From e0ea55beebe6e59a2c1e571205fff22a5df8f493 Mon Sep 17 00:00:00 2001
From: Kai Ryu <kai1103@gmail.com>
Date: Thu, 28 Aug 2014 09:59:53 +0900
Subject: [PATCH] Implement backlight scheme of TentaPad

---
 common/softpwm_led.c               |  10 +-
 keyboard/tentapad/backlight.c      | 153 +++++++++++++++++++++++++----
 keyboard/tentapad/keymap_default.c |  75 +++++++++++---
 3 files changed, 199 insertions(+), 39 deletions(-)

diff --git a/common/softpwm_led.c b/common/softpwm_led.c
index b8751fb5..1c072bb0 100644
--- a/common/softpwm_led.c
+++ b/common/softpwm_led.c
@@ -253,15 +253,13 @@ ISR(TIMER1_COMPA_vect)
 {
     static uint8_t pwm = 0;
     pwm++;
-    // LED on
-    if (pwm == 0) {
-        for (uint8_t i = 0; i < LED_COUNT; i++) {
+    for (uint8_t i = 0; i < LED_COUNT; i++) {
+        // LED on
+        if (pwm == 0) {
             softpwm_led_on(i);
             softpwm_led_ocr[i] = softpwm_led_ocr_buff[i];
         }
-    }
-    // LED off
-    for (uint8_t i = 0; i < LED_COUNT; i++) {
+        // LED off
         if (pwm == softpwm_led_ocr[i]) {
             softpwm_led_off(i);
         }
diff --git a/keyboard/tentapad/backlight.c b/keyboard/tentapad/backlight.c
index e5c3edef..395235a1 100644
--- a/keyboard/tentapad/backlight.c
+++ b/keyboard/tentapad/backlight.c
@@ -20,35 +20,87 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include <avr/pgmspace.h>
 #include "backlight.h"
 #include "softpwm_led.h"
+#include "action.h"
+#include "keymap_common.h"
 
 #ifdef BACKLIGHT_ENABLE
 
-static const uint8_t backlight_table[] PROGMEM = {
-    0, 16, 128, 255
+static uint8_t backlight_mode;
+static const uint8_t backlight_brightness = 0xFF;
+
+enum {
+    LED_KEY_1 = 0,
+    LED_KEY_2,
+    LED_KEY_SIDE,
+    LED_BOARD_SIDE
 };
 
 void backlight_set(uint8_t level)
 {
+    backlight_mode = level;
+    softpwm_led_set_all(0);
+    fading_led_set_duration(2);
+    fading_led_set_direction(FADING_LED_FADE_OUT);
+    breathing_led_set_duration(3);
     switch (level) {
-        case 1:
-        case 2:
-        case 3:
-            softpwm_led_enable();
+        case 0:
+            softpwm_led_disable();
+            fading_led_disable_all();
             breathing_led_disable_all();
-            softpwm_led_set_all(pgm_read_byte(&backlight_table[level]));
+            softpwm_led_on(LED_KEY_SIDE);
+            softpwm_led_on(LED_BOARD_SIDE);
+            break;
+        case 1:
+            softpwm_led_set(LED_BOARD_SIDE, backlight_brightness);
+            fading_led_disable_all();
+            fading_led_enable(LED_KEY_SIDE);
+            breathing_led_disable_all();
+            softpwm_led_enable();
+            break;
+        case 2:
+            softpwm_led_set(LED_KEY_SIDE, backlight_brightness);
+            fading_led_disable_all();
+            fading_led_enable(LED_BOARD_SIDE);
+            breathing_led_disable_all();
+            softpwm_led_enable();
+            break;
+        case 3:
+            fading_led_disable_all();
+            breathing_led_disable_all();
+            breathing_led_enable(LED_KEY_SIDE);
+            breathing_led_enable(LED_BOARD_SIDE);
+            softpwm_led_enable();
             break;
         case 4:
-        case 5:
-        case 6:
+            softpwm_led_set(LED_KEY_SIDE, backlight_brightness);
+            breathing_led_disable_all();
+            breathing_led_enable(LED_BOARD_SIDE);
+            fading_led_disable_all();
             softpwm_led_enable();
-            breathing_led_enable_all();
-            breathing_led_set_duration_all(6 - level);
             break;
-        case 0:
-        default:
+        case 5:
+            softpwm_led_set(LED_BOARD_SIDE, backlight_brightness);
+            breathing_led_disable_all();
+            breathing_led_enable(LED_KEY_SIDE);
+            fading_led_disable_all();
+            softpwm_led_enable();
+            break;
+        case 6:
+            fading_led_disable_all();
             breathing_led_disable_all();
             softpwm_led_disable();
             break;
+        case 7:
+            fading_led_disable_all();
+            breathing_led_disable_all();
+            softpwm_led_disable();
+            break;
+        case 8:
+            softpwm_led_set_all(16);
+            fading_led_disable_all();
+            breathing_led_disable_all();
+            softpwm_led_enable();
+            break;
     }
 }
 
@@ -67,9 +119,20 @@ void softpwm_led_init(void)
 void softpwm_led_on(uint8_t index)
 {
 #ifndef EXPERIMENTAL
-    PORTD |= (1<<PD0);
-    PORTB |= (1<<PB7);
-    PORTC |= (1<<PD5 | 1<<PD6);
+    switch (index) {
+        case LED_KEY_1:
+            PORTC |= (1<<PC5);
+            break;
+        case LED_KEY_2:
+            PORTC |= (1<<PC6);
+            break;
+        case LED_KEY_SIDE:
+            PORTB |= (1<<PB7);
+            break;
+        case LED_BOARD_SIDE:
+            PORTD |= (1<<PD0);
+            break;
+    }
 #else
     PORTB |= (1<<PB6);
 #endif
@@ -78,13 +141,65 @@ void softpwm_led_on(uint8_t index)
 void softpwm_led_off(uint8_t index)
 {
 #ifndef EXPERIMENTAL
-    PORTD &= ~(1<<PD0);
-    PORTB &= ~(1<<PB7);
-    PORTC &= ~(1<<PD5 | 1<<PD6);
+    switch (index) {
+        case LED_KEY_1:
+            PORTC &= ~(1<<PC5);
+            break;
+        case LED_KEY_2:
+            PORTC &= ~(1<<PC6);
+            break;
+        case LED_KEY_SIDE:
+            PORTB &= ~(1<<PB7);
+            break;
+        case LED_BOARD_SIDE:
+            PORTD &= ~(1<<PD0);
+            break;
+    }
 #else
     PORTB &= ~(1<<PB6);
 #endif
 }
 #endif
 
+extern uint8_t config_mode;
+
+void action_keyevent(keyevent_t event)
+{
+    if (config_mode) return;
+    if (event.key.col < 2) {
+        if (event.pressed) {
+            switch (backlight_mode) {
+                case 0: case 6:
+                    softpwm_led_on(event.key.col);
+                    break;
+                case 1 ... 5:
+                    softpwm_led_set(event.key.col, backlight_brightness);
+                    break;
+            }
+        }
+        else {
+            switch (backlight_mode) {
+                case 0: case 6:
+                    softpwm_led_off(event.key.col);
+                    break;
+                case 1 ... 5:
+                    softpwm_led_set(event.key.col, 0);
+                    break;
+            }
+        }
+    }
+    switch (backlight_mode) {
+        case 1:
+            if (event.pressed) {
+                softpwm_led_increase(LED_KEY_SIDE, 32);
+            }
+            break;
+        case 2:
+            if (event.pressed) {
+                softpwm_led_increase(LED_BOARD_SIDE, 32);
+            }
+            break;
+    }
+}
+
 #endif
diff --git a/keyboard/tentapad/keymap_default.c b/keyboard/tentapad/keymap_default.c
index b0862c4f..2798ca40 100644
--- a/keyboard/tentapad/keymap_default.c
+++ b/keyboard/tentapad/keymap_default.c
@@ -68,42 +68,89 @@ uint16_t fn_actions_count(void) {
 }
 #endif
 
+uint8_t config_mode = 0;
+static uint8_t layer = 0;
+static uint8_t backlight = 0;
+static uint8_t layer_modified = 0;
+static uint8_t backlight_modified = 0;
+extern backlight_config_t backlight_config;
+
+void enter_config_mode(void);
+void exit_config_mode(void);
+void switch_layout(void);
+void switch_backlight(void);
+
 void action_function(keyrecord_t *record, uint8_t id, uint8_t opt)
 {
-    static uint8_t config_mode = 0;
-    static uint8_t layer = 0;
-    static uint8_t backlight = 0;
     switch (id) {
         case CONFIG_MODE:
             if (record->event.pressed) {
                 if (config_mode) {
-                    config_mode = 0;
-                    layer_off(CONFIG_LAYER);
+                    exit_config_mode();
                 }
                 else {
-                    config_mode = 1;
-                    layer = 0;
-                    backlight = 0;
-                    layer_on(CONFIG_LAYER);
+                    enter_config_mode();
                 }
             }
             break;
         case SWITCH_LAYOUT:
             if (record->event.pressed) {
                 if (config_mode) {
-                    default_layer_set(1UL<<layer);
-                    eeconfig_write_default_layer(1UL<<layer);
-                    layer = (layer + 1) % (last_layer() + 1);
+                    switch_layout();
                 }
             }
             break;
         case SWITCH_BACKLIGHT:
             if (record->event.pressed) {
                 if (config_mode) {
-                    backlight_level(backlight);
-                    backlight = (backlight + 1) % (BACKLIGHT_LEVELS + 1);
+                    switch_backlight();
                 }
             }
             break;
     }
 }
+
+void enter_config_mode(void)
+{
+    config_mode = 1;
+    layer_modified = 0;
+    backlight_modified = 0;
+    backlight = backlight_config.level;
+    backlight_level(8);
+    layer_on(CONFIG_LAYER);
+}
+
+void exit_config_mode(void)
+{
+    config_mode = 0;
+    backlight_level(backlight);
+    layer_off(CONFIG_LAYER);
+    if (layer_modified) {
+        default_layer_set(1UL<<layer);
+        eeconfig_write_default_layer(1UL<<layer);
+    }
+}
+
+void switch_layout(void)
+{
+    if (!layer_modified) {
+        layer = 0;
+        layer_modified = 1;
+    }
+    else {
+        layer = (layer + 1) % (last_layer() + 1);
+    }
+    softpwm_led_set(0, 32 * (layer + 1));
+}
+
+void switch_backlight(void)
+{
+    if (!backlight_modified) {
+        backlight = 0;
+        backlight_modified = 1;
+    }
+    else {
+        backlight = (backlight + 1) % (BACKLIGHT_LEVELS);
+    }
+    softpwm_led_set(1, 32 * (backlight + 1));
+}