diff options
Diffstat (limited to 'drivers/issi/is31fl3737.c')
| -rw-r--r-- | drivers/issi/is31fl3737.c | 223 |
1 files changed, 0 insertions, 223 deletions
diff --git a/drivers/issi/is31fl3737.c b/drivers/issi/is31fl3737.c deleted file mode 100644 index 8647c93cc1..0000000000 --- a/drivers/issi/is31fl3737.c +++ /dev/null @@ -1,223 +0,0 @@ -/* 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/>. - */ - -#include "is31fl3737.h" -#include "i2c_master.h" -#include "wait.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. - wait_ms(10); -} - -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]); - } - g_led_control_registers_update_required = false; - } -} |