update code base to Marlin 2.0.9.2

2021-10-03 18:57:12 +02:00
parent b9d7ba838e
commit 7077da3591
2617 changed files with 332093 additions and 103438 deletions
--- a/Marlin/src/HAL/shared/eeprom_if_i2c.cpp
+++ b/Marlin/src/HAL/shared/eeprom_if_i2c.cpp
@@ -0,0 +1,102 @@
+/**
+ * Marlin 3D Printer Firmware
+ * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
+ *
+ * Based on Sprinter and grbl.
+ * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
+ *
+ * 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 3 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 <https://www.gnu.org/licenses/>.
+ *
+ */
+
+/**
+ * Platform-independent Arduino functions for I2C EEPROM.
+ * Enable USE_SHARED_EEPROM if not supplied by the framework.
+ */
+
+#include "../../inc/MarlinConfig.h"
+
+#if ENABLED(I2C_EEPROM)
+
+#include "eeprom_if.h"
+
+#if ENABLED(SOFT_I2C_EEPROM)
+  #include <SlowSoftWire.h>
+  SlowSoftWire Wire = SlowSoftWire(I2C_SDA_PIN, I2C_SCL_PIN, true);
+#else
+  #include <Wire.h>
+#endif
+
+void eeprom_init() {
+  Wire.begin(
+    #if PINS_EXIST(I2C_SCL, I2C_SDA) && DISABLED(SOFT_I2C_EEPROM)
+      uint8_t(I2C_SDA_PIN), uint8_t(I2C_SCL_PIN)
+    #endif
+  );
+}
+
+#if ENABLED(USE_SHARED_EEPROM)
+
+#ifndef EEPROM_WRITE_DELAY
+  #define EEPROM_WRITE_DELAY    5
+#endif
+#ifndef EEPROM_DEVICE_ADDRESS
+  #define EEPROM_DEVICE_ADDRESS  0x50
+#endif
+
+static constexpr uint8_t eeprom_device_address = I2C_ADDRESS(EEPROM_DEVICE_ADDRESS);
+
+// ------------------------
+// Public functions
+// ------------------------
+
+#define SMALL_EEPROM (MARLIN_EEPROM_SIZE <= 2048)
+
+// Combine Address high bits into the device address on <=16Kbit (2K) and >512Kbit (64K) EEPROMs.
+// Note: MARLIN_EEPROM_SIZE is specified in bytes, whereas EEPROM model numbers refer to bits.
+//       e.g., The "16" in BL24C16 indicates a 16Kbit (2KB) size.
+static uint8_t _eeprom_calc_device_address(uint8_t * const pos) {
+  const unsigned eeprom_address = (unsigned)pos;
+  return (SMALL_EEPROM || MARLIN_EEPROM_SIZE > 65536)
+    ? uint8_t(eeprom_device_address | ((eeprom_address >> (SMALL_EEPROM ? 8 : 16)) & 0x07))
+    : eeprom_device_address;
+}
+
+static void _eeprom_begin(uint8_t * const pos) {
+  const unsigned eeprom_address = (unsigned)pos;
+  Wire.beginTransmission(_eeprom_calc_device_address(pos));
+  if (!SMALL_EEPROM)
+    Wire.write(uint8_t((eeprom_address >> 8) & 0xFF));  // Address High, if needed
+  Wire.write(uint8_t(eeprom_address & 0xFF));           // Address Low
+}
+
+void eeprom_write_byte(uint8_t *pos, uint8_t value) {
+  _eeprom_begin(pos);
+  Wire.write(value);
+  Wire.endTransmission();
+
+  // wait for write cycle to complete
+  // this could be done more efficiently with "acknowledge polling"
+  delay(EEPROM_WRITE_DELAY);
+}
+
+uint8_t eeprom_read_byte(uint8_t *pos) {
+  _eeprom_begin(pos);
+  Wire.endTransmission();
+  Wire.requestFrom(_eeprom_calc_device_address(pos), (byte)1);
+  return Wire.available() ? Wire.read() : 0xFF;
+}
+
+#endif // USE_SHARED_EEPROM
+#endif // I2C_EEPROM