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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"
-
- #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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