mirror of
https://github.com/Valeh2012/PersonalVotingMachine
synced 2024-11-22 17:30:59 +02:00
203 lines
7.0 KiB
C
203 lines
7.0 KiB
C
/*
|
|
|
|
u8x8_d_ist7920.c
|
|
|
|
this is NOT ST7920!
|
|
|
|
Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
|
|
|
|
Copyright (c) 2019, 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"
|
|
|
|
|
|
|
|
|
|
static const uint8_t u8x8_d_ist7920_128x128_powersave0_seq[] = {
|
|
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
|
|
U8X8_C(0x03d), /* display on */
|
|
U8X8_END_TRANSFER(), /* disable chip */
|
|
U8X8_END() /* end of sequence */
|
|
};
|
|
|
|
static const uint8_t u8x8_d_ist7920_128x128_powersave1_seq[] = {
|
|
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
|
|
U8X8_C(0x03c), /* display off */
|
|
U8X8_END_TRANSFER(), /* disable chip */
|
|
U8X8_END() /* end of sequence */
|
|
};
|
|
|
|
static const uint8_t u8x8_d_ist7920_128x128_flip0_seq[] = {
|
|
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
|
|
U8X8_C(0x064), /* Display Ctrl: Bit3: SHL 2:ADC 1:EON, 0:REV */
|
|
U8X8_END_TRANSFER(), /* disable chip */
|
|
U8X8_END() /* end of sequence */
|
|
};
|
|
|
|
static const uint8_t u8x8_d_ist7920_128x128_flip1_seq[] = {
|
|
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
|
|
U8X8_C(0x068), /* Display Ctrl: Bit3: SHL 2:ADC 1:EON, 0:REV */
|
|
U8X8_END_TRANSFER(), /* disable chip */
|
|
U8X8_END() /* end of sequence */
|
|
};
|
|
|
|
|
|
static const u8x8_display_info_t u8x8_ist7920_128x128_display_info =
|
|
{
|
|
/* chip_enable_level = */ 0,
|
|
/* chip_disable_level = */ 1,
|
|
|
|
/* post_chip_enable_wait_ns = */ 90, /* IST7920 datasheet, page 48 */
|
|
/* pre_chip_disable_wait_ns = */ 90, /* IST7920 datasheet, page 48 */
|
|
/* reset_pulse_width_ms = */ 10,
|
|
/* post_reset_wait_ms = */ 20, /* IST7920 Startup Seq.. */
|
|
/* sda_setup_time_ns = */ 45, /* IST7920 datasheet, page 48 */
|
|
/* sck_pulse_width_ns = */ 130, /* IST7920 datasheet, page 48 */
|
|
/* sck_clock_hz = */ 3000000UL, /* IST7920 datasheet: 260ns */
|
|
/* spi_mode = */ 0, /* active high, rising edge (not verified) */
|
|
/* i2c_bus_clock_100kHz = */ 4, /* 400kHz according to IST7920 datasheet */
|
|
/* data_setup_time_ns = */ 60, /* IST7920 datasheet, page 47 */
|
|
/* write_pulse_width_ns = */ 150, /* IST7920 datasheet, page 47 */
|
|
/* tile_width = */ 16, /* width of 16*8=128 pixel */
|
|
/* tile_hight = */ 16,
|
|
/* default_x_offset = */ 0,
|
|
/* flipmode_x_offset = */ 0,
|
|
/* pixel_width = */ 128,
|
|
/* pixel_height = */ 128
|
|
};
|
|
|
|
/* 1/128 Duty, 1/10 Bias, 128x128 round display */
|
|
static const uint8_t u8x8_d_ist7920_128x128_init_seq[] = {
|
|
|
|
U8X8_START_TRANSFER(), /* enable chip, delay is part of the transfer start */
|
|
|
|
U8X8_C(0x076), /* Software Reset */
|
|
U8X8_DLY(50),
|
|
U8X8_C(0x03c), /* display off */
|
|
|
|
|
|
U8X8_CA(0x090, 128), /* Set Duty */
|
|
//U8X8_CAA(0x0b2, 0x011, 0x00), /* Set Frame Control */
|
|
|
|
U8X8_CA(0x030, 16), /* Set Bias 0: 1/8, 8: 1/9, 16: 1/10, 24: 1/11, 48: 1/12 ... */
|
|
U8X8_CA(0x031, 0x03f), /* Set voltage generate clock(31H/11H) */
|
|
//U8X8_CA(0x032, 0x015), /* Temperature compensation */
|
|
U8X8_CA(0x033, 0x020), /* Power Control */
|
|
U8X8_DLY(100),
|
|
U8X8_CA(0x033, 0x02c), /* Power Control */
|
|
U8X8_DLY(100),
|
|
U8X8_C(0xfd), /* set booster */
|
|
U8X8_DLY(100),
|
|
U8X8_CA(0x033, 0x02f), /* Power Control */
|
|
U8X8_DLY(200),
|
|
|
|
U8X8_C(0x064), /* Display Ctrl: Bit3: SHL 2:ADC 1:EON, 0:REV */
|
|
|
|
U8X8_CAA(0x074, 0x000, 0x00f), /* AY Window */
|
|
U8X8_CAA(0x075, 0x000, 0x07f), /* AX Window */
|
|
|
|
U8X8_CA(0x040, 64), /* Start line at 64 */
|
|
|
|
U8X8_CA(0x0b1, 100), /* electronic volume */
|
|
|
|
|
|
U8X8_END_TRANSFER(), /* disable chip */
|
|
U8X8_END() /* end of sequence */
|
|
};
|
|
|
|
uint8_t u8x8_d_ist7920_128x128(u8x8_t *u8x8, uint8_t msg, uint8_t arg_int, void *arg_ptr)
|
|
{
|
|
uint8_t x, c;
|
|
uint8_t *ptr;
|
|
switch(msg)
|
|
{
|
|
case U8X8_MSG_DISPLAY_SETUP_MEMORY:
|
|
u8x8_d_helper_display_setup_memory(u8x8, &u8x8_ist7920_128x128_display_info);
|
|
break;
|
|
case U8X8_MSG_DISPLAY_INIT:
|
|
u8x8_d_helper_display_init(u8x8);
|
|
u8x8_cad_SendSequence(u8x8, u8x8_d_ist7920_128x128_init_seq);
|
|
break;
|
|
case U8X8_MSG_DISPLAY_SET_POWER_SAVE:
|
|
if ( arg_int == 0 )
|
|
u8x8_cad_SendSequence(u8x8, u8x8_d_ist7920_128x128_powersave0_seq);
|
|
else
|
|
u8x8_cad_SendSequence(u8x8, u8x8_d_ist7920_128x128_powersave1_seq);
|
|
break;
|
|
case U8X8_MSG_DISPLAY_SET_FLIP_MODE:
|
|
if ( arg_int == 0 )
|
|
{
|
|
u8x8_cad_SendSequence(u8x8, u8x8_d_ist7920_128x128_flip0_seq);
|
|
u8x8->x_offset = u8x8->display_info->default_x_offset;
|
|
}
|
|
else
|
|
{
|
|
u8x8_cad_SendSequence(u8x8, u8x8_d_ist7920_128x128_flip1_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, 0x0b1 );
|
|
u8x8_cad_SendArg(u8x8, arg_int ); /* st7920 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, 0x0c0 );
|
|
u8x8_cad_SendArg(u8x8, x );
|
|
u8x8_cad_SendCmd(u8x8, 0x001 );
|
|
u8x8_cad_SendArg(u8x8, (((u8x8_tile_t *)arg_ptr)->y_pos) );
|
|
|
|
c = ((u8x8_tile_t *)arg_ptr)->cnt;
|
|
c *= 8;
|
|
ptr = ((u8x8_tile_t *)arg_ptr)->tile_ptr;
|
|
do
|
|
{
|
|
u8x8_cad_SendData(u8x8, c, 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;
|
|
}
|
|
|
|
|