mirror of
https://github.com/Keychron/qmk_firmware.git
synced 2024-11-26 02:17:38 +06:00
236 lines
8.1 KiB
C
236 lines
8.1 KiB
C
/* Copyright 2021 @ Keychron (https://www.keychron.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 "snled27351-simple-spi.h"
|
|
#include "spi_master.h"
|
|
|
|
#define SNLED27351_PWM_REGISTER_COUNT 192
|
|
#define SNLED27351_LED_CONTROL_REGISTER_COUNT 24
|
|
|
|
|
|
#ifndef SNLED27351_PHASE_CHANNEL
|
|
# define SNLED27351_PHASE_CHANNEL MSKPHASE_12CHANNEL
|
|
#endif
|
|
|
|
#ifndef SNLED27351_CURRENT_TUNE
|
|
# define SNLED27351_CURRENT_TUNE \
|
|
{ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }
|
|
#endif
|
|
|
|
#define SNLED27351_WRITE (0 << 7)
|
|
#define SNLED27351_READ (1 << 7)
|
|
#define SNLED27351_PATTERN (2 << 4)
|
|
|
|
#ifdef DRIVER_CS_PINS
|
|
pin_t cs_pins[] = DRIVER_CS_PINS;
|
|
#else
|
|
error "no DRIVER_CS_PINS defined"
|
|
#endif
|
|
|
|
// These buffers match the snled27351 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 snled27351_write_pwm_buffer() but it's
|
|
// probably not worth the extra complexity.
|
|
uint8_t g_pwm_buffer[SNLED27351_DRIVER_COUNT][SNLED27351_PWM_REGISTER_COUNT];
|
|
bool g_pwm_buffer_update_required[SNLED27351_DRIVER_COUNT] = {false};
|
|
|
|
uint8_t g_led_control_registers[SNLED27351_DRIVER_COUNT][SNLED27351_LED_CONTROL_REGISTER_COUNT] = {0};
|
|
bool g_led_control_registers_update_required[SNLED27351_DRIVER_COUNT] = {false};
|
|
|
|
|
|
|
|
bool snled27351_write(uint8_t index, uint8_t page, uint8_t reg, uint8_t *data, uint8_t len) {
|
|
static uint8_t spi_transfer_buffer[2] = {0};
|
|
|
|
if (index > ARRAY_SIZE(((pin_t[])DRIVER_CS_PINS)) - 1) return false;
|
|
|
|
if (!spi_start(cs_pins[index], false, 0, SNLED23751_SPI_DIVISOR)) {
|
|
spi_stop();
|
|
return false;
|
|
}
|
|
|
|
spi_transfer_buffer[0] = SNLED27351_WRITE | SNLED27351_PATTERN | (page & 0x0F);
|
|
spi_transfer_buffer[1] = reg;
|
|
|
|
if (spi_transmit(spi_transfer_buffer, 2) != SPI_STATUS_SUCCESS) {
|
|
spi_stop();
|
|
return false;
|
|
}
|
|
|
|
if (spi_transmit(data, len) != SPI_STATUS_SUCCESS) {
|
|
spi_stop();
|
|
return false;
|
|
}
|
|
|
|
spi_stop();
|
|
return true;
|
|
}
|
|
|
|
bool snled27351_write_register(uint8_t index, uint8_t page, uint8_t reg, uint8_t data) {
|
|
return snled27351_write(index, page, reg, &data, 1);
|
|
}
|
|
|
|
bool snled27351_write_pwm_buffer(uint8_t index, uint8_t *pwm_buffer) {
|
|
if (g_pwm_buffer_update_required[index]) {
|
|
snled27351_write(index, LED_PWM_PAGE, 0, g_pwm_buffer[index], SNLED27351_PWM_REGISTER_COUNT);
|
|
}
|
|
g_pwm_buffer_update_required[index] = false;
|
|
return true;
|
|
}
|
|
|
|
void snled27351_init_drivers(void) {
|
|
#if defined(LED_DRIVER_SHUTDOWN_PIN)
|
|
setPinOutput(LED_DRIVER_SHUTDOWN_PIN);
|
|
writePinHigh(LED_DRIVER_SHUTDOWN_PIN);
|
|
#endif
|
|
|
|
spi_init();
|
|
|
|
for (uint8_t i = 0; i < SNLED27351_DRIVER_COUNT; i++)
|
|
snled27351_init(i);
|
|
|
|
for (int index = 0; index < SNLED27351_LED_COUNT; index++) {
|
|
snled27351_set_led_control_register(index, true);
|
|
}
|
|
|
|
for (uint8_t i = 0; i < SNLED27351_DRIVER_COUNT; i++)
|
|
snled27351_update_led_control_registers(i);
|
|
}
|
|
|
|
void snled27351_init(uint8_t index) {
|
|
setPinOutput(cs_pins[index]);
|
|
writePinHigh(cs_pins[index]);
|
|
// Setting LED driver to shutdown mode
|
|
snled27351_write_register(index, FUNCTION_PAGE, CONFIGURATION_REG, MSKSW_SHUT_DOWN_MODE);
|
|
// Setting internal channel pulldown/pullup
|
|
snled27351_write_register(index, FUNCTION_PAGE, PDU_REG, MSKSET_CA_CB_CHANNEL);
|
|
// Select number of scan phase
|
|
snled27351_write_register(index, FUNCTION_PAGE, SCAN_PHASE_REG, SNLED27351_PHASE_CHANNEL);
|
|
// Setting PWM Delay Phase
|
|
snled27351_write_register(index, FUNCTION_PAGE, SLEW_RATE_CONTROL_MODE1_REG, MSKPWM_DELAY_PHASE_ENABLE);
|
|
// Setting Driving/Sinking Channel Slew Rate
|
|
snled27351_write_register(index, FUNCTION_PAGE, SLEW_RATE_CONTROL_MODE2_REG, MSKDRIVING_SINKING_CHHANNEL_SLEWRATE_ENABLE);
|
|
// Setting Iref
|
|
snled27351_write_register(index, FUNCTION_PAGE, SOFTWARE_SLEEP_REG, MSKSLEEP_DISABLE);
|
|
|
|
// Set LED CONTROL PAGE (Page 0)
|
|
uint8_t on_off_reg[LED_CONTROL_ON_OFF_LENGTH] = {0};
|
|
snled27351_write(index, LED_CONTROL_PAGE, 0, on_off_reg, LED_CONTROL_ON_OFF_LENGTH);
|
|
|
|
// Set PWM PAGE (Page 1)
|
|
uint8_t pwm_reg[LED_PWM_LENGTH];
|
|
memset(pwm_reg, 0, LED_PWM_LENGTH);
|
|
snled27351_write(index, LED_PWM_PAGE, 0, pwm_reg, LED_PWM_LENGTH);
|
|
|
|
// Set CURRENT PAGE (Page 4)
|
|
uint8_t current_tune_reg[LED_CURRENT_TUNE_LENGTH] = SNLED27351_CURRENT_TUNE;
|
|
snled27351_write(index, CURRENT_TUNE_PAGE, 0, current_tune_reg, LED_CURRENT_TUNE_LENGTH);
|
|
|
|
// // Enable LEDs ON/OFF
|
|
// memset(on_off_reg, 0xFF, LED_CONTROL_ON_OFF_LENGTH);
|
|
// snled27351_write(index, LED_CONTROL_PAGE, 0, on_off_reg, LED_CONTROL_ON_OFF_LENGTH);
|
|
|
|
// Setting LED driver to normal mode
|
|
snled27351_write_register(index, FUNCTION_PAGE, CONFIGURATION_REG, MSKSW_NORMAL_MODE);
|
|
}
|
|
|
|
void snled27351_set_value(int index, uint8_t value) {
|
|
snled27351_led_t led;
|
|
if (index >= 0 && index < SNLED27351_LED_COUNT) {
|
|
memcpy_P(&led, (&g_snled27351_leds[index]), sizeof(led));
|
|
|
|
g_pwm_buffer[led.driver][led.v] = value;
|
|
g_pwm_buffer_update_required[led.driver] = true;
|
|
}
|
|
}
|
|
|
|
void snled27351_set_value_all(uint8_t value) {
|
|
for (int i = 0; i < SNLED27351_LED_COUNT; i++) {
|
|
snled27351_set_value(i, value);
|
|
}
|
|
}
|
|
|
|
void snled27351_set_led_control_register(uint8_t index, bool value) {
|
|
snled27351_led_t led;
|
|
memcpy_P(&led, (&g_snled27351_leds[index]), sizeof(led));
|
|
|
|
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 snled27351_update_pwm_buffers(uint8_t index) {
|
|
if (g_pwm_buffer_update_required[index]) {
|
|
if (!snled27351_write_pwm_buffer(index, g_pwm_buffer[index])) {
|
|
g_led_control_registers_update_required[index] = true;
|
|
}
|
|
}
|
|
g_pwm_buffer_update_required[index] = false;
|
|
}
|
|
|
|
void snled27351_update_led_control_registers(uint8_t index) {
|
|
if (g_led_control_registers_update_required[index]) {
|
|
snled27351_write(index, LED_CONTROL_PAGE, 0, g_led_control_registers[index], 24);
|
|
}
|
|
g_led_control_registers_update_required[index] = false;
|
|
}
|
|
|
|
void snled27351_flush(void) {
|
|
for (uint8_t i = 0; i < SNLED27351_DRIVER_COUNT; i++)
|
|
snled27351_update_pwm_buffers(i);
|
|
}
|
|
|
|
void snled27351_shutdown(void) {
|
|
# if defined(LED_DRIVER_SHUTDOWN_PIN)
|
|
writePinLow(LED_DRIVER_SHUTDOWN_PIN);
|
|
# else
|
|
for (uint8_t i = 0; i < SNLED27351_DRIVER_COUNT; i++)
|
|
snled27351_sw_shutdown(i);
|
|
# endif
|
|
}
|
|
|
|
void snled27351_exit_shutdown(void) {
|
|
# if defined(LED_DRIVER_SHUTDOWN_PIN)
|
|
writePinHigh(LED_DRIVER_SHUTDOWN_PIN);
|
|
# else
|
|
for (uint8_t i = 0; i < SNLED27351_DRIVER_COUNT; i++)
|
|
snled27351_sw_return_normal(i);
|
|
# endif
|
|
}
|
|
|
|
void snled27351_sw_return_normal(uint8_t index) {
|
|
// Select to function page
|
|
// Setting LED driver to normal mode
|
|
snled27351_write_register(index, FUNCTION_PAGE, CONFIGURATION_REG, MSKSW_NORMAL_MODE);
|
|
}
|
|
|
|
void snled27351_sw_shutdown(uint8_t index) {
|
|
// Select to function page
|
|
// Setting LED driver to shutdown mode
|
|
snled27351_write_register(index, FUNCTION_PAGE, CONFIGURATION_REG, MSKSW_SHUT_DOWN_MODE);
|
|
// Write SW Sleep Register
|
|
snled27351_write_register(index, FUNCTION_PAGE, SOFTWARE_SLEEP_REG, MSKSLEEP_ENABLE);
|
|
}
|