122 lines
4.2 KiB
C
122 lines
4.2 KiB
C
/*
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u8x8_d_ls013b7dh03.c
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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 LS013B7DH02 is a simple display and controller
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--> no support for contrast adjustment, flip and power down.
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*/
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#include "u8x8.h"
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static const u8x8_display_info_t u8x8_ls013b7dh03_128x128_display_info =
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{
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/* chip_enable_level = */ 1,
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/* chip_disable_level = */ 0,
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/* post_chip_enable_wait_ns = */ 255, /* 6000ns ??? */
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/* pre_chip_disable_wait_ns = */ 255, /* 2000ns ??? */
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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 = */ 227, /* 227 nsec according to the datasheet */
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/* sck_pulse_width_ns = */ 255, /* 450 nsec according to the datasheet */
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/* sck_takeover_edge = */ 1, /* rising edge */
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/* i2c_bus_clock_100kHz = */ 4,
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/* data_setup_time_ns = */ 100,
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/* write_pulse_width_ns = */ 100,
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/* tile_width = */ 16,
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/* tile_hight = */ 16,
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/* default_x_offset = */ 0,
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/* flipmode_x_offset = */ 0,
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/* pixel_width = */ 128,
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/* pixel_height = */ 128
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};
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uint8_t u8x8_d_ls013b7dh03_128x128(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
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{
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uint8_t y, c, i;
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uint8_t *ptr;
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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_ls013b7dh03_128x128_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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/* u8x8_cad_SendSequence(u8x8, u8x8_d_ls013b7dh03_init_seq); */
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break;
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case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
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/* not available for the ls013b7dh03 */
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break;
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case U8X8_MSG_DISPLAY_DRAW_TILE:
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y = (((u8x8_tile_t *)arg_ptr)->y_pos);
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y++; /* lines are from 1..128, so add 1 here */
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/* x has to be zero for all transfers to the ls013b7dh03 */
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/* in fact all data has to start at the left edge */
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u8x8_cad_StartTransfer(u8x8);
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/*
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Tile structure is reused here for the ls013b7dh03, however u8x8 is not supported
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tile_ptr points to data which has cnt*8 bytes (same as SSD1306 tiles)
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Buffer is expected to have 8 lines of code fitting to the ls013b7dh03 internal memory
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"cnt" includes the number of horizontal bytes. width is equal to cnt*8
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*/
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c = ((u8x8_tile_t *)arg_ptr)->cnt; /* number of tiles. This must be 16 for the ls013b7dh03 128x128 */
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ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr; /* data ptr to the tiles */
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for( i = 0; i < 8; i++ )
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{
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u8x8_cad_SendCmd(u8x8, 0x080 ); /* data mode byte */
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u8x8_cad_SendCmd(u8x8, y ); /* y pos */
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u8x8_cad_SendData(u8x8, c, ptr); /* note: SendData can not handle more than 255 bytes, send one line of data */
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u8x8_cad_SendCmd(u8x8, 0); /* two bytes of dummy data */
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u8x8_cad_SendCmd(u8x8, 0); /* two bytes of dummy data */
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ptr += c;
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}
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u8x8_cad_EndTransfer(u8x8);
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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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