Keyboard: Improvement of crkbd communication functions (based on helix-keyboard) (#3798)

* improvement of crkbd communication functions (based on  helix-keyboard)

* Removed unnecessary code.

* Changed read restriction from #define to #pragma once.

* Changed from sizeof to defined size.

* moved lib folder to crkbdroot.
removed warning of ws2812.d

7 files changed, 152 insertions, 0 deletions

diff --git a/keyboards/crkbd/lib/host_led_state_reader.c b/keyboards/crkbd/lib/host_led_state_reader.c
new file mode 100644
index 000000000..41ac55dc2
--- /dev/null
+++ b/keyboards/crkbd/lib/host_led_state_reader.c
@@ -0,0 +1,15 @@
+#include <stdio.h>
+#include "crkbd.h"
+
+char host_led_state_str[24];
+
+const char *read_host_led_state(void)
+{
+  uint8_t leds = host_keyboard_leds();
+  snprintf(host_led_state_str, sizeof(host_led_state_str), "NL:%s CL:%s SL:%s",
+           (leds & (1 << USB_LED_NUM_LOCK)) ? "on" : "- ",
+           (leds & (1 << USB_LED_CAPS_LOCK)) ? "on" : "- ",
+           (leds & (1 << USB_LED_SCROLL_LOCK)) ? "on" : "- ");
+
+  return host_led_state_str;
+}
diff --git a/keyboards/crkbd/lib/keylogger.c b/keyboards/crkbd/lib/keylogger.c
new file mode 100644
index 000000000..8f2a8ce3c
--- /dev/null
+++ b/keyboards/crkbd/lib/keylogger.c
@@ -0,0 +1,45 @@
+#include <stdio.h>
+#include "crkbd.h"
+
+char keylog_str[24] = {};
+char keylogs_str[21] = {};
+int keylogs_str_idx = 0;
+
+const char code_to_name[60] = {
+    ' ', ' ', ' ', ' ', 'a', 'b', 'c', 'd', 'e', 'f',
+    'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p',
+    'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
+    '1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
+    'R', 'E', 'B', 'T', ' ', ' ', ' ', ' ', ' ', ' ',
+    ' ', ';', '\'', ' ', ',', '.', '/', ' ', ' ', ' '};
+
+void set_keylog(uint16_t keycode, keyrecord_t *record) {
+  char name = ' ';
+  if (keycode < 60) {
+    name = code_to_name[keycode];
+  }
+
+  // update keylog
+  snprintf(keylog_str, sizeof(keylog_str), "%dx%d, k%2d : %c",
+           record->event.key.row, record->event.key.col,
+           keycode, name);
+
+  // update keylogs
+  if (keylogs_str_idx == sizeof(keylogs_str) - 1) {
+    keylogs_str_idx = 0;
+    for (int i = 0; i < sizeof(keylogs_str) - 1; i++) {
+      keylogs_str[i] = ' ';
+    }
+  }
+
+  keylogs_str[keylogs_str_idx] = name;
+  keylogs_str_idx++;
+}
+
+const char *read_keylog(void) {
+  return keylog_str;
+}
+
+const char *read_keylogs(void) {
+  return keylogs_str;
+}
diff --git a/keyboards/crkbd/lib/layer_state_reader.c b/keyboards/crkbd/lib/layer_state_reader.c
new file mode 100644
index 000000000..eddb71337
--- /dev/null
+++ b/keyboards/crkbd/lib/layer_state_reader.c
@@ -0,0 +1,35 @@
+
+#include QMK_KEYBOARD_H
+#include <stdio.h>
+#include "crkbd.h"
+
+#define L_BASE 0
+#define L_LOWER 8
+#define L_RAISE 16
+#define L_ADJUST 65536
+#define L_ADJUST_TRI 65560
+
+char layer_state_str[24];
+
+const char *read_layer_state(void) {
+  switch (layer_state)
+  {
+  case L_BASE:
+    snprintf(layer_state_str, sizeof(layer_state_str), "Layer: Default");
+    break;
+  case L_RAISE:
+    snprintf(layer_state_str, sizeof(layer_state_str), "Layer: Raise");
+    break;
+  case L_LOWER:
+    snprintf(layer_state_str, sizeof(layer_state_str), "Layer: Lower");
+    break;
+  case L_ADJUST:
+  case L_ADJUST_TRI:
+    snprintf(layer_state_str, sizeof(layer_state_str), "Layer: Adjust");
+    break;
+  default:
+    snprintf(layer_state_str, sizeof(layer_state_str), "Layer: Undef-%ld", layer_state);
+  }
+
+  return layer_state_str;
+}
diff --git a/keyboards/crkbd/lib/logo_reader.c b/keyboards/crkbd/lib/logo_reader.c
new file mode 100644
index 000000000..1bc1503a6
--- /dev/null
+++ b/keyboards/crkbd/lib/logo_reader.c
@@ -0,0 +1,11 @@
+#include "crkbd.h"
+
+const char *read_logo(void) {
+  static char logo[] = {
+      0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f, 0x90, 0x91, 0x92, 0x93, 0x94,
+      0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0xaa, 0xab, 0xac, 0xad, 0xae, 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0xb4,
+      0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0xd4,
+      0};
+
+  return logo;
+}
diff --git a/keyboards/crkbd/lib/mode_icon_reader.c b/keyboards/crkbd/lib/mode_icon_reader.c
new file mode 100644
index 000000000..04c226506
--- /dev/null
+++ b/keyboards/crkbd/lib/mode_icon_reader.c
@@ -0,0 +1,15 @@
+#include <stdio.h>
+#include "crkbd.h"
+
+char mode_icon[24];
+
+const char *read_mode_icon(bool swap) {
+  static char logo[][2][3] = {{{0x95, 0x96, 0}, {0xb5, 0xb6, 0}}, {{0x97, 0x98, 0}, {0xb7, 0xb8, 0}}};
+  if (swap == false) {
+    snprintf(mode_icon, sizeof(mode_icon), "%s\n%s", logo[0][0], logo[0][1]);
+  } else {
+    snprintf(mode_icon, sizeof(mode_icon), "%s\n%s", logo[1][0], logo[1][1]);
+  }
+
+  return mode_icon;
+}
diff --git a/keyboards/crkbd/lib/rgb_state_reader.c b/keyboards/crkbd/lib/rgb_state_reader.c
new file mode 100644
index 000000000..e0efe2e52
--- /dev/null
+++ b/keyboards/crkbd/lib/rgb_state_reader.c
@@ -0,0 +1,15 @@
+#ifdef RGBLIGHT_ENABLE
+
+#include QMK_KEYBOARD_H
+#include <stdio.h>
+
+extern rgblight_config_t rgblight_config;
+char rbf_info_str[24];
+const char *read_rgb_info(void) {
+
+  snprintf(rbf_info_str, sizeof(rbf_info_str), "%s %2d h%3d s%3d v%3d",
+    rgblight_config.enable ? "on" : "- ", rgblight_config.mode,
+    rgblight_config.hue, rgblight_config.sat, rgblight_config.val);
+  return rbf_info_str;
+}
+#endif
diff --git a/keyboards/crkbd/lib/timelogger.c b/keyboards/crkbd/lib/timelogger.c
new file mode 100644
index 000000000..69828a3a0
--- /dev/null
+++ b/keyboards/crkbd/lib/timelogger.c
@@ -0,0 +1,16 @@
+#include <stdio.h>
+#include "crkbd.h"
+
+char timelog_str[24] = {};
+int last_time = 0;
+int elapsed_time = 0;
+
+void set_timelog(void) {
+  elapsed_time = timer_elapsed(last_time);
+  last_time = timer_read();
+  snprintf(timelog_str, sizeof(timelog_str), "lt:%5d, et:%5d", last_time, elapsed_time);
+}
+
+const char *read_timelog(void) {
+  return timelog_str;
+}