diff options
Diffstat (limited to 'drivers/led/issi/is31fl3218-simple.c')
-rw-r--r-- | drivers/led/issi/is31fl3218-simple.c | 147 |
1 files changed, 0 insertions, 147 deletions
diff --git a/drivers/led/issi/is31fl3218-simple.c b/drivers/led/issi/is31fl3218-simple.c deleted file mode 100644 index ce28c51d18..0000000000 --- a/drivers/led/issi/is31fl3218-simple.c +++ /dev/null @@ -1,147 +0,0 @@ -/* Copyright 2018 Jason Williams (Wilba) - * - * 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 "is31fl3218.h" -#include <string.h> -#include "i2c_master.h" - -#define IS31FL3218_PWM_REGISTER_COUNT 18 -#define IS31FL3218_LED_CONTROL_REGISTER_COUNT 3 - -#ifndef IS31FL3218_I2C_TIMEOUT -# define IS31FL3218_I2C_TIMEOUT 100 -#endif - -#ifndef IS31FL3218_I2C_PERSISTENCE -# define IS31FL3218_I2C_PERSISTENCE 0 -#endif - -// Reusable buffer for transfers -uint8_t g_twi_transfer_buffer[20]; - -// IS31FL3218 has 18 PWM outputs and a fixed I2C address, so no chaining. -uint8_t g_pwm_buffer[IS31FL3218_PWM_REGISTER_COUNT]; -bool g_pwm_buffer_update_required = false; - -uint8_t g_led_control_registers[IS31FL3218_LED_CONTROL_REGISTER_COUNT] = {0}; -bool g_led_control_registers_update_required = false; - -void is31fl3218_write_register(uint8_t reg, uint8_t data) { - g_twi_transfer_buffer[0] = reg; - g_twi_transfer_buffer[1] = data; -#if IS31FL3218_I2C_PERSISTENCE > 0 - for (uint8_t i = 0; i < IS31FL3218_I2C_PERSISTENCE; i++) { - if (i2c_transmit(IS31FL3218_I2C_ADDRESS << 1, g_twi_transfer_buffer, 2, IS31FL3218_I2C_TIMEOUT) == 0) break; - } -#else - i2c_transmit(IS31FL3218_I2C_ADDRESS << 1, g_twi_transfer_buffer, 2, IS31FL3218_I2C_TIMEOUT); -#endif -} - -void is31fl3218_write_pwm_buffer(uint8_t *pwm_buffer) { - g_twi_transfer_buffer[0] = IS31FL3218_REG_PWM; - memcpy(g_twi_transfer_buffer + 1, pwm_buffer, 18); - -#if IS31FL3218_I2C_PERSISTENCE > 0 - for (uint8_t i = 0; i < IS31FL3218_I2C_PERSISTENCE; i++) { - i2c_transmit(IS31FL3218_I2C_ADDRESS << 1, g_twi_transfer_buffer, 19, IS31FL3218_I2C_TIMEOUT); - } -#else - i2c_transmit(IS31FL3218_I2C_ADDRESS << 1, g_twi_transfer_buffer, 19, IS31FL3218_I2C_TIMEOUT); -#endif -} - -void is31fl3218_init(void) { - i2c_init(); - - // In case we ever want to reinitialize (?) - is31fl3218_write_register(IS31FL3218_REG_RESET, 0x00); - - // Turn off software shutdown - is31fl3218_write_register(IS31FL3218_REG_SHUTDOWN, 0x01); - - // Set all PWM values to zero - for (uint8_t i = 0; i < IS31FL3218_PWM_REGISTER_COUNT; i++) { - is31fl3218_write_register(IS31FL3218_REG_PWM + i, 0x00); - } - - // turn off all LEDs in the LED control register - for (uint8_t i = 0; i < IS31FL3218_LED_CONTROL_REGISTER_COUNT; i++) { - is31fl3218_write_register(IS31FL3218_REG_LED_CONTROL_1 + i, 0x00); - } - - // Load PWM registers and LED Control register data - is31fl3218_write_register(IS31FL3218_REG_UPDATE, 0x01); - - for (int i = 0; i < IS31FL3218_LED_COUNT; i++) { - is31fl3218_set_led_control_register(i, true); - } - - is31fl3218_update_led_control_registers(); -} - -void is31fl3218_set_value(int index, uint8_t value) { - is31fl3218_led_t led; - if (index >= 0 && index < IS31FL3218_LED_COUNT) { - memcpy_P(&led, (&g_is31fl3218_leds[index]), sizeof(led)); - } - if (g_pwm_buffer[led.v - IS31FL3218_REG_PWM] == value) { - return; - } - g_pwm_buffer[led.v - IS31FL3218_REG_PWM] = value; - g_pwm_buffer_update_required = true; -} - -void is31fl3218_set_value_all(uint8_t value) { - for (int i = 0; i < IS31FL3218_LED_COUNT; i++) { - is31fl3218_set_value(i, value); - } -} - -void is31fl3218_set_led_control_register(uint8_t index, bool value) { - is31fl3218_led_t led; - memcpy_P(&led, (&g_is31fl3218_leds[index]), sizeof(led)); - - uint8_t control_register = (led.v - IS31FL3218_REG_PWM) / 6; - uint8_t bit_value = (led.v - IS31FL3218_REG_PWM) % 6; - - if (value) { - g_led_control_registers[control_register] |= (1 << bit_value); - } else { - g_led_control_registers[control_register] &= ~(1 << bit_value); - } - - g_led_control_registers_update_required = true; -} - -void is31fl3218_update_pwm_buffers(void) { - if (g_pwm_buffer_update_required) { - is31fl3218_write_pwm_buffer(g_pwm_buffer); - // Load PWM registers and LED Control register data - is31fl3218_write_register(IS31FL3218_REG_UPDATE, 0x01); - - g_pwm_buffer_update_required = false; - } -} - -void is31fl3218_update_led_control_registers(void) { - if (g_led_control_registers_update_required) { - for (int i = 0; i < IS31FL3218_LED_CONTROL_REGISTER_COUNT; i++) { - is31fl3218_write_register(IS31FL3218_REG_LED_CONTROL_1 + i, g_led_control_registers[i]); - } - - g_led_control_registers_update_required = false; - } -} |