summaryrefslogtreecommitdiffstats
path: root/keyboards/cannonkeys/stm32f072/keyboard.c
blob: bf35a76c18d1d2c34f25b5f2586cf8e2b0da331a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
#include "keyboard.h"
#include "ch.h"
#include "hal.h"
#include "led_custom.h"
#include "util.h"
#include "quantum.h"

#include "ws2812.h"

#include "raw_hid.h"
#include "dynamic_keymap.h"
#include "tmk_core/common/eeprom.h"
#include "version.h" // for QMK_BUILDDATE used in EEPROM magic

#include "via.h"
#define EEPROM_CUSTOM_BACKLIGHT (VIA_EEPROM_CUSTOM_CONFIG_ADDR)

backlight_config_t kb_backlight_config = {
  .enable = true,
  .breathing = true,
  .level = BACKLIGHT_LEVELS
};

void backlight_config_save(){
  eeprom_update_byte((uint8_t*)EEPROM_CUSTOM_BACKLIGHT, kb_backlight_config.raw);
}

void backlight_config_load(){
  kb_backlight_config.raw = eeprom_read_byte((uint8_t*)EEPROM_CUSTOM_BACKLIGHT);
}

// Called from via_init() if VIA_ENABLE
// Called from matrix_init_kb() if not VIA_ENABLE
void via_init_kb(void)
{
	// If the EEPROM has the magic, the data is good.
	// OK to load from EEPROM.
	if (via_eeprom_is_valid()) {
		backlight_config_load();
	} else	{
		// If the EEPROM has not been saved before, or is out of date,
		// save the default values to the EEPROM. Default values
		// come from construction of the backlight_config instance.
		backlight_config_save();

		// DO NOT set EEPROM valid here, let caller do this
	}
}

__attribute__ ((weak))
void matrix_init_board(void);

void matrix_init_kb(void){
	// If VIA is disabled, we still need to load backlight settings.
	// Call via_init_kb() the same way as via_init(), with setting
	// EEPROM valid afterwards.
#ifndef VIA_ENABLE
	via_init_kb();
	via_eeprom_set_valid(true);
#endif // VIA_ENABLE
      /* MOSI pin*/
#ifdef RGBLIGHT_ENABLE
    palSetPadMode(PORT_WS2812, PIN_WS2812, PAL_MODE_ALTERNATE(0));
    wait_ms(500);
    leds_init();
#endif
    backlight_init_ports();

    matrix_init_board();
}

void matrix_scan_kb(void)
{
  #ifdef RGBLIGHT_ENABLE
    rgblight_task();
  #endif
    matrix_scan_user();
}

bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
  switch (keycode) {
    case BL_INC:
      if (record->event.pressed) {
        kb_backlight_config.level = kb_backlight_config.level + 1;
        if(kb_backlight_config.level > BACKLIGHT_LEVELS){
          kb_backlight_config.level = BACKLIGHT_LEVELS;
        }
        backlight_set(kb_backlight_config.level);
        backlight_config_save();
      }
      return false;
    case BL_TOGG:
      if (record->event.pressed) {
        kb_backlight_config.enable = !kb_backlight_config.enable;
        if(kb_backlight_config.enable){
          backlight_set(kb_backlight_config.level);
        } else {
          backlight_set(0);
        }
        backlight_config_save();
      }
      return false;

    case BL_DEC:
      if (record->event.pressed) {
        if(kb_backlight_config.level <= 1){
          kb_backlight_config.level = 0;
        } else {
          kb_backlight_config.level = kb_backlight_config.level - 1;
        }
        backlight_set(kb_backlight_config.level);
        backlight_config_save();
      }
      return false;
    case BL_BRTG:
      if (record->event.pressed) {
        kb_backlight_config.breathing = !kb_backlight_config.breathing;
        breathing_toggle();
        backlight_config_save();
      }
      return false;
    default:
        break;
  }

  return process_record_user(keycode, record);;
}




//
// In the case of VIA being disabled, we still need to check if
// keyboard level EEPROM memory is valid before loading.
// Thus these are copies of the same functions in VIA, since
// the backlight settings reuse VIA's EEPROM magic/version,
// and the ones in via.c won't be compiled in.
//
// Yes, this is sub-optimal, and is only here for completeness
// (i.e. catering to the 1% of people that want wilba.tech LED bling
// AND want persistent settings BUT DON'T want to use dynamic keymaps/VIA).
//
#ifndef VIA_ENABLE

bool via_eeprom_is_valid(void)
{
    char *p = QMK_BUILDDATE; // e.g. "2019-11-05-11:29:54"
    uint8_t magic0 = ( ( p[2] & 0x0F ) << 4 ) | ( p[3]  & 0x0F );
    uint8_t magic1 = ( ( p[5] & 0x0F ) << 4 ) | ( p[6]  & 0x0F );
    uint8_t magic2 = ( ( p[8] & 0x0F ) << 4 ) | ( p[9]  & 0x0F );

    return (eeprom_read_byte( (void*)VIA_EEPROM_MAGIC_ADDR+0 ) == magic0 &&
            eeprom_read_byte( (void*)VIA_EEPROM_MAGIC_ADDR+1 ) == magic1 &&
            eeprom_read_byte( (void*)VIA_EEPROM_MAGIC_ADDR+2 ) == magic2 );
}

// Sets VIA/keyboard level usage of EEPROM to valid/invalid
// Keyboard level code (eg. via_init_kb()) should not call this
void via_eeprom_set_valid(bool valid)
{
    char *p = QMK_BUILDDATE; // e.g. "2019-11-05-11:29:54"
    uint8_t magic0 = ( ( p[2] & 0x0F ) << 4 ) | ( p[3]  & 0x0F );
    uint8_t magic1 = ( ( p[5] & 0x0F ) << 4 ) | ( p[6]  & 0x0F );
    uint8_t magic2 = ( ( p[8] & 0x0F ) << 4 ) | ( p[9]  & 0x0F );

    eeprom_update_byte( (void*)VIA_EEPROM_MAGIC_ADDR+0, valid ? magic0 : 0xFF);
    eeprom_update_byte( (void*)VIA_EEPROM_MAGIC_ADDR+1, valid ? magic1 : 0xFF);
    eeprom_update_byte( (void*)VIA_EEPROM_MAGIC_ADDR+2, valid ? magic2 : 0xFF);
}

void via_eeprom_reset(void)
{
    // Set the VIA specific EEPROM state as invalid.
    via_eeprom_set_valid(false);
    // Set the TMK/QMK EEPROM state as invalid.
    eeconfig_disable();
}

#endif // VIA_ENABLE