qmk

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rgb_backlight.c (76775B)


      1 /* Copyright 2017 Jason Williams (Wilba)
      2  *
      3  * This program is free software: you can redistribute it and/or modify
      4  * it under the terms of the GNU General Public License as published by
      5  * the Free Software Foundation, either version 2 of the License, or
      6  * (at your option) any later version.
      7  *
      8  * This program is distributed in the hope that it will be useful,
      9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
     10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     11  * GNU General Public License for more details.
     12  *
     13  * You should have received a copy of the GNU General Public License
     14  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
     15  */
     16 #if RGB_BACKLIGHT_ENABLED
     17 
     18 #if defined(RGB_BACKLIGHT_ZEAL60) || defined(RGB_BACKLIGHT_ZEAL65) || defined(RGB_BACKLIGHT_M60_A) || defined(RGB_BACKLIGHT_M6_B) || defined(RGB_BACKLIGHT_KOYU) || defined(RGB_BACKLIGHT_HS60) || defined(RGB_BACKLIGHT_NK65)
     19 #else
     20 #error None of the following was defined: RGB_BACKLIGHT_ZEAL60, RGB_BACKLIGHT_ZEAL65, RGB_BACKLIGHT_M60_A, RGB_BACKLIGHT_M6_B, RGB_BACKLIGHT_KOYU, RGB_BACKLIGHT_HS60, RGB_BACKLIGHT_NK65
     21 #endif
     22 
     23 #ifndef MAX
     24     #define MAX(X, Y) ((X) > (Y) ? (X) : (Y))
     25 #endif
     26 
     27 #ifndef MIN
     28     #define MIN(a,b) ((a) < (b)? (a): (b))
     29 #endif
     30 
     31 #include "quantum.h"
     32 #include "rgb_backlight.h"
     33 #include "rgb_backlight_api.h"
     34 #include "rgb_backlight_keycodes.h"
     35 
     36 #if !defined(RGB_BACKLIGHT_HS60) && !defined(RGB_BACKLIGHT_NK65)
     37 #include <avr/io.h>
     38 #include <util/delay.h>
     39 #include <avr/interrupt.h>
     40 #include "drivers/avr/i2c_master.h"
     41 #else
     42 #include "ch.h"
     43 #include "hal.h"
     44 #include "drivers/arm/i2c_master.h"
     45 #include "tmk_core/common/eeprom.h"
     46 #endif
     47 #include "progmem.h"
     48 #include "quantum/color.h"
     49 
     50 #if defined(RGB_BACKLIGHT_M6_B)
     51 #include "drivers/issi/is31fl3218.h"
     52 #define BACKLIGHT_LED_COUNT 6
     53 #elif defined(RGB_BACKLIGHT_HS60)
     54 #include "drivers/issi/is31fl3733.h"
     55 #define BACKLIGHT_LED_COUNT 64
     56 #elif defined(RGB_BACKLIGHT_NK65)
     57 #include "drivers/issi/is31fl3733.h"
     58 #define BACKLIGHT_LED_COUNT 69
     59 #else
     60 #include "drivers/issi/is31fl3731.h"
     61 #define BACKLIGHT_LED_COUNT 72
     62 #endif
     63 
     64 #define BACKLIGHT_EFFECT_MAX 10
     65 
     66 backlight_config g_config = {
     67     .use_split_backspace = RGB_BACKLIGHT_USE_SPLIT_BACKSPACE,
     68     .use_split_left_shift = RGB_BACKLIGHT_USE_SPLIT_LEFT_SHIFT,
     69     .use_split_right_shift = RGB_BACKLIGHT_USE_SPLIT_RIGHT_SHIFT,
     70     .use_7u_spacebar = RGB_BACKLIGHT_USE_7U_SPACEBAR,
     71     .use_iso_enter = RGB_BACKLIGHT_USE_ISO_ENTER,
     72     .disable_hhkb_blocker_leds = RGB_BACKLIGHT_DISABLE_HHKB_BLOCKER_LEDS,
     73     .disable_when_usb_suspended = RGB_BACKLIGHT_DISABLE_WHEN_USB_SUSPENDED,
     74     .disable_after_timeout = RGB_BACKLIGHT_DISABLE_AFTER_TIMEOUT,
     75     .brightness = RGB_BACKLIGHT_BRIGHTNESS,
     76     .effect = RGB_BACKLIGHT_EFFECT,
     77     .effect_speed = RGB_BACKLIGHT_EFFECT_SPEED,
     78     .color_1 = RGB_BACKLIGHT_COLOR_1,
     79     .color_2 = RGB_BACKLIGHT_COLOR_2,
     80     .caps_lock_indicator = RGB_BACKLIGHT_CAPS_LOCK_INDICATOR,
     81     .layer_1_indicator = RGB_BACKLIGHT_LAYER_1_INDICATOR,
     82     .layer_2_indicator = RGB_BACKLIGHT_LAYER_2_INDICATOR,
     83     .layer_3_indicator = RGB_BACKLIGHT_LAYER_3_INDICATOR,
     84     .alphas_mods = {
     85         RGB_BACKLIGHT_ALPHAS_MODS_ROW_0,
     86         RGB_BACKLIGHT_ALPHAS_MODS_ROW_1,
     87         RGB_BACKLIGHT_ALPHAS_MODS_ROW_2,
     88         RGB_BACKLIGHT_ALPHAS_MODS_ROW_3,
     89         RGB_BACKLIGHT_ALPHAS_MODS_ROW_4 },
     90 #if defined(RGB_BACKLIGHT_M6_B)
     91     .custom_color = { { 0, 255 }, { 43, 255 }, { 85, 255 }, { 128, 255 }, { 171, 255 }, { 213, 255 } }
     92 #endif
     93 };
     94 
     95 bool g_suspend_state = false;
     96 uint8_t g_indicator_state = 0;
     97 
     98 // Global tick at 20 Hz
     99 uint32_t g_tick = 0;
    100 
    101 // Ticks since this key was last hit.
    102 uint8_t g_key_hit[BACKLIGHT_LED_COUNT];
    103 
    104 // Ticks since any key was last hit.
    105 uint32_t g_any_key_hit = 0;
    106 
    107 #if defined(RGB_BACKLIGHT_HS60)
    108 
    109 // This is a 7-bit address, that gets left-shifted and bit 0
    110 // set to 0 for write, 1 for read (as per I2C protocol)
    111 // ADDR_2 is not needed. it is here as a dummy
    112 #define ISSI_ADDR_1 0x50
    113 
    114 const is31_led g_is31_leds[DRIVER_LED_TOTAL] = {
    115 /* Refer to IS31 manual for these locations
    116  *   driver
    117  *   |  R location
    118  *   |  |      G location
    119  *   |  |      |      B location
    120  *   |  |      |      | */
    121     {0, B_1,   A_1,   C_1}, //LA1
    122     {0, E_1,   D_1,   F_1}, //LA2
    123     {0, H_1,   G_1,   I_1}, //LA3
    124     {0, K_1,   J_1,   L_1}, //LA4
    125     {0, B_2,   A_2,   C_2}, //LA5
    126     {0, E_2,   D_2,   F_2}, //LA6
    127     {0, H_2,   G_2,   I_2}, //LA7
    128     {0, K_2,   J_2,   L_2}, //LA8
    129     {0, B_3,   A_3,   C_3}, //LA9
    130     {0, E_3,   D_3,   F_3}, //LA10
    131     {0, H_3,   G_3,   I_3}, //LA11
    132     {0, K_3,   J_3,   L_3}, //LA12
    133     {0, B_4,   A_4,   C_4}, //LA13
    134     {0, E_4,   D_4,   F_4}, //LA14
    135     {0, H_4,   G_4,   I_4}, //LA15
    136     {0, K_4,   J_4,   L_4}, //LA16
    137     {0, B_5,   A_5,   C_5}, //LA17
    138     {0, E_5,   D_5,   F_5}, //LA18
    139     {0, H_5,   G_5,   I_5}, //LA19
    140     {0, K_5,   J_5,   L_5}, //LA20
    141     {0, B_6,   A_6,   C_6}, //LA21
    142     {0, E_6,   D_6,   F_6}, //LA22
    143     {0, H_6,   G_6,   I_6}, //LA23
    144     {0, K_6,   J_6,   L_6}, //LA24
    145     {0, B_7,   A_7,   C_7}, //LA25
    146     {0, E_7,   D_7,   F_7}, //LA26
    147     {0, H_7,   G_7,   I_7}, //LA27
    148     {0, K_7,   J_7,   L_7}, //LA28
    149     {0, B_8,   A_8,   C_8}, //LA29
    150     {0, E_8,   D_8,   F_8}, //LA30
    151     {0, H_8,   G_8,   I_8}, //LA31
    152     {0, K_8,   J_8,   L_8}, //LA32
    153     {0, B_9,   A_9,   C_9}, //LA33
    154     {0, E_9,   D_9,   F_9}, //LA34
    155     {0, H_9,   G_9,   I_9}, //LA35
    156     {0, K_9,   J_9,   L_9}, //LA36
    157     {0, B_10,  A_10,  C_10}, //LA37
    158     {0, E_10,  D_10,  F_10}, //LA38
    159     {0, H_10,  G_10,  I_10}, //LA39
    160     {0, K_10,  J_10,  L_10}, //LA40
    161     {0, B_11,  A_11,  C_11}, //LA41
    162     {0, E_11,  D_11,  F_11}, //LA42
    163     {0, H_11,  G_11,  I_11}, //LA43
    164     {0, K_11,  J_11,  L_11}, //LA44
    165     {0, B_12,  A_12,  C_12}, //LA45
    166     {0, E_12,  D_12,  F_12}, //LA46
    167     {0, H_12,  G_12,  I_12}, //LA47
    168     {0, K_12,  J_12,  L_12}, //LA48
    169     {0, B_13,  A_13,  C_13}, //LA49
    170     {0, E_13,  D_13,  F_13}, //LA50
    171     {0, H_13,  G_13,  I_13}, //LA51
    172     {0, K_13,  J_13,  L_13}, //LA52
    173     {0, B_14,  A_14,  C_14}, //LA53
    174     {0, E_14,  D_14,  F_14}, //LA54
    175     {0, H_14,  G_14,  I_14}, //LA55
    176     {0, K_14,  J_14,  L_14}, //LA56
    177     {0, B_15,  A_15,  C_15}, //LA57
    178     {0, E_15,  D_15,  F_15}, //LA58
    179     {0, H_15,  G_15,  I_15}, //LA59
    180     {0, K_15,  J_15,  L_15}, //LA60
    181     {0, B_16,  A_16,  C_16}, //LA61
    182     {0, E_16,  D_16,  F_16}, //LA62
    183     {0, H_16,  G_16,  I_16}, //LA63
    184     {0, K_16,  J_16,  L_16}, //LA64
    185 };
    186 
    187 #elif defined(RGB_BACKLIGHT_NK65)
    188 
    189 // This is a 7-bit address, that gets left-shifted and bit 0
    190 // set to 0 for write, 1 for read (as per I2C protocol)
    191 // ADDR_2 is not needed. it is here as a dummy
    192 #define ISSI_ADDR_1 0x50
    193 #define ISSI_ADDR_2 0x52
    194 
    195 const is31_led g_is31_leds[DRIVER_LED_TOTAL] = {
    196 /* Refer to IS31 manual for these locations
    197  *   driver
    198  *   |  R location
    199  *   |  |      G location
    200  *   |  |      |      B location
    201  *   |  |      |      | */
    202     {0, B_1,   A_1,   C_1}, //LA1
    203     {0, E_1,   D_1,   F_1}, //LA2
    204     {0, H_1,   G_1,   I_1}, //LA3
    205     {0, K_1,   J_1,   L_1}, //LA4
    206     {0, B_2,   A_2,   C_2}, //LA5
    207     {0, E_2,   D_2,   F_2}, //LA6
    208     {0, H_2,   G_2,   I_2}, //LA7
    209     {0, K_2,   J_2,   L_2}, //LA8
    210     {0, B_3,   A_3,   C_3}, //LA9
    211     {0, E_3,   D_3,   F_3}, //LA10
    212     {0, H_3,   G_3,   I_3}, //LA11
    213     {0, K_3,   J_3,   L_3}, //LA12
    214     {0, B_4,   A_4,   C_4}, //LA13
    215     {0, E_4,   D_4,   F_4}, //LA14
    216     {0, H_4,   G_4,   I_4}, //LA15
    217     {0, K_4,   J_4,   L_4}, //LA16
    218     {0, B_5,   A_5,   C_5}, //LA17
    219     {0, E_5,   D_5,   F_5}, //LA18
    220     {0, H_5,   G_5,   I_5}, //LA19
    221     {0, K_5,   J_5,   L_5}, //LA20
    222     {0, B_6,   A_6,   C_6}, //LA21
    223     {0, E_6,   D_6,   F_6}, //LA22
    224     {0, H_6,   G_6,   I_6}, //LA23
    225     {0, K_6,   J_6,   L_6}, //LA24
    226     {0, B_7,   A_7,   C_7}, //LA25
    227     {0, E_7,   D_7,   F_7}, //LA26
    228     {0, H_7,   G_7,   I_7}, //LA27
    229     {0, K_7,   J_7,   L_7}, //LA28
    230     {0, B_8,   A_8,   C_8}, //LA29
    231     {0, E_8,   D_8,   F_8}, //LA30
    232     {0, H_8,   G_8,   I_8}, //LA31
    233     {0, K_8,   J_8,   L_8}, //LA32
    234     {0, B_9,   A_9,   C_9}, //LA33
    235     {0, E_9,   D_9,   F_9}, //LA34
    236     {0, H_9,   G_9,   I_9}, //LA35
    237     {0, K_9,   J_9,   L_9}, //LA36
    238     {0, B_10,  A_10,  C_10}, //LA37
    239     {0, E_10,  D_10,  F_10}, //LA38
    240     {0, H_10,  G_10,  I_10}, //LA39
    241     {0, K_10,  J_10,  L_10}, //LA40
    242     {0, B_11,  A_11,  C_11}, //LA41
    243     {0, E_11,  D_11,  F_11}, //LA42
    244     {0, H_11,  G_11,  I_11}, //LA43
    245     {0, K_11,  J_11,  L_11}, //LA44
    246     {0, B_12,  A_12,  C_12}, //LA45
    247     {0, E_12,  D_12,  F_12}, //LA46
    248     {0, H_12,  G_12,  I_12}, //LA47
    249     {0, K_12,  J_12,  L_12}, //LA48
    250     {0, B_13,  A_13,  C_13}, //LA49
    251     {0, E_13,  D_13,  F_13}, //LA50
    252     {0, H_13,  G_13,  I_13}, //LA51
    253     {0, K_13,  J_13,  L_13}, //LA52
    254     {0, B_14,  A_14,  C_14}, //LA53
    255     {0, E_14,  D_14,  F_14}, //LA54
    256     {0, H_14,  G_14,  I_14}, //LA55
    257     {0, K_14,  J_14,  L_14}, //LA56
    258     {0, B_15,  A_15,  C_15}, //LA57
    259     {0, E_15,  D_15,  F_15}, //LA58
    260     {0, H_15,  G_15,  I_15}, //LA59
    261     {0, K_15,  J_15,  L_15}, //LA60
    262     {0, B_16,  A_16,  C_16}, //LA61
    263     {0, E_16,  D_16,  F_16}, //LA62
    264     {0, H_16,  G_16,  I_16}, //LA63
    265     {0, K_16,  J_16,  L_16}, //LA64
    266 
    267     {1, B_1,   A_1,   C_1}, //LB1
    268     {1, E_1,   D_1,   F_1}, //LB2
    269     {1, H_1,   G_1,   I_1}, //LB3
    270     {1, K_1,   J_1,   L_1}, //LB4
    271     {1, B_2,   A_2,   C_2}, //LB5
    272     {1, E_2,   D_2,   F_2}, //LB6
    273     {1, H_2,   G_2,   I_2}, //LB7
    274     {1, K_2,   J_2,   L_2}, //LB8
    275     {1, B_3,   A_3,   C_3}, //LB9
    276     {1, E_3,   D_3,   F_3}, //LB10
    277     {1, H_3,   G_3,   I_3}, //LB11
    278     {1, K_3,   J_3,   L_3}, //LB12
    279     {1, B_4,   A_4,   C_4}, //LB13
    280     {1, E_4,   D_4,   F_4}, //LB14
    281     {1, H_4,   G_4,   I_4}, //LB15
    282     {1, K_4,   J_4,   L_4}, //LB16
    283     {1, B_5,   A_5,   C_5}, //LB17
    284     {1, E_5,   D_5,   F_5}, //LB18
    285     {1, H_5,   G_5,   I_5}, //LB19
    286     {1, K_5,   J_5,   L_5}, //LB20
    287     {1, B_6,   A_6,   C_6}, //LB21
    288     {1, E_6,   D_6,   F_6}, //LB22
    289     {1, H_6,   G_6,   I_6}, //LB23
    290     {1, K_6,   J_6,   L_6}, //LB24
    291     {1, B_7,   A_7,   C_7}, //LB25
    292     {1, E_7,   D_7,   F_7}, //LB26
    293     {1, H_7,   G_7,   I_7}, //LB27
    294     {1, K_7,   J_7,   L_7}, //LB28
    295     {1, B_8,   A_8,   C_8}, //LB29
    296     {1, E_8,   D_8,   F_8}, //LB30
    297     {1, H_8,   G_8,   I_8}, //LB31
    298     {1, K_8,   J_8,   L_8}, //LB32
    299     {1, B_9,   A_9,   C_9}, //LB33
    300     {1, E_9,   D_9,   F_9}, //LB34
    301     {1, H_9,   G_9,   I_9}, //LB35
    302     {1, K_9,   J_9,   L_9}, //LB36
    303     {1, B_10,  A_10,  C_10}, //LB37
    304     {1, E_10,  D_10,  F_10}, //LB38
    305     {1, H_10,  G_10,  I_10}, //LB39
    306     {1, K_10,  J_10,  L_10}, //LB40
    307     {1, B_11,  A_11,  C_11}, //LB41
    308     {1, E_11,  D_11,  F_11}, //LB42
    309     {1, H_11,  G_11,  I_11}, //LB43
    310     {1, K_11,  J_11,  L_11}, //LB44
    311     {1, B_12,  A_12,  C_12}, //LB45
    312     {1, E_12,  D_12,  F_12}, //LB46
    313     {1, H_12,  G_12,  I_12}, //LB47
    314     {1, K_12,  J_12,  L_12}, //LB48
    315     {1, B_13,  A_13,  C_13}, //LB49
    316     {1, E_13,  D_13,  F_13}, //LB50
    317     {1, H_13,  G_13,  I_13}, //LB51
    318     {1, K_13,  J_13,  L_13}, //LB52
    319     {1, B_14,  A_14,  C_14}, //LB53
    320     {1, E_14,  D_14,  F_14}, //LB54
    321     {1, H_14,  G_14,  I_14}, //LB55
    322     {1, K_14,  J_14,  L_14}, //LB56
    323     {1, B_15,  A_15,  C_15}, //LB57
    324     {1, E_15,  D_15,  F_15}, //LB58
    325     {1, H_15,  G_15,  I_15}, //LB59
    326     {1, K_15,  J_15,  L_15}, //LB60
    327     {1, B_16,  A_16,  C_16}, //LB61
    328     {1, E_16,  D_16,  F_16}, //LB62
    329     {1, H_16,  G_16,  I_16}, //LB63
    330     {1, K_16,  J_16,  L_16}, //LB64
    331 };
    332 
    333 #elif !defined(RGB_BACKLIGHT_M6_B)
    334 // This is a 7-bit address, that gets left-shifted and bit 0
    335 // set to 0 for write, 1 for read (as per I2C protocol)
    336 #define ISSI_ADDR_1 0x74
    337 #define ISSI_ADDR_2 0x76
    338 
    339 const is31_led g_is31_leds[DRIVER_LED_TOTAL] = {
    340 /* Refer to IS31 manual for these locations
    341  *   driver
    342  *   |  R location
    343  *   |  |      G location
    344  *   |  |      |      B location
    345  *   |  |      |      | */
    346     {0, C2_1,  C3_1,  C4_1},  // LA0
    347     {0, C1_1,  C3_2, C4_2},   // LA1
    348     {0, C1_2,  C2_2, C4_3},   // LA2
    349     {0, C1_3,  C2_3, C3_3},   // LA3
    350     {0, C1_4,  C2_4, C3_4},   // LA4
    351     {0, C1_5,  C2_5, C3_5},   // LA5
    352     {0, C1_6,  C2_6, C3_6},   // LA6
    353     {0, C1_7,  C2_7, C3_7},   // LA7
    354     {0, C1_8,  C2_8, C3_8},   // LA8
    355     {0, C9_1,  C8_1, C7_1},   // LA9
    356     {0, C9_2,  C8_2, C7_2},   // LA10
    357     {0, C9_3,  C8_3, C7_3},   // LA11
    358     {0, C9_4,  C8_4, C7_4},   // LA12
    359     {0, C9_5,  C8_5, C7_5},   // LA13
    360     {0, C9_6,  C8_6, C7_6},   // LA14
    361     {0, C9_7,  C8_7, C6_6},   // LA15
    362     {0, C9_8,  C7_7, C6_7},   // LA16
    363     {0, C8_8,  C7_8, C6_8},   // LA17
    364 
    365     {0, C2_9,  C3_9,  C4_9},  // LB0
    366     {0, C1_9,  C3_10, C4_10}, // LB1
    367     {0, C1_10, C2_10, C4_11}, // LB2
    368     {0, C1_11, C2_11, C3_11}, // LB3
    369     {0, C1_12, C2_12, C3_12}, // LB4
    370     {0, C1_13, C2_13, C3_13}, // LB5
    371     {0, C1_14, C2_14, C3_14}, // LB6
    372     {0, C1_15, C2_15, C3_15}, // LB7
    373     {0, C1_16, C2_16, C3_16}, // LB8
    374     {0, C9_9,  C8_9,  C7_9},  // LB9
    375     {0, C9_10, C8_10, C7_10}, // LB10
    376     {0, C9_11, C8_11, C7_11}, // LB11
    377     {0, C9_12, C8_12, C7_12}, // LB12
    378     {0, C9_13, C8_13, C7_13}, // LB13
    379     {0, C9_14, C8_14, C7_14}, // LB14
    380     {0, C9_15, C8_15, C6_14}, // LB15
    381     {0, C9_16, C7_15, C6_15}, // LB16
    382     {0, C8_16, C7_16, C6_16}, // LB17
    383 
    384     {1, C2_1,  C3_1,  C4_1},  // LC0
    385     {1, C1_1,  C3_2, C4_2},   // LC1
    386     {1, C1_2,  C2_2, C4_3},   // LC2
    387     {1, C1_3,  C2_3, C3_3},   // LC3
    388     {1, C1_4,  C2_4, C3_4},   // LC4
    389     {1, C1_5,  C2_5, C3_5},   // LC5
    390     {1, C1_6,  C2_6, C3_6},   // LC6
    391     {1, C1_7,  C2_7, C3_7},   // LC7
    392     {1, C1_8,  C2_8, C3_8},   // LC8
    393     {1, C9_1,  C8_1,  C7_1},  // LC9
    394     {1, C9_2,  C8_2, C7_2},   // LC10
    395     {1, C9_3,  C8_3, C7_3},   // LC11
    396     {1, C9_4,  C8_4, C7_4},   // LC12
    397     {1, C9_5,  C8_5, C7_5},   // LC13
    398     {1, C9_6,  C8_6, C7_6},   // LC14
    399     {1, C9_7,  C8_7, C6_6},   // LC15
    400     {1, C9_8,  C7_7, C6_7},   // LC16
    401     {1, C8_8,  C7_8, C6_8},   // LC17
    402 
    403     {1, C2_9,  C3_9,  C4_9},  // LD0
    404     {1, C1_9,  C3_10, C4_10}, // LD1
    405     {1, C1_10, C2_10, C4_11}, // LD2
    406     {1, C1_11, C2_11, C3_11}, // LD3
    407     {1, C1_12, C2_12, C3_12}, // LD4
    408     {1, C1_13, C2_13, C3_13}, // LD5
    409     {1, C1_14, C2_14, C3_14}, // LD6
    410     {1, C1_15, C2_15, C3_15}, // LD7
    411     {1, C1_16, C2_16, C3_16}, // LD8
    412     {1, C9_9,  C8_9,  C7_9},  // LD9
    413     {1, C9_10, C8_10, C7_10}, // LD10
    414     {1, C9_11, C8_11, C7_11}, // LD11
    415     {1, C9_12, C8_12, C7_12}, // LD12
    416     {1, C9_13, C8_13, C7_13}, // LD13
    417     {1, C9_14, C8_14, C7_14}, // LD14
    418     {1, C9_15, C8_15, C6_14}, // LD15
    419     {1, C9_16, C7_15, C6_15}, // LD16
    420     {1, C8_16, C7_16, C6_16}, // LD17
    421 };
    422 #endif // !defined(RGB_BACKLIGHT_M6_B)
    423 
    424 
    425 typedef struct Point {
    426     uint8_t x;
    427     uint8_t y;
    428 } Point;
    429 
    430 
    431 // index in range 0..71 (LA0..LA17, LB0..LB17, LC0..LC17, LD0..LD17)
    432 // point values in range x=0..224 y=0..64
    433 // origin is center of top-left key (i.e Esc)
    434 #if defined(RGB_BACKLIGHT_ZEAL65)
    435 const Point g_map_led_to_point[BACKLIGHT_LED_COUNT] PROGMEM = {
    436     // LA0..LA17
    437     {120,16}, {104,16}, {88,16}, {72,16}, {56,16}, {40,16}, {24,16}, {4,16}, {4,32},
    438     {128,0}, {112,0}, {96,0}, {80,0}, {64,0}, {48,0}, {32,0}, {16,0}, {0,0},
    439     // LB0..LB17
    440     {144,0}, {160,0}, {176,0}, {192,0}, {216,0}, {224,0}, {240,0}, {240,16}, {240,32},
    441     {136,16}, {152,16}, {168,16}, {184,16}, {200,16}, {220,16}, {240,48}, {240,64}, {224,64},
    442     // LC0..LC17
    443     {96,64}, {100,48}, {84,48}, {68,48}, {52,48}, {36,48}, {255,255}, {48,60}, {28,64},
    444     {108,32}, {92,32}, {76,32}, {60,32}, {44,32}, {28,32}, {20,44}, {10,48}, {4,64},
    445     // LD0..LD17
    446     {124,32}, {140,32}, {156,32}, {172,32}, {188,32}, {214,32}, {180,48}, {202,48}, {224,48},
    447     {116,48}, {132,48}, {148,48}, {164,48}, {255,255}, {144,60}, {164,64}, {188,64}, {208,64}
    448 };
    449 const Point g_map_led_to_point_polar[BACKLIGHT_LED_COUNT] PROGMEM = {
    450     // LA0..LA17
    451     {64,128}, {75,132}, {84,145}, {91,164}, {97,187}, {102,213}, {105,242}, {109,255}, {128,243},
    452     {61,255}, {67,255}, {72,255}, {77,255}, {82,255}, {86,255}, {90,255}, {93,255}, {96,255},
    453     // LB0..LB17
    454     {56,255}, {51,255}, {46,255}, {42,255}, {37,255}, {35,255}, {32,255}, {19,255}, {0,255},
    455     {53,132}, {44,145}, {37,164}, {31,187}, {26,213}, {22,249}, {237,255}, {224,255}, {221,255},
    456     // LC0..LC17
    457     {184,255}, {179,135}, {170,149}, {163,169}, {157,193}, {153,220}, {255,255}, {167,255}, {165,255},
    458     {128,26}, {128,60}, {128,94}, {128,128}, {128,162}, {128,196}, {145,233}, {148,255}, {161,255},
    459     // LD0..LD17
    460     {0,9}, {0,43}, {0,77}, {0,111}, {0,145}, {0,201}, {224,181}, {230,217}, {235,255},
    461     {189,128}, {200,131}, {210,141}, {218,159}, {255,255}, {201,228}, {206,255}, {213,255}, {218,255}
    462 };
    463 #elif defined(RGB_BACKLIGHT_KOYU)
    464 const Point g_map_led_to_point[BACKLIGHT_LED_COUNT] PROGMEM = {
    465     // LA0..LA17
    466     {120,16}, {104,16}, {88,16}, {72,16}, {56,16}, {40,16}, {24,16}, {4,16}, {4,32},
    467     {128,0}, {112,0}, {96,0}, {80,0}, {64,0}, {48,0}, {32,0}, {16,0}, {0,0},
    468     // LB0..LB17
    469     {144,0}, {160,0}, {176,0}, {192,0}, {208,0}, {224,0}, {240,0}, {240,16}, {240,32},
    470     {136,16}, {152,16}, {168,16}, {184,16}, {200,16}, {220,16}, {240,48}, {240,64}, {224,64},
    471     // LC0..LC17
    472     {112,64}, {100,48}, {84,48}, {68,48}, {52,48}, {36,48}, {64,60}, {44,60}, {24,64},
    473     {108,32}, {92,32}, {76,32}, {60,32}, {44,32}, {28,32}, {255,255}, {10,48}, {4,64},
    474     // LD0..LD17
    475     {124,32}, {140,32}, {156,32}, {172,32}, {188,32}, {214,32}, {180,48}, {202,48}, {224,48},
    476     {116,48}, {132,48}, {148,48}, {164,48}, {255,255}, {160,60}, {180,64}, {208,64}, {255,255}
    477 };
    478 const Point g_map_led_to_point_polar[BACKLIGHT_LED_COUNT] PROGMEM = {
    479     // LA0..LA17
    480     {64,128}, {75,132}, {84,145}, {91,164}, {97,187}, {102,213}, {105,242}, {109,255}, {128,243},
    481     {61,255}, {67,255}, {72,255}, {77,255}, {82,255}, {86,255}, {90,255}, {93,255}, {96,255},
    482     // LB0..LB17
    483     {56,255}, {51,255}, {46,255}, {42,255}, {38,255}, {35,255}, {32,255}, {19,255}, {0,255},
    484     {53,132}, {44,145}, {37,164}, {31,187}, {26,213}, {22,249}, {237,255}, {224,255}, {221,255},
    485     // LC0..LC17
    486     {189,255}, {179,135}, {170,149}, {163,169}, {157,193}, {153,220}, {172,252}, {169,255}, {165,255},
    487     {128,26}, {128,60}, {128,94}, {128,128}, {128,162}, {128,196}, {255,255}, {148,255}, {161,255},
    488     // LD0..LD17
    489     {0,9}, {0,43}, {0,77}, {0,111}, {0,145}, {0,201}, {224,181}, {230,217}, {235,255},
    490     {189,128}, {200,131}, {210,141}, {218,159}, {255,255}, {207,238}, {211,255}, {218,255}, {255,255}
    491 };
    492 #elif defined(RGB_BACKLIGHT_ZEAL60) || defined(RGB_BACKLIGHT_M60_A)
    493 const Point g_map_led_to_point[BACKLIGHT_LED_COUNT] PROGMEM = {
    494     // LA0..LA17
    495     {120,16}, {104,16}, {88,16}, {72,16}, {56,16}, {40,16}, {24,16}, {4,16}, {4,32},
    496     {128,0}, {112,0}, {96,0}, {80,0}, {64,0}, {48,0}, {32,0}, {16,0}, {0,0},
    497     // LB0..LB17
    498     {144,0}, {160,0}, {176,0}, {192,0}, {216,0}, {224,0}, {255,255}, {255,255}, {255,255},
    499     {136,16}, {152,16}, {168,16}, {184,16}, {200,16}, {220,16}, {255,255}, {255,255}, {255,255},
    500     // LC0..LC17
    501     {102,64}, {100,48}, {84,48}, {68,48}, {52,48}, {36,48}, {60,64}, {43,64}, {23,64},
    502     {108,32}, {92,32}, {76,32}, {60,32}, {44,32}, {28,32}, {20,48}, {2,48}, {3,64},
    503     // LD0..LD17
    504     {124,32}, {140,32}, {156,32}, {172,32}, {188,32}, {214,32}, {180,48}, {210,48}, {224,48},
    505     {116,48}, {132,48}, {148,48}, {164,48}, {144,64}, {161,64}, {181,64}, {201,64}, {221,64}
    506 };
    507 const Point g_map_led_to_point_polar[BACKLIGHT_LED_COUNT] PROGMEM = {
    508     // LA0..LA17
    509     {58,129}, {70,129}, {80,139}, {89,157}, {96,181}, {101,208}, {105,238}, {109,255}, {128,247}, {58,255},
    510     {64,255}, {70,255}, {75,255}, {80,255}, {85,255}, {89,255}, {93,255}, {96,255},
    511     // LB0..LB17
    512     {53,255}, {48,255}, {43,255}, {39,255}, {34,255}, {32,255}, {255,255}, {255,255}, {255,255},
    513     {48,139}, {39,157}, {32,181}, {27,208}, {23,238}, {19,255}, {255,255}, {255,255}, {255,255},
    514     // LC0..LC17
    515     {188,255}, {183,131}, {173,143}, {165,163}, {159,188}, {154,216}, {172,252}, {170,255}, {165,255},
    516     {128,9}, {128,46}, {128,82}, {128,119}, {128,155}, {128,192}, {150,244}, {147,255}, {161,255},
    517     // LD0..LD17
    518     {0,27}, {0,64}, {0,101}, {0,137}, {0,174}, {255,233}, {228,201}, {235,255}, {237,255},
    519     {195,128}, {206,136}, {215,152}, {222,175}, {205,234}, {209,255}, {214,255}, {219,255}, {223,255}
    520 };
    521 #elif defined(RGB_BACKLIGHT_HS60) && defined(HS60_ANSI)
    522 const Point g_map_led_to_point[BACKLIGHT_LED_COUNT] PROGMEM = {
    523     // LA1..LA47
    524     {0,0}, {4,16}, {6,32}, {10,48}, {16,0}, {24,16}, {28,32}, {36,48}, {32,0}, {40,16}, {44,32}, {52,48},
    525     {48,0}, {56,16}, {60,32}, {68,48}, {64,0}, {72,16}, {76,32}, {84,48}, {80,0}, {88,16}, {92,32}, {100,48},
    526     {96,0}, {104,16}, {108,32}, {116,48}, {112,0}, {120,16}, {124,32}, {132,48}, {128,0}, {136,16}, {140,32},
    527     {148,48}, {144,0}, {152,16}, {156,32}, {164,48}, {160,0}, {168,16}, {172,32}, {180,48}, {176,0}, {184, 16}, {188,32},
    528     {255,255},// LA48 does not exist, dummy
    529     // LA49..LA50
    530     {192,0}, {200,16},
    531     {255,255},// LA51 does not exit, dummy
    532     // LA52..LA60
    533     {210,48}, {216,0}, {220,16}, {214,32}, {222,64}, {2,64}, {22,64}, {42,64}, {102,64},
    534     {255,255},// LA61 does not exit, dummy
    535     {162,64}, {182,64}, {202,64}
    536 };
    537 const Point g_map_led_to_point_polar[BACKLIGHT_LED_COUNT] PROGMEM = {
    538     // LA1..LA47
    539     {96,255}, {109,255}, {128,242}, {148,255}, {93,255}, {105,238}, {128,192}, {154,216}, {89,255}, {101,208}, {128,155}, {159,188},
    540     {85,255}, {96,181}, {128,119}, {165,163}, {81,255}, {89,157}, {128,82}, {173,143}, {75,255}, {81,139}, {128,46}, {183,131},
    541     {70,255}, {70,129}, {129,9}, {195,128}, {64,255}, {58,129}, {255,27}, {206,136}, {58,255}, {47,139}, {255,64}, {215,152},
    542     {53,255}, {39,157}, {255,101}, {222,175}, {47,255}, {32,181}, {255,137}, {228,201}, {43,255}, {27,208}, {255, 174},
    543     {255,255},// LA48 does not exist, dummy
    544     // LA49..LA50
    545     {39,255}, {23,238},
    546     {255,255},// LA51 does not exit, dummy
    547     // LA52..LA60
    548     {235,255}, {33,255}, {19,255}, {255,233}, {224,255}, {160,255}, {164,255}, {169,255}, {188,255},
    549     {255,255},// LA61 does not exit, dummy
    550     {209,255}, {215,255}, {220,255}
    551 };
    552 #elif defined(RGB_BACKLIGHT_HS60) && defined(HS60_HHKB)
    553 const Point g_map_led_to_point[BACKLIGHT_LED_COUNT] PROGMEM = {
    554     // LA1..LA60
    555     {0,0}, {4,16}, {6,32}, {10,48}, {16,0}, {24,16}, {28,32}, {36,48}, {32,0}, {40,16}, {44,32}, {52,48},
    556     {48,0}, {56,16}, {60,32}, {68,48}, {64,0}, {72,16}, {76,32}, {84,48}, {80,0}, {88,16}, {92,32}, {100,48},
    557     {96,0}, {104,16}, {108,32}, {116,48}, {112,0}, {120,16}, {124,32}, {132,48}, {128,0}, {136,16}, {140,32},
    558     {148,48}, {144,0}, {152,16}, {156,32}, {164,48}, {160,0}, {168,16}, {172,32}, {180,48}, {176,0}, {184, 16}, {188,32},
    559     {224,0}, {192,0}, {200,16}, {202,48}, {224,48}, {208,0}, {220,16}, {214,32}, {220,64}, {4,64}, {24,64}, {44,64}, {112,64},
    560     {255,255}, {255,255}, // LA61..LA62 does not exit, dummy
    561     // LA63..LA64
    562     {180,64}, {200,64}
    563 };
    564 const Point g_map_led_to_point_polar[BACKLIGHT_LED_COUNT] PROGMEM = {
    565     // LA1..LA60
    566     {96,255}, {109,255}, {128,242}, {148,255}, {93,255}, {105,238}, {128,192}, {154,216}, {89,255}, {101,208}, {128,155}, {159,188},
    567     {85,255}, {96,181}, {128,119}, {165,163}, {81,255}, {89,157}, {128,82}, {173,143}, {75,255}, {81,139}, {128,46}, {183,131},
    568     {70,255}, {70,129}, {129,9}, {195,128}, {64,255}, {58,129}, {255,27}, {206,136}, {58,255}, {47,139}, {255,64}, {215,152},
    569     {53,255}, {39,157}, {255,101}, {222,175}, {47,255}, {32,181}, {255,137}, {228,201}, {43,255}, {27,208}, {255, 174}, {32,255},
    570     {39,255}, {23,238}, {233,242}, {237,255}, {35,255}, {19,255}, {255,233}, {223,255}, {161,255}, {165,255}, {170,255}, {192,255},
    571     {255,255}, {255,255}, // LA61..LA62 does not exit, dummy
    572     // LA63..LA64
    573     {214,255}, {219,255}
    574 };
    575 #elif defined(RGB_BACKLIGHT_HS60) //HS60_ISO
    576 const Point g_map_led_to_point[BACKLIGHT_LED_COUNT] PROGMEM = {
    577     // LA1..LA50
    578     {0,0}, {4,16}, {6,32}, {2,48}, {16,0}, {24,16}, {28,32}, {36,48}, {32,0}, {40,16}, {44,32}, {52,48}, {48,0},
    579     {56,16}, {60,32}, {68,48}, {64,0}, {72,16}, {76,32}, {84,48}, {80,0}, {88,16}, {92,32}, {100,48}, {96,0}, {104,16}, 
    580     {108,32}, {116,48}, {112,0}, {120,16}, {124,32}, {132,48}, {128,0}, {136,16}, {140,32}, {148,48}, {144,0}, {152,16},
    581     {156,32}, {164,48}, {160,0}, {168,16}, {172,32}, {180,48}, {176,0}, {184, 16}, {188,32}, {20,48}, {192,0}, {200,16},
    582     {255,255},// LA51 does not exit, dummy
    583     // LA52..LA60
    584     {210,48}, {216,0}, {220,16}, {222,24}, {222,64}, {2,64}, {22,64}, {42,64}, {102,64},
    585     {255,255},// LA61 does not exit, dummy
    586     {162,64}, {182,64}, {202,64}
    587 };
    588 const Point g_map_led_to_point_polar[BACKLIGHT_LED_COUNT] PROGMEM = {
    589     // LA1..LA50
    590     {96,255}, {109,255}, {128,242}, {147,255}, {93,255}, {105,238}, {128,192}, {154,216}, {89,255}, {101,208}, {128,155}, {159,188}, {85,255},
    591     {96,181}, {128,119}, {165,163}, {81,255}, {89,157}, {128,82}, {173,143}, {75,255}, {81,139}, {128,46}, {183,131}, {70,255}, {70,129},
    592     {129,9}, {195,128}, {64,255}, {58,129}, {255,27}, {206,136}, {58,255}, {47,139}, {255,64}, {215,152}, {53,255}, {39,157}, {255,101}, 
    593     {222,175}, {47,255}, {32,181}, {255,137}, {228,201}, {43,255}, {27,208}, {255, 174}, {150,246}, {39,255}, {23,238},
    594     {255,255},// LA51 does not exit, dummy
    595     // LA52..LA60
    596     {235,255}, {33,255}, {19,255}, {10,255}, {224,255}, {160,255}, {164,255}, {169,255}, {188,255},
    597     {255,255},// LA61 does not exit, dummy
    598     {209,255}, {215,255}, {220,255}
    599 };
    600 #elif defined(RGB_BACKLIGHT_NK65)
    601 const Point g_map_led_to_point[BACKLIGHT_LED_COUNT] PROGMEM = {
    602     // LA1..LA60
    603     {0,0}, {4,16}, {6,32}, {10,48}, {16,0}, {24,16}, {28,32}, {36,48}, {32,0}, {40,16}, {44,32}, {52,48},
    604     {48,0}, {56,16}, {60,32}, {68,48}, {64,0}, {72,16}, {76,32}, {84,48}, {80,0}, {88,16}, {92,32}, {100,48},
    605     {96,0}, {104,16}, {108,32}, {116,48}, {112,0}, {120,16}, {124,32}, {132,48}, {128,0}, {136,16}, {140,32},
    606     {148,48}, {144,0}, {152,16}, {156,32}, {164,48}, {160,0}, {168,16}, {172,32}, {180,48}, {176,0}, {184, 16}, {188,32},
    607     {160,64}, {192,0}, {200,16}, {210,48}, {224,48}, {216,0}, {220,16}, {214,32}, {224,64}, {2,64}, {22,64}, {42,64}, {102,64},
    608     {255,255},// LA61 does not exit, dummy
    609     //LA62..LB5
    610     {176,64}, {192,64}, {208,64}, {240,0}, {240,16}, {240,48}, {240,64}, {240,32}
    611 };
    612 const Point g_map_led_to_point_polar[BACKLIGHT_LED_COUNT] PROGMEM = {
    613     // LA1..LA60
    614     {96,255}, {109,255}, {128,242}, {148,255}, {93,255}, {105,238}, {128,192}, {154,216}, {89,255}, {101,208}, {128,155}, {159,188},
    615     {85,255}, {96,181}, {128,119}, {165,163}, {81,255}, {89,157}, {128,82}, {173,143}, {75,255}, {81,139}, {128,46}, {183,131},
    616     {70,255}, {70,129}, {129,9}, {195,128}, {64,255}, {58,129}, {255,27}, {206,136}, {58,255}, {47,139}, {255,64}, {215,152},
    617     {53,255}, {39,157}, {255,101}, {222,175}, {47,255}, {32,181}, {255,137}, {228,201}, {43,255}, {27,208}, {255, 174},
    618     {208,255}, {39,255}, {23,238}, {235,255}, {235,255}, {33,255}, {19,255}, {255,233}, {224,255}, {160,255}, {164,255}, {169,255}, {188,255},
    619     {255,255},// LA61 does not exit, dummy
    620     //LA62..LB5
    621     {221,255}, {225,255}, {229,255}, {22,255}, {12,255}, {244,255}, {234,255}, {255,255},
    622 };
    623 #elif defined(RGB_BACKLIGHT_M6_B)
    624 // M6-B is really simple:
    625 // 0 3 5
    626 // 1 2 4
    627 const Point g_map_led_to_point[BACKLIGHT_LED_COUNT] PROGMEM = {
    628     {0,0}, {0,16}, {16,16}, {16,0}, {32,16}, {32,0}
    629 };
    630 const Point g_map_led_to_point_polar[BACKLIGHT_LED_COUNT] PROGMEM = {
    631     {160,255}, {96,255}, {77,255}, {179,255}, {51,255}, {205,255}
    632 };
    633 #endif
    634 
    635 // This may seem counter-intuitive, but it's quite flexible.
    636 // For each LED, get it's position to decide what color to make it.
    637 // This solves the issue of LEDs (and switches) not aligning to a grid,
    638 // or having a large "bitmap" and sampling them.
    639 void map_led_to_point( uint8_t index, Point *point )
    640 {
    641     // Slightly messy way to get Point structs out of progmem.
    642     uint8_t *addr = (uint8_t*)&g_map_led_to_point[index];
    643     point->x = pgm_read_byte(addr);
    644     point->y = pgm_read_byte(addr+1);
    645 
    646 #if defined(RGB_BACKLIGHT_M6_B) || defined(RGB_BACKLIGHT_HS60) || defined(RGB_BACKLIGHT_NK65)
    647     return;
    648 #endif
    649 
    650     switch (index)
    651     {
    652         case 18+4: // LB4A
    653             if ( g_config.use_split_backspace )
    654                 point->x -= 8;
    655             break;
    656 #if defined(RGB_BACKLIGHT_ZEAL60)
    657         case 18+14: // LB14A
    658             if ( g_config.use_iso_enter )
    659                 point->y += 8; // extremely pedantic
    660             break;
    661         case 54+5: // LD5A
    662             if ( !g_config.use_iso_enter )
    663                 point->x -= 10;
    664             break;
    665         case 36+16: // LC16A
    666             if ( !g_config.use_split_left_shift )
    667                 point->x += 8;
    668             break;
    669 #endif
    670 #if defined(RGB_BACKLIGHT_ZEAL60) || defined(RGB_BACKLIGHT_M60_A)
    671         case 36+0: // LC0A
    672             if ( g_config.use_7u_spacebar )
    673                 point->x += 10;
    674             break;
    675         case 36+6: // LC6A
    676             if ( g_config.use_7u_spacebar )
    677                 point->x += 4;
    678             break;
    679         case 54+7: // LD7A
    680             if ( !g_config.use_split_right_shift )
    681                 point->x -= 8;
    682             break;
    683 #endif
    684     }
    685 }
    686 
    687 void map_led_to_point_polar( uint8_t index, Point *point )
    688 {
    689     // Slightly messy way to get Point structs out of progmem.
    690     uint8_t *addr = (uint8_t*)&g_map_led_to_point_polar[index];
    691     point->x = pgm_read_byte(addr);
    692     point->y = pgm_read_byte(addr+1);
    693 }
    694 
    695 //
    696 // Maps switch matrix coordinate (row,col) to LED index
    697 //
    698 
    699 
    700 #if defined(RGB_BACKLIGHT_ZEAL65)
    701 // Note: Left spacebar stab is at 4,2 (LC7)
    702 // Right spacebar stab is at 4,9 (D14)
    703 //
    704 // A17, A16, A15, A14, A13, A12, A11, A10,  A9,  B0,  B1,  B2,  B3,  B4,  B6
    705 //  A7,  A6,  A5,  A4,  A3,  A2,  A1,  A0,  B9, B10, B11, B12, B13, B14,  B7
    706 //  A8, C14, C13, C12, C11, C10,  C9,  D0,  D1,  D2,  D3,  D4,  D5,  B5,  B8
    707 // C16, C15,  C5,  C4,  C3,  C2,  C1,  D9, D10, D11, D12,  D6,  D7,  D8, B15
    708 // C17,  C8,  C7, ---, ---, ---, ---,  C0, ---, D14, D15, D16, D17, B17, B16
    709 const uint8_t g_map_row_column_to_led[MATRIX_ROWS][MATRIX_COLS] PROGMEM = {
    710     {  0+17,  0+16,  0+15,  0+14,  0+13,  0+12,  0+11,  0+10,   0+9,  18+0,  18+1,  18+2,  18+3,  18+4,  18+6 },
    711     {   0+7,   0+6,   0+5,   0+4,   0+3,   0+2,   0+1,   0+0,  18+9, 18+10, 18+11, 18+12, 18+13, 18+14,  18+7 },
    712     {   0+8, 36+14, 36+13, 36+12, 36+11, 36+10,  36+9,  54+0,  54+1,  54+2,  54+3,  54+4,  54+5,  18+5,  18+8 },
    713     { 36+16, 36+15,  36+5,  36+4,  36+3,  36+2,  36+1,  54+9, 54+10, 54+11, 54+12,  54+6,  54+7,  54+8, 18+15 },
    714     { 36+17,  36+8,  36+7,   255,   255,   255,   255,  36+0,  255,  54+14, 54+15, 54+16, 54+17, 18+17, 18+16 }
    715 };
    716 #elif defined(RGB_BACKLIGHT_KOYU)
    717 // Note: Left spacebar stab is at 4,4 (LC6)
    718 // Right spacebar stab is at 4,10 (D14)
    719 //
    720 // A17, A16, A15, A14, A13, A12, A11, A10,  A9,  B0,  B1,  B2,  B3,  B4,  B6
    721 //  A7,  A6,  A5,  A4,  A3,  A2,  A1,  A0,  B9, B10, B11, B12, B13, B14,  B7
    722 //  A8, C14, C13, C12, C11, C10,  C9,  D0,  D1,  D2,  D3,  D4,  D5,  B5,  B8
    723 // C16, C15,  C5,  C4,  C3,  C2,  C1,  D9, D10, D11, D12,  D6,  D7,  D8, B15
    724 // C17,  C8,  C7,  C6, ---, ---, ---,  C0, ---, ---, D14, D15, D16, B17, B16
    725 const uint8_t g_map_row_column_to_led[MATRIX_ROWS][MATRIX_COLS] PROGMEM = {
    726     {  0+17,  0+16,  0+15,  0+14,  0+13,  0+12,  0+11,  0+10,   0+9,  18+0,  18+1,  18+2,  18+3,  18+4,  18+6 },
    727     {   0+7,   0+6,   0+5,   0+4,   0+3,   0+2,   0+1,   0+0,  18+9, 18+10, 18+11, 18+12, 18+13, 18+14,  18+7 },
    728     {   0+8, 36+14, 36+13, 36+12, 36+11, 36+10,  36+9,  54+0,  54+1,  54+2,  54+3,  54+4,  54+5,  18+5,  18+8 },
    729     { 36+16, 36+15,  36+5,  36+4,  36+3,  36+2,  36+1,  54+9, 54+10, 54+11, 54+12,  54+6,  54+7,  54+8, 18+15 },
    730     { 36+17,  36+8,  36+7,  36+6,   255,   255,   255,  36+0,  255,    255, 54+14, 54+15, 54+16, 18+17, 18+16 }
    731 };
    732 #elif defined(RGB_BACKLIGHT_ZEAL60) || defined(RGB_BACKLIGHT_M60_A)
    733 // Note: Left spacebar stab is at 4,3 (LC6)
    734 // Right spacebar stab is at 4,9 (LD13) or 4,10 (LD14)
    735 //
    736 // A17, A16, A15, A14, A13, A12, A11, A10,  A9,  B0,  B1,  B2,  B3,  B4,
    737 //  A7,  A6,  A5,  A4,  A3,  A2,  A1,  A0,  B9, B10, B11, B12, B13, B14,
    738 //  A8, C14, C13, C12, C11, C10,  C9,  D0,  D1,  D2,  D3,  D4,  D5,  B5,
    739 // C16, C15,  C5,  C4,  C3,  C2,  C1,  D9, D10, D11, D12,  D6,  D7,  D8,
    740 // C17,  C8,  C7,  C6, ---, ---, ---,  C0, ---, D13, D14, D15, D16, D17,
    741 const uint8_t g_map_row_column_to_led[MATRIX_ROWS][MATRIX_COLS] PROGMEM = {
    742     {  0+17,  0+16,  0+15,  0+14,  0+13,  0+12,  0+11,  0+10,   0+9,  18+0,  18+1,  18+2,  18+3,  18+4 },
    743     {   0+7,   0+6,   0+5,   0+4,   0+3,   0+2,   0+1,   0+0,  18+9, 18+10, 18+11, 18+12, 18+13, 18+14 },
    744     {   0+8, 36+14, 36+13, 36+12, 36+11, 36+10,  36+9,  54+0,  54+1,  54+2,  54+3,  54+4,  54+5,  18+5 },
    745     { 36+16, 36+15,  36+5,  36+4,  36+3,  36+2,  36+1,  54+9, 54+10, 54+11, 54+12,  54+6,  54+7,  54+8 },
    746     { 36+17,  36+8,  36+7,  36+6,   255,   255,   255,  36+0,  255,  54+13, 54+14, 54+15, 54+16, 54+17 }
    747 };
    748 #elif defined(RGB_BACKLIGHT_HS60) && defined(HS60_ANSI)
    749 //
    750 // LA1,  LA5,  LA9,  LA13, LA17, LA21, LA25, LA29, LA33, LA37, LA41, LA45, LA49, LA53,
    751 // LA2,  LA6,  LA10, LA14, LA18, LA22, LA26, LA30, LA34, LA38, LA42, LA46, LA50,  ---,
    752 // LA3,  LA7,  LA11, LA15, LA19, LA23, LA27, LA31, LA35, LA39, LA43, LA47, LA54, LA55,
    753 // LA4,  ---,   LA8, LA12, LA16, LA20, LA24, LA28, LA32, LA36, LA40, LA44,  ---, LA52,
    754 // LA57, LA58, LA59,  ---,  ---,  ---, LA60,  ---,  ---,  ---, LA62, LA63, LA64, LA56
    755 const uint8_t g_map_row_column_to_led[MATRIX_ROWS][MATRIX_COLS] PROGMEM = {
    756     {  1-1,  5-1,  9-1, 13-1, 17-1, 21-1, 25-1, 29-1, 33-1, 37-1, 41-1, 45-1, 49-1, 53-1 },
    757     {  2-1,  6-1, 10-1, 14-1, 18-1, 22-1, 26-1, 30-1, 34-1, 38-1, 42-1, 46-1, 50-1,  255 },
    758     {  3-1,  7-1, 11-1, 15-1, 19-1, 23-1, 27-1, 31-1, 35-1, 39-1, 43-1, 47-1, 54-1, 55-1 },
    759     {  4-1,  255,  8-1, 12-1, 16-1, 20-1, 24-1, 28-1, 32-1, 36-1, 40-1, 44-1,  255, 52-1 },
    760     { 57-1, 58-1, 59-1,  255,  255,  255, 60-1,  255,  255,  255, 62-1, 63-1, 64-1, 56-1 }
    761 };
    762 #elif defined(RGB_BACKLIGHT_HS60) && defined(HS60_HHKB)
    763 //
    764 // LA1,  LA5,   LA9, LA13, LA17, LA21, LA25, LA29, LA33, LA37, LA41, LA45, LA49, LA53,
    765 // LA2,  LA6,  LA10, LA14, LA18, LA22, LA26, LA30, LA34, LA38, LA42, LA46, LA50, LA48,
    766 // LA3,  LA7,  LA11, LA15, LA19, LA23, LA27, LA31, LA35, LA39, LA43, LA47, LA54, LA55,
    767 // LA4,  ---,   LA8, LA12, LA16, LA20, LA24, LA28, LA32, LA36, LA40, LA44, LA51, LA52,
    768 // LA57, LA58, LA59,  ---,  ---,  ---, LA60,  ---,  ---,  ---,  ---, LA63, LA64, LA56
    769 const uint8_t g_map_row_column_to_led[MATRIX_ROWS][MATRIX_COLS] PROGMEM = {
    770     {  1-1,  5-1,  9-1, 13-1, 17-1, 21-1, 25-1, 29-1, 33-1, 37-1, 41-1, 45-1, 49-1, 53-1 },
    771     {  2-1,  6-1, 10-1, 14-1, 18-1, 22-1, 26-1, 30-1, 34-1, 38-1, 42-1, 46-1, 50-1, 48-1 },
    772     {  3-1,  7-1, 11-1, 15-1, 19-1, 23-1, 27-1, 31-1, 35-1, 39-1, 43-1, 47-1, 54-1, 55-1 },
    773     {  4-1,  255,  8-1, 12-1, 16-1, 20-1, 24-1, 28-1, 32-1, 36-1, 40-1, 44-1, 51-1, 52-1 },
    774     { 57-1, 58-1, 59-1,  255,  255,  255, 60-1,  255,  255,  255,  255, 63-1, 64-1, 56-1 }
    775 };
    776 #elif defined(RGB_BACKLIGHT_HS60) //HS60_ISO
    777 //
    778 // LA1,  LA5,   LA9, LA13, LA17, LA21, LA25, LA29, LA33, LA37, LA41, LA45, LA49, LA53,
    779 // LA2,  LA6,  LA10, LA14, LA18, LA22, LA26, LA30, LA34, LA38, LA42, LA46, LA50,  ---,
    780 // LA3,  LA7,  LA11, LA15, LA19, LA23, LA27, LA31, LA35, LA39, LA43, LA47, LA54, LA55,
    781 // LA4,  LA48,  LA8, LA12, LA16, LA20, LA24, LA28, LA32, LA36, LA40, LA44,  ---, LA52,
    782 // LA57, LA58, LA59,  ---,  ---,  ---, LA60,  ---,  ---,  ---, LA62, LA63, LA64, LA56
    783 const uint8_t g_map_row_column_to_led[MATRIX_ROWS][MATRIX_COLS] PROGMEM = {
    784     {  1-1,  5-1,  9-1, 13-1, 17-1, 21-1, 25-1, 29-1, 33-1, 37-1, 41-1, 45-1, 49-1, 53-1 },
    785     {  2-1,  6-1, 10-1, 14-1, 18-1, 22-1, 26-1, 30-1, 34-1, 38-1, 42-1, 46-1, 50-1,  255 },
    786     {  3-1,  7-1, 11-1, 15-1, 19-1, 23-1, 27-1, 31-1, 35-1, 39-1, 43-1, 47-1, 54-1, 55-1 },
    787     {  4-1, 48-1,  8-1, 12-1, 16-1, 20-1, 24-1, 28-1, 32-1, 36-1, 40-1, 44-1,  255, 52-1 },
    788     { 57-1, 58-1, 59-1,  255,  255,  255, 60-1,  255,  255,  255, 62-1, 63-1, 64-1, 56-1 }
    789 };
    790 #elif defined(RGB_BACKLIGHT_NK65)
    791 //
    792 // LA1,  LA5,  LA9,  LA13, LA17, LA21, LA25, LA29, LA33, LA37, LA41, LA45, LA49, LA53, LB1,
    793 // LA2,  LA6,  LA10, LA14, LA18, LA22, LA26, LA30, LA34, LA38, LA42, LA46, LA50,  ---, LB2,
    794 // LA3,  LA7,  LA11, LA15, LA19, LA23, LA27, LA31, LA35, LA39, LA43, LA47, LA54, LA55, LB5,
    795 // LA4,  ---,   LA8, LA12, LA16, LA20, LA24, LA28, LA32, LA36, LA40, LA44, LA51, LA52, LB3,
    796 // LA57, LA58, LA59,  ---,  ---,  ---, LA60,  ---,  ---, LA48, LA62, LA63, LA64, LA56, LB4
    797 const uint8_t g_map_row_column_to_led[MATRIX_ROWS][MATRIX_COLS] PROGMEM = {
    798     {  1-1,  5-1,  9-1, 13-1, 17-1, 21-1, 25-1, 29-1, 33-1, 37-1, 41-1, 45-1, 49-1, 53-1, 1+64-1 },
    799     {  2-1,  6-1, 10-1, 14-1, 18-1, 22-1, 26-1, 30-1, 34-1, 38-1, 42-1, 46-1, 50-1,  255, 2+64-1 },
    800     {  3-1,  7-1, 11-1, 15-1, 19-1, 23-1, 27-1, 31-1, 35-1, 39-1, 43-1, 47-1, 54-1, 55-1, 5+64-1 },
    801     {  4-1,  255,  8-1, 12-1, 16-1, 20-1, 24-1, 28-1, 32-1, 36-1, 40-1, 44-1, 51-1, 52-1, 3+64-1 },
    802     { 57-1, 58-1, 59-1,  255,  255,  255, 60-1,  255,  255, 48-1, 62-1, 63-1, 64-1, 56-1, 4+64-1 }
    803 };
    804 #elif defined(RGB_BACKLIGHT_M6_B)
    805 // M6-B is really simple:
    806 // 0 3 5
    807 // 1 2 4
    808 const uint8_t g_map_row_column_to_led[MATRIX_ROWS][MATRIX_COLS] PROGMEM = {
    809     {     0,     3,     5,     1,     2,     4 }
    810 };
    811 #endif
    812 
    813 void map_row_column_to_led( uint8_t row, uint8_t column, uint8_t *led )
    814 {
    815     *led = 255;
    816     if ( row < MATRIX_ROWS && column < MATRIX_COLS )
    817     {
    818         *led = pgm_read_byte(&g_map_row_column_to_led[row][column]);
    819     }
    820 }
    821 
    822 void backlight_update_pwm_buffers(void)
    823 {
    824 #if defined(RGB_BACKLIGHT_M6_B)
    825     IS31FL3218_update_pwm_buffers();
    826 #elif defined(RGB_BACKLIGHT_HS60)
    827     IS31FL3733_update_pwm_buffers( ISSI_ADDR_1, 0 );
    828     IS31FL3733_update_led_control_registers( ISSI_ADDR_1, 0 );
    829 #elif defined(RGB_BACKLIGHT_NK65)
    830     IS31FL3733_update_pwm_buffers( ISSI_ADDR_1, 0 );
    831     IS31FL3733_update_pwm_buffers( ISSI_ADDR_2, 1 );
    832     IS31FL3733_update_led_control_registers( ISSI_ADDR_1, 0 );
    833     IS31FL3733_update_led_control_registers( ISSI_ADDR_2, 1 );
    834 #else
    835     IS31FL3731_update_pwm_buffers( ISSI_ADDR_1, ISSI_ADDR_2 );
    836     IS31FL3731_update_led_control_registers( ISSI_ADDR_1, ISSI_ADDR_2 );
    837 #endif
    838 }
    839 
    840 void backlight_set_color( int index, uint8_t red, uint8_t green, uint8_t blue )
    841 {
    842 #if defined(RGB_BACKLIGHT_M6_B)
    843     IS31FL3218_set_color( index, red, green, blue );
    844 #elif defined(RGB_BACKLIGHT_HS60) || defined(RGB_BACKLIGHT_NK65)
    845     IS31FL3733_set_color( index, red, green, blue );
    846 #else
    847     IS31FL3731_set_color( index, red, green, blue );
    848 #endif
    849 }
    850 
    851 void backlight_set_color_all( uint8_t red, uint8_t green, uint8_t blue )
    852 {
    853 #if defined(RGB_BACKLIGHT_M6_B)
    854     IS31FL3218_set_color_all( red, green, blue );
    855 #elif defined(RGB_BACKLIGHT_HS60) || defined(RGB_BACKLIGHT_NK65)
    856     IS31FL3733_set_color_all( red, green, blue );
    857 #else
    858     IS31FL3731_set_color_all( red, green, blue );
    859 #endif
    860 }
    861 
    862 void backlight_set_key_hit(uint8_t row, uint8_t column)
    863 {
    864     uint8_t led;
    865     map_row_column_to_led(row,column,&led);
    866     g_key_hit[led] = 0;
    867 
    868     g_any_key_hit = 0;
    869 }
    870 
    871 #if !defined(RGB_BACKLIGHT_HS60) && !defined(RGB_BACKLIGHT_NK65)
    872 // This is (F_CPU/1024) / 20 Hz
    873 // = 15625 Hz / 20 Hz
    874 // = 781
    875 #define TIMER3_TOP 781
    876 
    877 void backlight_timer_init(void)
    878 {
    879     static uint8_t backlight_timer_is_init = 0;
    880     if ( backlight_timer_is_init )
    881     {
    882         return;
    883     }
    884     backlight_timer_is_init = 1;
    885 
    886     // Timer 3 setup
    887     TCCR3B = _BV(WGM32) |           // CTC mode OCR3A as TOP
    888              _BV(CS32) | _BV(CS30); // prescale by /1024
    889     // Set TOP value
    890     uint8_t sreg = SREG;
    891     cli();
    892 
    893     OCR3AH = (TIMER3_TOP >> 8) & 0xff;
    894     OCR3AL = TIMER3_TOP & 0xff;
    895     SREG = sreg;
    896 }
    897 
    898 void backlight_timer_enable(void)
    899 {
    900     TIMSK3 |= _BV(OCIE3A);
    901 }
    902 
    903 void backlight_timer_disable(void)
    904 {
    905     TIMSK3 &= ~_BV(OCIE3A);
    906 }
    907 #else //STM32, use GPT with TIM4. Enable in halconf.h
    908 static void gpt_backlight_timer_task(GPTDriver *gptp);
    909 // Timer setup at 200Khz, callback at 10k ticks = 20Hz
    910 static GPTConfig gpt4cfg1 = {
    911     .frequency = 200000U,
    912     .callback  = gpt_backlight_timer_task
    913 };
    914 
    915 void backlight_timer_init(void)
    916 {
    917     gptStart(&GPTD4, &gpt4cfg1);
    918 }
    919 
    920 void backlight_timer_enable(void)
    921 {
    922     gptStartContinuous(&GPTD4, 10000);
    923 }
    924 
    925 void backlight_timer_disable(void)
    926 {
    927     gptStopTimer(&GPTD4);
    928 }
    929 #endif //!defined(RGB_BACKLIGHT_HS60) && !defined(RGB_BACKLIGHT_NK65)
    930 
    931 void backlight_set_suspend_state(bool state)
    932 {
    933     g_suspend_state = state;
    934 }
    935 
    936 void backlight_set_indicator_state(uint8_t state)
    937 {
    938     g_indicator_state = state;
    939 }
    940 
    941 void backlight_effect_rgb_test(void)
    942 {
    943     // Mask out bits 4 and 5
    944     // This 2-bit value will stay the same for 16 ticks.
    945     switch ( (g_tick & 0x30) >> 4 )
    946     {
    947         case 0:
    948         {
    949             backlight_set_color_all( 255, 0, 0 );
    950             break;
    951         }
    952         case 1:
    953         {
    954             backlight_set_color_all( 0, 255, 0 );
    955             break;
    956         }
    957         case 2:
    958         {
    959             backlight_set_color_all( 0, 0, 255 );
    960             break;
    961         }
    962         case 3:
    963         {
    964             backlight_set_color_all( 255, 255, 255 );
    965             break;
    966         }
    967     }
    968 }
    969 
    970 #if defined(RGB_DEBUGGING_ONLY)
    971 // This tests the LEDs
    972 // Note that it will change the LED control registers
    973 // in the LED drivers, and leave them in an invalid
    974 // state for other backlight effects.
    975 // ONLY USE THIS FOR TESTING LEDS!
    976 void backlight_effect_single_LED_test(void)
    977 {
    978     static uint8_t color = 0; // 0,1,2 for R,G,B
    979     static uint8_t row = 0;
    980     static uint8_t column = 0;
    981 
    982     static uint8_t tick = 0;
    983     tick++;
    984 
    985     if ( tick > 2 )
    986     {
    987         tick = 0;
    988         column++;
    989     }
    990     if ( column > 14 )
    991     {
    992         column = 0;
    993         row++;
    994     }
    995     if ( row > 4 )
    996     {
    997         row = 0;
    998         color++;
    999     }
   1000     if ( color > 2 )
   1001     {
   1002         color = 0;
   1003     }
   1004 
   1005     uint8_t led;
   1006     map_row_column_to_led( row, column, &led );
   1007     backlight_set_color_all( 255, 255, 255 );
   1008     backlight_test_led( led, color==0, color==1, color==2 );
   1009 }
   1010 #endif // defined(RGB_DEBUGGING_ONLY)
   1011 
   1012 // All LEDs off
   1013 void backlight_effect_all_off(void)
   1014 {
   1015     backlight_set_color_all( 0, 0, 0 );
   1016 }
   1017 
   1018 // Solid color
   1019 void backlight_effect_solid_color(void)
   1020 {
   1021     HSV hsv = { .h = g_config.color_1.h, .s = g_config.color_1.s, .v = g_config.brightness };
   1022     RGB rgb = hsv_to_rgb( hsv );
   1023     backlight_set_color_all( rgb.r, rgb.g, rgb.b );
   1024 }
   1025 
   1026 // alphas = color1, mods = color2
   1027 void backlight_effect_alphas_mods(void)
   1028 {
   1029     RGB rgb1 = hsv_to_rgb( (HSV){ .h = g_config.color_1.h, .s = g_config.color_1.s, .v = g_config.brightness } );
   1030     RGB rgb2 = hsv_to_rgb( (HSV){ .h = g_config.color_2.h, .s = g_config.color_2.s, .v = g_config.brightness } );
   1031 
   1032     for ( int row = 0; row < MATRIX_ROWS; row++ )
   1033     {
   1034         for ( int column = 0; column < MATRIX_COLS; column++ )
   1035         {
   1036             uint8_t index;
   1037             map_row_column_to_led( row, column, &index );
   1038             if ( index < BACKLIGHT_LED_COUNT )
   1039             {
   1040                 if ( ( g_config.alphas_mods[row] & (1<<column) ) == 0 )
   1041                 {
   1042                     backlight_set_color( index, rgb1.r, rgb1.g, rgb1.b );
   1043                 }
   1044                 else
   1045                 {
   1046                     backlight_set_color( index, rgb2.r, rgb2.g, rgb2.b );
   1047                 }
   1048             }
   1049         }
   1050     }
   1051 }
   1052 
   1053 void backlight_effect_gradient_up_down(void)
   1054 {
   1055     int16_t h1 = g_config.color_1.h;
   1056     int16_t h2 = g_config.color_2.h;
   1057     int16_t deltaH = h2 - h1;
   1058 
   1059     // Take the shortest path between hues
   1060     if ( deltaH > 127 )
   1061     {
   1062         deltaH -= 256;
   1063     }
   1064     else if ( deltaH < -127 )
   1065     {
   1066         deltaH += 256;
   1067     }
   1068     // Divide delta by 4, this gives the delta per row
   1069     deltaH /= 4;
   1070 
   1071     int16_t s1 = g_config.color_1.s;
   1072     int16_t s2 = g_config.color_2.s;
   1073     int16_t deltaS = ( s2 - s1 ) / 4;
   1074 
   1075     HSV hsv = { .h = 0, .s = 255, .v = g_config.brightness };
   1076     RGB rgb;
   1077     Point point;
   1078     for ( int i=0; i<BACKLIGHT_LED_COUNT; i++ )
   1079     {
   1080         map_led_to_point( i, &point );
   1081         // The y range will be 0..64, map this to 0..4
   1082         uint8_t y = (point.y>>4);
   1083         // Relies on hue being 8-bit and wrapping
   1084         hsv.h = g_config.color_1.h + ( deltaH * y );
   1085         hsv.s = g_config.color_1.s + ( deltaS * y );
   1086         rgb = hsv_to_rgb( hsv );
   1087         backlight_set_color( i, rgb.r, rgb.g, rgb.b );
   1088     }
   1089 }
   1090 
   1091 void backlight_effect_raindrops(bool initialize)
   1092 {
   1093     int16_t h1 = g_config.color_1.h;
   1094     int16_t h2 = g_config.color_2.h;
   1095     int16_t deltaH = h2 - h1;
   1096     deltaH /= 4;
   1097 
   1098     // Take the shortest path between hues
   1099     if ( deltaH > 127 )
   1100     {
   1101         deltaH -= 256;
   1102     }
   1103     else if ( deltaH < -127 )
   1104     {
   1105         deltaH += 256;
   1106     }
   1107 
   1108     int16_t s1 = g_config.color_1.s;
   1109     int16_t s2 = g_config.color_2.s;
   1110     int16_t deltaS = ( s2 - s1 ) / 4;
   1111 
   1112     HSV hsv;
   1113     RGB rgb;
   1114 
   1115     // Change one LED every tick
   1116     uint8_t led_to_change = ( g_tick & 0x000 ) == 0 ? rand() % BACKLIGHT_LED_COUNT : 255;
   1117 
   1118     for ( int i=0; i<BACKLIGHT_LED_COUNT; i++ )
   1119     {
   1120         // If initialize, all get set to random colors
   1121         // If not, all but one will stay the same as before.
   1122         if ( initialize || i == led_to_change )
   1123         {
   1124             hsv.h = h1 + ( deltaH * ( rand() & 0x03 ) );
   1125             hsv.s = s1 + ( deltaS * ( rand() & 0x03 ) );
   1126             // Override brightness with global brightness control
   1127             hsv.v = g_config.brightness;;
   1128 
   1129             rgb = hsv_to_rgb( hsv );
   1130             backlight_set_color( i, rgb.r, rgb.g, rgb.b );
   1131         }
   1132     }
   1133 }
   1134 
   1135 void backlight_effect_cycle_all(void)
   1136 {
   1137     uint8_t offset = ( g_tick << g_config.effect_speed ) & 0xFF;
   1138 
   1139     // Relies on hue being 8-bit and wrapping
   1140     for ( int i=0; i<BACKLIGHT_LED_COUNT; i++ )
   1141     {
   1142         uint16_t offset2 = g_key_hit[i]<<2;
   1143 #if !defined(RGB_BACKLIGHT_HS60) && !defined(RGB_BACKLIGHT_NK65)
   1144         // stabilizer LEDs use spacebar hits
   1145         if ( i == 36+6 || i == 54+13 || // LC6, LD13
   1146                 ( g_config.use_7u_spacebar && i == 54+14 ) ) // LD14
   1147         {
   1148             offset2 = g_key_hit[36+0]<<2;
   1149         }
   1150 #endif
   1151         offset2 = (offset2<=63) ? (63-offset2) : 0;
   1152 
   1153         HSV hsv = { .h = offset+offset2, .s = 255, .v = g_config.brightness };
   1154         RGB rgb = hsv_to_rgb( hsv );
   1155         backlight_set_color( i, rgb.r, rgb.g, rgb.b );
   1156     }
   1157 }
   1158 
   1159 void backlight_effect_cycle_left_right(void)
   1160 {
   1161     uint8_t offset = ( g_tick << g_config.effect_speed ) & 0xFF;
   1162     HSV hsv = { .h = 0, .s = 255, .v = g_config.brightness };
   1163     RGB rgb;
   1164     Point point;
   1165     for ( int i=0; i<BACKLIGHT_LED_COUNT; i++ )
   1166     {
   1167         uint16_t offset2 = g_key_hit[i]<<2;
   1168 #if !defined(RGB_BACKLIGHT_HS60) && !defined(RGB_BACKLIGHT_NK65)
   1169         // stabilizer LEDs use spacebar hits
   1170         if ( i == 36+6 || i == 54+13 || // LC6, LD13
   1171                 ( g_config.use_7u_spacebar && i == 54+14 ) ) // LD14
   1172         {
   1173             offset2 = g_key_hit[36+0]<<2;
   1174         }
   1175 #endif
   1176         offset2 = (offset2<=63) ? (63-offset2) : 0;
   1177 
   1178         map_led_to_point( i, &point );
   1179         // Relies on hue being 8-bit and wrapping
   1180         hsv.h = point.x + offset + offset2;
   1181         rgb = hsv_to_rgb( hsv );
   1182         backlight_set_color( i, rgb.r, rgb.g, rgb.b );
   1183     }
   1184 }
   1185 
   1186 void backlight_effect_cycle_up_down(void)
   1187 {
   1188     uint8_t offset = ( g_tick << g_config.effect_speed ) & 0xFF;
   1189     HSV hsv = { .h = 0, .s = 255, .v = g_config.brightness };
   1190     RGB rgb;
   1191     Point point;
   1192     for ( int i=0; i<BACKLIGHT_LED_COUNT; i++ )
   1193     {
   1194         uint16_t offset2 = g_key_hit[i]<<2;
   1195 #if !defined(RGB_BACKLIGHT_HS60) && !defined(RGB_BACKLIGHT_NK65)
   1196         // stabilizer LEDs use spacebar hits
   1197         if ( i == 36+6 || i == 54+13 || // LC6, LD13
   1198                 ( g_config.use_7u_spacebar && i == 54+14 ) ) // LD14
   1199         {
   1200             offset2 = g_key_hit[36+0]<<2;
   1201         }
   1202 #endif
   1203         offset2 = (offset2<=63) ? (63-offset2) : 0;
   1204 
   1205         map_led_to_point( i, &point );
   1206         // Relies on hue being 8-bit and wrapping
   1207         hsv.h = point.y + offset + offset2;
   1208         rgb = hsv_to_rgb( hsv );
   1209         backlight_set_color( i, rgb.r, rgb.g, rgb.b );
   1210     }
   1211 }
   1212 
   1213 void backlight_effect_jellybean_raindrops( bool initialize )
   1214 {
   1215     HSV hsv;
   1216     RGB rgb;
   1217 
   1218     // Change one LED every tick
   1219     uint8_t led_to_change = ( g_tick & 0x000 ) == 0 ? rand() % BACKLIGHT_LED_COUNT : 255;
   1220 
   1221     for ( int i=0; i<BACKLIGHT_LED_COUNT; i++ )
   1222     {
   1223         // If initialize, all get set to random colors
   1224         // If not, all but one will stay the same as before.
   1225         if ( initialize || i == led_to_change )
   1226         {
   1227             hsv.h = rand() & 0xFF;
   1228             hsv.s = rand() & 0xFF;
   1229             // Override brightness with global brightness control
   1230             hsv.v = g_config.brightness;;
   1231 
   1232             rgb = hsv_to_rgb( hsv );
   1233             backlight_set_color( i, rgb.r, rgb.g, rgb.b );
   1234         }
   1235     }
   1236 }
   1237 
   1238 void backlight_effect_cycle_radial1(void)
   1239 {
   1240     uint8_t offset = ( g_tick << g_config.effect_speed ) & 0xFF;
   1241     HSV hsv = { .h = 0, .s = 255, .v = g_config.brightness };
   1242     RGB rgb;
   1243     Point point;
   1244     for ( int i=0; i<BACKLIGHT_LED_COUNT; i++ )
   1245     {
   1246         map_led_to_point_polar( i, &point );
   1247         // Relies on hue being 8-bit and wrapping
   1248         hsv.h = point.x + offset;
   1249         hsv.s = point.y;
   1250         rgb = hsv_to_rgb( hsv );
   1251         backlight_set_color( i, rgb.r, rgb.g, rgb.b );
   1252     }
   1253 }
   1254 
   1255 void backlight_effect_cycle_radial2(void)
   1256 {
   1257     uint8_t offset = ( g_tick << g_config.effect_speed ) & 0xFF;
   1258 
   1259     HSV hsv = { .h = 0, .s = g_config.color_1.s, .v = g_config.brightness };
   1260     RGB rgb;
   1261     Point point;
   1262     for ( int i=0; i<BACKLIGHT_LED_COUNT; i++ )
   1263     {
   1264         map_led_to_point_polar( i, &point );
   1265         uint8_t offset2 = offset + point.x;
   1266         if ( offset2 & 0x80 )
   1267         {
   1268             offset2 = ~offset2;
   1269         }
   1270         offset2 = offset2 >> 2;
   1271         hsv.h = g_config.color_1.h + offset2;
   1272         hsv.s = 127 + ( point.y >> 1 );
   1273         rgb = hsv_to_rgb( hsv );
   1274         backlight_set_color( i, rgb.r, rgb.g, rgb.b );
   1275     }
   1276 }
   1277 
   1278 #if defined(RGB_BACKLIGHT_M6_B)
   1279 void backlight_effect_custom_colors(void)
   1280 {
   1281     RGB rgb;
   1282     for ( uint8_t i = 0; i < 6; i++ )
   1283     {
   1284         HSV hsv = { .h = g_config.custom_color[i].h, .s = g_config.custom_color[i].s, .v = g_config.brightness };
   1285         rgb = hsv_to_rgb( hsv );
   1286         uint8_t led;
   1287         map_row_column_to_led( 0, i, &led );
   1288         backlight_set_color( led, rgb.r, rgb.g, rgb.b );
   1289     }
   1290 }
   1291 #endif
   1292 
   1293 void backlight_effect_indicators_set_colors( uint8_t index, HS color )
   1294 {
   1295     HSV hsv = { .h = color.h, .s = color.s, .v = g_config.brightness };
   1296     RGB rgb = hsv_to_rgb( hsv );
   1297     if ( index == 254 )
   1298     {
   1299         backlight_set_color_all( rgb.r, rgb.g, rgb.b );
   1300     }
   1301     else
   1302     {
   1303         backlight_set_color( index, rgb.r, rgb.g, rgb.b );
   1304 
   1305         // If the spacebar LED is the indicator,
   1306         // do the same for the spacebar stabilizers
   1307         if ( index == 36+0 ) // LC0
   1308         {
   1309 #if defined(RGB_BACKLIGHT_ZEAL65)
   1310             backlight_set_color( 36+7, rgb.r, rgb.g, rgb.b ); // LC7
   1311             backlight_set_color( 54+14, rgb.r, rgb.g, rgb.b ); // LD14
   1312 #elif defined(RGB_BACKLIGHT_KOYU)
   1313             backlight_set_color( 36+6, rgb.r, rgb.g, rgb.b ); // LC6
   1314             backlight_set_color( 54+14, rgb.r, rgb.g, rgb.b ); // LD14
   1315 #elif defined(RGB_BACKLIGHT_ZEAL60) || defined(RGB_BACKLIGHT_M60_A)
   1316             backlight_set_color( 36+6, rgb.r, rgb.g, rgb.b ); // LC6
   1317             backlight_set_color( 54+13, rgb.r, rgb.g, rgb.b ); // LD13
   1318             if ( g_config.use_7u_spacebar )
   1319             {
   1320                 backlight_set_color( 54+14, rgb.r, rgb.g, rgb.b ); // LD14
   1321             }
   1322 #endif
   1323         }
   1324     }
   1325 }
   1326 
   1327 // This runs after another backlight effect and replaces
   1328 // colors already set
   1329 void backlight_effect_indicators(void)
   1330 {
   1331     if ( g_config.caps_lock_indicator.index != 255 &&
   1332             ( g_indicator_state & (1<<USB_LED_CAPS_LOCK) ) )
   1333     {
   1334         backlight_effect_indicators_set_colors( g_config.caps_lock_indicator.index, g_config.caps_lock_indicator.color );
   1335     }
   1336 
   1337 #if defined(RGB_BACKLIGHT_NK65)
   1338     if ( g_indicator_state & (1<<USB_LED_CAPS_LOCK) )
   1339     {
   1340         IS31FL3733_set_color( 7+64-1, 0, 255, 0 );
   1341     } else {
   1342         IS31FL3733_set_color( 7+64-1, 0, 0, 0 );
   1343     }
   1344     if ( g_indicator_state & (1<<USB_LED_SCROLL_LOCK) )
   1345     {
   1346         IS31FL3733_set_color( 6+64-1, 255, 0, 255 );
   1347     } else {
   1348         IS31FL3733_set_color( 6+64-1, 0, 0, 0 );
   1349     }
   1350     if ( g_indicator_state & (1<<USB_LED_NUM_LOCK) )
   1351     {
   1352         IS31FL3733_set_color( 6+64-1, 0, 255, 0 );
   1353     } else {
   1354         IS31FL3733_set_color( 6+64-1, 0, 0, 0 );
   1355     }
   1356 #endif
   1357 
   1358     // This if/else if structure allows higher layers to
   1359     // override lower ones. If we set layer 3's indicator
   1360     // to none, then it will NOT show layer 2 or layer 1
   1361     // indicators, even if those layers are on via the
   1362     // MO13/MO23 Fn combo magic.
   1363     //
   1364     // Basically we want to handle the case where layer 3 is
   1365     // still the backlight configuration layer and we don't
   1366     // want "all LEDs" indicators hiding the backlight effect,
   1367     // but still allow end users to do whatever they want.
   1368     if ( IS_LAYER_ON(3) )
   1369     {
   1370         if ( g_config.layer_3_indicator.index != 255 )
   1371         {
   1372             backlight_effect_indicators_set_colors( g_config.layer_3_indicator.index, g_config.layer_3_indicator.color );
   1373         }
   1374     }
   1375     else if ( IS_LAYER_ON(2) )
   1376     {
   1377         if ( g_config.layer_2_indicator.index != 255 )
   1378         {
   1379             backlight_effect_indicators_set_colors( g_config.layer_2_indicator.index, g_config.layer_2_indicator.color );
   1380         }
   1381     }
   1382     else if ( IS_LAYER_ON(1) )
   1383     {
   1384         if ( g_config.layer_1_indicator.index != 255 )
   1385         {
   1386             backlight_effect_indicators_set_colors( g_config.layer_1_indicator.index, g_config.layer_1_indicator.color );
   1387         }
   1388     }
   1389 }
   1390 
   1391 #if !defined(RGB_BACKLIGHT_HS60) && !defined(RGB_BACKLIGHT_NK65)
   1392 ISR(TIMER3_COMPA_vect)
   1393 #else //STM32 interrupt
   1394 static void gpt_backlight_timer_task(GPTDriver *gptp)
   1395 #endif
   1396 {
   1397     // delay 1 second before driving LEDs or doing anything else
   1398     static uint8_t startup_tick = 0;
   1399     if ( startup_tick < 20 )
   1400     {
   1401         startup_tick++;
   1402         return;
   1403     }
   1404 
   1405     g_tick++;
   1406 
   1407     if ( g_any_key_hit < 0xFFFFFFFF )
   1408     {
   1409         g_any_key_hit++;
   1410     }
   1411 
   1412     for ( int led = 0; led < BACKLIGHT_LED_COUNT; led++ )
   1413     {
   1414         if ( g_key_hit[led] < 255 )
   1415         {
   1416             g_key_hit[led]++;
   1417         }
   1418     }
   1419 
   1420     // Factory default magic value
   1421     if ( g_config.effect == 255 )
   1422     {
   1423         backlight_effect_rgb_test();
   1424         return;
   1425     }
   1426 
   1427     // Ideally we would also stop sending zeros to the LED driver PWM buffers
   1428     // while suspended and just do a software shutdown. This is a cheap hack for now.
   1429     bool suspend_backlight = ((g_suspend_state && g_config.disable_when_usb_suspended) ||
   1430             (g_config.disable_after_timeout > 0 && g_any_key_hit > g_config.disable_after_timeout * 60 * 20));
   1431     uint8_t effect = suspend_backlight ? 0 : g_config.effect;
   1432 
   1433     // Keep track of the effect used last time,
   1434     // detect change in effect, so each effect can
   1435     // have an optional initialization.
   1436     static uint8_t effect_last = 255;
   1437     bool initialize = effect != effect_last;
   1438     effect_last = effect;
   1439 
   1440     // this gets ticked at 20 Hz.
   1441     // each effect can opt to do calculations
   1442     // and/or request PWM buffer updates.
   1443     switch ( effect )
   1444     {
   1445         case 0:
   1446             backlight_effect_all_off();
   1447             break;
   1448         case 1:
   1449             backlight_effect_solid_color();
   1450             break;
   1451         case 2:
   1452 #if defined(RGB_BACKLIGHT_M6_B)
   1453             backlight_effect_custom_colors();
   1454 #else
   1455             backlight_effect_alphas_mods();
   1456 #endif
   1457             break;
   1458         case 3:
   1459             backlight_effect_gradient_up_down();
   1460             break;
   1461         case 4:
   1462             backlight_effect_raindrops( initialize );
   1463             break;
   1464         case 5:
   1465             backlight_effect_cycle_all();
   1466             break;
   1467         case 6:
   1468             backlight_effect_cycle_left_right();
   1469             break;
   1470         case 7:
   1471             backlight_effect_cycle_up_down();
   1472             break;
   1473         case 8:
   1474             backlight_effect_jellybean_raindrops( initialize );
   1475             break;
   1476         case 9:
   1477             backlight_effect_cycle_radial1();
   1478             break;
   1479         case 10:
   1480             backlight_effect_cycle_radial2();
   1481             break;
   1482         default:
   1483             backlight_effect_all_off();
   1484             break;
   1485     }
   1486 
   1487     if ( ! suspend_backlight )
   1488     {
   1489 #if !defined(RGB_BACKLIGHT_M6_B)
   1490         backlight_effect_indicators();
   1491 #endif
   1492     }
   1493 }
   1494 
   1495 void backlight_set_indicator_index( uint8_t *index, uint8_t row, uint8_t column )
   1496 {
   1497     if ( row >= MATRIX_ROWS )
   1498     {
   1499         // Special value, 255=none, 254=all
   1500         *index = row;
   1501     }
   1502     else
   1503     {
   1504         map_row_column_to_led( row, column, index );
   1505     }
   1506 }
   1507 
   1508 void backlight_get_indicator_row_col( uint8_t index, uint8_t *row, uint8_t *column )
   1509 {
   1510     if ( index == 255 || index == 254 )
   1511     {
   1512         // Special value, 255=none, 254=all
   1513         *row = index;
   1514         *column = 0;
   1515         return;
   1516     }
   1517     for ( uint8_t r = 0; r < MATRIX_ROWS; r++ )
   1518     {
   1519         for ( uint8_t c = 0; c < MATRIX_COLS; c++ )
   1520         {
   1521             uint8_t i = 255;
   1522             map_row_column_to_led( r, c, &i );
   1523             if ( i == index )
   1524             {
   1525                 *row = r;
   1526                 *column = c;
   1527                 return;
   1528             }
   1529         }
   1530     }
   1531 }
   1532 
   1533 // Some helpers for setting/getting HSV
   1534 void _set_color( HS *color, uint8_t *data )
   1535 {
   1536     color->h = data[0];
   1537     color->s = data[1];
   1538 }
   1539 
   1540 void _get_color( HS *color, uint8_t *data )
   1541 {
   1542     data[0] = color->h;
   1543     data[1] = color->s;
   1544 }
   1545 
   1546 void backlight_config_set_value( uint8_t *data )
   1547 {
   1548     bool reinitialize = false;
   1549     uint8_t *value_id = &(data[0]);
   1550     uint8_t *value_data = &(data[1]);
   1551     switch ( *value_id )
   1552     {
   1553 #if defined (RGB_BACKLIGHT_ZEAL60) || defined(RGB_BACKLIGHT_ZEAL65)
   1554         case id_use_split_backspace:
   1555         {
   1556             g_config.use_split_backspace = (bool)*value_data;
   1557             reinitialize = true;
   1558             break;
   1559         }
   1560 #endif
   1561 #if defined (RGB_BACKLIGHT_ZEAL60)
   1562         case id_use_split_left_shift:
   1563         {
   1564             g_config.use_split_left_shift = (bool)*value_data;
   1565             reinitialize = true;
   1566             break;
   1567         }
   1568         case id_use_split_right_shift:
   1569         {
   1570             g_config.use_split_right_shift = (bool)*value_data;
   1571             reinitialize = true;
   1572             break;
   1573         }
   1574         case id_use_7u_spacebar:
   1575         {
   1576             g_config.use_7u_spacebar = (bool)*value_data;
   1577             reinitialize = true;
   1578             break;
   1579         }
   1580         case id_use_iso_enter:
   1581         {
   1582             g_config.use_iso_enter = (bool)*value_data;
   1583             reinitialize = true;
   1584             break;
   1585         }
   1586         case id_disable_hhkb_blocker_leds:
   1587         {
   1588             g_config.disable_hhkb_blocker_leds = (bool)*value_data;
   1589             reinitialize = true;
   1590             break;
   1591         }
   1592 #endif
   1593         case id_disable_when_usb_suspended:
   1594         {
   1595             g_config.disable_when_usb_suspended = (bool)*value_data;
   1596             break;
   1597         }
   1598         case id_disable_after_timeout:
   1599         {
   1600             g_config.disable_after_timeout = *value_data;
   1601             break;
   1602         }
   1603         case id_brightness:
   1604         {
   1605             g_config.brightness = *value_data;
   1606             break;
   1607         }
   1608         case id_effect:
   1609         {
   1610             g_config.effect = *value_data;
   1611             break;
   1612         }
   1613         case id_effect_speed:
   1614         {
   1615             g_config.effect_speed = *value_data;
   1616             break;
   1617         }
   1618         case id_color_1:
   1619         {
   1620             _set_color( &(g_config.color_1), value_data );
   1621             break;
   1622         }
   1623         case id_color_2:
   1624         {
   1625             _set_color( &(g_config.color_2), value_data );
   1626             break;
   1627         }
   1628         case id_caps_lock_indicator_color:
   1629         {
   1630             _set_color( &(g_config.caps_lock_indicator.color), value_data );
   1631             break;
   1632         }
   1633         case id_caps_lock_indicator_row_col:
   1634         {
   1635             backlight_set_indicator_index( &(g_config.caps_lock_indicator.index), value_data[0], value_data[1] );
   1636             break;
   1637         }
   1638         case id_layer_1_indicator_color:
   1639         {
   1640             _set_color( &(g_config.layer_1_indicator.color), value_data );
   1641             break;
   1642         }
   1643         case id_layer_1_indicator_row_col:
   1644         {
   1645             backlight_set_indicator_index( &(g_config.layer_1_indicator.index), value_data[0], value_data[1] );
   1646             break;
   1647         }
   1648         case id_layer_2_indicator_color:
   1649         {
   1650             _set_color( &(g_config.layer_2_indicator.color), value_data );
   1651             break;
   1652         }
   1653         case id_layer_2_indicator_row_col:
   1654         {
   1655             backlight_set_indicator_index( &(g_config.layer_2_indicator.index), value_data[0], value_data[1] );
   1656             break;
   1657         }
   1658         case id_layer_3_indicator_color:
   1659         {
   1660             _set_color( &(g_config.layer_3_indicator.color), value_data );
   1661             break;
   1662         }
   1663         case id_layer_3_indicator_row_col:
   1664         {
   1665             backlight_set_indicator_index( &(g_config.layer_3_indicator.index), value_data[0], value_data[1] );
   1666             break;
   1667         }
   1668         case id_alphas_mods:
   1669         {
   1670             for ( int i=0; i<5; i++ )
   1671             {
   1672                 g_config.alphas_mods[i] = ( *(value_data+i*2) << 8 ) | ( *(value_data+i*2+1) );
   1673             }
   1674         }
   1675 #if defined(RGB_BACKLIGHT_M6_B)
   1676         case id_custom_color:
   1677         {
   1678             uint8_t index = value_data[0];
   1679             if ( index >= 0 && index <= 6 )
   1680             {
   1681                 _set_color( &(g_config.custom_color[index]), &(value_data[1]) );
   1682             }
   1683         }
   1684 #endif
   1685     }
   1686 
   1687     if ( reinitialize )
   1688     {
   1689         backlight_init_drivers();
   1690     }
   1691 }
   1692 
   1693 void backlight_config_get_value( uint8_t *data )
   1694 {
   1695     uint8_t *value_id = &(data[0]);
   1696     uint8_t *value_data = &(data[1]);
   1697     switch ( *value_id )
   1698     {
   1699         case id_use_split_backspace:
   1700         {
   1701             *value_data = ( g_config.use_split_backspace ? 1 : 0 );
   1702             break;
   1703         }
   1704         case id_use_split_left_shift:
   1705         {
   1706             *value_data = ( g_config.use_split_left_shift ? 1 : 0 );
   1707             break;
   1708         }
   1709         case id_use_split_right_shift:
   1710         {
   1711             *value_data = ( g_config.use_split_right_shift ? 1 : 0 );
   1712             break;
   1713         }
   1714         case id_use_7u_spacebar:
   1715         {
   1716             *value_data = ( g_config.use_7u_spacebar ? 1 : 0 );
   1717             break;
   1718         }
   1719         case id_use_iso_enter:
   1720         {
   1721             *value_data = ( g_config.use_iso_enter ? 1 : 0 );
   1722             break;
   1723         }
   1724         case id_disable_when_usb_suspended:
   1725         {
   1726             *value_data = ( g_config.disable_when_usb_suspended ? 1 : 0 );
   1727             break;
   1728         }
   1729         case id_disable_hhkb_blocker_leds:
   1730         {
   1731             *value_data = ( g_config.disable_hhkb_blocker_leds ? 1 : 0 );
   1732             break;
   1733         }
   1734         case id_disable_after_timeout:
   1735         {
   1736             *value_data = g_config.disable_after_timeout;
   1737             break;
   1738         }
   1739         case id_brightness:
   1740         {
   1741             *value_data = g_config.brightness;
   1742             break;
   1743         }
   1744         case id_effect:
   1745         {
   1746             *value_data = g_config.effect;
   1747             break;
   1748         }
   1749         case id_effect_speed:
   1750         {
   1751             *value_data = g_config.effect_speed;
   1752             break;
   1753         }
   1754         case id_color_1:
   1755         {
   1756             _get_color( &(g_config.color_1), value_data );
   1757             break;
   1758         }
   1759         case id_color_2:
   1760         {
   1761             _get_color( &(g_config.color_2), value_data );
   1762             break;
   1763         }
   1764         case id_caps_lock_indicator_color:
   1765         {
   1766             _get_color( &(g_config.caps_lock_indicator.color), value_data );
   1767             break;
   1768         }
   1769         case id_caps_lock_indicator_row_col:
   1770         {
   1771             backlight_get_indicator_row_col( g_config.caps_lock_indicator.index, &(value_data[0]), &(value_data[1]) );
   1772             break;
   1773         }
   1774         case id_layer_1_indicator_color:
   1775         {
   1776             _get_color( &(g_config.layer_1_indicator.color), value_data );
   1777             break;
   1778         }
   1779         case id_layer_1_indicator_row_col:
   1780         {
   1781             backlight_get_indicator_row_col( g_config.layer_1_indicator.index, &(value_data[0]), &(value_data[1]) );
   1782             break;
   1783         }
   1784         case id_layer_2_indicator_color:
   1785         {
   1786             _get_color( &(g_config.layer_2_indicator.color), value_data );
   1787             break;
   1788         }
   1789         case id_layer_2_indicator_row_col:
   1790         {
   1791             backlight_get_indicator_row_col( g_config.layer_2_indicator.index, &(value_data[0]), &(value_data[1]) );
   1792             break;
   1793         }
   1794         case id_layer_3_indicator_color:
   1795         {
   1796             _get_color( &(g_config.layer_3_indicator.color), value_data );
   1797             break;
   1798         }
   1799         case id_layer_3_indicator_row_col:
   1800         {
   1801             backlight_get_indicator_row_col( g_config.layer_3_indicator.index, &(value_data[0]), &(value_data[1]) );
   1802             break;
   1803         }
   1804         case id_alphas_mods:
   1805         {
   1806             for ( int i=0; i<5; i++ )
   1807             {
   1808                 *(value_data+i*2) = g_config.alphas_mods[i] >> 8;
   1809                 *(value_data+i*2+1) = g_config.alphas_mods[i] & 0xFF;
   1810             }
   1811         }
   1812 #if defined(RGB_BACKLIGHT_M6_B)
   1813         case id_custom_color:
   1814         {
   1815             uint8_t index = value_data[0];
   1816             if ( index >= 0 && index <= 6 )
   1817             {
   1818                 _get_color( &(g_config.custom_color[index]), &(value_data[1]) );
   1819             }
   1820         }
   1821 #endif
   1822     }
   1823 }
   1824 
   1825 void backlight_config_set_alphas_mods( uint16_t *alphas_mods )
   1826 {
   1827     for ( int i=0; i<5; i++ )
   1828     {
   1829         g_config.alphas_mods[i] = alphas_mods[i];
   1830     }
   1831 
   1832     backlight_config_save();
   1833 }
   1834 
   1835 void backlight_config_load(void)
   1836 {
   1837     eeprom_read_block( &g_config, ((void*)RGB_BACKLIGHT_CONFIG_EEPROM_ADDR), sizeof(backlight_config) );
   1838 }
   1839 
   1840 void backlight_config_save(void)
   1841 {
   1842     eeprom_update_block( &g_config, ((void*)RGB_BACKLIGHT_CONFIG_EEPROM_ADDR), sizeof(backlight_config) );
   1843 }
   1844 
   1845 void backlight_init_drivers(void)
   1846 {
   1847     // Initialize I2C
   1848     i2c_init();
   1849 
   1850 #if defined(RGB_BACKLIGHT_M6_B)
   1851     IS31FL3218_init();
   1852 #elif defined(RGB_BACKLIGHT_HS60)
   1853     IS31FL3733_init( ISSI_ADDR_1, 0 );
   1854 
   1855     for ( int index = 0; index < DRIVER_LED_TOTAL; index++ )
   1856     {
   1857 #if defined(HS60_ANSI)
   1858         bool enabled = !( ( index == 48-1 ) || //LA48
   1859                           ( index == 51-1 ) || //LA51
   1860                           ( index == 61-1 ) ); //LA61
   1861 #elif defined(HS60_HHKB)
   1862         bool enabled = !( ( index == 61-1 ) || //LA61
   1863                           ( index == 62-1 ) ); //LA62
   1864 #else //HS60_ISO
   1865         bool enabled = !( ( index == 51-1 ) || //LA51
   1866                           ( index == 61-1 ) ); //LA61
   1867 #endif
   1868                 // This only caches it for later
   1869         IS31FL3733_set_led_control_register( index, enabled, enabled, enabled );
   1870     }
   1871     // This actually updates the LED drivers
   1872     IS31FL3733_update_led_control_registers( ISSI_ADDR_1, 0 );
   1873 #elif defined(RGB_BACKLIGHT_NK65)
   1874     IS31FL3733_init( ISSI_ADDR_1, 0 );
   1875     IS31FL3733_init( ISSI_ADDR_2, 0 );
   1876 
   1877     for ( int index = 0; index < DRIVER_LED_TOTAL; index++ )
   1878     {
   1879         bool enabled = !( ( index == 61-1 )   || //LA61
   1880                           ( index > 6+64-1 ) ); //LB7-LB64
   1881         // This only caches it for later
   1882         IS31FL3733_set_led_control_register( index, enabled, enabled, enabled );
   1883     }
   1884     IS31FL3733_set_led_control_register( 7+64-1, 0, 1, 0 ); //Enable LB7 green enable for indicators
   1885     // This actually updates the LED drivers
   1886     IS31FL3733_update_led_control_registers( ISSI_ADDR_1, 0 );
   1887     IS31FL3733_update_led_control_registers( ISSI_ADDR_2, 1 );
   1888 #else
   1889     IS31FL3731_init( ISSI_ADDR_1 );
   1890     IS31FL3731_init( ISSI_ADDR_2 );
   1891 
   1892     for ( int index = 0; index < DRIVER_LED_TOTAL; index++ )
   1893     {
   1894         // OR the possible "disabled" cases together, then NOT the result to get the enabled state
   1895         // LC6 LD13 not present on Zeal65
   1896 #if defined(RGB_BACKLIGHT_ZEAL65)
   1897         bool enabled = !( ( index == 18+5 && !g_config.use_split_backspace ) || // LB5
   1898                           ( index == 36+6 ) || // LC6
   1899                           ( index == 54+13 ) ); // LD13
   1900 #elif defined(RGB_BACKLIGHT_KOYU)
   1901         bool enabled = !( ( index == 36+15 ) || // LC15
   1902                           ( index == 54+13 ) || // LD13
   1903                           ( index == 54+17 ) ); // LD17
   1904 #elif defined(RGB_BACKLIGHT_M60_A)
   1905         bool enabled = !(
   1906         // LB6 LB7 LB8 LB15 LB16 LB17 not present on M60-A
   1907                           ( index == 18+6 ) || // LB6
   1908                           ( index == 18+7 ) || // LB7
   1909                           ( index == 18+8 ) || // LB8
   1910                           ( index == 18+15 ) || // LB15
   1911                           ( index == 18+16 ) || // LB16
   1912                           ( index == 18+17 ) || // LB17
   1913         // HHKB blockers (LC17, LD17) and ISO extra keys (LC15,LD13) not present on M60-A
   1914                           ( index == 36+17 ) || // LC17
   1915                           ( index == 54+17 ) || // LD17
   1916                           ( index == 36+15 ) || // LC15
   1917                           ( index == 54+13 ) ); // LD13
   1918 #elif defined(RGB_BACKLIGHT_ZEAL60)
   1919         // LB6 LB7 LB8 LB15 LB16 LB17 not present on Zeal60
   1920         bool enabled = !( ( index == 18+5 && !g_config.use_split_backspace ) || // LB5
   1921                           ( index == 36+15 && !g_config.use_split_left_shift ) || // LC15
   1922                           ( index == 54+8 && !g_config.use_split_right_shift ) || // LD8
   1923                           ( index == 54+13 && g_config.use_7u_spacebar ) || // LD13
   1924                           ( index == 36+17 && g_config.disable_hhkb_blocker_leds ) || // LC17
   1925                           ( index == 54+17 && g_config.disable_hhkb_blocker_leds ) ||  // LD17
   1926                           ( index == 18+6 ) || // LB6
   1927                           ( index == 18+7 ) || // LB7
   1928                           ( index == 18+8 ) || // LB8
   1929                           ( index == 18+15 ) || // LB15
   1930                           ( index == 18+16 ) || // LB16
   1931                           ( index == 18+17 ) ); // LB17
   1932 #endif
   1933         // This only caches it for later
   1934         IS31FL3731_set_led_control_register( index, enabled, enabled, enabled );
   1935     }
   1936     // This actually updates the LED drivers
   1937     IS31FL3731_update_led_control_registers( ISSI_ADDR_1, ISSI_ADDR_2 );
   1938 #endif // !defined(RGB_BACKLIGHT_M6_B)
   1939 
   1940     // TODO: put the 1 second startup delay here?
   1941 
   1942     // clear the key hits
   1943     for ( int led=0; led<BACKLIGHT_LED_COUNT; led++ )
   1944     {
   1945         g_key_hit[led] = 255;
   1946     }
   1947 }
   1948 
   1949 bool process_record_backlight(uint16_t keycode, keyrecord_t *record)
   1950 {
   1951     // Record keypresses for backlight effects
   1952     if ( record->event.pressed )
   1953     {
   1954         backlight_set_key_hit( record->event.key.row, record->event.key.col );
   1955     }
   1956 
   1957     switch(keycode)
   1958     {
   1959         case BR_INC:
   1960             if (record->event.pressed)
   1961             {
   1962                 backlight_brightness_increase();
   1963             }
   1964             return false;
   1965             break;
   1966         case BR_DEC:
   1967             if (record->event.pressed)
   1968             {
   1969                 backlight_brightness_decrease();
   1970             }
   1971             return false;
   1972             break;
   1973         case EF_INC:
   1974             if (record->event.pressed)
   1975             {
   1976                 backlight_effect_increase();
   1977             }
   1978             return false;
   1979             break;
   1980         case EF_DEC:
   1981             if (record->event.pressed)
   1982             {
   1983                 backlight_effect_decrease();
   1984             }
   1985             return false;
   1986             break;
   1987         case ES_INC:
   1988             if (record->event.pressed)
   1989             {
   1990                 backlight_effect_speed_increase();
   1991             }
   1992             return false;
   1993             break;
   1994         case ES_DEC:
   1995             if (record->event.pressed)
   1996             {
   1997                 backlight_effect_speed_decrease();
   1998             }
   1999             return false;
   2000             break;
   2001         case H1_INC:
   2002             if (record->event.pressed)
   2003             {
   2004                 backlight_color_1_hue_increase();
   2005             }
   2006             return false;
   2007             break;
   2008         case H1_DEC:
   2009             if (record->event.pressed)
   2010             {
   2011                 backlight_color_1_hue_decrease();
   2012             }
   2013             return false;
   2014             break;
   2015         case S1_INC:
   2016             if (record->event.pressed)
   2017             {
   2018                 backlight_color_1_sat_increase();
   2019             }
   2020             return false;
   2021             break;
   2022         case S1_DEC:
   2023             if (record->event.pressed)
   2024             {
   2025                 backlight_color_1_sat_decrease();
   2026                 break;
   2027             }
   2028             return false;
   2029             break;
   2030         case H2_INC:
   2031             if (record->event.pressed)
   2032             {
   2033                 backlight_color_2_hue_increase();
   2034             }
   2035             return false;
   2036             break;
   2037         case H2_DEC:
   2038             if (record->event.pressed)
   2039             {
   2040                 backlight_color_2_hue_decrease();
   2041             }
   2042             return false;
   2043             break;
   2044         case S2_INC:
   2045             if (record->event.pressed)
   2046             {
   2047                 backlight_color_2_sat_increase();
   2048             }
   2049             return false;
   2050             break;
   2051         case S2_DEC:
   2052             if (record->event.pressed)
   2053             {
   2054                 backlight_color_2_sat_decrease();
   2055                 break;
   2056             }
   2057             return false;
   2058             break;
   2059     }
   2060 
   2061     return true;
   2062 }
   2063 
   2064 // Deals with the messy details of incrementing an integer
   2065 uint8_t increment( uint8_t value, uint8_t step, uint8_t min, uint8_t max )
   2066 {
   2067     int16_t new_value = value;
   2068     new_value += step;
   2069     return MIN( MAX( new_value, min ), max );
   2070 }
   2071 
   2072 uint8_t decrement( uint8_t value, uint8_t step, uint8_t min, uint8_t max )
   2073 {
   2074     int16_t new_value = value;
   2075     new_value -= step;
   2076     return MIN( MAX( new_value, min ), max );
   2077 }
   2078 
   2079 void backlight_effect_increase(void)
   2080 {
   2081     g_config.effect = increment( g_config.effect, 1, 0, BACKLIGHT_EFFECT_MAX );
   2082     backlight_config_save();
   2083 }
   2084 
   2085 void backlight_effect_decrease(void)
   2086 {
   2087     g_config.effect = decrement( g_config.effect, 1, 0, BACKLIGHT_EFFECT_MAX );
   2088     backlight_config_save();
   2089 }
   2090 
   2091 void backlight_effect_speed_increase(void)
   2092 {
   2093     g_config.effect_speed = increment( g_config.effect_speed, 1, 0, 3 );
   2094     backlight_config_save();
   2095 }
   2096 
   2097 void backlight_effect_speed_decrease(void)
   2098 {
   2099     g_config.effect_speed = decrement( g_config.effect_speed, 1, 0, 3 );
   2100     backlight_config_save();
   2101 }
   2102 
   2103 void backlight_brightness_increase(void)
   2104 {
   2105     g_config.brightness = increment( g_config.brightness, 8, 0, 255 );
   2106     backlight_config_save();
   2107 }
   2108 
   2109 void backlight_brightness_decrease(void)
   2110 {
   2111     g_config.brightness = decrement( g_config.brightness, 8, 0, 255 );
   2112     backlight_config_save();
   2113 }
   2114 
   2115 void backlight_color_1_hue_increase(void)
   2116 {
   2117     g_config.color_1.h = increment( g_config.color_1.h, 8, 0, 255 );
   2118     backlight_config_save();
   2119 }
   2120 
   2121 void backlight_color_1_hue_decrease(void)
   2122 {
   2123     g_config.color_1.h = decrement( g_config.color_1.h, 8, 0, 255 );
   2124     backlight_config_save();
   2125 }
   2126 
   2127 void backlight_color_1_sat_increase(void)
   2128 {
   2129     g_config.color_1.s = increment( g_config.color_1.s, 8, 0, 255 );
   2130     backlight_config_save();
   2131 }
   2132 
   2133 void backlight_color_1_sat_decrease(void)
   2134 {
   2135     g_config.color_1.s = decrement( g_config.color_1.s, 8, 0, 255 );
   2136     backlight_config_save();
   2137 }
   2138 
   2139 void backlight_color_2_hue_increase(void)
   2140 {
   2141     g_config.color_2.h = increment( g_config.color_2.h, 8, 0, 255 );
   2142     backlight_config_save();
   2143 }
   2144 
   2145 void backlight_color_2_hue_decrease(void)
   2146 {
   2147     g_config.color_2.h = decrement( g_config.color_2.h, 8, 0, 255 );
   2148     backlight_config_save();
   2149 }
   2150 
   2151 void backlight_color_2_sat_increase(void)
   2152 {
   2153     g_config.color_2.s = increment( g_config.color_2.s, 8, 0, 255 );
   2154     backlight_config_save();
   2155 }
   2156 
   2157 void backlight_color_2_sat_decrease(void)
   2158 {
   2159     g_config.color_2.s = decrement( g_config.color_2.s, 8, 0, 255 );
   2160     backlight_config_save();
   2161 }
   2162 
   2163 #if defined(RGB_DEBUGGING_ONLY)
   2164 void backlight_test_led( uint8_t index, bool red, bool green, bool blue )
   2165 {
   2166     for ( int i=0; i<BACKLIGHT_LED_COUNT; i++ )
   2167     {
   2168         if ( i == index )
   2169         {
   2170             IS31FL3731_set_led_control_register( i, red, green, blue );
   2171         }
   2172         else
   2173         {
   2174             IS31FL3731_set_led_control_register( i, false, false, false );
   2175         }
   2176     }
   2177 }
   2178 
   2179 void backlight_debug_led( bool state )
   2180 {
   2181     if (state)
   2182     {
   2183         // Output high.
   2184         DDRE |= (1<<6);
   2185         PORTE |= (1<<6);
   2186     }
   2187     else
   2188     {
   2189         // Output low.
   2190         DDRE &= ~(1<<6);
   2191         PORTE &= ~(1<<6);
   2192     }
   2193 }
   2194 #endif // defined(RGB_DEBUGGING_ONLY)
   2195 
   2196 #endif // BACKLIGHT_ENABLED