u8g_dev_sbn1661_122x32.c

00001 /*
00002 
00003   u8g_dev_sbn1661_122x32.c
00004   
00005   WG12232 display with 2xSBN1661 / SED1520 controller (122x32 display)
00006   At the moment only available in the Arduino Environment
00007 
00008   Universal 8bit Graphics Library
00009   
00010   Copyright (c) 2011, olikraus@gmail.com
00011   All rights reserved.
00012 
00013   Redistribution and use in source and binary forms, with or without modification, 
00014   are permitted provided that the following conditions are met:
00015 
00016   * Redistributions of source code must retain the above copyright notice, this list 
00017     of conditions and the following disclaimer.
00018     
00019   * Redistributions in binary form must reproduce the above copyright notice, this 
00020     list of conditions and the following disclaimer in the documentation and/or other 
00021     materials provided with the distribution.
00022 
00023   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
00024   CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
00025   INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 
00026   MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
00027   DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 
00028   CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
00029   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 
00030   NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 
00031   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 
00032   CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 
00033   STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
00034   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 
00035   ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.  
00036   
00037   
00038 */
00039 
00040 #include "u8g.h"
00041 
00042 #define WIDTH 122
00043 #define HEIGHT 32
00044 #define PAGE_HEIGHT 8
00045 
00046 
00047 static const uint8_t u8g_dev_sbn1661_122x32_init_seq[] PROGMEM = {
00048   U8G_ESC_CS(0),             /* disable chip */
00049   U8G_ESC_ADR(0),           /* instruction mode */
00050   U8G_ESC_RST(15),           /* do reset low pulse with (15*16)+2 milliseconds */
00051   U8G_ESC_CS(1),             /* enable chip 1 */
00052   0x0af,                /* display on */
00053   0x0c0,                /* display start at line 0 */
00054   0x0a0,                /* a0: ADC forward, a1: ADC reverse */
00055   0x0a9,                /* a8: 1/16, a9: 1/32 duty */
00056   U8G_ESC_CS(2),             /* enable chip 2 */
00057   0x0af,                /* display on */
00058   0x0c0,                /* display start at line 0 */
00059   0x0a0,                /* a0: ADC forward, a1: ADC reverse */
00060   0x0a9,                /* a8: 1/16, a9: 1/32 duty */
00061   
00062   U8G_ESC_CS(0),             /* disable chip */
00063   
00064   
00065   U8G_ESC_END                /* end of sequence */
00066 };
00067 
00068 uint8_t u8g_dev_sbn1661_122x32_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
00069 {
00070   switch(msg)
00071   {
00072     case U8G_DEV_MSG_INIT:
00073       u8g_InitCom(u8g, dev, U8G_SPI_CLK_CYCLE_NONE);
00074       u8g_WriteEscSeqP(u8g, dev, u8g_dev_sbn1661_122x32_init_seq);
00075       break;
00076     case U8G_DEV_MSG_STOP:
00077       break;
00078     case U8G_DEV_MSG_PAGE_NEXT:
00079       {
00080         u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem);
00081     
00082         u8g_SetAddress(u8g, dev, 0);           /* command mode */
00083         u8g_SetChipSelect(u8g, dev, 1);
00084         u8g_WriteByte(u8g, dev, 0x0b8 | pb->p.page); /* select current page (SBN1661/SED1520) */
00085         u8g_WriteByte(u8g, dev, 0x000 ); /* set X address */
00086         u8g_SetAddress(u8g, dev, 1);           /* data mode */
00087         u8g_WriteSequence(u8g, dev, WIDTH/2, pb->buf);
00088     
00089         u8g_SetAddress(u8g, dev, 0);           /* command mode */
00090         u8g_SetChipSelect(u8g, dev, 2);
00091         u8g_WriteByte(u8g, dev, 0x0b8 | pb->p.page); /* select current page (SBN1661/SED1520) */
00092         u8g_WriteByte(u8g, dev, 0x000 ); /* set X address */
00093         u8g_SetAddress(u8g, dev, 1);           /* data mode */
00094         u8g_WriteSequence(u8g, dev, WIDTH/2, WIDTH/2+(uint8_t *)pb->buf);
00095     
00096         u8g_SetChipSelect(u8g, dev, 0);
00097     
00098       }
00099       break;
00100     case U8G_DEV_MSG_CONTRAST:
00101       break;
00102   }
00103   return u8g_dev_pb8v1_base_fn(u8g, dev, msg, arg);
00104 }
00105 
00106 /* u8g_com_arduino_sw_spi_fn does not work, too fast??? */
00107 U8G_PB_DEV(u8g_dev_sbn1661_122x32 , WIDTH, HEIGHT, PAGE_HEIGHT, u8g_dev_sbn1661_122x32_fn, u8g_com_arduino_no_en_parallel_fn);
00108