdGetPixel(uint16_t x, uint16_t y)
+{
+ // Not supported
+ return 0;
+}
+
+/**************************************************************************/
+/*!
+ @brief Sets the LCD orientation to horizontal and vertical
+*/
+/**************************************************************************/
+void lcdSetOrientation(lcdOrientation_t orientation)
+{
+ // Not supported
+}
+
+/**************************************************************************/
+/*!
+ @brief Gets the current screen orientation (horizontal or vertical)
+*/
+/**************************************************************************/
+lcdOrientation_t lcdGetOrientation(void)
+{
+ return lcdOrientation;
+}
+
+/**************************************************************************/
+/*!
+ @brief Gets the width in pixels of the LCD screen (varies depending
+ on the current screen orientation)
+*/
+/**************************************************************************/
+uint16_t lcdGetWidth(void)
+{
+ return s6b33b6xProperties.width;
+}
+
+/**************************************************************************/
+/*!
+ @brief Gets the height in pixels of the LCD screen (varies depending
+ on the current screen orientation)
+*/
+/**************************************************************************/
+uint16_t lcdGetHeight(void)
+{
+ return s6b33b6xProperties.height;
+}
+
+/**************************************************************************/
+/*!
+ @brief Scrolls the contents of the LCD screen vertically the
+ specified number of pixels using a HW optimised routine
+*/
+/**************************************************************************/
+void lcdScroll(int16_t pixels, uint16_t fillColor)
+{
+ // Not Supported
+}
+
+/**************************************************************************/
+/*!
+ @brief Gets the controller's 16-bit (4 hexdigit) ID
+*/
+/**************************************************************************/
+uint16_t lcdGetControllerID(void)
+{
+ return 0x33b6;
+}
+
+/**************************************************************************/
+/*!
+ @brief Returns the LCDs 'lcdProperties_t' that describes the LCDs
+ generic capabilities and dimensions
+*/
+/**************************************************************************/
+lcdProperties_t lcdGetProperties(void)
+{
+ return s6b33b6xProperties;
+}
projects / hackover2013-badge-firmware.git / blobdiff