94 lines
2.2 KiB
C++
94 lines
2.2 KiB
C++
#include <cstdlib>
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#include <math.h>
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#include <map>
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#include <vector>
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#include "is31fl3731.hpp"
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#include "common/pimoroni_common.hpp"
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namespace pimoroni {
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constexpr uint8_t CONFIG_BANK = 0x0b;
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constexpr uint8_t NUM_PIXELS = 144;
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constexpr uint8_t NUM_FRAMES = 8;
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constexpr uint8_t ENABLE_OFFSET = 0x00;
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constexpr uint8_t COLOR_OFFSET = 0x24;
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enum mode {
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PICTURE = 0x00,
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AUTOPLAY = 0x08,
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AUDIOPLAY = 0x18
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};
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enum reg : uint8_t {
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MODE = 0x00,
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FRAME = 0x01,
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AUTPLAY1 = 0x02,
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AUTOPLAY2 = 0x03,
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BLINK = 0x05,
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AUDIOSYNC = 0x06,
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BREATH1 = 0x07,
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BREATH2 = 0x08,
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SHUTDOWN = 0x0a,
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GAIN = 0x0b,
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ADC = 0x0c,
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BANK = 0xfd
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};
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bool IS31FL3731::init() {
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i2c->reg_write_uint8(address, reg::BANK, CONFIG_BANK);
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i2c->reg_write_uint8(address, reg::SHUTDOWN, 0b00000000);
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clear();
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update(0);
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i2c->reg_write_uint8(address, reg::SHUTDOWN, 0b00000001);
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i2c->reg_write_uint8(address, reg::MODE, mode::PICTURE);
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i2c->reg_write_uint8(address, reg::AUDIOSYNC, 0);
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return true;
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}
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i2c_inst_t* IS31FL3731::get_i2c() const {
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return i2c->get_i2c();
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}
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int IS31FL3731::get_address() const {
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return address;
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}
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int IS31FL3731::get_sda() const {
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return i2c->get_sda();
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}
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int IS31FL3731::get_scl() const {
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return i2c->get_scl();
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}
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void IS31FL3731::clear() {
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for(auto i = 0u; i < sizeof(buf); i++) {
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buf[i] = 0;
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}
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}
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void IS31FL3731::enable(std::initializer_list<uint8_t> pattern, uint8_t frame) {
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i2c->reg_write_uint8(address, reg::BANK, frame);
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i2c->write_bytes(address, ENABLE_OFFSET, pattern.begin(), pattern.size());
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}
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void IS31FL3731::set(uint8_t index, uint8_t brightness) {
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buf[index + 1] = pimoroni::GAMMA_8BIT[brightness];
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}
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void IS31FL3731::update(uint8_t frame) {
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i2c->reg_write_uint8(address, reg::BANK, frame);
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buf[0] = COLOR_OFFSET;
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i2c->write_blocking(address, buf, sizeof(buf), false);
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i2c->reg_write_uint8(address, reg::BANK, CONFIG_BANK); // Switch back to config bank
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i2c->reg_write_uint8(address, reg::FRAME, frame); // Set the desired frame as active
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}
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} |