+ msg_type = msg & 0xFF; //first byte is action information
+ msg_args[0] = (msg >> 8) & 0xFF;
+ msg_args[1] = (msg >> 16) & 0XFF;
+ msg_args[2] = (msg >> 24) & 0xFF;
+
+
+ switch (msg_type){
+ case SET_FULL_ROW:
+ //write full byte to pin address, msg_args[1] = pin #, msg_args[0] = 8 bits to write
+ //writes only to currently displayed page
+ write_led_byte(page_status, msg_args[1], msg_args[0]);
+ break;
+
+ case OFF_LED:
+ //on/off/toggle single led, msg_args[0] = row/col of led, msg_args[1] = page
+ set_led_bit(msg_args[1], control_register_word, msg_args[0], 0);
+ break;
+ case ON_LED:
+ set_led_bit(msg_args[1], control_register_word, msg_args[0], 1);
+ break;
+ case TOGGLE_LED:
+ set_led_bit(msg_args[1], control_register_word, msg_args[0], 2);
+ break;
+
+ case BLINK_OFF_LED:
+ //on/off/toggle single led, msg_args[0] = row/col of led
+ set_led_bit(msg_args[1], control_register_word, msg_args[0], 4);
+ break;
+ case BLINK_ON_LED:
+ set_led_bit(msg_args[1], control_register_word, msg_args[0], 5);
+ break;
+ case BLINK_TOGGLE_LED:
+ set_led_bit(msg_args[1], control_register_word, msg_args[0], 6);
+ break;
+
+ case TOGGLE_ALL:
+ //turn on/off all leds, msg_args = unused
+ is31_write_register(IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_ON);
+ chThdSleepMilliseconds(5);
+ is31_read_register(0, 0x00, &temp);
+ is31_write_register(IS31_FUNCTIONREG, IS31_REG_SHUTDOWN, IS31_REG_SHUTDOWN_OFF);
+
+ led_control_reg[0] = 0;
+
+ //toggle led mask based on current state (temp)
+ if (temp==0 || page_status > 0) {
+ __builtin_memcpy(led_control_reg+1, all_on_leds_mask, 0x12);
+ } else {
+ __builtin_memset(led_control_reg+1, 0, 0x12);
+ }
+ is31_write_data(0, led_control_reg, 0x13);
+
+ if (page_status > 0) {
+ is31_write_register(IS31_FUNCTIONREG, IS31_REG_PICTDISP, 0);
+
+ page_status=0;
+
+ //maintain lock leds, reset to off and force recheck to blink of all leds toggled on
+ numlock_status = 0;
+ capslock_status = 0;
+ led_set(host_keyboard_leds());
+ }
+ break;
+
+ case TOGGLE_BACKLIGHT:
+ //msg_args[0] = on/off
+
+ //populate 9 byte rows to be written to each pin, first byte is register (pin) address
+ if (msg_args[0] == 1) {
+ __builtin_memset(pwm_register_array+1, pwm_levels[pwm_step_status], 8);
+ } else {
+ __builtin_memset(pwm_register_array+1, 0, 8);
+ }
+
+ for(i=0; i<8; i++) {
+ //first byte is register address, every 0x10 9 bytes is A-matrix pwm pins
+ pwm_register_array[0] = 0x24 + (i * 0x10);
+ is31_write_data(0,pwm_register_array,9);
+ }
+ break;
+
+ case DISPLAY_PAGE:
+ //msg_args[0] = page to toggle on
+ if (page_status != msg_args[0]) {
+ is31_write_register(IS31_FUNCTIONREG, IS31_REG_PICTDISP, msg_args[0]);
+ page_status = msg_args[0];
+
+ //maintain lock leds, reset to off and force recheck for new page
+ numlock_status = 0;
+ capslock_status = 0;
+ led_set(host_keyboard_leds());
+ }
+ break;
+
+ case RESET_PAGE:
+ //led_args[0] = page to reset
+ led_control_reg[0] = 0;
+ __builtin_memset(led_control_reg+1, 0, 0x12);
+ is31_write_data(msg_args[0], led_control_reg, 0x13);
+
+ //repeat for blink register
+ led_control_reg[0] = 0x12;
+ is31_write_data(msg_args[0], led_control_reg, 0x13);
+ break;
+
+ case TOGGLE_NUM_LOCK:
+ //msg_args[0] = 0 or 1, off/on
+ if (numlock_status != msg_args[0]) {
+ set_lock_leds(NUM_LOCK_LED_ADDRESS, msg_args[0], page_status);
+ numlock_status = msg_args[0];
+ }
+ break;
+ case TOGGLE_CAPS_LOCK:
+ //msg_args[0] = 0 or 1, off/on
+ if (capslock_status != msg_args[0]) {
+ set_lock_leds(CAPS_LOCK_LED_ADDRESS, msg_args[0], page_status);
+ capslock_status = msg_args[0];
+ }
+ break;
+
+ case STEP_BRIGHTNESS:
+ //led_args[0] = step up (1) or down (0)
+ switch (msg_args[0]) {
+ case 0:
+ if (pwm_step_status == 0) {
+ pwm_step_status = 4;
+ } else {
+ pwm_step_status--;
+ }
+ break;