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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.c54
1 files changed, 29 insertions, 25 deletions
diff --git a/drivers/led/issi/is31fl3731-simple.c b/drivers/led/issi/is31fl3731-simple.c
index a62b21cc6b..f7f6980a3b 100644
--- a/drivers/led/issi/is31fl3731-simple.c
+++ b/drivers/led/issi/is31fl3731-simple.c
@@ -64,7 +64,7 @@ uint8_t g_twi_transfer_buffer[20];
// These buffers match the IS31FL3731 PWM registers 0x24-0xB3.
// 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 IS31FL3731_write_pwm_buffer() but it's
+// buffers and the transfers in is31fl3731_write_pwm_buffer() but it's
// probably not worth the extra complexity.
uint8_t g_pwm_buffer[LED_DRIVER_COUNT][144];
bool g_pwm_buffer_update_required[LED_DRIVER_COUNT] = {false};
@@ -95,7 +95,7 @@ bool g_led_control_registers_update_required[LED_DRIVER_COUNT] = {false};
// 0x0E - R17,G15,G14,G13,G12,G11,G10,G09
// 0x10 - R16,R15,R14,R13,R12,R11,R10,R09
-void IS31FL3731_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
+void is31fl3731_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
g_twi_transfer_buffer[0] = reg;
g_twi_transfer_buffer[1] = data;
@@ -110,7 +110,7 @@ void IS31FL3731_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
#endif
}
-void IS31FL3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
// assumes bank is already selected
// transmit PWM registers in 9 transfers of 16 bytes
@@ -135,79 +135,83 @@ void IS31FL3731_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
}
}
-void IS31FL3731_init(uint8_t addr) {
+void is31fl3731_init(uint8_t addr) {
// In order to avoid the LEDs being driven with garbage data
// in the LED driver's PWM registers, first enable software shutdown,
// then set up the mode and other settings, clear the PWM registers,
// then disable software shutdown.
// select "function register" bank
- IS31FL3731_write_register(addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG);
+ is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG);
// enable software shutdown
- IS31FL3731_write_register(addr, ISSI_REG_SHUTDOWN, 0x00);
+ 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);
+ 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);
// picture mode
- IS31FL3731_write_register(addr, ISSI_REG_CONFIG, ISSI_REG_CONFIG_PICTUREMODE);
+ is31fl3731_write_register(addr, ISSI_REG_CONFIG, ISSI_REG_CONFIG_PICTUREMODE);
// display frame 0
- IS31FL3731_write_register(addr, ISSI_REG_PICTUREFRAME, 0x00);
+ is31fl3731_write_register(addr, ISSI_REG_PICTUREFRAME, 0x00);
// audio sync off
- IS31FL3731_write_register(addr, ISSI_REG_AUDIOSYNC, 0x00);
+ is31fl3731_write_register(addr, ISSI_REG_AUDIOSYNC, 0x00);
// select bank 0
- IS31FL3731_write_register(addr, ISSI_COMMANDREGISTER, 0);
+ is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, 0);
// turn off all LEDs in the LED control register
for (int i = 0x00; i <= 0x11; i++) {
- IS31FL3731_write_register(addr, i, 0x00);
+ is31fl3731_write_register(addr, i, 0x00);
}
// turn off all LEDs in the blink control register (not really needed)
for (int i = 0x12; i <= 0x23; i++) {
- IS31FL3731_write_register(addr, i, 0x00);
+ is31fl3731_write_register(addr, i, 0x00);
}
// set PWM on all LEDs to 0
for (int i = 0x24; i <= 0xB3; i++) {
- IS31FL3731_write_register(addr, i, 0x00);
+ is31fl3731_write_register(addr, i, 0x00);
}
// select "function register" bank
- IS31FL3731_write_register(addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG);
+ is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, ISSI_BANK_FUNCTIONREG);
// disable software shutdown
- IS31FL3731_write_register(addr, ISSI_REG_SHUTDOWN, 0x01);
+ is31fl3731_write_register(addr, ISSI_REG_SHUTDOWN, 0x01);
// select bank 0 and leave it selected.
// most usage after initialization is just writing PWM buffers in bank 0
// as there's not much point in double-buffering
- IS31FL3731_write_register(addr, ISSI_COMMANDREGISTER, 0);
+ is31fl3731_write_register(addr, ISSI_COMMANDREGISTER, 0);
}
-void IS31FL3731_set_value(int index, uint8_t value) {
+void is31fl3731_set_value(int index, uint8_t value) {
is31_led led;
if (index >= 0 && index < LED_MATRIX_LED_COUNT) {
memcpy_P(&led, (&g_is31_leds[index]), sizeof(led));
// Subtract 0x24 to get the second index of g_pwm_buffer
+
+ if (g_pwm_buffer[led.driver][led.v - 0x24] == value) {
+ return;
+ }
g_pwm_buffer[led.driver][led.v - 0x24] = value;
g_pwm_buffer_update_required[led.driver] = true;
}
}
-void IS31FL3731_set_value_all(uint8_t value) {
+void is31fl3731_set_value_all(uint8_t value) {
for (int i = 0; i < LED_MATRIX_LED_COUNT; i++) {
- IS31FL3731_set_value(i, value);
+ is31fl3731_set_value(i, value);
}
}
-void IS31FL3731_set_led_control_register(uint8_t index, bool value) {
+void is31fl3731_set_led_control_register(uint8_t index, bool value) {
is31_led led;
memcpy_P(&led, (&g_is31_leds[index]), sizeof(led));
@@ -223,17 +227,17 @@ void IS31FL3731_set_led_control_register(uint8_t index, bool value) {
g_led_control_registers_update_required[led.driver] = true;
}
-void IS31FL3731_update_pwm_buffers(uint8_t addr, uint8_t index) {
+void is31fl3731_update_pwm_buffers(uint8_t addr, uint8_t index) {
if (g_pwm_buffer_update_required[index]) {
- IS31FL3731_write_pwm_buffer(addr, g_pwm_buffer[index]);
+ is31fl3731_write_pwm_buffer(addr, g_pwm_buffer[index]);
g_pwm_buffer_update_required[index] = false;
}
}
-void IS31FL3731_update_led_control_registers(uint8_t addr, uint8_t index) {
+void is31fl3731_update_led_control_registers(uint8_t addr, uint8_t index) {
if (g_led_control_registers_update_required[index]) {
for (int i = 0; i < 18; i++) {
- IS31FL3731_write_register(addr, i, g_led_control_registers[index][i]);
+ is31fl3731_write_register(addr, i, g_led_control_registers[index][i]);
}
g_led_control_registers_update_required[index] = false;
}