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352 lines
10 KiB
352 lines
10 KiB
/*
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u8x8_d_hd44102.c
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Support for HD44102 and T7932 controller (https://github.com/olikraus/u8g2/issues/1492)
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Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
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Copyright (c) 2021, 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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*/
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#include "u8x8.h"
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static const uint8_t u8x8_d_hd44102_init_seq[] = {
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U8X8_C(0x03b), /* upcount */
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U8X8_C(0x03e), /* start at the top */
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U8X8_END() /* end of sequence */
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};
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static const uint8_t u8x8_d_hd44102_powersave0_seq[] = {
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U8X8_C(0x039), /* display on */
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U8X8_END() /* end of sequence */
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};
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static const uint8_t u8x8_d_hd44102_powersave1_seq[] = {
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U8X8_C(0x038), /* display off */
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U8X8_END() /* end of sequence */
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};
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/*
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data: pointer to "cnt" bytes
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cnt: number of bytes, which should be sent
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page: 0..3: the current page within the display
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offset: offset location on the display, where the data should be placed
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cs_none: 3-bit chip select pattern for not selecting any display
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cs0: 3-bit chip select pattern for the left display (0..49)
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cs1: 3-bit chip select pattern for the middle display (50..99)
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cs2: 3-bit chip select pattern for the right display (100..149)
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The csX bit pattern is:
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bit 0: CS
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bit 1: CS1
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bit 2: CS2
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see u8x8_byte_set_ks0108_cs() in u8x8_byte.c
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*/
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static void u8x8_hd44102_outy(u8x8_t *u8x8, uint8_t *data, uint8_t cnt, uint8_t page, uint8_t offset, uint8_t cs_none, uint8_t cs0, uint8_t cs1, uint8_t cs2)
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{
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uint8_t pos = offset;
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uint8_t data_cnt;
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/* write to left display? */
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if ( pos < 50 && cnt > 0 )
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{
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/* calculate number of bytes to sent */
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data_cnt = 50 - pos;
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if ( data_cnt > cnt )
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data_cnt = cnt;
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if ( data_cnt > 50 )
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data_cnt = 50;
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/* sent the data */
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u8x8->cad_cb(u8x8, U8X8_MSG_CAD_START_TRANSFER, cs0, NULL);
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u8x8_cad_SendCmd(u8x8, (page << 6) | pos );
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u8x8_cad_SendData(u8x8, data_cnt, data);
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u8x8->cad_cb(u8x8, U8X8_MSG_CAD_END_TRANSFER, cs_none, NULL);
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/* adjust the data */
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data += data_cnt;
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pos += data_cnt;
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cnt -= data_cnt;
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}
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/* write to middle display? */
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if ( pos < 100 && cnt > 0 )
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{
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/* calculate number of bytes to sent */
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data_cnt = 100 - pos;
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if ( data_cnt > cnt )
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data_cnt = cnt;
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if ( data_cnt > 50 )
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data_cnt = 50;
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/* sent the data */
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u8x8->cad_cb(u8x8, U8X8_MSG_CAD_START_TRANSFER, cs1, NULL);
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u8x8_cad_SendCmd(u8x8, (page << 6) | (pos-50) );
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u8x8_cad_SendData(u8x8, data_cnt, data);
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u8x8->cad_cb(u8x8, U8X8_MSG_CAD_END_TRANSFER, cs_none, NULL);
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/* adjust the data */
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data += data_cnt;
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pos += data_cnt;
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cnt -= data_cnt;
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}
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/* write to right display? */
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if ( pos < 150 && cnt > 0 )
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{
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/* calculate number of bytes to sent */
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data_cnt = 150 - pos;
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if ( data_cnt > cnt )
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data_cnt = cnt;
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if ( data_cnt > 50 )
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data_cnt = 50;
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/* sent the data */
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u8x8->cad_cb(u8x8, U8X8_MSG_CAD_START_TRANSFER, cs2, NULL);
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u8x8_cad_SendCmd(u8x8, (page << 6) | (pos-100) );
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u8x8_cad_SendData(u8x8, data_cnt, data);
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u8x8->cad_cb(u8x8, U8X8_MSG_CAD_END_TRANSFER, cs_none, NULL);
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/* adjust the data */
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data += data_cnt;
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pos += data_cnt;
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cnt -= data_cnt;
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}
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}
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static const u8x8_display_info_t u8x8_hd44102_150x32_display_info =
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{
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/* chip_enable_level = */ 0, /* KS0108/HD44102: Not used */
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/* chip_disable_level = */ 1, /* KS0108/HD44102: Not used */
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/* post_chip_enable_wait_ns = */ 100,
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/* pre_chip_disable_wait_ns = */ 20,
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/* reset_pulse_width_ms = */ 1,
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/* post_reset_wait_ms = */ 6,
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/* sda_setup_time_ns = */ 12,
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/* sck_pulse_width_ns = */ 75, /* KS0108/HD44102: Not used */
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/* sck_clock_hz = */ 4000000UL, /* KS0108/HD44102: Not used */
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/* spi_mode = */ 0, /* active high, rising edge */
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/* i2c_bus_clock_100kHz = */ 4, /* KS0108/HD44102: Not used */
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/* data_setup_time_ns = */ 200,
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/* write_pulse_width_ns = */ 250, /* KS0108/HD44102: actially 450 ns, but additional 200 ns are added by the byte transfer function */
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/* tile_width = */ 19, /* width of 19*8=152 pixel */
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/* tile_height = */ 4,
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/* default_x_offset = */ 0,
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/* flipmode_x_offset = */ 0,
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/* pixel_width = */ 150,
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/* pixel_height = */ 32
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};
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//uint8_t u8x8_d_hd44102_150x32(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
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uint8_t u8x8_d_t7932_150x32(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
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{
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uint8_t cs[4] = {1, 2, 4, 0};
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uint8_t i;
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uint8_t x, cnt;
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switch(msg)
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{
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case U8X8_MSG_DISPLAY_SETUP_MEMORY:
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u8x8_d_helper_display_setup_memory(u8x8, &u8x8_hd44102_150x32_display_info);
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break;
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case U8X8_MSG_DISPLAY_INIT:
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u8x8_d_helper_display_init(u8x8);
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for( i = 0; i < 3; i++ )
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{
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u8x8->cad_cb(u8x8, U8X8_MSG_CAD_START_TRANSFER, cs[i], NULL);
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u8x8_cad_SendSequence(u8x8, u8x8_d_hd44102_init_seq);
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u8x8->cad_cb(u8x8, U8X8_MSG_CAD_END_TRANSFER, cs[3], NULL);
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}
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break;
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case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
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for( i = 0; i < 3; i++ )
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{
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u8x8->cad_cb(u8x8, U8X8_MSG_CAD_START_TRANSFER, cs[i], NULL);
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if ( arg_int == 0 )
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{
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u8x8_cad_SendSequence(u8x8, u8x8_d_hd44102_powersave0_seq);
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}
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else
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{
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u8x8_cad_SendSequence(u8x8, u8x8_d_hd44102_powersave1_seq);
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}
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u8x8->cad_cb(u8x8, U8X8_MSG_CAD_END_TRANSFER, cs[3], NULL);
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}
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break;
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// The HD44102 can not mirror the cols and rows, use U8g2 for rotation
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// case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
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// break;
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// The HD44102 has no internal contrast command
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// case U8X8_MSG_DISPLAY_SET_CONTRAST:
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// break;
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case U8X8_MSG_DISPLAY_DRAW_TILE:
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x = ((u8x8_tile_t *)arg_ptr)->x_pos;
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cnt = ((u8x8_tile_t *)arg_ptr)->cnt;
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x*=8;
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cnt*=8;
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do
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{
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u8x8_hd44102_outy(u8x8,
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((u8x8_tile_t *)arg_ptr)->tile_ptr,
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cnt,
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((u8x8_tile_t *)arg_ptr)->y_pos,
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x,
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cs[3], cs[0], cs[1], cs[2]);
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arg_int--;
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x += cnt;
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} while (arg_int > 0);
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break;
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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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static const u8x8_display_info_t u8x8_hd44102_100x64_display_info =
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{
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/* chip_enable_level = */ 0, /* KS0108/HD44102: Not used */
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/* chip_disable_level = */ 1, /* KS0108/HD44102: Not used */
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/* post_chip_enable_wait_ns = */ 100,
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/* pre_chip_disable_wait_ns = */ 20,
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/* reset_pulse_width_ms = */ 1,
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/* post_reset_wait_ms = */ 6,
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/* sda_setup_time_ns = */ 12,
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/* sck_pulse_width_ns = */ 75, /* KS0108/HD44102: Not used */
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/* sck_clock_hz = */ 4000000UL, /* KS0108/HD44102: Not used */
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/* spi_mode = */ 0, /* active high, rising edge */
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/* i2c_bus_clock_100kHz = */ 4, /* KS0108/HD44102: Not used */
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/* data_setup_time_ns = */ 200,
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/* write_pulse_width_ns = */ 250, /* KS0108/HD44102: actially 450 ns, but additional 200 ns are added by the byte transfer function */
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/* tile_width = */ 13, /* width of 13*8=104 pixel */
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/* tile_height = */ 8,
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/* default_x_offset = */ 0,
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/* flipmode_x_offset = */ 0,
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/* pixel_width = */ 100,
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/* pixel_height = */ 64
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};
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uint8_t u8x8_d_hd44102_100x64(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
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{
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uint8_t i;
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uint8_t x, cnt, page;
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switch(msg)
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{
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case U8X8_MSG_DISPLAY_SETUP_MEMORY:
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u8x8_d_helper_display_setup_memory(u8x8, &u8x8_hd44102_100x64_display_info);
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break;
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case U8X8_MSG_DISPLAY_INIT:
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u8x8_d_helper_display_init(u8x8);
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for( i = 0; i < 4; i++ )
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{
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u8x8->cad_cb(u8x8, U8X8_MSG_CAD_START_TRANSFER, i, NULL);
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u8x8_cad_SendSequence(u8x8, u8x8_d_hd44102_init_seq);
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u8x8->cad_cb(u8x8, U8X8_MSG_CAD_END_TRANSFER, 7, NULL);
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}
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break;
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case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
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for( i = 0; i < 4; i++ )
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{
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u8x8->cad_cb(u8x8, U8X8_MSG_CAD_START_TRANSFER, i, NULL);
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if ( arg_int == 0 )
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{
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u8x8_cad_SendSequence(u8x8, u8x8_d_hd44102_powersave0_seq);
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}
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else
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{
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u8x8_cad_SendSequence(u8x8, u8x8_d_hd44102_powersave1_seq);
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}
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u8x8->cad_cb(u8x8, U8X8_MSG_CAD_END_TRANSFER, 7, NULL);
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}
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break;
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// The HD44102 can not mirror the cols and rows, use U8g2 for rotation
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// case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
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// break;
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// The HD44102 has no internal contrast command
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// case U8X8_MSG_DISPLAY_SET_CONTRAST:
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// break;
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case U8X8_MSG_DISPLAY_DRAW_TILE:
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x = ((u8x8_tile_t *)arg_ptr)->x_pos;
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cnt = ((u8x8_tile_t *)arg_ptr)->cnt;
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page = ((u8x8_tile_t *)arg_ptr)->y_pos;
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x*=8;
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cnt*=8;
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if ( page < 4 )
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{
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do
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{
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u8x8_hd44102_outy(u8x8,
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((u8x8_tile_t *)arg_ptr)->tile_ptr,
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cnt,
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page,
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x,
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7, 0, 1, 7);
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arg_int--;
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x += cnt;
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} while (arg_int > 0);
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}
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else
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{
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do
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{
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u8x8_hd44102_outy(u8x8,
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((u8x8_tile_t *)arg_ptr)->tile_ptr,
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cnt,
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page-4,
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x,
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7, 2, 3, 7);
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arg_int--;
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x += cnt;
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} while (arg_int > 0);
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}
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break;
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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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