diff options
Diffstat (limited to 'drivers/avr/is31fl3731.c')
| -rw-r--r-- | drivers/avr/is31fl3731.c | 262 |
1 files changed, 0 insertions, 262 deletions
diff --git a/drivers/avr/is31fl3731.c b/drivers/avr/is31fl3731.c deleted file mode 100644 index 70813464b..000000000 --- a/drivers/avr/is31fl3731.c +++ /dev/null @@ -1,262 +0,0 @@ -/* 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/>. - */ - -#include "is31fl3731.h" -#include <avr/interrupt.h> -#include <avr/io.h> -#include <util/delay.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 IS31FL3731_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 IS31FL3731_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 IS31FL3731_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 - IS31FL3731_write_register( addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG ); - - // enable software shutdown - IS31FL3731_write_register( addr, ISSI_REG_SHUTDOWN, 0x00 ); - // this delay was copied from other drivers, might not be needed - _delay_ms( 10 ); - - // picture mode - IS31FL3731_write_register( addr, ISSI_REG_CONFIG, ISSI_REG_CONFIG_PICTUREMODE ); - // display frame 0 - IS31FL3731_write_register( addr, ISSI_REG_PICTUREFRAME, 0x00 ); - // audio sync off - IS31FL3731_write_register( addr, ISSI_REG_AUDIOSYNC, 0x00 ); - - // select bank 0 - IS31FL3731_write_register( addr, ISSI_COMMANDREGISTER, 0 ); - - // turn off all LEDs in the LED control register - for ( int i = 0x00; i <= 0x11; i++ ) - { - IS31FL3731_write_register( addr, i, 0x00 ); - } - - // turn off all LEDs in the blink control register (not really needed) - for ( int i = 0x12; i <= 0x23; i++ ) - { - IS31FL3731_write_register( addr, i, 0x00 ); - } - - // set PWM on all LEDs to 0 - for ( int i = 0x24; i <= 0xB3; i++ ) - { - IS31FL3731_write_register( addr, i, 0x00 ); - } - - // select "function register" bank - IS31FL3731_write_register( addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG ); - - // disable software shutdown - IS31FL3731_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 - IS31FL3731_write_register( addr, ISSI_COMMANDREGISTER, 0 ); - -} - -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] ); - } - } -} - |