led_matrix works now

common_features.mk

@@ -212,6 +212,9 @@ ifeq ($(strip $(BACKLIGHT_ENABLE)), yes)
     ifeq ($(strip $(BACKLIGHT_CUSTOM_DRIVER)), yes)
         OPT_DEFS += -DBACKLIGHT_CUSTOM_DRIVER
     endif
+    ifeq ($(filter $(LED_MATRIX_ENABLE),$(VALID_MATRIX_TYPES)),)
+        OPT_DEFS += -DBACKLIGHT_CUSTOM_DRIVER
+    endif
 endif
 
 ifeq ($(strip $(CIE1931_CURVE)), yes)

drivers/arm/i2c_master.c

@@ -46,13 +46,13 @@ __attribute__ ((weak))
 void i2c_init(void)
 {
   // Try releasing special pins for a short time
-  palSetPadMode(GPIOB, 6, PAL_MODE_INPUT);
-  palSetPadMode(GPIOB, 7, PAL_MODE_INPUT);
+  palSetPadMode(I2C1_BANK, I2C1_SCL, PAL_MODE_INPUT);
+  palSetPadMode(I2C1_BANK, I2C1_SDA, PAL_MODE_INPUT);
 
   chThdSleepMilliseconds(10);
 
-  palSetPadMode(GPIOB, 6, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN);
-  palSetPadMode(GPIOB, 7, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN);
+  palSetPadMode(I2C1_BANK, I2C1_SCL, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN);
+  palSetPadMode(I2C1_BANK, I2C1_SDA, PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN);
 
   //i2cInit(); //This is invoked by halInit() so no need to redo it.
 }
@@ -67,6 +67,7 @@ uint8_t i2c_start(uint8_t address)
 
 uint8_t i2c_transmit(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout)
 {
+  // FIXME: Next steps: Add a print here, copy this file to your rgb_matrix firmware. Compare both.
   i2c_address = address;
   i2cStart(&I2C_DRIVER, &i2cconfig);
   return i2cMasterTransmitTimeout(&I2C_DRIVER, (i2c_address >> 1), data, length, 0, 0, MS2ST(timeout));

drivers/arm/i2c_master.h

@@ -26,6 +26,16 @@
 #include "ch.h"
 #include <hal.h>
 
+#ifndef I2C1_BANK
+    #define I2C1_BANK GPIOB
+#endif
+#ifndef I2C1_SCL
+    #define I2C1_SCL 6
+#endif
+#ifndef I2C1_SDA
+    #define I2C1_SDA 7
+#endif
+
 #ifndef I2C_DRIVER
   #define I2C_DRIVER I2CD1
 #endif

drivers/issi/is31fl3731-simple.c

@@ -158,12 +158,7 @@ void IS31FL3731_init(uint8_t addr) {
     // enable software shutdown
     IS31FL3731_write_register(addr, ISSI_REG_SHUTDOWN, 0x00);
     // this delay was copied from other drivers, might not be needed
-    // FIXME: Don't we have a wrapper for this already?
-    #ifdef __AVR__
-    _delay_ms(10);
-    #else
     wait_ms(10);
-    #endif
 
     // picture mode
     IS31FL3731_write_register(addr, ISSI_REG_CONFIG, ISSI_REG_CONFIG_PICTUREMODE);

quantum/led_matrix.c

@@ -55,6 +55,9 @@ led_config_t led_matrix_config;
 
 bool g_suspend_state = false;
 
+// Last uniform brightness level.
+uint8_t g_uniform_brightness = 0;
+
 // Global tick at 20 Hz
 uint32_t g_tick = 0;
 
@@ -118,6 +121,7 @@ void led_matrix_set_index_value_all(uint8_t value) {
 }
 
 bool process_led_matrix(uint16_t keycode, keyrecord_t *record) {
+/* FIXME: Why you comment out skully?
     if (record->event.pressed) {
         uint8_t led[8], led_count;
         map_row_column_to_led(record->event.key.row, record->event.key.col, led, &led_count);
@@ -141,6 +145,7 @@ bool process_led_matrix(uint16_t keycode, keyrecord_t *record) {
         g_any_key_hit = 255;
         #endif
     }
+*/
     return true;
 }
 
@@ -155,21 +160,19 @@ void led_matrix_all_off(void) {
 
 // Uniform brightness
 void led_matrix_uniform_brightness(void) {
-    led_matrix_set_index_value_all(led_matrix_config.val);
+    uint8_t current_brightness = (LED_MATRIX_MAXIMUM_BRIGHTNESS / BACKLIGHT_LEVELS) * led_matrix_config.val;
+    if (current_brightness != g_uniform_brightness) {
+        g_uniform_brightness = current_brightness;
+        led_matrix_set_index_value_all(current_brightness);
+    }
 }
 
 void led_matrix_custom(void) {}
 
 void led_matrix_task(void) {
-  #ifdef TRACK_PREVIOUS_EFFECT
-      static uint8_t toggle_enable_last = 255;
-  #endif
     if (!led_matrix_config.enable) {
         led_matrix_all_off();
         led_matrix_indicators();
-     #ifdef TRACK_PREVIOUS_EFFECT
-         toggle_enable_last = led_matrix_config.enable;
-     #endif
         return;
     }
 
@@ -187,6 +190,7 @@ void led_matrix_task(void) {
         g_any_key_hit++;
     }
 
+/* FIXME: WHY YOU COMMENT OUT?!
     for (int led = 0; led < LED_DRIVER_LED_COUNT; led++) {
         if (g_key_hit[led] < 255) {
             if (g_key_hit[led] == 254)
@@ -200,24 +204,13 @@ void led_matrix_task(void) {
         led_matrix_uniform_brightness();
         return;
     }
-
+*/
     // Ideally we would also stop sending zeros to the LED driver PWM buffers
     // while suspended and just do a software shutdown. This is a cheap hack for now.
     bool suspend_backlight = ((g_suspend_state && LED_DISABLE_WHEN_USB_SUSPENDED) ||
             (LED_DISABLE_AFTER_TIMEOUT > 0 && g_any_key_hit > LED_DISABLE_AFTER_TIMEOUT * 60 * 20));
     uint8_t effect = suspend_backlight ? 0 : led_matrix_config.mode;
 
-    #ifdef TRACK_PREVIOUS_EFFECT
-        // Keep track of the effect used last time,
-        // detect change in effect, so each effect can
-        // have an optional initialization.
-
-        static uint8_t effect_last = 255;
-        bool initialize = (effect != effect_last) || (led_matrix_config.enable != toggle_enable_last);
-        effect_last = effect;
-        toggle_enable_last = led_matrix_config.enable;
-    #endif
-
     // this gets ticked at 20 Hz.
     // each effect can opt to do calculations
     // and/or request PWM buffer updates.
@@ -234,6 +227,8 @@ void led_matrix_task(void) {
         led_matrix_indicators();
     }
 
+    // Tell the LED driver to update its state
+    led_matrix_driver.flush();
 }
 
 void led_matrix_indicators(void) {
@@ -404,3 +399,7 @@ void led_matrix_set_value(uint8_t val) {
     led_matrix_set_value_noeeprom(val);
     eeconfig_update_led_matrix(led_matrix_config.raw);
 }
+
+void backlight_set(uint8_t val) {
+    led_matrix_set_value(val);
+}

quantum/led_matrix.h

@@ -112,9 +112,6 @@ uint8_t led_matrix_get_mode(void);
 void led_matrix_set_value(uint8_t mode);
 void led_matrix_set_value_noeeprom(uint8_t mode);
 
-// Hook into the existing backlight API
-#define backlight_set(val) led_matrix_set_value(val)
-
 typedef struct {
     /* Perform any initialisation required for the other driver functions to work. */
     void (*init)(void);

quantum/led_matrix_drivers.c

@@ -64,7 +64,8 @@ static void init(void) {
             IS31FL3733_init(LED_DRIVER_ADDR_4);
         #endif
     #endif
-    for (int index = 0; index < LED_DRIVER_COUNT; index++) {
+
+    for (int index = 0; index < LED_DRIVER_LED_COUNT; index++) {
         #ifdef IS31FL3731
             IS31FL3731_set_led_control_register(index, true);
         #else