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/**
* Marlin 3D Printer Firmware
* Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
*
* Based on Sprinter and grbl.
* Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*
*/
// NOTE - the HAL version of the rrd device uses a generic ST7920 device. See the
// file u8g_dev_st7920_128x64_HAL.cpp for the HAL version.
#include "../../inc/MarlinConfigPre.h"
#if !defined(U8G_HAL_LINKS) && ANY(__AVR__, ARDUINO_ARCH_STM32, ARDUINO_ARCH_ESP32)
#include "../../inc/MarlinConfig.h"
#if ENABLED(U8GLIB_ST7920)
#include "ultralcd_st7920_u8glib_rrd_AVR.h"
#if F_CPU >= 20000000
#define CPU_ST7920_DELAY_1 DELAY_NS(0)
#define CPU_ST7920_DELAY_2 DELAY_NS(0)
#define CPU_ST7920_DELAY_3 DELAY_NS(50)
#elif MB(3DRAG, K8200, K8400)
#define CPU_ST7920_DELAY_1 DELAY_NS(0)
#define CPU_ST7920_DELAY_2 DELAY_NS(188)
#define CPU_ST7920_DELAY_3 DELAY_NS(0)
#elif MB(MINIRAMBO, EINSY_RAMBO, EINSY_RETRO, SILVER_GATE)
#define CPU_ST7920_DELAY_1 DELAY_NS(0)
#define CPU_ST7920_DELAY_2 DELAY_NS(250)
#define CPU_ST7920_DELAY_3 DELAY_NS(0)
#elif MB(RAMBO)
#define CPU_ST7920_DELAY_1 DELAY_NS(0)
#define CPU_ST7920_DELAY_2 DELAY_NS(0)
#define CPU_ST7920_DELAY_3 DELAY_NS(0)
#elif MB(BQ_ZUM_MEGA_3D)
#define CPU_ST7920_DELAY_1 DELAY_NS(0)
#define CPU_ST7920_DELAY_2 DELAY_NS(0)
#define CPU_ST7920_DELAY_3 DELAY_NS(189)
#elif defined(ARDUINO_ARCH_STM32)
#define CPU_ST7920_DELAY_1 DELAY_NS(300)
#define CPU_ST7920_DELAY_2 DELAY_NS(40)
#define CPU_ST7920_DELAY_3 DELAY_NS(340)
#elif F_CPU == 16000000
#define CPU_ST7920_DELAY_1 DELAY_NS(0)
#define CPU_ST7920_DELAY_2 DELAY_NS(0)
#define CPU_ST7920_DELAY_3 DELAY_NS(63)
#else
#error "No valid condition for delays in 'ultralcd_st7920_u8glib_rrd_AVR.h'"
#endif
#ifndef ST7920_DELAY_1
#ifdef BOARD_ST7920_DELAY_1
#define ST7920_DELAY_1 BOARD_ST7920_DELAY_1
#else
#define ST7920_DELAY_1 CPU_ST7920_DELAY_1
#endif
#endif
#ifndef ST7920_DELAY_2
#ifdef BOARD_ST7920_DELAY_2
#define ST7920_DELAY_2 BOARD_ST7920_DELAY_2
#else
#define ST7920_DELAY_2 CPU_ST7920_DELAY_2
#endif
#endif
#ifndef ST7920_DELAY_3
#ifdef BOARD_ST7920_DELAY_3
#define ST7920_DELAY_3 BOARD_ST7920_DELAY_3
#else
#define ST7920_DELAY_3 CPU_ST7920_DELAY_3
#endif
#endif
// Optimize this code with -O3
#pragma GCC optimize (3)
#ifdef ARDUINO_ARCH_STM32F1
#define ST7920_DAT(V) !!((V) & 0x80)
#else
#define ST7920_DAT(V) ((V) & 0x80)
#endif
#define ST7920_SND_BIT do{ \
WRITE(ST7920_CLK_PIN, LOW); ST7920_DELAY_1; \
WRITE(ST7920_DAT_PIN, ST7920_DAT(val)); ST7920_DELAY_2; \
WRITE(ST7920_CLK_PIN, HIGH); ST7920_DELAY_3; \
val <<= 1; }while(0)
// Optimize this code with -O3
#pragma GCC optimize (3)
void ST7920_SWSPI_SND_8BIT(uint8_t val) {
ST7920_SND_BIT; // 1
ST7920_SND_BIT; // 2
ST7920_SND_BIT; // 3
ST7920_SND_BIT; // 4
ST7920_SND_BIT; // 5
ST7920_SND_BIT; // 6
ST7920_SND_BIT; // 7
ST7920_SND_BIT; // 8
}
uint8_t u8g_dev_rrd_st7920_128x64_fn(u8g_t *u8g, u8g_dev_t *dev, uint8_t msg, void *arg) {
uint8_t i, y;
switch (msg) {
case U8G_DEV_MSG_INIT: {
OUT_WRITE(ST7920_CS_PIN, LOW);
OUT_WRITE(ST7920_DAT_PIN, LOW);
OUT_WRITE(ST7920_CLK_PIN, HIGH);
ST7920_CS();
u8g_Delay(120); // Initial delay for boot up
ST7920_SET_CMD();
ST7920_WRITE_BYTE(0x20); // Non-extended mode
ST7920_WRITE_BYTE(0x08); // Display off, cursor+blink off
ST7920_WRITE_BYTE(0x01); // Clear DDRAM ram
u8g_Delay(15); // Delay for DDRAM clear
ST7920_WRITE_BYTE(0x24); // Extended mode
ST7920_WRITE_BYTE(0x26); // Extended mode + GDRAM active
for (y = 0; y < (LCD_PIXEL_HEIGHT) / 2; y++) { // Clear GDRAM
ST7920_WRITE_BYTE(0x80 | y); // Set y
ST7920_WRITE_BYTE(0x80); // Set x = 0
ST7920_SET_DAT();
for (i = 0; i < 2 * (LCD_PIXEL_WIDTH) / 8; i++) // 2x width clears both segments
ST7920_WRITE_BYTE(0);
ST7920_SET_CMD();
}
ST7920_WRITE_BYTE(0x0C); // Display on, cursor+blink off
ST7920_NCS();
}
break;
case U8G_DEV_MSG_STOP: break;
case U8G_DEV_MSG_PAGE_NEXT: {
uint8_t* ptr;
u8g_pb_t* pb = (u8g_pb_t*)(dev->dev_mem);
y = pb->p.page_y0;
ptr = (uint8_t*)pb->buf;
ST7920_CS();
for (i = 0; i < PAGE_HEIGHT; i ++) {
ST7920_SET_CMD();
if (y < 32) {
ST7920_WRITE_BYTE(0x80 | y); // y
ST7920_WRITE_BYTE(0x80); // x = 0
}
else {
ST7920_WRITE_BYTE(0x80 | (y - 32)); // y
ST7920_WRITE_BYTE(0x80 | 8); // x = 64
}
ST7920_SET_DAT();
ST7920_WRITE_BYTES(ptr, (LCD_PIXEL_WIDTH) / 8); // ptr incremented inside of macro!
y++;
}
ST7920_NCS();
}
break;
}
#if PAGE_HEIGHT == 8
return u8g_dev_pb8h1_base_fn(u8g, dev, msg, arg);
#elif PAGE_HEIGHT == 16
return u8g_dev_pb16h1_base_fn(u8g, dev, msg, arg);
#else
return u8g_dev_pb32h1_base_fn(u8g, dev, msg, arg);
#endif
}
uint8_t u8g_dev_st7920_128x64_rrd_buf[(LCD_PIXEL_WIDTH) * (PAGE_HEIGHT) / 8] U8G_NOCOMMON;
u8g_pb_t u8g_dev_st7920_128x64_rrd_pb = { { PAGE_HEIGHT, LCD_PIXEL_HEIGHT, 0, 0, 0 }, LCD_PIXEL_WIDTH, u8g_dev_st7920_128x64_rrd_buf };
u8g_dev_t u8g_dev_st7920_128x64_rrd_sw_spi = { u8g_dev_rrd_st7920_128x64_fn, &u8g_dev_st7920_128x64_rrd_pb, &u8g_com_null_fn };
#pragma GCC reset_options
#if ENABLED(LIGHTWEIGHT_UI)
#include "../../HAL/shared/HAL_ST7920.h"
void ST7920_cs() { ST7920_CS(); }
void ST7920_ncs() { ST7920_NCS(); }
void ST7920_set_cmd() { ST7920_SET_CMD(); }
void ST7920_set_dat() { ST7920_SET_DAT(); }
void ST7920_write_byte(const uint8_t val) { ST7920_WRITE_BYTE(val); }
#endif
#endif // U8GLIB_ST7920
#endif // !U8G_HAL_LINKS && (__AVR__ || ARDUINO_ARCH_STM32 || ARDUINO_ARCH_ESP32)
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