u8g_dev_uc1701_mini12864.c

00001 /*
00002 
00003   u8g_dev_uc1701_mini12864.c (dealextreme)
00004 
00005   Universal 8bit Graphics Library
00006   
00007   Copyright (c) 2011, olikraus@gmail.com
00008   All rights reserved.
00009 
00010   Redistribution and use in source and binary forms, with or without modification, 
00011   are permitted provided that the following conditions are met:
00012 
00013   * Redistributions of source code must retain the above copyright notice, this list 
00014     of conditions and the following disclaimer.
00015     
00016   * Redistributions in binary form must reproduce the above copyright notice, this 
00017     list of conditions and the following disclaimer in the documentation and/or other 
00018     materials provided with the distribution.
00019 
00020   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
00021   CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
00022   INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
00023   MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
00024   DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
00025   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
00026   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
00027   NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
00028   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
00029   CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
00030   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
00031   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
00032   ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
00033   
00034   
00035 */
00036 
00037 #include "u8g.h"
00038 
00039 #define WIDTH 128
00040 #define HEIGHT 64
00041 #define PAGE_HEIGHT 8
00042 
00043 static const uint8_t u8g_dev_uc1701_mini12864_init_seq[] PROGMEM = {
00044   U8G_ESC_CS(0),             /* disable chip */
00045   U8G_ESC_ADR(0),           /* instruction mode */
00046   U8G_ESC_RST(1),           /* do reset low pulse with (1*16)+2 milliseconds */
00047   U8G_ESC_CS(1),             /* enable chip */
00048 
00049   0x0e2,            /* soft reset */
00050   0x040,        /* set display start line to 0 */
00051   0x0a0,        /* ADC set to reverse */
00052   0x0c8,        /* common output mode */
00053   0x0a6,        /* display normal, bit val 0: LCD pixel off. */
00054   0x0a2,        /* LCD bias 1/9 */
00055   0x02f,        /* all power  control circuits on */
00056   0x0f8,        /* set booster ratio to */
00057   0x000,        /* 4x */
00058   0x023,        /* set V0 voltage resistor ratio to large */
00059   0x081,        /* set contrast */
00060   0x027,        /* contrast value */
00061   0x0ac,        /* indicator */
00062   0x000,        /* disable */
00063   0x0af,        /* display on */
00064 
00065   U8G_ESC_DLY(100),       /* delay 100 ms */
00066   0x0a5,                        /* display all points, ST7565 */
00067   U8G_ESC_DLY(100),       /* delay 100 ms */
00068   U8G_ESC_DLY(100),       /* delay 100 ms */
00069   0x0a4,                        /* normal display */
00070   U8G_ESC_CS(0),             /* disable chip */
00071   U8G_ESC_END                /* end of sequence */
00072 };
00073 
00074 static const uint8_t u8g_dev_uc1701_mini12864_data_start[] PROGMEM = {
00075   U8G_ESC_ADR(0),           /* instruction mode */
00076   U8G_ESC_CS(1),             /* enable chip */
00077   0x010,        /* set upper 4 bit of the col adr to 0 */
00078   0x000,        /* set lower 4 bit of the col adr to 4  */
00079   U8G_ESC_END                /* end of sequence */
00080 };
00081 
00082 uint8_t u8g_dev_uc1701_mini12864_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
00083 {
00084   switch(msg)
00085   {
00086     case U8G_DEV_MSG_INIT:
00087       u8g_InitCom(u8g, dev, U8G_SPI_CLK_CYCLE_300NS);
00088       u8g_WriteEscSeqP(u8g, dev, u8g_dev_uc1701_mini12864_init_seq);
00089       break;
00090     case U8G_DEV_MSG_STOP:
00091       break;
00092     case U8G_DEV_MSG_PAGE_NEXT:
00093       {
00094         u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem);
00095         u8g_WriteEscSeqP(u8g, dev, u8g_dev_uc1701_mini12864_data_start);    
00096         u8g_WriteByte(u8g, dev, 0x0b0 | pb->p.page); /* select current page */
00097         u8g_SetAddress(u8g, dev, 1);           /* data mode */
00098         if ( u8g_pb_WriteBuffer(pb, u8g, dev) == 0 )
00099           return 0;
00100         u8g_SetChipSelect(u8g, dev, 0);
00101       }
00102       break;
00103     case U8G_DEV_MSG_CONTRAST:
00104       u8g_SetChipSelect(u8g, dev, 1);
00105       u8g_SetAddress(u8g, dev, 0);          /* instruction mode */
00106       u8g_WriteByte(u8g, dev, 0x081);
00107       u8g_WriteByte(u8g, dev, (*(uint8_t *)arg) >> 2);
00108       u8g_SetChipSelect(u8g, dev, 0);      
00109       return 1;
00110   }
00111   return u8g_dev_pb8v1_base_fn(u8g, dev, msg, arg);
00112 }
00113 
00114 uint8_t u8g_dev_uc1701_mini12864_2x_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
00115 {
00116   switch(msg)
00117   {
00118     case U8G_DEV_MSG_INIT:
00119       u8g_InitCom(u8g, dev, U8G_SPI_CLK_CYCLE_300NS);
00120       u8g_WriteEscSeqP(u8g, dev, u8g_dev_uc1701_mini12864_init_seq);
00121       break;
00122     case U8G_DEV_MSG_STOP:
00123       break;
00124     case U8G_DEV_MSG_PAGE_NEXT:
00125       {
00126         u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem);
00127     
00128         u8g_WriteEscSeqP(u8g, dev, u8g_dev_uc1701_mini12864_data_start);    
00129         u8g_WriteByte(u8g, dev, 0x0b0 | (2*pb->p.page)); /* select current page */
00130         u8g_SetAddress(u8g, dev, 1);           /* data mode */
00131     u8g_WriteSequence(u8g, dev, pb->width, pb->buf); 
00132         u8g_SetChipSelect(u8g, dev, 0);
00133     
00134         u8g_WriteEscSeqP(u8g, dev, u8g_dev_uc1701_mini12864_data_start);    
00135         u8g_WriteByte(u8g, dev, 0x0b0 | (2*pb->p.page+1)); /* select current page */
00136         u8g_SetAddress(u8g, dev, 1);           /* data mode */
00137     u8g_WriteSequence(u8g, dev, pb->width, (uint8_t *)(pb->buf)+pb->width); 
00138         u8g_SetChipSelect(u8g, dev, 0);
00139       }
00140       break;
00141     case U8G_DEV_MSG_CONTRAST:
00142       u8g_SetChipSelect(u8g, dev, 1);
00143       u8g_SetAddress(u8g, dev, 0);          /* instruction mode */
00144       u8g_WriteByte(u8g, dev, 0x081);
00145       u8g_WriteByte(u8g, dev, (*(uint8_t *)arg) >> 2);
00146       u8g_SetChipSelect(u8g, dev, 0);      
00147       return 1;
00148   }
00149   return u8g_dev_pb16v1_base_fn(u8g, dev, msg, arg);
00150 }
00151 
00152 U8G_PB_DEV(u8g_dev_uc1701_mini12864_sw_spi, WIDTH, HEIGHT, PAGE_HEIGHT, u8g_dev_uc1701_mini12864_fn, U8G_COM_SW_SPI);
00153 U8G_PB_DEV(u8g_dev_uc1701_mini12864_hw_spi, WIDTH, HEIGHT, PAGE_HEIGHT, u8g_dev_uc1701_mini12864_fn, U8G_COM_HW_SPI);
00154 
00155 uint8_t u8g_dev_uc1701_mini12864_2x_buf[WIDTH*2] U8G_NOCOMMON ; 
00156 u8g_pb_t u8g_dev_uc1701_mini12864_2x_pb = { {16, HEIGHT, 0, 0, 0},  WIDTH, u8g_dev_uc1701_mini12864_2x_buf}; 
00157 u8g_dev_t u8g_dev_uc1701_mini12864_2x_sw_spi = { u8g_dev_uc1701_mini12864_2x_fn, &u8g_dev_uc1701_mini12864_2x_pb, U8G_COM_SW_SPI };
00158 u8g_dev_t u8g_dev_uc1701_mini12864_2x_hw_spi = { u8g_dev_uc1701_mini12864_2x_fn, &u8g_dev_uc1701_mini12864_2x_pb, U8G_COM_HW_SPI };
00159