kopia lustrzana https://github.com/pimoroni/pimoroni-pico
126 wiersze
3.1 KiB
C++
126 wiersze
3.1 KiB
C++
#include "ltp305.hpp"
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#include <algorithm>
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#include "dotfont.hpp"
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namespace pimoroni {
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bool LTP305::init() {
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set_brightness(DEFAULT_BRIGHTNESS);
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clear();
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return true;
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}
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i2c_inst_t* LTP305::get_i2c() const {
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return i2c->get_i2c();
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}
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int LTP305::get_address() const {
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return address;
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}
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int LTP305::get_sda() const {
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return i2c->get_sda();
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}
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int LTP305::get_scl() const {
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return i2c->get_scl();
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}
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void LTP305::set_brightness(uint8_t brightness, bool update) {
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brightness = std::min((uint8_t)MAX_BRIGHTNESS, brightness);
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if(update)
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i2c->reg_write_uint8(address, CMD_BRIGHTNESS, brightness);
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}
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void LTP305::set_decimal(bool left, bool right) {
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if(left)
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buf_matrix_left[7 + BUFFER_CMD] |= 0b01000000;
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else
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buf_matrix_left[7 + BUFFER_CMD] &= 0b10111111;
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if(right)
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buf_matrix_right[6 + BUFFER_CMD] |= 0b10000000;
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else
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buf_matrix_right[6 + BUFFER_CMD] &= 0b01111111;
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}
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void LTP305::set_pixel(uint8_t x, uint8_t y, bool c) {
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// Left Matrix
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if(x < 5) {
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if(c)
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buf_matrix_left[x + BUFFER_CMD] |= (0b1 << y);
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else
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buf_matrix_left[x + BUFFER_CMD] &= ~(0b1 << y);
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}
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// Right Matrix
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else {
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x -= 5;
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if(c)
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buf_matrix_right[y + BUFFER_CMD] |= (0b1 << x);
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else
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buf_matrix_right[y + BUFFER_CMD] &= ~(0b1 << x);
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}
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}
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void LTP305::set_character(uint8_t x, uint16_t ch) {
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std::map<uint16_t, DotChar>::const_iterator it = dotfont.find(ch);
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if(it != dotfont.end()) {
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DotChar dchar = it->second;
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for(uint8_t cx = 0; cx < DOT_CHAR_WIDTH; cx++) {
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for(uint8_t cy = 0; cy < HEIGHT; cy++) {
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uint8_t c = dchar.data[cx] & (0b1 << cy);
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set_pixel(x + cx, cy, c);
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}
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}
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}
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}
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void LTP305::set_image(const uint8_t *image, uint16_t image_width, uint16_t image_height,
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uint16_t offset_x, uint16_t offset_y, bool wrap, bool bg, uint8_t on_level, uint8_t padding) {
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for(uint8_t y = 0; y < HEIGHT; y++) {
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for(uint8_t x = 0; x < WIDTH; x++) {
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bool p = bg;
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uint16_t i_x = x + offset_x;
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uint16_t i_y = y + offset_y;
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if(x >= 5)
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i_x += padding;
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if(wrap) {
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while(i_x >= image_width) {
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i_x -= image_width;
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}
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while(i_y >= image_height) {
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i_y -= image_height;
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}
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}
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if((i_x < image_width) && (i_y < image_height)) {
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p = (image[(i_y * image_width) + i_x] >= on_level);
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}
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set_pixel(x, y, p);
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}
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}
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}
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void LTP305::clear() {
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for(uint8_t i = 0; i < BUFFER_LENGTH; i++) {
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buf_matrix_left[i + 1] = 0x00;
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buf_matrix_right[i + 1] = 0x00;
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}
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}
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void LTP305::show() {
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i2c->write_blocking(address, buf_matrix_left, BUFFER_CMD + BUFFER_LENGTH, false);
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i2c->write_blocking(address, buf_matrix_right, BUFFER_CMD + BUFFER_LENGTH, false);
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i2c->reg_write_uint8(address, CMD_MODE, MODE);
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i2c->reg_write_uint8(address, CMD_OPTIONS, OPTS);
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i2c->reg_write_uint8(address, CMD_BRIGHTNESS, brightness);
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i2c->reg_write_uint8(address, CMD_UPDATE, 0x01);
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}
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} |