Rgb matrix arm (#3648)
* Addition of I2C master driver for STM32, Generalization of ISSI3731 driver - Addition of an i2c_master driver for STM32 to replicate expectations of AVR driver. - Moved ISSI3731 driver one level up to make it accesible by both architectures. - Renamed ISSI3731 functions to a more general name for preparation of other ISSI drivers. - Added compiler directives where necessary to differenciate each architecture. * converted tabs to spaces
This commit is contained in:
yiancar
Jack Humbert
parent
feec8ad469
commit
ad2bb529c7
6 changed files with 432 additions and 281 deletions
103
drivers/arm/i2c_master.c
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103
drivers/arm/i2c_master.c
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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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/* This library follows the convention of the AVR i2c_master library.
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* As a result addresses are expected to be already shifted (addr << 1).
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* I2CD1 is the default driver which corresponds to pins B6 and B7. This
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* can be changed.
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* Please ensure that HAL_USE_I2C is TRUE in the halconf.h file and that
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* STM32_I2C_USE_I2C1 is TRUE in the mcuconf.h file.
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*/
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#include "i2c_master.h"
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#include <string.h>
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#include <hal.h>
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static uint8_t i2c_address;
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// This configures the I2C clock to 400Mhz assuming a 72Mhz clock
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// For more info : https://www.st.com/en/embedded-software/stsw-stm32126.html
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static const I2CConfig i2cconfig = {
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STM32_TIMINGR_PRESC(15U) |
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STM32_TIMINGR_SCLDEL(4U) | STM32_TIMINGR_SDADEL(2U) |
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STM32_TIMINGR_SCLH(15U) | STM32_TIMINGR_SCLL(21U),
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0,
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0
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};
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void i2c_init(void)
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{
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palSetGroupMode(GPIOB,6,7, PAL_MODE_INPUT); // Try releasing special pins for a short time
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chThdSleepMilliseconds(10);
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palSetPadMode(GPIOB, 6, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN | PAL_STM32_PUPDR_PULLUP);
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palSetPadMode(GPIOB, 7, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN | PAL_STM32_PUPDR_PULLUP);
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//i2cInit(); //This is invoked by halInit() so no need to redo it.
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}
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// This is usually not needed
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uint8_t i2c_start(uint8_t address)
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{
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i2c_address = address;
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i2cStart(&I2C_DRIVER, &i2cconfig);
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return 0;
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}
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uint8_t i2c_transmit(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout)
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{
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i2c_address = address;
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i2cStart(&I2C_DRIVER, &i2cconfig);
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return i2cMasterTransmitTimeout(&I2C_DRIVER, (i2c_address >> 1), data, length, 0, 0, MS2ST(timeout));
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}
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uint8_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout)
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{
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i2c_address = address;
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i2cStart(&I2C_DRIVER, &i2cconfig);
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return i2cMasterReceiveTimeout(&I2C_DRIVER, (i2c_address >> 1), data, length, MS2ST(timeout));
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}
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uint8_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout)
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{
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i2c_address = devaddr;
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i2cStart(&I2C_DRIVER, &i2cconfig);
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uint8_t complete_packet[length + 1];
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for(uint8_t i = 0; i < length; i++)
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{
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complete_packet[i+1] = data[i];
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}
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complete_packet[0] = regaddr
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return i2cMasterTransmitTimeout(&I2C_DRIVER, (i2c_address >> 1), complete_packet, length + 1, 0, 0, MS2ST(timeout));
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}
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uint8_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout)
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{
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i2c_address = devaddr;
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i2cStart(&I2C_DRIVER, &i2cconfig);
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return i2cMasterTransmitTimeout(&I2C_DRIVER, (i2c_address >> 1), regaddr, 1, data, length, MS2ST(timeout));
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}
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// This is usually not needed. It releases the driver to allow pins to become GPIO again.
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uint8_t i2c_stop(uint16_t timeout)
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{
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i2c_address = address;
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i2cStop(&I2C_DRIVER);
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return 0;
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}
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39
drivers/arm/i2c_master.h
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39
drivers/arm/i2c_master.h
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@ -0,0 +1,39 @@
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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 sofare: 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 Sofare 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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/* This library follows the convention of the AVR i2c_master library.
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* As a result addresses are expected to be already shifted (addr << 1).
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* I2CD1 is the default driver which corresponds to pins B6 and B7. This
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* can be changed.
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* Please ensure that HAL_USE_I2C is TRUE in the halconf.h file and that
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* STM32_I2C_USE_I2C1 is TRUE in the mcuconf.h file.
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*/
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#include "ch.h"
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#include <hal.h>
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#ifndef I2C_DRIVER
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#define I2C_DRIVER I2CD1
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#endif
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void i2c_init(void);
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uint8_t i2c_start(uint8_t address);
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uint8_t i2c_transmit(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout);
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uint8_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout);
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uint8_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
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uint8_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
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void i2c_stop(void);
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@ -1,262 +0,0 @@
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/* Copyright 2017 Jason Williams
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* Copyright 2018 Jack Humbert
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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 "is31fl3731.h"
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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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#include <string.h>
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#include "i2c_master.h"
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#include "progmem.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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// 0b1110100 AD <-> GND
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// 0b1110111 AD <-> VCC
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// 0b1110101 AD <-> SCL
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// 0b1110110 AD <-> SDA
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#define ISSI_ADDR_DEFAULT 0x74
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#define ISSI_REG_CONFIG 0x00
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#define ISSI_REG_CONFIG_PICTUREMODE 0x00
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#define ISSI_REG_CONFIG_AUTOPLAYMODE 0x08
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#define ISSI_REG_CONFIG_AUDIOPLAYMODE 0x18
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#define ISSI_CONF_PICTUREMODE 0x00
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#define ISSI_CONF_AUTOFRAMEMODE 0x04
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#define ISSI_CONF_AUDIOMODE 0x08
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#define ISSI_REG_PICTUREFRAME 0x01
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#define ISSI_REG_SHUTDOWN 0x0A
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#define ISSI_REG_AUDIOSYNC 0x06
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#define ISSI_COMMANDREGISTER 0xFD
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#define ISSI_BANK_FUNCTIONREG 0x0B // helpfully called 'page nine'
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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 IS31FL3731 PWM registers 0x24-0xB3.
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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 IS31FL3731_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][144];
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bool g_pwm_buffer_update_required = false;
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uint8_t g_led_control_registers[DRIVER_COUNT][18] = { { 0 }, { 0 } };
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bool g_led_control_registers_update_required = false;
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// This is the bit pattern in the LED control registers
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// (for matrix A, add one to register for matrix B)
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//
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// reg - b7 b6 b5 b4 b3 b2 b1 b0
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// 0x00 - R08,R07,R06,R05,R04,R03,R02,R01
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// 0x02 - G08,G07,G06,G05,G04,G03,G02,R00
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// 0x04 - B08,B07,B06,B05,B04,B03,G01,G00
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// 0x06 - - , - , - , - , - ,B02,B01,B00
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// 0x08 - - , - , - , - , - , - , - , -
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// 0x0A - B17,B16,B15, - , - , - , - , -
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// 0x0C - G17,G16,B14,B13,B12,B11,B10,B09
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// 0x0E - R17,G15,G14,G13,G12,G11,G10,G09
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// 0x10 - R16,R15,R14,R13,R12,R11,R10,R09
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void IS31FL3731_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 IS31FL3731_write_pwm_buffer( uint8_t addr, uint8_t *pwm_buffer )
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{
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// assumes bank is already selected
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// transmit PWM registers in 9 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 < 144; i += 16 ) {
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// set the first register, e.g. 0x24, 0x34, 0x44, etc.
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g_twi_transfer_buffer[0] = 0x24 + 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 0x24-0x33, 0x34-0x43, 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 IS31FL3731_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, first enable software shutdown,
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// then set up the mode and other settings, clear the PWM registers,
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// then disable software shutdown.
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// select "function register" bank
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IS31FL3731_write_register( addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG );
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// enable software shutdown
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IS31FL3731_write_register( addr, ISSI_REG_SHUTDOWN, 0x00 );
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// this delay was copied from other drivers, might not be needed
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_delay_ms( 10 );
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// picture mode
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IS31FL3731_write_register( addr, ISSI_REG_CONFIG, ISSI_REG_CONFIG_PICTUREMODE );
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// display frame 0
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IS31FL3731_write_register( addr, ISSI_REG_PICTUREFRAME, 0x00 );
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// audio sync off
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IS31FL3731_write_register( addr, ISSI_REG_AUDIOSYNC, 0x00 );
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// select bank 0
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IS31FL3731_write_register( addr, ISSI_COMMANDREGISTER, 0 );
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// turn off all LEDs in the LED control register
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for ( int i = 0x00; i <= 0x11; i++ )
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{
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IS31FL3731_write_register( addr, i, 0x00 );
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}
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// turn off all LEDs in the blink control register (not really needed)
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for ( int i = 0x12; i <= 0x23; i++ )
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{
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IS31FL3731_write_register( addr, i, 0x00 );
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}
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// set PWM on all LEDs to 0
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for ( int i = 0x24; i <= 0xB3; i++ )
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{
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IS31FL3731_write_register( addr, i, 0x00 );
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}
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// select "function register" bank
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IS31FL3731_write_register( addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG );
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// disable software shutdown
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IS31FL3731_write_register( addr, ISSI_REG_SHUTDOWN, 0x01 );
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// select bank 0 and leave it selected.
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// most usage after initialization is just writing PWM buffers in bank 0
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// as there's not much point in double-buffering
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IS31FL3731_write_register( addr, ISSI_COMMANDREGISTER, 0 );
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|
|
||||||
}
|
|
||||||
|
|
||||||
void IS31FL3731_set_color( int index, uint8_t red, uint8_t green, uint8_t blue )
|
|
||||||
{
|
|
||||||
if ( index >= 0 && index < DRIVER_LED_TOTAL ) {
|
|
||||||
is31_led led = g_is31_leds[index];
|
|
||||||
|
|
||||||
// Subtract 0x24 to get the second index of g_pwm_buffer
|
|
||||||
g_pwm_buffer[led.driver][led.r - 0x24] = red;
|
|
||||||
g_pwm_buffer[led.driver][led.g - 0x24] = green;
|
|
||||||
g_pwm_buffer[led.driver][led.b - 0x24] = blue;
|
|
||||||
g_pwm_buffer_update_required = true;
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
void IS31FL3731_set_color_all( uint8_t red, uint8_t green, uint8_t blue )
|
|
||||||
{
|
|
||||||
for ( int i = 0; i < DRIVER_LED_TOTAL; i++ )
|
|
||||||
{
|
|
||||||
IS31FL3731_set_color( i, red, green, blue );
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
void IS31FL3731_set_led_control_register( uint8_t index, bool red, bool green, bool blue )
|
|
||||||
{
|
|
||||||
is31_led led = g_is31_leds[index];
|
|
||||||
|
|
||||||
uint8_t control_register_r = (led.r - 0x24) / 8;
|
|
||||||
uint8_t control_register_g = (led.g - 0x24) / 8;
|
|
||||||
uint8_t control_register_b = (led.b - 0x24) / 8;
|
|
||||||
uint8_t bit_r = (led.r - 0x24) % 8;
|
|
||||||
uint8_t bit_g = (led.g - 0x24) % 8;
|
|
||||||
uint8_t bit_b = (led.b - 0x24) % 8;
|
|
||||||
|
|
||||||
if ( red ) {
|
|
||||||
g_led_control_registers[led.driver][control_register_r] |= (1 << bit_r);
|
|
||||||
} else {
|
|
||||||
g_led_control_registers[led.driver][control_register_r] &= ~(1 << bit_r);
|
|
||||||
}
|
|
||||||
if ( green ) {
|
|
||||||
g_led_control_registers[led.driver][control_register_g] |= (1 << bit_g);
|
|
||||||
} else {
|
|
||||||
g_led_control_registers[led.driver][control_register_g] &= ~(1 << bit_g);
|
|
||||||
}
|
|
||||||
if ( blue ) {
|
|
||||||
g_led_control_registers[led.driver][control_register_b] |= (1 << bit_b);
|
|
||||||
} else {
|
|
||||||
g_led_control_registers[led.driver][control_register_b] &= ~(1 << bit_b);
|
|
||||||
}
|
|
||||||
|
|
||||||
g_led_control_registers_update_required = true;
|
|
||||||
|
|
||||||
}
|
|
||||||
|
|
||||||
void IS31FL3731_update_pwm_buffers( uint8_t addr1, uint8_t addr2 )
|
|
||||||
{
|
|
||||||
if ( g_pwm_buffer_update_required )
|
|
||||||
{
|
|
||||||
IS31FL3731_write_pwm_buffer( addr1, g_pwm_buffer[0] );
|
|
||||||
IS31FL3731_write_pwm_buffer( addr2, g_pwm_buffer[1] );
|
|
||||||
}
|
|
||||||
g_pwm_buffer_update_required = false;
|
|
||||||
}
|
|
||||||
|
|
||||||
void IS31FL3731_update_led_control_registers( uint8_t addr1, uint8_t addr2 )
|
|
||||||
{
|
|
||||||
if ( g_led_control_registers_update_required )
|
|
||||||
{
|
|
||||||
for ( int i=0; i<18; i++ )
|
|
||||||
{
|
|
||||||
IS31FL3731_write_register(addr1, i, g_led_control_registers[0][i] );
|
|
||||||
IS31FL3731_write_register(addr2, i, g_led_control_registers[1][i] );
|
|
||||||
}
|
|
||||||
}
|
|
||||||
}
|
|
||||||
|
|
||||||
271
drivers/is31fl3731.c
Normal file
271
drivers/is31fl3731.c
Normal file
|
|
@ -0,0 +1,271 @@
|
||||||
|
/* Copyright 2017 Jason Williams
|
||||||
|
* Copyright 2018 Jack Humbert
|
||||||
|
*
|
||||||
|
* 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 2 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/>.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#ifdef __AVR__
|
||||||
|
#include <avr/interrupt.h>
|
||||||
|
#include <avr/io.h>
|
||||||
|
#include <util/delay.h>
|
||||||
|
#else
|
||||||
|
#include "wait.h"
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#include "is31fl3731.h"
|
||||||
|
#include <string.h>
|
||||||
|
#include "i2c_master.h"
|
||||||
|
#include "progmem.h"
|
||||||
|
|
||||||
|
// This is a 7-bit address, that gets left-shifted and bit 0
|
||||||
|
// set to 0 for write, 1 for read (as per I2C protocol)
|
||||||
|
// The address will vary depending on your wiring:
|
||||||
|
// 0b1110100 AD <-> GND
|
||||||
|
// 0b1110111 AD <-> VCC
|
||||||
|
// 0b1110101 AD <-> SCL
|
||||||
|
// 0b1110110 AD <-> SDA
|
||||||
|
#define ISSI_ADDR_DEFAULT 0x74
|
||||||
|
|
||||||
|
#define ISSI_REG_CONFIG 0x00
|
||||||
|
#define ISSI_REG_CONFIG_PICTUREMODE 0x00
|
||||||
|
#define ISSI_REG_CONFIG_AUTOPLAYMODE 0x08
|
||||||
|
#define ISSI_REG_CONFIG_AUDIOPLAYMODE 0x18
|
||||||
|
|
||||||
|
#define ISSI_CONF_PICTUREMODE 0x00
|
||||||
|
#define ISSI_CONF_AUTOFRAMEMODE 0x04
|
||||||
|
#define ISSI_CONF_AUDIOMODE 0x08
|
||||||
|
|
||||||
|
#define ISSI_REG_PICTUREFRAME 0x01
|
||||||
|
|
||||||
|
#define ISSI_REG_SHUTDOWN 0x0A
|
||||||
|
#define ISSI_REG_AUDIOSYNC 0x06
|
||||||
|
|
||||||
|
#define ISSI_COMMANDREGISTER 0xFD
|
||||||
|
#define ISSI_BANK_FUNCTIONREG 0x0B // helpfully called 'page nine'
|
||||||
|
|
||||||
|
#ifndef ISSI_TIMEOUT
|
||||||
|
#define ISSI_TIMEOUT 100
|
||||||
|
#endif
|
||||||
|
|
||||||
|
#ifndef ISSI_PERSISTENCE
|
||||||
|
#define ISSI_PERSISTENCE 0
|
||||||
|
#endif
|
||||||
|
|
||||||
|
// Transfer buffer for TWITransmitData()
|
||||||
|
uint8_t g_twi_transfer_buffer[20];
|
||||||
|
|
||||||
|
// These buffers match the IS31FL3731 PWM registers 0x24-0xB3.
|
||||||
|
// Storing them like this is optimal for I2C transfers to the registers.
|
||||||
|
// We could optimize this and take out the unused registers from these
|
||||||
|
// buffers and the transfers in IS31FL3731_write_pwm_buffer() but it's
|
||||||
|
// probably not worth the extra complexity.
|
||||||
|
uint8_t g_pwm_buffer[DRIVER_COUNT][144];
|
||||||
|
bool g_pwm_buffer_update_required = false;
|
||||||
|
|
||||||
|
uint8_t g_led_control_registers[DRIVER_COUNT][18] = { { 0 }, { 0 } };
|
||||||
|
bool g_led_control_registers_update_required = false;
|
||||||
|
|
||||||
|
// This is the bit pattern in the LED control registers
|
||||||
|
// (for matrix A, add one to register for matrix B)
|
||||||
|
//
|
||||||
|
// reg - b7 b6 b5 b4 b3 b2 b1 b0
|
||||||
|
// 0x00 - R08,R07,R06,R05,R04,R03,R02,R01
|
||||||
|
// 0x02 - G08,G07,G06,G05,G04,G03,G02,R00
|
||||||
|
// 0x04 - B08,B07,B06,B05,B04,B03,G01,G00
|
||||||
|
// 0x06 - - , - , - , - , - ,B02,B01,B00
|
||||||
|
// 0x08 - - , - , - , - , - , - , - , -
|
||||||
|
// 0x0A - B17,B16,B15, - , - , - , - , -
|
||||||
|
// 0x0C - G17,G16,B14,B13,B12,B11,B10,B09
|
||||||
|
// 0x0E - R17,G15,G14,G13,G12,G11,G10,G09
|
||||||
|
// 0x10 - R16,R15,R14,R13,R12,R11,R10,R09
|
||||||
|
|
||||||
|
|
||||||
|
void IS31_write_register( uint8_t addr, uint8_t reg, uint8_t data )
|
||||||
|
{
|
||||||
|
g_twi_transfer_buffer[0] = reg;
|
||||||
|
g_twi_transfer_buffer[1] = data;
|
||||||
|
|
||||||
|
#if ISSI_PERSISTENCE > 0
|
||||||
|
for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
|
||||||
|
if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT) == 0)
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
#else
|
||||||
|
i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, ISSI_TIMEOUT);
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
|
||||||
|
void IS31_write_pwm_buffer( uint8_t addr, uint8_t *pwm_buffer )
|
||||||
|
{
|
||||||
|
// assumes bank is already selected
|
||||||
|
|
||||||
|
// transmit PWM registers in 9 transfers of 16 bytes
|
||||||
|
// g_twi_transfer_buffer[] is 20 bytes
|
||||||
|
|
||||||
|
// iterate over the pwm_buffer contents at 16 byte intervals
|
||||||
|
for ( int i = 0; i < 144; i += 16 ) {
|
||||||
|
// set the first register, e.g. 0x24, 0x34, 0x44, etc.
|
||||||
|
g_twi_transfer_buffer[0] = 0x24 + i;
|
||||||
|
// copy the data from i to i+15
|
||||||
|
// device will auto-increment register for data after the first byte
|
||||||
|
// thus this sets registers 0x24-0x33, 0x34-0x43, etc. in one transfer
|
||||||
|
for ( int j = 0; j < 16; j++ ) {
|
||||||
|
g_twi_transfer_buffer[1 + j] = pwm_buffer[i + j];
|
||||||
|
}
|
||||||
|
|
||||||
|
#if ISSI_PERSISTENCE > 0
|
||||||
|
for (uint8_t i = 0; i < ISSI_PERSISTENCE; i++) {
|
||||||
|
if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT) == 0)
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
#else
|
||||||
|
i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, ISSI_TIMEOUT);
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void IS31_init( uint8_t addr )
|
||||||
|
{
|
||||||
|
// In order to avoid the LEDs being driven with garbage data
|
||||||
|
// in the LED driver's PWM registers, first enable software shutdown,
|
||||||
|
// then set up the mode and other settings, clear the PWM registers,
|
||||||
|
// then disable software shutdown.
|
||||||
|
|
||||||
|
// select "function register" bank
|
||||||
|
IS31_write_register( addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG );
|
||||||
|
|
||||||
|
// enable software shutdown
|
||||||
|
IS31_write_register( addr, ISSI_REG_SHUTDOWN, 0x00 );
|
||||||
|
// this delay was copied from other drivers, might not be needed
|
||||||
|
#ifdef __AVR__
|
||||||
|
_delay_ms( 10 );
|
||||||
|
#else
|
||||||
|
wait_ms(10);
|
||||||
|
#endif
|
||||||
|
|
||||||
|
// picture mode
|
||||||
|
IS31_write_register( addr, ISSI_REG_CONFIG, ISSI_REG_CONFIG_PICTUREMODE );
|
||||||
|
// display frame 0
|
||||||
|
IS31_write_register( addr, ISSI_REG_PICTUREFRAME, 0x00 );
|
||||||
|
// audio sync off
|
||||||
|
IS31_write_register( addr, ISSI_REG_AUDIOSYNC, 0x00 );
|
||||||
|
|
||||||
|
// select bank 0
|
||||||
|
IS31_write_register( addr, ISSI_COMMANDREGISTER, 0 );
|
||||||
|
|
||||||
|
// turn off all LEDs in the LED control register
|
||||||
|
for ( int i = 0x00; i <= 0x11; i++ )
|
||||||
|
{
|
||||||
|
IS31_write_register( addr, i, 0x00 );
|
||||||
|
}
|
||||||
|
|
||||||
|
// turn off all LEDs in the blink control register (not really needed)
|
||||||
|
for ( int i = 0x12; i <= 0x23; i++ )
|
||||||
|
{
|
||||||
|
IS31_write_register( addr, i, 0x00 );
|
||||||
|
}
|
||||||
|
|
||||||
|
// set PWM on all LEDs to 0
|
||||||
|
for ( int i = 0x24; i <= 0xB3; i++ )
|
||||||
|
{
|
||||||
|
IS31_write_register( addr, i, 0x00 );
|
||||||
|
}
|
||||||
|
|
||||||
|
// select "function register" bank
|
||||||
|
IS31_write_register( addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG );
|
||||||
|
|
||||||
|
// disable software shutdown
|
||||||
|
IS31_write_register( addr, ISSI_REG_SHUTDOWN, 0x01 );
|
||||||
|
|
||||||
|
// select bank 0 and leave it selected.
|
||||||
|
// most usage after initialization is just writing PWM buffers in bank 0
|
||||||
|
// as there's not much point in double-buffering
|
||||||
|
IS31_write_register( addr, ISSI_COMMANDREGISTER, 0 );
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
void IS31_set_color( int index, uint8_t red, uint8_t green, uint8_t blue )
|
||||||
|
{
|
||||||
|
if ( index >= 0 && index < DRIVER_LED_TOTAL ) {
|
||||||
|
is31_led led = g_is31_leds[index];
|
||||||
|
|
||||||
|
// Subtract 0x24 to get the second index of g_pwm_buffer
|
||||||
|
g_pwm_buffer[led.driver][led.r - 0x24] = red;
|
||||||
|
g_pwm_buffer[led.driver][led.g - 0x24] = green;
|
||||||
|
g_pwm_buffer[led.driver][led.b - 0x24] = blue;
|
||||||
|
g_pwm_buffer_update_required = true;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void IS31_set_color_all( uint8_t red, uint8_t green, uint8_t blue )
|
||||||
|
{
|
||||||
|
for ( int i = 0; i < DRIVER_LED_TOTAL; i++ )
|
||||||
|
{
|
||||||
|
IS31_set_color( i, red, green, blue );
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void IS31_set_led_control_register( uint8_t index, bool red, bool green, bool blue )
|
||||||
|
{
|
||||||
|
is31_led led = g_is31_leds[index];
|
||||||
|
|
||||||
|
uint8_t control_register_r = (led.r - 0x24) / 8;
|
||||||
|
uint8_t control_register_g = (led.g - 0x24) / 8;
|
||||||
|
uint8_t control_register_b = (led.b - 0x24) / 8;
|
||||||
|
uint8_t bit_r = (led.r - 0x24) % 8;
|
||||||
|
uint8_t bit_g = (led.g - 0x24) % 8;
|
||||||
|
uint8_t bit_b = (led.b - 0x24) % 8;
|
||||||
|
|
||||||
|
if ( red ) {
|
||||||
|
g_led_control_registers[led.driver][control_register_r] |= (1 << bit_r);
|
||||||
|
} else {
|
||||||
|
g_led_control_registers[led.driver][control_register_r] &= ~(1 << bit_r);
|
||||||
|
}
|
||||||
|
if ( green ) {
|
||||||
|
g_led_control_registers[led.driver][control_register_g] |= (1 << bit_g);
|
||||||
|
} else {
|
||||||
|
g_led_control_registers[led.driver][control_register_g] &= ~(1 << bit_g);
|
||||||
|
}
|
||||||
|
if ( blue ) {
|
||||||
|
g_led_control_registers[led.driver][control_register_b] |= (1 << bit_b);
|
||||||
|
} else {
|
||||||
|
g_led_control_registers[led.driver][control_register_b] &= ~(1 << bit_b);
|
||||||
|
}
|
||||||
|
|
||||||
|
g_led_control_registers_update_required = true;
|
||||||
|
|
||||||
|
}
|
||||||
|
|
||||||
|
void IS31_update_pwm_buffers( uint8_t addr1, uint8_t addr2 )
|
||||||
|
{
|
||||||
|
if ( g_pwm_buffer_update_required )
|
||||||
|
{
|
||||||
|
IS31_write_pwm_buffer( addr1, g_pwm_buffer[0] );
|
||||||
|
IS31_write_pwm_buffer( addr2, g_pwm_buffer[1] );
|
||||||
|
}
|
||||||
|
g_pwm_buffer_update_required = false;
|
||||||
|
}
|
||||||
|
|
||||||
|
void IS31_update_led_control_registers( uint8_t addr1, uint8_t addr2 )
|
||||||
|
{
|
||||||
|
if ( g_led_control_registers_update_required )
|
||||||
|
{
|
||||||
|
for ( int i=0; i<18; i++ )
|
||||||
|
{
|
||||||
|
IS31_write_register(addr1, i, g_led_control_registers[0][i] );
|
||||||
|
IS31_write_register(addr2, i, g_led_control_registers[1][i] );
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
|
@ -23,7 +23,7 @@
|
||||||
#include <stdbool.h>
|
#include <stdbool.h>
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||||||
|
|
||||||
typedef struct is31_led {
|
typedef struct is31_led {
|
||||||
uint8_t driver:2;
|
uint8_t driver:2;
|
||||||
uint8_t r;
|
uint8_t r;
|
||||||
uint8_t g;
|
uint8_t g;
|
||||||
uint8_t b;
|
uint8_t b;
|
||||||
|
|
@ -31,21 +31,21 @@ typedef struct is31_led {
|
||||||
|
|
||||||
extern const is31_led g_is31_leds[DRIVER_LED_TOTAL];
|
extern const is31_led g_is31_leds[DRIVER_LED_TOTAL];
|
||||||
|
|
||||||
void IS31FL3731_init( uint8_t addr );
|
void IS31_init( uint8_t addr );
|
||||||
void IS31FL3731_write_register( uint8_t addr, uint8_t reg, uint8_t data );
|
void IS31_write_register( uint8_t addr, uint8_t reg, uint8_t data );
|
||||||
void IS31FL3731_write_pwm_buffer( uint8_t addr, uint8_t *pwm_buffer );
|
void IS31_write_pwm_buffer( uint8_t addr, uint8_t *pwm_buffer );
|
||||||
|
|
||||||
void IS31FL3731_set_color( int index, uint8_t red, uint8_t green, uint8_t blue );
|
void IS31_set_color( int index, uint8_t red, uint8_t green, uint8_t blue );
|
||||||
void IS31FL3731_set_color_all( uint8_t red, uint8_t green, uint8_t blue );
|
void IS31_set_color_all( uint8_t red, uint8_t green, uint8_t blue );
|
||||||
|
|
||||||
void IS31FL3731_set_led_control_register( uint8_t index, bool red, bool green, bool blue );
|
void IS31_set_led_control_register( uint8_t index, bool red, bool green, bool blue );
|
||||||
|
|
||||||
// This should not be called from an interrupt
|
// This should not be called from an interrupt
|
||||||
// (eg. from a timer interrupt).
|
// (eg. from a timer interrupt).
|
||||||
// Call this while idle (in between matrix scans).
|
// Call this while idle (in between matrix scans).
|
||||||
// If the buffer is dirty, it will update the driver with the buffer.
|
// If the buffer is dirty, it will update the driver with the buffer.
|
||||||
void IS31FL3731_update_pwm_buffers( uint8_t addr1, uint8_t addr2 );
|
void IS31_update_pwm_buffers( uint8_t addr1, uint8_t addr2 );
|
||||||
void IS31FL3731_update_led_control_registers( uint8_t addr1, uint8_t addr2 );
|
void IS31_update_led_control_registers( uint8_t addr1, uint8_t addr2 );
|
||||||
|
|
||||||
#define C1_1 0x24
|
#define C1_1 0x24
|
||||||
#define C1_2 0x25
|
#define C1_2 0x25
|
||||||
|
|
@ -106,16 +106,16 @@ void map_row_column_to_led( uint8_t row, uint8_t column, uint8_t *led_i, uint8_t
|
||||||
}
|
}
|
||||||
|
|
||||||
void rgb_matrix_update_pwm_buffers(void) {
|
void rgb_matrix_update_pwm_buffers(void) {
|
||||||
IS31FL3731_update_pwm_buffers( DRIVER_ADDR_1, DRIVER_ADDR_2 );
|
IS31_update_pwm_buffers( DRIVER_ADDR_1, DRIVER_ADDR_2 );
|
||||||
IS31FL3731_update_led_control_registers( DRIVER_ADDR_1, DRIVER_ADDR_2 );
|
IS31_update_led_control_registers( DRIVER_ADDR_1, DRIVER_ADDR_2 );
|
||||||
}
|
}
|
||||||
|
|
||||||
void rgb_matrix_set_color( int index, uint8_t red, uint8_t green, uint8_t blue ) {
|
void rgb_matrix_set_color( int index, uint8_t red, uint8_t green, uint8_t blue ) {
|
||||||
IS31FL3731_set_color( index, red, green, blue );
|
IS31_set_color( index, red, green, blue );
|
||||||
}
|
}
|
||||||
|
|
||||||
void rgb_matrix_set_color_all( uint8_t red, uint8_t green, uint8_t blue ) {
|
void rgb_matrix_set_color_all( uint8_t red, uint8_t green, uint8_t blue ) {
|
||||||
IS31FL3731_set_color_all( red, green, blue );
|
IS31_set_color_all( red, green, blue );
|
||||||
}
|
}
|
||||||
|
|
||||||
bool process_rgb_matrix(uint16_t keycode, keyrecord_t *record) {
|
bool process_rgb_matrix(uint16_t keycode, keyrecord_t *record) {
|
||||||
|
|
@ -752,16 +752,16 @@ void rgb_matrix_init(void) {
|
||||||
void rgb_matrix_setup_drivers(void) {
|
void rgb_matrix_setup_drivers(void) {
|
||||||
// Initialize TWI
|
// Initialize TWI
|
||||||
i2c_init();
|
i2c_init();
|
||||||
IS31FL3731_init( DRIVER_ADDR_1 );
|
IS31_init( DRIVER_ADDR_1 );
|
||||||
IS31FL3731_init( DRIVER_ADDR_2 );
|
IS31_init( DRIVER_ADDR_2 );
|
||||||
|
|
||||||
for ( int index = 0; index < DRIVER_LED_TOTAL; index++ ) {
|
for ( int index = 0; index < DRIVER_LED_TOTAL; index++ ) {
|
||||||
bool enabled = true;
|
bool enabled = true;
|
||||||
// This only caches it for later
|
// This only caches it for later
|
||||||
IS31FL3731_set_led_control_register( index, enabled, enabled, enabled );
|
IS31_set_led_control_register( index, enabled, enabled, enabled );
|
||||||
}
|
}
|
||||||
// This actually updates the LED drivers
|
// This actually updates the LED drivers
|
||||||
IS31FL3731_update_led_control_registers( DRIVER_ADDR_1, DRIVER_ADDR_2 );
|
IS31_update_led_control_registers( DRIVER_ADDR_1, DRIVER_ADDR_2 );
|
||||||
}
|
}
|
||||||
|
|
||||||
// Deals with the messy details of incrementing an integer
|
// Deals with the messy details of incrementing an integer
|
||||||
|
|
@ -811,11 +811,11 @@ void rgb_matrix_test_led( uint8_t index, bool red, bool green, bool blue ) {
|
||||||
{
|
{
|
||||||
if ( i == index )
|
if ( i == index )
|
||||||
{
|
{
|
||||||
IS31FL3731_set_led_control_register( i, red, green, blue );
|
IS31_set_led_control_register( i, red, green, blue );
|
||||||
}
|
}
|
||||||
else
|
else
|
||||||
{
|
{
|
||||||
IS31FL3731_set_led_control_register( i, false, false, false );
|
IS31_set_led_control_register( i, false, false, false );
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue