f70f45ee67
* rgb_matrix: use a driver ops struct This is intended to avoid #ifdef proliferation on adding more drivers, eg. model01, which use different architectures. * rgb_matrix: document driver struct members * rgb_matrix: remove unused LED testing code * rgb_matrix: don't build into IS31x drivers unless being used * rgb_matrix: refactor make config options This ensures that the necessary files are included for any custom RGB_MATRIX_ENABLE value, without having to add entries here for specific boards. This particularly affects model01 because its controller is integrated and won't be used anywhere else, so it's preferable not to put it in common_features.mk. This now validates the value of RGB_MATRIX_ENABLE. It was necessary to fix an error in ergodox_ez rules.mk using the wrong comment separator, yielding an invalid value. * IS31x drivers: don't write the control registers all the time This is only needed when they are changed. This is done in init() and board- or keymap-specific code is free to make further changes. * rgb_matrix: move structs from chip drivers to rgb_matrix_drivers.c This approach is specific to the rgb_matrix functionality, so keep it neatly separated from the raw chip drivers.
253 lines
8.1 KiB
C
253 lines
8.1 KiB
C
/* Copyright 2017 Jason Williams
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* Copyright 2018 Jack Humbert
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* Copyright 2018 Yiancar
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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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#ifdef __AVR__
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#include <avr/interrupt.h>
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#include <avr/io.h>
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#include <util/delay.h>
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#else
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#include "wait.h"
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#endif
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#include <string.h>
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#include "i2c_master.h"
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#include "progmem.h"
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#include "rgb_matrix.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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// 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[DRIVER_COUNT][192];
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bool g_pwm_buffer_update_required = false;
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uint8_t g_led_control_registers[DRIVER_COUNT][24] = { { 0 }, { 0 } };
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bool g_led_control_registers_update_required = false;
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void IS31FL3733_write_register( uint8_t addr, uint8_t reg, uint8_t data )
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{
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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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break;
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}
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#else
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i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT);
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#endif
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}
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void IS31FL3733_write_pwm_buffer( uint8_t addr, uint8_t *pwm_buffer )
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{
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// assumes PG1 is already selected
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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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break;
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}
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#else
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i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT);
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#endif
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}
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}
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void IS31FL3733_init( uint8_t addr )
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{
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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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// 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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{
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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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{
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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 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, 0x01 );
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// Wait 10ms to ensure the device has woken up.
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#ifdef __AVR__
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_delay_ms( 10 );
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#else
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wait_ms(10);
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#endif
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}
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void IS31FL3733_set_color( int index, uint8_t red, uint8_t green, uint8_t blue )
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{
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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.r] = red;
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g_pwm_buffer[led.driver][led.g] = green;
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g_pwm_buffer[led.driver][led.b] = blue;
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g_pwm_buffer_update_required = true;
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}
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}
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void IS31FL3733_set_color_all( uint8_t red, uint8_t green, uint8_t blue )
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{
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for ( int i = 0; i < DRIVER_LED_TOTAL; i++ )
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{
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IS31FL3733_set_color( i, red, green, blue );
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}
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}
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void IS31FL3733_set_led_control_register( uint8_t index, bool red, bool green, bool blue )
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{
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is31_led led = g_is31_leds[index];
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uint8_t control_register_r = led.r / 8;
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uint8_t control_register_g = led.g / 8;
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uint8_t control_register_b = led.b / 8;
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uint8_t bit_r = led.r % 8;
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uint8_t bit_g = led.g % 8;
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uint8_t bit_b = led.b % 8;
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if ( red ) {
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g_led_control_registers[led.driver][control_register_r] |= (1 << bit_r);
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} else {
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g_led_control_registers[led.driver][control_register_r] &= ~(1 << bit_r);
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}
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if ( green ) {
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g_led_control_registers[led.driver][control_register_g] |= (1 << bit_g);
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} else {
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g_led_control_registers[led.driver][control_register_g] &= ~(1 << bit_g);
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}
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if ( blue ) {
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g_led_control_registers[led.driver][control_register_b] |= (1 << bit_b);
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} else {
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g_led_control_registers[led.driver][control_register_b] &= ~(1 << bit_b);
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}
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g_led_control_registers_update_required = true;
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}
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void IS31FL3733_update_pwm_buffers( uint8_t addr1, uint8_t addr2 )
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{
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if ( g_pwm_buffer_update_required )
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{
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// Firstly we need to unlock the command register and select PG1
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IS31FL3733_write_register( addr1, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5 );
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IS31FL3733_write_register( addr1, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM );
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IS31FL3733_write_pwm_buffer( addr1, g_pwm_buffer[0] );
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//IS31FL3733_write_pwm_buffer( addr2, g_pwm_buffer[1] );
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}
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g_pwm_buffer_update_required = false;
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}
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void IS31FL3733_update_led_control_registers( uint8_t addr1, uint8_t addr2 )
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{
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if ( g_led_control_registers_update_required )
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{
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// Firstly we need to unlock the command register and select PG0
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IS31FL3733_write_register( addr1, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5 );
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IS31FL3733_write_register( addr1, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL );
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for ( int i=0; i<24; i++ )
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{
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IS31FL3733_write_register(addr1, i, g_led_control_registers[0][i] );
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//IS31FL3733_write_register(addr2, i, g_led_control_registers[1][i] );
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}
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}
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}
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