u8g2-copy/csrc/u8x8_cad.c

/*
  
  u8x8_cad.c
  
  "command arg data" interface to the graphics controller

  Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)

  Copyright (c) 2016, olikraus@gmail.com
  All rights reserved.

  Redistribution and use in source and binary forms, with or without modification, 
  are permitted provided that the following conditions are met:

  * Redistributions of source code must retain the above copyright notice, this list 
    of conditions and the following disclaimer.
    
  * 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.

  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 
  CONTRIBUTORS "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 OR 
  CONTRIBUTORS 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.  


  The following sequence must be used for any data, which is set to the display:
  
  
  uint8_t u8x8_cad_StartTransfer(u8x8_t *u8x8)

  any of the following calls
    uint8_t u8x8_cad_SendCmd(u8x8_t *u8x8, uint8_t cmd)
    uint8_t u8x8_cad_SendArg(u8x8_t *u8x8, uint8_t arg)
    uint8_t u8x8_cad_SendData(u8x8_t *u8x8, uint8_t cnt, uint8_t *data)
  
  uint8_t u8x8_cad_EndTransfer(u8x8_t *u8x8)



*/
/*
uint8_t u8x8_cad_template(u8x8_t *u8x8, uint8_t msg, uint16_t arg_int, void *arg_ptr)
{
  uint8_t i;
  
  switch(msg)
  {
    case U8X8_MSG_CAD_SEND_CMD:
      u8x8_mcd_byte_SetDC(mcd->next, 1);
      u8x8_mcd_byte_Send(mcd->next, arg_int);
      break;
    case U8X8_MSG_CAD_SEND_ARG:
      u8x8_mcd_byte_SetDC(mcd->next, 1);
      u8x8_mcd_byte_Send(mcd->next, arg_int);
      break;
    case U8X8_MSG_CAD_SEND_DATA:
      u8x8_mcd_byte_SetDC(mcd->next, 0);
      for( i = 0; i < 8; i++ )
	u8x8_mcd_byte_Send(mcd->next, ((uint8_t *)arg_ptr)[i]);
      break;
    case U8X8_MSG_CAD_RESET:
      return mcd->next->cb(mcd->next, msg, arg_int, arg_ptr);
    case U8X8_MSG_CAD_START_TRANSFER:
      return mcd->next->cb(mcd->next, msg, arg_int, arg_ptr);
    case U8X8_MSG_CAD_END_TRANSFER:
      return mcd->next->cb(mcd->next, msg, arg_int, arg_ptr);
    case U8X8_MSG_CAD_SET_I2C_ADR:
      return mcd->next->cb(mcd->next, msg, arg_int, arg_ptr);
    case U8X8_MSG_CAD_SET_DEVICE:
      return mcd->next->cb(mcd->next, msg, arg_int, arg_ptr);
    default:
      break;
  }
  return 1;
}

*/

#include "u8x8.h"

uint8_t u8x8_cad_SendCmd(u8x8_t *u8x8, uint8_t cmd)
{
  return u8x8->cad_cb(u8x8, U8X8_MSG_CAD_SEND_CMD, cmd, NULL);
}

uint8_t u8x8_cad_SendArg(u8x8_t *u8x8, uint8_t arg)
{
  return u8x8->cad_cb(u8x8, U8X8_MSG_CAD_SEND_ARG, arg, NULL);
}

uint8_t u8x8_cad_SendData(u8x8_t *u8x8, uint8_t cnt, uint8_t *data)
{
  return u8x8->cad_cb(u8x8, U8X8_MSG_CAD_SEND_DATA, cnt, data);
}

uint8_t u8x8_cad_StartTransfer(u8x8_t *u8x8)
{
  return u8x8->cad_cb(u8x8, U8X8_MSG_CAD_START_TRANSFER, 0, NULL);
}

uint8_t u8x8_cad_EndTransfer(u8x8_t *u8x8)
{
  return u8x8->cad_cb(u8x8, U8X8_MSG_CAD_END_TRANSFER, 0, NULL);
}

/*
  21 c		send command c
  22 a		send arg a
  23 d		send data d
  24			CS on
  25			CS off
  254 milli	delay by milliseconds
  255		end of sequence
*/

void u8x8_cad_SendSequence(u8x8_t *u8x8, uint8_t const *data)
{
  uint8_t cmd;
  uint8_t v;

  for(;;)
  {
    cmd = *data;
    data++;
    switch( cmd )
    {
      case U8X8_MSG_CAD_SEND_CMD:
      case U8X8_MSG_CAD_SEND_ARG:
	  v = *data;
	  u8x8->cad_cb(u8x8, cmd, v, NULL);
	  data++;
	  break;
      case U8X8_MSG_CAD_SEND_DATA:
	  v = *data;
	  u8x8_cad_SendData(u8x8, 1, &v);
	  data++;
	  break;
      case U8X8_MSG_CAD_START_TRANSFER:
      case U8X8_MSG_CAD_END_TRANSFER:
	  u8x8->cad_cb(u8x8, cmd, 0, NULL);
	  break;
      case 0x0fe:
	  v = *data;
	  u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_MILLI, v);	    
	  data++;
	  break;
      default:
	return;
    }
  }
}


/*
  convert to bytes by using 
    dc = 1 for commands and args and
    dc = 0 for data
*/
uint8_t u8x8_cad_110(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
{
  switch(msg)
  {
    case U8X8_MSG_CAD_SEND_CMD:
      u8x8_byte_SetDC(u8x8, 1);
      u8x8_byte_SendByte(u8x8, arg_int);
      break;
    case U8X8_MSG_CAD_SEND_ARG:
      u8x8_byte_SetDC(u8x8, 1);
      u8x8_byte_SendByte(u8x8, arg_int);
      break;
    case U8X8_MSG_CAD_SEND_DATA:
      u8x8_byte_SetDC(u8x8, 0);
      //u8x8_byte_SendBytes(u8x8, arg_int, arg_ptr);
      //break;
      /* fall through */
    case U8X8_MSG_CAD_INIT:
    case U8X8_MSG_CAD_START_TRANSFER:
    case U8X8_MSG_CAD_END_TRANSFER:
    case U8X8_MSG_CAD_SET_I2C_ADR:
    case U8X8_MSG_CAD_SET_DEVICE:
      return u8x8->byte_cb(u8x8, msg, arg_int, arg_ptr);
    default:
      return 0;
  }
  return 1;
}

/*
  convert to bytes by using 
    dc = 0 for commands and args and
    dc = 1 for data
*/
uint8_t u8x8_cad_001(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
{
  switch(msg)
  {
    case U8X8_MSG_CAD_SEND_CMD:
      u8x8_byte_SetDC(u8x8, 0);
      u8x8_byte_SendByte(u8x8, arg_int);
      break;
    case U8X8_MSG_CAD_SEND_ARG:
      u8x8_byte_SetDC(u8x8, 0);
      u8x8_byte_SendByte(u8x8, arg_int);
      break;
    case U8X8_MSG_CAD_SEND_DATA:
      u8x8_byte_SetDC(u8x8, 1);
      //u8x8_byte_SendBytes(u8x8, arg_int, arg_ptr);
      //break;
      /* fall through */
    case U8X8_MSG_CAD_INIT:
    case U8X8_MSG_CAD_START_TRANSFER:
    case U8X8_MSG_CAD_END_TRANSFER:
    case U8X8_MSG_CAD_SET_I2C_ADR:
    case U8X8_MSG_CAD_SET_DEVICE:
      return u8x8->byte_cb(u8x8, msg, arg_int, arg_ptr);
    default:
      return 0;
  }
  return 1;
}