forked from mirrors/qmk_firmware
f6709e65eb
Co-authored-by: Xelus22 <preyas22@gmail.com> Co-authored-by: dexter93 <d3xter93@gmail.com>
226 lines
8.1 KiB
C
226 lines
8.1 KiB
C
/* Copyright 2024 HorrorTroll <https://github.com/HorrorTroll>
|
|
* Copyright 2024 Harrison Chan (Xelus)
|
|
* Copyright 2024 Dimitris Mantzouranis <d3xter93@gmail.com>
|
|
*
|
|
* 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 "is31fl3729.h"
|
|
#include "i2c_master.h"
|
|
#include "wait.h"
|
|
|
|
#define IS31FL3729_PWM_REGISTER_COUNT 143
|
|
#define IS31FL3729_SCALING_REGISTER_COUNT 16
|
|
|
|
#ifndef IS31FL3729_I2C_TIMEOUT
|
|
# define IS31FL3729_I2C_TIMEOUT 100
|
|
#endif
|
|
|
|
#ifndef IS31FL3729_I2C_PERSISTENCE
|
|
# define IS31FL3729_I2C_PERSISTENCE 0
|
|
#endif
|
|
|
|
#ifndef IS31FL3729_CONFIGURATION
|
|
# define IS31FL3729_CONFIGURATION IS31FL3729_CONFIG_SWS_15_9
|
|
#endif
|
|
|
|
#ifndef IS31FL3729_GLOBAL_CURRENT
|
|
# define IS31FL3729_GLOBAL_CURRENT 0x40
|
|
#endif
|
|
|
|
#ifndef IS31FL3729_PULLDOWNUP
|
|
# define IS31FL3729_PULLDOWNUP 0x33
|
|
#endif
|
|
|
|
#ifndef IS31FL3729_SPREAD_SPECTRUM
|
|
# define IS31FL3729_SPREAD_SPECTRUM IS31FL3729_SSP_DISABLE
|
|
#endif
|
|
|
|
#ifndef IS31FL3729_SPREAD_SPECTRUM_RANGE
|
|
# define IS31FL3729_SPREAD_SPECTRUM_RANGE IS31FL3729_RNG_5_PERCENT
|
|
#endif
|
|
|
|
#ifndef IS31FL3729_SPREAD_SPECTRUM_CYCLE_TIME
|
|
# define IS31FL3729_SPREAD_SPECTRUM_CYCLE_TIME IS31FL3729_CLT_1980_US
|
|
#endif
|
|
|
|
#ifndef IS31FL3729_PWM_FREQUENCY
|
|
# define IS31FL3729_PWM_FREQUENCY IS31FL3729_PWM_FREQUENCY_32K_HZ
|
|
#endif
|
|
|
|
// These buffers match the PWM & scaling registers.
|
|
// Storing them like this is optimal for I2C transfers to the registers.
|
|
typedef struct is31fl3729_driver_t {
|
|
uint8_t pwm_buffer[IS31FL3729_PWM_REGISTER_COUNT];
|
|
bool pwm_buffer_dirty;
|
|
uint8_t scaling_buffer[IS31FL3729_SCALING_REGISTER_COUNT];
|
|
bool scaling_buffer_dirty;
|
|
} PACKED is31fl3729_driver_t;
|
|
|
|
is31fl3729_driver_t driver_buffers[IS31FL3729_DRIVER_COUNT] = {{
|
|
.pwm_buffer = {0},
|
|
.pwm_buffer_dirty = false,
|
|
.scaling_buffer = {0},
|
|
.scaling_buffer_dirty = false,
|
|
}};
|
|
|
|
void is31fl3729_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
|
|
#if IS31FL3729_I2C_PERSISTENCE > 0
|
|
for (uint8_t i = 0; i < IS31FL3729_I2C_PERSISTENCE; i++) {
|
|
if (i2c_write_register(addr << 1, reg, &data, 1, IS31FL3729_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
|
|
}
|
|
#else
|
|
i2c_write_register(addr << 1, reg, &data, 1, IS31FL3729_I2C_TIMEOUT);
|
|
#endif
|
|
}
|
|
|
|
void is31fl3729_write_pwm_buffer(uint8_t addr, uint8_t index) {
|
|
// Transmit PWM registers in 9 transfers of 16 bytes.
|
|
|
|
// Iterate over the pwm_buffer contents at 16 byte intervals.
|
|
for (uint8_t i = 0; i <= IS31FL3729_PWM_REGISTER_COUNT; i += 16) {
|
|
#if IS31FL3729_I2C_PERSISTENCE > 0
|
|
for (uint8_t j = 0; j < IS31FL3729_I2C_PERSISTENCE; j++) {
|
|
if (i2c_write_register(addr << 1, i, driver_buffers[index].pwm_buffer + i, 16, IS31FL3729_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
|
|
}
|
|
#else
|
|
i2c_write_register(addr << 1, i, driver_buffers[index].pwm_buffer + i, 16, IS31FL3729_I2C_TIMEOUT);
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void is31fl3729_init_drivers(void) {
|
|
i2c_init();
|
|
|
|
is31fl3729_init(IS31FL3729_I2C_ADDRESS_1);
|
|
#if defined(IS31FL3729_I2C_ADDRESS_2)
|
|
is31fl3729_init(IS31FL3729_I2C_ADDRESS_2);
|
|
# if defined(IS31FL3729_I2C_ADDRESS_3)
|
|
is31fl3729_init(IS31FL3729_I2C_ADDRESS_3);
|
|
# if defined(IS31FL3729_I2C_ADDRESS_4)
|
|
is31fl3729_init(IS31FL3729_I2C_ADDRESS_4);
|
|
# endif
|
|
# endif
|
|
#endif
|
|
|
|
for (int i = 0; i < IS31FL3729_LED_COUNT; i++) {
|
|
is31fl3729_set_scaling_register(i, 0xFF, 0xFF, 0xFF);
|
|
}
|
|
|
|
is31fl3729_update_scaling_registers(IS31FL3729_I2C_ADDRESS_1, 0);
|
|
#if defined(IS31FL3729_I2C_ADDRESS_2)
|
|
is31fl3729_update_scaling_registers(IS31FL3729_I2C_ADDRESS_2, 1);
|
|
# if defined(IS31FL3729_I2C_ADDRESS_3)
|
|
is31fl3729_update_scaling_registers(IS31FL3729_I2C_ADDRESS_3, 2);
|
|
# if defined(IS31FL3729_I2C_ADDRESS_4)
|
|
is31fl3729_update_scaling_registers(IS31FL3729_I2C_ADDRESS_4, 3);
|
|
# endif
|
|
# endif
|
|
#endif
|
|
}
|
|
|
|
void is31fl3729_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.
|
|
|
|
// Set Pull up & Down for SWx CSy
|
|
is31fl3729_write_register(addr, IS31FL3729_REG_PULLDOWNUP, IS31FL3729_PULLDOWNUP);
|
|
|
|
// Set Spread Spectrum Register if applicable
|
|
is31fl3729_write_register(addr, IS31FL3729_REG_SPREAD_SPECTRUM, ((IS31FL3729_SPREAD_SPECTRUM & 0b1) << 4) | ((IS31FL3729_SPREAD_SPECTRUM_RANGE & 0b11) << 2) | (IS31FL3729_SPREAD_SPECTRUM_CYCLE_TIME & 0b11));
|
|
|
|
// Set PWM Frequency Register if applicable
|
|
is31fl3729_write_register(addr, IS31FL3729_REG_PWM_FREQUENCY, IS31FL3729_PWM_FREQUENCY);
|
|
|
|
// Set Golbal Current Control Register
|
|
is31fl3729_write_register(addr, IS31FL3729_REG_GLOBAL_CURRENT, IS31FL3729_GLOBAL_CURRENT);
|
|
|
|
// Set to Normal operation
|
|
is31fl3729_write_register(addr, IS31FL3729_REG_CONFIGURATION, IS31FL3729_CONFIGURATION);
|
|
|
|
// Wait 10ms to ensure the device has woken up.
|
|
wait_ms(10);
|
|
}
|
|
|
|
void is31fl3729_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
|
|
is31fl3729_led_t led;
|
|
if (index >= 0 && index < IS31FL3729_LED_COUNT) {
|
|
memcpy_P(&led, (&g_is31fl3729_leds[index]), sizeof(led));
|
|
|
|
if (driver_buffers[led.driver].pwm_buffer[led.r] == red && driver_buffers[led.driver].pwm_buffer[led.g] == green && driver_buffers[led.driver].pwm_buffer[led.b] == blue) {
|
|
return;
|
|
}
|
|
|
|
driver_buffers[led.driver].pwm_buffer[led.r] = red;
|
|
driver_buffers[led.driver].pwm_buffer[led.g] = green;
|
|
driver_buffers[led.driver].pwm_buffer[led.b] = blue;
|
|
driver_buffers[led.driver].pwm_buffer_dirty = true;
|
|
}
|
|
}
|
|
|
|
void is31fl3729_set_color_all(uint8_t red, uint8_t green, uint8_t blue) {
|
|
for (int i = 0; i < IS31FL3729_LED_COUNT; i++) {
|
|
is31fl3729_set_color(i, red, green, blue);
|
|
}
|
|
}
|
|
|
|
void is31fl3729_set_scaling_register(uint8_t index, uint8_t red, uint8_t green, uint8_t blue) {
|
|
is31fl3729_led_t led;
|
|
memcpy_P(&led, (&g_is31fl3729_leds[index]), sizeof(led));
|
|
|
|
// need to do a bit of checking here since 3729 scaling is per CS pin.
|
|
// not the usual per RGB key as per other ISSI drivers
|
|
// only enable them, since they should be default disabled
|
|
int cs_red = (led.r & 0x0F) - 1;
|
|
int cs_green = (led.g & 0x0F) - 1;
|
|
int cs_blue = (led.b & 0x0F) - 1;
|
|
|
|
driver_buffers[led.driver].scaling_buffer[cs_red] = red;
|
|
driver_buffers[led.driver].scaling_buffer[cs_green] = green;
|
|
driver_buffers[led.driver].scaling_buffer[cs_blue] = blue;
|
|
driver_buffers[led.driver].scaling_buffer_dirty = true;
|
|
}
|
|
|
|
void is31fl3729_update_pwm_buffers(uint8_t addr, uint8_t index) {
|
|
if (driver_buffers[index].pwm_buffer_dirty) {
|
|
is31fl3729_write_pwm_buffer(addr, index);
|
|
|
|
driver_buffers[index].pwm_buffer_dirty = false;
|
|
}
|
|
}
|
|
|
|
void is31fl3729_update_scaling_registers(uint8_t addr, uint8_t index) {
|
|
if (driver_buffers[index].scaling_buffer_dirty) {
|
|
for (uint8_t i = 0; i < IS31FL3729_SCALING_REGISTER_COUNT; i++) {
|
|
is31fl3729_write_register(addr, IS31FL3729_REG_SCALING + i, driver_buffers[index].scaling_buffer[i]);
|
|
}
|
|
|
|
driver_buffers[index].scaling_buffer_dirty = false;
|
|
}
|
|
}
|
|
|
|
void is31fl3729_flush(void) {
|
|
is31fl3729_update_pwm_buffers(IS31FL3729_I2C_ADDRESS_1, 0);
|
|
#if defined(IS31FL3729_I2C_ADDRESS_2)
|
|
is31fl3729_update_pwm_buffers(IS31FL3729_I2C_ADDRESS_2, 1);
|
|
# if defined(IS31FL3729_I2C_ADDRESS_3)
|
|
is31fl3729_update_pwm_buffers(IS31FL3729_I2C_ADDRESS_3, 2);
|
|
# if defined(IS31FL3729_I2C_ADDRESS_4)
|
|
is31fl3729_update_pwm_buffers(IS31FL3729_I2C_ADDRESS_4, 3);
|
|
# endif
|
|
# endif
|
|
#endif
|
|
}
|