Merge pull request #42 from fpoussin/eeprom-pull

EEPROM Driver (pull request #42 from fpoussin/eeprom-pull)

The original driver was from barthess, modified by timonwong, fixed/cleaned it for 3.x/16.x+
Url: https://github.com/timonwong/ChibiOS-EEPROM
Testhal included, tested on real hardware as well for the SPI part.

1 files changed, 63 insertions, 0 deletions

diff --git a/os/hal/include/ee25xx.h b/os/hal/include/ee25xx.h
new file mode 100644
index 0000000..fc2ad6f
--- /dev/null
+++ b/os/hal/include/ee25xx.h
@@ -0,0 +1,63 @@
+/*
+  Copyright 2012 Uladzimir Pylinski aka barthess.
+  You may use this work without restrictions, as long as this notice is included.
+  The work is provided "as is" without warranty of any kind, neither express nor implied.
+*/
+
+#ifndef EE25XX_H
+#define EE25XX_H
+
+#include "hal.h"
+
+#if defined(HAL_USE_EEPROM) && HAL_USE_EEPROM && EEPROM_USE_EE25XX
+
+#define EEPROM_DEV_25XX 25
+
+/**
+ * @extends EepromFileConfig
+ */
+typedef struct {
+  _eeprom_file_config_data
+  /**
+   * Driver connected to IC.
+   */
+  SPIDriver       *spip;
+  /**
+   * Config associated with SPI driver.
+   */
+  const SPIConfig *spicfg;
+} SPIEepromFileConfig;
+
+/**
+ * @brief   @p SPIEepromFileStream specific data.
+ */
+#define _eeprom_file_stream_data_spi                                       \
+  _eeprom_file_stream_data
+
+/**
+ * @extends EepromFileStream
+ *
+ * @brief   EEPROM file stream driver class for SPI device.
+ */
+typedef struct {
+  const struct EepromFileStreamVMT *vmt;
+  _eeprom_file_stream_data_spi
+  /* Overwritten parent data member. */
+  const SPIEepromFileConfig *cfg;
+} SPIEepromFileStream;
+
+/**
+ * Open SPI EEPROM IC as file and return pointer to the file stream object
+ * @note      Fucntion allways successfully open file. All checking makes
+ *            in read/write functions.
+ */
+EepromFileStream *SPIEepromFileOpen(SPIEepromFileStream *efs,
+                                    const SPIEepromFileConfig *eepcfg,
+                                    const EepromDevice *eepdev);
+
+#define SPIEepromFileOpen(efs, eepcfg, eepdev) \
+  EepromFileOpen((EepromFileStream *)efs, (EepromFileConfig *)eepcfg, eepdev);
+
+#endif /* #if defined(EEPROM_USE_EE25XX) && EEPROM_USE_EE25XX */
+
+#endif // EE25XX_H