Adds raw write functions to the OLED driver (qmk#7237)

* Added oled_write_raw and oled_write_raw_P functions to the OLED driver

* Added oled_write_raw method calls to feature_oled_driver.md

Author: Thomas Baart

docs/feature_oled_driver.md

@@ -229,6 +229,12 @@ void oled_write_P(const char *data, bool invert);
 // Remapped to call 'void oled_write_ln(const char *data, bool invert);' on ARM
 void oled_write_ln_P(const char *data, bool invert);
 
+// Writes a string to the buffer at current cursor position
+void oled_write_raw(const char *data, uint16_t size);
+
+// Writes a PROGMEM string to the buffer at current cursor position
+void oled_write_raw_P(const char *data, uint16_t size);
+
 // Can be used to manually turn on the screen if it is off
 // Returns true if the screen was on or turns on
 bool oled_on(void);

drivers/oled/oled_driver.c

@@ -431,6 +431,15 @@ void oled_write_ln(const char *data, bool invert) {
     oled_advance_page(true);
 }
 
+void oled_write_raw(const char *data, uint16_t size) {
+    if (size > OLED_MATRIX_SIZE) size = OLED_MATRIX_SIZE;
+    for (uint16_t i = 0; i < size; i++) {
+        if (oled_buffer[i] == data[i]) continue;
+        oled_buffer[i] = data[i];
+        oled_dirty |= (1 << (i / OLED_BLOCK_SIZE));
+    }
+}
+
 #if defined(__AVR__)
 void oled_write_P(const char *data, bool invert) {
     uint8_t c = pgm_read_byte(data);
@@ -444,6 +453,16 @@ void oled_write_ln_P(const char *data, bool invert) {
     oled_write_P(data, invert);
     oled_advance_page(true);
 }
+
+void oled_write_raw_P(const char *data, uint16_t size) {
+    if (size > OLED_MATRIX_SIZE) size = OLED_MATRIX_SIZE;
+    for (uint16_t i = 0; i < size; i++) {
+        uint8_t c = pgm_read_byte(++data);
+        if (oled_buffer[i] == c) continue;
+        oled_buffer[i] = c;
+        oled_dirty |= (1 << (i / OLED_BLOCK_SIZE));
+    }
+}
 #endif  // defined(__AVR__)
 
 bool oled_on(void) {
@@ -566,4 +585,4 @@ void oled_task(void) {
 #endif
 }
 
-__attribute__((weak)) void oled_task_user(void) {}
+__attribute__((weak)) void oled_task_user(void) {}

drivers/oled/oled_driver.h

@@ -200,6 +200,8 @@ void oled_write(const char *data, bool invert);
 // Advances the cursor to the next page, wiring ' ' to the remainder of the current page
 void oled_write_ln(const char *data, bool invert);
 
+void oled_write_raw(const char *data, uint16_t size);
+
 #if defined(__AVR__)
 // Writes a PROGMEM string to the buffer at current cursor position
 // Advances the cursor while writing, inverts the pixels if true
@@ -211,6 +213,8 @@ void oled_write_P(const char *data, bool invert);
 // Advances the cursor to the next page, wiring ' ' to the remainder of the current page
 // Remapped to call 'void oled_write_ln(const char *data, bool invert);' on ARM
 void oled_write_ln_P(const char *data, bool invert);
+
+void oled_write_raw_P(const char *data, uint16_t size);
 #else
 // Writes a string to the buffer at current cursor position
 // Advances the cursor while writing, inverts the pixels if true
@@ -254,4 +258,4 @@ bool oled_scroll_off(void);
 uint8_t oled_max_chars(void);
 
 // Returns the maximum number of lines that will fit on the oled
-uint8_t oled_max_lines(void);
+uint8_t oled_max_lines(void);