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

1 files changed, 248 insertions, 0 deletions

diff --git a/drivers/haptic/haptic.c b/drivers/haptic/haptic.c
new file mode 100644
index 000000000..a94f05565
--- /dev/null
+++ b/drivers/haptic/haptic.c
@@ -0,0 +1,248 @@
+/* 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/>.
+ */
+#include "haptic.h"
+#include "eeconfig.h"
+#include "progmem.h"
+#include "debug.h"
+#ifdef DRV2605L
+#include "DRV2605L.h"
+#endif
+#ifdef SOLENOID_ENABLE
+#include "solenoid.h"
+#endif
+
+haptic_config_t haptic_config;
+
+void haptic_init(void) {
+  debug_enable = 1; //Debug is ON!
+  if (!eeconfig_is_enabled()) {
+        eeconfig_init();
+  }
+  haptic_config.raw = eeconfig_read_haptic();
+  if (haptic_config.mode < 1){
+  haptic_config.mode = 1;
+  }
+  if (!haptic_config.mode){
+  dprintf("No haptic config found in eeprom, setting default configs\n");
+  haptic_reset();
+  }
+  #ifdef SOLENOID_ENABLE
+    solenoid_setup();
+    dprintf("Solenoid driver initialized\n");
+  #endif
+  #ifdef DRV2605L
+    DRV_init();
+    dprintf("DRV2605 driver initialized\n");
+  #endif
+  eeconfig_debug_haptic();
+}
+
+void haptic_task(void) {
+  #ifdef SOLENOID_ENABLE
+  solenoid_check();
+  #endif
+}
+
+void eeconfig_debug_haptic(void) {
+  dprintf("haptic_config eprom\n");
+  dprintf("haptic_config.enable = %d\n", haptic_config.enable);
+  dprintf("haptic_config.mode = %d\n", haptic_config.mode);
+}
+
+void haptic_enable(void) {
+  haptic_config.enable = 1;
+  xprintf("haptic_config.enable = %u\n", haptic_config.enable);
+  eeconfig_update_haptic(haptic_config.raw);
+}
+
+void haptic_disable(void) {
+  haptic_config.enable = 0;
+  xprintf("haptic_config.enable = %u\n", haptic_config.enable);
+  eeconfig_update_haptic(haptic_config.raw);
+}
+
+void haptic_toggle(void) {
+if (haptic_config.enable) {
+  haptic_disable();
+  } else {
+  haptic_enable();
+  }
+  eeconfig_update_haptic(haptic_config.raw);
+}
+
+void haptic_feedback_toggle(void){
+ haptic_config.feedback++;
+  if (haptic_config.feedback >= HAPTIC_FEEDBACK_MAX)
+  haptic_config.feedback = KEY_PRESS;
+  xprintf("haptic_config.feedback = %u\n", !haptic_config.feedback);
+  eeconfig_update_haptic(haptic_config.raw);
+}
+
+void haptic_buzz_toggle(void) {
+  bool buzz_stat = !haptic_config.buzz;
+  haptic_config.buzz = buzz_stat;
+  haptic_set_buzz(buzz_stat);
+}
+
+void haptic_mode_increase(void) {
+  uint8_t mode = haptic_config.mode + 1;
+  #ifdef DRV2605L
+  if (haptic_config.mode >= drv_effect_max) {
+    mode = 1;
+  }
+  #endif
+    haptic_set_mode(mode);
+}
+
+void haptic_mode_decrease(void) {
+  uint8_t mode = haptic_config.mode -1;
+  #ifdef DRV2605L
+  if (haptic_config.mode < 1) {
+    mode = (drv_effect_max - 1);
+  }
+  #endif
+  haptic_set_mode(mode);
+}
+
+void haptic_dwell_increase(void) {
+  uint8_t dwell = haptic_config.dwell + 1;
+  #ifdef SOLENOID_ENABLE
+  if (haptic_config.dwell >= SOLENOID_MAX_DWELL) {
+    dwell = 1;
+  }
+  solenoid_set_dwell(dwell);
+  #endif
+  haptic_set_dwell(dwell);
+}
+
+void haptic_dwell_decrease(void) {
+  uint8_t dwell = haptic_config.dwell -1;
+  #ifdef SOLENOID_ENABLE
+  if (haptic_config.dwell < SOLENOID_MIN_DWELL) {
+    dwell = SOLENOID_MAX_DWELL;
+  }
+  solenoid_set_dwell(dwell);
+  #endif
+  haptic_set_dwell(dwell);
+}
+
+void haptic_reset(void){
+  haptic_config.enable = true;
+  uint8_t feedback = HAPTIC_FEEDBACK_DEFAULT;
+  haptic_config.feedback = feedback;
+  #ifdef DRV2605L
+    uint8_t mode = HAPTIC_MODE_DEFAULT;
+    haptic_config.mode = mode;
+  #endif
+  #ifdef SOLENOID_ENABLE
+    uint8_t dwell = SOLENOID_DEFAULT_DWELL;
+    haptic_config.dwell = dwell;
+  #endif
+  eeconfig_update_haptic(haptic_config.raw);
+  xprintf("haptic_config.feedback = %u\n", haptic_config.feedback);
+  xprintf("haptic_config.mode = %u\n", haptic_config.mode);
+}
+
+void haptic_set_feedback(uint8_t feedback) {
+  haptic_config.feedback = feedback;
+  eeconfig_update_haptic(haptic_config.raw);
+  xprintf("haptic_config.feedback = %u\n", haptic_config.feedback);
+}
+
+void haptic_set_mode(uint8_t mode) {
+  haptic_config.mode = mode;
+  eeconfig_update_haptic(haptic_config.raw);
+  xprintf("haptic_config.mode = %u\n", haptic_config.mode);
+}
+
+void haptic_set_buzz(uint8_t buzz) {
+  haptic_config.buzz = buzz;
+  eeconfig_update_haptic(haptic_config.raw);
+  xprintf("haptic_config.buzz = %u\n", haptic_config.buzz);
+}
+
+void haptic_set_dwell(uint8_t dwell) {
+  haptic_config.dwell = dwell;
+  eeconfig_update_haptic(haptic_config.raw);
+  xprintf("haptic_config.dwell = %u\n", haptic_config.dwell);
+}
+
+uint8_t haptic_get_mode(void) {
+  if (!haptic_config.enable){
+    return false;
+  }
+  return haptic_config.mode;
+}
+
+uint8_t haptic_get_feedback(void) {
+  if (!haptic_config.enable){
+    return false;
+  }
+  return haptic_config.feedback;
+}
+
+uint8_t haptic_get_dwell(void) {
+  if (!haptic_config.enable){
+    return false;
+  }
+  return haptic_config.dwell;
+}
+
+void haptic_play(void) {
+  #ifdef DRV2605L
+  uint8_t play_eff = 0;
+  play_eff = haptic_config.mode;
+  DRV_pulse(play_eff);
+  #endif
+  #ifdef SOLENOID_ENABLE
+  solenoid_fire();
+  #endif
+}
+
+bool process_haptic(uint16_t keycode, keyrecord_t *record) {
+    if (keycode == HPT_ON && record->event.pressed) { haptic_enable(); }
+    if (keycode == HPT_OFF && record->event.pressed) { haptic_disable(); }
+    if (keycode == HPT_TOG && record->event.pressed) { haptic_toggle(); }
+    if (keycode == HPT_RST && record->event.pressed) { haptic_reset(); }
+    if (keycode == HPT_FBK && record->event.pressed) { haptic_feedback_toggle(); }
+    if (keycode == HPT_BUZ && record->event.pressed) { haptic_buzz_toggle(); }
+    if (keycode == HPT_MODI && record->event.pressed) { haptic_mode_increase(); }
+    if (keycode == HPT_MODD && record->event.pressed) { haptic_mode_decrease(); }
+    if (keycode == HPT_DWLI && record->event.pressed) { haptic_dwell_increase(); }
+    if (keycode == HPT_DWLD && record->event.pressed) { haptic_dwell_decrease(); }
+  if (haptic_config.enable) {
+    if ( record->event.pressed ) {
+        // keypress
+      if (haptic_config.feedback < 2) {
+      haptic_play();
+      }
+    } else {
+    //keyrelease
+      if (haptic_config.feedback > 0) {
+      haptic_play();
+      } 
+    }
+  }
+  return true;
+}
+
+void haptic_shutdown(void) {
+  #ifdef SOLENOID_ENABLE
+  solenoid_shutdown();
+  #endif
+
+}