drivers: flash: stm32 driver move sem functions for multithread

Place the flash_stm32_sem_take and flash_stm32_sem_give
function to header file for common to use in any flash driver

Signed-off-by: Francois Ramu <francois.ramu@st.com>

Author: FRASTM

drivers/flash/flash_stm32.c

@@ -22,7 +22,6 @@
 #include <zephyr/logging/log.h>
 
 #include "flash_stm32.h"
-#include "stm32_hsem.h"
 
 LOG_MODULE_REGISTER(flash_stm32, CONFIG_FLASH_LOG_LEVEL);
 
@@ -59,32 +58,6 @@ int __weak flash_stm32_check_configuration(void)
 	return 0;
 }
 
-#if defined(CONFIG_MULTITHREADING)
-/*
- * This is named flash_stm32_sem_take instead of flash_stm32_lock (and
- * similarly for flash_stm32_sem_give) to avoid confusion with locking
- * actual flash pages.
- */
-static inline void _flash_stm32_sem_take(const struct device *dev)
-{
-	k_sem_take(&FLASH_STM32_PRIV(dev)->sem, K_FOREVER);
-	z_stm32_hsem_lock(CFG_HW_FLASH_SEMID, HSEM_LOCK_WAIT_FOREVER);
-}
-
-static inline void _flash_stm32_sem_give(const struct device *dev)
-{
-	z_stm32_hsem_unlock(CFG_HW_FLASH_SEMID);
-	k_sem_give(&FLASH_STM32_PRIV(dev)->sem);
-}
-
-#define flash_stm32_sem_init(dev) k_sem_init(&FLASH_STM32_PRIV(dev)->sem, 1, 1)
-#define flash_stm32_sem_take(dev) _flash_stm32_sem_take(dev)
-#define flash_stm32_sem_give(dev) _flash_stm32_sem_give(dev)
-#else
-#define flash_stm32_sem_init(dev)
-#define flash_stm32_sem_take(dev)
-#define flash_stm32_sem_give(dev)
-#endif
 
 #if !defined(CONFIG_SOC_SERIES_STM32WBX)
 static int flash_stm32_check_status(const struct device *dev)
@@ -319,7 +292,7 @@ int flash_stm32_option_bytes_lock(const struct device *dev, bool enable)
 {
 	FLASH_TypeDef *regs = FLASH_STM32_REGS(dev);
 
-#if defined(FLASH_OPTCR_OPTLOCK) /* F2, F4, F7 and H7 */
+#if defined(FLASH_OPTCR_OPTLOCK) /* F2, F4, F7 */
 	if (enable) {
 		regs->OPTCR |= FLASH_OPTCR_OPTLOCK;
 	} else if (regs->OPTCR & FLASH_OPTCR_OPTLOCK) {
@@ -395,7 +368,7 @@ static int flash_stm32_control_register_disable(const struct device *dev)
 {
 	FLASH_TypeDef *regs = FLASH_STM32_REGS(dev);
 
-#if defined(FLASH_CR_LOCK) /* F0, F1, F2, F3, F4, F7, L4, G0, G4, H7, WB, WL   \
+#if defined(FLASH_CR_LOCK) /* F0, F1, F2, F3, F4, F7, L4, G0, G4, WB, WL   \
 			    */
 	/*
 	 * Access to control register can be disabled by writing wrong key to
@@ -425,7 +398,7 @@ static int flash_stm32_option_bytes_disable(const struct device *dev)
 {
 	FLASH_TypeDef *regs = FLASH_STM32_REGS(dev);
 
-#if defined(FLASH_OPTCR_OPTLOCK) /* F2, F4, F7 and H7 */
+#if defined(FLASH_OPTCR_OPTLOCK) /* F2, F4, F7 */
 	/*
 	 * Access to option register can be disabled by writing wrong key to
 	 * the key register. Option register will remain disabled until reset.

drivers/flash/flash_stm32.h

@@ -10,6 +10,7 @@
 #define ZEPHYR_DRIVERS_FLASH_FLASH_STM32_H_
 
 #include <zephyr/drivers/flash.h>
+#include "stm32_hsem.h"
 
 #if DT_NODE_HAS_PROP(DT_INST(0, st_stm32_flash_controller), clocks) || \
 	DT_NODE_HAS_PROP(DT_INST(0, st_stm32h7_flash_controller), clocks)
@@ -271,6 +272,40 @@ static inline bool flash_stm32_range_exists(const struct device *dev,
 }
 #endif	/* CONFIG_FLASH_PAGE_LAYOUT */
 
+
+#if defined(CONFIG_MULTITHREADING) || defined(CONFIG_STM32H7_DUAL_CORE)
+/*
+ * This is named flash_stm32_sem_take instead of flash_stm32_lock (and
+ * similarly for flash_stm32_sem_give) to avoid confusion with locking
+ * actual flash pages.
+ */
+
+static inline void _flash_stm32_sem_take(const struct device *dev)
+{
+	k_sem_take(&FLASH_STM32_PRIV(dev)->sem, K_FOREVER);
+	z_stm32_hsem_lock(CFG_HW_FLASH_SEMID, HSEM_LOCK_WAIT_FOREVER);
+}
+
+static inline void _flash_stm32_sem_give(const struct device *dev)
+{
+	z_stm32_hsem_unlock(CFG_HW_FLASH_SEMID);
+	k_sem_give(&FLASH_STM32_PRIV(dev)->sem);
+}
+
+#define flash_stm32_sem_init(dev) k_sem_init(&FLASH_STM32_PRIV(dev)->sem, 1, 1)
+#define flash_stm32_sem_take(dev) _flash_stm32_sem_take(dev)
+#define flash_stm32_sem_give(dev) _flash_stm32_sem_give(dev)
+#else
+#define flash_stm32_sem_init(dev)
+#define flash_stm32_sem_take(dev)
+#define flash_stm32_sem_give(dev)
+#endif /* CONFIG_MULTITHREADING */
+
+#ifdef CONFIG_FLASH_EX_OP_ENABLED
+int flash_stm32_ex_op(const struct device *dev, uint16_t code,
+			     const uintptr_t in, void *out);
+#endif /* CONFIG_FLASH_EX_OP_ENABLED */
+
 static inline bool flash_stm32_valid_write(off_t offset, uint32_t len)
 {
 	return ((offset % FLASH_STM32_WRITE_BLOCK_SIZE == 0) &&

drivers/flash/flash_stm32h7x.c

@@ -62,33 +62,6 @@ struct flash_stm32_sector_t {
 	volatile uint32_t *sr;
 };
 
-#if defined(CONFIG_MULTITHREADING) || defined(CONFIG_STM32H7_DUAL_CORE)
-/*
- * This is named flash_stm32_sem_take instead of flash_stm32_lock (and
- * similarly for flash_stm32_sem_give) to avoid confusion with locking
- * actual flash sectors.
- */
-static inline void _flash_stm32_sem_take(const struct device *dev)
-{
-	k_sem_take(&FLASH_STM32_PRIV(dev)->sem, K_FOREVER);
-	z_stm32_hsem_lock(CFG_HW_FLASH_SEMID, HSEM_LOCK_WAIT_FOREVER);
-}
-
-static inline void _flash_stm32_sem_give(const struct device *dev)
-{
-	z_stm32_hsem_unlock(CFG_HW_FLASH_SEMID);
-	k_sem_give(&FLASH_STM32_PRIV(dev)->sem);
-}
-
-#define flash_stm32_sem_init(dev) k_sem_init(&FLASH_STM32_PRIV(dev)->sem, 1, 1)
-#define flash_stm32_sem_take(dev) _flash_stm32_sem_take(dev)
-#define flash_stm32_sem_give(dev) _flash_stm32_sem_give(dev)
-#else
-#define flash_stm32_sem_init(dev)
-#define flash_stm32_sem_take(dev)
-#define flash_stm32_sem_give(dev)
-#endif
-
 bool flash_stm32_valid_range(const struct device *dev, off_t offset, uint32_t len, bool write)
 {
 #if defined(DUAL_BANK)