Firmware2/Marlin/src/lcd/dogm/ultralcd_st7920_u8glib_rrd_AVR.cpp
etagle 9d98a62699 Followup to HAL optimizations and delays
- Cleanups, fixes for Due HAL code.
- TC_IER is write-only. Use TC_IMR to test ISR state.
2018-05-13 00:46:23 -05:00

199 lines
6.6 KiB
C++

/**
* Marlin 3D Printer Firmware
* Copyright (C) 2016 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 <http://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/MarlinConfig.h"
#include "../../HAL/Delay.h"
#if ENABLED(U8GLIB_ST7920)
#if !(defined(U8G_HAL_LINKS) || defined(__SAM3X8E__))
#define ST7920_CLK_PIN LCD_PINS_D4
#define ST7920_DAT_PIN LCD_PINS_ENABLE
#define ST7920_CS_PIN LCD_PINS_RS
//#define PAGE_HEIGHT 8 //128 byte framebuffer
#define PAGE_HEIGHT 16 //256 byte framebuffer
//#define PAGE_HEIGHT 32 //512 byte framebuffer
#define LCD_PIXEL_WIDTH 128
#define LCD_PIXEL_HEIGHT 64
#include <U8glib.h>
//set optimization so ARDUINO optimizes this file
#pragma GCC optimize (3)
// If you want you can define your own set of delays in Configuration.h
//#define ST7920_DELAY_1 DELAY_NS(0)
//#define ST7920_DELAY_2 DELAY_NS(0)
//#define ST7920_DELAY_3 DELAY_NS(0)
#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) || MB(K8200) || MB(K8400) || MB(SILVER_GATE)
#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)
#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 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.h'"
#endif
#ifndef ST7920_DELAY_1
#define ST7920_DELAY_1 CPU_ST7920_DELAY_1
#endif
#ifndef ST7920_DELAY_2
#define ST7920_DELAY_2 CPU_ST7920_DELAY_2
#endif
#ifndef ST7920_DELAY_3
#define ST7920_DELAY_3 CPU_ST7920_DELAY_3
#endif
#define ST7920_SND_BIT \
WRITE(ST7920_CLK_PIN, LOW); ST7920_DELAY_1; \
WRITE(ST7920_DAT_PIN, val & 0x80); ST7920_DELAY_2; \
WRITE(ST7920_CLK_PIN, HIGH); ST7920_DELAY_3; \
val <<= 1
static 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
}
#if DOGM_SPI_DELAY_US > 0
#define U8G_DELAY() DELAY_US(DOGM_SPI_DELAY_US)
#else
#define U8G_DELAY() DELAY_US(10)
#endif
#define ST7920_CS() { WRITE(ST7920_CS_PIN,1); U8G_DELAY(); }
#define ST7920_NCS() { WRITE(ST7920_CS_PIN,0); }
#define ST7920_SET_CMD() { ST7920_SWSPI_SND_8BIT(0xF8); U8G_DELAY(); }
#define ST7920_SET_DAT() { ST7920_SWSPI_SND_8BIT(0xFA); U8G_DELAY(); }
#define ST7920_WRITE_BYTE(a) { ST7920_SWSPI_SND_8BIT((uint8_t)((a)&0xF0u)); ST7920_SWSPI_SND_8BIT((uint8_t)((a)<<4u)); U8G_DELAY(); }
#define ST7920_WRITE_BYTES(p,l) { for (uint8_t i = l + 1; --i;) { ST7920_SWSPI_SND_8BIT(*p&0xF0); ST7920_SWSPI_SND_8BIT(*p<<4); p++; } U8G_DELAY(); }
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 is 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};
#if ENABLED(LIGHTWEIGHT_UI)
// We have to include the code for the lightweight UI here
// as it relies on macros that are only defined in this file.
#include "status_screen_lite_ST7920_spi.h"
#endif
#pragma GCC reset_options
#endif // U8G_HAL_LINKS
#endif // U8GLIB_ST7920