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path: root/drivers/led/issi/is31fl3731-simple.c
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Diffstat (limited to 'drivers/led/issi/is31fl3731-simple.c')
-rw-r--r--drivers/led/issi/is31fl3731-simple.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/drivers/led/issi/is31fl3731-simple.c b/drivers/led/issi/is31fl3731-simple.c
index d295772f5e..f51e2e38af 100644
--- a/drivers/led/issi/is31fl3731-simple.c
+++ b/drivers/led/issi/is31fl3731-simple.c
@@ -1,6 +1,7 @@
/* Copyright 2017 Jason Williams
* Copyright 2018 Jack Humbert
* Copyright 2019 Clueboard
+ * 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
@@ -40,6 +41,9 @@
#define ISSI_REG_PICTUREFRAME 0x01
+// Not defined in the datasheet -- See AN for IC
+#define ISSI_REG_GHOST_IMAGE_PREVENTION 0xC2 // Set bit 4 to enable de-ghosting
+
#define ISSI_REG_SHUTDOWN 0x0A
#define ISSI_REG_AUDIOSYNC 0x06
@@ -144,6 +148,9 @@ void IS31FL3731_init(uint8_t addr) {
// enable software shutdown
IS31FL3731_write_register(addr, ISSI_REG_SHUTDOWN, 0x00);
+#ifdef ISSI_3731_DEGHOST // set to enable de-ghosting of the array
+ IS31FL3731_write_register(addr, ISSI_REG_GHOST_IMAGE_PREVENTION, 0x10);
+#endif
// this delay was copied from other drivers, might not be needed
wait_ms(10);
@@ -186,8 +193,9 @@ void IS31FL3731_init(uint8_t addr) {
}
void IS31FL3731_set_value(int index, uint8_t value) {
+ is31_led led;
if (index >= 0 && index < DRIVER_LED_TOTAL) {
- is31_led led = g_is31_leds[index];
+ memcpy_P(&led, (&g_is31_leds[index]), sizeof(led));
// Subtract 0x24 to get the second index of g_pwm_buffer
g_pwm_buffer[led.driver][led.v - 0x24] = value;
@@ -202,7 +210,8 @@ void IS31FL3731_set_value_all(uint8_t value) {
}
void IS31FL3731_set_led_control_register(uint8_t index, bool value) {
- is31_led led = g_is31_leds[index];
+ is31_led led;
+ memcpy_P(&led, (&g_is31_leds[index]), sizeof(led));
uint8_t control_register = (led.v - 0x24) / 8;
uint8_t bit_value = (led.v - 0x24) % 8;