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PersonalVotingMachine/basic-setup/components/u8g2/csrc/u8x8_d_sh1108.c
valeh 26b0ba5954 first commit
2020-12-22 14:30:09 +02:00

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/*
u8x8_d_sh1108.c
Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
Copyright (c) 2018, olikraus@gmail.com
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this list
of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this
list of conditions and the following disclaimer in the documentation and/or other
materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "u8x8.h"
/*
code copyied from sh1107
SH1108: 160x160 controller from Sino Wealth
*/
static const uint8_t u8x8_d_sh1108_noname_powersave0_seq[] = {
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
U8X8_C(0x0af), /* display on */
U8X8_END_TRANSFER(), /* disable chip */
U8X8_END() /* end of sequence */
};
static const uint8_t u8x8_d_sh1108_noname_powersave1_seq[] = {
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
U8X8_C(0x0ae), /* display off */
U8X8_END_TRANSFER(), /* disable chip */
U8X8_END() /* end of sequence */
};
static const uint8_t u8x8_d_sh1108_160x160_noname_powersave0_seq[] = {
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
U8X8_C(0x0a0), /* segment remap a0/a1*/
U8X8_C(0x0c0), /* c0: scan dir normal, c8: reverse */
U8X8_END_TRANSFER(), /* disable chip */
U8X8_END() /* end of sequence */
};
static const uint8_t u8x8_d_sh1108_160x160_noname_powersave1_seq[] = {
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
U8X8_C(0x0a1), /* segment remap a0/a1*/
U8X8_C(0x0c8), /* c0: scan dir normal, c8: reverse */
U8X8_END_TRANSFER(), /* disable chip */
U8X8_END() /* end of sequence */
};
static uint8_t u8x8_d_sh1108_generic(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
{
uint8_t x, c;
uint8_t *ptr;
switch(msg)
{
/* handled by the calling function
case U8X8_MSG_DISPLAY_SETUP_MEMORY:
u8x8_d_helper_display_setup_memory(u8x8, &u8x8_sh1108_64x128_noname_display_info);
break;
*/
/* handled by the calling function
case U8X8_MSG_DISPLAY_INIT:
u8x8_d_helper_display_init(u8x8);
u8x8_cad_SendSequence(u8x8, u8x8_d_sh1108_64x128_noname_init_seq);
break;
*/
case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
if ( arg_int == 0 )
u8x8_cad_SendSequence(u8x8, u8x8_d_sh1108_noname_powersave0_seq);
else
u8x8_cad_SendSequence(u8x8, u8x8_d_sh1108_noname_powersave1_seq);
break;
case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
if ( arg_int == 0 )
{
u8x8_cad_SendSequence(u8x8, u8x8_d_sh1108_160x160_noname_powersave0_seq);
u8x8->x_offset = u8x8->display_info->default_x_offset;
}
else
{
u8x8_cad_SendSequence(u8x8, u8x8_d_sh1108_160x160_noname_powersave1_seq);
u8x8->x_offset = u8x8->display_info->flipmode_x_offset;
}
break;
#ifdef U8X8_WITH_SET_CONTRAST
case U8X8_MSG_DISPLAY_SET_CONTRAST:
u8x8_cad_StartTransfer(u8x8);
u8x8_cad_SendCmd(u8x8, 0x081 );
u8x8_cad_SendArg(u8x8, arg_int ); /* sh1108 has range from 0 to 255 */
u8x8_cad_EndTransfer(u8x8);
break;
#endif
case U8X8_MSG_DISPLAY_DRAW_TILE:
u8x8_cad_StartTransfer(u8x8);
x = ((u8x8_tile_t *)arg_ptr)->x_pos;
x *= 8;
x += u8x8->x_offset;
//u8x8_cad_SendCmd(u8x8, 0x040 ); /* set line offset to 0 */
// set column address
u8x8_cad_SendCmd(u8x8, 0x010 | (x >> 4));
u8x8_cad_SendCmd(u8x8, 0x000 | ((x & 15)));
// set page address
u8x8_cad_SendCmd(u8x8, 0x0b0 ); // page cmd is a two byte command
u8x8_cad_SendArg(u8x8, (((u8x8_tile_t *)arg_ptr)->y_pos));
do
{
c = ((u8x8_tile_t *)arg_ptr)->cnt;
ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr;
u8x8_cad_SendData(u8x8, c*8, ptr); /* note: SendData can not handle more than 255 bytes */
arg_int--;
} while( arg_int > 0 );
u8x8_cad_EndTransfer(u8x8);
break;
default:
return 0;
}
return 1;
}
/*==================================================*/
/* issue #619, 160x160 OLED */
static const uint8_t u8x8_d_sh1108_160x160_noname_init_seq[] = {
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
U8X8_C(0x0ae), /* display off */
U8X8_CA(0x0d5, 0x060), /* clock divide ratio and oscillator frequency */
U8X8_CA(0x0a9, 0x003), /* set display resolution, 0=64x160, 1=96x160, 2=128x160, 3=160x160 */
U8X8_C(0x020), /* use page addressing mode */
U8X8_CA(0x081, 0x01f), /* set contrast control */
U8X8_CA(0x0ad, 0x80), /* DC/DC control 80=Use external Vpp, 89=Use internal DC/DC*/
U8X8_C(0x030), /* set discharge VSL level, 0x030..0x03f */
U8X8_CA(0x0d9, 0x028), /* pre-charge period */
U8X8_CA(0x0db, 0x035), /* vcomh deselect level */
U8X8_CA(0x0dc, 0x035), /* VSEGM Deselect Level */
U8X8_C(0x0a0), /* segment remap a0/a1*/
U8X8_C(0x0c0), /* c0: scan dir normal, c8: reverse */
U8X8_C(0x0a4), /* output ram to display */
U8X8_C(0x0a6), /* none inverted normal display mode */
U8X8_END_TRANSFER(), /* disable chip */
U8X8_END() /* end of sequence */
};
static const u8x8_display_info_t u8x8_sh1108_160x160_noname_display_info =
{
/* chip_enable_level = */ 0,
/* chip_disable_level = */ 1,
/* post_chip_enable_wait_ns = */ 60,
/* pre_chip_disable_wait_ns = */ 120,
/* reset_pulse_width_ms = */ 100, /* sh1108: 3 us */
/* post_reset_wait_ms = */ 100, /* sometimes OLEDs need much longer setup time */
/* sda_setup_time_ns = */ 100, /* sh1108: 100ns */
/* sck_pulse_width_ns = */ 100, /* sh1108: 100ns */
/* sck_clock_hz = */ 4000000UL, /* since Arduino 1.6.0, the SPI bus speed in Hz. Should be 1000000000/sck_pulse_width_ns */
/* spi_mode = */ 0, /* active high, rising edge */
/* i2c_bus_clock_100kHz = */ 4,
/* data_setup_time_ns = */ 40,
/* write_pulse_width_ns = */ 150, /* sh1108: cycle time is 300ns, so use 300/2 = 150 */
/* tile_width = */ 20,
/* tile_height = */ 20,
/* default_x_offset = */ 0,
/* flipmode_x_offset = */ 0,
/* pixel_width = */ 160,
/* pixel_height = */ 160
};
uint8_t u8x8_d_sh1108_160x160(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
{
if ( u8x8_d_sh1108_generic(u8x8, msg, arg_int, arg_ptr) != 0 )
return 1;
switch(msg)
{
case U8X8_MSG_DISPLAY_INIT:
u8x8_d_helper_display_init(u8x8);
u8x8_cad_SendSequence(u8x8, u8x8_d_sh1108_160x160_noname_init_seq);
break;
case U8X8_MSG_DISPLAY_SETUP_MEMORY:
u8x8_d_helper_display_setup_memory(u8x8, &u8x8_sh1108_160x160_noname_display_info);
break;
default:
return 0;
}
return 1;
}
/*==================================================*/
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