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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 <http://www.gnu.org/licenses/>.
- *
- */
- #pragma once
-
- /**
- * This module is off by default, but can be enabled to facilitate the display of
- * extra debug information during code development.
- *
- * Just connect up 5V and GND to give it power, then connect up the pins assigned
- * in Configuration_adv.h. For example, on the Re-ARM you could use:
- *
- * #define MAX7219_CLK_PIN 77
- * #define MAX7219_DIN_PIN 78
- * #define MAX7219_LOAD_PIN 79
- *
- * max7219.init() is called automatically at startup, and then there are a number of
- * support functions available to control the LEDs in the 8x8 grid.
- *
- * If you are using the Max7219 matrix for firmware debug purposes in time sensitive
- * areas of the code, please be aware that the orientation (rotation) of the display can
- * affect the speed. The Max7219 can update a single column fairly fast. It is much
- * faster to do a Max7219_Set_Column() with a rotation of 90 or 270 degrees than to do
- * a Max7219_Set_Row(). The opposite is true for rotations of 0 or 180 degrees.
- */
-
- #ifndef MAX7219_ROTATE
- #define MAX7219_ROTATE 0
- #endif
- #define _ROT ((MAX7219_ROTATE + 360) % 360)
-
- #ifndef MAX7219_NUMBER_UNITS
- #define MAX7219_NUMBER_UNITS 1
- #endif
- #define MAX7219_LINES (8 * (MAX7219_NUMBER_UNITS))
-
- //
- // MAX7219 registers
- //
- #define max7219_reg_noop 0x00
- #define max7219_reg_digit0 0x01
- #define max7219_reg_digit1 0x02
- #define max7219_reg_digit2 0x03
- #define max7219_reg_digit3 0x04
- #define max7219_reg_digit4 0x05
- #define max7219_reg_digit5 0x06
- #define max7219_reg_digit6 0x07
- #define max7219_reg_digit7 0x08
-
- #define max7219_reg_decodeMode 0x09
- #define max7219_reg_intensity 0x0A
- #define max7219_reg_scanLimit 0x0B
- #define max7219_reg_shutdown 0x0C
- #define max7219_reg_displayTest 0x0F
-
- class Max7219 {
- public:
- static uint8_t led_line[MAX7219_LINES];
-
- Max7219() {}
-
- static void init();
- static void register_setup();
- static void putbyte(uint8_t data);
- static void pulse_load();
-
- // Set a single register (e.g., a whole native row)
- static void send(const uint8_t reg, const uint8_t data);
-
- // Refresh all units
- static inline void refresh() { for (uint8_t i = 0; i < 8; i++) refresh_line(i); }
-
- // Update a single native line on all units
- static void refresh_line(const uint8_t line);
-
- // Update a single native line on just one unit
- static void refresh_unit_line(const uint8_t line);
-
- // Set a single LED by XY coordinate
- static void led_set(const uint8_t x, const uint8_t y, const bool on);
- static void led_on(const uint8_t x, const uint8_t y);
- static void led_off(const uint8_t x, const uint8_t y);
- static void led_toggle(const uint8_t x, const uint8_t y);
-
- // Set all LEDs in a single column
- static void set_column(const uint8_t col, const uint32_t val);
- static void clear_column(const uint8_t col);
-
- // Set all LEDs in a single row
- static void set_row(const uint8_t row, const uint32_t val);
- static void clear_row(const uint8_t row);
-
- // 16 and 32 bit versions of Row and Column functions
- // Multiple rows and columns will be used to display the value if
- // the array of matrix LED's is too narrow to accomplish the goal
- static void set_rows_16bits(const uint8_t y, uint32_t val);
- static void set_rows_32bits(const uint8_t y, uint32_t val);
- static void set_columns_16bits(const uint8_t x, uint32_t val);
- static void set_columns_32bits(const uint8_t x, uint32_t val);
-
- // Quickly clear the whole matrix
- static void clear();
-
- // Quickly fill the whole matrix
- static void fill();
-
- // Apply custom code to update the matrix
- static void idle_tasks();
-
- private:
- static void error(const char * const func, const int32_t v1, const int32_t v2=-1);
- static void noop();
- static void set(const uint8_t line, const uint8_t bits);
- static void send_row(const uint8_t row);
- static void send_column(const uint8_t col);
- static void mark16(const uint8_t y, const uint8_t v1, const uint8_t v2);
- static void range16(const uint8_t y, const uint8_t ot, const uint8_t nt, const uint8_t oh, const uint8_t nh);
- static void quantity16(const uint8_t y, const uint8_t ov, const uint8_t nv);
-
- #ifdef MAX7219_INIT_TEST
- static void test_pattern();
- static void run_test_pattern();
- static void start_test_pattern();
- #endif
- };
-
- extern Max7219 max7219;
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