diff --git a/Marlin/src/lcd/dogm/ultralcd_impl_st7920_lite_status_screen.h b/Marlin/src/lcd/dogm/ultralcd_impl_st7920_lite_status_screen.h new file mode 100644 index 0000000000..19c3564261 --- /dev/null +++ b/Marlin/src/lcd/dogm/ultralcd_impl_st7920_lite_status_screen.h @@ -0,0 +1,247 @@ +/* + * Lightweight Status Screen for the RepRapDiscount Full + * Graphics Smart Controller (ST7920-based 128x64 LCD) + * + * (c) 2017 Aleph Objects, Inc. + * + * The code in this page is free software: you can + * redistribute it and/or modify it under the terms of the GNU + * General Public License (GNU GPL) as published by the Free Software + * Foundation, either version 3 of the License, or (at your option) + * any later version. The code is distributed WITHOUT ANY WARRANTY; + * without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU GPL for more details. + * + */ + +#ifndef ULTRALCD_ST7920_LITE_STATUS_H +#define ULTRALCD_ST7920_LITE_STATUS_H + +class ST7920_Lite_Status_Screen { + private: + static struct st7920_state_t { + uint8_t synced : 1; // Whether a sync has been sent + uint8_t cmd : 1; // Whether the sync was cmd or data + uint8_t extended : 1; + uint8_t graphics : 1; + uint8_t sa : 1; + } current_bits; + + static void cs(); + static void ncs(); + static void sync_cmd(); + static void sync_dat(); + static void write_byte(uint8_t w); + + static void cmd(uint8_t cmd); + static void begin_data(); + static void write_word(uint16_t w); + static void write_str(const char *str); + static void write_str(const char *str, uint8_t len); + static void write_str_P(const char *str); + static void write_str(progmem_str str); + static void write_number(uint8_t value, uint8_t digits=3); + + static void _extended_function_set(bool extended, bool graphics); + static void _scroll_or_addr_select(bool sa); + static void reset_state_from_unknown(); + + static void home(); + static void display_status(bool display_on, bool cursor_on, bool blink_on); + static void extended_function_set(bool extended); + static void graphics(bool graphics); + static void entry_mode_select(bool ac_increase, bool shift); + static void scroll_or_addr_select(bool sa); + static void set_ddram_address(uint8_t addr); + static void set_cgram_address(uint8_t addr); + static void set_gdram_address(uint8_t x, uint8_t y); + + static void clear(); + static void clear_ddram(); + static void clear_gdram(); + + static void load_cgram_icon(uint16_t addr, const void *data); + static void draw_gdram_icon(uint8_t x, uint8_t y, const void *data); + + static uint8_t string_checksum(const char *str); + + protected: + static void draw_static_elements(); + static void draw_progress_bar(uint8_t value); + static void draw_fan_icon(bool whichIcon); + static void draw_heat_icon(bool whichIcon, bool heating); + static void draw_extruder_1_temp(uint8_t temp, uint8_t target); + static void draw_extruder_2_temp(uint8_t temp, uint8_t target); + static void draw_bed_temp(uint8_t temp, uint8_t target); + static void draw_fan_speed(uint8_t value); + static void draw_print_time(uint32_t elapsed); + static void draw_feedrate_percentage(uint8_t percentage); + static void draw_status_message(const unsigned char *str); + static void draw_position(const float x, const float y, const float z, bool position_known = true); + + static bool indicators_changed(); + static bool position_changed(); + static bool blink_changed(); + static bool status_changed(); + + static void update_indicators(bool forceUpdate); + static void update_position(bool forceUpdate, bool resetChecksum); + static void update_status_or_position(bool forceUpdate); + static void update_progress(bool forceUpdate); + + public: + static void update(bool forceUpdate); + static void on_entry(); + static void on_exit(); + static void clear_text_buffer(); +}; + +/************************** ICON DEFINITIONS *************************************/ + +#define CGRAM_ICON_1_ADDR 0x00 +#define CGRAM_ICON_2_ADDR 0x10 +#define CGRAM_ICON_3_ADDR 0x20 +#define CGRAM_ICON_4_ADDR 0x30 + +#define CGRAM_ICON_1_WORD 0x00 +#define CGRAM_ICON_2_WORD 0x02 +#define CGRAM_ICON_3_WORD 0x04 +#define CGRAM_ICON_4_WORD 0x06 + +PROGMEM const uint16_t nozzle_icon[] = { + 0b0000000000000000, + 0b0000000000000000, + 0b0000111111110000, + 0b0001111111111000, + 0b0001111111111000, + 0b0001111111111000, + 0b0000111111110000, + 0b0000111111110000, + 0b0001111111111000, + 0b0001111111111000, + 0b0001111111111000, + 0b0000011111100000, + 0b0000001111000000, + 0b0000000110000000, + 0b0000000000000000, + 0b0000000000000000 +}; + +PROGMEM const uint16_t bed_icon[] = { + 0b0000000000000000, + 0b0000000000000000, + 0b0000000000000000, + 0b0000000000000000, + 0b0000000000000000, + 0b0000000000000000, + 0b0000000000000000, + 0b0000000000000000, + 0b0000000000000000, + 0b0000000000000000, + 0b0000000000000000, + 0b0000000000000000, + 0b0111111111111110, + 0b0111111111111110, + 0b0000000000000000, + 0b0000000000000000 +}; + +PROGMEM const uint16_t heat1_icon[] = { + 0b0000000000000000, + 0b0000000000000000, + 0b0010001000100000, + 0b0001000100010000, + 0b0000100010001000, + 0b0000100010001000, + 0b0001000100010000, + 0b0010001000100000, + 0b0010001000100000, + 0b0001000100010000, + 0b0000100010001000, + 0b0000000000000000, + 0b0000000000000000, + 0b0000000000000000, + 0b0000000000000000, + 0b0000000000000000 +}; + +PROGMEM const uint16_t heat2_icon[] = { + 0b0000000000000000, + 0b0000000000000000, + 0b0000100010001000, + 0b0000100010001000, + 0b0001000100010000, + 0b0010001000100000, + 0b0010001000100000, + 0b0001000100010000, + 0b0000100010001000, + 0b0000100010001000, + 0b0001000100010000, + 0b0000000000000000, + 0b0000000000000000, + 0b0000000000000000, + 0b0000000000000000, + 0b0000000000000000 +}; + +PROGMEM const uint16_t fan1_icon[] = { + 0b0000000000000000, + 0b0111111111111110, + 0b0111000000001110, + 0b0110001111000110, + 0b0100001111000010, + 0b0100000110000010, + 0b0101100000011010, + 0b0101110110111010, + 0b0101100000011010, + 0b0100000110000010, + 0b0100001111000010, + 0b0110001111000110, + 0b0111000000001110, + 0b0111111111111110, + 0b0000000000000000, + 0b0000000000000000 +}; + +PROGMEM const uint16_t fan2_icon[] = { + 0b0000000000000000, + 0b0111111111111110, + 0b0111000000001110, + 0b0110010000100110, + 0b0100111001110010, + 0b0101111001111010, + 0b0100110000110010, + 0b0100000110000010, + 0b0100110000110010, + 0b0101111001111010, + 0b0100111001110010, + 0b0110010000100110, + 0b0111000000001110, + 0b0111111111111110, + 0b0000000000000000, + 0b0000000000000000 +}; + +PROGMEM const uint16_t feedrate_icon[] = { + 0b0000000000000000, + 0b0111111000000000, + 0b0100000000000000, + 0b0100000000000000, + 0b0100000000000000, + 0b0111111011111000, + 0b0100000010000100, + 0b0100000010000100, + 0b0100000010000100, + 0b0100000011111000, + 0b0000000010001000, + 0b0000000010000100, + 0b0000000010000100, + 0b0000000010000010, + 0b0000000000000000, + 0b0000000000000000 +}; + +static void lcd_implementation_status_screen(); +static void lcd_in_status(bool inStatus); + +#endif // ULTRALCD_ST7920_LITE_STATUS_H \ No newline at end of file diff --git a/Marlin/src/lcd/dogm/ultralcd_impl_st7920_lite_status_screen_impl.h b/Marlin/src/lcd/dogm/ultralcd_impl_st7920_lite_status_screen_impl.h new file mode 100644 index 0000000000..3a90ee1835 --- /dev/null +++ b/Marlin/src/lcd/dogm/ultralcd_impl_st7920_lite_status_screen_impl.h @@ -0,0 +1,757 @@ +/* + * Lightweight Status Screen for the RepRapDiscount Full + * Graphics Smart Controller (ST7920-based 128x64 LCD) + * + * (c) 2017 Aleph Objects, Inc. + * + * The code in this page is free software: you can + * redistribute it and/or modify it under the terms of the GNU + * General Public License (GNU GPL) as published by the Free Software + * Foundation, either version 3 of the License, or (at your option) + * any later version. The code is distributed WITHOUT ANY WARRANTY; + * without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU GPL for more details. + * + */ + + /* This is an implementation of a status screen for the RepRapDiscount + * Full Graphics Smart Controller using native ST7920 commands rather + * than using U8Glib. + * + * This alternative status screen makes use of the built-in character + * generation capabilities of the ST7920 to update the status screen + * with less SPI traffic and CPU use. In particular: + * + * - The fan and bed animations are handled using custom characters + * that are stored in CGRAM. This allows for the animation to be + * updated by writing a single character to the text-buffer (DDRAM). + * + * - All the information in the status screen is text that is written + * to DDRAM, so the work of generating the bitmaps is offloaded to + * the ST7920 rather than being render by U8Glib on the MCU. + * + * - The graphics buffer (GDRAM) is only used for static graphics + * elements (nozzle and feedrate bitmaps) and for the progress + * bar, so updates are sporadic. + */ + +#include "../../libs/duration_t.h" + +typedef const __FlashStringHelper *progmem_str; + +#include "ultralcd_impl_st7920_lite_status_screen.h" + +#define BUFFER_WIDTH 256 +#define BUFFER_HEIGHT 32 + +#define DDRAM_LINE_1 0x00 +#define DDRAM_LINE_2 0x10 +#define DDRAM_LINE_3 0x08 +#define DDRAM_LINE_4 0x18 + +ST7920_Lite_Status_Screen::st7920_state_t ST7920_Lite_Status_Screen::current_bits; + +void ST7920_Lite_Status_Screen::cmd(uint8_t cmd) { + if(!current_bits.synced || !current_bits.cmd) { + current_bits.synced = true; + current_bits.cmd = true; + sync_cmd(); + } + write_byte(cmd); +} + +void ST7920_Lite_Status_Screen::begin_data() { + extended_function_set(false); + if(!current_bits.synced || current_bits.cmd) { + current_bits.synced = true; + current_bits.cmd = false; + sync_dat(); + } +} + +void ST7920_Lite_Status_Screen::write_word(uint16_t w) { + write_byte((w >> 8) & 0xFF); + write_byte((w >> 0) & 0xFF); +} + +void ST7920_Lite_Status_Screen::write_str(const char *str) { + while(*str) { + write_byte(*str++); + } +} + +void ST7920_Lite_Status_Screen::write_str(const char *str, uint8_t len) { + while(*str && len--) { + write_byte(*str++); + } +} + +void ST7920_Lite_Status_Screen::write_str_P(const char *str) { + const char *p_str = (const char *)str; + char c = pgm_read_byte_near(p_str++); + while(c) { + write_byte(c); + c = pgm_read_byte_near(p_str++); + } +} + +void ST7920_Lite_Status_Screen::write_str(progmem_str str) { + write_str_P((const char*)str); +} + +void ST7920_Lite_Status_Screen::write_number(uint8_t value, uint8_t digits=3) { + char str[7]; + const char *fmt; + switch(digits) { + case 6: fmt = PSTR("%6d"); break; + case 5: fmt = PSTR("%5d"); break; + case 4: fmt = PSTR("%4d"); break; + case 3: fmt = PSTR("%3d"); break; + case 2: fmt = PSTR("%2d"); break; + case 1: fmt = PSTR("%1d"); break; + } + sprintf_P(str,fmt,value); + write_str(str); +} + +void ST7920_Lite_Status_Screen::display_status(bool display_on, bool cursor_on, bool blink_on) { + extended_function_set(false); + cmd(0b00001000 | + (display_on ? 0b0100 : 0) | + (cursor_on ? 0b0010 : 0) | + (blink_on ? 0b0001 : 0) + ); +} + +// Sets the extended and graphics bits simultaneously, regardless of +// the current state. This is a helper function for extended_function_set() +// and graphics() +void ST7920_Lite_Status_Screen::_extended_function_set(bool extended, bool graphics) { + cmd( 0b00100000 | + (extended ? 0b00000100 : 0) | + (graphics ? 0b00000010 : 0) + ); + current_bits.extended = extended; + current_bits.graphics = graphics; +} + +void ST7920_Lite_Status_Screen::extended_function_set(bool extended) { + if(extended != current_bits.extended) { + _extended_function_set(extended, current_bits.graphics); + } +} + +void ST7920_Lite_Status_Screen::graphics(bool graphics) { + if(graphics != current_bits.graphics) { + _extended_function_set(current_bits.extended, graphics); + } +} + +void ST7920_Lite_Status_Screen::entry_mode_select(bool ac_increase, bool shift) { + extended_function_set(false); + cmd(0b00000100 | + (ac_increase ? 0b00000010 : 0) | + (shift ? 0b00000001 : 0) + ); +} + +// Sets the sa bit regardless of the current state. This is a helper +// function for scroll_or_addr_select() +void ST7920_Lite_Status_Screen::_scroll_or_addr_select(bool sa) { + extended_function_set(true); + cmd(0b00100010 | + (sa ? 0b000001 : 0) + ); + current_bits.sa = sa; +} + +void ST7920_Lite_Status_Screen::scroll_or_addr_select(bool sa) { + if(sa != current_bits.sa) { + _scroll_or_addr_select(sa); + } +} + +void ST7920_Lite_Status_Screen::set_ddram_address(uint8_t addr) { + extended_function_set(false); + cmd(0b10000000 | (addr & 0b00111111)); +} + +void ST7920_Lite_Status_Screen::set_cgram_address(uint8_t addr) { + extended_function_set(false); + cmd(0b01000000 | (addr & 0b00111111)); +} + +void ST7920_Lite_Status_Screen::set_gdram_address(uint8_t x, uint8_t y) { + extended_function_set(true); + cmd(0b10000000 | (y & 0b01111111)); + cmd(0b10000000 | (x & 0b00001111)); +} + +void ST7920_Lite_Status_Screen::clear() { + extended_function_set(false); + cmd(0x00000001); + delay(15); //delay for CGRAM clear +} + +void ST7920_Lite_Status_Screen::home() { + extended_function_set(false); + cmd(0x00000010); +} + +/* This fills the entire text buffer with spaces */ +void ST7920_Lite_Status_Screen::clear_ddram() +{ + set_ddram_address(DDRAM_LINE_1); + begin_data(); + for(int i=0; i < 64;i++) { + write_byte(' '); + } +} + +/* This fills the entire graphics buffer with zeros */ +void ST7920_Lite_Status_Screen::clear_gdram() +{ + for(int y = 0; y < BUFFER_HEIGHT; y++) { + set_gdram_address(0,y); + begin_data(); + for(int i = 0; i < (BUFFER_WIDTH / 16); i++) { + write_byte(0); + write_byte(0); + } + } +} + +void ST7920_Lite_Status_Screen::load_cgram_icon(uint16_t addr, const void *data) { + const uint16_t *p_word = (const uint16_t *)data; + set_cgram_address(addr); + begin_data(); + for(int i = 0; i < 16; i++) { + uint16_t word = pgm_read_word_near(p_word++); + write_byte((word & 0xFF00) >> 8); + write_byte((word & 0x00FF) >> 0); + } +} + +/* Draws an icon in GDRAM. The position is specified in + as if they were DDRAM coordinates, i.e. the x position + is [1-8], while the y position is [1-4] */ +void ST7920_Lite_Status_Screen::draw_gdram_icon(uint8_t x, uint8_t y, const void *data) { + const uint16_t *p_word = (const uint16_t *)data; + if(y > 2) { + // Handle display folding + y -= 2; + x += 8; + } + x -= 1; + y -= 1; + for(int i = 0; i < 16; i++) { + uint16_t word = pgm_read_word_near(p_word++); + set_gdram_address(x,i+y*16); + begin_data(); + write_byte((word & 0xFF00) >> 8); + write_byte((word & 0x00FF) >> 0); + } +} + +/************************** MAIN SCREEN *************************************/ + +void ST7920_Lite_Status_Screen::draw_static_elements() { + scroll_or_addr_select(0); + + // Load the animated bed and fan icons + load_cgram_icon(CGRAM_ICON_1_ADDR, heat1_icon); + load_cgram_icon(CGRAM_ICON_2_ADDR, heat2_icon); + load_cgram_icon(CGRAM_ICON_3_ADDR, fan1_icon); + load_cgram_icon(CGRAM_ICON_4_ADDR, fan2_icon); + + // Draw the static icons in GDRAM + draw_gdram_icon(1,1,nozzle_icon); + #if EXTRUDERS == 2 + draw_gdram_icon(1,2,nozzle_icon); + #endif + draw_gdram_icon(6,2,feedrate_icon); + draw_gdram_icon(1,2,bed_icon); + + // Draw the initial fan icon + draw_fan_icon(false); +} + +/* Although this is undocumented, the ST7920 allows the character + * data buffer (DDRAM) to be used in conjunction with the graphics + * bitmap buffer (CGRAM). The contents of the graphics buffer is + * XORed with the data from the character generator. This allows + * us to make the progess bar out of graphical data (the bar) and + * text data (the percentage). + */ +void ST7920_Lite_Status_Screen::draw_progress_bar(uint8_t value) { + #if EXTRUDERS == 1 + // If we have only one extruder, draw a long progress bar on the third line + const int top = 1; // Top in pixels + const int bottom = 13; // Bottom in pixels + const int left = 8; // Left edge, in 16-bit words + const int width = 5; // Width of progress bar, in 16-bit words + #else + const int top = 16 + 1; // Top in pixels + const int bottom = 16 + 13; // Bottom in pixels + const int left = 5; // Left edge, in 16-bit words + const int width = 3; // Width of progress bar, in 16-bit words + #endif + const int char_pcnt = 100/width; // How many percent does each 16-bit word represent? + + // Draw the progress bar as a bitmap in CGRAM + + for(int y = top; y <= bottom; y++) { + set_gdram_address(left,y); + begin_data(); + for(int x = 0; x < width; x++) { + uint16_t gfx_word = 0x0000; + if((x+1)*char_pcnt <= value) { + // Draw completely filled bytes + gfx_word = 0xFFFF; + } else if((x*char_pcnt) < value) { + // Draw partially filled bytes + gfx_word = int(0x8000) >> (value % char_pcnt)*16/char_pcnt; + } + // Draw the frame around the progress bar + if(y == top || y == bottom) { + // Draw top/bottom border + gfx_word = 0xFFFF; + } else if (x == (width-1)) { + // Draw right border + gfx_word |= 0x0001; + } else if (x == 0) { + // Draw left border + gfx_word |= 0x8000; + } + write_word(gfx_word); + } + } + + // Draw the percentage as text in DDRAM + + #if EXTRUDERS == 1 + set_ddram_address(DDRAM_LINE_3 + 1); + #else + set_ddram_address(DDRAM_LINE_2 + left); + #endif + + begin_data(); + if(value > 9) { + write_number(value,4); + write_str(F("% ")); + } else { + write_number(value,3); + write_str(F("% ")); + } +} + +void ST7920_Lite_Status_Screen::draw_fan_icon(bool whichIcon) { + set_ddram_address(DDRAM_LINE_1+5); + begin_data(); + write_word(whichIcon ? CGRAM_ICON_3_WORD : CGRAM_ICON_4_WORD); +} + +void ST7920_Lite_Status_Screen::draw_heat_icon(bool whichIcon, bool heating) { + #if EXTRUDERS == 1 + set_ddram_address(DDRAM_LINE_2); + #else + set_ddram_address(DDRAM_LINE_3); + #endif + begin_data(); + if(heating) { + write_word(whichIcon ? CGRAM_ICON_1_WORD : CGRAM_ICON_2_WORD); + } else { + write_byte(' '); + write_byte(' '); + } +} + +#define FAR(a,b) (((a > b) ? (a-b) : (b-a)) > 1) + +void ST7920_Lite_Status_Screen::draw_extruder_1_temp(uint8_t temp, uint8_t target) { + set_ddram_address(DDRAM_LINE_1+1); + begin_data(); + write_number(temp); + if(target && FAR(temp, target)) { + write_str(F("\x1A")); + write_number(target); + } else { + write_str(F(" ")); + } +} + +void ST7920_Lite_Status_Screen::draw_extruder_2_temp(uint8_t temp, uint8_t target) { + set_ddram_address(DDRAM_LINE_2+1); + begin_data(); + write_number(temp); + if(target && FAR(temp, target)) { + write_str(F("\x1A")); + write_number(target); + } else { + write_str(F(" ")); + } +} + +void ST7920_Lite_Status_Screen::draw_bed_temp(uint8_t temp, uint8_t target) { + #if EXTRUDERS == 1 + set_ddram_address(DDRAM_LINE_2+1); + #else + set_ddram_address(DDRAM_LINE_3+1); + #endif + begin_data(); + write_number(temp); + if(target && FAR(temp, target)) { + write_str(F("\x1A")); + write_number(target); + } else { + write_str(F(" ")); + } +} + +void ST7920_Lite_Status_Screen::draw_fan_speed(uint8_t value) { + set_ddram_address(DDRAM_LINE_1+6); + begin_data(); + write_number(value,4); +} + +void ST7920_Lite_Status_Screen::draw_print_time(uint32_t elapsed) { + const uint8_t hrs = elapsed/3600; + const uint8_t min = (elapsed/60)%60; + char str[7]; + sprintf_P(str,hrs > 99 ? PSTR("%03d:%02d") : PSTR(" %02d:%02d"),hrs,min); + + set_ddram_address(DDRAM_LINE_3+5); + begin_data(); + write_str(str); +} + +void ST7920_Lite_Status_Screen::draw_feedrate_percentage(uint8_t percentage) { + // We only have enough room for the feedrate when + // we have one extruder + #if EXTRUDERS == 1 + set_ddram_address(DDRAM_LINE_2+6); + begin_data(); + write_number(percentage,4); + #endif +} + +void ST7920_Lite_Status_Screen::draw_status_message(const unsigned char *str) { + set_ddram_address(DDRAM_LINE_4); + begin_data(); + #if ENABLED(STATUS_MESSAGE_SCROLLING) + const uint8_t lcd_len = 16; + const uint8_t padding = 2; + uint8_t str_len = strlen(str); + + // Trim whitespace at the end of the str, as for some reason + // messages like "Card Inserted" are padded with many spaces + while(str_len > 0 && str[str_len-1] == ' ') { + str_len--; + } + + if(str_len <= lcd_len) { + // It all fits on the LCD without scrolling + write_str(str); + } else { + // Print the message repeatedly until covering the LCD + uint8_t c = status_scroll_pos; + for(uint8_t n = 0; n < lcd_len; n++) { + write_byte(c < str_len ? str[c] : ' '); + c++; + c %= str_len + padding; // Wrap around + } + + // Scroll the message + if(status_scroll_pos == str_len + padding) { + status_scroll_pos = 0; + } else { + status_scroll_pos++; + } + } + #else + write_str(str, 16); + #endif +} + +void ST7920_Lite_Status_Screen::draw_position(const float x, const float y, const float z, bool position_known) { + char str[7]; + set_ddram_address(DDRAM_LINE_4); + begin_data(); + + // If position is unknown, flash the labels. + const unsigned char alt_label = position_known ? 0 : (lcd_blink() ? ' ' : 0); + + dtostrf(x, -4, 0, str); + write_byte(alt_label ? alt_label : 'X'); + write_str(str, 4); + + dtostrf(y, -4, 0, str); + write_byte(alt_label ? alt_label : 'Y'); + write_str(str, 4); + + dtostrf(z, -5, 1, str); + write_byte(alt_label ? alt_label : 'Z'); + write_str(str, 5); +} + +bool ST7920_Lite_Status_Screen::indicators_changed() { + // We only add the target temperatures to the checksum + // because the actual temps fluctuate so by updating + // them only during blinks we gain a bit of stability. + const bool blink = lcd_blink(); + const uint8_t feedrate_perc = feedrate_percentage; + const uint8_t fan_speed = ((fanSpeeds[0] + 1) * 100) / 256; + const float extruder_1_target = thermalManager.degTargetHotend(0); + #if EXTRUDERS == 2 + const float extruder_2_target = thermalManager.degTargetHotend(1); + #endif + const float bed_target = thermalManager.degTargetBed(); + + static uint8_t last_checksum = 0; + + const uint8_t checksum = + uint8_t(blink) ^ + uint8_t(feedrate_perc) ^ + uint8_t(fan_speed) ^ + uint8_t(extruder_1_target) ^ +#if EXTRUDERS == 2 + uint8_t(extruder_2_target) ^ +#endif + uint8_t(bed_target); + + if(last_checksum == checksum) { + return false; + } else { + last_checksum = checksum; + return true; + } +} + +void ST7920_Lite_Status_Screen::update_indicators(bool forceUpdate) { + if(forceUpdate || indicators_changed()) { + const bool blink = lcd_blink(); + const duration_t elapsed = print_job_timer.duration(); + const uint32_t seconds_elapsed = elapsed.value; + const uint8_t feedrate_perc = feedrate_percentage; + const uint8_t fan_speed = ((fanSpeeds[0] + 1) * 100) / 256; + const float extruder_1_temp = thermalManager.degHotend(0); + const float extruder_1_target = thermalManager.degTargetHotend(0); + #if EXTRUDERS == 2 + const float extruder_2_temp = thermalManager.degHotend(1); + const float extruder_2_target = thermalManager.degTargetHotend(1); + #endif + const float bed_temp = thermalManager.degBed(); + const float bed_target = thermalManager.degTargetBed(); + + draw_extruder_1_temp(extruder_1_temp, extruder_1_target); + #if EXTRUDERS == 2 + draw_extruder_2_temp(extruder_2_temp, extruder_2_target); + #endif + draw_bed_temp(bed_temp, bed_target); + draw_fan_speed(fan_speed); + draw_print_time(seconds_elapsed); + draw_feedrate_percentage(feedrate_perc); + + // Update the fan and bed animations + if(fan_speed > 0) { + draw_fan_icon(blink); + } + if(bed_target > 0) { + draw_heat_icon(blink, true); + } else { + draw_heat_icon(false, false); + } + } +} + +bool ST7920_Lite_Status_Screen::position_changed() { + const float x_pos = current_position[X_AXIS]; + const float y_pos = current_position[Y_AXIS]; + const float z_pos = current_position[Z_AXIS]; + const uint8_t checksum = uint8_t(x_pos) ^ uint8_t(y_pos) ^ uint8_t(z_pos); + + static uint8_t last_checksum = 0; + if(last_checksum == checksum) { + return false; + } else { + last_checksum = checksum; + return true; + } +} + +bool ST7920_Lite_Status_Screen::status_changed() { + uint8_t checksum = 0; + for(const char *p = lcd_status_message; *p; p++) { + checksum ^= *p; + } + + static uint8_t last_checksum = 0; + if(last_checksum == checksum) { + return false; + } else { + last_checksum = checksum; + return true; + } +} + +bool ST7920_Lite_Status_Screen::blink_changed() { + static uint8_t last_blink = 0; + + const bool blink = lcd_blink(); + if(last_blink == blink) { + return false; + } else { + last_blink = blink; + return true; + } +} + +void ST7920_Lite_Status_Screen::update_status_or_position(bool forceUpdate) { + static uint8_t countdown = 0; + + /* There is only enough room in the display for either the + * status message or the position, not both, so we choose + * one or another. Whenever the status message changes, + * we show it for a number of consecutive seconds, but + * then go back to showing the position as soon as the + * head moves, i.e: + * + * countdown > 1 -- Show status + * countdown = 1 -- Show status, until movement + * countdown = 0 -- Show position + */ + if( forceUpdate || status_changed() ) { + #if ENABLED(STATUS_MESSAGE_SCROLLING) + status_scroll_pos = 0; + #endif + if(lcd_strlen(lcd_status_message)) { + countdown = DELAY_TO_SHOW_POSITION; + } else { + countdown = 0; + } + draw_status_message(lcd_status_message); + blink_changed(); // Clear changed flag + } + else if(countdown > 1 && blink_changed() ) { + countdown--; + #if ENABLED(STATUS_MESSAGE_SCROLLING) + draw_status_message(lcd_status_message); + #endif + } + else if(countdown > 0 && blink_changed() ) { + if(position_changed()) { + countdown--; + forceUpdate = true; + } + #if ENABLED(STATUS_MESSAGE_SCROLLING) + draw_status_message(lcd_status_message); + #endif + } + if(countdown == 0 && (forceUpdate || position_changed() || + #if DISABLED(DISABLE_REDUCED_ACCURACY_WARNING) + blink_changed() + #endif + )) { + draw_position( + current_position[X_AXIS], + current_position[Y_AXIS], + current_position[Z_AXIS], + #if ENABLED(DISABLE_REDUCED_ACCURACY_WARNING) + true + #else + axis_known_position[X_AXIS] && + axis_known_position[Y_AXIS] && + axis_known_position[Z_AXIS] + #endif + ); + } +} + +void ST7920_Lite_Status_Screen::update_progress(bool forceUpdate) { + #if ENABLED(SDSUPPORT) + const uint8_t percent_done = card.percentDone(); + #else + const uint8_t percent_done = 0; + #endif + + // Since the progress bar involves writing + // quite a few bytes to GDRAM, only do this + // when an update is actually necessary. + + static uint8_t last_progress = 0; + if(!forceUpdate && last_progress == percent_done) + return; + last_progress = percent_done; + + draw_progress_bar(percent_done); +} + +void ST7920_Lite_Status_Screen::update(bool forceUpdate) { + cs(); + update_indicators(forceUpdate); + update_status_or_position(forceUpdate); + update_progress(forceUpdate); + ncs(); +} + +void ST7920_Lite_Status_Screen::reset_state_from_unknown() { + _extended_function_set(true, true); // Do it twice as only one bit + _extended_function_set(true, true); // get set at a time. + _scroll_or_addr_select(false); +} + +void ST7920_Lite_Status_Screen::on_entry() { + cs(); + reset_state_from_unknown(); + clear(); + clear_gdram(); + draw_static_elements(); + update(true); + ncs(); +} + +void ST7920_Lite_Status_Screen::on_exit() { + cs(); + clear(); + _extended_function_set(true, true); // Restore state to what u8g expects. + ncs(); +} + +// This is called prior to the KILL screen to +// clear the screen so we don't end up with a +// garbled display. +void ST7920_Lite_Status_Screen::clear_text_buffer() { + cs(); + reset_state_from_unknown(); + clear(); + _extended_function_set(true, true); // Restore state to what u8g expects. + ncs(); +} + +static void lcd_implementation_status_screen() { + ST7920_Lite_Status_Screen::update(false); +} + +/* In order to properly update the lite status screen, + * we must know when we have entered and left the + * status screen. Since the ultralcd code is not + * set up for doing this, we call this function before + * each update indicating whether the current screen + * is the status screen. + * + * This function keeps track of whether we have left or + * entered the status screen and calls the on_entry() + * and on_exit() methods for cleanup. + */ + +static void lcd_in_status(bool inStatus) { + static bool lastInStatus = false; + if(!lastInStatus && inStatus) { + ST7920_Lite_Status_Screen::on_entry(); + lastInStatus = true; + } + if(lastInStatus && !inStatus) { + ST7920_Lite_Status_Screen::on_exit(); + lastInStatus = false; + } +} \ No newline at end of file diff --git a/Marlin/src/lcd/dogm/ultralcd_impl_st7920_lite_status_screen_impl_spi.h b/Marlin/src/lcd/dogm/ultralcd_impl_st7920_lite_status_screen_impl_spi.h new file mode 100644 index 0000000000..1a0a33be4a --- /dev/null +++ b/Marlin/src/lcd/dogm/ultralcd_impl_st7920_lite_status_screen_impl_spi.h @@ -0,0 +1,39 @@ +/* + * Lightweight Status Screen for the RepRapDiscount Full + * Graphics Smart Controller (ST7920-based 128x64 LCD) + * + * (c) 2017 Aleph Objects, Inc. + * + * The code in this page is free software: you can + * redistribute it and/or modify it under the terms of the GNU + * General Public License (GNU GPL) as published by the Free Software + * Foundation, either version 3 of the License, or (at your option) + * any later version. The code is distributed WITHOUT ANY WARRANTY; + * without even the implied warranty of MERCHANTABILITY or FITNESS + * FOR A PARTICULAR PURPOSE. See the GNU GPL for more details. + * + */ + +#include "ultralcd_impl_st7920_lite_status_screen.h" + +void ST7920_Lite_Status_Screen::cs() { + ST7920_CS(); + current_bits.synced = false; +} + +void ST7920_Lite_Status_Screen::ncs() { + ST7920_NCS(); + current_bits.synced = false; +} + +void ST7920_Lite_Status_Screen::sync_cmd() { + ST7920_SET_CMD(); +} + +void ST7920_Lite_Status_Screen::sync_dat() { + ST7920_SET_DAT(); +} + +void ST7920_Lite_Status_Screen::write_byte(uint8_t data) { + ST7920_WRITE_NIBBLES(data); +} \ No newline at end of file