u8g_dev_flipdisc_2x7.c

00001 /*
00002 
00003   u8g_dev_flipdisc.c
00004   
00005   1-Bit (BW) Driver for flip disc matrix
00006   2x 7 pixel height
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 #include "u8g.h"
00040 
00041 #define WIDTH 28
00042 #define HEIGHT 14
00043 #define PAGE_HEIGHT 14
00044 
00045 /*
00046   Write data to the flip disc matrix.
00047   This procedure must be implemented by the user.
00048   Arguments:
00049     id: Id for the matrix. Currently always 0.
00050     page:   A page has a height of 14 pixel. For a matrix with HEIGHT == 14 this will be always 0
00051     width:  The width of the flip disc matrix. Always equal to WIDTH
00052     row1:   first data line (7 pixel per byte)
00053     row2:   first data line (7 pixel per byte)
00054 */
00055 void writeFlipDiscMatrix(uint8_t id, uint8_t page, uint8_t width, uint8_t *row1, uint8_t *row2);
00056 
00057 
00058 
00059 void (*u8g_write_flip_disc_matrix)(uint8_t id, uint8_t page, uint8_t width, uint8_t *row1, uint8_t *row2);
00060 
00061 void u8g_SetFlipDiscCallback(u8g_t *u8g, void (*cb)(uint8_t id, uint8_t page, uint8_t width, uint8_t *row1, uint8_t *row2))
00062 {
00063   u8g_write_flip_disc_matrix = cb;
00064 }
00065 
00066 uint8_t u8g_dev_flipdisc_2x7_bw_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg)
00067 {
00068   switch(msg)
00069   {
00070     case U8G_DEV_MSG_INIT:
00071       break;
00072     case U8G_DEV_MSG_STOP:
00073       break;
00074     case U8G_DEV_MSG_PAGE_NEXT:
00075       {
00076         u8g_pb_t *pb = (u8g_pb_t *)(dev->dev_mem);
00077         
00078     /* current page: pb->p.page */
00079     /* ptr to the buffer: pb->buf */
00080     
00081     (*u8g_write_flip_disc_matrix)(0, pb->p.page, WIDTH, pb->buf, (uint8_t *)(pb->buf)+WIDTH);
00082       }
00083       break;
00084     case U8G_DEV_MSG_CONTRAST:
00085       return 1;
00086   }
00087   return u8g_dev_pb14v1_base_fn(u8g, dev, msg, arg);
00088 }
00089 
00090 uint8_t u8g_dev_flipdisc_2x7_bw_buf[WIDTH*2] U8G_NOCOMMON ; 
00091 u8g_pb_t u8g_dev_flipdisc_2x7_bw_pb = { {16, HEIGHT, 0, 0, 0},  WIDTH, u8g_dev_flipdisc_2x7_bw_buf}; 
00092 u8g_dev_t u8g_dev_flipdisc_2x7 = { u8g_dev_flipdisc_2x7_bw_fn, &u8g_dev_flipdisc_2x7_bw_pb, u8g_com_null_fn };
00093