aboutsummaryrefslogtreecommitdiff
path: root/drivers/led/issi/is31fl3236.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/led/issi/is31fl3236.c')
-rw-r--r--drivers/led/issi/is31fl3236.c172
1 files changed, 172 insertions, 0 deletions
diff --git a/drivers/led/issi/is31fl3236.c b/drivers/led/issi/is31fl3236.c
new file mode 100644
index 0000000000..b8aa9c34b1
--- /dev/null
+++ b/drivers/led/issi/is31fl3236.c
@@ -0,0 +1,172 @@
+// Copyright 2024 QMK
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "is31fl3236.h"
+#include "i2c_master.h"
+#include "gpio.h"
+
+#define IS31FL3236_PWM_REGISTER_COUNT 36
+#define IS31FL3236_LED_CONTROL_REGISTER_COUNT 36
+
+#ifndef IS31FL3236_I2C_TIMEOUT
+# define IS31FL3236_I2C_TIMEOUT 100
+#endif
+
+#ifndef IS31FL3236_I2C_PERSISTENCE
+# define IS31FL3236_I2C_PERSISTENCE 0
+#endif
+
+#ifndef IS31FL3236_PWM_FREQUENCY
+# define IS31FL3236_PWM_FREQUENCY IS31FL3236_PWM_FREQUENCY_3K_HZ // OFS - IS31FL3236A only
+#endif
+
+const uint8_t i2c_addresses[IS31FL3236_DRIVER_COUNT] = {
+ IS31FL3236_I2C_ADDRESS_1,
+#ifdef IS31FL3236_I2C_ADDRESS_2
+ IS31FL3236_I2C_ADDRESS_2,
+# ifdef IS31FL3236_I2C_ADDRESS_3
+ IS31FL3236_I2C_ADDRESS_3,
+# ifdef IS31FL3236_I2C_ADDRESS_4
+ IS31FL3236_I2C_ADDRESS_4,
+# endif
+# endif
+#endif
+};
+
+typedef struct is31fl3236_driver_t {
+ uint8_t pwm_buffer[IS31FL3236_PWM_REGISTER_COUNT];
+ bool pwm_buffer_dirty;
+ uint8_t led_control_buffer[IS31FL3236_LED_CONTROL_REGISTER_COUNT];
+ bool led_control_buffer_dirty;
+} PACKED is31fl3236_driver_t;
+
+is31fl3236_driver_t driver_buffers[IS31FL3236_DRIVER_COUNT] = {{
+ .pwm_buffer = {0},
+ .pwm_buffer_dirty = false,
+ .led_control_buffer = {0},
+ .led_control_buffer_dirty = false,
+}};
+
+void is31fl3236_write_register(uint8_t index, uint8_t reg, uint8_t data) {
+#if IS31FL3236_I2C_PERSISTENCE > 0
+ for (uint8_t i = 0; i < IS31FL3236_I2C_PERSISTENCE; i++) {
+ if (i2c_write_register(i2c_addresses[index] << 1, reg, &data, 1, IS31FL3236_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+ }
+#else
+ i2c_write_register(i2c_addresses[index] << 1, reg, &data, 1, IS31FL3236_I2C_TIMEOUT);
+#endif
+}
+
+void is31fl3236_write_pwm_buffer(uint8_t index) {
+#if IS31FL3236_I2C_PERSISTENCE > 0
+ for (uint8_t i = 0; i < IS31FL3236_I2C_PERSISTENCE; i++) {
+ if (i2c_write_register(i2c_addresses[index] << 1, IS31FL3236_REG_PWM, driver_buffers[index].pwm_buffer, 36, IS31FL3236_I2C_TIMEOUT) == I2C_STATUS_SUCCESS) break;
+ }
+#else
+ i2c_write_register(i2c_addresses[index] << 1, IS31FL3236_REG_PWM, driver_buffers[index].pwm_buffer, 36, IS31FL3236_I2C_TIMEOUT);
+#endif
+}
+
+void is31fl3236_init_drivers(void) {
+ i2c_init();
+
+#if defined(IS31FL3236_SDB_PIN)
+ gpio_set_pin_output(IS31FL3236_SDB_PIN);
+ gpio_write_pin_high(IS31FL3236_SDB_PIN);
+#endif
+
+ for (uint8_t i = 0; i < IS31FL3236_DRIVER_COUNT; i++) {
+ is31fl3236_init(i);
+ }
+
+ for (uint8_t i = 0; i < IS31FL3236_LED_COUNT; i++) {
+ is31fl3236_set_led_control_register(i, true, true, true);
+ }
+
+ for (uint8_t i = 0; i < IS31FL3236_DRIVER_COUNT; i++) {
+ is31fl3236_update_led_control_registers(i);
+ }
+}
+
+void is31fl3236_init(uint8_t index) {
+ // In case we ever want to reinitialize (?)
+ is31fl3236_write_register(index, IS31FL3236_REG_RESET, 0x00);
+
+ // Turn off software shutdown
+ is31fl3236_write_register(index, IS31FL3236_REG_SHUTDOWN, 0x01);
+
+ // Set all PWM values to zero
+ for (uint8_t i = 0; i < IS31FL3236_PWM_REGISTER_COUNT; i++) {
+ is31fl3236_write_register(index, IS31FL3236_REG_PWM + i, 0x00);
+ }
+
+ // turn off all LEDs in the LED control register
+ for (uint8_t i = 0; i < IS31FL3236_LED_CONTROL_REGISTER_COUNT; i++) {
+ is31fl3236_write_register(index, IS31FL3236_REG_LED_CONTROL + i, 0x00);
+ }
+
+ // Set PWM frequency (IS31FL3236A)
+ is31fl3236_write_register(index, IS31FL3236_REG_PWM_FREQUENCY, IS31FL3236_PWM_FREQUENCY);
+
+ // Load PWM registers and LED Control register data
+ is31fl3236_write_register(index, IS31FL3236_REG_UPDATE, 0x01);
+}
+
+void is31fl3236_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
+ is31fl3236_led_t led;
+
+ if (index < IS31FL3236_LED_COUNT) {
+ memcpy_P(&led, (&g_is31fl3236_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 is31fl3236_set_color_all(uint8_t red, uint8_t green, uint8_t blue) {
+ for (uint8_t i = 0; i < IS31FL3236_LED_COUNT; i++) {
+ is31fl3236_set_color(i, red, green, blue);
+ }
+}
+
+void is31fl3236_set_led_control_register(uint8_t index, bool red, bool green, bool blue) {
+ is31fl3236_led_t led;
+ memcpy_P(&led, (&g_is31fl3236_leds[index]), sizeof(led));
+
+ driver_buffers[led.driver].led_control_buffer[led.r] = red ? 0x01 : 0x00;
+ driver_buffers[led.driver].led_control_buffer[led.g] = green ? 0x01 : 0x00;
+ driver_buffers[led.driver].led_control_buffer[led.b] = blue ? 0x01 : 0x00;
+ driver_buffers[led.driver].led_control_buffer_dirty = true;
+}
+
+void is31fl3236_update_pwm_buffers(uint8_t index) {
+ if (driver_buffers[index].pwm_buffer_dirty) {
+ is31fl3236_write_pwm_buffer(index);
+ // Load PWM registers and LED Control register data
+ is31fl3236_write_register(index, IS31FL3236_REG_UPDATE, 0x01);
+
+ driver_buffers[index].pwm_buffer_dirty = false;
+ }
+}
+
+void is31fl3236_update_led_control_registers(uint8_t index) {
+ if (driver_buffers[index].led_control_buffer_dirty) {
+ for (uint8_t i = 0; i < IS31FL3236_LED_CONTROL_REGISTER_COUNT; i++) {
+ is31fl3236_write_register(index, IS31FL3236_REG_LED_CONTROL + i, driver_buffers[index].led_control_buffer[i]);
+ }
+
+ driver_buffers[index].led_control_buffer_dirty = false;
+ }
+}
+
+void is31fl3236_flush(void) {
+ for (uint8_t i = 0; i < IS31FL3236_DRIVER_COUNT; i++) {
+ is31fl3236_update_pwm_buffers(i);
+ }
+}