[WiP] drivers/at24cxxx: add support for st25dv04k

RIOT-OS · Jan 5, 2023 · eeb03f1 · eeb03f1
1 parent 46135f3
commit eeb03f1
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Showing 3 changed files with 29 additions and 1 deletion.
diff --git a/drivers/Makefile.dep b/drivers/Makefile.dep
@@ -12,7 +12,7 @@ ifneq (,$(filter apds99%,$(USEMODULE)))
  USEMODULE += apds99xx
 endif
 
-ifneq (,$(filter at24c%,$(USEMODULE)))
+ifneq (,$(filter at24c% st25dv%,$(USEMODULE)))
  USEMODULE += at24cxxx
 endif
 

diff --git a/drivers/at24cxxx/Makefile.include b/drivers/at24cxxx/Makefile.include
@@ -1,4 +1,5 @@
 PSEUDOMODULES += at24c%
+PSEUDOMODULES += st25dv%
 # handle at24cxxx being a distinct module
 NO_PSEUDOMODULES += at24cxxx
 

diff --git a/drivers/at24cxxx/include/at24cxxx_defines.h b/drivers/at24cxxx/include/at24cxxx_defines.h
@@ -321,6 +321,29 @@ extern "C" {
  / AT24CXXX_POLL_DELAY_US))
 /** @} */
 
+/**
+ * @name ST25DV04K constants
+ * @{
+ */
+/**
+ * @brief 256 byte memory
+ */
+#define ST25DV04K_EEPROM_SIZE (512U)
+/**
+ * @brief 16 pages of 16 bytes each
+ */
+#define ST25DV04K_PAGE_SIZE (4U)
+/**
+ * @brief Delay to complete write operation
+ */
+#define ST25DV04K_PAGE_WRITE_DELAY_US (5000U)
+/**
+ * @brief Number of poll attempts
+ */
+#define ST25DV04K_MAX_POLLS (1 + (ST25DV04K_PAGE_WRITE_DELAY_US \
+ / AT24CXXX_POLL_DELAY_US))
+/** @} */
+
 /**
  * @name Set constants depending on module
  * @{
@@ -373,6 +396,10 @@ extern "C" {
 #define AT24CXXX_EEPROM_SIZE (AT24MAC_EEPROM_SIZE)
 #define AT24CXXX_PAGE_SIZE (AT24MAC_PAGE_SIZE)
 #define AT24CXXX_MAX_POLLS (AT24MAC_MAX_POLLS)
+#elif IS_USED(MODULE_ST25DV04K)
+#define AT24CXXX_EEPROM_SIZE (ST25DV04K_EEPROM_SIZE)
+#define AT24CXXX_PAGE_SIZE (ST25DV04K_PAGE_SIZE)
+#define AT24CXXX_MAX_POLLS (ST25DV04K_MAX_POLLS)
 #else /* minimal */
 #define AT24CXXX_EEPROM_SIZE (128U) /**< EEPROM size */
 #define AT24CXXX_PAGE_SIZE (4U) /**< page size */