IS31FL3733 driver for LED Matrix (#15088)
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Leo Deng
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248
drivers/led/issi/is31fl3733-simple.c
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248
drivers/led/issi/is31fl3733-simple.c
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/* Copyright 2017 Jason Williams
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* Copyright 2018 Jack Humbert
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* Copyright 2018 Yiancar
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* Copyright 2021 Doni Crosby
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* Copyright 2021 Leo Deng
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "is31fl3733-simple.h"
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#include "i2c_master.h"
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#include "wait.h"
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// This is a 7-bit address, that gets left-shifted and bit 0
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// set to 0 for write, 1 for read (as per I2C protocol)
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// The address will vary depending on your wiring:
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// 00 <-> GND
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// 01 <-> SCL
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// 10 <-> SDA
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// 11 <-> VCC
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// ADDR1 represents A1:A0 of the 7-bit address.
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// ADDR2 represents A3:A2 of the 7-bit address.
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// The result is: 0b101(ADDR2)(ADDR1)
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#define ISSI_ADDR_DEFAULT 0x50
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#define ISSI_COMMANDREGISTER 0xFD
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#define ISSI_COMMANDREGISTER_WRITELOCK 0xFE
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#define ISSI_INTERRUPTMASKREGISTER 0xF0
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#define ISSI_INTERRUPTSTATUSREGISTER 0xF1
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#define ISSI_PAGE_LEDCONTROL 0x00 // PG0
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#define ISSI_PAGE_PWM 0x01 // PG1
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#define ISSI_PAGE_AUTOBREATH 0x02 // PG2
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#define ISSI_PAGE_FUNCTION 0x03 // PG3
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#define ISSI_REG_CONFIGURATION 0x00 // PG3
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#define ISSI_REG_GLOBALCURRENT 0x01 // PG3
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#define ISSI_REG_RESET 0x11 // PG3
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#define ISSI_REG_SWPULLUP 0x0F // PG3
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#define ISSI_REG_CSPULLUP 0x10 // PG3
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#ifndef ISSI_TIMEOUT
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# define ISSI_TIMEOUT 100
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#endif
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#ifndef ISSI_PERSISTENCE
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# define ISSI_PERSISTENCE 0
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#endif
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#ifndef ISSI_PWM_FREQUENCY
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# define ISSI_PWM_FREQUENCY 0b000 // PFS - IS31FL3733B only
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#endif
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#ifndef ISSI_SWPULLUP
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# define ISSI_SWPULLUP PUR_0R
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#endif
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#ifndef ISSI_CSPULLUP
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# define ISSI_CSPULLUP PUR_0R
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#endif
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// Transfer buffer for TWITransmitData()
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uint8_t g_twi_transfer_buffer[20];
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// These buffers match the IS31FL3733 PWM registers.
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// The control buffers match the PG0 LED On/Off registers.
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// Storing them like this is optimal for I2C transfers to the registers.
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// We could optimize this and take out the unused registers from these
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// buffers and the transfers in IS31FL3733_write_pwm_buffer() but it's
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// probably not worth the extra complexity.
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uint8_t g_pwm_buffer[LED_DRIVER_COUNT][192];
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bool g_pwm_buffer_update_required[LED_DRIVER_COUNT] = {false};
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/* There's probably a better way to init this... */
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#if LED_DRIVER_COUNT == 1
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uint8_t g_led_control_registers[LED_DRIVER_COUNT][24] = {{0}};
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#elif LED_DRIVER_COUNT == 2
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uint8_t g_led_control_registers[LED_DRIVER_COUNT][24] = {{0}, {0}};
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#elif LED_DRIVER_COUNT == 3
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uint8_t g_led_control_registers[LED_DRIVER_COUNT][24] = {{0}, {0}, {0}};
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#elif LED_DRIVER_COUNT == 4
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uint8_t g_led_control_registers[LED_DRIVER_COUNT][24] = {{0}, {0}, {0}, {0}};
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#endif
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bool g_led_control_registers_update_required[LED_DRIVER_COUNT] = {false};
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bool IS31FL3733_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
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// If the transaction fails function returns false.
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g_twi_transfer_buffer[0] = reg;
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g_twi_transfer_buffer[1] = data;
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#if ISSI_PERSISTENCE > 0
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for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
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if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT) != 0) {
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return false;
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}
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}
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#else
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if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT) != 0) {
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return false;
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}
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#endif
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return true;
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}
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bool IS31FL3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
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// Assumes PG1 is already selected.
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// If any of the transactions fails function returns false.
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// Transmit PWM registers in 12 transfers of 16 bytes.
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// g_twi_transfer_buffer[] is 20 bytes
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// Iterate over the pwm_buffer contents at 16 byte intervals.
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for (int i = 0; i < 192; i += 16) {
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g_twi_transfer_buffer[0] = i;
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// Copy the data from i to i+15.
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// Device will auto-increment register for data after the first byte
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// Thus this sets registers 0x00-0x0F, 0x10-0x1F, etc. in one transfer.
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for (int j = 0; j < 16; j++) {
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g_twi_transfer_buffer[1 + j] = pwm_buffer[i + j];
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}
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#if ISSI_PERSISTENCE > 0
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for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
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if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT) != 0) {
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return false;
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}
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}
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#else
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if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT) != 0) {
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return false;
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}
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#endif
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}
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return true;
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}
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void IS31FL3733_init(uint8_t addr, uint8_t sync) {
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// In order to avoid the LEDs being driven with garbage data
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// in the LED driver's PWM registers, shutdown is enabled last.
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// Set up the mode and other settings, clear the PWM registers,
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// then disable software shutdown.
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// Sync is passed so set it according to the datasheet.
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// Unlock the command register.
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IS31FL3733_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
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// Select PG0
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IS31FL3733_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL);
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// Turn off all LEDs.
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for (int i = 0x00; i <= 0x17; i++) {
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IS31FL3733_write_register(addr, i, 0x00);
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}
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// Unlock the command register.
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IS31FL3733_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
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// Select PG1
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IS31FL3733_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM);
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// Set PWM on all LEDs to 0
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// No need to setup Breath registers to PWM as that is the default.
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for (int i = 0x00; i <= 0xBF; i++) {
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IS31FL3733_write_register(addr, i, 0x00);
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}
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// Unlock the command register.
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IS31FL3733_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
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// Select PG3
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IS31FL3733_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_FUNCTION);
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// Set de-ghost pull-up resistors (SWx)
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IS31FL3733_write_register(addr, ISSI_REG_SWPULLUP, ISSI_SWPULLUP);
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// Set de-ghost pull-down resistors (CSx)
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IS31FL3733_write_register(addr, ISSI_REG_CSPULLUP, ISSI_CSPULLUP);
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// Set global current to maximum.
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IS31FL3733_write_register(addr, ISSI_REG_GLOBALCURRENT, 0xFF);
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// Disable software shutdown.
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IS31FL3733_write_register(addr, ISSI_REG_CONFIGURATION, ((sync & 0b11) << 6) | ((ISSI_PWM_FREQUENCY & 0b111) << 3) | 0x01);
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// Wait 10ms to ensure the device has woken up.
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wait_ms(10);
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}
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void IS31FL3733_set_value(int index, uint8_t value) {
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if (index >= 0 && index < DRIVER_LED_TOTAL) {
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is31_led led = g_is31_leds[index];
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g_pwm_buffer[led.driver][led.v] = value;
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g_pwm_buffer_update_required[led.driver] = true;
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}
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}
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void IS31FL3733_set_value_all(uint8_t value) {
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for (int i = 0; i < DRIVER_LED_TOTAL; i++) {
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IS31FL3733_set_value(i, value);
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}
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}
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void IS31FL3733_set_led_control_register(uint8_t index, bool value) {
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is31_led led = g_is31_leds[index];
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uint8_t control_register = led.v / 8;
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uint8_t bit_value = led.v % 8;
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if (value) {
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g_led_control_registers[led.driver][control_register] |= (1 << bit_value);
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} else {
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g_led_control_registers[led.driver][control_register] &= ~(1 << bit_value);
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}
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g_led_control_registers_update_required[led.driver] = true;
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}
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void IS31FL3733_update_pwm_buffers(uint8_t addr, uint8_t index) {
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if (g_pwm_buffer_update_required[index]) {
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// Firstly we need to unlock the command register and select PG1.
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IS31FL3733_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
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IS31FL3733_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM);
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// If any of the transactions fail we risk writing dirty PG0,
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// refresh page 0 just in case.
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if (!IS31FL3733_write_pwm_buffer(addr, g_pwm_buffer[index])) {
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g_led_control_registers_update_required[index] = true;
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}
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g_pwm_buffer_update_required[index] = false;
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}
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}
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void IS31FL3733_update_led_control_registers(uint8_t addr, uint8_t index) {
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if (g_led_control_registers_update_required[index]) {
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// Firstly we need to unlock the command register and select PG0
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IS31FL3733_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
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IS31FL3733_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL);
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for (int i = 0; i < 24; i++) {
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IS31FL3733_write_register(addr, i, g_led_control_registers[index][i]);
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}
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g_led_control_registers_update_required[index] = false;
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}
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}
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260
drivers/led/issi/is31fl3733-simple.h
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260
drivers/led/issi/is31fl3733-simple.h
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@ -0,0 +1,260 @@
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/* Copyright 2017 Jason Williams
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* Copyright 2018 Jack Humbert
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* Copyright 2018 Yiancar
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* Copyright 2021 Doni Crosby
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* Copyright 2021 Leo Deng
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <stdint.h>
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#include <stdbool.h>
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#include "progmem.h"
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typedef struct is31_led {
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uint8_t driver : 2;
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uint8_t v;
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} __attribute__((packed)) is31_led;
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extern const is31_led __flash g_is31_leds[DRIVER_LED_TOTAL];
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void IS31FL3733_init(uint8_t addr, uint8_t sync);
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bool IS31FL3733_write_register(uint8_t addr, uint8_t reg, uint8_t data);
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bool IS31FL3733_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer);
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void IS31FL3733_set_value(int index, uint8_t value);
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void IS31FL3733_set_value_all(uint8_t value);
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void IS31FL3733_set_led_control_register(uint8_t index, bool value);
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// This should not be called from an interrupt
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// (eg. from a timer interrupt).
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// Call this while idle (in between matrix scans).
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// If the buffer is dirty, it will update the driver with the buffer.
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void IS31FL3733_update_pwm_buffers(uint8_t addr, uint8_t index);
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void IS31FL3733_update_led_control_registers(uint8_t addr, uint8_t index);
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#define PUR_0R 0x00 // No PUR resistor
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#define PUR_05KR 0x02 // 0.5k Ohm resistor in t_NOL
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#define PUR_3KR 0x03 // 3.0k Ohm resistor on all the time
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#define PUR_4KR 0x04 // 4.0k Ohm resistor on all the time
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#define PUR_8KR 0x05 // 8.0k Ohm resistor on all the time
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#define PUR_16KR 0x06 // 16k Ohm resistor on all the time
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#define PUR_32KR 0x07 // 32k Ohm resistor in t_NOL
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#define A_1 0x00
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#define A_2 0x01
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#define A_3 0x02
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#define A_4 0x03
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#define A_5 0x04
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#define A_6 0x05
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#define A_7 0x06
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#define A_8 0x07
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#define A_9 0x08
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#define A_10 0x09
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#define A_11 0x0A
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#define A_12 0x0B
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#define A_13 0x0C
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#define A_14 0x0D
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#define A_15 0x0E
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#define A_16 0x0F
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#define B_1 0x10
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#define B_2 0x11
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#define B_3 0x12
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#define B_4 0x13
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#define B_5 0x14
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#define B_6 0x15
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#define B_7 0x16
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#define B_8 0x17
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#define B_9 0x18
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#define B_10 0x19
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#define B_11 0x1A
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#define B_12 0x1B
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#define B_13 0x1C
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#define B_14 0x1D
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#define B_15 0x1E
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#define B_16 0x1F
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#define C_1 0x20
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#define C_2 0x21
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#define C_3 0x22
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#define C_4 0x23
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#define C_5 0x24
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#define C_6 0x25
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#define C_7 0x26
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#define C_8 0x27
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#define C_9 0x28
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#define C_10 0x29
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#define C_11 0x2A
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#define C_12 0x2B
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#define C_13 0x2C
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#define C_14 0x2D
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#define C_15 0x2E
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#define C_16 0x2F
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#define D_1 0x30
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#define D_2 0x31
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#define D_3 0x32
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#define D_4 0x33
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#define D_5 0x34
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#define D_6 0x35
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#define D_7 0x36
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#define D_8 0x37
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#define D_9 0x38
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#define D_10 0x39
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#define D_11 0x3A
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#define D_12 0x3B
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#define D_13 0x3C
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#define D_14 0x3D
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#define D_15 0x3E
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#define D_16 0x3F
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#define E_1 0x40
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#define E_2 0x41
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#define E_3 0x42
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#define E_4 0x43
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#define E_5 0x44
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#define E_6 0x45
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#define E_7 0x46
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#define E_8 0x47
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#define E_9 0x48
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#define E_10 0x49
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#define E_11 0x4A
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#define E_12 0x4B
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#define E_13 0x4C
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#define E_14 0x4D
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#define E_15 0x4E
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#define E_16 0x4F
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#define F_1 0x50
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#define F_2 0x51
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#define F_3 0x52
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#define F_4 0x53
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#define F_5 0x54
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#define F_6 0x55
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#define F_7 0x56
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#define F_8 0x57
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#define F_9 0x58
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#define F_10 0x59
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#define F_11 0x5A
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#define F_12 0x5B
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#define F_13 0x5C
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#define F_14 0x5D
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#define F_15 0x5E
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#define F_16 0x5F
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#define G_1 0x60
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#define G_2 0x61
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#define G_3 0x62
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#define G_4 0x63
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#define G_5 0x64
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#define G_6 0x65
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#define G_7 0x66
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#define G_8 0x67
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#define G_9 0x68
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||||
#define G_10 0x69
|
||||
#define G_11 0x6A
|
||||
#define G_12 0x6B
|
||||
#define G_13 0x6C
|
||||
#define G_14 0x6D
|
||||
#define G_15 0x6E
|
||||
#define G_16 0x6F
|
||||
|
||||
#define H_1 0x70
|
||||
#define H_2 0x71
|
||||
#define H_3 0x72
|
||||
#define H_4 0x73
|
||||
#define H_5 0x74
|
||||
#define H_6 0x75
|
||||
#define H_7 0x76
|
||||
#define H_8 0x77
|
||||
#define H_9 0x78
|
||||
#define H_10 0x79
|
||||
#define H_11 0x7A
|
||||
#define H_12 0x7B
|
||||
#define H_13 0x7C
|
||||
#define H_14 0x7D
|
||||
#define H_15 0x7E
|
||||
#define H_16 0x7F
|
||||
|
||||
#define I_1 0x80
|
||||
#define I_2 0x81
|
||||
#define I_3 0x82
|
||||
#define I_4 0x83
|
||||
#define I_5 0x84
|
||||
#define I_6 0x85
|
||||
#define I_7 0x86
|
||||
#define I_8 0x87
|
||||
#define I_9 0x88
|
||||
#define I_10 0x89
|
||||
#define I_11 0x8A
|
||||
#define I_12 0x8B
|
||||
#define I_13 0x8C
|
||||
#define I_14 0x8D
|
||||
#define I_15 0x8E
|
||||
#define I_16 0x8F
|
||||
|
||||
#define J_1 0x90
|
||||
#define J_2 0x91
|
||||
#define J_3 0x92
|
||||
#define J_4 0x93
|
||||
#define J_5 0x94
|
||||
#define J_6 0x95
|
||||
#define J_7 0x96
|
||||
#define J_8 0x97
|
||||
#define J_9 0x98
|
||||
#define J_10 0x99
|
||||
#define J_11 0x9A
|
||||
#define J_12 0x9B
|
||||
#define J_13 0x9C
|
||||
#define J_14 0x9D
|
||||
#define J_15 0x9E
|
||||
#define J_16 0x9F
|
||||
|
||||
#define K_1 0xA0
|
||||
#define K_2 0xA1
|
||||
#define K_3 0xA2
|
||||
#define K_4 0xA3
|
||||
#define K_5 0xA4
|
||||
#define K_6 0xA5
|
||||
#define K_7 0xA6
|
||||
#define K_8 0xA7
|
||||
#define K_9 0xA8
|
||||
#define K_10 0xA9
|
||||
#define K_11 0xAA
|
||||
#define K_12 0xAB
|
||||
#define K_13 0xAC
|
||||
#define K_14 0xAD
|
||||
#define K_15 0xAE
|
||||
#define K_16 0xAF
|
||||
|
||||
#define L_1 0xB0
|
||||
#define L_2 0xB1
|
||||
#define L_3 0xB2
|
||||
#define L_4 0xB3
|
||||
#define L_5 0xB4
|
||||
#define L_6 0xB5
|
||||
#define L_7 0xB6
|
||||
#define L_8 0xB7
|
||||
#define L_9 0xB8
|
||||
#define L_10 0xB9
|
||||
#define L_11 0xBA
|
||||
#define L_12 0xBB
|
||||
#define L_13 0xBC
|
||||
#define L_14 0xBD
|
||||
#define L_15 0xBE
|
||||
#define L_16 0xBF
|
||||
|
|
@ -2,6 +2,7 @@
|
|||
* Copyright 2017 Jack Humbert
|
||||
* Copyright 2018 Yiancar
|
||||
* Copyright 2019 Clueboard
|
||||
* Copyright 2021 Leo Deng
|
||||
*
|
||||
* 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
|
||||
|
|
@ -27,6 +28,9 @@
|
|||
#ifdef IS31FL3731
|
||||
# include "is31fl3731-simple.h"
|
||||
#endif
|
||||
#ifdef IS31FL3733
|
||||
# include "is31fl3733-simple.h"
|
||||
#endif
|
||||
|
||||
#ifndef LED_MATRIX_LED_FLUSH_LIMIT
|
||||
# define LED_MATRIX_LED_FLUSH_LIMIT 16
|
||||
|
|
|
|||
Loading…
Reference in a new issue