[Keyboard] Adds Gray Studio HB85 Initial Support (qmk#5311)

* Gray Studio HB85 Initial Support

* Fixed README image

* Updated README

* Disabled Bootmagic and Console for HB85

* Fixed Numpad 4 matrix place

* Fixes board crashing with RGB enabled

* Moved HB85 files to gray_studio folder

* Uses old i2c library since this version makes RGB underglow work

* Improved default keymap with underglow control layer

* Removes obsolete program and uses generic script instead

As per zvecr feedback

* Uses GPIO Functions to initialise and set RGB underglow PINS

keyboards/gray_studio/hb85/config.h

@@ -0,0 +1,39 @@
+/*
+Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#define VENDOR_ID       0x20A0
+#define PRODUCT_ID      0x422F
+// TODO: share these strings with usbconfig.h
+// Edit usbconfig.h to change these.
+#define MANUFACTURER    Gray Studio
+#define PRODUCT         HB85
+
+/* matrix size */
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 15
+
+#define MATRIX_ROW_PINS { B0, B1, B2, B3, B4, B5, B6, B7 }
+#define MATRIX_COL_PINS { A0, A1, A2, A3, A4, A5, A6, A7, C7, C6, C5, C4, C3, C2, D7 }
+#define DIODE_DIRECTION COL2ROW
+
+#define RGBLED_NUM 5
+#define RGBLIGHT_ANIMATIONS
+
+#define NO_UART 1
+#define BOOTLOADHID_BOOTLOADER 1

keyboards/gray_studio/hb85/hb85.c

@@ -0,0 +1,74 @@
+/*
+Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <string.h>
+
+#include "rgblight.h"
+
+#include "i2c.h"
+#include "quantum.h"
+
+#ifdef RGBLIGHT_ENABLE
+extern rgblight_config_t rgblight_config;
+
+void rgblight_set(void) {
+    if (!rgblight_config.enable) {
+        for (uint8_t i = 0; i < RGBLED_NUM; i++) {
+            led[i].r = 0;
+            led[i].g = 0;
+            led[i].b = 0;
+        }
+    }
+
+    i2c_init();
+    i2c_send(0xb0, (uint8_t*)led, 3 * RGBLED_NUM);
+}
+#endif
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+void backlight_init_ports(void) {
+    // initialize pins D0, D1, D4 and D6 as output
+    setPinOutput(D0);
+    setPinOutput(D1);
+    setPinOutput(D4);
+    setPinOutput(D6);
+
+    // turn RGB LEDs on
+    writePinHigh(D0);
+    writePinHigh(D1);
+    writePinHigh(D4);
+    writePinHigh(D6);
+}
+
+void backlight_set(uint8_t level) {
+	if (level == 0) {
+        // turn RGB LEDs off
+        writePinLow(D0);
+        writePinLow(D1);
+        writePinLow(D4);
+        writePinLow(D6);
+	} else {
+        // turn RGB LEDs on
+        writePinHigh(D0);
+        writePinHigh(D1);
+        writePinHigh(D4);
+        writePinHigh(D6);
+	}
+}

keyboards/gray_studio/hb85/hb85.h

@@ -0,0 +1,48 @@
+/*
+Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "quantum.h"
+
+#define LAYOUT( \
+         K12,    K11, K10, K00, K01,  K02, K03, K04, K05,  K06, K07, K08, K09,  K13,            \
+  K28, K27, K26, K25, K24, K14, K15, K16, K17, K18, K19, K20, K21, K22, K23, K77, K76, K75,     \
+  K43,   K42, K41, K40, K39, K29, K30, K31, K32, K33, K34, K35, K36,    K37, K38, K74, K73,     \
+  K57,    K56, K55, K54, K53, K44, K45, K46, K47, K48, K49, K50,        K51, K52, K88, K87,     \
+  K72, K71, K70, K69, K68, K58, K59, K60, K61, K62, K63, K66,      K64, K65, K67, K90, K89,     \
+        K86, K85,                  K78,                 K79, K80,  K81, K82, K83, K84, K91      \
+) \
+{ \
+  { K00  , K01  , K02  , K03  , K04  , K05  , K06  , K07  , K08  , K09  , K10  , K11  , K12  , KC_NO, K13   }, \
+  { K14  , K15  , K16  , K17  , K18  , K19  , K20  , K21  , K22  , K23  , K24  , K25  , K26  , K27  , K28   }, \
+  { K29  , K30  , K31  , K32  , K33  , K34  , K35  , K36  , K37  , K38  , K39  , K40  , K41  , K42  , K43   }, \
+  { K44  , K45  , K46  , K47  , K48  , K49  , K50  , K51  , KC_NO, K52  , K53  , K54  , K55  , K56  , K57   }, \
+  { K58  , K59  , K60  , K61  , K62  , K63  , K64  , K65  , K66  , K67  , K68  , K69  , K70  , K71  , K72   }, \
+  { KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, K73  , K74  , K75  , K76  , K77  , KC_NO, KC_NO, KC_NO, KC_NO, KC_NO }, \
+  { KC_NO, K78  , KC_NO, KC_NO, K79  , K80  , K81  , K82  , K83  , K84  , KC_NO, KC_NO, K85  , K86  , KC_NO }, \
+  { KC_NO, KC_NO, KC_NO, KC_NO, KC_NO, K87  , K88  , K89  , K90  , K91  , KC_NO, KC_NO, KC_NO, KC_NO, KC_NO }  \
+}
+
+//  F3     F4     F5     F6     F7     F8     F9     F10    F11    F12    F2     F1     ESC           FN
+//  5      6      7      8      9      0      -      =      BS     BS     4      3      2      1      ~
+//  T      Y      U      I      O      P      [      ]      |      PAD7   R      E      W      Q      Tab
+//  G      H      J      K      L      ;      '      ENTR          PAD4   F      D      S      A      CAPS
+//  V      B      N      M      ,      .      RSFT   UP     /      PAD1   C      X      Z      EUR2   LSFT
+//                                     PAD9   PAD8   PAD-   PAD*   PAD/
+//         SPC                  RALT   RCTL   LEFT   DOWN   RGHT   PAD0                 LALT   LGUI
+//                                     PAD6   PAD5   PAD3   PAD2   PAD.

keyboards/gray_studio/hb85/i2c.c

@@ -0,0 +1,106 @@
+/*
+Copyright 2016 Luiz Ribeiro <luizribeiro@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+// Please do not modify this file 
+
+#include <avr/io.h>
+#include <util/twi.h>
+
+#include "i2c.h"
+
+void i2c_set_bitrate(uint16_t bitrate_khz) {
+    uint8_t bitrate_div = ((F_CPU / 1000l) / bitrate_khz);
+    if (bitrate_div >= 16) {
+        bitrate_div = (bitrate_div - 16) / 2;
+    }
+    TWBR = bitrate_div;
+}
+
+void i2c_init(void) {
+    // set pull-up resistors on I2C bus pins
+    PORTC |= 0b11;
+
+    i2c_set_bitrate(400);
+
+    // enable TWI (two-wire interface)
+    TWCR |= (1 << TWEN);
+
+    // enable TWI interrupt and slave address ACK
+    TWCR |= (1 << TWIE);
+    TWCR |= (1 << TWEA);
+}
+
+uint8_t i2c_start(uint8_t address) {
+    // reset TWI control register
+    TWCR = 0;
+
+    // begin transmission and wait for it to end
+    TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN);
+    while (!(TWCR & (1<<TWINT)));
+
+    // check if the start condition was successfully transmitted
+    if ((TWSR & 0xF8) != TW_START) {
+        return 1;
+    }
+
+    // transmit address and wait
+    TWDR = address;
+    TWCR = (1<<TWINT) | (1<<TWEN);
+    while (!(TWCR & (1<<TWINT)));
+
+    // check if the device has acknowledged the READ / WRITE mode
+    uint8_t twst = TW_STATUS & 0xF8;
+    if ((twst != TW_MT_SLA_ACK) && (twst != TW_MR_SLA_ACK)) {
+        return 1;
+    }
+
+    return 0;
+}
+
+void i2c_stop(void) {
+    TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
+}
+
+uint8_t i2c_write(uint8_t data) {
+    TWDR = data;
+
+    // transmit data and wait
+    TWCR = (1<<TWINT) | (1<<TWEN);
+    while (!(TWCR & (1<<TWINT)));
+
+    if ((TWSR & 0xF8) != TW_MT_DATA_ACK) {
+        return 1;
+    }
+
+    return 0;
+}
+
+uint8_t i2c_send(uint8_t address, uint8_t *data, uint16_t length) {
+    if (i2c_start(address)) {
+        return 1;
+    }
+
+    for (uint16_t i = 0; i < length; i++) {
+        if (i2c_write(data[i])) {
+            return 1;
+        }
+    }
+
+    i2c_stop();
+
+    return 0;
+}

keyboards/gray_studio/hb85/i2c.h

@@ -0,0 +1,27 @@
+/*
+Copyright 2016 Luiz Ribeiro <luizribeiro@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+// Please do not modify this file 
+
+#ifndef __I2C_H__
+#define __I2C_H__
+
+void i2c_init(void);
+void i2c_set_bitrate(uint16_t bitrate_khz);
+uint8_t i2c_send(uint8_t address, uint8_t *data, uint16_t length);
+
+#endif

keyboards/gray_studio/hb85/keymaps/default/keymap.c

@@ -0,0 +1,46 @@
+/*
+Copyright 2017 Luiz Ribeiro <luizribeiro@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include QMK_KEYBOARD_H
+
+// Layer shorthand
+enum layers {
+    _BASE  = 0, // Base
+    _CTRL       // Multimedia and RGB
+};
+
+#define KC_TGCT MO(_CTRL) // Toggles CTRL layer
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [_BASE] = LAYOUT(
+        KC_ESC ,    KC_F1  , KC_F2  , KC_F3  , KC_F4  ,  KC_F5  , KC_F6  , KC_F7  , KC_F8  ,  KC_F9  , KC_F10 , KC_F11 , KC_F12 ,  KC_TGCT,                           \
+KC_GRV , KC_1   , KC_2   , KC_3   , KC_4   , KC_5   , KC_6   , KC_7   , KC_8   , KC_9   , KC_0   , KC_MINS, KC_EQL , KC_BSPC, KC_BSPC, KC_PSLS, KC_PAST, KC_PMNS,     \
+KC_TAB ,     KC_Q   , KC_W   , KC_E   , KC_R   , KC_T   , KC_Y   , KC_U   , KC_I   , KC_O   , KC_P   , KC_LBRC, KC_RBRC,      KC_BSLS, KC_P7  , KC_P8  , KC_P9  ,     \
+KC_CAPS,        KC_A   , KC_S   , KC_D   , KC_F   , KC_G   , KC_H   , KC_J   , KC_K   , KC_L   , KC_SCLN, KC_QUOT,            KC_ENT , KC_P4  , KC_P5  , KC_P6  ,     \
+KC_LSFT, KC_NO  , KC_Z  , KC_Z   , KC_X   , KC_V   , KC_B   , KC_N   , KC_M   , KC_COMM, KC_DOT , KC_SLSH,           KC_RSFT, KC_UP  , KC_P1  , KC_P2  , KC_P3  ,     \
+    KC_LCTL, KC_LALT,                                  KC_SPC ,                               KC_RALT, KC_RGUI,      KC_LEFT, KC_DOWN, KC_RGHT, KC_P0  , KC_PDOT      \
+    ),
+
+    [_CTRL] = LAYOUT(
+        RESET ,    _______, _______, _______, _______,  _______, _______, _______, _______,  _______, _______, _______, _______,  _______,                            \
+_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,     \
+_______,     RGB_TOG, RGB_MOD, RGB_HUI, RGB_HUD, RGB_SAI, RGB_SAD, RGB_VAI, RGB_VAD, _______, _______, _______, _______,      _______, _______, _______, _______,     \
+_______,        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,            _______, _______, _______, _______,     \
+_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______, _______, _______, _______, _______,     \
+    _______, _______,                                  _______,                               _______, _______,      _______, _______, _______, _______, _______      \
+    ),
+};