HWLCD.h

00001 /**************************************************************************/
00002 /*!
00003     @file     HWLCD.h
00004     @author   Jonne Valola
00005 
00006     @section LICENSE
00007 
00008     Software License Agreement (BSD License)
00009 
00010     Copyright (c) 2016, Jonne Valola
00011     All rights reserved.
00012 
00013     Redistribution and use in source and binary forms, with or without
00014     modification, are permitted provided that the following conditions are met:
00015     1. Redistributions of source code must retain the above copyright
00016     notice, this list of conditions and the following disclaimer.
00017     2. Redistributions in binary form must reproduce the above copyright
00018     notice, this list of conditions and the following disclaimer in the
00019     documentation and/or other materials provided with the distribution.
00020     3. Neither the name of the copyright holders nor the
00021     names of its contributors may be used to endorse or promote products
00022     derived from this software without specific prior written permission.
00023 
00024     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
00025     EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
00026     WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
00027     DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
00028     DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
00029     (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
00030     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
00031     ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
00032     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
00033     SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
00034 */
00035 /**************************************************************************/
00036 
00037 #ifndef __HWLCD_H__
00038 #define __HWLCD_H__
00039 
00040 #include "mbed.h"
00041 #include "gpio_api.h"
00042 #include "pinmap.h"
00043 
00044 #define write_command write_command_16
00045 #define write_data write_data_16
00046 
00047 namespace Pokitto {
00048 
00049 
00050 extern void initBacklight();
00051 extern void setBacklight(float);
00052 extern void lcdFillSurface(uint16_t);
00053 extern void lcdPixel(int16_t x, int16_t y, uint16_t c);
00054 extern void setWindow(uint8_t x1, uint8_t y1, uint8_t x2, uint8_t y2);
00055 extern void lcdTile(int16_t x0, int16_t y0, int16_t width, int16_t height, uint16_t* gfx);
00056 extern void lcdRectangle(int16_t x, int16_t y,int16_t x2, int16_t y2, uint16_t color);
00057 extern void lcdInit();
00058 extern void lcdSleep();
00059 extern void lcdWakeUp();
00060 extern void lcdRefresh(uint8_t *, uint16_t*);
00061 extern void lcdRefreshAB(uint8_t *, uint16_t*);
00062 extern void lcdRefreshGB(uint8_t *, uint16_t*);
00063 extern void lcdRefreshRegionMode1(int16_t x0, int16_t y0, int16_t x1, int16_t y1, uint8_t * scrbuf, uint16_t * paletteptr);
00064 extern void lcdRefreshMode1(uint8_t *, uint16_t*);
00065 extern void lcdRefreshMode2(uint8_t *, uint16_t*);
00066 extern void lcdRefreshMode3(uint8_t *, uint16_t*);
00067 extern void lcdRefreshModeGBC(uint8_t *, uint16_t*);
00068 /** Update LCD from 1-bit tile mode */
00069 extern void lcdRefreshT1(uint8_t*, uint8_t*, uint8_t*, uint16_t*);
00070 extern void lcdClear();
00071 extern void lcdFill(uint16_t);
00072 /** Blit one word of data*/
00073 extern void blitWord(uint16_t);
00074 
00075 /**************************************************************************/
00076 /**                          PINS AND PORTS                              **/
00077 /**************************************************************************/
00078 
00079 #if POK_BOARDREV == 1
00080 /** 2-layer board version 1.3 **/
00081  #define LCD_CD_PORT           0
00082  #define LCD_CD_PIN            2
00083  #define LCD_WR_PORT           1
00084  #define LCD_WR_PIN            23
00085  #define LCD_RD_PORT           1
00086  #define LCD_RD_PIN            24
00087  #define LCD_RES_PORT          1
00088  #define LCD_RES_PIN           28
00089 #else
00090 /** 4-layer board version 2.1 **/
00091  #define LCD_CD_PORT           0
00092  #define LCD_CD_PIN            2
00093  #define LCD_WR_PORT           1
00094  #define LCD_WR_PIN            12
00095  #define LCD_RD_PORT           1
00096  #define LCD_RD_PIN            24
00097  #define LCD_RES_PORT          1
00098  #define LCD_RES_PIN           0
00099 #endif
00100 
00101 /**************************************************************************/
00102 /**                          LCD CONTROL MACROS                          **/
00103 /**************************************************************************/
00104 
00105 #define CLR_RESET LPC_GPIO_PORT->CLR[LCD_RES_PORT] = 1 << LCD_RES_PIN; //RST = (0); // Clear pin
00106 #define SET_RESET LPC_GPIO_PORT->SET[LCD_RES_PORT] = 1 << LCD_RES_PIN; // RST = (1); // Set pin
00107 
00108 #define CLR_CD { LPC_GPIO_PORT->CLR[LCD_CD_PORT] = 1 << LCD_CD_PIN; } // RS = (0); // Clear pin
00109 #define SET_CD { LPC_GPIO_PORT->SET[LCD_CD_PORT] = 1 << LCD_CD_PIN; }// RS = (1); // Set pin
00110 
00111 #define CLR_WR { LPC_GPIO_PORT->CLR[LCD_WR_PORT] = 1 << LCD_WR_PIN; __asm("nop");__asm("nop");}//WR = (0); // Clear pin
00112 #define SET_WR LPC_GPIO_PORT->SET[LCD_WR_PORT] = 1 << LCD_WR_PIN; //WR = (1); // Set pin
00113 
00114 #define CLR_RD LPC_GPIO_PORT->CLR[LCD_RD_PORT] = 1 << LCD_RD_PIN; //RD = (0); // Clear pin
00115 #define SET_RD LPC_GPIO_PORT->SET[LCD_RD_PORT] = 1 << LCD_RD_PIN; //RD = (1); // Set pin
00116 
00117 #define SET_CS  //CS tied to ground
00118 #define CLR_CS
00119 
00120 #define CLR_CS_CD_SET_RD_WR {CLR_CD; SET_RD; SET_WR;}
00121 #define CLR_CS_SET_CD_RD_WR {SET_CD; SET_RD; SET_WR;}
00122 #define SET_CD_RD_WR {SET_CD; SET_RD; SET_WR;}
00123 #define SET_WR_CS SET_WR;
00124 
00125 #define SET_MASK_P2 LPC_GPIO_PORT->MASK[2] = ~(0x7FFF8); //mask P2_3 ...P2_18
00126 #define CLR_MASK_P2 LPC_GPIO_PORT->MASK[2] = 0; // all on
00127 
00128 
00129 
00130 /**************************************************************************/
00131 /**                          SETUP GPIO & DATA                           **/
00132 /**************************************************************************/
00133 
00134 static void setup_gpio()
00135 {
00136     /** control lines **/
00137     LPC_GPIO_PORT->DIR[LCD_CD_PORT] |= (1  << LCD_CD_PIN );
00138     LPC_GPIO_PORT->DIR[LCD_WR_PORT] |= (1  << LCD_WR_PIN );
00139     LPC_GPIO_PORT->DIR[LCD_RD_PORT] |= (1  << LCD_RD_PIN );
00140     LPC_GPIO_PORT->DIR[LCD_RES_PORT] |= (1  << LCD_RES_PIN );
00141     /** data lines **/
00142     LPC_GPIO_PORT->DIR[2] |= (0xFFFF  << 3);  // P2_3...P2_18 as output
00143 
00144     pin_mode(P2_3,PullNone); // turn off pull-up
00145     pin_mode(P2_4,PullNone); // turn off pull-up
00146     pin_mode(P2_5,PullNone); // turn off pull-up
00147     pin_mode(P2_6,PullNone); // turn off pull-up
00148 
00149     pin_mode(P2_7,PullNone); // turn off pull-up
00150     pin_mode(P2_8,PullNone); // turn off pull-up
00151     pin_mode(P2_9,PullNone); // turn off pull-up
00152     pin_mode(P2_10,PullNone); // turn off pull-up
00153 
00154     pin_mode(P2_11,PullNone); // turn off pull-up
00155     pin_mode(P2_12,PullNone); // turn off pull-up
00156     pin_mode(P2_13,PullNone); // turn off pull-up
00157     pin_mode(P2_14,PullNone); // turn off pull-up
00158 
00159     pin_mode(P2_15,PullNone); // turn off pull-up
00160     pin_mode(P2_16,PullNone); // turn off pull-up
00161     pin_mode(P2_17,PullNone); // turn off pull-up
00162     pin_mode(P2_18,PullNone); // turn off pull-up
00163 }
00164 
00165 
00166 
00167 
00168 #define HI_BYTE(d) (LPC_GPIO->MPIN[1]= (d<<13)) //((d>>8)<<21))
00169 #define LO_BYTE(d) (LPC_GPIO->MPIN[1]= (d<<21)) //because of mask makes no difference
00170 
00171 // Macros to set data bus direction to input/output
00172 #define LCD_GPIO2DATA_SETINPUT  GPIO_GPIO2DIR &= ~LCD_DATA_MASK
00173 #define LCD_GPIO2DATA_SETOUTPUT GPIO_GPIO2DIR |= LCD_DATA_MASK
00174 
00175 
00176 // Basic Color definitions
00177 #define COLOR_BLACK                         (uint16_t)(0x0000)
00178 #define COLOR_BLUE                          (uint16_t)(0x001F)
00179 #define COLOR_RED                           (uint16_t)(0xF800)
00180 #define COLOR_GREEN                         (uint16_t)(0x07E0)
00181 #define COLOR_CYAN                          (uint16_t)(0x07FF)
00182 #define COLOR_MAGENTA                       (uint16_t)(0xF81F)
00183 #define COLOR_YELLOW                        (uint16_t)(0xFFE0)
00184 #define COLOR_WHITE                         (uint16_t)(0xFFFF)
00185 
00186 // Grayscale Values
00187 #define COLOR_GRAY_15                       (uint16_t)(0x0861)    //  15  15  15
00188 #define COLOR_GRAY_30                       (uint16_t)(0x18E3)    //  30  30  30
00189 #define COLOR_GRAY_50                       (uint16_t)(0x3186)    //  50  50  50
00190 #define COLOR_GRAY_80                       (uint16_t)(0x528A)    //  80  80  80
00191 #define COLOR_GRAY_128                      (uint16_t)(0x8410)    // 128 128 128
00192 #define COLOR_GRAY_200                      (uint16_t)(0xCE59)    // 200 200 200
00193 #define COLOR_GRAY_225                      (uint16_t)(0xE71C)    // 225 225 225
00194 
00195 
00196 } // namespace pokitto
00197 #endif // __HWLCD_H_
00198