diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/issi/is31fl3737.c | 252 | ||||
| -rw-r--r-- | drivers/issi/is31fl3737.h | 207 |
2 files changed, 459 insertions, 0 deletions
diff --git a/drivers/issi/is31fl3737.c b/drivers/issi/is31fl3737.c new file mode 100644 index 000000000..649104927 --- /dev/null +++ b/drivers/issi/is31fl3737.c @@ -0,0 +1,252 @@ +/* Copyright 2017 Jason Williams + * Copyright 2018 Jack Humbert + * Copyright 2018 Yiancar + * + * 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 <string.h> +#include "i2c_master.h" +#include "progmem.h" +#include "rgb_matrix.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: +// 00 <-> GND +// 01 <-> SCL +// 10 <-> SDA +// 11 <-> VCC +// ADDR1 represents A1:A0 of the 7-bit address. +// ADDR2 represents A3:A2 of the 7-bit address. +// The result is: 0b101(ADDR2)(ADDR1) +#define ISSI_ADDR_DEFAULT 0x50 + +#define ISSI_COMMANDREGISTER 0xFD +#define ISSI_COMMANDREGISTER_WRITELOCK 0xFE +#define ISSI_INTERRUPTMASKREGISTER 0xF0 +#define ISSI_INTERRUPTSTATUSREGISTER 0xF1 + +#define ISSI_PAGE_LEDCONTROL 0x00 //PG0 +#define ISSI_PAGE_PWM 0x01 //PG1 +#define ISSI_PAGE_AUTOBREATH 0x02 //PG2 +#define ISSI_PAGE_FUNCTION 0x03 //PG3 + +#define ISSI_REG_CONFIGURATION 0x00 //PG3 +#define ISSI_REG_GLOBALCURRENT 0x01 //PG3 +#define ISSI_REG_RESET 0x11// PG3 +#define ISSI_REG_SWPULLUP 0x0F //PG3 +#define ISSI_REG_CSPULLUP 0x10 //PG3 + +#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 IS31FL3737 PWM registers. +// The control buffers match the PG0 LED On/Off registers. +// 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 IS31FL3737_write_pwm_buffer() but it's +// probably not worth the extra complexity. +uint8_t g_pwm_buffer[DRIVER_COUNT][192]; +bool g_pwm_buffer_update_required = false; + +uint8_t g_led_control_registers[DRIVER_COUNT][24] = { { 0 } }; +bool g_led_control_registers_update_required = false; + +void IS31FL3737_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 IS31FL3737_write_pwm_buffer( uint8_t addr, uint8_t *pwm_buffer ) +{ + // assumes PG1 is already selected + + // transmit PWM registers in 12 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 < 192; i += 16 ) { + g_twi_transfer_buffer[0] = i; + // copy the data from i to i+15 + // device will auto-increment register for data after the first byte + // thus this sets registers 0x00-0x0F, 0x10-0x1F, 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 IS31FL3737_init( uint8_t addr ) +{ + // In order to avoid the LEDs being driven with garbage data + // in the LED driver's PWM registers, shutdown is enabled last. + // Set up the mode and other settings, clear the PWM registers, + // then disable software shutdown. + + // Unlock the command register. + IS31FL3737_write_register( addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5 ); + + // Select PG0 + IS31FL3737_write_register( addr, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL ); + // Turn off all LEDs. + for ( int i = 0x00; i <= 0x17; i++ ) + { + IS31FL3737_write_register( addr, i, 0x00 ); + } + + // Unlock the command register. + IS31FL3737_write_register( addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5 ); + + // Select PG1 + IS31FL3737_write_register( addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM ); + // Set PWM on all LEDs to 0 + // No need to setup Breath registers to PWM as that is the default. + for ( int i = 0x00; i <= 0xBF; i++ ) + { + IS31FL3737_write_register( addr, i, 0x00 ); + } + + // Unlock the command register. + IS31FL3737_write_register( addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5 ); + + // Select PG3 + IS31FL3737_write_register( addr, ISSI_COMMANDREGISTER, ISSI_PAGE_FUNCTION ); + // Set global current to maximum. + IS31FL3737_write_register( addr, ISSI_REG_GLOBALCURRENT, 0xFF ); + // Disable software shutdown. + IS31FL3737_write_register( addr, ISSI_REG_CONFIGURATION, 0x01 ); + + // Wait 10ms to ensure the device has woken up. + #ifdef __AVR__ + _delay_ms( 10 ); + #else + wait_ms(10); + #endif +} + +void IS31FL3737_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]; + + g_pwm_buffer[led.driver][led.r] = red; + g_pwm_buffer[led.driver][led.g] = green; + g_pwm_buffer[led.driver][led.b] = blue; + g_pwm_buffer_update_required = true; + } +} + +void IS31FL3737_set_color_all( uint8_t red, uint8_t green, uint8_t blue ) +{ + for ( int i = 0; i < DRIVER_LED_TOTAL; i++ ) + { + IS31FL3737_set_color( i, red, green, blue ); + } +} + +void IS31FL3737_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 / 8; + uint8_t control_register_g = led.g / 8; + uint8_t control_register_b = led.b / 8; + uint8_t bit_r = led.r % 8; + uint8_t bit_g = led.g % 8; + uint8_t bit_b = led.b % 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 IS31FL3737_update_pwm_buffers( uint8_t addr1, uint8_t addr2 ) +{ + if ( g_pwm_buffer_update_required ) + { + // Firstly we need to unlock the command register and select PG1 + IS31FL3737_write_register( addr1, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5 ); + IS31FL3737_write_register( addr1, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM ); + + IS31FL3737_write_pwm_buffer( addr1, g_pwm_buffer[0] ); + //IS31FL3737_write_pwm_buffer( addr2, g_pwm_buffer[1] ); + } + g_pwm_buffer_update_required = false; +} + +void IS31FL3737_update_led_control_registers( uint8_t addr1, uint8_t addr2 ) +{ + if ( g_led_control_registers_update_required ) + { + // Firstly we need to unlock the command register and select PG0 + IS31FL3737_write_register( addr1, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5 ); + IS31FL3737_write_register( addr1, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL ); + for ( int i=0; i<24; i++ ) + { + IS31FL3737_write_register(addr1, i, g_led_control_registers[0][i] ); + //IS31FL3737_write_register(addr2, i, g_led_control_registers[1][i] ); + } + } +} diff --git a/drivers/issi/is31fl3737.h b/drivers/issi/is31fl3737.h new file mode 100644 index 000000000..69c4b9b53 --- /dev/null +++ b/drivers/issi/is31fl3737.h @@ -0,0 +1,207 @@ +/* Copyright 2017 Jason Williams + * Copyright 2018 Jack Humbert + * Copyright 2018 Yiancar + * + * 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/>. + */ + + +#ifndef IS31FL3737_DRIVER_H +#define IS31FL3737_DRIVER_H + +#include <stdint.h> +#include <stdbool.h> + +typedef struct is31_led { + uint8_t driver:2; + uint8_t r; + uint8_t g; + uint8_t b; +} __attribute__((packed)) is31_led; + +extern const is31_led g_is31_leds[DRIVER_LED_TOTAL]; + +void IS31FL3737_init( uint8_t addr ); +void IS31FL3737_write_register( uint8_t addr, uint8_t reg, uint8_t data ); +void IS31FL3737_write_pwm_buffer( uint8_t addr, uint8_t *pwm_buffer ); + +void IS31FL3737_set_color( int index, uint8_t red, uint8_t green, uint8_t blue ); +void IS31FL3737_set_color_all( uint8_t red, uint8_t green, uint8_t blue ); + +void IS31FL3737_set_led_control_register( uint8_t index, bool red, bool green, bool blue ); + +// This should not be called from an interrupt +// (eg. from a timer interrupt). +// Call this while idle (in between matrix scans). +// If the buffer is dirty, it will update the driver with the buffer. +void IS31FL3737_update_pwm_buffers( uint8_t addr1, uint8_t addr2 ); +void IS31FL3737_update_led_control_registers( uint8_t addr1, uint8_t addr2 ); + +#define A_1 0x00 +#define A_2 0x01 +#define A_3 0x02 +#define A_4 0x03 +#define A_5 0x04 +#define A_6 0x05 +#define A_7 0x08 +#define A_8 0x09 +#define A_9 0x0A +#define A_10 0x0B +#define A_11 0x0C +#define A_12 0x0D + +#define B_1 0x10 +#define B_2 0x11 +#define B_3 0x12 +#define B_4 0x13 +#define B_5 0x14 +#define B_6 0x15 +#define B_7 0x18 +#define B_8 0x19 +#define B_9 0x1A +#define B_10 0x1B +#define B_11 0x1C +#define B_12 0x1D + +#define C_1 0x20 +#define C_2 0x21 +#define C_3 0x22 +#define C_4 0x23 +#define C_5 0x24 +#define C_6 0x25 +#define C_7 0x28 +#define C_8 0x29 +#define C_9 0x2A +#define C_10 0x2B +#define C_11 0x2C +#define C_12 0x2D + +#define D_1 0x30 +#define D_2 0x31 +#define D_3 0x32 +#define D_4 0x33 +#define D_5 0x34 +#define D_6 0x35 +#define D_7 0x38 +#define D_8 0x39 +#define D_9 0x3A +#define D_10 0x3B +#define D_11 0x3C +#define D_12 0x3D + +#define E_1 0x40 +#define E_2 0x41 +#define E_3 0x42 +#define E_4 0x43 +#define E_5 0x44 +#define E_6 0x45 +#define E_7 0x48 +#define E_8 0x49 +#define E_9 0x4A +#define E_10 0x4B +#define E_11 0x4C +#define E_12 0x4D + +#define F_1 0x50 +#define F_2 0x51 +#define F_3 0x52 +#define F_4 0x53 +#define F_5 0x54 +#define F_6 0x55 +#define F_7 0x58 +#define F_8 0x59 +#define F_9 0x5A +#define F_10 0x5B +#define F_11 0x5C +#define F_12 0x5D + +#define G_1 0x60 +#define G_2 0x61 +#define G_3 0x62 +#define G_4 0x63 +#define G_5 0x64 +#define G_6 0x65 +#define G_7 0x68 +#define G_8 0x69 +#define G_9 0x6A +#define G_10 0x6B +#define G_11 0x6C +#define G_12 0x6D + +#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 0x78 +#define H_8 0x79 +#define H_9 0x7A +#define H_10 0x7B +#define H_11 0x7C +#define H_12 0x7D + +#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 0x88 +#define I_8 0x89 +#define I_9 0x8A +#define I_10 0x8B +#define I_11 0x8C +#define I_12 0x8D + +#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 0x98 +#define J_8 0x99 +#define J_9 0x9A +#define J_10 0x9B +#define J_11 0x9C +#define J_12 0x9D + +#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 0xA8 +#define K_8 0xA9 +#define K_9 0xAA +#define K_10 0xAB +#define K_11 0xAC +#define K_12 0xAD + +#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 0xB8 +#define L_8 0xB9 +#define L_9 0xBA +#define L_10 0xBB +#define L_11 0xBC +#define L_12 0xBD + +#endif // IS31FL3737_DRIVER_H |