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389ff92cc1
* Makefile, Scripts: new linter * About: remove ID from IC * Firmware: remove double define for DIVC/DIVR * Scripts: check folder names too. Docker: replace syntax check with make lint. * Reformat Sources and Migrate to new file naming convention * Docker: symlink clang-format-12 to clang-format * Add coding style guide
684 lines
22 KiB
C
684 lines
22 KiB
C
/*
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u8x8_cad.c
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"command arg data" interface to the graphics controller
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Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
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Copyright (c) 2016, olikraus@gmail.com
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All rights reserved.
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Redistribution and use in source and binary forms, with or without modification,
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are permitted provided that the following conditions are met:
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* Redistributions of source code must retain the above copyright notice, this list
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of conditions and the following disclaimer.
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* Redistributions in binary form must reproduce the above copyright notice, this
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list of conditions and the following disclaimer in the documentation and/or other
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materials provided with the distribution.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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The following sequence must be used for any data, which is set to the display:
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uint8_t u8x8_cad_StartTransfer(u8x8_t *u8x8)
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any of the following calls
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uint8_t u8x8_cad_SendCmd(u8x8_t *u8x8, uint8_t cmd)
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uint8_t u8x8_cad_SendArg(u8x8_t *u8x8, uint8_t arg)
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uint8_t u8x8_cad_SendData(u8x8_t *u8x8, uint8_t cnt, uint8_t *data)
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uint8_t u8x8_cad_EndTransfer(u8x8_t *u8x8)
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*/
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/*
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uint8_t u8x8_cad_template(u8x8_t *u8x8, uint8_t msg, uint16_t arg_int, void *arg_ptr)
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{
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uint8_t i;
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switch(msg)
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{
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case U8X8_MSG_CAD_SEND_CMD:
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u8x8_mcd_byte_SetDC(mcd->next, 1);
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u8x8_mcd_byte_Send(mcd->next, arg_int);
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break;
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case U8X8_MSG_CAD_SEND_ARG:
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u8x8_mcd_byte_SetDC(mcd->next, 1);
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u8x8_mcd_byte_Send(mcd->next, arg_int);
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break;
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case U8X8_MSG_CAD_SEND_DATA:
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u8x8_mcd_byte_SetDC(mcd->next, 0);
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for( i = 0; i < 8; i++ )
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u8x8_mcd_byte_Send(mcd->next, ((uint8_t *)arg_ptr)[i]);
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break;
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case U8X8_MSG_CAD_RESET:
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return mcd->next->cb(mcd->next, msg, arg_int, arg_ptr);
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case U8X8_MSG_CAD_START_TRANSFER:
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return mcd->next->cb(mcd->next, msg, arg_int, arg_ptr);
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case U8X8_MSG_CAD_END_TRANSFER:
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return mcd->next->cb(mcd->next, msg, arg_int, arg_ptr);
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default:
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break;
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}
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return 1;
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}
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*/
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#include "u8x8.h"
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uint8_t u8x8_cad_SendCmd(u8x8_t* u8x8, uint8_t cmd) {
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return u8x8->cad_cb(u8x8, U8X8_MSG_CAD_SEND_CMD, cmd, NULL);
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}
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uint8_t u8x8_cad_SendArg(u8x8_t* u8x8, uint8_t arg) {
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return u8x8->cad_cb(u8x8, U8X8_MSG_CAD_SEND_ARG, arg, NULL);
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}
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uint8_t u8x8_cad_SendMultipleArg(u8x8_t* u8x8, uint8_t cnt, uint8_t arg) {
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while(cnt > 0) {
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u8x8->cad_cb(u8x8, U8X8_MSG_CAD_SEND_ARG, arg, NULL);
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cnt--;
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}
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return 1;
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}
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uint8_t u8x8_cad_SendData(u8x8_t* u8x8, uint8_t cnt, uint8_t* data) {
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return u8x8->cad_cb(u8x8, U8X8_MSG_CAD_SEND_DATA, cnt, data);
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}
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uint8_t u8x8_cad_StartTransfer(u8x8_t* u8x8) {
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return u8x8->cad_cb(u8x8, U8X8_MSG_CAD_START_TRANSFER, 0, NULL);
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}
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uint8_t u8x8_cad_EndTransfer(u8x8_t* u8x8) {
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return u8x8->cad_cb(u8x8, U8X8_MSG_CAD_END_TRANSFER, 0, NULL);
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}
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void u8x8_cad_vsendf(u8x8_t* u8x8, const char* fmt, va_list va) {
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uint8_t d;
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u8x8_cad_StartTransfer(u8x8);
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while(*fmt != '\0') {
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d = (uint8_t)va_arg(va, int);
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switch(*fmt) {
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case 'a':
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u8x8_cad_SendArg(u8x8, d);
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break;
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case 'c':
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u8x8_cad_SendCmd(u8x8, d);
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break;
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case 'd':
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u8x8_cad_SendData(u8x8, 1, &d);
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break;
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}
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fmt++;
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}
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u8x8_cad_EndTransfer(u8x8);
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}
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void u8x8_SendF(u8x8_t* u8x8, const char* fmt, ...) {
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va_list va;
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va_start(va, fmt);
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u8x8_cad_vsendf(u8x8, fmt, va);
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va_end(va);
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}
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/*
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21 c send command c
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22 a send arg a
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23 d send data d
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24 CS on
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25 CS off
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254 milli delay by milliseconds
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255 end of sequence
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*/
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void u8x8_cad_SendSequence(u8x8_t* u8x8, uint8_t const* data) {
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uint8_t cmd;
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uint8_t v;
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for(;;) {
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cmd = *data;
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data++;
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switch(cmd) {
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case U8X8_MSG_CAD_SEND_CMD:
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case U8X8_MSG_CAD_SEND_ARG:
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v = *data;
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u8x8->cad_cb(u8x8, cmd, v, NULL);
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data++;
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break;
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case U8X8_MSG_CAD_SEND_DATA:
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v = *data;
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u8x8_cad_SendData(u8x8, 1, &v);
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data++;
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break;
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case U8X8_MSG_CAD_START_TRANSFER:
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case U8X8_MSG_CAD_END_TRANSFER:
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u8x8->cad_cb(u8x8, cmd, 0, NULL);
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break;
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case 0x0fe:
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v = *data;
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u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_MILLI, v);
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data++;
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break;
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default:
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return;
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}
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}
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}
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uint8_t u8x8_cad_empty(u8x8_t* u8x8, uint8_t msg, uint8_t arg_int, void* arg_ptr) {
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switch(msg) {
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case U8X8_MSG_CAD_SEND_CMD:
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u8x8_byte_SendByte(u8x8, arg_int);
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break;
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case U8X8_MSG_CAD_SEND_ARG:
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u8x8_byte_SendByte(u8x8, arg_int);
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break;
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case U8X8_MSG_CAD_SEND_DATA:
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case U8X8_MSG_CAD_INIT:
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case U8X8_MSG_CAD_START_TRANSFER:
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case U8X8_MSG_CAD_END_TRANSFER:
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return u8x8->byte_cb(u8x8, msg, arg_int, arg_ptr);
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default:
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return 0;
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}
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return 1;
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}
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/*
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convert to bytes by using
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dc = 1 for commands and args and
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dc = 0 for data
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*/
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uint8_t u8x8_cad_110(u8x8_t* u8x8, uint8_t msg, uint8_t arg_int, void* arg_ptr) {
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switch(msg) {
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case U8X8_MSG_CAD_SEND_CMD:
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u8x8_byte_SetDC(u8x8, 1);
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u8x8_byte_SendByte(u8x8, arg_int);
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break;
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case U8X8_MSG_CAD_SEND_ARG:
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u8x8_byte_SetDC(u8x8, 1);
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u8x8_byte_SendByte(u8x8, arg_int);
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break;
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case U8X8_MSG_CAD_SEND_DATA:
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u8x8_byte_SetDC(u8x8, 0);
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//u8x8_byte_SendBytes(u8x8, arg_int, arg_ptr);
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//break;
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/* fall through */
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case U8X8_MSG_CAD_INIT:
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case U8X8_MSG_CAD_START_TRANSFER:
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case U8X8_MSG_CAD_END_TRANSFER:
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return u8x8->byte_cb(u8x8, msg, arg_int, arg_ptr);
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default:
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return 0;
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}
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return 1;
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}
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/*
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convert to bytes by using
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dc = 1 for commands and args and
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dc = 0 for data
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t6963
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*/
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uint8_t u8x8_cad_100(u8x8_t* u8x8, uint8_t msg, uint8_t arg_int, void* arg_ptr) {
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switch(msg) {
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case U8X8_MSG_CAD_SEND_CMD:
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u8x8_byte_SetDC(u8x8, 1);
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u8x8_byte_SendByte(u8x8, arg_int);
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break;
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case U8X8_MSG_CAD_SEND_ARG:
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u8x8_byte_SetDC(u8x8, 0);
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u8x8_byte_SendByte(u8x8, arg_int);
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break;
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case U8X8_MSG_CAD_SEND_DATA:
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u8x8_byte_SetDC(u8x8, 0);
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//u8x8_byte_SendBytes(u8x8, arg_int, arg_ptr);
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//break;
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/* fall through */
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case U8X8_MSG_CAD_INIT:
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case U8X8_MSG_CAD_START_TRANSFER:
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case U8X8_MSG_CAD_END_TRANSFER:
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return u8x8->byte_cb(u8x8, msg, arg_int, arg_ptr);
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default:
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return 0;
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}
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return 1;
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}
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/*
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convert to bytes by using
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dc = 0 for commands and args and
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dc = 1 for data
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*/
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uint8_t u8x8_cad_001(u8x8_t* u8x8, uint8_t msg, uint8_t arg_int, void* arg_ptr) {
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switch(msg) {
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case U8X8_MSG_CAD_SEND_CMD:
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u8x8_byte_SetDC(u8x8, 0);
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u8x8_byte_SendByte(u8x8, arg_int);
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break;
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case U8X8_MSG_CAD_SEND_ARG:
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u8x8_byte_SetDC(u8x8, 0);
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u8x8_byte_SendByte(u8x8, arg_int);
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break;
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case U8X8_MSG_CAD_SEND_DATA:
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u8x8_byte_SetDC(u8x8, 1);
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//u8x8_byte_SendBytes(u8x8, arg_int, arg_ptr);
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//break;
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/* fall through */
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case U8X8_MSG_CAD_INIT:
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case U8X8_MSG_CAD_START_TRANSFER:
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case U8X8_MSG_CAD_END_TRANSFER:
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return u8x8->byte_cb(u8x8, msg, arg_int, arg_ptr);
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default:
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return 0;
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}
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return 1;
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}
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/*
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convert to bytes by using
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dc = 0 for commands
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dc = 1 for args and data
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*/
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uint8_t u8x8_cad_011(u8x8_t* u8x8, uint8_t msg, uint8_t arg_int, void* arg_ptr) {
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switch(msg) {
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case U8X8_MSG_CAD_SEND_CMD:
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u8x8_byte_SetDC(u8x8, 0);
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u8x8_byte_SendByte(u8x8, arg_int);
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break;
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case U8X8_MSG_CAD_SEND_ARG:
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u8x8_byte_SetDC(u8x8, 1);
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u8x8_byte_SendByte(u8x8, arg_int);
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break;
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case U8X8_MSG_CAD_SEND_DATA:
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u8x8_byte_SetDC(u8x8, 1);
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//u8x8_byte_SendBytes(u8x8, arg_int, arg_ptr);
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//break;
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/* fall through */
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case U8X8_MSG_CAD_INIT:
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case U8X8_MSG_CAD_START_TRANSFER:
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case U8X8_MSG_CAD_END_TRANSFER:
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return u8x8->byte_cb(u8x8, msg, arg_int, arg_ptr);
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default:
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return 0;
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}
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return 1;
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}
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/* cad procedure for the ST7920 in SPI mode */
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/* u8x8_byte_SetDC is not used */
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uint8_t u8x8_cad_st7920_spi(u8x8_t* u8x8, uint8_t msg, uint8_t arg_int, void* arg_ptr) {
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uint8_t* data;
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uint8_t b;
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uint8_t i;
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static uint8_t buf[16];
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uint8_t* ptr;
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switch(msg) {
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case U8X8_MSG_CAD_SEND_CMD:
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u8x8_byte_SendByte(u8x8, 0x0f8);
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u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, 1);
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u8x8_byte_SendByte(u8x8, arg_int & 0x0f0);
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u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, 1);
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u8x8_byte_SendByte(u8x8, arg_int << 4);
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u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, 1);
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break;
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case U8X8_MSG_CAD_SEND_ARG:
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u8x8_byte_SendByte(u8x8, 0x0f8);
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u8x8_byte_SendByte(u8x8, arg_int & 0x0f0);
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u8x8_byte_SendByte(u8x8, arg_int << 4);
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break;
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case U8X8_MSG_CAD_SEND_DATA:
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u8x8_byte_SendByte(u8x8, 0x0fa);
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u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, 1);
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/* this loop should be optimized: multiple bytes should be sent */
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/* u8x8_byte_SendBytes(u8x8, arg_int, arg_ptr); */
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data = (uint8_t*)arg_ptr;
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/* the following loop increases speed by 20% */
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while(arg_int >= 8) {
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i = 8;
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ptr = buf;
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do {
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b = *data++;
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*ptr++ = b & 0x0f0;
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b <<= 4;
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*ptr++ = b;
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i--;
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} while(i > 0);
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arg_int -= 8;
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u8x8_byte_SendBytes(u8x8, 16, buf);
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}
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while(arg_int > 0) {
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b = *data;
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u8x8_byte_SendByte(u8x8, b & 0x0f0);
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u8x8_byte_SendByte(u8x8, b << 4);
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data++;
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arg_int--;
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}
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u8x8_gpio_Delay(u8x8, U8X8_MSG_DELAY_NANO, 1);
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break;
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case U8X8_MSG_CAD_INIT:
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case U8X8_MSG_CAD_START_TRANSFER:
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case U8X8_MSG_CAD_END_TRANSFER:
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return u8x8->byte_cb(u8x8, msg, arg_int, arg_ptr);
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default:
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return 0;
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}
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return 1;
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}
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/* cad procedure for the SSD13xx family in I2C mode */
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/* this procedure is also used by the ST7588 */
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/* u8x8_byte_SetDC is not used */
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/* U8X8_MSG_BYTE_START_TRANSFER starts i2c transfer, U8X8_MSG_BYTE_END_TRANSFER stops transfer */
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/* After transfer start, a full byte indicates command or data mode */
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static void u8x8_i2c_data_transfer(u8x8_t* u8x8, uint8_t arg_int, void* arg_ptr) U8X8_NOINLINE;
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static void u8x8_i2c_data_transfer(u8x8_t* u8x8, uint8_t arg_int, void* arg_ptr) {
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u8x8_byte_StartTransfer(u8x8);
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u8x8_byte_SendByte(u8x8, 0x040);
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u8x8->byte_cb(u8x8, U8X8_MSG_CAD_SEND_DATA, arg_int, arg_ptr);
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u8x8_byte_EndTransfer(u8x8);
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}
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/* classic version: will put a start/stop condition around each command and arg */
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uint8_t u8x8_cad_ssd13xx_i2c(u8x8_t* u8x8, uint8_t msg, uint8_t arg_int, void* arg_ptr) {
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uint8_t* p;
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switch(msg) {
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case U8X8_MSG_CAD_SEND_CMD:
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case U8X8_MSG_CAD_SEND_ARG:
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/* 7 Nov 2016: Can this be improved? */
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//u8x8_byte_SetDC(u8x8, 0);
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u8x8_byte_StartTransfer(u8x8);
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//u8x8_byte_SendByte(u8x8, u8x8_GetI2CAddress(u8x8));
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u8x8_byte_SendByte(u8x8, 0x000);
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u8x8_byte_SendByte(u8x8, arg_int);
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u8x8_byte_EndTransfer(u8x8);
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break;
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case U8X8_MSG_CAD_SEND_DATA:
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//u8x8_byte_SetDC(u8x8, 1);
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/* the FeatherWing OLED with the 32u4 transfer of long byte */
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/* streams was not possible. This is broken down to */
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/* smaller streams, 32 seems to be the limit... */
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/* I guess this is related to the size of the Wire buffers in Arduino */
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/* Unfortunately, this can not be handled in the byte level drivers, */
|
|
/* so this is done here. Even further, only 24 bytes will be sent, */
|
|
/* because there will be another byte (DC) required during the transfer */
|
|
p = arg_ptr;
|
|
while(arg_int > 24) {
|
|
u8x8_i2c_data_transfer(u8x8, 24, p);
|
|
arg_int -= 24;
|
|
p += 24;
|
|
}
|
|
u8x8_i2c_data_transfer(u8x8, arg_int, p);
|
|
break;
|
|
case U8X8_MSG_CAD_INIT:
|
|
/* apply default i2c adr if required so that the start transfer msg can use this */
|
|
if(u8x8->i2c_address == 255) u8x8->i2c_address = 0x078;
|
|
return u8x8->byte_cb(u8x8, msg, arg_int, arg_ptr);
|
|
case U8X8_MSG_CAD_START_TRANSFER:
|
|
case U8X8_MSG_CAD_END_TRANSFER:
|
|
/* cad transfer commands are ignored */
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* fast version with reduced data start/stops, issue 735 */
|
|
uint8_t u8x8_cad_ssd13xx_fast_i2c(u8x8_t* u8x8, uint8_t msg, uint8_t arg_int, void* arg_ptr) {
|
|
static uint8_t in_transfer = 0;
|
|
uint8_t* p;
|
|
switch(msg) {
|
|
case U8X8_MSG_CAD_SEND_CMD:
|
|
/* improved version, takeover from ld7032 */
|
|
/* assumes, that the args of a command is not longer than 31 bytes */
|
|
/* speed improvement is about 4% compared to the classic version */
|
|
if(in_transfer != 0) u8x8_byte_EndTransfer(u8x8);
|
|
|
|
u8x8_byte_StartTransfer(u8x8);
|
|
u8x8_byte_SendByte(u8x8, 0x000); /* cmd byte for ssd13xx controller */
|
|
u8x8_byte_SendByte(u8x8, arg_int);
|
|
in_transfer = 1;
|
|
/* lightning version: can replace the improved version from above */
|
|
/* the drawback of the lightning version is this: The complete init sequence */
|
|
/* must fit into the 32 byte Arduino Wire buffer, which might not always be the case */
|
|
/* speed improvement is about 6% compared to the classic version */
|
|
// if ( in_transfer == 0 )
|
|
// {
|
|
// u8x8_byte_StartTransfer(u8x8);
|
|
// u8x8_byte_SendByte(u8x8, 0x000); /* cmd byte for ssd13xx controller */
|
|
// in_transfer = 1;
|
|
// }
|
|
//u8x8_byte_SendByte(u8x8, arg_int);
|
|
break;
|
|
case U8X8_MSG_CAD_SEND_ARG:
|
|
u8x8_byte_SendByte(u8x8, arg_int);
|
|
break;
|
|
case U8X8_MSG_CAD_SEND_DATA:
|
|
if(in_transfer != 0) u8x8_byte_EndTransfer(u8x8);
|
|
|
|
/* the FeatherWing OLED with the 32u4 transfer of long byte */
|
|
/* streams was not possible. This is broken down to */
|
|
/* smaller streams, 32 seems to be the limit... */
|
|
/* I guess this is related to the size of the Wire buffers in Arduino */
|
|
/* Unfortunately, this can not be handled in the byte level drivers, */
|
|
/* so this is done here. Even further, only 24 bytes will be sent, */
|
|
/* because there will be another byte (DC) required during the transfer */
|
|
p = arg_ptr;
|
|
while(arg_int > 24) {
|
|
u8x8_i2c_data_transfer(u8x8, 24, p);
|
|
arg_int -= 24;
|
|
p += 24;
|
|
}
|
|
u8x8_i2c_data_transfer(u8x8, arg_int, p);
|
|
in_transfer = 0;
|
|
break;
|
|
case U8X8_MSG_CAD_INIT:
|
|
/* apply default i2c adr if required so that the start transfer msg can use this */
|
|
if(u8x8->i2c_address == 255) u8x8->i2c_address = 0x078;
|
|
return u8x8->byte_cb(u8x8, msg, arg_int, arg_ptr);
|
|
case U8X8_MSG_CAD_START_TRANSFER:
|
|
in_transfer = 0;
|
|
break;
|
|
case U8X8_MSG_CAD_END_TRANSFER:
|
|
if(in_transfer != 0) u8x8_byte_EndTransfer(u8x8);
|
|
in_transfer = 0;
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* the st75256 i2c driver is a copy of the ssd13xx driver, but with arg=1 */
|
|
/* modified from cad001 (ssd13xx) to cad011 */
|
|
uint8_t u8x8_cad_st75256_i2c(u8x8_t* u8x8, uint8_t msg, uint8_t arg_int, void* arg_ptr) {
|
|
uint8_t* p;
|
|
switch(msg) {
|
|
case U8X8_MSG_CAD_SEND_CMD:
|
|
u8x8_byte_StartTransfer(u8x8);
|
|
u8x8_byte_SendByte(u8x8, 0x000);
|
|
u8x8_byte_SendByte(u8x8, arg_int);
|
|
u8x8_byte_EndTransfer(u8x8);
|
|
break;
|
|
case U8X8_MSG_CAD_SEND_ARG:
|
|
u8x8_byte_StartTransfer(u8x8);
|
|
u8x8_byte_SendByte(u8x8, 0x040);
|
|
u8x8_byte_SendByte(u8x8, arg_int);
|
|
u8x8_byte_EndTransfer(u8x8);
|
|
break;
|
|
case U8X8_MSG_CAD_SEND_DATA:
|
|
/* see ssd13xx driver */
|
|
p = arg_ptr;
|
|
while(arg_int > 24) {
|
|
u8x8_i2c_data_transfer(u8x8, 24, p);
|
|
arg_int -= 24;
|
|
p += 24;
|
|
}
|
|
u8x8_i2c_data_transfer(u8x8, arg_int, p);
|
|
break;
|
|
case U8X8_MSG_CAD_INIT:
|
|
/* apply default i2c adr if required so that the start transfer msg can use this */
|
|
if(u8x8->i2c_address == 255) u8x8->i2c_address = 0x078; /* ST75256, often this is 0x07e */
|
|
return u8x8->byte_cb(u8x8, msg, arg_int, arg_ptr);
|
|
case U8X8_MSG_CAD_START_TRANSFER:
|
|
case U8X8_MSG_CAD_END_TRANSFER:
|
|
/* cad transfer commands are ignored */
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* cad i2c procedure for the ld7032 controller */
|
|
/* Issue https://github.com/olikraus/u8g2/issues/865 mentiones, that I2C does not work */
|
|
/* Workaround is to remove the while loop (or increase the value in the condition) */
|
|
uint8_t u8x8_cad_ld7032_i2c(u8x8_t* u8x8, uint8_t msg, uint8_t arg_int, void* arg_ptr) {
|
|
static uint8_t in_transfer = 0;
|
|
uint8_t* p;
|
|
switch(msg) {
|
|
case U8X8_MSG_CAD_SEND_CMD:
|
|
if(in_transfer != 0) u8x8_byte_EndTransfer(u8x8);
|
|
u8x8_byte_StartTransfer(u8x8);
|
|
u8x8_byte_SendByte(u8x8, arg_int);
|
|
in_transfer = 1;
|
|
break;
|
|
case U8X8_MSG_CAD_SEND_ARG:
|
|
u8x8_byte_SendByte(u8x8, arg_int);
|
|
break;
|
|
case U8X8_MSG_CAD_SEND_DATA:
|
|
//u8x8_byte_SetDC(u8x8, 1);
|
|
|
|
/* the FeatherWing OLED with the 32u4 transfer of long byte */
|
|
/* streams was not possible. This is broken down to */
|
|
/* smaller streams, 32 seems to be the limit... */
|
|
/* I guess this is related to the size of the Wire buffers in Arduino */
|
|
/* Unfortunately, this can not be handled in the byte level drivers, */
|
|
/* so this is done here. Even further, only 24 bytes will be sent, */
|
|
/* because there will be another byte (DC) required during the transfer */
|
|
p = arg_ptr;
|
|
while(arg_int > 24) {
|
|
u8x8->byte_cb(u8x8, U8X8_MSG_CAD_SEND_DATA, 24, p);
|
|
arg_int -= 24;
|
|
p += 24;
|
|
u8x8_byte_EndTransfer(u8x8);
|
|
u8x8_byte_StartTransfer(u8x8);
|
|
u8x8_byte_SendByte(u8x8, 0x08); /* data write for LD7032 */
|
|
}
|
|
u8x8->byte_cb(u8x8, U8X8_MSG_CAD_SEND_DATA, arg_int, p);
|
|
break;
|
|
case U8X8_MSG_CAD_INIT:
|
|
/* apply default i2c adr if required so that the start transfer msg can use this */
|
|
if(u8x8->i2c_address == 255) u8x8->i2c_address = 0x060;
|
|
return u8x8->byte_cb(u8x8, msg, arg_int, arg_ptr);
|
|
case U8X8_MSG_CAD_START_TRANSFER:
|
|
in_transfer = 0;
|
|
break;
|
|
case U8X8_MSG_CAD_END_TRANSFER:
|
|
if(in_transfer != 0) u8x8_byte_EndTransfer(u8x8);
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
/* cad procedure for the UC16xx family in I2C mode */
|
|
/* u8x8_byte_SetDC is not used */
|
|
/* DC bit is encoded into the adr byte */
|
|
uint8_t u8x8_cad_uc16xx_i2c(u8x8_t* u8x8, uint8_t msg, uint8_t arg_int, void* arg_ptr) {
|
|
static uint8_t in_transfer = 0;
|
|
static uint8_t is_data = 0;
|
|
uint8_t* p;
|
|
switch(msg) {
|
|
case U8X8_MSG_CAD_SEND_CMD:
|
|
case U8X8_MSG_CAD_SEND_ARG:
|
|
if(in_transfer != 0) {
|
|
if(is_data != 0) {
|
|
/* transfer mode is active, but data transfer */
|
|
u8x8_byte_EndTransfer(u8x8);
|
|
/* clear the lowest two bits of the adr */
|
|
u8x8_SetI2CAddress(u8x8, u8x8_GetI2CAddress(u8x8) & 0x0fc);
|
|
u8x8_byte_StartTransfer(u8x8);
|
|
}
|
|
} else {
|
|
/* clear the lowest two bits of the adr */
|
|
u8x8_SetI2CAddress(u8x8, u8x8_GetI2CAddress(u8x8) & 0x0fc);
|
|
u8x8_byte_StartTransfer(u8x8);
|
|
}
|
|
u8x8_byte_SendByte(u8x8, arg_int);
|
|
in_transfer = 1;
|
|
break;
|
|
case U8X8_MSG_CAD_SEND_DATA:
|
|
if(in_transfer != 0) {
|
|
if(is_data == 0) {
|
|
/* transfer mode is active, but data transfer */
|
|
u8x8_byte_EndTransfer(u8x8);
|
|
/* clear the lowest two bits of the adr */
|
|
u8x8_SetI2CAddress(u8x8, (u8x8_GetI2CAddress(u8x8) & 0x0fc) | 2);
|
|
u8x8_byte_StartTransfer(u8x8);
|
|
}
|
|
} else {
|
|
/* clear the lowest two bits of the adr */
|
|
u8x8_SetI2CAddress(u8x8, (u8x8_GetI2CAddress(u8x8) & 0x0fc) | 2);
|
|
u8x8_byte_StartTransfer(u8x8);
|
|
}
|
|
in_transfer = 1;
|
|
|
|
p = arg_ptr;
|
|
while(arg_int > 24) {
|
|
u8x8->byte_cb(u8x8, U8X8_MSG_CAD_SEND_DATA, 24, p);
|
|
arg_int -= 24;
|
|
p += 24;
|
|
u8x8_byte_EndTransfer(u8x8);
|
|
u8x8_byte_StartTransfer(u8x8);
|
|
}
|
|
u8x8->byte_cb(u8x8, U8X8_MSG_CAD_SEND_DATA, arg_int, p);
|
|
|
|
break;
|
|
case U8X8_MSG_CAD_INIT:
|
|
/* apply default i2c adr if required so that the start transfer msg can use this */
|
|
if(u8x8->i2c_address == 255) u8x8->i2c_address = 0x070;
|
|
return u8x8->byte_cb(u8x8, msg, arg_int, arg_ptr);
|
|
case U8X8_MSG_CAD_START_TRANSFER:
|
|
in_transfer = 0;
|
|
/* actual start is delayed, because we do not whether this is data or cmd transfer */
|
|
break;
|
|
case U8X8_MSG_CAD_END_TRANSFER:
|
|
if(in_transfer != 0) u8x8_byte_EndTransfer(u8x8);
|
|
in_transfer = 0;
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|