diff options
Diffstat (limited to 'drivers/led/issi/is31fl3736-simple.c')
| -rw-r--r-- | drivers/led/issi/is31fl3736-simple.c | 252 |
1 files changed, 0 insertions, 252 deletions
diff --git a/drivers/led/issi/is31fl3736-simple.c b/drivers/led/issi/is31fl3736-simple.c deleted file mode 100644 index e1cce3c48a..0000000000 --- a/drivers/led/issi/is31fl3736-simple.c +++ /dev/null @@ -1,252 +0,0 @@ -/* Copyright 2018 Jason Williams (Wilba) - * Copyright 2021 Doni Crosby - * - * 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 "is31fl3736-simple.h" -#include <string.h> -#include "i2c_master.h" -#include "wait.h" - -#define IS31FL3736_PWM_REGISTER_COUNT 192 // actually 96 -#define IS31FL3736_LED_CONTROL_REGISTER_COUNT 24 - -#ifndef IS31FL3736_I2C_TIMEOUT -# define IS31FL3736_I2C_TIMEOUT 100 -#endif - -#ifndef IS31FL3736_I2C_PERSISTENCE -# define IS31FL3736_I2C_PERSISTENCE 0 -#endif - -#ifndef IS31FL3736_PWM_FREQUENCY -# define IS31FL3736_PWM_FREQUENCY IS31FL3736_PWM_FREQUENCY_8K4_HZ // PFS - IS31FL3736B only -#endif - -#ifndef IS31FL3736_SW_PULLUP -# define IS31FL3736_SW_PULLUP IS31FL3736_PUR_0_OHM -#endif - -#ifndef IS31FL3736_CS_PULLDOWN -# define IS31FL3736_CS_PULLDOWN IS31FL3736_PDR_0_OHM -#endif - -#ifndef IS31FL3736_GLOBAL_CURRENT -# define IS31FL3736_GLOBAL_CURRENT 0xFF -#endif - -// Transfer buffer for TWITransmitData() -uint8_t g_twi_transfer_buffer[20]; - -// These buffers match the IS31FL3736 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 is31fl3736_write_pwm_buffer() but it's -// probably not worth the extra complexity. -uint8_t g_pwm_buffer[IS31FL3736_DRIVER_COUNT][IS31FL3736_PWM_REGISTER_COUNT]; -bool g_pwm_buffer_update_required[IS31FL3736_DRIVER_COUNT] = {false}; - -uint8_t g_led_control_registers[IS31FL3736_DRIVER_COUNT][IS31FL3736_LED_CONTROL_REGISTER_COUNT] = {0}; -bool g_led_control_registers_update_required[IS31FL3736_DRIVER_COUNT] = {false}; - -void is31fl3736_write_register(uint8_t addr, uint8_t reg, uint8_t data) { - g_twi_transfer_buffer[0] = reg; - g_twi_transfer_buffer[1] = data; - -#if IS31FL3736_I2C_PERSISTENCE > 0 - for (uint8_t i = 0; i < IS31FL3736_I2C_PERSISTENCE; i++) { - if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, IS31FL3736_I2C_TIMEOUT) == 0) break; - } -#else - i2c_transmit(addr << 1, g_twi_transfer_buffer, 2, IS31FL3736_I2C_TIMEOUT); -#endif -} - -void is31fl3736_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 < IS31FL3736_PWM_REGISTER_COUNT; 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 - memcpy(g_twi_transfer_buffer + 1, pwm_buffer + i, 16); - -#if IS31FL3736_I2C_PERSISTENCE > 0 - for (uint8_t i = 0; i < IS31FL3736_I2C_PERSISTENCE; i++) { - if (i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, IS31FL3736_I2C_TIMEOUT) == 0) break; - } -#else - i2c_transmit(addr << 1, g_twi_transfer_buffer, 17, IS31FL3736_I2C_TIMEOUT); -#endif - } -} - -void is31fl3736_init_drivers(void) { - i2c_init(); - - is31fl3736_init(IS31FL3736_I2C_ADDRESS_1); -#if defined(IS31FL3736_I2C_ADDRESS_2) - is31fl3736_init(IS31FL3736_I2C_ADDRESS_2); -# if defined(IS31FL3736_I2C_ADDRESS_3) - is31fl3736_init(IS31FL3736_I2C_ADDRESS_3); -# if defined(IS31FL3736_I2C_ADDRESS_4) - is31fl3736_init(IS31FL3736_I2C_ADDRESS_4); -# endif -# endif -#endif - - for (int i = 0; i < IS31FL3736_LED_COUNT; i++) { - is31fl3736_set_led_control_register(i, true); - } - - is31fl3736_update_led_control_registers(IS31FL3736_I2C_ADDRESS_1, 0); -#if defined(IS31FL3736_I2C_ADDRESS_2) - is31fl3736_update_led_control_registers(IS31FL3736_I2C_ADDRESS_2, 1); -# if defined(IS31FL3736_I2C_ADDRESS_3) - is31fl3736_update_led_control_registers(IS31FL3736_I2C_ADDRESS_3, 2); -# if defined(IS31FL3736_I2C_ADDRESS_4) - is31fl3736_update_led_control_registers(IS31FL3736_I2C_ADDRESS_4, 3); -# endif -# endif -#endif -} - -void is31fl3736_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. - is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC); - - // Select PG0 - is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, IS31FL3736_COMMAND_LED_CONTROL); - // Turn off all LEDs. - for (int i = 0; i < IS31FL3736_LED_CONTROL_REGISTER_COUNT; i++) { - is31fl3736_write_register(addr, i, 0x00); - } - - // Unlock the command register. - is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC); - - // Select PG1 - is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, IS31FL3736_COMMAND_PWM); - // Set PWM on all LEDs to 0 - // No need to setup Breath registers to PWM as that is the default. - for (int i = 0; i < IS31FL3736_PWM_REGISTER_COUNT; i++) { - is31fl3736_write_register(addr, i, 0x00); - } - - // Unlock the command register. - is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC); - - // Select PG3 - is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, IS31FL3736_COMMAND_FUNCTION); - // Set de-ghost pull-up resistors (SWx) - is31fl3736_write_register(addr, IS31FL3736_FUNCTION_REG_SW_PULLUP, IS31FL3736_SW_PULLUP); - // Set de-ghost pull-down resistors (CSx) - is31fl3736_write_register(addr, IS31FL3736_FUNCTION_REG_CS_PULLDOWN, IS31FL3736_CS_PULLDOWN); - // Set global current to maximum. - is31fl3736_write_register(addr, IS31FL3736_FUNCTION_REG_GLOBAL_CURRENT, IS31FL3736_GLOBAL_CURRENT); - // Disable software shutdown. - is31fl3736_write_register(addr, IS31FL3736_FUNCTION_REG_CONFIGURATION, ((IS31FL3736_PWM_FREQUENCY & 0b111) << 3) | 0x01); - - // Wait 10ms to ensure the device has woken up. - wait_ms(10); -} - -void is31fl3736_set_value(int index, uint8_t value) { - is31fl3736_led_t led; - if (index >= 0 && index < IS31FL3736_LED_COUNT) { - memcpy_P(&led, (&g_is31fl3736_leds[index]), sizeof(led)); - - if (g_pwm_buffer[led.driver][led.v] == value) { - return; - } - g_pwm_buffer[led.driver][led.v] = value; - g_pwm_buffer_update_required[led.driver] = true; - } -} - -void is31fl3736_set_value_all(uint8_t value) { - for (int i = 0; i < IS31FL3736_LED_COUNT; i++) { - is31fl3736_set_value(i, value); - } -} - -void is31fl3736_set_led_control_register(uint8_t index, bool value) { - is31fl3736_led_t led; - memcpy_P(&led, (&g_is31fl3736_leds[index]), sizeof(led)); - - // The PWM register for a matrix position (0x00 to 0xBF) is interleaved, so: - // A1=0x00 A2=0x02 A3=0x04 A4=0x06 A5=0x08 A6=0x0A A7=0x0C A8=0x0E - // B1=0x10 B2=0x12 B3=0x14 - // But also, the LED control registers (0x00 to 0x17) are also interleaved, so: - // A1-A4=0x00 A5-A8=0x01 - - uint8_t control_register = led.v / 8; - uint8_t bit_value = led.v % 8; - - if (value) { - g_led_control_registers[led.driver][control_register] |= (1 << bit_value); - } else { - g_led_control_registers[led.driver][control_register] &= ~(1 << bit_value); - } - - g_led_control_registers_update_required[led.driver] = true; -} - -void is31fl3736_update_pwm_buffers(uint8_t addr, uint8_t index) { - if (g_pwm_buffer_update_required[index]) { - // Firstly we need to unlock the command register and select PG1 - is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC); - is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, IS31FL3736_COMMAND_PWM); - - is31fl3736_write_pwm_buffer(addr, g_pwm_buffer[index]); - g_pwm_buffer_update_required[index] = false; - } -} - -void is31fl3736_update_led_control_registers(uint8_t addr, uint8_t index) { - if (g_led_control_registers_update_required[index]) { - // Firstly we need to unlock the command register and select PG0 - is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND_WRITE_LOCK, IS31FL3736_COMMAND_WRITE_LOCK_MAGIC); - is31fl3736_write_register(addr, IS31FL3736_REG_COMMAND, IS31FL3736_COMMAND_LED_CONTROL); - for (int i = 0; i < IS31FL3736_LED_CONTROL_REGISTER_COUNT; i++) { - is31fl3736_write_register(addr, i, g_led_control_registers[index][i]); - } - g_led_control_registers_update_required[index] = false; - } -} - -void is31fl3736_flush(void) { - is31fl3736_update_pwm_buffers(IS31FL3736_I2C_ADDRESS_1, 0); -#if defined(IS31FL3736_I2C_ADDRESS_2) - is31fl3736_update_pwm_buffers(IS31FL3736_I2C_ADDRESS_2, 1); -# if defined(IS31FL3736_I2C_ADDRESS_3) - is31fl3736_update_pwm_buffers(IS31FL3736_I2C_ADDRESS_3, 2); -# if defined(IS31FL3736_I2C_ADDRESS_4) - is31fl3736_update_pwm_buffers(IS31FL3736_I2C_ADDRESS_4, 3); -# endif -# endif -#endif -} |