Updated matrix.c for some PS2AVRGB boards and templates for new_project script (#2992)

* Add M6-A keymap

* Update XD60 keymap

* Update XD60 keymap readme

* Update JJ40 and Let's Split keymaps

* Add readme for M6-A

* Fix typo, update JJ40 README

* Update jj40 readme

* Cleanup jj40 keymap

* Revert Let's Split QWERTY layer to default before #2010

* Update numpad layers

* Fix: Let's Split keymap getting stuck mods due to having keycodes assigned on the Raise layer

* Keep ASCII art consistent with keymap

* Staryu: initial port

* Add personal keymap

* Added and updated READMEs

* Fix: default keymap for staryu

* Rudimentary backlight support.

* Enabled mousekeys for default keymap

* use QMK_KEYBOARD_H and LAYOUT

* Update readme.md for NIU mini: flash using avrdude

* Fix missing linebreaks for Staryu README

* Update readme.md

* Update PS2AVRGB boards with new matrix.c

* Update canoe matrix.c; untested

* Fix canoe.c for building (needs matrix_scan_user and matrix_init_user)

* Add personal Iris keymap

* Update keymap

* Update keymap

* Update keymap, disable backlighting and underglow

* Move PrintScreen button

* Add README

2 files changed, 60 insertions, 22 deletions

diff --git a/keyboards/mechmini/v1/matrix.c b/keyboards/mechmini/v1/matrix.c
index 140026013..245813dfd 100644
--- a/keyboards/mechmini/v1/matrix.c
+++ b/keyboards/mechmini/v1/matrix.c
@@ -29,6 +29,9 @@ static uint8_t debouncing = DEBOUNCE;
 static matrix_row_t matrix[MATRIX_ROWS];
 static matrix_row_t matrix_debouncing[MATRIX_ROWS];
 
+void matrix_set_row_status(uint8_t row);
+uint8_t bit_reverse(uint8_t x);
+
 void matrix_init(void) {
     // all outputs for rows high
     DDRB = 0xFF;
@@ -47,18 +50,8 @@ void matrix_init(void) {
         matrix[row] = 0x00;
         matrix_debouncing[row] = 0x00;
     }
-}
-
-void matrix_set_row_status(uint8_t row) {
-    DDRB = (1 << row);
-    PORTB = ~(1 << row);
-}
 
-uint8_t bit_reverse(uint8_t x) {
-    x = ((x >> 1) & 0x55) | ((x << 1) & 0xaa);
-    x = ((x >> 2) & 0x33) | ((x << 2) & 0xcc);
-    x = ((x >> 4) & 0x0f) | ((x << 4) & 0xf0);
-    return x;
+    matrix_init_quantum();
 }
 
 uint8_t matrix_scan(void) {
@@ -93,11 +86,24 @@ uint8_t matrix_scan(void) {
         }
     }
 
-    matrix_scan_user();
+    matrix_scan_quantum();
 
     return 1;
 }
 
+// declarations
+void matrix_set_row_status(uint8_t row) {
+    DDRB = (1 << row);
+    PORTB = ~(1 << row);
+}
+
+uint8_t bit_reverse(uint8_t x) {
+    x = ((x >> 1) & 0x55) | ((x << 1) & 0xaa);
+    x = ((x >> 2) & 0x33) | ((x << 2) & 0xcc);
+    x = ((x >> 4) & 0x0f) | ((x << 4) & 0xf0);
+    return x;
+}
+
 inline matrix_row_t matrix_get_row(uint8_t row) {
     return matrix[row];
 }
diff --git a/keyboards/mechmini/v1/v1.c b/keyboards/mechmini/v1/v1.c
index 24c74c6cf..508d60c78 100644
--- a/keyboards/mechmini/v1/v1.c
+++ b/keyboards/mechmini/v1/v1.c
@@ -22,23 +22,55 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "quantum.h"
 #include "rgblight.h"
 
-// custom RGB driver
+// for keyboard subdirectory level init functions
+// @Override
+void matrix_init_kb(void) {
+  // call user level keymaps, if any
+  matrix_init_user();
+}
+
+#ifdef RGBLIGHT_ENABLE
 extern rgblight_config_t rgblight_config;
+
+// custom RGB driver
 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;
-        }
+  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);
+}
 
+bool rgb_init = false;
+
+void matrix_scan_kb(void) {
+  // if LEDs were previously on before poweroff, turn them back on
+  if (rgb_init == false && rgblight_config.enable) {
     i2c_init();
     i2c_send(0xb0, (uint8_t*)led, 3 * RGBLED_NUM);
+    rgb_init = true;
+  }
+
+  rgblight_task();
+#else
+void matrix_scan_kb(void) {
+#endif
+  matrix_scan_user();
+  /* Nothing else for now. */
 }
 
-__attribute__ ((weak))
+__attribute__((weak)) // overridable
+void matrix_init_user(void) {
+
+}
+
+
+__attribute__((weak)) // overridable
 void matrix_scan_user(void) {
-    rgblight_task();
-     /* add other tasks to be done on each matrix scan */
+
 }