Haptic feedback generalized - DRV2605 and solenoids (#4939)

* initial work to add eeprom to haptic feedback and decouple the feedback process from keyboards

* Haptic feedback enhancements: on/off toggle working, feedback order working
todo:
-work on modes switching
-get modes switching to save to eeprom

* haptic enhancement - eeprom and modes added

* Added set and get functions for haptic feedback

* initial implementation of solenoids under haptic feedback

* changed eeprom to 32 bits to reserve blocks for future features

* start documentation of haptic feedback

* change keycode per comment from reviewers

* typo fixes

* added eeprom for solenoid configs

* added solenoid and docs

* Add/fix default parameters configs, improve docs

* more doc cleanup

* add in solenoid buzz toggle, clean up doc

* some fixes for error in compiling solenoid

* fix a chibios specific i2c read function and added one for AVR controllers in DRV2605L.c

* fixes for avr side issues

* update keymap

* fix keymap compile error

* fix bugs found during solenoid testing

* set pin that is not powered during bootloader

* added warning about certain pins on the MCU may trip solenoid during DFU/bootloader

drivers/haptic/haptic.h

@@ -0,0 +1,82 @@
+/* Copyright 2019 ishtob
+ * Driver for haptic feedback written for QMK
+ *
+ * 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 <stdint.h>
+#include <stdbool.h>
+#include "quantum.h"
+#ifdef DRV2605L
+#include "DRV2605L.h"
+#endif
+
+
+#ifndef HAPTIC_FEEDBACK_DEFAULT
+#define HAPTIC_FEEDBACK_DEFAULT 0
+#endif
+#ifndef HAPTIC_MODE_DEFAULT
+#define HAPTIC_MODE_DEFAULT DRV_MODE_DEFAULT
+#endif
+
+/* EEPROM config settings */
+typedef union {
+  uint32_t raw;
+  struct {
+    bool     enable    :1;
+    uint8_t  feedback  :2;
+    uint8_t  mode      :7;
+    bool     buzz      :1;
+    uint8_t  dwell     :7;
+    uint16_t reserved  :16; 
+  };
+} haptic_config_t;
+
+typedef enum HAPTIC_FEEDBACK{
+  KEY_PRESS,
+  KEY_PRESS_RELEASE,
+  KEY_RELEASE,
+  HAPTIC_FEEDBACK_MAX,
+} HAPTIC_FEEDBACK;
+
+bool process_haptic(uint16_t keycode, keyrecord_t *record);
+void haptic_init(void);
+void haptic_task(void);
+void eeconfig_debug_haptic(void);
+void haptic_enable(void);
+void haptic_disable(void);
+void haptic_toggle(void);
+void haptic_feedback_toggle(void);
+void haptic_mode_increase(void);
+void haptic_mode_decrease(void);
+void haptic_mode(uint8_t mode);
+void haptic_reset(void);
+void haptic_set_feedback(uint8_t feedback);
+void haptic_set_mode(uint8_t mode);
+void haptic_set_dwell(uint8_t dwell);
+void haptic_set_buzz(uint8_t buzz);
+void haptic_buzz_toggle(void);
+uint8_t haptic_get_mode(void);
+uint8_t haptic_get_feedback(void);
+void haptic_dwell_increase(void);
+void haptic_dwell_decrease(void);
+
+void haptic_play(void);
+void haptic_shutdown(void);
+
+
+
+
+