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path: root/drivers/led/issi/is31fl3737.c
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Diffstat (limited to 'drivers/led/issi/is31fl3737.c')
-rw-r--r--drivers/led/issi/is31fl3737.c59
1 files changed, 31 insertions, 28 deletions
diff --git a/drivers/led/issi/is31fl3737.c b/drivers/led/issi/is31fl3737.c
index b6ed6b2629..947c0a1d1a 100644
--- a/drivers/led/issi/is31fl3737.c
+++ b/drivers/led/issi/is31fl3737.c
@@ -80,7 +80,7 @@ uint8_t g_twi_transfer_buffer[20];
// 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 IS31FL3737_write_pwm_buffer() but it's
+// buffers and the transfers in is31fl3737_write_pwm_buffer() but it's
// probably not worth the extra complexity.
uint8_t g_pwm_buffer[DRIVER_COUNT][192];
@@ -89,7 +89,7 @@ bool g_pwm_buffer_update_required[DRIVER_COUNT] = {false};
uint8_t g_led_control_registers[DRIVER_COUNT][24] = {0};
bool g_led_control_registers_update_required[DRIVER_COUNT] = {false};
-void IS31FL3737_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
+void is31fl3737_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
g_twi_transfer_buffer[0] = reg;
g_twi_transfer_buffer[1] = data;
@@ -102,7 +102,7 @@ void IS31FL3737_write_register(uint8_t addr, uint8_t reg, uint8_t data) {
#endif
}
-void IS31FL3737_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
+void is31fl3737_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
// assumes PG1 is already selected
// transmit PWM registers in 12 transfers of 16 bytes
@@ -126,56 +126,59 @@ void IS31FL3737_write_pwm_buffer(uint8_t addr, uint8_t *pwm_buffer) {
}
}
-void IS31FL3737_init(uint8_t addr) {
+void is31fl3737_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.
// Unlock the command register.
- IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+ is31fl3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
// Select PG0
- IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL);
+ is31fl3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL);
// Turn off all LEDs.
for (int i = 0x00; i <= 0x17; i++) {
- IS31FL3737_write_register(addr, i, 0x00);
+ is31fl3737_write_register(addr, i, 0x00);
}
// Unlock the command register.
- IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+ is31fl3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
// Select PG1
- IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM);
+ is31fl3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM);
// Set PWM on all LEDs to 0
// No need to setup Breath registers to PWM as that is the default.
for (int i = 0x00; i <= 0xBF; i++) {
- IS31FL3737_write_register(addr, i, 0x00);
+ is31fl3737_write_register(addr, i, 0x00);
}
// Unlock the command register.
- IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+ is31fl3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
// Select PG3
- IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_FUNCTION);
+ is31fl3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_FUNCTION);
// Set de-ghost pull-up resistors (SWx)
- IS31FL3737_write_register(addr, ISSI_REG_SWPULLUP, ISSI_SWPULLUP);
+ is31fl3737_write_register(addr, ISSI_REG_SWPULLUP, ISSI_SWPULLUP);
// Set de-ghost pull-down resistors (CSx)
- IS31FL3737_write_register(addr, ISSI_REG_CSPULLUP, ISSI_CSPULLUP);
+ is31fl3737_write_register(addr, ISSI_REG_CSPULLUP, ISSI_CSPULLUP);
// Set global current to maximum.
- IS31FL3737_write_register(addr, ISSI_REG_GLOBALCURRENT, ISSI_GLOBALCURRENT);
+ is31fl3737_write_register(addr, ISSI_REG_GLOBALCURRENT, ISSI_GLOBALCURRENT);
// Disable software shutdown.
- IS31FL3737_write_register(addr, ISSI_REG_CONFIGURATION, ((ISSI_PWM_FREQUENCY & 0b111) << 3) | 0x01);
+ is31fl3737_write_register(addr, ISSI_REG_CONFIGURATION, ((ISSI_PWM_FREQUENCY & 0b111) << 3) | 0x01);
// Wait 10ms to ensure the device has woken up.
wait_ms(10);
}
-void IS31FL3737_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
+void is31fl3737_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
is31_led led;
if (index >= 0 && index < RGB_MATRIX_LED_COUNT) {
memcpy_P(&led, (&g_is31_leds[index]), sizeof(led));
+ if (g_pwm_buffer[led.driver][led.r] == red && g_pwm_buffer[led.driver][led.g] == green && g_pwm_buffer[led.driver][led.b] == blue) {
+ return;
+ }
g_pwm_buffer[led.driver][led.r] = red;
g_pwm_buffer[led.driver][led.g] = green;
g_pwm_buffer[led.driver][led.b] = blue;
@@ -183,13 +186,13 @@ void IS31FL3737_set_color(int index, uint8_t red, uint8_t green, uint8_t blue) {
}
}
-void IS31FL3737_set_color_all(uint8_t red, uint8_t green, uint8_t blue) {
+void is31fl3737_set_color_all(uint8_t red, uint8_t green, uint8_t blue) {
for (int i = 0; i < RGB_MATRIX_LED_COUNT; i++) {
- IS31FL3737_set_color(i, red, green, blue);
+ is31fl3737_set_color(i, red, green, blue);
}
}
-void IS31FL3737_set_led_control_register(uint8_t index, bool red, bool green, bool blue) {
+void is31fl3737_set_led_control_register(uint8_t index, bool red, bool green, bool blue) {
is31_led led;
memcpy_P(&led, (&g_is31_leds[index]), sizeof(led));
@@ -219,24 +222,24 @@ void IS31FL3737_set_led_control_register(uint8_t index, bool red, bool green, bo
g_led_control_registers_update_required[led.driver] = true;
}
-void IS31FL3737_update_pwm_buffers(uint8_t addr, uint8_t index) {
+void is31fl3737_update_pwm_buffers(uint8_t addr, uint8_t index) {
if (g_pwm_buffer_update_required[index]) {
// Firstly we need to unlock the command register and select PG1
- IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
- IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM);
+ is31fl3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+ is31fl3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_PWM);
- IS31FL3737_write_pwm_buffer(addr, g_pwm_buffer[index]);
+ is31fl3737_write_pwm_buffer(addr, g_pwm_buffer[index]);
}
g_pwm_buffer_update_required[index] = false;
}
-void IS31FL3737_update_led_control_registers(uint8_t addr, uint8_t index) {
+void is31fl3737_update_led_control_registers(uint8_t addr, uint8_t index) {
if (g_led_control_registers_update_required[index]) {
// Firstly we need to unlock the command register and select PG0
- IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
- IS31FL3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL);
+ is31fl3737_write_register(addr, ISSI_COMMANDREGISTER_WRITELOCK, 0xC5);
+ is31fl3737_write_register(addr, ISSI_COMMANDREGISTER, ISSI_PAGE_LEDCONTROL);
for (int i = 0; i < 24; i++) {
- IS31FL3737_write_register(addr, i, g_led_control_registers[index][i]);
+ is31fl3737_write_register(addr, i, g_led_control_registers[index][i]);
}
}
g_led_control_registers_update_required[index] = false;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-23 03:59:17 +0000