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290 lines
8.8 KiB
290 lines
8.8 KiB
/*
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u8x8_d_sh1122.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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Idea: SH1122 is a horizontal device, which doesn't support u8x8
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However in the similar SSD1362 device, we do the correct tile conversion,
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so maybe takeover code from SSD1362 to SH1122, so that SH1122 can also
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support u8x8
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*/
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#include "u8x8.h"
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static const uint8_t u8x8_d_sh1122_powersave0_seq[] = {
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U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
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U8X8_C(0x0af), /* sh1122: display on */
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U8X8_END_TRANSFER(), /* disable chip */
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U8X8_END() /* end of sequence */
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};
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static const uint8_t u8x8_d_sh1122_powersave1_seq[] = {
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U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
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U8X8_C(0x0ae), /* sh1122: display off */
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U8X8_END_TRANSFER(), /* disable chip */
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U8X8_END() /* end of sequence */
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};
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/*
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input:
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one tile (8 Bytes)
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output:
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Tile for SH1122 (32 Bytes)
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*/
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/*
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static uint8_t u8x8_sh1122_to32_dest_buf[32];
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static uint8_t *u8x8_sh1122_8to32(U8X8_UNUSED u8x8_t *u8x8, uint8_t *ptr)
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{
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uint8_t v;
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uint8_t a,b;
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uint8_t i, j;
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uint8_t *dest;
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for( j = 0; j < 4; j++ )
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{
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dest = u8x8_sh1122_to32_dest_buf;
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dest += j;
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a =*ptr;
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ptr++;
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b = *ptr;
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ptr++;
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for( i = 0; i < 8; i++ )
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{
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v = 0;
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if ( a&1 ) v |= 0xf0;
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if ( b&1 ) v |= 0x0f;
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*dest = v;
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dest+=4;
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a >>= 1;
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b >>= 1;
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}
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}
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return u8x8_sh1122_to32_dest_buf;
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}
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*/
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static uint8_t u8x8_write_byte_to_16gr_device(u8x8_t *u8x8, uint8_t b)
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{
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static uint8_t buf[4];
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static uint8_t map[4] = { 0, 0x00f, 0x0f0, 0x0ff };
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buf [3] = map[b & 3];
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b>>=2;
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buf [2] = map[b & 3];
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b>>=2;
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buf [1] = map[b & 3];
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b>>=2;
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buf [0] = map[b & 3];
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return u8x8_cad_SendData(u8x8, 4, buf);
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}
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uint8_t u8x8_d_sh1122_common(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
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{
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uint8_t x;
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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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/* U8X8_MSG_DISPLAY_SETUP_MEMORY is handled by the calling function */
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/*
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case U8X8_MSG_DISPLAY_SETUP_MEMORY:
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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_sh1122_256x64_init_seq);
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break;
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*/
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case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
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if ( arg_int == 0 )
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u8x8_cad_SendSequence(u8x8, u8x8_d_sh1122_powersave0_seq);
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else
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u8x8_cad_SendSequence(u8x8, u8x8_d_sh1122_powersave1_seq);
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break;
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#ifdef U8X8_WITH_SET_CONTRAST
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case U8X8_MSG_DISPLAY_SET_CONTRAST:
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u8x8_cad_StartTransfer(u8x8);
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u8x8_cad_SendCmd(u8x8, 0x081 );
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u8x8_cad_SendArg(u8x8, arg_int ); /* sh1122 has range from 0 to 255 */
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u8x8_cad_EndTransfer(u8x8);
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break;
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#endif
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case U8X8_MSG_DISPLAY_DRAW_TILE:
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u8x8_cad_StartTransfer(u8x8);
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x = ((u8x8_tile_t *)arg_ptr)->x_pos;
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x *= 2; // 4 Mar 2022: probably this needs to be 4, but this device is call with x=0 only
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x += u8x8->x_offset;
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y = (((u8x8_tile_t *)arg_ptr)->y_pos);
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y *= 8;
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c = ((u8x8_tile_t *)arg_ptr)->cnt; /* number of tiles */
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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, 0x0b0 ); /* set row address */
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u8x8_cad_SendArg(u8x8, y);
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u8x8_cad_SendCmd(u8x8, x & 15 ); /* lower 4 bit*/
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u8x8_cad_SendCmd(u8x8, 0x010 | (x >> 4) ); /* higher 3 bit */
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c = ((u8x8_tile_t *)arg_ptr)->cnt; /* number of tiles */
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while ( c > 0 )
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{
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u8x8_write_byte_to_16gr_device(u8x8, *ptr);
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c--;
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ptr++;
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}
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y++;
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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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/*=========================================================*/
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static const uint8_t u8x8_d_sh1122_256x64_flip0_seq[] = {
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U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
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U8X8_C(0x0a1), /* remap */
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U8X8_C(0x0c8), /* remap */
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U8X8_C(0x060),
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U8X8_END_TRANSFER(), /* disable chip */
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U8X8_END() /* end of sequence */
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};
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static const uint8_t u8x8_d_sh1122_256x64_flip1_seq[] = {
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U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
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U8X8_C(0x0a0), /* remap */
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U8X8_C(0x0c0), /* remap */
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U8X8_C(0x040),
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U8X8_END_TRANSFER(), /* disable chip */
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U8X8_END() /* end of sequence */
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};
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static const u8x8_display_info_t u8x8_sh1122_256x64_display_info =
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{
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/* chip_enable_level = */ 0,
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/* chip_disable_level = */ 1,
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/* post_chip_enable_wait_ns = */ 20,
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/* pre_chip_disable_wait_ns = */ 10,
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/* reset_pulse_width_ms = */ 10, /* sh1122: 10 us */
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/* post_reset_wait_ms = */ 20, /* */
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/* sda_setup_time_ns = */ 125, /* sh1122: cycle time is 250ns, so use 250/2 */
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/* sck_pulse_width_ns = */ 125, /* sh1122: cycle time is 250ns, so use 250/2 */
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/* sck_clock_hz = */ 40000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns */
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/* spi_mode = */ 0, /* active high, rising edge */
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/* i2c_bus_clock_100kHz = */ 4,
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/* data_setup_time_ns = */ 10,
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/* write_pulse_width_ns = */ 150, /* sh1122: cycle time is 300ns, so use 300/2 = 150 */
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/* tile_width = */ 32, /* 256 pixel, so we require 32 bytes for this */
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/* tile_height = */ 8,
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/* default_x_offset = */ 0, /* this is the byte offset (there are two pixel per byte with 4 bit per pixel) */
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/* flipmode_x_offset = */ 0,
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/* pixel_width = */ 256,
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/* pixel_height = */ 64
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};
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static const uint8_t u8x8_d_sh1122_256x64_init_seq[] = {
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U8X8_DLY(1),
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U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
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U8X8_DLY(1),
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U8X8_C(0xae), /* display off */
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U8X8_C(0x40), /* display start line */
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U8X8_C(0x0a0), /* remap */
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U8X8_C(0x0c0), /* remap */
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U8X8_CA(0x81, 0x80), /* set display contrast */
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U8X8_CA(0xa8, 0x3f), /* multiplex ratio 1/64 Duty (0x0F~0x3F) */
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U8X8_CA(0xad, 0x81), /* use buildin DC-DC with 0.6 * 500 kHz */
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U8X8_CA(0xd5, 0x50), /* set display clock divide ratio (lower 4 bit)/oscillator frequency (upper 4 bit) */
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U8X8_CA(0xd3, 0x00), /* display offset, shift mapping ram counter */
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U8X8_CA(0xd9, 0x22), /* pre charge (lower 4 bit) and discharge(higher 4 bit) period */
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U8X8_CA(0xdb, 0x35), /* VCOM deselect level */
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U8X8_CA(0xdc, 0x35), /* Pre Charge output voltage */
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U8X8_C(0x030), /* discharge level */
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U8X8_DLY(1), /* delay */
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U8X8_END_TRANSFER(), /* disable chip */
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U8X8_END() /* end of sequence */
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};
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uint8_t u8x8_d_sh1122_256x64(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
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{
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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_sh1122_256x64_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_sh1122_256x64_init_seq);
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break;
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case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
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if ( arg_int == 0 )
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{
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u8x8_cad_SendSequence(u8x8, u8x8_d_sh1122_256x64_flip0_seq);
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u8x8->x_offset = u8x8->display_info->default_x_offset;
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}
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else
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{
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u8x8_cad_SendSequence(u8x8, u8x8_d_sh1122_256x64_flip1_seq);
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u8x8->x_offset = u8x8->display_info->flipmode_x_offset;
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}
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break;
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default:
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return u8x8_d_sh1122_common(u8x8, msg, arg_int, arg_ptr);
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}
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return 1;
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}
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